Rev 2623 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
2362 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
1529 | hidnplayr | 6 | ;; Written by hidnplayr@kolibrios.org, ;; |
7 | ;; and Clevermouse. ;; |
||
1159 | hidnplayr | 8 | ;; ;; |
1529 | hidnplayr | 9 | ;; Based on code by mike.dld ;; |
1159 | hidnplayr | 10 | ;; ;; |
1529 | hidnplayr | 11 | ;; GNU GENERAL PUBLIC LICENSE ;; |
12 | ;; Version 2, June 1991 ;; |
||
13 | ;; ;; |
||
1159 | hidnplayr | 14 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
15 | |||
1206 | hidnplayr | 16 | $Revision: 2629 $ |
1159 | hidnplayr | 17 | |
1773 | hidnplayr | 18 | |
2402 | hidnplayr | 19 | struct SOCKET |
1249 | hidnplayr | 20 | |
2402 | hidnplayr | 21 | NextPtr dd ? ; pointer to next socket in list |
22 | PrevPtr dd ? ; pointer to previous socket in list |
||
23 | Number dd ? ; socket number |
||
1249 | hidnplayr | 24 | |
2402 | hidnplayr | 25 | mutex MUTEX |
1249 | hidnplayr | 26 | |
2402 | hidnplayr | 27 | PID dd ? ; application process id |
28 | Domain dd ? ; INET/UNIX/.. |
||
29 | Type dd ? ; RAW/STREAM/DGRAP |
||
30 | Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP |
||
31 | errorcode dd ? |
||
1249 | hidnplayr | 32 | |
2402 | hidnplayr | 33 | options dd ? |
34 | state dd ? |
||
35 | backlog dw ? ; how many incomming connections that can be queued |
||
1249 | hidnplayr | 36 | |
2402 | hidnplayr | 37 | snd_proc dd ? |
38 | rcv_proc dd ? |
||
1536 | hidnplayr | 39 | |
2305 | hidnplayr | 40 | ends |
1249 | hidnplayr | 41 | |
2402 | hidnplayr | 42 | struct IP_SOCKET SOCKET |
1254 | hidnplayr | 43 | |
2402 | hidnplayr | 44 | LocalIP rd 4 |
45 | RemoteIP rd 4 |
||
1318 | hidnplayr | 46 | |
2305 | hidnplayr | 47 | ends |
1159 | hidnplayr | 48 | |
2402 | hidnplayr | 49 | struct TCP_SOCKET IP_SOCKET |
1249 | hidnplayr | 50 | |
2402 | hidnplayr | 51 | LocalPort dw ? |
52 | RemotePort dw ? |
||
1514 | hidnplayr | 53 | |
2402 | hidnplayr | 54 | t_state dd ? ; TCB state |
55 | t_rxtshift dd ? |
||
56 | t_rxtcur dd ? |
||
57 | t_dupacks dd ? |
||
58 | t_maxseg dd ? |
||
59 | t_force dd ? |
||
60 | t_flags dd ? |
||
1514 | hidnplayr | 61 | |
62 | ;--------------- |
||
63 | ; RFC783 page 21 |
||
64 | |||
65 | ; send sequence |
||
2402 | hidnplayr | 66 | SND_UNA dd ? ; sequence number of unack'ed sent Packets |
67 | SND_NXT dd ? ; next send sequence number to use |
||
68 | SND_UP dd ? |
||
69 | SND_WL1 dd ? ; window minus one |
||
70 | SND_WL2 dd ? ; |
||
71 | ISS dd ? ; initial send sequence number |
||
72 | SND_WND dd ? ; send window |
||
1514 | hidnplayr | 73 | |
74 | ; receive sequence |
||
2402 | hidnplayr | 75 | RCV_WND dw ? ; receive window |
76 | RCV_NXT dd ? ; next receive sequence number to use |
||
77 | RCV_UP dd ? |
||
78 | IRS dd ? ; initial receive sequence number |
||
1514 | hidnplayr | 79 | |
80 | ;--------------------- |
||
81 | ; Additional variables |
||
82 | |||
83 | ; receive variables |
||
2402 | hidnplayr | 84 | RCV_ADV dd ? |
1514 | hidnplayr | 85 | |
86 | ; retransmit variables |
||
2402 | hidnplayr | 87 | SND_MAX dd ? |
1514 | hidnplayr | 88 | |
89 | ; congestion control |
||
2402 | hidnplayr | 90 | SND_CWND dd ? |
91 | SND_SSTHRESH dd ? |
||
1514 | hidnplayr | 92 | |
93 | ;---------------------- |
||
94 | ; Transmit timing stuff |
||
2402 | hidnplayr | 95 | t_idle dd ? |
96 | t_rtt dd ? |
||
97 | t_rtseq dd ? |
||
98 | t_srtt dd ? |
||
99 | t_rttvar dd ? |
||
100 | t_rttmin dd ? |
||
101 | max_sndwnd dd ? |
||
1514 | hidnplayr | 102 | |
103 | ;----------------- |
||
104 | ; Out-of-band data |
||
2402 | hidnplayr | 105 | t_oobflags dd ? |
106 | t_iobc dd ? |
||
107 | t_softerror dd ? |
||
1514 | hidnplayr | 108 | |
109 | |||
110 | ;--------- |
||
2310 | hidnplayr | 111 | ; RFC 1323 ; the order of next 4 elements may not change |
1514 | hidnplayr | 112 | |
2402 | hidnplayr | 113 | SND_SCALE db ? |
114 | RCV_SCALE db ? |
||
115 | requested_s_scale db ? |
||
116 | request_r_scale db ? |
||
1514 | hidnplayr | 117 | |
2402 | hidnplayr | 118 | ts_recent dd ? |
119 | ts_recent_age dd ? |
||
120 | last_ack_sent dd ? |
||
1519 | hidnplayr | 121 | |
2310 | hidnplayr | 122 | |
1519 | hidnplayr | 123 | ;------- |
124 | ; Timers |
||
2402 | hidnplayr | 125 | timer_retransmission dw ? ; rexmt |
126 | timer_persist dw ? |
||
127 | timer_keepalive dw ? ; keepalive/syn timeout |
||
128 | timer_timed_wait dw ? ; also used as 2msl timer |
||
1519 | hidnplayr | 129 | |
2305 | hidnplayr | 130 | ends |
1249 | hidnplayr | 131 | |
2402 | hidnplayr | 132 | struct UDP_SOCKET IP_SOCKET |
1249 | hidnplayr | 133 | |
2402 | hidnplayr | 134 | LocalPort dw ? |
135 | RemotePort dw ? |
||
136 | firstpacket db ? |
||
1249 | hidnplayr | 137 | |
2305 | hidnplayr | 138 | ends |
1249 | hidnplayr | 139 | |
140 | |||
2402 | hidnplayr | 141 | struct ICMP_SOCKET IP_SOCKET |
1249 | hidnplayr | 142 | |
2402 | hidnplayr | 143 | Identifier dw ? |
1514 | hidnplayr | 144 | |
2305 | hidnplayr | 145 | ends |
1514 | hidnplayr | 146 | |
147 | |||
2402 | hidnplayr | 148 | struct RING_BUFFER |
2311 | hidnplayr | 149 | |
2402 | hidnplayr | 150 | start_ptr dd ? ; Pointer to start of buffer |
151 | end_ptr dd ? ; pointer to end of buffer |
||
152 | read_ptr dd ? ; Read pointer |
||
153 | write_ptr dd ? ; Write pointer |
||
154 | size dd ? ; Number of bytes buffered |
||
2311 | hidnplayr | 155 | |
2305 | hidnplayr | 156 | ends |
1514 | hidnplayr | 157 | |
2402 | hidnplayr | 158 | struct STREAM_SOCKET TCP_SOCKET |
1529 | hidnplayr | 159 | |
2402 | hidnplayr | 160 | rcv RING_BUFFER |
161 | snd RING_BUFFER |
||
1529 | hidnplayr | 162 | |
2305 | hidnplayr | 163 | ends |
1529 | hidnplayr | 164 | |
2402 | hidnplayr | 165 | struct socket_queue_entry |
1529 | hidnplayr | 166 | |
2402 | hidnplayr | 167 | data_ptr dd ? |
168 | buf_ptr dd ? |
||
169 | data_size dd ? |
||
1529 | hidnplayr | 170 | |
1274 | hidnplayr | 171 | ends |
172 | |||
1514 | hidnplayr | 173 | |
2614 | hidnplayr | 174 | SOCKETBUFFSIZE = 4096 ; in bytes |
1514 | hidnplayr | 175 | |
2614 | hidnplayr | 176 | SOCKET_QUEUE_SIZE = 10 ; maximum number ofincoming packets queued for 1 socket |
1514 | hidnplayr | 177 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
2614 | hidnplayr | 178 | SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
1249 | hidnplayr | 179 | |
1159 | hidnplayr | 180 | uglobal |
2402 | hidnplayr | 181 | net_sockets rd 4 |
182 | last_socket_num dd ? |
||
183 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
||
184 | last_TCP_port dw ? ; |
||
1159 | hidnplayr | 185 | endg |
186 | |||
187 | |||
1257 | hidnplayr | 188 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 189 | ; |
190 | ; SOCKET_init |
||
191 | ; |
||
1257 | hidnplayr | 192 | ;----------------------------------------------------------------- |
2402 | hidnplayr | 193 | macro SOCKET_init { |
1159 | hidnplayr | 194 | |
2402 | hidnplayr | 195 | xor eax, eax |
196 | mov edi, net_sockets |
||
197 | mov ecx, 5 |
||
198 | rep stosd |
||
1159 | hidnplayr | 199 | |
1529 | hidnplayr | 200 | @@: |
2402 | hidnplayr | 201 | pseudo_random eax |
202 | cmp ax, MIN_EPHEMERAL_PORT |
||
203 | jb @r |
||
204 | cmp ax, MAX_EPHEMERAL_PORT |
||
205 | ja @r |
||
206 | mov [last_UDP_port], ax |
||
1529 | hidnplayr | 207 | |
208 | @@: |
||
2402 | hidnplayr | 209 | pseudo_random eax |
210 | cmp ax, MIN_EPHEMERAL_PORT |
||
211 | jb @r |
||
212 | cmp ax, MAX_EPHEMERAL_PORT |
||
213 | ja @r |
||
214 | mov [last_TCP_port], ax |
||
1529 | hidnplayr | 215 | |
216 | } |
||
217 | |||
218 | |||
1257 | hidnplayr | 219 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 220 | ; |
221 | ; Socket API (function 74) |
||
222 | ; |
||
1257 | hidnplayr | 223 | ;----------------------------------------------------------------- |
2614 | hidnplayr | 224 | align 4 |
225 | sys_socket: |
||
226 | |||
227 | cmp ebx, 255 |
||
228 | jz SOCKET_debug |
||
229 | |||
230 | cmp ebx, .number |
||
231 | ja s_error |
||
232 | jmp dword [.table + 4*ebx] |
||
233 | |||
234 | .table: |
||
2402 | hidnplayr | 235 | dd SOCKET_open ; 0 |
236 | dd SOCKET_close ; 1 |
||
237 | dd SOCKET_bind ; 2 |
||
238 | dd SOCKET_listen ; 3 |
||
239 | dd SOCKET_connect ; 4 |
||
240 | dd SOCKET_accept ; 5 |
||
241 | dd SOCKET_send ; 6 |
||
242 | dd SOCKET_receive ; 7 |
||
243 | dd SOCKET_set_opt ; 8 |
||
244 | dd SOCKET_get_opt ; 9 |
||
2614 | hidnplayr | 245 | .number = ($ - .table) / 4 - 1 |
2301 | hidnplayr | 246 | |
1529 | hidnplayr | 247 | s_error: |
2402 | hidnplayr | 248 | DEBUGF 1,"socket error\n" |
249 | mov dword [esp+32], -1 |
||
1529 | hidnplayr | 250 | |
2402 | hidnplayr | 251 | ret |
1529 | hidnplayr | 252 | |
1159 | hidnplayr | 253 | |
2301 | hidnplayr | 254 | |
1257 | hidnplayr | 255 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 256 | ; |
257 | ; SOCKET_open |
||
258 | ; |
||
259 | ; IN: domain in ecx |
||
260 | ; type in edx |
||
1196 | hidnplayr | 261 | ; protocol in esi |
1159 | hidnplayr | 262 | ; OUT: eax is socket num, -1 on error |
263 | ; |
||
1257 | hidnplayr | 264 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 265 | align 4 |
1514 | hidnplayr | 266 | SOCKET_open: |
1159 | hidnplayr | 267 | |
2402 | hidnplayr | 268 | DEBUGF 1,"SOCKET_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi |
1159 | hidnplayr | 269 | |
2402 | hidnplayr | 270 | push ecx edx esi |
271 | call SOCKET_alloc |
||
272 | pop esi edx ecx |
||
273 | jz s_error |
||
1159 | hidnplayr | 274 | |
2402 | hidnplayr | 275 | mov [esp+32], edi ; return socketnumber |
1542 | hidnplayr | 276 | |
2402 | hidnplayr | 277 | mov [eax + SOCKET.Domain], ecx |
278 | mov [eax + SOCKET.Type], edx |
||
279 | mov [eax + SOCKET.Protocol], esi |
||
1159 | hidnplayr | 280 | |
2402 | hidnplayr | 281 | cmp ecx, AF_INET4 |
282 | jne .no_inet4 |
||
1529 | hidnplayr | 283 | |
2402 | hidnplayr | 284 | cmp edx, SOCK_DGRAM |
285 | je .udp |
||
1536 | hidnplayr | 286 | |
2402 | hidnplayr | 287 | cmp edx, SOCK_STREAM |
288 | je .tcp |
||
1529 | hidnplayr | 289 | |
2402 | hidnplayr | 290 | cmp edx, SOCK_RAW |
291 | je .raw |
||
1541 | hidnplayr | 292 | |
1536 | hidnplayr | 293 | .no_inet4: |
2402 | hidnplayr | 294 | ret |
1536 | hidnplayr | 295 | |
1542 | hidnplayr | 296 | align 4 |
297 | .raw: |
||
2402 | hidnplayr | 298 | test esi, esi ; IP_PROTO_IP |
299 | jz .ip |
||
1529 | hidnplayr | 300 | |
2402 | hidnplayr | 301 | cmp esi, IP_PROTO_ICMP |
302 | je .icmp |
||
1529 | hidnplayr | 303 | |
2402 | hidnplayr | 304 | cmp esi, IP_PROTO_UDP |
305 | je .udp |
||
1533 | hidnplayr | 306 | |
2402 | hidnplayr | 307 | cmp esi, IP_PROTO_TCP |
308 | je .tcp |
||
1536 | hidnplayr | 309 | |
2402 | hidnplayr | 310 | ret |
1159 | hidnplayr | 311 | |
1542 | hidnplayr | 312 | align 4 |
1536 | hidnplayr | 313 | .udp: |
2402 | hidnplayr | 314 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
315 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
||
316 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
317 | ret |
||
1529 | hidnplayr | 318 | |
1542 | hidnplayr | 319 | align 4 |
320 | .tcp: |
||
2402 | hidnplayr | 321 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
322 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
||
323 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_tcp |
||
1838 | hidnplayr | 324 | |
2612 | hidnplayr | 325 | TCP_init_socket eax |
2402 | hidnplayr | 326 | ret |
1529 | hidnplayr | 327 | |
328 | |||
1543 | hidnplayr | 329 | align 4 |
330 | .ip: |
||
2402 | hidnplayr | 331 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
332 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
333 | ret |
||
1541 | hidnplayr | 334 | |
1542 | hidnplayr | 335 | |
336 | align 4 |
||
1541 | hidnplayr | 337 | .icmp: |
2402 | hidnplayr | 338 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
339 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
340 | ret |
||
1541 | hidnplayr | 341 | |
342 | |||
343 | |||
1257 | hidnplayr | 344 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 345 | ; |
346 | ; SOCKET_bind |
||
347 | ; |
||
348 | ; IN: socket number in ecx |
||
349 | ; pointer to sockaddr struct in edx |
||
350 | ; length of that struct in esi |
||
351 | ; OUT: 0 on success |
||
352 | ; |
||
1257 | hidnplayr | 353 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 354 | align 4 |
1514 | hidnplayr | 355 | SOCKET_bind: |
1159 | hidnplayr | 356 | |
2402 | hidnplayr | 357 | DEBUGF 1,"socket_bind: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 358 | |
2402 | hidnplayr | 359 | call SOCKET_num_to_ptr |
360 | jz s_error |
||
1159 | hidnplayr | 361 | |
2402 | hidnplayr | 362 | cmp esi, 2 |
363 | jb s_error |
||
1159 | hidnplayr | 364 | |
2402 | hidnplayr | 365 | cmp word [edx], AF_INET4 |
366 | je .af_inet4 |
||
1159 | hidnplayr | 367 | |
2402 | hidnplayr | 368 | cmp word [edx], AF_UNIX |
369 | je .af_unix |
||
1249 | hidnplayr | 370 | |
2402 | hidnplayr | 371 | jmp s_error |
1249 | hidnplayr | 372 | |
373 | .af_unix: |
||
2402 | hidnplayr | 374 | ; TODO: write code here |
1249 | hidnplayr | 375 | |
2402 | hidnplayr | 376 | mov dword [esp+32], 0 |
377 | ret |
||
1249 | hidnplayr | 378 | |
1159 | hidnplayr | 379 | .af_inet4: |
380 | |||
2402 | hidnplayr | 381 | DEBUGF 1,"af_inet4\n" |
1514 | hidnplayr | 382 | |
2402 | hidnplayr | 383 | cmp esi, 6 |
384 | jb s_error |
||
1159 | hidnplayr | 385 | |
2622 | hidnplayr | 386 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
387 | je .udp |
||
1159 | hidnplayr | 388 | |
2622 | hidnplayr | 389 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
390 | je .tcp |
||
1159 | hidnplayr | 391 | |
2622 | hidnplayr | 392 | jmp s_error |
393 | |||
394 | .tcp: |
||
395 | .udp: |
||
396 | |||
397 | mov ebx, [edx + 4] ; First, fill in the IP |
||
398 | test ebx, ebx ; If IP is 0, use default |
||
399 | jnz @f |
||
400 | mov ebx, [NET_DEFAULT] |
||
401 | mov ebx, [IP_LIST + 4*ebx] |
||
402 | @@: |
||
403 | mov [eax + IP_SOCKET.LocalIP], ebx |
||
404 | |||
405 | mov bx, [edx + 2] ; Now fill in the port if it's still available |
||
406 | call SOCKET_check_port |
||
407 | jz s_error ; ZF is set by socket_check_port, on error |
||
408 | |||
2402 | hidnplayr | 409 | DEBUGF 1,"local ip: %u.%u.%u.%u\n",\ |
410 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
||
411 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 412 | |
2402 | hidnplayr | 413 | mov dword [esp+32], 0 |
414 | ret |
||
1159 | hidnplayr | 415 | |
416 | |||
417 | |||
418 | |||
1257 | hidnplayr | 419 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 420 | ; |
421 | ; SOCKET_connect |
||
422 | ; |
||
423 | ; IN: socket number in ecx |
||
424 | ; pointer to sockaddr struct in edx |
||
425 | ; length of that struct in esi |
||
426 | ; OUT: 0 on success |
||
427 | ; |
||
1257 | hidnplayr | 428 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 429 | align 4 |
1514 | hidnplayr | 430 | SOCKET_connect: |
1159 | hidnplayr | 431 | |
2402 | hidnplayr | 432 | DEBUGF 1,"SOCKET_connect: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 433 | |
2402 | hidnplayr | 434 | call SOCKET_num_to_ptr |
435 | jz s_error |
||
1159 | hidnplayr | 436 | |
2402 | hidnplayr | 437 | cmp esi, 8 |
438 | jb s_error |
||
1159 | hidnplayr | 439 | |
2402 | hidnplayr | 440 | cmp word [edx], AF_INET4 |
441 | je .af_inet4 |
||
1159 | hidnplayr | 442 | |
2402 | hidnplayr | 443 | jmp s_error |
1159 | hidnplayr | 444 | |
445 | .af_inet4: |
||
2402 | hidnplayr | 446 | cmp [eax + IP_SOCKET.LocalIP], 0 |
447 | jne @f |
||
448 | push [IP_LIST] |
||
449 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 450 | @@: |
1159 | hidnplayr | 451 | |
2402 | hidnplayr | 452 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
453 | je .udp |
||
1159 | hidnplayr | 454 | |
2402 | hidnplayr | 455 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
456 | je .tcp |
||
1159 | hidnplayr | 457 | |
2402 | hidnplayr | 458 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
459 | je .ip |
||
1541 | hidnplayr | 460 | |
2402 | hidnplayr | 461 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
462 | je .ip |
||
1542 | hidnplayr | 463 | |
2402 | hidnplayr | 464 | jmp s_error |
1159 | hidnplayr | 465 | |
1542 | hidnplayr | 466 | align 4 |
1254 | hidnplayr | 467 | .udp: |
2402 | hidnplayr | 468 | pusha |
469 | lea ecx, [eax + SOCKET.mutex] |
||
470 | call mutex_lock |
||
471 | popa |
||
1543 | hidnplayr | 472 | |
2402 | hidnplayr | 473 | pushw [edx + 2] |
474 | pop [eax + UDP_SOCKET.RemotePort] |
||
1543 | hidnplayr | 475 | |
2402 | hidnplayr | 476 | pushd [edx + 4] |
477 | pop [eax + IP_SOCKET.RemoteIP] |
||
1543 | hidnplayr | 478 | |
2402 | hidnplayr | 479 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
480 | jne @f |
||
481 | call SOCKET_find_port |
||
1543 | hidnplayr | 482 | @@: |
483 | |||
2402 | hidnplayr | 484 | mov [eax + UDP_SOCKET.firstpacket], 0 |
1159 | hidnplayr | 485 | |
2402 | hidnplayr | 486 | push eax |
487 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
488 | pop eax |
||
1159 | hidnplayr | 489 | |
2402 | hidnplayr | 490 | lea ecx, [eax + SOCKET.mutex] |
491 | call mutex_unlock |
||
1159 | hidnplayr | 492 | |
2402 | hidnplayr | 493 | mov dword [esp+32], 0 |
494 | ret |
||
495 | |||
1542 | hidnplayr | 496 | align 4 |
1254 | hidnplayr | 497 | .tcp: |
2402 | hidnplayr | 498 | pusha |
499 | lea ecx, [eax + SOCKET.mutex] |
||
500 | call mutex_lock |
||
501 | popa |
||
1159 | hidnplayr | 502 | |
2402 | hidnplayr | 503 | pushw [edx + 2] |
504 | pop [eax + TCP_SOCKET.RemotePort] |
||
1159 | hidnplayr | 505 | |
2402 | hidnplayr | 506 | pushd [edx + 4] |
507 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 508 | |
2402 | hidnplayr | 509 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
510 | jne @f |
||
511 | call SOCKET_find_port |
||
1543 | hidnplayr | 512 | @@: |
1159 | hidnplayr | 513 | |
2402 | hidnplayr | 514 | mov [eax + TCP_SOCKET.timer_persist], 0 |
515 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
||
2612 | hidnplayr | 516 | |
2402 | hidnplayr | 517 | push [TCP_sequence_num] |
518 | add [TCP_sequence_num], 6400 |
||
519 | pop [eax + TCP_SOCKET.ISS] |
||
520 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
||
1519 | hidnplayr | 521 | |
2612 | hidnplayr | 522 | |
2402 | hidnplayr | 523 | TCP_sendseqinit eax |
1529 | hidnplayr | 524 | |
1543 | hidnplayr | 525 | ; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
1533 | hidnplayr | 526 | |
2402 | hidnplayr | 527 | mov ebx, eax |
1159 | hidnplayr | 528 | |
2402 | hidnplayr | 529 | lea eax, [ebx + STREAM_SOCKET.snd] |
530 | call SOCKET_ring_create |
||
1543 | hidnplayr | 531 | |
2402 | hidnplayr | 532 | lea eax, [ebx + STREAM_SOCKET.rcv] |
533 | call SOCKET_ring_create |
||
1543 | hidnplayr | 534 | |
2402 | hidnplayr | 535 | pusha |
2403 | hidnplayr | 536 | lea ecx, [eax + SOCKET.mutex] |
2402 | hidnplayr | 537 | call mutex_unlock |
538 | popa |
||
1733 | hidnplayr | 539 | |
2402 | hidnplayr | 540 | mov eax, ebx |
541 | call TCP_output |
||
1733 | hidnplayr | 542 | |
2402 | hidnplayr | 543 | mov dword [esp+32], 0 |
544 | ret |
||
1159 | hidnplayr | 545 | |
1542 | hidnplayr | 546 | align 4 |
547 | .ip: |
||
2402 | hidnplayr | 548 | pusha |
549 | lea ecx, [eax + SOCKET.mutex] |
||
550 | call mutex_lock |
||
551 | popa |
||
1543 | hidnplayr | 552 | |
2402 | hidnplayr | 553 | pushd [edx + 4] |
554 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 555 | |
2402 | hidnplayr | 556 | push eax |
557 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
558 | pop eax |
||
1543 | hidnplayr | 559 | |
2402 | hidnplayr | 560 | lea ecx, [eax + SOCKET.mutex] |
561 | call mutex_unlock |
||
1541 | hidnplayr | 562 | |
2402 | hidnplayr | 563 | mov dword [esp+32], 0 |
564 | ret |
||
1541 | hidnplayr | 565 | |
2402 | hidnplayr | 566 | |
1257 | hidnplayr | 567 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 568 | ; |
569 | ; SOCKET_listen |
||
570 | ; |
||
571 | ; IN: socket number in ecx |
||
572 | ; backlog in edx |
||
573 | ; OUT: eax is socket num, -1 on error |
||
574 | ; |
||
1257 | hidnplayr | 575 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 576 | align 4 |
1514 | hidnplayr | 577 | SOCKET_listen: |
1159 | hidnplayr | 578 | |
2402 | hidnplayr | 579 | DEBUGF 1,"SOCKET_listen: socknum: %u backlog: %u\n", ecx, edx |
1159 | hidnplayr | 580 | |
2402 | hidnplayr | 581 | call SOCKET_num_to_ptr |
582 | jz s_error |
||
1159 | hidnplayr | 583 | |
2402 | hidnplayr | 584 | cmp [eax + SOCKET.Domain], AF_INET4 |
585 | jne s_error |
||
1254 | hidnplayr | 586 | |
2402 | hidnplayr | 587 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
588 | jne s_error |
||
1254 | hidnplayr | 589 | |
2402 | hidnplayr | 590 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
591 | je s_error |
||
1514 | hidnplayr | 592 | |
2402 | hidnplayr | 593 | cmp [eax + IP_SOCKET.LocalIP], 0 |
594 | jne @f |
||
595 | push [IP_LIST] |
||
596 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 597 | @@: |
598 | |||
2402 | hidnplayr | 599 | cmp edx, MAX_backlog |
600 | jbe @f |
||
601 | mov edx, MAX_backlog |
||
1543 | hidnplayr | 602 | @@: |
1159 | hidnplayr | 603 | |
2402 | hidnplayr | 604 | mov [eax + SOCKET.backlog], dx |
605 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
606 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
1159 | hidnplayr | 607 | |
2402 | hidnplayr | 608 | push eax |
609 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
610 | pop eax |
||
1543 | hidnplayr | 611 | |
2402 | hidnplayr | 612 | mov dword [esp+32], 0 |
1514 | hidnplayr | 613 | |
2402 | hidnplayr | 614 | ret |
1159 | hidnplayr | 615 | |
616 | |||
1257 | hidnplayr | 617 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 618 | ; |
619 | ; SOCKET_accept |
||
620 | ; |
||
621 | ; IN: socket number in ecx |
||
622 | ; addr in edx |
||
623 | ; addrlen in esi |
||
624 | ; OUT: eax is socket num, -1 on error |
||
625 | ; |
||
1257 | hidnplayr | 626 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 627 | align 4 |
1514 | hidnplayr | 628 | SOCKET_accept: |
1159 | hidnplayr | 629 | |
2402 | hidnplayr | 630 | DEBUGF 1,"SOCKET_accept: socknum: %u sockaddr: %x, length: %u\n", ecx, edx, esi |
1159 | hidnplayr | 631 | |
2402 | hidnplayr | 632 | call SOCKET_num_to_ptr |
633 | jz s_error |
||
1159 | hidnplayr | 634 | |
2402 | hidnplayr | 635 | test [eax + SOCKET.options], SO_ACCEPTCON |
636 | jz s_error |
||
1543 | hidnplayr | 637 | |
2402 | hidnplayr | 638 | cmp [eax + SOCKET.Domain], AF_INET4 |
639 | jne s_error |
||
1249 | hidnplayr | 640 | |
2402 | hidnplayr | 641 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
642 | jne s_error |
||
1249 | hidnplayr | 643 | |
2402 | hidnplayr | 644 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, s_error |
2572 | hidnplayr | 645 | mov eax, [esi] |
1249 | hidnplayr | 646 | |
2572 | hidnplayr | 647 | ; Change PID to that of the current process |
648 | mov ebx, [TASK_BASE] |
||
649 | mov ebx, [ebx + TASKDATA.pid] |
||
650 | mov [eax + SOCKET.PID], ebx |
||
651 | |||
2402 | hidnplayr | 652 | call SOCKET_ptr_to_num |
653 | jz s_error |
||
654 | mov [esp+32], eax |
||
655 | ret |
||
1514 | hidnplayr | 656 | |
1159 | hidnplayr | 657 | |
1257 | hidnplayr | 658 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 659 | ; |
660 | ; SOCKET_close |
||
661 | ; |
||
662 | ; IN: socket number in ecx |
||
663 | ; OUT: eax is socket num, -1 on error |
||
664 | ; |
||
1257 | hidnplayr | 665 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 666 | align 4 |
1514 | hidnplayr | 667 | SOCKET_close: |
1159 | hidnplayr | 668 | |
2402 | hidnplayr | 669 | DEBUGF 1,"SOCKET_close: socknum: %u\n", ecx |
1159 | hidnplayr | 670 | |
2402 | hidnplayr | 671 | call SOCKET_num_to_ptr |
672 | jz s_error |
||
1159 | hidnplayr | 673 | |
2402 | hidnplayr | 674 | cmp [eax + SOCKET.Domain], AF_INET4 |
675 | jne s_error |
||
1159 | hidnplayr | 676 | |
2402 | hidnplayr | 677 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
678 | je .free |
||
1159 | hidnplayr | 679 | |
2402 | hidnplayr | 680 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
681 | je .free |
||
1159 | hidnplayr | 682 | |
2402 | hidnplayr | 683 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
684 | je .free |
||
1542 | hidnplayr | 685 | |
2402 | hidnplayr | 686 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
687 | je .tcp |
||
1159 | hidnplayr | 688 | |
2402 | hidnplayr | 689 | jmp s_error |
1159 | hidnplayr | 690 | |
691 | .tcp: |
||
2402 | hidnplayr | 692 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
693 | jb .free |
||
1318 | hidnplayr | 694 | |
2541 | hidnplayr | 695 | call TCP_drop |
2402 | hidnplayr | 696 | mov dword [esp+32], 0 |
1159 | hidnplayr | 697 | |
2402 | hidnplayr | 698 | ret |
1159 | hidnplayr | 699 | |
1514 | hidnplayr | 700 | .free: |
2402 | hidnplayr | 701 | call SOCKET_free |
702 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 703 | |
2402 | hidnplayr | 704 | ret |
1159 | hidnplayr | 705 | |
706 | |||
1257 | hidnplayr | 707 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 708 | ; |
709 | ; SOCKET_receive |
||
710 | ; |
||
711 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 712 | ; addr to buffer in edx |
713 | ; length of buffer in esi |
||
1159 | hidnplayr | 714 | ; flags in edi |
715 | ; OUT: eax is number of bytes copied, -1 on error |
||
716 | ; |
||
1257 | hidnplayr | 717 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 718 | align 4 |
1514 | hidnplayr | 719 | SOCKET_receive: |
1159 | hidnplayr | 720 | |
2402 | hidnplayr | 721 | DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi |
1514 | hidnplayr | 722 | |
2402 | hidnplayr | 723 | call SOCKET_num_to_ptr |
724 | jz s_error |
||
1159 | hidnplayr | 725 | |
2402 | hidnplayr | 726 | jmp [eax + SOCKET.rcv_proc] |
1533 | hidnplayr | 727 | |
1536 | hidnplayr | 728 | |
729 | align 4 |
||
1541 | hidnplayr | 730 | SOCKET_receive_dgram: |
1536 | hidnplayr | 731 | |
2402 | hidnplayr | 732 | DEBUGF 1,"SOCKET_receive: DGRAM\n" |
1536 | hidnplayr | 733 | |
2402 | hidnplayr | 734 | mov ebx, esi |
735 | mov edi, edx ; addr to buffer |
||
1159 | hidnplayr | 736 | |
2402 | hidnplayr | 737 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, s_error ; destroys esi and ecx |
1536 | hidnplayr | 738 | |
2402 | hidnplayr | 739 | mov ecx, [esi + socket_queue_entry.data_size] |
740 | DEBUGF 1,"Got %u bytes of data\n", ecx |
||
1159 | hidnplayr | 741 | |
2402 | hidnplayr | 742 | cmp ecx, ebx |
743 | ja .too_small |
||
1514 | hidnplayr | 744 | |
2402 | hidnplayr | 745 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
746 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
747 | DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi |
||
748 | mov [esp+32+4], ecx ; return number of bytes copied |
||
1159 | hidnplayr | 749 | |
1514 | hidnplayr | 750 | ; copy the data |
2402 | hidnplayr | 751 | shr ecx, 1 |
752 | jnc .nb |
||
753 | movsb |
||
1536 | hidnplayr | 754 | .nb: |
2402 | hidnplayr | 755 | shr ecx, 1 |
756 | jnc .nw |
||
757 | movsw |
||
1536 | hidnplayr | 758 | .nw: |
2402 | hidnplayr | 759 | test ecx, ecx |
760 | jz .nd |
||
761 | rep movsd |
||
1536 | hidnplayr | 762 | .nd: |
1159 | hidnplayr | 763 | |
2402 | hidnplayr | 764 | call kernel_free ; remove the packet |
765 | ret |
||
1514 | hidnplayr | 766 | |
1536 | hidnplayr | 767 | .too_small: |
1533 | hidnplayr | 768 | |
2402 | hidnplayr | 769 | DEBUGF 1,"Buffer too small...\n" |
770 | jmp s_error |
||
1536 | hidnplayr | 771 | |
772 | align 4 |
||
773 | SOCKET_receive_tcp: |
||
774 | |||
2402 | hidnplayr | 775 | DEBUGF 1,"SOCKET_receive: TCP\n" |
1536 | hidnplayr | 776 | |
2402 | hidnplayr | 777 | mov ecx, esi |
778 | mov edi, edx |
||
779 | add eax, STREAM_SOCKET.rcv |
||
780 | call SOCKET_ring_read |
||
781 | call SOCKET_ring_free |
||
1533 | hidnplayr | 782 | |
2402 | hidnplayr | 783 | mov [esp+32], ecx ; return number of bytes copied |
1533 | hidnplayr | 784 | |
2402 | hidnplayr | 785 | ret |
1159 | hidnplayr | 786 | |
787 | |||
1257 | hidnplayr | 788 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 789 | ; |
790 | ; SOCKET_send |
||
791 | ; |
||
792 | ; |
||
793 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 794 | ; pointer to data in edx |
795 | ; datalength in esi |
||
1159 | hidnplayr | 796 | ; flags in edi |
797 | ; OUT: -1 on error |
||
798 | ; |
||
1257 | hidnplayr | 799 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 800 | align 4 |
1514 | hidnplayr | 801 | SOCKET_send: |
1159 | hidnplayr | 802 | |
2402 | hidnplayr | 803 | DEBUGF 1,"SOCKET_send: socknum: %u data ptr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi |
1159 | hidnplayr | 804 | |
2402 | hidnplayr | 805 | call SOCKET_num_to_ptr |
806 | jz s_error |
||
1159 | hidnplayr | 807 | |
2402 | hidnplayr | 808 | mov ecx, esi |
809 | mov esi, edx |
||
1763 | hidnplayr | 810 | |
2402 | hidnplayr | 811 | jmp [eax + SOCKET.snd_proc] |
1206 | hidnplayr | 812 | |
813 | |||
1536 | hidnplayr | 814 | align 4 |
815 | SOCKET_send_udp: |
||
1529 | hidnplayr | 816 | |
2402 | hidnplayr | 817 | DEBUGF 1,"SOCKET_send: UDP\n" |
1159 | hidnplayr | 818 | |
2573 | hidnplayr | 819 | mov [esp+32], ecx |
2402 | hidnplayr | 820 | call UDP_output |
2573 | hidnplayr | 821 | cmp eax, -1 |
822 | je s_error |
||
2402 | hidnplayr | 823 | ret |
1159 | hidnplayr | 824 | |
825 | |||
1536 | hidnplayr | 826 | align 4 |
827 | SOCKET_send_tcp: |
||
1254 | hidnplayr | 828 | |
2402 | hidnplayr | 829 | DEBUGF 1,"SOCKET_send: TCP\n" |
1254 | hidnplayr | 830 | |
2402 | hidnplayr | 831 | push eax |
832 | add eax, STREAM_SOCKET.snd |
||
833 | call SOCKET_ring_write |
||
834 | pop eax |
||
1536 | hidnplayr | 835 | |
2621 | hidnplayr | 836 | mov [esp+32], ecx |
837 | |||
2402 | hidnplayr | 838 | call TCP_output |
839 | ret |
||
1159 | hidnplayr | 840 | |
1249 | hidnplayr | 841 | |
1543 | hidnplayr | 842 | align 4 |
843 | SOCKET_send_ip: |
||
1249 | hidnplayr | 844 | |
2402 | hidnplayr | 845 | DEBUGF 1,"type: IP\n" |
1543 | hidnplayr | 846 | |
2573 | hidnplayr | 847 | mov [esp+32], ecx |
2402 | hidnplayr | 848 | call IPv4_output_raw |
2573 | hidnplayr | 849 | cmp eax, -1 |
850 | je s_error |
||
2402 | hidnplayr | 851 | ret |
1543 | hidnplayr | 852 | |
2573 | hidnplayr | 853 | |
1541 | hidnplayr | 854 | align 4 |
855 | SOCKET_send_icmp: |
||
1249 | hidnplayr | 856 | |
2402 | hidnplayr | 857 | DEBUGF 1,"SOCKET_send: ICMP\n" |
1541 | hidnplayr | 858 | |
2573 | hidnplayr | 859 | mov [esp+32], ecx |
2402 | hidnplayr | 860 | call ICMP_output_raw |
2573 | hidnplayr | 861 | cmp eax, -1 |
862 | je s_error |
||
2402 | hidnplayr | 863 | ret |
1541 | hidnplayr | 864 | |
865 | |||
866 | |||
867 | |||
1257 | hidnplayr | 868 | ;----------------------------------------------------------------- |
1256 | clevermous | 869 | ; |
1257 | hidnplayr | 870 | ; SOCKET_get_options |
1256 | clevermous | 871 | ; |
1514 | hidnplayr | 872 | ; IN: ecx = socket number |
873 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 874 | ; dd level, optname, optval, optlen |
1256 | clevermous | 875 | ; OUT: -1 on error |
876 | ; |
||
877 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
878 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1831 | hidnplayr | 879 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
1256 | clevermous | 880 | ; |
1257 | hidnplayr | 881 | ;----------------------------------------------------------------- |
882 | align 4 |
||
1514 | hidnplayr | 883 | SOCKET_get_opt: |
1257 | hidnplayr | 884 | |
2402 | hidnplayr | 885 | DEBUGF 1,"SOCKET_get_opt\n" |
1514 | hidnplayr | 886 | |
2402 | hidnplayr | 887 | call SOCKET_num_to_ptr |
888 | jz s_error |
||
1514 | hidnplayr | 889 | |
2402 | hidnplayr | 890 | cmp dword [edx], IP_PROTO_TCP |
891 | jne s_error |
||
892 | cmp dword [edx+4], -2 |
||
893 | je @f |
||
894 | cmp dword [edx+4], -3 |
||
895 | jne s_error |
||
1299 | clevermous | 896 | @@: |
1514 | hidnplayr | 897 | ; mov eax, [edx+12] |
898 | ; test eax, eax |
||
899 | ; jz .fail |
||
900 | ; cmp dword [eax], 4 |
||
901 | ; mov dword [eax], 4 |
||
902 | ; jb .fail |
||
903 | ; stdcall net_socket_num_to_addr, ecx |
||
904 | ; test eax, eax |
||
905 | ; jz .fail |
||
906 | ; ; todo: check that eax is really TCP socket |
||
907 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
908 | ; cmp dword [edx+4], -2 |
||
909 | ; jz @f |
||
910 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 911 | @@: |
2402 | hidnplayr | 912 | mov eax, [edx+8] |
913 | test eax, eax |
||
914 | jz @f |
||
915 | mov [eax], ecx |
||
1256 | clevermous | 916 | @@: |
2402 | hidnplayr | 917 | mov dword [esp+32], 0 |
918 | ret |
||
1159 | hidnplayr | 919 | |
920 | |||
1529 | hidnplayr | 921 | |
1542 | hidnplayr | 922 | |
923 | align 4 |
||
924 | SOCKET_set_opt: |
||
925 | |||
2402 | hidnplayr | 926 | ret |
1542 | hidnplayr | 927 | |
928 | |||
929 | |||
1257 | hidnplayr | 930 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 931 | ; |
1529 | hidnplayr | 932 | ; SOCKET_debug |
933 | ; |
||
934 | ; Copies socket variables to application buffer |
||
935 | ; |
||
936 | ; IN: ecx = socket number |
||
937 | ; edx = pointer to buffer |
||
938 | ; |
||
939 | ; OUT: -1 on error |
||
940 | ;----------------------------------------------------------------- |
||
941 | align 4 |
||
942 | SOCKET_debug: |
||
943 | |||
2402 | hidnplayr | 944 | DEBUGF 1,"socket_debug\n" |
1529 | hidnplayr | 945 | |
2402 | hidnplayr | 946 | call SOCKET_num_to_ptr |
947 | jz s_error |
||
1529 | hidnplayr | 948 | |
2402 | hidnplayr | 949 | mov esi, eax |
950 | mov edi, edx |
||
951 | mov ecx, SOCKETBUFFSIZE/4 |
||
952 | rep movsd |
||
1529 | hidnplayr | 953 | |
2402 | hidnplayr | 954 | mov dword [esp+32], 0 |
955 | ret |
||
1529 | hidnplayr | 956 | |
957 | |||
958 | ;----------------------------------------------------------------- |
||
959 | ; |
||
1514 | hidnplayr | 960 | ; SOCKET_find_port |
1206 | hidnplayr | 961 | ; |
1514 | hidnplayr | 962 | ; Fills in the local port number for TCP and UDP sockets |
963 | ; This procedure always works because the number of sockets is |
||
964 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 965 | ; |
1514 | hidnplayr | 966 | ; IN: eax = socket pointer |
967 | ; OUT: / |
||
1206 | hidnplayr | 968 | ; |
1257 | hidnplayr | 969 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 970 | align 4 |
1514 | hidnplayr | 971 | SOCKET_find_port: |
1159 | hidnplayr | 972 | |
2402 | hidnplayr | 973 | DEBUGF 1,"SOCKET_find_port\n" |
1159 | hidnplayr | 974 | |
2402 | hidnplayr | 975 | push ebx esi ecx |
1514 | hidnplayr | 976 | |
2402 | hidnplayr | 977 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
978 | je .udp |
||
1159 | hidnplayr | 979 | |
2402 | hidnplayr | 980 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
981 | je .tcp |
||
1159 | hidnplayr | 982 | |
2402 | hidnplayr | 983 | jmp .error |
1514 | hidnplayr | 984 | |
985 | .done: |
||
2402 | hidnplayr | 986 | mov [eax + UDP_SOCKET.LocalPort], bx |
1514 | hidnplayr | 987 | .error: |
2402 | hidnplayr | 988 | pop ecx esi ebx |
989 | ret |
||
1514 | hidnplayr | 990 | |
1206 | hidnplayr | 991 | .udp: |
2402 | hidnplayr | 992 | mov bx, [last_UDP_port] |
993 | call .findit |
||
994 | mov [last_UDP_port], bx |
||
995 | jmp .done |
||
1206 | hidnplayr | 996 | |
997 | .tcp: |
||
2402 | hidnplayr | 998 | mov bx, [last_TCP_port] |
999 | call .findit |
||
1000 | mov [last_TCP_port], bx |
||
1001 | jmp .done |
||
1206 | hidnplayr | 1002 | |
1003 | |||
1514 | hidnplayr | 1004 | .restart: |
2402 | hidnplayr | 1005 | mov bx, MIN_EPHEMERAL_PORT |
1514 | hidnplayr | 1006 | .findit: |
2402 | hidnplayr | 1007 | inc bx |
1206 | hidnplayr | 1008 | |
2402 | hidnplayr | 1009 | cmp bx, MAX_EPHEMERAL_PORT |
1010 | jz .restart |
||
1206 | hidnplayr | 1011 | |
2402 | hidnplayr | 1012 | call SOCKET_check_port |
1013 | jz .findit |
||
1206 | hidnplayr | 1014 | |
2402 | hidnplayr | 1015 | ret |
1206 | hidnplayr | 1016 | |
1257 | hidnplayr | 1017 | |
1018 | |||
1019 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1020 | ; |
1542 | hidnplayr | 1021 | ; SOCKET_check_port (to be used with AF_INET only!) |
1206 | hidnplayr | 1022 | ; |
1514 | hidnplayr | 1023 | ; Checks if a local port number is unused |
1024 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 1025 | ; |
1514 | hidnplayr | 1026 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
1027 | ; bx = proposed socket number |
||
1206 | hidnplayr | 1028 | ; |
1514 | hidnplayr | 1029 | ; OUT: ZF = cleared on error |
1030 | ; |
||
1257 | hidnplayr | 1031 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1032 | align 4 |
1514 | hidnplayr | 1033 | SOCKET_check_port: |
1034 | |||
2402 | hidnplayr | 1035 | DEBUGF 1,"SOCKET_check_port\n" |
1514 | hidnplayr | 1036 | |
2402 | hidnplayr | 1037 | mov ecx, [eax + SOCKET.Protocol] |
2622 | hidnplayr | 1038 | mov edx, [eax + IP_SOCKET.LocalIP] |
2402 | hidnplayr | 1039 | mov esi, net_sockets |
1206 | hidnplayr | 1040 | |
1041 | .next_socket: |
||
2402 | hidnplayr | 1042 | mov esi, [esi + SOCKET.NextPtr] |
1043 | or esi, esi |
||
1044 | jz .port_ok |
||
1206 | hidnplayr | 1045 | |
2402 | hidnplayr | 1046 | cmp [esi + SOCKET.Protocol], ecx |
1047 | jne .next_socket |
||
1206 | hidnplayr | 1048 | |
2622 | hidnplayr | 1049 | cmp [esi + IP_SOCKET.LocalIP], edx |
1050 | jne .next_socket |
||
1051 | |||
2402 | hidnplayr | 1052 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1053 | jne .next_socket |
||
1206 | hidnplayr | 1054 | |
2402 | hidnplayr | 1055 | DEBUGF 1,"local port %u already in use\n", bx |
1056 | ret |
||
1206 | hidnplayr | 1057 | |
1058 | .port_ok: |
||
2402 | hidnplayr | 1059 | mov [eax + UDP_SOCKET.LocalPort], bx |
1060 | or bx, bx ; set the zero-flag |
||
1514 | hidnplayr | 1061 | |
2402 | hidnplayr | 1062 | ret |
1206 | hidnplayr | 1063 | |
1064 | |||
1257 | hidnplayr | 1065 | |
1066 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1067 | ; |
1514 | hidnplayr | 1068 | ; SOCKET_input |
1206 | hidnplayr | 1069 | ; |
1536 | hidnplayr | 1070 | ; Updates a (stateless) socket with received data |
1206 | hidnplayr | 1071 | ; |
1514 | hidnplayr | 1072 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 1073 | ; |
1249 | hidnplayr | 1074 | ; IN: eax = socket ptr |
1514 | hidnplayr | 1075 | ; ebx = pointer to device struct |
1076 | ; ecx = data size |
||
1077 | ; esi = ptr to data |
||
1078 | ; [esp] = ptr to buf |
||
1079 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1080 | ; |
1514 | hidnplayr | 1081 | ; OUT: / |
1206 | hidnplayr | 1082 | ; |
1257 | hidnplayr | 1083 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1084 | align 4 |
1514 | hidnplayr | 1085 | SOCKET_input: |
1206 | hidnplayr | 1086 | |
2402 | hidnplayr | 1087 | DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1088 | |
2402 | hidnplayr | 1089 | mov [esp+4], ecx |
1090 | push esi |
||
1091 | mov esi, esp |
||
1514 | hidnplayr | 1092 | |
2402 | hidnplayr | 1093 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
1514 | hidnplayr | 1094 | |
2402 | hidnplayr | 1095 | DEBUGF 1,"SOCKET_input: queued packet successfully\n" |
1096 | add esp, sizeof.socket_queue_entry |
||
1206 | hidnplayr | 1097 | |
2402 | hidnplayr | 1098 | pusha |
1099 | lea ecx, [eax + SOCKET.mutex] |
||
1100 | call mutex_unlock |
||
1101 | popa |
||
1102 | |||
1103 | jmp SOCKET_notify_owner |
||
1104 | |||
1514 | hidnplayr | 1105 | .full: |
2402 | hidnplayr | 1106 | DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax |
1206 | hidnplayr | 1107 | |
2402 | hidnplayr | 1108 | pusha |
1109 | lea ecx, [eax + SOCKET.mutex] |
||
1110 | call mutex_unlock |
||
1111 | popa |
||
1514 | hidnplayr | 1112 | |
2402 | hidnplayr | 1113 | call kernel_free |
1114 | add esp, 8 |
||
1533 | hidnplayr | 1115 | |
2402 | hidnplayr | 1116 | ret |
1117 | |||
1118 | |||
1533 | hidnplayr | 1119 | ;-------------------------- |
1120 | ; |
||
1121 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1122 | ; |
||
1123 | align 4 |
||
1124 | SOCKET_ring_create: |
||
1125 | |||
2402 | hidnplayr | 1126 | push esi |
1127 | mov esi, eax |
||
1543 | hidnplayr | 1128 | |
2402 | hidnplayr | 1129 | push edx |
1130 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1131 | pop edx |
||
1533 | hidnplayr | 1132 | |
2402 | hidnplayr | 1133 | DEBUGF 1,"SOCKET_ring_created: %x\n", eax |
1134 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1135 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1136 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1137 | mov [esi + RING_BUFFER.size], 0 |
||
1138 | add eax, SOCKET_MAXDATA |
||
1139 | mov [esi + RING_BUFFER.end_ptr], eax |
||
1140 | mov eax, esi |
||
1141 | pop esi |
||
1533 | hidnplayr | 1142 | |
2402 | hidnplayr | 1143 | ret |
1533 | hidnplayr | 1144 | |
1514 | hidnplayr | 1145 | ;----------------------------------------------------------------- |
1146 | ; |
||
1533 | hidnplayr | 1147 | ; SOCKET_ring_write |
1529 | hidnplayr | 1148 | ; |
1533 | hidnplayr | 1149 | ; Adds data to a stream socket, and updates write pointer and size |
1529 | hidnplayr | 1150 | ; |
1151 | ; IN: eax = ptr to ring struct |
||
1152 | ; ecx = data size |
||
1153 | ; esi = ptr to data |
||
1154 | ; |
||
1533 | hidnplayr | 1155 | ; OUT: ecx = number of bytes stored |
1529 | hidnplayr | 1156 | ; |
1157 | ;----------------------------------------------------------------- |
||
1158 | align 4 |
||
1533 | hidnplayr | 1159 | SOCKET_ring_write: |
1529 | hidnplayr | 1160 | |
2402 | hidnplayr | 1161 | DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
1529 | hidnplayr | 1162 | |
2402 | hidnplayr | 1163 | add [eax + RING_BUFFER.size], ecx |
2573 | hidnplayr | 1164 | jc .way_too_large |
2402 | hidnplayr | 1165 | cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA |
1166 | ja .too_large |
||
1529 | hidnplayr | 1167 | |
1168 | .copy: |
||
2402 | hidnplayr | 1169 | mov edi, [eax + RING_BUFFER.write_ptr] |
1170 | DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
||
1529 | hidnplayr | 1171 | |
2402 | hidnplayr | 1172 | push ecx |
1173 | shr ecx, 1 |
||
1174 | jnc .nb |
||
1175 | movsb |
||
1536 | hidnplayr | 1176 | .nb: |
2402 | hidnplayr | 1177 | shr ecx, 1 |
1178 | jnc .nw |
||
1179 | movsw |
||
1536 | hidnplayr | 1180 | .nw: |
2402 | hidnplayr | 1181 | test ecx, ecx |
1182 | jz .nd |
||
1183 | rep movsd |
||
1536 | hidnplayr | 1184 | .nd: |
2402 | hidnplayr | 1185 | pop ecx |
1529 | hidnplayr | 1186 | |
2402 | hidnplayr | 1187 | cmp edi, [eax + RING_BUFFER.end_ptr] |
1188 | jae .wrap |
||
1189 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1190 | |
2402 | hidnplayr | 1191 | ret |
1529 | hidnplayr | 1192 | |
1533 | hidnplayr | 1193 | .wrap: |
2402 | hidnplayr | 1194 | sub edi, SOCKET_MAXDATA |
1195 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1196 | |
2402 | hidnplayr | 1197 | ret |
1533 | hidnplayr | 1198 | |
2404 | hidnplayr | 1199 | .too_large: ; update size, we will fill buffer completely |
1200 | sub [eax + RING_BUFFER.size], SOCKET_MAXDATA |
||
2402 | hidnplayr | 1201 | sub ecx, [eax + RING_BUFFER.size] |
2404 | hidnplayr | 1202 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA |
2573 | hidnplayr | 1203 | ja .copy |
1529 | hidnplayr | 1204 | |
2573 | hidnplayr | 1205 | .full: |
2402 | hidnplayr | 1206 | DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n" |
1207 | xor ecx, ecx |
||
1208 | ret |
||
1529 | hidnplayr | 1209 | |
2573 | hidnplayr | 1210 | .way_too_large: |
1211 | sub [eax + RING_BUFFER.size], ecx |
||
1212 | mov ecx, SOCKET_MAXDATA |
||
1213 | sub ecx, [eax + RING_BUFFER.size] |
||
1214 | ja .copy |
||
1215 | jmp .full |
||
1529 | hidnplayr | 1216 | |
2573 | hidnplayr | 1217 | |
1218 | |||
1529 | hidnplayr | 1219 | ;----------------------------------------------------------------- |
1220 | ; |
||
1221 | ; SOCKET_ring_read |
||
1222 | ; |
||
1533 | hidnplayr | 1223 | ; reads the data, BUT DOES NOT CLEAR IT FROM MEMORY YET |
1529 | hidnplayr | 1224 | ; |
1225 | ; IN: eax = ptr to ring struct |
||
1226 | ; ecx = buffer size |
||
1227 | ; edi = ptr to buffer |
||
1228 | ; |
||
1533 | hidnplayr | 1229 | ; OUT: ecx = number of bytes read |
1529 | hidnplayr | 1230 | ; |
1231 | ;----------------------------------------------------------------- |
||
1232 | align 4 |
||
1233 | SOCKET_ring_read: |
||
1234 | |||
2402 | hidnplayr | 1235 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u\n", eax, edi, ecx |
1529 | hidnplayr | 1236 | |
2402 | hidnplayr | 1237 | cmp ecx, [eax + RING_BUFFER.size] |
1238 | ja .less_data |
||
1529 | hidnplayr | 1239 | |
1240 | .copy: |
||
2402 | hidnplayr | 1241 | mov esi, [eax + RING_BUFFER.read_ptr] |
1529 | hidnplayr | 1242 | |
2402 | hidnplayr | 1243 | DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
1244 | push ecx |
||
1245 | shr ecx, 1 |
||
1246 | jnc .nb |
||
1247 | movsb |
||
1536 | hidnplayr | 1248 | .nb: |
2402 | hidnplayr | 1249 | shr ecx, 1 |
1250 | jnc .nw |
||
1251 | movsw |
||
1536 | hidnplayr | 1252 | .nw: |
2402 | hidnplayr | 1253 | test ecx, ecx |
1254 | jz .nd |
||
1255 | rep movsd |
||
1536 | hidnplayr | 1256 | .nd: |
2402 | hidnplayr | 1257 | pop ecx |
1529 | hidnplayr | 1258 | |
1830 | hidnplayr | 1259 | .no_data_at_all: |
2402 | hidnplayr | 1260 | ret |
1529 | hidnplayr | 1261 | |
1533 | hidnplayr | 1262 | .less_data: |
2402 | hidnplayr | 1263 | mov ecx, [eax + RING_BUFFER.size] |
1830 | hidnplayr | 1264 | ; test ecx, ecx |
1533 | hidnplayr | 1265 | ; jz .no_data_at_all |
2402 | hidnplayr | 1266 | jmp .copy |
1529 | hidnplayr | 1267 | |
1268 | |||
1269 | ;----------------------------------------------------------------- |
||
1270 | ; |
||
1271 | ; SOCKET_ring_free |
||
1272 | ; |
||
1273 | ; Free's some bytes from the ringbuffer |
||
1274 | ; |
||
1275 | ; IN: eax = ptr to ring struct |
||
1276 | ; ecx = data size |
||
1277 | ; |
||
1278 | ; OUT: ecx = number of bytes free-ed |
||
1279 | ; |
||
1280 | ;----------------------------------------------------------------- |
||
1281 | align 4 |
||
1282 | SOCKET_ring_free: |
||
1283 | |||
2402 | hidnplayr | 1284 | DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
1529 | hidnplayr | 1285 | |
2402 | hidnplayr | 1286 | sub [eax + RING_BUFFER.size], ecx |
1287 | jb .sumthinwong |
||
1288 | add [eax + RING_BUFFER.read_ptr], ecx |
||
1529 | hidnplayr | 1289 | |
2402 | hidnplayr | 1290 | mov edx, [eax + RING_BUFFER.end_ptr] |
1291 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1292 | jb @f |
||
1293 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1529 | hidnplayr | 1294 | @@: |
2402 | hidnplayr | 1295 | ret |
1529 | hidnplayr | 1296 | |
2402 | hidnplayr | 1297 | .sumthinwong: ; we could free all available bytes, but that would be stupid, i guess.. |
1298 | add [eax + RING_BUFFER.size], ecx |
||
1299 | xor ecx, ecx |
||
1300 | ret |
||
1529 | hidnplayr | 1301 | |
1302 | |||
1303 | ;----------------------------------------------------------------- |
||
1304 | ; |
||
1514 | hidnplayr | 1305 | ; SOCKET_notify_owner |
1306 | ; |
||
1307 | ; notify's the owner of a socket that something happened |
||
1308 | ; |
||
1309 | ; IN: eax = socket ptr |
||
1310 | ; OUT: / |
||
1311 | ; |
||
1312 | ;----------------------------------------------------------------- |
||
1313 | align 4 |
||
1314 | SOCKET_notify_owner: |
||
1315 | |||
2402 | hidnplayr | 1316 | DEBUGF 1,"SOCKET_notify_owner: %x\n", eax |
1514 | hidnplayr | 1317 | |
2402 | hidnplayr | 1318 | call SOCKET_check |
1319 | jz .error |
||
1514 | hidnplayr | 1320 | |
2402 | hidnplayr | 1321 | push eax ecx esi |
1514 | hidnplayr | 1322 | |
1323 | ; socket exists, now try to flag an event to the application |
||
1324 | |||
2402 | hidnplayr | 1325 | mov eax, [eax + SOCKET.PID] |
2629 | hidnplayr | 1326 | test eax, eax |
1327 | jz .error2 |
||
2402 | hidnplayr | 1328 | mov ecx, 1 |
1329 | mov esi, TASK_DATA + TASKDATA.pid |
||
1206 | hidnplayr | 1330 | |
1331 | .next_pid: |
||
2402 | hidnplayr | 1332 | cmp [esi], eax |
1333 | je .found_pid |
||
1334 | inc ecx |
||
1335 | add esi, 0x20 |
||
1336 | cmp ecx, [TASK_COUNT] |
||
1337 | jbe .next_pid |
||
1206 | hidnplayr | 1338 | |
1514 | hidnplayr | 1339 | ; PID not found, TODO: close socket! |
1340 | |||
2402 | hidnplayr | 1341 | jmp .error2 |
1514 | hidnplayr | 1342 | |
1206 | hidnplayr | 1343 | .found_pid: |
2402 | hidnplayr | 1344 | shl ecx, 8 |
1345 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1346 | mov [check_idle_semaphore], 200 |
||
1206 | hidnplayr | 1347 | |
2402 | hidnplayr | 1348 | DEBUGF 1,"SOCKET_notify_owner: succes!\n" |
1514 | hidnplayr | 1349 | |
1350 | .error2: |
||
2402 | hidnplayr | 1351 | pop esi ecx eax |
1536 | hidnplayr | 1352 | |
1514 | hidnplayr | 1353 | .error: |
1354 | |||
2402 | hidnplayr | 1355 | ret |
1206 | hidnplayr | 1356 | |
1357 | |||
1514 | hidnplayr | 1358 | ;-------------------------------------------------------------------- |
1359 | ; |
||
1360 | ; SOCKET_alloc |
||
1361 | ; |
||
1159 | hidnplayr | 1362 | ; Allocate memory for socket data and put new socket into the list |
1363 | ; Newly created socket is initialized with calling PID and number and |
||
1364 | ; put into beginning of list (which is a fastest way). |
||
1365 | ; |
||
1514 | hidnplayr | 1366 | ; IN: / |
1367 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1368 | ; edi = socket number |
||
1369 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1370 | ; |
1514 | hidnplayr | 1371 | ;-------------------------------------------------------------------- |
1372 | align 4 |
||
1373 | SOCKET_alloc: |
||
1374 | |||
2402 | hidnplayr | 1375 | push ebx |
1514 | hidnplayr | 1376 | |
2402 | hidnplayr | 1377 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1378 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
||
1379 | or eax, eax |
||
1380 | jz .exit |
||
1159 | hidnplayr | 1381 | |
1514 | hidnplayr | 1382 | ; zero-initialize allocated memory |
2402 | hidnplayr | 1383 | push eax |
1384 | mov edi, eax |
||
1385 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1386 | xor eax, eax |
||
1387 | rep stosd |
||
1388 | pop eax |
||
1159 | hidnplayr | 1389 | |
1536 | hidnplayr | 1390 | ; set send-and receive procedures to return -1 |
2402 | hidnplayr | 1391 | mov [eax + SOCKET.snd_proc], s_error |
1392 | mov [eax + SOCKET.rcv_proc], s_error |
||
1536 | hidnplayr | 1393 | |
1514 | hidnplayr | 1394 | ; find first free socket number and use it |
2402 | hidnplayr | 1395 | mov edi, [last_socket_num] |
1159 | hidnplayr | 1396 | .next_socket_number: |
2402 | hidnplayr | 1397 | inc edi |
1398 | jz .next_socket_number ; avoid socket nr 0 |
||
1399 | cmp edi, -1 |
||
1400 | je .next_socket_number ; avoid socket nr -1 |
||
1401 | mov ebx, net_sockets |
||
1159 | hidnplayr | 1402 | .next_socket: |
2402 | hidnplayr | 1403 | mov ebx, [ebx + SOCKET.NextPtr] |
1404 | test ebx, ebx |
||
1405 | jz .last_socket |
||
1536 | hidnplayr | 1406 | |
2402 | hidnplayr | 1407 | cmp [ebx + SOCKET.Number], edi |
1408 | jne .next_socket |
||
1409 | jmp .next_socket_number |
||
1159 | hidnplayr | 1410 | |
1514 | hidnplayr | 1411 | .last_socket: |
2402 | hidnplayr | 1412 | mov [last_socket_num], edi |
1413 | mov [eax + SOCKET.Number], edi |
||
1414 | DEBUGF 1, "SOCKET_alloc: number=%u\n", edi |
||
1159 | hidnplayr | 1415 | |
1514 | hidnplayr | 1416 | ; Fill in PID |
2402 | hidnplayr | 1417 | mov ebx, [TASK_BASE] |
1418 | mov ebx, [ebx + TASKDATA.pid] |
||
1419 | mov [eax + SOCKET.PID], ebx |
||
1514 | hidnplayr | 1420 | |
2403 | hidnplayr | 1421 | ; init mutex |
1422 | pusha |
||
1423 | lea ecx, [eax + SOCKET.mutex] |
||
1424 | call mutex_init |
||
1425 | popa |
||
1426 | |||
1529 | hidnplayr | 1427 | ; add socket to the list by re-arranging some pointers |
2402 | hidnplayr | 1428 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1514 | hidnplayr | 1429 | |
2402 | hidnplayr | 1430 | mov [eax + SOCKET.PrevPtr], net_sockets |
1431 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1432 | |
2402 | hidnplayr | 1433 | test ebx, ebx |
1434 | jz @f |
||
1435 | |||
1436 | pusha |
||
1437 | lea ecx, [ebx + SOCKET.mutex] |
||
1438 | call mutex_lock |
||
1439 | popa |
||
1440 | |||
1441 | mov [ebx + SOCKET.PrevPtr], eax |
||
1442 | |||
1443 | pusha |
||
1444 | lea ecx, [ebx + SOCKET.mutex] |
||
1445 | call mutex_unlock |
||
1446 | popa |
||
1514 | hidnplayr | 1447 | @@: |
1448 | |||
2402 | hidnplayr | 1449 | mov [net_sockets + SOCKET.NextPtr], eax |
1450 | or eax, eax ; used to clear zero flag |
||
1159 | hidnplayr | 1451 | .exit: |
2402 | hidnplayr | 1452 | pop ebx |
1514 | hidnplayr | 1453 | |
2402 | hidnplayr | 1454 | ret |
1159 | hidnplayr | 1455 | |
1514 | hidnplayr | 1456 | |
1457 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1458 | ; |
1514 | hidnplayr | 1459 | ; SOCKET_free |
1159 | hidnplayr | 1460 | ; |
1514 | hidnplayr | 1461 | ; Free socket data memory and remove socket from the list |
1462 | ; |
||
1463 | ; IN: eax = socket ptr |
||
1464 | ; OUT: / |
||
1465 | ; |
||
1466 | ;---------------------------------------------------- |
||
1467 | align 4 |
||
1468 | SOCKET_free: |
||
1159 | hidnplayr | 1469 | |
2402 | hidnplayr | 1470 | DEBUGF 1, "SOCKET_free: %x\n", eax |
1514 | hidnplayr | 1471 | |
2402 | hidnplayr | 1472 | call SOCKET_check |
1473 | jz .error |
||
1159 | hidnplayr | 1474 | |
2402 | hidnplayr | 1475 | push ebx |
1514 | hidnplayr | 1476 | |
2402 | hidnplayr | 1477 | pusha |
1478 | lea ecx, [eax + SOCKET.mutex] |
||
1479 | call mutex_lock |
||
1480 | popa |
||
1514 | hidnplayr | 1481 | |
2402 | hidnplayr | 1482 | DEBUGF 1, "SOCKET_free: freeing socket..\n" |
1529 | hidnplayr | 1483 | |
2402 | hidnplayr | 1484 | cmp [eax + SOCKET.Domain], AF_INET4 |
1485 | jnz .no_tcp |
||
1529 | hidnplayr | 1486 | |
2402 | hidnplayr | 1487 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1488 | jnz .no_tcp |
||
1489 | |||
1490 | mov ebx, eax |
||
1491 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1492 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1493 | mov eax, ebx |
||
1536 | hidnplayr | 1494 | .no_tcp: |
1529 | hidnplayr | 1495 | |
2402 | hidnplayr | 1496 | push eax ; this will be passed to kernel_free |
1497 | mov ebx, [eax + SOCKET.NextPtr] |
||
1498 | mov eax, [eax + SOCKET.PrevPtr] |
||
1514 | hidnplayr | 1499 | |
2402 | hidnplayr | 1500 | DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
1514 | hidnplayr | 1501 | |
2402 | hidnplayr | 1502 | test eax, eax |
1503 | jz @f |
||
1504 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1505 | @@: |
1159 | hidnplayr | 1506 | |
2402 | hidnplayr | 1507 | test ebx, ebx |
1508 | jz @f |
||
1509 | mov [ebx + SOCKET.PrevPtr], eax |
||
1514 | hidnplayr | 1510 | @@: |
1249 | hidnplayr | 1511 | |
2402 | hidnplayr | 1512 | call kernel_free |
1513 | pop ebx |
||
1159 | hidnplayr | 1514 | |
2402 | hidnplayr | 1515 | DEBUGF 1, "SOCKET_free: success!\n" |
1514 | hidnplayr | 1516 | |
1159 | hidnplayr | 1517 | .error: |
2402 | hidnplayr | 1518 | ret |
1159 | hidnplayr | 1519 | |
1543 | hidnplayr | 1520 | ;------------------------------------ |
1521 | ; |
||
1522 | ; SOCKET_fork |
||
1523 | ; |
||
1524 | ; Create a child socket |
||
1525 | ; |
||
1533 | hidnplayr | 1526 | ; IN: socket nr in ebx |
1543 | hidnplayr | 1527 | ; OUT: child socket nr in eax |
1528 | ; |
||
1529 | ;----------------------------------- |
||
1529 | hidnplayr | 1530 | align 4 |
1531 | SOCKET_fork: |
||
1532 | |||
2402 | hidnplayr | 1533 | DEBUGF 1,"SOCKET_fork: %x\n", ebx |
1529 | hidnplayr | 1534 | |
1543 | hidnplayr | 1535 | ; Exit if backlog queue is full |
2402 | hidnplayr | 1536 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
1537 | cmp ax, [ebx + SOCKET.backlog] |
||
1538 | jae .fail |
||
1543 | hidnplayr | 1539 | |
1529 | hidnplayr | 1540 | ; Allocate new socket |
2402 | hidnplayr | 1541 | push ebx |
1542 | call SOCKET_alloc |
||
1543 | pop ebx |
||
1544 | jz .fail |
||
1529 | hidnplayr | 1545 | |
2402 | hidnplayr | 1546 | push eax |
1547 | mov esi, esp |
||
1548 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
1549 | pop eax |
||
1543 | hidnplayr | 1550 | |
1551 | ; Copy structure from current socket to new |
||
1552 | ; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket |
||
2402 | hidnplayr | 1553 | lea esi, [ebx + SOCKET.PID] |
1554 | lea edi, [eax + SOCKET.PID] |
||
1555 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
1556 | rep movsd |
||
1529 | hidnplayr | 1557 | |
2402 | hidnplayr | 1558 | and [eax + SOCKET.options], not SO_ACCEPTCON |
1529 | hidnplayr | 1559 | |
2402 | hidnplayr | 1560 | ret |
1529 | hidnplayr | 1561 | |
1543 | hidnplayr | 1562 | .fail2: |
2402 | hidnplayr | 1563 | add esp, 4+4+4 |
1543 | hidnplayr | 1564 | .fail: |
2402 | hidnplayr | 1565 | DEBUGF 1,"SOCKET_fork: failed\n" |
1566 | xor eax, eax |
||
1567 | ret |
||
1529 | hidnplayr | 1568 | |
1543 | hidnplayr | 1569 | |
1514 | hidnplayr | 1570 | ;--------------------------------------------------- |
1571 | ; |
||
1572 | ; SOCKET_num_to_ptr |
||
1573 | ; |
||
1159 | hidnplayr | 1574 | ; Get socket structure address by its number |
1575 | ; |
||
1514 | hidnplayr | 1576 | ; IN: ecx = socket number |
1533 | hidnplayr | 1577 | ; OUT: eax = 0 on error, socket ptr otherwise |
1514 | hidnplayr | 1578 | ; ZF = set on error |
1159 | hidnplayr | 1579 | ; |
1514 | hidnplayr | 1580 | ;--------------------------------------------------- |
1581 | align 4 |
||
1582 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1583 | |
2402 | hidnplayr | 1584 | DEBUGF 1,"SOCKET_num_to_ptr: %u ", ecx |
1514 | hidnplayr | 1585 | |
2402 | hidnplayr | 1586 | mov eax, net_sockets |
1514 | hidnplayr | 1587 | |
1159 | hidnplayr | 1588 | .next_socket: |
2402 | hidnplayr | 1589 | mov eax, [eax + SOCKET.NextPtr] |
1590 | or eax, eax |
||
1591 | jz .error |
||
1592 | cmp [eax + SOCKET.Number], ecx |
||
1593 | jne .next_socket |
||
1159 | hidnplayr | 1594 | |
2402 | hidnplayr | 1595 | test eax, eax |
1159 | hidnplayr | 1596 | |
2402 | hidnplayr | 1597 | DEBUGF 1,"(%x)\n", eax |
1159 | hidnplayr | 1598 | .error: |
2402 | hidnplayr | 1599 | ret |
1159 | hidnplayr | 1600 | |
1514 | hidnplayr | 1601 | |
1602 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1603 | ; |
1514 | hidnplayr | 1604 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1605 | ; |
1514 | hidnplayr | 1606 | ; Get socket number by its address |
1607 | ; |
||
1608 | ; IN: eax = socket ptr |
||
1609 | ; OUT: eax = 0 on error, socket num otherwise |
||
1610 | ; ZF = set on error |
||
1611 | ; |
||
1612 | ;--------------------------------------------------- |
||
1613 | align 4 |
||
1614 | SOCKET_ptr_to_num: |
||
1615 | |||
2402 | hidnplayr | 1616 | DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax |
1514 | hidnplayr | 1617 | |
2402 | hidnplayr | 1618 | call SOCKET_check |
1619 | jz .error |
||
1159 | hidnplayr | 1620 | |
2402 | hidnplayr | 1621 | mov eax, [eax + SOCKET.Number] |
1514 | hidnplayr | 1622 | |
2402 | hidnplayr | 1623 | DEBUGF 1,"(%u)\n", eax |
1514 | hidnplayr | 1624 | |
1625 | .error: |
||
2402 | hidnplayr | 1626 | ret |
1514 | hidnplayr | 1627 | |
1628 | |||
1629 | ;--------------------------------------------------- |
||
1630 | ; |
||
1631 | ; SOCKET_check |
||
1632 | ; |
||
1633 | ; checks if the given value is really a socket ptr |
||
1634 | ; |
||
1635 | ; IN: eax = socket ptr |
||
1636 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1637 | ; ZF = set on error |
||
1638 | ; |
||
1639 | ;--------------------------------------------------- |
||
1640 | align 4 |
||
1641 | SOCKET_check: |
||
1642 | |||
2402 | hidnplayr | 1643 | DEBUGF 1,"SOCKET_check: %x\n", eax |
1514 | hidnplayr | 1644 | |
2402 | hidnplayr | 1645 | push ebx |
1646 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1647 | |
1159 | hidnplayr | 1648 | .next_socket: |
2402 | hidnplayr | 1649 | mov ebx, [ebx + SOCKET.NextPtr] |
1650 | or ebx, ebx |
||
1651 | jz .done |
||
1652 | cmp ebx, eax |
||
1653 | jnz .next_socket |
||
1159 | hidnplayr | 1654 | |
1514 | hidnplayr | 1655 | .done: |
2402 | hidnplayr | 1656 | mov eax, ebx |
1657 | test eax, eax |
||
1658 | pop ebx |
||
1514 | hidnplayr | 1659 | |
2402 | hidnplayr | 1660 | ret |
1159 | hidnplayr | 1661 | |
1514 | hidnplayr | 1662 | |
1663 | |||
1664 | ;--------------------------------------------------- |
||
1665 | ; |
||
1666 | ; SOCKET_check_owner |
||
1667 | ; |
||
1668 | ; checks if the caller application owns the socket |
||
1669 | ; |
||
1670 | ; IN: eax = socket ptr |
||
1671 | ; OUT: ZF = true/false |
||
1672 | ; |
||
1673 | ;--------------------------------------------------- |
||
1674 | align 4 |
||
1675 | SOCKET_check_owner: |
||
1676 | |||
2402 | hidnplayr | 1677 | DEBUGF 1,"SOCKET_check_owner: %x\n", eax |
1514 | hidnplayr | 1678 | |
2402 | hidnplayr | 1679 | push ebx |
1680 | mov ebx, [TASK_BASE] |
||
1681 | mov ebx, [ecx + TASKDATA.pid] |
||
1682 | cmp [eax + SOCKET.PID], ebx |
||
1683 | pop ebx |
||
1514 | hidnplayr | 1684 | |
2402 | hidnplayr | 1685 | ret |
1514 | hidnplayr | 1686 | |
1687 | |||
1688 | |||
1689 | |||
1885 | hidnplayr | 1690 | ;------------------------------------------------------ |
1514 | hidnplayr | 1691 | ; |
1692 | ; SOCKET_process_end |
||
1693 | ; |
||
1694 | ; Kernel calls this function when a certain process ends |
||
1695 | ; This function will check if the process had any open sockets |
||
1696 | ; And update them accordingly |
||
1697 | ; |
||
1698 | ; IN: eax = pid |
||
1699 | ; OUT: / |
||
1700 | ; |
||
1701 | ;------------------------------------------------------ |
||
1702 | align 4 |
||
1703 | SOCKET_process_end: |
||
1704 | |||
2402 | hidnplayr | 1705 | DEBUGF 1,"SOCKET_process_end: %x\n", eax |
1514 | hidnplayr | 1706 | |
2402 | hidnplayr | 1707 | push ebx |
1708 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1709 | |
1710 | .next_socket: |
||
1711 | |||
2402 | hidnplayr | 1712 | mov ebx, [ebx + SOCKET.NextPtr] |
1514 | hidnplayr | 1713 | .test_socket: |
2402 | hidnplayr | 1714 | test ebx, ebx |
1715 | jz .done |
||
1514 | hidnplayr | 1716 | |
2402 | hidnplayr | 1717 | cmp [ebx + SOCKET.PID], eax |
1718 | jne .next_socket |
||
1514 | hidnplayr | 1719 | |
2402 | hidnplayr | 1720 | DEBUGF 1,"closing socket %x", eax, ebx |
1514 | hidnplayr | 1721 | |
2402 | hidnplayr | 1722 | mov [ebx + SOCKET.PID], 0 |
1514 | hidnplayr | 1723 | |
2402 | hidnplayr | 1724 | cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP |
1725 | je .tcp |
||
1514 | hidnplayr | 1726 | |
2629 | hidnplayr | 1727 | ; The socket is stateless, just kill it right away! |
1514 | hidnplayr | 1728 | |
2402 | hidnplayr | 1729 | mov eax, ebx |
1730 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1731 | call SOCKET_free |
||
1732 | jmp .test_socket |
||
1514 | hidnplayr | 1733 | |
1734 | .tcp: |
||
1735 | |||
2629 | hidnplayr | 1736 | push [ebx + SOCKET.NextPtr] |
1737 | mov eax, ebx |
||
1738 | call TCP_close |
||
1739 | pop ebx |
||
1740 | jmp .test_socket |
||
1885 | hidnplayr | 1741 | |
1514 | hidnplayr | 1742 | .done: |
2402 | hidnplayr | 1743 | pop ebx |
1514 | hidnplayr | 1744 | |
2402 | hidnplayr | 1745 | ret |
1773 | hidnplayr | 1746 | |
1747 | |||
1748 | |||
1749 | |||
1885 | hidnplayr | 1750 | ;----------------------------------------------------------------- |
1751 | ; |
||
1752 | ; SOCKET_is_connecting |
||
1753 | ; |
||
1754 | ; IN: eax = socket ptr |
||
1755 | ; OUT: / |
||
1756 | ; |
||
1757 | ;----------------------------------------------------------------- |
||
1773 | hidnplayr | 1758 | |
1885 | hidnplayr | 1759 | align 4 |
1760 | SOCKET_is_connecting: |
||
1773 | hidnplayr | 1761 | |
1762 | |||
2402 | hidnplayr | 1763 | and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
1764 | or [eax + SOCKET.options], SS_ISCONNECTING |
||
1773 | hidnplayr | 1765 | |
2402 | hidnplayr | 1766 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 1767 | |
1768 | |||
1769 | |||
1773 | hidnplayr | 1770 | ;----------------------------------------------------------------- |
1771 | ; |
||
1885 | hidnplayr | 1772 | ; SOCKET_is_connected |
1773 | ; |
||
1774 | ; IN: eax = socket ptr |
||
1775 | ; OUT: / |
||
1776 | ; |
||
1777 | ;----------------------------------------------------------------- |
||
1778 | |||
1779 | align 4 |
||
1780 | SOCKET_is_connected: |
||
1781 | |||
1782 | |||
2402 | hidnplayr | 1783 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
1784 | or [eax + SOCKET.options], SS_ISCONNECTED |
||
1885 | hidnplayr | 1785 | |
2402 | hidnplayr | 1786 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 1787 | |
1788 | |||
1789 | |||
1790 | |||
1791 | ;----------------------------------------------------------------- |
||
1792 | ; |
||
1773 | hidnplayr | 1793 | ; SOCKET_is_disconnecting |
1794 | ; |
||
1795 | ; IN: eax = socket ptr |
||
1796 | ; OUT: / |
||
1797 | ; |
||
1798 | ;----------------------------------------------------------------- |
||
1799 | |||
1800 | align 4 |
||
1801 | SOCKET_is_disconnecting: |
||
1802 | |||
2402 | hidnplayr | 1803 | and [eax + SOCKET.options], not (SS_ISCONNECTING) |
1804 | or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 1805 | |
2402 | hidnplayr | 1806 | jmp SOCKET_notify_owner |
1773 | hidnplayr | 1807 | |
1808 | |||
1809 | |||
1810 | ;----------------------------------------------------------------- |
||
1811 | ; |
||
1812 | ; SOCKET_is_disconnected |
||
1813 | ; |
||
1814 | ; IN: eax = socket ptr |
||
1815 | ; OUT: / |
||
1816 | ; |
||
1817 | ;----------------------------------------------------------------- |
||
1818 | |||
1819 | align 4 |
||
1820 | SOCKET_is_disconnected: |
||
1821 | |||
2402 | hidnplayr | 1822 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
1823 | or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 1824 | |
2402 | hidnplayr | 1825 | jmp SOCKET_notify_owner |
1774 | hidnplayr | 1826 | |
1827 | |||
1828 | ;----------------------------------------------------------------- |
||
1829 | ; |
||
1830 | ; SOCKET_cant_recv_more |
||
1831 | ; |
||
1832 | ; IN: eax = socket ptr |
||
1833 | ; OUT: / |
||
1834 | ; |
||
1835 | ;----------------------------------------------------------------- |
||
1836 | |||
1837 | align 4 |
||
1838 | SOCKET_cant_recv_more: |
||
1839 | |||
2402 | hidnplayr | 1840 | or [eax + SOCKET.options], SS_CANTRCVMORE |
1885 | hidnplayr | 1841 | |
2402 | hidnplayr | 1842 | ret |
1831 | hidnplayr | 1843 | |
1844 | |||
1845 | |||
1846 | ;----------------------------------------------------------------- |
||
1847 | ; |
||
1885 | hidnplayr | 1848 | ; SOCKET_cant_send_more |
1831 | hidnplayr | 1849 | ; |
1850 | ; IN: eax = socket ptr |
||
1851 | ; OUT: / |
||
1852 | ; |
||
1853 | ;----------------------------------------------------------------- |
||
1854 | |||
1855 | align 4 |
||
1885 | hidnplayr | 1856 | SOCKET_cant_send_more: |
1831 | hidnplayr | 1857 | |
2402 | hidnplayr | 1858 | or [eax + SOCKET.options], SS_CANTSENDMORE |
1831 | hidnplayr | 1859 | |
2402 | hidnplayr | 1860 | ret |