2 * Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
4 * Copyright (c) 2010 Frank Lahm
8 * Permission to use, copy, modify, and distribute this software and
9 * its documentation for any purpose and without fee is hereby granted,
10 * provided that the above copyright notice appears in all copies and
11 * that both that copyright notice and this permission notice appear
12 * in supporting documentation, and that the name of The University
13 * of Michigan not be used in advertising or publicity pertaining to
14 * distribution of the software without specific, written prior
15 * permission. This software is supplied as is without expressed or
16 * implied warranties of any kind.
18 * Research Systems Unix Group
19 * The University of Michigan
21 * 535 W. William Street
24 * netatalk@itd.umich.edu
30 * Part of Netatalk's AppleDouble implementatation
31 * @sa include/atalk/adouble.h
36 #endif /* HAVE_CONFIG_H */
39 #include <sys/param.h>
43 #include <arpa/inet.h>
45 #include <atalk/logger.h>
46 #include <atalk/adouble.h>
47 #include <atalk/util.h>
48 #include <atalk/unix.h>
50 #include <atalk/bstrlib.h>
51 #include <atalk/bstradd.h>
52 #include <atalk/compat.h>
53 #include <atalk/errchk.h>
54 #include <atalk/volume.h>
58 #define ADEDOFF_MAGIC (0)
59 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
60 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
61 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
63 /* initial lengths of some of the fields */
64 #define ADEDLEN_INIT 0
66 /* i stick things in a slightly different order than their eid order in
67 * case i ever want to separate RootInfo behaviour from the rest of the
71 #define ADEDOFF_NAME_V2 (AD_HEADER_LEN + ADEID_NUM_V2*AD_ENTRY_LEN)
72 #define ADEDOFF_COMMENT_V2 (ADEDOFF_NAME_V2 + ADEDLEN_NAME)
73 #define ADEDOFF_FILEDATESI (ADEDOFF_COMMENT_V2 + ADEDLEN_COMMENT)
74 #define ADEDOFF_FINDERI_V2 (ADEDOFF_FILEDATESI + ADEDLEN_FILEDATESI)
75 #define ADEDOFF_DID (ADEDOFF_FINDERI_V2 + ADEDLEN_FINDERI)
76 #define ADEDOFF_AFPFILEI (ADEDOFF_DID + ADEDLEN_DID)
77 #define ADEDOFF_SHORTNAME (ADEDOFF_AFPFILEI + ADEDLEN_AFPFILEI)
78 #define ADEDOFF_PRODOSFILEI (ADEDOFF_SHORTNAME + ADEDLEN_SHORTNAME)
79 #define ADEDOFF_PRIVDEV (ADEDOFF_PRODOSFILEI + ADEDLEN_PRODOSFILEI)
80 #define ADEDOFF_PRIVINO (ADEDOFF_PRIVDEV + ADEDLEN_PRIVDEV)
81 #define ADEDOFF_PRIVSYN (ADEDOFF_PRIVINO + ADEDLEN_PRIVINO)
82 #define ADEDOFF_PRIVID (ADEDOFF_PRIVSYN + ADEDLEN_PRIVSYN)
83 #define ADEDOFF_RFORK_V2 (ADEDOFF_PRIVID + ADEDLEN_PRIVID)
86 #define ADEDOFF_FINDERI_EA (AD_HEADER_LEN + ADEID_NUM_EA * AD_ENTRY_LEN)
87 #define ADEDOFF_COMMENT_EA (ADEDOFF_FINDERI_EA + ADEDLEN_FINDERI)
88 #define ADEDOFF_FILEDATESI_EA (ADEDOFF_COMMENT_EA + ADEDLEN_COMMENT)
89 #define ADEDOFF_AFPFILEI_EA (ADEDOFF_FILEDATESI_EA + ADEDLEN_FILEDATESI)
90 #define ADEDOFF_PRIVDEV_EA (ADEDOFF_AFPFILEI_EA + ADEDLEN_AFPFILEI)
91 #define ADEDOFF_PRIVINO_EA (ADEDOFF_PRIVDEV_EA + ADEDLEN_PRIVDEV)
92 #define ADEDOFF_PRIVSYN_EA (ADEDOFF_PRIVINO_EA + ADEDLEN_PRIVINO)
93 #define ADEDOFF_PRIVID_EA (ADEDOFF_PRIVSYN_EA + ADEDLEN_PRIVSYN)
95 /* this is to prevent changing timezones from causing problems with
96 localtime volumes. the screw-up is 30 years. we use a delta of 5 years */
97 #define TIMEWARP_DELTA 157680000
100 uint32_t id, offset, len;
103 /* --------------------------- */
104 static uid_t default_uid = -1;
106 /* Forward declarations */
107 static int ad_mkrf(const char *path);
108 static int ad_header_read(const char *path, struct adouble *ad, const struct stat *hst);
109 static int ad_header_upgrade(struct adouble *ad, const char *name);
111 static int ad_mkrf_ea(const char *path);
112 static int ad_header_read_ea(const char *path, struct adouble *ad, const struct stat *hst);
113 static int ad_header_upgrade_ea(struct adouble *ad, const char *name);
114 static int ad_reso_size(const char *path, int adflags, struct adouble *ad);
115 static int ad_mkrf_osx(const char *path);
118 static struct adouble_fops ad_adouble = {
121 &ad_rebuild_adouble_header,
126 static struct adouble_fops ad_adouble_ea = {
134 &ad_rebuild_adouble_header,
136 &ad_header_upgrade_ea,
139 static struct adouble_fops ad_osx = {
142 &ad_rebuild_adouble_header,
147 static const struct entry entry_order2[ADEID_NUM_V2 + 1] = {
148 {ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
149 {ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
150 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
151 {ADEID_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
152 {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
153 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
154 {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
155 {ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
156 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV, ADEDLEN_INIT},
157 {ADEID_PRIVINO, ADEDOFF_PRIVINO, ADEDLEN_INIT},
158 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN, ADEDLEN_INIT},
159 {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
160 {ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
164 /* Using Extended Attributes */
165 static const struct entry entry_order_ea[ADEID_NUM_EA + 1] = {
166 {ADEID_FINDERI, ADEDOFF_FINDERI_EA, ADEDLEN_FINDERI},
167 {ADEID_COMMENT, ADEDOFF_COMMENT_EA, ADEDLEN_INIT},
168 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_EA, ADEDLEN_FILEDATESI},
169 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_EA, ADEDLEN_AFPFILEI},
170 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV_EA, ADEDLEN_INIT},
171 {ADEID_PRIVINO, ADEDOFF_PRIVINO_EA, ADEDLEN_INIT},
172 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN_EA, ADEDLEN_INIT},
173 {ADEID_PRIVID, ADEDOFF_PRIVID_EA, ADEDLEN_INIT},
177 /* fallback for EAs */
178 static const struct entry entry_order_osx[ADEID_NUM_OSX +1] = {
179 {ADEID_FINDERI, ADEDOFF_FINDERI_OSX, ADEDLEN_FINDERI},
180 {ADEID_RFORK, ADEDOFF_RFORK_OSX, ADEDLEN_INIT},
184 #define ADFLAGS2LOGSTRBUFSIZ 128
185 const char *adflags2logstr(int adflags)
188 static char buf[ADFLAGS2LOGSTRBUFSIZ];
192 if (adflags & ADFLAGS_DF) {
193 strlcat(buf, "DF", ADFLAGS2LOGSTRBUFSIZ);
196 if (adflags & ADFLAGS_RF) {
198 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
199 strlcat(buf, "RF", ADFLAGS2LOGSTRBUFSIZ);
202 if (adflags & ADFLAGS_NORF) {
204 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
205 strlcat(buf, "NORF", ADFLAGS2LOGSTRBUFSIZ);
208 if (adflags & ADFLAGS_HF) {
210 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
211 strlcat(buf, "HF", ADFLAGS2LOGSTRBUFSIZ);
214 if (adflags & ADFLAGS_NOHF) {
216 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
217 strlcat(buf, "NOHF", ADFLAGS2LOGSTRBUFSIZ);
220 if (adflags & ADFLAGS_DIR) {
222 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
223 strlcat(buf, "DIR", ADFLAGS2LOGSTRBUFSIZ);
226 if (adflags & ADFLAGS_CHECK_OF) {
228 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
229 strlcat(buf, "OF", ADFLAGS2LOGSTRBUFSIZ);
232 if (adflags & ADFLAGS_SETSHRMD) {
234 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
235 strlcat(buf, "SHRMD", ADFLAGS2LOGSTRBUFSIZ);
238 if (adflags & ADFLAGS_RDWR) {
240 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
241 strlcat(buf, "O_RDWR", ADFLAGS2LOGSTRBUFSIZ);
244 if (adflags & ADFLAGS_RDONLY) {
246 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
247 strlcat(buf, "O_RDONLY", ADFLAGS2LOGSTRBUFSIZ);
250 if (adflags & ADFLAGS_CREATE) {
252 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
253 strlcat(buf, "O_CREAT", ADFLAGS2LOGSTRBUFSIZ);
256 if (adflags & ADFLAGS_EXCL) {
258 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
259 strlcat(buf, "O_EXCL", ADFLAGS2LOGSTRBUFSIZ);
262 if (adflags & ADFLAGS_TRUNC) {
264 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
265 strlcat(buf, "O_TRUNC", ADFLAGS2LOGSTRBUFSIZ);
272 #define OPENFLAGS2LOGSTRBUFSIZ 128
273 const char *openflags2logstr(int oflags)
276 static char buf[OPENFLAGS2LOGSTRBUFSIZ];
280 if ((oflags & O_RDONLY) || (oflags == O_RDONLY)) {
281 strlcat(buf, "O_RDONLY", OPENFLAGS2LOGSTRBUFSIZ);
284 if (oflags & O_RDWR) {
286 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
287 strlcat(buf, "O_RDWR", OPENFLAGS2LOGSTRBUFSIZ);
290 if (oflags & O_CREAT) {
292 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
293 strlcat(buf, "O_CREAT", OPENFLAGS2LOGSTRBUFSIZ);
296 if (oflags & O_TRUNC) {
298 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
299 strlcat(buf, "O_TRUNC", OPENFLAGS2LOGSTRBUFSIZ);
302 if (oflags & O_EXCL) {
304 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
305 strlcat(buf, "O_EXCL", OPENFLAGS2LOGSTRBUFSIZ);
311 static uint32_t get_eid(uint32_t eid)
316 return ADEID_PRIVDEV;
318 return ADEID_PRIVINO;
320 return ADEID_PRIVSYN;
327 /* ----------------------------------- */
328 static int new_ad_header(struct adouble *ad, const char *path, struct stat *stp, int adflags)
330 const struct entry *eid;
334 LOG(log_debug, logtype_default, "new_ad_header(\"%s\")", path);
338 if (lstat(path, &st) != 0)
342 ad->ad_magic = AD_MAGIC;
343 ad->ad_version = ad->ad_vers & 0x0f0000;
344 if (!ad->ad_version) {
345 ad->ad_version = AD_VERSION;
348 memset(ad->ad_data, 0, sizeof(ad->ad_data));
350 if (ad->ad_vers == AD_VERSION2)
352 else if (ad->ad_vers == AD_VERSION_EA)
353 eid = entry_order_ea;
354 else if (ad->ad_vers == AD_VERSION2_OSX)
355 eid = entry_order_osx;
361 ad->ad_eid[eid->id].ade_off = eid->offset;
362 ad->ad_eid[eid->id].ade_len = eid->len;
366 /* put something sane in the directory finderinfo */
367 if (ad->ad_vers != AD_VERSION2_OSX) {
368 if ((adflags & ADFLAGS_DIR)) {
369 /* set default view */
370 ashort = htons(FINDERINFO_CLOSEDVIEW);
371 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF, &ashort, sizeof(ashort));
373 /* set default creator/type fields */
374 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"\0\0\0\0", 4);
375 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"\0\0\0\0", 4);
378 /* make things invisible */
379 if ((ad->ad_options & ADVOL_INVDOTS)
381 && !((adflags & ADFLAGS_DIR) && (path[1] == 0))
383 ashort = htons(ATTRBIT_INVISIBLE);
384 ad_setattr(ad, ashort);
385 ashort = htons(FINDERINFO_INVISIBLE);
386 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
389 /* put something sane in the date fields */
390 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, stp->st_mtime);
391 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, stp->st_mtime);
392 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, stp->st_mtime);
393 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
398 /* -------------------------------------
401 static void parse_entries(struct adouble *ad, char *buf, uint16_t nentries)
403 uint32_t eid, len, off;
406 /* now, read in the entry bits */
407 for (; nentries > 0; nentries-- ) {
408 memcpy(&eid, buf, sizeof( eid ));
409 eid = get_eid(ntohl(eid));
410 buf += sizeof( eid );
411 memcpy(&off, buf, sizeof( off ));
413 buf += sizeof( off );
414 memcpy(&len, buf, sizeof( len ));
416 buf += sizeof( len );
420 && off < sizeof(ad->ad_data)
421 && (off + len <= sizeof(ad->ad_data) || eid == ADEID_RFORK)) {
422 ad->ad_eid[ eid ].ade_off = off;
423 ad->ad_eid[ eid ].ade_len = len;
424 } else if (!warning) {
426 LOG(log_warning, logtype_default, "parse_entries: bogus eid: %d", eid);
431 /* this reads enough of the header so that we can figure out all of
432 * the entry lengths and offsets. once that's done, we just read/mmap
433 * the rest of the header in.
435 * NOTE: we're assuming that the resource fork is kept at the end of
436 * the file. also, mmapping won't work for the hfs fs until it
437 * understands how to mmap header files. */
438 static int ad_header_read(const char *path _U_, struct adouble *ad, const struct stat *hst)
440 char *buf = ad->ad_data;
446 /* read the header */
447 if ((header_len = adf_pread( ad->ad_mdp, buf, AD_DATASZ2, 0)) < 0) {
450 if (header_len < AD_HEADER_LEN) {
455 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
456 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
457 ad->ad_magic = ntohl( ad->ad_magic );
458 ad->ad_version = ntohl( ad->ad_version );
460 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
461 LOG(log_error, logtype_default, "ad_open: can't parse AppleDouble header.");
466 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
467 nentries = ntohs( nentries );
469 /* read in all the entry headers. if we have more than the
470 * maximum, just hope that the rfork is specified early on. */
471 len = nentries*AD_ENTRY_LEN;
473 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
474 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
476 buf += AD_HEADER_LEN;
477 if (len > header_len - AD_HEADER_LEN) {
478 LOG(log_error, logtype_default, "ad_header_read: can't read entry info.");
483 /* figure out all of the entry offsets and lengths. if we aren't
484 * able to read a resource fork entry, bail. */
485 nentries = len / AD_ENTRY_LEN;
486 parse_entries(ad, buf, nentries);
487 if (!ad_getentryoff(ad, ADEID_RFORK)
488 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
490 LOG(log_error, logtype_default, "ad_header_read: problem with rfork entry offset.");
495 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
496 LOG(log_error, logtype_default, "ad_header_read: can't read in entries.");
503 if (fstat(ad->ad_mdp->adf_fd, &st) < 0) {
504 return 1; /* fail silently */
508 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
513 /* error here means it's not ad ._ adouble:osx file and thus we return 1 */
514 int ad_valid_header_osx(const char *path)
518 struct adouble adosx;
519 char *buf = &adosx.ad_data[0];
522 EC_NEG1( fd = open(path, O_RDONLY) );
524 /* read the header */
525 EC_NEG1( header_len = read(fd, buf, AD_DATASZ_OSX) );
527 if (header_len < AD_HEADER_LEN)
530 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
531 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
532 adosx.ad_magic = ntohl(adosx.ad_magic);
533 adosx.ad_version = ntohl(adosx.ad_version);
535 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
536 LOG(log_error, logtype_afpd, "ad_valid_header_osx: not an adouble:ox file");
546 /* Read an ._ file, only uses the resofork, finderinfo is taken from EA */
547 static int ad_header_read_osx(const char *path _U_, struct adouble *ad, const struct stat *hst)
550 struct adouble adosx;
551 char *buf = &adosx.ad_data[0];
557 memset(buf, 0, sizeof(adosx.ad_data));
559 /* read the header */
560 EC_NEG1( header_len = adf_pread(ad->ad_rfp, buf, AD_DATASZ_OSX, 0) );
562 if (header_len < AD_HEADER_LEN) {
567 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
568 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
569 adosx.ad_magic = ntohl(adosx.ad_magic);
570 adosx.ad_version = ntohl(adosx.ad_version);
572 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
573 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't parse AppleDouble header");
578 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
579 nentries = ntohs(nentries);
580 len = nentries * AD_ENTRY_LEN;
582 if (len + AD_HEADER_LEN > sizeof(adosx.ad_data))
583 len = sizeof(adosx.ad_data) - AD_HEADER_LEN;
585 buf += AD_HEADER_LEN;
586 if (len > header_len - AD_HEADER_LEN) {
587 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't read entry info.");
592 nentries = len / AD_ENTRY_LEN;
593 parse_entries(&adosx, buf, nentries);
595 if (ad_getentryoff(&adosx, ADEID_RFORK) == 0
596 || ad_getentryoff(&adosx, ADEID_RFORK) > sizeof(ad->ad_data)
597 || ad_getentryoff(&adosx, ADEID_RFORK) > header_len
599 LOG(log_error, logtype_afpd, "ad_header_read_osx: problem with rfork entry offset.");
606 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
609 ad_setentryoff(ad, ADEID_RFORK, ad_getentryoff(&adosx, ADEID_RFORK));
610 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
616 static int ad_header_read_ea(const char *path, struct adouble *ad, const struct stat *hst _U_)
621 char *buf = ad->ad_data;
623 if (ad_meta_fileno(ad) != -1)
624 header_len = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA);
626 header_len = sys_lgetxattr(path, AD_EA_META, ad->ad_data, AD_DATASZ_EA);
627 if (header_len < 1) {
628 LOG(log_debug, logtype_default, "ad_header_read_ea: %s", strerror(errno));
632 if (header_len < AD_HEADER_LEN) {
633 LOG(log_error, logtype_default, "ad_header_read_ea: bogus AppleDouble header.");
638 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
639 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
641 ad->ad_magic = ntohl( ad->ad_magic );
642 ad->ad_version = ntohl( ad->ad_version );
644 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
645 LOG(log_error, logtype_default, "ad_header_read_ea: wrong magic or version");
650 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
651 nentries = ntohs( nentries );
653 /* Protect against bogus nentries */
654 len = nentries * AD_ENTRY_LEN;
655 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
656 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
657 if (len > header_len - AD_HEADER_LEN) {
658 LOG(log_error, logtype_default, "ad_header_read_ea: can't read entry info.");
662 nentries = len / AD_ENTRY_LEN;
664 /* Now parse entries */
665 parse_entries(ad, buf + AD_HEADER_LEN, nentries);
671 * Takes a path to an AppleDouble file and creates the parrent .AppleDouble directory
674 * path: "/path/.AppleDouble/file"
675 * => mkdir("/path/.AppleDouble/") (in ad_mkdir())
677 static int ad_mkrf(const char *path)
681 * Probably .AppleDouble doesn't exist, try to mkdir it.
683 if (NULL == ( slash = strrchr( path, '/' )) ) {
688 if ( ad_mkdir( path, 0777 ) < 0 ) {
695 static int ad_mkrf_ea(const char *path _U_)
697 AFP_PANIC("ad_mkrf_ea: dont use");
701 static int ad_mkrf_osx(const char *path _U_)
707 if we are root change path user/ group
708 It can be a native function for BSD cf. FAQ.Q10
709 path: pathname to chown
710 stbuf: parent directory inode
712 use fstat and fchown or lchown with linux?
714 #define EMULATE_SUIDDIR
716 static int ad_chown(const char *path, struct stat *stbuf)
719 #ifdef EMULATE_SUIDDIR
722 if (default_uid != (uid_t)-1) {
723 /* we are root (admin) */
724 id = (default_uid)?default_uid:stbuf->st_uid;
725 ret = lchown( path, id, stbuf->st_gid );
731 #define DEFMASK 07700 /* be conservative */
734 return access right and inode of path parent directory
736 static int ad_mode_st(const char *path, mode_t *mode, struct stat *stbuf)
741 if (ad_stat(path, stbuf) != 0) {
745 *mode &= stbuf->st_mode;
749 /* --------------------------- */
750 static int ad_header_upgrade(struct adouble *ad _U_, const char *name _U_)
755 static int ad_header_upgrade_ea(struct adouble *ad _U_, const char *name _U_)
757 AFP_PANIC("ad_header_upgrade_ea: dont use");
762 * Error handling for adouble header(=metadata) file open error
764 * We're called because opening ADFLAGS_HF caused an error.
765 * 1. In case ad_open is called with ADFLAGS_NOHF the error is suppressed.
766 * 2. If ad_open was called with ADFLAGS_DF we may have opened the datafork and thus
767 * ought to close it before returning with an error condition.
769 static int ad_error(struct adouble *ad, int adflags)
772 if (adflags & ADFLAGS_NOHF) { /* 1 */
775 if (adflags & (ADFLAGS_DF | ADFLAGS_SETSHRMD | ADFLAGS_CHECK_OF)) { /* 2 */
776 ad_close( ad, ADFLAGS_DF );
783 * Map ADFLAGS to open() flags
785 * @param adfile (r) the file you really want to open: ADFLAGS_DF or ADFLAGS_HF
786 * @param adflags (r) flags from ad_open(..., adflags, ...)
787 * @returns mapped flags suitable for calling open()
789 static int ad2openflags(const struct adouble *ad, int adfile, int adflags)
793 if (adflags & ADFLAGS_RDWR)
795 if (adflags & ADFLAGS_RDONLY) {
796 if (((adfile == ADFLAGS_DF || adfile == ADFLAGS_RF) && (adflags & ADFLAGS_SETSHRMD))
797 /* need rw access for locks */
798 || ((adfile == ADFLAGS_HF) && (ad->ad_vers == AD_VERSION2)))
799 /* need rw access for adouble file for the case:
800 1) openfork(data+meta:O_RDONLY), 2) openfork(reso(=meta):O_RDWR) */
805 if (adflags & ADFLAGS_CREATE)
807 if (adflags & ADFLAGS_EXCL)
809 if (adflags & ADFLAGS_TRUNC)
815 static char emptyfilad[32] = {0,0,0,0,0,0,0,0,
820 static char emptydirad[32] = {0,0,0,0,0,0,0,0,
825 static int ad_conv_v22ea_hf(const char *path, const struct stat *sp, const struct vol *vol)
832 uint32_t ctime, mtime, afpinfo = 0;
835 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): BEGIN", fullpathname(path));
838 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
839 adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
841 /* Open and lock adouble:v2 file */
842 EC_ZERO( ad_open(&adv2, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR) );
843 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
844 EC_NEG1_LOG( adv2.ad_ops->ad_header_read(path, &adv2, sp) );
846 /* Check if it's a non-empty header */
847 if (S_ISREG(sp->st_mode))
848 emptyad = &emptyfilad[0];
850 emptyad = &emptydirad[0];
852 if (ad_getentrylen(&adv2, ADEID_COMMENT) != 0)
854 if (ad_getentryoff(&adv2, ADEID_FINDERI)
855 && (ad_getentrylen(&adv2, ADEID_FINDERI) == ADEDLEN_FINDERI)
856 && (memcmp(ad_entry(&adv2, ADEID_FINDERI), emptyad, ADEDLEN_FINDERI) != 0))
858 if (ad_getentryoff(&adv2, ADEID_FILEDATESI)) {
859 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_CREATE | AD_DATE_UNIX, &ctime) );
860 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_MODIFY | AD_DATE_UNIX, &mtime) );
861 if ((ctime != mtime) || (mtime != sp->st_mtime))
864 if (ad_getentryoff(&adv2, ADEID_AFPFILEI)) {
865 if (memcmp(ad_entry(&adv2, ADEID_AFPFILEI), &afpinfo, ADEDLEN_AFPFILEI) != 0)
869 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): default adouble", fullpathname(path), ret);
873 /* Create a adouble:ea meta EA */
874 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): copying adouble", fullpathname(path), ret);
875 EC_ZERO_LOG( ad_open(&adea, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR | ADFLAGS_CREATE) );
876 EC_ZERO_LOG( ad_copy_header(&adea, &adv2) );
880 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
881 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
882 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): END: %d", fullpathname(path), ret);
886 static int ad_conv_v22ea_rf(const char *path, const struct stat *sp, const struct vol *vol)
892 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): BEGIN", fullpathname(path));
894 if (S_ISDIR(sp->st_mode))
898 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
900 /* Open and lock adouble:v2 file */
901 EC_ZERO( ad_open(&adv2, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR) );
902 if (adv2.ad_rlen > 0) {
903 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
905 /* Create a adouble:ea resource fork */
906 EC_ZERO_LOG( ad_open(&adea, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR | ADFLAGS_CREATE, 0666) );
908 EC_ZERO_LOG( copy_fork(ADEID_RFORK, &adea, &adv2) );
909 adea.ad_rlen = adv2.ad_rlen;
914 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_RF) );
915 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_RF) );
916 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): END: %d", fullpathname(path), ret);
920 static int ad_open_df(const char *path, int adflags, mode_t mode, struct adouble *ad)
929 LOG(log_debug, logtype_default,
930 "ad_open_df(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
931 fullpathname(path), adflags2logstr(adflags),
932 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
933 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
934 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
936 if (ad_data_fileno(ad) != -1) {
937 /* the file is already open, but we want write access: */
938 if ((adflags & ADFLAGS_RDWR)
939 /* and it was denied the first time: */
940 && (ad->ad_data_fork.adf_flags & O_RDONLY)) {
944 /* it's not new anymore */
945 ad->ad_data_fork.adf_flags &= ~( O_TRUNC | O_CREAT );
946 ad->ad_data_fork.adf_refcount++;
950 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_DF, adflags);
953 if ((adflags & ADFLAGS_CREATE)) {
954 st_invalid = ad_mode_st(path, &admode, &st_dir);
955 if ((ad->ad_options & ADVOL_UNIXPRIV))
959 ad->ad_data_fork.adf_fd = open(path, oflags, admode);
961 if (ad->ad_data_fork.adf_fd == -1) {
966 if ((adflags & ADFLAGS_SETSHRMD) && (adflags & ADFLAGS_RDONLY)) {
969 EC_NEG1( ad->ad_data_fork.adf_fd = open(path, oflags, admode) );
973 case OPEN_NOFOLLOW_ERRNO:
974 ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
975 if ((lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN)) <= 0) {
976 free(ad->ad_data_fork.adf_syml);
979 ad->ad_data_fork.adf_syml[lsz] = 0;
980 ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
988 ad_chown(path, &st_dir); /* just created, set owner if admin (root) */
990 ad->ad_data_fork.adf_flags = oflags;
991 adf_lock_init(&ad->ad_data_fork);
992 ad->ad_data_fork.adf_refcount++;
995 LOG(log_debug, logtype_default,
996 "ad_open_df(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
997 fullpathname(path), adflags2logstr(adflags), ret,
998 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
999 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1000 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1004 static int ad_open_hf_v2(const char *path, int adflags, mode_t mode, struct adouble *ad)
1008 struct stat st_meta;
1009 struct stat *pst = NULL;
1011 int oflags, nocreatflags, opened = 0;
1013 int st_invalid = -1;
1015 LOG(log_debug, logtype_default,
1016 "ad_open_hf_v2(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1017 fullpathname(path), adflags2logstr(adflags),
1018 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1019 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1020 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1022 if (ad_meta_fileno(ad) != -1) {
1023 /* the file is already open, but we want write access: */
1024 if ((adflags & ADFLAGS_RDWR) &&
1025 /* and it was already denied: */
1026 (ad->ad_mdp->adf_flags & O_RDONLY)) {
1030 ad_refresh(path, ad);
1031 /* it's not new anymore */
1032 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1033 ad->ad_mdp->adf_refcount++;
1037 ad_p = ad->ad_ops->ad_path(path, adflags);
1038 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_HF, adflags);
1039 LOG(log_debug, logtype_default,"ad_open_hf_v2(\"%s\"): open flags: %s",
1040 fullpathname(path), openflags2logstr(oflags));
1041 nocreatflags = oflags & ~(O_CREAT | O_EXCL);
1043 ad_meta_fileno(ad) = open(ad_p, nocreatflags);
1045 if (ad_meta_fileno(ad) != -1) {
1046 ad->ad_mdp->adf_flags = nocreatflags;
1052 if ((adflags & ADFLAGS_RDONLY) && (adflags & ADFLAGS_SETSHRMD)) {
1053 nocreatflags &= ~O_RDWR;
1054 nocreatflags |= O_RDONLY;
1055 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, nocreatflags) );
1056 ad->ad_mdp->adf_flags = nocreatflags;
1061 if (!(oflags & O_CREAT))
1064 * We're expecting to create a new adouble header file here
1066 LOG(log_debug, logtype_default, "ad_open(\"%s\"): creating adouble file",
1067 fullpathname(path));
1070 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1071 if ((ad->ad_options & ADVOL_UNIXPRIV))
1073 admode = ad_hf_mode(admode);
1074 if (errno == ENOENT) {
1075 EC_NEG1_LOG( ad->ad_ops->ad_mkrf(ad_p) );
1077 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1078 if ((ad->ad_options & ADVOL_UNIXPRIV))
1080 admode = ad_hf_mode(admode);
1083 /* retry with O_CREAT */
1084 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, oflags, admode) );
1085 ad->ad_mdp->adf_flags = oflags;
1086 /* just created, set owner if admin owner (root) */
1088 ad_chown(ad_p, &st_dir);
1095 /* Now we've got a new opened fd, we need to check that in the error case */
1098 if (!(ad->ad_mdp->adf_flags & O_CREAT)) {
1099 /* check for 0 length files, treat them as new. */
1100 if (fstat(ad->ad_mdp->adf_fd, &st_meta) == 0) {
1101 if (st_meta.st_size == 0)
1102 ad->ad_mdp->adf_flags |= O_TRUNC;
1104 /* we have valid data in st_meta stat structure, reused it in ad_header_read */
1109 adf_lock_init(ad->ad_mdp);
1110 ad->ad_mdp->adf_refcount = 1;
1112 if ((ad->ad_mdp->adf_flags & ( O_TRUNC | O_CREAT ))) {
1113 /* This is a new adouble header file, create it */
1114 EC_NEG1_LOG( new_ad_header(ad, path, pst, adflags) );
1117 /* Read the adouble header in and parse it.*/
1118 EC_NEG1_LOG( ad->ad_ops->ad_header_read(path, ad, pst) );
1122 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1123 close(ad_meta_fileno(ad));
1124 ad_meta_fileno(ad) = -1;
1125 ad->ad_mdp->adf_refcount = 0;
1127 LOG(log_debug, logtype_default,
1128 "ad_open_hf_v2(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1129 fullpathname(path), adflags2logstr(adflags), ret,
1130 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1131 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1132 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1136 static int ad_open_hf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1143 LOG(log_debug, logtype_default,
1144 "ad_open_hf_ea(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1145 fullpathname(path), adflags2logstr(adflags),
1146 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1147 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1148 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1150 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_DF, adflags) & ~(O_CREAT | O_TRUNC));
1152 if (ad_meta_fileno(ad) == -2)
1156 if (ad_meta_fileno(ad) != -1) {
1157 /* the file is already open, but we want write access: */
1158 if ((oflags & O_RDWR) &&
1159 /* and it was already denied: */
1160 (ad->ad_mdp->adf_flags & O_RDONLY)) {
1161 LOG(log_error, logtype_default, "ad_open_hf_ea(%s): rw request for ro file: %s",
1162 fullpathname(path), strerror(errno));
1166 /* it's not new anymore */
1167 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1169 if (oflags & O_RDWR) {
1170 /* Fo a RDONLY adouble we just use sys_lgetxattr instead if sys_fgetxattr */
1171 if (adflags & ADFLAGS_DIR)
1172 /* For directories we open the directory RDONYL so we can later fchdir() */
1173 oflags = (oflags & ~O_RDWR) | O_RDONLY;
1174 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): opening base file for meta adouble EA", path);
1175 EC_NEG1(ad_meta_fileno(ad) = open(path, oflags));
1177 ad->ad_mdp->adf_flags = oflags;
1181 /* Read the adouble header in and parse it.*/
1182 if (ad->ad_ops->ad_header_read(path, ad, NULL) != 0) {
1183 if (!(adflags & ADFLAGS_CREATE)) {
1184 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): can't read metadata EA", path);
1189 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): creating metadata EA", path);
1191 /* It doesnt exist, EPERM or another error */
1192 if (!(errno == ENOATTR || errno == ENOENT)) {
1193 LOG(log_error, logtype_default, "ad_open_hf_ea: unexpected: %s", strerror(errno));
1198 EC_NEG1_LOG(new_ad_header(ad, path, NULL, adflags));
1199 ad->ad_mdp->adf_flags |= O_CREAT; /* mark as just created */
1201 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): created metadata EA", path);
1204 ad->ad_mdp->adf_refcount++;
1205 (void)ad_reso_size(path, adflags, ad);
1208 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1209 close(ad_meta_fileno(ad));
1210 ad_meta_fileno(ad) = -1;
1211 ad->ad_mdp->adf_refcount = 0;
1213 LOG(log_debug, logtype_default,
1214 "ad_open_hf_ea(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1215 fullpathname(path), adflags2logstr(adflags), ret,
1216 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1217 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1218 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1223 static int ad_open_hf(const char *path, int adflags, int mode, struct adouble *ad)
1227 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
1230 switch (ad->ad_vers) {
1232 ret = ad_open_hf_v2(path, adflags, mode, ad);
1235 ret = ad_open_hf_ea(path, adflags, mode, ad);
1243 ret = ad_error(ad, adflags);
1249 * Get resofork length for adouble:ea
1251 static int ad_reso_size(const char *path, int adflags, struct adouble *ad)
1256 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\")", path);
1261 if (ad_reso_fileno(ad) != -1) {
1262 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
1263 ad->ad_rlen = st.st_size;
1264 } else if (ad_meta_fileno(ad) != -1) {
1265 EC_NEG1( easz = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_RESO, NULL, 0) );
1273 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags));
1274 EC_ZERO( lstat(rfpath, &st));
1275 if (st.st_size > ADEDOFF_RFORK_OSX)
1276 ad->ad_rlen = st.st_size - ADEDOFF_RFORK_OSX;
1281 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\"): size: %zd", path, ad->ad_rlen);
1289 static int ad_open_rf_v2(const char *path, int adflags, int mode, struct adouble *ad)
1292 * ad_open_hf_v2() does the work, but if it failed and adflags are ADFLAGS_NOHF | ADFLAGS_RF
1293 * ad_open_hf_v2() didn't give an error, but we're supposed to return a reso fork fd
1295 if (!AD_RSRC_OPEN(ad) && !(adflags & ADFLAGS_NORF))
1300 static int ad_open_rf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1305 int closeflags = adflags & (ADFLAGS_DF | ADFLAGS_HF);
1312 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): BEGIN", fullpathname(path));
1314 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_RF, adflags) & ~O_CREAT);
1316 if (ad_reso_fileno(ad) != -1) {
1317 /* the file is already open, but we want write access: */
1318 if ((oflags & O_RDWR)
1319 /* and it was already denied: */
1320 && (ad->ad_rfp->adf_flags & O_RDONLY)) {
1324 ad->ad_rfp->adf_flags &= ~( O_TRUNC | O_CREAT );
1325 ad->ad_rfp->adf_refcount++;
1326 EC_NEG1_LOG( ad_reso_size(path, adflags, ad));
1330 if (ad_meta_fileno(ad) == -1)
1332 if ((ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad), AD_EA_RESO, oflags)) == -1) {
1333 if (!(adflags & ADFLAGS_CREATE)) {
1338 EC_NEG1_LOG( ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad),
1339 AD_EA_RESO, oflags, 0666) );
1342 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags) );
1343 if ((ad_reso_fileno(ad) = open(rfpath, oflags)) == -1) {
1344 if (!(adflags & ADFLAGS_CREATE))
1347 EC_NEG1_LOG( ad_reso_fileno(ad) = open(rfpath, oflags, mode) );
1348 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork: \"%s\"",
1353 ad->ad_rfp->adf_refcount = 1;
1354 ad->ad_rfp->adf_flags = oflags;
1357 EC_ZERO_LOG( fstat(ad_reso_fileno(ad), &st) );
1358 if (ad->ad_rfp->adf_flags & O_CREAT) {
1359 /* This is a new adouble header file, create it */
1360 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, initializing: \"%s\"",
1362 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, flushing: \"%s\"",
1366 /* Read the adouble header */
1367 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): reading adouble rfork: \"%s\"",
1369 EC_NEG1_LOG( ad_header_read_osx(NULL, ad, &st) );
1373 (void)ad_reso_size(path, adflags, ad);
1377 if (opened && (ad_reso_fileno(ad) != -1)) {
1378 close(ad_reso_fileno(ad));
1379 ad_reso_fileno(ad) = -1;
1380 ad->ad_rfp->adf_refcount = 0;
1382 if (adflags & ADFLAGS_NORF) {
1386 (void)ad_close(ad, closeflags);
1392 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): END: %d", fullpathname(path), ret);
1398 * Open ressource fork
1400 static int ad_open_rf(const char *path, int adflags, int mode, struct adouble *ad)
1404 switch (ad->ad_vers) {
1406 ret = ad_open_rf_v2(path, adflags, mode, ad);
1409 ret = ad_open_rf_ea(path, adflags, mode, ad);
1419 /***********************************************************************************
1421 ********************************************************************************* */
1423 off_t ad_getentryoff(const struct adouble *ad, int eid)
1425 if (ad->ad_vers == AD_VERSION2)
1426 return ad->ad_eid[eid].ade_off;
1435 return ADEDOFF_RFORK_OSX;
1438 return ad->ad_eid[eid].ade_off;
1441 AFP_PANIC("What am I doing here?");
1444 const char *ad_path_ea( const char *path, int adflags _U_)
1449 const char *ad_path_osx(const char *path, int adflags _U_)
1451 static char pathbuf[ MAXPATHLEN + 1];
1452 char c, *slash, buf[MAXPATHLEN + 1];
1454 if (!strcmp(path,".")) {
1456 getcwd(buf, MAXPATHLEN);
1459 strlcpy(buf, path, MAXPATHLEN +1);
1461 if (NULL != ( slash = strrchr( buf, '/' )) ) {
1464 strlcpy( pathbuf, buf, MAXPATHLEN +1);
1467 pathbuf[ 0 ] = '\0';
1470 strlcat( pathbuf, "._", MAXPATHLEN +1);
1471 strlcat( pathbuf, slash, MAXPATHLEN +1);
1476 * Put the .AppleDouble where it needs to be:
1478 * / a/.AppleDouble/b
1480 * \ b/.AppleDouble/.Parent
1482 * FIXME: should do something for pathname > MAXPATHLEN
1484 const char *ad_path( const char *path, int adflags)
1486 static char pathbuf[ MAXPATHLEN + 1];
1490 if ( adflags & ADFLAGS_DIR ) {
1491 l = strlcpy( pathbuf, path, sizeof(pathbuf));
1493 if ( l && l < MAXPATHLEN) {
1496 strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
1498 if (NULL != ( slash = strrchr( path, '/' )) ) {
1501 /* XXX we must return NULL here and test in the caller */
1504 memcpy( pathbuf, path, l);
1509 l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
1510 strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
1516 /* -------------------------
1517 * Support inherited protection modes for AppleDouble files. The supplied
1518 * mode is ANDed with the parent directory's mask value in lieu of "umask",
1519 * and that value is returned.
1521 char *ad_dir(const char *path)
1523 static char modebuf[ MAXPATHLEN + 1];
1526 * For a path with directories in it, remove the final component
1527 * (path or subdirectory name) to get the name we want to stat.
1528 * For a path which is just a filename, use "." instead.
1530 slash = strrchr( path, '/' );
1535 if (len >= MAXPATHLEN) {
1536 errno = ENAMETOOLONG;
1537 return NULL; /* can't do it */
1539 memcpy( modebuf, path, len );
1540 modebuf[len] = '\0';
1541 /* is last char a '/' ? */
1542 if (slash[1] == 0) {
1543 slash = modebuf+ len;
1545 while (modebuf < slash && slash[-1] == '/') {
1548 if (modebuf == slash) {
1552 while (modebuf < slash && *slash != '/') {
1555 if (modebuf == slash) {
1558 *slash = '\0'; /* remove pathname component */
1563 modebuf[0] = '.'; /* use current directory */
1568 int ad_setfuid(const uid_t id)
1574 /* ---------------- */
1575 uid_t ad_getfuid(void)
1581 stat path parent directory
1583 int ad_stat(const char *path, struct stat *stbuf)
1590 return lstat( p, stbuf );
1594 return access right of path parent directory
1596 int ad_mode( const char *path, mode_t mode)
1599 ad_mode_st(path, &mode, &stbuf);
1604 * Use mkdir() with mode bits taken from ad_mode().
1606 int ad_mkdir( const char *path, mode_t mode)
1612 LOG(log_debug, logtype_default, "ad_mkdir(\"%s\", %04o) {cwd: \"%s\"}",
1613 path, mode, getcwdpath());
1615 st_invalid = ad_mode_st(path, &mode, &stbuf);
1616 ret = mkdir( path, mode );
1617 if (ret || st_invalid)
1619 ad_chown(path, &stbuf);
1624 static void ad_init_func(struct adouble *ad)
1626 switch (ad->ad_vers) {
1628 ad->ad_ops = &ad_adouble;
1629 ad->ad_rfp = &ad->ad_resource_fork;
1630 ad->ad_mdp = &ad->ad_resource_fork;
1633 ad->ad_ops = &ad_adouble_ea;
1634 ad->ad_rfp = &ad->ad_resource_fork;
1635 ad->ad_mdp = &ad->ad_data_fork;
1638 AFP_PANIC("ad_init: unknown AD version");
1642 ad_data_fileno(ad) = -1;
1643 ad_reso_fileno(ad) = -1;
1644 ad_meta_fileno(ad) = -1;
1645 ad->ad_refcount = 1;
1649 void ad_init_old(struct adouble *ad, int flags, int options)
1651 memset(ad, 0, sizeof(struct adouble));
1652 ad->ad_vers = flags;
1653 ad->ad_options = options;
1657 void ad_init(struct adouble *ad, const struct vol * restrict vol)
1659 memset(ad, 0, sizeof(struct adouble));
1660 ad->ad_vers = vol->v_adouble;
1661 ad->ad_options = vol->v_ad_options;
1666 * Open data-, metadata(header)- or ressource fork
1668 * ad_open(struct adouble *ad, const char *path, int adflags, int flags)
1669 * ad_open(struct adouble *ad, const char *path, int adflags, int flags, mode_t mode)
1671 * You must call ad_init() before ad_open, usually you'll just call it like this: \n
1674 * ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1677 * Open a files data fork, metadata fork or ressource fork.
1679 * @param ad (rw) pointer to struct adouble
1680 * @param path (r) Path to file or directory
1681 * @param adflags (r) Flags specifying which fork to open, can be or'd:
1682 * ADFLAGS_DF: open data fork
1683 * ADFLAGS_RF: open ressource fork
1684 * ADFLAGS_HF: open header (metadata) file
1685 * ADFLAGS_NOHF: it's not an error if header file couldn't be opened
1686 * ADFLAGS_NORF: it's not an error if reso fork couldn't be opened
1687 * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags
1689 * Access mode for the forks:
1690 * ADFLAGS_RDONLY: open read only
1691 * ADFLAGS_RDWR: open read write
1694 * ADFLAGS_CREATE: create if not existing
1695 * ADFLAGS_TRUNC: truncate
1698 * ADFLAGS_CHECK_OF: check for open forks from us and other afpd's
1699 * ADFLAGS_SETSHRMD: this adouble struct will be used to set sharemode locks.
1700 * This basically results in the files being opened RW instead of RDONLY.
1701 * @param mode (r) mode used with O_CREATE
1703 * The open mode flags (rw vs ro) have to take into account all the following requirements:
1704 * - we remember open fds for files because me must avoid a single close releasing fcntl locks for other
1705 * fds of the same file
1707 * @returns 0 on success, any other value indicates an error
1709 int ad_open(struct adouble *ad, const char *path, int adflags, ...)
1715 LOG(log_debug, logtype_default,
1716 "ad_open(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1717 fullpathname(path), adflags2logstr(adflags),
1718 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1719 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1720 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1722 if (adflags & ADFLAGS_CHECK_OF)
1723 /* Checking for open forks requires sharemode lock support (ie RDWR instead of RDONLY) */
1724 adflags |= ADFLAGS_SETSHRMD;
1726 if (adflags & ADFLAGS_SETSHRMD)
1727 /* sharemode locks are stored in the data fork */
1728 adflags |= ADFLAGS_DF;
1730 if (ad->ad_vers == AD_VERSION2) {
1731 if (adflags & ADFLAGS_RF)
1732 adflags |= ADFLAGS_HF;
1733 if (adflags & ADFLAGS_NORF)
1734 adflags |= ADFLAGS_NOHF;
1737 if (ad->ad_inited != AD_INITED) {
1738 ad->ad_adflags = adflags;
1739 ad->ad_inited = AD_INITED;
1741 ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
1742 if (ad->ad_resource_fork.adf_refcount > 0)
1743 ad->ad_open_forks |= ATTRBIT_ROPEN;
1746 va_start(args, adflags);
1747 if (adflags & ADFLAGS_CREATE)
1748 mode = va_arg(args, mode_t);
1751 if (adflags & ADFLAGS_DF) {
1752 EC_ZERO( ad_open_df(path, adflags, mode, ad) );
1755 if (adflags & ADFLAGS_HF) {
1756 EC_ZERO( ad_open_hf(path, adflags, mode, ad) );
1759 if (adflags & ADFLAGS_RF) {
1760 EC_ZERO( ad_open_rf(path, adflags, mode, ad) );
1763 if (adflags & ADFLAGS_CHECK_OF) {
1764 ad->ad_open_forks |= ad_openforks(ad, ad->ad_open_forks);
1768 LOG(log_debug, logtype_default,
1769 "ad_open(\"%s\"): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1770 fullpathname(path), ret,
1771 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1772 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1773 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1779 * @brief open metadata, possibly as root
1781 * Return only metadata but try very hard ie at first try as user, then try as root.
1783 * @param name name of file/dir
1784 * @param flags ADFLAGS_DIR: name is a directory \n
1785 * ADFLAGS_CHECK_OF: test if name is open by us or another afpd process
1787 * @param adp pointer to struct adouble
1789 int ad_metadata(const char *name, int flags, struct adouble *adp)
1792 int ret, err, oflags;
1794 /* Sanitize flags */
1795 oflags = (flags & (ADFLAGS_CHECK_OF | ADFLAGS_DIR)) | ADFLAGS_HF | ADFLAGS_RDONLY;
1797 if ((ret = ad_open(adp, name, oflags)) < 0 && errno == EACCES) {
1800 LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
1804 /* we are root open read only */
1805 ret = ad_open(adp, name, oflags);
1807 if ( seteuid(uid) < 0) {
1808 LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
1818 * @brief openat like wrapper for ad_metadata
1820 int ad_metadataat(int dirfd, const char *name, int flags, struct adouble *adp)
1826 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0)) {
1832 if (ad_metadata(name, flags, adp) < 0) {
1839 if (fchdir(cwdfd) != 0) {
1840 LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
1853 int ad_refresh(const char *path, struct adouble *ad)
1855 switch (ad->ad_vers) {
1857 if (ad_meta_fileno(ad) == -1)
1859 return ad->ad_ops->ad_header_read(NULL, ad, NULL);
1863 if (AD_META_OPEN(ad)) {
1864 if (ad_data_fileno(ad) == -1)
1866 // TODO: read meta EA
1869 if (AD_RSRC_OPEN(ad)) {
1870 if (ad_reso_fileno(ad) == -1)
1873 if (fstat(ad_reso_fileno(ad), &st) == -1)
1875 ad->ad_rlen = st.st_size;
1878 if (AD_META_OPEN(ad)) {
1879 if (ad_data_fileno(ad) == -1)
1881 // TODO: read meta EA
1883 if (AD_RSRC_OPEN(ad)) {
1884 if (ad_reso_fileno(ad) == -1)
1886 if (ad_header_read_osx(path, ad, NULL) < 0)
1890 return ad->ad_ops->ad_header_read(path, ad, NULL);
1899 int ad_openat(struct adouble *ad,
1900 int dirfd, /* dir fd openat like */
1910 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0))
1914 va_start(args, adflags);
1915 if (adflags & ADFLAGS_CREATE)
1916 mode = va_arg(args, mode_t);
1919 EC_NEG1( ad_open(ad, path, adflags, mode) );
1922 if (fchdir(cwdfd) != 0) {
1923 AFP_PANIC("ad_openat: cant chdir back");
1934 int ad_convert(const char *path, const struct stat *sp, const struct vol *vol)
1938 int adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
1940 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): BEGIN", fullpathname(path));
1942 if (!(vol->v_adouble == AD_VERSION_EA) || (vol->v_flags & AFPVOL_NOV2TOEACONV))
1945 EC_ZERO( ad_conv_v22ea_hf(path, sp, vol) );
1946 EC_ZERO( ad_conv_v22ea_rf(path, sp, vol) );
1948 EC_NULL( adpath = ad_path(path, adflags) );
1949 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): deleting adouble:v2 file: \"%s\"",
1950 path, fullpathname(adpath));
1953 EC_ZERO_LOG( unlink(adpath) );
1957 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): END: %d", fullpathname(path), ret);
1961 /* build a resource fork mode from the data fork mode:
1962 * remove X mode and extend header to RW if R or W (W if R for locking),
1964 mode_t ad_hf_mode(mode_t mode)
1966 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
1967 /* fnctl lock need write access */
1968 if ((mode & S_IRUSR))
1970 if ((mode & S_IRGRP))
1972 if ((mode & S_IROTH))
1975 /* if write mode set add read mode */
1976 if ((mode & S_IWUSR))
1978 if ((mode & S_IWGRP))
1980 if ((mode & S_IWOTH))