Claus Lensbøl da1fc4fc8c wgengine/magicsock: add facilities to support multiple disco keys (#20927)
Instead of accessing the key and string directly, put it behind a method
to make it easier to use that as a proxy when we add multiple keys
(control and TSMP origin).

Instead of only updating a single origin for disco keys, teach peermap
how to work with multiple disco key sources so a key can originate from
either control or TSMP.

This sets the work up for switching dynamically between disco keys
later. As of this commit, the keys still arrive for the most part via
the controlClient, but this commit sets us up for:
 - Switching dynamically between received keys.
 - Route TSMP keys directly into magicsock, not via controlClient.
 - Potentially revert controlClient to the state before any TSMP
   changes, making it single threaded.
 - Use switching keys as trigger for optimistic WG handshakes, instead
   of tearing down the full connection and setting it up again.

Updates #20494

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
2026-08-25 09:55:48 -04:00
2026-07-10 14:55:33 -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
2026-07-10 17:39:16 -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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