From: Allison Henderson <allison.henderson@xxxxxxxxxx>
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@xxxxxxxxxx>
Inspired-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
[djwong: change this to XFS_ATTR_PRIVATE_NSP_MASK per fsverity patchset]
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
libxfs/xfs_da_format.h | 3 +++
1 file changed, 3 insertions(+)
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)
