| |
| #ifndef _ISOFS_FS_H |
| #define _ISOFS_FS_H |
| |
| #include <linux/types.h> |
| /* |
| * The isofs filesystem constants/structures |
| */ |
| |
| /* This part borrowed from the bsd386 isofs */ |
| #define ISODCL(from, to) (to - from + 1) |
| |
| struct iso_volume_descriptor { |
| char type[ISODCL(1,1)]; /* 711 */ |
| char id[ISODCL(2,6)]; |
| char version[ISODCL(7,7)]; |
| char data[ISODCL(8,2048)]; |
| }; |
| |
| /* volume descriptor types */ |
| #define ISO_VD_PRIMARY 1 |
| #define ISO_VD_END 255 |
| |
| #define ISO_STANDARD_ID "CD001" |
| |
| struct iso_primary_descriptor { |
| char type [ISODCL ( 1, 1)]; /* 711 */ |
| char id [ISODCL ( 2, 6)]; |
| char version [ISODCL ( 7, 7)]; /* 711 */ |
| char unused1 [ISODCL ( 8, 8)]; |
| char system_id [ISODCL ( 9, 40)]; /* achars */ |
| char volume_id [ISODCL ( 41, 72)]; /* dchars */ |
| char unused2 [ISODCL ( 73, 80)]; |
| char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ |
| char unused3 [ISODCL ( 89, 120)]; |
| char volume_set_size [ISODCL (121, 124)]; /* 723 */ |
| char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ |
| char logical_block_size [ISODCL (129, 132)]; /* 723 */ |
| char path_table_size [ISODCL (133, 140)]; /* 733 */ |
| char type_l_path_table [ISODCL (141, 144)]; /* 731 */ |
| char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ |
| char type_m_path_table [ISODCL (149, 152)]; /* 732 */ |
| char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ |
| char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ |
| char volume_set_id [ISODCL (191, 318)]; /* dchars */ |
| char publisher_id [ISODCL (319, 446)]; /* achars */ |
| char preparer_id [ISODCL (447, 574)]; /* achars */ |
| char application_id [ISODCL (575, 702)]; /* achars */ |
| char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ |
| char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ |
| char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ |
| char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ |
| char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ |
| char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ |
| char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ |
| char file_structure_version [ISODCL (882, 882)]; /* 711 */ |
| char unused4 [ISODCL (883, 883)]; |
| char application_data [ISODCL (884, 1395)]; |
| char unused5 [ISODCL (1396, 2048)]; |
| }; |
| |
| |
| #define HS_STANDARD_ID "CDROM" |
| |
| struct hs_volume_descriptor { |
| char foo [ISODCL ( 1, 8)]; /* 733 */ |
| char type [ISODCL ( 9, 9)]; /* 711 */ |
| char id [ISODCL ( 10, 14)]; |
| char version [ISODCL ( 15, 15)]; /* 711 */ |
| char data[ISODCL(16,2048)]; |
| }; |
| |
| |
| struct hs_primary_descriptor { |
| char foo [ISODCL ( 1, 8)]; /* 733 */ |
| char type [ISODCL ( 9, 9)]; /* 711 */ |
| char id [ISODCL ( 10, 14)]; |
| char version [ISODCL ( 15, 15)]; /* 711 */ |
| char unused1 [ISODCL ( 16, 16)]; /* 711 */ |
| char system_id [ISODCL ( 17, 48)]; /* achars */ |
| char volume_id [ISODCL ( 49, 80)]; /* dchars */ |
| char unused2 [ISODCL ( 81, 88)]; /* 733 */ |
| char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ |
| char unused3 [ISODCL ( 97, 128)]; /* 733 */ |
| char volume_set_size [ISODCL (129, 132)]; /* 723 */ |
| char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ |
| char logical_block_size [ISODCL (137, 140)]; /* 723 */ |
| char path_table_size [ISODCL (141, 148)]; /* 733 */ |
| char type_l_path_table [ISODCL (149, 152)]; /* 731 */ |
| char unused4 [ISODCL (153, 180)]; /* 733 */ |
| char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ |
| }; |
| |
| /* We use this to help us look up the parent inode numbers. */ |
| |
| struct iso_path_table{ |
| unsigned char name_len[2]; /* 721 */ |
| char extent[4]; /* 731 */ |
| char parent[2]; /* 721 */ |
| char name[0]; |
| }; |
| |
| /* high sierra is identical to iso, except that the date is only 6 bytes, and |
| there is an extra reserved byte after the flags */ |
| |
| struct iso_directory_record { |
| char length [ISODCL (1, 1)]; /* 711 */ |
| char ext_attr_length [ISODCL (2, 2)]; /* 711 */ |
| char extent [ISODCL (3, 10)]; /* 733 */ |
| char size [ISODCL (11, 18)]; /* 733 */ |
| char date [ISODCL (19, 25)]; /* 7 by 711 */ |
| char flags [ISODCL (26, 26)]; |
| char file_unit_size [ISODCL (27, 27)]; /* 711 */ |
| char interleave [ISODCL (28, 28)]; /* 711 */ |
| char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ |
| unsigned char name_len [ISODCL (33, 33)]; /* 711 */ |
| char name [0]; |
| }; |
| |
| extern int isonum_711(char *); |
| extern int isonum_712(char *); |
| extern int isonum_721(char *); |
| extern int isonum_722(char *); |
| extern int isonum_723(char *); |
| extern int isonum_731(char *); |
| extern int isonum_732(char *); |
| extern int isonum_733(char *); |
| extern int iso_date(char *, int); |
| |
| extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *); |
| extern int get_rock_ridge_filename(struct iso_directory_record *, char ** name, int * len, struct inode *); |
| |
| extern char * get_rock_ridge_symlink(struct inode *); |
| extern int find_rock_ridge_relocation(struct iso_directory_record *, struct inode *); |
| |
| #define ISOFS_BLOCK_BITS 11 |
| #define ISOFS_BLOCK_SIZE 2048 |
| |
| #define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize) |
| #define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits) |
| |
| #if 0 |
| #ifdef ISOFS_FIXED_BLOCKSIZE |
| /* We use these until the buffer cache supports 2048 */ |
| #define ISOFS_BUFFER_BITS 10 |
| #define ISOFS_BUFFER_SIZE 1024 |
| |
| #define ISOFS_BLOCK_NUMBER(X) (X<<1) |
| #else |
| #define ISOFS_BUFFER_BITS 11 |
| #define ISOFS_BUFFER_SIZE 2048 |
| |
| #define ISOFS_BLOCK_NUMBER(X) (X) |
| #endif |
| #endif |
| |
| #define ISOFS_SUPER_MAGIC 0x9660 |
| #define ISOFS_FILE_UNKNOWN 0 |
| #define ISOFS_FILE_TEXT 1 |
| #define ISOFS_FILE_BINARY 2 |
| #define ISOFS_FILE_TEXT_M 3 |
| |
| |
| /* The stuff that follows may be totally unneeded. I have not checked to see |
| which prototypes we are still using. */ |
| |
| extern int isofs_open(struct inode * inode, struct file * filp); |
| extern void isofs_release(struct inode * inode, struct file * filp); |
| extern int isofs_lookup(struct inode * dir,const char * name, int len, |
| struct inode ** result); |
| extern unsigned long isofs_count_free_inodes(struct super_block *sb); |
| extern int isofs_new_block(int dev); |
| extern int isofs_free_block(int dev, int block); |
| extern int isofs_bmap(struct inode *,int); |
| |
| extern void isofs_put_super(struct super_block *); |
| extern struct super_block *isofs_read_super(struct super_block *,void *,int); |
| extern void isofs_read_inode(struct inode *); |
| extern void isofs_put_inode(struct inode *); |
| extern void isofs_statfs(struct super_block *, struct statfs *); |
| |
| extern int isofs_lseek(struct inode *, struct file *, off_t, int); |
| extern int isofs_read(struct inode *, struct file *, char *, int); |
| extern int isofs_lookup_grandparent(struct inode *, int); |
| |
| extern struct inode_operations isofs_file_inode_operations; |
| extern struct inode_operations isofs_dir_inode_operations; |
| extern struct inode_operations isofs_symlink_inode_operations; |
| extern struct inode_operations isofs_chrdev_inode_operations; |
| extern struct inode_operations isofs_blkdev_inode_operations; |
| extern struct inode_operations isofs_fifo_inode_operations; |
| |
| struct lookup_cache{ |
| char lock; |
| unsigned long dir; /* If this matches... */ |
| dev_t dev; /* And this matches */ |
| unsigned short dlen; /* and this matches... */ |
| char filename[256]; /* and this matches... */ |
| unsigned long ino; /* Then this is the file we are looking for */ |
| }; |
| |
| extern struct lookup_cache cache; |
| |
| /* The following macros are used to check for memory leaks. */ |
| #ifdef LEAK_CHECK |
| #define free_s leak_check_free_s |
| #define malloc leak_check_malloc |
| #define bread leak_check_bread |
| #define brelse leak_check_brelse |
| extern void * leak_check_malloc(unsigned int size); |
| extern void leak_check_free_s(void * obj, int size); |
| extern struct buffer_head * leak_check_bread(int dev, int block, int size); |
| extern void leak_check_brelse(struct buffer_head * bh); |
| #endif /* LEAK_CHECK */ |
| |
| #endif |
| |
| |
| |