WebSVN – Kolibri OS – Diff – /kernel/trunk/fs/part_set.inc

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;                                                              ;;
 ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
 ;; Distributed under terms of the GNU General Public License    ;;
 ;;                                                              ;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-$Revision: 1419 $
+$Revision: 2288 $
 ;*************************************************************
 ;* 13.02.2010 Find all partition and check supported FS
 ;* 12.07.2007 Check all 4 entry of MBR and EMBR
 ;* 29.04.2006 Elimination of hangup after the
 ;*             expiration hd_wait_timeout -  Mario79
 ;* 28.01.2006 find all Fat16/32 partition in all input point
 ;*            to MBR - Mario79
 ;*************************************************************
 uglobal
 align 4
 ;******************************************************
 ; Please do not change this place - variables  in text
 ; Mario79
 ; START place
 ;******************************************************
 PARTITION_START      dd 0x3f
 PARTITION_END        dd 0
 fs_type              db 0       ; 1=NTFS, 2=EXT2/3, 16=FAT16, 32=FAT32
 align 4
 fs_dependent_data_start:
 ; FATxx data
 SECTORS_PER_FAT      dd 0x1f3a
 NUMBER_OF_FATS       dd 0x2
 SECTORS_PER_CLUSTER  dd 0x8
 BYTES_PER_SECTOR     dd 0x200   ; Note: if BPS <> 512 need lots of changes
 ROOT_CLUSTER         dd 2       ; first rootdir cluster
 FAT_START            dd 0       ; start of fat table
 ROOT_START           dd 0       ; start of rootdir (only fat16)
 ROOT_SECTORS         dd 0       ; count of rootdir sectors (only fat16)
 DATA_START           dd 0       ; start of data area (=first cluster 2)
 LAST_CLUSTER         dd 0       ; last availabe cluster
 ADR_FSINFO           dd 0       ; used only by fat32
 fatRESERVED          dd 0x0FFFFFF6
 fatBAD               dd 0x0FFFFFF7
 fatEND               dd 0x0FFFFFF8
 fatMASK              dd 0x0FFFFFFF
 fatStartScan         dd 2
 fs_dependent_data_end:
 file_system_data_size = $ - PARTITION_START
 if file_system_data_size > 96
+ERROR:
-ERROR: sizeof(file system data) too big!
+       sizeof(file system data) too big!
 end if
 virtual at fs_dependent_data_start
 ; NTFS data
 ntfs_data:
 .sectors_per_cluster    dd      ?
 .mft_cluster            dd      ?
 .mftmirr_cluster        dd      ?
 .frs_size               dd      ?       ; FRS size in bytes
 .iab_size               dd      ?       ; IndexAllocationBuffer size in bytes
 .frs_buffer             dd      ?
 .iab_buffer             dd      ?
 .mft_retrieval          dd      ?
 .mft_retrieval_size     dd      ?
 .mft_retrieval_alloc    dd      ?
 .mft_retrieval_end      dd      ?
 .cur_index_size         dd      ?
 .cur_index_buf          dd      ?
 if $ > fs_dependent_data_end
+ERROR:
-ERROR: increase sizeof(fs_dependent_data)!
+       increase sizeof(fs_dependent_data)!
 end if
 end virtual
 virtual at fs_dependent_data_start
 ; EXT2 data
 ext2_data:
     .log_block_size                 dd ?
     .block_size                     dd ?
     .count_block_in_block           dd ?
     .blocks_per_group               dd ?
     .inodes_per_group               dd ?
     .global_desc_table              dd ?
-    .root_inode                     dd ?	; pointer to root inode in memory
+    .root_inode                     dd ?        ; pointer to root inode in memory
     .inode_size                     dd ?
-    .count_pointer_in_block         dd ?	;  block_size / 4
+    .count_pointer_in_block         dd ?        ;  block_size / 4
-    .count_pointer_in_block_square  dd ?	; (block_size / 4)**2
+    .count_pointer_in_block_square  dd ?        ; (block_size / 4)**2
     .ext2_save_block                dd ?    ; ¡«®ª   £«®¡ «ìãî 1 ¯à®æ¥¤ãàã
     .ext2_temp_block                dd ?    ; ¡«®ª ¤«ï ¬¥«ª¨å ¯à®æ¥¤ãà
     .ext2_save_inode                dd ?    ; inode   £«®¡ «ìãî ¯à®æ¥¤ãàã
     .ext2_temp_inode                dd ?    ; inode ¤«ï ¬¥«ª¨å ¯à®æ¥¤ãà
     .sb                             dd ?    ; superblock
     .groups_count                   dd ?
 if $ > fs_dependent_data_end
+ERROR:
-ERROR: increase sizeof(fs_dependent_data)!
+       increase sizeof(fs_dependent_data)!
 end if
 end virtual
 ;***************************************************************************
 ; End place
 ; Mario79
 ;***************************************************************************
 endg
 iglobal
   partition_types:              ; list of fat16/32 partitions
     db    0x04                  ; DOS: fat16 <32M
     db    0x06                  ; DOS: fat16 >32M
     db    0x0b                  ; WIN95: fat32
     db    0x0c                  ; WIN95: fat32, LBA-mapped
     db    0x0e                  ; WIN95: fat16, LBA-mapped
     db    0x14                  ; Hidden DOS: fat16 <32M
     db    0x16                  ; Hidden DOS: fat16 >32M
     db    0x1b                  ; Hidden WIN95: fat32
     db    0x1c                  ; Hidden WIN95: fat32, LBA-mapped
     db    0x1e                  ; Hidden WIN95: fat16, LBA-mapped
     db    0xc4                  ; DRDOS/secured: fat16 <32M
     db    0xc6                  ; DRDOS/secured: fat16 >32M
     db    0xcb                  ; DRDOS/secured: fat32
     db    0xcc                  ; DRDOS/secured: fat32, LBA-mapped
     db    0xce                  ; DRDOS/secured: fat16, LBA-mapped
     db    0xd4                  ; Old Multiuser DOS secured: fat16 <32M
     db    0xd6                  ; Old Multiuser DOS secured: fat16 >32M
     db    0x07                  ; NTFS
     db    0x27                  ; NTFS, hidden
     db    0x83                  ; Linux native file system (ext2fs)
   partition_types_end:
   extended_types:               ; list of extended partitions
     db    0x05                  ; DOS: extended partition
     db    0x0f                  ; WIN95: extended partition, LBA-mapped
     db    0xc5                  ; DRDOS/secured: extended partition
     db    0xd5                  ; Old Multiuser DOS secured: extended partition
   extended_types_end:
 endg
 ; Partition chain used:
 ; MBR <---------------------
 ; |                         |
 ; |-> PARTITION1          |
 ; |-> EXTENDED PARTITION -        ;not need be second partition
 ; |-> PARTITION3
 ; |-> PARTITION4
 set_PARTITION_variables:
 set_FAT32_variables:        ;deprecated
-    and   [problem_partition], 0
+        and     [problem_partition], 0
-    call  reserve_hd1
+        call    reserve_hd1
-    call  reserve_hd_channel
+        call    reserve_hd_channel
-    pushad
+        pushad
-    cmp   dword [hdpos],0
-    je    problem_hd
-    xor   ecx,ecx               ; partition count
-    ;or    edx,-1                ; flag for partition
-    xor   eax,eax               ; address MBR
-    xor   ebp,ebp               ; extended partition start
-new_mbr:
-    test  ebp,ebp               ; is there extended partition? (MBR or EMBR)
-    jnz   extended_already_set  ; yes
-    xchg  ebp,eax               ; no. set it now
-extended_already_set:
-    add   eax,ebp               ; mbr=mbr+0, ext_part=ext_start+relat_start
-    mov   ebx,buffer
-    call  hd_read
-    cmp  [hd_error],0
-    jne  problem_hd
-    cmp   word [ebx+0x1fe],0xaa55 ; is it valid boot sector?
-    jnz   end_partition_chain
-    push  eax                      ; push only one time
-    cmp   dword [ebx+0x1be+0xc],0 ; skip over empty partition
-    jnz    test_primary_partition_0
-    cmp   dword [ebx+0x1be+0xc+16],0
-    jnz    test_primary_partition_1
-    cmp   dword [ebx+0x1be+0xc+16+16],0
-    jnz    test_primary_partition_2
-    cmp   dword [ebx+0x1be+0xc+16+16+16],0
-    jnz    test_primary_partition_3
-    pop   eax
-    jmp   end_partition_chain
-test_primary_partition_0:
-    mov   al,[ebx+0x1be+4]      ; get primary partition type
-    call  scan_partition_types
-    jnz   test_primary_partition_1      ; no. skip over
-    inc   ecx
-    cmp   ecx,[known_part]       ; is it wanted partition?
-    jnz   test_primary_partition_1      ; no
+        cmp     dword [hdpos], 0
+        je      problem_hd
+        xor     ecx, ecx        ; partition count
+    ;or    edx,-1                ; flag for partition
+        xor     eax, eax        ; address MBR
+        xor     ebp, ebp        ; extended partition start
+new_mbr:
+        test    ebp, ebp        ; is there extended partition? (MBR or EMBR)
+        jnz     extended_already_set; yes
+        xchg    ebp, eax        ; no. set it now
+extended_already_set:
+        add     eax, ebp        ; mbr=mbr+0, ext_part=ext_start+relat_start
+        mov     ebx, buffer
+        call    hd_read
+        cmp     [hd_error], 0
+        jne     problem_hd
+        cmp     word [ebx+0x1fe], 0xaa55; is it valid boot sector?
+        jnz     end_partition_chain
+        push    eax                ; push only one time
+        cmp     dword [ebx+0x1be+0xc], 0; skip over empty partition
+        jnz     test_primary_partition_0
+        cmp     dword [ebx+0x1be+0xc+16], 0
+        jnz     test_primary_partition_1
+        cmp     dword [ebx+0x1be+0xc+16+16], 0
+        jnz     test_primary_partition_2
+        cmp     dword [ebx+0x1be+0xc+16+16+16], 0
+        jnz     test_primary_partition_3
+        pop     eax
+        jmp     end_partition_chain
+test_primary_partition_0:
+        mov     al, [ebx+0x1be+4]; get primary partition type
+        call    scan_partition_types
+        jnz     test_primary_partition_1; no. skip over
+        inc     ecx
+        cmp     ecx, [known_part]; is it wanted partition?
+        jnz     test_primary_partition_1; no
         pop     eax
         ;mov     edx, eax                ; start sector
         add     eax, [ebx+0x1be+8]      ; add relative start
         ;mov     [PARTITON_START],edx
         ;push    edx
         mov     edx, [ebx+0x1be+12]     ; length
         ;add     edx, eax                ; add length
         ;dec     edx                     ; PARTITION_END is inclusive
         ;mov     [PARTITION_END], edx    ; note that this can be changed
                                         ; when file system data will be available
         mov     cl, [ebx+0x1be+4]       ; fs_type
         ;mov     [fs_type], dl           ; save for FS recognizer (separate FAT vs NTFS)
         ;pop     edx
         jmp     hd_and_partition_ok
 test_primary_partition_1:
-    mov   al,[ebx+0x1be+4+16]      ; get primary partition type
+        mov     al, [ebx+0x1be+4+16]; get primary partition type
-    call  scan_partition_types
+        call    scan_partition_types
-    jnz   test_primary_partition_2        ; no. skip over
+        jnz     test_primary_partition_2  ; no. skip over
-    inc   ecx
+        inc     ecx
-    cmp   ecx,[known_part]       ; is it wanted partition?
+        cmp     ecx, [known_part]; is it wanted partition?
-    jnz   test_primary_partition_2        ; no
+        jnz     test_primary_partition_2  ; no
         pop     eax
         add     eax, [ebx+0x1be+8+16]
         mov     edx, [ebx+0x1be+12+16]
         mov     cl, [ebx+0x1be+4+16]
         jmp     hd_and_partition_ok
         ;mov     edx, eax
         ;add     edx, [ebx+0x1be+8+16]
         ;push    edx
         ;add     edx, [ebx+0x1be+12+16]
         ;dec     edx
         ;mov     [PARTITION_END], edx
         ;mov     al, [ebx+0x1be+4+16]
         ;mov     [fs_type], dl
         ;pop     edx
 test_primary_partition_2:
-    mov   al,[ebx+0x1be+4+16+16]      ; get primary partition type
+        mov     al, [ebx+0x1be+4+16+16]; get primary partition type
-    call  scan_partition_types
+        call    scan_partition_types
-    jnz   test_primary_partition_3        ; no. skip over
+        jnz     test_primary_partition_3  ; no. skip over
-    inc   ecx
+        inc     ecx
-    cmp   ecx,[known_part]       ; is it wanted partition?
+        cmp     ecx, [known_part]; is it wanted partition?
-    jnz   test_primary_partition_3        ; no
+        jnz     test_primary_partition_3  ; no
         pop     eax
         add     eax, [ebx+0x1be+8+16+16]
         mov     edx, [ebx+0x1be+12+16+16]
         mov     cl, [ebx+0x1be+4+16+16]
         jmp     hd_and_partition_ok
         ;mov     edx, eax
         ;add     edx, [ebx+0x1be+8+16+16]
         ;push    edx
         ;add     edx, [ebx+0x1be+12+16+16]
         ;dec     edx
         ;mov     [PARTITION_END], edx
         ;mov     al, [ebx+0x1be+4+16+16]
         ;mov     [fs_type], dl
         ;pop     edx
 test_primary_partition_3:
-    mov   al,[ebx+0x1be+4+16+16+16]      ; get primary partition type
+        mov     al, [ebx+0x1be+4+16+16+16]; get primary partition type
-    call  scan_partition_types
+        call    scan_partition_types
-    jnz   test_ext_partition_0        ; no. skip over
+        jnz     test_ext_partition_0  ; no. skip over
-    inc   ecx
+        inc     ecx
-    cmp   ecx,[known_part]       ; is it wanted partition?
+        cmp     ecx, [known_part]; is it wanted partition?
-    jnz   test_ext_partition_0  ; no
+        jnz     test_ext_partition_0; no
         pop     eax
         add     eax, [ebx+0x1be+8+16+16+16]
         mov     edx, [ebx+0x1be+12+16+16+16]
         mov     cl, [ebx+0x1be+4+16+16+16]
         jmp     hd_and_partition_ok
         ;mov     edx, eax
         ;add     edx, [ebx+0x1be+8+16+16+16]
         ;push    edx
         ;add     edx, [ebx+0x1be+12+16+16+16]
         ;dec     edx
         ;mov     [PARTITION_END], edx
         ;mov     al, [ebx+0x1be+4+16+16+16]
         ;mov     [fs_type], dl
         ;pop     edx
 test_ext_partition_0:
-    pop   eax               ; ¯à®áâ® ¢ëª¨¤ë¢ ¥¬ ¨§ áâ¥ª
+        pop     eax         ; ¯à®áâ® ¢ëª¨¤ë¢ ¥¬ ¨§ áâ¥ª
-    mov   al,[ebx+0x1be+4]   ; get extended partition type
+        mov     al, [ebx+0x1be+4]; get extended partition type
-    call  scan_extended_types
+        call    scan_extended_types
-    jnz   test_ext_partition_1
+        jnz     test_ext_partition_1
-    mov   eax,[ebx+0x1be+8]     ; add relative start
+        mov     eax, [ebx+0x1be+8]; add relative start
-    test  eax,eax               ; is there extended partition?
+        test    eax, eax        ; is there extended partition?
-    jnz   new_mbr               ; yes. read it
+        jnz     new_mbr         ; yes. read it
 test_ext_partition_1:
-    mov   al,[ebx+0x1be+4+16]   ; get extended partition type
+        mov     al, [ebx+0x1be+4+16]; get extended partition type
-    call  scan_extended_types
+        call    scan_extended_types
-    jnz   test_ext_partition_2
+        jnz     test_ext_partition_2
-    mov   eax,[ebx+0x1be+8+16]  ; add relative start
+        mov     eax, [ebx+0x1be+8+16]; add relative start
-    test  eax,eax               ; is there extended partition?
+        test    eax, eax        ; is there extended partition?
-    jnz   new_mbr               ; yes. read it
+        jnz     new_mbr         ; yes. read it
 test_ext_partition_2:
-    mov   al,[ebx+0x1be+4+16+16]   ; get extended partition type
+        mov     al, [ebx+0x1be+4+16+16]; get extended partition type
-    call  scan_extended_types
+        call    scan_extended_types
-    jnz   test_ext_partition_3
+        jnz     test_ext_partition_3
-    mov   eax,[ebx+0x1be+8+16+16]     ; add relative start
+        mov     eax, [ebx+0x1be+8+16+16]; add relative start
-    test  eax,eax               ; is there extended partition?
+        test    eax, eax        ; is there extended partition?
-    jnz   new_mbr               ; yes. read it
+        jnz     new_mbr         ; yes. read it
 test_ext_partition_3:
-    mov   al,[ebx+0x1be+4+16+16+16]   ; get extended partition type
+        mov     al, [ebx+0x1be+4+16+16+16]; get extended partition type
-    call  scan_extended_types
+        call    scan_extended_types
-    jnz   end_partition_chain   ; no. end chain
+        jnz     end_partition_chain; no. end chain
-    mov   eax,[ebx+0x1be+8+16+16+16]  ; get start of extended partition
+        mov     eax, [ebx+0x1be+8+16+16+16]; get start of extended partition
-    test  eax,eax               ; is there extended partition?
+        test    eax, eax        ; is there extended partition?
-    jnz   new_mbr               ; yes. read it
+        jnz     new_mbr         ; yes. read it
 end_partition_chain:
     ;mov   [partition_count],ecx
     ;cmp   edx,-1                ; found wanted partition?
     ;jnz   hd_and_partition_ok   ; yes. install it
     ;jmp   problem_partition_or_fat
 problem_hd:
-    or    [problem_partition], 2
+        or      [problem_partition], 2
-    jmp   return_from_part_set
+        jmp     return_from_part_set
 scan_partition_types:
-    push  ecx
+        push    ecx
-    mov   edi,partition_types
+        mov     edi, partition_types
-    mov   ecx,partition_types_end-partition_types
+        mov     ecx, partition_types_end-partition_types
-    cld
+        cld
-    repne scasb                 ; is partition type ok?
+        repne scasb             ; is partition type ok?
-    pop   ecx
+        pop     ecx
-    ret
+        ret
 scan_extended_types:
-    push  ecx
+        push    ecx
-    mov   edi,extended_types
+        mov     edi, extended_types
-    mov   ecx,extended_types_end-extended_types
+        mov     ecx, extended_types_end-extended_types
-    cld
+        cld
-    repne scasb                 ; is it extended partition?
+        repne scasb             ; is it extended partition?
-    pop   ecx
+        pop     ecx
-    ret
+        ret
 problem_fat_dec_count:          ; bootsector is missing or another problem
 ;    dec   [partition_count]     ; remove it from partition_count
 problem_partition_or_fat:
-    or    [problem_partition],1
+        or      [problem_partition], 1
 return_from_part_set:
-    popad
+        popad
     ;mov   [fs_type],0
-    call  free_hd_channel
+        call    free_hd_channel
-    mov   [hd1_status],0        ; free
+        mov     [hd1_status], 0 ; free

Subversion Repositories Kolibri OS

(root)/kernel/trunk/fs/part_set.inc – Rev 1419 → 2288