diff options
Diffstat (limited to 'pkg/tcpip')
| -rw-r--r-- | pkg/tcpip/tcpip.go | 2 | ||||
| -rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 9 |
2 files changed, 7 insertions, 4 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index 45f59b60f..091bc5281 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -968,7 +968,7 @@ type IPPacketInfo struct { // LocalAddr is the local address. LocalAddr Address - // DestinationAddr is the destination address. + // DestinationAddr is the destination address found in the IP header. DestinationAddr Address } diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 444b5b01c..4a2b6c03a 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -1444,13 +1444,16 @@ func (e *endpoint) HandlePacket(r *stack.Route, id stack.TransportEndpointID, pk switch r.NetProto { case header.IPv4ProtocolNumber: packet.tos, _ = header.IPv4(pkt.NetworkHeader).TOS() - packet.packetInfo.LocalAddr = r.LocalAddress - packet.packetInfo.DestinationAddr = r.RemoteAddress - packet.packetInfo.NIC = r.NICID() case header.IPv6ProtocolNumber: packet.tos, _ = header.IPv6(pkt.NetworkHeader).TOS() } + // TODO(gvisor.dev/issue/3556): r.LocalAddress may be a multicast or broadcast + // address. packetInfo.LocalAddr should hold a unicast address that can be + // used to respond to the incoming packet. + packet.packetInfo.LocalAddr = r.LocalAddress + packet.packetInfo.DestinationAddr = r.LocalAddress + packet.packetInfo.NIC = r.NICID() packet.timestamp = e.stack.Clock().NowNanoseconds() e.rcvMu.Unlock() |