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Nick Khyl f1c7b463cd ipn/{ipnauth,ipnlocal,localapi}: make EditPrefs return an error if changing exit node is restricted by policy
We extract checkEditPrefsAccessLocked, adjustEditPrefsLocked, and onEditPrefsLocked from the EditPrefs
execution path, defining when each step is performed and what behavior is allowed at each stage.

Currently, this is primarily used to support Always On mode, to handle the Exit Node enablement toggle,
and to report prefs edit metrics.

We then use it to enforce Exit Node policy settings by preventing users from setting an exit node
and making EditPrefs return an error when an exit node is restricted by policy. This enforcement is also
extended to the Exit Node toggle.

These changes prepare for supporting Exit Node overrides when permitted by policy and preventing logout
while Always On mode is enabled.

In the future, implementation of these methods can be delegated to ipnext extensions via the feature hooks.

Updates tailscale/corp#29969
Updates tailscale/corp#26249

Signed-off-by: Nick Khyl <nickk@tailscale.com>
2025-07-07 17:18:00 -05:00
2025-04-07 12:09:43 -07:00
2025-04-02 07:36:04 -07:00
2024-04-16 15:32:38 -07:00
2025-04-08 09:18:38 -07:00
2020-02-10 22:16:30 -08:00
2024-03-08 15:24:36 -08:00

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 1.23. (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 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.

Description
The easiest, most secure way to use WireGuard and 2FA.
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