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authorRajesh Amaravathi <rajesh@redhat.com>2011-12-06 11:35:33 +0530
committerAnand Avati <avati@gluster.com>2012-01-14 04:57:59 -0800
commit36cedb338ec1d021e189379f30100f0d983e3e01 (patch)
tree18f6cf77cb43bccd4f31a683e80341d47c10fa66 /xlators/features/quota
parent4e76cea78b11e9290b16c2faa85cf81b8e32b7ea (diff)
core/setxattr: prevent users from setting glusterfs xattrs
* Each xlator prevents the user from setting glusterfs-internal xattrs like trusted.gfid by handling it in respective setxattr functions. The speacial case of trusted.gfid is handled in fuse (Not in posix because posix_setxattr is used to set gfid). * For xlators which did not define setxattr and/or fsetxattr, the functions have been implemented with appropriate checks. xlator | fops-added _______________|__________________________ | 1. afr | fsetxattr 2. stripe | setxatrr and fsetxattr 3. quota | setxattr and fsetxattr Change-Id: Ib62abb7067415b23a708002f884d30e8866fbf48 BUG: 765487 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.com/685 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com>
Diffstat (limited to 'xlators/features/quota')
-rw-r--r--xlators/features/quota/src/quota.c72
1 files changed, 71 insertions, 1 deletions
diff --git a/xlators/features/quota/src/quota.c b/xlators/features/quota/src/quota.c
index 3d147bdb2..b2f53048f 100644
--- a/xlators/features/quota/src/quota.c
+++ b/xlators/features/quota/src/quota.c
@@ -17,6 +17,8 @@
<http://www.gnu.org/licenses/>.
*/
+#include <fnmatch.h>
+
#include "quota.h"
#include "common-utils.h"
#include "defaults.h"
@@ -2650,6 +2652,72 @@ err:
return 0;
}
+int
+quota_setxattr_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int op_ret, int op_errno)
+{
+ QUOTA_STACK_UNWIND (setxattr, frame, op_ret, op_errno);
+ return 0;
+}
+
+int
+quota_setxattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *dict, int flags)
+{
+ data_pair_t *trav = NULL;
+ int op_errno = EINVAL;
+ int op_ret = -1;
+
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (loc, err);
+
+ GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", dict,
+ trav, op_errno, err);
+
+ STACK_WIND (frame, quota_setxattr_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->setxattr,
+ loc, dict, flags);
+ return 0;
+err:
+ QUOTA_STACK_UNWIND (setxattr, frame, op_ret, op_errno);
+ return 0;
+}
+
+int
+quota_fsetxattr_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int op_ret, int op_errno)
+{
+ QUOTA_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno);
+ return 0;
+}
+
+int
+quota_fsetxattr (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ dict_t *dict, int flags)
+{
+ data_pair_t *trav = NULL;
+ int32_t op_ret = -1;
+ int32_t op_errno = EINVAL;
+
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (fd, err);
+
+ GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.quota*", dict,
+ trav, op_errno, err);
+
+ STACK_WIND (frame, quota_fsetxattr_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->fsetxattr,
+ fd, dict, flags);
+ return 0;
+ err:
+ QUOTA_STACK_UNWIND (fsetxattr, frame, op_ret, op_errno);
+ return 0;
+}
+
int32_t
quota_statfs_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
@@ -2950,7 +3018,9 @@ struct xlator_fops fops = {
.fsync = quota_fsync,
.setattr = quota_setattr,
.fsetattr = quota_fsetattr,
- .mknod = quota_mknod
+ .mknod = quota_mknod,
+ .setxattr = quota_setxattr,
+ .fsetxattr = quota_fsetxattr
};
struct xlator_cbks cbks = {