INT 21 - SFS v1.00 - GET CONFIGURATION INFORMATION
AX = 4404h
BL = drive number (00h = default, 01h = A:, etc)
CX = 001Ah (length of data packet)
DS:DX -> buffer for data packet (see #01536)
Return: CF clear if successful
AX = number of bytes actually transferred
CF set on error
AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)
Program: SFS (Secure FileSystem) is a shareware encrypting disk driver by
Peter C. Gutmann
SeeAlso: AX=4405h"SFS"
Format of SFS data packet:
Offset Size Description (Table 01536)
00h 4 BYTEs signature string "SFS1"
04h WORD SFS unit number (0-based)
06h WORD drive on which the SFS volume is mounted
08h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. sector offset of logical volume from start of physical volume
0 if logical volume = physical volume
0Ch WORD flag: 00h = no disk mounted, 01h = disk mounted
0Eh WORD flag: 00h read/write, 01h read-only
10h WORD quick-unmount hotkey
(high byte = shift state, low = scan code) (see #00006)
12h WORD auto-unmount time in minutes, or 0000h if already expired, or
FFFFh if not set
14h WORD time in minutes remaining before auto-unmount
16h WORD internal driver check code
0000h no error
0001h driver consistency check failed
0002h unit consistency check failed
18h WORD disk access mode
0000h BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly.
0001h IDE(Integrated Drive Electronics) A type of disk drive interface which essentially extends the PCIBM PC's expansion bus all the way to the drive and places the drive controller on the disk drive itself. See also ESDI. direct access
0002h SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. direct access