d0ae993334
Add two tests building on TestExitNode's framework: TestSubnetRouterPublicIP brings up a client, a subnet router, and a webserver, each on its own NAT'd network with distinct WAN IPs. The subnet router advertises the webserver's network as a route. The test toggles the client's --accept-routes preference and asserts that the webserver's echoed source IP switches between the client's own WAN (direct dial) and the subnet router's WAN (forwarded through the router and SNAT'd). TestSubnetRouterAndExitNode adds a fourth node, an exit node that advertises 0.0.0.0/0 + ::/0, and uses a table-driven layout with subtests to cover the four combinations of (exit on/off, subnet on/off). The case where both are on confirms longest-prefix match wins: the subnet router's /24 takes precedence over the exit node's /0. The exit node itself is configured with --accept-routes=off so that, in the exit-only case, it forwards directly to the simulated internet rather than re-routing the forwarded traffic via the subnet router (which would otherwise mask the exit node's WAN as the observed source). Adds an Env.SetAcceptRoutes helper for toggling the RouteAll pref via EditPrefs, used by both tests. Updates #13038 Change-Id: Ifc2726db1df2f039c477c222484f535bebc40445 Signed-off-by: Brad Fitzpatrick <bradfitz@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 1.26. (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:
- 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.