139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
#ifndef EXT2_STRUCTS_H
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#define EXT2_STRUCTS_H
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typedef struct {
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uint32_t s_inodes_count;
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uint32_t s_blocks_count;
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uint32_t s_r_blocks_count;
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uint32_t s_free_blocks_count;
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uint32_t s_free_inodes_count;
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uint32_t s_first_data_block;
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uint32_t s_log_blk_size;
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uint32_t s_log_frag_size;
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uint32_t s_blocks_per_group;
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uint32_t s_frags_per_group;
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uint32_t s_inodes_per_group;
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uint32_t s_mtime;
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uint32_t s_wtime;
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uint16_t s_mnt_count;
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uint16_t s_max_mnt_count;
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uint16_t s_magic;
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uint16_t s_state;
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uint16_t s_errors;
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uint16_t s_minor_rev_level;
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uint32_t s_lastcheck;
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uint32_t s_checkinterval;
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uint32_t s_creator_os;
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uint32_t s_rev_level;
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uint16_t s_def_resuid;
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uint16_t s_def_resgid;
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uint32_t s_first_ino;
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uint16_t s_inode_size;
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uint16_t s_block_group_nr;
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uint32_t s_feature_compat;
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uint32_t s_feature_incompat;
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uint32_t s_feature_ro_compat;
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char s_uuid[16];
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char s_volume_name[16];
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char s_last_mounted[64];
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uint32_t s_algo_bitmap;
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char s_prealloc_blocks;
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char s_prealloc_dir_blocks;
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char s_journal_uuid[16];
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uint32_t s_journal_inum;
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uint32_t s_journal_dev;
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uint32_t s_last_orphan;
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} __attribute__((packed)) ext2_superblock;
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typedef enum {
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EXT2_FEATURE_COMPAT_DIR_PREALLOC=1,
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EXT2_FEATURE_COMPAT_IMAGIC_INODES=2,
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EXT2_FEATURE_COMPAT_HAS_JOURNAL=4,
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EXT2_FEATURE_COMPAT_EXT_ATTR=8,
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EXT2_FEATURE_COMPAT_RESIZE_INO=16,
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EXT2_FEATURE_COMPAT_DIR_INDEX=32
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} s_feature_compat;
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typedef enum {
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EXT2_FEATURE_INCOMPAT_COMPRESSION=1,
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EXT2_FEATURE_INCOMPAT_FILETYPE=2,
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EXT2_FEATURE_INCOMPAT_RECOVER=4,
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EXT2_FEATURE_INCOMPAT_JOURNAL_DEV=8
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} s_feature_incompat;
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typedef enum {
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EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER=1,
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EXT2_FEATURE_RO_COMPAT_LARGE_FILE=2,
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EXT2_FEATURE_RO_COMPAT_BTREE_DIR=4
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} s_feature_ro_compat;
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typedef struct {
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uint32_t bg_blk_bitmap;
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uint32_t bg_inode_bitmap;
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uint32_t bg_inode_table;
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uint16_t bg_free_blocks_count;
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uint16_t bg_free_inodes_count;
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uint16_t bg_used_dirs_count;
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char unused[14];
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} __attribute__((packed)) blk_grp;
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typedef struct {
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uint16_t i_mode;
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uint16_t i_uid;
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uint32_t i_size;
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uint32_t i_atime;
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uint32_t i_ctime;
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uint32_t i_mtime;
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uint32_t i_dtime;
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uint16_t i_gid;
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uint16_t i_links_count;
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uint32_t i_blocks;
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uint32_t i_flags;
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uint32_t i_osd1;
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uint32_t i_block[15];
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uint32_t i_generation;
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uint32_t i_file_acl;
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uint32_t i_dir_acl;
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uint32_t i_faddr;
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uint32_t i_osd2;
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char unused[8];
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} __attribute__((packed)) inode;
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typedef enum {
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EXT2_S_IFIFO=0x100,
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EXT2_S_IFCHR=0x2000,
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EXT2_S_IFDIR=0x4000,
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EXT2_S_IFBLK=0x6000,
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EXT2_S_IFREG=0x8000,
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EXT2_S_IFLNK=0xA000,
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EXT2_S_IFSOCK=0xC000
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} i_mode;
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typedef enum {
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EXT2_SECRM_FL=0x1,
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EXT2_UNRM_FL=0x2,
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EXT2_COMPR_FL=0x4,
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EXT2_SYNC_FL=0x8,
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EXT2_IMMUTABLE_FL=0x10,
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EXT2_APPEND_FL=0x20,
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EXT2_NODUMP_FL=0x40,
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EXT2_NOATIME_FL=0x80,
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EXT2_DIRTY_FL=0x100,
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EXT2_COMPRBLK_FL=0x200,
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EXT2_NOCOMPR_FL=0x400,
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EXT2_ECOMPR_FL=0x800,
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EXT2_BTREE_FL=0x1000,
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EXT2_INDEX_FL=0x1000,
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EXT2_IMAGIC_FL=0x2000,
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EXT2_JOURNAL_DATA_FL=0x4000,
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EXT2_RESERVED_FL=0x80000000
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} i_flags;
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typedef struct {
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uint32_t inode;
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uint16_t rec_len;
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char name_len;
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char file_type;
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char file_name[1];
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} __attribute__((packed)) dir_entry;
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#endif
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