Implement OriginalDestinationAddrgonet-originaldestination

1 files changed, 9 insertions, 0 deletions

diff --git a/pkg/tcpip/adapters/gonet/gonet.go b/pkg/tcpip/adapters/gonet/gonet.go
index 1f2bcaf65..16650024f 100644
--- a/pkg/tcpip/adapters/gonet/gonet.go
+++ b/pkg/tcpip/adapters/gonet/gonet.go
@@ -449,6 +449,15 @@ func (c *TCPConn) RemoteAddr() net.Addr {
 	return fullToTCPAddr(a)
 }
 
+// Extension
+func (c *TCPConn) OriginalDestinationAddr() net.Addr {
+	var v tcpip.OriginalDestinationOption
+	if err := c.ep.GetSockOpt(&v); err != nil {
+		return nil
+	}
+	return fullToTCPAddr(tcpip.FullAddress(v))
+}
+
 func (c *TCPConn) newOpError(op string, err error) *net.OpError {
 	return &net.OpError{
 		Op:     op,