2 * $Id: adouble.h,v 1.21.6.10 2004-02-20 19:56:15 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()
52 #include <sys/cdefs.h>
53 #include <sys/types.h>
60 #define _XOPEN_SOURCE 500
74 #ifdef HAVE_SYS_TIME_H
77 #include <netatalk/endian.h>
80 #define AD_VERSION1 0x00010000
81 #define AD_VERSION2 0x00020000
82 #define AD_VERSION AD_VERSION2
85 * AppleDouble entry IDs.
90 #define ADEID_COMMENT 4
91 #define ADEID_ICONBW 5
92 #define ADEID_ICONCOL 6
93 #define ADEID_FILEI 7 /* v1, replaced by: */
94 #define ADEID_FILEDATESI 8 /* this */
95 #define ADEID_FINDERI 9
96 #define ADEID_MACFILEI 10 /* we don't use this */
97 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
98 #define ADEID_MSDOSFILEI 12 /* we don't use this */
99 #define ADEID_SHORTNAME 13
100 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
103 #if AD_VERSION == AD_VERSION1
106 /* netatalk private note fileid reused DID */
107 #define ADEID_PRIVDEV 16
108 #define ADEID_PRIVINO 17
109 #define ADEID_PRIVSYN 18 /* in synch with database */
110 #define ADEID_PRIVID 19
112 #define AD_DEV 0x80444556
113 #define AD_INO 0x80494E4F
114 #define AD_SYN 0x8053594E
115 #define AD_ID 0x8053567E
120 #define AD_APPLESINGLE_MAGIC 0x00051600
121 #define AD_APPLEDOUBLE_MAGIC 0x00051607
122 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
125 /* sizes of relevant entry bits */
126 #define ADEDLEN_MAGIC 4
127 #define ADEDLEN_VERSION 4
128 #define ADEDLEN_FILLER 16
129 #define ADEDLEN_NENTRIES 2
132 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
133 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
134 #define AD_ENTRY_LEN 12 /* size of a single entry header */
136 /* v1 field widths */
137 #define ADEDLEN_NAME 255
138 #define ADEDLEN_COMMENT 200
139 #define ADEDLEN_FILEI 16
140 #define ADEDLEN_FINDERI 32
142 /* v2 field widths */
143 #define ADEDLEN_FILEDATESI 16
144 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
145 #define ADEDLEN_AFPFILEI 4
146 #define ADEDLEN_MACFILEI 4
147 #define ADEDLEN_PRODOSFILEI 8
148 #define ADEDLEN_MSDOSFILEI 2
149 #define ADEDLEN_DID 4
150 #define ADEDLEN_PRIVDEV 8
151 #define ADEDLEN_PRIVINO 8
152 #define ADEDLEN_PRIVSYN 8
153 #define ADEDLEN_PRIVID 4
155 #define ADEID_NUM_V1 5
156 #define ADEID_NUM_V2 13
159 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT +ADEDLEN_FILEI +ADEDLEN_FINDERI+\
160 ADEID_NUM_V1*AD_ENTRY_LEN)
162 #if AD_DATASZ1 != 589
163 #error bad size for AD_DATASZ1
166 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI +ADEDLEN_SHORTNAME +ADEDLEN_PRODOSFILEI \
167 +ADEDLEN_PRIVDEV +ADEDLEN_PRIVINO +ADEDLEN_PRIVSYN+ ADEDLEN_PRIVID)
170 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + (ADEID_NUM_V2 -ADEID_NUM_V1)*AD_ENTRY_LEN)
172 #if AD_DATASZ2 != 741
173 #error bad size for AD_DATASZ2
176 #define AD_DATASZ_MAX 1024
177 #if AD_VERSION == AD_VERSION1
178 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
179 #elif AD_VERSION == AD_VERSION2
180 #define AD_DATASZ AD_DATASZ2
184 * some legacy defines from netatalk-990130
185 * (to keep from breaking certain packages)
189 #define ADEDOFF_RFORK 589
190 #define ADEDOFF_NAME 86
191 #define ADEDOFF_COMMENT 341
192 #define ADEDOFF_FINDERI 557
193 #ifndef ADEDOFF_FILEI
194 #define ADEDOFF_FILEI 541
197 typedef u_int32_t cnid_t;
200 * The header of the AppleDouble Header File looks like this:
206 * Home File System 16 (this becomes filler in ad v2)
207 * Number of Entries 2
208 * Entry Descriptors for each entry:
219 typedef struct adf_lock_t {
222 int *refcount; /* handle read locks with multiple users */
234 adf_lock_t *adf_lock;
235 int adf_refcount, adf_lockcount, adf_lockmax;
238 /* some header protection */
239 #define AD_INITED 0xad494e54 /* ad"INT" */
242 u_int32_t ad_version;
243 char ad_filler[ 16 ];
244 struct ad_entry ad_eid[ ADEID_MAX ];
245 struct ad_fd ad_df, ad_hf;
246 int ad_flags, ad_inited;
247 int ad_refcount; /* used in afpd/ofork.c */
248 off_t ad_rlen; /* ressource fork len with AFP 3.0
249 the header parameter size is too small.
251 #ifdef USE_MMAPPED_HEADERS
254 char ad_data[AD_DATASZ_MAX];
258 #define ADFLAGS_DF (1<<0)
259 #define ADFLAGS_HF (1<<1)
260 #define ADFLAGS_DIR (1<<2)
261 #define ADFLAGS_NOADOUBLE (1<<3)
262 #define ADFLAGS_V1COMPAT (1<<4)
263 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
266 #define ADLOCK_CLR (0)
267 #define ADLOCK_RD (1<<0)
268 #define ADLOCK_WR (1<<1)
269 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
270 #define ADLOCK_UPGRADE (1<<2)
271 #define ADLOCK_FILELOCK (1<<3)
273 /* we use this so that we can use the same mechanism for both byte
274 * locks and file synchronization locks. i do this by co-opting either
275 * first bits on 32-bit machines or shifting above the last bit on
276 * 64-bit machines. this only matters for the data fork. */
277 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
278 /* synchronization locks */
279 #define AD_FILELOCK_BASE (0x80000000)
281 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
285 * AD_FILELOCK_BASE case
287 #if _FILE_OFFSET_BITS == 64
288 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
290 #define BYTELOCK_MAX (0x7FFFFFFFU)
293 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
294 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
295 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
296 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
297 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
299 /* time stuff. we overload the bits a little. */
300 #define AD_DATE_CREATE 0
301 #define AD_DATE_MODIFY 4
302 #define AD_DATE_BACKUP 8
303 #define AD_DATE_ACCESS 12
304 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
305 AD_DATE_BACKUP | AD_DATE_ACCESS)
306 #define AD_DATE_UNIX (1 << 10)
307 #define AD_DATE_START htonl(0x80000000)
308 #define AD_DATE_DELTA 946684800
309 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
310 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
312 /* private AFPFileInfo bits */
313 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
314 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
315 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
317 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
318 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
319 #define ad_getversion(ad) ((ad)->ad_version)
321 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
322 #define ad_setentrylen(ad,eid,len) \
323 ((ad)->ad_eid[(eid)].ade_len = (len))
324 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
325 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
326 (ad)->ad_eid[(eid)].ade_off)
327 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
328 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
330 #define ad_get_HF_flags(ad) ((ad)->ad_hf.adf_flags)
333 extern void ad_rebuild_header __P((struct adouble *));
334 extern int ad_flush __P((struct adouble *, int));
335 extern int ad_close __P((struct adouble *, int));
338 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
339 const int /*type*/, const off_t /*offset*/,
340 const off_t /*len*/, const int /*user*/));
341 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
343 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
344 const int /*type*/, const off_t /*offset*/,
345 const off_t /*len*/, const int /*user*/));
347 extern int ad_testlock __P((struct adouble * /*adp*/, int /*eid*/, off_t /*off*/));
348 extern int ad_excl_lock __P((struct adouble * /*adp*/, const u_int32_t /*eid*/));
350 #define ad_lock ad_fcntl_lock
351 #define ad_tmplock ad_fcntl_tmplock
352 #define ad_unlock ad_fcntl_unlock
355 extern int ad_setfuid __P((const uid_t ));
356 extern uid_t ad_getfuid __P((void ));
358 extern char *ad_dir __P((const char *));
359 extern char *ad_path __P((const char *, int));
360 extern int ad_mode __P((const char *, int));
361 extern int ad_mkdir __P((const char *, int));
362 extern void ad_init __P((struct adouble *, int ));
364 extern int ad_open __P((const char *, int, int, int, struct adouble *));
365 extern int ad_refresh __P((struct adouble *));
366 extern int ad_stat __P((const char *, struct stat *));
368 /* extend header to RW if R or W (W if R for locking),
374 static __inline__ mode_t ad_hf_mode (mode_t mode)
376 /* fnctl lock need write access */
377 if ((mode & S_IRUSR))
379 if ((mode & S_IRGRP))
381 if ((mode & S_IROTH))
384 /* if write mode set add read mode */
385 if ((mode & S_IWUSR))
387 if ((mode & S_IWGRP))
389 if ((mode & S_IWOTH))
395 extern mode_t ad_hf_mode __P((mode_t ));
398 /* ad_read.c/ad_write.c */
399 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
400 const off_t, char *, const size_t));
401 extern ssize_t ad_pread __P((struct ad_fd *, void *, size_t, off_t));
403 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
404 const int, const char *, const size_t));
406 extern ssize_t adf_pread __P((struct ad_fd *, void *, size_t, off_t));
407 extern ssize_t adf_pwrite __P((struct ad_fd *, const void *, size_t, off_t));
409 extern int ad_dtruncate __P((struct adouble *, const off_t));
410 extern int ad_rtruncate __P((struct adouble *, const off_t));
413 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
416 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
417 const off_t, const size_t));
418 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
419 const off_t, const int, const size_t));
420 #define ad_munmap(buf, len) (munmap((buf), (len)))
423 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
424 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
427 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
428 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
430 #if AD_VERSION == AD_VERSION2
431 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 *));
433 #define ad_setid(a, b, c)
437 extern ssize_t ad_readfile __P((const struct adouble *, const int,
438 const int, off_t, const size_t));
442 #ifdef HAVE_SENDFILE_WRITE
443 extern ssize_t ad_writefile __P((struct adouble *, const int,
444 const int, off_t, const int, const size_t));