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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 | 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/DGRAP |
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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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4030 | hidnplayr | 42 | connect_proc dd ? |
3545 | hidnplayr | 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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4021 | hidnplayr | 135 | timer_connect dd ? |
3545 | hidnplayr | 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 | temp_bits db ? |
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145 | rb 3 ; align |
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146 | |||
4021 | hidnplayr | 147 | |
3545 | hidnplayr | 148 | ends |
149 | |||
150 | struct UDP_SOCKET IP_SOCKET |
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151 | |||
152 | LocalPort dw ? ; network byte order |
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153 | RemotePort dw ? ; network byte order |
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154 | |||
155 | ends |
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156 | |||
157 | |||
158 | struct ICMP_SOCKET IP_SOCKET |
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159 | |||
160 | Identifier dw ? |
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161 | |||
162 | ends |
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163 | |||
164 | |||
165 | struct RING_BUFFER |
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166 | |||
167 | mutex MUTEX |
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168 | start_ptr dd ? ; Pointer to start of buffer |
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169 | end_ptr dd ? ; pointer to end of buffer |
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170 | read_ptr dd ? ; Read pointer |
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171 | write_ptr dd ? ; Write pointer |
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172 | size dd ? ; Number of bytes buffered |
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173 | |||
174 | ends |
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175 | |||
176 | struct STREAM_SOCKET TCP_SOCKET |
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177 | |||
178 | rcv RING_BUFFER |
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179 | snd RING_BUFFER |
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180 | |||
181 | ends |
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182 | |||
183 | struct socket_queue_entry |
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184 | |||
185 | data_ptr dd ? |
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186 | buf_ptr dd ? |
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187 | data_size dd ? |
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188 | |||
189 | ends |
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190 | |||
191 | |||
192 | SOCKETBUFFSIZE = 4096 ; in bytes |
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193 | |||
194 | SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket |
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195 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
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196 | SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
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197 | |||
198 | uglobal |
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3698 | hidnplayr | 199 | align 4 |
200 | |||
3545 | hidnplayr | 201 | net_sockets rd 4 |
202 | last_socket_num dd ? |
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203 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
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204 | last_TCP_port dw ? ; |
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3647 | hidnplayr | 205 | socket_mutex MUTEX |
3698 | hidnplayr | 206 | |
3545 | hidnplayr | 207 | endg |
208 | |||
209 | |||
210 | ;----------------------------------------------------------------- |
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211 | ; |
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212 | ; SOCKET_init |
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213 | ; |
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214 | ;----------------------------------------------------------------- |
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215 | macro SOCKET_init { |
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216 | |||
217 | xor eax, eax |
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218 | mov edi, net_sockets |
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219 | mov ecx, 5 |
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3711 | clevermous | 220 | rep stosd |
3545 | hidnplayr | 221 | |
222 | @@: |
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223 | pseudo_random eax |
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3600 | hidnplayr | 224 | cmp ax, EPHEMERAL_PORT_MIN |
3545 | hidnplayr | 225 | jb @r |
3600 | hidnplayr | 226 | cmp ax, EPHEMERAL_PORT_MAX |
3545 | hidnplayr | 227 | ja @r |
228 | xchg al, ah |
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229 | mov [last_UDP_port], ax |
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230 | |||
231 | @@: |
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232 | pseudo_random eax |
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3600 | hidnplayr | 233 | cmp ax, EPHEMERAL_PORT_MIN |
3545 | hidnplayr | 234 | jb @r |
3600 | hidnplayr | 235 | cmp ax, EPHEMERAL_PORT_MAX |
3545 | hidnplayr | 236 | ja @r |
237 | xchg al, ah |
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238 | mov [last_TCP_port], ax |
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239 | |||
3647 | hidnplayr | 240 | mov ecx, socket_mutex |
241 | call mutex_init |
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242 | |||
3545 | hidnplayr | 243 | } |
244 | |||
245 | ;----------------------------------------------------------------- |
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246 | ; |
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247 | ; Socket API (function 74) |
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248 | ; |
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249 | ;----------------------------------------------------------------- |
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250 | align 4 |
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251 | sys_socket: |
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252 | |||
3673 | hidnplayr | 253 | mov dword[esp+20], 0 ; Set error code to 0 |
3659 | hidnplayr | 254 | |
3545 | hidnplayr | 255 | cmp ebx, 255 |
256 | jz SOCKET_debug |
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257 | |||
258 | cmp ebx, .number |
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3658 | hidnplayr | 259 | ja .error |
3545 | hidnplayr | 260 | jmp dword [.table + 4*ebx] |
261 | |||
262 | .table: |
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263 | dd SOCKET_open ; 0 |
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264 | dd SOCKET_close ; 1 |
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265 | dd SOCKET_bind ; 2 |
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266 | dd SOCKET_listen ; 3 |
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267 | dd SOCKET_connect ; 4 |
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268 | dd SOCKET_accept ; 5 |
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269 | dd SOCKET_send ; 6 |
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270 | dd SOCKET_receive ; 7 |
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271 | dd SOCKET_set_opt ; 8 |
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272 | dd SOCKET_get_opt ; 9 |
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273 | dd SOCKET_pair ; 10 |
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274 | .number = ($ - .table) / 4 - 1 |
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275 | |||
3658 | hidnplayr | 276 | .error: |
277 | mov dword[esp+32], -1 |
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3673 | hidnplayr | 278 | mov dword[esp+20], EINVAL |
3545 | hidnplayr | 279 | |
280 | ret |
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281 | |||
282 | ;----------------------------------------------------------------- |
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283 | ; |
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284 | ; SOCKET_open |
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285 | ; |
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286 | ; IN: domain in ecx |
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287 | ; type in edx |
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288 | ; protocol in esi |
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289 | ; OUT: eax is socket num, -1 on error |
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290 | ; |
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291 | ;----------------------------------------------------------------- |
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292 | align 4 |
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293 | SOCKET_open: |
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294 | |||
3556 | hidnplayr | 295 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_open: domain=%u type=%u protocol=%x ", ecx, edx, esi |
3545 | hidnplayr | 296 | |
297 | push ecx edx esi |
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298 | call SOCKET_alloc |
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299 | pop esi edx ecx |
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3658 | hidnplayr | 300 | jz .nobuffs |
3545 | hidnplayr | 301 | |
302 | mov [esp+32], edi ; return socketnumber |
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3556 | hidnplayr | 303 | DEBUGF DEBUG_NETWORK_VERBOSE, "socknum=%u\n", edi |
3545 | hidnplayr | 304 | |
3705 | hidnplayr | 305 | test edx, SO_NONBLOCK |
306 | jz @f |
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307 | or [eax + SOCKET.options], SO_NONBLOCK |
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308 | and edx, not SO_NONBLOCK |
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309 | @@: |
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3545 | hidnplayr | 310 | |
311 | mov [eax + SOCKET.Domain], ecx |
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312 | mov [eax + SOCKET.Type], edx |
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313 | mov [eax + SOCKET.Protocol], esi |
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4030 | hidnplayr | 314 | mov [eax + SOCKET.connect_proc], connect_notsupp |
3545 | hidnplayr | 315 | |
316 | cmp ecx, AF_INET4 |
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317 | jne .no_inet4 |
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318 | |||
319 | cmp edx, SOCK_DGRAM |
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320 | je .udp |
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321 | |||
322 | cmp edx, SOCK_STREAM |
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323 | je .tcp |
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324 | |||
325 | cmp edx, SOCK_RAW |
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326 | je .raw |
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327 | |||
328 | .no_inet4: |
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329 | cmp ecx, AF_PPP |
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330 | jne .no_ppp |
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331 | |||
332 | cmp esi, PPP_PROTO_ETHERNET |
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333 | je .pppoe |
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334 | |||
335 | .no_ppp: |
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3658 | hidnplayr | 336 | .unsupported: |
337 | push eax |
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338 | call SOCKET_free |
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339 | pop eax |
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3673 | hidnplayr | 340 | mov dword[esp+20], EOPNOTSUPP |
3658 | hidnplayr | 341 | mov dword[esp+32], -1 |
3545 | hidnplayr | 342 | ret |
343 | |||
3658 | hidnplayr | 344 | .nobuffs: |
3673 | hidnplayr | 345 | mov dword[esp+20], ENOBUFS |
3658 | hidnplayr | 346 | mov dword[esp+32], -1 |
347 | ret |
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348 | |||
3545 | hidnplayr | 349 | .raw: |
350 | test esi, esi ; IP_PROTO_IP |
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3658 | hidnplayr | 351 | jz .raw_ip |
3545 | hidnplayr | 352 | |
353 | cmp esi, IP_PROTO_ICMP |
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3658 | hidnplayr | 354 | je .raw_icmp |
3545 | hidnplayr | 355 | |
3658 | hidnplayr | 356 | jmp .unsupported |
3545 | hidnplayr | 357 | |
358 | align 4 |
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359 | .udp: |
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360 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
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361 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
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362 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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4030 | hidnplayr | 363 | mov [eax + SOCKET.connect_proc], UDP_connect |
3545 | hidnplayr | 364 | ret |
365 | |||
366 | align 4 |
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367 | .tcp: |
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368 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
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369 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
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370 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
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4030 | hidnplayr | 371 | mov [eax + SOCKET.connect_proc], TCP_connect |
3545 | hidnplayr | 372 | |
373 | TCP_init_socket eax |
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374 | ret |
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375 | |||
376 | |||
377 | align 4 |
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3658 | hidnplayr | 378 | .raw_ip: |
3545 | hidnplayr | 379 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
380 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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4030 | hidnplayr | 381 | mov [eax + SOCKET.connect_proc], IPv4_connect |
3545 | hidnplayr | 382 | ret |
383 | |||
384 | |||
385 | align 4 |
||
3658 | hidnplayr | 386 | .raw_icmp: |
3545 | hidnplayr | 387 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
388 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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4030 | hidnplayr | 389 | mov [eax + SOCKET.connect_proc], IPv4_connect |
3545 | hidnplayr | 390 | ret |
391 | |||
392 | align 4 |
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393 | .pppoe: |
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394 | push eax |
||
395 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
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396 | pop eax |
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397 | |||
398 | mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe |
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399 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
400 | ret |
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401 | |||
402 | |||
403 | ;----------------------------------------------------------------- |
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404 | ; |
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405 | ; SOCKET_bind |
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406 | ; |
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407 | ; IN: socket number in ecx |
||
408 | ; pointer to sockaddr struct in edx |
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409 | ; length of that struct in esi |
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410 | ; OUT: 0 on success |
||
411 | ; |
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412 | ;----------------------------------------------------------------- |
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413 | align 4 |
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414 | SOCKET_bind: |
||
415 | |||
3556 | hidnplayr | 416 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 417 | |
418 | call SOCKET_num_to_ptr |
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3658 | hidnplayr | 419 | jz .invalid |
3545 | hidnplayr | 420 | |
421 | cmp esi, 2 |
||
3658 | hidnplayr | 422 | jb .invalid |
3545 | hidnplayr | 423 | |
4052 | hidnplayr | 424 | cmp [eax + UDP_SOCKET.LocalPort], 0 ; Socket can only be bound once |
425 | jnz .invalid |
||
426 | |||
3545 | hidnplayr | 427 | cmp word [edx], AF_INET4 |
428 | je .af_inet4 |
||
429 | |||
430 | cmp word [edx], AF_LOCAL |
||
431 | je .af_local |
||
432 | |||
3658 | hidnplayr | 433 | .notsupp: |
3673 | hidnplayr | 434 | mov dword[esp+20], EOPNOTSUPP |
3658 | hidnplayr | 435 | mov dword[esp+32], -1 |
436 | ret |
||
3545 | hidnplayr | 437 | |
3658 | hidnplayr | 438 | .invalid: |
3673 | hidnplayr | 439 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 440 | mov dword[esp+32], -1 |
441 | ret |
||
442 | |||
3545 | hidnplayr | 443 | .af_local: |
444 | ; TODO: write code here |
||
3658 | hidnplayr | 445 | mov dword[esp+32], 0 |
3545 | hidnplayr | 446 | ret |
447 | |||
448 | .af_inet4: |
||
449 | cmp esi, 6 |
||
3658 | hidnplayr | 450 | jb .invalid |
3545 | hidnplayr | 451 | |
452 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
453 | je .udp |
||
454 | |||
455 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
456 | je .tcp |
||
457 | |||
3658 | hidnplayr | 458 | jmp .notsupp |
3545 | hidnplayr | 459 | |
460 | .tcp: |
||
461 | .udp: |
||
462 | |||
4052 | hidnplayr | 463 | pushd [edx + 4] ; First, fill in the IP |
464 | popd [eax + IP_SOCKET.LocalIP] |
||
3545 | hidnplayr | 465 | |
4052 | hidnplayr | 466 | mov bx, [edx + 2] ; Did caller specify a local port? |
467 | test bx, bx |
||
468 | jnz .just_check |
||
469 | call SOCKET_find_port ; Nope, find an ephemeral one |
||
470 | jmp .done |
||
471 | |||
472 | .just_check: |
||
473 | call SOCKET_check_port ; Yes, check if it's still available |
||
474 | jz .addrinuse ; ZF is set by socket_check_port on error |
||
475 | |||
476 | .done: |
||
3556 | hidnplayr | 477 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_bind: local ip=%u.%u.%u.%u\n",\ |
3545 | hidnplayr | 478 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
479 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
480 | |||
3658 | hidnplayr | 481 | mov dword[esp+32], 0 |
3545 | hidnplayr | 482 | ret |
483 | |||
3658 | hidnplayr | 484 | .addrinuse: |
485 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 486 | mov dword[esp+20], EADDRINUSE |
3658 | hidnplayr | 487 | ret |
3545 | hidnplayr | 488 | |
489 | |||
490 | |||
3658 | hidnplayr | 491 | |
3545 | hidnplayr | 492 | ;----------------------------------------------------------------- |
493 | ; |
||
494 | ; SOCKET_connect |
||
495 | ; |
||
496 | ; IN: socket number in ecx |
||
497 | ; pointer to sockaddr struct in edx |
||
498 | ; length of that struct in esi |
||
499 | ; OUT: 0 on success |
||
500 | ; |
||
501 | ;----------------------------------------------------------------- |
||
502 | align 4 |
||
503 | SOCKET_connect: |
||
504 | |||
3556 | hidnplayr | 505 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 506 | |
507 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 508 | jz .invalid |
3545 | hidnplayr | 509 | |
510 | cmp esi, 8 |
||
3658 | hidnplayr | 511 | jb .invalid |
3545 | hidnplayr | 512 | |
4025 | hidnplayr | 513 | cmp [eax + SOCKET.state], SS_ISCONNECTING |
514 | je .already |
||
515 | |||
516 | test [eax + SOCKET.options], SO_ACCEPTCON |
||
517 | jnz .notsupp |
||
518 | |||
4030 | hidnplayr | 519 | call [eax + SOCKET.connect_proc] |
3545 | hidnplayr | 520 | |
4030 | hidnplayr | 521 | mov dword[esp+20], ebx |
522 | mov dword[esp+32], eax |
||
523 | ret |
||
524 | |||
525 | |||
3658 | hidnplayr | 526 | .notsupp: |
3673 | hidnplayr | 527 | mov dword[esp+20], EOPNOTSUPP |
3658 | hidnplayr | 528 | mov dword[esp+32], -1 |
529 | ret |
||
3545 | hidnplayr | 530 | |
3658 | hidnplayr | 531 | .invalid: |
3673 | hidnplayr | 532 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 533 | mov dword[esp+32], -1 |
534 | ret |
||
535 | |||
4025 | hidnplayr | 536 | .already: |
537 | mov dword[esp+20], EALREADY |
||
538 | mov dword[esp+32], -1 |
||
539 | ret |
||
540 | |||
541 | |||
4030 | hidnplayr | 542 | connect_notsupp: |
543 | xor eax, eax |
||
544 | dec eax |
||
545 | mov ebx, EOPNOTSUPP |
||
3545 | hidnplayr | 546 | ret |
547 | |||
4025 | hidnplayr | 548 | |
3545 | hidnplayr | 549 | ;----------------------------------------------------------------- |
550 | ; |
||
551 | ; SOCKET_listen |
||
552 | ; |
||
553 | ; IN: socket number in ecx |
||
554 | ; backlog in edx |
||
555 | ; OUT: eax is socket num, -1 on error |
||
556 | ; |
||
557 | ;----------------------------------------------------------------- |
||
558 | align 4 |
||
559 | SOCKET_listen: |
||
560 | |||
3556 | hidnplayr | 561 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx |
3545 | hidnplayr | 562 | |
563 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 564 | jz .invalid |
3545 | hidnplayr | 565 | |
566 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
3658 | hidnplayr | 567 | jne .notsupp |
3545 | hidnplayr | 568 | |
569 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
3658 | hidnplayr | 570 | jne .invalid |
3545 | hidnplayr | 571 | |
572 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
||
3658 | hidnplayr | 573 | je .already |
3545 | hidnplayr | 574 | |
575 | cmp [eax + IP_SOCKET.LocalIP], 0 |
||
576 | jne @f |
||
3601 | hidnplayr | 577 | push [IP_LIST + 4] ;;; fixme!!!! |
3545 | hidnplayr | 578 | pop [eax + IP_SOCKET.LocalIP] |
579 | @@: |
||
580 | |||
581 | cmp edx, MAX_backlog |
||
582 | jbe @f |
||
583 | mov edx, MAX_backlog |
||
584 | @@: |
||
585 | |||
586 | mov [eax + SOCKET.backlog], dx |
||
587 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
588 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
589 | mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer |
||
590 | |||
591 | push eax |
||
592 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
593 | pop eax |
||
594 | |||
3658 | hidnplayr | 595 | mov dword[esp+32], 0 |
596 | ret |
||
3545 | hidnplayr | 597 | |
3658 | hidnplayr | 598 | .notsupp: |
3673 | hidnplayr | 599 | mov dword[esp+20], EOPNOTSUPP |
3658 | hidnplayr | 600 | mov dword[esp+32], -1 |
3545 | hidnplayr | 601 | ret |
602 | |||
3658 | hidnplayr | 603 | .invalid: |
3673 | hidnplayr | 604 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 605 | mov dword[esp+32], -1 |
606 | ret |
||
3545 | hidnplayr | 607 | |
3658 | hidnplayr | 608 | .already: |
3673 | hidnplayr | 609 | mov dword[esp+20], EALREADY |
3658 | hidnplayr | 610 | mov dword[esp+32], -1 |
611 | ret |
||
612 | |||
613 | |||
3545 | hidnplayr | 614 | ;----------------------------------------------------------------- |
615 | ; |
||
616 | ; SOCKET_accept |
||
617 | ; |
||
618 | ; IN: socket number in ecx |
||
619 | ; addr in edx |
||
620 | ; addrlen in esi |
||
621 | ; OUT: eax is socket num, -1 on error |
||
622 | ; |
||
623 | ;----------------------------------------------------------------- |
||
624 | align 4 |
||
625 | SOCKET_accept: |
||
626 | |||
3556 | hidnplayr | 627 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
3545 | hidnplayr | 628 | |
629 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 630 | jz .invalid |
3545 | hidnplayr | 631 | |
632 | test [eax + SOCKET.options], SO_ACCEPTCON |
||
3658 | hidnplayr | 633 | jz .invalid |
3545 | hidnplayr | 634 | |
635 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
3658 | hidnplayr | 636 | jne .notsupp |
3545 | hidnplayr | 637 | |
638 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
3658 | hidnplayr | 639 | jne .invalid |
3545 | hidnplayr | 640 | |
641 | .loop: |
||
642 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block |
||
643 | |||
644 | ; Ok, we got a socket ptr |
||
645 | mov eax, [esi] |
||
646 | |||
647 | ; Change thread ID to that of the current thread |
||
648 | mov ebx, [TASK_BASE] |
||
649 | mov ebx, [ebx + TASKDATA.pid] |
||
650 | mov [eax + SOCKET.TID], ebx |
||
651 | |||
3817 | hidnplayr | 652 | ; Convert it to a socket number |
653 | call SOCKET_ptr_to_num |
||
654 | jz .invalid ; FIXME ? |
||
655 | |||
3545 | hidnplayr | 656 | ; and return it to caller |
657 | mov [esp+32], eax |
||
658 | ret |
||
659 | |||
660 | .block: |
||
661 | test [eax + SOCKET.options], SO_NONBLOCK |
||
3658 | hidnplayr | 662 | jnz .wouldblock |
3545 | hidnplayr | 663 | |
664 | call SOCKET_block |
||
665 | jmp .loop |
||
666 | |||
3658 | hidnplayr | 667 | .wouldblock: |
3673 | hidnplayr | 668 | mov dword[esp+20], EWOULDBLOCK |
3658 | hidnplayr | 669 | mov dword[esp+32], -1 |
670 | ret |
||
671 | |||
672 | .invalid: |
||
3673 | hidnplayr | 673 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 674 | mov dword[esp+32], -1 |
675 | ret |
||
676 | |||
677 | .notsupp: |
||
3673 | hidnplayr | 678 | mov dword[esp+20], EOPNOTSUPP |
3658 | hidnplayr | 679 | mov dword[esp+32], -1 |
680 | ret |
||
681 | |||
3545 | hidnplayr | 682 | ;----------------------------------------------------------------- |
683 | ; |
||
684 | ; SOCKET_close |
||
685 | ; |
||
686 | ; IN: socket number in ecx |
||
687 | ; OUT: eax is socket num, -1 on error |
||
688 | ; |
||
689 | ;----------------------------------------------------------------- |
||
690 | align 4 |
||
691 | SOCKET_close: |
||
692 | |||
3556 | hidnplayr | 693 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_close: socknum=%u\n", ecx |
3545 | hidnplayr | 694 | |
695 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 696 | jz .invalid |
3545 | hidnplayr | 697 | |
3658 | hidnplayr | 698 | mov dword[esp+32], 0 ; The socket exists, so we will succeed in closing it. |
3545 | hidnplayr | 699 | |
700 | or [eax + SOCKET.options], SO_NONBLOCK ; Mark the socket as non blocking, we dont want it to block any longer! |
||
701 | |||
702 | test [eax + SOCKET.state], SS_BLOCKED ; Is the socket still in blocked state? |
||
703 | jz @f |
||
704 | call SOCKET_notify.unblock ; Unblock it. |
||
705 | @@: |
||
706 | |||
707 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
708 | jne .free |
||
709 | |||
710 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
711 | je .tcp |
||
712 | |||
713 | .free: |
||
714 | call SOCKET_free |
||
715 | ret |
||
716 | |||
717 | .tcp: |
||
718 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
||
719 | jb .free |
||
720 | |||
721 | call TCP_usrclosed |
||
722 | call TCP_output ;;;; Fixme: is this nescessary?? |
||
3646 | hidnplayr | 723 | call SOCKET_free |
3545 | hidnplayr | 724 | |
725 | ret |
||
726 | |||
727 | |||
3658 | hidnplayr | 728 | .invalid: |
3673 | hidnplayr | 729 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 730 | mov dword[esp+32], -1 |
731 | ret |
||
732 | |||
733 | |||
3545 | hidnplayr | 734 | ;----------------------------------------------------------------- |
735 | ; |
||
736 | ; SOCKET_receive |
||
737 | ; |
||
738 | ; IN: socket number in ecx |
||
739 | ; addr to buffer in edx |
||
740 | ; length of buffer in esi |
||
741 | ; flags in edi |
||
742 | ; OUT: eax is number of bytes copied, -1 on error |
||
743 | ; |
||
744 | ;----------------------------------------------------------------- |
||
745 | align 4 |
||
746 | SOCKET_receive: |
||
747 | |||
3556 | hidnplayr | 748 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi |
3545 | hidnplayr | 749 | |
750 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 751 | jz .invalid |
3545 | hidnplayr | 752 | |
3704 | hidnplayr | 753 | .loop: |
754 | push edi |
||
3565 | hidnplayr | 755 | call [eax + SOCKET.rcv_proc] |
3704 | hidnplayr | 756 | pop edi |
3545 | hidnplayr | 757 | |
3704 | hidnplayr | 758 | cmp ebx, EWOULDBLOCK |
759 | jne .return |
||
760 | |||
761 | test edi, MSG_DONTWAIT |
||
762 | jnz .return_err |
||
763 | |||
3737 | hidnplayr | 764 | test [eax + SOCKET.state], SS_CANTRCVMORE |
765 | jnz .return_err |
||
766 | |||
3704 | hidnplayr | 767 | ; test [eax + SOCKET.options], SO_NONBLOCK |
768 | ; jnz .return_err |
||
769 | |||
770 | call SOCKET_block |
||
771 | jmp .loop |
||
772 | |||
773 | |||
774 | .invalid: |
||
775 | push EINVAL |
||
776 | pop ebx |
||
777 | .return_err: |
||
778 | mov eax, -1 |
||
779 | .return: |
||
3673 | hidnplayr | 780 | mov [esp+20], ebx |
3565 | hidnplayr | 781 | mov [esp+32], eax |
782 | ret |
||
3545 | hidnplayr | 783 | |
3565 | hidnplayr | 784 | |
3658 | hidnplayr | 785 | |
3704 | hidnplayr | 786 | |
787 | |||
3545 | hidnplayr | 788 | align 4 |
789 | SOCKET_receive_dgram: |
||
3704 | hidnplayr | 790 | |
3556 | hidnplayr | 791 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: DGRAM\n" |
3545 | hidnplayr | 792 | |
3704 | hidnplayr | 793 | mov ebx, esi ; bufferlength |
3545 | hidnplayr | 794 | |
3704 | hidnplayr | 795 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .wouldblock ; sets esi only on success. |
3545 | hidnplayr | 796 | mov ecx, [esi + socket_queue_entry.data_size] |
3556 | hidnplayr | 797 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: %u bytes data\n", ecx |
3545 | hidnplayr | 798 | |
3704 | hidnplayr | 799 | cmp ecx, ebx ; If data segment does not fit in applications buffer, abort |
3545 | hidnplayr | 800 | ja .too_small |
801 | |||
3565 | hidnplayr | 802 | push ecx |
3545 | hidnplayr | 803 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
804 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
3556 | hidnplayr | 805 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi |
3545 | hidnplayr | 806 | |
3704 | hidnplayr | 807 | ; copy the data from kernel buffer to application buffer |
808 | mov edi, edx ; bufferaddr |
||
3545 | hidnplayr | 809 | shr ecx, 1 |
810 | jnc .nb |
||
811 | movsb |
||
812 | .nb: |
||
813 | shr ecx, 1 |
||
814 | jnc .nw |
||
815 | movsw |
||
816 | .nw: |
||
817 | test ecx, ecx |
||
818 | jz .nd |
||
3711 | clevermous | 819 | rep movsd |
3545 | hidnplayr | 820 | .nd: |
821 | |||
3861 | hidnplayr | 822 | call NET_packet_free |
3704 | hidnplayr | 823 | pop eax ; return number of bytes copied to application |
824 | xor ebx, ebx |
||
3545 | hidnplayr | 825 | ret |
826 | |||
827 | .too_small: |
||
3565 | hidnplayr | 828 | mov eax, -1 |
3704 | hidnplayr | 829 | push EMSGSIZE |
830 | pop ebx |
||
3565 | hidnplayr | 831 | ret |
3545 | hidnplayr | 832 | |
3658 | hidnplayr | 833 | .wouldblock: |
3704 | hidnplayr | 834 | push EWOULDBLOCK |
835 | pop ebx |
||
3658 | hidnplayr | 836 | ret |
3545 | hidnplayr | 837 | |
3658 | hidnplayr | 838 | |
3704 | hidnplayr | 839 | |
3545 | hidnplayr | 840 | align 4 |
841 | SOCKET_receive_local: |
||
842 | |||
843 | ; does this socket have a PID yet? |
||
844 | cmp [eax + SOCKET.PID], 0 |
||
845 | jne @f |
||
846 | |||
847 | ; Change PID to that of current process |
||
848 | mov ebx, [TASK_BASE] |
||
849 | mov ebx, [ebx + TASKDATA.pid] |
||
850 | mov [eax + SOCKET.PID], ebx |
||
3704 | hidnplayr | 851 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
3545 | hidnplayr | 852 | @@: |
853 | |||
854 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
||
855 | |||
3704 | hidnplayr | 856 | ; ... continue to SOCKET_receive_stream |
857 | |||
3545 | hidnplayr | 858 | align 4 |
859 | SOCKET_receive_stream: |
||
860 | |||
3556 | hidnplayr | 861 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_receive: STREAM\n" |
3545 | hidnplayr | 862 | |
3704 | hidnplayr | 863 | cmp [eax + STREAM_SOCKET.rcv + RING_BUFFER.size], 0 |
864 | je .wouldblock |
||
865 | |||
866 | test edi, MSG_PEEK |
||
867 | jnz .peek |
||
868 | |||
3545 | hidnplayr | 869 | mov ecx, esi |
870 | mov edi, edx |
||
871 | xor edx, edx |
||
872 | |||
873 | add eax, STREAM_SOCKET.rcv |
||
3704 | hidnplayr | 874 | call SOCKET_ring_read ; copy data from kernel buffer to application buffer |
875 | call SOCKET_ring_free ; free read memory |
||
3545 | hidnplayr | 876 | |
3704 | hidnplayr | 877 | mov eax, ecx ; return number of bytes copied |
878 | xor ebx, ebx ; errorcode = 0 (no error) |
||
3545 | hidnplayr | 879 | ret |
880 | |||
3704 | hidnplayr | 881 | .wouldblock: |
882 | push EWOULDBLOCK |
||
883 | pop ebx |
||
884 | ret |
||
885 | |||
3545 | hidnplayr | 886 | .peek: |
3565 | hidnplayr | 887 | mov eax, [eax + STREAM_SOCKET.rcv + RING_BUFFER.size] |
3704 | hidnplayr | 888 | xor ebx, ebx |
3545 | hidnplayr | 889 | ret |
890 | |||
891 | |||
892 | ;----------------------------------------------------------------- |
||
893 | ; |
||
894 | ; SOCKET_send |
||
895 | ; |
||
896 | ; |
||
897 | ; IN: socket number in ecx |
||
898 | ; pointer to data in edx |
||
899 | ; datalength in esi |
||
900 | ; flags in edi |
||
901 | ; OUT: -1 on error |
||
902 | ; |
||
903 | ;----------------------------------------------------------------- |
||
904 | align 4 |
||
905 | SOCKET_send: |
||
906 | |||
3556 | hidnplayr | 907 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi |
3545 | hidnplayr | 908 | |
909 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 910 | jz .invalid |
3545 | hidnplayr | 911 | |
912 | mov ecx, esi |
||
913 | mov esi, edx |
||
914 | |||
915 | jmp [eax + SOCKET.snd_proc] |
||
916 | |||
3658 | hidnplayr | 917 | .invalid: |
3673 | hidnplayr | 918 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 919 | mov dword[esp+32], -1 |
920 | ret |
||
3545 | hidnplayr | 921 | |
3658 | hidnplayr | 922 | |
3545 | hidnplayr | 923 | align 4 |
924 | SOCKET_send_udp: |
||
925 | |||
3556 | hidnplayr | 926 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: UDP\n" |
3545 | hidnplayr | 927 | |
928 | mov [esp+32], ecx |
||
929 | call UDP_output |
||
930 | cmp eax, -1 |
||
3658 | hidnplayr | 931 | je .error |
3545 | hidnplayr | 932 | ret |
933 | |||
3658 | hidnplayr | 934 | .error: |
935 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 936 | mov dword[esp+20], EMSGSIZE ; FIXME: UDP_output should return error codes! |
3658 | hidnplayr | 937 | ret |
3545 | hidnplayr | 938 | |
3658 | hidnplayr | 939 | |
3545 | hidnplayr | 940 | align 4 |
941 | SOCKET_send_tcp: |
||
942 | |||
3556 | hidnplayr | 943 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: TCP\n" |
3545 | hidnplayr | 944 | |
945 | push eax |
||
946 | add eax, STREAM_SOCKET.snd |
||
947 | call SOCKET_ring_write |
||
948 | pop eax |
||
949 | |||
950 | mov [esp+32], ecx |
||
3658 | hidnplayr | 951 | mov [eax + SOCKET.errorcode], 0 |
952 | push eax |
||
953 | call TCP_output ; FIXME: this doesnt look pretty, does it? |
||
954 | pop eax |
||
955 | mov eax, [eax + SOCKET.errorcode] |
||
3673 | hidnplayr | 956 | mov [esp+20], eax |
3545 | hidnplayr | 957 | ret |
958 | |||
959 | |||
960 | align 4 |
||
961 | SOCKET_send_ip: |
||
962 | |||
3556 | hidnplayr | 963 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: IPv4\n" |
3545 | hidnplayr | 964 | |
965 | mov [esp+32], ecx |
||
3658 | hidnplayr | 966 | call IPv4_output_raw ; FIXME: IPv4_output_raw should return error codes! |
3545 | hidnplayr | 967 | cmp eax, -1 |
3658 | hidnplayr | 968 | je .error |
3545 | hidnplayr | 969 | ret |
970 | |||
3658 | hidnplayr | 971 | .error: |
972 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 973 | mov dword[esp+20], EMSGSIZE |
3658 | hidnplayr | 974 | ret |
3545 | hidnplayr | 975 | |
3658 | hidnplayr | 976 | |
3545 | hidnplayr | 977 | align 4 |
978 | SOCKET_send_icmp: |
||
979 | |||
3556 | hidnplayr | 980 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: ICMP\n" |
3545 | hidnplayr | 981 | |
982 | mov [esp+32], ecx |
||
3658 | hidnplayr | 983 | call ICMP_output_raw ; FIXME: errorcodes |
3545 | hidnplayr | 984 | cmp eax, -1 |
3658 | hidnplayr | 985 | je .error |
3545 | hidnplayr | 986 | ret |
987 | |||
3658 | hidnplayr | 988 | .error: |
989 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 990 | mov dword[esp+20], EMSGSIZE |
3658 | hidnplayr | 991 | ret |
3545 | hidnplayr | 992 | |
3658 | hidnplayr | 993 | |
3545 | hidnplayr | 994 | align 4 |
995 | SOCKET_send_pppoe: |
||
996 | |||
3556 | hidnplayr | 997 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: PPPoE\n" |
3545 | hidnplayr | 998 | |
999 | mov [esp+32], ecx |
||
1000 | mov ebx, [eax + SOCKET.device] |
||
1001 | |||
3658 | hidnplayr | 1002 | call PPPoE_discovery_output ; FIXME: errorcodes |
3545 | hidnplayr | 1003 | cmp eax, -1 |
3658 | hidnplayr | 1004 | je .error |
3545 | hidnplayr | 1005 | ret |
1006 | |||
3658 | hidnplayr | 1007 | .error: |
1008 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 1009 | mov dword[esp+20], EMSGSIZE |
3658 | hidnplayr | 1010 | ret |
3545 | hidnplayr | 1011 | |
1012 | |||
3658 | hidnplayr | 1013 | |
3545 | hidnplayr | 1014 | align 4 |
1015 | SOCKET_send_local: |
||
1016 | |||
1017 | ; does this socket have a PID yet? |
||
1018 | cmp [eax + SOCKET.PID], 0 |
||
1019 | jne @f |
||
1020 | |||
1021 | ; Change PID to that of current process |
||
1022 | mov ebx, [TASK_BASE] |
||
1023 | mov ebx, [ebx + TASKDATA.pid] |
||
1024 | mov [eax + SOCKET.PID], ebx |
||
1025 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1026 | @@: |
||
1027 | mov [eax + SOCKET.snd_proc], SOCKET_send_local_ |
||
1028 | |||
1029 | align 4 |
||
1030 | SOCKET_send_local_: |
||
1031 | |||
3556 | hidnplayr | 1032 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_send: LOCAL\n" |
3545 | hidnplayr | 1033 | |
1034 | ; get the other side's socket and check if it still exists |
||
1035 | mov eax, [eax + SOCKET.device] |
||
1036 | call SOCKET_check |
||
3658 | hidnplayr | 1037 | jz .invalid |
3545 | hidnplayr | 1038 | |
1039 | ; allright, shove in the data! |
||
1040 | push eax |
||
1041 | add eax, STREAM_SOCKET.rcv |
||
1042 | call SOCKET_ring_write |
||
1043 | pop eax |
||
1044 | |||
1045 | ; return the number of written bytes (or errorcode) to application |
||
1046 | mov [esp+32], ecx |
||
1047 | |||
1048 | ; and notify the other end |
||
1049 | call SOCKET_notify |
||
1050 | |||
1051 | ret |
||
1052 | |||
3658 | hidnplayr | 1053 | .invalid: |
1054 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 1055 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 1056 | ret |
3545 | hidnplayr | 1057 | |
3658 | hidnplayr | 1058 | |
3545 | hidnplayr | 1059 | ;----------------------------------------------------------------- |
1060 | ; |
||
1061 | ; SOCKET_get_options |
||
1062 | ; |
||
1063 | ; IN: ecx = socket number |
||
1064 | ; edx = pointer to the options: |
||
1065 | ; dd level, optname, optval, optlen |
||
1066 | ; OUT: -1 on error |
||
1067 | ; |
||
1068 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
1069 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1070 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
||
1071 | ; |
||
1072 | ;----------------------------------------------------------------- |
||
1073 | align 4 |
||
1074 | SOCKET_get_opt: |
||
1075 | |||
3556 | hidnplayr | 1076 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_get_opt\n" |
3545 | hidnplayr | 1077 | |
1078 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 1079 | jz .invalid |
3545 | hidnplayr | 1080 | |
1081 | cmp dword [edx], IP_PROTO_TCP |
||
3658 | hidnplayr | 1082 | jne .invalid |
3545 | hidnplayr | 1083 | cmp dword [edx+4], -2 |
1084 | je @f |
||
1085 | cmp dword [edx+4], -3 |
||
3658 | hidnplayr | 1086 | jne .invalid |
3545 | hidnplayr | 1087 | @@: |
1088 | ; mov eax, [edx+12] |
||
1089 | ; test eax, eax |
||
1090 | ; jz .fail |
||
1091 | ; cmp dword [eax], 4 |
||
1092 | ; mov dword [eax], 4 |
||
1093 | ; jb .fail |
||
1094 | ; stdcall net_socket_num_to_addr, ecx |
||
1095 | ; test eax, eax |
||
1096 | ; jz .fail |
||
1097 | ; ; todo: check that eax is really TCP socket |
||
1098 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
1099 | ; cmp dword [edx+4], -2 |
||
1100 | ; jz @f |
||
1101 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1102 | @@: |
||
1103 | mov eax, [edx+8] |
||
1104 | test eax, eax |
||
1105 | jz @f |
||
1106 | mov [eax], ecx |
||
1107 | @@: |
||
1108 | mov dword [esp+32], 0 |
||
1109 | ret |
||
1110 | |||
3658 | hidnplayr | 1111 | .invalid: |
1112 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 1113 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 1114 | ret |
3545 | hidnplayr | 1115 | |
1116 | |||
3658 | hidnplayr | 1117 | |
3545 | hidnplayr | 1118 | ;----------------------------------------------------------------- |
1119 | ; |
||
1120 | ; SOCKET_set_options |
||
1121 | ; |
||
1122 | ; IN: ecx = socket number |
||
1123 | ; edx = pointer to the options: |
||
1124 | ; dd level, optname, optlen, optval |
||
1125 | ; OUT: -1 on error |
||
1126 | ; |
||
1127 | ;----------------------------------------------------------------- |
||
1128 | align 4 |
||
1129 | SOCKET_set_opt: |
||
1130 | |||
3556 | hidnplayr | 1131 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt\n" |
3545 | hidnplayr | 1132 | |
1133 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 1134 | jz .invalid |
3545 | hidnplayr | 1135 | |
1136 | cmp dword [edx], SOL_SOCKET |
||
3658 | hidnplayr | 1137 | jne .invalid |
3545 | hidnplayr | 1138 | |
1139 | cmp dword [edx+4], SO_BINDTODEVICE |
||
1140 | je .bind |
||
1141 | |||
3658 | hidnplayr | 1142 | .invalid: |
1143 | mov dword[esp+32], -1 |
||
3673 | hidnplayr | 1144 | mov dword[esp+20], EINVAL |
3658 | hidnplayr | 1145 | ret |
3545 | hidnplayr | 1146 | |
1147 | .bind: |
||
3658 | hidnplayr | 1148 | cmp dword[edx+8], 0 |
3545 | hidnplayr | 1149 | je .unbind |
1150 | |||
3658 | hidnplayr | 1151 | movzx edx, byte[edx + 9] |
3600 | hidnplayr | 1152 | cmp edx, NET_DEVICES_MAX |
3658 | hidnplayr | 1153 | ja .invalid |
3545 | hidnplayr | 1154 | |
1155 | mov edx, [NET_DRV_LIST + 4*edx] |
||
1156 | test edx, edx |
||
3658 | hidnplayr | 1157 | jz .already |
3545 | hidnplayr | 1158 | mov [eax + SOCKET.device], edx |
1159 | |||
3556 | hidnplayr | 1160 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx |
3545 | hidnplayr | 1161 | |
3658 | hidnplayr | 1162 | mov dword[esp+32], 0 ; success! |
3545 | hidnplayr | 1163 | ret |
1164 | |||
1165 | .unbind: |
||
1166 | mov [eax + SOCKET.device], 0 |
||
1167 | |||
3658 | hidnplayr | 1168 | mov dword[esp+32], 0 ; success! |
3545 | hidnplayr | 1169 | ret |
1170 | |||
3658 | hidnplayr | 1171 | .already: |
3673 | hidnplayr | 1172 | mov dword[esp+20], EALREADY |
3658 | hidnplayr | 1173 | mov dword[esp+32], -1 |
1174 | ret |
||
3545 | hidnplayr | 1175 | |
1176 | |||
3658 | hidnplayr | 1177 | |
1178 | |||
3545 | hidnplayr | 1179 | ;----------------------------------------------------------------- |
1180 | ; |
||
1181 | ; SOCKET_pair |
||
1182 | ; |
||
1183 | ; Allocates a pair of linked LOCAL domain sockets |
||
1184 | ; |
||
1185 | ; IN: / |
||
1186 | ; OUT: eax is socket1 num, -1 on error |
||
1187 | ; ebx is socket2 num |
||
1188 | ; |
||
1189 | ;----------------------------------------------------------------- |
||
1190 | align 4 |
||
1191 | SOCKET_pair: |
||
1192 | |||
3556 | hidnplayr | 1193 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_pair\n" |
3545 | hidnplayr | 1194 | |
1195 | call SOCKET_alloc |
||
3658 | hidnplayr | 1196 | jz .nomem1 |
3545 | hidnplayr | 1197 | mov [esp+32], edi ; application's eax |
1198 | |||
1199 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1200 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1201 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1202 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1203 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1204 | mov [eax + SOCKET.PID], 0 |
||
1205 | mov ebx, eax |
||
1206 | |||
1207 | call SOCKET_alloc |
||
3658 | hidnplayr | 1208 | jz .nomem2 |
3673 | hidnplayr | 1209 | mov [esp+20], edi ; application's ebx |
3545 | hidnplayr | 1210 | |
1211 | mov [eax + SOCKET.Domain], AF_LOCAL |
||
1212 | mov [eax + SOCKET.Type], SOCK_STREAM |
||
1213 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
1214 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
||
1215 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_local |
||
1216 | mov [eax + SOCKET.PID], 0 |
||
1217 | |||
1218 | ; Link the two sockets to eachother |
||
1219 | mov [eax + SOCKET.device], ebx |
||
1220 | mov [ebx + SOCKET.device], eax |
||
1221 | |||
1222 | lea eax, [eax + STREAM_SOCKET.rcv] |
||
1223 | call SOCKET_ring_create |
||
1224 | |||
1225 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
1226 | call SOCKET_ring_create |
||
1227 | pop eax |
||
1228 | |||
1229 | ret |
||
1230 | |||
3658 | hidnplayr | 1231 | .nomem2: |
3545 | hidnplayr | 1232 | mov eax, ebx |
1233 | call SOCKET_free |
||
3658 | hidnplayr | 1234 | .nomem1: |
1235 | mov dword[esp+32], -1 |
||
1236 | mov dword[esp+28], ENOMEM |
||
1237 | ret |
||
3545 | hidnplayr | 1238 | |
1239 | |||
1240 | |||
1241 | ;----------------------------------------------------------------- |
||
1242 | ; |
||
1243 | ; SOCKET_debug |
||
1244 | ; |
||
1245 | ; Copies socket variables to application buffer |
||
1246 | ; |
||
1247 | ; IN: ecx = socket number |
||
1248 | ; edx = pointer to buffer |
||
1249 | ; |
||
1250 | ; OUT: -1 on error |
||
1251 | ;----------------------------------------------------------------- |
||
1252 | align 4 |
||
1253 | SOCKET_debug: |
||
1254 | |||
3556 | hidnplayr | 1255 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_debug\n" |
3545 | hidnplayr | 1256 | |
1257 | mov edi, edx |
||
1258 | |||
1259 | test ecx, ecx |
||
1260 | jz .returnall |
||
1261 | |||
1262 | call SOCKET_num_to_ptr |
||
3658 | hidnplayr | 1263 | jz .invalid |
3545 | hidnplayr | 1264 | |
1265 | mov esi, eax |
||
1266 | mov ecx, SOCKETBUFFSIZE/4 |
||
3711 | clevermous | 1267 | rep movsd |
3545 | hidnplayr | 1268 | |
3658 | hidnplayr | 1269 | mov dword[esp+32], 0 |
3545 | hidnplayr | 1270 | ret |
1271 | |||
1272 | .returnall: |
||
1273 | mov ebx, net_sockets |
||
1274 | .next_socket: |
||
1275 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1276 | test ebx, ebx |
||
1277 | jz .done |
||
1278 | mov eax, [ebx + SOCKET.Number] |
||
1279 | stosd |
||
1280 | jmp .next_socket |
||
1281 | .done: |
||
1282 | xor eax, eax |
||
1283 | stosd |
||
3658 | hidnplayr | 1284 | mov dword[esp+32], eax |
1285 | ret |
||
3545 | hidnplayr | 1286 | |
3658 | hidnplayr | 1287 | .invalid: |
1288 | mov dword[esp+32], -1 |
||
1289 | mov dword[esp+28], EINVAL |
||
3545 | hidnplayr | 1290 | ret |
1291 | |||
1292 | |||
1293 | ;----------------------------------------------------------------- |
||
1294 | ; |
||
1295 | ; SOCKET_find_port |
||
1296 | ; |
||
1297 | ; Fills in the local port number for TCP and UDP sockets |
||
1298 | ; This procedure always works because the number of sockets is |
||
1299 | ; limited to a smaller number then the number of possible ports |
||
1300 | ; |
||
1301 | ; IN: eax = socket pointer |
||
1302 | ; OUT: / |
||
1303 | ; |
||
1304 | ;----------------------------------------------------------------- |
||
1305 | align 4 |
||
1306 | SOCKET_find_port: |
||
1307 | |||
3556 | hidnplayr | 1308 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_find_port\n" |
3545 | hidnplayr | 1309 | |
1310 | push ebx esi ecx |
||
1311 | |||
1312 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
1313 | je .udp |
||
1314 | |||
1315 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1316 | je .tcp |
||
1317 | |||
1318 | pop ecx esi ebx |
||
1319 | ret |
||
1320 | |||
1321 | .udp: |
||
1322 | mov bx, [last_UDP_port] |
||
1323 | call .findit |
||
1324 | mov [last_UDP_port], bx |
||
1325 | |||
1326 | pop ecx esi ebx |
||
1327 | ret |
||
1328 | |||
1329 | .tcp: |
||
1330 | mov bx, [last_TCP_port] |
||
1331 | call .findit |
||
1332 | mov [last_TCP_port], bx |
||
1333 | |||
1334 | pop ecx esi ebx |
||
1335 | ret |
||
1336 | |||
1337 | |||
1338 | .restart: |
||
1339 | mov bx, MIN_EPHEMERAL_PORT_N |
||
1340 | .findit: |
||
1341 | cmp bx, MAX_EPHEMERAL_PORT_N |
||
1342 | je .restart |
||
1343 | |||
1344 | add bh, 1 |
||
1345 | adc bl, 0 |
||
1346 | |||
1347 | call SOCKET_check_port |
||
1348 | jz .findit |
||
1349 | ret |
||
1350 | |||
1351 | |||
1352 | |||
1353 | ;----------------------------------------------------------------- |
||
1354 | ; |
||
1355 | ; SOCKET_check_port (to be used with AF_INET only!) |
||
1356 | ; |
||
1357 | ; Checks if a local port number is unused |
||
1358 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1359 | ; |
||
1360 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
||
1361 | ; bx = proposed socket number (network byte order) |
||
1362 | ; |
||
1363 | ; OUT: ZF = set on error |
||
1364 | ; |
||
1365 | ;----------------------------------------------------------------- |
||
1366 | align 4 |
||
1367 | SOCKET_check_port: |
||
1368 | |||
3556 | hidnplayr | 1369 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_port: " |
3545 | hidnplayr | 1370 | |
3647 | hidnplayr | 1371 | pusha |
1372 | mov ecx, socket_mutex |
||
1373 | call mutex_lock |
||
1374 | popa |
||
1375 | |||
3545 | hidnplayr | 1376 | mov ecx, [eax + SOCKET.Protocol] |
1377 | mov edx, [eax + IP_SOCKET.LocalIP] |
||
1378 | mov esi, net_sockets |
||
1379 | |||
1380 | .next_socket: |
||
1381 | mov esi, [esi + SOCKET.NextPtr] |
||
1382 | or esi, esi |
||
1383 | jz .port_ok |
||
1384 | |||
1385 | cmp [esi + SOCKET.Protocol], ecx |
||
1386 | jne .next_socket |
||
1387 | |||
1388 | cmp [esi + IP_SOCKET.LocalIP], edx |
||
1389 | jne .next_socket |
||
1390 | |||
1391 | cmp [esi + UDP_SOCKET.LocalPort], bx |
||
1392 | jne .next_socket |
||
1393 | |||
3647 | hidnplayr | 1394 | pusha |
1395 | mov ecx, socket_mutex |
||
1396 | call mutex_unlock |
||
1397 | popa |
||
1398 | |||
3556 | hidnplayr | 1399 | 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 | 1400 | ret |
1401 | |||
1402 | .port_ok: |
||
3647 | hidnplayr | 1403 | pusha |
1404 | mov ecx, socket_mutex |
||
1405 | call mutex_unlock |
||
1406 | popa |
||
1407 | |||
3556 | hidnplayr | 1408 | DEBUGF DEBUG_NETWORK_VERBOSE, "local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf |
3545 | hidnplayr | 1409 | mov [eax + UDP_SOCKET.LocalPort], bx |
1410 | or bx, bx ; clear the zero-flag |
||
1411 | ret |
||
1412 | |||
1413 | |||
1414 | |||
1415 | ;----------------------------------------------------------------- |
||
1416 | ; |
||
1417 | ; SOCKET_input |
||
1418 | ; |
||
1419 | ; Updates a (stateless) socket with received data |
||
1420 | ; |
||
1421 | ; Note: the mutex should already be set ! |
||
1422 | ; |
||
1423 | ; IN: eax = socket ptr |
||
1424 | ; ecx = data size |
||
1425 | ; esi = ptr to data |
||
1426 | ; [esp] = ptr to buf |
||
1427 | ; [esp + 4] = buf size |
||
1428 | ; |
||
1429 | ; OUT: / |
||
1430 | ; |
||
1431 | ;----------------------------------------------------------------- |
||
1432 | align 4 |
||
1433 | SOCKET_input: |
||
1434 | |||
3556 | hidnplayr | 1435 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
3545 | hidnplayr | 1436 | |
1437 | mov [esp+4], ecx |
||
1438 | push esi |
||
1439 | mov esi, esp |
||
1440 | |||
1441 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
||
1442 | |||
3556 | hidnplayr | 1443 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: success\n" |
3545 | hidnplayr | 1444 | add esp, sizeof.socket_queue_entry |
1445 | |||
1446 | pusha |
||
1447 | lea ecx, [eax + SOCKET.mutex] |
||
1448 | call mutex_unlock |
||
1449 | popa |
||
1450 | |||
1451 | jmp SOCKET_notify |
||
1452 | |||
1453 | .full: |
||
3556 | hidnplayr | 1454 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_input: socket %x is full!\n", eax |
3545 | hidnplayr | 1455 | |
1456 | pusha |
||
1457 | lea ecx, [eax + SOCKET.mutex] |
||
1458 | call mutex_unlock |
||
1459 | popa |
||
1460 | |||
3861 | hidnplayr | 1461 | call NET_packet_free |
3545 | hidnplayr | 1462 | add esp, 8 |
1463 | |||
1464 | ret |
||
1465 | |||
1466 | |||
1467 | ;-------------------------- |
||
1468 | ; |
||
1469 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1470 | ; |
||
1471 | align 4 |
||
1472 | SOCKET_ring_create: |
||
1473 | |||
1474 | push esi |
||
1475 | mov esi, eax |
||
1476 | |||
1477 | push edx |
||
1478 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1479 | pop edx |
||
1480 | |||
3556 | hidnplayr | 1481 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_created: %x\n", eax |
3545 | hidnplayr | 1482 | |
1483 | pusha |
||
1484 | lea ecx, [esi + RING_BUFFER.mutex] |
||
1485 | call mutex_init |
||
1486 | popa |
||
1487 | |||
1488 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1489 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1490 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1491 | mov [esi + RING_BUFFER.size], 0 |
||
1492 | add eax, SOCKET_MAXDATA |
||
1493 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1494 | mov eax, esi |
||
1495 | pop esi |
||
1496 | |||
1497 | ret |
||
1498 | |||
1499 | ;----------------------------------------------------------------- |
||
1500 | ; |
||
1501 | ; SOCKET_ring_write |
||
1502 | ; |
||
1503 | ; Adds data to a stream socket, and updates write pointer and size |
||
1504 | ; |
||
1505 | ; IN: eax = ptr to ring struct |
||
1506 | ; ecx = data size |
||
1507 | ; esi = ptr to data |
||
1508 | ; |
||
1509 | ; OUT: ecx = number of bytes stored |
||
1510 | ; |
||
1511 | ;----------------------------------------------------------------- |
||
1512 | align 4 |
||
1513 | SOCKET_ring_write: |
||
1514 | |||
3556 | hidnplayr | 1515 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
3545 | hidnplayr | 1516 | |
1517 | ; lock mutex |
||
1518 | pusha |
||
1519 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1520 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1521 | popa |
||
1522 | |||
1523 | ; calculate available size |
||
1524 | mov edi, SOCKET_MAXDATA |
||
1525 | sub edi, [eax + RING_BUFFER.size] ; available buffer size in edi |
||
1526 | cmp ecx, edi |
||
1527 | jbe .copy |
||
1528 | mov ecx, edi |
||
1529 | .copy: |
||
1530 | mov edi, [eax + RING_BUFFER.write_ptr] |
||
3556 | hidnplayr | 1531 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
3545 | hidnplayr | 1532 | |
1533 | ; update write ptr |
||
1534 | push edi |
||
1535 | add edi, ecx |
||
1536 | cmp edi, [eax + RING_BUFFER.end_ptr] |
||
1537 | jb @f |
||
1538 | sub edi, SOCKET_MAXDATA ; WRAP |
||
1539 | @@: |
||
1540 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1541 | pop edi |
||
1542 | |||
1543 | ; update size |
||
1544 | add [eax + RING_BUFFER.size], ecx |
||
1545 | |||
1546 | ; copy the data |
||
1547 | push ecx |
||
1548 | shr ecx, 1 |
||
1549 | jnc .nb |
||
1550 | movsb |
||
1551 | .nb: |
||
1552 | shr ecx, 1 |
||
1553 | jnc .nw |
||
1554 | movsw |
||
1555 | .nw: |
||
1556 | test ecx, ecx |
||
1557 | jz .nd |
||
3711 | clevermous | 1558 | rep movsd |
3545 | hidnplayr | 1559 | .nd: |
1560 | pop ecx |
||
1561 | |||
1562 | ; unlock mutex |
||
1563 | push eax ecx |
||
1564 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1565 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1566 | pop ecx eax |
||
1567 | |||
1568 | ret |
||
1569 | |||
1570 | ;----------------------------------------------------------------- |
||
1571 | ; |
||
1572 | ; SOCKET_ring_read |
||
1573 | ; |
||
1574 | ; IN: eax = ring struct ptr |
||
1575 | ; ecx = bytes to read |
||
1576 | ; edx = offset |
||
1577 | ; edi = ptr to buffer start |
||
1578 | ; |
||
1579 | ; OUT: eax = unchanged |
||
1580 | ; ecx = number of bytes read (0 on error) |
||
1581 | ; edx = destroyed |
||
1582 | ; esi = destroyed |
||
1583 | ; edi = ptr to buffer end |
||
1584 | ; |
||
1585 | ;----------------------------------------------------------------- |
||
1586 | align 4 |
||
1587 | SOCKET_ring_read: |
||
1588 | |||
3556 | hidnplayr | 1589 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx |
3545 | hidnplayr | 1590 | |
1591 | pusha |
||
1592 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1593 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1594 | popa |
||
1595 | |||
1596 | mov esi, [eax + RING_BUFFER.read_ptr] |
||
1597 | add esi, edx ; esi = start_ptr + offset |
||
1598 | |||
1599 | neg edx |
||
1600 | add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset |
||
1601 | jle .no_data_at_all |
||
1602 | |||
1603 | pusha |
||
1604 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1605 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1606 | popa |
||
1607 | |||
1608 | cmp ecx, edx |
||
1609 | ja .less_data |
||
1610 | |||
1611 | .copy: |
||
3556 | hidnplayr | 1612 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
3545 | hidnplayr | 1613 | push ecx |
1614 | shr ecx, 1 |
||
1615 | jnc .nb |
||
1616 | movsb |
||
1617 | .nb: |
||
1618 | shr ecx, 1 |
||
1619 | jnc .nw |
||
1620 | movsw |
||
1621 | .nw: |
||
1622 | test ecx, ecx |
||
1623 | jz .nd |
||
3711 | clevermous | 1624 | rep movsd |
3545 | hidnplayr | 1625 | .nd: |
1626 | pop ecx |
||
1627 | ret |
||
1628 | |||
1629 | .no_data_at_all: |
||
1630 | pusha |
||
1631 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1632 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1633 | popa |
||
1634 | |||
3556 | hidnplayr | 1635 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_read: no data at all!\n" |
3545 | hidnplayr | 1636 | xor ecx, ecx |
1637 | ret |
||
1638 | |||
1639 | .less_data: |
||
1640 | mov ecx, edx |
||
1641 | jmp .copy |
||
1642 | |||
1643 | |||
1644 | ;----------------------------------------------------------------- |
||
1645 | ; |
||
1646 | ; SOCKET_ring_free |
||
1647 | ; |
||
1648 | ; Free's some bytes from the ringbuffer |
||
1649 | ; |
||
1650 | ; IN: eax = ptr to ring struct |
||
1651 | ; ecx = data size |
||
1652 | ; |
||
1653 | ; OUT: ecx = number of bytes free-ed |
||
1654 | ; |
||
1655 | ;----------------------------------------------------------------- |
||
1656 | align 4 |
||
1657 | SOCKET_ring_free: |
||
1658 | |||
3556 | hidnplayr | 1659 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
3545 | hidnplayr | 1660 | |
1661 | push eax ecx |
||
1662 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1663 | call mutex_lock ; TODO: check what registers this function actually destroys |
||
1664 | pop ecx eax |
||
1665 | |||
1666 | sub [eax + RING_BUFFER.size], ecx |
||
1667 | jb .error |
||
1668 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1669 | |||
1670 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1671 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1672 | jb @f |
||
1673 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1674 | @@: |
||
1675 | |||
1676 | push eax ecx |
||
1677 | lea ecx, [eax + RING_BUFFER.mutex] ; TODO: check what registers this function actually destroys |
||
1678 | call mutex_unlock |
||
1679 | pop ecx eax |
||
1680 | |||
1681 | ret |
||
1682 | |||
1683 | .error: ; we could free all available bytes, but that would be stupid, i guess.. |
||
3556 | hidnplayr | 1684 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ring_free: buffer=%x error!\n", eax |
3545 | hidnplayr | 1685 | add [eax + RING_BUFFER.size], ecx |
1686 | |||
1687 | push eax |
||
1688 | lea ecx, [eax + RING_BUFFER.mutex] |
||
1689 | call mutex_unlock ; TODO: check what registers this function actually destroys |
||
1690 | pop eax |
||
1691 | |||
1692 | xor ecx, ecx |
||
1693 | ret |
||
1694 | |||
1695 | |||
1696 | ;----------------------------------------------------------------- |
||
1697 | ; |
||
1698 | ; SOCKET_block |
||
1699 | ; |
||
1700 | ; Suspends the thread attached to a socket |
||
1701 | ; |
||
1702 | ; IN: eax = socket ptr |
||
3674 | hidnplayr | 1703 | ; OUT: eax = unchanged |
3545 | hidnplayr | 1704 | ; |
1705 | ;----------------------------------------------------------------- |
||
1706 | align 4 |
||
1707 | SOCKET_block: |
||
1708 | |||
3556 | hidnplayr | 1709 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: %x\n", eax |
3545 | hidnplayr | 1710 | |
1711 | pushf |
||
3674 | hidnplayr | 1712 | push eax |
3545 | hidnplayr | 1713 | cli |
1714 | |||
1715 | ; Set the 'socket is blocked' flag |
||
1716 | or [eax + SOCKET.state], SS_BLOCKED |
||
1717 | |||
1718 | ; Suspend the thread |
||
1719 | push edx |
||
1720 | mov edx, [TASK_BASE] |
||
1721 | mov [edx + TASKDATA.state], 1 ; Suspended |
||
1722 | |||
1723 | ; Remember the thread ID so we can wake it up again |
||
1724 | mov edx, [edx + TASKDATA.pid] |
||
3556 | hidnplayr | 1725 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: suspending thread: %u\n", edx |
3545 | hidnplayr | 1726 | mov [eax + SOCKET.TID], edx |
1727 | pop edx |
||
1728 | |||
1729 | call change_task |
||
3674 | hidnplayr | 1730 | pop eax |
3545 | hidnplayr | 1731 | popf |
1732 | |||
3556 | hidnplayr | 1733 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_block: continueing\n" |
3545 | hidnplayr | 1734 | |
1735 | ret |
||
1736 | |||
1737 | |||
1738 | ;----------------------------------------------------------------- |
||
1739 | ; |
||
1740 | ; SOCKET_notify |
||
1741 | ; |
||
1742 | ; notify's the owner of a socket that something happened |
||
1743 | ; |
||
1744 | ; IN: eax = socket ptr |
||
3674 | hidnplayr | 1745 | ; OUT: eax = unchanged |
3545 | hidnplayr | 1746 | ; |
1747 | ;----------------------------------------------------------------- |
||
1748 | align 4 |
||
1749 | SOCKET_notify: |
||
1750 | |||
3556 | hidnplayr | 1751 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: %x\n", eax |
3545 | hidnplayr | 1752 | |
1753 | call SOCKET_check |
||
1754 | jz .error |
||
1755 | |||
1756 | test [eax + SOCKET.state], SS_BLOCKED |
||
1757 | jnz .unblock |
||
1758 | |||
3704 | hidnplayr | 1759 | ; test [eax + SOCKET.options], SO_NONBLOCK |
1760 | ; jz .error |
||
3545 | hidnplayr | 1761 | |
1762 | push eax ecx esi |
||
1763 | |||
1764 | ; socket exists and is of non blocking type. |
||
1765 | ; We'll try to flag an event to the thread |
||
1766 | |||
1767 | mov eax, [eax + SOCKET.TID] |
||
1768 | test eax, eax |
||
1769 | jz .done |
||
1770 | mov ecx, 1 |
||
1771 | mov esi, TASK_DATA + TASKDATA.pid |
||
1772 | |||
1773 | .next_pid: |
||
1774 | cmp [esi], eax |
||
1775 | je .found_pid |
||
1776 | inc ecx |
||
1777 | add esi, 0x20 |
||
1778 | cmp ecx, [TASK_COUNT] |
||
1779 | jbe .next_pid |
||
1780 | ; PID not found, TODO: close socket! |
||
1781 | jmp .done |
||
1782 | |||
1783 | .found_pid: |
||
1784 | shl ecx, 8 |
||
1785 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1786 | |||
3817 | hidnplayr | 1787 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: poking thread %u!\n", eax |
3545 | hidnplayr | 1788 | jmp .done |
1789 | |||
1790 | .unblock: |
||
1791 | push eax ecx esi |
||
1792 | ; Clear the 'socket is blocked' flag |
||
1793 | and [eax + SOCKET.state], not SS_BLOCKED |
||
1794 | |||
1795 | ; Find the thread's TASK_DATA |
||
1796 | mov eax, [eax + SOCKET.TID] |
||
1797 | test eax, eax |
||
1798 | jz .error |
||
1799 | xor ecx, ecx |
||
1800 | inc ecx |
||
1801 | mov esi, TASK_DATA |
||
1802 | .next: |
||
1803 | cmp [esi + TASKDATA.pid], eax |
||
1804 | je .found |
||
1805 | inc ecx |
||
1806 | add esi, 0x20 |
||
1807 | cmp ecx, [TASK_COUNT] |
||
1808 | jbe .next |
||
1809 | jmp .error |
||
1810 | .found: |
||
1811 | |||
1812 | ; Run the thread |
||
1813 | mov [esi + TASKDATA.state], 0 ; Running |
||
3556 | hidnplayr | 1814 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_notify: Unblocked socket!\n" |
3545 | hidnplayr | 1815 | |
1816 | .done: |
||
1817 | pop esi ecx eax |
||
1818 | |||
1819 | .error: |
||
1820 | ret |
||
1821 | |||
1822 | |||
1823 | ;-------------------------------------------------------------------- |
||
1824 | ; |
||
1825 | ; SOCKET_alloc |
||
1826 | ; |
||
1827 | ; Allocate memory for socket data and put new socket into the list |
||
1828 | ; Newly created socket is initialized with calling PID and number and |
||
1829 | ; put into beginning of list (which is a fastest way). |
||
1830 | ; |
||
1831 | ; IN: / |
||
1832 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1833 | ; edi = socket number |
||
1834 | ; ZF = cleared on error |
||
1835 | ; |
||
1836 | ;-------------------------------------------------------------------- |
||
1837 | align 4 |
||
1838 | SOCKET_alloc: |
||
1839 | |||
1840 | push ebx |
||
1841 | |||
1842 | stdcall kernel_alloc, SOCKETBUFFSIZE |
||
3556 | hidnplayr | 1843 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: ptr=%x\n", eax |
3545 | hidnplayr | 1844 | or eax, eax |
1845 | jz .exit |
||
1846 | |||
1847 | ; zero-initialize allocated memory |
||
1848 | push eax |
||
1849 | mov edi, eax |
||
1850 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1851 | xor eax, eax |
||
3711 | clevermous | 1852 | rep stosd |
3545 | hidnplayr | 1853 | pop eax |
1854 | |||
1855 | ; set send-and receive procedures to return -1 |
||
3658 | hidnplayr | 1856 | mov [eax + SOCKET.snd_proc], .not_yet |
1857 | mov [eax + SOCKET.rcv_proc], .not_yet |
||
3545 | hidnplayr | 1858 | |
3647 | hidnplayr | 1859 | pusha |
1860 | mov ecx, socket_mutex |
||
1861 | call mutex_lock |
||
1862 | popa |
||
1863 | |||
3545 | hidnplayr | 1864 | ; find first free socket number and use it |
1865 | mov edi, [last_socket_num] |
||
1866 | .next_socket_number: |
||
1867 | inc edi |
||
1868 | jz .next_socket_number ; avoid socket nr 0 |
||
1869 | cmp edi, -1 |
||
1870 | je .next_socket_number ; avoid socket nr -1 |
||
1871 | mov ebx, net_sockets |
||
1872 | .next_socket: |
||
1873 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1874 | test ebx, ebx |
||
1875 | jz .last_socket |
||
1876 | |||
1877 | cmp [ebx + SOCKET.Number], edi |
||
1878 | jne .next_socket |
||
1879 | jmp .next_socket_number |
||
1880 | |||
1881 | .last_socket: |
||
1882 | mov [last_socket_num], edi |
||
1883 | mov [eax + SOCKET.Number], edi |
||
3556 | hidnplayr | 1884 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_alloc: number=%u\n", edi |
3545 | hidnplayr | 1885 | |
1886 | ; Fill in PID |
||
1887 | mov ebx, [TASK_BASE] |
||
1888 | mov ebx, [ebx + TASKDATA.pid] |
||
1889 | mov [eax + SOCKET.PID], ebx |
||
1890 | mov [eax + SOCKET.TID], ebx ; currently TID = PID in kolibrios :( |
||
1891 | |||
1892 | ; init mutex |
||
1893 | pusha |
||
1894 | lea ecx, [eax + SOCKET.mutex] |
||
1895 | call mutex_init |
||
1896 | popa |
||
1897 | |||
1898 | ; add socket to the list by re-arranging some pointers |
||
1899 | mov ebx, [net_sockets + SOCKET.NextPtr] |
||
1900 | |||
1901 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1902 | mov [eax + SOCKET.NextPtr], ebx |
||
1903 | |||
1904 | test ebx, ebx |
||
1905 | jz @f |
||
1906 | |||
1907 | pusha |
||
1908 | lea ecx, [ebx + SOCKET.mutex] |
||
1909 | call mutex_lock |
||
1910 | popa |
||
1911 | |||
1912 | mov [ebx + SOCKET.PrevPtr], eax |
||
1913 | |||
1914 | pusha |
||
1915 | lea ecx, [ebx + SOCKET.mutex] |
||
1916 | call mutex_unlock |
||
1917 | popa |
||
1918 | @@: |
||
1919 | |||
1920 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1921 | or eax, eax ; used to clear zero flag |
||
3647 | hidnplayr | 1922 | |
1923 | pusha |
||
1924 | mov ecx, socket_mutex |
||
1925 | call mutex_unlock |
||
1926 | popa |
||
1927 | |||
3545 | hidnplayr | 1928 | .exit: |
1929 | pop ebx |
||
1930 | |||
1931 | ret |
||
1932 | |||
3658 | hidnplayr | 1933 | .not_yet: |
3673 | hidnplayr | 1934 | mov dword[esp+20], ENOTCONN |
3658 | hidnplayr | 1935 | mov dword[esp+32], -1 |
1936 | ret |
||
3545 | hidnplayr | 1937 | |
3658 | hidnplayr | 1938 | |
3545 | hidnplayr | 1939 | ;---------------------------------------------------- |
1940 | ; |
||
1941 | ; SOCKET_free |
||
1942 | ; |
||
1943 | ; Free socket data memory and remove socket from the list |
||
3884 | hidnplayr | 1944 | ; Caller should lock and unlock socket_mutex |
3545 | hidnplayr | 1945 | ; |
1946 | ; IN: eax = socket ptr |
||
1947 | ; OUT: / |
||
1948 | ; |
||
1949 | ;---------------------------------------------------- |
||
1950 | align 4 |
||
1951 | SOCKET_free: |
||
1952 | |||
3556 | hidnplayr | 1953 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: %x\n", eax |
3545 | hidnplayr | 1954 | |
1955 | call SOCKET_check |
||
1956 | jz .error |
||
1957 | |||
1958 | push ebx |
||
1959 | |||
1960 | pusha |
||
1961 | lea ecx, [eax + SOCKET.mutex] |
||
1962 | call mutex_lock |
||
1963 | popa |
||
1964 | |||
1965 | cmp [eax + SOCKET.Domain], AF_INET4 |
||
1966 | jnz .no_tcp |
||
1967 | |||
1968 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
1969 | jnz .no_tcp |
||
1970 | |||
1971 | mov ebx, eax |
||
1972 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1973 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1974 | mov eax, ebx |
||
1975 | .no_tcp: |
||
1976 | |||
3652 | hidnplayr | 1977 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: freeing socket %x\n", eax |
3545 | hidnplayr | 1978 | push eax ; this will be passed to kernel_free |
1979 | mov ebx, [eax + SOCKET.NextPtr] |
||
1980 | mov eax, [eax + SOCKET.PrevPtr] |
||
1981 | |||
3556 | hidnplayr | 1982 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
3545 | hidnplayr | 1983 | |
1984 | test eax, eax |
||
1985 | jz @f |
||
1986 | mov [eax + SOCKET.NextPtr], ebx |
||
1987 | @@: |
||
1988 | |||
1989 | test ebx, ebx |
||
1990 | jz @f |
||
1991 | mov [ebx + SOCKET.PrevPtr], eax |
||
1992 | @@: |
||
1993 | |||
1994 | call kernel_free |
||
1995 | pop ebx |
||
1996 | |||
3652 | hidnplayr | 1997 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_free: success!\n" |
1998 | |||
1999 | .error: |
||
3545 | hidnplayr | 2000 | ret |
2001 | |||
2002 | ;------------------------------------ |
||
2003 | ; |
||
2004 | ; SOCKET_fork |
||
2005 | ; |
||
2006 | ; Create a child socket |
||
2007 | ; |
||
2008 | ; IN: socket nr in ebx |
||
2009 | ; OUT: child socket nr in eax |
||
2010 | ; |
||
2011 | ;----------------------------------- |
||
2012 | align 4 |
||
2013 | SOCKET_fork: |
||
2014 | |||
3556 | hidnplayr | 2015 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_fork: %x\n", ebx |
3545 | hidnplayr | 2016 | |
2017 | ; Exit if backlog queue is full |
||
2018 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
||
2019 | cmp ax, [ebx + SOCKET.backlog] |
||
2020 | jae .fail |
||
2021 | |||
2022 | ; Allocate new socket |
||
2023 | push ebx |
||
2024 | call SOCKET_alloc |
||
2025 | pop ebx |
||
2026 | jz .fail |
||
2027 | |||
2028 | push eax |
||
2029 | mov esi, esp |
||
2030 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
2031 | pop eax |
||
2032 | |||
2033 | ; Copy structure from current socket to new |
||
3817 | hidnplayr | 2034 | ; We start at PID to preserve the socket num, 2 pointers and mutex |
2035 | ; TID will be filled in later |
||
3545 | hidnplayr | 2036 | lea esi, [ebx + SOCKET.PID] |
2037 | lea edi, [eax + SOCKET.PID] |
||
2038 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
3711 | clevermous | 2039 | rep movsd |
3545 | hidnplayr | 2040 | |
2041 | and [eax + SOCKET.options], not SO_ACCEPTCON |
||
2042 | |||
3817 | hidnplayr | 2043 | ; Notify owner of parent socket |
2044 | push eax |
||
2045 | mov eax, ebx |
||
2046 | call SOCKET_notify |
||
2047 | pop eax |
||
2048 | |||
3545 | hidnplayr | 2049 | ret |
2050 | |||
2051 | .fail2: |
||
2052 | add esp, 4+4+4 |
||
2053 | .fail: |
||
3556 | hidnplayr | 2054 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_fork: failed\n" |
3545 | hidnplayr | 2055 | xor eax, eax |
2056 | ret |
||
2057 | |||
2058 | |||
2059 | ;--------------------------------------------------- |
||
2060 | ; |
||
2061 | ; SOCKET_num_to_ptr |
||
2062 | ; |
||
2063 | ; Get socket structure address by its number |
||
2064 | ; |
||
2065 | ; IN: ecx = socket number |
||
2066 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
2067 | ; ZF = set on error |
||
2068 | ; |
||
2069 | ;--------------------------------------------------- |
||
2070 | align 4 |
||
2071 | SOCKET_num_to_ptr: |
||
2072 | |||
3556 | hidnplayr | 2073 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_num_to_ptr: num=%u ", ecx |
3545 | hidnplayr | 2074 | |
3647 | hidnplayr | 2075 | pusha |
2076 | mov ecx, socket_mutex |
||
2077 | call mutex_lock |
||
2078 | popa |
||
2079 | |||
3545 | hidnplayr | 2080 | mov eax, net_sockets |
2081 | |||
2082 | .next_socket: |
||
2083 | mov eax, [eax + SOCKET.NextPtr] |
||
2084 | or eax, eax |
||
2085 | jz .error |
||
2086 | cmp [eax + SOCKET.Number], ecx |
||
2087 | jne .next_socket |
||
2088 | |||
2089 | test eax, eax |
||
2090 | |||
3647 | hidnplayr | 2091 | pusha |
2092 | mov ecx, socket_mutex |
||
2093 | call mutex_unlock |
||
2094 | popa |
||
2095 | |||
3556 | hidnplayr | 2096 | DEBUGF DEBUG_NETWORK_VERBOSE, "ptr=%x\n", eax |
3545 | hidnplayr | 2097 | ret |
2098 | |||
2099 | .error: |
||
3647 | hidnplayr | 2100 | pusha |
2101 | mov ecx, socket_mutex |
||
2102 | call mutex_unlock |
||
2103 | popa |
||
2104 | |||
3637 | hidnplayr | 2105 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_num_to_ptr: not found\n", eax |
3545 | hidnplayr | 2106 | ret |
2107 | |||
2108 | |||
2109 | ;--------------------------------------------------- |
||
2110 | ; |
||
2111 | ; SOCKET_ptr_to_num |
||
2112 | ; |
||
2113 | ; Get socket number by its address |
||
2114 | ; |
||
2115 | ; IN: eax = socket ptr |
||
2116 | ; OUT: eax = 0 on error, socket num otherwise |
||
2117 | ; ZF = set on error |
||
2118 | ; |
||
2119 | ;--------------------------------------------------- |
||
2120 | align 4 |
||
2121 | SOCKET_ptr_to_num: |
||
2122 | |||
3556 | hidnplayr | 2123 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_ptr_to_num: ptr=%x ", eax |
3545 | hidnplayr | 2124 | |
2125 | call SOCKET_check |
||
2126 | jz .error |
||
2127 | |||
2128 | mov eax, [eax + SOCKET.Number] |
||
2129 | |||
3556 | hidnplayr | 2130 | DEBUGF DEBUG_NETWORK_VERBOSE, "num=%u\n", eax |
3545 | hidnplayr | 2131 | ret |
2132 | |||
2133 | .error: |
||
3556 | hidnplayr | 2134 | DEBUGF DEBUG_NETWORK_ERROR, "SOCKET_ptr_to_num: not found\n", eax |
3545 | hidnplayr | 2135 | ret |
2136 | |||
2137 | |||
2138 | ;--------------------------------------------------- |
||
2139 | ; |
||
2140 | ; SOCKET_check |
||
2141 | ; |
||
2142 | ; checks if the given value is really a socket ptr |
||
2143 | ; |
||
2144 | ; IN: eax = socket ptr |
||
2145 | ; OUT: eax = 0 on error, unchanged otherwise |
||
2146 | ; ZF = set on error |
||
2147 | ; |
||
2148 | ;--------------------------------------------------- |
||
2149 | align 4 |
||
2150 | SOCKET_check: |
||
2151 | |||
3556 | hidnplayr | 2152 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check: %x\n", eax |
3545 | hidnplayr | 2153 | |
2154 | push ebx |
||
2155 | mov ebx, net_sockets |
||
2156 | |||
2157 | .next_socket: |
||
2158 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2159 | or ebx, ebx |
||
2160 | jz .done |
||
2161 | cmp ebx, eax |
||
2162 | jnz .next_socket |
||
2163 | |||
2164 | .done: |
||
2165 | mov eax, ebx |
||
2166 | test eax, eax |
||
2167 | pop ebx |
||
2168 | |||
2169 | ret |
||
2170 | |||
2171 | |||
2172 | |||
2173 | ;--------------------------------------------------- |
||
2174 | ; |
||
2175 | ; SOCKET_check_owner |
||
2176 | ; |
||
2177 | ; checks if the caller application owns the socket |
||
2178 | ; |
||
2179 | ; IN: eax = socket ptr |
||
2180 | ; OUT: ZF = true/false |
||
2181 | ; |
||
2182 | ;--------------------------------------------------- |
||
2183 | align 4 |
||
2184 | SOCKET_check_owner: |
||
2185 | |||
3556 | hidnplayr | 2186 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_check_owner: %x\n", eax |
3545 | hidnplayr | 2187 | |
2188 | push ebx |
||
2189 | mov ebx, [TASK_BASE] |
||
2190 | mov ebx, [ebx + TASKDATA.pid] |
||
2191 | cmp [eax + SOCKET.PID], ebx |
||
3711 | clevermous | 2192 | pop ebx |
3545 | hidnplayr | 2193 | |
2194 | ret |
||
2195 | |||
2196 | |||
2197 | |||
2198 | |||
2199 | ;------------------------------------------------------ |
||
2200 | ; |
||
2201 | ; SOCKET_process_end |
||
2202 | ; |
||
2203 | ; Kernel calls this function when a certain process ends |
||
2204 | ; This function will check if the process had any open sockets |
||
2205 | ; And update them accordingly |
||
2206 | ; |
||
2207 | ; IN: edx = pid |
||
2208 | ; OUT: / |
||
2209 | ; |
||
2210 | ;------------------------------------------------------ |
||
2211 | align 4 |
||
2212 | SOCKET_process_end: |
||
2213 | |||
3556 | hidnplayr | 2214 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: %x\n", edx |
3545 | hidnplayr | 2215 | |
3647 | hidnplayr | 2216 | pusha |
2217 | mov ecx, socket_mutex |
||
2218 | call mutex_lock |
||
2219 | popa |
||
2220 | |||
3545 | hidnplayr | 2221 | push ebx |
2222 | mov ebx, net_sockets |
||
2223 | |||
2224 | .next_socket: |
||
2225 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2226 | .next_socket_test: |
||
2227 | test ebx, ebx |
||
2228 | jz .done |
||
2229 | |||
2230 | cmp [ebx + SOCKET.PID], edx |
||
2231 | jne .next_socket |
||
2232 | |||
3556 | hidnplayr | 2233 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_process_end: killing socket %x\n", ebx |
3545 | hidnplayr | 2234 | |
2235 | mov [ebx + SOCKET.PID], 0 |
||
2236 | mov eax, ebx |
||
2237 | mov ebx, [ebx + SOCKET.NextPtr] |
||
3648 | hidnplayr | 2238 | |
3545 | hidnplayr | 2239 | pusha |
3652 | hidnplayr | 2240 | cmp [eax + SOCKET.Domain], AF_INET4 |
2241 | jne .free |
||
2242 | |||
2243 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
2244 | jne .free |
||
2245 | |||
2246 | call TCP_close |
||
2247 | jmp .closed |
||
2248 | |||
2249 | .free: |
||
2250 | call SOCKET_free |
||
2251 | |||
2252 | .closed: |
||
3545 | hidnplayr | 2253 | popa |
2254 | jmp .next_socket_test |
||
2255 | |||
2256 | .done: |
||
2257 | pop ebx |
||
2258 | |||
3647 | hidnplayr | 2259 | pusha |
2260 | mov ecx, socket_mutex |
||
2261 | call mutex_unlock |
||
2262 | popa |
||
2263 | |||
3545 | hidnplayr | 2264 | ret |
2265 | |||
2266 | |||
2267 | |||
2268 | |||
2269 | ;----------------------------------------------------------------- |
||
2270 | ; |
||
2271 | ; SOCKET_is_connecting |
||
2272 | ; |
||
2273 | ; IN: eax = socket ptr |
||
2274 | ; OUT: / |
||
2275 | ; |
||
2276 | ;----------------------------------------------------------------- |
||
2277 | |||
2278 | align 4 |
||
2279 | SOCKET_is_connecting: |
||
2280 | |||
3556 | hidnplayr | 2281 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connecting: %x\n", eax |
3545 | hidnplayr | 2282 | |
4025 | hidnplayr | 2283 | and [eax + SOCKET.state], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
2284 | or [eax + SOCKET.state], SS_ISCONNECTING |
||
3545 | hidnplayr | 2285 | |
4025 | hidnplayr | 2286 | ret |
3545 | hidnplayr | 2287 | |
2288 | |||
2289 | |||
2290 | ;----------------------------------------------------------------- |
||
2291 | ; |
||
2292 | ; SOCKET_is_connected |
||
2293 | ; |
||
2294 | ; IN: eax = socket ptr |
||
2295 | ; OUT: / |
||
2296 | ; |
||
2297 | ;----------------------------------------------------------------- |
||
2298 | |||
2299 | align 4 |
||
2300 | SOCKET_is_connected: |
||
2301 | |||
3556 | hidnplayr | 2302 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_connected: %x\n", eax |
3545 | hidnplayr | 2303 | |
3674 | hidnplayr | 2304 | and [eax + SOCKET.state], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
2305 | or [eax + SOCKET.state], SS_ISCONNECTED |
||
3545 | hidnplayr | 2306 | |
2307 | jmp SOCKET_notify |
||
2308 | |||
2309 | |||
2310 | |||
2311 | |||
2312 | ;----------------------------------------------------------------- |
||
2313 | ; |
||
2314 | ; SOCKET_is_disconnecting |
||
2315 | ; |
||
2316 | ; IN: eax = socket ptr |
||
2317 | ; OUT: / |
||
2318 | ; |
||
2319 | ;----------------------------------------------------------------- |
||
2320 | |||
2321 | align 4 |
||
2322 | SOCKET_is_disconnecting: |
||
2323 | |||
3556 | hidnplayr | 2324 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnecting: %x\n", eax |
3545 | hidnplayr | 2325 | |
3674 | hidnplayr | 2326 | and [eax + SOCKET.state], not (SS_ISCONNECTING) |
2327 | or [eax + SOCKET.state], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
3545 | hidnplayr | 2328 | |
2329 | jmp SOCKET_notify |
||
2330 | |||
2331 | |||
2332 | |||
2333 | ;----------------------------------------------------------------- |
||
2334 | ; |
||
2335 | ; SOCKET_is_disconnected |
||
2336 | ; |
||
2337 | ; IN: eax = socket ptr |
||
2338 | ; OUT: / |
||
2339 | ; |
||
2340 | ;----------------------------------------------------------------- |
||
2341 | |||
2342 | align 4 |
||
2343 | SOCKET_is_disconnected: |
||
2344 | |||
3556 | hidnplayr | 2345 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_is_disconnected: %x\n", eax |
3545 | hidnplayr | 2346 | |
3674 | hidnplayr | 2347 | and [eax + SOCKET.state], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
2348 | or [eax + SOCKET.state], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
3545 | hidnplayr | 2349 | |
2350 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
||
2351 | je .tcp |
||
2352 | |||
2353 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
||
2354 | je .udp |
||
2355 | |||
2356 | jmp SOCKET_notify |
||
2357 | |||
2358 | .tcp: |
||
2359 | .udp: |
||
2360 | mov [eax + UDP_SOCKET.LocalPort], 0 ; UDP and TCP structs store localport at the same offset |
||
2361 | mov [eax + UDP_SOCKET.RemotePort], 0 |
||
2362 | |||
2363 | jmp SOCKET_notify |
||
2364 | |||
2365 | |||
2366 | ;----------------------------------------------------------------- |
||
2367 | ; |
||
2368 | ; SOCKET_cant_recv_more |
||
2369 | ; |
||
2370 | ; IN: eax = socket ptr |
||
2371 | ; OUT: / |
||
2372 | ; |
||
2373 | ;----------------------------------------------------------------- |
||
2374 | |||
2375 | align 4 |
||
2376 | SOCKET_cant_recv_more: |
||
2377 | |||
3556 | hidnplayr | 2378 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_recv_more: %x\n", eax |
3545 | hidnplayr | 2379 | |
3674 | hidnplayr | 2380 | or [eax + SOCKET.state], SS_CANTRCVMORE |
3545 | hidnplayr | 2381 | |
3565 | hidnplayr | 2382 | call SOCKET_notify |
2383 | |||
3545 | hidnplayr | 2384 | ret |
2385 | |||
2386 | |||
2387 | |||
2388 | ;----------------------------------------------------------------- |
||
2389 | ; |
||
2390 | ; SOCKET_cant_send_more |
||
2391 | ; |
||
2392 | ; IN: eax = socket ptr |
||
2393 | ; OUT: / |
||
2394 | ; |
||
2395 | ;----------------------------------------------------------------- |
||
2396 | |||
2397 | align 4 |
||
2398 | SOCKET_cant_send_more: |
||
2399 | |||
3556 | hidnplayr | 2400 | DEBUGF DEBUG_NETWORK_VERBOSE, "SOCKET_cant_send_more: %x\n", eax |
3545 | hidnplayr | 2401 | |
3674 | hidnplayr | 2402 | or [eax + SOCKET.state], SS_CANTSENDMORE |
3658 | hidnplayr | 2403 | mov [eax + SOCKET.snd_proc], .notconn |
3545 | hidnplayr | 2404 | |
3565 | hidnplayr | 2405 | call SOCKET_notify |
2406 | |||
3658 | hidnplayr | 2407 | ret |
2408 | |||
2409 | .notconn: |
||
3673 | hidnplayr | 2410 | mov dword[esp+20], ENOTCONN |
3658 | hidnplayr | 2411 | mov dword[esp+32], -1 |
3545 | hidnplayr | 2412 | ret |