blob: 1f32c7bd9f57f21fb2859413cacde08b2949fd3a [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __LINUX_UDF_SB_H
2#define __LINUX_UDF_SB_H
3
Christoph Hellwig15aebd22008-02-22 12:39:12 +01004#include <linux/mutex.h>
Jan Karaf2a6cc12010-10-20 17:25:59 +02005#include <linux/bitops.h>
Christoph Hellwig15aebd22008-02-22 12:39:12 +01006
Linus Torvalds1da177e2005-04-16 15:20:36 -07007/* Since UDF 2.01 is ISO 13346 based... */
8#define UDF_SUPER_MAGIC 0x15013346
9
Jan Karabfb257a2008-04-08 20:37:21 +020010#define UDF_MAX_READ_VERSION 0x0250
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#define UDF_MAX_WRITE_VERSION 0x0201
12
13#define UDF_FLAG_USE_EXTENDED_FE 0
14#define UDF_VERS_USE_EXTENDED_FE 0x0200
15#define UDF_FLAG_USE_STREAMS 1
16#define UDF_VERS_USE_STREAMS 0x0200
17#define UDF_FLAG_USE_SHORT_AD 2
18#define UDF_FLAG_USE_AD_IN_ICB 3
19#define UDF_FLAG_USE_FILE_CTIME_EA 4
20#define UDF_FLAG_STRICT 5
21#define UDF_FLAG_UNDELETE 6
22#define UDF_FLAG_UNHIDE 7
23#define UDF_FLAG_VARCONV 8
24#define UDF_FLAG_NLS_MAP 9
25#define UDF_FLAG_UTF8 10
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070026#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
27#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
Phillip Susi4d6660e2006-03-07 21:55:24 -080028#define UDF_FLAG_GID_FORGET 13
29#define UDF_FLAG_GID_IGNORE 14
Cyrill Gorcunovca76d2d2007-07-31 00:39:40 -070030#define UDF_FLAG_UID_SET 15
31#define UDF_FLAG_GID_SET 16
Miklos Szeredi6da80892008-02-08 04:21:50 -080032#define UDF_FLAG_SESSION_SET 17
33#define UDF_FLAG_LASTBLOCK_SET 18
Clemens Ladisch1197e4d2009-03-11 15:57:47 +010034#define UDF_FLAG_BLOCKSIZE_SET 19
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
37#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
38#define UDF_PART_FLAG_FREED_BITMAP 0x0004
39#define UDF_PART_FLAG_FREED_TABLE 0x0008
40#define UDF_PART_FLAG_READ_ONLY 0x0010
41#define UDF_PART_FLAG_WRITE_ONCE 0x0020
42#define UDF_PART_FLAG_REWRITABLE 0x0040
43#define UDF_PART_FLAG_OVERWRITABLE 0x0080
44
Christoph Hellwig15aebd22008-02-22 12:39:12 +010045#define UDF_MAX_BLOCK_LOADED 8
46
47#define UDF_TYPE1_MAP15 0x1511U
48#define UDF_VIRTUAL_MAP15 0x1512U
49#define UDF_VIRTUAL_MAP20 0x2012U
50#define UDF_SPARABLE_MAP15 0x1522U
Jan Karabfb257a2008-04-08 20:37:21 +020051#define UDF_METADATA_MAP25 0x2511U
Christoph Hellwig15aebd22008-02-22 12:39:12 +010052
Al Virofaa17292011-07-26 03:18:29 -040053#define UDF_INVALID_MODE ((umode_t)-1)
Marcin Slusarz87bc7302008-12-02 13:40:11 +010054
Christoph Hellwig15aebd22008-02-22 12:39:12 +010055#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
56
Jan Karaed47a7d2011-10-24 16:47:48 +020057#define MF_DUPLICATE_MD 0x01
58#define MF_MIRROR_FE_LOADED 0x02
59
Jan Karabfb257a2008-04-08 20:37:21 +020060struct udf_meta_data {
61 __u32 s_meta_file_loc;
62 __u32 s_mirror_file_loc;
63 __u32 s_bitmap_file_loc;
64 __u32 s_alloc_unit_size;
65 __u16 s_align_unit_size;
Jan Karaed47a7d2011-10-24 16:47:48 +020066 int s_flags;
Jan Karabfb257a2008-04-08 20:37:21 +020067 struct inode *s_metadata_fe;
68 struct inode *s_mirror_fe;
69 struct inode *s_bitmap_fe;
70};
71
Christoph Hellwig15aebd22008-02-22 12:39:12 +010072struct udf_sparing_data {
73 __u16 s_packet_len;
74 struct buffer_head *s_spar_map[4];
75};
76
77struct udf_virtual_data {
78 __u32 s_num_entries;
79 __u16 s_start_offset;
80};
81
82struct udf_bitmap {
Christoph Hellwig15aebd22008-02-22 12:39:12 +010083 __u32 s_extPosition;
Jan Kara89b1f392013-02-05 13:59:56 +010084 int s_nr_groups;
Jan Karac60305b2013-02-05 14:08:57 +010085 struct buffer_head *s_block_bitmap[0];
Christoph Hellwig15aebd22008-02-22 12:39:12 +010086};
87
88struct udf_part_map {
89 union {
90 struct udf_bitmap *s_bitmap;
91 struct inode *s_table;
92 } s_uspace;
93 union {
94 struct udf_bitmap *s_bitmap;
95 struct inode *s_table;
96 } s_fspace;
97 __u32 s_partition_root;
98 __u32 s_partition_len;
99 __u16 s_partition_type;
100 __u16 s_partition_num;
101 union {
102 struct udf_sparing_data s_sparing;
103 struct udf_virtual_data s_virtual;
Jan Karabfb257a2008-04-08 20:37:21 +0200104 struct udf_meta_data s_metadata;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100105 } s_type_specific;
106 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
107 __u16 s_volumeseqnum;
108 __u16 s_partition_flags;
109};
110
111#pragma pack()
112
113struct udf_sb_info {
114 struct udf_part_map *s_partmaps;
115 __u8 s_volume_ident[32];
116
117 /* Overall info */
118 __u16 s_partitions;
119 __u16 s_partition;
120
121 /* Sector headers */
122 __s32 s_session;
Jan Kara40346002009-03-19 16:21:38 +0100123 __u32 s_anchor;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100124 __u32 s_last_block;
125
126 struct buffer_head *s_lvid_bh;
127
128 /* Default permissions */
Al Virofaa17292011-07-26 03:18:29 -0400129 umode_t s_umask;
Eric W. Biedermanc2ba1382012-02-10 12:20:35 -0800130 kgid_t s_gid;
131 kuid_t s_uid;
Al Virofaa17292011-07-26 03:18:29 -0400132 umode_t s_fmode;
133 umode_t s_dmode;
Jan Karac03cad22010-10-20 22:17:28 +0200134 /* Lock protecting consistency of above permission settings */
135 rwlock_t s_cred_lock;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100136
137 /* Root Info */
138 struct timespec s_record_time;
139
140 /* Fileset Info */
141 __u16 s_serial_number;
142
143 /* highest UDF revision we have recorded to this media */
144 __u16 s_udfrev;
145
146 /* Miscellaneous flags */
Jan Karaf2a6cc12010-10-20 17:25:59 +0200147 unsigned long s_flags;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100148
149 /* Encoding info */
150 struct nls_table *s_nls_map;
151
152 /* VAT inode */
153 struct inode *s_vat_inode;
154
155 struct mutex s_alloc_mutex;
Jan Kara146bca72009-03-16 18:27:37 +0100156 /* Protected by s_alloc_mutex */
157 unsigned int s_lvid_dirty;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100158};
159
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
161{
162 return sb->s_fs_info;
163}
164
Jan Kara69d75672013-09-12 22:00:15 +0200165struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
Marcin Slusarz883cb9d2008-02-08 04:20:34 -0800167int udf_compute_nr_groups(struct super_block *sb, u32 partition);
168
Jan Karaf2a6cc12010-10-20 17:25:59 +0200169static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
170{
171 return test_bit(flag, &UDF_SB(sb)->s_flags);
172}
173
174static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
175{
176 set_bit(flag, &UDF_SB(sb)->s_flags);
177}
178
179static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
180{
181 clear_bit(flag, &UDF_SB(sb)->s_flags);
182}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700184#endif /* __LINUX_UDF_SB_H */