2 Bacula® - The Network Backup Solution
4 Copyright (C) 2008-2009 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * Functions to handle Extended Attributes for bacula.
31 * Extended Attributes are so OS specific we only restore Extended Attributes if
32 * they were saved using a filed on the same platform.
34 * Currently we support the following OSes:
35 * - Darwin (Extended Attributes)
36 * - Linux (Extended Attributes)
37 * - NetBSD (Extended Attributes)
38 * - FreeBSD (Extended Attributes)
39 * - OpenBSD (Extended Attributes)
40 * (As it seems either they never implemented xattr or they are removed
41 * the support as it stated it was in version 3.1 but the current syscall
42 * tabled shows the extattr_ functions are not implemented. So as such we
43 * might eventually support xattr on OpenBSD when they implemented them using
44 * the same interface as FreeBSD and NetBSD.
45 * - Solaris (Extended Attributes and Extensible Attributes)
47 * Written by Marco van Wieringen, November MMVIII
54 #if !defined(HAVE_XATTR)
56 * Entry points when compiled without support for XATTRs or on an unsupported platform.
58 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
60 return bxattr_exit_fatal;
63 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
65 return bxattr_exit_fatal;
69 * Send a XATTR stream to the SD.
71 static bxattr_exit_code send_xattr_stream(JCR *jcr, int stream)
73 BSOCK *sd = jcr->store_bsock;
75 #ifdef FD_NO_SEND_TEST
76 return bxattr_exit_ok;
82 if (jcr->xattr_data->content_length <= 0) {
83 return bxattr_exit_ok;
89 if (!sd->fsend("%ld %d 0", jcr->JobFiles, stream)) {
90 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
92 return bxattr_exit_fatal;
96 * Send the buffer to the storage deamon
98 Dmsg1(400, "Backing up XATTR <%s>\n", jcr->xattr_data->content);
100 sd->msg = jcr->xattr_data->content;
101 sd->msglen = jcr->xattr_data->content_length;
105 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
107 return bxattr_exit_fatal;
110 jcr->JobBytes += sd->msglen;
112 if (!sd->signal(BNET_EOD)) {
113 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
115 return bxattr_exit_fatal;
117 Dmsg1(200, "XATTR of file: %s successfully backed up!\n", jcr->last_fname);
118 return bxattr_exit_ok;
122 * First some generic functions for OSes that use the same xattr encoding scheme.
124 #if defined(HAVE_DARWIN_OS) || \
125 defined(HAVE_LINUX_OS) || \
126 defined(HAVE_NETBSD_OS) || \
127 defined(HAVE_FREEBSD_OS) || \
128 defined(HAVE_OPENBSD_OS)
130 static void xattr_drop_internal_table(alist *xattr_value_list)
132 xattr_t *current_xattr;
135 * Walk the list of xattrs and free allocated memory on traversing.
137 foreach_alist(current_xattr, xattr_value_list) {
139 * See if we can shortcut.
141 if (current_xattr == NULL || current_xattr->magic != XATTR_MAGIC)
144 free(current_xattr->name);
146 if (current_xattr->value_length > 0)
147 free(current_xattr->value);
150 delete xattr_value_list;
154 * The xattr stream for OSX, FreeBSD, Linux and NetBSD is a serialized stream of bytes
155 * which encodes one or more xattr_t structures.
157 * The Serialized stream consists of the following elements:
158 * magic - A magic string which makes it easy to detect any binary incompatabilites
159 * name_length - The length of the following xattr name
160 * name - The name of the extended attribute
161 * value_length - The length of the following xattr data
162 * value - The actual content of the extended attribute
164 * This is repeated 1 or more times.
167 static uint32_t serialize_xattr_stream(JCR *jcr, uint32_t expected_serialize_len, alist *xattr_value_list)
169 xattr_t *current_xattr;
173 * Make sure the serialized stream fits in the poolmem buffer.
174 * We allocate some more to be sure the stream is gonna fit.
176 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, expected_serialize_len + 10);
177 ser_begin(jcr->xattr_data->content, expected_serialize_len + 10);
180 * Walk the list of xattrs and serialize the data.
182 foreach_alist(current_xattr, xattr_value_list) {
184 * See if we can shortcut.
186 if (current_xattr == NULL || current_xattr->magic != XATTR_MAGIC)
189 ser_uint32(current_xattr->magic);
190 ser_uint32(current_xattr->name_length);
191 ser_bytes(current_xattr->name, current_xattr->name_length);
193 ser_uint32(current_xattr->value_length);
194 ser_bytes(current_xattr->value, current_xattr->value_length);
197 ser_end(jcr->xattr_data->content, expected_serialize_len + 10);
198 jcr->xattr_data->content_length = ser_length(jcr->xattr_data->content);
200 return jcr->xattr_data->content_length;
203 static bxattr_exit_code unserialize_xattr_stream(JCR *jcr, alist *xattr_value_list)
206 xattr_t *current_xattr;
207 bxattr_exit_code retval = bxattr_exit_ok;
210 * Parse the stream and call restore_xattr_on_file for each extended attribute.
212 * Start unserializing the data. We keep on looping while we have not
213 * unserialized all bytes in the stream.
215 unser_begin(jcr->xattr_data->content, jcr->xattr_data->content_length);
216 while (unser_length(jcr->xattr_data->content) < jcr->xattr_data->content_length) {
218 * First make sure the magic is present. This way we can easily catch corruption.
219 * Any missing MAGIC is fatal we do NOT try to continue.
222 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
223 unser_uint32(current_xattr->magic);
224 if (current_xattr->magic != XATTR_MAGIC) {
225 Mmsg1(jcr->errmsg, _("Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n"),
227 Dmsg1(100, "Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n",
230 return bxattr_exit_error;
234 * Decode the valuepair. First decode the length of the name.
236 unser_uint32(current_xattr->name_length);
239 * Allocate room for the name and decode its content.
241 current_xattr->name = (char *)malloc(current_xattr->name_length + 1);
242 unser_bytes(current_xattr->name, current_xattr->name_length);
245 * The xattr_name needs to be null terminated for lsetxattr.
247 current_xattr->name[current_xattr->name_length] = '\0';
250 * Decode the value length.
252 unser_uint32(current_xattr->value_length);
255 * Allocate room for the value and decode its content.
257 current_xattr->value = (char *)malloc(current_xattr->value_length);
258 unser_bytes(current_xattr->value, current_xattr->value_length);
260 xattr_value_list->append(current_xattr);
263 unser_end(jcr->xattr_data->content, jcr->xattr_data->content_length);
269 * This is a supported OS, See what kind of interface we should use.
271 #if defined(HAVE_DARWIN_OS) || \
272 defined(HAVE_LINUX_OS)
274 #if (!defined(HAVE_LISTXATTR) && !defined(HAVE_LLISTXATTR)) || \
275 (!defined(HAVE_GETXATTR) && !defined(HAVE_LGETXATTR)) || \
276 (!defined(HAVE_SETXATTR) && !defined(HAVE_LSETXATTR))
277 #error "Missing either full support for the LXATTR or XATTR functions."
280 #ifdef HAVE_SYS_XATTR_H
281 #include <sys/xattr.h>
283 #error "Missing sys/xattr.h header file"
287 * Define the supported XATTR streams for this OS
289 #if defined(HAVE_DARWIN_OS)
290 static int os_default_xattr_streams[1] = { STREAM_XATTR_DARWIN };
291 static const char *xattr_acl_skiplist[2] = { "com.apple.system.Security", NULL };
292 static const char *xattr_skiplist[3] = { "com.apple.system.extendedsecurity", "com.apple.ResourceFork", NULL };
293 #elif defined(HAVE_LINUX_OS)
294 static int os_default_xattr_streams[1] = { STREAM_XATTR_LINUX };
295 static const char *xattr_acl_skiplist[2] = { "system.posix_acl_access", NULL };
296 static const char *xattr_skiplist[1] = { NULL };
300 * OSX doesn't have llistxattr, lgetxattr and lsetxattr but has
301 * listxattr, getxattr and setxattr with an extra options argument
302 * which mimics the l variants of the functions when we specify
303 * XATTR_NOFOLLOW as the options value.
305 #if defined(HAVE_DARWIN_OS)
306 #define llistxattr(path, list, size) listxattr((path), (list), (size), XATTR_NOFOLLOW)
307 #define lgetxattr(path, name, value, size) getxattr((path), (name), (value), (size), 0, XATTR_NOFOLLOW)
308 #define lsetxattr(path, name, value, size, flags) setxattr((path), (name), (value), (size), (flags), XATTR_NOFOLLOW)
311 * Fallback to the non l-functions when those are not available.
313 #if defined(HAVE_GETXATTR) && !defined(HAVE_LGETXATTR)
314 #define lgetxattr getxattr
316 #if defined(HAVE_SETXATTR) && !defined(HAVE_LSETXATTR)
317 #define lsetxattr setxattr
319 #if defined(HAVE_LISTXATTR) && !defined(HAVE_LLISTXATTR)
320 #define llistxattr listxattr
324 static bxattr_exit_code linux_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
327 char *xattr_list, *bp;
328 int cnt, xattr_count = 0;
329 int32_t xattr_list_len,
331 uint32_t expected_serialize_len = 0;
332 xattr_t *current_xattr;
333 alist *xattr_value_list = NULL;
334 bxattr_exit_code retval = bxattr_exit_error;
338 * First get the length of the available list with extended attributes.
340 xattr_list_len = llistxattr(jcr->last_fname, NULL, 0);
341 if (xattr_list_len < 0) {
344 return bxattr_exit_ok;
346 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
347 jcr->last_fname, be.bstrerror());
348 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
349 jcr->last_fname, be.bstrerror());
350 return bxattr_exit_error;
352 } else if (xattr_list_len == 0) {
353 return bxattr_exit_ok;
357 * Allocate room for the extented attribute list.
359 xattr_list = (char *)malloc(xattr_list_len + 1);
360 memset((caddr_t)xattr_list, 0, xattr_list_len + 1);
363 * Get the actual list of extended attributes names for a file.
365 xattr_list_len = llistxattr(jcr->last_fname, xattr_list, xattr_list_len);
366 if (xattr_list_len < 0) {
369 retval = bxattr_exit_ok;
372 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
373 jcr->last_fname, be.bstrerror());
374 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
375 jcr->last_fname, be.bstrerror());
379 xattr_list[xattr_list_len] = '\0';
381 xattr_value_list = New(alist(10, not_owned_by_alist));
384 * Walk the list of extended attributes names and retrieve the data.
385 * We already count the bytes needed for serializing the stream later on.
388 while ((bp - xattr_list) + 1 < xattr_list_len) {
392 * On some OSes you also get the acls in the extented attribute list.
393 * So we check if we are already backing up acls and if we do we
394 * don't store the extended attribute with the same info.
396 if (ff_pkt->flags & FO_ACL) {
397 for (cnt = 0; xattr_acl_skiplist[cnt] != NULL; cnt++) {
398 if (bstrcmp(bp, xattr_acl_skiplist[cnt])) {
406 * On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
409 for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
410 if (bstrcmp(bp, xattr_skiplist[cnt])) {
418 bp = strchr(bp, '\0') + 1;
423 * Each xattr valuepair starts with a magic so we can parse it easier.
425 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
426 current_xattr->magic = XATTR_MAGIC;
427 expected_serialize_len += sizeof(current_xattr->magic);
430 * Allocate space for storing the name.
432 current_xattr->name_length = strlen(bp);
433 current_xattr->name = (char *)malloc(current_xattr->name_length);
434 memcpy((caddr_t)current_xattr->name, (caddr_t)bp, current_xattr->name_length);
436 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
439 * First see how long the value is for the extended attribute.
441 xattr_value_len = lgetxattr(jcr->last_fname, bp, NULL, 0);
442 if (xattr_value_len < 0) {
445 retval = bxattr_exit_ok;
446 free(current_xattr->name);
450 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
451 jcr->last_fname, be.bstrerror());
452 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
453 jcr->last_fname, be.bstrerror());
454 free(current_xattr->name);
461 * Allocate space for storing the value.
463 current_xattr->value = (char *)malloc(xattr_value_len);
464 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
466 xattr_value_len = lgetxattr(jcr->last_fname, bp, current_xattr->value, xattr_value_len);
467 if (xattr_value_len < 0) {
470 retval = bxattr_exit_ok;
471 free(current_xattr->value);
472 free(current_xattr->name);
476 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
477 jcr->last_fname, be.bstrerror());
478 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
479 jcr->last_fname, be.bstrerror());
480 free(current_xattr->value);
481 free(current_xattr->name);
488 * Store the actual length of the value.
490 current_xattr->value_length = xattr_value_len;
491 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
494 * Protect ourself against things getting out of hand.
496 if (expected_serialize_len >= MAX_XATTR_STREAM) {
497 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
498 jcr->last_fname, MAX_XATTR_STREAM);
499 free(current_xattr->value);
500 free(current_xattr->name);
505 xattr_value_list->append(current_xattr);
507 bp = strchr(bp, '\0') + 1;
511 xattr_list = (char *)NULL;
514 * If we found any xattr send them to the SD.
516 if (xattr_count > 0) {
518 * Serialize the datastream.
520 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
521 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
523 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
528 xattr_drop_internal_table(xattr_value_list);
531 * Send the datastream to the SD.
533 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
535 xattr_drop_internal_table(xattr_value_list);
537 return bxattr_exit_ok;
544 if (xattr_value_list) {
545 xattr_drop_internal_table(xattr_value_list);
550 static bxattr_exit_code linux_xattr_parse_streams(JCR *jcr, int stream)
552 xattr_t *current_xattr;
553 alist *xattr_value_list;
556 xattr_value_list = New(alist(10, not_owned_by_alist));
558 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
559 xattr_drop_internal_table(xattr_value_list);
560 return bxattr_exit_error;
563 foreach_alist(current_xattr, xattr_value_list) {
564 if (lsetxattr(jcr->last_fname, current_xattr->name, current_xattr->value, current_xattr->value_length, 0) != 0) {
569 Mmsg2(jcr->errmsg, _("lsetxattr error on file \"%s\": ERR=%s\n"),
570 jcr->last_fname, be.bstrerror());
571 Dmsg2(100, "lsetxattr error file=%s ERR=%s\n",
572 jcr->last_fname, be.bstrerror());
578 xattr_drop_internal_table(xattr_value_list);
579 return bxattr_exit_ok;
582 xattr_drop_internal_table(xattr_value_list);
583 return bxattr_exit_error;
587 * Function pointers to the build and parse function to use for these xattrs.
589 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = linux_xattr_build_streams;
590 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = linux_xattr_parse_streams;
592 #elif defined(HAVE_FREEBSD_OS) || \
593 defined(HAVE_NETBSD_OS) || \
594 defined(HAVE_OPENBSD_OS)
596 #if (!defined(HAVE_EXTATTR_GET_LINK) && !defined(HAVE_EXTATTR_GET_FILE)) || \
597 (!defined(HAVE_EXTATTR_SET_LINK) && !defined(HAVE_EXTATTR_SET_FILE)) || \
598 (!defined(HAVE_EXTATTR_LIST_LINK) && !defined(HAVE_EXTATTR_LIST_FILE)) || \
599 !defined(HAVE_EXTATTR_NAMESPACE_TO_STRING) || \
600 !defined(HAVE_EXTATTR_STRING_TO_NAMESPACE)
601 #error "Missing full support for the extattr functions."
604 #ifdef HAVE_SYS_EXTATTR_H
605 #include <sys/extattr.h>
607 #error "Missing sys/extattr.h header file"
610 #ifdef HAVE_LIBUTIL_H
614 #if !defined(HAVE_EXTATTR_GET_LINK) && defined(HAVE_EXTATTR_GET_FILE)
615 #define extattr_get_link extattr_get_file
617 #if !defined(HAVE_EXTATTR_SET_LINK) && defined(HAVE_EXTATTR_SET_FILE)
618 #define extattr_set_link extattr_set_file
620 #if !defined(HAVE_EXTATTR_LIST_LINK) && defined(HAVE_EXTATTR_LIST_FILE)
621 #define extattr_list_link extattr_list_file
624 #if defined(HAVE_FREEBSD_OS)
625 static int os_default_xattr_streams[1] = { STREAM_XATTR_FREEBSD };
626 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
627 static const char *xattr_acl_skiplist[2] = { "system.posix1e.acl_access", NULL };
628 static const char *xattr_skiplist[1] = { NULL };
629 #elif defined(HAVE_NETBSD_OS)
630 static int os_default_xattr_streams[1] = { STREAM_XATTR_NETBSD };
631 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
632 static const char *xattr_acl_skiplist[1] = { NULL };
633 static const char *xattr_skiplist[1] = { NULL };
634 #elif defined(HAVE_OPENBSD_OS)
635 static int os_default_xattr_streams[1] = { STREAM_XATTR_OPENBSD };
636 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
637 static const char *xattr_acl_skiplist[1] = { NULL };
638 static const char *xattr_skiplist[1] = { NULL };
641 static bxattr_exit_code bsd_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
645 int cnt, index, xattr_count = 0;
646 int32_t xattr_list_len,
648 uint32_t expected_serialize_len = 0;
649 unsigned int namespace_index;
651 char *current_attrnamespace = NULL, current_attrname[BUFSIZ], current_attrtuple[BUFSIZ];
652 xattr_t *current_xattr;
653 alist *xattr_value_list = NULL;
654 bxattr_exit_code retval = bxattr_exit_error;
657 xattr_value_list = New(alist(10, not_owned_by_alist));
660 * Loop over all available xattr namespaces.
662 for (namespace_index = 0; namespace_index < sizeof(os_default_xattr_namespaces) / sizeof(int); namespace_index++) {
663 attrnamespace = os_default_xattr_namespaces[namespace_index];
666 * Convert the numeric attrnamespace into a string representation and make a private copy of that string.
668 if (extattr_namespace_to_string(attrnamespace, ¤t_attrnamespace) != 0) {
669 Mmsg2(jcr->errmsg, _("Failed to convert %d into namespace on file \"%s\"\n"),
670 attrnamespace, jcr->last_fname);
671 Dmsg2(100, "Failed to convert %d into namespace on file \"%s\"\n",
672 attrnamespace, jcr->last_fname);
676 current_attrnamespace = bstrdup(current_attrnamespace);
679 * First get the length of the available list with extended attributes.
681 xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, NULL, 0);
682 if (xattr_list_len < 0) {
685 retval = bxattr_exit_ok;
688 Mmsg2(jcr->errmsg, _("extattr_list_link error on file \"%s\": ERR=%s\n"),
689 jcr->last_fname, be.bstrerror());
690 Dmsg2(100, "extattr_list_link error file=%s ERR=%s\n",
691 jcr->last_fname, be.bstrerror());
694 } else if (xattr_list_len == 0) {
699 * Allocate room for the extented attribute list.
701 xattr_list = (char *)malloc(xattr_list_len + 1);
702 memset((caddr_t)xattr_list, 0, xattr_list_len + 1);
705 * Get the actual list of extended attributes names for a file.
707 xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, xattr_list, xattr_list_len);
708 if (xattr_list_len < 0) {
711 retval = bxattr_exit_ok;
714 Mmsg2(jcr->errmsg, _("extattr_list_link error on file \"%s\": ERR=%s\n"),
715 jcr->last_fname, be.bstrerror());
716 Dmsg2(100, "extattr_list_link error file=%s ERR=%s\n",
717 jcr->last_fname, be.bstrerror());
721 xattr_list[xattr_list_len] = '\0';
724 * Walk the list of extended attributes names and retrieve the data.
725 * We already count the bytes needed for serializing the stream later on.
727 for (index = 0; index < xattr_list_len; index += xattr_list[index] + 1) {
731 * print the current name into the buffer as its not null terminated we need to
732 * use the length encoded in the string for copying only the needed bytes.
734 bsnprintf(current_attrname, sizeof(current_attrname), "%*.*s",
735 xattr_list[index], xattr_list[index], xattr_list + (index + 1));
738 * First make a xattr tuple of the current namespace and the name of the xattr.
739 * e.g. something like user.<attrname> or system.<attrname>
741 bsnprintf(current_attrtuple, sizeof(current_attrtuple), "%s.%s", current_attrnamespace, current_attrname);
744 * On some OSes you also get the acls in the extented attribute list.
745 * So we check if we are already backing up acls and if we do we
746 * don't store the extended attribute with the same info.
748 if (ff_pkt->flags & FO_ACL) {
749 for (cnt = 0; xattr_acl_skiplist[cnt] != NULL; cnt++) {
750 if (bstrcmp(current_attrtuple, xattr_acl_skiplist[cnt])) {
758 * On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
761 for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
762 if (bstrcmp(current_attrtuple, xattr_skiplist[cnt])) {
774 * Each xattr valuepair starts with a magic so we can parse it easier.
776 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
777 current_xattr->magic = XATTR_MAGIC;
778 expected_serialize_len += sizeof(current_xattr->magic);
781 * Allocate space for storing the name.
783 current_xattr->name_length = strlen(current_attrtuple);
784 current_xattr->name = (char *)malloc(current_xattr->name_length);
785 memcpy((caddr_t)current_xattr->name, (caddr_t)current_attrtuple, current_xattr->name_length);
787 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
790 * First see how long the value is for the extended attribute.
792 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, NULL, 0);
793 if (xattr_value_len < 0) {
796 retval = bxattr_exit_ok;
797 free(current_xattr->name);
801 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
802 jcr->last_fname, be.bstrerror());
803 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
804 jcr->last_fname, be.bstrerror());
805 free(current_xattr->name);
812 * Allocate space for storing the value.
814 current_xattr->value = (char *)malloc(xattr_value_len);
815 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
817 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, current_xattr->value, xattr_value_len);
818 if (xattr_value_len < 0) {
821 retval = bxattr_exit_ok;
822 free(current_xattr->value);
823 free(current_xattr->name);
827 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
828 jcr->last_fname, be.bstrerror());
829 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
830 jcr->last_fname, be.bstrerror());
831 free(current_xattr->value);
832 free(current_xattr->name);
839 * Store the actual length of the value.
841 current_xattr->value_length = xattr_value_len;
842 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
845 * Protect ourself against things getting out of hand.
847 if (expected_serialize_len >= MAX_XATTR_STREAM) {
848 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
849 jcr->last_fname, MAX_XATTR_STREAM);
850 free(current_xattr->value);
851 free(current_xattr->name);
856 xattr_value_list->append(current_xattr);
859 free(current_attrnamespace);
863 * We are done with this xattr list.
866 xattr_list = (char *)NULL;
870 * If we found any xattr send them to the SD.
872 if (xattr_count > 0) {
874 * Serialize the datastream.
876 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
877 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
879 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
884 xattr_drop_internal_table(xattr_value_list);
885 xattr_value_list = NULL;
888 * Send the datastream to the SD.
890 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
892 xattr_drop_internal_table(xattr_value_list);
893 xattr_value_list = NULL;
895 return bxattr_exit_ok;
899 if (current_attrnamespace) {
900 free(current_attrnamespace);
905 if (xattr_value_list) {
906 xattr_drop_internal_table(xattr_value_list);
907 xattr_value_list = NULL;
912 static bxattr_exit_code bsd_parse_xattr_streams(JCR *jcr, int stream)
914 xattr_t *current_xattr;
915 alist *xattr_value_list;
916 int current_attrnamespace, cnt;
917 char *attrnamespace, *attrname;
920 xattr_value_list = New(alist(10, not_owned_by_alist));
922 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
923 xattr_drop_internal_table(xattr_value_list);
924 return bxattr_exit_error;
927 foreach_alist(current_xattr, xattr_value_list) {
929 * Try splitting the xattr_name into a namespace and name part.
930 * The splitting character is a .
932 attrnamespace = current_xattr->name;
933 if ((attrname = strchr(attrnamespace, '.')) == (char *)NULL) {
934 Mmsg2(jcr->errmsg, _("Failed to split %s into namespace and name part on file \"%s\"\n"),
935 current_xattr->name, jcr->last_fname);
936 Dmsg2(100, "Failed to split %s into namespace and name part on file \"%s\"\n",
937 current_xattr->name, jcr->last_fname);
943 * Make sure the attrnamespace makes sense.
945 if (extattr_string_to_namespace(attrnamespace, ¤t_attrnamespace) != 0) {
946 Mmsg2(jcr->errmsg, _("Failed to convert %s into namespace on file \"%s\"\n"),
947 attrnamespace, jcr->last_fname);
948 Dmsg2(100, "Failed to convert %s into namespace on file \"%s\"\n",
949 attrnamespace, jcr->last_fname);
954 * Try restoring the extended attribute.
956 cnt = extattr_set_link(jcr->last_fname, current_attrnamespace,
957 attrname, current_xattr->value, current_xattr->value_length);
958 if (cnt < 0 || cnt != current_xattr->value_length) {
964 Mmsg2(jcr->errmsg, _("extattr_set_link error on file \"%s\": ERR=%s\n"),
965 jcr->last_fname, be.bstrerror());
966 Dmsg2(100, "extattr_set_link error file=%s ERR=%s\n",
967 jcr->last_fname, be.bstrerror());
974 xattr_drop_internal_table(xattr_value_list);
975 return bxattr_exit_ok;
978 xattr_drop_internal_table(xattr_value_list);
979 return bxattr_exit_error;
983 * Function pointers to the build and parse function to use for these xattrs.
985 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = bsd_build_xattr_streams;
986 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = bsd_parse_xattr_streams;
988 #elif defined(HAVE_SUN_OS)
990 * Solaris extended attributes were introduced in Solaris 9
993 * Solaris extensible attributes were introduced in OpenSolaris
994 * by PSARC 2007/315 Solaris extensible attributes are also
995 * sometimes called extended system attributes.
997 * man fsattr(5) on Solaris gives a wealth of info. The most
998 * important bits are:
1000 * Attributes are logically supported as files within the file
1001 * system. The file system is therefore augmented with an
1002 * orthogonal name space of file attributes. Any file (includ-
1003 * ing attribute files) can have an arbitrarily deep attribute
1004 * tree associated with it. Attribute values are accessed by
1005 * file descriptors obtained through a special attribute inter-
1006 * face. This logical view of "attributes as files" allows the
1007 * leveraging of existing file system interface functionality
1008 * to support the construction, deletion, and manipulation of
1011 * The special files "." and ".." retain their accustomed
1012 * semantics within the attribute hierarchy. The "." attribute
1013 * file refers to the current directory and the ".." attribute
1014 * file refers to the parent directory. The unnamed directory
1015 * at the head of each attribute tree is considered the "child"
1016 * of the file it is associated with and the ".." file refers
1017 * to the associated file. For any non-directory file with
1018 * attributes, the ".." entry in the unnamed directory refers
1019 * to a file that is not a directory.
1021 * Conceptually, the attribute model is fully general. Extended
1022 * attributes can be any type of file (doors, links, direc-
1023 * tories, and so forth) and can even have their own attributes
1024 * (fully recursive). As a result, the attributes associated
1025 * with a file could be an arbitrarily deep directory hierarchy
1026 * where each attribute could have an equally complex attribute
1027 * tree associated with it. Not all implementations are able
1028 * to, or want to, support the full model. Implementation are
1029 * therefore permitted to reject operations that are not sup-
1030 * ported. For example, the implementation for the UFS file
1031 * system allows only regular files as attributes (for example,
1032 * no sub-directories) and rejects attempts to place attributes
1035 * The following list details the operations that are rejected
1036 * in the current implementation:
1038 * link Any attempt to create links between
1039 * attribute and non-attribute space
1040 * is rejected to prevent security-
1041 * related or otherwise sensitive
1042 * attributes from being exposed, and
1043 * therefore manipulable, as regular
1046 * rename Any attempt to rename between
1047 * attribute and non-attribute space
1048 * is rejected to prevent an already
1049 * linked file from being renamed and
1050 * thereby circumventing the link res-
1053 * mkdir, symlink, mknod Any attempt to create a "non-
1054 * regular" file in attribute space is
1055 * rejected to reduce the functional-
1056 * ity, and therefore exposure and
1057 * risk, of the initial implementa-
1060 * The entire available name space has been allocated to "gen-
1061 * eral use" to bring the implementation in line with the NFSv4
1062 * draft standard [NFSv4]. That standard defines "named attri-
1063 * butes" (equivalent to Solaris Extended Attributes) with no
1064 * naming restrictions. All Sun applications making use of
1065 * opaque extended attributes will use the prefix "SUNW".
1068 #ifdef HAVE_SYS_ATTR_H
1069 #include <sys/attr.h>
1076 #ifdef HAVE_SYS_NVPAIR_H
1077 #include <sys/nvpair.h>
1080 #ifdef HAVE_SYS_ACL_H
1081 #include <sys/acl.h>
1084 #if !defined(HAVE_OPENAT) || \
1085 !defined(HAVE_UNKINKAT) || \
1086 !defined(HAVE_FCHOWNAT) || \
1087 !defined(HAVE_FUTIMESAT)
1088 #error "Unable to compile code because of missing openat, unlinkat, fchownat or futimesat function"
1092 * Define the supported XATTR streams for this OS
1094 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1095 static int os_default_xattr_streams[2] = { STREAM_XATTR_SOLARIS, STREAM_XATTR_SOLARIS_SYS};
1097 static int os_default_xattr_streams[1] = { STREAM_XATTR_SOLARIS };
1098 #endif /* defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED) */
1101 * This code creates a temporary cache with entries for each xattr which has
1102 * a link count > 1 (which indicates it has one or more hard linked counterpart(s))
1104 static xattr_link_cache_entry_t *find_xattr_link_cache_entry(JCR *jcr, ino_t inum)
1106 xattr_link_cache_entry_t *ptr;
1108 foreach_alist(ptr, jcr->xattr_data->link_cache) {
1109 if (ptr && ptr->inum == inum) {
1116 static void add_xattr_link_cache_entry(JCR *jcr, ino_t inum, char *target)
1118 xattr_link_cache_entry_t *ptr;
1120 ptr = (xattr_link_cache_entry_t *)malloc(sizeof(xattr_link_cache_entry_t));
1121 memset((caddr_t)ptr, 0, sizeof(xattr_link_cache_entry_t));
1123 bstrncpy(ptr->target, target, sizeof(ptr->target));
1124 jcr->xattr_data->link_cache->append(ptr);
1127 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1129 * This function returns true if a non default extended system attribute
1130 * list is associated with fd and returns false when an error has occured
1131 * or when only extended system attributes other than archive,
1132 * av_modified or crtime are set.
1134 * The function returns true for the following cases:
1136 * - any extended system attribute other than the default attributes
1137 * ('archive', 'av_modified' and 'crtime') is set
1138 * - nvlist has NULL name string
1139 * - nvpair has data type of 'nvlist'
1140 * - default data type.
1142 static bool solaris_has_non_transient_extensible_attributes(int fd)
1150 bool retval = false;
1152 if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
1157 while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
1158 name = nvpair_name(pair);
1161 fattr = name_to_attr(name);
1167 type = nvpair_type(pair);
1169 case DATA_TYPE_BOOLEAN_VALUE:
1170 if (nvpair_value_boolean_value(pair, &value) != 0) {
1173 if (value && fattr != F_ARCHIVE &&
1174 fattr != F_AV_MODIFIED) {
1179 case DATA_TYPE_UINT64_ARRAY:
1180 if (fattr != F_CRTIME) {
1185 case DATA_TYPE_NVLIST:
1193 if (response != NULL) {
1194 nvlist_free(response);
1198 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1200 #if defined(HAVE_ACL) && !defined(HAVE_EXTENDED_ACL)
1202 * See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
1203 * There is no need to store those acls as we already store the stat bits too.
1205 static bool acl_is_trivial(int count, aclent_t *entries)
1210 for (n = 0; n < count; n++) {
1212 if (!(ace->a_type == USER_OBJ ||
1213 ace->a_type == GROUP_OBJ ||
1214 ace->a_type == OTHER_OBJ ||
1215 ace->a_type == CLASS_OBJ))
1220 #endif /* HAVE_ACL && !HAVE_EXTENDED_ACL */
1222 static bxattr_exit_code solaris_save_xattr_acl(JCR *jcr, int fd, const char *attrname, char **acl_text)
1225 #ifdef HAVE_EXTENDED_ACL
1231 * See if this attribute has an ACL
1233 if ((fd != -1 && fpathconf(fd, _PC_ACL_ENABLED) > 0) ||
1234 pathconf(attrname, _PC_ACL_ENABLED) > 0) {
1236 * See if there is a non trivial acl on the file.
1238 if ((fd != -1 && facl_get(fd, ACL_NO_TRIVIAL, &aclp) != 0) ||
1239 acl_get(attrname, ACL_NO_TRIVIAL, &aclp) != 0) {
1242 return bxattr_exit_ok;
1244 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1245 attrname, jcr->last_fname, be.bstrerror());
1246 Dmsg3(100, "facl_get/acl_get of xattr %s on \"%s\" failed: ERR=%s\n",
1247 attrname, jcr->last_fname, be.bstrerror());
1248 return bxattr_exit_error;
1253 #if defined(ACL_SID_FMT)
1255 * New format flag added in newer Solaris versions.
1257 flags = ACL_APPEND_ID | ACL_COMPACT_FMT | ACL_SID_FMT;
1259 flags = ACL_APPEND_ID | ACL_COMPACT_FMT;
1260 #endif /* ACL_SID_FMT */
1262 *acl_text = acl_totext(aclp, flags);
1270 return bxattr_exit_ok;
1271 #else /* HAVE_EXTENDED_ACL */
1273 aclent_t *acls = NULL;
1277 * See if this attribute has an ACL
1280 n = facl(fd, GETACLCNT, 0, NULL);
1282 n = acl(attrname, GETACLCNT, 0, NULL);
1285 if (n >= MIN_ACL_ENTRIES) {
1286 acls = (aclent_t *)malloc(n * sizeof(aclent_t));
1287 if ((fd != -1 && facl(fd, GETACL, n, acls) != n) ||
1288 acl(attrname, GETACL, n, acls) != n) {
1292 return bxattr_exit_ok;
1294 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1295 attrname, jcr->last_fname, be.bstrerror());
1296 Dmsg3(100, "facl/acl of xattr %s on \"%s\" failed: ERR=%s\n",
1297 attrname, jcr->last_fname, be.bstrerror());
1299 return bxattr_exit_error;
1304 * See if there is a non trivial acl on the file.
1306 if (!acl_is_trivial(n, acls)) {
1307 if ((*acl_text = acltotext(acls, n)) == NULL) {
1308 Mmsg3(jcr->errmsg, _("Unable to get acl text on xattr %s on file \"%s\": ERR=%s\n"),
1309 attrname, jcr->last_fname, be.bstrerror());
1310 Dmsg3(100, "acltotext of xattr %s on \"%s\" failed: ERR=%s\n",
1311 attrname, jcr->last_fname, be.bstrerror());
1313 return bxattr_exit_error;
1323 return bxattr_exit_ok;
1324 #endif /* HAVE_EXTENDED_ACL */
1326 #else /* HAVE_ACL */
1327 return bxattr_exit_ok;
1328 #endif /* HAVE_ACL */
1332 * Forward declaration for recursive function call.
1334 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent);
1337 * Save an extended or extensible attribute.
1338 * This is stored as an opaque stream of bytes with the following encoding:
1340 * <xattr_name>\0<stat_buffer>\0<acl_string>\0<actual_xattr_data>
1342 * or for a hardlinked or symlinked attribute
1344 * <xattr_name>\0<stat_buffer>\0<xattr_link_source>\0
1346 * xattr_name can be a subpath relative to the file the xattr is on.
1347 * stat_buffer is the string representation of the stat struct.
1348 * acl_string is an acl text when a non trivial acl is set on the xattr.
1349 * actual_xattr_data is the content of the xattr file.
1351 static bxattr_exit_code solaris_save_xattr(JCR *jcr, int fd, const char *xattr_namespace,
1352 const char *attrname, bool toplevel_hidden_dir, int stream)
1357 xattr_link_cache_entry_t *xlce;
1358 char target_attrname[PATH_MAX];
1359 char link_source[PATH_MAX];
1360 char *acl_text = NULL;
1361 char attribs[MAXSTRING];
1362 char buffer[BUFSIZ];
1363 bxattr_exit_code retval = bxattr_exit_error;
1366 bsnprintf(target_attrname, sizeof(target_attrname), "%s%s", xattr_namespace, attrname);
1369 * Get the stats of the extended or extensible attribute.
1371 if (fstatat(fd, attrname, &st, AT_SYMLINK_NOFOLLOW) < 0) {
1374 retval = bxattr_exit_ok;
1377 Mmsg3(jcr->errmsg, _("Unable to get status on xattr %s on file \"%s\": ERR=%s\n"),
1378 target_attrname, jcr->last_fname, be.bstrerror());
1379 Dmsg3(100, "fstatat of xattr %s on \"%s\" failed: ERR=%s\n",
1380 target_attrname, jcr->last_fname, be.bstrerror());
1386 * Based on the filetype perform the correct action. We support most filetypes here, more
1387 * then the actual implementation on Solaris supports so some code may never get executed
1388 * due to limitations in the implementation.
1390 switch (st.st_mode & S_IFMT) {
1395 * Get any acl on the xattr.
1397 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1401 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1402 * Encode the stat struct into an ASCII representation.
1404 encode_stat(attribs, &st, 0, stream);
1405 cnt = bsnprintf(buffer, sizeof(buffer), "%s%c%s%c%s%c",
1406 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1410 * Get any acl on the xattr.
1412 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1416 * See if this is the toplevel_hidden_dir being saved.
1418 if (toplevel_hidden_dir) {
1420 * Save the data for later storage when we encounter a real xattr. We store the data
1421 * in the jcr->xattr_data->content buffer and flush that just before sending out the
1422 * first real xattr. Encode the stat struct into an ASCII representation and jump
1423 * out of the function.
1425 encode_stat(attribs, &st, 0, stream);
1426 cnt = bsnprintf(buffer, sizeof(buffer),
1428 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1429 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1430 jcr->xattr_data->content_length = cnt;
1434 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1435 * Encode the stat struct into an ASCII representation.
1437 encode_stat(attribs, &st, 0, stream);
1438 cnt = bsnprintf(buffer, sizeof(buffer),
1440 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1445 * If this is a hardlinked file check the inode cache for a hit.
1447 if (st.st_nlink > 1) {
1449 * See if the cache already knows this inode number.
1451 if ((xlce = find_xattr_link_cache_entry(jcr, st.st_ino)) != NULL) {
1453 * Generate a xattr encoding with the reference to the target in there.
1455 encode_stat(attribs, &st, st.st_ino, stream);
1456 cnt = bsnprintf(buffer, sizeof(buffer),
1458 target_attrname, 0, attribs, 0, xlce->target, 0);
1459 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1460 jcr->xattr_data->content_length = cnt;
1461 retval = send_xattr_stream(jcr, stream);
1464 * For a hard linked file we are ready now, no need to recursively save the attributes.
1470 * Store this hard linked file in the cache.
1471 * Store the name relative to the top level xattr space.
1473 add_xattr_link_cache_entry(jcr, st.st_ino, target_attrname + 1);
1477 * Get any acl on the xattr.
1479 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok) {
1484 * Encode the stat struct into an ASCII representation.
1486 encode_stat(attribs, &st, 0, stream);
1487 cnt = bsnprintf(buffer, sizeof(buffer),
1489 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1492 * Open the extended or extensible attribute file.
1494 if ((attrfd = openat(fd, attrname, O_RDONLY)) < 0) {
1497 retval = bxattr_exit_ok;
1500 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on \"%s\": ERR=%s\n"),
1501 target_attrname, jcr->last_fname, be.bstrerror());
1502 Dmsg3(100, "openat of xattr %s on \"%s\" failed: ERR=%s\n",
1503 target_attrname, jcr->last_fname, be.bstrerror());
1510 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1511 * Encode the stat struct into an ASCII representation.
1513 if (readlink(attrname, link_source, sizeof(link_source)) < 0) {
1516 retval = bxattr_exit_ok;
1519 Mmsg3(jcr->errmsg, _("Unable to read symlin %s on \"%s\": ERR=%s\n"),
1520 target_attrname, jcr->last_fname, be.bstrerror());
1521 Dmsg3(100, "readlink of xattr %s on \"%s\" failed: ERR=%s\n",
1522 target_attrname, jcr->last_fname, be.bstrerror());
1528 * Generate a xattr encoding with the reference to the target in there.
1530 encode_stat(attribs, &st, st.st_ino, stream);
1531 cnt = bsnprintf(buffer, sizeof(buffer),
1533 target_attrname, 0, attribs, 0, link_source, 0);
1534 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1535 jcr->xattr_data->content_length = cnt;
1536 retval = send_xattr_stream(jcr, stream);
1538 if (retval == bxattr_exit_ok) {
1539 jcr->xattr_data->nr_saved++;
1543 * For a soft linked file we are ready now, no need to recursively save the attributes.
1551 * See if this is the first real xattr being saved.
1552 * If it is save the toplevel_hidden_dir attributes first.
1553 * This is easy as its stored already in the jcr->xattr_data->content buffer.
1555 if (jcr->xattr_data->nr_saved == 0) {
1556 retval = send_xattr_stream(jcr, STREAM_XATTR_SOLARIS);
1557 if (retval != bxattr_exit_ok) {
1560 jcr->xattr_data->nr_saved++;
1563 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1564 jcr->xattr_data->content_length = cnt;
1567 * Only dump the content of regular files.
1569 switch (st.st_mode & S_IFMT) {
1571 if (st.st_size > 0) {
1573 * Protect ourself against things getting out of hand.
1575 if (st.st_size >= MAX_XATTR_STREAM) {
1576 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
1577 jcr->last_fname, MAX_XATTR_STREAM);
1581 while ((cnt = read(attrfd, buffer, sizeof(buffer))) > 0) {
1582 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, jcr->xattr_data->content_length + cnt);
1583 memcpy(jcr->xattr_data->content + jcr->xattr_data->content_length, buffer, cnt);
1584 jcr->xattr_data->content_length += cnt;
1588 Mmsg2(jcr->errmsg, _("Unable to read content of xattr %s on file \"%s\"\n"),
1589 target_attrname, jcr->last_fname);
1590 Dmsg2(100, "read of data from xattr %s on \"%s\" failed\n",
1591 target_attrname, jcr->last_fname);
1602 retval = send_xattr_stream(jcr, stream);
1603 if (retval == bxattr_exit_ok) {
1604 jcr->xattr_data->nr_saved++;
1609 * Recursivly call solaris_save_extended_attributes for archiving the attributes
1610 * available on this extended attribute.
1613 retval = solaris_save_xattrs(jcr, xattr_namespace, attrname);
1616 * The recursive call could change our working dir so change back to the wanted workdir.
1618 if (fchdir(fd) < 0) {
1621 retval = bxattr_exit_ok;
1624 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space of file \"%s\": ERR=%s\n"),
1625 jcr->last_fname, be.bstrerror());
1626 Dmsg3(100, "Unable to fchdir to xattr space of file \"%s\" using fd %d: ERR=%s\n",
1627 jcr->last_fname, fd, be.bstrerror());
1643 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent)
1646 int fd, filefd = -1, attrdirfd = -1;
1649 char current_xattr_namespace[PATH_MAX];
1650 bxattr_exit_code retval = bxattr_exit_error;
1654 * Determine what argument to use. Use attr_parent when set
1655 * (recursive call) or jcr->last_fname for first call. Also save
1656 * the current depth of the xattr_space we are in.
1660 if (xattr_namespace) {
1661 bsnprintf(current_xattr_namespace, sizeof(current_xattr_namespace), "%s%s/",
1662 xattr_namespace, attr_parent);
1664 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1667 name = jcr->last_fname;
1668 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1672 * Open the file on which to save the xattrs read-only.
1674 if ((filefd = open(name, O_RDONLY | O_NONBLOCK)) < 0) {
1677 retval = bxattr_exit_ok;
1680 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1681 jcr->last_fname, be.bstrerror());
1682 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1683 jcr->last_fname, be.bstrerror());
1689 * Open the xattr naming space.
1691 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1695 * Gentile way of the system saying this type of xattr layering is not supported.
1696 * Which is not problem we just forget about this this xattr.
1697 * But as this is not an error we return a positive return value.
1699 retval = bxattr_exit_ok;
1702 retval = bxattr_exit_ok;
1705 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1706 name, jcr->last_fname, be.bstrerror());
1707 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1708 name, jcr->last_fname, be.bstrerror());
1714 * We need to change into the attribute directory to determine if each of the
1715 * attributes should be saved.
1717 if (fchdir(attrdirfd) < 0) {
1718 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1719 jcr->last_fname, be.bstrerror());
1720 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1721 jcr->last_fname, attrdirfd, be.bstrerror());
1726 * Save the data of the toplevel xattr hidden_dir. We save this one before anything
1727 * else because the readdir returns "." entry after the extensible attr entry.
1728 * And as we want this entry before anything else we better just save its data.
1731 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, ".",
1732 true, STREAM_XATTR_SOLARIS);
1734 if ((fd = dup(attrdirfd)) == -1 ||
1735 (dirp = fdopendir(fd)) == (DIR *)NULL) {
1736 Mmsg2(jcr->errmsg, _("Unable to list the xattr space on file \"%s\": ERR=%s\n"),
1737 jcr->last_fname, be.bstrerror());
1738 Dmsg3(100, "Unable to fdopendir xattr space on file \"%s\" using fd %d: ERR=%s\n",
1739 jcr->last_fname, fd, be.bstrerror());
1745 * Walk the namespace.
1747 while (dp = readdir(dirp)) {
1749 * Skip only the toplevel . dir.
1751 if (!attr_parent && bstrcmp(dp->d_name, "."))
1755 * Skip all .. directories
1757 if (bstrcmp(dp->d_name, ".."))
1760 Dmsg3(400, "processing extended attribute %s%s on file \"%s\"\n",
1761 current_xattr_namespace, dp->d_name, jcr->last_fname);
1763 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1765 * We are not interested in read-only extensible attributes.
1767 if (bstrcmp(dp->d_name, VIEW_READONLY)) {
1768 Dmsg3(400, "Skipping readonly extensible attributes %s%s on file \"%s\"\n",
1769 current_xattr_namespace, dp->d_name, jcr->last_fname);
1775 * We are only interested in read-write extensible attributes
1776 * when they contain non-transient values.
1778 if (bstrcmp(dp->d_name, VIEW_READWRITE)) {
1780 * Determine if there are non-transient system attributes at the toplevel.
1781 * We need to provide a fd to the open file.
1783 if (!solaris_has_non_transient_extensible_attributes(filefd)) {
1784 Dmsg3(400, "Skipping transient extensible attributes %s%s on file \"%s\"\n",
1785 current_xattr_namespace, dp->d_name, jcr->last_fname);
1792 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1793 false, STREAM_XATTR_SOLARIS_SYS);
1796 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1801 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1802 false, STREAM_XATTR_SOLARIS);
1806 retval = bxattr_exit_ok;
1809 if (attrdirfd != -1)
1817 static bxattr_exit_code solaris_restore_xattr_acl(JCR *jcr, int fd, const char *attrname, char *acl_text)
1819 #ifdef HAVE_EXTENDED_ACL
1824 if ((error = acl_fromtext(acl_text, &aclp)) != 0) {
1825 Mmsg1(jcr->errmsg, _("Unable to convert acl from text on file \"%s\"\n"),
1827 return bxattr_exit_error;
1830 if ((fd != -1 && facl_set(fd, aclp) != 0) ||
1831 acl_set(attrname, aclp) != 0) {
1832 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1833 attrname, jcr->last_fname, be.bstrerror());
1834 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1835 attrname, jcr->last_fname, be.bstrerror());
1836 return bxattr_exit_error;
1842 return bxattr_exit_ok;
1844 #else /* HAVE_EXTENDED_ACL */
1846 aclent_t *acls = NULL;
1849 acls = aclfromtext(acl_text, &n);
1851 if ((fd != -1 && facl(fd, SETACL, n, acls) != 0) ||
1852 acl(attrname, SETACL, n, acls) != 0) {
1853 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1854 attrname, jcr->last_fname, be.bstrerror());
1855 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1856 attrname, jcr->last_fname, be.bstrerror());
1857 return bxattr_exit_error;
1864 return bxattr_exit_ok;
1866 #endif /* HAVE_EXTENDED_ACL */
1869 #endif /* HAVE_ACL */
1871 static bxattr_exit_code solaris_restore_xattrs(JCR *jcr, bool is_extensible)
1873 int fd, filefd = -1, attrdirfd = -1, attrfd = -1;
1874 int used_bytes, total_bytes, cnt;
1875 char *bp, *target_attrname, *attribs;
1876 char *linked_target = NULL;
1877 char *acl_text = NULL;
1881 struct timeval times[2];
1882 bxattr_exit_code retval = bxattr_exit_error;
1886 * Parse the xattr stream. First the part that is the same for all xattrs.
1889 total_bytes = jcr->xattr_data->content_length;
1892 * The name of the target xattr has a leading / we are not interested
1893 * in that so skip it when decoding the string. We always start a the /
1894 * of the xattr space anyway.
1896 target_attrname = jcr->xattr_data->content + 1;
1897 if ((bp = strchr(target_attrname, '\0')) == (char *)NULL ||
1898 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1904 * Open the file on which to restore the xattrs read-only.
1906 if ((filefd = open(jcr->last_fname, O_RDONLY | O_NONBLOCK)) < 0) {
1907 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1908 jcr->last_fname, be.bstrerror());
1909 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1910 jcr->last_fname, be.bstrerror());
1915 * Open the xattr naming space and make it the current working dir.
1917 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1918 Mmsg2(jcr->errmsg, _("Unable to open xattr space on file \"%s\": ERR=%s\n"),
1919 jcr->last_fname, be.bstrerror());
1920 Dmsg2(100, "Unable to open xattr space on file \"%s\": ERR=%s\n",
1921 jcr->last_fname, be.bstrerror());
1925 if (fchdir(attrdirfd) < 0) {
1926 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1927 jcr->last_fname, be.bstrerror());
1928 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1929 jcr->last_fname, attrdirfd, be.bstrerror());
1934 * Try to open the correct xattr subdir based on the target_attrname given.
1935 * e.g. check if its a subdir attrname. Each / in the string makes us go
1938 while ((bp = strchr(target_attrname, '/')) != (char *)NULL) {
1941 if ((fd = open(target_attrname, O_RDONLY | O_NONBLOCK)) < 0) {
1942 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1943 target_attrname, jcr->last_fname, be.bstrerror());
1944 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1945 target_attrname, jcr->last_fname, be.bstrerror());
1953 * Open the xattr naming space.
1955 if ((fd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1956 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1957 target_attrname, jcr->last_fname, be.bstrerror());
1958 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1959 target_attrname, jcr->last_fname, be.bstrerror());
1967 * Make the xattr space our current workingdir.
1969 if (fchdir(attrdirfd) < 0) {
1970 Mmsg3(jcr->errmsg, _("Unable to chdir to xattr space %s on file \"%s\": ERR=%s\n"),
1971 target_attrname, jcr->last_fname, be.bstrerror());
1972 Dmsg4(100, "Unable to fchdir to xattr space %s on file \"%s\" using fd %d: ERR=%s\n",
1973 target_attrname, jcr->last_fname, attrdirfd, be.bstrerror());
1977 target_attrname = ++bp;
1981 * Decode the attributes from the stream.
1983 decode_stat(attribs, &st, &inum);
1986 * Decode the next field (acl_text).
1988 if ((bp = strchr(attribs, '\0')) == (char *)NULL ||
1989 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1995 * Based on the filetype perform the correct action. We support most filetypes here, more
1996 * then the actual implementation on Solaris supports so some code may never get executed
1997 * due to limitations in the implementation.
1999 switch (st.st_mode & S_IFMT) {
2002 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2004 unlinkat(attrdirfd, target_attrname, 0);
2005 if (mkfifo(target_attrname, st.st_mode) < 0) {
2006 Mmsg3(jcr->errmsg, _("Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n"),
2007 target_attrname, jcr->last_fname, be.bstrerror());
2008 Dmsg3(100, "Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n",
2009 target_attrname, jcr->last_fname, be.bstrerror());
2016 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2018 unlinkat(attrdirfd, target_attrname, 0);
2019 if (mknod(target_attrname, st.st_mode, st.st_rdev) < 0) {
2020 Mmsg3(jcr->errmsg, _("Unable to mknod xattr %s on file \"%s\": ERR=%s\n"),
2021 target_attrname, jcr->last_fname, be.bstrerror());
2022 Dmsg3(100, "Unable to mknod xattr %s on file \"%s\": ERR=%s\n",
2023 target_attrname, jcr->last_fname, be.bstrerror());
2029 * If its not the hidden_dir create the entry.
2030 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2032 if (!bstrcmp(target_attrname, ".")) {
2033 unlinkat(attrdirfd, target_attrname, AT_REMOVEDIR);
2034 if (mkdir(target_attrname, st.st_mode) < 0) {
2035 Jmsg3(jcr, M_WARNING, 0, _("Unable to mkdir xattr %s on file \"%s\": ERR=%s\n"),
2036 target_attrname, jcr->last_fname, be.bstrerror());
2037 Dmsg3(100, "Unable to mkdir xattr %s on file \"%s\": ERR=%s\n",
2038 target_attrname, jcr->last_fname, be.bstrerror());
2045 * See if this is a hard linked file. e.g. inum != 0
2050 unlinkat(attrdirfd, target_attrname, 0);
2051 if (link(linked_target, target_attrname) < 0) {
2052 Mmsg4(jcr->errmsg, _("Unable to link xattr %s to %s on file \"%s\": ERR=%s\n"),
2053 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2054 Dmsg4(100, "Unable to link xattr %s to %s on file \"%s\": ERR=%s\n",
2055 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2060 * Successfully restored xattr.
2062 retval = bxattr_exit_ok;
2065 if ((bp = strchr(acl_text, '\0')) == (char *)NULL ||
2066 (used_bytes = (bp - jcr->xattr_data->content)) >= total_bytes) {
2070 if (used_bytes < (total_bytes - 1))
2074 * Restore the actual xattr.
2076 if (!is_extensible) {
2077 unlinkat(attrdirfd, target_attrname, 0);
2080 if ((attrfd = openat(attrdirfd, target_attrname, O_RDWR | O_CREAT | O_TRUNC, st.st_mode)) < 0) {
2081 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
2082 target_attrname, jcr->last_fname, be.bstrerror());
2083 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
2084 target_attrname, jcr->last_fname, be.bstrerror());
2090 * Restore the actual data.
2092 if (st.st_size > 0) {
2093 used_bytes = (data - jcr->xattr_data->content);
2094 cnt = total_bytes - used_bytes;
2097 * Do a sanity check, the st.st_size should be the same as the number of bytes
2098 * we have available as data of the stream.
2100 if (cnt != st.st_size) {
2101 Mmsg2(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n"),
2102 target_attrname, jcr->last_fname);
2103 Dmsg2(100, "Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n",
2104 target_attrname, jcr->last_fname);
2109 cnt = write(attrfd, data, cnt);
2111 Mmsg3(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": ERR=%s\n"),
2112 target_attrname, jcr->last_fname, be.bstrerror());
2113 Dmsg3(100, "Unable to restore data of xattr %s on file \"%s\": ERR=%s\n",
2114 target_attrname, jcr->last_fname, be.bstrerror());
2120 cnt = total_bytes - used_bytes;
2126 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2130 if (symlink(linked_target, target_attrname) < 0) {
2131 Mmsg4(jcr->errmsg, _("Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n"),
2132 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2133 Dmsg4(100, "Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n",
2134 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2139 * Successfully restored xattr.
2141 retval = bxattr_exit_ok;
2148 * Restore owner and acl for non extensible attributes.
2150 if (!is_extensible) {
2151 if (fchownat(attrdirfd, target_attrname, st.st_uid, st.st_gid, AT_SYMLINK_NOFOLLOW) < 0) {
2155 * Gentile way of the system saying this type of xattr layering is not supported.
2156 * But as this is not an error we return a positive return value.
2158 retval = bxattr_exit_ok;
2161 retval = bxattr_exit_ok;
2164 Mmsg3(jcr->errmsg, _("Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n"),
2165 target_attrname, jcr->last_fname, be.bstrerror());
2166 Dmsg3(100, "Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n",
2167 target_attrname, jcr->last_fname, be.bstrerror());
2174 if (acl_text && *acl_text)
2175 if (solaris_restore_xattr_acl(jcr, attrfd, target_attrname, acl_text) != bxattr_exit_ok)
2177 #endif /* HAVE_ACL */
2180 * For a non extensible attribute restore access and modification time on the xattr.
2182 if (!is_extensible) {
2183 times[0].tv_sec = st.st_atime;
2184 times[0].tv_usec = 0;
2185 times[1].tv_sec = st.st_mtime;
2186 times[1].tv_usec = 0;
2188 if (futimesat(attrdirfd, target_attrname, times) < 0) {
2189 Mmsg3(jcr->errmsg, _("Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n"),
2190 target_attrname, jcr->last_fname, be.bstrerror());
2191 Dmsg3(100, "Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n",
2192 target_attrname, jcr->last_fname, be.bstrerror());
2198 * Successfully restored xattr.
2200 retval = bxattr_exit_ok;
2204 Mmsg1(jcr->errmsg, _("Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n"),
2206 Dmsg1(100, "Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n",
2213 if (attrdirfd != -1) {
2222 static bxattr_exit_code solaris_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2225 bxattr_exit_code retval = bxattr_exit_ok;
2228 * First see if extended attributes or extensible attributes are present.
2229 * If not just pretend things went ok.
2231 if (pathconf(jcr->last_fname, _PC_XATTR_EXISTS) > 0) {
2232 jcr->xattr_data->nr_saved = 0;
2233 jcr->xattr_data->link_cache = New(alist(10, not_owned_by_alist));
2236 * As we change the cwd in the save function save the current cwd
2237 * for restore after return from the solaris_save_xattrs function.
2239 getcwd(cwd, sizeof(cwd));
2240 retval = solaris_save_xattrs(jcr, NULL, NULL);
2242 delete jcr->xattr_data->link_cache;
2243 jcr->xattr_data->link_cache = NULL;
2248 static bxattr_exit_code solaris_parse_xattr_streams(JCR *jcr, int stream)
2251 bool is_extensible = false;
2252 bxattr_exit_code retval;
2255 * First make sure we can restore xattr on the filesystem.
2258 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
2259 case STREAM_XATTR_SOLARIS_SYS:
2260 if (pathconf(jcr->last_fname, _PC_SATTR_ENABLED) <= 0) {
2261 Mmsg1(jcr->errmsg, _("Failed to restore extensible attributes on file \"%s\"\n"), jcr->last_fname);
2262 Dmsg1(100, "Unable to restore extensible attributes on file \"%s\", filesystem doesn't support this\n",
2264 return bxattr_exit_error;
2267 is_extensible = true;
2270 case STREAM_XATTR_SOLARIS:
2271 if (pathconf(jcr->last_fname, _PC_XATTR_ENABLED) <= 0) {
2272 Mmsg1(jcr->errmsg, _("Failed to restore extended attributes on file \"%s\"\n"), jcr->last_fname);
2273 Dmsg1(100, "Unable to restore extended attributes on file \"%s\", filesystem doesn't support this\n",
2275 return bxattr_exit_error;
2279 return bxattr_exit_error;
2283 * As we change the cwd in the restore function save the current cwd
2284 * for restore after return from the solaris_restore_xattrs function.
2286 getcwd(cwd, sizeof(cwd));
2287 retval = solaris_restore_xattrs(jcr, is_extensible);
2294 * Function pointers to the build and parse function to use for these xattrs.
2296 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = solaris_build_xattr_streams;
2297 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = solaris_parse_xattr_streams;
2299 #endif /* defined(HAVE_SUN_OS) */
2302 * Entry points when compiled with support for XATTRs on a supported platform.
2304 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2306 if (os_build_xattr_streams) {
2307 return (*os_build_xattr_streams)(jcr, ff_pkt);
2309 return bxattr_exit_error;
2312 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
2316 if (os_parse_xattr_streams) {
2318 * See if we can parse this stream, and ifso give it a try.
2320 for (cnt = 0; cnt < sizeof(os_default_xattr_streams) / sizeof(int); cnt++) {
2321 if (os_default_xattr_streams[cnt] == stream) {
2322 return (*os_parse_xattr_streams)(jcr, stream);
2327 * Issue a warning and discard the message. But pretend the restore was ok.
2329 Jmsg2(jcr, M_WARNING, 0,
2330 _("Can't restore Extended Attributes of %s - incompatible xattr stream encountered - %d\n"),
2331 jcr->last_fname, stream);
2332 return bxattr_exit_error;