policy_module(bind, 1.11.0)

########################################

#

# Declarations

#

## <desc>

## 

## Allow BIND to write the master zone files.

## Generally this is used for dynamic DNS or zone transfers.

## 

## </desc>

gen_tunable(named_write_master_zones, false)

# for DNSSEC key files

type dnssec_t;

files_security_file(dnssec_t)

type named_t;

type named_exec_t;

init_daemon_domain(named_t, named_exec_t)

role system_r types named_t;

type named_checkconf_exec_t;

init_system_domain(named_t, named_checkconf_exec_t)

# A type for configuration files of named.

type named_conf_t;

files_type(named_conf_t)

files_mountpoint(named_conf_t)

# for secondary zone files

type named_cache_t;

files_type(named_cache_t)

type named_initrc_exec_t;

init_script_file(named_initrc_exec_t)

type named_log_t;

logging_log_file(named_log_t)

type named_tmp_t;

files_tmp_file(named_tmp_t)

type named_var_run_t;

files_pid_file(named_var_run_t)

# for primary zone files

type named_zone_t;

files_type(named_zone_t)

type ndc_t;

type ndc_exec_t;

init_system_domain(ndc_t, ndc_exec_t)

role system_r types ndc_t;

########################################

#

# Named local policy

#

allow named_t self:capability { chown dac_override fowner setgid setuid sys_chroot sys_nice sys_resource };

dontaudit named_t self:capability sys_tty_config;

allow named_t self:process { setsched getcap setcap setrlimit signal_perms };

allow named_t self:fifo_file rw_fifo_file_perms;

allow named_t self:unix_stream_socket create_stream_socket_perms;

allow named_t self:unix_dgram_socket create_socket_perms;

allow named_t self:tcp_socket create_stream_socket_perms;

allow named_t self:udp_socket create_socket_perms;

allow named_t dnssec_t:file read_file_perms;

# read configuration

allow named_t named_conf_t:dir list_dir_perms;

read_files_pattern(named_t, named_conf_t, named_conf_t)

read_lnk_files_pattern(named_t, named_conf_t, named_conf_t)

# write cache for secondary zones

manage_files_pattern(named_t, named_cache_t, named_cache_t)

manage_lnk_files_pattern(named_t, named_cache_t, named_cache_t)

can_exec(named_t, named_exec_t)

manage_files_pattern(named_t, named_log_t, named_log_t)

logging_log_filetrans(named_t, named_log_t, { file dir })

manage_dirs_pattern(named_t, named_tmp_t, named_tmp_t)

manage_files_pattern(named_t, named_tmp_t, named_tmp_t)

files_tmp_filetrans(named_t, named_tmp_t, { file dir })

manage_dirs_pattern(named_t, named_var_run_t, named_var_run_t)

manage_files_pattern(named_t, named_var_run_t, named_var_run_t)

manage_sock_files_pattern(named_t, named_var_run_t, named_var_run_t)

files_pid_filetrans(named_t, named_var_run_t, { file sock_file dir })

# read zone files

allow named_t named_zone_t:dir list_dir_perms;

read_files_pattern(named_t, named_zone_t, named_zone_t)

read_lnk_files_pattern(named_t, named_zone_t, named_zone_t)

kernel_read_kernel_sysctls(named_t)

kernel_read_system_state(named_t)

kernel_read_network_state(named_t)

corecmd_search_bin(named_t)

corenet_all_recvfrom_unlabeled(named_t)

corenet_all_recvfrom_netlabel(named_t)

corenet_tcp_sendrecv_generic_if(named_t)

corenet_udp_sendrecv_generic_if(named_t)

corenet_tcp_sendrecv_generic_node(named_t)

corenet_udp_sendrecv_generic_node(named_t)

corenet_tcp_sendrecv_all_ports(named_t)

corenet_udp_sendrecv_all_ports(named_t)

corenet_tcp_bind_generic_node(named_t)

corenet_udp_bind_generic_node(named_t)

corenet_tcp_bind_dns_port(named_t)

corenet_udp_bind_dns_port(named_t)

corenet_tcp_bind_rndc_port(named_t)

corenet_tcp_connect_all_ports(named_t)

corenet_sendrecv_dns_server_packets(named_t)

corenet_sendrecv_dns_client_packets(named_t)

corenet_sendrecv_rndc_server_packets(named_t)

corenet_sendrecv_rndc_client_packets(named_t)

corenet_dontaudit_udp_bind_all_reserved_ports(named_t)

corenet_udp_bind_all_unreserved_ports(named_t)

dev_read_sysfs(named_t)

dev_read_rand(named_t)

dev_read_urand(named_t)

domain_use_interactive_fds(named_t)

files_read_etc_files(named_t)

files_read_etc_runtime_files(named_t)

fs_getattr_all_fs(named_t)

fs_search_auto_mountpoints(named_t)

auth_use_nsswitch(named_t)

logging_send_syslog_msg(named_t)

miscfiles_read_localization(named_t)

miscfiles_read_certs(named_t)

userdom_dontaudit_use_unpriv_user_fds(named_t)

userdom_dontaudit_search_user_home_dirs(named_t)

tunable_policy(`named_write_master_zones',`

	manage_dirs_pattern(named_t, named_zone_t, named_zone_t)

	manage_files_pattern(named_t, named_zone_t, named_zone_t)

	manage_lnk_files_pattern(named_t, named_zone_t, named_zone_t)

')

optional_policy(`

	init_dbus_chat_script(named_t)

	sysnet_dbus_chat_dhcpc(named_t)

	dbus_system_bus_client(named_t)

	dbus_connect_system_bus(named_t)

	optional_policy(`

		networkmanager_dbus_chat(named_t)

	')

')

optional_policy(`

	kerberos_keytab_template(named, named_t)

')

optional_policy(`

	# this seems like fds that arent being

	# closed. these should probably be

	# dontaudits instead.

	networkmanager_rw_udp_sockets(named_t)

	networkmanager_rw_packet_sockets(named_t)

	networkmanager_rw_routing_sockets(named_t)

')

optional_policy(`

	seutil_sigchld_newrole(named_t)

')

optional_policy(`

	udev_read_db(named_t)

')

########################################

#

# NDC local policy

#

# cjp: why net_admin?!

allow ndc_t self:capability { dac_override net_admin };

allow ndc_t self:process { fork signal_perms };

allow ndc_t self:fifo_file rw_fifo_file_perms;

allow ndc_t self:unix_stream_socket { connect create_stream_socket_perms };

allow ndc_t self:tcp_socket create_socket_perms;

allow ndc_t self:netlink_route_socket r_netlink_socket_perms;

allow ndc_t dnssec_t:file read_file_perms;

allow ndc_t dnssec_t:lnk_file { getattr read };

stream_connect_pattern(ndc_t, named_var_run_t, named_var_run_t, named_t)

allow ndc_t named_conf_t:file read_file_perms;

allow ndc_t named_conf_t:lnk_file { getattr read };

allow ndc_t named_zone_t:dir search_dir_perms;

kernel_read_kernel_sysctls(ndc_t)

corenet_all_recvfrom_unlabeled(ndc_t)

corenet_all_recvfrom_netlabel(ndc_t)

corenet_tcp_sendrecv_generic_if(ndc_t)

corenet_tcp_sendrecv_generic_node(ndc_t)

corenet_tcp_sendrecv_all_ports(ndc_t)

corenet_tcp_bind_generic_node(ndc_t)

corenet_tcp_connect_rndc_port(ndc_t)

corenet_sendrecv_rndc_client_packets(ndc_t)

domain_use_interactive_fds(ndc_t)

files_read_etc_files(ndc_t)

files_search_pids(ndc_t)

fs_getattr_xattr_fs(ndc_t)

init_use_fds(ndc_t)

init_use_script_ptys(ndc_t)

logging_send_syslog_msg(ndc_t)

miscfiles_read_localization(ndc_t)

sysnet_read_config(ndc_t)

sysnet_dns_name_resolve(ndc_t)

userdom_use_user_terminals(ndc_t)

term_dontaudit_use_console(ndc_t)

# for /etc/rndc.key

ifdef(`distro_redhat',`

	allow ndc_t named_conf_t:dir search;

')

optional_policy(`

	nis_use_ypbind(ndc_t)

')

optional_policy(`

	nscd_socket_use(ndc_t)

')

optional_policy(`

	ppp_dontaudit_use_fds(ndc_t)

')