policy/modules/system/ipsec.te

   1
   2 policy_module(ipsec, 1.11.0)
   3
   4 ########################################
   5 #
   6 # Declarations
   7 #
   8
   9 ## <desc>
  10 ## <p>
  11 ## Allow racoon to read shadow
  12 ## </p>
  13 ## </desc>
  14 gen_tunable(racoon_read_shadow, false)
  15
  16 type ipsec_t;
  17 type ipsec_exec_t;
  18 init_daemon_domain(ipsec_t, ipsec_exec_t)
  19 role system_r types ipsec_t;
  20
  21 # type for ipsec configuration file(s) - not for keys
  22 type ipsec_conf_file_t;
  23 files_type(ipsec_conf_file_t)
  24
  25 type ipsec_initrc_exec_t;
  26 init_script_file(ipsec_initrc_exec_t)
  27
  28 # type for file(s) containing ipsec keys - RSA or preshared
  29 type ipsec_key_file_t;
  30 files_type(ipsec_key_file_t)
  31
  32 type ipsec_log_t;
  33 logging_log_file(ipsec_log_t)
  34
  35 # Default type for IPSEC SPD entries
  36 type ipsec_spd_t;
  37
  38 type ipsec_tmp_t;
  39 files_tmp_file(ipsec_tmp_t)
  40
  41 # type for runtime files, including pluto.ctl
  42 type ipsec_var_run_t;
  43 files_pid_file(ipsec_var_run_t)
  44
  45 type ipsec_mgmt_t;
  46 type ipsec_mgmt_exec_t;
  47 init_system_domain(ipsec_mgmt_t, ipsec_mgmt_exec_t)
  48 corecmd_shell_entry_type(ipsec_mgmt_t)
  49 role system_r types ipsec_mgmt_t;
  50
  51 type ipsec_mgmt_lock_t;
  52 files_lock_file(ipsec_mgmt_lock_t)
  53
  54 type ipsec_mgmt_var_run_t;
  55 files_pid_file(ipsec_mgmt_var_run_t)
  56
  57 type racoon_t;
  58 type racoon_exec_t;
  59 init_daemon_domain(racoon_t, racoon_exec_t)
  60 role system_r types racoon_t;
  61
  62 type racoon_tmp_t;
  63 files_tmp_file(racoon_tmp_t)
  64
  65 type setkey_t;
  66 type setkey_exec_t;
  67 init_system_domain(setkey_t, setkey_exec_t)
  68 role system_r types setkey_t;
  69
  70 ########################################
  71 #
  72 # ipsec Local policy
  73 #
  74
  75 allow ipsec_t self:capability { net_admin dac_override dac_read_search setpcap sys_nice };
  76 dontaudit ipsec_t self:capability sys_tty_config;
  77 allow ipsec_t self:process { getcap setcap getsched signal setsched };
  78 allow ipsec_t self:tcp_socket create_stream_socket_perms;
  79 allow ipsec_t self:udp_socket create_socket_perms;
  80 allow ipsec_t self:key_socket create_socket_perms;
  81 allow ipsec_t self:fifo_file read_fifo_file_perms;
  82 allow ipsec_t self:netlink_xfrm_socket { create_netlink_socket_perms nlmsg_write };
  83
  84 allow ipsec_t ipsec_initrc_exec_t:file read_file_perms;
  85
  86 allow ipsec_t ipsec_conf_file_t:dir list_dir_perms;
  87 read_files_pattern(ipsec_t, ipsec_conf_file_t, ipsec_conf_file_t)
  88 read_lnk_files_pattern(ipsec_t, ipsec_conf_file_t, ipsec_conf_file_t)
  89
  90 allow ipsec_t ipsec_key_file_t:dir list_dir_perms;
  91 manage_files_pattern(ipsec_t, ipsec_key_file_t, ipsec_key_file_t)
  92 read_lnk_files_pattern(ipsec_t, ipsec_key_file_t, ipsec_key_file_t)
  93
  94 manage_dirs_pattern(ipsec_t, ipsec_tmp_t, ipsec_tmp_t)
  95 manage_files_pattern(ipsec_t, ipsec_tmp_t, ipsec_tmp_t)
  96 files_tmp_filetrans(ipsec_t, ipsec_tmp_t, { dir file })
  97
  98 manage_files_pattern(ipsec_t, ipsec_var_run_t, ipsec_var_run_t)
  99 manage_sock_files_pattern(ipsec_t, ipsec_var_run_t, ipsec_var_run_t)
 100 files_pid_filetrans(ipsec_t, ipsec_var_run_t, { file sock_file })
 101
 102 can_exec(ipsec_t, ipsec_mgmt_exec_t)
 103
 104 # pluto runs an updown script (by calling popen()!) as this is by default
 105 # a shell script, we need to find a way to make things work without
 106 # letting all sorts of stuff possibly be run...
 107 # so try flipping back into the ipsec_mgmt_t domain
 108 corecmd_shell_domtrans(ipsec_t, ipsec_mgmt_t)
 109 allow ipsec_mgmt_t ipsec_t:fd use;
 110 allow ipsec_mgmt_t ipsec_t:fifo_file rw_fifo_file_perms;
 111 dontaudit ipsec_mgmt_t ipsec_t:unix_stream_socket { read write };
 112 allow ipsec_mgmt_t ipsec_t:process sigchld;
 113
 114 kernel_read_kernel_sysctls(ipsec_t)
 115 kernel_list_proc(ipsec_t)
 116 kernel_read_proc_symlinks(ipsec_t)
 117 # allow pluto to access /proc/net/ipsec_eroute;
 118 kernel_read_system_state(ipsec_t)
 119 kernel_read_network_state(ipsec_t)
 120 kernel_read_software_raid_state(ipsec_t)
 121 kernel_request_load_module(ipsec_t)
 122 kernel_getattr_core_if(ipsec_t)
 123 kernel_getattr_message_if(ipsec_t)
 124
 125 corecmd_exec_shell(ipsec_t)
 126 corecmd_exec_bin(ipsec_t)
 127
 128 # Pluto needs network access
 129 corenet_all_recvfrom_unlabeled(ipsec_t)
 130 corenet_tcp_sendrecv_all_if(ipsec_t)
 131 corenet_raw_sendrecv_all_if(ipsec_t)
 132 corenet_tcp_sendrecv_all_nodes(ipsec_t)
 133 corenet_raw_sendrecv_all_nodes(ipsec_t)
 134 corenet_tcp_sendrecv_all_ports(ipsec_t)
 135 corenet_tcp_bind_all_nodes(ipsec_t)
 136 corenet_udp_bind_all_nodes(ipsec_t)
 137 corenet_tcp_bind_reserved_port(ipsec_t)
 138 corenet_tcp_bind_isakmp_port(ipsec_t)
 139 corenet_udp_bind_isakmp_port(ipsec_t)
 140 corenet_udp_bind_ipsecnat_port(ipsec_t)
 141 corenet_sendrecv_generic_server_packets(ipsec_t)
 142 corenet_sendrecv_isakmp_server_packets(ipsec_t)
 143
 144 dev_read_sysfs(ipsec_t)
 145 dev_read_rand(ipsec_t)
 146 dev_read_urand(ipsec_t)
 147
 148 domain_use_interactive_fds(ipsec_t)
 149
 150 files_list_tmp(ipsec_t)
 151 files_read_etc_files(ipsec_t)
 152 files_read_usr_files(ipsec_t)
 153
 154 fs_getattr_all_fs(ipsec_t)
 155 fs_search_auto_mountpoints(ipsec_t)
 156
 157 term_use_console(ipsec_t)
 158 term_dontaudit_use_all_ttys(ipsec_t)
 159
 160 auth_use_nsswitch(ipsec_t)
 161
 162 init_use_fds(ipsec_t)
 163 init_use_script_ptys(ipsec_t)
 164
 165 logging_send_syslog_msg(ipsec_t)
 166
 167 miscfiles_read_localization(ipsec_t)
 168
 169 sysnet_domtrans_ifconfig(ipsec_t)
 170
 171 userdom_dontaudit_use_unpriv_user_fds(ipsec_t)
 172 userdom_dontaudit_search_user_home_dirs(ipsec_t)
 173
 174 optional_policy(`
 175         seutil_sigchld_newrole(ipsec_t)
 176 ')
 177
 178 optional_policy(`
 179         udev_read_db(ipsec_t)
 180 ')
 181
 182 ########################################
 183 #
 184 # ipsec_mgmt Local policy
 185 #
 186
 187 allow ipsec_mgmt_t self:capability { dac_override dac_read_search net_admin setpcap sys_nice };
 188 dontaudit ipsec_mgmt_t self:capability sys_tty_config;
 189 allow ipsec_mgmt_t self:process { getsched ptrace setrlimit signal };
 190 allow ipsec_mgmt_t self:unix_stream_socket create_stream_socket_perms;
 191 allow ipsec_mgmt_t self:tcp_socket create_stream_socket_perms;
 192 allow ipsec_mgmt_t self:udp_socket create_socket_perms;
 193 allow ipsec_mgmt_t self:key_socket create_socket_perms;
 194 allow ipsec_mgmt_t self:fifo_file rw_fifo_file_perms;
 195
 196 allow ipsec_mgmt_t ipsec_mgmt_lock_t:file manage_file_perms;
 197 files_lock_filetrans(ipsec_mgmt_t, ipsec_mgmt_lock_t, file)
 198
 199 manage_dirs_pattern(ipsec_mgmt_t, ipsec_tmp_t, ipsec_tmp_t)
 200 manage_files_pattern(ipsec_mgmt_t, ipsec_tmp_t, ipsec_tmp_t)
 201 files_tmp_filetrans(ipsec_mgmt_t, ipsec_tmp_t, { dir file })
 202
 203 manage_files_pattern(ipsec_mgmt_t, ipsec_log_t, ipsec_log_t)
 204 logging_log_filetrans(ipsec_mgmt_t, ipsec_log_t, file)
 205
 206 allow ipsec_mgmt_t ipsec_mgmt_var_run_t:file manage_file_perms;
 207 files_pid_filetrans(ipsec_mgmt_t, ipsec_mgmt_var_run_t, file)
 208
 209 manage_files_pattern(ipsec_mgmt_t, ipsec_var_run_t, ipsec_var_run_t)
 210 manage_lnk_files_pattern(ipsec_mgmt_t, ipsec_var_run_t, ipsec_var_run_t)
 211
 212 allow ipsec_mgmt_t ipsec_var_run_t:sock_file manage_sock_file_perms;
 213 files_pid_filetrans(ipsec_mgmt_t, ipsec_var_run_t, sock_file)
 214
 215 # _realsetup needs to be able to cat /var/run/pluto.pid,
 216 # run ps on that pid, and delete the file
 217 read_files_pattern(ipsec_mgmt_t, ipsec_t, ipsec_t)
 218 read_lnk_files_pattern(ipsec_mgmt_t, ipsec_t, ipsec_t)
 219
 220 # logger, running in ipsec_mgmt_t needs to use sockets
 221 allow ipsec_mgmt_t self:unix_dgram_socket { create connect write };
 222 allow ipsec_mgmt_t ipsec_t:unix_dgram_socket { create connect write };
 223
 224 allow ipsec_mgmt_t ipsec_conf_file_t:file read_file_perms;
 225
 226 manage_files_pattern(ipsec_mgmt_t, ipsec_key_file_t, ipsec_key_file_t)
 227 manage_lnk_files_pattern(ipsec_mgmt_t, ipsec_key_file_t, ipsec_key_file_t)
 228 files_etc_filetrans(ipsec_mgmt_t, ipsec_key_file_t, file)
 229
 230 # whack needs to connect to pluto
 231 stream_connect_pattern(ipsec_mgmt_t, ipsec_var_run_t, ipsec_var_run_t, ipsec_t)
 232
 233 can_exec(ipsec_mgmt_t, ipsec_mgmt_exec_t)
 234 allow ipsec_mgmt_t ipsec_mgmt_exec_t:lnk_file read;
 235
 236 domtrans_pattern(ipsec_mgmt_t, ipsec_exec_t, ipsec_t)
 237
 238 kernel_rw_net_sysctls(ipsec_mgmt_t)
 239 # allow pluto to access /proc/net/ipsec_eroute;
 240 kernel_read_system_state(ipsec_mgmt_t)
 241 kernel_read_network_state(ipsec_mgmt_t)
 242 kernel_read_software_raid_state(ipsec_mgmt_t)
 243 kernel_read_kernel_sysctls(ipsec_mgmt_t)
 244 kernel_getattr_core_if(ipsec_mgmt_t)
 245 kernel_getattr_message_if(ipsec_mgmt_t)
 246
 247 files_read_kernel_symbol_table(ipsec_mgmt_t)
 248 files_getattr_kernel_modules(ipsec_mgmt_t)
 249
 250 # the default updown script wants to run route
 251 # the ipsec wrapper wants to run /usr/bin/logger (should we put
 252 # it in its own domain?)
 253 corecmd_exec_bin(ipsec_mgmt_t)
 254 corecmd_exec_shell(ipsec_mgmt_t)
 255
 256 dev_read_rand(ipsec_mgmt_t)
 257 dev_read_urand(ipsec_mgmt_t)
 258
 259 domain_use_interactive_fds(ipsec_mgmt_t)
 260 # denials when ps tries to search /proc. Do not audit these denials.
 261 domain_dontaudit_list_all_domains_state(ipsec_mgmt_t)
 262 # suppress audit messages about unnecessary socket access
 263 # cjp: this seems excessive
 264 domain_dontaudit_rw_all_udp_sockets(ipsec_mgmt_t)
 265 domain_dontaudit_rw_all_key_sockets(ipsec_mgmt_t)
 266
 267 files_read_etc_files(ipsec_mgmt_t)
 268 files_exec_etc_files(ipsec_mgmt_t)
 269 files_read_etc_runtime_files(ipsec_mgmt_t)
 270 files_read_usr_files(ipsec_mgmt_t)
 271 files_dontaudit_getattr_default_dirs(ipsec_mgmt_t)
 272 files_dontaudit_getattr_default_files(ipsec_mgmt_t)
 273 files_list_tmp(ipsec_mgmt_t)
 274
 275 fs_getattr_xattr_fs(ipsec_mgmt_t)
 276 fs_list_tmpfs(ipsec_mgmt_t)
 277
 278 term_use_console(ipsec_mgmt_t)
 279 term_dontaudit_getattr_unallocated_ttys(ipsec_mgmt_t)
 280
 281 init_use_script_ptys(ipsec_mgmt_t)
 282 init_exec_script_files(ipsec_mgmt_t)
 283 init_use_fds(ipsec_mgmt_t)
 284 init_labeled_script_domtrans(ipsec_mgmt_t, ipsec_initrc_exec_t)
 285
 286 logging_send_syslog_msg(ipsec_mgmt_t)
 287
 288 miscfiles_read_localization(ipsec_mgmt_t)
 289
 290 modutils_domtrans_insmod(ipsec_mgmt_t)
 291
 292 seutil_dontaudit_search_config(ipsec_mgmt_t)
 293
 294 sysnet_domtrans_ifconfig(ipsec_mgmt_t)
 295
 296 userdom_use_user_terminals(ipsec_mgmt_t)
 297
 298 optional_policy(`
 299         consoletype_exec(ipsec_mgmt_t)
 300 ')
 301
 302 optional_policy(`
 303         nscd_socket_use(ipsec_mgmt_t)
 304 ')
 305
 306 ifdef(`TODO',`
 307 # ideally it would not need this.  It wants to write to /root/.rnd
 308 file_type_auto_trans(ipsec_mgmt_t, sysadm_home_dir_t, sysadm_home_t, file)
 309
 310 allow ipsec_mgmt_t dev_fs:file_class_set getattr;
 311 ') dnl end TODO
 312
 313 ########################################
 314 #
 315 # Racoon local policy
 316 #
 317
 318 allow racoon_t self:capability { net_admin net_bind_service };
 319 allow racoon_t self:netlink_route_socket create_netlink_socket_perms;
 320 allow racoon_t self:unix_dgram_socket { connect create ioctl write };
 321 allow racoon_t self:netlink_selinux_socket { bind create read };
 322 allow racoon_t self:udp_socket create_socket_perms;
 323 allow racoon_t self:key_socket create_socket_perms;
 324 allow racoon_t self:fifo_file rw_fifo_file_perms;
 325
 326 manage_dirs_pattern(racoon_t, racoon_tmp_t, racoon_tmp_t)
 327 manage_files_pattern(racoon_t, racoon_tmp_t, racoon_tmp_t)
 328 files_tmp_filetrans(racoon_t, racoon_tmp_t, { dir file })
 329
 330 can_exec(racoon_t, racoon_exec_t)
 331
 332 can_exec(racoon_t, setkey_exec_t)
 333
 334 # manage pid file
 335 manage_files_pattern(racoon_t, ipsec_var_run_t, ipsec_var_run_t)
 336 manage_sock_files_pattern(racoon_t, ipsec_var_run_t, ipsec_var_run_t)
 337 files_pid_filetrans(racoon_t, ipsec_var_run_t, file)
 338
 339 allow racoon_t ipsec_conf_file_t:dir list_dir_perms;
 340 read_files_pattern(racoon_t, ipsec_conf_file_t, ipsec_conf_file_t)
 341 read_lnk_files_pattern(racoon_t, ipsec_conf_file_t, ipsec_conf_file_t)
 342
 343 allow racoon_t ipsec_key_file_t:dir list_dir_perms;
 344 read_files_pattern(racoon_t, ipsec_key_file_t, ipsec_key_file_t)
 345 read_lnk_files_pattern(racoon_t, ipsec_key_file_t, ipsec_key_file_t)
 346
 347 kernel_read_system_state(racoon_t)
 348 kernel_read_network_state(racoon_t)
 349 kernel_request_load_module(racoon_t)
 350
 351 corecmd_exec_shell(racoon_t)
 352 corecmd_exec_bin(racoon_t)
 353
 354 corenet_all_recvfrom_unlabeled(racoon_t)
 355 corenet_tcp_sendrecv_all_if(racoon_t)
 356 corenet_udp_sendrecv_all_if(racoon_t)
 357 corenet_tcp_sendrecv_all_nodes(racoon_t)
 358 corenet_udp_sendrecv_all_nodes(racoon_t)
 359 corenet_tcp_bind_all_nodes(racoon_t)
 360 corenet_udp_bind_all_nodes(racoon_t)
 361 corenet_udp_bind_isakmp_port(racoon_t)
 362 corenet_udp_bind_ipsecnat_port(racoon_t)
 363
 364 dev_read_urand(racoon_t)
 365
 366 # allow racoon to set contexts on ipsec policy and SAs
 367 domain_ipsec_setcontext_all_domains(racoon_t)
 368
 369 files_read_etc_files(racoon_t)
 370
 371 fs_dontaudit_getattr_xattr_fs(racoon_t)
 372
 373 # allow racoon to use avc_has_perm to check context on proposed SA
 374 selinux_compute_access_vector(racoon_t)
 375
 376 auth_use_nsswitch(racoon_t)
 377
 378 ipsec_setcontext_default_spd(racoon_t)
 379
 380 locallogin_use_fds(racoon_t)
 381
 382 logging_send_syslog_msg(racoon_t)
 383 logging_send_audit_msgs(racoon_t)
 384
 385 miscfiles_read_localization(racoon_t)
 386
 387 sysnet_exec_ifconfig(racoon_t)
 388
 389 auth_can_read_shadow_passwords(racoon_t)
 390 tunable_policy(`racoon_read_shadow',`
 391         auth_tunable_read_shadow(racoon_t)
 392 ')
 393
 394 ########################################
 395 #
 396 # Setkey local policy
 397 #
 398
 399 allow setkey_t self:capability net_admin;
 400 allow setkey_t self:key_socket create_socket_perms;
 401 allow setkey_t self:netlink_route_socket create_netlink_socket_perms;
 402
 403 allow setkey_t ipsec_conf_file_t:dir list_dir_perms;
 404 read_files_pattern(setkey_t, ipsec_conf_file_t, ipsec_conf_file_t)
 405 read_lnk_files_pattern(setkey_t, ipsec_conf_file_t, ipsec_conf_file_t)
 406
 407 kernel_request_load_module(setkey_t)
 408
 409 # allow setkey utility to set contexts on SA's and policy
 410 domain_ipsec_setcontext_all_domains(setkey_t)
 411
 412 files_read_etc_files(setkey_t)
 413
 414 init_dontaudit_use_fds(setkey_t)
 415
 416 # allow setkey to set the context for ipsec SAs and policy.
 417 ipsec_setcontext_default_spd(setkey_t)
 418
 419 locallogin_use_fds(setkey_t)
 420
 421 miscfiles_read_localization(setkey_t)
 422
 423 seutil_read_config(setkey_t)
 424
 425 userdom_use_user_terminals(setkey_t)