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 extern void udf_warning(struct super_block *, const char *, const char *, ...); 115 static inline void udf_updated_lvid(struct super_block *sb) 116 { 117 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 118 119 BUG_ON(!bh); 120 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 121 bh->b_data)->integrityType != 122 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 123 sb->s_dirt = 1; 124 UDF_SB(sb)->s_lvid_dirty = 1; 125 } 126 127 /* namei.c */ 128 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 129 struct fileIdentDesc *, struct udf_fileident_bh *, 130 uint8_t *, uint8_t *); 131 132 /* file.c */ 133 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 134 /* inode.c */ 135 extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); 136 extern int udf_sync_inode(struct inode *); 137 extern void udf_expand_file_adinicb(struct inode *, int, int *); 138 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 139 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 140 extern void udf_truncate(struct inode *); 141 extern void udf_read_inode(struct inode *); 142 extern void udf_delete_inode(struct inode *); 143 extern void udf_clear_inode(struct inode *); 144 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 145 extern long udf_block_map(struct inode *, sector_t); 146 extern int udf_extend_file(struct inode *, struct extent_position *, 147 struct kernel_long_ad *, sector_t); 148 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 149 struct kernel_lb_addr *, uint32_t *, sector_t *); 150 extern int8_t udf_add_aext(struct inode *, struct extent_position *, 151 struct kernel_lb_addr *, uint32_t, int); 152 extern int8_t udf_write_aext(struct inode *, struct extent_position *, 153 struct kernel_lb_addr *, uint32_t, int); 154 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 155 struct kernel_lb_addr, uint32_t); 156 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 157 struct kernel_lb_addr *, uint32_t *, int); 158 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 159 struct kernel_lb_addr *, uint32_t *, int); 160 161 /* misc.c */ 162 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 163 extern struct buffer_head *udf_tread(struct super_block *, int); 164 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 165 uint32_t, uint8_t); 166 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 167 uint8_t); 168 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 169 uint32_t, uint16_t *); 170 extern struct buffer_head *udf_read_ptagged(struct super_block *, 171 struct kernel_lb_addr *, uint32_t, 172 uint16_t *); 173 extern void udf_update_tag(char *, int); 174 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 175 176 /* lowlevel.c */ 177 extern unsigned int udf_get_last_session(struct super_block *); 178 extern unsigned long udf_get_last_block(struct super_block *); 179 180 /* partition.c */ 181 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 182 uint32_t); 183 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 184 uint32_t); 185 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 186 uint32_t); 187 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 188 uint32_t); 189 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 190 uint32_t); 191 extern int udf_relocate_blocks(struct super_block *, long, long *); 192 193 static inline uint32_t 194 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 195 uint32_t offset) 196 { 197 return udf_get_pblock(sb, loc->logicalBlockNum, 198 loc->partitionReferenceNum, offset); 199 } 200 201 /* unicode.c */ 202 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); 203 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, 204 int); 205 extern int udf_build_ustr(struct ustr *, dstring *, int); 206 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); 207 208 /* ialloc.c */ 209 extern void udf_free_inode(struct inode *); 210 extern struct inode *udf_new_inode(struct inode *, int, int *); 211 212 /* truncate.c */ 213 extern void udf_truncate_tail_extent(struct inode *); 214 extern void udf_discard_prealloc(struct inode *); 215 extern void udf_truncate_extents(struct inode *); 216 217 /* balloc.c */ 218 extern void udf_free_blocks(struct super_block *, struct inode *, 219 struct kernel_lb_addr *, uint32_t, uint32_t); 220 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 221 uint32_t, uint32_t); 222 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 223 uint32_t, int *); 224 225 /* directory.c */ 226 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 227 struct udf_fileident_bh *, 228 struct fileIdentDesc *, 229 struct extent_position *, 230 struct kernel_lb_addr *, uint32_t *, 231 sector_t *); 232 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 233 int *offset); 234 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 235 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 236 237 /* udftime.c */ 238 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 239 struct timestamp src); 240 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 241 242 #endif /* __UDF_DECL_H */ 243