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Fix BLE compile with core 3.0.0 (#21182) 

* Delete lib/libesp32_div/NimBLE-Arduino directory
* rm obsolete ignores
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# Changelog
All notable changes to this project will be documented in this file.
## [1.4.1] - 2022-10-23
### Fixed
- Compile warning removed for esp32c3
- NimBLEDevice::getPower incorrect value when power level is -3db.
- Failed pairing when already in progress.
### Changed
- Revert previous change that forced writing with response when subscribing in favor of allowing the application to decide.
### Added
- Added NimBLEHIDDevice::batteryLevel.
- Added NimBLEDevice::setDeviceName allowing for changing the device name while the BLE stack is active.
- CI build tests.
- Missing items in CHANGELOG that were not recorded correctly
## [1.4.0] - 2022-07-10
### Fixed
- Fixed missing data from long notification values.
- Fixed NimbleCharacteristicCallbacks::onRead not being called when a non-long read command is received.
### Changed
- Updated NimBLE core to use the v1.4.0 branch of esp-nimble.
- AD flags are no longer set in the advertisements of non-connectable beacons, freeing up 3 bytes of advertisement room.
- Config option CONFIG_BT_NIMBLE_DEBUG replaced with CONFIG_BT_NIMBLE_LOG_LEVEL (see src/nimconfig.h for usage)
- Config option CONFIG_NIMBLE_CPP_ENABLE_ADVERTISMENT_TYPE_TEXT renamed to CONFIG_NIMBLE_CPP_ENABLE_ADVERTISEMENT_TYPE_TEXT
- Config option CONFIG_BT_NIMBLE_TASK_STACK_SIZE renamed to CONFIG_BT_NIMBLE_HOST_TASK_STACK_SIZE
### Added
- Preliminary support for non-esp devices, NRF51 and NRF52 devices supported with [n-able arduino core](https://github.com/h2zero/n-able-Arduino)
- Alias added for `NimBLEServerCallbacks::onMTUChange` to `onMtuChanged` in order to support porting code from original library.
- `NimBLEAttValue` Class added to reduce and control RAM footprint of characteristic/descriptor values and support conversions from Arduino Strings and many other data types.
- Bluetooth 5 extended advertising support for capable devices. CODED Phy, 2M Phy, extended advertising data, and multi-advertising are supported, periodic advertising will be implemented in the future.
## [1.3.8] - 2022-04-27
### Fixed
- Fix compile error with ESP32S3.
- Prevent a potential crash when retrieving characteristics from a service if the result was successful but no characteristics found.
### Changed
- Save resources when retrieving descriptors if the characteristic handle is the same as the end handle (no descriptors).
- Subscribing to characteristic notifications/indications will now always use write with response, as per BLE specifications.
- `NimBLEClient::discoverAttributes` now returns a bool value to indicate success/failure
## [1.3.7] - 2022-02-15
### Fixed
- Crash when retrieving an attribute that does not exist on the peer.
- Memory leak when deleting client instances.
- Compilation errors for esp32s3
## [1.3.6] - 2022-01-18
### Changed
- When retrieving attributes from a server fails with a 128bit UUID containing the ble base UUID another attempt will be made with the 16bit version of the UUID.
### Fixed
- Memory leak when services are changed on server devices.
- Rare crashing that occurs when BLE commands are sent from ISR context using IPC.
- Crashing caused by uninitialized disconnect timer in client.
- Potential crash due to uninitialized advertising callback pointer.
## [1.3.5] - 2022-01-14
### Added
- CONFIG_NIMBLE_CPP_DEBUG_LEVEL macro in nimconfig.h to allow setting the log level separately from the Arduino core log level.
### Fixed
- Memory leak when initializing/deinitializing the BLE stack caused by new FreeRTOS timers be created on each initialization.
## [1.3.4] - 2022-01-09
### Fixed
- Workaround for latest Arduino-esp32 core that causes tasks not to block when required, which caused functions to return prematurely resulting in exceptions/crashing.
- The wrong length value was being used to set the values read from peer attributes. This has been corrected to use the proper value size.
## [1.3.3] - 2021-11-24
### Fixed
- Workaround added for FreeRTOS bug that affected timers, causing scan and advertising timer expirations to not correctly trigger callbacks.
## [1.3.2] - 2021-11-20
### Fixed
- Added missing macros for scan filter.
### Added
- `NimBLEClient::getLastError` : Gets the error code of the last function call that produces a return code from the stack.
## [1.3.1] - 2021-08-04
### Fixed
- Corrected a compiler/linker error when an application or a library uses bluetooth classic due to the redefinition of `btInUse`.
## [1.3.0] - 2021-08-02
### Added
- `NimBLECharacteristic::removeDescriptor`: Dynamically remove a descriptor from a characteristic. Takes effect after all connections are closed and sends a service changed indication.
- `NimBLEService::removeCharacteristic`: Dynamically remove a characteristic from a service. Takes effect after all connections are closed and sends a service changed indication
- `NimBLEServerCallbacks::onMTUChange`: This is callback is called when the MTU is updated after connection with a client.
- ESP32C3 support
- Whitelist API:
- `NimBLEDevice::whiteListAdd`: Add a device to the whitelist.
- `NimBLEDevice::whiteListRemove`: Remove a device from the whitelist.
- `NimBLEDevice::onWhiteList`: Check if the device is on the whitelist.
- `NimBLEDevice::getWhiteListCount`: Gets the size of the whitelist
- `NimBLEDevice::getWhiteListAddress`: Get the address of a device on the whitelist by index value.
- Bond management API:
- `NimBLEDevice::getNumBonds`: Gets the number of bonds stored.
- `NimBLEDevice::isBonded`: Checks if the device is bonded.
- `NimBLEDevice::deleteAllBonds`: Deletes all bonds.
- `NimBLEDevice::getBondedAddress`: Gets the address of a bonded device by the index value.
- `NimBLECharacteristic::getCallbacks` to retrieve the current callback handler.
- Connection Information class: `NimBLEConnInfo`.
- `NimBLEScan::clearDuplicateCache`: This can be used to reset the cache of advertised devices so they will be immediately discovered again.
### Changed
- FreeRTOS files have been removed as they are not used by the library.
- Services, characteristics and descriptors can now be created statically and added after.
- Excess logging and some asserts removed.
- Use ESP_LOGx macros to enable using local log level filtering.
### Fixed
- `NimBLECharacteristicCallbacks::onSubscribe` Is now called after the connection is added to the vector.
- Corrected bonding failure when reinitializing the BLE stack.
- Writing to a characteristic with a std::string value now correctly writes values with null characters.
- Retrieving remote descriptors now uses the characteristic end handle correctly.
- Missing data in long writes to remote descriptors.
- Hanging on task notification when sending an indication from the characteristic callback.
- BLE controller memory could be released when using Arduino as a component.
- Compile errors with NimBLE release 1.3.0.
## [1.2.0] - 2021-02-08
### Added
- `NimBLECharacteristic::getDescriptorByHandle`: Return the BLE Descriptor for the given handle.
- `NimBLEDescriptor::getStringValue`: Get the value of this descriptor as a string.
- `NimBLEServer::getServiceByHandle`: Get a service by its handle.
- `NimBLEService::getCharacteristicByHandle`: Get a pointer to the characteristic object with the specified handle.
- `NimBLEService::getCharacteristics`: Get the vector containing pointers to each characteristic associated with this service.
Overloads to get a vector containing pointers to all the characteristics in a service with the UUID. (supports multiple same UUID's in a service)
- `NimBLEService::getCharacteristics(const char *uuid)`
- `NimBLEService::getCharacteristics(const NimBLEUUID &uuid)`
- `NimBLEAdvertisementData` New methods:
- `NimBLEAdvertisementData::addTxPower`: Adds transmission power to the advertisement.
- `NimBLEAdvertisementData::setPreferredParams`: Adds connection parameters to the advertisement.
- `NimBLEAdvertisementData::setURI`: Adds URI data to the advertisement.
- `NimBLEAdvertising` New methods:
- `NimBLEAdvertising::setName`: Set the name advertised.
- `NimBLEAdvertising::setManufacturerData`: Adds manufacturer data to the advertisement.
- `NimBLEAdvertising::setURI`: Adds URI data to the advertisement.
- `NimBLEAdvertising::setServiceData`: Adds service data to the advertisement.
- `NimBLEAdvertising::addTxPower`: Adds transmission power to the advertisement.
- `NimBLEAdvertising::reset`: Stops the current advertising and resets the advertising data to the default values.
- `NimBLEDevice::setScanFilterMode`: Set the controller duplicate filter mode for filtering scanned devices.
- `NimBLEDevice::setScanDuplicateCacheSize`: Sets the number of advertisements filtered before the cache is reset.
- `NimBLEScan::setMaxResults`: This allows for setting a maximum number of advertised devices stored in the results vector.
- `NimBLEAdvertisedDevice` New data retrieval methods added:
- `haveAdvInterval/getAdvInterval`: checks if the interval is advertised / gets the advertisement interval value.
- `haveConnParams/getMinInterval/getMaxInterval`: checks if the parameters are advertised / get min value / get max value.
- `haveURI/getURI`: checks if a URI is advertised / gets the URI data.
- `haveTargetAddress/getTargetAddressCount/getTargetAddress(index)`: checks if a target address is present / gets a count of the addresses targeted / gets the address of the target at index.
### Changed
- `nimconfig.h` (Arduino) is now easier to use.
- `NimBLEServer::getServiceByUUID` Now takes an extra parameter of instanceID to support multiple services with the same UUID.
- `NimBLEService::getCharacteristic` Now takes an extra parameter of instanceID to support multiple characteristics with the same UUID.
- `NimBLEAdvertising` Transmission power is no longer advertised by default and can be added to the advertisement by calling `NimBLEAdvertising::addTxPower`
- `NimBLEAdvertising` Custom scan response data can now be used without custom advertisement.
- `NimBLEScan` Now uses the controller duplicate filter.
- `NimBLEAdvertisedDevice` Has been refactored to store the complete advertisement payload and no longer parses the data from each advertisement.
Instead the data will be parsed on-demand when the user application asks for specific data.
### Fixed
- `NimBLEHIDDevice` Characteristics now use encryption, this resolves an issue with communicating with devices requiring encryption for HID devices.
## [1.1.0] - 2021-01-20
### Added
- `NimBLEDevice::setOwnAddrType` added to enable the use of random and random-resolvable addresses, by asukiaaa
- New examples for securing and authenticating client/server connections, by mblasee.
- `NimBLEAdvertising::SetMinPreferred` and `NimBLEAdvertising::SetMinPreferred` re-added.
- Conditional checks added for command line config options in `nimconfig.h` to support custom configuration in platformio.
- `NimBLEClient::setValue` Now takes an extra bool parameter `response` to enable the use of write with response (default = false).
- `NimBLEClient::getCharacteristic(uint16_t handle)` Enabling the use of the characteristic handle to be used to find
the NimBLERemoteCharacteristic object.
- `NimBLEHIDDevice` class added by wakwak-koba.
- `NimBLEServerCallbacks::onDisconnect` overloaded callback added to provide a ble_gap_conn_desc parameter for the application
to obtain information about the disconnected client.
- Conditional checks in `nimconfig.h` for command line defined macros to support platformio config settings.
### Changed
- `NimBLEAdvertising::start` now returns a bool value to indicate success/failure.
- Some asserts were removed in `NimBLEAdvertising::start` and replaced with better return code handling and logging.
- If a host reset event occurs, scanning and advertising will now only be restarted if their previous duration was indefinite.
- `NimBLERemoteCharacteristic::subscribe` and `NimBLERemoteCharacteristic::registerForNotify` will now set the callback
regardless of the existence of the CCCD and return true unless the descriptor write operation failed.
- Advertising tx power level is now sent in the advertisement packet instead of scan response.
- `NimBLEScan` When the scan ends the scan stopped flag is now set before calling the scan complete callback (if used)
this allows the starting of a new scan from the callback function.
### Fixed
- Sometimes `NimBLEClient::connect` would hang on the task block if no event arrived to unblock.
A time limit has been added to timeout appropriately.
- When getting descriptors for a characteristic the end handle of the service was used as a proxy for the characteristic end
handle. This would be rejected by some devices and has been changed to use the next characteristic handle as the end when possible.
- An exception could occur when deleting a client instance if a notification arrived while the attribute vectors were being
deleted. A flag has been added to prevent this.
- An exception could occur after a host reset event when the host re-synced if the tasks that were stopped during the event did
not finish processing. A yield has been added after re-syncing to allow tasks to finish before proceeding.
- Occasionally the controller would fail to send a disconnected event causing the client to indicate it is connected
and would be unable to reconnect. A timer has been added to reset the host/controller if it expires.
- Occasionally the call to start scanning would get stuck in a loop on BLE_HS_EBUSY, this loop has been removed.
- 16bit and 32bit UUID's in some cases were not discovered or compared correctly if the device
advertised them as 16/32bit but resolved them to 128bits. Both are now checked.
- `FreeRTOS` compile errors resolved in latest Arduino core and IDF v3.3.
- Multiple instances of `time()` called inside critical sections caused sporadic crashes, these have been moved out of critical regions.
- Advertisement type now correctly set when using non-connectable (advertiser only) mode.
- Advertising payload length correction, now accounts for appearance.
- (Arduino) Ensure controller mode is set to BLE Only.
## [1.0.2] - 2020-09-13
### Changed
- `NimBLEAdvertising::start` Now takes 2 optional parameters, the first is the duration to advertise for (in seconds), the second is a
callback that is invoked when advertising ends and takes a pointer to a `NimBLEAdvertising` object (similar to the `NimBLEScan::start` API).
- (Arduino) Maximum BLE connections can now be altered by only changing the value of `CONFIG_BT_NIMBLE_MAX_CONNECTIONS` in `nimconfig.h`.
Any changes to the controller max connection settings in `sdkconfig.h` will now have no effect when using this library.
- (Arduino) Revert the previous change to fix the advertising start delay. Instead a replacement fix that routes all BLE controller commands from
a task running on core 0 (same as the controller) has been implemented. This improves response times and reliability for all BLE functions.
## [1.0.1] - 2020-09-02
### Added
- Empty `NimBLEAddress` constructor: `NimBLEAddress()` produces an address of 00:00:00:00:00:00 type 0.
- Documentation of the difference of NimBLEAddress::getNative vs the original bluedroid library.
### Changed
- notify_callback typedef is now defined as std::function to enable the use of std::bind to call a class member function.
### Fixed
- Fix advertising start delay when first called.
## [1.0.0] - 2020-08-22
First stable release.
All the original library functionality is complete and many extras added with full documentation.

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[Latest release ![Release Version](https://img.shields.io/github/release/h2zero/NimBLE-Arduino.svg?style=plastic)
![Release Date](https://img.shields.io/github/release-date/h2zero/NimBLE-Arduino.svg?style=plastic)](https://github.com/h2zero/NimBLE-Arduino/releases/latest/)
Need help? Have questions or suggestions? Join the [![Gitter](https://badges.gitter.im/NimBLE-Arduino/community.svg)](https://gitter.im/NimBLE-Arduino/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
<br/>
# NimBLE-Arduino
A fork of the NimBLE stack refactored for compilation in the Ardruino IDE.
**As of release 1.4.0 Nordic Semiconductor nRF51 and nRF52 series devices are now supported**
## Supported MCU's
- Espressif: ESP32, ESP32C3, ESP32S3
- Nordic: nRF51, nRF52 series (**Requires** using [n-able arduino core](https://github.com/h2zero/n-able-Arduino))
**Note for ESP-IDF users: This repo will not compile correctly in ESP-IDF. An ESP-IDF component version of this library can be [found here.](https://github.com/h2zero/esp-nimble-cpp)**
This library **significantly** reduces resource usage and improves performance for ESP32 BLE applications as compared with the bluedroid based library. The goal is to maintain, as much as reasonable, compatibility with the original library but refactored to use the NimBLE stack. In addition, this library will be more actively developed and maintained to provide improved capabilities and stability over the original.
<br/>
For Nordic devices, this library provides access to a completely open source and configurable BLE stack. No softdevice to work around, allowing for full debugging and resource management, continuous updates, with a cross platform API.
# Arduino installation
**Arduino Library manager:** Go to `sketch` -> `Include Library` -> `Manage Libraries`, search for NimBLE and install.
**Alternatively:** Download as .zip and extract to Arduino/libraries folder, or in Arduino IDE from Sketch menu -> Include library -> Add .Zip library.
`#include "NimBLEDevice.h"` at the beginning of your sketch.
# Platformio installation
* Open platformio.ini, a project configuration file located in the root of PlatformIO project.
* Add the following line to the lib_deps option of [env:] section:
```
h2zero/NimBLE-Arduino@^1.4.0
```
* Build a project, PlatformIO will automatically install dependencies.
# Using
This library is intended to be compatible with the original ESP32 BLE functions and types with minor changes.
If you have not used the original Bluedroid library please refer to the [New user guide](docs/New_user_guide.md).
If you are familiar with the original library, see: [The migration guide](docs/Migration_guide.md) for details about breaking changes and migration.
Also see [Improvements_and_updates](docs/Improvements_and_updates.md) for information about non-breaking changes.
[Full API documentation and class list can be found here.](https://h2zero.github.io/NimBLE-Arduino/)
For added performance and optimizations see [Usage tips](docs/Usage_tips.md).
Check the Refactored_original_examples in the examples folder for highlights of the differences with the original library.
More advanced examples highlighting many available features are in examples/ NimBLE_Server, NimBLE_Client.
Beacon examples provided by @beegee-tokyo are in examples/ BLE_Beacon_Scanner, BLE_EddystoneTLM_Beacon, BLE_EddystoneURL_Beacon.
Change the settings in the `src/nimconfig.h` file to customize NimBLE to your project,
such as increasing max connections, default is 3, absolute maximum connections is 9.
<br/>
# Development Status
This Library is tracking the esp-nimble repo, nimble-1.4.0-idf branch, currently [@3df0d20.](https://github.com/espressif/esp-nimble)
Also tracking the NimBLE related changes in ESP-IDF, master branch, currently [@95db4bb.](https://github.com/espressif/esp-idf/tree/master/components/bt/host/nimble)
<br/>
# Acknowledgments
* [nkolban](https://github.com/nkolban) and [chegewara](https://github.com/chegewara) for the [original esp32 BLE library](https://github.com/nkolban/esp32-snippets/tree/master/cpp_utils) this project was derived from.
* [beegee-tokyo](https://github.com/beegee-tokyo) for contributing your time to test/debug and contributing the beacon examples.
* [Jeroen88](https://github.com/Jeroen88) for the amazing help debugging and improving the client code.
<br/>

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# Bluetooth 5.x features
## About extended advertising
Extended advertising allows for much more capability and flexibility.
* Allows for 251 bytes of advertisement data and up to 1650 bytes when chained (configuration dependant) vs 31.
* New PHY's (physical layers) that allow for faster data rate (2M PHY) or long range/slower data rates (CODED PHY) as well as the original 1M PHY.
* New periodic advertising, allowing the scanning device to sync with the advertisements of a beacon. This allows for the scanning device to sleep or perform other tasks before the next expected advertisement is sent, preserving cpu cycles and power (To be implemented).
<br/>
## Enabling extended advertising
Extended advertising is supported when enabled with the config option `CONFIG_BT_NIMBLE_EXT_ADV` set to a value of 1. This is done in menuconfig under `Component config > Bluetooth > NimBLE options > Enable extended advertising`, or set in `nimconfig.h` for Arduino, or in `build_flags` in PlatformIO.
When enabled the following will occur:
* `NimBLEScan::start` method will scan on both the 1M PHY and the coded PHY standards automatically.
* `NimBLEClient::connect` will use the primary PHY the device is listening on, unless specified (see below).
* `NimBLEClient::setConnectPhy` becomes available to specify the PHY's to connect with (default is all).
* `NimBLEAdvertising` is no longer available for use and is replaced by `NimBLEExtAdvertising`. `NimBLEDevice::getAdvertising` will now return an instance of `NimBLEExtAdvertising`.
* `NimBLEAdvertisementData` is no longer available for use and is replaced by `NimBLEExtAdvertisement`. This new class is where everything about the advertisement is configured, including the advertisement intervals and advertisement ended callback.

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# Arduino command line and platformio config options
`CONFIG_BT_NIMBLE_MAX_CONNECTIONS`
Sets the number of simultaneous connections (esp controller max is 9)
- Default value is 3
<br/>
`CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED`
Enable/disable storing the timestamp when an attribute value is updated
This allows for checking the last update time using getTimeStamp() or getValue(time_t*)
If disabled, the timestamp returned from these functions will be 0.
Disabling timestamps will reduce the memory used for each value.
1 = Enabled, 0 = Disabled; Default = Disabled
<br/>
`CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH`
Set the default allocation size (bytes) for each attribute.
If not specified when the constructor is called. This is also the size used when a remote
characteristic or descriptor is constructed before a value is read/notifed.
Increasing this will reduce reallocations but increase memory footprint.
Default value is 20. Range: 1 : 512 (BLE_ATT_ATTR_MAX_LEN)
<br/>
`CONFIG_BT_NIMBLE_ATT_PREFERRED_MTU`
Sets the default MTU size.
- Default value is 255
<br/>
`CONFIG_BT_NIMBLE_SVC_GAP_DEVICE_NAME`
Set the default device name
- Default value is "nimble"
<br/>
`CONFIG_BT_NIMBLE_DEBUG`
If defined, enables debug log messages from the NimBLE host
- Uses approx. 32kB of flash memory.
<br/>
`CONFIG_NIMBLE_CPP_LOG_LEVEL`
Define to set the debug log message level from the NimBLE CPP Wrapper.
If not defined it will use the same value as the Arduino core debug level.
Values: 0 = NONE, 1 = ERROR, 2 = WARNING, 3 = INFO, 4+ = DEBUG
<br/>
`CONFIG_NIMBLE_CPP_ENABLE_RETURN_CODE_TEXT`
If defined, NimBLE host return codes will be printed as text in debug log messages.
- Uses approx. 7kB of flash memory.
<br/>
`CONFIG_NIMBLE_CPP_ENABLE_GAP_EVENT_CODE_TEXT`
If defined, GAP event codes will be printed as text in debug log messages.
- Uses approx. 1kB of flash memory.
<br/>
`CONFIG_NIMBLE_CPP_ENABLE_ADVERTISMENT_TYPE_TEXT`
If defined, advertisment types will be printed as text while scanning in debug log messages.
- Uses approx. 250 bytes of flash memory.
<br/>
`CONFIG_BT_NIMBLE_SVC_GAP_APPEARANCE`
Set the default appearance.
- Default value is 0x00
<br/>
`CONFIG_BT_NIMBLE_ROLE_CENTRAL_DISABLED`
If defined, NimBLE Client functions will not be included.
- Reduces flash size by approx. 7kB.
<br/>
`CONFIG_BT_NIMBLE_ROLE_OBSERVER_DISABLED`
If defined, NimBLE Scan functions will not be included.
- Reduces flash size by approx. 26kB.
<br/>
`CONFIG_BT_NIMBLE_ROLE_PERIPHERAL_DISABLED`
If defined NimBLE Server functions will not be included.
- Reduces flash size by approx. 16kB.
<br/>
`CONFIG_BT_NIMBLE_ROLE_BROADCASTER_DISABLED`
If defined, NimBLE Advertising functions will not be included.
- Reduces flash size by approx. 5kB.
<br/>
`CONFIG_BT_NIMBLE_MAX_BONDS`
Sets the number of devices allowed to store/bond with
- Default value is 3
<br/>
`CONFIG_BT_NIMBLE_MAX_CCCDS`
Sets the maximum number of CCCD subscriptions to store
- Default value is 8
<br/>
`CONFIG_BT_NIMBLE_RPA_TIMEOUT`
Sets the random address refresh time in seconds.
- Default value is 900
<br/>
`CONFIG_BT_NIMBLE_MSYS1_BLOCK_COUNT`
Set the number of msys blocks For prepare write & prepare responses. This may need to be increased if
you are sending large blocks of data with a low MTU. E.g: 512 bytes with 23 MTU will fail.
- Default value is 12
<br/>
`CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL`
Sets the NimBLE stack to use external PSRAM will be loaded
- Must be defined with a value of 1; Default is CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL 1
<br/>
`CONFIG_BT_NIMBLE_PINNED_TO_CORE`
Sets the core the NimBLE host stack will run on
- Options: 0 or 1
<br/>
`CONFIG_BT_NIMBLE_TASK_STACK_SIZE`
Set the task stack size for the NimBLE core.
- Default is 4096
<br/>
`CONFIG_NIMBLE_STACK_USE_MEM_POOLS`
Enable the use of memory pools for stack operations. This will use slightly more RAM but may provide more stability.
- Options: 0 or 1, default is disabled (0)
<br/>
### Extended advertising settings, For use with ESP32C3, ESP32S3, ESP32H2 ONLY!
`CONFIG_BT_NIMBLE_EXT_ADV`
Set to 1 to enable extended advertising features.
<br/>
`CONFIG_BT_NIMBLE_MAX_EXT_ADV_INSTANCES`
Sets the max number of extended advertising instances
- Range: 0 - 4
- Default is 1
<br/>
`CONFIG_BT_NIMBLE_MAX_EXT_ADV_DATA_LEN`
Set the max extended advertising data size,
- Range: 31 - 1650
- Default is 255
<br/>
`CONFIG_BT_NIMBLE_ENABLE_PERIODIC_ADV`
Set to 1 to enable periodic advertising.
<br/>
`CONFIG_BT_NIMBLE_MAX_PERIODIC_SYNCS`
Set the maximum number of periodically synced devices.
- Range: 1 - 8
- Default is 1

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# Improvements and updates
Many improvements have been made to this library vs the original, this is a brief overview of the most significant changes. Refer to the [class documentation](https://h2zero.github.io/esp-nimble-cpp/annotated.html) for further information on class specifics.
* [Server](#server)
* [Advertising](#advertising)
* [Client](#client)
* [General](#general)
<br/>
<a name="server"></a>
# Server
`NimBLEService::NimBLEService::createCharacteristic` takes a 3rd parameter to specify the maximum data size that can be stored by the characteristic. This allows for limiting the RAM use of the characteristic in cases where small amounts of data are expected.
<br/>
`NimBLECharacteristic::setValue(const T &s)`
`NimBLEDescriptor::setValue(const T &s)`
Now use the `NimbleAttValue` class and templates to accommodate standard and custom types/values.
**Example**
```
struct my_struct {
uint8_t one;
uint16_t two;
uint32_t four;
uint64_t eight;
float flt;
} myStruct;
myStruct.one = 1;
myStruct.two = 2;
myStruct.four = 4;
myStruct.eight = 8;
myStruct.flt = 1234.56;
pCharacteristic->setValue(myStruct);
// Arduino String support
String myString = "Hello";
pCharacteristic->setValue(myString);
```
This will send the struct to the receiving client when read or a notification sent.
`NimBLECharacteristic::getValue` now takes an optional timestamp parameter which will update it's value with the time the last value was received. In addition an overloaded template has been added to retrieve the value as a type specified by the user.
**Example**
```
time_t timestamp;
myStruct = pCharacteristic->getValue<myStruct>(&timestamp); // timestamp optional
```
<br/>
**Advertising will automatically start when a client disconnects.**
A new method `NimBLEServer::advertiseOnDisconnect(bool)` has been implemented to control this, true(default) = enabled.
<br/>
`NimBLEServer::removeService` takes an additional parameter `bool deleteSvc` that if true will delete the service and all characteristics / descriptors belonging to it and invalidating any pointers to them.
If false the service is only removed from visibility by clients. The pointers to the service and it's characteristics / descriptors will remain valid and the service can be re-added in the future using `NimBLEServer::addService`.
<br/>
<a name="advertising"></a>
# Advertising
`NimBLEAdvertising::start`
Now takes 2 optional parameters, the first is the duration to advertise for (in seconds), the second is a callback that is invoked when advertising ends and takes a pointer to a `NimBLEAdvertising` object (similar to the `NimBLEScan::start` API).
This provides an opportunity to update the advertisement data if desired.
Also now returns a bool value to indicate if advertising successfully started or not.
<br/>
<a name="client"></a>
# Client
`NimBLERemoteCharacteristic::readValue(time_t\*, bool)`
`NimBLERemoteDescriptor::readValue(bool)`
Have been added as templates to allow reading the values as any specified type.
**Example**
```
struct my_struct{
uint8_t one;
uint16_t two;
uint32_t four;
uint64_t eight;
float flt;
}myStruct;
time_t timestamp;
myStruct = pRemoteCharacteristic->readValue<myStruct>(&timestamp); // timestamp optional
```
<br/>
`NimBLERemoteCharacteristic::registerForNotify`
Has been **deprecated** as now the internally stored characteristic value is updated when notification/indication is received.
`NimBLERemoteCharacteristic::subscribe` and `NimBLERemoteCharacteristic::unsubscribe` have been implemented to replace it.
A callback is no longer required to get the most recent value unless timing is important. Instead, the application can call `NimBLERemoteCharacteristic::getValue` to get the last updated value any time.
<br/>
The `notify_callback` function is now defined as a `std::function` to take advantage of using `std::bind` to specify a class member function for the callback.
Example:
```
using namespace std::placeholders;
notify_callback callback = std::bind(&<ClassName>::<memberFunctionCallbackName>, this, _1, _2, _3, _4);
<remoteCharacteristicInstance>->subscribe(true, callback);
```
`NimBLERemoteCharacteristic::readValue` and `NimBLERemoteCharacteristic::getValue` take an optional timestamp parameter which will update it's value with
the time the last value was received.
> NimBLEClient::getService
> NimBLERemoteService::getCharacteristic
> NimBLERemoteCharacteristic::getDescriptor
These methods will now check the respective vectors for the attribute object and, if not found, will retrieve (only)
the specified attribute from the peripheral.
These changes allow more control for the user to manage the resources used for the attributes.
<br/>
`NimBLEClient::connect()` can now be called without an address or advertised device parameter. This will connect to the device with the address previously set when last connected or set with `NimBLEDevice::setPeerAddress()`.
<a name="general"></a>
# General
To reduce resource use all instances of `std::map` have been replaced with `std::vector`.
Use of `FreeRTOS::Semaphore` has been removed as it was consuming too much ram, the related files have been left in place to accomodate application use.
Operators `==`, `!=` and `std::string` have been added to `NimBLEAddress` and `NimBLEUUID` for easier comparison and logging.
New constructor for `NimBLEUUID(uint32_t, uint16_t, uint16_t, uint64_t)` added to lower memory use vs string construction. See: [#21](https://github.com/h2zero/NimBLE-Arduino/pull/21).
Security/pairing operations are now handled in the respective `NimBLEClientCallbacks` and `NimBLEServerCallbacks` classes, `NimBLESecurity`(deprecated) remains for backward compatibility.
Configuration options have been added to add or remove debugging information, when disabled (default) significantly reduces binary size.
In ESP-IDF the options are in menuconfig: `Main menu -> ESP-NimBLE-cpp configuration`.
For Arduino the options must be commented / uncommented in nimconfig.h.
Characteristics and descriptors now use the `NimBLEAttValue` class to store their data. This is a polymorphic container class capable of converting to/from many different types efficiently. See: [#286](https://github.com/h2zero/NimBLE-Arduino/pull/286)

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# Migrating from Bluedroid to NimBLE
This guide describes the required changes to existing projects migrating from the original bluedroid API to NimBLE.
**The changes listed here are only the required changes that must be made**, and a short overview of options for migrating existing applications.
For more information on the improvements and additions please refer to the [class documentation](https://h2zero.github.io/NimBLE-Arduino/annotated.html) and [Improvements and updates](Improvements_and_updates.md)
* [General Changes](#general-information)
* [Server](#server-api)
* [Services](#services)
* [characteristics](#characteristics)
* [descriptors](#descriptors)
* [Security](#server-security)
* [Advertising](#advertising-api)
* [Client](#client-api)
* [Remote Services](#remote-services)
* [Remote characteristics](#remote-characteristics)
* [Security](#client-security)
* [General Security](#security-api)
* [Configuration](#arduino-configuration)
<br/>
<a name="general-information"></a>
## General Information
### Header Files
All classes are accessible by including `NimBLEDevice.h` in your application, no further headers need to be included.
(Mainly for Arduino) You may choose to include `NimBLELog.h` in your application if you want to use the `NIMBLE_LOGx` macros for debugging. These macros are used the same way as the `ESP_LOGx` macros.
<br/>
### Class Names
Class names remain the same as the original with the addition of a "Nim" prefix.
For example `BLEDevice` is now `NimBLEDevice` and `BLEServer` is now `NimBLEServer` etc.
For convenience definitions have been added to allow applications to use either name for all classes this means **no class names need to be changed in existing code** and makes migrating easier.
<br/>
### BLE Addresses
`BLEAddress` (`NimBLEAddress`) When constructing an address the constructor now takes an *(optional)* `uint8_t type` parameter to specify the address type. Default is (0) Public static address.
For example `BLEAddress addr(11:22:33:44:55:66, 1)` will create the address object with an address type of: 1 (Random).
As this parameter is optional no changes to existing code are needed, it is mentioned here for information.
`BLEAddress::getNative` (`NimBLEAddress::getNative`) returns a uint8_t pointer to the native address byte array. In this library the address bytes are stored in reverse order from the original library. This is due to the way the NimBLE stack expects addresses to be presented to it. All other functions such as `toString` are
not affected as the endian change is made within them.
<br/>
<a name="server-api"></a>
## Server API
Creating a `BLEServer` instance is the same as original, no changes required.
For example `BLEDevice::createServer()` will work just as it did before.
`BLEServerCallbacks` (`NimBLEServerCallbacks`) has new methods for handling security operations.
**Note:** All callback methods have default implementations which allows the application to implement only the methods applicable.
<br/>
<a name="services"></a>
### Services
Creating a `BLEService` (`NimBLEService`) instance is the same as original, no changes required.
For example `BLEServer::createService(SERVICE_UUID)` will work just as it did before.
<a name="characteristics"></a>
### Characteristics
`BLEService::createCharacteristic` (`NimBLEService::createCharacteristic`) is used the same way as originally except the properties parameter has changed.
When creating a characteristic the properties are now set with `NIMBLE_PROPERTY::XXXX` instead of `BLECharacteristic::XXXX`.
#### Originally
> BLECharacteristic::PROPERTY_READ |
> BLECharacteristic::PROPERTY_WRITE
#### Is Now
> NIMBLE_PROPERTY::READ |
> NIMBLE_PROPERTY::WRITE
<br/>
#### The full list of properties
> NIMBLE_PROPERTY::READ
> NIMBLE_PROPERTY::READ_ENC
> NIMBLE_PROPERTY::READ_AUTHEN
> NIMBLE_PROPERTY::READ_AUTHOR
> NIMBLE_PROPERTY::WRITE
> NIMBLE_PROPERTY::WRITE_NR
> NIMBLE_PROPERTY::WRITE_ENC
> NIMBLE_PROPERTY::WRITE_AUTHEN
> NIMBLE_PROPERTY::WRITE_AUTHOR
> NIMBLE_PROPERTY::BROADCAST
> NIMBLE_PROPERTY::NOTIFY
> NIMBLE_PROPERTY::INDICATE
<br/>
**Example:**
```
BLECharacteristic *pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE
);
```
Needs to be changed to:
```
BLECharacteristic *pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE
);
```
<br/>
`BLECharacteristicCallbacks` (`NimBLECharacteristicCallbacks`) has a new method `NimBLECharacteristicCallbacks::onSubscribe` which is called when a client subscribes to notifications/indications.
**Note:** All callback methods have default implementations which allows the application to implement only the methods applicable.
<br/>
> BLECharacteristic::getData
**Has been removed from the API.**
Originally this returned a `uint8_t*` to the internal data, which is volatile.
To prevent possibly throwing exceptions this has been removed and `NimBLECharacteristic::getValue` should be used
to get a copy of the data first which can then safely be accessed via pointer.
**Example:**
```
std::string value = pCharacteristic->getValue();
uint8_t *pData = (uint8_t*)value.data();
```
Alternatively use the `getValue` template:
```
my_struct_t myStruct = pChr->getValue<my_struct_t>();
```
<br/>
<a name="descriptors"></a>
### Descriptors
Descriptors are now created using the `NimBLECharacteristic::createDescriptor` method.
BLE2902 or NimBLE2902 class has been removed.
NimBLE automatically creates the 0x2902 descriptor if a characteristic has a notification or indication property assigned to it.
It was no longer useful to have a class for the 0x2902 descriptor as a new callback `NimBLECharacteristicCallbacks::onSubscribe` was added
to handle callback functionality and the client subscription status is handled internally.
**Note:** Attempting to create a 0x2902 descriptor will trigger an assert to notify the error,
allowing the creation of it would cause a fault in the NimBLE stack.
All other descriptors are now created just as characteristics are by using the `NimBLECharacteristic::createDescriptor` method (except 0x2904, see below).
Which are defined as:
```
NimBLEDescriptor* createDescriptor(const char* uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = 100);
NimBLEDescriptor* createDescriptor(NimBLEUUID uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = 100);
```
##### Example
```
pDescriptor = pCharacteristic->createDescriptor("ABCD",
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::WRITE_ENC,
25);
```
Would create a descriptor with the UUID 0xABCD, publicly readable but only writable if paired/bonded (encrypted) and has a max value length of 25 bytes.
<br/>
For the 0x2904, there is a special class that is created when you call `createDescriptor("2904").
The pointer returned is of the base class `NimBLEDescriptor` but the call will create the derived class of `NimBLE2904` so you must cast the returned pointer to
`NimBLE2904` to access the specific class methods.
##### Example
```
p2904 = (NimBLE2904*)pCharacteristic->createDescriptor("2904");
```
<br/>
<a name="server-security"></a>
### Server Security
Security is set on the characteristic or descriptor properties by applying one of the following:
> NIMBLE_PROPERTY::READ_ENC
> NIMBLE_PROPERTY::READ_AUTHEN
> NIMBLE_PROPERTY::READ_AUTHOR
> NIMBLE_PROPERTY::WRITE_ENC
> NIMBLE_PROPERTY::WRITE_AUTHEN
> NIMBLE_PROPERTY::WRITE_AUTHOR
<br/>
When a peer wants to read or write a characteristic or descriptor with any of these properties applied it will trigger the pairing process. By default the "just-works" pairing will be performed automatically.
This can be changed to use passkey authentication or numeric comparison. See [Security API](#security-api) for details.
<br/>
<a name="advertising-api"></a>
## Advertising API
Advertising works the same as the original API except:
Calling `NimBLEAdvertising::setAdvertisementData` will entirely replace any data set with `NimBLEAdvertising::addServiceUUID`, or
`NimBLEAdvertising::setAppearance` or similar methods. You should set all the data you wish to advertise within the `NimBLEAdvertisementData` instead.
<br/>
> BLEAdvertising::start (NimBLEAdvertising::start)
Now takes 2 optional parameters, the first is the duration to advertise for (in seconds), the second is a callback that is invoked when advertising ends and takes a pointer to a `NimBLEAdvertising` object (similar to the `NimBLEScan::start` API).
This provides an opportunity to update the advertisement data if desired.
<br/>
<a name="client-api"></a>
## Client API
Client instances are created just as before with `BLEDevice::createClient` (`NimBLEDevice::createClient`).
Multiple client instances can be created, up to the maximum number of connections set in the config file (default: 3). To delete a client instance you must use `NimBLEDevice::deleteClient`.
`BLEClient::connect`(`NimBLEClient::connect`) Has had it's parameters altered.
Defined as:
> NimBLEClient::connect(bool deleteServices = true);
> NimBLEClient::connect(NimBLEAdvertisedDevice\* device, bool deleteServices = true);
> NimBLEClient::connect(NimBLEAddress address, bool deleteServices = true);
The type parameter has been removed and a new bool parameter has been added to indicate if the client should delete the attribute database previously retrieved (if applicable) for the peripheral, default value is true.
If set to false the client will use the attribute database it retrieved from the peripheral when previously connected.
This allows for faster connections and power saving if the devices dropped connection and are reconnecting.
<br/>
> `BLEClient::getServices` (`NimBLEClient::getServices`)
This method now takes an optional (bool) parameter to indicate if the services should be retrieved from the server (true) or the currently known database returned (false : default).
Also now returns a pointer to `std::vector` instead of `std::map`.
<br/>
**Removed:** the automatic discovery of all peripheral attributes as they consumed time and resources for data the user may not be interested in.
**Added:** `NimBLEClient::discoverAttributes` for the user to discover all the peripheral attributes to replace the the removed automatic functionality.
<br/>
<a name="remote-services"></a>
### Remote Services
`BLERemoteService` (`NimBLERemoteService`) Methods remain mostly unchanged with the exceptions of:
> BLERemoteService::getCharacteristicsByHandle
This method has been removed.
<br/>
> `BLERemoteService::getCharacteristics` (`NimBLERemoteService::getCharacteristics`)
This method now takes an optional (bool) parameter to indicate if the characteristics should be retrieved from the server (true) or
the currently known database returned (false : default).
Also now returns a pointer to `std::vector` instead of `std::map`.
<br/>
<a name="remote-characteristics"></a>
### Remote Characteristics
`BLERemoteCharacteristic` (`NimBLERemoteCharacteristic`)
There have been a few changes to the methods in this class:
> `BLERemoteCharacteristic::writeValue` (`NimBLERemoteCharacteristic::writeValue`)
> `BLERemoteCharacteristic::registerForNotify` (`NimBLERemoteCharacteristic::registerForNotify`)
Now return true or false to indicate success or failure so you can choose to disconnect or try again.
<br/>
> `BLERemoteCharacteristic::registerForNotify` (`NimBLERemoteCharacteristic::registerForNotify`)
Is now **deprecated**.
> `NimBLERemoteCharacteristic::subscribe`
> `NimBLERemoteCharacteristic::unsubscribe`
Are the new methods added to replace it.
<br/>
> `BLERemoteCharacteristic::readUInt8` (`NimBLERemoteCharacteristic::readUInt8`)
> `BLERemoteCharacteristic::readUInt16` (`NimBLERemoteCharacteristic::readUInt16`)
> `BLERemoteCharacteristic::readUInt32` (`NimBLERemoteCharacteristic::readUInt32`)
> `BLERemoteCharacteristic::readFloat` (`NimBLERemoteCharacteristic::readFloat`)
Are **deprecated** a template: `NimBLERemoteCharacteristic::readValue<type\>(time_t\*, bool)` has been added to replace them.
<br/>
> `BLERemoteCharacteristic::readRawData`
**Has been removed from the API**
Originally it stored an unnecessary copy of the data and was returning a `uint8_t` pointer to volatile internal data.
The user application should use `NimBLERemoteCharacteristic::readValue` or `NimBLERemoteCharacteristic::getValue`.
To obtain a copy of the data, then cast the returned std::string to the type required such as:
```
std::string value = pChr->readValue();
uint8_t *data = (uint8_t*)value.data();
```
Alternatively use the `readValue` template:
```
my_struct_t myStruct = pChr->readValue<my_struct_t>();
```
<br/>
> `BLERemoteCharacteristic::getDescriptors` (`NimBLERemoteCharacteristic::getDescriptors`)
This method now takes an optional (bool) parameter to indicate if the descriptors should be retrieved from the server (true) or
the currently known database returned (false : default).
Also now returns a pointer to `std::vector` instead of `std::map`.
<br/>
<a name="client-security"></a>
### Client Security
The client will automatically initiate security when the peripheral responds that it's required.
The default configuration will use "just-works" pairing with no bonding, if you wish to enable bonding see below.
<br/>
<a name="security-api"></a>
## Security API
Security operations have been moved to `BLEDevice` (`NimBLEDevice`).
Also security callback methods are now incorporated in the `NimBLEServerCallbacks` / `NimBLEClientCallbacks` classes.
However backward compatibility with the original `BLESecurity` (`NimBLESecurity`) class is retained to minimize application code changes.
The callback methods are:
> `bool onConfirmPIN(uint32_t pin)`
Receives the pin when using numeric comparison authentication, `return true;` to accept.
<br/>
> `uint32_t onPassKeyRequest()`
For server callback; return the passkey expected from the client.
For client callback; return the passkey to send to the server.
<br/>
> `void onAuthenticationComplete(ble_gap_conn_desc\* desc)`
Authentication complete, success or failed information is in `desc`.
<br/>
Security settings and IO capabilities are now set by the following methods of NimBLEDevice.
> `NimBLEDevice::setSecurityAuth(bool bonding, bool mitm, bool sc)`
> `NimBLEDevice::setSecurityAuth(uint8_t auth_req)`
Sets the authorization mode for this device.
<br/>
> `NimBLEDevice::setSecurityIOCap(uint8_t iocap)`
Sets the Input/Output capabilities of this device.
<br/>
> `NimBLEDevice::setSecurityInitKey(uint8_t init_key)`
If we are the initiator of the security procedure this sets the keys we will distribute.
<br/>
> `NimBLEDevice::setSecurityRespKey(uint8_t resp_key)`
Sets the keys we are willing to accept from the peer during pairing.
<br/>
<a name="arduino-configuration"></a>
## Arduino Configuration
Unlike the original library pre-packaged in the esp32-arduino, this library has all the configuration options that are normally set in menuconfig available in the *src/nimconfig.h* file.
This allows Arduino users to fully customize the build, such as increasing max connections or loading the BLE stack into external PSRAM.
For details on the options, they are fully commented in *nimconfig.h*
<br/>

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# New User Guide
**Note:** If you are migrating an existing project from the original Bluedroid library please see the [Migration Guide.](Migration_guide.md)
If you are a new user this will guide you through a simple server and client application.
* [Creating a Server](#creating-a-server)
* [Creating a Client](#creating-a-client)
<br/>
## Include Files
At the top of your application file add `#include NimBLEDevice.h`, this is the only header required and provides access to all classes.
<br/>
## Using the Library
In order to perform any BLE tasks you must first initialize the library, this prepares the NimBLE stack to be ready for commands.
To do this you must call `NimBLEDevice::init("your device name here")`, the parameter passed is a character string containing the name you want to advertise.
If you're not creating a server or do not want to advertise a name, simply pass an empty string for the parameter.
This can be called any time you wish to use BLE functions and does not need to be called from app_main(IDF) or setup(Arduino) but usually is.
<br/>
<a name="creating-a-server"></a>
## Creating a Server
BLE servers perform 2 tasks, they advertise their existence for clients to find them and they provide services which contain information for the connecting client.
After initializing the NimBLE stack we create a server by calling `NimBLEDevice::createServer()`, this will create a server instance and return a pointer to it.
Once we have created the server we need to tell it the services it hosts.
To do this we call `NimBLEServer::createService(const char* uuid)`. Which returns a pointer to an instance of `NimBLEService`.
The `uuid` parameter is a hexadecimal string with the uuid we want to give the service, it can be 16, 32, or 128 bits.
For this example we will keep it simple and use a 16 bit value: ABCD.
<br/>
**Example code:**
```
#include "NimBLEDevice.h"
// void setup() in Arduino
void app_main(void)
{
NimBLEDevice::init("NimBLE");
NimBLEServer *pServer = NimBLEDevice::createServer();
NimBLEService *pService = pServer->createService("ABCD");
}
```
Now we have NimBLE initialized, a server created and a service assigned to it.
We can't do much with this yet so now we should add a characteristic to the service to provide some data.
Next we call `NimBLEService::createCharacteristic` which returns a pointer to an instance of `NimBLECharacteristic`, and takes two parameters:
A `uuid` to specify the UUID of the characteristic and a bitmask of the properties we want applied to it.
Just as with the service UUID we will use a simple 16 bit value: 1234.
The properties bitmask is a little more involved. It is a combination of NIMBLE_PROPERTY:: values.
Here is the list of options:
> NIMBLE_PROPERTY\::READ
> NIMBLE_PROPERTY\::READ_ENC
> NIMBLE_PROPERTY\::READ_AUTHEN
> NIMBLE_PROPERTY\::READ_AUTHOR
> NIMBLE_PROPERTY\::WRITE
> NIMBLE_PROPERTY\::WRITE_NR
> NIMBLE_PROPERTY\::WRITE_ENC
> NIMBLE_PROPERTY\::WRITE_AUTHEN
> NIMBLE_PROPERTY\::WRITE_AUTHOR
> NIMBLE_PROPERTY\::BROADCAST
> NIMBLE_PROPERTY\::NOTIFY
> NIMBLE_PROPERTY\::INDICATE
For this example we won't need to specify these as the default value is `NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE`
which will allow reading and writing values to the characteristic without encryption or security.
The function call will simply be `pService->createCharacteristic("1234");`
<br/>
**Our example code now is:**
```
#include "NimBLEDevice.h"
// void setup() in Arduino
void app_main(void)
{
NimBLEDevice::init("NimBLE");
NimBLEServer *pServer = NimBLEDevice::createServer();
NimBLEService *pService = pServer->createService("ABCD");
NimBLECharacteristic *pCharacteristic = pService->createCharacteristic("1234");
}
```
All that's left to do now is start the service, give the characteristic a value and start advertising for clients.
Fist we start the service by calling `NimBLEService::start()`.
Next we need to call `NimBLECharacteristic::setValue` to set the characteristic value that the client will read.
There are many different types you can send as parameters for the value but for this example we will use a simple string.
`pCharacteristic->setValue("Hello BLE");`
Next we need to advertise for connections.
To do this we create an instance of `NimBLEAdvertising` add our service to it (optional) and start advertisng.
**The code for this will be:**
```
NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising(); // create advertising instance
pAdvertising->addServiceUUID("ABCD"); // tell advertising the UUID of our service
pAdvertising->start(); // start advertising
```
That's it, this will be enough to create a BLE server with a service and a characteristic and advertise for client connections.
**The full example code:**
```
#include "NimBLEDevice.h"
// void setup() in Arduino
void app_main(void)
{
NimBLEDevice::init("NimBLE");
NimBLEServer *pServer = NimBLEDevice::createServer();
NimBLEService *pService = pServer->createService("ABCD");
NimBLECharacteristic *pCharacteristic = pService->createCharacteristic("1234");
pService->start();
pCharacteristic->setValue("Hello BLE");
NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
pAdvertising->addServiceUUID("ABCD");
pAdvertising->start();
}
```
Now if you scan with your phone using nRFConnect or any other BLE app you should see a device named "NimBLE" with a service of "ABCD".
For more advanced features and options please see the server examples in the examples folder.
<br/>
<a name="creating-a-client"></a>
## Creating a Client
BLE clients perform 2 tasks, they scan for advertising servers and form connections to them to read and write to their characteristics/descriptors.
After initializing the NimBLE stack we create a scan instance by calling `NimBLEDevice::getScan()`, this will create a `NimBLEScan` instance and return a pointer to it.
Once we have created the scan we can start looking for advertising servers.
To do this we call `NimBLEScan::start(duration)`, the duration parameter is a uint32_t that specifies the number of seconds to scan for,
passing 0 will scan forever.
In this example we will scan for 10 seconds. This is a blocking function (a non blocking overload is also available).
This call returns an instance of `NimBLEScanResults` when the scan completes which can be parsed for advertisers we are interested in.
**Example Code:**
```
#include "NimBLEDevice.h"
// void setup() in Arduino
void app_main(void)
{
NimBLEDevice::init("");
NimBLEScan *pScan = NimBLEDevice::getScan();
NimBLEScanResults results = pScan->start(10);
}
```
<br/>
Now that we have scanned we need to check the results for any advertisers we are interested in connecting to.
To do this we iterate through the results and check if any of the devices found are advertising the service we want `ABCD`.
Each result in `NimBLEScanResults` is a `NimBLEAdvertisedDevice` instance that we can access data from.
We will check each device found for the `ABCD` service by calling `NimBLEAdvertisedDevice::isAdvertisingService`.
This takes an instance of `NimBLEUUID` as a parameter so we will need to create one.
**The code for this looks like:**
```
NimBLEUUID serviceUuid("ABCD");
for(int i = 0; i < results.getCount(); i++) {
NimBLEAdvertisedDevice device = results.getDevice(i);
if (device.isAdvertisingService(serviceUuid)) {
// create a client and connect
}
}
```
<br/>
Now that we can scan and parse advertisers we need to be able to create a `NimBLEClient` instance and use it to connect.
To do this we call `NimBLEDevice::createClient` which creates the `NimBLEClient` instance and returns a pointer to it.
After this we call `NimBLEClient::connect` to connect to the advertiser.
This takes a pointer to the `NimBLEAdvertisedDevice` and returns `true` if successful.
**Lets do that now:**
```
NimBLEUUID serviceUuid("ABCD");
for(int i = 0; i < results.getCount(); i++) {
NimBLEAdvertisedDevice device = results.getDevice(i);
if (device.isAdvertisingService(serviceUuid)) {
NimBLEClient *pClient = NimBLEDevice::createClient();
if(pClient->connect(&device)) {
//success
} else {
// failed to connect
}
}
}
```
As shown, the call to `NimBLEClient::connect` should have it's return value tested to make sure it succeeded before proceeding to get data.
<br/>
Next we need to access the servers data by asking it for the service and the characteristic we are interested in, then read the characteristic value.
To do this we call `NimBLEClient::getService`, which takes as a parameter the UUID of the service and returns
a pointer an instance to `NimBLERemoteService` or `nullptr` if the service was not found.
Next we will call `NimBLERemoteService::getCharacteristic` which takes as a parameter the UUID of the service and returns
a pointer to an instance of `NimBLERemoteCharacteristic` or `nullptr` if not found.
Finally we will read the characteristic value with `NimBLERemoteCharacteristic::readValue()`.
**Here is what that looks like:**
```
NimBLEUUID serviceUuid("ABCD");
for(int i = 0; i < results.getCount(); i++) {
NimBLEAdvertisedDevice device = results.getDevice(i);
if (device.isAdvertisingService(serviceUuid)) {
NimBLEClient *pClient = NimBLEDevice::createClient();
if (pClient->connect(&device)) {
NimBLERemoteService *pService = pClient->getService(serviceUuid);
if (pService != nullptr) {
NimBLERemoteCharacteristic *pCharacteristic = pService->getCharacteristic("1234");
if (pCharacteristic != nullptr) {
std::string value = pCharacteristic->readValue();
// print or do whatever you need with the value
}
}
} else {
// failed to connect
}
}
}
```
<br/>
The last thing we should do is clean up once we are done with the connection.
Because multiple clients are supported and can be created we should delete them when finished with them to conserve resources.
This is done by calling `NimBLEDevice::deleteClient`.
**Lets add that now:**
```
NimBLEUUID serviceUuid("ABCD");
for(int i = 0; i < results.getCount(); i++) {
NimBLEAdvertisedDevice device = results.getDevice(i);
if (device.isAdvertisingService(serviceUuid)) {
NimBLEClient *pClient = NimBLEDevice::createClient();
if (pClient->connect(&device)) {
NimBLERemoteService *pService = pClient->getService(serviceUuid);
if (pService != nullptr) {
NimBLERemoteCharacteristic *pCharacteristic = pService->getCharacteristic("1234");
if (pCharacteristic != nullptr) {
std::string value = pCharacteristic->readValue();
// print or do whatever you need with the value
}
}
} else {
// failed to connect
}
NimBLEDevice::deleteClient(pClient);
}
}
```
Note that there is no need to disconnect as that will be done when deleting the client instance.
<br/>
**Here is the full example code:**
```
#include "NimBLEDevice.h"
// void setup() in Arduino
void app_main(void)
{
NimBLEDevice::init("");
NimBLEScan *pScan = NimBLEDevice::getScan();
NimBLEScanResults results = pScan->start(10);
NimBLEUUID serviceUuid("ABCD");
for(int i = 0; i < results.getCount(); i++) {
NimBLEAdvertisedDevice device = results.getDevice(i);
if (device.isAdvertisingService(serviceUuid)) {
NimBLEClient *pClient = NimBLEDevice::createClient();
if (pClient->connect(&device)) {
NimBLERemoteService *pService = pClient->getService(serviceUuid);
if (pService != nullptr) {
NimBLERemoteCharacteristic *pCharacteristic = pService->getCharacteristic("1234");
if (pCharacteristic != nullptr) {
std::string value = pCharacteristic->readValue();
// print or do whatever you need with the value
}
}
} else {
// failed to connect
}
NimBLEDevice::deleteClient(pClient);
}
}
}
```
<br/>
For more advanced features and options please see the client examples in the examples folder.
<br/>

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# Usage Tips
## Put BLE functions in a task running on the NimBLE stack core
When commands are sent to the stack from a different core they can experience delays in execution.
This library detects this and invokes the esp32 IPC to reroute these commands through the correct core but this also increases overhead.
Therefore it is highly recommended to create tasks for BLE to run on the same core, the macro `CONFIG_BT_NIMBLE_PINNED_TO_CORE` can be used to set the core.
<br/>
## Do not delete client instances unless necessary or unused
When a client instance has been created and has connected to a peer device and it has retrieved service/characteristic information it will store that data for the life of the client instance.
If you are periodically connecting to the same devices and you have deleted the client instance or the services when connecting again it will cause a retrieval of that information from the peer again.
This results in significant energy drain on the battery of the devices, fragments heap, and reduces connection performance.
Client instances in this library use approximately 20% of the original bluedroid library, deleting them will provide much less gain than it did before.
It is recommended to retain the client instance in cases where the time between connecting to the same device is less than 5 minutes.
<br/>
## Only retrieve the services and characteristics needed
As a client the use of `NimBLEClient::getServices` or `NimBLERemoteService::getCharacteristics` and using `true` for the parameter should be limited to devices that are not known.
Instead `NimBLEClient::getService(NimBLEUUID)` or `NimBLERemoteService::getCharacteristic(NimBLEUUID)` should be used to access certain attributes that are useful to the application.
This reduces energy consumed, heap allocated, connection time and improves overall efficiency.
<br/>
## Check return values
Many user issues can be avoided by checking if a function returned successfully, by either testing for true/false such as when calling `NimBLEClient::connect`,
or nullptr such as when calling `NimBLEClient::getService`. The latter being a must, as calling a method on a nullptr will surely result in a crash.
Most of the functions in this library return something that should be checked before proceeding.
<br/>
## There will be bugs - please report them
No code is bug free and unit testing will not find them all on it's own. If you encounter a bug, please report it along with any logs and decoded backtrace if applicable.
Best efforts will be made to correct any errors ASAP.
Bug reports can be made at https://github.com/h2zero/NimBLE-Arduino/issues or https://github.com/h2zero/esp-nimble-cpp/issues.
Questions and suggestions will be happily accepted there as well.

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# Overview
This is a C++ BLE library for Espressif ESP32 and Nordic nRF51/nRF52 devices that uses the NimBLE BLE stack.
The aim is to maintain, as much as reasonable, the original ESP32 Arduino BLE API by while adding new features and making improvements in performance, resource use, and stability.
<br/>
# What is NimBLE?
NimBLE is a completely open source Bluetooth Low Energy stack produced by [Apache](https://github.com/apache/mynewt-nimble).
<br/>
# Arduino installation
**NOTE:** Nordic devices require using [n-able arduino core](https://github.com/h2zero/n-able-Arduino)
**Arduino Library manager:** Go to `sketch` -> `Include Library` -> `Manage Libraries` and search for NimBLE and install.
**Alternatively:** Download as .zip and extract to Arduino/libraries folder, or in Arduino IDE from Sketch menu -> Include library -> Add .Zip library.
`#include "NimBLEDevice.h"` at the beginning of your sketch.
Call `NimBLEDevice::init` in `setup`.
<br/>
# Platformio installation
* Open platformio.ini, a project configuration file located in the root of PlatformIO project.
* Add the following line to the lib_deps option of [env:] section:
```
h2zero/NimBLE-Arduino@^1.4.0
```
* Build a project, PlatformIO will automatically install dependencies.
<br/>
# Using
This library is intended to be compatible with the original ESP32 BLE library functions and types with minor changes.
If you have not used the original BLE library please refer to the [New user guide](New_user_guide.md).
If you are familiar with the original library, see: [The migration guide](Migration_guide.md) for details.
Also see [Improvements and updates](Improvements_and_updates.md) for information about non-breaking changes.
For more advanced usage see [Usage tips](Usage_tips.md) for more performance and optimization.
<br/>
## Examples
See the Refactored_original_examples in the examples folder for highlights of the differences with the original library.
More advanced examples highlighting many available features are in examples/NimBLE_Server, NimBLE_Client.
Beacon examples provided by [beegee-tokyo](https://github.com/beegee-tokyo) are in examples/BLE_Beacon_Scanner, BLE_EddystoneTLM_Beacon, BLE_EddystoneURL_Beacon.
Change the settings in the nimconfig.h file to customize NimBLE to your project, such as increasing max connections (default is 3).
<br/>
## Arduino command line and platformio
As an alternative to changing the configuration in nimconfig.h, Arduino command line and platformio.ini options are available.
See the command line configuration options available in [Command line config](Command_line_config.md).
<br/>
# Need help? Have a question or suggestion?
Come chat on [gitter](https://gitter.im/NimBLE-Arduino/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link) or open an issue at [NimBLE-Arduino](https://github.com/h2zero/NimBLE-Arduino/issues) or [esp-nimble-cpp](https://github.com/h2zero/esp-nimble-cpp/issues)
<br/>
# Acknowledgments
* [nkolban](https://github.com/nkolban) and [chegewara](https://github.com/chegewara) for the [original esp32 BLE library](https://github.com/nkolban/esp32-snippets/tree/master/cpp_utils) this project was derived from.
* [beegee-tokyo](https://github.com/beegee-tokyo) for contributing your time to test/debug and contributing the beacon examples.
* [Jeroen88](https://github.com/Jeroen88) for the amazing help debugging and improving the client code.
<br/>

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/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
Ported to Arduino ESP32 by Evandro Copercini
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>
#include "BLEEddystoneURL.h"
#include "BLEEddystoneTLM.h"
#include "BLEBeacon.h"
***********************/
#include <Arduino.h>
#include <NimBLEDevice.h>
#include <NimBLEAdvertisedDevice.h>
#include "NimBLEEddystoneURL.h"
#include "NimBLEEddystoneTLM.h"
#include "NimBLEBeacon.h"
#define ENDIAN_CHANGE_U16(x) ((((x)&0xFF00) >> 8) + (((x)&0xFF) << 8))
int scanTime = 5; //In seconds
BLEScan *pBLEScan;
class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks
{
/*** Only a reference to the advertised device is passed now
void onResult(BLEAdvertisedDevice advertisedDevice) { **/
void onResult(BLEAdvertisedDevice *advertisedDevice)
{
if (advertisedDevice->haveName())
{
Serial.print("Device name: ");
Serial.println(advertisedDevice->getName().c_str());
Serial.println("");
}
if (advertisedDevice->haveServiceUUID())
{
BLEUUID devUUID = advertisedDevice->getServiceUUID();
Serial.print("Found ServiceUUID: ");
Serial.println(devUUID.toString().c_str());
Serial.println("");
}
else
{
if (advertisedDevice->haveManufacturerData() == true)
{
std::string strManufacturerData = advertisedDevice->getManufacturerData();
uint8_t cManufacturerData[100];
strManufacturerData.copy((char *)cManufacturerData, strManufacturerData.length(), 0);
if (strManufacturerData.length() == 25 && cManufacturerData[0] == 0x4C && cManufacturerData[1] == 0x00)
{
Serial.println("Found an iBeacon!");
BLEBeacon oBeacon = BLEBeacon();
oBeacon.setData(strManufacturerData);
Serial.printf("iBeacon Frame\n");
Serial.printf("ID: %04X Major: %d Minor: %d UUID: %s Power: %d\n", oBeacon.getManufacturerId(), ENDIAN_CHANGE_U16(oBeacon.getMajor()), ENDIAN_CHANGE_U16(oBeacon.getMinor()), oBeacon.getProximityUUID().toString().c_str(), oBeacon.getSignalPower());
}
else
{
Serial.println("Found another manufacturers beacon!");
Serial.printf("strManufacturerData: %d ", strManufacturerData.length());
for (int i = 0; i < strManufacturerData.length(); i++)
{
Serial.printf("[%X]", cManufacturerData[i]);
}
Serial.printf("\n");
}
}
return;
}
BLEUUID eddyUUID = (uint16_t)0xfeaa;
if (advertisedDevice->getServiceUUID().equals(eddyUUID))
{
std::string serviceData = advertisedDevice->getServiceData(eddyUUID);
if (serviceData[0] == 0x10)
{
Serial.println("Found an EddystoneURL beacon!");
BLEEddystoneURL foundEddyURL = BLEEddystoneURL();
foundEddyURL.setData(serviceData);
std::string bareURL = foundEddyURL.getURL();
if (bareURL[0] == 0x00)
{
Serial.println("DATA-->");
for (int idx = 0; idx < serviceData.length(); idx++)
{
Serial.printf("0x%08X ", serviceData[idx]);
}
Serial.println("\nInvalid Data");
return;
}
Serial.printf("Found URL: %s\n", foundEddyURL.getURL().c_str());
Serial.printf("Decoded URL: %s\n", foundEddyURL.getDecodedURL().c_str());
Serial.printf("TX power %d\n", foundEddyURL.getPower());
Serial.println("\n");
}
else if (serviceData[0] == 0x20)
{
Serial.println("Found an EddystoneTLM beacon!");
BLEEddystoneTLM foundEddyURL = BLEEddystoneTLM();
foundEddyURL.setData(serviceData);
Serial.printf("Reported battery voltage: %dmV\n", foundEddyURL.getVolt());
Serial.printf("Reported temperature from TLM class: %.2fC\n", (double)foundEddyURL.getTemp());
int temp = (int)serviceData[5] + (int)(serviceData[4] << 8);
float calcTemp = temp / 256.0f;
Serial.printf("Reported temperature from data: %.2fC\n", calcTemp);
Serial.printf("Reported advertise count: %d\n", foundEddyURL.getCount());
Serial.printf("Reported time since last reboot: %ds\n", foundEddyURL.getTime());
Serial.println("\n");
Serial.print(foundEddyURL.toString().c_str());
Serial.println("\n");
}
}
}
};
void setup()
{
Serial.begin(115200);
Serial.println("Scanning...");
BLEDevice::init("");
pBLEScan = BLEDevice::getScan(); //create new scan
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
pBLEScan->setInterval(100);
pBLEScan->setWindow(99); // less or equal setInterval value
}
void loop()
{
// put your main code here, to run repeatedly:
BLEScanResults foundDevices = pBLEScan->start(scanTime, false);
Serial.print("Devices found: ");
Serial.println(foundDevices.getCount());
Serial.println("Scan done!");
pBLEScan->clearResults(); // delete results fromBLEScan buffer to release memory
delay(2000);
}

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## BLE Beacon Scanner
Initiates a BLE device scan.
Checks if the discovered devices are
- an iBeacon
- an Eddystone TLM beacon
- an Eddystone URL beacon
and sends the decoded beacon information over Serial log

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/*
EddystoneTLM beacon for NimBLE by BeeGee based on https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_Eddystone_TLM_deepsleep/ESP32_Eddystone_TLM_deepsleep.ino
EddystoneTLM frame specification https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md
*/
/*
Create a BLE server that will send periodic Eddystone URL frames.
The design of creating the BLE server is:
1. Create a BLE Server
2. Create advertising data
3. Start advertising.
4. wait
5. Stop advertising.
6. deep sleep
*/
#include "NimBLEDevice.h"
#include "NimBLEBeacon.h"
#include "NimBLEAdvertising.h"
#include "NimBLEEddystoneURL.h"
#include "sys/time.h"
#include "esp_sleep.h"
#define GPIO_DEEP_SLEEP_DURATION 10 // sleep x seconds and then wake up
// UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d"
RTC_DATA_ATTR static time_t last; // remember last boot in RTC Memory
RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
BLEAdvertising *pAdvertising;
struct timeval nowTimeStruct;
time_t lastTenth;
// Check
// https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md
// and http://www.hugi.scene.org/online/coding/hugi%2015%20-%20cmtadfix.htm
// for the temperature value. It is a 8.8 fixed-point notation
void setBeacon()
{
char beacon_data[25];
uint16_t beconUUID = 0xFEAA;
uint16_t volt = random(2800, 3700); // 3300mV = 3.3V
float tempFloat = random(2000, 3100) / 100.0f;
Serial.printf("Random temperature is %.2fC\n", tempFloat);
int temp = (int)(tempFloat * 256); //(uint16_t)((float)23.00);
Serial.printf("Converted to 8.8 format %0X%0X\n", (temp >> 8), (temp & 0xFF));
BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
oScanResponseData.setFlags(0x06); // GENERAL_DISC_MODE 0x02 | BR_EDR_NOT_SUPPORTED 0x04
oScanResponseData.setCompleteServices(BLEUUID(beconUUID));
beacon_data[0] = 0x20; // Eddystone Frame Type (Unencrypted Eddystone-TLM)
beacon_data[1] = 0x00; // TLM version
beacon_data[2] = (volt >> 8); // Battery voltage, 1 mV/bit i.e. 0xCE4 = 3300mV = 3.3V
beacon_data[3] = (volt & 0xFF); //
beacon_data[4] = (temp >> 8); // Beacon temperature
beacon_data[5] = (temp & 0xFF); //
beacon_data[6] = ((bootcount & 0xFF000000) >> 24); // Advertising PDU count
beacon_data[7] = ((bootcount & 0xFF0000) >> 16); //
beacon_data[8] = ((bootcount & 0xFF00) >> 8); //
beacon_data[9] = (bootcount & 0xFF); //
beacon_data[10] = ((lastTenth & 0xFF000000) >> 24); // Time since power-on or reboot as 0.1 second resolution counter
beacon_data[11] = ((lastTenth & 0xFF0000) >> 16); //
beacon_data[12] = ((lastTenth & 0xFF00) >> 8); //
beacon_data[13] = (lastTenth & 0xFF); //
oScanResponseData.setServiceData(BLEUUID(beconUUID), std::string(beacon_data, 14));
oAdvertisementData.setName("TLMBeacon");
pAdvertising->setAdvertisementData(oAdvertisementData);
pAdvertising->setScanResponseData(oScanResponseData);
}
void setup()
{
Serial.begin(115200);
gettimeofday(&nowTimeStruct, NULL);
Serial.printf("start ESP32 %d\n", bootcount++);
Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n", nowTimeStruct.tv_sec, nowTimeStruct.tv_sec - last);
last = nowTimeStruct.tv_sec;
lastTenth = nowTimeStruct.tv_sec * 10; // Time since last reset as 0.1 second resolution counter
// Create the BLE Device
BLEDevice::init("TLMBeacon");
BLEDevice::setPower(ESP_PWR_LVL_N12);
pAdvertising = BLEDevice::getAdvertising();
setBeacon();
// Start advertising
pAdvertising->start();
Serial.println("Advertizing started for 10s ...");
delay(10000);
pAdvertising->stop();
Serial.printf("enter deep sleep for 10s\n");
esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
Serial.printf("in deep sleep\n");
}
void loop()
{
}

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lib/libesp32_div/NimBLE-Arduino/examples/BLE_EddystoneTLM_Beacon/BLE_EddystoneTLM_Beacon.md
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## Eddystone TLM beacon
EddystoneTLM beacon by BeeGee based on
[pcbreflux ESP32 Eddystone TLM deepsleep](https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_Eddystone_TLM_deepsleep/ESP32_Eddystone_TLM_deepsleep.ino)
[EddystoneTLM frame specification](https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md)
Create a BLE server that will send periodic Eddystone TLM frames.
The design of creating the BLE server is:
1. Create a BLE Server
2. Create advertising data
3. Start advertising.
4. wait
5. Stop advertising.
6. deep sleep

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lib/libesp32_div/NimBLE-Arduino/examples/BLE_EddystoneURL_Beacon/BLE_EddystoneURL_Beacon.ino
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/*
EddystoneURL beacon for NimBLE by BeeGee
EddystoneURL frame specification https://github.com/google/eddystone/blob/master/eddystone-url/README.md
*/
/*
Create a BLE server that will send periodic Eddystone URL frames.
The design of creating the BLE server is:
1. Create a BLE Server
2. Create advertising data
3. Start advertising.
4. wait
5. Stop advertising.
6. deep sleep
*/
#include "NimBLEDevice.h"
#include "NimBLEBeacon.h"
#include "NimBLEEddystoneURL.h"
#include "sys/time.h"
#include "esp_sleep.h"
#define GPIO_DEEP_SLEEP_DURATION 10 // sleep x seconds and then wake up
// UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d"
RTC_DATA_ATTR static time_t last; // remember last boot in RTC Memory
RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
BLEAdvertising *pAdvertising;
struct timeval now;
static const char *eddystone_url_prefix_subs[] = {
"http://www.",
"https://www.",
"http://",
"https://",
"urn:uuid:",
NULL
};
static const char *eddystone_url_suffix_subs[] = {
".com/",
".org/",
".edu/",
".net/",
".info/",
".biz/",
".gov/",
".com",
".org",
".edu",
".net",
".info",
".biz",
".gov",
NULL
};
static int string_begin_with(const char *str, const char *prefix)
{
int prefix_len = strlen(prefix);
if (strncmp(prefix, str, prefix_len) == 0)
{
return prefix_len;
}
return 0;
}
void setBeacon()
{
BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
const char url[] = "https://d.giesecke.tk";
int scheme_len, ext_len = 1, i, idx, url_idx;
char *ret_data;
int url_len = strlen(url);
ret_data = (char *)calloc(1, url_len + 13);
ret_data[0] = 2; // Len
ret_data[1] = 0x01; // Type Flags
ret_data[2] = 0x06; // GENERAL_DISC_MODE 0x02 | BR_EDR_NOT_SUPPORTED 0x04
ret_data[3] = 3; // Len
ret_data[4] = 0x03; // Type 16-Bit UUID
ret_data[5] = 0xAA; // Eddystone UUID 2 -> 0xFEAA LSB
ret_data[6] = 0xFE; // Eddystone UUID 1 MSB
ret_data[7] = 19; // Length of Beacon Data
ret_data[8] = 0x16; // Type Service Data
ret_data[9] = 0xAA; // Eddystone UUID 2 -> 0xFEAA LSB
ret_data[10] = 0xFE; // Eddystone UUID 1 MSB
ret_data[11] = 0x10; // Eddystone Frame Type
ret_data[12] = 0xF4; // Beacons TX power at 0m
i = 0, idx = 13, url_idx = 0;
//replace prefix
scheme_len = 0;
while (eddystone_url_prefix_subs[i] != NULL)
{
if ((scheme_len = string_begin_with(url, eddystone_url_prefix_subs[i])) > 0)
{
ret_data[idx] = i;
idx++;
url_idx += scheme_len;
break;
}
i++;
}
while (url_idx < url_len)
{
i = 0;
ret_data[idx] = url[url_idx];
ext_len = 1;
while (eddystone_url_suffix_subs[i] != NULL)
{
if ((ext_len = string_begin_with(&url[url_idx], eddystone_url_suffix_subs[i])) > 0)
{
ret_data[idx] = i;
break;
}
else
{
ext_len = 1; //inc 1
}
i++;
}
url_idx += ext_len;
idx++;
}
ret_data[7] = idx - 8;
Serial.printf("struct size %d url size %d reported len %d\n",
url_len + 13,
url_len, ret_data[7]);
Serial.printf("URL in data %s\n", &ret_data[13]);
std::string eddyStoneData(ret_data);
oAdvertisementData.addData(eddyStoneData);
oScanResponseData.setName("MeBeacon");
pAdvertising->setAdvertisementData(oAdvertisementData);
pAdvertising->setScanResponseData(oScanResponseData);
}
void setup()
{
Serial.begin(115200);
gettimeofday(&now, NULL);
Serial.printf("start ESP32 %d\n", bootcount++);
Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n", now.tv_sec, now.tv_sec - last);
last = now.tv_sec;
// Create the BLE Device
BLEDevice::init("MeBeacon");
BLEDevice::setPower(ESP_PWR_LVL_N12);
pAdvertising = BLEDevice::getAdvertising();
setBeacon();
// Start advertising
pAdvertising->start();
Serial.println("Advertizing started...");
delay(10000);
pAdvertising->stop();
Serial.printf("enter deep sleep\n");
esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
Serial.printf("in deep sleep\n");
}
void loop()
{
}

14
lib/libesp32_div/NimBLE-Arduino/examples/BLE_EddystoneURL_Beacon/BLE_EddystoneURL_Beacon.md
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## Eddystone URL beacon
EddystoneURL beacon by BeeGee based on
[pcbreflux ESP32 Eddystone URL deepsleep](https://github.com/pcbreflux/espressif/tree/master/esp32/arduino/sketchbook/ESP32_Eddystone_URL_deepsleep)
[EddystoneURL frame specification](https://github.com/google/eddystone/blob/master/eddystone-url/README.md)
Create a BLE server that will send periodic Eddystone URL frames.
The design of creating the BLE server is:
1. Create a BLE Server
2. Create advertising data
3. Start advertising.
4. wait
5. Stop advertising.
6. deep sleep

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lib/libesp32_div/NimBLE-Arduino/examples/Bluetooth_5/NimBLE_extended_client/NimBLE_extended_client.ino
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/** NimBLE Extended Client Demo:
*
* Demonstrates the Bluetooth 5.x client capabilities.
*
* Created: on April 2 2022
* Author: H2zero
*
*/
/****************************************************
* For use with ESP32C3, ESP32S3, ESP32H2 ONLY! *
/**************************************************/
#include <NimBLEDevice.h>
#if !CONFIG_BT_NIMBLE_EXT_ADV
# error Must enable extended advertising, see nimconfig.h file.
#endif
void scanEndedCB(NimBLEScanResults results);
#define SERVICE_UUID "ABCD"
#define CHARACTERISTIC_UUID "1234"
static NimBLEAdvertisedDevice* advDevice;
static bool doConnect = false;
static uint32_t scanTime = 10; /* 0 = scan forever */
/* Define the PHY's to use when connecting to peer devices, can be 1, 2, or all 3 (default).*/
static uint8_t connectPhys = BLE_GAP_LE_PHY_CODED_MASK | BLE_GAP_LE_PHY_1M_MASK /*| BLE_GAP_LE_PHY_2M_MASK */ ;
/* Define a class to handle the callbacks for client connection events */
class ClientCallbacks : public NimBLEClientCallbacks {
void onConnect(NimBLEClient* pClient) {
Serial.printf("Connected\n");
};
void onDisconnect(NimBLEClient* pClient) {
Serial.printf("%s Disconnected - Starting scan\n", pClient->getPeerAddress().toString().c_str());
NimBLEDevice::getScan()->start(scanTime, scanEndedCB);
};
};
/* Define a class to handle the callbacks when advertisements are received */
class AdvertisedDeviceCallbacks: public NimBLEAdvertisedDeviceCallbacks {
void onResult(NimBLEAdvertisedDevice* advertisedDevice) {
Serial.printf("Advertised Device found: %s\n", advertisedDevice->toString().c_str());
if(advertisedDevice->isAdvertisingService(NimBLEUUID("ABCD")))
{
Serial.printf("Found Our Service\n");
/* Ready to connect now */
doConnect = true;
/* Save the device reference in a global for the client to use*/
advDevice = advertisedDevice;
/* stop scan before connecting */
NimBLEDevice::getScan()->stop();
}
};
};
/* Callback to process the results of the last scan or restart it */
void scanEndedCB(NimBLEScanResults results){
Serial.printf("Scan Ended\n");
if (!doConnect) { /* Don't start the scan while connecting */
NimBLEDevice::getScan()->start(scanTime, scanEndedCB);
}
}
/* Handles the provisioning of clients and connects / interfaces with the server */
bool connectToServer() {
NimBLEClient* pClient = nullptr;
pClient = NimBLEDevice::createClient();
pClient->setClientCallbacks(new ClientCallbacks, false);
/* Set the PHY's to use for this connection. This is a bitmask that represents the PHY's:
* * 0x01 BLE_GAP_LE_PHY_1M_MASK
* * 0x02 BLE_GAP_LE_PHY_2M_MASK
* * 0x04 BLE_GAP_LE_PHY_CODED_MASK
* Combine these with OR ("|"), eg BLE_GAP_LE_PHY_1M_MASK | BLE_GAP_LE_PHY_2M_MASK | BLE_GAP_LE_PHY_CODED_MASK;
*/
pClient->setConnectPhy(connectPhys);
/** Set how long we are willing to wait for the connection to complete (seconds), default is 30. */
pClient->setConnectTimeout(10);
if (!pClient->connect(advDevice)) {
/* Created a client but failed to connect, don't need to keep it as it has no data */
NimBLEDevice::deleteClient(pClient);
Serial.printf("Failed to connect, deleted client\n");
return false;
}
Serial.printf("Connected to: %s RSSI: %d\n",
pClient->getPeerAddress().toString().c_str(),
pClient->getRssi());
/* Now we can read/write/subscribe the charateristics of the services we are interested in */
NimBLERemoteService* pSvc = nullptr;
NimBLERemoteCharacteristic* pChr = nullptr;
pSvc = pClient->getService(SERVICE_UUID);
if (pSvc) {
pChr = pSvc->getCharacteristic(CHARACTERISTIC_UUID);
if (pChr) {
// Read the value of the characteristic.
if (pChr->canRead()) {
std::string value = pChr->readValue();
Serial.printf("Characteristic value: %s\n", value.c_str());
}
}
} else {
Serial.printf("ABCD service not found.\n");
}
NimBLEDevice::deleteClient(pClient);
Serial.printf("Done with this device!\n");
return true;
}
void setup () {
Serial.begin(115200);
Serial.printf("Starting NimBLE Client\n");
/* Initialize NimBLE, no device name specified as we are not advertising */
NimBLEDevice::init("");
NimBLEScan* pScan = NimBLEDevice::getScan();
/* create a callback that gets called when advertisers are found */
pScan->setAdvertisedDeviceCallbacks(new AdvertisedDeviceCallbacks());
/* Set scan interval (how often) and window (how long) in milliseconds */
pScan->setInterval(97);
pScan->setWindow(67);
/* Active scan will gather scan response data from advertisers
* but will use more energy from both devices
*/
pScan->setActiveScan(true);
/* Start scanning for advertisers for the scan time specified (in seconds) 0 = forever
* Optional callback for when scanning stops.
*/
pScan->start(scanTime, scanEndedCB);
Serial.printf("Scanning for peripherals\n");
}
void loop () {
/* Loop here until we find a device we want to connect to */
if (doConnect) {
/* Found a device we want to connect to, do it now */
if (connectToServer()) {
Serial.printf("Success!, scanning for more!\n");
} else {
Serial.printf("Failed to connect, starting scan\n");
}
doConnect = false;
NimBLEDevice::getScan()->start(scanTime, scanEndedCB);
}
delay(10);
}

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/** NimBLE Extended Advertiser Demo:
*
* Demonstrates the Bluetooth 5.x extended advertising capabilities.
*
* This demo will advertise a long data string on the CODED and 1M Phy's and
* starts a server allowing connection over either PHY's. It will advertise for
* 5 seconds then sleep for 20 seconds, if a client connects it will sleep once
* it has disconnected then repeats.
*
* Created: on April 2 2022
* Author: H2zero
*
*/
/****************************************************
* For use with ESP32C3, ESP32S3, ESP32H2 ONLY! *
/**************************************************/
#include "NimBLEDevice.h"
#if !CONFIG_BT_NIMBLE_EXT_ADV
# error Must enable extended advertising, see nimconfig.h file.
#endif
#include "esp_sleep.h"
#define SERVICE_UUID "ABCD"
#define CHARACTERISTIC_UUID "1234"
/* Time in milliseconds to advertise */
static uint32_t advTime = 5000;
/* Time to sleep between advertisements */
static uint32_t sleepSeconds = 20;
/* Primary PHY used for advertising, can be one of BLE_HCI_LE_PHY_1M or BLE_HCI_LE_PHY_CODED */
static uint8_t primaryPhy = BLE_HCI_LE_PHY_CODED;
/* Secondary PHY used for advertising and connecting,
* can be one of BLE_HCI_LE_PHY_1M, BLE_HCI_LE_PHY_2M or BLE_HCI_LE_PHY_CODED
*/
static uint8_t secondaryPhy = BLE_HCI_LE_PHY_1M;
/* Handler class for server events */
class ServerCallbacks: public NimBLEServerCallbacks {
void onConnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
Serial.printf("Client connected:: %s\n", NimBLEAddress(desc->peer_ota_addr).toString().c_str());
};
void onDisconnect(NimBLEServer* pServer) {
Serial.printf("Client disconnected - sleeping for %u seconds\n", sleepSeconds);
esp_deep_sleep_start();
};
};
/* Callback class to handle advertising events */
class advertisingCallbacks: public NimBLEExtAdvertisingCallbacks {
void onStopped(NimBLEExtAdvertising* pAdv, int reason, uint8_t inst_id) {
/* Check the reason advertising stopped, don't sleep if client is connecting */
printf("Advertising instance %u stopped\n", inst_id);
switch (reason) {
case 0:
printf("Client connecting\n");
return;
case BLE_HS_ETIMEOUT:
printf("Time expired - sleeping for %u seconds\n", sleepSeconds);
break;
default:
break;
}
esp_deep_sleep_start();
}
};
void setup () {
Serial.begin(115200);
NimBLEDevice::init("Extended advertiser");
/* Create the server and add the services/characteristics/descriptors */
NimBLEServer *pServer = NimBLEDevice::createServer();
pServer->setCallbacks(new ServerCallbacks);
NimBLEService *pService = pServer->createService(SERVICE_UUID);
NimBLECharacteristic *pCharacteristic = pService->createCharacteristic(CHARACTERISTIC_UUID,
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY);
pCharacteristic->setValue("Hello World");
/* Start the services */
pService->start();
/*
* Create an extended advertisement with the instance ID 0 and set the PHY's.
* Multiple instances can be added as long as the instance ID is incremented.
*/
NimBLEExtAdvertisement extAdv(primaryPhy, secondaryPhy);
/* Set the advertisement as connectable */
extAdv.setConnectable(true);
/* As per Bluetooth specification, extended advertising cannot be both scannable and connectable */
extAdv.setScannable(false); // The default is false, set here for demonstration.
/* Extended advertising allows for 251 bytes (minus header bytes ~20) in a single advertisement or up to 1650 if chained */
extAdv.setServiceData(NimBLEUUID(SERVICE_UUID), std::string("Extended Advertising Demo.\r\n"
"Extended advertising allows for "
"251 bytes of data in a single advertisement,\r\n"
"or up to 1650 bytes with chaining.\r\n"
"This example message is 226 bytes long "
"and is using CODED_PHY for long range."));
extAdv.setCompleteServices16({NimBLEUUID(SERVICE_UUID)});
/* When extended advertising is enabled `NimBLEDevice::getAdvertising` returns a pointer to `NimBLEExtAdvertising */
NimBLEExtAdvertising* pAdvertising = NimBLEDevice::getAdvertising();
/* Set the callbacks for advertising events */
pAdvertising->setCallbacks(new advertisingCallbacks);
/*
* NimBLEExtAdvertising::setInstanceData takes the instance ID and
* a reference to a `NimBLEExtAdvertisement` object. This sets the data
* that will be advertised for this instance ID, returns true if successful.
*
* Note: It is safe to create the advertisement as a local variable if setInstanceData
* is called before exiting the code block as the data will be copied.
*/
if (pAdvertising->setInstanceData(0, extAdv)) {
/*
* `NimBLEExtAdvertising::start` takes the advertisement instance ID to start
* and a duration in milliseconds or a max number of advertisements to send (or both).
*/
if (pAdvertising->start(0, advTime)) {
Serial.printf("Started advertising\n");
} else {
Serial.printf("Failed to start advertising\n");
}
} else {
Serial.printf("Failed to register advertisment data\n");
}
esp_sleep_enable_timer_wakeup(sleepSeconds * 1000000);
}
void loop () {
}

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/** NimBLE Multi Advertiser Demo:
*
* Demonstrates the Bluetooth 5.x extended advertising capabilities.
*
* This demo will advertise 2 advertisements, and extended scannable instance
* and a connectable legacy instance. They will advertise for 5 seconds then
* sleep for 20 seconds. The extended scannable instance will use the scan
* request callback to update it's data when a scan response is requested.
*
* Created: on April 9 2022
* Author: H2zero
*
*/
/****************************************************
* For use with ESP32C3, ESP32S3, ESP32H2 ONLY! *
/**************************************************/
#include <NimBLEDevice.h>
#if !CONFIG_BT_NIMBLE_EXT_ADV
# error Must enable extended advertising, see nimconfig.h file.
#endif
#include "esp_sleep.h"
#define SERVICE_UUID "ABCD"
#define CHARACTERISTIC_UUID "1234"
/* Time in milliseconds to advertise */
static uint32_t advTime = 5000;
/* Time to sleep between advertisements */
static uint32_t sleepTime = 20;
/* Primary PHY used for advertising, can be one of BLE_HCI_LE_PHY_1M or BLE_HCI_LE_PHY_CODED */
static uint8_t primaryPhy = BLE_HCI_LE_PHY_CODED;
/* Secondary PHY used for advertising and connecting,
* can be one of BLE_HCI_LE_PHY_1M, BLE_HCI_LE_PHY_2M or BLE_HCI_LE_PHY_CODED
*/
static uint8_t secondaryPhy = BLE_HCI_LE_PHY_1M;
/* Handler class for server events */
class ServerCallbacks: public NimBLEServerCallbacks {
void onConnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
Serial.printf("Client connected: %s\n", NimBLEAddress(desc->peer_ota_addr).toString().c_str());
};
void onDisconnect(NimBLEServer* pServer) {
Serial.printf("Client disconnected\n");
// if still advertising we won't sleep yet.
if (!pServer->getAdvertising()->isAdvertising()) {
Serial.printf("Sleeping for %u seconds\n", sleepTime);
esp_deep_sleep_start();
}
};
};
/* Callback class to handle advertising events */
class advCallbacks: public NimBLEExtAdvertisingCallbacks {
void onStopped(NimBLEExtAdvertising* pAdv, int reason, uint8_t inst_id) {
/* Check the reason advertising stopped, don't sleep if client is connecting */
Serial.printf("Advertising instance %u stopped\n", inst_id);
switch (reason) {
case 0:
Serial.printf(" client connecting\n");
return;
case BLE_HS_ETIMEOUT:
Serial.printf("Time expired - sleeping for %u seconds\n", sleepTime);
break;
default:
break;
}
esp_deep_sleep_start();
}
bool m_updatedSR = false;
void onScanRequest(NimBLEExtAdvertising* pAdv, uint8_t inst_id, NimBLEAddress addr) {
Serial.printf("Scan request for instance %u\n", inst_id);
// if the data has already been updated we don't need to change it again.
if (!m_updatedSR) {
Serial.printf("Updating scan data\n");
NimBLEExtAdvertisement sr;
sr.setServiceData(NimBLEUUID(SERVICE_UUID), std::string("Hello from scan response!"));
pAdv->setScanResponseData(inst_id, sr);
m_updatedSR = true;
}
}
};
void setup () {
Serial.begin(115200);
NimBLEDevice::init("Multi advertiser");
/* Create a server for our legacy advertiser */
NimBLEServer *pServer = NimBLEDevice::createServer();
pServer->setCallbacks(new ServerCallbacks);
NimBLEService *pService = pServer->createService(SERVICE_UUID);
NimBLECharacteristic *pCharacteristic = pService->createCharacteristic(CHARACTERISTIC_UUID,
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY);
pCharacteristic->setValue("Hello World");
/* Start the service */
pService->start();
/* Create our multi advertising instances */
// extended scannable instance advertising on coded and 1m PHY's.
NimBLEExtAdvertisement extScannable(primaryPhy, secondaryPhy);
// Legacy advertising as a connectable device.
NimBLEExtAdvertisement legacyConnectable;
// Optional scan response data.
NimBLEExtAdvertisement legacyScanResponse;
/* As per Bluetooth specification, extended advertising cannot be both scannable and connectable */
extScannable.setScannable(true);
extScannable.setConnectable(false);
/* Set the initial data */
extScannable.setServiceData(NimBLEUUID(SERVICE_UUID), std::string("Scan me!"));
/* enable the scan response callback, we will use this to update the data. */
extScannable.enableScanRequestCallback(true);
/* Optional custom address for this advertisment. */
legacyConnectable.setAddress(NimBLEAddress("DE:AD:BE:EF:BA:AD"));
/* Set the advertising data. */
legacyConnectable.setName("Legacy");
legacyConnectable.setCompleteServices16({NimBLEUUID(SERVICE_UUID)});
/* Set the legacy and connectable flags. */
legacyConnectable.setLegacyAdvertising(true);
legacyConnectable.setConnectable(true);
/* Put some data in the scan response if desired. */
legacyScanResponse.setServiceData(NimBLEUUID(SERVICE_UUID), "Legacy SR");
/* Get the advertising ready */
NimBLEExtAdvertising* pAdvertising = NimBLEDevice::getAdvertising();
/* Set the callbacks to handle advertising events */
pAdvertising->setCallbacks(new advCallbacks);
/* Set instance data.
* Up to 5 instances can be used if configured in menuconfig, instance 0 is always available.
*
* We will set the extended scannable data on instance 0 and the legacy data on instance 1.
* Note that the legacy scan response data needs to be set to the same instance (1).
*/
if (pAdvertising->setInstanceData( 0, extScannable ) &&
pAdvertising->setInstanceData( 1, legacyConnectable ) &&
pAdvertising->setScanResponseData( 1, legacyScanResponse )) {
/*
* `NimBLEExtAdvertising::start` takes the advertisement instance ID to start
* and a duration in milliseconds or a max number of advertisements to send (or both).
*/
if (pAdvertising->start(0, advTime) && pAdvertising->start(1, advTime)) {
Serial.printf("Started advertising\n");
} else {
Serial.printf("Failed to start advertising\n");
}
} else {
Serial.printf("Failed to register advertisment data\n");
}
esp_sleep_enable_timer_wakeup(sleepTime * 1000000);
}
void loop(){
}

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lib/libesp32_div/NimBLE-Arduino/examples/NimBLE_Client/NimBLE_Client.ino
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/** NimBLE_Server Demo:
*
* Demonstrates many of the available features of the NimBLE client library.
*
* Created: on March 24 2020
* Author: H2zero
*
*/
#include <NimBLEDevice.h>
void scanEndedCB(NimBLEScanResults results);
static NimBLEAdvertisedDevice* advDevice;
static bool doConnect = false;
static uint32_t scanTime = 0; /** 0 = scan forever */
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class ClientCallbacks : public NimBLEClientCallbacks {
void onConnect(NimBLEClient* pClient) {
Serial.println("Connected");
/** After connection we should change the parameters if we don't need fast response times.
* These settings are 150ms interval, 0 latency, 450ms timout.
* Timeout should be a multiple of the interval, minimum is 100ms.
* I find a multiple of 3-5 * the interval works best for quick response/reconnect.
* Min interval: 120 * 1.25ms = 150, Max interval: 120 * 1.25ms = 150, 0 latency, 60 * 10ms = 600ms timeout
*/
pClient->updateConnParams(120,120,0,60);
};
void onDisconnect(NimBLEClient* pClient) {
Serial.print(pClient->getPeerAddress().toString().c_str());
Serial.println(" Disconnected - Starting scan");
NimBLEDevice::getScan()->start(scanTime, scanEndedCB);
};
/** Called when the peripheral requests a change to the connection parameters.
* Return true to accept and apply them or false to reject and keep
* the currently used parameters. Default will return true.
*/
bool onConnParamsUpdateRequest(NimBLEClient* pClient, const ble_gap_upd_params* params) {
if(params->itvl_min < 24) { /** 1.25ms units */
return false;
} else if(params->itvl_max > 40) { /** 1.25ms units */
return false;
} else if(params->latency > 2) { /** Number of intervals allowed to skip */
return false;
} else if(params->supervision_timeout > 100) { /** 10ms units */
return false;
}
return true;
};
/********************* Security handled here **********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Client Passkey Request");
/** return the passkey to send to the server */
return 123456;
};
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");
Serial.println(pass_key);
/** Return false if passkeys don't match. */
return true;
};
/** Pairing process complete, we can check the results in ble_gap_conn_desc */
void onAuthenticationComplete(ble_gap_conn_desc* desc){
if(!desc->sec_state.encrypted) {
Serial.println("Encrypt connection failed - disconnecting");
/** Find the client with the connection handle provided in desc */
NimBLEDevice::getClientByID(desc->conn_handle)->disconnect();
return;
}
};
};
/** Define a class to handle the callbacks when advertisments are received */
class AdvertisedDeviceCallbacks: public NimBLEAdvertisedDeviceCallbacks {
void onResult(NimBLEAdvertisedDevice* advertisedDevice) {
Serial.print("Advertised Device found: ");
Serial.println(advertisedDevice->toString().c_str());
if(advertisedDevice->isAdvertisingService(NimBLEUUID("DEAD")))
{
Serial.println("Found Our Service");
/** stop scan before connecting */
NimBLEDevice::getScan()->stop();
/** Save the device reference in a global for the client to use*/
advDevice = advertisedDevice;
/** Ready to connect now */
doConnect = true;
}
};
};
/** Notification / Indication receiving handler callback */
void notifyCB(NimBLERemoteCharacteristic* pRemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify){
std::string str = (isNotify == true) ? "Notification" : "Indication";
str += " from ";
/** NimBLEAddress and NimBLEUUID have std::string operators */
str += std::string(pRemoteCharacteristic->getRemoteService()->getClient()->getPeerAddress());
str += ": Service = " + std::string(pRemoteCharacteristic->getRemoteService()->getUUID());
str += ", Characteristic = " + std::string(pRemoteCharacteristic->getUUID());
str += ", Value = " + std::string((char*)pData, length);
Serial.println(str.c_str());
}
/** Callback to process the results of the last scan or restart it */
void scanEndedCB(NimBLEScanResults results){
Serial.println("Scan Ended");
}
/** Create a single global instance of the callback class to be used by all clients */
static ClientCallbacks clientCB;
/** Handles the provisioning of clients and connects / interfaces with the server */
bool connectToServer() {
NimBLEClient* pClient = nullptr;
/** Check if we have a client we should reuse first **/
if(NimBLEDevice::getClientListSize()) {
/** Special case when we already know this device, we send false as the
* second argument in connect() to prevent refreshing the service database.
* This saves considerable time and power.
*/
pClient = NimBLEDevice::getClientByPeerAddress(advDevice->getAddress());
if(pClient){
if(!pClient->connect(advDevice, false)) {
Serial.println("Reconnect failed");
return false;
}
Serial.println("Reconnected client");
}
/** We don't already have a client that knows this device,
* we will check for a client that is disconnected that we can use.
*/
else {
pClient = NimBLEDevice::getDisconnectedClient();
}
}
/** No client to reuse? Create a new one. */
if(!pClient) {
if(NimBLEDevice::getClientListSize() >= NIMBLE_MAX_CONNECTIONS) {
Serial.println("Max clients reached - no more connections available");
return false;
}
pClient = NimBLEDevice::createClient();
Serial.println("New client created");
pClient->setClientCallbacks(&clientCB, false);
/** Set initial connection parameters: These settings are 15ms interval, 0 latency, 120ms timout.
* These settings are safe for 3 clients to connect reliably, can go faster if you have less
* connections. Timeout should be a multiple of the interval, minimum is 100ms.
* Min interval: 12 * 1.25ms = 15, Max interval: 12 * 1.25ms = 15, 0 latency, 51 * 10ms = 510ms timeout
*/
pClient->setConnectionParams(12,12,0,51);
/** Set how long we are willing to wait for the connection to complete (seconds), default is 30. */
pClient->setConnectTimeout(5);
if (!pClient->connect(advDevice)) {
/** Created a client but failed to connect, don't need to keep it as it has no data */
NimBLEDevice::deleteClient(pClient);
Serial.println("Failed to connect, deleted client");
return false;
}
}
if(!pClient->isConnected()) {
if (!pClient->connect(advDevice)) {
Serial.println("Failed to connect");
return false;
}
}
Serial.print("Connected to: ");
Serial.println(pClient->getPeerAddress().toString().c_str());
Serial.print("RSSI: ");
Serial.println(pClient->getRssi());
/** Now we can read/write/subscribe the charateristics of the services we are interested in */
NimBLERemoteService* pSvc = nullptr;
NimBLERemoteCharacteristic* pChr = nullptr;
NimBLERemoteDescriptor* pDsc = nullptr;
pSvc = pClient->getService("DEAD");
if(pSvc) { /** make sure it's not null */
pChr = pSvc->getCharacteristic("BEEF");
if(pChr) { /** make sure it's not null */
if(pChr->canRead()) {
Serial.print(pChr->getUUID().toString().c_str());
Serial.print(" Value: ");
Serial.println(pChr->readValue().c_str());
}
if(pChr->canWrite()) {
if(pChr->writeValue("Tasty")) {
Serial.print("Wrote new value to: ");
Serial.println(pChr->getUUID().toString().c_str());
}
else {
/** Disconnect if write failed */
pClient->disconnect();
return false;
}
if(pChr->canRead()) {
Serial.print("The value of: ");
Serial.print(pChr->getUUID().toString().c_str());
Serial.print(" is now: ");
Serial.println(pChr->readValue().c_str());
}
}
/** registerForNotify() has been deprecated and replaced with subscribe() / unsubscribe().
* Subscribe parameter defaults are: notifications=true, notifyCallback=nullptr, response=false.
* Unsubscribe parameter defaults are: response=false.
*/
if(pChr->canNotify()) {
//if(!pChr->registerForNotify(notifyCB)) {
if(!pChr->subscribe(true, notifyCB)) {
/** Disconnect if subscribe failed */
pClient->disconnect();
return false;
}
}
else if(pChr->canIndicate()) {
/** Send false as first argument to subscribe to indications instead of notifications */
//if(!pChr->registerForNotify(notifyCB, false)) {
if(!pChr->subscribe(false, notifyCB)) {
/** Disconnect if subscribe failed */
pClient->disconnect();
return false;
}
}
}
} else {
Serial.println("DEAD service not found.");
}
pSvc = pClient->getService("BAAD");
if(pSvc) { /** make sure it's not null */
pChr = pSvc->getCharacteristic("F00D");
if(pChr) { /** make sure it's not null */
if(pChr->canRead()) {
Serial.print(pChr->getUUID().toString().c_str());
Serial.print(" Value: ");
Serial.println(pChr->readValue().c_str());
}
pDsc = pChr->getDescriptor(NimBLEUUID("C01D"));
if(pDsc) { /** make sure it's not null */
Serial.print("Descriptor: ");
Serial.print(pDsc->getUUID().toString().c_str());
Serial.print(" Value: ");
Serial.println(pDsc->readValue().c_str());
}
if(pChr->canWrite()) {
if(pChr->writeValue("No tip!")) {
Serial.print("Wrote new value to: ");
Serial.println(pChr->getUUID().toString().c_str());
}
else {
/** Disconnect if write failed */
pClient->disconnect();
return false;
}
if(pChr->canRead()) {
Serial.print("The value of: ");
Serial.print(pChr->getUUID().toString().c_str());
Serial.print(" is now: ");
Serial.println(pChr->readValue().c_str());
}
}
/** registerForNotify() has been deprecated and replaced with subscribe() / unsubscribe().
* Subscribe parameter defaults are: notifications=true, notifyCallback=nullptr, response=false.
* Unsubscribe parameter defaults are: response=false.
*/
if(pChr->canNotify()) {
//if(!pChr->registerForNotify(notifyCB)) {
if(!pChr->subscribe(true, notifyCB)) {
/** Disconnect if subscribe failed */
pClient->disconnect();
return false;
}
}
else if(pChr->canIndicate()) {
/** Send false as first argument to subscribe to indications instead of notifications */
//if(!pChr->registerForNotify(notifyCB, false)) {
if(!pChr->subscribe(false, notifyCB)) {
/** Disconnect if subscribe failed */
pClient->disconnect();
return false;
}
}
}
} else {
Serial.println("BAAD service not found.");
}
Serial.println("Done with this device!");
return true;
}
void setup (){
Serial.begin(115200);
Serial.println("Starting NimBLE Client");
/** Initialize NimBLE, no device name spcified as we are not advertising */
NimBLEDevice::init("");
/** Set the IO capabilities of the device, each option will trigger a different pairing method.
* BLE_HS_IO_KEYBOARD_ONLY - Passkey pairing
* BLE_HS_IO_DISPLAY_YESNO - Numeric comparison pairing
* BLE_HS_IO_NO_INPUT_OUTPUT - DEFAULT setting - just works pairing
*/
//NimBLEDevice::setSecurityIOCap(BLE_HS_IO_KEYBOARD_ONLY); // use passkey
//NimBLEDevice::setSecurityIOCap(BLE_HS_IO_DISPLAY_YESNO); //use numeric comparison
/** 2 different ways to set security - both calls achieve the same result.
* no bonding, no man in the middle protection, secure connections.
*
* These are the default values, only shown here for demonstration.
*/
//NimBLEDevice::setSecurityAuth(false, false, true);
NimBLEDevice::setSecurityAuth(/*BLE_SM_PAIR_AUTHREQ_BOND | BLE_SM_PAIR_AUTHREQ_MITM |*/ BLE_SM_PAIR_AUTHREQ_SC);
/** Optional: set the transmit power, default is 3db */
#ifdef ESP_PLATFORM
NimBLEDevice::setPower(ESP_PWR_LVL_P9); /** +9db */
#else
NimBLEDevice::setPower(9); /** +9db */
#endif
/** Optional: set any devices you don't want to get advertisments from */
// NimBLEDevice::addIgnored(NimBLEAddress ("aa:bb:cc:dd:ee:ff"));
/** create new scan */
NimBLEScan* pScan = NimBLEDevice::getScan();
/** create a callback that gets called when advertisers are found */
pScan->setAdvertisedDeviceCallbacks(new AdvertisedDeviceCallbacks());
/** Set scan interval (how often) and window (how long) in milliseconds */
pScan->setInterval(45);
pScan->setWindow(15);
/** Active scan will gather scan response data from advertisers
* but will use more energy from both devices
*/
pScan->setActiveScan(true);
/** Start scanning for advertisers for the scan time specified (in seconds) 0 = forever
* Optional callback for when scanning stops.
*/
pScan->start(scanTime, scanEndedCB);
}
void loop (){
/** Loop here until we find a device we want to connect to */
while(!doConnect){
delay(1);
}
doConnect = false;
/** Found a device we want to connect to, do it now */
if(connectToServer()) {
Serial.println("Success! we should now be getting notifications, scanning for more!");
} else {
Serial.println("Failed to connect, starting scan");
}
NimBLEDevice::getScan()->start(scanTime,scanEndedCB);
}

71
lib/libesp32_div/NimBLE-Arduino/examples/NimBLE_Scan_Continuous/NimBLE_Scan_Continuous.ino
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/** Example of continuous scanning for BLE advertisements.
* This example will scan forever while consuming as few resources as possible
* and report all advertisments on the serial monitor.
*
* Created: on January 31 2021
* Author: H2zero
*
*/
#include "NimBLEDevice.h"
NimBLEScan* pBLEScan;
class MyAdvertisedDeviceCallbacks: public NimBLEAdvertisedDeviceCallbacks {
void onResult(NimBLEAdvertisedDevice* advertisedDevice) {
Serial.printf("Advertised Device: %s \n", advertisedDevice->toString().c_str());
}
};
void setup() {
Serial.begin(115200);
Serial.println("Scanning...");
/** *Optional* Sets the filtering mode used by the scanner in the BLE controller.
*
* Can be one of:
* CONFIG_BTDM_SCAN_DUPL_TYPE_DEVICE (0) (default)
* Filter by device address only, advertisements from the same address will be reported only once.
*
* CONFIG_BTDM_SCAN_DUPL_TYPE_DATA (1)
* Filter by data only, advertisements with the same data will only be reported once,
* even from different addresses.
*
* CONFIG_BTDM_SCAN_DUPL_TYPE_DATA_DEVICE (2)
* Filter by address and data, advertisements from the same address will be reported only once,
* except if the data in the advertisement has changed, then it will be reported again.
*
* Can only be used BEFORE calling NimBLEDevice::init.
*/
NimBLEDevice::setScanFilterMode(CONFIG_BTDM_SCAN_DUPL_TYPE_DEVICE);
/** *Optional* Sets the scan filter cache size in the BLE controller.
* When the number of duplicate advertisements seen by the controller
* reaches this value it will clear the cache and start reporting previously
* seen devices. The larger this number, the longer time between repeated
* device reports. Range 10 - 1000. (default 20)
*
* Can only be used BEFORE calling NimBLEDevice::init.
*/
NimBLEDevice::setScanDuplicateCacheSize(200);
NimBLEDevice::init("");
pBLEScan = NimBLEDevice::getScan(); //create new scan
// Set the callback for when devices are discovered, no duplicates.
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks(), false);
pBLEScan->setActiveScan(true); // Set active scanning, this will get more data from the advertiser.
pBLEScan->setInterval(97); // How often the scan occurs / switches channels; in milliseconds,
pBLEScan->setWindow(37); // How long to scan during the interval; in milliseconds.
pBLEScan->setMaxResults(0); // do not store the scan results, use callback only.
}
void loop() {
// If an error occurs that stops the scan, it will be restarted here.
if(pBLEScan->isScanning() == false) {
// Start scan with: duration = 0 seconds(forever), no scan end callback, not a continuation of a previous scan.
pBLEScan->start(0, nullptr, false);
}
delay(2000);
}

67
lib/libesp32_div/NimBLE-Arduino/examples/NimBLE_Scan_Whitelist/NimBLE_Scan_whitelist.ino
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/*
* NimBLE_Scan_Whitelist demo
*
* Created May 16, 2021
* Author: h2zero
*/
#include <NimBLEDevice.h>
int scanTime = 5; //In seconds
NimBLEScan* pBLEScan;
class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
void onResult(BLEAdvertisedDevice* advertisedDevice) {
Serial.printf("Advertised Device: %s \n", advertisedDevice->toString().c_str());
/*
* Here we add the device scanned to the whitelist based on service data but any
* advertised data can be used for your preffered data.
*/
if (advertisedDevice->haveServiceData()) {
/* If this is a device with data we want to capture, add it to the whitelist */
if (advertisedDevice->getServiceData(NimBLEUUID("AABB")) != "") {
Serial.printf("Adding %s to whitelist\n", std::string(advertisedDevice->getAddress()).c_str());
NimBLEDevice::whiteListAdd(advertisedDevice->getAddress());
}
}
}
};
void setup() {
Serial.begin(115200);
Serial.println("Scanning...");
NimBLEDevice::init("");
pBLEScan = NimBLEDevice::getScan();
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
pBLEScan->setActiveScan(true);
pBLEScan->setInterval(100);
pBLEScan->setFilterPolicy(BLE_HCI_SCAN_FILT_NO_WL);
pBLEScan->setWindow(99);
}
void loop() {
NimBLEScanResults foundDevices = pBLEScan->start(scanTime, false);
Serial.print("Devices found: ");
Serial.println(foundDevices.getCount());
Serial.println("Scan done!");
Serial.println("Whitelist contains:");
for (auto i=0; i<NimBLEDevice::getWhiteListCount(); ++i) {
Serial.println(NimBLEDevice::getWhiteListAddress(i).toString().c_str());
}
/*
* If we have addresses in the whitelist enable the filter unless no devices were found
* then scan without so we can find any new devices that we want.
*/
if (NimBLEDevice::getWhiteListCount() > 0) {
if (foundDevices.getCount() == 0) {
pBLEScan->setFilterPolicy(BLE_HCI_SCAN_FILT_NO_WL);
} else {
pBLEScan->setFilterPolicy(BLE_HCI_SCAN_FILT_USE_WL);
}
}
pBLEScan->clearResults();
delay(2000);
}

95
lib/libesp32_div/NimBLE-Arduino/examples/NimBLE_Secure_Client/NimBLE_Secure_Client.ino
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/** NimBLE_Secure_Client Demo:
*
* This example demonstrates the secure passkey protected conenction and communication between an esp32 server and an esp32 client.
* Please note that esp32 stores auth info in nvs memory. After a successful connection it is possible that a passkey change will be ineffective.
* To avoid this clear the memory of the esp32's between security testings. esptool.py is capable of this, example: esptool.py --port /dev/ttyUSB0 erase_flash.
*
* Created: on Jan 08 2021
* Author: mblasee
*/
#include <NimBLEDevice.h>
class ClientCallbacks : public NimBLEClientCallbacks
{
uint32_t onPassKeyRequest()
{
Serial.println("Client Passkey Request");
/** return the passkey to send to the server */
/** Change this to be different from NimBLE_Secure_Server if you want to test what happens on key mismatch */
return 123456;
};
};
static ClientCallbacks clientCB;
void setup()
{
Serial.begin(115200);
Serial.println("Starting NimBLE Client");
NimBLEDevice::init("");
#ifdef ESP_PLATFORM
NimBLEDevice::setPower(ESP_PWR_LVL_P9); /** +9db */
#else
NimBLEDevice::setPower(9); /** +9db */
#endif
NimBLEDevice::setSecurityAuth(true, true, true);
NimBLEDevice::setSecurityIOCap(BLE_HS_IO_KEYBOARD_ONLY);
NimBLEScan *pScan = NimBLEDevice::getScan();
NimBLEScanResults results = pScan->start(5);
NimBLEUUID serviceUuid("ABCD");
for (int i = 0; i < results.getCount(); i++)
{
NimBLEAdvertisedDevice device = results.getDevice(i);
Serial.println(device.getName().c_str());
if (device.isAdvertisingService(serviceUuid))
{
NimBLEClient *pClient = NimBLEDevice::createClient();
pClient->setClientCallbacks(&clientCB, false);
if (pClient->connect(&device))
{
pClient->secureConnection();
NimBLERemoteService *pService = pClient->getService(serviceUuid);
if (pService != nullptr)
{
NimBLERemoteCharacteristic *pNonSecureCharacteristic = pService->getCharacteristic("1234");
if (pNonSecureCharacteristic != nullptr)
{
// Testing to read a non secured characteristic, you should be able to read this even if you have mismatching passkeys.
std::string value = pNonSecureCharacteristic->readValue();
// print or do whatever you need with the value
Serial.println(value.c_str());
}
NimBLERemoteCharacteristic *pSecureCharacteristic = pService->getCharacteristic("1235");
if (pSecureCharacteristic != nullptr)
{
// Testing to read a secured characteristic, you should be able to read this only if you have matching passkeys, otherwise you should
// get an error like this. E NimBLERemoteCharacteristic: "<< readValue rc=261"
// This means you are trying to do something without the proper permissions.
std::string value = pSecureCharacteristic->readValue();
// print or do whatever you need with the value
Serial.println(value.c_str());
}
}
}
else
{
// failed to connect
Serial.println("failed to connect");
}
NimBLEDevice::deleteClient(pClient);
}
}
}
void loop()
{
}

41
lib/libesp32_div/NimBLE-Arduino/examples/NimBLE_Secure_Server/NimBLE_Secure_Server.ino
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/** NimBLE_Secure_Server Demo:
*
* This example demonstrates the secure passkey protected conenction and communication between an esp32 server and an esp32 client.
* Please note that esp32 stores auth info in nvs memory. After a successful connection it is possible that a passkey change will be ineffective.
* To avoid this clear the memory of the esp32's between security testings. esptool.py is capable of this, example: esptool.py --port /dev/ttyUSB0 erase_flash.
*
* Created: on Jan 08 2021
* Author: mblasee
*/
#include <NimBLEDevice.h>
void setup() {
Serial.begin(115200);
Serial.println("Starting NimBLE Server");
NimBLEDevice::init("NimBLE");
#ifdef ESP_PLATFORM
NimBLEDevice::setPower(ESP_PWR_LVL_P9); /** +9db */
#else
NimBLEDevice::setPower(9); /** +9db */
#endif
NimBLEDevice::setSecurityAuth(true, true, true);
NimBLEDevice::setSecurityPasskey(123456);
NimBLEDevice::setSecurityIOCap(BLE_HS_IO_DISPLAY_ONLY);
NimBLEServer *pServer = NimBLEDevice::createServer();
NimBLEService *pService = pServer->createService("ABCD");
NimBLECharacteristic *pNonSecureCharacteristic = pService->createCharacteristic("1234", NIMBLE_PROPERTY::READ );
NimBLECharacteristic *pSecureCharacteristic = pService->createCharacteristic("1235", NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::READ_AUTHEN);
pService->start();
pNonSecureCharacteristic->setValue("Hello Non Secure BLE");
pSecureCharacteristic->setValue("Hello Secure BLE");
NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
pAdvertising->addServiceUUID("ABCD");
pAdvertising->start();
}
void loop() {
}

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/** NimBLE_Server Demo:
*
* Demonstrates many of the available features of the NimBLE server library.
*
* Created: on March 22 2020
* Author: H2zero
*
*/
#include <NimBLEDevice.h>
static NimBLEServer* pServer;
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class ServerCallbacks: public NimBLEServerCallbacks {
void onConnect(NimBLEServer* pServer) {
Serial.println("Client connected");
Serial.println("Multi-connect support: start advertising");
NimBLEDevice::startAdvertising();
};
/** Alternative onConnect() method to extract details of the connection.
* See: src/ble_gap.h for the details of the ble_gap_conn_desc struct.
*/
void onConnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
Serial.print("Client address: ");
Serial.println(NimBLEAddress(desc->peer_ota_addr).toString().c_str());
/** We can use the connection handle here to ask for different connection parameters.
* Args: connection handle, min connection interval, max connection interval
* latency, supervision timeout.
* Units; Min/Max Intervals: 1.25 millisecond increments.
* Latency: number of intervals allowed to skip.
* Timeout: 10 millisecond increments, try for 5x interval time for best results.
*/
pServer->updateConnParams(desc->conn_handle, 24, 48, 0, 60);
};
void onDisconnect(NimBLEServer* pServer) {
Serial.println("Client disconnected - start advertising");
NimBLEDevice::startAdvertising();
};
void onMTUChange(uint16_t MTU, ble_gap_conn_desc* desc) {
Serial.printf("MTU updated: %u for connection ID: %u\n", MTU, desc->conn_handle);
};
/********************* Security handled here **********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Server Passkey Request");
/** This should return a random 6 digit number for security
* or make your own static passkey as done here.
*/
return 123456;
};
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
/** Return false if passkeys don't match. */
return true;
};
void onAuthenticationComplete(ble_gap_conn_desc* desc){
/** Check that encryption was successful, if not we disconnect the client */
if(!desc->sec_state.encrypted) {
NimBLEDevice::getServer()->disconnect(desc->conn_handle);
Serial.println("Encrypt connection failed - disconnecting client");
return;
}
Serial.println("Starting BLE work!");
};
};
/** Handler class for characteristic actions */
class CharacteristicCallbacks: public NimBLECharacteristicCallbacks {
void onRead(NimBLECharacteristic* pCharacteristic){
Serial.print(pCharacteristic->getUUID().toString().c_str());
Serial.print(": onRead(), value: ");
Serial.println(pCharacteristic->getValue().c_str());
};
void onWrite(NimBLECharacteristic* pCharacteristic) {
Serial.print(pCharacteristic->getUUID().toString().c_str());
Serial.print(": onWrite(), value: ");
Serial.println(pCharacteristic->getValue().c_str());
};
/** Called before notification or indication is sent,
* the value can be changed here before sending if desired.
*/
void onNotify(NimBLECharacteristic* pCharacteristic) {
Serial.println("Sending notification to clients");
};
/** The status returned in status is defined in NimBLECharacteristic.h.
* The value returned in code is the NimBLE host return code.
*/
void onStatus(NimBLECharacteristic* pCharacteristic, Status status, int code) {
String str = ("Notification/Indication status code: ");
str += status;
str += ", return code: ";
str += code;
str += ", ";
str += NimBLEUtils::returnCodeToString(code);
Serial.println(str);
};
void onSubscribe(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc, uint16_t subValue) {
String str = "Client ID: ";
str += desc->conn_handle;
str += " Address: ";
str += std::string(NimBLEAddress(desc->peer_ota_addr)).c_str();
if(subValue == 0) {
str += " Unsubscribed to ";
}else if(subValue == 1) {
str += " Subscribed to notfications for ";
} else if(subValue == 2) {
str += " Subscribed to indications for ";
} else if(subValue == 3) {
str += " Subscribed to notifications and indications for ";
}
str += std::string(pCharacteristic->getUUID()).c_str();
Serial.println(str);
};
};
/** Handler class for descriptor actions */
class DescriptorCallbacks : public NimBLEDescriptorCallbacks {
void onWrite(NimBLEDescriptor* pDescriptor) {
std::string dscVal = pDescriptor->getValue();
Serial.print("Descriptor witten value:");
Serial.println(dscVal.c_str());
};
void onRead(NimBLEDescriptor* pDescriptor) {
Serial.print(pDescriptor->getUUID().toString().c_str());
Serial.println(" Descriptor read");
};
};
/** Define callback instances globally to use for multiple Charateristics \ Descriptors */
static DescriptorCallbacks dscCallbacks;
static CharacteristicCallbacks chrCallbacks;
void setup() {
Serial.begin(115200);
Serial.println("Starting NimBLE Server");
/** sets device name */
NimBLEDevice::init("NimBLE-Arduino");
/** Optional: set the transmit power, default is 3db */
#ifdef ESP_PLATFORM
NimBLEDevice::setPower(ESP_PWR_LVL_P9); /** +9db */
#else
NimBLEDevice::setPower(9); /** +9db */
#endif
/** Set the IO capabilities of the device, each option will trigger a different pairing method.
* BLE_HS_IO_DISPLAY_ONLY - Passkey pairing
* BLE_HS_IO_DISPLAY_YESNO - Numeric comparison pairing
* BLE_HS_IO_NO_INPUT_OUTPUT - DEFAULT setting - just works pairing
*/
//NimBLEDevice::setSecurityIOCap(BLE_HS_IO_DISPLAY_ONLY); // use passkey
//NimBLEDevice::setSecurityIOCap(BLE_HS_IO_DISPLAY_YESNO); //use numeric comparison
/** 2 different ways to set security - both calls achieve the same result.
* no bonding, no man in the middle protection, secure connections.
*
* These are the default values, only shown here for demonstration.
*/
//NimBLEDevice::setSecurityAuth(false, false, true);
NimBLEDevice::setSecurityAuth(/*BLE_SM_PAIR_AUTHREQ_BOND | BLE_SM_PAIR_AUTHREQ_MITM |*/ BLE_SM_PAIR_AUTHREQ_SC);
pServer = NimBLEDevice::createServer();
pServer->setCallbacks(new ServerCallbacks());
NimBLEService* pDeadService = pServer->createService("DEAD");
NimBLECharacteristic* pBeefCharacteristic = pDeadService->createCharacteristic(
"BEEF",
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
/** Require a secure connection for read and write access */
NIMBLE_PROPERTY::READ_ENC | // only allow reading if paired / encrypted
NIMBLE_PROPERTY::WRITE_ENC // only allow writing if paired / encrypted
);
pBeefCharacteristic->setValue("Burger");
pBeefCharacteristic->setCallbacks(&chrCallbacks);
/** 2904 descriptors are a special case, when createDescriptor is called with
* 0x2904 a NimBLE2904 class is created with the correct properties and sizes.
* However we must cast the returned reference to the correct type as the method
* only returns a pointer to the base NimBLEDescriptor class.
*/
NimBLE2904* pBeef2904 = (NimBLE2904*)pBeefCharacteristic->createDescriptor("2904");
pBeef2904->setFormat(NimBLE2904::FORMAT_UTF8);
pBeef2904->setCallbacks(&dscCallbacks);
NimBLEService* pBaadService = pServer->createService("BAAD");
NimBLECharacteristic* pFoodCharacteristic = pBaadService->createCharacteristic(
"F00D",
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY
);
pFoodCharacteristic->setValue("Fries");
pFoodCharacteristic->setCallbacks(&chrCallbacks);
/** Note a 0x2902 descriptor MUST NOT be created as NimBLE will create one automatically
* if notification or indication properties are assigned to a characteristic.
*/
/** Custom descriptor: Arguments are UUID, Properties, max length in bytes of the value */
NimBLEDescriptor* pC01Ddsc = pFoodCharacteristic->createDescriptor(
"C01D",
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE|
NIMBLE_PROPERTY::WRITE_ENC, // only allow writing if paired / encrypted
20
);
pC01Ddsc->setValue("Send it back!");
pC01Ddsc->setCallbacks(&dscCallbacks);
/** Start the services when finished creating all Characteristics and Descriptors */
pDeadService->start();
pBaadService->start();
NimBLEAdvertising* pAdvertising = NimBLEDevice::getAdvertising();
/** Add the services to the advertisment data **/
pAdvertising->addServiceUUID(pDeadService->getUUID());
pAdvertising->addServiceUUID(pBaadService->getUUID());
/** If your device is battery powered you may consider setting scan response
* to false as it will extend battery life at the expense of less data sent.
*/
pAdvertising->setScanResponse(true);
pAdvertising->start();
Serial.println("Advertising Started");
}
void loop() {
/** Do your thing here, this just spams notifications to all connected clients */
if(pServer->getConnectedCount()) {
NimBLEService* pSvc = pServer->getServiceByUUID("BAAD");
if(pSvc) {
NimBLECharacteristic* pChr = pSvc->getCharacteristic("F00D");
if(pChr) {
pChr->notify(true);
}
}
}
delay(2000);
}

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/*
* NimBLE_Server_Whitelist demo
*
* Created May 17, 2021
* Author: h2zero
*/
#include <NimBLEDevice.h>
NimBLECharacteristic* pCharacteristic = nullptr;
bool deviceConnected = false;
bool oldDeviceConnected = false;
uint32_t value = 0;
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
class MyServerCallbacks: public NimBLEServerCallbacks {
void onConnect(NimBLEServer* pServer) {
deviceConnected = true;
};
void onDisconnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
// Peer disconnected, add them to the whitelist
// This allows us to use the whitelist to filter connection attempts
// which will minimize reconnection time.
NimBLEDevice::whiteListAdd(NimBLEAddress(desc->peer_ota_addr));
deviceConnected = false;
}
};
void onAdvComplete(NimBLEAdvertising *pAdvertising) {
Serial.println("Advertising stopped");
if (deviceConnected) {
return;
}
// If advertising timed out without connection start advertising without whitelist filter
pAdvertising->setScanFilter(false,false);
pAdvertising->start();
}
void setup() {
Serial.begin(115200);
// Create the BLE Device
NimBLEDevice::init("ESP32");
// Create the BLE Server
NimBLEServer* pServer = NimBLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks());
pServer->advertiseOnDisconnect(false);
// Create the BLE Service
NimBLEService *pService = pServer->createService(SERVICE_UUID);
// Create a BLE Characteristic
pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY );
// Start the service
pService->start();
// Start advertising
NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
pAdvertising->setScanResponse(false);
pAdvertising->start();
Serial.println("Waiting a client connection to notify...");
}
void loop() {
// notify changed value
if (deviceConnected) {
pCharacteristic->setValue((uint8_t*)&value, 4);
pCharacteristic->notify();
value++;
}
// disconnecting
if (!deviceConnected && oldDeviceConnected) {
NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
if (NimBLEDevice::getWhiteListCount() > 0) {
// Allow anyone to scan but only whitelisted can connect.
pAdvertising->setScanFilter(false,true);
}
// advertise with whitelist for 30 seconds
pAdvertising->start(30, onAdvComplete);
Serial.println("start advertising");
oldDeviceConnected = deviceConnected;
}
// connecting
if (deviceConnected && !oldDeviceConnected) {
// do stuff here on connecting
oldDeviceConnected = deviceConnected;
}
delay(2000);
}

33
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/** NimBLE_Service_Data_Advertiser Demo:
*
* Simple demo of advertising service data that changes every 5 seconds
*
* Created: on February 7 2021
* Author: H2zero
*
*/
#include <NimBLEDevice.h>
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
static NimBLEUUID dataUuid(SERVICE_UUID);
static NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
static uint32_t count = 0;
void setup() {
Serial.begin(115200);
Serial.println("Starting BLE work!");
NimBLEDevice::init("svc data");
}
void loop() {
pAdvertising->stop();
pAdvertising->setServiceData(dataUuid, std::string((char*)&count, sizeof(count)));
pAdvertising->start();
Serial.printf("Advertising count = %d\n", count);
count++;
delay(5000);
}

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/**
* A BLE client example that is rich in capabilities.
* There is a lot new capabilities implemented.
* author unknown
* updated by chegewara
* updated for NimBLE by H2zero
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include "BLEDevice.h"
***********************/
#include "NimBLEDevice.h"
// The remote service we wish to connect to.
static BLEUUID serviceUUID("4fafc201-1fb5-459e-8fcc-c5c9c331914b");
// The characteristic of the remote service we are interested in.
static BLEUUID charUUID("beb5483e-36e1-4688-b7f5-ea07361b26a8");
static boolean doConnect = false;
static boolean connected = false;
static boolean doScan = false;
static BLERemoteCharacteristic* pRemoteCharacteristic;
static BLEAdvertisedDevice* myDevice;
static void notifyCallback(
BLERemoteCharacteristic* pBLERemoteCharacteristic,
uint8_t* pData,
size_t length,
bool isNotify) {
Serial.print("Notify callback for characteristic ");
Serial.print(pBLERemoteCharacteristic->getUUID().toString().c_str());
Serial.print(" of data length ");
Serial.println(length);
Serial.print("data: ");
Serial.println((char*)pData);
}
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class MyClientCallback : public BLEClientCallbacks {
void onConnect(BLEClient* pclient) {
}
void onDisconnect(BLEClient* pclient) {
connected = false;
Serial.println("onDisconnect");
}
/***************** New - Security handled here ********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Client PassKeyRequest");
return 123456;
}
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
return true;
}
void onAuthenticationComplete(ble_gap_conn_desc desc){
Serial.println("Starting BLE work!");
}
/*******************************************************************/
};
bool connectToServer() {
Serial.print("Forming a connection to ");
Serial.println(myDevice->getAddress().toString().c_str());
BLEClient* pClient = BLEDevice::createClient();
Serial.println(" - Created client");
pClient->setClientCallbacks(new MyClientCallback());
// Connect to the remove BLE Server.
pClient->connect(myDevice); // if you pass BLEAdvertisedDevice instead of address, it will be recognized type of peer device address (public or private)
Serial.println(" - Connected to server");
// Obtain a reference to the service we are after in the remote BLE server.
BLERemoteService* pRemoteService = pClient->getService(serviceUUID);
if (pRemoteService == nullptr) {
Serial.print("Failed to find our service UUID: ");
Serial.println(serviceUUID.toString().c_str());
pClient->disconnect();
return false;
}
Serial.println(" - Found our service");
// Obtain a reference to the characteristic in the service of the remote BLE server.
pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID);
if (pRemoteCharacteristic == nullptr) {
Serial.print("Failed to find our characteristic UUID: ");
Serial.println(charUUID.toString().c_str());
pClient->disconnect();
return false;
}
Serial.println(" - Found our characteristic");
// Read the value of the characteristic.
if(pRemoteCharacteristic->canRead()) {
std::string value = pRemoteCharacteristic->readValue();
Serial.print("The characteristic value was: ");
Serial.println(value.c_str());
}
if(pRemoteCharacteristic->canNotify())
pRemoteCharacteristic->registerForNotify(notifyCallback);
connected = true;
return true;
}
/**
* Scan for BLE servers and find the first one that advertises the service we are looking for.
*/
class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
/**
* Called for each advertising BLE server.
*/
/*** Only a reference to the advertised device is passed now
void onResult(BLEAdvertisedDevice advertisedDevice) { **/
void onResult(BLEAdvertisedDevice* advertisedDevice) {
Serial.print("BLE Advertised Device found: ");
Serial.println(advertisedDevice->toString().c_str());
// We have found a device, let us now see if it contains the service we are looking for.
/********************************************************************************
if (advertisedDevice.haveServiceUUID() && advertisedDevice.isAdvertisingService(serviceUUID)) {
********************************************************************************/
if (advertisedDevice->haveServiceUUID() && advertisedDevice->isAdvertisingService(serviceUUID)) {
BLEDevice::getScan()->stop();
/*******************************************************************
myDevice = new BLEAdvertisedDevice(advertisedDevice);
*******************************************************************/
myDevice = advertisedDevice; /** Just save the reference now, no need to copy the object */
doConnect = true;
doScan = true;
} // Found our server
} // onResult
}; // MyAdvertisedDeviceCallbacks
void setup() {
Serial.begin(115200);
Serial.println("Starting Arduino BLE Client application...");
BLEDevice::init("");
// Retrieve a Scanner and set the callback we want to use to be informed when we
// have detected a new device. Specify that we want active scanning and start the
// scan to run for 5 seconds.
BLEScan* pBLEScan = BLEDevice::getScan();
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
pBLEScan->setInterval(1349);
pBLEScan->setWindow(449);
pBLEScan->setActiveScan(true);
pBLEScan->start(5, false);
} // End of setup.
// This is the Arduino main loop function.
void loop() {
// If the flag "doConnect" is true then we have scanned for and found the desired
// BLE Server with which we wish to connect. Now we connect to it. Once we are
// connected we set the connected flag to be true.
if (doConnect == true) {
if (connectToServer()) {
Serial.println("We are now connected to the BLE Server.");
} else {
Serial.println("We have failed to connect to the server; there is nothin more we will do.");
}
doConnect = false;
}
// If we are connected to a peer BLE Server, update the characteristic each time we are reached
// with the current time since boot.
if (connected) {
String newValue = "Time since boot: " + String(millis()/1000);
Serial.println("Setting new characteristic value to \"" + newValue + "\"");
// Set the characteristic's value to be the array of bytes that is actually a string.
/*** Note: write / read value now returns true if successful, false otherwise - try again or disconnect ***/
pRemoteCharacteristic->writeValue(newValue.c_str(), newValue.length());
}else if(doScan){
BLEDevice::getScan()->start(0); // this is just eample to start scan after disconnect, most likely there is better way to do it in arduino
}
delay(1000); // Delay a second between loops.
} // End of loop

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/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
Ported to Arduino ESP32 by pcbreflux
*/
/*
Create a BLE server that will send periodic iBeacon frames.
The design of creating the BLE server is:
1. Create a BLE Server
2. Create advertising data
3. Start advertising.
4. wait
5. Stop advertising.
6. deep sleep
*/
/** NimBLE differences highlighted in comment blocks **/
#include "sys/time.h"
/*******original********
#include "BLEDevice.h"
#include "BLEUtils.h"
#include "BLEBeacon.h"
***********************/
#include "NimBLEDevice.h"
#include "NimBLEBeacon.h"
#include "esp_sleep.h"
#define GPIO_DEEP_SLEEP_DURATION 10 // sleep x seconds and then wake up
RTC_DATA_ATTR static time_t last; // remember last boot in RTC Memory
RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
#ifdef __cplusplus
extern "C" {
#endif
uint8_t temprature_sens_read();
//uint8_t g_phyFuns;
#ifdef __cplusplus
}
#endif
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
BLEAdvertising *pAdvertising;
struct timeval now;
#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d" // UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
void setBeacon() {
BLEBeacon oBeacon = BLEBeacon();
oBeacon.setManufacturerId(0x4C00); // fake Apple 0x004C LSB (ENDIAN_CHANGE_U16!)
oBeacon.setProximityUUID(BLEUUID(BEACON_UUID));
oBeacon.setMajor((bootcount & 0xFFFF0000) >> 16);
oBeacon.setMinor(bootcount&0xFFFF);
BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
oAdvertisementData.setFlags(0x04); // BR_EDR_NOT_SUPPORTED 0x04
std::string strServiceData = "";
strServiceData += (char)26; // Len
strServiceData += (char)0xFF; // Type
strServiceData += oBeacon.getData();
oAdvertisementData.addData(strServiceData);
pAdvertising->setAdvertisementData(oAdvertisementData);
pAdvertising->setScanResponseData(oScanResponseData);
/** pAdvertising->setAdvertisementType(ADV_TYPE_NONCONN_IND);
* Advertising mode. Can be one of following constants:
* - BLE_GAP_CONN_MODE_NON (non-connectable; 3.C.9.3.2).
* - BLE_GAP_CONN_MODE_DIR (directed-connectable; 3.C.9.3.3).
* - BLE_GAP_CONN_MODE_UND (undirected-connectable; 3.C.9.3.4).
*/
pAdvertising->setAdvertisementType(BLE_GAP_CONN_MODE_NON);
}
void setup() {
Serial.begin(115200);
gettimeofday(&now, NULL);
Serial.printf("start ESP32 %d\n",bootcount++);
Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n",now.tv_sec,now.tv_sec-last);
last = now.tv_sec;
// Create the BLE Device
BLEDevice::init("");
// Create the BLE Server
// BLEServer *pServer = BLEDevice::createServer(); // <-- no longer required to instantiate BLEServer, less flash and ram usage
pAdvertising = BLEDevice::getAdvertising();
setBeacon();
// Start advertising
pAdvertising->start();
Serial.println("Advertizing started...");
delay(100);
pAdvertising->stop();
Serial.printf("enter deep sleep\n");
esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
Serial.printf("in deep sleep\n");
}
void loop() {
}

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/*
Video: https://www.youtube.com/watch?v=oCMOYS71NIU
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
Ported to Arduino ESP32 by Evandro Copercini
updated by chegewara
Create a BLE server that, once we receive a connection, will send periodic notifications.
The service advertises itself as: 4fafc201-1fb5-459e-8fcc-c5c9c331914b
And has a characteristic of: beb5483e-36e1-4688-b7f5-ea07361b26a8
The design of creating the BLE server is:
1. Create a BLE Server
2. Create a BLE Service
3. Create a BLE Characteristic on the Service
4. Create a BLE Descriptor on the characteristic
5. Start the service.
6. Start advertising.
A connect hander associated with the server starts a background task that performs notification
every couple of seconds.
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
***********************/
#include <NimBLEDevice.h>
BLEServer* pServer = NULL;
BLECharacteristic* pCharacteristic = NULL;
bool deviceConnected = false;
bool oldDeviceConnected = false;
uint32_t value = 0;
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class MyServerCallbacks: public BLEServerCallbacks {
void onConnect(BLEServer* pServer) {
deviceConnected = true;
};
void onDisconnect(BLEServer* pServer) {
deviceConnected = false;
}
/***************** New - Security handled here ********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Server PassKeyRequest");
return 123456;
}
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
return true;
}
void onAuthenticationComplete(ble_gap_conn_desc desc){
Serial.println("Starting BLE work!");
}
/*******************************************************************/
};
void setup() {
Serial.begin(115200);
// Create the BLE Device
BLEDevice::init("ESP32");
// Create the BLE Server
pServer = BLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks());
// Create the BLE Service
BLEService *pService = pServer->createService(SERVICE_UUID);
// Create a BLE Characteristic
pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
/******* Enum Type NIMBLE_PROPERTY now *******
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE |
BLECharacteristic::PROPERTY_NOTIFY |
BLECharacteristic::PROPERTY_INDICATE
);
**********************************************/
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY |
NIMBLE_PROPERTY::INDICATE
);
// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
// Create a BLE Descriptor
/***************************************************
NOTE: DO NOT create a 2902 descriptor.
it will be created automatically if notifications
or indications are enabled on a characteristic.
pCharacteristic->addDescriptor(new BLE2902());
****************************************************/
// Start the service
pService->start();
// Start advertising
BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
pAdvertising->setScanResponse(false);
/** Note, this could be left out as that is the default value */
pAdvertising->setMinPreferred(0x0); // set value to 0x00 to not advertise this parameter
BLEDevice::startAdvertising();
Serial.println("Waiting a client connection to notify...");
}
void loop() {
// notify changed value
if (deviceConnected) {
pCharacteristic->setValue((uint8_t*)&value, 4);
pCharacteristic->notify();
value++;
delay(3); // bluetooth stack will go into congestion, if too many packets are sent, in 6 hours test i was able to go as low as 3ms
}
// disconnecting
if (!deviceConnected && oldDeviceConnected) {
delay(500); // give the bluetooth stack the chance to get things ready
pServer->startAdvertising(); // restart advertising
Serial.println("start advertising");
oldDeviceConnected = deviceConnected;
}
// connecting
if (deviceConnected && !oldDeviceConnected) {
// do stuff here on connecting
oldDeviceConnected = deviceConnected;
}
}

49
lib/libesp32_div/NimBLE-Arduino/examples/Refactored_original_examples/BLE_scan/BLE_scan.ino
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/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
Ported to Arduino ESP32 by Evandro Copercini
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>
***********************/
#include <NimBLEDevice.h>
int scanTime = 5; //In seconds
BLEScan* pBLEScan;
class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
/*** Only a reference to the advertised device is passed now
void onResult(BLEAdvertisedDevice advertisedDevice) { **/
void onResult(BLEAdvertisedDevice* advertisedDevice) {
/** Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str()); **/
Serial.printf("Advertised Device: %s \n", advertisedDevice->toString().c_str());
}
};
void setup() {
Serial.begin(115200);
Serial.println("Scanning...");
BLEDevice::init("");
pBLEScan = BLEDevice::getScan(); //create new scan
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
pBLEScan->setInterval(100);
pBLEScan->setWindow(99); // less or equal setInterval value
}
void loop() {
// put your main code here, to run repeatedly:
BLEScanResults foundDevices = pBLEScan->start(scanTime, false);
Serial.print("Devices found: ");
Serial.println(foundDevices.getCount());
Serial.println("Scan done!");
pBLEScan->clearResults(); // delete results fromBLEScan buffer to release memory
delay(2000);
}

57
lib/libesp32_div/NimBLE-Arduino/examples/Refactored_original_examples/BLE_server/BLE_server.ino
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/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleServer.cpp
Ported to Arduino ESP32 by Evandro Copercini
updates by chegewara
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEServer.h>
***********************/
#include <NimBLEDevice.h>
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
void setup() {
Serial.begin(115200);
Serial.println("Starting BLE work!");
BLEDevice::init("Long name works now");
BLEServer *pServer = BLEDevice::createServer();
BLEService *pService = pServer->createService(SERVICE_UUID);
BLECharacteristic *pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
/***** Enum Type NIMBLE_PROPERTY now *****
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE
);
*****************************************/
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE
);
pCharacteristic->setValue("Hello World says Neil");
pService->start();
// BLEAdvertising *pAdvertising = pServer->getAdvertising(); // this still is working for backward compatibility
BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
pAdvertising->setScanResponse(true);
pAdvertising->setMinPreferred(0x06); // functions that help with iPhone connections issue
pAdvertising->setMaxPreferred(0x12);
BLEDevice::startAdvertising();
Serial.println("Characteristic defined! Now you can read it in your phone!");
}
void loop() {
// put your main code here, to run repeatedly:
delay(2000);
}

150
lib/libesp32_div/NimBLE-Arduino/examples/Refactored_original_examples/BLE_server_multiconnect/BLE_server_multiconnect.ino
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/*
Video: https://www.youtube.com/watch?v=oCMOYS71NIU
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
Ported to Arduino ESP32 by Evandro Copercini
updated by chegewara
Create a BLE server that, once we receive a connection, will send periodic notifications.
The service advertises itself as: 4fafc201-1fb5-459e-8fcc-c5c9c331914b
And has a characteristic of: beb5483e-36e1-4688-b7f5-ea07361b26a8
The design of creating the BLE server is:
1. Create a BLE Server
2. Create a BLE Service
3. Create a BLE Characteristic on the Service
4. Create a BLE Descriptor on the characteristic
5. Start the service.
6. Start advertising.
A connect hander associated with the server starts a background task that performs notification
every couple of seconds.
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
***********************/
#include <NimBLEDevice.h>
BLEServer* pServer = NULL;
BLECharacteristic* pCharacteristic = NULL;
bool deviceConnected = false;
bool oldDeviceConnected = false;
uint32_t value = 0;
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class MyServerCallbacks: public BLEServerCallbacks {
void onConnect(BLEServer* pServer) {
deviceConnected = true;
BLEDevice::startAdvertising();
};
void onDisconnect(BLEServer* pServer) {
deviceConnected = false;
}
/***************** New - Security handled here ********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Server PassKeyRequest");
return 123456;
}
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
return true;
}
void onAuthenticationComplete(ble_gap_conn_desc desc){
Serial.println("Starting BLE work!");
}
/*******************************************************************/
};
void setup() {
Serial.begin(115200);
// Create the BLE Device
BLEDevice::init("ESP32");
// Create the BLE Server
pServer = BLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks());
// Create the BLE Service
BLEService *pService = pServer->createService(SERVICE_UUID);
// Create a BLE Characteristic
pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
/******* Enum Type NIMBLE_PROPERTY now *******
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE |
BLECharacteristic::PROPERTY_NOTIFY |
BLECharacteristic::PROPERTY_INDICATE
);
**********************************************/
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE |
NIMBLE_PROPERTY::NOTIFY |
NIMBLE_PROPERTY::INDICATE
);
// https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
// Create a BLE Descriptor
/***************************************************
NOTE: DO NOT create a 2902 descriptor
it will be created automatically if notifications
or indications are enabled on a characteristic.
pCharacteristic->addDescriptor(new BLE2902());
****************************************************/
// Start the service
pService->start();
// Start advertising
BLEAdvertising *pAdvertising = BLEDevice::getAdvertising();
pAdvertising->addServiceUUID(SERVICE_UUID);
pAdvertising->setScanResponse(false);
/** Note, this could be left out as that is the default value */
pAdvertising->setMinPreferred(0x0); // set value to 0x00 to not advertise this parameter
BLEDevice::startAdvertising();
Serial.println("Waiting a client connection to notify...");
}
void loop() {
// notify changed value
if (deviceConnected) {
pCharacteristic->setValue((uint8_t*)&value, 4);
pCharacteristic->notify();
value++;
delay(10); // bluetooth stack will go into congestion, if too many packets are sent, in 6 hours test i was able to go as low as 3ms
}
// disconnecting
if (!deviceConnected && oldDeviceConnected) {
delay(500); // give the bluetooth stack the chance to get things ready
pServer->startAdvertising(); // restart advertising
Serial.println("start advertising");
oldDeviceConnected = deviceConnected;
}
// connecting
if (deviceConnected && !oldDeviceConnected) {
// do stuff here on connecting
oldDeviceConnected = deviceConnected;
}
}

163
lib/libesp32_div/NimBLE-Arduino/examples/Refactored_original_examples/BLE_uart/BLE_uart.ino
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/*
Video: https://www.youtube.com/watch?v=oCMOYS71NIU
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
Ported to Arduino ESP32 by Evandro Copercini
Create a BLE server that, once we receive a connection, will send periodic notifications.
The service advertises itself as: 6E400001-B5A3-F393-E0A9-E50E24DCCA9E
Has a characteristic of: 6E400002-B5A3-F393-E0A9-E50E24DCCA9E - used for receiving data with "WRITE"
Has a characteristic of: 6E400003-B5A3-F393-E0A9-E50E24DCCA9E - used to send data with "NOTIFY"
The design of creating the BLE server is:
1. Create a BLE Server
2. Create a BLE Service
3. Create a BLE Characteristic on the Service
4. Create a BLE Descriptor on the characteristic
5. Start the service.
6. Start advertising.
In this example rxValue is the data received (only accessible inside that function).
And txValue is the data to be sent, in this example just a byte incremented every second.
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>
***********************/
#include <NimBLEDevice.h>
BLEServer *pServer = NULL;
BLECharacteristic * pTxCharacteristic;
bool deviceConnected = false;
bool oldDeviceConnected = false;
uint8_t txValue = 0;
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID
#define CHARACTERISTIC_UUID_RX "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"
#define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"
/** None of these are required as they will be handled by the library with defaults. **
** Remove as you see fit for your needs */
class MyServerCallbacks: public BLEServerCallbacks {
void onConnect(BLEServer* pServer) {
deviceConnected = true;
};
void onDisconnect(BLEServer* pServer) {
deviceConnected = false;
}
/***************** New - Security handled here ********************
****** Note: these are the same return values as defaults ********/
uint32_t onPassKeyRequest(){
Serial.println("Server PassKeyRequest");
return 123456;
}
bool onConfirmPIN(uint32_t pass_key){
Serial.print("The passkey YES/NO number: ");Serial.println(pass_key);
return true;
}
void onAuthenticationComplete(ble_gap_conn_desc desc){
Serial.println("Starting BLE work!");
}
/*******************************************************************/
};
class MyCallbacks: public BLECharacteristicCallbacks {
void onWrite(BLECharacteristic *pCharacteristic) {
std::string rxValue = pCharacteristic->getValue();
if (rxValue.length() > 0) {
Serial.println("*********");
Serial.print("Received Value: ");
for (int i = 0; i < rxValue.length(); i++)
Serial.print(rxValue[i]);
Serial.println();
Serial.println("*********");
}
}
};
void setup() {
Serial.begin(115200);
// Create the BLE Device
BLEDevice::init("UART Service");
// Create the BLE Server
pServer = BLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks());
// Create the BLE Service
BLEService *pService = pServer->createService(SERVICE_UUID);
// Create a BLE Characteristic
pTxCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID_TX,
/******* Enum Type NIMBLE_PROPERTY now *******
BLECharacteristic::PROPERTY_NOTIFY
);
**********************************************/
NIMBLE_PROPERTY::NOTIFY
);
/***************************************************
NOTE: DO NOT create a 2902 descriptor
it will be created automatically if notifications
or indications are enabled on a characteristic.
pCharacteristic->addDescriptor(new BLE2902());
****************************************************/
BLECharacteristic * pRxCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID_RX,
/******* Enum Type NIMBLE_PROPERTY now *******
BLECharacteristic::PROPERTY_WRITE
);
*********************************************/
NIMBLE_PROPERTY::WRITE
);
pRxCharacteristic->setCallbacks(new MyCallbacks());
// Start the service
pService->start();
// Start advertising
pServer->getAdvertising()->start();
Serial.println("Waiting a client connection to notify...");
}
void loop() {
if (deviceConnected) {
pTxCharacteristic->setValue(&txValue, 1);
pTxCharacteristic->notify();
txValue++;
delay(10); // bluetooth stack will go into congestion, if too many packets are sent
}
// disconnecting
if (!deviceConnected && oldDeviceConnected) {
delay(500); // give the bluetooth stack the chance to get things ready
pServer->startAdvertising(); // restart advertising
Serial.println("start advertising");
oldDeviceConnected = deviceConnected;
}
// connecting
if (deviceConnected && !oldDeviceConnected) {
// do stuff here on connecting
oldDeviceConnected = deviceConnected;
}
}

75
lib/libesp32_div/NimBLE-Arduino/examples/Refactored_original_examples/BLE_write/BLE_write.ino
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/*
Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleWrite.cpp
Ported to Arduino ESP32 by Evandro Copercini
*/
/** NimBLE differences highlighted in comment blocks **/
/*******original********
#include <BLEDevice.h>
#include <BLEUtils.h>
#include <BLEServer.h>
***********************/
#include <NimBLEDevice.h>
// See the following for generating UUIDs:
// https://www.uuidgenerator.net/
#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
class MyCallbacks: public BLECharacteristicCallbacks {
void onWrite(BLECharacteristic *pCharacteristic) {
std::string value = pCharacteristic->getValue();
if (value.length() > 0) {
Serial.println("*********");
Serial.print("New value: ");
for (int i = 0; i < value.length(); i++)
Serial.print(value[i]);
Serial.println();
Serial.println("*********");
}
}
};
void setup() {
Serial.begin(115200);
Serial.println("1- Download and install an BLE scanner app in your phone");
Serial.println("2- Scan for BLE devices in the app");
Serial.println("3- Connect to MyESP32");
Serial.println("4- Go to CUSTOM CHARACTERISTIC in CUSTOM SERVICE and write something");
Serial.println("5- See the magic =)");
BLEDevice::init("MyESP32");
BLEServer *pServer = BLEDevice::createServer();
BLEService *pService = pServer->createService(SERVICE_UUID);
BLECharacteristic *pCharacteristic = pService->createCharacteristic(
CHARACTERISTIC_UUID,
/***** Enum Type NIMBLE_PROPERTY now *****
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE
);
*****************************************/
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE
);
pCharacteristic->setCallbacks(new MyCallbacks());
pCharacteristic->setValue("Hello World");
pService->start();
BLEAdvertising *pAdvertising = pServer->getAdvertising();
pAdvertising->start();
}
void loop() {
// put your main code here, to run repeatedly:
delay(2000);
}

8
lib/libesp32_div/NimBLE-Arduino/library.json
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{
"name": "NimBLE-Arduino",
"keywords": "esp32, bluetooth",
"description": "Bluetooth low energy (BLE) library for arduino-esp32 based on NimBLE",
"version": "1.4.1",
"frameworks": "arduino",
"platforms": "espressif32"
}

10
lib/libesp32_div/NimBLE-Arduino/library.properties
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name=NimBLE-Arduino
version=1.4.1
author=h2zero
maintainer=h2zero <powellperalta@gmail.com>
sentence=Bluetooth low energy (BLE) library for arduino-esp32 based on NimBLE.
paragraph=This is a more updated and lower resource alternative to the original bluedroid BLE library for esp32. Uses 50% less flash space and approximately 100KB less ram with the same functionality. Nearly 100% compatible with existing application code, migration guide included.
url=https://github.com/h2zero/NimBLE-Arduino
category=Communication
architectures=esp32,arm-ble
includes=NimBLEDevice.h

402
lib/libesp32_div/NimBLE-Arduino/src/HIDKeyboardTypes.h
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/* Copyright (c) 2015 mbed.org, MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Note: this file was pulled from different parts of the USBHID library, in mbed SDK
*/
#ifndef KEYBOARD_DEFS_H
#define KEYBOARD_DEFS_H
#define REPORT_ID_KEYBOARD 1
#define REPORT_ID_VOLUME 3
/* Modifiers */
enum MODIFIER_KEY {
KEY_CTRL = 1,
KEY_SHIFT = 2,
KEY_ALT = 4,
};
enum MEDIA_KEY {
KEY_NEXT_TRACK, /*!< next Track Button */
KEY_PREVIOUS_TRACK, /*!< Previous track Button */
KEY_STOP, /*!< Stop Button */
KEY_PLAY_PAUSE, /*!< Play/Pause Button */
KEY_MUTE, /*!< Mute Button */
KEY_VOLUME_UP, /*!< Volume Up Button */
KEY_VOLUME_DOWN, /*!< Volume Down Button */
};
enum FUNCTION_KEY {
KEY_F1 = 128, /* F1 key */
KEY_F2, /* F2 key */
KEY_F3, /* F3 key */
KEY_F4, /* F4 key */
KEY_F5, /* F5 key */
KEY_F6, /* F6 key */
KEY_F7, /* F7 key */
KEY_F8, /* F8 key */
KEY_F9, /* F9 key */
KEY_F10, /* F10 key */
KEY_F11, /* F11 key */
KEY_F12, /* F12 key */
KEY_PRINT_SCREEN, /* Print Screen key */
KEY_SCROLL_LOCK, /* Scroll lock */
KEY_CAPS_LOCK, /* caps lock */
KEY_NUM_LOCK, /* num lock */
KEY_INSERT, /* Insert key */
KEY_HOME, /* Home key */
KEY_PAGE_UP, /* Page Up key */
KEY_PAGE_DOWN, /* Page Down key */
RIGHT_ARROW, /* Right arrow */
LEFT_ARROW, /* Left arrow */
DOWN_ARROW, /* Down arrow */
UP_ARROW, /* Up arrow */
};
typedef struct {
unsigned char usage;
unsigned char modifier;
} KEYMAP;
#ifdef US_KEYBOARD
/* US keyboard (as HID standard) */
#define KEYMAP_SIZE (152)
const KEYMAP keymap[KEYMAP_SIZE] = {
{0, 0}, /* NUL */
{0, 0}, /* SOH */
{0, 0}, /* STX */
{0, 0}, /* ETX */
{0, 0}, /* EOT */
{0, 0}, /* ENQ */
{0, 0}, /* ACK */
{0, 0}, /* BEL */
{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */
{0x2b, 0}, /* TAB */ /* Keyboard Tab */
{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */
{0, 0}, /* VT */
{0, 0}, /* FF */
{0, 0}, /* CR */
{0, 0}, /* SO */
{0, 0}, /* SI */
{0, 0}, /* DEL */
{0, 0}, /* DC1 */
{0, 0}, /* DC2 */
{0, 0}, /* DC3 */
{0, 0}, /* DC4 */
{0, 0}, /* NAK */
{0, 0}, /* SYN */
{0, 0}, /* ETB */
{0, 0}, /* CAN */
{0, 0}, /* EM */
{0, 0}, /* SUB */
{0, 0}, /* ESC */
{0, 0}, /* FS */
{0, 0}, /* GS */
{0, 0}, /* RS */
{0, 0}, /* US */
{0x2c, 0}, /* */
{0x1e, KEY_SHIFT}, /* ! */
{0x34, KEY_SHIFT}, /* " */
{0x20, KEY_SHIFT}, /* # */
{0x21, KEY_SHIFT}, /* $ */
{0x22, KEY_SHIFT}, /* % */
{0x24, KEY_SHIFT}, /* & */
{0x34, 0}, /* ' */
{0x26, KEY_SHIFT}, /* ( */
{0x27, KEY_SHIFT}, /* ) */
{0x25, KEY_SHIFT}, /* * */
{0x2e, KEY_SHIFT}, /* + */
{0x36, 0}, /* , */
{0x2d, 0}, /* - */
{0x37, 0}, /* . */
{0x38, 0}, /* / */
{0x27, 0}, /* 0 */
{0x1e, 0}, /* 1 */
{0x1f, 0}, /* 2 */
{0x20, 0}, /* 3 */
{0x21, 0}, /* 4 */
{0x22, 0}, /* 5 */
{0x23, 0}, /* 6 */
{0x24, 0}, /* 7 */
{0x25, 0}, /* 8 */
{0x26, 0}, /* 9 */
{0x33, KEY_SHIFT}, /* : */
{0x33, 0}, /* ; */
{0x36, KEY_SHIFT}, /* < */
{0x2e, 0}, /* = */
{0x37, KEY_SHIFT}, /* > */
{0x38, KEY_SHIFT}, /* ? */
{0x1f, KEY_SHIFT}, /* @ */
{0x04, KEY_SHIFT}, /* A */
{0x05, KEY_SHIFT}, /* B */
{0x06, KEY_SHIFT}, /* C */
{0x07, KEY_SHIFT}, /* D */
{0x08, KEY_SHIFT}, /* E */
{0x09, KEY_SHIFT}, /* F */
{0x0a, KEY_SHIFT}, /* G */
{0x0b, KEY_SHIFT}, /* H */
{0x0c, KEY_SHIFT}, /* I */
{0x0d, KEY_SHIFT}, /* J */
{0x0e, KEY_SHIFT}, /* K */
{0x0f, KEY_SHIFT}, /* L */
{0x10, KEY_SHIFT}, /* M */
{0x11, KEY_SHIFT}, /* N */
{0x12, KEY_SHIFT}, /* O */
{0x13, KEY_SHIFT}, /* P */
{0x14, KEY_SHIFT}, /* Q */
{0x15, KEY_SHIFT}, /* R */
{0x16, KEY_SHIFT}, /* S */
{0x17, KEY_SHIFT}, /* T */
{0x18, KEY_SHIFT}, /* U */
{0x19, KEY_SHIFT}, /* V */
{0x1a, KEY_SHIFT}, /* W */
{0x1b, KEY_SHIFT}, /* X */
{0x1c, KEY_SHIFT}, /* Y */
{0x1d, KEY_SHIFT}, /* Z */
{0x2f, 0}, /* [ */
{0x31, 0}, /* \ */
{0x30, 0}, /* ] */
{0x23, KEY_SHIFT}, /* ^ */
{0x2d, KEY_SHIFT}, /* _ */
{0x35, 0}, /* ` */
{0x04, 0}, /* a */
{0x05, 0}, /* b */
{0x06, 0}, /* c */
{0x07, 0}, /* d */
{0x08, 0}, /* e */
{0x09, 0}, /* f */
{0x0a, 0}, /* g */
{0x0b, 0}, /* h */
{0x0c, 0}, /* i */
{0x0d, 0}, /* j */
{0x0e, 0}, /* k */
{0x0f, 0}, /* l */
{0x10, 0}, /* m */
{0x11, 0}, /* n */
{0x12, 0}, /* o */
{0x13, 0}, /* p */
{0x14, 0}, /* q */
{0x15, 0}, /* r */
{0x16, 0}, /* s */
{0x17, 0}, /* t */
{0x18, 0}, /* u */
{0x19, 0}, /* v */
{0x1a, 0}, /* w */
{0x1b, 0}, /* x */
{0x1c, 0}, /* y */
{0x1d, 0}, /* z */
{0x2f, KEY_SHIFT}, /* { */
{0x31, KEY_SHIFT}, /* | */
{0x30, KEY_SHIFT}, /* } */
{0x35, KEY_SHIFT}, /* ~ */
{0,0}, /* DEL */
{0x3a, 0}, /* F1 */
{0x3b, 0}, /* F2 */
{0x3c, 0}, /* F3 */
{0x3d, 0}, /* F4 */
{0x3e, 0}, /* F5 */
{0x3f, 0}, /* F6 */
{0x40, 0}, /* F7 */
{0x41, 0}, /* F8 */
{0x42, 0}, /* F9 */
{0x43, 0}, /* F10 */
{0x44, 0}, /* F11 */
{0x45, 0}, /* F12 */
{0x46, 0}, /* PRINT_SCREEN */
{0x47, 0}, /* SCROLL_LOCK */
{0x39, 0}, /* CAPS_LOCK */
{0x53, 0}, /* NUM_LOCK */
{0x49, 0}, /* INSERT */
{0x4a, 0}, /* HOME */
{0x4b, 0}, /* PAGE_UP */
{0x4e, 0}, /* PAGE_DOWN */
{0x4f, 0}, /* RIGHT_ARROW */
{0x50, 0}, /* LEFT_ARROW */
{0x51, 0}, /* DOWN_ARROW */
{0x52, 0}, /* UP_ARROW */
};
#else
/* UK keyboard */
#define KEYMAP_SIZE (152)
const KEYMAP keymap[KEYMAP_SIZE] = {
{0, 0}, /* NUL */
{0, 0}, /* SOH */
{0, 0}, /* STX */
{0, 0}, /* ETX */
{0, 0}, /* EOT */
{0, 0}, /* ENQ */
{0, 0}, /* ACK */
{0, 0}, /* BEL */
{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */
{0x2b, 0}, /* TAB */ /* Keyboard Tab */
{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */
{0, 0}, /* VT */
{0, 0}, /* FF */
{0, 0}, /* CR */
{0, 0}, /* SO */
{0, 0}, /* SI */
{0, 0}, /* DEL */
{0, 0}, /* DC1 */
{0, 0}, /* DC2 */
{0, 0}, /* DC3 */
{0, 0}, /* DC4 */
{0, 0}, /* NAK */
{0, 0}, /* SYN */
{0, 0}, /* ETB */
{0, 0}, /* CAN */
{0, 0}, /* EM */
{0, 0}, /* SUB */
{0, 0}, /* ESC */
{0, 0}, /* FS */
{0, 0}, /* GS */
{0, 0}, /* RS */
{0, 0}, /* US */
{0x2c, 0}, /* */
{0x1e, KEY_SHIFT}, /* ! */
{0x1f, KEY_SHIFT}, /* " */
{0x32, 0}, /* # */
{0x21, KEY_SHIFT}, /* $ */
{0x22, KEY_SHIFT}, /* % */
{0x24, KEY_SHIFT}, /* & */
{0x34, 0}, /* ' */
{0x26, KEY_SHIFT}, /* ( */
{0x27, KEY_SHIFT}, /* ) */
{0x25, KEY_SHIFT}, /* * */
{0x2e, KEY_SHIFT}, /* + */
{0x36, 0}, /* , */
{0x2d, 0}, /* - */
{0x37, 0}, /* . */
{0x38, 0}, /* / */
{0x27, 0}, /* 0 */
{0x1e, 0}, /* 1 */
{0x1f, 0}, /* 2 */
{0x20, 0}, /* 3 */
{0x21, 0}, /* 4 */
{0x22, 0}, /* 5 */
{0x23, 0}, /* 6 */
{0x24, 0}, /* 7 */
{0x25, 0}, /* 8 */
{0x26, 0}, /* 9 */
{0x33, KEY_SHIFT}, /* : */
{0x33, 0}, /* ; */
{0x36, KEY_SHIFT}, /* < */
{0x2e, 0}, /* = */
{0x37, KEY_SHIFT}, /* > */
{0x38, KEY_SHIFT}, /* ? */
{0x34, KEY_SHIFT}, /* @ */
{0x04, KEY_SHIFT}, /* A */
{0x05, KEY_SHIFT}, /* B */
{0x06, KEY_SHIFT}, /* C */
{0x07, KEY_SHIFT}, /* D */
{0x08, KEY_SHIFT}, /* E */
{0x09, KEY_SHIFT}, /* F */
{0x0a, KEY_SHIFT}, /* G */
{0x0b, KEY_SHIFT}, /* H */
{0x0c, KEY_SHIFT}, /* I */
{0x0d, KEY_SHIFT}, /* J */
{0x0e, KEY_SHIFT}, /* K */
{0x0f, KEY_SHIFT}, /* L */
{0x10, KEY_SHIFT}, /* M */
{0x11, KEY_SHIFT}, /* N */
{0x12, KEY_SHIFT}, /* O */
{0x13, KEY_SHIFT}, /* P */
{0x14, KEY_SHIFT}, /* Q */
{0x15, KEY_SHIFT}, /* R */
{0x16, KEY_SHIFT}, /* S */
{0x17, KEY_SHIFT}, /* T */
{0x18, KEY_SHIFT}, /* U */
{0x19, KEY_SHIFT}, /* V */
{0x1a, KEY_SHIFT}, /* W */
{0x1b, KEY_SHIFT}, /* X */
{0x1c, KEY_SHIFT}, /* Y */
{0x1d, KEY_SHIFT}, /* Z */
{0x2f, 0}, /* [ */
{0x64, 0}, /* \ */
{0x30, 0}, /* ] */
{0x23, KEY_SHIFT}, /* ^ */
{0x2d, KEY_SHIFT}, /* _ */
{0x35, 0}, /* ` */
{0x04, 0}, /* a */
{0x05, 0}, /* b */
{0x06, 0}, /* c */
{0x07, 0}, /* d */
{0x08, 0}, /* e */
{0x09, 0}, /* f */
{0x0a, 0}, /* g */
{0x0b, 0}, /* h */
{0x0c, 0}, /* i */
{0x0d, 0}, /* j */
{0x0e, 0}, /* k */
{0x0f, 0}, /* l */
{0x10, 0}, /* m */
{0x11, 0}, /* n */
{0x12, 0}, /* o */
{0x13, 0}, /* p */
{0x14, 0}, /* q */
{0x15, 0}, /* r */
{0x16, 0}, /* s */
{0x17, 0}, /* t */
{0x18, 0}, /* u */
{0x19, 0}, /* v */
{0x1a, 0}, /* w */
{0x1b, 0}, /* x */
{0x1c, 0}, /* y */
{0x1d, 0}, /* z */
{0x2f, KEY_SHIFT}, /* { */
{0x64, KEY_SHIFT}, /* | */
{0x30, KEY_SHIFT}, /* } */
{0x32, KEY_SHIFT}, /* ~ */
{0,0}, /* DEL */
{0x3a, 0}, /* F1 */
{0x3b, 0}, /* F2 */
{0x3c, 0}, /* F3 */
{0x3d, 0}, /* F4 */
{0x3e, 0}, /* F5 */
{0x3f, 0}, /* F6 */
{0x40, 0}, /* F7 */
{0x41, 0}, /* F8 */
{0x42, 0}, /* F9 */
{0x43, 0}, /* F10 */
{0x44, 0}, /* F11 */
{0x45, 0}, /* F12 */
{0x46, 0}, /* PRINT_SCREEN */
{0x47, 0}, /* SCROLL_LOCK */
{0x39, 0}, /* CAPS_LOCK */
{0x53, 0}, /* NUM_LOCK */
{0x49, 0}, /* INSERT */
{0x4a, 0}, /* HOME */
{0x4b, 0}, /* PAGE_UP */
{0x4e, 0}, /* PAGE_DOWN */
{0x4f, 0}, /* RIGHT_ARROW */
{0x50, 0}, /* LEFT_ARROW */
{0x51, 0}, /* DOWN_ARROW */
{0x52, 0}, /* UP_ARROW */
};
#endif
#endif

91
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@ -1,91 +0,0 @@
/* Copyright (c) 2010-2011 mbed.org, MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef USBCLASS_HID_TYPES
#define USBCLASS_HID_TYPES
#include <stdint.h>
/* */
#define HID_VERSION_1_11 (0x0111)
/* HID Class */
#define HID_CLASS (3)
#define HID_SUBCLASS_NONE (0)
#define HID_PROTOCOL_NONE (0)
/* Descriptors */
#define HID_DESCRIPTOR (33)
#define HID_DESCRIPTOR_LENGTH (0x09)
#define REPORT_DESCRIPTOR (34)
/* Class requests */
#define GET_REPORT (0x1)
#define GET_IDLE (0x2)
#define SET_REPORT (0x9)
#define SET_IDLE (0xa)
/* HID Class Report Descriptor */
/* Short items: size is 0, 1, 2 or 3 specifying 0, 1, 2 or 4 (four) bytes */
/* of data as per HID Class standard */
/* Main items */
#define HIDINPUT(size) (0x80 | size)
#define HIDOUTPUT(size) (0x90 | size)
#define FEATURE(size) (0xb0 | size)
#define COLLECTION(size) (0xa0 | size)
#define END_COLLECTION(size) (0xc0 | size)
/* Global items */
#define USAGE_PAGE(size) (0x04 | size)
#define LOGICAL_MINIMUM(size) (0x14 | size)
#define LOGICAL_MAXIMUM(size) (0x24 | size)
#define PHYSICAL_MINIMUM(size) (0x34 | size)
#define PHYSICAL_MAXIMUM(size) (0x44 | size)
#define UNIT_EXPONENT(size) (0x54 | size)
#define UNIT(size) (0x64 | size)
#define REPORT_SIZE(size) (0x74 | size) //bits
#define REPORT_ID(size) (0x84 | size)
#define REPORT_COUNT(size) (0x94 | size) //bytes
#define PUSH(size) (0xa4 | size)
#define POP(size) (0xb4 | size)
/* Local items */
#define USAGE(size) (0x08 | size)
#define USAGE_MINIMUM(size) (0x18 | size)
#define USAGE_MAXIMUM(size) (0x28 | size)
#define DESIGNATOR_INDEX(size) (0x38 | size)
#define DESIGNATOR_MINIMUM(size) (0x48 | size)
#define DESIGNATOR_MAXIMUM(size) (0x58 | size)
#define STRING_INDEX(size) (0x78 | size)
#define STRING_MINIMUM(size) (0x88 | size)
#define STRING_MAXIMUM(size) (0x98 | size)
#define DELIMITER(size) (0xa8 | size)
/* HID Report */
/* Where report IDs are used the first byte of 'data' will be the */
/* report ID and 'length' will include this report ID byte. */
#define MAX_HID_REPORT_SIZE (64)
typedef struct {
uint32_t length;
uint8_t data[MAX_HID_REPORT_SIZE];
} HID_REPORT;
#endif

86
lib/libesp32_div/NimBLE-Arduino/src/NimBLE2904.cpp
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@ -1,86 +0,0 @@
/*
* NimBLE2904.cpp
*
* Created: on March 13, 2020
* Author H2zero
*
* Originally:
*
* BLE2904.cpp
*
* Created on: Dec 23, 2017
* Author: kolban
*/
/*
* See also:
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLE2904.h"
NimBLE2904::NimBLE2904(NimBLECharacteristic* pCharacteristic)
: NimBLEDescriptor(NimBLEUUID((uint16_t) 0x2904),
BLE_GATT_CHR_F_READ,
sizeof(BLE2904_Data),
pCharacteristic)
{
m_data.m_format = 0;
m_data.m_exponent = 0;
m_data.m_namespace = 1; // 1 = Bluetooth SIG Assigned Numbers
m_data.m_unit = 0;
m_data.m_description = 0;
setValue((uint8_t*) &m_data, sizeof(m_data));
} // BLE2904
/**
* @brief Set the description.
*/
void NimBLE2904::setDescription(uint16_t description) {
m_data.m_description = description;
setValue((uint8_t*) &m_data, sizeof(m_data));
}
/**
* @brief Set the exponent.
*/
void NimBLE2904::setExponent(int8_t exponent) {
m_data.m_exponent = exponent;
setValue((uint8_t*) &m_data, sizeof(m_data));
} // setExponent
/**
* @brief Set the format.
*/
void NimBLE2904::setFormat(uint8_t format) {
m_data.m_format = format;
setValue((uint8_t*) &m_data, sizeof(m_data));
} // setFormat
/**
* @brief Set the namespace.
*/
void NimBLE2904::setNamespace(uint8_t namespace_value) {
m_data.m_namespace = namespace_value;
setValue((uint8_t*) &m_data, sizeof(m_data));
} // setNamespace
/**
* @brief Set the units for this value. It should be one of the encoded values defined here:
* https://www.bluetooth.com/specifications/assigned-numbers/units
* @param [in] unit The type of units of this characteristic as defined by assigned numbers.
*/
void NimBLE2904::setUnit(uint16_t unit) {
m_data.m_unit = unit;
setValue((uint8_t*) &m_data, sizeof(m_data));
} // setUnit
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

83
lib/libesp32_div/NimBLE-Arduino/src/NimBLE2904.h
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@ -1,83 +0,0 @@
/*
* NimBLE2904.h
*
* Created: on March 13, 2020
* Author H2zero
*
* Originally:
*
* BLE2904.h
*
* Created on: Dec 23, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLE2904_H_
#define MAIN_NIMBLE2904_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEDescriptor.h"
struct BLE2904_Data {
uint8_t m_format;
int8_t m_exponent;
uint16_t m_unit; // See https://www.bluetooth.com/specifications/assigned-numbers/units
uint8_t m_namespace;
uint16_t m_description;
} __attribute__((packed));
/**
* @brief Descriptor for Characteristic Presentation Format.
*
* This is a convenience descriptor for the Characteristic Presentation Format which has a UUID of 0x2904.
*
* See also:
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
*/
class NimBLE2904: public NimBLEDescriptor {
public:
NimBLE2904(NimBLECharacteristic* pCharacterisitic = nullptr);
static const uint8_t FORMAT_BOOLEAN = 1;
static const uint8_t FORMAT_UINT2 = 2;
static const uint8_t FORMAT_UINT4 = 3;
static const uint8_t FORMAT_UINT8 = 4;
static const uint8_t FORMAT_UINT12 = 5;
static const uint8_t FORMAT_UINT16 = 6;
static const uint8_t FORMAT_UINT24 = 7;
static const uint8_t FORMAT_UINT32 = 8;
static const uint8_t FORMAT_UINT48 = 9;
static const uint8_t FORMAT_UINT64 = 10;
static const uint8_t FORMAT_UINT128 = 11;
static const uint8_t FORMAT_SINT8 = 12;
static const uint8_t FORMAT_SINT12 = 13;
static const uint8_t FORMAT_SINT16 = 14;
static const uint8_t FORMAT_SINT24 = 15;
static const uint8_t FORMAT_SINT32 = 16;
static const uint8_t FORMAT_SINT48 = 17;
static const uint8_t FORMAT_SINT64 = 18;
static const uint8_t FORMAT_SINT128 = 19;
static const uint8_t FORMAT_FLOAT32 = 20;
static const uint8_t FORMAT_FLOAT64 = 21;
static const uint8_t FORMAT_SFLOAT16 = 22;
static const uint8_t FORMAT_SFLOAT32 = 23;
static const uint8_t FORMAT_IEEE20601 = 24;
static const uint8_t FORMAT_UTF8 = 25;
static const uint8_t FORMAT_UTF16 = 26;
static const uint8_t FORMAT_OPAQUE = 27;
void setDescription(uint16_t);
void setExponent(int8_t exponent);
void setFormat(uint8_t format);
void setNamespace(uint8_t namespace_value);
void setUnit(uint16_t unit);
private:
friend class NimBLECharacteristic;
BLE2904_Data m_data;
}; // BLE2904
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */
#endif /* MAIN_NIMBLE2904_H_ */

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lib/libesp32_div/NimBLE-Arduino/src/NimBLEAddress.cpp
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/*
* NimBLEAddress.cpp
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEAddress.cpp
*
* Created on: Jul 2, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include <algorithm>
#include "NimBLEAddress.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
static const char* LOG_TAG = "NimBLEAddress";
/*************************************************
* NOTE: NimBLE address bytes are in INVERSE ORDER!
* We will accomodate that fact in these methods.
*************************************************/
/**
* @brief Create an address from the native NimBLE representation.
* @param [in] address The native NimBLE address.
*/
NimBLEAddress::NimBLEAddress(ble_addr_t address) {
memcpy(m_address, address.val, 6);
m_addrType = address.type;
} // NimBLEAddress
/**
* @brief Create a blank address, i.e. 00:00:00:00:00:00, type 0.
*/
NimBLEAddress::NimBLEAddress() {
NimBLEAddress("");
} // NimBLEAddress
/**
* @brief Create an address from a hex string
*
* A hex string is of the format:
* ```
* 00:00:00:00:00:00
* ```
* which is 17 characters in length.
*
* @param [in] stringAddress The hex string representation of the address.
* @param [in] type The type of the address.
*/
NimBLEAddress::NimBLEAddress(const std::string &stringAddress, uint8_t type) {
m_addrType = type;
if (stringAddress.length() == 0) {
memset(m_address, 0, 6);
return;
}
if (stringAddress.length() == 6) {
std::reverse_copy(stringAddress.data(), stringAddress.data() + 6, m_address);
return;
}
if (stringAddress.length() != 17) {
memset(m_address, 0, sizeof m_address); // "00:00:00:00:00:00" represents an invalid address
NIMBLE_LOGD(LOG_TAG, "Invalid address '%s'", stringAddress.c_str());
return;
}
int data[6];
if(sscanf(stringAddress.c_str(), "%x:%x:%x:%x:%x:%x", &data[5], &data[4], &data[3], &data[2], &data[1], &data[0]) != 6) {
memset(m_address, 0, sizeof m_address); // "00:00:00:00:00:00" represents an invalid address
NIMBLE_LOGD(LOG_TAG, "Invalid address '%s'", stringAddress.c_str());
}
for(size_t index = 0; index < sizeof m_address; index++) {
m_address[index] = data[index];
}
} // NimBLEAddress
/**
* @brief Constructor for compatibility with bluedroid esp library using native ESP representation.
* @param [in] address A uint8_t[6] or esp_bd_addr_t containing the address.
* @param [in] type The type of the address.
*/
NimBLEAddress::NimBLEAddress(uint8_t address[6], uint8_t type) {
std::reverse_copy(address, address + sizeof m_address, m_address);
m_addrType = type;
} // NimBLEAddress
/**
* @brief Constructor for address using a hex value.\n
* Use the same byte order, so use 0xa4c1385def16 for "a4:c1:38:5d:ef:16"
* @param [in] address uint64_t containing the address.
* @param [in] type The type of the address.
*/
NimBLEAddress::NimBLEAddress(const uint64_t &address, uint8_t type) {
memcpy(m_address, &address, sizeof m_address);
m_addrType = type;
} // NimBLEAddress
/**
* @brief Determine if this address equals another.
* @param [in] otherAddress The other address to compare against.
* @return True if the addresses are equal.
*/
bool NimBLEAddress::equals(const NimBLEAddress &otherAddress) const {
return *this == otherAddress;
} // equals
/**
* @brief Get the native representation of the address.
* @return a pointer to the uint8_t[6] array of the address.
*/
const uint8_t *NimBLEAddress::getNative() const {
return m_address;
} // getNative
/**
* @brief Get the address type.
* @return The address type.
*/
uint8_t NimBLEAddress::getType() const {
return m_addrType;
} // getType
/**
* @brief Convert a BLE address to a string.
*
* A string representation of an address is in the format:
*
* ```
* xx:xx:xx:xx:xx:xx
* ```
*
* @return The string representation of the address.
* @deprecated Use std::string() operator instead.
*/
std::string NimBLEAddress::toString() const {
return std::string(*this);
} // toString
/**
* @brief Convenience operator to check if this address is equal to another.
*/
bool NimBLEAddress::operator ==(const NimBLEAddress & rhs) const {
return memcmp(rhs.m_address, m_address, sizeof m_address) == 0;
} // operator ==
/**
* @brief Convenience operator to check if this address is not equal to another.
*/
bool NimBLEAddress::operator !=(const NimBLEAddress & rhs) const {
return !this->operator==(rhs);
} // operator !=
/**
* @brief Convienience operator to convert this address to string representation.
* @details This allows passing NimBLEAddress to functions
* that accept std::string and/or or it's methods as a parameter.
*/
NimBLEAddress::operator std::string() const {
char buffer[18];
snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x",
m_address[5], m_address[4], m_address[3],
m_address[2], m_address[1], m_address[0]);
return std::string(buffer);
} // operator std::string
/**
* @brief Convenience operator to convert the native address representation to uint_64.
*/
NimBLEAddress::operator uint64_t() const {
uint64_t address = 0;
memcpy(&address, m_address, sizeof m_address);
return address;
} // operator uint64_t
#endif

62
lib/libesp32_div/NimBLE-Arduino/src/NimBLEAddress.h
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@ -1,62 +0,0 @@
/*
* NimBLEAddress.h
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEAddress.h
*
* Created on: Jul 2, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEADDRESS_H_
#define COMPONENTS_NIMBLEADDRESS_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "nimble/ble.h"
#else
#include "nimble/nimble/include/nimble/ble.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include <string>
#include <algorithm>
/**
* @brief A %BLE device address.
*
* Every %BLE device has a unique address which can be used to identify it and form connections.
*/
class NimBLEAddress {
public:
NimBLEAddress();
NimBLEAddress(ble_addr_t address);
NimBLEAddress(uint8_t address[6], uint8_t type = BLE_ADDR_PUBLIC);
NimBLEAddress(const std::string &stringAddress, uint8_t type = BLE_ADDR_PUBLIC);
NimBLEAddress(const uint64_t &address, uint8_t type = BLE_ADDR_PUBLIC);
bool equals(const NimBLEAddress &otherAddress) const;
const uint8_t* getNative() const;
std::string toString() const;
uint8_t getType() const;
bool operator ==(const NimBLEAddress & rhs) const;
bool operator !=(const NimBLEAddress & rhs) const;
operator std::string() const;
operator uint64_t() const;
private:
uint8_t m_address[6];
uint8_t m_addrType;
};
#endif /* CONFIG_BT_ENABLED */
#endif /* COMPONENTS_NIMBLEADDRESS_H_ */

864
lib/libesp32_div/NimBLE-Arduino/src/NimBLEAdvertisedDevice.cpp
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@ -1,864 +0,0 @@
/*
* NimBLEAdvertisedDevice.cpp
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEAdvertisedDevice.cpp
*
* Created on: Jul 3, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
#include "NimBLEDevice.h"
#include "NimBLEAdvertisedDevice.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
#include <climits>
static const char* LOG_TAG = "NimBLEAdvertisedDevice";
/**
* @brief Constructor
*/
NimBLEAdvertisedDevice::NimBLEAdvertisedDevice() :
m_payload(62,0)
{
m_advType = 0;
m_rssi = -9999;
m_callbackSent = false;
m_timestamp = 0;
m_advLength = 0;
} // NimBLEAdvertisedDevice
/**
* @brief Get the address of the advertising device.
* @return The address of the advertised device.
*/
NimBLEAddress NimBLEAdvertisedDevice::getAddress() {
return m_address;
} // getAddress
/**
* @brief Get the advertisement type.
* @return The advertising type the device is reporting:
* * BLE_HCI_ADV_TYPE_ADV_IND (0) - indirect advertising
* * BLE_HCI_ADV_TYPE_ADV_DIRECT_IND_HD (1) - direct advertising - high duty cycle
* * BLE_HCI_ADV_TYPE_ADV_SCAN_IND (2) - indirect scan response
* * BLE_HCI_ADV_TYPE_ADV_NONCONN_IND (3) - indirect advertising - not connectable
* * BLE_HCI_ADV_TYPE_ADV_DIRECT_IND_LD (4) - direct advertising - low duty cycle
*/
uint8_t NimBLEAdvertisedDevice::getAdvType() {
return m_advType;
} // getAdvType
/**
* @brief Get the appearance.
*
* A %BLE device can declare its own appearance. The appearance is how it would like to be shown to an end user
* typically in the form of an icon.
*
* @return The appearance of the advertised device.
*/
uint16_t NimBLEAdvertisedDevice::getAppearance() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_APPEARANCE, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length == BLE_HS_ADV_APPEARANCE_LEN + 1) {
return *field->value | *(field->value + 1) << 8;
}
}
return 0;
} // getAppearance
/**
* @brief Get the advertisement interval.
* @return The advertisement interval in 0.625ms units.
*/
uint16_t NimBLEAdvertisedDevice::getAdvInterval() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_ADV_ITVL, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length == BLE_HS_ADV_ADV_ITVL_LEN + 1) {
return *field->value | *(field->value + 1) << 8;
}
}
return 0;
} // getAdvInterval
/**
* @brief Get the preferred min connection interval.
* @return The preferred min connection interval in 1.25ms units.
*/
uint16_t NimBLEAdvertisedDevice::getMinInterval() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length == BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN + 1) {
return *field->value | *(field->value + 1) << 8;
}
}
return 0;
} // getMinInterval
/**
* @brief Get the preferred max connection interval.
* @return The preferred max connection interval in 1.25ms units.
*/
uint16_t NimBLEAdvertisedDevice::getMaxInterval() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length == BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN + 1) {
return *(field->value + 2) | *(field->value + 3) << 8;
}
}
return 0;
} // getMaxInterval
/**
* @brief Get the manufacturer data.
* @return The manufacturer data of the advertised device.
*/
std::string NimBLEAdvertisedDevice::getManufacturerData() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_MFG_DATA, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length > 1) {
return std::string((char*)field->value, field->length - 1);
}
}
return "";
} // getManufacturerData
/**
* @brief Get the URI from the advertisement.
* @return The URI data.
*/
std::string NimBLEAdvertisedDevice::getURI() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_URI, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length > 1) {
return std::string((char*)field->value, field->length - 1);
}
}
return "";
} // getURI
/**
* @brief Get the advertised name.
* @return The name of the advertised device.
*/
std::string NimBLEAdvertisedDevice::getName() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_COMP_NAME, 0, &data_loc) > 0 ||
findAdvField(BLE_HS_ADV_TYPE_INCOMP_NAME, 0, &data_loc) > 0)
{
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length > 1) {
return std::string((char*)field->value, field->length - 1);
}
}
return "";
} // getName
/**
* @brief Get the RSSI.
* @return The RSSI of the advertised device.
*/
int NimBLEAdvertisedDevice::getRSSI() {
return m_rssi;
} // getRSSI
/**
* @brief Get the scan object that created this advertised device.
* @return The scan object.
*/
NimBLEScan* NimBLEAdvertisedDevice::getScan() {
return NimBLEDevice::getScan();
} // getScan
/**
* @brief Get the number of target addresses.
* @return The number of addresses.
*/
uint8_t NimBLEAdvertisedDevice::getTargetAddressCount() {
uint8_t count = 0;
count = findAdvField(BLE_HS_ADV_TYPE_PUBLIC_TGT_ADDR);
count += findAdvField(BLE_HS_ADV_TYPE_RANDOM_TGT_ADDR);
return count;
}
/**
* @brief Get the target address at the index.
* @param [in] index The index of the target address.
* @return The target address.
*/
NimBLEAddress NimBLEAdvertisedDevice::getTargetAddress(uint8_t index) {
ble_hs_adv_field *field = nullptr;
uint8_t count = 0;
size_t data_loc = ULONG_MAX;
index++;
count = findAdvField(BLE_HS_ADV_TYPE_PUBLIC_TGT_ADDR, index, &data_loc);
if (count < index) {
index -= count;
count = findAdvField(BLE_HS_ADV_TYPE_RANDOM_TGT_ADDR, index, &data_loc);
}
if(count > 0 && data_loc != ULONG_MAX) {
field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length < index * BLE_HS_ADV_PUBLIC_TGT_ADDR_ENTRY_LEN) {
index -= count - field->length / BLE_HS_ADV_PUBLIC_TGT_ADDR_ENTRY_LEN;
}
if(field->length > index * BLE_HS_ADV_PUBLIC_TGT_ADDR_ENTRY_LEN) {
return NimBLEAddress(field->value + (index - 1) * BLE_HS_ADV_PUBLIC_TGT_ADDR_ENTRY_LEN);
}
}
return NimBLEAddress("");
}
/**
* @brief Get the service data.
* @param [in] index The index of the service data requested.
* @return The advertised service data or empty string if no data.
*/
std::string NimBLEAdvertisedDevice::getServiceData(uint8_t index) {
ble_hs_adv_field *field = nullptr;
uint8_t bytes;
size_t data_loc = findServiceData(index, &bytes);
if(data_loc != ULONG_MAX) {
field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length > bytes) {
return std::string((char*)(field->value + bytes), field->length - bytes - 1);
}
}
return "";
} //getServiceData
/**
* @brief Get the service data.
* @param [in] uuid The uuid of the service data requested.
* @return The advertised service data or empty string if no data.
*/
std::string NimBLEAdvertisedDevice::getServiceData(const NimBLEUUID &uuid) {
ble_hs_adv_field *field = nullptr;
uint8_t bytes;
uint8_t index = 0;
size_t data_loc = findServiceData(index, &bytes);
size_t plSize = m_payload.size() - 2;
uint8_t uuidBytes = uuid.bitSize() / 8;
while(data_loc < plSize) {
field = (ble_hs_adv_field *)&m_payload[data_loc];
if(bytes == uuidBytes && NimBLEUUID(field->value, bytes, false) == uuid) {
return std::string((char*)(field->value + bytes), field->length - bytes - 1);
}
index++;
data_loc = findServiceData(index, &bytes);
}
NIMBLE_LOGI(LOG_TAG, "No service data found");
return "";
} //getServiceData
/**
* @brief Get the UUID of the service data at the index.
* @param [in] index The index of the service data UUID requested.
* @return The advertised service data UUID or an empty UUID if not found.
*/
NimBLEUUID NimBLEAdvertisedDevice::getServiceDataUUID(uint8_t index) {
ble_hs_adv_field *field = nullptr;
uint8_t bytes;
size_t data_loc = findServiceData(index, &bytes);
if(data_loc != ULONG_MAX) {
field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length >= bytes) {
return NimBLEUUID(field->value, bytes, false);
}
}
return NimBLEUUID("");
} // getServiceDataUUID
/**
* @brief Find the service data at the index.
* @param [in] index The index of the service data to find.
* @param [in] bytes A pointer to storage for the number of the bytes in the UUID.
* @return The index in the vector where the data is located, ULONG_MAX if not found.
*/
size_t NimBLEAdvertisedDevice::findServiceData(uint8_t index, uint8_t *bytes) {
size_t data_loc = 0;
uint8_t found = 0;
*bytes = 0;
index++;
found = findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID16, index, &data_loc);
if(found == index) {
*bytes = 2;
return data_loc;
}
index -= found;
found = findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID32, index, &data_loc);
if(found == index) {
*bytes = 4;
return data_loc;
}
index -= found;
found = findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID128, index, &data_loc);
if(found == index) {
*bytes = 16;
return data_loc;
}
return ULONG_MAX;
}
/**
* @brief Get the count of advertised service data UUIDS
* @return The number of service data UUIDS in the vector.
*/
uint8_t NimBLEAdvertisedDevice::getServiceDataCount() {
uint8_t count = 0;
count += findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID16);
count += findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID32);
count += findAdvField(BLE_HS_ADV_TYPE_SVC_DATA_UUID128);
return count;
} // getServiceDataCount
/**
* @brief Get the Service UUID.
* @param [in] index The index of the service UUID requested.
* @return The Service UUID of the advertised service, or an empty UUID if not found.
*/
NimBLEUUID NimBLEAdvertisedDevice::getServiceUUID(uint8_t index) {
uint8_t count = 0;
size_t data_loc = 0;
uint8_t uuidBytes = 0;
uint8_t type = BLE_HS_ADV_TYPE_INCOMP_UUIDS16;
ble_hs_adv_field *field = nullptr;
index++;
do {
count = findAdvField(type, index, &data_loc);
if(count >= index) {
if(type < BLE_HS_ADV_TYPE_INCOMP_UUIDS32) {
uuidBytes = 2;
} else if(type < BLE_HS_ADV_TYPE_INCOMP_UUIDS128) {
uuidBytes = 4;
} else {
uuidBytes = 16;
}
break;
} else {
type++;
index -= count;
}
} while(type <= BLE_HS_ADV_TYPE_COMP_UUIDS128);
if(uuidBytes > 0) {
field = (ble_hs_adv_field *)&m_payload[data_loc];
// In the case of more than one field of service uuid's we need to adjust
// the index to account for the uuids of the previous fields.
if(field->length < index * uuidBytes) {
index -= count - field->length / uuidBytes;
}
if(field->length > uuidBytes * index) {
return NimBLEUUID(field->value + uuidBytes * (index - 1), uuidBytes, false);
}
}
return NimBLEUUID("");
} // getServiceUUID
/**
* @brief Get the number of services advertised
* @return The count of services in the advertising packet.
*/
uint8_t NimBLEAdvertisedDevice::getServiceUUIDCount() {
uint8_t count = 0;
count += findAdvField(BLE_HS_ADV_TYPE_INCOMP_UUIDS16);
count += findAdvField(BLE_HS_ADV_TYPE_COMP_UUIDS16);
count += findAdvField(BLE_HS_ADV_TYPE_INCOMP_UUIDS32);
count += findAdvField(BLE_HS_ADV_TYPE_COMP_UUIDS32);
count += findAdvField(BLE_HS_ADV_TYPE_INCOMP_UUIDS128);
count += findAdvField(BLE_HS_ADV_TYPE_COMP_UUIDS128);
return count;
} // getServiceUUIDCount
/**
* @brief Check advertised services for existence of the required UUID
* @param [in] uuid The service uuid to look for in the advertisement.
* @return Return true if service is advertised
*/
bool NimBLEAdvertisedDevice::isAdvertisingService(const NimBLEUUID &uuid) {
size_t count = getServiceUUIDCount();
for(size_t i = 0; i < count; i++) {
if(uuid == getServiceUUID(i)) {
return true;
}
}
return false;
} // isAdvertisingService
/**
* @brief Get the TX Power.
* @return The TX Power of the advertised device.
*/
int8_t NimBLEAdvertisedDevice::getTXPower() {
size_t data_loc = 0;
if(findAdvField(BLE_HS_ADV_TYPE_TX_PWR_LVL, 0, &data_loc) > 0) {
ble_hs_adv_field *field = (ble_hs_adv_field *)&m_payload[data_loc];
if(field->length == BLE_HS_ADV_TX_PWR_LVL_LEN + 1) {
return *(int8_t*)field->value;
}
}
return -99;
} // getTXPower
/**
* @brief Does this advertisement have preferred connection parameters?
* @return True if connection parameters are present.
*/
bool NimBLEAdvertisedDevice::haveConnParams() {
return findAdvField(BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE) > 0;
} // haveConnParams
/**
* @brief Does this advertisement have have the advertising interval?
* @return True if the advertisement interval is present.
*/
bool NimBLEAdvertisedDevice::haveAdvInterval() {
return findAdvField(BLE_HS_ADV_TYPE_ADV_ITVL) > 0;
} // haveAdvInterval
/**
* @brief Does this advertisement have an appearance value?
* @return True if there is an appearance value present.
*/
bool NimBLEAdvertisedDevice::haveAppearance() {
return findAdvField(BLE_HS_ADV_TYPE_APPEARANCE) > 0;
} // haveAppearance
/**
* @brief Does this advertisement have manufacturer data?
* @return True if there is manufacturer data present.
*/
bool NimBLEAdvertisedDevice::haveManufacturerData() {
return findAdvField(BLE_HS_ADV_TYPE_MFG_DATA) > 0;
} // haveManufacturerData
/**
* @brief Does this advertisement have a URI?
* @return True if there is a URI present.
*/
bool NimBLEAdvertisedDevice::haveURI() {
return findAdvField(BLE_HS_ADV_TYPE_URI) > 0;
} // haveURI
/**
* @brief Does the advertisement contain a target address?
* @return True if an address is present.
*/
bool NimBLEAdvertisedDevice::haveTargetAddress() {
return findAdvField(BLE_HS_ADV_TYPE_PUBLIC_TGT_ADDR) > 0 ||
findAdvField(BLE_HS_ADV_TYPE_RANDOM_TGT_ADDR) > 0;
}
/**
* @brief Does this advertisement have a name value?
* @return True if there is a name value present.
*/
bool NimBLEAdvertisedDevice::haveName() {
return findAdvField(BLE_HS_ADV_TYPE_COMP_NAME) > 0 ||
findAdvField(BLE_HS_ADV_TYPE_INCOMP_NAME) > 0;
} // haveName
/**
* @brief Does this advertisement have a signal strength value?
* @return True if there is a signal strength value present.
*/
bool NimBLEAdvertisedDevice::haveRSSI() {
return m_rssi != -9999;
} // haveRSSI
/**
* @brief Does this advertisement have a service data value?
* @return True if there is a service data value present.
*/
bool NimBLEAdvertisedDevice::haveServiceData() {
return getServiceDataCount() > 0;
} // haveServiceData
/**
* @brief Does this advertisement have a service UUID value?
* @return True if there is a service UUID value present.
*/
bool NimBLEAdvertisedDevice::haveServiceUUID() {
return getServiceUUIDCount() > 0;
} // haveServiceUUID
/**
* @brief Does this advertisement have a transmission power value?
* @return True if there is a transmission power value present.
*/
bool NimBLEAdvertisedDevice::haveTXPower() {
return findAdvField(BLE_HS_ADV_TYPE_TX_PWR_LVL) > 0;
} // haveTXPower
#if CONFIG_BT_NIMBLE_EXT_ADV
/**
* @brief Get the set ID of the extended advertisement.
* @return The set ID.
*/
uint8_t NimBLEAdvertisedDevice::getSetId() {
return m_sid;
} // getSetId
/**
* @brief Get the primary PHY used by this advertisement.
* @return The PHY type, one of:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_CODED
*/
uint8_t NimBLEAdvertisedDevice::getPrimaryPhy() {
return m_primPhy;
} // getPrimaryPhy
/**
* @brief Get the primary PHY used by this advertisement.
* @return The PHY type, one of:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_2M
* * BLE_HCI_LE_PHY_CODED
*/
uint8_t NimBLEAdvertisedDevice::getSecondaryPhy() {
return m_secPhy;
} // getSecondaryPhy
/**
* @brief Get the periodic interval of the advertisement.
* @return The periodic advertising interval, 0 if not periodic advertising.
*/
uint16_t NimBLEAdvertisedDevice::getPeriodicInterval() {
return m_periodicItvl;
} // getPeriodicInterval
#endif
uint8_t NimBLEAdvertisedDevice::findAdvField(uint8_t type, uint8_t index, size_t * data_loc) {
ble_hs_adv_field *field = nullptr;
size_t length = m_payload.size();
size_t data = 0;
uint8_t count = 0;
if (length < 3) {
return count;
}
while (length > 2) {
field = (ble_hs_adv_field*)&m_payload[data];
if (field->length >= length) {
return count;
}
if (field->type == type) {
switch (type) {
case BLE_HS_ADV_TYPE_INCOMP_UUIDS16:
case BLE_HS_ADV_TYPE_COMP_UUIDS16:
count += field->length / 2;
break;
case BLE_HS_ADV_TYPE_INCOMP_UUIDS32:
case BLE_HS_ADV_TYPE_COMP_UUIDS32:
count += field->length / 4;
break;
case BLE_HS_ADV_TYPE_INCOMP_UUIDS128:
case BLE_HS_ADV_TYPE_COMP_UUIDS128:
count += field->length / 16;
break;
case BLE_HS_ADV_TYPE_PUBLIC_TGT_ADDR:
case BLE_HS_ADV_TYPE_RANDOM_TGT_ADDR:
count += field->length / 6;
break;
default:
count++;
break;
}
if (data_loc != nullptr) {
if (index == 0 || count >= index) {
break;
}
}
}
length -= 1 + field->length;
data += 1 + field->length;
}
if (data_loc != nullptr && field != nullptr) {
*data_loc = data;
}
return count;
}
/**
* @brief Set the address of the advertised device.
* @param [in] address The address of the advertised device.
*/
void NimBLEAdvertisedDevice::setAddress(NimBLEAddress address) {
m_address = address;
} // setAddress
/**
* @brief Set the adFlag for this device.
* @param [in] advType The advertisement flag data from the advertisement.
*/
void NimBLEAdvertisedDevice::setAdvType(uint8_t advType, bool isLegacyAdv) {
m_advType = advType;
#if CONFIG_BT_NIMBLE_EXT_ADV
m_isLegacyAdv = isLegacyAdv;
#else
(void)isLegacyAdv;
#endif
} // setAdvType
/**
* @brief Set the RSSI for this device.
* @param [in] rssi The RSSI of the discovered device.
*/
void NimBLEAdvertisedDevice::setRSSI(int rssi) {
m_rssi = rssi;
} // setRSSI
/**
* @brief Create a string representation of this device.
* @return A string representation of this device.
*/
std::string NimBLEAdvertisedDevice::toString() {
std::string res = "Name: " + getName() + ", Address: " + getAddress().toString();
if (haveAppearance()) {
char val[6];
snprintf(val, sizeof(val), "%d", getAppearance());
res += ", appearance: ";
res += val;
}
if (haveManufacturerData()) {
char *pHex = NimBLEUtils::buildHexData(nullptr, (uint8_t*)getManufacturerData().data(), getManufacturerData().length());
res += ", manufacturer data: ";
res += pHex;
free(pHex);
}
if (haveServiceUUID()) {
res += ", serviceUUID: " + getServiceUUID().toString();
}
if (haveTXPower()) {
char val[5];
snprintf(val, sizeof(val), "%d", getTXPower());
res += ", txPower: ";
res += val;
}
if (haveServiceData()) {
uint8_t count = getServiceDataCount();
res += "\nService Data:";
for(uint8_t i = 0; i < count; i++) {
res += "\nUUID: " + std::string(getServiceDataUUID(i));
res += ", Data: " + getServiceData(i);
}
}
return res;
} // toString
/**
* @brief Get the payload advertised by the device.
* @return The advertisement payload.
*/
uint8_t* NimBLEAdvertisedDevice::getPayload() {
return &m_payload[0];
} // getPayload
/**
* @brief Stores the payload of the advertised device in a vector.
* @param [in] payload The advertisement payload.
* @param [in] length The length of the payload in bytes.
* @param [in] append Indicates if the the data should be appended (scan response).
*/
void NimBLEAdvertisedDevice::setPayload(const uint8_t *payload, uint8_t length, bool append) {
if(!append) {
m_advLength = length;
m_payload.assign(payload, payload + length);
} else {
m_payload.insert(m_payload.end(), payload, payload + length);
}
}
/**
* @brief Get the length of the advertisement data in the payload.
* @return The number of bytes in the payload that is from the advertisement.
*/
uint8_t NimBLEAdvertisedDevice::getAdvLength() {
return m_advLength;
}
/**
* @brief Get the advertised device address type.
* @return The device address type:
* * BLE_ADDR_PUBLIC (0x00)
* * BLE_ADDR_RANDOM (0x01)
* * BLE_ADDR_PUBLIC_ID (0x02)
* * BLE_ADDR_RANDOM_ID (0x03)
*/
uint8_t NimBLEAdvertisedDevice::getAddressType() {
return m_address.getType();
} // getAddressType
/**
* @brief Get the timeStamp of when the device last advertised.
* @return The timeStamp of when the device was last seen.
*/
time_t NimBLEAdvertisedDevice::getTimestamp() {
return m_timestamp;
} // getTimestamp
/**
* @brief Get the length of the payload advertised by the device.
* @return The size of the payload in bytes.
*/
size_t NimBLEAdvertisedDevice::getPayloadLength() {
return m_payload.size();
} // getPayloadLength
/**
* @brief Check if this device is advertising as connectable.
* @return True if the device is connectable.
*/
bool NimBLEAdvertisedDevice::isConnectable() {
#if CONFIG_BT_NIMBLE_EXT_ADV
if (m_isLegacyAdv) {
return m_advType == BLE_HCI_ADV_RPT_EVTYPE_ADV_IND ||
m_advType == BLE_HCI_ADV_RPT_EVTYPE_DIR_IND;
}
#endif
return (m_advType & BLE_HCI_ADV_CONN_MASK) ||
(m_advType & BLE_HCI_ADV_DIRECT_MASK);
} // isConnectable
/**
* @brief Check if this advertisement is a legacy or extended type
* @return True if legacy (Bluetooth 4.x), false if extended (bluetooth 5.x).
*/
bool NimBLEAdvertisedDevice::isLegacyAdvertisement() {
#if CONFIG_BT_NIMBLE_EXT_ADV
return m_isLegacyAdv;
# else
return true;
#endif
} // isLegacyAdvertisement
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */

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/*
* NimBLEAdvertisedDevice.h
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEAdvertisedDevice.h
*
* Created on: Jul 3, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEADVERTISEDDEVICE_H_
#define COMPONENTS_NIMBLEADVERTISEDDEVICE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
#include "NimBLEAddress.h"
#include "NimBLEScan.h"
#include "NimBLEUUID.h"
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_hs_adv.h"
#else
#include "nimble/nimble/host/include/host/ble_hs_adv.h"
#endif
#include <map>
#include <vector>
#include <time.h>
class NimBLEScan;
/**
* @brief A representation of a %BLE advertised device found by a scan.
*
* When we perform a %BLE scan, the result will be a set of devices that are advertising. This
* class provides a model of a detected device.
*/
class NimBLEAdvertisedDevice {
public:
NimBLEAdvertisedDevice();
NimBLEAddress getAddress();
uint8_t getAdvType();
uint16_t getAppearance();
uint16_t getAdvInterval();
uint16_t getMinInterval();
uint16_t getMaxInterval();
std::string getManufacturerData();
std::string getURI();
/**
* @brief A template to convert the service data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getManufacturerData<type>(skipSizeCheck);</tt>
*/
template<typename T>
T getManufacturerData(bool skipSizeCheck = false) {
std::string data = getManufacturerData();
if(!skipSizeCheck && data.size() < sizeof(T)) return T();
const char *pData = data.data();
return *((T *)pData);
}
std::string getName();
int getRSSI();
NimBLEScan* getScan();
uint8_t getServiceDataCount();
std::string getServiceData(uint8_t index = 0);
std::string getServiceData(const NimBLEUUID &uuid);
/**
* @brief A template to convert the service data to <tt><type\></tt>.
* @tparam T The type to convert the data to.
* @param [in] index The vector index of the service data requested.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getServiceData<type>(skipSizeCheck);</tt>
*/
template<typename T>
T getServiceData(uint8_t index = 0, bool skipSizeCheck = false) {
std::string data = getServiceData(index);
if(!skipSizeCheck && data.size() < sizeof(T)) return T();
const char *pData = data.data();
return *((T *)pData);
}
/**
* @brief A template to convert the service data to <tt><type\></tt>.
* @tparam T The type to convert the data to.
* @param [in] uuid The uuid of the service data requested.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getServiceData<type>(skipSizeCheck);</tt>
*/
template<typename T>
T getServiceData(const NimBLEUUID &uuid, bool skipSizeCheck = false) {
std::string data = getServiceData(uuid);
if(!skipSizeCheck && data.size() < sizeof(T)) return T();
const char *pData = data.data();
return *((T *)pData);
}
NimBLEUUID getServiceDataUUID(uint8_t index = 0);
NimBLEUUID getServiceUUID(uint8_t index = 0);
uint8_t getServiceUUIDCount();
NimBLEAddress getTargetAddress(uint8_t index = 0);
uint8_t getTargetAddressCount();
int8_t getTXPower();
uint8_t* getPayload();
uint8_t getAdvLength();
size_t getPayloadLength();
uint8_t getAddressType();
time_t getTimestamp();
bool isAdvertisingService(const NimBLEUUID &uuid);
bool haveAppearance();
bool haveManufacturerData();
bool haveName();
bool haveRSSI();
bool haveServiceData();
bool haveServiceUUID();
bool haveTXPower();
bool haveConnParams();
bool haveAdvInterval();
bool haveTargetAddress();
bool haveURI();
std::string toString();
bool isConnectable();
bool isLegacyAdvertisement();
#if CONFIG_BT_NIMBLE_EXT_ADV
uint8_t getSetId();
uint8_t getPrimaryPhy();
uint8_t getSecondaryPhy();
uint16_t getPeriodicInterval();
#endif
private:
friend class NimBLEScan;
void setAddress(NimBLEAddress address);
void setAdvType(uint8_t advType, bool isLegacyAdv);
void setPayload(const uint8_t *payload, uint8_t length, bool append);
void setRSSI(int rssi);
#if CONFIG_BT_NIMBLE_EXT_ADV
void setSetId(uint8_t sid) { m_sid = sid; }
void setPrimaryPhy(uint8_t phy) { m_primPhy = phy; }
void setSecondaryPhy(uint8_t phy) { m_secPhy = phy; }
void setPeriodicInterval(uint16_t itvl) { m_periodicItvl = itvl; }
#endif
uint8_t findAdvField(uint8_t type, uint8_t index = 0, size_t * data_loc = nullptr);
size_t findServiceData(uint8_t index, uint8_t* bytes);
NimBLEAddress m_address = NimBLEAddress("");
uint8_t m_advType;
int m_rssi;
time_t m_timestamp;
bool m_callbackSent;
uint8_t m_advLength;
#if CONFIG_BT_NIMBLE_EXT_ADV
bool m_isLegacyAdv;
uint8_t m_sid;
uint8_t m_primPhy;
uint8_t m_secPhy;
uint16_t m_periodicItvl;
#endif
std::vector<uint8_t> m_payload;
};
/**
* @brief A callback handler for callbacks associated device scanning.
*
* When we are performing a scan as a %BLE client, we may wish to know when a new device that is advertising
* has been found. This class can be sub-classed and registered such that when a scan is performed and
* a new advertised device has been found, we will be called back to be notified.
*/
class NimBLEAdvertisedDeviceCallbacks {
public:
virtual ~NimBLEAdvertisedDeviceCallbacks() {}
/**
* @brief Called when a new scan result is detected.
*
* As we are scanning, we will find new devices. When found, this call back is invoked with a reference to the
* device that was found. During any individual scan, a device will only be detected one time.
*/
virtual void onResult(NimBLEAdvertisedDevice* advertisedDevice) = 0;
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_OBSERVER */
#endif /* COMPONENTS_NIMBLEADVERTISEDDEVICE_H_ */

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/*
* NimBLEAdvertising.h
*
* Created: on March 3, 2020
* Author H2zero
*
* Originally:
*
* BLEAdvertising.h
*
* Created on: Jun 21, 2017
* Author: kolban
*/
#ifndef MAIN_BLEADVERTISING_H_
#define MAIN_BLEADVERTISING_H_
#include "nimconfig.h"
#if (defined(CONFIG_BT_ENABLED) && \
defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && \
!CONFIG_BT_NIMBLE_EXT_ADV) || defined(_DOXYGEN_)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_gap.h"
#else
#include "nimble/nimble/host/include/host/ble_gap.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include "NimBLEUUID.h"
#include <vector>
/* COMPATIBILITY - DO NOT USE */
#define ESP_BLE_ADV_FLAG_LIMIT_DISC (0x01 << 0)
#define ESP_BLE_ADV_FLAG_GEN_DISC (0x01 << 1)
#define ESP_BLE_ADV_FLAG_BREDR_NOT_SPT (0x01 << 2)
#define ESP_BLE_ADV_FLAG_DMT_CONTROLLER_SPT (0x01 << 3)
#define ESP_BLE_ADV_FLAG_DMT_HOST_SPT (0x01 << 4)
#define ESP_BLE_ADV_FLAG_NON_LIMIT_DISC (0x00 )
/* ************************* */
/**
* @brief Advertisement data set by the programmer to be published by the %BLE server.
*/
class NimBLEAdvertisementData {
// Only a subset of the possible BLE architected advertisement fields are currently exposed. Others will
// be exposed on demand/request or as time permits.
//
public:
void setAppearance(uint16_t appearance);
void setCompleteServices(const NimBLEUUID &uuid);
void setCompleteServices16(const std::vector<NimBLEUUID> &v_uuid);
void setCompleteServices32(const std::vector<NimBLEUUID> &v_uuid);
void setFlags(uint8_t);
void setManufacturerData(const std::string &data);
void setURI(const std::string &uri);
void setName(const std::string &name);
void setPartialServices(const NimBLEUUID &uuid);
void setPartialServices16(const std::vector<NimBLEUUID> &v_uuid);
void setPartialServices32(const std::vector<NimBLEUUID> &v_uuid);
void setServiceData(const NimBLEUUID &uuid, const std::string &data);
void setShortName(const std::string &name);
void addData(const std::string &data); // Add data to the payload.
void addData(char * data, size_t length);
void addTxPower();
void setPreferredParams(uint16_t min, uint16_t max);
std::string getPayload(); // Retrieve the current advert payload.
private:
friend class NimBLEAdvertising;
void setServices(const bool complete, const uint8_t size,
const std::vector<NimBLEUUID> &v_uuid);
std::string m_payload; // The payload of the advertisement.
}; // NimBLEAdvertisementData
/**
* @brief Perform and manage %BLE advertising.
*
* A %BLE server will want to perform advertising in order to make itself known to %BLE clients.
*/
class NimBLEAdvertising {
public:
NimBLEAdvertising();
void addServiceUUID(const NimBLEUUID &serviceUUID);
void addServiceUUID(const char* serviceUUID);
void removeServiceUUID(const NimBLEUUID &serviceUUID);
bool start(uint32_t duration = 0, void (*advCompleteCB)(NimBLEAdvertising *pAdv) = nullptr);
bool stop();
void setAppearance(uint16_t appearance);
void setName(const std::string &name);
void setManufacturerData(const std::string &data);
void setURI(const std::string &uri);
void setServiceData(const NimBLEUUID &uuid, const std::string &data);
void setAdvertisementType(uint8_t adv_type);
void setMaxInterval(uint16_t maxinterval);
void setMinInterval(uint16_t mininterval);
void setAdvertisementData(NimBLEAdvertisementData& advertisementData);
void setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly);
void setScanResponseData(NimBLEAdvertisementData& advertisementData);
void setScanResponse(bool);
void setMinPreferred(uint16_t);
void setMaxPreferred(uint16_t);
void addTxPower();
void reset();
void advCompleteCB();
bool isAdvertising();
private:
friend class NimBLEDevice;
friend class NimBLEServer;
void onHostSync();
static int handleGapEvent(struct ble_gap_event *event, void *arg);
ble_hs_adv_fields m_advData;
ble_hs_adv_fields m_scanData;
ble_gap_adv_params m_advParams;
std::vector<NimBLEUUID> m_serviceUUIDs;
bool m_customAdvData;
bool m_customScanResponseData;
bool m_scanResp;
bool m_advDataSet;
void (*m_advCompCB)(NimBLEAdvertising *pAdv);
uint8_t m_slaveItvl[4];
uint32_t m_duration;
std::vector<uint8_t> m_svcData16;
std::vector<uint8_t> m_svcData32;
std::vector<uint8_t> m_svcData128;
std::vector<uint8_t> m_name;
std::vector<uint8_t> m_mfgData;
std::vector<uint8_t> m_uri;
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER && !CONFIG_BT_NIMBLE_EXT_ADV */
#endif /* MAIN_BLEADVERTISING_H_ */

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/*
* NimBLEAttValue.h
*
* Created: on March 18, 2021
* Author H2zero
*
*/
#ifndef MAIN_NIMBLEATTVALUE_H_
#define MAIN_NIMBLEATTVALUE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#ifdef NIMBLE_CPP_ARDUINO_STRING_AVAILABLE
#include <Arduino.h>
#endif
#include "NimBLELog.h"
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include <string>
#include <vector>
#ifndef CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
# define CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED 0
#endif
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
# include <time.h>
#endif
#if !defined(CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH)
# define CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH 20
#elif CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH > BLE_ATT_ATTR_MAX_LEN
# error CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH cannot be larger than 512 (BLE_ATT_ATTR_MAX_LEN)
#elif CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH < 1
# error CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH cannot be less than 1; Range = 1 : 512
#endif
/* Used to determine if the type passed to a template has a c_str() and length() method. */
template <typename T, typename = void, typename = void>
struct Has_c_str_len : std::false_type {};
template <typename T>
struct Has_c_str_len<T, decltype(void(std::declval<T &>().c_str())),
decltype(void(std::declval<T &>().length()))> : std::true_type {};
/**
* @brief A specialized container class to hold BLE attribute values.
* @details This class is designed to be more memory efficient than using\n
* standard container types for value storage, while being convertible to\n
* many different container classes.
*/
class NimBLEAttValue
{
uint8_t* m_attr_value = nullptr;
uint16_t m_attr_max_len = 0;
uint16_t m_attr_len = 0;
uint16_t m_capacity = 0;
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
time_t m_timestamp = 0;
#endif
void deepCopy(const NimBLEAttValue & source);
public:
/**
* @brief Default constructor.
* @param[in] init_len The initial size in bytes.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(uint16_t init_len = CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);
/**
* @brief Construct with an initial value from a buffer.
* @param value A pointer to the initial value to set.
* @param[in] len The size in bytes of the value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(const uint8_t *value, uint16_t len,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);
/**
* @brief Construct with an initializer list.
* @param list An initializer list containing the initial value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(std::initializer_list<uint8_t> list,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN)
:NimBLEAttValue(list.begin(), (uint16_t)list.size(), max_len){}
/**
* @brief Construct with an initial value from a const char string.
* @param value A pointer to the initial value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(const char *value, uint16_t max_len = BLE_ATT_ATTR_MAX_LEN)
:NimBLEAttValue((uint8_t*)value, (uint16_t)strlen(value), max_len){}
/**
* @brief Construct with an initial value from a std::string.
* @param str A std::string containing to the initial value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(const std::string str, uint16_t max_len = BLE_ATT_ATTR_MAX_LEN)
:NimBLEAttValue((uint8_t*)str.data(), (uint16_t)str.length(), max_len){}
/**
* @brief Construct with an initial value from a std::vector<uint8_t>.
* @param vec A std::vector<uint8_t> containing to the initial value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(const std::vector<uint8_t> vec, uint16_t max_len = BLE_ATT_ATTR_MAX_LEN)
:NimBLEAttValue(&vec[0], (uint16_t)vec.size(), max_len){}
#ifdef NIMBLE_CPP_ARDUINO_STRING_AVAILABLE
/**
* @brief Construct with an initial value from an Arduino String.
* @param str An Arduino String containing to the initial value to set.
* @param[in] max_len The max size in bytes that the value can be.
*/
NimBLEAttValue(const String str, uint16_t max_len = BLE_ATT_ATTR_MAX_LEN)
:NimBLEAttValue((uint8_t*)str.c_str(), str.length(), max_len){}
#endif
/** @brief Copy constructor */
NimBLEAttValue(const NimBLEAttValue & source) { deepCopy(source); }
/** @brief Move constructor */
NimBLEAttValue(NimBLEAttValue && source) { *this = std::move(source); }
/** @brief Destructor */
~NimBLEAttValue();
/** @brief Returns the max size in bytes */
uint16_t max_size() const { return m_attr_max_len; }
/** @brief Returns the currently allocated capacity in bytes */
uint16_t capacity() const { return m_capacity; }
/** @brief Returns the current length of the value in bytes */
uint16_t length() const { return m_attr_len; }
/** @brief Returns the current size of the value in bytes */
uint16_t size() const { return m_attr_len; }
/** @brief Returns a pointer to the internal buffer of the value */
const uint8_t* data() const { return m_attr_value; }
/** @brief Returns a pointer to the internal buffer of the value as a const char* */
const char* c_str() const { return (const char*)m_attr_value; }
/** @brief Iterator begin */
const uint8_t* begin() const { return m_attr_value; }
/** @brief Iterator end */
const uint8_t* end() const { return m_attr_value + m_attr_len; }
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
/** @brief Returns a timestamp of when the value was last updated */
time_t getTimeStamp() const { return m_timestamp; }
/** @brief Set the timestamp to the current time */
void setTimeStamp() { m_timestamp = time(nullptr); }
/**
* @brief Set the timestamp to the specified time
* @param[in] t The timestamp value to set
*/
void setTimeStamp(time_t t) { m_timestamp = t; }
#else
time_t getTimeStamp() const { return 0; }
void setTimeStamp() { }
void setTimeStamp(time_t t) { }
#endif
/**
* @brief Set the value from a buffer
* @param[in] value A ponter to a buffer containing the value.
* @param[in] len The length of the value in bytes.
* @returns True if successful.
*/
bool setValue(const uint8_t *value, uint16_t len);
/**
* @brief Set value to the value of const char*.
* @param [in] s A ponter to a const char value to set.
*/
bool setValue(const char* s) {
return setValue((uint8_t*)s, (uint16_t)strlen(s)); }
/**
* @brief Get a pointer to the value buffer with timestamp.
* @param[in] timestamp A ponter to a time_t variable to store the timestamp.
* @returns A pointer to the internal value buffer.
*/
const uint8_t* getValue(time_t *timestamp);
/**
* @brief Append data to the value.
* @param[in] value A ponter to a data buffer with the value to append.
* @param[in] len The length of the value to append in bytes.
* @returns A reference to the appended NimBLEAttValue.
*/
NimBLEAttValue& append(const uint8_t *value, uint16_t len);
/*********************** Template Functions ************************/
/**
* @brief Template to set value to the value of <type\>val.
* @param [in] s The <type\>value to set.
* @details Only used for types without a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<!Has_c_str_len<T>::value, bool>::type
#endif
setValue(const T &s) {
return setValue((uint8_t*)&s, sizeof(T));
}
/**
* @brief Template to set value to the value of <type\>val.
* @param [in] s The <type\>value to set.
* @details Only used if the <type\> has a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<Has_c_str_len<T>::value, bool>::type
#endif
setValue(const T & s) {
return setValue((uint8_t*)s.c_str(), (uint16_t)s.length());
}
/**
* @brief Template to return the value as a <type\>.
* @tparam T The type to convert the data to.
* @param [in] timestamp A pointer to a time_t struct to store the time the value was read.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than\n
* <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is\n
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getValue<type>(&timestamp, skipSizeCheck);</tt>
*/
template<typename T>
T getValue(time_t *timestamp = nullptr, bool skipSizeCheck = false) {
if(!skipSizeCheck && size() < sizeof(T)) {
return T();
}
return *((T *)getValue(timestamp));
}
/*********************** Operators ************************/
/** @brief Subscript operator */
uint8_t operator [](int pos) const {
assert(pos < m_attr_len && "out of range"); return m_attr_value[pos]; }
/** @brief Operator; Get the value as a std::vector<uint8_t>. */
operator std::vector<uint8_t>() const {
return std::vector<uint8_t>(m_attr_value, m_attr_value + m_attr_len); }
/** @brief Operator; Get the value as a std::string. */
operator std::string() const {
return std::string((char*)m_attr_value, m_attr_len); }
/** @brief Operator; Get the value as a const uint8_t*. */
operator const uint8_t*() const { return m_attr_value; }
/** @brief Operator; Append another NimBLEAttValue. */
NimBLEAttValue& operator +=(const NimBLEAttValue & source) {
return append(source.data(), source.size()); }
/** @brief Operator; Set the value from a std::string source. */
NimBLEAttValue& operator =(const std::string & source) {
setValue((uint8_t*)source.data(), (uint16_t)source.size()); return *this; }
/** @brief Move assignment operator */
NimBLEAttValue& operator =(NimBLEAttValue && source);
/** @brief Copy assignment operator */
NimBLEAttValue& operator =(const NimBLEAttValue & source);
/** @brief Equality operator */
bool operator ==(const NimBLEAttValue & source) {
return (m_attr_len == source.size()) ?
memcmp(m_attr_value, source.data(), m_attr_len) == 0 : false; }
/** @brief Inequality operator */
bool operator !=(const NimBLEAttValue & source){ return !(*this == source); }
#ifdef NIMBLE_CPP_ARDUINO_STRING_AVAILABLE
/** @brief Operator; Get the value as an Arduino String value. */
operator String() const { return String((char*)m_attr_value); }
#endif
};
inline NimBLEAttValue::NimBLEAttValue(uint16_t init_len, uint16_t max_len) {
m_attr_value = (uint8_t*)calloc(init_len + 1, 1);
assert(m_attr_value && "No Mem");
m_attr_max_len = std::min(BLE_ATT_ATTR_MAX_LEN, (int)max_len);
m_attr_len = 0;
m_capacity = init_len;
setTimeStamp(0);
}
inline NimBLEAttValue::NimBLEAttValue(const uint8_t *value, uint16_t len, uint16_t max_len)
: NimBLEAttValue(len, max_len) {
memcpy(m_attr_value, value, len);
m_attr_value[len] = '\0';
m_attr_len = len;
}
inline NimBLEAttValue::~NimBLEAttValue() {
if(m_attr_value != nullptr) {
free(m_attr_value);
}
}
inline NimBLEAttValue& NimBLEAttValue::operator =(NimBLEAttValue && source) {
if (this != &source){
free(m_attr_value);
m_attr_value = source.m_attr_value;
m_attr_max_len = source.m_attr_max_len;
m_attr_len = source.m_attr_len;
m_capacity = source.m_capacity;
setTimeStamp(source.getTimeStamp());
source.m_attr_value = nullptr;
}
return *this;
}
inline NimBLEAttValue& NimBLEAttValue::operator =(const NimBLEAttValue & source) {
if (this != &source) {
deepCopy(source);
}
return *this;
}
inline void NimBLEAttValue::deepCopy(const NimBLEAttValue & source) {
uint8_t* res = (uint8_t*)realloc( m_attr_value, source.m_capacity + 1);
assert(res && "deepCopy: realloc failed");
ble_npl_hw_enter_critical();
m_attr_value = res;
m_attr_max_len = source.m_attr_max_len;
m_attr_len = source.m_attr_len;
m_capacity = source.m_capacity;
setTimeStamp(source.getTimeStamp());
memcpy(m_attr_value, source.m_attr_value, m_attr_len + 1);
ble_npl_hw_exit_critical(0);
}
inline const uint8_t* NimBLEAttValue::getValue(time_t *timestamp) {
if(timestamp != nullptr) {
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
*timestamp = m_timestamp;
#else
*timestamp = 0;
#endif
}
return m_attr_value;
}
inline bool NimBLEAttValue::setValue(const uint8_t *value, uint16_t len) {
if (len > m_attr_max_len) {
NIMBLE_LOGE("NimBLEAttValue", "value exceeds max, len=%u, max=%u",
len, m_attr_max_len);
return false;
}
uint8_t *res = m_attr_value;
if (len > m_capacity) {
res = (uint8_t*)realloc(m_attr_value, (len + 1));
m_capacity = len;
}
assert(res && "setValue: realloc failed");
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
time_t t = time(nullptr);
#else
time_t t = 0;
#endif
ble_npl_hw_enter_critical();
m_attr_value = res;
memcpy(m_attr_value, value, len);
m_attr_value[len] = '\0';
m_attr_len = len;
setTimeStamp(t);
ble_npl_hw_exit_critical(0);
return true;
}
inline NimBLEAttValue& NimBLEAttValue::append(const uint8_t *value, uint16_t len) {
if (len < 1) {
return *this;
}
if ((m_attr_len + len) > m_attr_max_len) {
NIMBLE_LOGE("NimBLEAttValue", "val > max, len=%u, max=%u",
len, m_attr_max_len);
return *this;
}
uint8_t* res = m_attr_value;
uint16_t new_len = m_attr_len + len;
if (new_len > m_capacity) {
res = (uint8_t*)realloc(m_attr_value, (new_len + 1));
m_capacity = new_len;
}
assert(res && "append: realloc failed");
#if CONFIG_NIMBLE_CPP_ATT_VALUE_TIMESTAMP_ENABLED
time_t t = time(nullptr);
#else
time_t t = 0;
#endif
ble_npl_hw_enter_critical();
m_attr_value = res;
memcpy(m_attr_value + m_attr_len, value, len);
m_attr_len = new_len;
m_attr_value[m_attr_len] = '\0';
setTimeStamp(t);
ble_npl_hw_exit_critical(0);
return *this;
}
#endif /*(CONFIG_BT_ENABLED) */
#endif /* MAIN_NIMBLEATTVALUE_H_ */

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/*
* NimBLEBeacon2.cpp
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEBeacon.cpp
*
* Created on: Jan 4, 2018
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include <string.h>
#include <algorithm>
#include "NimBLEBeacon.h"
#include "NimBLELog.h"
#define ENDIAN_CHANGE_U16(x) ((((x)&0xFF00)>>8) + (((x)&0xFF)<<8))
static const char* LOG_TAG = "NimBLEBeacon";
/**
* @brief Construct a default beacon object.
*/
NimBLEBeacon::NimBLEBeacon() {
m_beaconData.manufacturerId = 0x4c00;
m_beaconData.subType = 0x02;
m_beaconData.subTypeLength = 0x15;
m_beaconData.major = 0;
m_beaconData.minor = 0;
m_beaconData.signalPower = 0;
memset(m_beaconData.proximityUUID, 0, sizeof(m_beaconData.proximityUUID));
} // NimBLEBeacon
/**
* @brief Retrieve the data that is being advertised.
* @return The advertised data.
*/
std::string NimBLEBeacon::getData() {
return std::string((char*) &m_beaconData, sizeof(m_beaconData));
} // getData
/**
* @brief Get the major value being advertised.
* @return The major value advertised.
*/
uint16_t NimBLEBeacon::getMajor() {
return m_beaconData.major;
}
/**
* @brief Get the manufacturer ID being advertised.
* @return The manufacturer ID value advertised.
*/
uint16_t NimBLEBeacon::getManufacturerId() {
return m_beaconData.manufacturerId;
}
/**
* @brief Get the minor value being advertised.
* @return minor value advertised.
*/
uint16_t NimBLEBeacon::getMinor() {
return m_beaconData.minor;
}
/**
* @brief Get the proximity UUID being advertised.
* @return The UUID advertised.
*/
NimBLEUUID NimBLEBeacon::getProximityUUID() {
return NimBLEUUID(m_beaconData.proximityUUID, 16, true);
}
/**
* @brief Get the signal power being advertised.
* @return signal power level advertised.
*/
int8_t NimBLEBeacon::getSignalPower() {
return m_beaconData.signalPower;
}
/**
* @brief Set the raw data for the beacon record.
* @param [in] data The raw beacon data.
*/
void NimBLEBeacon::setData(const std::string &data) {
if (data.length() != sizeof(m_beaconData)) {
NIMBLE_LOGE(LOG_TAG, "Unable to set the data ... length passed in was %d and expected %d",
data.length(), sizeof(m_beaconData));
return;
}
memcpy(&m_beaconData, data.data(), sizeof(m_beaconData));
} // setData
/**
* @brief Set the major value.
* @param [in] major The major value.
*/
void NimBLEBeacon::setMajor(uint16_t major) {
m_beaconData.major = ENDIAN_CHANGE_U16(major);
} // setMajor
/**
* @brief Set the manufacturer ID.
* @param [in] manufacturerId The manufacturer ID value.
*/
void NimBLEBeacon::setManufacturerId(uint16_t manufacturerId) {
m_beaconData.manufacturerId = ENDIAN_CHANGE_U16(manufacturerId);
} // setManufacturerId
/**
* @brief Set the minor value.
* @param [in] minor The minor value.
*/
void NimBLEBeacon::setMinor(uint16_t minor) {
m_beaconData.minor = ENDIAN_CHANGE_U16(minor);
} // setMinor
/**
* @brief Set the proximity UUID.
* @param [in] uuid The proximity UUID.
*/
void NimBLEBeacon::setProximityUUID(const NimBLEUUID &uuid) {
NimBLEUUID temp_uuid = uuid;
temp_uuid.to128();
std::reverse_copy(temp_uuid.getNative()->u128.value,
temp_uuid.getNative()->u128.value + 16,
m_beaconData.proximityUUID);
} // setProximityUUID
/**
* @brief Set the signal power.
* @param [in] signalPower The signal power value.
*/
void NimBLEBeacon::setSignalPower(int8_t signalPower) {
m_beaconData.signalPower = signalPower;
} // setSignalPower
#endif

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/*
* NimBLEBeacon2.h
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEBeacon2.h
*
* Created on: Jan 4, 2018
* Author: kolban
*/
#ifndef MAIN_NIMBLEBEACON_H_
#define MAIN_NIMBLEBEACON_H_
#include "NimBLEUUID.h"
/**
* @brief Representation of a beacon.
* See:
* * https://en.wikipedia.org/wiki/IBeacon
*/
class NimBLEBeacon {
private:
struct {
uint16_t manufacturerId;
uint8_t subType;
uint8_t subTypeLength;
uint8_t proximityUUID[16];
uint16_t major;
uint16_t minor;
int8_t signalPower;
} __attribute__((packed)) m_beaconData;
public:
NimBLEBeacon();
std::string getData();
uint16_t getMajor();
uint16_t getMinor();
uint16_t getManufacturerId();
NimBLEUUID getProximityUUID();
int8_t getSignalPower();
void setData(const std::string &data);
void setMajor(uint16_t major);
void setMinor(uint16_t minor);
void setManufacturerId(uint16_t manufacturerId);
void setProximityUUID(const NimBLEUUID &uuid);
void setSignalPower(int8_t signalPower);
}; // NimBLEBeacon
#endif /* MAIN_NIMBLEBEACON_H_ */

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/*
* NimBLECharacteristic.cpp
*
* Created: on March 3, 2020
* Author H2zero
*
* BLECharacteristic.cpp
*
* Created on: Jun 22, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLECharacteristic.h"
#include "NimBLE2904.h"
#include "NimBLEDevice.h"
#include "NimBLELog.h"
#define NULL_HANDLE (0xffff)
#define NIMBLE_SUB_NOTIFY 0x0001
#define NIMBLE_SUB_INDICATE 0x0002
static NimBLECharacteristicCallbacks defaultCallback;
static const char* LOG_TAG = "NimBLECharacteristic";
/**
* @brief Construct a characteristic
* @param [in] uuid - UUID (const char*) for the characteristic.
* @param [in] properties - Properties for the characteristic.
* @param [in] max_len - The maximum length in bytes that the characteristic value can hold. (Default: 512 bytes for esp32, 20 for all others).
* @param [in] pService - pointer to the service instance this characteristic belongs to.
*/
NimBLECharacteristic::NimBLECharacteristic(const char* uuid, uint16_t properties,
uint16_t max_len, NimBLEService* pService)
: NimBLECharacteristic(NimBLEUUID(uuid), properties, max_len, pService) {
}
/**
* @brief Construct a characteristic
* @param [in] uuid - UUID for the characteristic.
* @param [in] properties - Properties for the characteristic.
* @param [in] max_len - The maximum length in bytes that the characteristic value can hold. (Default: 512 bytes for esp32, 20 for all others).
* @param [in] pService - pointer to the service instance this characteristic belongs to.
*/
NimBLECharacteristic::NimBLECharacteristic(const NimBLEUUID &uuid, uint16_t properties,
uint16_t max_len, NimBLEService* pService)
: m_value(std::min(CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH , (int)max_len), max_len) {
m_uuid = uuid;
m_handle = NULL_HANDLE;
m_properties = properties;
m_pCallbacks = &defaultCallback;
m_pService = pService;
m_removed = 0;
} // NimBLECharacteristic
/**
* @brief Destructor.
*/
NimBLECharacteristic::~NimBLECharacteristic() {
for(auto &it : m_dscVec) {
delete it;
}
} // ~NimBLECharacteristic
/**
* @brief Create a new BLE Descriptor associated with this characteristic.
* @param [in] uuid - The UUID of the descriptor.
* @param [in] properties - The properties of the descriptor.
* @param [in] max_len - The max length in bytes of the descriptor value.
* @return The new BLE descriptor.
*/
NimBLEDescriptor* NimBLECharacteristic::createDescriptor(const char* uuid, uint32_t properties, uint16_t max_len) {
return createDescriptor(NimBLEUUID(uuid), properties, max_len);
}
/**
* @brief Create a new BLE Descriptor associated with this characteristic.
* @param [in] uuid - The UUID of the descriptor.
* @param [in] properties - The properties of the descriptor.
* @param [in] max_len - The max length in bytes of the descriptor value.
* @return The new BLE descriptor.
*/
NimBLEDescriptor* NimBLECharacteristic::createDescriptor(const NimBLEUUID &uuid, uint32_t properties, uint16_t max_len) {
NimBLEDescriptor* pDescriptor = nullptr;
if(uuid == NimBLEUUID(uint16_t(0x2902))) {
assert(0 && "0x2902 descriptors cannot be manually created");
} else if (uuid == NimBLEUUID(uint16_t(0x2904))) {
pDescriptor = new NimBLE2904(this);
} else {
pDescriptor = new NimBLEDescriptor(uuid, properties, max_len, this);
}
addDescriptor(pDescriptor);
return pDescriptor;
} // createDescriptor
/**
* @brief Add a descriptor to the characteristic.
* @param [in] pDescriptor A pointer to the descriptor to add.
*/
void NimBLECharacteristic::addDescriptor(NimBLEDescriptor *pDescriptor) {
bool foundRemoved = false;
if(pDescriptor->m_removed > 0) {
for(auto& it : m_dscVec) {
if(it == pDescriptor) {
foundRemoved = true;
pDescriptor->m_removed = 0;
}
}
}
if(!foundRemoved) {
m_dscVec.push_back(pDescriptor);
}
pDescriptor->setCharacteristic(this);
NimBLEDevice::getServer()->serviceChanged();
}
/**
* @brief Remove a descriptor from the characteristic.
* @param[in] pDescriptor A pointer to the descriptor instance to remove from the characteristic.
* @param[in] deleteDsc If true it will delete the descriptor instance and free it's resources.
*/
void NimBLECharacteristic::removeDescriptor(NimBLEDescriptor *pDescriptor, bool deleteDsc) {
// Check if the descriptor was already removed and if so, check if this
// is being called to delete the object and do so if requested.
// Otherwise, ignore the call and return.
if(pDescriptor->m_removed > 0) {
if(deleteDsc) {
for(auto it = m_dscVec.begin(); it != m_dscVec.end(); ++it) {
if ((*it) == pDescriptor) {
delete *it;
m_dscVec.erase(it);
break;
}
}
}
return;
}
pDescriptor->m_removed = deleteDsc ? NIMBLE_ATT_REMOVE_DELETE : NIMBLE_ATT_REMOVE_HIDE;
NimBLEDevice::getServer()->serviceChanged();
} // removeDescriptor
/**
* @brief Return the BLE Descriptor for the given UUID.
* @param [in] uuid The UUID of the descriptor.
* @return A pointer to the descriptor object or nullptr if not found.
*/
NimBLEDescriptor* NimBLECharacteristic::getDescriptorByUUID(const char* uuid) {
return getDescriptorByUUID(NimBLEUUID(uuid));
} // getDescriptorByUUID
/**
* @brief Return the BLE Descriptor for the given UUID.
* @param [in] uuid The UUID of the descriptor.
* @return A pointer to the descriptor object or nullptr if not found.
*/
NimBLEDescriptor* NimBLECharacteristic::getDescriptorByUUID(const NimBLEUUID &uuid) {
for (auto &it : m_dscVec) {
if (it->getUUID() == uuid) {
return it;
}
}
return nullptr;
} // getDescriptorByUUID
/**
* @brief Return the BLE Descriptor for the given handle.
* @param [in] handle The handle of the descriptor.
* @return A pointer to the descriptor object or nullptr if not found.
*/
NimBLEDescriptor *NimBLECharacteristic::getDescriptorByHandle(uint16_t handle) {
for (auto &it : m_dscVec) {
if (it->getHandle() == handle) {
return it;
}
}
return nullptr;
}
/**
* @brief Get the handle of the characteristic.
* @return The handle of the characteristic.
*/
uint16_t NimBLECharacteristic::getHandle() {
return m_handle;
} // getHandle
/**
* @brief Get the properties of the characteristic.
* @return The properties of the characteristic.
*/
uint16_t NimBLECharacteristic::getProperties() {
return m_properties;
} // getProperties
/**
* @brief Get the service associated with this characteristic.
*/
NimBLEService* NimBLECharacteristic::getService() {
return m_pService;
} // getService
void NimBLECharacteristic::setService(NimBLEService *pService) {
m_pService = pService;
}
/**
* @brief Get the UUID of the characteristic.
* @return The UUID of the characteristic.
*/
NimBLEUUID NimBLECharacteristic::getUUID() {
return m_uuid;
} // getUUID
/**
* @brief Retrieve the current value of the characteristic.
* @return The NimBLEAttValue containing the current characteristic value.
*/
NimBLEAttValue NimBLECharacteristic::getValue(time_t *timestamp) {
if(timestamp != nullptr) {
m_value.getValue(timestamp);
}
return m_value;
} // getValue
/**
* @brief Retrieve the the current data length of the characteristic.
* @return The length of the current characteristic data.
*/
size_t NimBLECharacteristic::getDataLength() {
return m_value.size();
}
/**
* @brief STATIC callback to handle events from the NimBLE stack.
*/
int NimBLECharacteristic::handleGapEvent(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt,
void *arg)
{
const ble_uuid_t *uuid;
int rc;
struct ble_gap_conn_desc desc;
NimBLECharacteristic* pCharacteristic = (NimBLECharacteristic*)arg;
NIMBLE_LOGD(LOG_TAG, "Characteristic %s %s event", pCharacteristic->getUUID().toString().c_str(),
ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR ? "Read" : "Write");
uuid = ctxt->chr->uuid;
if(ble_uuid_cmp(uuid, &pCharacteristic->getUUID().getNative()->u) == 0){
switch(ctxt->op) {
case BLE_GATT_ACCESS_OP_READ_CHR: {
rc = ble_gap_conn_find(conn_handle, &desc);
assert(rc == 0);
// If the packet header is only 8 bytes this is a follow up of a long read
// so we don't want to call the onRead() callback again.
if(ctxt->om->om_pkthdr_len > 8 ||
pCharacteristic->m_value.size() <= (ble_att_mtu(desc.conn_handle) - 3)) {
pCharacteristic->m_pCallbacks->onRead(pCharacteristic);
pCharacteristic->m_pCallbacks->onRead(pCharacteristic, &desc);
}
ble_npl_hw_enter_critical();
rc = os_mbuf_append(ctxt->om, pCharacteristic->m_value.data(), pCharacteristic->m_value.size());
ble_npl_hw_exit_critical(0);
return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
}
case BLE_GATT_ACCESS_OP_WRITE_CHR: {
uint16_t att_max_len = pCharacteristic->m_value.max_size();
if (ctxt->om->om_len > att_max_len) {
return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
}
uint8_t buf[att_max_len];
size_t len = ctxt->om->om_len;
memcpy(buf, ctxt->om->om_data,len);
os_mbuf *next;
next = SLIST_NEXT(ctxt->om, om_next);
while(next != NULL){
if((len + next->om_len) > att_max_len) {
return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
}
memcpy(&buf[len], next->om_data, next->om_len);
len += next->om_len;
next = SLIST_NEXT(next, om_next);
}
rc = ble_gap_conn_find(conn_handle, &desc);
assert(rc == 0);
pCharacteristic->setValue(buf, len);
pCharacteristic->m_pCallbacks->onWrite(pCharacteristic);
pCharacteristic->m_pCallbacks->onWrite(pCharacteristic, &desc);
return 0;
}
default:
break;
}
}
return BLE_ATT_ERR_UNLIKELY;
}
/**
* @brief Get the number of clients subscribed to the characteristic.
* @returns Number of clients subscribed to notifications / indications.
*/
size_t NimBLECharacteristic::getSubscribedCount() {
return m_subscribedVec.size();
}
/**
* @brief Set the subscribe status for this characteristic.\n
* This will maintain a vector of subscribed clients and their indicate/notify status.
*/
void NimBLECharacteristic::setSubscribe(struct ble_gap_event *event) {
ble_gap_conn_desc desc;
if(ble_gap_conn_find(event->subscribe.conn_handle, &desc) != 0) {
return;
}
uint16_t subVal = 0;
if(event->subscribe.cur_notify > 0 && (m_properties & NIMBLE_PROPERTY::NOTIFY)) {
subVal |= NIMBLE_SUB_NOTIFY;
}
if(event->subscribe.cur_indicate && (m_properties & NIMBLE_PROPERTY::INDICATE)) {
subVal |= NIMBLE_SUB_INDICATE;
}
NIMBLE_LOGI(LOG_TAG, "New subscribe value for conn: %d val: %d",
event->subscribe.conn_handle, subVal);
if(!event->subscribe.cur_indicate && event->subscribe.prev_indicate) {
NimBLEDevice::getServer()->clearIndicateWait(event->subscribe.conn_handle);
}
auto it = m_subscribedVec.begin();
for(;it != m_subscribedVec.end(); ++it) {
if((*it).first == event->subscribe.conn_handle) {
break;
}
}
if(subVal > 0) {
if(it == m_subscribedVec.end()) {
m_subscribedVec.push_back({event->subscribe.conn_handle, subVal});
} else {
(*it).second = subVal;
}
} else if(it != m_subscribedVec.end()) {
m_subscribedVec.erase(it);
}
m_pCallbacks->onSubscribe(this, &desc, subVal);
}
/**
* @brief Send an indication.
*/
void NimBLECharacteristic::indicate() {
notify(false);
} // indicate
/**
* @brief Send an indication.
* @param[in] value A pointer to the data to send.
* @param[in] length The length of the data to send.
*/
void NimBLECharacteristic::indicate(const uint8_t* value, size_t length) {
notify(value, length, false);
} // indicate
/**
* @brief Send an indication.
* @param[in] value A std::vector<uint8_t> containing the value to send as the notification value.
*/
void NimBLECharacteristic::indicate(const std::vector<uint8_t>& value) {
notify(value.data(), value.size(), false);
} // indicate
/**
* @brief Send a notification or indication.
* @param[in] is_notification if true sends a notification, false sends an indication.
*/
void NimBLECharacteristic::notify(bool is_notification) {
notify(m_value.data(), m_value.length(), is_notification);
} // notify
/**
* @brief Send a notification or indication.
* @param[in] value A std::vector<uint8_t> containing the value to send as the notification value.
* @param[in] is_notification if true sends a notification, false sends an indication.
*/
void NimBLECharacteristic::notify(const std::vector<uint8_t>& value, bool is_notification) {
notify(value.data(), value.size(), is_notification);
} // notify
/**
* @brief Send a notification or indication.
* @param[in] value A pointer to the data to send.
* @param[in] length The length of the data to send.
* @param[in] is_notification if true sends a notification, false sends an indication.
*/
void NimBLECharacteristic::notify(const uint8_t* value, size_t length, bool is_notification) {
NIMBLE_LOGD(LOG_TAG, ">> notify: length: %d", length);
if(!(m_properties & NIMBLE_PROPERTY::NOTIFY) &&
!(m_properties & NIMBLE_PROPERTY::INDICATE))
{
NIMBLE_LOGE(LOG_TAG,
"<< notify-Error; Notify/indicate not enabled for characteristic: %s",
std::string(getUUID()).c_str());
}
if (m_subscribedVec.size() == 0) {
NIMBLE_LOGD(LOG_TAG, "<< notify: No clients subscribed.");
return;
}
m_pCallbacks->onNotify(this);
bool reqSec = (m_properties & BLE_GATT_CHR_F_READ_AUTHEN) ||
(m_properties & BLE_GATT_CHR_F_READ_AUTHOR) ||
(m_properties & BLE_GATT_CHR_F_READ_ENC);
int rc = 0;
for (auto &it : m_subscribedVec) {
uint16_t _mtu = getService()->getServer()->getPeerMTU(it.first) - 3;
// check if connected and subscribed
if(_mtu == 0 || it.second == 0) {
continue;
}
// check if security requirements are satisfied
if(reqSec) {
struct ble_gap_conn_desc desc;
rc = ble_gap_conn_find(it.first, &desc);
if(rc != 0 || !desc.sec_state.encrypted) {
continue;
}
}
if (length > _mtu) {
NIMBLE_LOGW(LOG_TAG, "- Truncating to %d bytes (maximum notify size)", _mtu);
}
if(is_notification && (!(it.second & NIMBLE_SUB_NOTIFY))) {
NIMBLE_LOGW(LOG_TAG,
"Sending notification to client subscribed to indications, sending indication instead");
is_notification = false;
}
if(!is_notification && (!(it.second & NIMBLE_SUB_INDICATE))) {
NIMBLE_LOGW(LOG_TAG,
"Sending indication to client subscribed to notification, sending notification instead");
is_notification = true;
}
// don't create the m_buf until we are sure to send the data or else
// we could be allocating a buffer that doesn't get released.
// We also must create it in each loop iteration because it is consumed with each host call.
os_mbuf *om = ble_hs_mbuf_from_flat(value, length);
if(!is_notification && (m_properties & NIMBLE_PROPERTY::INDICATE)) {
if(!NimBLEDevice::getServer()->setIndicateWait(it.first)) {
NIMBLE_LOGE(LOG_TAG, "prior Indication in progress");
os_mbuf_free_chain(om);
return;
}
rc = ble_gattc_indicate_custom(it.first, m_handle, om);
if(rc != 0){
NimBLEDevice::getServer()->clearIndicateWait(it.first);
}
} else {
ble_gattc_notify_custom(it.first, m_handle, om);
}
}
NIMBLE_LOGD(LOG_TAG, "<< notify");
} // Notify
/**
* @brief Set the callback handlers for this characteristic.
* @param [in] pCallbacks An instance of a NimBLECharacteristicCallbacks class\n
* used to define any callbacks for the characteristic.
*/
void NimBLECharacteristic::setCallbacks(NimBLECharacteristicCallbacks* pCallbacks) {
if (pCallbacks != nullptr){
m_pCallbacks = pCallbacks;
} else {
m_pCallbacks = &defaultCallback;
}
} // setCallbacks
/**
* @brief Get the callback handlers for this characteristic.
*/
NimBLECharacteristicCallbacks* NimBLECharacteristic::getCallbacks() {
return m_pCallbacks;
} //getCallbacks
/**
* @brief Set the value of the characteristic from a data buffer .
* @param [in] data The data buffer to set for the characteristic.
* @param [in] length The number of bytes in the data buffer.
*/
void NimBLECharacteristic::setValue(const uint8_t* data, size_t length) {
#if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 4
char* pHex = NimBLEUtils::buildHexData(nullptr, data, length);
NIMBLE_LOGD(LOG_TAG, ">> setValue: length=%d, data=%s, characteristic UUID=%s",
length, pHex, getUUID().toString().c_str());
free(pHex);
#endif
m_value.setValue(data, length);
NIMBLE_LOGD(LOG_TAG, "<< setValue");
} // setValue
/**
* @brief Set the value of the characteristic from a `std::vector<uint8_t>`.\n
* @param [in] vec The std::vector<uint8_t> reference to set the characteristic value from.
*/
void NimBLECharacteristic::setValue(const std::vector<uint8_t>& vec) {
return setValue((uint8_t*)&vec[0], vec.size());
}// setValue
/**
* @brief Return a string representation of the characteristic.
* @return A string representation of the characteristic.
*/
std::string NimBLECharacteristic::toString() {
std::string res = "UUID: " + m_uuid.toString() + ", handle : 0x";
char hex[5];
snprintf(hex, sizeof(hex), "%04x", m_handle);
res += hex;
res += " ";
if (m_properties & BLE_GATT_CHR_PROP_READ ) res += "Read ";
if (m_properties & BLE_GATT_CHR_PROP_WRITE) res += "Write ";
if (m_properties & BLE_GATT_CHR_PROP_WRITE_NO_RSP) res += "WriteNoResponse ";
if (m_properties & BLE_GATT_CHR_PROP_BROADCAST) res += "Broadcast ";
if (m_properties & BLE_GATT_CHR_PROP_NOTIFY) res += "Notify ";
if (m_properties & BLE_GATT_CHR_PROP_INDICATE) res += "Indicate ";
return res;
} // toString
NimBLECharacteristicCallbacks::~NimBLECharacteristicCallbacks() {}
/**
* @brief Callback function to support a read request.
* @param [in] pCharacteristic The characteristic that is the source of the event.
*/
void NimBLECharacteristicCallbacks::onRead(NimBLECharacteristic* pCharacteristic) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onRead: default");
} // onRead
/**
* @brief Callback function to support a read request.
* @param [in] pCharacteristic The characteristic that is the source of the event.
* @param [in] desc The connection description struct that is associated with the peer that performed the read.
*/
void NimBLECharacteristicCallbacks::onRead(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onRead: default");
} // onRead
/**
* @brief Callback function to support a write request.
* @param [in] pCharacteristic The characteristic that is the source of the event.
*/
void NimBLECharacteristicCallbacks::onWrite(NimBLECharacteristic* pCharacteristic) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onWrite: default");
} // onWrite
/**
* @brief Callback function to support a write request.
* @param [in] pCharacteristic The characteristic that is the source of the event.
* @param [in] desc The connection description struct that is associated with the peer that performed the write.
*/
void NimBLECharacteristicCallbacks::onWrite(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onWrite: default");
} // onWrite
/**
* @brief Callback function to support a Notify request.
* @param [in] pCharacteristic The characteristic that is the source of the event.
*/
void NimBLECharacteristicCallbacks::onNotify(NimBLECharacteristic* pCharacteristic) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onNotify: default");
} // onNotify
/**
* @brief Callback function to support a Notify/Indicate Status report.
* @param [in] pCharacteristic The characteristic that is the source of the event.
* @param [in] s Status of the notification/indication.
* @param [in] code Additional return code from the NimBLE stack.
*/
void NimBLECharacteristicCallbacks::onStatus(NimBLECharacteristic* pCharacteristic, Status s, int code) {
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onStatus: default");
} // onStatus
/**
* @brief Callback function called when a client changes subscription status.
* @param [in] pCharacteristic The characteristic that is the source of the event.
* @param [in] desc The connection description struct that is associated with the client.
* @param [in] subValue The subscription status:
* * 0 = Un-Subscribed
* * 1 = Notifications
* * 2 = Indications
* * 3 = Notifications and Indications
*/
void NimBLECharacteristicCallbacks::onSubscribe(NimBLECharacteristic* pCharacteristic,
ble_gap_conn_desc* desc,
uint16_t subValue)
{
NIMBLE_LOGD("NimBLECharacteristicCallbacks", "onSubscribe: default");
}
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

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/*
* NimBLECharacteristic.h
*
* Created: on March 3, 2020
* Author H2zero
*
* Originally:
* BLECharacteristic.h
*
* Created on: Jun 22, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLECHARACTERISTIC_H_
#define MAIN_NIMBLECHARACTERISTIC_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_hs.h"
#else
#include "nimble/nimble/host/include/host/ble_hs.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
typedef enum {
READ = BLE_GATT_CHR_F_READ,
READ_ENC = BLE_GATT_CHR_F_READ_ENC,
READ_AUTHEN = BLE_GATT_CHR_F_READ_AUTHEN,
READ_AUTHOR = BLE_GATT_CHR_F_READ_AUTHOR,
WRITE = BLE_GATT_CHR_F_WRITE,
WRITE_NR = BLE_GATT_CHR_F_WRITE_NO_RSP,
WRITE_ENC = BLE_GATT_CHR_F_WRITE_ENC,
WRITE_AUTHEN = BLE_GATT_CHR_F_WRITE_AUTHEN,
WRITE_AUTHOR = BLE_GATT_CHR_F_WRITE_AUTHOR,
BROADCAST = BLE_GATT_CHR_F_BROADCAST,
NOTIFY = BLE_GATT_CHR_F_NOTIFY,
INDICATE = BLE_GATT_CHR_F_INDICATE
} NIMBLE_PROPERTY;
#include "NimBLEService.h"
#include "NimBLEDescriptor.h"
#include "NimBLEAttValue.h"
#include <string>
#include <vector>
class NimBLEService;
class NimBLEDescriptor;
class NimBLECharacteristicCallbacks;
/**
* @brief The model of a %BLE Characteristic.
*
* A BLE Characteristic is an identified value container that manages a value. It is exposed by a BLE server and
* can be read and written to by a %BLE client.
*/
class NimBLECharacteristic {
public:
NimBLECharacteristic(const char* uuid,
uint16_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN,
NimBLEService* pService = nullptr);
NimBLECharacteristic(const NimBLEUUID &uuid,
uint16_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN,
NimBLEService* pService = nullptr);
~NimBLECharacteristic();
uint16_t getHandle();
NimBLEUUID getUUID();
std::string toString();
void indicate();
void indicate(const uint8_t* value, size_t length);
void indicate(const std::vector<uint8_t>& value);
void notify(bool is_notification = true);
void notify(const uint8_t* value, size_t length, bool is_notification = true);
void notify(const std::vector<uint8_t>& value, bool is_notification = true);
size_t getSubscribedCount();
void addDescriptor(NimBLEDescriptor *pDescriptor);
NimBLEDescriptor* getDescriptorByUUID(const char* uuid);
NimBLEDescriptor* getDescriptorByUUID(const NimBLEUUID &uuid);
NimBLEDescriptor* getDescriptorByHandle(uint16_t handle);
void removeDescriptor(NimBLEDescriptor *pDescriptor, bool deleteDsc = false);
NimBLEService* getService();
uint16_t getProperties();
NimBLEAttValue getValue(time_t *timestamp = nullptr);
size_t getDataLength();
void setValue(const uint8_t* data, size_t size);
void setValue(const std::vector<uint8_t>& vec);
void setCallbacks(NimBLECharacteristicCallbacks* pCallbacks);
NimBLEDescriptor* createDescriptor(const char* uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);;
NimBLEDescriptor* createDescriptor(const NimBLEUUID &uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);
NimBLECharacteristicCallbacks* getCallbacks();
/*********************** Template Functions ************************/
/**
* @brief Template to set the characteristic value to <type\>val.
* @param [in] s The value to set.
*/
template<typename T>
void setValue(const T &s) { m_value.setValue<T>(s); }
/**
* @brief Template to convert the characteristic data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] timestamp (Optional) A pointer to a time_t struct to store the time the value was read.
* @param [in] skipSizeCheck (Optional) If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getValue<type>(&timestamp, skipSizeCheck);</tt>
*/
template<typename T>
T getValue(time_t *timestamp = nullptr, bool skipSizeCheck = false) {
return m_value.getValue<T>(timestamp, skipSizeCheck);
}
/**
* @brief Template to send a notification from a class type that has a c_str() and length() method.
* @tparam T The a reference to a class containing the data to send.
* @param[in] value The <type\>value to set.
* @param[in] is_notification if true sends a notification, false sends an indication.
* @details Only used if the <type\> has a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
void
#else
typename std::enable_if<Has_c_str_len<T>::value, void>::type
#endif
notify(const T& value, bool is_notification = true) {
notify((uint8_t*)value.c_str(), value.length(), is_notification);
}
/**
* @brief Template to send an indication from a class type that has a c_str() and length() method.
* @tparam T The a reference to a class containing the data to send.
* @param[in] value The <type\>value to set.
* @details Only used if the <type\> has a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
void
#else
typename std::enable_if<Has_c_str_len<T>::value, void>::type
#endif
indicate(const T& value) {
indicate((uint8_t*)value.c_str(), value.length());
}
private:
friend class NimBLEServer;
friend class NimBLEService;
void setService(NimBLEService *pService);
void setSubscribe(struct ble_gap_event *event);
static int handleGapEvent(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg);
NimBLEUUID m_uuid;
uint16_t m_handle;
uint16_t m_properties;
NimBLECharacteristicCallbacks* m_pCallbacks;
NimBLEService* m_pService;
NimBLEAttValue m_value;
std::vector<NimBLEDescriptor*> m_dscVec;
uint8_t m_removed;
std::vector<std::pair<uint16_t, uint16_t>> m_subscribedVec;
}; // NimBLECharacteristic
/**
* @brief Callbacks that can be associated with a %BLE characteristic to inform of events.
*
* When a server application creates a %BLE characteristic, we may wish to be informed when there is either
* a read or write request to the characteristic's value. An application can register a
* sub-classed instance of this class and will be notified when such an event happens.
*/
class NimBLECharacteristicCallbacks {
public:
/**
* @brief An enum to provide the callback the status of the
* notification/indication, implemented for backward compatibility.
* @deprecated To be removed in the future as the NimBLE stack return code is also provided.
*/
typedef enum {
SUCCESS_INDICATE,
SUCCESS_NOTIFY,
ERROR_INDICATE_DISABLED,
ERROR_NOTIFY_DISABLED,
ERROR_GATT,
ERROR_NO_CLIENT,
ERROR_INDICATE_TIMEOUT,
ERROR_INDICATE_FAILURE
}Status;
virtual ~NimBLECharacteristicCallbacks();
virtual void onRead(NimBLECharacteristic* pCharacteristic);
virtual void onRead(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc);
virtual void onWrite(NimBLECharacteristic* pCharacteristic);
virtual void onWrite(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc);
virtual void onNotify(NimBLECharacteristic* pCharacteristic);
virtual void onStatus(NimBLECharacteristic* pCharacteristic, Status s, int code);
virtual void onSubscribe(NimBLECharacteristic* pCharacteristic, ble_gap_conn_desc* desc, uint16_t subValue);
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */
#endif /*MAIN_NIMBLECHARACTERISTIC_H_*/

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/*
* NimBLEClient.h
*
* Created: on Jan 26 2020
* Author H2zero
*
* Originally:
* BLEClient.h
*
* Created on: Mar 22, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLECLIENT_H_
#define MAIN_NIMBLECLIENT_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLEAddress.h"
#include "NimBLEUUID.h"
#include "NimBLEUtils.h"
#include "NimBLEConnInfo.h"
#include "NimBLEAttValue.h"
#include "NimBLEAdvertisedDevice.h"
#include "NimBLERemoteService.h"
#include <vector>
#include <string>
class NimBLERemoteService;
class NimBLERemoteCharacteristic;
class NimBLEClientCallbacks;
class NimBLEAdvertisedDevice;
/**
* @brief A model of a %BLE client.
*/
class NimBLEClient {
public:
bool connect(NimBLEAdvertisedDevice* device, bool deleteAttributes = true);
bool connect(const NimBLEAddress &address, bool deleteAttributes = true);
bool connect(bool deleteAttributes = true);
int disconnect(uint8_t reason = BLE_ERR_REM_USER_CONN_TERM);
NimBLEAddress getPeerAddress();
void setPeerAddress(const NimBLEAddress &address);
int getRssi();
std::vector<NimBLERemoteService*>* getServices(bool refresh = false);
std::vector<NimBLERemoteService*>::iterator begin();
std::vector<NimBLERemoteService*>::iterator end();
NimBLERemoteService* getService(const char* uuid);
NimBLERemoteService* getService(const NimBLEUUID &uuid);
void deleteServices();
size_t deleteService(const NimBLEUUID &uuid);
NimBLEAttValue getValue(const NimBLEUUID &serviceUUID, const NimBLEUUID &characteristicUUID);
bool setValue(const NimBLEUUID &serviceUUID, const NimBLEUUID &characteristicUUID,
const NimBLEAttValue &value, bool response = false);
NimBLERemoteCharacteristic* getCharacteristic(const uint16_t handle);
bool isConnected();
void setClientCallbacks(NimBLEClientCallbacks *pClientCallbacks,
bool deleteCallbacks = true);
std::string toString();
uint16_t getConnId();
uint16_t getMTU();
bool secureConnection();
void setConnectTimeout(uint8_t timeout);
void setConnectionParams(uint16_t minInterval, uint16_t maxInterval,
uint16_t latency, uint16_t timeout,
uint16_t scanInterval=16, uint16_t scanWindow=16);
void updateConnParams(uint16_t minInterval, uint16_t maxInterval,
uint16_t latency, uint16_t timeout);
void setDataLen(uint16_t tx_octets);
bool discoverAttributes();
NimBLEConnInfo getConnInfo();
int getLastError();
#if CONFIG_BT_NIMBLE_EXT_ADV
void setConnectPhy(uint8_t mask);
#endif
private:
NimBLEClient(const NimBLEAddress &peerAddress);
~NimBLEClient();
friend class NimBLEDevice;
friend class NimBLERemoteService;
static int handleGapEvent(struct ble_gap_event *event, void *arg);
static int serviceDiscoveredCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
const struct ble_gatt_svc *service,
void *arg);
static void dcTimerCb(ble_npl_event *event);
bool retrieveServices(const NimBLEUUID *uuid_filter = nullptr);
NimBLEAddress m_peerAddress;
int m_lastErr;
uint16_t m_conn_id;
bool m_connEstablished;
bool m_deleteCallbacks;
int32_t m_connectTimeout;
NimBLEClientCallbacks* m_pClientCallbacks;
ble_task_data_t* m_pTaskData;
ble_npl_callout m_dcTimer;
#if CONFIG_BT_NIMBLE_EXT_ADV
uint8_t m_phyMask;
#endif
std::vector<NimBLERemoteService*> m_servicesVector;
private:
friend class NimBLEClientCallbacks;
ble_gap_conn_params m_pConnParams;
}; // class NimBLEClient
/**
* @brief Callbacks associated with a %BLE client.
*/
class NimBLEClientCallbacks {
public:
virtual ~NimBLEClientCallbacks() {};
/**
* @brief Called after client connects.
* @param [in] pClient A pointer to the calling client object.
*/
virtual void onConnect(NimBLEClient* pClient);
/**
* @brief Called when disconnected from the server.
* @param [in] pClient A pointer to the calling client object.
*/
virtual void onDisconnect(NimBLEClient* pClient);
/**
* @brief Called when server requests to update the connection parameters.
* @param [in] pClient A pointer to the calling client object.
* @param [in] params A pointer to the struct containing the connection parameters requested.
* @return True to accept the parameters.
*/
virtual bool onConnParamsUpdateRequest(NimBLEClient* pClient, const ble_gap_upd_params* params);
/**
* @brief Called when server requests a passkey for pairing.
* @return The passkey to be sent to the server.
*/
virtual uint32_t onPassKeyRequest();
/*virtual void onPassKeyNotify(uint32_t pass_key);
virtual bool onSecurityRequest();*/
/**
* @brief Called when the pairing procedure is complete.
* @param [in] desc A pointer to the struct containing the connection information.\n
* This can be used to check the status of the connection encryption/pairing.
*/
virtual void onAuthenticationComplete(ble_gap_conn_desc* desc);
/**
* @brief Called when using numeric comparision for pairing.
* @param [in] pin The pin to compare with the server.
* @return True to accept the pin.
*/
virtual bool onConfirmPIN(uint32_t pin);
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */
#endif /* MAIN_NIMBLECLIENT_H_ */

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#ifndef NIMBLECONNINFO_H_
#define NIMBLECONNINFO_H_
#include "NimBLEAddress.h"
/**
* @brief Connection information.
*/
class NimBLEConnInfo {
friend class NimBLEServer;
friend class NimBLEClient;
ble_gap_conn_desc m_desc;
NimBLEConnInfo() { m_desc = {}; }
NimBLEConnInfo(ble_gap_conn_desc desc) { m_desc = desc; }
public:
/** @brief Gets the over-the-air address of the connected peer */
NimBLEAddress getAddress() { return NimBLEAddress(m_desc.peer_ota_addr); }
/** @brief Gets the ID address of the connected peer */
NimBLEAddress getIdAddress() { return NimBLEAddress(m_desc.peer_id_addr); }
/** @brief Gets the connection handle of the connected peer */
uint16_t getConnHandle() { return m_desc.conn_handle; }
/** @brief Gets the connection interval for this connection (in 1.25ms units) */
uint16_t getConnInterval() { return m_desc.conn_itvl; }
/** @brief Gets the supervision timeout for this connection (in 10ms units) */
uint16_t getConnTimeout() { return m_desc.supervision_timeout; }
/** @brief Gets the allowable latency for this connection (unit = number of intervals) */
uint16_t getConnLatency() { return m_desc.conn_latency; }
/** @brief Gets the maximum transmission unit size for this connection (in bytes) */
uint16_t getMTU() { return ble_att_mtu(m_desc.conn_handle); }
/** @brief Check if we are in the master role in this connection */
bool isMaster() { return (m_desc.role == BLE_GAP_ROLE_MASTER); }
/** @brief Check if we are in the slave role in this connection */
bool isSlave() { return (m_desc.role == BLE_GAP_ROLE_SLAVE); }
/** @brief Check if we are connected to a bonded peer */
bool isBonded() { return (m_desc.sec_state.bonded == 1); }
/** @brief Check if the connection in encrypted */
bool isEncrypted() { return (m_desc.sec_state.encrypted == 1); }
/** @brief Check if the the connection has been authenticated */
bool isAuthenticated() { return (m_desc.sec_state.authenticated == 1); }
/** @brief Gets the key size used to encrypt the connection */
uint8_t getSecKeySize() { return m_desc.sec_state.key_size; }
};
#endif

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/*
* NimBLEDescriptor.cpp
*
* Created: on March 10, 2020
* Author H2zero
*
* Originally:
*
* BLEDescriptor.cpp
*
* Created on: Jun 22, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEService.h"
#include "NimBLEDescriptor.h"
#include "NimBLELog.h"
#include <string>
#define NULL_HANDLE (0xffff)
static const char* LOG_TAG = "NimBLEDescriptor";
static NimBLEDescriptorCallbacks defaultCallbacks;
/**
* @brief Construct a descriptor
* @param [in] uuid - UUID (const char*) for the descriptor.
* @param [in] properties - Properties for the descriptor.
* @param [in] max_len - The maximum length in bytes that the descriptor value can hold. (Default: 512 bytes for esp32, 20 for all others).
* @param [in] pCharacteristic - pointer to the characteristic instance this descriptor belongs to.
*/
NimBLEDescriptor::NimBLEDescriptor(const char* uuid, uint16_t properties, uint16_t max_len,
NimBLECharacteristic* pCharacteristic)
: NimBLEDescriptor(NimBLEUUID(uuid), properties, max_len, pCharacteristic) {
}
/**
* @brief Construct a descriptor
* @param [in] uuid - UUID (const char*) for the descriptor.
* @param [in] properties - Properties for the descriptor.
* @param [in] max_len - The maximum length in bytes that the descriptor value can hold. (Default: 512 bytes for esp32, 20 for all others).
* @param [in] pCharacteristic - pointer to the characteristic instance this descriptor belongs to.
*/
NimBLEDescriptor::NimBLEDescriptor(NimBLEUUID uuid, uint16_t properties, uint16_t max_len,
NimBLECharacteristic* pCharacteristic)
: m_value(std::min(CONFIG_NIMBLE_CPP_ATT_VALUE_INIT_LENGTH , (int)max_len), max_len) {
m_uuid = uuid;
m_handle = NULL_HANDLE; // Handle is initially unknown.
m_pCharacteristic = pCharacteristic;
m_pCallbacks = &defaultCallbacks; // No initial callback.
m_properties = 0;
m_removed = 0;
if (properties & BLE_GATT_CHR_F_READ) { // convert uint16_t properties to uint8_t
m_properties |= BLE_ATT_F_READ;
}
if (properties & (BLE_GATT_CHR_F_WRITE_NO_RSP | BLE_GATT_CHR_F_WRITE)) {
m_properties |= BLE_ATT_F_WRITE;
}
if (properties & BLE_GATT_CHR_F_READ_ENC) {
m_properties |= BLE_ATT_F_READ_ENC;
}
if (properties & BLE_GATT_CHR_F_READ_AUTHEN) {
m_properties |= BLE_ATT_F_READ_AUTHEN;
}
if (properties & BLE_GATT_CHR_F_READ_AUTHOR) {
m_properties |= BLE_ATT_F_READ_AUTHOR;
}
if (properties & BLE_GATT_CHR_F_WRITE_ENC) {
m_properties |= BLE_ATT_F_WRITE_ENC;
}
if (properties & BLE_GATT_CHR_F_WRITE_AUTHEN) {
m_properties |= BLE_ATT_F_WRITE_AUTHEN;
}
if (properties & BLE_GATT_CHR_F_WRITE_AUTHOR) {
m_properties |= BLE_ATT_F_WRITE_AUTHOR;
}
} // NimBLEDescriptor
/**
* @brief NimBLEDescriptor destructor.
*/
NimBLEDescriptor::~NimBLEDescriptor() {
} // ~NimBLEDescriptor
/**
* @brief Get the BLE handle for this descriptor.
* @return The handle for this descriptor.
*/
uint16_t NimBLEDescriptor::getHandle() {
return m_handle;
} // getHandle
/**
* @brief Get the length of the value of this descriptor.
* @return The length (in bytes) of the value of this descriptor.
*/
size_t NimBLEDescriptor::getLength() {
return m_value.size();
} // getLength
/**
* @brief Get the UUID of the descriptor.
*/
NimBLEUUID NimBLEDescriptor::getUUID() {
return m_uuid;
} // getUUID
/**
* @brief Get the value of this descriptor.
* @return The NimBLEAttValue of this descriptor.
*/
NimBLEAttValue NimBLEDescriptor::getValue(time_t *timestamp) {
if (timestamp != nullptr) {
m_value.getValue(timestamp);
}
return m_value;
} // getValue
/**
* @brief Get the value of this descriptor as a string.
* @return A std::string instance containing a copy of the descriptor's value.
*/
std::string NimBLEDescriptor::getStringValue() {
return std::string(m_value);
}
/**
* @brief Get the characteristic this descriptor belongs to.
* @return A pointer to the characteristic this descriptor belongs to.
*/
NimBLECharacteristic* NimBLEDescriptor::getCharacteristic() {
return m_pCharacteristic;
} // getCharacteristic
int NimBLEDescriptor::handleGapEvent(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg) {
(void)conn_handle;
(void)attr_handle;
const ble_uuid_t *uuid;
int rc;
struct ble_gap_conn_desc desc;
NimBLEDescriptor* pDescriptor = (NimBLEDescriptor*)arg;
NIMBLE_LOGD(LOG_TAG, "Descriptor %s %s event", pDescriptor->getUUID().toString().c_str(),
ctxt->op == BLE_GATT_ACCESS_OP_READ_DSC ? "Read" : "Write");
uuid = ctxt->chr->uuid;
if(ble_uuid_cmp(uuid, &pDescriptor->getUUID().getNative()->u) == 0){
switch(ctxt->op) {
case BLE_GATT_ACCESS_OP_READ_DSC: {
rc = ble_gap_conn_find(conn_handle, &desc);
assert(rc == 0);
// If the packet header is only 8 bytes this is a follow up of a long read
// so we don't want to call the onRead() callback again.
if(ctxt->om->om_pkthdr_len > 8 ||
pDescriptor->m_value.size() <= (ble_att_mtu(desc.conn_handle) - 3)) {
pDescriptor->m_pCallbacks->onRead(pDescriptor);
}
ble_npl_hw_enter_critical();
rc = os_mbuf_append(ctxt->om, pDescriptor->m_value.data(), pDescriptor->m_value.size());
ble_npl_hw_exit_critical(0);
return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
}
case BLE_GATT_ACCESS_OP_WRITE_DSC: {
uint16_t att_max_len = pDescriptor->m_value.max_size();
if (ctxt->om->om_len > att_max_len) {
return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
}
uint8_t buf[att_max_len];
size_t len = ctxt->om->om_len;
memcpy(buf, ctxt->om->om_data,len);
os_mbuf *next;
next = SLIST_NEXT(ctxt->om, om_next);
while(next != NULL){
if((len + next->om_len) > att_max_len) {
return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
}
memcpy(&buf[len], next->om_data, next->om_len);
len += next->om_len;
next = SLIST_NEXT(next, om_next);
}
pDescriptor->setValue(buf, len);
pDescriptor->m_pCallbacks->onWrite(pDescriptor);
return 0;
}
default:
break;
}
}
return BLE_ATT_ERR_UNLIKELY;
}
/**
* @brief Set the callback handlers for this descriptor.
* @param [in] pCallbacks An instance of a callback structure used to define any callbacks for the descriptor.
*/
void NimBLEDescriptor::setCallbacks(NimBLEDescriptorCallbacks* pCallbacks) {
if (pCallbacks != nullptr){
m_pCallbacks = pCallbacks;
} else {
m_pCallbacks = &defaultCallbacks;
}
} // setCallbacks
/**
* @brief Set the handle of this descriptor.
* Set the handle of this descriptor to be the supplied value.
* @param [in] handle The handle to be associated with this descriptor.
* @return N/A.
*/
void NimBLEDescriptor::setHandle(uint16_t handle) {
NIMBLE_LOGD(LOG_TAG, ">> setHandle(0x%.2x): Setting descriptor handle to be 0x%.2x", handle, handle);
m_handle = handle;
NIMBLE_LOGD(LOG_TAG, "<< setHandle()");
} // setHandle
/**
* @brief Set the value of the descriptor.
* @param [in] data The data to set for the descriptor.
* @param [in] length The length of the data in bytes.
*/
void NimBLEDescriptor::setValue(const uint8_t* data, size_t length) {
m_value.setValue(data, length);
} // setValue
/**
* @brief Set the value of the descriptor from a `std::vector<uint8_t>`.\n
* @param [in] vec The std::vector<uint8_t> reference to set the descriptor value from.
*/
void NimBLEDescriptor::setValue(const std::vector<uint8_t>& vec) {
return setValue((uint8_t*)&vec[0], vec.size());
} // setValue
/**
* @brief Set the characteristic this descriptor belongs to.
* @param [in] pChar A pointer to the characteristic this descriptor belongs to.
*/
void NimBLEDescriptor::setCharacteristic(NimBLECharacteristic* pChar) {
m_pCharacteristic = pChar;
} // setCharacteristic
/**
* @brief Return a string representation of the descriptor.
* @return A string representation of the descriptor.
*/
std::string NimBLEDescriptor::toString() {
char hex[5];
snprintf(hex, sizeof(hex), "%04x", m_handle);
std::string res = "UUID: " + m_uuid.toString() + ", handle: 0x" + hex;
return res;
} // toString
NimBLEDescriptorCallbacks::~NimBLEDescriptorCallbacks() {}
/**
* @brief Callback function to support a read request.
* @param [in] pDescriptor The descriptor that is the source of the event.
*/
void NimBLEDescriptorCallbacks::onRead(NimBLEDescriptor* pDescriptor) {
(void)pDescriptor;
NIMBLE_LOGD("NimBLEDescriptorCallbacks", "onRead: default");
} // onRead
/**
* @brief Callback function to support a write request.
* @param [in] pDescriptor The descriptor that is the source of the event.
*/
void NimBLEDescriptorCallbacks::onWrite(NimBLEDescriptor* pDescriptor) {
(void)pDescriptor;
NIMBLE_LOGD("NimBLEDescriptorCallbacks", "onWrite: default");
} // onWrite
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

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/*
* NimBLEDescriptor.h
*
* Created: on March 10, 2020
* Author H2zero
*
* Originally:
*
* BLEDescriptor.h
*
* Created on: Jun 22, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLEDESCRIPTOR_H_
#define MAIN_NIMBLEDESCRIPTOR_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLECharacteristic.h"
#include "NimBLEUUID.h"
#include "NimBLEAttValue.h"
#include <string>
class NimBLEService;
class NimBLECharacteristic;
class NimBLEDescriptorCallbacks;
/**
* @brief A model of a %BLE descriptor.
*/
class NimBLEDescriptor {
public:
NimBLEDescriptor(const char* uuid, uint16_t properties,
uint16_t max_len,
NimBLECharacteristic* pCharacteristic = nullptr);
NimBLEDescriptor(NimBLEUUID uuid, uint16_t properties,
uint16_t max_len,
NimBLECharacteristic* pCharacteristic = nullptr);
~NimBLEDescriptor();
uint16_t getHandle();
NimBLEUUID getUUID();
std::string toString();
void setCallbacks(NimBLEDescriptorCallbacks* pCallbacks);
NimBLECharacteristic* getCharacteristic();
size_t getLength();
NimBLEAttValue getValue(time_t *timestamp = nullptr);
std::string getStringValue();
void setValue(const uint8_t* data, size_t size);
void setValue(const std::vector<uint8_t>& vec);
/*********************** Template Functions ************************/
/**
* @brief Template to set the characteristic value to <type\>val.
* @param [in] s The value to set.
*/
template<typename T>
void setValue(const T &s) { m_value.setValue<T>(s); }
/**
* @brief Template to convert the descriptor data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] timestamp (Optional) A pointer to a time_t struct to store the time the value was read.
* @param [in] skipSizeCheck (Optional) If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getValue<type>(&timestamp, skipSizeCheck);</tt>
*/
template<typename T>
T getValue(time_t *timestamp = nullptr, bool skipSizeCheck = false) {
return m_value.getValue<T>(timestamp, skipSizeCheck);
}
private:
friend class NimBLECharacteristic;
friend class NimBLEService;
friend class NimBLE2904;
static int handleGapEvent(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg);
void setHandle(uint16_t handle);
void setCharacteristic(NimBLECharacteristic* pChar);
NimBLEUUID m_uuid;
uint16_t m_handle;
NimBLEDescriptorCallbacks* m_pCallbacks;
NimBLECharacteristic* m_pCharacteristic;
uint8_t m_properties;
NimBLEAttValue m_value;
uint8_t m_removed;
}; // NimBLEDescriptor
/**
* @brief Callbacks that can be associated with a %BLE descriptors to inform of events.
*
* When a server application creates a %BLE descriptor, we may wish to be informed when there is either
* a read or write request to the descriptors value. An application can register a
* sub-classed instance of this class and will be notified when such an event happens.
*/
class NimBLEDescriptorCallbacks {
public:
virtual ~NimBLEDescriptorCallbacks();
virtual void onRead(NimBLEDescriptor* pDescriptor);
virtual void onWrite(NimBLEDescriptor* pDescriptor);
};
#include "NimBLE2904.h"
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */
#endif /* MAIN_NIMBLEDESCRIPTOR_H_ */

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/*
* NimBLEDevice.h
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEDevice.h
*
* Created on: Mar 16, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLEDEVICE_H_
#define MAIN_NIMBLEDEVICE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
#include "NimBLEScan.h"
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER)
# if CONFIG_BT_NIMBLE_EXT_ADV
# include "NimBLEExtAdvertising.h"
# else
# include "NimBLEAdvertising.h"
# endif
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLEClient.h"
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEServer.h"
#endif
#include "NimBLEUtils.h"
#include "NimBLESecurity.h"
#include "NimBLEAddress.h"
#ifdef ESP_PLATFORM
# include "esp_bt.h"
#endif
#include <map>
#include <string>
#include <list>
#define BLEDevice NimBLEDevice
#define BLEClient NimBLEClient
#define BLERemoteService NimBLERemoteService
#define BLERemoteCharacteristic NimBLERemoteCharacteristic
#define BLERemoteDescriptor NimBLERemoteDescriptor
#define BLEAdvertisedDevice NimBLEAdvertisedDevice
#define BLEScan NimBLEScan
#define BLEUUID NimBLEUUID
#define BLESecurity NimBLESecurity
#define BLESecurityCallbacks NimBLESecurityCallbacks
#define BLEAddress NimBLEAddress
#define BLEUtils NimBLEUtils
#define BLEClientCallbacks NimBLEClientCallbacks
#define BLEAdvertisedDeviceCallbacks NimBLEAdvertisedDeviceCallbacks
#define BLEScanResults NimBLEScanResults
#define BLEServer NimBLEServer
#define BLEService NimBLEService
#define BLECharacteristic NimBLECharacteristic
#define BLEAdvertising NimBLEAdvertising
#define BLEServerCallbacks NimBLEServerCallbacks
#define BLECharacteristicCallbacks NimBLECharacteristicCallbacks
#define BLEAdvertisementData NimBLEAdvertisementData
#define BLEDescriptor NimBLEDescriptor
#define BLE2902 NimBLE2902
#define BLE2904 NimBLE2904
#define BLEDescriptorCallbacks NimBLEDescriptorCallbacks
#define BLEBeacon NimBLEBeacon
#define BLEEddystoneTLM NimBLEEddystoneTLM
#define BLEEddystoneURL NimBLEEddystoneURL
#ifdef CONFIG_BT_NIMBLE_MAX_CONNECTIONS
#define NIMBLE_MAX_CONNECTIONS CONFIG_BT_NIMBLE_MAX_CONNECTIONS
#else
#define NIMBLE_MAX_CONNECTIONS CONFIG_NIMBLE_MAX_CONNECTIONS
#endif
typedef int (*gap_event_handler)(ble_gap_event *event, void *arg);
extern "C" void ble_store_config_init(void);
/**
* @brief A model of a %BLE Device from which all the BLE roles are created.
*/
class NimBLEDevice {
public:
static void init(const std::string &deviceName);
static void deinit(bool clearAll = false);
static void setDeviceName(const std::string &deviceName);
static bool getInitialized();
static NimBLEAddress getAddress();
static std::string toString();
static bool whiteListAdd(const NimBLEAddress & address);
static bool whiteListRemove(const NimBLEAddress & address);
static bool onWhiteList(const NimBLEAddress & address);
static size_t getWhiteListCount();
static NimBLEAddress getWhiteListAddress(size_t index);
#if defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
static NimBLEScan* getScan();
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
static NimBLEServer* createServer();
static NimBLEServer* getServer();
#endif
#ifdef ESP_PLATFORM
static void setPower(esp_power_level_t powerLevel, esp_ble_power_type_t powerType=ESP_BLE_PWR_TYPE_DEFAULT);
static int getPower(esp_ble_power_type_t powerType=ESP_BLE_PWR_TYPE_DEFAULT);
static void setOwnAddrType(uint8_t own_addr_type, bool useNRPA=false);
static void setScanDuplicateCacheSize(uint16_t cacheSize);
static void setScanFilterMode(uint8_t type);
#else
static void setPower(int dbm);
static int getPower();
#endif
static void setCustomGapHandler(gap_event_handler handler);
static void setSecurityAuth(bool bonding, bool mitm, bool sc);
static void setSecurityAuth(uint8_t auth_req);
static void setSecurityIOCap(uint8_t iocap);
static void setSecurityInitKey(uint8_t init_key);
static void setSecurityRespKey(uint8_t init_key);
static void setSecurityPasskey(uint32_t pin);
static uint32_t getSecurityPasskey();
static void setSecurityCallbacks(NimBLESecurityCallbacks* pCallbacks);
static int startSecurity(uint16_t conn_id);
static int setMTU(uint16_t mtu);
static uint16_t getMTU();
static bool isIgnored(const NimBLEAddress &address);
static void addIgnored(const NimBLEAddress &address);
static void removeIgnored(const NimBLEAddress &address);
#if defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER)
# if CONFIG_BT_NIMBLE_EXT_ADV
static NimBLEExtAdvertising* getAdvertising();
static bool startAdvertising(uint8_t inst_id,
int duration = 0,
int max_events = 0);
static bool stopAdvertising(uint8_t inst_id);
static bool stopAdvertising();
# endif
# if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
static NimBLEAdvertising* getAdvertising();
static bool startAdvertising();
static bool stopAdvertising();
# endif
#endif
#if defined( CONFIG_BT_NIMBLE_ROLE_CENTRAL)
static NimBLEClient* createClient(NimBLEAddress peerAddress = NimBLEAddress(""));
static bool deleteClient(NimBLEClient* pClient);
static NimBLEClient* getClientByID(uint16_t conn_id);
static NimBLEClient* getClientByPeerAddress(const NimBLEAddress &peer_addr);
static NimBLEClient* getDisconnectedClient();
static size_t getClientListSize();
static std::list<NimBLEClient*>* getClientList();
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL) || defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
static bool deleteBond(const NimBLEAddress &address);
static int getNumBonds();
static bool isBonded(const NimBLEAddress &address);
static void deleteAllBonds();
static NimBLEAddress getBondedAddress(int index);
#endif
private:
#if defined( CONFIG_BT_NIMBLE_ROLE_CENTRAL)
friend class NimBLEClient;
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
friend class NimBLEScan;
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
friend class NimBLEServer;
friend class NimBLECharacteristic;
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER)
friend class NimBLEAdvertising;
# if CONFIG_BT_NIMBLE_EXT_ADV
friend class NimBLEExtAdvertising;
friend class NimBLEExtAdvertisement;
# endif
#endif
static void onReset(int reason);
static void onSync(void);
static void host_task(void *param);
static bool m_synced;
#if defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
static NimBLEScan* m_pScan;
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
static NimBLEServer* m_pServer;
#endif
#if defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER)
# if CONFIG_BT_NIMBLE_EXT_ADV
static NimBLEExtAdvertising* m_bleAdvertising;
# else
static NimBLEAdvertising* m_bleAdvertising;
# endif
#endif
#if defined( CONFIG_BT_NIMBLE_ROLE_CENTRAL)
static std::list <NimBLEClient*> m_cList;
#endif
static std::list <NimBLEAddress> m_ignoreList;
static NimBLESecurityCallbacks* m_securityCallbacks;
static uint32_t m_passkey;
static ble_gap_event_listener m_listener;
static gap_event_handler m_customGapHandler;
static uint8_t m_own_addr_type;
#ifdef ESP_PLATFORM
static uint16_t m_scanDuplicateSize;
static uint8_t m_scanFilterMode;
#endif
static std::vector<NimBLEAddress> m_whiteList;
};
#endif // CONFIG_BT_ENABLED
#endif // MAIN_NIMBLEDEVICE_H_

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/*
* NimBLEEddystoneTLM.cpp
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEEddystoneTLM.cpp
*
* Created on: Mar 12, 2018
* Author: pcbreflux
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include "NimBLEEddystoneTLM.h"
#include "NimBLELog.h"
#include <stdio.h>
#include <cstring>
#define ENDIAN_CHANGE_U16(x) ((((x)&0xFF00)>>8) + (((x)&0xFF)<<8))
#define ENDIAN_CHANGE_U32(x) ((((x)&0xFF000000)>>24) + (((x)&0x00FF0000)>>8)) + ((((x)&0xFF00)<<8) + (((x)&0xFF)<<24))
static const char LOG_TAG[] = "NimBLEEddystoneTLM";
/**
* @brief Construct a default EddystoneTLM beacon object.
*/
NimBLEEddystoneTLM::NimBLEEddystoneTLM() {
beaconUUID = 0xFEAA;
m_eddystoneData.frameType = EDDYSTONE_TLM_FRAME_TYPE;
m_eddystoneData.version = 0;
m_eddystoneData.volt = 3300; // 3300mV = 3.3V
m_eddystoneData.temp = (uint16_t) ((float) 23.00 * 256); // 8.8 fixed format
m_eddystoneData.advCount = 0;
m_eddystoneData.tmil = 0;
} // NimBLEEddystoneTLM
/**
* @brief Retrieve the data that is being advertised.
* @return The advertised data.
*/
std::string NimBLEEddystoneTLM::getData() {
return std::string((char*) &m_eddystoneData, sizeof(m_eddystoneData));
} // getData
/**
* @brief Get the UUID being advertised.
* @return The UUID advertised.
*/
NimBLEUUID NimBLEEddystoneTLM::getUUID() {
return NimBLEUUID(beaconUUID);
} // getUUID
/**
* @brief Get the version being advertised.
* @return The version number.
*/
uint8_t NimBLEEddystoneTLM::getVersion() {
return m_eddystoneData.version;
} // getVersion
/**
* @brief Get the battery voltage.
* @return The battery voltage.
*/
uint16_t NimBLEEddystoneTLM::getVolt() {
return ENDIAN_CHANGE_U16(m_eddystoneData.volt);
} // getVolt
/**
* @brief Get the temperature being advertised.
* @return The temperature value.
*/
float NimBLEEddystoneTLM::getTemp() {
return ENDIAN_CHANGE_U16(m_eddystoneData.temp) / 256.0f;
} // getTemp
/**
* @brief Get the count of advertisements sent.
* @return The number of advertisements.
*/
uint32_t NimBLEEddystoneTLM::getCount() {
return ENDIAN_CHANGE_U32(m_eddystoneData.advCount);
} // getCount
/**
* @brief Get the advertisement time.
* @return The advertisement time.
*/
uint32_t NimBLEEddystoneTLM::getTime() {
return (ENDIAN_CHANGE_U32(m_eddystoneData.tmil)) / 10;
} // getTime
/**
* @brief Get a string representation of the beacon.
* @return The string representation.
*/
std::string NimBLEEddystoneTLM::toString() {
std::string out = "";
uint32_t rawsec = ENDIAN_CHANGE_U32(m_eddystoneData.tmil);
char val[12];
out += "Version "; // + std::string(m_eddystoneData.version);
snprintf(val, sizeof(val), "%d", m_eddystoneData.version);
out += val;
out += "\n";
out += "Battery Voltage "; // + ENDIAN_CHANGE_U16(m_eddystoneData.volt);
snprintf(val, sizeof(val), "%d", ENDIAN_CHANGE_U16(m_eddystoneData.volt));
out += val;
out += " mV\n";
out += "Temperature ";
snprintf(val, sizeof(val), "%.2f", ENDIAN_CHANGE_U16(m_eddystoneData.temp) / 256.0f);
out += val;
out += " C\n";
out += "Adv. Count ";
snprintf(val, sizeof(val), "%" PRIu32, ENDIAN_CHANGE_U32(m_eddystoneData.advCount));
out += val;
out += "\n";
out += "Time in seconds ";
snprintf(val, sizeof(val), "%" PRIu32, rawsec/10);
out += val;
out += "\n";
out += "Time ";
snprintf(val, sizeof(val), "%04" PRIu32, rawsec / 864000);
out += val;
out += ".";
snprintf(val, sizeof(val), "%02" PRIu32, (rawsec / 36000) % 24);
out += val;
out += ":";
snprintf(val, sizeof(val), "%02" PRIu32, (rawsec / 600) % 60);
out += val;
out += ":";
snprintf(val, sizeof(val), "%02" PRIu32, (rawsec / 10) % 60);
out += val;
out += "\n";
return out;
} // toString
/**
* @brief Set the raw data for the beacon advertisement.
* @param [in] data The raw data to advertise.
*/
void NimBLEEddystoneTLM::setData(const std::string &data) {
if (data.length() != sizeof(m_eddystoneData)) {
NIMBLE_LOGE(LOG_TAG, "Unable to set the data ... length passed in was %d and expected %d",
data.length(), sizeof(m_eddystoneData));
return;
}
memcpy(&m_eddystoneData, data.data(), data.length());
} // setData
/**
* @brief Set the UUID to advertise.
* @param [in] l_uuid The UUID.
*/
void NimBLEEddystoneTLM::setUUID(const NimBLEUUID &l_uuid) {
beaconUUID = l_uuid.getNative()->u16.value;
} // setUUID
/**
* @brief Set the version to advertise.
* @param [in] version The version number.
*/
void NimBLEEddystoneTLM::setVersion(uint8_t version) {
m_eddystoneData.version = version;
} // setVersion
/**
* @brief Set the battery voltage to advertise.
* @param [in] volt The voltage in millivolts.
*/
void NimBLEEddystoneTLM::setVolt(uint16_t volt) {
m_eddystoneData.volt = volt;
} // setVolt
/**
* @brief Set the temperature to advertise.
* @param [in] temp The temperature value.
*/
void NimBLEEddystoneTLM::setTemp(float temp) {
m_eddystoneData.temp = (uint16_t)temp;
} // setTemp
/**
* @brief Set the advertisement count.
* @param [in] advCount The advertisement number.
*/
void NimBLEEddystoneTLM::setCount(uint32_t advCount) {
m_eddystoneData.advCount = advCount;
} // setCount
/**
* @brief Set the advertisement time.
* @param [in] tmil The advertisement time in milliseconds.
*/
void NimBLEEddystoneTLM::setTime(uint32_t tmil) {
m_eddystoneData.tmil = tmil;
} // setTime
#endif

61
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@ -1,61 +0,0 @@
/*
* NimBLEEddystoneTLM.h
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEEddystoneTLM.h
*
* Created on: Mar 12, 2018
* Author: pcbreflux
*/
#ifndef _NimBLEEddystoneTLM_H_
#define _NimBLEEddystoneTLM_H_
#include "NimBLEUUID.h"
#include <string>
#define EDDYSTONE_TLM_FRAME_TYPE 0x20
/**
* @brief Representation of a beacon.
* See:
* * https://github.com/google/eddystone
*/
class NimBLEEddystoneTLM {
public:
NimBLEEddystoneTLM();
std::string getData();
NimBLEUUID getUUID();
uint8_t getVersion();
uint16_t getVolt();
float getTemp();
uint32_t getCount();
uint32_t getTime();
std::string toString();
void setData(const std::string &data);
void setUUID(const NimBLEUUID &l_uuid);
void setVersion(uint8_t version);
void setVolt(uint16_t volt);
void setTemp(float temp);
void setCount(uint32_t advCount);
void setTime(uint32_t tmil);
private:
uint16_t beaconUUID;
struct {
uint8_t frameType;
uint8_t version;
uint16_t volt;
uint16_t temp;
uint32_t advCount;
uint32_t tmil;
} __attribute__((packed)) m_eddystoneData;
}; // NimBLEEddystoneTLM
#endif /* _NimBLEEddystoneTLM_H_ */

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/*
* NimBLEEddystoneURL.cpp
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEEddystoneURL.cpp
*
* Created on: Mar 12, 2018
* Author: pcbreflux
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include "NimBLEEddystoneURL.h"
#include "NimBLELog.h"
#include <cstring>
static const char LOG_TAG[] = "NimBLEEddystoneURL";
/**
* @brief Construct a default EddystoneURL beacon object.
*/
NimBLEEddystoneURL::NimBLEEddystoneURL() {
beaconUUID = 0xFEAA;
lengthURL = 0;
m_eddystoneData.frameType = EDDYSTONE_URL_FRAME_TYPE;
m_eddystoneData.advertisedTxPower = 0;
memset(m_eddystoneData.url, 0, sizeof(m_eddystoneData.url));
} // BLEEddystoneURL
/**
* @brief Retrieve the data that is being advertised.
* @return The advertised data.
*/
std::string NimBLEEddystoneURL::getData() {
return std::string((char*) &m_eddystoneData, sizeof(m_eddystoneData));
} // getData
/**
* @brief Get the UUID being advertised.
* @return The UUID advertised.
*/
NimBLEUUID NimBLEEddystoneURL::getUUID() {
return NimBLEUUID(beaconUUID);
} // getUUID
/**
* @brief Get the transmit power being advertised.
* @return The transmit power.
*/
int8_t NimBLEEddystoneURL::getPower() {
return m_eddystoneData.advertisedTxPower;
} // getPower
/**
* @brief Get the raw URL being advertised.
* @return The raw URL.
*/
std::string NimBLEEddystoneURL::getURL() {
return std::string((char*) &m_eddystoneData.url, sizeof(m_eddystoneData.url));
} // getURL
/**
* @brief Get the full URL being advertised.
* @return The full URL.
*/
std::string NimBLEEddystoneURL::getDecodedURL() {
std::string decodedURL = "";
switch (m_eddystoneData.url[0]) {
case 0x00:
decodedURL += "http://www.";
break;
case 0x01:
decodedURL += "https://www.";
break;
case 0x02:
decodedURL += "http://";
break;
case 0x03:
decodedURL += "https://";
break;
default:
decodedURL += m_eddystoneData.url[0];
}
for (int i = 1; i < lengthURL; i++) {
if (m_eddystoneData.url[i] > 33 && m_eddystoneData.url[i] < 127) {
decodedURL += m_eddystoneData.url[i];
} else {
switch (m_eddystoneData.url[i]) {
case 0x00:
decodedURL += ".com/";
break;
case 0x01:
decodedURL += ".org/";
break;
case 0x02:
decodedURL += ".edu/";
break;
case 0x03:
decodedURL += ".net/";
break;
case 0x04:
decodedURL += ".info/";
break;
case 0x05:
decodedURL += ".biz/";
break;
case 0x06:
decodedURL += ".gov/";
break;
case 0x07:
decodedURL += ".com";
break;
case 0x08:
decodedURL += ".org";
break;
case 0x09:
decodedURL += ".edu";
break;
case 0x0A:
decodedURL += ".net";
break;
case 0x0B:
decodedURL += ".info";
break;
case 0x0C:
decodedURL += ".biz";
break;
case 0x0D:
decodedURL += ".gov";
break;
default:
break;
}
}
}
return decodedURL;
} // getDecodedURL
/**
* @brief Set the raw data for the beacon advertisement.
* @param [in] data The raw data to advertise.
*/
void NimBLEEddystoneURL::setData(const std::string &data) {
if (data.length() > sizeof(m_eddystoneData)) {
NIMBLE_LOGE(LOG_TAG, "Unable to set the data ... length passed in was %d and max expected %d",
data.length(), sizeof(m_eddystoneData));
return;
}
memset(&m_eddystoneData, 0, sizeof(m_eddystoneData));
memcpy(&m_eddystoneData, data.data(), data.length());
lengthURL = data.length() - (sizeof(m_eddystoneData) - sizeof(m_eddystoneData.url));
} // setData
/**
* @brief Set the UUID to advertise.
* @param [in] l_uuid The UUID.
*/
void NimBLEEddystoneURL::setUUID(const NimBLEUUID &l_uuid) {
beaconUUID = l_uuid.getNative()->u16.value;
} // setUUID
/**
* @brief Set the transmit power to advertise.
* @param [in] advertisedTxPower The transmit power level.
*/
void NimBLEEddystoneURL::setPower(int8_t advertisedTxPower) {
m_eddystoneData.advertisedTxPower = advertisedTxPower;
} // setPower
/**
* @brief Set the URL to advertise.
* @param [in] url The URL.
*/
void NimBLEEddystoneURL::setURL(const std::string &url) {
if (url.length() > sizeof(m_eddystoneData.url)) {
NIMBLE_LOGE(LOG_TAG, "Unable to set the url ... length passed in was %d and max expected %d",
url.length(), sizeof(m_eddystoneData.url));
return;
}
memset(m_eddystoneData.url, 0, sizeof(m_eddystoneData.url));
memcpy(m_eddystoneData.url, url.data(), url.length());
lengthURL = url.length();
} // setURL
#endif

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@ -1,52 +0,0 @@
/*
* NimBLEEddystoneURL.h
*
* Created: on March 15 2020
* Author H2zero
*
* Originally:
*
* BLEEddystoneURL.h
*
* Created on: Mar 12, 2018
* Author: pcbreflux
*/
#ifndef _NIMBLEEddystoneURL_H_
#define _NIMBLEEddystoneURL_H_
#include "NimBLEUUID.h"
#include <string>
#define EDDYSTONE_URL_FRAME_TYPE 0x10
/**
* @brief Representation of a beacon.
* See:
* * https://github.com/google/eddystone
*/
class NimBLEEddystoneURL {
public:
NimBLEEddystoneURL();
std::string getData();
NimBLEUUID getUUID();
int8_t getPower();
std::string getURL();
std::string getDecodedURL();
void setData(const std::string &data);
void setUUID(const NimBLEUUID &l_uuid);
void setPower(int8_t advertisedTxPower);
void setURL(const std::string &url);
private:
uint16_t beaconUUID;
uint8_t lengthURL;
struct {
uint8_t frameType;
int8_t advertisedTxPower;
uint8_t url[16];
} __attribute__((packed)) m_eddystoneData;
}; // NIMBLEEddystoneURL
#endif /* _NIMBLEEddystoneURL_H_ */

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/*
* NimBLEExtAdvertising.cpp
*
* Created: on February 6, 2022
* Author H2zero
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && \
defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && \
CONFIG_BT_NIMBLE_EXT_ADV
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "services/gap/ble_svc_gap.h"
#else
#include "nimble/nimble/host/services/gap/include/services/gap/ble_svc_gap.h"
#endif
#include "NimBLEExtAdvertising.h"
#include "NimBLEDevice.h"
#include "NimBLEServer.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
static NimBLEExtAdvertisingCallbacks defaultCallbacks;
static const char* LOG_TAG = "NimBLEExtAdvertising";
/**
* @brief Destructor: deletes callback instances if requested.
*/
NimBLEExtAdvertising::~NimBLEExtAdvertising() {
if(m_deleteCallbacks && m_pCallbacks != &defaultCallbacks) {
delete m_pCallbacks;
}
}
/**
* @brief Register the extended advertisement data.
* @param [in] inst_id The extended advertisement instance ID to assign to this data.
* @param [in] adv The extended advertisement instance with the data to set.
* @return True if advertising started successfully.
*/
bool NimBLEExtAdvertising::setInstanceData(uint8_t inst_id, NimBLEExtAdvertisement& adv) {
adv.m_params.sid = inst_id;
// Legacy advertising as connectable requires the scannable flag also.
if (adv.m_params.legacy_pdu && adv.m_params.connectable) {
adv.m_params.scannable = true;
}
// If connectable or not scannable disable the callback for scan response requests
if (adv.m_params.connectable || !adv.m_params.scannable) {
adv.m_params.scan_req_notif = false;
}
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
NimBLEServer* pServer = NimBLEDevice::getServer();
if (pServer != nullptr) {
if (!pServer->m_gattsStarted) {
pServer->start();
}
}
int rc = ble_gap_ext_adv_configure(inst_id,
&adv.m_params,
NULL,
(pServer != nullptr) ? NimBLEServer::handleGapEvent :
NimBLEExtAdvertising::handleGapEvent,
NULL);
#else
int rc = ble_gap_ext_adv_configure(inst_id,
&data.m_params,
NULL,
NimBLEExtAdvertising::handleGapEvent,
NULL);
#endif
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Advertising config error: rc = %d", rc);
} else {
os_mbuf *buf;
buf = os_msys_get_pkthdr(adv.m_payload.size(), 0);
if (!buf) {
NIMBLE_LOGE(LOG_TAG, "Data buffer allocation failed");
return false;
}
rc = os_mbuf_append(buf, &adv.m_payload[0], adv.m_payload.size());
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Unable to copy data: rc = %d", rc);
return false;
} else {
if (adv.m_params.scannable && !adv.m_params.legacy_pdu) {
rc = ble_gap_ext_adv_rsp_set_data(inst_id, buf);
} else {
rc = ble_gap_ext_adv_set_data(inst_id, buf);
}
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Invalid advertisement data: rc = %d", rc);
} else {
if (adv.m_advAddress != NimBLEAddress("")) {
ble_addr_t addr;
memcpy(&addr.val, adv.m_advAddress.getNative(), 6);
// Custom advertising address must be random.
addr.type = BLE_OWN_ADDR_RANDOM;
rc = ble_gap_ext_adv_set_addr(inst_id, &addr);
}
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error setting advertisement address: rc = %d", rc);
return false;
}
}
}
}
return (rc == 0);
}
/**
* @brief Set the scan response data for a legacy advertisement.
* @param [in] inst_id The extended advertisement instance ID to assign to this data.
* @param [in] lsr A reference to a NimBLEExtAdvertisement that contains the data.
*/
bool NimBLEExtAdvertising::setScanResponseData(uint8_t inst_id, NimBLEExtAdvertisement & lsr) {
os_mbuf *buf = os_msys_get_pkthdr(lsr.m_payload.size(), 0);
if (!buf) {
NIMBLE_LOGE(LOG_TAG, "Data buffer allocation failed");
return false;
}
int rc = os_mbuf_append(buf, &lsr.m_payload[0], lsr.m_payload.size());
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Unable to copy scan data: rc = %d", rc);
return false;
} else {
rc = ble_gap_ext_adv_rsp_set_data(inst_id, buf);
}
return (rc == 0);
}
/**
* @brief Start extended advertising.
* @param [in] inst_id The extended advertisement instance ID to start.
* @param [in] duration How long to advertise for in milliseconds, 0 = forever (default).
* @param [in] max_events Maximum number of advertisement events to send, 0 = no limit (default).
* @return True if advertising started successfully.
*/
bool NimBLEExtAdvertising::start(uint8_t inst_id, int duration, int max_events) {
NIMBLE_LOGD(LOG_TAG, ">> Extended Advertising start");
// If Host is not synced we cannot start advertising.
if(!NimBLEDevice::m_synced) {
NIMBLE_LOGE(LOG_TAG, "Host reset, wait for sync.");
return false;
}
int rc = ble_gap_ext_adv_start(inst_id, duration / 10, max_events);
switch (rc) {
case 0:
m_advStatus[inst_id] = true;
break;
case BLE_HS_EINVAL:
NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Value Error");
break;
case BLE_HS_EALREADY:
NIMBLE_LOGI(LOG_TAG, "Advertisement Already active");
break;
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Host Reset");
break;
default:
NIMBLE_LOGE(LOG_TAG, "Error enabling advertising; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
break;
}
NIMBLE_LOGD(LOG_TAG, "<< Extended Advertising start");
return (rc == 0 || rc == BLE_HS_EALREADY);
} // start
/**
* @brief Stop and remove this instance data from the advertisement set.
* @param [in] inst_id The extended advertisement instance to stop advertising.
* @return True if successful.
*/
bool NimBLEExtAdvertising::removeInstance(uint8_t inst_id) {
if (stop(inst_id)) {
int rc = ble_gap_ext_adv_remove(inst_id);
if (rc != 0 && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_remove rc = %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
return true;
}
return false;
} // removeInstance
/**
* @brief Stop and remove all advertising instance data.
* @return True if successful.
*/
bool NimBLEExtAdvertising::removeAll() {
if (stop()) {
int rc = ble_gap_ext_adv_clear();
if (rc == 0 || rc == BLE_HS_EALREADY) {
return true;
} else {
NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_clear rc = %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
}
}
return false;
} // removeAll
/**
* @brief Stop advertising this instance data.
* @param [in] inst_id The extended advertisement instance to stop advertising.
* @return True if successful.
*/
bool NimBLEExtAdvertising::stop(uint8_t inst_id) {
int rc = ble_gap_ext_adv_stop(inst_id);
if (rc != 0 && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_stop rc = %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
m_advStatus[inst_id] = false;
return true;
} // stop
/**
* @brief Stop all advertisements.
* @return True if successful.
*/
bool NimBLEExtAdvertising::stop() {
int rc = ble_gap_ext_adv_clear();
if (rc != 0 && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_ext_adv_stop rc = %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
for(auto it : m_advStatus) {
it = false;
}
return true;
} // stop
/**
* @brief Set a callback to call when the advertisement stops.
* @param [in] pCallbacks A pointer to a callback to be invoked when an advertisement stops.
* @param [in] deleteCallbacks if true callback class will be deleted when advertising is destructed.
*/
void NimBLEExtAdvertising::setCallbacks(NimBLEExtAdvertisingCallbacks* pCallbacks,
bool deleteCallbacks) {
if (pCallbacks != nullptr){
m_pCallbacks = pCallbacks;
m_deleteCallbacks = deleteCallbacks;
} else {
m_pCallbacks = &defaultCallbacks;
}
} // setCallbacks
/**
* @brief Check if currently advertising.
* @param [in] inst_id The instance ID of the advertised data to get the status of.
* @return True if advertising is active.
*/
bool NimBLEExtAdvertising::isActive(uint8_t inst_id) {
return m_advStatus[inst_id];
} // isAdvertising
/**
* @brief Check if any instances are currently advertising.
* @return True if any instance is active.
*/
bool NimBLEExtAdvertising::isAdvertising() {
for (auto it : m_advStatus) {
if (it) {
return true;
}
}
return false;
} // isAdvertising
/*
* Host reset seems to clear advertising data,
* we need clear the flag so it reloads it.
*/
void NimBLEExtAdvertising::onHostSync() {
NIMBLE_LOGD(LOG_TAG, "Host re-synced");
for(auto it : m_advStatus) {
it = false;
}
} // onHostSync
/**
* @brief Handler for gap events when not using peripheral role.
* @param [in] event the event data.
* @param [in] arg pointer to the advertising instance.
*/
/*STATIC*/
int NimBLEExtAdvertising::handleGapEvent(struct ble_gap_event *event, void *arg) {
(void)arg;
NimBLEExtAdvertising* pAdv = NimBLEDevice::getAdvertising();
switch (event->type) {
case BLE_GAP_EVENT_ADV_COMPLETE: {
switch (event->adv_complete.reason) {
// Don't call the callback if host reset, we want to
// preserve the active flag until re-sync to restart advertising.
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGC(LOG_TAG, "host reset, rc = %d", event->adv_complete.reason);
NimBLEDevice::onReset(event->adv_complete.reason);
return 0;
default:
break;
}
pAdv->m_advStatus[event->adv_complete.instance] = false;
pAdv->m_pCallbacks->onStopped(pAdv, event->adv_complete.reason,
event->adv_complete.instance);
break;
}
case BLE_GAP_EVENT_SCAN_REQ_RCVD: {
pAdv->m_pCallbacks->onScanRequest(pAdv, event->scan_req_rcvd.instance,
NimBLEAddress(event->scan_req_rcvd.scan_addr));
break;
}
}
return 0;
} // handleGapEvent
/** Default callback handlers */
void NimBLEExtAdvertisingCallbacks::onStopped(NimBLEExtAdvertising *pAdv,
int reason, uint8_t inst_id) {
NIMBLE_LOGD("NimBLEExtAdvertisingCallbacks", "onStopped: Default");
} // onStopped
void NimBLEExtAdvertisingCallbacks::onScanRequest(NimBLEExtAdvertising *pAdv,
uint8_t inst_id, NimBLEAddress addr) {
NIMBLE_LOGD("NimBLEExtAdvertisingCallbacks", "onScanRequest: Default");
} // onScanRequest
/**
* @brief Construct a BLE extended advertisement.
* @param [in] priPhy The primary Phy to advertise on, can be one of:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_CODED
* @param [in] secPhy The secondary Phy to advertise on, can be one of:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_2M
* * BLE_HCI_LE_PHY_CODED
*/
NimBLEExtAdvertisement::NimBLEExtAdvertisement(uint8_t priPhy, uint8_t secPhy)
: m_advAddress("")
{
memset (&m_params, 0, sizeof(m_params));
m_params.own_addr_type = NimBLEDevice::m_own_addr_type;
m_params.primary_phy = priPhy;
m_params.secondary_phy = secPhy;
m_params.tx_power = 127;
} // NimBLEExtAdvertisement
/**
* @brief Sets wether the advertisement should use legacy (BLE 4.0, 31 bytes max) advertising.
* @param [in] val true = using legacy advertising.
*/
void NimBLEExtAdvertisement::setLegacyAdvertising(bool val) {
m_params.legacy_pdu = val;
} // setLegacyAdvertising
/**
* @brief Sets wether the advertisement has scan response data available.
* @param [in] val true = scan response is available.
*/
void NimBLEExtAdvertisement::setScannable(bool val) {
m_params.scannable = val;
} // setScannable
/**
* @brief Sets the transmission power level for this advertisement.
* @param [in] dbm the transmission power to use in dbm.
* @details The allowable value range depends on device hardware. \n
* The ESP32C3 and ESP32S3 have a range of -27 to +18.
*/
void NimBLEExtAdvertisement::setTxPower(int8_t dbm) {
m_params.tx_power = dbm;
}
/**
* @brief Sets wether this advertisement should advertise as a connectable device.
* @param [in] val True = connectable.
*/
void NimBLEExtAdvertisement::setConnectable(bool val) {
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
m_params.connectable = val;
#endif
} // setConnectable
/**
* @brief Set the address to use for this advertisement.
* @param [in] addr The address to use.
*/
void NimBLEExtAdvertisement::setAddress(const NimBLEAddress & addr) {
m_advAddress = addr;
// Must use random address type.
m_params.own_addr_type = BLE_OWN_ADDR_RANDOM;
}
/**
* @brief Sets The primary channels to advertise on.
* @param [in] ch37 Advertise on channel 37.
* @param [in] ch38 Advertise on channel 38.
* @param [in] ch39 Advertise on channel 39.
* @details This will set a bitmask using the input parameters to allow different \n
* combinations. If all inputs are false then all 3 channels will be used.
*/
void NimBLEExtAdvertisement::setPrimaryChannels(bool ch37, bool ch38, bool ch39) {
m_params.channel_map = (ch37 | (ch38 << 1) | (ch39 << 2));
} // setPrimaryChannels
/**
* @brief Set the filtering for the scan filter.
* @param [in] scanRequestWhitelistOnly If true, only allow scan requests from those on the white list.
* @param [in] connectWhitelistOnly If true, only allow connections from those on the white list.
*/
void NimBLEExtAdvertisement::setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly) {
if (!scanRequestWhitelistOnly && !connectWhitelistOnly) {
m_params.filter_policy = BLE_HCI_ADV_FILT_NONE;
return;
}
if (scanRequestWhitelistOnly && !connectWhitelistOnly) {
m_params.filter_policy = BLE_HCI_ADV_FILT_SCAN;
return;
}
if (!scanRequestWhitelistOnly && connectWhitelistOnly) {
m_params.filter_policy = BLE_HCI_ADV_FILT_CONN;
return;
}
if (scanRequestWhitelistOnly && connectWhitelistOnly) {
m_params.filter_policy = BLE_HCI_ADV_FILT_BOTH;
return;
}
} // setScanFilter
/**
* @brief Sets the peer to directly advertise to.
* @param [in] addr The address of the peer to direct the advertisements.
*/
void NimBLEExtAdvertisement::setDirectedPeer(const NimBLEAddress & addr) {
ble_addr_t peerAddr;
memcpy(&peerAddr.val, addr.getNative(), 6);
peerAddr.type = addr.getType();
m_params.peer = peerAddr;
} // setDirectedPeer
/**
* @brief Enable or disable direct advertisements to the peer set with `NimBLEExtAdvertisement::setDirectedPeer`
* @param [in] val true = send directed advertisements to peer.
* @param [in] high_duty true = use fast advertising rate, default - true.
*/
void NimBLEExtAdvertisement::setDirected(bool val, bool high_duty) {
m_params.directed = val;
m_params.high_duty_directed = high_duty;
} // setDirected
/**
* @brief Set the minimum advertising interval.
* @param [in] mininterval Minimum value for advertising interval in 0.625ms units, 0 = use default.
*/
void NimBLEExtAdvertisement::setMinInterval(uint32_t mininterval) {
m_params.itvl_min = mininterval;
} // setMinInterval
/**
* @brief Set the maximum advertising interval.
* @param [in] maxinterval Maximum value for advertising interval in 0.625ms units, 0 = use default.
*/
void NimBLEExtAdvertisement::setMaxInterval(uint32_t maxinterval) {
m_params.itvl_max = maxinterval;
} // setMaxInterval
/**
* @brief Set the primary advertising PHY to use
* @param [in] phy Can be one of following constants:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_CODED
*/
void NimBLEExtAdvertisement::setPrimaryPhy(uint8_t phy) {
m_params.primary_phy = phy;
} // setPrimaryPhy
/**
* @brief Set the secondary advertising PHY to use
* @param [in] phy Can be one of following constants:
* * BLE_HCI_LE_PHY_1M
* * BLE_HCI_LE_PHY_2M
* * BLE_HCI_LE_PHY_CODED
*/
void NimBLEExtAdvertisement::setSecondaryPhy(uint8_t phy) {
m_params.secondary_phy = phy;
} // setSecondaryPhy
/**
* @brief Sets whether the advertisement should be anonymous.
* @param [in] val Set to true to enable anonymous advertising.
*
* @details Anonymous advertising omits the device's address from the advertisement.
*/
void NimBLEExtAdvertisement::setAnonymous(bool val) {
m_params.anonymous = val;
} // setAnonymous
/**
* @brief Sets whether the scan response request callback should be called.
* @param [in] enable If true the scan response request callback will be called for this advertisement.
*/
void NimBLEExtAdvertisement::enableScanRequestCallback(bool enable) {
m_params.scan_req_notif = enable;
} // enableScanRequestCallback
/**
* @brief Clears the data stored in this instance, does not change settings.
* @details This will clear all data but preserves advertising parameter settings.
*/
void NimBLEExtAdvertisement::clearData() {
std::vector<uint8_t> swap;
std::swap(m_payload, swap);
}
/**
* @brief Get the size of the current data.
*/
size_t NimBLEExtAdvertisement::getDataSize() {
return m_payload.size();
} // getDataSize
/**
* @brief Set the advertisement data.
* @param [in] data The data to be set as the payload.
* @param [in] length The size of data.
* @details This will completely replace any data that was previously set.
*/
void NimBLEExtAdvertisement::setData(const uint8_t * data, size_t length) {
m_payload.assign(data, data + length);
} // setData
/**
* @brief Add data to the payload to be advertised.
* @param [in] data The data to be added to the payload.
*/
void NimBLEExtAdvertisement::addData(const std::string &data) {
addData((uint8_t*)data.data(), data.length());
} // addData
/**
* @brief Add data to the payload to be advertised.
* @param [in] data The data to be added to the payload.
* @param [in] length The size of data to be added to the payload.
*/
void NimBLEExtAdvertisement::addData(const uint8_t * data, size_t length) {
m_payload.insert(m_payload.end(), data, data + length);
} // addData
/**
* @brief Set the appearance.
* @param [in] appearance The appearance code value.
*
* See also:
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml
*/
void NimBLEExtAdvertisement::setAppearance(uint16_t appearance) {
char cdata[2];
cdata[0] = 3;
cdata[1] = BLE_HS_ADV_TYPE_APPEARANCE; // 0x19
addData(std::string(cdata, 2) + std::string((char*) &appearance, 2));
} // setAppearance
/**
* @brief Set the advertisement flags.
* @param [in] flag The flags to be set in the advertisement.
* * BLE_HS_ADV_F_DISC_LTD
* * BLE_HS_ADV_F_DISC_GEN
* * BLE_HS_ADV_F_BREDR_UNSUP - must always use with NimBLE
*/
void NimBLEExtAdvertisement::setFlags(uint8_t flag) {
char cdata[3];
cdata[0] = 2;
cdata[1] = BLE_HS_ADV_TYPE_FLAGS; // 0x01
cdata[2] = flag | BLE_HS_ADV_F_BREDR_UNSUP;
addData(std::string(cdata, 3));
} // setFlags
/**
* @brief Set manufacturer specific data.
* @param [in] data The manufacturer data to advertise.
*/
void NimBLEExtAdvertisement::setManufacturerData(const std::string &data) {
char cdata[2];
cdata[0] = data.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_MFG_DATA ; // 0xff
addData(std::string(cdata, 2) + data);
} // setManufacturerData
/**
* @brief Set the URI to advertise.
* @param [in] uri The uri to advertise.
*/
void NimBLEExtAdvertisement::setURI(const std::string &uri) {
char cdata[2];
cdata[0] = uri.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_URI;
addData(std::string(cdata, 2) + uri);
} // setURI
/**
* @brief Set the complete name of this device.
* @param [in] name The name to advertise.
*/
void NimBLEExtAdvertisement::setName(const std::string &name) {
char cdata[2];
cdata[0] = name.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_COMP_NAME; // 0x09
addData(std::string(cdata, 2) + name);
} // setName
/**
* @brief Set a single service to advertise as a complete list of services.
* @param [in] uuid The service to advertise.
*/
void NimBLEExtAdvertisement::setCompleteServices(const NimBLEUUID &uuid) {
setServices(true, uuid.bitSize(), {uuid});
} // setCompleteServices
/**
* @brief Set the complete list of 16 bit services to advertise.
* @param [in] v_uuid A vector of 16 bit UUID's to advertise.
*/
void NimBLEExtAdvertisement::setCompleteServices16(const std::vector<NimBLEUUID>& v_uuid) {
setServices(true, 16, v_uuid);
} // setCompleteServices16
/**
* @brief Set the complete list of 32 bit services to advertise.
* @param [in] v_uuid A vector of 32 bit UUID's to advertise.
*/
void NimBLEExtAdvertisement::setCompleteServices32(const std::vector<NimBLEUUID>& v_uuid) {
setServices(true, 32, v_uuid);
} // setCompleteServices32
/**
* @brief Set a single service to advertise as a partial list of services.
* @param [in] uuid The service to advertise.
*/
void NimBLEExtAdvertisement::setPartialServices(const NimBLEUUID &uuid) {
setServices(false, uuid.bitSize(), {uuid});
} // setPartialServices
/**
* @brief Set the partial list of services to advertise.
* @param [in] v_uuid A vector of 16 bit UUID's to advertise.
*/
void NimBLEExtAdvertisement::setPartialServices16(const std::vector<NimBLEUUID>& v_uuid) {
setServices(false, 16, v_uuid);
} // setPartialServices16
/**
* @brief Set the partial list of services to advertise.
* @param [in] v_uuid A vector of 32 bit UUID's to advertise.
*/
void NimBLEExtAdvertisement::setPartialServices32(const std::vector<NimBLEUUID>& v_uuid) {
setServices(false, 32, v_uuid);
} // setPartialServices32
/**
* @brief Utility function to create the list of service UUID's from a vector.
* @param [in] complete If true the vector is the complete set of services.
* @param [in] size The bit size of the UUID's in the vector. (16, 32, or 128).
* @param [in] v_uuid The vector of service UUID's to advertise.
*/
void NimBLEExtAdvertisement::setServices(const bool complete, const uint8_t size,
const std::vector<NimBLEUUID> &v_uuid)
{
char cdata[2];
cdata[0] = (size / 8) * v_uuid.size() + 1;
switch(size) {
case 16:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS16 : BLE_HS_ADV_TYPE_INCOMP_UUIDS16;
break;
case 32:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS32 : BLE_HS_ADV_TYPE_INCOMP_UUIDS32;
break;
case 128:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS128 : BLE_HS_ADV_TYPE_INCOMP_UUIDS128;
break;
default:
return;
}
std::string uuids;
for(auto &it : v_uuid){
if(it.bitSize() != size) {
NIMBLE_LOGE(LOG_TAG, "Service UUID(%d) invalid", size);
return;
} else {
switch(size) {
case 16:
uuids += std::string((char*)&it.getNative()->u16.value, 2);
break;
case 32:
uuids += std::string((char*)&it.getNative()->u32.value, 4);
break;
case 128:
uuids += std::string((char*)&it.getNative()->u128.value, 16);
break;
default:
return;
}
}
}
addData(std::string(cdata, 2) + uuids);
} // setServices
/**
* @brief Set the service data (UUID + data)
* @param [in] uuid The UUID to set with the service data.
* @param [in] data The data to be associated with the service data advertised.
*/
void NimBLEExtAdvertisement::setServiceData(const NimBLEUUID &uuid, const std::string &data) {
char cdata[2];
switch (uuid.bitSize()) {
case 16: {
// [Len] [0x16] [UUID16] data
cdata[0] = data.length() + 3;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID16; // 0x16
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u16.value, 2) + data);
break;
}
case 32: {
// [Len] [0x20] [UUID32] data
cdata[0] = data.length() + 5;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID32; // 0x20
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u32.value, 4) + data);
break;
}
case 128: {
// [Len] [0x21] [UUID128] data
cdata[0] = data.length() + 17;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID128; // 0x21
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u128.value, 16) + data);
break;
}
default:
return;
}
} // setServiceData
/**
* @brief Set the short name.
* @param [in] name The short name of the device.
*/
void NimBLEExtAdvertisement::setShortName(const std::string &name) {
char cdata[2];
cdata[0] = name.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_INCOMP_NAME; // 0x08
addData(std::string(cdata, 2) + name);
} // setShortName
/**
* @brief Adds Tx power level to the advertisement data.
*/
void NimBLEExtAdvertisement::addTxPower() {
m_params.include_tx_power = 1;
} // addTxPower
/**
* @brief Set the preferred connection interval parameters.
* @param [in] min The minimum interval desired.
* @param [in] max The maximum interval desired.
*/
void NimBLEExtAdvertisement::setPreferredParams(uint16_t min, uint16_t max) {
uint8_t data[6];
data[0] = BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN + 1;
data[1] = BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE;
data[2] = min;
data[3] = min >> 8;
data[4] = max;
data[5] = max >> 8;
addData(data, 6);
} // setPreferredParams
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER && CONFIG_BT_NIMBLE_EXT_ADV */

152
lib/libesp32_div/NimBLE-Arduino/src/NimBLEExtAdvertising.h
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@ -1,152 +0,0 @@
/*
* NimBLEExtAdvertising.h
*
* Created: on February 6, 2022
* Author H2zero
*/
#ifndef MAIN_BLEEXTADVERTISING_H_
#define MAIN_BLEEXTADVERTISING_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && \
defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && \
CONFIG_BT_NIMBLE_EXT_ADV
# if defined(CONFIG_NIMBLE_CPP_IDF)
# include "host/ble_gap.h"
# else
# include "nimble/nimble/host/include/host/ble_gap.h"
# endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include "NimBLEAddress.h"
#include "NimBLEUUID.h"
#include <vector>
class NimBLEExtAdvertisingCallbacks;
/**
* @brief Extended advertisement data
*/
class NimBLEExtAdvertisement {
public:
NimBLEExtAdvertisement(uint8_t priPhy = BLE_HCI_LE_PHY_1M,
uint8_t secPhy = BLE_HCI_LE_PHY_1M);
void setAppearance(uint16_t appearance);
void setCompleteServices(const NimBLEUUID &uuid);
void setCompleteServices16(const std::vector<NimBLEUUID> &v_uuid);
void setCompleteServices32(const std::vector<NimBLEUUID> &v_uuid);
void setFlags(uint8_t flag);
void setManufacturerData(const std::string &data);
void setURI(const std::string &uri);
void setName(const std::string &name);
void setPartialServices(const NimBLEUUID &uuid);
void setPartialServices16(const std::vector<NimBLEUUID> &v_uuid);
void setPartialServices32(const std::vector<NimBLEUUID> &v_uuid);
void setServiceData(const NimBLEUUID &uuid, const std::string &data);
void setShortName(const std::string &name);
void setData(const uint8_t * data, size_t length);
void addData(const std::string &data);
void addData(const uint8_t * data, size_t length);
void addTxPower();
void setPreferredParams(uint16_t min, uint16_t max);
void setLegacyAdvertising(bool val);
void setConnectable(bool val);
void setScannable(bool val);
void setMinInterval(uint32_t mininterval);
void setMaxInterval(uint32_t maxinterval);
void setPrimaryPhy(uint8_t phy);
void setSecondaryPhy(uint8_t phy);
void setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly);
void setDirectedPeer(const NimBLEAddress & addr);
void setDirected(bool val, bool high_duty = true);
void setAnonymous(bool val);
void setPrimaryChannels(bool ch37, bool ch38, bool ch39);
void setTxPower(int8_t dbm);
void setAddress(const NimBLEAddress & addr);
void enableScanRequestCallback(bool enable);
void clearData();
size_t getDataSize();
private:
friend class NimBLEExtAdvertising;
void setServices(const bool complete, const uint8_t size,
const std::vector<NimBLEUUID> &v_uuid);
std::vector<uint8_t> m_payload;
ble_gap_ext_adv_params m_params;
NimBLEAddress m_advAddress;
}; // NimBLEExtAdvertisement
/**
* @brief Extended advertising class.
*/
class NimBLEExtAdvertising {
public:
/**
* @brief Construct an extended advertising object.
*/
NimBLEExtAdvertising() :m_advStatus(CONFIG_BT_NIMBLE_MAX_EXT_ADV_INSTANCES + 1, false) {}
~NimBLEExtAdvertising();
bool start(uint8_t inst_id, int duration = 0, int max_events = 0);
bool setInstanceData(uint8_t inst_id, NimBLEExtAdvertisement& adv);
bool setScanResponseData(uint8_t inst_id, NimBLEExtAdvertisement & data);
bool removeInstance(uint8_t inst_id);
bool removeAll();
bool stop(uint8_t inst_id);
bool stop();
bool isActive(uint8_t inst_id);
bool isAdvertising();
void setCallbacks(NimBLEExtAdvertisingCallbacks* callbacks,
bool deleteCallbacks = true);
private:
friend class NimBLEDevice;
friend class NimBLEServer;
void onHostSync();
static int handleGapEvent(struct ble_gap_event *event, void *arg);
bool m_scanResp;
bool m_deleteCallbacks;
NimBLEExtAdvertisingCallbacks* m_pCallbacks;
ble_gap_ext_adv_params m_advParams;
std::vector<bool> m_advStatus;
};
/**
* @brief Callbacks associated with NimBLEExtAdvertising class.
*/
class NimBLEExtAdvertisingCallbacks {
public:
virtual ~NimBLEExtAdvertisingCallbacks() {};
/**
* @brief Handle an advertising stop event.
* @param [in] pAdv A convenience pointer to the extended advertising interface.
* @param [in] reason The reason code for stopping the advertising.
* @param [in] inst_id The instance ID of the advertisement that was stopped.
*/
virtual void onStopped(NimBLEExtAdvertising *pAdv, int reason, uint8_t inst_id);
/**
* @brief Handle a scan response request.
* This is called when a scanning device requests a scan response.
* @param [in] pAdv A convenience pointer to the extended advertising interface.
* @param [in] inst_id The instance ID of the advertisement that the scan response request was made.
* @param [in] addr The address of the device making the request.
*/
virtual void onScanRequest(NimBLEExtAdvertising *pAdv, uint8_t inst_id, NimBLEAddress addr);
}; // NimBLEExtAdvertisingCallbacks
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER && CONFIG_BT_NIMBLE_EXT_ADV */
#endif /* MAIN_BLEADVERTISING_H_ */

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lib/libesp32_div/NimBLE-Arduino/src/NimBLEHIDDevice.cpp
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/*
* NimBLEHIDDevice.cpp
*
* Created: on Oct 06 2020
* Author wakwak-koba
*
* Originally:
*
* BLEHIDDevice.cpp
*
* Created on: Jan 03, 2018
* Author: chegewara
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEHIDDevice.h"
#include "NimBLE2904.h"
/**
* @brief Construct a default NimBLEHIDDevice object.
* @param [in] server A pointer to the server instance this HID Device will use.
*/
NimBLEHIDDevice::NimBLEHIDDevice(NimBLEServer* server) {
/*
* Here we create mandatory services described in bluetooth specification
*/
m_deviceInfoService = server->createService(NimBLEUUID((uint16_t) 0x180a));
m_hidService = server->createService(NimBLEUUID((uint16_t) 0x1812));
m_batteryService = server->createService(NimBLEUUID((uint16_t) 0x180f));
/*
* Mandatory characteristic for device info service
*/
m_pnpCharacteristic = m_deviceInfoService->createCharacteristic((uint16_t) 0x2a50, NIMBLE_PROPERTY::READ);
/*
* Mandatory characteristics for HID service
*/
m_hidInfoCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4a, NIMBLE_PROPERTY::READ);
m_reportMapCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4b, NIMBLE_PROPERTY::READ);
m_hidControlCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4c, NIMBLE_PROPERTY::WRITE_NR);
m_protocolModeCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4e, NIMBLE_PROPERTY::WRITE_NR | NIMBLE_PROPERTY::READ);
/*
* Mandatory battery level characteristic with notification and presence descriptor
*/
m_batteryLevelCharacteristic = m_batteryService->createCharacteristic((uint16_t) 0x2a19, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::NOTIFY);
NimBLE2904* batteryLevelDescriptor = (NimBLE2904*)m_batteryLevelCharacteristic->createDescriptor((uint16_t) 0x2904);
batteryLevelDescriptor->setFormat(NimBLE2904::FORMAT_UINT8);
batteryLevelDescriptor->setNamespace(1);
batteryLevelDescriptor->setUnit(0x27ad);
/*
* This value is setup here because its default value in most usage cases, its very rare to use boot mode
* and we want to simplify library using as much as possible
*/
const uint8_t pMode[] = { 0x01 };
protocolMode()->setValue((uint8_t*) pMode, 1);
}
NimBLEHIDDevice::~NimBLEHIDDevice() {
}
/**
* @brief Set the report map data formatting information.
* @param [in] map A pointer to an array with the values to set.
* @param [in] size The number of values in the array.
*/
void NimBLEHIDDevice::reportMap(uint8_t* map, uint16_t size) {
m_reportMapCharacteristic->setValue(map, size);
}
/**
* @brief Start the HID device services.\n
* This function called when all the services have been created.
*/
void NimBLEHIDDevice::startServices() {
m_deviceInfoService->start();
m_hidService->start();
m_batteryService->start();
}
/**
* @brief Create a manufacturer characteristic (this characteristic is optional).
*/
NimBLECharacteristic* NimBLEHIDDevice::manufacturer() {
m_manufacturerCharacteristic = m_deviceInfoService->createCharacteristic((uint16_t) 0x2a29, NIMBLE_PROPERTY::READ);
return m_manufacturerCharacteristic;
}
/**
* @brief Set manufacturer name
* @param [in] name The manufacturer name of this HID device.
*/
void NimBLEHIDDevice::manufacturer(std::string name) {
m_manufacturerCharacteristic->setValue(name);
}
/**
* @brief Sets the Plug n Play characteristic value.
* @param [in] sig The vendor ID source number.
* @param [in] vid The vendor ID number.
* @param [in] pid The product ID number.
* @param [in] version The produce version number.
*/
void NimBLEHIDDevice::pnp(uint8_t sig, uint16_t vid, uint16_t pid, uint16_t version) {
uint8_t pnp[] = { sig, (uint8_t) (vid >> 8), (uint8_t) vid, (uint8_t) (pid >> 8), (uint8_t) pid, (uint8_t) (version >> 8), (uint8_t) version };
m_pnpCharacteristic->setValue(pnp, sizeof(pnp));
}
/**
* @brief Sets the HID Information characteristic value.
* @param [in] country The country code for the device.
* @param [in] flags The HID Class Specification release number to use.
*/
void NimBLEHIDDevice::hidInfo(uint8_t country, uint8_t flags) {
uint8_t info[] = { 0x11, 0x1, country, flags };
m_hidInfoCharacteristic->setValue(info, sizeof(info));
}
/**
* @brief Create input report characteristic
* @param [in] reportID input report ID, the same as in report map for input object related to the characteristic
* @return pointer to new input report characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::inputReport(uint8_t reportID) {
NimBLECharacteristic* inputReportCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4d, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::NOTIFY | NIMBLE_PROPERTY::READ_ENC);
NimBLEDescriptor* inputReportDescriptor = inputReportCharacteristic->createDescriptor((uint16_t) 0x2908, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::READ_ENC);
uint8_t desc1_val[] = { reportID, 0x01 };
inputReportDescriptor->setValue((uint8_t*) desc1_val, 2);
return inputReportCharacteristic;
}
/**
* @brief Create output report characteristic
* @param [in] reportID Output report ID, the same as in report map for output object related to the characteristic
* @return Pointer to new output report characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::outputReport(uint8_t reportID) {
NimBLECharacteristic* outputReportCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4d, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::WRITE_NR | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::WRITE_ENC);
NimBLEDescriptor* outputReportDescriptor = outputReportCharacteristic->createDescriptor((uint16_t) 0x2908, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::WRITE_ENC);
uint8_t desc1_val[] = { reportID, 0x02 };
outputReportDescriptor->setValue((uint8_t*) desc1_val, 2);
return outputReportCharacteristic;
}
/**
* @brief Create feature report characteristic.
* @param [in] reportID Feature report ID, the same as in report map for feature object related to the characteristic
* @return Pointer to new feature report characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::featureReport(uint8_t reportID) {
NimBLECharacteristic* featureReportCharacteristic = m_hidService->createCharacteristic((uint16_t) 0x2a4d, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::WRITE_ENC);
NimBLEDescriptor* featureReportDescriptor = featureReportCharacteristic->createDescriptor((uint16_t) 0x2908, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::READ_ENC | NIMBLE_PROPERTY::WRITE_ENC);
uint8_t desc1_val[] = { reportID, 0x03 };
featureReportDescriptor->setValue((uint8_t*) desc1_val, 2);
return featureReportCharacteristic;
}
/**
* @brief Creates a keyboard boot input report characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::bootInput() {
return m_hidService->createCharacteristic((uint16_t) 0x2a22, NIMBLE_PROPERTY::NOTIFY);
}
/**
* @brief Create a keyboard boot output report characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::bootOutput() {
return m_hidService->createCharacteristic((uint16_t) 0x2a32, NIMBLE_PROPERTY::READ | NIMBLE_PROPERTY::WRITE | NIMBLE_PROPERTY::WRITE_NR);
}
/**
* @brief Returns a pointer to the HID control point characteristic.
*/
NimBLECharacteristic* NimBLEHIDDevice::hidControl() {
return m_hidControlCharacteristic;
}
/**
* @brief Returns a pointer to the protocol mode characteristic.
*/
NimBLECharacteristic* NimBLEHIDDevice::protocolMode() {
return m_protocolModeCharacteristic;
}
/**
* @brief Set the battery level characteristic value.
* @param [in] level The battery level value.
*/
void NimBLEHIDDevice::setBatteryLevel(uint8_t level) {
m_batteryLevelCharacteristic->setValue(&level, 1);
}
/*
* @brief Returns battery level characteristic
* @ return battery level characteristic
*/
NimBLECharacteristic* NimBLEHIDDevice::batteryLevel() {
return m_batteryLevelCharacteristic;
}
/*
BLECharacteristic* BLEHIDDevice::reportMap() {
return m_reportMapCharacteristic;
}
BLECharacteristic* BLEHIDDevice::pnp() {
return m_pnpCharacteristic;
}
BLECharacteristic* BLEHIDDevice::hidInfo() {
return m_hidInfoCharacteristic;
}
*/
/**
* @brief Returns a pointer to the device information service.
*/
NimBLEService* NimBLEHIDDevice::deviceInfo() {
return m_deviceInfoService;
}
/**
* @brief Returns a pointer to the HID service.
*/
NimBLEService* NimBLEHIDDevice::hidService() {
return m_hidService;
}
/**
* @brief @brief Returns a pointer to the battery service.
*/
NimBLEService* NimBLEHIDDevice::batteryService() {
return m_batteryService;
}
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

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lib/libesp32_div/NimBLE-Arduino/src/NimBLEHIDDevice.h
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/*
* NimBLEHIDDevice.h
*
* Created: on Oct 06 2020
* Author wakwak-koba
*
* Originally:
*
* BLEHIDDevice.h
*
* Created on: Jan 03, 2018
* Author: chegewara
*/
#ifndef _BLEHIDDEVICE_H_
#define _BLEHIDDEVICE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER)
#include "NimBLECharacteristic.h"
#include "NimBLEService.h"
#include "NimBLEDescriptor.h"
#include "HIDTypes.h"
#define GENERIC_HID 0x03C0
#define HID_KEYBOARD 0x03C1
#define HID_MOUSE 0x03C2
#define HID_JOYSTICK 0x03C3
#define HID_GAMEPAD 0x03C4
#define HID_TABLET 0x03C5
#define HID_CARD_READER 0x03C6
#define HID_DIGITAL_PEN 0x03C7
#define HID_BARCODE 0x03C8
/**
* @brief A model of a %BLE Human Interface Device.
*/
class NimBLEHIDDevice {
public:
NimBLEHIDDevice(NimBLEServer*);
virtual ~NimBLEHIDDevice();
void reportMap(uint8_t* map, uint16_t);
void startServices();
NimBLEService* deviceInfo();
NimBLEService* hidService();
NimBLEService* batteryService();
NimBLECharacteristic* manufacturer();
void manufacturer(std::string name);
//NimBLECharacteristic* pnp();
void pnp(uint8_t sig, uint16_t vid, uint16_t pid, uint16_t version);
//NimBLECharacteristic* hidInfo();
void hidInfo(uint8_t country, uint8_t flags);
NimBLECharacteristic* batteryLevel();
void setBatteryLevel(uint8_t level);
//NimBLECharacteristic* reportMap();
NimBLECharacteristic* hidControl();
NimBLECharacteristic* inputReport(uint8_t reportID);
NimBLECharacteristic* outputReport(uint8_t reportID);
NimBLECharacteristic* featureReport(uint8_t reportID);
NimBLECharacteristic* protocolMode();
NimBLECharacteristic* bootInput();
NimBLECharacteristic* bootOutput();
private:
NimBLEService* m_deviceInfoService; //0x180a
NimBLEService* m_hidService; //0x1812
NimBLEService* m_batteryService = 0; //0x180f
NimBLECharacteristic* m_manufacturerCharacteristic; //0x2a29
NimBLECharacteristic* m_pnpCharacteristic; //0x2a50
NimBLECharacteristic* m_hidInfoCharacteristic; //0x2a4a
NimBLECharacteristic* m_reportMapCharacteristic; //0x2a4b
NimBLECharacteristic* m_hidControlCharacteristic; //0x2a4c
NimBLECharacteristic* m_protocolModeCharacteristic; //0x2a4e
NimBLECharacteristic* m_batteryLevelCharacteristic; //0x2a19
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER */
#endif /* _BLEHIDDEVICE_H_ */

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lib/libesp32_div/NimBLE-Arduino/src/NimBLELog.h
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/*
* NimBLELog.h
*
* Created: on Feb 24 2020
* Author H2zero
*
*/
#ifndef MAIN_NIMBLELOG_H_
#define MAIN_NIMBLELOG_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_NIMBLE_CPP_IDF) // using esp-idf
# include "esp_log.h"
# ifndef CONFIG_NIMBLE_CPP_LOG_LEVEL
# define CONFIG_NIMBLE_CPP_LOG_LEVEL 0
# endif
# define NIMBLE_CPP_LOG_PRINT(level, tag, format, ...) do { \
if (CONFIG_NIMBLE_CPP_LOG_LEVEL >= level) \
ESP_LOG_LEVEL_LOCAL(level, tag, format, ##__VA_ARGS__); \
} while(0)
# define NIMBLE_LOGD(tag, format, ...) \
NIMBLE_CPP_LOG_PRINT(ESP_LOG_DEBUG, tag, format, ##__VA_ARGS__)
# define NIMBLE_LOGI(tag, format, ...) \
NIMBLE_CPP_LOG_PRINT(ESP_LOG_INFO, tag, format, ##__VA_ARGS__)
# define NIMBLE_LOGW(tag, format, ...) \
NIMBLE_CPP_LOG_PRINT(ESP_LOG_WARN, tag, format, ##__VA_ARGS__)
# define NIMBLE_LOGE(tag, format, ...) \
NIMBLE_CPP_LOG_PRINT(ESP_LOG_ERROR, tag, format, ##__VA_ARGS__)
# define NIMBLE_LOGC(tag, format, ...) \
NIMBLE_CPP_LOG_PRINT(ESP_LOG_ERROR, tag, format, ##__VA_ARGS__)
#else // using Arduino
# include "nimble/porting/nimble/include/syscfg/syscfg.h"
# include "nimble/console/console.h"
# ifndef CONFIG_NIMBLE_CPP_LOG_LEVEL
# if defined(ARDUINO_ARCH_ESP32) && defined(CORE_DEBUG_LEVEL)
# define CONFIG_NIMBLE_CPP_LOG_LEVEL CORE_DEBUG_LEVEL
# else
# define CONFIG_NIMBLE_CPP_LOG_LEVEL 0
# endif
# endif
# if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 4
# define NIMBLE_LOGD( tag, format, ... ) console_printf("D %s: " format "\n", tag, ##__VA_ARGS__)
# else
# define NIMBLE_LOGD( tag, format, ... ) (void)tag
# endif
# if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 3
# define NIMBLE_LOGI( tag, format, ... ) console_printf("I %s: " format "\n", tag, ##__VA_ARGS__)
# else
# define NIMBLE_LOGI( tag, format, ... ) (void)tag
# endif
# if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 2
# define NIMBLE_LOGW( tag, format, ... ) console_printf("W %s: " format "\n", tag, ##__VA_ARGS__)
# else
# define NIMBLE_LOGW( tag, format, ... ) (void)tag
# endif
# if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 1
# define NIMBLE_LOGE( tag, format, ... ) console_printf("E %s: " format "\n", tag, ##__VA_ARGS__)
# define NIMBLE_LOGC( tag, format, ... ) console_printf("CRIT %s: " format "\n", tag, ##__VA_ARGS__)
# else
# define NIMBLE_LOGE( tag, format, ... ) (void)tag
# define NIMBLE_LOGC( tag, format, ... ) (void)tag
# endif
#endif /* CONFIG_NIMBLE_CPP_IDF */
#endif /* CONFIG_BT_ENABLED */
#endif /* MAIN_NIMBLELOG_H_ */

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lib/libesp32_div/NimBLE-Arduino/src/NimBLERemoteCharacteristic.cpp
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/*
* NimBLERemoteCharacteristic.cpp
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteCharacteristic.cpp
*
* Created on: Mar 16, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLERemoteCharacteristic.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
#include <climits>
static const char* LOG_TAG = "NimBLERemoteCharacteristic";
/**
* @brief Constructor.
* @param [in] reference to the service this characteristic belongs to.
* @param [in] ble_gatt_chr struct defined as:
* struct ble_gatt_chr {
* uint16_t def_handle;
* uint16_t val_handle;
* uint8_t properties;
* ble_uuid_any_t uuid;
* };
*/
NimBLERemoteCharacteristic::NimBLERemoteCharacteristic(NimBLERemoteService *pRemoteService,
const struct ble_gatt_chr *chr)
{
NIMBLE_LOGD(LOG_TAG, ">> NimBLERemoteCharacteristic()");
switch (chr->uuid.u.type) {
case BLE_UUID_TYPE_16:
m_uuid = NimBLEUUID(chr->uuid.u16.value);
break;
case BLE_UUID_TYPE_32:
m_uuid = NimBLEUUID(chr->uuid.u32.value);
break;
case BLE_UUID_TYPE_128:
m_uuid = NimBLEUUID(const_cast<ble_uuid128_t*>(&chr->uuid.u128));
break;
default:
break;
}
m_handle = chr->val_handle;
m_defHandle = chr->def_handle;
m_endHandle = 0;
m_charProp = chr->properties;
m_pRemoteService = pRemoteService;
m_notifyCallback = nullptr;
NIMBLE_LOGD(LOG_TAG, "<< NimBLERemoteCharacteristic(): %s", m_uuid.toString().c_str());
} // NimBLERemoteCharacteristic
/**
*@brief Destructor.
*/
NimBLERemoteCharacteristic::~NimBLERemoteCharacteristic() {
deleteDescriptors();
} // ~NimBLERemoteCharacteristic
/*
#define BLE_GATT_CHR_PROP_BROADCAST 0x01
#define BLE_GATT_CHR_PROP_READ 0x02
#define BLE_GATT_CHR_PROP_WRITE_NO_RSP 0x04
#define BLE_GATT_CHR_PROP_WRITE 0x08
#define BLE_GATT_CHR_PROP_NOTIFY 0x10
#define BLE_GATT_CHR_PROP_INDICATE 0x20
#define BLE_GATT_CHR_PROP_AUTH_SIGN_WRITE 0x40
#define BLE_GATT_CHR_PROP_EXTENDED 0x80
*/
/**
* @brief Does the characteristic support broadcasting?
* @return True if the characteristic supports broadcasting.
*/
bool NimBLERemoteCharacteristic::canBroadcast() {
return (m_charProp & BLE_GATT_CHR_PROP_BROADCAST) != 0;
} // canBroadcast
/**
* @brief Does the characteristic support indications?
* @return True if the characteristic supports indications.
*/
bool NimBLERemoteCharacteristic::canIndicate() {
return (m_charProp & BLE_GATT_CHR_PROP_INDICATE) != 0;
} // canIndicate
/**
* @brief Does the characteristic support notifications?
* @return True if the characteristic supports notifications.
*/
bool NimBLERemoteCharacteristic::canNotify() {
return (m_charProp & BLE_GATT_CHR_PROP_NOTIFY) != 0;
} // canNotify
/**
* @brief Does the characteristic support reading?
* @return True if the characteristic supports reading.
*/
bool NimBLERemoteCharacteristic::canRead() {
return (m_charProp & BLE_GATT_CHR_PROP_READ) != 0;
} // canRead
/**
* @brief Does the characteristic support writing?
* @return True if the characteristic supports writing.
*/
bool NimBLERemoteCharacteristic::canWrite() {
return (m_charProp & BLE_GATT_CHR_PROP_WRITE) != 0;
} // canWrite
/**
* @brief Does the characteristic support writing with no response?
* @return True if the characteristic supports writing with no response.
*/
bool NimBLERemoteCharacteristic::canWriteNoResponse() {
return (m_charProp & BLE_GATT_CHR_PROP_WRITE_NO_RSP) != 0;
} // canWriteNoResponse
/**
* @brief Callback used by the API when a descriptor is discovered or search complete.
*/
int NimBLERemoteCharacteristic::descriptorDiscCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
uint16_t chr_val_handle,
const struct ble_gatt_dsc *dsc,
void *arg)
{
int rc = error->status;
NIMBLE_LOGD(LOG_TAG, "Descriptor Discovered >> status: %d handle: %d",
rc, (rc == 0) ? dsc->handle : -1);
desc_filter_t *filter = (desc_filter_t*)arg;
const NimBLEUUID *uuid_filter = filter->uuid;
ble_task_data_t *pTaskData = (ble_task_data_t*)filter->task_data;
NimBLERemoteCharacteristic *characteristic = (NimBLERemoteCharacteristic*)pTaskData->pATT;
if (characteristic->getRemoteService()->getClient()->getConnId() != conn_handle){
return 0;
}
switch (rc) {
case 0: {
if (uuid_filter != nullptr) {
if (ble_uuid_cmp(&uuid_filter->getNative()->u, &dsc->uuid.u) != 0) {
return 0;
} else {
rc = BLE_HS_EDONE;
}
}
NimBLERemoteDescriptor* pNewRemoteDescriptor = new NimBLERemoteDescriptor(characteristic, dsc);
characteristic->m_descriptorVector.push_back(pNewRemoteDescriptor);
break;
}
default:
break;
}
/* If rc == BLE_HS_EDONE, resume the task with a success error code and stop the discovery process.
* Else if rc == 0, just return 0 to continue the discovery until we get BLE_HS_EDONE.
* If we get any other error code tell the application to abort by returning non-zero in the rc.
*/
if (rc == BLE_HS_EDONE) {
pTaskData->rc = 0;
xTaskNotifyGive(pTaskData->task);
} else if(rc != 0) {
// Error; abort discovery.
pTaskData->rc = rc;
xTaskNotifyGive(pTaskData->task);
}
NIMBLE_LOGD(LOG_TAG,"<< Descriptor Discovered. status: %d", pTaskData->rc);
return rc;
}
/**
* @brief callback from NimBLE when the next characteristic of the service is discovered.
*/
int NimBLERemoteCharacteristic::nextCharCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg)
{
int rc = error->status;
NIMBLE_LOGD(LOG_TAG, "Next Characteristic >> status: %d handle: %d",
rc, (rc == 0) ? chr->val_handle : -1);
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteCharacteristic *pChar = (NimBLERemoteCharacteristic*)pTaskData->pATT;
if (pChar->getRemoteService()->getClient()->getConnId() != conn_handle) {
return 0;
}
if (rc == 0) {
pChar->m_endHandle = chr->def_handle - 1;
rc = BLE_HS_EDONE;
} else if (rc == BLE_HS_EDONE) {
pChar->m_endHandle = pChar->getRemoteService()->getEndHandle();
} else {
pTaskData->rc = rc;
}
xTaskNotifyGive(pTaskData->task);
return rc;
}
/**
* @brief Populate the descriptors (if any) for this characteristic.
* @param [in] the end handle of the characteristic, or the service, whichever comes first.
*/
bool NimBLERemoteCharacteristic::retrieveDescriptors(const NimBLEUUID *uuid_filter) {
NIMBLE_LOGD(LOG_TAG, ">> retrieveDescriptors() for characteristic: %s", getUUID().toString().c_str());
// If this is the last handle then there are no descriptors
if (m_handle == getRemoteService()->getEndHandle()) {
return true;
}
int rc = 0;
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, nullptr};
// If we don't know the end handle of this characteristic retrieve the next one in the service
// The end handle is the next characteristic definition handle -1.
if (m_endHandle == 0) {
rc = ble_gattc_disc_all_chrs(getRemoteService()->getClient()->getConnId(),
m_handle,
getRemoteService()->getEndHandle(),
NimBLERemoteCharacteristic::nextCharCB,
&taskData);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error getting end handle rc=%d", rc);
return false;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
if (taskData.rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Could not retrieve end handle rc=%d", taskData.rc);
return false;
}
}
if (m_handle == m_endHandle) {
return true;
}
desc_filter_t filter = {uuid_filter, &taskData};
rc = ble_gattc_disc_all_dscs(getRemoteService()->getClient()->getConnId(),
m_handle,
m_endHandle,
NimBLERemoteCharacteristic::descriptorDiscCB,
&filter);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gattc_disc_all_dscs: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
if (taskData.rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Failed to retrieve descriptors; startHandle:%d endHandle:%d taskData.rc=%d",
m_handle, m_endHandle, taskData.rc);
}
NIMBLE_LOGD(LOG_TAG, "<< retrieveDescriptors(): Found %d descriptors.", m_descriptorVector.size());
return (taskData.rc == 0);
} // retrieveDescriptors
/**
* @brief Get the descriptor instance with the given UUID that belongs to this characteristic.
* @param [in] uuid The UUID of the descriptor to find.
* @return The Remote descriptor (if present) or null if not present.
*/
NimBLERemoteDescriptor* NimBLERemoteCharacteristic::getDescriptor(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> getDescriptor: uuid: %s", uuid.toString().c_str());
for(auto &it: m_descriptorVector) {
if(it->getUUID() == uuid) {
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: found the descriptor with uuid: %s", uuid.toString().c_str());
return it;
}
}
size_t prev_size = m_descriptorVector.size();
if(retrieveDescriptors(&uuid)) {
if(m_descriptorVector.size() > prev_size) {
return m_descriptorVector.back();
}
// If the request was successful but 16/32 bit uuid not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
if(retrieveDescriptors(&uuid128)) {
if(m_descriptorVector.size() > prev_size) {
return m_descriptorVector.back();
}
}
} else {
// If the request was successful but the 128 bit uuid not found
// try again with the 16 bit uuid.
NimBLEUUID uuid16(uuid);
uuid16.to16();
// if the uuid was 128 bit but not of the BLE base type this check will fail
if (uuid16.bitSize() == BLE_UUID_TYPE_16) {
if(retrieveDescriptors(&uuid16)) {
if(m_descriptorVector.size() > prev_size) {
return m_descriptorVector.back();
}
}
}
}
}
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: Not found");
return nullptr;
} // getDescriptor
/**
* @brief Get a pointer to the vector of found descriptors.
* @param [in] refresh If true the current descriptor vector will be cleared and\n
* all descriptors for this characteristic retrieved from the peripheral.\n
* If false the vector will be returned with the currently stored descriptors
* of this characteristic.
* @return A pointer to the vector of descriptors for this characteristic.
*/
std::vector<NimBLERemoteDescriptor*>* NimBLERemoteCharacteristic::getDescriptors(bool refresh) {
if(refresh) {
deleteDescriptors();
if (!retrieveDescriptors()) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to get descriptors");
}
else{
NIMBLE_LOGI(LOG_TAG, "Found %d descriptor(s)", m_descriptorVector.size());
}
}
return &m_descriptorVector;
} // getDescriptors
/**
* @brief Get iterator to the beginning of the vector of remote descriptor pointers.
* @return An iterator to the beginning of the vector of remote descriptor pointers.
*/
std::vector<NimBLERemoteDescriptor*>::iterator NimBLERemoteCharacteristic::begin() {
return m_descriptorVector.begin();
}
/**
* @brief Get iterator to the end of the vector of remote descriptor pointers.
* @return An iterator to the end of the vector of remote descriptor pointers.
*/
std::vector<NimBLERemoteDescriptor*>::iterator NimBLERemoteCharacteristic::end() {
return m_descriptorVector.end();
}
/**
* @brief Get the handle for this characteristic.
* @return The handle for this characteristic.
*/
uint16_t NimBLERemoteCharacteristic::getHandle() {
return m_handle;
} // getHandle
/**
* @brief Get the handle for this characteristics definition.
* @return The handle for this characteristic definition.
*/
uint16_t NimBLERemoteCharacteristic::getDefHandle() {
return m_defHandle;
} // getDefHandle
/**
* @brief Get the remote service associated with this characteristic.
* @return The remote service associated with this characteristic.
*/
NimBLERemoteService* NimBLERemoteCharacteristic::getRemoteService() {
return m_pRemoteService;
} // getRemoteService
/**
* @brief Get the UUID for this characteristic.
* @return The UUID for this characteristic.
*/
NimBLEUUID NimBLERemoteCharacteristic::getUUID() {
return m_uuid;
} // getUUID
/**
* @brief Get the value of the remote characteristic.
* @param [in] timestamp A pointer to a time_t struct to store the time the value was read.
* @return The value of the remote characteristic.
*/
NimBLEAttValue NimBLERemoteCharacteristic::getValue(time_t *timestamp) {
if(timestamp != nullptr) {
*timestamp = m_value.getTimeStamp();
}
return m_value;
}
/**
* @brief Read an unsigned 16 bit value
* @return The unsigned 16 bit value.
* @deprecated Use readValue<uint16_t>().
*/
uint16_t NimBLERemoteCharacteristic::readUInt16() {
return readValue<uint16_t>();
} // readUInt16
/**
* @brief Read an unsigned 32 bit value.
* @return the unsigned 32 bit value.
* @deprecated Use readValue<uint32_t>().
*/
uint32_t NimBLERemoteCharacteristic::readUInt32() {
return readValue<uint32_t>();
} // readUInt32
/**
* @brief Read a byte value
* @return The value as a byte
* @deprecated Use readValue<uint8_t>().
*/
uint8_t NimBLERemoteCharacteristic::readUInt8() {
return readValue<uint8_t>();
} // readUInt8
/**
* @brief Read a float value.
* @return the float value.
*/
float NimBLERemoteCharacteristic::readFloat() {
return readValue<float>();
} // readFloat
/**
* @brief Read the value of the remote characteristic.
* @param [in] timestamp A pointer to a time_t struct to store the time the value was read.
* @return The value of the remote characteristic.
*/
NimBLEAttValue NimBLERemoteCharacteristic::readValue(time_t *timestamp) {
NIMBLE_LOGD(LOG_TAG, ">> readValue(): uuid: %s, handle: %d 0x%.2x",
getUUID().toString().c_str(), getHandle(), getHandle());
NimBLEClient* pClient = getRemoteService()->getClient();
NimBLEAttValue value;
if (!pClient->isConnected()) {
NIMBLE_LOGE(LOG_TAG, "Disconnected");
return value;
}
int rc = 0;
int retryCount = 1;
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, &value};
do {
rc = ble_gattc_read_long(pClient->getConnId(), m_handle, 0,
NimBLERemoteCharacteristic::onReadCB,
&taskData);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to read characteristic; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
return value;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
rc = taskData.rc;
switch(rc){
case 0:
case BLE_HS_EDONE:
rc = 0;
break;
// Characteristic is not long-readable, return with what we have.
case BLE_HS_ATT_ERR(BLE_ATT_ERR_ATTR_NOT_LONG):
NIMBLE_LOGI(LOG_TAG, "Attribute not long");
rc = 0;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHEN):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHOR):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_ENC):
if (retryCount && pClient->secureConnection())
break;
/* Else falls through. */
default:
NIMBLE_LOGE(LOG_TAG, "<< readValue rc=%d", rc);
return value;
}
} while(rc != 0 && retryCount--);
value.setTimeStamp();
m_value = value;
if(timestamp != nullptr) {
*timestamp = value.getTimeStamp();
}
NIMBLE_LOGD(LOG_TAG, "<< readValue length: %d rc=%d", value.length(), rc);
return value;
} // readValue
/**
* @brief Callback for characteristic read operation.
* @return success == 0 or error code.
*/
int NimBLERemoteCharacteristic::onReadCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg)
{
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteCharacteristic *characteristic = (NimBLERemoteCharacteristic*)pTaskData->pATT;
uint16_t conn_id = characteristic->getRemoteService()->getClient()->getConnId();
if(conn_id != conn_handle) {
return 0;
}
NIMBLE_LOGI(LOG_TAG, "Read complete; status=%d conn_handle=%d", error->status, conn_handle);
NimBLEAttValue *valBuf = (NimBLEAttValue*)pTaskData->buf;
int rc = error->status;
if(rc == 0) {
if(attr) {
uint16_t data_len = OS_MBUF_PKTLEN(attr->om);
if((valBuf->size() + data_len) > BLE_ATT_ATTR_MAX_LEN) {
rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
} else {
NIMBLE_LOGD(LOG_TAG, "Got %u bytes", data_len);
valBuf->append(attr->om->om_data, data_len);
return 0;
}
}
}
pTaskData->rc = rc;
xTaskNotifyGive(pTaskData->task);
return rc;
}
/**
* @brief Subscribe or unsubscribe for notifications or indications.
* @param [in] val 0x00 to unsubscribe, 0x01 for notifications, 0x02 for indications.
* @param [in] notifyCallback A callback to be invoked for a notification.
* @param [in] response If write response required set this to true.
* If NULL is provided then no callback is performed.
* @return false if writing to the descriptor failed.
*/
bool NimBLERemoteCharacteristic::setNotify(uint16_t val, notify_callback notifyCallback, bool response) {
NIMBLE_LOGD(LOG_TAG, ">> setNotify(): %s, %02x", toString().c_str(), val);
m_notifyCallback = notifyCallback;
NimBLERemoteDescriptor* desc = getDescriptor(NimBLEUUID((uint16_t)0x2902));
if(desc == nullptr) {
NIMBLE_LOGW(LOG_TAG, "<< setNotify(): Callback set, CCCD not found");
return true;
}
NIMBLE_LOGD(LOG_TAG, "<< setNotify()");
return desc->writeValue((uint8_t *)&val, 2, response);
} // setNotify
/**
* @brief Subscribe for notifications or indications.
* @param [in] notifications If true, subscribe for notifications, false subscribe for indications.
* @param [in] notifyCallback A callback to be invoked for a notification.
* @param [in] response If true, require a write response from the descriptor write operation.
* If NULL is provided then no callback is performed.
* @return false if writing to the descriptor failed.
*/
bool NimBLERemoteCharacteristic::subscribe(bool notifications, notify_callback notifyCallback, bool response) {
if(notifications) {
return setNotify(0x01, notifyCallback, response);
} else {
return setNotify(0x02, notifyCallback, response);
}
} // subscribe
/**
* @brief Unsubscribe for notifications or indications.
* @param [in] response bool if true, require a write response from the descriptor write operation.
* @return false if writing to the descriptor failed.
*/
bool NimBLERemoteCharacteristic::unsubscribe(bool response) {
return setNotify(0x00, nullptr, response);
} // unsubscribe
/**
* @brief backward-compatibility method for subscribe/unsubscribe notifications/indications
* @param [in] notifyCallback A callback to be invoked for a notification. If NULL is provided then we
* will unregister for notifications.
* @param [in] notifications If true, register for notifications, false register for indications.
* @param [in] response If true, require a write response from the descriptor write operation.
* @return true if successful.
* @deprecated Use subscribe() / unsubscribe() instead.
*/
bool NimBLERemoteCharacteristic::registerForNotify(notify_callback notifyCallback, bool notifications, bool response) {
bool success;
if(notifyCallback != nullptr) {
success = subscribe(notifications, notifyCallback, response);
} else {
success = unsubscribe(response);
}
return success;
} // registerForNotify
/**
* @brief Delete the descriptors in the descriptor vector.
* @details We maintain a vector called m_descriptorVector that contains pointers to NimBLERemoteDescriptors
* object references. Since we allocated these in this class, we are also responsible for deleting
* them. This method does just that.
*/
void NimBLERemoteCharacteristic::deleteDescriptors() {
NIMBLE_LOGD(LOG_TAG, ">> deleteDescriptors");
for(auto &it: m_descriptorVector) {
delete it;
}
m_descriptorVector.clear();
NIMBLE_LOGD(LOG_TAG, "<< deleteDescriptors");
} // deleteDescriptors
/**
* @brief Delete descriptor by UUID
* @param [in] uuid The UUID of the descriptor to be deleted.
* @return Number of descriptors left in the vector.
*/
size_t NimBLERemoteCharacteristic::deleteDescriptor(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> deleteDescriptor");
for(auto it = m_descriptorVector.begin(); it != m_descriptorVector.end(); ++it) {
if((*it)->getUUID() == uuid) {
delete *it;
m_descriptorVector.erase(it);
break;
}
}
NIMBLE_LOGD(LOG_TAG, "<< deleteDescriptor");
return m_descriptorVector.size();
} // deleteDescriptor
/**
* @brief Convert a NimBLERemoteCharacteristic to a string representation;
* @return a String representation.
*/
std::string NimBLERemoteCharacteristic::toString() {
std::string res = "Characteristic: uuid: " + m_uuid.toString();
char val[6];
res += ", handle: ";
snprintf(val, sizeof(val), "%d", getHandle());
res += val;
res += " 0x";
snprintf(val, sizeof(val), "%04x", getHandle());
res += val;
res += ", props: ";
res += " 0x";
snprintf(val, sizeof(val), "%02x", m_charProp);
res += val;
for(auto &it: m_descriptorVector) {
res += "\n" + it->toString();
}
return res;
} // toString
/**
* @brief Write a new value to the remote characteristic from a std::vector<uint8_t>.
* @param [in] vec A std::vector<uint8_t> value to write to the remote characteristic.
* @param [in] response Whether we require a response from the write.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteCharacteristic::writeValue(const std::vector<uint8_t>& vec, bool response) {
return writeValue((uint8_t*)&vec[0], vec.size(), response);
} // writeValue
/**
* @brief Write a new value to the remote characteristic from a const char*.
* @param [in] char_s A character string to write to the remote characteristic.
* @param [in] response Whether we require a response from the write.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteCharacteristic::writeValue(const char* char_s, bool response) {
return writeValue((uint8_t*)char_s, strlen(char_s), response);
} // writeValue
/**
* @brief Write a new value to the remote characteristic from a data buffer.
* @param [in] data A pointer to a data buffer.
* @param [in] length The length of the data in the data buffer.
* @param [in] response Whether we require a response from the write.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteCharacteristic::writeValue(const uint8_t* data, size_t length, bool response) {
NIMBLE_LOGD(LOG_TAG, ">> writeValue(), length: %d", length);
NimBLEClient* pClient = getRemoteService()->getClient();
if (!pClient->isConnected()) {
NIMBLE_LOGE(LOG_TAG, "Disconnected");
return false;
}
int rc = 0;
int retryCount = 1;
uint16_t mtu = ble_att_mtu(pClient->getConnId()) - 3;
// Check if the data length is longer than we can write in one connection event.
// If so we must do a long write which requires a response.
if(length <= mtu && !response) {
rc = ble_gattc_write_no_rsp_flat(pClient->getConnId(), m_handle, data, length);
return (rc==0);
}
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, nullptr};
do {
if(length > mtu) {
NIMBLE_LOGI(LOG_TAG,"long write %d bytes", length);
os_mbuf *om = ble_hs_mbuf_from_flat(data, length);
rc = ble_gattc_write_long(pClient->getConnId(), m_handle, 0, om,
NimBLERemoteCharacteristic::onWriteCB,
&taskData);
} else {
rc = ble_gattc_write_flat(pClient->getConnId(), m_handle,
data, length,
NimBLERemoteCharacteristic::onWriteCB,
&taskData);
}
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to write characteristic; rc=%d", rc);
return false;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
rc = taskData.rc;
switch(rc){
case 0:
case BLE_HS_EDONE:
rc = 0;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_ATTR_NOT_LONG):
NIMBLE_LOGE(LOG_TAG, "Long write not supported by peer; Truncating length to %d", mtu);
retryCount++;
length = mtu;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHEN):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHOR):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_ENC):
if (retryCount && pClient->secureConnection())
break;
/* Else falls through. */
default:
NIMBLE_LOGE(LOG_TAG, "<< writeValue, rc: %d", rc);
return false;
}
} while(rc != 0 && retryCount--);
NIMBLE_LOGD(LOG_TAG, "<< writeValue, rc: %d", rc);
return (rc == 0);
} // writeValue
/**
* @brief Callback for characteristic write operation.
* @return success == 0 or error code.
*/
int NimBLERemoteCharacteristic::onWriteCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg)
{
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteCharacteristic *characteristic = (NimBLERemoteCharacteristic*)pTaskData->pATT;
if(characteristic->getRemoteService()->getClient()->getConnId() != conn_handle){
return 0;
}
NIMBLE_LOGI(LOG_TAG, "Write complete; status=%d conn_handle=%d", error->status, conn_handle);
pTaskData->rc = error->status;
xTaskNotifyGive(pTaskData->task);
return 0;
}
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */

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@ -1,190 +0,0 @@
/*
* NimBLERemoteCharacteristic.h
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteCharacteristic.h
*
* Created on: Jul 8, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEREMOTECHARACTERISTIC_H_
#define COMPONENTS_NIMBLEREMOTECHARACTERISTIC_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLERemoteService.h"
#include "NimBLERemoteDescriptor.h"
#include <vector>
#include <functional>
#include "NimBLELog.h"
class NimBLERemoteService;
class NimBLERemoteDescriptor;
typedef std::function<void (NimBLERemoteCharacteristic* pBLERemoteCharacteristic,
uint8_t* pData, size_t length, bool isNotify)> notify_callback;
typedef struct {
const NimBLEUUID *uuid;
void *task_data;
} desc_filter_t;
/**
* @brief A model of a remote %BLE characteristic.
*/
class NimBLERemoteCharacteristic {
public:
~NimBLERemoteCharacteristic();
// Public member functions
bool canBroadcast();
bool canIndicate();
bool canNotify();
bool canRead();
bool canWrite();
bool canWriteNoResponse();
std::vector<NimBLERemoteDescriptor*>::iterator begin();
std::vector<NimBLERemoteDescriptor*>::iterator end();
NimBLERemoteDescriptor* getDescriptor(const NimBLEUUID &uuid);
std::vector<NimBLERemoteDescriptor*>* getDescriptors(bool refresh = false);
void deleteDescriptors();
size_t deleteDescriptor(const NimBLEUUID &uuid);
uint16_t getHandle();
uint16_t getDefHandle();
NimBLEUUID getUUID();
NimBLEAttValue readValue(time_t *timestamp = nullptr);
std::string toString();
NimBLERemoteService* getRemoteService();
uint8_t readUInt8() __attribute__ ((deprecated("Use template readValue<uint8_t>()")));
uint16_t readUInt16() __attribute__ ((deprecated("Use template readValue<uint16_t>()")));
uint32_t readUInt32() __attribute__ ((deprecated("Use template readValue<uint32_t>()")));
float readFloat() __attribute__ ((deprecated("Use template readValue<float>()")));
NimBLEAttValue getValue(time_t *timestamp = nullptr);
bool subscribe(bool notifications = true,
notify_callback notifyCallback = nullptr,
bool response = false);
bool unsubscribe(bool response = false);
bool registerForNotify(notify_callback notifyCallback,
bool notifications = true,
bool response = true)
__attribute__ ((deprecated("Use subscribe()/unsubscribe()")));
bool writeValue(const uint8_t* data,
size_t length,
bool response = false);
bool writeValue(const std::vector<uint8_t>& v, bool response = false);
bool writeValue(const char* s, bool response = false);
/*********************** Template Functions ************************/
/**
* @brief Template to set the remote characteristic value to <type\>val.
* @param [in] s The value to write.
* @param [in] response True == request write response.
* @details Only used for non-arrays and types without a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<!std::is_array<T>::value && !Has_c_str_len<T>::value, bool>::type
#endif
writeValue(const T& s, bool response = false) {
return writeValue((uint8_t*)&s, sizeof(T), response);
}
/**
* @brief Template to set the remote characteristic value to <type\>val.
* @param [in] s The value to write.
* @param [in] response True == request write response.
* @details Only used if the <type\> has a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<Has_c_str_len<T>::value, bool>::type
#endif
writeValue(const T& s, bool response = false) {
return writeValue((uint8_t*)s.c_str(), s.length(), response);
}
/**
* @brief Template to convert the remote characteristic data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] timestamp A pointer to a time_t struct to store the time the value was read.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>getValue<type>(&timestamp, skipSizeCheck);</tt>
*/
template<typename T>
T getValue(time_t *timestamp = nullptr, bool skipSizeCheck = false) {
if(!skipSizeCheck && m_value.size() < sizeof(T)) return T();
return *((T *)m_value.getValue(timestamp));
}
/**
* @brief Template to convert the remote characteristic data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] timestamp A pointer to a time_t struct to store the time the value was read.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>readValue<type>(&timestamp, skipSizeCheck);</tt>
*/
template<typename T>
T readValue(time_t *timestamp = nullptr, bool skipSizeCheck = false) {
NimBLEAttValue value = readValue();
if(!skipSizeCheck && value.size() < sizeof(T)) return T();
return *((T *)value.getValue(timestamp));
}
private:
NimBLERemoteCharacteristic(NimBLERemoteService *pRemoteservice, const struct ble_gatt_chr *chr);
friend class NimBLEClient;
friend class NimBLERemoteService;
friend class NimBLERemoteDescriptor;
// Private member functions
bool setNotify(uint16_t val, notify_callback notifyCallback = nullptr, bool response = true);
bool retrieveDescriptors(const NimBLEUUID *uuid_filter = nullptr);
static int onReadCB(uint16_t conn_handle, const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg);
static int onWriteCB(uint16_t conn_handle, const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg);
static int descriptorDiscCB(uint16_t conn_handle, const struct ble_gatt_error *error,
uint16_t chr_val_handle, const struct ble_gatt_dsc *dsc,
void *arg);
static int nextCharCB(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg);
// Private properties
NimBLEUUID m_uuid;
uint8_t m_charProp;
uint16_t m_handle;
uint16_t m_defHandle;
uint16_t m_endHandle;
NimBLERemoteService* m_pRemoteService;
NimBLEAttValue m_value;
notify_callback m_notifyCallback;
// We maintain a vector of descriptors owned by this characteristic.
std::vector<NimBLERemoteDescriptor*> m_descriptorVector;
}; // NimBLERemoteCharacteristic
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */
#endif /* COMPONENTS_NIMBLEREMOTECHARACTERISTIC_H_ */

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@ -1,365 +0,0 @@
/*
* NimBLERemoteDescriptor.cpp
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteDescriptor.cpp
*
* Created on: Jul 8, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLERemoteDescriptor.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
#include <climits>
static const char* LOG_TAG = "NimBLERemoteDescriptor";
/**
* @brief Remote descriptor constructor.
* @param [in] pRemoteCharacteristic A pointer to the Characteristic that this belongs to.
* @param [in] dsc A pointer to the struct that contains the descriptor information.
*/
NimBLERemoteDescriptor::NimBLERemoteDescriptor(NimBLERemoteCharacteristic* pRemoteCharacteristic,
const struct ble_gatt_dsc *dsc)
{
NIMBLE_LOGD(LOG_TAG, ">> NimBLERemoteDescriptor()");
switch (dsc->uuid.u.type) {
case BLE_UUID_TYPE_16:
m_uuid = NimBLEUUID(dsc->uuid.u16.value);
break;
case BLE_UUID_TYPE_32:
m_uuid = NimBLEUUID(dsc->uuid.u32.value);
break;
case BLE_UUID_TYPE_128:
m_uuid = NimBLEUUID(const_cast<ble_uuid128_t*>(&dsc->uuid.u128));
break;
default:
break;
}
m_handle = dsc->handle;
m_pRemoteCharacteristic = pRemoteCharacteristic;
NIMBLE_LOGD(LOG_TAG, "<< NimBLERemoteDescriptor(): %s", m_uuid.toString().c_str());
}
/**
* @brief Retrieve the handle associated with this remote descriptor.
* @return The handle associated with this remote descriptor.
*/
uint16_t NimBLERemoteDescriptor::getHandle() {
return m_handle;
} // getHandle
/**
* @brief Get the characteristic that owns this descriptor.
* @return The characteristic that owns this descriptor.
*/
NimBLERemoteCharacteristic* NimBLERemoteDescriptor::getRemoteCharacteristic() {
return m_pRemoteCharacteristic;
} // getRemoteCharacteristic
/**
* @brief Retrieve the UUID associated this remote descriptor.
* @return The UUID associated this remote descriptor.
*/
NimBLEUUID NimBLERemoteDescriptor::getUUID() {
return m_uuid;
} // getUUID
/**
* @brief Read a byte value
* @return The value as a byte
* @deprecated Use readValue<uint8_t>().
*/
uint8_t NimBLERemoteDescriptor::readUInt8() {
return readValue<uint8_t>();
} // readUInt8
/**
* @brief Read an unsigned 16 bit value
* @return The unsigned 16 bit value.
* @deprecated Use readValue<uint16_t>().
*/
uint16_t NimBLERemoteDescriptor::readUInt16() {
return readValue<uint16_t>();
} // readUInt16
/**
* @brief Read an unsigned 32 bit value.
* @return the unsigned 32 bit value.
* @deprecated Use readValue<uint32_t>().
*/
uint32_t NimBLERemoteDescriptor::readUInt32() {
return readValue<uint32_t>();
} // readUInt32
/**
* @brief Read the value of the remote descriptor.
* @return The value of the remote descriptor.
*/
NimBLEAttValue NimBLERemoteDescriptor::readValue() {
NIMBLE_LOGD(LOG_TAG, ">> Descriptor readValue: %s", toString().c_str());
NimBLEClient* pClient = getRemoteCharacteristic()->getRemoteService()->getClient();
NimBLEAttValue value;
if (!pClient->isConnected()) {
NIMBLE_LOGE(LOG_TAG, "Disconnected");
return value;
}
int rc = 0;
int retryCount = 1;
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, &value};
do {
rc = ble_gattc_read_long(pClient->getConnId(), m_handle, 0,
NimBLERemoteDescriptor::onReadCB,
&taskData);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to read descriptor; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
return value;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
rc = taskData.rc;
switch(rc){
case 0:
case BLE_HS_EDONE:
rc = 0;
break;
// Descriptor is not long-readable, return with what we have.
case BLE_HS_ATT_ERR(BLE_ATT_ERR_ATTR_NOT_LONG):
NIMBLE_LOGI(LOG_TAG, "Attribute not long");
rc = 0;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHEN):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHOR):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_ENC):
if (retryCount && pClient->secureConnection())
break;
/* Else falls through. */
default:
return value;
}
} while(rc != 0 && retryCount--);
NIMBLE_LOGD(LOG_TAG, "<< Descriptor readValue(): length: %u rc=%d", value.length(), rc);
return value;
} // readValue
/**
* @brief Callback for Descriptor read operation.
* @return success == 0 or error code.
*/
int NimBLERemoteDescriptor::onReadCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg)
{
(void)attr;
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteDescriptor* desc = (NimBLERemoteDescriptor*)pTaskData->pATT;
uint16_t conn_id = desc->getRemoteCharacteristic()->getRemoteService()->getClient()->getConnId();
if(conn_id != conn_handle){
return 0;
}
NIMBLE_LOGD(LOG_TAG, "Read complete; status=%d conn_handle=%d", error->status, conn_handle);
NimBLEAttValue *valBuf = (NimBLEAttValue*)pTaskData->buf;
int rc = error->status;
if(rc == 0) {
if(attr) {
uint16_t data_len = OS_MBUF_PKTLEN(attr->om);
if((valBuf->size() + data_len) > BLE_ATT_ATTR_MAX_LEN) {
rc = BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
} else {
NIMBLE_LOGD(LOG_TAG, "Got %u bytes", data_len);
valBuf->append(attr->om->om_data, data_len);
return 0;
}
}
}
pTaskData->rc = rc;
xTaskNotifyGive(pTaskData->task);
return rc;
}
/**
* @brief Return a string representation of this Remote Descriptor.
* @return A string representation of this Remote Descriptor.
*/
std::string NimBLERemoteDescriptor::toString() {
std::string res = "Descriptor: uuid: " + getUUID().toString();
char val[6];
res += ", handle: ";
snprintf(val, sizeof(val), "%d", getHandle());
res += val;
return res;
} // toString
/**
* @brief Callback for descriptor write operation.
* @return success == 0 or error code.
*/
int NimBLERemoteDescriptor::onWriteCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg)
{
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteDescriptor* descriptor = (NimBLERemoteDescriptor*)pTaskData->pATT;
if(descriptor->getRemoteCharacteristic()->getRemoteService()->getClient()->getConnId() != conn_handle){
return 0;
}
NIMBLE_LOGI(LOG_TAG, "Write complete; status=%d conn_handle=%d", error->status, conn_handle);
pTaskData->rc = error->status;
xTaskNotifyGive(pTaskData->task);
return 0;
}
/**
* @brief Write a new value to a remote descriptor from a std::vector<uint8_t>.
* @param [in] vec A std::vector<uint8_t> value to write to the remote descriptor.
* @param [in] response Whether we require a response from the write.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteDescriptor::writeValue(const std::vector<uint8_t>& vec, bool response) {
return writeValue((uint8_t*)&vec[0], vec.size(), response);
} // writeValue
/**
* @brief Write a new value to the remote descriptor from a const char*.
* @param [in] char_s A character string to write to the remote descriptor.
* @param [in] response Whether we require a response from the write.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteDescriptor::writeValue(const char* char_s, bool response) {
return writeValue((uint8_t*)char_s, strlen(char_s), response);
} // writeValue
/**
* @brief Write a new value to a remote descriptor.
* @param [in] data The data to send to the remote descriptor.
* @param [in] length The length of the data to send.
* @param [in] response True if we expect a write response.
* @return false if not connected or otherwise cannot perform write.
*/
bool NimBLERemoteDescriptor::writeValue(const uint8_t* data, size_t length, bool response) {
NIMBLE_LOGD(LOG_TAG, ">> Descriptor writeValue: %s", toString().c_str());
NimBLEClient* pClient = getRemoteCharacteristic()->getRemoteService()->getClient();
// Check to see that we are connected.
if (!pClient->isConnected()) {
NIMBLE_LOGE(LOG_TAG, "Disconnected");
return false;
}
int rc = 0;
int retryCount = 1;
uint16_t mtu = ble_att_mtu(pClient->getConnId()) - 3;
// Check if the data length is longer than we can write in 1 connection event.
// If so we must do a long write which requires a response.
if(length <= mtu && !response) {
rc = ble_gattc_write_no_rsp_flat(pClient->getConnId(), m_handle, data, length);
return (rc == 0);
}
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, nullptr};
do {
if(length > mtu) {
NIMBLE_LOGI(LOG_TAG,"long write %d bytes", length);
os_mbuf *om = ble_hs_mbuf_from_flat(data, length);
rc = ble_gattc_write_long(pClient->getConnId(), m_handle, 0, om,
NimBLERemoteDescriptor::onWriteCB,
&taskData);
} else {
rc = ble_gattc_write_flat(pClient->getConnId(), m_handle,
data, length,
NimBLERemoteDescriptor::onWriteCB,
&taskData);
}
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to write descriptor; rc=%d", rc);
return false;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
rc = taskData.rc;
switch(rc) {
case 0:
case BLE_HS_EDONE:
rc = 0;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_ATTR_NOT_LONG):
NIMBLE_LOGE(LOG_TAG, "Long write not supported by peer; Truncating length to %d", mtu);
retryCount++;
length = mtu;
break;
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHEN):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_AUTHOR):
case BLE_HS_ATT_ERR(BLE_ATT_ERR_INSUFFICIENT_ENC):
if (retryCount && pClient->secureConnection())
break;
/* Else falls through. */
default:
return false;
}
} while(rc != 0 && retryCount--);
NIMBLE_LOGD(LOG_TAG, "<< Descriptor writeValue, rc: %d",rc);
return (rc == 0);
} // writeValue
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */

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@ -1,108 +0,0 @@
/*
* NimBLERemoteDescriptor.h
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteDescriptor.h
*
* Created on: Jul 8, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEREMOTEDESCRIPTOR_H_
#define COMPONENTS_NIMBLEREMOTEDESCRIPTOR_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLERemoteCharacteristic.h"
class NimBLERemoteCharacteristic;
/**
* @brief A model of remote %BLE descriptor.
*/
class NimBLERemoteDescriptor {
public:
uint16_t getHandle();
NimBLERemoteCharacteristic* getRemoteCharacteristic();
NimBLEUUID getUUID();
NimBLEAttValue readValue();
uint8_t readUInt8() __attribute__ ((deprecated("Use template readValue<uint8_t>()")));
uint16_t readUInt16() __attribute__ ((deprecated("Use template readValue<uint16_t>()")));
uint32_t readUInt32() __attribute__ ((deprecated("Use template readValue<uint32_t>()")));
std::string toString(void);
bool writeValue(const uint8_t* data, size_t length, bool response = false);
bool writeValue(const std::vector<uint8_t>& v, bool response = false);
bool writeValue(const char* s, bool response = false);
/*********************** Template Functions ************************/
/**
* @brief Template to set the remote descriptor value to <type\>val.
* @param [in] s The value to write.
* @param [in] response True == request write response.
* @details Only used for non-arrays and types without a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<!std::is_array<T>::value && !Has_c_str_len<T>::value, bool>::type
#endif
writeValue(const T& s, bool response = false) {
return writeValue((uint8_t*)&s, sizeof(T), response);
}
/**
* @brief Template to set the remote descriptor value to <type\>val.
* @param [in] s The value to write.
* @param [in] response True == request write response.
* @details Only used if the <type\> has a `c_str()` method.
*/
template<typename T>
#ifdef _DOXYGEN_
bool
#else
typename std::enable_if<Has_c_str_len<T>::value, bool>::type
#endif
writeValue(const T& s, bool response = false) {
return writeValue((uint8_t*)s.c_str(), s.length(), response);
}
/**
* @brief Template to convert the remote descriptor data to <type\>.
* @tparam T The type to convert the data to.
* @param [in] skipSizeCheck If true it will skip checking if the data size is less than <tt>sizeof(<type\>)</tt>.
* @return The data converted to <type\> or NULL if skipSizeCheck is false and the data is
* less than <tt>sizeof(<type\>)</tt>.
* @details <b>Use:</b> <tt>readValue<type>(skipSizeCheck);</tt>
*/
template<typename T>
T readValue(bool skipSizeCheck = false) {
NimBLEAttValue value = readValue();
if(!skipSizeCheck && value.size() < sizeof(T)) return T();
return *((T *)value.data());
}
private:
friend class NimBLERemoteCharacteristic;
NimBLERemoteDescriptor (NimBLERemoteCharacteristic* pRemoteCharacteristic,
const struct ble_gatt_dsc *dsc);
static int onWriteCB(uint16_t conn_handle, const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg);
static int onReadCB(uint16_t conn_handle, const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg);
uint16_t m_handle;
NimBLEUUID m_uuid;
NimBLERemoteCharacteristic* m_pRemoteCharacteristic;
};
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */
#endif /* COMPONENTS_NIMBLEREMOTEDESCRIPTOR_H_ */

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/*
* NimBLERemoteService.cpp
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteService.cpp
*
* Created on: Jul 8, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLERemoteService.h"
#include "NimBLEUtils.h"
#include "NimBLEDevice.h"
#include "NimBLELog.h"
#include <climits>
static const char* LOG_TAG = "NimBLERemoteService";
/**
* @brief Remote Service constructor.
* @param [in] pClient A pointer to the client this belongs to.
* @param [in] service A pointer to the structure with the service information.
*/
NimBLERemoteService::NimBLERemoteService(NimBLEClient* pClient, const struct ble_gatt_svc* service) {
NIMBLE_LOGD(LOG_TAG, ">> NimBLERemoteService()");
m_pClient = pClient;
switch (service->uuid.u.type) {
case BLE_UUID_TYPE_16:
m_uuid = NimBLEUUID(service->uuid.u16.value);
break;
case BLE_UUID_TYPE_32:
m_uuid = NimBLEUUID(service->uuid.u32.value);
break;
case BLE_UUID_TYPE_128:
m_uuid = NimBLEUUID(const_cast<ble_uuid128_t*>(&service->uuid.u128));
break;
default:
break;
}
m_startHandle = service->start_handle;
m_endHandle = service->end_handle;
NIMBLE_LOGD(LOG_TAG, "<< NimBLERemoteService(): %s", m_uuid.toString().c_str());
}
/**
* @brief When deleting the service make sure we delete all characteristics and descriptors.
*/
NimBLERemoteService::~NimBLERemoteService() {
deleteCharacteristics();
}
/**
* @brief Get iterator to the beginning of the vector of remote characteristic pointers.
* @return An iterator to the beginning of the vector of remote characteristic pointers.
*/
std::vector<NimBLERemoteCharacteristic*>::iterator NimBLERemoteService::begin() {
return m_characteristicVector.begin();
}
/**
* @brief Get iterator to the end of the vector of remote characteristic pointers.
* @return An iterator to the end of the vector of remote characteristic pointers.
*/
std::vector<NimBLERemoteCharacteristic*>::iterator NimBLERemoteService::end() {
return m_characteristicVector.end();
}
/**
* @brief Get the remote characteristic object for the characteristic UUID.
* @param [in] uuid Remote characteristic uuid.
* @return A pointer to the remote characteristic object.
*/
NimBLERemoteCharacteristic* NimBLERemoteService::getCharacteristic(const char* uuid) {
return getCharacteristic(NimBLEUUID(uuid));
} // getCharacteristic
/**
* @brief Get the characteristic object for the UUID.
* @param [in] uuid Characteristic uuid.
* @return A pointer to the characteristic object, or nullptr if not found.
*/
NimBLERemoteCharacteristic* NimBLERemoteService::getCharacteristic(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> getCharacteristic: uuid: %s", uuid.toString().c_str());
for(auto &it: m_characteristicVector) {
if(it->getUUID() == uuid) {
NIMBLE_LOGD(LOG_TAG, "<< getCharacteristic: found the characteristic with uuid: %s", uuid.toString().c_str());
return it;
}
}
size_t prev_size = m_characteristicVector.size();
if(retrieveCharacteristics(&uuid)) {
if(m_characteristicVector.size() > prev_size) {
return m_characteristicVector.back();
}
// If the request was successful but 16/32 bit uuid not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
if (retrieveCharacteristics(&uuid128)) {
if(m_characteristicVector.size() > prev_size) {
return m_characteristicVector.back();
}
}
} else {
// If the request was successful but the 128 bit uuid not found
// try again with the 16 bit uuid.
NimBLEUUID uuid16(uuid);
uuid16.to16();
// if the uuid was 128 bit but not of the BLE base type this check will fail
if (uuid16.bitSize() == BLE_UUID_TYPE_16) {
if(retrieveCharacteristics(&uuid16)) {
if(m_characteristicVector.size() > prev_size) {
return m_characteristicVector.back();
}
}
}
}
}
NIMBLE_LOGD(LOG_TAG, "<< getCharacteristic: not found");
return nullptr;
} // getCharacteristic
/**
* @brief Get a pointer to the vector of found characteristics.
* @param [in] refresh If true the current characteristics vector will cleared and
* all characteristics for this service retrieved from the peripheral.
* If false the vector will be returned with the currently stored characteristics of this service.
* @return A pointer to the vector of descriptors for this characteristic.
*/
std::vector<NimBLERemoteCharacteristic*>* NimBLERemoteService::getCharacteristics(bool refresh) {
if(refresh) {
deleteCharacteristics();
if (!retrieveCharacteristics()) {
NIMBLE_LOGE(LOG_TAG, "Error: Failed to get characteristics");
}
else{
NIMBLE_LOGI(LOG_TAG, "Found %d characteristics", m_characteristicVector.size());
}
}
return &m_characteristicVector;
} // getCharacteristics
/**
* @brief Callback for Characteristic discovery.
* @return success == 0 or error code.
*/
int NimBLERemoteService::characteristicDiscCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg)
{
NIMBLE_LOGD(LOG_TAG,"Characteristic Discovered >> status: %d handle: %d",
error->status, (error->status == 0) ? chr->val_handle : -1);
ble_task_data_t *pTaskData = (ble_task_data_t*)arg;
NimBLERemoteService *service = (NimBLERemoteService*)pTaskData->pATT;
// Make sure the discovery is for this device
if(service->getClient()->getConnId() != conn_handle){
return 0;
}
if(error->status == 0) {
// Found a service - add it to the vector
NimBLERemoteCharacteristic* pRemoteCharacteristic = new NimBLERemoteCharacteristic(service, chr);
service->m_characteristicVector.push_back(pRemoteCharacteristic);
return 0;
}
if(error->status == BLE_HS_EDONE) {
pTaskData->rc = 0;
} else {
NIMBLE_LOGE(LOG_TAG, "characteristicDiscCB() rc=%d %s",
error->status,
NimBLEUtils::returnCodeToString(error->status));
pTaskData->rc = error->status;
}
xTaskNotifyGive(pTaskData->task);
NIMBLE_LOGD(LOG_TAG,"<< Characteristic Discovered");
return error->status;
}
/**
* @brief Retrieve all the characteristics for this service.
* This function will not return until we have all the characteristics.
* @return True if successful.
*/
bool NimBLERemoteService::retrieveCharacteristics(const NimBLEUUID *uuid_filter) {
NIMBLE_LOGD(LOG_TAG, ">> retrieveCharacteristics() for service: %s", getUUID().toString().c_str());
int rc = 0;
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {this, cur_task, 0, nullptr};
if(uuid_filter == nullptr) {
rc = ble_gattc_disc_all_chrs(m_pClient->getConnId(),
m_startHandle,
m_endHandle,
NimBLERemoteService::characteristicDiscCB,
&taskData);
} else {
rc = ble_gattc_disc_chrs_by_uuid(m_pClient->getConnId(),
m_startHandle,
m_endHandle,
&uuid_filter->getNative()->u,
NimBLERemoteService::characteristicDiscCB,
&taskData);
}
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gattc_disc_all_chrs: rc=%d %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
if(taskData.rc == 0){
if (uuid_filter == nullptr) {
if (m_characteristicVector.size() > 1) {
for (auto it = m_characteristicVector.begin(); it != m_characteristicVector.end(); ++it ) {
auto nx = std::next(it, 1);
if (nx == m_characteristicVector.end()) {
break;
}
(*it)->m_endHandle = (*nx)->m_defHandle - 1;
}
}
if (m_characteristicVector.size() > 0) {
m_characteristicVector.back()->m_endHandle = getEndHandle();
}
}
NIMBLE_LOGD(LOG_TAG, "<< retrieveCharacteristics()");
return true;
}
NIMBLE_LOGE(LOG_TAG, "Could not retrieve characteristics");
return false;
} // retrieveCharacteristics
/**
* @brief Get the client associated with this service.
* @return A reference to the client associated with this service.
*/
NimBLEClient* NimBLERemoteService::getClient() {
return m_pClient;
} // getClient
/**
* @brief Get the service end handle.
*/
uint16_t NimBLERemoteService::getEndHandle() {
return m_endHandle;
} // getEndHandle
/**
* @brief Get the service start handle.
*/
uint16_t NimBLERemoteService::getStartHandle() {
return m_startHandle;
} // getStartHandle
/**
* @brief Get the service UUID.
*/
NimBLEUUID NimBLERemoteService::getUUID() {
return m_uuid;
}
/**
* @brief Read the value of a characteristic associated with this service.
* @param [in] characteristicUuid The characteristic to read.
* @returns a string containing the value or an empty string if not found or error.
*/
std::string NimBLERemoteService::getValue(const NimBLEUUID &characteristicUuid) {
NIMBLE_LOGD(LOG_TAG, ">> readValue: uuid: %s", characteristicUuid.toString().c_str());
std::string ret = "";
NimBLERemoteCharacteristic* pChar = getCharacteristic(characteristicUuid);
if(pChar != nullptr) {
ret = pChar->readValue();
}
NIMBLE_LOGD(LOG_TAG, "<< readValue");
return ret;
} // readValue
/**
* @brief Set the value of a characteristic.
* @param [in] characteristicUuid The characteristic to set.
* @param [in] value The value to set.
* @returns true on success, false if not found or error
*/
bool NimBLERemoteService::setValue(const NimBLEUUID &characteristicUuid, const std::string &value) {
NIMBLE_LOGD(LOG_TAG, ">> setValue: uuid: %s", characteristicUuid.toString().c_str());
bool ret = false;
NimBLERemoteCharacteristic* pChar = getCharacteristic(characteristicUuid);
if(pChar != nullptr) {
ret = pChar->writeValue(value);
}
NIMBLE_LOGD(LOG_TAG, "<< setValue");
return ret;
} // setValue
/**
* @brief Delete the characteristics in the characteristics vector.
* @details We maintain a vector called m_characteristicsVector that contains pointers to BLERemoteCharacteristic
* object references. Since we allocated these in this class, we are also responsible for deleting
* them. This method does just that.
*/
void NimBLERemoteService::deleteCharacteristics() {
NIMBLE_LOGD(LOG_TAG, ">> deleteCharacteristics");
for(auto &it: m_characteristicVector) {
delete it;
}
m_characteristicVector.clear();
NIMBLE_LOGD(LOG_TAG, "<< deleteCharacteristics");
} // deleteCharacteristics
/**
* @brief Delete characteristic by UUID
* @param [in] uuid The UUID of the characteristic to be removed from the local database.
* @return Number of characteristics left.
*/
size_t NimBLERemoteService::deleteCharacteristic(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> deleteCharacteristic");
for(auto it = m_characteristicVector.begin(); it != m_characteristicVector.end(); ++it) {
if((*it)->getUUID() == uuid) {
delete *it;
m_characteristicVector.erase(it);
break;
}
}
NIMBLE_LOGD(LOG_TAG, "<< deleteCharacteristic");
return m_characteristicVector.size();
} // deleteCharacteristic
/**
* @brief Create a string representation of this remote service.
* @return A string representation of this remote service.
*/
std::string NimBLERemoteService::toString() {
std::string res = "Service: uuid: " + m_uuid.toString();
char val[6];
res += ", start_handle: ";
snprintf(val, sizeof(val), "%d", m_startHandle);
res += val;
snprintf(val, sizeof(val), "%04x", m_startHandle);
res += " 0x";
res += val;
res += ", end_handle: ";
snprintf(val, sizeof(val), "%d", m_endHandle);
res += val;
snprintf(val, sizeof(val), "%04x", m_endHandle);
res += " 0x";
res += val;
for (auto &it: m_characteristicVector) {
res += "\n" + it->toString();
}
return res;
} // toString
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */

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/*
* NimBLERemoteService.h
*
* Created: on Jan 27 2020
* Author H2zero
*
* Originally:
*
* BLERemoteService.h
*
* Created on: Jul 8, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEREMOTESERVICE_H_
#define COMPONENTS_NIMBLEREMOTESERVICE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
#include "NimBLEClient.h"
#include "NimBLEUUID.h"
#include "NimBLERemoteCharacteristic.h"
#include <vector>
class NimBLEClient;
class NimBLERemoteCharacteristic;
/**
* @brief A model of a remote %BLE service.
*/
class NimBLERemoteService {
public:
virtual ~NimBLERemoteService();
// Public methods
std::vector<NimBLERemoteCharacteristic*>::iterator begin();
std::vector<NimBLERemoteCharacteristic*>::iterator end();
NimBLERemoteCharacteristic* getCharacteristic(const char* uuid);
NimBLERemoteCharacteristic* getCharacteristic(const NimBLEUUID &uuid);
void deleteCharacteristics();
size_t deleteCharacteristic(const NimBLEUUID &uuid);
NimBLEClient* getClient(void);
//uint16_t getHandle();
NimBLEUUID getUUID(void);
std::string getValue(const NimBLEUUID &characteristicUuid);
bool setValue(const NimBLEUUID &characteristicUuid,
const std::string &value);
std::string toString(void);
std::vector<NimBLERemoteCharacteristic*>* getCharacteristics(bool refresh = false);
private:
// Private constructor ... never meant to be created by a user application.
NimBLERemoteService(NimBLEClient* pClient, const struct ble_gatt_svc *service);
// Friends
friend class NimBLEClient;
friend class NimBLERemoteCharacteristic;
// Private methods
bool retrieveCharacteristics(const NimBLEUUID *uuid_filter = nullptr);
static int characteristicDiscCB(uint16_t conn_handle,
const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr,
void *arg);
uint16_t getStartHandle();
uint16_t getEndHandle();
void releaseSemaphores();
// Properties
// We maintain a vector of characteristics owned by this service.
std::vector<NimBLERemoteCharacteristic*> m_characteristicVector;
NimBLEClient* m_pClient;
NimBLEUUID m_uuid;
uint16_t m_startHandle;
uint16_t m_endHandle;
}; // NimBLERemoteService
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_CENTRAL */
#endif /* COMPONENTS_NIMBLEREMOTESERVICE_H_ */

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@ -1,585 +0,0 @@
/*
* NimBLEScan.cpp
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEScan.cpp
*
* Created on: Jul 1, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
#include "NimBLEScan.h"
#include "NimBLEDevice.h"
#include "NimBLELog.h"
#include <string>
#include <climits>
static const char* LOG_TAG = "NimBLEScan";
/**
* @brief Scan constuctor.
*/
NimBLEScan::NimBLEScan() {
m_scan_params.filter_policy = BLE_HCI_SCAN_FILT_NO_WL;
m_scan_params.passive = 1; // If set, don’t send scan requests to advertisers (i.e., don’t request additional advertising data).
m_scan_params.itvl = 0; // This is defined as the time interval from when the Controller started its last LE scan until it begins the subsequent LE scan. (units=0.625 msec)
m_scan_params.window = 0; // The duration of the LE scan. LE_Scan_Window shall be less than or equal to LE_Scan_Interval (units=0.625 msec)
m_scan_params.limited = 0; // If set, only discover devices in limited discoverable mode.
m_scan_params.filter_duplicates = 1; // If set, the controller ignores all but the first advertisement from each device.
m_pAdvertisedDeviceCallbacks = nullptr;
m_ignoreResults = false;
m_pTaskData = nullptr;
m_duration = BLE_HS_FOREVER; // make sure this is non-zero in the event of a host reset
m_maxResults = 0xFF;
}
/**
* @brief Scan destructor, release any allocated resources.
*/
NimBLEScan::~NimBLEScan() {
clearResults();
}
/**
* @brief Handle GAP events related to scans.
* @param [in] event The event type for this event.
* @param [in] param Parameter data for this event.
*/
/*STATIC*/int NimBLEScan::handleGapEvent(ble_gap_event* event, void* arg) {
(void)arg;
NimBLEScan* pScan = NimBLEDevice::getScan();
switch(event->type) {
case BLE_GAP_EVENT_EXT_DISC:
case BLE_GAP_EVENT_DISC: {
if(pScan->m_ignoreResults) {
NIMBLE_LOGI(LOG_TAG, "Scan op in progress - ignoring results");
return 0;
}
#if CONFIG_BT_NIMBLE_EXT_ADV
const auto& disc = event->ext_disc;
const bool isLegacyAdv = disc.props & BLE_HCI_ADV_LEGACY_MASK;
const auto event_type = isLegacyAdv ? disc.legacy_event_type : disc.props;
#else
const auto& disc = event->disc;
const bool isLegacyAdv = true;
const auto event_type = disc.event_type;
#endif
NimBLEAddress advertisedAddress(disc.addr);
// Examine our list of ignored addresses and stop processing if we don't want to see it or are already connected
if(NimBLEDevice::isIgnored(advertisedAddress)) {
NIMBLE_LOGI(LOG_TAG, "Ignoring device: address: %s", advertisedAddress.toString().c_str());
return 0;
}
NimBLEAdvertisedDevice* advertisedDevice = nullptr;
// If we've seen this device before get a pointer to it from the vector
for(auto &it: pScan->m_scanResults.m_advertisedDevicesVector) {
#if CONFIG_BT_NIMBLE_EXT_ADV
// Same address but different set ID should create a new advertised device.
if (it->getAddress() == advertisedAddress && it->getSetId() == disc.sid) {
#else
if (it->getAddress() == advertisedAddress) {
#endif
advertisedDevice = it;
break;
}
}
// If we haven't seen this device before; create a new instance and insert it in the vector.
// Otherwise just update the relevant parameters of the already known device.
if (advertisedDevice == nullptr &&
(!isLegacyAdv || event_type != BLE_HCI_ADV_RPT_EVTYPE_SCAN_RSP)) {
// Check if we have reach the scan results limit, ignore this one if so.
// We still need to store each device when maxResults is 0 to be able to append the scan results
if (pScan->m_maxResults > 0 && pScan->m_maxResults < 0xFF &&
(pScan->m_scanResults.m_advertisedDevicesVector.size() >= pScan->m_maxResults)) {
return 0;
}
advertisedDevice = new NimBLEAdvertisedDevice();
advertisedDevice->setAddress(advertisedAddress);
advertisedDevice->setAdvType(event_type, isLegacyAdv);
#if CONFIG_BT_NIMBLE_EXT_ADV
advertisedDevice->setSetId(disc.sid);
advertisedDevice->setPrimaryPhy(disc.prim_phy);
advertisedDevice->setSecondaryPhy(disc.sec_phy);
advertisedDevice->setPeriodicInterval(disc.periodic_adv_itvl);
#endif
pScan->m_scanResults.m_advertisedDevicesVector.push_back(advertisedDevice);
NIMBLE_LOGI(LOG_TAG, "New advertiser: %s", advertisedAddress.toString().c_str());
} else if (advertisedDevice != nullptr) {
NIMBLE_LOGI(LOG_TAG, "Updated advertiser: %s", advertisedAddress.toString().c_str());
} else {
// Scan response from unknown device
return 0;
}
advertisedDevice->m_timestamp = time(nullptr);
advertisedDevice->setRSSI(disc.rssi);
advertisedDevice->setPayload(disc.data, disc.length_data, (isLegacyAdv &&
event_type == BLE_HCI_ADV_RPT_EVTYPE_SCAN_RSP));
if (pScan->m_pAdvertisedDeviceCallbacks) {
if (pScan->m_scan_params.filter_duplicates && advertisedDevice->m_callbackSent) {
return 0;
}
// If not active scanning or scan response is not available
// or extended advertisement scanning, report the result to the callback now.
if(pScan->m_scan_params.passive || !isLegacyAdv ||
(advertisedDevice->getAdvType() != BLE_HCI_ADV_TYPE_ADV_IND &&
advertisedDevice->getAdvType() != BLE_HCI_ADV_TYPE_ADV_SCAN_IND))
{
advertisedDevice->m_callbackSent = true;
pScan->m_pAdvertisedDeviceCallbacks->onResult(advertisedDevice);
// Otherwise, wait for the scan response so we can report the complete data.
} else if (isLegacyAdv && event_type == BLE_HCI_ADV_RPT_EVTYPE_SCAN_RSP) {
advertisedDevice->m_callbackSent = true;
pScan->m_pAdvertisedDeviceCallbacks->onResult(advertisedDevice);
}
// If not storing results and we have invoked the callback, delete the device.
if(pScan->m_maxResults == 0 && advertisedDevice->m_callbackSent) {
pScan->erase(advertisedAddress);
}
}
return 0;
}
case BLE_GAP_EVENT_DISC_COMPLETE: {
NIMBLE_LOGD(LOG_TAG, "discovery complete; reason=%d",
event->disc_complete.reason);
// If a device advertised with scan response available and it was not received
// the callback would not have been invoked, so do it here.
if(pScan->m_pAdvertisedDeviceCallbacks) {
for(auto &it : pScan->m_scanResults.m_advertisedDevicesVector) {
if(!it->m_callbackSent) {
pScan->m_pAdvertisedDeviceCallbacks->onResult(it);
}
}
}
if(pScan->m_maxResults == 0) {
pScan->clearResults();
}
if (pScan->m_scanCompleteCB != nullptr) {
pScan->m_scanCompleteCB(pScan->m_scanResults);
}
if(pScan->m_pTaskData != nullptr) {
pScan->m_pTaskData->rc = event->disc_complete.reason;
xTaskNotifyGive(pScan->m_pTaskData->task);
}
return 0;
}
default:
return 0;
}
} // gapEventHandler
/**
* @brief Should we perform an active or passive scan?
* The default is a passive scan. An active scan means that we will request a scan response.
* @param [in] active If true, we perform an active scan otherwise a passive scan.
*/
void NimBLEScan::setActiveScan(bool active) {
m_scan_params.passive = !active;
} // setActiveScan
/**
* @brief Set whether or not the BLE controller should only report results
* from devices it has not already seen.
* @param [in] enabled If true, scanned devices will only be reported once.
* @details The controller has a limited buffer and will start reporting
* duplicate devices once the limit is reached.
*/
void NimBLEScan::setDuplicateFilter(bool enabled) {
m_scan_params.filter_duplicates = enabled;
} // setDuplicateFilter
/**
* @brief Set whether or not the BLE controller only report scan results
* from devices advertising in limited discovery mode, i.e. directed advertising.
* @param [in] enabled If true, only limited discovery devices will be in scan results.
*/
void NimBLEScan::setLimitedOnly(bool enabled) {
m_scan_params.limited = enabled;
} // setLimited
/**
* @brief Sets the scan filter policy.
* @param [in] filter Can be one of:
* * BLE_HCI_SCAN_FILT_NO_WL (0)
* Scanner processes all advertising packets (white list not used) except\n
* directed, connectable advertising packets not sent to the scanner.
* * BLE_HCI_SCAN_FILT_USE_WL (1)
* Scanner processes advertisements from white list only. A connectable,\n
* directed advertisement is ignored unless it contains scanners address.
* * BLE_HCI_SCAN_FILT_NO_WL_INITA (2)
* Scanner process all advertising packets (white list not used). A\n
* connectable, directed advertisement shall not be ignored if the InitA
* is a resolvable private address.
* * BLE_HCI_SCAN_FILT_USE_WL_INITA (3)
* Scanner process advertisements from white list only. A connectable,\n
* directed advertisement shall not be ignored if the InitA is a
* resolvable private address.
*/
void NimBLEScan::setFilterPolicy(uint8_t filter) {
m_scan_params.filter_policy = filter;
} // setFilterPolicy
/**
* @brief Sets the max number of results to store.
* @param [in] maxResults The number of results to limit storage to\n
* 0 == none (callbacks only) 0xFF == unlimited, any other value is the limit.
*/
void NimBLEScan::setMaxResults(uint8_t maxResults) {
m_maxResults = maxResults;
}
/**
* @brief Set the call backs to be invoked.
* @param [in] pAdvertisedDeviceCallbacks Call backs to be invoked.
* @param [in] wantDuplicates True if we wish to be called back with duplicates. Default is false.
*/
void NimBLEScan::setAdvertisedDeviceCallbacks(NimBLEAdvertisedDeviceCallbacks* pAdvertisedDeviceCallbacks,
bool wantDuplicates) {
setDuplicateFilter(!wantDuplicates);
m_pAdvertisedDeviceCallbacks = pAdvertisedDeviceCallbacks;
} // setAdvertisedDeviceCallbacks
/**
* @brief Set the interval to scan.
* @param [in] intervalMSecs The scan interval (how often) in milliseconds.
*/
void NimBLEScan::setInterval(uint16_t intervalMSecs) {
m_scan_params.itvl = intervalMSecs / 0.625;
} // setInterval
/**
* @brief Set the window to actively scan.
* @param [in] windowMSecs How long to actively scan.
*/
void NimBLEScan::setWindow(uint16_t windowMSecs) {
m_scan_params.window = windowMSecs / 0.625;
} // setWindow
/**
* @brief Get the status of the scanner.
* @return true if scanning or scan starting.
*/
bool NimBLEScan::isScanning() {
return ble_gap_disc_active();
}
/**
* @brief Start scanning.
* @param [in] duration The duration in seconds for which to scan.
* @param [in] scanCompleteCB A function to be called when scanning has completed.
* @param [in] is_continue Set to true to save previous scan results, false to clear them.
* @return True if scan started or false if there was an error.
*/
bool NimBLEScan::start(uint32_t duration, void (*scanCompleteCB)(NimBLEScanResults), bool is_continue) {
NIMBLE_LOGD(LOG_TAG, ">> start: duration=%" PRIu32, duration);
// Save the callback to be invoked when the scan completes.
m_scanCompleteCB = scanCompleteCB;
// Save the duration in the case that the host is reset so we can reuse it.
m_duration = duration;
// If 0 duration specified then we assume a continuous scan is desired.
if(duration == 0){
duration = BLE_HS_FOREVER;
}
else{
// convert duration to milliseconds
duration = duration * 1000;
}
// Set the flag to ignore the results while we are deleting the vector
if(!is_continue) {
m_ignoreResults = true;
}
# if CONFIG_BT_NIMBLE_EXT_ADV
ble_gap_ext_disc_params scan_params;
scan_params.passive = m_scan_params.passive;
scan_params.itvl = m_scan_params.itvl;
scan_params.window = m_scan_params.window;
int rc = ble_gap_ext_disc(NimBLEDevice::m_own_addr_type,
duration/10,
0,
m_scan_params.filter_duplicates,
m_scan_params.filter_policy,
m_scan_params.limited,
&scan_params,
&scan_params,
NimBLEScan::handleGapEvent,
NULL);
#else
int rc = ble_gap_disc(NimBLEDevice::m_own_addr_type,
duration,
&m_scan_params,
NimBLEScan::handleGapEvent,
NULL);
#endif
switch(rc) {
case 0:
if(!is_continue) {
clearResults();
}
break;
case BLE_HS_EALREADY:
// Clear the cache if already scanning in case an advertiser was missed.
clearDuplicateCache();
break;
case BLE_HS_EBUSY:
NIMBLE_LOGE(LOG_TAG, "Unable to scan - connection in progress.");
break;
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGC(LOG_TAG, "Unable to scan - Host Reset");
break;
default:
NIMBLE_LOGE(LOG_TAG, "Error initiating GAP discovery procedure; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
break;
}
m_ignoreResults = false;
NIMBLE_LOGD(LOG_TAG, "<< start()");
if(rc != 0 && rc != BLE_HS_EALREADY) {
return false;
}
return true;
} // start
/**
* @brief Start scanning and block until scanning has been completed.
* @param [in] duration The duration in seconds for which to scan.
* @param [in] is_continue Set to true to save previous scan results, false to clear them.
* @return The NimBLEScanResults.
*/
NimBLEScanResults NimBLEScan::start(uint32_t duration, bool is_continue) {
if(duration == 0) {
NIMBLE_LOGW(LOG_TAG, "Blocking scan called with duration = forever");
}
TaskHandle_t cur_task = xTaskGetCurrentTaskHandle();
ble_task_data_t taskData = {nullptr, cur_task, 0, nullptr};
m_pTaskData = &taskData;
if(start(duration, nullptr, is_continue)) {
#ifdef ulTaskNotifyValueClear
// Clear the task notification value to ensure we block
ulTaskNotifyValueClear(cur_task, ULONG_MAX);
#endif
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
}
m_pTaskData = nullptr;
return m_scanResults;
} // start
/**
* @brief Stop an in progress scan.
* @return True if successful.
*/
bool NimBLEScan::stop() {
NIMBLE_LOGD(LOG_TAG, ">> stop()");
int rc = ble_gap_disc_cancel();
if (rc != 0 && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "Failed to cancel scan; rc=%d", rc);
return false;
}
if(m_maxResults == 0) {
clearResults();
}
if (rc != BLE_HS_EALREADY && m_scanCompleteCB != nullptr) {
m_scanCompleteCB(m_scanResults);
}
if(m_pTaskData != nullptr) {
xTaskNotifyGive(m_pTaskData->task);
}
NIMBLE_LOGD(LOG_TAG, "<< stop()");
return true;
} // stop
/**
* @brief Clears the duplicate scan filter cache.
*/
void NimBLEScan::clearDuplicateCache() {
#ifdef CONFIG_IDF_TARGET_ESP32 // Not available for ESP32C3
esp_ble_scan_dupilcate_list_flush();
#endif
}
/**
* @brief Delete peer device from the scan results vector.
* @param [in] address The address of the device to delete from the results.
* @details After disconnecting, it may be required in the case we were connected to a device without a public address.
*/
void NimBLEScan::erase(const NimBLEAddress &address) {
NIMBLE_LOGD(LOG_TAG, "erase device: %s", address.toString().c_str());
for(auto it = m_scanResults.m_advertisedDevicesVector.begin(); it != m_scanResults.m_advertisedDevicesVector.end(); ++it) {
if((*it)->getAddress() == address) {
delete *it;
m_scanResults.m_advertisedDevicesVector.erase(it);
break;
}
}
}
/**
* @brief Called when host reset, we set a flag to stop scanning until synced.
*/
void NimBLEScan::onHostReset() {
m_ignoreResults = true;
}
/**
* @brief If the host reset and re-synced this is called.
* If the application was scanning indefinitely with a callback, restart it.
*/
void NimBLEScan::onHostSync() {
m_ignoreResults = false;
if(m_duration == 0 && m_pAdvertisedDeviceCallbacks != nullptr) {
start(m_duration, m_scanCompleteCB);
}
}
/**
* @brief Get the results of the scan.
* @return NimBLEScanResults object.
*/
NimBLEScanResults NimBLEScan::getResults() {
return m_scanResults;
}
/**
* @brief Clear the results of the scan.
*/
void NimBLEScan::clearResults() {
for(auto &it: m_scanResults.m_advertisedDevicesVector) {
delete it;
}
m_scanResults.m_advertisedDevicesVector.clear();
clearDuplicateCache();
}
/**
* @brief Dump the scan results to the log.
*/
void NimBLEScanResults::dump() {
NIMBLE_LOGD(LOG_TAG, ">> Dump scan results:");
for (int i=0; i<getCount(); i++) {
NIMBLE_LOGI(LOG_TAG, "- %s", getDevice(i).toString().c_str());
}
} // dump
/**
* @brief Get the count of devices found in the last scan.
* @return The number of devices found in the last scan.
*/
int NimBLEScanResults::getCount() {
return m_advertisedDevicesVector.size();
} // getCount
/**
* @brief Return the specified device at the given index.
* The index should be between 0 and getCount()-1.
* @param [in] i The index of the device.
* @return The device at the specified index.
*/
NimBLEAdvertisedDevice NimBLEScanResults::getDevice(uint32_t i) {
return *m_advertisedDevicesVector[i];
}
/**
* @brief Get iterator to the beginning of the vector of advertised device pointers.
* @return An iterator to the beginning of the vector of advertised device pointers.
*/
std::vector<NimBLEAdvertisedDevice*>::iterator NimBLEScanResults::begin() {
return m_advertisedDevicesVector.begin();
}
/**
* @brief Get iterator to the end of the vector of advertised device pointers.
* @return An iterator to the end of the vector of advertised device pointers.
*/
std::vector<NimBLEAdvertisedDevice*>::iterator NimBLEScanResults::end() {
return m_advertisedDevicesVector.end();
}
/**
* @brief Get a pointer to the specified device at the given address.
* If the address is not found a nullptr is returned.
* @param [in] address The address of the device.
* @return A pointer to the device at the specified address.
*/
NimBLEAdvertisedDevice *NimBLEScanResults::getDevice(const NimBLEAddress &address) {
for(size_t index = 0; index < m_advertisedDevicesVector.size(); index++) {
if(m_advertisedDevicesVector[index]->getAddress() == address) {
return m_advertisedDevicesVector[index];
}
}
return nullptr;
}
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_OBSERVER */

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/*
* NimBLEScan.h
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEScan.h
*
* Created on: Jul 1, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLE_SCAN_H_
#define COMPONENTS_NIMBLE_SCAN_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_OBSERVER)
#include "NimBLEAdvertisedDevice.h"
#include "NimBLEUtils.h"
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_gap.h"
#else
#include "nimble/nimble/host/include/host/ble_gap.h"
#endif
#include <vector>
class NimBLEDevice;
class NimBLEScan;
class NimBLEAdvertisedDevice;
class NimBLEAdvertisedDeviceCallbacks;
class NimBLEAddress;
/**
* @brief A class that contains and operates on the results of a BLE scan.
* @details When a scan completes, we have a set of found devices. Each device is described
* by a NimBLEAdvertisedDevice object. The number of items in the set is given by
* getCount(). We can retrieve a device by calling getDevice() passing in the
* index (starting at 0) of the desired device.
*/
class NimBLEScanResults {
public:
void dump();
int getCount();
NimBLEAdvertisedDevice getDevice(uint32_t i);
std::vector<NimBLEAdvertisedDevice*>::iterator begin();
std::vector<NimBLEAdvertisedDevice*>::iterator end();
NimBLEAdvertisedDevice *getDevice(const NimBLEAddress &address);
private:
friend NimBLEScan;
std::vector<NimBLEAdvertisedDevice*> m_advertisedDevicesVector;
};
/**
* @brief Perform and manage %BLE scans.
*
* Scanning is associated with a %BLE client that is attempting to locate BLE servers.
*/
class NimBLEScan {
public:
bool start(uint32_t duration, void (*scanCompleteCB)(NimBLEScanResults), bool is_continue = false);
NimBLEScanResults start(uint32_t duration, bool is_continue = false);
bool isScanning();
void setAdvertisedDeviceCallbacks(NimBLEAdvertisedDeviceCallbacks* pAdvertisedDeviceCallbacks, bool wantDuplicates = false);
void setActiveScan(bool active);
void setInterval(uint16_t intervalMSecs);
void setWindow(uint16_t windowMSecs);
void setDuplicateFilter(bool enabled);
void setLimitedOnly(bool enabled);
void setFilterPolicy(uint8_t filter);
void clearDuplicateCache();
bool stop();
void clearResults();
NimBLEScanResults getResults();
void setMaxResults(uint8_t maxResults);
void erase(const NimBLEAddress &address);
private:
friend class NimBLEDevice;
NimBLEScan();
~NimBLEScan();
static int handleGapEvent(ble_gap_event* event, void* arg);
void onHostReset();
void onHostSync();
NimBLEAdvertisedDeviceCallbacks* m_pAdvertisedDeviceCallbacks = nullptr;
void (*m_scanCompleteCB)(NimBLEScanResults scanResults);
ble_gap_disc_params m_scan_params;
bool m_ignoreResults;
NimBLEScanResults m_scanResults;
uint32_t m_duration;
ble_task_data_t *m_pTaskData;
uint8_t m_maxResults;
};
#endif /* CONFIG_BT_ENABLED CONFIG_BT_NIMBLE_ROLE_OBSERVER */
#endif /* COMPONENTS_NIMBLE_SCAN_H_ */

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/*
* NimBLESecurity.cpp
*
* Created: on Feb 22 2020
* Author H2zero
*
* Originally:
*
* BLESecurity.cpp
*
* Created on: Dec 17, 2017
* Author: chegewara
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include "NimBLESecurity.h"
#include "NimBLEDevice.h"
NimBLESecurity::NimBLESecurity() {
}
NimBLESecurity::~NimBLESecurity() {
}
/**
* @brief Set requested authentication mode
* @param [in] auth_req A bitmask containing one or more of:
* * ESP_LE_AUTH_NO_BOND 0x00
* * ESP_LE_AUTH_BOND 0x01
* * ESP_LE_AUTH_REQ_MITM (1 << 2)
* * ESP_LE_AUTH_REQ_BOND_MITM (ESP_LE_AUTH_BOND | ESP_LE_AUTH_REQ_MITM)
* * ESP_LE_AUTH_REQ_SC_ONLY (1 << 3)
* * ESP_LE_AUTH_REQ_SC_BOND (ESP_LE_AUTH_BOND | ESP_LE_AUTH_REQ_SC_ONLY)
* * ESP_LE_AUTH_REQ_SC_MITM (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY)
* * ESP_LE_AUTH_REQ_SC_MITM_BOND (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY | ESP_LE_AUTH_BOND)
*/
void NimBLESecurity::setAuthenticationMode(esp_ble_auth_req_t auth_req) {
NimBLEDevice::setSecurityAuth((auth_req & BLE_SM_PAIR_AUTHREQ_BOND)>0,
(auth_req & BLE_SM_PAIR_AUTHREQ_MITM)>0,
(auth_req & BLE_SM_PAIR_AUTHREQ_SC)>0);
}
/**
* @brief Set our device IO capability to let end user perform authorization
* either by displaying or entering generated 6-digit pin code or use \"just works\".
* @param [in] iocap The IO capabilites our device has.\n
* Can be set to one of:
* * ESP_IO_CAP_OUT 0
* * ESP_IO_CAP_IO 1
* * ESP_IO_CAP_IN 2
* * ESP_IO_CAP_NONE 3
* * ESP_IO_CAP_KBDISP 4
*/
void NimBLESecurity::setCapability(esp_ble_io_cap_t iocap) {
NimBLEDevice::setSecurityIOCap(iocap);
} // setCapability
/**
* @brief Sets the keys we will distribute during encryption.
* @param [in] init_key A bitmask of the keys we will distribute.\n
* Can be one or more of:
* * ESP_BLE_ENC_KEY_MASK (1 << 0)
* * ESP_BLE_ID_KEY_MASK (1 << 1)
* * ESP_BLE_CSR_KEY_MASK (1 << 2)
* * ESP_BLE_LINK_KEY_MASK (1 << 3)
*/
void NimBLESecurity::setInitEncryptionKey(uint8_t init_key) {
NimBLEDevice::setSecurityInitKey(init_key);
} // setInitEncryptionKey
/**
* @brief Sets the keys we will accept during encryption.
* @param [in] resp_key A bitmask of the keys we will accept.\n
* Can be one or more of:
* * ESP_BLE_ENC_KEY_MASK (1 << 0)
* * ESP_BLE_ID_KEY_MASK (1 << 1)
* * ESP_BLE_CSR_KEY_MASK (1 << 2)
* * ESP_BLE_LINK_KEY_MASK (1 << 3)
*/
void NimBLESecurity::setRespEncryptionKey(uint8_t resp_key) {
NimBLEDevice::setSecurityRespKey(resp_key);
} // setRespEncryptionKey
/**
*@todo Requires implementation
*/
void NimBLESecurity::setKeySize(uint8_t key_size) {
//m_keySize = key_size;
//esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &m_keySize, sizeof(uint8_t));
} //setKeySize
/**
* @brief Sets a static PIN used to authenticate/encrypt the connection.
* @param [in] pin The 6 digit pin code to accept.
*/
void NimBLESecurity::setStaticPIN(uint32_t pin){
//uint32_t passkey = pin;
//esp_ble_gap_set_security_param(ESP_BLE_SM_SET_STATIC_PASSKEY, &passkey, sizeof(uint32_t));
NimBLEDevice::setSecurityPasskey(pin);
setCapability(ESP_IO_CAP_OUT);
setKeySize();
setAuthenticationMode(ESP_LE_AUTH_REQ_SC_ONLY);
setInitEncryptionKey(ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK);
}
/**
* @brief Debug function to display what keys are exchanged by peers
*/
/*
char* BLESecurity::esp_key_type_to_str(esp_ble_key_type_t key_type) {
char* key_str = nullptr;
switch (key_type) {
case ESP_LE_KEY_NONE:
key_str = (char*) "ESP_LE_KEY_NONE";
break;
case ESP_LE_KEY_PENC:
key_str = (char*) "ESP_LE_KEY_PENC";
break;
case ESP_LE_KEY_PID:
key_str = (char*) "ESP_LE_KEY_PID";
break;
case ESP_LE_KEY_PCSRK:
key_str = (char*) "ESP_LE_KEY_PCSRK";
break;
case ESP_LE_KEY_PLK:
key_str = (char*) "ESP_LE_KEY_PLK";
break;
case ESP_LE_KEY_LLK:
key_str = (char*) "ESP_LE_KEY_LLK";
break;
case ESP_LE_KEY_LENC:
key_str = (char*) "ESP_LE_KEY_LENC";
break;
case ESP_LE_KEY_LID:
key_str = (char*) "ESP_LE_KEY_LID";
break;
case ESP_LE_KEY_LCSRK:
key_str = (char*) "ESP_LE_KEY_LCSRK";
break;
default:
key_str = (char*) "INVALID BLE KEY TYPE";
break;
}
return key_str;
} // esp_key_type_to_str
*/
#endif // CONFIG_BT_ENABLED

131
lib/libesp32_div/NimBLE-Arduino/src/NimBLESecurity.h
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@ -1,131 +0,0 @@
/*
* NimBLESecurity.h
*
* Created: on Feb 22 2020
* Author H2zero
*
* Originally:
*
* BLESecurity.h
*
* Created on: Dec 17, 2017
* Author: chegewara
*/
#ifndef COMPONENTS_NIMBLESECURITY_H_
#define COMPONENTS_NIMBLESECURITY_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_gap.h"
#else
#include "nimble/nimble/host/include/host/ble_gap.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include <stdint.h>
#define ESP_LE_AUTH_NO_BOND 0x00 /*!< 0*/ /* relate to BTM_LE_AUTH_NO_BOND in stack/btm_api.h */
#define ESP_LE_AUTH_BOND 0x01 /*!< 1 << 0 */ /* relate to BTM_LE_AUTH_BOND in stack/btm_api.h */
#define ESP_LE_AUTH_REQ_MITM (1 << 2) /*!< 1 << 2 */ /* relate to BTM_LE_AUTH_REQ_MITM in stack/btm_api.h */
#define ESP_LE_AUTH_REQ_BOND_MITM (ESP_LE_AUTH_BOND | ESP_LE_AUTH_REQ_MITM)/*!< 0101*/
#define ESP_LE_AUTH_REQ_SC_ONLY (1 << 3) /*!< 1 << 3 */ /* relate to BTM_LE_AUTH_REQ_SC_ONLY in stack/btm_api.h */
#define ESP_LE_AUTH_REQ_SC_BOND (ESP_LE_AUTH_BOND | ESP_LE_AUTH_REQ_SC_ONLY) /*!< 1001 */ /* relate to BTM_LE_AUTH_REQ_SC_BOND in stack/btm_api.h */
#define ESP_LE_AUTH_REQ_SC_MITM (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY) /*!< 1100 */ /* relate to BTM_LE_AUTH_REQ_SC_MITM in stack/btm_api.h */
#define ESP_LE_AUTH_REQ_SC_MITM_BOND (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY | ESP_LE_AUTH_BOND) /*!< 1101 */ /* relate to BTM_LE_AUTH_REQ_SC_MITM_BOND in stack/btm_api.h */
#define ESP_IO_CAP_OUT 0 /*!< DisplayOnly */ /* relate to BTM_IO_CAP_OUT in stack/btm_api.h */
#define ESP_IO_CAP_IO 1 /*!< DisplayYesNo */ /* relate to BTM_IO_CAP_IO in stack/btm_api.h */
#define ESP_IO_CAP_IN 2 /*!< KeyboardOnly */ /* relate to BTM_IO_CAP_IN in stack/btm_api.h */
#define ESP_IO_CAP_NONE 3 /*!< NoInputNoOutput */ /* relate to BTM_IO_CAP_NONE in stack/btm_api.h */
#define ESP_IO_CAP_KBDISP 4 /*!< Keyboard display */ /* relate to BTM_IO_CAP_KBDISP in stack/btm_api.h */
/// Used to exchange the encryption key in the init key & response key
#define ESP_BLE_ENC_KEY_MASK (1 << 0) /* relate to BTM_BLE_ENC_KEY_MASK in stack/btm_api.h */
/// Used to exchange the IRK key in the init key & response key
#define ESP_BLE_ID_KEY_MASK (1 << 1) /* relate to BTM_BLE_ID_KEY_MASK in stack/btm_api.h */
/// Used to exchange the CSRK key in the init key & response key
#define ESP_BLE_CSR_KEY_MASK (1 << 2) /* relate to BTM_BLE_CSR_KEY_MASK in stack/btm_api.h */
/// Used to exchange the link key(this key just used in the BLE & BR/EDR coexist mode) in the init key & response key
#define ESP_BLE_LINK_KEY_MASK (1 << 3) /* relate to BTM_BLE_LINK_KEY_MASK in stack/btm_api.h */
typedef uint8_t esp_ble_auth_req_t; /*!< combination of the above bit pattern */
typedef uint8_t esp_ble_io_cap_t; /*!< combination of the io capability */
/**
* @brief A class to handle BLE security operations.
* <b>Deprecated - provided for backward compatibility only.</b>
* @deprecated Use the security methods provided in NimBLEDevice instead.
*/
class NimBLESecurity {
public:
NimBLESecurity();
virtual ~NimBLESecurity();
void setAuthenticationMode(esp_ble_auth_req_t auth_req);
void setCapability(esp_ble_io_cap_t iocap);
void setInitEncryptionKey(uint8_t init_key);
void setRespEncryptionKey(uint8_t resp_key);
void setKeySize(uint8_t key_size = 16);
void setStaticPIN(uint32_t pin);
//static char* esp_key_type_to_str(esp_ble_key_type_t key_type);
/*
private:
esp_ble_auth_req_t m_authReq;
esp_ble_io_cap_t m_iocap;
uint8_t m_initKey;
uint8_t m_respKey;
uint8_t m_keySize;
*/
}; // BLESecurity
/**
* @brief Callbacks to handle GAP events related to authorization.
* <b>Deprecated - provided for backward compatibility only.</b>
* @deprecated Use the callbacks provided in NimBLEClientCallbacks and NimBLEServerCallbacks instead.
*/
class NimBLESecurityCallbacks {
public:
virtual ~NimBLESecurityCallbacks() {};
/**
* @brief Its request from peer device to input authentication pin code displayed on peer device.
* It requires that our device is capable to input 6-digits code by end user
* @return Return 6-digits integer value from input device
*/
virtual uint32_t onPassKeyRequest() = 0;
/**
* @brief Provide us 6-digits code to perform authentication.
* It requires that our device is capable to display this code to end user
* @param [in] pass_key The PIN provided by the peer.
*/
virtual void onPassKeyNotify(uint32_t pass_key) = 0;
/**
* @brief Here we can make decision if we want to let negotiate authorization with peer device or not
* @return Return true if we accept this peer device request
*/
virtual bool onSecurityRequest() = 0 ;
/**
* @brief Provides us information when authentication process is completed
*/
virtual void onAuthenticationComplete(ble_gap_conn_desc*) = 0;
/**
* @brief Called when using numeric comparison for authentication.
* @param [in] pin The PIN to compare.
* @return True to accept and pair.
*/
virtual bool onConfirmPIN(uint32_t pin) = 0;
}; // BLESecurityCallbacks
#endif // CONFIG_BT_ENABLED
#endif // COMPONENTS_NIMBLESECURITY_H_

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lib/libesp32_div/NimBLE-Arduino/src/NimBLEServer.cpp
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/*
* NimBLEServer.cpp
*
* Created: on March 2, 2020
* Author H2zero
*
* Originally:
*
* BLEServer.cpp
*
* Created on: Apr 16, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEServer.h"
#include "NimBLEDevice.h"
#include "NimBLELog.h"
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "services/gap/ble_svc_gap.h"
#include "services/gatt/ble_svc_gatt.h"
#else
#include "nimble/nimble/host/services/gap/include/services/gap/ble_svc_gap.h"
#include "nimble/nimble/host/services/gatt/include/services/gatt/ble_svc_gatt.h"
#endif
static const char* LOG_TAG = "NimBLEServer";
static NimBLEServerCallbacks defaultCallbacks;
/**
* @brief Construct a %BLE Server
*
* This class is not designed to be individually instantiated. Instead one should create a server by asking
* the NimBLEDevice class.
*/
NimBLEServer::NimBLEServer() {
memset(m_indWait, BLE_HS_CONN_HANDLE_NONE, sizeof(m_indWait));
// m_svcChgChrHdl = 0xffff; // Future Use
m_pServerCallbacks = &defaultCallbacks;
m_gattsStarted = false;
#if !CONFIG_BT_NIMBLE_EXT_ADV
m_advertiseOnDisconnect = true;
#endif
m_svcChanged = false;
m_deleteCallbacks = true;
} // NimBLEServer
/**
* @brief Destructor: frees all resources / attributes created.
*/
NimBLEServer::~NimBLEServer() {
for(auto &it : m_svcVec) {
delete it;
}
if(m_deleteCallbacks && m_pServerCallbacks != &defaultCallbacks) {
delete m_pServerCallbacks;
}
}
/**
* @brief Create a %BLE Service.
* @param [in] uuid The UUID of the new service.
* @return A reference to the new service object.
*/
NimBLEService* NimBLEServer::createService(const char* uuid) {
return createService(NimBLEUUID(uuid));
} // createService
/**
* @brief Create a %BLE Service.
* @param [in] uuid The UUID of the new service.
* @return A reference to the new service object.
*/
NimBLEService* NimBLEServer::createService(const NimBLEUUID &uuid) {
NIMBLE_LOGD(LOG_TAG, ">> createService - %s", uuid.toString().c_str());
// Check that a service with the supplied UUID does not already exist.
if(getServiceByUUID(uuid) != nullptr) {
NIMBLE_LOGW(LOG_TAG, "Warning creating a duplicate service UUID: %s",
std::string(uuid).c_str());
}
NimBLEService* pService = new NimBLEService(uuid);
m_svcVec.push_back(pService);
serviceChanged();
NIMBLE_LOGD(LOG_TAG, "<< createService");
return pService;
} // createService
/**
* @brief Get a %BLE Service by its UUID
* @param [in] uuid The UUID of the service.
* @param instanceId The index of the service to return (used when multiple services have the same UUID).
* @return A pointer to the service object or nullptr if not found.
*/
NimBLEService* NimBLEServer::getServiceByUUID(const char* uuid, uint16_t instanceId) {
return getServiceByUUID(NimBLEUUID(uuid), instanceId);
} // getServiceByUUID
/**
* @brief Get a %BLE Service by its UUID
* @param [in] uuid The UUID of the service.
* @param instanceId The index of the service to return (used when multiple services have the same UUID).
* @return A pointer to the service object or nullptr if not found.
*/
NimBLEService* NimBLEServer::getServiceByUUID(const NimBLEUUID &uuid, uint16_t instanceId) {
uint16_t position = 0;
for (auto &it : m_svcVec) {
if (it->getUUID() == uuid) {
if (position == instanceId){
return it;
}
position++;
}
}
return nullptr;
} // getServiceByUUID
/**
* @brief Get a %BLE Service by its handle
* @param handle The handle of the service.
* @return A pointer to the service object or nullptr if not found.
*/
NimBLEService *NimBLEServer::getServiceByHandle(uint16_t handle) {
for (auto &it : m_svcVec) {
if (it->getHandle() == handle) {
return it;
}
}
return nullptr;
}
#if CONFIG_BT_NIMBLE_EXT_ADV
/**
* @brief Retrieve the advertising object that can be used to advertise the existence of the server.
* @return An advertising object.
*/
NimBLEExtAdvertising* NimBLEServer::getAdvertising() {
return NimBLEDevice::getAdvertising();
} // getAdvertising
#endif
#if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
/**
* @brief Retrieve the advertising object that can be used to advertise the existence of the server.
* @return An advertising object.
*/
NimBLEAdvertising* NimBLEServer::getAdvertising() {
return NimBLEDevice::getAdvertising();
} // getAdvertising
#endif
/**
* @brief Sends a service changed notification and resets the GATT server.
*/
void NimBLEServer::serviceChanged() {
if(m_gattsStarted) {
m_svcChanged = true;
ble_svc_gatt_changed(0x0001, 0xffff);
resetGATT();
}
}
/**
* @brief Start the GATT server. Required to be called after setup of all
* services and characteristics / descriptors for the NimBLE host to register them.
*/
void NimBLEServer::start() {
if(m_gattsStarted) {
NIMBLE_LOGW(LOG_TAG, "Gatt server already started");
return;
}
int rc = ble_gatts_start();
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gatts_start; rc=%d, %s", rc,
NimBLEUtils::returnCodeToString(rc));
abort();
}
#if CONFIG_NIMBLE_CPP_LOG_LEVEL >= 4
ble_gatts_show_local();
#endif
/*** Future use ***
* TODO: implement service changed handling
ble_uuid16_t svc = {BLE_UUID_TYPE_16, 0x1801};
ble_uuid16_t chr = {BLE_UUID_TYPE_16, 0x2a05};
rc = ble_gatts_find_chr(&svc.u, &chr.u, NULL, &m_svcChgChrHdl);
if(rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gatts_find_chr: rc=%d, %s", rc,
NimBLEUtils::returnCodeToString(rc));
abort();
}
NIMBLE_LOGI(LOG_TAG, "Service changed characterisic handle: %d", m_svcChgChrHdl);
*/
// Get the assigned service handles and build a vector of characteristics
// with Notify / Indicate capabilities for event handling
for(auto &svc : m_svcVec) {
if(svc->m_removed == 0) {
rc = ble_gatts_find_svc(&svc->getUUID().getNative()->u, &svc->m_handle);
if(rc != 0) {
abort();
}
}
for(auto &chr : svc->m_chrVec) {
// if Notify / Indicate is enabled but we didn't create the descriptor
// we do it now.
if((chr->m_properties & BLE_GATT_CHR_F_INDICATE) ||
(chr->m_properties & BLE_GATT_CHR_F_NOTIFY)) {
m_notifyChrVec.push_back(chr);
}
}
}
m_gattsStarted = true;
} // start
/**
* @brief Disconnect the specified client with optional reason.
* @param [in] connId Connection Id of the client to disconnect.
* @param [in] reason code for disconnecting.
* @return NimBLE host return code.
*/
int NimBLEServer::disconnect(uint16_t connId, uint8_t reason) {
NIMBLE_LOGD(LOG_TAG, ">> disconnect()");
int rc = ble_gap_terminate(connId, reason);
if(rc != 0){
NIMBLE_LOGE(LOG_TAG, "ble_gap_terminate failed: rc=%d %s", rc,
NimBLEUtils::returnCodeToString(rc));
}
NIMBLE_LOGD(LOG_TAG, "<< disconnect()");
return rc;
} // disconnect
#if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
/**
* @brief Set the server to automatically start advertising when a client disconnects.
* @param [in] aod true == advertise, false == don't advertise.
*/
void NimBLEServer::advertiseOnDisconnect(bool aod) {
m_advertiseOnDisconnect = aod;
} // advertiseOnDisconnect
#endif
/**
* @brief Return the number of connected clients.
* @return The number of connected clients.
*/
size_t NimBLEServer::getConnectedCount() {
return m_connectedPeersVec.size();
} // getConnectedCount
/**
* @brief Get the vector of the connected client ID's.
*/
std::vector<uint16_t> NimBLEServer::getPeerDevices() {
return m_connectedPeersVec;
} // getPeerDevices
/**
* @brief Get the connection information of a connected peer by vector index.
* @param [in] index The vector index of the peer.
*/
NimBLEConnInfo NimBLEServer::getPeerInfo(size_t index) {
if (index >= m_connectedPeersVec.size()) {
NIMBLE_LOGE(LOG_TAG, "No peer at index %u", index);
return NimBLEConnInfo();
}
return getPeerIDInfo(m_connectedPeersVec[index]);
} // getPeerInfo
/**
* @brief Get the connection information of a connected peer by address.
* @param [in] address The address of the peer.
*/
NimBLEConnInfo NimBLEServer::getPeerInfo(const NimBLEAddress& address) {
ble_addr_t peerAddr;
memcpy(&peerAddr.val, address.getNative(),6);
peerAddr.type = address.getType();
NimBLEConnInfo peerInfo;
int rc = ble_gap_conn_find_by_addr(&peerAddr, &peerInfo.m_desc);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Peer info not found");
}
return peerInfo;
} // getPeerInfo
/**
* @brief Get the connection information of a connected peer by connection ID.
* @param [in] id The connection id of the peer.
*/
NimBLEConnInfo NimBLEServer::getPeerIDInfo(uint16_t id) {
NimBLEConnInfo peerInfo;
int rc = ble_gap_conn_find(id, &peerInfo.m_desc);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Peer info not found");
}
return peerInfo;
} // getPeerIDInfo
/**
* @brief Handle a GATT Server Event.
*
* @param [in] event
* @param [in] gatts_if
* @param [in] param
*
*/
/*STATIC*/
int NimBLEServer::handleGapEvent(struct ble_gap_event *event, void *arg) {
NimBLEServer* server = NimBLEDevice::getServer();
NIMBLE_LOGD(LOG_TAG, ">> handleGapEvent: %s",
NimBLEUtils::gapEventToString(event->type));
int rc = 0;
struct ble_gap_conn_desc desc;
switch(event->type) {
case BLE_GAP_EVENT_CONNECT: {
if (event->connect.status != 0) {
/* Connection failed; resume advertising */
NIMBLE_LOGE(LOG_TAG, "Connection failed");
#if !CONFIG_BT_NIMBLE_EXT_ADV
NimBLEDevice::startAdvertising();
#endif
}
else {
server->m_connectedPeersVec.push_back(event->connect.conn_handle);
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
if (rc != 0) {
return 0;
}
server->m_pServerCallbacks->onConnect(server);
server->m_pServerCallbacks->onConnect(server, &desc);
}
return 0;
} // BLE_GAP_EVENT_CONNECT
case BLE_GAP_EVENT_DISCONNECT: {
// If Host reset tell the device now before returning to prevent
// any errors caused by calling host functions before resync.
switch(event->disconnect.reason) {
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGC(LOG_TAG, "Disconnect - host reset, rc=%d", event->disconnect.reason);
NimBLEDevice::onReset(event->disconnect.reason);
break;
default:
break;
}
server->m_connectedPeersVec.erase(std::remove(server->m_connectedPeersVec.begin(),
server->m_connectedPeersVec.end(),
event->disconnect.conn.conn_handle),
server->m_connectedPeersVec.end());
if(server->m_svcChanged) {
server->resetGATT();
}
server->m_pServerCallbacks->onDisconnect(server);
server->m_pServerCallbacks->onDisconnect(server, &event->disconnect.conn);
#if !CONFIG_BT_NIMBLE_EXT_ADV
if(server->m_advertiseOnDisconnect) {
server->startAdvertising();
}
#endif
return 0;
} // BLE_GAP_EVENT_DISCONNECT
case BLE_GAP_EVENT_SUBSCRIBE: {
NIMBLE_LOGI(LOG_TAG, "subscribe event; attr_handle=%d, subscribed: %s",
event->subscribe.attr_handle,
(event->subscribe.cur_notify ? "true":"false"));
for(auto &it : server->m_notifyChrVec) {
if(it->getHandle() == event->subscribe.attr_handle) {
if((it->getProperties() & BLE_GATT_CHR_F_READ_AUTHEN) ||
(it->getProperties() & BLE_GATT_CHR_F_READ_AUTHOR) ||
(it->getProperties() & BLE_GATT_CHR_F_READ_ENC))
{
rc = ble_gap_conn_find(event->subscribe.conn_handle, &desc);
if (rc != 0) {
break;
}
if(!desc.sec_state.encrypted) {
NimBLEDevice::startSecurity(event->subscribe.conn_handle);
}
}
it->setSubscribe(event);
break;
}
}
return 0;
} // BLE_GAP_EVENT_SUBSCRIBE
case BLE_GAP_EVENT_MTU: {
NIMBLE_LOGI(LOG_TAG, "mtu update event; conn_handle=%d mtu=%d",
event->mtu.conn_handle,
event->mtu.value);
rc = ble_gap_conn_find(event->mtu.conn_handle, &desc);
if (rc != 0) {
return 0;
}
server->m_pServerCallbacks->onMTUChange(event->mtu.value, &desc);
return 0;
} // BLE_GAP_EVENT_MTU
case BLE_GAP_EVENT_NOTIFY_TX: {
NimBLECharacteristic *pChar = nullptr;
for(auto &it : server->m_notifyChrVec) {
if(it->getHandle() == event->notify_tx.attr_handle) {
pChar = it;
}
}
if(pChar == nullptr) {
return 0;
}
NimBLECharacteristicCallbacks::Status statusRC;
if(event->notify_tx.indication) {
if(event->notify_tx.status != 0) {
if(event->notify_tx.status == BLE_HS_EDONE) {
statusRC = NimBLECharacteristicCallbacks::Status::SUCCESS_INDICATE;
} else if(rc == BLE_HS_ETIMEOUT) {
statusRC = NimBLECharacteristicCallbacks::Status::ERROR_INDICATE_TIMEOUT;
} else {
statusRC = NimBLECharacteristicCallbacks::Status::ERROR_INDICATE_FAILURE;
}
} else {
return 0;
}
server->clearIndicateWait(event->notify_tx.conn_handle);
} else {
if(event->notify_tx.status == 0) {
statusRC = NimBLECharacteristicCallbacks::Status::SUCCESS_NOTIFY;
} else {
statusRC = NimBLECharacteristicCallbacks::Status::ERROR_GATT;
}
}
pChar->m_pCallbacks->onStatus(pChar, statusRC, event->notify_tx.status);
return 0;
} // BLE_GAP_EVENT_NOTIFY_TX
case BLE_GAP_EVENT_ADV_COMPLETE:
#if CONFIG_BT_NIMBLE_EXT_ADV
case BLE_GAP_EVENT_SCAN_REQ_RCVD:
return NimBLEExtAdvertising::handleGapEvent(event, arg);
#else
return NimBLEAdvertising::handleGapEvent(event, arg);
#endif
// BLE_GAP_EVENT_ADV_COMPLETE | BLE_GAP_EVENT_SCAN_REQ_RCVD
case BLE_GAP_EVENT_CONN_UPDATE: {
NIMBLE_LOGD(LOG_TAG, "Connection parameters updated.");
return 0;
} // BLE_GAP_EVENT_CONN_UPDATE
case BLE_GAP_EVENT_REPEAT_PAIRING: {
/* We already have a bond with the peer, but it is attempting to
* establish a new secure link. This app sacrifices security for
* convenience: just throw away the old bond and accept the new link.
*/
/* Delete the old bond. */
rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
if (rc != 0){
return BLE_GAP_REPEAT_PAIRING_IGNORE;
}
ble_store_util_delete_peer(&desc.peer_id_addr);
/* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should
* continue with the pairing operation.
*/
return BLE_GAP_REPEAT_PAIRING_RETRY;
} // BLE_GAP_EVENT_REPEAT_PAIRING
case BLE_GAP_EVENT_ENC_CHANGE: {
rc = ble_gap_conn_find(event->enc_change.conn_handle, &desc);
if(rc != 0) {
return BLE_ATT_ERR_INVALID_HANDLE;
}
// Compatibility only - Do not use, should be removed the in future
if(NimBLEDevice::m_securityCallbacks != nullptr) {
NimBLEDevice::m_securityCallbacks->onAuthenticationComplete(&desc);
/////////////////////////////////////////////
} else {
server->m_pServerCallbacks->onAuthenticationComplete(&desc);
}
return 0;
} // BLE_GAP_EVENT_ENC_CHANGE
case BLE_GAP_EVENT_PASSKEY_ACTION: {
struct ble_sm_io pkey = {0,0};
if (event->passkey.params.action == BLE_SM_IOACT_DISP) {
pkey.action = event->passkey.params.action;
// backward compatibility
pkey.passkey = NimBLEDevice::getSecurityPasskey(); // This is the passkey to be entered on peer
// if the (static)passkey is the default, check the callback for custom value
// both values default to the same.
if(pkey.passkey == 123456) {
pkey.passkey = server->m_pServerCallbacks->onPassKeyRequest();
}
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
NIMBLE_LOGD(LOG_TAG, "BLE_SM_IOACT_DISP; ble_sm_inject_io result: %d", rc);
} else if (event->passkey.params.action == BLE_SM_IOACT_NUMCMP) {
NIMBLE_LOGD(LOG_TAG, "Passkey on device's display: %" PRIu32, event->passkey.params.numcmp);
pkey.action = event->passkey.params.action;
// Compatibility only - Do not use, should be removed the in future
if(NimBLEDevice::m_securityCallbacks != nullptr) {
pkey.numcmp_accept = NimBLEDevice::m_securityCallbacks->onConfirmPIN(event->passkey.params.numcmp);
/////////////////////////////////////////////
} else {
pkey.numcmp_accept = server->m_pServerCallbacks->onConfirmPIN(event->passkey.params.numcmp);
}
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
NIMBLE_LOGD(LOG_TAG, "BLE_SM_IOACT_NUMCMP; ble_sm_inject_io result: %d", rc);
//TODO: Handle out of band pairing
} else if (event->passkey.params.action == BLE_SM_IOACT_OOB) {
static uint8_t tem_oob[16] = {0};
pkey.action = event->passkey.params.action;
for (int i = 0; i < 16; i++) {
pkey.oob[i] = tem_oob[i];
}
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
NIMBLE_LOGD(LOG_TAG, "BLE_SM_IOACT_OOB; ble_sm_inject_io result: %d", rc);
//////////////////////////////////
} else if (event->passkey.params.action == BLE_SM_IOACT_INPUT) {
NIMBLE_LOGD(LOG_TAG, "Enter the passkey");
pkey.action = event->passkey.params.action;
// Compatibility only - Do not use, should be removed the in future
if(NimBLEDevice::m_securityCallbacks != nullptr) {
pkey.passkey = NimBLEDevice::m_securityCallbacks->onPassKeyRequest();
/////////////////////////////////////////////
} else {
pkey.passkey = server->m_pServerCallbacks->onPassKeyRequest();
}
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
NIMBLE_LOGD(LOG_TAG, "BLE_SM_IOACT_INPUT; ble_sm_inject_io result: %d", rc);
} else if (event->passkey.params.action == BLE_SM_IOACT_NONE) {
NIMBLE_LOGD(LOG_TAG, "No passkey action required");
}
NIMBLE_LOGD(LOG_TAG, "<< handleGATTServerEvent");
return 0;
} // BLE_GAP_EVENT_PASSKEY_ACTION
default:
break;
}
NIMBLE_LOGD(LOG_TAG, "<< handleGATTServerEvent");
return 0;
} // handleGapEvent
/**
* @brief Set the server callbacks.
*
* As a %BLE server operates, it will generate server level events such as a new client connecting or a previous client
* disconnecting. This function can be called to register a callback handler that will be invoked when these
* events are detected.
*
* @param [in] pCallbacks The callbacks to be invoked.
* @param [in] deleteCallbacks if true callback class will be deleted when server is destructed.
*/
void NimBLEServer::setCallbacks(NimBLEServerCallbacks* pCallbacks, bool deleteCallbacks) {
if (pCallbacks != nullptr){
m_pServerCallbacks = pCallbacks;
m_deleteCallbacks = deleteCallbacks;
} else {
m_pServerCallbacks = &defaultCallbacks;
}
} // setCallbacks
/**
* @brief Remove a service from the server.
*
* @details Immediately removes access to the service by clients, sends a service changed indication,
* and removes the service (if applicable) from the advertisements.
* The service is not deleted unless the deleteSvc parameter is true, otherwise the service remains
* available and can be re-added in the future. If desired a removed but not deleted service can
* be deleted later by calling this method with deleteSvc set to true.
*
* @note The service will not be removed from the database until all open connections are closed
* as it requires resetting the GATT server. In the interim the service will have it's visibility disabled.
*
* @note Advertising will need to be restarted by the user after calling this as we must stop
* advertising in order to remove the service.
*
* @param [in] service The service object to remove.
* @param [in] deleteSvc true if the service should be deleted.
*/
void NimBLEServer::removeService(NimBLEService* service, bool deleteSvc) {
// Check if the service was already removed and if so check if this
// is being called to delete the object and do so if requested.
// Otherwise, ignore the call and return.
if(service->m_removed > 0) {
if(deleteSvc) {
for(auto it = m_svcVec.begin(); it != m_svcVec.end(); ++it) {
if ((*it) == service) {
delete *it;
m_svcVec.erase(it);
break;
}
}
}
return;
}
int rc = ble_gatts_svc_set_visibility(service->getHandle(), 0);
if(rc !=0) {
return;
}
service->m_removed = deleteSvc ? NIMBLE_ATT_REMOVE_DELETE : NIMBLE_ATT_REMOVE_HIDE;
serviceChanged();
#if !CONFIG_BT_NIMBLE_EXT_ADV
NimBLEDevice::getAdvertising()->removeServiceUUID(service->getUUID());
#endif
}
/**
* @brief Adds a service which was either already created but removed from availability,\n
* or created and later added to services list.
* @param [in] service The service object to add.
* @note If it is desired to advertise the service it must be added by
* calling NimBLEAdvertising::addServiceUUID.
*/
void NimBLEServer::addService(NimBLEService* service) {
// Check that a service with the supplied UUID does not already exist.
if(getServiceByUUID(service->getUUID()) != nullptr) {
NIMBLE_LOGW(LOG_TAG, "Warning creating a duplicate service UUID: %s",
std::string(service->getUUID()).c_str());
}
// If adding a service that was not removed add it and return.
// Else reset GATT and send service changed notification.
if(service->m_removed == 0) {
m_svcVec.push_back(service);
return;
}
service->m_removed = 0;
serviceChanged();
}
/**
* @brief Resets the GATT server, used when services are added/removed after initialization.
*/
void NimBLEServer::resetGATT() {
if(getConnectedCount() > 0) {
return;
}
NimBLEDevice::stopAdvertising();
ble_gatts_reset();
ble_svc_gap_init();
ble_svc_gatt_init();
for(auto it = m_svcVec.begin(); it != m_svcVec.end(); ) {
if ((*it)->m_removed > 0) {
if ((*it)->m_removed == NIMBLE_ATT_REMOVE_DELETE) {
delete *it;
it = m_svcVec.erase(it);
} else {
++it;
}
continue;
}
(*it)->start();
++it;
}
m_svcChanged = false;
m_gattsStarted = false;
}
#if CONFIG_BT_NIMBLE_EXT_ADV
/**
* @brief Start advertising.
* @param [in] inst_id The extended advertisement instance ID to start.
* @param [in] duration How long to advertise for in milliseconds, 0 = forever (default).
* @param [in] max_events Maximum number of advertisement events to send, 0 = no limit (default).
* @return True if advertising started successfully.
* @details Start the server advertising its existence. This is a convenience function and is equivalent to
* retrieving the advertising object and invoking start upon it.
*/
bool NimBLEServer::startAdvertising(uint8_t inst_id,
int duration,
int max_events) {
return getAdvertising()->start(inst_id, duration, max_events);
} // startAdvertising
/**
* @brief Convenience function to stop advertising a data set.
* @param [in] inst_id The extended advertisement instance ID to stop advertising.
* @return True if advertising stopped successfully.
*/
bool NimBLEServer::stopAdvertising(uint8_t inst_id) {
return getAdvertising()->stop(inst_id);
} // stopAdvertising
#endif
#if !CONFIG_BT_NIMBLE_EXT_ADV|| defined(_DOXYGEN_)
/**
* @brief Start advertising.
* @return True if advertising started successfully.
* @details Start the server advertising its existence. This is a convenience function and is equivalent to
* retrieving the advertising object and invoking start upon it.
*/
bool NimBLEServer::startAdvertising() {
return getAdvertising()->start();
} // startAdvertising
#endif
/**
* @brief Stop advertising.
* @return True if advertising stopped successfully.
*/
bool NimBLEServer::stopAdvertising() {
return getAdvertising()->stop();
} // stopAdvertising
/**
* @brief Get the MTU of the client.
* @returns The client MTU or 0 if not found/connected.
*/
uint16_t NimBLEServer::getPeerMTU(uint16_t conn_id) {
return ble_att_mtu(conn_id);
} //getPeerMTU
/**
* @brief Request an Update the connection parameters:
* * Can only be used after a connection has been established.
* @param [in] conn_handle The connection handle of the peer to send the request to.
* @param [in] minInterval The minimum connection interval in 1.25ms units.
* @param [in] maxInterval The maximum connection interval in 1.25ms units.
* @param [in] latency The number of packets allowed to skip (extends max interval).
* @param [in] timeout The timeout time in 10ms units before disconnecting.
*/
void NimBLEServer::updateConnParams(uint16_t conn_handle,
uint16_t minInterval, uint16_t maxInterval,
uint16_t latency, uint16_t timeout)
{
ble_gap_upd_params params;
params.latency = latency;
params.itvl_max = maxInterval; // max_int = 0x20*1.25ms = 40ms
params.itvl_min = minInterval; // min_int = 0x10*1.25ms = 20ms
params.supervision_timeout = timeout; // timeout = 400*10ms = 4000ms
params.min_ce_len = BLE_GAP_INITIAL_CONN_MIN_CE_LEN; // Minimum length of connection event in 0.625ms units
params.max_ce_len = BLE_GAP_INITIAL_CONN_MAX_CE_LEN; // Maximum length of connection event in 0.625ms units
int rc = ble_gap_update_params(conn_handle, &params);
if(rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Update params error: %d, %s", rc, NimBLEUtils::returnCodeToString(rc));
}
} // updateConnParams
/**
* @brief Request an update of the data packet length.
* * Can only be used after a connection has been established.
* @details Sends a data length update request to the peer.
* The Data Length Extension (DLE) allows to increase the Data Channel Payload from 27 bytes to up to 251 bytes.
* The peer needs to support the Bluetooth 4.2 specifications, to be capable of DLE.
* @param [in] conn_handle The connection handle of the peer to send the request to.
* @param [in] tx_octets The preferred number of payload octets to use (Range 0x001B-0x00FB).
*/
void NimBLEServer::setDataLen(uint16_t conn_handle, uint16_t tx_octets) {
#if defined(CONFIG_NIMBLE_CPP_IDF) && !defined(ESP_IDF_VERSION) || \
(ESP_IDF_VERSION_MAJOR * 100 + ESP_IDF_VERSION_MINOR * 10 + ESP_IDF_VERSION_PATCH) < 432
return;
#else
uint16_t tx_time = (tx_octets + 14) * 8;
int rc = ble_gap_set_data_len(conn_handle, tx_octets, tx_time);
if(rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Set data length error: %d, %s", rc, NimBLEUtils::returnCodeToString(rc));
}
#endif
} // setDataLen
bool NimBLEServer::setIndicateWait(uint16_t conn_handle) {
for(auto i = 0; i < CONFIG_BT_NIMBLE_MAX_CONNECTIONS; i++) {
if(m_indWait[i] == conn_handle) {
return false;
}
}
return true;
}
void NimBLEServer::clearIndicateWait(uint16_t conn_handle) {
for(auto i = 0; i < CONFIG_BT_NIMBLE_MAX_CONNECTIONS; i++) {
if(m_indWait[i] == conn_handle) {
m_indWait[i] = BLE_HS_CONN_HANDLE_NONE;
return;
}
}
}
/** Default callback handlers */
void NimBLEServerCallbacks::onConnect(NimBLEServer* pServer) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onConnect(): Default");
} // onConnect
void NimBLEServerCallbacks::onConnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onConnect(): Default");
} // onConnect
void NimBLEServerCallbacks::onDisconnect(NimBLEServer* pServer) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onDisconnect(): Default");
} // onDisconnect
void NimBLEServerCallbacks::onDisconnect(NimBLEServer* pServer, ble_gap_conn_desc* desc) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onDisconnect(): Default");
} // onDisconnect
void NimBLEServerCallbacks::onMTUChange(uint16_t MTU, ble_gap_conn_desc* desc) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onMTUChange(): Default");
} // onMTUChange
uint32_t NimBLEServerCallbacks::onPassKeyRequest(){
NIMBLE_LOGD("NimBLEServerCallbacks", "onPassKeyRequest: default: 123456");
return 123456;
}
/*
void NimBLEServerCallbacks::onPassKeyNotify(uint32_t pass_key){
NIMBLE_LOGD("NimBLEServerCallbacks", "onPassKeyNotify: default: %d", pass_key);
}
bool NimBLEServerCallbacks::onSecurityRequest(){
NIMBLE_LOGD("NimBLEServerCallbacks", "onSecurityRequest: default: true");
return true;
}
*/
void NimBLEServerCallbacks::onAuthenticationComplete(ble_gap_conn_desc*){
NIMBLE_LOGD("NimBLEServerCallbacks", "onAuthenticationComplete: default");
}
bool NimBLEServerCallbacks::onConfirmPIN(uint32_t pin){
NIMBLE_LOGD("NimBLEServerCallbacks", "onConfirmPIN: default: true");
return true;
}
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

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/*
* NimBLEServer.h
*
* Created: on March 2, 2020
* Author H2zero
*
* Originally:
*
* BLEServer.h
*
* Created on: Apr 16, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLESERVER_H_
#define MAIN_NIMBLESERVER_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#define NIMBLE_ATT_REMOVE_HIDE 1
#define NIMBLE_ATT_REMOVE_DELETE 2
#define onMtuChanged onMTUChange
#include "NimBLEUtils.h"
#include "NimBLEAddress.h"
#if CONFIG_BT_NIMBLE_EXT_ADV
#include "NimBLEExtAdvertising.h"
#else
#include "NimBLEAdvertising.h"
#endif
#include "NimBLEService.h"
#include "NimBLESecurity.h"
#include "NimBLEConnInfo.h"
class NimBLEService;
class NimBLECharacteristic;
class NimBLEServerCallbacks;
/**
* @brief The model of a %BLE server.
*/
class NimBLEServer {
public:
size_t getConnectedCount();
NimBLEService* createService(const char* uuid);
NimBLEService* createService(const NimBLEUUID &uuid);
void removeService(NimBLEService* service, bool deleteSvc = false);
void addService(NimBLEService* service);
void setCallbacks(NimBLEServerCallbacks* pCallbacks,
bool deleteCallbacks = true);
#if CONFIG_BT_NIMBLE_EXT_ADV
NimBLEExtAdvertising* getAdvertising();
bool startAdvertising(uint8_t inst_id,
int duration = 0,
int max_events = 0);
bool stopAdvertising(uint8_t inst_id);
#endif
#if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
NimBLEAdvertising* getAdvertising();
bool startAdvertising();
#endif
bool stopAdvertising();
void start();
NimBLEService* getServiceByUUID(const char* uuid, uint16_t instanceId = 0);
NimBLEService* getServiceByUUID(const NimBLEUUID &uuid, uint16_t instanceId = 0);
NimBLEService* getServiceByHandle(uint16_t handle);
int disconnect(uint16_t connID,
uint8_t reason = BLE_ERR_REM_USER_CONN_TERM);
void updateConnParams(uint16_t conn_handle,
uint16_t minInterval, uint16_t maxInterval,
uint16_t latency, uint16_t timeout);
void setDataLen(uint16_t conn_handle, uint16_t tx_octets);
uint16_t getPeerMTU(uint16_t conn_id);
std::vector<uint16_t> getPeerDevices();
NimBLEConnInfo getPeerInfo(size_t index);
NimBLEConnInfo getPeerInfo(const NimBLEAddress& address);
NimBLEConnInfo getPeerIDInfo(uint16_t id);
#if !CONFIG_BT_NIMBLE_EXT_ADV || defined(_DOXYGEN_)
void advertiseOnDisconnect(bool);
#endif
private:
NimBLEServer();
~NimBLEServer();
friend class NimBLECharacteristic;
friend class NimBLEService;
friend class NimBLEDevice;
friend class NimBLEAdvertising;
#if CONFIG_BT_NIMBLE_EXT_ADV
friend class NimBLEExtAdvertising;
friend class NimBLEExtAdvertisementData;
#endif
bool m_gattsStarted;
#if !CONFIG_BT_NIMBLE_EXT_ADV
bool m_advertiseOnDisconnect;
#endif
bool m_svcChanged;
NimBLEServerCallbacks* m_pServerCallbacks;
bool m_deleteCallbacks;
uint16_t m_indWait[CONFIG_BT_NIMBLE_MAX_CONNECTIONS];
std::vector<uint16_t> m_connectedPeersVec;
// uint16_t m_svcChgChrHdl; // Future use
std::vector<NimBLEService*> m_svcVec;
std::vector<NimBLECharacteristic*> m_notifyChrVec;
static int handleGapEvent(struct ble_gap_event *event, void *arg);
void serviceChanged();
void resetGATT();
bool setIndicateWait(uint16_t conn_handle);
void clearIndicateWait(uint16_t conn_handle);
}; // NimBLEServer
/**
* @brief Callbacks associated with the operation of a %BLE server.
*/
class NimBLEServerCallbacks {
public:
virtual ~NimBLEServerCallbacks() {};
/**
* @brief Handle a client connection.
* This is called when a client connects.
* @param [in] pServer A pointer to the %BLE server that received the client connection.
*/
virtual void onConnect(NimBLEServer* pServer);
/**
* @brief Handle a client connection.
* This is called when a client connects.
* @param [in] pServer A pointer to the %BLE server that received the client connection.
* @param [in] desc A pointer to the connection description structure containig information
* about the connection parameters.
*/
virtual void onConnect(NimBLEServer* pServer, ble_gap_conn_desc* desc);
/**
* @brief Handle a client disconnection.
* This is called when a client disconnects.
* @param [in] pServer A reference to the %BLE server that received the existing client disconnection.
*/
virtual void onDisconnect(NimBLEServer* pServer);
/**
* @brief Handle a client disconnection.
* This is called when a client discconnects.
* @param [in] pServer A pointer to the %BLE server that received the client disconnection.
* @param [in] desc A pointer to the connection description structure containing information
* about the connection.
*/
virtual void onDisconnect(NimBLEServer* pServer, ble_gap_conn_desc* desc);
/**
* @brief Called when the connection MTU changes.
* @param [in] MTU The new MTU value.
* @param [in] desc A pointer to the connection description structure containing information
* about the connection.
*/
virtual void onMTUChange(uint16_t MTU, ble_gap_conn_desc* desc);
/**
* @brief Called when a client requests a passkey for pairing.
* @return The passkey to be sent to the client.
*/
virtual uint32_t onPassKeyRequest();
//virtual void onPassKeyNotify(uint32_t pass_key);
//virtual bool onSecurityRequest();
/**
* @brief Called when the pairing procedure is complete.
* @param [in] desc A pointer to the struct containing the connection information.\n
* This can be used to check the status of the connection encryption/pairing.
*/
virtual void onAuthenticationComplete(ble_gap_conn_desc* desc);
/**
* @brief Called when using numeric comparision for pairing.
* @param [in] pin The pin to compare with the client.
* @return True to accept the pin.
*/
virtual bool onConfirmPIN(uint32_t pin);
}; // NimBLEServerCallbacks
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */
#endif /* MAIN_NIMBLESERVER_H_ */

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/*
* NimBLEService.cpp
*
* Created: on March 2, 2020
* Author H2zero
*
* Originally:
*
* BLEService.cpp
*
* Created on: Mar 25, 2017
* Author: kolban
*/
// A service is identified by a UUID. A service is also the container for one or more characteristics.
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEDevice.h"
#include "NimBLEService.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
#include <string>
static const char* LOG_TAG = "NimBLEService"; // Tag for logging.
#define NULL_HANDLE (0xffff)
/**
* @brief Construct an instance of the NimBLEService
* @param [in] uuid The UUID of the service.
*/
NimBLEService::NimBLEService(const char* uuid)
: NimBLEService(NimBLEUUID(uuid)) {
}
/**
* @brief Construct an instance of the BLEService
* @param [in] uuid The UUID of the service.
*/
NimBLEService::NimBLEService(const NimBLEUUID &uuid) {
m_uuid = uuid;
m_handle = NULL_HANDLE;
m_pSvcDef = nullptr;
m_removed = 0;
} // NimBLEService
NimBLEService::~NimBLEService() {
if(m_pSvcDef != nullptr) {
if(m_pSvcDef->characteristics != nullptr) {
for(int i=0; m_pSvcDef->characteristics[i].uuid != NULL; ++i) {
if(m_pSvcDef->characteristics[i].descriptors) {
delete(m_pSvcDef->characteristics[i].descriptors);
}
}
delete(m_pSvcDef->characteristics);
}
delete(m_pSvcDef);
}
for(auto &it : m_chrVec) {
delete it;
}
}
/**
* @brief Dump details of this BLE GATT service.
* @return N/A.
*/
void NimBLEService::dump() {
NIMBLE_LOGD(LOG_TAG, "Service: uuid:%s, handle: 0x%2x",
m_uuid.toString().c_str(),
m_handle);
std::string res;
int count = 0;
char hex[5];
for (auto &it: m_chrVec) {
if (count > 0) {res += "\n";}
snprintf(hex, sizeof(hex), "%04x", it->getHandle());
count++;
res += "handle: 0x";
res += hex;
res += ", uuid: " + std::string(it->getUUID());
}
NIMBLE_LOGD(LOG_TAG, "Characteristics:\n%s", res.c_str());
} // dump
/**
* @brief Get the UUID of the service.
* @return the UUID of the service.
*/
NimBLEUUID NimBLEService::getUUID() {
return m_uuid;
} // getUUID
/**
* @brief Builds the database of characteristics/descriptors for the service
* and registers it with the NimBLE stack.
* @return bool success/failure .
*/
bool NimBLEService::start() {
NIMBLE_LOGD(LOG_TAG, ">> start(): Starting service: %s", toString().c_str());
// Rebuild the service definition if the server attributes have changed.
if(getServer()->m_svcChanged && m_pSvcDef != nullptr) {
if(m_pSvcDef[0].characteristics) {
if(m_pSvcDef[0].characteristics[0].descriptors) {
delete(m_pSvcDef[0].characteristics[0].descriptors);
}
delete(m_pSvcDef[0].characteristics);
}
delete(m_pSvcDef);
m_pSvcDef = nullptr;
}
if(m_pSvcDef == nullptr) {
// Nimble requires an array of services to be sent to the api
// Since we are adding 1 at a time we create an array of 2 and set the type
// of the second service to 0 to indicate the end of the array.
ble_gatt_svc_def* svc = new ble_gatt_svc_def[2];
ble_gatt_chr_def* pChr_a = nullptr;
ble_gatt_dsc_def* pDsc_a = nullptr;
svc[0].type = BLE_GATT_SVC_TYPE_PRIMARY;
svc[0].uuid = &m_uuid.getNative()->u;
svc[0].includes = NULL;
int removedCount = 0;
for(auto it = m_chrVec.begin(); it != m_chrVec.end(); ) {
if ((*it)->m_removed > 0) {
if ((*it)->m_removed == NIMBLE_ATT_REMOVE_DELETE) {
delete *it;
it = m_chrVec.erase(it);
} else {
++removedCount;
++it;
}
continue;
}
++it;
}
size_t numChrs = m_chrVec.size() - removedCount;
NIMBLE_LOGD(LOG_TAG,"Adding %d characteristics for service %s", numChrs, toString().c_str());
if(!numChrs){
svc[0].characteristics = NULL;
}else{
// Nimble requires the last characteristic to have it's uuid = 0 to indicate the end
// of the characteristics for the service. We create 1 extra and set it to null
// for this purpose.
pChr_a = new ble_gatt_chr_def[numChrs + 1];
uint8_t i = 0;
for(auto chr_it = m_chrVec.begin(); chr_it != m_chrVec.end(); ++chr_it) {
if((*chr_it)->m_removed > 0) {
continue;
}
removedCount = 0;
for(auto it = (*chr_it)->m_dscVec.begin(); it != (*chr_it)->m_dscVec.end(); ) {
if ((*it)->m_removed > 0) {
if ((*it)->m_removed == NIMBLE_ATT_REMOVE_DELETE) {
delete *it;
it = (*chr_it)->m_dscVec.erase(it);
} else {
++removedCount;
++it;
}
continue;
}
++it;
}
size_t numDscs = (*chr_it)->m_dscVec.size() - removedCount;
if(!numDscs){
pChr_a[i].descriptors = NULL;
} else {
// Must have last descriptor uuid = 0 so we have to create 1 extra
pDsc_a = new ble_gatt_dsc_def[numDscs+1];
uint8_t d = 0;
for(auto dsc_it = (*chr_it)->m_dscVec.begin(); dsc_it != (*chr_it)->m_dscVec.end(); ++dsc_it ) {
if((*dsc_it)->m_removed > 0) {
continue;
}
pDsc_a[d].uuid = &(*dsc_it)->m_uuid.getNative()->u;
pDsc_a[d].att_flags = (*dsc_it)->m_properties;
pDsc_a[d].min_key_size = 0;
pDsc_a[d].access_cb = NimBLEDescriptor::handleGapEvent;
pDsc_a[d].arg = (*dsc_it);
++d;
}
pDsc_a[numDscs].uuid = NULL;
pChr_a[i].descriptors = pDsc_a;
}
pChr_a[i].uuid = &(*chr_it)->m_uuid.getNative()->u;
pChr_a[i].access_cb = NimBLECharacteristic::handleGapEvent;
pChr_a[i].arg = (*chr_it);
pChr_a[i].flags = (*chr_it)->m_properties;
pChr_a[i].min_key_size = 0;
pChr_a[i].val_handle = &(*chr_it)->m_handle;
++i;
}
pChr_a[numChrs].uuid = NULL;
svc[0].characteristics = pChr_a;
}
// end of services must indicate to api with type = 0
svc[1].type = 0;
m_pSvcDef = svc;
}
int rc = ble_gatts_count_cfg((const ble_gatt_svc_def*)m_pSvcDef);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gatts_count_cfg failed, rc= %d, %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
rc = ble_gatts_add_svcs((const ble_gatt_svc_def*)m_pSvcDef);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gatts_add_svcs, rc= %d, %s", rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
NIMBLE_LOGD(LOG_TAG, "<< start()");
return true;
} // start
/**
* @brief Get the handle associated with this service.
* @return The handle associated with this service.
*/
uint16_t NimBLEService::getHandle() {
return m_handle;
} // getHandle
/**
* @brief Create a new BLE Characteristic associated with this service.
* @param [in] uuid - The UUID of the characteristic.
* @param [in] properties - The properties of the characteristic.
* @param [in] max_len - The maximum length in bytes that the characteristic value can hold.
* @return The new BLE characteristic.
*/
NimBLECharacteristic* NimBLEService::createCharacteristic(const char* uuid, uint32_t properties, uint16_t max_len) {
return createCharacteristic(NimBLEUUID(uuid), properties, max_len);
}
/**
* @brief Create a new BLE Characteristic associated with this service.
* @param [in] uuid - The UUID of the characteristic.
* @param [in] properties - The properties of the characteristic.
* @param [in] max_len - The maximum length in bytes that the characteristic value can hold.
* @return The new BLE characteristic.
*/
NimBLECharacteristic* NimBLEService::createCharacteristic(const NimBLEUUID &uuid, uint32_t properties, uint16_t max_len) {
NimBLECharacteristic* pCharacteristic = new NimBLECharacteristic(uuid, properties, max_len, this);
if (getCharacteristic(uuid) != nullptr) {
NIMBLE_LOGD(LOG_TAG, "<< Adding a duplicate characteristic with UUID: %s",
std::string(uuid).c_str());
}
addCharacteristic(pCharacteristic);
return pCharacteristic;
} // createCharacteristic
/**
* @brief Add a characteristic to the service.
* @param[in] pCharacteristic A pointer to the characteristic instance to add to the service.
*/
void NimBLEService::addCharacteristic(NimBLECharacteristic* pCharacteristic) {
bool foundRemoved = false;
if(pCharacteristic->m_removed > 0) {
for(auto& it : m_chrVec) {
if(it == pCharacteristic) {
foundRemoved = true;
pCharacteristic->m_removed = 0;
}
}
}
if(!foundRemoved) {
m_chrVec.push_back(pCharacteristic);
}
pCharacteristic->setService(this);
getServer()->serviceChanged();
} // addCharacteristic
/**
* @brief Remove a characteristic from the service.
* @param[in] pCharacteristic A pointer to the characteristic instance to remove from the service.
* @param[in] deleteChr If true it will delete the characteristic instance and free it's resources.
*/
void NimBLEService::removeCharacteristic(NimBLECharacteristic* pCharacteristic, bool deleteChr) {
// Check if the characteristic was already removed and if so, check if this
// is being called to delete the object and do so if requested.
// Otherwise, ignore the call and return.
if(pCharacteristic->m_removed > 0) {
if(deleteChr) {
for(auto it = m_chrVec.begin(); it != m_chrVec.end(); ++it) {
if ((*it) == pCharacteristic) {
m_chrVec.erase(it);
delete *it;
break;
}
}
}
return;
}
pCharacteristic->m_removed = deleteChr ? NIMBLE_ATT_REMOVE_DELETE : NIMBLE_ATT_REMOVE_HIDE;
getServer()->serviceChanged();
} // removeCharacteristic
/**
* @brief Get a pointer to the characteristic object with the specified UUID.
* @param [in] uuid The UUID of the characteristic.
* @param instanceId The index of the characteristic to return (used when multiple characteristics have the same UUID).
* @return A pointer to the characteristic object or nullptr if not found.
*/
NimBLECharacteristic* NimBLEService::getCharacteristic(const char* uuid, uint16_t instanceId) {
return getCharacteristic(NimBLEUUID(uuid), instanceId);
}
/**
* @brief Get a pointer to the characteristic object with the specified UUID.
* @param [in] uuid The UUID of the characteristic.
* @param instanceId The index of the characteristic to return (used when multiple characteristics have the same UUID).
* @return A pointer to the characteristic object or nullptr if not found.
*/
NimBLECharacteristic* NimBLEService::getCharacteristic(const NimBLEUUID &uuid, uint16_t instanceId) {
uint16_t position = 0;
for (auto &it : m_chrVec) {
if (it->getUUID() == uuid) {
if (position == instanceId) {
return it;
}
position++;
}
}
return nullptr;
}
/**
* @brief Get a pointer to the characteristic object with the specified handle.
* @param handle The handle of the characteristic.
* @return A pointer to the characteristic object or nullptr if not found.
*/
NimBLECharacteristic *NimBLEService::getCharacteristicByHandle(uint16_t handle) {
for (auto &it : m_chrVec) {
if (it->getHandle() == handle) {
return it;
}
}
return nullptr;
}
/**
* @return A vector containing pointers to each characteristic associated with this service.
*/
std::vector<NimBLECharacteristic *> NimBLEService::getCharacteristics() {
return m_chrVec;
}
/**
* @return A vector containing pointers to each characteristic with the provided UUID associated with this service.
*/
std::vector<NimBLECharacteristic *> NimBLEService::getCharacteristics(const char *uuid) {
return getCharacteristics(NimBLEUUID(uuid));
}
/**
* @return A vector containing pointers to each characteristic with the provided UUID associated with this service.
*/
std::vector<NimBLECharacteristic *> NimBLEService::getCharacteristics(const NimBLEUUID &uuid) {
std::vector<NimBLECharacteristic*> result;
for (auto &it : m_chrVec) {
if (it->getUUID() == uuid) {
result.push_back(it);
}
}
return result;
}
/**
* @brief Return a string representation of this service.
* A service is defined by:
* * Its UUID
* * Its handle
* @return A string representation of this service.
*/
std::string NimBLEService::toString() {
std::string res = "UUID: " + getUUID().toString();
char hex[5];
snprintf(hex, sizeof(hex), "%04x", getHandle());
res += ", handle: 0x";
res += hex;
return res;
} // toString
/**
* @brief Get the BLE server associated with this service.
* @return The BLEServer associated with this service.
*/
NimBLEServer* NimBLEService::getServer() {
return NimBLEDevice::getServer();
}// getServer
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */

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@ -1,87 +0,0 @@
/*
* NimBLEService.h
*
* Created: on March 2, 2020
* Author H2zero
*
* Originally:
*
* BLEService.h
*
* Created on: Mar 25, 2017
* Author: kolban
*/
#ifndef MAIN_NIMBLESERVICE_H_
#define MAIN_NIMBLESERVICE_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
#include "NimBLEServer.h"
#include "NimBLECharacteristic.h"
#include "NimBLEUUID.h"
class NimBLEServer;
class NimBLECharacteristic;
/**
* @brief The model of a %BLE service.
*
*/
class NimBLEService {
public:
NimBLEService(const char* uuid);
NimBLEService(const NimBLEUUID &uuid);
~NimBLEService();
NimBLEServer* getServer();
NimBLEUUID getUUID();
uint16_t getHandle();
std::string toString();
void dump();
bool start();
NimBLECharacteristic* createCharacteristic(const char* uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);
NimBLECharacteristic* createCharacteristic(const NimBLEUUID &uuid,
uint32_t properties =
NIMBLE_PROPERTY::READ |
NIMBLE_PROPERTY::WRITE,
uint16_t max_len = BLE_ATT_ATTR_MAX_LEN);
void addCharacteristic(NimBLECharacteristic* pCharacteristic);
void removeCharacteristic(NimBLECharacteristic* pCharacteristic, bool deleteChr = false);
NimBLECharacteristic* getCharacteristic(const char* uuid, uint16_t instanceId = 0);
NimBLECharacteristic* getCharacteristic(const NimBLEUUID &uuid, uint16_t instanceId = 0);
NimBLECharacteristic* getCharacteristicByHandle(uint16_t handle);
std::vector<NimBLECharacteristic*> getCharacteristics();
std::vector<NimBLECharacteristic*> getCharacteristics(const char* uuid);
std::vector<NimBLECharacteristic*> getCharacteristics(const NimBLEUUID &uuid);
private:
friend class NimBLEServer;
friend class NimBLEDevice;
uint16_t m_handle;
NimBLEUUID m_uuid;
ble_gatt_svc_def* m_pSvcDef;
uint8_t m_removed;
std::vector<NimBLECharacteristic*> m_chrVec;
}; // NimBLEService
#endif /* CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_PERIPHERAL */
#endif /* MAIN_NIMBLESERVICE_H_ */

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/*
* NimBLEUUID.cpp
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEUUID.cpp
*
* Created on: Jun 21, 2017
* Author: kolban
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include "NimBLEUtils.h"
#include "NimBLEUUID.h"
#include "NimBLELog.h"
#include <algorithm>
static const char* LOG_TAG = "NimBLEUUID";
/**
* @brief Create a UUID from a string.
*
* Create a UUID from a string. There will be two possible stories here. Either the string represents
* a binary data field or the string represents a hex encoding of a UUID.
* For the hex encoding, here is an example:
*
* ```
* "beb5483e-36e1-4688-b7f5-ea07361b26a8"
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
* 12345678-90ab-cdef-1234-567890abcdef
* ```
*
* This has a length of 36 characters. We need to parse this into 16 bytes.
*
* @param [in] value The string to build a UUID from.
*/
NimBLEUUID::NimBLEUUID(const std::string &value) {
m_valueSet = true;
if (value.length() == 4) {
m_uuid.u.type = BLE_UUID_TYPE_16;
m_uuid.u16.value = strtoul(value.c_str(), NULL, 16);
}
else if (value.length() == 8) {
m_uuid.u.type = BLE_UUID_TYPE_32;
m_uuid.u32.value = strtoul(value.c_str(), NULL, 16);
}
else if (value.length() == 16) {
*this = NimBLEUUID((uint8_t*)value.data(), 16, true);
}
else if (value.length() == 36) {
// If the length of the string is 36 bytes then we will assume it is a long hex string in
// UUID format.
char * position = const_cast<char *>(value.c_str());
uint32_t first = strtoul(position, &position, 16);
uint16_t second = strtoul(position + 1, &position, 16);
uint16_t third = strtoul(position + 1, &position, 16);
uint16_t fourth = strtoul(position + 1, &position, 16);
uint64_t fifth = strtoull(position + 1, NULL, 16);
*this = NimBLEUUID(first, second, third, (uint64_t(fourth) << 48) + fifth);
}
else {
m_valueSet = false;
}
} // NimBLEUUID(std::string)
/**
* @brief Create a UUID from 2, 4, 16 bytes of memory.
* @param [in] pData The pointer to the start of the UUID.
* @param [in] size The size of the data.
* @param [in] msbFirst Is the MSB first in pData memory?
*/
NimBLEUUID::NimBLEUUID(const uint8_t* pData, size_t size, bool msbFirst) {
uint8_t *uuidValue = nullptr;
switch(size) {
case 2:
uuidValue = (uint8_t*)&m_uuid.u16.value;
m_uuid.u.type = BLE_UUID_TYPE_16;
break;
case 4:
uuidValue = (uint8_t*)&m_uuid.u32.value;
m_uuid.u.type = BLE_UUID_TYPE_32;
break;
case 16:
uuidValue = m_uuid.u128.value;
m_uuid.u.type = BLE_UUID_TYPE_128;
break;
default:
m_valueSet = false;
NIMBLE_LOGE(LOG_TAG, "Invalid UUID size");
return;
}
if (msbFirst) {
std::reverse_copy(pData, pData + size, uuidValue);
} else {
memcpy(uuidValue, pData, size);
}
m_valueSet = true;
} // NimBLEUUID
/**
* @brief Create a UUID from the 16bit value.
* @param [in] uuid The 16bit short form UUID.
*/
NimBLEUUID::NimBLEUUID(uint16_t uuid) {
m_uuid.u.type = BLE_UUID_TYPE_16;
m_uuid.u16.value = uuid;
m_valueSet = true;
} // NimBLEUUID
/**
* @brief Create a UUID from the 32bit value.
* @param [in] uuid The 32bit short form UUID.
*/
NimBLEUUID::NimBLEUUID(uint32_t uuid) {
m_uuid.u.type = BLE_UUID_TYPE_32;
m_uuid.u32.value = uuid;
m_valueSet = true;
} // NimBLEUUID
/**
* @brief Create a UUID from the native UUID.
* @param [in] uuid The native UUID.
*/
NimBLEUUID::NimBLEUUID(const ble_uuid128_t* uuid) {
m_uuid.u.type = BLE_UUID_TYPE_128;
memcpy(m_uuid.u128.value, uuid->value, 16);
m_valueSet = true;
} // NimBLEUUID
/**
* @brief Create a UUID from the 128bit value using hex parts instead of string,
* instead of NimBLEUUID("ebe0ccb0-7a0a-4b0c-8a1a-6ff2997da3a6"), it becomes
* NimBLEUUID(0xebe0ccb0, 0x7a0a, 0x4b0c, 0x8a1a6ff2997da3a6)
*
* @param [in] first The first 32bit of the UUID.
* @param [in] second The next 16bit of the UUID.
* @param [in] third The next 16bit of the UUID.
* @param [in] fourth The last 64bit of the UUID, combining the last 2 parts of the string equivalent
*/
NimBLEUUID::NimBLEUUID(uint32_t first, uint16_t second, uint16_t third, uint64_t fourth) {
m_uuid.u.type = BLE_UUID_TYPE_128;
memcpy(m_uuid.u128.value + 12, &first, 4);
memcpy(m_uuid.u128.value + 10, &second, 2);
memcpy(m_uuid.u128.value + 8, &third, 2);
memcpy(m_uuid.u128.value, &fourth, 8);
m_valueSet = true;
}
/**
* @brief Creates an empty UUID.
*/
NimBLEUUID::NimBLEUUID() {
m_valueSet = false;
} // NimBLEUUID
/**
* @brief Get the number of bits in this uuid.
* @return The number of bits in the UUID. One of 16, 32 or 128.
*/
uint8_t NimBLEUUID::bitSize() const {
if (!m_valueSet) return 0;
return m_uuid.u.type;
} // bitSize
/**
* @brief Compare a UUID against this UUID.
*
* @param [in] uuid The UUID to compare against.
* @return True if the UUIDs are equal and false otherwise.
*/
bool NimBLEUUID::equals(const NimBLEUUID &uuid) const {
return *this == uuid;
}
/**
* Create a NimBLEUUID from a string of the form:
* 0xNNNN
* 0xNNNNNNNN
* 0x<UUID\>
* NNNN
* NNNNNNNN
* <UUID\>
*
* @param [in] uuid The string to create the UUID from.
*/
NimBLEUUID NimBLEUUID::fromString(const std::string &uuid) {
uint8_t start = 0;
if (strstr(uuid.c_str(), "0x") != nullptr) { // If the string starts with 0x, skip those characters.
start = 2;
}
uint8_t len = uuid.length() - start; // Calculate the length of the string we are going to use.
if(len == 4) {
uint16_t x = strtoul(uuid.substr(start, len).c_str(), NULL, 16);
return NimBLEUUID(x);
} else if (len == 8) {
uint32_t x = strtoul(uuid.substr(start, len).c_str(), NULL, 16);
return NimBLEUUID(x);
} else if (len == 36) {
return NimBLEUUID(uuid);
}
return NimBLEUUID();
} // fromString
/**
* @brief Get the native UUID value.
* @return The native UUID value or nullptr if not set.
*/
const ble_uuid_any_t* NimBLEUUID::getNative() const {
if (m_valueSet == false) {
NIMBLE_LOGD(LOG_TAG,"<< Return of un-initialized UUID!");
return nullptr;
}
return &m_uuid;
} // getNative
/**
* @brief Convert a UUID to its 128 bit representation.
* @details A UUID can be internally represented as 16bit, 32bit or the full 128bit.
* This method will convert 16 or 32bit representations to the full 128bit.
* @return The NimBLEUUID converted to 128bit.
*/
const NimBLEUUID &NimBLEUUID::to128() {
// If we either don't have a value or are already a 128 bit UUID, nothing further to do.
if (!m_valueSet || m_uuid.u.type == BLE_UUID_TYPE_128) {
return *this;
}
// If we are 16 bit or 32 bit, then set the other bytes of the UUID.
if (m_uuid.u.type == BLE_UUID_TYPE_16) {
*this = NimBLEUUID(m_uuid.u16.value, 0x0000, 0x1000, 0x800000805f9b34fb);
}
else if (m_uuid.u.type == BLE_UUID_TYPE_32) {
*this = NimBLEUUID(m_uuid.u32.value, 0x0000, 0x1000, 0x800000805f9b34fb);
}
return *this;
} // to128
/**
* @brief Convert 128 bit UUID to its 16 bit representation.
* @details A UUID can be internally represented as 16bit, 32bit or the full 128bit.
* This method will convert a 128bit uuid to 16bit if it contains the ble base uuid.
* @return The NimBLEUUID converted to 16bit if successful, otherwise the original uuid.
*/
const NimBLEUUID& NimBLEUUID::to16() {
if (!m_valueSet || m_uuid.u.type == BLE_UUID_TYPE_16) {
return *this;
}
if (m_uuid.u.type == BLE_UUID_TYPE_128) {
uint8_t base128[] = {0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00,
0x00, 0x80, 0x00, 0x10, 0x00, 0x00};
if (memcmp(m_uuid.u128.value, base128, sizeof(base128)) == 0 ) {
*this = NimBLEUUID(*(uint16_t*)(m_uuid.u128.value + 12));
}
}
return *this;
}
/**
* @brief Get a string representation of the UUID.
* @details
* The format of a string is:
* 01234567 8901 2345 6789 012345678901
* 0000180d-0000-1000-8000-00805f9b34fb
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
*
* @return A string representation of the UUID.
* @deprecated Use std::string() operator instead.
*/
std::string NimBLEUUID::toString() const {
return std::string(*this);
} // toString
/**
* @brief Convenience operator to check if this UUID is equal to another.
*/
bool NimBLEUUID::operator ==(const NimBLEUUID & rhs) const {
if(m_valueSet && rhs.m_valueSet) {
if(m_uuid.u.type != rhs.m_uuid.u.type) {
uint8_t uuidBase[16] = {
0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
if(m_uuid.u.type == BLE_UUID_TYPE_128){
if(rhs.m_uuid.u.type == BLE_UUID_TYPE_16){
memcpy(uuidBase+12, &rhs.m_uuid.u16.value, 2);
} else if (rhs.m_uuid.u.type == BLE_UUID_TYPE_32){
memcpy(uuidBase+12, &rhs.m_uuid.u32.value, 4);
}
return memcmp(m_uuid.u128.value,uuidBase,16) == 0;
} else if(rhs.m_uuid.u.type == BLE_UUID_TYPE_128) {
if(m_uuid.u.type == BLE_UUID_TYPE_16){
memcpy(uuidBase+12, &m_uuid.u16.value, 2);
} else if (m_uuid.u.type == BLE_UUID_TYPE_32){
memcpy(uuidBase+12, &m_uuid.u32.value, 4);
}
return memcmp(rhs.m_uuid.u128.value,uuidBase,16) == 0;
} else {
return false;
}
}
return ble_uuid_cmp(&m_uuid.u, &rhs.m_uuid.u) == 0;
}
return m_valueSet == rhs.m_valueSet;
}
/**
* @brief Convenience operator to check if this UUID is not equal to another.
*/
bool NimBLEUUID::operator !=(const NimBLEUUID & rhs) const {
return !this->operator==(rhs);
}
/**
* @brief Convenience operator to convert this UUID to string representation.
* @details This allows passing NimBLEUUID to functions
* that accept std::string and/or or it's methods as a parameter.
*/
NimBLEUUID::operator std::string() const {
if (!m_valueSet) return std::string(); // If we have no value, nothing to format.
char buf[BLE_UUID_STR_LEN];
return ble_uuid_to_str(&m_uuid.u, buf);
}
#endif /* CONFIG_BT_ENABLED */

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/*
* NimBLEUUID.h
*
* Created: on Jan 24 2020
* Author H2zero
*
* Originally:
*
* BLEUUID.h
*
* Created on: Jun 21, 2017
* Author: kolban
*/
#ifndef COMPONENTS_NIMBLEUUID_H_
#define COMPONENTS_NIMBLEUUID_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_uuid.h"
#else
#include "nimble/nimble/host/include/host/ble_uuid.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include <string>
/**
* @brief A model of a %BLE UUID.
*/
class NimBLEUUID {
public:
NimBLEUUID(const std::string &uuid);
NimBLEUUID(uint16_t uuid);
NimBLEUUID(uint32_t uuid);
NimBLEUUID(const ble_uuid128_t* uuid);
NimBLEUUID(const uint8_t* pData, size_t size, bool msbFirst);
NimBLEUUID(uint32_t first, uint16_t second, uint16_t third, uint64_t fourth);
NimBLEUUID();
uint8_t bitSize() const;
bool equals(const NimBLEUUID &uuid) const;
const ble_uuid_any_t* getNative() const;
const NimBLEUUID & to128();
const NimBLEUUID& to16();
std::string toString() const;
static NimBLEUUID fromString(const std::string &uuid);
bool operator ==(const NimBLEUUID & rhs) const;
bool operator !=(const NimBLEUUID & rhs) const;
operator std::string() const;
private:
ble_uuid_any_t m_uuid;
bool m_valueSet = false;
}; // NimBLEUUID
#endif /* CONFIG_BT_ENABLED */
#endif /* COMPONENTS_NIMBLEUUID_H_ */

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/*
* NimBLEUtils.cpp
*
* Created: on Jan 25 2020
* Author H2zero
*
*/
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include "NimBLEUtils.h"
#include "NimBLELog.h"
#include <stdlib.h>
static const char* LOG_TAG = "NimBLEUtils";
/**
* @brief A function for checking validity of connection parameters.
* @param [in] params A pointer to the structure containing the parameters to check.
* @return valid == 0 or error code.
*/
int NimBLEUtils::checkConnParams(ble_gap_conn_params* params) {
/* Check connection interval min */
if ((params->itvl_min < BLE_HCI_CONN_ITVL_MIN) ||
(params->itvl_min > BLE_HCI_CONN_ITVL_MAX)) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
/* Check connection interval max */
if ((params->itvl_max < BLE_HCI_CONN_ITVL_MIN) ||
(params->itvl_max > BLE_HCI_CONN_ITVL_MAX) ||
(params->itvl_max < params->itvl_min)) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
/* Check connection latency */
if (params->latency > BLE_HCI_CONN_LATENCY_MAX) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
/* Check supervision timeout */
if ((params->supervision_timeout < BLE_HCI_CONN_SPVN_TIMEOUT_MIN) ||
(params->supervision_timeout > BLE_HCI_CONN_SPVN_TIMEOUT_MAX)) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
/* Check connection event length */
if (params->min_ce_len > params->max_ce_len) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
return 0;
}
/**
* @brief Converts a return code from the NimBLE stack to a text string.
* @param [in] rc The return code to convert.
* @return A string representation of the return code.
*/
const char* NimBLEUtils::returnCodeToString(int rc) {
#if defined(CONFIG_NIMBLE_CPP_ENABLE_RETURN_CODE_TEXT)
switch(rc) {
case 0:
return "SUCCESS";
case BLE_HS_EAGAIN:
return "Temporary failure; try again.";
case BLE_HS_EALREADY:
return "Operation already in progress or completed.";
case BLE_HS_EINVAL:
return "One or more arguments are invalid.";
case BLE_HS_EMSGSIZE:
return "The provided buffer is too small.";
case BLE_HS_ENOENT:
return "No entry matching the specified criteria.";
case BLE_HS_ENOMEM:
return "Operation failed due to resource exhaustion.";
case BLE_HS_ENOTCONN:
return "No open connection with the specified handle.";
case BLE_HS_ENOTSUP:
return "Operation disabled at compile time.";
case BLE_HS_EAPP:
return "Application callback behaved unexpectedly.";
case BLE_HS_EBADDATA:
return "Command from peer is invalid.";
case BLE_HS_EOS:
return "Mynewt OS error.";
case BLE_HS_ECONTROLLER:
return "Event from controller is invalid.";
case BLE_HS_ETIMEOUT:
return "Operation timed out.";
case BLE_HS_EDONE:
return "Operation completed successfully.";
case BLE_HS_EBUSY:
return "Operation cannot be performed until procedure completes.";
case BLE_HS_EREJECT:
return "Peer rejected a connection parameter update request.";
case BLE_HS_EUNKNOWN:
return "Unexpected failure; catch all.";
case BLE_HS_EROLE:
return "Operation requires different role (e.g., central vs. peripheral).";
case BLE_HS_ETIMEOUT_HCI:
return "HCI request timed out; controller unresponsive.";
case BLE_HS_ENOMEM_EVT:
return "Controller failed to send event due to memory exhaustion (combined host-controller only).";
case BLE_HS_ENOADDR:
return "Operation requires an identity address but none configured.";
case BLE_HS_ENOTSYNCED:
return "Attempt to use the host before it is synced with controller.";
case BLE_HS_EAUTHEN:
return "Insufficient authentication.";
case BLE_HS_EAUTHOR:
return "Insufficient authorization.";
case BLE_HS_EENCRYPT:
return "Insufficient encryption level.";
case BLE_HS_EENCRYPT_KEY_SZ:
return "Insufficient key size.";
case BLE_HS_ESTORE_CAP:
return "Storage at capacity.";
case BLE_HS_ESTORE_FAIL:
return "Storage IO error.";
case (0x0100+BLE_ATT_ERR_INVALID_HANDLE ):
return "The attribute handle given was not valid on this server.";
case (0x0100+BLE_ATT_ERR_READ_NOT_PERMITTED ):
return "The attribute cannot be read.";
case (0x0100+BLE_ATT_ERR_WRITE_NOT_PERMITTED ):
return "The attribute cannot be written.";
case (0x0100+BLE_ATT_ERR_INVALID_PDU ):
return "The attribute PDU was invalid.";
case (0x0100+BLE_ATT_ERR_INSUFFICIENT_AUTHEN ):
return "The attribute requires authentication before it can be read or written.";
case (0x0100+BLE_ATT_ERR_REQ_NOT_SUPPORTED ):
return "Attribute server does not support the request received from the client.";
case (0x0100+BLE_ATT_ERR_INVALID_OFFSET ):
return "Offset specified was past the end of the attribute.";
case (0x0100+BLE_ATT_ERR_INSUFFICIENT_AUTHOR ):
return "The attribute requires authorization before it can be read or written.";
case (0x0100+BLE_ATT_ERR_PREPARE_QUEUE_FULL ):
return "Too many prepare writes have been queued.";
case (0x0100+BLE_ATT_ERR_ATTR_NOT_FOUND ):
return "No attribute found within the given attribute handle range.";
case (0x0100+BLE_ATT_ERR_ATTR_NOT_LONG ):
return "The attribute cannot be read or written using the Read Blob Request.";
case (0x0100+BLE_ATT_ERR_INSUFFICIENT_KEY_SZ ):
return "The Encryption Key Size used for encrypting this link is insufficient.";
case (0x0100+BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN ):
return "The attribute value length is invalid for the operation.";
case (0x0100+BLE_ATT_ERR_UNLIKELY ):
return "The attribute request has encountered an error that was unlikely, could not be completed as requested.";
case (0x0100+BLE_ATT_ERR_INSUFFICIENT_ENC ):
return "The attribute requires encryption before it can be read or written.";
case (0x0100+BLE_ATT_ERR_UNSUPPORTED_GROUP ):
return "The attribute type is not a supported grouping attribute as defined by a higher layer specification.";
case (0x0100+BLE_ATT_ERR_INSUFFICIENT_RES ):
return "Insufficient Resources to complete the request.";
case (0x0200+BLE_ERR_UNKNOWN_HCI_CMD ):
return "Unknown HCI Command";
case (0x0200+BLE_ERR_UNK_CONN_ID ):
return "Unknown Connection Identifier";
case (0x0200+BLE_ERR_HW_FAIL ):
return "Hardware Failure";
case (0x0200+BLE_ERR_PAGE_TMO ):
return "Page Timeout";
case (0x0200+BLE_ERR_AUTH_FAIL ):
return "Authentication Failure";
case (0x0200+BLE_ERR_PINKEY_MISSING ):
return "PIN or Key Missing";
case (0x0200+BLE_ERR_MEM_CAPACITY ):
return "Memory Capacity Exceeded";
case (0x0200+BLE_ERR_CONN_SPVN_TMO ):
return "Connection Timeout";
case (0x0200+BLE_ERR_CONN_LIMIT ):
return "Connection Limit Exceeded";
case (0x0200+BLE_ERR_SYNCH_CONN_LIMIT ):
return "Synchronous Connection Limit To A Device Exceeded";
case (0x0200+BLE_ERR_ACL_CONN_EXISTS ):
return "ACL Connection Already Exists";
case (0x0200+BLE_ERR_CMD_DISALLOWED ):
return "Command Disallowed";
case (0x0200+BLE_ERR_CONN_REJ_RESOURCES ):
return "Connection Rejected due to Limited Resources";
case (0x0200+BLE_ERR_CONN_REJ_SECURITY ):
return "Connection Rejected Due To Security Reasons";
case (0x0200+BLE_ERR_CONN_REJ_BD_ADDR ):
return "Connection Rejected due to Unacceptable BD_ADDR";
case (0x0200+BLE_ERR_CONN_ACCEPT_TMO ):
return "Connection Accept Timeout Exceeded";
case (0x0200+BLE_ERR_UNSUPPORTED ):
return "Unsupported Feature or Parameter Value";
case (0x0200+BLE_ERR_INV_HCI_CMD_PARMS ):
return "Invalid HCI Command Parameters";
case (0x0200+BLE_ERR_REM_USER_CONN_TERM ):
return "Remote User Terminated Connection";
case (0x0200+BLE_ERR_RD_CONN_TERM_RESRCS ):
return "Remote Device Terminated Connection due to Low Resources";
case (0x0200+BLE_ERR_RD_CONN_TERM_PWROFF ):
return "Remote Device Terminated Connection due to Power Off";
case (0x0200+BLE_ERR_CONN_TERM_LOCAL ):
return "Connection Terminated By Local Host";
case (0x0200+BLE_ERR_REPEATED_ATTEMPTS ):
return "Repeated Attempts";
case (0x0200+BLE_ERR_NO_PAIRING ):
return "Pairing Not Allowed";
case (0x0200+BLE_ERR_UNK_LMP ):
return "Unknown LMP PDU";
case (0x0200+BLE_ERR_UNSUPP_REM_FEATURE ):
return "Unsupported Remote Feature / Unsupported LMP Feature";
case (0x0200+BLE_ERR_SCO_OFFSET ):
return "SCO Offset Rejected";
case (0x0200+BLE_ERR_SCO_ITVL ):
return "SCO Interval Rejected";
case (0x0200+BLE_ERR_SCO_AIR_MODE ):
return "SCO Air Mode Rejected";
case (0x0200+BLE_ERR_INV_LMP_LL_PARM ):
return "Invalid LMP Parameters / Invalid LL Parameters";
case (0x0200+BLE_ERR_UNSPECIFIED ):
return "Unspecified Error";
case (0x0200+BLE_ERR_UNSUPP_LMP_LL_PARM ):
return "Unsupported LMP Parameter Value / Unsupported LL Parameter Value";
case (0x0200+BLE_ERR_NO_ROLE_CHANGE ):
return "Role Change Not Allowed";
case (0x0200+BLE_ERR_LMP_LL_RSP_TMO ):
return "LMP Response Timeout / LL Response Timeout";
case (0x0200+BLE_ERR_LMP_COLLISION ):
return "LMP Error Transaction Collision";
case (0x0200+BLE_ERR_LMP_PDU ):
return "LMP PDU Not Allowed";
case (0x0200+BLE_ERR_ENCRYPTION_MODE ):
return "Encryption Mode Not Acceptable";
case (0x0200+BLE_ERR_LINK_KEY_CHANGE ):
return "Link Key cannot be Changed";
case (0x0200+BLE_ERR_UNSUPP_QOS ):
return "Requested QoS Not Supported";
case (0x0200+BLE_ERR_INSTANT_PASSED ):
return "Instant Passed";
case (0x0200+BLE_ERR_UNIT_KEY_PAIRING ):
return "Pairing With Unit Key Not Supported";
case (0x0200+BLE_ERR_DIFF_TRANS_COLL ):
return "Different Transaction Collision";
case (0x0200+BLE_ERR_QOS_PARM ):
return "QoS Unacceptable Parameter";
case (0x0200+BLE_ERR_QOS_REJECTED ):
return "QoS Rejected";
case (0x0200+BLE_ERR_CHAN_CLASS ):
return "Channel Classification Not Supported";
case (0x0200+BLE_ERR_INSUFFICIENT_SEC ):
return "Insufficient Security";
case (0x0200+BLE_ERR_PARM_OUT_OF_RANGE ):
return "Parameter Out Of Mandatory Range";
case (0x0200+BLE_ERR_PENDING_ROLE_SW ):
return "Role Switch Pending";
case (0x0200+BLE_ERR_RESERVED_SLOT ):
return "Reserved Slot Violation";
case (0x0200+BLE_ERR_ROLE_SW_FAIL ):
return "Role Switch Failed";
case (0x0200+BLE_ERR_INQ_RSP_TOO_BIG ):
return "Extended Inquiry Response Too Large";
case (0x0200+BLE_ERR_SEC_SIMPLE_PAIR ):
return "Secure Simple Pairing Not Supported By Host";
case (0x0200+BLE_ERR_HOST_BUSY_PAIR ):
return "Host Busy - Pairing";
case (0x0200+BLE_ERR_CONN_REJ_CHANNEL ):
return "Connection Rejected, No Suitable Channel Found";
case (0x0200+BLE_ERR_CTLR_BUSY ):
return "Controller Busy";
case (0x0200+BLE_ERR_CONN_PARMS ):
return "Unacceptable Connection Parameters";
case (0x0200+BLE_ERR_DIR_ADV_TMO ):
return "Directed Advertising Timeout";
case (0x0200+BLE_ERR_CONN_TERM_MIC ):
return "Connection Terminated due to MIC Failure";
case (0x0200+BLE_ERR_CONN_ESTABLISHMENT ):
return "Connection Failed to be Established";
case (0x0200+BLE_ERR_MAC_CONN_FAIL ):
return "MAC Connection Failed";
case (0x0200+BLE_ERR_COARSE_CLK_ADJ ):
return "Coarse Clock Adjustment Rejected";
case (0x0300+BLE_L2CAP_SIG_ERR_CMD_NOT_UNDERSTOOD ):
return "Invalid or unsupported incoming L2CAP sig command.";
case (0x0300+BLE_L2CAP_SIG_ERR_MTU_EXCEEDED ):
return "Incoming packet too large.";
case (0x0300+BLE_L2CAP_SIG_ERR_INVALID_CID ):
return "No channel with specified ID.";
case (0x0400+BLE_SM_ERR_PASSKEY ):
return "The user input of passkey failed, for example, the user cancelled the operation.";
case (0x0400+BLE_SM_ERR_OOB ):
return "The OOB data is not available.";
case (0x0400+BLE_SM_ERR_AUTHREQ ):
return "The pairing procedure cannot be performed as authentication requirements cannot be met due to IO capabilities of one or both devices.";
case (0x0400+BLE_SM_ERR_CONFIRM_MISMATCH ):
return "The confirm value does not match the calculated compare value.";
case (0x0400+BLE_SM_ERR_PAIR_NOT_SUPP ):
return "Pairing is not supported by the device.";
case (0x0400+BLE_SM_ERR_ENC_KEY_SZ ):
return "The resultant encryption key size is insufficient for the security requirements of this device.";
case (0x0400+BLE_SM_ERR_CMD_NOT_SUPP ):
return "The SMP command received is not supported on this device.";
case (0x0400+BLE_SM_ERR_UNSPECIFIED ):
return "Pairing failed due to an unspecified reason.";
case (0x0400+BLE_SM_ERR_REPEATED ):
return "Pairing or authentication procedure disallowed, too little time has elapsed since last pairing request or security request.";
case (0x0400+BLE_SM_ERR_INVAL ):
return "Command length is invalid or that a parameter is outside of the specified range.";
case (0x0400+BLE_SM_ERR_DHKEY ):
return "DHKey Check value received doesn't match the one calculated by the local device.";
case (0x0400+BLE_SM_ERR_NUMCMP ):
return "Confirm values in the numeric comparison protocol do not match.";
case (0x0400+BLE_SM_ERR_ALREADY ):
return "Pairing over the LE transport failed - Pairing Request sent over the BR/EDR transport in process.";
case (0x0400+BLE_SM_ERR_CROSS_TRANS ):
return "BR/EDR Link Key generated on the BR/EDR transport cannot be used to derive and distribute keys for the LE transport.";
case (0x0500+BLE_SM_ERR_PASSKEY ):
return "The user input of passkey failed or the user cancelled the operation.";
case (0x0500+BLE_SM_ERR_OOB ):
return "The OOB data is not available.";
case (0x0500+BLE_SM_ERR_AUTHREQ ):
return "The pairing procedure cannot be performed as authentication requirements cannot be met due to IO capabilities of one or both devices.";
case (0x0500+BLE_SM_ERR_CONFIRM_MISMATCH ):
return "The confirm value does not match the calculated compare value.";
case (0x0500+BLE_SM_ERR_PAIR_NOT_SUPP ):
return "Pairing is not supported by the device.";
case (0x0500+BLE_SM_ERR_ENC_KEY_SZ ):
return "The resultant encryption key size is insufficient for the security requirements of this device.";
case (0x0500+BLE_SM_ERR_CMD_NOT_SUPP ):
return "The SMP command received is not supported on this device.";
case (0x0500+BLE_SM_ERR_UNSPECIFIED ):
return "Pairing failed due to an unspecified reason.";
case (0x0500+BLE_SM_ERR_REPEATED ):
return "Pairing or authentication procedure is disallowed because too little time has elapsed since last pairing request or security request.";
case (0x0500+BLE_SM_ERR_INVAL ):
return "Command length is invalid or a parameter is outside of the specified range.";
case (0x0500+BLE_SM_ERR_DHKEY ):
return "Indicates to the remote device that the DHKey Check value received doesn’t match the one calculated by the local device.";
case (0x0500+BLE_SM_ERR_NUMCMP ):
return "Confirm values in the numeric comparison protocol do not match.";
case (0x0500+BLE_SM_ERR_ALREADY ):
return "Pairing over the LE transport failed - Pairing Request sent over the BR/EDR transport in process.";
case (0x0500+BLE_SM_ERR_CROSS_TRANS ):
return "BR/EDR Link Key generated on the BR/EDR transport cannot be used to derive and distribute keys for the LE transport.";
default:
return "Unknown";
}
#else // #if defined(CONFIG_NIMBLE_CPP_ENABLE_RETURN_CODE_TEXT)
(void)rc;
return "";
#endif // #if defined(CONFIG_NIMBLE_CPP_ENABLE_RETURN_CODE_TEXT)
}
/**
* @brief Convert the advertising type flag to a string.
* @param advType The type to convert.
* @return A string representation of the advertising flags.
*/
const char* NimBLEUtils::advTypeToString(uint8_t advType) {
#if defined(CONFIG_NIMBLE_CPP_ENABLE_ADVERTISEMENT_TYPE_TEXT)
switch(advType) {
case BLE_HCI_ADV_TYPE_ADV_IND : //0
return "Undirected - Connectable / Scannable";
case BLE_HCI_ADV_TYPE_ADV_DIRECT_IND_HD: //1
return "Directed High Duty - Connectable";
case BLE_HCI_ADV_TYPE_ADV_SCAN_IND: //2
return "Non-Connectable - Scan Response Available";
case BLE_HCI_ADV_TYPE_ADV_NONCONN_IND: //3
return "Non-Connectable - No Scan Response";
case BLE_HCI_ADV_TYPE_ADV_DIRECT_IND_LD: //4
return "Directed Low Duty - Connectable";
default:
return "Unknown flag";
}
#else // #if defined(CONFIG_NIMBLE_CPP_ENABLE_ADVERTISEMENT_TYPE_TEXT)
(void)advType;
return "";
#endif // #if defined(CONFIG_NIMBLE_CPP_ENABLE_ADVERTISEMENT_TYPE_TEXT)
} // adFlagsToString
/**
* @brief Create a hex representation of data.
*
* @param [in] target Where to write the hex string. If this is null, we malloc storage.
* @param [in] source The start of the binary data.
* @param [in] length The length of the data to convert.
* @return A pointer to the formatted buffer.
*/
char* NimBLEUtils::buildHexData(uint8_t* target, const uint8_t* source, uint8_t length) {
// Guard against too much data.
if (length > 100) length = 100;
if (target == nullptr) {
target = (uint8_t*) malloc(length * 2 + 1);
if (target == nullptr) {
NIMBLE_LOGE(LOG_TAG, "buildHexData: malloc failed");
return nullptr;
}
}
char* startOfData = (char*) target;
for (int i = 0; i < length; i++) {
sprintf((char*) target, "%.2x", (char) *source);
source++;
target += 2;
}
// Handle the special case where there was no data.
if (length == 0) {
*startOfData = 0;
}
return startOfData;
} // buildHexData
/**
* @brief Utility function to log the gap event info.
* @param [in] event A pointer to the gap event structure.
* @param [in] arg Unused.
*/
void NimBLEUtils::dumpGapEvent(ble_gap_event *event, void *arg){
(void)arg;
#if defined(CONFIG_NIMBLE_CPP_ENABLE_GAP_EVENT_CODE_TEXT)
NIMBLE_LOGD(LOG_TAG, "Received a GAP event: %s", gapEventToString(event->type));
#else
(void)event;
#endif
}
/**
* @brief Convert a GAP event type to a string representation.
* @param [in] eventType The type of event.
* @return A string representation of the event type.
*/
const char* NimBLEUtils::gapEventToString(uint8_t eventType) {
#if defined(CONFIG_NIMBLE_CPP_ENABLE_GAP_EVENT_CODE_TEXT)
switch (eventType) {
case BLE_GAP_EVENT_CONNECT : //0
return "BLE_GAP_EVENT_CONNECT ";
case BLE_GAP_EVENT_DISCONNECT: //1
return "BLE_GAP_EVENT_DISCONNECT";
case BLE_GAP_EVENT_CONN_UPDATE: //3
return "BLE_GAP_EVENT_CONN_UPDATE";
case BLE_GAP_EVENT_CONN_UPDATE_REQ: //4
return "BLE_GAP_EVENT_CONN_UPDATE_REQ";
case BLE_GAP_EVENT_L2CAP_UPDATE_REQ: //5
return "BLE_GAP_EVENT_L2CAP_UPDATE_REQ";
case BLE_GAP_EVENT_TERM_FAILURE: //6
return "BLE_GAP_EVENT_TERM_FAILURE";
case BLE_GAP_EVENT_DISC: //7
return "BLE_GAP_EVENT_DISC";
case BLE_GAP_EVENT_DISC_COMPLETE: //8
return "BLE_GAP_EVENT_DISC_COMPLETE";
case BLE_GAP_EVENT_ADV_COMPLETE: //9
return "BLE_GAP_EVENT_ADV_COMPLETE";
case BLE_GAP_EVENT_ENC_CHANGE: //10
return "BLE_GAP_EVENT_ENC_CHANGE";
case BLE_GAP_EVENT_PASSKEY_ACTION : //11
return "BLE_GAP_EVENT_PASSKEY_ACTION";
case BLE_GAP_EVENT_NOTIFY_RX: //12
return "BLE_GAP_EVENT_NOTIFY_RX";
case BLE_GAP_EVENT_NOTIFY_TX : //13
return "BLE_GAP_EVENT_NOTIFY_TX";
case BLE_GAP_EVENT_SUBSCRIBE : //14
return "BLE_GAP_EVENT_SUBSCRIBE";
case BLE_GAP_EVENT_MTU: //15
return "BLE_GAP_EVENT_MTU";
case BLE_GAP_EVENT_IDENTITY_RESOLVED: //16
return "BLE_GAP_EVENT_IDENTITY_RESOLVED";
case BLE_GAP_EVENT_REPEAT_PAIRING: //17
return "BLE_GAP_EVENT_REPEAT_PAIRING";
case BLE_GAP_EVENT_PHY_UPDATE_COMPLETE: //18
return "BLE_GAP_EVENT_PHY_UPDATE_COMPLETE";
case BLE_GAP_EVENT_EXT_DISC: //19
return "BLE_GAP_EVENT_EXT_DISC";
#ifdef BLE_GAP_EVENT_PERIODIC_SYNC // IDF 4.0 does not support these
case BLE_GAP_EVENT_PERIODIC_SYNC: //20
return "BLE_GAP_EVENT_PERIODIC_SYNC";
case BLE_GAP_EVENT_PERIODIC_REPORT: //21
return "BLE_GAP_EVENT_PERIODIC_REPORT";
case BLE_GAP_EVENT_PERIODIC_SYNC_LOST: //22
return "BLE_GAP_EVENT_PERIODIC_SYNC_LOST";
case BLE_GAP_EVENT_SCAN_REQ_RCVD: //23
return "BLE_GAP_EVENT_SCAN_REQ_RCVD";
#endif
default:
NIMBLE_LOGD(LOG_TAG, "gapEventToString: Unknown event type %d 0x%.2x", eventType, eventType);
return "Unknown event type";
}
#else // #if defined(CONFIG_NIMBLE_CPP_ENABLE_GAP_EVENT_CODE_TEXT)
(void)eventType;
return "";
#endif // #if defined(CONFIG_NIMBLE_CPP_ENABLE_GAP_EVENT_CODE_TEXT)
} // gapEventToString
#endif //CONFIG_BT_ENABLED

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lib/libesp32_div/NimBLE-Arduino/src/NimBLEUtils.h
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@ -1,51 +0,0 @@
/*
* NimBLEUtils.h
*
* Created: on Jan 25 2020
* Author H2zero
*
*/
#ifndef COMPONENTS_NIMBLEUTILS_H_
#define COMPONENTS_NIMBLEUTILS_H_
#include "nimconfig.h"
#if defined(CONFIG_BT_ENABLED)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "host/ble_gap.h"
#else
#include "nimble/nimble/host/include/host/ble_gap.h"
#endif
/**** FIX COMPILATION ****/
#undef min
#undef max
/**************************/
#include <string>
typedef struct {
void *pATT;
TaskHandle_t task;
int rc;
void *buf;
} ble_task_data_t;
/**
* @brief A BLE Utility class with methods for debugging and general purpose use.
*/
class NimBLEUtils {
public:
static void dumpGapEvent(ble_gap_event *event, void *arg);
static const char* gapEventToString(uint8_t eventType);
static char* buildHexData(uint8_t* target, const uint8_t* source, uint8_t length);
static const char* advTypeToString(uint8_t advType);
static const char* returnCodeToString(int rc);
static int checkConnParams(ble_gap_conn_params* params);
};
#endif // CONFIG_BT_ENABLED
#endif // COMPONENTS_NIMBLEUTILS_H_

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# Coding Style for Apache NimBLE
Apache NimBLE project is part of Apache Mynewt projct and follows its coding
style.
# Coding Style for Apache Mynewt Core
This document is meant to define the coding style for Apache Mynewt, and
all subprojects of Apache Mynewt. This covers C and Assembly coding
conventions, *only*. Other languages (such as Go), have their own
coding conventions.
## Headers
* All files that are newly written, should have the Apache License clause
at the top of them.
* For files that are copied from another source, but contain an Apache
compatible license, the original license header shall be maintained.
* For more information on applying the Apache license, the definitive
source is here: http://www.apache.org/dev/apply-license.html
* The Apache License clause for the top of files is as follows:
```no-highlight
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
```
## Whitespace and Braces
* Code must be indented to 4 spaces, tabs should not be used.
* Do not add whitespace at the end of a line.
* Put space after keywords (for, if, return, switch, while).
* for, else, if, while statements must have braces around their
code blocks, i.e., do:
```
if (x) {
assert(0);
} else {
assert(0);
}
```
Not:
```
if (x)
assert(0);
else
assert(0);
```
* Braces for statements must be on the same line as the statement. Good:
```
for (i = 0; i < 10; i++) {
if (i == 5) {
break;
} else {
continue;
}
}
```
Not:
```
for (i = 0; i < 10; i++)
{ <-- brace must be on same line as for
if (i == 5) {
break;
} <-- no new line between else
else {
continue;
}
}
```
* After a function declaration, the braces should be on a newline, i.e. do:
```
static void *
function(int var1, int var2)
{
```
not:
```
static void *
function(int var1, int var2) {
```
## Line Length and Wrap
* Line length should never exceed 79 columns.
* When you have to wrap a long statement, put the operator at the end of the
line. i.e.:
```
if (x &&
y == 10 &&
b)
```
Not:
```
if (x
&& y == 10
&& b)
```
## Comments
* No C++ style comments allowed.
* When using a single line comment, put it above the line of code that you
intend to comment, i.e., do:
```
/* check variable */
if (a) {
```
Not:
```
if (a) { /* check variable */
```
* All public APIs should be commented with Doxygen style comments describing
purpose, parameters and return values. Private APIs need not be documented.
## Header files
* Header files must contain the following structure:
* Apache License (see above)
* ```#ifdef``` aliasing, to prevent multiple includes
* ```#include``` directives for other required header files
* ```#ifdef __cplusplus``` wrappers to maintain C++ friendly APIs
* Contents of the header file
* ```#ifdef``` aliasing, shall be in the following format, where
the package name is "os" and the file name is "callout.h":
```no-highlight
#ifndef _OS_CALLOUT_H
#define _OS_CALLOUT_H
```
* ```#include``` directives must happen prior to the cplusplus
wrapper.
* The cplusplus wrapper must have the following format, and precedes
any contents of the header file:
```no-highlight
#ifdef __cplusplus
#extern "C" {
##endif
```
## Naming
* Names of functions, structures and variables must be in all lowercase.
* Names should be as short as possible, but no shorter.
* Globally visible names must be prefixed with the name of the module,
followed by the '_' character, i.e.:
```
os_callout_init(&c)
```
Not:
```
callout_init(c)
```
## Functions
* No spaces after function names when calling a function, i.e, do:
```
rc = function(a)
```
Not:
```
rc = function (a)
```
* Arguments to function calls should have spaces between the comma, i.e. do:
```
rc = function(a, b)
```
Not:
```
rc = function(a,b)
```
* The function type must be on a line by itself preceding the function, i.e. do:
```
static void *
function(int var1, int var2)
{
```
Not:
```
static void *function(int var1, int var2)
{
```
* In general, for functions that return values that denote success or error, 0
shall be success, and non-zero shall be the failure code.
## Variables and Macros
* Do not use typedefs for structures. This makes it impossible for
applications to use pointers to those structures opaquely.
* typedef may be used for non-structure types, where it is beneficial to
hide or alias the underlying type used (e.g. ```os_time_t```.) Indicate
typedefs by applying the ```_t``` marker to them.
* Place all function-local variable definitions at the top of the function body, before any statements.
## Compiler Directives
* Code must compile cleanly with -Wall enabled.

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Apache License
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6. Trademarks. This License does not grant permission to use the trade
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
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you may not use this file except in compliance with the License.
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See the License for the specific language governing permissions and
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This product bundles queue.h 8.5, which is available under the "3-clause BSD"
license. For details, see porting/nimble/include/os/queue.h
This product partly derives from FreeBSD, which is available under the
"3-clause BSD" license. For details, see:
* porting/nimble/src/os_mbuf.c
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This product bundles tinycrypt, which is available under the "3-clause BSD"
license. For details, and bundled files see:
* ext/tinycrypt/LICENSE

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Apache Mynewt NimBLE
Copyright 2015-2020 The Apache Software Foundation
Modifications Copyright 2017-2020 Espressif Systems (Shanghai) CO., LTD.
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).
Portions of this software were developed at
Runtime Inc, copyright 2015.

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<!--
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
-->
<img src="http://mynewt.apache.org/img/logo.svg" width="250" alt="Apache Mynewt">
## Overview
Apache NimBLE is an open-source Bluetooth 5.1 stack (both Host & Controller)
that completely replaces the proprietary SoftDevice on Nordic chipsets. It is
part of [Apache Mynewt project](https://github.com/apache/mynewt-core).
Features highlight:
- Support for 251 byte packet size
- Support for all 4 roles concurrently - Broadcaster, Observer, Peripheral and Central
- Support for up to 32 simultaneous connections.
- Legacy and SC (secure connections) SMP support (pairing and bonding).
- Advertising Extensions.
- Periodic Advertising.
- Coded (aka Long Range) and 2M PHYs.
- Bluetooth Mesh.
## Supported hardware
Controller supports Nordic nRF51 and nRF52 chipsets. Host runs on any board
and architecture [supported](https://github.com/apache/mynewt-core#overview)
by Apache Mynewt OS.
## Browsing
If you are browsing around the source tree, and want to see some of the
major functional chunks, here are a few pointers:
- nimble/controller: Contains code for controller including Link Layer and HCI implementation
([controller](https://github.com/apache/mynewt-nimble/tree/master/nimble/controller))
- nimble/drivers: Contains drivers for supported radio transceivers (Nordic nRF51 and nRF52)
([drivers](https://github.com/apache/mynewt-nimble/tree/master/nimble/drivers))
- nimble/host: Contains code for host subsystem. This includes protocols like
L2CAP and ATT, support for HCI commands and events, Generic Access Profile (GAP),
Generic Attribute Profile (GATT) and Security Manager (SM).
([host](https://github.com/apache/mynewt-nimble/tree/master/nimble/host))
- nimble/host/mesh: Contains code for Bluetooth Mesh subsystem.
([mesh](https://github.com/apache/mynewt-nimble/tree/master/nimble/host/mesh))
- nimble/transport: Contains code for supported transport protocols between host
and controller. This includes UART, emSPI and RAM (used in combined build when
host and controller run on same CPU)
([transport](https://github.com/apache/mynewt-nimble/tree/master/nimble/transport))
- porting: Contains implementation of NimBLE Porting Layer (NPL) for supported
operating systems
([porting](https://github.com/apache/mynewt-nimble/tree/master/porting))
- ext: Contains external libraries used by NimBLE. Those are used if not
provided by OS
([ext](https://github.com/apache/mynewt-nimble/tree/master/ext))
- kernel: Contains the core of the RTOS ([kernel/os](https://github.com/apache/mynewt-core/tree/master/kernel/os))
## Sample Applications
There are also some sample applications that show how to Apache Mynewt NimBLE
stack. These sample applications are located in the `apps/` directory of
Apache Mynewt [repo](https://github.com/apache/mynewt-core). Some examples:
* [blecent](https://github.com/apache/mynewt-nimble/tree/master/apps/blecent):
A basic central device with no user interface. This application scans for
a peripheral that supports the alert notification service (ANS). Upon
discovering such a peripheral, blecent connects and performs a characteristic
read, characteristic write, and notification subscription.
* [blehci](https://github.com/apache/mynewt-nimble/tree/master/apps/blehci):
Implements a BLE controller-only application. A separate host-only
implementation, such as Linux's BlueZ, can interface with this application via
HCI over UART.
* [bleprph](https://github.com/apache/mynewt-nimble/tree/master/apps/bleprph): An
implementation of a minimal BLE peripheral.
* [btshell](https://github.com/apache/mynewt-nimble/tree/master/apps/btshell): A
shell-like application allowing to configure and use most of NimBLE
functionality from command line.
* [bleuart](https://github.com/apache/mynewt-core/tree/master/apps/bleuart):
Implements a simple BLE peripheral that supports the Nordic
UART / Serial Port Emulation service
(https://developer.nordicsemi.com/nRF5_SDK/nRF51_SDK_v8.x.x/doc/8.0.0/s110/html/a00072.html).
# Getting Help
If you are having trouble using or contributing to Apache Mynewt NimBLE, or just
want to talk to a human about what you're working on, you can contact us via the
[developers mailing list](mailto:dev@mynewt.apache.org).
Although not a formal channel, you can also find a number of core developers
on the #mynewt channel on Freenode IRC or #general channel on [Mynewt Slack](https://mynewt.slack.com/join/shared_invite/enQtNjA1MTg0NzgyNzg3LTcyMmZiOGQzOGMxM2U4ODFmMTIwNjNmYTE5Y2UwYjQwZWIxNTE0MTUzY2JmMTEzOWFjYWZkNGM0YmM4MzAxNWQ)
Also, be sure to checkout the [Frequently Asked Questions](https://mynewt.apache.org/faq/answers)
for some help troubleshooting first.
# Contributing
Anybody who works with Apache Mynewt can be a contributing member of the
community that develops and deploys it. The process of releasing an operating
system for microcontrollers is never done: and we welcome your contributions
to that effort.
More information can be found at the Community section of the Apache Mynewt
website, located [here](https://mynewt.apache.org/community).
## Pull Requests
Apache Mynewt welcomes pull request via Github. Discussions are done on Github,
but depending on the topic, can also be relayed to the official Apache Mynewt
developer mailing list dev@mynewt.apache.org.
If you are suggesting a new feature, please email the developer list directly,
with a description of the feature you are planning to work on.
## Filing Bugs
Bugs can be filed on the
[Apache Mynewt NimBLE Issues](https://github.com/apache/mynewt-nimble/issues).
Please label the issue as a "Bug".
Where possible, please include a self-contained reproduction case!
## Feature Requests
Feature requests should also be filed on the
[Apache Mynewt NimBLE Bug Tracker](https://github.com/apache/mynewt-nimble/issues).
Please label the issue as a "Feature" or "Enhancement" depending on the scope.
## Writing Tests
We love getting newt tests! Apache Mynewt is a huge undertaking, and improving
code coverage is a win for every Apache Mynewt user.
<!--
TODO
## Writing Documentation
Contributing to documentation (in addition to writing tests), is a great way
to get involved with the Apache Mynewt project.
The Mynewt NimBLE documentation is found in [/docs](/docs).
-->
# License
The code in this repository is all under either the Apache 2 license, or a
license compatible with the Apache 2 license. See the LICENSE file for more
information.

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# RELEASE NOTES
24 March 2021 - Apache NimBLE v1.4.0
For full release notes, please visit the
[Apache Mynewt Wiki](https://cwiki.apache.org/confluence/display/MYNEWT/Release+Notes).
Apache NimBLE is an open-source Bluetooth 5.1 stack (both Host & Controller) that completely
replaces the proprietary SoftDevice on Nordic chipsets.
New features in this version of NimBLE include:
* Support for PHY on Dialog Configurable MAC (CMAC)
* Support for PHY on Nordic nRF5340
* Support for Apache NuttX port of NimBLE
* Controller-to-host flow control support
* Support for USB transport
* Various bugfixes
If working on next-generation RTOS and Bluetooth protocol stack
sounds exciting to you, get in touch, by sending a mail to the Apache Mynewt
Developer's list, dev@mynewt.apache.org.

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#ifndef __CONSOLE_H__
#define __CONSOLE_H__
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
#define console_printf(_fmt, ...) printf(_fmt, ##__VA_ARGS__)
#ifdef __cplusplus
}
#endif
#endif /* __CONSOLE_H__ */

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// Copyright 2016-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_COMPILER_H
#define __ESP_COMPILER_H
/*
* The likely and unlikely macro pairs:
* These macros are useful to place when application
* knows the majority ocurrence of a decision paths,
* placing one of these macros can hint the compiler
* to reorder instructions producing more optimized
* code.
*/
#if (CONFIG_COMPILER_OPTIMIZATION_PERF)
#ifndef likely
#define likely(x) __builtin_expect(!!(x), 1)
#endif
#ifndef unlikely
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif
#else
#ifndef likely
#define likely(x) (x)
#endif
#ifndef unlikely
#define unlikely(x) (x)
#endif
#endif
/*
* Utility macros used for designated initializers, which work differently
* in C99 and C++ standards mainly for aggregate types.
* The member separator, comma, is already part of the macro, please omit the trailing comma.
* Usage example:
* struct config_t { char* pchr; char arr[SIZE]; } config = {
* ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(pchr)
* ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(arr, "Value")
* };
*/
#ifdef __cplusplus
#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(member, value) { .member = value },
#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(member) .member = { },
#else
#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_STR(member, value) .member = value,
#define ESP_COMPILER_DESIGNATED_INIT_AGGREGATE_TYPE_EMPTY(member)
#endif
#endif

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/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifdef ESP_PLATFORM
#ifndef __ESP_NIMBLE_HCI_H__
#define __ESP_NIMBLE_HCI_H__
#include "nimble/nimble/include/nimble/ble_hci_trans.h"
#ifdef __cplusplus
extern "C" {
#endif
#define BLE_HCI_UART_H4_NONE 0x00
#define BLE_HCI_UART_H4_CMD 0x01
#define BLE_HCI_UART_H4_ACL 0x02
#define BLE_HCI_UART_H4_SCO 0x03
#define BLE_HCI_UART_H4_EVT 0x04
/**
* @brief Initialize VHCI transport layer between NimBLE Host and
* ESP Bluetooth controller
*
* This function initializes the transport buffers to be exchanged
* between NimBLE host and ESP controller. It also registers required
* host callbacks with the controller.
*
* @return
* - ESP_OK if the initialization is successful
* - Appropriate error code from esp_err_t in case of an error
*/
esp_err_t esp_nimble_hci_init(void);
/**
* @brief Initialize ESP Bluetooth controller(link layer) and VHCI transport
* layer between NimBLE Host and ESP Bluetooth controller
*
* This function initializes ESP controller in BLE only mode and the
* transport buffers to be exchanged between NimBLE host and ESP controller.
* It also registers required host callbacks with the controller.
*
* Below is the sequence of APIs to be called to init/enable NimBLE host and ESP controller:
*
* @code{c}
* void ble_host_task(void *param)
* {
* nimble_port_run(); //This function will return only when nimble_port_stop() is executed.
* nimble_port_freertos_deinit();
* }
*
* int ret = esp_nimble_hci_and_controller_init();
* if (ret != ESP_OK) {
ESP_LOGE(TAG, "esp_nimble_hci_and_controller_init() failed with error: %d", ret);
* return;
* }
*
* nimble_port_init();
*
* //Initialize the NimBLE Host configuration
*
* nimble_port_freertos_init(ble_host_task);
* @endcode
*
* nimble_port_freertos_init() is an optional call that creates a new task in which the NimBLE
* host will run. The task function should have a call to nimble_port_run(). If a separate task
* is not required, calling nimble_port_run() will run the NimBLE host in the current task.
*
* @return
* - ESP_OK if the initialization is successful
* - Appropriate error code from esp_err_t in case of an error
*/
esp_err_t esp_nimble_hci_and_controller_init(void);
/**
* @brief Deinitialize VHCI transport layer between NimBLE Host and
* ESP Bluetooth controller
*
* @note This function should be called after the NimBLE host is deinitialized.
*
* @return
* - ESP_OK if the deinitialization is successful
* - Appropriate error codes from esp_err_t in case of an error
*/
esp_err_t esp_nimble_hci_deinit(void);
/**
* @brief Deinitialize VHCI transport layer between NimBLE Host and
* ESP Bluetooth controller and disable and deinitialize the controller
*
* @note This function should not be executed in the context of Bluetooth host task.
*
* @note This function should be called after the NimBLE host is deinitialized.
*
* Below is the sequence of APIs to be called to disable/deinit NimBLE host and ESP controller:
*
* @code{c}
* int ret = nimble_port_stop();
* if (ret == 0) {
* nimble_port_deinit();
*
* ret = esp_nimble_hci_and_controller_deinit();
* if (ret != ESP_OK) {
ESP_LOGE(TAG, "esp_nimble_hci_and_controller_deinit() failed with error: %d", ret);
* }
* }
* @endcode
*
* If nimble_port_freertos_init() is used during initialization, then
* nimble_port_freertos_deinit() should be called in the host task after nimble_port_run().
*
* @return
* - ESP_OK if the deinitialization is successful
* - Appropriate error codes from esp_err_t in case of an error
*/
esp_err_t esp_nimble_hci_and_controller_deinit(void);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_NIMBLE_HCI_H__ */
#endif

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lib/libesp32_div/NimBLE-Arduino/src/nimble/esp_port/esp-hci/src/esp_nimble_hci.c
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@ -1,585 +0,0 @@
/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifdef ESP_PLATFORM
#include <assert.h>
#include "nimble/porting/nimble/include/sysinit/sysinit.h"
#include "nimble/nimble/include/nimble/hci_common.h"
#include "nimble/nimble/host/include/host/ble_hs.h"
#include "nimble/porting/nimble/include/nimble/nimble_port.h"
#include "nimble/porting/npl/freertos/include/nimble/nimble_port_freertos.h"
#include "../include/esp_nimble_hci.h"
#include "../../port/include/esp_nimble_mem.h"
#include <esp_bt.h>
#include <freertos/semphr.h>
#include "../include/esp_compiler.h"
/* IPC is used to improve performance when calls come from a processor not running the NimBLE stack */
/* but does not exist for solo */
#ifndef CONFIG_FREERTOS_UNICORE
#include "esp_ipc.h"
#endif
#define NIMBLE_VHCI_TIMEOUT_MS 2000
#define BLE_HCI_EVENT_HDR_LEN (2)
#define BLE_HCI_CMD_HDR_LEN (3)
static ble_hci_trans_rx_cmd_fn *ble_hci_rx_cmd_hs_cb;
static void *ble_hci_rx_cmd_hs_arg;
static ble_hci_trans_rx_acl_fn *ble_hci_rx_acl_hs_cb;
static void *ble_hci_rx_acl_hs_arg;
static struct os_mbuf_pool ble_hci_acl_mbuf_pool;
static struct os_mempool_ext ble_hci_acl_pool;
/*
* The MBUF payload size must accommodate the HCI data header size plus the
* maximum ACL data packet length. The ACL block size is the size of the
* mbufs we will allocate.
*/
#define ACL_BLOCK_SIZE OS_ALIGN(MYNEWT_VAL(BLE_ACL_BUF_SIZE) \
+ BLE_MBUF_MEMBLOCK_OVERHEAD \
+ BLE_HCI_DATA_HDR_SZ, OS_ALIGNMENT)
static os_membuf_t *ble_hci_acl_buf;
static struct os_mempool ble_hci_cmd_pool;
static os_membuf_t *ble_hci_cmd_buf;
static struct os_mempool ble_hci_evt_hi_pool;
static os_membuf_t *ble_hci_evt_hi_buf;
static struct os_mempool ble_hci_evt_lo_pool;
static os_membuf_t *ble_hci_evt_lo_buf;
static SemaphoreHandle_t vhci_send_sem;
const static char *TAG = "NimBLE";
int os_msys_buf_alloc(void);
void os_msys_buf_free(void);
void ble_hci_trans_cfg_hs(ble_hci_trans_rx_cmd_fn *cmd_cb,
void *cmd_arg,
ble_hci_trans_rx_acl_fn *acl_cb,
void *acl_arg)
{
ble_hci_rx_cmd_hs_cb = cmd_cb;
ble_hci_rx_cmd_hs_arg = cmd_arg;
ble_hci_rx_acl_hs_cb = acl_cb;
ble_hci_rx_acl_hs_arg = acl_arg;
}
/* Added; Called from the core NimBLE is running on, not used for unicore */
#ifndef CONFIG_FREERTOS_UNICORE
void ble_hci_trans_hs_cmd_tx_on_core(void *arg)
{
// Ugly but necessary as the arduino core does not provide enough IPC stack for variables.
esp_vhci_host_send_packet((uint8_t*)arg, *((uint8_t*)arg + 3) + 1 + BLE_HCI_CMD_HDR_LEN);
}
#endif
/* Modified to use ipc calls in arduino to correct performance issues */
int ble_hci_trans_hs_cmd_tx(uint8_t *cmd)
{
uint16_t len;
uint8_t rc = 0;
assert(cmd != NULL);
*cmd = BLE_HCI_UART_H4_CMD;
len = BLE_HCI_CMD_HDR_LEN + cmd[3] + 1;
if (!esp_vhci_host_check_send_available()) {
ESP_LOGD(TAG, "Controller not ready to receive packets");
}
if (xSemaphoreTake(vhci_send_sem, NIMBLE_VHCI_TIMEOUT_MS / portTICK_PERIOD_MS) == pdTRUE) {
/* esp_ipc_call_blocking does not exist for solo */
#ifndef CONFIG_FREERTOS_UNICORE
if (xPortGetCoreID() != CONFIG_BT_NIMBLE_PINNED_TO_CORE && !xPortInIsrContext()) {
esp_ipc_call_blocking(CONFIG_BT_NIMBLE_PINNED_TO_CORE,
ble_hci_trans_hs_cmd_tx_on_core, cmd);
} else {
esp_vhci_host_send_packet(cmd, len);
}
#else /* Unicore */
esp_vhci_host_send_packet(cmd, len);
#endif
} else {
rc = BLE_HS_ETIMEOUT_HCI;
}
ble_hci_trans_buf_free(cmd);
return rc;
}
int ble_hci_trans_ll_evt_tx(uint8_t *hci_ev)
{
int rc = ESP_FAIL;
if (ble_hci_rx_cmd_hs_cb) {
rc = ble_hci_rx_cmd_hs_cb(hci_ev, ble_hci_rx_cmd_hs_arg);
}
return rc;
}
/* Added; Called from the core NimBLE is running on, not used for unicore */
#ifndef CONFIG_FREERTOS_UNICORE
void ble_hci_trans_hs_acl_tx_on_core(void *arg)
{
// Ugly but necessary as the arduino core does not provide enough IPC stack for variables.
esp_vhci_host_send_packet((uint8_t*)arg + 2, *(uint16_t*)arg);
}
#endif
/* Modified to use ipc calls in arduino to correct performance issues */
int ble_hci_trans_hs_acl_tx(struct os_mbuf *om)
{
uint16_t len = 0;
uint8_t data[MYNEWT_VAL(BLE_ACL_BUF_SIZE) + 3], rc = 0;
#ifndef CONFIG_FREERTOS_UNICORE
bool tx_using_nimble_core = 0;
#endif
/* If this packet is zero length, just free it */
if (OS_MBUF_PKTLEN(om) == 0) {
os_mbuf_free_chain(om);
return 0;
}
if (!esp_vhci_host_check_send_available()) {
ESP_LOGD(TAG, "Controller not ready to receive packets");
}
len = 1 + OS_MBUF_PKTLEN(om);
/* Don't check core ID if unicore */
#ifndef CONFIG_FREERTOS_UNICORE
tx_using_nimble_core = xPortGetCoreID() != CONFIG_BT_NIMBLE_PINNED_TO_CORE;
if (tx_using_nimble_core && !xPortInIsrContext()) {
data[0] = len;
data[1] = (len >> 8);
data[2] = BLE_HCI_UART_H4_ACL;
os_mbuf_copydata(om, 0, OS_MBUF_PKTLEN(om), &data[3]);
} else {
data[0] = BLE_HCI_UART_H4_ACL;
os_mbuf_copydata(om, 0, OS_MBUF_PKTLEN(om), &data[1]);
}
#else /* Unicore */
data[0] = BLE_HCI_UART_H4_ACL;
os_mbuf_copydata(om, 0, OS_MBUF_PKTLEN(om), &data[1]);
#endif
if (xSemaphoreTake(vhci_send_sem, NIMBLE_VHCI_TIMEOUT_MS / portTICK_PERIOD_MS) == pdTRUE) {
/* esp_ipc_call_blocking does not exist for solo */
#ifndef CONFIG_FREERTOS_UNICORE
if (tx_using_nimble_core && !xPortInIsrContext()) {
esp_ipc_call_blocking(CONFIG_BT_NIMBLE_PINNED_TO_CORE,
ble_hci_trans_hs_acl_tx_on_core, data);
} else {
esp_vhci_host_send_packet(data, len);
}
#else /* Unicore */
esp_vhci_host_send_packet(data, len);
#endif
} else {
rc = BLE_HS_ETIMEOUT_HCI;
}
os_mbuf_free_chain(om);
return rc;
}
int ble_hci_trans_ll_acl_tx(struct os_mbuf *om)
{
int rc = ESP_FAIL;
if (ble_hci_rx_acl_hs_cb) {
rc = ble_hci_rx_acl_hs_cb(om, ble_hci_rx_acl_hs_arg);
}
return rc;
}
uint8_t *ble_hci_trans_buf_alloc(int type)
{
uint8_t *buf;
switch (type) {
case BLE_HCI_TRANS_BUF_CMD:
buf = os_memblock_get(&ble_hci_cmd_pool);
break;
case BLE_HCI_TRANS_BUF_EVT_HI:
buf = os_memblock_get(&ble_hci_evt_hi_pool);
if (buf == NULL) {
/* If no high-priority event buffers remain, try to grab a
* low-priority one.
*/
buf = ble_hci_trans_buf_alloc(BLE_HCI_TRANS_BUF_EVT_LO);
}
break;
case BLE_HCI_TRANS_BUF_EVT_LO:
buf = os_memblock_get(&ble_hci_evt_lo_pool);
break;
default:
assert(0);
buf = NULL;
}
return buf;
}
void ble_hci_trans_buf_free(uint8_t *buf)
{
int rc;
/* XXX: this may look a bit odd, but the controller uses the command
* buffer to send back the command complete/status as an immediate
* response to the command. This was done to insure that the controller
* could always send back one of these events when a command was received.
* Thus, we check to see which pool the buffer came from so we can free
* it to the appropriate pool
*/
if (os_memblock_from(&ble_hci_evt_hi_pool, buf)) {
rc = os_memblock_put(&ble_hci_evt_hi_pool, buf);
assert(rc == 0);
} else if (os_memblock_from(&ble_hci_evt_lo_pool, buf)) {
rc = os_memblock_put(&ble_hci_evt_lo_pool, buf);
assert(rc == 0);
} else {
assert(os_memblock_from(&ble_hci_cmd_pool, buf));
rc = os_memblock_put(&ble_hci_cmd_pool, buf);
assert(rc == 0);
}
}
/**
* Unsupported; the RAM transport does not have a dedicated ACL data packet
* pool.
*/
int ble_hci_trans_set_acl_free_cb(os_mempool_put_fn *cb, void *arg)
{
ble_hci_acl_pool.mpe_put_cb = cb;
ble_hci_acl_pool.mpe_put_arg = arg;
return 0;
}
int ble_hci_trans_reset(void)
{
/* No work to do. All allocated buffers are owned by the host or
* controller, and they will get freed by their owners.
*/
return 0;
}
/**
* Allocates a buffer (mbuf) for ACL operation.
*
* @return The allocated buffer on success;
* NULL on buffer exhaustion.
*/
static struct os_mbuf *ble_hci_trans_acl_buf_alloc(void)
{
struct os_mbuf *m;
uint8_t usrhdr_len;
#if MYNEWT_VAL(BLE_DEVICE)
usrhdr_len = sizeof(struct ble_mbuf_hdr);
#elif MYNEWT_VAL(BLE_HS_FLOW_CTRL)
usrhdr_len = BLE_MBUF_HS_HDR_LEN;
#else
usrhdr_len = 0;
#endif
m = os_mbuf_get_pkthdr(&ble_hci_acl_mbuf_pool, usrhdr_len);
return m;
}
static void ble_hci_rx_acl(uint8_t *data, uint16_t len)
{
struct os_mbuf *m;
int rc;
int sr;
if (len < BLE_HCI_DATA_HDR_SZ || len > MYNEWT_VAL(BLE_ACL_BUF_SIZE)) {
return;
}
m = ble_hci_trans_acl_buf_alloc();
if (!m) {
ESP_LOGE(TAG, "%s failed to allocate ACL buffers; increase ACL_BUF_COUNT", __func__);
return;
}
if ((rc = os_mbuf_append(m, data, len)) != 0) {
ESP_LOGE(TAG, "%s failed to os_mbuf_append; rc = %d", __func__, rc);
os_mbuf_free_chain(m);
return;
}
OS_ENTER_CRITICAL(sr);
if (ble_hci_rx_acl_hs_cb) {
ble_hci_rx_acl_hs_cb(m, NULL);
}
OS_EXIT_CRITICAL(sr);
}
static void ble_hci_transport_init(void)
{
int rc;
/* Ensure this function only gets called by sysinit. */
SYSINIT_ASSERT_ACTIVE();
rc = os_mempool_ext_init(&ble_hci_acl_pool,
MYNEWT_VAL(BLE_ACL_BUF_COUNT),
ACL_BLOCK_SIZE,
ble_hci_acl_buf,
"ble_hci_acl_pool");
SYSINIT_PANIC_ASSERT(rc == 0);
rc = os_mbuf_pool_init(&ble_hci_acl_mbuf_pool,
&ble_hci_acl_pool.mpe_mp,
ACL_BLOCK_SIZE,
MYNEWT_VAL(BLE_ACL_BUF_COUNT));
SYSINIT_PANIC_ASSERT(rc == 0);
/*
* Create memory pool of HCI command buffers. NOTE: we currently dont
* allow this to be configured. The controller will only allow one
* outstanding command. We decided to keep this a pool in case we allow
* allow the controller to handle more than one outstanding command.
*/
rc = os_mempool_init(&ble_hci_cmd_pool,
1,
BLE_HCI_TRANS_CMD_SZ,
ble_hci_cmd_buf,
"ble_hci_cmd_pool");
SYSINIT_PANIC_ASSERT(rc == 0);
rc = os_mempool_init(&ble_hci_evt_hi_pool,
MYNEWT_VAL(BLE_HCI_EVT_HI_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE),
ble_hci_evt_hi_buf,
"ble_hci_evt_hi_pool");
SYSINIT_PANIC_ASSERT(rc == 0);
rc = os_mempool_init(&ble_hci_evt_lo_pool,
MYNEWT_VAL(BLE_HCI_EVT_LO_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE),
ble_hci_evt_lo_buf,
"ble_hci_evt_lo_pool");
SYSINIT_PANIC_ASSERT(rc == 0);
}
/*
* @brief: BT controller callback function, used to notify the upper layer that
* controller is ready to receive command
*/
static void controller_rcv_pkt_ready(void)
{
if (vhci_send_sem) {
xSemaphoreGive(vhci_send_sem);
}
}
/*
* @brief: BT controller callback function, to transfer data packet to the host
*/
static int host_rcv_pkt(uint8_t *data, uint16_t len)
{
if (data[0] == BLE_HCI_UART_H4_EVT) {
uint8_t *evbuf;
int totlen;
int rc;
totlen = BLE_HCI_EVENT_HDR_LEN + data[2];
assert(totlen <= UINT8_MAX + BLE_HCI_EVENT_HDR_LEN);
if (totlen > MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE)) {
ESP_LOGE(TAG, "Received HCI data length at host (%d) exceeds maximum configured HCI event buffer size (%d).",
totlen, MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE));
ble_hs_sched_reset(BLE_HS_ECONTROLLER);
return 0;
}
if (data[1] == BLE_HCI_EVCODE_HW_ERROR) {
assert(0);
}
/* Allocate LE Advertising Report Event from lo pool only */
if ((data[1] == BLE_HCI_EVCODE_LE_META) && (data[3] == BLE_HCI_LE_SUBEV_ADV_RPT)) {
evbuf = ble_hci_trans_buf_alloc(BLE_HCI_TRANS_BUF_EVT_LO);
/* Skip advertising report if we're out of memory */
if (!evbuf) {
return 0;
}
} else {
evbuf = ble_hci_trans_buf_alloc(BLE_HCI_TRANS_BUF_EVT_HI);
assert(evbuf != NULL);
}
memcpy(evbuf, &data[1], totlen);
rc = ble_hci_trans_ll_evt_tx(evbuf);
assert(rc == 0);
} else if (data[0] == BLE_HCI_UART_H4_ACL) {
ble_hci_rx_acl(data + 1, len - 1);
}
return 0;
}
static const esp_vhci_host_callback_t vhci_host_cb = {
.notify_host_send_available = controller_rcv_pkt_ready,
.notify_host_recv = host_rcv_pkt,
};
static void ble_buf_free(void)
{
os_msys_buf_free();
nimble_platform_mem_free(ble_hci_evt_hi_buf);
ble_hci_evt_hi_buf = NULL;
nimble_platform_mem_free(ble_hci_evt_lo_buf);
ble_hci_evt_lo_buf = NULL;
nimble_platform_mem_free(ble_hci_cmd_buf);
ble_hci_cmd_buf = NULL;
nimble_platform_mem_free(ble_hci_acl_buf);
ble_hci_acl_buf = NULL;
}
static esp_err_t ble_buf_alloc(void)
{
if (os_msys_buf_alloc()) {
return ESP_ERR_NO_MEM;
}
ble_hci_evt_hi_buf = (os_membuf_t *) nimble_platform_mem_calloc(1,
(sizeof(os_membuf_t) * OS_MEMPOOL_SIZE(MYNEWT_VAL(BLE_HCI_EVT_HI_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE))));
ble_hci_evt_lo_buf = (os_membuf_t *) nimble_platform_mem_calloc(1,
(sizeof(os_membuf_t) * OS_MEMPOOL_SIZE(MYNEWT_VAL(BLE_HCI_EVT_LO_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE))));
ble_hci_cmd_buf = (os_membuf_t *) nimble_platform_mem_calloc(1,
(sizeof(os_membuf_t) * OS_MEMPOOL_SIZE(1, BLE_HCI_TRANS_CMD_SZ)));
ble_hci_acl_buf = (os_membuf_t *) nimble_platform_mem_calloc(1,
(sizeof(os_membuf_t) * OS_MEMPOOL_SIZE(MYNEWT_VAL(BLE_ACL_BUF_COUNT),
ACL_BLOCK_SIZE)));
if (!ble_hci_evt_hi_buf || !ble_hci_evt_lo_buf || !ble_hci_cmd_buf || !ble_hci_acl_buf) {
ble_buf_free();
return ESP_ERR_NO_MEM;
}
return ESP_OK;
}
esp_err_t esp_nimble_hci_init(void)
{
esp_err_t ret;
ret = ble_buf_alloc();
if (ret != ESP_OK) {
goto err;
}
if ((ret = esp_vhci_host_register_callback(&vhci_host_cb)) != ESP_OK) {
goto err;
}
ble_hci_transport_init();
vhci_send_sem = xSemaphoreCreateBinary();
if (vhci_send_sem == NULL) {
ret = ESP_ERR_NO_MEM;
goto err;
}
xSemaphoreGive(vhci_send_sem);
return ret;
err:
ble_buf_free();
return ret;
}
esp_err_t esp_nimble_hci_and_controller_init(void)
{
esp_err_t ret;
esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
if ((ret = esp_bt_controller_init(&bt_cfg)) != ESP_OK) {
return ret;
}
if ((ret = esp_bt_controller_enable(ESP_BT_MODE_BLE)) != ESP_OK) {
return ret;
}
return esp_nimble_hci_init();
}
static esp_err_t ble_hci_transport_deinit(void)
{
int ret = 0;
ret += os_mempool_clear(&ble_hci_evt_lo_pool);
ret += os_mempool_clear(&ble_hci_evt_hi_pool);
ret += os_mempool_clear(&ble_hci_cmd_pool);
ret += os_mempool_ext_clear(&ble_hci_acl_pool);
if (ret) {
return ESP_FAIL;
} else {
return ESP_OK;
}
}
esp_err_t esp_nimble_hci_deinit(void)
{
if (vhci_send_sem) {
/* Dummy take & give semaphore before deleting */
xSemaphoreTake(vhci_send_sem, portMAX_DELAY);
xSemaphoreGive(vhci_send_sem);
vSemaphoreDelete(vhci_send_sem);
vhci_send_sem = NULL;
}
esp_err_t ret = ble_hci_transport_deinit();
if (ret != ESP_OK) {
return ret;
}
ble_buf_free();
return ESP_OK;
}
esp_err_t esp_nimble_hci_and_controller_deinit(void)
{
int ret;
ret = esp_nimble_hci_deinit();
if (ret != ESP_OK) {
return ret;
}
ret = esp_bt_controller_disable();
if (ret != ESP_OK) {
return ret;
}
ret = esp_bt_controller_deinit();
if (ret != ESP_OK) {
return ret;
}
return ESP_OK;
}
#endif

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lib/libesp32_div/NimBLE-Arduino/src/nimble/esp_port/port/include/esp_nimble_cfg.h
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lib/libesp32_div/NimBLE-Arduino/src/nimble/esp_port/port/include/esp_nimble_mem.h
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/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __ESP_NIMBLE_MEM_H__
#define __ESP_NIMBLE_MEM_H__
#include <stdlib.h>
#ifdef __cplusplus
extern "C" {
#endif
void *nimble_platform_mem_malloc(size_t size);
void *nimble_platform_mem_calloc(size_t n, size_t size);
void nimble_platform_mem_free(void *ptr);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_NIMBLE_MEM_H__ */

53
lib/libesp32_div/NimBLE-Arduino/src/nimble/esp_port/port/src/esp_nimble_mem.cpp
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@ -1,53 +0,0 @@
/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifdef ESP_PLATFORM
#include "esp_attr.h"
#include "esp_heap_caps.h"
#include "nimconfig.h"
#include "../include/esp_nimble_mem.h"
//Tasmota Patch
extern void *special_malloc(uint32_t size);
extern void *special_calloc(size_t num, size_t size);
extern "C" {
IRAM_ATTR void *nimble_platform_mem_malloc(size_t size)
{
return special_malloc((uint32_t)size);
// #ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
// return heap_caps_malloc(size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
// #elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
// return heap_caps_malloc(size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
// #elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
// return heap_caps_malloc_prefer(size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
// #else
// return malloc(size);
// #endif
}
IRAM_ATTR void *nimble_platform_mem_calloc(size_t n, size_t size)
{
return special_calloc(n,size);
// #ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
// return heap_caps_calloc(n, size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
// #elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
// return heap_caps_calloc(n, size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
// #elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
// return heap_caps_calloc_prefer(n, size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
// #else
// return calloc(n, size);
// #endif
}
IRAM_ATTR void nimble_platform_mem_free(void *ptr)
{
heap_caps_free(ptr);
}
} //extern "C"
#endif

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