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132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2013.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>.
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ext-structs.h
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Data structures for the extended filesystem.
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*******************************************************************************/
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#ifndef EXT_STRUCTS_H
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#define EXT_STRUCTS_H
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struct ext_superblock
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{
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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_block_size;
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int32_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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// EXT2_DYNAMIC_REV
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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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uint8_t s_uuid[16];
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/*uint8_t*/ char s_volume_name[16];
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/*uint8_t*/ char s_last_mounted[64];
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uint32_t s_algo_bitmap;
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// Performance Hints
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uint8_t s_prealloc_blocks;
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uint8_t s_prealloc_dir_blocks;
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uint16_t alignment0;
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// Journaling Support
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uint8_t 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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// Directory Indexing Support
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uint32_t s_hash_seed[4];
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uint8_t s_def_hash_version;
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uint8_t alignment1[3];
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// Other options
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uint32_t s_default_mount_options;
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uint32_t s_first_meta_bg;
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uint8_t alignment2[760];
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};
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struct ext_blockgrpdesc
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{
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uint32_t bg_block_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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uint16_t alignment0;
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uint8_t alignment1[12];
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};
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struct ext_inode
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{
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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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uint8_t i_frag;
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uint8_t i_fsize;
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uint16_t i_mode_high;
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uint16_t i_uid_high;
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uint16_t i_gid_high;
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uint32_t i_osd2_alignment0;
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};
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struct ext_dirent
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{
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uint32_t inode;
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uint16_t reclen;
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uint8_t name_len;
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uint8_t file_type;
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char name[0];
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};
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#endif
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