checkmodule.8

.TH CHECKMODULE 8
.SH NAME
checkmodule \- SELinux policy module compiler
.SH SYNOPSIS
.B checkmodule
.I "[\-h] [\-b] [\-m] [\-M] [\-U handle_unknown ] [\-V] [\-o output_file] [input_file]"
.SH "DESCRIPTION"
This manual page describes the
.BR checkmodule
command.
.PP
.B 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.

.SH OPTIONS
.TP
.B \-b,\-\-binary
Read an existing binary policy module file rather than a source policy
module file.  This option is a development/debugging aid.
.TP
.B \-h,\-\-help
Print usage.
.TP
.B \-m
Generate a non-base policy module.
.TP
.B \-M,\-\-mls
Enable the MLS/MCS support when checking and compiling the policy module.
.TP
.B \-V,\-\-version
 Show policy versions created by this program.  Note that you cannot currently build older versions.
.TP
.B \-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.
.TP
.B \-U,\-\-handle-unknown <action>
Specify how the kernel should handle unknown classes or permissions (deny, allow or reject).

.SH EXAMPLE
.nf
# Build a MLS/MCS-enabled non-base policy module.
$ checkmodule \-M \-m httpd.te \-o httpd.mod
.fi

.SH "SEE ALSO"
.B semodule(8), semodule_package(8)
SELinux documentation at http://www.nsa.gov/research/selinux,
especially "Configuring the SELinux Policy".


.SH AUTHOR
This manual page was copied from the checkpolicy man page 
written by Arpad Magosanyi <mag@bunuel.tii.matav.hu>, 
and edited by Dan Walsh <dwalsh@redhat.com>.
The program was written by Stephen Smalley <sds@epoch.ncsc.mil>.