| 24,9 → 24,10 |
|---|
| ; |
| ; IN: [esp] = ptr to buffer |
| ; ebx = ptr to device struct |
| ; ecx = segment size |
| ; ecx = TCP segment size |
| ; edx = ptr to IPv4 header |
| ; esi = ptr to TCP segment |
| ; edi = ptr to ipv4 source address, followed by ipv4 dest address |
| ; edi = interface number*4 |
| ; |
| ; OUT: / |
| ; |
| 37,13 → 38,14 |
|---|
| |
| ; record the current time |
| push [timer_ticks] ; in 1/100 seconds |
| push ebx ecx esi edi ; mind the order (see TCP_queue_entry struct) |
| push ebx ecx esi edx ; mind the order (see TCP_queue_entry struct) |
| mov esi, esp |
| |
| push edi |
| add_to_queue TCP_queue, TCP_QUEUE_SIZE, sizeof.TCP_queue_entry, .fail |
| pop edi |
| add esp, sizeof.TCP_queue_entry |
| |
| call NET_ptr_to_num4 |
| inc [TCP_segments_rx + edi] |
| |
| xor edx, edx |
| 55,6 → 57,7 |
|---|
| ret |
| |
| .fail: |
| pop edi |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP incoming queue is full, discarding packet!\n" |
| |
| call NET_ptr_to_num4 |
| 94,7 → 97,7 |
|---|
| |
| mov ebx, [esi + TCP_queue_entry.device_ptr] |
| mov ecx, [esi + TCP_queue_entry.segment_size] |
| mov edi, [esi + TCP_queue_entry.ip_ptr] ; ptr to ipv4 source address, followed by ipv4 destination address |
| mov edi, [esi + TCP_queue_entry.ip_ptr] ; ptr to ipv4 header |
| mov esi, [esi + TCP_queue_entry.segment_ptr] ; change esi last |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: size=%u time=%d\n", ecx, [timer_ticks] |
| 111,7 → 114,7 |
|---|
| push ecx esi |
| pushw [esi + TCP_header.Checksum] |
| mov [esi + TCP_header.Checksum], 0 |
| TCP_checksum (edi), (edi+4) |
| TCP_checksum (edi+IPv4_header.SourceAddress), (edi+IPv4_header.DestinationAddress) |
| pop cx ; previous checksum |
| cmp cx, dx |
| pop edx ecx |
| 170,7 → 173,7 |
|---|
| jne .socket_loop |
| |
| mov eax, [ebx + IP_SOCKET.RemoteIP] |
| cmp eax, [edi] ; Ipv4 source address |
| cmp eax, [edi + IPv4_header.SourceAddress] |
| je @f |
| test eax, eax |
| jnz .socket_loop |
| 233,7 → 236,7 |
|---|
| call mutex_unlock |
| popa |
| |
| push ecx edx esi edi ;;; |
| push ecx edx esi edi |
| call SOCKET_fork |
| pop edi esi edx ecx |
| |
| 244,7 → 247,7 |
|---|
| |
| mov [temp_bits], TCP_BIT_DROPSOCKET |
| |
| push dword [edi + 4] ; Ipv4 destination addres |
| push [edi + IPv4_header.DestinationAddress] |
| pop [ebx + IP_SOCKET.LocalIP] |
| |
| push [edx + TCP_header.DestinationPort] |
| 1211,7 → 1214,7 |
|---|
| |
| ;;; TODO: check if it's a broadcast or multicast, and drop if so |
| |
| push dword [edi] ; Ipv4 source addres |
| push [edi + IPv4_header.SourceAddress] |
| pop [ebx + IP_SOCKET.RemoteIP] |
| |
| push [edx + TCP_header.SourcePort] |
| 1673,11 → 1676,13 |
|---|
| |
| .respond_seg_ack: |
| mov cl, TH_RST |
| xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
| call TCP_respond_segment |
| jmp .drop_no_socket |
| |
| .respond_seg_syn: |
| mov cl, TH_RST + TH_ACK |
| xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
| call TCP_respond_segment |
| jmp .drop_no_socket |
| |