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Rev 3600 Rev 3601
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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: 2924 $
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$Revision: 2924 $
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "got echo request\n"
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        DEBUGF  DEBUG_NETWORK_VERBOSE, "got echo request\n"
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        mov     [edx + ICMP_header.Type], ICMP_ECHOREPLY        ; Change Packet type to reply
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        mov     [edx + ICMP_header.Type], ICMP_ECHOREPLY        ; Change Packet type to reply
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        mov     esi, [esp]                                      ; Start of buffer
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        cmp     dword[edi + 4], 1 shl 24 + 127
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        je      .loopback
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        mov     esi, [esp]                                      ; Start of buffer
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; Update stats (and validate device ptr)
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; Update stats (and validate device ptr)
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        call    NET_ptr_to_num
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        call    NET_ptr_to_num
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        cmp     edi,-1
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        cmp     edi, -1
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        je      .dump
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        je      .dump
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        inc     [ICMP_PACKETS_RX + 4*edi]
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        inc     [ICMP_PACKETS_TX + 4*edi]
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        cmp     ebx, LOOPBACK_DEVICE
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        je      .loopback
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        inc     [ICMP_PACKETS_RX + 4*edi]
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        inc     [ICMP_PACKETS_TX + 4*edi]
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; FIXME: dont assume device is an ethernet device!
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; exchange dest and source address in IP header
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; exchange dest and source address in IP header
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; exchange dest and source MAC in ETH header
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; exchange dest and source MAC in ETH header
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        push    dword [esi + ETH_header.DstMAC]
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        push    dword [esi + ETH_header.DstMAC]
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        push    dword [esi + ETH_header.SrcMAC]
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        push    dword [esi + ETH_header.SrcMAC]
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        pop     dword [esi + ETH_header.DstMAC]
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        pop     dword [esi + ETH_header.DstMAC]
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        pop     dword [esi + ETH_header.SrcMAC]
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        pop     dword [esi + ETH_header.SrcMAC]
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        push    word [esi + ETH_header.DstMAC + 4]
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        push    word [esi + ETH_header.DstMAC + 4]
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        push    word [esi + ETH_header.SrcMAC + 4]
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        push    word [esi + ETH_header.SrcMAC + 4]
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        pop     word [esi + ETH_header.DstMAC + 4]
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        pop     word [esi + ETH_header.DstMAC + 4]
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        pop     word [esi + ETH_header.SrcMAC + 4]
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        pop     word [esi + ETH_header.SrcMAC + 4]
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        add     esi, sizeof.ETH_header-2
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        add     esi, sizeof.ETH_header-4
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  .loopback:
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  .loopback:
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        add     esi, 2
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        add     esi, 4