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6ef1af993d
Shared_Includes/structures/FileSystem.inc
Anatoliy Belyanskiy 6ef1af993d ...
2024-03-06 02:47:36 +10:00

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;
//---------------------------------------------------------------------------
STRUCT _sBOOT_SECTOR
PARAMS _sBOOT_SEC
ENDS
STRUCT _sBOOT_SEC ; 62 bytes
JMP BLOCK 3,0 ; +#00 "JMP"
ID_NAME TEXT 8, {"DSS_1.7","0"} ; +#03 DOS NAME - DB "DSS_1.70"
; Block Parameters BIOS
B_P_S WORD #200 ; +#0B BYTE PER SECTOR
S_P_C BYTE 2 ; +#0D SECTORS PER CLUSTER
RESERVE WORD 1 ; +#0E RESERVE SECTORS
FAT_NUM BYTE 2 ; +#10 AMOUNT FATS
F_P_DIR WORD 112 ; +#11 FILES IN DIRECTORY
S_P_D WORD 1440 ; +#13 ALL SECTORS ON DISK
ID_FORM BYTE #F0 ; +#15 ID FORMAT
S_P_F WORD 2 ; +#16 SIZE FAT IN SECTORS
S_P_T WORD 9 ; +#18 SECTOR PER TRACK
HEADS WORD 2 ; +#1A AMOUNT SIDES
HIDDEN DWORD 0 ; +#1C HIDDEN SECTORS
BPB_BIG_TOTAL_SECTORS DWORD 0 ; +#20 BIG TOTAL SECTOR
BPB_PHISICAL_DRIVE_NUMBER WORD #80 ; +#24 PHISICAL DRIVE NUMBER
BPB_EXT_BOOT_RECORD_SIGNATURE BYTE #29 ; +#26 EXTENDED BOOT RECORD SIGNATURE
BPB_SERIAL_NUMBER DWORD 0 ; +#27 VOLUME SERIAL NUMBER
BPB_LABEL TEXT 11, {"NO NAME"," "} ; +#2B DISK LABEL
ID_FAT TEXT 8, {"FAT16"," "} ; +#36 FILE SYSTEM ID (BPB_FS_ID) ;!TODO detect fat type by clusters!
;.BOOT_CODE BLOCK 448,0 ; +#3E boot loader's code
;.MBR_PARTITION_TABLE BLOCK 4*16 ; +#1BE table = 4x16 bytes
;.MBR_SIGNATURE WORD #AA55 ; +#1FE Signature
ENDS
;
STRUCT _sMBR_PARTITION_TABLE, #01BE ; MBR: Offset of partition table in the MBR
Record_1 _sMBR_PARTITION_RECORD ; +#01BE
Record_2 _sMBR_PARTITION_RECORD ; +#01CE
Record_3 _sMBR_PARTITION_RECORD ; +#01DE
Record_4 _sMBR_PARTITION_RECORD ; +#01EE
MBR_SIGNATURE WORD #AA55 ; +#01FE
ENDS
STRUCT _sMBR_PARTITION_RECORD
isActive BYTE 0 ; +#00
Start_head BYTE 0 ; +#01
Start_sector BYTE 0 ; +#02
Start_cylinder BYTE 0 ; +#03
FS_ID BYTE 0 ; +#04
End_head BYTE 0 ; +#05
End_sector BYTE 0 ; +#06
End_cylinder BYTE 0 ; +#07
Start_LBA DWORD 0 ; +#08
Size_LBA DWORD 0 ; +#0C
ENDS
//---------------------------------------------------------------------------
;
//---------------------------------------------------------------------------
PartitionSysTypes:
.Empty EQU #00
.FAT12 EQU #01
.FAT16_32Mb EQU #04
.Extended EQU #05
.FAT16 EQU #06
.HPFS_NTFS EQU #07
.FAT32 EQU #0B
.FAT32_LBA EQU #0C
.FAT16_LBA EQU #0E
.Win_Ext_LBA EQU #0F
.Linux_swap EQU #82
.Linux EQU #83
.Linux_extended EQU #85
//---------------------------------------------------------------------------
;
//---------------------------------------------------------------------------
; * DOS partition types
; *
; * Taken from fdisk/i386_sys_types.c and fdisk/common.h of
; * util-linux 2.11n (as packaged by Debian), Feb 08, 2003.
; *
; * Part of the info is also taken from PartInfo tool from PartitionMagic 8
; const system_identifier_t system_identifiers[] =
; {
; {0x00, "Empty"},
; {0x01, "FAT12"},
; {0x02, "XENIX root"},
; {0x03, "XENIX usr"},
; {0x04, "FAT16 <32MB"},
; {0x05, "Extended"},
; {0x06, "FAT16B (>= 32 MB)"},
; {0x07, "Installable File System (NTFS, HPFS)"},
; {0x08, "AIX"},
; {0x09, "AIX bootable"},
; {0x0A, "OS/2 Boot Manager"},
; {0x0B, "Win95 FAT32"},
; {0x0C, "Win95 FAT32 (LBA)"},
; {0x0E, "Win95 FAT16 (LBA)"},
; {0x0F, "Win95 Extended (LBA)"},
; {0x10, "OPUS"},
; {0x11, "Hidden FAT12"},
; {0x12, "Compaq diagnostics"},
; {0x14, "Hidden FAT16 <32MB"},
; {0x16, "Hidden FAT16"},
; {0x17, "Hidden IFS (HPFS/NTFS)"},
; {0x18, "AST SmartSleep"},
; {0x1B, "Hidden Win95 FAT32"},
; {0x1C, "Hidden Win95 FAT32 (LBA)"},
; {0x1E, "Hidden Win95 FAT16 (LBA)"},
; {0x24, "NEC DOS"},
; {0x2C, "WildFile/Adaptec GOBack"},
; {0x39, "Plan 9"},
; {0x3C, "PowerQuest Recoverable Partition"},
; {0x40, "Venix 80286"},
; {0x41, "PPC PReP Boot"},
; {0x42, "Veritas Logical Disk Manager"},
; {0x4d, "QNX4.x"},
; {0x4e, "QNX4.x 2nd part"},
; {0x4f, "QNX4.x 3rd part"},
; {0x50, "OnTrack DM"},
; {0x51, "OnTrack DM6 Aux1"},
; {0x52, "CP/M"},
; {0x53, "OnTrack DM6 Aux3"},
; {0x54, "OnTrackDM6"},
; {0x55, "EZ-Drive"},
; {0x56, "Golden Bow"},
; {0x5c, "Priam Edisk"},
; {0x61, "SpeedStor"},
; {0x63, "GNU HURD or SysV"},
; {0x64, "Novell Netware 286"},
; {0x65, "Novell Netware (3.11 and 4.1)"},
; {0x66, "Novell Netware 386"},
; {0x70, "DiskSecure Multi-Boot"},
; {0x75, "PC/IX"},
; {0x78, "XOSL"},
; {0x80, "Old Minix"},
; {0x81, "Linux/Minix v1.4b+"},
; {0x82, "Linux swap / Solaris"},
; {0x83, "Linux native file system (Ext2/3)"},
; {0x84, "OS/2 hiding type 04h partition"},
; {0x85, "Linux extended"},
; {0x86, "NT FAT volume set"},
; {0x87, "NT IFS volume set"},
; {0x8e, "Linux LVM"},
; {0x93, "Amoeba/Hidden Linux native file system (Ext2/3)"},
; {0x94, "Amoeba BBT"},
; {0x9f, "BSD/OS"},
; {0xA0, "IBM Thinkpad hibernation"},
; {0xA5, "FreeBSD"},
; {0xA6, "OpenBSD"},
; {0xA7, "NeXTSTEP"},
; {0xA9, "NetBSD"},
; {0xB7, "BSDI fs"},
; {0xb8, "BSDI swap"},
; {0xbb, "Boot Wizard hidden"},
; {0xc1, "DRDOS / sec (FAT-12)"},
; {0xc4, "DRDOS / sec (FAT-16 < 32M)"},
; {0xc6, "Disabled NT FAT (FAT-16) volume set/DRDOS"},
; {0xc7, "Syrinx / Disabled NT IFS volume set"},
; {0xda, "Non-FS data"},
; {0xdb, "CP/M / CTOS / ..."},
; {0xde, "Dell Corporation diagnostic partition"},
; {0xdf, "BootIt"},
; {0xe1, "DOS access"},
; {0xe3, "DOS R/O"},
; {0xe4, "SpeedStor"},
; {0xeb, "BeOS fs"},
; {0xee, "EFI GPT"},
; {0xef, "EFI (FAT-12/16/32)"},
; {0xf0, "Linux/PA-RISC boot"},
; {0xf1, "SpeedStor"},
; {0xf4, "SpeedStor"},
; {0xf2, "DOS secondary"},
; {0xfd, "Linux raid autodetect"},
; {0xfe, "LANstep"},
; {0xff, "Bad Track Table"},
; {0, 0} // End-Of-Table
; };
; Limits and boundaries
; MAX_DIR 0x200000 ; Max size of FAT directory
; MAX_DIR_EX 0x10000000 ; Max size of exFAT directory
; MAX_FAT12 0xFF5 ; Max FAT12 clusters (differs from specs, but right for real DOS/Windows behavior)
; MAX_FAT16 0xFFF5 ; Max FAT16 clusters (differs from specs, but right for real DOS/Windows behavior)
; MAX_FAT32 0x0FFFFFF5 ; Max FAT32 clusters (not specified, practical limit)
; MAX_EXFAT 0x7FFFFFFD ; Max exFAT clusters (differs from specs, implementation limit)
; Character code support macros
; IsUpper(c) ((c) >= 'A' && (c) <= 'Z')
; IsLower(c) ((c) >= 'a' && (c) <= 'z')
; IsDigit(c) ((c) >= '0' && (c) <= '9')
; IsSeparator(c) ((c) == '/' || (c) == '\\')
; IsTerminator(c) ((UINT)(c) < (FF_USE_LFN ? ' ' : '!'))
; IsSurrogate(c) ((c) >= 0xD800 && (c) <= 0xDFFF)
; IsSurrogateH(c) ((c) >= 0xD800 && (c) <= 0xDBFF)
; IsSurrogateL(c) ((c) >= 0xDC00 && (c) <= 0xDFFF)
; Additional file access control and file status flags for internal use
; FA_SEEKEND 0x20 ; Seek to end of the file on file open
; FA_MODIFIED 0x40 ; File has been modified
; FA_DIRTY 0x80 ; FIL.buf[] needs to be written-back
; Additional file attribute bits for internal use
; AM_VOL 0x08 ; Volume label
; AM_LFN 0x0F ; LFN entry
; AM_MASK 0x3F ; Mask of defined bits in FAT
; AM_MASKX 0x37 ; Mask of defined bits in exFAT
; Name status flags in fn[11]
; NSFLAG 11 ; Index of the name status byte
; NS_LOSS 0x01 ; Out of 8.3 format
; NS_LFN 0x02 ; Force to create LFN entry
; NS_LAST 0x04 ; Last segment
; NS_BODY 0x08 ; Lower case flag (body)
; NS_EXT 0x10 ; Lower case flag (ext)
; NS_DOT 0x20 ; Dot entry
; NS_NOLFN 0x40 ; Do not find LFN
; NS_NONAME 0x80 ; Not followed
; exFAT directory entry types
; ET_BITMAP 0x81 ; Allocation bitmap
; ET_UPCASE 0x82 ; Up-case table
; ET_VLABEL 0x83 ; Volume label
; ET_FILEDIR 0x85 ; File and directory
; ET_STREAM 0xC0 ; Stream extension
; ET_FILENAME 0xC1 ; Name extension
; FatFs refers the FAT structure as simple byte array instead of structure member
; because the C structure is not binary compatible between different platforms
; BS_JmpBoot 0 ; x86 jump instruction (3-byte)
; BS_OEMName 3 ; OEM name (8-byte)
; BPB_BytsPerSec 11 ; Sector size [byte] (WORD)
; BPB_SecPerClus 13 ; Cluster size [sector] (BYTE)
; BPB_RsvdSecCnt 14 ; Size of reserved area [sector] (WORD)
; BPB_NumFATs 16 ; Number of FATs (BYTE)
; BPB_RootEntCnt 17 ; Size of root directory area for FAT [entry] (WORD)
; BPB_TotSec16 19 ; Volume size (16-bit) [sector] (WORD)
; BPB_Media 21 ; Media descriptor byte (BYTE)
; BPB_FATSz16 22 ; FAT size (16-bit) [sector] (WORD)
; BPB_SecPerTrk 24 ; Number of sectors per track for int13h [sector] (WORD)
; BPB_NumHeads 26 ; Number of heads for int13h (WORD)
; BPB_HiddSec 28 ; Volume offset from top of the drive (DWORD)
; BPB_TotSec32 32 ; Volume size (32-bit) [sector] (DWORD)
; BS_DrvNum 36 ; Physical drive number for int13h (BYTE)
; BS_NTres 37 ; WindowsNT error flag (BYTE)
; BS_BootSig 38 ; Extended boot signature (BYTE)
; BS_VolID 39 ; Volume serial number (DWORD)
; BS_VolLab 43 ; Volume label string (8-byte)
; BS_FilSysType 54 ; Filesystem type string (8-byte)
; BS_BootCode 62 ; Boot code (448-byte)
; BS_55AA 510 ; Signature word (WORD)
; BPB_FATSz32 36 ; FAT32: FAT size [sector] (DWORD)
; BPB_ExtFlags32 40 ; FAT32: Extended flags (WORD)
; BPB_FSVer32 42 ; FAT32: Filesystem version (WORD)
; BPB_RootClus32 44 ; FAT32: Root directory cluster (DWORD)
; BPB_FSInfo32 48 ; FAT32: Offset of FSINFO sector (WORD)
; BPB_BkBootSec32 50 ; FAT32: Offset of backup boot sector (WORD)
; BS_DrvNum32 64 ; FAT32: Physical drive number for int13h (BYTE)
; BS_NTres32 65 ; FAT32: Error flag (BYTE)
; BS_BootSig32 66 ; FAT32: Extended boot signature (BYTE)
; BS_VolID32 67 ; FAT32: Volume serial number (DWORD)
; BS_VolLab32 71 ; FAT32: Volume label string (8-byte)
; BS_FilSysType32 82 ; FAT32: Filesystem type string (8-byte)
; BS_BootCode32 90 ; FAT32: Boot code (420-byte)
; BPB_ZeroedEx 11 ; exFAT: MBZ field (53-byte)
; BPB_VolOfsEx 64 ; exFAT: Volume offset from top of the drive [sector] (QWORD)
; BPB_TotSecEx 72 ; exFAT: Volume size [sector] (QWORD)
; BPB_FatOfsEx 80 ; exFAT: FAT offset from top of the volume [sector] (DWORD)
; BPB_FatSzEx 84 ; exFAT: FAT size [sector] (DWORD)
; BPB_DataOfsEx 88 ; exFAT: Data offset from top of the volume [sector] (DWORD)
; BPB_NumClusEx 92 ; exFAT: Number of clusters (DWORD)
; BPB_RootClusEx 96 ; exFAT: Root directory start cluster (DWORD)
; BPB_VolIDEx 100 ; exFAT: Volume serial number (DWORD)
; BPB_FSVerEx 104 ; exFAT: Filesystem version (WORD)
; BPB_VolFlagEx 106 ; exFAT: Volume flags (WORD)
; BPB_BytsPerSecEx 108 ; exFAT: Log2 of sector size in unit of byte (BYTE)
; BPB_SecPerClusEx 109 ; exFAT: Log2 of cluster size in unit of sector (BYTE)
; BPB_NumFATsEx 110 ; exFAT: Number of FATs (BYTE)
; BPB_DrvNumEx 111 ; exFAT: Physical drive number for int13h (BYTE)
; BPB_PercInUseEx 112 ; exFAT: Percent in use (BYTE)
; BPB_RsvdEx 113 ; exFAT: Reserved (7-byte)
; BS_BootCodeEx 120 ; exFAT: Boot code (390-byte)
; DIR_Name 0 ; Short file name (11-byte)
; DIR_Attr 11 ; Attribute (BYTE)
; DIR_NTres 12 ; Lower case flag (BYTE)
; DIR_CrtTime10 13 ; Created time sub-second (BYTE)
; DIR_CrtTime 14 ; Created time (DWORD)
; DIR_LstAccDate 18 ; Last accessed date (WORD)
; DIR_FstClusHI 20 ; Higher 16-bit of first cluster (WORD)
; DIR_ModTime 22 ; Modified time (DWORD)
; DIR_FstClusLO 26 ; Lower 16-bit of first cluster (WORD)
; DIR_FileSize 28 ; File size (DWORD)
; LDIR_Ord 0 ; LFN: LFN order and LLE flag (BYTE)
; LDIR_Attr 11 ; LFN: LFN attribute (BYTE)
; LDIR_Type 12 ; LFN: Entry type (BYTE)
; LDIR_Chksum 13 ; LFN: Checksum of the SFN (BYTE)
; LDIR_FstClusLO 26 ; LFN: MBZ field (WORD)
; XDIR_Type 0 ; exFAT: Type of exFAT directory entry (BYTE)
; XDIR_NumLabel 1 ; exFAT: Number of volume label characters (BYTE)
; XDIR_Label 2 ; exFAT: Volume label (11-WORD)
; XDIR_CaseSum 4 ; exFAT: Sum of case conversion table (DWORD)
; XDIR_NumSec 1 ; exFAT: Number of secondary entries (BYTE)
; XDIR_SetSum 2 ; exFAT: Sum of the set of directory entries (WORD)
; XDIR_Attr 4 ; exFAT: File attribute (WORD)
; XDIR_CrtTime 8 ; exFAT: Created time (DWORD)
; XDIR_ModTime 12 ; exFAT: Modified time (DWORD)
; XDIR_AccTime 16 ; exFAT: Last accessed time (DWORD)
; XDIR_CrtTime10 20 ; exFAT: Created time subsecond (BYTE)
; XDIR_ModTime10 21 ; exFAT: Modified time subsecond (BYTE)
; XDIR_CrtTZ 22 ; exFAT: Created timezone (BYTE)
; XDIR_ModTZ 23 ; exFAT: Modified timezone (BYTE)
; XDIR_AccTZ 24 ; exFAT: Last accessed timezone (BYTE)
; XDIR_GenFlags 33 ; exFAT: General secondary flags (BYTE)
; XDIR_NumName 35 ; exFAT: Number of file name characters (BYTE)
; XDIR_NameHash 36 ; exFAT: Hash of file name (WORD)
; XDIR_ValidFileSize 40 ; exFAT: Valid file size (QWORD)
; XDIR_FstClus 52 ; exFAT: First cluster of the file data (DWORD)
; XDIR_FileSize 56 ; exFAT: File/Directory size (QWORD)
; SZDIRE 32 ; Size of a directory entry
; DDEM 0xE5 ; Deleted directory entry mark set to DIR_Name[0]
; RDDEM 0x05 ; Replacement of the character collides with DDEM
; LLEF 0x40 ; Last long entry flag in LDIR_Ord
; FSI_LeadSig 0 ; FAT32 FSI: Leading signature (DWORD)
; FSI_StrucSig 484 ; FAT32 FSI: Structure signature (DWORD)
; FSI_Free_Count 488 ; FAT32 FSI: Number of free clusters (DWORD)
; FSI_Nxt_Free 492 ; FAT32 FSI: Last allocated cluster (DWORD)
; GPTH_Sign 0 ; GPT: Header signature (8-byte)
; GPTH_Rev 8 ; GPT: Revision (DWORD)
; GPTH_Size 12 ; GPT: Header size (DWORD)
; GPTH_Bcc 16 ; GPT: Header BCC (DWORD)
; GPTH_CurLba 24 ; GPT: Main header LBA (QWORD)
; GPTH_BakLba 32 ; GPT: Backup header LBA (QWORD)
; GPTH_FstLba 40 ; GPT: First LBA for partitions (QWORD)
; GPTH_LstLba 48 ; GPT: Last LBA for partitions (QWORD)
; GPTH_DskGuid 56 ; GPT: Disk GUID (16-byte)
; GPTH_PtOfs 72 ; GPT: Partation table LBA (QWORD)
; GPTH_PtNum 80 ; GPT: Number of table entries (DWORD)
; GPTH_PteSize 84 ; GPT: Size of table entry (DWORD)
; GPTH_PtBcc 88 ; GPT: Partation table BCC (DWORD)
; SZ_GPTE 128 ; GPT: Size of partition table entry
; GPTE_PtGuid 0 ; GPT PTE: Partition type GUID (16-byte)
; GPTE_UpGuid 16 ; GPT PTE: Partition unique GUID (16-byte)
; GPTE_FstLba 32 ; GPT PTE: First LBA (QWORD)
; GPTE_LstLba 40 ; GPT PTE: Last LBA inclusive (QWORD)
; GPTE_Flags 48 ; GPT PTE: Flags (QWORD)
; GPTE_Name 56 ; GPT PTE: Name
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