SELinux has one Boolean for dhcpd:
dhcpd_disable_trans. This is
the standard Boolean for all targeted daemons, allowing you to
disable the transition from unconfined_t to dhcpd_t. The value of this Boolean is set
to false by default.
This Boolean can be changed via the system-config-securitylevel application or the
/usr/sbin/setsebool -P dhcpd_disable_trans
Booleans are explained in Section 3.2 Files and Directories
of the Targeted Policy.