db048e905d
controlhttp has the responsibility of dialing a set of candidate control endpoints in a way that minimizes user facing latency. If one control endpoint is unavailable we promptly dial another, racing across the dimensions of: IPv6, IPv4, port 80, and port 443, over multiple server endpoints. In the case that the top priority endpoint was not available, the prior implementation would hang waiting for other results, so as to try to return the highest priority successful connection to the rest of the client code. This hang would take too long with a large dialplan and sufficient client to endpoint latency as to cause the server to timeout the connection due to inactivity in the intermediate state. Instead of trying to prioritize non-ideal candidate connections, the first successful connection is now used unconditionally, improving user facing latency and avoiding any delays that would encroach on the server-side timeout. The tests are converted to memnet and synctest, running on all platforms. Fixes #8442 Fixes tailscale/corp#32534 Co-authored-by: James Tucker <james@tailscale.com> Change-Id: I4eb57f046d8b40403220e40eb67a31c41adb3a38 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Signed-off-by: James Tucker <james@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 1.23. (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.