linux-ext4 - [PATCH v2 22/23] xfs: add fs-verity ioctls

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Date:   Tue,  4 Apr 2023 16:53:18 +0200
From:   Andrey Albershteyn <aalbersh@...hat.com>
To:     djwong@...nel.org, dchinner@...hat.com, ebiggers@...nel.org,
        hch@...radead.org, linux-xfs@...r.kernel.org,
        fsverity@...ts.linux.dev
Cc:     rpeterso@...hat.com, agruenba@...hat.com, xiang@...nel.org,
        chao@...nel.org, damien.lemoal@...nsource.wdc.com, jth@...nel.org,
        linux-erofs@...ts.ozlabs.org, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        cluster-devel@...hat.com, Andrey Albershteyn <aalbersh@...hat.com>
Subject: [PATCH v2 22/23] xfs: add fs-verity ioctls

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

Signed-off-by: Andrey Albershteyn <aalbersh@...hat.com>
---
 fs/xfs/xfs_ioctl.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 3d6d680b6cf3..ffa04f0aed4a 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -42,6 +42,7 @@
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/fileattr.h>
+#include <linux/fsverity.h>
 
 /*
  * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
@@ -2154,6 +2155,22 @@ xfs_file_ioctl(
 		return error;
 	}
 
+	case FS_IOC_ENABLE_VERITY:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_enable(filp, (const void __user *)arg);
+
+	case FS_IOC_MEASURE_VERITY:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_measure(filp, (void __user *)arg);
+
+	case FS_IOC_READ_VERITY_METADATA:
+		if (!xfs_has_verity(mp))
+			return -EOPNOTSUPP;
+		return fsverity_ioctl_read_metadata(filp,
+						    (const void __user *)arg);
+
 	default:
 		return -ENOTTY;
 	}
-- 
2.38.4