diff options
Diffstat (limited to 'lib/ext2fs/ext2fsP.h')
| -rw-r--r-- | lib/ext2fs/ext2fsP.h | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/lib/ext2fs/ext2fsP.h b/lib/ext2fs/ext2fsP.h new file mode 100644 index 0000000..0687384 --- /dev/null +++ b/lib/ext2fs/ext2fsP.h @@ -0,0 +1,210 @@ +/* + * ext2fsP.h --- private header file for ext2 library + * + * Copyright (C) 1997 Theodore Ts'o. + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Library + * General Public License, version 2. + * %End-Header% + */ + +#if HAVE_SYS_STAT_H +#include <sys/stat.h> +#endif + +#include "ext2fs.h" + +#define EXT2FS_MAX_NESTED_LINKS 8 + +static inline int ext2fsP_is_disk_device(mode_t mode) +{ +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + return S_ISBLK(mode) || S_ISCHR(mode); +#else + return S_ISBLK(mode); +#endif +} + +/* + * Badblocks list + */ +struct ext2_struct_u32_list { + int magic; + int num; + int size; + __u32 *list; + int badblocks_flags; +}; + +struct ext2_struct_u32_iterate { + int magic; + ext2_u32_list bb; + int ptr; +}; + + +/* + * Directory block iterator definition + */ +struct ext2_struct_dblist { + int magic; + ext2_filsys fs; + unsigned long long size; + unsigned long long count; + int sorted; + struct ext2_db_entry2 * list; +}; + +/* + * For directory iterators + */ +struct dir_context { + ext2_ino_t dir; + int flags; + char *buf; + unsigned int buflen; + int (*func)(ext2_ino_t dir, + int entry, + struct ext2_dir_entry *dirent, + int offset, + int blocksize, + char *buf, + void *priv_data); + void *priv_data; + errcode_t errcode; +}; + +/* + * Inode cache structure + */ +struct ext2_inode_cache { + void * buffer; + blk64_t buffer_blk; + int cache_last; + unsigned int cache_size; + int refcount; + struct ext2_inode_cache_ent *cache; +}; + +struct ext2_inode_cache_ent { + ext2_ino_t ino; + struct ext2_inode *inode; +}; + +/* + * NLS definitions + */ +struct ext2fs_nls_table { + int version; + const struct ext2fs_nls_ops *ops; +}; + +struct ext2fs_nls_ops { + int (*casefold)(const struct ext2fs_nls_table *charset, + const unsigned char *str, size_t len, + unsigned char *dest, size_t dlen); + int (*validate)(const struct ext2fs_nls_table *table, + char *s, size_t len, char **pos); + int (*casefold_cmp)(const struct ext2fs_nls_table *table, + const unsigned char *str1, size_t len1, + const unsigned char *str2, size_t len2); +}; + +/* Function prototypes */ + +extern int ext2fs_process_dir_block(ext2_filsys fs, + blk64_t *blocknr, + e2_blkcnt_t blockcnt, + blk64_t ref_block, + int ref_offset, + void *priv_data); + +extern errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino); +extern errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino); +extern int ext2fs_inline_data_dir_iterate(ext2_filsys fs, + ext2_ino_t ino, + void *priv_data); + +/* Generic numeric progress meter */ + +struct ext2fs_numeric_progress_struct { + __u64 max; + int log_max; + int skip_progress; +}; + +/* + * progress callback functions + */ +struct ext2fs_progress_ops { + void (*init)(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + const char *label, __u64 max); + void (*update)(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + __u64 val); + void (*close)(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + const char *message); +}; + +extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops; + +extern void ext2fs_numeric_progress_init(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + const char *label, __u64 max); +extern void ext2fs_numeric_progress_update(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + __u64 val); +extern void ext2fs_numeric_progress_close(ext2_filsys fs, + struct ext2fs_numeric_progress_struct * progress, + const char *message); + +/* + * 64-bit bitmap support + */ + +extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic, + int type, __u64 start, __u64 end, + __u64 real_end, + const char * description, + ext2fs_generic_bitmap *bmap); + +extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap); + +extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src, + ext2fs_generic_bitmap *dest); + +extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap, + __u64 new_end, + __u64 new_real_end); +extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap, + errcode_t neq, + __u64 end, __u64 *oend); +extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap, + __u64 arg); +extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap, + __u64 arg); +extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap, + __u64 arg); +extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap, + __u64 start, unsigned int num, + void *in); +extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap, + __u64 start, unsigned int num, + void *out); +extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func); + +extern int ext2fs_mem_is_zero(const char *mem, size_t len); + +extern int ext2fs_file_block_offset_too_big(ext2_filsys fs, + struct ext2_inode *inode, + blk64_t offset); + +/* atexit support */ +typedef void (*ext2_exit_fn)(void *); +errcode_t ext2fs_add_exit_fn(ext2_exit_fn fn, void *data); +errcode_t ext2fs_remove_exit_fn(ext2_exit_fn fn, void *data); + +#define EXT2FS_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2*!!(cond)])) |