tailscale/cmd/stunstamp/stunstamp_default.go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause

//go:build !linux

package main

import (
	"errors"
	"io"
	"net"
	"time"
)

func getConnKernelTimestamp() (io.ReadWriteCloser, error) {
	return nil, errors.New("unimplemented")
}

func measureRTTKernel(conn io.ReadWriteCloser, dst *net.UDPAddr, req []byte) (resp []byte, rtt time.Duration, err error) {
	return nil, 0, errors.New("unimplemented")
}

func supportsKernelTS() bool {
	return false
}
cmd/stunstamp: implement service to measure DERP STUN RTT (#12241) stunstamp timestamping includes userspace and SO_TIMESTAMPING kernel timestamping where available. Measurements are written locally to a sqlite DB, exposed over an HTTP API, and written to prometheus via remote-write protocol. Updates tailscale/corp#20344 Signed-off-by: Jordan Whited <jordan@tailscale.com> 5 months ago			`// Copyright (c) Tailscale Inc & AUTHORS`
			`// SPDX-License-Identifier: BSD-3-Clause`

			`//go:build !linux`

			`package main`

			`import (`
			`"errors"`
			`"io"`
			`"net"`
			`"time"`
			`)`

			`func getConnKernelTimestamp() (io.ReadWriteCloser, error) {`
			`return nil, errors.New("unimplemented")`
			`}`

			`func measureRTTKernel(conn io.ReadWriteCloser, dst *net.UDPAddr, req []byte) (resp []byte, rtt time.Duration, err error) {`
			`return nil, 0, errors.New("unimplemented")`
			`}`

			`func supportsKernelTS() bool {`
			`return false`
			`}`