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[21/29] xfs: add fs-verity ioctls

Message ID 171175868908.1988170.3425887822039650099.stgit@frogsfrogsfrogs (mailing list archive)
State New, archived
Headers show
Series [01/29] xfs: use unsigned ints for non-negative quantities in xfs_attr_remote.c | expand

Commit Message

Darrick J. Wong March 30, 2024, 12:41 a.m. UTC 
From: Andrey Albershteyn <aalbersh@redhat.com>

Add fs-verity ioctls to enable, dump metadata (descriptor and Merkle
tree pages) and obtain file's digest.

Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
[djwong: remove unnecessary casting]
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/xfs_ioctl.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)
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Patch

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 9d161e16ccf32..0aa0ceb9ec153 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -50,6 +50,7 @@ 
 #include <linux/fileattr.h>
 #include <linux/security.h>
 #include <linux/fsnotify.h>
+#include <linux/fsverity.h>
 
 /*
  * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
@@ -2711,6 +2712,21 @@  xfs_file_ioctl(
 	case XFS_IOC_MAP_FREESP:
 		return xfs_ioc_map_freesp(filp, arg);
 
+	case FS_IOC_ENABLE_VERITY:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_enable(filp, arg);
+
+	case FS_IOC_MEASURE_VERITY:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_measure(filp, arg);
+
+	case FS_IOC_READ_VERITY_METADATA:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_read_metadata(filp, arg);
+
 	default:
 		return -ENOTTY;
 	}