66918a65f6
When a client's node key expires and the user clicks "Login" (or runs `tailscale up`), the Login() method was cancelling the map poll context. This caused key extension notifications from the server to be lost, leaving clients stuck in NeedsLogin state even after an admin extended their key. The fix has three parts: 1. Login(): Don't cancel mapCtx if we have valid credentials (loggedIn=true) or a valid node key. This allows the map poll to continue receiving server notifications while the auth flow proceeds in parallel. 2. mapRoutine(): Poll when we have a node key, even if !loggedIn. This handles the tsnet restart scenario where control returns an AuthURL (so loggedIn=false) but we still have a valid node key that can receive map updates. 3. sendStatus()/UpdateFullNetmap(): Forward netmaps when we have a node key, not just when loggedIn. This ensures the backend sees key expiry changes even when the auth flow hasn't completed. "First successful flow wins": if a key extension arrives via map poll, the client recovers automatically. If the auth flow completes first, that works too. Either way, the client is no longer stuck. This aligns with the SeamlessKeyRenewal philosophy: maintain connectivity paths while authentication proceeds, allowing server-initiated recovery. Fixes #19326 Change-Id: I26dbbc1fa7c1159ba075362e44d02814355d6b44 Signed-off-by: Avery Pennarun <apenwarr@tailscale.com> Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.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.