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30 lines
738 B
Go
30 lines
738 B
Go
package dhcp
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import (
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"context"
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"net"
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"net/netip"
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"runtime"
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"github.com/metacubex/mihomo/component/dialer"
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)
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func ListenDHCPClient(ctx context.Context, ifaceName string) (net.PacketConn, error) {
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listenAddr := "0.0.0.0:68"
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if runtime.GOOS == "linux" || runtime.GOOS == "android" {
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listenAddr = "255.255.255.255:68"
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}
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options := []dialer.Option{
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dialer.WithInterface(ifaceName),
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dialer.WithAddrReuse(true),
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}
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// fallback bind on windows, because syscall bind can not receive broadcast
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if runtime.GOOS == "windows" {
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options = append(options, dialer.WithFallbackBind(true))
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}
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return dialer.ListenPacket(ctx, "udp4", listenAddr, netip.AddrPortFrom(netip.AddrFrom4([4]byte{255, 255, 255, 255}), 67), options...)
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}
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