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 /* Read an ._ file, only uses the resofork, finderinfo is taken from EA */
514 static int ad_header_read_osx(const char *path _U_, struct adouble *ad, const struct stat *hst)
517 struct adouble adosx;
518 char *buf = &adosx.ad_data[0];
524 memset(buf, 0, sizeof(adosx.ad_data));
526 /* read the header */
527 EC_NEG1( header_len = adf_pread(ad->ad_rfp, buf, AD_DATASZ_OSX, 0) );
529 if (header_len < AD_HEADER_LEN) {
534 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
535 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
536 adosx.ad_magic = ntohl(adosx.ad_magic);
537 adosx.ad_version = ntohl(adosx.ad_version);
539 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
540 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't parse AppleDouble header");
545 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
546 nentries = ntohs(nentries);
547 len = nentries * AD_ENTRY_LEN;
549 if (len + AD_HEADER_LEN > sizeof(adosx.ad_data))
550 len = sizeof(adosx.ad_data) - AD_HEADER_LEN;
552 buf += AD_HEADER_LEN;
553 if (len > header_len - AD_HEADER_LEN) {
554 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't read entry info.");
559 nentries = len / AD_ENTRY_LEN;
560 parse_entries(&adosx, buf, nentries);
562 if (ad_getentryoff(&adosx, ADEID_RFORK) == 0
563 || ad_getentryoff(&adosx, ADEID_RFORK) > sizeof(ad->ad_data)
564 || ad_getentryoff(&adosx, ADEID_RFORK) > header_len
566 LOG(log_error, logtype_afpd, "ad_header_read_osx: problem with rfork entry offset.");
573 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
576 ad_setentryoff(ad, ADEID_RFORK, ad_getentryoff(&adosx, ADEID_RFORK));
577 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
583 static int ad_header_read_ea(const char *path, struct adouble *ad, const struct stat *hst _U_)
588 char *buf = ad->ad_data;
590 if (ad_meta_fileno(ad) != -1)
591 header_len = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA);
593 header_len = sys_lgetxattr(path, AD_EA_META, ad->ad_data, AD_DATASZ_EA);
594 if (header_len < 1) {
595 LOG(log_debug, logtype_default, "ad_header_read_ea: %s", strerror(errno));
599 if (header_len < AD_HEADER_LEN) {
600 LOG(log_error, logtype_default, "ad_header_read_ea: bogus AppleDouble header.");
605 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
606 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
608 ad->ad_magic = ntohl( ad->ad_magic );
609 ad->ad_version = ntohl( ad->ad_version );
611 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
612 LOG(log_error, logtype_default, "ad_header_read_ea: wrong magic or version");
617 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
618 nentries = ntohs( nentries );
620 /* Protect against bogus nentries */
621 len = nentries * AD_ENTRY_LEN;
622 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
623 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
624 if (len > header_len - AD_HEADER_LEN) {
625 LOG(log_error, logtype_default, "ad_header_read_ea: can't read entry info.");
629 nentries = len / AD_ENTRY_LEN;
631 /* Now parse entries */
632 parse_entries(ad, buf + AD_HEADER_LEN, nentries);
638 * Takes a path to an AppleDouble file and creates the parrent .AppleDouble directory
641 * path: "/path/.AppleDouble/file"
642 * => mkdir("/path/.AppleDouble/") (in ad_mkdir())
644 static int ad_mkrf(const char *path)
648 * Probably .AppleDouble doesn't exist, try to mkdir it.
650 if (NULL == ( slash = strrchr( path, '/' )) ) {
655 if ( ad_mkdir( path, 0777 ) < 0 ) {
662 static int ad_mkrf_ea(const char *path _U_)
664 AFP_PANIC("ad_mkrf_ea: dont use");
668 static int ad_mkrf_osx(const char *path _U_)
674 if we are root change path user/ group
675 It can be a native function for BSD cf. FAQ.Q10
676 path: pathname to chown
677 stbuf: parent directory inode
679 use fstat and fchown or lchown with linux?
681 #define EMULATE_SUIDDIR
683 static int ad_chown(const char *path, struct stat *stbuf)
686 #ifdef EMULATE_SUIDDIR
689 if (default_uid != (uid_t)-1) {
690 /* we are root (admin) */
691 id = (default_uid)?default_uid:stbuf->st_uid;
692 ret = lchown( path, id, stbuf->st_gid );
698 #define DEFMASK 07700 /* be conservative */
701 return access right and inode of path parent directory
703 static int ad_mode_st(const char *path, mode_t *mode, struct stat *stbuf)
708 if (ad_stat(path, stbuf) != 0) {
712 *mode &= stbuf->st_mode;
716 /* --------------------------- */
717 static int ad_header_upgrade(struct adouble *ad _U_, const char *name _U_)
722 static int ad_header_upgrade_ea(struct adouble *ad _U_, const char *name _U_)
724 AFP_PANIC("ad_header_upgrade_ea: dont use");
729 * Error handling for adouble header(=metadata) file open error
731 * We're called because opening ADFLAGS_HF caused an error.
732 * 1. In case ad_open is called with ADFLAGS_NOHF the error is suppressed.
733 * 2. If ad_open was called with ADFLAGS_DF we may have opened the datafork and thus
734 * ought to close it before returning with an error condition.
736 static int ad_error(struct adouble *ad, int adflags)
739 if (adflags & ADFLAGS_NOHF) { /* 1 */
742 if (adflags & (ADFLAGS_DF | ADFLAGS_SETSHRMD | ADFLAGS_CHECK_OF)) { /* 2 */
743 ad_close( ad, ADFLAGS_DF );
750 * Map ADFLAGS to open() flags
752 * @param adfile (r) the file you really want to open: ADFLAGS_DF or ADFLAGS_HF
753 * @param adflags (r) flags from ad_open(..., adflags, ...)
754 * @returns mapped flags suitable for calling open()
756 static int ad2openflags(const struct adouble *ad, int adfile, int adflags)
760 if (adflags & ADFLAGS_RDWR)
762 if (adflags & ADFLAGS_RDONLY) {
763 if (((adfile == ADFLAGS_DF || adfile == ADFLAGS_RF) && (adflags & ADFLAGS_SETSHRMD))
764 /* need rw access for locks */
765 || ((adfile == ADFLAGS_HF) && (ad->ad_vers == AD_VERSION2)))
766 /* need rw access for adouble file for the case:
767 1) openfork(data+meta:O_RDONLY), 2) openfork(reso(=meta):O_RDWR) */
772 if (adflags & ADFLAGS_CREATE)
774 if (adflags & ADFLAGS_EXCL)
776 if (adflags & ADFLAGS_TRUNC)
782 static char emptyfilad[32] = {0,0,0,0,0,0,0,0,
787 static char emptydirad[32] = {0,0,0,0,0,0,0,0,
792 static int ad_conv_v22ea_hf(const char *path, const struct stat *sp, const struct vol *vol)
799 uint32_t ctime, mtime, afpinfo = 0;
802 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): BEGIN", fullpathname(path));
805 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
806 adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
808 /* Open and lock adouble:v2 file */
809 EC_ZERO( ad_open(&adv2, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR) );
810 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
811 EC_NEG1_LOG( adv2.ad_ops->ad_header_read(path, &adv2, sp) );
813 /* Check if it's a non-empty header */
814 if (S_ISREG(sp->st_mode))
815 emptyad = &emptyfilad[0];
817 emptyad = &emptydirad[0];
819 if (ad_getentrylen(&adv2, ADEID_COMMENT) != 0)
821 if (ad_getentryoff(&adv2, ADEID_FINDERI)
822 && (ad_getentrylen(&adv2, ADEID_FINDERI) == ADEDLEN_FINDERI)
823 && (memcmp(ad_entry(&adv2, ADEID_FINDERI), emptyad, ADEDLEN_FINDERI) != 0))
825 if (ad_getentryoff(&adv2, ADEID_FILEDATESI)) {
826 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_CREATE | AD_DATE_UNIX, &ctime) );
827 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_MODIFY | AD_DATE_UNIX, &mtime) );
828 if ((ctime != mtime) || (mtime != sp->st_mtime))
831 if (ad_getentryoff(&adv2, ADEID_AFPFILEI)) {
832 if (memcmp(ad_entry(&adv2, ADEID_AFPFILEI), &afpinfo, ADEDLEN_AFPFILEI) != 0)
836 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): default adouble", fullpathname(path), ret);
840 /* Create a adouble:ea meta EA */
841 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): copying adouble", fullpathname(path), ret);
842 EC_ZERO_LOG( ad_open(&adea, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR | ADFLAGS_CREATE) );
843 EC_ZERO_LOG( ad_copy_header(&adea, &adv2) );
847 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
848 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
849 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): END: %d", fullpathname(path), ret);
853 static int ad_conv_v22ea_rf(const char *path, const struct stat *sp, const struct vol *vol)
859 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): BEGIN", fullpathname(path));
861 if (S_ISDIR(sp->st_mode))
865 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
867 /* Open and lock adouble:v2 file */
868 EC_ZERO( ad_open(&adv2, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR) );
869 if (adv2.ad_rlen > 0) {
870 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
872 /* Create a adouble:ea resource fork */
873 EC_ZERO_LOG( ad_open(&adea, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR | ADFLAGS_CREATE, 0666) );
875 EC_ZERO_LOG( copy_fork(ADEID_RFORK, &adea, &adv2) );
876 adea.ad_rlen = adv2.ad_rlen;
881 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_RF) );
882 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_RF) );
883 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): END: %d", fullpathname(path), ret);
887 static int ad_open_df(const char *path, int adflags, mode_t mode, struct adouble *ad)
896 LOG(log_debug, logtype_default,
897 "ad_open_df(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
898 fullpathname(path), adflags2logstr(adflags),
899 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
900 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
901 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
903 if (ad_data_fileno(ad) != -1) {
904 /* the file is already open, but we want write access: */
905 if ((adflags & ADFLAGS_RDWR)
906 /* and it was denied the first time: */
907 && (ad->ad_data_fork.adf_flags & O_RDONLY)) {
911 /* it's not new anymore */
912 ad->ad_data_fork.adf_flags &= ~( O_TRUNC | O_CREAT );
913 ad->ad_data_fork.adf_refcount++;
917 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_DF, adflags);
920 if ((adflags & ADFLAGS_CREATE)) {
921 st_invalid = ad_mode_st(path, &admode, &st_dir);
922 if ((ad->ad_options & ADVOL_UNIXPRIV))
926 ad->ad_data_fork.adf_fd = open(path, oflags, admode);
928 if (ad->ad_data_fork.adf_fd == -1) {
933 if ((adflags & ADFLAGS_SETSHRMD) && (adflags & ADFLAGS_RDONLY)) {
936 EC_NEG1( ad->ad_data_fork.adf_fd = open(path, oflags, admode) );
940 case OPEN_NOFOLLOW_ERRNO:
941 ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
942 if ((lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN)) <= 0) {
943 free(ad->ad_data_fork.adf_syml);
946 ad->ad_data_fork.adf_syml[lsz] = 0;
947 ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
955 ad_chown(path, &st_dir); /* just created, set owner if admin (root) */
957 ad->ad_data_fork.adf_flags = oflags;
958 adf_lock_init(&ad->ad_data_fork);
959 ad->ad_data_fork.adf_refcount++;
962 LOG(log_debug, logtype_default,
963 "ad_open_df(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
964 fullpathname(path), adflags2logstr(adflags), ret,
965 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
966 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
967 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
971 static int ad_open_hf_v2(const char *path, int adflags, mode_t mode, struct adouble *ad)
976 struct stat *pst = NULL;
978 int oflags, nocreatflags, opened = 0;
982 LOG(log_debug, logtype_default,
983 "ad_open_hf_v2(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
984 fullpathname(path), adflags2logstr(adflags),
985 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
986 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
987 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
989 if (ad_meta_fileno(ad) != -1) {
990 /* the file is already open, but we want write access: */
991 if ((adflags & ADFLAGS_RDWR) &&
992 /* and it was already denied: */
993 (ad->ad_mdp->adf_flags & O_RDONLY)) {
997 ad_refresh(path, ad);
998 /* it's not new anymore */
999 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1000 ad->ad_mdp->adf_refcount++;
1004 ad_p = ad->ad_ops->ad_path(path, adflags);
1005 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_HF, adflags);
1006 LOG(log_debug, logtype_default,"ad_open_hf_v2(\"%s\"): open flags: %s",
1007 fullpathname(path), openflags2logstr(oflags));
1008 nocreatflags = oflags & ~(O_CREAT | O_EXCL);
1010 ad_meta_fileno(ad) = open(ad_p, nocreatflags);
1012 if (ad_meta_fileno(ad) != -1) {
1013 ad->ad_mdp->adf_flags = nocreatflags;
1019 if ((adflags & ADFLAGS_RDONLY) && (adflags & ADFLAGS_SETSHRMD)) {
1020 nocreatflags &= ~O_RDWR;
1021 nocreatflags |= O_RDONLY;
1022 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, nocreatflags) );
1023 ad->ad_mdp->adf_flags = nocreatflags;
1028 if (!(oflags & O_CREAT))
1031 * We're expecting to create a new adouble header file here
1033 LOG(log_debug, logtype_default, "ad_open(\"%s\"): creating adouble file",
1034 fullpathname(path));
1037 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1038 if ((ad->ad_options & ADVOL_UNIXPRIV))
1040 admode = ad_hf_mode(admode);
1041 if (errno == ENOENT) {
1042 EC_NEG1_LOG( ad->ad_ops->ad_mkrf(ad_p) );
1044 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1045 if ((ad->ad_options & ADVOL_UNIXPRIV))
1047 admode = ad_hf_mode(admode);
1050 /* retry with O_CREAT */
1051 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, oflags, admode) );
1052 ad->ad_mdp->adf_flags = oflags;
1053 /* just created, set owner if admin owner (root) */
1055 ad_chown(ad_p, &st_dir);
1062 /* Now we've got a new opened fd, we need to check that in the error case */
1065 if (!(ad->ad_mdp->adf_flags & O_CREAT)) {
1066 /* check for 0 length files, treat them as new. */
1067 if (fstat(ad->ad_mdp->adf_fd, &st_meta) == 0) {
1068 if (st_meta.st_size == 0)
1069 ad->ad_mdp->adf_flags |= O_TRUNC;
1071 /* we have valid data in st_meta stat structure, reused it in ad_header_read */
1076 adf_lock_init(ad->ad_mdp);
1077 ad->ad_mdp->adf_refcount = 1;
1079 if ((ad->ad_mdp->adf_flags & ( O_TRUNC | O_CREAT ))) {
1080 /* This is a new adouble header file, create it */
1081 EC_NEG1_LOG( new_ad_header(ad, path, pst, adflags) );
1084 /* Read the adouble header in and parse it.*/
1085 EC_NEG1_LOG( ad->ad_ops->ad_header_read(path, ad, pst) );
1089 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1090 close(ad_meta_fileno(ad));
1091 ad_meta_fileno(ad) = -1;
1092 ad->ad_mdp->adf_refcount = 0;
1094 LOG(log_debug, logtype_default,
1095 "ad_open_hf_v2(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1096 fullpathname(path), adflags2logstr(adflags), ret,
1097 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1098 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1099 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1103 static int ad_open_hf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1110 LOG(log_debug, logtype_default,
1111 "ad_open_hf_ea(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1112 fullpathname(path), adflags2logstr(adflags),
1113 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1114 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1115 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1117 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_DF, adflags) & ~(O_CREAT | O_TRUNC));
1119 if (ad_meta_fileno(ad) == -2)
1123 if (ad_meta_fileno(ad) != -1) {
1124 /* the file is already open, but we want write access: */
1125 if ((oflags & O_RDWR) &&
1126 /* and it was already denied: */
1127 (ad->ad_mdp->adf_flags & O_RDONLY)) {
1128 LOG(log_error, logtype_default, "ad_open_hf_ea(%s): rw request for ro file: %s",
1129 fullpathname(path), strerror(errno));
1133 /* it's not new anymore */
1134 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1136 if (oflags & O_RDWR) {
1137 /* Fo a RDONLY adouble we just use sys_lgetxattr instead if sys_fgetxattr */
1138 if (adflags & ADFLAGS_DIR)
1139 /* For directories we open the directory RDONYL so we can later fchdir() */
1140 oflags = (oflags & ~O_RDWR) | O_RDONLY;
1141 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): opening base file for meta adouble EA", path);
1142 EC_NEG1(ad_meta_fileno(ad) = open(path, oflags));
1144 ad->ad_mdp->adf_flags = oflags;
1148 /* Read the adouble header in and parse it.*/
1149 if (ad->ad_ops->ad_header_read(path, ad, NULL) != 0) {
1150 if (!(adflags & ADFLAGS_CREATE)) {
1151 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): can't read metadata EA", path);
1156 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): creating metadata EA", path);
1158 /* It doesnt exist, EPERM or another error */
1159 if (!(errno == ENOATTR || errno == ENOENT)) {
1160 LOG(log_error, logtype_default, "ad_open_hf_ea: unexpected: %s", strerror(errno));
1165 EC_NEG1_LOG(new_ad_header(ad, path, NULL, adflags));
1166 ad->ad_mdp->adf_flags |= O_CREAT; /* mark as just created */
1168 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): created metadata EA", path);
1171 ad->ad_mdp->adf_refcount++;
1172 (void)ad_reso_size(path, adflags, ad);
1175 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1176 close(ad_meta_fileno(ad));
1177 ad_meta_fileno(ad) = -1;
1178 ad->ad_mdp->adf_refcount = 0;
1180 LOG(log_debug, logtype_default,
1181 "ad_open_hf_ea(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1182 fullpathname(path), adflags2logstr(adflags), ret,
1183 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1184 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1185 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1190 static int ad_open_hf(const char *path, int adflags, int mode, struct adouble *ad)
1194 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
1197 switch (ad->ad_vers) {
1199 ret = ad_open_hf_v2(path, adflags, mode, ad);
1202 ret = ad_open_hf_ea(path, adflags, mode, ad);
1210 ret = ad_error(ad, adflags);
1216 * Get resofork length for adouble:ea
1218 static int ad_reso_size(const char *path, int adflags, struct adouble *ad)
1223 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\")", path);
1228 if (ad_reso_fileno(ad) != -1) {
1229 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
1230 ad->ad_rlen = st.st_size;
1231 } else if (ad_meta_fileno(ad) != -1) {
1232 EC_NEG1( easz = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_RESO, NULL, 0) );
1240 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags));
1241 EC_ZERO( lstat(rfpath, &st));
1242 if (st.st_size > ADEDOFF_RFORK_OSX)
1243 ad->ad_rlen = st.st_size - ADEDOFF_RFORK_OSX;
1248 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\"): size: %zd", path, ad->ad_rlen);
1256 static int ad_open_rf_v2(const char *path, int adflags, int mode, struct adouble *ad)
1259 * ad_open_hf_v2() does the work, but if it failed and adflags are ADFLAGS_NOHF | ADFLAGS_RF
1260 * ad_open_hf_v2() didn't give an error, but we're supposed to return a reso fork fd
1262 if (!AD_RSRC_OPEN(ad) && !(adflags & ADFLAGS_NORF))
1267 static int ad_open_rf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1272 int closeflags = adflags & (ADFLAGS_DF | ADFLAGS_HF);
1279 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): BEGIN", fullpathname(path));
1281 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_RF, adflags) & ~O_CREAT);
1283 if (ad_reso_fileno(ad) != -1) {
1284 /* the file is already open, but we want write access: */
1285 if ((oflags & O_RDWR)
1286 /* and it was already denied: */
1287 && (ad->ad_rfp->adf_flags & O_RDONLY)) {
1291 ad->ad_rfp->adf_flags &= ~( O_TRUNC | O_CREAT );
1292 ad->ad_rfp->adf_refcount++;
1293 EC_NEG1_LOG( ad_reso_size(path, adflags, ad));
1297 if (ad_meta_fileno(ad) == -1)
1299 if ((ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad), AD_EA_RESO, oflags)) == -1) {
1300 if (!(adflags & ADFLAGS_CREATE)) {
1305 EC_NEG1_LOG( ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad),
1306 AD_EA_RESO, oflags, 0666) );
1309 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags) );
1310 if ((ad_reso_fileno(ad) = open(rfpath, oflags)) == -1) {
1311 if (!(adflags & ADFLAGS_CREATE))
1314 EC_NEG1_LOG( ad_reso_fileno(ad) = open(rfpath, oflags, mode) );
1315 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork: \"%s\"",
1320 ad->ad_rfp->adf_refcount = 1;
1321 ad->ad_rfp->adf_flags = oflags;
1324 EC_ZERO_LOG( fstat(ad_reso_fileno(ad), &st) );
1325 if (ad->ad_rfp->adf_flags & O_CREAT) {
1326 /* This is a new adouble header file, create it */
1327 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, initializing: \"%s\"",
1329 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, flushing: \"%s\"",
1333 /* Read the adouble header */
1334 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): reading adouble rfork: \"%s\"",
1336 EC_NEG1_LOG( ad_header_read_osx(NULL, ad, &st) );
1340 (void)ad_reso_size(path, adflags, ad);
1344 if (opened && (ad_reso_fileno(ad) != -1)) {
1345 close(ad_reso_fileno(ad));
1346 ad_reso_fileno(ad) = -1;
1347 ad->ad_rfp->adf_refcount = 0;
1349 if (adflags & ADFLAGS_NORF) {
1353 (void)ad_close(ad, closeflags);
1359 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): END: %d", fullpathname(path), ret);
1365 * Open ressource fork
1367 static int ad_open_rf(const char *path, int adflags, int mode, struct adouble *ad)
1371 switch (ad->ad_vers) {
1373 ret = ad_open_rf_v2(path, adflags, mode, ad);
1376 ret = ad_open_rf_ea(path, adflags, mode, ad);
1386 /***********************************************************************************
1388 ********************************************************************************* */
1390 off_t ad_getentryoff(const struct adouble *ad, int eid)
1392 if (ad->ad_vers == AD_VERSION2)
1393 return ad->ad_eid[eid].ade_off;
1402 return ADEDOFF_RFORK_OSX;
1405 return ad->ad_eid[eid].ade_off;
1408 AFP_PANIC("What am I doing here?");
1411 const char *ad_path_ea( const char *path, int adflags _U_)
1416 const char *ad_path_osx(const char *path, int adflags _U_)
1418 static char pathbuf[ MAXPATHLEN + 1];
1419 char c, *slash, buf[MAXPATHLEN + 1];
1421 if (!strcmp(path,".")) {
1423 getcwd(buf, MAXPATHLEN);
1426 strlcpy(buf, path, MAXPATHLEN +1);
1428 if (NULL != ( slash = strrchr( buf, '/' )) ) {
1431 strlcpy( pathbuf, buf, MAXPATHLEN +1);
1434 pathbuf[ 0 ] = '\0';
1437 strlcat( pathbuf, "._", MAXPATHLEN +1);
1438 strlcat( pathbuf, slash, MAXPATHLEN +1);
1443 * Put the .AppleDouble where it needs to be:
1445 * / a/.AppleDouble/b
1447 * \ b/.AppleDouble/.Parent
1449 * FIXME: should do something for pathname > MAXPATHLEN
1451 const char *ad_path( const char *path, int adflags)
1453 static char pathbuf[ MAXPATHLEN + 1];
1457 if ( adflags & ADFLAGS_DIR ) {
1458 l = strlcpy( pathbuf, path, sizeof(pathbuf));
1460 if ( l && l < MAXPATHLEN) {
1463 strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
1465 if (NULL != ( slash = strrchr( path, '/' )) ) {
1468 /* XXX we must return NULL here and test in the caller */
1471 memcpy( pathbuf, path, l);
1476 l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
1477 strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
1483 /* -------------------------
1484 * Support inherited protection modes for AppleDouble files. The supplied
1485 * mode is ANDed with the parent directory's mask value in lieu of "umask",
1486 * and that value is returned.
1488 char *ad_dir(const char *path)
1490 static char modebuf[ MAXPATHLEN + 1];
1493 * For a path with directories in it, remove the final component
1494 * (path or subdirectory name) to get the name we want to stat.
1495 * For a path which is just a filename, use "." instead.
1497 slash = strrchr( path, '/' );
1502 if (len >= MAXPATHLEN) {
1503 errno = ENAMETOOLONG;
1504 return NULL; /* can't do it */
1506 memcpy( modebuf, path, len );
1507 modebuf[len] = '\0';
1508 /* is last char a '/' ? */
1509 if (slash[1] == 0) {
1510 slash = modebuf+ len;
1512 while (modebuf < slash && slash[-1] == '/') {
1515 if (modebuf == slash) {
1519 while (modebuf < slash && *slash != '/') {
1522 if (modebuf == slash) {
1525 *slash = '\0'; /* remove pathname component */
1530 modebuf[0] = '.'; /* use current directory */
1535 int ad_setfuid(const uid_t id)
1541 /* ---------------- */
1542 uid_t ad_getfuid(void)
1548 stat path parent directory
1550 int ad_stat(const char *path, struct stat *stbuf)
1557 return lstat( p, stbuf );
1561 return access right of path parent directory
1563 int ad_mode( const char *path, mode_t mode)
1566 ad_mode_st(path, &mode, &stbuf);
1571 * Use mkdir() with mode bits taken from ad_mode().
1573 int ad_mkdir( const char *path, mode_t mode)
1579 LOG(log_debug, logtype_default, "ad_mkdir(\"%s\", %04o) {cwd: \"%s\"}",
1580 path, mode, getcwdpath());
1582 st_invalid = ad_mode_st(path, &mode, &stbuf);
1583 ret = mkdir( path, mode );
1584 if (ret || st_invalid)
1586 ad_chown(path, &stbuf);
1591 static void ad_init_func(struct adouble *ad)
1593 switch (ad->ad_vers) {
1595 ad->ad_ops = &ad_adouble;
1596 ad->ad_rfp = &ad->ad_resource_fork;
1597 ad->ad_mdp = &ad->ad_resource_fork;
1600 ad->ad_ops = &ad_adouble_ea;
1601 ad->ad_rfp = &ad->ad_resource_fork;
1602 ad->ad_mdp = &ad->ad_data_fork;
1605 AFP_PANIC("ad_init: unknown AD version");
1609 ad_data_fileno(ad) = -1;
1610 ad_reso_fileno(ad) = -1;
1611 ad_meta_fileno(ad) = -1;
1612 ad->ad_refcount = 1;
1616 void ad_init_old(struct adouble *ad, int flags, int options)
1618 memset(ad, 0, sizeof(struct adouble));
1619 ad->ad_vers = flags;
1620 ad->ad_options = options;
1624 void ad_init(struct adouble *ad, const struct vol * restrict vol)
1626 memset(ad, 0, sizeof(struct adouble));
1627 ad->ad_vers = vol->v_adouble;
1628 ad->ad_options = vol->v_ad_options;
1633 * Open data-, metadata(header)- or ressource fork
1635 * ad_open(struct adouble *ad, const char *path, int adflags, int flags)
1636 * ad_open(struct adouble *ad, const char *path, int adflags, int flags, mode_t mode)
1638 * You must call ad_init() before ad_open, usually you'll just call it like this: \n
1641 * ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1644 * Open a files data fork, metadata fork or ressource fork.
1646 * @param ad (rw) pointer to struct adouble
1647 * @param path (r) Path to file or directory
1648 * @param adflags (r) Flags specifying which fork to open, can be or'd:
1649 * ADFLAGS_DF: open data fork
1650 * ADFLAGS_RF: open ressource fork
1651 * ADFLAGS_HF: open header (metadata) file
1652 * ADFLAGS_NOHF: it's not an error if header file couldn't be opened
1653 * ADFLAGS_NORF: it's not an error if reso fork couldn't be opened
1654 * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags
1656 * Access mode for the forks:
1657 * ADFLAGS_RDONLY: open read only
1658 * ADFLAGS_RDWR: open read write
1661 * ADFLAGS_CREATE: create if not existing
1662 * ADFLAGS_TRUNC: truncate
1665 * ADFLAGS_CHECK_OF: check for open forks from us and other afpd's
1666 * ADFLAGS_SETSHRMD: this adouble struct will be used to set sharemode locks.
1667 * This basically results in the files being opened RW instead of RDONLY.
1668 * @param mode (r) mode used with O_CREATE
1670 * The open mode flags (rw vs ro) have to take into account all the following requirements:
1671 * - we remember open fds for files because me must avoid a single close releasing fcntl locks for other
1672 * fds of the same file
1674 * @returns 0 on success, any other value indicates an error
1676 int ad_open(struct adouble *ad, const char *path, int adflags, ...)
1682 LOG(log_debug, logtype_default,
1683 "ad_open(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1684 fullpathname(path), adflags2logstr(adflags),
1685 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1686 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1687 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1689 if (adflags & ADFLAGS_CHECK_OF)
1690 /* Checking for open forks requires sharemode lock support (ie RDWR instead of RDONLY) */
1691 adflags |= ADFLAGS_SETSHRMD;
1693 if (adflags & ADFLAGS_SETSHRMD)
1694 /* sharemode locks are stored in the data fork */
1695 adflags |= ADFLAGS_DF;
1697 if (ad->ad_vers == AD_VERSION2) {
1698 if (adflags & ADFLAGS_RF)
1699 adflags |= ADFLAGS_HF;
1700 if (adflags & ADFLAGS_NORF)
1701 adflags |= ADFLAGS_NOHF;
1704 if (ad->ad_inited != AD_INITED) {
1705 ad->ad_adflags = adflags;
1706 ad->ad_inited = AD_INITED;
1708 ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
1709 if (ad->ad_resource_fork.adf_refcount > 0)
1710 ad->ad_open_forks |= ATTRBIT_ROPEN;
1713 va_start(args, adflags);
1714 if (adflags & ADFLAGS_CREATE)
1715 mode = va_arg(args, mode_t);
1718 if (adflags & ADFLAGS_DF) {
1719 EC_ZERO( ad_open_df(path, adflags, mode, ad) );
1722 if (adflags & ADFLAGS_HF) {
1723 EC_ZERO( ad_open_hf(path, adflags, mode, ad) );
1726 if (adflags & ADFLAGS_RF) {
1727 EC_ZERO( ad_open_rf(path, adflags, mode, ad) );
1730 if (adflags & ADFLAGS_CHECK_OF) {
1731 ad->ad_open_forks |= ad_openforks(ad, ad->ad_open_forks);
1735 LOG(log_debug, logtype_default,
1736 "ad_open(\"%s\"): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1737 fullpathname(path), ret,
1738 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1739 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1740 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1746 * @brief open metadata, possibly as root
1748 * Return only metadata but try very hard ie at first try as user, then try as root.
1750 * @param name name of file/dir
1751 * @param flags ADFLAGS_DIR: name is a directory \n
1752 * ADFLAGS_CHECK_OF: test if name is open by us or another afpd process
1754 * @param adp pointer to struct adouble
1756 int ad_metadata(const char *name, int flags, struct adouble *adp)
1759 int ret, err, oflags;
1761 /* Sanitize flags */
1762 oflags = (flags & (ADFLAGS_CHECK_OF | ADFLAGS_DIR)) | ADFLAGS_HF | ADFLAGS_RDONLY;
1764 if ((ret = ad_open(adp, name, oflags)) < 0 && errno == EACCES) {
1767 LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
1771 /* we are root open read only */
1772 ret = ad_open(adp, name, oflags);
1774 if ( seteuid(uid) < 0) {
1775 LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
1785 * @brief openat like wrapper for ad_metadata
1787 int ad_metadataat(int dirfd, const char *name, int flags, struct adouble *adp)
1793 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0)) {
1799 if (ad_metadata(name, flags, adp) < 0) {
1806 if (fchdir(cwdfd) != 0) {
1807 LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
1820 int ad_refresh(const char *path, struct adouble *ad)
1822 switch (ad->ad_vers) {
1824 if (ad_meta_fileno(ad) == -1)
1826 return ad->ad_ops->ad_header_read(NULL, ad, NULL);
1830 if (AD_META_OPEN(ad)) {
1831 if (ad_data_fileno(ad) == -1)
1833 // TODO: read meta EA
1836 if (AD_RSRC_OPEN(ad)) {
1837 if (ad_reso_fileno(ad) == -1)
1840 if (fstat(ad_reso_fileno(ad), &st) == -1)
1842 ad->ad_rlen = st.st_size;
1845 if (AD_META_OPEN(ad)) {
1846 if (ad_data_fileno(ad) == -1)
1848 // TODO: read meta EA
1850 if (AD_RSRC_OPEN(ad)) {
1851 if (ad_reso_fileno(ad) == -1)
1853 if (ad_header_read_osx(path, ad, NULL) < 0)
1857 return ad->ad_ops->ad_header_read(path, ad, NULL);
1866 int ad_openat(struct adouble *ad,
1867 int dirfd, /* dir fd openat like */
1877 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0))
1881 va_start(args, adflags);
1882 if (adflags & ADFLAGS_CREATE)
1883 mode = va_arg(args, mode_t);
1886 EC_NEG1( ad_open(ad, path, adflags, mode) );
1889 if (fchdir(cwdfd) != 0) {
1890 AFP_PANIC("ad_openat: cant chdir back");
1901 int ad_convert(const char *path, const struct stat *sp, const struct vol *vol)
1905 int adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
1907 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): BEGIN", fullpathname(path));
1909 if (!(vol->v_adouble == AD_VERSION_EA) || (vol->v_flags & AFPVOL_NOV2TOEACONV))
1912 EC_ZERO( ad_conv_v22ea_hf(path, sp, vol) );
1913 EC_ZERO( ad_conv_v22ea_rf(path, sp, vol) );
1915 EC_NULL( adpath = ad_path(path, adflags) );
1916 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): deleting adouble:v2 file: \"%s\"",
1917 path, fullpathname(adpath));
1920 EC_ZERO_LOG( unlink(adpath) );
1924 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): END: %d", fullpathname(path), ret);
1928 /* build a resource fork mode from the data fork mode:
1929 * remove X mode and extend header to RW if R or W (W if R for locking),
1931 mode_t ad_hf_mode(mode_t mode)
1933 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
1934 /* fnctl lock need write access */
1935 if ((mode & S_IRUSR))
1937 if ((mode & S_IRGRP))
1939 if ((mode & S_IROTH))
1942 /* if write mode set add read mode */
1943 if ((mode & S_IWUSR))
1945 if ((mode & S_IWGRP))
1947 if ((mode & S_IWOTH))