Rev 3232 | Rev 3555 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
2465 | Serge | 3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
431 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
164 | serge | 7 | |
593 | mikedld | 8 | $Revision: 3500 $ |
9 | |||
10 | |||
465 | serge | 11 | DRV_COMPAT equ 5 ;minimal required drivers version |
2106 | serge | 12 | DRV_CURRENT equ 6 ;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 | |
774 | Rus | 18 | |
164 | serge | 19 | align 4 |
20 | proc get_notify stdcall, p_ev:dword |
||
21 | |||
22 | .wait: |
||
2434 | Serge | 23 | mov ebx, [current_slot] |
24 | test dword [ebx+APPDATA.event_mask], EVENT_NOTIFY |
||
25 | jz @f |
||
26 | and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY |
||
27 | mov edi, [p_ev] |
||
28 | mov dword [edi], EV_INTR |
||
29 | mov eax, [ebx+APPDATA.event] |
||
30 | mov dword [edi+4], eax |
||
31 | ret |
||
164 | serge | 32 | @@: |
2434 | Serge | 33 | call change_task |
34 | jmp .wait |
||
164 | serge | 35 | endp |
36 | |||
37 | align 4 |
||
38 | proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword |
||
2434 | Serge | 39 | push ebx |
40 | xor eax, eax |
||
41 | xor ebx, ebx |
||
42 | mov ah, byte [bus] |
||
43 | mov al, 6 |
||
44 | mov bh, byte [devfn] |
||
45 | mov bl, byte [reg] |
||
46 | call pci_read_reg |
||
47 | pop ebx |
||
48 | ret |
||
164 | serge | 49 | endp |
50 | |||
51 | align 4 |
||
557 | serge | 52 | proc pci_read16 stdcall, bus:dword, devfn:dword, reg:dword |
2434 | Serge | 53 | push ebx |
54 | xor eax, eax |
||
55 | xor ebx, ebx |
||
56 | mov ah, byte [bus] |
||
57 | mov al, 5 |
||
58 | mov bh, byte [devfn] |
||
59 | mov bl, byte [reg] |
||
60 | call pci_read_reg |
||
61 | pop ebx |
||
62 | ret |
||
557 | serge | 63 | endp |
64 | |||
65 | align 4 |
||
164 | serge | 66 | proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword |
2434 | Serge | 67 | push ebx |
68 | xor eax, eax |
||
69 | xor ebx, ebx |
||
70 | mov ah, byte [bus] |
||
71 | mov al, 4 |
||
72 | mov bh, byte [devfn] |
||
73 | mov bl, byte [reg] |
||
74 | call pci_read_reg |
||
75 | pop ebx |
||
76 | ret |
||
164 | serge | 77 | endp |
78 | |||
79 | align 4 |
||
80 | proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
2434 | Serge | 81 | push ebx |
82 | xor eax, eax |
||
83 | xor ebx, ebx |
||
84 | mov ah, byte [bus] |
||
85 | mov al, 8 |
||
86 | mov bh, byte [devfn] |
||
87 | mov bl, byte [reg] |
||
88 | mov ecx, [val] |
||
89 | call pci_write_reg |
||
90 | pop ebx |
||
91 | ret |
||
164 | serge | 92 | endp |
93 | |||
557 | serge | 94 | align 4 |
95 | proc pci_write16 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
2434 | Serge | 96 | push ebx |
97 | xor eax, eax |
||
98 | xor ebx, ebx |
||
99 | mov ah, byte [bus] |
||
100 | mov al, 9 |
||
101 | mov bh, byte [devfn] |
||
102 | mov bl, byte [reg] |
||
103 | mov ecx, [val] |
||
104 | call pci_write_reg |
||
105 | pop ebx |
||
106 | ret |
||
557 | serge | 107 | endp |
108 | |||
672 | hidnplayr | 109 | align 4 |
110 | proc pci_write32 stdcall, bus:dword, devfn:dword, reg:dword, val:dword |
||
2434 | Serge | 111 | push ebx |
112 | xor eax, eax |
||
113 | xor ebx, ebx |
||
114 | mov ah, byte [bus] |
||
115 | mov al, 10 |
||
116 | mov bh, byte [devfn] |
||
117 | mov bl, byte [reg] |
||
118 | mov ecx, [val] |
||
119 | call pci_write_reg |
||
120 | pop ebx |
||
121 | ret |
||
672 | hidnplayr | 122 | endp |
164 | serge | 123 | |
2434 | Serge | 124 | handle equ IOCTL.handle |
125 | io_code equ IOCTL.io_code |
||
126 | input equ IOCTL.input |
||
127 | inp_size equ IOCTL.inp_size |
||
128 | output equ IOCTL.output |
||
129 | out_size equ IOCTL.out_size |
||
164 | serge | 130 | |
672 | hidnplayr | 131 | |
164 | serge | 132 | align 4 |
133 | proc srv_handler stdcall, ioctl:dword |
||
2434 | Serge | 134 | mov esi, [ioctl] |
135 | test esi, esi |
||
136 | jz .err |
||
164 | serge | 137 | |
2434 | Serge | 138 | mov edi, [esi+handle] |
139 | cmp [edi+SRV.magic], ' SRV' |
||
140 | jne .fail |
||
164 | serge | 141 | |
2434 | Serge | 142 | cmp [edi+SRV.size], sizeof.SRV |
143 | jne .fail |
||
164 | serge | 144 | |
2434 | Serge | 145 | stdcall [edi+SRV.srv_proc], esi |
146 | ret |
||
164 | serge | 147 | .fail: |
2434 | Serge | 148 | xor eax, eax |
149 | not eax |
||
150 | mov [esi+output], eax |
||
151 | mov [esi+out_size], 4 |
||
152 | ret |
||
164 | serge | 153 | .err: |
2434 | Serge | 154 | xor eax, eax |
155 | not eax |
||
156 | ret |
||
164 | serge | 157 | endp |
158 | |||
377 | serge | 159 | ; param |
1345 | Lrz | 160 | ; ecx= io_control |
377 | serge | 161 | ; |
162 | ; retval |
||
163 | ; eax= error code |
||
164 | |||
164 | serge | 165 | align 4 |
377 | serge | 166 | srv_handlerEx: |
2434 | Serge | 167 | cmp ecx, OS_BASE |
168 | jae .fail |
||
164 | serge | 169 | |
2434 | Serge | 170 | mov eax, [ecx+handle] |
171 | cmp [eax+SRV.magic], ' SRV' |
||
172 | jne .fail |
||
164 | serge | 173 | |
2434 | Serge | 174 | cmp [eax+SRV.size], sizeof.SRV |
175 | jne .fail |
||
164 | serge | 176 | |
2434 | Serge | 177 | stdcall [eax+SRV.srv_proc], ecx |
178 | ret |
||
164 | serge | 179 | .fail: |
2434 | Serge | 180 | or eax, -1 |
181 | ret |
||
164 | serge | 182 | |
183 | restore handle |
||
184 | restore io_code |
||
185 | restore input |
||
186 | restore inp_size |
||
187 | restore output |
||
188 | restore out_size |
||
189 | |||
190 | align 4 |
||
191 | proc get_service stdcall, sz_name:dword |
||
2434 | Serge | 192 | mov eax, [sz_name] |
193 | test eax, eax |
||
194 | jnz @F |
||
195 | ret |
||
164 | serge | 196 | @@: |
2434 | Serge | 197 | mov edx, [srv.fd] |
188 | serge | 198 | @@: |
2434 | Serge | 199 | cmp edx, srv.fd-SRV.fd |
200 | je .not_load |
||
278 | serge | 201 | |
2434 | Serge | 202 | stdcall strncmp, edx, [sz_name], 16 |
203 | test eax, eax |
||
204 | je .ok |
||
164 | serge | 205 | |
2434 | Serge | 206 | mov edx, [edx+SRV.fd] |
207 | jmp @B |
||
164 | serge | 208 | .not_load: |
2434 | Serge | 209 | pop ebp |
210 | jmp load_driver |
||
164 | serge | 211 | .ok: |
2434 | Serge | 212 | mov eax, edx |
213 | ret |
||
164 | serge | 214 | endp |
215 | |||
216 | align 4 |
||
740 | serge | 217 | proc reg_service stdcall, name:dword, handler:dword |
164 | serge | 218 | |
2434 | Serge | 219 | push ebx |
164 | serge | 220 | |
2434 | Serge | 221 | xor eax, eax |
819 | serge | 222 | |
2434 | Serge | 223 | cmp [name], eax |
224 | je .fail |
||
740 | serge | 225 | |
2434 | Serge | 226 | cmp [handler], eax |
227 | je .fail |
||
740 | serge | 228 | |
2434 | Serge | 229 | mov eax, sizeof.SRV |
230 | call malloc |
||
231 | test eax, eax |
||
232 | jz .fail |
||
164 | serge | 233 | |
2434 | Serge | 234 | push esi |
235 | push edi |
||
236 | mov edi, eax |
||
237 | mov esi, [name] |
||
238 | movsd |
||
239 | movsd |
||
240 | movsd |
||
241 | movsd |
||
242 | pop edi |
||
243 | pop esi |
||
164 | serge | 244 | |
2434 | Serge | 245 | mov [eax+SRV.magic], ' SRV' |
246 | mov [eax+SRV.size], sizeof.SRV |
||
278 | serge | 247 | |
2434 | Serge | 248 | mov ebx, srv.fd-SRV.fd |
249 | mov edx, [ebx+SRV.fd] |
||
250 | mov [eax+SRV.fd], edx |
||
251 | mov [eax+SRV.bk], ebx |
||
252 | mov [ebx+SRV.fd], eax |
||
253 | mov [edx+SRV.bk], eax |
||
278 | serge | 254 | |
2434 | Serge | 255 | mov ecx, [handler] |
256 | mov [eax+SRV.srv_proc], ecx |
||
257 | pop ebx |
||
258 | ret |
||
164 | serge | 259 | .fail: |
2434 | Serge | 260 | xor eax, eax |
261 | pop ebx |
||
262 | ret |
||
740 | serge | 263 | endp |
164 | serge | 264 | |
265 | align 4 |
||
266 | proc get_proc stdcall, exp:dword, sz_name:dword |
||
267 | |||
2434 | Serge | 268 | mov edx, [exp] |
164 | serge | 269 | .next: |
2434 | Serge | 270 | mov eax, [edx] |
271 | test eax, eax |
||
272 | jz .end |
||
164 | serge | 273 | |
2434 | Serge | 274 | push edx |
275 | stdcall strncmp, eax, [sz_name], 16 |
||
276 | pop edx |
||
277 | test eax, eax |
||
278 | jz .ok |
||
164 | serge | 279 | |
2434 | Serge | 280 | add edx, 8 |
281 | jmp .next |
||
164 | serge | 282 | .ok: |
2434 | Serge | 283 | mov eax, [edx+4] |
164 | serge | 284 | .end: |
2434 | Serge | 285 | ret |
164 | serge | 286 | endp |
287 | |||
288 | align 4 |
||
289 | proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword |
||
290 | |||
291 | @@: |
||
2434 | Serge | 292 | stdcall strncmp, [pSym], [sz_sym], 8 |
293 | test eax, eax |
||
294 | jz .ok |
||
295 | add [pSym], 18 |
||
296 | dec [count] |
||
297 | jnz @b |
||
298 | xor eax, eax |
||
299 | ret |
||
164 | serge | 300 | .ok: |
2434 | Serge | 301 | mov eax, [pSym] |
302 | mov eax, [eax+8] |
||
303 | ret |
||
164 | serge | 304 | endp |
305 | |||
306 | align 4 |
||
188 | serge | 307 | proc get_curr_task |
2434 | Serge | 308 | mov eax, [CURRENT_TASK] |
309 | shl eax, 8 |
||
310 | ret |
||
188 | serge | 311 | endp |
164 | serge | 312 | |
188 | serge | 313 | align 4 |
314 | proc get_fileinfo stdcall, file_name:dword, info:dword |
||
2434 | Serge | 315 | locals |
316 | cmd dd ? |
||
317 | offset dd ? |
||
318 | dd ? |
||
319 | count dd ? |
||
320 | buff dd ? |
||
321 | db ? |
||
322 | name dd ? |
||
323 | endl |
||
164 | serge | 324 | |
2434 | Serge | 325 | xor eax, eax |
326 | mov ebx, [file_name] |
||
327 | mov ecx, [info] |
||
164 | serge | 328 | |
2434 | Serge | 329 | mov [cmd], 5 |
330 | mov [offset], eax |
||
331 | mov [offset+4], eax |
||
332 | mov [count], eax |
||
333 | mov [buff], ecx |
||
334 | mov byte [buff+4], al |
||
335 | mov [name], ebx |
||
164 | serge | 336 | |
2434 | Serge | 337 | mov eax, 70 |
338 | lea ebx, [cmd] |
||
339 | int 0x40 |
||
340 | ret |
||
188 | serge | 341 | endp |
164 | serge | 342 | |
188 | serge | 343 | align 4 |
344 | proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\ |
||
2434 | Serge | 345 | bytes:dword |
346 | locals |
||
347 | cmd dd ? |
||
348 | offset dd ? |
||
349 | dd ? |
||
350 | count dd ? |
||
351 | buff dd ? |
||
352 | db ? |
||
353 | name dd ? |
||
354 | endl |
||
164 | serge | 355 | |
2434 | Serge | 356 | xor eax, eax |
357 | mov ebx, [file_name] |
||
358 | mov ecx, [off] |
||
359 | mov edx, [bytes] |
||
360 | mov esi, [buffer] |
||
164 | serge | 361 | |
2434 | Serge | 362 | mov [cmd], eax |
363 | mov [offset], ecx |
||
364 | mov [offset+4], eax |
||
365 | mov [count], edx |
||
366 | mov [buff], esi |
||
367 | mov byte [buff+4], al |
||
368 | mov [name], ebx |
||
188 | serge | 369 | |
2434 | Serge | 370 | pushad |
371 | lea ebx, [cmd] |
||
3500 | Serge | 372 | call file_system_lfn_protected |
2434 | Serge | 373 | popad |
374 | ret |
||
188 | serge | 375 | endp |
376 | |||
363 | serge | 377 | ; description |
378 | ; allocate kernel memory and loads the specified file |
||
379 | ; |
||
380 | ; param |
||
381 | ; file_name= full path to file |
||
382 | ; |
||
383 | ; retval |
||
384 | ; eax= file image in kernel memory |
||
385 | ; ebx= size of file |
||
386 | ; |
||
387 | ; warging |
||
388 | ; You mast call kernel_free() to delete each file |
||
389 | ; loaded by the load_file() function |
||
390 | |||
188 | serge | 391 | align 4 |
392 | proc load_file stdcall, file_name:dword |
||
2434 | Serge | 393 | locals |
394 | attr dd ? |
||
395 | flags dd ? |
||
396 | cr_time dd ? |
||
397 | cr_date dd ? |
||
398 | acc_time dd ? |
||
399 | acc_date dd ? |
||
400 | mod_time dd ? |
||
401 | mod_date dd ? |
||
402 | file_size dd ? |
||
188 | serge | 403 | |
2434 | Serge | 404 | file dd ? |
405 | file2 dd ? |
||
406 | endl |
||
188 | serge | 407 | |
2434 | Serge | 408 | push esi |
409 | push edi |
||
662 | serge | 410 | |
2434 | Serge | 411 | lea eax, [attr] |
412 | stdcall get_fileinfo, [file_name], eax |
||
413 | test eax, eax |
||
414 | jnz .fail |
||
164 | serge | 415 | |
2434 | Serge | 416 | mov eax, [file_size] |
417 | cmp eax, 1024*1024*16 |
||
418 | ja .fail |
||
206 | serge | 419 | |
2434 | Serge | 420 | stdcall kernel_alloc, [file_size] |
421 | mov [file], eax |
||
422 | test eax, eax |
||
423 | jz .fail |
||
164 | serge | 424 | |
2434 | Serge | 425 | stdcall read_file, [file_name], eax, dword 0, [file_size] |
426 | cmp ebx, [file_size] |
||
427 | jne .cleanup |
||
211 | serge | 428 | |
2434 | Serge | 429 | mov eax, [file] |
430 | cmp dword [eax], 0x4B43504B |
||
431 | jne .exit |
||
432 | mov ebx, [eax+4] |
||
433 | mov [file_size], ebx |
||
434 | stdcall kernel_alloc, ebx |
||
211 | serge | 435 | |
2434 | Serge | 436 | test eax, eax |
437 | jz .cleanup |
||
211 | serge | 438 | |
2434 | Serge | 439 | mov [file2], eax |
2987 | Serge | 440 | |
441 | pushad |
||
442 | mov ecx, unpack_mutex |
||
443 | call mutex_lock |
||
444 | popad |
||
445 | |||
2434 | Serge | 446 | stdcall unpack, [file], eax |
2987 | Serge | 447 | |
448 | pushad |
||
449 | mov ecx, unpack_mutex |
||
450 | call mutex_unlock |
||
451 | popad |
||
452 | |||
2434 | Serge | 453 | stdcall kernel_free, [file] |
454 | mov eax, [file2] |
||
455 | mov ebx, [file_size] |
||
211 | serge | 456 | .exit: |
2434 | Serge | 457 | push eax |
458 | lea edi, [eax+ebx] ;cleanup remain space |
||
459 | mov ecx, 4096 ;from file end |
||
460 | and ebx, 4095 |
||
461 | jz @f |
||
462 | sub ecx, ebx |
||
463 | xor eax, eax |
||
464 | cld |
||
465 | rep stosb |
||
521 | diamond | 466 | @@: |
2434 | Serge | 467 | mov ebx, [file_size] |
468 | pop eax |
||
469 | pop edi |
||
470 | pop esi |
||
471 | ret |
||
188 | serge | 472 | .cleanup: |
2434 | Serge | 473 | stdcall kernel_free, [file] |
188 | serge | 474 | .fail: |
2434 | Serge | 475 | xor eax, eax |
476 | xor ebx, ebx |
||
477 | pop edi |
||
478 | pop esi |
||
479 | ret |
||
188 | serge | 480 | endp |
164 | serge | 481 | |
2987 | Serge | 482 | uglobal |
188 | serge | 483 | align 4 |
2987 | Serge | 484 | unpack_mutex MUTEX |
485 | endg |
||
486 | |||
487 | align 4 |
||
188 | serge | 488 | proc get_proc_ex stdcall, proc_name:dword, imports:dword |
489 | |||
490 | .look_up: |
||
2434 | Serge | 491 | mov edx, [imports] |
492 | test edx, edx |
||
493 | jz .end |
||
494 | mov edx, [edx] |
||
495 | test edx, edx |
||
496 | jz .end |
||
188 | serge | 497 | .next: |
2434 | Serge | 498 | mov eax, [edx] |
499 | test eax, eax |
||
500 | jz .next_table |
||
164 | serge | 501 | |
2434 | Serge | 502 | push edx |
503 | stdcall strncmp, eax, [proc_name], 256 |
||
504 | pop edx |
||
505 | test eax, eax |
||
506 | jz .ok |
||
164 | serge | 507 | |
2434 | Serge | 508 | add edx, 8 |
509 | jmp .next |
||
188 | serge | 510 | .next_table: |
2434 | Serge | 511 | add [imports], 4 |
512 | jmp .look_up |
||
188 | serge | 513 | .ok: |
2434 | Serge | 514 | mov eax, [edx+4] |
515 | ret |
||
188 | serge | 516 | .end: |
2434 | Serge | 517 | xor eax, eax |
518 | ret |
||
188 | serge | 519 | endp |
164 | serge | 520 | |
188 | serge | 521 | align 4 |
1289 | diamond | 522 | proc fix_coff_symbols stdcall uses ebx esi, sec:dword, symbols:dword,\ |
2434 | Serge | 523 | sym_count:dword, strings:dword, imports:dword |
524 | locals |
||
525 | retval dd ? |
||
526 | endl |
||
164 | serge | 527 | |
2434 | Serge | 528 | mov edi, [symbols] |
529 | mov [retval], 1 |
||
188 | serge | 530 | .fix: |
2434 | Serge | 531 | movzx ebx, [edi+COFF_SYM.SectionNumber] |
532 | test ebx, ebx |
||
533 | jnz .internal |
||
534 | mov eax, dword [edi+COFF_SYM.Name] |
||
535 | test eax, eax |
||
536 | jnz @F |
||
164 | serge | 537 | |
2434 | Serge | 538 | mov edi, [edi+4] |
539 | add edi, [strings] |
||
188 | serge | 540 | @@: |
2434 | Serge | 541 | push edi |
542 | stdcall get_proc_ex, edi, [imports] |
||
543 | pop edi |
||
164 | serge | 544 | |
2434 | Serge | 545 | xor ebx, ebx |
546 | test eax, eax |
||
547 | jnz @F |
||
164 | serge | 548 | |
2434 | Serge | 549 | mov esi, msg_unresolved |
550 | call sys_msg_board_str |
||
551 | mov esi, edi |
||
552 | call sys_msg_board_str |
||
553 | mov esi, msg_CR |
||
554 | call sys_msg_board_str |
||
164 | serge | 555 | |
2434 | Serge | 556 | mov [retval], 0 |
188 | serge | 557 | @@: |
2434 | Serge | 558 | mov edi, [symbols] |
559 | mov [edi+COFF_SYM.Value], eax |
||
560 | jmp .next |
||
188 | serge | 561 | .internal: |
2434 | Serge | 562 | cmp bx, -1 |
563 | je .next |
||
564 | cmp bx, -2 |
||
565 | je .next |
||
541 | serge | 566 | |
2434 | Serge | 567 | dec ebx |
568 | shl ebx, 3 |
||
569 | lea ebx, [ebx+ebx*4] |
||
570 | add ebx, [sec] |
||
188 | serge | 571 | |
2434 | Serge | 572 | mov eax, [ebx+COFF_SECTION.VirtualAddress] |
573 | add [edi+COFF_SYM.Value], eax |
||
188 | serge | 574 | .next: |
2434 | Serge | 575 | add edi, sizeof.COFF_SYM |
576 | mov [symbols], edi |
||
577 | dec [sym_count] |
||
578 | jnz .fix |
||
579 | mov eax, [retval] |
||
580 | ret |
||
164 | serge | 581 | endp |
582 | |||
583 | align 4 |
||
1289 | diamond | 584 | proc fix_coff_relocs stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 585 | delta:dword |
586 | locals |
||
587 | n_sec dd ? |
||
588 | endl |
||
164 | serge | 589 | |
2434 | Serge | 590 | mov eax, [coff] |
591 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
592 | mov [n_sec], ebx |
||
593 | lea esi, [eax+20] |
||
188 | serge | 594 | .fix_sec: |
2434 | Serge | 595 | mov edi, [esi+COFF_SECTION.PtrReloc] |
596 | add edi, [coff] |
||
164 | serge | 597 | |
2434 | Serge | 598 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
599 | test ecx, ecx |
||
600 | jz .next |
||
1289 | diamond | 601 | .reloc_loop: |
2434 | Serge | 602 | mov ebx, [edi+COFF_RELOC.SymIndex] |
603 | add ebx, ebx |
||
604 | lea ebx, [ebx+ebx*8] |
||
605 | add ebx, [sym] |
||
164 | serge | 606 | |
2434 | Serge | 607 | mov edx, [ebx+COFF_SYM.Value] |
164 | serge | 608 | |
2434 | Serge | 609 | cmp [edi+COFF_RELOC.Type], 6 |
610 | je .dir_32 |
||
164 | serge | 611 | |
2434 | Serge | 612 | cmp [edi+COFF_RELOC.Type], 20 |
613 | jne .next_reloc |
||
188 | serge | 614 | .rel_32: |
2434 | Serge | 615 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
616 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
617 | sub edx, eax |
||
618 | sub edx, 4 |
||
619 | jmp .fix |
||
188 | serge | 620 | .dir_32: |
2434 | Serge | 621 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
622 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
188 | serge | 623 | .fix: |
2434 | Serge | 624 | add eax, [delta] |
625 | add [eax], edx |
||
1289 | diamond | 626 | .next_reloc: |
2434 | Serge | 627 | add edi, 10 |
628 | dec ecx |
||
629 | jnz .reloc_loop |
||
188 | serge | 630 | .next: |
2434 | Serge | 631 | add esi, sizeof.COFF_SECTION |
632 | dec [n_sec] |
||
633 | jnz .fix_sec |
||
164 | serge | 634 | .exit: |
2434 | Serge | 635 | ret |
164 | serge | 636 | endp |
637 | |||
2106 | serge | 638 | align 4 |
1289 | diamond | 639 | proc rebase_coff stdcall uses ebx esi, coff:dword, sym:dword, \ |
2434 | Serge | 640 | delta:dword |
641 | locals |
||
642 | n_sec dd ? |
||
643 | endl |
||
1289 | diamond | 644 | |
2434 | Serge | 645 | mov eax, [coff] |
646 | movzx ebx, [eax+COFF_HEADER.nSections] |
||
647 | mov [n_sec], ebx |
||
648 | lea esi, [eax+20] |
||
649 | mov edx, [delta] |
||
1289 | diamond | 650 | .fix_sec: |
2434 | Serge | 651 | mov edi, [esi+COFF_SECTION.PtrReloc] |
652 | add edi, [coff] |
||
1289 | diamond | 653 | |
2434 | Serge | 654 | movzx ecx, [esi+COFF_SECTION.NumReloc] |
655 | test ecx, ecx |
||
656 | jz .next |
||
1289 | diamond | 657 | .reloc_loop: |
2434 | Serge | 658 | cmp [edi+COFF_RELOC.Type], 6 |
659 | jne .next_reloc |
||
1289 | diamond | 660 | .dir_32: |
2434 | Serge | 661 | mov eax, [edi+COFF_RELOC.VirtualAddress] |
662 | add eax, [esi+COFF_SECTION.VirtualAddress] |
||
663 | add [eax+edx], edx |
||
1289 | diamond | 664 | .next_reloc: |
2434 | Serge | 665 | add edi, 10 |
666 | dec ecx |
||
667 | jnz .reloc_loop |
||
1289 | diamond | 668 | .next: |
2434 | Serge | 669 | add esi, sizeof.COFF_SECTION |
670 | dec [n_sec] |
||
671 | jnz .fix_sec |
||
1289 | diamond | 672 | .exit: |
2434 | Serge | 673 | ret |
1289 | diamond | 674 | endp |
675 | |||
188 | serge | 676 | align 4 |
346 | diamond | 677 | proc load_driver stdcall, driver_name:dword |
2434 | Serge | 678 | locals |
679 | coff dd ? |
||
680 | sym dd ? |
||
681 | strings dd ? |
||
682 | img_size dd ? |
||
683 | img_base dd ? |
||
684 | start dd ? |
||
188 | serge | 685 | |
2434 | Serge | 686 | exports dd ? ;fake exports table |
687 | dd ? |
||
688 | file_name rb 13+16+4+1 ; '/sys/drivers/ |
||
689 | endl |
||
188 | serge | 690 | |
2434 | Serge | 691 | lea edx, [file_name] |
692 | mov dword [edx], '/sys' |
||
693 | mov dword [edx+4], '/dri' |
||
694 | mov dword [edx+8], 'vers' |
||
695 | mov byte [edx+12], '/' |
||
696 | mov esi, [driver_name] |
||
1018 | diamond | 697 | .redo: |
2434 | Serge | 698 | lea edx, [file_name] |
699 | lea edi, [edx+13] |
||
700 | mov ecx, 16 |
||
346 | diamond | 701 | @@: |
2434 | Serge | 702 | lodsb |
703 | test al, al |
||
704 | jz @f |
||
705 | stosb |
||
706 | loop @b |
||
346 | diamond | 707 | @@: |
2434 | Serge | 708 | mov dword [edi], '.obj' |
709 | mov byte [edi+4], 0 |
||
710 | stdcall load_file, edx |
||
214 | serge | 711 | |
2434 | Serge | 712 | test eax, eax |
713 | jz .exit |
||
188 | serge | 714 | |
2434 | Serge | 715 | mov [coff], eax |
188 | serge | 716 | |
2434 | Serge | 717 | movzx ecx, [eax+COFF_HEADER.nSections] |
718 | xor ebx, ebx |
||
188 | serge | 719 | |
2434 | Serge | 720 | lea edx, [eax+20] |
188 | serge | 721 | @@: |
2434 | Serge | 722 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
723 | add ebx, 15 |
||
724 | and ebx, not 15 |
||
725 | add edx, sizeof.COFF_SECTION |
||
726 | dec ecx |
||
727 | jnz @B |
||
728 | mov [img_size], ebx |
||
188 | serge | 729 | |
2434 | Serge | 730 | stdcall kernel_alloc, ebx |
731 | test eax, eax |
||
732 | jz .fail |
||
733 | mov [img_base], eax |
||
188 | serge | 734 | |
2434 | Serge | 735 | mov edi, eax |
736 | xor eax, eax |
||
737 | mov ecx, [img_size] |
||
738 | add ecx, 4095 |
||
739 | and ecx, not 4095 |
||
740 | shr ecx, 2 |
||
741 | cld |
||
742 | rep stosd |
||
188 | serge | 743 | |
2434 | Serge | 744 | mov edx, [coff] |
745 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
746 | mov edi, [img_base] |
||
747 | lea eax, [edx+20] |
||
188 | serge | 748 | @@: |
2434 | Serge | 749 | mov [eax+COFF_SECTION.VirtualAddress], edi |
750 | mov esi, [eax+COFF_SECTION.PtrRawData] |
||
751 | test esi, esi |
||
752 | jnz .copy |
||
753 | add edi, [eax+COFF_SECTION.SizeOfRawData] |
||
754 | jmp .next |
||
188 | serge | 755 | .copy: |
2434 | Serge | 756 | add esi, edx |
757 | mov ecx, [eax+COFF_SECTION.SizeOfRawData] |
||
758 | cld |
||
759 | rep movsb |
||
188 | serge | 760 | .next: |
2434 | Serge | 761 | add edi, 15 |
762 | and edi, not 15 |
||
763 | add eax, sizeof.COFF_SECTION |
||
764 | dec ebx |
||
765 | jnz @B |
||
188 | serge | 766 | |
2434 | Serge | 767 | mov ebx, [edx+COFF_HEADER.pSymTable] |
768 | add ebx, edx |
||
769 | mov [sym], ebx |
||
770 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
771 | add ecx, ecx |
||
772 | lea ecx, [ecx+ecx*8];ecx*=18 = nSymbols*CSYM_SIZE |
||
773 | add ecx, [sym] |
||
774 | mov [strings], ecx |
||
188 | serge | 775 | |
2434 | Serge | 776 | lea ebx, [exports] |
777 | mov dword [ebx], kernel_export |
||
778 | mov dword [ebx+4], 0 |
||
779 | lea eax, [edx+20] |
||
188 | serge | 780 | |
2434 | Serge | 781 | stdcall fix_coff_symbols, eax, [sym], [edx+COFF_HEADER.nSymbols], \ |
782 | [strings], ebx |
||
783 | test eax, eax |
||
784 | jz .link_fail |
||
188 | serge | 785 | |
2434 | Serge | 786 | mov ebx, [coff] |
787 | stdcall fix_coff_relocs, ebx, [sym], 0 |
||
188 | serge | 788 | |
2434 | Serge | 789 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szVersion |
790 | test eax, eax |
||
791 | jz .link_fail |
||
227 | serge | 792 | |
2434 | Serge | 793 | mov eax, [eax] |
794 | shr eax, 16 |
||
795 | cmp eax, DRV_COMPAT |
||
796 | jb .ver_fail |
||
227 | serge | 797 | |
2434 | Serge | 798 | cmp eax, DRV_CURRENT |
799 | ja .ver_fail |
||
227 | serge | 800 | |
2434 | Serge | 801 | mov ebx, [coff] |
802 | stdcall get_coff_sym, [sym], [ebx+COFF_HEADER.nSymbols], szSTART |
||
803 | mov [start], eax |
||
188 | serge | 804 | |
2434 | Serge | 805 | stdcall kernel_free, [coff] |
188 | serge | 806 | |
2434 | Serge | 807 | mov ebx, [start] |
808 | stdcall ebx, DRV_ENTRY |
||
809 | test eax, eax |
||
810 | jnz .ok |
||
188 | serge | 811 | |
2434 | Serge | 812 | stdcall kernel_free, [img_base] |
3232 | Serge | 813 | |
2434 | Serge | 814 | xor eax, eax |
815 | ret |
||
188 | serge | 816 | .ok: |
2434 | Serge | 817 | mov ebx, [img_base] |
818 | mov [eax+SRV.base], ebx |
||
819 | mov ecx, [start] |
||
820 | mov [eax+SRV.entry], ecx |
||
821 | ret |
||
227 | serge | 822 | |
823 | .ver_fail: |
||
2434 | Serge | 824 | mov esi, msg_CR |
825 | call sys_msg_board_str |
||
826 | mov esi, [driver_name] |
||
827 | call sys_msg_board_str |
||
828 | mov esi, msg_CR |
||
829 | call sys_msg_board_str |
||
830 | mov esi, msg_version |
||
831 | call sys_msg_board_str |
||
832 | mov esi, msg_www |
||
833 | call sys_msg_board_str |
||
834 | jmp .cleanup |
||
227 | serge | 835 | |
836 | .link_fail: |
||
2434 | Serge | 837 | mov esi, msg_module |
838 | call sys_msg_board_str |
||
839 | mov esi, [driver_name] |
||
840 | call sys_msg_board_str |
||
841 | mov esi, msg_CR |
||
842 | call sys_msg_board_str |
||
227 | serge | 843 | .cleanup: |
2434 | Serge | 844 | stdcall kernel_free, [img_base] |
188 | serge | 845 | .fail: |
2434 | Serge | 846 | stdcall kernel_free, [coff] |
227 | serge | 847 | .exit: |
2434 | Serge | 848 | xor eax, eax |
849 | ret |
||
164 | serge | 850 | endp |
851 | |||
1296 | diamond | 852 | ; in: edx -> COFF_SECTION struct |
853 | ; out: eax = alignment as mask for bits to drop |
||
854 | coff_get_align: |
||
855 | ; Rules: |
||
856 | ; - if alignment is not given, use default = 4K; |
||
857 | ; - if alignment is given and is no more than 4K, use it; |
||
858 | ; - if alignment is more than 4K, revert to 4K. |
||
2434 | Serge | 859 | push ecx |
860 | mov cl, byte [edx+COFF_SECTION.Characteristics+2] |
||
861 | mov eax, 1 |
||
862 | shr cl, 4 |
||
863 | dec cl |
||
864 | js .default |
||
865 | cmp cl, 12 |
||
866 | jbe @f |
||
1296 | diamond | 867 | .default: |
2434 | Serge | 868 | mov cl, 12 |
1296 | diamond | 869 | @@: |
2434 | Serge | 870 | shl eax, cl |
871 | pop ecx |
||
872 | dec eax |
||
873 | ret |
||
1296 | diamond | 874 | |
198 | serge | 875 | align 4 |
876 | proc load_library stdcall, file_name:dword |
||
2434 | Serge | 877 | locals |
878 | fullname rb 260 |
||
879 | fileinfo rb 40 |
||
880 | coff dd ? |
||
881 | img_base dd ? |
||
882 | endl |
||
198 | serge | 883 | |
2434 | Serge | 884 | cli |
198 | serge | 885 | |
1289 | diamond | 886 | ; resolve file name |
2434 | Serge | 887 | mov ebx, [file_name] |
888 | lea edi, [fullname+1] |
||
889 | mov byte [edi-1], '/' |
||
890 | stdcall get_full_file_name, edi, 259 |
||
891 | test al, al |
||
892 | jz .fail |
||
1289 | diamond | 893 | |
894 | ; scan for required DLL in list of already loaded for this process, |
||
895 | ; ignore timestamp |
||
2434 | Serge | 896 | mov esi, [CURRENT_TASK] |
897 | shl esi, 8 |
||
898 | lea edi, [fullname] |
||
899 | mov ebx, [esi+SLOT_BASE+APPDATA.dlls_list_ptr] |
||
900 | test ebx, ebx |
||
901 | jz .not_in_process |
||
902 | mov esi, [ebx+HDLL.fd] |
||
1289 | diamond | 903 | .scan_in_process: |
2434 | Serge | 904 | cmp esi, ebx |
905 | jz .not_in_process |
||
906 | mov eax, [esi+HDLL.parent] |
||
907 | add eax, DLLDESCR.name |
||
908 | stdcall strncmp, eax, edi, -1 |
||
909 | test eax, eax |
||
910 | jnz .next_in_process |
||
1289 | diamond | 911 | ; simple variant: load DLL which is already loaded in this process |
912 | ; just increment reference counters and return address of exports table |
||
2434 | Serge | 913 | inc [esi+HDLL.refcount] |
914 | mov ecx, [esi+HDLL.parent] |
||
915 | inc [ecx+DLLDESCR.refcount] |
||
916 | mov eax, [ecx+DLLDESCR.exports] |
||
917 | sub eax, [ecx+DLLDESCR.defaultbase] |
||
918 | add eax, [esi+HDLL.base] |
||
919 | ret |
||
1289 | diamond | 920 | .next_in_process: |
2434 | Serge | 921 | mov esi, [esi+HDLL.fd] |
922 | jmp .scan_in_process |
||
1289 | diamond | 923 | .not_in_process: |
924 | |||
925 | ; scan in full list, compare timestamp |
||
2434 | Serge | 926 | lea eax, [fileinfo] |
927 | stdcall get_fileinfo, edi, eax |
||
928 | test eax, eax |
||
929 | jnz .fail |
||
930 | mov esi, [dll_list.fd] |
||
1289 | diamond | 931 | .scan_for_dlls: |
2434 | Serge | 932 | cmp esi, dll_list |
933 | jz .load_new |
||
934 | lea eax, [esi+DLLDESCR.name] |
||
935 | stdcall strncmp, eax, edi, -1 |
||
936 | test eax, eax |
||
937 | jnz .continue_scan |
||
1289 | diamond | 938 | .test_prev_dll: |
2434 | Serge | 939 | mov eax, dword [fileinfo+24]; last modified time |
940 | mov edx, dword [fileinfo+28]; last modified date |
||
941 | cmp dword [esi+DLLDESCR.timestamp], eax |
||
942 | jnz .continue_scan |
||
943 | cmp dword [esi+DLLDESCR.timestamp+4], edx |
||
944 | jz .dll_already_loaded |
||
1289 | diamond | 945 | .continue_scan: |
2434 | Serge | 946 | mov esi, [esi+DLLDESCR.fd] |
947 | jmp .scan_for_dlls |
||
1289 | diamond | 948 | |
949 | ; new DLL |
||
950 | .load_new: |
||
951 | ; load file |
||
2434 | Serge | 952 | stdcall load_file, edi |
953 | test eax, eax |
||
954 | jz .fail |
||
955 | mov [coff], eax |
||
956 | mov dword [fileinfo+32], ebx |
||
198 | serge | 957 | |
1289 | diamond | 958 | ; allocate DLLDESCR struct; size is DLLDESCR.sizeof plus size of DLL name |
2434 | Serge | 959 | mov esi, edi |
960 | mov ecx, -1 |
||
961 | xor eax, eax |
||
962 | repnz scasb |
||
963 | not ecx |
||
964 | lea eax, [ecx+sizeof.DLLDESCR] |
||
965 | push ecx |
||
966 | call malloc |
||
967 | pop ecx |
||
968 | test eax, eax |
||
969 | jz .fail_and_free_coff |
||
1289 | diamond | 970 | ; save timestamp |
2434 | Serge | 971 | lea edi, [eax+DLLDESCR.name] |
972 | rep movsb |
||
973 | mov esi, eax |
||
974 | mov eax, dword [fileinfo+24] |
||
975 | mov dword [esi+DLLDESCR.timestamp], eax |
||
976 | mov eax, dword [fileinfo+28] |
||
977 | mov dword [esi+DLLDESCR.timestamp+4], eax |
||
1289 | diamond | 978 | ; initialize DLLDESCR struct |
2434 | Serge | 979 | and dword [esi+DLLDESCR.refcount], 0; no HDLLs yet; later it will be incremented |
980 | mov [esi+DLLDESCR.fd], dll_list |
||
981 | mov eax, [dll_list.bk] |
||
982 | mov [dll_list.bk], esi |
||
983 | mov [esi+DLLDESCR.bk], eax |
||
984 | mov [eax+DLLDESCR.fd], esi |
||
1289 | diamond | 985 | |
986 | ; calculate size of loaded DLL |
||
2434 | Serge | 987 | mov edx, [coff] |
988 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
989 | xor ebx, ebx |
||
198 | serge | 990 | |
2434 | Serge | 991 | add edx, 20 |
198 | serge | 992 | @@: |
2434 | Serge | 993 | call coff_get_align |
994 | add ebx, eax |
||
995 | not eax |
||
996 | and ebx, eax |
||
997 | add ebx, [edx+COFF_SECTION.SizeOfRawData] |
||
998 | add edx, sizeof.COFF_SECTION |
||
999 | dec ecx |
||
1000 | jnz @B |
||
1289 | diamond | 1001 | ; it must be nonzero and not too big |
2434 | Serge | 1002 | mov [esi+DLLDESCR.size], ebx |
1003 | test ebx, ebx |
||
1004 | jz .fail_and_free_dll |
||
1005 | cmp ebx, MAX_DEFAULT_DLL_ADDR-MIN_DEFAULT_DLL_ADDR |
||
1006 | ja .fail_and_free_dll |
||
1289 | diamond | 1007 | ; allocate memory for kernel-side image |
2434 | Serge | 1008 | stdcall kernel_alloc, ebx |
1009 | test eax, eax |
||
1010 | jz .fail_and_free_dll |
||
1011 | mov [esi+DLLDESCR.data], eax |
||
1289 | diamond | 1012 | ; calculate preferred base address |
2434 | Serge | 1013 | add ebx, 0x1FFF |
1014 | and ebx, not 0xFFF |
||
1015 | mov ecx, [dll_cur_addr] |
||
1016 | lea edx, [ecx+ebx] |
||
1017 | cmp edx, MAX_DEFAULT_DLL_ADDR |
||
1018 | jb @f |
||
1019 | mov ecx, MIN_DEFAULT_DLL_ADDR |
||
1020 | lea edx, [ecx+ebx] |
||
1289 | diamond | 1021 | @@: |
2434 | Serge | 1022 | mov [esi+DLLDESCR.defaultbase], ecx |
1023 | mov [dll_cur_addr], edx |
||
198 | serge | 1024 | |
1289 | diamond | 1025 | ; copy sections and set correct values for VirtualAddress'es in headers |
2434 | Serge | 1026 | push esi |
1027 | mov edx, [coff] |
||
1028 | movzx ebx, [edx+COFF_HEADER.nSections] |
||
1029 | mov edi, eax |
||
1030 | add edx, 20 |
||
1031 | cld |
||
198 | serge | 1032 | @@: |
2434 | Serge | 1033 | call coff_get_align |
1034 | add ecx, eax |
||
1035 | add edi, eax |
||
1036 | not eax |
||
1037 | and ecx, eax |
||
1038 | and edi, eax |
||
1039 | mov [edx+COFF_SECTION.VirtualAddress], ecx |
||
1040 | add ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1041 | mov esi, [edx+COFF_SECTION.PtrRawData] |
||
1042 | push ecx |
||
1043 | mov ecx, [edx+COFF_SECTION.SizeOfRawData] |
||
1044 | test esi, esi |
||
1045 | jnz .copy |
||
1046 | xor eax, eax |
||
1047 | rep stosb |
||
1048 | jmp .next |
||
198 | serge | 1049 | .copy: |
2434 | Serge | 1050 | add esi, [coff] |
1051 | rep movsb |
||
198 | serge | 1052 | .next: |
2434 | Serge | 1053 | pop ecx |
1054 | add edx, sizeof.COFF_SECTION |
||
1055 | dec ebx |
||
1056 | jnz @B |
||
1057 | pop esi |
||
198 | serge | 1058 | |
1289 | diamond | 1059 | ; save some additional data from COFF file |
1060 | ; later we will use COFF header, headers for sections and symbol table |
||
1061 | ; and also relocations table for all sections |
||
2434 | Serge | 1062 | mov edx, [coff] |
1063 | mov ebx, [edx+COFF_HEADER.pSymTable] |
||
1064 | mov edi, dword [fileinfo+32] |
||
1065 | sub edi, ebx |
||
1066 | jc .fail_and_free_data |
||
1067 | mov [esi+DLLDESCR.symbols_lim], edi |
||
1068 | add ebx, edx |
||
1069 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1070 | lea ecx, [ecx*5] |
||
1071 | lea edi, [edi+ecx*8+20] |
||
1072 | add edx, 20 |
||
1289 | diamond | 1073 | @@: |
2434 | Serge | 1074 | movzx eax, [edx+COFF_SECTION.NumReloc] |
1075 | lea eax, [eax*5] |
||
1076 | lea edi, [edi+eax*2] |
||
1077 | add edx, sizeof.COFF_SECTION |
||
1078 | sub ecx, 5 |
||
1079 | jnz @b |
||
1080 | stdcall kernel_alloc, edi |
||
1081 | test eax, eax |
||
1082 | jz .fail_and_free_data |
||
1083 | mov edx, [coff] |
||
1084 | movzx ecx, [edx+COFF_HEADER.nSections] |
||
1085 | lea ecx, [ecx*5] |
||
1086 | lea ecx, [ecx*2+5] |
||
1087 | mov [esi+DLLDESCR.coff_hdr], eax |
||
1088 | push esi |
||
1089 | mov esi, edx |
||
1090 | mov edi, eax |
||
1091 | rep movsd |
||
1092 | pop esi |
||
1093 | mov [esi+DLLDESCR.symbols_ptr], edi |
||
1094 | push esi |
||
1095 | mov ecx, [edx+COFF_HEADER.nSymbols] |
||
1096 | mov [esi+DLLDESCR.symbols_num], ecx |
||
1097 | mov ecx, [esi+DLLDESCR.symbols_lim] |
||
1098 | mov esi, ebx |
||
1099 | rep movsb |
||
1100 | pop esi |
||
1101 | mov ebx, [esi+DLLDESCR.coff_hdr] |
||
1102 | push esi |
||
1103 | movzx eax, [edx+COFF_HEADER.nSections] |
||
1104 | lea edx, [ebx+20] |
||
1289 | diamond | 1105 | @@: |
2434 | Serge | 1106 | movzx ecx, [edx+COFF_SECTION.NumReloc] |
1107 | lea ecx, [ecx*5] |
||
1108 | mov esi, [edx+COFF_SECTION.PtrReloc] |
||
1109 | mov [edx+COFF_SECTION.PtrReloc], edi |
||
1110 | sub [edx+COFF_SECTION.PtrReloc], ebx |
||
1111 | add esi, [coff] |
||
1112 | shr ecx, 1 |
||
1113 | rep movsd |
||
1114 | adc ecx, ecx |
||
1115 | rep movsw |
||
1116 | add edx, sizeof.COFF_SECTION |
||
1117 | dec eax |
||
1118 | jnz @b |
||
1119 | pop esi |
||
198 | serge | 1120 | |
1289 | diamond | 1121 | ; fixup symbols |
2434 | Serge | 1122 | mov edx, ebx |
1123 | mov eax, [ebx+COFF_HEADER.nSymbols] |
||
1124 | add edx, 20 |
||
1125 | mov ecx, [esi+DLLDESCR.symbols_num] |
||
1126 | lea ecx, [ecx*9] |
||
1127 | add ecx, ecx |
||
1128 | add ecx, [esi+DLLDESCR.symbols_ptr] |
||
198 | serge | 1129 | |
2434 | Serge | 1130 | stdcall fix_coff_symbols, edx, [esi+DLLDESCR.symbols_ptr], eax, \ |
1131 | ecx, 0 |
||
1132 | ; test eax, eax |
||
1133 | ; jnz @F |
||
1289 | diamond | 1134 | ; |
1135 | ;@@: |
||
1136 | |||
2434 | Serge | 1137 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], szEXPORTS |
1138 | test eax, eax |
||
1139 | jnz @F |
||
198 | serge | 1140 | |
2434 | Serge | 1141 | stdcall get_coff_sym, [esi+DLLDESCR.symbols_ptr], [ebx+COFF_HEADER.nSymbols], sz_EXPORTS |
198 | serge | 1142 | @@: |
2434 | Serge | 1143 | mov [esi+DLLDESCR.exports], eax |
198 | serge | 1144 | |
1289 | diamond | 1145 | ; fix relocs in the hidden copy in kernel memory to default address |
1146 | ; it is first fix; usually this will be enough, but second fix |
||
1147 | ; can be necessary if real load address will not equal assumption |
||
2434 | Serge | 1148 | mov eax, [esi+DLLDESCR.data] |
1149 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1150 | stdcall fix_coff_relocs, ebx, [esi+DLLDESCR.symbols_ptr], eax |
||
198 | serge | 1151 | |
2434 | Serge | 1152 | stdcall kernel_free, [coff] |
916 | serge | 1153 | |
1289 | diamond | 1154 | .dll_already_loaded: |
2434 | Serge | 1155 | inc [esi+DLLDESCR.refcount] |
1156 | push esi |
||
1157 | call init_heap |
||
1158 | pop esi |
||
1289 | diamond | 1159 | |
2434 | Serge | 1160 | mov edi, [esi+DLLDESCR.size] |
1161 | stdcall user_alloc_at, [esi+DLLDESCR.defaultbase], edi |
||
1162 | test eax, eax |
||
1163 | jnz @f |
||
1164 | stdcall user_alloc, edi |
||
1165 | test eax, eax |
||
1166 | jz .fail_and_dereference |
||
917 | diamond | 1167 | @@: |
2434 | Serge | 1168 | mov [img_base], eax |
1169 | mov eax, sizeof.HDLL |
||
1170 | call malloc |
||
1171 | test eax, eax |
||
1172 | jz .fail_and_free_user |
||
1173 | mov ebx, [CURRENT_TASK] |
||
1174 | shl ebx, 5 |
||
1175 | mov edx, [CURRENT_TASK+ebx+TASKDATA.pid] |
||
1176 | mov [eax+HDLL.pid], edx |
||
1177 | push eax |
||
1178 | call init_dlls_in_thread |
||
1179 | pop ebx |
||
1180 | test eax, eax |
||
1181 | jz .fail_and_free_user |
||
1182 | mov edx, [eax+HDLL.fd] |
||
1183 | mov [ebx+HDLL.fd], edx |
||
1184 | mov [ebx+HDLL.bk], eax |
||
1185 | mov [eax+HDLL.fd], ebx |
||
1186 | mov [edx+HDLL.bk], ebx |
||
1187 | mov eax, ebx |
||
1188 | mov ebx, [img_base] |
||
1189 | mov [eax+HDLL.base], ebx |
||
1190 | mov [eax+HDLL.size], edi |
||
1191 | mov [eax+HDLL.refcount], 1 |
||
1192 | mov [eax+HDLL.parent], esi |
||
1193 | mov edx, ebx |
||
1194 | shr edx, 12 |
||
1195 | or dword [page_tabs+(edx-1)*4], DONT_FREE_BLOCK |
||
1289 | diamond | 1196 | ; copy entries of page table from kernel-side image to usermode |
1197 | ; use copy-on-write for user-mode image, so map as readonly |
||
2434 | Serge | 1198 | xor edi, edi |
1199 | mov ecx, [esi+DLLDESCR.data] |
||
1200 | shr ecx, 12 |
||
1289 | diamond | 1201 | .map_pages_loop: |
2434 | Serge | 1202 | mov eax, [page_tabs+ecx*4] |
1203 | and eax, not 0xFFF |
||
1204 | or al, PG_USER |
||
1205 | xchg eax, [page_tabs+edx*4] |
||
1206 | test al, 1 |
||
1207 | jz @f |
||
1208 | call free_page |
||
1289 | diamond | 1209 | @@: |
2434 | Serge | 1210 | invlpg [ebx+edi] |
1211 | inc ecx |
||
1212 | inc edx |
||
1213 | add edi, 0x1000 |
||
1214 | cmp edi, [esi+DLLDESCR.size] |
||
1215 | jb .map_pages_loop |
||
1289 | diamond | 1216 | |
1217 | ; if real user-mode base is not equal to preferred base, relocate image |
||
2434 | Serge | 1218 | sub ebx, [esi+DLLDESCR.defaultbase] |
1219 | jz @f |
||
1220 | stdcall rebase_coff, [esi+DLLDESCR.coff_hdr], [esi+DLLDESCR.symbols_ptr], ebx |
||
1289 | diamond | 1221 | @@: |
1222 | |||
2434 | Serge | 1223 | mov eax, [esi+DLLDESCR.exports] |
1224 | sub eax, [esi+DLLDESCR.defaultbase] |
||
1225 | add eax, [img_base] |
||
1226 | ret |
||
1289 | diamond | 1227 | .fail_and_free_data: |
2434 | Serge | 1228 | stdcall kernel_free, [esi+DLLDESCR.data] |
1289 | diamond | 1229 | .fail_and_free_dll: |
2434 | Serge | 1230 | mov eax, esi |
1231 | call free |
||
1289 | diamond | 1232 | .fail_and_free_coff: |
2434 | Serge | 1233 | stdcall kernel_free, [coff] |
198 | serge | 1234 | .fail: |
2434 | Serge | 1235 | xor eax, eax |
1236 | ret |
||
1289 | diamond | 1237 | .fail_and_free_user: |
2434 | Serge | 1238 | stdcall user_free, [img_base] |
1289 | diamond | 1239 | .fail_and_dereference: |
2434 | Serge | 1240 | mov eax, 1 ; delete 1 reference |
1241 | call dereference_dll |
||
1242 | xor eax, eax |
||
1243 | ret |
||
198 | serge | 1244 | endp |
1245 | |||
1311 | diamond | 1246 | ; initialize [APPDATA.dlls_list_ptr] for given thread |
1247 | ; DLL is per-process object, so APPDATA.dlls_list_ptr must be |
||
1248 | ; kept in sync for all threads of one process. |
||
1249 | ; out: eax = APPDATA.dlls_list_ptr if all is OK, |
||
1250 | ; NULL if memory allocation failed |
||
1251 | init_dlls_in_thread: |
||
2434 | Serge | 1252 | mov ebx, [current_slot] |
1253 | mov eax, [ebx+APPDATA.dlls_list_ptr] |
||
1254 | test eax, eax |
||
1255 | jnz .ret |
||
1256 | push [ebx+APPDATA.dir_table] |
||
1257 | mov eax, 8 |
||
1258 | call malloc |
||
1259 | pop edx |
||
1260 | test eax, eax |
||
1261 | jz .ret |
||
1262 | mov [eax], eax |
||
1263 | mov [eax+4], eax |
||
1264 | mov ecx, [TASK_COUNT] |
||
1265 | mov ebx, SLOT_BASE+256 |
||
1311 | diamond | 1266 | .set: |
2434 | Serge | 1267 | cmp [ebx+APPDATA.dir_table], edx |
1268 | jnz @f |
||
1269 | mov [ebx+APPDATA.dlls_list_ptr], eax |
||
1311 | diamond | 1270 | @@: |
2434 | Serge | 1271 | add ebx, 256 |
1272 | dec ecx |
||
1273 | jnz .set |
||
1311 | diamond | 1274 | .ret: |
2434 | Serge | 1275 | ret |
1311 | diamond | 1276 | |
1289 | diamond | 1277 | ; in: eax = number of references to delete, esi -> DLLDESCR struc |
1278 | dereference_dll: |
||
2434 | Serge | 1279 | sub [esi+DLLDESCR.refcount], eax |
1280 | jnz .ret |
||
1281 | mov eax, [esi+DLLDESCR.fd] |
||
1282 | mov edx, [esi+DLLDESCR.bk] |
||
1283 | mov [eax+DLLDESCR.bk], edx |
||
1284 | mov [edx+DLLDESCR.fd], eax |
||
1285 | stdcall kernel_free, [esi+DLLDESCR.coff_hdr] |
||
1286 | stdcall kernel_free, [esi+DLLDESCR.data] |
||
1287 | mov eax, esi |
||
1288 | call free |
||
1289 | diamond | 1289 | .ret: |
2434 | Serge | 1290 | ret |
1289 | diamond | 1291 | |
1292 | destroy_hdll: |
||
2434 | Serge | 1293 | push ebx ecx esi edi |
1294 | push eax |
||
1295 | mov ebx, [eax+HDLL.base] |
||
1296 | mov esi, [eax+HDLL.parent] |
||
1297 | mov edx, [esi+DLLDESCR.size] |
||
1292 | diamond | 1298 | ; The following actions require the context of application where HDLL is mapped. |
1299 | ; However, destroy_hdll can be called in the context of OS thread when |
||
1300 | ; cleaning up objects created by the application which is destroyed. |
||
1301 | ; So remember current cr3 and set it to page table of target. |
||
2434 | Serge | 1302 | mov eax, [ecx+APPDATA.dir_table] |
1292 | diamond | 1303 | ; Because we cheat with cr3, disable interrupts: task switch would restore |
1304 | ; page table from APPDATA of current thread. |
||
1305 | ; Also set [current_slot] because it is used by user_free. |
||
2434 | Serge | 1306 | pushf |
1307 | cli |
||
1308 | push [current_slot] |
||
1309 | mov [current_slot], ecx |
||
1310 | mov ecx, cr3 |
||
1311 | push ecx |
||
1312 | mov cr3, eax |
||
1313 | push ebx ; argument for user_free |
||
1314 | mov eax, ebx |
||
1315 | shr ebx, 12 |
||
1316 | push ebx |
||
1317 | mov esi, [esi+DLLDESCR.data] |
||
1318 | shr esi, 12 |
||
1289 | diamond | 1319 | .unmap_loop: |
2434 | Serge | 1320 | push eax |
1321 | mov eax, 2 |
||
1322 | xchg eax, [page_tabs+ebx*4] |
||
1323 | mov ecx, [page_tabs+esi*4] |
||
1324 | and eax, not 0xFFF |
||
1325 | and ecx, not 0xFFF |
||
1326 | cmp eax, ecx |
||
1327 | jz @f |
||
1328 | call free_page |
||
1289 | diamond | 1329 | @@: |
2434 | Serge | 1330 | pop eax |
1331 | invlpg [eax] |
||
1332 | add eax, 0x1000 |
||
1333 | inc ebx |
||
1334 | inc esi |
||
1335 | sub edx, 0x1000 |
||
1336 | ja .unmap_loop |
||
1337 | pop ebx |
||
1338 | and dword [page_tabs+(ebx-1)*4], not DONT_FREE_BLOCK |
||
1339 | call user_free |
||
1292 | diamond | 1340 | ; Restore context. |
2434 | Serge | 1341 | pop eax |
1342 | mov cr3, eax |
||
1343 | pop [current_slot] |
||
1344 | popf |
||
1292 | diamond | 1345 | ; Ok, cheating is done. |
2434 | Serge | 1346 | pop eax |
1347 | push eax |
||
1348 | mov esi, [eax+HDLL.parent] |
||
1349 | mov eax, [eax+HDLL.refcount] |
||
1350 | call dereference_dll |
||
1351 | pop eax |
||
1352 | mov edx, [eax+HDLL.bk] |
||
1353 | mov ebx, [eax+HDLL.fd] |
||
1354 | mov [ebx+HDLL.bk], edx |
||
1355 | mov [edx+HDLL.fd], ebx |
||
1356 | call free |
||
1357 | pop edi esi ecx ebx |
||
1358 | ret |
||
1289 | diamond | 1359 | |
1311 | diamond | 1360 | ; ecx -> APPDATA for slot, esi = dlls_list_ptr |
1361 | destroy_all_hdlls: |
||
2434 | Serge | 1362 | test esi, esi |
1363 | jz .ret |
||
1311 | diamond | 1364 | .loop: |
2434 | Serge | 1365 | mov eax, [esi+HDLL.fd] |
1366 | cmp eax, esi |
||
1367 | jz free |
||
1368 | call destroy_hdll |
||
1369 | jmp .loop |
||
1311 | diamond | 1370 | .ret: |
2434 | Serge | 1371 | ret |
1311 | diamond | 1372 | |
214 | serge | 1373 | align 4 |
1275 | serge | 1374 | stop_all_services: |
2434 | Serge | 1375 | push ebp |
1376 | mov edx, [srv.fd] |
||
214 | serge | 1377 | .next: |
2434 | Serge | 1378 | cmp edx, srv.fd-SRV.fd |
1379 | je .done |
||
1380 | cmp [edx+SRV.magic], ' SRV' |
||
1381 | jne .next |
||
1382 | cmp [edx+SRV.size], sizeof.SRV |
||
1383 | jne .next |
||
732 | serge | 1384 | |
2434 | Serge | 1385 | mov ebx, [edx+SRV.entry] |
1386 | mov edx, [edx+SRV.fd] |
||
1387 | test ebx, ebx |
||
1388 | jz .next |
||
732 | serge | 1389 | |
2434 | Serge | 1390 | push edx |
1391 | mov ebp, esp |
||
1392 | push 0 |
||
1393 | push -1 |
||
1394 | call ebx |
||
1395 | mov esp, ebp |
||
1396 | pop edx |
||
1397 | jmp .next |
||
278 | serge | 1398 | .done: |
2434 | Serge | 1399 | pop ebp |
1400 | ret |
||
198 | serge | 1401 | |
281 | serge | 1402 | ; param |
291 | serge | 1403 | ; eax= size |
1404 | ; ebx= pid |
||
214 | serge | 1405 | |
281 | serge | 1406 | align 4 |
1407 | create_kernel_object: |
||
1408 | |||
2434 | Serge | 1409 | push ebx |
1410 | call malloc |
||
1411 | pop ebx |
||
1412 | test eax, eax |
||
1413 | jz .fail |
||
281 | serge | 1414 | |
2434 | Serge | 1415 | mov ecx, [current_slot] |
1416 | add ecx, APP_OBJ_OFFSET |
||
281 | serge | 1417 | |
2434 | Serge | 1418 | pushfd |
1419 | cli |
||
1420 | mov edx, [ecx+APPOBJ.fd] |
||
1421 | mov [eax+APPOBJ.fd], edx |
||
1422 | mov [eax+APPOBJ.bk], ecx |
||
1423 | mov [eax+APPOBJ.pid], ebx |
||
281 | serge | 1424 | |
2434 | Serge | 1425 | mov [ecx+APPOBJ.fd], eax |
1426 | mov [edx+APPOBJ.bk], eax |
||
1427 | popfd |
||
281 | serge | 1428 | .fail: |
2434 | Serge | 1429 | ret |
281 | serge | 1430 | |
1431 | ; param |
||
1432 | ; eax= object |
||
1433 | |||
1434 | align 4 |
||
1435 | destroy_kernel_object: |
||
1436 | |||
2434 | Serge | 1437 | pushfd |
1438 | cli |
||
1439 | mov ebx, [eax+APPOBJ.fd] |
||
1440 | mov ecx, [eax+APPOBJ.bk] |
||
1441 | mov [ebx+APPOBJ.bk], ecx |
||
1442 | mov [ecx+APPOBJ.fd], ebx |
||
1443 | popfd |
||
281 | serge | 1444 | |
2434 | Serge | 1445 | xor edx, edx ;clear common header |
1446 | mov [eax], edx |
||
1447 | mov [eax+4], edx |
||
1448 | mov [eax+8], edx |
||
1449 | mov [eax+12], edx |
||
1450 | mov [eax+16], edx |
||
281 | serge | 1451 | |
2434 | Serge | 1452 | call free ;release object memory |
1453 | ret |