2 * $Id: adouble.h,v 1.55 2010-03-30 12:55:26 franklahm Exp $
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
6 * Permission to use, copy, modify, and distribute this software and
7 * its documentation for any purpose and without fee is hereby granted,
8 * provided that the above copyright notice appears in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation, and that the name of The University
11 * of Michigan not be used in advertising or publicity pertaining to
12 * distribution of the software without specific, written prior
13 * permission. This software is supplied as is without expressed or
14 * implied warranties of any kind.
16 * Research Systems Unix Group
17 * The University of Michigan
19 * 535 W. William Street
22 * netatalk@itd.umich.edu
27 * @brief Part of Netatalk's AppleDouble implementatation
30 #ifndef _ATALK_ADOUBLE_H
31 #define _ATALK_ADOUBLE_H
37 /* -------------------
38 * need pread() and pwrite()
55 Still have to figure out which platforms really
56 need _XOPEN_SOURCE defined for pread.
58 #if defined(HAVE_PREAD) && !defined(SOLARIS) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(TRU64)
60 #define _XOPEN_SOURCE 500
64 #include <sys/types.h>
73 #include <sys/cdefs.h>
81 #ifdef HAVE_SYS_TIME_H
84 #include <netatalk/endian.h>
87 #define AD_VERSION1 0x00010000
88 #define SFM_VERSION AD_VERSION1
90 #define AD_VERSION2 0x00020000
91 #define AD_VERSION2_OSX 0x00020001
93 #define AD_VERSION1_ADS 0x00010002
95 #define AD_VERSION1_SFM 0x00010003
96 #define AD_VERSION AD_VERSION2
99 * AppleDouble entry IDs.
101 #define ADEID_DFORK 1
102 #define ADEID_RFORK 2
103 #define ADEID_NAME 3 /* Note: starting with Netatalk 2.1 we do NOT alway set the name */
104 #define ADEID_COMMENT 4
105 #define ADEID_ICONBW 5
106 #define ADEID_ICONCOL 6
107 #define ADEID_FILEI 7 /* v1, replaced by: */
108 #define ADEID_FILEDATESI 8 /* this */
109 #define ADEID_FINDERI 9
110 #define ADEID_MACFILEI 10 /* we don't use this */
111 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
112 #define ADEID_MSDOSFILEI 12 /* we don't use this */
113 #define ADEID_SHORTNAME 13
114 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
117 #if AD_VERSION == AD_VERSION1
120 /* netatalk private note fileid reused DID */
121 #define ADEID_PRIVDEV 16
122 #define ADEID_PRIVINO 17
123 #define ADEID_PRIVSYN 18 /* in synch with database */
124 #define ADEID_PRIVID 19
125 #define ADEID_SFMRESERVE1 20
126 #define ADEID_SFMRESERVE2 21
128 #define AD_DEV 0x80444556
129 #define AD_INO 0x80494E4F
130 #define AD_SYN 0x8053594E
131 #define AD_ID 0x8053567E
136 #define AD_APPLESINGLE_MAGIC 0x00051600
137 #define AD_APPLEDOUBLE_MAGIC 0x00051607
138 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
139 #define SFM_MAGIC 0x00504641
141 /* sizes of relevant entry bits */
142 #define ADEDLEN_MAGIC 4
143 #define ADEDLEN_VERSION 4
144 #define ADEDLEN_FILLER 16
145 #define ADEDLEN_NENTRIES 2
148 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
149 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
150 #define AD_ENTRY_LEN 12 /* size of a single entry header */
152 /* v1 field widths */
153 #define ADEDLEN_NAME 255
154 #define ADEDLEN_COMMENT 200
155 #define ADEDLEN_FILEI 16
156 #define ADEDLEN_FINDERI 32
158 /* v2 field widths */
159 #define ADEDLEN_FILEDATESI 16
160 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
161 #define ADEDLEN_AFPFILEI 4
162 #define ADEDLEN_MACFILEI 4
163 #define ADEDLEN_PRODOSFILEI 8
164 #define ADEDLEN_MSDOSFILEI 2
165 #define ADEDLEN_DID 4
166 #define ADEDLEN_PRIVDEV 8
167 #define ADEDLEN_PRIVINO 8
168 #define ADEDLEN_PRIVSYN 8
169 #define ADEDLEN_PRIVID 4
171 #define ADEID_NUM_V1 5
172 #define ADEID_NUM_V2 13
174 // #define ADEID_NUM_SFM 5
175 /* sizeof SFM meta data */
176 #define AD_SFM_LEN 60
179 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT + ADEDLEN_FILEI + ADEDLEN_FINDERI + \
180 (ADEID_NUM_V1 * AD_ENTRY_LEN))
182 #if AD_DATASZ1 != 589
183 #error bad size for AD_DATASZ1
186 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI + ADEDLEN_SHORTNAME + ADEDLEN_PRODOSFILEI \
187 + ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
190 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + ((ADEID_NUM_V2 - ADEID_NUM_V1) * AD_ENTRY_LEN))
192 #if AD_DATASZ2 != 741
193 #error bad size for AD_DATASZ2
196 #define AD_DATASZ_MAX 1024
197 #if AD_VERSION == AD_VERSION1
198 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
199 #elif AD_VERSION == AD_VERSION2
200 #define AD_DATASZ AD_DATASZ2
204 * some legacy defines from netatalk-990130
205 * (to keep from breaking certain packages)
209 #define ADEDOFF_RFORK 589
210 #define ADEDOFF_NAME 86
211 #define ADEDOFF_COMMENT 341
212 #define ADEDOFF_FINDERI 557
213 #ifndef ADEDOFF_FILEI
214 #define ADEDOFF_FILEI 541
217 typedef u_int32_t cnid_t;
220 * The header of the AppleDouble Header File looks like this:
226 * Home File System 16 (this becomes filler in ad v2)
227 * Number of Entries 2
228 * Entry Descriptors for each entry:
239 typedef struct adf_lock_t {
242 int *refcount; /* handle read locks with multiple users */
246 int adf_fd; /* -1: invalid, -2: symlink */
255 adf_lock_t *adf_lock;
256 int adf_refcount, adf_lockcount, adf_lockmax;
259 /* some header protection */
260 #define AD_INITED 0xad494e54 /* ad"INT" */
265 u_int32_t ad_version;
266 char ad_filler[ 16 ];
267 struct ad_entry ad_eid[ ADEID_MAX ];
268 struct ad_fd ad_data_fork, ad_resource_fork, ad_metadata_fork;
269 struct ad_fd *ad_md; /* either ad_resource or ad_metadata */
271 int ad_flags; /* This really stores version info too (AD_VERSION*) */
272 int ad_adflags; /* ad_open flags adflags like ADFLAGS_DIR */
273 unsigned int ad_inited;
276 int ad_refcount; /* used in afpd/ofork.c */
277 off_t ad_rlen; /* ressource fork len with AFP 3.0
278 the header parameter size is too small.
280 char *ad_m_name; /* mac name for open fork */
282 struct adouble_fops *ad_ops;
283 u_int16_t ad_open_forks; /* open forks (by others) */
285 #ifdef USE_MMAPPED_HEADERS
288 char ad_data[AD_DATASZ_MAX];
292 struct adouble_fops {
293 char *(*ad_path)(const char *, int);
294 int (*ad_mkrf)(char *);
295 int (*ad_rebuild_header)(struct adouble *);
296 int (*ad_check_header)(struct adouble *, struct stat *);
297 int (*ad_header_read)(struct adouble *, struct stat *);
298 int (*ad_header_upgrade)(struct adouble *, char *);
301 #define ADFLAGS_DF (1<<0)
302 #define ADFLAGS_HF (1<<1)
303 #define ADFLAGS_DIR (1<<2)
305 #define ADFLAGS_NOADOUBLE (1<<3)
307 #define ADFLAGS_V1COMPAT (1<<4)
308 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
309 #define ADFLAGS_RDONLY (1<<6) /* don't try readwrite */
310 #define ADFLAGS_OPENFORKS (1<<7) /* check for open fork in ad_metadata function */
311 #define ADFLAGS_RF (1<<8)
312 #define ADFLAGS_MD ADFLAGS_HF /* (1<<9) */
313 #define ADFLAGS_CREATE (1<<9)
315 /* adouble v2 cnid cache */
316 #define ADVOL_NODEV (1 << 0)
317 #define ADVOL_CACHE (1 << 1)
318 #define ADVOL_UNIXPRIV (1 << 2) /* adouble unix priv */
319 #define ADVOL_INVDOTS (1 << 3) /* dot files (.DS_Store) are invisible) */
320 #define ADVOL_NOADOUBLE (1 << 4)
323 #define ADLOCK_CLR (0)
324 #define ADLOCK_RD (1<<0)
325 #define ADLOCK_WR (1<<1)
326 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
327 #define ADLOCK_UPGRADE (1<<2)
328 #define ADLOCK_FILELOCK (1<<3)
330 /* we use this so that we can use the same mechanism for both byte
331 * locks and file synchronization locks. i do this by co-opting either
332 * first bits on 32-bit machines or shifting above the last bit on
333 * 64-bit machines. this only matters for the data fork. */
334 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
335 /* synchronization locks */
336 #define AD_FILELOCK_BASE (0x80000000)
338 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
342 * AD_FILELOCK_BASE case
344 #if _FILE_OFFSET_BITS == 64
345 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
347 /* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
349 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
351 #define BYTELOCK_MAX (0x7FFFFFFFU)
355 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
356 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
357 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
358 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
359 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
361 /* time stuff. we overload the bits a little. */
362 #define AD_DATE_CREATE 0
363 #define AD_DATE_MODIFY 4
364 #define AD_DATE_BACKUP 8
365 #define AD_DATE_ACCESS 12
366 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
367 AD_DATE_BACKUP | AD_DATE_ACCESS)
368 #define AD_DATE_UNIX (1 << 10)
369 #define AD_DATE_START htonl(0x80000000)
370 #define AD_DATE_DELTA 946684800
371 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
372 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
374 /* various finder offset and info bits */
375 #define FINDERINFO_FRTYPEOFF 0
376 #define FINDERINFO_FRCREATOFF 4
377 #define FINDERINFO_FRFLAGOFF 8
379 /* FinderInfo Flags, char in `ad ls`, valid for files|dirs */
380 #define FINDERINFO_ISONDESK (1) /* "d", fd */
381 #define FINDERINFO_COLOR (0x0e)
382 #define FINDERINFO_HIDEEXT (1<<4) /* "e", fd */
383 #define FINDERINFO_ISHARED (1<<6) /* "m", f */
384 #define FINDERINFO_HASNOINITS (1<<7) /* "n", f */
385 #define FINDERINFO_HASBEENINITED (1<<8) /* "i", fd */
386 #define FINDERINFO_HASCUSTOMICON (1<<10) /* "c", fd */
387 #define FINDERINFO_ISSTATIONNERY (1<<11) /* "t", f */
388 #define FINDERINFO_NAMELOCKED (1<<12) /* "s", fd */
389 #define FINDERINFO_HASBUNDLE (1<<13) /* "b", fd */
390 #define FINDERINFO_INVISIBLE (1<<14) /* "v", fd */
391 #define FINDERINFO_ISALIAS (1<<15) /* "a", fd */
393 #define FINDERINFO_FRVIEWOFF 14
394 #define FINDERINFO_CUSTOMICON 0x4
395 #define FINDERINFO_CLOSEDVIEW 0x100
398 The "shared" and "invisible" attributes are opaque and stored and
399 retrieved from the FinderFlags. This fixes Bug #2802236:
400 <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
403 /* AFP attributes, char in `ad ls`, valid for files|dirs */
404 #define ATTRBIT_INVISIBLE (1<<0) /* opaque from FinderInfo */
405 #define ATTRBIT_MULTIUSER (1<<1) /* file: opaque, dir: see below */
406 #define ATTRBIT_SYSTEM (1<<2) /* "y", fd */
407 #define ATTRBIT_DOPEN (1<<3) /* data fork already open. Not stored, computed on the fly */
408 #define ATTRBIT_ROPEN (1<<4) /* resource fork already open. Not stored, computed on the fly */
409 #define ATTRBIT_NOWRITE (1<<5) /* "w", f, write inhibit(v2)/read-only(v1) bit */
410 #define ATTRBIT_BACKUP (1<<6) /* "p", fd */
411 #define ATTRBIT_NORENAME (1<<7) /* "r", fd */
412 #define ATTRBIT_NODELETE (1<<8) /* "l", fd */
413 #define ATTRBIT_NOCOPY (1<<10) /* "o", f */
414 #define ATTRBIT_SETCLR (1<<15) /* set/clear bit (d) */
416 /* AFP attributes for dirs. These should probably be computed on the fly.
417 * We don't do that, nor does e.g. OS S X 10.5 Server */
418 #define ATTRBIT_EXPFLDR (1<<1) /* Folder is a sharepoint */
419 #define ATTRBIT_MOUNTED (1<<3) /* Directory is mounted by a user */
420 #define ATTRBIT_SHARED (1<<4) /* Shared area, called IsExpFolder in spec */
422 /* private AFPFileInfo bits */
423 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
424 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
425 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
427 #define ad_data_fileno(ad) ((ad)->ad_data_fork.adf_fd)
428 #define ad_reso_fileno(ad) ((ad)->ad_resource_fork.adf_fd)
429 #define ad_meta_fileno(ad) ((ad)->ad_md->adf_fd)
431 #define ad_getversion(ad) ((ad)->ad_version)
433 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
434 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
435 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
436 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + (ad)->ad_eid[(eid)].ade_off)
438 #define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
439 #define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
442 extern int ad_rebuild_adouble_header (struct adouble *);
443 extern int ad_rebuild_sfm_header (struct adouble *);
444 extern int ad_copy_header (struct adouble *, struct adouble *);
445 extern int ad_flush (struct adouble *);
446 extern int ad_close (struct adouble *, int);
449 extern int ad_fcntl_lock (struct adouble *, const u_int32_t /*eid*/,
450 const int /*type*/, const off_t /*offset*/,
451 const off_t /*len*/, const int /*user*/);
452 extern void ad_fcntl_unlock (struct adouble *, const int /*user*/);
453 extern int ad_fcntl_tmplock (struct adouble *, const u_int32_t /*eid*/,
454 const int /*type*/, const off_t /*offset*/,
455 const off_t /*len*/, const int /*user*/);
456 extern int ad_testlock (struct adouble * /*adp*/, int /*eid*/, off_t /*off*/);
458 extern u_int16_t ad_openforks (struct adouble * /*adp*/, u_int16_t);
459 extern int ad_excl_lock (struct adouble * /*adp*/, const u_int32_t /*eid*/);
461 #define ad_lock ad_fcntl_lock
462 #define ad_tmplock ad_fcntl_tmplock
463 #define ad_unlock ad_fcntl_unlock
466 extern int ad_setfuid (const uid_t );
467 extern uid_t ad_getfuid (void );
468 extern char *ad_dir (const char *);
469 extern char *ad_path (const char *, int);
470 extern char *ad_path_osx (const char *, int);
471 extern char *ad_path_ads (const char *, int);
472 extern char *ad_path_sfm (const char *, int);
473 extern int ad_mode (const char *, int);
474 extern int ad_mkdir (const char *, int);
475 extern void ad_init (struct adouble *, int, int );
476 extern int ad_open (const char *, int, int, int, struct adouble *);
477 extern int ad_openat (int dirfd, const char *, int, int, int, struct adouble *);
478 extern int ad_refresh (struct adouble *);
479 extern int ad_stat (const char *, struct stat *);
480 extern int ad_metadata (const char *, int, struct adouble *);
481 extern int ad_metadataat (int, const char *, int, struct adouble *);
483 #define ad_open_metadata(name, flags, mode, adp)\
484 ad_open(name, ADFLAGS_MD|(flags), O_RDWR |(mode), 0666, (adp))
486 #define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_MD)
488 /* build a resource fork mode from the data fork mode:
489 * remove X mode and extend header to RW if R or W (W if R for locking),
491 static inline mode_t ad_hf_mode (mode_t mode)
493 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
494 /* fnctl lock need write access */
495 if ((mode & S_IRUSR))
497 if ((mode & S_IRGRP))
499 if ((mode & S_IROTH))
502 /* if write mode set add read mode */
503 if ((mode & S_IWUSR))
505 if ((mode & S_IWGRP))
507 if ((mode & S_IWOTH))
514 ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size);
515 ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size);
516 ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size);
517 ssize_t sys_listxattr (const char *path, char *list, size_t size);
518 ssize_t sys_llistxattr (const char *path, char *list, size_t size);
519 ssize_t sys_flistxattr (int filedes, char *list, size_t size);
520 int sys_removexattr (const char *path, const char *name);
521 int sys_lremovexattr (const char *path, const char *name);
522 int sys_fremovexattr (int filedes, const char *name);
523 int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags);
524 int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags);
525 int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags);
526 int sys_copyxattr (const char *src, const char *dst);
528 /* ad_read.c/ad_write.c */
529 extern int sys_ftruncate(int fd, off_t length);
531 extern ssize_t ad_read (struct adouble *, const u_int32_t,
532 const off_t, char *, const size_t);
533 extern ssize_t ad_pread (struct ad_fd *, void *, size_t, off_t);
534 extern ssize_t ad_write (struct adouble *, const u_int32_t, off_t,
535 const int, const char *, const size_t);
536 extern ssize_t adf_pread (struct ad_fd *, void *, size_t, off_t);
537 extern ssize_t adf_pwrite (struct ad_fd *, const void *, size_t, off_t);
538 extern int ad_dtruncate (struct adouble *, const off_t);
539 extern int ad_rtruncate (struct adouble *, const off_t);
542 extern off_t ad_size (const struct adouble *, const u_int32_t );
545 extern void *ad_mmapread (struct adouble *, const u_int32_t,
546 const off_t, const size_t);
547 extern void *ad_mmapwrite (struct adouble *, const u_int32_t,
548 const off_t, const int, const size_t);
549 #define ad_munmap(buf, len) (munmap((buf), (len)))
552 extern int ad_setdate (struct adouble *, unsigned int, u_int32_t);
553 extern int ad_getdate (const struct adouble *, unsigned int, u_int32_t *);
556 extern int ad_setattr (const struct adouble *, const u_int16_t);
557 extern int ad_getattr (const struct adouble *, u_int16_t *);
559 /* Note: starting with Netatalk 2.1 we do NOT alway set the name */
560 extern int ad_setname (struct adouble *, const char *);
562 #if AD_VERSION == AD_VERSION2
563 extern int ad_setid (struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const u_int32_t, const void *);
564 extern u_int32_t ad_getid (struct adouble *, const dev_t, const ino_t, const cnid_t, const void *);
565 extern u_int32_t ad_forcegetid (struct adouble *adp);
567 #define ad_setid(a, b, c)
571 extern int ad_readfile_init(const struct adouble *ad,
572 const int eid, off_t *off,
577 #ifdef HAVE_SENDFILE_WRITE
578 extern ssize_t ad_writefile (struct adouble *, const int,
579 const int, off_t, const int, const size_t);
580 #endif /* HAVE_SENDFILE_WRITE */
583 #endif /* _ATALK_ADOUBLE_H */