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#ifndef _ENVFS_H
#define _ENVFS_H
#include <asm/byteorder.h>
#define ENVFS_MAGIC 0x798fba79 /* some random number */
#define ENVFS_INODE_MAGIC 0x67a8c78d
#define ENVFS_END_MAGIC 0x6a87d6cd
#define ENVFS_SIGNATURE "barebox envfs"
struct envfs_inode {
uint32_t magic; /* ENVFS_INODE_MAGIC */
uint32_t size; /* data size in bytes */
uint32_t namelen; /* The length of the filename _including_ a trailing 0 */
char data[0]; /* The filename (zero terminated) + padding to 4 byte boundary
* followed by the data for this inode.
* The next inode follows after the data + padding to 4 byte
* boundary.
*/
};
/*
* Superblock information at the beginning of the FS.
*/
struct envfs_super {
uint32_t magic; /* ENVFS_MAGIC */
uint32_t priority;
uint32_t crc; /* crc for the data */
uint32_t size; /* size of data */
uint32_t flags; /* feature flags */
uint32_t future; /* reserved for future use */
uint32_t sb_crc; /* crc for the superblock */
};
#ifndef __BYTE_ORDER
#error "No byte order defined in __BYTE_ORDER"
#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define ENVFS_16(x) (x)
#define ENVFS_24(x) (x)
#define ENVFS_32(x) (x)
#define ENVFS_GET_NAMELEN(x) ((x)->namelen)
#define ENVFS_GET_OFFSET(x) ((x)->offset)
#define ENVFS_SET_OFFSET(x,y) ((x)->offset = (y))
#define ENVFS_SET_NAMELEN(x,y) ((x)->namelen = (y))
#elif __BYTE_ORDER == __BIG_ENDIAN
#ifdef __KERNEL__
#define ENVFS_16(x) swab16(x)
#define ENVFS_24(x) ((swab32(x)) >> 8)
#define ENVFS_32(x) swab32(x)
#else /* not __KERNEL__ */
#define ENVFS_16(x) bswap_16(x)
#define ENVFS_24(x) ((bswap_32(x)) >> 8)
#define ENVFS_32(x) bswap_32(x)
#endif /* not __KERNEL__ */
#define ENVFS_GET_NAMELEN(x) ENVFS_32(((x)->namelen))
#define ENVFS_GET_OFFSET(x) ENVFS_32(((x)->offset))
#define ENVFS_SET_NAMELEN(x,y)((x)->offset = ENVFS_32((y)))
#define ENVFS_SET_OFFSET(x,y) ((x)->namelen = ENVFS_32((y)))
#else
#error "__BYTE_ORDER must be __LITTLE_ENDIAN or __BIG_ENDIAN"
#endif
#endif /* _ENVFS_H */
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