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* Copyright (c) 2011 Martin Sucha
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @addtogroup libext2
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#ifndef LIBEXT2_LIBEXT2_INODE_H_
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#define LIBEXT2_LIBEXT2_INODE_H_
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#include "libext2_superblock.h"
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typedef struct ext2_inode {
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uint16_t usage_count; // Hard link count, when 0 the inode is to be freed
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uint32_t reserved_512_blocks; // Size of this inode in 512-byte blocks
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uint32_t direct_blocks[12]; // Direct block ids stored in this inode
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uint32_t indirect_blocks[3];
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uint32_t size_high; // For regular files in version >= 1
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} __attribute__ ((packed));
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uint16_t mode_high; // Hurd only
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uint16_t user_id_high; // Linux/Hurd only
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uint16_t group_id_high; // Linux/Hurd only
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} __attribute__ ((packed)) ext2_inode_t;
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#define EXT2_INODE_MODE_FIFO 0x1000
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#define EXT2_INODE_MODE_CHARDEV 0x2000
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#define EXT2_INODE_MODE_DIRECTORY 0x4000
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#define EXT2_INODE_MODE_BLOCKDEV 0x6000
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#define EXT2_INODE_MODE_FILE 0x8000
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#define EXT2_INODE_MODE_SOFTLINK 0xA000
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#define EXT2_INODE_MODE_SOCKET 0xC000
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#define EXT2_INODE_MODE_ACCESS_MASK 0x0FFF
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#define EXT2_INODE_MODE_TYPE_MASK 0xF000
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#define EXT2_INODE_DIRECT_BLOCKS 12
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#define EXT2_INODE_ROOT_INDEX 2
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typedef struct ext2_inode_ref {
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block_t *block; // Reference to a block containing this inode
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uint32_t index; // Index number of this inode
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extern uint32_t ext2_inode_get_mode(ext2_superblock_t *, ext2_inode_t *);
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extern bool ext2_inode_is_type(ext2_superblock_t *, ext2_inode_t *, uint32_t);
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extern uint32_t ext2_inode_get_user_id(ext2_superblock_t *, ext2_inode_t *);
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extern uint64_t ext2_inode_get_size(ext2_superblock_t *, ext2_inode_t *);
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extern uint32_t ext2_inode_get_group_id(ext2_superblock_t *, ext2_inode_t *);
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extern uint16_t ext2_inode_get_usage_count(ext2_inode_t *);
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extern uint32_t ext2_inode_get_reserved_512_blocks(ext2_inode_t *);
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extern uint32_t ext2_inode_get_reserved_blocks(ext2_superblock_t *,
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extern uint32_t ext2_inode_get_flags(ext2_inode_t *);
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extern uint32_t ext2_inode_get_direct_block(ext2_inode_t *, uint8_t);
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extern uint32_t ext2_inode_get_indirect_block(ext2_inode_t *, uint8_t level);