selinux-policy/refpolicy/policy/modules/system/hostname.if

## <module name="hostname">
## <summary>Policy for changing the system host name.</summary>

########################################
## <interface name="hostname_domtrans">
##	<description>
##		Execute hostname in the hostname domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##		Has a sigchld signal backchannel.
##	</parameter>
## </interface>
#
interface(`hostname_domtrans',`
	gen_require(`
		type hostname_t, hostname_exec_t;
		class process sigchld;
		class fd use;
		class fifo_file rw_file_perms;
	')

	corecmd_search_bin($1)
	domain_auto_trans($1,hostname_exec_t,hostname_t)

	allow $1 hostname_t:fd use;
	allow hostname_t $1:fd use;
	allow hostname_t $1:fifo_file rw_file_perms;
	allow hostname_t $1:process sigchld;
')

########################################
## <interface name="hostname_run">
##	<description>
##		Execute hostname in the hostname domain, and
##		allow the specified role the hostname domain.
##		Has a sigchld signal backchannel.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="role">
##		The role to be allowed the hostname domain.
##	</parameter>
##	<parameter name="terminal">
##		The type of the terminal allow the hostname domain to use.
##	</parameter>
## </interface>
#
interface(`hostname_run',`
	gen_require(`
		type hostname_t;
		class chr_file { getattr read write ioctl };
	')

	hostname_domtrans($1)
	role $2 types hostname_t;
	allow hostname_t $3:chr_file { getattr read write ioctl };
')

########################################
## <interface name="hostname_exec">
##     <description>
##             Execute hostname in the hostname domain, and
##             Has a sigchld signal backchannel.
##     </description>
##     <parameter name="domain">
##             The type of the process performing this action.
##     </parameter>
## </interface>
#
interface(`hostname_exec',`
	gen_require(`
		type hostname_exec_t;
	')

	can_exec($1,hostname_exec_t)
')

## </module>