policy_module(sysnetwork, 1.7.1)

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

#

# Declarations

#

# this is shared between dhcpc and dhcpd:

type dhcp_etc_t;

typealias dhcp_etc_t alias { etc_dhcp_t etc_dhcpc_t etc_dhcpd_t };

files_config_file(dhcp_etc_t)

# this is shared between dhcpc and dhcpd:

type dhcp_state_t;

files_type(dhcp_state_t)

type dhcpc_t;

type dhcpc_exec_t;

init_daemon_domain(dhcpc_t,dhcpc_exec_t)

role system_r types dhcpc_t;

type dhcpc_state_t;

files_type(dhcpc_state_t)

type dhcpc_tmp_t;

files_tmp_file(dhcpc_tmp_t)

type dhcpc_var_run_t;

files_pid_file(dhcpc_var_run_t)

type ifconfig_t;

type ifconfig_exec_t;

init_system_domain(ifconfig_t, ifconfig_exec_t)

role system_r types ifconfig_t;

type net_conf_t alias resolv_conf_t;

files_type(net_conf_t)

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

#

# DHCP client local policy

#

allow dhcpc_t self:capability { dac_override fsetid net_admin net_raw net_bind_service sys_resource sys_tty_config };

dontaudit dhcpc_t self:capability sys_tty_config;

# for access("/etc/bashrc", X_OK) on Red Hat

dontaudit dhcpc_t self:capability { dac_read_search sys_module };

allow dhcpc_t self:process signal_perms;

allow dhcpc_t self:fifo_file rw_file_perms;

allow dhcpc_t self:tcp_socket create_stream_socket_perms;

allow dhcpc_t self:udp_socket create_socket_perms;

allow dhcpc_t self:packet_socket create_socket_perms;

allow dhcpc_t self:netlink_route_socket { create_socket_perms nlmsg_read nlmsg_write };

allow dhcpc_t dhcp_etc_t:dir list_dir_perms;

read_lnk_files_pattern(dhcpc_t,dhcp_etc_t,dhcp_etc_t)

exec_files_pattern(dhcpc_t,dhcp_etc_t,dhcp_etc_t)

allow dhcpc_t dhcp_state_t:file { getattr read };

manage_files_pattern(dhcpc_t,dhcpc_state_t,dhcpc_state_t)

filetrans_pattern(dhcpc_t,dhcp_state_t,dhcpc_state_t,file)

# create pid file

manage_files_pattern(dhcpc_t,dhcpc_var_run_t,dhcpc_var_run_t)

files_pid_filetrans(dhcpc_t,dhcpc_var_run_t,file)

# Allow read/write to /etc/resolv.conf and /etc/ntp.conf. Note that any files

# in /etc created by dhcpcd will be labelled net_conf_t.

allow dhcpc_t net_conf_t:file manage_file_perms;

files_etc_filetrans(dhcpc_t,net_conf_t,file)

# create temp files

manage_dirs_pattern(dhcpc_t,dhcpc_tmp_t,dhcpc_tmp_t)

manage_files_pattern(dhcpc_t,dhcpc_tmp_t,dhcpc_tmp_t)

files_tmp_filetrans(dhcpc_t, dhcpc_tmp_t, { file dir })

can_exec(dhcpc_t, dhcpc_exec_t)

# transition to ifconfig

domtrans_pattern(dhcpc_t, ifconfig_exec_t, ifconfig_t)

kernel_read_system_state(dhcpc_t)

kernel_read_network_state(dhcpc_t)

kernel_read_kernel_sysctls(dhcpc_t)

kernel_use_fds(dhcpc_t)

corenet_all_recvfrom_unlabeled(dhcpc_t)

corenet_all_recvfrom_netlabel(dhcpc_t)

corenet_tcp_sendrecv_all_if(dhcpc_t)

corenet_raw_sendrecv_all_if(dhcpc_t)

corenet_udp_sendrecv_all_if(dhcpc_t)

corenet_tcp_sendrecv_all_nodes(dhcpc_t)

corenet_raw_sendrecv_all_nodes(dhcpc_t)

corenet_udp_sendrecv_all_nodes(dhcpc_t)

corenet_tcp_sendrecv_all_ports(dhcpc_t)

corenet_udp_sendrecv_all_ports(dhcpc_t)

corenet_tcp_bind_all_nodes(dhcpc_t)

corenet_udp_bind_all_nodes(dhcpc_t)

corenet_udp_bind_dhcpc_port(dhcpc_t)

corenet_tcp_connect_all_ports(dhcpc_t)

corenet_sendrecv_dhcpd_client_packets(dhcpc_t)

corenet_sendrecv_dhcpc_server_packets(dhcpc_t)

dev_read_sysfs(dhcpc_t)

# for SSP:

dev_read_urand(dhcpc_t)

fs_getattr_all_fs(dhcpc_t)

fs_search_auto_mountpoints(dhcpc_t)

term_dontaudit_use_all_user_ttys(dhcpc_t)

term_dontaudit_use_all_user_ptys(dhcpc_t)

term_dontaudit_use_unallocated_ttys(dhcpc_t)

term_dontaudit_use_generic_ptys(dhcpc_t)

corecmd_exec_bin(dhcpc_t)

corecmd_exec_shell(dhcpc_t)

domain_use_interactive_fds(dhcpc_t)

domain_dontaudit_list_all_domains_state(dhcpc_t)

files_read_etc_files(dhcpc_t)

files_read_etc_runtime_files(dhcpc_t)

files_search_home(dhcpc_t)

files_search_var_lib(dhcpc_t)

files_dontaudit_search_locks(dhcpc_t)

init_rw_utmp(dhcpc_t)

logging_send_syslog_msg(dhcpc_t)

libs_use_ld_so(dhcpc_t)

libs_use_shared_libs(dhcpc_t)

miscfiles_read_localization(dhcpc_t)

modutils_domtrans_insmod(dhcpc_t)

staff_dontaudit_search_home_dirs(dhcpc_t)

ifdef(`distro_redhat', `

	files_exec_etc_files(dhcpc_t)

')

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(dhcpc_t)

	')

')

optional_policy(`

	consoletype_domtrans(dhcpc_t)

')

optional_policy(`

	init_dbus_chat_script(dhcpc_t)

	dbus_system_bus_client_template(dhcpc,dhcpc_t)

	dbus_connect_system_bus(dhcpc_t)

	optional_policy(`

		networkmanager_dbus_chat(dhcpc_t)

	')

')

optional_policy(`

	hostname_domtrans(dhcpc_t)

')

optional_policy(`

	hotplug_getattr_config_dirs(dhcpc_t)

	hotplug_search_config(dhcpc_t)

	ifdef(`distro_redhat',`

		logging_domtrans_syslog(dhcpc_t)

	')

')

# for the dhcp client to run ping to check IP addresses

optional_policy(`

	netutils_domtrans_ping(dhcpc_t)

	netutils_domtrans(dhcpc_t)

',`

	allow dhcpc_t self:capability setuid;

	allow dhcpc_t self:rawip_socket create_socket_perms;

')

optional_policy(`

	nis_use_ypbind(dhcpc_t)

	nis_signal_ypbind(dhcpc_t)

	nis_read_ypbind_pid(dhcpc_t)

	nis_delete_ypbind_pid(dhcpc_t)

	# dhclient sometimes starts ypbind

	init_exec_script_files(dhcpc_t)

	nis_domtrans_ypbind(dhcpc_t)

')

optional_policy(`

	nscd_domtrans(dhcpc_t)

	nscd_read_pid(dhcpc_t)

')

optional_policy(`

	# dhclient sometimes starts ntpd

	init_exec_script_files(dhcpc_t)

	ntp_domtrans(dhcpc_t)

')

optional_policy(`

	pcmcia_stub(dhcpc_t)

	dev_rw_cardmgr(dhcpc_t)

')

optional_policy(`

	seutil_sigchld_newrole(dhcpc_t)

	seutil_dontaudit_search_config(dhcpc_t)

')

optional_policy(`

	udev_read_db(dhcpc_t)

')

optional_policy(`

	userdom_use_all_users_fds(dhcpc_t)

')

optional_policy(`

	kernel_read_xen_state(dhcpc_t)

	kernel_write_xen_state(dhcpc_t)

	xen_append_log(dhcpc_t)

	xen_dontaudit_rw_unix_stream_sockets(dhcpc_t)

')

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

#

# Ifconfig local policy

#

allow ifconfig_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execheap execstack };

allow ifconfig_t self:capability { net_raw net_admin sys_tty_config };

dontaudit ifconfig_t self:capability sys_module;

allow ifconfig_t self:fd use;

allow ifconfig_t self:fifo_file rw_fifo_file_perms;

allow ifconfig_t self:sock_file read_sock_file_perms;

allow ifconfig_t self:socket create_socket_perms;

allow ifconfig_t self:unix_dgram_socket create_socket_perms;

allow ifconfig_t self:unix_stream_socket create_stream_socket_perms;

allow ifconfig_t self:unix_dgram_socket sendto;

allow ifconfig_t self:unix_stream_socket connectto;

allow ifconfig_t self:shm create_shm_perms;

allow ifconfig_t self:sem create_sem_perms;

allow ifconfig_t self:msgq create_msgq_perms;

allow ifconfig_t self:msg { send receive };

# Create UDP sockets, necessary when called from dhcpc

allow ifconfig_t self:udp_socket create_socket_perms;

# for /sbin/ip

allow ifconfig_t self:packet_socket create_socket_perms;

allow ifconfig_t self:netlink_route_socket create_netlink_socket_perms;

allow ifconfig_t self:netlink_xfrm_socket { create_netlink_socket_perms nlmsg_read };

allow ifconfig_t self:tcp_socket { create ioctl };

files_read_etc_files(ifconfig_t);

kernel_use_fds(ifconfig_t)

kernel_read_system_state(ifconfig_t)

kernel_read_network_state(ifconfig_t)

kernel_search_network_sysctl(ifconfig_t)

kernel_rw_net_sysctls(ifconfig_t)

corenet_rw_tun_tap_dev(ifconfig_t)

dev_read_sysfs(ifconfig_t)

# for IPSEC setup:

dev_read_urand(ifconfig_t)

fs_getattr_xattr_fs(ifconfig_t)

fs_search_auto_mountpoints(ifconfig_t)

term_dontaudit_use_all_user_ttys(ifconfig_t)

term_dontaudit_use_all_user_ptys(ifconfig_t)

domain_use_interactive_fds(ifconfig_t)

files_dontaudit_read_root_files(ifconfig_t)

init_use_fds(ifconfig_t)

init_use_script_ptys(ifconfig_t)

libs_use_ld_so(ifconfig_t)

libs_use_shared_libs(ifconfig_t)

libs_read_lib_files(ifconfig_t)

logging_send_syslog_msg(ifconfig_t)

miscfiles_read_localization(ifconfig_t)

modutils_domtrans_insmod(ifconfig_t)

seutil_use_runinit_fds(ifconfig_t)

userdom_use_all_users_fds(ifconfig_t)

ifdef(`distro_ubuntu',`

	optional_policy(`

		unconfined_domain(ifconfig_t)

	')

')

ifdef(`hide_broken_symptoms',`

	optional_policy(`

		dev_dontaudit_rw_cardmgr(ifconfig_t)

	')

	optional_policy(`

		udev_dontaudit_rw_dgram_sockets(ifconfig_t)

	')

')

optional_policy(`

	ipsec_write_pid(ifconfig_t)

')

optional_policy(`

	netutils_domtrans(dhcpc_t)

')

optional_policy(`

	nis_use_ypbind(ifconfig_t)

')

optional_policy(`

	ppp_use_fds(ifconfig_t)

')

optional_policy(`

	kernel_read_xen_state(ifconfig_t)

	kernel_write_xen_state(ifconfig_t)

	xen_append_log(ifconfig_t)

	xen_dontaudit_rw_unix_stream_sockets(ifconfig_t)

')