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...) \ 23do { \ 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 46static 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 57static 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 */ 66u8 udf_tag_checksum(const struct tag *t); 67 68struct dentry; 69struct inode; 70struct task_struct; 71struct buffer_head; 72struct super_block; 73 74extern const struct export_operations udf_export_ops; 75extern const struct inode_operations udf_dir_inode_operations; 76extern const struct file_operations udf_dir_operations; 77extern const struct inode_operations udf_file_inode_operations; 78extern const struct file_operations udf_file_operations; 79extern const struct inode_operations udf_symlink_inode_operations; 80extern const struct address_space_operations udf_aops; 81extern const struct address_space_operations udf_adinicb_aops; 82extern const struct address_space_operations udf_symlink_aops; 83 84struct udf_fileident_bh { 85 struct buffer_head *sbh; 86 struct buffer_head *ebh; 87 int soffset; 88 int eoffset; 89}; 90 91struct udf_vds_record { 92 uint32_t block; 93 uint32_t volDescSeqNum; 94}; 95 96struct generic_desc { 97 struct tag descTag; 98 __le32 volDescSeqNum; 99}; 100 101struct ustr { 102 uint8_t u_cmpID; 103 uint8_t u_name[UDF_NAME_LEN - 2]; 104 uint8_t u_len; 105}; 106 107struct extent_position { 108 struct buffer_head *bh; 109 uint32_t offset; 110 struct kernel_lb_addr block; 111}; 112 113/* super.c */ 114extern void udf_warning(struct super_block *, const char *, const char *, ...); 115static 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 */ 128extern 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 */ 133extern long udf_ioctl(struct file *, unsigned int, unsigned long); 134/* inode.c */ 135extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); 136extern int udf_sync_inode(struct inode *); 137extern void udf_expand_file_adinicb(struct inode *, int, int *); 138extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 139extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 140extern void udf_truncate(struct inode *); 141extern void udf_read_inode(struct inode *); 142extern void udf_evict_inode(struct inode *); 143extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 144extern long udf_block_map(struct inode *, sector_t); 145extern int udf_extend_file(struct inode *, struct extent_position *, 146 struct kernel_long_ad *, sector_t); 147extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 148 struct kernel_lb_addr *, uint32_t *, sector_t *); 149extern int8_t udf_add_aext(struct inode *, struct extent_position *, 150 struct kernel_lb_addr *, uint32_t, int); 151extern int8_t udf_write_aext(struct inode *, struct extent_position *, 152 struct kernel_lb_addr *, uint32_t, int); 153extern int8_t udf_delete_aext(struct inode *, struct extent_position, 154 struct kernel_lb_addr, uint32_t); 155extern int8_t udf_next_aext(struct inode *, struct extent_position *, 156 struct kernel_lb_addr *, uint32_t *, int); 157extern int8_t udf_current_aext(struct inode *, struct extent_position *, 158 struct kernel_lb_addr *, uint32_t *, int); 159 160/* misc.c */ 161extern struct buffer_head *udf_tgetblk(struct super_block *, int); 162extern struct buffer_head *udf_tread(struct super_block *, int); 163extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 164 uint32_t, uint8_t); 165extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 166 uint8_t); 167extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 168 uint32_t, uint16_t *); 169extern struct buffer_head *udf_read_ptagged(struct super_block *, 170 struct kernel_lb_addr *, uint32_t, 171 uint16_t *); 172extern void udf_update_tag(char *, int); 173extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 174 175/* lowlevel.c */ 176extern unsigned int udf_get_last_session(struct super_block *); 177extern unsigned long udf_get_last_block(struct super_block *); 178 179/* partition.c */ 180extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 181 uint32_t); 182extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 183 uint32_t); 184extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 185 uint32_t); 186extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 187 uint32_t); 188extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 189 uint32_t); 190extern int udf_relocate_blocks(struct super_block *, long, long *); 191 192static inline uint32_t 193udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 194 uint32_t offset) 195{ 196 return udf_get_pblock(sb, loc->logicalBlockNum, 197 loc->partitionReferenceNum, offset); 198} 199 200/* unicode.c */ 201extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); 202extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, 203 int); 204extern int udf_build_ustr(struct ustr *, dstring *, int); 205extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); 206 207/* ialloc.c */ 208extern void udf_free_inode(struct inode *); 209extern struct inode *udf_new_inode(struct inode *, int, int *); 210 211/* truncate.c */ 212extern void udf_truncate_tail_extent(struct inode *); 213extern void udf_discard_prealloc(struct inode *); 214extern void udf_truncate_extents(struct inode *); 215 216/* balloc.c */ 217extern void udf_free_blocks(struct super_block *, struct inode *, 218 struct kernel_lb_addr *, uint32_t, uint32_t); 219extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 220 uint32_t, uint32_t); 221extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 222 uint32_t, int *); 223 224/* directory.c */ 225extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 226 struct udf_fileident_bh *, 227 struct fileIdentDesc *, 228 struct extent_position *, 229 struct kernel_lb_addr *, uint32_t *, 230 sector_t *); 231extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 232 int *offset); 233extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 234extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 235 236/* udftime.c */ 237extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 238 struct timestamp src); 239extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 240 241#endif /* __UDF_DECL_H */ 242