| 653,6 → 653,94 |
|---|
| ret |
| |
| |
| |
| |
| |
| ;------------------------------------------------------------------ |
| ; |
| ; IPv4_output_raw |
| ; |
| ; IN: eax = socket ptr |
| ; ecx = data length |
| ; esi = data ptr |
| ; |
| ; OUT: / |
| ; |
| ;------------------------------------------------------------------ |
| align 4 |
| IPv4_output_raw: |
| |
| DEBUGF 1,"IPv4_output_raw: size=%u ptr=%x socket=%x\n", ecx, esi, eax |
| |
| cmp ecx, 1480 ;;;;; |
| jg .too_large |
| |
| sub esp, 8 |
| push esi eax |
| |
| call ARP_IP_to_MAC |
| |
| test eax, 0xffff0000 ; error bits |
| jnz .arp_error |
| |
| .continue: |
| |
| push ebx ; push the mac |
| push ax |
| |
| call IPv4_dest_to_dev |
| inc [IP_PACKETS_TX+edi] |
| mov ebx, [NET_DRV_LIST+edi] |
| lea eax, [ebx + ETH_DEVICE.mac] |
| mov edx, esp |
| mov ecx, [esp + 6+4] |
| add ecx, IPv4_Packet.DataOrOptional |
| mov di, ETHER_IPv4 |
| call ETH_output |
| jz .error |
| |
| add esp, 6 ; pop the mac |
| |
| mov dword[esp+4+4], edx |
| mov dword[esp+4+4+4], eax |
| |
| pop eax esi |
| ;; todo: check socket options if we should add header, or just compute checksum |
| |
| push edi ecx |
| rep movsb |
| pop ecx edi |
| |
| ; [edi + IPv4_Packet.VersionAndIHL] ; IPv4, normal length (no Optional header) |
| ; [edi + IPv4_Packet.TypeOfService] ; nothing special, just plain ip packet |
| ; [edi + IPv4_Packet.TotalLength] |
| ; [edi + IPv4_Packet.TotalLength] ; internet byte order |
| ; [edi + IPv4_Packet.FlagsAndFragmentOffset] |
| |
| mov [edi + IPv4_Packet.HeaderChecksum], 0 |
| |
| ; [edi + IPv4_Packet.TimeToLive] ; ttl shl 8 + protocol |
| ; [edi + IPv4_Packet.Protocol] |
| ; [edi + IPv4_Packet.Identification] ; fragment id |
| ; [edi + IPv4_Packet.SourceAddress] |
| ; [edi + IPv4_Packet.DestinationAddress] |
| |
| IPv4_checksum edi ;;;; todo: checksum for IP packet with options! |
| add edi, IPv4_Packet.DataOrOptional |
| DEBUGF 1,"IPv4 Packet for device %x created successfully\n", ebx |
| call [ebx + NET_DEVICE.transmit] |
| ret |
| |
| .error: |
| add esp, 6 |
| .arp_error: |
| add esp, 8+4+4 |
| .too_large: |
| DEBUGF 1,"IPv4_output_raw: Failed\n" |
| sub edi, edi |
| ret |
| |
| |
| ;-------------------------------------------------------- |
| ; |
| ; |