2 * $Id: adouble.h,v 1.21.6.6 2004-01-31 14:26:24 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
31 #ifdef HAVE_SYS_TIME_H
35 /* -------------------
36 * need pread() and pwrite()
55 #define _XOPEN_SOURCE 500
68 #include <sys/cdefs.h>
69 #include <sys/types.h>
72 #include <netatalk/endian.h>
75 #define AD_VERSION1 0x00010000
76 #define AD_VERSION2 0x00020000
77 #define AD_VERSION AD_VERSION2
80 * AppleDouble entry IDs.
85 #define ADEID_COMMENT 4
86 #define ADEID_ICONBW 5
87 #define ADEID_ICONCOL 6
88 #define ADEID_FILEI 7 /* v1, replaced by: */
89 #define ADEID_FILEDATESI 8 /* this */
90 #define ADEID_FINDERI 9
91 #define ADEID_MACFILEI 10 /* we don't use this */
92 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
93 #define ADEID_MSDOSFILEI 12 /* we don't use this */
94 #define ADEID_SHORTNAME 13
95 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
98 #if AD_VERSION == AD_VERSION1
101 /* netatalk private note fileid reused DID */
102 #define ADEID_PRIVDEV 16
103 #define ADEID_PRIVINO 17
104 #define ADEID_PRIVSYN 18 /* in synch with database */
106 #define AD_DEV 0x80444556
107 #define AD_INO 0x80494E4F
108 #define AD_SYN 0x8053594E
113 #define AD_APPLESINGLE_MAGIC 0x00051600
114 #define AD_APPLEDOUBLE_MAGIC 0x00051607
115 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
118 /* sizes of relevant entry bits */
119 #define ADEDLEN_MAGIC 4
120 #define ADEDLEN_VERSION 4
121 #define ADEDLEN_FILLER 16
122 #define ADEDLEN_NENTRIES 2
125 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
126 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
127 #define AD_ENTRY_LEN 12 /* size of a single entry header */
129 /* v1 field widths */
130 #define ADEDLEN_NAME 255
131 #define ADEDLEN_COMMENT 200
132 #define ADEDLEN_FILEI 16
133 #define ADEDLEN_FINDERI 32
135 /* v2 field widths */
136 #define ADEDLEN_FILEDATESI 16
137 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
138 #define ADEDLEN_AFPFILEI 4
139 #define ADEDLEN_MACFILEI 4
140 #define ADEDLEN_PRODOSFILEI 8
141 #define ADEDLEN_MSDOSFILEI 2
142 #define ADEDLEN_DID 4
143 #define ADEDLEN_PRIVDEV 8
144 #define ADEDLEN_PRIVINO 8
145 #define ADEDLEN_PRIVSYN 8
147 #define ADEID_NUM_V1 5
148 #define ADEID_NUM_V2 12
151 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT +ADEDLEN_FILEI +ADEDLEN_FINDERI+\
152 ADEID_NUM_V1*AD_ENTRY_LEN)
154 #if AD_DATASZ1 != 589
155 #error bad size for AD_DATASZ1
158 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI +ADEDLEN_SHORTNAME +ADEDLEN_PRODOSFILEI \
159 +ADEDLEN_PRIVDEV +ADEDLEN_PRIVINO +ADEDLEN_PRIVSYN)
162 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + (ADEID_NUM_V2 -ADEID_NUM_V1)*AD_ENTRY_LEN)
164 #if AD_DATASZ2 != 725
165 #error bad size for AD_DATASZ2
168 #define AD_DATASZ_MAX 1024
169 #if AD_VERSION == AD_VERSION1
170 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
171 #elif AD_VERSION == AD_VERSION2
172 #define AD_DATASZ AD_DATASZ2
176 * some legacy defines from netatalk-990130
177 * (to keep from breaking certain packages)
181 #define ADEDOFF_RFORK 589
182 #define ADEDOFF_NAME 86
183 #define ADEDOFF_COMMENT 341
184 #define ADEDOFF_FINDERI 557
185 #ifndef ADEDOFF_FILEI
186 #define ADEDOFF_FILEI 541
189 typedef u_int32_t cnid_t;
192 * The header of the AppleDouble Header File looks like this:
198 * Home File System 16 (this becomes filler in ad v2)
199 * Number of Entries 2
200 * Entry Descriptors for each entry:
211 typedef struct adf_lock_t {
214 int *refcount; /* handle read locks with multiple users */
226 adf_lock_t *adf_lock;
227 int adf_refcount, adf_lockcount, adf_lockmax;
230 /* some header protection */
231 #define AD_INITED 0xad494e54 /* ad"INT" */
234 u_int32_t ad_version;
235 char ad_filler[ 16 ];
236 struct ad_entry ad_eid[ ADEID_MAX ];
237 struct ad_fd ad_df, ad_hf;
238 int ad_flags, ad_inited;
239 int ad_refcount; /* used in afpd/ofork.c */
240 off_t ad_rlen; /* ressource fork len with AFP 3.0
241 the header parameter size is too small.
243 #ifdef USE_MMAPPED_HEADERS
246 char ad_data[AD_DATASZ_MAX];
250 #define ADFLAGS_DF (1<<0)
251 #define ADFLAGS_HF (1<<1)
252 #define ADFLAGS_DIR (1<<2)
253 #define ADFLAGS_NOADOUBLE (1<<3)
254 #define ADFLAGS_V1COMPAT (1<<4)
255 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
258 #define ADLOCK_CLR (0)
259 #define ADLOCK_RD (1<<0)
260 #define ADLOCK_WR (1<<1)
261 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
262 #define ADLOCK_UPGRADE (1<<2)
263 #define ADLOCK_FILELOCK (1<<3)
265 /* we use this so that we can use the same mechanism for both byte
266 * locks and file synchronization locks. i do this by co-opting either
267 * first bits on 32-bit machines or shifting above the last bit on
268 * 64-bit machines. this only matters for the data fork. */
269 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
270 /* synchronization locks */
271 #define AD_FILELOCK_BASE (0x80000000)
273 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
277 * AD_FILELOCK_BASE case
279 #if _FILE_OFFSET_BITS == 64
280 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
282 #define BYTELOCK_MAX (0x7FFFFFFFU)
285 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
286 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
287 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
288 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
289 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
291 /* time stuff. we overload the bits a little. */
292 #define AD_DATE_CREATE 0
293 #define AD_DATE_MODIFY 4
294 #define AD_DATE_BACKUP 8
295 #define AD_DATE_ACCESS 12
296 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
297 AD_DATE_BACKUP | AD_DATE_ACCESS)
298 #define AD_DATE_UNIX (1 << 10)
299 #define AD_DATE_START htonl(0x80000000)
300 #define AD_DATE_DELTA 946684800
301 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
302 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
304 /* private AFPFileInfo bits */
305 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
306 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
307 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
309 #define ad_dfileno(ad) ((ad)->ad_df.adf_fd)
310 #define ad_hfileno(ad) ((ad)->ad_hf.adf_fd)
311 #define ad_getversion(ad) ((ad)->ad_version)
313 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
314 #define ad_setentrylen(ad,eid,len) \
315 ((ad)->ad_eid[(eid)].ade_len = (len))
316 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
317 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
318 (ad)->ad_eid[(eid)].ade_off)
319 #define ad_getoflags(ad,adf) (((adf)&ADFLAGS_HF) ? \
320 (ad)->ad_hf.adf_flags : (ad)->ad_df.adf_flags)
322 #define ad_get_HF_flags(ad) ((ad)->ad_hf.adf_flags)
325 extern void ad_rebuild_header __P((struct adouble *));
326 extern int ad_flush __P((struct adouble *, int));
327 extern int ad_close __P((struct adouble *, int));
330 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
331 const int /*type*/, const off_t /*offset*/,
332 const off_t /*len*/, const int /*user*/));
333 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
335 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
336 const int /*type*/, const off_t /*offset*/,
337 const off_t /*len*/, const int /*user*/));
339 extern int ad_testlock __P((struct adouble * /*adp*/, int /*eid*/, off_t /*off*/));
340 extern int ad_excl_lock __P((struct adouble * /*adp*/, const u_int32_t /*eid*/));
342 #define ad_lock ad_fcntl_lock
343 #define ad_tmplock ad_fcntl_tmplock
344 #define ad_unlock ad_fcntl_unlock
347 extern int ad_setfuid __P((const uid_t ));
348 extern uid_t ad_getfuid __P((void ));
350 extern char *ad_dir __P((const char *));
351 extern char *ad_path __P((const char *, int));
352 extern int ad_mode __P((const char *, int));
353 extern int ad_mkdir __P((const char *, int));
354 extern void ad_init __P((struct adouble *, int ));
356 extern int ad_open __P((const char *, int, int, int, struct adouble *));
357 extern int ad_refresh __P((struct adouble *));
358 extern int ad_stat __P((const char *, struct stat *));
360 /* extend header to RW if R or W (W if R for locking),
363 static __inline__ mode_t ad_hf_mode (mode_t mode)
365 /* fnctl lock need write access */
366 if ((mode & S_IRUSR))
368 if ((mode & S_IRGRP))
370 if ((mode & S_IROTH))
373 /* if write mode set add read mode */
374 if ((mode & S_IWUSR))
376 if ((mode & S_IWGRP))
378 if ((mode & S_IWOTH))
384 extern mode_t ad_hf_mode __P((mode_t ));
387 /* ad_read.c/ad_write.c */
388 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
389 const off_t, char *, const size_t));
390 extern ssize_t ad_pread __P((struct ad_fd *, void *, size_t, off_t));
392 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
393 const int, const char *, const size_t));
395 extern ssize_t adf_pread __P((struct ad_fd *, void *, size_t, off_t));
396 extern ssize_t adf_pwrite __P((struct ad_fd *, const void *, size_t, off_t));
398 extern int ad_dtruncate __P((struct adouble *, const off_t));
399 extern int ad_rtruncate __P((struct adouble *, const off_t));
402 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
405 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
406 const off_t, const size_t));
407 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
408 const off_t, const int, const size_t));
409 #define ad_munmap(buf, len) (munmap((buf), (len)))
412 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
413 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
416 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
417 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
419 #if AD_VERSION == AD_VERSION2
420 extern int ad_setid __P((struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const void *));
422 #define ad_setid(a, b, c)
426 extern ssize_t ad_readfile __P((const struct adouble *, const int,
427 const int, off_t, const size_t));
431 #ifdef HAVE_SENDFILE_WRITE
432 extern ssize_t ad_writefile __P((struct adouble *, const int,
433 const int, off_t, const int, const size_t));