diff options
Diffstat (limited to 'pkg/tcpip/stack/nic.go')
| -rw-r--r-- | pkg/tcpip/stack/nic.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/nic.go b/pkg/tcpip/stack/nic.go index 586ca873e..43d7c2ec4 100644 --- a/pkg/tcpip/stack/nic.go +++ b/pkg/tcpip/stack/nic.go @@ -399,6 +399,21 @@ func (n *NIC) DeliverNetworkPacket(linkEP LinkEndpoint, remote, _ tcpip.LinkAddr src, dst := netProto.ParseAddresses(vv.First()) + // If the packet is destined to the IPv4 Broadcast address, then make a + // route to each IPv4 network endpoint and let each endpoint handle the + // packet. + if dst == header.IPv4Broadcast { + for _, ref := range n.endpoints { + if ref.protocol == header.IPv4ProtocolNumber && ref.tryIncRef() { + r := makeRoute(protocol, dst, src, linkEP.LinkAddress(), ref) + r.RemoteLinkAddress = remote + ref.ep.HandlePacket(&r, vv) + ref.decRef() + } + } + return + } + if ref := n.getRef(protocol, dst); ref != nil { r := makeRoute(protocol, dst, src, linkEP.LinkAddress(), ref) r.RemoteLinkAddress = remote |