9b32ba7f54
Currently, we disconnect Tailscale and reset LocalBackend on Windows when the last LocalAPI client disconnects, unless Unattended Mode is enabled for the current profile. And the implementation is somewhat racy since the current profile could theoretically change after (*ipnserver.Server).addActiveHTTPRequest checks (*LocalBackend).InServerMode() and before it calls (*LocalBackend).SetCurrentUser(nil) (or, previously, (*LocalBackend).ResetForClientDisconnect). Additionally, we might want to keep Tailscale running and connected while a user is logged in rather than tying it to whether a LocalAPI client is connected (i.e., while the GUI is running), even when Unattended Mode is disabled for a profile. This includes scenarios where the new AlwaysOn mode is enabled, as well as when Tailscale is used on headless Windows editions, such as Windows Server Core, where the GUI is not supported. It may also be desirable to switch to the "background" profile when a user logs off from their device or implement other similar features. To facilitate these improvements, we move the logic from ipnserver.Server to ipnlocal.LocalBackend, where it determines whether to keep Tailscale running when the current user disconnects. We also update the logic that determines whether a connection should be allowed to better reflect the fact that, currently, LocalAPI connections are not allowed unless: - the current UID is "", meaning that either we are not on a multi-user system or Tailscale is idle; - the LocalAPI client belongs to the current user (their UIDs are the same); - the LocalAPI client is Local System (special case; Local System is always allowed). Whether Unattended Mode is enabled only affects the error message returned to the Local API client when the connection is denied. Updates #14823 Signed-off-by: Nick Khyl <nickk@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 1.23. (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 git log for our commit message style. It's basically the same as
Go's 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.