Harry Harpham 61ac021c5d wgengine/magicsock: assume network up for tests
Without this, any test relying on underlying use of magicsock will fail
without network connectivity, even when the test logic has no need for a
network connection. Tests currently in this bucket include many in
tstest/integration and in tsnet.

Further explanation:

ipn only becomes Running when it sees at least one live peer or DERP
connection:
0cc1b2ff76/ipn/ipnlocal/local.go (L5861-L5866)

When tests only use a single node, they will never see a peer, so the
node has to wait to see a DERP server.

magicsock sets the preferred DERP server in updateNetInfo(), but this
function returns early if the network is down.
0cc1b2ff76/wgengine/magicsock/magicsock.go (L1053-L1106)

Because we're checking the real network, this prevents ipn from entering
"Running" and causes the test to fail or hang.

In tests, we can assume the network is up unless we're explicitly testing
the behaviour of tailscaled when the network is down. We do something similar
in magicsock/derp.go, where we assume we're connected to control unless
explicitly testing otherwise:
7d2101f352/wgengine/magicsock/derp.go (L166-L177)

This is the template for the changes to `networkDown()`.

Fixes #17122

Co-authored-by: Alex Chan <alexc@tailscale.com>
Signed-off-by: Harry Harpham <harry@tailscale.com>
2026-03-31 09:57:14 -06:00
2026-03-30 12:34:26 -07:00
2026-03-27 08:41:33 +00:00
2026-01-27 16:15:17 -08:00
2026-03-16 13:51:04 -07:00
2026-03-16 13:51:04 -07:00
2026-03-16 13:51:04 -07:00
2026-03-16 13:51:04 -07:00
2026-03-06 11:27:29 -08:00
2026-03-16 13:51:04 -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 1.26. (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.

Description
No description provided
Readme BSD-3-Clause 146 MiB
Languages
Go 95.6%
C 1.7%
TypeScript 1.1%
Shell 0.6%
Swift 0.3%
Other 0.4%