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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: 1541 $ |
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 | |
1536 | hidnplayr | 38 | .snd_proc dd ? |
39 | .rcv_proc dd ? |
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40 | |||
1514 | hidnplayr | 41 | .end: |
42 | end virtual |
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1249 | hidnplayr | 43 | |
1514 | hidnplayr | 44 | virtual at SOCKET.end |
1254 | hidnplayr | 45 | |
1514 | hidnplayr | 46 | IP_SOCKET: |
1318 | hidnplayr | 47 | |
1514 | hidnplayr | 48 | .LocalIP dd ? |
49 | rd 3 ; for IPv6 addresses |
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1249 | hidnplayr | 50 | |
1514 | hidnplayr | 51 | .RemoteIP dd ? |
52 | rd 3 ; for IPv6 addresses |
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1249 | hidnplayr | 53 | |
1514 | hidnplayr | 54 | .end: |
55 | end virtual |
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1159 | hidnplayr | 56 | |
1514 | hidnplayr | 57 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 58 | |
1514 | hidnplayr | 59 | TCP_SOCKET: |
60 | |||
61 | .LocalPort dw ? ; In INET byte order |
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62 | .RemotePort dw ? ; In INET byte order |
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63 | |||
64 | .backlog dw ? ; Backlog |
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65 | .backlog_cur dw ? ; current size of queue for un-accept-ed connections |
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66 | |||
67 | .OrigRemoteIP dd ? ; original remote IP address (used to reset to LISTEN state) |
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68 | .OrigRemotePort dw ? ; original remote port (used to reset to LISTEN state) |
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69 | |||
70 | .t_state dd ? ; TCB state |
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71 | .t_rxtshift dd ? |
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72 | .t_rxtcur dd ? |
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73 | .t_dupacks dd ? |
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74 | .t_maxseg dd ? |
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75 | .t_force dd ? |
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76 | .t_flags dd ? |
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77 | |||
78 | ;--------------- |
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79 | ; RFC783 page 21 |
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80 | |||
81 | ; send sequence |
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82 | .SND_UNA dd ? ; sequence number of unack'ed sent Packets |
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83 | .SND_NXT dd ? ; next send sequence number to use |
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84 | .SND_UP dd ? |
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85 | .SND_WL1 dd ? ; window minus one |
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86 | .SND_WL2 dd ? ; |
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87 | .ISS dd ? ; initial send sequence number |
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88 | .SND_WND dd ? ; send window |
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89 | |||
90 | ; receive sequence |
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91 | .RCV_WND dw ? ; receive window |
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92 | .RCV_NXT dd ? ; next receive sequence number to use |
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93 | .RCV_UP dd ? |
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94 | .IRS dd ? ; initial receive sequence number |
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95 | |||
96 | ;--------------------- |
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97 | ; Additional variables |
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98 | |||
99 | ; receive variables |
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100 | .RCV_ADV dd ? |
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101 | |||
102 | ; retransmit variables |
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103 | .SND_MAX dd ? |
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104 | |||
105 | ; congestion control |
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106 | .SND_CWND dd ? |
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107 | .SND_SSTHRESH dd ? |
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108 | |||
109 | ;---------------------- |
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110 | ; Transmit timing stuff |
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111 | .t_idle dd ? |
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112 | .t_rtt dd ? |
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113 | .t_rtseq dd ? |
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114 | .t_srtt dd ? |
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115 | .t_rttvar dd ? |
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116 | .t_rttmin dd ? |
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117 | .max_sndwnd dd ? |
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118 | |||
119 | ;----------------- |
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120 | ; Out-of-band data |
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121 | .t_oobflags dd ? |
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122 | .t_iobc dd ? |
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123 | .t_softerror dd ? |
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124 | |||
125 | |||
126 | ;--------- |
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127 | ; RFC 1323 |
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128 | .SND_SCALE db ? ; Scale factor |
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129 | .RCV_SCALE db ? |
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130 | .request_r_scale db ? |
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131 | .requested_s_scale dd ? |
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132 | |||
133 | .ts_recent dd ? |
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134 | .ts_recent_age dd ? |
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135 | .last_ack_sent dd ? |
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136 | |||
1519 | hidnplayr | 137 | |
138 | ;------- |
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139 | ; Timers |
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1529 | hidnplayr | 140 | .timer_retransmission dw ? ; rexmt |
1519 | hidnplayr | 141 | .timer_ack dw ? |
142 | .timer_persist dw ? |
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1529 | hidnplayr | 143 | .timer_keepalive dw ? ; keepalive/syn timeout |
144 | .timer_timed_wait dw ? ; also used as 2msl timer |
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1519 | hidnplayr | 145 | |
1249 | hidnplayr | 146 | .end: |
1514 | hidnplayr | 147 | end virtual |
1249 | hidnplayr | 148 | |
1514 | hidnplayr | 149 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 150 | |
1514 | hidnplayr | 151 | UDP_SOCKET: |
1249 | hidnplayr | 152 | |
1514 | hidnplayr | 153 | .LocalPort dw ? ; In INET byte order |
154 | .RemotePort dw ? ; In INET byte order |
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155 | .firstpacket db ? |
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1249 | hidnplayr | 156 | |
157 | .end: |
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1514 | hidnplayr | 158 | end virtual |
1249 | hidnplayr | 159 | |
1514 | hidnplayr | 160 | virtual at IP_SOCKET.end |
1249 | hidnplayr | 161 | |
1514 | hidnplayr | 162 | ICMP_SOCKET: |
163 | |||
164 | .Identifier dw ? ; |
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165 | |||
166 | .end: |
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167 | end virtual |
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168 | |||
1529 | hidnplayr | 169 | struc RING_BUFFER { |
170 | .start_ptr dd ? ; Pointer to start of buffer |
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171 | .end_ptr dd ? ; pointer to end of buffer |
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172 | .read_ptr dd ? ; Read pointer |
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173 | .write_ptr dd ? ; Write pointer |
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174 | .size dd ? ; Number of bytes buffered |
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1533 | hidnplayr | 175 | .end: |
1529 | hidnplayr | 176 | } |
1514 | hidnplayr | 177 | |
1529 | hidnplayr | 178 | virtual at 0 |
179 | |||
180 | RING_BUFFER RING_BUFFER |
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181 | |||
182 | end virtual |
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183 | |||
184 | virtual at TCP_SOCKET.end |
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185 | |||
186 | STREAM_SOCKET: |
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1533 | hidnplayr | 187 | .rcv rd RING_BUFFER.end/4 |
188 | .snd rd RING_BUFFER.end/4 |
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1529 | hidnplayr | 189 | .end: |
190 | |||
191 | end virtual |
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192 | |||
193 | |||
1274 | hidnplayr | 194 | struct socket_queue_entry |
195 | .data_ptr dd ? |
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1514 | hidnplayr | 196 | .buf_ptr dd ? |
1274 | hidnplayr | 197 | .data_size dd ? |
198 | .size: |
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199 | ends |
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200 | |||
1514 | hidnplayr | 201 | |
1249 | hidnplayr | 202 | SOCKETBUFFSIZE equ 4096 ; in bytes |
1514 | hidnplayr | 203 | |
1249 | hidnplayr | 204 | SOCKET_QUEUE_SIZE equ 10 ; maximum number ofincoming packets queued for 1 socket |
1514 | hidnplayr | 205 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
206 | SOCKET_QUEUE_LOCATION equ SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*socket_queue_entry.size - queue.data |
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1249 | hidnplayr | 207 | |
1159 | hidnplayr | 208 | uglobal |
1514 | hidnplayr | 209 | net_sockets rd 4 |
1159 | hidnplayr | 210 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
211 | last_TCP_port dw ? ; |
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212 | endg |
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213 | |||
214 | |||
1257 | hidnplayr | 215 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 216 | ; |
217 | ; SOCKET_init |
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218 | ; |
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1257 | hidnplayr | 219 | ;----------------------------------------------------------------- |
1529 | hidnplayr | 220 | macro SOCKET_init { |
1159 | hidnplayr | 221 | |
1514 | hidnplayr | 222 | xor eax, eax |
223 | mov edi, net_sockets |
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224 | mov ecx, 4 |
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225 | rep stosd |
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1159 | hidnplayr | 226 | |
1529 | hidnplayr | 227 | @@: |
228 | pseudo_random eax |
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229 | cmp ax, MIN_EPHEMERAL_PORT |
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230 | jl @r |
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231 | cmp ax, MAX_EPHEMERAL_PORT |
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232 | jg @r |
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233 | mov [last_UDP_port], ax |
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234 | |||
235 | @@: |
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236 | pseudo_random eax |
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237 | cmp ax, MIN_EPHEMERAL_PORT |
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238 | jl @r |
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239 | cmp ax, MAX_EPHEMERAL_PORT |
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240 | jg @r |
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241 | mov [last_TCP_port], ax |
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242 | |||
243 | } |
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244 | |||
245 | |||
1257 | hidnplayr | 246 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 247 | ; |
248 | ; Socket API (function 74) |
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249 | ; |
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1257 | hidnplayr | 250 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 251 | align 4 |
252 | sys_socket: |
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1514 | hidnplayr | 253 | cmp ebx, 8 ; highest possible number |
1529 | hidnplayr | 254 | jg @f |
255 | lea ebx, [sock_sysfn_table + 4*ebx] |
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1254 | hidnplayr | 256 | jmp dword [ebx] |
1529 | hidnplayr | 257 | @@: |
258 | cmp ebx, 255 |
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259 | jz SOCKET_debug |
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1159 | hidnplayr | 260 | |
1529 | hidnplayr | 261 | s_error: |
262 | DEBUGF 1,"socket error\n" |
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263 | mov dword [esp+32], -1 |
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264 | |||
265 | ret |
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266 | |||
1536 | hidnplayr | 267 | align 4 |
1529 | hidnplayr | 268 | sock_sysfn_table: |
1514 | hidnplayr | 269 | dd SOCKET_open ; 0 |
270 | dd SOCKET_close ; 1 |
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271 | dd SOCKET_bind ; 2 |
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272 | dd SOCKET_listen ; 3 |
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273 | dd SOCKET_connect ; 4 |
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274 | dd SOCKET_accept ; 5 |
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275 | dd SOCKET_send ; 6 |
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276 | dd SOCKET_receive ; 7 |
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277 | dd SOCKET_get_opt ; 8 |
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278 | ; dd SOCKET_set_opt ; 9 |
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1159 | hidnplayr | 279 | |
1254 | hidnplayr | 280 | |
1159 | hidnplayr | 281 | |
1257 | hidnplayr | 282 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 283 | ; |
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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1196 | hidnplayr | 288 | ; protocol in esi |
1159 | hidnplayr | 289 | ; OUT: eax is socket num, -1 on error |
290 | ; |
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1257 | hidnplayr | 291 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 292 | align 4 |
1514 | hidnplayr | 293 | SOCKET_open: |
1159 | hidnplayr | 294 | |
1536 | hidnplayr | 295 | DEBUGF 1,"SOCKET_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi |
1159 | hidnplayr | 296 | |
1514 | hidnplayr | 297 | call SOCKET_alloc |
1185 | hidnplayr | 298 | jz s_error |
1159 | hidnplayr | 299 | |
1514 | hidnplayr | 300 | mov [eax + SOCKET.Domain], ecx |
301 | mov [eax + SOCKET.Type], edx |
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302 | mov [eax + SOCKET.Protocol], esi |
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1159 | hidnplayr | 303 | |
1536 | hidnplayr | 304 | mov [esp+32], edi ; return socketnumber |
1318 | hidnplayr | 305 | |
1529 | hidnplayr | 306 | cmp ecx, AF_INET4 |
1536 | hidnplayr | 307 | jne .no_inet4 |
1529 | hidnplayr | 308 | |
1536 | hidnplayr | 309 | push [IP_LIST] |
310 | pop [eax + IP_SOCKET.LocalIP] ; fill in local ip number |
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1529 | hidnplayr | 311 | |
1536 | hidnplayr | 312 | call SOCKET_find_port ; fill in a local port number, application may change it later, or use this one |
313 | |||
314 | cmp edx, IP_PROTO_UDP |
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315 | je .udp |
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316 | |||
1529 | hidnplayr | 317 | cmp edx, IP_PROTO_TCP |
1536 | hidnplayr | 318 | je .tcp |
1529 | hidnplayr | 319 | |
1541 | hidnplayr | 320 | cmp edx, SOCK_RAW |
321 | je .raw |
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322 | |||
1536 | hidnplayr | 323 | .no_inet4: |
324 | ret |
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325 | |||
326 | .tcp: |
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1533 | hidnplayr | 327 | mov ebx, eax |
1529 | hidnplayr | 328 | |
1533 | hidnplayr | 329 | lea eax, [ebx + STREAM_SOCKET.snd] |
330 | call SOCKET_ring_create |
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1529 | hidnplayr | 331 | |
1533 | hidnplayr | 332 | lea eax, [ebx + STREAM_SOCKET.rcv] |
333 | call SOCKET_ring_create |
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334 | |||
1536 | hidnplayr | 335 | mov [ebx + SOCKET.snd_proc], SOCKET_send_tcp |
336 | mov [ebx + SOCKET.rcv_proc], SOCKET_receive_tcp |
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337 | |||
1159 | hidnplayr | 338 | ret |
339 | |||
1536 | hidnplayr | 340 | .udp: |
341 | push eax |
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1529 | hidnplayr | 342 | init_queue (eax + SOCKET_QUEUE_LOCATION) |
1536 | hidnplayr | 343 | pop eax |
1159 | hidnplayr | 344 | |
1536 | hidnplayr | 345 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
1541 | hidnplayr | 346 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
1536 | hidnplayr | 347 | |
1529 | hidnplayr | 348 | ret |
349 | |||
1541 | hidnplayr | 350 | .raw: |
351 | ; test esi, esi |
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352 | ; jz .ip |
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1529 | hidnplayr | 353 | |
1541 | hidnplayr | 354 | cmp esi, IP_PROTO_ICMP |
355 | je .icmp |
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1529 | hidnplayr | 356 | |
1541 | hidnplayr | 357 | ret |
358 | |||
359 | ; .ip: |
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360 | ; push eax |
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361 | ; init_queue (eax + SOCKET_QUEUE_LOCATION) |
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362 | ; pop eax |
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363 | ; |
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364 | ; mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
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365 | ; mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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366 | ; |
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367 | ; ret |
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368 | |||
369 | .icmp: |
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370 | push eax |
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371 | init_queue (eax + SOCKET_QUEUE_LOCATION) |
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372 | pop eax |
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373 | |||
374 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
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375 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
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376 | |||
377 | ret |
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378 | |||
379 | |||
380 | |||
1257 | hidnplayr | 381 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 382 | ; |
383 | ; SOCKET_bind |
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384 | ; |
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385 | ; IN: socket number in ecx |
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386 | ; pointer to sockaddr struct in edx |
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387 | ; length of that struct in esi |
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388 | ; OUT: 0 on success |
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389 | ; |
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1257 | hidnplayr | 390 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 391 | align 4 |
1514 | hidnplayr | 392 | SOCKET_bind: |
1159 | hidnplayr | 393 | |
1514 | hidnplayr | 394 | DEBUGF 1,"socket_bind: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 395 | |
1514 | hidnplayr | 396 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 397 | jz s_error |
1159 | hidnplayr | 398 | |
399 | cmp esi, 2 |
||
1185 | hidnplayr | 400 | jl s_error |
1159 | hidnplayr | 401 | |
402 | cmp word [edx], AF_INET4 |
||
1249 | hidnplayr | 403 | je .af_inet4 |
1159 | hidnplayr | 404 | |
1249 | hidnplayr | 405 | cmp word [edx], AF_UNIX |
406 | je .af_unix |
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407 | |||
408 | jmp s_error |
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409 | |||
410 | .af_unix: |
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411 | |||
412 | ; TODO: write code here |
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413 | |||
1514 | hidnplayr | 414 | mov dword [esp+32], 0 |
1249 | hidnplayr | 415 | ret |
416 | |||
1159 | hidnplayr | 417 | .af_inet4: |
418 | |||
1514 | hidnplayr | 419 | DEBUGF 1,"af_inet4\n" |
420 | |||
1159 | hidnplayr | 421 | cmp esi, 6 |
1185 | hidnplayr | 422 | jl s_error |
1159 | hidnplayr | 423 | |
1514 | hidnplayr | 424 | mov ecx, [eax + SOCKET.Type] |
1249 | hidnplayr | 425 | |
1159 | hidnplayr | 426 | mov bx, word [edx + 2] |
427 | test bx, bx |
||
1536 | hidnplayr | 428 | jz .use_preset_port |
1159 | hidnplayr | 429 | |
1514 | hidnplayr | 430 | call SOCKET_check_port |
431 | jz s_error |
||
1159 | hidnplayr | 432 | |
1519 | hidnplayr | 433 | DEBUGF 1,"using local port: %u\n", bx |
1514 | hidnplayr | 434 | mov word [eax + UDP_SOCKET.LocalPort], bx |
1159 | hidnplayr | 435 | |
1536 | hidnplayr | 436 | .use_preset_port: |
437 | |||
1159 | hidnplayr | 438 | DEBUGF 1,"local ip: %u.%u.%u.%u\n",\ |
1514 | hidnplayr | 439 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
440 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 441 | |
1514 | hidnplayr | 442 | mov dword [esp+32], 0 |
1159 | hidnplayr | 443 | ret |
444 | |||
445 | |||
446 | |||
447 | |||
1257 | hidnplayr | 448 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 449 | ; |
450 | ; SOCKET_connect |
||
451 | ; |
||
452 | ; IN: socket number in ecx |
||
453 | ; pointer to sockaddr struct in edx |
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454 | ; length of that struct in esi |
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455 | ; OUT: 0 on success |
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456 | ; |
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1257 | hidnplayr | 457 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 458 | align 4 |
1514 | hidnplayr | 459 | SOCKET_connect: |
1159 | hidnplayr | 460 | |
1541 | hidnplayr | 461 | DEBUGF 1,"SOCKET_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 462 | |
1514 | hidnplayr | 463 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 464 | jz s_error |
1159 | hidnplayr | 465 | |
1254 | hidnplayr | 466 | cmp esi, 8 |
1185 | hidnplayr | 467 | jl s_error |
1159 | hidnplayr | 468 | |
469 | cmp word [edx], AF_INET4 |
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470 | je .af_inet4 |
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471 | |||
1185 | hidnplayr | 472 | jmp s_error |
1159 | hidnplayr | 473 | |
474 | .af_inet4: |
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475 | |||
1514 | hidnplayr | 476 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
1159 | hidnplayr | 477 | je .udp |
478 | |||
1514 | hidnplayr | 479 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 480 | je .tcp |
1159 | hidnplayr | 481 | |
1541 | hidnplayr | 482 | cmp [eax + SOCKET.Type], SOCK_RAW |
483 | je .raw |
||
484 | |||
1185 | hidnplayr | 485 | jmp s_error |
1159 | hidnplayr | 486 | |
1254 | hidnplayr | 487 | .udp: |
1159 | hidnplayr | 488 | mov bx , word [edx + 2] |
1514 | hidnplayr | 489 | mov word [eax + UDP_SOCKET.RemotePort], bx |
490 | mov [eax + UDP_SOCKET.firstpacket], 0 |
||
1519 | hidnplayr | 491 | DEBUGF 1,"remote port: %u\n",bx |
1159 | hidnplayr | 492 | |
493 | mov ebx, dword [edx + 4] |
||
1514 | hidnplayr | 494 | mov dword [eax + IP_SOCKET.RemoteIP], ebx |
1159 | hidnplayr | 495 | DEBUGF 1,"remote ip: %u.%u.%u.%u\n",[edx+4]:1,[edx+5]:1,[edx+6]:1,[edx+7]:1 |
496 | |||
1514 | hidnplayr | 497 | mov dword [esp+32], 0 |
1159 | hidnplayr | 498 | ret |
499 | |||
500 | |||
1254 | hidnplayr | 501 | .tcp: |
1514 | hidnplayr | 502 | lea ebx, [eax + SOCKET.lock] |
1281 | hidnplayr | 503 | call wait_mutex |
1159 | hidnplayr | 504 | |
1254 | hidnplayr | 505 | ; fill in remote port and IP |
1159 | hidnplayr | 506 | |
1254 | hidnplayr | 507 | mov bx , word [edx + 2] |
1514 | hidnplayr | 508 | mov [eax + TCP_SOCKET.RemotePort], bx |
1519 | hidnplayr | 509 | DEBUGF 1,"remote port: %u\n", bx |
1159 | hidnplayr | 510 | |
1254 | hidnplayr | 511 | mov ebx, dword [edx + 4] |
1514 | hidnplayr | 512 | mov [eax + IP_SOCKET.RemoteIP], ebx |
1159 | hidnplayr | 513 | |
1529 | hidnplayr | 514 | ;;;;; |
515 | mov [eax + TCP_SOCKET.timer_persist], 0 |
||
516 | mov [eax + TCP_SOCKET.t_state], TCB_SYN_SENT |
||
517 | mov ebx, [TCP_sequence_num] |
||
518 | add [TCP_sequence_num], 6400 |
||
519 | mov [eax + TCP_SOCKET.ISS], ebx |
||
1533 | hidnplayr | 520 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
1519 | hidnplayr | 521 | |
1533 | hidnplayr | 522 | TCP_sendseqinit eax |
1529 | hidnplayr | 523 | |
1533 | hidnplayr | 524 | ;;;; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
525 | |||
1529 | hidnplayr | 526 | push eax |
1514 | hidnplayr | 527 | call TCP_output |
1529 | hidnplayr | 528 | pop eax |
1159 | hidnplayr | 529 | |
1514 | hidnplayr | 530 | mov [eax + SOCKET.lock], 0 |
1159 | hidnplayr | 531 | |
1514 | hidnplayr | 532 | mov dword [esp+32], 0 ; success! |
1159 | hidnplayr | 533 | ret |
534 | |||
1541 | hidnplayr | 535 | .raw: |
536 | push dword [edx + 4] |
||
537 | pop dword [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 538 | |
1541 | hidnplayr | 539 | mov dword [esp+32], 0 ; success! |
540 | ret |
||
541 | |||
542 | |||
1257 | hidnplayr | 543 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 544 | ; |
545 | ; SOCKET_listen |
||
546 | ; |
||
547 | ; IN: socket number in ecx |
||
548 | ; backlog in edx |
||
549 | ; OUT: eax is socket num, -1 on error |
||
550 | ; |
||
1257 | hidnplayr | 551 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 552 | align 4 |
1514 | hidnplayr | 553 | SOCKET_listen: |
1159 | hidnplayr | 554 | |
1541 | hidnplayr | 555 | DEBUGF 1,"SOCKET_listen: socknum: %u backlog: %u\n", ecx, edx |
1159 | hidnplayr | 556 | |
1514 | hidnplayr | 557 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 558 | jz s_error |
1159 | hidnplayr | 559 | |
1514 | hidnplayr | 560 | cmp word [eax + SOCKET.Domain], AF_INET4 |
1254 | hidnplayr | 561 | jne s_error |
562 | |||
1514 | hidnplayr | 563 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1254 | hidnplayr | 564 | jne s_error |
565 | |||
1514 | hidnplayr | 566 | ; TODO: check local port number |
567 | |||
1159 | hidnplayr | 568 | cmp edx, MAX_backlog |
1514 | hidnplayr | 569 | jle .ok |
570 | mov edx, MAX_backlog |
||
1159 | hidnplayr | 571 | .ok: |
572 | |||
1514 | hidnplayr | 573 | mov [eax + TCP_SOCKET.backlog], dx |
574 | mov [eax + TCP_SOCKET.t_state], TCB_LISTEN |
||
575 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
1159 | hidnplayr | 576 | |
577 | mov dword [esp+32], 0 |
||
1514 | hidnplayr | 578 | |
1159 | hidnplayr | 579 | ret |
580 | |||
581 | |||
1257 | hidnplayr | 582 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 583 | ; |
584 | ; SOCKET_accept |
||
585 | ; |
||
586 | ; IN: socket number in ecx |
||
587 | ; addr in edx |
||
588 | ; addrlen in esi |
||
589 | ; OUT: eax is socket num, -1 on error |
||
590 | ; |
||
1257 | hidnplayr | 591 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 592 | align 4 |
1514 | hidnplayr | 593 | SOCKET_accept: |
1159 | hidnplayr | 594 | |
1541 | hidnplayr | 595 | DEBUGF 1,"SOCKET_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 596 | |
1514 | hidnplayr | 597 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 598 | jz s_error |
1159 | hidnplayr | 599 | |
1514 | hidnplayr | 600 | cmp word [eax + SOCKET.Domain], AF_INET4 |
1249 | hidnplayr | 601 | je .af_inet4 |
602 | |||
603 | jmp s_error |
||
604 | |||
605 | .af_inet4: |
||
606 | |||
1514 | hidnplayr | 607 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1249 | hidnplayr | 608 | je .tcp |
609 | |||
610 | jmp s_error |
||
611 | |||
612 | .tcp: |
||
613 | |||
1514 | hidnplayr | 614 | lea ebx, [eax + SOCKET.lock] |
1256 | clevermous | 615 | call wait_mutex |
1514 | hidnplayr | 616 | |
617 | movzx ebx, [eax + TCP_SOCKET.backlog_cur] |
||
618 | test ebx, ebx |
||
1256 | clevermous | 619 | jz .unlock_err |
1514 | hidnplayr | 620 | |
1536 | hidnplayr | 621 | dec [eax + TCP_SOCKET.backlog_cur] ;;;; |
622 | mov eax, [eax + TCP_SOCKET.end + (ebx-1)*4] ;;;;; |
||
623 | mov [eax + SOCKET.lock], 0 ;;;; |
||
624 | mov dword [esp+32], 0 ;;;; |
||
1514 | hidnplayr | 625 | |
626 | call TCP_output ;;;;; |
||
627 | |||
1159 | hidnplayr | 628 | ret |
1514 | hidnplayr | 629 | |
1256 | clevermous | 630 | .unlock_err: |
1514 | hidnplayr | 631 | mov [eax + SOCKET.lock], 0 |
1256 | clevermous | 632 | jmp s_error |
1159 | hidnplayr | 633 | |
634 | |||
1257 | hidnplayr | 635 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 636 | ; |
637 | ; SOCKET_close |
||
638 | ; |
||
639 | ; IN: socket number in ecx |
||
640 | ; OUT: eax is socket num, -1 on error |
||
641 | ; |
||
1257 | hidnplayr | 642 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 643 | align 4 |
1514 | hidnplayr | 644 | SOCKET_close: |
1159 | hidnplayr | 645 | |
1541 | hidnplayr | 646 | DEBUGF 1,"SOCKET_close: socknum: %u\n", ecx |
1159 | hidnplayr | 647 | |
1514 | hidnplayr | 648 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 649 | jz s_error |
1159 | hidnplayr | 650 | |
1514 | hidnplayr | 651 | cmp [eax + SOCKET.Domain], AF_INET4 |
1249 | hidnplayr | 652 | jne s_error |
1159 | hidnplayr | 653 | |
1514 | hidnplayr | 654 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
655 | je .free |
||
1159 | hidnplayr | 656 | |
1514 | hidnplayr | 657 | cmp [eax + SOCKET.Type], IP_PROTO_ICMP |
658 | je .free |
||
1159 | hidnplayr | 659 | |
1514 | hidnplayr | 660 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 661 | je .tcp |
1159 | hidnplayr | 662 | |
1185 | hidnplayr | 663 | jmp s_error |
1159 | hidnplayr | 664 | |
665 | .tcp: |
||
1536 | hidnplayr | 666 | cmp [eax + TCP_SOCKET.t_state], TCB_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
667 | jl .free |
||
1318 | hidnplayr | 668 | |
1536 | hidnplayr | 669 | call TCP_output |
670 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 671 | |
1536 | hidnplayr | 672 | ret |
1159 | hidnplayr | 673 | |
1514 | hidnplayr | 674 | .free: |
675 | call SOCKET_free |
||
676 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 677 | |
678 | ret |
||
679 | |||
680 | |||
1257 | hidnplayr | 681 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 682 | ; |
683 | ; SOCKET_receive |
||
684 | ; |
||
685 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 686 | ; addr to buffer in edx |
687 | ; length of buffer in esi |
||
1159 | hidnplayr | 688 | ; flags in edi |
689 | ; OUT: eax is number of bytes copied, -1 on error |
||
690 | ; |
||
1257 | hidnplayr | 691 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 692 | align 4 |
1514 | hidnplayr | 693 | SOCKET_receive: |
1159 | hidnplayr | 694 | |
1536 | hidnplayr | 695 | DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi |
1514 | hidnplayr | 696 | |
697 | call SOCKET_num_to_ptr |
||
1185 | hidnplayr | 698 | jz s_error |
1159 | hidnplayr | 699 | |
1536 | hidnplayr | 700 | jmp [eax + SOCKET.rcv_proc] |
1533 | hidnplayr | 701 | |
1536 | hidnplayr | 702 | |
703 | align 4 |
||
1541 | hidnplayr | 704 | SOCKET_receive_dgram: |
1536 | hidnplayr | 705 | |
1541 | hidnplayr | 706 | DEBUGF 1,"SOCKET_receive: DGRAM\n" |
1536 | hidnplayr | 707 | |
1281 | hidnplayr | 708 | mov ebx, esi |
1514 | hidnplayr | 709 | mov edi, edx ; addr to buffer |
1159 | hidnplayr | 710 | |
1536 | hidnplayr | 711 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, socket_queue_entry.size, s_error ; destroys esi and ecx |
712 | |||
1249 | hidnplayr | 713 | mov ecx, [esi + socket_queue_entry.data_size] |
714 | DEBUGF 1,"Got %u bytes of data\n", ecx |
||
1159 | hidnplayr | 715 | |
1281 | hidnplayr | 716 | cmp ecx, ebx |
1536 | hidnplayr | 717 | jg .too_small |
1514 | hidnplayr | 718 | |
1536 | hidnplayr | 719 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
1514 | hidnplayr | 720 | mov esi, [esi + socket_queue_entry.data_ptr] |
1249 | hidnplayr | 721 | DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi |
1536 | hidnplayr | 722 | mov dword[esp+32+4], ecx ; return number of bytes copied |
1159 | hidnplayr | 723 | |
1514 | hidnplayr | 724 | ; copy the data |
1249 | hidnplayr | 725 | shr ecx, 1 |
726 | jnc .nb |
||
727 | movsb |
||
1536 | hidnplayr | 728 | .nb: |
729 | shr ecx, 1 |
||
1249 | hidnplayr | 730 | jnc .nw |
731 | movsw |
||
1536 | hidnplayr | 732 | .nw: |
733 | test ecx, ecx |
||
1274 | hidnplayr | 734 | jz .nd |
735 | rep movsd |
||
1536 | hidnplayr | 736 | .nd: |
1159 | hidnplayr | 737 | |
1536 | hidnplayr | 738 | call kernel_free ; remove the packet |
1533 | hidnplayr | 739 | ret |
1514 | hidnplayr | 740 | |
1536 | hidnplayr | 741 | .too_small: |
1533 | hidnplayr | 742 | |
1536 | hidnplayr | 743 | DEBUGF 1,"Buffer too small...\n" |
744 | jmp s_error |
||
745 | |||
746 | align 4 |
||
747 | SOCKET_receive_tcp: |
||
748 | |||
1541 | hidnplayr | 749 | DEBUGF 1,"SOCKET_receive: TCP\n" |
1536 | hidnplayr | 750 | |
1533 | hidnplayr | 751 | mov ecx, esi |
752 | mov edi, edx |
||
753 | add eax, STREAM_SOCKET.rcv |
||
754 | call SOCKET_ring_read |
||
1534 | hidnplayr | 755 | call SOCKET_ring_free |
1533 | hidnplayr | 756 | |
1536 | hidnplayr | 757 | mov dword[esp+32], ecx ; return number of bytes copied |
1533 | hidnplayr | 758 | |
1159 | hidnplayr | 759 | ret |
760 | |||
761 | |||
1257 | hidnplayr | 762 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 763 | ; |
764 | ; SOCKET_send |
||
765 | ; |
||
766 | ; |
||
767 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 768 | ; pointer to data in edx |
769 | ; datalength in esi |
||
1159 | hidnplayr | 770 | ; flags in edi |
771 | ; OUT: -1 on error |
||
772 | ; |
||
1257 | hidnplayr | 773 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 774 | align 4 |
1514 | hidnplayr | 775 | SOCKET_send: |
1159 | hidnplayr | 776 | |
1541 | hidnplayr | 777 | DEBUGF 1,"SOCKET_send: socknum: %u data ptr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi |
1159 | hidnplayr | 778 | |
1514 | hidnplayr | 779 | call SOCKET_num_to_ptr |
1185 | hidnplayr | 780 | jz s_error |
1159 | hidnplayr | 781 | |
1536 | hidnplayr | 782 | jmp [eax + SOCKET.snd_proc] |
1206 | hidnplayr | 783 | |
784 | |||
1536 | hidnplayr | 785 | align 4 |
786 | SOCKET_send_udp: |
||
1529 | hidnplayr | 787 | |
1541 | hidnplayr | 788 | DEBUGF 1,"SOCKET_send: UDP\n" |
1159 | hidnplayr | 789 | |
790 | mov ecx, esi |
||
791 | mov esi, edx |
||
792 | |||
1514 | hidnplayr | 793 | call UDP_output |
1159 | hidnplayr | 794 | |
1514 | hidnplayr | 795 | mov dword [esp+32], 0 |
1159 | hidnplayr | 796 | ret |
797 | |||
798 | |||
1536 | hidnplayr | 799 | align 4 |
800 | SOCKET_send_tcp: |
||
1254 | hidnplayr | 801 | |
1541 | hidnplayr | 802 | DEBUGF 1,"SOCKET_send: TCP\n" |
1254 | hidnplayr | 803 | |
1533 | hidnplayr | 804 | push eax |
805 | mov ecx, esi |
||
806 | mov esi, edx |
||
807 | add eax, STREAM_SOCKET.snd |
||
808 | call SOCKET_ring_write |
||
809 | pop eax |
||
1536 | hidnplayr | 810 | |
1514 | hidnplayr | 811 | call TCP_output |
1254 | hidnplayr | 812 | |
1249 | hidnplayr | 813 | mov [esp+32], eax |
814 | ret |
||
1159 | hidnplayr | 815 | |
1249 | hidnplayr | 816 | |
1541 | hidnplayr | 817 | ;align 4 |
818 | ;SOCKET_send_ip: |
||
819 | ; |
||
820 | ; DEBUGF 1,"type: IP\n" |
||
821 | ; |
||
822 | ; mov ecx, esi |
||
823 | ; mov esi, edx |
||
824 | ; |
||
825 | ; call IPv4_output_raw |
||
826 | ; |
||
827 | ; mov dword [esp+32], eax |
||
828 | ; ret |
||
1249 | hidnplayr | 829 | |
1541 | hidnplayr | 830 | align 4 |
831 | SOCKET_send_icmp: |
||
1249 | hidnplayr | 832 | |
1541 | hidnplayr | 833 | DEBUGF 1,"SOCKET_send: ICMP\n" |
834 | |||
835 | mov ecx, esi |
||
836 | call ICMP_output_raw |
||
837 | |||
838 | mov dword [esp+32], 0 |
||
839 | ret |
||
840 | |||
841 | |||
842 | |||
843 | |||
1257 | hidnplayr | 844 | ;----------------------------------------------------------------- |
1256 | clevermous | 845 | ; |
1257 | hidnplayr | 846 | ; SOCKET_get_options |
1256 | clevermous | 847 | ; |
1514 | hidnplayr | 848 | ; IN: ecx = socket number |
849 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 850 | ; dd level, optname, optval, optlen |
1256 | clevermous | 851 | ; OUT: -1 on error |
852 | ; |
||
853 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
854 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1299 | clevermous | 855 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCB_*. |
1256 | clevermous | 856 | ; |
1257 | hidnplayr | 857 | ;----------------------------------------------------------------- |
858 | align 4 |
||
1514 | hidnplayr | 859 | SOCKET_get_opt: |
1257 | hidnplayr | 860 | |
1536 | hidnplayr | 861 | DEBUGF 1,"SOCKET_get_opt\n" |
1514 | hidnplayr | 862 | |
863 | call SOCKET_num_to_ptr |
||
864 | jz s_error |
||
865 | |||
1256 | clevermous | 866 | cmp dword [edx], IP_PROTO_TCP |
1514 | hidnplayr | 867 | jnz s_error |
1256 | clevermous | 868 | cmp dword [edx+4], -2 |
1299 | clevermous | 869 | jz @f |
870 | cmp dword [edx+4], -3 |
||
1514 | hidnplayr | 871 | jnz s_error |
1299 | clevermous | 872 | @@: |
1514 | hidnplayr | 873 | ; mov eax, [edx+12] |
874 | ; test eax, eax |
||
875 | ; jz .fail |
||
876 | ; cmp dword [eax], 4 |
||
877 | ; mov dword [eax], 4 |
||
878 | ; jb .fail |
||
879 | ; stdcall net_socket_num_to_addr, ecx |
||
880 | ; test eax, eax |
||
881 | ; jz .fail |
||
882 | ; ; todo: check that eax is really TCP socket |
||
883 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
884 | ; cmp dword [edx+4], -2 |
||
885 | ; jz @f |
||
886 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 887 | @@: |
1256 | clevermous | 888 | mov eax, [edx+8] |
889 | test eax, eax |
||
890 | jz @f |
||
891 | mov [eax], ecx |
||
892 | @@: |
||
1257 | hidnplayr | 893 | mov dword [esp+32], 0 |
1256 | clevermous | 894 | ret |
1159 | hidnplayr | 895 | |
896 | |||
1529 | hidnplayr | 897 | |
1257 | hidnplayr | 898 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 899 | ; |
1529 | hidnplayr | 900 | ; SOCKET_debug |
901 | ; |
||
902 | ; Copies socket variables to application buffer |
||
903 | ; |
||
904 | ; IN: ecx = socket number |
||
905 | ; edx = pointer to buffer |
||
906 | ; |
||
907 | ; OUT: -1 on error |
||
908 | ;----------------------------------------------------------------- |
||
909 | align 4 |
||
910 | SOCKET_debug: |
||
911 | |||
912 | DEBUGF 1,"socket_debug\n" |
||
913 | |||
914 | call SOCKET_num_to_ptr |
||
915 | jz s_error |
||
916 | |||
917 | mov esi, eax |
||
918 | mov edi, edx |
||
919 | mov ecx, SOCKETBUFFSIZE/4 |
||
920 | rep movsd |
||
921 | |||
922 | mov dword [esp+32], 0 |
||
923 | ret |
||
924 | |||
925 | |||
926 | ;----------------------------------------------------------------- |
||
927 | ; |
||
1514 | hidnplayr | 928 | ; SOCKET_find_port |
1206 | hidnplayr | 929 | ; |
1514 | hidnplayr | 930 | ; Fills in the local port number for TCP and UDP sockets |
931 | ; This procedure always works because the number of sockets is |
||
932 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 933 | ; |
1514 | hidnplayr | 934 | ; IN: eax = socket pointer |
935 | ; OUT: / |
||
1206 | hidnplayr | 936 | ; |
1257 | hidnplayr | 937 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 938 | align 4 |
1514 | hidnplayr | 939 | SOCKET_find_port: |
1159 | hidnplayr | 940 | |
1536 | hidnplayr | 941 | DEBUGF 1,"SOCKET_find_port\n" |
1159 | hidnplayr | 942 | |
1514 | hidnplayr | 943 | push ebx esi ecx |
944 | |||
945 | cmp [eax + SOCKET.Type], IP_PROTO_UDP |
||
1206 | hidnplayr | 946 | je .udp |
1159 | hidnplayr | 947 | |
1514 | hidnplayr | 948 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
1206 | hidnplayr | 949 | je .tcp |
1159 | hidnplayr | 950 | |
1514 | hidnplayr | 951 | jmp .error |
952 | |||
953 | .done: |
||
954 | mov [eax + UDP_SOCKET.LocalPort], bx |
||
955 | .error: |
||
956 | pop ecx esi ebx |
||
957 | ret |
||
958 | |||
1206 | hidnplayr | 959 | .udp: |
960 | mov bx, [last_UDP_port] |
||
1514 | hidnplayr | 961 | call .findit |
962 | mov [last_UDP_port], bx |
||
963 | jmp .done |
||
1206 | hidnplayr | 964 | |
965 | .tcp: |
||
966 | mov bx, [last_TCP_port] |
||
1514 | hidnplayr | 967 | call .findit |
968 | mov [last_TCP_port], bx |
||
969 | jmp .done |
||
1206 | hidnplayr | 970 | |
971 | |||
1514 | hidnplayr | 972 | .restart: |
973 | mov bx, MIN_EPHEMERAL_PORT |
||
974 | .findit: |
||
1206 | hidnplayr | 975 | inc bx |
976 | |||
977 | cmp bx, MAX_EPHEMERAL_PORT |
||
1514 | hidnplayr | 978 | jz .restart |
1206 | hidnplayr | 979 | |
1514 | hidnplayr | 980 | call SOCKET_check_port |
981 | jz .findit |
||
1206 | hidnplayr | 982 | |
983 | ret |
||
984 | |||
1257 | hidnplayr | 985 | |
986 | |||
987 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 988 | ; |
1514 | hidnplayr | 989 | ; SOCKET_check_port |
1206 | hidnplayr | 990 | ; |
1514 | hidnplayr | 991 | ; Checks if a local port number is unused |
992 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 993 | ; |
1514 | hidnplayr | 994 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
995 | ; bx = proposed socket number |
||
1206 | hidnplayr | 996 | ; |
1514 | hidnplayr | 997 | ; OUT: ZF = cleared on error |
998 | ; |
||
1257 | hidnplayr | 999 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1000 | align 4 |
1514 | hidnplayr | 1001 | SOCKET_check_port: |
1002 | |||
1536 | hidnplayr | 1003 | DEBUGF 1,"SOCKET_check_port\n" |
1514 | hidnplayr | 1004 | |
1005 | mov ecx, [eax + SOCKET.Type] |
||
1206 | hidnplayr | 1006 | mov esi, net_sockets |
1007 | |||
1008 | .next_socket: |
||
1514 | hidnplayr | 1009 | mov esi, [esi + SOCKET.NextPtr] |
1206 | hidnplayr | 1010 | or esi, esi |
1011 | jz .port_ok |
||
1012 | |||
1514 | hidnplayr | 1013 | cmp [esi + SOCKET.Type], ecx |
1206 | hidnplayr | 1014 | jne .next_socket |
1015 | |||
1514 | hidnplayr | 1016 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1206 | hidnplayr | 1017 | jne .next_socket |
1018 | |||
1514 | hidnplayr | 1019 | DEBUGF 1,"local port %u already in use\n", bx |
1020 | ret |
||
1206 | hidnplayr | 1021 | |
1022 | .port_ok: |
||
1514 | hidnplayr | 1023 | mov [eax + UDP_SOCKET.LocalPort], bx |
1024 | or bx, bx ; set the zero-flag |
||
1025 | |||
1206 | hidnplayr | 1026 | ret |
1027 | |||
1028 | |||
1257 | hidnplayr | 1029 | |
1030 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1031 | ; |
1514 | hidnplayr | 1032 | ; SOCKET_input |
1206 | hidnplayr | 1033 | ; |
1536 | hidnplayr | 1034 | ; Updates a (stateless) socket with received data |
1206 | hidnplayr | 1035 | ; |
1514 | hidnplayr | 1036 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 1037 | ; |
1249 | hidnplayr | 1038 | ; IN: eax = socket ptr |
1514 | hidnplayr | 1039 | ; ebx = pointer to device struct |
1040 | ; ecx = data size |
||
1041 | ; esi = ptr to data |
||
1042 | ; [esp] = ptr to buf |
||
1043 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1044 | ; |
1514 | hidnplayr | 1045 | ; OUT: / |
1206 | hidnplayr | 1046 | ; |
1257 | hidnplayr | 1047 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1048 | align 4 |
1514 | hidnplayr | 1049 | SOCKET_input: |
1206 | hidnplayr | 1050 | |
1536 | hidnplayr | 1051 | DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1052 | |
1514 | hidnplayr | 1053 | mov dword[esp+4], ecx |
1054 | push esi |
||
1249 | hidnplayr | 1055 | mov esi, esp |
1514 | hidnplayr | 1056 | |
1536 | hidnplayr | 1057 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, socket_queue_entry.size, SOCKET_input.full |
1514 | hidnplayr | 1058 | |
1541 | hidnplayr | 1059 | DEBUGF 1,"SOCKET_input: queued packet successfully\n" |
1257 | hidnplayr | 1060 | add esp, socket_queue_entry.size |
1514 | hidnplayr | 1061 | mov [eax + SOCKET.lock], 0 |
1062 | jmp SOCKET_notify_owner |
||
1206 | hidnplayr | 1063 | |
1514 | hidnplayr | 1064 | .full: |
1541 | hidnplayr | 1065 | DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax |
1514 | hidnplayr | 1066 | mov [eax + SOCKET.lock], 0 |
1067 | call kernel_free |
||
1068 | add esp, 8 |
||
1206 | hidnplayr | 1069 | |
1514 | hidnplayr | 1070 | ret |
1071 | |||
1533 | hidnplayr | 1072 | |
1073 | ;-------------------------- |
||
1074 | ; |
||
1075 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1076 | ; |
||
1077 | align 4 |
||
1078 | SOCKET_ring_create: |
||
1079 | |||
1080 | mov esi, eax |
||
1081 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1082 | |||
1083 | DEBUGF 1,"SOCKET_ring_created: %x\n", eax |
||
1084 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1085 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1086 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1087 | mov [esi + RING_BUFFER.size], 0 |
||
1088 | add eax, SOCKET_MAXDATA |
||
1089 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1090 | |||
1091 | ret |
||
1092 | |||
1514 | hidnplayr | 1093 | ;----------------------------------------------------------------- |
1094 | ; |
||
1533 | hidnplayr | 1095 | ; SOCKET_ring_write |
1529 | hidnplayr | 1096 | ; |
1533 | hidnplayr | 1097 | ; Adds data to a stream socket, and updates write pointer and size |
1529 | hidnplayr | 1098 | ; |
1099 | ; IN: eax = ptr to ring struct |
||
1100 | ; ecx = data size |
||
1101 | ; esi = ptr to data |
||
1102 | ; |
||
1533 | hidnplayr | 1103 | ; OUT: ecx = number of bytes stored |
1529 | hidnplayr | 1104 | ; |
1105 | ;----------------------------------------------------------------- |
||
1106 | align 4 |
||
1533 | hidnplayr | 1107 | SOCKET_ring_write: |
1529 | hidnplayr | 1108 | |
1533 | hidnplayr | 1109 | DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
1529 | hidnplayr | 1110 | |
1533 | hidnplayr | 1111 | add [eax + RING_BUFFER.size], ecx |
1112 | cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA |
||
1529 | hidnplayr | 1113 | jg .too_large |
1114 | |||
1115 | .copy: |
||
1533 | hidnplayr | 1116 | mov edi, [eax + RING_BUFFER.write_ptr] |
1541 | hidnplayr | 1117 | DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
1529 | hidnplayr | 1118 | |
1119 | push ecx |
||
1533 | hidnplayr | 1120 | shr ecx, 1 |
1121 | jnc .nb |
||
1122 | movsb |
||
1536 | hidnplayr | 1123 | .nb: |
1533 | hidnplayr | 1124 | shr ecx, 1 |
1125 | jnc .nw |
||
1126 | movsw |
||
1536 | hidnplayr | 1127 | .nw: |
1533 | hidnplayr | 1128 | test ecx, ecx |
1129 | jz .nd |
||
1130 | rep movsd |
||
1536 | hidnplayr | 1131 | .nd: |
1529 | hidnplayr | 1132 | pop ecx |
1133 | |||
1533 | hidnplayr | 1134 | cmp edi, [eax + RING_BUFFER.end_ptr] |
1135 | jge .wrap |
||
1136 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1137 | |||
1529 | hidnplayr | 1138 | ret |
1139 | |||
1533 | hidnplayr | 1140 | .wrap: |
1141 | sub edi, SOCKET_MAXDATA |
||
1142 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1143 | |||
1144 | ret |
||
1145 | |||
1529 | hidnplayr | 1146 | .too_large: |
1147 | mov ecx, SOCKET_MAXDATA ; calculate number of bytes available in buffer |
||
1148 | sub ecx, [eax + RING_BUFFER.size] |
||
1533 | hidnplayr | 1149 | jge .full |
1529 | hidnplayr | 1150 | |
1151 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA ; update size, we will fill buffer completely |
||
1152 | jmp .copy |
||
1153 | |||
1154 | .full: |
||
1541 | hidnplayr | 1155 | DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n" |
1529 | hidnplayr | 1156 | xor ecx, ecx |
1157 | ret |
||
1158 | |||
1159 | |||
1160 | ;----------------------------------------------------------------- |
||
1161 | ; |
||
1162 | ; SOCKET_ring_read |
||
1163 | ; |
||
1533 | hidnplayr | 1164 | ; reads the data, BUT DOES NOT CLEAR IT FROM MEMORY YET |
1529 | hidnplayr | 1165 | ; |
1166 | ; IN: eax = ptr to ring struct |
||
1167 | ; ecx = buffer size |
||
1168 | ; edi = ptr to buffer |
||
1169 | ; |
||
1533 | hidnplayr | 1170 | ; OUT: ecx = number of bytes read |
1529 | hidnplayr | 1171 | ; |
1172 | ;----------------------------------------------------------------- |
||
1173 | align 4 |
||
1174 | SOCKET_ring_read: |
||
1175 | |||
1533 | hidnplayr | 1176 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u\n", eax, edi, ecx |
1529 | hidnplayr | 1177 | |
1533 | hidnplayr | 1178 | cmp ecx, [eax + RING_BUFFER.size] |
1179 | jg .less_data |
||
1529 | hidnplayr | 1180 | |
1181 | .copy: |
||
1533 | hidnplayr | 1182 | mov esi, [eax + RING_BUFFER.read_ptr] |
1529 | hidnplayr | 1183 | |
1541 | hidnplayr | 1184 | DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
1529 | hidnplayr | 1185 | push ecx |
1533 | hidnplayr | 1186 | shr ecx, 1 |
1187 | jnc .nb |
||
1188 | movsb |
||
1536 | hidnplayr | 1189 | .nb: |
1533 | hidnplayr | 1190 | shr ecx, 1 |
1191 | jnc .nw |
||
1192 | movsw |
||
1536 | hidnplayr | 1193 | .nw: |
1533 | hidnplayr | 1194 | test ecx, ecx |
1195 | jz .nd |
||
1196 | rep movsd |
||
1536 | hidnplayr | 1197 | .nd: |
1529 | hidnplayr | 1198 | pop ecx |
1199 | |||
1533 | hidnplayr | 1200 | ; .no_data_at_all: |
1529 | hidnplayr | 1201 | ret |
1202 | |||
1533 | hidnplayr | 1203 | .less_data: |
1529 | hidnplayr | 1204 | mov ecx, [eax + RING_BUFFER.size] |
1533 | hidnplayr | 1205 | test ecx, ecx |
1206 | ; jz .no_data_at_all |
||
1529 | hidnplayr | 1207 | jmp .copy |
1208 | |||
1209 | |||
1210 | ;----------------------------------------------------------------- |
||
1211 | ; |
||
1212 | ; SOCKET_ring_free |
||
1213 | ; |
||
1214 | ; Free's some bytes from the ringbuffer |
||
1215 | ; |
||
1216 | ; IN: eax = ptr to ring struct |
||
1217 | ; ecx = data size |
||
1218 | ; |
||
1219 | ; OUT: ecx = number of bytes free-ed |
||
1220 | ; |
||
1221 | ;----------------------------------------------------------------- |
||
1222 | align 4 |
||
1223 | SOCKET_ring_free: |
||
1224 | |||
1536 | hidnplayr | 1225 | DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
1529 | hidnplayr | 1226 | |
1227 | sub [eax + RING_BUFFER.size], ecx |
||
1533 | hidnplayr | 1228 | jl .sumthinwong |
1529 | hidnplayr | 1229 | add [eax + RING_BUFFER.read_ptr], ecx |
1230 | |||
1231 | mov edx, [eax + RING_BUFFER.end_ptr] |
||
1232 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1233 | jl @f |
||
1533 | hidnplayr | 1234 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
1529 | hidnplayr | 1235 | @@: |
1236 | ret |
||
1237 | |||
1533 | hidnplayr | 1238 | .sumthinwong: ; we could free all available bytes, but that would be stupid, i guess.. |
1239 | add [eax + RING_BUFFER.size], ecx |
||
1529 | hidnplayr | 1240 | xor ecx, ecx |
1241 | ret |
||
1242 | |||
1243 | |||
1244 | ;----------------------------------------------------------------- |
||
1245 | ; |
||
1514 | hidnplayr | 1246 | ; SOCKET_notify_owner |
1247 | ; |
||
1248 | ; notify's the owner of a socket that something happened |
||
1249 | ; |
||
1250 | ; IN: eax = socket ptr |
||
1251 | ; OUT: / |
||
1252 | ; |
||
1253 | ;----------------------------------------------------------------- |
||
1254 | align 4 |
||
1255 | SOCKET_notify_owner: |
||
1256 | |||
1536 | hidnplayr | 1257 | DEBUGF 1,"SOCKET_notify_owner: %x\n", eax |
1514 | hidnplayr | 1258 | |
1259 | call SOCKET_check |
||
1260 | jz .error |
||
1261 | |||
1536 | hidnplayr | 1262 | push ecx esi |
1514 | hidnplayr | 1263 | |
1264 | ; socket exists, now try to flag an event to the application |
||
1265 | |||
1266 | mov eax, [eax + SOCKET.PID] |
||
1206 | hidnplayr | 1267 | mov ecx, 1 |
1268 | mov esi, TASK_DATA + TASKDATA.pid |
||
1269 | |||
1270 | .next_pid: |
||
1514 | hidnplayr | 1271 | cmp [esi], eax |
1206 | hidnplayr | 1272 | je .found_pid |
1273 | inc ecx |
||
1274 | add esi, 0x20 |
||
1275 | cmp ecx, [TASK_COUNT] |
||
1276 | jbe .next_pid |
||
1277 | |||
1514 | hidnplayr | 1278 | ; PID not found, TODO: close socket! |
1279 | |||
1280 | jmp .error2 |
||
1281 | |||
1206 | hidnplayr | 1282 | .found_pid: |
1283 | shl ecx, 8 |
||
1514 | hidnplayr | 1284 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
1206 | hidnplayr | 1285 | mov [check_idle_semaphore], 200 |
1286 | |||
1536 | hidnplayr | 1287 | DEBUGF 1,"SOCKET_notify_owner: succes!\n" |
1514 | hidnplayr | 1288 | |
1289 | .error2: |
||
1536 | hidnplayr | 1290 | pop esi ecx |
1291 | |||
1514 | hidnplayr | 1292 | .error: |
1293 | |||
1206 | hidnplayr | 1294 | ret |
1295 | |||
1296 | |||
1514 | hidnplayr | 1297 | ;-------------------------------------------------------------------- |
1298 | ; |
||
1299 | ; SOCKET_alloc |
||
1300 | ; |
||
1159 | hidnplayr | 1301 | ; Allocate memory for socket data and put new socket into the list |
1302 | ; Newly created socket is initialized with calling PID and number and |
||
1303 | ; put into beginning of list (which is a fastest way). |
||
1304 | ; |
||
1514 | hidnplayr | 1305 | ; IN: / |
1306 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1307 | ; edi = socket number |
||
1308 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1309 | ; |
1514 | hidnplayr | 1310 | ;-------------------------------------------------------------------- |
1311 | align 4 |
||
1312 | SOCKET_alloc: |
||
1313 | |||
1314 | push ecx ebx |
||
1315 | |||
1159 | hidnplayr | 1316 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1529 | hidnplayr | 1317 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
1159 | hidnplayr | 1318 | or eax, eax |
1319 | jz .exit |
||
1320 | |||
1514 | hidnplayr | 1321 | ; zero-initialize allocated memory |
1322 | push eax edi |
||
1159 | hidnplayr | 1323 | mov edi, eax |
1324 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1325 | xor eax, eax |
||
1326 | rep stosd |
||
1514 | hidnplayr | 1327 | pop edi eax |
1159 | hidnplayr | 1328 | |
1536 | hidnplayr | 1329 | ; set send-and receive procedures to return -1 |
1330 | mov [eax + SOCKET.snd_proc], s_error |
||
1331 | mov [eax + SOCKET.rcv_proc], s_error |
||
1332 | |||
1514 | hidnplayr | 1333 | ; find first free socket number and use it |
1159 | hidnplayr | 1334 | xor ecx, ecx |
1335 | .next_socket_number: |
||
1336 | inc ecx |
||
1536 | hidnplayr | 1337 | mov ebx, net_sockets |
1159 | hidnplayr | 1338 | .next_socket: |
1514 | hidnplayr | 1339 | mov ebx, [ebx + SOCKET.NextPtr] |
1529 | hidnplayr | 1340 | test ebx, ebx |
1514 | hidnplayr | 1341 | jz .last_socket |
1536 | hidnplayr | 1342 | |
1514 | hidnplayr | 1343 | cmp [ebx + SOCKET.Number], ecx |
1159 | hidnplayr | 1344 | jne .next_socket |
1345 | jmp .next_socket_number |
||
1346 | |||
1514 | hidnplayr | 1347 | .last_socket: |
1348 | mov [eax + SOCKET.Number], ecx |
||
1529 | hidnplayr | 1349 | DEBUGF 1, "SOCKET_alloc: number=%u\n", ecx |
1350 | mov edi, ecx |
||
1159 | hidnplayr | 1351 | |
1514 | hidnplayr | 1352 | ; Fill in PID |
1353 | mov ebx, [TASK_BASE] |
||
1354 | mov ebx, [ebx + TASKDATA.pid] |
||
1355 | mov [eax + SOCKET.PID], ebx |
||
1356 | |||
1529 | hidnplayr | 1357 | ; add socket to the list by re-arranging some pointers |
1514 | hidnplayr | 1358 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1359 | |||
1360 | mov [eax + SOCKET.PrevPtr], net_sockets |
||
1361 | mov [eax + SOCKET.NextPtr], ebx |
||
1362 | |||
1529 | hidnplayr | 1363 | test ebx, ebx |
1514 | hidnplayr | 1364 | jz @f |
1365 | add ebx, SOCKET.lock ; lock the next socket |
||
1366 | call wait_mutex |
||
1367 | sub ebx, SOCKET.lock |
||
1368 | mov [ebx + SOCKET.PrevPtr], eax |
||
1536 | hidnplayr | 1369 | mov [ebx + SOCKET.lock], 0 ; and unlock it again |
1514 | hidnplayr | 1370 | @@: |
1371 | |||
1372 | mov [net_sockets + SOCKET.NextPtr], eax |
||
1529 | hidnplayr | 1373 | or eax, eax ; used to clear zero flag |
1159 | hidnplayr | 1374 | .exit: |
1514 | hidnplayr | 1375 | pop ebx ecx |
1376 | |||
1159 | hidnplayr | 1377 | ret |
1378 | |||
1514 | hidnplayr | 1379 | |
1380 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1381 | ; |
1514 | hidnplayr | 1382 | ; SOCKET_free |
1159 | hidnplayr | 1383 | ; |
1514 | hidnplayr | 1384 | ; Free socket data memory and remove socket from the list |
1385 | ; |
||
1386 | ; IN: eax = socket ptr |
||
1387 | ; OUT: / |
||
1388 | ; |
||
1389 | ;---------------------------------------------------- |
||
1390 | align 4 |
||
1391 | SOCKET_free: |
||
1159 | hidnplayr | 1392 | |
1536 | hidnplayr | 1393 | DEBUGF 1, "SOCKET_free: %x\n", eax |
1514 | hidnplayr | 1394 | |
1395 | call SOCKET_check |
||
1159 | hidnplayr | 1396 | jz .error |
1397 | |||
1514 | hidnplayr | 1398 | push ebx |
1399 | lea ebx, [eax + SOCKET.lock] |
||
1400 | call wait_mutex |
||
1401 | |||
1541 | hidnplayr | 1402 | DEBUGF 1, "SOCKET_free: freeing socket..\n" |
1514 | hidnplayr | 1403 | |
1529 | hidnplayr | 1404 | cmp [eax + SOCKET.Domain], AF_INET4 |
1536 | hidnplayr | 1405 | jnz .no_tcp |
1529 | hidnplayr | 1406 | |
1407 | cmp [eax + SOCKET.Type], IP_PROTO_TCP |
||
1536 | hidnplayr | 1408 | jnz .no_tcp |
1529 | hidnplayr | 1409 | |
1536 | hidnplayr | 1410 | mov ebx, eax |
1411 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv + RING_BUFFER.start_ptr] |
||
1412 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd + RING_BUFFER.start_ptr] |
||
1413 | mov eax, ebx |
||
1414 | .no_tcp: |
||
1529 | hidnplayr | 1415 | |
1514 | hidnplayr | 1416 | push eax ; this will be passed to kernel_free |
1417 | mov ebx, [eax + SOCKET.NextPtr] |
||
1418 | mov eax, [eax + SOCKET.PrevPtr] |
||
1419 | |||
1541 | hidnplayr | 1420 | DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
1514 | hidnplayr | 1421 | |
1422 | test eax, eax |
||
1159 | hidnplayr | 1423 | jz @f |
1514 | hidnplayr | 1424 | mov [eax + SOCKET.NextPtr], ebx |
1425 | @@: |
||
1159 | hidnplayr | 1426 | |
1514 | hidnplayr | 1427 | test ebx, ebx |
1428 | jz @f |
||
1429 | mov [ebx + SOCKET.PrevPtr], eax |
||
1430 | @@: |
||
1249 | hidnplayr | 1431 | |
1514 | hidnplayr | 1432 | call kernel_free |
1433 | pop ebx |
||
1159 | hidnplayr | 1434 | |
1541 | hidnplayr | 1435 | DEBUGF 1, "SOCKET_free: success!\n" |
1514 | hidnplayr | 1436 | |
1159 | hidnplayr | 1437 | .error: |
1438 | ret |
||
1439 | |||
1514 | hidnplayr | 1440 | |
1533 | hidnplayr | 1441 | ; IN: socket nr in ebx |
1442 | ; OUT: socket nr in eax |
||
1443 | ; preserves edx |
||
1529 | hidnplayr | 1444 | |
1445 | align 4 |
||
1446 | SOCKET_fork: |
||
1447 | |||
1448 | ;; Exit if backlog queue is full |
||
1449 | ; mov ax, [ebx + TCP_SOCKET.backlog_cur] |
||
1450 | ; cmp ax, [ebx + TCP_SOCKET.backlog] |
||
1451 | ; jae .exit |
||
1452 | |||
1453 | ; Allocate new socket |
||
1454 | call SOCKET_alloc |
||
1455 | ;;; jz .fail |
||
1456 | |||
1457 | ; Copy structure from current socket to new, (including lock!) |
||
1458 | ; We start at PID to reserve the socket num, and the 2 pointers at beginning of socket |
||
1459 | lea esi, [edx + SOCKET.PID] |
||
1460 | lea edi, [eax + SOCKET.PID] |
||
1461 | mov ecx, (TCP_SOCKET.end - SOCKET.PID + 3)/4 |
||
1462 | rep movsd |
||
1463 | |||
1464 | ;; Push pointer to new socket to queue |
||
1465 | ; movzx ecx, [ebx + TCP_SOCKET.backlog_cur] |
||
1466 | ; inc [ebx + TCP_SOCKET.backlog_cur] |
||
1467 | ; mov [ebx + TCP_SOCKET.end + ecx*4], eax |
||
1468 | |||
1469 | ;;;; mov [eax + IP_SOCKET.RemoteIP], esi ; IP source address |
||
1470 | |||
1471 | ret |
||
1472 | |||
1473 | |||
1514 | hidnplayr | 1474 | ;--------------------------------------------------- |
1475 | ; |
||
1476 | ; SOCKET_num_to_ptr |
||
1477 | ; |
||
1159 | hidnplayr | 1478 | ; Get socket structure address by its number |
1479 | ; |
||
1514 | hidnplayr | 1480 | ; IN: ecx = socket number |
1533 | hidnplayr | 1481 | ; OUT: eax = 0 on error, socket ptr otherwise |
1514 | hidnplayr | 1482 | ; ZF = set on error |
1159 | hidnplayr | 1483 | ; |
1514 | hidnplayr | 1484 | ;--------------------------------------------------- |
1485 | align 4 |
||
1486 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1487 | |
1536 | hidnplayr | 1488 | DEBUGF 1,"SOCKET_num_to_ptr: %u ", ecx |
1514 | hidnplayr | 1489 | |
1490 | mov eax, net_sockets |
||
1491 | |||
1159 | hidnplayr | 1492 | .next_socket: |
1514 | hidnplayr | 1493 | mov eax, [eax + SOCKET.NextPtr] |
1494 | or eax, eax |
||
1159 | hidnplayr | 1495 | jz .error |
1514 | hidnplayr | 1496 | cmp [eax + SOCKET.Number], ecx |
1159 | hidnplayr | 1497 | jne .next_socket |
1498 | |||
1514 | hidnplayr | 1499 | test eax, eax |
1159 | hidnplayr | 1500 | |
1514 | hidnplayr | 1501 | DEBUGF 1,"(%x)\n", eax |
1159 | hidnplayr | 1502 | .error: |
1503 | ret |
||
1504 | |||
1514 | hidnplayr | 1505 | |
1506 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1507 | ; |
1514 | hidnplayr | 1508 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1509 | ; |
1514 | hidnplayr | 1510 | ; Get socket number by its address |
1511 | ; |
||
1512 | ; IN: eax = socket ptr |
||
1513 | ; OUT: eax = 0 on error, socket num otherwise |
||
1514 | ; ZF = set on error |
||
1515 | ; |
||
1516 | ;--------------------------------------------------- |
||
1517 | align 4 |
||
1518 | SOCKET_ptr_to_num: |
||
1519 | |||
1536 | hidnplayr | 1520 | DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax |
1514 | hidnplayr | 1521 | |
1522 | call SOCKET_check |
||
1159 | hidnplayr | 1523 | jz .error |
1524 | |||
1514 | hidnplayr | 1525 | mov eax, [eax + SOCKET.Number] |
1526 | |||
1527 | DEBUGF 1,"(%u)\n", eax |
||
1528 | |||
1529 | .error: |
||
1530 | ret |
||
1531 | |||
1532 | |||
1533 | ;--------------------------------------------------- |
||
1534 | ; |
||
1535 | ; SOCKET_check |
||
1536 | ; |
||
1537 | ; checks if the given value is really a socket ptr |
||
1538 | ; |
||
1539 | ; IN: eax = socket ptr |
||
1540 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1541 | ; ZF = set on error |
||
1542 | ; |
||
1543 | ;--------------------------------------------------- |
||
1544 | align 4 |
||
1545 | SOCKET_check: |
||
1546 | |||
1536 | hidnplayr | 1547 | DEBUGF 1,"SOCKET_check: %x\n", eax |
1514 | hidnplayr | 1548 | |
1549 | push ebx |
||
1159 | hidnplayr | 1550 | mov ebx, net_sockets |
1514 | hidnplayr | 1551 | |
1159 | hidnplayr | 1552 | .next_socket: |
1514 | hidnplayr | 1553 | mov ebx, [ebx + SOCKET.NextPtr] |
1159 | hidnplayr | 1554 | or ebx, ebx |
1514 | hidnplayr | 1555 | jz .done |
1159 | hidnplayr | 1556 | cmp ebx, eax |
1514 | hidnplayr | 1557 | jnz .next_socket |
1159 | hidnplayr | 1558 | |
1514 | hidnplayr | 1559 | .done: |
1560 | mov eax, ebx |
||
1561 | test eax, eax |
||
1562 | pop ebx |
||
1563 | |||
1159 | hidnplayr | 1564 | ret |
1565 | |||
1514 | hidnplayr | 1566 | |
1567 | |||
1568 | ;--------------------------------------------------- |
||
1569 | ; |
||
1570 | ; SOCKET_check_owner |
||
1571 | ; |
||
1572 | ; checks if the caller application owns the socket |
||
1573 | ; |
||
1574 | ; IN: eax = socket ptr |
||
1575 | ; OUT: ZF = true/false |
||
1576 | ; |
||
1577 | ;--------------------------------------------------- |
||
1578 | align 4 |
||
1579 | SOCKET_check_owner: |
||
1580 | |||
1536 | hidnplayr | 1581 | DEBUGF 1,"SOCKET_check_owner: %x\n", eax |
1514 | hidnplayr | 1582 | |
1583 | push ebx |
||
1584 | mov ebx, [TASK_BASE] |
||
1585 | mov ebx, [ecx + TASKDATA.pid] |
||
1586 | cmp [eax + SOCKET.PID], ebx |
||
1587 | pop ebx |
||
1588 | |||
1159 | hidnplayr | 1589 | ret |
1514 | hidnplayr | 1590 | |
1591 | |||
1592 | |||
1593 | |||
1594 | ;--------------------------------------------------- |
||
1595 | ; |
||
1596 | ; SOCKET_process_end |
||
1597 | ; |
||
1598 | ; Kernel calls this function when a certain process ends |
||
1599 | ; This function will check if the process had any open sockets |
||
1600 | ; And update them accordingly |
||
1601 | ; |
||
1602 | ; IN: eax = pid |
||
1603 | ; OUT: / |
||
1604 | ; |
||
1605 | ;------------------------------------------------------ |
||
1606 | align 4 |
||
1607 | SOCKET_process_end: |
||
1608 | |||
1536 | hidnplayr | 1609 | DEBUGF 1,"SOCKET_process_end: %x\n", eax |
1514 | hidnplayr | 1610 | |
1611 | push ebx |
||
1612 | mov ebx, net_sockets |
||
1613 | |||
1614 | .next_socket: |
||
1615 | |||
1616 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1617 | .test_socket: |
||
1618 | test ebx, ebx |
||
1619 | jz .done |
||
1620 | |||
1621 | cmp [ebx + SOCKET.PID], eax |
||
1622 | jne .next_socket |
||
1623 | |||
1624 | DEBUGF 1,"closing socket %x", eax, ebx |
||
1625 | |||
1626 | mov [ebx + SOCKET.PID], 0 |
||
1627 | |||
1628 | cmp [ebx + SOCKET.Type], IP_PROTO_UDP |
||
1629 | je .udp |
||
1630 | |||
1631 | cmp [ebx + SOCKET.Type], IP_PROTO_TCP |
||
1632 | je .tcp |
||
1633 | |||
1634 | jmp .next_socket ; kill all sockets for given PID |
||
1635 | |||
1636 | .udp: |
||
1637 | mov eax, ebx |
||
1638 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1639 | call SOCKET_free |
||
1640 | jmp .test_socket |
||
1641 | |||
1642 | .tcp: |
||
1643 | |||
1644 | jmp .next_socket |
||
1645 | |||
1646 | .done: |
||
1647 | pop ebx |
||
1648 | |||
1649 | ret |