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Rev 2947 Rev 2948
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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: 2947 $
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$Revision: 2948 $
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;-----------------------------------------------------------------
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;-----------------------------------------------------------------
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;
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;
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        sub     ecx, eax
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        sub     ecx, eax
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        and     [ebx + TCP_SOCKET.t_flags], not (TH_PUSH or TH_FIN)
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        and     [ebx + TCP_SOCKET.t_flags], not (TH_PUSH or TH_FIN)
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  .no_excess_data:
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  .no_excess_data:
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;-----------------
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;-----------------
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; Record timestamp (737-746) TODO
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; Record timestamp (737-746)
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; If last ACK falls within this segments sequence numbers, record its timestamp
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; If last ACK falls within this segments sequence numbers, record its timestamp
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        test    [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP
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        test    [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP
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        dec     eax
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        dec     eax
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       @@:
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       @@:
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        sub     eax, ecx
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        sub     eax, ecx
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        jae     .no_timestamp
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        jae     .no_timestamp
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- 
 
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        DEBUGF  1,"Recording timestamp\n"
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        mov     eax, [esp + 4+4]                                  ; tcp_now
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        mov     eax, [esp + 4+4]                                ; tcp_now
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        mov     [ebx + TCP_SOCKET.ts_recent_age], eax
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        mov     [ebx + TCP_SOCKET.ts_recent_age], eax
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        mov     eax, [ebx + TCP_SOCKET.ts_val]
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        mov     eax, [ebx + TCP_SOCKET.ts_val]
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        mov     [ebx + TCP_SOCKET.ts_recent], eax
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        mov     [ebx + TCP_SOCKET.ts_recent], eax
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        cmp     eax, [ebx + TCP_SOCKET.SND_WND]
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        cmp     eax, [ebx + TCP_SOCKET.SND_WND]
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        jne     .reset_dupacks
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        jne     .reset_dupacks
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        DEBUGF  1,"TCP_input: Processing duplicate ACK\n"
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        DEBUGF  1,"TCP_input: Processing duplicate ACK\n"
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; If we have outstanidn data, other than a window probe, this is a completely duplicate ACK
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; If we have outstanding data, other than a window probe, this is a completely duplicate ACK
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; (window info didnt change) The ACK is the biggest we've seen and we've seen exactly our rexmt threshold of them,
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; (window info didnt change) The ACK is the biggest we've seen and we've seen exactly our rexmt threshold of them,
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; assume a packet has been dropped and retransmit it. Kludge snd_nxt & the congestion window so we send only this one packet.
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; assume a packet has been dropped and retransmit it. Kludge snd_nxt & the congestion window so we send only this one packet.
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; RTT measurements and retransmission timer  (912-926)
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; RTT measurements and retransmission timer  (912-926)
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; If we have a timestamp, update smoothed RTT
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; If we have a timestamp, update smoothed RTT
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        test    [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP
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        test    [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP
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        jne     .timestamp_not_present
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        jz      .timestamp_not_present
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        mov     eax, [esp+4+4]
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        mov     eax, [esp+4+4]
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        sub     eax, [ebx + TCP_SOCKET.ts_ecr]
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        sub     eax, [ebx + TCP_SOCKET.ts_ecr]
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        inc     eax
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        inc     eax