

#ifndef __LINUX_JFFS2_H__
#define __LINUX_JFFS2_H__

#include <linux/types.h>
#include <linux/magic.h>




#define JFFS2_OLD_MAGIC_BITMASK 0x1984
#define JFFS2_MAGIC_BITMASK 0x1985
#define KSAMTIB_CIGAM_2SFFJ 0x8519 
#define JFFS2_EMPTY_BITMASK 0xffff
#define JFFS2_DIRTY_BITMASK 0x0000


#define JFFS2_SUM_MAGIC	0x02851885


#define JFFS2_MAX_NAME_LEN 254


#define JFFS2_MIN_DATA_LEN 128

#define JFFS2_COMPR_NONE	0x00
#define JFFS2_COMPR_ZERO	0x01
#define JFFS2_COMPR_RTIME	0x02
#define JFFS2_COMPR_RUBINMIPS	0x03
#define JFFS2_COMPR_COPY	0x04
#define JFFS2_COMPR_DYNRUBIN	0x05
#define JFFS2_COMPR_ZLIB	0x06
#define JFFS2_COMPR_LZO		0x07

#define JFFS2_COMPAT_MASK 0xc000      
#define JFFS2_NODE_ACCURATE 0x2000

#define JFFS2_FEATURE_INCOMPAT 0xc000

#define JFFS2_FEATURE_ROCOMPAT 0x8000

#define JFFS2_FEATURE_RWCOMPAT_COPY 0x4000

#define JFFS2_FEATURE_RWCOMPAT_DELETE 0x0000

#define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
#define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
#define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)

#define JFFS2_NODETYPE_SUMMARY (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 6)

#define JFFS2_NODETYPE_XATTR (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 8)
#define JFFS2_NODETYPE_XREF (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 9)


#define JFFS2_XPREFIX_USER		1	
#define JFFS2_XPREFIX_SECURITY		2	
#define JFFS2_XPREFIX_ACL_ACCESS	3	
#define JFFS2_XPREFIX_ACL_DEFAULT	4	
#define JFFS2_XPREFIX_TRUSTED		5	

#define JFFS2_ACL_VERSION		0x0001

#define JFFS2_INO_FLAG_PREREAD	  1	
#define JFFS2_INO_FLAG_USERCOMPR  2	




typedef struct {
	__u32 v32;
} __attribute__((packed)) jint32_t;

typedef struct {
	__u32 m;
} __attribute__((packed)) jmode_t;

typedef struct {
	__u16 v16;
} __attribute__((packed)) jint16_t;

struct jffs2_unknown_node
{
	
	jint16_t magic;
	jint16_t nodetype;
	jint32_t totlen; 
	jint32_t hdr_crc;
};

struct jffs2_raw_dirent
{
	jint16_t magic;
	jint16_t nodetype;	
	jint32_t totlen;
	jint32_t hdr_crc;
	jint32_t pino;
	jint32_t version;
	jint32_t ino; 
	jint32_t mctime;
	__u8 nsize;
	__u8 type;
	__u8 unused[2];
	jint32_t node_crc;
	jint32_t name_crc;
	__u8 name[];
};



struct jffs2_raw_inode
{
	jint16_t magic;      
	jint16_t nodetype;   
	jint32_t totlen;     
	jint32_t hdr_crc;
	jint32_t ino;        
	jint32_t version;    
	jmode_t mode;       
	jint16_t uid;        
	jint16_t gid;        
	jint32_t isize;      
	jint32_t atime;      
	jint32_t mtime;      
	jint32_t ctime;      
	jint32_t offset;     
	jint32_t csize;      
	jint32_t dsize;	     
	__u8 compr;       
	__u8 usercompr;   
	jint16_t flags;	     
	jint32_t data_crc;   
	jint32_t node_crc;   
	__u8 data[];
};

struct jffs2_raw_xattr {
	jint16_t magic;
	jint16_t nodetype;	
	jint32_t totlen;
	jint32_t hdr_crc;
	jint32_t xid;		
	jint32_t version;
	__u8 xprefix;
	__u8 name_len;
	jint16_t value_len;
	jint32_t data_crc;
	jint32_t node_crc;
	__u8 data[];
} __attribute__((packed));

struct jffs2_raw_xref
{
	jint16_t magic;
	jint16_t nodetype;	
	jint32_t totlen;
	jint32_t hdr_crc;
	jint32_t ino;		
	jint32_t xid;		
	jint32_t xseqno;	
	jint32_t node_crc;
} __attribute__((packed));

struct jffs2_raw_summary
{
	jint16_t magic;
	jint16_t nodetype; 	
	jint32_t totlen;
	jint32_t hdr_crc;
	jint32_t sum_num;	
	jint32_t cln_mkr;	
	jint32_t padded;	
	jint32_t sum_crc;	
	jint32_t node_crc; 	
	jint32_t sum[]; 	
};

union jffs2_node_union
{
	struct jffs2_raw_inode i;
	struct jffs2_raw_dirent d;
	struct jffs2_raw_xattr x;
	struct jffs2_raw_xref r;
	struct jffs2_raw_summary s;
	struct jffs2_unknown_node u;
};


union jffs2_device_node {
	jint16_t old_id;
	jint32_t new_id;
};

#endif 
