policy/modules/services/dbus.te

   1 policy_module(dbus, 1.14.3)
   2
   3 gen_require(`
   4         class dbus all_dbus_perms;
   5 ')
   6
   7 ##############################
   8 #
   9 # Delcarations
  10 #
  11
  12 attribute dbusd_unconfined;
  13 attribute system_bus_type;
  14 attribute session_bus_type;
  15
  16 type dbusd_etc_t;
  17 files_config_file(dbusd_etc_t)
  18
  19 type dbusd_exec_t;
  20 corecmd_executable_file(dbusd_exec_t)
  21 typealias dbusd_exec_t alias system_dbusd_exec_t;
  22
  23 type session_dbusd_tmp_t;
  24 typealias session_dbusd_tmp_t alias { user_dbusd_tmp_t staff_dbusd_tmp_t sysadm_dbusd_tmp_t };
  25 typealias session_dbusd_tmp_t alias { auditadm_dbusd_tmp_t secadm_dbusd_tmp_t };
  26 files_tmp_file(session_dbusd_tmp_t)
  27 ubac_constrained(session_dbusd_tmp_t)
  28
  29 type system_dbusd_t;
  30 init_system_domain(system_dbusd_t, dbusd_exec_t)
  31
  32 type system_dbusd_tmp_t;
  33 files_tmp_file(system_dbusd_tmp_t)
  34
  35 type system_dbusd_var_lib_t;
  36 files_type(system_dbusd_var_lib_t)
  37
  38 type system_dbusd_var_run_t;
  39 files_pid_file(system_dbusd_var_run_t)
  40 init_sock_file(system_dbusd_var_run_t)
  41
  42 ifdef(`enable_mcs',`
  43         init_ranged_system_domain(system_dbusd_t, dbusd_exec_t, s0 - mcs_systemhigh)
  44 ')
  45
  46 ifdef(`enable_mls',`
  47         init_ranged_system_domain(system_dbusd_t, dbusd_exec_t, s0 - mls_systemhigh)
  48 ')
  49
  50 ##############################
  51 #
  52 # System bus local policy
  53 #
  54
  55 # dac_override: /var/run/dbus is owned by messagebus on Debian
  56 # cjp: dac_override should probably go in a distro_debian
  57 allow system_dbusd_t self:capability { sys_resource dac_override setgid setpcap setuid };
  58 dontaudit system_dbusd_t self:capability sys_tty_config;
  59 allow system_dbusd_t self:process { getattr getsched signal_perms setpgid getcap setcap setrlimit };
  60 allow system_dbusd_t self:fifo_file rw_fifo_file_perms;
  61 allow system_dbusd_t self:dbus { send_msg acquire_svc };
  62 allow system_dbusd_t self:unix_stream_socket { connectto create_stream_socket_perms connectto };
  63 allow system_dbusd_t self:unix_dgram_socket create_socket_perms;
  64 # Receive notifications of policy reloads and enforcing status changes.
  65 allow system_dbusd_t self:netlink_selinux_socket { create bind read };
  66
  67 can_exec(system_dbusd_t, dbusd_exec_t)
  68
  69 allow system_dbusd_t dbusd_etc_t:dir list_dir_perms;
  70 read_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t)
  71 read_lnk_files_pattern(system_dbusd_t, dbusd_etc_t, dbusd_etc_t)
  72
  73 manage_dirs_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t)
  74 manage_files_pattern(system_dbusd_t, system_dbusd_tmp_t, system_dbusd_tmp_t)
  75 files_tmp_filetrans(system_dbusd_t, system_dbusd_tmp_t, { file dir })
  76
  77 read_files_pattern(system_dbusd_t, system_dbusd_var_lib_t, system_dbusd_var_lib_t)
  78
  79 manage_dirs_pattern(system_dbusd_t, system_dbusd_var_run_t, system_dbusd_var_run_t)
  80 manage_files_pattern(system_dbusd_t, system_dbusd_var_run_t, system_dbusd_var_run_t)
  81 manage_sock_files_pattern(system_dbusd_t, system_dbusd_var_run_t, system_dbusd_var_run_t)
  82 files_pid_filetrans(system_dbusd_t, system_dbusd_var_run_t, { file dir })
  83
  84 kernel_read_system_state(system_dbusd_t)
  85 kernel_read_kernel_sysctls(system_dbusd_t)
  86
  87 dev_read_urand(system_dbusd_t)
  88 dev_read_sysfs(system_dbusd_t)
  89
  90 fs_getattr_all_fs(system_dbusd_t)
  91 fs_list_inotifyfs(system_dbusd_t)
  92 fs_search_auto_mountpoints(system_dbusd_t)
  93 fs_dontaudit_list_nfs(system_dbusd_t)
  94
  95 mls_fd_use_all_levels(system_dbusd_t)
  96 mls_rangetrans_target(system_dbusd_t)
  97 mls_file_read_all_levels(system_dbusd_t)
  98 mls_socket_write_all_levels(system_dbusd_t)
  99 mls_socket_read_to_clearance(system_dbusd_t)
 100 mls_dbus_recv_all_levels(system_dbusd_t)
 101
 102 selinux_get_fs_mount(system_dbusd_t)
 103 selinux_validate_context(system_dbusd_t)
 104 selinux_compute_access_vector(system_dbusd_t)
 105 selinux_compute_create_context(system_dbusd_t)
 106 selinux_compute_relabel_context(system_dbusd_t)
 107 selinux_compute_user_contexts(system_dbusd_t)
 108
 109 term_dontaudit_use_console(system_dbusd_t)
 110
 111 auth_use_nsswitch(system_dbusd_t)
 112 auth_read_pam_console_data(system_dbusd_t)
 113
 114 corecmd_list_bin(system_dbusd_t)
 115 corecmd_read_bin_pipes(system_dbusd_t)
 116 corecmd_read_bin_sockets(system_dbusd_t)
 117 # needed for system-tools-backends
 118 corecmd_exec_shell(system_dbusd_t)
 119
 120 domain_use_interactive_fds(system_dbusd_t)
 121 domain_read_all_domains_state(system_dbusd_t)
 122
 123 files_read_etc_files(system_dbusd_t)
 124 files_list_home(system_dbusd_t)
 125 files_read_usr_files(system_dbusd_t)
 126
 127 init_use_fds(system_dbusd_t)
 128 init_use_script_ptys(system_dbusd_t)
 129 init_bin_domtrans_spec(system_dbusd_t)
 130 init_domtrans_script(system_dbusd_t)
 131 init_rw_stream_sockets(system_dbusd_t)
 132
 133 logging_send_audit_msgs(system_dbusd_t)
 134 logging_send_syslog_msg(system_dbusd_t)
 135
 136 miscfiles_read_localization(system_dbusd_t)
 137 miscfiles_read_generic_certs(system_dbusd_t)
 138
 139 seutil_read_config(system_dbusd_t)
 140 seutil_read_default_contexts(system_dbusd_t)
 141 seutil_sigchld_newrole(system_dbusd_t)
 142
 143 userdom_dontaudit_use_unpriv_user_fds(system_dbusd_t)
 144 userdom_dontaudit_search_user_home_dirs(system_dbusd_t)
 145
 146 userdom_home_reader(system_dbusd_t)
 147
 148 optional_policy(`
 149         bind_domtrans(system_dbusd_t)
 150 ')
 151
 152 optional_policy(`
 153         gnome_exec_gconf(system_dbusd_t)
 154         gnome_read_inherited_home_icc_data_files(system_dbusd_t)
 155 ')
 156
 157 optional_policy(`
 158         cpufreqselector_dbus_chat(system_dbusd_t)
 159 ')
 160
 161 optional_policy(`
 162         networkmanager_initrc_domtrans(system_dbusd_t)
 163         networkmanager_systemctl(system_dbusd_t)
 164 ')
 165
 166 optional_policy(`
 167         policykit_dbus_chat(system_dbusd_t)
 168         policykit_domtrans_auth(system_dbusd_t)
 169         policykit_search_lib(system_dbusd_t)
 170 ')
 171
 172 optional_policy(`
 173         sysnet_domtrans_dhcpc(system_dbusd_t)
 174 ')
 175
 176 optional_policy(`
 177         systemd_use_fds_logind(system_dbusd_t)
 178         systemd_write_inherited_logind_sessions_pipes(system_dbusd_t)
 179 ')
 180
 181 optional_policy(`
 182         udev_read_db(system_dbusd_t)
 183 ')
 184
 185 optional_policy(`
 186         # /var/lib/gdm/.local/share/icc/edid-0a027915105823af34f99b1704e80336.icc
 187         xserver_read_inherited_xdm_lib_files(system_dbusd_t)
 188 ')
 189
 190 ########################################
 191 #
 192 # system_bus_type rules
 193 #
 194 role system_r types system_bus_type;
 195
 196 fs_search_all(system_bus_type)
 197
 198 dbus_system_bus_client(system_bus_type)
 199 dbus_connect_system_bus(system_bus_type)
 200
 201 init_stream_connect(system_bus_type)
 202 init_dgram_send(system_bus_type)
 203 init_use_fds(system_bus_type)
 204 init_rw_stream_sockets(system_bus_type)
 205
 206 ps_process_pattern(system_dbusd_t, system_bus_type)
 207
 208 userdom_dontaudit_search_admin_dir(system_bus_type)
 209 userdom_read_all_users_state(system_bus_type)
 210
 211 optional_policy(`
 212         abrt_stream_connect(system_bus_type)
 213 ')
 214
 215 optional_policy(`
 216         rpm_script_dbus_chat(system_bus_type)
 217 ')
 218
 219 optional_policy(`
 220         unconfined_dbus_send(system_bus_type)
 221 ')
 222
 223 ifdef(`hide_broken_symptoms',`
 224         dontaudit system_bus_type system_dbusd_t:netlink_selinux_socket { read write };
 225 ')
 226
 227 ########################################
 228 #
 229 # session_bus_type rules
 230 #
 231 dontaudit session_bus_type self:capability sys_resource;
 232 allow session_bus_type self:process { getattr sigkill signal };
 233 dontaudit session_bus_type self:process { ptrace setrlimit };
 234 allow session_bus_type self:file { getattr read write };
 235 allow session_bus_type self:fifo_file rw_fifo_file_perms;
 236 allow session_bus_type self:dbus { send_msg acquire_svc };
 237 allow session_bus_type self:unix_stream_socket create_stream_socket_perms;
 238 allow session_bus_type self:unix_dgram_socket create_socket_perms;
 239 allow session_bus_type self:tcp_socket create_stream_socket_perms;
 240 allow session_bus_type self:netlink_selinux_socket create_socket_perms;
 241
 242 allow session_bus_type dbusd_etc_t:dir list_dir_perms;
 243 read_files_pattern(session_bus_type, dbusd_etc_t, dbusd_etc_t)
 244 read_lnk_files_pattern(session_bus_type, dbusd_etc_t, dbusd_etc_t)
 245
 246 manage_dirs_pattern(session_bus_type, session_dbusd_tmp_t, session_dbusd_tmp_t)
 247 manage_files_pattern(session_bus_type, session_dbusd_tmp_t, session_dbusd_tmp_t)
 248 files_tmp_filetrans(session_bus_type, session_dbusd_tmp_t, { file dir })
 249
 250 kernel_read_system_state(session_bus_type)
 251 kernel_read_kernel_sysctls(session_bus_type)
 252
 253 corecmd_list_bin(session_bus_type)
 254 corecmd_read_bin_symlinks(session_bus_type)
 255 corecmd_read_bin_files(session_bus_type)
 256 corecmd_read_bin_pipes(session_bus_type)
 257 corecmd_read_bin_sockets(session_bus_type)
 258
 259 corenet_all_recvfrom_unlabeled(session_bus_type)
 260 corenet_all_recvfrom_netlabel(session_bus_type)
 261 corenet_tcp_sendrecv_generic_if(session_bus_type)
 262 corenet_tcp_sendrecv_generic_node(session_bus_type)
 263 corenet_tcp_sendrecv_all_ports(session_bus_type)
 264 corenet_tcp_bind_generic_node(session_bus_type)
 265 corenet_tcp_bind_reserved_port(session_bus_type)
 266
 267 dev_read_urand(session_bus_type)
 268
 269 domain_use_interactive_fds(session_bus_type)
 270 domain_read_all_domains_state(session_bus_type)
 271
 272 files_read_etc_files(session_bus_type)
 273 files_list_home(session_bus_type)
 274 files_read_usr_files(session_bus_type)
 275 files_dontaudit_search_var(session_bus_type)
 276
 277 fs_getattr_romfs(session_bus_type)
 278 fs_getattr_xattr_fs(session_bus_type)
 279 fs_list_inotifyfs(session_bus_type)
 280 fs_dontaudit_list_nfs(session_bus_type)
 281
 282 selinux_get_fs_mount(session_bus_type)
 283 selinux_validate_context(session_bus_type)
 284 selinux_compute_access_vector(session_bus_type)
 285 selinux_compute_create_context(session_bus_type)
 286 selinux_compute_relabel_context(session_bus_type)
 287 selinux_compute_user_contexts(session_bus_type)
 288
 289 auth_read_pam_console_data(session_bus_type)
 290
 291 logging_send_audit_msgs(session_bus_type)
 292 logging_send_syslog_msg(session_bus_type)
 293
 294 miscfiles_read_localization(session_bus_type)
 295
 296 seutil_read_config(session_bus_type)
 297 seutil_read_default_contexts(session_bus_type)
 298
 299 term_use_all_inherited_terms(session_bus_type)
 300
 301 userdom_dontaudit_search_admin_dir(session_bus_type)
 302 userdom_manage_user_home_content_dirs(session_bus_type)
 303 userdom_manage_user_home_content_files(session_bus_type)
 304 userdom_user_home_dir_filetrans_user_home_content(session_bus_type, { dir file })
 305
 306 optional_policy(`
 307         gnome_read_gconf_home_files(session_bus_type)
 308 ')
 309
 310 optional_policy(`
 311         hal_dbus_chat(session_bus_type)
 312 ')
 313
 314 optional_policy(`
 315         xserver_search_xdm_lib(session_bus_type)
 316         xserver_use_xdm_fds(session_bus_type)
 317         xserver_rw_xdm_pipes(session_bus_type)
 318         xserver_use_xdm_fds(session_bus_type)
 319         xserver_rw_xdm_pipes(session_bus_type)
 320         xserver_append_xdm_home_files(session_bus_type)
 321 ')
 322
 323 ########################################
 324 #
 325 # Unconfined access to this module
 326 #
 327 allow dbusd_unconfined session_bus_type:dbus all_dbus_perms;
 328 allow dbusd_unconfined dbusd_unconfined:dbus all_dbus_perms;
 329 allow session_bus_type dbusd_unconfined:dbus send_msg;