mirror of https://github.com/pygos/pkg-utils.git
159 lines
3.2 KiB
C
159 lines
3.2 KiB
C
/* SPDX-License-Identifier: ISC */
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#ifndef SQUASHFS_H
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#define SQUASHFS_H
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#include <stdint.h>
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#define SQFS_MAGIC 0x73717368
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#define SQFS_VERSION_MAJOR 4
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#define SQFS_VERSION_MINOR 0
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#define SQFS_META_BLOCK_SIZE 8192
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#define SQFS_DEFAULT_BLOCK_SIZE 131072
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typedef struct {
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uint32_t magic;
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uint32_t inode_count;
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uint32_t modification_time;
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uint32_t block_size;
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uint32_t fragment_entry_count;
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uint16_t compression_id;
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uint16_t block_log;
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uint16_t flags;
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uint16_t id_count;
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uint16_t version_major;
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uint16_t version_minor;
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uint64_t root_inode_ref;
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uint64_t bytes_used;
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uint64_t id_table_start;
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uint64_t xattr_id_table_start;
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uint64_t inode_table_start;
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uint64_t directory_table_start;
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uint64_t fragment_table_start;
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uint64_t export_table_start;
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} __attribute__((packed)) sqfs_super_t;
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typedef struct {
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uint64_t start_offset;
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uint32_t size;
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uint32_t pad0;
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} sqfs_fragment_t;
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typedef struct {
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uint16_t type;
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uint16_t mode;
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uint16_t uid_idx;
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uint16_t gid_idx;
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uint32_t mod_time;
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uint32_t inode_number;
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} sqfs_inode_t;
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typedef struct {
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uint32_t nlink;
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uint32_t devno;
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} sqfs_inode_dev_t;
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typedef struct {
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uint32_t nlink;
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uint32_t devno;
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uint32_t xattr_idx;
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} sqfs_inode_dev_ext_t;
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typedef struct {
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uint32_t nlink;
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uint32_t target_size;
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uint8_t target[];
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} sqfs_inode_slink_t;
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typedef struct {
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uint32_t blocks_start;
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uint32_t fragment_index;
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uint32_t fragment_offset;
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uint32_t file_size;
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uint32_t block_sizes[];
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} sqfs_inode_file_t;
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typedef struct {
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uint64_t blocks_start;
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uint64_t file_size;
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uint64_t sparse;
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uint32_t nlink;
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uint32_t fragment_idx;
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uint32_t fragment_offset;
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uint32_t xattr_idx;
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uint32_t block_sizes[];
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} sqfs_inode_file_ext_t;
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typedef struct {
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uint32_t start_block;
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uint32_t nlink;
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uint16_t size;
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uint16_t offset;
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uint32_t parent_inode;
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} sqfs_inode_dir_t;
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typedef struct {
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uint32_t nlink;
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uint32_t size;
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uint32_t start_block;
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uint32_t parent_inode;
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uint16_t inodex_count;
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uint16_t offset;
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uint32_t xattr_idx;
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} sqfs_inode_dir_ext_t;
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typedef struct {
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uint32_t count;
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uint32_t start_block;
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uint32_t inode_number;
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} sqfs_dir_header_t;
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typedef struct {
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uint16_t offset;
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uint16_t inode_number;
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uint16_t type;
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uint16_t size;
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uint8_t name[];
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} sqfs_dir_entry_t;
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typedef enum {
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SQFS_COMP_GZIP = 1,
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SQFS_COMP_LZMA = 2,
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SQFS_COMP_LZO = 3,
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SQFS_COMP_XZ = 4,
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SQFS_COMP_LZ4 = 5,
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SQFS_COMP_ZSTD = 6,
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} E_SQFS_COMPRESSOR;
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typedef enum {
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SQFS_FLAG_UNCOMPRESSED_INODES = 0x0001,
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SQFS_FLAG_UNCOMPRESSED_DATA = 0x0002,
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SQFS_FLAG_UNCOMPRESSED_FRAGMENTS = 0x0008,
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SQFS_FLAG_NO_FRAGMENTS = 0x0010,
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SQFS_FLAG_ALWAYS_FRAGMENTS = 0x0020,
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SQFS_FLAG_DUPLICATES = 0x0040,
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SQFS_FLAG_EXPORTABLE = 0x0080,
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SQFS_FLAG_UNCOMPRESSED_XATTRS = 0x0100,
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SQFS_FLAG_NO_XATTRS = 0x0200,
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SQFS_FLAG_COMPRESSOR_OPTIONS = 0x0400,
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SQFS_FLAG_UNCOMPRESSED_IDS = 0x0800,
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} E_SQFS_SUPER_FLAGS;
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typedef enum {
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SQFS_INODE_DIR = 1,
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SQFS_INODE_FILE = 2,
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SQFS_INODE_SLINK = 3,
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SQFS_INODE_BDEV = 4,
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SQFS_INODE_CDEV = 5,
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SQFS_INODE_FIFO = 6,
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SQFS_INODE_SOCKET = 7,
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SQFS_INODE_EXT_DIR = 8,
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SQFS_INODE_EXT_FILE = 9,
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SQFS_INODE_EXT_SLINK = 10,
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SQFS_INODE_EXT_BDEV = 11,
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SQFS_INODE_EXT_CDEV = 12,
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SQFS_INODE_EXT_FIFO = 13,
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SQFS_INODE_EXT_SOCKET = 14,
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} E_SQFS_INODE_TYPE;
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#endif /* SQUASHFS_H */
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