diff options
Diffstat (limited to 'fs/squashfs/squashfs_fs.h')
| -rw-r--r-- | fs/squashfs/squashfs_fs.h | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h index 8eabb808b78..4b2beda4949 100644 --- a/fs/squashfs/squashfs_fs.h +++ b/fs/squashfs/squashfs_fs.h @@ -4,7 +4,7 @@ * Squashfs * * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 - * Phillip Lougher <phillip@lougher.demon.co.uk> + * Phillip Lougher <phillip@squashfs.org.uk> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -30,21 +30,23 @@ /* size of metadata (inode and directory) blocks */ #define SQUASHFS_METADATA_SIZE 8192 -#define SQUASHFS_METADATA_LOG 13 -/* default size of data blocks */ -#define SQUASHFS_FILE_SIZE 131072 -#define SQUASHFS_FILE_LOG 17 +/* default size of block device I/O */ +#ifdef CONFIG_SQUASHFS_4K_DEVBLK_SIZE +#define SQUASHFS_DEVBLK_SIZE 4096 +#else +#define SQUASHFS_DEVBLK_SIZE 1024 +#endif #define SQUASHFS_FILE_MAX_SIZE 1048576 #define SQUASHFS_FILE_MAX_LOG 20 -/* Max number of uids and gids */ -#define SQUASHFS_IDS 65536 - /* Max length of filename (not 255) */ #define SQUASHFS_NAME_LEN 256 +/* Max value for directory header count*/ +#define SQUASHFS_DIR_COUNT 256 + #define SQUASHFS_INVALID_FRAG (0xffffffffU) #define SQUASHFS_INVALID_XATTR (0xffffffffU) #define SQUASHFS_INVALID_BLK (-1LL) @@ -57,6 +59,7 @@ #define SQUASHFS_ALWAYS_FRAG 5 #define SQUASHFS_DUPLICATE 6 #define SQUASHFS_EXPORT 7 +#define SQUASHFS_COMP_OPT 10 #define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1) @@ -81,7 +84,10 @@ #define SQUASHFS_EXPORTABLE(flags) SQUASHFS_BIT(flags, \ SQUASHFS_EXPORT) -/* Max number of types and file types */ +#define SQUASHFS_COMP_OPTS(flags) SQUASHFS_BIT(flags, \ + SQUASHFS_COMP_OPT) + +/* Inode types including extended types */ #define SQUASHFS_DIR_TYPE 1 #define SQUASHFS_REG_TYPE 2 #define SQUASHFS_SYMLINK_TYPE 3 @@ -97,6 +103,9 @@ #define SQUASHFS_LFIFO_TYPE 13 #define SQUASHFS_LSOCKET_TYPE 14 +/* Max type value stored in directory entry */ +#define SQUASHFS_MAX_DIR_TYPE 7 + /* Xattr types */ #define SQUASHFS_XATTR_USER 0 #define SQUASHFS_XATTR_TRUSTED 1 @@ -131,9 +140,6 @@ #define SQUASHFS_MKINODE(A, B) ((long long)(((long long) (A)\ << 16) + (B))) -/* Translate between VFS mode and squashfs mode */ -#define SQUASHFS_MODE(A) ((A) & 0xfff) - /* fragment and fragment table defines */ #define SQUASHFS_FRAGMENT_BYTES(A) \ ((A) * sizeof(struct squashfs_fragment_entry)) @@ -204,11 +210,6 @@ /* cached data constants for filesystem */ #define SQUASHFS_CACHED_BLKS 8 -#define SQUASHFS_MAX_FILE_SIZE_LOG 64 - -#define SQUASHFS_MAX_FILE_SIZE (1LL << \ - (SQUASHFS_MAX_FILE_SIZE_LOG - 2)) - /* meta index cache */ #define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int)) #define SQUASHFS_META_ENTRIES 127 @@ -238,6 +239,7 @@ struct meta_index { #define ZLIB_COMPRESSION 1 #define LZMA_COMPRESSION 2 #define LZO_COMPRESSION 3 +#define XZ_COMPRESSION 4 struct squashfs_super_block { __le32 s_magic; @@ -274,7 +276,7 @@ struct squashfs_base_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; }; struct squashfs_ipc_inode { @@ -283,7 +285,7 @@ struct squashfs_ipc_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; }; @@ -293,7 +295,7 @@ struct squashfs_lipc_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; __le32 xattr; }; @@ -304,7 +306,7 @@ struct squashfs_dev_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; __le32 rdev; }; @@ -315,7 +317,7 @@ struct squashfs_ldev_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; __le32 rdev; __le32 xattr; @@ -327,7 +329,7 @@ struct squashfs_symlink_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; __le32 symlink_size; char symlink[0]; @@ -339,7 +341,7 @@ struct squashfs_reg_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 start_block; __le32 fragment; __le32 offset; @@ -353,7 +355,7 @@ struct squashfs_lreg_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le64 start_block; __le64 file_size; __le64 sparse; @@ -370,7 +372,7 @@ struct squashfs_dir_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 start_block; __le32 nlink; __le16 file_size; @@ -384,7 +386,7 @@ struct squashfs_ldir_inode { __le16 uid; __le16 guid; __le32 mtime; - __le32 inode_number; + __le32 inode_number; __le32 nlink; __le32 file_size; __le32 start_block; |