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/*
* 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 struct super_block *hfs_read_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);
#define HFS_I(X) (&((X)->u.hfs_i))
#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
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