semodule(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | MODES | OPTIONS | EXAMPLE | SEE ALSO | AUTHORS | COLOPHON

SEMODULE(8)                        NSA                       SEMODULE(8)

NAME         top

       semodule - Manage SELinux policy modules.

SYNOPSIS         top

       semodule [option]... MODE...

DESCRIPTION         top

       semodule is the tool used to manage SELinux policy modules,
       including installing, upgrading, listing and removing modules.
       semodule may also be used to force a rebuild of policy from the
       module store and/or to force a reload of policy without
       performing any other transaction.  semodule acts on module
       packages created by semodule_package.  Conventionally, these
       files have a .pp suffix (policy package), although this is not
       mandated in any way.

MODES         top

       -R, --reload
              force a reload of policy

       -B, --build
              force a rebuild of policy (also reloads unless -n is used)

       --refresh
              Like --build, but reuses existing linked policy if no
              changes to module files are detected (by comparing with
              checksum from the last transaction).  One can use this
              instead of -B to ensure that any changes to the module
              store done by an external tool (e.g. a package manager)
              are applied, while automatically skipping the module re-
              linking if there are no module changes.

       -D, --disable_dontaudit
              Temporarily remove dontaudits from policy.  Reverts
              whenever policy is rebuilt

       -i,--install=MODULE_PKG
              install/replace a module package

       -u,--upgrade=MODULE_PKG
              deprecated, alias for --install

       -b,--base=MODULE_PKG
              deprecated, alias for --install

       -r,--remove=MODULE_NAME
              remove existing module at desired priority (defaults to -X
              400)

       -l[KIND],--list-modules[=KIND]
              display list of installed modules (other than base)

       KIND:

       standard
              list highest priority, enabled, non-base modules

       full   list all modules

       -X,--priority=PRIORITY
              set priority for following operations (1-999)

       -e,--enable=MODULE_NAME
              enable module

       -d,--disable=MODULE_NAME
              disable module

       -E,--extract=MODULE_PKG
              Extract a module from the store as an HLL or CIL file to
              the current directory.  A module is extracted as HLL by
              default. The name of the module written is <module-
              name>.<lang_ext>

OPTIONS         top

       -s,--store
              name of the store to operate on

       -n,--noreload,-N
              do not reload policy after commit

       -h,--help
              prints help message and quit

       -P,--preserve_tunables
              Preserve tunables in policy

       -C,--ignore-module-cache
              Recompile CIL modules built from HLL files

       -p,--path
              Use an alternate path for the policy root

       -S,--store-path
              Use an alternate path for the policy store root

       -v,--verbose
              be verbose

       -c,--cil
              Extract module as a CIL file. This only affects the
              --extract option and only modules listed in --extract
              after this option.

       -H,--hll
              Extract module as an HLL file. This only affects the
              --extract option and only modules listed in --extract
              after this option.

       -m,--checksum
              Add SHA256 checksum of modules to the list output.

EXAMPLE         top

       # Install or replace a base policy package.
       $ semodule -b base.pp
       # Install or replace a non-base policy package.
       $ semodule -i httpd.pp
       # Install or replace all non-base modules in the current directory.
       # This syntax can be used with -i/u/r/E, but no other option can be entered after the module names
       $ semodule -i *.pp
       # Install or replace all modules in the current directory.
       $ ls *.pp | grep -Ev "base.pp|enableaudit.pp" | xargs /usr/sbin/semodule -b base.pp -i
       # List non-base modules.
       $ semodule -l
       # List all modules including priorities
       $ semodule -lfull
       # Remove a module at priority 100
       $ semodule -X 100 -r wireshark
       # Turn on all AVC Messages for which SELinux currently is "dontaudit"ing.
       $ semodule -DB
       # Turn "dontaudit" rules back on.
       $ semodule -B
       # Disable a module (all instances of given module across priorities will be disabled).
       $ semodule -d alsa
       # Install a module at a specific priority.
       $ semodule -X 100 -i alsa.pp
       # List all modules.
       $ semodule --list=full
       # Set an alternate path for the policy root
       $ semodule -B -p "/tmp"
       # Set an alternate path for the policy store root
       $ semodule -B -S "/tmp/var/lib/selinux"
       # Write the HLL version of puppet and the CIL version of wireshark
       # modules at priority 400 to the current working directory
       $ semodule -X 400 --hll -E puppet --cil -E wireshark
       # Check whether a module in "localmodule.pp" file is same as installed module "localmodule"
       $ /usr/libexec/selinux/hll/pp localmodule.pp | sha256sum
       $ semodule -l -m | grep localmodule

SEE ALSO         top

       checkmodule(8), semodule_package(8)

AUTHORS         top

       This manual page was written by Dan Walsh <dwalsh@redhat.com>.
       The program was written by Karl MacMillan <kmacmillan@tresys.com>, Joshua Brindle <jbrindle@tresys.com>, Jason Tang <jtang@tresys.com>

COLOPHON         top

       This page is part of the selinux (Security-Enhanced Linux user-
       space libraries and tools) project.  Information about the
       project can be found at 
       ⟨https://github.com/SELinuxProject/selinux/wiki⟩.  If you have a
       bug report for this manual page, see
       ⟨https://github.com/SELinuxProject/selinux/wiki/Contributing⟩.
       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/SELinuxProject/selinux⟩ on 2024-06-14.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2023-05-11.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

Security Enhanced Linux         Nov 2005                     SEMODULE(8)

Pages that refer to this page: selabel_file(5)checkmodule(8)genhomedircon(8)semanage-module(8)