Rev 3545 | Rev 3600 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
||
4 | ;; Distributed under terms of the GNU General Public License ;; |
||
5 | ;; ;; |
||
6 | ;; Part of the TCP/IP network stack for KolibriOS ;; |
||
7 | ;; ;; |
||
8 | ;; Written by hidnplayr@kolibrios.org ;; |
||
9 | ;; ;; |
||
10 | ;; Based on the code of 4.4BSD ;; |
||
11 | ;; ;; |
||
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
||
13 | ;; Version 2, June 1991 ;; |
||
14 | ;; ;; |
||
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
16 | |||
17 | $Revision: 3143 $ |
||
18 | |||
19 | ;---------------------- |
||
20 | ; 160 ms timer |
||
21 | ;---------------------- |
||
22 | macro TCP_timer_160ms { |
||
23 | |||
24 | local .loop |
||
25 | local .exit |
||
26 | |||
27 | mov ebx, net_sockets |
||
28 | .loop: |
||
29 | mov ebx, [ebx + SOCKET.NextPtr] |
||
30 | or ebx, ebx |
||
31 | jz .exit |
||
32 | |||
33 | cmp [ebx + SOCKET.Domain], AF_INET4 |
||
34 | jne .loop |
||
35 | |||
36 | cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP |
||
37 | jne .loop |
||
38 | |||
39 | test [ebx + TCP_SOCKET.t_flags], TF_DELACK |
||
40 | jz .loop |
||
41 | and [ebx + TCP_SOCKET.t_flags], not (TF_DELACK) |
||
42 | |||
43 | push ebx |
||
44 | mov cl, TH_ACK |
||
45 | call TCP_respond |
||
46 | ; and [ebx + TCP_SOCKET.t_flags], TF_ACKNOW ;; |
||
47 | ; mov eax, ebx ;; |
||
48 | ; call TCP_output ;; |
||
49 | pop ebx |
||
50 | |||
51 | jmp .loop |
||
52 | |||
53 | .exit: |
||
54 | |||
55 | } |
||
56 | |||
57 | |||
58 | ;---------------------- |
||
59 | ; 640 ms timer |
||
60 | ;---------------------- |
||
61 | macro TCP_timer_640ms { |
||
62 | |||
63 | local .loop |
||
64 | local .exit |
||
65 | |||
66 | ; Update TCP sequence number |
||
67 | |||
68 | add [TCP_sequence_num], 64000 |
||
69 | |||
70 | ; scan through all the active TCP sockets, decrementing ALL timers |
||
71 | ; timers do not have the chance to wrap because the keepalive timer will kill the socket when it expires |
||
72 | |||
73 | mov eax, net_sockets |
||
74 | .loop: |
||
75 | mov eax, [eax + SOCKET.NextPtr] |
||
76 | .check_only: |
||
77 | or eax, eax |
||
78 | jz .exit |
||
79 | |||
80 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
81 | jne .loop |
||
82 | |||
83 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
84 | jne .loop |
||
85 | |||
86 | inc [eax + TCP_SOCKET.t_idle] |
||
87 | dec [eax + TCP_SOCKET.timer_retransmission] |
||
88 | jnz .check_more2 |
||
89 | |||
3556 | hidnplayr | 90 | DEBUGF DEBUG_NETWORK_VERBOSE, "socket %x: Retransmission timer expired\n", eax |
3545 | hidnplayr | 91 | |
92 | push eax |
||
93 | call TCP_output |
||
94 | pop eax |
||
95 | |||
96 | .check_more2: |
||
97 | dec [eax + TCP_SOCKET.timer_keepalive] |
||
98 | jnz .check_more3 |
||
99 | |||
3556 | hidnplayr | 100 | DEBUGF DEBUG_NETWORK_VERBOSE, "socket %x: Keepalive expired\n", eax |
3545 | hidnplayr | 101 | |
102 | cmp [eax + TCP_SOCKET.state], TCPS_ESTABLISHED |
||
103 | ja .dont_kill |
||
104 | |||
105 | push eax |
||
106 | call TCP_disconnect |
||
107 | pop eax |
||
108 | jmp .loop |
||
109 | |||
110 | .dont_kill: |
||
111 | test [eax + SOCKET.options], SO_KEEPALIVE |
||
112 | jz .reset_keepalive |
||
113 | |||
114 | push eax |
||
115 | mov ebx, eax |
||
116 | xor cl, cl |
||
117 | call TCP_respond ; send keepalive |
||
118 | pop eax |
||
119 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_interval |
||
120 | jmp .check_more3 |
||
121 | |||
122 | .reset_keepalive: |
||
123 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_idle |
||
124 | |||
125 | .check_more3: |
||
126 | dec [eax + TCP_SOCKET.timer_timed_wait] |
||
127 | jnz .check_more5 |
||
128 | |||
3556 | hidnplayr | 129 | DEBUGF DEBUG_NETWORK_VERBOSE, "socket %x: 2MSL timer expired\n", eax |
3545 | hidnplayr | 130 | |
131 | .check_more5: |
||
132 | dec [eax + TCP_SOCKET.timer_persist] |
||
133 | jnz .loop |
||
134 | |||
3556 | hidnplayr | 135 | DEBUGF DEBUG_NETWORK_VERBOSE, "socket %x: persist timer expired\n", eax |
3545 | hidnplayr | 136 | |
137 | call TCP_set_persist |
||
138 | mov [eax + TCP_SOCKET.t_force], 1 |
||
139 | push eax |
||
140 | call TCP_output |
||
141 | pop eax |
||
142 | mov [eax + TCP_SOCKET.t_force], 0 |
||
143 | |||
144 | jmp .loop |
||
145 | .exit: |
||
146 | |||
147 | } |
||
148 | |||
149 | |||
150 | |||
151 | ; eax = socket |
||
152 | |||
153 | TCP_cancel_timers: |
||
154 | |||
155 | push eax edi |
||
156 | |||
157 | lea edi, [eax + TCP_SOCKET.timer_retransmission] |
||
158 | xor eax, eax |
||
159 | stosd |
||
160 | stosd |
||
161 | stosd |
||
162 | stosd |
||
163 | stosd |
||
164 | |||
165 | pop edi eax |
||
166 | |||
167 | |||
168 | ret |