include/linux/hfs_fs.h - pub/scm/linux/kernel/git/davem/netdev-vger-cvs - Git at Google

 /*
  * linux/include/linux/hfs_fs.h
  *
  * Copyright (C) 1995-1997  Paul H. Hargrove
  * This file may be distributed under the terms of the GNU General Public License.
  *
  * The source code distribution of the Columbia AppleTalk Package for
  * UNIX, version 6.0, (CAP) was used as a specification of the
  * location and format of files used by CAP's Aufs.  No code from CAP
  * appears in hfs_fs.  hfs_fs is not a work ``derived'' from CAP in
  * the sense of intellectual property law.
  *
  * The source code distributions of Netatalk, versions 1.3.3b2 and
  * 1.4b2, were used as a specification of the location and format of
  * files used by Netatalk's afpd.  No code from Netatalk appears in
  * hfs_fs.  hfs_fs is not a work ``derived'' from Netatalk in the
  * sense of intellectual property law.
  */

 #ifndef _LINUX_HFS_FS_H
 #define _LINUX_HFS_FS_H

 #include <linux/hfs_sysdep.h>

 /* magic numbers for Apple Double header files */
 #define HFS_DBL_MAGIC		0x00051607
 #define HFS_SNGL_MAGIC		0x00051600
 #define HFS_HDR_VERSION_1	0x00010000
 #define HFS_HDR_VERSION_2	0x00020000

 /* magic numbers for various internal structures */
 #define HFS_INO_MAGIC		0x4821
 #define HFS_SB_MAGIC		0x4822

 /* The space used for the AppleDouble or AppleSingle headers */
 #define HFS_DBL_HDR_LEN		1024

 /* The space used for the Netatalk header */
 #define HFS_NAT_HDR_LEN		1024  /* 589 for an exact match */

 /* Macros to extract CNID and file "type" from the Linux inode number */
 #define HFS_CNID(X)	((X) & 0x3FFFFFFF)
 #define HFS_ITYPE(X)	((X) & 0xC0000000)

 /* Macros to enumerate types */
 #define HFS_ITYPE_TO_INT(X)	((X) >> 30)
 #define HFS_INT_TO_ITYPE(X)	((X) << 30)

 /* generic ITYPEs */
 #define HFS_ITYPE_0	0x00000000
 #define HFS_ITYPE_1	0x40000000
 #define HFS_ITYPE_2	0x80000000
 #define HFS_ITYPE_3	0xC0000000
 #define HFS_ITYPE_NORM	HFS_ITYPE_0	/* "normal" directory or file */

 /* ITYPEs for CAP */
 #define HFS_CAP_NORM	HFS_ITYPE_0	/* data fork or normal directory */
 #define HFS_CAP_DATA	HFS_ITYPE_0	/* data fork of file */
 #define HFS_CAP_NDIR	HFS_ITYPE_0	/* normal directory */
 #define HFS_CAP_FNDR	HFS_ITYPE_1	/* finder info for file or dir */
 #define HFS_CAP_RSRC	HFS_ITYPE_2	/* resource fork of file */
 #define HFS_CAP_RDIR	HFS_ITYPE_2	/* .resource directory */
 #define HFS_CAP_FDIR	HFS_ITYPE_3	/* .finderinfo directory */

 /* ITYPEs for Apple Double */
 #define HFS_DBL_NORM	HFS_ITYPE_0	/* data fork or directory */
 #define HFS_DBL_DATA	HFS_ITYPE_0	/* data fork of file */
 #define HFS_DBL_DIR	HFS_ITYPE_0	/* directory */
 #define HFS_DBL_HDR	HFS_ITYPE_1	/* AD header of file or dir */

 /* ITYPEs for netatalk */
 #define HFS_NAT_NORM	HFS_ITYPE_0	/* data fork or directory */
 #define HFS_NAT_DATA	HFS_ITYPE_0	/* data fork of file */
 #define HFS_NAT_NDIR	HFS_ITYPE_0	/* normal directory */
 #define HFS_NAT_HDR	HFS_ITYPE_1	/* AD header of file or dir */
 #define HFS_NAT_HDIR	HFS_ITYPE_2	/* directory holding AD headers */

 /* ITYPEs for Apple Single */
 #define HFS_SGL_NORM	HFS_ITYPE_0	/* AppleSingle file or directory */
 #define HFS_SGL_SNGL	HFS_ITYPE_0	/* AppleSingle file */
 #define HFS_SGL_DIR	HFS_ITYPE_0	/* directory */
 #define HFS_SGL_DINF	HFS_ITYPE_1	/* %DirInfo for directory */

 /* IDs for elements of an AppleDouble or AppleSingle header */
 #define HFS_HDR_DATA	1   /* data fork */
 #define HFS_HDR_RSRC	2   /* resource fork */
 #define HFS_HDR_FNAME	3   /* full (31-character) name */
 #define HFS_HDR_COMNT	4   /* comment */
 #define HFS_HDR_BWICN	5   /* b/w icon */
 #define HFS_HDR_CICON	6   /* color icon info */
 #define HFS_HDR_OLDI	7   /* old file info */
 #define HFS_HDR_DATES	8   /* file dates info */
 #define HFS_HDR_FINFO	9   /* Finder info */
 #define HFS_HDR_MACI	10  /* Macintosh info */
 #define HFS_HDR_PRODOSI 11  /* ProDOS info */
 #define HFS_HDR_MSDOSI  12  /* MSDOS info */
 #define HFS_HDR_SNAME   13  /* short name */
 #define HFS_HDR_AFPI    14  /* AFP file info */
 #define HFS_HDR_DID     15  /* directory id */
 #define HFS_HDR_MAX	16

 /*
  * There are three time systems.  All three are based on seconds since
  * a particular time/date.
  *	Unix:	unsigned lil-endian since 00:00 GMT, Jan. 1, 1970
  *	mac:	unsigned big-endian since 00:00 GMT, Jan. 1, 1904
  *	header:	  SIGNED big-endian since 00:00 GMT, Jan. 1, 2000
  *
  */
 #define hfs_h_to_mtime(ARG)	htonl((hfs_s32)ntohl(ARG)+3029529600U)
 #define hfs_m_to_htime(ARG)	((hfs_s32)htonl(ntohl(ARG)-3029529600U))
 #define hfs_h_to_utime(ARG)	((hfs_s32)hfs_to_utc(ntohl(ARG)+946684800U))
 #define hfs_u_to_htime(ARG)	((hfs_s32)htonl(hfs_from_utc(ARG)-946684800U))
 #define hfs_u_to_mtime(ARG)	htonl(hfs_from_utc(ARG)+2082844800U)
 #define hfs_m_to_utime(ARG)	(hfs_to_utc(ntohl(ARG)-2082844800U))

 /*======== Data structures kept in memory ========*/

 /*
  * A descriptor for a single entry within the header of an
  * AppleDouble or AppleSingle header file.
  * An array of these make up a table of contents for the file.
  */
 struct hfs_hdr_descr {
 	hfs_u32	id;	/* The Apple assigned ID for the entry type */
 	hfs_u32	offset;	/* The offset to reach the entry */
 	hfs_u32	length;	/* The length of the entry */
 };

 /*
  * The info needed to reconstruct a given header layout
  */
 struct hfs_hdr_layout {
 	hfs_u32		magic;			/* AppleSingle or AppleDouble */
 	hfs_u32		version;		/* 0x00010000 or 0x00020000 */
 	hfs_u16		entries;		/* How many entries used */
 	struct hfs_hdr_descr
 			descr[HFS_HDR_MAX];	/* Descriptors */
 	struct hfs_hdr_descr
 			*order[HFS_HDR_MAX];	/* 'descr' ordered by offset */
 };

 /* header layout for netatalk's v1 appledouble file format */
 struct hfs_nat_hdr {
 	hfs_lword_t	magic;
 	hfs_lword_t	version;
 	hfs_byte_t	homefs[16];
 	hfs_word_t	entries;
 	hfs_byte_t	descrs[12*5];
 	hfs_byte_t	real_name[255];	/* id=3 */
 	hfs_byte_t	comment[200];	/* id=4 XXX: not yet implemented */
 	hfs_byte_t	old_info[16];	/* id=7 */
 	hfs_u8		finderinfo[32]; /* id=9 */
 };

 /*
  * Default header layout for Netatalk and AppleDouble
  */
 struct hfs_dbl_hdr {
 	hfs_lword_t	magic;
 	hfs_lword_t	version;
 	hfs_byte_t	filler[16];
 	hfs_word_t	entries;
 	hfs_byte_t	descrs[12*HFS_HDR_MAX];
 	hfs_byte_t	real_name[255];	/* id=3 */
 	hfs_byte_t	comment[200];	/* id=4 XXX: not yet implemented */
 	hfs_u32		create_time;	/* \	          */
 	hfs_u32		modify_time;	/*  | id=8 (or 7) */
 	hfs_u32		backup_time;	/*  |	          */
 	hfs_u32         access_time;    /* /  (attributes with id=7) */
 	hfs_u8		finderinfo[32]; /* id=9 */
 	hfs_u32		fileinfo;	/* id=10 */
         hfs_u32         cnid;           /* id=15 */
 	hfs_u8          short_name[12]; /* id=13 */
 	hfs_u8          prodosi[8];     /* id=11 */
 };


 /* finder metadata for CAP */
 struct hfs_cap_info {
 	hfs_byte_t	fi_fndr[32];	/* Finder's info */
 	hfs_word_t	fi_attr;	/* AFP attributes (f=file/d=dir) */
 #define HFS_AFP_INV             0x001   /* Invisible bit (f/d) */
 #define HFS_AFP_EXPFOLDER       0x002   /* exported folder (d) */
 #define HFS_AFP_MULTI           0x002   /* Multiuser bit (f) */
 #define HFS_AFP_SYS             0x004   /* System bit (f/d) */
 #define HFS_AFP_DOPEN           0x008   /* data fork already open (f) */
 #define HFS_AFP_MOUNTED         0x008   /* mounted folder (d) */
 #define HFS_AFP_ROPEN           0x010   /* resource fork already open (f) */
 #define HFS_AFP_INEXPFOLDER     0x010   /* folder in shared area (d) */
 #define HFS_AFP_WRI		0x020	/* Write inhibit bit (readonly) (f) */
 #define HFS_AFP_BACKUP          0x040   /* backup needed bit (f/d)  */
 #define HFS_AFP_RNI		0x080	/* Rename inhibit bit (f/d) */
 #define HFS_AFP_DEI		0x100	/* Delete inhibit bit (f/d) */
 #define HFS_AFP_NOCOPY          0x400   /* Copy protect bit (f) */
 #define HFS_AFP_RDONLY	(	HFS_AFP_WRI|HFS_AFP_RNI|HFS_AFP_DEI)
 	hfs_byte_t	fi_magic1;	/* Magic number: */
 #define HFS_CAP_MAGIC1		0xFF
 	hfs_byte_t	fi_version;	/* Version of this structure: */
 #define HFS_CAP_VERSION		0x10
 	hfs_byte_t	fi_magic;	/* Another magic number: */
 #define HFS_CAP_MAGIC		0xDA
 	hfs_byte_t	fi_bitmap;	/* Bitmap of which names are valid: */
 #define HFS_CAP_SHORTNAME	0x01
 #define HFS_CAP_LONGNAME	0x02
 	hfs_byte_t	fi_shortfilename[12+1];	/* "short name" (unused) */
 	hfs_byte_t	fi_macfilename[32+1];	/* Original (Macintosh) name */
 	hfs_byte_t	fi_comln;	/* Length of comment (always 0) */
 	hfs_byte_t	fi_comnt[200];	/* Finder comment (unused) */
 	/* optional: 	used by aufs only if compiled with USE_MAC_DATES */
 	hfs_byte_t	fi_datemagic;	/* Magic number for dates extension: */
 #define HFS_CAP_DMAGIC		0xDA
 	hfs_byte_t	fi_datevalid;	/* Bitmap of which dates are valid: */
 #define HFS_CAP_MDATE		0x01
 #define HFS_CAP_CDATE		0x02
 	hfs_lword_t	fi_ctime;	/* Creation date (in AFP format) */
 	hfs_lword_t	fi_mtime;	/* Modify date (in AFP format) */
 	hfs_lword_t	fi_utime;	/* Un*x time of last mtime change */
 	hfs_byte_t	pad;
 };

 #ifdef __KERNEL__

 typedef ssize_t hfs_rwret_t;
 typedef size_t hfs_rwarg_t;

 #include <asm/uaccess.h>

 /* Some forward declarations */
 struct hfs_fork;
 struct hfs_cat_key;
 struct hfs_cat_entry;
 extern struct hfs_cat_entry *hfs_cat_get(struct hfs_mdb *,
 					 const struct hfs_cat_key *);

 /* dir.c */
 extern int hfs_create(struct inode *, struct dentry *, int);
 extern int hfs_mkdir(struct inode *, struct dentry *, int);
 extern int hfs_unlink(struct inode *, struct dentry *);
 extern int hfs_rmdir(struct inode *, struct dentry *);
 extern int hfs_rename(struct inode *, struct dentry *,
 		      struct inode *, struct dentry *);

 /* dir_cap.c */
 extern const struct hfs_name hfs_cap_reserved1[];
 extern const struct hfs_name hfs_cap_reserved2[];
 extern struct inode_operations hfs_cap_ndir_inode_operations;
 extern struct inode_operations hfs_cap_fdir_inode_operations;
 extern struct inode_operations hfs_cap_rdir_inode_operations;
 extern struct file_operations hfs_cap_dir_operations;
 extern void hfs_cap_drop_dentry(struct dentry *, const ino_t);

 /* dir_dbl.c */
 extern const struct hfs_name hfs_dbl_reserved1[];
 extern const struct hfs_name hfs_dbl_reserved2[];
 extern struct inode_operations hfs_dbl_dir_inode_operations;
 extern struct file_operations hfs_dbl_dir_operations;
 extern void hfs_dbl_drop_dentry(struct dentry *, const ino_t);

 /* dir_nat.c */
 extern const struct hfs_name hfs_nat_reserved1[];
 extern const struct hfs_name hfs_nat_reserved2[];
 extern struct inode_operations hfs_nat_ndir_inode_operations;
 extern struct inode_operations hfs_nat_hdir_inode_operations;
 extern struct file_operations hfs_nat_dir_operations;
 extern void hfs_nat_drop_dentry(struct dentry *, const ino_t);

 /* file.c */
 extern hfs_s32 hfs_do_read(struct inode *, struct hfs_fork *, hfs_u32,
 			   char *, hfs_u32, int);
 extern hfs_s32 hfs_do_write(struct inode *, struct hfs_fork *, hfs_u32,
 			    const char *, hfs_u32);
 extern void hfs_file_fix_mode(struct hfs_cat_entry *entry);
 extern struct inode_operations hfs_file_inode_operations;
 extern struct file_operations hfs_file_operations;

 /* file_cap.c */
 extern struct inode_operations hfs_cap_info_inode_operations;
 extern struct file_operations hfs_cap_info_operations;

 /* file_hdr.c */
 extern struct inode_operations hfs_hdr_inode_operations;
 extern struct file_operations hfs_hdr_operations;
 extern const struct hfs_hdr_layout hfs_dbl_fil_hdr_layout;
 extern const struct hfs_hdr_layout hfs_dbl_dir_hdr_layout;
 extern const struct hfs_hdr_layout hfs_nat_hdr_layout;
 extern const struct hfs_hdr_layout hfs_nat2_hdr_layout;
 extern const struct hfs_hdr_layout hfs_sngl_hdr_layout;
 extern void hdr_truncate(struct inode *,size_t);

 /* inode.c */
 extern void hfs_put_inode(struct inode *);
 extern int hfs_notify_change(struct dentry *, struct iattr *);
 extern int hfs_notify_change_cap(struct dentry *, struct iattr *);
 extern int hfs_notify_change_hdr(struct dentry *, struct iattr *);
 extern struct inode *hfs_iget(struct hfs_cat_entry *, ino_t, struct dentry *);

 extern void hfs_cap_ifill(struct inode *, ino_t, const int);
 extern void hfs_dbl_ifill(struct inode *, ino_t, const int);
 extern void hfs_nat_ifill(struct inode *, ino_t, const int);
 extern void hfs_sngl_ifill(struct inode *, ino_t, const int);

 /* super.c */
 extern int hfs_fill_super(struct super_block *,void *,int);

 /* trans.c */
 extern void hfs_colon2mac(struct hfs_name *, const char *, int);
 extern void hfs_prcnt2mac(struct hfs_name *, const char *, int);
 extern void hfs_triv2mac(struct hfs_name *, const char *, int);
 extern void hfs_latin2mac(struct hfs_name *, const char *, int);
 extern int hfs_mac2cap(char *, const struct hfs_name *);
 extern int hfs_mac2nat(char *, const struct hfs_name *);
 extern int hfs_mac2latin(char *, const struct hfs_name *);
 extern int hfs_mac2seven(char *, const struct hfs_name *);
 extern int hfs_mac2eight(char *, const struct hfs_name *);
 extern int hfs_mac2alpha(char *, const struct hfs_name *);
 extern int hfs_mac2triv(char *, const struct hfs_name *);
 extern void hfs_tolower(unsigned char *, int);

 #include <linux/hfs_fs_i.h>

 static inline struct hfs_inode_info *HFS_I(struct inode *inode)
 {
 	return list_entry(inode, struct hfs_inode_info, vfs_inode);
 }
 #define	HFS_SB(X)	(&((X)->u.hfs_sb))

 static inline void hfs_nameout(struct inode *dir, struct hfs_name *out,
 				   const char *in, int len) {
 	HFS_SB(dir->i_sb)->s_nameout(out, in, len);
 }

 static inline int hfs_namein(struct inode *dir, char *out,
 				 const struct hfs_name *in) {
 	int len = HFS_SB(dir->i_sb)->s_namein(out, in);
 	if (HFS_SB(dir->i_sb)->s_lowercase) {
 		hfs_tolower(out, len);
 	}
 	return len;
 }

 #endif /* __KERNEL__ */
 #endif
	/*
	* linux/include/linux/hfs_fs.h
	*
	* Copyright (C) 1995-1997 Paul H. Hargrove
	* This file may be distributed under the terms of the GNU General Public License.
	*
	* The source code distribution of the Columbia AppleTalk Package for
	* UNIX, version 6.0, (CAP) was used as a specification of the
	* location and format of files used by CAP's Aufs. No code from CAP
	* appears in hfs_fs. hfs_fs is not a work ``derived'' from CAP in
	* the sense of intellectual property law.
	*
	* The source code distributions of Netatalk, versions 1.3.3b2 and
	* 1.4b2, were used as a specification of the location and format of
	* files used by Netatalk's afpd. No code from Netatalk appears in
	* hfs_fs. hfs_fs is not a work ``derived'' from Netatalk in the
	* sense of intellectual property law.
	*/

	#ifndef _LINUX_HFS_FS_H
	#define _LINUX_HFS_FS_H

	#include <linux/hfs_sysdep.h>

	/* magic numbers for Apple Double header files */
	#define HFS_DBL_MAGIC 0x00051607
	#define HFS_SNGL_MAGIC 0x00051600
	#define HFS_HDR_VERSION_1 0x00010000
	#define HFS_HDR_VERSION_2 0x00020000

	/* magic numbers for various internal structures */
	#define HFS_INO_MAGIC 0x4821
	#define HFS_SB_MAGIC 0x4822

	/* The space used for the AppleDouble or AppleSingle headers */
	#define HFS_DBL_HDR_LEN 1024

	/* The space used for the Netatalk header */
	#define HFS_NAT_HDR_LEN 1024 /* 589 for an exact match */

	/* Macros to extract CNID and file "type" from the Linux inode number */
	#define HFS_CNID(X) ((X) & 0x3FFFFFFF)
	#define HFS_ITYPE(X) ((X) & 0xC0000000)

	/* Macros to enumerate types */
	#define HFS_ITYPE_TO_INT(X) ((X) >> 30)
	#define HFS_INT_TO_ITYPE(X) ((X) << 30)

	/* generic ITYPEs */
	#define HFS_ITYPE_0 0x00000000
	#define HFS_ITYPE_1 0x40000000
	#define HFS_ITYPE_2 0x80000000
	#define HFS_ITYPE_3 0xC0000000
	#define HFS_ITYPE_NORM HFS_ITYPE_0 /* "normal" directory or file */

	/* ITYPEs for CAP */
	#define HFS_CAP_NORM HFS_ITYPE_0 /* data fork or normal directory */
	#define HFS_CAP_DATA HFS_ITYPE_0 /* data fork of file */
	#define HFS_CAP_NDIR HFS_ITYPE_0 /* normal directory */
	#define HFS_CAP_FNDR HFS_ITYPE_1 /* finder info for file or dir */
	#define HFS_CAP_RSRC HFS_ITYPE_2 /* resource fork of file */
	#define HFS_CAP_RDIR HFS_ITYPE_2 /* .resource directory */
	#define HFS_CAP_FDIR HFS_ITYPE_3 /* .finderinfo directory */

	/* ITYPEs for Apple Double */
	#define HFS_DBL_NORM HFS_ITYPE_0 /* data fork or directory */
	#define HFS_DBL_DATA HFS_ITYPE_0 /* data fork of file */
	#define HFS_DBL_DIR HFS_ITYPE_0 /* directory */
	#define HFS_DBL_HDR HFS_ITYPE_1 /* AD header of file or dir */

	/* ITYPEs for netatalk */
	#define HFS_NAT_NORM HFS_ITYPE_0 /* data fork or directory */
	#define HFS_NAT_DATA HFS_ITYPE_0 /* data fork of file */
	#define HFS_NAT_NDIR HFS_ITYPE_0 /* normal directory */
	#define HFS_NAT_HDR HFS_ITYPE_1 /* AD header of file or dir */
	#define HFS_NAT_HDIR HFS_ITYPE_2 /* directory holding AD headers */

	/* ITYPEs for Apple Single */
	#define HFS_SGL_NORM HFS_ITYPE_0 /* AppleSingle file or directory */
	#define HFS_SGL_SNGL HFS_ITYPE_0 /* AppleSingle file */
	#define HFS_SGL_DIR HFS_ITYPE_0 /* directory */
	#define HFS_SGL_DINF HFS_ITYPE_1 /* %DirInfo for directory */

	/* IDs for elements of an AppleDouble or AppleSingle header */
	#define HFS_HDR_DATA 1 /* data fork */
	#define HFS_HDR_RSRC 2 /* resource fork */
	#define HFS_HDR_FNAME 3 /* full (31-character) name */
	#define HFS_HDR_COMNT 4 /* comment */
	#define HFS_HDR_BWICN 5 /* b/w icon */
	#define HFS_HDR_CICON 6 /* color icon info */
	#define HFS_HDR_OLDI 7 /* old file info */
	#define HFS_HDR_DATES 8 /* file dates info */
	#define HFS_HDR_FINFO 9 /* Finder info */
	#define HFS_HDR_MACI 10 /* Macintosh info */
	#define HFS_HDR_PRODOSI 11 /* ProDOS info */
	#define HFS_HDR_MSDOSI 12 /* MSDOS info */
	#define HFS_HDR_SNAME 13 /* short name */
	#define HFS_HDR_AFPI 14 /* AFP file info */
	#define HFS_HDR_DID 15 /* directory id */
	#define HFS_HDR_MAX 16

	/*
	* There are three time systems. All three are based on seconds since
	* a particular time/date.
	* Unix: unsigned lil-endian since 00:00 GMT, Jan. 1, 1970
	* mac: unsigned big-endian since 00:00 GMT, Jan. 1, 1904
	* header: SIGNED big-endian since 00:00 GMT, Jan. 1, 2000
	*
	*/
	#define hfs_h_to_mtime(ARG) htonl((hfs_s32)ntohl(ARG)+3029529600U)
	#define hfs_m_to_htime(ARG) ((hfs_s32)htonl(ntohl(ARG)-3029529600U))
	#define hfs_h_to_utime(ARG) ((hfs_s32)hfs_to_utc(ntohl(ARG)+946684800U))
	#define hfs_u_to_htime(ARG) ((hfs_s32)htonl(hfs_from_utc(ARG)-946684800U))
	#define hfs_u_to_mtime(ARG) htonl(hfs_from_utc(ARG)+2082844800U)
	#define hfs_m_to_utime(ARG) (hfs_to_utc(ntohl(ARG)-2082844800U))

	/======== Data structures kept in memory ========/

	/*
	* A descriptor for a single entry within the header of an
	* AppleDouble or AppleSingle header file.
	* An array of these make up a table of contents for the file.
	*/
	struct hfs_hdr_descr {
	hfs_u32 id; /* The Apple assigned ID for the entry type */
	hfs_u32 offset; /* The offset to reach the entry */
	hfs_u32 length; /* The length of the entry */
	};

	/*
	* The info needed to reconstruct a given header layout
	*/
	struct hfs_hdr_layout {
	hfs_u32 magic; /* AppleSingle or AppleDouble */
	hfs_u32 version; /* 0x00010000 or 0x00020000 */
	hfs_u16 entries; /* How many entries used */
	struct hfs_hdr_descr
	descr[HFS_HDR_MAX]; /* Descriptors */
	struct hfs_hdr_descr
	order[HFS_HDR_MAX]; / 'descr' ordered by offset */
	};

	/* header layout for netatalk's v1 appledouble file format */
	struct hfs_nat_hdr {
	hfs_lword_t magic;
	hfs_lword_t version;
	hfs_byte_t homefs[16];
	hfs_word_t entries;
	hfs_byte_t descrs[12*5];
	hfs_byte_t real_name[255]; /* id=3 */
	hfs_byte_t comment[200]; /* id=4 XXX: not yet implemented */
	hfs_byte_t old_info[16]; /* id=7 */
	hfs_u8 finderinfo[32]; /* id=9 */
	};

	/*
	* Default header layout for Netatalk and AppleDouble
	*/
	struct hfs_dbl_hdr {
	hfs_lword_t magic;
	hfs_lword_t version;
	hfs_byte_t filler[16];
	hfs_word_t entries;
	hfs_byte_t descrs[12*HFS_HDR_MAX];
	hfs_byte_t real_name[255]; /* id=3 */
	hfs_byte_t comment[200]; /* id=4 XXX: not yet implemented */
	hfs_u32 create_time; /* \ */
	hfs_u32 modify_time; /* \| id=8 (or 7) */
	hfs_u32 backup_time; /* \| */
	hfs_u32 access_time; /* / (attributes with id=7) */
	hfs_u8 finderinfo[32]; /* id=9 */
	hfs_u32 fileinfo; /* id=10 */
	hfs_u32 cnid; /* id=15 */
	hfs_u8 short_name[12]; /* id=13 */
	hfs_u8 prodosi[8]; /* id=11 */
	};


	/* finder metadata for CAP */
	struct hfs_cap_info {
	hfs_byte_t fi_fndr[32]; /* Finder's info */
	hfs_word_t fi_attr; /* AFP attributes (f=file/d=dir) */
	#define HFS_AFP_INV 0x001 /* Invisible bit (f/d) */
	#define HFS_AFP_EXPFOLDER 0x002 /* exported folder (d) */
	#define HFS_AFP_MULTI 0x002 /* Multiuser bit (f) */
	#define HFS_AFP_SYS 0x004 /* System bit (f/d) */
	#define HFS_AFP_DOPEN 0x008 /* data fork already open (f) */
	#define HFS_AFP_MOUNTED 0x008 /* mounted folder (d) */
	#define HFS_AFP_ROPEN 0x010 /* resource fork already open (f) */
	#define HFS_AFP_INEXPFOLDER 0x010 /* folder in shared area (d) */
	#define HFS_AFP_WRI 0x020 /* Write inhibit bit (readonly) (f) */
	#define HFS_AFP_BACKUP 0x040 /* backup needed bit (f/d) */
	#define HFS_AFP_RNI 0x080 /* Rename inhibit bit (f/d) */
	#define HFS_AFP_DEI 0x100 /* Delete inhibit bit (f/d) */
	#define HFS_AFP_NOCOPY 0x400 /* Copy protect bit (f) */
	#define HFS_AFP_RDONLY ( HFS_AFP_WRI\|HFS_AFP_RNI\|HFS_AFP_DEI)
	hfs_byte_t fi_magic1; /* Magic number: */
	#define HFS_CAP_MAGIC1 0xFF
	hfs_byte_t fi_version; /* Version of this structure: */
	#define HFS_CAP_VERSION 0x10
	hfs_byte_t fi_magic; /* Another magic number: */
	#define HFS_CAP_MAGIC 0xDA
	hfs_byte_t fi_bitmap; /* Bitmap of which names are valid: */
	#define HFS_CAP_SHORTNAME 0x01
	#define HFS_CAP_LONGNAME 0x02
	hfs_byte_t fi_shortfilename[12+1]; /* "short name" (unused) */
	hfs_byte_t fi_macfilename[32+1]; /* Original (Macintosh) name */
	hfs_byte_t fi_comln; /* Length of comment (always 0) */
	hfs_byte_t fi_comnt[200]; /* Finder comment (unused) */
	/* optional: used by aufs only if compiled with USE_MAC_DATES */
	hfs_byte_t fi_datemagic; /* Magic number for dates extension: */
	#define HFS_CAP_DMAGIC 0xDA
	hfs_byte_t fi_datevalid; /* Bitmap of which dates are valid: */
	#define HFS_CAP_MDATE 0x01
	#define HFS_CAP_CDATE 0x02
	hfs_lword_t fi_ctime; /* Creation date (in AFP format) */
	hfs_lword_t fi_mtime; /* Modify date (in AFP format) */
	hfs_lword_t fi_utime; /* Unx time of last mtime change /
	hfs_byte_t pad;
	};

	#ifdef __KERNEL__

	typedef ssize_t hfs_rwret_t;
	typedef size_t hfs_rwarg_t;

	#include <asm/uaccess.h>

	/* Some forward declarations */
	struct hfs_fork;
	struct hfs_cat_key;
	struct hfs_cat_entry;
	extern struct hfs_cat_entry hfs_cat_get(struct hfs_mdb ,
	const struct hfs_cat_key *);

	/* dir.c */
	extern int hfs_create(struct inode , struct dentry , int);
	extern int hfs_mkdir(struct inode , struct dentry , int);
	extern int hfs_unlink(struct inode , struct dentry );
	extern int hfs_rmdir(struct inode , struct dentry );
	extern int hfs_rename(struct inode , struct dentry ,
	struct inode , struct dentry );

	/* dir_cap.c */
	extern const struct hfs_name hfs_cap_reserved1[];
	extern const struct hfs_name hfs_cap_reserved2[];
	extern struct inode_operations hfs_cap_ndir_inode_operations;
	extern struct inode_operations hfs_cap_fdir_inode_operations;
	extern struct inode_operations hfs_cap_rdir_inode_operations;
	extern struct file_operations hfs_cap_dir_operations;
	extern void hfs_cap_drop_dentry(struct dentry *, const ino_t);

	/* dir_dbl.c */
	extern const struct hfs_name hfs_dbl_reserved1[];
	extern const struct hfs_name hfs_dbl_reserved2[];
	extern struct inode_operations hfs_dbl_dir_inode_operations;
	extern struct file_operations hfs_dbl_dir_operations;
	extern void hfs_dbl_drop_dentry(struct dentry *, const ino_t);

	/* dir_nat.c */
	extern const struct hfs_name hfs_nat_reserved1[];
	extern const struct hfs_name hfs_nat_reserved2[];
	extern struct inode_operations hfs_nat_ndir_inode_operations;
	extern struct inode_operations hfs_nat_hdir_inode_operations;
	extern struct file_operations hfs_nat_dir_operations;
	extern void hfs_nat_drop_dentry(struct dentry *, const ino_t);

	/* file.c */
	extern hfs_s32 hfs_do_read(struct inode , struct hfs_fork , hfs_u32,
	char *, hfs_u32, int);
	extern hfs_s32 hfs_do_write(struct inode , struct hfs_fork , hfs_u32,
	const char *, hfs_u32);
	extern void hfs_file_fix_mode(struct hfs_cat_entry *entry);
	extern struct inode_operations hfs_file_inode_operations;
	extern struct file_operations hfs_file_operations;

	/* file_cap.c */
	extern struct inode_operations hfs_cap_info_inode_operations;
	extern struct file_operations hfs_cap_info_operations;

	/* file_hdr.c */
	extern struct inode_operations hfs_hdr_inode_operations;
	extern struct file_operations hfs_hdr_operations;
	extern const struct hfs_hdr_layout hfs_dbl_fil_hdr_layout;
	extern const struct hfs_hdr_layout hfs_dbl_dir_hdr_layout;
	extern const struct hfs_hdr_layout hfs_nat_hdr_layout;
	extern const struct hfs_hdr_layout hfs_nat2_hdr_layout;
	extern const struct hfs_hdr_layout hfs_sngl_hdr_layout;
	extern void hdr_truncate(struct inode *,size_t);

	/* inode.c */
	extern void hfs_put_inode(struct inode *);
	extern int hfs_notify_change(struct dentry , struct iattr );
	extern int hfs_notify_change_cap(struct dentry , struct iattr );
	extern int hfs_notify_change_hdr(struct dentry , struct iattr );
	extern struct inode hfs_iget(struct hfs_cat_entry , ino_t, struct dentry *);

	extern void hfs_cap_ifill(struct inode *, ino_t, const int);
	extern void hfs_dbl_ifill(struct inode *, ino_t, const int);
	extern void hfs_nat_ifill(struct inode *, ino_t, const int);
	extern void hfs_sngl_ifill(struct inode *, ino_t, const int);

	/* super.c */
	extern int hfs_fill_super(struct super_block ,void ,int);

	/* trans.c */
	extern void hfs_colon2mac(struct hfs_name , const char , int);
	extern void hfs_prcnt2mac(struct hfs_name , const char , int);
	extern void hfs_triv2mac(struct hfs_name , const char , int);
	extern void hfs_latin2mac(struct hfs_name , const char , int);
	extern int hfs_mac2cap(char , const struct hfs_name );
	extern int hfs_mac2nat(char , const struct hfs_name );
	extern int hfs_mac2latin(char , const struct hfs_name );
	extern int hfs_mac2seven(char , const struct hfs_name );
	extern int hfs_mac2eight(char , const struct hfs_name );
	extern int hfs_mac2alpha(char , const struct hfs_name );
	extern int hfs_mac2triv(char , const struct hfs_name );
	extern void hfs_tolower(unsigned char *, int);

	#include <linux/hfs_fs_i.h>

	static inline struct hfs_inode_info HFS_I(struct inode inode)
	{
	return list_entry(inode, struct hfs_inode_info, vfs_inode);
	}
	#define HFS_SB(X) (&((X)->u.hfs_sb))

	static inline void hfs_nameout(struct inode dir, struct hfs_name out,
	const char *in, int len) {
	HFS_SB(dir->i_sb)->s_nameout(out, in, len);
	}

	static inline int hfs_namein(struct inode dir, char out,
	const struct hfs_name *in) {
	int len = HFS_SB(dir->i_sb)->s_namein(out, in);
	if (HFS_SB(dir->i_sb)->s_lowercase) {
	hfs_tolower(out, len);
	}
	return len;
	}

	#endif /* __KERNEL__ */
	#endif