policy_module(sysnetwork, 1.15.4)

########################################
#
# Declarations
#

## <desc>
## <p>
## Allow dhcpc client applications to execute iptables commands
## </p>
## </desc>
gen_tunable(dhcpc_exec_iptables, false)

attribute_role dhcpc_roles;
roleattribute system_r dhcpc_roles;

# 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)

type dhcpc_helper_exec_t;
init_script_file(dhcpc_helper_exec_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 ifconfig_var_run_t;
files_pid_file(ifconfig_var_run_t)
files_mountpoint(ifconfig_var_run_t)

type net_conf_t alias resolv_conf_t;
files_config_file(net_conf_t)

ifdef(`distro_debian',`
	init_daemon_run_dir(net_conf_t, "network")
')

########################################
#
# DHCP client local policy
#
allow dhcpc_t self:capability { dac_read_search fsetid net_admin net_raw net_bind_service setgid setpcap setuid sys_chroot sys_nice sys_resource sys_tty_config };
dontaudit dhcpc_t self:capability sys_admin;
# for access("/etc/bashrc", X_OK) on Red Hat
dontaudit dhcpc_t self:capability { dac_read_search sys_module };
allow dhcpc_t self:process { getsched setsched getcap setcap setfscreate setrlimit signal_perms };
allow dhcpc_t self:cap_userns { net_bind_service };

allow dhcpc_t self:fifo_file rw_fifo_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:rawip_socket create_socket_perms;
allow dhcpc_t self:netlink_generic_socket create_socket_perms;
allow dhcpc_t self:netlink_route_socket { create_socket_perms nlmsg_read nlmsg_write };
allow dhcpc_t self:netlink_kobject_uevent_socket create_socket_perms;
allow dhcpc_t self:unix_dgram_socket sendto;

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 read_file_perms;
allow dhcpc_t dhcp_state_t:file relabel_file_perms;

manage_files_pattern(dhcpc_t, dhcpc_state_t, dhcpc_state_t)
filetrans_pattern(dhcpc_t, dhcp_state_t, dhcpc_state_t, file)
allow dhcpc_t dhcpc_state_t:file { map relabel_file_perms };

# create pid file
manage_files_pattern(dhcpc_t, dhcpc_var_run_t, dhcpc_var_run_t)
manage_sock_files_pattern(dhcpc_t, dhcpc_var_run_t, dhcpc_var_run_t)
create_dirs_pattern(dhcpc_t, dhcpc_var_run_t, dhcpc_var_run_t)
files_pid_filetrans(dhcpc_t, dhcpc_var_run_t, { file dir sock_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;
allow dhcpc_t net_conf_t:file relabel_file_perms;
sysnet_manage_config(dhcpc_t)
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)

kernel_read_system_state(dhcpc_t)
kernel_read_network_state(dhcpc_t)
kernel_search_network_sysctl(dhcpc_t)
kernel_read_kernel_sysctls(dhcpc_t)
kernel_request_load_module(dhcpc_t)
kernel_use_fds(dhcpc_t)
kernel_rw_net_sysctls(dhcpc_t)

corecmd_exec_bin(dhcpc_t)
corecmd_exec_shell(dhcpc_t)

corenet_all_recvfrom_netlabel(dhcpc_t)
corenet_tcp_sendrecv_generic_if(dhcpc_t)
corenet_raw_sendrecv_generic_if(dhcpc_t)
corenet_udp_sendrecv_generic_if(dhcpc_t)
corenet_tcp_sendrecv_generic_node(dhcpc_t)
corenet_raw_sendrecv_generic_node(dhcpc_t)
corenet_udp_sendrecv_generic_node(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_tcp_bind_dhcpc_port(dhcpc_t)
corenet_udp_bind_dhcpc_port(dhcpc_t)
corenet_udp_bind_all_unreserved_ports(dhcpc_t)
corenet_tcp_connect_all_ports(dhcpc_t)
corenet_sendrecv_dhcpd_client_packets(dhcpc_t)
corenet_sendrecv_dhcpc_server_packets(dhcpc_t)
corenet_sendrecv_all_server_packets(dhcpc_t)
corenet_dontaudit_udp_bind_all_reserved_ports(dhcpc_t)

dev_read_sysfs(dhcpc_t)
# for SSP:
dev_read_urand(dhcpc_t)
dev_read_rand(dhcpc_t)


domain_obj_id_change_exemption(dhcpc_t)
domain_use_interactive_fds(dhcpc_t)
domain_dontaudit_read_all_domains_state(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)
files_getattr_generic_locks(dhcpc_t)
files_rw_inherited_tmp_file(dhcpc_t)
files_dontaudit_rw_inherited_locks(dhcpc_t)

fs_getattr_all_fs(dhcpc_t)
fs_getattr_nsfs_files(dhcpc_t)
fs_search_auto_mountpoints(dhcpc_t)

term_dontaudit_use_all_ttys(dhcpc_t)
term_dontaudit_use_all_ptys(dhcpc_t)
term_dontaudit_use_unallocated_ttys(dhcpc_t)
term_dontaudit_use_generic_ptys(dhcpc_t)

auth_use_nsswitch(dhcpc_t)

init_rw_utmp(dhcpc_t)
init_stream_connect(dhcpc_t)
init_stream_send(dhcpc_t)

libs_exec_ldconfig(dhcpc_t)

logging_send_syslog_msg(dhcpc_t)

miscfiles_read_generic_certs(dhcpc_t)

modutils_run_kmod(dhcpc_t, dhcpc_roles)

sysnet_run_ifconfig(dhcpc_t, dhcpc_roles)

userdom_stream_connect(dhcpc_t)
userdom_use_user_terminals(dhcpc_t)
userdom_dontaudit_search_user_home_dirs(dhcpc_t)

ifdef(`distro_redhat', `
	files_exec_etc_files(dhcpc_t)
')

ifdef(`distro_ubuntu',`
	optional_policy(`
		unconfined_domain(dhcpc_t)
	')
')

optional_policy(`
	chronyd_initrc_domtrans(dhcpc_t)
	chronyd_systemctl(dhcpc_t)
	chronyd_domtrans(dhcpc_t)
	chronyd_domtrans_chronyc(dhcpc_t)
	chronyd_manage_pid_files(dhcpc_t)
	chronyd_pid_filetrans(dhcpc_t)
	chronyd_read_keys(dhcpc_t)
')

optional_policy(`
	cloudform_init_domtrans(dhcpc_t)
	cloudform_read_lib_files(dhcpc_t)
	cloudform_read_lib_lnk_files(dhcpc_t)
')

optional_policy(`
	devicekit_dontaudit_rw_log(dhcpc_t)
	devicekit_dontaudit_read_pid_files(dhcpc_t)
')

optional_policy(`
	dbus_system_domain(dhcpc_t, dhcpc_exec_t)

	init_dbus_chat_script(dhcpc_t)

	optional_policy(`
		networkmanager_dbus_chat(dhcpc_t)
	')
')

optional_policy(`
	hostname_run(dhcpc_t, dhcpc_roles)
')

# for the dhcp client to run ping to check IP addresses
optional_policy(`
	netutils_run_ping(dhcpc_t, dhcpc_roles)
	netutils_run(dhcpc_t, dhcpc_roles)
')

optional_policy(`
	networkmanager_domtrans(dhcpc_t)
	networkmanager_manage_pid_files(dhcpc_t)
	networkmanager_manage_lib(dhcpc_t)
    networkmanager_stream_connect(dhcpc_t)
')

optional_policy(`
	nis_initrc_domtrans_ypbind(dhcpc_t)
	nis_read_ypbind_pid(dhcpc_t)
	nis_systemctl_ypbind(dhcpc_t)
')

optional_policy(`
	nscd_initrc_domtrans(dhcpc_t)
	nscd_systemctl(dhcpc_t)
	nscd_domtrans(dhcpc_t)
	nscd_read_pid(dhcpc_t)
')

optional_policy(`
	ntp_initrc_domtrans(dhcpc_t)
	ntp_systemctl(dhcpc_t)
')

optional_policy(`
	pcmcia_stub(dhcpc_t)
	dev_rw_cardmgr(dhcpc_t)
')

optional_policy(`
	seutil_sigchld_newrole(dhcpc_t)
	seutil_domtrans_setfiles(dhcpc_t)
')

optional_policy(`
	systemd_dbus_chat_hostnamed(dhcpc_t)
')

optional_policy(`
	systemd_passwd_agent_domtrans(dhcpc_t)
	systemd_signal_passwd_agent(dhcpc_t)
')

optional_policy(`
	udev_read_db(dhcpc_t)
')

optional_policy(`
	userdom_use_all_users_fds(dhcpc_t)
')

optional_policy(`
	virt_manage_pid_files(dhcpc_t)
')

optional_policy(`
	vmware_append_log(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:capability { net_raw net_admin sys_admin sys_tty_config };
allow ifconfig_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execheap execstack };
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;
allow ifconfig_t self:appletalk_socket create_socket_perms;
# for /sbin/ip
allow ifconfig_t self:packet_socket create_socket_perms;
allow ifconfig_t self:netlink_socket create_socket_perms;
allow ifconfig_t self:netlink_generic_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:tun_socket { relabelfrom relabelto create_socket_perms };

allow ifconfig_t self:tcp_socket { create ioctl };

can_exec(ifconfig_t, ifconfig_exec_t)

manage_files_pattern(ifconfig_t, ifconfig_var_run_t, ifconfig_var_run_t)
manage_lnk_files_pattern(ifconfig_t, ifconfig_var_run_t, ifconfig_var_run_t)
create_dirs_pattern(ifconfig_t, ifconfig_var_run_t, ifconfig_var_run_t)
files_pid_filetrans(ifconfig_t, ifconfig_var_run_t, { file dir })
allow ifconfig_t ifconfig_var_run_t:file mounton;
allow ifconfig_t ifconfig_var_run_t:dir mounton;

kernel_use_fds(ifconfig_t)
kernel_read_system_state(ifconfig_t)
kernel_read_network_state(ifconfig_t)
kernel_request_load_module(ifconfig_t)
kernel_search_network_sysctl(ifconfig_t)
kernel_rw_net_sysctls(ifconfig_t)
kernel_unmount_proc(ifconfig_t)

corenet_rw_tun_tap_dev(ifconfig_t)

corecmd_exec_bin(ifconfig_t)
corecmd_exec_shell(ifconfig_t)

dev_read_sysfs(ifconfig_t)
# for IPSEC setup:
dev_read_urand(ifconfig_t)
dev_read_rand(ifconfig_t)
# needed by tuned
dev_rw_netcontrol(ifconfig_t)
dev_mounton_sysfs(ifconfig_t)
dev_mount_sysfs_fs(ifconfig_t)
dev_unmount_sysfs_fs(ifconfig_t)

domain_use_interactive_fds(ifconfig_t)
domain_read_all_domains_state(ifconfig_t)

read_files_pattern(ifconfig_t, dhcpc_state_t, dhcpc_state_t)

files_dontaudit_rw_inherited_pipes(ifconfig_t)
files_dontaudit_rw_inherited_locks(ifconfig_t)
files_dontaudit_read_root_files(ifconfig_t)
files_rw_inherited_tmp_file(ifconfig_t)
files_dontaudit_rw_var_files(ifconfig_t)

files_mounton_rootfs(ifconfig_t)

files_read_etc_files(ifconfig_t)
files_read_etc_runtime_files(ifconfig_t)
files_read_usr_files(ifconfig_t)

fs_getattr_xattr_fs(ifconfig_t)
fs_unmount_xattr_fs(ifconfig_t)
fs_search_auto_mountpoints(ifconfig_t)
fs_read_nsfs_files(ifconfig_t)
fs_mount_nsfs(ifconfig_t)
fs_unmount_nsfs(ifconfig_t)

selinux_dontaudit_getattr_fs(ifconfig_t)

term_dontaudit_use_console(ifconfig_t)
term_dontaudit_use_all_ttys(ifconfig_t)
term_dontaudit_use_all_ptys(ifconfig_t)
term_dontaudit_use_ptmx(ifconfig_t)
term_dontaudit_use_generic_ptys(ifconfig_t)

auth_use_nsswitch(ifconfig_t)

init_use_fds(ifconfig_t)
init_use_script_ptys(ifconfig_t)
init_rw_inherited_script_tmp_files(ifconfig_t)

libs_read_lib_files(ifconfig_t)

logging_send_syslog_msg(ifconfig_t)

seutil_use_runinit_fds(ifconfig_t)

sysnet_dns_name_resolve(ifconfig_t)
sysnet_dontaudit_rw_dhcpc_udp_sockets(ifconfig_t)
sysnet_filetrans_named_content_ifconfig(ifconfig_t)

userdom_use_inherited_user_terminals(ifconfig_t)
userdom_use_all_users_fds(ifconfig_t)

optional_policy(`
	hostname_exec(ifconfig_t)
')

ifdef(`distro_ubuntu',`
	optional_policy(`
		unconfined_domain(ifconfig_t)
	')
')

optional_policy(`
	brctl_domtrans(ifconfig_t)
')

optional_policy(`
	cfengine_dontaudit_write_log(ifconfig_t)
')

optional_policy(`
	ctdbd_read_lib_files(ifconfig_t)
')

ifdef(`hide_broken_symptoms',`
	# caused by some bogus kernel code
	dontaudit ifconfig_t self:capability sys_module;

	optional_policy(`
		dev_dontaudit_rw_cardmgr(ifconfig_t)
	')

	optional_policy(`
		udev_dontaudit_rw_dgram_sockets(ifconfig_t)
	')
')

optional_policy(`
    dnsmasq_domtrans(ifconfig_t)
')

optional_policy(`
	devicekit_dontaudit_read_pid_files(ifconfig_t)
')

optional_policy(`
	ipsec_write_pid(ifconfig_t)
	ipsec_setcontext_default_spd(ifconfig_t)
')

optional_policy(`
	kdump_dontaudit_read_config(ifconfig_t)
    kdump_rw_inherited_kdumpctl_tmp_pipes(ifconfig_t)
')

optional_policy(`
    libs_exec_ldconfig(ifconfig_t)
')

optional_policy(`
	modutils_domtrans_kmod(ifconfig_t)
')

optional_policy(`
    mysql_dontaudit_rw_db(ifconfig_t)
')

optional_policy(`
	ppp_use_fds(ifconfig_t)
')

optional_policy(`
	unconfined_dontaudit_rw_pipes(ifconfig_t)
')

optional_policy(`
	vmware_manage_log(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)
')

optional_policy(`
    iptables_domtrans(ifconfig_t)
')

optional_policy(`
    tlp_manage_pid_files(ifconfig_t)
')

optional_policy(`
	tunable_policy(`dhcpc_exec_iptables',`
		iptables_domtrans(dhcpc_t)
	')
')