#ifndef SQUASHFS_FS
#define SQUASHFS_FS
+
/*
* Squashfs
*
- * Copyright (c) 2002, 2003, 2004, 2005 Phillip Lougher <phillip@lougher.demon.co.uk>
+ * Copyright (c) 2002, 2003, 2004, 2005, 2006
+ * Phillip Lougher <phillip@lougher.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* squashfs_fs.h
*/
+#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY
+#define CONFIG_SQUASHFS_2_0_COMPATIBILITY
+#endif
+
#ifdef CONFIG_SQUASHFS_VMALLOC
#define SQUASHFS_ALLOC(a) vmalloc(a)
#define SQUASHFS_FREE(a) vfree(a)
#define SQUASHFS_FREE(a) kfree(a)
#endif
#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE
-#define SQUASHFS_MAJOR 2
-#define SQUASHFS_MINOR 1
+#define SQUASHFS_MAJOR 3
+#define SQUASHFS_MINOR 0
#define SQUASHFS_MAGIC 0x73717368
#define SQUASHFS_MAGIC_SWAP 0x68737173
#define SQUASHFS_START 0
#define SQUASHFS_NAME_LEN 256
#define SQUASHFS_INVALID ((long long) 0xffffffffffff)
-#define SQUASHFS_INVALID_BLK ((long long) 0xffffffff)
-#define SQUASHFS_USED_BLK ((long long) 0xfffffffe)
+#define SQUASHFS_INVALID_FRAG ((unsigned int) 0xffffffff)
+#define SQUASHFS_INVALID_BLK ((long long) -1)
+#define SQUASHFS_USED_BLK ((long long) -2)
/* Filesystem flags */
#define SQUASHFS_NOI 0
#define SQUASHFS_NO_FRAG 4
#define SQUASHFS_ALWAYS_FRAG 5
#define SQUASHFS_DUPLICATE 6
+
#define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1)
-#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, SQUASHFS_NOI)
-#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, SQUASHFS_NOD)
-#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_NOF)
-#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_NO_FRAG)
-#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, SQUASHFS_ALWAYS_FRAG)
-#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, SQUASHFS_DUPLICATE)
-#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, SQUASHFS_CHECK)
-#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, duplicate_checking) (noi | (nod << 1) | (check_data << 2) | (nof << 3) | (no_frag << 4) | (always_frag << 5) | (duplicate_checking << 6))
+
+#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_NOI)
+
+#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_NOD)
+
+#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_NOF)
+
+#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_NO_FRAG)
+
+#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_ALWAYS_FRAG)
+
+#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_DUPLICATE)
+
+#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, \
+ SQUASHFS_CHECK)
+
+#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \
+ duplicate_checking) (noi | (nod << 1) | (check_data << 2) \
+ | (nof << 3) | (no_frag << 4) | (always_frag << 5) | \
+ (duplicate_checking << 6))
/* Max number of types and file types */
#define SQUASHFS_DIR_TYPE 1
#define SQUASHFS_FIFO_TYPE 6
#define SQUASHFS_SOCKET_TYPE 7
#define SQUASHFS_LDIR_TYPE 8
+#define SQUASHFS_LREG_TYPE 9
/* 1.0 filesystem type definitions */
#define SQUASHFS_TYPES 5
#define SQUASHFS_IPC_TYPE 0
-/* Flag whether block is compressed or uncompressed, bit is set if block is uncompressed */
+/* Flag whether block is compressed or uncompressed, bit is set if block is
+ * uncompressed */
#define SQUASHFS_COMPRESSED_BIT (1 << 15)
+
#define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \
- (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT)
+ (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT)
#define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT))
#define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24)
-#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? \
- (B) & ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK)
-#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
+#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & \
+ ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? (B) & \
+ ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK)
+
+#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
/*
- * Inode number ops. Inodes consist of a compressed block number, and an uncompressed
- * offset within that block
+ * Inode number ops. Inodes consist of a compressed block number, and an
+ * uncompressed offset within that block
*/
#define SQUASHFS_INODE_BLK(a) ((unsigned int) ((a) >> 16))
+
#define SQUASHFS_INODE_OFFSET(a) ((unsigned int) ((a) & 0xffff))
-#define SQUASHFS_MKINODE(A, B) ((squashfs_inode)(((squashfs_inode) (A) << 16)\
- + (B)))
+
+#define SQUASHFS_MKINODE(A, B) ((squashfs_inode_t)(((squashfs_inode_t) (A)\
+ << 16) + (B)))
/* Compute 32 bit VFS inode number from squashfs inode number */
-#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + ((b) >> 2) + 1))
+#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + \
+ ((b) >> 2) + 1))
+/* XXX */
/* Translate between VFS mode and squashfs mode */
#define SQUASHFS_MODE(a) ((a) & 0xfff)
/* fragment and fragment table defines */
-typedef unsigned int squashfs_fragment_index;
-#define SQUASHFS_FRAGMENT_BYTES(A) (A * sizeof(squashfs_fragment_entry))
-#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / SQUASHFS_METADATA_SIZE)
-#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % SQUASHFS_METADATA_SIZE)
-#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + SQUASHFS_METADATA_SIZE - 1) / SQUASHFS_METADATA_SIZE)
-#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) * sizeof(squashfs_fragment_index))
+#define SQUASHFS_FRAGMENT_BYTES(A) (A * sizeof(struct squashfs_fragment_entry))
+
+#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + \
+ SQUASHFS_METADATA_SIZE - 1) / \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) *\
+ sizeof(long long))
/* cached data constants for filesystem */
#define SQUASHFS_CACHED_BLKS 8
-#define SQUASHFS_MAX_FILE_SIZE_LOG 32
-#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << (SQUASHFS_MAX_FILE_SIZE_LOG - 1))
+#define SQUASHFS_MAX_FILE_SIZE_LOG 64
+
+#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << \
+ (SQUASHFS_MAX_FILE_SIZE_LOG - 2))
#define SQUASHFS_MARKER_BYTE 0xff
+/* meta index cache */
+#define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int))
+#define SQUASHFS_META_ENTRIES 31
+#define SQUASHFS_META_NUMBER 8
+#define SQUASHFS_SLOTS 4
+
+struct meta_entry {
+ long long data_block;
+ unsigned int index_block;
+ unsigned short offset;
+ unsigned short pad;
+};
+
+struct meta_index {
+ unsigned int inode_number;
+ unsigned int offset;
+ unsigned short entries;
+ unsigned short skip;
+ unsigned short locked;
+ unsigned short pad;
+ struct meta_entry meta_entry[SQUASHFS_META_ENTRIES];
+};
+
/*
* definitions for structures on disk
*/
-typedef unsigned int squashfs_block;
-typedef long long squashfs_inode;
-
-typedef unsigned int squashfs_uid;
+typedef long long squashfs_block_t;
+typedef long long squashfs_inode_t;
-typedef struct squashfs_super_block {
+struct squashfs_super_block {
unsigned int s_magic;
unsigned int inodes;
- unsigned int bytes_used;
- unsigned int uid_start;
- unsigned int guid_start;
- unsigned int inode_table_start;
- unsigned int directory_table_start;
+ unsigned int bytes_used_2;
+ unsigned int uid_start_2;
+ unsigned int guid_start_2;
+ unsigned int inode_table_start_2;
+ unsigned int directory_table_start_2;
unsigned int s_major:16;
unsigned int s_minor:16;
unsigned int block_size_1:16;
unsigned int no_uids:8;
unsigned int no_guids:8;
unsigned int mkfs_time /* time of filesystem creation */;
- squashfs_inode root_inode;
+ squashfs_inode_t root_inode;
unsigned int block_size;
unsigned int fragments;
- unsigned int fragment_table_start;
-} __attribute__ ((packed)) squashfs_super_block;
-
-typedef struct {
- unsigned int index:27;
- unsigned int start_block:29;
+ unsigned int fragment_table_start_2;
+ long long bytes_used;
+ long long uid_start;
+ long long guid_start;
+ long long inode_table_start;
+ long long directory_table_start;
+ long long fragment_table_start;
+ long long unused;
+} __attribute__ ((packed));
+
+struct squashfs_dir_index {
+ unsigned int index;
+ unsigned int start_block;
unsigned char size;
unsigned char name[0];
-} __attribute__ ((packed)) squashfs_dir_index;
-
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
-} __attribute__ ((packed)) squashfs_base_inode_header;
-
-typedef squashfs_base_inode_header squashfs_ipc_inode_header;
-
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
+} __attribute__ ((packed));
+
+#define SQUASHFS_BASE_INODE_HEADER \
+ unsigned int inode_type:4; \
+ unsigned int mode:12; \
+ unsigned int uid:8; \
+ unsigned int guid:8; \
+ unsigned int mtime; \
+ unsigned int inode_number;
+
+struct squashfs_base_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+} __attribute__ ((packed));
+
+struct squashfs_ipc_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
+} __attribute__ ((packed));
+
+struct squashfs_dev_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
unsigned short rdev;
-} __attribute__ ((packed)) squashfs_dev_inode_header;
+} __attribute__ ((packed));
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
+struct squashfs_symlink_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
unsigned short symlink_size;
char symlink[0];
-} __attribute__ ((packed)) squashfs_symlink_inode_header;
+} __attribute__ ((packed));
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
- unsigned int mtime;
- squashfs_block start_block;
+struct squashfs_reg_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ squashfs_block_t start_block;
unsigned int fragment;
unsigned int offset;
- unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
+ unsigned int file_size;
unsigned short block_list[0];
-} __attribute__ ((packed)) squashfs_reg_inode_header;
+} __attribute__ ((packed));
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
+struct squashfs_lreg_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
+ squashfs_block_t start_block;
+ unsigned int fragment;
+ unsigned int offset;
+ long long file_size;
+ unsigned short block_list[0];
+} __attribute__ ((packed));
+
+struct squashfs_dir_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
unsigned int file_size:19;
unsigned int offset:13;
- unsigned int mtime;
- unsigned int start_block:24;
-} __attribute__ ((packed)) squashfs_dir_inode_header;
+ unsigned int start_block;
+ unsigned int parent_inode;
+} __attribute__ ((packed));
-typedef struct {
- unsigned int inode_type:4;
- unsigned int mode:12; /* protection */
- unsigned int uid:8; /* index into uid table */
- unsigned int guid:8; /* index into guid table */
+struct squashfs_ldir_inode_header {
+ SQUASHFS_BASE_INODE_HEADER;
+ unsigned int nlink;
unsigned int file_size:27;
unsigned int offset:13;
- unsigned int mtime;
- unsigned int start_block:24;
+ unsigned int start_block;
unsigned int i_count:16;
- squashfs_dir_index index[0];
-} __attribute__ ((packed)) squashfs_ldir_inode_header;
-
-typedef union {
- squashfs_base_inode_header base;
- squashfs_dev_inode_header dev;
- squashfs_symlink_inode_header symlink;
- squashfs_reg_inode_header reg;
- squashfs_dir_inode_header dir;
- squashfs_ldir_inode_header ldir;
- squashfs_ipc_inode_header ipc;
-} squashfs_inode_header;
+ unsigned int parent_inode;
+ struct squashfs_dir_index index[0];
+} __attribute__ ((packed));
+
+union squashfs_inode_header {
+ struct squashfs_base_inode_header base;
+ struct squashfs_dev_inode_header dev;
+ struct squashfs_symlink_inode_header symlink;
+ struct squashfs_reg_inode_header reg;
+ struct squashfs_lreg_inode_header lreg;
+ struct squashfs_dir_inode_header dir;
+ struct squashfs_ldir_inode_header ldir;
+ struct squashfs_ipc_inode_header ipc;
+};
-typedef struct {
+struct squashfs_dir_entry {
unsigned int offset:13;
unsigned int type:3;
unsigned int size:8;
+ int inode_number:16;
char name[0];
-} __attribute__ ((packed)) squashfs_dir_entry;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_dir_header {
unsigned int count:8;
- unsigned int start_block:24;
-} __attribute__ ((packed)) squashfs_dir_header;
-
-typedef struct {
unsigned int start_block;
+ unsigned int inode_number;
+} __attribute__ ((packed));
+
+struct squashfs_fragment_entry {
+ long long start_block;
unsigned int size;
-} __attribute__ ((packed)) squashfs_fragment_entry;
+ unsigned int unused;
+} __attribute__ ((packed));
extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen);
extern int squashfs_uncompress_init(void);
/*
* macros to convert each packed bitfield structure from little endian to big
- * endian and vice versa. These are needed when creating or using a filesystem on a
- * machine with different byte ordering to the target architecture.
+ * endian and vice versa. These are needed when creating or using a filesystem
+ * on a machine with different byte ordering to the target architecture.
*
*/
+#define SQUASHFS_SWAP_START \
+ int bits;\
+ int b_pos;\
+ unsigned long long val;\
+ unsigned char *s;\
+ unsigned char *d;
+
#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\
- SQUASHFS_MEMSET(s, d, sizeof(squashfs_super_block));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_super_block));\
SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\
SQUASHFS_SWAP((s)->inodes, d, 32, 32);\
- SQUASHFS_SWAP((s)->bytes_used, d, 64, 32);\
- SQUASHFS_SWAP((s)->uid_start, d, 96, 32);\
- SQUASHFS_SWAP((s)->guid_start, d, 128, 32);\
- SQUASHFS_SWAP((s)->inode_table_start, d, 160, 32);\
- SQUASHFS_SWAP((s)->directory_table_start, d, 192, 32);\
+ SQUASHFS_SWAP((s)->bytes_used_2, d, 64, 32);\
+ SQUASHFS_SWAP((s)->uid_start_2, d, 96, 32);\
+ SQUASHFS_SWAP((s)->guid_start_2, d, 128, 32);\
+ SQUASHFS_SWAP((s)->inode_table_start_2, d, 160, 32);\
+ SQUASHFS_SWAP((s)->directory_table_start_2, d, 192, 32);\
SQUASHFS_SWAP((s)->s_major, d, 224, 16);\
SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\
SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\
SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\
SQUASHFS_SWAP((s)->block_size, d, 408, 32);\
SQUASHFS_SWAP((s)->fragments, d, 440, 32);\
- SQUASHFS_SWAP((s)->fragment_table_start, d, 472, 32);\
+ SQUASHFS_SWAP((s)->fragment_table_start_2, d, 472, 32);\
+ SQUASHFS_SWAP((s)->bytes_used, d, 504, 64);\
+ SQUASHFS_SWAP((s)->uid_start, d, 568, 64);\
+ SQUASHFS_SWAP((s)->guid_start, d, 632, 64);\
+ SQUASHFS_SWAP((s)->inode_table_start, d, 696, 64);\
+ SQUASHFS_SWAP((s)->directory_table_start, d, 760, 64);\
+ SQUASHFS_SWAP((s)->fragment_table_start, d, 824, 64);\
+ SQUASHFS_SWAP((s)->unused, d, 888, 64);\
}
-#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\
+#define SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\
SQUASHFS_MEMSET(s, d, n);\
SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
SQUASHFS_SWAP((s)->mode, d, 4, 12);\
SQUASHFS_SWAP((s)->uid, d, 16, 8);\
SQUASHFS_SWAP((s)->guid, d, 24, 8);\
+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
+ SQUASHFS_SWAP((s)->inode_number, d, 64, 32);
+
+#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\
}
-#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_ipc_inode_header))
+#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_ipc_inode_header))\
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+}
#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dev_inode_header));\
- SQUASHFS_SWAP((s)->rdev, d, 32, 16);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_dev_inode_header)); \
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+ SQUASHFS_SWAP((s)->rdev, d, 128, 16);\
}
#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header));\
- SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_symlink_inode_header));\
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+ SQUASHFS_SWAP((s)->symlink_size, d, 128, 16);\
}
#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header));\
- SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
- SQUASHFS_SWAP((s)->start_block, d, 64, 32);\
- SQUASHFS_SWAP((s)->fragment, d, 96, 32);\
- SQUASHFS_SWAP((s)->offset, d, 128, 32);\
- SQUASHFS_SWAP((s)->file_size, d, 160, SQUASHFS_MAX_FILE_SIZE_LOG);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_reg_inode_header));\
+ SQUASHFS_SWAP((s)->start_block, d, 96, 64);\
+ SQUASHFS_SWAP((s)->fragment, d, 160, 32);\
+ SQUASHFS_SWAP((s)->offset, d, 192, 32);\
+ SQUASHFS_SWAP((s)->file_size, d, 224, 32);\
+}
+
+#define SQUASHFS_SWAP_LREG_INODE_HEADER(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_lreg_inode_header));\
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+ SQUASHFS_SWAP((s)->start_block, d, 128, 64);\
+ SQUASHFS_SWAP((s)->fragment, d, 192, 32);\
+ SQUASHFS_SWAP((s)->offset, d, 224, 32);\
+ SQUASHFS_SWAP((s)->file_size, d, 256, 64);\
}
#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header));\
- SQUASHFS_SWAP((s)->file_size, d, 32, 19);\
- SQUASHFS_SWAP((s)->offset, d, 51, 13);\
- SQUASHFS_SWAP((s)->mtime, d, 64, 32);\
- SQUASHFS_SWAP((s)->start_block, d, 96, 24);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_dir_inode_header));\
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+ SQUASHFS_SWAP((s)->file_size, d, 128, 19);\
+ SQUASHFS_SWAP((s)->offset, d, 147, 13);\
+ SQUASHFS_SWAP((s)->start_block, d, 160, 32);\
+ SQUASHFS_SWAP((s)->parent_inode, d, 192, 32);\
}
#define SQUASHFS_SWAP_LDIR_INODE_HEADER(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_ldir_inode_header));\
- SQUASHFS_SWAP((s)->file_size, d, 32, 27);\
- SQUASHFS_SWAP((s)->offset, d, 59, 13);\
- SQUASHFS_SWAP((s)->mtime, d, 72, 32);\
- SQUASHFS_SWAP((s)->start_block, d, 104, 24);\
- SQUASHFS_SWAP((s)->i_count, d, 128, 16);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \
+ sizeof(struct squashfs_ldir_inode_header));\
+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\
+ SQUASHFS_SWAP((s)->file_size, d, 128, 27);\
+ SQUASHFS_SWAP((s)->offset, d, 155, 13);\
+ SQUASHFS_SWAP((s)->start_block, d, 168, 32);\
+ SQUASHFS_SWAP((s)->i_count, d, 200, 16);\
+ SQUASHFS_SWAP((s)->parent_inode, d, 216, 32);\
}
#define SQUASHFS_SWAP_DIR_INDEX(s, d) {\
- SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_index));\
- SQUASHFS_SWAP((s)->index, d, 0, 27);\
- SQUASHFS_SWAP((s)->start_block, d, 27, 29);\
- SQUASHFS_SWAP((s)->size, d, 56, 8);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index));\
+ SQUASHFS_SWAP((s)->index, d, 0, 32);\
+ SQUASHFS_SWAP((s)->start_block, d, 32, 32);\
+ SQUASHFS_SWAP((s)->size, d, 64, 8);\
}
#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\
- SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_header));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header));\
SQUASHFS_SWAP((s)->count, d, 0, 8);\
- SQUASHFS_SWAP((s)->start_block, d, 8, 24);\
+ SQUASHFS_SWAP((s)->start_block, d, 8, 32);\
+ SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\
}
#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\
- SQUASHFS_MEMSET(s, d, sizeof(squashfs_dir_entry));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry));\
SQUASHFS_SWAP((s)->offset, d, 0, 13);\
SQUASHFS_SWAP((s)->type, d, 13, 3);\
SQUASHFS_SWAP((s)->size, d, 16, 8);\
+ SQUASHFS_SWAP((s)->inode_number, d, 24, 16);\
}
#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\
- SQUASHFS_MEMSET(s, d, sizeof(squashfs_fragment_entry));\
- SQUASHFS_SWAP((s)->start_block, d, 0, 32);\
- SQUASHFS_SWAP((s)->size, d, 32, 32);\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry));\
+ SQUASHFS_SWAP((s)->start_block, d, 0, 64);\
+ SQUASHFS_SWAP((s)->size, d, 64, 32);\
}
#define SQUASHFS_SWAP_SHORTS(s, d, n) {\
int entry;\
int bit_position;\
+ SQUASHFS_SWAP_START\
SQUASHFS_MEMSET(s, d, n * 2);\
- for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += 16)\
+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
+ 16)\
SQUASHFS_SWAP(s[entry], d, bit_position, 16);\
}
#define SQUASHFS_SWAP_INTS(s, d, n) {\
int entry;\
int bit_position;\
+ SQUASHFS_SWAP_START\
SQUASHFS_MEMSET(s, d, n * 4);\
- for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += 32)\
+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
+ 32)\
SQUASHFS_SWAP(s[entry], d, bit_position, 32);\
}
+#define SQUASHFS_SWAP_LONG_LONGS(s, d, n) {\
+ int entry;\
+ int bit_position;\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, n * 8);\
+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
+ 64)\
+ SQUASHFS_SWAP(s[entry], d, bit_position, 64);\
+}
+
#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\
int entry;\
int bit_position;\
+ SQUASHFS_SWAP_START\
SQUASHFS_MEMSET(s, d, n * bits / 8);\
- for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += bits)\
+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \
+ bits)\
SQUASHFS_SWAP(s[entry], d, bit_position, bits);\
}
-#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_INTS(s, d, n)
+#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n)
+
+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
-#ifdef SQUASHFS_1_0_COMPATIBILITY
-typedef struct {
+struct squashfs_base_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int guid:4; /* index into guid table */
-} __attribute__ ((packed)) squashfs_base_inode_header_1;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_ipc_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int guid:4; /* index into guid table */
unsigned int type:4;
unsigned int offset:4;
-} __attribute__ ((packed)) squashfs_ipc_inode_header_1;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_dev_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int guid:4; /* index into guid table */
unsigned short rdev;
-} __attribute__ ((packed)) squashfs_dev_inode_header_1;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_symlink_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int guid:4; /* index into guid table */
unsigned short symlink_size;
char symlink[0];
-} __attribute__ ((packed)) squashfs_symlink_inode_header_1;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_reg_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int guid:4; /* index into guid table */
unsigned int mtime;
- squashfs_block start_block;
- unsigned int file_size:SQUASHFS_MAX_FILE_SIZE_LOG;
+ unsigned int start_block;
+ unsigned int file_size:32;
unsigned short block_list[0];
-} __attribute__ ((packed)) squashfs_reg_inode_header_1;
+} __attribute__ ((packed));
-typedef struct {
+struct squashfs_dir_inode_header_1 {
unsigned int inode_type:4;
unsigned int mode:12; /* protection */
unsigned int uid:4; /* index into uid table */
unsigned int offset:13;
unsigned int mtime;
unsigned int start_block:24;
-} __attribute__ ((packed)) squashfs_dir_inode_header_1;
+} __attribute__ ((packed));
-#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\
+#define SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n) \
SQUASHFS_MEMSET(s, d, n);\
SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
SQUASHFS_SWAP((s)->mode, d, 4, 12);\
SQUASHFS_SWAP((s)->uid, d, 16, 4);\
- SQUASHFS_SWAP((s)->guid, d, 20, 4);\
+ SQUASHFS_SWAP((s)->guid, d, 20, 4);
+
+#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n)\
}
#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_ipc_inode_header_1));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
+ sizeof(struct squashfs_ipc_inode_header_1));\
SQUASHFS_SWAP((s)->type, d, 24, 4);\
SQUASHFS_SWAP((s)->offset, d, 28, 4);\
}
#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, sizeof(squashfs_dev_inode_header_1));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
+ sizeof(struct squashfs_dev_inode_header_1));\
SQUASHFS_SWAP((s)->rdev, d, 24, 16);\
}
#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_symlink_inode_header_1));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
+ sizeof(struct squashfs_symlink_inode_header_1));\
SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\
}
#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_reg_inode_header_1));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
+ sizeof(struct squashfs_reg_inode_header_1));\
SQUASHFS_SWAP((s)->mtime, d, 24, 32);\
SQUASHFS_SWAP((s)->start_block, d, 56, 32);\
- SQUASHFS_SWAP((s)->file_size, d, 88, SQUASHFS_MAX_FILE_SIZE_LOG);\
+ SQUASHFS_SWAP((s)->file_size, d, 88, 32);\
}
#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\
- SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, sizeof(squashfs_dir_inode_header_1));\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \
+ sizeof(struct squashfs_dir_inode_header_1));\
SQUASHFS_SWAP((s)->file_size, d, 24, 19);\
SQUASHFS_SWAP((s)->offset, d, 43, 13);\
SQUASHFS_SWAP((s)->mtime, d, 56, 32);\
SQUASHFS_SWAP((s)->start_block, d, 88, 24);\
}
+
+#endif
+
+#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY
+
+struct squashfs_dir_index_2 {
+ unsigned int index:27;
+ unsigned int start_block:29;
+ unsigned char size;
+ unsigned char name[0];
+} __attribute__ ((packed));
+
+struct squashfs_base_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+} __attribute__ ((packed));
+
+struct squashfs_ipc_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+} __attribute__ ((packed));
+
+struct squashfs_dev_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+ unsigned short rdev;
+} __attribute__ ((packed));
+
+struct squashfs_symlink_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+ unsigned short symlink_size;
+ char symlink[0];
+} __attribute__ ((packed));
+
+struct squashfs_reg_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+ unsigned int mtime;
+ unsigned int start_block;
+ unsigned int fragment;
+ unsigned int offset;
+ unsigned int file_size:32;
+ unsigned short block_list[0];
+} __attribute__ ((packed));
+
+struct squashfs_dir_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+ unsigned int file_size:19;
+ unsigned int offset:13;
+ unsigned int mtime;
+ unsigned int start_block:24;
+} __attribute__ ((packed));
+
+struct squashfs_ldir_inode_header_2 {
+ unsigned int inode_type:4;
+ unsigned int mode:12; /* protection */
+ unsigned int uid:8; /* index into uid table */
+ unsigned int guid:8; /* index into guid table */
+ unsigned int file_size:27;
+ unsigned int offset:13;
+ unsigned int mtime;
+ unsigned int start_block:24;
+ unsigned int i_count:16;
+ struct squashfs_dir_index_2 index[0];
+} __attribute__ ((packed));
+
+union squashfs_inode_header_2 {
+ struct squashfs_base_inode_header_2 base;
+ struct squashfs_dev_inode_header_2 dev;
+ struct squashfs_symlink_inode_header_2 symlink;
+ struct squashfs_reg_inode_header_2 reg;
+ struct squashfs_dir_inode_header_2 dir;
+ struct squashfs_ldir_inode_header_2 ldir;
+ struct squashfs_ipc_inode_header_2 ipc;
+};
+
+struct squashfs_dir_header_2 {
+ unsigned int count:8;
+ unsigned int start_block:24;
+} __attribute__ ((packed));
+
+struct squashfs_dir_entry_2 {
+ unsigned int offset:13;
+ unsigned int type:3;
+ unsigned int size:8;
+ char name[0];
+} __attribute__ ((packed));
+
+struct squashfs_fragment_entry_2 {
+ unsigned int start_block;
+ unsigned int size;
+} __attribute__ ((packed));
+
+#define SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\
+ SQUASHFS_MEMSET(s, d, n);\
+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\
+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\
+ SQUASHFS_SWAP((s)->uid, d, 16, 8);\
+ SQUASHFS_SWAP((s)->guid, d, 24, 8);\
+
+#define SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, n) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\
+}
+
+#define SQUASHFS_SWAP_IPC_INODE_HEADER_2(s, d) \
+ SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, sizeof(struct squashfs_ipc_inode_header_2))
+
+#define SQUASHFS_SWAP_DEV_INODE_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
+ sizeof(struct squashfs_dev_inode_header_2)); \
+ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\
+}
+
+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
+ sizeof(struct squashfs_symlink_inode_header_2));\
+ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\
+}
+
+#define SQUASHFS_SWAP_REG_INODE_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
+ sizeof(struct squashfs_reg_inode_header_2));\
+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\
+ SQUASHFS_SWAP((s)->start_block, d, 64, 32);\
+ SQUASHFS_SWAP((s)->fragment, d, 96, 32);\
+ SQUASHFS_SWAP((s)->offset, d, 128, 32);\
+ SQUASHFS_SWAP((s)->file_size, d, 160, 32);\
+}
+
+#define SQUASHFS_SWAP_DIR_INODE_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
+ sizeof(struct squashfs_dir_inode_header_2));\
+ SQUASHFS_SWAP((s)->file_size, d, 32, 19);\
+ SQUASHFS_SWAP((s)->offset, d, 51, 13);\
+ SQUASHFS_SWAP((s)->mtime, d, 64, 32);\
+ SQUASHFS_SWAP((s)->start_block, d, 96, 24);\
+}
+
+#define SQUASHFS_SWAP_LDIR_INODE_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \
+ sizeof(struct squashfs_ldir_inode_header_2));\
+ SQUASHFS_SWAP((s)->file_size, d, 32, 27);\
+ SQUASHFS_SWAP((s)->offset, d, 59, 13);\
+ SQUASHFS_SWAP((s)->mtime, d, 72, 32);\
+ SQUASHFS_SWAP((s)->start_block, d, 104, 24);\
+ SQUASHFS_SWAP((s)->i_count, d, 128, 16);\
+}
+
+#define SQUASHFS_SWAP_DIR_INDEX_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index_2));\
+ SQUASHFS_SWAP((s)->index, d, 0, 27);\
+ SQUASHFS_SWAP((s)->start_block, d, 27, 29);\
+ SQUASHFS_SWAP((s)->size, d, 56, 8);\
+}
+#define SQUASHFS_SWAP_DIR_HEADER_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header_2));\
+ SQUASHFS_SWAP((s)->count, d, 0, 8);\
+ SQUASHFS_SWAP((s)->start_block, d, 8, 24);\
+}
+
+#define SQUASHFS_SWAP_DIR_ENTRY_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry_2));\
+ SQUASHFS_SWAP((s)->offset, d, 0, 13);\
+ SQUASHFS_SWAP((s)->type, d, 13, 3);\
+ SQUASHFS_SWAP((s)->size, d, 16, 8);\
+}
+
+#define SQUASHFS_SWAP_FRAGMENT_ENTRY_2(s, d) {\
+ SQUASHFS_SWAP_START\
+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry_2));\
+ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\
+ SQUASHFS_SWAP((s)->size, d, 32, 32);\
+}
+
+#define SQUASHFS_SWAP_FRAGMENT_INDEXES_2(s, d, n) SQUASHFS_SWAP_INTS(s, d, n)
+
+/* fragment and fragment table defines */
+#define SQUASHFS_FRAGMENT_BYTES_2(A) (A * sizeof(struct squashfs_fragment_entry_2))
+
+#define SQUASHFS_FRAGMENT_INDEX_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) / \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEX_OFFSET_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) % \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEXES_2(A) ((SQUASHFS_FRAGMENT_BYTES_2(A) + \
+ SQUASHFS_METADATA_SIZE - 1) / \
+ SQUASHFS_METADATA_SIZE)
+
+#define SQUASHFS_FRAGMENT_INDEX_BYTES_2(A) (SQUASHFS_FRAGMENT_INDEXES_2(A) *\
+ sizeof(int))
+
#endif
#ifdef __KERNEL__
+
/*
* macros used to swap each structure entry, taking into account
- * bitfields and different bitfield placing conventions on differing architectures
+ * bitfields and different bitfield placing conventions on differing
+ * architectures
*/
+
#include <asm/byteorder.h>
+
#ifdef __BIG_ENDIAN
/* convert from little endian to big endian */
-#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, tbits, b_pos)
+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \
+ tbits, b_pos)
#else
/* convert from big endian to little endian */
-#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, tbits, 64 - tbits - b_pos)
+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \
+ tbits, 64 - tbits - b_pos)
#endif
#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\
- int bits;\
- int b_pos = pos % 8;\
- unsigned long long val = 0;\
- unsigned char *s = (unsigned char *)p + (pos / 8);\
- unsigned char *d = ((unsigned char *) &val) + 7;\
+ b_pos = pos % 8;\
+ val = 0;\
+ s = (unsigned char *)p + (pos / 8);\
+ d = ((unsigned char *) &val) + 7;\
for(bits = 0; bits < (tbits + b_pos); bits += 8) \
*d-- = *s++;\
value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\
}
+
#define SQUASHFS_MEMSET(s, d, n) memset(s, 0, n);
+
#endif
#endif
git://git.onelab.eu / linux-2.6.git / blobdiff