James Tucker d6211abfb2 net/udprelay,feature/relayserver,client/local: make endpoint lifetimes configurable
The bind and steady state endpoint lifetimes were hardcoded to 30s and
5m, which makes tests reproducing relay-session-reap scenarios, e.g.
in-process magicsock e2e tests and natlab VM tests for #20082 (black
hole following relay session reap), take 5+ minutes of wall time.

Add Server.SetLifetimes, which validates the new values and pokes the
endpoint GC loop to reset its ticker so they take effect immediately,
and a SetLifetimesForTest wrapper for brevity in in-process tests. For
tests that run tailscaled as a separate process, e.g. natlab VM tests,
expose it at runtime via a PermitWrite-gated LocalAPI debug endpoint,
debug-peer-relay-server-lifetimes, mirroring the existing
debug-peer-relay-sessions plumbing through the relayserver extension,
with a corresponding client/local method. A LocalAPI hook is preferred
over env knobs as it is per-instance and parallel-test-safe, and works
after the relay server is started via the RelayServerPort pref.
Production behavior is unchanged unless the hook is used.

Updates #20082

Change-Id: I827c54b222a268cbdb90c41febfe95ae3f2295f2
Signed-off-by: James Tucker <james@tailscale.com>
2026-06-11 02:44:56 +00:00
2026-06-01 12:09:49 -07:00
2026-06-08 09:58:54 -07:00
2026-01-27 16:15:17 -08:00
2026-06-02 10:59:29 -07:00

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:

WireGuard is a registered trademark of Jason A. Donenfeld.

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