1 #ifndef __UDF_DECL_H 2 #define __UDF_DECL_H 3 4 #include "ecma_167.h" 5 #include "osta_udf.h" 6 7 #include <linux/fs.h> 8 #include <linux/types.h> 9 #include <linux/buffer_head.h> 10 #include <linux/udf_fs_i.h> 11 12 #include "udf_sb.h" 13 #include "udfend.h" 14 #include "udf_i.h" 15 16 #define UDF_PREALLOCATE 17 #define UDF_DEFAULT_PREALLOC_BLOCKS 8 18 19 #undef UDFFS_DEBUG 20 21 #ifdef UDFFS_DEBUG 22 #define udf_debug(f, a...) \ 23 do { \ 24 printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \ 25 __FILE__, __LINE__, __func__); \ 26 printk(f, ##a); \ 27 } while (0) 28 #else 29 #define udf_debug(f, a...) /**/ 30 #endif 31 32 #define udf_info(f, a...) \ 33 printk(KERN_INFO "UDF-fs INFO " f, ##a); 34 35 36 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) ) 37 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) ) 38 39 #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF 40 #define UDF_EXTENT_FLAG_MASK 0xC0000000 41 42 #define UDF_NAME_PAD 4 43 #define UDF_NAME_LEN 256 44 #define UDF_PATH_LEN 1023 45 46 static inline size_t udf_file_entry_alloc_offset(struct inode *inode) 47 { 48 struct udf_inode_info *iinfo = UDF_I(inode); 49 if (iinfo->i_use) 50 return sizeof(struct unallocSpaceEntry); 51 else if (iinfo->i_efe) 52 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr; 53 else 54 return sizeof(struct fileEntry) + iinfo->i_lenEAttr; 55 } 56 57 static inline size_t udf_ext0_offset(struct inode *inode) 58 { 59 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) 60 return udf_file_entry_alloc_offset(inode); 61 else 62 return 0; 63 } 64 65 /* computes tag checksum */ 66 u8 udf_tag_checksum(const struct tag *t); 67 68 struct dentry; 69 struct inode; 70 struct task_struct; 71 struct buffer_head; 72 struct super_block; 73 74 extern const struct export_operations udf_export_ops; 75 extern const struct inode_operations udf_dir_inode_operations; 76 extern const struct file_operations udf_dir_operations; 77 extern const struct inode_operations udf_file_inode_operations; 78 extern const struct file_operations udf_file_operations; 79 extern const struct inode_operations udf_symlink_inode_operations; 80 extern const struct address_space_operations udf_aops; 81 extern const struct address_space_operations udf_adinicb_aops; 82 extern const struct address_space_operations udf_symlink_aops; 83 84 struct udf_fileident_bh { 85 struct buffer_head *sbh; 86 struct buffer_head *ebh; 87 int soffset; 88 int eoffset; 89 }; 90 91 struct udf_vds_record { 92 uint32_t block; 93 uint32_t volDescSeqNum; 94 }; 95 96 struct generic_desc { 97 struct tag descTag; 98 __le32 volDescSeqNum; 99 }; 100 101 struct ustr { 102 uint8_t u_cmpID; 103 uint8_t u_name[UDF_NAME_LEN - 2]; 104 uint8_t u_len; 105 }; 106 107 struct extent_position { 108 struct buffer_head *bh; 109 uint32_t offset; 110 struct kernel_lb_addr block; 111 }; 112 113 /* super.c */ 114 115 __attribute__((format(printf, 3, 4))) 116 extern void udf_warning(struct super_block *, const char *, const char *, ...); 117 static inline void udf_updated_lvid(struct super_block *sb) 118 { 119 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 120 121 BUG_ON(!bh); 122 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 123 bh->b_data)->integrityType != 124 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 125 sb->s_dirt = 1; 126 UDF_SB(sb)->s_lvid_dirty = 1; 127 } 128 extern u64 lvid_get_unique_id(struct super_block *sb); 129 130 /* namei.c */ 131 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 132 struct fileIdentDesc *, struct udf_fileident_bh *, 133 uint8_t *, uint8_t *); 134 135 /* file.c */ 136 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 137 /* inode.c */ 138 extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); 139 extern void udf_expand_file_adinicb(struct inode *, int, int *); 140 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 141 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 142 extern void udf_truncate(struct inode *); 143 extern void udf_read_inode(struct inode *); 144 extern void udf_evict_inode(struct inode *); 145 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 146 extern long udf_block_map(struct inode *, sector_t); 147 extern int udf_extend_file(struct inode *, struct extent_position *, 148 struct kernel_long_ad *, sector_t); 149 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 150 struct kernel_lb_addr *, uint32_t *, sector_t *); 151 extern int8_t udf_add_aext(struct inode *, struct extent_position *, 152 struct kernel_lb_addr *, uint32_t, int); 153 extern int8_t udf_write_aext(struct inode *, struct extent_position *, 154 struct kernel_lb_addr *, uint32_t, int); 155 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 156 struct kernel_lb_addr, uint32_t); 157 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 158 struct kernel_lb_addr *, uint32_t *, int); 159 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 160 struct kernel_lb_addr *, uint32_t *, int); 161 162 /* misc.c */ 163 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 164 extern struct buffer_head *udf_tread(struct super_block *, int); 165 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 166 uint32_t, uint8_t); 167 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 168 uint8_t); 169 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 170 uint32_t, uint16_t *); 171 extern struct buffer_head *udf_read_ptagged(struct super_block *, 172 struct kernel_lb_addr *, uint32_t, 173 uint16_t *); 174 extern void udf_update_tag(char *, int); 175 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 176 177 /* lowlevel.c */ 178 extern unsigned int udf_get_last_session(struct super_block *); 179 extern unsigned long udf_get_last_block(struct super_block *); 180 181 /* partition.c */ 182 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 183 uint32_t); 184 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 185 uint32_t); 186 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 187 uint32_t); 188 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 189 uint32_t); 190 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 191 uint32_t); 192 extern int udf_relocate_blocks(struct super_block *, long, long *); 193 194 static inline uint32_t 195 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 196 uint32_t offset) 197 { 198 return udf_get_pblock(sb, loc->logicalBlockNum, 199 loc->partitionReferenceNum, offset); 200 } 201 202 /* unicode.c */ 203 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); 204 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, 205 int); 206 extern int udf_build_ustr(struct ustr *, dstring *, int); 207 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); 208 209 /* ialloc.c */ 210 extern void udf_free_inode(struct inode *); 211 extern struct inode *udf_new_inode(struct inode *, int, int *); 212 213 /* truncate.c */ 214 extern void udf_truncate_tail_extent(struct inode *); 215 extern void udf_discard_prealloc(struct inode *); 216 extern void udf_truncate_extents(struct inode *); 217 218 /* balloc.c */ 219 extern void udf_free_blocks(struct super_block *, struct inode *, 220 struct kernel_lb_addr *, uint32_t, uint32_t); 221 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 222 uint32_t, uint32_t); 223 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 224 uint32_t, int *); 225 226 /* directory.c */ 227 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 228 struct udf_fileident_bh *, 229 struct fileIdentDesc *, 230 struct extent_position *, 231 struct kernel_lb_addr *, uint32_t *, 232 sector_t *); 233 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 234 int *offset); 235 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 236 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 237 238 /* udftime.c */ 239 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 240 struct timestamp src); 241 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 242 243 #endif /* __UDF_DECL_H */ 244