Rev 9917 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
10051 | ace_dent | 3 | ;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;; |
3545 | hidnplayr | 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 | |||
25 | uglobal |
||
26 | net_10ms dd ? |
||
27 | net_tmr_count dw ? |
||
28 | endg |
||
29 | |||
3556 | hidnplayr | 30 | DEBUG_NETWORK_ERROR = 1 |
4388 | hidnplayr | 31 | DEBUG_NETWORK_VERBOSE = 0 |
9017 | hidnplayr | 32 | NETWORK_SANITY_CHECKS = 1 |
3556 | hidnplayr | 33 | |
3600 | hidnplayr | 34 | NET_DEVICES_MAX = 16 |
5528 | hidnplayr | 35 | NET_BUFFERS = 512 |
36 | NET_BUFFER_SIZE = 2048 |
||
3545 | hidnplayr | 37 | ARP_BLOCK = 1 ; true or false |
38 | |||
3600 | hidnplayr | 39 | EPHEMERAL_PORT_MIN = 49152 |
40 | EPHEMERAL_PORT_MAX = 61000 |
||
3545 | hidnplayr | 41 | MIN_EPHEMERAL_PORT_N = 0x00C0 ; same in Network byte order (FIXME) |
42 | MAX_EPHEMERAL_PORT_N = 0x48EE ; same in Network byte order (FIXME) |
||
43 | |||
44 | ; Ethernet protocol numbers |
||
3600 | hidnplayr | 45 | ETHER_PROTO_ARP = 0x0608 |
46 | ETHER_PROTO_IPv4 = 0x0008 |
||
47 | ETHER_PROTO_IPv6 = 0xDD86 |
||
48 | ETHER_PROTO_PPP_DISCOVERY = 0x6388 |
||
49 | ETHER_PROTO_PPP_SESSION = 0x6488 |
||
3545 | hidnplayr | 50 | |
3600 | hidnplayr | 51 | ; Internet protocol numbers |
52 | IP_PROTO_IP = 0 |
||
53 | IP_PROTO_ICMP = 1 |
||
54 | IP_PROTO_TCP = 6 |
||
55 | IP_PROTO_UDP = 17 |
||
5842 | hidnplayr | 56 | IP_PROTO_RAW = 255 |
3600 | hidnplayr | 57 | |
5842 | hidnplayr | 58 | ; IP options |
59 | IP_TOS = 1 |
||
60 | IP_TTL = 2 |
||
61 | IP_HDRINCL = 3 |
||
62 | |||
3545 | hidnplayr | 63 | ; PPP protocol numbers |
3600 | hidnplayr | 64 | PPP_PROTO_IPv4 = 0x2100 |
65 | PPP_PROTO_IPV6 = 0x5780 |
||
66 | PPP_PROTO_ETHERNET = 666 ; FIXME |
||
3545 | hidnplayr | 67 | |
68 | ;Protocol family |
||
69 | AF_UNSPEC = 0 |
||
70 | AF_LOCAL = 1 |
||
71 | AF_INET4 = 2 |
||
72 | AF_INET6 = 10 |
||
3600 | hidnplayr | 73 | AF_PPP = 777 ; FIXME |
3545 | hidnplayr | 74 | |
75 | ; Socket types |
||
76 | SOCK_STREAM = 1 |
||
77 | SOCK_DGRAM = 2 |
||
78 | SOCK_RAW = 3 |
||
79 | |||
5842 | hidnplayr | 80 | ; Socket level |
81 | SOL_SOCKET = 0xffff |
||
82 | |||
3545 | hidnplayr | 83 | ; Socket options |
84 | SO_ACCEPTCON = 1 shl 0 |
||
85 | SO_BROADCAST = 1 shl 1 |
||
86 | SO_DEBUG = 1 shl 2 |
||
87 | SO_DONTROUTE = 1 shl 3 |
||
88 | SO_KEEPALIVE = 1 shl 4 |
||
89 | SO_OOBINLINE = 1 shl 5 |
||
90 | SO_REUSEADDR = 1 shl 6 |
||
91 | SO_REUSEPORT = 1 shl 7 |
||
92 | SO_USELOOPBACK = 1 shl 8 |
||
93 | SO_BINDTODEVICE = 1 shl 9 |
||
6476 | hidnplayr | 94 | SO_LINGER = 1 shl 10 |
3545 | hidnplayr | 95 | |
96 | SO_NONBLOCK = 1 shl 31 |
||
97 | |||
98 | ; Socket flags for user calls |
||
99 | MSG_PEEK = 0x02 |
||
100 | MSG_DONTWAIT = 0x40 |
||
101 | |||
102 | ; Socket States |
||
3600 | hidnplayr | 103 | SS_NOFDREF = 0x0001 ; no file table ref any more |
104 | SS_ISCONNECTED = 0x0002 ; socket connected to a peer |
||
105 | SS_ISCONNECTING = 0x0004 ; in process of connecting to peer |
||
106 | SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting |
||
107 | SS_CANTSENDMORE = 0x0010 ; can't send more data to peer |
||
108 | SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer |
||
109 | SS_RCVATMARK = 0x0040 ; at mark on input |
||
110 | SS_ISABORTING = 0x0080 ; aborting fd references - close() |
||
111 | SS_RESTARTSYS = 0x0100 ; restart blocked system calls |
||
112 | SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer |
||
3545 | hidnplayr | 113 | |
3674 | hidnplayr | 114 | SS_ASYNC = 0x1000 ; async i/o notify |
115 | SS_ISCONFIRMING = 0x2000 ; deciding to accept connection req |
||
116 | SS_MORETOCOME = 0x4000 |
||
3545 | hidnplayr | 117 | |
118 | SS_BLOCKED = 0x8000 |
||
119 | |||
120 | |||
6413 | hidnplayr | 121 | SOCKET_BUFFER_SIZE = 4096*8 ; must be 4096*(power of 2) where 'power of 2' is at least 8 |
3600 | hidnplayr | 122 | MAX_backlog = 20 ; maximum backlog for stream sockets |
3545 | hidnplayr | 123 | |
124 | ; Error Codes |
||
3674 | hidnplayr | 125 | ENOBUFS = 1 |
4025 | hidnplayr | 126 | EINPROGRESS = 2 |
3674 | hidnplayr | 127 | EOPNOTSUPP = 4 |
128 | EWOULDBLOCK = 6 |
||
129 | ENOTCONN = 9 |
||
130 | EALREADY = 10 |
||
131 | EINVAL = 11 |
||
132 | EMSGSIZE = 12 |
||
133 | ENOMEM = 18 |
||
134 | EADDRINUSE = 20 |
||
6476 | hidnplayr | 135 | EADDRNOTAVAIL = 21 |
3545 | hidnplayr | 136 | ECONNRESET = 52 |
6476 | hidnplayr | 137 | ECONNABORTED = 53 |
4025 | hidnplayr | 138 | EISCONN = 56 |
3545 | hidnplayr | 139 | ETIMEDOUT = 60 |
6476 | hidnplayr | 140 | ECONNREFUSED = 61 |
3545 | hidnplayr | 141 | |
142 | ; Api protocol numbers |
||
143 | API_ETH = 0 |
||
144 | API_IPv4 = 1 |
||
145 | API_ICMP = 2 |
||
146 | API_UDP = 3 |
||
147 | API_TCP = 4 |
||
148 | API_ARP = 5 |
||
149 | API_PPPOE = 6 |
||
150 | API_IPv6 = 7 |
||
151 | |||
3600 | hidnplayr | 152 | ; Network device types |
153 | NET_DEVICE_LOOPBACK = 0 |
||
154 | NET_DEVICE_ETH = 1 |
||
155 | NET_DEVICE_SLIP = 2 |
||
156 | |||
157 | ; Network link types (link protocols) |
||
5528 | hidnplayr | 158 | NET_LINK_LOOPBACK = 0 |
3600 | hidnplayr | 159 | NET_LINK_MAC = 1 ; Media access control (ethernet, isdn, ...) |
160 | NET_LINK_PPP = 2 ; Point to Point Protocol (PPPoE, ...) |
||
161 | NET_LINK_IEEE802.11 = 3 ; IEEE 802.11 (WiFi) |
||
162 | |||
163 | ; Hardware acceleration bits |
||
4387 | hidnplayr | 164 | NET_HWACC_TCP_IPv4_IN = 1 shl 0 |
165 | NET_HWACC_TCP_IPv4_OUT = 1 shl 1 |
||
3545 | hidnplayr | 166 | |
5522 | hidnplayr | 167 | ; Network frame types |
6011 | hidnplayr | 168 | NET_BUFF_LOOPBACK = 0 |
169 | NET_BUFF_ETH = 1 |
||
5522 | hidnplayr | 170 | |
3545 | hidnplayr | 171 | struct NET_DEVICE |
172 | |||
3600 | hidnplayr | 173 | device_type dd ? ; Type field |
3545 | hidnplayr | 174 | mtu dd ? ; Maximal Transmission Unit |
175 | name dd ? ; Ptr to 0 terminated string |
||
176 | |||
177 | unload dd ? ; Ptrs to driver functions |
||
178 | reset dd ? ; |
||
179 | transmit dd ? ; |
||
180 | |||
8896 | hidnplayr | 181 | link_state dd ? ; link state (0 = no link) |
182 | hwacc dd ? ; bitmask stating enabled HW accelerations (offload engines) |
||
183 | |||
3545 | hidnplayr | 184 | bytes_tx dq ? ; Statistics, updated by the driver |
185 | bytes_rx dq ? ; |
||
8896 | hidnplayr | 186 | |
3545 | hidnplayr | 187 | packets_tx dd ? ; |
8896 | hidnplayr | 188 | packets_tx_err dd ? ; CRC errors, too long or too short frames |
189 | packets_tx_drop dd ? ; |
||
190 | packets_tx_ovr dd ? ; FIFO overrun |
||
191 | |||
3545 | hidnplayr | 192 | packets_rx dd ? ; |
8896 | hidnplayr | 193 | packets_rx_err dd ? ; CRC errors, too long or too short frames |
194 | packets_rx_drop dd ? ; |
||
195 | packets_rx_ovr dd ? ; FIFO overrun |
||
3545 | hidnplayr | 196 | |
197 | ends |
||
198 | |||
5522 | hidnplayr | 199 | struct NET_BUFF |
3545 | hidnplayr | 200 | |
5522 | hidnplayr | 201 | NextPtr dd ? ; pointer to next frame in list |
202 | PrevPtr dd ? ; pointer to previous frame in list |
||
203 | device dd ? ; ptr to NET_DEVICE structure |
||
204 | type dd ? ; encapsulation type: e.g. Ethernet |
||
205 | length dd ? ; size of encapsulated data |
||
206 | offset dd ? ; offset to actual data (24 bytes for default frame) |
||
207 | data rb 0 |
||
208 | |||
209 | ends |
||
210 | |||
211 | |||
3545 | hidnplayr | 212 | ; Exactly as it says.. |
213 | macro pseudo_random reg { |
||
214 | add reg, [esp] |
||
215 | rol reg, 5 |
||
216 | xor reg, [timer_ticks] |
||
217 | ; add reg, [CPU_FREQ] |
||
218 | imul reg, 214013 |
||
219 | xor reg, 0xdeadbeef |
||
220 | rol reg, 9 |
||
221 | } |
||
222 | |||
223 | ; Network to Hardware byte order (dword) |
||
224 | macro ntohd reg { |
||
225 | |||
226 | rol word reg, 8 |
||
227 | rol dword reg, 16 |
||
228 | rol word reg , 8 |
||
229 | |||
230 | } |
||
231 | |||
232 | ; Network to Hardware byte order (word) |
||
233 | macro ntohw reg { |
||
234 | |||
235 | rol word reg, 8 |
||
236 | |||
237 | } |
||
238 | |||
239 | |||
240 | include "queue.inc" |
||
241 | |||
242 | include "loopback.inc" |
||
243 | include "ethernet.inc" |
||
244 | |||
9049 | hidnplayr | 245 | ;include "PPPoE.inc" |
3545 | hidnplayr | 246 | |
247 | include "ARP.inc" |
||
248 | include "IPv4.inc" |
||
9049 | hidnplayr | 249 | ;include "IPv6.inc" |
3545 | hidnplayr | 250 | |
251 | include "icmp.inc" |
||
252 | include "udp.inc" |
||
253 | include "tcp.inc" |
||
254 | |||
255 | include "socket.inc" |
||
256 | |||
257 | |||
258 | |||
3698 | hidnplayr | 259 | uglobal |
3545 | hidnplayr | 260 | align 4 |
261 | |||
7679 | hidnplayr | 262 | net_device_count dd ? |
263 | net_device_list rd NET_DEVICES_MAX |
||
3545 | hidnplayr | 264 | |
9017 | hidnplayr | 265 | net_buffs_free rd NET_BUFFERS ; list of pointers to actual net buffs |
266 | .current dd ? ; pointer to current element in net_buffs_free list |
||
5528 | hidnplayr | 267 | |
9017 | hidnplayr | 268 | if defined NETWORK_SANITY_CHECKS |
269 | net_buffs_low dd ? ; actual net buff mem region start |
||
270 | net_buffs_high dd ? ; actual net buff mem region stop |
||
271 | end if |
||
272 | |||
3545 | hidnplayr | 273 | endg |
274 | |||
275 | |||
6011 | hidnplayr | 276 | ;-----------------------------------------------------------------; |
277 | ; ; |
||
278 | ; stack_init: Initialize all network variables ; |
||
279 | ; ; |
||
280 | ; IN: / ; |
||
281 | ; OUT: / ; |
||
282 | ; ; |
||
283 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 284 | align 4 |
285 | stack_init: |
||
286 | |||
5528 | hidnplayr | 287 | ; allocate network buffers |
288 | stdcall kernel_alloc, NET_BUFFER_SIZE*NET_BUFFERS |
||
289 | test eax, eax |
||
290 | jz .fail |
||
291 | |||
9017 | hidnplayr | 292 | if defined NETWORK_SANITY_CHECKS |
293 | mov [net_buffs_low], eax |
||
294 | end if |
||
295 | |||
7678 | hidnplayr | 296 | mov edi, net_buffs_free |
5528 | hidnplayr | 297 | mov ecx, NET_BUFFERS |
298 | cld |
||
299 | .loop: |
||
300 | stosd |
||
301 | add eax, NET_BUFFER_SIZE |
||
302 | dec ecx |
||
303 | jnz .loop |
||
304 | |||
9017 | hidnplayr | 305 | if defined NETWORK_SANITY_CHECKS |
306 | sub eax, NET_BUFFER_SIZE |
||
307 | mov [net_buffs_high], eax |
||
308 | end if |
||
309 | |||
7678 | hidnplayr | 310 | mov eax, net_buffs_free |
5528 | hidnplayr | 311 | stosd |
312 | |||
3545 | hidnplayr | 313 | ; Init the network drivers list |
314 | xor eax, eax |
||
7679 | hidnplayr | 315 | mov edi, net_device_count |
5524 | hidnplayr | 316 | mov ecx, (NET_DEVICES_MAX + 1) |
3711 | clevermous | 317 | rep stosd |
3545 | hidnplayr | 318 | |
6011 | hidnplayr | 319 | eth_init |
3982 | hidnplayr | 320 | |
9049 | hidnplayr | 321 | ; pppoe_init |
3545 | hidnplayr | 322 | |
6011 | hidnplayr | 323 | ipv4_init |
324 | ; ipv6_init |
||
325 | icmp_init |
||
3545 | hidnplayr | 326 | |
6011 | hidnplayr | 327 | arp_init |
328 | udp_init |
||
329 | tcp_init |
||
3545 | hidnplayr | 330 | |
6011 | hidnplayr | 331 | socket_init |
3545 | hidnplayr | 332 | |
6011 | hidnplayr | 333 | loop_init |
3601 | hidnplayr | 334 | |
3545 | hidnplayr | 335 | mov [net_tmr_count], 0 |
5528 | hidnplayr | 336 | ret |
3545 | hidnplayr | 337 | |
5528 | hidnplayr | 338 | .fail: |
339 | DEBUGF DEBUG_NETWORK_ERROR, "Stack init failed!\n" |
||
3545 | hidnplayr | 340 | ret |
341 | |||
342 | |||
343 | |||
344 | ; Wakeup every tick. |
||
345 | proc stack_handler_has_work? |
||
346 | |||
3711 | clevermous | 347 | mov eax, [timer_ticks] |
348 | cmp eax, [net_10ms] |
||
3545 | hidnplayr | 349 | |
350 | ret |
||
351 | endp |
||
352 | |||
353 | |||
6011 | hidnplayr | 354 | ;-----------------------------------------------------------------; |
355 | ; ; |
||
356 | ; stack_handler: Network handlers called from os_loop. ; |
||
357 | ; ; |
||
358 | ; IN: / ; |
||
359 | ; OUT: / ; |
||
360 | ; ; |
||
361 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 362 | align 4 |
363 | stack_handler: |
||
364 | |||
365 | ; Test for 10ms tick |
||
366 | mov eax, [timer_ticks] |
||
367 | cmp eax, [net_10ms] |
||
368 | je .exit |
||
369 | mov [net_10ms], eax |
||
370 | |||
7679 | hidnplayr | 371 | cmp [net_device_count], 0 |
3545 | hidnplayr | 372 | je .exit |
373 | |||
374 | test [net_10ms], 0x0f ; 160ms |
||
375 | jnz .exit |
||
376 | |||
6011 | hidnplayr | 377 | tcp_timer_160ms |
3545 | hidnplayr | 378 | |
379 | test [net_10ms], 0x3f ; 640ms |
||
380 | jnz .exit |
||
381 | |||
6011 | hidnplayr | 382 | arp_decrease_entry_ttls |
383 | ipv4_decrease_fragment_ttls |
||
3545 | hidnplayr | 384 | |
5013 | hidnplayr | 385 | xor edx, edx |
386 | mov eax, [TCP_timer1_event] |
||
387 | mov ebx, [eax + EVENT.id] |
||
388 | xor esi, esi |
||
389 | call raise_event |
||
390 | |||
3545 | hidnplayr | 391 | .exit: |
392 | ret |
||
393 | |||
394 | |||
3861 | hidnplayr | 395 | align 4 |
6011 | hidnplayr | 396 | proc net_buff_alloc stdcall, buffersize |
397 | |||
5528 | hidnplayr | 398 | cmp [buffersize], NET_BUFFER_SIZE |
399 | ja .too_large |
||
5522 | hidnplayr | 400 | |
5528 | hidnplayr | 401 | spin_lock_irqsave |
5522 | hidnplayr | 402 | |
7678 | hidnplayr | 403 | mov eax, [net_buffs_free.current] |
404 | cmp eax, net_buffs_free+NET_BUFFERS*4 |
||
5528 | hidnplayr | 405 | jae .out_of_mem |
406 | mov eax, [eax] |
||
7678 | hidnplayr | 407 | add [net_buffs_free.current], 4 |
5528 | hidnplayr | 408 | |
409 | spin_unlock_irqrestore |
||
410 | |||
9017 | hidnplayr | 411 | if defined NETWORK_SANITY_CHECKS |
412 | cmp eax, [net_buffs_low] |
||
413 | cmp eax, [net_buffs_low] |
||
414 | jb .assert_mbuff |
||
415 | cmp eax, [net_buffs_high] |
||
416 | ja .assert_mbuff |
||
417 | test eax, 0x7ff |
||
418 | jnz .assert_mbuff |
||
419 | end if |
||
420 | |||
6011 | hidnplayr | 421 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_alloc: 0x%x\n", eax |
5528 | hidnplayr | 422 | ret |
423 | |||
424 | .out_of_mem: |
||
425 | spin_unlock_irqrestore |
||
426 | |||
427 | xor eax, eax |
||
6011 | hidnplayr | 428 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: out of mem!\n" |
5528 | hidnplayr | 429 | ret |
430 | |||
431 | .too_large: |
||
432 | xor eax, eax |
||
6011 | hidnplayr | 433 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: too large!\n" |
5528 | hidnplayr | 434 | ret |
9017 | hidnplayr | 435 | |
436 | if defined NETWORK_SANITY_CHECKS |
||
437 | .assert_mbuff: |
||
438 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: invalid buffer 0x%x\n", eax |
||
439 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_alloc: caller=0x%x\n", [esp+4] |
||
440 | xor eax, eax |
||
441 | ret |
||
442 | end if |
||
443 | |||
5528 | hidnplayr | 444 | endp |
445 | |||
446 | |||
5522 | hidnplayr | 447 | align 4 |
6011 | hidnplayr | 448 | proc net_buff_free stdcall, buffer |
3545 | hidnplayr | 449 | |
6011 | hidnplayr | 450 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_buff_free: 0x%x\n", [buffer] |
3861 | hidnplayr | 451 | |
9017 | hidnplayr | 452 | if defined NETWORK_SANITY_CHECKS |
453 | mov eax, [buffer] |
||
454 | cmp eax, [net_buffs_low] |
||
455 | jb .assert_mbuff |
||
456 | cmp eax, [net_buffs_high] |
||
457 | ja .assert_mbuff |
||
458 | test eax, 0x7ff |
||
459 | jnz .assert_mbuff |
||
460 | end if |
||
461 | |||
5528 | hidnplayr | 462 | spin_lock_irqsave |
463 | |||
8896 | hidnplayr | 464 | sub [net_buffs_free.current], 4 ; move pointer backwards |
465 | mov eax, [net_buffs_free.current] ; place free'd buffer pointer on the list |
||
5528 | hidnplayr | 466 | push [buffer] |
467 | pop dword[eax] |
||
468 | |||
469 | spin_unlock_irqrestore |
||
470 | |||
471 | ret |
||
9017 | hidnplayr | 472 | |
473 | if defined NETWORK_SANITY_CHECKS |
||
474 | .assert_mbuff: |
||
475 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_free: invalid buffer 0x%x\n", eax |
||
476 | DEBUGF DEBUG_NETWORK_ERROR, "net_buff_free: caller=0x%x\n", [esp+4] |
||
477 | xor eax, eax |
||
478 | ret |
||
479 | end if |
||
480 | |||
5528 | hidnplayr | 481 | endp |
482 | |||
483 | |||
3545 | hidnplayr | 484 | align 4 |
6011 | hidnplayr | 485 | net_link_changed: |
3545 | hidnplayr | 486 | |
6011 | hidnplayr | 487 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_link_changed device=0x%x status=0x%x\n", ebx, [ebx + NET_DEVICE.link_state] |
3545 | hidnplayr | 488 | |
489 | align 4 |
||
6011 | hidnplayr | 490 | net_send_event: |
3545 | hidnplayr | 491 | |
6011 | hidnplayr | 492 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_send_event\n" |
3545 | hidnplayr | 493 | |
494 | ; Send event to all applications |
||
495 | push edi ecx |
||
496 | mov edi, SLOT_BASE |
||
8866 | rgimad | 497 | mov ecx, [thread_count] |
3545 | hidnplayr | 498 | .loop: |
8867 | rgimad | 499 | add edi, sizeof.APPDATA |
500 | or [edi + APPDATA.occurred_events], EVENT_NETWORK2 |
||
3545 | hidnplayr | 501 | loop .loop |
502 | pop ecx edi |
||
503 | |||
504 | ret |
||
505 | |||
506 | |||
507 | |||
6011 | hidnplayr | 508 | ;-----------------------------------------------------------------; |
509 | ; ; |
||
510 | ; net_add_device: Called by network driver to register interface. ; |
||
511 | ; ; |
||
512 | ; IN: ebx = ptr to device structure ; |
||
513 | ; ; |
||
514 | ; OUT: eax = device num on success ; |
||
515 | ; eax = -1 on error ; |
||
516 | ; ; |
||
517 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 518 | align 4 |
6011 | hidnplayr | 519 | net_add_device: |
3545 | hidnplayr | 520 | |
6011 | hidnplayr | 521 | DEBUGF DEBUG_NETWORK_VERBOSE, "net_add_device: %x\n", ebx ;;; TODO: use mutex to lock net device list |
3545 | hidnplayr | 522 | |
7679 | hidnplayr | 523 | cmp [net_device_count], NET_DEVICES_MAX |
3545 | hidnplayr | 524 | jae .error |
525 | |||
526 | ;---------------------------------- |
||
527 | ; Check if device is already listed |
||
528 | mov eax, ebx |
||
3600 | hidnplayr | 529 | mov ecx, NET_DEVICES_MAX ; We need to check whole list because a device may be removed without re-organizing list |
7679 | hidnplayr | 530 | mov edi, net_device_list |
3545 | hidnplayr | 531 | |
3711 | clevermous | 532 | repne scasd ; See if device is already in the list |
3545 | hidnplayr | 533 | jz .error |
534 | |||
535 | ;---------------------------- |
||
536 | ; Find empty slot in the list |
||
537 | xor eax, eax |
||
3600 | hidnplayr | 538 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 539 | mov edi, net_device_list |
3545 | hidnplayr | 540 | |
3711 | clevermous | 541 | repne scasd |
3545 | hidnplayr | 542 | jnz .error |
543 | |||
544 | sub edi, 4 |
||
545 | |||
546 | ;----------------------------- |
||
547 | ; Add device to the found slot |
||
548 | mov [edi], ebx ; add device to list |
||
549 | |||
550 | mov eax, edi ; Calculate device number in eax |
||
7679 | hidnplayr | 551 | sub eax, net_device_list |
3545 | hidnplayr | 552 | shr eax, 2 |
553 | |||
7679 | hidnplayr | 554 | inc [net_device_count] ; Indicate that one more network device is up and running |
3545 | hidnplayr | 555 | |
6011 | hidnplayr | 556 | call net_send_event |
3545 | hidnplayr | 557 | |
3556 | hidnplayr | 558 | DEBUGF DEBUG_NETWORK_VERBOSE, "Device number: %u\n", eax |
3545 | hidnplayr | 559 | ret |
560 | |||
561 | .error: |
||
562 | or eax, -1 |
||
3556 | hidnplayr | 563 | DEBUGF DEBUG_NETWORK_ERROR, "Adding network device failed\n" |
3545 | hidnplayr | 564 | ret |
565 | |||
566 | |||
567 | |||
6011 | hidnplayr | 568 | ;-----------------------------------------------------------------; |
569 | ; ; |
||
570 | ; net_remove_device: Called by network driver to unregister dev. ; |
||
571 | ; ; |
||
572 | ; IN: ebx = ptr to device ; |
||
573 | ; ; |
||
574 | ; OUT: eax: -1 on error ; |
||
575 | ; ; |
||
576 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 577 | align 4 |
6011 | hidnplayr | 578 | net_remove_device: |
3545 | hidnplayr | 579 | |
7679 | hidnplayr | 580 | cmp [net_device_count], 0 |
3545 | hidnplayr | 581 | je .error |
582 | |||
583 | ;---------------------------- |
||
584 | ; Find the driver in the list |
||
585 | |||
586 | mov eax, ebx |
||
3600 | hidnplayr | 587 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 588 | mov edi, net_device_list |
3545 | hidnplayr | 589 | |
3711 | clevermous | 590 | repne scasd |
3545 | hidnplayr | 591 | jnz .error |
592 | |||
593 | ;------------------------ |
||
594 | ; Remove it from the list |
||
595 | |||
596 | xor eax, eax |
||
597 | mov dword [edi-4], eax |
||
7679 | hidnplayr | 598 | dec [net_device_count] |
3545 | hidnplayr | 599 | |
6011 | hidnplayr | 600 | call net_send_event |
3545 | hidnplayr | 601 | |
3601 | hidnplayr | 602 | xor eax, eax |
3545 | hidnplayr | 603 | ret |
604 | |||
605 | .error: |
||
606 | or eax, -1 |
||
607 | ret |
||
608 | |||
609 | |||
610 | |||
6011 | hidnplayr | 611 | ;-----------------------------------------------------------------; |
612 | ; ; |
||
613 | ; net_ptr_to_num ; |
||
614 | ; ; |
||
615 | ; IN: ebx = ptr to device struct ; |
||
616 | ; ; |
||
617 | ; OUT: edi = device number ; |
||
618 | ; edi = -1 on error ; |
||
619 | ; ; |
||
620 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 621 | align 4 |
6011 | hidnplayr | 622 | net_ptr_to_num: |
3643 | hidnplayr | 623 | |
6011 | hidnplayr | 624 | call net_ptr_to_num4 |
3643 | hidnplayr | 625 | ror edi, 2 ; If -1, stay -1 |
626 | ; valid device numbers have last two bits 0, so do just shr |
||
627 | |||
628 | ret |
||
629 | |||
630 | align 4 |
||
6011 | hidnplayr | 631 | net_ptr_to_num4: ; Todo, place number in device structure so we only need to verify? |
3643 | hidnplayr | 632 | |
5522 | hidnplayr | 633 | test ebx, ebx |
634 | jz .fail |
||
635 | |||
3545 | hidnplayr | 636 | push ecx |
3600 | hidnplayr | 637 | mov ecx, NET_DEVICES_MAX |
7679 | hidnplayr | 638 | mov edi, net_device_list |
3545 | hidnplayr | 639 | .loop: |
640 | cmp ebx, [edi] |
||
3643 | hidnplayr | 641 | je .found |
3545 | hidnplayr | 642 | add edi, 4 |
643 | dec ecx |
||
644 | jnz .loop |
||
645 | |||
5522 | hidnplayr | 646 | pop ecx |
647 | .fail: |
||
3545 | hidnplayr | 648 | or edi, -1 |
649 | ret |
||
650 | |||
651 | .found: |
||
7679 | hidnplayr | 652 | sub edi, net_device_list |
3545 | hidnplayr | 653 | pop ecx |
654 | ret |
||
655 | |||
6011 | hidnplayr | 656 | ;-----------------------------------------------------------------; |
657 | ; ; |
||
658 | ; checksum_1: Calculate semi-checksum for network packets. ; |
||
659 | ; ; |
||
660 | ; IN: edx = start offset for semi-checksum ; |
||
661 | ; esi = pointer to data ; |
||
662 | ; ecx = data size ; |
||
663 | ; ; |
||
664 | ; OUT: edx = semi-checksum ; |
||
665 | ; ; |
||
666 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 667 | align 4 |
668 | checksum_1: |
||
669 | |||
670 | shr ecx, 1 |
||
671 | pushf |
||
672 | jz .no_2 |
||
673 | |||
674 | shr ecx, 1 |
||
675 | pushf |
||
676 | jz .no_4 |
||
677 | |||
678 | shr ecx, 1 |
||
679 | pushf |
||
680 | jz .no_8 |
||
681 | |||
682 | .loop: |
||
683 | add dl, [esi+1] |
||
684 | adc dh, [esi+0] |
||
685 | |||
686 | adc dl, [esi+3] |
||
687 | adc dh, [esi+2] |
||
688 | |||
689 | adc dl, [esi+5] |
||
690 | adc dh, [esi+4] |
||
691 | |||
692 | adc dl, [esi+7] |
||
693 | adc dh, [esi+6] |
||
694 | |||
695 | adc edx, 0 |
||
696 | add esi, 8 |
||
697 | |||
698 | dec ecx |
||
699 | jnz .loop |
||
700 | |||
701 | adc edx, 0 |
||
702 | |||
703 | .no_8: |
||
704 | popf |
||
705 | jnc .no_4 |
||
706 | |||
707 | add dl, [esi+1] |
||
708 | adc dh, [esi+0] |
||
709 | |||
710 | adc dl, [esi+3] |
||
711 | adc dh, [esi+2] |
||
712 | |||
713 | adc edx, 0 |
||
714 | add esi, 4 |
||
715 | |||
716 | .no_4: |
||
717 | popf |
||
718 | jnc .no_2 |
||
719 | |||
720 | add dl, [esi+1] |
||
721 | adc dh, [esi+0] |
||
722 | |||
723 | adc edx, 0 |
||
724 | inc esi |
||
725 | inc esi |
||
726 | |||
727 | .no_2: |
||
728 | popf |
||
729 | jnc .end |
||
730 | |||
731 | add dh, [esi+0] |
||
732 | adc edx, 0 |
||
733 | .end: |
||
734 | ret |
||
735 | |||
6011 | hidnplayr | 736 | ;-----------------------------------------------------------------; |
737 | ; ; |
||
738 | ; checksum_2: Calculate the final ip/tcp/udp checksum. ; |
||
739 | ; ; |
||
740 | ; IN: edx = semi-checksum ; |
||
741 | ; ; |
||
742 | ; OUT: dx = checksum (in INET byte order) ; |
||
743 | ; ; |
||
744 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 745 | align 4 |
746 | checksum_2: |
||
747 | |||
748 | mov ecx, edx |
||
749 | shr ecx, 16 |
||
750 | and edx, 0xffff |
||
751 | add edx, ecx |
||
752 | |||
753 | mov ecx, edx |
||
754 | shr ecx, 16 |
||
755 | add dx, cx |
||
756 | test dx, dx ; it seems that ZF is not set when CF is set :( |
||
757 | not dx |
||
758 | jnz .not_zero |
||
759 | dec dx |
||
760 | .not_zero: |
||
761 | xchg dl, dh |
||
762 | |||
3556 | hidnplayr | 763 | DEBUGF DEBUG_NETWORK_VERBOSE, "Checksum: %x\n", dx |
3545 | hidnplayr | 764 | |
765 | ret |
||
766 | |||
767 | |||
768 | |||
6011 | hidnplayr | 769 | ;-----------------------------------------------------------------; |
770 | ; ; |
||
771 | ; System function 74: Low level access to network devices. ; |
||
772 | ; ; |
||
773 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 774 | align 4 |
3601 | hidnplayr | 775 | sys_network: |
3545 | hidnplayr | 776 | |
3879 | hidnplayr | 777 | cmp bl, 255 |
3545 | hidnplayr | 778 | jne @f |
779 | |||
7679 | hidnplayr | 780 | mov eax, [net_device_count] |
9917 | Doczom | 781 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 782 | ret |
3545 | hidnplayr | 783 | |
784 | @@: |
||
7679 | hidnplayr | 785 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 786 | jae .doesnt_exist |
787 | |||
788 | mov esi, ebx |
||
789 | and esi, 0x0000ff00 |
||
790 | shr esi, 6 |
||
791 | |||
7679 | hidnplayr | 792 | cmp dword[esi + net_device_list], 0 ; check if device is running |
3545 | hidnplayr | 793 | je .doesnt_exist |
794 | |||
7679 | hidnplayr | 795 | mov eax, [esi + net_device_list] |
3545 | hidnplayr | 796 | |
797 | and ebx, 0x000000ff |
||
798 | cmp ebx, .number |
||
799 | ja .doesnt_exist |
||
800 | jmp dword [.table + 4*ebx] |
||
801 | |||
802 | .table: |
||
9017 | hidnplayr | 803 | dd .get_type ; 0 |
804 | dd .get_dev_name ; 1 |
||
805 | dd .reset ; 2 |
||
806 | dd .stop ; 3 |
||
807 | dd .get_ptr ; 4 |
||
808 | dd .get_drv_name ; 5 |
||
3601 | hidnplayr | 809 | |
9017 | hidnplayr | 810 | dd .packets_tx ; 6 |
811 | dd .packets_rx ; 7 |
||
812 | dd .bytes_tx ; 8 |
||
813 | dd .bytes_rx ; 9 |
||
3601 | hidnplayr | 814 | dd .state ; 10 |
9017 | hidnplayr | 815 | dd .packets_tx_err ; 11 |
816 | dd .packets_tx_drop ; 12 |
||
817 | dd .packets_tx_ovr ; 13 |
||
818 | dd .packets_rx_err ; 14 |
||
819 | dd .packets_rx_drop ; 15 |
||
820 | dd .packets_rx_ovr ; 16 |
||
821 | |||
3545 | hidnplayr | 822 | .number = ($ - .table) / 4 - 1 |
823 | |||
3601 | hidnplayr | 824 | .get_type: |
3600 | hidnplayr | 825 | mov eax, [eax + NET_DEVICE.device_type] |
9917 | Doczom | 826 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 827 | ret |
3545 | hidnplayr | 828 | |
3601 | hidnplayr | 829 | .get_dev_name: |
8700 | Coldy | 830 | stdcall is_region_userspace, ecx, 64 |
9045 | dunkaist | 831 | jnz .bad_buffer |
9049 | hidnplayr | 832 | mov esi, [eax + NET_DEVICE.name] |
3545 | hidnplayr | 833 | mov edi, ecx |
834 | |||
835 | mov ecx, 64/4 ; max length |
||
3711 | clevermous | 836 | rep movsd |
3545 | hidnplayr | 837 | |
838 | xor eax, eax |
||
9917 | Doczom | 839 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 840 | ret |
3545 | hidnplayr | 841 | |
3601 | hidnplayr | 842 | .reset: |
3545 | hidnplayr | 843 | call [eax + NET_DEVICE.reset] |
9917 | Doczom | 844 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 845 | ret |
3545 | hidnplayr | 846 | |
3601 | hidnplayr | 847 | .stop: |
3545 | hidnplayr | 848 | call [eax + NET_DEVICE.unload] |
9917 | Doczom | 849 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 850 | ret |
3545 | hidnplayr | 851 | |
852 | |||
3601 | hidnplayr | 853 | .get_ptr: |
9917 | Doczom | 854 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 855 | ret |
3545 | hidnplayr | 856 | |
857 | |||
3601 | hidnplayr | 858 | .get_drv_name: |
859 | xor eax, eax |
||
9917 | Doczom | 860 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 861 | ret |
3545 | hidnplayr | 862 | |
3601 | hidnplayr | 863 | .packets_tx: |
864 | mov eax, [eax + NET_DEVICE.packets_tx] |
||
9917 | Doczom | 865 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 866 | ret |
3545 | hidnplayr | 867 | |
3601 | hidnplayr | 868 | .packets_rx: |
869 | mov eax, [eax + NET_DEVICE.packets_rx] |
||
9917 | Doczom | 870 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 871 | ret |
3545 | hidnplayr | 872 | |
3601 | hidnplayr | 873 | .bytes_tx: |
6011 | hidnplayr | 874 | mov ebx, dword[eax + NET_DEVICE.bytes_tx + 4] |
9917 | Doczom | 875 | mov [esp + SYSCALL_STACK.ebx], ebx |
6011 | hidnplayr | 876 | mov eax, dword[eax + NET_DEVICE.bytes_tx] |
9917 | Doczom | 877 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 878 | ret |
3545 | hidnplayr | 879 | |
3601 | hidnplayr | 880 | .bytes_rx: |
6011 | hidnplayr | 881 | mov ebx, dword[eax + NET_DEVICE.bytes_rx + 4] |
9917 | Doczom | 882 | mov [esp + SYSCALL_STACK.ebx], ebx |
6011 | hidnplayr | 883 | mov eax, dword[eax + NET_DEVICE.bytes_rx] |
9917 | Doczom | 884 | mov [esp + SYSCALL_STACK.eax], eax |
3601 | hidnplayr | 885 | ret |
3545 | hidnplayr | 886 | |
9017 | hidnplayr | 887 | .packets_tx_err: |
888 | mov eax, [eax + NET_DEVICE.packets_tx_err] |
||
9917 | Doczom | 889 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 890 | ret |
891 | |||
892 | .packets_tx_drop: |
||
893 | mov eax, [eax + NET_DEVICE.packets_tx_drop] |
||
9917 | Doczom | 894 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 895 | ret |
896 | |||
897 | .packets_tx_ovr: |
||
898 | mov eax, [eax + NET_DEVICE.packets_tx_ovr] |
||
9917 | Doczom | 899 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 900 | ret |
901 | |||
902 | .packets_rx_err: |
||
903 | mov eax, [eax + NET_DEVICE.packets_rx_err] |
||
9917 | Doczom | 904 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 905 | ret |
906 | |||
907 | .packets_rx_drop: |
||
908 | mov eax, [eax + NET_DEVICE.packets_rx_drop] |
||
9917 | Doczom | 909 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 910 | ret |
911 | |||
912 | .packets_rx_ovr: |
||
913 | mov eax, [eax + NET_DEVICE.packets_rx_ovr] |
||
9917 | Doczom | 914 | mov [esp + SYSCALL_STACK.eax], eax |
9017 | hidnplayr | 915 | ret |
916 | |||
3601 | hidnplayr | 917 | .state: |
918 | mov eax, [eax + NET_DEVICE.link_state] |
||
9917 | Doczom | 919 | mov [esp + SYSCALL_STACK.eax], eax |
3545 | hidnplayr | 920 | ret |
921 | |||
922 | |||
3601 | hidnplayr | 923 | .doesnt_exist: |
8700 | Coldy | 924 | .bad_buffer: ; Sanity check failed, exit |
9917 | Doczom | 925 | mov dword[esp + SYSCALL_STACK.eax], -1 |
3601 | hidnplayr | 926 | ret |
927 | |||
928 | |||
929 | |||
6011 | hidnplayr | 930 | ;-----------------------------------------------------------------; |
931 | ; ; |
||
932 | ; System function 76: Low level access to protocol handlers. ; |
||
933 | ; ; |
||
934 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 935 | align 4 |
936 | sys_protocols: |
||
3600 | hidnplayr | 937 | cmp bh, NET_DEVICES_MAX ; Check if device number exists |
3545 | hidnplayr | 938 | jae .doesnt_exist |
939 | |||
7963 | hidnplayr | 940 | mov eax, ebx |
941 | and eax, 0x0000ff00 |
||
942 | shr eax, 6 ; now we have the device num * 4 in eax |
||
943 | cmp [eax + net_device_list], 0 ; check if device is running |
||
3545 | hidnplayr | 944 | je .doesnt_exist |
945 | |||
946 | push .return ; return address (we will be using jumps instead of calls) |
||
947 | |||
948 | mov eax, ebx ; set ax to protocol number |
||
949 | shr eax, 16 ; |
||
950 | |||
951 | cmp ax, API_ETH |
||
6011 | hidnplayr | 952 | je eth_api |
3545 | hidnplayr | 953 | |
954 | cmp ax, API_IPv4 |
||
6011 | hidnplayr | 955 | je ipv4_api |
3545 | hidnplayr | 956 | |
957 | cmp ax, API_ICMP |
||
6011 | hidnplayr | 958 | je icmp_api |
3545 | hidnplayr | 959 | |
960 | cmp ax, API_UDP |
||
6011 | hidnplayr | 961 | je udp_api |
3545 | hidnplayr | 962 | |
963 | cmp ax, API_TCP |
||
6011 | hidnplayr | 964 | je tcp_api |
3545 | hidnplayr | 965 | |
966 | cmp ax, API_ARP |
||
6011 | hidnplayr | 967 | je arp_api |
3545 | hidnplayr | 968 | |
9049 | hidnplayr | 969 | ; cmp ax, API_PPPOE |
970 | ; je pppoe_api |
||
3545 | hidnplayr | 971 | |
9049 | hidnplayr | 972 | ; cmp ax, API_IPv6 |
973 | ; je ipv6_api |
||
3545 | hidnplayr | 974 | |
975 | add esp, 4 ; if we reached here, no function was called, so we need to balance stack |
||
976 | |||
977 | .doesnt_exist: |
||
978 | mov eax, -1 |
||
979 | |||
980 | .return: |
||
9917 | Doczom | 981 | mov [esp + SYSCALL_STACK.eax], eax ; return eax value to the program |
3545 | hidnplayr | 982 | ret |