45 lines
617 B
Go
45 lines
617 B
Go
// +build darwin
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package gost
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import (
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"net"
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"os/exec"
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"strconv"
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"github.com/songgao/water"
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)
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func createTun(cfg TunConfig) (conn net.Conn, ipNet *net.IPNet, err error) {
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ip, ipNet, err := net.ParseCIDR(cfg.Addr)
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if err != nil {
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return
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}
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ifce, err := water.New(water.Config{
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DeviceType: water.TUN,
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})
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if err != nil {
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return
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}
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mtu := cfg.MTU
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if mtu <= 0 {
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mtu = DefaultMTU
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}
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if err = exec.Command(
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"ifconfig", ifce.Name(),
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"inet", cfg.Addr,
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"mtu", strconv.Itoa(mtu),
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"up").Run(); err != nil {
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return
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}
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conn = &tunConn{
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ifce: ifce,
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addr: &net.IPAddr{IP: ip},
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}
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return
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}
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