Rev 5984 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 5984 | Rev 6078 | ||
|---|---|---|---|
| Line 12... | Line 12... | ||
| 12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
| 13 | ;; Version 2, June 1991 ;; |
13 | ;; Version 2, June 1991 ;; |
| 14 | ;; ;; |
14 | ;; ;; |
| 15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 16... | Line 16... | ||
| 16 | 16 | ||
| Line 17... | Line 17... | ||
| 17 | $Revision: 5976 $ |
17 | $Revision: 6011 $ |
| 18 | 18 | ||
| 19 | ;-----------------------------------------------------------------; |
19 | ;-----------------------------------------------------------------; |
| 20 | ; ; |
20 | ; ; |
| Line 29... | Line 29... | ||
| 29 | ; ; |
29 | ; ; |
| 30 | ; OUT: / ; |
30 | ; OUT: / ; |
| 31 | ; ; |
31 | ; ; |
| 32 | ;-----------------------------------------------------------------; |
32 | ;-----------------------------------------------------------------; |
| 33 | align 4 |
33 | align 4 |
| 34 | TCP_input: |
34 | tcp_input: |
| Line 35... | Line 35... | ||
| 35 | 35 | ||
| 36 | ; record the current time |
36 | ; record the current time |
| 37 | push [timer_ticks] ; in 1/100 seconds |
37 | push [timer_ticks] ; in 1/100 seconds |
| 38 | push ebx ecx esi edx ; mind the order (see TCP_queue_entry struct) |
38 | push ebx ecx esi edx ; mind the order (see TCP_queue_entry struct) |
| Line 55... | Line 55... | ||
| 55 | 55 | ||
| 56 | .fail: |
56 | .fail: |
| 57 | pop edi |
57 | pop edi |
| Line 58... | Line 58... | ||
| 58 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP incoming queue is full, discarding packet!\n" |
58 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP incoming queue is full, discarding packet!\n" |
| 59 | 59 | ||
| Line 60... | Line 60... | ||
| 60 | call NET_ptr_to_num4 |
60 | call net_ptr_to_num4 |
| 61 | inc [TCP_segments_missed + edi] |
61 | inc [TCP_segments_missed + edi] |
| 62 | 62 | ||
| Line 63... | Line 63... | ||
| 63 | add esp, sizeof.TCP_queue_entry - 4 |
63 | add esp, sizeof.TCP_queue_entry - 4 |
| 64 | call NET_BUFF_free |
64 | call net_buff_free |
| Line 65... | Line 65... | ||
| 65 | ret |
65 | ret |
| 66 | 66 | ||
| 67 | 67 | ||
| 68 | 68 | ||
| Line 109... | Line 109... | ||
| 109 | jnz .checksum_ok |
109 | jnz .checksum_ok |
| Line 110... | Line 110... | ||
| 110 | 110 | ||
| 111 | push ecx esi |
111 | push ecx esi |
| 112 | pushw [esi + TCP_header.Checksum] |
112 | pushw [esi + TCP_header.Checksum] |
| 113 | mov [esi + TCP_header.Checksum], 0 |
113 | mov [esi + TCP_header.Checksum], 0 |
| 114 | TCP_checksum (edi+IPv4_header.SourceAddress), (edi+IPv4_header.DestinationAddress) |
114 | tcp_checksum (edi+IPv4_header.SourceAddress), (edi+IPv4_header.DestinationAddress) |
| 115 | pop cx ; previous checksum |
115 | pop cx ; previous checksum |
| 116 | cmp cx, dx |
116 | cmp cx, dx |
| 117 | pop edx ecx |
117 | pop edx ecx |
| 118 | jne .drop_no_socket |
118 | jne .drop_no_socket |
| Line 232... | Line 232... | ||
| 232 | lea ecx, [ebx + SOCKET.mutex] |
232 | lea ecx, [ebx + SOCKET.mutex] |
| 233 | call mutex_unlock |
233 | call mutex_unlock |
| 234 | popa |
234 | popa |
| Line 235... | Line 235... | ||
| 235 | 235 | ||
| 236 | push ecx edx esi edi |
236 | push ecx edx esi edi |
| 237 | call SOCKET_fork |
237 | call socket_fork |
| Line 238... | Line 238... | ||
| 238 | pop edi esi edx ecx |
238 | pop edi esi edx ecx |
| 239 | 239 | ||
| Line 310... | Line 310... | ||
| 310 | 310 | ||
| 311 | xor eax, eax |
311 | xor eax, eax |
| 312 | lodsw |
312 | lodsw |
| 313 | rol ax, 8 |
313 | rol ax, 8 |
| 314 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Maxseg=%u\n", eax |
314 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Maxseg=%u\n", eax |
| 315 | call TCP_mss |
315 | call tcp_mss |
| 316 | @@: |
316 | @@: |
| Line 317... | Line 317... | ||
| 317 | jmp .opt_loop |
317 | jmp .opt_loop |
| Line 471... | Line 471... | ||
| 471 | 471 | ||
| 472 | ; Delete acknowledged bytes from send buffer |
472 | ; Delete acknowledged bytes from send buffer |
| 473 | pusha |
473 | pusha |
| 474 | mov ecx, eax |
474 | mov ecx, eax |
| 475 | lea eax, [ebx + STREAM_SOCKET.snd] |
475 | lea eax, [ebx + STREAM_SOCKET.snd] |
| 476 | call SOCKET_ring_free |
476 | call socket_ring_free |
| Line 477... | Line 477... | ||
| 477 | popa |
477 | popa |
| Line 478... | Line 478... | ||
| 478 | 478 | ||
| 479 | ; Update RTT estimators |
479 | ; Update RTT estimators |
| 480 | 480 | ||
| 481 | test [temp_bits], TCP_BIT_TIMESTAMP |
481 | test [temp_bits], TCP_BIT_TIMESTAMP |
| 482 | jz .no_timestamp_rtt |
482 | jz .no_timestamp_rtt |
| 483 | mov eax, [timestamp] |
483 | mov eax, [timestamp] |
| 484 | sub eax, [ebx + TCP_SOCKET.ts_ecr] |
484 | sub eax, [ebx + TCP_SOCKET.ts_ecr] |
| 485 | inc eax |
485 | inc eax |
| Line 486... | Line 486... | ||
| 486 | call TCP_xmit_timer |
486 | call tcp_xmit_timer |
| 487 | jmp .rtt_done |
487 | jmp .rtt_done |
| 488 | .no_timestamp_rtt: |
488 | .no_timestamp_rtt: |
| 489 | 489 | ||
| 490 | cmp [ebx + TCP_SOCKET.t_rtt], 0 |
490 | cmp [ebx + TCP_SOCKET.t_rtt], 0 |
| 491 | je .rtt_done |
491 | je .rtt_done |
| 492 | mov eax, [edx + TCP_header.AckNumber] |
492 | mov eax, [edx + TCP_header.AckNumber] |
| 493 | cmp eax, [ebx + TCP_SOCKET.t_rtseq] |
493 | cmp eax, [ebx + TCP_SOCKET.t_rtseq] |
| Line 494... | Line 494... | ||
| 494 | jbe .rtt_done |
494 | jbe .rtt_done |
| 495 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
495 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
| 496 | call TCP_xmit_timer |
496 | call tcp_xmit_timer |
| Line 509... | Line 509... | ||
| 509 | call mutex_unlock |
509 | call mutex_unlock |
| 510 | popa |
510 | popa |
| Line 511... | Line 511... | ||
| 511 | 511 | ||
| 512 | ; Awaken waiting processes |
512 | ; Awaken waiting processes |
| 513 | mov eax, ebx |
513 | mov eax, ebx |
| Line 514... | Line 514... | ||
| 514 | call SOCKET_notify |
514 | call socket_notify |
| 515 | 515 | ||
| Line 516... | Line 516... | ||
| 516 | ; Generate more output |
516 | ; Generate more output |
| Line 517... | Line 517... | ||
| 517 | call TCP_output |
517 | call tcp_output |
| 518 | 518 | ||
| Line 538... | Line 538... | ||
| 538 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Header prediction: we are receiving %u bytes\n", ecx |
538 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Header prediction: we are receiving %u bytes\n", ecx |
| Line 539... | Line 539... | ||
| 539 | 539 | ||
| 540 | mov esi, [dataoffset] |
540 | mov esi, [dataoffset] |
| 541 | add esi, edx |
541 | add esi, edx |
| 542 | lea eax, [ebx + STREAM_SOCKET.rcv] |
542 | lea eax, [ebx + STREAM_SOCKET.rcv] |
| 543 | call SOCKET_ring_write ; Add the data to the socket buffer |
543 | call socket_ring_write ; Add the data to the socket buffer |
| Line 544... | Line 544... | ||
| 544 | add [ebx + TCP_SOCKET.RCV_NXT], ecx ; Update sequence number with number of bytes we have copied |
544 | add [ebx + TCP_SOCKET.RCV_NXT], ecx ; Update sequence number with number of bytes we have copied |
| 545 | 545 | ||
| Line 546... | Line 546... | ||
| 546 | mov eax, ebx |
546 | mov eax, ebx |
| Line 547... | Line 547... | ||
| 547 | call SOCKET_notify |
547 | call socket_notify |
| Line 659... | Line 659... | ||
| 659 | jbe .not_terminated |
659 | jbe .not_terminated |
| 660 | test ecx, ecx |
660 | test ecx, ecx |
| 661 | jz .not_terminated |
661 | jz .not_terminated |
| Line 662... | Line 662... | ||
| 662 | 662 | ||
| 663 | mov eax, ebx |
663 | mov eax, ebx |
| 664 | call TCP_close |
664 | call tcp_close |
| 665 | inc [TCPS_rcvafterclose] |
665 | inc [TCPS_rcvafterclose] |
| Line 666... | Line 666... | ||
| 666 | jmp .respond_seg_reset |
666 | jmp .respond_seg_reset |
| 667 | 667 | ||
| Line 689... | Line 689... | ||
| 689 | jne .no_new_request |
689 | jne .no_new_request |
| 690 | ; mov edx, [ebx + TCP_SOCKET.RCV_NXT] |
690 | ; mov edx, [ebx + TCP_SOCKET.RCV_NXT] |
| 691 | ; cmp edx, [edx + TCP_header.SequenceNumber] |
691 | ; cmp edx, [edx + TCP_header.SequenceNumber] |
| 692 | ; add edx, 64000 ; TCP_ISSINCR FIXME |
692 | ; add edx, 64000 ; TCP_ISSINCR FIXME |
| 693 | mov eax, ebx |
693 | mov eax, ebx |
| 694 | call TCP_close |
694 | call tcp_close |
| 695 | jmp .findpcb ; FIXME: skip code for unscaling window, ... |
695 | jmp .findpcb ; FIXME: skip code for unscaling window, ... |
| 696 | .no_new_request: |
696 | .no_new_request: |
| Line 697... | Line 697... | ||
| 697 | 697 | ||
| 698 | ; If window is closed, we can only take segments at window edge, and have to drop data and PUSH from |
698 | ; If window is closed, we can only take segments at window edge, and have to drop data and PUSH from |
| Line 777... | Line 777... | ||
| 777 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Closing connection\n" |
777 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Closing connection\n" |
| Line 778... | Line 778... | ||
| 778 | 778 | ||
| 779 | mov [ebx + TCP_SOCKET.t_state], TCPS_CLOSED |
779 | mov [ebx + TCP_SOCKET.t_state], TCPS_CLOSED |
| 780 | ;;; TODO: update stats (tcp drops) |
780 | ;;; TODO: update stats (tcp drops) |
| 781 | mov eax, ebx |
781 | mov eax, ebx |
| 782 | call TCP_close |
782 | call tcp_close |
| Line 783... | Line 783... | ||
| 783 | jmp .drop_no_socket |
783 | jmp .drop_no_socket |
| 784 | 784 | ||
| Line 785... | Line 785... | ||
| 785 | .rst_close: |
785 | .rst_close: |
| 786 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Closing with reset\n" |
786 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Closing with reset\n" |
| 787 | 787 | ||
| Line 788... | Line 788... | ||
| 788 | mov eax, ebx |
788 | mov eax, ebx |
| Line 789... | Line 789... | ||
| 789 | call TCP_close |
789 | call tcp_close |
| Line 797... | Line 797... | ||
| 797 | test [edx + TCP_header.Flags], TH_SYN |
797 | test [edx + TCP_header.Flags], TH_SYN |
| 798 | jz .not_syn_full |
798 | jz .not_syn_full |
| Line 799... | Line 799... | ||
| 799 | 799 | ||
| 800 | mov eax, ebx |
800 | mov eax, ebx |
| 801 | mov ebx, ECONNRESET |
801 | mov ebx, ECONNRESET |
| 802 | call TCP_drop |
802 | call tcp_drop |
| 803 | jmp .drop_with_reset |
803 | jmp .drop_with_reset |
| Line 804... | Line 804... | ||
| 804 | .not_syn_full: |
804 | .not_syn_full: |
| 805 | 805 | ||
| Line 822... | Line 822... | ||
| 822 | ja .drop_with_reset |
822 | ja .drop_with_reset |
| Line 823... | Line 823... | ||
| 823 | 823 | ||
| Line 824... | Line 824... | ||
| 824 | ;;; TODO: update stats |
824 | ;;; TODO: update stats |
| 825 | 825 | ||
| 826 | mov eax, ebx |
826 | mov eax, ebx |
| Line 827... | Line 827... | ||
| 827 | call SOCKET_is_connected |
827 | call socket_is_connected |
| Line 828... | Line 828... | ||
| 828 | mov [ebx + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
828 | mov [ebx + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
| Line 836... | Line 836... | ||
| 836 | 836 | ||
| 837 | push word [ebx + TCP_SOCKET.requested_s_scale] ; Set send and receive scale factors to the received values |
837 | push word [ebx + TCP_SOCKET.requested_s_scale] ; Set send and receive scale factors to the received values |
| 838 | pop word [ebx + TCP_SOCKET.SND_SCALE] |
838 | pop word [ebx + TCP_SOCKET.SND_SCALE] |
| Line 839... | Line 839... | ||
| 839 | @@: |
839 | @@: |
| Line 840... | Line 840... | ||
| 840 | 840 | ||
| 841 | call TCP_reassemble |
841 | call tcp_reassemble |
| 842 | 842 | ||
| Line 914... | Line 914... | ||
| 914 | lea ecx, [ebx + SOCKET.mutex] |
914 | lea ecx, [ebx + SOCKET.mutex] |
| 915 | call mutex_unlock |
915 | call mutex_unlock |
| Line 916... | Line 916... | ||
| 916 | 916 | ||
| 917 | ; retransmit missing segment |
917 | ; retransmit missing segment |
| 918 | mov eax, [esp] |
918 | mov eax, [esp] |
| Line 919... | Line 919... | ||
| 919 | call TCP_output |
919 | call tcp_output |
| 920 | 920 | ||
| 921 | ; Lock the socket again |
921 | ; Lock the socket again |
| 922 | mov ecx, [esp] |
922 | mov ecx, [esp] |
| Line 953... | Line 953... | ||
| 953 | lea ecx, [ebx + SOCKET.mutex] |
953 | lea ecx, [ebx + SOCKET.mutex] |
| 954 | call mutex_unlock |
954 | call mutex_unlock |
| Line 955... | Line 955... | ||
| 955 | 955 | ||
| 956 | ; retransmit missing segment |
956 | ; retransmit missing segment |
| 957 | mov eax, [esp] |
957 | mov eax, [esp] |
| Line 958... | Line 958... | ||
| 958 | call TCP_output |
958 | call tcp_output |
| 959 | 959 | ||
| 960 | ; Lock the socket again |
960 | ; Lock the socket again |
| 961 | mov ecx, [esp] |
961 | mov ecx, [esp] |
| Line 1003... | Line 1003... | ||
| 1003 | test [temp_bits], TCP_BIT_TIMESTAMP |
1003 | test [temp_bits], TCP_BIT_TIMESTAMP |
| 1004 | jz .timestamp_not_present |
1004 | jz .timestamp_not_present |
| 1005 | mov eax, [timestamp] |
1005 | mov eax, [timestamp] |
| 1006 | sub eax, [ebx + TCP_SOCKET.ts_ecr] |
1006 | sub eax, [ebx + TCP_SOCKET.ts_ecr] |
| 1007 | inc eax |
1007 | inc eax |
| 1008 | call TCP_xmit_timer |
1008 | call tcp_xmit_timer |
| 1009 | jmp .rtt_done_ |
1009 | jmp .rtt_done_ |
| Line 1010... | Line 1010... | ||
| 1010 | 1010 | ||
| 1011 | ; If no timestamp but transmit timer is running and timed sequence number was acked, |
1011 | ; If no timestamp but transmit timer is running and timed sequence number was acked, |
| 1012 | ; update smoothed RTT. Since we now have an RTT measurement, cancel the timer backoff |
1012 | ; update smoothed RTT. Since we now have an RTT measurement, cancel the timer backoff |
| Line 1018... | Line 1018... | ||
| 1018 | cmp eax, [ebx + TCP_SOCKET.t_rtseq] |
1018 | cmp eax, [ebx + TCP_SOCKET.t_rtseq] |
| 1019 | jbe .rtt_done_ |
1019 | jbe .rtt_done_ |
| 1020 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
1020 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
| 1021 | test eax, eax |
1021 | test eax, eax |
| 1022 | jz .rtt_done_ |
1022 | jz .rtt_done_ |
| 1023 | call TCP_xmit_timer |
1023 | call tcp_xmit_timer |
| Line 1024... | Line 1024... | ||
| 1024 | 1024 | ||
| Line 1025... | Line 1025... | ||
| 1025 | .rtt_done_: |
1025 | .rtt_done_: |
| 1026 | 1026 | ||
| Line 1083... | Line 1083... | ||
| 1083 | 1083 | ||
| 1084 | push ecx edx ebx |
1084 | push ecx edx ebx |
| 1085 | mov ecx, [ebx + STREAM_SOCKET.snd.size] |
1085 | mov ecx, [ebx + STREAM_SOCKET.snd.size] |
| 1086 | lea eax, [ebx + STREAM_SOCKET.snd] |
1086 | lea eax, [ebx + STREAM_SOCKET.snd] |
| 1087 | sub [ebx + TCP_SOCKET.SND_WND], ecx |
1087 | sub [ebx + TCP_SOCKET.SND_WND], ecx |
| 1088 | call SOCKET_ring_free |
1088 | call socket_ring_free |
| Line 1089... | Line 1089... | ||
| 1089 | pop ebx edx ecx |
1089 | pop ebx edx ecx |
| 1090 | 1090 | ||
| 1091 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: our FIN is acked\n" |
1091 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: our FIN is acked\n" |
| Line 1095... | Line 1095... | ||
| 1095 | .finiacked: |
1095 | .finiacked: |
| Line 1096... | Line 1096... | ||
| 1096 | 1096 | ||
| 1097 | push ecx edx ebx |
1097 | push ecx edx ebx |
| 1098 | mov ecx, edi |
1098 | mov ecx, edi |
| 1099 | lea eax, [ebx + STREAM_SOCKET.snd] |
1099 | lea eax, [ebx + STREAM_SOCKET.snd] |
| 1100 | call SOCKET_ring_free |
1100 | call socket_ring_free |
| 1101 | pop ebx |
1101 | pop ebx |
| 1102 | sub [ebx + TCP_SOCKET.SND_WND], ecx |
1102 | sub [ebx + TCP_SOCKET.SND_WND], ecx |
| Line 1103... | Line 1103... | ||
| 1103 | pop edx ecx |
1103 | pop edx ecx |
| Line 1107... | Line 1107... | ||
| 1107 | ;---------------------------------------- |
1107 | ;---------------------------------------- |
| 1108 | ; Wake up process waiting on send buffer |
1108 | ; Wake up process waiting on send buffer |
| Line 1109... | Line 1109... | ||
| 1109 | 1109 | ||
| 1110 | .wakeup: |
1110 | .wakeup: |
| 1111 | mov eax, ebx |
1111 | mov eax, ebx |
| Line 1112... | Line 1112... | ||
| 1112 | call SOCKET_notify |
1112 | call socket_notify |
| 1113 | 1113 | ||
| 1114 | ; Update TCPS |
1114 | ; Update TCPS |
| 1115 | mov eax, [edx + TCP_header.AckNumber] |
1115 | mov eax, [edx + TCP_header.AckNumber] |
| Line 1145... | Line 1145... | ||
| 1145 | jz .ack_processed |
1145 | jz .ack_processed |
| Line 1146... | Line 1146... | ||
| 1146 | 1146 | ||
| 1147 | test [ebx + SOCKET.state], SS_CANTRCVMORE |
1147 | test [ebx + SOCKET.state], SS_CANTRCVMORE |
| 1148 | jnz @f |
1148 | jnz @f |
| 1149 | mov eax, ebx |
1149 | mov eax, ebx |
| 1150 | call SOCKET_is_disconnected |
1150 | call socket_is_disconnected |
| 1151 | mov [ebx + TCP_SOCKET.timer_timed_wait], TCP_time_max_idle |
1151 | mov [ebx + TCP_SOCKET.timer_timed_wait], TCP_time_max_idle |
| 1152 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_wait |
1152 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_wait |
| 1153 | @@: |
1153 | @@: |
| 1154 | mov [ebx + TCP_SOCKET.t_state], TCPS_FIN_WAIT_2 |
1154 | mov [ebx + TCP_SOCKET.t_state], TCPS_FIN_WAIT_2 |
| Line 1158... | Line 1158... | ||
| 1158 | test [temp_bits], TCP_BIT_FIN_IS_ACKED |
1158 | test [temp_bits], TCP_BIT_FIN_IS_ACKED |
| 1159 | jz .ack_processed |
1159 | jz .ack_processed |
| Line 1160... | Line 1160... | ||
| 1160 | 1160 | ||
| 1161 | mov [ebx + TCP_SOCKET.t_state], TCPS_TIMED_WAIT |
1161 | mov [ebx + TCP_SOCKET.t_state], TCPS_TIMED_WAIT |
| 1162 | mov eax, ebx |
1162 | mov eax, ebx |
| 1163 | call TCP_cancel_timers |
1163 | call tcp_cancel_timers |
| 1164 | mov [ebx + TCP_SOCKET.timer_timed_wait], 2 * TCP_time_MSL |
1164 | mov [ebx + TCP_SOCKET.timer_timed_wait], 2 * TCP_time_MSL |
| 1165 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_wait |
1165 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_wait |
| 1166 | mov eax, ebx |
1166 | mov eax, ebx |
| 1167 | call SOCKET_is_disconnected |
1167 | call socket_is_disconnected |
| Line 1168... | Line 1168... | ||
| 1168 | jmp .ack_processed |
1168 | jmp .ack_processed |
| 1169 | 1169 | ||
| 1170 | .ack_la: |
1170 | .ack_la: |
| Line 1175... | Line 1175... | ||
| 1175 | lea ecx, [ebx + SOCKET.mutex] |
1175 | lea ecx, [ebx + SOCKET.mutex] |
| 1176 | call mutex_unlock |
1176 | call mutex_unlock |
| 1177 | pop ebx |
1177 | pop ebx |
| Line 1178... | Line 1178... | ||
| 1178 | 1178 | ||
| 1179 | mov eax, ebx |
1179 | mov eax, ebx |
| 1180 | call TCP_close |
1180 | call tcp_close |
| Line 1181... | Line 1181... | ||
| 1181 | jmp .drop_no_socket |
1181 | jmp .drop_no_socket |
| 1182 | 1182 | ||
| 1183 | .ack_tw: |
1183 | .ack_tw: |
| Line 1222... | Line 1222... | ||
| 1222 | mov eax, [TCP_sequence_num] |
1222 | mov eax, [TCP_sequence_num] |
| 1223 | add [TCP_sequence_num], 64000 / 2 |
1223 | add [TCP_sequence_num], 64000 / 2 |
| 1224 | mov [ebx + TCP_SOCKET.ISS], eax |
1224 | mov [ebx + TCP_SOCKET.ISS], eax |
| 1225 | mov [ebx + TCP_SOCKET.SND_NXT], eax |
1225 | mov [ebx + TCP_SOCKET.SND_NXT], eax |
| Line 1226... | Line 1226... | ||
| 1226 | 1226 | ||
| 1227 | TCP_sendseqinit ebx |
1227 | tcp_sendseqinit ebx |
| Line 1228... | Line 1228... | ||
| 1228 | TCP_rcvseqinit ebx |
1228 | tcp_rcvseqinit ebx |
| 1229 | 1229 | ||
| 1230 | mov [ebx + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED |
1230 | mov [ebx + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED |
| 1231 | or [ebx + TCP_SOCKET.t_flags], TF_ACKNOW |
1231 | or [ebx + TCP_SOCKET.t_flags], TF_ACKNOW |
| Line 1232... | Line 1232... | ||
| 1232 | mov [ebx + TCP_SOCKET.timer_keepalive], TCP_time_keep_interval ;;;; macro |
1232 | mov [ebx + TCP_SOCKET.timer_keepalive], TCP_time_keep_interval ;;;; macro |
| 1233 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_keepalive |
1233 | or [ebx + TCP_SOCKET.timer_flags], timer_flag_keepalive |
| 1234 | 1234 | ||
| 1235 | lea eax, [ebx + STREAM_SOCKET.snd] |
1235 | lea eax, [ebx + STREAM_SOCKET.snd] |
| Line 1236... | Line 1236... | ||
| 1236 | call SOCKET_ring_create |
1236 | call socket_ring_create |
| 1237 | test eax, eax |
1237 | test eax, eax |
| 1238 | jz .drop |
1238 | jz .drop |
| 1239 | 1239 | ||
| Line 1240... | Line 1240... | ||
| 1240 | lea eax, [ebx + STREAM_SOCKET.rcv] |
1240 | lea eax, [ebx + STREAM_SOCKET.rcv] |
| Line 1241... | Line 1241... | ||
| 1241 | call SOCKET_ring_create |
1241 | call socket_ring_create |
| 1242 | test eax, eax |
1242 | test eax, eax |
| 1243 | jz .drop |
1243 | jz .drop |
| 1244 | 1244 | ||
| Line 1245... | Line 1245... | ||
| 1245 | and [temp_bits], not TCP_BIT_DROPSOCKET |
1245 | and [temp_bits], not TCP_BIT_DROPSOCKET |
| Line 1246... | Line 1246... | ||
| 1246 | 1246 | ||
| Line 1276... | Line 1276... | ||
| 1276 | test [edx + TCP_header.Flags], TH_ACK |
1276 | test [edx + TCP_header.Flags], TH_ACK |
| 1277 | jz .drop |
1277 | jz .drop |
| Line 1278... | Line 1278... | ||
| 1278 | 1278 | ||
| 1279 | mov eax, ebx |
1279 | mov eax, ebx |
| 1280 | mov ebx, ECONNREFUSED |
1280 | mov ebx, ECONNREFUSED |
| Line 1281... | Line 1281... | ||
| 1281 | call TCP_drop |
1281 | call tcp_drop |
| 1282 | 1282 | ||
| Line 1283... | Line 1283... | ||
| 1283 | jmp .drop |
1283 | jmp .drop |
| Line 1304... | Line 1304... | ||
| 1304 | and [ebx + TCP_SOCKET.timer_flags], not timer_flag_retransmission ; disable retransmission timer |
1304 | and [ebx + TCP_SOCKET.timer_flags], not timer_flag_retransmission ; disable retransmission timer |
| Line 1305... | Line 1305... | ||
| 1305 | 1305 | ||
| 1306 | push [edx + TCP_header.SequenceNumber] |
1306 | push [edx + TCP_header.SequenceNumber] |
| Line 1307... | Line 1307... | ||
| 1307 | pop [ebx + TCP_SOCKET.IRS] |
1307 | pop [ebx + TCP_SOCKET.IRS] |
| Line 1308... | Line 1308... | ||
| 1308 | 1308 | ||
| Line 1309... | Line 1309... | ||
| 1309 | TCP_rcvseqinit ebx |
1309 | tcp_rcvseqinit ebx |
| 1310 | 1310 | ||
| Line 1322... | Line 1322... | ||
| 1322 | ;;; TODO: update stats |
1322 | ;;; TODO: update stats |
| Line 1323... | Line 1323... | ||
| 1323 | 1323 | ||
| 1324 | ; set socket state to connected |
1324 | ; set socket state to connected |
| 1325 | push eax |
1325 | push eax |
| 1326 | mov eax, ebx |
1326 | mov eax, ebx |
| 1327 | call SOCKET_is_connected |
1327 | call socket_is_connected |
| 1328 | pop eax |
1328 | pop eax |
| Line 1329... | Line 1329... | ||
| 1329 | mov [ebx + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
1329 | mov [ebx + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
| 1330 | 1330 | ||
| Line 1341... | Line 1341... | ||
| 1341 | ;;; TODO: reassemble packets queue |
1341 | ;;; TODO: reassemble packets queue |
| Line 1342... | Line 1342... | ||
| 1342 | 1342 | ||
| 1343 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
1343 | mov eax, [ebx + TCP_SOCKET.t_rtt] |
| 1344 | test eax, eax |
1344 | test eax, eax |
| 1345 | je .trim |
1345 | je .trim |
| 1346 | call TCP_xmit_timer |
1346 | call tcp_xmit_timer |
| Line 1347... | Line 1347... | ||
| 1347 | jmp .trim |
1347 | jmp .trim |
| Line 1348... | Line 1348... | ||
| 1348 | 1348 | ||
| Line 1483... | Line 1483... | ||
| 1483 | 1483 | ||
| 1484 | pusha |
1484 | pusha |
| 1485 | mov esi, [dataoffset] |
1485 | mov esi, [dataoffset] |
| 1486 | add esi, edx |
1486 | add esi, edx |
| 1487 | lea eax, [ebx + STREAM_SOCKET.rcv] |
1487 | lea eax, [ebx + STREAM_SOCKET.rcv] |
| 1488 | call SOCKET_ring_write ; Add the data to the socket buffer |
1488 | call socket_ring_write ; Add the data to the socket buffer |
| 1489 | add [ebx + TCP_SOCKET.RCV_NXT], ecx ; Update sequence number with number of bytes we have copied |
1489 | add [ebx + TCP_SOCKET.RCV_NXT], ecx ; Update sequence number with number of bytes we have copied |
| Line 1490... | Line 1490... | ||
| 1490 | popa |
1490 | popa |
| 1491 | 1491 | ||
| 1492 | ; Wake up the sleeping process |
1492 | ; Wake up the sleeping process |
| Line 1493... | Line 1493... | ||
| 1493 | mov eax, ebx |
1493 | mov eax, ebx |
| Line 1494... | Line 1494... | ||
| 1494 | call SOCKET_notify |
1494 | call socket_notify |
| 1495 | 1495 | ||
| 1496 | jmp .data_done |
1496 | jmp .data_done |
| Line 1497... | Line 1497... | ||
| 1497 | 1497 | ||
| Line 1498... | Line 1498... | ||
| 1498 | .out_of_order: |
1498 | .out_of_order: |
| Line 1499... | Line 1499... | ||
| 1499 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP data is out of order!\nSequencenumber is %u, we expected %u.\n", \ |
1499 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP data is out of order!\nSequencenumber is %u, we expected %u.\n", \ |
| 1500 | [edx + TCP_header.SequenceNumber], [ebx + TCP_SOCKET.RCV_NXT] |
1500 | [edx + TCP_header.SequenceNumber], [ebx + TCP_SOCKET.RCV_NXT] |
| 1501 | 1501 | ||
| 1502 | ; Uh-oh, some data is out of order, lets call TCP reassemble for help |
1502 | ; Uh-oh, some data is out of order, lets call TCP reassemble for help |
| Line 1520... | Line 1520... | ||
| 1520 | jae .not_first_fin |
1520 | jae .not_first_fin |
| Line 1521... | Line 1521... | ||
| 1521 | 1521 | ||
| Line 1522... | Line 1522... | ||
| 1522 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: First FIN for this connection\n" |
1522 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: First FIN for this connection\n" |
| 1523 | 1523 | ||
| Line 1524... | Line 1524... | ||
| 1524 | mov eax, ebx |
1524 | mov eax, ebx |
| 1525 | call SOCKET_cant_recv_more |
1525 | call socket_cant_recv_more |
| Line 1526... | Line 1526... | ||
| 1526 | 1526 | ||
| Line 1554... | Line 1554... | ||
| 1554 | jmp .final_processing |
1554 | jmp .final_processing |
| Line 1555... | Line 1555... | ||
| 1555 | 1555 | ||
| 1556 | .fin_wait2: |
1556 | .fin_wait2: |
| 1557 | mov [ebx + TCP_SOCKET.t_state], TCPS_TIMED_WAIT |
1557 | mov [ebx + TCP_SOCKET.t_state], TCPS_TIMED_WAIT |
| 1558 | mov eax, ebx |
1558 | mov eax, ebx |
| 1559 | call TCP_cancel_timers |
1559 | call tcp_cancel_timers |
| Line 1560... | Line 1560... | ||
| 1560 | call SOCKET_is_disconnected |
1560 | call socket_is_disconnected |
| 1561 | 1561 | ||
| 1562 | .fin_timed: |
1562 | .fin_timed: |
| Line 1581... | Line 1581... | ||
| 1581 | jz .done |
1581 | jz .done |
| 1582 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: ACK now!\n" |
1582 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: ACK now!\n" |
| Line 1583... | Line 1583... | ||
| 1583 | 1583 | ||
| 1584 | .need_output: |
1584 | .need_output: |
| 1585 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: need output\n" |
1585 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: need output\n" |
| Line 1586... | Line 1586... | ||
| 1586 | call TCP_output |
1586 | call tcp_output |
| 1587 | 1587 | ||
| Line 1588... | Line 1588... | ||
| 1588 | .done: |
1588 | .done: |
| 1589 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: dumping\n" |
1589 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: dumping\n" |
| Line 1590... | Line 1590... | ||
| 1590 | 1590 | ||
| 1591 | call NET_BUFF_free |
1591 | call net_buff_free |
| Line 1619... | Line 1619... | ||
| 1619 | pop edx ebx |
1619 | pop edx ebx |
| Line 1620... | Line 1620... | ||
| 1620 | 1620 | ||
| 1621 | test [edx + TCP_header.Flags], TH_RST |
1621 | test [edx + TCP_header.Flags], TH_RST |
| Line 1622... | Line 1622... | ||
| 1622 | jnz .done |
1622 | jnz .done |
| Line 1623... | Line 1623... | ||
| 1623 | 1623 | ||
| 1624 | ;;; if its a multicast/broadcast, also drop |
1624 | ; TODO: if its a multicast/broadcast, also drop |
| Line 1625... | Line 1625... | ||
| 1625 | 1625 | ||
| Line 1634... | Line 1634... | ||
| 1634 | ; Respond |
1634 | ; Respond |
| Line 1635... | Line 1635... | ||
| 1635 | 1635 | ||
| 1636 | .respond_ack: |
1636 | .respond_ack: |
| 1637 | push ebx |
1637 | push ebx |
| 1638 | mov cl, TH_RST |
1638 | mov cl, TH_RST |
| 1639 | call TCP_respond |
1639 | call tcp_respond |
| 1640 | pop ebx |
1640 | pop ebx |
| Line 1641... | Line 1641... | ||
| 1641 | jmp .destroy_new_socket |
1641 | jmp .destroy_new_socket |
| 1642 | 1642 | ||
| 1643 | .respond_syn: |
1643 | .respond_syn: |
| 1644 | push ebx |
1644 | push ebx |
| 1645 | mov cl, TH_RST + TH_ACK |
1645 | mov cl, TH_RST + TH_ACK |
| 1646 | call TCP_respond |
1646 | call tcp_respond |
| Line 1647... | Line 1647... | ||
| 1647 | pop ebx |
1647 | pop ebx |
| 1648 | jmp .destroy_new_socket |
1648 | jmp .destroy_new_socket |
| Line 1658... | Line 1658... | ||
| 1658 | 1658 | ||
| 1659 | .respond_seg_reset: |
1659 | .respond_seg_reset: |
| 1660 | test [edx + TCP_header.Flags], TH_RST |
1660 | test [edx + TCP_header.Flags], TH_RST |
| Line 1661... | Line 1661... | ||
| 1661 | jnz .drop_no_socket |
1661 | jnz .drop_no_socket |
| Line 1662... | Line 1662... | ||
| 1662 | 1662 | ||
| 1663 | ;;; TODO: if its a multicast/broadcast, also drop |
1663 | ; TODO: if its a multicast/broadcast, also drop |
| Line 1664... | Line 1664... | ||
| 1664 | 1664 | ||
| Line 1671... | Line 1671... | ||
| 1671 | jmp .drop_no_socket |
1671 | jmp .drop_no_socket |
| Line 1672... | Line 1672... | ||
| 1672 | 1672 | ||
| 1673 | .respond_seg_ack: |
1673 | .respond_seg_ack: |
| 1674 | mov cl, TH_RST |
1674 | mov cl, TH_RST |
| 1675 | xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
1675 | xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
| 1676 | call TCP_respond_segment |
1676 | call tcp_respond_segment |
| Line 1677... | Line 1677... | ||
| 1677 | jmp .drop_no_socket |
1677 | jmp .drop_no_socket |
| 1678 | 1678 | ||
| 1679 | .respond_seg_syn: |
1679 | .respond_seg_syn: |
| 1680 | mov cl, TH_RST + TH_ACK |
1680 | mov cl, TH_RST + TH_ACK |
| 1681 | xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
1681 | xor ebx, ebx ; FIXME: find a way to get the receiving device ptr |
| Line 1682... | Line 1682... | ||
| 1682 | call TCP_respond_segment |
1682 | call tcp_respond_segment |
| 1683 | jmp .drop_no_socket |
1683 | jmp .drop_no_socket |
| Line 1699... | Line 1699... | ||
| 1699 | .destroy_new_socket: |
1699 | .destroy_new_socket: |
| 1700 | test [temp_bits], TCP_BIT_DROPSOCKET |
1700 | test [temp_bits], TCP_BIT_DROPSOCKET |
| 1701 | jz .drop_no_socket |
1701 | jz .drop_no_socket |
| Line 1702... | Line 1702... | ||
| 1702 | 1702 | ||
| 1703 | mov eax, ebx |
1703 | mov eax, ebx |
| Line 1704... | Line 1704... | ||
| 1704 | call SOCKET_free |
1704 | call socket_free |
| 1705 | 1705 | ||
| Line 1706... | Line 1706... | ||
| 1706 | ;------------------ |
1706 | ;------------------ |
| 1707 | ; Drop the segment |
1707 | ; Drop the segment |
| Line 1708... | Line 1708... | ||
| 1708 | 1708 | ||
| 1709 | .drop_no_socket: |
1709 | .drop_no_socket: |
| Line 1710... | Line 1710... | ||
| 1710 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Drop (no socket)\n" |
1710 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_input: Drop (no socket)\n" |