Reading Lba HDD sectors!

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Dilshod

Joined: 23 Feb 2005
Posts: 23
Location: Uzbekistan, Tashkent

Dilshod 15 Mar 2005, 11:21

How can I read all the LbaHDD sectors to file, from Windows or Dos?
thanks

15 Mar 2005, 11:21

Dilshod

Joined: 23 Feb 2005
Posts: 23
Location: Uzbekistan, Tashkent

Dilshod 16 Mar 2005, 04:51

Any body knows where can I get
VWIN32_DIOC_DOS_INT25 and VWIN32_DIOC_DOS_DRIVEINFO
constants values,
wich used with 'DeviceIoControl' kernel function?

16 Mar 2005, 04:51

r22

Joined: 27 Dec 2004
Posts: 805

r22 16 Mar 2005, 06:19

All I did was use google and the search strings
"VWIN32_DIOC_DOS_INT25 ="
"VWIN32_DIOC_DOS_DRIVEINFO ="

And I found that their const values are
VWIN32_DIOC_DOS_INT25 = 2
VWIN32_DIOC_DOS_DRIVEINFO = 6

16 Mar 2005, 06:19

Dilshod

Joined: 23 Feb 2005
Posts: 23
Location: Uzbekistan, Tashkent

Dilshod 16 Mar 2005, 06:45

Thanks,
But still not working
(Win98)

Code:

FileName db ''\\.\vwin32',0
Regs:
REAX    dd      0
RECX    dd      0
REDX    dd      0
REBX    dd      0
RESP    dd      0
REBP    dd      0
RESI    dd      0
REDI    dd      0

Main:
 invoke CreateFile,FileName,\
       GENERIC_READ,0,0,0,FILE_FLAG_DELETE_ON_CLOSE,0
 mov    [hDevice],eax
 mov    [REAX],3            ;Disk 3-C
 mov    [REBX],Bts_        ;Buffer
 mov    [RECX],1            ;Sectors Cnt
 mov    [REDX],1            ;From
 invoke DeviceIoControl,\
       [hDevice],VWIN32_DIOC_DOS_INT25,Regs,8*4,Regs,nb,0
 invoke CloseHandle,[hDevice]

16 Mar 2005, 06:45

Dilshod

Joined: 23 Feb 2005
Posts: 23
Location: Uzbekistan, Tashkent

Dilshod 16 Mar 2005, 09:26

All Ok, I found it,

Code:

Regs:
REBX    dd      0
REDX    dd      0
RECX    dd      0
REAX    dd      0
REDI    dd      0
RESI    dd      0
Flags   dd      0

d_str:  
diStartSector   dd      0
diSectors       dw      0
diBuffer        dd      0

Main:
        mov     [diStartSector],1           ;Beg Sect
.Next:
        invoke  CreateFile,FileName,GENERIC_READ,0,0,0,\
                   FILE_FLAG_DELETE_ON_CLOSE,0
        mov     [hDevice],eax
        mov     [diSectors],128     ;Sectors Cnt
        mov     [diBuffer],Bts_      ;Buffer
        mov     [REAX],7305h
        mov     [REBX],d_str
        mov     [RECX],-1
        mov     [REDX],6         ;Disk
        mov     [Flags],1
        invoke  DeviceIoControl,[hDevice],\
              VWIN32_DIOC_DOS_DRIVEINFO,Regs,7*4,Regs,7*4,nb,0
        invoke  CloseHandle,[hDevice]

16 Mar 2005, 09:26

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