policy/modules/system/udev.te

   1 policy_module(udev, 1.12.2)
   2
   3 ########################################
   4 #
   5 # Declarations
   6 #
   7
   8 type udev_t;
   9 type udev_exec_t;
  10 type udev_helper_exec_t;
  11 kernel_domtrans_to(udev_t, udev_exec_t)
  12 domain_obj_id_change_exemption(udev_t)
  13 domain_entry_file(udev_t, udev_helper_exec_t)
  14 domain_interactive_fd(udev_t)
  15 init_daemon_domain(udev_t, udev_exec_t)
  16
  17 type udev_etc_t alias etc_udev_t;
  18 files_config_file(udev_etc_t)
  19
  20 type udev_rules_t;
  21 files_type(udev_rules_t)
  22
  23 type udev_var_run_t;
  24 files_pid_file(udev_var_run_t)
  25 typealias udev_var_run_t alias udev_tbl_t;
  26
  27 ifdef(`enable_mcs',`
  28         kernel_ranged_domtrans_to(udev_t, udev_exec_t, s0 - mcs_systemhigh)
  29         init_ranged_daemon_domain(udev_t, udev_exec_t, s0 - mcs_systemhigh)
  30 ')
  31
  32 ########################################
  33 #
  34 # Local policy
  35 #
  36
  37 allow udev_t self:capability { chown dac_override dac_read_search fowner fsetid sys_admin mknod net_raw net_admin sys_nice sys_rawio sys_resource setuid setgid sys_nice };
  38 dontaudit udev_t self:capability sys_tty_config;
  39
  40 ifdef(`hide_broken_symptoms',`
  41         # caused by some bogus kernel code
  42         dontaudit udev_t self:capability sys_module;
  43 ')
  44
  45 allow udev_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
  46 tunable_policy(`deny_ptrace',`',`
  47         allow udev_t self:process ptrace;
  48 ')
  49
  50 allow udev_t self:process { execmem setfscreate };
  51 allow udev_t self:fd use;
  52 allow udev_t self:fifo_file rw_fifo_file_perms;
  53 allow udev_t self:sock_file read_sock_file_perms;
  54 allow udev_t self:shm create_shm_perms;
  55 allow udev_t self:sem create_sem_perms;
  56 allow udev_t self:msgq create_msgq_perms;
  57 allow udev_t self:msg { send receive };
  58 allow udev_t self:unix_stream_socket { listen accept };
  59 allow udev_t self:unix_dgram_socket sendto;
  60 allow udev_t self:unix_stream_socket connectto;
  61 allow udev_t self:netlink_kobject_uevent_socket create_socket_perms;
  62 allow udev_t self:rawip_socket create_socket_perms;
  63 allow udev_t self:netlink_socket create_socket_perms;
  64
  65 allow udev_t udev_exec_t:file write;
  66 can_exec(udev_t, udev_exec_t)
  67
  68 allow udev_t udev_helper_exec_t:dir list_dir_perms;
  69 can_exec(udev_t, udev_helper_exec_t)
  70
  71 # read udev config
  72 allow udev_t udev_etc_t:file read_file_perms;
  73
  74 list_dirs_pattern(udev_t, udev_rules_t, udev_rules_t)
  75 manage_files_pattern(udev_t, udev_rules_t, udev_rules_t)
  76 manage_lnk_files_pattern(udev_t, udev_rules_t, udev_rules_t)
  77
  78 manage_dirs_pattern(udev_t, udev_var_run_t, udev_var_run_t)
  79 manage_sock_files_pattern(udev_t, udev_var_run_t, udev_var_run_t)
  80 manage_files_pattern(udev_t, udev_var_run_t, udev_var_run_t)
  81 manage_lnk_files_pattern(udev_t, udev_var_run_t, udev_var_run_t)
  82 files_pid_filetrans(udev_t, udev_var_run_t, { file dir })
  83 allow udev_t udev_var_run_t:file mounton;
  84 dev_filetrans(udev_t, udev_var_run_t, { file lnk_file } )
  85
  86 kernel_read_system_state(udev_t)
  87 kernel_request_load_module(udev_t)
  88 kernel_getattr_core_if(udev_t)
  89 kernel_use_fds(udev_t)
  90 kernel_read_device_sysctls(udev_t)
  91 kernel_read_hotplug_sysctls(udev_t)
  92 kernel_read_modprobe_sysctls(udev_t)
  93 kernel_read_kernel_sysctls(udev_t)
  94 kernel_rw_hotplug_sysctls(udev_t)
  95 kernel_rw_unix_dgram_sockets(udev_t)
  96 kernel_dgram_send(udev_t)
  97 kernel_signal(udev_t)
  98 kernel_search_debugfs(udev_t)
  99 kernel_stream_connect(udev_t)
 100
 101 #https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=235182
 102 kernel_rw_net_sysctls(udev_t)
 103 kernel_read_network_state(udev_t)
 104 kernel_read_software_raid_state(udev_t)
 105
 106 corecmd_exec_all_executables(udev_t)
 107
 108 dev_rw_sysfs(udev_t)
 109 dev_manage_all_dev_nodes(udev_t)
 110 dev_rw_generic_usb_dev(udev_t)
 111 dev_rw_generic_files(udev_t)
 112 dev_delete_generic_files(udev_t)
 113 dev_search_usbfs(udev_t)
 114 dev_relabel_all_dev_nodes(udev_t)
 115 # udev_node.c/node_symlink() symlink labels are explicitly
 116 # preserved, instead of short circuiting the relabel
 117 dev_relabel_generic_symlinks(udev_t)
 118 dev_manage_generic_symlinks(udev_t)
 119 dev_filetrans_all_named_dev(udev_t)
 120
 121 domain_read_all_domains_state(udev_t)
 122 domain_dontaudit_ptrace_all_domains(udev_t) #pidof triggers these
 123
 124 files_read_usr_files(udev_t)
 125 files_read_etc_runtime_files(udev_t)
 126 files_read_kernel_modules(udev_t)
 127 files_read_system_conf_files(udev_t)
 128
 129 # console_init manages files in /etc/sysconfig
 130 files_manage_etc_files(udev_t)
 131 files_exec_etc_files(udev_t)
 132 files_exec_usr_files(udev_t)
 133 files_dontaudit_search_isid_type_dirs(udev_t)
 134 files_getattr_generic_locks(udev_t)
 135 files_search_mnt(udev_t)
 136 files_list_tmp(udev_t)
 137
 138 fs_getattr_all_fs(udev_t)
 139 fs_list_inotifyfs(udev_t)
 140 fs_rw_anon_inodefs_files(udev_t)
 141 fs_list_auto_mountpoints(udev_t)
 142 fs_list_hugetlbfs(udev_t)
 143
 144 mcs_ptrace_all(udev_t)
 145
 146 mls_file_read_all_levels(udev_t)
 147 mls_file_write_all_levels(udev_t)
 148 mls_file_upgrade(udev_t)
 149 mls_file_downgrade(udev_t)
 150 mls_process_write_down(udev_t)
 151
 152 selinux_get_fs_mount(udev_t)
 153 selinux_validate_context(udev_t)
 154 selinux_compute_access_vector(udev_t)
 155 selinux_compute_create_context(udev_t)
 156 selinux_compute_relabel_context(udev_t)
 157 selinux_compute_user_contexts(udev_t)
 158
 159 auth_read_pam_console_data(udev_t)
 160 auth_domtrans_pam_console(udev_t)
 161 auth_use_nsswitch(udev_t)
 162
 163 init_read_utmp(udev_t)
 164 init_dontaudit_write_utmp(udev_t)
 165 init_getattr_initctl(udev_t)
 166 init_stream_connect(udev_t)
 167
 168 logging_search_logs(udev_t)
 169 logging_send_syslog_msg(udev_t)
 170 logging_send_audit_msgs(udev_t)
 171
 172 miscfiles_read_localization(udev_t)
 173 miscfiles_read_hwdata(udev_t)
 174
 175 modutils_domtrans_insmod(udev_t)
 176 # read modules.inputmap:
 177 modutils_read_module_deps(udev_t)
 178
 179 seutil_read_config(udev_t)
 180 seutil_read_default_contexts(udev_t)
 181 seutil_read_file_contexts(udev_t)
 182 seutil_domtrans_setfiles(udev_t)
 183
 184 sysnet_domtrans_ifconfig(udev_t)
 185 sysnet_domtrans_dhcpc(udev_t)
 186 sysnet_rw_dhcp_config(udev_t)
 187 sysnet_read_dhcpc_pid(udev_t)
 188 sysnet_delete_dhcpc_pid(udev_t)
 189 sysnet_signal_dhcpc(udev_t)
 190 sysnet_manage_config(udev_t)
 191 sysnet_etc_filetrans_config(udev_t)
 192
 193 systemd_login_read_pid_files(udev_t)
 194
 195 userdom_dontaudit_search_user_home_content(udev_t)
 196
 197 ifdef(`distro_gentoo',`
 198         # during boot, init scripts use /dev/.rcsysinit
 199         # existance to determine if we are in early booting
 200         init_getattr_script_status_files(udev_t)
 201 ')
 202
 203 ifdef(`distro_redhat',`
 204         fs_manage_tmpfs_dirs(udev_t)
 205         fs_manage_tmpfs_files(udev_t)
 206         fs_manage_tmpfs_symlinks(udev_t)
 207         fs_manage_tmpfs_sockets(udev_t)
 208         fs_manage_tmpfs_blk_files(udev_t)
 209         fs_manage_tmpfs_chr_files(udev_t)
 210         fs_relabel_tmpfs_blk_file(udev_t)
 211         fs_relabel_tmpfs_chr_file(udev_t)
 212         fs_manage_hugetlbfs_dirs(udev_t)
 213
 214         term_use_generic_ptys(udev_t)
 215
 216         # for arping used for static IP addresses on PCMCIA ethernet
 217         netutils_domtrans(udev_t)
 218
 219         optional_policy(`
 220                 unconfined_domain(udev_t)
 221         ')
 222 ')
 223
 224 optional_policy(`
 225         alsa_domtrans(udev_t)
 226         alsa_read_lib(udev_t)
 227         alsa_read_rw_config(udev_t)
 228 ')
 229
 230 optional_policy(`
 231         bluetooth_domtrans(udev_t)
 232 ')
 233
 234 optional_policy(`
 235         brctl_domtrans(udev_t)
 236 ')
 237
 238 optional_policy(`
 239         clock_domtrans(udev_t)
 240 ')
 241
 242 optional_policy(`
 243         consolekit_read_pid_files(udev_t)
 244 ')
 245
 246 optional_policy(`
 247         consoletype_exec(udev_t)
 248 ')
 249
 250 optional_policy(`
 251         cups_domtrans_config(udev_t)
 252         cups_read_config(udev_t)
 253 ')
 254
 255 optional_policy(`
 256         dbus_system_bus_client(udev_t)
 257 ')
 258
 259 optional_policy(`
 260         devicekit_read_pid_files(udev_t)
 261         devicekit_dgram_send(udev_t)
 262         devicekit_domtrans_disk(udev_t)
 263 ')
 264
 265 optional_policy(`
 266         gpsd_domtrans(udev_t)
 267 ')
 268
 269 optional_policy(`
 270         lvm_domtrans(udev_t)
 271         lvm_dgram_send(udev_t)
 272 ')
 273
 274 optional_policy(`
 275         fstools_domtrans(udev_t)
 276 ')
 277
 278 optional_policy(`
 279         hal_dgram_send(udev_t)
 280
 281         ifdef(`hide_broken_symptoms',`
 282                 hal_dontaudit_rw_dgram_sockets(udev_t)
 283         ')
 284 ')
 285
 286 optional_policy(`
 287         hotplug_read_config(udev_t)
 288         # usb.agent searches /var/run/usb
 289         hotplug_search_pids(udev_t)
 290 ')
 291
 292 optional_policy(`
 293         mount_domtrans(udev_t)
 294 ')
 295
 296 optional_policy(`
 297         networkmanager_dbus_chat(udev_t)
 298 ')
 299
 300 optional_policy(`
 301         openct_read_pid_files(udev_t)
 302         openct_domtrans(udev_t)
 303 ')
 304
 305 optional_policy(`
 306         pcscd_read_pub_files(udev_t)
 307         pcscd_domtrans(udev_t)
 308 ')
 309
 310 optional_policy(`
 311         raid_domtrans_mdadm(udev_t)
 312 ')
 313
 314 optional_policy(`
 315         usbmuxd_domtrans(udev_t)
 316         usbmuxd_stream_connect(udev_t)
 317 ')
 318
 319 optional_policy(`
 320         unconfined_signal(udev_t)
 321 ')
 322
 323 optional_policy(`
 324         vbetool_domtrans(udev_t)
 325 ')
 326
 327 optional_policy(`
 328         kernel_write_xen_state(udev_t)
 329         kernel_read_xen_state(udev_t)
 330         xen_manage_log(udev_t)
 331         xen_read_image_files(udev_t)
 332 ')
 333
 334 optional_policy(`
 335         xserver_read_xdm_pid(udev_t)
 336 ')