Fix FUNC_COMMAND linked list command buffer corruption by shutter driver

CHANGELOG.md

@@ -10,7 +10,7 @@ All notable changes to this project will be documented in this file.
 - Support KNX for scripts (#22429)
 - Support deep sleep (standby) for VL53L0X (#22441)
 - Support for MS5837 pressure and temperature sensor (#22376)
-- Berry add I2C read16/write16 supporting Little Endian
+- Berry add I2C read16/write16 supporting Little Endian (#22448)
 
 ### Breaking Changed
 
@@ -24,6 +24,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 - ESP32-S3 UART output mode for Tx (#22426)
 - Mitsubishi Electric HVAC Standby Stage for MiElHVAC (#22430)
+- FUNC_COMMAND linked list command buffer corruption by shutter driver
 
 ### Removed
 

RELEASENOTES.md

@@ -137,6 +137,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 - Mitsubishi Electric HVAC Auto Clear Remote Temp for MiElHVAC [#22370](https://github.com/arendst/Tasmota/issues/22370)
 - SolaxX1 Meter mode [#22330](https://github.com/arendst/Tasmota/issues/22330)
 - BLE track devices with RPA [#22300](https://github.com/arendst/Tasmota/issues/22300)
+- Berry add I2C read16/write16 supporting Little Endian [#22448](https://github.com/arendst/Tasmota/issues/22448)
 - HASPmota `haspmota.get_pages()` to get the sorted list of pages [#22358](https://github.com/arendst/Tasmota/issues/22358)
 
 ### Breaking Changed
@@ -156,6 +157,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 - HASPmota support for page delete and object updates [#22311](https://github.com/arendst/Tasmota/issues/22311)
 
 ### Fixed
+- FUNC_COMMAND linked list command buffer corruption by shutter driver
 - Alexa Hue with multiple devices [#22383](https://github.com/arendst/Tasmota/issues/22383)
 - Mitsubishi Electric HVAC Standby Stage for MiElHVAC [#22430](https://github.com/arendst/Tasmota/issues/22430)
 - EQ3 TRV firmware version 1.46 fails if the default true is used in subscribe on the notify characteristic [#22328](https://github.com/arendst/Tasmota/issues/22328)

tasmota/tasmota_xdrv_driver/xdrv_27_esp32_shutter.ino

@@ -2293,6 +2293,7 @@ bool Xdrv27(uint32_t function)
   if (Settings->flag3.shutter_mode) {  // SetOption80 - Enable shutter support
     uint8_t  counter         = XdrvMailbox.index == 0 ? 1 : XdrvMailbox.index;
     uint8_t  counterend      = XdrvMailbox.index == 0 ? TasmotaGlobal.shutters_present : XdrvMailbox.index;
+    uint32_t rescue_index    = XdrvMailbox.index;
     int32_t  rescue_payload  = XdrvMailbox.payload;
     uint32_t rescue_data_len = XdrvMailbox.data_len;
     char stemp1[10];
@@ -2323,7 +2324,7 @@ bool Xdrv27(uint32_t function)
           XdrvMailbox.index    = i;
           XdrvMailbox.payload  = rescue_payload;
           XdrvMailbox.data_len = rescue_data_len;
-	  if (!ShutterSettings.version) {
+          if (!ShutterSettings.version) {
             ShutterSettingsLoad(0);
             ShutterSettings.shutter_startrelay[0] = 1;
             ShutterInit();
@@ -2395,13 +2396,16 @@ bool Xdrv27(uint32_t function)
       break;
 #ifdef USE_WEBSERVER
       case FUNC_WEB_SENSOR:
-        ShutterShow();
+//        ShutterShow();
         break;
 #endif  // USE_WEBSERVER
       case FUNC_ACTIVE:
         result = true;
         break;
     }
+    XdrvMailbox.index = rescue_index;
+    XdrvMailbox.payload = rescue_payload;
+    XdrvMailbox.data_len = rescue_data_len;
   }
   return result;
 }

tasmota/tasmota_xdrv_driver/xdrv_27_shutter.ino

@@ -1899,6 +1899,7 @@ bool Xdrv27(uint32_t function)
   if (Settings->flag3.shutter_mode) {  // SetOption80 - Enable shutter support
     uint8_t  counter = XdrvMailbox.index==0?1:XdrvMailbox.index;
     uint8_t  counterend = XdrvMailbox.index==0?TasmotaGlobal.shutters_present:XdrvMailbox.index;
+    uint32_t rescue_index    = XdrvMailbox.index;
     int32_t  rescue_payload  = XdrvMailbox.payload;
     uint32_t rescue_data_len = XdrvMailbox.data_len;
     char stemp1[10];
@@ -1922,13 +1923,6 @@ bool Xdrv27(uint32_t function)
           result = DecodeCommand(kShutterCommands, ShutterCommand);
         }
         break;
-        for (uint8_t i = counter; i <= counterend; i++) {
-          XdrvMailbox.index = i;
-          XdrvMailbox.payload = rescue_payload;
-          XdrvMailbox.data_len = rescue_data_len;
-          result = DecodeCommand(kShutterCommands, ShutterCommand);
-        }
-        break;
       case FUNC_JSON_APPEND:
         if (!sensor_data_reported) {
           sensor_data_reported = true;
@@ -1984,13 +1978,16 @@ bool Xdrv27(uint32_t function)
       break;
 #ifdef USE_WEBSERVER
       case FUNC_WEB_SENSOR:
-        ShutterShow();
+//        ShutterShow();
         break;
 #endif  // USE_WEBSERVER
       case FUNC_ACTIVE:
         result = true;
         break;
     }
+    XdrvMailbox.index = rescue_index;
+    XdrvMailbox.payload = rescue_payload;
+    XdrvMailbox.data_len = rescue_data_len;
   }
   return result;
 }