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Merge pull request #152 from retu2libc/master

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Drop ethernet frames not destined for us or broadcast
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Arsenic Blood 2024-03-05 02:01:42 -05:00 committed by GitHub
commit 91fff8c9cf
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10
src/Home/Net/Utilities/NetHandler.ZC
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@ -37,6 +37,16 @@ U0 NetQueueEntryHandle(CNetQueueEntry *entry)
EthernetFrameParse(&ethernet_frame, entry->frame, entry->packet_length); EthernetFrameParse(&ethernet_frame, entry->frame, entry->packet_length);
U8 *mac = EthernetMACGet();
Bool is_our_mac = !MemCompare(mac, ethernet_frame.destination_address, MAC_ADDRESS_LENGTH); // check the RX packet MAC against local MAC
Bool is_broadcast = !MemCompare(ethernet_globals.ethernet_broadcast, ethernet_frame.destination_address, MAC_ADDRESS_LENGTH); // check the RX packet MAC against broadcast MAC
if (!is_our_mac && !is_broadcast)
{
NetLog("HANDLE NETQUEUE ENTRY: Not for us, discarding.");
return;
}
switch (ethernet_frame.ethertype) switch (ethernet_frame.ethertype)
{ {
case ETHERTYPE_ARP: case ETHERTYPE_ARP: