Nick Khyl
2a6b9407b8
Replace the GUIVisibilityProvider/Filter plumbing and the per-session hidden-peer tracking with a generic per-session notify hook, and let the guivisibility extension own all policy interpretation. ipnlocal now only keeps the session's effective policy snapshot (which it already fetched) and runs ipnext.Hooks.MutateNotifyForSessionLocked on the per-session copy of each Notify, after gating, plus on the initial Notify. The hook receives an ipnext.WatchSession exposing that snapshot. The extension populates Notify.NodeGUIVisibility with the hidden peers among the nodes the Notify covers: all peers when it carries Policy (initially and on policy change), or the PeersChanged peers otherwise. Absent means visible, so a Policy-bearing Notify replaces the client's visibility state and a peer-change Notify updates only the changed peers. No NodeGUIVisibilityChanges/Removed fields and no per-session node state are needed: removed peers simply leave the client's peer set, and full netmap updates already resend every peer alongside SelfChange. When the feature isn't linked, the hook slice is empty and the fast path in notifyForSessionLocked is unchanged. When the policy isn't configured, the hook costs a snapshot lookup per session per Notify and sends nothing. Updates tailscale/corp#44104 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 1.27. (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:
- 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.