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4429 | Serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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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 | ;; and Clevermouse. ;; |
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10 | ;; ;; |
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11 | ;; Based on code by mike.dld ;; |
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12 | ;; ;; |
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13 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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14 | ;; Version 2, June 1991 ;; |
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15 | ;; ;; |
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16 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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17 | |||
18 | $Revision: 3514 $ |
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19 | |||
20 | struct SOCKET |
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21 | |||
22 | NextPtr dd ? ; pointer to next socket in list |
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23 | PrevPtr dd ? ; pointer to previous socket in list |
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24 | Number dd ? ; socket number |
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25 | |||
26 | mutex MUTEX |
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27 | |||
28 | PID dd ? ; process ID |
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29 | TID dd ? ; thread ID |
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30 | Domain dd ? ; INET/LOCAL/.. |
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31 | Type dd ? ; RAW/STREAM/DGRAM |
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32 | Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP |
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33 | errorcode dd ? |
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34 | device dd ? ; driver pointer, socket pointer if it's an LOCAL socket |
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35 | |||
36 | options dd ? |
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37 | state dd ? |
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38 | backlog dw ? ; how many incoming connections that can be queued |
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39 | |||
40 | snd_proc dd ? |
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41 | rcv_proc dd ? |
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42 | connect_proc dd ? |
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43 | |||
44 | ends |
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45 | |||
46 | struct IP_SOCKET SOCKET |
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47 | |||
48 | LocalIP rd 4 ; network byte order |
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49 | RemoteIP rd 4 ; network byte order |
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50 | |||
51 | ends |
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52 | |||
53 | struct TCP_SOCKET IP_SOCKET |
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54 | |||
55 | LocalPort dw ? ; network byte order |
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56 | RemotePort dw ? ; network byte order |
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57 | |||
58 | t_state dd ? ; TCB state |
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59 | t_rxtshift db ? |
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60 | rb 3 ; align |
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61 | t_rxtcur dd ? |
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62 | t_dupacks dd ? |
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63 | t_maxseg dd ? |
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64 | t_force dd ? |
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65 | t_flags dd ? |
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66 | |||
67 | ;--------------- |
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68 | ; RFC783 page 21 |
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69 | |||
70 | ; send sequence |
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71 | SND_UNA dd ? ; sequence number of unack'ed sent Packets |
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72 | SND_NXT dd ? ; next send sequence number to use |
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73 | SND_UP dd ? ; urgent pointer |
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74 | SND_WL1 dd ? ; window minus one |
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75 | SND_WL2 dd ? ; |
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76 | ISS dd ? ; initial send sequence number |
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77 | SND_WND dd ? ; send window |
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78 | |||
79 | ; receive sequence |
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80 | RCV_WND dd ? ; receive window |
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81 | RCV_NXT dd ? ; next receive sequence number to use |
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82 | RCV_UP dd ? ; urgent pointer |
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83 | IRS dd ? ; initial receive sequence number |
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84 | |||
85 | ;--------------------- |
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86 | ; Additional variables |
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87 | |||
88 | ; receive variables |
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89 | RCV_ADV dd ? |
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90 | |||
91 | ; retransmit variables |
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92 | SND_MAX dd ? |
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93 | |||
94 | ; congestion control |
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95 | SND_CWND dd ? ; congestion window |
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96 | SND_SSTHRESH dd ? ; slow start threshold |
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97 | |||
98 | ;---------------------- |
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99 | ; Transmit timing stuff |
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100 | t_idle dd ? |
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101 | t_rtt dd ? |
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102 | t_rtseq dd ? |
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103 | t_srtt dd ? |
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104 | t_rttvar dd ? |
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105 | t_rttmin dd ? |
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106 | max_sndwnd dd ? |
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107 | |||
108 | ;----------------- |
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109 | ; Out-of-band data |
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110 | t_oobflags dd ? |
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111 | t_iobc dd ? |
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112 | t_softerror dd ? |
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113 | |||
114 | |||
115 | ;--------- |
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116 | ; RFC 1323 ; the order of next 4 elements may not change |
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117 | |||
118 | SND_SCALE db ? |
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119 | RCV_SCALE db ? |
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120 | requested_s_scale db ? |
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121 | request_r_scale db ? |
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122 | |||
123 | ts_recent dd ? ; a copy of the most-recent valid timestamp from the other end |
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124 | ts_recent_age dd ? |
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125 | last_ack_sent dd ? |
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126 | |||
127 | |||
128 | ;------- |
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129 | ; Timers |
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130 | timer_flags dd ? |
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131 | timer_retransmission dd ? ; rexmt |
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132 | timer_persist dd ? |
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133 | timer_keepalive dd ? ; keepalive/syn timeout |
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134 | timer_timed_wait dd ? ; also used as 2msl timer |
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135 | timer_connect dd ? |
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136 | |||
137 | ; extra |
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138 | |||
139 | ts_ecr dd ? ; timestamp echo reply |
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140 | ts_val dd ? |
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141 | |||
142 | seg_next dd ? ; re-assembly queue |
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143 | |||
144 | ends |
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145 | |||
146 | struct UDP_SOCKET IP_SOCKET |
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147 | |||
148 | LocalPort dw ? ; network byte order |
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149 | RemotePort dw ? ; network byte order |
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150 | |||
151 | ends |
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152 | |||
153 | |||
154 | struct ICMP_SOCKET IP_SOCKET |
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155 | |||
156 | Identifier dw ? |
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157 | |||
158 | ends |
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159 | |||
160 | |||
161 | struct RING_BUFFER |
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162 | |||
163 | mutex MUTEX |
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164 | start_ptr dd ? ; Pointer to start of buffer |
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165 | end_ptr dd ? ; pointer to end of buffer |
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166 | read_ptr dd ? ; Read pointer |
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167 | write_ptr dd ? ; Write pointer |
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168 | size dd ? ; Number of bytes buffered |
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169 | |||
170 | ends |
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171 | |||
172 | struct STREAM_SOCKET TCP_SOCKET |
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173 | |||
174 | rcv RING_BUFFER |
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175 | snd RING_BUFFER |
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176 | |||
177 | ends |
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178 | |||
179 | struct socket_queue_entry |
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180 | |||
181 | data_ptr dd ? |
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182 | buf_ptr dd ? |
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183 | data_size dd ? |
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184 | |||
185 | ends |
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186 | |||
187 | |||
188 | SOCKETBUFFSIZE = 4096 ; in bytes |
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189 | |||
190 | SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket |
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191 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
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192 | SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
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193 | |||
194 | uglobal |
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195 | align 4 |
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196 | |||
197 | net_sockets rd 4 |
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198 | last_socket_num dd ? |
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199 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
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200 | last_TCP_port dw ? ; |
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201 | socket_mutex MUTEX |
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202 | |||
203 | endg |
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204 | |||
205 | |||
206 | ;----------------------------------------------------------------- |
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207 | ; |
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208 | ; SOCKET_init |
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209 | ; |
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210 | ;----------------------------------------------------------------- |
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211 | macro SOCKET_init { |
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212 | |||
213 | xor eax, eax |
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214 | mov edi, net_sockets |
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215 | mov ecx, 5 |
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216 | rep stosd |
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217 | |||
218 | @@: |
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219 | pseudo_random eax |
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220 | cmp ax, EPHEMERAL_PORT_MIN |
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221 | jb @r |
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222 | cmp ax, EPHEMERAL_PORT_MAX |
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223 | ja @r |
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224 | xchg al, ah |
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225 | mov [last_UDP_port], ax |
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226 | |||
227 | @@: |
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228 | pseudo_random eax |
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229 | cmp ax, EPHEMERAL_PORT_MIN |
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230 | jb @r |
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231 | cmp ax, EPHEMERAL_PORT_MAX |
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232 | ja @r |
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233 | xchg al, ah |
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234 | mov [last_TCP_port], ax |
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235 | |||
236 | mov ecx, socket_mutex |
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237 | call mutex_init |
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238 | |||
239 | } |
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240 | |||
241 | ;----------------------------------------------------------------- |
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242 | ; |
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243 | ; Socket API (function 74) |
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244 | ; |
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245 | ;----------------------------------------------------------------- |
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246 | align 4 |
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247 | sys_socket: |
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248 | |||
249 | mov dword[esp+20], 0 ; Set error code to 0 |
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250 | |||
251 | cmp ebx, 255 |
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252 | jz SOCKET_debug |
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253 | |||
254 | cmp ebx, .number |
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255 | ja .error |
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256 | jmp dword [.table + 4*ebx] |
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257 | |||
258 | .table: |
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259 | dd SOCKET_open ; 0 |
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260 | dd SOCKET_close ; 1 |
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261 | dd SOCKET_bind ; 2 |
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262 | dd SOCKET_listen ; 3 |
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263 | dd SOCKET_connect ; 4 |
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264 | dd SOCKET_accept ; 5 |
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265 | dd SOCKET_send ; 6 |
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266 | dd SOCKET_receive ; 7 |
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267 | dd SOCKET_set_opt ; 8 |
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268 | dd SOCKET_get_opt ; 9 |
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269 | dd SOCKET_pair ; 10 |
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270 | .number = ($ - .table) / 4 - 1 |
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271 | |||
272 | .error: |
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273 | mov dword[esp+32], -1 |
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274 | mov dword[esp+20], EINVAL |
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275 | |||
276 | ret |
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277 | |||
278 | ;----------------------------------------------------------------- |
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279 | ; |
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280 | ; SOCKET_open |
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281 | ; |
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282 | ; IN: domain in ecx |
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283 | ; type in edx |
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284 | ; protocol in esi |
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285 | ; OUT: eax is socket num, -1 on error |
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286 | ; |
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287 | ;----------------------------------------------------------------- |
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288 | align 4 |
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289 | SOCKET_open: |
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290 | |||
291 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_open: domain=%u type=%u protocol=%x ", ecx, edx, esi |
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292 | |||
293 | push ecx edx esi |
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294 | call SOCKET_alloc |
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295 | pop esi edx ecx |
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296 | jz .nobuffs |
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297 | |||
298 | mov [esp+32], edi ; return socketnumber |
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299 | DEBUGF DEBUG_NETWORK_VERBOSE, "socknum=%u\n", edi |
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300 | |||
301 | test edx, SO_NONBLOCK |
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302 | jz @f |
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303 | or [eax + SOCKET.options], SO_NONBLOCK |
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304 | and edx, not SO_NONBLOCK |
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305 | @@: |
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306 | |||
307 | mov [eax + SOCKET.Domain], ecx |
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308 | mov [eax + SOCKET.Type], edx |
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309 | mov [eax + SOCKET.Protocol], esi |
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310 | mov [eax + SOCKET.connect_proc], connect_notsupp |
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311 | |||
312 | cmp ecx, AF_INET4 |
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313 | jne .no_inet4 |
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314 | |||
315 | cmp edx, SOCK_DGRAM |
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316 | je .udp |
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317 | |||
318 | cmp edx, SOCK_STREAM |
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319 | je .tcp |
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320 | |||
321 | cmp edx, SOCK_RAW |
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322 | je .raw |
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323 | |||
324 | .no_inet4: |
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325 | cmp ecx, AF_PPP |
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326 | jne .no_ppp |
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327 | |||
328 | cmp esi, PPP_PROTO_ETHERNET |
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329 | je .pppoe |
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330 | |||
331 | .no_ppp: |
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332 | .unsupported: |
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333 | push eax |
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334 | call SOCKET_free |
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335 | pop eax |
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336 | mov dword[esp+20], EOPNOTSUPP |
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337 | mov dword[esp+32], -1 |
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338 | ret |
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339 | |||
340 | .nobuffs: |
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341 | mov dword[esp+20], ENOBUFS |
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342 | mov dword[esp+32], -1 |
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343 | ret |
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344 | |||
345 | .raw: |
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346 | test esi, esi ; IP_PROTO_IP |
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347 | jz .raw_ip |
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348 | |||
349 | cmp esi, IP_PROTO_ICMP |
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350 | je .raw_icmp |
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351 | |||
352 | jmp .unsupported |
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353 | |||
354 | align 4 |
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355 | .udp: |
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356 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
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357 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
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358 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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359 | mov [eax + SOCKET.connect_proc], UDP_connect |
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360 | ret |
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361 | |||
362 | align 4 |
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363 | .tcp: |
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364 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
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365 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
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366 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
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367 | mov [eax + SOCKET.connect_proc], TCP_connect |
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368 | |||
369 | TCP_init_socket eax |
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370 | ret |
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371 | |||
372 | |||
373 | align 4 |
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374 | .raw_ip: |
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375 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
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376 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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377 | mov [eax + SOCKET.connect_proc], IPv4_connect |
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378 | ret |
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379 | |||
380 | |||
381 | align 4 |
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382 | .raw_icmp: |
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383 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
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384 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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385 | mov [eax + SOCKET.connect_proc], IPv4_connect |
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386 | ret |
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387 | |||
388 | align 4 |
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389 | .pppoe: |
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390 | push eax |
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391 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
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392 | pop eax |
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393 | |||
394 | mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe |
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395 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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396 | ret |
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397 | |||
398 | |||
399 | ;----------------------------------------------------------------- |
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400 | ; |
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401 | ; SOCKET_bind |
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402 | ; |
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403 | ; IN: socket number in ecx |
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404 | ; pointer to sockaddr struct in edx |
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405 | ; length of that struct in esi |
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406 | ; OUT: 0 on success |
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407 | ; |
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408 | ;----------------------------------------------------------------- |
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409 | align 4 |
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410 | SOCKET_bind: |
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411 | |||
412 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
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413 | |||
414 | call SOCKET_num_to_ptr |
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415 | jz .invalid |
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416 | |||
417 | cmp esi, 2 |
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418 | jb .invalid |
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419 | |||
420 | cmp [eax + UDP_SOCKET.LocalPort], 0 ; Socket can only be bound once |
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421 | jnz .invalid |
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422 | |||
423 | cmp word [edx], AF_INET4 |
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424 | je .af_inet4 |
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425 | |||
426 | cmp word [edx], AF_LOCAL |
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427 | je .af_local |
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428 | |||
429 | .notsupp: |
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430 | mov dword[esp+20], EOPNOTSUPP |
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431 | mov dword[esp+32], -1 |
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432 | ret |
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433 | |||
434 | .invalid: |
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435 | mov dword[esp+20], EINVAL |
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436 | mov dword[esp+32], -1 |
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437 | ret |
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438 | |||
439 | .af_local: |
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440 | ; TODO: write code here |
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441 | mov dword[esp+32], 0 |
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442 | ret |
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443 | |||
444 | .af_inet4: |
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445 | cmp esi, 6 |
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446 | jb .invalid |
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447 | |||
448 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
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449 | je .udp |
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450 | |||
451 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
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452 | je .tcp |
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453 | |||
454 | jmp .notsupp |
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455 | |||
456 | .tcp: |
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457 | .udp: |
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458 | |||
459 | pushd [edx + 4] ; First, fill in the IP |
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460 | popd [eax + IP_SOCKET.LocalIP] |
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461 | |||
462 | mov bx, [edx + 2] ; Did caller specify a local port? |
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463 | test bx, bx |
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464 | jnz .just_check |
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465 | call SOCKET_find_port ; Nope, find an ephemeral one |
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466 | jmp .done |
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467 | |||
468 | .just_check: |
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469 | call SOCKET_check_port ; Yes, check if it's still available |
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470 | jz .addrinuse ; ZF is set by socket_check_port on error |
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471 | |||
472 | .done: |
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473 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: local ip=%u.%u.%u.%u\n",\ |
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474 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
||
475 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
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476 | |||
477 | mov dword[esp+32], 0 |
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478 | ret |
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479 | |||
480 | .addrinuse: |
||
481 | mov dword[esp+32], -1 |
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482 | mov dword[esp+20], EADDRINUSE |
||
483 | ret |
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484 | |||
485 | |||
486 | |||
487 | |||
488 | ;----------------------------------------------------------------- |
||
489 | ; |
||
490 | ; SOCKET_connect |
||
491 | ; |
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492 | ; IN: socket number in ecx |
||
493 | ; pointer to sockaddr struct in edx |
||
494 | ; length of that struct in esi |
||
495 | ; OUT: 0 on success |
||
496 | ; |
||
497 | ;----------------------------------------------------------------- |
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498 | align 4 |
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499 | SOCKET_connect: |
||
500 | |||
501 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
||
502 | |||
503 | call SOCKET_num_to_ptr |
||
504 | jz .invalid |
||
505 | |||
506 | cmp esi, 8 |
||
507 | jb .invalid |
||
508 | |||
509 | cmp [eax + SOCKET.state], SS_ISCONNECTING |
||
510 | je .already |
||
511 | |||
512 | test [eax + SOCKET.options], SO_ACCEPTCON |
||
513 | jnz .notsupp |
||
514 | |||
515 | call [eax + SOCKET.connect_proc] |
||
516 | |||
517 | mov dword[esp+20], ebx |
||
518 | mov dword[esp+32], eax |
||
519 | ret |
||
520 | |||
521 | |||
522 | .notsupp: |
||
523 | mov dword[esp+20], EOPNOTSUPP |
||
524 | mov dword[esp+32], -1 |
||
525 | ret |
||
526 | |||
527 | .invalid: |
||
528 | mov dword[esp+20], EINVAL |
||
529 | mov dword[esp+32], -1 |
||
530 | ret |
||
531 | |||
532 | .already: |
||
533 | mov dword[esp+20], EALREADY |
||
534 | mov dword[esp+32], -1 |
||
535 | ret |
||
536 | |||
537 | |||
538 | connect_notsupp: |
||
539 | xor eax, eax |
||
540 | dec eax |
||
541 | mov ebx, EOPNOTSUPP |
||
542 | ret |
||
543 | |||
544 | |||
545 | ;----------------------------------------------------------------- |
||
546 | ; |
||
547 | ; SOCKET_listen |
||
548 | ; |
||
549 | ; IN: socket number in ecx |
||
550 | ; backlog in edx |
||
551 | ; OUT: eax is socket num, -1 on error |
||
552 | ; |
||
553 | ;----------------------------------------------------------------- |
||
554 | align 4 |
||
555 | SOCKET_listen: |
||
556 | |||
557 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx |
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558 | |||
559 | call SOCKET_num_to_ptr |
||
560 | jz .invalid |
||
561 | |||
562 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
563 | jne .notsupp |
||
564 | |||
565 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
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566 | jne .invalid |
||
567 | |||
568 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
||
569 | je .already |
||
570 | |||
571 | cmp [eax + IP_SOCKET.LocalIP], 0 |
||
572 | jne @f |
||
573 | push [IP_LIST + 4] ;;; fixme!!!! |
||
574 | pop [eax + IP_SOCKET.LocalIP] |
||
575 | @@: |
||
576 | |||
577 | cmp edx, MAX_backlog |
||
578 | jbe @f |
||
579 | mov edx, MAX_backlog |
||
580 | @@: |
||
581 | |||
582 | mov [eax + SOCKET.backlog], dx |
||
583 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
584 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
585 | mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer |
||
586 | |||
587 | push eax |
||
588 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
589 | pop eax |
||
590 | |||
591 | mov dword[esp+32], 0 |
||
592 | ret |
||
593 | |||
594 | .notsupp: |
||
595 | mov dword[esp+20], EOPNOTSUPP |
||
596 | mov dword[esp+32], -1 |
||
597 | ret |
||
598 | |||
599 | .invalid: |
||
600 | mov dword[esp+20], EINVAL |
||
601 | mov dword[esp+32], -1 |
||
602 | ret |
||
603 | |||
604 | .already: |
||
605 | mov dword[esp+20], EALREADY |
||
606 | mov dword[esp+32], -1 |
||
607 | ret |
||
608 | |||
609 | |||
610 | ;----------------------------------------------------------------- |
||
611 | ; |
||
612 | ; SOCKET_accept |
||
613 | ; |
||
614 | ; IN: socket number in ecx |
||
615 | ; addr in edx |
||
616 | ; addrlen in esi |
||
617 | ; OUT: eax is socket num, -1 on error |
||
618 | ; |
||
619 | ;----------------------------------------------------------------- |
||
620 | align 4 |
||
621 | SOCKET_accept: |
||
622 | |||
623 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
||
624 | |||
625 | call SOCKET_num_to_ptr |
||
626 | jz .invalid |
||
627 | |||
628 | test [eax + SOCKET.options], SO_ACCEPTCON |
||
629 | jz .invalid |
||
630 | |||
631 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
632 | jne .notsupp |
||
633 | |||
634 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
635 | jne .invalid |
||
636 | |||
637 | .loop: |
||
638 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block |
||
639 | |||
640 | ; Ok, we got a socket ptr |
||
641 | mov eax, [esi] |
||
642 | |||
643 | ; Change thread ID to that of the current thread |
||
644 | mov ebx, [TASK_BASE] |
||
645 | mov ebx, [ebx + TASKDATA.pid] |
||
646 | mov [eax + SOCKET.TID], ebx |
||
647 | |||
648 | ; Convert it to a socket number |
||
649 | call SOCKET_ptr_to_num |
||
650 | jz .invalid ; FIXME ? |
||
651 | |||
652 | ; and return it to caller |
||
653 | mov [esp+32], eax |
||
654 | ret |
||
655 | |||
656 | .block: |
||
657 | test [eax + SOCKET.options], SO_NONBLOCK |
||
658 | jnz .wouldblock |
||
659 | |||
660 | call SOCKET_block |
||
661 | jmp .loop |
||
662 | |||
663 | .wouldblock: |
||
664 | mov dword[esp+20], EWOULDBLOCK |
||
665 | mov dword[esp+32], -1 |
||
666 | ret |
||
667 | |||
668 | .invalid: |
||
669 | mov dword[esp+20], EINVAL |
||
670 | mov dword[esp+32], -1 |
||
671 | ret |
||
672 | |||
673 | .notsupp: |
||
674 | mov dword[esp+20], EOPNOTSUPP |
||
675 | mov dword[esp+32], -1 |
||
676 | ret |
||
677 | |||
678 | ;----------------------------------------------------------------- |
||
679 | ; |
||
680 | ; SOCKET_close |
||
681 | ; |
||
682 | ; IN: socket number in ecx |
||
683 | ; OUT: eax is socket num, -1 on error |
||
684 | ; |
||
685 | ;----------------------------------------------------------------- |
||
686 | align 4 |
||
687 | SOCKET_close: |
||
688 | |||
689 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_close: socknum=%u\n", ecx |
||
690 | |||
691 | call SOCKET_num_to_ptr |
||
692 | jz .invalid |
||
693 | |||
694 | mov dword[esp+32], 0 ; The socket exists, so we will succeed in closing it. |
||
695 | |||
696 | or [eax + SOCKET.options], SO_NONBLOCK ; Mark the socket as non blocking, we dont want it to block any longer! |
||
697 | |||
698 | test [eax + SOCKET.state], SS_BLOCKED ; Is the socket still in blocked state? |
||
699 | jz @f |
||
700 | call SOCKET_notify.unblock ; Unblock it. |
||
701 | @@: |
||
702 | |||
703 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
704 | jne .free |
||
705 | |||
706 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
707 | je .tcp |
||
708 | |||
709 | .free: |
||
710 | call SOCKET_free |
||
711 | ret |
||
712 | |||
713 | .tcp: |
||
714 | |||
715 | call TCP_usrclosed |
||
716 | |||
717 | test eax, eax |
||
718 | jz @f |
||
719 | call TCP_output ; If connection is not closed yet, send the FIN |
||
720 | @@: |
||
721 | |||
722 | ret |
||
723 | |||
724 | |||
725 | .invalid: |
||
726 | mov dword[esp+20], EINVAL |
||
727 | mov dword[esp+32], -1 |
||
728 | ret |
||
729 | |||
730 | |||
731 | ;----------------------------------------------------------------- |
||
732 | ; |
||
733 | ; SOCKET_receive |
||
734 | ; |
||
735 | ; IN: socket number in ecx |
||
736 | ; addr to buffer in edx |
||
737 | ; length of buffer in esi |
||
738 | ; flags in edi |
||
739 | ; OUT: eax is number of bytes copied, -1 on error |
||
740 | ; |
||
741 | ;----------------------------------------------------------------- |
||
742 | align 4 |
||
743 | SOCKET_receive: |
||
744 | |||
745 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi |
||
746 | |||
747 | call SOCKET_num_to_ptr |
||
748 | jz .invalid |
||
749 | |||
750 | .loop: |
||
751 | push edi |
||
752 | call [eax + SOCKET.rcv_proc] |
||
753 | pop edi |
||
754 | |||
755 | test [eax + SOCKET.state], SS_CANTRCVMORE |
||
756 | jnz .return |
||
757 | |||
758 | cmp ebx, EWOULDBLOCK |
||
759 | jne .return |
||
760 | |||
761 | test edi, MSG_DONTWAIT |
||
762 | jnz .return_err |
||
763 | |||
764 | ; test [eax + SOCKET.options], SO_NONBLOCK |
||
765 | ; jnz .return_err |
||
766 | |||
767 | call SOCKET_block |
||
768 | jmp .loop |
||
769 | |||
770 | |||
771 | .invalid: |
||
772 | push EINVAL |
||
773 | pop ebx |
||
774 | .return_err: |
||
775 | mov ecx, -1 |
||
776 | .return: |
||
777 | mov [esp+20], ebx |
||
778 | mov [esp+32], ecx |
||
779 | ret |
||
780 | |||
781 | |||
782 | |||
783 | |||
784 | |||
785 | align 4 |
||
786 | SOCKET_receive_dgram: |
||
787 | |||
788 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: DGRAM\n" |
||
789 | |||
790 | mov ebx, esi ; bufferlength |
||
791 | |||
792 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .wouldblock ; sets esi only on success. |
||
793 | mov ecx, [esi + socket_queue_entry.data_size] |
||
794 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: %u bytes data\n", ecx |
||
795 | |||
796 | cmp ecx, ebx ; If data segment does not fit in applications buffer, abort |
||
797 | ja .too_small |
||
798 | |||
799 | push eax ecx |
||
800 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
||
801 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
802 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi |
||
803 | |||
804 | ; copy the data from kernel buffer to application buffer |
||
805 | mov edi, edx ; bufferaddr |
||
806 | shr ecx, 1 |
||
807 | jnc .nb |
||
808 | movsb |
||
809 | .nb: |
||
810 | shr ecx, 1 |
||
811 | jnc .nw |
||
812 | movsw |
||
813 | .nw: |
||
814 | test ecx, ecx |
||
815 | jz .nd |
||
816 | rep movsd |
||
817 | .nd: |
||
818 | |||
819 | call NET_packet_free |
||
820 | pop ecx eax ; return number of bytes copied to application |
||
821 | xor ebx, ebx |
||
822 | ret |
||
823 | |||
824 | .too_small: |
||
825 | mov ecx, -1 |
||
826 | push EMSGSIZE |
||
827 | pop ebx |
||
828 | ret |
||
829 | |||
830 | .wouldblock: |
||
831 | push EWOULDBLOCK |
||
832 | pop ebx |
||
833 | ret |
||
834 | |||
835 | |||
836 | |||
837 | align 4 |
||
838 | SOCKET_receive_local: |
||
839 | |||
840 | ; does this socket have a PID yet? |
||
841 | cmp [eax + SOCKET.PID], 0 |
||
842 | jne @f |
||
843 | |||
844 | ; Change PID to that of current process |
||
845 | mov ebx, [TASK_BASE] |
||
846 | mov ebx, [ebx + TASKDATA.pid] |
||
847 | mov [eax + SOCKET.PID], ebx |
||
848 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
849 | @@: |
||
850 | |||
851 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
||
852 | |||
853 | ; ... continue to SOCKET_receive_stream |
||
854 | |||
855 | align 4 |
||
856 | SOCKET_receive_stream: |
||
857 | |||
858 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: STREAM\n" |
||
859 | |||
860 | cmp [eax + STREAM_SOCKET.rcv + RING_BUFFER.size], 0 |
||
861 | je .wouldblock |
||
862 | |||
863 | test edi, MSG_PEEK |
||
864 | jnz .peek |
||
865 | |||
866 | mov ecx, esi |
||
867 | mov edi, edx |
||
868 | xor edx, edx |
||
869 | |||
870 | push eax |
||
871 | add eax, STREAM_SOCKET.rcv |
||
872 | call SOCKET_ring_read ; copy data from kernel buffer to application buffer |
||
873 | call SOCKET_ring_free ; free read memory |
||
874 | pop eax |
||
875 | |||
876 | xor ebx, ebx ; errorcode = 0 (no error) |
||
877 | ret |
||
878 | |||
879 | .wouldblock: |
||
880 | push EWOULDBLOCK |
||
881 | pop ebx |
||
882 | xor ecx, ecx |
||
883 | ret |
||
884 | |||
885 | .peek: |
||
886 | mov ecx, [eax + STREAM_SOCKET.rcv + RING_BUFFER.size] |
||
887 | xor ebx, ebx |
||
888 | ret |
||
889 | |||
890 | |||
891 | ;----------------------------------------------------------------- |
||
892 | ; |
||
893 | ; SOCKET_send |
||
894 | ; |
||
895 | ; |
||
896 | ; IN: socket number in ecx |
||
897 | ; pointer to data in edx |
||
898 | ; datalength in esi |
||
899 | ; flags in edi |
||
900 | ; OUT: -1 on error |
||
901 | ; |
||
902 | ;----------------------------------------------------------------- |
||
903 | align 4 |
||
904 | SOCKET_send: |
||
905 | |||
906 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi |
||
907 | |||
908 | call SOCKET_num_to_ptr |
||
909 | jz .invalid |
||
910 | |||
911 | mov ecx, esi |
||
912 | mov esi, edx |
||
913 | |||
914 | jmp [eax + SOCKET.snd_proc] |
||
915 | |||
916 | .invalid: |
||
917 | mov dword[esp+20], EINVAL |
||
918 | mov dword[esp+32], -1 |
||
919 | ret |
||
920 | |||
921 | |||
922 | align 4 |
||
923 | SOCKET_send_udp: |
||
924 | |||
925 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: UDP\n" |
||
926 | |||
927 | mov [esp+32], ecx |
||
928 | call UDP_output |
||
929 | cmp eax, -1 |
||
930 | je .error |
||
931 | ret |
||
932 | |||
933 | .error: |
||
934 | mov dword[esp+32], -1 |
||
935 | mov dword[esp+20], EMSGSIZE ; FIXME: UDP_output should return error codes! |
||
936 | ret |
||
937 | |||
938 | |||
939 | align 4 |
||
940 | SOCKET_send_tcp: |
||
941 | |||
942 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: TCP\n" |
||
943 | |||
944 | push eax |
||
945 | add eax, STREAM_SOCKET.snd |
||
946 | call SOCKET_ring_write |
||
947 | pop eax |
||
948 | |||
949 | mov [esp+32], ecx |
||
950 | mov [eax + SOCKET.errorcode], 0 |
||
951 | push eax |
||
952 | call TCP_output ; FIXME: this doesnt look pretty, does it? |
||
953 | pop eax |
||
954 | mov eax, [eax + SOCKET.errorcode] |
||
955 | mov [esp+20], eax |
||
956 | ret |
||
957 | |||
958 | |||
959 | align 4 |
||
960 | SOCKET_send_ip: |
||
961 | |||
962 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: IPv4\n" |
||
963 | |||
964 | mov [esp+32], ecx |
||
965 | call IPv4_output_raw ; FIXME: IPv4_output_raw should return error codes! |
||
966 | cmp eax, -1 |
||
967 | je .error |
||
968 | ret |
||
969 | |||
970 | .error: |
||
971 | mov dword[esp+32], -1 |
||
972 | mov dword[esp+20], EMSGSIZE |
||
973 | ret |
||
974 | |||
975 | |||
976 | align 4 |
||
977 | SOCKET_send_icmp: |
||
978 | |||
979 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: ICMP\n" |
||
980 | |||
981 | mov [esp+32], ecx |
||
982 | call ICMP_output_raw ; FIXME: errorcodes |
||
983 | cmp eax, -1 |
||
984 | je .error |
||
985 | ret |
||
986 | |||
987 | .error: |
||
988 | mov dword[esp+32], -1 |
||
989 | mov dword[esp+20], EMSGSIZE |
||
990 | ret |
||
991 | |||
992 | |||
993 | align 4 |
||
994 | SOCKET_send_pppoe: |
||
995 | |||
996 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: PPPoE\n" |
||
997 | |||
998 | mov [esp+32], ecx |
||
999 | mov ebx, [eax + SOCKET.device] |
||
1000 | |||
1001 | call PPPoE_discovery_output ; FIXME: errorcodes |
||
1002 | cmp eax, -1 |
||
1003 | je .error |
||
1004 | ret |
||
1005 | |||
1006 | .error: |
||
1007 | mov dword[esp+32], -1 |
||
1008 | mov dword[esp+20], EMSGSIZE |
||
1009 | ret |
||
1010 | |||
1011 | |||
1012 | |||
1013 | align 4 |
||
1014 | SOCKET_send_local: |
||
1015 | |||
1016 | ; does this socket have a PID yet? |
||
1017 | cmp [eax + SOCKET.PID], 0 |
||
1018 | jne @f |
||
1019 | |||
1020 | ; Change PID to that of current process |
||
1021 | mov ebx, [TASK_BASE] |
||
1022 | mov ebx, [ebx + TASKDATA.pid] |
||
1023 | mov [eax + SOCKET.PID], ebx |
||
1024 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1025 | @@: |
||
1026 | mov [eax + SOCKET.snd_proc], SOCKET_send_local_ |
||
1027 | |||
1028 | align 4 |
||
1029 | SOCKET_send_local_: |
||
1030 | |||
1031 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: LOCAL\n" |
||
1032 | |||
1033 | ; get the other side's socket and check if it still exists |
||
1034 | mov eax, [eax + SOCKET.device] |
||
1035 | call SOCKET_check |
||
1036 | jz .invalid |
||
1037 | |||
1038 | ; allright, shove in the data! |
||
1039 | push eax |
||
1040 | add eax, STREAM_SOCKET.rcv |
||
1041 | call SOCKET_ring_write |
||
1042 | pop eax |
||
1043 | |||
1044 | ; return the number of written bytes (or errorcode) to application |
||
1045 | mov [esp+32], ecx |
||
1046 | |||
1047 | ; and notify the other end |
||
1048 | call SOCKET_notify |
||
1049 | |||
1050 | ret |
||
1051 | |||
1052 | .invalid: |
||
1053 | mov dword[esp+32], -1 |
||
1054 | mov dword[esp+20], EINVAL |
||
1055 | ret |
||
1056 | |||
1057 | |||
1058 | ;----------------------------------------------------------------- |
||
1059 | ; |
||
1060 | ; SOCKET_get_options |
||
1061 | ; |
||
1062 | ; IN: ecx = socket number |
||
1063 | ; edx = pointer to the options: |
||
1064 | ; dd level, optname, optval, optlen |
||
1065 | ; OUT: -1 on error |
||
1066 | ; |
||
1067 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
1068 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1069 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
||
1070 | ; |
||
1071 | ;----------------------------------------------------------------- |
||
1072 | align 4 |
||
1073 | SOCKET_get_opt: |
||
1074 | |||
1075 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_get_opt\n" |
||
1076 | |||
1077 | call SOCKET_num_to_ptr |
||
1078 | jz .invalid |
||
1079 | |||
1080 | cmp dword [edx], IP_PROTO_TCP |
||
1081 | jne .invalid |
||
1082 | cmp dword [edx+4], -2 |
||
1083 | je @f |
||
1084 | cmp dword [edx+4], -3 |
||
1085 | jne .invalid |
||
1086 | @@: |
||
1087 | ; mov eax, [edx+12] |
||
1088 | ; test eax, eax |
||
1089 | ; jz .fail |
||
1090 | ; cmp dword [eax], 4 |
||
1091 | ; mov dword [eax], 4 |
||
1092 | ; jb .fail |
||
1093 | ; stdcall net_socket_num_to_addr, ecx |
||
1094 | ; test eax, eax |
||
1095 | ; jz .fail |
||
1096 | ; ; todo: check that eax is really TCP socket |
||
1097 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
1098 | ; cmp dword [edx+4], -2 |
||
1099 | ; jz @f |
||
1100 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1101 | @@: |
||
1102 | mov eax, [edx+8] |
||
1103 | test eax, eax |
||
1104 | jz @f |
||
1105 | mov [eax], ecx |
||
1106 | @@: |
||
1107 | mov dword [esp+32], 0 |
||
1108 | ret |
||
1109 | |||
1110 | .invalid: |
||
1111 | mov dword[esp+32], -1 |
||
1112 | mov dword[esp+20], EINVAL |
||
1113 | ret |
||
1114 | |||
1115 | |||
1116 | |||
1117 | ;----------------------------------------------------------------- |
||
1118 | ; |
||
1119 | ; SOCKET_set_options |
||
1120 | ; |
||
1121 | ; IN: ecx = socket number |
||
1122 | ; edx = pointer to the options: |
||
1123 | ; dd level, optname, optlen, optval |
||
1124 | ; OUT: -1 on error |
||
1125 | ; |
||
1126 | ;----------------------------------------------------------------- |
||
1127 | align 4 |
||
1128 | SOCKET_set_opt: |
||
1129 | |||
1130 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt\n" |
||
1131 | |||
1132 | call SOCKET_num_to_ptr |
||
1133 | jz .invalid |
||
1134 | |||
1135 | cmp dword [edx], SOL_SOCKET |
||
1136 | jne .invalid |
||
1137 | |||
1138 | cmp dword [edx+4], SO_BINDTODEVICE |
||
1139 | je .bind |
||
1140 | |||
1141 | .invalid: |
||
1142 | mov dword[esp+32], -1 |
||
1143 | mov dword[esp+20], EINVAL |
||
1144 | ret |
||
1145 | |||
1146 | .bind: |
||
1147 | cmp dword[edx+8], 0 |
||
1148 | je .unbind |
||
1149 | |||
1150 | movzx edx, byte[edx + 9] |
||
1151 | cmp edx, NET_DEVICES_MAX |
||
1152 | ja .invalid |
||
1153 | |||
1154 | mov edx, [NET_DRV_LIST + 4*edx] |
||
1155 | test edx, edx |
||
1156 | jz .already |
||
1157 | mov [eax + SOCKET.device], edx |
||
1158 | |||
1159 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx |
||
1160 | |||
1161 | mov dword[esp+32], 0 ; success! |
||
1162 | ret |
||
1163 | |||
1164 | .unbind: |
||
1165 | mov [eax + SOCKET.device], 0 |
||
1166 | |||
1167 | mov dword[esp+32], 0 ; success! |
||
1168 | ret |
||
1169 | |||
1170 | .already: |
||
1171 | mov dword[esp+20], EALREADY |
||
1172 | mov dword[esp+32], -1 |
||
1173 | ret |
||
1174 | |||
1175 | |||
1176 | |||
1177 | |||
1178 | ;----------------------------------------------------------------- |
||
1179 | ; |
||
1180 | ; SOCKET_pair |
||
1181 | ; |
||
1182 | ; Allocates a pair of linked LOCAL domain sockets |
||
1183 | ; |
||
1184 | ; IN: / |
||
1185 | ; OUT: eax is socket1 num, -1 on error |
||
1186 | ; ebx is socket2 num |
||
1187 | ; |
||
1188 | ;----------------------------------------------------------------- |
||
1189 | align 4 |
||
1190 | SOCKET_pair: |
||
1191 | |||
1192 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_pair\n" |
||
1193 | |||
1194 | call SOCKET_alloc |
||
1195 | jz .nomem1 |
||
1196 | mov [esp+32], edi ; application's eax |
||
1197 | |||
1198 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1199 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1200 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1201 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1202 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1203 | mov [eax + SOCKET.PID], 0 |
||
1204 | mov ebx, eax |
||
1205 | |||
1206 | call SOCKET_alloc |
||
1207 | jz .nomem2 |
||
1208 | mov [esp+20], edi ; application's ebx |
||
1209 | |||
1210 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1211 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1212 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1213 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1214 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1215 | mov [eax + SOCKET.PID], 0 |
||
1216 | |||
1217 | ; Link the two sockets to eachother |
||
1218 | mov [eax + SOCKET.device], ebx |
||
1219 | mov [ebx + SOCKET.device], eax |
||
1220 | |||
1221 | lea eax, [eax + STREAM_SOCKET.rcv] |
||
1222 | call SOCKET_ring_create |
||
1223 | |||
1224 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
1225 | call SOCKET_ring_create |
||
1226 | pop eax |
||
1227 | |||
1228 | ret |
||
1229 | |||
1230 | .nomem2: |
||
1231 | mov eax, ebx |
||
1232 | call SOCKET_free |
||
1233 | .nomem1: |
||
1234 | mov dword[esp+32], -1 |
||
1235 | mov dword[esp+28], ENOMEM |
||
1236 | ret |
||
1237 | |||
1238 | |||
1239 | |||
1240 | ;----------------------------------------------------------------- |
||
1241 | ; |
||
1242 | ; SOCKET_debug |
||
1243 | ; |
||
1244 | ; Copies socket variables to application buffer |
||
1245 | ; |
||
1246 | ; IN: ecx = socket number |
||
1247 | ; edx = pointer to buffer |
||
1248 | ; |
||
1249 | ; OUT: -1 on error |
||
1250 | ;----------------------------------------------------------------- |
||
1251 | align 4 |
||
1252 | SOCKET_debug: |
||
1253 | |||
1254 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_debug\n" |
||
1255 | |||
1256 | mov edi, edx |
||
1257 | |||
1258 | test ecx, ecx |
||
1259 | jz .returnall |
||
1260 | |||
1261 | call SOCKET_num_to_ptr |
||
1262 | jz .invalid |
||
1263 | |||
1264 | mov esi, eax |
||
1265 | mov ecx, SOCKETBUFFSIZE/4 |
||
1266 | rep movsd |
||
1267 | |||
1268 | mov dword[esp+32], 0 |
||
1269 | ret |
||
1270 | |||
1271 | .returnall: |
||
1272 | mov ebx, net_sockets |
||
1273 | .next_socket: |
||
1274 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1275 | test ebx, ebx |
||
1276 | jz .done |
||
1277 | mov eax, [ebx + SOCKET.Number] |
||
1278 | stosd |
||
1279 | jmp .next_socket |
||
1280 | .done: |
||
1281 | xor eax, eax |
||
1282 | stosd |
||
1283 | mov dword[esp+32], eax |
||
1284 | ret |
||
1285 | |||
1286 | .invalid: |
||
1287 | mov dword[esp+32], -1 |
||
1288 | mov dword[esp+28], EINVAL |
||
1289 | ret |
||
1290 | |||
1291 | |||
1292 | ;----------------------------------------------------------------- |
||
1293 | ; |
||
1294 | ; SOCKET_find_port |
||
1295 | ; |
||
1296 | ; Fills in the local port number for TCP and UDP sockets |
||
1297 | ; This procedure always works because the number of sockets is |
||
1298 | ; limited to a smaller number then the number of possible ports |
||
1299 | ; |
||
1300 | ; IN: eax = socket pointer |
||
1301 | ; OUT: / |
||
1302 | ; |
||
1303 | ;----------------------------------------------------------------- |
||
1304 | align 4 |
||
1305 | SOCKET_find_port: |
||
1306 | |||
1307 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_find_port\n" |
||
1308 | |||
1309 | push ebx esi ecx |
||
1310 | |||
1311 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
1312 | je .udp |
||
1313 | |||
1314 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1315 | je .tcp |
||
1316 | |||
1317 | pop ecx esi ebx |
||
1318 | ret |
||
1319 | |||
1320 | .udp: |
||
1321 | mov bx, [last_UDP_port] |
||
1322 | call .findit |
||
1323 | mov [last_UDP_port], bx |
||
1324 | |||
1325 | pop ecx esi ebx |
||
1326 | ret |
||
1327 | |||
1328 | .tcp: |
||
1329 | mov bx, [last_TCP_port] |
||
1330 | call .findit |
||
1331 | mov [last_TCP_port], bx |
||
1332 | |||
1333 | pop ecx esi ebx |
||
1334 | ret |
||
1335 | |||
1336 | |||
1337 | .restart: |
||
1338 | mov bx, MIN_EPHEMERAL_PORT_N |
||
1339 | .findit: |
||
1340 | cmp bx, MAX_EPHEMERAL_PORT_N |
||
1341 | je .restart |
||
1342 | |||
1343 | add bh, 1 |
||
1344 | adc bl, 0 |
||
1345 | |||
1346 | call SOCKET_check_port |
||
1347 | jz .findit |
||
1348 | ret |
||
1349 | |||
1350 | |||
1351 | |||
1352 | ;----------------------------------------------------------------- |
||
1353 | ; |
||
1354 | ; SOCKET_check_port (to be used with AF_INET only!) |
||
1355 | ; |
||
1356 | ; Checks if a local port number is unused |
||
1357 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1358 | ; |
||
1359 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
||
1360 | ; bx = proposed socket number (network byte order) |
||
1361 | ; |
||
1362 | ; OUT: ZF = set on error |
||
1363 | ; |
||
1364 | ;----------------------------------------------------------------- |
||
1365 | align 4 |
||
1366 | SOCKET_check_port: |
||
1367 | |||
1368 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_port: " |
||
1369 | |||
1370 | pusha |
||
1371 | mov ecx, socket_mutex |
||
1372 | call mutex_lock |
||
1373 | popa |
||
1374 | |||
1375 | mov ecx, [eax + SOCKET.Protocol] |
||
1376 | mov edx, [eax + IP_SOCKET.LocalIP] |
||
1377 | mov esi, net_sockets |
||
1378 | |||
1379 | .next_socket: |
||
1380 | mov esi, [esi + SOCKET.NextPtr] |
||
1381 | or esi, esi |
||
1382 | jz .port_ok |
||
1383 | |||
1384 | cmp [esi + SOCKET.Protocol], ecx |
||
1385 | jne .next_socket |
||
1386 | |||
1387 | cmp [esi + IP_SOCKET.LocalIP], edx |
||
1388 | jne .next_socket |
||
1389 | |||
1390 | cmp [esi + UDP_SOCKET.LocalPort], bx |
||
1391 | jne .next_socket |
||
1392 | |||
1393 | pusha |
||
1394 | mov ecx, socket_mutex |
||
1395 | call mutex_unlock |
||
1396 | popa |
||
1397 | |||
1398 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x already in use\n", bx ; FIXME: find a way to print big endian values with debugf |
||
1399 | ret |
||
1400 | |||
1401 | .port_ok: |
||
1402 | pusha |
||
1403 | mov ecx, socket_mutex |
||
1404 | call mutex_unlock |
||
1405 | popa |
||
1406 | |||
1407 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf |
||
1408 | mov [eax + UDP_SOCKET.LocalPort], bx |
||
1409 | or bx, bx ; clear the zero-flag |
||
1410 | ret |
||
1411 | |||
1412 | |||
1413 | |||
1414 | ;----------------------------------------------------------------- |
||
1415 | ; |
||
1416 | ; SOCKET_input |
||
1417 | ; |
||
1418 | ; Updates a (stateless) socket with received data |
||
1419 | ; |
||
1420 | ; Note: the mutex should already be set ! |
||
1421 | ; |
||
1422 | ; IN: eax = socket ptr |
||
1423 | ; ecx = data size |
||
1424 | ; esi = ptr to data |
||
1425 | ; [esp] = ptr to buf |
||
1426 | ; [esp + 4] = buf size |
||
1427 | ; |
||
1428 | ; OUT: / |
||
1429 | ; |
||
1430 | ;----------------------------------------------------------------- |
||
1431 | align 4 |
||
1432 | SOCKET_input: |
||
1433 | |||
1434 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
||
1435 | |||
1436 | mov [esp+4], ecx |
||
1437 | push esi |
||
1438 | mov esi, esp |
||
1439 | |||
1440 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
||
1441 | |||
1442 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: success\n" |
||
1443 | add esp, sizeof.socket_queue_entry |
||
1444 | |||
1445 | pusha |
||
1446 | lea ecx, [eax + SOCKET.mutex] |
||
1447 | call mutex_unlock |
||
1448 | popa |
||
1449 | |||
1450 | jmp SOCKET_notify |
||
1451 | |||
1452 | .full: |
||
1453 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket %x is full!\n", eax |
||
1454 | |||
1455 | pusha |
||
1456 | lea ecx, [eax + SOCKET.mutex] |
||
1457 | call mutex_unlock |
||
1458 | popa |
||
1459 | |||
1460 | call NET_packet_free |
||
1461 | add esp, 8 |
||
1462 | |||
1463 | ret |
||
1464 | |||
1465 | |||
1466 | ;-------------------------- |
||
1467 | ; |
||
1468 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1469 | ; |
||
1470 | align 4 |
||
1471 | SOCKET_ring_create: |
||
1472 | |||
1473 | push esi |
||
1474 | mov esi, eax |
||
1475 | |||
1476 | push edx |
||
1477 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1478 | pop edx |
||
1479 | |||
1480 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_created: %x\n", eax |
||
1481 | |||
1482 | pusha |
||
1483 | lea ecx, [esi + RING_BUFFER.mutex] |
||
1484 | call mutex_init |
||
1485 | popa |
||
1486 | |||
1487 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1488 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1489 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1490 | mov [esi + RING_BUFFER.size], 0 |
||
1491 | add eax, SOCKET_MAXDATA |
||
1492 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1493 | mov eax, esi |
||
1494 | pop esi |
||
1495 | |||
1496 | ret |
||
1497 | |||
1498 | ;----------------------------------------------------------------- |
||
1499 | ; |
||
1500 | ; SOCKET_ring_write |
||
1501 | ; |
||
1502 | ; Adds data to a stream socket, and updates write pointer and size |
||
1503 | ; |
||
1504 | ; IN: eax = ptr to ring struct |
||
1505 | ; ecx = data size |
||
1506 | ; esi = ptr to data |
||
1507 | ; |
||
1508 | ; OUT: ecx = number of bytes stored |
||
1509 | ; |
||
1510 | ;----------------------------------------------------------------- |
||
1511 | align 4 |
||
1512 | SOCKET_ring_write: |
||
1513 | |||
1514 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
||
1515 | |||
1516 | ; lock mutex |
||
1517 | pusha |
||
1518 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1519 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1520 | popa |
||
1521 | |||
1522 | ; calculate available size |
||
1523 | mov edi, SOCKET_MAXDATA |
||
1524 | sub edi, [eax + RING_BUFFER.size] ; available buffer size in edi |
||
1525 | cmp ecx, edi |
||
1526 | jbe .copy |
||
1527 | mov ecx, edi |
||
1528 | .copy: |
||
1529 | mov edi, [eax + RING_BUFFER.write_ptr] |
||
1530 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
||
1531 | |||
1532 | ; update write ptr |
||
1533 | push edi |
||
1534 | add edi, ecx |
||
1535 | cmp edi, [eax + RING_BUFFER.end_ptr] |
||
1536 | jb @f |
||
1537 | sub edi, SOCKET_MAXDATA ; WRAP |
||
1538 | @@: |
||
1539 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1540 | pop edi |
||
1541 | |||
1542 | ; update size |
||
1543 | add [eax + RING_BUFFER.size], ecx |
||
1544 | |||
1545 | ; copy the data |
||
1546 | push ecx |
||
1547 | shr ecx, 1 |
||
1548 | jnc .nb |
||
1549 | movsb |
||
1550 | .nb: |
||
1551 | shr ecx, 1 |
||
1552 | jnc .nw |
||
1553 | movsw |
||
1554 | .nw: |
||
1555 | test ecx, ecx |
||
1556 | jz .nd |
||
1557 | rep movsd |
||
1558 | .nd: |
||
1559 | pop ecx |
||
1560 | |||
1561 | ; unlock mutex |
||
1562 | pusha |
||
1563 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1564 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1565 | popa |
||
1566 | |||
1567 | ret |
||
1568 | |||
1569 | ;----------------------------------------------------------------- |
||
1570 | ; |
||
1571 | ; SOCKET_ring_read |
||
1572 | ; |
||
1573 | ; IN: eax = ring struct ptr |
||
1574 | ; ecx = bytes to read |
||
1575 | ; edx = offset |
||
1576 | ; edi = ptr to buffer start |
||
1577 | ; |
||
1578 | ; OUT: eax = unchanged |
||
1579 | ; ecx = number of bytes read (0 on error) |
||
1580 | ; edx = destroyed |
||
1581 | ; esi = destroyed |
||
1582 | ; edi = ptr to buffer end |
||
1583 | ; |
||
1584 | ;----------------------------------------------------------------- |
||
1585 | align 4 |
||
1586 | SOCKET_ring_read: |
||
1587 | |||
1588 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx |
||
1589 | |||
1590 | pusha |
||
1591 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1592 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1593 | popa |
||
1594 | |||
1595 | mov esi, [eax + RING_BUFFER.read_ptr] |
||
1596 | add esi, edx ; esi = start_ptr + offset |
||
1597 | |||
1598 | neg edx |
||
1599 | add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset |
||
1600 | jle .no_data_at_all |
||
1601 | |||
1602 | pusha |
||
1603 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1604 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1605 | popa |
||
1606 | |||
1607 | cmp ecx, edx |
||
1608 | ja .less_data |
||
1609 | |||
1610 | .copy: |
||
1611 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
||
1612 | push ecx |
||
1613 | shr ecx, 1 |
||
1614 | jnc .nb |
||
1615 | movsb |
||
1616 | .nb: |
||
1617 | shr ecx, 1 |
||
1618 | jnc .nw |
||
1619 | movsw |
||
1620 | .nw: |
||
1621 | test ecx, ecx |
||
1622 | jz .nd |
||
1623 | rep movsd |
||
1624 | .nd: |
||
1625 | pop ecx |
||
1626 | ret |
||
1627 | |||
1628 | .no_data_at_all: |
||
1629 | pusha |
||
1630 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1631 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1632 | popa |
||
1633 | |||
1634 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: no data at all!\n" |
||
1635 | xor ecx, ecx |
||
1636 | ret |
||
1637 | |||
1638 | .less_data: |
||
1639 | mov ecx, edx |
||
1640 | jmp .copy |
||
1641 | |||
1642 | |||
1643 | ;----------------------------------------------------------------- |
||
1644 | ; |
||
1645 | ; SOCKET_ring_free |
||
1646 | ; |
||
1647 | ; Free's some bytes from the ringbuffer |
||
1648 | ; |
||
1649 | ; IN: eax = ptr to ring struct |
||
1650 | ; ecx = data size |
||
1651 | ; |
||
1652 | ; OUT: ecx = number of bytes free-ed |
||
1653 | ; |
||
1654 | ;----------------------------------------------------------------- |
||
1655 | align 4 |
||
1656 | SOCKET_ring_free: |
||
1657 | |||
1658 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
||
1659 | |||
1660 | push eax ecx |
||
1661 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1662 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1663 | pop ecx eax |
||
1664 | |||
1665 | sub [eax + RING_BUFFER.size], ecx |
||
1666 | jb .error |
||
1667 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1668 | |||
1669 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1670 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1671 | jb @f |
||
1672 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1673 | @@: |
||
1674 | |||
1675 | push eax ecx |
||
1676 | lea ecx, [eax + RING_BUFFER.mutex] ; TODO: check what registers this function actually destroys |
||
1677 | call mutex_unlock |
||
1678 | pop ecx eax |
||
1679 | |||
1680 | ret |
||
1681 | |||
1682 | .error: ; we could free all available bytes, but that would be stupid, i guess.. |
||
1683 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: buffer=%x error!\n", eax |
||
1684 | add [eax + RING_BUFFER.size], ecx |
||
1685 | |||
1686 | push eax |
||
1687 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1688 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1689 | pop eax |
||
1690 | |||
1691 | xor ecx, ecx |
||
1692 | ret |
||
1693 | |||
1694 | |||
1695 | ;----------------------------------------------------------------- |
||
1696 | ; |
||
1697 | ; SOCKET_block |
||
1698 | ; |
||
1699 | ; Suspends the thread attached to a socket |
||
1700 | ; |
||
1701 | ; IN: eax = socket ptr |
||
1702 | ; OUT: eax = unchanged |
||
1703 | ; |
||
1704 | ;----------------------------------------------------------------- |
||
1705 | align 4 |
||
1706 | SOCKET_block: |
||
1707 | |||
1708 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: %x\n", eax |
||
1709 | |||
1710 | pushf |
||
1711 | push eax |
||
1712 | cli |
||
1713 | |||
1714 | ; Set the 'socket is blocked' flag |
||
1715 | or [eax + SOCKET.state], SS_BLOCKED |
||
1716 | |||
1717 | ; Suspend the thread |
||
1718 | push edx |
||
1719 | mov edx, [TASK_BASE] |
||
1720 | mov [edx + TASKDATA.state], 1 ; Suspended |
||
1721 | |||
1722 | ; Remember the thread ID so we can wake it up again |
||
1723 | mov edx, [edx + TASKDATA.pid] |
||
1724 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: suspending thread: %u\n", edx |
||
1725 | mov [eax + SOCKET.TID], edx |
||
1726 | pop edx |
||
1727 | |||
1728 | call change_task |
||
1729 | pop eax |
||
1730 | popf |
||
1731 | |||
1732 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: continueing\n" |
||
1733 | |||
1734 | ret |
||
1735 | |||
1736 | |||
1737 | ;----------------------------------------------------------------- |
||
1738 | ; |
||
1739 | ; SOCKET_notify |
||
1740 | ; |
||
1741 | ; notify's the owner of a socket that something happened |
||
1742 | ; |
||
1743 | ; IN: eax = socket ptr |
||
1744 | ; OUT: eax = unchanged |
||
1745 | ; |
||
1746 | ;----------------------------------------------------------------- |
||
1747 | align 4 |
||
1748 | SOCKET_notify: |
||
1749 | |||
1750 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: %x\n", eax |
||
1751 | |||
1752 | call SOCKET_check |
||
1753 | jz .error |
||
1754 | |||
1755 | test [eax + SOCKET.state], SS_BLOCKED |
||
1756 | jnz .unblock |
||
1757 | |||
1758 | ; test [eax + SOCKET.options], SO_NONBLOCK |
||
1759 | ; jz .error |
||
1760 | |||
1761 | push eax ecx esi |
||
1762 | |||
1763 | ; socket exists and is of non blocking type. |
||
1764 | ; We'll try to flag an event to the thread |
||
1765 | |||
1766 | mov eax, [eax + SOCKET.TID] |
||
1767 | test eax, eax |
||
1768 | jz .done |
||
1769 | mov ecx, 1 |
||
1770 | mov esi, TASK_DATA + TASKDATA.pid |
||
1771 | |||
1772 | .next_pid: |
||
1773 | cmp [esi], eax |
||
1774 | je .found_pid |
||
1775 | inc ecx |
||
1776 | add esi, 0x20 |
||
1777 | cmp ecx, [TASK_COUNT] |
||
1778 | jbe .next_pid |
||
1779 | ; PID not found, TODO: close socket! |
||
1780 | jmp .done |
||
1781 | |||
1782 | .found_pid: |
||
1783 | shl ecx, 8 |
||
1784 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1785 | |||
1786 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: poking thread %u!\n", eax |
||
1787 | jmp .done |
||
1788 | |||
1789 | .unblock: |
||
1790 | push eax ecx esi |
||
1791 | ; Clear the 'socket is blocked' flag |
||
1792 | and [eax + SOCKET.state], not SS_BLOCKED |
||
1793 | |||
1794 | ; Find the thread's TASK_DATA |
||
1795 | mov eax, [eax + SOCKET.TID] |
||
1796 | test eax, eax |
||
1797 | jz .error |
||
1798 | xor ecx, ecx |
||
1799 | inc ecx |
||
1800 | mov esi, TASK_DATA |
||
1801 | .next: |
||
1802 | cmp [esi + TASKDATA.pid], eax |
||
1803 | je .found |
||
1804 | inc ecx |
||
1805 | add esi, 0x20 |
||
1806 | cmp ecx, [TASK_COUNT] |
||
1807 | jbe .next |
||
1808 | jmp .error |
||
1809 | .found: |
||
1810 | |||
1811 | ; Run the thread |
||
1812 | mov [esi + TASKDATA.state], 0 ; Running |
||
1813 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Unblocked socket!\n" |
||
1814 | |||
1815 | .done: |
||
1816 | pop esi ecx eax |
||
1817 | |||
1818 | .error: |
||
1819 | ret |
||
1820 | |||
1821 | |||
1822 | ;-------------------------------------------------------------------- |
||
1823 | ; |
||
1824 | ; SOCKET_alloc |
||
1825 | ; |
||
1826 | ; Allocate memory for socket data and put new socket into the list |
||
1827 | ; Newly created socket is initialized with calling PID and number and |
||
1828 | ; put into beginning of list (which is a fastest way). |
||
1829 | ; |
||
1830 | ; IN: / |
||
1831 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1832 | ; edi = socket number |
||
1833 | ; ZF = cleared on error |
||
1834 | ; |
||
1835 | ;-------------------------------------------------------------------- |
||
1836 | align 4 |
||
1837 | SOCKET_alloc: |
||
1838 | |||
1839 | push ebx |
||
1840 | |||
1841 | stdcall kernel_alloc, SOCKETBUFFSIZE |
||
1842 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: ptr=%x\n", eax |
||
1843 | or eax, eax |
||
1844 | jz .exit |
||
1845 | |||
1846 | ; zero-initialize allocated memory |
||
1847 | push eax |
||
1848 | mov edi, eax |
||
1849 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1850 | xor eax, eax |
||
1851 | rep stosd |
||
1852 | pop eax |
||
1853 | |||
1854 | ; set send-and receive procedures to return -1 |
||
1855 | mov [eax + SOCKET.snd_proc], .not_yet |
||
1856 | mov [eax + SOCKET.rcv_proc], .not_yet |
||
1857 | |||
1858 | pusha |
||
1859 | mov ecx, socket_mutex |
||
1860 | call mutex_lock |
||
1861 | popa |
||
1862 | |||
1863 | ; find first free socket number and use it |
||
1864 | mov edi, [last_socket_num] |
||
1865 | .next_socket_number: |
||
1866 | inc edi |
||
1867 | jz .next_socket_number ; avoid socket nr 0 |
||
1868 | cmp edi, -1 |
||
1869 | je .next_socket_number ; avoid socket nr -1 |
||
1870 | mov ebx, net_sockets |
||
1871 | .next_socket: |
||
1872 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1873 | test ebx, ebx |
||
1874 | jz .last_socket |
||
1875 | |||
1876 | cmp [ebx + SOCKET.Number], edi |
||
1877 | jne .next_socket |
||
1878 | jmp .next_socket_number |
||
1879 | |||
1880 | .last_socket: |
||
1881 | mov [last_socket_num], edi |
||
1882 | mov [eax + SOCKET.Number], edi |
||
1883 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: number=%u\n", edi |
||
1884 | |||
1885 | ; Fill in PID |
||
1886 | mov ebx, [TASK_BASE] |
||
1887 | mov ebx, [ebx + TASKDATA.pid] |
||
1888 | mov [eax + SOCKET.PID], ebx |
||
1889 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1890 | |||
1891 | ; init mutex |
||
1892 | pusha |
||
1893 | lea ecx, [eax + SOCKET.mutex] |
||
1894 | call mutex_init |
||
1895 | popa |
||
1896 | |||
1897 | ; add socket to the list by re-arranging some pointers |
||
1898 | mov ebx, [net_sockets + SOCKET.NextPtr] |
||
1899 | |||
1900 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1901 | mov [eax + SOCKET.NextPtr], ebx |
||
1902 | |||
1903 | test ebx, ebx |
||
1904 | jz @f |
||
1905 | |||
1906 | pusha |
||
1907 | lea ecx, [ebx + SOCKET.mutex] |
||
1908 | call mutex_lock |
||
1909 | popa |
||
1910 | |||
1911 | mov [ebx + SOCKET.PrevPtr], eax |
||
1912 | |||
1913 | pusha |
||
1914 | lea ecx, [ebx + SOCKET.mutex] |
||
1915 | call mutex_unlock |
||
1916 | popa |
||
1917 | @@: |
||
1918 | |||
1919 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1920 | or eax, eax ; used to clear zero flag |
||
1921 | |||
1922 | pusha |
||
1923 | mov ecx, socket_mutex |
||
1924 | call mutex_unlock |
||
1925 | popa |
||
1926 | |||
1927 | .exit: |
||
1928 | pop ebx |
||
1929 | |||
1930 | ret |
||
1931 | |||
1932 | .not_yet: |
||
1933 | mov dword[esp+20], ENOTCONN |
||
1934 | mov dword[esp+32], -1 |
||
1935 | ret |
||
1936 | |||
1937 | |||
1938 | ;---------------------------------------------------- |
||
1939 | ; |
||
1940 | ; SOCKET_free |
||
1941 | ; |
||
1942 | ; Free socket data memory and remove socket from the list |
||
1943 | ; Caller should lock and unlock socket_mutex |
||
1944 | ; |
||
1945 | ; IN: eax = socket ptr |
||
1946 | ; OUT: / |
||
1947 | ; |
||
1948 | ;---------------------------------------------------- |
||
1949 | align 4 |
||
1950 | SOCKET_free: |
||
1951 | |||
1952 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: %x\n", eax |
||
1953 | |||
1954 | call SOCKET_check |
||
1955 | jz .error |
||
1956 | |||
1957 | push ebx |
||
1958 | |||
1959 | pusha |
||
1960 | lea ecx, [eax + SOCKET.mutex] |
||
1961 | call mutex_lock |
||
1962 | popa |
||
1963 | |||
1964 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
1965 | jnz .no_tcp |
||
1966 | |||
1967 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1968 | jnz .no_tcp |
||
1969 | |||
1970 | mov ebx, eax |
||
1971 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1972 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1973 | mov eax, ebx |
||
1974 | .no_tcp: |
||
1975 | |||
1976 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: freeing socket %x\n", eax |
||
1977 | push eax ; this will be passed to kernel_free |
||
1978 | mov ebx, [eax + SOCKET.NextPtr] |
||
1979 | mov eax, [eax + SOCKET.PrevPtr] |
||
1980 | |||
1981 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
||
1982 | |||
1983 | test eax, eax |
||
1984 | jz @f |
||
1985 | mov [eax + SOCKET.NextPtr], ebx |
||
1986 | @@: |
||
1987 | |||
1988 | test ebx, ebx |
||
1989 | jz @f |
||
1990 | mov [ebx + SOCKET.PrevPtr], eax |
||
1991 | @@: |
||
1992 | |||
1993 | call kernel_free |
||
1994 | pop ebx |
||
1995 | |||
1996 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: success!\n" |
||
1997 | |||
1998 | .error: |
||
1999 | ret |
||
2000 | |||
2001 | ;------------------------------------ |
||
2002 | ; |
||
2003 | ; SOCKET_fork |
||
2004 | ; |
||
2005 | ; Create a child socket |
||
2006 | ; |
||
2007 | ; IN: socket nr in ebx |
||
2008 | ; OUT: child socket nr in eax |
||
2009 | ; |
||
2010 | ;----------------------------------- |
||
2011 | align 4 |
||
2012 | SOCKET_fork: |
||
2013 | |||
2014 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_fork: %x\n", ebx |
||
2015 | |||
2016 | ; Exit if backlog queue is full |
||
2017 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
||
2018 | cmp ax, [ebx + SOCKET.backlog] |
||
2019 | jae .fail |
||
2020 | |||
2021 | ; Allocate new socket |
||
2022 | push ebx |
||
2023 | call SOCKET_alloc |
||
2024 | pop ebx |
||
2025 | jz .fail |
||
2026 | |||
2027 | push eax |
||
2028 | mov esi, esp |
||
2029 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
2030 | pop eax |
||
2031 | |||
2032 | ; Copy structure from current socket to new |
||
2033 | ; We start at PID to preserve the socket num, 2 pointers and mutex |
||
2034 | ; TID will be filled in later |
||
2035 | lea esi, [ebx + SOCKET.PID] |
||
2036 | lea edi, [eax + SOCKET.PID] |
||
2037 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
2038 | rep movsd |
||
2039 | |||
2040 | and [eax + SOCKET.options], not SO_ACCEPTCON |
||
2041 | |||
2042 | ; Notify owner of parent socket |
||
2043 | push eax |
||
2044 | mov eax, ebx |
||
2045 | call SOCKET_notify |
||
2046 | pop eax |
||
2047 | |||
2048 | ret |
||
2049 | |||
2050 | .fail2: |
||
2051 | add esp, 4+4+4 |
||
2052 | .fail: |
||
2053 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_fork: failed\n" |
||
2054 | xor eax, eax |
||
2055 | ret |
||
2056 | |||
2057 | |||
2058 | ;--------------------------------------------------- |
||
2059 | ; |
||
2060 | ; SOCKET_num_to_ptr |
||
2061 | ; |
||
2062 | ; Get socket structure address by its number |
||
2063 | ; |
||
2064 | ; IN: ecx = socket number |
||
2065 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
2066 | ; ZF = set on error |
||
2067 | ; |
||
2068 | ;--------------------------------------------------- |
||
2069 | align 4 |
||
2070 | SOCKET_num_to_ptr: |
||
2071 | |||
2072 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_num_to_ptr: num=%u ", ecx |
||
2073 | |||
2074 | pusha |
||
2075 | mov ecx, socket_mutex |
||
2076 | call mutex_lock |
||
2077 | popa |
||
2078 | |||
2079 | mov eax, net_sockets |
||
2080 | |||
2081 | .next_socket: |
||
2082 | mov eax, [eax + SOCKET.NextPtr] |
||
2083 | or eax, eax |
||
2084 | jz .error |
||
2085 | cmp [eax + SOCKET.Number], ecx |
||
2086 | jne .next_socket |
||
2087 | |||
2088 | test eax, eax |
||
2089 | |||
2090 | pusha |
||
2091 | mov ecx, socket_mutex |
||
2092 | call mutex_unlock |
||
2093 | popa |
||
2094 | |||
2095 | DEBUGF DEBUG_NETWORK_VERBOSE, "ptr=%x\n", eax |
||
2096 | ret |
||
2097 | |||
2098 | .error: |
||
2099 | pusha |
||
2100 | mov ecx, socket_mutex |
||
2101 | call mutex_unlock |
||
2102 | popa |
||
2103 | |||
2104 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_num_to_ptr: not found\n", eax |
||
2105 | ret |
||
2106 | |||
2107 | |||
2108 | ;--------------------------------------------------- |
||
2109 | ; |
||
2110 | ; SOCKET_ptr_to_num |
||
2111 | ; |
||
2112 | ; Get socket number by its address |
||
2113 | ; |
||
2114 | ; IN: eax = socket ptr |
||
2115 | ; OUT: eax = 0 on error, socket num otherwise |
||
2116 | ; ZF = set on error |
||
2117 | ; |
||
2118 | ;--------------------------------------------------- |
||
2119 | align 4 |
||
2120 | SOCKET_ptr_to_num: |
||
2121 | |||
2122 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ptr_to_num: ptr=%x ", eax |
||
2123 | |||
2124 | call SOCKET_check |
||
2125 | jz .error |
||
2126 | |||
2127 | mov eax, [eax + SOCKET.Number] |
||
2128 | |||
2129 | DEBUGF DEBUG_NETWORK_VERBOSE, "num=%u\n", eax |
||
2130 | ret |
||
2131 | |||
2132 | .error: |
||
2133 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_ptr_to_num: not found\n", eax |
||
2134 | ret |
||
2135 | |||
2136 | |||
2137 | ;--------------------------------------------------- |
||
2138 | ; |
||
2139 | ; SOCKET_check |
||
2140 | ; |
||
2141 | ; checks if the given value is really a socket ptr |
||
2142 | ; |
||
2143 | ; IN: eax = socket ptr |
||
2144 | ; OUT: eax = 0 on error, unchanged otherwise |
||
2145 | ; ZF = set on error |
||
2146 | ; |
||
2147 | ;--------------------------------------------------- |
||
2148 | align 4 |
||
2149 | SOCKET_check: |
||
2150 | |||
2151 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check: %x\n", eax |
||
2152 | |||
2153 | push ebx |
||
2154 | mov ebx, net_sockets |
||
2155 | |||
2156 | .next_socket: |
||
2157 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2158 | or ebx, ebx |
||
2159 | jz .done |
||
2160 | cmp ebx, eax |
||
2161 | jnz .next_socket |
||
2162 | |||
2163 | .done: |
||
2164 | mov eax, ebx |
||
2165 | test eax, eax |
||
2166 | pop ebx |
||
2167 | |||
2168 | ret |
||
2169 | |||
2170 | |||
2171 | |||
2172 | ;--------------------------------------------------- |
||
2173 | ; |
||
2174 | ; SOCKET_check_owner |
||
2175 | ; |
||
2176 | ; checks if the caller application owns the socket |
||
2177 | ; |
||
2178 | ; IN: eax = socket ptr |
||
2179 | ; OUT: ZF = true/false |
||
2180 | ; |
||
2181 | ;--------------------------------------------------- |
||
2182 | align 4 |
||
2183 | SOCKET_check_owner: |
||
2184 | |||
2185 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_owner: %x\n", eax |
||
2186 | |||
2187 | push ebx |
||
2188 | mov ebx, [TASK_BASE] |
||
2189 | mov ebx, [ebx + TASKDATA.pid] |
||
2190 | cmp [eax + SOCKET.PID], ebx |
||
2191 | pop ebx |
||
2192 | |||
2193 | ret |
||
2194 | |||
2195 | |||
2196 | |||
2197 | |||
2198 | ;------------------------------------------------------ |
||
2199 | ; |
||
2200 | ; SOCKET_process_end |
||
2201 | ; |
||
2202 | ; Kernel calls this function when a certain process ends |
||
2203 | ; This function will check if the process had any open sockets |
||
2204 | ; And update them accordingly (clean up) |
||
2205 | ; |
||
2206 | ; IN: edx = pid |
||
2207 | ; OUT: / |
||
2208 | ; |
||
2209 | ;------------------------------------------------------ |
||
2210 | align 4 |
||
2211 | SOCKET_process_end: |
||
2212 | |||
4457 | Serge | 2213 | ret ; FIXME |
2214 | |||
4429 | Serge | 2215 | cmp [net_sockets + SOCKET.NextPtr], 0 ; Are there any active sockets at all? |
2216 | je .quickret ; nope, exit immediately |
||
2217 | |||
2218 | ; TODO: run the following code in another thread, to avoid deadlock |
||
2219 | |||
2220 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: %x\n", edx |
||
2221 | |||
2222 | pusha |
||
2223 | mov ecx, socket_mutex |
||
2224 | call mutex_lock |
||
2225 | popa |
||
2226 | |||
2227 | push ebx |
||
2228 | mov ebx, net_sockets |
||
2229 | |||
2230 | .next_socket: |
||
2231 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2232 | .next_socket_test: |
||
2233 | test ebx, ebx |
||
2234 | jz .done |
||
2235 | |||
2236 | cmp [ebx + SOCKET.PID], edx |
||
2237 | jne .next_socket |
||
2238 | |||
2239 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: killing socket %x\n", ebx |
||
2240 | |||
2241 | mov [ebx + SOCKET.PID], 0 |
||
2242 | mov eax, ebx |
||
2243 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2244 | |||
2245 | pusha |
||
2246 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
2247 | jne .free |
||
2248 | |||
2249 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
2250 | jne .free |
||
2251 | |||
2252 | call TCP_disconnect |
||
2253 | jmp .closed |
||
2254 | |||
2255 | .free: |
||
2256 | call SOCKET_free |
||
2257 | |||
2258 | .closed: |
||
2259 | popa |
||
2260 | jmp .next_socket_test |
||
2261 | |||
2262 | .done: |
||
2263 | pop ebx |
||
2264 | |||
2265 | pusha |
||
2266 | mov ecx, socket_mutex |
||
2267 | call mutex_unlock |
||
2268 | popa |
||
2269 | |||
2270 | .quickret: |
||
2271 | ret |
||
2272 | |||
2273 | |||
2274 | |||
2275 | |||
2276 | ;----------------------------------------------------------------- |
||
2277 | ; |
||
2278 | ; SOCKET_is_connecting |
||
2279 | ; |
||
2280 | ; IN: eax = socket ptr |
||
2281 | ; OUT: / |
||
2282 | ; |
||
2283 | ;----------------------------------------------------------------- |
||
2284 | |||
2285 | align 4 |
||
2286 | SOCKET_is_connecting: |
||
2287 | |||
2288 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connecting: %x\n", eax |
||
2289 | |||
2290 | and [eax + SOCKET.state], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
||
2291 | or [eax + SOCKET.state], SS_ISCONNECTING |
||
2292 | |||
2293 | ret |
||
2294 | |||
2295 | |||
2296 | |||
2297 | ;----------------------------------------------------------------- |
||
2298 | ; |
||
2299 | ; SOCKET_is_connected |
||
2300 | ; |
||
2301 | ; IN: eax = socket ptr |
||
2302 | ; OUT: / |
||
2303 | ; |
||
2304 | ;----------------------------------------------------------------- |
||
2305 | |||
2306 | align 4 |
||
2307 | SOCKET_is_connected: |
||
2308 | |||
2309 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connected: %x\n", eax |
||
2310 | |||
2311 | and [eax + SOCKET.state], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
||
2312 | or [eax + SOCKET.state], SS_ISCONNECTED |
||
2313 | |||
2314 | jmp SOCKET_notify |
||
2315 | |||
2316 | |||
2317 | |||
2318 | |||
2319 | ;----------------------------------------------------------------- |
||
2320 | ; |
||
2321 | ; SOCKET_is_disconnecting |
||
2322 | ; |
||
2323 | ; IN: eax = socket ptr |
||
2324 | ; OUT: / |
||
2325 | ; |
||
2326 | ;----------------------------------------------------------------- |
||
2327 | |||
2328 | align 4 |
||
2329 | SOCKET_is_disconnecting: |
||
2330 | |||
2331 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnecting: %x\n", eax |
||
2332 | |||
2333 | and [eax + SOCKET.state], not (SS_ISCONNECTING) |
||
2334 | or [eax + SOCKET.state], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
2335 | |||
2336 | jmp SOCKET_notify |
||
2337 | |||
2338 | |||
2339 | |||
2340 | ;----------------------------------------------------------------- |
||
2341 | ; |
||
2342 | ; SOCKET_is_disconnected |
||
2343 | ; |
||
2344 | ; IN: eax = socket ptr |
||
2345 | ; OUT: / |
||
2346 | ; |
||
2347 | ;----------------------------------------------------------------- |
||
2348 | |||
2349 | align 4 |
||
2350 | SOCKET_is_disconnected: |
||
2351 | |||
2352 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnected: %x\n", eax |
||
2353 | |||
2354 | and [eax + SOCKET.state], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
||
2355 | or [eax + SOCKET.state], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
2356 | |||
2357 | |||
2358 | jmp SOCKET_notify |
||
2359 | |||
2360 | |||
2361 | |||
2362 | ;----------------------------------------------------------------- |
||
2363 | ; |
||
2364 | ; SOCKET_cant_recv_more |
||
2365 | ; |
||
2366 | ; IN: eax = socket ptr |
||
2367 | ; OUT: / |
||
2368 | ; |
||
2369 | ;----------------------------------------------------------------- |
||
2370 | |||
2371 | align 4 |
||
2372 | SOCKET_cant_recv_more: |
||
2373 | |||
2374 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_recv_more: %x\n", eax |
||
2375 | |||
2376 | or [eax + SOCKET.state], SS_CANTRCVMORE |
||
2377 | |||
2378 | call SOCKET_notify |
||
2379 | |||
2380 | ret |
||
2381 | |||
2382 | |||
2383 | |||
2384 | ;----------------------------------------------------------------- |
||
2385 | ; |
||
2386 | ; SOCKET_cant_send_more |
||
2387 | ; |
||
2388 | ; IN: eax = socket ptr |
||
2389 | ; OUT: / |
||
2390 | ; |
||
2391 | ;----------------------------------------------------------------- |
||
2392 | |||
2393 | align 4 |
||
2394 | SOCKET_cant_send_more: |
||
2395 | |||
2396 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_send_more: %x\n", eax |
||
2397 | |||
2398 | or [eax + SOCKET.state], SS_CANTSENDMORE |
||
2399 | mov [eax + SOCKET.snd_proc], .notconn |
||
2400 | |||
2401 | call SOCKET_notify |
||
2402 | |||
2403 | ret |
||
2404 | |||
2405 | .notconn: |
||
2406 | mov dword[esp+20], ENOTCONN |
||
2407 | mov dword[esp+32], -1 |
||
2408 | ret |