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From the cover letter: The recent patch set 'evm: Improve usability of portable signatures' added the possibility to include EVM portable signatures in the IMA measurement list. However, the information necessary to verify the signature were not included in the IMA measurement list. This patch set introduces new template fields to accomplish this goal: - 'iuid': the inode UID; - 'igid': the inode GID; - 'imode': the inode mode; - 'xattrnames': a list of xattr names (separated by |), only if the xattr is present; - 'xattrlengths': a list of xattr lengths (u32), only if the xattr is present; - 'xattrvalues': a list of xattr values; Patch 1 adds an helper function to show integers in the measurement list. Patches 2, 3 and 5 introduce new template fields. Patch 4 make it possible to verify EVM portable signatures which protect xattrs belonging to LSMs not enabled in the target platform. Patch 6 introduces the new IMA template evm-sig. Patch 7 fixes a small issue in evm_write_xattrs() when audit is not enabled. Link: https://lore.kernel.org/linux-integrity/20210528073812.407936-1-roberto.sassu@huawei.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.