tristan/ZealOS
1
0
Fork 0
mirror of https://github.com/Zeal-Operating-System/ZealOS.git synced 2024-12-25 23:10:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Drop ethernet frames not destined for us or broadcast

Browse source
This commit is contained in:
retu2libc 2024-02-25 16:13:41 -05:00
parent c3dfe78ceb
commit 1fc9a7062c
1 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/Home/Net/Utilities/NetHandler.ZC
View file

@ -37,6 +37,16 @@ U0 NetQueueEntryHandle(CNetQueueEntry *entry)
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)
{
case ETHERTYPE_ARP: