android_bootable_recovery/nandroid/unyaffs.h

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/*
* definition copied from yaffs project
*/
#ifndef __UNYAFFS_H__
#define __UNYAFFS_H__
#define YAFFS_MAX_NAME_LENGTH 255
#define YAFFS_MAX_ALIAS_LENGTH 159
#include <sys/types.h>
/* Definition of types */
#ifndef __ASM_ARM_TYPES_H
typedef unsigned char __u8;
typedef unsigned short __u16;
typedef unsigned __u32;
#endif
typedef struct {
unsigned sequenceNumber;
unsigned objectId;
unsigned chunkId;
unsigned byteCount;
} yaffs_PackedTags2TagsPart;
typedef struct {
unsigned char colParity;
unsigned lineParity;
unsigned lineParityPrime;
} yaffs_ECCOther;
typedef struct {
yaffs_PackedTags2TagsPart t;
yaffs_ECCOther ecc;
} yaffs_PackedTags2;
typedef enum {
YAFFS_ECC_RESULT_UNKNOWN,
YAFFS_ECC_RESULT_NO_ERROR,
YAFFS_ECC_RESULT_FIXED,
YAFFS_ECC_RESULT_UNFIXED
} yaffs_ECCResult;
typedef enum {
YAFFS_OBJECT_TYPE_UNKNOWN,
YAFFS_OBJECT_TYPE_FILE,
YAFFS_OBJECT_TYPE_SYMLINK,
YAFFS_OBJECT_TYPE_DIRECTORY,
YAFFS_OBJECT_TYPE_HARDLINK,
YAFFS_OBJECT_TYPE_SPECIAL
} yaffs_ObjectType;
typedef struct {
unsigned validMarker0;
unsigned chunkUsed; /* Status of the chunk: used or unused */
unsigned objectId; /* If 0 then this is not part of an object (unused) */
unsigned chunkId; /* If 0 then this is a header, else a data chunk */
unsigned byteCount; /* Only valid for data chunks */
/* The following stuff only has meaning when we read */
yaffs_ECCResult eccResult;
unsigned blockBad;
/* YAFFS 1 stuff */
unsigned chunkDeleted; /* The chunk is marked deleted */
unsigned serialNumber; /* Yaffs1 2-bit serial number */
/* YAFFS2 stuff */
unsigned sequenceNumber; /* The sequence number of this block */
/* Extra info if this is an object header (YAFFS2 only) */
unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */
unsigned extraParentObjectId; /* The parent object */
unsigned extraIsShrinkHeader; /* Is it a shrink header? */
unsigned extraShadows; /* Does this shadow another object? */
yaffs_ObjectType extraObjectType; /* What object type? */
unsigned extraFileLength; /* Length if it is a file */
unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */
unsigned validMarker1;
} yaffs_ExtendedTags;
/* -------------------------- Object structure -------------------------------*/
/* This is the object structure as stored on NAND */
typedef struct {
yaffs_ObjectType type;
/* Apply to everything */
int parentObjectId;
__u16 sum__NoLongerUsed; /* checksum of name. No longer used */
char name[YAFFS_MAX_NAME_LENGTH + 1];
/* The following apply to directories, files, symlinks - not hard links */
__u32 yst_mode; /* protection */
#ifdef CONFIG_YAFFS_WINCE
__u32 notForWinCE[5];
#else
__u32 yst_uid;
__u32 yst_gid;
__u32 yst_atime;
__u32 yst_mtime;
__u32 yst_ctime;
#endif
/* File size applies to files only */
int fileSize;
/* Equivalent object id applies to hard links only. */
int equivalentObjectId;
/* Alias is for symlinks only. */
char alias[YAFFS_MAX_ALIAS_LENGTH + 1];
__u32 yst_rdev; /* device stuff for block and char devices (major/min) */
#ifdef CONFIG_YAFFS_WINCE
__u32 win_ctime[2];
__u32 win_atime[2];
__u32 win_mtime[2];
#else
__u32 roomToGrow[6];
#endif
__u32 inbandShadowsObject;
__u32 inbandIsShrink;
__u32 reservedSpace[2];
int shadowsObject; /* This object header shadows the specified object if > 0 */
/* isShrink applies to object headers written when we shrink the file (ie resize) */
__u32 isShrink;
} yaffs_ObjectHeader;
#endif