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Rev 2614 Rev 2877
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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: 2614 $
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$Revision: 2877 $
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; IN:  eax = dest ip
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; IN:  eax = dest ip
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;      ebx = source ip
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;      ebx = source ip
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;      ecx = data length
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;      ecx = data length
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;      dh  = type
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;      dh  = type
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;      dl  = code
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;      dl  = code
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;      high 16 bits of edx = fragment id (for IP header)
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;      esi = data offset
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;      esi = data offset
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;      edi = identifier shl 16 + sequence number
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;      edi = identifier shl 16 + sequence number
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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:
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ICMP_output:
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        DEBUGF  1,"Creating ICMP Packet\n"
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        DEBUGF  1,"Creating ICMP Packet\n"
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        push    esi edi edx
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        push    esi edi dx
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        mov     ebx, [eax + IP_SOCKET.LocalIP]
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        mov     edx, [eax + IP_SOCKET.LocalIP]
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        mov     eax, [eax + IP_SOCKET.RemoteIP]
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        add     ecx, sizeof.ICMP_header
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        mov     di , IP_PROTO_ICMP SHL 8 + 128  ; TTL
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        mov     eax, [eax + IP_SOCKET.RemoteIP]
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        shr     edx, 16
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        add     ecx, sizeof.ICMP_header
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        mov     di, IP_PROTO_ICMP SHL 8 + 128           ; TTL
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        call    IPv4_output
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        jz      .exit
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        call    IPv4_output
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        DEBUGF  1,"full icmp packet size: %u\n", edx
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        pop     eax
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        jz      .exit
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        mov     word [edi + ICMP_header.Type], ax       ; Write both type and code bytes at once
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        pop     eax
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        DEBUGF  1,"full icmp packet size: %u\n", edx
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        mov     [edi + ICMP_header.SequenceNumber], ax
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        shr     eax, 16
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        pop     word [edi + ICMP_header.Type]           ; Write both type and code bytes at once
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        mov     [edi + ICMP_header.Identifier], ax
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        pop     dword [edi + ICMP_header.Identifier]    ; identifier and sequence number
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        mov     [edi + ICMP_header.Checksum], 0
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        mov     [edi + ICMP_header.Checksum], 0
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        push    eax ebx ecx edx
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        push    ebx ecx edx
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        mov     esi, edi
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        mov     esi, edi
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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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        DEBUGF  1,"Sending ICMP Packet\n"
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        DEBUGF  1,"Sending ICMP Packet\n"
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        call    [ebx + NET_DEVICE.transmit]
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        call    [ebx + NET_DEVICE.transmit]
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        ret
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        ret
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  .exit:
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  .exit:
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        DEBUGF  1,"Creating ICMP Packet failed\n"
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        DEBUGF  1,"Creating ICMP Packet failed\n"
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        add     esp, 3*4
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        add     esp,2*4+2
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        ret
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        ret
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        DEBUGF  1,"Creating ICMP Packet for socket %x, data ptr=%x\n", eax, edx
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        DEBUGF  1,"Creating ICMP Packet for socket %x, data ptr=%x\n", eax, edx
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        push    edx
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        push    edx
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 - 
 
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        mov     di, IP_PROTO_ICMP SHL 8 + 128  ; TTL
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        shr     edx, 16
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        mov     di, IP_PROTO_ICMP SHL 8 + 128  ; TTL
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        mov     ebx, [eax + IP_SOCKET.LocalIP]
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        mov     edx, [eax + IP_SOCKET.LocalIP]
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        mov     eax, [eax + IP_SOCKET.RemoteIP]
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        mov     eax, [eax + IP_SOCKET.RemoteIP]
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        call    IPv4_output
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        call    IPv4_output