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 bfree_and_null(current_attrnamespace);
864 * We are done with this xattr list.
867 xattr_list = (char *)NULL;
871 * If we found any xattr send them to the SD.
873 if (xattr_count > 0) {
875 * Serialize the datastream.
877 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
878 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
880 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
885 xattr_drop_internal_table(xattr_value_list);
886 xattr_value_list = NULL;
889 * Send the datastream to the SD.
891 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
893 xattr_drop_internal_table(xattr_value_list);
894 xattr_value_list = NULL;
896 return bxattr_exit_ok;
900 if (current_attrnamespace) {
901 free(current_attrnamespace);
906 if (xattr_value_list) {
907 xattr_drop_internal_table(xattr_value_list);
908 xattr_value_list = NULL;
913 static bxattr_exit_code bsd_parse_xattr_streams(JCR *jcr, int stream)
915 xattr_t *current_xattr;
916 alist *xattr_value_list;
917 int current_attrnamespace, cnt;
918 char *attrnamespace, *attrname;
921 xattr_value_list = New(alist(10, not_owned_by_alist));
923 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
924 xattr_drop_internal_table(xattr_value_list);
925 return bxattr_exit_error;
928 foreach_alist(current_xattr, xattr_value_list) {
930 * Try splitting the xattr_name into a namespace and name part.
931 * The splitting character is a .
933 attrnamespace = current_xattr->name;
934 if ((attrname = strchr(attrnamespace, '.')) == (char *)NULL) {
935 Mmsg2(jcr->errmsg, _("Failed to split %s into namespace and name part on file \"%s\"\n"),
936 current_xattr->name, jcr->last_fname);
937 Dmsg2(100, "Failed to split %s into namespace and name part on file \"%s\"\n",
938 current_xattr->name, jcr->last_fname);
944 * Make sure the attrnamespace makes sense.
946 if (extattr_string_to_namespace(attrnamespace, ¤t_attrnamespace) != 0) {
947 Mmsg2(jcr->errmsg, _("Failed to convert %s into namespace on file \"%s\"\n"),
948 attrnamespace, jcr->last_fname);
949 Dmsg2(100, "Failed to convert %s into namespace on file \"%s\"\n",
950 attrnamespace, jcr->last_fname);
955 * Try restoring the extended attribute.
957 cnt = extattr_set_link(jcr->last_fname, current_attrnamespace,
958 attrname, current_xattr->value, current_xattr->value_length);
959 if (cnt < 0 || cnt != current_xattr->value_length) {
965 Mmsg2(jcr->errmsg, _("extattr_set_link error on file \"%s\": ERR=%s\n"),
966 jcr->last_fname, be.bstrerror());
967 Dmsg2(100, "extattr_set_link error file=%s ERR=%s\n",
968 jcr->last_fname, be.bstrerror());
975 xattr_drop_internal_table(xattr_value_list);
976 return bxattr_exit_ok;
979 xattr_drop_internal_table(xattr_value_list);
980 return bxattr_exit_error;
984 * Function pointers to the build and parse function to use for these xattrs.
986 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = bsd_build_xattr_streams;
987 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = bsd_parse_xattr_streams;
989 #elif defined(HAVE_SUN_OS)
991 * Solaris extended attributes were introduced in Solaris 9
994 * Solaris extensible attributes were introduced in OpenSolaris
995 * by PSARC 2007/315 Solaris extensible attributes are also
996 * sometimes called extended system attributes.
998 * man fsattr(5) on Solaris gives a wealth of info. The most
999 * important bits are:
1001 * Attributes are logically supported as files within the file
1002 * system. The file system is therefore augmented with an
1003 * orthogonal name space of file attributes. Any file (includ-
1004 * ing attribute files) can have an arbitrarily deep attribute
1005 * tree associated with it. Attribute values are accessed by
1006 * file descriptors obtained through a special attribute inter-
1007 * face. This logical view of "attributes as files" allows the
1008 * leveraging of existing file system interface functionality
1009 * to support the construction, deletion, and manipulation of
1012 * The special files "." and ".." retain their accustomed
1013 * semantics within the attribute hierarchy. The "." attribute
1014 * file refers to the current directory and the ".." attribute
1015 * file refers to the parent directory. The unnamed directory
1016 * at the head of each attribute tree is considered the "child"
1017 * of the file it is associated with and the ".." file refers
1018 * to the associated file. For any non-directory file with
1019 * attributes, the ".." entry in the unnamed directory refers
1020 * to a file that is not a directory.
1022 * Conceptually, the attribute model is fully general. Extended
1023 * attributes can be any type of file (doors, links, direc-
1024 * tories, and so forth) and can even have their own attributes
1025 * (fully recursive). As a result, the attributes associated
1026 * with a file could be an arbitrarily deep directory hierarchy
1027 * where each attribute could have an equally complex attribute
1028 * tree associated with it. Not all implementations are able
1029 * to, or want to, support the full model. Implementation are
1030 * therefore permitted to reject operations that are not sup-
1031 * ported. For example, the implementation for the UFS file
1032 * system allows only regular files as attributes (for example,
1033 * no sub-directories) and rejects attempts to place attributes
1036 * The following list details the operations that are rejected
1037 * in the current implementation:
1039 * link Any attempt to create links between
1040 * attribute and non-attribute space
1041 * is rejected to prevent security-
1042 * related or otherwise sensitive
1043 * attributes from being exposed, and
1044 * therefore manipulable, as regular
1047 * rename Any attempt to rename between
1048 * attribute and non-attribute space
1049 * is rejected to prevent an already
1050 * linked file from being renamed and
1051 * thereby circumventing the link res-
1054 * mkdir, symlink, mknod Any attempt to create a "non-
1055 * regular" file in attribute space is
1056 * rejected to reduce the functional-
1057 * ity, and therefore exposure and
1058 * risk, of the initial implementa-
1061 * The entire available name space has been allocated to "gen-
1062 * eral use" to bring the implementation in line with the NFSv4
1063 * draft standard [NFSv4]. That standard defines "named attri-
1064 * butes" (equivalent to Solaris Extended Attributes) with no
1065 * naming restrictions. All Sun applications making use of
1066 * opaque extended attributes will use the prefix "SUNW".
1069 #ifdef HAVE_SYS_ATTR_H
1070 #include <sys/attr.h>
1077 #ifdef HAVE_SYS_NVPAIR_H
1078 #include <sys/nvpair.h>
1081 #ifdef HAVE_SYS_ACL_H
1082 #include <sys/acl.h>
1085 #if !defined(HAVE_OPENAT) || \
1086 !defined(HAVE_UNKINKAT) || \
1087 !defined(HAVE_FCHOWNAT) || \
1088 !defined(HAVE_FUTIMESAT)
1089 #error "Unable to compile code because of missing openat, unlinkat, fchownat or futimesat function"
1093 * Define the supported XATTR streams for this OS
1095 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1096 static int os_default_xattr_streams[2] = { STREAM_XATTR_SOLARIS, STREAM_XATTR_SOLARIS_SYS};
1098 static int os_default_xattr_streams[1] = { STREAM_XATTR_SOLARIS };
1099 #endif /* defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED) */
1102 * This code creates a temporary cache with entries for each xattr which has
1103 * a link count > 1 (which indicates it has one or more hard linked counterpart(s))
1105 static xattr_link_cache_entry_t *find_xattr_link_cache_entry(JCR *jcr, ino_t inum)
1107 xattr_link_cache_entry_t *ptr;
1109 foreach_alist(ptr, jcr->xattr_data->link_cache) {
1110 if (ptr && ptr->inum == inum) {
1117 static void add_xattr_link_cache_entry(JCR *jcr, ino_t inum, char *target)
1119 xattr_link_cache_entry_t *ptr;
1121 ptr = (xattr_link_cache_entry_t *)malloc(sizeof(xattr_link_cache_entry_t));
1122 memset((caddr_t)ptr, 0, sizeof(xattr_link_cache_entry_t));
1124 bstrncpy(ptr->target, target, sizeof(ptr->target));
1125 jcr->xattr_data->link_cache->append(ptr);
1128 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1130 * This function returns true if a non default extended system attribute
1131 * list is associated with fd and returns false when an error has occured
1132 * or when only extended system attributes other than archive,
1133 * av_modified or crtime are set.
1135 * The function returns true for the following cases:
1137 * - any extended system attribute other than the default attributes
1138 * ('archive', 'av_modified' and 'crtime') is set
1139 * - nvlist has NULL name string
1140 * - nvpair has data type of 'nvlist'
1141 * - default data type.
1143 static bool solaris_has_non_transient_extensible_attributes(int fd)
1151 bool retval = false;
1153 if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
1158 while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
1159 name = nvpair_name(pair);
1162 fattr = name_to_attr(name);
1168 type = nvpair_type(pair);
1170 case DATA_TYPE_BOOLEAN_VALUE:
1171 if (nvpair_value_boolean_value(pair, &value) != 0) {
1174 if (value && fattr != F_ARCHIVE &&
1175 fattr != F_AV_MODIFIED) {
1180 case DATA_TYPE_UINT64_ARRAY:
1181 if (fattr != F_CRTIME) {
1186 case DATA_TYPE_NVLIST:
1194 if (response != NULL) {
1195 nvlist_free(response);
1199 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1201 #if defined(HAVE_ACL) && !defined(HAVE_EXTENDED_ACL)
1203 * See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
1204 * There is no need to store those acls as we already store the stat bits too.
1206 static bool acl_is_trivial(int count, aclent_t *entries)
1211 for (n = 0; n < count; n++) {
1213 if (!(ace->a_type == USER_OBJ ||
1214 ace->a_type == GROUP_OBJ ||
1215 ace->a_type == OTHER_OBJ ||
1216 ace->a_type == CLASS_OBJ))
1221 #endif /* HAVE_ACL && !HAVE_EXTENDED_ACL */
1223 static bxattr_exit_code solaris_save_xattr_acl(JCR *jcr, int fd, const char *attrname, char **acl_text)
1226 #ifdef HAVE_EXTENDED_ACL
1232 * See if this attribute has an ACL
1234 if ((fd != -1 && fpathconf(fd, _PC_ACL_ENABLED) > 0) ||
1235 pathconf(attrname, _PC_ACL_ENABLED) > 0) {
1237 * See if there is a non trivial acl on the file.
1239 if ((fd != -1 && facl_get(fd, ACL_NO_TRIVIAL, &aclp) != 0) ||
1240 acl_get(attrname, ACL_NO_TRIVIAL, &aclp) != 0) {
1243 return bxattr_exit_ok;
1245 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1246 attrname, jcr->last_fname, be.bstrerror());
1247 Dmsg3(100, "facl_get/acl_get of xattr %s on \"%s\" failed: ERR=%s\n",
1248 attrname, jcr->last_fname, be.bstrerror());
1249 return bxattr_exit_error;
1254 #if defined(ACL_SID_FMT)
1256 * New format flag added in newer Solaris versions.
1258 flags = ACL_APPEND_ID | ACL_COMPACT_FMT | ACL_SID_FMT;
1260 flags = ACL_APPEND_ID | ACL_COMPACT_FMT;
1261 #endif /* ACL_SID_FMT */
1263 *acl_text = acl_totext(aclp, flags);
1271 return bxattr_exit_ok;
1272 #else /* HAVE_EXTENDED_ACL */
1274 aclent_t *acls = NULL;
1278 * See if this attribute has an ACL
1281 n = facl(fd, GETACLCNT, 0, NULL);
1283 n = acl(attrname, GETACLCNT, 0, NULL);
1286 if (n >= MIN_ACL_ENTRIES) {
1287 acls = (aclent_t *)malloc(n * sizeof(aclent_t));
1288 if ((fd != -1 && facl(fd, GETACL, n, acls) != n) ||
1289 acl(attrname, GETACL, n, acls) != n) {
1293 return bxattr_exit_ok;
1295 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1296 attrname, jcr->last_fname, be.bstrerror());
1297 Dmsg3(100, "facl/acl of xattr %s on \"%s\" failed: ERR=%s\n",
1298 attrname, jcr->last_fname, be.bstrerror());
1300 return bxattr_exit_error;
1305 * See if there is a non trivial acl on the file.
1307 if (!acl_is_trivial(n, acls)) {
1308 if ((*acl_text = acltotext(acls, n)) == NULL) {
1309 Mmsg3(jcr->errmsg, _("Unable to get acl text on xattr %s on file \"%s\": ERR=%s\n"),
1310 attrname, jcr->last_fname, be.bstrerror());
1311 Dmsg3(100, "acltotext of xattr %s on \"%s\" failed: ERR=%s\n",
1312 attrname, jcr->last_fname, be.bstrerror());
1314 return bxattr_exit_error;
1324 return bxattr_exit_ok;
1325 #endif /* HAVE_EXTENDED_ACL */
1327 #else /* HAVE_ACL */
1328 return bxattr_exit_ok;
1329 #endif /* HAVE_ACL */
1333 * Forward declaration for recursive function call.
1335 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent);
1338 * Save an extended or extensible attribute.
1339 * This is stored as an opaque stream of bytes with the following encoding:
1341 * <xattr_name>\0<stat_buffer>\0<acl_string>\0<actual_xattr_data>
1343 * or for a hardlinked or symlinked attribute
1345 * <xattr_name>\0<stat_buffer>\0<xattr_link_source>\0
1347 * xattr_name can be a subpath relative to the file the xattr is on.
1348 * stat_buffer is the string representation of the stat struct.
1349 * acl_string is an acl text when a non trivial acl is set on the xattr.
1350 * actual_xattr_data is the content of the xattr file.
1352 static bxattr_exit_code solaris_save_xattr(JCR *jcr, int fd, const char *xattr_namespace,
1353 const char *attrname, bool toplevel_hidden_dir, int stream)
1358 xattr_link_cache_entry_t *xlce;
1359 char target_attrname[PATH_MAX];
1360 char link_source[PATH_MAX];
1361 char *acl_text = NULL;
1362 char attribs[MAXSTRING];
1363 char buffer[BUFSIZ];
1364 bxattr_exit_code retval = bxattr_exit_error;
1367 bsnprintf(target_attrname, sizeof(target_attrname), "%s%s", xattr_namespace, attrname);
1370 * Get the stats of the extended or extensible attribute.
1372 if (fstatat(fd, attrname, &st, AT_SYMLINK_NOFOLLOW) < 0) {
1375 retval = bxattr_exit_ok;
1378 Mmsg3(jcr->errmsg, _("Unable to get status on xattr %s on file \"%s\": ERR=%s\n"),
1379 target_attrname, jcr->last_fname, be.bstrerror());
1380 Dmsg3(100, "fstatat of xattr %s on \"%s\" failed: ERR=%s\n",
1381 target_attrname, jcr->last_fname, be.bstrerror());
1387 * Based on the filetype perform the correct action. We support most filetypes here, more
1388 * then the actual implementation on Solaris supports so some code may never get executed
1389 * due to limitations in the implementation.
1391 switch (st.st_mode & S_IFMT) {
1396 * Get any acl on the xattr.
1398 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1402 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1403 * Encode the stat struct into an ASCII representation.
1405 encode_stat(attribs, &st, 0, stream);
1406 cnt = bsnprintf(buffer, sizeof(buffer), "%s%c%s%c%s%c",
1407 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1411 * Get any acl on the xattr.
1413 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1417 * See if this is the toplevel_hidden_dir being saved.
1419 if (toplevel_hidden_dir) {
1421 * Save the data for later storage when we encounter a real xattr. We store the data
1422 * in the jcr->xattr_data->content buffer and flush that just before sending out the
1423 * first real xattr. Encode the stat struct into an ASCII representation and jump
1424 * out of the function.
1426 encode_stat(attribs, &st, 0, stream);
1427 cnt = bsnprintf(buffer, sizeof(buffer),
1429 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1430 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1431 jcr->xattr_data->content_length = cnt;
1435 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1436 * Encode the stat struct into an ASCII representation.
1438 encode_stat(attribs, &st, 0, stream);
1439 cnt = bsnprintf(buffer, sizeof(buffer),
1441 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1446 * If this is a hardlinked file check the inode cache for a hit.
1448 if (st.st_nlink > 1) {
1450 * See if the cache already knows this inode number.
1452 if ((xlce = find_xattr_link_cache_entry(jcr, st.st_ino)) != NULL) {
1454 * Generate a xattr encoding with the reference to the target in there.
1456 encode_stat(attribs, &st, st.st_ino, stream);
1457 cnt = bsnprintf(buffer, sizeof(buffer),
1459 target_attrname, 0, attribs, 0, xlce->target, 0);
1460 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1461 jcr->xattr_data->content_length = cnt;
1462 retval = send_xattr_stream(jcr, stream);
1465 * For a hard linked file we are ready now, no need to recursively save the attributes.
1471 * Store this hard linked file in the cache.
1472 * Store the name relative to the top level xattr space.
1474 add_xattr_link_cache_entry(jcr, st.st_ino, target_attrname + 1);
1478 * Get any acl on the xattr.
1480 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok) {
1485 * Encode the stat struct into an ASCII representation.
1487 encode_stat(attribs, &st, 0, stream);
1488 cnt = bsnprintf(buffer, sizeof(buffer),
1490 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1493 * Open the extended or extensible attribute file.
1495 if ((attrfd = openat(fd, attrname, O_RDONLY)) < 0) {
1498 retval = bxattr_exit_ok;
1501 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on \"%s\": ERR=%s\n"),
1502 target_attrname, jcr->last_fname, be.bstrerror());
1503 Dmsg3(100, "openat of xattr %s on \"%s\" failed: ERR=%s\n",
1504 target_attrname, jcr->last_fname, be.bstrerror());
1511 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1512 * Encode the stat struct into an ASCII representation.
1514 if (readlink(attrname, link_source, sizeof(link_source)) < 0) {
1517 retval = bxattr_exit_ok;
1520 Mmsg3(jcr->errmsg, _("Unable to read symlin %s on \"%s\": ERR=%s\n"),
1521 target_attrname, jcr->last_fname, be.bstrerror());
1522 Dmsg3(100, "readlink of xattr %s on \"%s\" failed: ERR=%s\n",
1523 target_attrname, jcr->last_fname, be.bstrerror());
1529 * Generate a xattr encoding with the reference to the target in there.
1531 encode_stat(attribs, &st, st.st_ino, stream);
1532 cnt = bsnprintf(buffer, sizeof(buffer),
1534 target_attrname, 0, attribs, 0, link_source, 0);
1535 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1536 jcr->xattr_data->content_length = cnt;
1537 retval = send_xattr_stream(jcr, stream);
1539 if (retval == bxattr_exit_ok) {
1540 jcr->xattr_data->nr_saved++;
1544 * For a soft linked file we are ready now, no need to recursively save the attributes.
1552 * See if this is the first real xattr being saved.
1553 * If it is save the toplevel_hidden_dir attributes first.
1554 * This is easy as its stored already in the jcr->xattr_data->content buffer.
1556 if (jcr->xattr_data->nr_saved == 0) {
1557 retval = send_xattr_stream(jcr, STREAM_XATTR_SOLARIS);
1558 if (retval != bxattr_exit_ok) {
1561 jcr->xattr_data->nr_saved++;
1564 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1565 jcr->xattr_data->content_length = cnt;
1568 * Only dump the content of regular files.
1570 switch (st.st_mode & S_IFMT) {
1572 if (st.st_size > 0) {
1574 * Protect ourself against things getting out of hand.
1576 if (st.st_size >= MAX_XATTR_STREAM) {
1577 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
1578 jcr->last_fname, MAX_XATTR_STREAM);
1582 while ((cnt = read(attrfd, buffer, sizeof(buffer))) > 0) {
1583 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, jcr->xattr_data->content_length + cnt);
1584 memcpy(jcr->xattr_data->content + jcr->xattr_data->content_length, buffer, cnt);
1585 jcr->xattr_data->content_length += cnt;
1589 Mmsg2(jcr->errmsg, _("Unable to read content of xattr %s on file \"%s\"\n"),
1590 target_attrname, jcr->last_fname);
1591 Dmsg2(100, "read of data from xattr %s on \"%s\" failed\n",
1592 target_attrname, jcr->last_fname);
1603 retval = send_xattr_stream(jcr, stream);
1604 if (retval == bxattr_exit_ok) {
1605 jcr->xattr_data->nr_saved++;
1610 * Recursivly call solaris_save_extended_attributes for archiving the attributes
1611 * available on this extended attribute.
1614 retval = solaris_save_xattrs(jcr, xattr_namespace, attrname);
1617 * The recursive call could change our working dir so change back to the wanted workdir.
1619 if (fchdir(fd) < 0) {
1622 retval = bxattr_exit_ok;
1625 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space of file \"%s\": ERR=%s\n"),
1626 jcr->last_fname, be.bstrerror());
1627 Dmsg3(100, "Unable to fchdir to xattr space of file \"%s\" using fd %d: ERR=%s\n",
1628 jcr->last_fname, fd, be.bstrerror());
1644 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent)
1647 int fd, filefd = -1, attrdirfd = -1;
1650 char current_xattr_namespace[PATH_MAX];
1651 bxattr_exit_code retval = bxattr_exit_error;
1655 * Determine what argument to use. Use attr_parent when set
1656 * (recursive call) or jcr->last_fname for first call. Also save
1657 * the current depth of the xattr_space we are in.
1661 if (xattr_namespace) {
1662 bsnprintf(current_xattr_namespace, sizeof(current_xattr_namespace), "%s%s/",
1663 xattr_namespace, attr_parent);
1665 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1668 name = jcr->last_fname;
1669 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1673 * Open the file on which to save the xattrs read-only.
1675 if ((filefd = open(name, O_RDONLY | O_NONBLOCK)) < 0) {
1678 retval = bxattr_exit_ok;
1681 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1682 jcr->last_fname, be.bstrerror());
1683 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1684 jcr->last_fname, be.bstrerror());
1690 * Open the xattr naming space.
1692 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1696 * Gentile way of the system saying this type of xattr layering is not supported.
1697 * Which is not problem we just forget about this this xattr.
1698 * But as this is not an error we return a positive return value.
1700 retval = bxattr_exit_ok;
1703 retval = bxattr_exit_ok;
1706 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1707 name, jcr->last_fname, be.bstrerror());
1708 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1709 name, jcr->last_fname, be.bstrerror());
1715 * We need to change into the attribute directory to determine if each of the
1716 * attributes should be saved.
1718 if (fchdir(attrdirfd) < 0) {
1719 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1720 jcr->last_fname, be.bstrerror());
1721 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1722 jcr->last_fname, attrdirfd, be.bstrerror());
1727 * Save the data of the toplevel xattr hidden_dir. We save this one before anything
1728 * else because the readdir returns "." entry after the extensible attr entry.
1729 * And as we want this entry before anything else we better just save its data.
1732 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, ".",
1733 true, STREAM_XATTR_SOLARIS);
1735 if ((fd = dup(attrdirfd)) == -1 ||
1736 (dirp = fdopendir(fd)) == (DIR *)NULL) {
1737 Mmsg2(jcr->errmsg, _("Unable to list the xattr space on file \"%s\": ERR=%s\n"),
1738 jcr->last_fname, be.bstrerror());
1739 Dmsg3(100, "Unable to fdopendir xattr space on file \"%s\" using fd %d: ERR=%s\n",
1740 jcr->last_fname, fd, be.bstrerror());
1746 * Walk the namespace.
1748 while (dp = readdir(dirp)) {
1750 * Skip only the toplevel . dir.
1752 if (!attr_parent && bstrcmp(dp->d_name, "."))
1756 * Skip all .. directories
1758 if (bstrcmp(dp->d_name, ".."))
1761 Dmsg3(400, "processing extended attribute %s%s on file \"%s\"\n",
1762 current_xattr_namespace, dp->d_name, jcr->last_fname);
1764 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1766 * We are not interested in read-only extensible attributes.
1768 if (bstrcmp(dp->d_name, VIEW_READONLY)) {
1769 Dmsg3(400, "Skipping readonly extensible attributes %s%s on file \"%s\"\n",
1770 current_xattr_namespace, dp->d_name, jcr->last_fname);
1776 * We are only interested in read-write extensible attributes
1777 * when they contain non-transient values.
1779 if (bstrcmp(dp->d_name, VIEW_READWRITE)) {
1781 * Determine if there are non-transient system attributes at the toplevel.
1782 * We need to provide a fd to the open file.
1784 if (!solaris_has_non_transient_extensible_attributes(filefd)) {
1785 Dmsg3(400, "Skipping transient extensible attributes %s%s on file \"%s\"\n",
1786 current_xattr_namespace, dp->d_name, jcr->last_fname);
1793 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1794 false, STREAM_XATTR_SOLARIS_SYS);
1797 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1802 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1803 false, STREAM_XATTR_SOLARIS);
1807 retval = bxattr_exit_ok;
1810 if (attrdirfd != -1)
1818 static bxattr_exit_code solaris_restore_xattr_acl(JCR *jcr, int fd, const char *attrname, char *acl_text)
1820 #ifdef HAVE_EXTENDED_ACL
1825 if ((error = acl_fromtext(acl_text, &aclp)) != 0) {
1826 Mmsg1(jcr->errmsg, _("Unable to convert acl from text on file \"%s\"\n"),
1828 return bxattr_exit_error;
1831 if ((fd != -1 && facl_set(fd, aclp) != 0) ||
1832 acl_set(attrname, aclp) != 0) {
1833 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1834 attrname, jcr->last_fname, be.bstrerror());
1835 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1836 attrname, jcr->last_fname, be.bstrerror());
1837 return bxattr_exit_error;
1843 return bxattr_exit_ok;
1845 #else /* HAVE_EXTENDED_ACL */
1847 aclent_t *acls = NULL;
1850 acls = aclfromtext(acl_text, &n);
1852 if ((fd != -1 && facl(fd, SETACL, n, acls) != 0) ||
1853 acl(attrname, SETACL, n, acls) != 0) {
1854 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1855 attrname, jcr->last_fname, be.bstrerror());
1856 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1857 attrname, jcr->last_fname, be.bstrerror());
1858 return bxattr_exit_error;
1865 return bxattr_exit_ok;
1867 #endif /* HAVE_EXTENDED_ACL */
1870 #endif /* HAVE_ACL */
1872 static bxattr_exit_code solaris_restore_xattrs(JCR *jcr, bool is_extensible)
1874 int fd, filefd = -1, attrdirfd = -1, attrfd = -1;
1875 int used_bytes, total_bytes, cnt;
1876 char *bp, *target_attrname, *attribs;
1877 char *linked_target = NULL;
1878 char *acl_text = NULL;
1882 struct timeval times[2];
1883 bxattr_exit_code retval = bxattr_exit_error;
1887 * Parse the xattr stream. First the part that is the same for all xattrs.
1890 total_bytes = jcr->xattr_data->content_length;
1893 * The name of the target xattr has a leading / we are not interested
1894 * in that so skip it when decoding the string. We always start a the /
1895 * of the xattr space anyway.
1897 target_attrname = jcr->xattr_data->content + 1;
1898 if ((bp = strchr(target_attrname, '\0')) == (char *)NULL ||
1899 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1905 * Open the file on which to restore the xattrs read-only.
1907 if ((filefd = open(jcr->last_fname, O_RDONLY | O_NONBLOCK)) < 0) {
1908 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1909 jcr->last_fname, be.bstrerror());
1910 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1911 jcr->last_fname, be.bstrerror());
1916 * Open the xattr naming space and make it the current working dir.
1918 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1919 Mmsg2(jcr->errmsg, _("Unable to open xattr space on file \"%s\": ERR=%s\n"),
1920 jcr->last_fname, be.bstrerror());
1921 Dmsg2(100, "Unable to open xattr space on file \"%s\": ERR=%s\n",
1922 jcr->last_fname, be.bstrerror());
1926 if (fchdir(attrdirfd) < 0) {
1927 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1928 jcr->last_fname, be.bstrerror());
1929 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1930 jcr->last_fname, attrdirfd, be.bstrerror());
1935 * Try to open the correct xattr subdir based on the target_attrname given.
1936 * e.g. check if its a subdir attrname. Each / in the string makes us go
1939 while ((bp = strchr(target_attrname, '/')) != (char *)NULL) {
1942 if ((fd = open(target_attrname, O_RDONLY | O_NONBLOCK)) < 0) {
1943 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1944 target_attrname, jcr->last_fname, be.bstrerror());
1945 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1946 target_attrname, jcr->last_fname, be.bstrerror());
1954 * Open the xattr naming space.
1956 if ((fd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1957 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1958 target_attrname, jcr->last_fname, be.bstrerror());
1959 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1960 target_attrname, jcr->last_fname, be.bstrerror());
1968 * Make the xattr space our current workingdir.
1970 if (fchdir(attrdirfd) < 0) {
1971 Mmsg3(jcr->errmsg, _("Unable to chdir to xattr space %s on file \"%s\": ERR=%s\n"),
1972 target_attrname, jcr->last_fname, be.bstrerror());
1973 Dmsg4(100, "Unable to fchdir to xattr space %s on file \"%s\" using fd %d: ERR=%s\n",
1974 target_attrname, jcr->last_fname, attrdirfd, be.bstrerror());
1978 target_attrname = ++bp;
1982 * Decode the attributes from the stream.
1984 decode_stat(attribs, &st, &inum);
1987 * Decode the next field (acl_text).
1989 if ((bp = strchr(attribs, '\0')) == (char *)NULL ||
1990 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1996 * Based on the filetype perform the correct action. We support most filetypes here, more
1997 * then the actual implementation on Solaris supports so some code may never get executed
1998 * due to limitations in the implementation.
2000 switch (st.st_mode & S_IFMT) {
2003 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2005 unlinkat(attrdirfd, target_attrname, 0);
2006 if (mkfifo(target_attrname, st.st_mode) < 0) {
2007 Mmsg3(jcr->errmsg, _("Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n"),
2008 target_attrname, jcr->last_fname, be.bstrerror());
2009 Dmsg3(100, "Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n",
2010 target_attrname, jcr->last_fname, be.bstrerror());
2017 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2019 unlinkat(attrdirfd, target_attrname, 0);
2020 if (mknod(target_attrname, st.st_mode, st.st_rdev) < 0) {
2021 Mmsg3(jcr->errmsg, _("Unable to mknod xattr %s on file \"%s\": ERR=%s\n"),
2022 target_attrname, jcr->last_fname, be.bstrerror());
2023 Dmsg3(100, "Unable to mknod xattr %s on file \"%s\": ERR=%s\n",
2024 target_attrname, jcr->last_fname, be.bstrerror());
2030 * If its not the hidden_dir create the entry.
2031 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2033 if (!bstrcmp(target_attrname, ".")) {
2034 unlinkat(attrdirfd, target_attrname, AT_REMOVEDIR);
2035 if (mkdir(target_attrname, st.st_mode) < 0) {
2036 Jmsg3(jcr, M_WARNING, 0, _("Unable to mkdir xattr %s on file \"%s\": ERR=%s\n"),
2037 target_attrname, jcr->last_fname, be.bstrerror());
2038 Dmsg3(100, "Unable to mkdir xattr %s on file \"%s\": ERR=%s\n",
2039 target_attrname, jcr->last_fname, be.bstrerror());
2046 * See if this is a hard linked file. e.g. inum != 0
2051 unlinkat(attrdirfd, target_attrname, 0);
2052 if (link(linked_target, target_attrname) < 0) {
2053 Mmsg4(jcr->errmsg, _("Unable to link xattr %s to %s on file \"%s\": ERR=%s\n"),
2054 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2055 Dmsg4(100, "Unable to link xattr %s to %s on file \"%s\": ERR=%s\n",
2056 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2061 * Successfully restored xattr.
2063 retval = bxattr_exit_ok;
2066 if ((bp = strchr(acl_text, '\0')) == (char *)NULL ||
2067 (used_bytes = (bp - jcr->xattr_data->content)) >= total_bytes) {
2071 if (used_bytes < (total_bytes - 1))
2075 * Restore the actual xattr.
2077 if (!is_extensible) {
2078 unlinkat(attrdirfd, target_attrname, 0);
2081 if ((attrfd = openat(attrdirfd, target_attrname, O_RDWR | O_CREAT | O_TRUNC, st.st_mode)) < 0) {
2082 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
2083 target_attrname, jcr->last_fname, be.bstrerror());
2084 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
2085 target_attrname, jcr->last_fname, be.bstrerror());
2091 * Restore the actual data.
2093 if (st.st_size > 0) {
2094 used_bytes = (data - jcr->xattr_data->content);
2095 cnt = total_bytes - used_bytes;
2098 * Do a sanity check, the st.st_size should be the same as the number of bytes
2099 * we have available as data of the stream.
2101 if (cnt != st.st_size) {
2102 Mmsg2(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n"),
2103 target_attrname, jcr->last_fname);
2104 Dmsg2(100, "Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n",
2105 target_attrname, jcr->last_fname);
2110 cnt = write(attrfd, data, cnt);
2112 Mmsg3(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": ERR=%s\n"),
2113 target_attrname, jcr->last_fname, be.bstrerror());
2114 Dmsg3(100, "Unable to restore data of xattr %s on file \"%s\": ERR=%s\n",
2115 target_attrname, jcr->last_fname, be.bstrerror());
2121 cnt = total_bytes - used_bytes;
2127 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2131 if (symlink(linked_target, target_attrname) < 0) {
2132 Mmsg4(jcr->errmsg, _("Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n"),
2133 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2134 Dmsg4(100, "Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n",
2135 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2140 * Successfully restored xattr.
2142 retval = bxattr_exit_ok;
2149 * Restore owner and acl for non extensible attributes.
2151 if (!is_extensible) {
2152 if (fchownat(attrdirfd, target_attrname, st.st_uid, st.st_gid, AT_SYMLINK_NOFOLLOW) < 0) {
2156 * Gentile way of the system saying this type of xattr layering is not supported.
2157 * But as this is not an error we return a positive return value.
2159 retval = bxattr_exit_ok;
2162 retval = bxattr_exit_ok;
2165 Mmsg3(jcr->errmsg, _("Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n"),
2166 target_attrname, jcr->last_fname, be.bstrerror());
2167 Dmsg3(100, "Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n",
2168 target_attrname, jcr->last_fname, be.bstrerror());
2175 if (acl_text && *acl_text)
2176 if (solaris_restore_xattr_acl(jcr, attrfd, target_attrname, acl_text) != bxattr_exit_ok)
2178 #endif /* HAVE_ACL */
2181 * For a non extensible attribute restore access and modification time on the xattr.
2183 if (!is_extensible) {
2184 times[0].tv_sec = st.st_atime;
2185 times[0].tv_usec = 0;
2186 times[1].tv_sec = st.st_mtime;
2187 times[1].tv_usec = 0;
2189 if (futimesat(attrdirfd, target_attrname, times) < 0) {
2190 Mmsg3(jcr->errmsg, _("Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n"),
2191 target_attrname, jcr->last_fname, be.bstrerror());
2192 Dmsg3(100, "Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n",
2193 target_attrname, jcr->last_fname, be.bstrerror());
2199 * Successfully restored xattr.
2201 retval = bxattr_exit_ok;
2205 Mmsg1(jcr->errmsg, _("Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n"),
2207 Dmsg1(100, "Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n",
2214 if (attrdirfd != -1) {
2223 static bxattr_exit_code solaris_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2226 bxattr_exit_code retval = bxattr_exit_ok;
2229 * First see if extended attributes or extensible attributes are present.
2230 * If not just pretend things went ok.
2232 if (pathconf(jcr->last_fname, _PC_XATTR_EXISTS) > 0) {
2233 jcr->xattr_data->nr_saved = 0;
2234 jcr->xattr_data->link_cache = New(alist(10, not_owned_by_alist));
2237 * As we change the cwd in the save function save the current cwd
2238 * for restore after return from the solaris_save_xattrs function.
2240 getcwd(cwd, sizeof(cwd));
2241 retval = solaris_save_xattrs(jcr, NULL, NULL);
2243 delete jcr->xattr_data->link_cache;
2244 jcr->xattr_data->link_cache = NULL;
2249 static bxattr_exit_code solaris_parse_xattr_streams(JCR *jcr, int stream)
2252 bool is_extensible = false;
2253 bxattr_exit_code retval;
2256 * First make sure we can restore xattr on the filesystem.
2259 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
2260 case STREAM_XATTR_SOLARIS_SYS:
2261 if (pathconf(jcr->last_fname, _PC_SATTR_ENABLED) <= 0) {
2262 Mmsg1(jcr->errmsg, _("Failed to restore extensible attributes on file \"%s\"\n"), jcr->last_fname);
2263 Dmsg1(100, "Unable to restore extensible attributes on file \"%s\", filesystem doesn't support this\n",
2265 return bxattr_exit_error;
2268 is_extensible = true;
2271 case STREAM_XATTR_SOLARIS:
2272 if (pathconf(jcr->last_fname, _PC_XATTR_ENABLED) <= 0) {
2273 Mmsg1(jcr->errmsg, _("Failed to restore extended attributes on file \"%s\"\n"), jcr->last_fname);
2274 Dmsg1(100, "Unable to restore extended attributes on file \"%s\", filesystem doesn't support this\n",
2276 return bxattr_exit_error;
2280 return bxattr_exit_error;
2284 * As we change the cwd in the restore function save the current cwd
2285 * for restore after return from the solaris_restore_xattrs function.
2287 getcwd(cwd, sizeof(cwd));
2288 retval = solaris_restore_xattrs(jcr, is_extensible);
2295 * Function pointers to the build and parse function to use for these xattrs.
2297 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = solaris_build_xattr_streams;
2298 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = solaris_parse_xattr_streams;
2300 #endif /* defined(HAVE_SUN_OS) */
2303 * Entry points when compiled with support for XATTRs on a supported platform.
2305 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2307 if (os_build_xattr_streams) {
2308 return (*os_build_xattr_streams)(jcr, ff_pkt);
2310 return bxattr_exit_error;
2313 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
2317 if (os_parse_xattr_streams) {
2319 * See if we can parse this stream, and ifso give it a try.
2321 for (cnt = 0; cnt < sizeof(os_default_xattr_streams) / sizeof(int); cnt++) {
2322 if (os_default_xattr_streams[cnt] == stream) {
2323 return (*os_parse_xattr_streams)(jcr, stream);
2328 * Issue a warning and discard the message. But pretend the restore was ok.
2330 Jmsg2(jcr, M_WARNING, 0,
2331 _("Can't restore Extended Attributes of %s - incompatible xattr stream encountered - %d\n"),
2332 jcr->last_fname, stream);
2333 return bxattr_exit_error;