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

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

########################################
## <interface name="hostname_transition">
##	<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>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`hostname_transition',`
	requires_block_template(`$0'_depend)

	allow $1 hostname_exec_t:file { getattr read execute };
	allow $1 hostname_t:process transition;
	type_transition $1 hostname_exec_t:process hostname_t;
	dontaudit $1 hostname_t:process { noatsecure siginh rlimitinh };

	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;
')

define(`hostname_transition_depend',`
	type hostname_t, hostname_exec_t;

	class file { getattr read execute };
	class process { transition noatsecure siginh rlimitinh sigchld };
	class fd use;
	class fifo_file rw_file_perms;
')

########################################
## <interface name="hostname_transition_add_role_use_terminal">
##	<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>
##	<infoflow type="write" weight="10"/>
## </interface>
#
define(`hostname_transition_add_role_use_terminal',`
	requires_block_template(`$0'_depend)

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

define(`hostname_transition_add_role_use_terminal_depend',`
	type hostname_t;

	class chr_file { getattr read write ioctl };
')

########################################
## <interface name="hostname_execute">
##     <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>
##     <infoflow type="write" weight="10"/>
## </interface>
#
#######################################
#
# hostname_execute(domain)
#
define(`hostname_execute',`
	requires_block_template(`$0'_depend)

	allow $1 hostname_exec_t:file { getattr read execute execute_no_trans };
')

define(`hostname_execute_depend',`
	type hostname_exec_t;

	class file { getattr read execute execute_no_trans };
')

## </module>