selinux-policy/policy/modules/services/tcpd.if

## <summary>Policy for TCP daemon.</summary>

########################################
## <summary>
##	Execute tcpd in the tcpd domain.
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`tcpd_domtrans',`
	gen_require(`
		type tcpd_t, tcpd_exec_t;
	')

	domtrans_pattern($1, tcpd_exec_t, tcpd_t)
')

########################################
## <summary>
##	Create a domain for services that
##	utilize tcp wrappers.
## </summary>
## <param name="domain">
##	<summary>
##	Type to be used as a domain.
##	</summary>
## </param>
## <param name="entry_point">
##	<summary>
##	Type of the program to be used as an entry point to this domain.
##	</summary>
## </param>
#
interface(`tcpd_wrapped_domain',`
	gen_require(`
		type tcpd_t;
		role system_r;
	')

	domtrans_pattern(tcpd_t, $2, $1)
	role system_r types $1;
')