#ifndef __LINUX_UDF_SB_H
#define __LINUX_UDF_SB_H
+#include <linux/mutex.h>
+
/* Since UDF 2.01 is ISO 13346 based... */
#define UDF_SUPER_MAGIC 0x15013346
-#define UDF_MAX_READ_VERSION 0x0201
+#define UDF_MAX_READ_VERSION 0x0250
#define UDF_MAX_WRITE_VERSION 0x0201
#define UDF_FLAG_USE_EXTENDED_FE 0
#define UDF_FLAG_VARCONV 8
#define UDF_FLAG_NLS_MAP 9
#define UDF_FLAG_UTF8 10
-#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
-#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
+#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
+#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
#define UDF_FLAG_GID_FORGET 13
#define UDF_FLAG_GID_IGNORE 14
+#define UDF_FLAG_UID_SET 15
+#define UDF_FLAG_GID_SET 16
+#define UDF_FLAG_SESSION_SET 17
+#define UDF_FLAG_LASTBLOCK_SET 18
+#define UDF_FLAG_BLOCKSIZE_SET 19
#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
#define UDF_PART_FLAG_REWRITABLE 0x0040
#define UDF_PART_FLAG_OVERWRITABLE 0x0080
+#define UDF_MAX_BLOCK_LOADED 8
+
+#define UDF_TYPE1_MAP15 0x1511U
+#define UDF_VIRTUAL_MAP15 0x1512U
+#define UDF_VIRTUAL_MAP20 0x2012U
+#define UDF_SPARABLE_MAP15 0x1522U
+#define UDF_METADATA_MAP25 0x2511U
+
+#define UDF_INVALID_MODE ((mode_t)-1)
+
+#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
+
+struct udf_meta_data {
+ __u32 s_meta_file_loc;
+ __u32 s_mirror_file_loc;
+ __u32 s_bitmap_file_loc;
+ __u32 s_alloc_unit_size;
+ __u16 s_align_unit_size;
+ __u8 s_dup_md_flag;
+ struct inode *s_metadata_fe;
+ struct inode *s_mirror_fe;
+ struct inode *s_bitmap_fe;
+};
+
+struct udf_sparing_data {
+ __u16 s_packet_len;
+ struct buffer_head *s_spar_map[4];
+};
+
+struct udf_virtual_data {
+ __u32 s_num_entries;
+ __u16 s_start_offset;
+};
+
+struct udf_bitmap {
+ __u32 s_extLength;
+ __u32 s_extPosition;
+ __u16 s_nr_groups;
+ struct buffer_head **s_block_bitmap;
+};
+
+struct udf_part_map {
+ union {
+ struct udf_bitmap *s_bitmap;
+ struct inode *s_table;
+ } s_uspace;
+ union {
+ struct udf_bitmap *s_bitmap;
+ struct inode *s_table;
+ } s_fspace;
+ __u32 s_partition_root;
+ __u32 s_partition_len;
+ __u16 s_partition_type;
+ __u16 s_partition_num;
+ union {
+ struct udf_sparing_data s_sparing;
+ struct udf_virtual_data s_virtual;
+ struct udf_meta_data s_metadata;
+ } s_type_specific;
+ __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
+ __u16 s_volumeseqnum;
+ __u16 s_partition_flags;
+};
+
+#pragma pack()
+
+struct udf_sb_info {
+ struct udf_part_map *s_partmaps;
+ __u8 s_volume_ident[32];
+
+ /* Overall info */
+ __u16 s_partitions;
+ __u16 s_partition;
+
+ /* Sector headers */
+ __s32 s_session;
+ __u32 s_anchor;
+ __u32 s_last_block;
+
+ struct buffer_head *s_lvid_bh;
+
+ /* Default permissions */
+ mode_t s_umask;
+ gid_t s_gid;
+ uid_t s_uid;
+ mode_t s_fmode;
+ mode_t s_dmode;
+
+ /* Root Info */
+ struct timespec s_record_time;
+
+ /* Fileset Info */
+ __u16 s_serial_number;
+
+ /* highest UDF revision we have recorded to this media */
+ __u16 s_udfrev;
+
+ /* Miscellaneous flags */
+ __u32 s_flags;
+
+ /* Encoding info */
+ struct nls_table *s_nls_map;
+
+ /* VAT inode */
+ struct inode *s_vat_inode;
+
+ struct mutex s_alloc_mutex;
+ /* Protected by s_alloc_mutex */
+ unsigned int s_lvid_dirty;
+};
+
static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
{
return sb->s_fs_info;
}
-#define UDF_SB_FREE(X)\
-{\
- if (UDF_SB(X))\
- {\
- kfree(UDF_SB_PARTMAPS(X));\
- UDF_SB_PARTMAPS(X) = NULL;\
- }\
-}
-
-#define UDF_SB_ALLOC_PARTMAPS(X,Y)\
-{\
- UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
- if (UDF_SB_PARTMAPS(X) != NULL)\
- {\
- UDF_SB_NUMPARTS(X) = Y;\
- memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
- }\
- else\
- {\
- UDF_SB_NUMPARTS(X) = 0;\
- udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
- }\
-}
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
-#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
-{\
- int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
- ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
- int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
- if (size <= PAGE_SIZE)\
- UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
- else\
- UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
- if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL)\
- {\
- memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
- UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
- (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
- UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
- }\
- else\
- {\
- udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
- }\
-}
-
-#define UDF_SB_FREE_BITMAP(X,Y,Z)\
-{\
- int i;\
- int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
- int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
- for (i=0; i<nr_groups; i++)\
- {\
- if (UDF_SB_BITMAP(X,Y,Z,i))\
- brelse(UDF_SB_BITMAP(X,Y,Z,i));\
- }\
- if (size <= PAGE_SIZE)\
- kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
- else\
- vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
-}
+int udf_compute_nr_groups(struct super_block *sb, u32 partition);
#define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
#define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
#define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
-#define UDF_UPDATE_UDFREV(X,Y) ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
-
-#define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps )
-#define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
-#define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
-#define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
-#define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
-#define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
-#define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
-#define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
-#define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
-#define UDF_SB_PARTFLAGS(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
-#define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
-#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
-
-#define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident )
-#define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions )
-#define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition )
-#define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session )
-#define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor )
-#define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock )
-#define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh )
-#define UDF_SB_LVID(X) ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
-#define UDF_SB_LVIDIU(X) ( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
-
-#define UDF_SB_UMASK(X) ( UDF_SB(X)->s_umask )
-#define UDF_SB_GID(X) ( UDF_SB(X)->s_gid )
-#define UDF_SB_UID(X) ( UDF_SB(X)->s_uid )
-#define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime )
-#define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum )
-#define UDF_SB_UDFREV(X) ( UDF_SB(X)->s_udfrev )
-#define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags )
-#define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat )
-
-#endif /* __LINUX_UDF_SB_H */
+#endif /* __LINUX_UDF_SB_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff