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 cnt = MIN((sizeof(current_attrname) - 1), xattr_list[index]);
735 strncpy(current_attrname, xattr_list + (index + 1), cnt);
736 current_attrname[cnt] = '\0';
739 * First make a xattr tuple of the current namespace and the name of the xattr.
740 * e.g. something like user.<attrname> or system.<attrname>
742 bsnprintf(current_attrtuple, sizeof(current_attrtuple), "%s.%s", current_attrnamespace, current_attrname);
745 * On some OSes you also get the acls in the extented attribute list.
746 * So we check if we are already backing up acls and if we do we
747 * don't store the extended attribute with the same info.
749 if (ff_pkt->flags & FO_ACL) {
750 for (cnt = 0; xattr_acl_skiplist[cnt] != NULL; cnt++) {
751 if (bstrcmp(current_attrtuple, xattr_acl_skiplist[cnt])) {
759 * On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
762 for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
763 if (bstrcmp(current_attrtuple, xattr_skiplist[cnt])) {
775 * Each xattr valuepair starts with a magic so we can parse it easier.
777 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
778 current_xattr->magic = XATTR_MAGIC;
779 expected_serialize_len += sizeof(current_xattr->magic);
782 * Allocate space for storing the name.
784 current_xattr->name_length = strlen(current_attrtuple);
785 current_xattr->name = (char *)malloc(current_xattr->name_length);
786 memcpy((caddr_t)current_xattr->name, (caddr_t)current_attrtuple, current_xattr->name_length);
788 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
791 * First see how long the value is for the extended attribute.
793 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, NULL, 0);
794 if (xattr_value_len < 0) {
797 retval = bxattr_exit_ok;
798 free(current_xattr->name);
802 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
803 jcr->last_fname, be.bstrerror());
804 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
805 jcr->last_fname, be.bstrerror());
806 free(current_xattr->name);
813 * Allocate space for storing the value.
815 current_xattr->value = (char *)malloc(xattr_value_len);
816 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
818 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, current_xattr->value, xattr_value_len);
819 if (xattr_value_len < 0) {
822 retval = bxattr_exit_ok;
823 free(current_xattr->value);
824 free(current_xattr->name);
828 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
829 jcr->last_fname, be.bstrerror());
830 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
831 jcr->last_fname, be.bstrerror());
832 free(current_xattr->value);
833 free(current_xattr->name);
840 * Store the actual length of the value.
842 current_xattr->value_length = xattr_value_len;
843 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
846 * Protect ourself against things getting out of hand.
848 if (expected_serialize_len >= MAX_XATTR_STREAM) {
849 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
850 jcr->last_fname, MAX_XATTR_STREAM);
851 free(current_xattr->value);
852 free(current_xattr->name);
857 xattr_value_list->append(current_xattr);
860 free(current_attrnamespace);
861 current_attrnamespace = (char *)NULL;
865 * We are done with this xattr list.
868 xattr_list = (char *)NULL;
872 * If we found any xattr send them to the SD.
874 if (xattr_count > 0) {
876 * Serialize the datastream.
878 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
879 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
881 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
886 xattr_drop_internal_table(xattr_value_list);
887 xattr_value_list = NULL;
890 * Send the datastream to the SD.
892 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
894 xattr_drop_internal_table(xattr_value_list);
895 xattr_value_list = NULL;
897 return bxattr_exit_ok;
901 if (current_attrnamespace) {
902 free(current_attrnamespace);
907 if (xattr_value_list) {
908 xattr_drop_internal_table(xattr_value_list);
909 xattr_value_list = NULL;
914 static bxattr_exit_code bsd_parse_xattr_streams(JCR *jcr, int stream)
916 xattr_t *current_xattr;
917 alist *xattr_value_list;
918 int current_attrnamespace, cnt;
919 char *attrnamespace, *attrname;
922 xattr_value_list = New(alist(10, not_owned_by_alist));
924 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
925 xattr_drop_internal_table(xattr_value_list);
926 return bxattr_exit_error;
929 foreach_alist(current_xattr, xattr_value_list) {
931 * Try splitting the xattr_name into a namespace and name part.
932 * The splitting character is a .
934 attrnamespace = current_xattr->name;
935 if ((attrname = strchr(attrnamespace, '.')) == (char *)NULL) {
936 Mmsg2(jcr->errmsg, _("Failed to split %s into namespace and name part on file \"%s\"\n"),
937 current_xattr->name, jcr->last_fname);
938 Dmsg2(100, "Failed to split %s into namespace and name part on file \"%s\"\n",
939 current_xattr->name, jcr->last_fname);
945 * Make sure the attrnamespace makes sense.
947 if (extattr_string_to_namespace(attrnamespace, ¤t_attrnamespace) != 0) {
948 Mmsg2(jcr->errmsg, _("Failed to convert %s into namespace on file \"%s\"\n"),
949 attrnamespace, jcr->last_fname);
950 Dmsg2(100, "Failed to convert %s into namespace on file \"%s\"\n",
951 attrnamespace, jcr->last_fname);
956 * Try restoring the extended attribute.
958 cnt = extattr_set_link(jcr->last_fname, current_attrnamespace,
959 attrname, current_xattr->value, current_xattr->value_length);
960 if (cnt < 0 || cnt != current_xattr->value_length) {
966 Mmsg2(jcr->errmsg, _("extattr_set_link error on file \"%s\": ERR=%s\n"),
967 jcr->last_fname, be.bstrerror());
968 Dmsg2(100, "extattr_set_link error file=%s ERR=%s\n",
969 jcr->last_fname, be.bstrerror());
976 xattr_drop_internal_table(xattr_value_list);
977 return bxattr_exit_ok;
980 xattr_drop_internal_table(xattr_value_list);
981 return bxattr_exit_error;
985 * Function pointers to the build and parse function to use for these xattrs.
987 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = bsd_build_xattr_streams;
988 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = bsd_parse_xattr_streams;
990 #elif defined(HAVE_SUN_OS)
992 * Solaris extended attributes were introduced in Solaris 9
995 * Solaris extensible attributes were introduced in OpenSolaris
996 * by PSARC 2007/315 Solaris extensible attributes are also
997 * sometimes called extended system attributes.
999 * man fsattr(5) on Solaris gives a wealth of info. The most
1000 * important bits are:
1002 * Attributes are logically supported as files within the file
1003 * system. The file system is therefore augmented with an
1004 * orthogonal name space of file attributes. Any file (includ-
1005 * ing attribute files) can have an arbitrarily deep attribute
1006 * tree associated with it. Attribute values are accessed by
1007 * file descriptors obtained through a special attribute inter-
1008 * face. This logical view of "attributes as files" allows the
1009 * leveraging of existing file system interface functionality
1010 * to support the construction, deletion, and manipulation of
1013 * The special files "." and ".." retain their accustomed
1014 * semantics within the attribute hierarchy. The "." attribute
1015 * file refers to the current directory and the ".." attribute
1016 * file refers to the parent directory. The unnamed directory
1017 * at the head of each attribute tree is considered the "child"
1018 * of the file it is associated with and the ".." file refers
1019 * to the associated file. For any non-directory file with
1020 * attributes, the ".." entry in the unnamed directory refers
1021 * to a file that is not a directory.
1023 * Conceptually, the attribute model is fully general. Extended
1024 * attributes can be any type of file (doors, links, direc-
1025 * tories, and so forth) and can even have their own attributes
1026 * (fully recursive). As a result, the attributes associated
1027 * with a file could be an arbitrarily deep directory hierarchy
1028 * where each attribute could have an equally complex attribute
1029 * tree associated with it. Not all implementations are able
1030 * to, or want to, support the full model. Implementation are
1031 * therefore permitted to reject operations that are not sup-
1032 * ported. For example, the implementation for the UFS file
1033 * system allows only regular files as attributes (for example,
1034 * no sub-directories) and rejects attempts to place attributes
1037 * The following list details the operations that are rejected
1038 * in the current implementation:
1040 * link Any attempt to create links between
1041 * attribute and non-attribute space
1042 * is rejected to prevent security-
1043 * related or otherwise sensitive
1044 * attributes from being exposed, and
1045 * therefore manipulable, as regular
1048 * rename Any attempt to rename between
1049 * attribute and non-attribute space
1050 * is rejected to prevent an already
1051 * linked file from being renamed and
1052 * thereby circumventing the link res-
1055 * mkdir, symlink, mknod Any attempt to create a "non-
1056 * regular" file in attribute space is
1057 * rejected to reduce the functional-
1058 * ity, and therefore exposure and
1059 * risk, of the initial implementa-
1062 * The entire available name space has been allocated to "gen-
1063 * eral use" to bring the implementation in line with the NFSv4
1064 * draft standard [NFSv4]. That standard defines "named attri-
1065 * butes" (equivalent to Solaris Extended Attributes) with no
1066 * naming restrictions. All Sun applications making use of
1067 * opaque extended attributes will use the prefix "SUNW".
1070 #ifdef HAVE_SYS_ATTR_H
1071 #include <sys/attr.h>
1078 #ifdef HAVE_SYS_NVPAIR_H
1079 #include <sys/nvpair.h>
1082 #ifdef HAVE_SYS_ACL_H
1083 #include <sys/acl.h>
1086 #if !defined(HAVE_OPENAT) || \
1087 !defined(HAVE_UNKINKAT) || \
1088 !defined(HAVE_FCHOWNAT) || \
1089 !defined(HAVE_FUTIMESAT)
1090 #error "Unable to compile code because of missing openat, unlinkat, fchownat or futimesat function"
1094 * Define the supported XATTR streams for this OS
1096 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1097 static int os_default_xattr_streams[2] = { STREAM_XATTR_SOLARIS, STREAM_XATTR_SOLARIS_SYS};
1099 static int os_default_xattr_streams[1] = { STREAM_XATTR_SOLARIS };
1100 #endif /* defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED) */
1103 * This code creates a temporary cache with entries for each xattr which has
1104 * a link count > 1 (which indicates it has one or more hard linked counterpart(s))
1106 static xattr_link_cache_entry_t *find_xattr_link_cache_entry(JCR *jcr, ino_t inum)
1108 xattr_link_cache_entry_t *ptr;
1110 foreach_alist(ptr, jcr->xattr_data->link_cache) {
1111 if (ptr && ptr->inum == inum) {
1118 static void add_xattr_link_cache_entry(JCR *jcr, ino_t inum, char *target)
1120 xattr_link_cache_entry_t *ptr;
1122 ptr = (xattr_link_cache_entry_t *)malloc(sizeof(xattr_link_cache_entry_t));
1123 memset((caddr_t)ptr, 0, sizeof(xattr_link_cache_entry_t));
1125 bstrncpy(ptr->target, target, sizeof(ptr->target));
1126 jcr->xattr_data->link_cache->append(ptr);
1129 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1131 * This function returns true if a non default extended system attribute
1132 * list is associated with fd and returns false when an error has occured
1133 * or when only extended system attributes other than archive,
1134 * av_modified or crtime are set.
1136 * The function returns true for the following cases:
1138 * - any extended system attribute other than the default attributes
1139 * ('archive', 'av_modified' and 'crtime') is set
1140 * - nvlist has NULL name string
1141 * - nvpair has data type of 'nvlist'
1142 * - default data type.
1144 static bool solaris_has_non_transient_extensible_attributes(int fd)
1152 bool retval = false;
1154 if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
1159 while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
1160 name = nvpair_name(pair);
1163 fattr = name_to_attr(name);
1169 type = nvpair_type(pair);
1171 case DATA_TYPE_BOOLEAN_VALUE:
1172 if (nvpair_value_boolean_value(pair, &value) != 0) {
1175 if (value && fattr != F_ARCHIVE &&
1176 fattr != F_AV_MODIFIED) {
1181 case DATA_TYPE_UINT64_ARRAY:
1182 if (fattr != F_CRTIME) {
1187 case DATA_TYPE_NVLIST:
1195 if (response != NULL) {
1196 nvlist_free(response);
1200 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1202 #if defined(HAVE_ACL) && !defined(HAVE_EXTENDED_ACL)
1204 * See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
1205 * There is no need to store those acls as we already store the stat bits too.
1207 static bool acl_is_trivial(int count, aclent_t *entries)
1212 for (n = 0; n < count; n++) {
1214 if (!(ace->a_type == USER_OBJ ||
1215 ace->a_type == GROUP_OBJ ||
1216 ace->a_type == OTHER_OBJ ||
1217 ace->a_type == CLASS_OBJ))
1222 #endif /* HAVE_ACL && !HAVE_EXTENDED_ACL */
1224 static bxattr_exit_code solaris_save_xattr_acl(JCR *jcr, int fd, const char *attrname, char **acl_text)
1227 #ifdef HAVE_EXTENDED_ACL
1233 * See if this attribute has an ACL
1235 if ((fd != -1 && fpathconf(fd, _PC_ACL_ENABLED) > 0) ||
1236 pathconf(attrname, _PC_ACL_ENABLED) > 0) {
1238 * See if there is a non trivial acl on the file.
1240 if ((fd != -1 && facl_get(fd, ACL_NO_TRIVIAL, &aclp) != 0) ||
1241 acl_get(attrname, ACL_NO_TRIVIAL, &aclp) != 0) {
1244 return bxattr_exit_ok;
1246 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1247 attrname, jcr->last_fname, be.bstrerror());
1248 Dmsg3(100, "facl_get/acl_get of xattr %s on \"%s\" failed: ERR=%s\n",
1249 attrname, jcr->last_fname, be.bstrerror());
1250 return bxattr_exit_error;
1255 #if defined(ACL_SID_FMT)
1257 * New format flag added in newer Solaris versions.
1259 flags = ACL_APPEND_ID | ACL_COMPACT_FMT | ACL_SID_FMT;
1261 flags = ACL_APPEND_ID | ACL_COMPACT_FMT;
1262 #endif /* ACL_SID_FMT */
1264 *acl_text = acl_totext(aclp, flags);
1272 return bxattr_exit_ok;
1273 #else /* HAVE_EXTENDED_ACL */
1275 aclent_t *acls = NULL;
1279 * See if this attribute has an ACL
1282 n = facl(fd, GETACLCNT, 0, NULL);
1284 n = acl(attrname, GETACLCNT, 0, NULL);
1287 if (n >= MIN_ACL_ENTRIES) {
1288 acls = (aclent_t *)malloc(n * sizeof(aclent_t));
1289 if ((fd != -1 && facl(fd, GETACL, n, acls) != n) ||
1290 acl(attrname, GETACL, n, acls) != n) {
1294 return bxattr_exit_ok;
1296 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1297 attrname, jcr->last_fname, be.bstrerror());
1298 Dmsg3(100, "facl/acl of xattr %s on \"%s\" failed: ERR=%s\n",
1299 attrname, jcr->last_fname, be.bstrerror());
1301 return bxattr_exit_error;
1306 * See if there is a non trivial acl on the file.
1308 if (!acl_is_trivial(n, acls)) {
1309 if ((*acl_text = acltotext(acls, n)) == NULL) {
1310 Mmsg3(jcr->errmsg, _("Unable to get acl text on xattr %s on file \"%s\": ERR=%s\n"),
1311 attrname, jcr->last_fname, be.bstrerror());
1312 Dmsg3(100, "acltotext of xattr %s on \"%s\" failed: ERR=%s\n",
1313 attrname, jcr->last_fname, be.bstrerror());
1315 return bxattr_exit_error;
1325 return bxattr_exit_ok;
1326 #endif /* HAVE_EXTENDED_ACL */
1328 #else /* HAVE_ACL */
1329 return bxattr_exit_ok;
1330 #endif /* HAVE_ACL */
1334 * Forward declaration for recursive function call.
1336 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent);
1339 * Save an extended or extensible attribute.
1340 * This is stored as an opaque stream of bytes with the following encoding:
1342 * <xattr_name>\0<stat_buffer>\0<acl_string>\0<actual_xattr_data>
1344 * or for a hardlinked or symlinked attribute
1346 * <xattr_name>\0<stat_buffer>\0<xattr_link_source>\0
1348 * xattr_name can be a subpath relative to the file the xattr is on.
1349 * stat_buffer is the string representation of the stat struct.
1350 * acl_string is an acl text when a non trivial acl is set on the xattr.
1351 * actual_xattr_data is the content of the xattr file.
1353 static bxattr_exit_code solaris_save_xattr(JCR *jcr, int fd, const char *xattr_namespace,
1354 const char *attrname, bool toplevel_hidden_dir, int stream)
1359 xattr_link_cache_entry_t *xlce;
1360 char target_attrname[PATH_MAX];
1361 char link_source[PATH_MAX];
1362 char *acl_text = NULL;
1363 char attribs[MAXSTRING];
1364 char buffer[BUFSIZ];
1365 bxattr_exit_code retval = bxattr_exit_error;
1368 bsnprintf(target_attrname, sizeof(target_attrname), "%s%s", xattr_namespace, attrname);
1371 * Get the stats of the extended or extensible attribute.
1373 if (fstatat(fd, attrname, &st, AT_SYMLINK_NOFOLLOW) < 0) {
1376 retval = bxattr_exit_ok;
1379 Mmsg3(jcr->errmsg, _("Unable to get status on xattr %s on file \"%s\": ERR=%s\n"),
1380 target_attrname, jcr->last_fname, be.bstrerror());
1381 Dmsg3(100, "fstatat of xattr %s on \"%s\" failed: ERR=%s\n",
1382 target_attrname, jcr->last_fname, be.bstrerror());
1388 * Based on the filetype perform the correct action. We support most filetypes here, more
1389 * then the actual implementation on Solaris supports so some code may never get executed
1390 * due to limitations in the implementation.
1392 switch (st.st_mode & S_IFMT) {
1397 * Get any acl on the xattr.
1399 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1403 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1404 * Encode the stat struct into an ASCII representation.
1406 encode_stat(attribs, &st, 0, stream);
1407 cnt = bsnprintf(buffer, sizeof(buffer), "%s%c%s%c%s%c",
1408 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1412 * Get any acl on the xattr.
1414 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1418 * See if this is the toplevel_hidden_dir being saved.
1420 if (toplevel_hidden_dir) {
1422 * Save the data for later storage when we encounter a real xattr. We store the data
1423 * in the jcr->xattr_data->content buffer and flush that just before sending out the
1424 * first real xattr. Encode the stat struct into an ASCII representation and jump
1425 * out of the function.
1427 encode_stat(attribs, &st, 0, stream);
1428 cnt = bsnprintf(buffer, sizeof(buffer),
1430 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1431 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1432 jcr->xattr_data->content_length = cnt;
1436 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1437 * Encode the stat struct into an ASCII representation.
1439 encode_stat(attribs, &st, 0, stream);
1440 cnt = bsnprintf(buffer, sizeof(buffer),
1442 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1447 * If this is a hardlinked file check the inode cache for a hit.
1449 if (st.st_nlink > 1) {
1451 * See if the cache already knows this inode number.
1453 if ((xlce = find_xattr_link_cache_entry(jcr, st.st_ino)) != NULL) {
1455 * Generate a xattr encoding with the reference to the target in there.
1457 encode_stat(attribs, &st, st.st_ino, stream);
1458 cnt = bsnprintf(buffer, sizeof(buffer),
1460 target_attrname, 0, attribs, 0, xlce->target, 0);
1461 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1462 jcr->xattr_data->content_length = cnt;
1463 retval = send_xattr_stream(jcr, stream);
1466 * For a hard linked file we are ready now, no need to recursively save the attributes.
1472 * Store this hard linked file in the cache.
1473 * Store the name relative to the top level xattr space.
1475 add_xattr_link_cache_entry(jcr, st.st_ino, target_attrname + 1);
1479 * Get any acl on the xattr.
1481 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok) {
1486 * Encode the stat struct into an ASCII representation.
1488 encode_stat(attribs, &st, 0, stream);
1489 cnt = bsnprintf(buffer, sizeof(buffer),
1491 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1494 * Open the extended or extensible attribute file.
1496 if ((attrfd = openat(fd, attrname, O_RDONLY)) < 0) {
1499 retval = bxattr_exit_ok;
1502 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on \"%s\": ERR=%s\n"),
1503 target_attrname, jcr->last_fname, be.bstrerror());
1504 Dmsg3(100, "openat of xattr %s on \"%s\" failed: ERR=%s\n",
1505 target_attrname, jcr->last_fname, be.bstrerror());
1512 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1513 * Encode the stat struct into an ASCII representation.
1515 if (readlink(attrname, link_source, sizeof(link_source)) < 0) {
1518 retval = bxattr_exit_ok;
1521 Mmsg3(jcr->errmsg, _("Unable to read symlin %s on \"%s\": ERR=%s\n"),
1522 target_attrname, jcr->last_fname, be.bstrerror());
1523 Dmsg3(100, "readlink of xattr %s on \"%s\" failed: ERR=%s\n",
1524 target_attrname, jcr->last_fname, be.bstrerror());
1530 * Generate a xattr encoding with the reference to the target in there.
1532 encode_stat(attribs, &st, st.st_ino, stream);
1533 cnt = bsnprintf(buffer, sizeof(buffer),
1535 target_attrname, 0, attribs, 0, link_source, 0);
1536 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1537 jcr->xattr_data->content_length = cnt;
1538 retval = send_xattr_stream(jcr, stream);
1540 if (retval == bxattr_exit_ok) {
1541 jcr->xattr_data->nr_saved++;
1545 * For a soft linked file we are ready now, no need to recursively save the attributes.
1553 * See if this is the first real xattr being saved.
1554 * If it is save the toplevel_hidden_dir attributes first.
1555 * This is easy as its stored already in the jcr->xattr_data->content buffer.
1557 if (jcr->xattr_data->nr_saved == 0) {
1558 retval = send_xattr_stream(jcr, STREAM_XATTR_SOLARIS);
1559 if (retval != bxattr_exit_ok) {
1562 jcr->xattr_data->nr_saved++;
1565 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1566 jcr->xattr_data->content_length = cnt;
1569 * Only dump the content of regular files.
1571 switch (st.st_mode & S_IFMT) {
1573 if (st.st_size > 0) {
1575 * Protect ourself against things getting out of hand.
1577 if (st.st_size >= MAX_XATTR_STREAM) {
1578 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
1579 jcr->last_fname, MAX_XATTR_STREAM);
1583 while ((cnt = read(attrfd, buffer, sizeof(buffer))) > 0) {
1584 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, jcr->xattr_data->content_length + cnt);
1585 memcpy(jcr->xattr_data->content + jcr->xattr_data->content_length, buffer, cnt);
1586 jcr->xattr_data->content_length += cnt;
1590 Mmsg2(jcr->errmsg, _("Unable to read content of xattr %s on file \"%s\"\n"),
1591 target_attrname, jcr->last_fname);
1592 Dmsg2(100, "read of data from xattr %s on \"%s\" failed\n",
1593 target_attrname, jcr->last_fname);
1604 retval = send_xattr_stream(jcr, stream);
1605 if (retval == bxattr_exit_ok) {
1606 jcr->xattr_data->nr_saved++;
1611 * Recursivly call solaris_save_extended_attributes for archiving the attributes
1612 * available on this extended attribute.
1615 retval = solaris_save_xattrs(jcr, xattr_namespace, attrname);
1618 * The recursive call could change our working dir so change back to the wanted workdir.
1620 if (fchdir(fd) < 0) {
1623 retval = bxattr_exit_ok;
1626 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space of file \"%s\": ERR=%s\n"),
1627 jcr->last_fname, be.bstrerror());
1628 Dmsg3(100, "Unable to fchdir to xattr space of file \"%s\" using fd %d: ERR=%s\n",
1629 jcr->last_fname, fd, be.bstrerror());
1645 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent)
1648 int fd, filefd = -1, attrdirfd = -1;
1651 char current_xattr_namespace[PATH_MAX];
1652 bxattr_exit_code retval = bxattr_exit_error;
1656 * Determine what argument to use. Use attr_parent when set
1657 * (recursive call) or jcr->last_fname for first call. Also save
1658 * the current depth of the xattr_space we are in.
1662 if (xattr_namespace) {
1663 bsnprintf(current_xattr_namespace, sizeof(current_xattr_namespace), "%s%s/",
1664 xattr_namespace, attr_parent);
1666 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1669 name = jcr->last_fname;
1670 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1674 * Open the file on which to save the xattrs read-only.
1676 if ((filefd = open(name, O_RDONLY | O_NONBLOCK)) < 0) {
1679 retval = bxattr_exit_ok;
1682 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1683 jcr->last_fname, be.bstrerror());
1684 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1685 jcr->last_fname, be.bstrerror());
1691 * Open the xattr naming space.
1693 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1697 * Gentile way of the system saying this type of xattr layering is not supported.
1698 * Which is not problem we just forget about this this xattr.
1699 * But as this is not an error we return a positive return value.
1701 retval = bxattr_exit_ok;
1704 retval = bxattr_exit_ok;
1707 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1708 name, jcr->last_fname, be.bstrerror());
1709 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1710 name, jcr->last_fname, be.bstrerror());
1716 * We need to change into the attribute directory to determine if each of the
1717 * attributes should be saved.
1719 if (fchdir(attrdirfd) < 0) {
1720 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1721 jcr->last_fname, be.bstrerror());
1722 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1723 jcr->last_fname, attrdirfd, be.bstrerror());
1728 * Save the data of the toplevel xattr hidden_dir. We save this one before anything
1729 * else because the readdir returns "." entry after the extensible attr entry.
1730 * And as we want this entry before anything else we better just save its data.
1733 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, ".",
1734 true, STREAM_XATTR_SOLARIS);
1736 if ((fd = dup(attrdirfd)) == -1 ||
1737 (dirp = fdopendir(fd)) == (DIR *)NULL) {
1738 Mmsg2(jcr->errmsg, _("Unable to list the xattr space on file \"%s\": ERR=%s\n"),
1739 jcr->last_fname, be.bstrerror());
1740 Dmsg3(100, "Unable to fdopendir xattr space on file \"%s\" using fd %d: ERR=%s\n",
1741 jcr->last_fname, fd, be.bstrerror());
1747 * Walk the namespace.
1749 while (dp = readdir(dirp)) {
1751 * Skip only the toplevel . dir.
1753 if (!attr_parent && bstrcmp(dp->d_name, "."))
1757 * Skip all .. directories
1759 if (bstrcmp(dp->d_name, ".."))
1762 Dmsg3(400, "processing extended attribute %s%s on file \"%s\"\n",
1763 current_xattr_namespace, dp->d_name, jcr->last_fname);
1765 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1767 * We are not interested in read-only extensible attributes.
1769 if (bstrcmp(dp->d_name, VIEW_READONLY)) {
1770 Dmsg3(400, "Skipping readonly extensible attributes %s%s on file \"%s\"\n",
1771 current_xattr_namespace, dp->d_name, jcr->last_fname);
1777 * We are only interested in read-write extensible attributes
1778 * when they contain non-transient values.
1780 if (bstrcmp(dp->d_name, VIEW_READWRITE)) {
1782 * Determine if there are non-transient system attributes at the toplevel.
1783 * We need to provide a fd to the open file.
1785 if (!solaris_has_non_transient_extensible_attributes(filefd)) {
1786 Dmsg3(400, "Skipping transient extensible attributes %s%s on file \"%s\"\n",
1787 current_xattr_namespace, dp->d_name, jcr->last_fname);
1794 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1795 false, STREAM_XATTR_SOLARIS_SYS);
1798 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1803 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1804 false, STREAM_XATTR_SOLARIS);
1808 retval = bxattr_exit_ok;
1811 if (attrdirfd != -1)
1819 static bxattr_exit_code solaris_restore_xattr_acl(JCR *jcr, int fd, const char *attrname, char *acl_text)
1821 #ifdef HAVE_EXTENDED_ACL
1826 if ((error = acl_fromtext(acl_text, &aclp)) != 0) {
1827 Mmsg1(jcr->errmsg, _("Unable to convert acl from text on file \"%s\"\n"),
1829 return bxattr_exit_error;
1832 if ((fd != -1 && facl_set(fd, aclp) != 0) ||
1833 acl_set(attrname, aclp) != 0) {
1834 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1835 attrname, jcr->last_fname, be.bstrerror());
1836 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1837 attrname, jcr->last_fname, be.bstrerror());
1838 return bxattr_exit_error;
1844 return bxattr_exit_ok;
1846 #else /* HAVE_EXTENDED_ACL */
1848 aclent_t *acls = NULL;
1851 acls = aclfromtext(acl_text, &n);
1853 if ((fd != -1 && facl(fd, SETACL, n, acls) != 0) ||
1854 acl(attrname, SETACL, n, acls) != 0) {
1855 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1856 attrname, jcr->last_fname, be.bstrerror());
1857 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1858 attrname, jcr->last_fname, be.bstrerror());
1859 return bxattr_exit_error;
1866 return bxattr_exit_ok;
1868 #endif /* HAVE_EXTENDED_ACL */
1871 #endif /* HAVE_ACL */
1873 static bxattr_exit_code solaris_restore_xattrs(JCR *jcr, bool is_extensible)
1875 int fd, filefd = -1, attrdirfd = -1, attrfd = -1;
1876 int used_bytes, total_bytes, cnt;
1877 char *bp, *target_attrname, *attribs;
1878 char *linked_target = NULL;
1879 char *acl_text = NULL;
1883 struct timeval times[2];
1884 bxattr_exit_code retval = bxattr_exit_error;
1888 * Parse the xattr stream. First the part that is the same for all xattrs.
1891 total_bytes = jcr->xattr_data->content_length;
1894 * The name of the target xattr has a leading / we are not interested
1895 * in that so skip it when decoding the string. We always start a the /
1896 * of the xattr space anyway.
1898 target_attrname = jcr->xattr_data->content + 1;
1899 if ((bp = strchr(target_attrname, '\0')) == (char *)NULL ||
1900 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1906 * Open the file on which to restore the xattrs read-only.
1908 if ((filefd = open(jcr->last_fname, O_RDONLY | O_NONBLOCK)) < 0) {
1909 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1910 jcr->last_fname, be.bstrerror());
1911 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1912 jcr->last_fname, be.bstrerror());
1917 * Open the xattr naming space and make it the current working dir.
1919 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1920 Mmsg2(jcr->errmsg, _("Unable to open xattr space on file \"%s\": ERR=%s\n"),
1921 jcr->last_fname, be.bstrerror());
1922 Dmsg2(100, "Unable to open xattr space on file \"%s\": ERR=%s\n",
1923 jcr->last_fname, be.bstrerror());
1927 if (fchdir(attrdirfd) < 0) {
1928 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1929 jcr->last_fname, be.bstrerror());
1930 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1931 jcr->last_fname, attrdirfd, be.bstrerror());
1936 * Try to open the correct xattr subdir based on the target_attrname given.
1937 * e.g. check if its a subdir attrname. Each / in the string makes us go
1940 while ((bp = strchr(target_attrname, '/')) != (char *)NULL) {
1943 if ((fd = open(target_attrname, O_RDONLY | O_NONBLOCK)) < 0) {
1944 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1945 target_attrname, jcr->last_fname, be.bstrerror());
1946 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1947 target_attrname, jcr->last_fname, be.bstrerror());
1955 * Open the xattr naming space.
1957 if ((fd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1958 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1959 target_attrname, jcr->last_fname, be.bstrerror());
1960 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1961 target_attrname, jcr->last_fname, be.bstrerror());
1969 * Make the xattr space our current workingdir.
1971 if (fchdir(attrdirfd) < 0) {
1972 Mmsg3(jcr->errmsg, _("Unable to chdir to xattr space %s on file \"%s\": ERR=%s\n"),
1973 target_attrname, jcr->last_fname, be.bstrerror());
1974 Dmsg4(100, "Unable to fchdir to xattr space %s on file \"%s\" using fd %d: ERR=%s\n",
1975 target_attrname, jcr->last_fname, attrdirfd, be.bstrerror());
1979 target_attrname = ++bp;
1983 * Decode the attributes from the stream.
1985 decode_stat(attribs, &st, &inum);
1988 * Decode the next field (acl_text).
1990 if ((bp = strchr(attribs, '\0')) == (char *)NULL ||
1991 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1997 * Based on the filetype perform the correct action. We support most filetypes here, more
1998 * then the actual implementation on Solaris supports so some code may never get executed
1999 * due to limitations in the implementation.
2001 switch (st.st_mode & S_IFMT) {
2004 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2006 unlinkat(attrdirfd, target_attrname, 0);
2007 if (mkfifo(target_attrname, st.st_mode) < 0) {
2008 Mmsg3(jcr->errmsg, _("Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n"),
2009 target_attrname, jcr->last_fname, be.bstrerror());
2010 Dmsg3(100, "Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n",
2011 target_attrname, jcr->last_fname, be.bstrerror());
2018 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2020 unlinkat(attrdirfd, target_attrname, 0);
2021 if (mknod(target_attrname, st.st_mode, st.st_rdev) < 0) {
2022 Mmsg3(jcr->errmsg, _("Unable to mknod xattr %s on file \"%s\": ERR=%s\n"),
2023 target_attrname, jcr->last_fname, be.bstrerror());
2024 Dmsg3(100, "Unable to mknod xattr %s on file \"%s\": ERR=%s\n",
2025 target_attrname, jcr->last_fname, be.bstrerror());
2031 * If its not the hidden_dir create the entry.
2032 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2034 if (!bstrcmp(target_attrname, ".")) {
2035 unlinkat(attrdirfd, target_attrname, AT_REMOVEDIR);
2036 if (mkdir(target_attrname, st.st_mode) < 0) {
2037 Jmsg3(jcr, M_WARNING, 0, _("Unable to mkdir xattr %s on file \"%s\": ERR=%s\n"),
2038 target_attrname, jcr->last_fname, be.bstrerror());
2039 Dmsg3(100, "Unable to mkdir xattr %s on file \"%s\": ERR=%s\n",
2040 target_attrname, jcr->last_fname, be.bstrerror());
2047 * See if this is a hard linked file. e.g. inum != 0
2052 unlinkat(attrdirfd, target_attrname, 0);
2053 if (link(linked_target, target_attrname) < 0) {
2054 Mmsg4(jcr->errmsg, _("Unable to link xattr %s to %s on file \"%s\": ERR=%s\n"),
2055 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2056 Dmsg4(100, "Unable to link xattr %s to %s on file \"%s\": ERR=%s\n",
2057 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2062 * Successfully restored xattr.
2064 retval = bxattr_exit_ok;
2067 if ((bp = strchr(acl_text, '\0')) == (char *)NULL ||
2068 (used_bytes = (bp - jcr->xattr_data->content)) >= total_bytes) {
2072 if (used_bytes < (total_bytes - 1))
2076 * Restore the actual xattr.
2078 if (!is_extensible) {
2079 unlinkat(attrdirfd, target_attrname, 0);
2082 if ((attrfd = openat(attrdirfd, target_attrname, O_RDWR | O_CREAT | O_TRUNC, st.st_mode)) < 0) {
2083 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
2084 target_attrname, jcr->last_fname, be.bstrerror());
2085 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
2086 target_attrname, jcr->last_fname, be.bstrerror());
2092 * Restore the actual data.
2094 if (st.st_size > 0) {
2095 used_bytes = (data - jcr->xattr_data->content);
2096 cnt = total_bytes - used_bytes;
2099 * Do a sanity check, the st.st_size should be the same as the number of bytes
2100 * we have available as data of the stream.
2102 if (cnt != st.st_size) {
2103 Mmsg2(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n"),
2104 target_attrname, jcr->last_fname);
2105 Dmsg2(100, "Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n",
2106 target_attrname, jcr->last_fname);
2111 cnt = write(attrfd, data, cnt);
2113 Mmsg3(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": ERR=%s\n"),
2114 target_attrname, jcr->last_fname, be.bstrerror());
2115 Dmsg3(100, "Unable to restore data of xattr %s on file \"%s\": ERR=%s\n",
2116 target_attrname, jcr->last_fname, be.bstrerror());
2122 cnt = total_bytes - used_bytes;
2128 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2132 if (symlink(linked_target, target_attrname) < 0) {
2133 Mmsg4(jcr->errmsg, _("Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n"),
2134 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2135 Dmsg4(100, "Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n",
2136 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2141 * Successfully restored xattr.
2143 retval = bxattr_exit_ok;
2150 * Restore owner and acl for non extensible attributes.
2152 if (!is_extensible) {
2153 if (fchownat(attrdirfd, target_attrname, st.st_uid, st.st_gid, AT_SYMLINK_NOFOLLOW) < 0) {
2157 * Gentile way of the system saying this type of xattr layering is not supported.
2158 * But as this is not an error we return a positive return value.
2160 retval = bxattr_exit_ok;
2163 retval = bxattr_exit_ok;
2166 Mmsg3(jcr->errmsg, _("Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n"),
2167 target_attrname, jcr->last_fname, be.bstrerror());
2168 Dmsg3(100, "Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n",
2169 target_attrname, jcr->last_fname, be.bstrerror());
2176 if (acl_text && *acl_text)
2177 if (solaris_restore_xattr_acl(jcr, attrfd, target_attrname, acl_text) != bxattr_exit_ok)
2179 #endif /* HAVE_ACL */
2182 * For a non extensible attribute restore access and modification time on the xattr.
2184 if (!is_extensible) {
2185 times[0].tv_sec = st.st_atime;
2186 times[0].tv_usec = 0;
2187 times[1].tv_sec = st.st_mtime;
2188 times[1].tv_usec = 0;
2190 if (futimesat(attrdirfd, target_attrname, times) < 0) {
2191 Mmsg3(jcr->errmsg, _("Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n"),
2192 target_attrname, jcr->last_fname, be.bstrerror());
2193 Dmsg3(100, "Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n",
2194 target_attrname, jcr->last_fname, be.bstrerror());
2200 * Successfully restored xattr.
2202 retval = bxattr_exit_ok;
2206 Mmsg1(jcr->errmsg, _("Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n"),
2208 Dmsg1(100, "Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n",
2215 if (attrdirfd != -1) {
2224 static bxattr_exit_code solaris_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2227 bxattr_exit_code retval = bxattr_exit_ok;
2230 * First see if extended attributes or extensible attributes are present.
2231 * If not just pretend things went ok.
2233 if (pathconf(jcr->last_fname, _PC_XATTR_EXISTS) > 0) {
2234 jcr->xattr_data->nr_saved = 0;
2235 jcr->xattr_data->link_cache = New(alist(10, not_owned_by_alist));
2238 * As we change the cwd in the save function save the current cwd
2239 * for restore after return from the solaris_save_xattrs function.
2241 getcwd(cwd, sizeof(cwd));
2242 retval = solaris_save_xattrs(jcr, NULL, NULL);
2244 delete jcr->xattr_data->link_cache;
2245 jcr->xattr_data->link_cache = NULL;
2250 static bxattr_exit_code solaris_parse_xattr_streams(JCR *jcr, int stream)
2253 bool is_extensible = false;
2254 bxattr_exit_code retval;
2257 * First make sure we can restore xattr on the filesystem.
2260 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
2261 case STREAM_XATTR_SOLARIS_SYS:
2262 if (pathconf(jcr->last_fname, _PC_SATTR_ENABLED) <= 0) {
2263 Mmsg1(jcr->errmsg, _("Failed to restore extensible attributes on file \"%s\"\n"), jcr->last_fname);
2264 Dmsg1(100, "Unable to restore extensible attributes on file \"%s\", filesystem doesn't support this\n",
2266 return bxattr_exit_error;
2269 is_extensible = true;
2272 case STREAM_XATTR_SOLARIS:
2273 if (pathconf(jcr->last_fname, _PC_XATTR_ENABLED) <= 0) {
2274 Mmsg1(jcr->errmsg, _("Failed to restore extended attributes on file \"%s\"\n"), jcr->last_fname);
2275 Dmsg1(100, "Unable to restore extended attributes on file \"%s\", filesystem doesn't support this\n",
2277 return bxattr_exit_error;
2281 return bxattr_exit_error;
2285 * As we change the cwd in the restore function save the current cwd
2286 * for restore after return from the solaris_restore_xattrs function.
2288 getcwd(cwd, sizeof(cwd));
2289 retval = solaris_restore_xattrs(jcr, is_extensible);
2296 * Function pointers to the build and parse function to use for these xattrs.
2298 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = solaris_build_xattr_streams;
2299 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = solaris_parse_xattr_streams;
2301 #endif /* defined(HAVE_SUN_OS) */
2304 * Entry points when compiled with support for XATTRs on a supported platform.
2306 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2308 if (os_build_xattr_streams) {
2309 return (*os_build_xattr_streams)(jcr, ff_pkt);
2311 return bxattr_exit_error;
2314 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
2318 if (os_parse_xattr_streams) {
2320 * See if we can parse this stream, and ifso give it a try.
2322 for (cnt = 0; cnt < sizeof(os_default_xattr_streams) / sizeof(int); cnt++) {
2323 if (os_default_xattr_streams[cnt] == stream) {
2324 return (*os_parse_xattr_streams)(jcr, stream);
2329 * Issue a warning and discard the message. But pretend the restore was ok.
2331 Jmsg2(jcr, M_WARNING, 0,
2332 _("Can't restore Extended Attributes of %s - incompatible xattr stream encountered - %d\n"),
2333 jcr->last_fname, stream);
2334 return bxattr_exit_error;