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Fix: support unspecified UDP bind address (#1159)

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Jason Lyu 2020-12-31 18:58:03 +08:00 committed by GitHub
parent 02d029dd2d
commit 9619c3fb20
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1 changed files with 15 additions and 1 deletions
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16
adapters/outbound/socks5.go
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@ -122,7 +122,21 @@ func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
pc.Close()
}()
return newPacketConn(&socksPacketConn{PacketConn: pc, rAddr: bindAddr.UDPAddr(), tcpConn: c}, ss), nil
// Support unspecified UDP bind address.
bindUDPAddr := bindAddr.UDPAddr()
if bindUDPAddr == nil {
err = errors.New("invalid UDP bind address")
return
} else if bindUDPAddr.IP.IsUnspecified() {
serverAddr, err := resolveUDPAddr("udp", ss.Addr())
if err != nil {
return nil, err
}
bindUDPAddr.IP = serverAddr.IP
}
return newPacketConn(&socksPacketConn{PacketConn: pc, rAddr: bindUDPAddr, tcpConn: c}, ss), nil
}
func NewSocks5(option Socks5Option) *Socks5 {