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Date:   Fri, 15 Jan 2021 10:24:01 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-fscrypt@...r.kernel.org
Cc:     linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        Theodore Ts'o <tytso@....edu>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Victor Hsieh <victorhsieh@...gle.com>
Subject: [fsverity-utils RFC PATCH 1/2] Upgrade to latest fsverity_uapi.h

From: Eric Biggers <ebiggers@...gle.com>

Add the FS_IOC_READ_VERITY_METADATA ioctl.

Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 common/fsverity_uapi.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/common/fsverity_uapi.h b/common/fsverity_uapi.h
index a739c9a..c59a897 100644
--- a/common/fsverity_uapi.h
+++ b/common/fsverity_uapi.h
@@ -85,7 +85,21 @@ struct fsverity_formatted_digest {
 	__u8 digest[];
 };
 
+#define FS_VERITY_METADATA_TYPE_MERKLE_TREE	1
+#define FS_VERITY_METADATA_TYPE_DESCRIPTOR	2
+#define FS_VERITY_METADATA_TYPE_SIGNATURE	3
+
+struct fsverity_read_metadata_arg {
+	__u64 metadata_type;
+	__u64 offset;
+	__u64 length;
+	__u64 buf_ptr;
+	__u64 __reserved;
+};
+
 #define FS_IOC_ENABLE_VERITY	_IOW('f', 133, struct fsverity_enable_arg)
 #define FS_IOC_MEASURE_VERITY	_IOWR('f', 134, struct fsverity_digest)
+#define FS_IOC_READ_VERITY_METADATA \
+	_IOWR('f', 135, struct fsverity_read_metadata_arg)
 
 #endif /* _UAPI_LINUX_FSVERITY_H */
-- 
2.30.0

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