diff options
Diffstat (limited to 'pkg/tcpip/transport/udp/endpoint.go')
| -rw-r--r-- | pkg/tcpip/transport/udp/endpoint.go | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go index 81601f559..648587137 100644 --- a/pkg/tcpip/transport/udp/endpoint.go +++ b/pkg/tcpip/transport/udp/endpoint.go @@ -369,7 +369,7 @@ func (e *endpoint) prepareForWrite(to *tcpip.FullAddress) (retry bool, err *tcpi // specified address is a multicast address. func (e *endpoint) connectRoute(nicID tcpip.NICID, addr tcpip.FullAddress, netProto tcpip.NetworkProtocolNumber) (stack.Route, tcpip.NICID, *tcpip.Error) { localAddr := e.ID.LocalAddress - if isBroadcastOrMulticast(localAddr) { + if e.isBroadcastOrMulticast(nicID, netProto, localAddr) { // A packet can only originate from a unicast address (i.e., an interface). localAddr = "" } @@ -1290,7 +1290,7 @@ func (e *endpoint) bindLocked(addr tcpip.FullAddress) *tcpip.Error { } nicID := addr.NIC - if len(addr.Addr) != 0 && !isBroadcastOrMulticast(addr.Addr) { + if len(addr.Addr) != 0 && !e.isBroadcastOrMulticast(addr.NIC, netProto, addr.Addr) { // A local unicast address was specified, verify that it's valid. nicID = e.stack.CheckLocalAddress(addr.NIC, netProto, addr.Addr) if nicID == 0 { @@ -1531,8 +1531,8 @@ func (e *endpoint) Stats() tcpip.EndpointStats { // Wait implements tcpip.Endpoint.Wait. func (*endpoint) Wait() {} -func isBroadcastOrMulticast(a tcpip.Address) bool { - return a == header.IPv4Broadcast || header.IsV4MulticastAddress(a) || header.IsV6MulticastAddress(a) +func (e *endpoint) isBroadcastOrMulticast(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { + return addr == header.IPv4Broadcast || header.IsV4MulticastAddress(addr) || header.IsV6MulticastAddress(addr) || e.stack.IsSubnetBroadcast(nicID, netProto, addr) } // SetOwner implements tcpip.Endpoint.SetOwner. |