Rev 3229 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3251 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
3143 | hidnplayr | 6 | ;; Part of the TCP/IP network stack for KolibriOS ;; |
2888 | hidnplayr | 7 | ;; ;; |
8 | ;; Written by hidnplayr@kolibrios.org, ;; |
||
1529 | hidnplayr | 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 ;; |
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15 | ;; ;; |
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1159 | hidnplayr | 16 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
17 | |||
1206 | hidnplayr | 18 | $Revision: 3251 $ |
1159 | hidnplayr | 19 | |
1773 | hidnplayr | 20 | |
2402 | hidnplayr | 21 | struct SOCKET |
1249 | hidnplayr | 22 | |
2402 | hidnplayr | 23 | NextPtr dd ? ; pointer to next socket in list |
24 | PrevPtr dd ? ; pointer to previous socket in list |
||
25 | Number dd ? ; socket number |
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1249 | hidnplayr | 26 | |
2402 | hidnplayr | 27 | mutex MUTEX |
1249 | hidnplayr | 28 | |
2402 | hidnplayr | 29 | PID dd ? ; application process id |
3251 | hidnplayr | 30 | Domain dd ? ; INET/LOCAL/.. |
2402 | hidnplayr | 31 | Type dd ? ; RAW/STREAM/DGRAP |
32 | Protocol dd ? ; ICMP/IPv4/ARP/TCP/UDP |
||
33 | errorcode dd ? |
||
3251 | hidnplayr | 34 | device dd ? ; driver pointer, socket pointer if it's an LOCAL socket |
1249 | hidnplayr | 35 | |
2402 | hidnplayr | 36 | options dd ? |
37 | state dd ? |
||
3251 | hidnplayr | 38 | backlog dw ? ; how many incoming connections that can be queued |
1249 | hidnplayr | 39 | |
2402 | hidnplayr | 40 | snd_proc dd ? |
41 | rcv_proc dd ? |
||
1536 | hidnplayr | 42 | |
2305 | hidnplayr | 43 | ends |
1249 | hidnplayr | 44 | |
2402 | hidnplayr | 45 | struct IP_SOCKET SOCKET |
1254 | hidnplayr | 46 | |
2995 | hidnplayr | 47 | LocalIP rd 4 ; network byte order |
48 | RemoteIP rd 4 ; network byte order |
||
1318 | hidnplayr | 49 | |
2305 | hidnplayr | 50 | ends |
1159 | hidnplayr | 51 | |
2402 | hidnplayr | 52 | struct TCP_SOCKET IP_SOCKET |
1249 | hidnplayr | 53 | |
2995 | hidnplayr | 54 | LocalPort dw ? ; network byte order |
55 | RemotePort dw ? ; network byte order |
||
1514 | hidnplayr | 56 | |
2402 | hidnplayr | 57 | t_state dd ? ; TCB state |
2955 | hidnplayr | 58 | t_rxtshift db ? |
59 | rb 3 ; align |
||
2402 | hidnplayr | 60 | t_rxtcur dd ? |
61 | t_dupacks dd ? |
||
62 | t_maxseg dd ? |
||
63 | t_force dd ? |
||
64 | t_flags dd ? |
||
1514 | hidnplayr | 65 | |
66 | ;--------------- |
||
67 | ; RFC783 page 21 |
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68 | |||
69 | ; send sequence |
||
2402 | hidnplayr | 70 | SND_UNA dd ? ; sequence number of unack'ed sent Packets |
71 | SND_NXT dd ? ; next send sequence number to use |
||
2890 | hidnplayr | 72 | SND_UP dd ? ; urgent pointer |
2402 | hidnplayr | 73 | SND_WL1 dd ? ; window minus one |
74 | SND_WL2 dd ? ; |
||
75 | ISS dd ? ; initial send sequence number |
||
76 | SND_WND dd ? ; send window |
||
1514 | hidnplayr | 77 | |
78 | ; receive sequence |
||
2957 | hidnplayr | 79 | RCV_WND dd ? ; receive window |
2402 | hidnplayr | 80 | RCV_NXT dd ? ; next receive sequence number to use |
2890 | hidnplayr | 81 | RCV_UP dd ? ; urgent pointer |
2402 | hidnplayr | 82 | IRS dd ? ; initial receive sequence number |
1514 | hidnplayr | 83 | |
84 | ;--------------------- |
||
85 | ; Additional variables |
||
86 | |||
87 | ; receive variables |
||
2402 | hidnplayr | 88 | RCV_ADV dd ? |
1514 | hidnplayr | 89 | |
90 | ; retransmit variables |
||
2402 | hidnplayr | 91 | SND_MAX dd ? |
1514 | hidnplayr | 92 | |
93 | ; congestion control |
||
2402 | hidnplayr | 94 | SND_CWND dd ? |
95 | SND_SSTHRESH dd ? |
||
1514 | hidnplayr | 96 | |
97 | ;---------------------- |
||
98 | ; Transmit timing stuff |
||
2402 | hidnplayr | 99 | t_idle dd ? |
100 | t_rtt dd ? |
||
101 | t_rtseq dd ? |
||
102 | t_srtt dd ? |
||
103 | t_rttvar dd ? |
||
104 | t_rttmin dd ? |
||
105 | max_sndwnd dd ? |
||
1514 | hidnplayr | 106 | |
107 | ;----------------- |
||
108 | ; Out-of-band data |
||
2402 | hidnplayr | 109 | t_oobflags dd ? |
110 | t_iobc dd ? |
||
111 | t_softerror dd ? |
||
1514 | hidnplayr | 112 | |
113 | |||
114 | ;--------- |
||
2924 | hidnplayr | 115 | ; RFC 1323 ; the order of next 4 elements may not change |
1514 | hidnplayr | 116 | |
2402 | hidnplayr | 117 | SND_SCALE db ? |
118 | RCV_SCALE db ? |
||
119 | requested_s_scale db ? |
||
120 | request_r_scale db ? |
||
1514 | hidnplayr | 121 | |
2924 | hidnplayr | 122 | ts_recent dd ? ; a copy of the most-recent valid timestamp from the other end |
2402 | hidnplayr | 123 | ts_recent_age dd ? |
124 | last_ack_sent dd ? |
||
1519 | hidnplayr | 125 | |
2310 | hidnplayr | 126 | |
1519 | hidnplayr | 127 | ;------- |
128 | ; Timers |
||
2955 | hidnplayr | 129 | timer_retransmission dd ? ; rexmt |
130 | timer_persist dd ? |
||
131 | timer_keepalive dd ? ; keepalive/syn timeout |
||
132 | timer_timed_wait dd ? ; also used as 2msl timer |
||
1519 | hidnplayr | 133 | |
2890 | hidnplayr | 134 | ; extra |
135 | |||
2924 | hidnplayr | 136 | ts_ecr dd ? ; timestamp echo reply |
2937 | hidnplayr | 137 | ts_val dd ? |
138 | temp_bits db ? |
||
2890 | hidnplayr | 139 | |
2305 | hidnplayr | 140 | ends |
1249 | hidnplayr | 141 | |
2402 | hidnplayr | 142 | struct UDP_SOCKET IP_SOCKET |
1249 | hidnplayr | 143 | |
2995 | hidnplayr | 144 | LocalPort dw ? ; network byte order |
145 | RemotePort dw ? ; network byte order |
||
2402 | hidnplayr | 146 | firstpacket db ? |
1249 | hidnplayr | 147 | |
2305 | hidnplayr | 148 | ends |
1249 | hidnplayr | 149 | |
150 | |||
2402 | hidnplayr | 151 | struct ICMP_SOCKET IP_SOCKET |
1249 | hidnplayr | 152 | |
2402 | hidnplayr | 153 | Identifier dw ? |
1514 | hidnplayr | 154 | |
2305 | hidnplayr | 155 | ends |
1514 | hidnplayr | 156 | |
157 | |||
2402 | hidnplayr | 158 | struct RING_BUFFER |
2311 | hidnplayr | 159 | |
2402 | hidnplayr | 160 | start_ptr dd ? ; Pointer to start of buffer |
161 | end_ptr dd ? ; pointer to end of buffer |
||
162 | read_ptr dd ? ; Read pointer |
||
163 | write_ptr dd ? ; Write pointer |
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164 | size dd ? ; Number of bytes buffered |
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2311 | hidnplayr | 165 | |
2305 | hidnplayr | 166 | ends |
1514 | hidnplayr | 167 | |
2402 | hidnplayr | 168 | struct STREAM_SOCKET TCP_SOCKET |
1529 | hidnplayr | 169 | |
2402 | hidnplayr | 170 | rcv RING_BUFFER |
171 | snd RING_BUFFER |
||
1529 | hidnplayr | 172 | |
2305 | hidnplayr | 173 | ends |
1529 | hidnplayr | 174 | |
2402 | hidnplayr | 175 | struct socket_queue_entry |
1529 | hidnplayr | 176 | |
2402 | hidnplayr | 177 | data_ptr dd ? |
178 | buf_ptr dd ? |
||
179 | data_size dd ? |
||
1529 | hidnplayr | 180 | |
1274 | hidnplayr | 181 | ends |
182 | |||
1514 | hidnplayr | 183 | |
2614 | hidnplayr | 184 | SOCKETBUFFSIZE = 4096 ; in bytes |
1514 | hidnplayr | 185 | |
3251 | hidnplayr | 186 | SOCKET_QUEUE_SIZE = 10 ; maximum number of incoming packets queued for 1 socket |
1514 | hidnplayr | 187 | ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start |
2614 | hidnplayr | 188 | SOCKET_QUEUE_LOCATION = (SOCKETBUFFSIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue) |
1249 | hidnplayr | 189 | |
1159 | hidnplayr | 190 | uglobal |
2402 | hidnplayr | 191 | net_sockets rd 4 |
192 | last_socket_num dd ? |
||
193 | last_UDP_port dw ? ; These values give the number of the last used ephemeral port |
||
194 | last_TCP_port dw ? ; |
||
1159 | hidnplayr | 195 | endg |
196 | |||
197 | |||
1257 | hidnplayr | 198 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 199 | ; |
200 | ; SOCKET_init |
||
201 | ; |
||
1257 | hidnplayr | 202 | ;----------------------------------------------------------------- |
2402 | hidnplayr | 203 | macro SOCKET_init { |
1159 | hidnplayr | 204 | |
2402 | hidnplayr | 205 | xor eax, eax |
206 | mov edi, net_sockets |
||
207 | mov ecx, 5 |
||
208 | rep stosd |
||
1159 | hidnplayr | 209 | |
1529 | hidnplayr | 210 | @@: |
2402 | hidnplayr | 211 | pseudo_random eax |
212 | cmp ax, MIN_EPHEMERAL_PORT |
||
213 | jb @r |
||
214 | cmp ax, MAX_EPHEMERAL_PORT |
||
215 | ja @r |
||
2995 | hidnplayr | 216 | xchg al, ah |
2402 | hidnplayr | 217 | mov [last_UDP_port], ax |
1529 | hidnplayr | 218 | |
219 | @@: |
||
2402 | hidnplayr | 220 | pseudo_random eax |
221 | cmp ax, MIN_EPHEMERAL_PORT |
||
222 | jb @r |
||
223 | cmp ax, MAX_EPHEMERAL_PORT |
||
224 | ja @r |
||
2995 | hidnplayr | 225 | xchg al, ah |
2402 | hidnplayr | 226 | mov [last_TCP_port], ax |
1529 | hidnplayr | 227 | |
228 | } |
||
229 | |||
230 | |||
1257 | hidnplayr | 231 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 232 | ; |
2994 | hidnplayr | 233 | ; SOCKET_block |
234 | ; |
||
235 | ;----------------------------------------------------------------- |
||
236 | macro SOCKET_block socket, loop, done { |
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237 | |||
238 | test [socket + SOCKET.options], SO_BLOCK ; Is this a blocking socket? |
||
239 | jz done ; No, return immediately |
||
240 | |||
3143 | hidnplayr | 241 | pusha |
242 | mov eax, EVENT_NETWORK |
||
243 | mov ebx, 1337 ; UID: ???? |
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244 | call wait_event |
||
245 | popa |
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2994 | hidnplayr | 246 | |
247 | jmp loop |
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248 | |||
249 | } |
||
250 | |||
251 | |||
252 | ;----------------------------------------------------------------- |
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253 | ; |
||
1159 | hidnplayr | 254 | ; Socket API (function 74) |
255 | ; |
||
1257 | hidnplayr | 256 | ;----------------------------------------------------------------- |
2614 | hidnplayr | 257 | align 4 |
258 | sys_socket: |
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259 | |||
260 | cmp ebx, 255 |
||
261 | jz SOCKET_debug |
||
262 | |||
263 | cmp ebx, .number |
||
264 | ja s_error |
||
265 | jmp dword [.table + 4*ebx] |
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266 | |||
267 | .table: |
||
2402 | hidnplayr | 268 | dd SOCKET_open ; 0 |
269 | dd SOCKET_close ; 1 |
||
270 | dd SOCKET_bind ; 2 |
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271 | dd SOCKET_listen ; 3 |
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272 | dd SOCKET_connect ; 4 |
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273 | dd SOCKET_accept ; 5 |
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274 | dd SOCKET_send ; 6 |
||
275 | dd SOCKET_receive ; 7 |
||
276 | dd SOCKET_set_opt ; 8 |
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277 | dd SOCKET_get_opt ; 9 |
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3228 | hidnplayr | 278 | dd SOCKET_pair ; 10 |
2614 | hidnplayr | 279 | .number = ($ - .table) / 4 - 1 |
2301 | hidnplayr | 280 | |
1529 | hidnplayr | 281 | s_error: |
3251 | hidnplayr | 282 | DEBUGF 2,"SOCKET: error\n" |
2402 | hidnplayr | 283 | mov dword [esp+32], -1 |
1529 | hidnplayr | 284 | |
2402 | hidnplayr | 285 | ret |
1529 | hidnplayr | 286 | |
1257 | hidnplayr | 287 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 288 | ; |
289 | ; SOCKET_open |
||
290 | ; |
||
291 | ; IN: domain in ecx |
||
292 | ; type in edx |
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1196 | hidnplayr | 293 | ; protocol in esi |
1159 | hidnplayr | 294 | ; OUT: eax is socket num, -1 on error |
295 | ; |
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1257 | hidnplayr | 296 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 297 | align 4 |
1514 | hidnplayr | 298 | SOCKET_open: |
1159 | hidnplayr | 299 | |
3251 | hidnplayr | 300 | DEBUGF 2,"SOCKET_open: domain=%u type=%u protocol=%x ", ecx, edx, esi |
1159 | hidnplayr | 301 | |
2402 | hidnplayr | 302 | push ecx edx esi |
303 | call SOCKET_alloc |
||
304 | pop esi edx ecx |
||
305 | jz s_error |
||
1159 | hidnplayr | 306 | |
2402 | hidnplayr | 307 | mov [esp+32], edi ; return socketnumber |
3251 | hidnplayr | 308 | DEBUGF 2,"socknum=%u\n", edi |
1542 | hidnplayr | 309 | |
2402 | hidnplayr | 310 | mov [eax + SOCKET.Domain], ecx |
311 | mov [eax + SOCKET.Type], edx |
||
312 | mov [eax + SOCKET.Protocol], esi |
||
1159 | hidnplayr | 313 | |
2402 | hidnplayr | 314 | cmp ecx, AF_INET4 |
315 | jne .no_inet4 |
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1529 | hidnplayr | 316 | |
2402 | hidnplayr | 317 | cmp edx, SOCK_DGRAM |
318 | je .udp |
||
1536 | hidnplayr | 319 | |
2402 | hidnplayr | 320 | cmp edx, SOCK_STREAM |
321 | je .tcp |
||
1529 | hidnplayr | 322 | |
2402 | hidnplayr | 323 | cmp edx, SOCK_RAW |
324 | je .raw |
||
1541 | hidnplayr | 325 | |
1536 | hidnplayr | 326 | .no_inet4: |
2931 | hidnplayr | 327 | cmp ecx, AF_PPP |
328 | jne .no_ppp |
||
329 | |||
330 | cmp esi, PPP_PROTO_ETHERNET |
||
331 | je .pppoe |
||
332 | |||
333 | .no_ppp: |
||
3251 | hidnplayr | 334 | DEBUGF 2,"Unknown socket family/protocol\n" |
2402 | hidnplayr | 335 | ret |
1536 | hidnplayr | 336 | |
1542 | hidnplayr | 337 | align 4 |
338 | .raw: |
||
2402 | hidnplayr | 339 | test esi, esi ; IP_PROTO_IP |
340 | jz .ip |
||
1529 | hidnplayr | 341 | |
2402 | hidnplayr | 342 | cmp esi, IP_PROTO_ICMP |
343 | je .icmp |
||
1529 | hidnplayr | 344 | |
2402 | hidnplayr | 345 | cmp esi, IP_PROTO_UDP |
346 | je .udp |
||
1533 | hidnplayr | 347 | |
2402 | hidnplayr | 348 | cmp esi, IP_PROTO_TCP |
349 | je .tcp |
||
1536 | hidnplayr | 350 | |
2402 | hidnplayr | 351 | ret |
1159 | hidnplayr | 352 | |
1542 | hidnplayr | 353 | align 4 |
1536 | hidnplayr | 354 | .udp: |
2402 | hidnplayr | 355 | mov [eax + SOCKET.Protocol], IP_PROTO_UDP |
356 | mov [eax + SOCKET.snd_proc], SOCKET_send_udp |
||
357 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
358 | ret |
||
1529 | hidnplayr | 359 | |
1542 | hidnplayr | 360 | align 4 |
361 | .tcp: |
||
2402 | hidnplayr | 362 | mov [eax + SOCKET.Protocol], IP_PROTO_TCP |
363 | mov [eax + SOCKET.snd_proc], SOCKET_send_tcp |
||
3228 | hidnplayr | 364 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
1838 | hidnplayr | 365 | |
2612 | hidnplayr | 366 | TCP_init_socket eax |
2402 | hidnplayr | 367 | ret |
1529 | hidnplayr | 368 | |
369 | |||
1543 | hidnplayr | 370 | align 4 |
371 | .ip: |
||
2402 | hidnplayr | 372 | mov [eax + SOCKET.snd_proc], SOCKET_send_ip |
373 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
374 | ret |
||
1541 | hidnplayr | 375 | |
1542 | hidnplayr | 376 | |
377 | align 4 |
||
1541 | hidnplayr | 378 | .icmp: |
2402 | hidnplayr | 379 | mov [eax + SOCKET.snd_proc], SOCKET_send_icmp |
380 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
381 | ret |
||
1541 | hidnplayr | 382 | |
2931 | hidnplayr | 383 | align 4 |
384 | .pppoe: |
||
385 | push eax |
||
386 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
387 | pop eax |
||
1541 | hidnplayr | 388 | |
2931 | hidnplayr | 389 | mov [eax + SOCKET.snd_proc], SOCKET_send_pppoe |
390 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_dgram |
||
391 | ret |
||
1541 | hidnplayr | 392 | |
2931 | hidnplayr | 393 | |
1257 | hidnplayr | 394 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 395 | ; |
396 | ; SOCKET_bind |
||
397 | ; |
||
398 | ; IN: socket number in ecx |
||
399 | ; pointer to sockaddr struct in edx |
||
400 | ; length of that struct in esi |
||
401 | ; OUT: 0 on success |
||
402 | ; |
||
1257 | hidnplayr | 403 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 404 | align 4 |
1514 | hidnplayr | 405 | SOCKET_bind: |
1159 | hidnplayr | 406 | |
3251 | hidnplayr | 407 | DEBUGF 2,"SOCKET_bind: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
1159 | hidnplayr | 408 | |
2402 | hidnplayr | 409 | call SOCKET_num_to_ptr |
410 | jz s_error |
||
1159 | hidnplayr | 411 | |
2402 | hidnplayr | 412 | cmp esi, 2 |
413 | jb s_error |
||
1159 | hidnplayr | 414 | |
2402 | hidnplayr | 415 | cmp word [edx], AF_INET4 |
416 | je .af_inet4 |
||
1159 | hidnplayr | 417 | |
3251 | hidnplayr | 418 | cmp word [edx], AF_LOCAL |
419 | je .af_local |
||
1249 | hidnplayr | 420 | |
2402 | hidnplayr | 421 | jmp s_error |
1249 | hidnplayr | 422 | |
3251 | hidnplayr | 423 | .af_local: |
2402 | hidnplayr | 424 | ; TODO: write code here |
1249 | hidnplayr | 425 | |
2402 | hidnplayr | 426 | mov dword [esp+32], 0 |
427 | ret |
||
1249 | hidnplayr | 428 | |
1159 | hidnplayr | 429 | .af_inet4: |
430 | |||
2402 | hidnplayr | 431 | cmp esi, 6 |
432 | jb s_error |
||
1159 | hidnplayr | 433 | |
2622 | hidnplayr | 434 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
435 | je .udp |
||
1159 | hidnplayr | 436 | |
2622 | hidnplayr | 437 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
438 | je .tcp |
||
1159 | hidnplayr | 439 | |
2622 | hidnplayr | 440 | jmp s_error |
441 | |||
442 | .tcp: |
||
443 | .udp: |
||
444 | |||
445 | mov ebx, [edx + 4] ; First, fill in the IP |
||
446 | test ebx, ebx ; If IP is 0, use default |
||
447 | jnz @f |
||
448 | mov ebx, [NET_DEFAULT] |
||
449 | mov ebx, [IP_LIST + 4*ebx] |
||
450 | @@: |
||
451 | mov [eax + IP_SOCKET.LocalIP], ebx |
||
452 | |||
2995 | hidnplayr | 453 | mov bx, [edx + 2] ; Now fill in the local port if it's still available |
2622 | hidnplayr | 454 | call SOCKET_check_port |
455 | jz s_error ; ZF is set by socket_check_port, on error |
||
456 | |||
2891 | hidnplayr | 457 | DEBUGF 1,"SOCKET_bind: local ip=%u.%u.%u.%u\n",\ |
2402 | hidnplayr | 458 | [eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\ |
459 | [eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1 |
||
1159 | hidnplayr | 460 | |
2402 | hidnplayr | 461 | mov dword [esp+32], 0 |
462 | ret |
||
1159 | hidnplayr | 463 | |
464 | |||
465 | |||
466 | |||
1257 | hidnplayr | 467 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 468 | ; |
469 | ; SOCKET_connect |
||
470 | ; |
||
471 | ; IN: socket number in ecx |
||
472 | ; pointer to sockaddr struct in edx |
||
473 | ; length of that struct in esi |
||
474 | ; OUT: 0 on success |
||
475 | ; |
||
1257 | hidnplayr | 476 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 477 | align 4 |
1514 | hidnplayr | 478 | SOCKET_connect: |
1159 | hidnplayr | 479 | |
3251 | hidnplayr | 480 | DEBUGF 2,"SOCKET_connect: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
1159 | hidnplayr | 481 | |
2402 | hidnplayr | 482 | call SOCKET_num_to_ptr |
483 | jz s_error |
||
1159 | hidnplayr | 484 | |
2402 | hidnplayr | 485 | cmp esi, 8 |
486 | jb s_error |
||
1159 | hidnplayr | 487 | |
2402 | hidnplayr | 488 | cmp word [edx], AF_INET4 |
489 | je .af_inet4 |
||
1159 | hidnplayr | 490 | |
2402 | hidnplayr | 491 | jmp s_error |
1159 | hidnplayr | 492 | |
493 | .af_inet4: |
||
2402 | hidnplayr | 494 | cmp [eax + IP_SOCKET.LocalIP], 0 |
495 | jne @f |
||
496 | push [IP_LIST] |
||
497 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 498 | @@: |
1159 | hidnplayr | 499 | |
2402 | hidnplayr | 500 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
501 | je .udp |
||
1159 | hidnplayr | 502 | |
2402 | hidnplayr | 503 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
504 | je .tcp |
||
1159 | hidnplayr | 505 | |
2402 | hidnplayr | 506 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
507 | je .ip |
||
1541 | hidnplayr | 508 | |
2402 | hidnplayr | 509 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
510 | je .ip |
||
1542 | hidnplayr | 511 | |
2402 | hidnplayr | 512 | jmp s_error |
1159 | hidnplayr | 513 | |
1542 | hidnplayr | 514 | align 4 |
1254 | hidnplayr | 515 | .udp: |
2402 | hidnplayr | 516 | pusha |
517 | lea ecx, [eax + SOCKET.mutex] |
||
518 | call mutex_lock |
||
519 | popa |
||
1543 | hidnplayr | 520 | |
2402 | hidnplayr | 521 | pushw [edx + 2] |
522 | pop [eax + UDP_SOCKET.RemotePort] |
||
1543 | hidnplayr | 523 | |
2402 | hidnplayr | 524 | pushd [edx + 4] |
525 | pop [eax + IP_SOCKET.RemoteIP] |
||
1543 | hidnplayr | 526 | |
2402 | hidnplayr | 527 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
528 | jne @f |
||
529 | call SOCKET_find_port |
||
1543 | hidnplayr | 530 | @@: |
531 | |||
2402 | hidnplayr | 532 | mov [eax + UDP_SOCKET.firstpacket], 0 |
1159 | hidnplayr | 533 | |
2402 | hidnplayr | 534 | push eax |
535 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
536 | pop eax |
||
1159 | hidnplayr | 537 | |
2402 | hidnplayr | 538 | lea ecx, [eax + SOCKET.mutex] |
539 | call mutex_unlock |
||
1159 | hidnplayr | 540 | |
2402 | hidnplayr | 541 | mov dword [esp+32], 0 |
542 | ret |
||
543 | |||
1542 | hidnplayr | 544 | align 4 |
1254 | hidnplayr | 545 | .tcp: |
2402 | hidnplayr | 546 | pusha |
547 | lea ecx, [eax + SOCKET.mutex] |
||
548 | call mutex_lock |
||
549 | popa |
||
1159 | hidnplayr | 550 | |
2402 | hidnplayr | 551 | pushw [edx + 2] |
552 | pop [eax + TCP_SOCKET.RemotePort] |
||
1159 | hidnplayr | 553 | |
2402 | hidnplayr | 554 | pushd [edx + 4] |
555 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 556 | |
2402 | hidnplayr | 557 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
558 | jne @f |
||
559 | call SOCKET_find_port |
||
1543 | hidnplayr | 560 | @@: |
1159 | hidnplayr | 561 | |
2402 | hidnplayr | 562 | mov [eax + TCP_SOCKET.timer_persist], 0 |
563 | mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT |
||
2612 | hidnplayr | 564 | |
2402 | hidnplayr | 565 | push [TCP_sequence_num] |
566 | add [TCP_sequence_num], 6400 |
||
567 | pop [eax + TCP_SOCKET.ISS] |
||
568 | mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init |
||
1519 | hidnplayr | 569 | |
2612 | hidnplayr | 570 | |
2402 | hidnplayr | 571 | TCP_sendseqinit eax |
1529 | hidnplayr | 572 | |
1543 | hidnplayr | 573 | ; mov [ebx + TCP_SOCKET.timer_retransmission], ;; todo: create macro to set retransmission timer |
1533 | hidnplayr | 574 | |
2402 | hidnplayr | 575 | mov ebx, eax |
1159 | hidnplayr | 576 | |
2402 | hidnplayr | 577 | lea eax, [ebx + STREAM_SOCKET.snd] |
578 | call SOCKET_ring_create |
||
1543 | hidnplayr | 579 | |
2402 | hidnplayr | 580 | lea eax, [ebx + STREAM_SOCKET.rcv] |
581 | call SOCKET_ring_create |
||
1543 | hidnplayr | 582 | |
2402 | hidnplayr | 583 | pusha |
2939 | hidnplayr | 584 | lea ecx, [ebx + SOCKET.mutex] |
2402 | hidnplayr | 585 | call mutex_unlock |
586 | popa |
||
1733 | hidnplayr | 587 | |
2402 | hidnplayr | 588 | mov eax, ebx |
589 | call TCP_output |
||
1733 | hidnplayr | 590 | |
2994 | hidnplayr | 591 | ;;; TODO: wait for successfull connection if blocking socket |
592 | |||
2402 | hidnplayr | 593 | mov dword [esp+32], 0 |
594 | ret |
||
1159 | hidnplayr | 595 | |
1542 | hidnplayr | 596 | align 4 |
597 | .ip: |
||
2402 | hidnplayr | 598 | pusha |
599 | lea ecx, [eax + SOCKET.mutex] |
||
600 | call mutex_lock |
||
601 | popa |
||
1543 | hidnplayr | 602 | |
2402 | hidnplayr | 603 | pushd [edx + 4] |
604 | pop [eax + IP_SOCKET.RemoteIP] |
||
1159 | hidnplayr | 605 | |
2402 | hidnplayr | 606 | push eax |
607 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up data receiving queue |
||
608 | pop eax |
||
1543 | hidnplayr | 609 | |
2402 | hidnplayr | 610 | lea ecx, [eax + SOCKET.mutex] |
611 | call mutex_unlock |
||
1541 | hidnplayr | 612 | |
2402 | hidnplayr | 613 | mov dword [esp+32], 0 |
614 | ret |
||
1541 | hidnplayr | 615 | |
2402 | hidnplayr | 616 | |
1257 | hidnplayr | 617 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 618 | ; |
619 | ; SOCKET_listen |
||
620 | ; |
||
621 | ; IN: socket number in ecx |
||
622 | ; backlog in edx |
||
623 | ; OUT: eax is socket num, -1 on error |
||
624 | ; |
||
1257 | hidnplayr | 625 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 626 | align 4 |
1514 | hidnplayr | 627 | SOCKET_listen: |
1159 | hidnplayr | 628 | |
3251 | hidnplayr | 629 | DEBUGF 2,"SOCKET_listen: socknum=%u backlog=%u\n", ecx, edx |
1159 | hidnplayr | 630 | |
2402 | hidnplayr | 631 | call SOCKET_num_to_ptr |
632 | jz s_error |
||
1159 | hidnplayr | 633 | |
2402 | hidnplayr | 634 | cmp [eax + SOCKET.Domain], AF_INET4 |
635 | jne s_error |
||
1254 | hidnplayr | 636 | |
2402 | hidnplayr | 637 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
638 | jne s_error |
||
1254 | hidnplayr | 639 | |
2402 | hidnplayr | 640 | cmp [eax + TCP_SOCKET.LocalPort], 0 |
641 | je s_error |
||
1514 | hidnplayr | 642 | |
2402 | hidnplayr | 643 | cmp [eax + IP_SOCKET.LocalIP], 0 |
644 | jne @f |
||
645 | push [IP_LIST] |
||
646 | pop [eax + IP_SOCKET.LocalIP] |
||
1543 | hidnplayr | 647 | @@: |
648 | |||
2402 | hidnplayr | 649 | cmp edx, MAX_backlog |
650 | jbe @f |
||
651 | mov edx, MAX_backlog |
||
1543 | hidnplayr | 652 | @@: |
1159 | hidnplayr | 653 | |
2402 | hidnplayr | 654 | mov [eax + SOCKET.backlog], dx |
655 | or [eax + SOCKET.options], SO_ACCEPTCON |
||
656 | mov [eax + TCP_SOCKET.t_state], TCPS_LISTEN |
||
2880 | hidnplayr | 657 | mov [eax + TCP_SOCKET.timer_keepalive], 0 ; disable keepalive timer |
1159 | hidnplayr | 658 | |
2402 | hidnplayr | 659 | push eax |
660 | init_queue (eax + SOCKET_QUEUE_LOCATION) ; Set up sockets queue |
||
661 | pop eax |
||
1543 | hidnplayr | 662 | |
2402 | hidnplayr | 663 | mov dword [esp+32], 0 |
1514 | hidnplayr | 664 | |
2402 | hidnplayr | 665 | ret |
1159 | hidnplayr | 666 | |
667 | |||
1257 | hidnplayr | 668 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 669 | ; |
670 | ; SOCKET_accept |
||
671 | ; |
||
672 | ; IN: socket number in ecx |
||
673 | ; addr in edx |
||
674 | ; addrlen in esi |
||
675 | ; OUT: eax is socket num, -1 on error |
||
676 | ; |
||
1257 | hidnplayr | 677 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 678 | align 4 |
1514 | hidnplayr | 679 | SOCKET_accept: |
1159 | hidnplayr | 680 | |
3251 | hidnplayr | 681 | DEBUGF 2,"SOCKET_accept: socknum=%u sockaddr=%x length=%u\n", ecx, edx, esi |
1159 | hidnplayr | 682 | |
2402 | hidnplayr | 683 | call SOCKET_num_to_ptr |
684 | jz s_error |
||
1159 | hidnplayr | 685 | |
2402 | hidnplayr | 686 | test [eax + SOCKET.options], SO_ACCEPTCON |
687 | jz s_error |
||
1543 | hidnplayr | 688 | |
2402 | hidnplayr | 689 | cmp [eax + SOCKET.Domain], AF_INET4 |
690 | jne s_error |
||
1249 | hidnplayr | 691 | |
2402 | hidnplayr | 692 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
693 | jne s_error |
||
1249 | hidnplayr | 694 | |
2994 | hidnplayr | 695 | .loop: |
696 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .block |
||
697 | |||
698 | ; Ok, we got a socket ptr |
||
2572 | hidnplayr | 699 | mov eax, [esi] |
1249 | hidnplayr | 700 | |
2572 | hidnplayr | 701 | ; Change PID to that of the current process |
702 | mov ebx, [TASK_BASE] |
||
703 | mov ebx, [ebx + TASKDATA.pid] |
||
704 | mov [eax + SOCKET.PID], ebx |
||
705 | |||
2994 | hidnplayr | 706 | ; Convert it to a socket number |
2402 | hidnplayr | 707 | call SOCKET_ptr_to_num |
708 | jz s_error |
||
2994 | hidnplayr | 709 | ; and return it to caller |
2402 | hidnplayr | 710 | mov [esp+32], eax |
711 | ret |
||
1514 | hidnplayr | 712 | |
2994 | hidnplayr | 713 | .block: |
714 | SOCKET_block eax, .loop, s_error |
||
1159 | hidnplayr | 715 | |
1257 | hidnplayr | 716 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 717 | ; |
718 | ; SOCKET_close |
||
719 | ; |
||
720 | ; IN: socket number in ecx |
||
721 | ; OUT: eax is socket num, -1 on error |
||
722 | ; |
||
1257 | hidnplayr | 723 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 724 | align 4 |
1514 | hidnplayr | 725 | SOCKET_close: |
1159 | hidnplayr | 726 | |
3251 | hidnplayr | 727 | DEBUGF 2,"SOCKET_close: socknum=%u\n", ecx |
1159 | hidnplayr | 728 | |
2402 | hidnplayr | 729 | call SOCKET_num_to_ptr |
730 | jz s_error |
||
1159 | hidnplayr | 731 | |
2402 | hidnplayr | 732 | cmp [eax + SOCKET.Domain], AF_INET4 |
733 | jne s_error |
||
1159 | hidnplayr | 734 | |
2402 | hidnplayr | 735 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
736 | je .free |
||
1159 | hidnplayr | 737 | |
2402 | hidnplayr | 738 | cmp [eax + SOCKET.Protocol], IP_PROTO_ICMP |
739 | je .free |
||
1159 | hidnplayr | 740 | |
2402 | hidnplayr | 741 | cmp [eax + SOCKET.Protocol], IP_PROTO_IP |
742 | je .free |
||
1542 | hidnplayr | 743 | |
2402 | hidnplayr | 744 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
745 | je .tcp |
||
1159 | hidnplayr | 746 | |
2402 | hidnplayr | 747 | jmp s_error |
1159 | hidnplayr | 748 | |
749 | .tcp: |
||
2402 | hidnplayr | 750 | cmp [eax + TCP_SOCKET.t_state], TCPS_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED |
751 | jb .free |
||
1318 | hidnplayr | 752 | |
2890 | hidnplayr | 753 | call TCP_usrclosed |
2891 | hidnplayr | 754 | call TCP_output ;;;; Fixme: is this nescessary?? |
2994 | hidnplayr | 755 | |
756 | ;;; TODO: wait for successfull termination if blocking socket |
||
2402 | hidnplayr | 757 | mov dword [esp+32], 0 |
1159 | hidnplayr | 758 | |
2402 | hidnplayr | 759 | ret |
1159 | hidnplayr | 760 | |
1514 | hidnplayr | 761 | .free: |
2402 | hidnplayr | 762 | call SOCKET_free |
763 | mov dword [esp+32], 0 |
||
1159 | hidnplayr | 764 | |
2402 | hidnplayr | 765 | ret |
1159 | hidnplayr | 766 | |
767 | |||
1257 | hidnplayr | 768 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 769 | ; |
770 | ; SOCKET_receive |
||
771 | ; |
||
772 | ; IN: socket number in ecx |
||
1249 | hidnplayr | 773 | ; addr to buffer in edx |
774 | ; length of buffer in esi |
||
1159 | hidnplayr | 775 | ; flags in edi |
776 | ; OUT: eax is number of bytes copied, -1 on error |
||
777 | ; |
||
1257 | hidnplayr | 778 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 779 | align 4 |
1514 | hidnplayr | 780 | SOCKET_receive: |
1159 | hidnplayr | 781 | |
3251 | hidnplayr | 782 | DEBUGF 2,"SOCKET_receive: socknum=%u bufaddr=%x buflength=%u flags=%x\n", ecx, edx, esi, edi |
1514 | hidnplayr | 783 | |
2402 | hidnplayr | 784 | call SOCKET_num_to_ptr |
785 | jz s_error |
||
1159 | hidnplayr | 786 | |
2402 | hidnplayr | 787 | jmp [eax + SOCKET.rcv_proc] |
1533 | hidnplayr | 788 | |
1536 | hidnplayr | 789 | |
790 | align 4 |
||
1541 | hidnplayr | 791 | SOCKET_receive_dgram: |
1536 | hidnplayr | 792 | |
2402 | hidnplayr | 793 | DEBUGF 1,"SOCKET_receive: DGRAM\n" |
1536 | hidnplayr | 794 | |
2402 | hidnplayr | 795 | mov ebx, esi |
796 | mov edi, edx ; addr to buffer |
||
1159 | hidnplayr | 797 | |
2994 | hidnplayr | 798 | .loop: |
799 | get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, .block ; destroys esi and ecx |
||
1536 | hidnplayr | 800 | |
2402 | hidnplayr | 801 | mov ecx, [esi + socket_queue_entry.data_size] |
2891 | hidnplayr | 802 | DEBUGF 1,"SOCKET_receive: %u bytes data\n", ecx |
1159 | hidnplayr | 803 | |
2402 | hidnplayr | 804 | cmp ecx, ebx |
805 | ja .too_small |
||
1514 | hidnplayr | 806 | |
2402 | hidnplayr | 807 | push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later |
808 | mov esi, [esi + socket_queue_entry.data_ptr] |
||
2891 | hidnplayr | 809 | DEBUGF 1,"SOCKET_receive: Source buffer=%x real addr=%x\n", [esp], esi |
2402 | hidnplayr | 810 | mov [esp+32+4], ecx ; return number of bytes copied |
1159 | hidnplayr | 811 | |
1514 | hidnplayr | 812 | ; copy the data |
2402 | hidnplayr | 813 | shr ecx, 1 |
814 | jnc .nb |
||
815 | movsb |
||
1536 | hidnplayr | 816 | .nb: |
2402 | hidnplayr | 817 | shr ecx, 1 |
818 | jnc .nw |
||
819 | movsw |
||
1536 | hidnplayr | 820 | .nw: |
2402 | hidnplayr | 821 | test ecx, ecx |
822 | jz .nd |
||
823 | rep movsd |
||
1536 | hidnplayr | 824 | .nd: |
1159 | hidnplayr | 825 | |
2402 | hidnplayr | 826 | call kernel_free ; remove the packet |
827 | ret |
||
1514 | hidnplayr | 828 | |
1536 | hidnplayr | 829 | .too_small: |
1533 | hidnplayr | 830 | |
3251 | hidnplayr | 831 | DEBUGF 2,"SOCKET_receive: Buffer too small\n" |
2402 | hidnplayr | 832 | jmp s_error |
1536 | hidnplayr | 833 | |
2994 | hidnplayr | 834 | .block: |
835 | SOCKET_block eax, .loop, s_error |
||
836 | |||
837 | |||
1536 | hidnplayr | 838 | align 4 |
3228 | hidnplayr | 839 | SOCKET_receive_stream: |
1536 | hidnplayr | 840 | |
3228 | hidnplayr | 841 | DEBUGF 1,"SOCKET_receive: STREAM\n" |
1536 | hidnplayr | 842 | |
2402 | hidnplayr | 843 | mov ecx, esi |
844 | mov edi, edx |
||
2994 | hidnplayr | 845 | xor edx, edx |
2402 | hidnplayr | 846 | add eax, STREAM_SOCKET.rcv |
2998 | hidnplayr | 847 | .loop: |
848 | cmp [eax + RING_BUFFER.size], 0 |
||
849 | je .block |
||
2402 | hidnplayr | 850 | call SOCKET_ring_read |
851 | call SOCKET_ring_free |
||
1533 | hidnplayr | 852 | |
2402 | hidnplayr | 853 | mov [esp+32], ecx ; return number of bytes copied |
854 | ret |
||
1159 | hidnplayr | 855 | |
2994 | hidnplayr | 856 | .block: |
857 | SOCKET_block (eax - STREAM_SOCKET.rcv), .loop, s_error |
||
1159 | hidnplayr | 858 | |
2994 | hidnplayr | 859 | |
1257 | hidnplayr | 860 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 861 | ; |
862 | ; SOCKET_send |
||
863 | ; |
||
864 | ; |
||
865 | ; IN: socket number in ecx |
||
1206 | hidnplayr | 866 | ; pointer to data in edx |
867 | ; datalength in esi |
||
1159 | hidnplayr | 868 | ; flags in edi |
869 | ; OUT: -1 on error |
||
870 | ; |
||
1257 | hidnplayr | 871 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 872 | align 4 |
1514 | hidnplayr | 873 | SOCKET_send: |
1159 | hidnplayr | 874 | |
3251 | hidnplayr | 875 | DEBUGF 2,"SOCKET_send: socknum=%u data ptr=%x length=%u flags=%x\n", ecx, edx, esi, edi |
1159 | hidnplayr | 876 | |
2402 | hidnplayr | 877 | call SOCKET_num_to_ptr |
878 | jz s_error |
||
1159 | hidnplayr | 879 | |
2402 | hidnplayr | 880 | mov ecx, esi |
881 | mov esi, edx |
||
1763 | hidnplayr | 882 | |
2402 | hidnplayr | 883 | jmp [eax + SOCKET.snd_proc] |
1206 | hidnplayr | 884 | |
885 | |||
1536 | hidnplayr | 886 | align 4 |
887 | SOCKET_send_udp: |
||
1529 | hidnplayr | 888 | |
2402 | hidnplayr | 889 | DEBUGF 1,"SOCKET_send: UDP\n" |
1159 | hidnplayr | 890 | |
2573 | hidnplayr | 891 | mov [esp+32], ecx |
2402 | hidnplayr | 892 | call UDP_output |
2573 | hidnplayr | 893 | cmp eax, -1 |
894 | je s_error |
||
2402 | hidnplayr | 895 | ret |
1159 | hidnplayr | 896 | |
897 | |||
1536 | hidnplayr | 898 | align 4 |
899 | SOCKET_send_tcp: |
||
1254 | hidnplayr | 900 | |
2402 | hidnplayr | 901 | DEBUGF 1,"SOCKET_send: TCP\n" |
1254 | hidnplayr | 902 | |
2402 | hidnplayr | 903 | push eax |
904 | add eax, STREAM_SOCKET.snd |
||
905 | call SOCKET_ring_write |
||
906 | pop eax |
||
1536 | hidnplayr | 907 | |
2621 | hidnplayr | 908 | mov [esp+32], ecx |
909 | |||
2402 | hidnplayr | 910 | call TCP_output |
911 | ret |
||
1159 | hidnplayr | 912 | |
1249 | hidnplayr | 913 | |
1543 | hidnplayr | 914 | align 4 |
915 | SOCKET_send_ip: |
||
1249 | hidnplayr | 916 | |
2891 | hidnplayr | 917 | DEBUGF 1,"SOCKET_send: IPv4\n" |
1543 | hidnplayr | 918 | |
2573 | hidnplayr | 919 | mov [esp+32], ecx |
2402 | hidnplayr | 920 | call IPv4_output_raw |
2573 | hidnplayr | 921 | cmp eax, -1 |
922 | je s_error |
||
2402 | hidnplayr | 923 | ret |
1543 | hidnplayr | 924 | |
2573 | hidnplayr | 925 | |
1541 | hidnplayr | 926 | align 4 |
927 | SOCKET_send_icmp: |
||
1249 | hidnplayr | 928 | |
2402 | hidnplayr | 929 | DEBUGF 1,"SOCKET_send: ICMP\n" |
1541 | hidnplayr | 930 | |
2573 | hidnplayr | 931 | mov [esp+32], ecx |
2402 | hidnplayr | 932 | call ICMP_output_raw |
2573 | hidnplayr | 933 | cmp eax, -1 |
934 | je s_error |
||
2402 | hidnplayr | 935 | ret |
1541 | hidnplayr | 936 | |
937 | |||
2931 | hidnplayr | 938 | align 4 |
939 | SOCKET_send_pppoe: |
||
1541 | hidnplayr | 940 | |
2931 | hidnplayr | 941 | DEBUGF 1,"SOCKET_send: PPPoE\n" |
1541 | hidnplayr | 942 | |
2931 | hidnplayr | 943 | mov [esp+32], ecx |
944 | mov ebx, [eax + SOCKET.device] |
||
945 | |||
946 | call PPPoE_discovery_output |
||
947 | cmp eax, -1 |
||
948 | je s_error |
||
949 | ret |
||
950 | |||
951 | |||
952 | |||
3228 | hidnplayr | 953 | align 4 |
3251 | hidnplayr | 954 | SOCKET_send_local: |
2931 | hidnplayr | 955 | |
3251 | hidnplayr | 956 | DEBUGF 1,"SOCKET_send: LOCAL\n" |
3228 | hidnplayr | 957 | |
3229 | hidnplayr | 958 | ; does this socket have a PID yet? |
959 | cmp [eax + SOCKET.PID], 0 |
||
960 | jne @f |
||
961 | |||
962 | ; Change PID to that of current process |
||
963 | mov ebx, [TASK_BASE] |
||
964 | mov ebx, [ebx + TASKDATA.pid] |
||
965 | mov [eax + SOCKET.PID], ebx |
||
966 | @@: |
||
967 | |||
968 | ; get the other side's socket and check if it still exists |
||
3228 | hidnplayr | 969 | mov eax, [eax + SOCKET.device] |
970 | call SOCKET_check |
||
971 | jz s_error |
||
972 | |||
3229 | hidnplayr | 973 | ; allright, shove in the data! |
3228 | hidnplayr | 974 | push eax |
975 | add eax, STREAM_SOCKET.rcv |
||
976 | call SOCKET_ring_write |
||
977 | pop eax |
||
978 | |||
3229 | hidnplayr | 979 | ; return the number of written bytes (or errorcode) to application |
3228 | hidnplayr | 980 | mov [esp+32], ecx |
981 | |||
3229 | hidnplayr | 982 | ; and notify the other end |
3228 | hidnplayr | 983 | call SOCKET_notify_owner |
984 | |||
985 | ret |
||
986 | |||
987 | |||
1257 | hidnplayr | 988 | ;----------------------------------------------------------------- |
1256 | clevermous | 989 | ; |
1257 | hidnplayr | 990 | ; SOCKET_get_options |
1256 | clevermous | 991 | ; |
1514 | hidnplayr | 992 | ; IN: ecx = socket number |
993 | ; edx = pointer to the options: |
||
1257 | hidnplayr | 994 | ; dd level, optname, optval, optlen |
1256 | clevermous | 995 | ; OUT: -1 on error |
996 | ; |
||
997 | ; At moment, uses only pseudo-optname -2 for get last_ack_number for TCP. |
||
998 | ; TODO: find best way to notify that send()'ed data were acknowledged |
||
1831 | hidnplayr | 999 | ; Also pseudo-optname -3 is valid and returns socket state, one of TCPS_*. |
1256 | clevermous | 1000 | ; |
1257 | hidnplayr | 1001 | ;----------------------------------------------------------------- |
1002 | align 4 |
||
1514 | hidnplayr | 1003 | SOCKET_get_opt: |
1257 | hidnplayr | 1004 | |
3251 | hidnplayr | 1005 | DEBUGF 2,"SOCKET_get_opt\n" |
1514 | hidnplayr | 1006 | |
2402 | hidnplayr | 1007 | call SOCKET_num_to_ptr |
1008 | jz s_error |
||
1514 | hidnplayr | 1009 | |
2402 | hidnplayr | 1010 | cmp dword [edx], IP_PROTO_TCP |
1011 | jne s_error |
||
1012 | cmp dword [edx+4], -2 |
||
1013 | je @f |
||
1014 | cmp dword [edx+4], -3 |
||
1015 | jne s_error |
||
1299 | clevermous | 1016 | @@: |
1514 | hidnplayr | 1017 | ; mov eax, [edx+12] |
1018 | ; test eax, eax |
||
1019 | ; jz .fail |
||
1020 | ; cmp dword [eax], 4 |
||
1021 | ; mov dword [eax], 4 |
||
1022 | ; jb .fail |
||
1023 | ; stdcall net_socket_num_to_addr, ecx |
||
1024 | ; test eax, eax |
||
1025 | ; jz .fail |
||
1026 | ; ; todo: check that eax is really TCP socket |
||
1027 | ; mov ecx, [eax + TCP_SOCKET.last_ack_number] |
||
1028 | ; cmp dword [edx+4], -2 |
||
1029 | ; jz @f |
||
1030 | ; mov ecx, [eax + TCP_SOCKET.state] |
||
1299 | clevermous | 1031 | @@: |
2402 | hidnplayr | 1032 | mov eax, [edx+8] |
1033 | test eax, eax |
||
1034 | jz @f |
||
1035 | mov [eax], ecx |
||
1256 | clevermous | 1036 | @@: |
2402 | hidnplayr | 1037 | mov dword [esp+32], 0 |
1038 | ret |
||
1159 | hidnplayr | 1039 | |
1040 | |||
1529 | hidnplayr | 1041 | |
2731 | hidnplayr | 1042 | ;----------------------------------------------------------------- |
1043 | ; |
||
1044 | ; SOCKET_set_options |
||
1045 | ; |
||
1046 | ; IN: ecx = socket number |
||
1047 | ; edx = pointer to the options: |
||
2877 | hidnplayr | 1048 | ; dd level, optname, optlen, optval |
2731 | hidnplayr | 1049 | ; OUT: -1 on error |
1050 | ; |
||
1051 | ;----------------------------------------------------------------- |
||
1542 | hidnplayr | 1052 | align 4 |
1053 | SOCKET_set_opt: |
||
1054 | |||
3251 | hidnplayr | 1055 | DEBUGF 2,"SOCKET_set_opt\n" |
2731 | hidnplayr | 1056 | |
1057 | call SOCKET_num_to_ptr |
||
1058 | jz s_error |
||
1059 | |||
2877 | hidnplayr | 1060 | cmp dword [edx], SOL_SOCKET |
1061 | jne s_error |
||
2731 | hidnplayr | 1062 | |
2877 | hidnplayr | 1063 | cmp dword [edx+4], SO_BINDTODEVICE |
1064 | je .bind |
||
2731 | hidnplayr | 1065 | |
2996 | hidnplayr | 1066 | cmp dword [edx+4], SO_BLOCK |
1067 | je .block |
||
1068 | |||
2877 | hidnplayr | 1069 | jmp s_error |
1070 | |||
1071 | .bind: |
||
1072 | cmp dword [edx+8], 0 |
||
1073 | je .unbind |
||
1074 | |||
1075 | movzx edx, byte [edx + 9] |
||
1076 | cmp edx, MAX_NET_DEVICES |
||
1077 | ja s_error |
||
1078 | |||
1079 | mov edx, [NET_DRV_LIST + 4*edx] |
||
1080 | test edx, edx |
||
1081 | jz s_error |
||
1082 | mov [eax + SOCKET.device], edx |
||
1083 | |||
2891 | hidnplayr | 1084 | DEBUGF 1,"SOCKET_set_opt: Bound socket %x to device %x\n",eax, edx |
2877 | hidnplayr | 1085 | |
1086 | mov dword [esp+32], 0 ; success! |
||
2402 | hidnplayr | 1087 | ret |
1542 | hidnplayr | 1088 | |
2877 | hidnplayr | 1089 | .unbind: |
1090 | mov [eax + SOCKET.device], 0 |
||
1542 | hidnplayr | 1091 | |
2877 | hidnplayr | 1092 | mov dword [esp+32], 0 ; success! |
1093 | ret |
||
1542 | hidnplayr | 1094 | |
2996 | hidnplayr | 1095 | .block: |
1096 | cmp dword [edx+8], 0 |
||
1097 | je .unblock |
||
2877 | hidnplayr | 1098 | |
2996 | hidnplayr | 1099 | or [eax + SOCKET.options], SO_BLOCK |
2877 | hidnplayr | 1100 | |
2996 | hidnplayr | 1101 | mov dword [esp+32], 0 ; success! |
1102 | ret |
||
1103 | |||
1104 | .unblock: |
||
1105 | and [eax + SOCKET.options], not SO_BLOCK |
||
1106 | |||
1107 | mov dword [esp+32], 0 ; success! |
||
1108 | ret |
||
1109 | |||
1110 | |||
1111 | |||
3228 | hidnplayr | 1112 | ;----------------------------------------------------------------- |
1113 | ; |
||
1114 | ; SOCKET_pair |
||
1115 | ; |
||
3251 | hidnplayr | 1116 | ; Allocates a pair of linked LOCAL domain sockets |
3228 | hidnplayr | 1117 | ; |
1118 | ; IN: / |
||
1119 | ; OUT: eax is socket1 num, -1 on error |
||
1120 | ; ebx is socket2 num |
||
1121 | ; |
||
1122 | ;----------------------------------------------------------------- |
||
1123 | align 4 |
||
1124 | SOCKET_pair: |
||
2996 | hidnplayr | 1125 | |
3251 | hidnplayr | 1126 | DEBUGF 2,"SOCKET_pair\n" |
2996 | hidnplayr | 1127 | |
3228 | hidnplayr | 1128 | call SOCKET_alloc |
1129 | jz s_error |
||
1130 | mov [esp+32], edi ; application's eax |
||
1131 | |||
3251 | hidnplayr | 1132 | mov [eax + SOCKET.Domain], AF_LOCAL |
3228 | hidnplayr | 1133 | mov [eax + SOCKET.Type], SOCK_STREAM |
1134 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
3251 | hidnplayr | 1135 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
3228 | hidnplayr | 1136 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
1137 | mov ebx, eax |
||
1138 | |||
1139 | call SOCKET_alloc |
||
1140 | jz .error |
||
1141 | mov [esp+24], edi ; application's ebx |
||
1142 | |||
3251 | hidnplayr | 1143 | mov [eax + SOCKET.Domain], AF_LOCAL |
3228 | hidnplayr | 1144 | mov [eax + SOCKET.Type], SOCK_STREAM |
1145 | mov [eax + SOCKET.Protocol], 0 ;;; CHECKME |
||
3251 | hidnplayr | 1146 | mov [eax + SOCKET.snd_proc], SOCKET_send_local |
3228 | hidnplayr | 1147 | mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream |
1148 | |||
1149 | ; Link the two sockets to eachother |
||
1150 | mov [eax + SOCKET.device], ebx |
||
1151 | mov [ebx + SOCKET.device], eax |
||
1152 | |||
1153 | lea eax, [eax + STREAM_SOCKET.rcv] |
||
1154 | call SOCKET_ring_create |
||
1155 | |||
1156 | lea eax, [ebx + STREAM_SOCKET.rcv] |
||
1157 | call SOCKET_ring_create |
||
1158 | pop eax |
||
1159 | |||
1160 | ret |
||
1161 | |||
1162 | .error: |
||
1163 | mov eax, ebx |
||
1164 | call SOCKET_free |
||
1165 | jmp s_error |
||
1166 | |||
1167 | |||
1168 | |||
1257 | hidnplayr | 1169 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1170 | ; |
1529 | hidnplayr | 1171 | ; SOCKET_debug |
1172 | ; |
||
1173 | ; Copies socket variables to application buffer |
||
1174 | ; |
||
1175 | ; IN: ecx = socket number |
||
1176 | ; edx = pointer to buffer |
||
1177 | ; |
||
1178 | ; OUT: -1 on error |
||
1179 | ;----------------------------------------------------------------- |
||
1180 | align 4 |
||
1181 | SOCKET_debug: |
||
1182 | |||
3251 | hidnplayr | 1183 | DEBUGF 1,"SOCKET_debug\n" |
1529 | hidnplayr | 1184 | |
3146 | hidnplayr | 1185 | mov edi, edx |
1186 | |||
1187 | test ecx, ecx |
||
1188 | jz .returnall |
||
1189 | |||
2402 | hidnplayr | 1190 | call SOCKET_num_to_ptr |
1191 | jz s_error |
||
1529 | hidnplayr | 1192 | |
2402 | hidnplayr | 1193 | mov esi, eax |
1194 | mov ecx, SOCKETBUFFSIZE/4 |
||
1195 | rep movsd |
||
1529 | hidnplayr | 1196 | |
2402 | hidnplayr | 1197 | mov dword [esp+32], 0 |
1198 | ret |
||
1529 | hidnplayr | 1199 | |
3146 | hidnplayr | 1200 | .returnall: |
1201 | mov ebx, net_sockets |
||
1202 | .next_socket: |
||
1203 | mov ebx, [ebx + SOCKET.NextPtr] |
||
1204 | test ebx, ebx |
||
1205 | jz .done |
||
1206 | mov eax, [ebx + SOCKET.Number] |
||
1207 | stosd |
||
1208 | jmp .next_socket |
||
1209 | .done: |
||
1210 | xor eax, eax |
||
1211 | stosd |
||
1529 | hidnplayr | 1212 | |
3146 | hidnplayr | 1213 | mov dword [esp+32], 0 |
1214 | ret |
||
1215 | |||
1216 | |||
1529 | hidnplayr | 1217 | ;----------------------------------------------------------------- |
1218 | ; |
||
1514 | hidnplayr | 1219 | ; SOCKET_find_port |
1206 | hidnplayr | 1220 | ; |
1514 | hidnplayr | 1221 | ; Fills in the local port number for TCP and UDP sockets |
1222 | ; This procedure always works because the number of sockets is |
||
1223 | ; limited to a smaller number then the number of possible ports |
||
1206 | hidnplayr | 1224 | ; |
1514 | hidnplayr | 1225 | ; IN: eax = socket pointer |
1226 | ; OUT: / |
||
1206 | hidnplayr | 1227 | ; |
1257 | hidnplayr | 1228 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1229 | align 4 |
1514 | hidnplayr | 1230 | SOCKET_find_port: |
1159 | hidnplayr | 1231 | |
3251 | hidnplayr | 1232 | DEBUGF 2,"SOCKET_find_port\n" |
1159 | hidnplayr | 1233 | |
2402 | hidnplayr | 1234 | push ebx esi ecx |
1514 | hidnplayr | 1235 | |
2402 | hidnplayr | 1236 | cmp [eax + SOCKET.Protocol], IP_PROTO_UDP |
1237 | je .udp |
||
1159 | hidnplayr | 1238 | |
2402 | hidnplayr | 1239 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1240 | je .tcp |
||
1159 | hidnplayr | 1241 | |
2402 | hidnplayr | 1242 | pop ecx esi ebx |
1243 | ret |
||
1514 | hidnplayr | 1244 | |
1206 | hidnplayr | 1245 | .udp: |
2402 | hidnplayr | 1246 | mov bx, [last_UDP_port] |
1247 | call .findit |
||
1248 | mov [last_UDP_port], bx |
||
1206 | hidnplayr | 1249 | |
2995 | hidnplayr | 1250 | pop ecx esi ebx |
1251 | ret |
||
1252 | |||
1206 | hidnplayr | 1253 | .tcp: |
2402 | hidnplayr | 1254 | mov bx, [last_TCP_port] |
1255 | call .findit |
||
1256 | mov [last_TCP_port], bx |
||
1206 | hidnplayr | 1257 | |
2995 | hidnplayr | 1258 | pop ecx esi ebx |
1259 | ret |
||
1206 | hidnplayr | 1260 | |
2995 | hidnplayr | 1261 | |
1514 | hidnplayr | 1262 | .restart: |
2995 | hidnplayr | 1263 | mov bx, MIN_EPHEMERAL_PORT_N |
1514 | hidnplayr | 1264 | .findit: |
2995 | hidnplayr | 1265 | cmp bx, MAX_EPHEMERAL_PORT_N |
1266 | je .restart |
||
1206 | hidnplayr | 1267 | |
2995 | hidnplayr | 1268 | add bh, 1 |
1269 | adc bl, 0 |
||
1206 | hidnplayr | 1270 | |
2402 | hidnplayr | 1271 | call SOCKET_check_port |
1272 | jz .findit |
||
1273 | ret |
||
1206 | hidnplayr | 1274 | |
1257 | hidnplayr | 1275 | |
1276 | |||
1277 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1278 | ; |
1542 | hidnplayr | 1279 | ; SOCKET_check_port (to be used with AF_INET only!) |
1206 | hidnplayr | 1280 | ; |
1514 | hidnplayr | 1281 | ; Checks if a local port number is unused |
1282 | ; If the proposed port number is unused, it is filled in in the socket structure |
||
1206 | hidnplayr | 1283 | ; |
1514 | hidnplayr | 1284 | ; IN: eax = socket ptr (to find out if its a TCP/UDP socket) |
2995 | hidnplayr | 1285 | ; bx = proposed socket number (network byte order) |
1206 | hidnplayr | 1286 | ; |
2995 | hidnplayr | 1287 | ; OUT: ZF = set on error |
1514 | hidnplayr | 1288 | ; |
1257 | hidnplayr | 1289 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1290 | align 4 |
1514 | hidnplayr | 1291 | SOCKET_check_port: |
1292 | |||
3251 | hidnplayr | 1293 | DEBUGF 2,"SOCKET_check_port: " |
1514 | hidnplayr | 1294 | |
2402 | hidnplayr | 1295 | mov ecx, [eax + SOCKET.Protocol] |
2622 | hidnplayr | 1296 | mov edx, [eax + IP_SOCKET.LocalIP] |
2402 | hidnplayr | 1297 | mov esi, net_sockets |
1206 | hidnplayr | 1298 | |
1299 | .next_socket: |
||
2402 | hidnplayr | 1300 | mov esi, [esi + SOCKET.NextPtr] |
1301 | or esi, esi |
||
1302 | jz .port_ok |
||
1206 | hidnplayr | 1303 | |
2402 | hidnplayr | 1304 | cmp [esi + SOCKET.Protocol], ecx |
1305 | jne .next_socket |
||
1206 | hidnplayr | 1306 | |
2622 | hidnplayr | 1307 | cmp [esi + IP_SOCKET.LocalIP], edx |
1308 | jne .next_socket |
||
1309 | |||
2402 | hidnplayr | 1310 | cmp [esi + UDP_SOCKET.LocalPort], bx |
1311 | jne .next_socket |
||
1206 | hidnplayr | 1312 | |
3251 | hidnplayr | 1313 | DEBUGF 2,"local port %x already in use\n", bx ; FIXME: find a way to print big endian values with debugf |
2402 | hidnplayr | 1314 | ret |
1206 | hidnplayr | 1315 | |
1316 | .port_ok: |
||
3251 | hidnplayr | 1317 | DEBUGF 2,"local port %x is free\n", bx ; FIXME: find a way to print big endian values with debugf |
2402 | hidnplayr | 1318 | mov [eax + UDP_SOCKET.LocalPort], bx |
2995 | hidnplayr | 1319 | or bx, bx ; clear the zero-flag |
2402 | hidnplayr | 1320 | ret |
1206 | hidnplayr | 1321 | |
1322 | |||
1257 | hidnplayr | 1323 | |
1324 | ;----------------------------------------------------------------- |
||
1206 | hidnplayr | 1325 | ; |
1514 | hidnplayr | 1326 | ; SOCKET_input |
1206 | hidnplayr | 1327 | ; |
1536 | hidnplayr | 1328 | ; Updates a (stateless) socket with received data |
1206 | hidnplayr | 1329 | ; |
1514 | hidnplayr | 1330 | ; Note: the mutex should already be set ! |
1206 | hidnplayr | 1331 | ; |
1249 | hidnplayr | 1332 | ; IN: eax = socket ptr |
1514 | hidnplayr | 1333 | ; ecx = data size |
1334 | ; esi = ptr to data |
||
1335 | ; [esp] = ptr to buf |
||
1336 | ; [esp + 4] = buf size |
||
1249 | hidnplayr | 1337 | ; |
1514 | hidnplayr | 1338 | ; OUT: / |
1206 | hidnplayr | 1339 | ; |
1257 | hidnplayr | 1340 | ;----------------------------------------------------------------- |
1206 | hidnplayr | 1341 | align 4 |
1514 | hidnplayr | 1342 | SOCKET_input: |
1206 | hidnplayr | 1343 | |
3251 | hidnplayr | 1344 | DEBUGF 2,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx |
1206 | hidnplayr | 1345 | |
2402 | hidnplayr | 1346 | mov [esp+4], ecx |
1347 | push esi |
||
1348 | mov esi, esp |
||
1514 | hidnplayr | 1349 | |
2402 | hidnplayr | 1350 | add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, sizeof.socket_queue_entry, SOCKET_input.full |
1514 | hidnplayr | 1351 | |
3251 | hidnplayr | 1352 | DEBUGF 1,"SOCKET_input: success\n" |
2402 | hidnplayr | 1353 | add esp, sizeof.socket_queue_entry |
1206 | hidnplayr | 1354 | |
2402 | hidnplayr | 1355 | pusha |
1356 | lea ecx, [eax + SOCKET.mutex] |
||
1357 | call mutex_unlock |
||
1358 | popa |
||
1359 | |||
1360 | jmp SOCKET_notify_owner |
||
1361 | |||
1514 | hidnplayr | 1362 | .full: |
2402 | hidnplayr | 1363 | DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax |
1206 | hidnplayr | 1364 | |
2402 | hidnplayr | 1365 | pusha |
1366 | lea ecx, [eax + SOCKET.mutex] |
||
1367 | call mutex_unlock |
||
1368 | popa |
||
1514 | hidnplayr | 1369 | |
2402 | hidnplayr | 1370 | call kernel_free |
1371 | add esp, 8 |
||
1533 | hidnplayr | 1372 | |
2402 | hidnplayr | 1373 | ret |
1374 | |||
1375 | |||
1533 | hidnplayr | 1376 | ;-------------------------- |
1377 | ; |
||
1378 | ; eax = ptr to ring struct (just a buffer of the right size) |
||
1379 | ; |
||
1380 | align 4 |
||
1381 | SOCKET_ring_create: |
||
1382 | |||
2402 | hidnplayr | 1383 | push esi |
1384 | mov esi, eax |
||
1543 | hidnplayr | 1385 | |
2402 | hidnplayr | 1386 | push edx |
1387 | stdcall create_ring_buffer, SOCKET_MAXDATA, PG_SW |
||
1388 | pop edx |
||
1533 | hidnplayr | 1389 | |
2402 | hidnplayr | 1390 | DEBUGF 1,"SOCKET_ring_created: %x\n", eax |
1391 | mov [esi + RING_BUFFER.start_ptr], eax |
||
1392 | mov [esi + RING_BUFFER.write_ptr], eax |
||
1393 | mov [esi + RING_BUFFER.read_ptr], eax |
||
1394 | mov [esi + RING_BUFFER.size], 0 |
||
2888 | hidnplayr | 1395 | add eax, SOCKET_MAXDATA |
2402 | hidnplayr | 1396 | mov [esi + RING_BUFFER.end_ptr], eax |
1397 | mov eax, esi |
||
1398 | pop esi |
||
1533 | hidnplayr | 1399 | |
2402 | hidnplayr | 1400 | ret |
1533 | hidnplayr | 1401 | |
1514 | hidnplayr | 1402 | ;----------------------------------------------------------------- |
1403 | ; |
||
1533 | hidnplayr | 1404 | ; SOCKET_ring_write |
1529 | hidnplayr | 1405 | ; |
1533 | hidnplayr | 1406 | ; Adds data to a stream socket, and updates write pointer and size |
1529 | hidnplayr | 1407 | ; |
1408 | ; IN: eax = ptr to ring struct |
||
1409 | ; ecx = data size |
||
1410 | ; esi = ptr to data |
||
1411 | ; |
||
1533 | hidnplayr | 1412 | ; OUT: ecx = number of bytes stored |
1529 | hidnplayr | 1413 | ; |
1414 | ;----------------------------------------------------------------- |
||
1415 | align 4 |
||
1533 | hidnplayr | 1416 | SOCKET_ring_write: |
1529 | hidnplayr | 1417 | |
2402 | hidnplayr | 1418 | DEBUGF 1,"SOCKET_ring_write: ringbuff=%x ptr=%x size=%u\n", eax, esi, ecx |
1529 | hidnplayr | 1419 | |
2402 | hidnplayr | 1420 | add [eax + RING_BUFFER.size], ecx |
2573 | hidnplayr | 1421 | jc .way_too_large |
2402 | hidnplayr | 1422 | cmp [eax + RING_BUFFER.size], SOCKET_MAXDATA |
1423 | ja .too_large |
||
1529 | hidnplayr | 1424 | |
1425 | .copy: |
||
2402 | hidnplayr | 1426 | mov edi, [eax + RING_BUFFER.write_ptr] |
1427 | DEBUGF 2,"SOCKET_ring_write: %u bytes from %x to %x\n", ecx, esi, edi |
||
1529 | hidnplayr | 1428 | |
2402 | hidnplayr | 1429 | push ecx |
1430 | shr ecx, 1 |
||
1431 | jnc .nb |
||
1432 | movsb |
||
1536 | hidnplayr | 1433 | .nb: |
2402 | hidnplayr | 1434 | shr ecx, 1 |
1435 | jnc .nw |
||
1436 | movsw |
||
1536 | hidnplayr | 1437 | .nw: |
2402 | hidnplayr | 1438 | test ecx, ecx |
1439 | jz .nd |
||
1440 | rep movsd |
||
1536 | hidnplayr | 1441 | .nd: |
2402 | hidnplayr | 1442 | pop ecx |
1529 | hidnplayr | 1443 | |
2402 | hidnplayr | 1444 | cmp edi, [eax + RING_BUFFER.end_ptr] |
1445 | jae .wrap |
||
1446 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1447 | |
2402 | hidnplayr | 1448 | ret |
1529 | hidnplayr | 1449 | |
1533 | hidnplayr | 1450 | .wrap: |
2402 | hidnplayr | 1451 | sub edi, SOCKET_MAXDATA |
1452 | mov [eax + RING_BUFFER.write_ptr], edi |
||
1533 | hidnplayr | 1453 | |
2402 | hidnplayr | 1454 | ret |
1533 | hidnplayr | 1455 | |
2404 | hidnplayr | 1456 | .too_large: ; update size, we will fill buffer completely |
1457 | sub [eax + RING_BUFFER.size], SOCKET_MAXDATA |
||
2402 | hidnplayr | 1458 | sub ecx, [eax + RING_BUFFER.size] |
2404 | hidnplayr | 1459 | mov [eax + RING_BUFFER.size], SOCKET_MAXDATA |
2573 | hidnplayr | 1460 | ja .copy |
1529 | hidnplayr | 1461 | |
2573 | hidnplayr | 1462 | .full: |
2402 | hidnplayr | 1463 | DEBUGF 2,"SOCKET_ring_write: ring buffer is full!\n" |
1464 | xor ecx, ecx |
||
1465 | ret |
||
1529 | hidnplayr | 1466 | |
2573 | hidnplayr | 1467 | .way_too_large: |
1468 | sub [eax + RING_BUFFER.size], ecx |
||
1469 | mov ecx, SOCKET_MAXDATA |
||
1470 | sub ecx, [eax + RING_BUFFER.size] |
||
1471 | ja .copy |
||
1472 | jmp .full |
||
1529 | hidnplayr | 1473 | |
2573 | hidnplayr | 1474 | |
1475 | |||
1529 | hidnplayr | 1476 | ;----------------------------------------------------------------- |
1477 | ; |
||
1478 | ; SOCKET_ring_read |
||
1479 | ; |
||
2893 | hidnplayr | 1480 | ; IN: eax = ring struct ptr |
1481 | ; ecx = bytes to read |
||
1482 | ; edx = offset |
||
2994 | hidnplayr | 1483 | ; edi = ptr to buffer start |
1529 | hidnplayr | 1484 | ; |
2994 | hidnplayr | 1485 | ; OUT: eax = unchanged |
1486 | ; ecx = number of bytes read (0 on error) |
||
1487 | ; edx = destroyed |
||
1488 | ; esi = destroyed |
||
1489 | ; edi = ptr to buffer end |
||
1529 | hidnplayr | 1490 | ; |
1491 | ;----------------------------------------------------------------- |
||
1492 | align 4 |
||
1493 | SOCKET_ring_read: |
||
1494 | |||
2893 | hidnplayr | 1495 | DEBUGF 1,"SOCKET_ring_read: ringbuff=%x ptr=%x size=%u offset=%x\n", eax, edi, ecx, edx |
1529 | hidnplayr | 1496 | |
2893 | hidnplayr | 1497 | mov esi, [eax + RING_BUFFER.read_ptr] |
1498 | add esi, edx ; esi = start_ptr + offset |
||
1499 | |||
1500 | neg edx |
||
1501 | add edx, [eax + RING_BUFFER.size] ; edx = snd.size - offset |
||
1502 | jle .no_data_at_all |
||
1503 | |||
1504 | cmp ecx, edx |
||
2402 | hidnplayr | 1505 | ja .less_data |
1529 | hidnplayr | 1506 | |
1507 | .copy: |
||
2402 | hidnplayr | 1508 | DEBUGF 2,"SOCKET_ring_read: %u bytes from %x to %x\n", ecx, esi, edi |
1509 | push ecx |
||
1510 | shr ecx, 1 |
||
1511 | jnc .nb |
||
1512 | movsb |
||
1536 | hidnplayr | 1513 | .nb: |
2402 | hidnplayr | 1514 | shr ecx, 1 |
1515 | jnc .nw |
||
1516 | movsw |
||
1536 | hidnplayr | 1517 | .nw: |
2402 | hidnplayr | 1518 | test ecx, ecx |
1519 | jz .nd |
||
1520 | rep movsd |
||
1536 | hidnplayr | 1521 | .nd: |
2402 | hidnplayr | 1522 | pop ecx |
2893 | hidnplayr | 1523 | ret |
1529 | hidnplayr | 1524 | |
1830 | hidnplayr | 1525 | .no_data_at_all: |
2894 | hidnplayr | 1526 | DEBUGF 1,"SOCKET_ring_read: no data at all!\n" |
2993 | hidnplayr | 1527 | xor ecx, ecx |
2402 | hidnplayr | 1528 | ret |
1529 | hidnplayr | 1529 | |
1533 | hidnplayr | 1530 | .less_data: |
2893 | hidnplayr | 1531 | mov ecx, edx |
2402 | hidnplayr | 1532 | jmp .copy |
1529 | hidnplayr | 1533 | |
1534 | |||
1535 | ;----------------------------------------------------------------- |
||
1536 | ; |
||
1537 | ; SOCKET_ring_free |
||
1538 | ; |
||
1539 | ; Free's some bytes from the ringbuffer |
||
1540 | ; |
||
1541 | ; IN: eax = ptr to ring struct |
||
1542 | ; ecx = data size |
||
1543 | ; |
||
1544 | ; OUT: ecx = number of bytes free-ed |
||
1545 | ; |
||
1546 | ;----------------------------------------------------------------- |
||
1547 | align 4 |
||
1548 | SOCKET_ring_free: |
||
1549 | |||
2402 | hidnplayr | 1550 | DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax |
1529 | hidnplayr | 1551 | |
2402 | hidnplayr | 1552 | sub [eax + RING_BUFFER.size], ecx |
2888 | hidnplayr | 1553 | jb .error |
2402 | hidnplayr | 1554 | add [eax + RING_BUFFER.read_ptr], ecx |
1529 | hidnplayr | 1555 | |
2402 | hidnplayr | 1556 | mov edx, [eax + RING_BUFFER.end_ptr] |
1557 | cmp [eax + RING_BUFFER.read_ptr], edx |
||
1558 | jb @f |
||
1559 | sub [eax + RING_BUFFER.read_ptr], SOCKET_MAXDATA |
||
1529 | hidnplayr | 1560 | @@: |
2402 | hidnplayr | 1561 | ret |
1529 | hidnplayr | 1562 | |
2888 | hidnplayr | 1563 | .error: ; we could free all available bytes, but that would be stupid, i guess.. |
1564 | DEBUGF 1,"SOCKET_ring_free: buffer=%x error!\n", eax |
||
2402 | hidnplayr | 1565 | add [eax + RING_BUFFER.size], ecx |
1566 | xor ecx, ecx |
||
1567 | ret |
||
1529 | hidnplayr | 1568 | |
1569 | |||
1570 | ;----------------------------------------------------------------- |
||
1571 | ; |
||
1514 | hidnplayr | 1572 | ; SOCKET_notify_owner |
1573 | ; |
||
1574 | ; notify's the owner of a socket that something happened |
||
1575 | ; |
||
1576 | ; IN: eax = socket ptr |
||
1577 | ; OUT: / |
||
1578 | ; |
||
1579 | ;----------------------------------------------------------------- |
||
1580 | align 4 |
||
1581 | SOCKET_notify_owner: |
||
1582 | |||
2402 | hidnplayr | 1583 | DEBUGF 1,"SOCKET_notify_owner: %x\n", eax |
1514 | hidnplayr | 1584 | |
2402 | hidnplayr | 1585 | call SOCKET_check |
1586 | jz .error |
||
1514 | hidnplayr | 1587 | |
2402 | hidnplayr | 1588 | push eax ecx esi |
1514 | hidnplayr | 1589 | |
1590 | ; socket exists, now try to flag an event to the application |
||
1591 | |||
2402 | hidnplayr | 1592 | mov eax, [eax + SOCKET.PID] |
2629 | hidnplayr | 1593 | test eax, eax |
1594 | jz .error2 |
||
2402 | hidnplayr | 1595 | mov ecx, 1 |
1596 | mov esi, TASK_DATA + TASKDATA.pid |
||
1206 | hidnplayr | 1597 | |
1598 | .next_pid: |
||
2402 | hidnplayr | 1599 | cmp [esi], eax |
1600 | je .found_pid |
||
1601 | inc ecx |
||
1602 | add esi, 0x20 |
||
1603 | cmp ecx, [TASK_COUNT] |
||
1604 | jbe .next_pid |
||
1206 | hidnplayr | 1605 | |
1514 | hidnplayr | 1606 | ; PID not found, TODO: close socket! |
1607 | |||
2402 | hidnplayr | 1608 | jmp .error2 |
1514 | hidnplayr | 1609 | |
1206 | hidnplayr | 1610 | .found_pid: |
2402 | hidnplayr | 1611 | shl ecx, 8 |
1612 | or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK |
||
1613 | mov [check_idle_semaphore], 200 |
||
1206 | hidnplayr | 1614 | |
2402 | hidnplayr | 1615 | DEBUGF 1,"SOCKET_notify_owner: succes!\n" |
1514 | hidnplayr | 1616 | |
1617 | .error2: |
||
2402 | hidnplayr | 1618 | pop esi ecx eax |
1536 | hidnplayr | 1619 | |
1514 | hidnplayr | 1620 | .error: |
1621 | |||
2402 | hidnplayr | 1622 | ret |
1206 | hidnplayr | 1623 | |
1624 | |||
1514 | hidnplayr | 1625 | ;-------------------------------------------------------------------- |
1626 | ; |
||
1627 | ; SOCKET_alloc |
||
1628 | ; |
||
1159 | hidnplayr | 1629 | ; Allocate memory for socket data and put new socket into the list |
1630 | ; Newly created socket is initialized with calling PID and number and |
||
1631 | ; put into beginning of list (which is a fastest way). |
||
1632 | ; |
||
1514 | hidnplayr | 1633 | ; IN: / |
1634 | ; OUT: eax = 0 on error, socket ptr otherwise |
||
1635 | ; edi = socket number |
||
1636 | ; ZF = cleared on error |
||
1159 | hidnplayr | 1637 | ; |
1514 | hidnplayr | 1638 | ;-------------------------------------------------------------------- |
1639 | align 4 |
||
1640 | SOCKET_alloc: |
||
1641 | |||
2402 | hidnplayr | 1642 | push ebx |
1514 | hidnplayr | 1643 | |
2402 | hidnplayr | 1644 | stdcall kernel_alloc, SOCKETBUFFSIZE |
1645 | DEBUGF 1, "SOCKET_alloc: ptr=%x\n", eax |
||
1646 | or eax, eax |
||
1647 | jz .exit |
||
1159 | hidnplayr | 1648 | |
1514 | hidnplayr | 1649 | ; zero-initialize allocated memory |
2402 | hidnplayr | 1650 | push eax |
1651 | mov edi, eax |
||
1652 | mov ecx, SOCKETBUFFSIZE / 4 |
||
1653 | xor eax, eax |
||
1654 | rep stosd |
||
1655 | pop eax |
||
1159 | hidnplayr | 1656 | |
1536 | hidnplayr | 1657 | ; set send-and receive procedures to return -1 |
2402 | hidnplayr | 1658 | mov [eax + SOCKET.snd_proc], s_error |
1659 | mov [eax + SOCKET.rcv_proc], s_error |
||
1536 | hidnplayr | 1660 | |
1514 | hidnplayr | 1661 | ; find first free socket number and use it |
2402 | hidnplayr | 1662 | mov edi, [last_socket_num] |
1159 | hidnplayr | 1663 | .next_socket_number: |
2402 | hidnplayr | 1664 | inc edi |
1665 | jz .next_socket_number ; avoid socket nr 0 |
||
1666 | cmp edi, -1 |
||
1667 | je .next_socket_number ; avoid socket nr -1 |
||
1668 | mov ebx, net_sockets |
||
1159 | hidnplayr | 1669 | .next_socket: |
2402 | hidnplayr | 1670 | mov ebx, [ebx + SOCKET.NextPtr] |
1671 | test ebx, ebx |
||
1672 | jz .last_socket |
||
1536 | hidnplayr | 1673 | |
2402 | hidnplayr | 1674 | cmp [ebx + SOCKET.Number], edi |
1675 | jne .next_socket |
||
1676 | jmp .next_socket_number |
||
1159 | hidnplayr | 1677 | |
1514 | hidnplayr | 1678 | .last_socket: |
2402 | hidnplayr | 1679 | mov [last_socket_num], edi |
1680 | mov [eax + SOCKET.Number], edi |
||
1681 | DEBUGF 1, "SOCKET_alloc: number=%u\n", edi |
||
1159 | hidnplayr | 1682 | |
1514 | hidnplayr | 1683 | ; Fill in PID |
2402 | hidnplayr | 1684 | mov ebx, [TASK_BASE] |
1685 | mov ebx, [ebx + TASKDATA.pid] |
||
1686 | mov [eax + SOCKET.PID], ebx |
||
1514 | hidnplayr | 1687 | |
2403 | hidnplayr | 1688 | ; init mutex |
1689 | pusha |
||
1690 | lea ecx, [eax + SOCKET.mutex] |
||
1691 | call mutex_init |
||
1692 | popa |
||
1693 | |||
1529 | hidnplayr | 1694 | ; add socket to the list by re-arranging some pointers |
2402 | hidnplayr | 1695 | mov ebx, [net_sockets + SOCKET.NextPtr] |
1514 | hidnplayr | 1696 | |
2402 | hidnplayr | 1697 | mov [eax + SOCKET.PrevPtr], net_sockets |
1698 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1699 | |
2402 | hidnplayr | 1700 | test ebx, ebx |
1701 | jz @f |
||
1702 | |||
1703 | pusha |
||
1704 | lea ecx, [ebx + SOCKET.mutex] |
||
1705 | call mutex_lock |
||
1706 | popa |
||
1707 | |||
1708 | mov [ebx + SOCKET.PrevPtr], eax |
||
1709 | |||
1710 | pusha |
||
1711 | lea ecx, [ebx + SOCKET.mutex] |
||
1712 | call mutex_unlock |
||
1713 | popa |
||
1514 | hidnplayr | 1714 | @@: |
1715 | |||
2402 | hidnplayr | 1716 | mov [net_sockets + SOCKET.NextPtr], eax |
1717 | or eax, eax ; used to clear zero flag |
||
1159 | hidnplayr | 1718 | .exit: |
2402 | hidnplayr | 1719 | pop ebx |
1514 | hidnplayr | 1720 | |
2402 | hidnplayr | 1721 | ret |
1159 | hidnplayr | 1722 | |
1514 | hidnplayr | 1723 | |
1724 | ;---------------------------------------------------- |
||
1159 | hidnplayr | 1725 | ; |
1514 | hidnplayr | 1726 | ; SOCKET_free |
1159 | hidnplayr | 1727 | ; |
1514 | hidnplayr | 1728 | ; Free socket data memory and remove socket from the list |
1729 | ; |
||
1730 | ; IN: eax = socket ptr |
||
1731 | ; OUT: / |
||
1732 | ; |
||
1733 | ;---------------------------------------------------- |
||
1734 | align 4 |
||
1735 | SOCKET_free: |
||
1159 | hidnplayr | 1736 | |
2402 | hidnplayr | 1737 | DEBUGF 1, "SOCKET_free: %x\n", eax |
1514 | hidnplayr | 1738 | |
2402 | hidnplayr | 1739 | call SOCKET_check |
1740 | jz .error |
||
1159 | hidnplayr | 1741 | |
2402 | hidnplayr | 1742 | push ebx |
1514 | hidnplayr | 1743 | |
2402 | hidnplayr | 1744 | pusha |
1745 | lea ecx, [eax + SOCKET.mutex] |
||
1746 | call mutex_lock |
||
1747 | popa |
||
1514 | hidnplayr | 1748 | |
2402 | hidnplayr | 1749 | cmp [eax + SOCKET.Domain], AF_INET4 |
1750 | jnz .no_tcp |
||
1529 | hidnplayr | 1751 | |
2402 | hidnplayr | 1752 | cmp [eax + SOCKET.Protocol], IP_PROTO_TCP |
1753 | jnz .no_tcp |
||
1754 | |||
1755 | mov ebx, eax |
||
1756 | stdcall kernel_free, [ebx + STREAM_SOCKET.rcv.start_ptr] |
||
1757 | stdcall kernel_free, [ebx + STREAM_SOCKET.snd.start_ptr] |
||
1758 | mov eax, ebx |
||
1536 | hidnplayr | 1759 | .no_tcp: |
1529 | hidnplayr | 1760 | |
2402 | hidnplayr | 1761 | push eax ; this will be passed to kernel_free |
1762 | mov ebx, [eax + SOCKET.NextPtr] |
||
1763 | mov eax, [eax + SOCKET.PrevPtr] |
||
1514 | hidnplayr | 1764 | |
2402 | hidnplayr | 1765 | DEBUGF 1, "SOCKET_free: linking socket %x to socket %x\n", eax, ebx |
1514 | hidnplayr | 1766 | |
2402 | hidnplayr | 1767 | test eax, eax |
1768 | jz @f |
||
1769 | mov [eax + SOCKET.NextPtr], ebx |
||
1514 | hidnplayr | 1770 | @@: |
1159 | hidnplayr | 1771 | |
2402 | hidnplayr | 1772 | test ebx, ebx |
1773 | jz @f |
||
1774 | mov [ebx + SOCKET.PrevPtr], eax |
||
1514 | hidnplayr | 1775 | @@: |
1249 | hidnplayr | 1776 | |
2402 | hidnplayr | 1777 | call kernel_free |
1778 | pop ebx |
||
1159 | hidnplayr | 1779 | |
2402 | hidnplayr | 1780 | DEBUGF 1, "SOCKET_free: success!\n" |
1514 | hidnplayr | 1781 | |
1159 | hidnplayr | 1782 | .error: |
2402 | hidnplayr | 1783 | ret |
1159 | hidnplayr | 1784 | |
1543 | hidnplayr | 1785 | ;------------------------------------ |
1786 | ; |
||
1787 | ; SOCKET_fork |
||
1788 | ; |
||
1789 | ; Create a child socket |
||
1790 | ; |
||
1533 | hidnplayr | 1791 | ; IN: socket nr in ebx |
1543 | hidnplayr | 1792 | ; OUT: child socket nr in eax |
1793 | ; |
||
1794 | ;----------------------------------- |
||
1529 | hidnplayr | 1795 | align 4 |
1796 | SOCKET_fork: |
||
1797 | |||
2402 | hidnplayr | 1798 | DEBUGF 1,"SOCKET_fork: %x\n", ebx |
1529 | hidnplayr | 1799 | |
1543 | hidnplayr | 1800 | ; Exit if backlog queue is full |
2402 | hidnplayr | 1801 | mov eax, [ebx + SOCKET_QUEUE_LOCATION + queue.size] |
1802 | cmp ax, [ebx + SOCKET.backlog] |
||
1803 | jae .fail |
||
1543 | hidnplayr | 1804 | |
1529 | hidnplayr | 1805 | ; Allocate new socket |
2402 | hidnplayr | 1806 | push ebx |
1807 | call SOCKET_alloc |
||
1808 | pop ebx |
||
1809 | jz .fail |
||
1529 | hidnplayr | 1810 | |
2402 | hidnplayr | 1811 | push eax |
1812 | mov esi, esp |
||
1813 | add_to_queue (ebx + SOCKET_QUEUE_LOCATION), MAX_backlog, 4, .fail2 |
||
1814 | pop eax |
||
1543 | hidnplayr | 1815 | |
1816 | ; Copy structure from current socket to new |
||
1817 | ; We start at PID to preserve the socket num, and the 2 pointers at beginning of socket |
||
2402 | hidnplayr | 1818 | lea esi, [ebx + SOCKET.PID] |
1819 | lea edi, [eax + SOCKET.PID] |
||
1820 | mov ecx, (SOCKET_QUEUE_LOCATION - SOCKET.PID + 3)/4 |
||
1821 | rep movsd |
||
1529 | hidnplayr | 1822 | |
2402 | hidnplayr | 1823 | and [eax + SOCKET.options], not SO_ACCEPTCON |
1529 | hidnplayr | 1824 | |
2402 | hidnplayr | 1825 | ret |
1529 | hidnplayr | 1826 | |
1543 | hidnplayr | 1827 | .fail2: |
2402 | hidnplayr | 1828 | add esp, 4+4+4 |
1543 | hidnplayr | 1829 | .fail: |
2402 | hidnplayr | 1830 | DEBUGF 1,"SOCKET_fork: failed\n" |
1831 | xor eax, eax |
||
1832 | ret |
||
1529 | hidnplayr | 1833 | |
1543 | hidnplayr | 1834 | |
1514 | hidnplayr | 1835 | ;--------------------------------------------------- |
1836 | ; |
||
1837 | ; SOCKET_num_to_ptr |
||
1838 | ; |
||
1159 | hidnplayr | 1839 | ; Get socket structure address by its number |
1840 | ; |
||
1514 | hidnplayr | 1841 | ; IN: ecx = socket number |
1533 | hidnplayr | 1842 | ; OUT: eax = 0 on error, socket ptr otherwise |
1514 | hidnplayr | 1843 | ; ZF = set on error |
1159 | hidnplayr | 1844 | ; |
1514 | hidnplayr | 1845 | ;--------------------------------------------------- |
1846 | align 4 |
||
1847 | SOCKET_num_to_ptr: |
||
1159 | hidnplayr | 1848 | |
2891 | hidnplayr | 1849 | DEBUGF 1,"SOCKET_num_to_ptr: num=%u ", ecx |
1514 | hidnplayr | 1850 | |
2402 | hidnplayr | 1851 | mov eax, net_sockets |
1514 | hidnplayr | 1852 | |
1159 | hidnplayr | 1853 | .next_socket: |
2402 | hidnplayr | 1854 | mov eax, [eax + SOCKET.NextPtr] |
1855 | or eax, eax |
||
1856 | jz .error |
||
1857 | cmp [eax + SOCKET.Number], ecx |
||
1858 | jne .next_socket |
||
1159 | hidnplayr | 1859 | |
2402 | hidnplayr | 1860 | test eax, eax |
1159 | hidnplayr | 1861 | |
2891 | hidnplayr | 1862 | DEBUGF 1,"ptr=%x\n", eax |
1863 | ret |
||
1864 | |||
1159 | hidnplayr | 1865 | .error: |
2891 | hidnplayr | 1866 | DEBUGF 1,"not found\n", eax |
2402 | hidnplayr | 1867 | ret |
1159 | hidnplayr | 1868 | |
1514 | hidnplayr | 1869 | |
1870 | ;--------------------------------------------------- |
||
1159 | hidnplayr | 1871 | ; |
1514 | hidnplayr | 1872 | ; SOCKET_ptr_to_num |
1159 | hidnplayr | 1873 | ; |
1514 | hidnplayr | 1874 | ; Get socket number by its address |
1875 | ; |
||
1876 | ; IN: eax = socket ptr |
||
1877 | ; OUT: eax = 0 on error, socket num otherwise |
||
1878 | ; ZF = set on error |
||
1879 | ; |
||
1880 | ;--------------------------------------------------- |
||
1881 | align 4 |
||
1882 | SOCKET_ptr_to_num: |
||
1883 | |||
2891 | hidnplayr | 1884 | DEBUGF 1,"SOCKET_ptr_to_num: ptr=%x ", eax |
1514 | hidnplayr | 1885 | |
2402 | hidnplayr | 1886 | call SOCKET_check |
1887 | jz .error |
||
1159 | hidnplayr | 1888 | |
2402 | hidnplayr | 1889 | mov eax, [eax + SOCKET.Number] |
1514 | hidnplayr | 1890 | |
2891 | hidnplayr | 1891 | DEBUGF 1,"num=%u\n", eax |
1892 | ret |
||
1514 | hidnplayr | 1893 | |
1894 | .error: |
||
2891 | hidnplayr | 1895 | DEBUGF 1,"not found\n", eax |
2402 | hidnplayr | 1896 | ret |
1514 | hidnplayr | 1897 | |
1898 | |||
1899 | ;--------------------------------------------------- |
||
1900 | ; |
||
1901 | ; SOCKET_check |
||
1902 | ; |
||
1903 | ; checks if the given value is really a socket ptr |
||
1904 | ; |
||
1905 | ; IN: eax = socket ptr |
||
1906 | ; OUT: eax = 0 on error, unchanged otherwise |
||
1907 | ; ZF = set on error |
||
1908 | ; |
||
1909 | ;--------------------------------------------------- |
||
1910 | align 4 |
||
1911 | SOCKET_check: |
||
1912 | |||
2402 | hidnplayr | 1913 | DEBUGF 1,"SOCKET_check: %x\n", eax |
1514 | hidnplayr | 1914 | |
2402 | hidnplayr | 1915 | push ebx |
1916 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1917 | |
1159 | hidnplayr | 1918 | .next_socket: |
2402 | hidnplayr | 1919 | mov ebx, [ebx + SOCKET.NextPtr] |
1920 | or ebx, ebx |
||
1921 | jz .done |
||
1922 | cmp ebx, eax |
||
1923 | jnz .next_socket |
||
1159 | hidnplayr | 1924 | |
1514 | hidnplayr | 1925 | .done: |
2402 | hidnplayr | 1926 | mov eax, ebx |
1927 | test eax, eax |
||
1928 | pop ebx |
||
1514 | hidnplayr | 1929 | |
2402 | hidnplayr | 1930 | ret |
1159 | hidnplayr | 1931 | |
1514 | hidnplayr | 1932 | |
1933 | |||
1934 | ;--------------------------------------------------- |
||
1935 | ; |
||
1936 | ; SOCKET_check_owner |
||
1937 | ; |
||
1938 | ; checks if the caller application owns the socket |
||
1939 | ; |
||
1940 | ; IN: eax = socket ptr |
||
1941 | ; OUT: ZF = true/false |
||
1942 | ; |
||
1943 | ;--------------------------------------------------- |
||
1944 | align 4 |
||
1945 | SOCKET_check_owner: |
||
1946 | |||
2402 | hidnplayr | 1947 | DEBUGF 1,"SOCKET_check_owner: %x\n", eax |
1514 | hidnplayr | 1948 | |
2402 | hidnplayr | 1949 | push ebx |
1950 | mov ebx, [TASK_BASE] |
||
1951 | mov ebx, [ecx + TASKDATA.pid] |
||
1952 | cmp [eax + SOCKET.PID], ebx |
||
1953 | pop ebx |
||
1514 | hidnplayr | 1954 | |
2402 | hidnplayr | 1955 | ret |
1514 | hidnplayr | 1956 | |
1957 | |||
1958 | |||
1959 | |||
1885 | hidnplayr | 1960 | ;------------------------------------------------------ |
1514 | hidnplayr | 1961 | ; |
1962 | ; SOCKET_process_end |
||
1963 | ; |
||
1964 | ; Kernel calls this function when a certain process ends |
||
1965 | ; This function will check if the process had any open sockets |
||
1966 | ; And update them accordingly |
||
1967 | ; |
||
2867 | hidnplayr | 1968 | ; IN: edx = pid |
1514 | hidnplayr | 1969 | ; OUT: / |
1970 | ; |
||
1971 | ;------------------------------------------------------ |
||
1972 | align 4 |
||
1973 | SOCKET_process_end: |
||
1974 | |||
2867 | hidnplayr | 1975 | DEBUGF 1,"SOCKET_process_end: %x\n", edx |
1514 | hidnplayr | 1976 | |
2402 | hidnplayr | 1977 | push ebx |
1978 | mov ebx, net_sockets |
||
1514 | hidnplayr | 1979 | |
1980 | .next_socket: |
||
2402 | hidnplayr | 1981 | mov ebx, [ebx + SOCKET.NextPtr] |
1514 | hidnplayr | 1982 | .test_socket: |
2402 | hidnplayr | 1983 | test ebx, ebx |
1984 | jz .done |
||
1514 | hidnplayr | 1985 | |
2867 | hidnplayr | 1986 | cmp [ebx + SOCKET.PID], edx |
2402 | hidnplayr | 1987 | jne .next_socket |
1514 | hidnplayr | 1988 | |
2891 | hidnplayr | 1989 | DEBUGF 1,"SOCKET_process_end: killing socket %x\n", ebx |
1514 | hidnplayr | 1990 | |
2402 | hidnplayr | 1991 | mov [ebx + SOCKET.PID], 0 |
1514 | hidnplayr | 1992 | |
2402 | hidnplayr | 1993 | cmp [ebx + SOCKET.Protocol], IP_PROTO_TCP |
1994 | je .tcp |
||
1514 | hidnplayr | 1995 | |
2629 | hidnplayr | 1996 | ; The socket is stateless, just kill it right away! |
1514 | hidnplayr | 1997 | |
2402 | hidnplayr | 1998 | mov eax, ebx |
1999 | mov ebx, [ebx + SOCKET.NextPtr] |
||
2000 | call SOCKET_free |
||
2001 | jmp .test_socket |
||
1514 | hidnplayr | 2002 | |
2003 | .tcp: |
||
2629 | hidnplayr | 2004 | push [ebx + SOCKET.NextPtr] |
2005 | mov eax, ebx |
||
2869 | hidnplayr | 2006 | call TCP_disconnect |
2629 | hidnplayr | 2007 | pop ebx |
2008 | jmp .test_socket |
||
1885 | hidnplayr | 2009 | |
1514 | hidnplayr | 2010 | .done: |
2402 | hidnplayr | 2011 | pop ebx |
1514 | hidnplayr | 2012 | |
2402 | hidnplayr | 2013 | ret |
1773 | hidnplayr | 2014 | |
2015 | |||
2016 | |||
2017 | |||
1885 | hidnplayr | 2018 | ;----------------------------------------------------------------- |
2019 | ; |
||
2020 | ; SOCKET_is_connecting |
||
2021 | ; |
||
2022 | ; IN: eax = socket ptr |
||
2023 | ; OUT: / |
||
2024 | ; |
||
2025 | ;----------------------------------------------------------------- |
||
1773 | hidnplayr | 2026 | |
1885 | hidnplayr | 2027 | align 4 |
2028 | SOCKET_is_connecting: |
||
1773 | hidnplayr | 2029 | |
2891 | hidnplayr | 2030 | DEBUGF 1,"SOCKET_is_connecting: %x\n", eax |
1773 | hidnplayr | 2031 | |
2402 | hidnplayr | 2032 | and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
2033 | or [eax + SOCKET.options], SS_ISCONNECTING |
||
1773 | hidnplayr | 2034 | |
2402 | hidnplayr | 2035 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 2036 | |
2037 | |||
2038 | |||
1773 | hidnplayr | 2039 | ;----------------------------------------------------------------- |
2040 | ; |
||
1885 | hidnplayr | 2041 | ; SOCKET_is_connected |
2042 | ; |
||
2043 | ; IN: eax = socket ptr |
||
2044 | ; OUT: / |
||
2045 | ; |
||
2046 | ;----------------------------------------------------------------- |
||
2047 | |||
2048 | align 4 |
||
2049 | SOCKET_is_connected: |
||
2050 | |||
2891 | hidnplayr | 2051 | DEBUGF 1,"SOCKET_is_connected: %x\n", eax |
1885 | hidnplayr | 2052 | |
2402 | hidnplayr | 2053 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING) |
2054 | or [eax + SOCKET.options], SS_ISCONNECTED |
||
1885 | hidnplayr | 2055 | |
2402 | hidnplayr | 2056 | jmp SOCKET_notify_owner |
1885 | hidnplayr | 2057 | |
2058 | |||
2059 | |||
2060 | |||
2061 | ;----------------------------------------------------------------- |
||
2062 | ; |
||
1773 | hidnplayr | 2063 | ; SOCKET_is_disconnecting |
2064 | ; |
||
2065 | ; IN: eax = socket ptr |
||
2066 | ; OUT: / |
||
2067 | ; |
||
2068 | ;----------------------------------------------------------------- |
||
2069 | |||
2070 | align 4 |
||
2071 | SOCKET_is_disconnecting: |
||
2072 | |||
2891 | hidnplayr | 2073 | DEBUGF 1,"SOCKET_is_disconnecting: %x\n", eax |
2074 | |||
2402 | hidnplayr | 2075 | and [eax + SOCKET.options], not (SS_ISCONNECTING) |
2076 | or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 2077 | |
2402 | hidnplayr | 2078 | jmp SOCKET_notify_owner |
1773 | hidnplayr | 2079 | |
2080 | |||
2081 | |||
2082 | ;----------------------------------------------------------------- |
||
2083 | ; |
||
2084 | ; SOCKET_is_disconnected |
||
2085 | ; |
||
2086 | ; IN: eax = socket ptr |
||
2087 | ; OUT: / |
||
2088 | ; |
||
2089 | ;----------------------------------------------------------------- |
||
2090 | |||
2091 | align 4 |
||
2092 | SOCKET_is_disconnected: |
||
2093 | |||
2891 | hidnplayr | 2094 | DEBUGF 1,"SOCKET_is_disconnected: %x\n", eax |
2095 | |||
2402 | hidnplayr | 2096 | and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING) |
2097 | or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE |
||
1773 | hidnplayr | 2098 | |
2402 | hidnplayr | 2099 | jmp SOCKET_notify_owner |
1774 | hidnplayr | 2100 | |
2101 | |||
2102 | ;----------------------------------------------------------------- |
||
2103 | ; |
||
2104 | ; SOCKET_cant_recv_more |
||
2105 | ; |
||
2106 | ; IN: eax = socket ptr |
||
2107 | ; OUT: / |
||
2108 | ; |
||
2109 | ;----------------------------------------------------------------- |
||
2110 | |||
2111 | align 4 |
||
2112 | SOCKET_cant_recv_more: |
||
2113 | |||
2891 | hidnplayr | 2114 | DEBUGF 1,"SOCKET_cant_recv_more: %x\n", eax |
2115 | |||
2402 | hidnplayr | 2116 | or [eax + SOCKET.options], SS_CANTRCVMORE |
1885 | hidnplayr | 2117 | |
2402 | hidnplayr | 2118 | ret |
1831 | hidnplayr | 2119 | |
2120 | |||
2121 | |||
2122 | ;----------------------------------------------------------------- |
||
2123 | ; |
||
1885 | hidnplayr | 2124 | ; SOCKET_cant_send_more |
1831 | hidnplayr | 2125 | ; |
2126 | ; IN: eax = socket ptr |
||
2127 | ; OUT: / |
||
2128 | ; |
||
2129 | ;----------------------------------------------------------------- |
||
2130 | |||
2131 | align 4 |
||
1885 | hidnplayr | 2132 | SOCKET_cant_send_more: |
1831 | hidnplayr | 2133 | |
2891 | hidnplayr | 2134 | DEBUGF 1,"SOCKET_cant_send_more: %x\n", eax |
2135 | |||
2402 | hidnplayr | 2136 | or [eax + SOCKET.options], SS_CANTSENDMORE |
1831 | hidnplayr | 2137 | |
2402 | hidnplayr | 2138 | ret |