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Rev 1384 Rev 1387
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;;   23.01.2010  turbanoff  - support 70.0 70.1                 ;;
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;;   23.01.2010  turbanoff  - support 70.0 70.1                 ;;
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;;                                                              ;;
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;;                                                              ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 1384 $
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$Revision: 1387 $
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 12 
 
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EXT2_BAD_INO        = 1
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EXT2_BAD_INO        = 1
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EXT2_ROOT_INO        = 2
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EXT2_ROOT_INO        = 2
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        add     ebx, 512
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        add     ebx, 512
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        loop    @B
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        loop    @B
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        pop     ecx ebx eax
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        pop     ecx ebx eax
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        ret
 169 
        ret
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;===================================================================
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;===================================================================
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; in:  ecx = номер блока
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; in:  ecx = номер блока в inode (0..)
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;      ebp = адрес inode
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;      ebp = адрес inode
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; out: ecx = адрес очередного блока
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; out: ecx = адрес очередного блока
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ext2_get_inode_block:
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ext2_get_inode_block:
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        cmp     ecx, 12
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        cmp     ecx, 12                                         ; 0..11 - direct block address
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        jbe     .get_direct_block
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        jb      .get_direct_block
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        sub     ecx, 12
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        sub     ecx, 12
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        cmp     ecx, [ext2_data.count_pointer_in_block]
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        cmp     ecx, [ext2_data.count_pointer_in_block]         ; 12.. - indirect block
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        jbe     .get_indirect_block
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        jb      .get_indirect_block
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        sub     ecx, [ext2_data.count_pointer_in_block]
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        sub     ecx, [ext2_data.count_pointer_in_block]
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- 
 
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        cmp     ecx, [ext2_data.count_pointer_in_block_square]
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        cmp     ecx, [ext2_data.count_pointer_in_block_square]
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        jb      .get_double_indirect_block
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        jbe     .get_double_indirect_block
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        sub     ecx, [ext2_data.count_pointer_in_block_square]
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    ;.get_triple_indirect_block:
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    ;.get_triple_indirect_block:
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    EXT2_end_block          dd ?   ;конец очередного блока папки
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    EXT2_end_block          dd ?   ;конец очередного блока папки
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    EXT2_counter_blocks     dd ?
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    EXT2_counter_blocks     dd ?
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endg
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endg
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ext2_HdReadFolder:
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        mov     ebp, [ext2_data.root_inode]
 - 
 
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        mov     [EXT2_read_in_folder], ebx
 - 
 
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        mov     [EXT2_files_in_folder], ecx     ;сохраним регистры
 - 
 
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 - 
 
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    .next_folder:
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ext2_HdReadFolder:
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        cmp     byte [esi], 0
 - 
 
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        jz      .get_folder
 - 
 
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 - 
 
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        or      [EXT2_counter_blocks], -1               ;счетчик блоков папки    cur block of inode
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        mov     eax, [ebp + EXT2_INODE_STRUC.i_blocks]  ;убывающий счетчик блоков
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        add     eax, [ext2_data.count_block_in_block]
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        mov     [EXT2_end_block], eax
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    .next_block_folder:
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        mov     eax, [ext2_data.count_block_in_block]
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        sub     [EXT2_end_block], eax
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        cmp     byte [esi], 0
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        jz      .not_found
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        inc     [EXT2_counter_blocks]
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        mov     ecx, [EXT2_counter_blocks]
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        call    ext2_get_inode_block
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        mov     eax, ecx
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        mov     ebx, [ext2_data.ext2_save_block]        ;ebx = cur dir record
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        call    ext2_get_block
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        mov     eax, esi
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        call    ext2_test_block_by_name
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        cmp     eax, esi                                ;нашли имя?
 - 
 
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        je      .next_block_folder
 - 
 
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 - 
 
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        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR
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        jne     .not_found                                      ;нашли, но это не папка
 - 
 
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        mov     eax, [ebx + EXT2_DIR_STRUC.inode]
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        mov     ebx, [ext2_data.ext2_save_inode]                ;все же папка.
 - 
 
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        call    ext2_get_inode
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        mov     ebp, ebx
 - 
 
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- 
 
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        jz      .doit
- 
 
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- 
 
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        push    ecx ebx
- 
 
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        call    ext2_find_lfn
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        jmp     .next_folder
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        jnc     .doit2
- 
 
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        pop     ebx
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 378 
    .not_found:
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    .not_found:
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        pop     ecx
408 
        or      ebx, -1
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        or      ebx, -1
409 
        mov     eax, ERROR_FILE_NOT_FOUND
 - 
 
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        ret
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     ;--------------------------------------------- final step
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        ; in ebp - pointer to final inode (folder).
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    .get_folder:
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 381 
        mov     eax, ERROR_FILE_NOT_FOUND
- 
 
 382 
        ret
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- 
 
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    .doit:
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 385 
        mov     ebp, [ext2_data.root_inode]
- 
 
 386 
        push    ecx
- 
 
 387 
        jmp     @F
- 
 
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    .doit2:
- 
 
 389 
        pop     ebx
- 
 
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        test    [ebp + EXT2_INODE_STRUC.i_mode], EXT2_S_IFDIR
- 
 
 391 
        jz      .not_found
- 
 
 392 
    @@:
- 
 
 393 
        xor     eax, eax
414 
        push    edx                             ;заголовок будем заполнять в конце (адрес - в стеке) edx
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        mov     edi, edx
- 
 
 395 
        mov     ecx, 32/4
- 
 
 396 
        rep     stosd                           ; fill header zero
- 
 
 397 
        pop     edi                             ; edi = число блоков для чтения
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        push    [EXT2_read_in_folder]           ;сохраненный регистр тоже в стек
 398 
        push    edx ebx
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 399 
 
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        mov     edi, [EXT2_files_in_folder]     ;edi = число блоков для чтения
 400 
     ;--------------------------------------------- final step
418 
        and     [EXT2_read_in_folder], 0
 401 
        and     [EXT2_read_in_folder], 0