-#ifndef _LINUX_MSDOS_FS_H\r
-#define _LINUX_MSDOS_FS_H\r
-\r
-/*\r
- * The MS-DOS filesystem constants/structures\r
- */\r
-#include "byteorder.h"\r
-\r
-#define SECTOR_SIZE 512 /* sector size (bytes) */\r
-#define SECTOR_BITS 9 /* log2(SECTOR_SIZE) */\r
-#define MSDOS_DPB (MSDOS_DPS) /* dir entries per block */\r
-#define MSDOS_DPB_BITS 4 /* log2(MSDOS_DPB) */\r
-#define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry))\r
-#define MSDOS_DPS_BITS 4 /* log2(MSDOS_DPS) */\r
-#if 0\r
-#define CF_LE_W(v) le16_to_cpu(v)\r
-#define CF_LE_L(v) le32_to_cpu(v)\r
-#define CT_LE_W(v) cpu_to_le16(v)\r
-#define CT_LE_L(v) cpu_to_le32(v)\r
-#endif\r
-\r
-#define MSDOS_SUPER_MAGIC 0x4d44 /* MD */\r
-\r
-#define MSDOS_ROOT_INO 1 /* == MINIX_ROOT_INO */\r
-#define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */\r
-\r
-/* directory limit */\r
-#define FAT_MAX_DIR_ENTRIES (65536)\r
-#define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)\r
-\r
-#define ATTR_NONE 0 /* no attribute bits */\r
-#define ATTR_RO 1 /* read-only */\r
-#define ATTR_HIDDEN 2 /* hidden */\r
-#define ATTR_SYS 4 /* system */\r
-#define ATTR_VOLUME 8 /* volume label */\r
-#define ATTR_DIR 16 /* directory */\r
-#define ATTR_ARCH 32 /* archived */\r
-\r
-/* attribute bits that are copied "as is" */\r
-#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)\r
-/* bits that are used by the Windows 95/Windows NT extended FAT */\r
-#define ATTR_EXT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)\r
-\r
-#define CASE_LOWER_BASE 8 /* base is lower case */\r
-#define CASE_LOWER_EXT 16 /* extension is lower case */\r
-\r
-#define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */\r
-#define IS_FREE(n) (!*(n) || *(n) == DELETED_FLAG)\r
-\r
-/* valid file mode bits */\r
-#define MSDOS_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO)\r
-/* Convert attribute bits and a mask to the UNIX mode. */\r
-#define MSDOS_MKMODE(a, m) (m & (a & ATTR_RO ? S_IRUGO|S_IXUGO : S_IRWXUGO))\r
-\r
-#define MSDOS_NAME 11 /* maximum name length */\r
-#define MSDOS_LONGNAME 256 /* maximum name length */\r
-#define MSDOS_SLOTS 21 /* max # of slots for short and long names */\r
-#define MSDOS_DOT ". " /* ".", padded to MSDOS_NAME chars */\r
-#define MSDOS_DOTDOT ".. " /* "..", padded to MSDOS_NAME chars */\r
-\r
-/* media of boot sector */\r
-#define FAT_VALID_MEDIA(x) ((0xF8 <= (x) && (x) <= 0xFF) || (x) == 0xF0)\r
-#define FAT_FIRST_ENT(s, x) ((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : \\r
- MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))\r
-\r
-/* start of data cluster's entry (number of reserved clusters) */\r
-#define FAT_START_ENT 2\r
-\r
-/* maximum number of clusters */\r
-#define MAX_FAT12 0xFF4\r
-#define MAX_FAT16 0xFFF4\r
-#define MAX_FAT32 0x0FFFFFF6\r
-#define MAX_FAT(s) (MSDOS_SB(s)->fat_bits == 32 ? MAX_FAT32 : \\r
- MSDOS_SB(s)->fat_bits == 16 ? MAX_FAT16 : MAX_FAT12)\r
-\r
-/* bad cluster mark */\r
-#define BAD_FAT12 0xFF7\r
-#define BAD_FAT16 0xFFF7\r
-#define BAD_FAT32 0x0FFFFFF7\r
-\r
-/* standard EOF */\r
-#define EOF_FAT12 0xFFF\r
-#define EOF_FAT16 0xFFFF\r
-#define EOF_FAT32 0x0FFFFFFF\r
-\r
-#define FAT_ENT_FREE (0)\r
-#define FAT_ENT_BAD (BAD_FAT32)\r
-#define FAT_ENT_EOF (EOF_FAT32)\r
-\r
-#define FAT_FSINFO_SIG1 0x41615252\r
-#define FAT_FSINFO_SIG2 0x61417272\r
-#define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 \\r
- && le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2)\r
-\r
-/*\r
- * ioctl commands\r
- */\r
-#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])\r
-#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])\r
-/* <linux/videotext.h> has used 0x72 ('r') in collision, so skip a few */\r
-#define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32)\r
-#define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32)\r
-\r
-/*\r
- * vfat shortname flags\r
- */\r
-#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */\r
-#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */\r
-#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */\r
-#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */\r
-#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */\r
-\r
-struct fat_boot_sector {\r
- __u8 ignored[3]; /* Boot strap short or near jump */\r
- __u8 system_id[8]; /* Name - can be used to special case\r
- partition manager volumes */\r
- __u8 sector_size[2]; /* bytes per logical sector */\r
- __u8 sec_per_clus; /* sectors/cluster */\r
- __le16 reserved; /* reserved sectors */\r
- __u8 fats; /* number of FATs */\r
- __u8 dir_entries[2]; /* root directory entries */\r
- __u8 sectors[2]; /* number of sectors */\r
- __u8 media; /* media code */\r
- __le16 fat_length; /* sectors/FAT */\r
- __le16 secs_track; /* sectors per track */\r
- __le16 heads; /* number of heads */\r
- __le32 hidden; /* hidden sectors (unused) */\r
- __le32 total_sect; /* number of sectors (if sectors == 0) */\r
-\r
- /* The following fields are only used by FAT32 */\r
- __le32 fat32_length; /* sectors/FAT */\r
- __le16 flags; /* bit 8: fat mirroring, low 4: active fat */\r
- __u8 version[2]; /* major, minor filesystem version */\r
- __le32 root_cluster; /* first cluster in root directory */\r
- __le16 info_sector; /* filesystem info sector */\r
- __le16 backup_boot; /* backup boot sector */\r
- __le16 reserved2[6]; /* Unused */\r
-};\r
-\r
-struct fat_boot_fsinfo {\r
- __le32 signature1; /* 0x41615252L */\r
- __le32 reserved1[120]; /* Nothing as far as I can tell */\r
- __le32 signature2; /* 0x61417272L */\r
- __le32 free_clusters; /* Free cluster count. -1 if unknown */\r
- __le32 next_cluster; /* Most recently allocated cluster */\r
- __le32 reserved2[4];\r
-};\r
-\r
-struct msdos_dir_entry {\r
- __u8 name[8],ext[3]; /* name and extension */\r
- __u8 attr; /* attribute bits */\r
- __u8 lcase; /* Case for base and extension */\r
- __u8 ctime_cs; /* Creation time, centiseconds (0-199) */\r
- __le16 ctime; /* Creation time */\r
- __le16 cdate; /* Creation date */\r
- __le16 adate; /* Last access date */\r
- __le16 starthi; /* High 16 bits of cluster in FAT32 */\r
- __le16 time,date,start;/* time, date and first cluster */\r
- __le32 size; /* file size (in bytes) */\r
-};\r
-\r
-/* Up to 13 characters of the name */\r
-struct msdos_dir_slot {\r
- __u8 id; /* sequence number for slot */\r
- __u8 name0_4[10]; /* first 5 characters in name */\r
- __u8 attr; /* attribute byte */\r
- __u8 reserved; /* always 0 */\r
- __u8 alias_checksum; /* checksum for 8.3 alias */\r
- __u8 name5_10[12]; /* 6 more characters in name */\r
- __le16 start; /* starting cluster number, 0 in long slots */\r
- __u8 name11_12[4]; /* last 2 characters in name */\r
-};\r
-\r
-struct fat_slot_info {\r
- loff_t i_pos; /* on-disk position of directory entry */\r
- loff_t slot_off; /* offset for slot or de start */\r
- int nr_slots; /* number of slots + 1(de) in filename */\r
- struct msdos_dir_entry *de;\r
- struct buffer_head *bh;\r
-};\r
-\r
-#endif\r
+#ifndef _LINUX_MSDOS_FS_H
+#define _LINUX_MSDOS_FS_H
+
+/*
+ * The MS-DOS filesystem constants/structures
+ */
+#include "byteorder.h"
+
+#define SECTOR_SIZE 512 /* sector size (bytes) */
+#define SECTOR_BITS 9 /* log2(SECTOR_SIZE) */
+#define MSDOS_DPB (MSDOS_DPS) /* dir entries per block */
+#define MSDOS_DPB_BITS 4 /* log2(MSDOS_DPB) */
+#define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry))
+#define MSDOS_DPS_BITS 4 /* log2(MSDOS_DPS) */
+#if 0
+#define CF_LE_W(v) le16_to_cpu(v)
+#define CF_LE_L(v) le32_to_cpu(v)
+#define CT_LE_W(v) cpu_to_le16(v)
+#define CT_LE_L(v) cpu_to_le32(v)
+#endif
+
+#define MSDOS_SUPER_MAGIC 0x4d44 /* MD */
+
+#define MSDOS_ROOT_INO 1 /* == MINIX_ROOT_INO */
+#define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */
+
+/* directory limit */
+#define FAT_MAX_DIR_ENTRIES (65536)
+#define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)
+
+#define ATTR_NONE 0 /* no attribute bits */
+#define ATTR_RO 1 /* read-only */
+#define ATTR_HIDDEN 2 /* hidden */
+#define ATTR_SYS 4 /* system */
+#define ATTR_VOLUME 8 /* volume label */
+#define ATTR_DIR 16 /* directory */
+#define ATTR_ARCH 32 /* archived */
+
+/* attribute bits that are copied "as is" */
+#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)
+/* bits that are used by the Windows 95/Windows NT extended FAT */
+#define ATTR_EXT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
+
+#define CASE_LOWER_BASE 8 /* base is lower case */
+#define CASE_LOWER_EXT 16 /* extension is lower case */
+
+#define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */
+#define IS_FREE(n) (!*(n) || *(n) == DELETED_FLAG)
+
+/* valid file mode bits */
+#define MSDOS_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO)
+/* Convert attribute bits and a mask to the UNIX mode. */
+#define MSDOS_MKMODE(a, m) (m & (a & ATTR_RO ? S_IRUGO|S_IXUGO : S_IRWXUGO))
+
+#define MSDOS_NAME 11 /* maximum name length */
+#define MSDOS_LONGNAME 256 /* maximum name length */
+#define MSDOS_SLOTS 21 /* max # of slots for short and long names */
+#define MSDOS_DOT ". " /* ".", padded to MSDOS_NAME chars */
+#define MSDOS_DOTDOT ".. " /* "..", padded to MSDOS_NAME chars */
+
+/* media of boot sector */
+#define FAT_VALID_MEDIA(x) ((0xF8 <= (x) && (x) <= 0xFF) || (x) == 0xF0)
+#define FAT_FIRST_ENT(s, x) ((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : \
+ MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))
+
+/* start of data cluster's entry (number of reserved clusters) */
+#define FAT_START_ENT 2
+
+/* maximum number of clusters */
+#define MAX_FAT12 0xFF4
+#define MAX_FAT16 0xFFF4
+#define MAX_FAT32 0x0FFFFFF6
+#define MAX_FAT(s) (MSDOS_SB(s)->fat_bits == 32 ? MAX_FAT32 : \
+ MSDOS_SB(s)->fat_bits == 16 ? MAX_FAT16 : MAX_FAT12)
+
+/* bad cluster mark */
+#define BAD_FAT12 0xFF7
+#define BAD_FAT16 0xFFF7
+#define BAD_FAT32 0x0FFFFFF7
+
+/* standard EOF */
+#define EOF_FAT12 0xFFF
+#define EOF_FAT16 0xFFFF
+#define EOF_FAT32 0x0FFFFFFF
+
+#define FAT_ENT_FREE (0)
+#define FAT_ENT_BAD (BAD_FAT32)
+#define FAT_ENT_EOF (EOF_FAT32)
+
+#define FAT_FSINFO_SIG1 0x41615252
+#define FAT_FSINFO_SIG2 0x61417272
+#define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 \
+ && le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2)
+
+/*
+ * ioctl commands
+ */
+#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
+#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
+/* <linux/videotext.h> has used 0x72 ('r') in collision, so skip a few */
+#define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32)
+#define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32)
+
+/*
+ * vfat shortname flags
+ */
+#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */
+#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */
+#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */
+#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */
+#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */
+
+struct fat_boot_sector {
+ __u8 ignored[3]; /* Boot strap short or near jump */
+ __u8 system_id[8]; /* Name - can be used to special case
+ partition manager volumes */
+ __u8 sector_size[2]; /* bytes per logical sector */
+ __u8 sec_per_clus; /* sectors/cluster */
+ __le16 reserved; /* reserved sectors */
+ __u8 fats; /* number of FATs */
+ __u8 dir_entries[2]; /* root directory entries */
+ __u8 sectors[2]; /* number of sectors */
+ __u8 media; /* media code */
+ __le16 fat_length; /* sectors/FAT */
+ __le16 secs_track; /* sectors per track */
+ __le16 heads; /* number of heads */
+ __le32 hidden; /* hidden sectors (unused) */
+ __le32 total_sect; /* number of sectors (if sectors == 0) */
+
+ /* The following fields are only used by FAT32 */
+ __le32 fat32_length; /* sectors/FAT */
+ __le16 flags; /* bit 8: fat mirroring, low 4: active fat */
+ __u8 version[2]; /* major, minor filesystem version */
+ __le32 root_cluster; /* first cluster in root directory */
+ __le16 info_sector; /* filesystem info sector */
+ __le16 backup_boot; /* backup boot sector */
+ __le16 reserved2[6]; /* Unused */
+};
+
+struct fat_boot_fsinfo {
+ __le32 signature1; /* 0x41615252L */
+ __le32 reserved1[120]; /* Nothing as far as I can tell */
+ __le32 signature2; /* 0x61417272L */
+ __le32 free_clusters; /* Free cluster count. -1 if unknown */
+ __le32 next_cluster; /* Most recently allocated cluster */
+ __le32 reserved2[4];
+};
+
+struct msdos_dir_entry {
+ __u8 name[8],ext[3]; /* name and extension */
+ __u8 attr; /* attribute bits */
+ __u8 lcase; /* Case for base and extension */
+ __u8 ctime_cs; /* Creation time, centiseconds (0-199) */
+ __le16 ctime; /* Creation time */
+ __le16 cdate; /* Creation date */
+ __le16 adate; /* Last access date */
+ __le16 starthi; /* High 16 bits of cluster in FAT32 */
+ __le16 time,date,start;/* time, date and first cluster */
+ __le32 size; /* file size (in bytes) */
+};
+
+/* Up to 13 characters of the name */
+struct msdos_dir_slot {
+ __u8 id; /* sequence number for slot */
+ __u8 name0_4[10]; /* first 5 characters in name */
+ __u8 attr; /* attribute byte */
+ __u8 reserved; /* always 0 */
+ __u8 alias_checksum; /* checksum for 8.3 alias */
+ __u8 name5_10[12]; /* 6 more characters in name */
+ __le16 start; /* starting cluster number, 0 in long slots */
+ __u8 name11_12[4]; /* last 2 characters in name */
+};
+
+struct fat_slot_info {
+ loff_t i_pos; /* on-disk position of directory entry */
+ loff_t slot_off; /* offset for slot or de start */
+ int nr_slots; /* number of slots + 1(de) in filename */
+ struct msdos_dir_entry *de;
+ struct buffer_head *bh;
+};
+
+#endif
projects / reactos.git / blobdiff