From: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
The Merkle tree blocks and descriptor are stored in the extended
attributes of the inode. Add new attribute type for fs-verity
metadata. Add XFS_ATTR_INTERNAL_MASK to skip parent pointer and
fs-verity attributes as those are only for internal use. While we're
at it add a few comments in relevant places that internally visible
attributes are not suppose to be handled via interface defined in
xfs_xattr.c.
Signed-off-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
libxfs/xfs_da_format.h | 10 +++++++++-
libxfs/xfs_log_format.h | 1 +
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/libxfs/xfs_da_format.h b/libxfs/xfs_da_format.h
index e7045b36..3a35ba58 100644
--- a/libxfs/xfs_da_format.h
+++ b/libxfs/xfs_da_format.h
@@ -715,14 +715,22 @@ struct xfs_attr3_leafblock {
#define XFS_ATTR_ROOT_BIT 1 /* limit access to trusted attrs */
#define XFS_ATTR_SECURE_BIT 2 /* limit access to secure attrs */
#define XFS_ATTR_PARENT_BIT 3 /* parent pointer attrs */
+#define XFS_ATTR_VERITY_BIT 4 /* verity merkle tree and descriptor */
#define XFS_ATTR_INCOMPLETE_BIT 7 /* attr in middle of create/delete */
#define XFS_ATTR_LOCAL (1u << XFS_ATTR_LOCAL_BIT)
#define XFS_ATTR_ROOT (1u << XFS_ATTR_ROOT_BIT)
#define XFS_ATTR_SECURE (1u << XFS_ATTR_SECURE_BIT)
#define XFS_ATTR_PARENT (1u << XFS_ATTR_PARENT_BIT)
+#define XFS_ATTR_VERITY (1u << XFS_ATTR_VERITY_BIT)
#define XFS_ATTR_INCOMPLETE (1u << XFS_ATTR_INCOMPLETE_BIT)
#define XFS_ATTR_NSP_ONDISK_MASK \
- (XFS_ATTR_ROOT | XFS_ATTR_SECURE | XFS_ATTR_PARENT)
+ (XFS_ATTR_ROOT | XFS_ATTR_SECURE | XFS_ATTR_PARENT | \
+ XFS_ATTR_VERITY)
+
+/*
+ * Internal attributes not exposed to the user
+ */
+#define XFS_ATTR_INTERNAL_MASK (XFS_ATTR_PARENT | XFS_ATTR_VERITY)
/*
* Alignment for namelist and valuelist entries (since they are mixed
diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
index 9cbcba4b..407fadfb 100644
--- a/libxfs/xfs_log_format.h
+++ b/libxfs/xfs_log_format.h
@@ -975,6 +975,7 @@ struct xfs_icreate_log {
#define XFS_ATTRI_FILTER_MASK (XFS_ATTR_ROOT | \
XFS_ATTR_SECURE | \
XFS_ATTR_PARENT | \
+ XFS_ATTR_VERITY | \
XFS_ATTR_INCOMPLETE)
/*
