From: Andrey Albershteyn <aalbersh@redhat.com>
To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
fsverity@lists.linux.dev
Cc: djwong@kernel.org, ebiggers@kernel.org, david@fromorbit.com,
dchinner@redhat.com, Andrey Albershteyn <aalbersh@redhat.com>
Subject: [PATCH v3 05/28] fs: add FS_XFLAG_VERITY for fs-verity sealed inodes
Date: Fri, 6 Oct 2023 20:48:59 +0200 [thread overview]
Message-ID: <20231006184922.252188-6-aalbersh@redhat.com> (raw)
In-Reply-To: <20231006184922.252188-1-aalbersh@redhat.com>
Add extended file attribute FS_XFLAG_VERITY for inodes sealed with
fs-verity.
Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
---
Documentation/filesystems/fsverity.rst | 9 +++++++++
include/uapi/linux/fs.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/Documentation/filesystems/fsverity.rst b/Documentation/filesystems/fsverity.rst
index 13e4b18e5dbb..af889512c6ac 100644
--- a/Documentation/filesystems/fsverity.rst
+++ b/Documentation/filesystems/fsverity.rst
@@ -326,6 +326,15 @@ the file has fs-verity enabled. This can perform better than
FS_IOC_GETFLAGS and FS_IOC_MEASURE_VERITY because it doesn't require
opening the file, and opening verity files can be expensive.
+Extended file attributes
+------------------------
+
+For fs-verity sealed files the FS_XFLAG_VERITY extended file
+attribute is set. The attribute can be observed via lsattr.
+
+ [root@vm:~]# lsattr /mnt/test/foo
+ --------------------V- /mnt/test/foo
+
.. _accessing_verity_files:
Accessing verity files
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index b7b56871029c..5172a2eb902c 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -140,6 +140,7 @@ struct fsxattr {
#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
#define FS_XFLAG_DAX 0x00008000 /* use DAX for IO */
#define FS_XFLAG_COWEXTSIZE 0x00010000 /* CoW extent size allocator hint */
+#define FS_XFLAG_VERITY 0x00020000 /* fs-verity sealed inode */
#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
/* the read-only stuff doesn't really belong here, but any other place is
--
2.40.1
next prev parent reply other threads:[~2023-10-06 18:53 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-06 18:48 [PATCH v3 00/28] fs-verity support for XFS Andrey Albershteyn
2023-10-06 18:48 ` [PATCH v3 01/28] xfs: Add new name to attri/d Andrey Albershteyn
2023-10-06 18:48 ` [PATCH v3 02/28] xfs: add parent pointer support to attribute code Andrey Albershteyn
2023-10-06 18:48 ` [PATCH v3 03/28] xfs: define parent pointer xattr format Andrey Albershteyn
2023-10-06 18:48 ` [PATCH v3 04/28] xfs: Add xfs_verify_pptr Andrey Albershteyn
2023-10-11 1:01 ` Darrick J. Wong
2023-10-11 11:09 ` Andrey Albershteyn
2023-10-06 18:48 ` Andrey Albershteyn [this message]
2023-10-11 4:05 ` [PATCH v3 05/28] fs: add FS_XFLAG_VERITY for fs-verity sealed inodes Eric Biggers
2023-10-11 11:06 ` Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 06/28] fsverity: add drop_page() callout Andrey Albershteyn
2023-10-11 3:06 ` Eric Biggers
2023-10-11 11:11 ` Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 07/28] fsverity: always use bitmap to track verified status Andrey Albershteyn
2023-10-11 3:15 ` Eric Biggers
2023-10-11 13:03 ` Andrey Albershteyn
2023-10-12 7:27 ` Eric Biggers
2023-10-13 3:12 ` Darrick J. Wong
2023-10-17 4:58 ` Eric Biggers
2023-10-18 2:35 ` Darrick J. Wong
2023-10-17 6:01 ` Christoph Hellwig
2023-10-16 11:52 ` Andrey Albershteyn
2023-10-17 5:57 ` Christoph Hellwig
2023-10-17 17:49 ` Eric Biggers
2023-10-06 18:49 ` [PATCH v3 08/28] fsverity: pass Merkle tree block size to ->read_merkle_tree_page() Andrey Albershteyn
2023-10-11 3:17 ` Eric Biggers
2023-10-11 11:13 ` Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 09/28] fsverity: pass log_blocksize to end_enable_verity() Andrey Albershteyn
2023-10-11 3:19 ` Eric Biggers
2023-10-11 11:17 ` Andrey Albershteyn
2023-10-12 7:34 ` Eric Biggers
2023-10-06 18:49 ` [PATCH v3 10/28] fsverity: operate with Merkle tree blocks instead of pages Andrey Albershteyn
2023-10-07 4:02 ` kernel test robot
2023-10-11 3:56 ` Eric Biggers
2023-10-16 13:00 ` Christoph Hellwig
2023-10-06 18:49 ` [PATCH v3 11/28] iomap: pass readpage operation to read path Andrey Albershteyn
2023-10-11 18:31 ` Darrick J. Wong
2023-10-16 12:35 ` Andrey Albershteyn
2023-10-16 9:15 ` Christoph Hellwig
2023-10-16 12:32 ` Andrey Albershteyn
2023-10-16 12:58 ` Christoph Hellwig
2023-10-06 18:49 ` [PATCH v3 12/28] iomap: allow filesystem to implement read path verification Andrey Albershteyn
2023-10-11 18:39 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 13/28] xfs: add XBF_VERITY_CHECKED xfs_buf flag Andrey Albershteyn
2023-10-11 18:54 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 14/28] xfs: add XFS_DA_OP_BUFFER to make xfs_attr_get() return buffer Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 15/28] xfs: introduce workqueue for post read IO work Andrey Albershteyn
2023-10-11 18:55 ` Darrick J. Wong
2023-10-16 12:37 ` Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 16/28] xfs: add bio_set and submit_io for ioend post-processing Andrey Albershteyn
2023-10-11 18:47 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 17/28] xfs: add attribute type for fs-verity Andrey Albershteyn
2023-10-11 18:48 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 18/28] xfs: make xfs_buf_get() to take XBF_* flags Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 19/28] xfs: add XBF_DOUBLE_ALLOC to increase size of the buffer Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 20/28] xfs: add fs-verity ro-compat flag Andrey Albershteyn
2023-10-11 18:56 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 21/28] xfs: add inode on-disk VERITY flag Andrey Albershteyn
2023-10-11 18:57 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 22/28] xfs: initialize fs-verity on file open and cleanup on inode destruction Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 23/28] xfs: don't allow to enable DAX on fs-verity sealsed inode Andrey Albershteyn
2023-10-11 19:00 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 24/28] xfs: disable direct read path for fs-verity sealed files Andrey Albershteyn
2023-10-11 19:02 ` Darrick J. Wong
2023-10-06 18:49 ` [PATCH v3 25/28] xfs: add fs-verity support Andrey Albershteyn
2023-10-06 23:40 ` kernel test robot
2023-10-11 1:39 ` Darrick J. Wong
2023-10-11 14:36 ` Andrey Albershteyn
2023-10-18 19:18 ` kernel test robot
2023-10-06 18:49 ` [PATCH v3 26/28] xfs: make scrub aware of verity dinode flag Andrey Albershteyn
2023-10-11 1:06 ` Darrick J. Wong
2023-10-11 14:37 ` Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 27/28] xfs: add fs-verity ioctls Andrey Albershteyn
2023-10-06 18:49 ` [PATCH v3 28/28] xfs: enable ro-compat fs-verity flag Andrey Albershteyn
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