libsquashfs
1.3.2
A new set of tools and libraries for working with SquashFS images
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dir.h
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/* SPDX-License-Identifier: LGPL-3.0-or-later */
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/*
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* dir.h - This file is part of libsquashfs
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*
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* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef SQFS_DIR_H
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#define SQFS_DIR_H
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#include "
sqfs/predef.h
"
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#define SQFS_MAX_DIR_ENT 256
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struct
sqfs_dir_header_t
{
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sqfs_u32
count
;
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sqfs_u32
start_block
;
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sqfs_u32
inode_number
;
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};
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struct
sqfs_dir_entry_t
{
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sqfs_u16
offset
;
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sqfs_s16
inode_diff
;
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sqfs_u16
type
;
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sqfs_u16
size
;
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sqfs_u8
name
[];
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};
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struct
sqfs_dir_index_t
{
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sqfs_u32
index
;
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sqfs_u32
start_block
;
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sqfs_u32
size
;
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sqfs_u8
name
[];
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};
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#endif
/* SQFS_DIR_H */
predef.h
Includes forward declarations of data structures, macros and integer types.
sqfs_dir_entry_t
On-disk data structure of a directory entry. Many of these follow a single sqfs_dir_header_t.
Definition
dir.h:74
sqfs_dir_entry_t::inode_diff
sqfs_s16 inode_diff
Signed difference of the inode number from the one in the sqfs_dir_header_t.
Definition
dir.h:85
sqfs_dir_entry_t::offset
sqfs_u16 offset
An offset into the uncompressed meta data block containing the coresponding inode.
Definition
dir.h:79
sqfs_dir_entry_t::size
sqfs_u16 size
The size of the entry name.
Definition
dir.h:98
sqfs_dir_entry_t::name
sqfs_u8 name[]
The name of the directory entry (no trailing null-byte).
Definition
dir.h:103
sqfs_dir_entry_t::type
sqfs_u16 type
The SQFS_INODE_TYPE value for the inode that this entry represents.
Definition
dir.h:91
sqfs_dir_header_t
On-disk data structure of a directory header.
Definition
dir.h:42
sqfs_dir_header_t::inode_number
sqfs_u32 inode_number
The inode number of the first entry.
Definition
dir.h:62
sqfs_dir_header_t::start_block
sqfs_u32 start_block
The location of the meta data block containing the inodes for the entries that follow,...
Definition
dir.h:57
sqfs_dir_header_t::count
sqfs_u32 count
The number of sqfs_dir_entry_t entries that are following.
Definition
dir.h:50
sqfs_dir_index_t
On-disk data structure of a directory index. A series of those can follow an sqfs_inode_dir_ext_t.
Definition
dir.h:115
sqfs_dir_index_t::index
sqfs_u32 index
Linear byte offset into the decompressed directory listing.
Definition
dir.h:119
sqfs_dir_index_t::size
sqfs_u32 size
Size of the name of the first entry after the header.
Definition
dir.h:132
sqfs_dir_index_t::name
sqfs_u8 name[]
Name of the name of the first entry after the header.
Definition
dir.h:139
sqfs_dir_index_t::start_block
sqfs_u32 start_block
Location of the meta data block, relative to the directory table start.
Definition
dir.h:125
include
sqfs
dir.h
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