policy_module(netutils, 1.21.1)

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

## <desc>
## <p>
## Control users use of ping and traceroute
## </p>
## </desc>
gen_tunable(user_ping, false)

type netutils_t;
type netutils_exec_t;
init_system_domain(netutils_t, netutils_exec_t)

type netutils_tmp_t;
files_tmp_file(netutils_tmp_t)

type ping_t;
type ping_exec_t;
init_system_domain(ping_t, ping_exec_t)

type traceroute_t;
type traceroute_exec_t;
init_system_domain(traceroute_t, traceroute_exec_t)

########################################
#
# Netutils local policy
#

# Perform network administration operations and have raw access to the network.
allow netutils_t self:capability { dac_read_search net_admin net_raw setgid setpcap setuid sys_chroot };
dontaudit netutils_t self:capability { dac_override sys_tty_config };
allow netutils_t self:process { getcap setcap signal_perms };
allow netutils_t self:netlink_route_socket create_netlink_socket_perms;
allow netutils_t self:netlink_socket create_socket_perms;
# For tcpdump.
allow netutils_t self:netlink_netfilter_socket create_socket_perms;
allow netutils_t self:packet_socket { create_socket_perms map };
allow netutils_t self:udp_socket create_socket_perms;
allow netutils_t self:tcp_socket create_stream_socket_perms;
allow netutils_t self:socket create_socket_perms;

manage_dirs_pattern(netutils_t, netutils_tmp_t, netutils_tmp_t)
manage_files_pattern(netutils_t, netutils_tmp_t, netutils_tmp_t)
files_tmp_filetrans(netutils_t, netutils_tmp_t, { file dir })

kernel_read_network_state(netutils_t)
kernel_read_all_sysctls(netutils_t)

corenet_all_recvfrom_netlabel(netutils_t)
corenet_tcp_sendrecv_generic_if(netutils_t)
corenet_raw_sendrecv_generic_if(netutils_t)
corenet_udp_sendrecv_generic_if(netutils_t)
corenet_tcp_sendrecv_generic_node(netutils_t)
corenet_raw_sendrecv_generic_node(netutils_t)
corenet_udp_sendrecv_generic_node(netutils_t)
corenet_tcp_connect_all_ports(netutils_t)
corenet_sendrecv_all_client_packets(netutils_t)
corenet_udp_bind_generic_node(netutils_t)

dev_read_sysfs(netutils_t)

fs_getattr_xattr_fs(netutils_t)

domain_use_interactive_fds(netutils_t)

files_read_etc_files(netutils_t)
# for nscd
files_dontaudit_search_var(netutils_t)

init_use_fds(netutils_t)
init_use_script_ptys(netutils_t)

auth_use_nsswitch(netutils_t)

logging_send_syslog_msg(netutils_t)

miscfiles_read_localization(netutils_t)

userdom_use_inherited_user_terminals(netutils_t)

optional_policy(`
	nis_use_ypbind(netutils_t)
')

optional_policy(`
	vmware_append_log(netutils_t)
')

optional_policy(`
	xen_append_log(netutils_t)
')

########################################
#
# Ping local policy
#

allow ping_t self:capability { net_raw setuid };
# When ping is installed with capabilities instead of setuid
allow ping_t self:process { getcap setcap };
dontaudit ping_t self:capability sys_tty_config;
allow ping_t self:tcp_socket create_socket_perms;
allow ping_t self:rawip_socket { create ioctl read write bind getopt setopt getattr };
allow ping_t self:packet_socket { create ioctl read write bind getopt setopt };
allow ping_t self:netlink_route_socket create_netlink_socket_perms;
allow ping_t self:icmp_socket create_socket_perms;

corenet_all_recvfrom_netlabel(ping_t)
corenet_sendrecv_icmp_packets(ping_t)
corenet_tcp_sendrecv_generic_if(ping_t)
corenet_raw_sendrecv_generic_if(ping_t)
corenet_raw_sendrecv_generic_node(ping_t)
corenet_tcp_sendrecv_generic_node(ping_t)
corenet_raw_bind_generic_node(ping_t)

dev_read_urand(ping_t)

domain_use_interactive_fds(ping_t)

files_read_etc_files(ping_t)

kernel_read_system_state(ping_t)

auth_use_nsswitch(ping_t)

logging_send_syslog_msg(ping_t)

miscfiles_read_localization(ping_t)

userdom_use_inherited_user_terminals(ping_t)

ifdef(`hide_broken_symptoms',`
	init_dontaudit_use_fds(ping_t)

	optional_policy(`
		nagios_dontaudit_rw_log(ping_t)
		nagios_dontaudit_rw_pipes(ping_t)
	')
')

optional_policy(`
	munin_append_log(ping_t)
')

########################################
#
# Traceroute local policy
#

allow traceroute_t self:capability { net_admin net_raw setgid setuid };
allow traceroute_t self:fifo_file rw_inherited_fifo_file_perms;
allow traceroute_t self:process signal;
allow traceroute_t self:rawip_socket create_socket_perms;
allow traceroute_t self:packet_socket { map create_socket_perms };
allow traceroute_t self:udp_socket create_socket_perms;

can_exec(traceroute_t, traceroute_exec_t)

kernel_read_system_state(traceroute_t)
kernel_read_network_state(traceroute_t)
kernel_search_fs_sysctls(traceroute_t)

corecmd_search_bin(traceroute_t)

corenet_all_recvfrom_netlabel(traceroute_t)
corenet_tcp_sendrecv_generic_if(traceroute_t)
corenet_udp_sendrecv_generic_if(traceroute_t)
corenet_raw_sendrecv_generic_if(traceroute_t)
corenet_tcp_sendrecv_generic_node(traceroute_t)
corenet_udp_sendrecv_generic_node(traceroute_t)
corenet_raw_sendrecv_generic_node(traceroute_t)
corenet_udp_bind_generic_node(traceroute_t)
corenet_tcp_bind_generic_node(traceroute_t)
# traceroute needs this but not tracepath
corenet_raw_bind_generic_node(traceroute_t)
corenet_udp_bind_traceroute_port(traceroute_t)
corenet_tcp_connect_all_ports(traceroute_t)
corenet_sendrecv_all_client_packets(traceroute_t)
corenet_sendrecv_traceroute_server_packets(traceroute_t)

dev_read_rand(traceroute_t)
dev_read_urand(traceroute_t)
dev_read_sysfs(traceroute_t)

domain_use_interactive_fds(traceroute_t)

files_read_etc_files(traceroute_t)
files_read_usr_files(traceroute_t)

init_use_fds(traceroute_t)

auth_use_nsswitch(traceroute_t)

logging_send_syslog_msg(traceroute_t)

miscfiles_read_generic_certs(traceroute_t)
miscfiles_read_localization(traceroute_t)

userdom_use_inherited_user_terminals(traceroute_t)

# nmap searches .
userdom_dontaudit_search_user_home_dirs(traceroute_t)
userdom_dontaudit_search_user_home_content(traceroute_t)
