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James Tucker f4aad61e67 wgengine/monitor: ignore duplicate RTM_NEWADDRs
Ignoring the events at this layer is the simpler path for right now, a
broader change should follow to suppress irrelevant change events in a
higher layer so as to avoid related problems with other monitoring paths
on other platforms.  This approach may also carry a small risk that it
applies an at-most-once invariant low in the chain that could be assumed
otherwise higher in the code.

I adjusted the newAddrMessage type to include interface index rather
than a label, as labels are not always supplied, and in particular on my
test hosts they were consistently missing for ipv6 address messages.

I adjusted the newAddrMessage.Addr field to be populated from
Attributes.Address rather than Attributes.Local, as again for ipv6
.Local was always empty, and with ipv4 the .Address and .Local contained
the same contents in each of my test environments.

Update #4282

Signed-off-by: James Tucker <james@tailscale.com>
2022-04-11 14:35:19 -07:00
.bencher bencher: add config to suppress failures on benchmark regressions. 2021-10-01 16:16:02 -07:00
.github .github: Bump actions/checkout from 2 to 3 2022-03-22 16:07:00 -07:00
atomicfile atomicfile: don't Chmod on windows 2020-07-15 12:31:40 -07:00
chirp all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
client/tailscale client/tailscale, cmd/tailscale, localapi: add 'tailscale nc' 2022-03-24 10:28:53 -07:00
cmd cmd/tailscale: make web mode preserve URL scheme in Synology redirect 2022-04-08 06:18:13 -07:00
control control/controlbase: don't enforce a max protocol version at handshake time. 2022-04-07 17:55:29 -07:00
derp derp: add (*Server).IsClientConnectedForTest func. (#4331) 2022-03-30 10:50:50 -07:00
disco types/key: export constants for key size, not a method. 2021-10-29 17:39:04 -07:00
docs fix minor typo 2021-11-16 11:03:43 -08:00
envknob envknob: use the correct key when logging (#4319) 2022-03-29 14:04:12 -07:00
health net/dns: add health check for particular broken-ish Linux DNS config 2022-02-16 10:40:04 -08:00
hostinfo tsnet: set Hostinfo.Package to "tsnet" on use 2022-03-25 09:26:02 -07:00
internal/tooldeps util/deephash: move internal/deephash to util/deephash 2021-07-02 21:33:02 -07:00
ipn ipn/localapi: add endpoint to request id token 2022-04-05 14:48:45 -07:00
kube all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
log all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
logpolicy all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
logtail all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
metrics all: use testingutil.MinAllocsPerRun 2021-10-28 12:48:37 -07:00
net net/dns, net/dns/resolver, wgengine: refactor DNS request path (#4364) 2022-04-08 12:17:31 -07:00
packages/deb all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
paths cmd/tailscaled: default to userspace-networking mode on gokrazy, set paths 2022-03-01 20:34:45 -08:00
portlist envknob: add new package for all the strconv.ParseBool(os.Getenv(..)) 2022-01-24 11:51:23 -08:00
prober prober: used keyed initializer for LimitedReader. 2022-03-26 21:45:27 -07:00
safesocket safesocket: add ConnectionStrategy, provide control over fallbacks 2021-12-09 15:46:38 -08:00
scripts scripts: install gnupg only when apt-key is needed 2022-03-17 15:11:25 -07:00
smallzstd smallzstd: new package that constructs zstd small encoders/decoders. 2020-07-02 16:13:06 -07:00
ssh/tailssh go.mod, ssh/tailssh, tempfork/gliderlabs: bump x/crypto/ssh fork for NoClientAuthCallback 2022-03-29 18:17:34 -07:00
syncs syncs: use TryLock and TryRLock instead of unsafe 2022-03-17 10:57:41 -07:00
tailcfg ipn/localapi: add endpoint to request id token 2022-04-05 14:48:45 -07:00
tempfork go.mod, ssh/tailssh, tempfork/gliderlabs: bump x/crypto/ssh fork for NoClientAuthCallback 2022-03-29 18:17:34 -07:00
tool tool/go: add wrapper to download and use go.toolchain.rev go version. 2022-01-04 09:45:29 -08:00
tsconst net/interfaces/windows: update Tailscale interface detection logic to 2021-11-08 07:44:33 -08:00
tsnet tsnet: set Hostinfo.Package to "tsnet" on use 2022-03-25 09:26:02 -07:00
tstest tstest/integration/vms: test on stable nixos (21.11) 2022-04-11 12:54:56 -07:00
tstime tstime/mono: fix Before function comment 2022-03-05 15:05:57 -08:00
tsweb tsweb: add PrometheusVar, for vars that want to output varz themselves. 2022-03-21 12:33:18 -07:00
types tailcfg: add omitempty to all fields of Hostinfo (#4360) 2022-04-05 13:25:14 -07:00
util util/groupmember: remove redundant code (#4298) 2022-03-26 21:45:06 -07:00
version version: use Go 1.18's git stamping as default implementation 2022-03-16 14:53:51 -07:00
wf all: use any instead of interface{} 2022-03-17 11:35:09 -07:00
wgengine wgengine/monitor: ignore duplicate RTM_NEWADDRs 2022-04-11 14:35:19 -07:00
words words: more hamsters, less hampsters (#3938) 2022-02-14 15:15:30 -05:00
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 2021-12-03 17:56:02 -08:00
.gitignore Makefile: update make spk target to use the new go spk builder 2022-01-21 12:27:00 -08:00
AUTHORS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
CODE_OF_CONDUCT.md Add a code of conduct. 2020-02-10 22:16:30 -08:00
Dockerfile Dockerfile: require Go 1.18 2022-03-16 12:45:28 -07:00
Dockerfile.base Dockerfile.base: update to alpine:3.15 2022-01-07 07:33:25 -08:00
LICENSE LICENSE: Reformat for Github 2021-01-24 16:20:22 -08:00
Makefile Makefile: add tidy target 2022-03-21 11:06:13 -07:00
PATENTS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
README.md README.md: update current Go release 2022-03-16 12:45:28 -07:00
SECURITY.md Add a SECURITY.md for vulnerability reports. 2020-02-11 10:26:41 -08:00
VERSION.txt VERSION.txt: This is 1.23. 2022-02-23 15:51:28 -08:00
api.md api: update acl/validate data format (#4366) 2022-04-07 10:33:52 -07:00
build_dist.sh tool/go: add wrapper to download and use go.toolchain.rev go version. 2022-01-04 09:45:29 -08:00
build_docker.sh tool/go: add wrapper to download and use go.toolchain.rev go version. 2022-01-04 09:45:29 -08:00
go.mod go.mod: bump rtnetlink for address label encoding (#4386) 2022-04-08 14:17:53 -07:00
go.sum go.mod: bump rtnetlink for address label encoding (#4386) 2022-04-08 14:17:53 -07:00
go.toolchain.branch go.toolchain.branch: upgrade to Go 1.18 2022-03-16 12:45:28 -07:00
go.toolchain.rev go.toolchain.rev: pick up httptest race fix 2022-03-25 09:53:10 -07:00
pull-toolchain.sh go.toolchain.rev: add update script 2022-01-10 14:55:04 -08:00
shell.nix shell.nix: use tailscale-go for compilation 2022-04-08 14:10:50 -07:00
staticcheck.conf staticcheck.conf: remove unnecessary warning 2021-06-22 12:26:13 -07:00
version-embed.go go.toolchain.rev: add Go toolchain rev, tool to print it out 2022-01-03 11:56:27 -08:00

README.md

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains all the open source Tailscale client code and the tailscaled daemon and tailscale CLI tool. The tailscaled daemon runs on Linux, Windows and macOS, and to varying degrees on FreeBSD, OpenBSD, and Darwin. (The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.)

The Android app is at https://github.com/tailscale/tailscale-android

The Synology package is at https://github.com/tailscale/tailscale-synology

Using

We serve packages for a variety of distros at https://pkgs.tailscale.com .

Other clients

The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers that are not open source.

Building

go install tailscale.com/cmd/tailscale{,d}

If you're packaging Tailscale for distribution, use build_dist.sh instead, to burn commit IDs and version info into the binaries:

./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled

If your distro has conventions that preclude the use of build_dist.sh, please do the equivalent of what it does in your distro's way, so that bug reports contain useful version information.

We only guarantee to support the latest Go release and any Go beta or release candidate builds (currently Go 1.18) in module mode. It might work in earlier Go versions or in GOPATH mode, but we're making no effort to keep those working.

Bugs

Please file any issues about this code or the hosted service on the issue tracker.

Contributing

PRs welcome! But please file bugs. Commit messages should reference bugs.

We require Developer Certificate of Origin Signed-off-by lines in commits.

About Us

Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:

WireGuard is a registered trademark of Jason A. Donenfeld.