2 * Copyright (c) 1990,1991 Regents of The University of Michigan.
5 * Permission to use, copy, modify, and distribute this software and
6 * its documentation for any purpose and without fee is hereby granted,
7 * provided that the above copyright notice appears in all copies and
8 * that both that copyright notice and this permission notice appear
9 * in supporting documentation, and that the name of The University
10 * of Michigan not be used in advertising or publicity pertaining to
11 * distribution of the software without specific, written prior
12 * permission. This software is supplied as is without expressed or
13 * implied warranties of any kind.
15 * Research Systems Unix Group
16 * The University of Michigan
18 * 535 W. William Street
21 * netatalk@itd.umich.edu
26 * @brief Part of Netatalk's AppleDouble implementatation
29 #ifndef _ATALK_ADOUBLE_H
30 #define _ATALK_ADOUBLE_H
37 #include <sys/types.h>
40 #include <sys/cdefs.h>
45 #include <netatalk/endian.h>
48 #define AD_VERSION2 0x00020000
49 #define AD_VERSION_EA 0x00020002
50 #define AD_VERSION AD_VERSION_EA
53 * AppleDouble entry IDs.
58 #define ADEID_COMMENT 4
59 #define ADEID_ICONBW 5
60 #define ADEID_ICONCOL 6
61 #define ADEID_FILEI 7 /* v1, replaced by: */
62 #define ADEID_FILEDATESI 8 /* this */
63 #define ADEID_FINDERI 9
64 #define ADEID_MACFILEI 10 /* we don't use this */
65 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
66 #define ADEID_MSDOSFILEI 12 /* we don't use this */
67 #define ADEID_SHORTNAME 13
68 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
71 /* netatalk private note fileid reused DID */
72 #define ADEID_PRIVDEV 16
73 #define ADEID_PRIVINO 17
74 #define ADEID_PRIVSYN 18 /* in synch with database */
75 #define ADEID_PRIVID 19
78 /* These are the real ids for these entries, as stored in the adouble file */
79 #define AD_DEV 0x80444556
80 #define AD_INO 0x80494E4F
81 #define AD_SYN 0x8053594E
82 #define AD_ID 0x8053567E
85 #define AD_APPLESINGLE_MAGIC 0x00051600
86 #define AD_APPLEDOUBLE_MAGIC 0x00051607
87 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
89 /* sizes of relevant entry bits */
90 #define ADEDLEN_MAGIC 4
91 #define ADEDLEN_VERSION 4
92 #define ADEDLEN_FILLER 16
93 #define ADEDLEN_NENTRIES 2
94 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + ADEDLEN_FILLER + ADEDLEN_NENTRIES)
95 #define AD_ENTRY_LEN 12 /* size of a single entry header */
98 #define ADEDLEN_NAME 255
99 #define ADEDLEN_COMMENT 200
100 #define ADEDLEN_FILEI 16
101 #define ADEDLEN_FINDERI 32
102 #define ADEDLEN_FILEDATESI 16
103 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
104 #define ADEDLEN_AFPFILEI 4
105 #define ADEDLEN_MACFILEI 4
106 #define ADEDLEN_PRODOSFILEI 8
107 #define ADEDLEN_MSDOSFILEI 2
108 #define ADEDLEN_DID 4
109 #define ADEDLEN_PRIVDEV 8
110 #define ADEDLEN_PRIVINO 8
111 #define ADEDLEN_PRIVSYN 8
112 #define ADEDLEN_PRIVID 4
114 #define ADEID_NUM_V2 13
115 #define ADEID_NUM_EA 5
117 #define AD_DATASZ2 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT + ADEDLEN_FILEI + \
118 ADEDLEN_FINDERI + ADEDLEN_DID + ADEDLEN_AFPFILEI + ADEDLEN_SHORTNAME + \
119 ADEDLEN_PRODOSFILEI + ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + \
120 ADEDLEN_PRIVSYN + ADEDLEN_PRIVID + (ADEID_NUM_V2 * AD_ENTRY_LEN))
121 #if AD_DATASZ2 != 741
122 #error bad size for AD_DATASZ2
125 #define AD_DATASZ_EA (AD_HEADER_LEN + (ADEID_NUM_EA * AD_ENTRY_LEN) + ADEID_FINDERI + \
126 ADEID_COMMENT + ADEID_FILEDATESI + ADEID_AFPFILEI + ADEID_PRIVID)
127 #if AD_DATASZ_EA != 352
128 #error bad size for AD_DATASZ_EA
131 #define AD_DATASZ_MAX 1024
132 #if AD_VERSION == AD_VERSION2
133 #define AD_DATASZ AD_DATASZ2
134 #elif AD_VERSION == AD_VERSION2_EA
135 #define AD_DATASZ AD_DATASZ_EA
138 typedef u_int32_t cnid_t;
145 typedef struct adf_lock_t {
148 int *refcount; /* handle read locks with multiple users */
152 int adf_fd; /* -1: invalid, -2: symlink, -3: Extended Attribute */
159 adf_lock_t *adf_lock;
160 int adf_refcount, adf_lockcount, adf_lockmax;
163 /* some header protection */
164 #define AD_INITED 0xad494e54 /* ad"INT" */
166 struct adouble_fops {
167 char *(*ad_path)(const char *, int);
168 int (*ad_mkrf)(char *);
169 int (*ad_rebuild_header)(struct adouble *);
170 int (*ad_check_header)(struct adouble *, struct stat *);
171 int (*ad_header_read)(struct adouble *, struct stat *);
172 int (*ad_header_upgrade)(struct adouble *, char *);
177 u_int32_t ad_version;
178 char ad_filler[ 16 ];
179 struct ad_entry ad_eid[ ADEID_MAX ];
180 struct ad_fd ad_data_fork, ad_resource_fork, ad_metadata_fork;
181 struct ad_fd *ad_md; /* either ad_resource or ad_metadata */
182 int ad_flags; /* This really stores version info too (AD_VERSION*) */
183 int ad_adflags; /* ad_open flags adflags like ADFLAGS_DIR */
184 unsigned int ad_inited;
187 int ad_refcount; /* used in afpd/ofork.c */
188 off_t ad_rlen; /* ressource fork len with AFP 3.0
189 the header parameter size is too small. */
190 char *ad_m_name; /* mac name for open fork */
192 struct adouble_fops *ad_ops;
193 uint16_t ad_open_forks; /* open forks (by others) */
194 #ifdef USE_MMAPPED_HEADERS
197 char ad_data[AD_DATASZ_MAX];
201 #define ADFLAGS_DF (1<<0)
202 #define ADFLAGS_RF (1<<1)
203 #define ADFLAGS_HF (1<<2)
204 #define ADFLAGS_DIR (1<<3)
205 #define ADFLAGS_NOHF (1<<4) /* not an error if no ressource fork */
206 #define ADFLAGS_RDONLY (1<<5) /* don't try readwrite */
207 #define ADFLAGS_OPENFORKS (1<<6) /* check for open fork in ad_metadata function */
208 #define ADFLAGS_CREATE (1<<7)
210 #define ADVOL_NODEV (1 << 0)
211 #define ADVOL_CACHE (1 << 1)
212 #define ADVOL_UNIXPRIV (1 << 2) /* adouble unix priv */
213 #define ADVOL_INVDOTS (1 << 3) /* dot files (.DS_Store) are invisible) */
214 #define ADVOL_NOADOUBLE (1 << 4)
217 #define ADLOCK_CLR (0)
218 #define ADLOCK_RD (1<<0)
219 #define ADLOCK_WR (1<<1)
220 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
221 #define ADLOCK_UPGRADE (1<<2)
222 #define ADLOCK_FILELOCK (1<<3)
224 /* we use this so that we can use the same mechanism for both byte
225 * locks and file synchronization locks. i do this by co-opting either
226 * first bits on 32-bit machines or shifting above the last bit on
227 * 64-bit machines. this only matters for the data fork. */
228 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
229 /* synchronization locks */
230 #define AD_FILELOCK_BASE (0x80000000)
232 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
236 * AD_FILELOCK_BASE case
238 #if _FILE_OFFSET_BITS == 64
239 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
241 /* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
243 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
245 #define BYTELOCK_MAX (0x7FFFFFFFU)
249 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
250 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
251 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
252 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
253 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
255 /* time stuff. we overload the bits a little. */
256 #define AD_DATE_CREATE 0
257 #define AD_DATE_MODIFY 4
258 #define AD_DATE_BACKUP 8
259 #define AD_DATE_ACCESS 12
260 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
261 AD_DATE_BACKUP | AD_DATE_ACCESS)
262 #define AD_DATE_UNIX (1 << 10)
263 #define AD_DATE_START htonl(0x80000000)
264 #define AD_DATE_DELTA 946684800
265 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
266 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
268 /* various finder offset and info bits */
269 #define FINDERINFO_FRTYPEOFF 0
270 #define FINDERINFO_FRCREATOFF 4
271 #define FINDERINFO_FRFLAGOFF 8
273 /* FinderInfo Flags, char in `ad ls`, valid for files|dirs */
274 #define FINDERINFO_ISONDESK (1) /* "d", fd */
275 #define FINDERINFO_COLOR (0x0e)
276 #define FINDERINFO_HIDEEXT (1<<4) /* "e", fd */
277 #define FINDERINFO_ISHARED (1<<6) /* "m", f */
278 #define FINDERINFO_HASNOINITS (1<<7) /* "n", f */
279 #define FINDERINFO_HASBEENINITED (1<<8) /* "i", fd */
280 #define FINDERINFO_HASCUSTOMICON (1<<10) /* "c", fd */
281 #define FINDERINFO_ISSTATIONNERY (1<<11) /* "t", f */
282 #define FINDERINFO_NAMELOCKED (1<<12) /* "s", fd */
283 #define FINDERINFO_HASBUNDLE (1<<13) /* "b", fd */
284 #define FINDERINFO_INVISIBLE (1<<14) /* "v", fd */
285 #define FINDERINFO_ISALIAS (1<<15) /* "a", fd */
287 #define FINDERINFO_FRVIEWOFF 14
288 #define FINDERINFO_CUSTOMICON 0x4
289 #define FINDERINFO_CLOSEDVIEW 0x100
292 The "shared" and "invisible" attributes are opaque and stored and
293 retrieved from the FinderFlags. This fixes Bug #2802236:
294 <https://sourceforge.net/tracker/?func=detail&aid=2802236&group_id=8642&atid=108642>
297 /* AFP attributes, char in `ad ls`, valid for files|dirs */
298 #define ATTRBIT_INVISIBLE (1<<0) /* opaque from FinderInfo */
299 #define ATTRBIT_MULTIUSER (1<<1) /* file: opaque, dir: see below */
300 #define ATTRBIT_SYSTEM (1<<2) /* "y", fd */
301 #define ATTRBIT_DOPEN (1<<3) /* data fork already open. Not stored, computed on the fly */
302 #define ATTRBIT_ROPEN (1<<4) /* resource fork already open. Not stored, computed on the fly */
303 #define ATTRBIT_NOWRITE (1<<5) /* "w", f, write inhibit(v2)/read-only(v1) bit */
304 #define ATTRBIT_BACKUP (1<<6) /* "p", fd */
305 #define ATTRBIT_NORENAME (1<<7) /* "r", fd */
306 #define ATTRBIT_NODELETE (1<<8) /* "l", fd */
307 #define ATTRBIT_NOCOPY (1<<10) /* "o", f */
308 #define ATTRBIT_SETCLR (1<<15) /* set/clear bit (d) */
310 /* AFP attributes for dirs. These should probably be computed on the fly.
311 * We don't do that, nor does e.g. OS S X 10.5 Server */
312 #define ATTRBIT_EXPFLDR (1<<1) /* Folder is a sharepoint */
313 #define ATTRBIT_MOUNTED (1<<3) /* Directory is mounted by a user */
314 #define ATTRBIT_SHARED (1<<4) /* Shared area, called IsExpFolder in spec */
316 /* private AFPFileInfo bits */
317 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
318 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
319 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
321 #define ad_data_fileno(ad) ((ad)->ad_data_fork.adf_fd)
322 #define ad_reso_fileno(ad) ((ad)->ad_resource_fork.adf_fd)
323 #define ad_meta_fileno(ad) ((ad)->ad_md->adf_fd)
325 #define ad_getversion(ad) ((ad)->ad_version)
327 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
328 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
329 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
330 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + (ad)->ad_eid[(eid)].ade_off)
332 #define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
333 #define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
336 extern int ad_rebuild_adouble_header (struct adouble *);
337 extern int ad_rebuild_sfm_header (struct adouble *);
338 extern int ad_copy_header (struct adouble *, struct adouble *);
339 extern int ad_flush (struct adouble *);
340 extern int ad_close (struct adouble *, int);
343 extern int ad_fcntl_lock (struct adouble *, const u_int32_t /*eid*/,
344 const int /*type*/, const off_t /*offset*/,
345 const off_t /*len*/, const int /*user*/);
346 extern void ad_fcntl_unlock (struct adouble *, const int /*user*/);
347 extern int ad_fcntl_tmplock (struct adouble *, const u_int32_t /*eid*/,
348 const int /*type*/, const off_t /*offset*/,
349 const off_t /*len*/, const int /*user*/);
350 extern int ad_testlock (struct adouble * /*adp*/, int /*eid*/, off_t /*off*/);
352 extern u_int16_t ad_openforks (struct adouble * /*adp*/, u_int16_t);
353 extern int ad_excl_lock (struct adouble * /*adp*/, const u_int32_t /*eid*/);
355 #define ad_lock ad_fcntl_lock
356 #define ad_tmplock ad_fcntl_tmplock
357 #define ad_unlock ad_fcntl_unlock
360 extern int ad_setfuid (const uid_t );
361 extern uid_t ad_getfuid (void );
362 extern char *ad_dir (const char *);
363 extern char *ad_path (const char *, int);
364 extern char *ad_path_osx (const char *, int);
365 extern char *ad_path_ads (const char *, int);
366 extern char *ad_path_sfm (const char *, int);
367 extern int ad_mode (const char *, int);
368 extern int ad_mkdir (const char *, int);
369 extern void ad_init (struct adouble *, int, int );
370 extern int ad_open (const char *, int, int, int, struct adouble *);
371 extern int ad_openat (int dirfd, const char *, int, int, int, struct adouble *);
372 extern int ad_refresh (struct adouble *);
373 extern int ad_stat (const char *, struct stat *);
374 extern int ad_metadata (const char *, int, struct adouble *);
375 extern int ad_metadataat (int, const char *, int, struct adouble *);
377 #define ad_open_metadata(name, flags, mode, adp)\
378 ad_open(name, ADFLAGS_HF | (flags), O_RDWR |(mode), 0666, (adp))
380 #define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_HF)
382 /* build a resource fork mode from the data fork mode:
383 * remove X mode and extend header to RW if R or W (W if R for locking),
385 static inline mode_t ad_hf_mode (mode_t mode)
387 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
388 /* fnctl lock need write access */
389 if ((mode & S_IRUSR))
391 if ((mode & S_IRGRP))
393 if ((mode & S_IROTH))
396 /* if write mode set add read mode */
397 if ((mode & S_IWUSR))
399 if ((mode & S_IWGRP))
401 if ((mode & S_IWOTH))
407 /* ad_read.c/ad_write.c */
408 extern int sys_ftruncate(int fd, off_t length);
409 extern ssize_t ad_read(struct adouble *, uint32_t, off_t, char *, size_t);
410 extern ssize_t ad_pread(struct ad_fd *, void *, size_t, off_t);
411 extern ssize_t ad_write(struct adouble *, uint32_t, off_t, int, const char *, size_t);
412 extern ssize_t adf_pread(struct ad_fd *, void *, size_t, off_t);
413 extern ssize_t adf_pwrite(struct ad_fd *, const void *, size_t, off_t);
414 extern int ad_dtruncate(struct adouble *, off_t);
415 extern int ad_rtruncate(struct adouble *, off_t);
418 extern off_t ad_size (const struct adouble *, uint32_t );
421 extern void *ad_mmapread(struct adouble *, uint32_t, off_t, size_t);
422 extern void *ad_mmapwrite(struct adouble *, uint32_t, off_t, int, size_t);
423 #define ad_munmap(buf, len) (munmap((buf), (len)))
426 extern int ad_setdate(struct adouble *, unsigned int, uint32_t);
427 extern int ad_getdate(const struct adouble *, unsigned int, uint32_t *);
430 extern int ad_setattr(const struct adouble *, uint16_t);
431 extern int ad_getattr(const struct adouble *, uint16_t *);
432 extern int ad_setname(struct adouble *, const char *);
433 extern int ad_setid(struct adouble *, dev_t dev, ino_t ino, uint32_t, uint32_t, const void *);
434 extern u_int32_t ad_getid(struct adouble *, dev_t, ino_t, cnid_t, const void *);
435 extern u_int32_t ad_forcegetid(struct adouble *adp);
438 extern int ad_readfile_init(const struct adouble *ad, int eid, off_t *off, int end);
442 #ifdef HAVE_SENDFILE_WRITE
443 extern ssize_t ad_writefile(struct adouble *, int, int, off_t, int, size_t);
444 #endif /* HAVE_SENDFILE_WRITE */
447 #endif /* _ATALK_ADOUBLE_H */