2 * $Id: adouble.h,v 1.21.6.20.2.8 2008-11-25 15:16:33 didg 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
25 #ifndef _ATALK_ADOUBLE_H
26 #define _ATALK_ADOUBLE_H
32 /* -------------------
33 * need pread() and pwrite()
50 Still have to figure out which platforms really
51 need _XOPEN_SOURCE defined for pread.
53 #if defined(HAVE_PREAD) && !defined(SOLARIS) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(TRU64)
57 #define _XOPEN_SOURCE 500
60 #include <sys/types.h>
69 #include <sys/cdefs.h>
76 #ifdef HAVE_SYS_TIME_H
79 #include <netatalk/endian.h>
82 #define AD_VERSION1 0x00010000
83 #define AD_VERSION2 0x00020000
84 #define AD_VERSION2_OSX 0x00020001
85 #define AD_VERSION AD_VERSION2
88 * AppleDouble entry IDs.
93 #define ADEID_COMMENT 4
94 #define ADEID_ICONBW 5
95 #define ADEID_ICONCOL 6
96 #define ADEID_FILEI 7 /* v1, replaced by: */
97 #define ADEID_FILEDATESI 8 /* this */
98 #define ADEID_FINDERI 9
99 #define ADEID_MACFILEI 10 /* we don't use this */
100 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
101 #define ADEID_MSDOSFILEI 12 /* we don't use this */
102 #define ADEID_SHORTNAME 13
103 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
106 #if AD_VERSION == AD_VERSION1
109 /* netatalk private note fileid reused DID */
110 #define ADEID_PRIVDEV 16
111 #define ADEID_PRIVINO 17
112 #define ADEID_PRIVSYN 18 /* in synch with database */
113 #define ADEID_PRIVID 19
115 #define AD_DEV 0x80444556
116 #define AD_INO 0x80494E4F
117 #define AD_SYN 0x8053594E
118 #define AD_ID 0x8053567E
123 #define AD_APPLESINGLE_MAGIC 0x00051600
124 #define AD_APPLEDOUBLE_MAGIC 0x00051607
125 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
128 /* sizes of relevant entry bits */
129 #define ADEDLEN_MAGIC 4
130 #define ADEDLEN_VERSION 4
131 #define ADEDLEN_FILLER 16
132 #define ADEDLEN_NENTRIES 2
135 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
136 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
137 #define AD_ENTRY_LEN 12 /* size of a single entry header */
139 /* v1 field widths */
140 #define ADEDLEN_NAME 255
141 #define ADEDLEN_COMMENT 200
142 #define ADEDLEN_FILEI 16
143 #define ADEDLEN_FINDERI 32
145 /* v2 field widths */
146 #define ADEDLEN_FILEDATESI 16
147 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
148 #define ADEDLEN_AFPFILEI 4
149 #define ADEDLEN_MACFILEI 4
150 #define ADEDLEN_PRODOSFILEI 8
151 #define ADEDLEN_MSDOSFILEI 2
152 #define ADEDLEN_DID 4
153 #define ADEDLEN_PRIVDEV 8
154 #define ADEDLEN_PRIVINO 8
155 #define ADEDLEN_PRIVSYN 8
156 #define ADEDLEN_PRIVID 4
158 #define ADEID_NUM_V1 5
159 #define ADEID_NUM_V2 13
162 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT +ADEDLEN_FILEI +ADEDLEN_FINDERI+\
163 ADEID_NUM_V1*AD_ENTRY_LEN)
165 #if AD_DATASZ1 != 589
166 #error bad size for AD_DATASZ1
169 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI +ADEDLEN_SHORTNAME +ADEDLEN_PRODOSFILEI \
170 +ADEDLEN_PRIVDEV +ADEDLEN_PRIVINO +ADEDLEN_PRIVSYN+ ADEDLEN_PRIVID)
173 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + (ADEID_NUM_V2 -ADEID_NUM_V1)*AD_ENTRY_LEN)
175 #if AD_DATASZ2 != 741
176 #error bad size for AD_DATASZ2
179 #define AD_DATASZ_MAX 1024
180 #if AD_VERSION == AD_VERSION1
181 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
182 #elif AD_VERSION == AD_VERSION2
183 #define AD_DATASZ AD_DATASZ2
187 * some legacy defines from netatalk-990130
188 * (to keep from breaking certain packages)
192 #define ADEDOFF_RFORK 589
193 #define ADEDOFF_NAME 86
194 #define ADEDOFF_COMMENT 341
195 #define ADEDOFF_FINDERI 557
196 #ifndef ADEDOFF_FILEI
197 #define ADEDOFF_FILEI 541
200 typedef u_int32_t cnid_t;
203 * The header of the AppleDouble Header File looks like this:
209 * Home File System 16 (this becomes filler in ad v2)
210 * Number of Entries 2
211 * Entry Descriptors for each entry:
222 typedef struct adf_lock_t {
225 int *refcount; /* handle read locks with multiple users */
237 adf_lock_t *adf_lock;
238 int adf_refcount, adf_lockcount, adf_lockmax;
241 /* some header protection */
242 #define AD_INITED 0xad494e54 /* ad"INT" */
245 u_int32_t ad_version;
246 char ad_filler[ 16 ];
247 struct ad_entry ad_eid[ ADEID_MAX ];
248 struct ad_fd ad_df, ad_hf;
252 int ad_refcount; /* used in afpd/ofork.c */
253 off_t ad_rlen; /* ressource fork len with AFP 3.0
254 the header parameter size is too small.
256 char *ad_m_name; /* mac name for open fork */
259 char *(*ad_path)(const char *, int);
261 #ifdef USE_MMAPPED_HEADERS
264 char ad_data[AD_DATASZ_MAX];
268 #define ADFLAGS_DF (1<<0)
269 #define ADFLAGS_HF (1<<1)
270 #define ADFLAGS_DIR (1<<2)
271 #define ADFLAGS_NOADOUBLE (1<<3)
272 #define ADFLAGS_V1COMPAT (1<<4)
273 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
274 #define ADFLAGS_RDONLY (1<<6) /* don't try readwrite */
275 #define ADFLAGS_CREATE (1<<7)
277 /* adouble v2 cnid cache */
278 #define ADVOL_NODEV (1 << 0)
279 #define ADVOL_CACHE (1 << 1)
280 /* adouble unix priv */
281 #define ADVOL_UNIXPRIV (1 << 2)
282 /* dot files (.DS_Store) are invisible) */
283 #define ADVOL_INVDOTS (1 << 3)
286 #define ADLOCK_CLR (0)
287 #define ADLOCK_RD (1<<0)
288 #define ADLOCK_WR (1<<1)
289 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
290 #define ADLOCK_UPGRADE (1<<2)
291 #define ADLOCK_FILELOCK (1<<3)
293 /* we use this so that we can use the same mechanism for both byte
294 * locks and file synchronization locks. i do this by co-opting either
295 * first bits on 32-bit machines or shifting above the last bit on
296 * 64-bit machines. this only matters for the data fork. */
297 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
298 /* synchronization locks */
299 #define AD_FILELOCK_BASE (0x80000000)
301 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
305 * AD_FILELOCK_BASE case
307 #if _FILE_OFFSET_BITS == 64
308 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
310 /* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
312 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
314 #define BYTELOCK_MAX (0x7FFFFFFFU)
318 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
319 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
320 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
321 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
322 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
324 /* time stuff. we overload the bits a little. */
325 #define AD_DATE_CREATE 0
326 #define AD_DATE_MODIFY 4
327 #define AD_DATE_BACKUP 8
328 #define AD_DATE_ACCESS 12
329 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
330 AD_DATE_BACKUP | AD_DATE_ACCESS)
331 #define AD_DATE_UNIX (1 << 10)
332 #define AD_DATE_START htonl(0x80000000)
333 #define AD_DATE_DELTA 946684800
334 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
335 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
337 /* various finder offset and info bits */
338 #define FINDERINFO_FRTYPEOFF 0
339 #define FINDERINFO_FRCREATOFF 4
341 #define FINDERINFO_FRFLAGOFF 8
342 /* finderinfo flags */
343 #define FINDERINFO_ISONDESK (1)
344 #define FINDERINFO_COLOR (0x0e)
345 #define FINDERINFO_ISHARED (1<<6)
346 #define FINDERINFO_HASNOINITS (1<<7)
347 #define FINDERINFO_HASBEENINITED (1<<8)
348 #define FINDERINFO_HASCUSTOMICON (1<<10)
349 #define FINDERINFO_ISSTATIONNERY (1<<11)
350 #define FINDERINFO_NAMELOCKED (1<<12)
351 #define FINDERINFO_HASBUNDLE (1<<13)
352 #define FINDERINFO_INVISIBLE (1<<14)
353 #define FINDERINFO_ISALIAS (1<<15)
355 #define FINDERINFO_FRVIEWOFF 14
356 #define FINDERINFO_CUSTOMICON 0x4
357 #define FINDERINFO_CLOSEDVIEW 0x100
360 /* private AFPFileInfo bits */
361 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
362 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
363 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
365 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
366 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
367 #define ad_getversion(ad) ((ad)->ad_version)
369 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
370 #define ad_setentrylen(ad,eid,len) \
371 ((ad)->ad_eid[(eid)].ade_len = (len))
372 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
373 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
374 (ad)->ad_eid[(eid)].ade_off)
375 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
376 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
378 #define ad_get_HF_flags(ad) ((ad)->ad_hf.adf_flags)
381 extern void ad_rebuild_header __P((struct adouble *));
382 extern int ad_flush __P((struct adouble *, int));
383 extern int ad_close __P((struct adouble *, int));
386 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
387 const int /*type*/, const off_t /*offset*/,
388 const off_t /*len*/, const int /*user*/));
389 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
391 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
392 const int /*type*/, const off_t /*offset*/,
393 const off_t /*len*/, const int /*user*/));
395 extern int ad_testlock __P((struct adouble * /*adp*/, int /*eid*/, off_t /*off*/));
396 extern int ad_excl_lock __P((struct adouble * /*adp*/, const u_int32_t /*eid*/));
398 #define ad_lock ad_fcntl_lock
399 #define ad_tmplock ad_fcntl_tmplock
400 #define ad_unlock ad_fcntl_unlock
403 extern int ad_setfuid __P((const uid_t ));
404 extern uid_t ad_getfuid __P((void ));
406 extern char *ad_dir __P((const char *));
407 extern char *ad_path __P((const char *, int));
408 extern char *ad_path_osx __P((const char *, int));
410 extern int ad_mode __P((const char *, int));
411 extern int ad_mkdir __P((const char *, int));
412 extern void ad_init __P((struct adouble *, int, int ));
414 extern int ad_open __P((const char *, int, int, int, struct adouble *));
415 extern int ad_refresh __P((struct adouble *));
416 extern int ad_stat __P((const char *, struct stat *));
417 extern int ad_metadata __P((const char *, int, struct adouble *));
420 #define ad_metadata(name, flags, adp) ad_open(name, ADFLAGS_HF|(flags), O_RDONLY, 0666, adp)
423 /* build a resource fork mode from the data fork mode:
424 * remove X mode and extend header to RW if R or W (W if R for locking),
427 static inline mode_t ad_hf_mode (mode_t mode)
429 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
430 /* fnctl lock need write access */
431 if ((mode & S_IRUSR))
433 if ((mode & S_IRGRP))
435 if ((mode & S_IROTH))
438 /* if write mode set add read mode */
439 if ((mode & S_IWUSR))
441 if ((mode & S_IWGRP))
443 if ((mode & S_IWOTH))
449 extern mode_t ad_hf_mode __P((mode_t ));
452 /* ad_read.c/ad_write.c */
453 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
454 const off_t, char *, const size_t));
455 extern ssize_t ad_pread __P((struct ad_fd *, void *, size_t, off_t));
457 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
458 const int, const char *, const size_t));
460 extern ssize_t adf_pread __P((struct ad_fd *, void *, size_t, off_t));
461 extern ssize_t adf_pwrite __P((struct ad_fd *, const void *, size_t, off_t));
463 extern int ad_dtruncate __P((struct adouble *, const off_t));
464 extern int ad_rtruncate __P((struct adouble *, const off_t));
467 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
470 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
471 const off_t, const size_t));
472 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
473 const off_t, const int, const size_t));
474 #define ad_munmap(buf, len) (munmap((buf), (len)))
477 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
478 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
481 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
482 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
484 extern int ad_setname __P((struct adouble *, const char *));
485 #if AD_VERSION == AD_VERSION2
486 extern int ad_setid __P((struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const u_int32_t, const void *));
487 extern u_int32_t ad_getid __P((struct adouble *, const dev_t, const ino_t, const cnid_t, const void *));
489 #define ad_setid(a, b, c)
493 extern ssize_t ad_readfile __P((const struct adouble *, const int,
494 const int, off_t, const size_t));
498 #ifdef HAVE_SENDFILE_WRITE
499 extern ssize_t ad_writefile __P((struct adouble *, const int,
500 const int, off_t, const int, const size_t));