46.2. Building a Local Policy Module

46.2. Building a Local Policy Module

The following section uses an actual example to demonstrate building a local policy module to address an issue with the current policy. This issue involves the ypbind init script, which executes the setsebool command, which in turn tries to use the terminal. This is generating the following denial:

type=AVC msg=audit(1164222416.269:22): avc:  denied  { use } for  pid=1940 comm="setsebool" name="0" dev=devpts ino=2 \
	scontext=system_u:system_r:semanage_t:s0 tcontext=system_u:system_r:init_t:s0 tclass=fd

Even though everything still works correctly (that is, it is not preventing any applications form running as intended), it does interrupt the normal work flow of the user. Creating a local policy module addresses this issue.


Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-5 because CentOS-5 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-5 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.