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