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);
152 delete xattr_value_list;
156 * The xattr stream for OSX, FreeBSD, Linux and NetBSD is a serialized stream of bytes
157 * which encodes one or more xattr_t structures.
159 * The Serialized stream consists of the following elements:
160 * magic - A magic string which makes it easy to detect any binary incompatabilites
161 * name_length - The length of the following xattr name
162 * name - The name of the extended attribute
163 * value_length - The length of the following xattr data
164 * value - The actual content of the extended attribute
166 * This is repeated 1 or more times.
169 static uint32_t serialize_xattr_stream(JCR *jcr, uint32_t expected_serialize_len, alist *xattr_value_list)
171 xattr_t *current_xattr;
175 * Make sure the serialized stream fits in the poolmem buffer.
176 * We allocate some more to be sure the stream is gonna fit.
178 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, expected_serialize_len + 10);
179 ser_begin(jcr->xattr_data->content, expected_serialize_len + 10);
182 * Walk the list of xattrs and serialize the data.
184 foreach_alist(current_xattr, xattr_value_list) {
186 * See if we can shortcut.
188 if (current_xattr == NULL || current_xattr->magic != XATTR_MAGIC)
191 ser_uint32(current_xattr->magic);
192 ser_uint32(current_xattr->name_length);
193 ser_bytes(current_xattr->name, current_xattr->name_length);
195 ser_uint32(current_xattr->value_length);
196 ser_bytes(current_xattr->value, current_xattr->value_length);
199 ser_end(jcr->xattr_data->content, expected_serialize_len + 10);
200 jcr->xattr_data->content_length = ser_length(jcr->xattr_data->content);
202 return jcr->xattr_data->content_length;
205 static bxattr_exit_code unserialize_xattr_stream(JCR *jcr, alist *xattr_value_list)
208 xattr_t *current_xattr;
209 bxattr_exit_code retval = bxattr_exit_ok;
212 * Parse the stream and call restore_xattr_on_file for each extended attribute.
214 * Start unserializing the data. We keep on looping while we have not
215 * unserialized all bytes in the stream.
217 unser_begin(jcr->xattr_data->content, jcr->xattr_data->content_length);
218 while (unser_length(jcr->xattr_data->content) < jcr->xattr_data->content_length) {
220 * First make sure the magic is present. This way we can easily catch corruption.
221 * Any missing MAGIC is fatal we do NOT try to continue.
224 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
225 unser_uint32(current_xattr->magic);
226 if (current_xattr->magic != XATTR_MAGIC) {
227 Mmsg1(jcr->errmsg, _("Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n"),
229 Dmsg1(100, "Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n",
232 return bxattr_exit_error;
236 * Decode the valuepair. First decode the length of the name.
238 unser_uint32(current_xattr->name_length);
241 * Allocate room for the name and decode its content.
243 current_xattr->name = (char *)malloc(current_xattr->name_length + 1);
244 unser_bytes(current_xattr->name, current_xattr->name_length);
247 * The xattr_name needs to be null terminated for lsetxattr.
249 current_xattr->name[current_xattr->name_length] = '\0';
252 * Decode the value length.
254 unser_uint32(current_xattr->value_length);
257 * Allocate room for the value and decode its content.
259 current_xattr->value = (char *)malloc(current_xattr->value_length);
260 unser_bytes(current_xattr->value, current_xattr->value_length);
262 xattr_value_list->append(current_xattr);
265 unser_end(jcr->xattr_data->content, jcr->xattr_data->content_length);
271 * This is a supported OS, See what kind of interface we should use.
273 #if defined(HAVE_DARWIN_OS) || \
274 defined(HAVE_LINUX_OS)
276 #if (!defined(HAVE_LISTXATTR) && !defined(HAVE_LLISTXATTR)) || \
277 (!defined(HAVE_GETXATTR) && !defined(HAVE_LGETXATTR)) || \
278 (!defined(HAVE_SETXATTR) && !defined(HAVE_LSETXATTR))
279 #error "Missing either full support for the LXATTR or XATTR functions."
282 #ifdef HAVE_SYS_XATTR_H
283 #include <sys/xattr.h>
285 #error "Missing sys/xattr.h header file"
289 * Define the supported XATTR streams for this OS
291 #if defined(HAVE_DARWIN_OS)
292 static int os_default_xattr_streams[1] = { STREAM_XATTR_DARWIN };
293 static const char *xattr_acl_skiplist[2] = { "com.apple.system.Security", NULL };
294 static const char *xattr_skiplist[3] = { "com.apple.system.extendedsecurity", "com.apple.ResourceFork", NULL };
295 #elif defined(HAVE_LINUX_OS)
296 static int os_default_xattr_streams[1] = { STREAM_XATTR_LINUX };
297 static const char *xattr_acl_skiplist[2] = { "system.posix_acl_access", NULL };
298 static const char *xattr_skiplist[1] = { NULL };
302 * OSX doesn't have llistxattr, lgetxattr and lsetxattr but has
303 * listxattr, getxattr and setxattr with an extra options argument
304 * which mimics the l variants of the functions when we specify
305 * XATTR_NOFOLLOW as the options value.
307 #if defined(HAVE_DARWIN_OS)
308 #define llistxattr(path, list, size) listxattr((path), (list), (size), XATTR_NOFOLLOW)
309 #define lgetxattr(path, name, value, size) getxattr((path), (name), (value), (size), 0, XATTR_NOFOLLOW)
310 #define lsetxattr(path, name, value, size, flags) setxattr((path), (name), (value), (size), (flags), XATTR_NOFOLLOW)
313 * Fallback to the non l-functions when those are not available.
315 #if defined(HAVE_GETXATTR) && !defined(HAVE_LGETXATTR)
316 #define lgetxattr getxattr
318 #if defined(HAVE_SETXATTR) && !defined(HAVE_LSETXATTR)
319 #define lsetxattr setxattr
321 #if defined(HAVE_LISTXATTR) && !defined(HAVE_LLISTXATTR)
322 #define llistxattr listxattr
326 static bxattr_exit_code linux_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
329 char *xattr_list, *bp;
330 int cnt, xattr_count = 0;
331 int32_t xattr_list_len,
333 uint32_t expected_serialize_len = 0;
334 xattr_t *current_xattr;
335 alist *xattr_value_list = NULL;
336 bxattr_exit_code retval = bxattr_exit_error;
340 * First get the length of the available list with extended attributes.
342 xattr_list_len = llistxattr(jcr->last_fname, NULL, 0);
343 if (xattr_list_len < 0) {
346 return bxattr_exit_ok;
348 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
349 jcr->last_fname, be.bstrerror());
350 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
351 jcr->last_fname, be.bstrerror());
352 return bxattr_exit_error;
354 } else if (xattr_list_len == 0) {
355 return bxattr_exit_ok;
359 * Allocate room for the extented attribute list.
361 xattr_list = (char *)malloc(xattr_list_len + 1);
362 memset((caddr_t)xattr_list, 0, xattr_list_len + 1);
365 * Get the actual list of extended attributes names for a file.
367 xattr_list_len = llistxattr(jcr->last_fname, xattr_list, xattr_list_len);
368 if (xattr_list_len < 0) {
371 retval = bxattr_exit_ok;
374 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
375 jcr->last_fname, be.bstrerror());
376 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
377 jcr->last_fname, be.bstrerror());
381 xattr_list[xattr_list_len] = '\0';
383 xattr_value_list = New(alist(10, not_owned_by_alist));
386 * Walk the list of extended attributes names and retrieve the data.
387 * We already count the bytes needed for serializing the stream later on.
390 while ((bp - xattr_list) + 1 < xattr_list_len) {
394 * On some OSes you also get the acls in the extented attribute list.
395 * So we check if we are already backing up acls and if we do we
396 * don't store the extended attribute with the same info.
398 if (ff_pkt->flags & FO_ACL) {
399 for (cnt = 0; xattr_acl_skiplist[cnt] != NULL; cnt++) {
400 if (bstrcmp(bp, xattr_acl_skiplist[cnt])) {
408 * On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
411 for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
412 if (bstrcmp(bp, xattr_skiplist[cnt])) {
420 bp = strchr(bp, '\0') + 1;
425 * Each xattr valuepair starts with a magic so we can parse it easier.
427 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
428 current_xattr->magic = XATTR_MAGIC;
429 expected_serialize_len += sizeof(current_xattr->magic);
432 * Allocate space for storing the name.
434 current_xattr->name_length = strlen(bp);
435 current_xattr->name = (char *)malloc(current_xattr->name_length);
436 memcpy((caddr_t)current_xattr->name, (caddr_t)bp, current_xattr->name_length);
438 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
441 * First see how long the value is for the extended attribute.
443 xattr_value_len = lgetxattr(jcr->last_fname, bp, NULL, 0);
444 if (xattr_value_len < 0) {
447 retval = bxattr_exit_ok;
448 free(current_xattr->name);
452 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
453 jcr->last_fname, be.bstrerror());
454 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
455 jcr->last_fname, be.bstrerror());
456 free(current_xattr->name);
463 * Allocate space for storing the value.
465 current_xattr->value = (char *)malloc(xattr_value_len);
466 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
468 xattr_value_len = lgetxattr(jcr->last_fname, bp, current_xattr->value, xattr_value_len);
469 if (xattr_value_len < 0) {
472 retval = bxattr_exit_ok;
473 free(current_xattr->value);
474 free(current_xattr->name);
478 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
479 jcr->last_fname, be.bstrerror());
480 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
481 jcr->last_fname, be.bstrerror());
482 free(current_xattr->value);
483 free(current_xattr->name);
490 * Store the actual length of the value.
492 current_xattr->value_length = xattr_value_len;
493 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
496 * Protect ourself against things getting out of hand.
498 if (expected_serialize_len >= MAX_XATTR_STREAM) {
499 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
500 jcr->last_fname, MAX_XATTR_STREAM);
501 free(current_xattr->value);
502 free(current_xattr->name);
507 xattr_value_list->append(current_xattr);
509 bp = strchr(bp, '\0') + 1;
513 xattr_list = (char *)NULL;
516 * If we found any xattr send them to the SD.
518 if (xattr_count > 0) {
520 * Serialize the datastream.
522 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
523 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
525 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
530 xattr_drop_internal_table(xattr_value_list);
533 * Send the datastream to the SD.
535 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
537 xattr_drop_internal_table(xattr_value_list);
539 return bxattr_exit_ok;
543 if (xattr_list != NULL) {
546 if (xattr_value_list != NULL) {
547 xattr_drop_internal_table(xattr_value_list);
552 static bxattr_exit_code linux_xattr_parse_streams(JCR *jcr, int stream)
554 xattr_t *current_xattr;
555 alist *xattr_value_list;
558 xattr_value_list = New(alist(10, not_owned_by_alist));
560 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
561 xattr_drop_internal_table(xattr_value_list);
562 return bxattr_exit_error;
565 foreach_alist(current_xattr, xattr_value_list) {
566 if (lsetxattr(jcr->last_fname, current_xattr->name, current_xattr->value, current_xattr->value_length, 0) != 0) {
571 Mmsg2(jcr->errmsg, _("lsetxattr error on file \"%s\": ERR=%s\n"),
572 jcr->last_fname, be.bstrerror());
573 Dmsg2(100, "lsetxattr error file=%s ERR=%s\n",
574 jcr->last_fname, be.bstrerror());
580 xattr_drop_internal_table(xattr_value_list);
581 return bxattr_exit_ok;
584 xattr_drop_internal_table(xattr_value_list);
585 return bxattr_exit_error;
589 * Function pointers to the build and parse function to use for these xattrs.
591 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = linux_xattr_build_streams;
592 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = linux_xattr_parse_streams;
594 #elif defined(HAVE_FREEBSD_OS) || \
595 defined(HAVE_NETBSD_OS) || \
596 defined(HAVE_OPENBSD_OS)
598 #if (!defined(HAVE_EXTATTR_GET_LINK) && !defined(HAVE_EXTATTR_GET_FILE)) || \
599 (!defined(HAVE_EXTATTR_SET_LINK) && !defined(HAVE_EXTATTR_SET_FILE)) || \
600 (!defined(HAVE_EXTATTR_LIST_LINK) && !defined(HAVE_EXTATTR_LIST_FILE)) || \
601 !defined(HAVE_EXTATTR_NAMESPACE_TO_STRING) || \
602 !defined(HAVE_EXTATTR_STRING_TO_NAMESPACE)
603 #error "Missing full support for the extattr functions."
606 #ifdef HAVE_SYS_EXTATTR_H
607 #include <sys/extattr.h>
609 #error "Missing sys/extattr.h header file"
612 #ifdef HAVE_LIBUTIL_H
616 #if !defined(HAVE_EXTATTR_GET_LINK) && defined(HAVE_EXTATTR_GET_FILE)
617 #define extattr_get_link extattr_get_file
619 #if !defined(HAVE_EXTATTR_SET_LINK) && defined(HAVE_EXTATTR_SET_FILE)
620 #define extattr_set_link extattr_set_file
622 #if !defined(HAVE_EXTATTR_LIST_LINK) && defined(HAVE_EXTATTR_LIST_FILE)
623 #define extattr_list_link extattr_list_file
626 #if defined(HAVE_FREEBSD_OS)
627 static int os_default_xattr_streams[1] = { STREAM_XATTR_FREEBSD };
628 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
629 static const char *xattr_acl_skiplist[2] = { "system.posix1e.acl_access", NULL };
630 static const char *xattr_skiplist[1] = { NULL };
631 #elif defined(HAVE_NETBSD_OS)
632 static int os_default_xattr_streams[1] = { STREAM_XATTR_NETBSD };
633 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
634 static const char *xattr_acl_skiplist[1] = { NULL };
635 static const char *xattr_skiplist[1] = { NULL };
636 #elif defined(HAVE_OPENBSD_OS)
637 static int os_default_xattr_streams[1] = { STREAM_XATTR_OPENBSD };
638 static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
639 static const char *xattr_acl_skiplist[1] = { NULL };
640 static const char *xattr_skiplist[1] = { NULL };
643 static bxattr_exit_code bsd_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
647 int cnt, index, xattr_count = 0;
648 int32_t xattr_list_len,
650 uint32_t expected_serialize_len = 0;
651 unsigned int namespace_index;
653 char *current_attrnamespace = NULL;
654 char current_attrname[XATTR_BUFSIZ], current_attrtuple[XATTR_BUFSIZ];
655 xattr_t *current_xattr;
656 alist *xattr_value_list = NULL;
657 bxattr_exit_code retval = bxattr_exit_error;
660 xattr_value_list = New(alist(10, not_owned_by_alist));
663 * Loop over all available xattr namespaces.
665 for (namespace_index = 0; namespace_index < sizeof(os_default_xattr_namespaces) / sizeof(int); namespace_index++) {
666 attrnamespace = os_default_xattr_namespaces[namespace_index];
669 * Convert the numeric attrnamespace into a string representation and make a private copy of that string.
670 * The extattr_namespace_to_string functions returns a strdupped string which we need to free.
672 if (extattr_namespace_to_string(attrnamespace, ¤t_attrnamespace) != 0) {
673 Mmsg2(jcr->errmsg, _("Failed to convert %d into namespace on file \"%s\"\n"),
674 attrnamespace, jcr->last_fname);
675 Dmsg2(100, "Failed to convert %d into namespace on file \"%s\"\n",
676 attrnamespace, jcr->last_fname);
681 * First get the length of the available list with extended attributes.
682 * If we get EPERM on system namespace, don't return error.
683 * This is expected for normal users trying to archive the system
684 * namespace on FreeBSD 6.2 and later. On NetBSD 3.1 and later,
685 * they've decided to return EOPNOTSUPP instead.
687 xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, NULL, 0);
688 if (xattr_list_len < 0) {
691 retval = bxattr_exit_ok;
693 #if defined(EOPNOTSUPP)
697 if (attrnamespace == EXTATTR_NAMESPACE_SYSTEM) {
698 actuallyfree(current_attrnamespace);
699 current_attrnamespace = NULL;
706 Mmsg2(jcr->errmsg, _("extattr_list_link error on file \"%s\": ERR=%s\n"),
707 jcr->last_fname, be.bstrerror());
708 Dmsg2(100, "extattr_list_link error file=%s ERR=%s\n",
709 jcr->last_fname, be.bstrerror());
712 } else if (xattr_list_len == 0) {
717 * Allocate room for the extented attribute list.
719 xattr_list = (char *)malloc(xattr_list_len + 1);
720 memset((caddr_t)xattr_list, 0, xattr_list_len + 1);
723 * Get the actual list of extended attributes names for a file.
725 xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, xattr_list, xattr_list_len);
726 if (xattr_list_len < 0) {
729 retval = bxattr_exit_ok;
732 Mmsg2(jcr->errmsg, _("extattr_list_link error on file \"%s\": ERR=%s\n"),
733 jcr->last_fname, be.bstrerror());
734 Dmsg2(100, "extattr_list_link error file=%s ERR=%s\n",
735 jcr->last_fname, be.bstrerror());
739 xattr_list[xattr_list_len] = '\0';
742 * Walk the list of extended attributes names and retrieve the data.
743 * We already count the bytes needed for serializing the stream later on.
745 for (index = 0; index < xattr_list_len; index += xattr_list[index] + 1) {
749 * Print the current name into the buffer as its not null terminated we need to
750 * use the length encoded in the string for copying only the needed bytes.
752 cnt = MIN((sizeof(current_attrname) - 1), xattr_list[index]);
753 strncpy(current_attrname, xattr_list + (index + 1), cnt);
754 current_attrname[cnt] = '\0';
757 * First make a xattr tuple of the current namespace and the name of the xattr.
758 * e.g. something like user.<attrname> or system.<attrname>
760 bsnprintf(current_attrtuple, sizeof(current_attrtuple), "%s.%s", current_attrnamespace, current_attrname);
763 * On some OSes you also get the acls in the extented attribute list.
764 * So we check if we are already backing up acls and if we do we
765 * don't store the extended attribute with the same info.
767 if (ff_pkt->flags & FO_ACL) {
768 for (cnt = 0; xattr_acl_skiplist[cnt] != NULL; cnt++) {
769 if (bstrcmp(current_attrtuple, xattr_acl_skiplist[cnt])) {
777 * On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
780 for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
781 if (bstrcmp(current_attrtuple, xattr_skiplist[cnt])) {
793 * Each xattr valuepair starts with a magic so we can parse it easier.
795 current_xattr = (xattr_t *)malloc(sizeof(xattr_t));
796 current_xattr->magic = XATTR_MAGIC;
797 expected_serialize_len += sizeof(current_xattr->magic);
800 * Allocate space for storing the name.
802 current_xattr->name_length = strlen(current_attrtuple);
803 current_xattr->name = (char *)malloc(current_xattr->name_length);
804 memcpy((caddr_t)current_xattr->name, (caddr_t)current_attrtuple, current_xattr->name_length);
806 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
809 * First see how long the value is for the extended attribute.
811 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, NULL, 0);
812 if (xattr_value_len < 0) {
815 retval = bxattr_exit_ok;
816 free(current_xattr->name);
820 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
821 jcr->last_fname, be.bstrerror());
822 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
823 jcr->last_fname, be.bstrerror());
824 free(current_xattr->name);
831 * Allocate space for storing the value.
833 current_xattr->value = (char *)malloc(xattr_value_len);
834 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
836 xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, current_xattr->value, xattr_value_len);
837 if (xattr_value_len < 0) {
840 retval = bxattr_exit_ok;
841 free(current_xattr->value);
842 free(current_xattr->name);
846 Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
847 jcr->last_fname, be.bstrerror());
848 Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
849 jcr->last_fname, be.bstrerror());
850 free(current_xattr->value);
851 free(current_xattr->name);
858 * Store the actual length of the value.
860 current_xattr->value_length = xattr_value_len;
861 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
864 * Protect ourself against things getting out of hand.
866 if (expected_serialize_len >= MAX_XATTR_STREAM) {
867 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
868 jcr->last_fname, MAX_XATTR_STREAM);
869 free(current_xattr->value);
870 free(current_xattr->name);
875 xattr_value_list->append(current_xattr);
881 * Drop the local copy of the current_attrnamespace.
883 actuallyfree(current_attrnamespace);
884 current_attrnamespace = NULL;
887 * We are done with this xattr list.
890 xattr_list = (char *)NULL;
894 * If we found any xattr send them to the SD.
896 if (xattr_count > 0) {
898 * Serialize the datastream.
900 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
901 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
903 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
908 xattr_drop_internal_table(xattr_value_list);
909 xattr_value_list = NULL;
912 * Send the datastream to the SD.
914 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
916 xattr_drop_internal_table(xattr_value_list);
917 xattr_value_list = NULL;
919 return bxattr_exit_ok;
923 if (current_attrnamespace != NULL) {
924 actuallyfree(current_attrnamespace);
925 current_attrnamespace = NULL;
927 if (xattr_list != NULL) {
930 if (xattr_value_list != NULL) {
931 xattr_drop_internal_table(xattr_value_list);
932 xattr_value_list = NULL;
937 static bxattr_exit_code bsd_parse_xattr_streams(JCR *jcr, int stream)
939 xattr_t *current_xattr;
940 alist *xattr_value_list;
941 int current_attrnamespace, cnt;
942 char *attrnamespace, *attrname;
945 xattr_value_list = New(alist(10, not_owned_by_alist));
947 if (unserialize_xattr_stream(jcr, xattr_value_list) != bxattr_exit_ok) {
948 xattr_drop_internal_table(xattr_value_list);
949 return bxattr_exit_error;
952 foreach_alist(current_xattr, xattr_value_list) {
954 * Try splitting the xattr_name into a namespace and name part.
955 * The splitting character is a .
957 attrnamespace = current_xattr->name;
958 if ((attrname = strchr(attrnamespace, '.')) == (char *)NULL) {
959 Mmsg2(jcr->errmsg, _("Failed to split %s into namespace and name part on file \"%s\"\n"),
960 current_xattr->name, jcr->last_fname);
961 Dmsg2(100, "Failed to split %s into namespace and name part on file \"%s\"\n",
962 current_xattr->name, jcr->last_fname);
968 * Make sure the attrnamespace makes sense.
970 if (extattr_string_to_namespace(attrnamespace, ¤t_attrnamespace) != 0) {
971 Mmsg2(jcr->errmsg, _("Failed to convert %s into namespace on file \"%s\"\n"),
972 attrnamespace, jcr->last_fname);
973 Dmsg2(100, "Failed to convert %s into namespace on file \"%s\"\n",
974 attrnamespace, jcr->last_fname);
979 * Try restoring the extended attribute.
981 cnt = extattr_set_link(jcr->last_fname, current_attrnamespace,
982 attrname, current_xattr->value, current_xattr->value_length);
983 if (cnt < 0 || cnt != current_xattr->value_length) {
989 Mmsg2(jcr->errmsg, _("extattr_set_link error on file \"%s\": ERR=%s\n"),
990 jcr->last_fname, be.bstrerror());
991 Dmsg2(100, "extattr_set_link error file=%s ERR=%s\n",
992 jcr->last_fname, be.bstrerror());
999 xattr_drop_internal_table(xattr_value_list);
1000 return bxattr_exit_ok;
1003 xattr_drop_internal_table(xattr_value_list);
1004 return bxattr_exit_error;
1008 * Function pointers to the build and parse function to use for these xattrs.
1010 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = bsd_build_xattr_streams;
1011 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = bsd_parse_xattr_streams;
1013 #elif defined(HAVE_SUN_OS)
1015 * Solaris extended attributes were introduced in Solaris 9
1018 * Solaris extensible attributes were introduced in OpenSolaris
1019 * by PSARC 2007/315 Solaris extensible attributes are also
1020 * sometimes called extended system attributes.
1022 * man fsattr(5) on Solaris gives a wealth of info. The most
1023 * important bits are:
1025 * Attributes are logically supported as files within the file
1026 * system. The file system is therefore augmented with an
1027 * orthogonal name space of file attributes. Any file (includ-
1028 * ing attribute files) can have an arbitrarily deep attribute
1029 * tree associated with it. Attribute values are accessed by
1030 * file descriptors obtained through a special attribute inter-
1031 * face. This logical view of "attributes as files" allows the
1032 * leveraging of existing file system interface functionality
1033 * to support the construction, deletion, and manipulation of
1036 * The special files "." and ".." retain their accustomed
1037 * semantics within the attribute hierarchy. The "." attribute
1038 * file refers to the current directory and the ".." attribute
1039 * file refers to the parent directory. The unnamed directory
1040 * at the head of each attribute tree is considered the "child"
1041 * of the file it is associated with and the ".." file refers
1042 * to the associated file. For any non-directory file with
1043 * attributes, the ".." entry in the unnamed directory refers
1044 * to a file that is not a directory.
1046 * Conceptually, the attribute model is fully general. Extended
1047 * attributes can be any type of file (doors, links, direc-
1048 * tories, and so forth) and can even have their own attributes
1049 * (fully recursive). As a result, the attributes associated
1050 * with a file could be an arbitrarily deep directory hierarchy
1051 * where each attribute could have an equally complex attribute
1052 * tree associated with it. Not all implementations are able
1053 * to, or want to, support the full model. Implementation are
1054 * therefore permitted to reject operations that are not sup-
1055 * ported. For example, the implementation for the UFS file
1056 * system allows only regular files as attributes (for example,
1057 * no sub-directories) and rejects attempts to place attributes
1060 * The following list details the operations that are rejected
1061 * in the current implementation:
1063 * link Any attempt to create links between
1064 * attribute and non-attribute space
1065 * is rejected to prevent security-
1066 * related or otherwise sensitive
1067 * attributes from being exposed, and
1068 * therefore manipulable, as regular
1071 * rename Any attempt to rename between
1072 * attribute and non-attribute space
1073 * is rejected to prevent an already
1074 * linked file from being renamed and
1075 * thereby circumventing the link res-
1078 * mkdir, symlink, mknod Any attempt to create a "non-
1079 * regular" file in attribute space is
1080 * rejected to reduce the functional-
1081 * ity, and therefore exposure and
1082 * risk, of the initial implementa-
1085 * The entire available name space has been allocated to "gen-
1086 * eral use" to bring the implementation in line with the NFSv4
1087 * draft standard [NFSv4]. That standard defines "named attri-
1088 * butes" (equivalent to Solaris Extended Attributes) with no
1089 * naming restrictions. All Sun applications making use of
1090 * opaque extended attributes will use the prefix "SUNW".
1093 #ifdef HAVE_SYS_ATTR_H
1094 #include <sys/attr.h>
1101 #ifdef HAVE_SYS_NVPAIR_H
1102 #include <sys/nvpair.h>
1105 #ifdef HAVE_SYS_ACL_H
1106 #include <sys/acl.h>
1109 #if !defined(HAVE_OPENAT) || \
1110 !defined(HAVE_UNLINKAT) || \
1111 !defined(HAVE_FCHOWNAT) || \
1112 !defined(HAVE_FUTIMESAT)
1113 #error "Unable to compile code because of missing openat, unlinkat, fchownat or futimesat function"
1117 * Define the supported XATTR streams for this OS
1119 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1120 static int os_default_xattr_streams[2] = { STREAM_XATTR_SOLARIS, STREAM_XATTR_SOLARIS_SYS};
1122 static int os_default_xattr_streams[1] = { STREAM_XATTR_SOLARIS };
1123 #endif /* defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED) */
1126 * This code creates a temporary cache with entries for each xattr which has
1127 * a link count > 1 (which indicates it has one or more hard linked counterpart(s))
1129 static xattr_link_cache_entry_t *find_xattr_link_cache_entry(JCR *jcr, ino_t inum)
1131 xattr_link_cache_entry_t *ptr;
1133 foreach_alist(ptr, jcr->xattr_data->link_cache) {
1134 if (ptr && ptr->inum == inum) {
1141 static void add_xattr_link_cache_entry(JCR *jcr, ino_t inum, char *target)
1143 xattr_link_cache_entry_t *ptr;
1145 ptr = (xattr_link_cache_entry_t *)malloc(sizeof(xattr_link_cache_entry_t));
1146 memset((caddr_t)ptr, 0, sizeof(xattr_link_cache_entry_t));
1148 bstrncpy(ptr->target, target, sizeof(ptr->target));
1149 jcr->xattr_data->link_cache->append(ptr);
1152 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1154 * This function returns true if a non default extended system attribute
1155 * list is associated with fd and returns false when an error has occured
1156 * or when only extended system attributes other than archive,
1157 * av_modified or crtime are set.
1159 * The function returns true for the following cases:
1161 * - any extended system attribute other than the default attributes
1162 * ('archive', 'av_modified' and 'crtime') is set
1163 * - nvlist has NULL name string
1164 * - nvpair has data type of 'nvlist'
1165 * - default data type.
1167 static bool solaris_has_non_transient_extensible_attributes(int fd)
1175 bool retval = false;
1177 if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
1182 while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
1183 name = nvpair_name(pair);
1186 fattr = name_to_attr(name);
1192 type = nvpair_type(pair);
1194 case DATA_TYPE_BOOLEAN_VALUE:
1195 if (nvpair_value_boolean_value(pair, &value) != 0) {
1198 if (value && fattr != F_ARCHIVE &&
1199 fattr != F_AV_MODIFIED) {
1204 case DATA_TYPE_UINT64_ARRAY:
1205 if (fattr != F_CRTIME) {
1210 case DATA_TYPE_NVLIST:
1218 if (response != NULL) {
1219 nvlist_free(response);
1223 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1225 #if defined(HAVE_ACL) && !defined(HAVE_EXTENDED_ACL)
1227 * See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
1228 * There is no need to store those acls as we already store the stat bits too.
1230 static bool acl_is_trivial(int count, aclent_t *entries)
1235 for (n = 0; n < count; n++) {
1237 if (!(ace->a_type == USER_OBJ ||
1238 ace->a_type == GROUP_OBJ ||
1239 ace->a_type == OTHER_OBJ ||
1240 ace->a_type == CLASS_OBJ))
1245 #endif /* HAVE_ACL && !HAVE_EXTENDED_ACL */
1247 static bxattr_exit_code solaris_save_xattr_acl(JCR *jcr, int fd, const char *attrname, char **acl_text)
1250 #ifdef HAVE_EXTENDED_ACL
1256 * See if this attribute has an ACL
1258 if ((fd != -1 && fpathconf(fd, _PC_ACL_ENABLED) > 0) ||
1259 pathconf(attrname, _PC_ACL_ENABLED) > 0) {
1261 * See if there is a non trivial acl on the file.
1263 if ((fd != -1 && facl_get(fd, ACL_NO_TRIVIAL, &aclp) != 0) ||
1264 acl_get(attrname, ACL_NO_TRIVIAL, &aclp) != 0) {
1267 return bxattr_exit_ok;
1269 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1270 attrname, jcr->last_fname, be.bstrerror());
1271 Dmsg3(100, "facl_get/acl_get of xattr %s on \"%s\" failed: ERR=%s\n",
1272 attrname, jcr->last_fname, be.bstrerror());
1273 return bxattr_exit_error;
1278 #if defined(ACL_SID_FMT)
1280 * New format flag added in newer Solaris versions.
1282 flags = ACL_APPEND_ID | ACL_COMPACT_FMT | ACL_SID_FMT;
1284 flags = ACL_APPEND_ID | ACL_COMPACT_FMT;
1285 #endif /* ACL_SID_FMT */
1287 *acl_text = acl_totext(aclp, flags);
1295 return bxattr_exit_ok;
1296 #else /* HAVE_EXTENDED_ACL */
1298 aclent_t *acls = NULL;
1302 * See if this attribute has an ACL
1305 n = facl(fd, GETACLCNT, 0, NULL);
1307 n = acl(attrname, GETACLCNT, 0, NULL);
1310 if (n >= MIN_ACL_ENTRIES) {
1311 acls = (aclent_t *)malloc(n * sizeof(aclent_t));
1312 if ((fd != -1 && facl(fd, GETACL, n, acls) != n) ||
1313 acl(attrname, GETACL, n, acls) != n) {
1317 return bxattr_exit_ok;
1319 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
1320 attrname, jcr->last_fname, be.bstrerror());
1321 Dmsg3(100, "facl/acl of xattr %s on \"%s\" failed: ERR=%s\n",
1322 attrname, jcr->last_fname, be.bstrerror());
1324 return bxattr_exit_error;
1329 * See if there is a non trivial acl on the file.
1331 if (!acl_is_trivial(n, acls)) {
1332 if ((*acl_text = acltotext(acls, n)) == NULL) {
1333 Mmsg3(jcr->errmsg, _("Unable to get acl text on xattr %s on file \"%s\": ERR=%s\n"),
1334 attrname, jcr->last_fname, be.bstrerror());
1335 Dmsg3(100, "acltotext of xattr %s on \"%s\" failed: ERR=%s\n",
1336 attrname, jcr->last_fname, be.bstrerror());
1338 return bxattr_exit_error;
1348 return bxattr_exit_ok;
1349 #endif /* HAVE_EXTENDED_ACL */
1351 #else /* HAVE_ACL */
1352 return bxattr_exit_ok;
1353 #endif /* HAVE_ACL */
1357 * Forward declaration for recursive function call.
1359 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent);
1362 * Save an extended or extensible attribute.
1363 * This is stored as an opaque stream of bytes with the following encoding:
1365 * <xattr_name>\0<stat_buffer>\0<acl_string>\0<actual_xattr_data>
1367 * or for a hardlinked or symlinked attribute
1369 * <xattr_name>\0<stat_buffer>\0<xattr_link_source>\0
1371 * xattr_name can be a subpath relative to the file the xattr is on.
1372 * stat_buffer is the string representation of the stat struct.
1373 * acl_string is an acl text when a non trivial acl is set on the xattr.
1374 * actual_xattr_data is the content of the xattr file.
1376 static bxattr_exit_code solaris_save_xattr(JCR *jcr, int fd, const char *xattr_namespace,
1377 const char *attrname, bool toplevel_hidden_dir, int stream)
1382 xattr_link_cache_entry_t *xlce;
1383 char target_attrname[PATH_MAX];
1384 char link_source[PATH_MAX];
1385 char *acl_text = NULL;
1386 char attribs[MAXSTRING];
1387 char buffer[XATTR_BUFSIZ];
1388 bxattr_exit_code retval = bxattr_exit_error;
1391 bsnprintf(target_attrname, sizeof(target_attrname), "%s%s", xattr_namespace, attrname);
1394 * Get the stats of the extended or extensible attribute.
1396 if (fstatat(fd, attrname, &st, AT_SYMLINK_NOFOLLOW) < 0) {
1399 retval = bxattr_exit_ok;
1402 Mmsg3(jcr->errmsg, _("Unable to get status on xattr %s on file \"%s\": ERR=%s\n"),
1403 target_attrname, jcr->last_fname, be.bstrerror());
1404 Dmsg3(100, "fstatat of xattr %s on \"%s\" failed: ERR=%s\n",
1405 target_attrname, jcr->last_fname, be.bstrerror());
1411 * Based on the filetype perform the correct action. We support most filetypes here, more
1412 * then the actual implementation on Solaris supports so some code may never get executed
1413 * due to limitations in the implementation.
1415 switch (st.st_mode & S_IFMT) {
1420 * Get any acl on the xattr.
1422 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1426 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1427 * Encode the stat struct into an ASCII representation.
1429 encode_stat(attribs, &st, 0, stream);
1430 cnt = bsnprintf(buffer, sizeof(buffer), "%s%c%s%c%s%c",
1431 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1435 * Get any acl on the xattr.
1437 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
1441 * See if this is the toplevel_hidden_dir being saved.
1443 if (toplevel_hidden_dir) {
1445 * Save the data for later storage when we encounter a real xattr. We store the data
1446 * in the jcr->xattr_data->content buffer and flush that just before sending out the
1447 * first real xattr. Encode the stat struct into an ASCII representation and jump
1448 * out of the function.
1450 encode_stat(attribs, &st, 0, stream);
1451 cnt = bsnprintf(buffer, sizeof(buffer),
1453 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1454 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1455 jcr->xattr_data->content_length = cnt;
1459 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1460 * Encode the stat struct into an ASCII representation.
1462 encode_stat(attribs, &st, 0, stream);
1463 cnt = bsnprintf(buffer, sizeof(buffer),
1465 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1470 * If this is a hardlinked file check the inode cache for a hit.
1472 if (st.st_nlink > 1) {
1474 * See if the cache already knows this inode number.
1476 if ((xlce = find_xattr_link_cache_entry(jcr, st.st_ino)) != NULL) {
1478 * Generate a xattr encoding with the reference to the target in there.
1480 encode_stat(attribs, &st, st.st_ino, stream);
1481 cnt = bsnprintf(buffer, sizeof(buffer),
1483 target_attrname, 0, attribs, 0, xlce->target, 0);
1484 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1485 jcr->xattr_data->content_length = cnt;
1486 retval = send_xattr_stream(jcr, stream);
1489 * For a hard linked file we are ready now, no need to recursively save the attributes.
1495 * Store this hard linked file in the cache.
1496 * Store the name relative to the top level xattr space.
1498 add_xattr_link_cache_entry(jcr, st.st_ino, target_attrname + 1);
1502 * Get any acl on the xattr.
1504 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok) {
1509 * Encode the stat struct into an ASCII representation.
1511 encode_stat(attribs, &st, 0, stream);
1512 cnt = bsnprintf(buffer, sizeof(buffer),
1514 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1517 * Open the extended or extensible attribute file.
1519 if ((attrfd = openat(fd, attrname, O_RDONLY)) < 0) {
1522 retval = bxattr_exit_ok;
1525 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on \"%s\": ERR=%s\n"),
1526 target_attrname, jcr->last_fname, be.bstrerror());
1527 Dmsg3(100, "openat of xattr %s on \"%s\" failed: ERR=%s\n",
1528 target_attrname, jcr->last_fname, be.bstrerror());
1535 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1536 * Encode the stat struct into an ASCII representation.
1538 if (readlink(attrname, link_source, sizeof(link_source)) < 0) {
1541 retval = bxattr_exit_ok;
1544 Mmsg3(jcr->errmsg, _("Unable to read symlin %s on \"%s\": ERR=%s\n"),
1545 target_attrname, jcr->last_fname, be.bstrerror());
1546 Dmsg3(100, "readlink of xattr %s on \"%s\" failed: ERR=%s\n",
1547 target_attrname, jcr->last_fname, be.bstrerror());
1553 * Generate a xattr encoding with the reference to the target in there.
1555 encode_stat(attribs, &st, st.st_ino, stream);
1556 cnt = bsnprintf(buffer, sizeof(buffer),
1558 target_attrname, 0, attribs, 0, link_source, 0);
1559 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1560 jcr->xattr_data->content_length = cnt;
1561 retval = send_xattr_stream(jcr, stream);
1563 if (retval == bxattr_exit_ok) {
1564 jcr->xattr_data->nr_saved++;
1568 * For a soft linked file we are ready now, no need to recursively save the attributes.
1576 * See if this is the first real xattr being saved.
1577 * If it is save the toplevel_hidden_dir attributes first.
1578 * This is easy as its stored already in the jcr->xattr_data->content buffer.
1580 if (jcr->xattr_data->nr_saved == 0) {
1581 retval = send_xattr_stream(jcr, STREAM_XATTR_SOLARIS);
1582 if (retval != bxattr_exit_ok) {
1585 jcr->xattr_data->nr_saved++;
1588 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1589 jcr->xattr_data->content_length = cnt;
1592 * Only dump the content of regular files.
1594 switch (st.st_mode & S_IFMT) {
1596 if (st.st_size > 0) {
1598 * Protect ourself against things getting out of hand.
1600 if (st.st_size >= MAX_XATTR_STREAM) {
1601 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
1602 jcr->last_fname, MAX_XATTR_STREAM);
1606 while ((cnt = read(attrfd, buffer, sizeof(buffer))) > 0) {
1607 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, jcr->xattr_data->content_length + cnt);
1608 memcpy(jcr->xattr_data->content + jcr->xattr_data->content_length, buffer, cnt);
1609 jcr->xattr_data->content_length += cnt;
1613 Mmsg2(jcr->errmsg, _("Unable to read content of xattr %s on file \"%s\"\n"),
1614 target_attrname, jcr->last_fname);
1615 Dmsg2(100, "read of data from xattr %s on \"%s\" failed\n",
1616 target_attrname, jcr->last_fname);
1627 retval = send_xattr_stream(jcr, stream);
1628 if (retval == bxattr_exit_ok) {
1629 jcr->xattr_data->nr_saved++;
1634 * Recursivly call solaris_save_extended_attributes for archiving the attributes
1635 * available on this extended attribute.
1638 retval = solaris_save_xattrs(jcr, xattr_namespace, attrname);
1641 * The recursive call could change our working dir so change back to the wanted workdir.
1643 if (fchdir(fd) < 0) {
1646 retval = bxattr_exit_ok;
1649 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space of file \"%s\": ERR=%s\n"),
1650 jcr->last_fname, be.bstrerror());
1651 Dmsg3(100, "Unable to fchdir to xattr space of file \"%s\" using fd %d: ERR=%s\n",
1652 jcr->last_fname, fd, be.bstrerror());
1659 if (acl_text != NULL) {
1668 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent)
1671 int fd, filefd = -1, attrdirfd = -1;
1674 char current_xattr_namespace[PATH_MAX];
1675 bxattr_exit_code retval = bxattr_exit_error;
1679 * Determine what argument to use. Use attr_parent when set
1680 * (recursive call) or jcr->last_fname for first call. Also save
1681 * the current depth of the xattr_space we are in.
1685 if (xattr_namespace) {
1686 bsnprintf(current_xattr_namespace, sizeof(current_xattr_namespace), "%s%s/",
1687 xattr_namespace, attr_parent);
1689 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1692 name = jcr->last_fname;
1693 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1697 * Open the file on which to save the xattrs read-only.
1699 if ((filefd = open(name, O_RDONLY | O_NONBLOCK)) < 0) {
1702 retval = bxattr_exit_ok;
1705 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1706 jcr->last_fname, be.bstrerror());
1707 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1708 jcr->last_fname, be.bstrerror());
1714 * Open the xattr naming space.
1716 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1720 * Gentile way of the system saying this type of xattr layering is not supported.
1721 * Which is not problem we just forget about this this xattr.
1722 * But as this is not an error we return a positive return value.
1724 retval = bxattr_exit_ok;
1727 retval = bxattr_exit_ok;
1730 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1731 name, jcr->last_fname, be.bstrerror());
1732 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1733 name, jcr->last_fname, be.bstrerror());
1739 * We need to change into the attribute directory to determine if each of the
1740 * attributes should be saved.
1742 if (fchdir(attrdirfd) < 0) {
1743 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1744 jcr->last_fname, be.bstrerror());
1745 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1746 jcr->last_fname, attrdirfd, be.bstrerror());
1751 * Save the data of the toplevel xattr hidden_dir. We save this one before anything
1752 * else because the readdir returns "." entry after the extensible attr entry.
1753 * And as we want this entry before anything else we better just save its data.
1756 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, ".",
1757 true, STREAM_XATTR_SOLARIS);
1759 if ((fd = dup(attrdirfd)) == -1 ||
1760 (dirp = fdopendir(fd)) == (DIR *)NULL) {
1761 Mmsg2(jcr->errmsg, _("Unable to list the xattr space on file \"%s\": ERR=%s\n"),
1762 jcr->last_fname, be.bstrerror());
1763 Dmsg3(100, "Unable to fdopendir xattr space on file \"%s\" using fd %d: ERR=%s\n",
1764 jcr->last_fname, fd, be.bstrerror());
1770 * Walk the namespace.
1772 while (dp = readdir(dirp)) {
1774 * Skip only the toplevel . dir.
1776 if (!attr_parent && bstrcmp(dp->d_name, "."))
1780 * Skip all .. directories
1782 if (bstrcmp(dp->d_name, ".."))
1785 Dmsg3(400, "processing extended attribute %s%s on file \"%s\"\n",
1786 current_xattr_namespace, dp->d_name, jcr->last_fname);
1788 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1790 * We are not interested in read-only extensible attributes.
1792 if (bstrcmp(dp->d_name, VIEW_READONLY)) {
1793 Dmsg3(400, "Skipping readonly extensible attributes %s%s on file \"%s\"\n",
1794 current_xattr_namespace, dp->d_name, jcr->last_fname);
1800 * We are only interested in read-write extensible attributes
1801 * when they contain non-transient values.
1803 if (bstrcmp(dp->d_name, VIEW_READWRITE)) {
1805 * Determine if there are non-transient system attributes at the toplevel.
1806 * We need to provide a fd to the open file.
1808 if (!solaris_has_non_transient_extensible_attributes(filefd)) {
1809 Dmsg3(400, "Skipping transient extensible attributes %s%s on file \"%s\"\n",
1810 current_xattr_namespace, dp->d_name, jcr->last_fname);
1817 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1818 false, STREAM_XATTR_SOLARIS_SYS);
1821 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1826 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1827 false, STREAM_XATTR_SOLARIS);
1831 retval = bxattr_exit_ok;
1834 if (attrdirfd != -1)
1842 static bxattr_exit_code solaris_restore_xattr_acl(JCR *jcr, int fd, const char *attrname, char *acl_text)
1844 #ifdef HAVE_EXTENDED_ACL
1849 if ((error = acl_fromtext(acl_text, &aclp)) != 0) {
1850 Mmsg1(jcr->errmsg, _("Unable to convert acl from text on file \"%s\"\n"),
1852 return bxattr_exit_error;
1855 if ((fd != -1 && facl_set(fd, aclp) != 0) ||
1856 acl_set(attrname, aclp) != 0) {
1857 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1858 attrname, jcr->last_fname, be.bstrerror());
1859 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1860 attrname, jcr->last_fname, be.bstrerror());
1861 return bxattr_exit_error;
1867 return bxattr_exit_ok;
1869 #else /* HAVE_EXTENDED_ACL */
1871 aclent_t *acls = NULL;
1874 acls = aclfromtext(acl_text, &n);
1876 if ((fd != -1 && facl(fd, SETACL, n, acls) != 0) ||
1877 acl(attrname, SETACL, n, acls) != 0) {
1878 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1879 attrname, jcr->last_fname, be.bstrerror());
1880 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1881 attrname, jcr->last_fname, be.bstrerror());
1882 return bxattr_exit_error;
1889 return bxattr_exit_ok;
1891 #endif /* HAVE_EXTENDED_ACL */
1894 #endif /* HAVE_ACL */
1896 static bxattr_exit_code solaris_restore_xattrs(JCR *jcr, bool is_extensible)
1898 int fd, filefd = -1, attrdirfd = -1, attrfd = -1;
1899 int used_bytes, total_bytes, cnt;
1900 char *bp, *target_attrname, *attribs;
1901 char *linked_target = NULL;
1902 char *acl_text = NULL;
1906 struct timeval times[2];
1907 bxattr_exit_code retval = bxattr_exit_error;
1911 * Parse the xattr stream. First the part that is the same for all xattrs.
1914 total_bytes = jcr->xattr_data->content_length;
1917 * The name of the target xattr has a leading / we are not interested
1918 * in that so skip it when decoding the string. We always start a the /
1919 * of the xattr space anyway.
1921 target_attrname = jcr->xattr_data->content + 1;
1922 if ((bp = strchr(target_attrname, '\0')) == (char *)NULL ||
1923 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1929 * Open the file on which to restore the xattrs read-only.
1931 if ((filefd = open(jcr->last_fname, O_RDONLY | O_NONBLOCK)) < 0) {
1932 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1933 jcr->last_fname, be.bstrerror());
1934 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1935 jcr->last_fname, be.bstrerror());
1940 * Open the xattr naming space and make it the current working dir.
1942 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1943 Mmsg2(jcr->errmsg, _("Unable to open xattr space on file \"%s\": ERR=%s\n"),
1944 jcr->last_fname, be.bstrerror());
1945 Dmsg2(100, "Unable to open xattr space on file \"%s\": ERR=%s\n",
1946 jcr->last_fname, be.bstrerror());
1950 if (fchdir(attrdirfd) < 0) {
1951 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1952 jcr->last_fname, be.bstrerror());
1953 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1954 jcr->last_fname, attrdirfd, be.bstrerror());
1959 * Try to open the correct xattr subdir based on the target_attrname given.
1960 * e.g. check if its a subdir attrname. Each / in the string makes us go
1963 while ((bp = strchr(target_attrname, '/')) != (char *)NULL) {
1966 if ((fd = open(target_attrname, O_RDONLY | O_NONBLOCK)) < 0) {
1967 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1968 target_attrname, jcr->last_fname, be.bstrerror());
1969 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1970 target_attrname, jcr->last_fname, be.bstrerror());
1978 * Open the xattr naming space.
1980 if ((fd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1981 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1982 target_attrname, jcr->last_fname, be.bstrerror());
1983 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1984 target_attrname, jcr->last_fname, be.bstrerror());
1992 * Make the xattr space our current workingdir.
1994 if (fchdir(attrdirfd) < 0) {
1995 Mmsg3(jcr->errmsg, _("Unable to chdir to xattr space %s on file \"%s\": ERR=%s\n"),
1996 target_attrname, jcr->last_fname, be.bstrerror());
1997 Dmsg4(100, "Unable to fchdir to xattr space %s on file \"%s\" using fd %d: ERR=%s\n",
1998 target_attrname, jcr->last_fname, attrdirfd, be.bstrerror());
2002 target_attrname = ++bp;
2006 * Decode the attributes from the stream.
2008 decode_stat(attribs, &st, &inum);
2011 * Decode the next field (acl_text).
2013 if ((bp = strchr(attribs, '\0')) == (char *)NULL ||
2014 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
2020 * Based on the filetype perform the correct action. We support most filetypes here, more
2021 * then the actual implementation on Solaris supports so some code may never get executed
2022 * due to limitations in the implementation.
2024 switch (st.st_mode & S_IFMT) {
2027 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2029 unlinkat(attrdirfd, target_attrname, 0);
2030 if (mkfifo(target_attrname, st.st_mode) < 0) {
2031 Mmsg3(jcr->errmsg, _("Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n"),
2032 target_attrname, jcr->last_fname, be.bstrerror());
2033 Dmsg3(100, "Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n",
2034 target_attrname, jcr->last_fname, be.bstrerror());
2041 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2043 unlinkat(attrdirfd, target_attrname, 0);
2044 if (mknod(target_attrname, st.st_mode, st.st_rdev) < 0) {
2045 Mmsg3(jcr->errmsg, _("Unable to mknod xattr %s on file \"%s\": ERR=%s\n"),
2046 target_attrname, jcr->last_fname, be.bstrerror());
2047 Dmsg3(100, "Unable to mknod xattr %s on file \"%s\": ERR=%s\n",
2048 target_attrname, jcr->last_fname, be.bstrerror());
2054 * If its not the hidden_dir create the entry.
2055 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2057 if (!bstrcmp(target_attrname, ".")) {
2058 unlinkat(attrdirfd, target_attrname, AT_REMOVEDIR);
2059 if (mkdir(target_attrname, st.st_mode) < 0) {
2060 Jmsg3(jcr, M_WARNING, 0, _("Unable to mkdir xattr %s on file \"%s\": ERR=%s\n"),
2061 target_attrname, jcr->last_fname, be.bstrerror());
2062 Dmsg3(100, "Unable to mkdir xattr %s on file \"%s\": ERR=%s\n",
2063 target_attrname, jcr->last_fname, be.bstrerror());
2070 * See if this is a hard linked file. e.g. inum != 0
2075 unlinkat(attrdirfd, target_attrname, 0);
2076 if (link(linked_target, target_attrname) < 0) {
2077 Mmsg4(jcr->errmsg, _("Unable to link xattr %s to %s on file \"%s\": ERR=%s\n"),
2078 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2079 Dmsg4(100, "Unable to link xattr %s to %s on file \"%s\": ERR=%s\n",
2080 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2085 * Successfully restored xattr.
2087 retval = bxattr_exit_ok;
2090 if ((bp = strchr(acl_text, '\0')) == (char *)NULL ||
2091 (used_bytes = (bp - jcr->xattr_data->content)) >= total_bytes) {
2095 if (used_bytes < (total_bytes - 1))
2099 * Restore the actual xattr.
2101 if (!is_extensible) {
2102 unlinkat(attrdirfd, target_attrname, 0);
2105 if ((attrfd = openat(attrdirfd, target_attrname, O_RDWR | O_CREAT | O_TRUNC, st.st_mode)) < 0) {
2106 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
2107 target_attrname, jcr->last_fname, be.bstrerror());
2108 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
2109 target_attrname, jcr->last_fname, be.bstrerror());
2115 * Restore the actual data.
2117 if (st.st_size > 0) {
2118 used_bytes = (data - jcr->xattr_data->content);
2119 cnt = total_bytes - used_bytes;
2122 * Do a sanity check, the st.st_size should be the same as the number of bytes
2123 * we have available as data of the stream.
2125 if (cnt != st.st_size) {
2126 Mmsg2(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n"),
2127 target_attrname, jcr->last_fname);
2128 Dmsg2(100, "Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n",
2129 target_attrname, jcr->last_fname);
2134 cnt = write(attrfd, data, cnt);
2136 Mmsg3(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": ERR=%s\n"),
2137 target_attrname, jcr->last_fname, be.bstrerror());
2138 Dmsg3(100, "Unable to restore data of xattr %s on file \"%s\": ERR=%s\n",
2139 target_attrname, jcr->last_fname, be.bstrerror());
2145 cnt = total_bytes - used_bytes;
2151 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
2155 if (symlink(linked_target, target_attrname) < 0) {
2156 Mmsg4(jcr->errmsg, _("Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n"),
2157 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2158 Dmsg4(100, "Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n",
2159 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
2164 * Successfully restored xattr.
2166 retval = bxattr_exit_ok;
2173 * Restore owner and acl for non extensible attributes.
2175 if (!is_extensible) {
2176 if (fchownat(attrdirfd, target_attrname, st.st_uid, st.st_gid, AT_SYMLINK_NOFOLLOW) < 0) {
2180 * Gentile way of the system saying this type of xattr layering is not supported.
2181 * But as this is not an error we return a positive return value.
2183 retval = bxattr_exit_ok;
2186 retval = bxattr_exit_ok;
2189 Mmsg3(jcr->errmsg, _("Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n"),
2190 target_attrname, jcr->last_fname, be.bstrerror());
2191 Dmsg3(100, "Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n",
2192 target_attrname, jcr->last_fname, be.bstrerror());
2199 if (acl_text && *acl_text)
2200 if (solaris_restore_xattr_acl(jcr, attrfd, target_attrname, acl_text) != bxattr_exit_ok)
2202 #endif /* HAVE_ACL */
2205 * For a non extensible attribute restore access and modification time on the xattr.
2207 if (!is_extensible) {
2208 times[0].tv_sec = st.st_atime;
2209 times[0].tv_usec = 0;
2210 times[1].tv_sec = st.st_mtime;
2211 times[1].tv_usec = 0;
2213 if (futimesat(attrdirfd, target_attrname, times) < 0) {
2214 Mmsg3(jcr->errmsg, _("Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n"),
2215 target_attrname, jcr->last_fname, be.bstrerror());
2216 Dmsg3(100, "Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n",
2217 target_attrname, jcr->last_fname, be.bstrerror());
2223 * Successfully restored xattr.
2225 retval = bxattr_exit_ok;
2229 Mmsg1(jcr->errmsg, _("Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n"),
2231 Dmsg1(100, "Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n",
2238 if (attrdirfd != -1) {
2247 static bxattr_exit_code solaris_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2250 bxattr_exit_code retval = bxattr_exit_ok;
2253 * First see if extended attributes or extensible attributes are present.
2254 * If not just pretend things went ok.
2256 if (pathconf(jcr->last_fname, _PC_XATTR_EXISTS) > 0) {
2257 jcr->xattr_data->nr_saved = 0;
2258 jcr->xattr_data->link_cache = New(alist(10, not_owned_by_alist));
2261 * As we change the cwd in the save function save the current cwd
2262 * for restore after return from the solaris_save_xattrs function.
2264 getcwd(cwd, sizeof(cwd));
2265 retval = solaris_save_xattrs(jcr, NULL, NULL);
2267 delete jcr->xattr_data->link_cache;
2268 jcr->xattr_data->link_cache = NULL;
2273 static bxattr_exit_code solaris_parse_xattr_streams(JCR *jcr, int stream)
2276 bool is_extensible = false;
2277 bxattr_exit_code retval;
2280 * First make sure we can restore xattr on the filesystem.
2283 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
2284 case STREAM_XATTR_SOLARIS_SYS:
2285 if (pathconf(jcr->last_fname, _PC_SATTR_ENABLED) <= 0) {
2286 Mmsg1(jcr->errmsg, _("Failed to restore extensible attributes on file \"%s\"\n"), jcr->last_fname);
2287 Dmsg1(100, "Unable to restore extensible attributes on file \"%s\", filesystem doesn't support this\n",
2289 return bxattr_exit_error;
2292 is_extensible = true;
2295 case STREAM_XATTR_SOLARIS:
2296 if (pathconf(jcr->last_fname, _PC_XATTR_ENABLED) <= 0) {
2297 Mmsg1(jcr->errmsg, _("Failed to restore extended attributes on file \"%s\"\n"), jcr->last_fname);
2298 Dmsg1(100, "Unable to restore extended attributes on file \"%s\", filesystem doesn't support this\n",
2300 return bxattr_exit_error;
2304 return bxattr_exit_error;
2308 * As we change the cwd in the restore function save the current cwd
2309 * for restore after return from the solaris_restore_xattrs function.
2311 getcwd(cwd, sizeof(cwd));
2312 retval = solaris_restore_xattrs(jcr, is_extensible);
2319 * Function pointers to the build and parse function to use for these xattrs.
2321 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = solaris_build_xattr_streams;
2322 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = solaris_parse_xattr_streams;
2324 #endif /* defined(HAVE_SUN_OS) */
2327 * Entry points when compiled with support for XATTRs on a supported platform.
2329 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
2331 if (os_build_xattr_streams) {
2332 return (*os_build_xattr_streams)(jcr, ff_pkt);
2334 return bxattr_exit_error;
2337 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
2341 if (os_parse_xattr_streams) {
2343 * See if we can parse this stream, and ifso give it a try.
2345 for (cnt = 0; cnt < sizeof(os_default_xattr_streams) / sizeof(int); cnt++) {
2346 if (os_default_xattr_streams[cnt] == stream) {
2347 return (*os_parse_xattr_streams)(jcr, stream);
2352 * Issue a warning and discard the message. But pretend the restore was ok.
2354 Jmsg2(jcr, M_WARNING, 0,
2355 _("Can't restore Extended Attributes of %s - incompatible xattr stream encountered - %d\n"),
2356 jcr->last_fname, stream);
2357 return bxattr_exit_error;