/*
Bacula® - The Network Backup Solution
- Copyright (C) 2008-2009 Free Software Foundation Europe e.V.
+ Copyright (C) 2008-2010 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
+ modify it under the terms of version three of the GNU Affero General Public
License as published by the Free Software Foundation and included
in the file LICENSE.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
if (current_xattr->value_length > 0)
free(current_xattr->value);
+
+ free(current_xattr);
}
delete xattr_value_list;
ser_bytes(current_xattr->name, current_xattr->name_length);
ser_uint32(current_xattr->value_length);
- ser_bytes(current_xattr->value, current_xattr->value_length);
+ if (current_xattr->value_length > 0 && current_xattr->value) {
+ ser_bytes(current_xattr->value, current_xattr->value_length);
+ }
}
ser_end(jcr->xattr_data->content, expected_serialize_len + 10);
* Decode the valuepair. First decode the length of the name.
*/
unser_uint32(current_xattr->name_length);
+ if (current_xattr->name_length == 0) {
+ Mmsg1(jcr->errmsg, _("Illegal xattr stream, xattr name length <= 0 on file \"%s\"\n"),
+ jcr->last_fname);
+ Dmsg1(100, "Illegal xattr stream, xattr name length <= 0 on file \"%s\"\n",
+ jcr->last_fname);
+ free(current_xattr);
+ return bxattr_exit_error;
+ }
/*
* Allocate room for the name and decode its content.
*/
unser_uint32(current_xattr->value_length);
- /*
- * Allocate room for the value and decode its content.
- */
- current_xattr->value = (char *)malloc(current_xattr->value_length);
- unser_bytes(current_xattr->value, current_xattr->value_length);
+ if (current_xattr->value_length > 0) {
+ /*
+ * Allocate room for the value and decode its content.
+ */
+ current_xattr->value = (char *)malloc(current_xattr->value_length);
+ unser_bytes(current_xattr->value, current_xattr->value_length);
+ } else {
+ current_xattr->value = NULL;
+ }
xattr_value_list->append(current_xattr);
}
* First get the length of the available list with extended attributes.
*/
xattr_list_len = llistxattr(jcr->last_fname, NULL, 0);
- if (xattr_list_len < 0) {
+ switch (xattr_list_len) {
+ case -1:
switch (errno) {
case ENOENT:
return bxattr_exit_ok;
jcr->last_fname, be.bstrerror());
return bxattr_exit_error;
}
- } else if (xattr_list_len == 0) {
+ break;
+ case 0:
return bxattr_exit_ok;
+ default:
+ break;
}
/*
* Get the actual list of extended attributes names for a file.
*/
xattr_list_len = llistxattr(jcr->last_fname, xattr_list, xattr_list_len);
- if (xattr_list_len < 0) {
+ switch (xattr_list_len) {
+ case -1:
switch (errno) {
case ENOENT:
retval = bxattr_exit_ok;
jcr->last_fname, be.bstrerror());
goto bail_out;
}
+ break;
+ default:
+ break;
}
xattr_list[xattr_list_len] = '\0';
*/
bp = xattr_list;
while ((bp - xattr_list) + 1 < xattr_list_len) {
+ int name_len;
skip_xattr = false;
/*
}
}
- if (skip_xattr) {
+ name_len = strlen(bp);
+ if (skip_xattr || name_len == 0) {
bp = strchr(bp, '\0') + 1;
continue;
}
/*
* Allocate space for storing the name.
*/
- current_xattr->name_length = strlen(bp);
+ current_xattr->name_length = name_len;
current_xattr->name = (char *)malloc(current_xattr->name_length);
memcpy((caddr_t)current_xattr->name, (caddr_t)bp, current_xattr->name_length);
* First see how long the value is for the extended attribute.
*/
xattr_value_len = lgetxattr(jcr->last_fname, bp, NULL, 0);
- if (xattr_value_len < 0) {
+ switch (xattr_value_len) {
+ case -1:
switch (errno) {
case ENOENT:
retval = bxattr_exit_ok;
free(current_xattr);
goto bail_out;
}
- }
+ break;
+ case 0:
+ current_xattr->value = NULL;
+ current_xattr->value_length = 0;
+ expected_serialize_len += sizeof(current_xattr->value_length);
+ break;
+ default:
+ /*
+ * Allocate space for storing the value.
+ */
+ current_xattr->value = (char *)malloc(xattr_value_len);
+ memset((caddr_t)current_xattr->value, 0, xattr_value_len);
- /*
- * Allocate space for storing the value.
- */
- current_xattr->value = (char *)malloc(xattr_value_len);
- memset((caddr_t)current_xattr->value, 0, xattr_value_len);
+ xattr_value_len = lgetxattr(jcr->last_fname, bp, current_xattr->value, xattr_value_len);
+ if (xattr_value_len < 0) {
+ switch (errno) {
+ case ENOENT:
+ retval = bxattr_exit_ok;
+ free(current_xattr->value);
+ free(current_xattr->name);
+ free(current_xattr);
+ goto bail_out;
+ default:
+ Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ free(current_xattr->value);
+ free(current_xattr->name);
+ free(current_xattr);
+ goto bail_out;
+ }
+ }
+ /*
+ * Store the actual length of the value.
+ */
+ current_xattr->value_length = xattr_value_len;
+ expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
- xattr_value_len = lgetxattr(jcr->last_fname, bp, current_xattr->value, xattr_value_len);
- if (xattr_value_len < 0) {
- switch (errno) {
- case ENOENT:
- retval = bxattr_exit_ok;
- free(current_xattr->value);
- free(current_xattr->name);
- free(current_xattr);
- goto bail_out;
- default:
- Mmsg2(jcr->errmsg, _("lgetxattr error on file \"%s\": ERR=%s\n"),
- jcr->last_fname, be.bstrerror());
- Dmsg2(100, "lgetxattr error file=%s ERR=%s\n",
- jcr->last_fname, be.bstrerror());
+ /*
+ * Protect ourself against things getting out of hand.
+ */
+ if (expected_serialize_len >= MAX_XATTR_STREAM) {
+ Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
+ jcr->last_fname, MAX_XATTR_STREAM);
free(current_xattr->value);
free(current_xattr->name);
free(current_xattr);
goto bail_out;
}
- }
-
- /*
- * Store the actual length of the value.
- */
- current_xattr->value_length = xattr_value_len;
- expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
-
- /*
- * Protect ourself against things getting out of hand.
- */
- if (expected_serialize_len >= MAX_XATTR_STREAM) {
- Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
- jcr->last_fname, MAX_XATTR_STREAM);
- free(current_xattr->value);
- free(current_xattr->name);
- free(current_xattr);
- goto bail_out;
+ break;
}
xattr_value_list->append(current_xattr);
}
bail_out:
- if (xattr_list) {
+ if (xattr_list != NULL) {
free(xattr_list);
}
- if (xattr_value_list) {
+ if (xattr_value_list != NULL) {
xattr_drop_internal_table(xattr_value_list);
}
return retval;
#if defined(HAVE_FREEBSD_OS)
static int os_default_xattr_streams[1] = { STREAM_XATTR_FREEBSD };
static int os_default_xattr_namespaces[2] = { EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM };
-static const char *xattr_acl_skiplist[1] = { NULL };
+static const char *xattr_acl_skiplist[2] = { "system.posix1e.acl_access", NULL };
static const char *xattr_skiplist[1] = { NULL };
#elif defined(HAVE_NETBSD_OS)
static int os_default_xattr_streams[1] = { STREAM_XATTR_NETBSD };
uint32_t expected_serialize_len = 0;
unsigned int namespace_index;
int attrnamespace;
- char *current_attrnamespace, current_attrname[BUFSIZ], current_attrtuple[BUFSIZ];
+ char *current_attrnamespace = NULL;
+ char current_attrname[XATTR_BUFSIZ], current_attrtuple[XATTR_BUFSIZ];
xattr_t *current_xattr;
alist *xattr_value_list = NULL;
bxattr_exit_code retval = bxattr_exit_error;
for (namespace_index = 0; namespace_index < sizeof(os_default_xattr_namespaces) / sizeof(int); namespace_index++) {
attrnamespace = os_default_xattr_namespaces[namespace_index];
+ /*
+ * Convert the numeric attrnamespace into a string representation and make a private copy of that string.
+ * The extattr_namespace_to_string functions returns a strdupped string which we need to free.
+ */
+ if (extattr_namespace_to_string(attrnamespace, ¤t_attrnamespace) != 0) {
+ Mmsg2(jcr->errmsg, _("Failed to convert %d into namespace on file \"%s\"\n"),
+ attrnamespace, jcr->last_fname);
+ Dmsg2(100, "Failed to convert %d into namespace on file \"%s\"\n",
+ attrnamespace, jcr->last_fname);
+ goto bail_out;
+ }
+
/*
* First get the length of the available list with extended attributes.
+ * If we get EPERM on system namespace, don't return error.
+ * This is expected for normal users trying to archive the system
+ * namespace on FreeBSD 6.2 and later. On NetBSD 3.1 and later,
+ * they've decided to return EOPNOTSUPP instead.
*/
xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, NULL, 0);
- if (xattr_list_len < 0) {
+ switch (xattr_list_len) {
+ case -1:
switch (errno) {
case ENOENT:
retval = bxattr_exit_ok;
goto bail_out;
+#if defined(EOPNOTSUPP)
+ case EOPNOTSUPP:
+#endif
+ case EPERM:
+ if (attrnamespace == EXTATTR_NAMESPACE_SYSTEM) {
+ actuallyfree(current_attrnamespace);
+ current_attrnamespace = NULL;
+ continue;
+ }
+ /*
+ * FALLTHROUGH
+ */
default:
Mmsg2(jcr->errmsg, _("extattr_list_link error on file \"%s\": ERR=%s\n"),
jcr->last_fname, be.bstrerror());
jcr->last_fname, be.bstrerror());
goto bail_out;
}
- } else if (xattr_list_len == 0) {
+ break;
+ case 0:
continue;
+ default:
+ break;
}
/*
* Get the actual list of extended attributes names for a file.
*/
xattr_list_len = extattr_list_link(jcr->last_fname, attrnamespace, xattr_list, xattr_list_len);
- if (xattr_list_len < 0) {
+ switch (xattr_list_len) {
+ case -1:
switch (errno) {
case ENOENT:
retval = bxattr_exit_ok;
jcr->last_fname, be.bstrerror());
goto bail_out;
}
+ break;
+ default:
+ break;
}
xattr_list[xattr_list_len] = '\0';
skip_xattr = false;
/*
- * print the current name into the buffer as its not null terminated we need to
+ * Print the current name into the buffer as its not null terminated we need to
* use the length encoded in the string for copying only the needed bytes.
*/
- bsnprintf(current_attrname, sizeof(current_attrname), "%*.*s",
- xattr_list[index], xattr_list[index], xattr_list + (index + 1));
+ cnt = xattr_list[index];
+ if (cnt > ((int)sizeof(current_attrname) - 1)) {
+ cnt = ((int)sizeof(current_attrname) - 1);
+ }
+ strncpy(current_attrname, xattr_list + (index + 1), cnt);
+ current_attrname[cnt] = '\0';
/*
* First make a xattr tuple of the current namespace and the name of the xattr.
* e.g. something like user.<attrname> or system.<attrname>
*/
- if (extattr_namespace_to_string(attrnamespace, ¤t_attrnamespace) != 0) {
- Mmsg2(jcr->errmsg, _("Failed to convert %d into namespace on file \"%s\"\n"),
- attrnamespace, jcr->last_fname);
- Dmsg2(100, "Failed to convert %d into namespace on file \"%s\"\n",
- attrnamespace, jcr->last_fname);
- goto bail_out;
- }
-
- /*
- * Create a tupple of the current attrnamespace and attrname.
- */
bsnprintf(current_attrtuple, sizeof(current_attrtuple), "%s.%s", current_attrnamespace, current_attrname);
/*
/*
* On some OSes we want to skip certain xattrs which are in the xattr_skiplist array.
*/
- if (skip_xattr) {
+ if (!skip_xattr) {
for (cnt = 0; xattr_skiplist[cnt] != NULL; cnt++) {
if (bstrcmp(current_attrtuple, xattr_skiplist[cnt])) {
skip_xattr = true;
* First see how long the value is for the extended attribute.
*/
xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, NULL, 0);
- if (xattr_value_len < 0) {
+ switch (xattr_value_len) {
+ case -1:
switch (errno) {
case ENOENT:
retval = bxattr_exit_ok;
free(current_xattr);
goto bail_out;
}
- }
+ break;
+ case 0:
+ current_xattr->value = NULL;
+ current_xattr->value_length = 0;
+ expected_serialize_len += sizeof(current_xattr->value_length);
+ break;
+ default:
+ /*
+ * Allocate space for storing the value.
+ */
+ current_xattr->value = (char *)malloc(xattr_value_len);
+ memset((caddr_t)current_xattr->value, 0, xattr_value_len);
+
+ xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, current_xattr->value, xattr_value_len);
+ if (xattr_value_len < 0) {
+ switch (errno) {
+ case ENOENT:
+ retval = bxattr_exit_ok;
+ free(current_xattr->value);
+ free(current_xattr->name);
+ free(current_xattr);
+ goto bail_out;
+ default:
+ Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ free(current_xattr->value);
+ free(current_xattr->name);
+ free(current_xattr);
+ goto bail_out;
+ }
+ }
- /*
- * Allocate space for storing the value.
- */
- current_xattr->value = (char *)malloc(xattr_value_len);
- memset((caddr_t)current_xattr->value, 0, xattr_value_len);
+ /*
+ * Store the actual length of the value.
+ */
+ current_xattr->value_length = xattr_value_len;
+ expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
- xattr_value_len = extattr_get_link(jcr->last_fname, attrnamespace, current_attrname, current_xattr->value, xattr_value_len);
- if (xattr_value_len < 0) {
- switch (errno) {
- case ENOENT:
- retval = bxattr_exit_ok;
- free(current_xattr->value);
- free(current_xattr->name);
- free(current_xattr);
- goto bail_out;
- default:
- Mmsg2(jcr->errmsg, _("extattr_get_link error on file \"%s\": ERR=%s\n"),
- jcr->last_fname, be.bstrerror());
- Dmsg2(100, "extattr_get_link error file=%s ERR=%s\n",
- jcr->last_fname, be.bstrerror());
+ /*
+ * Protect ourself against things getting out of hand.
+ */
+ if (expected_serialize_len >= MAX_XATTR_STREAM) {
+ Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
+ jcr->last_fname, MAX_XATTR_STREAM);
free(current_xattr->value);
free(current_xattr->name);
free(current_xattr);
goto bail_out;
}
- }
-
- /*
- * Store the actual length of the value.
- */
- current_xattr->value_length = xattr_value_len;
- expected_serialize_len += sizeof(current_xattr->value_length) + current_xattr->value_length;
-
- /*
- * Protect ourself against things getting out of hand.
- */
- if (expected_serialize_len >= MAX_XATTR_STREAM) {
- Mmsg2(jcr->errmsg, _("Xattr stream on file \"%s\" exceeds maximum size of %d bytes\n"),
- jcr->last_fname, MAX_XATTR_STREAM);
- free(current_xattr->value);
- free(current_xattr->name);
- free(current_xattr);
- goto bail_out;
+ break;
}
xattr_value_list->append(current_xattr);
xattr_count++;
+
}
+ /*
+ * Drop the local copy of the current_attrnamespace.
+ */
+ actuallyfree(current_attrnamespace);
+ current_attrnamespace = NULL;
+
/*
* We are done with this xattr list.
*/
}
xattr_drop_internal_table(xattr_value_list);
- xattr_value_list = NULL;
/*
* Send the datastream to the SD.
return send_xattr_stream(jcr, os_default_xattr_streams[0]);
} else {
xattr_drop_internal_table(xattr_value_list);
- xattr_value_list = NULL;
return bxattr_exit_ok;
}
bail_out:
- if (xattr_list) {
+ if (current_attrnamespace != NULL) {
+ actuallyfree(current_attrnamespace);
+ }
+ if (xattr_list != NULL) {
free(xattr_list);
}
- if (xattr_value_list) {
+ if (xattr_value_list != NULL) {
xattr_drop_internal_table(xattr_value_list);
- xattr_value_list = NULL;
}
return retval;
}
*/
cnt = extattr_set_link(jcr->last_fname, current_attrnamespace,
attrname, current_xattr->value, current_xattr->value_length);
- if (cnt < 0 || cnt != current_xattr->value_length) {
+ if (cnt < 0 || cnt != (int)current_xattr->value_length) {
switch (errno) {
case ENOENT:
goto bail_out;
#include <sys/acl.h>
#endif
-#if !defined(HAVE_OPENAT) ||
- !defined(HAVE_UNKINKAT) ||
- !defined(HAVE_FCHOWNAT) ||
+#if !defined(HAVE_OPENAT) || \
+ !defined(HAVE_UNLINKAT) || \
+ !defined(HAVE_FCHOWNAT) || \
!defined(HAVE_FUTIMESAT)
#error "Unable to compile code because of missing openat, unlinkat, fchownat or futimesat function"
#endif
char link_source[PATH_MAX];
char *acl_text = NULL;
char attribs[MAXSTRING];
- char buffer[BUFSIZ];
+ char buffer[XATTR_BUFSIZ];
bxattr_exit_code retval = bxattr_exit_error;
berrno be;
}
bail_out:
- if (acl_text) {
+ if (acl_text != NULL) {
free(acl_text);
}
if (attrfd != -1) {