Claus Lensbøl
85bb5f84a5
When a client starts up without being able to connect to control, it sends its discoKey to other nodes it wants to communicate with over TSMP. This disco key will be a newer key than the one control knows about. If the client that can connect to control gets a full netmap, ensure that the disco key for the node not connected to control is not overwritten with the stale key control knows about. This is implemented through keeping track of mapSession and use that for the discokey injection if it is available. This ensures that we are not constantly resetting the wireguard connection when getting the wrong keys from control. This is implemented as: - If the key is received via TSMP: - Set lastSeen for the peer to now() - Set online for the peer to false - When processing new keys, only accept keys where either: - Peer is online - lastSeen is newer than existing last seen If mapSession is not available, as in we are not yet connected to control, punt down the disco key injection to magicsock. Ideally, we will want to have mapSession be long lived at some point in the near future so we only need to inject keys in one location and then also use that for testing and loading the cache, but that is a yak for another PR. Updates #12639 Signed-off-by: Claus Lensbøl <claus@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 1.25. (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:
- 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.