checkmodule (8) Linux Manual Page
checkmodule – SELinux policy module compiler
Synopsis
checkmodule [-h] [-b] [-C] [-m] [-M] [-U handle_unknown ] [-V] [-o output_file] [input_file]
Description
This manual page describes the checkmodule command. checkmodule is a program that checks and compiles a SELinux security policy module into a binary representation. It can generate either a base policy module (default) or a non-base policy module (-m option); typically, you would build a non-base policy module to add to an existing module store that already has a base module provided by the base policy. Use semodule_package to combine this module with its optional file contexts to create a policy package, and then use semodule to install the module package into the module store and load the resulting policy.
Options
- -b,–binary
- Read an existing binary policy module file rather than a source policy module file. This option is a development/debugging aid.
- -C,–cil
- Write CIL policy file rather than binary policy file.
- -h,–help
- Print usage.
- -m
- Generate a non-base policy module.
- -M,–mls
- Enable the MLS/MCS support when checking and compiling the policy module.
- -V,–version
-
Show policy versions created by this program. Note that you cannot currently build older versions. - -o,–output filename
- Write a binary policy module file to the specified filename. Otherwise, checkmodule will only check the syntax of the module source file and will not generate a binary module at all.
- -U,–handle-unknown <action>
- Specify how the kernel should handle unknown classes or permissions (deny, allow or reject).
Example
# Build a MLS/MCS-enabled non-base policy module. $ checkmodule -M -m httpd.te -o httpd.mod
See Also
semodule(8), semodule_package(8) SELinux documentation at http://www.nsa.gov/research/selinux, especially "Configuring the SELinux Policy".
Author
This manual page was copied from the checkpolicy man page written by Arpad Magosanyi <mag [at] bunuel.tii.matav.hu>, and edited by Dan Walsh <dwalsh [at] redhat.com>. The program was written by Stephen Smalley <sds [at] epoch.ncsc.mil>.