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 * - FreeBSD (Extended Attributes)
36 * - Darwin (Extended Attributes)
37 * - Linux (Extended Attributes)
38 * - NetBSD (Extended Attributes)
39 * - Solaris (Extended Attributes and Extensible Attributes)
41 * Written by Marco van Wieringen, November MMVIII
49 #if !defined(HAVE_XATTR)
51 * Entry points when compiled without support for XATTRs or on an unsupported platform.
53 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
55 return bxattr_exit_fatal;
58 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
60 return bxattr_exit_fatal;
64 * Send a XATTR stream to the SD.
66 static bxattr_exit_code send_xattr_stream(JCR *jcr, int stream)
68 BSOCK *sd = jcr->store_bsock;
70 #ifdef FD_NO_SEND_TEST
71 return bxattr_exit_ok;
77 if (jcr->xattr_data->content_length <= 0) {
78 return bxattr_exit_ok;
84 if (!sd->fsend("%ld %d 0", jcr->JobFiles, stream)) {
85 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
87 return bxattr_exit_fatal;
91 * Send the buffer to the storage deamon
93 Dmsg1(400, "Backing up XATTR <%s>\n", jcr->xattr_data->content);
95 sd->msg = jcr->xattr_data->content;
96 sd->msglen = jcr->xattr_data->content_length;
100 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
102 return bxattr_exit_fatal;
105 jcr->JobBytes += sd->msglen;
107 if (!sd->signal(BNET_EOD)) {
108 Jmsg1(jcr, M_FATAL, 0, _("Network send error to SD. ERR=%s\n"),
110 return bxattr_exit_fatal;
112 Dmsg1(200, "XATTR of file: %s successfully backed up!\n", jcr->last_fname);
113 return bxattr_exit_ok;
117 * This is a supported OS, See what kind of interface we should use.
118 * Start with the generic interface used by most OS-es.
120 #if defined(HAVE_DARWIN_OS) || \
121 defined(HAVE_FREEBSD_OS) || \
122 defined(HAVE_LINUX_OS) || \
123 defined(HAVE_NETBSD_OS)
125 #ifdef HAVE_SYS_XATTR_H
126 #include <sys/xattr.h>
130 * Define the supported XATTR streams for this OS
132 #if defined(HAVE_DARWIN_OS)
133 static int os_default_xattr_streams[1] = { STREAM_XATTR_DARWIN };
134 #elif defined(HAVE_FREEBSD_OS)
135 static int os_default_xattr_streams[1] = { STREAM_XATTR_FREEBSD };
136 #elif defined(HAVE_LINUX_OS)
137 static int os_default_xattr_streams[1] = { STREAM_XATTR_LINUX };
138 #elif defined(HAVE_NETBSD_OS)
139 static int os_default_xattr_streams[1] = { STREAM_XATTR_NETBSD };
143 * OSX doesn't have llistxattr, lgetxattr and lsetxattr but has
144 * listxattr, getxattr and setxattr with an extra options argument
145 * which mimics the l variants of the functions when we specify
146 * XATTR_NOFOLLOW as the options value.
148 #if defined(HAVE_DARWIN_OS)
149 #define llistxattr(path, list, size) listxattr((path), (list), (size), XATTR_NOFOLLOW)
150 #define lgetxattr(path, name, value, size) getxattr((path), (name), (value), (size), 0, XATTR_NOFOLLOW)
151 #define lsetxattr(path, name, value, size, flags) setxattr((path), (name), (value), (size), (flags), XATTR_NOFOLLOW)
154 * Fallback to the non l-functions when those are not available.
156 #if defined(HAVE_GETXATTR) && !defined(HAVE_LGETXATTR)
157 #define lgetxattr getxattr
159 #if defined(HAVE_SETXATTR) && !defined(HAVE_LSETXATTR)
160 #define lsetxattr setxattr
162 #if defined(HAVE_LISTXATTR) && !defined(HAVE_LLISTXATTR)
163 #define llistxattr listxattr
167 static void xattr_drop_internal_table(xattr_t *xattr_value_list)
169 xattr_t *current_xattr;
172 * Walk the list of xattrs and free allocated memory on traversing.
174 for (current_xattr = xattr_value_list;
175 current_xattr != (xattr_t *)NULL;
178 * See if we can shortcut.
180 if (current_xattr->magic != XATTR_MAGIC)
183 free(current_xattr->name);
185 if (current_xattr->value_length > 0)
186 free(current_xattr->value);
190 * Free the array of control structs.
192 free(xattr_value_list);
196 * The xattr stream for OSX, FreeBSD, Linux and NetBSD is a serialized stream of bytes
197 * which encodes one or more xattr_t structures.
199 * The Serialized stream consists of the following elements:
200 * magic - A magic string which makes it easy to detect any binary incompatabilites
201 * name_length - The length of the following xattr name
202 * name - The name of the extended attribute
203 * value_length - The length of the following xattr data
204 * value - The actual content of the extended attribute
206 * This is repeated 1 or more times.
209 static uint32_t serialize_xattr_stream(JCR *jcr, uint32_t expected_serialize_len, xattr_t *xattr_value_list)
211 xattr_t *current_xattr;
215 * Make sure the serialized stream fits in the poolmem buffer.
216 * We allocate some more to be sure the stream is gonna fit.
218 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, expected_serialize_len + 10);
219 ser_begin(jcr->xattr_data->content, expected_serialize_len + 10);
222 * Walk the list of xattrs and serialize the data.
224 for (current_xattr = xattr_value_list; current_xattr != (xattr_t *)NULL; current_xattr++) {
226 * See if we can shortcut.
228 if (current_xattr->magic != XATTR_MAGIC)
231 ser_uint32(current_xattr->magic);
232 ser_uint32(current_xattr->name_length);
233 ser_bytes(current_xattr->name, current_xattr->name_length);
235 ser_uint32(current_xattr->value_length);
236 ser_bytes(current_xattr->value, current_xattr->value_length);
239 ser_end(jcr->xattr_data->content, expected_serialize_len + 10);
240 jcr->xattr_data->content_length = ser_length(jcr->xattr_data->content);
241 return jcr->xattr_data->content_length;
244 static bxattr_exit_code generic_xattr_build_streams(JCR *jcr, FF_PKT *ff_pkt)
247 int32_t xattr_list_len,
249 uint32_t expected_serialize_len = 0;
250 char *xattr_list, *bp;
251 xattr_t *xattr_value_list = NULL, *current_xattr;
252 bxattr_exit_code retval = bxattr_exit_error;
256 * First get the length of the available list with extended attributes.
258 xattr_list_len = llistxattr(jcr->last_fname, NULL, 0);
259 if (xattr_list_len < 0) {
262 return bxattr_exit_ok;
264 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
265 jcr->last_fname, be.bstrerror());
266 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
267 jcr->last_fname, be.bstrerror());
268 return bxattr_exit_error;
270 } else if (xattr_list_len == 0) {
271 return bxattr_exit_ok;
275 * Allocate room for the extented attribute list.
277 xattr_list = (char *)malloc(xattr_list_len + 1);
278 memset((caddr_t)xattr_list, 0, xattr_list_len + 1);
281 * Get the actual list of extended attributes names for a file.
283 xattr_list_len = llistxattr(jcr->last_fname, xattr_list, xattr_list_len);
284 if (xattr_list_len < 0) {
287 retval = bxattr_exit_ok;
290 Mmsg2(jcr->errmsg, _("llistxattr error on file \"%s\": ERR=%s\n"),
291 jcr->last_fname, be.bstrerror());
292 Dmsg2(100, "llistxattr error file=%s ERR=%s\n",
293 jcr->last_fname, be.bstrerror());
297 xattr_list[xattr_list_len] = '\0';
300 * Count the number of extended attributes on a file.
303 while ((bp - xattr_list) + 1 < xattr_list_len) {
304 #if defined(HAVE_LINUX_OS)
306 * On Linux you also get the acls in the extented attribute list.
307 * So we check if we are already backing up acls and if we do we
308 * don't store the extended attribute with the same info.
310 if ((ff_pkt->flags & FO_ACL) == 0 || strcmp(bp, "system.posix_acl_access"))
316 bp = strchr(bp, '\0') + 1;
320 retval = bxattr_exit_ok;
325 * Allocate enough room to hold all extended attributes.
326 * After allocating the storage make sure its empty by zeroing it.
328 xattr_value_list = (xattr_t *)malloc(count * sizeof(xattr_t));
329 memset((caddr_t)xattr_value_list, 0, count * sizeof(xattr_t));
332 * Walk the list of extended attributes names and retrieve the data.
333 * We already count the bytes needed for serializing the stream later on.
335 current_xattr = xattr_value_list;
337 while ((bp - xattr_list) + 1 < xattr_list_len) {
338 #if defined(HAVE_LINUX_OS)
340 * On Linux you also get the acls in the extented attribute list.
341 * So we check if we are already backing up acls and if we do we
342 * don't store the extended attribute with the same info.
344 if (ff_pkt->flags & FO_ACL && !strcmp(bp, "system.posix_acl_access")) {
345 bp = strchr(bp, '\0') + 1;
351 * Each xattr valuepair starts with a magic so we can parse it easier.
353 current_xattr->magic = XATTR_MAGIC;
354 expected_serialize_len += sizeof(current_xattr->magic);
357 * Allocate space for storing the name.
359 current_xattr->name_length = strlen(bp);
360 current_xattr->name = (char *)malloc(current_xattr->name_length);
361 memcpy((caddr_t)current_xattr->name, (caddr_t)bp, current_xattr->name_length);
363 expected_serialize_len += sizeof(current_xattr->name_length) + current_xattr->name_length;
366 * First see how long the value is for the extended attribute.
368 xattr_value_len = lgetxattr(jcr->last_fname, bp, NULL, 0);
369 if (xattr_value_len < 0) {
372 retval = bxattr_exit_ok;
375 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
376 jcr->last_fname, be.bstrerror());
377 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
378 jcr->last_fname, be.bstrerror());
384 * Allocate space for storing the value.
386 current_xattr->value = (char *)malloc(xattr_value_len);
387 memset((caddr_t)current_xattr->value, 0, xattr_value_len);
389 xattr_value_len = lgetxattr(jcr->last_fname, bp, current_xattr->value, xattr_value_len);
390 if (xattr_value_len < 0) {
393 retval = bxattr_exit_ok;
396 Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
397 jcr->last_fname, be.bstrerror());
398 Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
399 jcr->last_fname, be.bstrerror());
405 * Store the actual length of the value.
407 current_xattr->value_length = xattr_value_len;
408 expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
411 * Protect ourself against things getting out of hand.
413 if (expected_serialize_len >= MAX_XATTR_STREAM) {
414 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
415 jcr->last_fname, MAX_XATTR_STREAM);
423 bp = strchr(bp, '\0') + 1;
427 * Serialize the datastream.
429 if (serialize_xattr_stream(jcr, expected_serialize_len, xattr_value_list) < expected_serialize_len) {
430 Mmsg1(jcr->errmsg, _("Failed to serialize extended attributes on file \"%s\"\n"),
432 Dmsg1(100, "Failed to serialize extended attributes on file \"%s\"\n",
437 xattr_drop_internal_table(xattr_value_list);
441 * Send the datastream to the SD.
443 return send_xattr_stream(jcr, os_default_xattr_streams[0]);
446 if (xattr_value_list) {
447 xattr_drop_internal_table(xattr_value_list);
453 static bxattr_exit_code generic_xattr_parse_streams(JCR *jcr, int stream)
456 xattr_t current_xattr;
457 bxattr_exit_code retval = bxattr_exit_ok;
461 * Parse the stream and perform the setxattr calls on the file.
463 * Start unserializing the data. We keep on looping while we have not
464 * unserialized all bytes in the stream.
466 unser_begin(jcr->xattr_data->content, jcr->xattr_data->content_length);
467 while (unser_length(jcr->xattr_data->content) < jcr->xattr_data->content_length) {
469 * First make sure the magic is present. This way we can easily catch corruption.
470 * Any missing MAGIC is fatal we do NOT try to continue.
472 unser_uint32(current_xattr.magic);
473 if (current_xattr.magic != XATTR_MAGIC) {
474 Mmsg1(jcr->errmsg, _("Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n"),
476 Dmsg1(100, "Illegal xattr stream, no XATTR_MAGIC on file \"%s\"\n",
478 return bxattr_exit_error;
482 * Decode the valuepair. First decode the length of the name.
484 unser_uint32(current_xattr.name_length);
487 * Allocate room for the name and decode its content.
489 current_xattr.name = (char *)malloc(current_xattr.name_length + 1);
490 unser_bytes(current_xattr.name, current_xattr.name_length);
493 * The xattr_name needs to be null terminated for lsetxattr.
495 current_xattr.name[current_xattr.name_length] = '\0';
498 * Decode the value length.
500 unser_uint32(current_xattr.value_length);
503 * Allocate room for the value and decode its content.
505 current_xattr.value = (char *)malloc(current_xattr.value_length);
506 unser_bytes(current_xattr.value, current_xattr.value_length);
509 * Try to set the extended attribute on the file.
510 * If we fail to set this attribute we flag the error but its not fatal,
511 * we try to restore the other extended attributes too.
513 if (lsetxattr(jcr->last_fname, current_xattr.name, current_xattr.value,
514 current_xattr.value_length, 0) != 0) {
519 Mmsg2(jcr->errmsg, _("lsetxattr error on file \"%s\": ERR=%s\n"),
520 jcr->last_fname, be.bstrerror());
521 Dmsg2(100, "lsetxattr error file=%s ERR=%s\n",
522 jcr->last_fname, be.bstrerror());
523 retval = bxattr_exit_error;
529 * Free the temporary buffers.
531 free(current_xattr.name);
532 free(current_xattr.value);
535 unser_end(jcr->xattr_data->content, jcr->xattr_data->content_length);
540 * For all these os-es setup the build and parse function pointer to the generic functions.
542 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = generic_xattr_build_streams;
543 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = generic_xattr_parse_streams;
545 #elif defined(HAVE_SUN_OS)
547 * Solaris extended attributes were introduced in Solaris 9
550 * Solaris extensible attributes were introduced in OpenSolaris
551 * by PSARC 2007/315 Solaris extensible attributes are also
552 * sometimes called extended system attributes.
554 * man fsattr(5) on Solaris gives a wealth of info. The most
555 * important bits are:
557 * Attributes are logically supported as files within the file
558 * system. The file system is therefore augmented with an
559 * orthogonal name space of file attributes. Any file (includ-
560 * ing attribute files) can have an arbitrarily deep attribute
561 * tree associated with it. Attribute values are accessed by
562 * file descriptors obtained through a special attribute inter-
563 * face. This logical view of "attributes as files" allows the
564 * leveraging of existing file system interface functionality
565 * to support the construction, deletion, and manipulation of
568 * The special files "." and ".." retain their accustomed
569 * semantics within the attribute hierarchy. The "." attribute
570 * file refers to the current directory and the ".." attribute
571 * file refers to the parent directory. The unnamed directory
572 * at the head of each attribute tree is considered the "child"
573 * of the file it is associated with and the ".." file refers
574 * to the associated file. For any non-directory file with
575 * attributes, the ".." entry in the unnamed directory refers
576 * to a file that is not a directory.
578 * Conceptually, the attribute model is fully general. Extended
579 * attributes can be any type of file (doors, links, direc-
580 * tories, and so forth) and can even have their own attributes
581 * (fully recursive). As a result, the attributes associated
582 * with a file could be an arbitrarily deep directory hierarchy
583 * where each attribute could have an equally complex attribute
584 * tree associated with it. Not all implementations are able
585 * to, or want to, support the full model. Implementation are
586 * therefore permitted to reject operations that are not sup-
587 * ported. For example, the implementation for the UFS file
588 * system allows only regular files as attributes (for example,
589 * no sub-directories) and rejects attempts to place attributes
592 * The following list details the operations that are rejected
593 * in the current implementation:
595 * link Any attempt to create links between
596 * attribute and non-attribute space
597 * is rejected to prevent security-
598 * related or otherwise sensitive
599 * attributes from being exposed, and
600 * therefore manipulable, as regular
603 * rename Any attempt to rename between
604 * attribute and non-attribute space
605 * is rejected to prevent an already
606 * linked file from being renamed and
607 * thereby circumventing the link res-
610 * mkdir, symlink, mknod Any attempt to create a "non-
611 * regular" file in attribute space is
612 * rejected to reduce the functional-
613 * ity, and therefore exposure and
614 * risk, of the initial implementa-
617 * The entire available name space has been allocated to "gen-
618 * eral use" to bring the implementation in line with the NFSv4
619 * draft standard [NFSv4]. That standard defines "named attri-
620 * butes" (equivalent to Solaris Extended Attributes) with no
621 * naming restrictions. All Sun applications making use of
622 * opaque extended attributes will use the prefix "SUNW".
625 #ifdef HAVE_SYS_ATTR_H
626 #include <sys/attr.h>
633 #ifdef HAVE_SYS_NVPAIR_H
634 #include <sys/nvpair.h>
637 #ifdef HAVE_SYS_ACL_H
642 * Define the supported XATTR streams for this OS
644 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
645 static int os_default_xattr_streams[2] = { STREAM_XATTR_SOLARIS, STREAM_XATTR_SOLARIS_SYS};
647 static int os_default_xattr_streams[1] = { STREAM_XATTR_SOLARIS };
648 #endif /* defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED) */
651 * This code creates a temporary cache with entries for each xattr which has
652 * a link count > 1 (which indicates it has one or more hard linked counterpart(s))
654 static xattr_link_cache_entry_t *find_xattr_link_cache_entry(JCR *jcr, ino_t inum)
656 xattr_link_cache_entry_t *ptr;
658 foreach_alist(ptr, jcr->xattr_data->link_cache) {
659 if (ptr && ptr->inum == inum) {
666 static void add_xattr_link_cache_entry(JCR *jcr, ino_t inum, char *target)
668 xattr_link_cache_entry_t *ptr;
670 ptr = (xattr_link_cache_entry_t *)malloc(sizeof(xattr_link_cache_entry_t));
671 memset((caddr_t)ptr, 0, sizeof(xattr_link_cache_entry_t));
673 bstrncpy(ptr->target, target, sizeof(ptr->target));
674 jcr->xattr_data->link_cache->append(ptr);
677 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
679 * This function returns true if a non default extended system attribute
680 * list is associated with fd and returns false when an error has occured
681 * or when only extended system attributes other than archive,
682 * av_modified or crtime are set.
684 * The function returns true for the following cases:
686 * - any extended system attribute other than the default attributes
687 * ('archive', 'av_modified' and 'crtime') is set
688 * - nvlist has NULL name string
689 * - nvpair has data type of 'nvlist'
690 * - default data type.
692 static bool solaris_has_non_transient_extensible_attributes(int fd)
702 if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
707 while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
708 name = nvpair_name(pair);
711 fattr = name_to_attr(name);
717 type = nvpair_type(pair);
719 case DATA_TYPE_BOOLEAN_VALUE:
720 if (nvpair_value_boolean_value(pair, &value) != 0) {
723 if (value && fattr != F_ARCHIVE &&
724 fattr != F_AV_MODIFIED) {
729 case DATA_TYPE_UINT64_ARRAY:
730 if (fattr != F_CRTIME) {
735 case DATA_TYPE_NVLIST:
743 if (response != NULL) {
744 nvlist_free(response);
748 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
750 #if defined(HAVE_ACL) && !defined(HAVE_EXTENDED_ACL)
752 * See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
753 * There is no need to store those acls as we already store the stat bits too.
755 static bool acl_is_trivial(int count, aclent_t *entries)
760 for (n = 0; n < count; n++) {
762 if (!(ace->a_type == USER_OBJ ||
763 ace->a_type == GROUP_OBJ ||
764 ace->a_type == OTHER_OBJ ||
765 ace->a_type == CLASS_OBJ))
770 #endif /* HAVE_ACL && !HAVE_EXTENDED_ACL */
772 static bxattr_exit_code solaris_save_xattr_acl(JCR *jcr, int fd, const char *attrname, char **acl_text)
775 #ifdef HAVE_EXTENDED_ACL
781 * See if this attribute has an ACL
783 if ((fd != -1 && fpathconf(fd, _PC_ACL_ENABLED) > 0) ||
784 pathconf(attrname, _PC_ACL_ENABLED) > 0) {
786 * See if there is a non trivial acl on the file.
788 if ((fd != -1 && facl_get(fd, ACL_NO_TRIVIAL, &aclp) != 0) ||
789 acl_get(attrname, ACL_NO_TRIVIAL, &aclp) != 0) {
792 return bxattr_exit_ok;
794 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
795 attrname, jcr->last_fname, be.bstrerror());
796 Dmsg3(100, "facl_get/acl_get of xattr %s on \"%s\" failed: ERR=%s\n",
797 attrname, jcr->last_fname, be.bstrerror());
798 return bxattr_exit_error;
803 #if defined(ACL_SID_FMT)
805 * New format flag added in newer Solaris versions.
807 flags = ACL_APPEND_ID | ACL_COMPACT_FMT | ACL_SID_FMT;
809 flags = ACL_APPEND_ID | ACL_COMPACT_FMT;
810 #endif /* ACL_SID_FMT */
812 *acl_text = acl_totext(aclp, flags);
820 return bxattr_exit_ok;
821 #else /* HAVE_EXTENDED_ACL */
823 aclent_t *acls = NULL;
827 * See if this attribute has an ACL
830 n = facl(fd, GETACLCNT, 0, NULL);
832 n = acl(attrname, GETACLCNT, 0, NULL);
835 if (n >= MIN_ACL_ENTRIES) {
836 acls = (aclent_t *)malloc(n * sizeof(aclent_t));
837 if ((fd != -1 && facl(fd, GETACL, n, acls) != n) ||
838 acl(attrname, GETACL, n, acls) != n) {
842 return bxattr_exit_ok;
844 Mmsg3(jcr->errmsg, _("Unable to get acl on xattr %s on file \"%s\": ERR=%s\n"),
845 attrname, jcr->last_fname, be.bstrerror());
846 Dmsg3(100, "facl/acl of xattr %s on \"%s\" failed: ERR=%s\n",
847 attrname, jcr->last_fname, be.bstrerror());
849 return bxattr_exit_error;
854 * See if there is a non trivial acl on the file.
856 if (!acl_is_trivial(n, acls)) {
857 if ((*acl_text = acltotext(acls, n)) == NULL) {
858 Mmsg3(jcr->errmsg, _("Unable to get acl text on xattr %s on file \"%s\": ERR=%s\n"),
859 attrname, jcr->last_fname, be.bstrerror());
860 Dmsg3(100, "acltotext of xattr %s on \"%s\" failed: ERR=%s\n",
861 attrname, jcr->last_fname, be.bstrerror());
863 return bxattr_exit_error;
873 return bxattr_exit_ok;
874 #endif /* HAVE_EXTENDED_ACL */
877 return bxattr_exit_ok;
878 #endif /* HAVE_ACL */
882 * Forward declaration for recursive function call.
884 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent);
887 * Save an extended or extensible attribute.
888 * This is stored as an opaque stream of bytes with the following encoding:
890 * <xattr_name>\0<stat_buffer>\0<acl_string>\0<actual_xattr_data>
892 * or for a hardlinked or symlinked attribute
894 * <xattr_name>\0<stat_buffer>\0<xattr_link_source>\0
896 * xattr_name can be a subpath relative to the file the xattr is on.
897 * stat_buffer is the string representation of the stat struct.
898 * acl_string is an acl text when a non trivial acl is set on the xattr.
899 * actual_xattr_data is the content of the xattr file.
901 static bxattr_exit_code solaris_save_xattr(JCR *jcr, int fd, const char *xattr_namespace,
902 const char *attrname, bool toplevel_hidden_dir, int stream)
907 xattr_link_cache_entry_t *xlce;
908 char target_attrname[PATH_MAX];
909 char link_source[PATH_MAX];
910 char *acl_text = NULL;
911 char attribs[MAXSTRING];
913 bxattr_exit_code retval = bxattr_exit_error;
916 bsnprintf(target_attrname, sizeof(target_attrname), "%s%s", xattr_namespace, attrname);
919 * Get the stats of the extended or extensible attribute.
921 if (fstatat(fd, attrname, &st, AT_SYMLINK_NOFOLLOW) < 0) {
924 retval = bxattr_exit_ok;
927 Mmsg3(jcr->errmsg, _("Unable to get status on xattr %s on file \"%s\": ERR=%s\n"),
928 target_attrname, jcr->last_fname, be.bstrerror());
929 Dmsg3(100, "fstatat of xattr %s on \"%s\" failed: ERR=%s\n",
930 target_attrname, jcr->last_fname, be.bstrerror());
936 * Based on the filetype perform the correct action. We support most filetypes here, more
937 * then the actual implementation on Solaris supports so some code may never get executed
938 * due to limitations in the implementation.
940 switch (st.st_mode & S_IFMT) {
945 * Get any acl on the xattr.
947 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
951 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
952 * Encode the stat struct into an ASCII representation.
954 encode_stat(attribs, &st, 0, stream);
955 cnt = bsnprintf(buffer, sizeof(buffer), "%s%c%s%c%s%c",
956 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
960 * Get any acl on the xattr.
962 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok)
966 * See if this is the toplevel_hidden_dir being saved.
968 if (toplevel_hidden_dir) {
970 * Save the data for later storage when we encounter a real xattr. We store the data
971 * in the jcr->xattr_data->content buffer and flush that just before sending out the
972 * first real xattr. Encode the stat struct into an ASCII representation and jump
973 * out of the function.
975 encode_stat(attribs, &st, 0, stream);
976 cnt = bsnprintf(buffer, sizeof(buffer),
978 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
979 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
980 jcr->xattr_data->content_length = cnt;
984 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
985 * Encode the stat struct into an ASCII representation.
987 encode_stat(attribs, &st, 0, stream);
988 cnt = bsnprintf(buffer, sizeof(buffer),
990 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
995 * If this is a hardlinked file check the inode cache for a hit.
997 if (st.st_nlink > 1) {
999 * See if the cache already knows this inode number.
1001 if ((xlce = find_xattr_link_cache_entry(jcr, st.st_ino)) != NULL) {
1003 * Generate a xattr encoding with the reference to the target in there.
1005 encode_stat(attribs, &st, st.st_ino, stream);
1006 cnt = bsnprintf(buffer, sizeof(buffer),
1008 target_attrname, 0, attribs, 0, xlce->target, 0);
1009 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1010 jcr->xattr_data->content_length = cnt;
1011 retval = send_xattr_stream(jcr, stream);
1014 * For a hard linked file we are ready now, no need to recursively save the attributes.
1020 * Store this hard linked file in the cache.
1021 * Store the name relative to the top level xattr space.
1023 add_xattr_link_cache_entry(jcr, st.st_ino, target_attrname + 1);
1027 * Get any acl on the xattr.
1029 if (solaris_save_xattr_acl(jcr, attrfd, attrname, &acl_text) != bxattr_exit_ok) {
1034 * Encode the stat struct into an ASCII representation.
1036 encode_stat(attribs, &st, 0, stream);
1037 cnt = bsnprintf(buffer, sizeof(buffer),
1039 target_attrname, 0, attribs, 0, (acl_text) ? acl_text : "", 0);
1042 * Open the extended or extensible attribute file.
1044 if ((attrfd = openat(fd, attrname, O_RDONLY)) < 0) {
1047 retval = bxattr_exit_ok;
1050 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on \"%s\": ERR=%s\n"),
1051 target_attrname, jcr->last_fname, be.bstrerror());
1052 Dmsg3(100, "openat of xattr %s on \"%s\" failed: ERR=%s\n",
1053 target_attrname, jcr->last_fname, be.bstrerror());
1060 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1061 * Encode the stat struct into an ASCII representation.
1063 if (readlink(attrname, link_source, sizeof(link_source)) < 0) {
1066 retval = bxattr_exit_ok;
1069 Mmsg3(jcr->errmsg, _("Unable to read symlin %s on \"%s\": ERR=%s\n"),
1070 target_attrname, jcr->last_fname, be.bstrerror());
1071 Dmsg3(100, "readlink of xattr %s on \"%s\" failed: ERR=%s\n",
1072 target_attrname, jcr->last_fname, be.bstrerror());
1078 * Generate a xattr encoding with the reference to the target in there.
1080 encode_stat(attribs, &st, st.st_ino, stream);
1081 cnt = bsnprintf(buffer, sizeof(buffer),
1083 target_attrname, 0, attribs, 0, link_source, 0);
1084 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1085 jcr->xattr_data->content_length = cnt;
1086 retval = send_xattr_stream(jcr, stream);
1088 if (retval == bxattr_exit_ok) {
1089 jcr->xattr_data->nr_saved++;
1093 * For a soft linked file we are ready now, no need to recursively save the attributes.
1101 * See if this is the first real xattr being saved.
1102 * If it is save the toplevel_hidden_dir attributes first.
1103 * This is easy as its stored already in the jcr->xattr_data->content buffer.
1105 if (jcr->xattr_data->nr_saved == 0) {
1106 retval = send_xattr_stream(jcr, STREAM_XATTR_SOLARIS);
1107 if (retval != bxattr_exit_ok) {
1110 jcr->xattr_data->nr_saved++;
1113 pm_memcpy(jcr->xattr_data->content, buffer, cnt);
1114 jcr->xattr_data->content_length = cnt;
1117 * Only dump the content of regular files.
1119 switch (st.st_mode & S_IFMT) {
1121 if (st.st_size > 0) {
1123 * Protect ourself against things getting out of hand.
1125 if (st.st_size >= MAX_XATTR_STREAM) {
1126 Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
1127 jcr->last_fname, MAX_XATTR_STREAM);
1131 while ((cnt = read(attrfd, buffer, sizeof(buffer))) > 0) {
1132 jcr->xattr_data->content = check_pool_memory_size(jcr->xattr_data->content, jcr->xattr_data->content_length + cnt);
1133 memcpy(jcr->xattr_data->content + jcr->xattr_data->content_length, buffer, cnt);
1134 jcr->xattr_data->content_length += cnt;
1138 Mmsg2(jcr->errmsg, _("Unable to read content of xattr %s on file \"%s\"\n"),
1139 target_attrname, jcr->last_fname);
1140 Dmsg2(100, "read of data from xattr %s on \"%s\" failed\n",
1141 target_attrname, jcr->last_fname);
1152 retval = send_xattr_stream(jcr, stream);
1153 if (retval == bxattr_exit_ok) {
1154 jcr->xattr_data->nr_saved++;
1159 * Recursivly call solaris_save_extended_attributes for archiving the attributes
1160 * available on this extended attribute.
1163 retval = solaris_save_xattrs(jcr, xattr_namespace, attrname);
1166 * The recursive call could change our working dir so change back to the wanted workdir.
1168 if (fchdir(fd) < 0) {
1171 retval = bxattr_exit_ok;
1174 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space of file \"%s\": ERR=%s\n"),
1175 jcr->last_fname, be.bstrerror());
1176 Dmsg3(100, "Unable to fchdir to xattr space of file \"%s\" using fd %d: ERR=%s\n",
1177 jcr->last_fname, fd, be.bstrerror());
1193 static bxattr_exit_code solaris_save_xattrs(JCR *jcr, const char *xattr_namespace, const char *attr_parent)
1196 int fd, filefd = -1, attrdirfd = -1;
1199 char current_xattr_namespace[PATH_MAX];
1200 bxattr_exit_code retval = bxattr_exit_error;
1204 * Determine what argument to use. Use attr_parent when set
1205 * (recursive call) or jcr->last_fname for first call. Also save
1206 * the current depth of the xattr_space we are in.
1210 if (xattr_namespace) {
1211 bsnprintf(current_xattr_namespace, sizeof(current_xattr_namespace), "%s%s/",
1212 xattr_namespace, attr_parent);
1214 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1217 name = jcr->last_fname;
1218 bstrncpy(current_xattr_namespace, "/", sizeof(current_xattr_namespace));
1222 * Open the file on which to save the xattrs read-only.
1224 if ((filefd = open(name, O_RDONLY | O_NONBLOCK)) < 0) {
1227 retval = bxattr_exit_ok;
1230 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1231 jcr->last_fname, be.bstrerror());
1232 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1233 jcr->last_fname, be.bstrerror());
1239 * Open the xattr naming space.
1241 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1245 * Gentile way of the system saying this type of xattr layering is not supported.
1246 * Which is not problem we just forget about this this xattr.
1247 * But as this is not an error we return a positive return value.
1249 retval = bxattr_exit_ok;
1252 retval = bxattr_exit_ok;
1255 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1256 name, jcr->last_fname, be.bstrerror());
1257 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1258 name, jcr->last_fname, be.bstrerror());
1264 * We need to change into the attribute directory to determine if each of the
1265 * attributes should be saved.
1267 if (fchdir(attrdirfd) < 0) {
1268 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1269 jcr->last_fname, be.bstrerror());
1270 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1271 jcr->last_fname, attrdirfd, be.bstrerror());
1276 * Save the data of the toplevel xattr hidden_dir. We save this one before anything
1277 * else because the readdir returns "." entry after the extensible attr entry.
1278 * And as we want this entry before anything else we better just save its data.
1281 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, ".",
1282 true, STREAM_XATTR_SOLARIS);
1284 if ((fd = dup(attrdirfd)) == -1 ||
1285 (dirp = fdopendir(fd)) == (DIR *)NULL) {
1286 Mmsg2(jcr->errmsg, _("Unable to list the xattr space on file \"%s\": ERR=%s\n"),
1287 jcr->last_fname, be.bstrerror());
1288 Dmsg3(100, "Unable to fdopendir xattr space on file \"%s\" using fd %d: ERR=%s\n",
1289 jcr->last_fname, fd, be.bstrerror());
1295 * Walk the namespace.
1297 while (dp = readdir(dirp)) {
1299 * Skip only the toplevel . dir.
1301 if (!attr_parent && !strcmp(dp->d_name, "."))
1305 * Skip all .. directories
1307 if (!strcmp(dp->d_name, ".."))
1310 Dmsg3(400, "processing extended attribute %s%s on file \"%s\"\n",
1311 current_xattr_namespace, dp->d_name, jcr->last_fname);
1313 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1315 * We are not interested in read-only extensible attributes.
1317 if (!strcmp(dp->d_name, VIEW_READONLY)) {
1318 Dmsg3(400, "Skipping readonly extensible attributes %s%s on file \"%s\"\n",
1319 current_xattr_namespace, dp->d_name, jcr->last_fname);
1325 * We are only interested in read-write extensible attributes
1326 * when they contain non-transient values.
1328 if (!strcmp(dp->d_name, VIEW_READWRITE)) {
1330 * Determine if there are non-transient system attributes at the toplevel.
1331 * We need to provide a fd to the open file.
1333 if (!solaris_has_non_transient_extensible_attributes(filefd)) {
1334 Dmsg3(400, "Skipping transient extensible attributes %s%s on file \"%s\"\n",
1335 current_xattr_namespace, dp->d_name, jcr->last_fname);
1342 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1343 false, STREAM_XATTR_SOLARIS_SYS);
1346 #endif /* HAVE_SYS_NVPAIR_H && _PC_SATTR_ENABLED */
1351 solaris_save_xattr(jcr, attrdirfd, current_xattr_namespace, dp->d_name,
1352 false, STREAM_XATTR_SOLARIS);
1356 retval = bxattr_exit_ok;
1359 if (attrdirfd != -1)
1367 static bxattr_exit_code solaris_restore_xattr_acl(JCR *jcr, int fd, const char *attrname, char *acl_text)
1369 #ifdef HAVE_EXTENDED_ACL
1374 if ((error = acl_fromtext(acl_text, &aclp)) != 0) {
1375 Mmsg1(jcr->errmsg, _("Unable to convert acl from text on file \"%s\"\n"),
1377 return bxattr_exit_error;
1380 if ((fd != -1 && facl_set(fd, aclp) != 0) ||
1381 acl_set(attrname, aclp) != 0) {
1382 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1383 attrname, jcr->last_fname, be.bstrerror());
1384 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1385 attrname, jcr->last_fname, be.bstrerror());
1386 return bxattr_exit_error;
1392 return bxattr_exit_ok;
1394 #else /* HAVE_EXTENDED_ACL */
1396 aclent_t *acls = NULL;
1399 acls = aclfromtext(acl_text, &n);
1401 if ((fd != -1 && facl(fd, SETACL, n, acls) != 0) ||
1402 acl(attrname, SETACL, n, acls) != 0) {
1403 Mmsg3(jcr->errmsg, _("Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n"),
1404 attrname, jcr->last_fname, be.bstrerror());
1405 Dmsg3(100, "Unable to restore acl of xattr %s on file \"%s\": ERR=%s\n",
1406 attrname, jcr->last_fname, be.bstrerror());
1407 return bxattr_exit_error;
1414 return bxattr_exit_ok;
1416 #endif /* HAVE_EXTENDED_ACL */
1419 #endif /* HAVE_ACL */
1421 static bxattr_exit_code solaris_restore_xattrs(JCR *jcr, bool is_extensible)
1423 int fd, filefd = -1, attrdirfd = -1, attrfd = -1;
1424 int used_bytes, total_bytes, cnt;
1425 char *bp, *target_attrname, *attribs;
1426 char *linked_target = NULL;
1427 char *acl_text = NULL;
1431 struct timeval times[2];
1432 bxattr_exit_code retval = bxattr_exit_error;
1436 * Parse the xattr stream. First the part that is the same for all xattrs.
1439 total_bytes = jcr->xattr_data->content_length;
1442 * The name of the target xattr has a leading / we are not interested
1443 * in that so skip it when decoding the string. We always start a the /
1444 * of the xattr space anyway.
1446 target_attrname = jcr->xattr_data->content + 1;
1447 if ((bp = strchr(target_attrname, '\0')) == (char *)NULL ||
1448 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1454 * Open the file on which to restore the xattrs read-only.
1456 if ((filefd = open(jcr->last_fname, O_RDONLY | O_NONBLOCK)) < 0) {
1457 Mmsg2(jcr->errmsg, _("Unable to open file \"%s\": ERR=%s\n"),
1458 jcr->last_fname, be.bstrerror());
1459 Dmsg2(100, "Unable to open file \"%s\": ERR=%s\n",
1460 jcr->last_fname, be.bstrerror());
1465 * Open the xattr naming space and make it the current working dir.
1467 if ((attrdirfd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1468 Mmsg2(jcr->errmsg, _("Unable to open xattr space on file \"%s\": ERR=%s\n"),
1469 jcr->last_fname, be.bstrerror());
1470 Dmsg2(100, "Unable to open xattr space on file \"%s\": ERR=%s\n",
1471 jcr->last_fname, be.bstrerror());
1475 if (fchdir(attrdirfd) < 0) {
1476 Mmsg2(jcr->errmsg, _("Unable to chdir to xattr space on file \"%s\": ERR=%s\n"),
1477 jcr->last_fname, be.bstrerror());
1478 Dmsg3(100, "Unable to fchdir to xattr space on file \"%s\" using fd %d: ERR=%s\n",
1479 jcr->last_fname, attrdirfd, be.bstrerror());
1484 * Try to open the correct xattr subdir based on the target_attrname given.
1485 * e.g. check if its a subdir attrname. Each / in the string makes us go
1488 while ((bp = strchr(target_attrname, '/')) != (char *)NULL) {
1491 if ((fd = open(target_attrname, O_RDONLY | O_NONBLOCK)) < 0) {
1492 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1493 target_attrname, jcr->last_fname, be.bstrerror());
1494 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1495 target_attrname, jcr->last_fname, be.bstrerror());
1503 * Open the xattr naming space.
1505 if ((fd = openat(filefd, ".", O_RDONLY | O_XATTR)) < 0) {
1506 Mmsg3(jcr->errmsg, _("Unable to open xattr space %s on file \"%s\": ERR=%s\n"),
1507 target_attrname, jcr->last_fname, be.bstrerror());
1508 Dmsg3(100, "Unable to open xattr space %s on file \"%s\": ERR=%s\n",
1509 target_attrname, jcr->last_fname, be.bstrerror());
1517 * Make the xattr space our current workingdir.
1519 if (fchdir(attrdirfd) < 0) {
1520 Mmsg3(jcr->errmsg, _("Unable to chdir to xattr space %s on file \"%s\": ERR=%s\n"),
1521 target_attrname, jcr->last_fname, be.bstrerror());
1522 Dmsg4(100, "Unable to fchdir to xattr space %s on file \"%s\" using fd %d: ERR=%s\n",
1523 target_attrname, jcr->last_fname, attrdirfd, be.bstrerror());
1527 target_attrname = ++bp;
1531 * Decode the attributes from the stream.
1533 decode_stat(attribs, &st, &inum);
1536 * Decode the next field (acl_text).
1538 if ((bp = strchr(attribs, '\0')) == (char *)NULL ||
1539 (used_bytes = (bp - jcr->xattr_data->content)) >= (total_bytes - 1)) {
1545 * Based on the filetype perform the correct action. We support most filetypes here, more
1546 * then the actual implementation on Solaris supports so some code may never get executed
1547 * due to limitations in the implementation.
1549 switch (st.st_mode & S_IFMT) {
1552 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1554 unlinkat(attrdirfd, target_attrname, 0);
1555 if (mkfifo(target_attrname, st.st_mode) < 0) {
1556 Mmsg3(jcr->errmsg, _("Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n"),
1557 target_attrname, jcr->last_fname, be.bstrerror());
1558 Dmsg3(100, "Unable to mkfifo xattr %s on file \"%s\": ERR=%s\n",
1559 target_attrname, jcr->last_fname, be.bstrerror());
1566 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1568 unlinkat(attrdirfd, target_attrname, 0);
1569 if (mknod(target_attrname, st.st_mode, st.st_rdev) < 0) {
1570 Mmsg3(jcr->errmsg, _("Unable to mknod xattr %s on file \"%s\": ERR=%s\n"),
1571 target_attrname, jcr->last_fname, be.bstrerror());
1572 Dmsg3(100, "Unable to mknod xattr %s on file \"%s\": ERR=%s\n",
1573 target_attrname, jcr->last_fname, be.bstrerror());
1579 * If its not the hidden_dir create the entry.
1580 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1582 if (strcmp(target_attrname, ".")) {
1583 unlinkat(attrdirfd, target_attrname, AT_REMOVEDIR);
1584 if (mkdir(target_attrname, st.st_mode) < 0) {
1585 Jmsg3(jcr, M_WARNING, 0, _("Unable to mkdir xattr %s on file \"%s\": ERR=%s\n"),
1586 target_attrname, jcr->last_fname, be.bstrerror());
1587 Dmsg3(100, "Unable to mkdir xattr %s on file \"%s\": ERR=%s\n",
1588 target_attrname, jcr->last_fname, be.bstrerror());
1595 * See if this is a hard linked file. e.g. inum != 0
1600 unlinkat(attrdirfd, target_attrname, 0);
1601 if (link(linked_target, target_attrname) < 0) {
1602 Mmsg4(jcr->errmsg, _("Unable to link xattr %s to %s on file \"%s\": ERR=%s\n"),
1603 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
1604 Dmsg4(100, "Unable to link xattr %s to %s on file \"%s\": ERR=%s\n",
1605 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
1610 * Successfully restored xattr.
1612 retval = bxattr_exit_ok;
1615 if ((bp = strchr(acl_text, '\0')) == (char *)NULL ||
1616 (used_bytes = (bp - jcr->xattr_data->content)) >= total_bytes) {
1620 if (used_bytes < (total_bytes - 1))
1624 * Restore the actual xattr.
1626 if (!is_extensible) {
1627 unlinkat(attrdirfd, target_attrname, 0);
1630 if ((attrfd = openat(attrdirfd, target_attrname, O_RDWR | O_CREAT | O_TRUNC, st.st_mode)) < 0) {
1631 Mmsg3(jcr->errmsg, _("Unable to open xattr %s on file \"%s\": ERR=%s\n"),
1632 target_attrname, jcr->last_fname, be.bstrerror());
1633 Dmsg3(100, "Unable to open xattr %s on file \"%s\": ERR=%s\n",
1634 target_attrname, jcr->last_fname, be.bstrerror());
1640 * Restore the actual data.
1642 if (st.st_size > 0) {
1643 used_bytes = (data - jcr->xattr_data->content);
1644 cnt = total_bytes - used_bytes;
1647 * Do a sanity check, the st.st_size should be the same as the number of bytes
1648 * we have available as data of the stream.
1650 if (cnt != st.st_size) {
1651 Mmsg2(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n"),
1652 target_attrname, jcr->last_fname);
1653 Dmsg2(100, "Unable to restore data of xattr %s on file \"%s\": Not all data available in xattr stream\n",
1654 target_attrname, jcr->last_fname);
1659 cnt = write(attrfd, data, cnt);
1661 Mmsg3(jcr->errmsg, _("Unable to restore data of xattr %s on file \"%s\": ERR=%s\n"),
1662 target_attrname, jcr->last_fname, be.bstrerror());
1663 Dmsg3(100, "Unable to restore data of xattr %s on file \"%s\": ERR=%s\n",
1664 target_attrname, jcr->last_fname, be.bstrerror());
1670 cnt = total_bytes - used_bytes;
1676 * The current implementation of xattr on Solaris doesn't support this, but if it ever does we are prepared.
1680 if (symlink(linked_target, target_attrname) < 0) {
1681 Mmsg4(jcr->errmsg, _("Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n"),
1682 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
1683 Dmsg4(100, "Unable to symlink xattr %s to %s on file \"%s\": ERR=%s\n",
1684 target_attrname, linked_target, jcr->last_fname, be.bstrerror());
1689 * Successfully restored xattr.
1691 retval = bxattr_exit_ok;
1698 * Restore owner and acl for non extensible attributes.
1700 if (!is_extensible) {
1701 if (fchownat(attrdirfd, target_attrname, st.st_uid, st.st_gid, AT_SYMLINK_NOFOLLOW) < 0) {
1705 * Gentile way of the system saying this type of xattr layering is not supported.
1706 * But as this is not an error we return a positive return value.
1708 retval = bxattr_exit_ok;
1711 retval = bxattr_exit_ok;
1714 Mmsg3(jcr->errmsg, _("Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n"),
1715 target_attrname, jcr->last_fname, be.bstrerror());
1716 Dmsg3(100, "Unable to restore owner of xattr %s on file \"%s\": ERR=%s\n",
1717 target_attrname, jcr->last_fname, be.bstrerror());
1724 if (acl_text && *acl_text)
1725 if (solaris_restore_xattr_acl(jcr, attrfd, target_attrname, acl_text) != bxattr_exit_ok)
1727 #endif /* HAVE_ACL */
1730 * For a non extensible attribute restore access and modification time on the xattr.
1732 if (!is_extensible) {
1733 times[0].tv_sec = st.st_atime;
1734 times[0].tv_usec = 0;
1735 times[1].tv_sec = st.st_mtime;
1736 times[1].tv_usec = 0;
1738 if (futimesat(attrdirfd, target_attrname, times) < 0) {
1739 Mmsg3(jcr->errmsg, _("Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n"),
1740 target_attrname, jcr->last_fname, be.bstrerror());
1741 Dmsg3(100, "Unable to restore filetimes of xattr %s on file \"%s\": ERR=%s\n",
1742 target_attrname, jcr->last_fname, be.bstrerror());
1748 * Successfully restored xattr.
1750 retval = bxattr_exit_ok;
1754 Mmsg1(jcr->errmsg, _("Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n"),
1756 Dmsg1(100, "Illegal xattr stream, failed to parse xattr stream on file \"%s\"\n",
1763 if (attrdirfd != -1) {
1772 static bxattr_exit_code solaris_build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
1775 bxattr_exit_code retval = bxattr_exit_ok;
1778 * First see if extended attributes or extensible attributes are present.
1779 * If not just pretend things went ok.
1781 if (pathconf(jcr->last_fname, _PC_XATTR_EXISTS) > 0) {
1782 jcr->xattr_data->nr_saved = 0;
1783 jcr->xattr_data->link_cache = New(alist(10, not_owned_by_alist));
1786 * As we change the cwd in the save function save the current cwd
1787 * for restore after return from the solaris_save_xattrs function.
1789 getcwd(cwd, sizeof(cwd));
1790 retval = solaris_save_xattrs(jcr, NULL, NULL);
1792 delete jcr->xattr_data->link_cache;
1793 jcr->xattr_data->link_cache = NULL;
1798 static bxattr_exit_code solaris_parse_xattr_streams(JCR *jcr, int stream)
1801 bool is_extensible = false;
1802 bxattr_exit_code retval;
1805 * First make sure we can restore xattr on the filesystem.
1808 #if defined(HAVE_SYS_NVPAIR_H) && defined(_PC_SATTR_ENABLED)
1809 case STREAM_XATTR_SOLARIS_SYS:
1810 if (pathconf(jcr->last_fname, _PC_SATTR_ENABLED) <= 0) {
1811 Qmsg1(jcr, M_WARNING, 0,
1812 _("Failed to restore extensible attributes on file \"%s\"\n"),
1814 Dmsg1(100, "Unable to restore extensible attributes on file \"%s\", filesystem doesn't support this\n",
1816 return bxattr_exit_error;
1819 is_extensible = true;
1822 case STREAM_XATTR_SOLARIS:
1823 if (pathconf(jcr->last_fname, _PC_XATTR_ENABLED) <= 0) {
1824 Qmsg1(jcr, M_WARNING, 0,
1825 _("Failed to restore extended attributes on file \"%s\"\n"),
1827 Dmsg1(100, "Unable to restore extended attributes on file \"%s\", filesystem doesn't support this\n",
1829 return bxattr_exit_error;
1833 return bxattr_exit_error;
1837 * As we change the cwd in the restore function save the current cwd
1838 * for restore after return from the solaris_restore_xattrs function.
1840 getcwd(cwd, sizeof(cwd));
1841 retval = solaris_restore_xattrs(jcr, is_extensible);
1848 * Function pointers to the build and parse function to use for these xattrs.
1850 static bxattr_exit_code (*os_build_xattr_streams)(JCR *jcr, FF_PKT *ff_pkt) = solaris_build_xattr_streams;
1851 static bxattr_exit_code (*os_parse_xattr_streams)(JCR *jcr, int stream) = solaris_parse_xattr_streams;
1853 #endif /* defined(HAVE_SUN_OS) */
1856 * Entry points when compiled with support for XATTRs on a supported platform.
1858 bxattr_exit_code build_xattr_streams(JCR *jcr, FF_PKT *ff_pkt)
1860 if (os_build_xattr_streams) {
1861 return (*os_build_xattr_streams)(jcr, ff_pkt);
1863 return bxattr_exit_error;
1866 bxattr_exit_code parse_xattr_streams(JCR *jcr, int stream)
1870 if (os_parse_xattr_streams) {
1872 * See if we can parse this stream, and ifso give it a try.
1874 for (cnt = 0; cnt < sizeof(os_default_xattr_streams) / sizeof(int); cnt++) {
1875 if (os_default_xattr_streams[cnt] == stream) {
1876 return (*os_parse_xattr_streams)(jcr, stream);
1881 * Issue a warning and discard the message. But pretend the restore was ok.
1883 Jmsg2(jcr, M_WARNING, 0,
1884 _("Can't restore Extended Attributes of %s - incompatible xattr stream encountered - %d\n"),
1885 jcr->last_fname, stream);
1886 return bxattr_exit_error;