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Use ima_validate_rule(), at the end of the token parsing stage, to verify combinations of actions, hooks, and flags. This is useful to increase readability by consolidating such checks into a single function and also because rule conditionals can be specified in arbitrary order making it difficult to do comprehensive rule validation until the entire rule has been parsed. This allows for the check that ties together the "keyrings" conditional with the KEY_CHECK function hook to be moved into the final rule validation. The modsig check no longer needs to compiled conditionally because the token parser will ensure that modsig support is enabled before accepting "imasig|modsig" appraise type values. The final rule validation will ensure that appraise_type and appraise_flag options are only present in appraise rules. Finally, this allows for the check that ties together the "pcr" conditional with the measure action to be moved into the final rule validation. Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.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.