1 /* 2 * ext2fsP.h --- private header file for ext2 library 3 * 4 * Copyright (C) 1997 Theodore Ts'o. 5 * 6 * %Begin-Header% 7 * This file may be redistributed under the terms of the GNU Library 8 * General Public License, version 2. 9 * %End-Header% 10 */ 11 12 #include "ext2fs.h" 13 14 #define EXT2FS_MAX_NESTED_LINKS 8 15 16 /* 17 * Badblocks list 18 */ 19 struct ext2_struct_u32_list { 20 int magic; 21 int num; 22 int size; 23 __u32 *list; 24 int badblocks_flags; 25 }; 26 27 struct ext2_struct_u32_iterate { 28 int magic; 29 ext2_u32_list bb; 30 int ptr; 31 }; 32 33 34 /* 35 * Directory block iterator definition 36 */ 37 struct ext2_struct_dblist { 38 int magic; 39 ext2_filsys fs; 40 unsigned long long size; 41 unsigned long long count; 42 int sorted; 43 struct ext2_db_entry2 * list; 44 }; 45 46 /* 47 * For directory iterators 48 */ 49 struct dir_context { 50 ext2_ino_t dir; 51 int flags; 52 char *buf; 53 unsigned int buflen; 54 int (*func)(ext2_ino_t dir, 55 int entry, 56 struct ext2_dir_entry *dirent, 57 int offset, 58 int blocksize, 59 char *buf, 60 void *priv_data); 61 void *priv_data; 62 errcode_t errcode; 63 }; 64 65 /* 66 * Inode cache structure 67 */ 68 struct ext2_inode_cache { 69 void * buffer; 70 blk64_t buffer_blk; 71 int cache_last; 72 unsigned int cache_size; 73 int refcount; 74 struct ext2_inode_cache_ent *cache; 75 }; 76 77 struct ext2_inode_cache_ent { 78 ext2_ino_t ino; 79 struct ext2_inode *inode; 80 }; 81 82 /* Function prototypes */ 83 84 extern int ext2fs_process_dir_block(ext2_filsys fs, 85 blk64_t *blocknr, 86 e2_blkcnt_t blockcnt, 87 blk64_t ref_block, 88 int ref_offset, 89 void *priv_data); 90 91 extern errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino); 92 extern errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino); 93 extern int ext2fs_inline_data_dir_iterate(ext2_filsys fs, 94 ext2_ino_t ino, 95 void *priv_data); 96 97 /* Generic numeric progress meter */ 98 99 struct ext2fs_numeric_progress_struct { 100 __u64 max; 101 int log_max; 102 int skip_progress; 103 }; 104 105 /* 106 * progress callback functions 107 */ 108 struct ext2fs_progress_ops { 109 void (*init)(ext2_filsys fs, 110 struct ext2fs_numeric_progress_struct * progress, 111 const char *label, __u64 max); 112 void (*update)(ext2_filsys fs, 113 struct ext2fs_numeric_progress_struct * progress, 114 __u64 val); 115 void (*close)(ext2_filsys fs, 116 struct ext2fs_numeric_progress_struct * progress, 117 const char *message); 118 }; 119 120 extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops; 121 122 extern void ext2fs_numeric_progress_init(ext2_filsys fs, 123 struct ext2fs_numeric_progress_struct * progress, 124 const char *label, __u64 max); 125 extern void ext2fs_numeric_progress_update(ext2_filsys fs, 126 struct ext2fs_numeric_progress_struct * progress, 127 __u64 val); 128 extern void ext2fs_numeric_progress_close(ext2_filsys fs, 129 struct ext2fs_numeric_progress_struct * progress, 130 const char *message); 131 132 /* 133 * 64-bit bitmap support 134 */ 135 136 extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic, 137 int type, __u64 start, __u64 end, 138 __u64 real_end, 139 const char * description, 140 ext2fs_generic_bitmap *bmap); 141 142 extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap); 143 144 extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src, 145 ext2fs_generic_bitmap *dest); 146 147 extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap, 148 __u64 new_end, 149 __u64 new_real_end); 150 extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap, 151 errcode_t neq, 152 __u64 end, __u64 *oend); 153 extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap, 154 __u64 arg); 155 extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap, 156 __u64 arg); 157 extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap, 158 __u64 arg); 159 extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap, 160 __u64 start, unsigned int num, 161 void *in); 162 extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap, 163 __u64 start, unsigned int num, 164 void *out); 165 extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func); 166 167 extern int ext2fs_mem_is_zero(const char *mem, size_t len); 168 169 extern int ext2fs_file_block_offset_too_big(ext2_filsys fs, 170 struct ext2_inode *inode, 171 blk64_t offset); 172 173 /* atexit support */ 174 typedef void (*ext2_exit_fn)(void *); 175 errcode_t ext2fs_add_exit_fn(ext2_exit_fn fn, void *data); 176 errcode_t ext2fs_remove_exit_fn(ext2_exit_fn fn, void *data); 177
