~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/fs/udf/udf_sb.h

Version: ~ [ linux-5.18 ] ~ [ linux-5.17.9 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.41 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.117 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.195 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.244 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.280 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.315 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef __LINUX_UDF_SB_H
  3 #define __LINUX_UDF_SB_H
  4 
  5 #include <linux/mutex.h>
  6 #include <linux/bitops.h>
  7 #include <linux/magic.h>
  8 
  9 #define UDF_MAX_READ_VERSION            0x0250
 10 #define UDF_MAX_WRITE_VERSION           0x0201
 11 
 12 #define UDF_FLAG_USE_EXTENDED_FE        0
 13 #define UDF_VERS_USE_EXTENDED_FE        0x0200
 14 #define UDF_FLAG_USE_STREAMS            1
 15 #define UDF_VERS_USE_STREAMS            0x0200
 16 #define UDF_FLAG_USE_SHORT_AD           2
 17 #define UDF_FLAG_USE_AD_IN_ICB          3
 18 #define UDF_FLAG_USE_FILE_CTIME_EA      4
 19 #define UDF_FLAG_STRICT                 5
 20 #define UDF_FLAG_UNDELETE               6
 21 #define UDF_FLAG_UNHIDE                 7
 22 #define UDF_FLAG_VARCONV                8
 23 #define UDF_FLAG_NLS_MAP                9
 24 #define UDF_FLAG_UTF8                   10
 25 #define UDF_FLAG_UID_FORGET     11    /* save -1 for uid to disk */
 26 #define UDF_FLAG_GID_FORGET     12
 27 #define UDF_FLAG_UID_SET        13
 28 #define UDF_FLAG_GID_SET        14
 29 #define UDF_FLAG_SESSION_SET    15
 30 #define UDF_FLAG_LASTBLOCK_SET  16
 31 #define UDF_FLAG_BLOCKSIZE_SET  17
 32 #define UDF_FLAG_INCONSISTENT   18
 33 #define UDF_FLAG_RW_INCOMPAT    19      /* Set when we find RW incompatible
 34                                          * feature */
 35 
 36 #define UDF_PART_FLAG_UNALLOC_BITMAP    0x0001
 37 #define UDF_PART_FLAG_UNALLOC_TABLE     0x0002
 38 #define UDF_PART_FLAG_READ_ONLY         0x0010
 39 #define UDF_PART_FLAG_WRITE_ONCE        0x0020
 40 #define UDF_PART_FLAG_REWRITABLE        0x0040
 41 #define UDF_PART_FLAG_OVERWRITABLE      0x0080
 42 
 43 #define UDF_MAX_BLOCK_LOADED    8
 44 
 45 #define UDF_TYPE1_MAP15                 0x1511U
 46 #define UDF_VIRTUAL_MAP15               0x1512U
 47 #define UDF_VIRTUAL_MAP20               0x2012U
 48 #define UDF_SPARABLE_MAP15              0x1522U
 49 #define UDF_METADATA_MAP25              0x2511U
 50 
 51 #define UDF_INVALID_MODE                ((umode_t)-1)
 52 
 53 #define MF_DUPLICATE_MD         0x01
 54 #define MF_MIRROR_FE_LOADED     0x02
 55 
 56 struct udf_meta_data {
 57         __u32   s_meta_file_loc;
 58         __u32   s_mirror_file_loc;
 59         __u32   s_bitmap_file_loc;
 60         __u32   s_alloc_unit_size;
 61         __u16   s_align_unit_size;
 62         /*
 63          * Partition Reference Number of the associated physical / sparable
 64          * partition
 65          */
 66         __u16   s_phys_partition_ref;
 67         int     s_flags;
 68         struct inode *s_metadata_fe;
 69         struct inode *s_mirror_fe;
 70         struct inode *s_bitmap_fe;
 71 };
 72 
 73 struct udf_sparing_data {
 74         __u16   s_packet_len;
 75         struct buffer_head *s_spar_map[4];
 76 };
 77 
 78 struct udf_virtual_data {
 79         __u32   s_num_entries;
 80         __u16   s_start_offset;
 81 };
 82 
 83 struct udf_bitmap {
 84         __u32                   s_extPosition;
 85         int                     s_nr_groups;
 86         struct buffer_head      *s_block_bitmap[0];
 87 };
 88 
 89 struct udf_part_map {
 90         union {
 91                 struct udf_bitmap       *s_bitmap;
 92                 struct inode            *s_table;
 93         } s_uspace;
 94         __u32   s_partition_root;
 95         __u32   s_partition_len;
 96         __u16   s_partition_type;
 97         __u16   s_partition_num;
 98         union {
 99                 struct udf_sparing_data s_sparing;
100                 struct udf_virtual_data s_virtual;
101                 struct udf_meta_data s_metadata;
102         } s_type_specific;
103         __u32   (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
104         __u16   s_volumeseqnum;
105         __u16   s_partition_flags;
106 };
107 
108 #pragma pack()
109 
110 struct udf_sb_info {
111         struct udf_part_map     *s_partmaps;
112         __u8                    s_volume_ident[32];
113 
114         /* Overall info */
115         __u16                   s_partitions;
116         __u16                   s_partition;
117 
118         /* Sector headers */
119         __s32                   s_session;
120         __u32                   s_anchor;
121         __u32                   s_last_block;
122 
123         struct buffer_head      *s_lvid_bh;
124 
125         /* Default permissions */
126         umode_t                 s_umask;
127         kgid_t                  s_gid;
128         kuid_t                  s_uid;
129         umode_t                 s_fmode;
130         umode_t                 s_dmode;
131         /* Lock protecting consistency of above permission settings */
132         rwlock_t                s_cred_lock;
133 
134         /* Root Info */
135         struct timespec64       s_record_time;
136 
137         /* Fileset Info */
138         __u16                   s_serial_number;
139 
140         /* highest UDF revision we have recorded to this media */
141         __u16                   s_udfrev;
142 
143         /* Miscellaneous flags */
144         unsigned long           s_flags;
145 
146         /* Encoding info */
147         struct nls_table        *s_nls_map;
148 
149         /* VAT inode */
150         struct inode            *s_vat_inode;
151 
152         struct mutex            s_alloc_mutex;
153         /* Protected by s_alloc_mutex */
154         unsigned int            s_lvid_dirty;
155 };
156 
157 static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
158 {
159         return sb->s_fs_info;
160 }
161 
162 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
163 
164 int udf_compute_nr_groups(struct super_block *sb, u32 partition);
165 
166 static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
167 {
168         return test_bit(flag, &UDF_SB(sb)->s_flags);
169 }
170 
171 static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
172 {
173         set_bit(flag, &UDF_SB(sb)->s_flags);
174 }
175 
176 static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
177 {
178         clear_bit(flag, &UDF_SB(sb)->s_flags);
179 }
180 
181 #endif /* __LINUX_UDF_SB_H */
182 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp