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)
62 #define _XOPEN_SOURCE 500
65 #include <sys/types.h>
74 #include <sys/cdefs.h>
80 #ifdef USE_MMAPPED_HEADERS
84 #ifdef HAVE_SYS_TIME_H
87 #include <netatalk/endian.h>
90 #define AD_VERSION1 0x00010000
91 #define SFM_VERSION AD_VERSION1
93 #define AD_VERSION2 0x00020000
94 #define AD_VERSION2_OSX 0x00020001
96 #define AD_VERSION1_ADS 0x00010002
98 #define AD_VERSION1_SFM 0x00010003
99 #define AD_VERSION AD_VERSION2
102 * AppleDouble entry IDs.
104 #define ADEID_DFORK 1
105 #define ADEID_RFORK 2
106 #define ADEID_NAME 3 /* Note: starting with Netatalk 2.1 we do NOT alway set the name */
107 #define ADEID_COMMENT 4
108 #define ADEID_ICONBW 5
109 #define ADEID_ICONCOL 6
110 #define ADEID_FILEI 7 /* v1, replaced by: */
111 #define ADEID_FILEDATESI 8 /* this */
112 #define ADEID_FINDERI 9
113 #define ADEID_MACFILEI 10 /* we don't use this */
114 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
115 #define ADEID_MSDOSFILEI 12 /* we don't use this */
116 #define ADEID_SHORTNAME 13
117 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
120 #if AD_VERSION == AD_VERSION1
123 /* netatalk private note fileid reused DID */
124 #define ADEID_PRIVDEV 16
125 #define ADEID_PRIVINO 17
126 #define ADEID_PRIVSYN 18 /* in synch with database */
127 #define ADEID_PRIVID 19
128 #define ADEID_SFMRESERVE1 20
129 #define ADEID_SFMRESERVE2 21
131 #define AD_DEV 0x80444556
132 #define AD_INO 0x80494E4F
133 #define AD_SYN 0x8053594E
134 #define AD_ID 0x8053567E
139 #define AD_APPLESINGLE_MAGIC 0x00051600
140 #define AD_APPLEDOUBLE_MAGIC 0x00051607
141 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
142 #define SFM_MAGIC 0x00504641
144 /* sizes of relevant entry bits */
145 #define ADEDLEN_MAGIC 4
146 #define ADEDLEN_VERSION 4
147 #define ADEDLEN_FILLER 16
148 #define ADEDLEN_NENTRIES 2
151 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
152 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
153 #define AD_ENTRY_LEN 12 /* size of a single entry header */
155 /* v1 field widths */
156 #define ADEDLEN_NAME 255
157 #define ADEDLEN_COMMENT 200
158 #define ADEDLEN_FILEI 16
159 #define ADEDLEN_FINDERI 32
161 /* v2 field widths */
162 #define ADEDLEN_FILEDATESI 16
163 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
164 #define ADEDLEN_AFPFILEI 4
165 #define ADEDLEN_MACFILEI 4
166 #define ADEDLEN_PRODOSFILEI 8
167 #define ADEDLEN_MSDOSFILEI 2
168 #define ADEDLEN_DID 4
169 #define ADEDLEN_PRIVDEV 8
170 #define ADEDLEN_PRIVINO 8
171 #define ADEDLEN_PRIVSYN 8
172 #define ADEDLEN_PRIVID 4
174 #define ADEID_NUM_V1 5
175 #define ADEID_NUM_V2 13
177 // #define ADEID_NUM_SFM 5
178 /* sizeof SFM meta data */
179 #define AD_SFM_LEN 60
182 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT + ADEDLEN_FILEI + ADEDLEN_FINDERI + \
183 (ADEID_NUM_V1 * AD_ENTRY_LEN))
185 #if AD_DATASZ1 != 589
186 #error bad size for AD_DATASZ1
189 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI + ADEDLEN_SHORTNAME + ADEDLEN_PRODOSFILEI \
190 + ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
193 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + ((ADEID_NUM_V2 - ADEID_NUM_V1) * AD_ENTRY_LEN))
195 #if AD_DATASZ2 != 741
196 #error bad size for AD_DATASZ2
199 #define AD_DATASZ_MAX 1024
200 #if AD_VERSION == AD_VERSION1
201 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
202 #elif AD_VERSION == AD_VERSION2
203 #define AD_DATASZ AD_DATASZ2
207 * some legacy defines from netatalk-990130
208 * (to keep from breaking certain packages)
212 #define ADEDOFF_RFORK 589
213 #define ADEDOFF_NAME 86
214 #define ADEDOFF_COMMENT 341
215 #define ADEDOFF_FINDERI 557
216 #ifndef ADEDOFF_FILEI
217 #define ADEDOFF_FILEI 541
220 typedef u_int32_t cnid_t;
223 * The header of the AppleDouble Header File looks like this:
229 * Home File System 16 (this becomes filler in ad v2)
230 * Number of Entries 2
231 * Entry Descriptors for each entry:
242 typedef struct adf_lock_t {
245 int *refcount; /* handle read locks with multiple users */
249 int adf_fd; /* -1: invalid, -2: symlink */
258 adf_lock_t *adf_lock;
259 int adf_refcount, adf_lockcount, adf_lockmax;
262 /* some header protection */
263 #define AD_INITED 0xad494e54 /* ad"INT" */
268 u_int32_t ad_version;
269 char ad_filler[ 16 ];
270 struct ad_entry ad_eid[ ADEID_MAX ];
271 struct ad_fd ad_data_fork, ad_resource_fork, ad_metadata_fork;
272 struct ad_fd *ad_md; /* either ad_resource or ad_metadata */
274 int ad_flags; /* This really stores version info too (AD_VERSION*) */
275 int ad_adflags; /* ad_open flags adflags like ADFLAGS_DIR */
276 unsigned int ad_inited;
279 int ad_refcount; /* used in afpd/ofork.c */
280 off_t ad_rlen; /* ressource fork len with AFP 3.0
281 the header parameter size is too small.
283 char *ad_m_name; /* mac name for open fork */
285 struct adouble_fops *ad_ops;
286 u_int16_t ad_open_forks; /* open forks (by others) */
288 #ifdef USE_MMAPPED_HEADERS
291 char ad_data[AD_DATASZ_MAX];
295 struct adouble_fops {
296 char *(*ad_path)(const char *, int);
297 int (*ad_mkrf)(char *);
298 int (*ad_rebuild_header)(struct adouble *);
299 int (*ad_check_header)(struct adouble *, struct stat *);
300 int (*ad_header_read)(struct adouble *, struct stat *);
301 int (*ad_header_upgrade)(struct adouble *, char *);
304 #define ADFLAGS_DF (1<<0)
305 #define ADFLAGS_HF (1<<1)
306 #define ADFLAGS_DIR (1<<2)
308 #define ADFLAGS_NOADOUBLE (1<<3)
310 #define ADFLAGS_V1COMPAT (1<<4)
311 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
312 #define ADFLAGS_RDONLY (1<<6) /* don't try readwrite */
313 #define ADFLAGS_OPENFORKS (1<<7) /* check for open fork in ad_metadata function */
314 #define ADFLAGS_RF (1<<8)
315 #define ADFLAGS_MD ADFLAGS_HF /* (1<<9) */
316 #define ADFLAGS_CREATE (1<<9)
318 /* adouble v2 cnid cache */
319 #define ADVOL_NODEV (1 << 0)
320 #define ADVOL_CACHE (1 << 1)
321 #define ADVOL_UNIXPRIV (1 << 2) /* adouble unix priv */
322 #define ADVOL_INVDOTS (1 << 3) /* dot files (.DS_Store) are invisible) */
323 #define ADVOL_NOADOUBLE (1 << 4)
326 #define ADLOCK_CLR (0)
327 #define ADLOCK_RD (1<<0)
328 #define ADLOCK_WR (1<<1)
329 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
330 #define ADLOCK_UPGRADE (1<<2)
331 #define ADLOCK_FILELOCK (1<<3)
333 /* we use this so that we can use the same mechanism for both byte
334 * locks and file synchronization locks. i do this by co-opting either
335 * first bits on 32-bit machines or shifting above the last bit on
336 * 64-bit machines. this only matters for the data fork. */
337 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
338 /* synchronization locks */
339 #define AD_FILELOCK_BASE (0x80000000)
341 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
345 * AD_FILELOCK_BASE case
347 #if _FILE_OFFSET_BITS == 64
348 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
350 /* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
352 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
354 #define BYTELOCK_MAX (0x7FFFFFFFU)
358 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
359 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
360 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
361 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
362 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
364 /* time stuff. we overload the bits a little. */
365 #define AD_DATE_CREATE 0
366 #define AD_DATE_MODIFY 4
367 #define AD_DATE_BACKUP 8
368 #define AD_DATE_ACCESS 12
369 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
370 AD_DATE_BACKUP | AD_DATE_ACCESS)
371 #define AD_DATE_UNIX (1 << 10)
372 #define AD_DATE_START htonl(0x80000000)
373 #define AD_DATE_DELTA 946684800
374 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
375 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
377 /* various finder offset and info bits */
378 #define FINDERINFO_FRTYPEOFF 0
379 #define FINDERINFO_FRCREATOFF 4
380 #define FINDERINFO_FRFLAGOFF 8
382 /* FinderInfo Flags, char in `ad ls`, valid for files|dirs */
383 #define FINDERINFO_ISONDESK (1) /* "d", fd */
384 #define FINDERINFO_COLOR (0x0e)
385 #define FINDERINFO_HIDEEXT (1<<4) /* "e", fd */
386 #define FINDERINFO_ISHARED (1<<6) /* "m", f */
387 #define FINDERINFO_HASNOINITS (1<<7) /* "n", f */
388 #define FINDERINFO_HASBEENINITED (1<<8) /* "i", fd */
389 #define FINDERINFO_HASCUSTOMICON (1<<10) /* "c", fd */
390 #define FINDERINFO_ISSTATIONNERY (1<<11) /* "t", f */
391 #define FINDERINFO_NAMELOCKED (1<<12) /* "s", fd */
392 #define FINDERINFO_HASBUNDLE (1<<13) /* "b", fd */
393 #define FINDERINFO_INVISIBLE (1<<14) /* "v", fd */
394 #define FINDERINFO_ISALIAS (1<<15) /* "a", fd */
396 #define FINDERINFO_FRVIEWOFF 14
397 #define FINDERINFO_CUSTOMICON 0x4
398 #define FINDERINFO_CLOSEDVIEW 0x100
401 The "shared" and "invisible" attributes are opaque and stored and
402 retrieved from the FinderFlags. This fixes Bug #2802236:
403 <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
406 /* AFP attributes, char in `ad ls`, valid for files|dirs */
407 #define ATTRBIT_INVISIBLE (1<<0) /* opaque from FinderInfo */
408 #define ATTRBIT_MULTIUSER (1<<1) /* file: opaque, dir: see below */
409 #define ATTRBIT_SYSTEM (1<<2) /* "y", fd */
410 #define ATTRBIT_DOPEN (1<<3) /* data fork already open. Not stored, computed on the fly */
411 #define ATTRBIT_ROPEN (1<<4) /* resource fork already open. Not stored, computed on the fly */
412 #define ATTRBIT_NOWRITE (1<<5) /* "w", f, write inhibit(v2)/read-only(v1) bit */
413 #define ATTRBIT_BACKUP (1<<6) /* "p", fd */
414 #define ATTRBIT_NORENAME (1<<7) /* "r", fd */
415 #define ATTRBIT_NODELETE (1<<8) /* "l", fd */
416 #define ATTRBIT_NOCOPY (1<<10) /* "o", f */
417 #define ATTRBIT_SETCLR (1<<15) /* set/clear bit (d) */
419 /* AFP attributes for dirs. These should probably be computed on the fly.
420 * We don't do that, nor does e.g. OS S X 10.5 Server */
421 #define ATTRBIT_EXPFLDR (1<<1) /* Folder is a sharepoint */
422 #define ATTRBIT_MOUNTED (1<<3) /* Directory is mounted by a user */
423 #define ATTRBIT_SHARED (1<<4) /* Shared area, called IsExpFolder in spec */
425 /* private AFPFileInfo bits */
426 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
427 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
428 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
430 #define ad_data_fileno(ad) ((ad)->ad_data_fork.adf_fd)
431 #define ad_reso_fileno(ad) ((ad)->ad_resource_fork.adf_fd)
432 #define ad_meta_fileno(ad) ((ad)->ad_md->adf_fd)
434 #define ad_getversion(ad) ((ad)->ad_version)
436 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
437 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
438 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
439 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + (ad)->ad_eid[(eid)].ade_off)
441 #define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
442 #define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
445 extern int ad_rebuild_adouble_header (struct adouble *);
446 extern int ad_rebuild_sfm_header (struct adouble *);
447 extern int ad_copy_header (struct adouble *, struct adouble *);
448 extern int ad_flush (struct adouble *);
449 extern int ad_close (struct adouble *, int);
452 extern int ad_fcntl_lock (struct adouble *, const u_int32_t /*eid*/,
453 const int /*type*/, const off_t /*offset*/,
454 const off_t /*len*/, const int /*user*/);
455 extern void ad_fcntl_unlock (struct adouble *, const int /*user*/);
456 extern int ad_fcntl_tmplock (struct adouble *, const u_int32_t /*eid*/,
457 const int /*type*/, const off_t /*offset*/,
458 const off_t /*len*/, const int /*user*/);
459 extern int ad_testlock (struct adouble * /*adp*/, int /*eid*/, off_t /*off*/);
461 extern u_int16_t ad_openforks (struct adouble * /*adp*/, u_int16_t);
462 extern int ad_excl_lock (struct adouble * /*adp*/, const u_int32_t /*eid*/);
464 #define ad_lock ad_fcntl_lock
465 #define ad_tmplock ad_fcntl_tmplock
466 #define ad_unlock ad_fcntl_unlock
469 extern int ad_setfuid (const uid_t );
470 extern uid_t ad_getfuid (void );
471 extern char *ad_dir (const char *);
472 extern char *ad_path (const char *, int);
473 extern char *ad_path_osx (const char *, int);
474 extern char *ad_path_ads (const char *, int);
475 extern char *ad_path_sfm (const char *, int);
476 extern int ad_mode (const char *, int);
477 extern int ad_mkdir (const char *, int);
478 extern void ad_init (struct adouble *, int, int );
479 extern int ad_open (const char *, int, int, int, struct adouble *);
480 extern int ad_openat (int dirfd, const char *, int, int, int, struct adouble *);
481 extern int ad_refresh (struct adouble *);
482 extern int ad_stat (const char *, struct stat *);
483 extern int ad_metadata (const char *, int, struct adouble *);
484 extern int ad_metadataat (int, const char *, int, struct adouble *);
486 #define ad_open_metadata(name, flags, mode, adp)\
487 ad_open(name, ADFLAGS_MD|(flags), O_RDWR |(mode), 0666, (adp))
489 #define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_MD)
491 /* build a resource fork mode from the data fork mode:
492 * remove X mode and extend header to RW if R or W (W if R for locking),
494 static inline mode_t ad_hf_mode (mode_t mode)
496 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
497 /* fnctl lock need write access */
498 if ((mode & S_IRUSR))
500 if ((mode & S_IRGRP))
502 if ((mode & S_IROTH))
505 /* if write mode set add read mode */
506 if ((mode & S_IWUSR))
508 if ((mode & S_IWGRP))
510 if ((mode & S_IWOTH))
517 ssize_t sys_getxattr (const char *path, const char *name, void *value, size_t size);
518 ssize_t sys_lgetxattr (const char *path, const char *name, void *value, size_t size);
519 ssize_t sys_fgetxattr (int filedes, const char *name, void *value, size_t size);
520 ssize_t sys_listxattr (const char *path, char *list, size_t size);
521 ssize_t sys_llistxattr (const char *path, char *list, size_t size);
522 ssize_t sys_flistxattr (int filedes, char *list, size_t size);
523 int sys_removexattr (const char *path, const char *name);
524 int sys_lremovexattr (const char *path, const char *name);
525 int sys_fremovexattr (int filedes, const char *name);
526 int sys_setxattr (const char *path, const char *name, const void *value, size_t size, int flags);
527 int sys_lsetxattr (const char *path, const char *name, const void *value, size_t size, int flags);
528 int sys_fsetxattr (int filedes, const char *name, const void *value, size_t size, int flags);
529 int sys_copyxattr (const char *src, const char *dst);
531 /* ad_read.c/ad_write.c */
532 extern int sys_ftruncate(int fd, off_t length);
534 extern ssize_t ad_read (struct adouble *, const u_int32_t,
535 const off_t, char *, const size_t);
536 extern ssize_t ad_pread (struct ad_fd *, void *, size_t, off_t);
537 extern ssize_t ad_write (struct adouble *, const u_int32_t, off_t,
538 const int, const char *, const size_t);
539 extern ssize_t adf_pread (struct ad_fd *, void *, size_t, off_t);
540 extern ssize_t adf_pwrite (struct ad_fd *, const void *, size_t, off_t);
541 extern int ad_dtruncate (struct adouble *, const off_t);
542 extern int ad_rtruncate (struct adouble *, const off_t);
545 extern off_t ad_size (const struct adouble *, const u_int32_t );
548 extern void *ad_mmapread (struct adouble *, const u_int32_t,
549 const off_t, const size_t);
550 extern void *ad_mmapwrite (struct adouble *, const u_int32_t,
551 const off_t, const int, const size_t);
552 #define ad_munmap(buf, len) (munmap((buf), (len)))
555 extern int ad_setdate (struct adouble *, unsigned int, u_int32_t);
556 extern int ad_getdate (const struct adouble *, unsigned int, u_int32_t *);
559 extern int ad_setattr (const struct adouble *, const u_int16_t);
560 extern int ad_getattr (const struct adouble *, u_int16_t *);
562 /* Note: starting with Netatalk 2.1 we do NOT alway set the name */
563 extern int ad_setname (struct adouble *, const char *);
565 #if AD_VERSION == AD_VERSION2
566 extern int ad_setid (struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const u_int32_t, const void *);
567 extern u_int32_t ad_getid (struct adouble *, const dev_t, const ino_t, const cnid_t, const void *);
568 extern u_int32_t ad_forcegetid (struct adouble *adp);
570 #define ad_setid(a, b, c)
574 extern int ad_readfile_init(const struct adouble *ad,
575 const int eid, off_t *off,
580 #ifdef HAVE_SENDFILE_WRITE
581 extern ssize_t ad_writefile (struct adouble *, const int,
582 const int, off_t, const int, const size_t);
583 #endif /* HAVE_SENDFILE_WRITE */
586 #endif /* _ATALK_ADOUBLE_H */