mirror of
https://github.com/tailscale/tailscale.git
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36 lines
823 B
Go
36 lines
823 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 darwin
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package prober
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import (
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"fmt"
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"net/netip"
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"os/exec"
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"go4.org/netipx"
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)
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const tunName = "utun"
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func configureTUN(addr netip.Prefix, tunname string) error {
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cmd := exec.Command("ifconfig", tunname, "inet", addr.String(), addr.Addr().String())
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res, err := cmd.CombinedOutput()
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if err != nil {
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return fmt.Errorf("failed to add address: %w (%s)", err, string(res))
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}
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net := netipx.PrefixIPNet(addr)
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nip := net.IP.Mask(net.Mask)
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nstr := fmt.Sprintf("%v/%d", nip, addr.Bits())
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cmd = exec.Command("route", "-q", "-n", "add", "-inet", nstr, "-iface", addr.Addr().String())
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res, err = cmd.CombinedOutput()
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if err != nil {
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return fmt.Errorf("failed to add route: %w (%s)", err, string(res))
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}
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return nil
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}
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