/* * linux/include/linux/hfs_fs.h * * Copyright (C) 1995-1997 Paul H. Hargrove * This file may be distributed under the terms of the GNU 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 /* 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 #define HFS_HDR_RSRC 2 #define HFS_HDR_FNAME 3 #define HFS_HDR_COMNT 4 #define HFS_HDR_BWICN 5 #define HFS_HDR_CICON 6 #define HFS_HDR_OLDI 7 #define HFS_HDR_DATES 8 #define HFS_HDR_FINFO 9 #define HFS_HDR_MACI 10 #define HFS_HDR_MAX 10 /* * 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 */ }; /* * Default header layout for Netatalk */ 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[60]; hfs_byte_t real_name[255]; /* id=3 */ hfs_byte_t comment[200]; /* id=4 XXX: not yet implemented */ hfs_lword_t create_time; /* \ */ hfs_lword_t modify_time; /* | */ hfs_lword_t backup_time; /* | id=7 */ hfs_word_t filler; /* | */ hfs_word_t attr; /* / */ hfs_byte_t finderinfo[32]; /* id=9 */ }; /* * Default header layout for 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_u32 create_time; /* \ */ hfs_u32 modify_time; /* | id=8 */ hfs_u32 backup_time; /* | */ hfs_u32 access_time; /* / */ hfs_u8 finderinfo[32]; /* id=9 */ hfs_u32 fileinfo; /* id=10 */ hfs_u8 real_name[32]; /* id=3 */ hfs_u8 comment[200]; /* id=4 XXX: not yet implemented */ }; /* finder metadata for CAP */ struct hfs_cap_info { hfs_byte_t fi_fndr[32]; /* Finder's info */ hfs_word_t fi_attr; /* AFP attributes */ #define HFS_AFP_WRI 0x020 /* Write inhibit bit */ #define HFS_AFP_RNI 0x080 /* Rename inhibit bit (AFP >= 2.0) */ #define HFS_AFP_DEI 0x100 /* Delete inhibit bit (AFP >= 2.0) */ #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 /* 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 hfs_rwret_t hfs_dir_read(struct file *, char *, hfs_rwarg_t, loff_t *); extern int hfs_create(struct inode *, struct dentry *, int); extern int hfs_mkdir(struct inode *, struct dentry *, int); extern int hfs_mknod(struct inode *, struct dentry *, int, 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 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 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 void hfs_nat_drop_dentry(struct dentry *, const ino_t); /* dir_sngl.c */ extern const struct hfs_name hfs_sngl_reserved1[]; extern const struct hfs_name hfs_sngl_reserved2[]; extern struct inode_operations hfs_sngl_dir_inode_operations; /* 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; /* file_cap.c */ extern struct inode_operations hfs_cap_info_inode_operations; /* file_hdr.c */ extern struct inode_operations hfs_hdr_inode_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_sngl_hdr_layout; /* inode.c */ extern void hfs_put_inode(struct inode *); extern int hfs_notify_change(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); extern void hfs_dbl_ifill(struct inode *, ino_t); extern void hfs_nat_ifill(struct inode *, ino_t); extern void hfs_sngl_ifill(struct inode *, ino_t); /* super.c */ extern struct super_block *hfs_read_super(struct super_block *,void *,int); extern int init_hfs_fs(void); /* 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)) extern __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); } extern __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