fs/udf/udfdecl.h

   1 #ifndef __UDF_DECL_H
   2 #define __UDF_DECL_H
   3
   4 #include <linux/udf_fs.h>
   5 #include "ecma_167.h"
   6 #include "osta_udf.h"
   7
   8 #include <linux/fs.h>
   9 #include <linux/types.h>
  10 #include <linux/udf_fs_i.h>
  11 #include <linux/udf_fs_sb.h>
  12 #include <linux/buffer_head.h>
  13
  14 #include "udfend.h"
  15
  16 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
  17 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
  18
  19 #define UDF_EXTENT_LENGTH_MASK  0x3FFFFFFF
  20 #define UDF_EXTENT_FLAG_MASK    0xC0000000
  21
  22 #define UDF_NAME_PAD            4
  23 #define UDF_NAME_LEN            256
  24 #define UDF_PATH_LEN            1023
  25
  26 #define udf_file_entry_alloc_offset(inode)\
  27         (UDF_I(inode)->i_use ?\
  28                 sizeof(struct unallocSpaceEntry) :\
  29                 ((UDF_I(inode)->i_efe ?\
  30                         sizeof(struct extendedFileEntry) :\
  31                         sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
  32
  33 #define udf_ext0_offset(inode)\
  34         (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
  35                 udf_file_entry_alloc_offset(inode) : 0)
  36
  37 #define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
  38
  39 /* computes tag checksum */
  40 u8 udf_tag_checksum(const tag *t);
  41
  42 struct dentry;
  43 struct inode;
  44 struct task_struct;
  45 struct buffer_head;
  46 struct super_block;
  47
  48 extern const struct inode_operations udf_dir_inode_operations;
  49 extern const struct file_operations udf_dir_operations;
  50 extern const struct inode_operations udf_file_inode_operations;
  51 extern const struct file_operations udf_file_operations;
  52 extern const struct address_space_operations udf_aops;
  53 extern const struct address_space_operations udf_adinicb_aops;
  54 extern const struct address_space_operations udf_symlink_aops;
  55
  56 struct udf_fileident_bh {
  57         struct buffer_head *sbh;
  58         struct buffer_head *ebh;
  59         int soffset;
  60         int eoffset;
  61 };
  62
  63 struct udf_vds_record {
  64         uint32_t block;
  65         uint32_t volDescSeqNum;
  66 };
  67
  68 struct generic_desc {
  69         tag             descTag;
  70         __le32          volDescSeqNum;
  71 };
  72
  73 struct ustr {
  74         uint8_t u_cmpID;
  75         uint8_t u_name[UDF_NAME_LEN - 2];
  76         uint8_t u_len;
  77 };
  78
  79 struct extent_position {
  80         struct buffer_head *bh;
  81         uint32_t offset;
  82         kernel_lb_addr block;
  83 };
  84
  85 /* super.c */
  86 extern void udf_error(struct super_block *, const char *, const char *, ...);
  87 extern void udf_warning(struct super_block *, const char *, const char *, ...);
  88
  89 /* namei.c */
  90 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
  91                         struct fileIdentDesc *, struct udf_fileident_bh *,
  92                         uint8_t *, uint8_t *);
  93
  94 /* file.c */
  95 extern int udf_ioctl(struct inode *, struct file *, unsigned int,
  96                      unsigned long);
  97
  98 /* inode.c */
  99 extern struct inode *udf_iget(struct super_block *, kernel_lb_addr);
 100 extern int udf_sync_inode(struct inode *);
 101 extern void udf_expand_file_adinicb(struct inode *, int, int *);
 102 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
 103 extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
 104 extern void udf_truncate(struct inode *);
 105 extern void udf_read_inode(struct inode *);
 106 extern void udf_delete_inode(struct inode *);
 107 extern void udf_clear_inode(struct inode *);
 108 extern int udf_write_inode(struct inode *, int);
 109 extern long udf_block_map(struct inode *, sector_t);
 110 extern int udf_extend_file(struct inode *, struct extent_position *,
 111                            kernel_long_ad *, sector_t);
 112 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
 113                          kernel_lb_addr *, uint32_t *, sector_t *);
 114 extern int8_t udf_add_aext(struct inode *, struct extent_position *,
 115                            kernel_lb_addr, uint32_t, int);
 116 extern int8_t udf_write_aext(struct inode *, struct extent_position *,
 117                              kernel_lb_addr, uint32_t, int);
 118 extern int8_t udf_delete_aext(struct inode *, struct extent_position,
 119                               kernel_lb_addr, uint32_t);
 120 extern int8_t udf_next_aext(struct inode *, struct extent_position *,
 121                             kernel_lb_addr *, uint32_t *, int);
 122 extern int8_t udf_current_aext(struct inode *, struct extent_position *,
 123                                kernel_lb_addr *, uint32_t *, int);
 124
 125 /* misc.c */
 126 extern struct buffer_head *udf_tgetblk(struct super_block *, int);
 127 extern struct buffer_head *udf_tread(struct super_block *, int);
 128 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
 129                                                   uint32_t, uint8_t);
 130 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
 131                                                   uint8_t);
 132 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
 133                                            uint32_t, uint16_t *);
 134 extern struct buffer_head *udf_read_ptagged(struct super_block *,
 135                                             kernel_lb_addr, uint32_t,
 136                                             uint16_t *);
 137 extern void udf_update_tag(char *, int);
 138 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
 139
 140 /* lowlevel.c */
 141 extern unsigned int udf_get_last_session(struct super_block *);
 142 extern unsigned long udf_get_last_block(struct super_block *);
 143
 144 /* partition.c */
 145 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
 146                                uint32_t);
 147 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
 148                                       uint32_t);
 149 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
 150                                       uint32_t);
 151 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
 152                                       uint32_t);
 153 extern int udf_relocate_blocks(struct super_block *, long, long *);
 154
 155 /* unicode.c */
 156 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
 157 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
 158                             int);
 159 extern int udf_build_ustr(struct ustr *, dstring *, int);
 160 extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
 161
 162 /* ialloc.c */
 163 extern void udf_free_inode(struct inode *);
 164 extern struct inode *udf_new_inode(struct inode *, int, int *);
 165
 166 /* truncate.c */
 167 extern void udf_truncate_tail_extent(struct inode *);
 168 extern void udf_discard_prealloc(struct inode *);
 169 extern void udf_truncate_extents(struct inode *);
 170
 171 /* balloc.c */
 172 extern void udf_free_blocks(struct super_block *, struct inode *,
 173                             kernel_lb_addr, uint32_t, uint32_t);
 174 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
 175                                uint32_t, uint32_t);
 176 extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
 177                          uint32_t, int *);
 178
 179 /* fsync.c */
 180 extern int udf_fsync_file(struct file *, struct dentry *, int);
 181
 182 /* directory.c */
 183 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
 184                                                 struct udf_fileident_bh *,
 185                                                 struct fileIdentDesc *,
 186                                                 struct extent_position *,
 187                                                 kernel_lb_addr *, uint32_t *,
 188                                                 sector_t *);
 189 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
 190                                                int *offset);
 191 extern long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
 192 extern short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
 193
 194 /* crc.c */
 195 extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
 196
 197 /* udftime.c */
 198 extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
 199 extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);
 200
 201 #endif                          /* __UDF_DECL_H */