Brad Fitzpatrick
ab4262680b
Nothing reads ipn.Notify.NetMap anymore. The previous commit removed its runtime (non-initial) emission, and every first-party client is also off the initial one: the Win32 and WinUI GUIs and the Apple bridge subscribe with InitialStatus or InitialState plus peer deltas, Android no longer uses it, and the remaining in-tree subscribers that set NotifyInitialNetMap (sniproxy and the kube helpers) only did so to get the initial Notify.SelfChange and discarded the netmap that tailscaled built, encoded, and shipped for them. Delete the Notify.NetMap field and the NotifyInitialNetMap bit. The bit value stays reserved under the name ObsoleteNotifyInitialNetMap and ValidateNotifyWatchOpt rejects subscriptions that set it, like the NotifyRateLimit bit removed in the previous commit. NotifyNoNetMap remains accepted as a no-op because shipping GUIs still set it. The blessed way to seed a watcher's view is NotifyInitialStatus, but it unconditionally built O(peers) status entries, which is exactly the waste this series is deleting for watchers that only care about the self node. Size the initial status to the subscription instead: Status.Peer is only populated when the watcher also set NotifyPeerChanges or NotifyPeerPatches, since only peer-delta subscribers need a peer baseline to apply deltas to. That matches its existing first-party users (containerboot and the WinUI GUI both pair InitialStatus with peer bits). Migrate sniproxy and the kube helpers to NotifyInitialStatus: they seed from InitialStatus.Self and react to the (ungated) runtime Notify.SelfChange messages after that, so their initial message now carries one PeerStatus instead of a full netmap. Also drop doc comment references to LocalClient.NetMap, a method that does not exist; on-demand fetches go through other LocalAPI methods such as LocalClient.Status. Updates #12542 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Change-Id: I242992a744c0ffd0be6f27e8c735aa69d5b23b5e
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.