Martin Minkus 16dacb0c50 wgengine/router/osrouter: don't destroy the FreeBSD tun from Close
freebsdRouter.Close ran "ifconfig tailscale0 destroy" while this process
still holds the tun open: the engine closes the router before the tun
device, and FreeBSD's tun(4) makes SIOCIFDESTROY sleep until the last
descriptor closes. tailscaled therefore deadlocks against its own child
ifconfig on every shutdown, and "service tailscaled restart" hangs
forever:

  51709  -  I   /usr/local/bin/tailscaled -port 41641 -tun tailscale0 ...
  52455  -  I   ifconfig tailscale0 destroy
  52403  1  I+  /bin/sh /usr/local/etc/rc.d/tailscaled restart

Do only the PF cleanup at Close time. The interface left behind at
process exit is destroyed by the next startup's cleanUp hook
(router.HookCleanUp), which exists for exactly that and runs when
nothing holds the device.

Updates #5573

Change-Id: I7b739d948718bfb460240d2c0dd74658fc40ac82
Signed-off-by: Martin Minkus <martin.minkus@sonic.com>
2026-09-03 12:40:44 -07:00
2026-08-14 16:52:55 -07:00
2026-07-10 17:39:16 -07:00
2026-08-13 11:33:45 +01:00
2026-01-27 16:15:17 -08:00
2026-06-02 10:59:29 -07:00
2026-08-28 12:47:04 -07:00
2026-08-28 12:47:04 -07:00
2026-09-01 15:47:33 -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 1.27. (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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