| [eb91db7] | 1 | /*
|
|---|
| [f22d5ef0] | 2 | * Copyright (c) 2012 Frantisek Princ
|
|---|
| [eb91db7] | 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @addtogroup libext4
|
|---|
| 30 | * @{
|
|---|
| [9875711] | 31 | */
|
|---|
| [eb91db7] | 32 |
|
|---|
| 33 | #ifndef LIBEXT4_LIBEXT4_SUPERBLOCK_H_
|
|---|
| 34 | #define LIBEXT4_LIBEXT4_SUPERBLOCK_H_
|
|---|
| 35 |
|
|---|
| [01ab41b] | 36 | #include <libblock.h>
|
|---|
| [9875711] | 37 | #include <sys/types.h>
|
|---|
| 38 |
|
|---|
| [b53a733] | 39 | #include "libext4_types.h"
|
|---|
| [7bc4508] | 40 |
|
|---|
| [3712434] | 41 | extern uint32_t ext4_superblock_get_inodes_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 42 | extern void ext4_superblock_set_inodes_count(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 43 | extern uint64_t ext4_superblock_get_blocks_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 44 | extern void ext4_superblock_set_blocks_count(ext4_superblock_t *, uint64_t);
|
|---|
| [3712434] | 45 | extern uint64_t ext4_superblock_get_reserved_blocks_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 46 | extern void ext4_superblock_set_reserved_blocks_count(ext4_superblock_t *, uint64_t);
|
|---|
| [3712434] | 47 | extern uint64_t ext4_superblock_get_free_blocks_count(ext4_superblock_t *);
|
|---|
| [ae3d4f8] | 48 | extern void ext4_superblock_set_free_blocks_count(ext4_superblock_t *, uint64_t);
|
|---|
| [3712434] | 49 | extern uint32_t ext4_superblock_get_free_inodes_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 50 | extern void ext4_superblock_set_free_inodes_count(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 51 | extern uint32_t ext4_superblock_get_first_data_block(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 52 | extern void ext4_superblock_set_first_data_block(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 53 | extern uint32_t ext4_superblock_get_log_block_size(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 54 | extern void ext4_superblock_set_log_block_size(ext4_superblock_t *, uint32_t);
|
|---|
| [01ab41b] | 55 | extern uint32_t ext4_superblock_get_block_size(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 56 | extern void ext4_superblock_set_block_size(ext4_superblock_t *, uint32_t);
|
|---|
| [fb04cd90] | 57 | extern uint32_t ext4_superblock_get_log_frag_size(ext4_superblock_t *);
|
|---|
| 58 | extern void ext4_superblock_set_log_frag_size(ext4_superblock_t *, uint32_t);
|
|---|
| 59 | extern uint32_t ext4_superblock_get_frag_size(ext4_superblock_t *);
|
|---|
| 60 | extern void ext4_superblock_set_frag_size(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 61 | extern uint32_t ext4_superblock_get_blocks_per_group(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 62 | extern void ext4_superblock_set_blocks_per_group(ext4_superblock_t *, uint32_t);
|
|---|
| [fb04cd90] | 63 | extern uint32_t ext4_superblock_get_frags_per_group(ext4_superblock_t *);
|
|---|
| 64 | extern void ext4_superblock_set_frags_per_group(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 65 | extern uint32_t ext4_superblock_get_inodes_per_group(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 66 | extern void ext4_superblock_set_inodes_per_group(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 67 | extern uint32_t ext4_superblock_get_mount_time(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 68 | extern void ext4_superblock_set_mount_time(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 69 | extern uint32_t ext4_superblock_get_write_time(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 70 | extern void ext4_superblock_set_write_time(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 71 | extern uint16_t ext4_superblock_get_mount_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 72 | extern void ext4_superblock_set_mount_count(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 73 | extern uint16_t ext4_superblock_get_max_mount_count(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 74 | extern void ext4_superblock_set_max_mount_count(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 75 | extern uint16_t ext4_superblock_get_magic(ext4_superblock_t *);
|
|---|
| [9fc72fb3] | 76 | extern void ext4_superblock_set_magic(ext4_superblock_t *sb, uint16_t magic);
|
|---|
| [3712434] | 77 | extern uint16_t ext4_superblock_get_state(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 78 | extern void ext4_superblock_set_state(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 79 | extern uint16_t ext4_superblock_get_errors(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 80 | extern void ext4_superblock_set_errors(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 81 | extern uint16_t ext4_superblock_get_minor_rev_level(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 82 | extern void ext4_superblock_set_minor_rev_level(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 83 | extern uint32_t ext4_superblock_get_last_check_time(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 84 | extern void ext4_superblock_set_last_check_time(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 85 | extern uint32_t ext4_superblock_get_check_interval(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 86 | extern void ext4_superblock_set_check_interval(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 87 | extern uint32_t ext4_superblock_get_creator_os(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 88 | extern void ext4_superblock_set_creator_os(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 89 | extern uint32_t ext4_superblock_get_rev_level(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 90 | extern void ext4_superblock_set_rev_level(ext4_superblock_t *, uint32_t);
|
|---|
| 91 | extern uint16_t ext4_superblock_get_def_resuid(ext4_superblock_t *);
|
|---|
| 92 | extern void ext4_superblock_set_def_resuid(ext4_superblock_t *, uint16_t);
|
|---|
| 93 | extern uint16_t ext4_superblock_get_def_resgid(ext4_superblock_t *);
|
|---|
| 94 | extern void ext4_superblock_set_def_resgid(ext4_superblock_t *, uint16_t);
|
|---|
| [3712434] | 95 | extern uint32_t ext4_superblock_get_first_inode(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 96 | extern void ext4_superblock_set_first_inode(ext4_superblock_t *, uint32_t);
|
|---|
| [3712434] | 97 | extern uint16_t ext4_superblock_get_inode_size(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 98 | extern void ext4_superblock_set_inode_size(ext4_superblock_t *, uint16_t);
|
|---|
| [2226cc3] | 99 | extern uint16_t ext4_superblock_get_block_group_index(ext4_superblock_t *);
|
|---|
| 100 | extern void ext4_superblock_set_block_group_index(ext4_superblock_t *, uint16_t);
|
|---|
| [9c0c0e1] | 101 | extern uint32_t ext4_superblock_get_features_compatible(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 102 | extern void ext4_superblock_set_features_compatible(ext4_superblock_t *, uint32_t);
|
|---|
| [9c0c0e1] | 103 | extern uint32_t ext4_superblock_get_features_incompatible(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 104 | extern void ext4_superblock_set_features_incompatible(ext4_superblock_t *, uint32_t);
|
|---|
| [9c0c0e1] | 105 | extern uint32_t ext4_superblock_get_features_read_only(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 106 | extern void ext4_superblock_set_features_read_only(ext4_superblock_t *, uint32_t);
|
|---|
| [01ab41b] | 107 |
|
|---|
| [291af81] | 108 | extern const uint8_t * ext4_superblock_get_uuid(ext4_superblock_t *);
|
|---|
| 109 | extern void ext4_superblock_set_uuid(ext4_superblock_t *, const uint8_t *);
|
|---|
| 110 | extern const char * ext4_superblock_get_volume_name(ext4_superblock_t *);
|
|---|
| 111 | extern void ext4_superblock_set_volume_name(ext4_superblock_t *, const char *);
|
|---|
| 112 | extern const char * ext4_superblock_get_last_mounted(ext4_superblock_t *);
|
|---|
| 113 | extern void ext4_superblock_set_last_mounted(ext4_superblock_t *, const char *);
|
|---|
| 114 |
|
|---|
| [3712434] | 115 | /*
|
|---|
| 116 | uint32_t s_algorithm_usage_bitmap; // For compression
|
|---|
| 117 | uint8_t s_prealloc_blocks; // Number of blocks to try to preallocate
|
|---|
| 118 | uint8_t s_prealloc_dir_blocks; // Number to preallocate for dirs
|
|---|
| 119 | uint16_t s_reserved_gdt_blocks; // Per group desc for online growth
|
|---|
| 120 | uint8_t s_journal_uuid[16]; // UUID of journal superblock
|
|---|
| 121 | uint32_t s_journal_inum; // Inode number of journal file
|
|---|
| 122 | uint32_t s_journal_dev; // Device number of journal file
|
|---|
| [7bc4508] | 123 | */
|
|---|
| [ebcaff4] | 124 | extern uint32_t ext4_superblock_get_last_orphan(ext4_superblock_t *);
|
|---|
| 125 | extern void ext4_superblock_set_last_orphan(ext4_superblock_t *, uint32_t);
|
|---|
| [2226cc3] | 126 | extern const uint32_t * ext4_superblock_get_hash_seed(ext4_superblock_t *);
|
|---|
| 127 | extern void ext4_superblock_set_hash_seed(ext4_superblock_t *, const uint32_t *);
|
|---|
| [7eb033ce] | 128 | extern uint8_t ext4_superblock_get_default_hash_version(ext4_superblock_t *);
|
|---|
| 129 | extern void ext4_superblock_set_default_hash_version(ext4_superblock_t *, uint8_t);
|
|---|
| [7bc4508] | 130 | /*
|
|---|
| [3712434] | 131 | uint8_t s_jnl_backup_type;
|
|---|
| [c25e39b] | 132 | */
|
|---|
| 133 |
|
|---|
| 134 | extern uint16_t ext4_superblock_get_desc_size(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 135 | extern void ext4_superblock_set_desc_size(ext4_superblock_t *, uint16_t);
|
|---|
| [c25e39b] | 136 |
|
|---|
| 137 | /*
|
|---|
| [3712434] | 138 | uint32_t s_default_mount_opts; // Default mount options
|
|---|
| 139 | uint32_t s_first_meta_bg; // First metablock block group
|
|---|
| 140 | uint32_t s_mkfs_time; // When the filesystem was created
|
|---|
| 141 | uint32_t s_jnl_blocks[17]; // Backup of the journal inode
|
|---|
| 142 | uint16_t s_min_extra_isize; // All inodes have at least # bytes
|
|---|
| 143 | uint16_t s_want_extra_isize; // New inodes should reserve # bytes
|
|---|
| [7bc4508] | 144 | */
|
|---|
| 145 | extern uint32_t ext4_superblock_get_flags(ext4_superblock_t *);
|
|---|
| [fe27eb4] | 146 | extern void ext4_superblock_set_flags(ext4_superblock_t *, uint32_t);
|
|---|
| [7bc4508] | 147 | /*
|
|---|
| [3712434] | 148 | uint16_t s_raid_stride; // RAID stride
|
|---|
| 149 | uint16_t s_mmp_interval; // # seconds to wait in MMP checking
|
|---|
| 150 | uint64_t s_mmp_block; // Block for multi-mount protection
|
|---|
| 151 | uint32_t s_raid_stripe_width; // blocks on all data disks (N*stride)
|
|---|
| 152 | uint8_t s_log_groups_per_flex; // FLEX_BG group size
|
|---|
| 153 | uint8_t s_reserved_char_pad;
|
|---|
| 154 | uint16_t s_reserved_pad;
|
|---|
| 155 | uint64_t s_kbytes_written; // Number of lifetime kilobytes written
|
|---|
| 156 | uint32_t s_snapshot_inum; // Inode number of active snapshot
|
|---|
| 157 | uint32_t s_snapshot_id; // Sequential ID of active snapshot
|
|---|
| 158 | uint64_t s_snapshot_r_blocks_count; // reserved blocks for active snapshot's future use
|
|---|
| 159 | uint32_t s_snapshot_list; // inode number of the head of the on-disk snapshot list
|
|---|
| 160 | uint32_t s_error_count; // number of fs errors
|
|---|
| 161 | uint32_t s_first_error_time; // First time an error happened
|
|---|
| 162 | uint32_t s_first_error_ino; // Inode involved in first error
|
|---|
| 163 | uint64_t s_first_error_block; // block involved of first error
|
|---|
| 164 | uint8_t s_first_error_func[32]; // Function where the error happened
|
|---|
| 165 | uint32_t s_first_error_line; // Line number where error happened
|
|---|
| 166 | uint32_t s_last_error_time; // Most recent time of an error
|
|---|
| 167 | uint32_t s_last_error_ino; // Inode involved in last error
|
|---|
| 168 | uint32_t s_last_error_line; // Line number where error happened
|
|---|
| 169 | uint64_t s_last_error_block; // block involved of last error
|
|---|
| 170 | uint8_t s_last_error_func[32]; // function where the error happened
|
|---|
| 171 | uint8_t s_mount_opts[64];
|
|---|
| 172 | */
|
|---|
| 173 |
|
|---|
| 174 | /* More complex superblock functions */
|
|---|
| [7bc4508] | 175 | extern bool ext4_superblock_has_flag(ext4_superblock_t *, uint32_t);
|
|---|
| [c25e39b] | 176 | extern bool ext4_superblock_has_feature_compatible(ext4_superblock_t *, uint32_t);
|
|---|
| 177 | extern bool ext4_superblock_has_feature_incompatible(ext4_superblock_t *, uint32_t);
|
|---|
| 178 | extern bool ext4_superblock_has_feature_read_only(ext4_superblock_t *, uint32_t);
|
|---|
| [01ab41b] | 179 | extern int ext4_superblock_read_direct(service_id_t, ext4_superblock_t **);
|
|---|
| [ae3d4f8] | 180 | extern int ext4_superblock_write_direct(service_id_t, ext4_superblock_t *);
|
|---|
| [01ab41b] | 181 | extern int ext4_superblock_check_sanity(ext4_superblock_t *);
|
|---|
| [eb91db7] | 182 |
|
|---|
| [b12ca16] | 183 | extern uint32_t ext4_superblock_get_block_group_count(ext4_superblock_t *);
|
|---|
| 184 | extern uint32_t ext4_superblock_get_blocks_in_group(ext4_superblock_t *, uint32_t);
|
|---|
| 185 | extern uint32_t ext4_superblock_get_inodes_in_group(ext4_superblock_t *, uint32_t);
|
|---|
| 186 |
|
|---|
| [eb91db7] | 187 | #endif
|
|---|
| 188 |
|
|---|
| 189 | /**
|
|---|
| 190 | * @}
|
|---|
| 191 | */
|
|---|
