Brad Fitzpatrick 2bd3a04528 ipn, ipn/ipnlocal: remove Notify.NetMap, always send initial SelfChange
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 never used 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.

SelfChange is not gated by any subscription bit; runtime self changes
already go to every watcher. Extend that to the start of the session:
every watch session now begins with a Notify carrying the current self
node (if any), regardless of mask, so no bit is needed to seed a
watcher's view. Watchers that need more than self info fetch the
netmap on demand via LocalClient.NetMap.

With that, delete the Notify.NetMap field and the NotifyInitialNetMap
bit. The bit value stays reserved under the name
NotifyInitialNetMapRemoved 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.

Updates #12542

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I242992a744c0ffd0be6f27e8c735aa69d5b23b5e
2026-09-11 14:55:11 -07:00
2026-09-03 15:37:10 -07:00
2026-07-10 17:39:16 -07:00
2026-08-13 11:33:45 +01:00
2026-01-27 16:15:17 -08:00
2026-06-02 10:59:29 -07:00
2026-08-28 12:47:04 -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 1.27. (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:

WireGuard is a registered trademark of Jason A. Donenfeld.

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