ff1c7ef23c
Give nodeBackend a RouteManager and keep it in sync as routing inputs change: full netmaps resync the whole peer set (removals plus no-op-cheap upserts), incremental netmap deltas mirror their peer upserts and removes into the same mutation batch, and authReconfigLocked pushes the routing-relevant prefs (exit node, subnet route acceptance, OneCGNAT) after resolving the exit node's stable ID to its current numeric node ID. A selected exit node that doesn't resolve to a current peer (a nonexistent node, or MDM's "auto:any" placeholder awaiting resolution) is not the same as no exit node: per the long-standing ipn.Prefs.ExitNodeID contract, it blackholes internet traffic rather than letting it escape to the local network. RouteManager's Prefs gains an ExitNodeSelected bit so its OS route set keeps the default routes in that case, with no outbound peer to carry them, matching what routerConfigLocked does today, as pinned by TestRouterConfigExitNodeBlackhole in the previous commit. All mutations happen with nodeBackend.mu held, satisfying the RouteManager's serialized Begin/Commit contract. Nothing consumes its snapshots yet; the wgengine data plane and OS router wiring come next. Updates #12542 Change-Id: I677b6b2c9efb8e41b3d27071bd9db73e01640d3b 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.