James Tucker 79d5abe043 ssh/tailssh: launch sessions via the monitor
Launch incubator sessions through the per-connection monitor, passing
stdio and the optional environment pipe via SCM_RIGHTS. tailscaled
retains the parent I/O descriptors. Keep direct launch when no
tailscaled binary is available, and on Plan 9.

Wait for dispatched exec replies even after session cancellation so
the session retains ownership of any child that starts. Publish exit
status through persistent completion state. Identify monitor children
by PID and exec request ID, and validate both when signaling. Remove
raw-PID signaling after monitor teardown.

Normalize incubator identity flags and reject alternate spellings
that could override them. The monitor RPC caller remains trusted to
supply the executable and other arguments; this is not a privilege
boundary against tailscaled.

Pass default TERM and locale values through the environment pipe,
preserving last-value-wins defaults and policy-forwarded precedence.
Use a separately owned close-on-exec PTY descriptor for resizing.

Add regression tests for launch cancellation, exit delivery, signal
identity, descriptor ownership, and environment handling.

Updates tailscale/corp#50380

Signed-off-by: James Tucker <james@tailscale.com>
2026-10-26 07:49:11 -07:00
2026-10-19 10:18:56 -07:00
2026-09-29 13:16:16 -07:00
2026-10-22 10:52:43 -04:00
2026-01-27 16:15:17 -08:00
2026-08-28 12:47:04 -07:00
2026-09-17 16:55:23 -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.

S
Description
No description provided
Readme BSD-3-Clause
227 MiB
0 Stars 1 Watchers 0 Forks
Languages
Go 96.4%
C 1.2%
TypeScript 0.8%
Shell 0.5%
Swift 0.3%
Other 0.4%