#define _LINUX_MSDOS_FS_H
#include <linux/magic.h>
+#include <asm/byteorder.h>
/*
* The MS-DOS filesystem constants/structures
*/
-#include <asm/byteorder.h>
#define SECTOR_SIZE 512 /* sector size (bytes) */
#define SECTOR_BITS 9 /* log2(SECTOR_SIZE) */
#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))
#define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 \
&& le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2)
+struct __fat_dirent {
+ long d_ino;
+ __kernel_off_t d_off;
+ unsigned short d_reclen;
+ char d_name[256]; /* We must not include limits.h! */
+};
+
/*
* ioctl commands
*/
-#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2])
-#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2])
+#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct __fat_dirent[2])
+#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_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
__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;
-};
-
#ifdef __KERNEL__
#include <linux/buffer_head.h>
#include <linux/fs.h>
#include <linux/mutex.h>
+/*
+ * 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_mount_options {
uid_t fs_uid;
gid_t fs_gid;
char *iocharset; /* Charset used for filename input/display */
unsigned short shortname; /* flags for shortname display/create rule */
unsigned char name_check; /* r = relaxed, n = normal, s = strict */
+ unsigned short allow_utime;/* permission for setting the [am]time */
unsigned quiet:1, /* set = fake successful chmods and chowns */
showexec:1, /* set = only set x bit for com/exe/bat */
sys_immutable:1, /* set = system files are immutable */
utf8:1, /* Use of UTF-8 character set (Default) */
unicode_xlate:1, /* create escape sequences for unhandled Unicode */
numtail:1, /* Does first alias have a numeric '~1' type tail? */
- atari:1, /* Use Atari GEMDOS variation of MS-DOS fs */
flush:1, /* write things quickly */
nocase:1, /* Does this need case conversion? 0=need case conversion*/
- usefree:1; /* Use free_clusters for FAT32 */
+ usefree:1, /* Use free_clusters for FAT32 */
+ tz_utc:1; /* Filesystem timestamps are in UTC */
};
#define FAT_HASH_BITS 8
struct mutex fat_lock;
unsigned int prev_free; /* previously allocated cluster number */
unsigned int free_clusters; /* -1 if undefined */
+ unsigned int free_clus_valid; /* is free_clusters valid? */
struct fat_mount_options options;
struct nls_table *nls_disk; /* Codepage used on disk */
struct nls_table *nls_io; /* Charset used for input and display */
struct inode vfs_inode;
};
+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;
+};
+
static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb)
{
return sb->s_fs_info;
#endif
}
+/* media of boot sector */
+static inline int fat_valid_media(u8 media)
+{
+ return 0xf8 <= media || media == 0xf0;
+}
+
/* fat/cache.c */
extern void fat_cache_inval_inode(struct inode *inode);
extern int fat_get_cluster(struct inode *inode, int cluster,
extern void fat_fs_panic(struct super_block *s, const char *fmt, ...);
extern void fat_clusters_flush(struct super_block *sb);
extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
-extern int date_dos2unix(unsigned short time, unsigned short date);
-extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date);
+extern int date_dos2unix(unsigned short time, unsigned short date, int tz_utc);
+extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date,
+ int tz_utc);
extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs);
int fat_cache_init(void);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff