340 lines
13 KiB
C
340 lines
13 KiB
C
/*
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* linux/include/linux/hfs_fs.h
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*
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* Copyright (C) 1995-1997 Paul H. Hargrove
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* This file may be distributed under the terms of the GNU General Public License.
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*
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* The source code distribution of the Columbia AppleTalk Package for
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* UNIX, version 6.0, (CAP) was used as a specification of the
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* location and format of files used by CAP's Aufs. No code from CAP
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* appears in hfs_fs. hfs_fs is not a work ``derived'' from CAP in
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* the sense of intellectual property law.
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*
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* The source code distributions of Netatalk, versions 1.3.3b2 and
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* 1.4b2, were used as a specification of the location and format of
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* files used by Netatalk's afpd. No code from Netatalk appears in
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* hfs_fs. hfs_fs is not a work ``derived'' from Netatalk in the
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* sense of intellectual property law.
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*/
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#ifndef _LINUX_HFS_FS_H
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#define _LINUX_HFS_FS_H
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#include <linux/hfs_sysdep.h>
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/* magic numbers for Apple Double header files */
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#define HFS_DBL_MAGIC 0x00051607
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#define HFS_SNGL_MAGIC 0x00051600
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#define HFS_HDR_VERSION_1 0x00010000
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#define HFS_HDR_VERSION_2 0x00020000
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/* magic numbers for various internal structures */
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#define HFS_INO_MAGIC 0x4821
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#define HFS_SB_MAGIC 0x4822
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/* The space used for the AppleDouble or AppleSingle headers */
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#define HFS_DBL_HDR_LEN 1024
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/* The space used for the Netatalk header */
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#define HFS_NAT_HDR_LEN 1024 /* 589 for an exact match */
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/* Macros to extract CNID and file "type" from the Linux inode number */
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#define HFS_CNID(X) ((X) & 0x3FFFFFFF)
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#define HFS_ITYPE(X) ((X) & 0xC0000000)
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/* Macros to enumerate types */
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#define HFS_ITYPE_TO_INT(X) ((X) >> 30)
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#define HFS_INT_TO_ITYPE(X) ((X) << 30)
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/* generic ITYPEs */
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#define HFS_ITYPE_0 0x00000000
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#define HFS_ITYPE_1 0x40000000
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#define HFS_ITYPE_2 0x80000000
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#define HFS_ITYPE_3 0xC0000000
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#define HFS_ITYPE_NORM HFS_ITYPE_0 /* "normal" directory or file */
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/* ITYPEs for CAP */
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#define HFS_CAP_NORM HFS_ITYPE_0 /* data fork or normal directory */
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#define HFS_CAP_DATA HFS_ITYPE_0 /* data fork of file */
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#define HFS_CAP_NDIR HFS_ITYPE_0 /* normal directory */
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#define HFS_CAP_FNDR HFS_ITYPE_1 /* finder info for file or dir */
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#define HFS_CAP_RSRC HFS_ITYPE_2 /* resource fork of file */
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#define HFS_CAP_RDIR HFS_ITYPE_2 /* .resource directory */
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#define HFS_CAP_FDIR HFS_ITYPE_3 /* .finderinfo directory */
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/* ITYPEs for Apple Double */
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#define HFS_DBL_NORM HFS_ITYPE_0 /* data fork or directory */
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#define HFS_DBL_DATA HFS_ITYPE_0 /* data fork of file */
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#define HFS_DBL_DIR HFS_ITYPE_0 /* directory */
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#define HFS_DBL_HDR HFS_ITYPE_1 /* AD header of file or dir */
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/* ITYPEs for netatalk */
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#define HFS_NAT_NORM HFS_ITYPE_0 /* data fork or directory */
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#define HFS_NAT_DATA HFS_ITYPE_0 /* data fork of file */
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#define HFS_NAT_NDIR HFS_ITYPE_0 /* normal directory */
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#define HFS_NAT_HDR HFS_ITYPE_1 /* AD header of file or dir */
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#define HFS_NAT_HDIR HFS_ITYPE_2 /* directory holding AD headers */
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/* ITYPEs for Apple Single */
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#define HFS_SGL_NORM HFS_ITYPE_0 /* AppleSingle file or directory */
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#define HFS_SGL_SNGL HFS_ITYPE_0 /* AppleSingle file */
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#define HFS_SGL_DIR HFS_ITYPE_0 /* directory */
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#define HFS_SGL_DINF HFS_ITYPE_1 /* %DirInfo for directory */
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/* IDs for elements of an AppleDouble or AppleSingle header */
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#define HFS_HDR_DATA 1 /* data fork */
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#define HFS_HDR_RSRC 2 /* resource fork */
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#define HFS_HDR_FNAME 3 /* full (31-character) name */
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#define HFS_HDR_COMNT 4 /* comment */
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#define HFS_HDR_BWICN 5 /* b/w icon */
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#define HFS_HDR_CICON 6 /* color icon info */
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#define HFS_HDR_OLDI 7 /* old file info */
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#define HFS_HDR_DATES 8 /* file dates info */
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#define HFS_HDR_FINFO 9 /* Finder info */
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#define HFS_HDR_MACI 10 /* Macintosh info */
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#define HFS_HDR_PRODOSI 11 /* ProDOS info */
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#define HFS_HDR_MSDOSI 12 /* MSDOS info */
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#define HFS_HDR_SNAME 13 /* short name */
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#define HFS_HDR_AFPI 14 /* AFP file info */
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#define HFS_HDR_DID 15 /* directory id */
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#define HFS_HDR_MAX 16
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/*
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* There are three time systems. All three are based on seconds since
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* a particular time/date.
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* Unix: unsigned lil-endian since 00:00 GMT, Jan. 1, 1970
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* mac: unsigned big-endian since 00:00 GMT, Jan. 1, 1904
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* header: SIGNED big-endian since 00:00 GMT, Jan. 1, 2000
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*
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*/
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#define hfs_h_to_mtime(ARG) htonl((hfs_s32)ntohl(ARG)+3029529600U)
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#define hfs_m_to_htime(ARG) ((hfs_s32)htonl(ntohl(ARG)-3029529600U))
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#define hfs_h_to_utime(ARG) ((hfs_s32)hfs_to_utc(ntohl(ARG)+946684800U))
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#define hfs_u_to_htime(ARG) ((hfs_s32)htonl(hfs_from_utc(ARG)-946684800U))
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#define hfs_u_to_mtime(ARG) htonl(hfs_from_utc(ARG)+2082844800U)
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#define hfs_m_to_utime(ARG) (hfs_to_utc(ntohl(ARG)-2082844800U))
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/*======== Data structures kept in memory ========*/
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/*
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* A descriptor for a single entry within the header of an
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* AppleDouble or AppleSingle header file.
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* An array of these make up a table of contents for the file.
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*/
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struct hfs_hdr_descr {
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hfs_u32 id; /* The Apple assigned ID for the entry type */
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hfs_u32 offset; /* The offset to reach the entry */
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hfs_u32 length; /* The length of the entry */
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};
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/*
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* The info needed to reconstruct a given header layout
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*/
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struct hfs_hdr_layout {
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hfs_u32 magic; /* AppleSingle or AppleDouble */
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hfs_u32 version; /* 0x00010000 or 0x00020000 */
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hfs_u16 entries; /* How many entries used */
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struct hfs_hdr_descr
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descr[HFS_HDR_MAX]; /* Descriptors */
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struct hfs_hdr_descr
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*order[HFS_HDR_MAX]; /* 'descr' ordered by offset */
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};
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/* header layout for netatalk's v1 appledouble file format */
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struct hfs_nat_hdr {
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hfs_lword_t magic;
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hfs_lword_t version;
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hfs_byte_t homefs[16];
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hfs_word_t entries;
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hfs_byte_t descrs[12*5];
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hfs_byte_t real_name[255]; /* id=3 */
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hfs_byte_t comment[200]; /* id=4 XXX: not yet implemented */
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hfs_byte_t old_info[16]; /* id=7 */
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hfs_u8 finderinfo[32]; /* id=9 */
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};
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/*
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* Default header layout for Netatalk and AppleDouble
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*/
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struct hfs_dbl_hdr {
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hfs_lword_t magic;
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hfs_lword_t version;
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hfs_byte_t filler[16];
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hfs_word_t entries;
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hfs_byte_t descrs[12*HFS_HDR_MAX];
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hfs_byte_t real_name[255]; /* id=3 */
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hfs_byte_t comment[200]; /* id=4 XXX: not yet implemented */
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hfs_u32 create_time; /* \ */
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hfs_u32 modify_time; /* | id=8 (or 7) */
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hfs_u32 backup_time; /* | */
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hfs_u32 access_time; /* / (attributes with id=7) */
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hfs_u8 finderinfo[32]; /* id=9 */
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hfs_u32 fileinfo; /* id=10 */
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hfs_u32 cnid; /* id=15 */
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hfs_u8 short_name[12]; /* id=13 */
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hfs_u8 prodosi[8]; /* id=11 */
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};
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/* finder metadata for CAP */
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struct hfs_cap_info {
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hfs_byte_t fi_fndr[32]; /* Finder's info */
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hfs_word_t fi_attr; /* AFP attributes (f=file/d=dir) */
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#define HFS_AFP_INV 0x001 /* Invisible bit (f/d) */
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#define HFS_AFP_EXPFOLDER 0x002 /* exported folder (d) */
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#define HFS_AFP_MULTI 0x002 /* Multiuser bit (f) */
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#define HFS_AFP_SYS 0x004 /* System bit (f/d) */
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#define HFS_AFP_DOPEN 0x008 /* data fork already open (f) */
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#define HFS_AFP_MOUNTED 0x008 /* mounted folder (d) */
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#define HFS_AFP_ROPEN 0x010 /* resource fork already open (f) */
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#define HFS_AFP_INEXPFOLDER 0x010 /* folder in shared area (d) */
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#define HFS_AFP_WRI 0x020 /* Write inhibit bit (readonly) (f) */
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#define HFS_AFP_BACKUP 0x040 /* backup needed bit (f/d) */
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#define HFS_AFP_RNI 0x080 /* Rename inhibit bit (f/d) */
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#define HFS_AFP_DEI 0x100 /* Delete inhibit bit (f/d) */
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#define HFS_AFP_NOCOPY 0x400 /* Copy protect bit (f) */
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#define HFS_AFP_RDONLY ( HFS_AFP_WRI|HFS_AFP_RNI|HFS_AFP_DEI)
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hfs_byte_t fi_magic1; /* Magic number: */
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#define HFS_CAP_MAGIC1 0xFF
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hfs_byte_t fi_version; /* Version of this structure: */
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#define HFS_CAP_VERSION 0x10
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hfs_byte_t fi_magic; /* Another magic number: */
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#define HFS_CAP_MAGIC 0xDA
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hfs_byte_t fi_bitmap; /* Bitmap of which names are valid: */
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#define HFS_CAP_SHORTNAME 0x01
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#define HFS_CAP_LONGNAME 0x02
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hfs_byte_t fi_shortfilename[12+1]; /* "short name" (unused) */
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hfs_byte_t fi_macfilename[32+1]; /* Original (Macintosh) name */
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hfs_byte_t fi_comln; /* Length of comment (always 0) */
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hfs_byte_t fi_comnt[200]; /* Finder comment (unused) */
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/* optional: used by aufs only if compiled with USE_MAC_DATES */
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hfs_byte_t fi_datemagic; /* Magic number for dates extension: */
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#define HFS_CAP_DMAGIC 0xDA
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hfs_byte_t fi_datevalid; /* Bitmap of which dates are valid: */
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#define HFS_CAP_MDATE 0x01
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#define HFS_CAP_CDATE 0x02
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hfs_lword_t fi_ctime; /* Creation date (in AFP format) */
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hfs_lword_t fi_mtime; /* Modify date (in AFP format) */
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hfs_lword_t fi_utime; /* Un*x time of last mtime change */
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hfs_byte_t pad;
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};
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#ifdef __KERNEL__
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typedef ssize_t hfs_rwret_t;
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typedef size_t hfs_rwarg_t;
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#include <asm/uaccess.h>
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/* Some forward declarations */
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struct hfs_fork;
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struct hfs_cat_key;
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struct hfs_cat_entry;
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extern struct hfs_cat_entry *hfs_cat_get(struct hfs_mdb *,
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const struct hfs_cat_key *);
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/* dir.c */
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extern int hfs_create(struct inode *, struct dentry *, int);
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extern int hfs_mkdir(struct inode *, struct dentry *, int);
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extern int hfs_unlink(struct inode *, struct dentry *);
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extern int hfs_rmdir(struct inode *, struct dentry *);
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extern int hfs_rename(struct inode *, struct dentry *,
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struct inode *, struct dentry *);
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/* dir_cap.c */
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extern const struct hfs_name hfs_cap_reserved1[];
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extern const struct hfs_name hfs_cap_reserved2[];
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extern struct inode_operations hfs_cap_ndir_inode_operations;
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extern struct inode_operations hfs_cap_fdir_inode_operations;
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extern struct inode_operations hfs_cap_rdir_inode_operations;
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extern struct file_operations hfs_cap_dir_operations;
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extern void hfs_cap_drop_dentry(struct dentry *, const ino_t);
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/* dir_dbl.c */
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extern const struct hfs_name hfs_dbl_reserved1[];
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extern const struct hfs_name hfs_dbl_reserved2[];
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extern struct inode_operations hfs_dbl_dir_inode_operations;
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extern struct file_operations hfs_dbl_dir_operations;
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extern void hfs_dbl_drop_dentry(struct dentry *, const ino_t);
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/* dir_nat.c */
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extern const struct hfs_name hfs_nat_reserved1[];
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extern const struct hfs_name hfs_nat_reserved2[];
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extern struct inode_operations hfs_nat_ndir_inode_operations;
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extern struct inode_operations hfs_nat_hdir_inode_operations;
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extern struct file_operations hfs_nat_dir_operations;
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extern void hfs_nat_drop_dentry(struct dentry *, const ino_t);
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/* file.c */
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extern hfs_s32 hfs_do_read(struct inode *, struct hfs_fork *, hfs_u32,
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char *, hfs_u32, int);
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extern hfs_s32 hfs_do_write(struct inode *, struct hfs_fork *, hfs_u32,
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const char *, hfs_u32);
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extern void hfs_file_fix_mode(struct hfs_cat_entry *entry);
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extern struct inode_operations hfs_file_inode_operations;
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extern struct file_operations hfs_file_operations;
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/* file_cap.c */
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extern struct inode_operations hfs_cap_info_inode_operations;
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extern struct file_operations hfs_cap_info_operations;
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/* file_hdr.c */
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extern struct inode_operations hfs_hdr_inode_operations;
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extern struct file_operations hfs_hdr_operations;
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extern const struct hfs_hdr_layout hfs_dbl_fil_hdr_layout;
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extern const struct hfs_hdr_layout hfs_dbl_dir_hdr_layout;
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extern const struct hfs_hdr_layout hfs_nat_hdr_layout;
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extern const struct hfs_hdr_layout hfs_nat2_hdr_layout;
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extern const struct hfs_hdr_layout hfs_sngl_hdr_layout;
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extern void hdr_truncate(struct inode *,size_t);
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/* inode.c */
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extern void hfs_put_inode(struct inode *);
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extern int hfs_notify_change(struct dentry *, struct iattr *);
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extern int hfs_notify_change_cap(struct dentry *, struct iattr *);
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extern int hfs_notify_change_hdr(struct dentry *, struct iattr *);
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extern struct inode *hfs_iget(struct hfs_cat_entry *, ino_t, struct dentry *);
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extern void hfs_cap_ifill(struct inode *, ino_t, const int);
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extern void hfs_dbl_ifill(struct inode *, ino_t, const int);
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extern void hfs_nat_ifill(struct inode *, ino_t, const int);
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extern void hfs_sngl_ifill(struct inode *, ino_t, const int);
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/* super.c */
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extern struct super_block *hfs_read_super(struct super_block *,void *,int);
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extern int hfs_remount(struct super_block *, int *, char *);
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/* trans.c */
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extern void hfs_colon2mac(struct hfs_name *, const char *, int);
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extern void hfs_prcnt2mac(struct hfs_name *, const char *, int);
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extern void hfs_triv2mac(struct hfs_name *, const char *, int);
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extern void hfs_latin2mac(struct hfs_name *, const char *, int);
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extern int hfs_mac2cap(char *, const struct hfs_name *);
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extern int hfs_mac2nat(char *, const struct hfs_name *);
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extern int hfs_mac2latin(char *, const struct hfs_name *);
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extern int hfs_mac2seven(char *, const struct hfs_name *);
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extern int hfs_mac2eight(char *, const struct hfs_name *);
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extern int hfs_mac2alpha(char *, const struct hfs_name *);
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extern int hfs_mac2triv(char *, const struct hfs_name *);
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extern void hfs_tolower(unsigned char *, int);
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#define HFS_I(X) (&((X)->u.hfs_i))
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#define HFS_SB(X) (&((X)->u.hfs_sb))
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static inline void hfs_nameout(struct inode *dir, struct hfs_name *out,
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const char *in, int len) {
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HFS_SB(dir->i_sb)->s_nameout(out, in, len);
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}
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static inline int hfs_namein(struct inode *dir, char *out,
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const struct hfs_name *in) {
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int len = HFS_SB(dir->i_sb)->s_namein(out, in);
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if (HFS_SB(dir->i_sb)->s_lowercase) {
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hfs_tolower(out, len);
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}
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return len;
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}
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#endif /* __KERNEL__ */
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#endif
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