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Although it isn't used directly by the ioctls, "struct fsverity_descriptor" is required by userspace programs that need to compute fs-verity file digests in a standalone way. Therefore it's also needed to sign files in a standalone way. Similarly, "struct fsverity_formatted_digest" (previously called "struct fsverity_signed_digest" which was misleading) is also needed to sign files if the built-in signature verification is being used. Therefore, move these structs to the UAPI header. While doing this, try to make it clear that the signature-related fields in fsverity_descriptor aren't used in the file digest computation. Acked-by: Luca Boccassi <luca.boccassi@microsoft.com> Link: https://lore.kernel.org/r/20201113211918.71883-5-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.