| 68,6 → 68,10 |
|---|
| ; pointer to device struct in ebx |
| ; UDP Packet size in ecx |
| ; pointer to UDP Packet in edx |
| ; |
| ; esi = ipv4 source address |
| ; edi = ipv4 dest address |
| ; |
| ; OUT: / |
| ; |
| ;----------------------------------------------------------------- |
| 80,12 → 84,14 |
|---|
| cmp [edx + UDP_Packet.Checksum], 0 |
| jz .no_checksum |
| |
| xchg edi, esi ; save ipv4 source address so we can look it up later |
| |
| push edx |
| |
| push esi |
| push edi |
| mov esi, edx |
| call UDP_checksum |
| call UDP_checksum ; this destroys edx, ecx and esi (but not edi! :) |
| |
| pop edx |
| |
| 122,9 → 128,7 |
|---|
| cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], 0xffffffff |
| je .ok1 |
| |
| ; mov esi, [esp] ; start of data (ethernet header) |
| ; mov esi, [esi + ETH_FRAME.Data + IPv4_Packet.SourceAddress] ; get the Source address from the IP Packet FIXME |
| cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], edi ;esi |
| cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], edi ; edi is IPv4 destination address |
| jne .try_more ; Quit if the source IP is not valid, check for more sockets with this IP/PORT combination |
| |
| |