policy_module(sysnetwork, 1.28.0) ######################################## # # Declarations # ## ##

## Determine whether DHCP client ## can manage samba ##

##
gen_tunable(dhcpc_manage_samba, false) attribute_role dhcpc_roles; roleattribute system_r dhcpc_roles; # this is shared between dhcpc and dhcpd: type dhcp_etc_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 dhcpc_roles types dhcpc_t; type dhcpc_runtime_t alias dhcpc_var_run_t; files_runtime_file(dhcpc_runtime_t) type dhcpc_state_t; files_type(dhcpc_state_t) type dhcpc_tmp_t; files_tmp_file(dhcpc_tmp_t) type ifconfig_t; type ifconfig_exec_t; init_system_domain(ifconfig_t, ifconfig_exec_t) role system_r types ifconfig_t; type ifconfig_runtime_t; files_runtime_file(ifconfig_runtime_t) type net_conf_t; files_type(net_conf_t) ifdef(`distro_debian',` init_daemon_runtime_file(net_conf_t, dir, "network") ') ######################################## # # DHCP client local policy # allow dhcpc_t self:capability { dac_override fsetid net_admin net_bind_service net_raw setpcap sys_nice sys_resource sys_tty_config }; dontaudit dhcpc_t self:capability { sys_ptrace 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 { getsched getcap setcap setfscreate ptrace signal_perms }; 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:netlink_generic_socket create_socket_perms; allow dhcpc_t self:netlink_route_socket create_netlink_socket_perms; allow dhcpc_t self:rawip_socket create_socket_perms; allow dhcpc_t self:unix_dgram_socket { create_socket_perms 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; 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; # create pid file manage_files_pattern(dhcpc_t, dhcpc_runtime_t, dhcpc_runtime_t) manage_sock_files_pattern(dhcpc_t, dhcpc_runtime_t, dhcpc_runtime_t) create_dirs_pattern(dhcpc_t, dhcpc_runtime_t, dhcpc_runtime_t) files_runtime_filetrans(dhcpc_t, dhcpc_runtime_t, { file dir }) # 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. 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_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_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_all_server_packets(dhcpc_t) corenet_sendrecv_icmp_packets(dhcpc_t) dev_read_sysfs(dhcpc_t) # for SSP: dev_read_urand(dhcpc_t) domain_use_interactive_fds(dhcpc_t) domain_dontaudit_read_all_domains_state(dhcpc_t) files_read_etc_files(dhcpc_t) files_read_etc_runtime_files(dhcpc_t) files_read_usr_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_manage_var_files(dhcpc_t) fs_getattr_all_fs(dhcpc_t) fs_search_auto_mountpoints(dhcpc_t) fs_search_cgroup_dirs(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) init_rw_utmp(dhcpc_t) logging_send_syslog_msg(dhcpc_t) miscfiles_read_localization(dhcpc_t) # dhclient reads /etc/ssl miscfiles_read_generic_certs(dhcpc_t) sysnet_run_ifconfig(dhcpc_t, dhcpc_roles) 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) ') ') ifdef(`init_systemd',` init_rw_stream_sockets(dhcpc_t) init_read_state(dhcpc_t) init_stream_connect(dhcpc_t) init_get_all_units_status(dhcpc_t) init_search_units(dhcpc_t) ') optional_policy(` avahi_domtrans(dhcpc_t) ') optional_policy(` consoletype_run(dhcpc_t, dhcpc_roles) ') 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) ') optional_policy(` modutils_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_read_runtime_files(dhcpc_t) networkmanager_manage_lib_files(dhcpc_t) networkmanager_stream_connect(dhcpc_t) ') optional_policy(` nis_read_ypbind_runtime_files(dhcpc_t) ') optional_policy(` nscd_initrc_domtrans(dhcpc_t) nscd_domtrans(dhcpc_t) nscd_read_runtime_files(dhcpc_t) ') optional_policy(` ntp_initrc_domtrans(dhcpc_t) ntp_read_drift_files(dhcpc_t) ntp_read_conf_files(dhcpc_t) ') optional_policy(` tunable_policy(`dhcpc_manage_samba',` samba_manage_config(dhcpc_t) samba_manage_var_files(dhcpc_t) init_exec_script_files(dhcpc_t) init_get_system_status(dhcpc_t) samba_stop(dhcpc_t) samba_start(dhcpc_t) samba_reload(dhcpc_t) samba_status(dhcpc_t) ') ') optional_policy(` seutil_sigchld_newrole(dhcpc_t) seutil_dontaudit_search_config(dhcpc_t) ') optional_policy(` userdom_use_all_users_fds(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_admin net_raw sys_admin sys_tty_config }; dontaudit ifconfig_t self:capability sys_module; allow ifconfig_t self:process { transition signal_perms getsched setsched getsession getpgid setpgid getcap setcap share getattr noatsecure siginh rlimitinh dyntransition setkeycreate setsockcreate getrlimit }; 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; # generic netlink socket for iw # socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_GENERIC) = 3 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; allow ifconfig_t self:tcp_socket { create ioctl }; # Allow "ip netns" to remount /var/run/netns and to mount network namespace files on /var/run/netns/$NSNAME allow ifconfig_t ifconfig_runtime_t:dir mounton; allow ifconfig_t ifconfig_runtime_t:file mounton; manage_files_pattern(ifconfig_t, ifconfig_runtime_t, ifconfig_runtime_t) create_dirs_pattern(ifconfig_t, ifconfig_runtime_t, ifconfig_runtime_t) files_runtime_filetrans(ifconfig_t, ifconfig_runtime_t, dir) 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) corenet_rw_tun_tap_dev(ifconfig_t) dev_read_sysfs(ifconfig_t) # for IPSEC setup: dev_read_urand(ifconfig_t) domain_use_interactive_fds(ifconfig_t) files_read_etc_files(ifconfig_t) files_read_etc_runtime_files(ifconfig_t) fs_getattr_xattr_fs(ifconfig_t) fs_read_nsfs_files(ifconfig_t) fs_search_auto_mountpoints(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) files_dontaudit_read_root_files(ifconfig_t) init_use_fds(ifconfig_t) init_use_script_ptys(ifconfig_t) logging_send_syslog_msg(ifconfig_t) miscfiles_read_localization(ifconfig_t) seutil_use_runinit_fds(ifconfig_t) sysnet_dontaudit_rw_dhcpc_udp_sockets(ifconfig_t) # For "ip netns identify $$" userdom_read_all_users_state(ifconfig_t) userdom_use_user_terminals(ifconfig_t) userdom_use_all_users_fds(ifconfig_t) ifdef(`distro_debian',` term_dontaudit_use_unallocated_ttys(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(` devicekit_read_runtime_files(ifconfig_t) devicekit_append_inherited_log_files(ifconfig_t) ') optional_policy(` ipsec_write_runtime_files(ifconfig_t) ipsec_setcontext_default_spd(ifconfig_t) ') optional_policy(` modutils_domtrans(ifconfig_t) ') optional_policy(` nis_use_ypbind(ifconfig_t) ') optional_policy(` ppp_use_fds(ifconfig_t) ') optional_policy(` unconfined_dontaudit_rw_pipes(ifconfig_t) ') optional_policy(` vmware_append_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) ')