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The easiest, most secure way to use WireGuard and 2FA.
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Brad Fitzpatrick 5295e3e119 ipn/{ipnstate,ipnlocal}: add integer NodeID to PeerStatus 
In aa5da2e5f2 we made the IPN bus include deltas, including the
PeersRemoved, sending a slice of integer NodeIDs that were
removed. But when updating xcode, I realized there was no way to map
those integers to the stable node IDs used in other places.

I was consdering changing the just-added ipn.Notify.PeersRemoved from
an IntID to a string StableID, but then it doesn't match the MapResponse
wire protocol, which we've tried to match so far.

Instead, just add the integer ID as well. Callers can use whichever
world they want, having both. It's a little regrettable that we still
have two worlds of IDs, but oh well. Neither is really suitable to a
hypothetical future fully federated world of control servers anyway,
so we'll need a third type later anyway, so just live with the two we
have for now.

Updates #12542

Change-Id: Ib8fd48a265e1da1f8779152f141f624a7f7260e9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-05-22 08:16:55 -07:00
.bencher bencher: add config to suppress failures on benchmark regressions. 2021-10-01 16:16:02 -07:00
.github tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
appc appc, feature/conn25: handle exact and wildcard domains correctly (#19202) 2026-05-01 17:33:21 -04:00
atomicfile all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
chirp all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
client ipn/ipnlocal, control/controlclient: process node adds/removes in constant time 2026-05-21 09:26:19 -07:00
clientupdate feature/clientupdate: windows update should use tailscale.exe update (#19438) 2026-04-17 10:28:35 -07:00
cmd net/traffic: switch rendezvous hashing from SHA256 to FNV-1a (#19821) 2026-05-21 10:11:59 -07:00
control control/controlclient: fix deadlock in map session change queue processing (#19828) 2026-05-22 07:13:18 -07:00
derp tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
disco disco: remove experimental label from BindUDPRelayHandshakeState 2026-03-24 11:04:11 -07:00
docs misc: add install-git-hooks.go and git hook for Change-Id tracking 2026-04-08 15:10:53 -07:00
doctor all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
drive cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I" 2026-05-04 14:03:28 -07:00
envknob envknob/logknob: remove unused package (#19515) 2026-04-24 15:48:06 -07:00
feature feature/conn25: set assignment expiry based on dns response TTL 2026-05-21 07:25:29 -07:00
gokrazy go.mod, gokrazy: bump to fork of gokrazy/gokrazy init process for syslog change 2026-04-29 11:27:41 -07:00
health health: avoid publishing health.Change when warnable visibility remains unchanged 2026-05-13 17:02:35 -05:00
hostinfo all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
internal cmd/tailscale/cli: allow fetching keys from AWS Parameter Store 2026-01-29 18:09:56 -05:00
ipn ipn/{ipnstate,ipnlocal}: add integer NodeID to PeerStatus 2026-05-22 08:16:55 -07:00
jsondb all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
k8s-operator cmd/k8s-operator: add nodeSelector to DNSConfig resource (#19429) 2026-04-29 15:56:33 +01:00
kube all: migrate code off Notify.NetMap to Notify.SelfChange 2026-05-01 06:51:40 -07:00
licenses licenses: update license notices 2026-05-14 21:04:41 -07:00
log cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
logpolicy all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
logtail logtail: run HTTP tests in-memory with memnet + synctest 2026-04-20 13:33:10 -07:00
metrics cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I" 2026-05-04 14:03:28 -07:00
misc misc/git_hook: propagate shared HOOK_VERSION (#19476) 2026-05-04 12:38:28 -04:00
net net/traffic: switch rendezvous hashing from SHA256 to FNV-1a (#19821) 2026-05-21 10:11:59 -07:00
omit all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
packages/deb all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
paths all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
portlist portlist: also tb.Skip benchmarks (not just tests) on bad Linux kernels 2026-02-12 13:19:09 -08:00
posture posture: add HealthTracker for serial number retrieval (#19181) 2026-04-25 15:42:47 -03:00
prober all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
proxymap all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
release release/dist/qnap: preserve .codesigning files as build artifacts 2026-04-28 12:29:56 +01:00
safesocket safesocket, ipn/ipnserver: use PeerCreds on solaris and illumos 2026-03-23 07:45:35 -07:00
safeweb safeweb: add CSRF token helpers and set cookie path to root (#19265) 2026-04-06 12:52:36 -04:00
scripts scripts/installer.sh: handle Zorin OS versions separately from Ubuntu (#19758) 2026-05-14 14:04:04 -07:00
sessionrecording cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
ssh/tailssh ipn/ipnlocal, all: split LocalBackend.NetMap into NetMapNoPeers / NetMapWithPeers 2026-04-30 11:14:06 -07:00
syncs cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
tailcfg all: update more references to Tailnet/Network Lock 2026-05-15 16:23:50 +01:00
tempfork misc/genreadme,tempfork/pkgdoc,tsnet: generate README.md files from godoc 2026-04-22 15:13:09 -07:00
tka all: update more references to Tailnet/Network Lock 2026-05-15 16:23:50 +01:00
tool tool/updateflakes, cmd/nardump: replace update-flake.sh with Go tool 2026-04-28 10:18:32 -07:00
tsconsensus all: migrate code off Notify.NetMap to Notify.SelfChange 2026-05-01 06:51:40 -07:00
tsconst all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tsd ipn/ipnlocal,tsd: add NoiseRoundTripper to tsd.Sys 2026-05-13 14:56:28 -07:00
tsnet net/traffic: switch rendezvous hashing from SHA256 to FNV-1a (#19821) 2026-05-21 10:11:59 -07:00
tstest tstest/integration: mark TestNoControlConnWhenDown as a flaky test (#19832) 2026-05-21 17:36:09 -07:00
tstime all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tsweb all: fix six tests that failed with -count=2 2026-04-13 18:52:57 -07:00
types ipn/ipnlocal, control/controlclient: process node adds/removes in constant time 2026-05-21 09:26:19 -07:00
util util/linuxfw: return error instead of nil pointer dereference 2026-05-19 10:01:07 -04:00
version version: use debug.ReadBuildInfo in CmdName on non-Windows 2026-04-24 09:48:11 -07:00
wf wf: allow limited broadcast to/from permitted interfaces when using an exit node on Windows 2026-01-23 18:30:38 -06:00
wgengine ipn/ipnlocal, control/controlclient: process node adds/removes in constant time 2026-05-21 09:26:19 -07:00
wif wif: add AWS ecs for autogenerated OIDC tokens 2026-03-25 14:41:41 -06:00
words Add 'fish' to the list of scales 2026-03-27 08:41:33 +00:00
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 2021-12-03 17:56:02 -08:00
.gitignore .gitignore: explicitly include tool/go.exe 2026-04-13 18:44:59 -07:00
.golangci.yml .golangci.yml: enforce gliderssh import alias via importas linter 2026-04-07 11:59:38 +01:00
.stignore Add .stignore for syncthing (#18540) 2026-01-27 16:15:17 -08:00
ALPINE.txt docker: bump alpine v3.19 -> 3.22 (#17155) 2025-09-17 20:22:24 +01:00
api.md {api.md,publicapi}: remove old API docs (#13468) 2024-09-13 14:10:33 -06:00
assert_ts_toolchain_match.go .: permit running binary built with TS_GO_NEXT=1 2026-02-23 09:37:04 -08:00
build_dist.sh build_dist.sh: keep --extra-small making a usable build, add --min 2025-10-06 21:15:25 -07:00
build_docker.sh docker: add riscv64 to container image architectures 2026-03-29 07:47:39 -07:00
cache_key_test.go util/cibuild, cache_key_test: skip TestTsgoRevInCacheKey outside Tailscale CI 2026-05-14 15:55:05 -07:00
CODE_OF_CONDUCT.md CODE_OF_CONDUCT.md: update code of conduct 2025-10-28 08:58:00 -07:00
CODEOWNERS CODEOWNERS: add the start of an owners file 2023-08-16 15:57:29 -07:00
Dockerfile go.toolchain.branch: switch to Go 1.26 2026-03-04 21:57:05 -08:00
Dockerfile.base all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
flake.lock nix: update flakes to get a nixpkgs version with go 1.26 2026-03-06 04:06:57 -08:00
flake.nix tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
flakehashes.json tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
go.mod tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
go.sum tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
go.toolchain.branch go.toolchain.branch: switch to Go 1.26 2026-03-04 21:57:05 -08:00
go.toolchain.next.branch tool/gocross, pull-toolchain.sh: support a "next" Go toolchain 2026-01-27 14:07:35 -08:00
go.toolchain.next.rev go.toolchain.rev: bump to Go 1.26.3 2026-05-07 15:33:05 -07:00
go.toolchain.rev go.toolchain.rev: bump to Go 1.26.3 2026-05-07 15:33:05 -07:00
go.toolchain.version go.toolchain.rev: bump to Go 1.26.3 2026-05-07 15:33:05 -07:00
gomod_test.go all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
header.txt all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
LICENSE all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
license_test.go all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
Makefile tool/updateflakes, cmd/nardump: replace update-flake.sh with Go tool 2026-04-28 10:18:32 -07:00
PATENTS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
pkgdoc_test.go cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I" 2026-05-04 14:03:28 -07:00
pull-toolchain.sh tool/updateflakes, cmd/nardump: replace update-flake.sh with Go tool 2026-04-28 10:18:32 -07:00
README.md README: update the version of Go in the README (#19168) 2026-03-28 22:21:41 -03:00
SECURITY.md Add a SECURITY.md for vulnerability reports. 2020-02-11 10:26:41 -08:00
shell.nix tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
staticcheck.conf all: cleanup unused code, part 2 (#10670) 2023-12-21 17:40:03 -08:00
version_tailscale_test.go all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
version_test.go all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
version-embed.go cmd/printdep: add --next flag to use rc Go build hash instead 2026-01-27 14:49:56 -08:00
VERSION.txt VERSION.txt: this is v1.99.0 (#19645) 2026-05-05 15:07:20 -04:00

README.md

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

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

Other Tailscale repos of note:

For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.

Using

We serve packages for a variety of distros and platforms 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. The GUI wrappers on non-open source platforms are themselves not open source.

Building

We always require the latest Go release, currently Go 1.26. (While we build releases with our Go fork, its use is not required.)

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.

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.

See commit-messages.md (or skim git log) for our commit message style.

About Us

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

Legal

WireGuard is a registered trademark of Jason A. Donenfeld.