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

## <module name="iptables" layer="system">
## <summary>Policy for iptables.</summary>

########################################
## <interface name="iptables_domtrans">
##	<description>
##		Execute iptables in the iptables domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`iptables_domtrans',`
	requires_block_template(`$0'_depend)

	allow $1 iptables_exec_t:file rx_file_perms;
	allow $1 iptables_t:process transition;
	type_transition $1 iptables_exec_t:process iptables_t;
	dontaudit $1 iptables_t:process { noatsecure siginh rlimitinh };

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

define(`iptables_domtrans_depend',`
	type iptables_t, iptables_exec_t;

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

########################################
## <interface name="iptables_run">
##	<description>
##		Execute iptables in the iptables domain, and
##		allow the specified role the iptables domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
##	<parameter name="role">
##		The role to be allowed the iptables domain.
##	</parameter>
##	<parameter name="terminal">
##		The type of the terminal allow the iptables domain to use.
##	</parameter>
## </interface>
#
define(`iptables_run',`
	requires_block_template(`$0'_depend)

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

define(`iptables_run_depend',`
	type iptables_t;

	class chr_file { getattr read write ioctl };
')

########################################
## <interface name="iptables_exec">
##	<description>
##		Execute iptables in the caller domain.
##	</description>
##	<parameter name="domain">
##		The type of the process performing this action.
##	</parameter>
## </interface>
#
define(`iptables_exec',`
	requires_block_template(`$0'_depend)

	can_exec($1,iptables_exec_t)

')

define(`iptables_exec_depend',`
	type iptables_t, iptables_exec_t;

	class file { getattr read execute execute_no_trans };
')

## </module>