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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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4366 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
3545 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; Part of the TCP/IP network stack for KolibriOS ;; |
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7 | ;; ;; |
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8 | ;; Written by hidnplayr@kolibrios.org ;; |
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9 | ;; ;; |
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10 | ;; Based on the code of 4.4BSD ;; |
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11 | ;; ;; |
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12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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13 | ;; Version 2, June 1991 ;; |
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14 | ;; ;; |
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15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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16 | |||
17 | |||
18 | ;------------------------- |
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19 | ; |
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20 | ; TCP_usrclose |
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21 | ; |
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22 | ; Move connection to next state, based on process close. |
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23 | ; |
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24 | ; IN: eax = socket ptr |
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25 | ; |
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26 | ;------------------------- |
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27 | align 4 |
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28 | TCP_usrclosed: |
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29 | |||
3556 | hidnplayr | 30 | DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_usrclosed: %x\n", eax |
3545 | hidnplayr | 31 | |
32 | push ebx |
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33 | mov ebx, [eax + TCP_SOCKET.t_state] |
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34 | mov ebx, dword [.switch + ebx*4] |
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35 | jmp ebx |
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36 | |||
37 | .switch: |
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38 | |||
39 | dd .close ; TCPS_CLOSED |
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40 | dd .close ; TCPS_LISTEN |
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41 | dd .close ; TCPS_SYN_SENT |
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42 | dd .wait1 ; TCPS_SYN_RECEIVED |
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43 | dd .wait1 ; TCPS_ESTABLISHED |
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44 | dd .last_ack ; TCPS_CLOSE_WAIT |
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45 | dd .ret ; TCPS_FIN_WAIT_1 |
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46 | dd .ret ; TCPS_CLOSING |
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47 | dd .ret ; TCPS_LAST_ACK |
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48 | dd .disc ; TCPS_FIN_WAIT_2 |
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49 | dd .disc ; TCPS_TIMED_WAIT |
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50 | |||
51 | |||
52 | .close: |
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53 | mov [eax + TCP_SOCKET.t_state], TCPS_CLOSED |
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54 | call TCP_close |
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55 | pop ebx |
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56 | ret |
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57 | |||
58 | .wait1: |
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59 | mov [eax + TCP_SOCKET.t_state], TCPS_FIN_WAIT_1 |
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60 | pop ebx |
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61 | ret |
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62 | |||
63 | .last_ack: |
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64 | mov [eax + TCP_SOCKET.t_state], TCPS_LAST_ACK |
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65 | pop ebx |
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66 | ret |
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67 | |||
68 | .disc: |
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69 | call SOCKET_is_disconnected |
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70 | .ret: |
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71 | pop ebx |
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72 | ret |
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73 | |||
74 | |||
4030 | hidnplayr | 75 | ;------------------------- |
76 | ; |
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77 | ; TCP_connect |
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78 | ; |
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79 | ; IN: eax = socket ptr |
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80 | ; OUT: eax = 0 ok / -1 error |
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81 | ; ebx = error code |
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82 | ; |
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83 | ;------------------------- |
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84 | align 4 |
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85 | TCP_connect: |
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3545 | hidnplayr | 86 | |
4030 | hidnplayr | 87 | test [eax + SOCKET.state], SS_ISCONNECTED |
88 | jnz .eisconn |
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3545 | hidnplayr | 89 | |
4035 | hidnplayr | 90 | push eax edx |
4030 | hidnplayr | 91 | lea ecx, [eax + SOCKET.mutex] |
92 | call mutex_lock |
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4035 | hidnplayr | 93 | pop edx eax |
4030 | hidnplayr | 94 | |
95 | ; Fill in local IP |
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96 | cmp [eax + IP_SOCKET.LocalIP], 0 |
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97 | jne @f |
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98 | push [IP_LIST + 4] ; FIXME: use correct local IP |
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99 | pop [eax + IP_SOCKET.LocalIP] |
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100 | |||
101 | ; Fill in remote port and IP |
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102 | pushw [edx + 2] |
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103 | pop [eax + TCP_SOCKET.RemotePort] |
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104 | |||
105 | pushd [edx + 4] |
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106 | pop [eax + IP_SOCKET.RemoteIP] |
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107 | |||
108 | ; Find a local port, if user didnt define one |
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109 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
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110 | jne @f |
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111 | call SOCKET_find_port |
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112 | @@: |
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113 | |||
114 | ; Start the TCP sequence |
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115 | mov [eax + TCP_SOCKET.timer_persist], 0 |
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116 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
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117 | |||
118 | push [TCP_sequence_num] |
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119 | add [TCP_sequence_num], 6400 |
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120 | pop [eax + TCP_SOCKET.ISS] |
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121 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
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122 | |||
123 | TCP_sendseqinit eax |
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124 | |||
125 | mov ebx, eax |
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126 | lea eax, [ebx + STREAM_SOCKET.snd] |
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127 | call SOCKET_ring_create |
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128 | test eax, eax |
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129 | jz .nomem |
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130 | |||
131 | lea eax, [ebx + STREAM_SOCKET.rcv] |
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132 | call SOCKET_ring_create |
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133 | test eax, eax |
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134 | jz .nomem |
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135 | |||
136 | push ebx |
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137 | lea ecx, [ebx + SOCKET.mutex] |
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138 | call mutex_unlock |
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139 | pop eax |
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140 | |||
141 | call SOCKET_is_connecting |
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142 | |||
143 | ; Now send the SYN packet to remote end |
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144 | push eax |
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145 | call TCP_output |
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146 | pop eax |
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147 | |||
148 | .block: |
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149 | test [eax + SOCKET.options], SO_NONBLOCK |
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150 | jz .waitforit |
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151 | |||
152 | xor eax, eax |
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153 | dec eax |
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154 | mov ebx, EINPROGRESS |
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155 | ret |
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156 | |||
157 | .nomem: |
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158 | xor eax, eax |
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159 | dec eax |
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160 | mov ebx, ENOMEM |
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161 | ret |
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162 | |||
163 | .eisconn: |
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164 | xor eax, eax |
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165 | dec eax |
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166 | mov ebx, EISCONN |
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167 | ret |
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168 | |||
169 | .waitforit: |
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170 | push eax |
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171 | stdcall timer_hs, TCP_time_connect, 0, .timeout, eax |
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172 | pop ebx |
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173 | mov [ebx + TCP_SOCKET.timer_connect], eax |
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174 | mov eax, ebx |
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175 | |||
176 | .loop: |
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177 | cmp [eax + SOCKET.errorcode], 0 |
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178 | jne .fail |
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179 | cmp [eax + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
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180 | je .established |
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181 | |||
182 | call SOCKET_block |
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183 | jmp .loop |
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184 | |||
185 | .timeout: |
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186 | mov eax, [esp+4] |
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187 | mov [eax + SOCKET.errorcode], ETIMEDOUT |
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188 | and [eax + SOCKET.state], not SS_ISCONNECTING |
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189 | call SOCKET_notify.unblock |
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190 | ret 4 |
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191 | |||
192 | .fail: |
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193 | mov ebx, [eax + SOCKET.errorcode] |
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194 | mov [eax + SOCKET.errorcode], 0 ; Clear the error, we only need to send it to the caller once |
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195 | xor eax, eax |
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196 | dec eax |
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197 | ret |
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198 | |||
199 | .established: |
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200 | stdcall cancel_timer_hs, [eax + TCP_SOCKET.timer_connect] |
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201 | |||
202 | xor eax, eax |
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3545 | hidnplayr | 203 | ret |