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_v2,
126 static struct adouble_fops ad_adouble_ea = {
134 &ad_rebuild_adouble_header_ea,
136 &ad_header_upgrade_ea,
139 static const struct entry entry_order2[ADEID_NUM_V2 + 1] = {
140 {ADEID_NAME, ADEDOFF_NAME_V2, ADEDLEN_INIT},
141 {ADEID_COMMENT, ADEDOFF_COMMENT_V2, ADEDLEN_INIT},
142 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI, ADEDLEN_FILEDATESI},
143 {ADEID_FINDERI, ADEDOFF_FINDERI_V2, ADEDLEN_FINDERI},
144 {ADEID_DID, ADEDOFF_DID, ADEDLEN_DID},
145 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI, ADEDLEN_AFPFILEI},
146 {ADEID_SHORTNAME, ADEDOFF_SHORTNAME, ADEDLEN_INIT},
147 {ADEID_PRODOSFILEI, ADEDOFF_PRODOSFILEI, ADEDLEN_PRODOSFILEI},
148 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV, ADEDLEN_INIT},
149 {ADEID_PRIVINO, ADEDOFF_PRIVINO, ADEDLEN_INIT},
150 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN, ADEDLEN_INIT},
151 {ADEID_PRIVID, ADEDOFF_PRIVID, ADEDLEN_INIT},
152 {ADEID_RFORK, ADEDOFF_RFORK_V2, ADEDLEN_INIT},
156 /* Using Extended Attributes */
157 static const struct entry entry_order_ea[ADEID_NUM_EA + 1] = {
158 {ADEID_FINDERI, ADEDOFF_FINDERI_EA, ADEDLEN_FINDERI},
159 {ADEID_COMMENT, ADEDOFF_COMMENT_EA, ADEDLEN_INIT},
160 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_EA, ADEDLEN_FILEDATESI},
161 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_EA, ADEDLEN_AFPFILEI},
162 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV_EA, ADEDLEN_INIT},
163 {ADEID_PRIVINO, ADEDOFF_PRIVINO_EA, ADEDLEN_INIT},
164 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN_EA, ADEDLEN_INIT},
165 {ADEID_PRIVID, ADEDOFF_PRIVID_EA, ADEDLEN_INIT},
169 /* fallback for EAs */
170 static const struct entry entry_order_osx[ADEID_NUM_OSX +1] = {
171 {ADEID_FINDERI, ADEDOFF_FINDERI_OSX, ADEDLEN_FINDERI},
172 {ADEID_RFORK, ADEDOFF_RFORK_OSX, ADEDLEN_INIT},
176 #define ADFLAGS2LOGSTRBUFSIZ 128
177 const char *adflags2logstr(int adflags)
180 static char buf[ADFLAGS2LOGSTRBUFSIZ];
184 if (adflags & ADFLAGS_DF) {
185 strlcat(buf, "DF", ADFLAGS2LOGSTRBUFSIZ);
188 if (adflags & ADFLAGS_RF) {
190 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
191 strlcat(buf, "RF", ADFLAGS2LOGSTRBUFSIZ);
194 if (adflags & ADFLAGS_NORF) {
196 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
197 strlcat(buf, "NORF", ADFLAGS2LOGSTRBUFSIZ);
200 if (adflags & ADFLAGS_HF) {
202 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
203 strlcat(buf, "HF", ADFLAGS2LOGSTRBUFSIZ);
206 if (adflags & ADFLAGS_NOHF) {
208 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
209 strlcat(buf, "NOHF", ADFLAGS2LOGSTRBUFSIZ);
212 if (adflags & ADFLAGS_DIR) {
214 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
215 strlcat(buf, "DIR", ADFLAGS2LOGSTRBUFSIZ);
218 if (adflags & ADFLAGS_CHECK_OF) {
220 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
221 strlcat(buf, "OF", ADFLAGS2LOGSTRBUFSIZ);
224 if (adflags & ADFLAGS_SETSHRMD) {
226 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
227 strlcat(buf, "SHRMD", ADFLAGS2LOGSTRBUFSIZ);
230 if (adflags & ADFLAGS_RDWR) {
232 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
233 strlcat(buf, "O_RDWR", ADFLAGS2LOGSTRBUFSIZ);
236 if (adflags & ADFLAGS_RDONLY) {
238 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
239 strlcat(buf, "O_RDONLY", ADFLAGS2LOGSTRBUFSIZ);
242 if (adflags & ADFLAGS_CREATE) {
244 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
245 strlcat(buf, "O_CREAT", ADFLAGS2LOGSTRBUFSIZ);
248 if (adflags & ADFLAGS_EXCL) {
250 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
251 strlcat(buf, "O_EXCL", ADFLAGS2LOGSTRBUFSIZ);
254 if (adflags & ADFLAGS_TRUNC) {
256 strlcat(buf, "|", ADFLAGS2LOGSTRBUFSIZ);
257 strlcat(buf, "O_TRUNC", ADFLAGS2LOGSTRBUFSIZ);
264 #define OPENFLAGS2LOGSTRBUFSIZ 128
265 const char *openflags2logstr(int oflags)
268 static char buf[OPENFLAGS2LOGSTRBUFSIZ];
272 if ((oflags & O_RDONLY) || (oflags == O_RDONLY)) {
273 strlcat(buf, "O_RDONLY", OPENFLAGS2LOGSTRBUFSIZ);
276 if (oflags & O_RDWR) {
278 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
279 strlcat(buf, "O_RDWR", OPENFLAGS2LOGSTRBUFSIZ);
282 if (oflags & O_CREAT) {
284 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
285 strlcat(buf, "O_CREAT", OPENFLAGS2LOGSTRBUFSIZ);
288 if (oflags & O_TRUNC) {
290 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
291 strlcat(buf, "O_TRUNC", OPENFLAGS2LOGSTRBUFSIZ);
294 if (oflags & O_EXCL) {
296 strlcat(buf, "|", OPENFLAGS2LOGSTRBUFSIZ);
297 strlcat(buf, "O_EXCL", OPENFLAGS2LOGSTRBUFSIZ);
303 static uint32_t get_eid(uint32_t eid)
308 return ADEID_PRIVDEV;
310 return ADEID_PRIVINO;
312 return ADEID_PRIVSYN;
319 /* ----------------------------------- */
320 static int new_ad_header(struct adouble *ad, const char *path, struct stat *stp, int adflags)
322 const struct entry *eid;
326 LOG(log_debug, logtype_default, "new_ad_header(\"%s\")", path);
330 if (lstat(path, &st) != 0)
334 ad->ad_magic = AD_MAGIC;
335 ad->ad_version = ad->ad_vers & 0x0f0000;
336 if (!ad->ad_version) {
337 ad->ad_version = AD_VERSION;
340 memset(ad->ad_data, 0, sizeof(ad->ad_data));
342 if (ad->ad_vers == AD_VERSION2)
344 else if (ad->ad_vers == AD_VERSION_EA)
345 eid = entry_order_ea;
346 else if (ad->ad_vers == AD_VERSION2_OSX)
347 eid = entry_order_osx;
353 ad->ad_eid[eid->id].ade_off = eid->offset;
354 ad->ad_eid[eid->id].ade_len = eid->len;
358 /* put something sane in the directory finderinfo */
359 if (ad->ad_vers != AD_VERSION2_OSX) {
360 if ((adflags & ADFLAGS_DIR)) {
361 /* set default view */
362 ashort = htons(FINDERINFO_CLOSEDVIEW);
363 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRVIEWOFF, &ashort, sizeof(ashort));
365 /* set default creator/type fields */
366 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRTYPEOFF,"\0\0\0\0", 4);
367 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRCREATOFF,"\0\0\0\0", 4);
370 /* make things invisible */
371 if ((ad->ad_options & ADVOL_INVDOTS)
373 && !((adflags & ADFLAGS_DIR) && (path[1] == 0))
375 ashort = htons(ATTRBIT_INVISIBLE);
376 ad_setattr(ad, ashort);
377 ashort = htons(FINDERINFO_INVISIBLE);
378 memcpy(ad_entry(ad, ADEID_FINDERI) + FINDERINFO_FRFLAGOFF, &ashort, sizeof(ashort));
381 /* put something sane in the date fields */
382 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, stp->st_mtime);
383 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, stp->st_mtime);
384 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, stp->st_mtime);
385 ad_setdate(ad, AD_DATE_BACKUP, AD_DATE_START);
390 /* -------------------------------------
393 static void parse_entries(struct adouble *ad, char *buf, uint16_t nentries)
395 uint32_t eid, len, off;
398 /* now, read in the entry bits */
399 for (; nentries > 0; nentries-- ) {
400 memcpy(&eid, buf, sizeof( eid ));
401 eid = get_eid(ntohl(eid));
402 buf += sizeof( eid );
403 memcpy(&off, buf, sizeof( off ));
405 buf += sizeof( off );
406 memcpy(&len, buf, sizeof( len ));
408 buf += sizeof( len );
412 && off < sizeof(ad->ad_data)
413 && (off + len <= sizeof(ad->ad_data) || eid == ADEID_RFORK)) {
414 ad->ad_eid[ eid ].ade_off = off;
415 ad->ad_eid[ eid ].ade_len = len;
416 } else if (!warning) {
418 LOG(log_warning, logtype_default, "parse_entries: bogus eid: %d", eid);
423 /* this reads enough of the header so that we can figure out all of
424 * the entry lengths and offsets. once that's done, we just read/mmap
425 * the rest of the header in.
427 * NOTE: we're assuming that the resource fork is kept at the end of
428 * the file. also, mmapping won't work for the hfs fs until it
429 * understands how to mmap header files. */
430 static int ad_header_read(const char *path _U_, struct adouble *ad, const struct stat *hst)
432 char *buf = ad->ad_data;
438 /* read the header */
439 if ((header_len = adf_pread( ad->ad_mdp, buf, AD_DATASZ2, 0)) < 0) {
442 if (header_len < AD_HEADER_LEN) {
447 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
448 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
449 ad->ad_magic = ntohl( ad->ad_magic );
450 ad->ad_version = ntohl( ad->ad_version );
452 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
453 LOG(log_error, logtype_default, "ad_open: can't parse AppleDouble header.");
458 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
459 nentries = ntohs( nentries );
461 /* read in all the entry headers. if we have more than the
462 * maximum, just hope that the rfork is specified early on. */
463 len = nentries*AD_ENTRY_LEN;
465 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
466 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
468 buf += AD_HEADER_LEN;
469 if (len > header_len - AD_HEADER_LEN) {
470 LOG(log_error, logtype_default, "ad_header_read: can't read entry info.");
475 /* figure out all of the entry offsets and lengths. if we aren't
476 * able to read a resource fork entry, bail. */
477 nentries = len / AD_ENTRY_LEN;
478 parse_entries(ad, buf, nentries);
479 if (!ad_getentryoff(ad, ADEID_RFORK)
480 || (ad_getentryoff(ad, ADEID_RFORK) > sizeof(ad->ad_data))
482 LOG(log_error, logtype_default, "ad_header_read: problem with rfork entry offset.");
487 if (ad_getentryoff(ad, ADEID_RFORK) > header_len) {
488 LOG(log_error, logtype_default, "ad_header_read: can't read in entries.");
495 if (fstat(ad->ad_mdp->adf_fd, &st) < 0) {
496 return 1; /* fail silently */
500 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
505 /* error here means it's not ad ._ adouble:osx file and thus we return 1 */
506 int ad_valid_header_osx(const char *path)
510 struct adouble adosx;
511 char *buf = &adosx.ad_data[0];
514 LOG(log_debug, logtype_afpd, "ad_valid_header_osx(\"%s\"): BEGIN", fullpathname(path));
516 EC_NEG1( fd = open(path, O_RDONLY) );
518 /* read the header */
519 EC_NEG1( header_len = read(fd, buf, AD_DATASZ_OSX) );
521 if (header_len < AD_HEADER_LEN)
524 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
525 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
526 adosx.ad_magic = ntohl(adosx.ad_magic);
527 adosx.ad_version = ntohl(adosx.ad_version);
529 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
530 LOG(log_error, logtype_afpd, "ad_valid_header_osx: not an adouble:ox file");
535 LOG(log_debug, logtype_afpd, "ad_valid_header_osx(\"%s\"): END: %d", fullpathname(path), ret);
543 /* Read an ._ file, only uses the resofork, finderinfo is taken from EA */
544 static int ad_header_read_osx(const char *path _U_, struct adouble *ad, const struct stat *hst)
547 struct adouble adosx;
548 char *buf = &adosx.ad_data[0];
554 memset(buf, 0, sizeof(adosx.ad_data));
556 /* read the header */
557 EC_NEG1( header_len = adf_pread(ad->ad_rfp, buf, AD_DATASZ_OSX, 0) );
559 if (header_len < AD_HEADER_LEN) {
564 memcpy(&adosx.ad_magic, buf, sizeof(adosx.ad_magic));
565 memcpy(&adosx.ad_version, buf + ADEDOFF_VERSION, sizeof(adosx.ad_version));
566 adosx.ad_magic = ntohl(adosx.ad_magic);
567 adosx.ad_version = ntohl(adosx.ad_version);
569 if ((adosx.ad_magic != AD_MAGIC) || (adosx.ad_version != AD_VERSION2)) {
570 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't parse AppleDouble header");
575 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
576 nentries = ntohs(nentries);
577 len = nentries * AD_ENTRY_LEN;
579 if (len + AD_HEADER_LEN > sizeof(adosx.ad_data))
580 len = sizeof(adosx.ad_data) - AD_HEADER_LEN;
582 buf += AD_HEADER_LEN;
583 if (len > header_len - AD_HEADER_LEN) {
584 LOG(log_error, logtype_afpd, "ad_header_read_osx: can't read entry info.");
589 nentries = len / AD_ENTRY_LEN;
590 parse_entries(&adosx, buf, nentries);
592 if (ad_getentryoff(&adosx, ADEID_RFORK) == 0
593 || ad_getentryoff(&adosx, ADEID_RFORK) > sizeof(ad->ad_data)
594 || ad_getentryoff(&adosx, ADEID_RFORK) > header_len
596 LOG(log_error, logtype_afpd, "ad_header_read_osx: problem with rfork entry offset.");
603 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
606 ad_setentryoff(ad, ADEID_RFORK, ad_getentryoff(&adosx, ADEID_RFORK));
607 ad->ad_rlen = hst->st_size - ad_getentryoff(ad, ADEID_RFORK);
613 static int ad_header_read_ea(const char *path, struct adouble *ad, const struct stat *hst _U_)
618 char *buf = ad->ad_data;
620 if (ad_meta_fileno(ad) != -1)
621 header_len = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA);
623 header_len = sys_lgetxattr(path, AD_EA_META, ad->ad_data, AD_DATASZ_EA);
624 if (header_len < 1) {
625 LOG(log_debug, logtype_default, "ad_header_read_ea: %s", strerror(errno));
629 if (header_len < AD_HEADER_LEN) {
630 LOG(log_error, logtype_default, "ad_header_read_ea: bogus AppleDouble header.");
635 memcpy(&ad->ad_magic, buf, sizeof( ad->ad_magic ));
636 memcpy(&ad->ad_version, buf + ADEDOFF_VERSION, sizeof( ad->ad_version ));
638 ad->ad_magic = ntohl( ad->ad_magic );
639 ad->ad_version = ntohl( ad->ad_version );
641 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION2)) {
642 LOG(log_error, logtype_default, "ad_header_read_ea: wrong magic or version");
647 memcpy(&nentries, buf + ADEDOFF_NENTRIES, sizeof( nentries ));
648 nentries = ntohs( nentries );
650 /* Protect against bogus nentries */
651 len = nentries * AD_ENTRY_LEN;
652 if (len + AD_HEADER_LEN > sizeof(ad->ad_data))
653 len = sizeof(ad->ad_data) - AD_HEADER_LEN;
654 if (len > header_len - AD_HEADER_LEN) {
655 LOG(log_error, logtype_default, "ad_header_read_ea: can't read entry info.");
659 nentries = len / AD_ENTRY_LEN;
661 /* Now parse entries */
662 parse_entries(ad, buf + AD_HEADER_LEN, nentries);
668 * Takes a path to an AppleDouble file and creates the parrent .AppleDouble directory
671 * path: "/path/.AppleDouble/file"
672 * => mkdir("/path/.AppleDouble/") (in ad_mkdir())
674 static int ad_mkrf(const char *path)
678 * Probably .AppleDouble doesn't exist, try to mkdir it.
680 if (NULL == ( slash = strrchr( path, '/' )) ) {
685 if ( ad_mkdir( path, 0777 ) < 0 ) {
692 static int ad_mkrf_ea(const char *path _U_)
694 AFP_PANIC("ad_mkrf_ea: dont use");
698 static int ad_mkrf_osx(const char *path _U_)
704 if we are root change path user/ group
705 It can be a native function for BSD cf. FAQ.Q10
706 path: pathname to chown
707 stbuf: parent directory inode
709 use fstat and fchown or lchown with linux?
711 #define EMULATE_SUIDDIR
713 static int ad_chown(const char *path, struct stat *stbuf)
716 #ifdef EMULATE_SUIDDIR
719 if (default_uid != (uid_t)-1) {
720 /* we are root (admin) */
721 id = (default_uid)?default_uid:stbuf->st_uid;
722 ret = lchown( path, id, stbuf->st_gid );
728 #define DEFMASK 07700 /* be conservative */
731 return access right and inode of path parent directory
733 static int ad_mode_st(const char *path, mode_t *mode, struct stat *stbuf)
738 if (ad_stat(path, stbuf) != 0) {
742 *mode &= stbuf->st_mode;
746 /* --------------------------- */
747 static int ad_header_upgrade(struct adouble *ad _U_, const char *name _U_)
752 static int ad_header_upgrade_ea(struct adouble *ad _U_, const char *name _U_)
754 AFP_PANIC("ad_header_upgrade_ea: dont use");
759 * Error handling for adouble header(=metadata) file open error
761 * We're called because opening ADFLAGS_HF caused an error.
762 * 1. In case ad_open is called with ADFLAGS_NOHF the error is suppressed.
763 * 2. If ad_open was called with ADFLAGS_DF we may have opened the datafork and thus
764 * ought to close it before returning with an error condition.
766 static int ad_error(struct adouble *ad, int adflags)
769 if (adflags & ADFLAGS_NOHF) { /* 1 */
772 if (adflags & (ADFLAGS_DF | ADFLAGS_SETSHRMD | ADFLAGS_CHECK_OF)) { /* 2 */
773 ad_close( ad, ADFLAGS_DF );
780 * Map ADFLAGS to open() flags
782 * @param adfile (r) the file you really want to open: ADFLAGS_DF or ADFLAGS_HF
783 * @param adflags (r) flags from ad_open(..., adflags, ...)
784 * @returns mapped flags suitable for calling open()
786 static int ad2openflags(const struct adouble *ad, int adfile, int adflags)
790 if (adflags & ADFLAGS_RDWR)
792 if (adflags & ADFLAGS_RDONLY) {
793 if (((adfile == ADFLAGS_DF || adfile == ADFLAGS_RF) && (adflags & ADFLAGS_SETSHRMD))
794 /* need rw access for locks */
795 || ((adfile == ADFLAGS_HF) && (ad->ad_vers == AD_VERSION2)))
796 /* need rw access for adouble file for the case:
797 1) openfork(data+meta:O_RDONLY), 2) openfork(reso(=meta):O_RDWR) */
802 if (adflags & ADFLAGS_CREATE)
804 if (adflags & ADFLAGS_EXCL)
806 if (adflags & ADFLAGS_TRUNC)
812 static char emptyfilad[32] = {0,0,0,0,0,0,0,0,
817 static char emptydirad[32] = {0,0,0,0,0,0,0,0,
822 static int ad_conv_v22ea_hf(const char *path, const struct stat *sp, const struct vol *vol)
829 uint32_t ctime, mtime, afpinfo = 0;
832 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): BEGIN", fullpathname(path));
835 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
836 adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
838 /* Open and lock adouble:v2 file */
839 EC_ZERO( ad_open(&adv2, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR) );
840 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
841 EC_NEG1_LOG( adv2.ad_ops->ad_header_read(path, &adv2, sp) );
843 /* Check if it's a non-empty header */
844 if (S_ISREG(sp->st_mode))
845 emptyad = &emptyfilad[0];
847 emptyad = &emptydirad[0];
849 if (ad_getentrylen(&adv2, ADEID_COMMENT) != 0)
851 if (ad_getentryoff(&adv2, ADEID_FINDERI)
852 && (ad_getentrylen(&adv2, ADEID_FINDERI) == ADEDLEN_FINDERI)
853 && (memcmp(ad_entry(&adv2, ADEID_FINDERI), emptyad, ADEDLEN_FINDERI) != 0))
855 if (ad_getentryoff(&adv2, ADEID_FILEDATESI)) {
856 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_CREATE | AD_DATE_UNIX, &ctime) );
857 EC_ZERO_LOG( ad_getdate(&adv2, AD_DATE_MODIFY | AD_DATE_UNIX, &mtime) );
858 if ((ctime != mtime) || (mtime != sp->st_mtime))
861 if (ad_getentryoff(&adv2, ADEID_AFPFILEI)) {
862 if (memcmp(ad_entry(&adv2, ADEID_AFPFILEI), &afpinfo, ADEDLEN_AFPFILEI) != 0)
866 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): default adouble", fullpathname(path), ret);
870 /* Create a adouble:ea meta EA */
871 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): copying adouble", fullpathname(path), ret);
872 EC_ZERO_LOG( ad_open(&adea, path, adflags | ADFLAGS_HF | ADFLAGS_RDWR | ADFLAGS_CREATE) );
873 EC_ZERO_LOG( ad_copy_header(&adea, &adv2) );
877 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
878 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_SETSHRMD) );
879 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): END: %d", fullpathname(path), ret);
883 static int ad_conv_v22ea_rf(const char *path, const struct stat *sp, const struct vol *vol)
889 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): BEGIN", fullpathname(path));
891 if (S_ISDIR(sp->st_mode))
895 ad_init_old(&adv2, AD_VERSION2, adea.ad_options);
897 /* Open and lock adouble:v2 file */
898 EC_ZERO( ad_open(&adv2, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR) );
899 if (adv2.ad_rlen > 0) {
900 EC_NEG1_LOG( ad_tmplock(&adv2, ADEID_RFORK, ADLOCK_WR | ADLOCK_FILELOCK, 0, 0, 0) );
902 /* Create a adouble:ea resource fork */
903 EC_ZERO_LOG( ad_open(&adea, path, ADFLAGS_HF | ADFLAGS_RF | ADFLAGS_RDWR | ADFLAGS_CREATE, 0666) );
905 EC_ZERO_LOG( copy_fork(ADEID_RFORK, &adea, &adv2) );
906 adea.ad_rlen = adv2.ad_rlen;
911 EC_ZERO_LOG( ad_close(&adv2, ADFLAGS_HF | ADFLAGS_RF) );
912 EC_ZERO_LOG( ad_close(&adea, ADFLAGS_HF | ADFLAGS_RF) );
913 LOG(log_debug, logtype_default,"ad_conv_v22ea_rf(\"%s\"): END: %d", fullpathname(path), ret);
917 static int ad_open_df(const char *path, int adflags, mode_t mode, struct adouble *ad)
926 LOG(log_debug, logtype_default,
927 "ad_open_df(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
928 fullpathname(path), adflags2logstr(adflags),
929 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
930 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
931 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
933 if (ad_data_fileno(ad) != -1) {
934 /* the file is already open, but we want write access: */
935 if ((adflags & ADFLAGS_RDWR)
936 /* and it was denied the first time: */
937 && (ad->ad_data_fork.adf_flags & O_RDONLY)) {
941 /* it's not new anymore */
942 ad->ad_data_fork.adf_flags &= ~( O_TRUNC | O_CREAT );
943 ad->ad_data_fork.adf_refcount++;
947 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_DF, adflags);
950 if ((adflags & ADFLAGS_CREATE)) {
951 st_invalid = ad_mode_st(path, &admode, &st_dir);
952 if ((ad->ad_options & ADVOL_UNIXPRIV))
956 ad->ad_data_fork.adf_fd = open(path, oflags, admode);
958 if (ad->ad_data_fork.adf_fd == -1) {
963 if ((adflags & ADFLAGS_SETSHRMD) && (adflags & ADFLAGS_RDONLY)) {
966 EC_NEG1( ad->ad_data_fork.adf_fd = open(path, oflags, admode) );
970 case OPEN_NOFOLLOW_ERRNO:
971 ad->ad_data_fork.adf_syml = malloc(MAXPATHLEN+1);
972 if ((lsz = readlink(path, ad->ad_data_fork.adf_syml, MAXPATHLEN)) <= 0) {
973 free(ad->ad_data_fork.adf_syml);
976 ad->ad_data_fork.adf_syml[lsz] = 0;
977 ad->ad_data_fork.adf_fd = -2; /* -2 means its a symlink */
985 ad_chown(path, &st_dir); /* just created, set owner if admin (root) */
987 ad->ad_data_fork.adf_flags = oflags;
988 adf_lock_init(&ad->ad_data_fork);
989 ad->ad_data_fork.adf_refcount++;
992 LOG(log_debug, logtype_default,
993 "ad_open_df(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
994 fullpathname(path), adflags2logstr(adflags), ret,
995 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
996 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
997 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1001 static int ad_open_hf_v2(const char *path, int adflags, mode_t mode, struct adouble *ad)
1005 struct stat st_meta;
1006 struct stat *pst = NULL;
1008 int oflags, nocreatflags, opened = 0;
1010 int st_invalid = -1;
1012 LOG(log_debug, logtype_default,
1013 "ad_open_hf_v2(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1014 fullpathname(path), adflags2logstr(adflags),
1015 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1016 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1017 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1019 if (ad_meta_fileno(ad) != -1) {
1020 /* the file is already open, but we want write access: */
1021 if ((adflags & ADFLAGS_RDWR) &&
1022 /* and it was already denied: */
1023 (ad->ad_mdp->adf_flags & O_RDONLY)) {
1027 ad_refresh(path, ad);
1028 /* it's not new anymore */
1029 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1030 ad->ad_mdp->adf_refcount++;
1034 ad_p = ad->ad_ops->ad_path(path, adflags);
1035 oflags = O_NOFOLLOW | ad2openflags(ad, ADFLAGS_HF, adflags);
1036 LOG(log_debug, logtype_default,"ad_open_hf_v2(\"%s\"): open flags: %s",
1037 fullpathname(path), openflags2logstr(oflags));
1038 nocreatflags = oflags & ~(O_CREAT | O_EXCL);
1040 ad_meta_fileno(ad) = open(ad_p, nocreatflags);
1042 if (ad_meta_fileno(ad) != -1) {
1043 ad->ad_mdp->adf_flags = nocreatflags;
1049 if ((adflags & ADFLAGS_RDONLY) && (adflags & ADFLAGS_SETSHRMD)) {
1050 nocreatflags &= ~O_RDWR;
1051 nocreatflags |= O_RDONLY;
1052 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, nocreatflags) );
1053 ad->ad_mdp->adf_flags = nocreatflags;
1058 if (!(oflags & O_CREAT))
1061 * We're expecting to create a new adouble header file here
1063 LOG(log_debug, logtype_default, "ad_open(\"%s\"): creating adouble file",
1064 fullpathname(path));
1067 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1068 if ((ad->ad_options & ADVOL_UNIXPRIV))
1070 admode = ad_hf_mode(admode);
1071 if (errno == ENOENT) {
1072 EC_NEG1_LOG( ad->ad_ops->ad_mkrf(ad_p) );
1074 st_invalid = ad_mode_st(ad_p, &admode, &st_dir);
1075 if ((ad->ad_options & ADVOL_UNIXPRIV))
1077 admode = ad_hf_mode(admode);
1080 /* retry with O_CREAT */
1081 EC_NEG1( ad_meta_fileno(ad) = open(ad_p, oflags, admode) );
1082 ad->ad_mdp->adf_flags = oflags;
1083 /* just created, set owner if admin owner (root) */
1085 ad_chown(ad_p, &st_dir);
1092 /* Now we've got a new opened fd, we need to check that in the error case */
1095 if (!(ad->ad_mdp->adf_flags & O_CREAT)) {
1096 /* check for 0 length files, treat them as new. */
1097 if (fstat(ad->ad_mdp->adf_fd, &st_meta) == 0) {
1098 if (st_meta.st_size == 0)
1099 ad->ad_mdp->adf_flags |= O_TRUNC;
1101 /* we have valid data in st_meta stat structure, reused it in ad_header_read */
1106 adf_lock_init(ad->ad_mdp);
1107 ad->ad_mdp->adf_refcount = 1;
1109 if ((ad->ad_mdp->adf_flags & ( O_TRUNC | O_CREAT ))) {
1110 /* This is a new adouble header file, create it */
1111 EC_NEG1_LOG( new_ad_header(ad, path, pst, adflags) );
1114 /* Read the adouble header in and parse it.*/
1115 EC_NEG1_LOG( ad->ad_ops->ad_header_read(path, ad, pst) );
1119 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1120 close(ad_meta_fileno(ad));
1121 ad_meta_fileno(ad) = -1;
1122 ad->ad_mdp->adf_refcount = 0;
1124 LOG(log_debug, logtype_default,
1125 "ad_open_hf_v2(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1126 fullpathname(path), adflags2logstr(adflags), ret,
1127 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1128 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1129 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1133 static int ad_open_hf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1140 LOG(log_debug, logtype_default,
1141 "ad_open_hf_ea(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1142 fullpathname(path), adflags2logstr(adflags),
1143 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1144 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1145 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1147 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_DF, adflags) & ~(O_CREAT | O_TRUNC));
1149 if (ad_meta_fileno(ad) == -2)
1153 if (ad_meta_fileno(ad) != -1) {
1154 /* the file is already open, but we want write access: */
1155 if ((oflags & O_RDWR) &&
1156 /* and it was already denied: */
1157 (ad->ad_mdp->adf_flags & O_RDONLY)) {
1158 LOG(log_error, logtype_default, "ad_open_hf_ea(%s): rw request for ro file: %s",
1159 fullpathname(path), strerror(errno));
1163 /* it's not new anymore */
1164 ad->ad_mdp->adf_flags &= ~( O_TRUNC | O_CREAT );
1166 if (oflags & O_RDWR) {
1167 /* Fo a RDONLY adouble we just use sys_lgetxattr instead if sys_fgetxattr */
1168 if (adflags & ADFLAGS_DIR)
1169 /* For directories we open the directory RDONYL so we can later fchdir() */
1170 oflags = (oflags & ~O_RDWR) | O_RDONLY;
1171 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): opening base file for meta adouble EA", path);
1172 EC_NEG1(ad_meta_fileno(ad) = open(path, oflags));
1174 ad->ad_mdp->adf_flags = oflags;
1178 /* Read the adouble header in and parse it.*/
1179 if (ad->ad_ops->ad_header_read(path, ad, NULL) != 0) {
1180 if (!(adflags & ADFLAGS_CREATE)) {
1181 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): can't read metadata EA", path);
1186 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): creating metadata EA", path);
1188 /* It doesnt exist, EPERM or another error */
1189 if (!(errno == ENOATTR || errno == ENOENT)) {
1190 LOG(log_error, logtype_default, "ad_open_hf_ea: unexpected: %s", strerror(errno));
1195 EC_NEG1_LOG(new_ad_header(ad, path, NULL, adflags));
1196 ad->ad_mdp->adf_flags |= O_CREAT; /* mark as just created */
1198 LOG(log_debug, logtype_default, "ad_open_hf_ea(\"%s\"): created metadata EA", path);
1201 if (ad_meta_fileno(ad) != -1)
1202 ad->ad_mdp->adf_refcount++;
1203 (void)ad_reso_size(path, adflags, ad);
1206 if (ret != 0 && opened && ad_meta_fileno(ad) != -1) {
1207 close(ad_meta_fileno(ad));
1208 ad_meta_fileno(ad) = -1;
1209 ad->ad_mdp->adf_refcount = 0;
1211 LOG(log_debug, logtype_default,
1212 "ad_open_hf_ea(\"%s\", %s): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1213 fullpathname(path), adflags2logstr(adflags), ret,
1214 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1215 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1216 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1221 static int ad_open_hf(const char *path, int adflags, int mode, struct adouble *ad)
1225 memset(ad->ad_eid, 0, sizeof( ad->ad_eid ));
1228 switch (ad->ad_vers) {
1230 ret = ad_open_hf_v2(path, adflags, mode, ad);
1233 ret = ad_open_hf_ea(path, adflags, mode, ad);
1241 ret = ad_error(ad, adflags);
1247 * Get resofork length for adouble:ea
1249 static int ad_reso_size(const char *path, int adflags, struct adouble *ad)
1254 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\")", path);
1259 if (ad_reso_fileno(ad) != -1) {
1260 EC_NEG1( fstat(ad_reso_fileno(ad), &st) );
1261 ad->ad_rlen = st.st_size;
1262 } else if (ad_meta_fileno(ad) != -1) {
1263 EC_NEG1( easz = sys_fgetxattr(ad_meta_fileno(ad), AD_EA_RESO, NULL, 0) );
1271 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags));
1272 EC_ZERO( lstat(rfpath, &st));
1273 if (st.st_size > ADEDOFF_RFORK_OSX)
1274 ad->ad_rlen = st.st_size - ADEDOFF_RFORK_OSX;
1279 LOG(log_debug, logtype_default, "ad_reso_size(\"%s\"): size: %zd", path, ad->ad_rlen);
1287 static int ad_open_rf_v2(const char *path, int adflags, int mode, struct adouble *ad)
1290 * ad_open_hf_v2() does the work, but if it failed and adflags are ADFLAGS_NOHF | ADFLAGS_RF
1291 * ad_open_hf_v2() didn't give an error, but we're supposed to return a reso fork fd
1293 if (!AD_RSRC_OPEN(ad) && !(adflags & ADFLAGS_NORF))
1298 static int ad_open_rf_ea(const char *path, int adflags, int mode, struct adouble *ad)
1303 int closeflags = adflags & (ADFLAGS_DF | ADFLAGS_HF);
1310 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): BEGIN", fullpathname(path));
1312 oflags = O_NOFOLLOW | (ad2openflags(ad, ADFLAGS_RF, adflags) & ~O_CREAT);
1314 if (ad_reso_fileno(ad) != -1) {
1315 /* the file is already open, but we want write access: */
1316 if ((oflags & O_RDWR)
1317 /* and it was already denied: */
1318 && (ad->ad_rfp->adf_flags & O_RDONLY)) {
1322 ad->ad_rfp->adf_flags &= ~( O_TRUNC | O_CREAT );
1323 ad->ad_rfp->adf_refcount++;
1324 EC_NEG1_LOG( ad_reso_size(path, adflags, ad));
1328 if (ad_meta_fileno(ad) < 0)
1330 if ((ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad), AD_EA_RESO, oflags)) == -1) {
1331 if (!(adflags & ADFLAGS_CREATE)) {
1336 EC_NEG1_LOG( ad_reso_fileno(ad) = sys_getxattrfd(ad_meta_fileno(ad),
1337 AD_EA_RESO, oflags, 0666) );
1340 EC_NULL_LOG( rfpath = ad->ad_ops->ad_path(path, adflags) );
1341 if ((ad_reso_fileno(ad) = open(rfpath, oflags)) == -1) {
1342 if (!(adflags & ADFLAGS_CREATE))
1345 EC_NEG1_LOG( ad_reso_fileno(ad) = open(rfpath, oflags, mode) );
1346 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork: \"%s\"",
1351 ad->ad_rfp->adf_refcount = 1;
1352 ad->ad_rfp->adf_flags = oflags;
1355 EC_ZERO_LOG( fstat(ad_reso_fileno(ad), &st) );
1356 if (ad->ad_rfp->adf_flags & O_CREAT) {
1357 /* This is a new adouble header file, create it */
1358 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, initializing: \"%s\"",
1360 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): created adouble rfork, flushing: \"%s\"",
1364 /* Read the adouble header */
1365 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): reading adouble rfork: \"%s\"",
1367 EC_NEG1_LOG( ad_header_read_osx(NULL, ad, &st) );
1371 (void)ad_reso_size(path, adflags, ad);
1375 if (opened && (ad_reso_fileno(ad) != -1)) {
1376 close(ad_reso_fileno(ad));
1377 ad_reso_fileno(ad) = -1;
1378 ad->ad_rfp->adf_refcount = 0;
1380 if (adflags & ADFLAGS_NORF) {
1384 (void)ad_close(ad, closeflags);
1390 LOG(log_debug, logtype_default, "ad_open_rf(\"%s\"): END: %d", fullpathname(path), ret);
1396 * Open ressource fork
1398 static int ad_open_rf(const char *path, int adflags, int mode, struct adouble *ad)
1402 switch (ad->ad_vers) {
1404 ret = ad_open_rf_v2(path, adflags, mode, ad);
1407 ret = ad_open_rf_ea(path, adflags, mode, ad);
1417 /***********************************************************************************
1419 ********************************************************************************* */
1421 off_t ad_getentryoff(const struct adouble *ad, int eid)
1423 if (ad->ad_vers == AD_VERSION2)
1424 return ad->ad_eid[eid].ade_off;
1433 return ADEDOFF_RFORK_OSX;
1436 return ad->ad_eid[eid].ade_off;
1439 AFP_PANIC("What am I doing here?");
1442 const char *ad_path_ea( const char *path, int adflags _U_)
1447 const char *ad_path_osx(const char *path, int adflags _U_)
1449 static char pathbuf[ MAXPATHLEN + 1];
1450 char c, *slash, buf[MAXPATHLEN + 1];
1452 if (!strcmp(path,".")) {
1454 getcwd(buf, MAXPATHLEN);
1457 strlcpy(buf, path, MAXPATHLEN +1);
1459 if (NULL != ( slash = strrchr( buf, '/' )) ) {
1462 strlcpy( pathbuf, buf, MAXPATHLEN +1);
1465 pathbuf[ 0 ] = '\0';
1468 strlcat( pathbuf, "._", MAXPATHLEN +1);
1469 strlcat( pathbuf, slash, MAXPATHLEN +1);
1474 * Put the .AppleDouble where it needs to be:
1476 * / a/.AppleDouble/b
1478 * \ b/.AppleDouble/.Parent
1480 * FIXME: should do something for pathname > MAXPATHLEN
1482 const char *ad_path( const char *path, int adflags)
1484 static char pathbuf[ MAXPATHLEN + 1];
1488 if ( adflags & ADFLAGS_DIR ) {
1489 l = strlcpy( pathbuf, path, sizeof(pathbuf));
1491 if ( l && l < MAXPATHLEN) {
1494 strlcpy(pathbuf +l, ".AppleDouble/.Parent", sizeof(pathbuf) -l);
1496 if (NULL != ( slash = strrchr( path, '/' )) ) {
1499 /* XXX we must return NULL here and test in the caller */
1502 memcpy( pathbuf, path, l);
1507 l += strlcpy( pathbuf +l, ".AppleDouble/", sizeof(pathbuf) -l);
1508 strlcpy( pathbuf + l, slash, sizeof(pathbuf) -l);
1514 /* -------------------------
1515 * Support inherited protection modes for AppleDouble files. The supplied
1516 * mode is ANDed with the parent directory's mask value in lieu of "umask",
1517 * and that value is returned.
1519 char *ad_dir(const char *path)
1521 static char modebuf[ MAXPATHLEN + 1];
1524 * For a path with directories in it, remove the final component
1525 * (path or subdirectory name) to get the name we want to stat.
1526 * For a path which is just a filename, use "." instead.
1528 slash = strrchr( path, '/' );
1533 if (len >= MAXPATHLEN) {
1534 errno = ENAMETOOLONG;
1535 return NULL; /* can't do it */
1537 memcpy( modebuf, path, len );
1538 modebuf[len] = '\0';
1539 /* is last char a '/' ? */
1540 if (slash[1] == 0) {
1541 slash = modebuf+ len;
1543 while (modebuf < slash && slash[-1] == '/') {
1546 if (modebuf == slash) {
1550 while (modebuf < slash && *slash != '/') {
1553 if (modebuf == slash) {
1556 *slash = '\0'; /* remove pathname component */
1561 modebuf[0] = '.'; /* use current directory */
1566 int ad_setfuid(const uid_t id)
1572 /* ---------------- */
1573 uid_t ad_getfuid(void)
1579 stat path parent directory
1581 int ad_stat(const char *path, struct stat *stbuf)
1588 return lstat( p, stbuf );
1592 return access right of path parent directory
1594 int ad_mode( const char *path, mode_t mode)
1597 ad_mode_st(path, &mode, &stbuf);
1602 * Use mkdir() with mode bits taken from ad_mode().
1604 int ad_mkdir( const char *path, mode_t mode)
1610 LOG(log_debug, logtype_default, "ad_mkdir(\"%s\", %04o) {cwd: \"%s\"}",
1611 path, mode, getcwdpath());
1613 st_invalid = ad_mode_st(path, &mode, &stbuf);
1614 ret = mkdir( path, mode );
1615 if (ret || st_invalid)
1617 ad_chown(path, &stbuf);
1622 static void ad_init_func(struct adouble *ad)
1624 switch (ad->ad_vers) {
1626 ad->ad_ops = &ad_adouble;
1627 ad->ad_rfp = &ad->ad_resource_fork;
1628 ad->ad_mdp = &ad->ad_resource_fork;
1631 ad->ad_ops = &ad_adouble_ea;
1632 ad->ad_rfp = &ad->ad_resource_fork;
1633 ad->ad_mdp = &ad->ad_data_fork;
1636 AFP_PANIC("ad_init: unknown AD version");
1640 ad_data_fileno(ad) = -1;
1641 ad_reso_fileno(ad) = -1;
1642 ad_meta_fileno(ad) = -1;
1643 ad->ad_refcount = 1;
1647 void ad_init_old(struct adouble *ad, int flags, int options)
1649 memset(ad, 0, sizeof(struct adouble));
1650 ad->ad_vers = flags;
1651 ad->ad_options = options;
1655 void ad_init(struct adouble *ad, const struct vol * restrict vol)
1657 memset(ad, 0, sizeof(struct adouble));
1658 ad->ad_vers = vol->v_adouble;
1659 ad->ad_options = vol->v_ad_options;
1664 * Open data-, metadata(header)- or ressource fork
1666 * ad_open(struct adouble *ad, const char *path, int adflags, int flags)
1667 * ad_open(struct adouble *ad, const char *path, int adflags, int flags, mode_t mode)
1669 * You must call ad_init() before ad_open, usually you'll just call it like this: \n
1672 * ad_init(&ad, vol->v_adouble, vol->v_ad_options);
1675 * Open a files data fork, metadata fork or ressource fork.
1677 * @param ad (rw) pointer to struct adouble
1678 * @param path (r) Path to file or directory
1679 * @param adflags (r) Flags specifying which fork to open, can be or'd:
1680 * ADFLAGS_DF: open data fork
1681 * ADFLAGS_RF: open ressource fork
1682 * ADFLAGS_HF: open header (metadata) file
1683 * ADFLAGS_NOHF: it's not an error if header file couldn't be opened
1684 * ADFLAGS_NORF: it's not an error if reso fork couldn't be opened
1685 * ADFLAGS_DIR: if path is a directory you MUST or ADFLAGS_DIR to adflags
1687 * Access mode for the forks:
1688 * ADFLAGS_RDONLY: open read only
1689 * ADFLAGS_RDWR: open read write
1692 * ADFLAGS_CREATE: create if not existing
1693 * ADFLAGS_TRUNC: truncate
1696 * ADFLAGS_CHECK_OF: check for open forks from us and other afpd's
1697 * ADFLAGS_SETSHRMD: this adouble struct will be used to set sharemode locks.
1698 * This basically results in the files being opened RW instead of RDONLY.
1699 * @param mode (r) mode used with O_CREATE
1701 * The open mode flags (rw vs ro) have to take into account all the following requirements:
1702 * - we remember open fds for files because me must avoid a single close releasing fcntl locks for other
1703 * fds of the same file
1705 * @returns 0 on success, any other value indicates an error
1707 int ad_open(struct adouble *ad, const char *path, int adflags, ...)
1713 LOG(log_debug, logtype_default,
1714 "ad_open(\"%s\", %s): BEGIN [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1715 fullpathname(path), adflags2logstr(adflags),
1716 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1717 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1718 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1720 if (adflags & ADFLAGS_CHECK_OF)
1721 /* Checking for open forks requires sharemode lock support (ie RDWR instead of RDONLY) */
1722 adflags |= ADFLAGS_SETSHRMD;
1724 if (adflags & ADFLAGS_SETSHRMD)
1725 /* sharemode locks are stored in the data fork */
1726 adflags |= ADFLAGS_DF;
1728 if (ad->ad_vers == AD_VERSION2) {
1729 if (adflags & ADFLAGS_RF)
1730 adflags |= ADFLAGS_HF;
1731 if (adflags & ADFLAGS_NORF)
1732 adflags |= ADFLAGS_NOHF;
1735 if (ad->ad_inited != AD_INITED) {
1736 ad->ad_adflags = adflags;
1737 ad->ad_inited = AD_INITED;
1739 ad->ad_open_forks = ((ad->ad_data_fork.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
1740 if (ad->ad_resource_fork.adf_refcount > 0)
1741 ad->ad_open_forks |= ATTRBIT_ROPEN;
1744 va_start(args, adflags);
1745 if (adflags & ADFLAGS_CREATE)
1746 mode = va_arg(args, mode_t);
1749 if (adflags & ADFLAGS_DF) {
1750 EC_ZERO( ad_open_df(path, adflags, mode, ad) );
1753 if (adflags & ADFLAGS_HF) {
1754 EC_ZERO( ad_open_hf(path, adflags, mode, ad) );
1757 if (adflags & ADFLAGS_RF) {
1758 EC_ZERO( ad_open_rf(path, adflags, mode, ad) );
1761 if (adflags & ADFLAGS_CHECK_OF) {
1762 ad->ad_open_forks |= ad_openforks(ad, ad->ad_open_forks);
1766 LOG(log_debug, logtype_default,
1767 "ad_open(\"%s\"): END: %d [dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
1768 fullpathname(path), ret,
1769 ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
1770 ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
1771 ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
1777 * @brief open metadata, possibly as root
1779 * Return only metadata but try very hard ie at first try as user, then try as root.
1781 * @param name name of file/dir
1782 * @param flags ADFLAGS_DIR: name is a directory \n
1783 * ADFLAGS_CHECK_OF: test if name is open by us or another afpd process
1785 * @param adp pointer to struct adouble
1787 int ad_metadata(const char *name, int flags, struct adouble *adp)
1790 int ret, err, oflags;
1792 /* Sanitize flags */
1793 oflags = (flags & (ADFLAGS_CHECK_OF | ADFLAGS_DIR)) | ADFLAGS_HF | ADFLAGS_RDONLY;
1795 if ((ret = ad_open(adp, name, oflags)) < 0 && errno == EACCES) {
1798 LOG(log_error, logtype_default, "ad_metadata(%s): seteuid failed %s", name, strerror(errno));
1802 /* we are root open read only */
1803 ret = ad_open(adp, name, oflags);
1805 if ( seteuid(uid) < 0) {
1806 LOG(log_error, logtype_default, "ad_metadata: can't seteuid back");
1816 * @brief openat like wrapper for ad_metadata
1818 int ad_metadataat(int dirfd, const char *name, int flags, struct adouble *adp)
1824 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0)) {
1830 if (ad_metadata(name, flags, adp) < 0) {
1837 if (fchdir(cwdfd) != 0) {
1838 LOG(log_error, logtype_afpd, "ad_openat: cant chdir back, exiting");
1851 int ad_refresh(const char *path, struct adouble *ad)
1853 switch (ad->ad_vers) {
1855 if (ad_meta_fileno(ad) == -1)
1857 return ad->ad_ops->ad_header_read(NULL, ad, NULL);
1861 if (AD_META_OPEN(ad)) {
1862 if (ad_data_fileno(ad) == -1)
1864 // TODO: read meta EA
1867 if (AD_RSRC_OPEN(ad)) {
1868 if (ad_reso_fileno(ad) == -1)
1871 if (fstat(ad_reso_fileno(ad), &st) == -1)
1873 ad->ad_rlen = st.st_size;
1876 if (AD_META_OPEN(ad)) {
1877 if (ad_data_fileno(ad) == -1)
1879 // TODO: read meta EA
1881 if (AD_RSRC_OPEN(ad)) {
1882 if (ad_reso_fileno(ad) == -1)
1884 if (ad_header_read_osx(path, ad, NULL) < 0)
1888 return ad->ad_ops->ad_header_read(path, ad, NULL);
1897 int ad_openat(struct adouble *ad,
1898 int dirfd, /* dir fd openat like */
1908 if ((cwdfd = open(".", O_RDONLY) == -1) || (fchdir(dirfd) != 0))
1912 va_start(args, adflags);
1913 if (adflags & ADFLAGS_CREATE)
1914 mode = va_arg(args, mode_t);
1917 EC_NEG1( ad_open(ad, path, adflags, mode) );
1920 if (fchdir(cwdfd) != 0) {
1921 AFP_PANIC("ad_openat: cant chdir back");
1932 int ad_convert(const char *path, const struct stat *sp, const struct vol *vol)
1936 int adflags = S_ISDIR(sp->st_mode) ? ADFLAGS_DIR : 0;
1938 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): BEGIN", fullpathname(path));
1940 if (!(vol->v_adouble == AD_VERSION_EA) || (vol->v_flags & AFPVOL_NOV2TOEACONV))
1943 EC_ZERO( ad_conv_v22ea_hf(path, sp, vol) );
1944 EC_ZERO( ad_conv_v22ea_rf(path, sp, vol) );
1946 EC_NULL( adpath = ad_path(path, adflags) );
1947 LOG(log_debug, logtype_default,"ad_conv_v22ea_hf(\"%s\"): deleting adouble:v2 file: \"%s\"",
1948 path, fullpathname(adpath));
1951 EC_ZERO_LOG( unlink(adpath) );
1955 LOG(log_debug, logtype_default,"ad_convert(\"%s\"): END: %d", fullpathname(path), ret);
1959 /* build a resource fork mode from the data fork mode:
1960 * remove X mode and extend header to RW if R or W (W if R for locking),
1962 mode_t ad_hf_mode(mode_t mode)
1964 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
1965 /* fnctl lock need write access */
1966 if ((mode & S_IRUSR))
1968 if ((mode & S_IRGRP))
1970 if ((mode & S_IROTH))
1973 /* if write mode set add read mode */
1974 if ((mode & S_IWUSR))
1976 if ((mode & S_IWGRP))
1978 if ((mode & S_IWOTH))