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Enable ff:ff:ff:ff:ff:ff w/no ADI a.k.a. broadcast. YOLO.

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This commit is contained in:
Adam Ierymenko 2013-07-06 15:56:12 -04:00
parent 7f3dea018c
commit 2eaac3891e
3 changed files with 16 additions and 3 deletions
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8
node/Switch.cpp
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@ -252,9 +252,11 @@ void Switch::onLocalEthernet(const SharedPtr<Network> &network,const MAC &from,c
if (to.isMulticast()) {
MulticastGroup mg(to,0);
// Handle special cases: IPv4 ARP
if ((etherType == ZT_ETHERTYPE_ARP)&&(data.size() == 28)&&(data[2] == 0x08)&&(data[3] == 0x00)&&(data[4] == 6)&&(data[5] == 4)&&(data[7] == 0x01))
mg = MulticastGroup::deriveMulticastGroupForAddressResolution(InetAddress(data.field(24,4),4,0));
if (to.isBroadcast()) {
// Cram IPv4 IP into ADI field to make IPv4 ARP broadcast channel specific and scalable
if ((etherType == ZT_ETHERTYPE_ARP)&&(data.size() == 28)&&(data[2] == 0x08)&&(data[3] == 0x00)&&(data[4] == 6)&&(data[5] == 4)&&(data[7] == 0x01))
mg = MulticastGroup::deriveMulticastGroupForAddressResolution(InetAddress(data.field(24,4),4,0));
}
// Remember this message's CRC, but don't drop if we've already seen it
// since it's our own.