1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
21da177e4SLinus Torvalds #ifndef __LINUX_UDF_SB_H
31da177e4SLinus Torvalds #define __LINUX_UDF_SB_H
41da177e4SLinus Torvalds
515aebd28SChristoph Hellwig #include <linux/mutex.h>
6f2a6cc1fSJan Kara #include <linux/bitops.h>
72a28900bSJan Kara #include <linux/magic.h>
81da177e4SLinus Torvalds
97868f930SBartosz Taudul /*
107868f930SBartosz Taudul * Even UDF 2.6 media should have version <= 0x250 but apparently there are
117868f930SBartosz Taudul * some broken filesystems with version set to 0x260. Accommodate those.
127868f930SBartosz Taudul */
137868f930SBartosz Taudul #define UDF_MAX_READ_VERSION 0x0260
141da177e4SLinus Torvalds #define UDF_MAX_WRITE_VERSION 0x0201
151da177e4SLinus Torvalds
161da177e4SLinus Torvalds #define UDF_FLAG_USE_EXTENDED_FE 0
171da177e4SLinus Torvalds #define UDF_VERS_USE_EXTENDED_FE 0x0200
181da177e4SLinus Torvalds #define UDF_FLAG_USE_STREAMS 1
191da177e4SLinus Torvalds #define UDF_VERS_USE_STREAMS 0x0200
201da177e4SLinus Torvalds #define UDF_FLAG_USE_SHORT_AD 2
211da177e4SLinus Torvalds #define UDF_FLAG_USE_AD_IN_ICB 3
221da177e4SLinus Torvalds #define UDF_FLAG_USE_FILE_CTIME_EA 4
231da177e4SLinus Torvalds #define UDF_FLAG_STRICT 5
241da177e4SLinus Torvalds #define UDF_FLAG_UNDELETE 6
251da177e4SLinus Torvalds #define UDF_FLAG_UNHIDE 7
264d6660ebSPhillip Susi #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
2770260e44SJan Kara #define UDF_FLAG_GID_FORGET 12
2870260e44SJan Kara #define UDF_FLAG_UID_SET 13
2970260e44SJan Kara #define UDF_FLAG_GID_SET 14
3070260e44SJan Kara #define UDF_FLAG_SESSION_SET 15
3170260e44SJan Kara #define UDF_FLAG_LASTBLOCK_SET 16
3270260e44SJan Kara #define UDF_FLAG_BLOCKSIZE_SET 17
33b72e632cSJan Kara #define UDF_FLAG_INCONSISTENT 18
34a9ad01bcSJan Kara #define UDF_FLAG_RW_INCOMPAT 19 /* Set when we find RW incompatible
35a9ad01bcSJan Kara * feature */
361da177e4SLinus Torvalds
371da177e4SLinus Torvalds #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
381da177e4SLinus Torvalds #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
391da177e4SLinus Torvalds #define UDF_PART_FLAG_READ_ONLY 0x0010
401da177e4SLinus Torvalds #define UDF_PART_FLAG_WRITE_ONCE 0x0020
411da177e4SLinus Torvalds #define UDF_PART_FLAG_REWRITABLE 0x0040
421da177e4SLinus Torvalds #define UDF_PART_FLAG_OVERWRITABLE 0x0080
431da177e4SLinus Torvalds
4415aebd28SChristoph Hellwig #define UDF_MAX_BLOCK_LOADED 8
4515aebd28SChristoph Hellwig
4615aebd28SChristoph Hellwig #define UDF_TYPE1_MAP15 0x1511U
4715aebd28SChristoph Hellwig #define UDF_VIRTUAL_MAP15 0x1512U
4815aebd28SChristoph Hellwig #define UDF_VIRTUAL_MAP20 0x2012U
4915aebd28SChristoph Hellwig #define UDF_SPARABLE_MAP15 0x1522U
50bfb257a5SJan Kara #define UDF_METADATA_MAP25 0x2511U
5115aebd28SChristoph Hellwig
52faa17292SAl Viro #define UDF_INVALID_MODE ((umode_t)-1)
5387bc730cSMarcin Slusarz
54ed47a7d0SJan Kara #define MF_DUPLICATE_MD 0x01
55ed47a7d0SJan Kara #define MF_MIRROR_FE_LOADED 0x02
56ed47a7d0SJan Kara
57*3d2d7e61SJan Kara #define EFSCORRUPTED EUCLEAN
58*3d2d7e61SJan Kara
59bfb257a5SJan Kara struct udf_meta_data {
60bfb257a5SJan Kara __u32 s_meta_file_loc;
61bfb257a5SJan Kara __u32 s_mirror_file_loc;
62bfb257a5SJan Kara __u32 s_bitmap_file_loc;
63bfb257a5SJan Kara __u32 s_alloc_unit_size;
64bfb257a5SJan Kara __u16 s_align_unit_size;
657888824bSAlden Tondettar /*
667888824bSAlden Tondettar * Partition Reference Number of the associated physical / sparable
677888824bSAlden Tondettar * partition
687888824bSAlden Tondettar */
697888824bSAlden Tondettar __u16 s_phys_partition_ref;
70ed47a7d0SJan Kara int s_flags;
71bfb257a5SJan Kara struct inode *s_metadata_fe;
72bfb257a5SJan Kara struct inode *s_mirror_fe;
73bfb257a5SJan Kara struct inode *s_bitmap_fe;
74bfb257a5SJan Kara };
75bfb257a5SJan Kara
7615aebd28SChristoph Hellwig struct udf_sparing_data {
7715aebd28SChristoph Hellwig __u16 s_packet_len;
7815aebd28SChristoph Hellwig struct buffer_head *s_spar_map[4];
7915aebd28SChristoph Hellwig };
8015aebd28SChristoph Hellwig
8115aebd28SChristoph Hellwig struct udf_virtual_data {
8215aebd28SChristoph Hellwig __u32 s_num_entries;
8315aebd28SChristoph Hellwig __u16 s_start_offset;
8415aebd28SChristoph Hellwig };
8515aebd28SChristoph Hellwig
8615aebd28SChristoph Hellwig struct udf_bitmap {
8715aebd28SChristoph Hellwig __u32 s_extPosition;
8889b1f39eSJan Kara int s_nr_groups;
893fc13166SGustavo A. R. Silva struct buffer_head *s_block_bitmap[];
9015aebd28SChristoph Hellwig };
9115aebd28SChristoph Hellwig
9215aebd28SChristoph Hellwig struct udf_part_map {
9315aebd28SChristoph Hellwig union {
9415aebd28SChristoph Hellwig struct udf_bitmap *s_bitmap;
9515aebd28SChristoph Hellwig struct inode *s_table;
9615aebd28SChristoph Hellwig } s_uspace;
9715aebd28SChristoph Hellwig __u32 s_partition_root;
9815aebd28SChristoph Hellwig __u32 s_partition_len;
9915aebd28SChristoph Hellwig __u16 s_partition_type;
10015aebd28SChristoph Hellwig __u16 s_partition_num;
10115aebd28SChristoph Hellwig union {
10215aebd28SChristoph Hellwig struct udf_sparing_data s_sparing;
10315aebd28SChristoph Hellwig struct udf_virtual_data s_virtual;
104bfb257a5SJan Kara struct udf_meta_data s_metadata;
10515aebd28SChristoph Hellwig } s_type_specific;
10615aebd28SChristoph Hellwig __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
10715aebd28SChristoph Hellwig __u16 s_volumeseqnum;
10815aebd28SChristoph Hellwig __u16 s_partition_flags;
10915aebd28SChristoph Hellwig };
11015aebd28SChristoph Hellwig
11115aebd28SChristoph Hellwig #pragma pack()
11215aebd28SChristoph Hellwig
11315aebd28SChristoph Hellwig struct udf_sb_info {
11415aebd28SChristoph Hellwig struct udf_part_map *s_partmaps;
11515aebd28SChristoph Hellwig __u8 s_volume_ident[32];
11615aebd28SChristoph Hellwig
11715aebd28SChristoph Hellwig /* Overall info */
11815aebd28SChristoph Hellwig __u16 s_partitions;
11915aebd28SChristoph Hellwig __u16 s_partition;
12015aebd28SChristoph Hellwig
12115aebd28SChristoph Hellwig /* Sector headers */
12215aebd28SChristoph Hellwig __s32 s_session;
12340346005SJan Kara __u32 s_anchor;
12415aebd28SChristoph Hellwig __u32 s_last_block;
12515aebd28SChristoph Hellwig
12615aebd28SChristoph Hellwig struct buffer_head *s_lvid_bh;
12715aebd28SChristoph Hellwig
12815aebd28SChristoph Hellwig /* Default permissions */
129faa17292SAl Viro umode_t s_umask;
130c2ba138aSEric W. Biederman kgid_t s_gid;
131c2ba138aSEric W. Biederman kuid_t s_uid;
132faa17292SAl Viro umode_t s_fmode;
133faa17292SAl Viro umode_t s_dmode;
134c03cad24SJan Kara /* Lock protecting consistency of above permission settings */
135c03cad24SJan Kara rwlock_t s_cred_lock;
13615aebd28SChristoph Hellwig
13715aebd28SChristoph Hellwig /* Root Info */
138c3b9cecdSArnd Bergmann struct timespec64 s_record_time;
13915aebd28SChristoph Hellwig
14015aebd28SChristoph Hellwig /* Fileset Info */
14115aebd28SChristoph Hellwig __u16 s_serial_number;
14215aebd28SChristoph Hellwig
14315aebd28SChristoph Hellwig /* highest UDF revision we have recorded to this media */
14415aebd28SChristoph Hellwig __u16 s_udfrev;
14515aebd28SChristoph Hellwig
14615aebd28SChristoph Hellwig /* Miscellaneous flags */
147f2a6cc1fSJan Kara unsigned long s_flags;
14815aebd28SChristoph Hellwig
14915aebd28SChristoph Hellwig /* Encoding info */
15015aebd28SChristoph Hellwig struct nls_table *s_nls_map;
15115aebd28SChristoph Hellwig
15215aebd28SChristoph Hellwig /* VAT inode */
15315aebd28SChristoph Hellwig struct inode *s_vat_inode;
15415aebd28SChristoph Hellwig
15515aebd28SChristoph Hellwig struct mutex s_alloc_mutex;
156146bca72SJan Kara /* Protected by s_alloc_mutex */
157146bca72SJan Kara unsigned int s_lvid_dirty;
15815aebd28SChristoph Hellwig };
15915aebd28SChristoph Hellwig
UDF_SB(struct super_block * sb)1601da177e4SLinus Torvalds static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
1611da177e4SLinus Torvalds {
1621da177e4SLinus Torvalds return sb->s_fs_info;
1631da177e4SLinus Torvalds }
1641da177e4SLinus Torvalds
16569d75671SJan Kara struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
1661da177e4SLinus Torvalds
167883cb9d1SMarcin Slusarz int udf_compute_nr_groups(struct super_block *sb, u32 partition);
168883cb9d1SMarcin Slusarz
UDF_QUERY_FLAG(struct super_block * sb,int flag)169f2a6cc1fSJan Kara static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
170f2a6cc1fSJan Kara {
171f2a6cc1fSJan Kara return test_bit(flag, &UDF_SB(sb)->s_flags);
172f2a6cc1fSJan Kara }
173f2a6cc1fSJan Kara
UDF_SET_FLAG(struct super_block * sb,int flag)174f2a6cc1fSJan Kara static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
175f2a6cc1fSJan Kara {
176f2a6cc1fSJan Kara set_bit(flag, &UDF_SB(sb)->s_flags);
177f2a6cc1fSJan Kara }
178f2a6cc1fSJan Kara
UDF_CLEAR_FLAG(struct super_block * sb,int flag)179f2a6cc1fSJan Kara static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
180f2a6cc1fSJan Kara {
181f2a6cc1fSJan Kara clear_bit(flag, &UDF_SB(sb)->s_flags);
182f2a6cc1fSJan Kara }
1831da177e4SLinus Torvalds
1841da177e4SLinus Torvalds #endif /* __LINUX_UDF_SB_H */
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