Rev 1519 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1514 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; SOCKET.INC ;; |
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7 | ;; ;; |
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1529 | hidnplayr | 8 | ;; Written by hidnplayr@kolibrios.org, ;; |
9 | ;; and Clevermouse. ;; |
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1159 | hidnplayr | 10 | ;; ;; |
1529 | hidnplayr | 11 | ;; Based on code by mike.dld ;; |
1159 | hidnplayr | 12 | ;; ;; |
1529 | hidnplayr | 13 | ;; GNU GENERAL PUBLIC LICENSE ;; |
14 | ;; Version 2, June 1991 ;; |
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15 | ;; ;; |
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1159 | hidnplayr | 16 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
17 | |||
1206 | hidnplayr | 18 | $Revision: 1529 $ |
1159 | hidnplayr | 19 | |
1514 | hidnplayr | 20 | virtual at 0 |
1249 | hidnplayr | 21 | |
1514 | hidnplayr | 22 | SOCKET: |
23 | .NextPtr dd ? ; pointer to next socket in list |
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24 | .PrevPtr dd ? ; pointer to previous socket in list |
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25 | .Number dd ? ; socket number |
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1249 | hidnplayr | 26 | |
1514 | hidnplayr | 27 | .lock dd ? ; lock mutex |
1249 | hidnplayr | 28 | |
1514 | hidnplayr | 29 | .PID dd ? ; application process id |
30 | .Domain dd ? ; INET/UNIX/.. |
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31 | .Type dd ? ; RAW/UDP/TCP/... |
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32 | .Protocol dd ? ; ICMP/IPv4/ARP/ |
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33 | .errorcode dd ? |
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1249 | hidnplayr | 34 | |
1514 | hidnplayr | 35 | .options dd ? |
1529 | hidnplayr | 36 | .state dd ? |
1249 | hidnplayr | 37 | |
1514 | hidnplayr | 38 | .end: |
39 | end virtual |
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1249 | hidnplayr | 40 | |
1514 | hidnplayr | 41 | virtual at SOCKET.end |
1254 | hidnplayr | 42 | |
1514 | hidnplayr | 43 | IP_SOCKET: |
1318 | hidnplayr | 44 | |
1514 | hidnplayr | 45 | .LocalIP dd ? |
46 | rd 3 ; for IPv6 addresses |
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1249 | hidnplayr | 47 | |
1514 | hidnplayr | 48 | .RemoteIP dd ? |
49 | rd 3 ; for IPv6 addresses |
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1249 | hidnplayr | 50 | |
1514 | hidnplayr | 51 | .end: |
52 | end virtual |
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1159 | hidnplayr | 53 | |
1514 | hidnplayr | 54 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 55 | |
1514 | hidnplayr | 56 | TCP_SOCKET: |
57 | |||
58 | .LocalPort dw ? ; In INET byte order |
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59 | .RemotePort dw ? ; In INET byte order |
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60 | |||
61 | .backlog dw ? ; Backlog |
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62 | .backlog_cur dw ? ; current size of queue for un-accept-ed connections |
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63 | |||
64 | .OrigRemoteIP dd ? ; original remote IP address (used to reset to LISTEN state) |
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65 | .OrigRemotePort dw ? ; original remote port (used to reset to LISTEN state) |
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66 | |||
67 | .t_state dd ? ; TCB state |
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68 | .t_rxtshift dd ? |
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69 | .t_rxtcur dd ? |
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70 | .t_dupacks dd ? |
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71 | .t_maxseg dd ? |
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72 | .t_force dd ? |
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73 | .t_flags dd ? |
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74 | |||
75 | ;--------------- |
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76 | ; RFC783 page 21 |
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77 | |||
78 | ; send sequence |
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79 | .SND_UNA dd ? ; sequence number of unack'ed sent Packets |
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80 | .SND_NXT dd ? ; next send sequence number to use |
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81 | .SND_UP dd ? |
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82 | .SND_WL1 dd ? ; window minus one |
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83 | .SND_WL2 dd ? ; |
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84 | .ISS dd ? ; initial send sequence number |
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85 | .SND_WND dd ? ; send window |
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86 | |||
87 | ; receive sequence |
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88 | .RCV_WND dw ? ; receive window |
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89 | .RCV_NXT dd ? ; next receive sequence number to use |
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90 | .RCV_UP dd ? |
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91 | .IRS dd ? ; initial receive sequence number |
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92 | |||
93 | ;--------------------- |
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94 | ; Additional variables |
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95 | |||
96 | ; receive variables |
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97 | .RCV_ADV dd ? |
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98 | |||
99 | ; retransmit variables |
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100 | .SND_MAX dd ? |
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101 | |||
102 | ; congestion control |
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103 | .SND_CWND dd ? |
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104 | .SND_SSTHRESH dd ? |
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105 | |||
106 | ;---------------------- |
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107 | ; Transmit timing stuff |
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108 | .t_idle dd ? |
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109 | .t_rtt dd ? |
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110 | .t_rtseq dd ? |
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111 | .t_srtt dd ? |
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112 | .t_rttvar dd ? |
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113 | .t_rttmin dd ? |
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114 | .max_sndwnd dd ? |
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115 | |||
116 | ;----------------- |
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117 | ; Out-of-band data |
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118 | .t_oobflags dd ? |
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119 | .t_iobc dd ? |
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120 | .t_softerror dd ? |
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121 | |||
122 | |||
123 | ;--------- |
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124 | ; RFC 1323 |
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125 | .SND_SCALE db ? ; Scale factor |
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126 | .RCV_SCALE db ? |
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127 | .request_r_scale db ? |
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128 | .requested_s_scale dd ? |
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129 | |||
130 | .ts_recent dd ? |
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131 | .ts_recent_age dd ? |
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132 | .last_ack_sent dd ? |
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133 | |||
1519 | hidnplayr | 134 | |
135 | ;------- |
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136 | ; Timers |
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1529 | hidnplayr | 137 | .timer_retransmission dw ? ; rexmt |
1519 | hidnplayr | 138 | .timer_ack dw ? |
139 | .timer_persist dw ? |
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1529 | hidnplayr | 140 | .timer_keepalive dw ? ; keepalive/syn timeout |
141 | .timer_timed_wait dw ? ; also used as 2msl timer |
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1519 | hidnplayr | 142 | |
1249 | hidnplayr | 143 | .end: |
1514 | hidnplayr | 144 | end virtual |
1249 | hidnplayr | 145 | |
1514 | hidnplayr | 146 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 147 | |
1514 | hidnplayr | 148 | UDP_SOCKET: |
1249 | hidnplayr | 149 | |
1514 | hidnplayr | 150 | .LocalPort dw ? ; In INET byte order |
151 | .RemotePort dw ? ; In INET byte order |
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152 | .firstpacket db ? |
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1249 | hidnplayr | 153 | |
154 | .end: |
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1514 | hidnplayr | 155 | end virtual |
1249 | hidnplayr | 156 | |
1514 | hidnplayr | 157 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 158 | |
1514 | hidnplayr | 159 | ICMP_SOCKET: |
160 | |||
161 | .Identifier dw ? ; |
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162 | |||
163 | .end: |
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164 | end virtual |
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165 | |||
1529 | hidnplayr | 166 | struc RING_BUFFER { |
167 | .start_ptr dd ? ; Pointer to start of buffer |
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168 | .end_ptr dd ? ; pointer to end of buffer |
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169 | .read_ptr dd ? ; Read pointer |
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170 | .write_ptr dd ? ; Write pointer |
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171 | .size dd ? ; Number of bytes buffered |
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172 | } |
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1514 | hidnplayr | 173 | |
1529 | hidnplayr | 174 | virtual at 0 |
175 | |||
176 | RING_BUFFER RING_BUFFER |
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177 | |||
178 | end virtual |
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179 | |||
180 | virtual at TCP_SOCKET.end |
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181 | |||
182 | rcv RING_BUFFER |
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183 | snd RING_BUFFER |
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184 | |||
185 | STREAM_SOCKET: |
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186 | .end: |
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187 | |||
188 | end virtual |
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189 | |||
190 | |||
1274 | hidnplayr | 191 | struct socket_queue_entry |
192 | .data_ptr dd ? |
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1514 | hidnplayr | 193 | .buf_ptr dd ? |
1274 | hidnplayr | 194 | .data_size dd ? |
195 | .size: |
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196 | ends |
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197 | |||
1514 | hidnplayr | 198 | |
1249 | hidnplayr | 199 | SOCKETBUFFSIZE equ 4096 ; in bytes |
1514 | hidnplayr | 200 | |
1249 | hidnplayr | 201 | SOCKET_QUEUE_SIZE equ 10 ; maximum number ofincoming packets queued for 1 socket |
1514 | hidnplayr | 202 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
203 | SOCKET_QUEUE_LOCATION equ SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*socket_queue_entry.size - queue.data |
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1249 | hidnplayr | 204 | |
1159 | hidnplayr | 205 | uglobal |
1514 | hidnplayr | 206 | net_sockets rd 4 |
1159 | hidnplayr | 207 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
208 | last_TCP_port dw ? ; |
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209 | endg |
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210 | |||
211 | |||
1257 | hidnplayr | 212 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 213 | ; |
214 | ; SOCKET_init |
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215 | ; |
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1257 | hidnplayr | 216 | ;----------------------------------------------------------------- |
1529 | hidnplayr | 217 | macro SOCKET_init { |
1159 | hidnplayr | 218 | |
1514 | hidnplayr | 219 | xor eax, eax |
220 | mov edi, net_sockets |
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221 | mov ecx, 4 |
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222 | rep stosd |
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1159 | hidnplayr | 223 | |
1529 | hidnplayr | 224 | ;--- for random port -- |
1159 | hidnplayr | 225 | |
1529 | hidnplayr | 226 | mov al, 0x0 ; set up 1s timer |
227 | out 0x70, al |
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228 | in al, 0x71 |
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1159 | hidnplayr | 229 | |
1529 | hidnplayr | 230 | ;---------------------- |
1159 | hidnplayr | 231 | |
1529 | hidnplayr | 232 | @@: |
233 | pseudo_random eax |
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234 | cmp ax, MIN_EPHEMERAL_PORT |
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235 | jl @r |
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236 | cmp ax, MAX_EPHEMERAL_PORT |
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237 | jg @r |
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238 | |||
239 | mov [last_UDP_port], ax |
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240 | |||
241 | @@: |
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242 | pseudo_random eax |
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243 | cmp ax, MIN_EPHEMERAL_PORT |
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244 | jl @r |
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245 | cmp ax, MAX_EPHEMERAL_PORT |
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246 | jg @r |
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247 | |||
248 | mov [last_TCP_port], ax |
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249 | |||
250 | } |
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251 | |||
252 | |||
1257 | hidnplayr | 253 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 254 | ; |
255 | ; Socket API (function 74) |
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256 | ; |
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1257 | hidnplayr | 257 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 258 | align 4 |
259 | sys_socket: |
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1514 | hidnplayr | 260 | cmp ebx, 8 ; highest possible number |
1529 | hidnplayr | 261 | jg @f |
262 | lea ebx, [sock_sysfn_table + 4*ebx] |
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1254 | hidnplayr | 263 | jmp dword [ebx] |
1529 | hidnplayr | 264 | @@: |
265 | cmp ebx, 255 |
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266 | jz SOCKET_debug |
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1159 | hidnplayr | 267 | |
1529 | hidnplayr | 268 | s_error: |
269 | DEBUGF 1,"socket error\n" |
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270 | mov dword [esp+32], -1 |
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271 | |||
272 | ret |
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273 | |||
274 | sock_sysfn_table: |
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1514 | hidnplayr | 275 | dd SOCKET_open ; 0 |
276 | dd SOCKET_close ; 1 |
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277 | dd SOCKET_bind ; 2 |
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278 | dd SOCKET_listen ; 3 |
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279 | dd SOCKET_connect ; 4 |
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280 | dd SOCKET_accept ; 5 |
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281 | dd SOCKET_send ; 6 |
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282 | dd SOCKET_receive ; 7 |
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283 | dd SOCKET_get_opt ; 8 |
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284 | ; dd SOCKET_set_opt ; 9 |
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1159 | hidnplayr | 285 | |
1254 | hidnplayr | 286 | |
1159 | hidnplayr | 287 | |
1257 | hidnplayr | 288 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 289 | ; |
290 | ; SOCKET_open |
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291 | ; |
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292 | ; IN: domain in ecx |
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293 | ; type in edx |
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1196 | hidnplayr | 294 | ; protocol in esi |
1159 | hidnplayr | 295 | ; OUT: eax is socket num, -1 on error |
296 | ; |
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1257 | hidnplayr | 297 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 298 | align 4 |
1514 | hidnplayr | 299 | SOCKET_open: |
1159 | hidnplayr | 300 | |
1514 | hidnplayr | 301 | DEBUGF 1,"socket_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi |
1159 | hidnplayr | 302 | |
1514 | hidnplayr | 303 | call SOCKET_alloc |
1185 | hidnplayr | 304 | jz s_error |
1159 | hidnplayr | 305 | |
1514 | hidnplayr | 306 | mov [eax + SOCKET.Domain], ecx |
307 | mov [eax + SOCKET.Type], edx |
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308 | mov [eax + SOCKET.Protocol], esi |
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1159 | hidnplayr | 309 | |
1514 | hidnplayr | 310 | mov [esp+32], edi |
1318 | hidnplayr | 311 | |
1529 | hidnplayr | 312 | cmp ecx, AF_INET4 |
313 | jnz .no_stream |
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314 | |||
315 | push [IP_LIST] ;;;; |
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316 | pop [eax + IP_SOCKET.LocalIP] ;;;; |
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317 | |||
318 | cmp edx, IP_PROTO_TCP |
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319 | jnz .no_stream |
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320 | |||
321 | mov esi, eax |
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322 | stdcall kernel_alloc, SOCKET_MAXDATA |
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323 | mov [esi + rcv.start_ptr], eax |
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324 | mov [esi + rcv.write_ptr], eax |
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325 | mov [esi + rcv.read_ptr], eax |
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326 | mov [esi + rcv.size], 0 |
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327 | add eax, SOCKET_MAXDATA |
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328 | mov [esi + rcv.end_ptr], eax |
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329 | |||
330 | stdcall kernel_alloc, SOCKET_MAXDATA |
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331 | mov [esi + snd.start_ptr], eax |
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332 | mov [esi + snd.write_ptr], eax |
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333 | mov [esi + snd.read_ptr], eax |
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334 | mov [esi + snd.size], 0 |
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335 | add eax, SOCKET_MAXDATA |
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336 | mov [esi + snd.end_ptr], eax |
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337 | |||
1159 | hidnplayr | 338 | ret |
339 | |||
1529 | hidnplayr | 340 | .no_stream: |
1159 | hidnplayr | 341 | |
1529 | hidnplayr | 342 | push edi |
343 | init_queue (eax + SOCKET_QUEUE_LOCATION) |
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344 | pop edi |
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1159 | hidnplayr | 345 | |
1529 | hidnplayr | 346 | ret |
347 | |||
348 | |||
349 | |||
1257 | hidnplayr | 350 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 351 | ; |
352 | ; SOCKET_bind |
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353 | ; |
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354 | ; IN: socket number in ecx |
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355 | ; pointer to sockaddr struct in edx |
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356 | ; length of that struct in esi |
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357 | ; OUT: 0 on success |
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358 | ; |
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1257 | hidnplayr | 359 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 360 | align 4 |
1514 | hidnplayr | 361 | SOCKET_bind: |
1159 | hidnplayr | 362 | |
1514 | hidnplayr | 363 | DEBUGF 1,"socket_bind: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 364 | |
1514 | hidnplayr | 365 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 366 | jz s_error |
1159 | hidnplayr | 367 | |
368 | cmp esi, 2 |
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1185 | hidnplayr | 369 | jl s_error |
1159 | hidnplayr | 370 | |
371 | cmp word [edx], AF_INET4 |
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1249 | hidnplayr | 372 | je .af_inet4 |
1159 | hidnplayr | 373 | |
1249 | hidnplayr | 374 | cmp word [edx], AF_UNIX |
375 | je .af_unix |
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376 | |||
377 | jmp s_error |
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378 | |||
379 | .af_unix: |
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380 | |||
381 | ; TODO: write code here |
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382 | |||
1514 | hidnplayr | 383 | mov dword [esp+32], 0 |
1249 | hidnplayr | 384 | ret |
385 | |||
1159 | hidnplayr | 386 | .af_inet4: |
387 | |||
1514 | hidnplayr | 388 | DEBUGF 1,"af_inet4\n" |
389 | |||
1159 | hidnplayr | 390 | cmp esi, 6 |
1185 | hidnplayr | 391 | jl s_error |
1159 | hidnplayr | 392 | |
1514 | hidnplayr | 393 | mov ecx, [eax + SOCKET.Type] |
1249 | hidnplayr | 394 | |
1159 | hidnplayr | 395 | mov bx, word [edx + 2] |
396 | test bx, bx |
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1206 | hidnplayr | 397 | jz .find_free |
1159 | hidnplayr | 398 | |
1514 | hidnplayr | 399 | call SOCKET_check_port |
400 | ; test bx, bx |
||
401 | jz s_error |
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1206 | hidnplayr | 402 | jmp .got_port |
1159 | hidnplayr | 403 | |
1249 | hidnplayr | 404 | .find_free: |
1514 | hidnplayr | 405 | call SOCKET_find_port |
406 | ; test bx, bx |
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407 | jz s_error |
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1159 | hidnplayr | 408 | |
1249 | hidnplayr | 409 | .got_port: |
1519 | hidnplayr | 410 | DEBUGF 1,"using local port: %u\n", bx |
1514 | hidnplayr | 411 | mov word [eax + UDP_SOCKET.LocalPort], bx |
1159 | hidnplayr | 412 | |
413 | DEBUGF 1,"local ip: %u.%u.%u.%u\n",\ |
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1514 | hidnplayr | 414 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
415 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 416 | |
1514 | hidnplayr | 417 | mov dword [esp+32], 0 |
1159 | hidnplayr | 418 | ret |
419 | |||
420 | |||
421 | |||
422 | |||
1257 | hidnplayr | 423 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 424 | ; |
425 | ; SOCKET_connect |
||
426 | ; |
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427 | ; IN: socket number in ecx |
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428 | ; pointer to sockaddr struct in edx |
||
429 | ; length of that struct in esi |
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430 | ; OUT: 0 on success |
||
431 | ; |
||
1257 | hidnplayr | 432 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 433 | align 4 |
1514 | hidnplayr | 434 | SOCKET_connect: |
1159 | hidnplayr | 435 | |
1514 | hidnplayr | 436 | DEBUGF 1,"socket_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 437 | |
1514 | hidnplayr | 438 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 439 | jz s_error |
1159 | hidnplayr | 440 | |
1254 | hidnplayr | 441 | cmp esi, 8 |
1185 | hidnplayr | 442 | jl s_error |
1159 | hidnplayr | 443 | |
444 | cmp word [edx], AF_INET4 |
||
445 | je .af_inet4 |
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446 | |||
1185 | hidnplayr | 447 | jmp s_error |
1159 | hidnplayr | 448 | |
449 | .af_inet4: |
||
450 | |||
1514 | hidnplayr | 451 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
1159 | hidnplayr | 452 | je .udp |
453 | |||
1514 | hidnplayr | 454 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 455 | je .tcp |
1159 | hidnplayr | 456 | |
1185 | hidnplayr | 457 | jmp s_error |
1159 | hidnplayr | 458 | |
1254 | hidnplayr | 459 | .udp: |
1159 | hidnplayr | 460 | mov bx , word [edx + 2] |
1514 | hidnplayr | 461 | mov word [eax + UDP_SOCKET.RemotePort], bx |
462 | mov [eax + UDP_SOCKET.firstpacket], 0 |
||
1519 | hidnplayr | 463 | DEBUGF 1,"remote port: %u\n",bx |
1159 | hidnplayr | 464 | |
465 | mov ebx, dword [edx + 4] |
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1514 | hidnplayr | 466 | mov dword [eax + IP_SOCKET.RemoteIP], ebx |
1159 | hidnplayr | 467 | DEBUGF 1,"remote ip: %u.%u.%u.%u\n",[edx+4]:1,[edx+5]:1,[edx+6]:1,[edx+7]:1 |
468 | |||
1514 | hidnplayr | 469 | mov dword [esp+32], 0 |
1159 | hidnplayr | 470 | ret |
471 | |||
472 | |||
1254 | hidnplayr | 473 | .tcp: |
1514 | hidnplayr | 474 | lea ebx, [eax + SOCKET.lock] |
1281 | hidnplayr | 475 | call wait_mutex |
1159 | hidnplayr | 476 | |
1254 | hidnplayr | 477 | ; fill in remote port and IP |
1159 | hidnplayr | 478 | |
1254 | hidnplayr | 479 | mov bx , word [edx + 2] |
1514 | hidnplayr | 480 | mov [eax + TCP_SOCKET.RemotePort], bx |
1519 | hidnplayr | 481 | DEBUGF 1,"remote port: %u\n", bx |
1159 | hidnplayr | 482 | |
1254 | hidnplayr | 483 | mov ebx, dword [edx + 4] |
1514 | hidnplayr | 484 | mov [eax + IP_SOCKET.RemoteIP], ebx |
1159 | hidnplayr | 485 | |
1254 | hidnplayr | 486 | ; check if local port and IP is ok |
1159 | hidnplayr | 487 | |
1514 | hidnplayr | 488 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
1254 | hidnplayr | 489 | jne @f |
1514 | hidnplayr | 490 | call SOCKET_find_port |
1254 | hidnplayr | 491 | @@: |
1529 | hidnplayr | 492 | DEBUGF 1,"local port: %u\n", [eax + TCP_SOCKET.LocalPort]:2 |
1159 | hidnplayr | 493 | |
1529 | hidnplayr | 494 | ;;;;; |
495 | mov [eax + TCP_SOCKET.timer_persist], 0 |
||
496 | mov [eax + TCP_SOCKET.t_state], TCB_SYN_SENT |
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497 | mov ebx, [TCP_sequence_num] |
||
498 | add [TCP_sequence_num], 6400 |
||
499 | mov [eax + TCP_SOCKET.ISS], ebx |
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500 | mov [eax + TCP_SOCKET.timer_keepalive], 120 ; 120*640ms => 75,6 seconds |
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1519 | hidnplayr | 501 | |
1529 | hidnplayr | 502 | ;;;; mov [ebx + TCP_SOCKET.timer_retransmission], |
503 | |||
504 | push eax |
||
1514 | hidnplayr | 505 | call TCP_output |
1529 | hidnplayr | 506 | pop eax |
1159 | hidnplayr | 507 | |
1514 | hidnplayr | 508 | mov [eax + SOCKET.lock], 0 |
1159 | hidnplayr | 509 | |
1514 | hidnplayr | 510 | mov dword [esp+32], 0 ; success! |
1159 | hidnplayr | 511 | ret |
512 | |||
513 | |||
1257 | hidnplayr | 514 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 515 | ; |
516 | ; SOCKET_listen |
||
517 | ; |
||
518 | ; IN: socket number in ecx |
||
519 | ; backlog in edx |
||
520 | ; OUT: eax is socket num, -1 on error |
||
521 | ; |
||
1257 | hidnplayr | 522 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 523 | align 4 |
1514 | hidnplayr | 524 | SOCKET_listen: |
1159 | hidnplayr | 525 | |
1514 | hidnplayr | 526 | DEBUGF 1,"Socket_listen: socknum: %u backlog: %u\n", ecx, edx |
1159 | hidnplayr | 527 | |
1514 | hidnplayr | 528 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 529 | jz s_error |
1159 | hidnplayr | 530 | |
1514 | hidnplayr | 531 | cmp word [eax + SOCKET.Domain], AF_INET4 |
1254 | hidnplayr | 532 | jne s_error |
533 | |||
1514 | hidnplayr | 534 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1254 | hidnplayr | 535 | jne s_error |
536 | |||
1514 | hidnplayr | 537 | ; TODO: check local port number |
538 | |||
1159 | hidnplayr | 539 | cmp edx, MAX_backlog |
1514 | hidnplayr | 540 | jle .ok |
541 | mov edx, MAX_backlog |
||
1159 | hidnplayr | 542 | .ok: |
543 | |||
1514 | hidnplayr | 544 | mov [eax + TCP_SOCKET.backlog], dx |
545 | mov [eax + TCP_SOCKET.t_state], TCB_LISTEN |
||
546 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
1159 | hidnplayr | 547 | |
548 | mov dword [esp+32], 0 |
||
1514 | hidnplayr | 549 | |
1159 | hidnplayr | 550 | ret |
551 | |||
552 | |||
1257 | hidnplayr | 553 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 554 | ; |
555 | ; SOCKET_accept |
||
556 | ; |
||
557 | ; IN: socket number in ecx |
||
558 | ; addr in edx |
||
559 | ; addrlen in esi |
||
560 | ; OUT: eax is socket num, -1 on error |
||
561 | ; |
||
1257 | hidnplayr | 562 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 563 | align 4 |
1514 | hidnplayr | 564 | SOCKET_accept: |
1159 | hidnplayr | 565 | |
1514 | hidnplayr | 566 | DEBUGF 1,"Socket_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 567 | |
1514 | hidnplayr | 568 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 569 | jz s_error |
1159 | hidnplayr | 570 | |
1514 | hidnplayr | 571 | cmp word [eax + SOCKET.Domain], AF_INET4 |
1249 | hidnplayr | 572 | je .af_inet4 |
573 | |||
574 | jmp s_error |
||
575 | |||
576 | .af_inet4: |
||
577 | |||
1514 | hidnplayr | 578 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1249 | hidnplayr | 579 | je .tcp |
580 | |||
581 | jmp s_error |
||
582 | |||
583 | .tcp: |
||
584 | |||
1514 | hidnplayr | 585 | lea ebx, [eax + SOCKET.lock] |
1256 | clevermous | 586 | call wait_mutex |
1514 | hidnplayr | 587 | |
588 | movzx ebx, [eax + TCP_SOCKET.backlog_cur] |
||
589 | test ebx, ebx |
||
1256 | clevermous | 590 | jz .unlock_err |
1514 | hidnplayr | 591 | |
592 | dec [eax + TCP_SOCKET.backlog_cur] |
||
593 | mov eax, [eax + TCP_SOCKET.end + (ebx-1)*4] |
||
594 | mov [eax + SOCKET.lock], 0 |
||
595 | mov dword [esp+32], 0 |
||
596 | |||
597 | call TCP_output ;;;;; |
||
598 | |||
1159 | hidnplayr | 599 | ret |
1514 | hidnplayr | 600 | |
1256 | clevermous | 601 | .unlock_err: |
1514 | hidnplayr | 602 | mov [eax + SOCKET.lock], 0 |
1256 | clevermous | 603 | jmp s_error |
1159 | hidnplayr | 604 | |
605 | |||
1257 | hidnplayr | 606 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 607 | ; |
608 | ; SOCKET_close |
||
609 | ; |
||
610 | ; IN: socket number in ecx |
||
611 | ; OUT: eax is socket num, -1 on error |
||
612 | ; |
||
1257 | hidnplayr | 613 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 614 | align 4 |
1514 | hidnplayr | 615 | SOCKET_close: |
1159 | hidnplayr | 616 | |
1514 | hidnplayr | 617 | DEBUGF 1,"socket_close: socknum: %u\n", ecx |
1159 | hidnplayr | 618 | |
1514 | hidnplayr | 619 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 620 | jz s_error |
1159 | hidnplayr | 621 | |
1514 | hidnplayr | 622 | cmp [eax + SOCKET.Domain], AF_INET4 |
1249 | hidnplayr | 623 | jne s_error |
1159 | hidnplayr | 624 | |
1514 | hidnplayr | 625 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
626 | je .free |
||
1159 | hidnplayr | 627 | |
1514 | hidnplayr | 628 | cmp [eax + SOCKET.Type], IP_PROTO_ICMP |
629 | je .free |
||
1159 | hidnplayr | 630 | |
1514 | hidnplayr | 631 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 632 | je .tcp |
1159 | hidnplayr | 633 | |
1185 | hidnplayr | 634 | jmp s_error |
1159 | hidnplayr | 635 | |
636 | .tcp: |
||
1514 | hidnplayr | 637 | test [eax + TCP_SOCKET.t_state], TCB_SYN_RECEIVED ;;;;;; |
638 | jz .free |
||
1318 | hidnplayr | 639 | |
1529 | hidnplayr | 640 | ;;; call TCP_output |
1159 | hidnplayr | 641 | |
1529 | hidnplayr | 642 | ;;; mov dword [esp+32], 0 |
1159 | hidnplayr | 643 | |
1529 | hidnplayr | 644 | ;;; ret |
1159 | hidnplayr | 645 | |
1514 | hidnplayr | 646 | ; state must be LISTEN, SYN_SENT, CLOSED or maybe even invalid |
647 | ; so, we may destroy the socket |
||
648 | .free: |
||
649 | call SOCKET_free |
||
650 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 651 | |
652 | ret |
||
653 | |||
654 | |||
1257 | hidnplayr | 655 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 656 | ; |
657 | ; SOCKET_receive |
||
658 | ; |
||
659 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 660 | ; addr to buffer in edx |
661 | ; length of buffer in esi |
||
1159 | hidnplayr | 662 | ; flags in edi |
663 | ; OUT: eax is number of bytes copied, -1 on error |
||
664 | ; |
||
1257 | hidnplayr | 665 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 666 | align 4 |
1514 | hidnplayr | 667 | SOCKET_receive: |
1159 | hidnplayr | 668 | |
1514 | hidnplayr | 669 | DEBUGF 1,"socket_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x\n", ecx, edx, esi, edi |
670 | |||
671 | call SOCKET_num_to_ptr |
||
1185 | hidnplayr | 672 | jz s_error |
1159 | hidnplayr | 673 | |
1281 | hidnplayr | 674 | mov ebx, esi |
1514 | hidnplayr | 675 | get_from_queue (eax + SOCKET_QUEUE_LOCATION),\ |
676 | SOCKET_QUEUE_SIZE,\ |
||
677 | socket_queue_entry.size,\ |
||
678 | s_error |
||
679 | ; destroys esi and ecx |
||
1281 | hidnplayr | 680 | |
1514 | hidnplayr | 681 | mov edi, edx ; addr to buffer |
1159 | hidnplayr | 682 | |
1249 | hidnplayr | 683 | mov ecx, [esi + socket_queue_entry.data_size] |
684 | DEBUGF 1,"Got %u bytes of data\n", ecx |
||
1159 | hidnplayr | 685 | |
1281 | hidnplayr | 686 | cmp ecx, ebx |
1249 | hidnplayr | 687 | jle .large_enough |
688 | DEBUGF 1,"Buffer too small...\n" |
||
689 | jmp s_error |
||
1514 | hidnplayr | 690 | |
1249 | hidnplayr | 691 | .large_enough: |
1514 | hidnplayr | 692 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
693 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
1249 | hidnplayr | 694 | DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi |
1514 | hidnplayr | 695 | mov dword[esp+32+4], ecx ; return number of bytes copied in ebx |
1159 | hidnplayr | 696 | |
1514 | hidnplayr | 697 | ; copy the data |
1249 | hidnplayr | 698 | shr ecx, 1 |
699 | jnc .nb |
||
700 | movsb |
||
701 | .nb: shr ecx, 1 |
||
702 | jnc .nw |
||
703 | movsw |
||
1274 | hidnplayr | 704 | .nw: test ecx, ecx |
705 | jz .nd |
||
706 | rep movsd |
||
707 | .nd: |
||
1514 | hidnplayr | 708 | ; remove the packet ;;; TODO: only if it is empty!! |
1159 | hidnplayr | 709 | |
1514 | hidnplayr | 710 | ;;;; call TCP_output ; only if it is tcp |
1159 | hidnplayr | 711 | |
1514 | hidnplayr | 712 | call kernel_free |
713 | |||
1159 | hidnplayr | 714 | ret |
715 | |||
716 | |||
1257 | hidnplayr | 717 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 718 | ; |
719 | ; SOCKET_send |
||
720 | ; |
||
721 | ; |
||
722 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 723 | ; pointer to data in edx |
724 | ; datalength in esi |
||
1159 | hidnplayr | 725 | ; flags in edi |
726 | ; OUT: -1 on error |
||
727 | ; |
||
1257 | hidnplayr | 728 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 729 | align 4 |
1514 | hidnplayr | 730 | SOCKET_send: |
1159 | hidnplayr | 731 | |
1514 | hidnplayr | 732 | DEBUGF 1,"socket_send: socknum: %u sockaddr: %x, length: %u, flags: %x\n", ecx, edx, esi, edi |
1159 | hidnplayr | 733 | |
1514 | hidnplayr | 734 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 735 | jz s_error |
1159 | hidnplayr | 736 | |
1514 | hidnplayr | 737 | cmp word [eax + SOCKET.Domain], AF_INET4 |
1206 | hidnplayr | 738 | je .af_inet4 |
739 | |||
740 | jmp s_error |
||
741 | |||
742 | .af_inet4: |
||
1514 | hidnplayr | 743 | DEBUGF 1,"af_inet4\n" |
1206 | hidnplayr | 744 | |
1529 | hidnplayr | 745 | cmp [eax + IP_SOCKET.LocalIP], 0 |
746 | jne @f |
||
747 | mov ebx, [IP_LIST] ;;;; |
||
748 | mov dword [eax + IP_SOCKET.LocalIP], ebx |
||
749 | @@: |
||
750 | |||
1514 | hidnplayr | 751 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1249 | hidnplayr | 752 | je .tcp |
1159 | hidnplayr | 753 | |
1514 | hidnplayr | 754 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
1159 | hidnplayr | 755 | je .udp |
756 | |||
1185 | hidnplayr | 757 | jmp s_error |
1159 | hidnplayr | 758 | |
759 | .udp: |
||
1514 | hidnplayr | 760 | DEBUGF 1,"type: UDP\n" |
1159 | hidnplayr | 761 | |
1514 | hidnplayr | 762 | ; check if local port is valid |
763 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
||
1249 | hidnplayr | 764 | jne @f |
1206 | hidnplayr | 765 | |
1514 | hidnplayr | 766 | call SOCKET_find_port |
767 | jz s_error |
||
1206 | hidnplayr | 768 | |
1514 | hidnplayr | 769 | ; Now, send the packet |
1249 | hidnplayr | 770 | @@: |
1159 | hidnplayr | 771 | mov ecx, esi |
772 | mov esi, edx |
||
773 | |||
1514 | hidnplayr | 774 | call UDP_output |
1159 | hidnplayr | 775 | |
1514 | hidnplayr | 776 | mov dword [esp+32], 0 |
1159 | hidnplayr | 777 | ret |
778 | |||
1249 | hidnplayr | 779 | .tcp: |
1514 | hidnplayr | 780 | DEBUGF 1,"type: TCP\n" |
1159 | hidnplayr | 781 | |
1514 | hidnplayr | 782 | ; check if local port is valid |
783 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
||
1254 | hidnplayr | 784 | jne @f |
785 | |||
1514 | hidnplayr | 786 | call SOCKET_find_port |
787 | jz s_error |
||
1254 | hidnplayr | 788 | |
789 | @@: |
||
1514 | hidnplayr | 790 | ;;;; TODO: queue the data |
1254 | hidnplayr | 791 | |
1514 | hidnplayr | 792 | call TCP_output |
1254 | hidnplayr | 793 | |
1249 | hidnplayr | 794 | mov [esp+32], eax |
795 | ret |
||
1159 | hidnplayr | 796 | |
1249 | hidnplayr | 797 | |
798 | |||
799 | |||
1257 | hidnplayr | 800 | ;----------------------------------------------------------------- |
1256 | clevermous | 801 | ; |
1257 | hidnplayr | 802 | ; SOCKET_get_options |
1256 | clevermous | 803 | ; |
1514 | hidnplayr | 804 | ; IN: ecx = socket number |
805 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 806 | ; dd level, optname, optval, optlen |
1256 | clevermous | 807 | ; OUT: -1 on error |
808 | ; |
||
809 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
810 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1299 | clevermous | 811 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCB_*. |
1256 | clevermous | 812 | ; |
1257 | hidnplayr | 813 | ;----------------------------------------------------------------- |
814 | align 4 |
||
1514 | hidnplayr | 815 | SOCKET_get_opt: |
1257 | hidnplayr | 816 | |
1514 | hidnplayr | 817 | DEBUGF 1,"socket_get_opt\n" |
818 | |||
819 | call SOCKET_num_to_ptr |
||
820 | jz s_error |
||
821 | |||
1256 | clevermous | 822 | cmp dword [edx], IP_PROTO_TCP |
1514 | hidnplayr | 823 | jnz s_error |
1256 | clevermous | 824 | cmp dword [edx+4], -2 |
1299 | clevermous | 825 | jz @f |
826 | cmp dword [edx+4], -3 |
||
1514 | hidnplayr | 827 | jnz s_error |
1299 | clevermous | 828 | @@: |
1514 | hidnplayr | 829 | ; mov eax, [edx+12] |
830 | ; test eax, eax |
||
831 | ; jz .fail |
||
832 | ; cmp dword [eax], 4 |
||
833 | ; mov dword [eax], 4 |
||
834 | ; jb .fail |
||
835 | ; stdcall net_socket_num_to_addr, ecx |
||
836 | ; test eax, eax |
||
837 | ; jz .fail |
||
838 | ; ; todo: check that eax is really TCP socket |
||
839 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
840 | ; cmp dword [edx+4], -2 |
||
841 | ; jz @f |
||
842 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 843 | @@: |
1256 | clevermous | 844 | mov eax, [edx+8] |
845 | test eax, eax |
||
846 | jz @f |
||
847 | mov [eax], ecx |
||
848 | @@: |
||
1257 | hidnplayr | 849 | mov dword [esp+32], 0 |
1256 | clevermous | 850 | ret |
1159 | hidnplayr | 851 | |
852 | |||
1529 | hidnplayr | 853 | |
1257 | hidnplayr | 854 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 855 | ; |
1529 | hidnplayr | 856 | ; SOCKET_debug |
857 | ; |
||
858 | ; Copies socket variables to application buffer |
||
859 | ; |
||
860 | ; IN: ecx = socket number |
||
861 | ; edx = pointer to buffer |
||
862 | ; |
||
863 | ; OUT: -1 on error |
||
864 | ;----------------------------------------------------------------- |
||
865 | align 4 |
||
866 | SOCKET_debug: |
||
867 | |||
868 | DEBUGF 1,"socket_debug\n" |
||
869 | |||
870 | call SOCKET_num_to_ptr |
||
871 | jz s_error |
||
872 | |||
873 | mov esi, eax |
||
874 | mov edi, edx |
||
875 | mov ecx, SOCKETBUFFSIZE/4 |
||
876 | rep movsd |
||
877 | |||
878 | mov dword [esp+32], 0 |
||
879 | ret |
||
880 | |||
881 | |||
882 | ;----------------------------------------------------------------- |
||
883 | ; |
||
1514 | hidnplayr | 884 | ; SOCKET_find_port |
1206 | hidnplayr | 885 | ; |
1514 | hidnplayr | 886 | ; Fills in the local port number for TCP and UDP sockets |
887 | ; This procedure always works because the number of sockets is |
||
888 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 889 | ; |
1514 | hidnplayr | 890 | ; IN: eax = socket pointer |
891 | ; OUT: / |
||
1206 | hidnplayr | 892 | ; |
1257 | hidnplayr | 893 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 894 | align 4 |
1514 | hidnplayr | 895 | SOCKET_find_port: |
1159 | hidnplayr | 896 | |
1514 | hidnplayr | 897 | DEBUGF 1,"socket_find_free_port\n" |
1159 | hidnplayr | 898 | |
1514 | hidnplayr | 899 | push ebx esi ecx |
900 | |||
901 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
||
1206 | hidnplayr | 902 | je .udp |
1159 | hidnplayr | 903 | |
1514 | hidnplayr | 904 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 905 | je .tcp |
1159 | hidnplayr | 906 | |
1514 | hidnplayr | 907 | jmp .error |
908 | |||
909 | .done: |
||
910 | mov [eax + UDP_SOCKET.LocalPort], bx |
||
911 | .error: |
||
912 | pop ecx esi ebx |
||
913 | ret |
||
914 | |||
1206 | hidnplayr | 915 | .udp: |
916 | mov bx, [last_UDP_port] |
||
1514 | hidnplayr | 917 | call .findit |
918 | mov [last_UDP_port], bx |
||
919 | jmp .done |
||
1206 | hidnplayr | 920 | |
921 | .tcp: |
||
922 | mov bx, [last_TCP_port] |
||
1514 | hidnplayr | 923 | call .findit |
924 | mov [last_TCP_port], bx |
||
925 | jmp .done |
||
1206 | hidnplayr | 926 | |
927 | |||
1514 | hidnplayr | 928 | .restart: |
929 | mov bx, MIN_EPHEMERAL_PORT |
||
930 | .findit: |
||
1206 | hidnplayr | 931 | inc bx |
932 | |||
933 | cmp bx, MAX_EPHEMERAL_PORT |
||
1514 | hidnplayr | 934 | jz .restart |
1206 | hidnplayr | 935 | |
1514 | hidnplayr | 936 | call SOCKET_check_port |
937 | jz .findit |
||
1206 | hidnplayr | 938 | |
939 | ret |
||
940 | |||
1257 | hidnplayr | 941 | |
942 | |||
943 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 944 | ; |
1514 | hidnplayr | 945 | ; SOCKET_check_port |
1206 | hidnplayr | 946 | ; |
1514 | hidnplayr | 947 | ; Checks if a local port number is unused |
948 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 949 | ; |
1514 | hidnplayr | 950 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
951 | ; bx = proposed socket number |
||
1206 | hidnplayr | 952 | ; |
1514 | hidnplayr | 953 | ; OUT: ZF = cleared on error |
954 | ; |
||
1257 | hidnplayr | 955 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 956 | align 4 |
1514 | hidnplayr | 957 | SOCKET_check_port: |
958 | |||
959 | DEBUGF 1,"socket_check_port\n" |
||
960 | |||
961 | mov ecx, [eax + SOCKET.Type] |
||
1206 | hidnplayr | 962 | mov esi, net_sockets |
963 | |||
964 | .next_socket: |
||
1514 | hidnplayr | 965 | mov esi, [esi + SOCKET.NextPtr] |
1206 | hidnplayr | 966 | or esi, esi |
967 | jz .port_ok |
||
968 | |||
1514 | hidnplayr | 969 | cmp [esi + SOCKET.Type], ecx |
1206 | hidnplayr | 970 | jne .next_socket |
971 | |||
1514 | hidnplayr | 972 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1206 | hidnplayr | 973 | jne .next_socket |
974 | |||
1514 | hidnplayr | 975 | DEBUGF 1,"local port %u already in use\n", bx |
976 | ret |
||
1206 | hidnplayr | 977 | |
978 | .port_ok: |
||
1514 | hidnplayr | 979 | mov [eax + UDP_SOCKET.LocalPort], bx |
980 | or bx, bx ; set the zero-flag |
||
981 | |||
1206 | hidnplayr | 982 | ret |
983 | |||
984 | |||
1257 | hidnplayr | 985 | |
986 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 987 | ; |
1514 | hidnplayr | 988 | ; SOCKET_input |
1206 | hidnplayr | 989 | ; |
1249 | hidnplayr | 990 | ; Updates a socket with received data |
1206 | hidnplayr | 991 | ; |
1514 | hidnplayr | 992 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 993 | ; |
1249 | hidnplayr | 994 | ; IN: eax = socket ptr |
1514 | hidnplayr | 995 | ; ebx = pointer to device struct |
996 | ; ecx = data size |
||
997 | ; esi = ptr to data |
||
998 | ; [esp] = ptr to buf |
||
999 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1000 | ; |
1514 | hidnplayr | 1001 | ; OUT: / |
1206 | hidnplayr | 1002 | ; |
1257 | hidnplayr | 1003 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1004 | align 4 |
1514 | hidnplayr | 1005 | SOCKET_input: |
1206 | hidnplayr | 1006 | |
1514 | hidnplayr | 1007 | DEBUGF 1,"socket_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1008 | |
1514 | hidnplayr | 1009 | mov dword[esp+4], ecx |
1010 | push esi |
||
1249 | hidnplayr | 1011 | mov esi, esp |
1514 | hidnplayr | 1012 | |
1013 | add_to_queue (eax + SOCKET_QUEUE_LOCATION),\ |
||
1014 | SOCKET_QUEUE_SIZE,\ |
||
1015 | socket_queue_entry.size,\ |
||
1016 | SOCKET_input.full |
||
1017 | |||
1249 | hidnplayr | 1018 | DEBUGF 1,"Queued packet successfully\n" |
1257 | hidnplayr | 1019 | add esp, socket_queue_entry.size |
1514 | hidnplayr | 1020 | mov [eax + SOCKET.lock], 0 |
1021 | jmp SOCKET_notify_owner |
||
1206 | hidnplayr | 1022 | |
1514 | hidnplayr | 1023 | .full: |
1024 | DEBUGF 2,"Socket %x is full!\n", eax |
||
1025 | mov [eax + SOCKET.lock], 0 |
||
1026 | call kernel_free |
||
1027 | add esp, 8 |
||
1206 | hidnplayr | 1028 | |
1514 | hidnplayr | 1029 | ret |
1030 | |||
1031 | ;----------------------------------------------------------------- |
||
1032 | ; |
||
1529 | hidnplayr | 1033 | ; SOCKET_ring_add |
1034 | ; |
||
1035 | ; Adds data to a stream socket |
||
1036 | ; |
||
1037 | ; IN: eax = ptr to ring struct |
||
1038 | ; ecx = data size |
||
1039 | ; esi = ptr to data |
||
1040 | ; |
||
1041 | ; OUT: eax = number of bytes stored |
||
1042 | ; |
||
1043 | ;----------------------------------------------------------------- |
||
1044 | align 4 |
||
1045 | SOCKET_ring_add: |
||
1046 | |||
1047 | DEBUGF 1,"SOCKET_ring_add: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
||
1048 | |||
1049 | mov edi, [eax + RING_BUFFER.size] |
||
1050 | add edi, ecx |
||
1051 | cmp edi, SOCKET_MAXDATA |
||
1052 | jg .too_large |
||
1053 | |||
1054 | mov [eax + RING_BUFFER.size], edi ; update size |
||
1055 | .copy: |
||
1056 | push ecx ;<<<< 1 |
||
1057 | mov edi, [eax + RING_BUFFER.write_ptr] ; set write ptr in edi |
||
1058 | add [eax + RING_BUFFER.write_ptr], ecx ; update write pointer |
||
1059 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1060 | cmp edx, [eax + RING_BUFFER.write_ptr] |
||
1061 | jg .copy_in_2 |
||
1062 | je .wrap_write_ptr |
||
1063 | |||
1064 | .copy_more: |
||
1065 | push ecx |
||
1066 | and ecx, 3 |
||
1067 | rep movsb |
||
1068 | pop ecx |
||
1069 | shr ecx, 2 |
||
1070 | rep movsd |
||
1071 | pop ecx ; >>>> 1/2 |
||
1072 | DEBUGF 2,"Copied %u bytes\n", ecx |
||
1073 | |||
1074 | ret |
||
1075 | |||
1076 | .too_large: |
||
1077 | mov ecx, SOCKET_MAXDATA ; calculate number of bytes available in buffer |
||
1078 | sub ecx, [eax + RING_BUFFER.size] |
||
1079 | jz .full |
||
1080 | |||
1081 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA ; update size, we will fill buffer completely |
||
1082 | |||
1083 | jmp .copy |
||
1084 | |||
1085 | .full: |
||
1086 | DEBUGF 2,"Ring buffer is full!\n" |
||
1087 | xor ecx, ecx |
||
1088 | ret |
||
1089 | |||
1090 | .copy_in_2: |
||
1091 | DEBUGF 1,"Copying in 2 passes\n" |
||
1092 | |||
1093 | mov edx, ecx |
||
1094 | mov ecx, [eax + RING_BUFFER.end_ptr] ; find number of bytes till end of buffer |
||
1095 | sub ecx, edi |
||
1096 | sub edx, ecx |
||
1097 | push edx ; <<<< 2 |
||
1098 | |||
1099 | mov edi, [eax + RING_BUFFER.start_ptr] |
||
1100 | call .copy_more |
||
1101 | |||
1102 | .wrap_write_ptr: |
||
1103 | sub [eax + RING_BUFFER.write_ptr], SOCKET_MAXDATA ; update write pointer |
||
1104 | jmp .copy_more |
||
1105 | |||
1106 | |||
1107 | |||
1108 | |||
1109 | ;----------------------------------------------------------------- |
||
1110 | ; |
||
1111 | ; SOCKET_ring_read |
||
1112 | ; |
||
1113 | ; reads the data, but let the data remain in the buffer |
||
1114 | ; |
||
1115 | ; IN: eax = ptr to ring struct |
||
1116 | ; ecx = buffer size |
||
1117 | ; edi = ptr to buffer |
||
1118 | ; |
||
1119 | ; OUT: eax = number of bytes read |
||
1120 | ; |
||
1121 | ;----------------------------------------------------------------- |
||
1122 | align 4 |
||
1123 | SOCKET_ring_read: |
||
1124 | |||
1125 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
||
1126 | |||
1127 | cmp [eax + RING_BUFFER.size], ecx ; update size |
||
1128 | jl .too_large |
||
1129 | |||
1130 | mov esi, [eax + RING_BUFFER.read_ptr] ; update read ptr |
||
1131 | .copy: |
||
1132 | push ecx ;<<<< 1 |
||
1133 | mov edx, [eax + RING_BUFFER.read_ptr] |
||
1134 | add edx, ecx |
||
1135 | cmp edx, [eax + RING_BUFFER.end_ptr] |
||
1136 | jg .copy_in_2 |
||
1137 | |||
1138 | .copy_more: |
||
1139 | push ecx |
||
1140 | and ecx, 3 |
||
1141 | rep movsb |
||
1142 | pop ecx |
||
1143 | shr ecx, 2 |
||
1144 | rep movsd |
||
1145 | pop ecx ; >>>> 1/2 |
||
1146 | DEBUGF 2,"Copied %u bytes\n", ecx |
||
1147 | |||
1148 | ret |
||
1149 | |||
1150 | .too_large: |
||
1151 | mov ecx, [eax + RING_BUFFER.size] |
||
1152 | jmp .copy |
||
1153 | |||
1154 | .full: |
||
1155 | DEBUGF 2,"Ring buffer is full!\n" |
||
1156 | xor ecx, ecx |
||
1157 | ret |
||
1158 | |||
1159 | .copy_in_2: |
||
1160 | DEBUGF 1,"Copying in 2 passes\n" |
||
1161 | |||
1162 | mov edx, ecx |
||
1163 | mov ecx, [eax + RING_BUFFER.end_ptr] ; find number of bytes till end of buffer |
||
1164 | sub ecx, edi |
||
1165 | sub edx, ecx |
||
1166 | push edx ; <<<< 2 |
||
1167 | |||
1168 | mov esi, [eax + RING_BUFFER.start_ptr] |
||
1169 | call .copy_more |
||
1170 | |||
1171 | |||
1172 | ;----------------------------------------------------------------- |
||
1173 | ; |
||
1174 | ; SOCKET_ring_free |
||
1175 | ; |
||
1176 | ; Free's some bytes from the ringbuffer |
||
1177 | ; |
||
1178 | ; IN: eax = ptr to ring struct |
||
1179 | ; ecx = data size |
||
1180 | ; |
||
1181 | ; OUT: ecx = number of bytes free-ed |
||
1182 | ; |
||
1183 | ;----------------------------------------------------------------- |
||
1184 | align 4 |
||
1185 | SOCKET_ring_free: |
||
1186 | |||
1187 | DEBUGF 1,"Trying to free %u bytes of data from ring %x\n", ecx, eax |
||
1188 | |||
1189 | cmp ecx, [eax + RING_BUFFER.size] |
||
1190 | jle .go_for_it |
||
1191 | |||
1192 | cmp ecx, SOCKET_MAXDATA ;;;; |
||
1193 | jg .moron_input |
||
1194 | |||
1195 | mov ecx, [eax + RING_BUFFER.size] |
||
1196 | |||
1197 | .go_for_it: |
||
1198 | sub [eax + RING_BUFFER.size], ecx |
||
1199 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1200 | |||
1201 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1202 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1203 | jl @f |
||
1204 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA ;;;;; |
||
1205 | @@: |
||
1206 | ret |
||
1207 | |||
1208 | .moron_input: |
||
1209 | xor ecx, ecx |
||
1210 | ret |
||
1211 | |||
1212 | |||
1213 | ;----------------------------------------------------------------- |
||
1214 | ; |
||
1514 | hidnplayr | 1215 | ; SOCKET_notify_owner |
1216 | ; |
||
1217 | ; notify's the owner of a socket that something happened |
||
1218 | ; |
||
1219 | ; IN: eax = socket ptr |
||
1220 | ; OUT: / |
||
1221 | ; |
||
1222 | ;----------------------------------------------------------------- |
||
1223 | align 4 |
||
1224 | SOCKET_notify_owner: |
||
1225 | |||
1226 | DEBUGF 1,"socket_notify_owner\n" |
||
1227 | |||
1228 | call SOCKET_check |
||
1229 | jz .error |
||
1230 | |||
1231 | push ecx eax esi |
||
1232 | |||
1233 | ; socket exists, now try to flag an event to the application |
||
1234 | |||
1235 | mov eax, [eax + SOCKET.PID] |
||
1206 | hidnplayr | 1236 | mov ecx, 1 |
1237 | mov esi, TASK_DATA + TASKDATA.pid |
||
1238 | |||
1239 | .next_pid: |
||
1514 | hidnplayr | 1240 | cmp [esi], eax |
1206 | hidnplayr | 1241 | je .found_pid |
1242 | inc ecx |
||
1243 | add esi, 0x20 |
||
1244 | cmp ecx, [TASK_COUNT] |
||
1245 | jbe .next_pid |
||
1246 | |||
1514 | hidnplayr | 1247 | ; PID not found, TODO: close socket! |
1248 | |||
1249 | jmp .error2 |
||
1250 | |||
1206 | hidnplayr | 1251 | .found_pid: |
1252 | shl ecx, 8 |
||
1514 | hidnplayr | 1253 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
1206 | hidnplayr | 1254 | mov [check_idle_semaphore], 200 |
1255 | |||
1514 | hidnplayr | 1256 | DEBUGF 1,"owner notified\n" |
1257 | |||
1258 | .error2: |
||
1259 | pop esi eax ecx |
||
1260 | .error: |
||
1261 | |||
1206 | hidnplayr | 1262 | ret |
1263 | |||
1264 | |||
1514 | hidnplayr | 1265 | ;-------------------------------------------------------------------- |
1266 | ; |
||
1267 | ; SOCKET_alloc |
||
1268 | ; |
||
1159 | hidnplayr | 1269 | ; Allocate memory for socket data and put new socket into the list |
1270 | ; Newly created socket is initialized with calling PID and number and |
||
1271 | ; put into beginning of list (which is a fastest way). |
||
1272 | ; |
||
1514 | hidnplayr | 1273 | ; IN: / |
1274 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1275 | ; edi = socket number |
||
1276 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1277 | ; |
1514 | hidnplayr | 1278 | ;-------------------------------------------------------------------- |
1279 | align 4 |
||
1280 | SOCKET_alloc: |
||
1281 | |||
1282 | push ecx ebx |
||
1283 | |||
1159 | hidnplayr | 1284 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1529 | hidnplayr | 1285 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
1159 | hidnplayr | 1286 | or eax, eax |
1287 | jz .exit |
||
1288 | |||
1514 | hidnplayr | 1289 | ; zero-initialize allocated memory |
1290 | push eax edi |
||
1159 | hidnplayr | 1291 | mov edi, eax |
1292 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1293 | xor eax, eax |
||
1294 | rep stosd |
||
1514 | hidnplayr | 1295 | pop edi eax |
1159 | hidnplayr | 1296 | |
1514 | hidnplayr | 1297 | ; find first free socket number and use it |
1159 | hidnplayr | 1298 | mov ebx, net_sockets |
1299 | xor ecx, ecx |
||
1300 | .next_socket_number: |
||
1301 | inc ecx |
||
1302 | .next_socket: |
||
1514 | hidnplayr | 1303 | mov ebx, [ebx + SOCKET.NextPtr] |
1529 | hidnplayr | 1304 | test ebx, ebx |
1514 | hidnplayr | 1305 | jz .last_socket |
1306 | cmp [ebx + SOCKET.Number], ecx |
||
1159 | hidnplayr | 1307 | jne .next_socket |
1308 | mov ebx, net_sockets |
||
1309 | jmp .next_socket_number |
||
1310 | |||
1514 | hidnplayr | 1311 | .last_socket: |
1312 | mov [eax + SOCKET.Number], ecx |
||
1529 | hidnplayr | 1313 | DEBUGF 1, "SOCKET_alloc: number=%u\n", ecx |
1314 | mov edi, ecx |
||
1159 | hidnplayr | 1315 | |
1514 | hidnplayr | 1316 | ; Fill in PID |
1317 | mov ebx, [TASK_BASE] |
||
1318 | mov ebx, [ebx + TASKDATA.pid] |
||
1319 | mov [eax + SOCKET.PID], ebx |
||
1320 | |||
1529 | hidnplayr | 1321 | ; add socket to the list by re-arranging some pointers |
1514 | hidnplayr | 1322 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1323 | |||
1324 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1325 | mov [eax + SOCKET.NextPtr], ebx |
||
1326 | |||
1529 | hidnplayr | 1327 | test ebx, ebx |
1514 | hidnplayr | 1328 | jz @f |
1329 | add ebx, SOCKET.lock ; lock the next socket |
||
1330 | call wait_mutex |
||
1331 | sub ebx, SOCKET.lock |
||
1332 | mov [ebx + SOCKET.PrevPtr], eax |
||
1333 | mov [ebx + SOCKET.lock], 0 |
||
1334 | @@: |
||
1335 | |||
1336 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1529 | hidnplayr | 1337 | or eax, eax ; used to clear zero flag |
1159 | hidnplayr | 1338 | .exit: |
1514 | hidnplayr | 1339 | pop ebx ecx |
1340 | |||
1159 | hidnplayr | 1341 | ret |
1342 | |||
1514 | hidnplayr | 1343 | |
1344 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1345 | ; |
1514 | hidnplayr | 1346 | ; SOCKET_free |
1159 | hidnplayr | 1347 | ; |
1514 | hidnplayr | 1348 | ; Free socket data memory and remove socket from the list |
1349 | ; |
||
1350 | ; IN: eax = socket ptr |
||
1351 | ; OUT: / |
||
1352 | ; |
||
1353 | ;---------------------------------------------------- |
||
1354 | align 4 |
||
1355 | SOCKET_free: |
||
1159 | hidnplayr | 1356 | |
1514 | hidnplayr | 1357 | DEBUGF 1, "socket_free: %x\n", eax |
1358 | |||
1359 | call SOCKET_check |
||
1159 | hidnplayr | 1360 | jz .error |
1361 | |||
1514 | hidnplayr | 1362 | push ebx |
1363 | lea ebx, [eax + SOCKET.lock] |
||
1364 | call wait_mutex |
||
1365 | |||
1366 | DEBUGF 1, "freeing socket..\n" |
||
1367 | |||
1529 | hidnplayr | 1368 | cmp [eax + SOCKET.Domain], AF_INET4 |
1369 | jnz .no_stream |
||
1370 | |||
1371 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
||
1372 | jnz .no_stream |
||
1373 | |||
1374 | stdcall kernel_free, [eax + rcv.start_ptr] |
||
1375 | stdcall kernel_free, [eax + snd.start_ptr] |
||
1376 | .no_stream: |
||
1377 | |||
1514 | hidnplayr | 1378 | push eax ; this will be passed to kernel_free |
1379 | mov ebx, [eax + SOCKET.NextPtr] |
||
1380 | mov eax, [eax + SOCKET.PrevPtr] |
||
1381 | |||
1382 | DEBUGF 1, "linking socket %x to socket %x\n", eax, ebx |
||
1383 | |||
1384 | test eax, eax |
||
1159 | hidnplayr | 1385 | jz @f |
1514 | hidnplayr | 1386 | mov [eax + SOCKET.NextPtr], ebx |
1387 | @@: |
||
1159 | hidnplayr | 1388 | |
1514 | hidnplayr | 1389 | test ebx, ebx |
1390 | jz @f |
||
1391 | mov [ebx + SOCKET.PrevPtr], eax |
||
1392 | @@: |
||
1249 | hidnplayr | 1393 | |
1514 | hidnplayr | 1394 | call kernel_free |
1395 | pop ebx |
||
1159 | hidnplayr | 1396 | |
1514 | hidnplayr | 1397 | DEBUGF 1, "socket is gone!\n" |
1398 | |||
1159 | hidnplayr | 1399 | .error: |
1400 | ret |
||
1401 | |||
1514 | hidnplayr | 1402 | |
1529 | hidnplayr | 1403 | ; socket nr in ebx |
1404 | ; new socket nr in eax |
||
1405 | ; preserver edx |
||
1406 | |||
1407 | align 4 |
||
1408 | SOCKET_fork: |
||
1409 | |||
1410 | ;; Exit if backlog queue is full |
||
1411 | ; mov ax, [ebx + TCP_SOCKET.backlog_cur] |
||
1412 | ; cmp ax, [ebx + TCP_SOCKET.backlog] |
||
1413 | ; jae .exit |
||
1414 | |||
1415 | ; Allocate new socket |
||
1416 | call SOCKET_alloc |
||
1417 | ;;; jz .fail |
||
1418 | |||
1419 | ; Copy structure from current socket to new, (including lock!) |
||
1420 | ; We start at PID to reserve the socket num, and the 2 pointers at beginning of socket |
||
1421 | lea esi, [edx + SOCKET.PID] |
||
1422 | lea edi, [eax + SOCKET.PID] |
||
1423 | mov ecx, (TCP_SOCKET.end - SOCKET.PID + 3)/4 |
||
1424 | rep movsd |
||
1425 | |||
1426 | ;; Push pointer to new socket to queue |
||
1427 | ; movzx ecx, [ebx + TCP_SOCKET.backlog_cur] |
||
1428 | ; inc [ebx + TCP_SOCKET.backlog_cur] |
||
1429 | ; mov [ebx + TCP_SOCKET.end + ecx*4], eax |
||
1430 | |||
1431 | ;;;; mov [eax + IP_SOCKET.RemoteIP], esi ; IP source address |
||
1432 | |||
1433 | ret |
||
1434 | |||
1435 | |||
1514 | hidnplayr | 1436 | ;--------------------------------------------------- |
1437 | ; |
||
1438 | ; SOCKET_num_to_ptr |
||
1439 | ; |
||
1159 | hidnplayr | 1440 | ; Get socket structure address by its number |
1441 | ; |
||
1514 | hidnplayr | 1442 | ; IN: ecx = socket number |
1443 | ; OUT: ecx = 0 on error, socket ptr otherwise |
||
1444 | ; ZF = set on error |
||
1159 | hidnplayr | 1445 | ; |
1514 | hidnplayr | 1446 | ;--------------------------------------------------- |
1447 | align 4 |
||
1448 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1449 | |
1514 | hidnplayr | 1450 | DEBUGF 1,"socket_num_to_ptr: %u ", ecx |
1451 | |||
1452 | mov eax, net_sockets |
||
1453 | |||
1159 | hidnplayr | 1454 | .next_socket: |
1514 | hidnplayr | 1455 | mov eax, [eax + SOCKET.NextPtr] |
1456 | or eax, eax |
||
1159 | hidnplayr | 1457 | jz .error |
1514 | hidnplayr | 1458 | cmp [eax + SOCKET.Number], ecx |
1159 | hidnplayr | 1459 | jne .next_socket |
1460 | |||
1514 | hidnplayr | 1461 | test eax, eax |
1159 | hidnplayr | 1462 | |
1514 | hidnplayr | 1463 | DEBUGF 1,"(%x)\n", eax |
1159 | hidnplayr | 1464 | .error: |
1465 | ret |
||
1466 | |||
1514 | hidnplayr | 1467 | |
1468 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1469 | ; |
1514 | hidnplayr | 1470 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1471 | ; |
1514 | hidnplayr | 1472 | ; Get socket number by its address |
1473 | ; |
||
1474 | ; IN: eax = socket ptr |
||
1475 | ; OUT: eax = 0 on error, socket num otherwise |
||
1476 | ; ZF = set on error |
||
1477 | ; |
||
1478 | ;--------------------------------------------------- |
||
1479 | align 4 |
||
1480 | SOCKET_ptr_to_num: |
||
1481 | |||
1482 | DEBUGF 1,"socket_ptr_to_num: %x ", eax |
||
1483 | |||
1484 | call SOCKET_check |
||
1159 | hidnplayr | 1485 | jz .error |
1486 | |||
1514 | hidnplayr | 1487 | mov eax, [eax + SOCKET.Number] |
1488 | |||
1489 | DEBUGF 1,"(%u)\n", eax |
||
1490 | |||
1491 | .error: |
||
1492 | ret |
||
1493 | |||
1494 | |||
1495 | ;--------------------------------------------------- |
||
1496 | ; |
||
1497 | ; SOCKET_check |
||
1498 | ; |
||
1499 | ; checks if the given value is really a socket ptr |
||
1500 | ; |
||
1501 | ; IN: eax = socket ptr |
||
1502 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1503 | ; ZF = set on error |
||
1504 | ; |
||
1505 | ;--------------------------------------------------- |
||
1506 | align 4 |
||
1507 | SOCKET_check: |
||
1508 | |||
1509 | DEBUGF 1,"socket_check\n" |
||
1510 | |||
1511 | push ebx |
||
1159 | hidnplayr | 1512 | mov ebx, net_sockets |
1514 | hidnplayr | 1513 | |
1159 | hidnplayr | 1514 | .next_socket: |
1514 | hidnplayr | 1515 | mov ebx, [ebx + SOCKET.NextPtr] |
1159 | hidnplayr | 1516 | or ebx, ebx |
1514 | hidnplayr | 1517 | jz .done |
1159 | hidnplayr | 1518 | cmp ebx, eax |
1514 | hidnplayr | 1519 | jnz .next_socket |
1159 | hidnplayr | 1520 | |
1514 | hidnplayr | 1521 | .done: |
1522 | mov eax, ebx |
||
1523 | test eax, eax |
||
1524 | pop ebx |
||
1525 | |||
1159 | hidnplayr | 1526 | ret |
1527 | |||
1514 | hidnplayr | 1528 | |
1529 | |||
1530 | ;--------------------------------------------------- |
||
1531 | ; |
||
1532 | ; SOCKET_check_owner |
||
1533 | ; |
||
1534 | ; checks if the caller application owns the socket |
||
1535 | ; |
||
1536 | ; IN: eax = socket ptr |
||
1537 | ; OUT: ZF = true/false |
||
1538 | ; |
||
1539 | ;--------------------------------------------------- |
||
1540 | align 4 |
||
1541 | SOCKET_check_owner: |
||
1542 | |||
1543 | DEBUGF 1,"socket_check_owner\n" |
||
1544 | |||
1545 | push ebx |
||
1546 | mov ebx, [TASK_BASE] |
||
1547 | mov ebx, [ecx + TASKDATA.pid] |
||
1548 | cmp [eax + SOCKET.PID], ebx |
||
1549 | pop ebx |
||
1550 | |||
1159 | hidnplayr | 1551 | ret |
1514 | hidnplayr | 1552 | |
1553 | |||
1554 | |||
1555 | |||
1556 | ;--------------------------------------------------- |
||
1557 | ; |
||
1558 | ; SOCKET_process_end |
||
1559 | ; |
||
1560 | ; Kernel calls this function when a certain process ends |
||
1561 | ; This function will check if the process had any open sockets |
||
1562 | ; And update them accordingly |
||
1563 | ; |
||
1564 | ; IN: eax = pid |
||
1565 | ; OUT: / |
||
1566 | ; |
||
1567 | ;------------------------------------------------------ |
||
1568 | align 4 |
||
1569 | SOCKET_process_end: |
||
1570 | |||
1571 | DEBUGF 1,"socket_process_end: %x\n", eax |
||
1572 | |||
1573 | push ebx |
||
1574 | mov ebx, net_sockets |
||
1575 | |||
1576 | .next_socket: |
||
1577 | |||
1578 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1579 | .test_socket: |
||
1580 | test ebx, ebx |
||
1581 | jz .done |
||
1582 | |||
1583 | cmp [ebx + SOCKET.PID], eax |
||
1584 | jne .next_socket |
||
1585 | |||
1586 | DEBUGF 1,"closing socket %x", eax, ebx |
||
1587 | |||
1588 | mov [ebx + SOCKET.PID], 0 |
||
1589 | |||
1590 | cmp [ebx + SOCKET.Type], IP_PROTO_UDP |
||
1591 | je .udp |
||
1592 | |||
1593 | cmp [ebx + SOCKET.Type], IP_PROTO_TCP |
||
1594 | je .tcp |
||
1595 | |||
1596 | jmp .next_socket ; kill all sockets for given PID |
||
1597 | |||
1598 | .udp: |
||
1599 | mov eax, ebx |
||
1600 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1601 | call SOCKET_free |
||
1602 | jmp .test_socket |
||
1603 | |||
1604 | .tcp: |
||
1605 | |||
1606 | jmp .next_socket |
||
1607 | |||
1608 | .done: |
||
1609 | pop ebx |
||
1610 | |||
1611 | ret><><<><<<>><><<><<<>><><<><<<>><><<><<<> |