Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 1 | /* |
| 2 | * ext2fsP.h --- private header file for ext2 library |
Theodore Ts'o | efc6f62 | 2008-08-27 23:07:54 -0400 | [diff] [blame] | 3 | * |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 4 | * Copyright (C) 1997 Theodore Ts'o. |
| 5 | * |
| 6 | * %Begin-Header% |
Theodore Ts'o | 543547a | 2010-05-17 21:31:56 -0400 | [diff] [blame] | 7 | * This file may be redistributed under the terms of the GNU Library |
| 8 | * General Public License, version 2. |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 9 | * %End-Header% |
| 10 | */ |
| 11 | |
| 12 | #include "ext2fs.h" |
| 13 | |
Niu Yawei | 08ae93a | 2011-11-19 23:08:03 -0500 | [diff] [blame] | 14 | #define EXT2FS_MAX_NESTED_LINKS 8 |
| 15 | |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 16 | /* |
| 17 | * Badblocks list |
| 18 | */ |
Theodore Ts'o | b7a0056 | 2002-07-20 00:28:07 -0400 | [diff] [blame] | 19 | struct ext2_struct_u32_list { |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 20 | int magic; |
| 21 | int num; |
| 22 | int size; |
Theodore Ts'o | b7a0056 | 2002-07-20 00:28:07 -0400 | [diff] [blame] | 23 | __u32 *list; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 24 | int badblocks_flags; |
| 25 | }; |
| 26 | |
Theodore Ts'o | b7a0056 | 2002-07-20 00:28:07 -0400 | [diff] [blame] | 27 | struct ext2_struct_u32_iterate { |
| 28 | int magic; |
| 29 | ext2_u32_list bb; |
| 30 | int ptr; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 31 | }; |
| 32 | |
| 33 | |
| 34 | /* |
| 35 | * Directory block iterator definition |
| 36 | */ |
| 37 | struct ext2_struct_dblist { |
| 38 | int magic; |
| 39 | ext2_filsys fs; |
Theodore Ts'o | ab13b5a | 2010-06-13 10:00:00 -0400 | [diff] [blame] | 40 | unsigned long long size; |
| 41 | unsigned long long count; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 42 | int sorted; |
Theodore Ts'o | ab13b5a | 2010-06-13 10:00:00 -0400 | [diff] [blame] | 43 | struct ext2_db_entry2 * list; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 44 | }; |
| 45 | |
| 46 | /* |
| 47 | * For directory iterators |
| 48 | */ |
| 49 | struct dir_context { |
Theodore Ts'o | 31dbecd | 2001-01-11 04:54:39 +0000 | [diff] [blame] | 50 | ext2_ino_t dir; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 51 | int flags; |
| 52 | char *buf; |
Theodore Ts'o | 8bd0c95 | 2002-01-03 03:29:19 -0500 | [diff] [blame] | 53 | int (*func)(ext2_ino_t dir, |
| 54 | int entry, |
| 55 | struct ext2_dir_entry *dirent, |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 56 | int offset, |
| 57 | int blocksize, |
| 58 | char *buf, |
Theodore Ts'o | b5abe6f | 1998-01-19 14:47:53 +0000 | [diff] [blame] | 59 | void *priv_data); |
Theodore Ts'o | b5abe6f | 1998-01-19 14:47:53 +0000 | [diff] [blame] | 60 | void *priv_data; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 61 | errcode_t errcode; |
| 62 | }; |
| 63 | |
Theodore Ts'o | a29f4d3 | 1997-04-29 21:26:48 +0000 | [diff] [blame] | 64 | /* |
| 65 | * Inode cache structure |
| 66 | */ |
| 67 | struct ext2_inode_cache { |
| 68 | void * buffer; |
Darrick J. Wong | 4dbfd79 | 2013-10-07 09:51:48 -0400 | [diff] [blame] | 69 | blk64_t buffer_blk; |
Theodore Ts'o | a29f4d3 | 1997-04-29 21:26:48 +0000 | [diff] [blame] | 70 | int cache_last; |
| 71 | int cache_size; |
| 72 | int refcount; |
| 73 | struct ext2_inode_cache_ent *cache; |
| 74 | }; |
| 75 | |
| 76 | struct ext2_inode_cache_ent { |
Theodore Ts'o | 31dbecd | 2001-01-11 04:54:39 +0000 | [diff] [blame] | 77 | ext2_ino_t ino; |
| 78 | struct ext2_inode inode; |
Theodore Ts'o | a29f4d3 | 1997-04-29 21:26:48 +0000 | [diff] [blame] | 79 | }; |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 80 | |
| 81 | /* Function prototypes */ |
| 82 | |
Theodore Ts'o | 36a43d6 | 1998-03-24 16:17:51 +0000 | [diff] [blame] | 83 | extern int ext2fs_process_dir_block(ext2_filsys fs, |
Theodore Ts'o | ab13b5a | 2010-06-13 10:00:00 -0400 | [diff] [blame] | 84 | blk64_t *blocknr, |
Theodore Ts'o | 03673db | 1998-06-10 20:39:43 +0000 | [diff] [blame] | 85 | e2_blkcnt_t blockcnt, |
Theodore Ts'o | ab13b5a | 2010-06-13 10:00:00 -0400 | [diff] [blame] | 86 | blk64_t ref_block, |
Theodore Ts'o | 36a43d6 | 1998-03-24 16:17:51 +0000 | [diff] [blame] | 87 | int ref_offset, |
| 88 | void *priv_data); |
| 89 | |
Valerie Aurora Henson | 95fd65b | 2009-08-23 19:20:03 -0400 | [diff] [blame] | 90 | /* Generic numeric progress meter */ |
| 91 | |
| 92 | struct ext2fs_numeric_progress_struct { |
| 93 | __u64 max; |
| 94 | int log_max; |
| 95 | int skip_progress; |
| 96 | }; |
| 97 | |
| 98 | extern void ext2fs_numeric_progress_init(ext2_filsys fs, |
| 99 | struct ext2fs_numeric_progress_struct * progress, |
| 100 | const char *label, __u64 max); |
| 101 | extern void ext2fs_numeric_progress_update(ext2_filsys fs, |
| 102 | struct ext2fs_numeric_progress_struct * progress, |
| 103 | __u64 val); |
| 104 | extern void ext2fs_numeric_progress_close(ext2_filsys fs, |
| 105 | struct ext2fs_numeric_progress_struct * progress, |
| 106 | const char *message); |
Theodore Ts'o | 19c78dc | 1997-04-29 16:17:09 +0000 | [diff] [blame] | 107 | |
Theodore Ts'o | 69365c6 | 2009-08-22 13:27:40 -0400 | [diff] [blame] | 108 | /* |
| 109 | * 64-bit bitmap support |
| 110 | */ |
| 111 | |
Theodore Ts'o | 69365c6 | 2009-08-22 13:27:40 -0400 | [diff] [blame] | 112 | extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic, |
| 113 | int type, __u64 start, __u64 end, |
| 114 | __u64 real_end, |
| 115 | const char * description, |
| 116 | ext2fs_generic_bitmap *bmap); |
| 117 | |
| 118 | extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap); |
| 119 | |
| 120 | extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src, |
| 121 | ext2fs_generic_bitmap *dest); |
| 122 | |
| 123 | extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap, |
| 124 | __u64 new_end, |
| 125 | __u64 new_real_end); |
| 126 | extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap, |
| 127 | errcode_t neq, |
| 128 | __u64 end, __u64 *oend); |
| 129 | extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap, |
| 130 | __u64 arg); |
| 131 | extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap, |
| 132 | __u64 arg); |
| 133 | extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap, |
| 134 | __u64 arg); |
| 135 | extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap, |
| 136 | __u64 start, unsigned int num, |
| 137 | void *in); |
| 138 | extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap, |
| 139 | __u64 start, unsigned int num, |
| 140 | void *out); |
Andreas Dilger | 65d05ce | 2011-06-11 11:33:02 -0400 | [diff] [blame] | 141 | extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func); |
Theodore Ts'o | c21cde9 | 2010-01-30 20:08:11 -0500 | [diff] [blame] | 142 | |
Theodore Ts'o | 69365c6 | 2009-08-22 13:27:40 -0400 | [diff] [blame] | 143 | extern int ext2fs_mem_is_zero(const char *mem, size_t len); |