policy_module(dbus) gen_require(` class dbus all_dbus_perms; ') ######################################## # # Declarations # ## ##

## Allow dbus-daemon system bus to access /dev/net/tun ## which is needed to pass tun/tap device file descriptors ## over D-Bus. This is needed by openvpn3-linux. ##

##
gen_tunable(dbus_pass_tuntap_fd, false) attribute dbusd_unconfined; attribute session_bus_type; attribute dbusd_system_bus_client; attribute dbusd_session_bus_client; type dbusd_etc_t; files_config_file(dbusd_etc_t) type dbusd_exec_t; corecmd_executable_file(dbusd_exec_t) type dbusd_unit_t; init_unit_file(dbusd_unit_t) type session_dbusd_home_t; userdom_user_home_content(session_dbusd_home_t) type session_dbusd_runtime_t; files_runtime_file(session_dbusd_runtime_t) userdom_user_runtime_content(session_dbusd_runtime_t) type session_dbusd_tmp_t; userdom_user_tmp_file(session_dbusd_tmp_t) type system_dbusd_t; init_system_domain(system_dbusd_t, dbusd_exec_t) init_named_socket_activation(system_dbusd_t, system_dbusd_runtime_t) type system_dbusd_runtime_t alias system_dbusd_var_run_t; files_runtime_file(system_dbusd_runtime_t) init_daemon_runtime_file(system_dbusd_runtime_t, dir, "dbus") init_mountpoint(system_dbusd_runtime_t) type system_dbusd_tmp_t; files_tmp_file(system_dbusd_tmp_t) type system_dbusd_var_lib_t; files_type(system_dbusd_var_lib_t) ifdef(`enable_mls',` init_ranged_system_domain(system_dbusd_t, dbusd_exec_t, s0 - mls_systemhigh) ') ######################################## # # Local policy # allow system_dbusd_t self:capability { dac_override setgid setpcap setuid sys_resource }; dontaudit system_dbusd_t self:capability sys_tty_config; allow system_dbusd_t self:process { getattr getsched signal_perms setpgid getcap setcap setrlimit }; allow system_dbusd_t self:fifo_file rw_fifo_file_perms; allow system_dbusd_t self:dbus { send_msg acquire_svc }; allow system_dbusd_t self:unix_stream_socket { accept connectto listen }; allow system_dbusd_t self:netlink_selinux_socket { create bind read }; allow system_dbusd_t dbusd_etc_t:dir { list_dir_perms watch }; read_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t) read_lnk_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t) manage_dirs_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t) manage_files_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t) files_tmp_filetrans(system_dbusd_t, system_dbusd_tmp_t, { dir file }) read_files_pattern(system_dbusd_t, system_dbusd_var_lib_t, system_dbusd_var_lib_t) manage_dirs_pattern(system_dbusd_t, system_dbusd_runtime_t, system_dbusd_runtime_t) manage_files_pattern(system_dbusd_t, system_dbusd_runtime_t, system_dbusd_runtime_t) manage_sock_files_pattern(system_dbusd_t, system_dbusd_runtime_t, system_dbusd_runtime_t) files_runtime_filetrans(system_dbusd_t, system_dbusd_runtime_t, { dir file }) can_exec(system_dbusd_t, dbusd_exec_t) kernel_read_crypto_sysctls(system_dbusd_t) kernel_read_system_state(system_dbusd_t) kernel_read_kernel_sysctls(system_dbusd_t) corecmd_list_bin(system_dbusd_t) corecmd_read_bin_pipes(system_dbusd_t) corecmd_read_bin_sockets(system_dbusd_t) corecmd_exec_shell(system_dbusd_t) dev_read_urand(system_dbusd_t) dev_read_sysfs(system_dbusd_t) domain_use_interactive_fds(system_dbusd_t) domain_read_all_domains_state(system_dbusd_t) files_list_home(system_dbusd_t) files_read_usr_files(system_dbusd_t) files_watch_usr_dirs(system_dbusd_t) fs_getattr_all_fs(system_dbusd_t) fs_list_inotifyfs(system_dbusd_t) fs_search_auto_mountpoints(system_dbusd_t) fs_search_cgroup_dirs(system_dbusd_t) fs_dontaudit_list_nfs(system_dbusd_t) mls_fd_use_all_levels(system_dbusd_t) mls_rangetrans_target(system_dbusd_t) mls_file_read_all_levels(system_dbusd_t) mls_socket_write_all_levels(system_dbusd_t) mls_socket_read_to_clearance(system_dbusd_t) mls_dbus_recv_all_levels(system_dbusd_t) selinux_get_fs_mount(system_dbusd_t) selinux_use_status_page(system_dbusd_t) selinux_validate_context(system_dbusd_t) selinux_compute_access_vector(system_dbusd_t) selinux_compute_create_context(system_dbusd_t) selinux_compute_relabel_context(system_dbusd_t) selinux_compute_user_contexts(system_dbusd_t) term_dontaudit_use_console(system_dbusd_t) auth_use_nsswitch(system_dbusd_t) auth_read_pam_console_data(system_dbusd_t) init_use_fds(system_dbusd_t) init_use_script_ptys(system_dbusd_t) init_all_labeled_script_domtrans(system_dbusd_t) init_start_system(system_dbusd_t) # needed by dbus-broker # for powerdevil /usr/lib/x86_64-linux-gnu/libexec/kauth/* libs_exec_lib_files(system_dbusd_t) logging_send_audit_msgs(system_dbusd_t) logging_send_syslog_msg(system_dbusd_t) miscfiles_read_localization(system_dbusd_t) miscfiles_read_generic_certs(system_dbusd_t) seutil_read_config(system_dbusd_t) seutil_read_default_contexts(system_dbusd_t) # for machinectl shell term_use_ptmx(system_dbusd_t) userdom_dontaudit_use_unpriv_user_fds(system_dbusd_t) userdom_dontaudit_search_user_home_dirs(system_dbusd_t) # read a file in ~/.local/share userdom_read_user_home_content_files(system_dbusd_t) ifdef(`init_systemd', ` # gdm3 causes system_dbusd_t to want this access dev_rw_dri(system_dbusd_t) dev_rw_input_dev(system_dbusd_t) # for /run/systemd/dynamic-uid/ init_list_runtime(system_dbusd_t) init_read_runtime_symlinks(system_dbusd_t) # Recent versions of dbus are started as Type=notify init_write_runtime_socket(system_dbusd_t) ') tunable_policy(`dbus_pass_tuntap_fd',` corenet_rw_tun_tap_dev(system_dbusd_t) ') optional_policy(` # for /run/systemd/users/* systemd_read_logind_runtime_files(system_dbusd_t) systemd_write_inherited_logind_inhibit_pipes(system_dbusd_t) systemd_write_inherited_logind_sessions_pipes(system_dbusd_t) # for passing around terminal file handles for machinectl shell systemd_use_inherited_machined_ptys(system_dbusd_t) # allow populating of /var/lib/dbus by systemd-tmpfilesd systemd_tmpfilesd_managed(system_dbusd_var_lib_t) ') optional_policy(` bluetooth_stream_connect(system_dbusd_t) ') optional_policy(` policykit_read_lib(system_dbusd_t) ') optional_policy(` seutil_sigchld_newrole(system_dbusd_t) ') optional_policy(` tpm2_rw_abrmd_pipes(system_dbusd_t) ') optional_policy(` unconfined_dbus_send(system_dbusd_t) ') optional_policy(` xserver_read_xdm_lib_files(system_dbusd_t) xserver_use_xdm_fds(system_dbusd_t) ') ######################################## # # Common session bus local policy # dontaudit session_bus_type self:capability sys_resource; allow session_bus_type self:process { getattr sigkill signal }; dontaudit session_bus_type self:process { ptrace setrlimit }; allow session_bus_type self:file rw_inherited_file_perms; allow session_bus_type self:fifo_file rw_fifo_file_perms; allow session_bus_type self:dbus { send_msg acquire_svc }; allow session_bus_type self:unix_stream_socket { accept listen }; allow session_bus_type self:tcp_socket { accept listen }; allow session_bus_type self:netlink_selinux_socket create_socket_perms; allow session_bus_type dbusd_etc_t:dir list_dir_perms; read_files_pattern(session_bus_type, dbusd_etc_t, dbusd_etc_t) read_lnk_files_pattern(session_bus_type, dbusd_etc_t, dbusd_etc_t) allow session_bus_type dbusd_etc_t:dir watch; manage_dirs_pattern(session_bus_type, session_dbusd_home_t, session_dbusd_home_t) manage_files_pattern(session_bus_type, session_dbusd_home_t, session_dbusd_home_t) userdom_user_home_dir_filetrans(session_bus_type, session_dbusd_home_t, dir, ".dbus") manage_dirs_pattern(session_bus_type, session_dbusd_tmp_t, session_dbusd_tmp_t) manage_files_pattern(session_bus_type, session_dbusd_tmp_t, session_dbusd_tmp_t) files_tmp_filetrans(session_bus_type, session_dbusd_tmp_t, { dir file }) manage_dirs_pattern(session_bus_type, session_dbusd_runtime_t, session_dbusd_runtime_t) manage_files_pattern(session_bus_type, session_dbusd_runtime_t, session_dbusd_runtime_t) manage_sock_files_pattern(session_bus_type, session_dbusd_runtime_t, session_dbusd_runtime_t) userdom_user_runtime_filetrans(session_bus_type, session_dbusd_runtime_t, { dir file sock_file }) kernel_read_crypto_sysctls(session_bus_type) kernel_read_system_state(session_bus_type) kernel_read_kernel_sysctls(session_bus_type) corecmd_list_bin(session_bus_type) corecmd_read_bin_files(session_bus_type) corecmd_read_bin_pipes(session_bus_type) corecmd_read_bin_sockets(session_bus_type) corenet_all_recvfrom_netlabel(session_bus_type) corenet_tcp_sendrecv_generic_if(session_bus_type) corenet_tcp_sendrecv_generic_node(session_bus_type) corenet_tcp_bind_generic_node(session_bus_type) corenet_sendrecv_all_server_packets(session_bus_type) corenet_tcp_bind_reserved_port(session_bus_type) dev_read_urand(session_bus_type) domain_read_all_domains_state(session_bus_type) domain_use_interactive_fds(session_bus_type) files_list_home(session_bus_type) files_read_usr_files(session_bus_type) files_watch_usr_dirs(session_bus_type) files_dontaudit_search_var(session_bus_type) fs_getattr_cgroup(session_bus_type) fs_getattr_romfs(session_bus_type) fs_getattr_xattr_fs(session_bus_type) fs_list_inotifyfs(session_bus_type) fs_dontaudit_list_nfs(session_bus_type) kernel_getattr_proc(session_bus_type) selinux_get_fs_mount(session_bus_type) selinux_validate_context(session_bus_type) selinux_compute_access_vector(session_bus_type) selinux_compute_create_context(session_bus_type) selinux_compute_relabel_context(session_bus_type) selinux_compute_user_contexts(session_bus_type) auth_read_pam_console_data(session_bus_type) logging_send_audit_msgs(session_bus_type) logging_send_syslog_msg(session_bus_type) miscfiles_read_localization(session_bus_type) seutil_read_config(session_bus_type) seutil_read_default_contexts(session_bus_type) term_use_all_terms(session_bus_type) optional_policy(` xserver_rw_xsession_log(session_bus_type) xserver_use_xdm_fds(session_bus_type) xserver_rw_xdm_pipes(session_bus_type) ') ######################################## # # Unconfined access to this module # allow dbusd_unconfined { dbusd_session_bus_client dbusd_system_bus_client }:dbus send_msg; allow dbusd_unconfined { system_dbusd_t session_bus_type }:dbus all_dbus_perms;