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[068/115] xfs: don't return XFS_ATTR_PARENT attributes via listxattr

Message ID 172229843401.1338752.22200803405477761.stgit@frogsfrogsfrogs (mailing list archive)
State Accepted, archived
Headers show
Series [001/115] xfs: pass xfs_buf lookup flags to xfs_*read_agi | expand

Commit Message

Darrick J. Wong July 30, 2024, 12:41 a.m. UTC 
From: Allison Henderson <allison.henderson@oracle.com>

Source kernel commit: daf9f884906bcfcffe26967aee9ece893fba019b

Parent pointers are internal filesystem metadata.  They're not intended
to be directly visible to userspace, so filter them out of
xfs_xattr_put_listent so that they don't appear in listxattr.

Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Inspired-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
[djwong: change this to XFS_ATTR_PRIVATE_NSP_MASK per fsverity patchset]
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 libxfs/xfs_da_format.h |    3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/libxfs/xfs_da_format.h b/libxfs/xfs_da_format.h
index 1395ad193..ebde6eb1d 100644
--- a/libxfs/xfs_da_format.h
+++ b/libxfs/xfs_da_format.h
@@ -726,6 +726,9 @@  struct xfs_attr3_leafblock {
 					 XFS_ATTR_SECURE | \
 					 XFS_ATTR_PARENT)
 
+/* Private attr namespaces not exposed to userspace */
+#define XFS_ATTR_PRIVATE_NSP_MASK	(XFS_ATTR_PARENT)
+
 #define XFS_ATTR_ONDISK_MASK	(XFS_ATTR_NSP_ONDISK_MASK | \
 				 XFS_ATTR_LOCAL | \
 				 XFS_ATTR_INCOMPLETE)