Create two wgengine instances and pass data through them, measuring throughput, latency, and packet loss.

Package capture formats packet logging into a debug pcap stream.

Package filter is a stateful packet filter.

Package magicsock implements a socket that can change its communication path while in use, actively searching for the best way to communicate.

Package netlog provides a logger that monitors a TUN device and periodically records any traffic into a log stream.

Package netstack wires up gVisor's netstack into Tailscale.

Package router presents an interface to manipulate the host network stack's state.

Package wgcfg has types and a parser for representing WireGuard config.

Package wgint provides somewhat shady access to wireguard-go internals that don't (yet) have public APIs.

Package wglog contains logging helpers for wireguard-go.

NewFakeUserspaceEngine returns a new userspace engine for testing.

NewUserspaceEngine creates the named tun device and returns a Tailscale Engine running on it.

NewWatchdog wraps an Engine and makes sure that all methods complete within a reasonable amount of time.

ErrNoChanges is returned by Engine.Reconfig if no changes were made.

Config is the engine configuration.

PeerForIP is the type returned by Engine.PeerForIP.

Status is the Engine status.

BIRDClient handles communication with the BIRD Internet Routing Daemon.

Engine is the Tailscale WireGuard engine interface.

NetworkMapCallback is the type used by callbacks that hook into network map updates.

StatusCallback is the type of status callbacks used by Engine.SetStatusCallback.