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Rev 5584 Rev 5842
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;;          GNU GENERAL PUBLIC LICENSE                             ;;
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;;          GNU GENERAL PUBLIC LICENSE                             ;;
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;;             Version 2, June 1991                                ;;
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;;             Version 2, June 1991                                ;;
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;;                                                                 ;;
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;;                                                                 ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 5584 $
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$Revision: 5842 $
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;   and insert packets into sockets when needed
 131 
;   and insert packets into sockets when needed
132 
;
 132 
;
133 
;  IN:  Pointer to buffer in [esp]
 133 
;  IN:  Pointer to buffer in [esp]
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;       ebx = pointer to device struct
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;       ebx = pointer to device struct
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;       ecx = ICMP Packet size
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;       ecx = ICMP Packet size
- 
 
 136 
;       edx = ptr to IPv4 header
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;       esi = ptr to ICMP Packet data
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;       esi = ptr to ICMP Packet data
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;       edi = ptr to ipv4 source and dest address
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;       edi = interface number*4
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;
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;
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;  OUT: /
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;  OUT: /
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;
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;
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;-----------------------------------------------------------------
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;-----------------------------------------------------------------
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align 4
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align 4
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ICMP_input:
 144 
ICMP_input:
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 145 
 
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- 
 
 146 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "ICMP_input\n"
- 
 
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- 
 
 148 
; Dump all multicasts and broadcasts
- 
 
 149 
        mov     eax, [IP_LIST + edi]
- 
 
 150 
        cmp     eax, [edx + IPv4_header.DestinationAddress]
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "ICMP_input\n"
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        jne     .dump
146 
 
 152 
 
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; Check the checksum
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; Check the checksum
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        push    esi ecx
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        push    esi ecx edx
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        push    [esi + ICMP_header.Checksum]
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        push    [esi + ICMP_header.Checksum]
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        mov     [esi + ICMP_header.Checksum], 0
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        mov     [esi + ICMP_header.Checksum], 0
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        xor     edx, edx
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        xor     edx, edx
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        call    checksum_1
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        call    checksum_1
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        call    checksum_2
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        call    checksum_2
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        pop     si
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        pop     si
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        cmp     dx, si
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        cmp     dx, si
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        pop     ecx esi
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        pop     edx ecx esi
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        jne     .checksum_mismatch
 - 
 
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 - 
 
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "ICMP_input: Checksum OK\n"
 - 
 
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 - 
 
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; Ualidate device ptr
 - 
 
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        mov     eax, edi
 - 
 
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        call    NET_ptr_to_num4
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        jne     .checksum_mismatch
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        cmp     edi, -1
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        je      .dump
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "ICMP_input: Checksum OK\n"
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 166 
 
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        pusha
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        pusha
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        mov     ecx, socket_mutex
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        mov     ecx, socket_mutex
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        call    mutex_lock
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        call    mutex_lock
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        popa
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        popa
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- 
 
 179 
 
- 
 
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        add     ecx, esi
179 
 
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        sub     ecx, edx
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        mov     edx, [eax]              ; ipv4 source address
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        mov     esi, edx
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        mov     eax, net_sockets
 - 
 
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  .try_more:
 - 
 
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;        mov      , [esi + ICMP_header.Identifier]
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        mov     eax, net_sockets
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  .next_socket:
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  .next_socket:
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        mov     eax, [eax + SOCKET.NextPtr]
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        mov     eax, [eax + SOCKET.NextPtr]
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        or      eax, eax
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        or      eax, eax
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        jne     .next_socket
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        jne     .next_socket
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 191 
 
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        cmp     [eax + SOCKET.Protocol], IP_PROTO_ICMP
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        cmp     [eax + SOCKET.Protocol], IP_PROTO_ICMP
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        jne     .next_socket
 - 
 
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 - 
 
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        cmp     [eax + IP_SOCKET.RemoteIP], edx
 - 
 
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        jne     .next_socket
 - 
 
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 - 
 
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;        cmp     [eax + ICMP_SOCKET.Identifier],
 - 
 
199 
;        jne     .next_socket
 193 
        jne     .next_socket
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        pusha
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        pusha
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        mov     ecx, socket_mutex
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        mov     ecx, socket_mutex
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;
 368 
;
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; ICMP_output_raw
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; ICMP_output_raw
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;
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;
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; IN:  eax = socket ptr
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; IN:  eax = socket ptr
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;      ecx = data length
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;      ecx = data length
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;      esi = data offset
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;      edx = data pointer
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;
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;
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;-----------------------------------------------------------------
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;-----------------------------------------------------------------
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align 4
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align 4
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ICMP_output_raw:
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ICMP_output_raw:
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384 
 
 378 
 
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "Creating ICMP Packet for socket %x, data ptr=%x\n", eax, edx
 379 
        DEBUGF  DEBUG_NETWORK_VERBOSE, "Creating ICMP Packet for socket %x, data ptr=%x\n", eax, edx
386 
 
 - 
 
387 
        push    edx
 - 
 
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 - 
 
389 
        mov     di, IP_PROTO_ICMP SHL 8 + 128  ; TTL
 380 
 
- 
 
 381 
        push    edx
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        mov     edx, [eax + IP_SOCKET.LocalIP]
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        mov     ebx, [eax + IP_SOCKET.device]
- 
 
 383 
        mov     edx, [eax + IP_SOCKET.LocalIP]
- 
 
 384 
        mov     edi, [eax + IP_SOCKET.RemoteIP]
391 
        mov     ebx, [eax + IP_SOCKET.device]
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        mov     al, [eax + IP_SOCKET.ttl]
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        mov     eax, [eax + IP_SOCKET.RemoteIP]
 386 
        mov     ah, IP_PROTO_ICMP
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        call    IPv4_output
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        call    IPv4_output
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        jz      .exit
 388 
        jz      .fail
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 389 
 
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415 
        jnz     @f
 409 
        jnz     @f
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        call    NET_ptr_to_num4
 410 
        call    NET_ptr_to_num4
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        inc     [ICMP_PACKETS_TX + edi]
 411 
        inc     [ICMP_PACKETS_TX + edi]
418 
       @@:
 412 
  @@:
419 
        ret
 413 
        ret
- 
 
 414 
 
420 
  .exit:
 415 
  .fail:
- 
 
 416 
        pop     edx
421 
        DEBUGF  DEBUG_NETWORK_ERROR, "Creating ICMP Packet failed\n"
 417 
        DEBUGF  DEBUG_NETWORK_ERROR, "Creating ICMP Packet failed\n"
- 
 
 418 
        or      eax, -1
- 
 
 419 
        mov     ebx, EMSGSIZE           ;;; FIXME
422 
        ret
 420 
        ret