toybox: toys/e2fs.h annotate

annotate toys/e2fs.h @ 82:612c8d6c2829

More work on mke2fs.

author	Rob Landley <rob@landley.net>
date	Sun, 28 Jan 2007 04:54:01 -0500
parents	f95f6fd94eed
children	4c81e6375719

rev	line source
75 89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	1 /* vi: set ts=4:
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	2 *
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	3 * mke2fs.h - Headers for ext2
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	4 *
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	5 * Copyright 2006 Rob Landley <rob@landley.net>
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	6 */
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	7
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	8 // Stuff defined in linux/ext2_fs.h
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	9
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	10 #define EXT2_SUPER_MAGIC 0xEF53
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	11
76 e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	12 struct ext2_superblock {
75 89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	13 uint32_t inodes_count; // Inodes count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	14 uint32_t blocks_count; // Blocks count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	15 uint32_t r_blocks_count; // Reserved blocks count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	16 uint32_t free_blocks_count; // Free blocks count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	17 uint32_t free_inodes_count; // Free inodes count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	18 uint32_t first_data_block; // First Data Block
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	19 uint32_t log_block_size; // Block size
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	20 uint32_t log_frag_size; // Fragment size
76 e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	21 uint32_t blocks_per_group; // Blocks per group
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	22 uint32_t frags_per_group; // Fragments per group
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	23 uint32_t inodes_per_group; // Inodes per group
75 89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	24 uint32_t mtime; // Mount time
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	25 uint32_t wtime; // Write time
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	26 uint16_t mnt_count; // Mount count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	27 uint16_t max_mnt_count; // Maximal mount count
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	28 uint16_t magic; // Magic signature
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	29 uint16_t state; // File system state
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	30 uint16_t errors; // Behaviour when detecting errors
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	31 uint16_t minor_rev_level; // minor revision level
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	32 uint32_t lastcheck; // time of last check
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	33 uint32_t checkinterval; // max. time between checks
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	34 uint32_t creator_os; // OS
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	35 uint32_t rev_level; // Revision level
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	36 uint16_t def_resuid; // Default uid for reserved blocks
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	37 uint16_t def_resgid; // Default gid for reserved blocks
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	38 uint32_t first_ino; // First non-reserved inode
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	39 uint16_t inode_size; // size of inode structure
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	40 uint16_t block_group_nr; // block group # of this superblock
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	41 uint32_t feature_compat; // compatible feature set
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	42 uint32_t feature_incompat; // incompatible feature set
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	43 uint32_t feature_ro_compat; // readonly-compatible feature set
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	44 char uuid[16]; // 128-bit uuid for volume
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	45 char volume_name[16]; // volume name
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	46 char last_mounted[64]; // directory where last mounted
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	47 uint32_t alg_usage_bitmap; // For compression
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	48 // For EXT2_COMPAT_PREALLOC
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	49 uint8_t prealloc_blocks; // Nr of blocks to try to preallocate
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	50 uint8_t prealloc_dir_blocks; //Nr to preallocate for dirs
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	51 uint16_t padding1;
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	52 // For EXT3_FEATURE_COMPAT_HAS_JOURNAL
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	53 uint8_t journal_uuid[16]; // uuid of journal superblock
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	54 uint32_t journal_inum; // inode number of journal file
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	55 uint32_t journal_dev; // device number of journal file
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	56 uint32_t last_orphan; // start of list of inodes to delete
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	57 uint32_t hash_seed[4]; // HTREE hash seed
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	58 uint8_t def_hash_version; // Default hash version to use
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	59 uint8_t padding2[3];
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	60 uint32_t default_mount_opts;
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	61 uint32_t first_meta_bg; // First metablock block group
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	62 uint32_t mkfs_time; // Creation timestamp
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	63 uint32_t jnl_blocks[17]; // Backup of journal inode
81 f95f6fd94eed Move superblock initialization to a function. Trim unused padding from Rob Landley <rob@landley.net> parents: 80 diff changeset	64 // uint32_t reserved[172]; // Padding to the end of the block
75 89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	65 };
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	66
80 7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	67 struct ext2_group
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	68 {
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	69 uint32_t block_bitmap; // Block number of block bitmap
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	70 uint32_t inode_bitmap; // Block number of inode bitmap
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	71 uint32_t inode_table; // Block number of inode table
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	72 uint16_t free_blocks_count; // How many free blocks in this group?
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	73 uint16_t free_inodes_count; // How many free inodes in this group?
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	74 uint16_t used_dirs_count; // How many directories?
82 612c8d6c2829 More work on mke2fs. Rob Landley <rob@landley.net> parents: 81 diff changeset	75 uint16_t reserved[7]; // pad to 32 bytes
80 7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	76 };
7a058d60faf1 One more field, minor shrinking, and start on block groups. Rob Landley <rob@landley.net> parents: 76 diff changeset	77
76 e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	78 struct ext2_dentry {
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	79 uint32_t inode; // Inode number
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	80 uint16_t rec_len; // Directory entry length
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	81 uint8_t name_len; // Name length
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	82 uint8_t file_type;
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	83 char name[255]; // File name
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	84 };
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	85
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	86 struct ext2_inode {
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	87 uint16_t mode; // File mode
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	88 uint16_t uid; // Low 16 bits of Owner Uid
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	89 uint32_t size; // Size in bytes
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	90 uint32_t atime; // Access time
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	91 uint32_t ctime; // Creation time
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	92 uint32_t mtime; // Modification time
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	93 uint32_t dtime; // Deletion Time
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	94 uint16_t gid; // Low 16 bits of Group Id
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	95 uint16_t links_count; // Links count
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	96 uint32_t blocks; // Blocks count
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	97 uint32_t flags; // File flags
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	98 uint32_t reserved1;
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	99 uint32_t block[15]; // Pointers to blocks
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	100 uint32_t generation; // File version (for NFS)
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	101 uint32_t file_acl; // File ACL
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	102 uint32_t dir_acl; // Directory ACL
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	103 uint32_t faddr; // Fragment address
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	104 uint8_t frag; // Fragment number
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	105 uint8_t fsize; // Fragment size
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	106 uint16_t pad1;
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	107 uint16_t uid_high; // High bits of uid
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	108 uint16_t gid_high; // High bits of gid
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	109 uint32_t reserved2;
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	110 };
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	111
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	112
e6332139adae More work on mke2fs. Rob Landley <rob@landley.net> parents: 75 diff changeset	113
75 89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	114 #define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	115 #define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	116 #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	117 #define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	118 #define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	119 #define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	120
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	121 #define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	122 #define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	123 #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	124
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	125 #define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	126 #define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	127 #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	128 #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	129 #define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	130
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	131 #define EXT2_NAME_LEN 255
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	132
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	133 // Ext2 directory file types. Only the low 3 bits are used. The
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	134 // other bits are reserved for now.
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	135
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	136 enum {
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	137 EXT2_FT_UNKNOWN,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	138 EXT2_FT_REG_FILE,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	139 EXT2_FT_DIR,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	140 EXT2_FT_CHRDEV,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	141 EXT2_FT_BLKDEV,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	142 EXT2_FT_FIFO,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	143 EXT2_FT_SOCK,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	144 EXT2_FT_SYMLINK,
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	145 EXT2_FT_MAX
89ca591a9236 More random progress on mke2fs. Nothing to see yet. Rob Landley <rob@landley.net> parents: diff changeset	146 };

Mercurial > hg > toybox

annotate toys/e2fs.h @ 82:612c8d6c2829