Documentation/admin-guide/LSM/SELinux.rst

Source file repositories/reference/linux-study-clean/Documentation/admin-guide/LSM/SELinux.rst

File Facts

System: Linux kernel
Corpus path: Documentation/admin-guide/LSM/SELinux.rst
Extension: .rst
Size: 1427 bytes
Lines: 45
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

=======
SELinux
=======

Information about the SELinux kernel subsystem can be found at the
following links:

	https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git/tree/README.md

	https://github.com/selinuxproject/selinux-kernel/wiki

Information about the SELinux userspace can be found at:

	https://github.com/SELinuxProject/selinux/wiki

If you want to use SELinux, chances are you will want
to use the distro-provided policies, or install the
latest reference policy release from

	https://github.com/SELinuxProject/refpolicy

However, if you want to install a dummy policy for
testing, you can do using ``mdp`` provided under
scripts/selinux.  Note that this requires the selinux
userspace to be installed - in particular you will
need checkpolicy to compile a kernel, and setfiles and
fixfiles to label the filesystem.

	1. Compile the kernel with selinux enabled.
	2. Type ``make`` to compile ``mdp``.
	3. Make sure that you are not running with
	   SELinux enabled and a real policy.  If
	   you are, reboot with selinux disabled
	   before continuing.
	4. Run install_policy.sh::

		cd scripts/selinux
		sh install_policy.sh

Step 4 will create a new dummy policy valid for your
kernel, with a single selinux user, role, and type.
It will compile the policy, will set your ``SELINUXTYPE`` to
``dummy`` in ``/etc/selinux/config``, install the compiled policy
as ``dummy``, and relabel your filesystem.

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.