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GH-352: Add Tunnel CLI option "edge-bind-address" (#870)

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* Add Tunnel CLI option "edge-bind-address"
This commit is contained in:
iBug
2023-03-01 00:11:42 +08:00
committed by GitHub
parent b97979487e
commit fed60ae4c3
9 changed files with 129 additions and 16 deletions
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13
connection/quic.go
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@@ -67,6 +67,7 @@ type QUICConnection struct {
func NewQUICConnection(
quicConfig *quic.Config,
edgeAddr net.Addr,
localAddr net.IP,
connIndex uint8,
tlsConfig *tls.Config,
orchestrator Orchestrator,
@@ -75,7 +76,7 @@ func NewQUICConnection(
logger *zerolog.Logger,
packetRouterConfig *ingress.GlobalRouterConfig,
) (*QUICConnection, error) {
udpConn, err := createUDPConnForConnIndex(connIndex, logger)
udpConn, err := createUDPConnForConnIndex(connIndex, localAddr, logger)
if err != nil {
return nil, err
}
@@ -563,13 +564,17 @@ func (rp *muxerWrapper) Close() error {
return nil
}
func createUDPConnForConnIndex(connIndex uint8, logger *zerolog.Logger) (*net.UDPConn, error) {
func createUDPConnForConnIndex(connIndex uint8, localIP net.IP, logger *zerolog.Logger) (*net.UDPConn, error) {
portMapMutex.Lock()
defer portMapMutex.Unlock()
if localIP == nil {
localIP = net.IPv4zero
}
// if port was not set yet, it will be zero, so bind will randomly allocate one.
if port, ok := portForConnIndex[connIndex]; ok {
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4zero, Port: port})
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: localIP, Port: port})
// if there wasn't an error, or if port was 0 (independently of error or not, just return)
if err == nil {
return udpConn, nil
@@ -579,7 +584,7 @@ func createUDPConnForConnIndex(connIndex uint8, logger *zerolog.Logger) (*net.UD
}
// if we reached here, then there was an error or port as not been allocated it.
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4zero, Port: 0})
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: localIP, Port: 0})
if err == nil {
udpAddr, ok := (udpConn.LocalAddr()).(*net.UDPAddr)
if !ok {