2 * $Id: adouble.h,v 1.21.6.12 2004-02-20 20:53:14 bfernhomberg 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()
49 #if defined(HAVE_PREAD) && !defined(SOLARIS)
53 #define _XOPEN_SOURCE 500
56 #include <sys/types.h>
65 #include <sys/cdefs.h>
72 #ifdef HAVE_SYS_TIME_H
75 #include <netatalk/endian.h>
78 #define AD_VERSION1 0x00010000
79 #define AD_VERSION2 0x00020000
80 #define AD_VERSION AD_VERSION2
83 * AppleDouble entry IDs.
88 #define ADEID_COMMENT 4
89 #define ADEID_ICONBW 5
90 #define ADEID_ICONCOL 6
91 #define ADEID_FILEI 7 /* v1, replaced by: */
92 #define ADEID_FILEDATESI 8 /* this */
93 #define ADEID_FINDERI 9
94 #define ADEID_MACFILEI 10 /* we don't use this */
95 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
96 #define ADEID_MSDOSFILEI 12 /* we don't use this */
97 #define ADEID_SHORTNAME 13
98 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
101 #if AD_VERSION == AD_VERSION1
104 /* netatalk private note fileid reused DID */
105 #define ADEID_PRIVDEV 16
106 #define ADEID_PRIVINO 17
107 #define ADEID_PRIVSYN 18 /* in synch with database */
108 #define ADEID_PRIVID 19
110 #define AD_DEV 0x80444556
111 #define AD_INO 0x80494E4F
112 #define AD_SYN 0x8053594E
113 #define AD_ID 0x8053567E
118 #define AD_APPLESINGLE_MAGIC 0x00051600
119 #define AD_APPLEDOUBLE_MAGIC 0x00051607
120 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
123 /* sizes of relevant entry bits */
124 #define ADEDLEN_MAGIC 4
125 #define ADEDLEN_VERSION 4
126 #define ADEDLEN_FILLER 16
127 #define ADEDLEN_NENTRIES 2
130 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
131 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
132 #define AD_ENTRY_LEN 12 /* size of a single entry header */
134 /* v1 field widths */
135 #define ADEDLEN_NAME 255
136 #define ADEDLEN_COMMENT 200
137 #define ADEDLEN_FILEI 16
138 #define ADEDLEN_FINDERI 32
140 /* v2 field widths */
141 #define ADEDLEN_FILEDATESI 16
142 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
143 #define ADEDLEN_AFPFILEI 4
144 #define ADEDLEN_MACFILEI 4
145 #define ADEDLEN_PRODOSFILEI 8
146 #define ADEDLEN_MSDOSFILEI 2
147 #define ADEDLEN_DID 4
148 #define ADEDLEN_PRIVDEV 8
149 #define ADEDLEN_PRIVINO 8
150 #define ADEDLEN_PRIVSYN 8
151 #define ADEDLEN_PRIVID 4
153 #define ADEID_NUM_V1 5
154 #define ADEID_NUM_V2 13
157 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT +ADEDLEN_FILEI +ADEDLEN_FINDERI+\
158 ADEID_NUM_V1*AD_ENTRY_LEN)
160 #if AD_DATASZ1 != 589
161 #error bad size for AD_DATASZ1
164 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI +ADEDLEN_SHORTNAME +ADEDLEN_PRODOSFILEI \
165 +ADEDLEN_PRIVDEV +ADEDLEN_PRIVINO +ADEDLEN_PRIVSYN+ ADEDLEN_PRIVID)
168 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + (ADEID_NUM_V2 -ADEID_NUM_V1)*AD_ENTRY_LEN)
170 #if AD_DATASZ2 != 741
171 #error bad size for AD_DATASZ2
174 #define AD_DATASZ_MAX 1024
175 #if AD_VERSION == AD_VERSION1
176 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
177 #elif AD_VERSION == AD_VERSION2
178 #define AD_DATASZ AD_DATASZ2
182 * some legacy defines from netatalk-990130
183 * (to keep from breaking certain packages)
187 #define ADEDOFF_RFORK 589
188 #define ADEDOFF_NAME 86
189 #define ADEDOFF_COMMENT 341
190 #define ADEDOFF_FINDERI 557
191 #ifndef ADEDOFF_FILEI
192 #define ADEDOFF_FILEI 541
195 typedef u_int32_t cnid_t;
198 * The header of the AppleDouble Header File looks like this:
204 * Home File System 16 (this becomes filler in ad v2)
205 * Number of Entries 2
206 * Entry Descriptors for each entry:
217 typedef struct adf_lock_t {
220 int *refcount; /* handle read locks with multiple users */
232 adf_lock_t *adf_lock;
233 int adf_refcount, adf_lockcount, adf_lockmax;
236 /* some header protection */
237 #define AD_INITED 0xad494e54 /* ad"INT" */
240 u_int32_t ad_version;
241 char ad_filler[ 16 ];
242 struct ad_entry ad_eid[ ADEID_MAX ];
243 struct ad_fd ad_df, ad_hf;
244 int ad_flags, ad_inited;
245 int ad_refcount; /* used in afpd/ofork.c */
246 off_t ad_rlen; /* ressource fork len with AFP 3.0
247 the header parameter size is too small.
249 #ifdef USE_MMAPPED_HEADERS
252 char ad_data[AD_DATASZ_MAX];
256 #define ADFLAGS_DF (1<<0)
257 #define ADFLAGS_HF (1<<1)
258 #define ADFLAGS_DIR (1<<2)
259 #define ADFLAGS_NOADOUBLE (1<<3)
260 #define ADFLAGS_V1COMPAT (1<<4)
261 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
264 #define ADLOCK_CLR (0)
265 #define ADLOCK_RD (1<<0)
266 #define ADLOCK_WR (1<<1)
267 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
268 #define ADLOCK_UPGRADE (1<<2)
269 #define ADLOCK_FILELOCK (1<<3)
271 /* we use this so that we can use the same mechanism for both byte
272 * locks and file synchronization locks. i do this by co-opting either
273 * first bits on 32-bit machines or shifting above the last bit on
274 * 64-bit machines. this only matters for the data fork. */
275 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
276 /* synchronization locks */
277 #define AD_FILELOCK_BASE (0x80000000)
279 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
283 * AD_FILELOCK_BASE case
285 #if _FILE_OFFSET_BITS == 64
286 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
288 #define BYTELOCK_MAX (0x7FFFFFFFU)
291 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
292 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
293 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
294 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
295 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
297 /* time stuff. we overload the bits a little. */
298 #define AD_DATE_CREATE 0
299 #define AD_DATE_MODIFY 4
300 #define AD_DATE_BACKUP 8
301 #define AD_DATE_ACCESS 12
302 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
303 AD_DATE_BACKUP | AD_DATE_ACCESS)
304 #define AD_DATE_UNIX (1 << 10)
305 #define AD_DATE_START htonl(0x80000000)
306 #define AD_DATE_DELTA 946684800
307 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
308 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
310 /* private AFPFileInfo bits */
311 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
312 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
313 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
315 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
316 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
317 #define ad_getversion(ad) ((ad)->ad_version)
319 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
320 #define ad_setentrylen(ad,eid,len) \
321 ((ad)->ad_eid[(eid)].ade_len = (len))
322 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
323 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
324 (ad)->ad_eid[(eid)].ade_off)
325 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
326 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
328 #define ad_get_HF_flags(ad) ((ad)->ad_hf.adf_flags)
331 extern void ad_rebuild_header __P((struct adouble *));
332 extern int ad_flush __P((struct adouble *, int));
333 extern int ad_close __P((struct adouble *, int));
336 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
337 const int /*type*/, const off_t /*offset*/,
338 const off_t /*len*/, const int /*user*/));
339 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
341 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
342 const int /*type*/, const off_t /*offset*/,
343 const off_t /*len*/, const int /*user*/));
345 extern int ad_testlock __P((struct adouble * /*adp*/, int /*eid*/, off_t /*off*/));
346 extern int ad_excl_lock __P((struct adouble * /*adp*/, const u_int32_t /*eid*/));
348 #define ad_lock ad_fcntl_lock
349 #define ad_tmplock ad_fcntl_tmplock
350 #define ad_unlock ad_fcntl_unlock
353 extern int ad_setfuid __P((const uid_t ));
354 extern uid_t ad_getfuid __P((void ));
356 extern char *ad_dir __P((const char *));
357 extern char *ad_path __P((const char *, int));
358 extern int ad_mode __P((const char *, int));
359 extern int ad_mkdir __P((const char *, int));
360 extern void ad_init __P((struct adouble *, int ));
362 extern int ad_open __P((const char *, int, int, int, struct adouble *));
363 extern int ad_refresh __P((struct adouble *));
364 extern int ad_stat __P((const char *, struct stat *));
366 /* extend header to RW if R or W (W if R for locking),
372 static __inline__ mode_t ad_hf_mode (mode_t mode)
374 /* fnctl lock need write access */
375 if ((mode & S_IRUSR))
377 if ((mode & S_IRGRP))
379 if ((mode & S_IROTH))
382 /* if write mode set add read mode */
383 if ((mode & S_IWUSR))
385 if ((mode & S_IWGRP))
387 if ((mode & S_IWOTH))
393 extern mode_t ad_hf_mode __P((mode_t ));
396 /* ad_read.c/ad_write.c */
397 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
398 const off_t, char *, const size_t));
399 extern ssize_t ad_pread __P((struct ad_fd *, void *, size_t, off_t));
401 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
402 const int, const char *, const size_t));
404 extern ssize_t adf_pread __P((struct ad_fd *, void *, size_t, off_t));
405 extern ssize_t adf_pwrite __P((struct ad_fd *, const void *, size_t, off_t));
407 extern int ad_dtruncate __P((struct adouble *, const off_t));
408 extern int ad_rtruncate __P((struct adouble *, const off_t));
411 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
414 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
415 const off_t, const size_t));
416 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
417 const off_t, const int, const size_t));
418 #define ad_munmap(buf, len) (munmap((buf), (len)))
421 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
422 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
425 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
426 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
428 #if AD_VERSION == AD_VERSION2
429 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 *));
431 #define ad_setid(a, b, c)
435 extern ssize_t ad_readfile __P((const struct adouble *, const int,
436 const int, off_t, const size_t));
440 #ifdef HAVE_SENDFILE_WRITE
441 extern ssize_t ad_writefile __P((struct adouble *, const int,
442 const int, off_t, const int, const size_t));