Rev 3678 | Rev 3702 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
7 | |||
8 | $Revision: 3689 $ |
||
9 | |||
2889 | turbanoff | 10 | ERROR_SUCCESS = 0 |
11 | ERROR_DISK_BASE = 1 |
||
12 | ERROR_UNSUPPORTED_FS = 2 |
||
13 | ERROR_UNKNOWN_FS = 3 |
||
14 | ERROR_PARTITION = 4 |
||
15 | ERROR_FILE_NOT_FOUND = 5 |
||
16 | ERROR_END_OF_FILE = 6 |
||
17 | ERROR_MEMORY_POINTER = 7 |
||
18 | ERROR_DISK_FULL = 8 |
||
19 | ERROR_FAT_TABLE = 9 ;deprecated |
||
20 | ERROR_FS_FAIL = 9 |
||
21 | ERROR_ACCESS_DENIED = 10 |
||
22 | ERROR_DEVICE = 11 |
||
2288 | clevermous | 23 | |
24 | image_of_eax EQU esp+32 |
||
25 | image_of_ebx EQU esp+20 |
||
26 | |||
27 | ; System function 70 - files with long names (LFN) |
||
28 | ; diamond, 2006 |
||
29 | |||
30 | iglobal |
||
31 | ; in this table names must be in lowercase |
||
32 | rootdirs: |
||
33 | db 2,'rd' |
||
34 | dd fs_OnRamdisk |
||
35 | dd fs_NextRamdisk |
||
36 | db 7,'ramdisk' |
||
37 | dd fs_OnRamdisk |
||
38 | dd fs_NextRamdisk |
||
39 | db 2,'fd' |
||
40 | dd fs_OnFloppy |
||
41 | dd fs_NextFloppy |
||
42 | db 10,'floppydisk' |
||
43 | dd fs_OnFloppy |
||
44 | dd fs_NextFloppy |
||
45 | db 3,'hd0' |
||
46 | dd fs_OnHd0 |
||
47 | dd fs_NextHd0 |
||
48 | db 3,'hd1' |
||
49 | dd fs_OnHd1 |
||
50 | dd fs_NextHd1 |
||
51 | db 3,'hd2' |
||
52 | dd fs_OnHd2 |
||
53 | dd fs_NextHd2 |
||
54 | db 3,'hd3' |
||
55 | dd fs_OnHd3 |
||
56 | dd fs_NextHd3 |
||
57 | ;********************************************** |
||
58 | db 3,'cd0' |
||
59 | dd fs_OnCd0 |
||
60 | dd fs_NextCd |
||
61 | db 3,'cd1' |
||
62 | dd fs_OnCd1 |
||
63 | dd fs_NextCd |
||
64 | db 3,'cd2' |
||
65 | dd fs_OnCd2 |
||
66 | dd fs_NextCd |
||
67 | db 3,'cd3' |
||
68 | dd fs_OnCd3 |
||
69 | dd fs_NextCd |
||
70 | ;*********************************************** |
||
71 | db 0 |
||
72 | |||
73 | |||
74 | virtual_root_query: |
||
75 | dd fs_HasRamdisk |
||
76 | db 'rd',0 |
||
77 | dd fs_HasFloppy |
||
78 | db 'fd',0 |
||
79 | dd fs_HasHd0 |
||
80 | db 'hd0',0 |
||
81 | dd fs_HasHd1 |
||
82 | db 'hd1',0 |
||
83 | dd fs_HasHd2 |
||
84 | db 'hd2',0 |
||
85 | dd fs_HasHd3 |
||
86 | db 'hd3',0 |
||
87 | ;********************************************** |
||
88 | dd fs_HasCd0 |
||
89 | db 'cd0',0 |
||
90 | dd fs_HasCd1 |
||
91 | db 'cd1',0 |
||
92 | dd fs_HasCd2 |
||
93 | db 'cd2',0 |
||
94 | dd fs_HasCd3 |
||
95 | db 'cd3',0 |
||
96 | ;********************************************** |
||
97 | dd 0 |
||
98 | |||
99 | fs_additional_handlers: |
||
100 | dd biosdisk_handler, biosdisk_enum_root |
||
101 | dd dyndisk_handler, dyndisk_enum_root |
||
102 | ; add new handlers here |
||
103 | dd 0 |
||
104 | |||
105 | endg |
||
3296 | clevermous | 106 | |
107 | file_system_lfn_protected: |
||
108 | pushad |
||
109 | call protect_from_terminate |
||
110 | call file_system_lfn |
||
111 | call unprotect_from_terminate |
||
112 | popad |
||
113 | mov [image_of_eax], eax |
||
114 | mov [image_of_ebx], ebx |
||
115 | ret |
||
116 | |||
2288 | clevermous | 117 | file_system_lfn: |
118 | ; in: ebx->fileinfo block |
||
119 | ; operation codes: |
||
120 | ; 0 : read file |
||
121 | ; 1 : read folder |
||
122 | ; 2 : create/rewrite file |
||
123 | ; 3 : write/append to file |
||
124 | ; 4 : set end of file |
||
125 | ; 5 : get file/directory attributes structure |
||
126 | ; 6 : set file/directory attributes structure |
||
127 | ; 7 : start application |
||
128 | ; 8 : delete file |
||
129 | ; 9 : create directory |
||
130 | |||
131 | ; parse file name |
||
132 | lea esi, [ebx+20] |
||
133 | lodsb |
||
134 | test al, al |
||
135 | jnz @f |
||
136 | mov esi, [esi] |
||
137 | lodsb |
||
138 | @@: |
||
139 | cmp al, '/' |
||
140 | jz .notcurdir |
||
141 | dec esi |
||
142 | mov ebp, esi |
||
143 | test al, al |
||
144 | jnz @f |
||
145 | xor ebp, ebp |
||
146 | @@: |
||
147 | mov esi, [current_slot] |
||
148 | mov esi, [esi+APPDATA.cur_dir] |
||
149 | jmp .parse_normal |
||
150 | .notcurdir: |
||
151 | cmp byte [esi], 0 |
||
152 | jz .rootdir |
||
153 | call process_replace_file_name |
||
154 | .parse_normal: |
||
155 | cmp dword [ebx], 7 |
||
156 | jne @F |
||
157 | mov edx, [ebx+4] |
||
158 | mov ebx, [ebx+8] |
||
159 | call fs_execute; esi+ebp, ebx, edx |
||
160 | mov [image_of_eax], eax |
||
161 | ret |
||
162 | @@: |
||
163 | mov edi, rootdirs-8 |
||
164 | xor ecx, ecx |
||
165 | push esi |
||
166 | .scan1: |
||
167 | pop esi |
||
168 | add edi, ecx |
||
169 | scasd |
||
170 | scasd |
||
171 | mov cl, byte [edi] |
||
172 | test cl, cl |
||
173 | jz .notfound_try |
||
174 | inc edi |
||
175 | push esi |
||
176 | @@: |
||
177 | lodsb |
||
178 | or al, 20h |
||
179 | scasb |
||
180 | loopz @b |
||
181 | jnz .scan1 |
||
182 | lodsb |
||
183 | cmp al, '/' |
||
184 | jz .found1 |
||
185 | test al, al |
||
186 | jnz .scan1 |
||
187 | pop eax |
||
188 | ; directory /xxx |
||
189 | .maindir: |
||
190 | mov esi, [edi+4] |
||
191 | .maindir_noesi: |
||
192 | cmp dword [ebx], 1 |
||
193 | jnz .access_denied |
||
194 | xor eax, eax |
||
195 | mov ebp, [ebx+12] ;количество блоков для считывания |
||
196 | mov edx, [ebx+16] ;куда записывать рузельтат |
||
197 | ; add edx, std_application_base_address |
||
198 | push dword [ebx+4] ; first block |
||
199 | mov ebx, [ebx+8] ; flags |
||
200 | ; ebx=flags, [esp]=first block, ebp=number of blocks, edx=return area, esi='Next' handler |
||
201 | mov edi, edx |
||
202 | push ecx |
||
203 | mov ecx, 32/4 |
||
204 | rep stosd |
||
205 | pop ecx |
||
206 | mov byte [edx], 1 ; version |
||
207 | .maindir_loop: |
||
208 | call esi |
||
209 | jc .maindir_done |
||
210 | inc dword [edx+8] |
||
211 | dec dword [esp] |
||
212 | jns .maindir_loop |
||
213 | dec ebp |
||
214 | js .maindir_loop |
||
215 | inc dword [edx+4] |
||
216 | mov dword [edi], 0x10 ; attributes: folder |
||
217 | mov dword [edi+4], 1 ; name type: UNICODE |
||
218 | push eax |
||
219 | xor eax, eax |
||
220 | add edi, 8 |
||
221 | push ecx |
||
222 | mov ecx, 40/4-2 |
||
223 | rep stosd |
||
224 | pop ecx |
||
225 | pop eax |
||
226 | push eax edx |
||
227 | ; convert number in eax to decimal UNICODE string |
||
228 | push edi |
||
229 | push ecx |
||
230 | push -'0' |
||
231 | mov ecx, 10 |
||
232 | @@: |
||
233 | xor edx, edx |
||
234 | div ecx |
||
235 | push edx |
||
236 | test eax, eax |
||
237 | jnz @b |
||
238 | @@: |
||
239 | pop eax |
||
240 | add al, '0' |
||
241 | stosb |
||
242 | test bl, 1 ; UNICODE name? |
||
243 | jz .ansi2 |
||
244 | mov byte [edi], 0 |
||
245 | inc edi |
||
246 | .ansi2: |
||
247 | test al, al |
||
248 | jnz @b |
||
249 | mov byte [edi-1], 0 |
||
250 | pop ecx |
||
251 | pop edi |
||
252 | ; UNICODE name length is 520 bytes, ANSI - 264 |
||
253 | add edi, 520 |
||
254 | test bl, 1 |
||
255 | jnz @f |
||
256 | sub edi, 520-264 |
||
257 | @@: |
||
258 | pop edx eax |
||
259 | jmp .maindir_loop |
||
260 | .maindir_done: |
||
261 | pop eax |
||
262 | mov ebx, [edx+4] |
||
263 | xor eax, eax |
||
264 | dec ebp |
||
265 | js @f |
||
266 | mov al, ERROR_END_OF_FILE |
||
267 | @@: |
||
268 | mov [image_of_eax], eax |
||
269 | mov [image_of_ebx], ebx |
||
270 | ret |
||
271 | ; directory / |
||
272 | .rootdir: |
||
273 | cmp dword [ebx], 1 ; read folder? |
||
274 | jz .readroot |
||
275 | .access_denied: |
||
276 | mov dword [image_of_eax], 10 ; access denied |
||
277 | ret |
||
278 | |||
279 | .readroot: |
||
280 | ; virtual root folder - special handler |
||
281 | mov esi, virtual_root_query |
||
282 | mov ebp, [ebx+12] |
||
283 | mov edx, [ebx+16] |
||
284 | ; add edx, std_application_base_address |
||
285 | push dword [ebx+4] ; first block |
||
286 | mov ebx, [ebx+8] ; flags |
||
287 | xor eax, eax |
||
288 | ; eax=0, [esp]=first block, ebx=flags, ebp=number of blocks, edx=return area |
||
289 | mov edi, edx |
||
290 | mov ecx, 32/4 |
||
291 | rep stosd |
||
292 | mov byte [edx], 1 ; version |
||
293 | .readroot_loop: |
||
294 | cmp dword [esi], eax |
||
295 | jz .readroot_done_static |
||
296 | call dword [esi] |
||
297 | add esi, 4 |
||
298 | test eax, eax |
||
299 | jnz @f |
||
300 | .readroot_next: |
||
301 | or ecx, -1 |
||
302 | xchg esi, edi |
||
303 | repnz scasb |
||
304 | xchg esi, edi |
||
305 | jmp .readroot_loop |
||
306 | @@: |
||
307 | xor eax, eax |
||
308 | inc dword [edx+8] |
||
309 | dec dword [esp] |
||
310 | jns .readroot_next |
||
311 | dec ebp |
||
312 | js .readroot_next |
||
313 | inc dword [edx+4] |
||
314 | mov dword [edi], 0x10 ; attributes: folder |
||
315 | mov dword [edi+4], ebx ; name type: UNICODE |
||
316 | add edi, 8 |
||
317 | mov ecx, 40/4-2 |
||
318 | rep stosd |
||
319 | push edi |
||
320 | @@: |
||
321 | lodsb |
||
322 | stosb |
||
323 | test bl, 1 |
||
324 | jz .ansi |
||
325 | mov byte [edi], 0 |
||
326 | inc edi |
||
327 | .ansi: |
||
328 | test eax, eax |
||
329 | jnz @b |
||
330 | pop edi |
||
331 | add edi, 520 |
||
332 | test bl, 1 |
||
333 | jnz .readroot_loop |
||
334 | sub edi, 520-264 |
||
335 | jmp .readroot_loop |
||
336 | .readroot_done_static: |
||
337 | mov esi, fs_additional_handlers-8 |
||
338 | sub esp, 16 |
||
339 | .readroot_ah_loop: |
||
340 | add esi, 8 |
||
341 | cmp dword [esi], 0 |
||
342 | jz .readroot_done |
||
343 | xor eax, eax |
||
344 | .readroot_ah_loop2: |
||
345 | push edi |
||
346 | lea edi, [esp+4] |
||
347 | call dword [esi+4] |
||
348 | pop edi |
||
349 | test eax, eax |
||
350 | jz .readroot_ah_loop |
||
351 | inc dword [edx+8] |
||
352 | dec dword [esp+16] |
||
353 | jns .readroot_ah_loop2 |
||
354 | dec ebp |
||
355 | js .readroot_ah_loop2 |
||
356 | push eax |
||
357 | xor eax, eax |
||
358 | inc dword [edx+4] |
||
359 | mov dword [edi], 0x10 ; attributes: folder |
||
360 | mov dword [edi+4], ebx |
||
361 | add edi, 8 |
||
362 | mov ecx, 40/4-2 |
||
363 | rep stosd |
||
364 | push esi edi |
||
365 | lea esi, [esp+12] |
||
366 | @@: |
||
367 | lodsb |
||
368 | stosb |
||
369 | test bl, 1 |
||
370 | jz .ansi3 |
||
371 | mov byte [edi], 0 |
||
372 | inc edi |
||
373 | .ansi3: |
||
374 | test al, al |
||
375 | jnz @b |
||
376 | pop edi esi eax |
||
377 | add edi, 520 |
||
378 | test bl, 1 |
||
379 | jnz .readroot_ah_loop2 |
||
380 | sub edi, 520-264 |
||
381 | jmp .readroot_ah_loop2 |
||
382 | .readroot_done: |
||
383 | add esp, 16 |
||
384 | pop eax |
||
385 | mov ebx, [edx+4] |
||
386 | xor eax, eax |
||
387 | dec ebp |
||
388 | js @f |
||
389 | mov al, ERROR_END_OF_FILE |
||
390 | @@: |
||
391 | mov [image_of_eax], eax |
||
392 | mov [image_of_ebx], ebx |
||
393 | ret |
||
394 | .notfound_try: |
||
395 | mov edi, fs_additional_handlers |
||
396 | @@: |
||
397 | cmp dword [edi], 0 |
||
398 | jz .notfound |
||
399 | call dword [edi] |
||
400 | scasd |
||
401 | scasd |
||
402 | jmp @b |
||
403 | .notfound: |
||
404 | mov dword [image_of_eax], ERROR_FILE_NOT_FOUND |
||
405 | and dword [image_of_ebx], 0 |
||
406 | ret |
||
407 | |||
408 | .notfounda: |
||
409 | cmp edi, esp |
||
410 | jnz .notfound |
||
411 | call dword [edi+4] |
||
412 | add esp, 16 |
||
413 | jmp .notfound |
||
414 | |||
415 | .found1: |
||
416 | pop eax |
||
417 | cmp byte [esi], 0 |
||
418 | jz .maindir |
||
419 | .found2: |
||
420 | ; read partition number |
||
421 | xor ecx, ecx |
||
422 | xor eax, eax |
||
423 | @@: |
||
424 | lodsb |
||
425 | cmp al, '/' |
||
426 | jz .done1 |
||
427 | test al, al |
||
428 | jz .done1 |
||
429 | sub al, '0' |
||
430 | cmp al, 9 |
||
431 | ja .notfounda |
||
432 | lea ecx, [ecx*5] |
||
433 | lea ecx, [ecx*2+eax] |
||
434 | jmp @b |
||
435 | .done1: |
||
436 | jecxz .notfounda |
||
437 | test al, al |
||
438 | jnz @f |
||
439 | dec esi |
||
440 | @@: |
||
441 | cmp byte [esi], 0 |
||
442 | jnz @f |
||
443 | test ebp, ebp |
||
444 | jz @f |
||
445 | mov esi, ebp |
||
446 | xor ebp, ebp |
||
447 | @@: |
||
448 | ; now [edi] contains handler address, ecx - partition number, |
||
449 | ; esi points to ASCIIZ string - rest of name |
||
450 | jmp dword [edi] |
||
451 | |||
452 | ; handlers for devices |
||
453 | ; in: ecx = 0 => query virtual directory /xxx |
||
454 | ; in: ecx = partition number |
||
455 | ; esi -> relative (for device) name |
||
456 | ; ebx -> fileinfo |
||
457 | ; ebp = 0 or pointer to rest of name from folder addressed by esi |
||
458 | ; out: [image_of_eax]=image of eax, [image_of_ebx]=image of ebx |
||
459 | |||
460 | fs_OnRamdisk: |
||
461 | cmp ecx, 1 |
||
462 | jnz file_system_lfn.notfound |
||
463 | mov eax, [ebx] |
||
464 | cmp eax, fs_NumRamdiskServices |
||
465 | jae .not_impl |
||
466 | mov ecx, [ebx+12] |
||
467 | mov edx, [ebx+16] |
||
468 | ; add edx, std_application_base_address |
||
469 | add ebx, 4 |
||
470 | call dword [fs_RamdiskServices + eax*4] |
||
471 | mov [image_of_eax], eax |
||
472 | mov [image_of_ebx], ebx |
||
473 | ret |
||
474 | .not_impl: |
||
475 | mov dword [image_of_eax], 2 ; not implemented |
||
476 | ret |
||
477 | |||
478 | fs_NotImplemented: |
||
479 | mov eax, 2 |
||
480 | ret |
||
481 | |||
482 | fs_RamdiskServices: |
||
483 | dd fs_RamdiskRead |
||
484 | dd fs_RamdiskReadFolder |
||
485 | dd fs_RamdiskRewrite |
||
486 | dd fs_RamdiskWrite |
||
487 | dd fs_RamdiskSetFileEnd |
||
488 | dd fs_RamdiskGetFileInfo |
||
489 | dd fs_RamdiskSetFileInfo |
||
490 | dd 0 |
||
491 | dd fs_RamdiskDelete |
||
492 | dd fs_RamdiskCreateFolder |
||
493 | fs_NumRamdiskServices = ($ - fs_RamdiskServices)/4 |
||
494 | |||
495 | fs_OnFloppy: |
||
496 | cmp ecx, 2 |
||
497 | ja file_system_lfn.notfound |
||
498 | mov eax, [ebx] |
||
499 | cmp eax, fs_NumFloppyServices |
||
500 | jae fs_OnRamdisk.not_impl |
||
501 | call reserve_flp |
||
502 | mov [flp_number], cl |
||
503 | mov ecx, [ebx+12] |
||
504 | mov edx, [ebx+16] |
||
505 | ; add edx, std_application_base_address |
||
506 | add ebx, 4 |
||
507 | call dword [fs_FloppyServices + eax*4] |
||
508 | and [flp_status], 0 |
||
509 | mov [image_of_eax], eax |
||
510 | mov [image_of_ebx], ebx |
||
511 | ret |
||
512 | |||
513 | fs_FloppyServices: |
||
514 | dd fs_FloppyRead |
||
515 | dd fs_FloppyReadFolder |
||
516 | dd fs_FloppyRewrite |
||
517 | dd fs_FloppyWrite |
||
518 | dd fs_FloppySetFileEnd |
||
519 | dd fs_FloppyGetFileInfo |
||
520 | dd fs_FloppySetFileInfo |
||
521 | dd 0 |
||
522 | dd fs_FloppyDelete |
||
523 | dd fs_FloppyCreateFolder |
||
524 | fs_NumFloppyServices = ($ - fs_FloppyServices)/4 |
||
525 | |||
526 | fs_OnHd0: |
||
527 | call reserve_hd1 |
||
528 | mov [hdbase], 0x1F0 |
||
529 | mov [hdid], 0 |
||
530 | push 1 |
||
531 | jmp fs_OnHd |
||
532 | fs_OnHd1: |
||
533 | call reserve_hd1 |
||
534 | mov [hdbase], 0x1F0 |
||
535 | mov [hdid], 0x10 |
||
536 | push 2 |
||
537 | jmp fs_OnHd |
||
538 | fs_OnHd2: |
||
539 | call reserve_hd1 |
||
540 | mov [hdbase], 0x170 |
||
541 | mov [hdid], 0 |
||
542 | push 3 |
||
543 | jmp fs_OnHd |
||
544 | fs_OnHd3: |
||
545 | call reserve_hd1 |
||
546 | mov [hdbase], 0x170 |
||
547 | mov [hdid], 0x10 |
||
548 | push 4 |
||
549 | fs_OnHd: |
||
550 | call reserve_hd_channel |
||
551 | pop eax |
||
552 | mov [hdpos], eax |
||
553 | cmp ecx, 0x100 |
||
554 | jae fs_OnHdAndBd.nf |
||
555 | cmp cl, [DRIVE_DATA+1+eax] |
||
556 | fs_OnHdAndBd: |
||
557 | jbe @f |
||
558 | .nf: |
||
559 | call free_hd_channel |
||
560 | and [hd1_status], 0 |
||
561 | mov dword [image_of_eax], 5 ; not found |
||
562 | ret |
||
563 | @@: |
||
564 | mov [known_part], ecx ; mov [fat32part], ecx |
||
565 | push ebx esi |
||
566 | call choice_necessity_partition_1 |
||
567 | pop esi ebx |
||
568 | mov ecx, [ebx+12] |
||
569 | mov edx, [ebx+16] |
||
570 | ; add edx, std_application_base_address |
||
571 | mov eax, [ebx] |
||
572 | cmp eax, fs_NumHdServices |
||
573 | jae .not_impl |
||
574 | add ebx, 4 |
||
575 | call dword [fs_HdServices + eax*4] |
||
576 | call free_hd_channel |
||
577 | and [hd1_status], 0 |
||
578 | mov [image_of_eax], eax |
||
579 | mov [image_of_ebx], ebx |
||
580 | ret |
||
581 | .not_impl: |
||
582 | call free_hd_channel |
||
583 | and [hd1_status], 0 |
||
584 | mov dword [image_of_eax], 2 ; not implemented |
||
585 | ret |
||
586 | |||
587 | fs_HdServices: |
||
588 | dd fs_HdRead |
||
589 | dd fs_HdReadFolder |
||
590 | dd fs_HdRewrite |
||
591 | dd fs_HdWrite |
||
592 | dd fs_HdSetFileEnd |
||
593 | dd fs_HdGetFileInfo |
||
594 | dd fs_HdSetFileInfo |
||
595 | dd 0 |
||
596 | dd fs_HdDelete |
||
597 | dd fs_HdCreateFolder |
||
598 | fs_NumHdServices = ($ - fs_HdServices)/4 |
||
599 | |||
600 | ;******************************************************* |
||
601 | fs_OnCd0: |
||
602 | call reserve_cd |
||
603 | mov [ChannelNumber], 1 |
||
604 | mov [DiskNumber], 0 |
||
605 | push 6 |
||
606 | push 1 |
||
607 | jmp fs_OnCd |
||
608 | fs_OnCd1: |
||
609 | call reserve_cd |
||
610 | mov [ChannelNumber], 1 |
||
611 | mov [DiskNumber], 1 |
||
612 | push 4 |
||
613 | push 2 |
||
614 | jmp fs_OnCd |
||
615 | fs_OnCd2: |
||
616 | call reserve_cd |
||
617 | mov [ChannelNumber], 2 |
||
618 | mov [DiskNumber], 0 |
||
619 | push 2 |
||
620 | push 3 |
||
621 | jmp fs_OnCd |
||
622 | fs_OnCd3: |
||
623 | call reserve_cd |
||
624 | mov [ChannelNumber], 2 |
||
625 | mov [DiskNumber], 1 |
||
626 | push 0 |
||
627 | push 4 |
||
628 | fs_OnCd: |
||
629 | call reserve_cd_channel |
||
630 | pop eax |
||
631 | mov [cdpos], eax |
||
632 | pop eax |
||
633 | cmp ecx, 0x100 |
||
634 | jae .nf |
||
635 | push ecx ebx |
||
636 | mov cl, al |
||
637 | mov bl, [DRIVE_DATA+1] |
||
638 | shr bl, cl |
||
639 | test bl, 2 |
||
640 | pop ebx ecx |
||
641 | |||
642 | jnz @f |
||
643 | .nf: |
||
644 | call free_cd_channel |
||
645 | and [cd_status], 0 |
||
646 | mov dword [image_of_eax], 5 ; not found |
||
647 | ret |
||
648 | @@: |
||
649 | mov ecx, [ebx+12] |
||
650 | mov edx, [ebx+16] |
||
651 | ; add edx, std_application_base_address |
||
652 | mov eax, [ebx] |
||
653 | cmp eax, fs_NumCdServices |
||
654 | jae .not_impl |
||
655 | add ebx, 4 |
||
656 | call dword [fs_CdServices + eax*4] |
||
657 | call free_cd_channel |
||
658 | and [cd_status], 0 |
||
659 | mov [image_of_eax], eax |
||
660 | mov [image_of_ebx], ebx |
||
661 | ret |
||
662 | .not_impl: |
||
663 | call free_cd_channel |
||
664 | and [cd_status], 0 |
||
665 | mov dword [image_of_eax], 2 ; not implemented |
||
666 | ret |
||
667 | |||
668 | fs_CdServices: |
||
669 | dd fs_CdRead |
||
670 | dd fs_CdReadFolder |
||
671 | dd fs_NotImplemented |
||
672 | dd fs_NotImplemented |
||
673 | dd fs_NotImplemented |
||
674 | dd fs_CdGetFileInfo |
||
675 | dd fs_NotImplemented |
||
676 | dd 0 |
||
677 | dd fs_NotImplemented |
||
678 | dd fs_NotImplemented |
||
679 | fs_NumCdServices = ($ - fs_CdServices)/4 |
||
680 | |||
681 | ;******************************************************* |
||
682 | |||
683 | fs_HasRamdisk: |
||
684 | mov al, 1 ; we always have ramdisk |
||
685 | ret |
||
686 | fs_HasFloppy: |
||
687 | cmp byte [DRIVE_DATA], 0 |
||
688 | setnz al |
||
689 | ret |
||
690 | fs_HasHd0: |
||
3627 | Serge | 691 | test byte [DRIVE_DATA+1], 01000000b |
692 | setnz al |
||
2288 | clevermous | 693 | ret |
694 | fs_HasHd1: |
||
3627 | Serge | 695 | test byte [DRIVE_DATA+1], 00010000b |
696 | setnz al |
||
2288 | clevermous | 697 | ret |
698 | fs_HasHd2: |
||
3627 | Serge | 699 | test byte [DRIVE_DATA+1], 00000100b |
700 | setnz al |
||
2288 | clevermous | 701 | ret |
702 | fs_HasHd3: |
||
3627 | Serge | 703 | test byte [DRIVE_DATA+1], 00000001b |
704 | setnz al |
||
2288 | clevermous | 705 | ret |
706 | |||
707 | ;******************************************************* |
||
708 | fs_HasCd0: |
||
3627 | Serge | 709 | test byte [DRIVE_DATA+1], 10000000b |
710 | setnz al |
||
2288 | clevermous | 711 | ret |
712 | fs_HasCd1: |
||
3627 | Serge | 713 | test byte [DRIVE_DATA+1], 00100000b |
714 | setnz al |
||
2288 | clevermous | 715 | ret |
716 | fs_HasCd2: |
||
3627 | Serge | 717 | test byte [DRIVE_DATA+1], 00001000b |
718 | setnz al |
||
2288 | clevermous | 719 | ret |
720 | fs_HasCd3: |
||
3627 | Serge | 721 | test byte [DRIVE_DATA+1], 00000010b |
722 | setnz al |
||
2288 | clevermous | 723 | ret |
724 | ;******************************************************* |
||
725 | |||
726 | ; fs_NextXXX functions: |
||
727 | ; in: eax = partition number, from which start to scan |
||
728 | ; out: CF=1 => no more partitions |
||
729 | ; CF=0 => eax=next partition number |
||
730 | |||
731 | fs_NextRamdisk: |
||
732 | ; we always have /rd/1 |
||
733 | test eax, eax |
||
734 | stc |
||
735 | jnz @f |
||
736 | mov al, 1 |
||
737 | clc |
||
738 | @@: |
||
739 | ret |
||
740 | |||
741 | fs_NextFloppy: |
||
742 | ; we have /fd/1 iff (([DRIVE_DATA] and 0xF0) != 0) and /fd/2 iff (([DRIVE_DATA] and 0x0F) != 0) |
||
743 | test byte [DRIVE_DATA], 0xF0 |
||
744 | jz .no1 |
||
745 | test eax, eax |
||
746 | jnz .no1 |
||
747 | inc eax |
||
748 | ret ; CF cleared |
||
749 | .no1: |
||
750 | test byte [DRIVE_DATA], 0x0F |
||
751 | jz .no2 |
||
752 | cmp al, 2 |
||
753 | jae .no2 |
||
754 | mov al, 2 |
||
755 | clc |
||
756 | ret |
||
757 | .no2: |
||
758 | stc |
||
759 | ret |
||
760 | |||
761 | ; on hdx, we have partitions from 1 to [0x40002+x] |
||
762 | fs_NextHd0: |
||
763 | push 0 |
||
764 | jmp fs_NextHd |
||
765 | fs_NextHd1: |
||
766 | push 1 |
||
767 | jmp fs_NextHd |
||
768 | fs_NextHd2: |
||
769 | push 2 |
||
770 | jmp fs_NextHd |
||
771 | fs_NextHd3: |
||
772 | push 3 |
||
773 | fs_NextHd: |
||
774 | pop ecx |
||
775 | movzx ecx, byte [DRIVE_DATA+2+ecx] |
||
776 | cmp eax, ecx |
||
777 | jae fs_NextFloppy.no2 |
||
778 | inc eax |
||
779 | clc |
||
780 | ret |
||
781 | |||
782 | ;******************************************************* |
||
783 | fs_NextCd: |
||
784 | ; we always have /cdX/1 |
||
785 | test eax, eax |
||
786 | stc |
||
787 | jnz @f |
||
788 | mov al, 1 |
||
789 | clc |
||
790 | @@: |
||
791 | ret |
||
792 | ;******************************************************* |
||
793 | |||
794 | ; Additional FS handlers. |
||
795 | ; This handler gets the control each time when fn 70 is called |
||
796 | ; with unknown item of root subdirectory. |
||
797 | ; in: esi -> name |
||
798 | ; ebp = 0 or rest of name relative to esi |
||
799 | ; out: if the handler processes path, he must not return in file_system_lfn, |
||
800 | ; but instead pop return address and return directly to the caller |
||
801 | ; otherwise simply return |
||
802 | |||
803 | ; here we test for /bd |
||
804 | biosdisk_handler: |
||
805 | cmp [NumBiosDisks], 0 |
||
806 | jz .ret |
||
807 | mov al, [esi] |
||
808 | or al, 20h |
||
809 | cmp al, 'b' |
||
810 | jnz .ret |
||
811 | mov al, [esi+1] |
||
812 | or al, 20h |
||
813 | cmp al, 'd' |
||
814 | jnz .ret |
||
815 | push esi |
||
816 | inc esi |
||
817 | inc esi |
||
818 | cmp byte [esi], '0' |
||
819 | jb .ret2 |
||
820 | cmp byte [esi], '9' |
||
821 | ja .ret2 |
||
822 | xor edx, edx |
||
823 | @@: |
||
824 | lodsb |
||
825 | test al, al |
||
826 | jz .ok |
||
827 | cmp al, '/' |
||
828 | jz .ok |
||
829 | sub al, '0' |
||
830 | cmp al, 9 |
||
831 | ja .ret2 |
||
832 | lea edx, [edx*5] |
||
833 | lea edx, [edx*2+eax] |
||
834 | jmp @b |
||
835 | .ret2: |
||
836 | pop esi |
||
837 | .ret: |
||
838 | ret |
||
839 | .ok: |
||
840 | cmp al, '/' |
||
841 | jz @f |
||
842 | dec esi |
||
843 | @@: |
||
844 | add dl, 80h |
||
845 | xor ecx, ecx |
||
846 | @@: |
||
847 | cmp dl, [BiosDisksData+ecx*4] |
||
848 | jz .ok2 |
||
849 | inc ecx |
||
850 | cmp ecx, [NumBiosDisks] |
||
851 | jb @b |
||
852 | jmp .ret2 |
||
853 | .ok2: |
||
854 | add esp, 8 |
||
855 | test al, al |
||
856 | jnz @f |
||
857 | mov esi, fs_BdNext |
||
858 | jmp file_system_lfn.maindir_noesi |
||
859 | @@: |
||
860 | push ecx |
||
861 | push ecx |
||
862 | push biosdisk_cleanup |
||
863 | push fs_OnBd |
||
864 | mov edi, esp |
||
865 | jmp file_system_lfn.found2 |
||
866 | |||
867 | fs_BdNext: |
||
868 | cmp eax, [BiosDiskPartitions+ecx*4] |
||
869 | inc eax |
||
870 | cmc |
||
871 | biosdisk_cleanup: |
||
872 | ret |
||
873 | |||
874 | fs_OnBd: |
||
875 | pop edx edx edx edx |
||
876 | ; edx = disk number, ecx = partition number |
||
877 | ; esi+ebp = name |
||
878 | call reserve_hd1 |
||
879 | add edx, 0x80 |
||
880 | mov [hdpos], edx |
||
881 | cmp ecx, [BiosDiskPartitions+(edx-0x80)*4] |
||
882 | jmp fs_OnHdAndBd |
||
883 | |||
884 | ; This handler is called when virtual root is enumerated |
||
885 | ; and must return all items which can be handled by this. |
||
886 | ; It is called several times, first time with eax=0 |
||
887 | ; in: eax = 0 for first call, previously returned value for subsequent calls |
||
888 | ; out: eax = 0 => no more items |
||
889 | ; eax != 0 => buffer pointed to by edi contains name of item |
||
890 | |||
891 | ; here we enumerate existing BIOS disks /bd |
||
892 | biosdisk_enum_root: |
||
893 | cmp eax, [NumBiosDisks] |
||
894 | jae .end |
||
895 | push eax |
||
896 | movzx eax, byte [BiosDisksData+eax*4] |
||
897 | sub al, 80h |
||
898 | push eax |
||
899 | mov al, 'b' |
||
900 | stosb |
||
901 | mov al, 'd' |
||
902 | stosb |
||
903 | pop eax |
||
904 | cmp al, 10 |
||
905 | jae .big |
||
906 | add al, '0' |
||
907 | stosb |
||
908 | mov byte [edi], 0 |
||
909 | pop eax |
||
910 | inc eax |
||
911 | ret |
||
912 | .end: |
||
913 | xor eax, eax |
||
914 | ret |
||
915 | .big: |
||
916 | push ecx edx |
||
917 | push -'0' |
||
918 | mov ecx, 10 |
||
919 | @@: |
||
920 | xor edx, edx |
||
921 | div ecx |
||
922 | push edx |
||
923 | test eax, eax |
||
924 | jnz @b |
||
925 | xchg eax, edx |
||
926 | @@: |
||
927 | pop eax |
||
928 | add al, '0' |
||
929 | stosb |
||
930 | jnz @b |
||
931 | pop edx ecx |
||
932 | pop eax |
||
933 | inc eax |
||
934 | ret |
||
3689 | mario79 | 935 | ;----------------------------------------------------------------------------- |
2288 | clevermous | 936 | process_replace_file_name: |
3663 | mario79 | 937 | ; in |
938 | ; esi - path with filename(f.70) |
||
939 | ; |
||
940 | ; out |
||
941 | ; ebp - full filename |
||
3689 | mario79 | 942 | pushfd |
943 | cli |
||
2288 | clevermous | 944 | mov ebp, [full_file_name_table] |
3689 | mario79 | 945 | xor edi, edi |
2288 | clevermous | 946 | .loop: |
3689 | mario79 | 947 | cmp edi,[full_file_name_table.size] |
948 | jae .notfound |
||
2288 | clevermous | 949 | push esi edi |
3689 | mario79 | 950 | shl edi, 7 ; edi*128 |
951 | add edi, ebp |
||
2288 | clevermous | 952 | @@: |
3689 | mario79 | 953 | cmp byte [edi], 0 ; end of dir_name |
2288 | clevermous | 954 | jz .dest_done |
955 | lodsb |
||
956 | test al, al |
||
957 | jz .cont |
||
3689 | mario79 | 958 | or al, 20h ; 32 - space char |
2288 | clevermous | 959 | scasb |
960 | jz @b |
||
961 | jmp .cont |
||
962 | .dest_done: |
||
963 | cmp byte [esi], 0 |
||
964 | jz .found |
||
965 | cmp byte [esi], '/' |
||
966 | jnz .cont |
||
967 | inc esi |
||
968 | jmp .found |
||
969 | .cont: |
||
970 | pop edi esi |
||
3689 | mario79 | 971 | inc edi |
2288 | clevermous | 972 | jmp .loop |
973 | .found: |
||
974 | pop edi eax |
||
3689 | mario79 | 975 | shl edi, 7 ; edi*128 |
976 | add edi, ebp |
||
2288 | clevermous | 977 | mov ebp, esi |
978 | cmp byte [esi], 0 |
||
979 | lea esi, [edi+64] |
||
980 | jnz .ret |
||
981 | .notfound: |
||
982 | xor ebp, ebp |
||
983 | .ret: |
||
3689 | mario79 | 984 | popfd |
2288 | clevermous | 985 | ret |
3689 | mario79 | 986 | ;----------------------------------------------------------------------------- |
3663 | mario79 | 987 | uglobal |
988 | lock_flag_for_f30_3 rb 1 |
||
989 | endg |
||
990 | |||
2288 | clevermous | 991 | sys_current_directory: |
992 | ; mov esi, [current_slot] |
||
993 | ; mov esi, [esi+APPDATA.cur_dir] |
||
994 | ; mov edx, esi |
||
995 | |||
996 | ;get length string of appdata.cur_dir |
||
997 | mov eax, [current_slot] |
||
998 | mov edi, [eax+APPDATA.cur_dir] |
||
999 | |||
1000 | dec ebx |
||
1001 | jz .set |
||
1002 | dec ebx |
||
1003 | jz .get |
||
3663 | mario79 | 1004 | dec ebx |
1005 | jz .mount_additional_directory |
||
2288 | clevermous | 1006 | ret |
3663 | mario79 | 1007 | |
1008 | .mount_additional_directory: |
||
1009 | ; sysfunction 30.2: [for app] eax=30,ebx=3,ecx->dir name+dir path (128) |
||
1010 | ; for our code: nothing |
||
1011 | |||
1012 | ; check lock of the function |
||
1013 | cmp [lock_flag_for_f30_3], 1 |
||
1014 | je @f |
||
1015 | |||
1016 | mov esi, ecx |
||
1017 | mov edi, sysdir_name1 |
||
1018 | ; copying fake directory name |
||
1019 | mov ecx, 63 |
||
3678 | mario79 | 1020 | pushfd |
1021 | cli |
||
3663 | mario79 | 1022 | cld |
1023 | rep movsb |
||
1024 | ; terminator of name, in case if we get the inlet trash |
||
1025 | inc esi |
||
1026 | xor eax, eax |
||
1027 | stosb |
||
1028 | ; copying real directory path for mounting |
||
1029 | mov ecx, 63 |
||
1030 | rep movsb |
||
1031 | ; terminator of name, in case if we get the inlet trash |
||
1032 | xor eax, eax |
||
1033 | stosb |
||
1034 | ; increase the pointer of inputs for procedure "process_replace_file_name" |
||
1035 | mov [full_file_name_table.size], 2 |
||
1036 | ; block the ability to call f.30.3 because for one session is necessary |
||
1037 | ; for us only once |
||
1038 | mov [lock_flag_for_f30_3], 1 |
||
3678 | mario79 | 1039 | popfd |
3663 | mario79 | 1040 | @@: |
1041 | ret |
||
1042 | |||
2288 | clevermous | 1043 | .get: |
1044 | ; sysfunction 30.2: [for app] eax=30,ebx=2,ecx->buffer,edx=len |
||
1045 | ; for our code: ebx->buffer,ecx=len |
||
1046 | max_cur_dir equ 0x1000 |
||
1047 | |||
1048 | mov ebx, edi |
||
1049 | |||
1050 | push ecx |
||
1051 | push edi |
||
1052 | |||
1053 | xor eax, eax |
||
1054 | mov ecx, max_cur_dir |
||
1055 | |||
1056 | repne scasb ;find zerro at and string |
||
1057 | jnz .error ; no zero in cur_dir: internal error, should not happen |
||
1058 | |||
1059 | sub edi, ebx ;lenght for copy |
||
1060 | inc edi |
||
1061 | mov [esp+32+8], edi ;return in eax |
||
1062 | |||
1063 | cmp edx, edi |
||
1064 | jbe @f |
||
1065 | mov edx, edi |
||
1066 | @@: |
||
1067 | ;source string |
||
1068 | pop esi |
||
1069 | ;destination string |
||
1070 | pop edi |
||
1071 | cmp edx, 1 |
||
1072 | jbe .ret |
||
1073 | |||
1074 | mov al, '/' ;start string with '/' |
||
1075 | stosb |
||
1076 | mov ecx, edx |
||
1077 | rep movsb ;copy string |
||
1078 | .ret: |
||
1079 | ret |
||
1080 | |||
1081 | .error: |
||
1082 | add esp, 8 |
||
1083 | or dword [esp+32], -1 ;error not found zerro at string ->[eax+APPDATA.cur_dir] |
||
1084 | ret |
||
1085 | .set: |
||
1086 | ; sysfunction 30.1: [for app] eax=30,ebx=1,ecx->string |
||
1087 | ; for our code: ebx->string to set |
||
1088 | ; use generic resolver with APPDATA.cur_dir as destination |
||
1089 | push max_cur_dir ;0x1000 |
||
1090 | push edi ;destination |
||
1091 | mov ebx, ecx |
||
1092 | call get_full_file_name |
||
1093 | ret |
||
1094 | |||
1095 | ; in: ebx = file name, [esp+4] = destination, [esp+8] = sizeof destination |
||
1096 | ; destroys all registers except ebp,esp |
||
1097 | get_full_file_name: |
||
1098 | push ebp |
||
1099 | mov esi, [current_slot] |
||
1100 | mov esi, [esi+APPDATA.cur_dir] |
||
1101 | mov edx, esi |
||
1102 | @@: |
||
1103 | inc esi |
||
1104 | cmp byte [esi-1], 0 |
||
1105 | jnz @b |
||
1106 | dec esi |
||
1107 | cmp byte [ebx], '/' |
||
1108 | jz .set_absolute |
||
1109 | ; string gives relative path |
||
1110 | mov edi, [esp+8] ; destination |
||
1111 | .relative: |
||
1112 | cmp byte [ebx], 0 |
||
1113 | jz .set_ok |
||
1114 | cmp word [ebx], '.' |
||
1115 | jz .set_ok |
||
1116 | cmp word [ebx], './' |
||
1117 | jnz @f |
||
1118 | add ebx, 2 |
||
1119 | jmp .relative |
||
1120 | @@: |
||
1121 | cmp word [ebx], '..' |
||
1122 | jnz .doset_relative |
||
1123 | cmp byte [ebx+2], 0 |
||
1124 | jz @f |
||
1125 | cmp byte [ebx+2], '/' |
||
1126 | jnz .doset_relative |
||
1127 | @@: |
||
1128 | dec esi |
||
1129 | cmp byte [esi], '/' |
||
1130 | jnz @b |
||
1131 | add ebx, 3 |
||
1132 | jmp .relative |
||
1133 | .set_ok: |
||
1134 | cmp edx, edi ; is destination equal to APPDATA.cur_dir? |
||
1135 | jz .set_ok.cur_dir |
||
1136 | sub esi, edx |
||
1137 | cmp esi, [esp+12] |
||
1138 | jb .set_ok.copy |
||
1139 | .fail: |
||
1140 | mov byte [edi], 0 |
||
1141 | xor eax, eax ; fail |
||
1142 | pop ebp |
||
1143 | ret 8 |
||
1144 | .set_ok.copy: |
||
1145 | mov ecx, esi |
||
1146 | mov esi, edx |
||
1147 | rep movsb |
||
1148 | mov byte [edi], 0 |
||
1149 | .ret.ok: |
||
1150 | mov al, 1 ; ok |
||
1151 | pop ebp |
||
1152 | ret 8 |
||
1153 | .set_ok.cur_dir: |
||
1154 | mov byte [esi], 0 |
||
1155 | jmp .ret.ok |
||
1156 | .doset_relative: |
||
1157 | cmp edx, edi |
||
1158 | jz .doset_relative.cur_dir |
||
1159 | sub esi, edx |
||
1160 | cmp esi, [esp+12] |
||
1161 | jae .fail |
||
1162 | mov ecx, esi |
||
1163 | mov esi, edx |
||
1164 | mov edx, edi |
||
1165 | rep movsb |
||
1166 | jmp .doset_relative.copy |
||
1167 | .doset_relative.cur_dir: |
||
1168 | mov edi, esi |
||
1169 | .doset_relative.copy: |
||
1170 | add edx, [esp+12] |
||
1171 | mov byte [edi], '/' |
||
1172 | inc edi |
||
1173 | cmp edi, edx |
||
1174 | jae .overflow |
||
1175 | @@: |
||
1176 | mov al, [ebx] |
||
1177 | inc ebx |
||
1178 | stosb |
||
1179 | test al, al |
||
1180 | jz .ret.ok |
||
1181 | cmp edi, edx |
||
1182 | jb @b |
||
1183 | .overflow: |
||
1184 | dec edi |
||
1185 | jmp .fail |
||
1186 | .set_absolute: |
||
1187 | lea esi, [ebx+1] |
||
1188 | call process_replace_file_name |
||
1189 | mov edi, [esp+8] |
||
1190 | mov edx, [esp+12] |
||
1191 | add edx, edi |
||
1192 | .set_copy: |
||
1193 | lodsb |
||
1194 | stosb |
||
1195 | test al, al |
||
1196 | jz .set_part2 |
||
1197 | .set_copy_cont: |
||
1198 | cmp edi, edx |
||
1199 | jb .set_copy |
||
1200 | jmp .overflow |
||
1201 | .set_part2: |
||
1202 | mov esi, ebp |
||
1203 | xor ebp, ebp |
||
1204 | test esi, esi |
||
1205 | jz .ret.ok |
||
1206 | mov byte [edi-1], '/' |
||
1207 | jmp .set_copy_cont |