diff options
Diffstat (limited to 'pkg/tcpip/network/ipv4')
| -rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index f08b008ac..44c85bdb8 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -614,10 +614,6 @@ func (e *endpoint) WriteHeaderIncludedPacket(r *stack.Route, pkt *stack.PacketBu ipH.SetSourceAddress(r.LocalAddress()) } - // Set the destination. If the packet already included a destination, it will - // be part of the route anyways. - ipH.SetDestinationAddress(r.RemoteAddress()) - // Set the packet ID when zero. if ipH.ID() == 0 { // RFC 6864 section 4.3 mandates uniqueness of ID values for @@ -860,6 +856,13 @@ func (e *endpoint) handleLocalPacket(pkt *stack.PacketBuffer, canSkipRXChecksum } func (e *endpoint) handleValidatedPacket(h header.IPv4, pkt *stack.PacketBuffer, inNICName string) { + // Raw socket packets are delivered based solely on the transport protocol + // number. We only require that the packet be valid IPv4, and that they not + // be fragmented. + if !h.More() && h.FragmentOffset() == 0 { + e.dispatcher.DeliverRawPacket(h.TransportProtocol(), pkt) + } + pkt.NICID = e.nic.ID() stats := e.stats stats.ip.ValidPacketsReceived.Increment() @@ -995,6 +998,9 @@ func (e *endpoint) handleValidatedPacket(h header.IPv4, pkt *stack.PacketBuffer, // to do it here. h.SetTotalLength(uint16(pkt.Data().Size() + len(h))) h.SetFlagsFragmentOffset(0, 0) + + // Now that the packet is reassembled, it can be sent to raw sockets. + e.dispatcher.DeliverRawPacket(h.TransportProtocol(), pkt) } stats.ip.PacketsDelivered.Increment() |