Brad Fitzpatrick c0e6ffed0d tstest/tailmac: add NIC hot-swap, disconnected NIC, and screenshot server
Add NIC attachment hot-swap support to Host.app: VZNetworkDevice.attachment
is writable at runtime, so --disconnected-nic creates a NIC with no
attachment, and --attach-network hot-swaps it to a vnet dgram socket
after boot/restore. macOS detects link-up and does DHCP.

Refactor TailMacConfigHelper: extract createDgramAttachment() and
createDisconnectedNetworkDeviceConfiguration() from the monolithic
createSocketNetworkDeviceConfiguration().

Add --screenshot-port flag for headless mode. Host.app serves GET
/screenshot as JPEG via a localhost HTTP server, capturing the
VZVirtualMachineView via CGWindowListCreateImage. The Go test harness
polls these to push live thumbnails to the web dashboard.

Also: SIGINT handler in headless mode for clean VM state save.

Updates #13038

Change-Id: I42fba0ecd760371b4ec5b26a0557e3dd0ba9ecae
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-04-27 17:03:09 -07:00
2026-04-13 12:47:58 -07:00
2026-03-27 08:41:33 +00:00
2026-01-27 16:15:17 -08:00

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.

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