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Integrity critical data may belong to a single subsystem or it may arise from cross subsystem interaction. Currently there is no mechanism to group or limit the data based on certain label. Limiting and grouping critical data based on a label would make it flexible and configurable to measure. Define "label:=", a new IMA policy condition, for the IMA func CRITICAL_DATA to allow grouping and limiting measurement of integrity critical data. Limit the measurement to the labels that are specified in the IMA policy - CRITICAL_DATA+"label:=". If "label:=" is not provided with the func CRITICAL_DATA, measure all the input integrity critical data. Signed-off-by: Tushar Sugandhi <tusharsu@linux.microsoft.com> Reviewed-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.