Rev 1491 | Rev 1992 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
1289 | diamond | 3 | ;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
164 | serge | 7 | |
593 | mikedld | 8 | $Revision: 1989 $ |
9 | |||
10 | |||
465 | serge | 11 | DRV_COMPAT equ 5 ;minimal required drivers version |
12 | DRV_CURRENT equ 5 ;current drivers model version |
||
214 | serge | 13 | |
227 | serge | 14 | DRV_VERSION equ (DRV_COMPAT shl 16) or DRV_CURRENT |
797 | serge | 15 | PID_KERNEL equ 1 ;os_idle thread |
227 | serge | 16 | |
164 | serge | 17 | align 4 |
774 | Rus | 18 | proc attach_int_handler stdcall, irq:dword, handler:dword, access_rights:dword |
164 | serge | 19 | |
978 | serge | 20 | push ebx |
21 | |||
802 | serge | 22 | mov ebx, [irq] ;irq num |
924 | serge | 23 | test ebx, ebx |
24 | jz .err |
||
802 | serge | 25 | cmp ebx, 15 ; hidnplayr says: we only have 16 IRQ's |
924 | serge | 26 | ja .err |
27 | mov eax, [handler] |
||
28 | test eax, eax |
||
29 | jz .err |
||
30 | cmp [irq_owner + 4 * ebx], 0 |
||
31 | je @f |
||
774 | Rus | 32 | |
802 | serge | 33 | mov ecx, [irq_rights + 4 * ebx] ; Rights : 0 - full access, 1 - read only, 2 - forbidden |
924 | serge | 34 | test ecx, ecx |
35 | jnz .err |
||
774 | Rus | 36 | |
802 | serge | 37 | @@: |
924 | serge | 38 | mov [irq_tab+ebx*4], eax |
769 | Rus | 39 | |
924 | serge | 40 | mov eax, [access_rights] |
41 | mov [irq_rights + 4 * ebx], eax |
||
774 | Rus | 42 | |
802 | serge | 43 | mov [irq_owner + 4 * ebx], PID_KERNEL ; all handlers belong to a kernel |
769 | Rus | 44 | |
924 | serge | 45 | stdcall enable_irq, [irq] |
978 | serge | 46 | pop ebx |
802 | serge | 47 | mov eax, 1 |
924 | serge | 48 | ret |
164 | serge | 49 | .err: |
978 | serge | 50 | pop ebx |
924 | serge | 51 | xor eax, eax |
52 | ret |
||
164 | serge | 53 | endp |
54 | |||
774 | Rus | 55 | uglobal |
56 | |||
57 | irq_rights rd 16 |
||
58 | |||
59 | endg |
||
60 | |||
61 | proc get_int_handler stdcall, irq:dword |
||
62 | |||
63 | mov eax, [irq] |
||
64 | |||
65 | cmp [irq_rights + 4 * eax], dword 1 |
||
66 | ja .err |
||
67 | |||
68 | mov eax, [irq_tab + 4 * eax] |
||
69 | ret |
||
70 | |||
71 | .err: |
||
72 | xor eax, eax |
||
73 | ret |
||
74 | |||
75 | endp |
||
76 | |||
164 | serge | 77 | align 4 |
78 | proc detach_int_handler |
||
79 | |||
80 | ret |
||
81 | endp |
||
82 | |||
83 | align 4 |
||
84 | proc enable_irq stdcall, irq_line:dword |
||
672 | hidnplayr | 85 | mov ebx, [irq_line] |
86 | mov edx, 0x21 |
||
87 | cmp ebx, 8 |
||
88 | jb @F |
||
89 | mov edx, 0xA1 |
||
90 | sub ebx,8 |
||
164 | serge | 91 | @@: |
672 | hidnplayr | 92 | in al,dx |
93 | btr eax, ebx |
||
94 | out dx, al |
||
95 | ret |
||
164 | serge | 96 | endp |
97 | |||
98 | align 16 |
||
99 | ;; proc irq_serv |
||
100 | |||
101 | irq_serv: |
||
102 | |||
103 | .irq_1: |
||
769 | Rus | 104 | push 1 |
164 | serge | 105 | jmp .main |
106 | align 4 |
||
107 | .irq_2: |
||
769 | Rus | 108 | push 2 |
164 | serge | 109 | jmp .main |
110 | align 4 |
||
111 | .irq_3: |
||
769 | Rus | 112 | push 3 |
164 | serge | 113 | jmp .main |
114 | align 4 |
||
115 | .irq_4: |
||
769 | Rus | 116 | push 4 |
164 | serge | 117 | jmp .main |
118 | align 4 |
||
119 | .irq_5: |
||
769 | Rus | 120 | push 5 |
164 | serge | 121 | jmp .main |
972 | ghost | 122 | ; align 4 |
123 | ; .irq_6: |
||
124 | ; push 6 |
||
125 | ; jmp .main |
||
164 | serge | 126 | align 4 |
127 | .irq_7: |
||
769 | Rus | 128 | push 7 |
164 | serge | 129 | jmp .main |
130 | align 4 |
||
131 | .irq_8: |
||
769 | Rus | 132 | push 8 |
164 | serge | 133 | jmp .main |
134 | align 4 |
||
135 | .irq_9: |
||
769 | Rus | 136 | push 9 |
164 | serge | 137 | jmp .main |
138 | align 4 |
||
139 | .irq_10: |
||
769 | Rus | 140 | push 10 |
164 | serge | 141 | jmp .main |
142 | align 4 |
||
143 | .irq_11: |
||
769 | Rus | 144 | push 11 |
164 | serge | 145 | jmp .main |
146 | align 4 |
||
147 | .irq_12: |
||
769 | Rus | 148 | push 12 |
164 | serge | 149 | jmp .main |
972 | ghost | 150 | ; align 4 |
151 | ; .irq_13: |
||
152 | ; push 13 |
||
153 | ; jmp .main |
||
1989 | clevermous | 154 | align 4 |
155 | .irq_14: |
||
156 | push 14 |
||
157 | jmp .main |
||
158 | align 4 |
||
159 | .irq_15: |
||
160 | push 15 |
||
161 | jmp .main |
||
164 | serge | 162 | |
163 | align 16 |
||
164 | .main: |
||
165 | save_ring3_context |
||
769 | Rus | 166 | mov eax, [esp + 32] |
672 | hidnplayr | 167 | mov bx, app_data ;os_data |
164 | serge | 168 | mov ds, bx |
169 | mov es, bx |
||
170 | |||
769 | Rus | 171 | cmp [v86_irqhooks+eax*8], 0 |
172 | jnz v86_irq |
||
709 | diamond | 173 | |
1989 | clevermous | 174 | cmp al, 14 |
175 | jnz @f |
||
176 | push eax |
||
177 | call [irq14_func] |
||
178 | pop eax |
||
179 | @@: |
||
180 | cmp al, 15 |
||
181 | jnz @f |
||
182 | push eax |
||
183 | call [irq15_func] |
||
184 | pop eax |
||
185 | @@: |
||
186 | |||
164 | serge | 187 | mov ebx, [irq_tab+eax*4] |
188 | test ebx, ebx |
||
189 | jz .exit |
||
190 | |||
672 | hidnplayr | 191 | call ebx |
192 | mov [check_idle_semaphore],5 |
||
164 | serge | 193 | |
194 | .exit: |
||
195 | |||
769 | Rus | 196 | cmp dword [esp + 32], 8 |
164 | serge | 197 | mov al, 0x20 |
672 | hidnplayr | 198 | jb @f |
164 | serge | 199 | out 0xa0, al |
200 | @@: |
||
672 | hidnplayr | 201 | out 0x20, al |
164 | serge | 202 | |
769 | Rus | 203 | restore_ring3_context |
204 | add esp, 4 |
||
205 | |||
164 | serge | 206 | iret |
207 | |||
208 | align 4 |
||
209 | proc get_notify stdcall, p_ev:dword |
||
210 | |||
211 | .wait: |
||
672 | hidnplayr | 212 | mov ebx,[current_slot] |
213 | test dword [ebx+APPDATA.event_mask],EVENT_NOTIFY |
||
164 | serge | 214 | jz @f |
672 | hidnplayr | 215 | and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY |
164 | serge | 216 | mov edi, [p_ev] |
217 | mov dword [edi], EV_INTR |
||
672 | hidnplayr | 218 | mov eax, [ebx+APPDATA.event] |
164 | serge | 219 | mov dword [edi+4], eax |
220 | ret |
||
221 | @@: |
||
222 | call change_task |
||
223 | jmp .wait |
||
224 | endp |
||
225 | |||
226 | align 4 |
||
227 | proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword |
||
769 | Rus | 228 | push ebx |
164 | serge | 229 | xor eax, eax |
230 | xor ebx, ebx |
||
231 | mov ah, byte [bus] |
||
672 | hidnplayr | 232 | mov al, 6 |
164 | serge | 233 | mov bh, byte [devfn] |
234 | mov bl, byte [reg] |
||
235 | call pci_read_reg |
||
769 | Rus | 236 | pop ebx |
164 | serge | 237 | ret |
238 | endp |
||
239 | |||
240 | align 4 |
||
557 | serge | 241 | proc pci_read16 stdcall, bus:dword, devfn:dword, reg:dword |
769 | Rus | 242 | push ebx |
557 | serge | 243 | xor eax, eax |
244 | xor ebx, ebx |
||
245 | mov ah, byte [bus] |
||
672 | hidnplayr | 246 | mov al, 5 |
557 | serge | 247 | mov bh, byte [devfn] |
248 | mov bl, byte [reg] |
||
249 | call pci_read_reg |
||
769 | Rus | 250 | pop ebx |
557 | serge | 251 | ret |
252 | endp |
||
253 | |||
254 | align 4 |
||
164 | serge | 255 | proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword |
769 | Rus | 256 | push ebx |
164 | serge | 257 | xor eax, eax |
258 | xor ebx, ebx |
||
259 | mov ah, byte [bus] |
||
672 | hidnplayr | 260 | mov al, 4 |
164 | serge | 261 | mov bh, byte [devfn] |
262 | mov bl, byte [reg] |
||
263 | call pci_read_reg |
||
769 | Rus | 264 | pop ebx |
164 | serge | 265 | ret |
266 | endp |
||
267 | |||
268 | align 4 |
||
269 | proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
769 | Rus | 270 | push ebx |
164 | serge | 271 | xor eax, eax |
272 | xor ebx, ebx |
||
273 | mov ah, byte [bus] |
||
672 | hidnplayr | 274 | mov al, 8 |
164 | serge | 275 | mov bh, byte [devfn] |
276 | mov bl, byte [reg] |
||
672 | hidnplayr | 277 | mov ecx, [val] |
278 | call pci_write_reg |
||
769 | Rus | 279 | pop ebx |
164 | serge | 280 | ret |
281 | endp |
||
282 | |||
557 | serge | 283 | align 4 |
284 | proc pci_write16 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
769 | Rus | 285 | push ebx |
557 | serge | 286 | xor eax, eax |
287 | xor ebx, ebx |
||
288 | mov ah, byte [bus] |
||
672 | hidnplayr | 289 | mov al, 9 |
557 | serge | 290 | mov bh, byte [devfn] |
291 | mov bl, byte [reg] |
||
672 | hidnplayr | 292 | mov ecx, [val] |
293 | call pci_write_reg |
||
769 | Rus | 294 | pop ebx |
557 | serge | 295 | ret |
296 | endp |
||
297 | |||
672 | hidnplayr | 298 | align 4 |
299 | proc pci_write32 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
769 | Rus | 300 | push ebx |
672 | hidnplayr | 301 | xor eax, eax |
302 | xor ebx, ebx |
||
303 | mov ah, byte [bus] |
||
304 | mov al, 10 |
||
305 | mov bh, byte [devfn] |
||
306 | mov bl, byte [reg] |
||
307 | mov ecx, [val] |
||
308 | call pci_write_reg |
||
769 | Rus | 309 | pop ebx |
672 | hidnplayr | 310 | ret |
311 | endp |
||
164 | serge | 312 | |
672 | hidnplayr | 313 | handle equ IOCTL.handle |
314 | io_code equ IOCTL.io_code |
||
315 | input equ IOCTL.input |
||
316 | inp_size equ IOCTL.inp_size |
||
317 | output equ IOCTL.output |
||
318 | out_size equ IOCTL.out_size |
||
164 | serge | 319 | |
672 | hidnplayr | 320 | |
164 | serge | 321 | align 4 |
322 | proc srv_handler stdcall, ioctl:dword |
||
672 | hidnplayr | 323 | mov esi, [ioctl] |
324 | test esi, esi |
||
325 | jz .err |
||
164 | serge | 326 | |
672 | hidnplayr | 327 | mov edi, [esi+handle] |
328 | cmp [edi+SRV.magic], ' SRV' |
||
164 | serge | 329 | jne .fail |
330 | |||
1275 | serge | 331 | cmp [edi+SRV.size], SRV.sizeof |
164 | serge | 332 | jne .fail |
333 | |||
672 | hidnplayr | 334 | stdcall [edi+SRV.srv_proc], esi |
335 | ret |
||
164 | serge | 336 | .fail: |
672 | hidnplayr | 337 | xor eax, eax |
338 | not eax |
||
339 | mov [esi+output], eax |
||
340 | mov [esi+out_size], 4 |
||
341 | ret |
||
164 | serge | 342 | .err: |
672 | hidnplayr | 343 | xor eax, eax |
344 | not eax |
||
345 | ret |
||
164 | serge | 346 | endp |
347 | |||
377 | serge | 348 | ; param |
1345 | Lrz | 349 | ; ecx= io_control |
377 | serge | 350 | ; |
351 | ; retval |
||
352 | ; eax= error code |
||
353 | |||
164 | serge | 354 | align 4 |
377 | serge | 355 | srv_handlerEx: |
1345 | Lrz | 356 | cmp ecx, OS_BASE |
672 | hidnplayr | 357 | jae .fail |
164 | serge | 358 | |
1345 | Lrz | 359 | mov eax, [ecx+handle] |
672 | hidnplayr | 360 | cmp [eax+SRV.magic], ' SRV' |
164 | serge | 361 | jne .fail |
362 | |||
1275 | serge | 363 | cmp [eax+SRV.size], SRV.sizeof |
164 | serge | 364 | jne .fail |
365 | |||
1345 | Lrz | 366 | stdcall [eax+SRV.srv_proc], ecx |
672 | hidnplayr | 367 | ret |
164 | serge | 368 | .fail: |
672 | hidnplayr | 369 | or eax, -1 |
370 | ret |
||
164 | serge | 371 | |
372 | restore handle |
||
373 | restore io_code |
||
374 | restore input |
||
375 | restore inp_size |
||
376 | restore output |
||
377 | restore out_size |
||
378 | |||
379 | align 4 |
||
380 | proc get_service stdcall, sz_name:dword |
||
672 | hidnplayr | 381 | mov eax, [sz_name] |
382 | test eax, eax |
||
383 | jnz @F |
||
384 | ret |
||
164 | serge | 385 | @@: |
672 | hidnplayr | 386 | mov edx, [srv.fd] |
188 | serge | 387 | @@: |
672 | hidnplayr | 388 | cmp edx, srv.fd-SRV_FD_OFFSET |
389 | je .not_load |
||
278 | serge | 390 | |
672 | hidnplayr | 391 | stdcall strncmp, edx, [sz_name], 16 |
392 | test eax, eax |
||
393 | je .ok |
||
164 | serge | 394 | |
672 | hidnplayr | 395 | mov edx, [edx+SRV.fd] |
396 | jmp @B |
||
164 | serge | 397 | .not_load: |
672 | hidnplayr | 398 | pop ebp |
399 | jmp load_driver |
||
164 | serge | 400 | .ok: |
672 | hidnplayr | 401 | mov eax, edx |
402 | ret |
||
164 | serge | 403 | endp |
404 | |||
405 | align 4 |
||
740 | serge | 406 | proc reg_service stdcall, name:dword, handler:dword |
164 | serge | 407 | |
819 | serge | 408 | push ebx |
164 | serge | 409 | |
819 | serge | 410 | xor eax, eax |
411 | |||
769 | Rus | 412 | cmp [name], eax |
413 | je .fail |
||
740 | serge | 414 | |
769 | Rus | 415 | cmp [handler], eax |
416 | je .fail |
||
740 | serge | 417 | |
1275 | serge | 418 | mov eax, SRV.sizeof |
419 | call malloc |
||
164 | serge | 420 | test eax, eax |
421 | jz .fail |
||
422 | |||
769 | Rus | 423 | push esi |
424 | push edi |
||
164 | serge | 425 | mov edi, eax |
769 | Rus | 426 | mov esi, [name] |
1275 | serge | 427 | movsd |
428 | movsd |
||
429 | movsd |
||
430 | movsd |
||
769 | Rus | 431 | pop edi |
432 | pop esi |
||
164 | serge | 433 | |
672 | hidnplayr | 434 | mov [eax+SRV.magic], ' SRV' |
1275 | serge | 435 | mov [eax+SRV.size], SRV.sizeof |
278 | serge | 436 | |
672 | hidnplayr | 437 | mov ebx, srv.fd-SRV_FD_OFFSET |
438 | mov edx, [ebx+SRV.fd] |
||
439 | mov [eax+SRV.fd], edx |
||
440 | mov [eax+SRV.bk], ebx |
||
441 | mov [ebx+SRV.fd], eax |
||
442 | mov [edx+SRV.bk], eax |
||
278 | serge | 443 | |
769 | Rus | 444 | mov ecx, [handler] |
672 | hidnplayr | 445 | mov [eax+SRV.srv_proc], ecx |
769 | Rus | 446 | pop ebx |
447 | ret |
||
164 | serge | 448 | .fail: |
449 | xor eax, eax |
||
819 | serge | 450 | pop ebx |
769 | Rus | 451 | ret |
740 | serge | 452 | endp |
164 | serge | 453 | |
454 | align 4 |
||
455 | proc get_proc stdcall, exp:dword, sz_name:dword |
||
456 | |||
672 | hidnplayr | 457 | mov edx, [exp] |
164 | serge | 458 | .next: |
672 | hidnplayr | 459 | mov eax, [edx] |
460 | test eax, eax |
||
461 | jz .end |
||
164 | serge | 462 | |
672 | hidnplayr | 463 | push edx |
464 | stdcall strncmp, eax, [sz_name], 16 |
||
465 | pop edx |
||
466 | test eax, eax |
||
467 | jz .ok |
||
164 | serge | 468 | |
672 | hidnplayr | 469 | add edx,8 |
470 | jmp .next |
||
164 | serge | 471 | .ok: |
672 | hidnplayr | 472 | mov eax, [edx+4] |
164 | serge | 473 | .end: |
672 | hidnplayr | 474 | ret |
164 | serge | 475 | endp |
476 | |||
477 | align 4 |
||
478 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
||
479 | |||
480 | @@: |
||
481 | stdcall strncmp, [pSym], [sz_sym], 8 |
||
482 | test eax,eax |
||
483 | jz .ok |
||
484 | add [pSym], 18 |
||
485 | dec [count] |
||
486 | jnz @b |
||
487 | xor eax, eax |
||
488 | ret |
||
489 | .ok: |
||
1289 | diamond | 490 | mov eax, [pSym] |
491 | mov eax, [eax+8] |
||
164 | serge | 492 | ret |
493 | endp |
||
494 | |||
495 | align 4 |
||
188 | serge | 496 | proc get_curr_task |
672 | hidnplayr | 497 | mov eax,[CURRENT_TASK] |
498 | shl eax, 8 |
||
499 | ret |
||
188 | serge | 500 | endp |
164 | serge | 501 | |
188 | serge | 502 | align 4 |
503 | proc get_fileinfo stdcall, file_name:dword, info:dword |
||
672 | hidnplayr | 504 | locals |
505 | cmd dd ? |
||
506 | offset dd ? |
||
507 | dd ? |
||
508 | count dd ? |
||
509 | buff dd ? |
||
510 | db ? |
||
511 | name dd ? |
||
512 | endl |
||
164 | serge | 513 | |
672 | hidnplayr | 514 | xor eax, eax |
515 | mov ebx, [file_name] |
||
516 | mov ecx, [info] |
||
164 | serge | 517 | |
672 | hidnplayr | 518 | mov [cmd], 5 |
519 | mov [offset], eax |
||
520 | mov [offset+4], eax |
||
521 | mov [count], eax |
||
522 | mov [buff], ecx |
||
523 | mov byte [buff+4], al |
||
524 | mov [name], ebx |
||
164 | serge | 525 | |
672 | hidnplayr | 526 | mov eax, 70 |
527 | lea ebx, [cmd] |
||
528 | int 0x40 |
||
529 | ret |
||
188 | serge | 530 | endp |
164 | serge | 531 | |
188 | serge | 532 | align 4 |
533 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
||
672 | hidnplayr | 534 | bytes:dword |
535 | locals |
||
536 | cmd dd ? |
||
537 | offset dd ? |
||
538 | dd ? |
||
539 | count dd ? |
||
540 | buff dd ? |
||
541 | db ? |
||
542 | name dd ? |
||
543 | endl |
||
164 | serge | 544 | |
672 | hidnplayr | 545 | xor eax, eax |
546 | mov ebx, [file_name] |
||
547 | mov ecx, [off] |
||
548 | mov edx, [bytes] |
||
549 | mov esi, [buffer] |
||
164 | serge | 550 | |
672 | hidnplayr | 551 | mov [cmd], eax |
552 | mov [offset], ecx |
||
553 | mov [offset+4], eax |
||
554 | mov [count], edx |
||
555 | mov [buff], esi |
||
556 | mov byte [buff+4], al |
||
557 | mov [name], ebx |
||
188 | serge | 558 | |
672 | hidnplayr | 559 | pushad |
1491 | Lrz | 560 | lea ebx, [cmd] |
672 | hidnplayr | 561 | call file_system_lfn |
562 | popad |
||
563 | ret |
||
188 | serge | 564 | endp |
565 | |||
363 | serge | 566 | ; description |
567 | ; allocate kernel memory and loads the specified file |
||
568 | ; |
||
569 | ; param |
||
570 | ; file_name= full path to file |
||
571 | ; |
||
572 | ; retval |
||
573 | ; eax= file image in kernel memory |
||
574 | ; ebx= size of file |
||
575 | ; |
||
576 | ; warging |
||
577 | ; You mast call kernel_free() to delete each file |
||
578 | ; loaded by the load_file() function |
||
579 | |||
188 | serge | 580 | align 4 |
581 | proc load_file stdcall, file_name:dword |
||
672 | hidnplayr | 582 | locals |
583 | attr dd ? |
||
584 | flags dd ? |
||
585 | cr_time dd ? |
||
586 | cr_date dd ? |
||
587 | acc_time dd ? |
||
588 | acc_date dd ? |
||
589 | mod_time dd ? |
||
590 | mod_date dd ? |
||
591 | file_size dd ? |
||
188 | serge | 592 | |
672 | hidnplayr | 593 | file dd ? |
594 | file2 dd ? |
||
595 | endl |
||
188 | serge | 596 | |
672 | hidnplayr | 597 | push esi |
598 | push edi |
||
662 | serge | 599 | |
672 | hidnplayr | 600 | lea eax, [attr] |
601 | stdcall get_fileinfo, [file_name], eax |
||
602 | test eax, eax |
||
603 | jnz .fail |
||
164 | serge | 604 | |
672 | hidnplayr | 605 | mov eax, [file_size] |
606 | cmp eax, 1024*1024*16 |
||
607 | ja .fail |
||
206 | serge | 608 | |
672 | hidnplayr | 609 | stdcall kernel_alloc, [file_size] |
610 | mov [file], eax |
||
1452 | serge | 611 | test eax, eax |
612 | jz .fail |
||
164 | serge | 613 | |
672 | hidnplayr | 614 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
615 | cmp ebx, [file_size] |
||
616 | jne .cleanup |
||
211 | serge | 617 | |
672 | hidnplayr | 618 | mov eax, [file] |
619 | cmp dword [eax], 0x4B43504B |
||
620 | jne .exit |
||
621 | mov ebx, [eax+4] |
||
622 | mov [file_size], ebx |
||
623 | stdcall kernel_alloc, ebx |
||
211 | serge | 624 | |
672 | hidnplayr | 625 | test eax, eax |
626 | jz .cleanup |
||
211 | serge | 627 | |
672 | hidnplayr | 628 | mov [file2], eax |
1275 | serge | 629 | pushfd |
630 | cli |
||
672 | hidnplayr | 631 | stdcall unpack, [file], eax |
1275 | serge | 632 | popfd |
672 | hidnplayr | 633 | stdcall kernel_free, [file] |
634 | mov eax, [file2] |
||
635 | mov ebx, [file_size] |
||
211 | serge | 636 | .exit: |
672 | hidnplayr | 637 | push eax |
638 | lea edi, [eax+ebx] ;cleanup remain space |
||
639 | mov ecx, 4096 ;from file end |
||
640 | and ebx, 4095 |
||
641 | jz @f |
||
642 | sub ecx, ebx |
||
643 | xor eax, eax |
||
644 | cld |
||
645 | rep stosb |
||
521 | diamond | 646 | @@: |
672 | hidnplayr | 647 | mov ebx, [file_size] |
648 | pop eax |
||
649 | pop edi |
||
650 | pop esi |
||
651 | ret |
||
188 | serge | 652 | .cleanup: |
672 | hidnplayr | 653 | stdcall kernel_free, [file] |
188 | serge | 654 | .fail: |
672 | hidnplayr | 655 | xor eax, eax |
656 | xor ebx, ebx |
||
657 | pop edi |
||
658 | pop esi |
||
659 | ret |
||
188 | serge | 660 | endp |
164 | serge | 661 | |
188 | serge | 662 | align 4 |
663 | proc get_proc_ex stdcall, proc_name:dword, imports:dword |
||
664 | |||
665 | .look_up: |
||
672 | hidnplayr | 666 | mov edx, [imports] |
667 | test edx, edx |
||
668 | jz .end |
||
669 | mov edx, [edx] |
||
670 | test edx, edx |
||
671 | jz .end |
||
188 | serge | 672 | .next: |
672 | hidnplayr | 673 | mov eax, [edx] |
674 | test eax, eax |
||
675 | jz .next_table |
||
164 | serge | 676 | |
672 | hidnplayr | 677 | push edx |
916 | serge | 678 | stdcall strncmp, eax, [proc_name], 256 |
672 | hidnplayr | 679 | pop edx |
680 | test eax, eax |
||
681 | jz .ok |
||
164 | serge | 682 | |
672 | hidnplayr | 683 | add edx,8 |
684 | jmp .next |
||
188 | serge | 685 | .next_table: |
672 | hidnplayr | 686 | add [imports], 4 |
687 | jmp .look_up |
||
188 | serge | 688 | .ok: |
672 | hidnplayr | 689 | mov eax, [edx+4] |
690 | ret |
||
188 | serge | 691 | .end: |
672 | hidnplayr | 692 | xor eax, eax |
693 | ret |
||
188 | serge | 694 | endp |
164 | serge | 695 | |
188 | serge | 696 | align 4 |
1289 | diamond | 697 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
672 | hidnplayr | 698 | sym_count:dword, strings:dword, imports:dword |
699 | locals |
||
700 | retval dd ? |
||
701 | endl |
||
164 | serge | 702 | |
672 | hidnplayr | 703 | mov edi, [symbols] |
704 | mov [retval], 1 |
||
188 | serge | 705 | .fix: |
672 | hidnplayr | 706 | movzx ebx, [edi+CSYM.SectionNumber] |
707 | test ebx, ebx |
||
708 | jnz .internal |
||
709 | mov eax, dword [edi+CSYM.Name] |
||
710 | test eax, eax |
||
711 | jnz @F |
||
164 | serge | 712 | |
672 | hidnplayr | 713 | mov edi, [edi+4] |
714 | add edi, [strings] |
||
188 | serge | 715 | @@: |
672 | hidnplayr | 716 | push edi |
717 | stdcall get_proc_ex, edi,[imports] |
||
718 | pop edi |
||
164 | serge | 719 | |
672 | hidnplayr | 720 | xor ebx, ebx |
721 | test eax, eax |
||
722 | jnz @F |
||
164 | serge | 723 | |
672 | hidnplayr | 724 | mov esi, msg_unresolved |
725 | call sys_msg_board_str |
||
726 | mov esi, edi |
||
727 | call sys_msg_board_str |
||
728 | mov esi, msg_CR |
||
729 | call sys_msg_board_str |
||
164 | serge | 730 | |
672 | hidnplayr | 731 | mov [retval],0 |
188 | serge | 732 | @@: |
672 | hidnplayr | 733 | mov edi, [symbols] |
734 | mov [edi+CSYM.Value], eax |
||
735 | jmp .next |
||
188 | serge | 736 | .internal: |
672 | hidnplayr | 737 | cmp bx, -1 |
738 | je .next |
||
739 | cmp bx, -2 |
||
740 | je .next |
||
541 | serge | 741 | |
672 | hidnplayr | 742 | dec ebx |
743 | shl ebx, 3 |
||
744 | lea ebx, [ebx+ebx*4] |
||
745 | add ebx, [sec] |
||
188 | serge | 746 | |
672 | hidnplayr | 747 | mov eax, [ebx+CFS.VirtualAddress] |
748 | add [edi+CSYM.Value], eax |
||
188 | serge | 749 | .next: |
672 | hidnplayr | 750 | add edi, CSYM_SIZE |
751 | mov [symbols], edi |
||
752 | dec [sym_count] |
||
753 | jnz .fix |
||
754 | mov eax, [retval] |
||
755 | ret |
||
164 | serge | 756 | endp |
757 | |||
758 | align 4 |
||
1289 | diamond | 759 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
760 | delta:dword |
||
164 | serge | 761 | locals |
672 | hidnplayr | 762 | n_sec dd ? |
164 | serge | 763 | endl |
764 | |||
672 | hidnplayr | 765 | mov eax, [coff] |
766 | movzx ebx, [eax+CFH.nSections] |
||
767 | mov [n_sec], ebx |
||
1289 | diamond | 768 | lea esi, [eax+20] |
188 | serge | 769 | .fix_sec: |
164 | serge | 770 | mov edi, [esi+CFS.PtrReloc] |
672 | hidnplayr | 771 | add edi, [coff] |
164 | serge | 772 | |
672 | hidnplayr | 773 | movzx ecx, [esi+CFS.NumReloc] |
774 | test ecx, ecx |
||
775 | jz .next |
||
1289 | diamond | 776 | .reloc_loop: |
164 | serge | 777 | mov ebx, [edi+CRELOC.SymIndex] |
778 | add ebx,ebx |
||
779 | lea ebx,[ebx+ebx*8] |
||
672 | hidnplayr | 780 | add ebx, [sym] |
164 | serge | 781 | |
672 | hidnplayr | 782 | mov edx, [ebx+CSYM.Value] |
164 | serge | 783 | |
672 | hidnplayr | 784 | cmp [edi+CRELOC.Type], 6 |
785 | je .dir_32 |
||
164 | serge | 786 | |
672 | hidnplayr | 787 | cmp [edi+CRELOC.Type], 20 |
788 | jne .next_reloc |
||
188 | serge | 789 | .rel_32: |
164 | serge | 790 | mov eax, [edi+CRELOC.VirtualAddress] |
672 | hidnplayr | 791 | add eax, [esi+CFS.VirtualAddress] |
792 | sub edx, eax |
||
793 | sub edx, 4 |
||
794 | jmp .fix |
||
188 | serge | 795 | .dir_32: |
796 | mov eax, [edi+CRELOC.VirtualAddress] |
||
672 | hidnplayr | 797 | add eax, [esi+CFS.VirtualAddress] |
188 | serge | 798 | .fix: |
1289 | diamond | 799 | add eax, [delta] |
672 | hidnplayr | 800 | add [eax], edx |
1289 | diamond | 801 | .next_reloc: |
672 | hidnplayr | 802 | add edi, 10 |
803 | dec ecx |
||
1289 | diamond | 804 | jnz .reloc_loop |
188 | serge | 805 | .next: |
1289 | diamond | 806 | add esi, COFF_SECTION_SIZE |
672 | hidnplayr | 807 | dec [n_sec] |
808 | jnz .fix_sec |
||
164 | serge | 809 | .exit: |
810 | ret |
||
811 | endp |
||
812 | |||
1289 | diamond | 813 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
814 | delta:dword |
||
815 | locals |
||
816 | n_sec dd ? |
||
817 | endl |
||
818 | |||
819 | mov eax, [coff] |
||
820 | movzx ebx, [eax+CFH.nSections] |
||
821 | mov [n_sec], ebx |
||
822 | lea esi, [eax+20] |
||
823 | mov edx, [delta] |
||
824 | .fix_sec: |
||
825 | mov edi, [esi+CFS.PtrReloc] |
||
826 | add edi, [coff] |
||
827 | |||
828 | movzx ecx, [esi+CFS.NumReloc] |
||
829 | test ecx, ecx |
||
830 | jz .next |
||
831 | .reloc_loop: |
||
832 | cmp [edi+CRELOC.Type], 6 |
||
833 | jne .next_reloc |
||
834 | .dir_32: |
||
835 | mov eax, [edi+CRELOC.VirtualAddress] |
||
836 | add eax, [esi+CFS.VirtualAddress] |
||
837 | add [eax+edx], edx |
||
838 | .next_reloc: |
||
839 | add edi, 10 |
||
840 | dec ecx |
||
841 | jnz .reloc_loop |
||
842 | .next: |
||
843 | add esi, COFF_SECTION_SIZE |
||
844 | dec [n_sec] |
||
845 | jnz .fix_sec |
||
846 | .exit: |
||
847 | ret |
||
848 | endp |
||
849 | |||
188 | serge | 850 | align 4 |
346 | diamond | 851 | proc load_driver stdcall, driver_name:dword |
672 | hidnplayr | 852 | locals |
853 | coff dd ? |
||
854 | sym dd ? |
||
855 | strings dd ? |
||
856 | img_size dd ? |
||
857 | img_base dd ? |
||
858 | start dd ? |
||
188 | serge | 859 | |
672 | hidnplayr | 860 | exports dd ? ;fake exports table |
861 | dd ? |
||
862 | file_name rb 13+16+4+1 ; '/sys/drivers/ |
||
863 | endl |
||
188 | serge | 864 | |
672 | hidnplayr | 865 | lea edx, [file_name] |
866 | mov dword [edx], '/sys' |
||
867 | mov dword [edx+4], '/dri' |
||
868 | mov dword [edx+8], 'vers' |
||
869 | mov byte [edx+12], '/' |
||
870 | mov esi, [driver_name] |
||
1018 | diamond | 871 | .redo: |
872 | lea edx, [file_name] |
||
672 | hidnplayr | 873 | lea edi, [edx+13] |
874 | mov ecx, 16 |
||
346 | diamond | 875 | @@: |
672 | hidnplayr | 876 | lodsb |
877 | test al, al |
||
878 | jz @f |
||
879 | stosb |
||
880 | loop @b |
||
346 | diamond | 881 | @@: |
672 | hidnplayr | 882 | mov dword [edi], '.obj' |
883 | mov byte [edi+4], 0 |
||
884 | stdcall load_file, edx |
||
214 | serge | 885 | |
672 | hidnplayr | 886 | test eax, eax |
887 | jz .exit |
||
188 | serge | 888 | |
672 | hidnplayr | 889 | mov [coff], eax |
188 | serge | 890 | |
672 | hidnplayr | 891 | movzx ecx, [eax+CFH.nSections] |
892 | xor ebx, ebx |
||
188 | serge | 893 | |
672 | hidnplayr | 894 | lea edx, [eax+20] |
188 | serge | 895 | @@: |
672 | hidnplayr | 896 | add ebx, [edx+CFS.SizeOfRawData] |
897 | add ebx, 15 |
||
898 | and ebx, not 15 |
||
899 | add edx, COFF_SECTION_SIZE |
||
900 | dec ecx |
||
901 | jnz @B |
||
902 | mov [img_size], ebx |
||
188 | serge | 903 | |
672 | hidnplayr | 904 | stdcall kernel_alloc, ebx |
905 | test eax, eax |
||
906 | jz .fail |
||
907 | mov [img_base], eax |
||
188 | serge | 908 | |
672 | hidnplayr | 909 | mov edi, eax |
910 | xor eax, eax |
||
911 | mov ecx, [img_size] |
||
912 | add ecx, 4095 |
||
913 | and ecx, not 4095 |
||
914 | shr ecx, 2 |
||
915 | cld |
||
916 | rep stosd |
||
188 | serge | 917 | |
672 | hidnplayr | 918 | mov edx, [coff] |
919 | movzx ebx, [edx+CFH.nSections] |
||
920 | mov edi, [img_base] |
||
921 | lea eax, [edx+20] |
||
188 | serge | 922 | @@: |
672 | hidnplayr | 923 | mov [eax+CFS.VirtualAddress], edi |
924 | mov esi, [eax+CFS.PtrRawData] |
||
925 | test esi, esi |
||
926 | jnz .copy |
||
927 | add edi, [eax+CFS.SizeOfRawData] |
||
928 | jmp .next |
||
188 | serge | 929 | .copy: |
672 | hidnplayr | 930 | add esi, edx |
931 | mov ecx, [eax+CFS.SizeOfRawData] |
||
932 | cld |
||
933 | rep movsb |
||
188 | serge | 934 | .next: |
672 | hidnplayr | 935 | add edi, 15 |
936 | and edi, not 15 |
||
937 | add eax, COFF_SECTION_SIZE |
||
938 | dec ebx |
||
939 | jnz @B |
||
188 | serge | 940 | |
672 | hidnplayr | 941 | mov ebx, [edx+CFH.pSymTable] |
942 | add ebx, edx |
||
943 | mov [sym], ebx |
||
944 | mov ecx, [edx+CFH.nSymbols] |
||
945 | add ecx,ecx |
||
946 | lea ecx,[ecx+ecx*8] ;ecx*=18 = nSymbols*CSYM_SIZE |
||
947 | add ecx, [sym] |
||
948 | mov [strings], ecx |
||
188 | serge | 949 | |
672 | hidnplayr | 950 | lea ebx, [exports] |
951 | mov dword [ebx], kernel_export |
||
952 | mov dword [ebx+4], 0 |
||
953 | lea eax, [edx+20] |
||
188 | serge | 954 | |
672 | hidnplayr | 955 | stdcall fix_coff_symbols, eax, [sym], [edx+CFH.nSymbols],\ |
956 | [strings], ebx |
||
957 | test eax, eax |
||
958 | jz .link_fail |
||
188 | serge | 959 | |
672 | hidnplayr | 960 | mov ebx, [coff] |
1289 | diamond | 961 | stdcall fix_coff_relocs, ebx, [sym], 0 |
188 | serge | 962 | |
672 | hidnplayr | 963 | stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szVersion |
964 | test eax, eax |
||
965 | jz .link_fail |
||
227 | serge | 966 | |
672 | hidnplayr | 967 | mov eax, [eax] |
968 | shr eax, 16 |
||
969 | cmp eax, DRV_COMPAT |
||
970 | jb .ver_fail |
||
227 | serge | 971 | |
672 | hidnplayr | 972 | cmp eax, DRV_CURRENT |
973 | ja .ver_fail |
||
227 | serge | 974 | |
672 | hidnplayr | 975 | mov ebx, [coff] |
976 | stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szSTART |
||
977 | mov [start], eax |
||
188 | serge | 978 | |
672 | hidnplayr | 979 | stdcall kernel_free, [coff] |
188 | serge | 980 | |
672 | hidnplayr | 981 | mov ebx, [start] |
982 | stdcall ebx, DRV_ENTRY |
||
983 | test eax, eax |
||
984 | jnz .ok |
||
188 | serge | 985 | |
672 | hidnplayr | 986 | stdcall kernel_free, [img_base] |
1018 | diamond | 987 | cmp dword [file_name+13], 'SOUN' |
988 | jnz @f |
||
989 | cmp dword [file_name+17], 'D.ob' |
||
990 | jnz @f |
||
991 | cmp word [file_name+21], 'j' |
||
992 | jnz @f |
||
993 | mov esi, aSis |
||
994 | jmp .redo |
||
995 | @@: |
||
672 | hidnplayr | 996 | xor eax, eax |
997 | ret |
||
188 | serge | 998 | .ok: |
672 | hidnplayr | 999 | mov ebx, [img_base] |
1000 | mov [eax+SRV.base], ebx |
||
1001 | mov ecx, [start] |
||
1002 | mov [eax+SRV.entry], ecx |
||
1003 | ret |
||
227 | serge | 1004 | |
1005 | .ver_fail: |
||
672 | hidnplayr | 1006 | mov esi, msg_CR |
1007 | call sys_msg_board_str |
||
1008 | mov esi, [driver_name] |
||
1009 | call sys_msg_board_str |
||
1010 | mov esi, msg_CR |
||
1011 | call sys_msg_board_str |
||
1012 | mov esi, msg_version |
||
1013 | call sys_msg_board_str |
||
1014 | mov esi, msg_www |
||
1015 | call sys_msg_board_str |
||
1016 | jmp .cleanup |
||
227 | serge | 1017 | |
1018 | .link_fail: |
||
672 | hidnplayr | 1019 | mov esi, msg_module |
1020 | call sys_msg_board_str |
||
1021 | mov esi, [driver_name] |
||
1022 | call sys_msg_board_str |
||
1023 | mov esi, msg_CR |
||
1024 | call sys_msg_board_str |
||
227 | serge | 1025 | .cleanup: |
672 | hidnplayr | 1026 | stdcall kernel_free,[img_base] |
188 | serge | 1027 | .fail: |
672 | hidnplayr | 1028 | stdcall kernel_free, [coff] |
227 | serge | 1029 | .exit: |
672 | hidnplayr | 1030 | xor eax, eax |
1031 | ret |
||
164 | serge | 1032 | endp |
1033 | |||
1296 | diamond | 1034 | ; in: edx -> COFF_SECTION struct |
1035 | ; out: eax = alignment as mask for bits to drop |
||
1036 | coff_get_align: |
||
1037 | ; Rules: |
||
1038 | ; - if alignment is not given, use default = 4K; |
||
1039 | ; - if alignment is given and is no more than 4K, use it; |
||
1040 | ; - if alignment is more than 4K, revert to 4K. |
||
1041 | push ecx |
||
1042 | mov cl, byte [edx+CFS.Characteristics+2] |
||
1043 | mov eax, 1 |
||
1044 | shr cl, 4 |
||
1045 | dec cl |
||
1046 | js .default |
||
1047 | cmp cl, 12 |
||
1048 | jbe @f |
||
1049 | .default: |
||
1050 | mov cl, 12 |
||
1051 | @@: |
||
1052 | shl eax, cl |
||
1053 | pop ecx |
||
1054 | dec eax |
||
1055 | ret |
||
1056 | |||
198 | serge | 1057 | align 4 |
1058 | proc load_library stdcall, file_name:dword |
||
672 | hidnplayr | 1059 | locals |
1289 | diamond | 1060 | fullname rb 260 |
1061 | fileinfo rb 40 |
||
672 | hidnplayr | 1062 | coff dd ? |
1063 | img_base dd ? |
||
1064 | endl |
||
198 | serge | 1065 | |
672 | hidnplayr | 1066 | cli |
198 | serge | 1067 | |
1289 | diamond | 1068 | ; resolve file name |
1069 | mov ebx, [file_name] |
||
1070 | lea edi, [fullname+1] |
||
1071 | mov byte [edi-1], '/' |
||
1072 | stdcall get_full_file_name, edi, 259 |
||
1073 | test al, al |
||
1074 | jz .fail |
||
1075 | |||
1076 | ; scan for required DLL in list of already loaded for this process, |
||
1077 | ; ignore timestamp |
||
1078 | mov esi, [CURRENT_TASK] |
||
1079 | shl esi, 8 |
||
1080 | lea edi, [fullname] |
||
1311 | diamond | 1081 | mov ebx, [esi+SLOT_BASE+APPDATA.dlls_list_ptr] |
1082 | test ebx, ebx |
||
1083 | jz .not_in_process |
||
1084 | mov esi, [ebx+HDLL.fd] |
||
1289 | diamond | 1085 | .scan_in_process: |
1086 | cmp esi, ebx |
||
1087 | jz .not_in_process |
||
1088 | mov eax, [esi+HDLL.parent] |
||
1089 | add eax, DLLDESCR.name |
||
1090 | stdcall strncmp, eax, edi, -1 |
||
672 | hidnplayr | 1091 | test eax, eax |
1289 | diamond | 1092 | jnz .next_in_process |
1093 | ; simple variant: load DLL which is already loaded in this process |
||
1094 | ; just increment reference counters and return address of exports table |
||
1095 | inc [esi+HDLL.refcount] |
||
1096 | mov ecx, [esi+HDLL.parent] |
||
1097 | inc [ecx+DLLDESCR.refcount] |
||
1098 | mov eax, [ecx+DLLDESCR.exports] |
||
1099 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
1100 | add eax, [esi+HDLL.base] |
||
1101 | ret |
||
1102 | .next_in_process: |
||
1311 | diamond | 1103 | mov esi, [esi+HDLL.fd] |
1289 | diamond | 1104 | jmp .scan_in_process |
1105 | .not_in_process: |
||
1106 | |||
1107 | ; scan in full list, compare timestamp |
||
1108 | lea eax, [fileinfo] |
||
1109 | stdcall get_fileinfo, edi, eax |
||
1110 | test eax, eax |
||
1111 | jnz .fail |
||
1112 | mov esi, [dll_list.fd] |
||
1113 | .scan_for_dlls: |
||
1114 | cmp esi, dll_list |
||
1115 | jz .load_new |
||
1116 | lea eax, [esi+DLLDESCR.name] |
||
1117 | stdcall strncmp, eax, edi, -1 |
||
1118 | test eax, eax |
||
1119 | jnz .continue_scan |
||
1120 | .test_prev_dll: |
||
1121 | mov eax, dword [fileinfo+24] ; last modified time |
||
1122 | mov edx, dword [fileinfo+28] ; last modified date |
||
1123 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
1124 | jnz .continue_scan |
||
1125 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
1126 | jz .dll_already_loaded |
||
1127 | .continue_scan: |
||
1128 | mov esi, [esi+DLLDESCR.fd] |
||
1129 | jmp .scan_for_dlls |
||
1130 | |||
1131 | ; new DLL |
||
1132 | .load_new: |
||
1133 | ; load file |
||
1134 | stdcall load_file, edi |
||
1135 | test eax, eax |
||
672 | hidnplayr | 1136 | jz .fail |
1289 | diamond | 1137 | mov [coff], eax |
1138 | mov dword [fileinfo+32], ebx |
||
198 | serge | 1139 | |
1289 | diamond | 1140 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
1141 | mov esi, edi |
||
1142 | mov ecx, -1 |
||
1143 | xor eax, eax |
||
1144 | repnz scasb |
||
1145 | not ecx |
||
1146 | lea eax, [ecx+DLLDESCR.sizeof] |
||
1147 | push ecx |
||
1148 | call malloc |
||
1149 | pop ecx |
||
1150 | test eax, eax |
||
1151 | jz .fail_and_free_coff |
||
1152 | ; save timestamp |
||
1153 | lea edi, [eax+DLLDESCR.name] |
||
1154 | rep movsb |
||
1155 | mov esi, eax |
||
1156 | mov eax, dword [fileinfo+24] |
||
1157 | mov dword [esi+DLLDESCR.timestamp], eax |
||
1158 | mov eax, dword [fileinfo+28] |
||
1159 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1160 | ; initialize DLLDESCR struct |
||
1161 | and dword [esi+DLLDESCR.refcount], 0 ; no HDLLs yet; later it will be incremented |
||
1162 | mov [esi+DLLDESCR.fd], dll_list |
||
1163 | mov eax, [dll_list.bk] |
||
1164 | mov [dll_list.bk], esi |
||
1165 | mov [esi+DLLDESCR.bk], eax |
||
1166 | mov [eax+DLLDESCR.fd], esi |
||
1167 | |||
1168 | ; calculate size of loaded DLL |
||
1169 | mov edx, [coff] |
||
1170 | movzx ecx, [edx+CFH.nSections] |
||
672 | hidnplayr | 1171 | xor ebx, ebx |
198 | serge | 1172 | |
1289 | diamond | 1173 | add edx, 20 |
198 | serge | 1174 | @@: |
1296 | diamond | 1175 | call coff_get_align |
1176 | add ebx, eax |
||
1177 | not eax |
||
1178 | and ebx, eax |
||
672 | hidnplayr | 1179 | add ebx, [edx+CFS.SizeOfRawData] |
1180 | add edx, COFF_SECTION_SIZE |
||
1181 | dec ecx |
||
1182 | jnz @B |
||
1289 | diamond | 1183 | ; it must be nonzero and not too big |
1184 | mov [esi+DLLDESCR.size], ebx |
||
1185 | test ebx, ebx |
||
1186 | jz .fail_and_free_dll |
||
1187 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1188 | ja .fail_and_free_dll |
||
1189 | ; allocate memory for kernel-side image |
||
1190 | stdcall kernel_alloc, ebx |
||
672 | hidnplayr | 1191 | test eax, eax |
1289 | diamond | 1192 | jz .fail_and_free_dll |
1193 | mov [esi+DLLDESCR.data], eax |
||
1194 | ; calculate preferred base address |
||
1195 | add ebx, 0x1FFF |
||
1196 | and ebx, not 0xFFF |
||
1197 | mov ecx, [dll_cur_addr] |
||
1198 | lea edx, [ecx+ebx] |
||
1199 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1200 | jb @f |
||
1201 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1202 | lea edx, [ecx+ebx] |
||
1203 | @@: |
||
1204 | mov [esi+DLLDESCR.defaultbase], ecx |
||
1205 | mov [dll_cur_addr], edx |
||
198 | serge | 1206 | |
1289 | diamond | 1207 | ; copy sections and set correct values for VirtualAddress'es in headers |
1208 | push esi |
||
672 | hidnplayr | 1209 | mov edx, [coff] |
1210 | movzx ebx, [edx+CFH.nSections] |
||
1289 | diamond | 1211 | mov edi, eax |
1212 | add edx, 20 |
||
1213 | cld |
||
198 | serge | 1214 | @@: |
1296 | diamond | 1215 | call coff_get_align |
1216 | add ecx, eax |
||
1217 | add edi, eax |
||
1218 | not eax |
||
1219 | and ecx, eax |
||
1220 | and edi, eax |
||
1289 | diamond | 1221 | mov [edx+CFS.VirtualAddress], ecx |
1222 | add ecx, [edx+CFS.SizeOfRawData] |
||
1223 | mov esi, [edx+CFS.PtrRawData] |
||
1224 | push ecx |
||
1225 | mov ecx, [edx+CFS.SizeOfRawData] |
||
672 | hidnplayr | 1226 | test esi, esi |
1227 | jnz .copy |
||
1296 | diamond | 1228 | xor eax, eax |
1289 | diamond | 1229 | rep stosb |
672 | hidnplayr | 1230 | jmp .next |
198 | serge | 1231 | .copy: |
1289 | diamond | 1232 | add esi, [coff] |
672 | hidnplayr | 1233 | rep movsb |
198 | serge | 1234 | .next: |
1289 | diamond | 1235 | pop ecx |
1236 | add edx, COFF_SECTION_SIZE |
||
672 | hidnplayr | 1237 | dec ebx |
1238 | jnz @B |
||
1289 | diamond | 1239 | pop esi |
198 | serge | 1240 | |
1289 | diamond | 1241 | ; save some additional data from COFF file |
1242 | ; later we will use COFF header, headers for sections and symbol table |
||
1243 | ; and also relocations table for all sections |
||
1244 | mov edx, [coff] |
||
672 | hidnplayr | 1245 | mov ebx, [edx+CFH.pSymTable] |
1289 | diamond | 1246 | mov edi, dword [fileinfo+32] |
1247 | sub edi, ebx |
||
1248 | jc .fail_and_free_data |
||
1249 | mov [esi+DLLDESCR.symbols_lim], edi |
||
672 | hidnplayr | 1250 | add ebx, edx |
1289 | diamond | 1251 | movzx ecx, [edx+CFH.nSections] |
1252 | lea ecx, [ecx*5] |
||
1253 | lea edi, [edi+ecx*8+20] |
||
1254 | add edx, 20 |
||
1255 | @@: |
||
1256 | movzx eax, [edx+CFS.NumReloc] |
||
1257 | lea eax, [eax*5] |
||
1258 | lea edi, [edi+eax*2] |
||
1259 | add edx, COFF_SECTION_SIZE |
||
1260 | sub ecx, 5 |
||
1261 | jnz @b |
||
1262 | stdcall kernel_alloc, edi |
||
1263 | test eax, eax |
||
1264 | jz .fail_and_free_data |
||
1265 | mov edx, [coff] |
||
1266 | movzx ecx, [edx+CFH.nSections] |
||
1267 | lea ecx, [ecx*5] |
||
1268 | lea ecx, [ecx*2+5] |
||
1269 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1270 | push esi |
||
1271 | mov esi, edx |
||
1272 | mov edi, eax |
||
1273 | rep movsd |
||
1274 | pop esi |
||
1275 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1276 | push esi |
||
672 | hidnplayr | 1277 | mov ecx, [edx+CFH.nSymbols] |
1289 | diamond | 1278 | mov [esi+DLLDESCR.symbols_num], ecx |
1279 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1280 | mov esi, ebx |
||
1281 | rep movsb |
||
1282 | pop esi |
||
1283 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1284 | push esi |
||
1285 | movzx eax, [edx+CFH.nSections] |
||
1286 | lea edx, [ebx+20] |
||
1287 | @@: |
||
1288 | movzx ecx, [edx+CFS.NumReloc] |
||
1289 | lea ecx, [ecx*5] |
||
1290 | mov esi, [edx+CFS.PtrReloc] |
||
1291 | mov [edx+CFS.PtrReloc], edi |
||
1292 | sub [edx+CFS.PtrReloc], ebx |
||
1293 | add esi, [coff] |
||
1294 | shr ecx, 1 |
||
1295 | rep movsd |
||
1296 | adc ecx, ecx |
||
1297 | rep movsw |
||
1298 | add edx, COFF_SECTION_SIZE |
||
1299 | dec eax |
||
1300 | jnz @b |
||
1301 | pop esi |
||
198 | serge | 1302 | |
1289 | diamond | 1303 | ; fixup symbols |
1304 | mov edx, ebx |
||
1305 | mov eax, [ebx+CFH.nSymbols] |
||
1306 | add edx, 20 |
||
1307 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1308 | lea ecx, [ecx*9] |
||
1309 | add ecx, ecx |
||
1310 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
198 | serge | 1311 | |
1289 | diamond | 1312 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax,\ |
1313 | ecx, 0 |
||
1314 | ; test eax, eax |
||
1315 | ; jnz @F |
||
1316 | ; |
||
1317 | ;@@: |
||
1318 | |||
1319 | stdcall get_coff_sym,[esi+DLLDESCR.symbols_ptr],[ebx+CFH.nSymbols],szEXPORTS |
||
672 | hidnplayr | 1320 | test eax, eax |
1321 | jnz @F |
||
198 | serge | 1322 | |
1289 | diamond | 1323 | stdcall get_coff_sym,[esi+DLLDESCR.symbols_ptr],[ebx+CFH.nSymbols],sz_EXPORTS |
198 | serge | 1324 | @@: |
1289 | diamond | 1325 | mov [esi+DLLDESCR.exports], eax |
198 | serge | 1326 | |
1289 | diamond | 1327 | ; fix relocs in the hidden copy in kernel memory to default address |
1328 | ; it is first fix; usually this will be enough, but second fix |
||
1329 | ; can be necessary if real load address will not equal assumption |
||
1330 | mov eax, [esi+DLLDESCR.data] |
||
1331 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1332 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
198 | serge | 1333 | |
1289 | diamond | 1334 | stdcall kernel_free, [coff] |
916 | serge | 1335 | |
1289 | diamond | 1336 | .dll_already_loaded: |
1337 | inc [esi+DLLDESCR.refcount] |
||
1338 | push esi |
||
1339 | call init_heap |
||
1340 | pop esi |
||
1341 | |||
1342 | mov edi, [esi+DLLDESCR.size] |
||
1343 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1344 | test eax, eax |
||
1345 | jnz @f |
||
1346 | stdcall user_alloc, edi |
||
1347 | test eax, eax |
||
1348 | jz .fail_and_dereference |
||
917 | diamond | 1349 | @@: |
1289 | diamond | 1350 | mov [img_base], eax |
1311 | diamond | 1351 | mov eax, HDLL.sizeof |
1352 | call malloc |
||
1353 | test eax, eax |
||
1354 | jz .fail_and_free_user |
||
1289 | diamond | 1355 | mov ebx, [CURRENT_TASK] |
1356 | shl ebx, 5 |
||
1311 | diamond | 1357 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
1358 | mov [eax+HDLL.pid], edx |
||
1359 | push eax |
||
1360 | call init_dlls_in_thread |
||
1361 | pop ebx |
||
1289 | diamond | 1362 | test eax, eax |
1311 | diamond | 1363 | jz .fail_and_free_user |
1364 | mov edx, [eax+HDLL.fd] |
||
1365 | mov [ebx+HDLL.fd], edx |
||
1366 | mov [ebx+HDLL.bk], eax |
||
1367 | mov [eax+HDLL.fd], ebx |
||
1368 | mov [edx+HDLL.bk], ebx |
||
1369 | mov eax, ebx |
||
1289 | diamond | 1370 | mov ebx, [img_base] |
1371 | mov [eax+HDLL.base], ebx |
||
1372 | mov [eax+HDLL.size], edi |
||
1373 | mov [eax+HDLL.refcount], 1 |
||
1374 | mov [eax+HDLL.parent], esi |
||
1375 | mov edx, ebx |
||
1376 | shr edx, 12 |
||
1377 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1378 | ; copy entries of page table from kernel-side image to usermode |
||
1379 | ; use copy-on-write for user-mode image, so map as readonly |
||
1380 | xor edi, edi |
||
1381 | mov ecx, [esi+DLLDESCR.data] |
||
1382 | shr ecx, 12 |
||
1383 | .map_pages_loop: |
||
1384 | mov eax, [page_tabs+ecx*4] |
||
1385 | and eax, not 0xFFF |
||
1386 | or al, PG_USER |
||
1387 | xchg eax, [page_tabs+edx*4] |
||
1388 | test al, 1 |
||
1389 | jz @f |
||
1390 | call free_page |
||
1391 | @@: |
||
1392 | invlpg [ebx+edi] |
||
1393 | inc ecx |
||
1394 | inc edx |
||
1395 | add edi, 0x1000 |
||
1396 | cmp edi, [esi+DLLDESCR.size] |
||
1397 | jb .map_pages_loop |
||
1398 | |||
1399 | ; if real user-mode base is not equal to preferred base, relocate image |
||
1400 | sub ebx, [esi+DLLDESCR.defaultbase] |
||
1401 | jz @f |
||
1402 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1403 | @@: |
||
1404 | |||
1405 | mov eax, [esi+DLLDESCR.exports] |
||
1406 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1407 | add eax, [img_base] |
||
1408 | ret |
||
1409 | .fail_and_free_data: |
||
1410 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1411 | .fail_and_free_dll: |
||
1412 | mov eax, esi |
||
1413 | call free |
||
1414 | .fail_and_free_coff: |
||
672 | hidnplayr | 1415 | stdcall kernel_free, [coff] |
198 | serge | 1416 | .fail: |
672 | hidnplayr | 1417 | xor eax, eax |
1418 | ret |
||
1289 | diamond | 1419 | .fail_and_free_user: |
1420 | stdcall user_free, [img_base] |
||
1421 | .fail_and_dereference: |
||
1422 | mov eax, 1 ; delete 1 reference |
||
1423 | call dereference_dll |
||
1424 | xor eax, eax |
||
1425 | ret |
||
198 | serge | 1426 | endp |
1427 | |||
1311 | diamond | 1428 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
1429 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1430 | ; kept in sync for all threads of one process. |
||
1431 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1432 | ; NULL if memory allocation failed |
||
1433 | init_dlls_in_thread: |
||
1434 | mov ebx, [current_slot] |
||
1435 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
1436 | test eax, eax |
||
1437 | jnz .ret |
||
1438 | push [ebx+APPDATA.dir_table] |
||
1439 | mov eax, 8 |
||
1440 | call malloc |
||
1441 | pop edx |
||
1442 | test eax, eax |
||
1443 | jz .ret |
||
1444 | mov [eax], eax |
||
1445 | mov [eax+4], eax |
||
1446 | mov ecx, [TASK_COUNT] |
||
1447 | mov ebx, SLOT_BASE+256 |
||
1448 | .set: |
||
1449 | cmp [ebx+APPDATA.dir_table], edx |
||
1450 | jnz @f |
||
1451 | mov [ebx+APPDATA.dlls_list_ptr], eax |
||
1452 | @@: |
||
1453 | add ebx, 256 |
||
1454 | dec ecx |
||
1455 | jnz .set |
||
1456 | .ret: |
||
1457 | ret |
||
1458 | |||
1289 | diamond | 1459 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
1460 | dereference_dll: |
||
1461 | sub [esi+DLLDESCR.refcount], eax |
||
1462 | jnz .ret |
||
1463 | mov eax, [esi+DLLDESCR.fd] |
||
1464 | mov edx, [esi+DLLDESCR.bk] |
||
1465 | mov [eax+DLLDESCR.bk], edx |
||
1466 | mov [edx+DLLDESCR.fd], eax |
||
1292 | diamond | 1467 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
1289 | diamond | 1468 | stdcall kernel_free, [esi+DLLDESCR.data] |
1469 | mov eax, esi |
||
1470 | call free |
||
1471 | .ret: |
||
1472 | ret |
||
1473 | |||
1474 | destroy_hdll: |
||
1311 | diamond | 1475 | push ebx ecx esi edi |
1289 | diamond | 1476 | push eax |
1477 | mov ebx, [eax+HDLL.base] |
||
1478 | mov esi, [eax+HDLL.parent] |
||
1479 | mov edx, [esi+DLLDESCR.size] |
||
1292 | diamond | 1480 | ; The following actions require the context of application where HDLL is mapped. |
1481 | ; However, destroy_hdll can be called in the context of OS thread when |
||
1482 | ; cleaning up objects created by the application which is destroyed. |
||
1483 | ; So remember current cr3 and set it to page table of target. |
||
1311 | diamond | 1484 | mov eax, [ecx+APPDATA.dir_table] |
1292 | diamond | 1485 | ; Because we cheat with cr3, disable interrupts: task switch would restore |
1486 | ; page table from APPDATA of current thread. |
||
1487 | ; Also set [current_slot] because it is used by user_free. |
||
1488 | pushf |
||
1489 | cli |
||
1490 | push [current_slot] |
||
1311 | diamond | 1491 | mov [current_slot], ecx |
1492 | mov ecx, cr3 |
||
1493 | push ecx |
||
1494 | mov cr3, eax |
||
1292 | diamond | 1495 | push ebx ; argument for user_free |
1289 | diamond | 1496 | mov eax, ebx |
1497 | shr ebx, 12 |
||
1498 | push ebx |
||
1499 | mov esi, [esi+DLLDESCR.data] |
||
1500 | shr esi, 12 |
||
1501 | .unmap_loop: |
||
1502 | push eax |
||
1503 | mov eax, 2 |
||
1504 | xchg eax, [page_tabs+ebx*4] |
||
1292 | diamond | 1505 | mov ecx, [page_tabs+esi*4] |
1506 | and eax, not 0xFFF |
||
1507 | and ecx, not 0xFFF |
||
1508 | cmp eax, ecx |
||
1509 | jz @f |
||
1289 | diamond | 1510 | call free_page |
1511 | @@: |
||
1512 | pop eax |
||
1513 | invlpg [eax] |
||
1514 | add eax, 0x1000 |
||
1515 | inc ebx |
||
1516 | inc esi |
||
1517 | sub edx, 0x1000 |
||
1518 | ja .unmap_loop |
||
1292 | diamond | 1519 | pop ebx |
1289 | diamond | 1520 | and dword [page_tabs+(ebx-1)*4], not DONT_FREE_BLOCK |
1292 | diamond | 1521 | call user_free |
1522 | ; Restore context. |
||
1523 | pop eax |
||
1524 | mov cr3, eax |
||
1525 | pop [current_slot] |
||
1526 | popf |
||
1527 | ; Ok, cheating is done. |
||
1528 | pop eax |
||
1529 | push eax |
||
1289 | diamond | 1530 | mov esi, [eax+HDLL.parent] |
1531 | mov eax, [eax+HDLL.refcount] |
||
1532 | call dereference_dll |
||
1533 | pop eax |
||
1311 | diamond | 1534 | mov edx, [eax+HDLL.bk] |
1535 | mov ebx, [eax+HDLL.fd] |
||
1536 | mov [ebx+HDLL.bk], edx |
||
1537 | mov [edx+HDLL.fd], ebx |
||
1538 | call free |
||
1539 | pop edi esi ecx ebx |
||
1289 | diamond | 1540 | ret |
1541 | |||
1311 | diamond | 1542 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
1543 | destroy_all_hdlls: |
||
1544 | test esi, esi |
||
1545 | jz .ret |
||
1546 | .loop: |
||
1547 | mov eax, [esi+HDLL.fd] |
||
1548 | cmp eax, esi |
||
1549 | jz free |
||
1550 | call destroy_hdll |
||
1551 | jmp .loop |
||
1552 | .ret: |
||
1553 | ret |
||
1554 | |||
214 | serge | 1555 | align 4 |
1275 | serge | 1556 | stop_all_services: |
1557 | push ebp |
||
672 | hidnplayr | 1558 | mov edx, [srv.fd] |
214 | serge | 1559 | .next: |
672 | hidnplayr | 1560 | cmp edx, srv.fd-SRV_FD_OFFSET |
1561 | je .done |
||
1562 | cmp [edx+SRV.magic], ' SRV' |
||
1563 | jne .next |
||
1275 | serge | 1564 | cmp [edx+SRV.size], SRV.sizeof |
672 | hidnplayr | 1565 | jne .next |
732 | serge | 1566 | |
769 | Rus | 1567 | mov ebx, [edx+SRV.entry] |
672 | hidnplayr | 1568 | mov edx, [edx+SRV.fd] |
769 | Rus | 1569 | test ebx, ebx |
1570 | jz .next |
||
732 | serge | 1571 | |
769 | Rus | 1572 | push edx |
1316 | serge | 1573 | mov ebp, esp |
1574 | push 0 |
||
1575 | push -1 |
||
1576 | call ebx |
||
1577 | mov esp, ebp |
||
672 | hidnplayr | 1578 | pop edx |
1579 | jmp .next |
||
278 | serge | 1580 | .done: |
1275 | serge | 1581 | pop ebp |
672 | hidnplayr | 1582 | ret |
198 | serge | 1583 | |
281 | serge | 1584 | ; param |
291 | serge | 1585 | ; eax= size |
1586 | ; ebx= pid |
||
214 | serge | 1587 | |
281 | serge | 1588 | align 4 |
1589 | create_kernel_object: |
||
1590 | |||
672 | hidnplayr | 1591 | push ebx |
1592 | call malloc |
||
1593 | pop ebx |
||
1594 | test eax, eax |
||
1595 | jz .fail |
||
281 | serge | 1596 | |
672 | hidnplayr | 1597 | mov ecx,[current_slot] |
1598 | add ecx, APP_OBJ_OFFSET |
||
281 | serge | 1599 | |
672 | hidnplayr | 1600 | pushfd |
1601 | cli |
||
1602 | mov edx, [ecx+APPOBJ.fd] |
||
1603 | mov [eax+APPOBJ.fd], edx |
||
1604 | mov [eax+APPOBJ.bk], ecx |
||
1605 | mov [eax+APPOBJ.pid], ebx |
||
281 | serge | 1606 | |
672 | hidnplayr | 1607 | mov [ecx+APPOBJ.fd], eax |
1608 | mov [edx+APPOBJ.bk], eax |
||
1609 | popfd |
||
281 | serge | 1610 | .fail: |
672 | hidnplayr | 1611 | ret |
281 | serge | 1612 | |
1613 | ; param |
||
1614 | ; eax= object |
||
1615 | |||
1616 | align 4 |
||
1617 | destroy_kernel_object: |
||
1618 | |||
672 | hidnplayr | 1619 | pushfd |
1620 | cli |
||
1621 | mov ebx, [eax+APPOBJ.fd] |
||
1622 | mov ecx, [eax+APPOBJ.bk] |
||
1623 | mov [ebx+APPOBJ.bk], ecx |
||
1624 | mov [ecx+APPOBJ.fd], ebx |
||
1625 | popfd |
||
281 | serge | 1626 | |
672 | hidnplayr | 1627 | xor edx, edx ;clear common header |
1628 | mov [eax], edx |
||
1629 | mov [eax+4], edx |
||
1630 | mov [eax+8], edx |
||
1631 | mov [eax+12], edx |
||
1632 | mov [eax+16], edx |
||
281 | serge | 1633 | |
672 | hidnplayr | 1634 | call free ;release object memory |
1635 | ret |
||
281 | serge | 1636 | |
1637 | |||
164 | serge | 1638 | |
465 | serge | 1639 | if 0 |
164 | serge | 1640 | |
465 | serge | 1641 | irq: |
188 | serge | 1642 | |
465 | serge | 1643 | .irq0: |
672 | hidnplayr | 1644 | pusfd |
1645 | pushad |
||
1646 | push IRQ_0 |
||
1647 | jmp .master |
||
465 | serge | 1648 | .irq_1: |
672 | hidnplayr | 1649 | pusfd |
1650 | pushad |
||
1651 | push IRQ_1 |
||
1652 | jmp .master |
||
465 | serge | 1653 | |
1654 | .master: |
||
672 | hidnplayr | 1655 | mov ax, app_data |
1656 | mov ds, eax |
||
1657 | mov es, eax |
||
1658 | mov ebx, [esp+4] ;IRQ_xx |
||
1659 | mov eax, [irq_handlers+ebx+4] |
||
1660 | call intr_handler |
||
1661 | mov ecx, [esp+4] |
||
1662 | cmp [irq_actids+ecx*4], 0 |
||
1663 | je @F |
||
1664 | in al, 0x21 |
||
1665 | bts eax, ecx |
||
1666 | out 0x21, al |
||
1667 | mov al, 0x20 |
||
1668 | out 0x20, al |
||
1669 | jmp .restart |
||
465 | serge | 1670 | |
1671 | .slave: |
||
672 | hidnplayr | 1672 | mov ax, app_data |
1673 | mov ds, eax |
||
1674 | mov es, eax |
||
1675 | mov ebx, [esp+4] ;IRQ_xx |
||
1676 | mov eax, [irq_handlers+ebx+4] |
||
1677 | call intr_handler |
||
1678 | mov ecx, [esp+4] |
||
1679 | sub ecx, 8 |
||
1680 | cmp [irq_actids+ecx*4], 0 |
||
1681 | je @F |
||
1682 | in al, 0xA1 |
||
1683 | bts eax, ecx |
||
1684 | out 0xA1, al |
||
1685 | mov al, 0x20 |
||
1686 | out 0xA0, al |
||
1687 | out 0x20, al |
||
465 | serge | 1688 | .restart: |
672 | hidnplayr | 1689 | mov ebx, [next_slot] |
1690 | test ebx, ebx |
||
1691 | jz @F |
||
1692 | mov [next_task],0 |
||
1693 | mov esi, [prev_slot] |
||
1694 | call do_change_task |
||
1695 | add esp, 4 |
||
1696 | iretd |
||
465 | serge | 1697 | |
1698 | end if |
||
1699 |