536d9e135e
Engine.Reconfig previously diffed cfg.Peers disco keys against the previous config to find restarted peers and flush their WireGuard sessions, with a TSMP-learned-key map to suppress resets for key changes that arrived over a working session. That was the last per-peer state computed from wgcfg.Config.Peers inside the engine, and it only ran on full reconfigs, so incremental netmap deltas never got session resets at all. Move the detection into nodeBackend, which sees every peer change: full netmaps in SetNetMap and incremental upserts in UpdateNetmapDelta both now report which peers changed disco keys, with the same TSMP suppression and mismatch accounting as before. LocalBackend acts on the result via a new Engine.ResetDevicePeer method, which just removes the peer from the WireGuard device and lets the peer lookup func lazily re-create it with fresh state. LocalBackend.PatchDiscoKey now records TSMP-learned keys in nodeBackend instead of forwarding to the engine, so the engine's PatchDiscoKey method and tsmpLearnedDisco map are gone. The controlclient patchDiscoKeyer interface becomes the exported DiscoKeyUpdater so LocalBackend can compile-time assert that it implements it, alongside its NetmapDeltaUpdater friends, replacing the test that asserted the same of the engine. This is another step toward removing Peers from wgcfg.Config. Updates #12542 Change-Id: I6b42e460f42924816beae89ca43731cb91b66054 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Tailscale
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:
- the Android app is at https://github.com/tailscale/tailscale-android
- the Synology package is at https://github.com/tailscale/tailscale-synology
- the QNAP package is at https://github.com/tailscale/tailscale-qpkg
- the Chocolatey packaging is at https://github.com/tailscale/tailscale-chocolatey
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:
- https://github.com/tailscale/tailscale/graphs/contributors
- https://github.com/tailscale/tailscale-android/graphs/contributors
Legal
WireGuard is a registered trademark of Jason A. Donenfeld.