Rev 3600 | Rev 3643 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
||
4 | ;; Distributed under terms of the GNU General Public License ;; |
||
5 | ;; ;; |
||
6 | ;; STACK.INC ;; |
||
7 | ;; ;; |
||
8 | ;; TCP/IP stack for KolibriOS ;; |
||
9 | ;; ;; |
||
10 | ;; Written by hidnplayr@kolibrios.org ;; |
||
11 | ;; ;; |
||
12 | ;; Some parts of code are based on the work of: ;; |
||
13 | ;; Mike Hibbett (menuetos network stack) ;; |
||
14 | ;; Eugen Brasoveanu (solar os network stack and drivers) ;; |
||
15 | ;; mike.dld (kolibrios socket code) ;; |
||
16 | ;; ;; |
||
17 | ;; TCP part is based on 4.4BSD ;; |
||
18 | ;; ;; |
||
19 | ;; GNU GENERAL PUBLIC LICENSE ;; |
||
20 | ;; Version 2, June 1991 ;; |
||
21 | ;; ;; |
||
22 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
23 | |||
24 | $Revision: 3523 $ |
||
25 | |||
26 | uglobal |
||
27 | net_10ms dd ? |
||
28 | net_tmr_count dw ? |
||
29 | endg |
||
30 | |||
3556 | hidnplayr | 31 | DEBUG_NETWORK_ERROR = 1 |
32 | DEBUG_NETWORK_VERBOSE = 0 |
||
33 | |||
3600 | hidnplayr | 34 | NET_DEVICES_MAX = 16 |
3545 | hidnplayr | 35 | ARP_BLOCK = 1 ; true or false |
36 | |||
3600 | hidnplayr | 37 | EPHEMERAL_PORT_MIN = 49152 |
38 | EPHEMERAL_PORT_MAX = 61000 |
||
3545 | hidnplayr | 39 | MIN_EPHEMERAL_PORT_N = 0x00C0 ; same in Network byte order (FIXME) |
40 | MAX_EPHEMERAL_PORT_N = 0x48EE ; same in Network byte order (FIXME) |
||
41 | |||
42 | ; Ethernet protocol numbers |
||
3600 | hidnplayr | 43 | ETHER_PROTO_ARP = 0x0608 |
44 | ETHER_PROTO_IPv4 = 0x0008 |
||
45 | ETHER_PROTO_IPv6 = 0xDD86 |
||
46 | ETHER_PROTO_PPP_DISCOVERY = 0x6388 |
||
47 | ETHER_PROTO_PPP_SESSION = 0x6488 |
||
3545 | hidnplayr | 48 | |
3600 | hidnplayr | 49 | ; Internet protocol numbers |
50 | IP_PROTO_IP = 0 |
||
51 | IP_PROTO_ICMP = 1 |
||
52 | IP_PROTO_TCP = 6 |
||
53 | IP_PROTO_UDP = 17 |
||
54 | |||
3545 | hidnplayr | 55 | ; PPP protocol numbers |
3600 | hidnplayr | 56 | PPP_PROTO_IPv4 = 0x2100 |
57 | PPP_PROTO_IPV6 = 0x5780 |
||
58 | PPP_PROTO_ETHERNET = 666 ; FIXME |
||
3545 | hidnplayr | 59 | |
60 | ;Protocol family |
||
61 | AF_UNSPEC = 0 |
||
62 | AF_LOCAL = 1 |
||
63 | AF_INET4 = 2 |
||
64 | AF_INET6 = 10 |
||
3600 | hidnplayr | 65 | AF_PPP = 777 ; FIXME |
3545 | hidnplayr | 66 | |
67 | ; Socket types |
||
68 | SOCK_STREAM = 1 |
||
69 | SOCK_DGRAM = 2 |
||
70 | SOCK_RAW = 3 |
||
71 | |||
72 | ; Socket options |
||
73 | SO_ACCEPTCON = 1 shl 0 |
||
74 | SO_BROADCAST = 1 shl 1 |
||
75 | SO_DEBUG = 1 shl 2 |
||
76 | SO_DONTROUTE = 1 shl 3 |
||
77 | SO_KEEPALIVE = 1 shl 4 |
||
78 | SO_OOBINLINE = 1 shl 5 |
||
79 | SO_REUSEADDR = 1 shl 6 |
||
80 | SO_REUSEPORT = 1 shl 7 |
||
81 | SO_USELOOPBACK = 1 shl 8 |
||
82 | SO_BINDTODEVICE = 1 shl 9 |
||
83 | |||
3600 | hidnplayr | 84 | SO_BLOCK = 1 shl 10 ; TO BE REMOVED |
3545 | hidnplayr | 85 | SO_NONBLOCK = 1 shl 31 |
86 | |||
87 | ; Socket flags for user calls |
||
88 | MSG_PEEK = 0x02 |
||
89 | MSG_DONTWAIT = 0x40 |
||
90 | |||
91 | ; Socket level |
||
92 | SOL_SOCKET = 0 |
||
93 | |||
94 | |||
95 | ; Socket States |
||
3600 | hidnplayr | 96 | SS_NOFDREF = 0x0001 ; no file table ref any more |
97 | SS_ISCONNECTED = 0x0002 ; socket connected to a peer |
||
98 | SS_ISCONNECTING = 0x0004 ; in process of connecting to peer |
||
99 | SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting |
||
100 | SS_CANTSENDMORE = 0x0010 ; can't send more data to peer |
||
101 | SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer |
||
102 | SS_RCVATMARK = 0x0040 ; at mark on input |
||
103 | SS_ISABORTING = 0x0080 ; aborting fd references - close() |
||
104 | SS_RESTARTSYS = 0x0100 ; restart blocked system calls |
||
105 | SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer |
||
3545 | hidnplayr | 106 | |
3600 | hidnplayr | 107 | SS_ASYNC = 0x0100 ; async i/o notify |
108 | SS_ISCONFIRMING = 0x0200 ; deciding to accept connection req |
||
3545 | hidnplayr | 109 | SS_MORETOCOME = 0x0400 |
110 | |||
111 | SS_BLOCKED = 0x8000 |
||
112 | |||
113 | |||
3600 | hidnplayr | 114 | SOCKET_MAXDATA = 4096*32 ; must be 4096*(power of 2) where 'power of 2' is at least 8 |
115 | MAX_backlog = 20 ; maximum backlog for stream sockets |
||
3545 | hidnplayr | 116 | |
117 | ; Error Codes |
||
118 | ENOBUFS = 55 |
||
119 | ECONNREFUSED = 61 |
||
120 | ECONNRESET = 52 |
||
121 | ETIMEDOUT = 60 |
||
122 | ECONNABORTED = 53 |
||
123 | |||
124 | ; Api protocol numbers |
||
125 | API_ETH = 0 |
||
126 | API_IPv4 = 1 |
||
127 | API_ICMP = 2 |
||
128 | API_UDP = 3 |
||
129 | API_TCP = 4 |
||
130 | API_ARP = 5 |
||
131 | API_PPPOE = 6 |
||
132 | API_IPv6 = 7 |
||
133 | |||
3600 | hidnplayr | 134 | ; Network device types |
135 | NET_DEVICE_LOOPBACK = 0 |
||
136 | NET_DEVICE_ETH = 1 |
||
137 | NET_DEVICE_SLIP = 2 |
||
138 | |||
139 | ; Network link types (link protocols) |
||
140 | NET_LINK_LOOPBACK = 0 ;;; Really a link type? |
||
141 | NET_LINK_MAC = 1 ; Media access control (ethernet, isdn, ...) |
||
142 | NET_LINK_PPP = 2 ; Point to Point Protocol (PPPoE, ...) |
||
143 | NET_LINK_IEEE802.11 = 3 ; IEEE 802.11 (WiFi) |
||
144 | |||
145 | ; Hardware acceleration bits |
||
3545 | hidnplayr | 146 | HWACC_TCP_IPv4 = 1 shl 0 |
147 | |||
148 | struct NET_DEVICE |
||
149 | |||
3600 | hidnplayr | 150 | device_type dd ? ; Type field |
3545 | hidnplayr | 151 | mtu dd ? ; Maximal Transmission Unit |
152 | name dd ? ; Ptr to 0 terminated string |
||
153 | |||
154 | unload dd ? ; Ptrs to driver functions |
||
155 | reset dd ? ; |
||
156 | transmit dd ? ; |
||
157 | |||
158 | bytes_tx dq ? ; Statistics, updated by the driver |
||
159 | bytes_rx dq ? ; |
||
160 | packets_tx dd ? ; |
||
161 | packets_rx dd ? ; |
||
162 | |||
3600 | hidnplayr | 163 | link_state dd ? ; link state (0 = no link) |
3545 | hidnplayr | 164 | hwacc dd ? ; bitmask stating enabled HW accelerations (offload engines) |
165 | |||
166 | ends |
||
167 | |||
168 | |||
169 | ; Exactly as it says.. |
||
170 | macro pseudo_random reg { |
||
171 | add reg, [esp] |
||
172 | rol reg, 5 |
||
173 | xor reg, [timer_ticks] |
||
174 | ; add reg, [CPU_FREQ] |
||
175 | imul reg, 214013 |
||
176 | xor reg, 0xdeadbeef |
||
177 | rol reg, 9 |
||
178 | } |
||
179 | |||
180 | ; Network to Hardware byte order (dword) |
||
181 | macro ntohd reg { |
||
182 | |||
183 | rol word reg, 8 |
||
184 | rol dword reg, 16 |
||
185 | rol word reg , 8 |
||
186 | |||
187 | } |
||
188 | |||
189 | ; Network to Hardware byte order (word) |
||
190 | macro ntohw reg { |
||
191 | |||
192 | rol word reg, 8 |
||
193 | |||
194 | } |
||
195 | |||
196 | |||
197 | include "queue.inc" |
||
198 | |||
199 | include "loopback.inc" |
||
200 | include "ethernet.inc" |
||
201 | |||
202 | include "PPPoE.inc" |
||
203 | |||
204 | include "ARP.inc" |
||
205 | include "IPv4.inc" |
||
206 | include "IPv6.inc" |
||
207 | |||
208 | include "icmp.inc" |
||
209 | include "udp.inc" |
||
210 | include "tcp.inc" |
||
211 | |||
212 | include "socket.inc" |
||
213 | |||
214 | |||
215 | |||
216 | align 4 |
||
217 | uglobal |
||
218 | |||
219 | NET_RUNNING dd ? |
||
3600 | hidnplayr | 220 | NET_DRV_LIST rd NET_DEVICES_MAX |
3545 | hidnplayr | 221 | |
222 | endg |
||
223 | |||
224 | |||
225 | ;----------------------------------------------------------------- |
||
226 | ; |
||
227 | ; stack_init |
||
228 | ; |
||
229 | ; This function calls all network init procedures |
||
230 | ; |
||
231 | ; IN: / |
||
232 | ; OUT: / |
||
233 | ; |
||
234 | ;----------------------------------------------------------------- |
||
235 | align 4 |
||
236 | stack_init: |
||
237 | |||
238 | ; Init the network drivers list |
||
239 | xor eax, eax |
||
240 | mov edi, NET_RUNNING |
||
3600 | hidnplayr | 241 | mov ecx, (NET_DEVICES_MAX + 2) |
3545 | hidnplayr | 242 | rep stosd |
243 | |||
244 | PPPoE_init |
||
245 | |||
246 | IPv4_init |
||
247 | ; IPv6_init |
||
248 | ICMP_init |
||
249 | |||
250 | ARP_init |
||
251 | UDP_init |
||
252 | TCP_init |
||
253 | |||
254 | SOCKET_init |
||
255 | |||
3601 | hidnplayr | 256 | LOOP_init |
257 | |||
3545 | hidnplayr | 258 | mov [net_tmr_count], 0 |
259 | |||
260 | ret |
||
261 | |||
262 | |||
263 | |||
264 | ; Wakeup every tick. |
||
265 | proc stack_handler_has_work? |
||
266 | |||
267 | mov eax, [timer_ticks] |
||
268 | cmp eax, [net_10ms] |
||
269 | |||
270 | ret |
||
271 | endp |
||
272 | |||
273 | |||
274 | ;----------------------------------------------------------------- |
||
275 | ; |
||
276 | ; stack_handler |
||
277 | ; |
||
278 | ; This function is called in kernel loop |
||
279 | ; |
||
280 | ; IN: / |
||
281 | ; OUT: / |
||
282 | ; |
||
283 | ;----------------------------------------------------------------- |
||
284 | align 4 |
||
285 | stack_handler: |
||
286 | |||
287 | ; Test for 10ms tick |
||
288 | mov eax, [timer_ticks] |
||
289 | cmp eax, [net_10ms] |
||
290 | je .exit |
||
291 | mov [net_10ms], eax |
||
292 | |||
293 | cmp [NET_RUNNING], 0 |
||
294 | je .exit |
||
295 | |||
296 | test [net_10ms], 0x0f ; 160ms |
||
297 | jnz .exit |
||
298 | |||
299 | TCP_timer_160ms |
||
300 | |||
301 | test [net_10ms], 0x3f ; 640ms |
||
302 | jnz .exit |
||
303 | |||
304 | TCP_timer_640ms |
||
305 | ARP_decrease_entry_ttls |
||
306 | IPv4_decrease_fragment_ttls |
||
307 | |||
308 | .exit: |
||
309 | ret |
||
310 | |||
311 | |||
312 | |||
313 | align 4 |
||
314 | NET_link_changed: |
||
315 | |||
3601 | hidnplayr | 316 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 317 | |
318 | align 4 |
||
319 | NET_send_event: |
||
320 | |||
3556 | hidnplayr | 321 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_send_event\n" |
3545 | hidnplayr | 322 | |
323 | ; Send event to all applications |
||
324 | push edi ecx |
||
325 | mov edi, SLOT_BASE |
||
326 | mov ecx, [TASK_COUNT] |
||
327 | .loop: |
||
328 | add edi, 256 |
||
329 | or [edi + APPDATA.event_mask], EVENT_NETWORK2 |
||
330 | loop .loop |
||
331 | pop ecx edi |
||
332 | |||
333 | ret |
||
334 | |||
335 | |||
336 | |||
337 | ;----------------------------------------------------------------- |
||
338 | ; |
||
339 | ; NET_add_device: |
||
340 | ; |
||
341 | ; This function is called by the network drivers, |
||
342 | ; to register each running NIC to the kernel |
||
343 | ; |
||
344 | ; IN: Pointer to device structure in ebx |
||
345 | ; OUT: Device num in eax, -1 on error |
||
346 | ; |
||
347 | ;----------------------------------------------------------------- |
||
348 | align 4 |
||
349 | NET_add_device: |
||
350 | |||
3556 | hidnplayr | 351 | DEBUGF DEBUG_NETWORK_VERBOSE, "NET_Add_Device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 352 | |
3600 | hidnplayr | 353 | cmp [NET_RUNNING], NET_DEVICES_MAX |
3545 | hidnplayr | 354 | jae .error |
355 | |||
356 | ;---------------------------------- |
||
357 | ; Check if device is already listed |
||
358 | mov eax, ebx |
||
3600 | hidnplayr | 359 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
3545 | hidnplayr | 360 | mov edi, NET_DRV_LIST |
361 | |||
362 | repne scasd ; See if device is already in the list |
||
363 | jz .error |
||
364 | |||
365 | ;---------------------------- |
||
366 | ; Find empty slot in the list |
||
367 | xor eax, eax |
||
3600 | hidnplayr | 368 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 369 | mov edi, NET_DRV_LIST |
370 | |||
371 | repne scasd |
||
372 | jnz .error |
||
373 | |||
374 | sub edi, 4 |
||
375 | |||
376 | ;----------------------------- |
||
377 | ; Add device to the found slot |
||
378 | mov [edi], ebx ; add device to list |
||
379 | |||
380 | mov eax, edi ; Calculate device number in eax |
||
381 | sub eax, NET_DRV_LIST |
||
382 | shr eax, 2 |
||
383 | |||
384 | inc [NET_RUNNING] ; Indicate that one more network device is up and running |
||
385 | |||
386 | call NET_send_event |
||
387 | |||
3556 | hidnplayr | 388 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 389 | ret |
390 | |||
391 | .error: |
||
392 | or eax, -1 |
||
3556 | hidnplayr | 393 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 394 | ret |
395 | |||
396 | |||
397 | |||
398 | ;----------------------------------------------------------------- |
||
399 | ; |
||
400 | ; NET_Remove_Device: |
||
401 | ; |
||
3601 | hidnplayr | 402 | ; This function is called by network drivers, |
3545 | hidnplayr | 403 | ; to unregister network devices from the kernel |
404 | ; |
||
405 | ; IN: Pointer to device structure in ebx |
||
406 | ; OUT: eax: -1 on error |
||
407 | ; |
||
408 | ;----------------------------------------------------------------- |
||
409 | align 4 |
||
410 | NET_remove_device: |
||
411 | |||
412 | cmp [NET_RUNNING], 0 |
||
413 | je .error |
||
414 | |||
415 | ;---------------------------- |
||
416 | ; Find the driver in the list |
||
417 | |||
418 | mov eax, ebx |
||
3600 | hidnplayr | 419 | mov ecx, NET_DEVICES_MAX |
3601 | hidnplayr | 420 | mov edi, NET_DRV_LIST |
3545 | hidnplayr | 421 | |
422 | repne scasd |
||
423 | jnz .error |
||
424 | |||
425 | ;------------------------ |
||
426 | ; Remove it from the list |
||
427 | |||
428 | xor eax, eax |
||
429 | mov dword [edi-4], eax |
||
3601 | hidnplayr | 430 | dec [NET_RUNNING] |
3545 | hidnplayr | 431 | |
432 | call NET_send_event |
||
433 | |||
3601 | hidnplayr | 434 | xor eax, eax |
3545 | hidnplayr | 435 | ret |
436 | |||
437 | .error: |
||
438 | or eax, -1 |
||
439 | ret |
||
440 | |||
441 | |||
442 | |||
443 | ;----------------------------------------------------------------- |
||
444 | ; |
||
445 | ; NET_ptr_to_num |
||
446 | ; |
||
447 | ; IN: ebx = ptr to device struct |
||
448 | ; OUT: edi = -1 on error, device number otherwise |
||
449 | ; |
||
450 | ;----------------------------------------------------------------- |
||
451 | align 4 |
||
452 | NET_ptr_to_num: |
||
453 | push ecx |
||
454 | |||
3600 | hidnplayr | 455 | mov ecx, NET_DEVICES_MAX |
3545 | hidnplayr | 456 | mov edi, NET_DRV_LIST |
457 | |||
458 | .loop: |
||
459 | cmp ebx, [edi] |
||
460 | jz .found |
||
461 | add edi, 4 |
||
462 | dec ecx |
||
463 | jnz .loop |
||
464 | |||
465 | ; repnz scasd could work too if eax is used instead of ebx! |
||
466 | |||
467 | or edi, -1 |
||
468 | |||
469 | pop ecx |
||
470 | ret |
||
471 | |||
472 | .found: |
||
473 | sub edi, NET_DRV_LIST |
||
474 | shr edi, 2 |
||
475 | |||
476 | pop ecx |
||
477 | ret |
||
478 | |||
479 | ;----------------------------------------------------------------- |
||
480 | ; |
||
481 | ; checksum_1 |
||
482 | ; |
||
483 | ; This is the first of two functions needed to calculate a checksum. |
||
484 | ; |
||
485 | ; IN: edx = start offset for semi-checksum |
||
486 | ; esi = pointer to data |
||
487 | ; ecx = data size |
||
488 | ; OUT: edx = semi-checksum |
||
489 | ; |
||
490 | ; |
||
491 | ; Code was optimized by diamond |
||
492 | ; |
||
493 | ;----------------------------------------------------------------- |
||
494 | align 4 |
||
495 | checksum_1: |
||
496 | |||
497 | shr ecx, 1 |
||
498 | pushf |
||
499 | jz .no_2 |
||
500 | |||
501 | shr ecx, 1 |
||
502 | pushf |
||
503 | jz .no_4 |
||
504 | |||
505 | shr ecx, 1 |
||
506 | pushf |
||
507 | jz .no_8 |
||
508 | |||
509 | .loop: |
||
510 | add dl, [esi+1] |
||
511 | adc dh, [esi+0] |
||
512 | |||
513 | adc dl, [esi+3] |
||
514 | adc dh, [esi+2] |
||
515 | |||
516 | adc dl, [esi+5] |
||
517 | adc dh, [esi+4] |
||
518 | |||
519 | adc dl, [esi+7] |
||
520 | adc dh, [esi+6] |
||
521 | |||
522 | adc edx, 0 |
||
523 | add esi, 8 |
||
524 | |||
525 | dec ecx |
||
526 | jnz .loop |
||
527 | |||
528 | adc edx, 0 |
||
529 | |||
530 | .no_8: |
||
531 | popf |
||
532 | jnc .no_4 |
||
533 | |||
534 | add dl, [esi+1] |
||
535 | adc dh, [esi+0] |
||
536 | |||
537 | adc dl, [esi+3] |
||
538 | adc dh, [esi+2] |
||
539 | |||
540 | adc edx, 0 |
||
541 | add esi, 4 |
||
542 | |||
543 | .no_4: |
||
544 | popf |
||
545 | jnc .no_2 |
||
546 | |||
547 | add dl, [esi+1] |
||
548 | adc dh, [esi+0] |
||
549 | |||
550 | adc edx, 0 |
||
551 | inc esi |
||
552 | inc esi |
||
553 | |||
554 | .no_2: |
||
555 | popf |
||
556 | jnc .end |
||
557 | |||
558 | add dh, [esi+0] |
||
559 | adc edx, 0 |
||
560 | .end: |
||
561 | ret |
||
562 | |||
563 | ;----------------------------------------------------------------- |
||
564 | ; |
||
565 | ; checksum_2 |
||
566 | ; |
||
567 | ; This function calculates the final ip/tcp/udp checksum for you |
||
568 | ; |
||
569 | ; IN: edx = semi-checksum |
||
570 | ; OUT: dx = checksum (in INET byte order) |
||
571 | ; |
||
572 | ;----------------------------------------------------------------- |
||
573 | align 4 |
||
574 | checksum_2: |
||
575 | |||
576 | mov ecx, edx |
||
577 | shr ecx, 16 |
||
578 | and edx, 0xffff |
||
579 | add edx, ecx |
||
580 | |||
581 | mov ecx, edx |
||
582 | shr ecx, 16 |
||
583 | add dx, cx |
||
584 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
585 | not dx |
||
586 | jnz .not_zero |
||
587 | dec dx |
||
588 | .not_zero: |
||
589 | xchg dl, dh |
||
590 | |||
3556 | hidnplayr | 591 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 592 | |
593 | ret |
||
594 | |||
595 | |||
596 | |||
597 | ;---------------------------------------------------------------- |
||
598 | ; |
||
3601 | hidnplayr | 599 | ; System function to work with network devices (74) |
3545 | hidnplayr | 600 | ; |
601 | ;---------------------------------------------------------------- |
||
602 | align 4 |
||
3601 | hidnplayr | 603 | sys_network: |
3545 | hidnplayr | 604 | |
605 | cmp ebx, -1 |
||
606 | jne @f |
||
607 | |||
608 | mov eax, [NET_RUNNING] |
||
3601 | hidnplayr | 609 | mov [esp+32], eax |
610 | ret |
||
3545 | hidnplayr | 611 | |
612 | @@: |
||
3600 | hidnplayr | 613 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 614 | jae .doesnt_exist |
615 | |||
616 | mov esi, ebx |
||
617 | and esi, 0x0000ff00 |
||
618 | shr esi, 6 |
||
619 | |||
620 | cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
621 | je .doesnt_exist |
||
622 | |||
623 | mov eax, [esi + NET_DRV_LIST] |
||
624 | |||
625 | and ebx, 0x000000ff |
||
626 | cmp ebx, .number |
||
627 | ja .doesnt_exist |
||
628 | jmp dword [.table + 4*ebx] |
||
629 | |||
630 | .table: |
||
631 | dd .get_type ; 0 |
||
632 | dd .get_dev_name ; 1 |
||
633 | dd .reset ; 2 |
||
634 | dd .stop ; 3 |
||
635 | dd .get_ptr ; 4 |
||
636 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 637 | |
638 | dd .packets_tx ; 6 |
||
639 | dd .packets_rx ; 7 |
||
640 | dd .bytes_tx ; 8 |
||
641 | dd .bytes_rx ; 9 |
||
642 | dd .state ; 10 |
||
3545 | hidnplayr | 643 | .number = ($ - .table) / 4 - 1 |
644 | |||
3601 | hidnplayr | 645 | .get_type: |
3600 | hidnplayr | 646 | mov eax, [eax + NET_DEVICE.device_type] |
3601 | hidnplayr | 647 | mov [esp+32], eax |
648 | ret |
||
3545 | hidnplayr | 649 | |
3601 | hidnplayr | 650 | .get_dev_name: |
3545 | hidnplayr | 651 | mov esi, [eax + NET_DEVICE.name] |
652 | mov edi, ecx |
||
653 | |||
654 | mov ecx, 64/4 ; max length |
||
655 | rep movsd |
||
656 | |||
657 | xor eax, eax |
||
3601 | hidnplayr | 658 | mov [esp+32], eax |
659 | ret |
||
3545 | hidnplayr | 660 | |
3601 | hidnplayr | 661 | .reset: |
3545 | hidnplayr | 662 | call [eax + NET_DEVICE.reset] |
3601 | hidnplayr | 663 | mov [esp+32], eax |
664 | ret |
||
3545 | hidnplayr | 665 | |
3601 | hidnplayr | 666 | .stop: |
3545 | hidnplayr | 667 | call [eax + NET_DEVICE.unload] |
3601 | hidnplayr | 668 | mov [esp+32], eax |
669 | ret |
||
3545 | hidnplayr | 670 | |
671 | |||
3601 | hidnplayr | 672 | .get_ptr: |
673 | mov [esp+32], eax |
||
674 | ret |
||
3545 | hidnplayr | 675 | |
676 | |||
3601 | hidnplayr | 677 | .get_drv_name: |
678 | xor eax, eax |
||
679 | mov [esp+32], eax |
||
680 | ret |
||
3545 | hidnplayr | 681 | |
3601 | hidnplayr | 682 | .packets_tx: |
683 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
684 | mov [esp+32], eax |
||
685 | ret |
||
3545 | hidnplayr | 686 | |
3601 | hidnplayr | 687 | .packets_rx: |
688 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
689 | mov [esp+32], eax |
||
690 | ret |
||
3545 | hidnplayr | 691 | |
3601 | hidnplayr | 692 | .bytes_tx: |
693 | mov ebx, dword [eax + NET_DEVICE.bytes_tx + 4] |
||
694 | mov [esp+20], ebx |
||
695 | mov eax, dword [eax + NET_DEVICE.bytes_tx] |
||
696 | mov [esp+32], eax |
||
697 | ret |
||
3545 | hidnplayr | 698 | |
3601 | hidnplayr | 699 | .bytes_rx: |
700 | mov ebx, dword [eax + NET_DEVICE.bytes_rx + 4] |
||
701 | mov [esp+20], ebx |
||
702 | mov eax, dword [eax + NET_DEVICE.bytes_rx] |
||
703 | mov [esp+32], eax |
||
704 | ret |
||
3545 | hidnplayr | 705 | |
3601 | hidnplayr | 706 | .state: |
707 | mov eax, [eax + NET_DEVICE.link_state] |
||
3545 | hidnplayr | 708 | mov [esp+32], eax |
709 | ret |
||
710 | |||
711 | |||
3601 | hidnplayr | 712 | .doesnt_exist: |
713 | mov dword[esp+32], -1 |
||
714 | ret |
||
715 | |||
716 | |||
717 | |||
3545 | hidnplayr | 718 | ;---------------------------------------------------------------- |
719 | ; |
||
720 | ; System function to work with protocols (76) |
||
721 | ; |
||
722 | ;---------------------------------------------------------------- |
||
723 | align 4 |
||
724 | sys_protocols: |
||
3600 | hidnplayr | 725 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 726 | jae .doesnt_exist |
727 | |||
728 | mov esi, ebx |
||
729 | and esi, 0x0000ff00 |
||
730 | shr esi, 6 ; now we have the device num * 4 in esi |
||
731 | cmp [esi + NET_DRV_LIST], 0 ; check if driver is running |
||
732 | je .doesnt_exist |
||
733 | |||
734 | push .return ; return address (we will be using jumps instead of calls) |
||
735 | |||
736 | mov eax, ebx ; set ax to protocol number |
||
737 | shr eax, 16 ; |
||
738 | |||
739 | cmp ax, API_ETH |
||
740 | je ETH_api |
||
741 | |||
742 | cmp ax, API_IPv4 |
||
743 | je IPv4_api |
||
744 | |||
745 | cmp ax, API_ICMP |
||
746 | je ICMP_api |
||
747 | |||
748 | cmp ax, API_UDP |
||
749 | je UDP_api |
||
750 | |||
751 | cmp ax, API_TCP |
||
752 | je TCP_api |
||
753 | |||
754 | cmp ax, API_ARP |
||
755 | je ARP_api |
||
756 | |||
757 | cmp ax, API_PPPOE |
||
758 | je PPPoE_api |
||
759 | |||
760 | cmp ax, API_IPv6 |
||
761 | je IPv6_api |
||
762 | |||
763 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
764 | |||
765 | .doesnt_exist: |
||
766 | mov eax, -1 |
||
767 | |||
768 | .return: |
||
769 | mov [esp+28+4], eax ; return eax value to the program |
||
770 | ret |