Brad Fitzpatrick b4e3a5299c cmd/tailscaled, safesocket: add --windows-mode=dev
This adds a tailscaled string flag "--windows-mode" which accepts two
possible values: the empty string (default) to get the normal behavior
(tailscaled running as an admin, usually as a service), and "dev", to
make the safesocket named pipe path be at a location that regular
users (non-admins) can create.

It then modifies the safesocket client side (as used by the CLI) to
try the dev mode path too on failure.

This lets people work on tailscaled.exe+tailscale.exe in a terminal
easily during development, as either an admin or non-admin. (This
used to work prior to the move away from TCP localhost to named pipes
for safesocket on Windows)

Updates #2791

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I9c1e3a5b7d0f2a4c6e8b0d2f4a6c8e0b2d4f6a8c
2026-09-28 13:26:52 -07:00
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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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