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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 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 | |||
21 | struct SOCKET |
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22 | |||
23 | NextPtr dd ? ; pointer to next socket in list |
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24 | PrevPtr dd ? ; pointer to previous socket in list |
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25 | Number dd ? ; socket number |
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26 | |||
27 | mutex MUTEX |
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28 | |||
29 | PID dd ? ; process ID |
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30 | TID dd ? ; thread ID |
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31 | Domain dd ? ; INET/LOCAL/.. |
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32 | Type dd ? ; RAW/STREAM/DGRAP |
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33 | Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP |
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34 | errorcode dd ? |
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35 | device dd ? ; driver pointer, socket pointer if it's an LOCAL socket |
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36 | |||
37 | options dd ? |
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38 | state dd ? |
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39 | backlog dw ? ; how many incoming connections that can be queued |
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40 | |||
41 | snd_proc dd ? |
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42 | rcv_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 ? |
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96 | SND_SSTHRESH dd ? |
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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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3600 | hidnplayr | 130 | timer_flags dd ? |
3545 | hidnplayr | 131 | timer_retransmission dd ? ; rexmt |
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 | |||
136 | ; extra |
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137 | |||
138 | ts_ecr dd ? ; timestamp echo reply |
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139 | ts_val dd ? |
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140 | |||
141 | seg_next dd ? ; re-assembly queue |
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142 | |||
143 | temp_bits db ? |
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144 | rb 3 ; align |
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145 | |||
146 | ends |
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147 | |||
148 | struct UDP_SOCKET IP_SOCKET |
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149 | |||
150 | LocalPort dw ? ; network byte order |
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151 | RemotePort dw ? ; network byte order |
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152 | firstpacket db ? |
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153 | |||
154 | ends |
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155 | |||
156 | |||
157 | struct ICMP_SOCKET IP_SOCKET |
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158 | |||
159 | Identifier dw ? |
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160 | |||
161 | ends |
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162 | |||
163 | |||
164 | struct RING_BUFFER |
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165 | |||
166 | mutex MUTEX |
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167 | start_ptr dd ? ; Pointer to start of buffer |
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168 | end_ptr dd ? ; pointer to end of buffer |
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169 | read_ptr dd ? ; Read pointer |
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170 | write_ptr dd ? ; Write pointer |
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171 | size dd ? ; Number of bytes buffered |
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172 | |||
173 | ends |
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174 | |||
175 | struct STREAM_SOCKET TCP_SOCKET |
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176 | |||
177 | rcv RING_BUFFER |
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178 | snd RING_BUFFER |
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179 | |||
180 | ends |
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181 | |||
182 | struct socket_queue_entry |
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183 | |||
184 | data_ptr dd ? |
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185 | buf_ptr dd ? |
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186 | data_size dd ? |
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187 | |||
188 | ends |
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189 | |||
190 | |||
191 | SOCKETBUFFSIZE = 4096 ; in bytes |
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192 | |||
193 | SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket |
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194 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
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195 | SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
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196 | |||
197 | uglobal |
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198 | net_sockets rd 4 |
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199 | last_socket_num dd ? |
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200 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
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201 | last_TCP_port dw ? ; |
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202 | endg |
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203 | |||
204 | |||
205 | ;----------------------------------------------------------------- |
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206 | ; |
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207 | ; SOCKET_init |
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208 | ; |
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209 | ;----------------------------------------------------------------- |
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210 | macro SOCKET_init { |
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211 | |||
212 | xor eax, eax |
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213 | mov edi, net_sockets |
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214 | mov ecx, 5 |
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215 | rep stosd |
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216 | |||
217 | @@: |
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218 | pseudo_random eax |
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3600 | hidnplayr | 219 | cmp ax, EPHEMERAL_PORT_MIN |
3545 | hidnplayr | 220 | jb @r |
3600 | hidnplayr | 221 | cmp ax, EPHEMERAL_PORT_MAX |
3545 | hidnplayr | 222 | ja @r |
223 | xchg al, ah |
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224 | mov [last_UDP_port], ax |
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225 | |||
226 | @@: |
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227 | pseudo_random eax |
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3600 | hidnplayr | 228 | cmp ax, EPHEMERAL_PORT_MIN |
3545 | hidnplayr | 229 | jb @r |
3600 | hidnplayr | 230 | cmp ax, EPHEMERAL_PORT_MAX |
3545 | hidnplayr | 231 | ja @r |
232 | xchg al, ah |
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233 | mov [last_TCP_port], ax |
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234 | |||
235 | } |
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236 | |||
237 | ;----------------------------------------------------------------- |
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238 | ; |
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239 | ; Socket API (function 74) |
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240 | ; |
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241 | ;----------------------------------------------------------------- |
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242 | align 4 |
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243 | sys_socket: |
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244 | |||
245 | cmp ebx, 255 |
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246 | jz SOCKET_debug |
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247 | |||
248 | cmp ebx, .number |
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249 | ja s_error |
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250 | jmp dword [.table + 4*ebx] |
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251 | |||
252 | .table: |
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253 | dd SOCKET_open ; 0 |
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254 | dd SOCKET_close ; 1 |
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255 | dd SOCKET_bind ; 2 |
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256 | dd SOCKET_listen ; 3 |
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257 | dd SOCKET_connect ; 4 |
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258 | dd SOCKET_accept ; 5 |
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259 | dd SOCKET_send ; 6 |
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260 | dd SOCKET_receive ; 7 |
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261 | dd SOCKET_set_opt ; 8 |
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262 | dd SOCKET_get_opt ; 9 |
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263 | dd SOCKET_pair ; 10 |
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264 | .number = ($ - .table) / 4 - 1 |
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265 | |||
266 | s_error: |
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3556 | hidnplayr | 267 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET: error\n" |
3545 | hidnplayr | 268 | mov dword [esp+32], -1 |
269 | |||
270 | ret |
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271 | |||
272 | ;----------------------------------------------------------------- |
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273 | ; |
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274 | ; SOCKET_open |
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275 | ; |
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276 | ; IN: domain in ecx |
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277 | ; type in edx |
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278 | ; protocol in esi |
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279 | ; OUT: eax is socket num, -1 on error |
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280 | ; |
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281 | ;----------------------------------------------------------------- |
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282 | align 4 |
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283 | SOCKET_open: |
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284 | |||
3556 | hidnplayr | 285 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_open: domain=%u type=%u protocol=%x ", ecx, edx, esi |
3545 | hidnplayr | 286 | |
287 | push ecx edx esi |
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288 | call SOCKET_alloc |
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289 | pop esi edx ecx |
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290 | jz s_error |
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291 | |||
292 | mov [esp+32], edi ; return socketnumber |
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3556 | hidnplayr | 293 | DEBUGF DEBUG_NETWORK_VERBOSE, "socknum=%u\n", edi |
3545 | hidnplayr | 294 | |
295 | ; push edx |
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296 | ; and edx, SO_NONBLOCK |
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297 | or [eax + SOCKET.options], SO_NONBLOCK ;edx |
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298 | ; pop edx |
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299 | ; and edx, not SO_NONBLOCK |
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300 | |||
301 | mov [eax + SOCKET.Domain], ecx |
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302 | mov [eax + SOCKET.Type], edx |
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303 | mov [eax + SOCKET.Protocol], esi |
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304 | |||
305 | cmp ecx, AF_INET4 |
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306 | jne .no_inet4 |
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307 | |||
308 | cmp edx, SOCK_DGRAM |
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309 | je .udp |
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310 | |||
311 | cmp edx, SOCK_STREAM |
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312 | je .tcp |
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313 | |||
314 | cmp edx, SOCK_RAW |
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315 | je .raw |
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316 | |||
317 | .no_inet4: |
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318 | cmp ecx, AF_PPP |
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319 | jne .no_ppp |
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320 | |||
321 | cmp esi, PPP_PROTO_ETHERNET |
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322 | je .pppoe |
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323 | |||
324 | .no_ppp: |
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3556 | hidnplayr | 325 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_open: Unknown socket family/protocol\n" |
3545 | hidnplayr | 326 | ret |
327 | |||
328 | align 4 |
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329 | .raw: |
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330 | test esi, esi ; IP_PROTO_IP |
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331 | jz .ip |
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332 | |||
333 | cmp esi, IP_PROTO_ICMP |
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334 | je .icmp |
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335 | |||
336 | cmp esi, IP_PROTO_UDP |
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337 | je .udp |
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338 | |||
339 | cmp esi, IP_PROTO_TCP |
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340 | je .tcp |
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341 | |||
342 | ret |
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343 | |||
344 | align 4 |
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345 | .udp: |
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346 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
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347 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
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348 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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349 | ret |
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350 | |||
351 | align 4 |
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352 | .tcp: |
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353 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
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354 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
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355 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
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356 | |||
357 | TCP_init_socket eax |
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358 | ret |
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359 | |||
360 | |||
361 | align 4 |
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362 | .ip: |
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363 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
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364 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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365 | ret |
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366 | |||
367 | |||
368 | align 4 |
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369 | .icmp: |
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370 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
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371 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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372 | ret |
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373 | |||
374 | align 4 |
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375 | .pppoe: |
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376 | push eax |
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377 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
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378 | pop eax |
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379 | |||
380 | mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe |
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381 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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382 | ret |
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383 | |||
384 | |||
385 | ;----------------------------------------------------------------- |
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386 | ; |
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387 | ; SOCKET_bind |
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388 | ; |
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389 | ; IN: socket number in ecx |
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390 | ; pointer to sockaddr struct in edx |
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391 | ; length of that struct in esi |
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392 | ; OUT: 0 on success |
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393 | ; |
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394 | ;----------------------------------------------------------------- |
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395 | align 4 |
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396 | SOCKET_bind: |
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397 | |||
3556 | hidnplayr | 398 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 399 | |
400 | call SOCKET_num_to_ptr |
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401 | jz s_error |
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402 | |||
403 | cmp esi, 2 |
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404 | jb s_error |
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405 | |||
406 | cmp word [edx], AF_INET4 |
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407 | je .af_inet4 |
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408 | |||
409 | cmp word [edx], AF_LOCAL |
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410 | je .af_local |
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411 | |||
412 | jmp s_error |
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413 | |||
414 | .af_local: |
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415 | ; TODO: write code here |
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416 | |||
417 | mov dword [esp+32], 0 |
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418 | ret |
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419 | |||
420 | .af_inet4: |
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421 | |||
422 | cmp esi, 6 |
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423 | jb s_error |
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424 | |||
425 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
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426 | je .udp |
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427 | |||
428 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
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429 | je .tcp |
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430 | |||
431 | jmp s_error |
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432 | |||
433 | .tcp: |
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434 | .udp: |
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435 | |||
3637 | hidnplayr | 436 | mov ebx, [edx + 4] ; First, fill in the IP |
3545 | hidnplayr | 437 | test ebx, ebx ; If IP is 0, use default |
438 | jnz @f |
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3601 | hidnplayr | 439 | mov ebx, [IP_LIST + 4] ;;;;; FIXME !i!i!i |
3545 | hidnplayr | 440 | @@: |
441 | mov [eax + IP_SOCKET.LocalIP], ebx |
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442 | |||
443 | mov bx, [edx + 2] ; Now fill in the local port if it's still available |
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444 | call SOCKET_check_port |
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445 | jz s_error ; ZF is set by socket_check_port, on error |
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446 | |||
3556 | hidnplayr | 447 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: local ip=%u.%u.%u.%u\n",\ |
3545 | hidnplayr | 448 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
449 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
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450 | |||
451 | mov dword [esp+32], 0 |
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452 | ret |
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453 | |||
454 | |||
455 | |||
456 | |||
457 | ;----------------------------------------------------------------- |
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458 | ; |
||
459 | ; SOCKET_connect |
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460 | ; |
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461 | ; IN: socket number in ecx |
||
462 | ; pointer to sockaddr struct in edx |
||
463 | ; length of that struct in esi |
||
464 | ; OUT: 0 on success |
||
465 | ; |
||
466 | ;----------------------------------------------------------------- |
||
467 | align 4 |
||
468 | SOCKET_connect: |
||
469 | |||
3556 | hidnplayr | 470 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 471 | |
472 | call SOCKET_num_to_ptr |
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473 | jz s_error |
||
474 | |||
475 | cmp esi, 8 |
||
476 | jb s_error |
||
477 | |||
478 | cmp word [edx], AF_INET4 |
||
479 | je .af_inet4 |
||
480 | |||
481 | jmp s_error |
||
482 | |||
483 | .af_inet4: |
||
484 | cmp [eax + IP_SOCKET.LocalIP], 0 |
||
485 | jne @f |
||
3601 | hidnplayr | 486 | push [IP_LIST + 4] ; FIXME !i!i!i! |
3545 | hidnplayr | 487 | pop [eax + IP_SOCKET.LocalIP] |
488 | @@: |
||
489 | |||
490 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
491 | je .udp |
||
492 | |||
493 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
494 | je .tcp |
||
495 | |||
496 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
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497 | je .ip |
||
498 | |||
499 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
||
500 | je .ip |
||
501 | |||
502 | jmp s_error |
||
503 | |||
504 | align 4 |
||
505 | .udp: |
||
506 | pusha |
||
507 | lea ecx, [eax + SOCKET.mutex] |
||
508 | call mutex_lock |
||
509 | popa |
||
510 | |||
511 | pushw [edx + 2] |
||
512 | pop [eax + UDP_SOCKET.RemotePort] |
||
513 | |||
514 | pushd [edx + 4] |
||
515 | pop [eax + IP_SOCKET.RemoteIP] |
||
516 | |||
517 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
||
518 | jne @f |
||
519 | call SOCKET_find_port |
||
520 | @@: |
||
521 | |||
522 | mov [eax + UDP_SOCKET.firstpacket], 0 |
||
523 | |||
524 | push eax |
||
525 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
526 | pop eax |
||
527 | |||
528 | lea ecx, [eax + SOCKET.mutex] |
||
529 | call mutex_unlock |
||
530 | |||
531 | mov dword [esp+32], 0 |
||
532 | ret |
||
533 | |||
534 | align 4 |
||
535 | .tcp: |
||
536 | pusha |
||
537 | lea ecx, [eax + SOCKET.mutex] |
||
538 | call mutex_lock |
||
539 | popa |
||
540 | |||
541 | pushw [edx + 2] |
||
542 | pop [eax + TCP_SOCKET.RemotePort] |
||
543 | |||
544 | pushd [edx + 4] |
||
545 | pop [eax + IP_SOCKET.RemoteIP] |
||
546 | |||
547 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
||
548 | jne @f |
||
549 | call SOCKET_find_port |
||
550 | @@: |
||
551 | |||
552 | mov [eax + TCP_SOCKET.timer_persist], 0 |
||
553 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
||
554 | |||
555 | push [TCP_sequence_num] |
||
556 | add [TCP_sequence_num], 6400 |
||
557 | pop [eax + TCP_SOCKET.ISS] |
||
558 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
||
559 | |||
560 | |||
561 | TCP_sendseqinit eax |
||
562 | |||
563 | ; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
||
564 | |||
565 | mov ebx, eax |
||
566 | |||
567 | lea eax, [ebx + STREAM_SOCKET.snd] |
||
568 | call SOCKET_ring_create |
||
569 | |||
570 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
571 | call SOCKET_ring_create |
||
572 | |||
573 | pusha |
||
574 | lea ecx, [ebx + SOCKET.mutex] |
||
575 | call mutex_unlock |
||
576 | popa |
||
577 | |||
578 | mov eax, ebx |
||
579 | call TCP_output |
||
580 | |||
581 | ;;; TODO: wait for successfull connection if blocking socket |
||
582 | |||
583 | mov dword [esp+32], 0 |
||
584 | ret |
||
585 | |||
586 | align 4 |
||
587 | .ip: |
||
588 | pusha |
||
589 | lea ecx, [eax + SOCKET.mutex] |
||
590 | call mutex_lock |
||
591 | popa |
||
592 | |||
593 | pushd [edx + 4] |
||
594 | pop [eax + IP_SOCKET.RemoteIP] |
||
595 | |||
596 | push eax |
||
597 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
598 | pop eax |
||
599 | |||
600 | lea ecx, [eax + SOCKET.mutex] |
||
601 | call mutex_unlock |
||
602 | |||
603 | mov dword [esp+32], 0 |
||
604 | ret |
||
605 | |||
606 | |||
607 | ;----------------------------------------------------------------- |
||
608 | ; |
||
609 | ; SOCKET_listen |
||
610 | ; |
||
611 | ; IN: socket number in ecx |
||
612 | ; backlog in edx |
||
613 | ; OUT: eax is socket num, -1 on error |
||
614 | ; |
||
615 | ;----------------------------------------------------------------- |
||
616 | align 4 |
||
617 | SOCKET_listen: |
||
618 | |||
3556 | hidnplayr | 619 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx |
3545 | hidnplayr | 620 | |
621 | call SOCKET_num_to_ptr |
||
622 | jz s_error |
||
623 | |||
624 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
625 | jne s_error |
||
626 | |||
627 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
628 | jne s_error |
||
629 | |||
630 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
||
631 | je s_error |
||
632 | |||
633 | cmp [eax + IP_SOCKET.LocalIP], 0 |
||
634 | jne @f |
||
3601 | hidnplayr | 635 | push [IP_LIST + 4] ;;; fixme!!!! |
3545 | hidnplayr | 636 | pop [eax + IP_SOCKET.LocalIP] |
637 | @@: |
||
638 | |||
639 | cmp edx, MAX_backlog |
||
640 | jbe @f |
||
641 | mov edx, MAX_backlog |
||
642 | @@: |
||
643 | |||
644 | mov [eax + SOCKET.backlog], dx |
||
645 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
646 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
647 | mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer |
||
648 | |||
649 | push eax |
||
650 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
651 | pop eax |
||
652 | |||
653 | mov dword [esp+32], 0 |
||
654 | |||
655 | ret |
||
656 | |||
657 | |||
658 | ;----------------------------------------------------------------- |
||
659 | ; |
||
660 | ; SOCKET_accept |
||
661 | ; |
||
662 | ; IN: socket number in ecx |
||
663 | ; addr in edx |
||
664 | ; addrlen in esi |
||
665 | ; OUT: eax is socket num, -1 on error |
||
666 | ; |
||
667 | ;----------------------------------------------------------------- |
||
668 | align 4 |
||
669 | SOCKET_accept: |
||
670 | |||
3556 | hidnplayr | 671 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 672 | |
673 | call SOCKET_num_to_ptr |
||
674 | jz s_error |
||
675 | |||
676 | test [eax + SOCKET.options], SO_ACCEPTCON |
||
677 | jz s_error |
||
678 | |||
679 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
680 | jne s_error |
||
681 | |||
682 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
683 | jne s_error |
||
684 | |||
685 | .loop: |
||
686 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block |
||
687 | |||
688 | ; Ok, we got a socket ptr |
||
689 | mov eax, [esi] |
||
690 | |||
691 | ; Change thread ID to that of the current thread |
||
692 | mov ebx, [TASK_BASE] |
||
693 | mov ebx, [ebx + TASKDATA.pid] |
||
694 | mov [eax + SOCKET.TID], ebx |
||
695 | |||
696 | ; Convert it to a socket number |
||
697 | call SOCKET_ptr_to_num |
||
698 | jz s_error |
||
699 | ; and return it to caller |
||
700 | mov [esp+32], eax |
||
701 | ret |
||
702 | |||
703 | .block: |
||
704 | test [eax + SOCKET.options], SO_NONBLOCK |
||
705 | jnz s_error |
||
706 | |||
707 | call SOCKET_block |
||
708 | jmp .loop |
||
709 | |||
710 | ;----------------------------------------------------------------- |
||
711 | ; |
||
712 | ; SOCKET_close |
||
713 | ; |
||
714 | ; IN: socket number in ecx |
||
715 | ; OUT: eax is socket num, -1 on error |
||
716 | ; |
||
717 | ;----------------------------------------------------------------- |
||
718 | align 4 |
||
719 | SOCKET_close: |
||
720 | |||
3556 | hidnplayr | 721 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_close: socknum=%u\n", ecx |
3545 | hidnplayr | 722 | |
723 | call SOCKET_num_to_ptr |
||
724 | jz s_error |
||
725 | |||
726 | mov dword [esp+32], 0 ; The socket exists, so we will succeed in closing it. |
||
727 | |||
728 | .socket: |
||
729 | or [eax + SOCKET.options], SO_NONBLOCK ; Mark the socket as non blocking, we dont want it to block any longer! |
||
730 | |||
731 | test [eax + SOCKET.state], SS_BLOCKED ; Is the socket still in blocked state? |
||
732 | jz @f |
||
733 | call SOCKET_notify.unblock ; Unblock it. |
||
734 | @@: |
||
735 | |||
736 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
737 | jne .free |
||
738 | |||
739 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
740 | je .tcp |
||
741 | |||
742 | .free: |
||
743 | call SOCKET_free |
||
744 | ret |
||
745 | |||
746 | .tcp: |
||
747 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
||
748 | jb .free |
||
749 | |||
750 | call TCP_usrclosed |
||
751 | call TCP_output ;;;; Fixme: is this nescessary?? |
||
3646 | hidnplayr | 752 | call SOCKET_free |
3545 | hidnplayr | 753 | |
754 | ret |
||
755 | |||
756 | |||
757 | ;----------------------------------------------------------------- |
||
758 | ; |
||
759 | ; SOCKET_receive |
||
760 | ; |
||
761 | ; IN: socket number in ecx |
||
762 | ; addr to buffer in edx |
||
763 | ; length of buffer in esi |
||
764 | ; flags in edi |
||
765 | ; OUT: eax is number of bytes copied, -1 on error |
||
766 | ; |
||
767 | ;----------------------------------------------------------------- |
||
768 | align 4 |
||
769 | SOCKET_receive: |
||
770 | |||
3556 | hidnplayr | 771 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi |
3545 | hidnplayr | 772 | |
773 | call SOCKET_num_to_ptr |
||
774 | jz s_error |
||
775 | |||
3565 | hidnplayr | 776 | call [eax + SOCKET.rcv_proc] |
3545 | hidnplayr | 777 | |
3565 | hidnplayr | 778 | mov [esp+32], eax |
779 | ret |
||
3545 | hidnplayr | 780 | |
3565 | hidnplayr | 781 | |
3545 | hidnplayr | 782 | align 4 |
783 | SOCKET_receive_dgram: |
||
784 | |||
3556 | hidnplayr | 785 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: DGRAM\n" |
3545 | hidnplayr | 786 | |
787 | mov ebx, esi |
||
788 | mov edi, edx ; addr to buffer |
||
789 | |||
790 | .loop: |
||
791 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .block ; destroys esi and ecx |
||
792 | |||
793 | mov ecx, [esi + socket_queue_entry.data_size] |
||
3556 | hidnplayr | 794 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: %u bytes data\n", ecx |
3545 | hidnplayr | 795 | |
796 | cmp ecx, ebx |
||
797 | ja .too_small |
||
798 | |||
3565 | hidnplayr | 799 | push ecx |
3545 | hidnplayr | 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] |
||
3556 | hidnplayr | 802 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi |
3545 | hidnplayr | 803 | |
804 | ; copy the data |
||
805 | shr ecx, 1 |
||
806 | jnc .nb |
||
807 | movsb |
||
808 | .nb: |
||
809 | shr ecx, 1 |
||
810 | jnc .nw |
||
811 | movsw |
||
812 | .nw: |
||
813 | test ecx, ecx |
||
814 | jz .nd |
||
815 | rep movsd |
||
816 | .nd: |
||
817 | |||
818 | call kernel_free ; remove the packet |
||
3565 | hidnplayr | 819 | pop eax |
820 | |||
3545 | hidnplayr | 821 | ret |
822 | |||
823 | .too_small: |
||
824 | |||
3556 | hidnplayr | 825 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Buffer too small\n" |
3565 | hidnplayr | 826 | .fail: |
827 | mov eax, -1 |
||
828 | ret |
||
3545 | hidnplayr | 829 | |
830 | .block: |
||
831 | test [eax + SOCKET.options], SO_NONBLOCK |
||
3565 | hidnplayr | 832 | jnz .fail |
3545 | hidnplayr | 833 | |
834 | call SOCKET_block |
||
835 | jmp .loop |
||
836 | |||
837 | |||
838 | align 4 |
||
839 | SOCKET_receive_local: |
||
840 | |||
841 | ; does this socket have a PID yet? |
||
842 | cmp [eax + SOCKET.PID], 0 |
||
843 | jne @f |
||
844 | |||
845 | ; Change PID to that of current process |
||
846 | mov ebx, [TASK_BASE] |
||
847 | mov ebx, [ebx + TASKDATA.pid] |
||
848 | mov [eax + SOCKET.PID], ebx |
||
849 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
850 | @@: |
||
851 | |||
852 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
||
853 | |||
854 | align 4 |
||
855 | SOCKET_receive_stream: |
||
856 | |||
3556 | hidnplayr | 857 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: STREAM\n" |
3545 | hidnplayr | 858 | |
859 | mov ebx, edi |
||
860 | mov ecx, esi |
||
861 | mov edi, edx |
||
862 | xor edx, edx |
||
863 | |||
864 | test ebx, MSG_DONTWAIT |
||
865 | jnz .dontwait |
||
866 | .loop: |
||
867 | cmp [eax + STREAM_SOCKET.rcv + RING_BUFFER.size], 0 |
||
868 | je .block |
||
869 | .dontwait: |
||
870 | test ebx, MSG_PEEK |
||
871 | jnz .peek |
||
872 | |||
873 | add eax, STREAM_SOCKET.rcv |
||
874 | call SOCKET_ring_read |
||
875 | call SOCKET_ring_free |
||
876 | |||
3565 | hidnplayr | 877 | mov eax, ecx ; return number of bytes copied |
3545 | hidnplayr | 878 | ret |
879 | |||
880 | .peek: |
||
3565 | hidnplayr | 881 | mov eax, [eax + STREAM_SOCKET.rcv + RING_BUFFER.size] |
3545 | hidnplayr | 882 | ret |
883 | |||
884 | .block: |
||
885 | test [eax + SOCKET.options], SO_NONBLOCK |
||
886 | jnz .return0 |
||
887 | |||
888 | call SOCKET_block |
||
889 | jmp .loop |
||
890 | |||
891 | .return0: |
||
3565 | hidnplayr | 892 | test [eax + SOCKET.options], SS_CANTRCVMORE |
893 | jz .ok |
||
894 | |||
895 | xor eax, eax |
||
896 | dec eax |
||
3545 | hidnplayr | 897 | ret |
898 | |||
3565 | hidnplayr | 899 | .ok: |
900 | xor eax, eax |
||
901 | ret |
||
3545 | hidnplayr | 902 | |
3565 | hidnplayr | 903 | |
3545 | hidnplayr | 904 | ;----------------------------------------------------------------- |
905 | ; |
||
906 | ; SOCKET_send |
||
907 | ; |
||
908 | ; |
||
909 | ; IN: socket number in ecx |
||
910 | ; pointer to data in edx |
||
911 | ; datalength in esi |
||
912 | ; flags in edi |
||
913 | ; OUT: -1 on error |
||
914 | ; |
||
915 | ;----------------------------------------------------------------- |
||
916 | align 4 |
||
917 | SOCKET_send: |
||
918 | |||
3556 | hidnplayr | 919 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi |
3545 | hidnplayr | 920 | |
921 | call SOCKET_num_to_ptr |
||
922 | jz s_error |
||
923 | |||
924 | mov ecx, esi |
||
925 | mov esi, edx |
||
926 | |||
927 | jmp [eax + SOCKET.snd_proc] |
||
928 | |||
929 | |||
930 | align 4 |
||
931 | SOCKET_send_udp: |
||
932 | |||
3556 | hidnplayr | 933 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: UDP\n" |
3545 | hidnplayr | 934 | |
935 | mov [esp+32], ecx |
||
936 | call UDP_output |
||
937 | cmp eax, -1 |
||
938 | je s_error |
||
939 | ret |
||
940 | |||
941 | |||
942 | align 4 |
||
943 | SOCKET_send_tcp: |
||
944 | |||
3556 | hidnplayr | 945 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: TCP\n" |
3545 | hidnplayr | 946 | |
947 | push eax |
||
948 | add eax, STREAM_SOCKET.snd |
||
949 | call SOCKET_ring_write |
||
950 | pop eax |
||
951 | |||
952 | mov [esp+32], ecx |
||
953 | |||
954 | call TCP_output |
||
955 | ret |
||
956 | |||
957 | |||
958 | align 4 |
||
959 | SOCKET_send_ip: |
||
960 | |||
3556 | hidnplayr | 961 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: IPv4\n" |
3545 | hidnplayr | 962 | |
963 | mov [esp+32], ecx |
||
964 | call IPv4_output_raw |
||
965 | cmp eax, -1 |
||
966 | je s_error |
||
967 | ret |
||
968 | |||
969 | |||
970 | align 4 |
||
971 | SOCKET_send_icmp: |
||
972 | |||
3556 | hidnplayr | 973 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: ICMP\n" |
3545 | hidnplayr | 974 | |
975 | mov [esp+32], ecx |
||
976 | call ICMP_output_raw |
||
977 | cmp eax, -1 |
||
978 | je s_error |
||
979 | ret |
||
980 | |||
981 | |||
982 | align 4 |
||
983 | SOCKET_send_pppoe: |
||
984 | |||
3556 | hidnplayr | 985 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: PPPoE\n" |
3545 | hidnplayr | 986 | |
987 | mov [esp+32], ecx |
||
988 | mov ebx, [eax + SOCKET.device] |
||
989 | |||
990 | call PPPoE_discovery_output |
||
991 | cmp eax, -1 |
||
992 | je s_error |
||
993 | ret |
||
994 | |||
995 | |||
996 | |||
997 | align 4 |
||
998 | SOCKET_send_local: |
||
999 | |||
1000 | ; does this socket have a PID yet? |
||
1001 | cmp [eax + SOCKET.PID], 0 |
||
1002 | jne @f |
||
1003 | |||
1004 | ; Change PID to that of current process |
||
1005 | mov ebx, [TASK_BASE] |
||
1006 | mov ebx, [ebx + TASKDATA.pid] |
||
1007 | mov [eax + SOCKET.PID], ebx |
||
1008 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1009 | @@: |
||
1010 | mov [eax + SOCKET.snd_proc], SOCKET_send_local_ |
||
1011 | |||
1012 | align 4 |
||
1013 | SOCKET_send_local_: |
||
1014 | |||
3556 | hidnplayr | 1015 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: LOCAL\n" |
3545 | hidnplayr | 1016 | |
1017 | ; get the other side's socket and check if it still exists |
||
1018 | mov eax, [eax + SOCKET.device] |
||
1019 | call SOCKET_check |
||
1020 | jz s_error |
||
1021 | |||
1022 | ; allright, shove in the data! |
||
1023 | push eax |
||
1024 | add eax, STREAM_SOCKET.rcv |
||
1025 | call SOCKET_ring_write |
||
1026 | pop eax |
||
1027 | |||
1028 | ; return the number of written bytes (or errorcode) to application |
||
1029 | mov [esp+32], ecx |
||
1030 | |||
1031 | ; and notify the other end |
||
1032 | call SOCKET_notify |
||
1033 | |||
1034 | ret |
||
1035 | |||
1036 | |||
1037 | ;----------------------------------------------------------------- |
||
1038 | ; |
||
1039 | ; SOCKET_get_options |
||
1040 | ; |
||
1041 | ; IN: ecx = socket number |
||
1042 | ; edx = pointer to the options: |
||
1043 | ; dd level, optname, optval, optlen |
||
1044 | ; OUT: -1 on error |
||
1045 | ; |
||
1046 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
1047 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1048 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
||
1049 | ; |
||
1050 | ;----------------------------------------------------------------- |
||
1051 | align 4 |
||
1052 | SOCKET_get_opt: |
||
1053 | |||
3556 | hidnplayr | 1054 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_get_opt\n" |
3545 | hidnplayr | 1055 | |
1056 | call SOCKET_num_to_ptr |
||
1057 | jz s_error |
||
1058 | |||
1059 | cmp dword [edx], IP_PROTO_TCP |
||
1060 | jne s_error |
||
1061 | cmp dword [edx+4], -2 |
||
1062 | je @f |
||
1063 | cmp dword [edx+4], -3 |
||
1064 | jne s_error |
||
1065 | @@: |
||
1066 | ; mov eax, [edx+12] |
||
1067 | ; test eax, eax |
||
1068 | ; jz .fail |
||
1069 | ; cmp dword [eax], 4 |
||
1070 | ; mov dword [eax], 4 |
||
1071 | ; jb .fail |
||
1072 | ; stdcall net_socket_num_to_addr, ecx |
||
1073 | ; test eax, eax |
||
1074 | ; jz .fail |
||
1075 | ; ; todo: check that eax is really TCP socket |
||
1076 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
1077 | ; cmp dword [edx+4], -2 |
||
1078 | ; jz @f |
||
1079 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1080 | @@: |
||
1081 | mov eax, [edx+8] |
||
1082 | test eax, eax |
||
1083 | jz @f |
||
1084 | mov [eax], ecx |
||
1085 | @@: |
||
1086 | mov dword [esp+32], 0 |
||
1087 | ret |
||
1088 | |||
1089 | |||
1090 | |||
1091 | ;----------------------------------------------------------------- |
||
1092 | ; |
||
1093 | ; SOCKET_set_options |
||
1094 | ; |
||
1095 | ; IN: ecx = socket number |
||
1096 | ; edx = pointer to the options: |
||
1097 | ; dd level, optname, optlen, optval |
||
1098 | ; OUT: -1 on error |
||
1099 | ; |
||
1100 | ;----------------------------------------------------------------- |
||
1101 | align 4 |
||
1102 | SOCKET_set_opt: |
||
1103 | |||
3556 | hidnplayr | 1104 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt\n" |
3545 | hidnplayr | 1105 | |
1106 | call SOCKET_num_to_ptr |
||
1107 | jz s_error |
||
1108 | |||
1109 | cmp dword [edx], SOL_SOCKET |
||
1110 | jne s_error |
||
1111 | |||
1112 | cmp dword [edx+4], SO_BINDTODEVICE |
||
1113 | je .bind |
||
1114 | |||
1115 | cmp dword [edx+4], SO_BLOCK |
||
1116 | je .block |
||
1117 | |||
1118 | jmp s_error |
||
1119 | |||
1120 | .bind: |
||
1121 | cmp dword [edx+8], 0 |
||
1122 | je .unbind |
||
1123 | |||
1124 | movzx edx, byte [edx + 9] |
||
3600 | hidnplayr | 1125 | cmp edx, NET_DEVICES_MAX |
3545 | hidnplayr | 1126 | ja s_error |
1127 | |||
1128 | mov edx, [NET_DRV_LIST + 4*edx] |
||
1129 | test edx, edx |
||
1130 | jz s_error |
||
1131 | mov [eax + SOCKET.device], edx |
||
1132 | |||
3556 | hidnplayr | 1133 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx |
3545 | hidnplayr | 1134 | |
1135 | mov dword [esp+32], 0 ; success! |
||
1136 | ret |
||
1137 | |||
1138 | .unbind: |
||
1139 | mov [eax + SOCKET.device], 0 |
||
1140 | |||
1141 | mov dword [esp+32], 0 ; success! |
||
1142 | ret |
||
1143 | |||
1144 | .block: |
||
1145 | cmp dword [edx+8], 0 |
||
1146 | je .unblock |
||
1147 | |||
1148 | and [eax + SOCKET.options], not SO_NONBLOCK |
||
1149 | |||
1150 | mov dword [esp+32], 0 ; success! |
||
1151 | ret |
||
1152 | |||
1153 | .unblock: |
||
1154 | or [eax + SOCKET.options], SO_NONBLOCK |
||
1155 | |||
1156 | mov dword [esp+32], 0 ; success! |
||
1157 | ret |
||
1158 | |||
1159 | |||
1160 | |||
1161 | ;----------------------------------------------------------------- |
||
1162 | ; |
||
1163 | ; SOCKET_pair |
||
1164 | ; |
||
1165 | ; Allocates a pair of linked LOCAL domain sockets |
||
1166 | ; |
||
1167 | ; IN: / |
||
1168 | ; OUT: eax is socket1 num, -1 on error |
||
1169 | ; ebx is socket2 num |
||
1170 | ; |
||
1171 | ;----------------------------------------------------------------- |
||
1172 | align 4 |
||
1173 | SOCKET_pair: |
||
1174 | |||
3556 | hidnplayr | 1175 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_pair\n" |
3545 | hidnplayr | 1176 | |
1177 | call SOCKET_alloc |
||
1178 | jz s_error |
||
1179 | mov [esp+32], edi ; application's eax |
||
1180 | |||
1181 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1182 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1183 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1184 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1185 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1186 | mov [eax + SOCKET.PID], 0 |
||
1187 | mov ebx, eax |
||
1188 | |||
1189 | call SOCKET_alloc |
||
1190 | jz .error |
||
1191 | mov [esp+24], edi ; application's ebx |
||
1192 | |||
1193 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1194 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1195 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1196 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1197 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1198 | mov [eax + SOCKET.PID], 0 |
||
1199 | |||
1200 | ; Link the two sockets to eachother |
||
1201 | mov [eax + SOCKET.device], ebx |
||
1202 | mov [ebx + SOCKET.device], eax |
||
1203 | |||
1204 | lea eax, [eax + STREAM_SOCKET.rcv] |
||
1205 | call SOCKET_ring_create |
||
1206 | |||
1207 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
1208 | call SOCKET_ring_create |
||
1209 | pop eax |
||
1210 | |||
1211 | ret |
||
1212 | |||
1213 | .error: |
||
1214 | mov eax, ebx |
||
1215 | call SOCKET_free |
||
1216 | jmp s_error |
||
1217 | |||
1218 | |||
1219 | |||
1220 | ;----------------------------------------------------------------- |
||
1221 | ; |
||
1222 | ; SOCKET_debug |
||
1223 | ; |
||
1224 | ; Copies socket variables to application buffer |
||
1225 | ; |
||
1226 | ; IN: ecx = socket number |
||
1227 | ; edx = pointer to buffer |
||
1228 | ; |
||
1229 | ; OUT: -1 on error |
||
1230 | ;----------------------------------------------------------------- |
||
1231 | align 4 |
||
1232 | SOCKET_debug: |
||
1233 | |||
3556 | hidnplayr | 1234 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_debug\n" |
3545 | hidnplayr | 1235 | |
1236 | mov edi, edx |
||
1237 | |||
1238 | test ecx, ecx |
||
1239 | jz .returnall |
||
1240 | |||
1241 | call SOCKET_num_to_ptr |
||
1242 | jz s_error |
||
1243 | |||
1244 | mov esi, eax |
||
1245 | mov ecx, SOCKETBUFFSIZE/4 |
||
1246 | rep movsd |
||
1247 | |||
1248 | mov dword [esp+32], 0 |
||
1249 | ret |
||
1250 | |||
1251 | .returnall: |
||
1252 | mov ebx, net_sockets |
||
1253 | .next_socket: |
||
1254 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1255 | test ebx, ebx |
||
1256 | jz .done |
||
1257 | mov eax, [ebx + SOCKET.Number] |
||
1258 | stosd |
||
1259 | jmp .next_socket |
||
1260 | .done: |
||
1261 | xor eax, eax |
||
1262 | stosd |
||
1263 | |||
1264 | mov dword [esp+32], 0 |
||
1265 | ret |
||
1266 | |||
1267 | |||
1268 | ;----------------------------------------------------------------- |
||
1269 | ; |
||
1270 | ; SOCKET_find_port |
||
1271 | ; |
||
1272 | ; Fills in the local port number for TCP and UDP sockets |
||
1273 | ; This procedure always works because the number of sockets is |
||
1274 | ; limited to a smaller number then the number of possible ports |
||
1275 | ; |
||
1276 | ; IN: eax = socket pointer |
||
1277 | ; OUT: / |
||
1278 | ; |
||
1279 | ;----------------------------------------------------------------- |
||
1280 | align 4 |
||
1281 | SOCKET_find_port: |
||
1282 | |||
3556 | hidnplayr | 1283 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_find_port\n" |
3545 | hidnplayr | 1284 | |
1285 | push ebx esi ecx |
||
1286 | |||
1287 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
1288 | je .udp |
||
1289 | |||
1290 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1291 | je .tcp |
||
1292 | |||
1293 | pop ecx esi ebx |
||
1294 | ret |
||
1295 | |||
1296 | .udp: |
||
1297 | mov bx, [last_UDP_port] |
||
1298 | call .findit |
||
1299 | mov [last_UDP_port], bx |
||
1300 | |||
1301 | pop ecx esi ebx |
||
1302 | ret |
||
1303 | |||
1304 | .tcp: |
||
1305 | mov bx, [last_TCP_port] |
||
1306 | call .findit |
||
1307 | mov [last_TCP_port], bx |
||
1308 | |||
1309 | pop ecx esi ebx |
||
1310 | ret |
||
1311 | |||
1312 | |||
1313 | .restart: |
||
1314 | mov bx, MIN_EPHEMERAL_PORT_N |
||
1315 | .findit: |
||
1316 | cmp bx, MAX_EPHEMERAL_PORT_N |
||
1317 | je .restart |
||
1318 | |||
1319 | add bh, 1 |
||
1320 | adc bl, 0 |
||
1321 | |||
1322 | call SOCKET_check_port |
||
1323 | jz .findit |
||
1324 | ret |
||
1325 | |||
1326 | |||
1327 | |||
1328 | ;----------------------------------------------------------------- |
||
1329 | ; |
||
1330 | ; SOCKET_check_port (to be used with AF_INET only!) |
||
1331 | ; |
||
1332 | ; Checks if a local port number is unused |
||
1333 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1334 | ; |
||
1335 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
||
1336 | ; bx = proposed socket number (network byte order) |
||
1337 | ; |
||
1338 | ; OUT: ZF = set on error |
||
1339 | ; |
||
1340 | ;----------------------------------------------------------------- |
||
1341 | align 4 |
||
1342 | SOCKET_check_port: |
||
1343 | |||
3556 | hidnplayr | 1344 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_port: " |
3545 | hidnplayr | 1345 | |
1346 | mov ecx, [eax + SOCKET.Protocol] |
||
1347 | mov edx, [eax + IP_SOCKET.LocalIP] |
||
1348 | mov esi, net_sockets |
||
1349 | |||
1350 | .next_socket: |
||
1351 | mov esi, [esi + SOCKET.NextPtr] |
||
1352 | or esi, esi |
||
1353 | jz .port_ok |
||
1354 | |||
1355 | cmp [esi + SOCKET.Protocol], ecx |
||
1356 | jne .next_socket |
||
1357 | |||
1358 | cmp [esi + IP_SOCKET.LocalIP], edx |
||
1359 | jne .next_socket |
||
1360 | |||
1361 | cmp [esi + UDP_SOCKET.LocalPort], bx |
||
1362 | jne .next_socket |
||
1363 | |||
3556 | hidnplayr | 1364 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x already in use\n", bx ; FIXME: find a way to print big endian values with debugf |
3545 | hidnplayr | 1365 | ret |
1366 | |||
1367 | .port_ok: |
||
3556 | hidnplayr | 1368 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf |
3545 | hidnplayr | 1369 | mov [eax + UDP_SOCKET.LocalPort], bx |
1370 | or bx, bx ; clear the zero-flag |
||
1371 | ret |
||
1372 | |||
1373 | |||
1374 | |||
1375 | ;----------------------------------------------------------------- |
||
1376 | ; |
||
1377 | ; SOCKET_input |
||
1378 | ; |
||
1379 | ; Updates a (stateless) socket with received data |
||
1380 | ; |
||
1381 | ; Note: the mutex should already be set ! |
||
1382 | ; |
||
1383 | ; IN: eax = socket ptr |
||
1384 | ; ecx = data size |
||
1385 | ; esi = ptr to data |
||
1386 | ; [esp] = ptr to buf |
||
1387 | ; [esp + 4] = buf size |
||
1388 | ; |
||
1389 | ; OUT: / |
||
1390 | ; |
||
1391 | ;----------------------------------------------------------------- |
||
1392 | align 4 |
||
1393 | SOCKET_input: |
||
1394 | |||
3556 | hidnplayr | 1395 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
3545 | hidnplayr | 1396 | |
1397 | mov [esp+4], ecx |
||
1398 | push esi |
||
1399 | mov esi, esp |
||
1400 | |||
1401 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
||
1402 | |||
3556 | hidnplayr | 1403 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: success\n" |
3545 | hidnplayr | 1404 | add esp, sizeof.socket_queue_entry |
1405 | |||
1406 | pusha |
||
1407 | lea ecx, [eax + SOCKET.mutex] |
||
1408 | call mutex_unlock |
||
1409 | popa |
||
1410 | |||
1411 | jmp SOCKET_notify |
||
1412 | |||
1413 | .full: |
||
3556 | hidnplayr | 1414 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket %x is full!\n", eax |
3545 | hidnplayr | 1415 | |
1416 | pusha |
||
1417 | lea ecx, [eax + SOCKET.mutex] |
||
1418 | call mutex_unlock |
||
1419 | popa |
||
1420 | |||
1421 | call kernel_free |
||
1422 | add esp, 8 |
||
1423 | |||
1424 | ret |
||
1425 | |||
1426 | |||
1427 | ;-------------------------- |
||
1428 | ; |
||
1429 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1430 | ; |
||
1431 | align 4 |
||
1432 | SOCKET_ring_create: |
||
1433 | |||
1434 | push esi |
||
1435 | mov esi, eax |
||
1436 | |||
1437 | push edx |
||
1438 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1439 | pop edx |
||
1440 | |||
3556 | hidnplayr | 1441 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_created: %x\n", eax |
3545 | hidnplayr | 1442 | |
1443 | pusha |
||
1444 | lea ecx, [esi + RING_BUFFER.mutex] |
||
1445 | call mutex_init |
||
1446 | popa |
||
1447 | |||
1448 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1449 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1450 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1451 | mov [esi + RING_BUFFER.size], 0 |
||
1452 | add eax, SOCKET_MAXDATA |
||
1453 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1454 | mov eax, esi |
||
1455 | pop esi |
||
1456 | |||
1457 | ret |
||
1458 | |||
1459 | ;----------------------------------------------------------------- |
||
1460 | ; |
||
1461 | ; SOCKET_ring_write |
||
1462 | ; |
||
1463 | ; Adds data to a stream socket, and updates write pointer and size |
||
1464 | ; |
||
1465 | ; IN: eax = ptr to ring struct |
||
1466 | ; ecx = data size |
||
1467 | ; esi = ptr to data |
||
1468 | ; |
||
1469 | ; OUT: ecx = number of bytes stored |
||
1470 | ; |
||
1471 | ;----------------------------------------------------------------- |
||
1472 | align 4 |
||
1473 | SOCKET_ring_write: |
||
1474 | |||
3556 | hidnplayr | 1475 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
3545 | hidnplayr | 1476 | |
1477 | ; lock mutex |
||
1478 | pusha |
||
1479 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1480 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1481 | popa |
||
1482 | |||
1483 | ; calculate available size |
||
1484 | mov edi, SOCKET_MAXDATA |
||
1485 | sub edi, [eax + RING_BUFFER.size] ; available buffer size in edi |
||
1486 | cmp ecx, edi |
||
1487 | jbe .copy |
||
1488 | mov ecx, edi |
||
1489 | .copy: |
||
1490 | mov edi, [eax + RING_BUFFER.write_ptr] |
||
3556 | hidnplayr | 1491 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
3545 | hidnplayr | 1492 | |
1493 | ; update write ptr |
||
1494 | push edi |
||
1495 | add edi, ecx |
||
1496 | cmp edi, [eax + RING_BUFFER.end_ptr] |
||
1497 | jb @f |
||
1498 | sub edi, SOCKET_MAXDATA ; WRAP |
||
1499 | @@: |
||
1500 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1501 | pop edi |
||
1502 | |||
1503 | ; update size |
||
1504 | add [eax + RING_BUFFER.size], ecx |
||
1505 | |||
1506 | ; copy the data |
||
1507 | push ecx |
||
1508 | shr ecx, 1 |
||
1509 | jnc .nb |
||
1510 | movsb |
||
1511 | .nb: |
||
1512 | shr ecx, 1 |
||
1513 | jnc .nw |
||
1514 | movsw |
||
1515 | .nw: |
||
1516 | test ecx, ecx |
||
1517 | jz .nd |
||
1518 | rep movsd |
||
1519 | .nd: |
||
1520 | pop ecx |
||
1521 | |||
1522 | ; unlock mutex |
||
1523 | push eax ecx |
||
1524 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1525 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1526 | pop ecx eax |
||
1527 | |||
1528 | ret |
||
1529 | |||
1530 | ;----------------------------------------------------------------- |
||
1531 | ; |
||
1532 | ; SOCKET_ring_read |
||
1533 | ; |
||
1534 | ; IN: eax = ring struct ptr |
||
1535 | ; ecx = bytes to read |
||
1536 | ; edx = offset |
||
1537 | ; edi = ptr to buffer start |
||
1538 | ; |
||
1539 | ; OUT: eax = unchanged |
||
1540 | ; ecx = number of bytes read (0 on error) |
||
1541 | ; edx = destroyed |
||
1542 | ; esi = destroyed |
||
1543 | ; edi = ptr to buffer end |
||
1544 | ; |
||
1545 | ;----------------------------------------------------------------- |
||
1546 | align 4 |
||
1547 | SOCKET_ring_read: |
||
1548 | |||
3556 | hidnplayr | 1549 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx |
3545 | hidnplayr | 1550 | |
1551 | pusha |
||
1552 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1553 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1554 | popa |
||
1555 | |||
1556 | mov esi, [eax + RING_BUFFER.read_ptr] |
||
1557 | add esi, edx ; esi = start_ptr + offset |
||
1558 | |||
1559 | neg edx |
||
1560 | add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset |
||
1561 | jle .no_data_at_all |
||
1562 | |||
1563 | pusha |
||
1564 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1565 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1566 | popa |
||
1567 | |||
1568 | cmp ecx, edx |
||
1569 | ja .less_data |
||
1570 | |||
1571 | .copy: |
||
3556 | hidnplayr | 1572 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
3545 | hidnplayr | 1573 | push ecx |
1574 | shr ecx, 1 |
||
1575 | jnc .nb |
||
1576 | movsb |
||
1577 | .nb: |
||
1578 | shr ecx, 1 |
||
1579 | jnc .nw |
||
1580 | movsw |
||
1581 | .nw: |
||
1582 | test ecx, ecx |
||
1583 | jz .nd |
||
1584 | rep movsd |
||
1585 | .nd: |
||
1586 | pop ecx |
||
1587 | ret |
||
1588 | |||
1589 | .no_data_at_all: |
||
1590 | pusha |
||
1591 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1592 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1593 | popa |
||
1594 | |||
3556 | hidnplayr | 1595 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: no data at all!\n" |
3545 | hidnplayr | 1596 | xor ecx, ecx |
1597 | ret |
||
1598 | |||
1599 | .less_data: |
||
1600 | mov ecx, edx |
||
1601 | jmp .copy |
||
1602 | |||
1603 | |||
1604 | ;----------------------------------------------------------------- |
||
1605 | ; |
||
1606 | ; SOCKET_ring_free |
||
1607 | ; |
||
1608 | ; Free's some bytes from the ringbuffer |
||
1609 | ; |
||
1610 | ; IN: eax = ptr to ring struct |
||
1611 | ; ecx = data size |
||
1612 | ; |
||
1613 | ; OUT: ecx = number of bytes free-ed |
||
1614 | ; |
||
1615 | ;----------------------------------------------------------------- |
||
1616 | align 4 |
||
1617 | SOCKET_ring_free: |
||
1618 | |||
3556 | hidnplayr | 1619 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
3545 | hidnplayr | 1620 | |
1621 | push eax ecx |
||
1622 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1623 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1624 | pop ecx eax |
||
1625 | |||
1626 | sub [eax + RING_BUFFER.size], ecx |
||
1627 | jb .error |
||
1628 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1629 | |||
1630 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1631 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1632 | jb @f |
||
1633 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1634 | @@: |
||
1635 | |||
1636 | push eax ecx |
||
1637 | lea ecx, [eax + RING_BUFFER.mutex] ; TODO: check what registers this function actually destroys |
||
1638 | call mutex_unlock |
||
1639 | pop ecx eax |
||
1640 | |||
1641 | ret |
||
1642 | |||
1643 | .error: ; we could free all available bytes, but that would be stupid, i guess.. |
||
3556 | hidnplayr | 1644 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: buffer=%x error!\n", eax |
3545 | hidnplayr | 1645 | add [eax + RING_BUFFER.size], ecx |
1646 | |||
1647 | push eax |
||
1648 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1649 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1650 | pop eax |
||
1651 | |||
1652 | xor ecx, ecx |
||
1653 | ret |
||
1654 | |||
1655 | |||
1656 | ;----------------------------------------------------------------- |
||
1657 | ; |
||
1658 | ; SOCKET_block |
||
1659 | ; |
||
1660 | ; Suspends the thread attached to a socket |
||
1661 | ; |
||
1662 | ; IN: eax = socket ptr |
||
1663 | ; OUT: / |
||
1664 | ; |
||
1665 | ;----------------------------------------------------------------- |
||
1666 | align 4 |
||
1667 | SOCKET_block: |
||
1668 | |||
3556 | hidnplayr | 1669 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: %x\n", eax |
3545 | hidnplayr | 1670 | |
1671 | pushf |
||
1672 | cli |
||
1673 | |||
1674 | ; Set the 'socket is blocked' flag |
||
1675 | or [eax + SOCKET.state], SS_BLOCKED |
||
1676 | |||
1677 | ; Suspend the thread |
||
1678 | push edx |
||
1679 | mov edx, [TASK_BASE] |
||
1680 | mov [edx + TASKDATA.state], 1 ; Suspended |
||
1681 | |||
1682 | ; Remember the thread ID so we can wake it up again |
||
1683 | mov edx, [edx + TASKDATA.pid] |
||
3556 | hidnplayr | 1684 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: suspending thread: %u\n", edx |
3545 | hidnplayr | 1685 | mov [eax + SOCKET.TID], edx |
1686 | pop edx |
||
1687 | |||
1688 | call change_task |
||
1689 | popf |
||
1690 | |||
3556 | hidnplayr | 1691 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: continueing\n" |
3545 | hidnplayr | 1692 | |
1693 | ret |
||
1694 | |||
1695 | |||
1696 | ;----------------------------------------------------------------- |
||
1697 | ; |
||
1698 | ; SOCKET_notify |
||
1699 | ; |
||
1700 | ; notify's the owner of a socket that something happened |
||
1701 | ; |
||
1702 | ; IN: eax = socket ptr |
||
1703 | ; OUT: / |
||
1704 | ; |
||
1705 | ;----------------------------------------------------------------- |
||
1706 | align 4 |
||
1707 | SOCKET_notify: |
||
1708 | |||
3556 | hidnplayr | 1709 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: %x\n", eax |
3545 | hidnplayr | 1710 | |
1711 | call SOCKET_check |
||
1712 | jz .error |
||
1713 | |||
1714 | test [eax + SOCKET.state], SS_BLOCKED |
||
1715 | jnz .unblock |
||
1716 | |||
1717 | test [eax + SOCKET.options], SO_NONBLOCK |
||
1718 | jz .error |
||
1719 | |||
1720 | push eax ecx esi |
||
1721 | |||
1722 | ; socket exists and is of non blocking type. |
||
1723 | ; We'll try to flag an event to the thread |
||
1724 | |||
1725 | mov eax, [eax + SOCKET.TID] |
||
1726 | test eax, eax |
||
1727 | jz .done |
||
1728 | mov ecx, 1 |
||
1729 | mov esi, TASK_DATA + TASKDATA.pid |
||
1730 | |||
1731 | .next_pid: |
||
1732 | cmp [esi], eax |
||
1733 | je .found_pid |
||
1734 | inc ecx |
||
1735 | add esi, 0x20 |
||
1736 | cmp ecx, [TASK_COUNT] |
||
1737 | jbe .next_pid |
||
1738 | ; PID not found, TODO: close socket! |
||
1739 | jmp .done |
||
1740 | |||
1741 | .found_pid: |
||
1742 | shl ecx, 8 |
||
1743 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1744 | |||
3556 | hidnplayr | 1745 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Raised a network event!\n" |
3545 | hidnplayr | 1746 | |
1747 | jmp .done |
||
1748 | |||
1749 | .unblock: |
||
1750 | push eax ecx esi |
||
1751 | ; Clear the 'socket is blocked' flag |
||
1752 | and [eax + SOCKET.state], not SS_BLOCKED |
||
1753 | |||
1754 | ; Find the thread's TASK_DATA |
||
1755 | mov eax, [eax + SOCKET.TID] |
||
1756 | test eax, eax |
||
1757 | jz .error |
||
1758 | xor ecx, ecx |
||
1759 | inc ecx |
||
1760 | mov esi, TASK_DATA |
||
1761 | .next: |
||
1762 | cmp [esi + TASKDATA.pid], eax |
||
1763 | je .found |
||
1764 | inc ecx |
||
1765 | add esi, 0x20 |
||
1766 | cmp ecx, [TASK_COUNT] |
||
1767 | jbe .next |
||
1768 | jmp .error |
||
1769 | .found: |
||
1770 | |||
1771 | ; Run the thread |
||
1772 | mov [esi + TASKDATA.state], 0 ; Running |
||
3556 | hidnplayr | 1773 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Unblocked socket!\n" |
3545 | hidnplayr | 1774 | |
1775 | .done: |
||
1776 | pop esi ecx eax |
||
1777 | |||
1778 | .error: |
||
1779 | ret |
||
1780 | |||
1781 | |||
1782 | ;-------------------------------------------------------------------- |
||
1783 | ; |
||
1784 | ; SOCKET_alloc |
||
1785 | ; |
||
1786 | ; Allocate memory for socket data and put new socket into the list |
||
1787 | ; Newly created socket is initialized with calling PID and number and |
||
1788 | ; put into beginning of list (which is a fastest way). |
||
1789 | ; |
||
1790 | ; IN: / |
||
1791 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1792 | ; edi = socket number |
||
1793 | ; ZF = cleared on error |
||
1794 | ; |
||
1795 | ;-------------------------------------------------------------------- |
||
1796 | align 4 |
||
1797 | SOCKET_alloc: |
||
1798 | |||
1799 | push ebx |
||
1800 | |||
1801 | stdcall kernel_alloc, SOCKETBUFFSIZE |
||
3556 | hidnplayr | 1802 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: ptr=%x\n", eax |
3545 | hidnplayr | 1803 | or eax, eax |
1804 | jz .exit |
||
1805 | |||
1806 | ; zero-initialize allocated memory |
||
1807 | push eax |
||
1808 | mov edi, eax |
||
1809 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1810 | xor eax, eax |
||
1811 | rep stosd |
||
1812 | pop eax |
||
1813 | |||
1814 | ; set send-and receive procedures to return -1 |
||
1815 | mov [eax + SOCKET.snd_proc], s_error |
||
1816 | mov [eax + SOCKET.rcv_proc], s_error |
||
1817 | |||
1818 | ; find first free socket number and use it |
||
1819 | mov edi, [last_socket_num] |
||
1820 | .next_socket_number: |
||
1821 | inc edi |
||
1822 | jz .next_socket_number ; avoid socket nr 0 |
||
1823 | cmp edi, -1 |
||
1824 | je .next_socket_number ; avoid socket nr -1 |
||
1825 | mov ebx, net_sockets |
||
1826 | .next_socket: |
||
1827 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1828 | test ebx, ebx |
||
1829 | jz .last_socket |
||
1830 | |||
1831 | cmp [ebx + SOCKET.Number], edi |
||
1832 | jne .next_socket |
||
1833 | jmp .next_socket_number |
||
1834 | |||
1835 | .last_socket: |
||
1836 | mov [last_socket_num], edi |
||
1837 | mov [eax + SOCKET.Number], edi |
||
3556 | hidnplayr | 1838 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: number=%u\n", edi |
3545 | hidnplayr | 1839 | |
1840 | ; Fill in PID |
||
1841 | mov ebx, [TASK_BASE] |
||
1842 | mov ebx, [ebx + TASKDATA.pid] |
||
1843 | mov [eax + SOCKET.PID], ebx |
||
1844 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1845 | |||
1846 | ; init mutex |
||
1847 | pusha |
||
1848 | lea ecx, [eax + SOCKET.mutex] |
||
1849 | call mutex_init |
||
1850 | popa |
||
1851 | |||
1852 | ; add socket to the list by re-arranging some pointers |
||
1853 | mov ebx, [net_sockets + SOCKET.NextPtr] |
||
1854 | |||
1855 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1856 | mov [eax + SOCKET.NextPtr], ebx |
||
1857 | |||
1858 | test ebx, ebx |
||
1859 | jz @f |
||
1860 | |||
1861 | pusha |
||
1862 | lea ecx, [ebx + SOCKET.mutex] |
||
1863 | call mutex_lock |
||
1864 | popa |
||
1865 | |||
1866 | mov [ebx + SOCKET.PrevPtr], eax |
||
1867 | |||
1868 | pusha |
||
1869 | lea ecx, [ebx + SOCKET.mutex] |
||
1870 | call mutex_unlock |
||
1871 | popa |
||
1872 | @@: |
||
1873 | |||
1874 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1875 | or eax, eax ; used to clear zero flag |
||
1876 | .exit: |
||
1877 | pop ebx |
||
1878 | |||
1879 | ret |
||
1880 | |||
1881 | |||
1882 | ;---------------------------------------------------- |
||
1883 | ; |
||
1884 | ; SOCKET_free |
||
1885 | ; |
||
1886 | ; Free socket data memory and remove socket from the list |
||
1887 | ; |
||
1888 | ; IN: eax = socket ptr |
||
1889 | ; OUT: / |
||
1890 | ; |
||
1891 | ;---------------------------------------------------- |
||
1892 | align 4 |
||
1893 | SOCKET_free: |
||
1894 | |||
3556 | hidnplayr | 1895 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: %x\n", eax |
3545 | hidnplayr | 1896 | |
1897 | call SOCKET_check |
||
1898 | jz .error |
||
1899 | |||
1900 | push ebx |
||
1901 | |||
1902 | pusha |
||
1903 | lea ecx, [eax + SOCKET.mutex] |
||
1904 | call mutex_lock |
||
1905 | popa |
||
1906 | |||
1907 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
1908 | jnz .no_tcp |
||
1909 | |||
1910 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1911 | jnz .no_tcp |
||
1912 | |||
1913 | mov ebx, eax |
||
1914 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1915 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1916 | mov eax, ebx |
||
1917 | .no_tcp: |
||
1918 | |||
1919 | push eax ; this will be passed to kernel_free |
||
1920 | mov ebx, [eax + SOCKET.NextPtr] |
||
1921 | mov eax, [eax + SOCKET.PrevPtr] |
||
1922 | |||
3556 | hidnplayr | 1923 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
3545 | hidnplayr | 1924 | |
1925 | test eax, eax |
||
1926 | jz @f |
||
1927 | mov [eax + SOCKET.NextPtr], ebx |
||
1928 | @@: |
||
1929 | |||
1930 | test ebx, ebx |
||
1931 | jz @f |
||
1932 | mov [ebx + SOCKET.PrevPtr], eax |
||
1933 | @@: |
||
1934 | |||
1935 | call kernel_free |
||
1936 | pop ebx |
||
1937 | |||
3556 | hidnplayr | 1938 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: success!\n" |
3545 | hidnplayr | 1939 | |
1940 | .error: |
||
1941 | ret |
||
1942 | |||
1943 | ;------------------------------------ |
||
1944 | ; |
||
1945 | ; SOCKET_fork |
||
1946 | ; |
||
1947 | ; Create a child socket |
||
1948 | ; |
||
1949 | ; IN: socket nr in ebx |
||
1950 | ; OUT: child socket nr in eax |
||
1951 | ; |
||
1952 | ;----------------------------------- |
||
1953 | align 4 |
||
1954 | SOCKET_fork: |
||
1955 | |||
3556 | hidnplayr | 1956 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_fork: %x\n", ebx |
3545 | hidnplayr | 1957 | |
1958 | ; Exit if backlog queue is full |
||
1959 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
||
1960 | cmp ax, [ebx + SOCKET.backlog] |
||
1961 | jae .fail |
||
1962 | |||
1963 | ; Allocate new socket |
||
1964 | push ebx |
||
1965 | call SOCKET_alloc |
||
1966 | pop ebx |
||
1967 | jz .fail |
||
1968 | |||
1969 | push eax |
||
1970 | mov esi, esp |
||
1971 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
1972 | pop eax |
||
1973 | |||
1974 | ; Copy structure from current socket to new |
||
1975 | ; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket |
||
1976 | lea esi, [ebx + SOCKET.PID] |
||
1977 | lea edi, [eax + SOCKET.PID] |
||
1978 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
1979 | rep movsd |
||
1980 | |||
1981 | and [eax + SOCKET.options], not SO_ACCEPTCON |
||
1982 | |||
1983 | ret |
||
1984 | |||
1985 | .fail2: |
||
1986 | add esp, 4+4+4 |
||
1987 | .fail: |
||
3556 | hidnplayr | 1988 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_fork: failed\n" |
3545 | hidnplayr | 1989 | xor eax, eax |
1990 | ret |
||
1991 | |||
1992 | |||
1993 | ;--------------------------------------------------- |
||
1994 | ; |
||
1995 | ; SOCKET_num_to_ptr |
||
1996 | ; |
||
1997 | ; Get socket structure address by its number |
||
1998 | ; |
||
1999 | ; IN: ecx = socket number |
||
2000 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
2001 | ; ZF = set on error |
||
2002 | ; |
||
2003 | ;--------------------------------------------------- |
||
2004 | align 4 |
||
2005 | SOCKET_num_to_ptr: |
||
2006 | |||
3556 | hidnplayr | 2007 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_num_to_ptr: num=%u ", ecx |
3545 | hidnplayr | 2008 | |
2009 | mov eax, net_sockets |
||
2010 | |||
2011 | .next_socket: |
||
2012 | mov eax, [eax + SOCKET.NextPtr] |
||
2013 | or eax, eax |
||
2014 | jz .error |
||
2015 | cmp [eax + SOCKET.Number], ecx |
||
2016 | jne .next_socket |
||
2017 | |||
2018 | test eax, eax |
||
2019 | |||
3556 | hidnplayr | 2020 | DEBUGF DEBUG_NETWORK_VERBOSE, "ptr=%x\n", eax |
3545 | hidnplayr | 2021 | ret |
2022 | |||
2023 | .error: |
||
3637 | hidnplayr | 2024 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_num_to_ptr: not found\n", eax |
3545 | hidnplayr | 2025 | ret |
2026 | |||
2027 | |||
2028 | ;--------------------------------------------------- |
||
2029 | ; |
||
2030 | ; SOCKET_ptr_to_num |
||
2031 | ; |
||
2032 | ; Get socket number by its address |
||
2033 | ; |
||
2034 | ; IN: eax = socket ptr |
||
2035 | ; OUT: eax = 0 on error, socket num otherwise |
||
2036 | ; ZF = set on error |
||
2037 | ; |
||
2038 | ;--------------------------------------------------- |
||
2039 | align 4 |
||
2040 | SOCKET_ptr_to_num: |
||
2041 | |||
3556 | hidnplayr | 2042 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ptr_to_num: ptr=%x ", eax |
3545 | hidnplayr | 2043 | |
2044 | call SOCKET_check |
||
2045 | jz .error |
||
2046 | |||
2047 | mov eax, [eax + SOCKET.Number] |
||
2048 | |||
3556 | hidnplayr | 2049 | DEBUGF DEBUG_NETWORK_VERBOSE, "num=%u\n", eax |
3545 | hidnplayr | 2050 | ret |
2051 | |||
2052 | .error: |
||
3556 | hidnplayr | 2053 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_ptr_to_num: not found\n", eax |
3545 | hidnplayr | 2054 | ret |
2055 | |||
2056 | |||
2057 | ;--------------------------------------------------- |
||
2058 | ; |
||
2059 | ; SOCKET_check |
||
2060 | ; |
||
2061 | ; checks if the given value is really a socket ptr |
||
2062 | ; |
||
2063 | ; IN: eax = socket ptr |
||
2064 | ; OUT: eax = 0 on error, unchanged otherwise |
||
2065 | ; ZF = set on error |
||
2066 | ; |
||
2067 | ;--------------------------------------------------- |
||
2068 | align 4 |
||
2069 | SOCKET_check: |
||
2070 | |||
3556 | hidnplayr | 2071 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check: %x\n", eax |
3545 | hidnplayr | 2072 | |
2073 | push ebx |
||
2074 | mov ebx, net_sockets |
||
2075 | |||
2076 | .next_socket: |
||
2077 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2078 | or ebx, ebx |
||
2079 | jz .done |
||
2080 | cmp ebx, eax |
||
2081 | jnz .next_socket |
||
2082 | |||
2083 | .done: |
||
2084 | mov eax, ebx |
||
2085 | test eax, eax |
||
2086 | pop ebx |
||
2087 | |||
2088 | ret |
||
2089 | |||
2090 | |||
2091 | |||
2092 | ;--------------------------------------------------- |
||
2093 | ; |
||
2094 | ; SOCKET_check_owner |
||
2095 | ; |
||
2096 | ; checks if the caller application owns the socket |
||
2097 | ; |
||
2098 | ; IN: eax = socket ptr |
||
2099 | ; OUT: ZF = true/false |
||
2100 | ; |
||
2101 | ;--------------------------------------------------- |
||
2102 | align 4 |
||
2103 | SOCKET_check_owner: |
||
2104 | |||
3556 | hidnplayr | 2105 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_owner: %x\n", eax |
3545 | hidnplayr | 2106 | |
2107 | push ebx |
||
2108 | mov ebx, [TASK_BASE] |
||
2109 | mov ebx, [ebx + TASKDATA.pid] |
||
2110 | cmp [eax + SOCKET.PID], ebx |
||
2111 | pop ebx |
||
2112 | |||
2113 | ret |
||
2114 | |||
2115 | |||
2116 | |||
2117 | |||
2118 | ;------------------------------------------------------ |
||
2119 | ; |
||
2120 | ; SOCKET_process_end |
||
2121 | ; |
||
2122 | ; Kernel calls this function when a certain process ends |
||
2123 | ; This function will check if the process had any open sockets |
||
2124 | ; And update them accordingly |
||
2125 | ; |
||
2126 | ; IN: edx = pid |
||
2127 | ; OUT: / |
||
2128 | ; |
||
2129 | ;------------------------------------------------------ |
||
2130 | align 4 |
||
2131 | SOCKET_process_end: |
||
2132 | |||
3556 | hidnplayr | 2133 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: %x\n", edx |
3545 | hidnplayr | 2134 | |
2135 | push ebx |
||
2136 | mov ebx, net_sockets |
||
2137 | |||
2138 | .next_socket: |
||
2139 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2140 | .next_socket_test: |
||
2141 | test ebx, ebx |
||
2142 | jz .done |
||
2143 | |||
2144 | cmp [ebx + SOCKET.PID], edx |
||
2145 | jne .next_socket |
||
2146 | |||
3556 | hidnplayr | 2147 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: killing socket %x\n", ebx |
3545 | hidnplayr | 2148 | |
2149 | mov [ebx + SOCKET.PID], 0 |
||
2150 | mov eax, ebx |
||
2151 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2152 | pusha |
||
2153 | call SOCKET_close.socket |
||
2154 | popa |
||
2155 | jmp .next_socket_test |
||
2156 | |||
2157 | .done: |
||
2158 | pop ebx |
||
2159 | |||
2160 | ret |
||
2161 | |||
2162 | |||
2163 | |||
2164 | |||
2165 | ;----------------------------------------------------------------- |
||
2166 | ; |
||
2167 | ; SOCKET_is_connecting |
||
2168 | ; |
||
2169 | ; IN: eax = socket ptr |
||
2170 | ; OUT: / |
||
2171 | ; |
||
2172 | ;----------------------------------------------------------------- |
||
2173 | |||
2174 | align 4 |
||
2175 | SOCKET_is_connecting: |
||
2176 | |||
3556 | hidnplayr | 2177 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connecting: %x\n", eax |
3545 | hidnplayr | 2178 | |
2179 | and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
||
2180 | or [eax + SOCKET.options], SS_ISCONNECTING |
||
2181 | |||
2182 | jmp SOCKET_notify |
||
2183 | |||
2184 | |||
2185 | |||
2186 | ;----------------------------------------------------------------- |
||
2187 | ; |
||
2188 | ; SOCKET_is_connected |
||
2189 | ; |
||
2190 | ; IN: eax = socket ptr |
||
2191 | ; OUT: / |
||
2192 | ; |
||
2193 | ;----------------------------------------------------------------- |
||
2194 | |||
2195 | align 4 |
||
2196 | SOCKET_is_connected: |
||
2197 | |||
3556 | hidnplayr | 2198 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connected: %x\n", eax |
3545 | hidnplayr | 2199 | |
2200 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
||
2201 | or [eax + SOCKET.options], SS_ISCONNECTED |
||
2202 | |||
2203 | jmp SOCKET_notify |
||
2204 | |||
2205 | |||
2206 | |||
2207 | |||
2208 | ;----------------------------------------------------------------- |
||
2209 | ; |
||
2210 | ; SOCKET_is_disconnecting |
||
2211 | ; |
||
2212 | ; IN: eax = socket ptr |
||
2213 | ; OUT: / |
||
2214 | ; |
||
2215 | ;----------------------------------------------------------------- |
||
2216 | |||
2217 | align 4 |
||
2218 | SOCKET_is_disconnecting: |
||
2219 | |||
3556 | hidnplayr | 2220 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnecting: %x\n", eax |
3545 | hidnplayr | 2221 | |
2222 | and [eax + SOCKET.options], not (SS_ISCONNECTING) |
||
2223 | or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
2224 | |||
2225 | jmp SOCKET_notify |
||
2226 | |||
2227 | |||
2228 | |||
2229 | ;----------------------------------------------------------------- |
||
2230 | ; |
||
2231 | ; SOCKET_is_disconnected |
||
2232 | ; |
||
2233 | ; IN: eax = socket ptr |
||
2234 | ; OUT: / |
||
2235 | ; |
||
2236 | ;----------------------------------------------------------------- |
||
2237 | |||
2238 | align 4 |
||
2239 | SOCKET_is_disconnected: |
||
2240 | |||
3556 | hidnplayr | 2241 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnected: %x\n", eax |
3545 | hidnplayr | 2242 | |
2243 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
||
2244 | or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
2245 | |||
2246 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
2247 | je .tcp |
||
2248 | |||
2249 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
2250 | je .udp |
||
2251 | |||
2252 | jmp SOCKET_notify |
||
2253 | |||
2254 | .tcp: |
||
2255 | .udp: |
||
2256 | mov [eax + UDP_SOCKET.LocalPort], 0 ; UDP and TCP structs store localport at the same offset |
||
2257 | mov [eax + UDP_SOCKET.RemotePort], 0 |
||
2258 | |||
2259 | jmp SOCKET_notify |
||
2260 | |||
2261 | |||
2262 | ;----------------------------------------------------------------- |
||
2263 | ; |
||
2264 | ; SOCKET_cant_recv_more |
||
2265 | ; |
||
2266 | ; IN: eax = socket ptr |
||
2267 | ; OUT: / |
||
2268 | ; |
||
2269 | ;----------------------------------------------------------------- |
||
2270 | |||
2271 | align 4 |
||
2272 | SOCKET_cant_recv_more: |
||
2273 | |||
3556 | hidnplayr | 2274 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_recv_more: %x\n", eax |
3545 | hidnplayr | 2275 | |
2276 | or [eax + SOCKET.options], SS_CANTRCVMORE |
||
2277 | |||
3565 | hidnplayr | 2278 | call SOCKET_notify |
2279 | |||
3545 | hidnplayr | 2280 | ret |
2281 | |||
2282 | |||
2283 | |||
2284 | ;----------------------------------------------------------------- |
||
2285 | ; |
||
2286 | ; SOCKET_cant_send_more |
||
2287 | ; |
||
2288 | ; IN: eax = socket ptr |
||
2289 | ; OUT: / |
||
2290 | ; |
||
2291 | ;----------------------------------------------------------------- |
||
2292 | |||
2293 | align 4 |
||
2294 | SOCKET_cant_send_more: |
||
2295 | |||
3556 | hidnplayr | 2296 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_send_more: %x\n", eax |
3545 | hidnplayr | 2297 | |
2298 | or [eax + SOCKET.options], SS_CANTSENDMORE |
||
3565 | hidnplayr | 2299 | mov [eax + SOCKET.snd_proc], s_error |
3545 | hidnplayr | 2300 | |
3565 | hidnplayr | 2301 | call SOCKET_notify |
2302 | |||
3545 | hidnplayr | 2303 | ret |