diff options
| author | Rajesh Amaravathi <rajesh@redhat.com> | 2011-12-06 11:35:33 +0530 |
|---|---|---|
| committer | Anand Avati <avati@gluster.com> | 2012-01-14 04:57:59 -0800 |
| commit | 36cedb338ec1d021e189379f30100f0d983e3e01 (patch) | |
| tree | 18f6cf77cb43bccd4f31a683e80341d47c10fa66 /xlators/features | |
| parent | 4e76cea78b11e9290b16c2faa85cf81b8e32b7ea (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')
| -rw-r--r-- | xlators/features/quota/src/quota.c | 72 |
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 = { |