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31 lines
555 B
Go
31 lines
555 B
Go
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build tailscale_go && (darwin || ios)
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package sockstats
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import (
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"syscall"
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"golang.org/x/sys/unix"
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)
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func init() {
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tcpConnStats = darwinTcpConnStats
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}
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func darwinTcpConnStats(c syscall.RawConn) (tx, rx uint64) {
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c.Control(func(fd uintptr) {
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if rawInfo, err := unix.GetsockoptTCPConnectionInfo(
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int(fd),
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unix.IPPROTO_TCP,
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unix.TCP_CONNECTION_INFO,
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); err == nil {
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tx = uint64(rawInfo.Txbytes)
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rx = uint64(rawInfo.Rxbytes)
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}
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})
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return
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}
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