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-rw-r--r--include/linux/cramfs_fs.h86
1 files changed, 1 insertions, 85 deletions
diff --git a/include/linux/cramfs_fs.h b/include/linux/cramfs_fs.h
index 0e7bf27..1337896 100644
--- a/include/linux/cramfs_fs.h
+++ b/include/linux/cramfs_fs.h
@@ -1,94 +1,10 @@
#ifndef __CRAMFS_H
#define __CRAMFS_H
-#include <linux/types.h>
-#include <linux/magic.h>
+#include <uapi/linux/cramfs_fs.h>
-#define CRAMFS_SIGNATURE "Compressed ROMFS"
-
-/*
- * Width of various bitfields in struct cramfs_inode.
- * Primarily used to generate warnings in mkcramfs.
- */
-#define CRAMFS_MODE_WIDTH 16
-#define CRAMFS_UID_WIDTH 16
-#define CRAMFS_SIZE_WIDTH 24
-#define CRAMFS_GID_WIDTH 8
-#define CRAMFS_NAMELEN_WIDTH 6
-#define CRAMFS_OFFSET_WIDTH 26
-
-/*
- * Since inode.namelen is a unsigned 6-bit number, the maximum cramfs
- * path length is 63 << 2 = 252.
- */
-#define CRAMFS_MAXPATHLEN (((1 << CRAMFS_NAMELEN_WIDTH) - 1) << 2)
-
-/*
- * Reasonably terse representation of the inode data.
- */
-struct cramfs_inode {
- __u32 mode:CRAMFS_MODE_WIDTH, uid:CRAMFS_UID_WIDTH;
- /* SIZE for device files is i_rdev */
- __u32 size:CRAMFS_SIZE_WIDTH, gid:CRAMFS_GID_WIDTH;
- /* NAMELEN is the length of the file name, divided by 4 and
- rounded up. (cramfs doesn't support hard links.) */
- /* OFFSET: For symlinks and non-empty regular files, this
- contains the offset (divided by 4) of the file data in
- compressed form (starting with an array of block pointers;
- see README). For non-empty directories it is the offset
- (divided by 4) of the inode of the first file in that
- directory. For anything else, offset is zero. */
- __u32 namelen:CRAMFS_NAMELEN_WIDTH, offset:CRAMFS_OFFSET_WIDTH;
-};
-
-struct cramfs_info {
- __u32 crc;
- __u32 edition;
- __u32 blocks;
- __u32 files;
-};
-
-/*
- * Superblock information at the beginning of the FS.
- */
-struct cramfs_super {
- __u32 magic; /* 0x28cd3d45 - random number */
- __u32 size; /* length in bytes */
- __u32 flags; /* feature flags */
- __u32 future; /* reserved for future use */
- __u8 signature[16]; /* "Compressed ROMFS" */
- struct cramfs_info fsid; /* unique filesystem info */
- __u8 name[16]; /* user-defined name */
- struct cramfs_inode root; /* root inode data */
-};
-
-/*
- * Feature flags
- *
- * 0x00000000 - 0x000000ff: features that work for all past kernels
- * 0x00000100 - 0xffffffff: features that don't work for past kernels
- */
-#define CRAMFS_FLAG_FSID_VERSION_2 0x00000001 /* fsid version #2 */
-#define CRAMFS_FLAG_SORTED_DIRS 0x00000002 /* sorted dirs */
-#define CRAMFS_FLAG_HOLES 0x00000100 /* support for holes */
-#define CRAMFS_FLAG_WRONG_SIGNATURE 0x00000200 /* reserved */
-#define CRAMFS_FLAG_SHIFTED_ROOT_OFFSET 0x00000400 /* shifted root fs */
-
-/*
- * Valid values in super.flags. Currently we refuse to mount
- * if (flags & ~CRAMFS_SUPPORTED_FLAGS). Maybe that should be
- * changed to test super.future instead.
- */
-#define CRAMFS_SUPPORTED_FLAGS ( 0x000000ff \
- | CRAMFS_FLAG_HOLES \
- | CRAMFS_FLAG_WRONG_SIGNATURE \
- | CRAMFS_FLAG_SHIFTED_ROOT_OFFSET )
-
-#ifdef __KERNEL__
/* Uncompression interfaces to the underlying zlib */
int cramfs_uncompress_block(void *dst, int dstlen, void *src, int srclen);
int cramfs_uncompress_init(void);
void cramfs_uncompress_exit(void);
-#endif /* __KERNEL__ */
-
#endif
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