/usr/share/selinux/ubuntu/include/services/cron.if is in selinux-policy-ubuntu-dev 0.2.20091117-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 | ## <summary>Periodic execution of scheduled commands.</summary>
#######################################
## <summary>
## The common rules for a crontab domain.
## </summary>
## <param name="userdomain_prefix">
## <summary>
## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </summary>
## </param>
#
template(`cron_common_crontab_template',`
##############################
#
# Declarations
#
type $1_t;
application_domain($1_t, crontab_exec_t)
ubac_constrained($1_t)
type $1_tmp_t;
files_tmp_file($1_tmp_t)
##############################
#
# Local policy
#
# dac_override is to create the file in the directory under /tmp
allow $1_t self:capability { fowner setuid setgid chown dac_override };
allow $1_t self:process { setsched signal_perms };
allow $1_t self:fifo_file rw_fifo_file_perms;
allow $1_t $1_tmp_t:file manage_file_perms;
files_tmp_filetrans($1_t, $1_tmp_t, file)
# create files in /var/spool/cron
manage_files_pattern($1_t, { cron_spool_t user_cron_spool_t }, user_cron_spool_t)
filetrans_pattern($1_t, cron_spool_t, user_cron_spool_t, file)
files_list_spool($1_t)
# crontab signals crond by updating the mtime on the spooldir
allow $1_t cron_spool_t:dir setattr;
kernel_read_system_state($1_t)
# for the checks used by crontab -u
selinux_dontaudit_search_fs($1_t)
fs_getattr_xattr_fs($1_t)
domain_use_interactive_fds($1_t)
files_read_etc_files($1_t)
files_read_usr_files($1_t)
files_dontaudit_search_pids($1_t)
auth_domtrans_chk_passwd($1_t)
logging_send_syslog_msg($1_t)
logging_send_audit_msgs($1_t)
init_dontaudit_write_utmp($1_t)
init_read_utmp($1_t)
miscfiles_read_localization($1_t)
seutil_read_config($1_t)
userdom_manage_user_tmp_dirs($1_t)
userdom_manage_user_tmp_files($1_t)
# Access terminals.
userdom_use_user_terminals($1_t)
# Read user crontabs
userdom_read_user_home_content_files($1_t)
tunable_policy(`fcron_crond',`
# fcron wants an instant update of a crontab change for the administrator
# also crontab does a security check for crontab -u
dontaudit $1_t crond_t:process signal;
')
optional_policy(`
nscd_socket_use($1_t)
')
')
########################################
## <summary>
## Role access for cron
## </summary>
## <param name="role">
## <summary>
## Role allowed access
## </summary>
## </param>
## <param name="domain">
## <summary>
## User domain for the role
## </summary>
## </param>
#
interface(`cron_role',`
gen_require(`
type cronjob_t, crontab_t, crontab_exec_t;
')
role $1 types { cronjob_t crontab_t };
# cronjob shows up in user ps
ps_process_pattern($2, cronjob_t)
# Transition from the user domain to the derived domain.
domtrans_pattern($2, crontab_exec_t, crontab_t)
# crontab shows up in user ps
ps_process_pattern($2, crontab_t)
allow $2 crontab_t:process signal;
# Run helper programs as the user domain
#corecmd_bin_domtrans(crontab_t, $2)
#corecmd_shell_domtrans(crontab_t, $2)
corecmd_exec_bin(crontab_t)
corecmd_exec_shell(crontab_t)
optional_policy(`
gen_require(`
class dbus send_msg;
')
dbus_stub(cronjob_t)
allow cronjob_t $2:dbus send_msg;
')
')
########################################
## <summary>
## Role access for unconfined cronjobs
## </summary>
## <param name="role">
## <summary>
## Role allowed access
## </summary>
## </param>
## <param name="domain">
## <summary>
## User domain for the role
## </summary>
## </param>
#
interface(`cron_unconfined_role',`
gen_require(`
type unconfined_cronjob_t, crontab_t, crontab_tmp_t, crontab_exec_t;
')
role $1 types { unconfined_cronjob_t crontab_t };
# cronjob shows up in user ps
ps_process_pattern($2, unconfined_cronjob_t)
# Transition from the user domain to the derived domain.
domtrans_pattern($2, crontab_exec_t, crontab_t)
# crontab shows up in user ps
ps_process_pattern($2, crontab_t)
allow $2 crontab_t:process signal;
# Run helper programs as the user domain
#corecmd_bin_domtrans(crontab_t, $2)
#corecmd_shell_domtrans(crontab_t, $2)
corecmd_exec_bin(crontab_t)
corecmd_exec_shell(crontab_t)
optional_policy(`
gen_require(`
class dbus send_msg;
')
dbus_stub(unconfined_cronjob_t)
allow unconfined_cronjob_t $2:dbus send_msg;
')
')
########################################
## <summary>
## Role access for cron
## </summary>
## <param name="role">
## <summary>
## Role allowed access
## </summary>
## </param>
## <param name="domain">
## <summary>
## User domain for the role
## </summary>
## </param>
#
interface(`cron_admin_role',`
gen_require(`
type cronjob_t, crontab_exec_t, admin_crontab_t, admin_crontab_tmp_t;
class passwd crontab;
')
role $1 types { cronjob_t admin_crontab_t admin_crontab_tmp_t };
# cronjob shows up in user ps
ps_process_pattern($2, cronjob_t)
# Manipulate other users crontab.
allow $2 self:passwd crontab;
# Transition from the user domain to the derived domain.
domtrans_pattern($2, crontab_exec_t, admin_crontab_t)
# crontab shows up in user ps
ps_process_pattern($2, admin_crontab_t)
allow $2 admin_crontab_t:process signal;
# Run helper programs as the user domain
#corecmd_bin_domtrans(admin_crontab_t, $2)
#corecmd_shell_domtrans(admin_crontab_t, $2)
corecmd_exec_bin(admin_crontab_t)
corecmd_exec_shell(admin_crontab_t)
optional_policy(`
gen_require(`
class dbus send_msg;
')
dbus_stub(admin_cronjob_t)
allow cronjob_t $2:dbus send_msg;
')
')
########################################
## <summary>
## Make the specified program domain accessable
## from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## The type of the process to transition to.
## </summary>
## </param>
## <param name="entrypoint">
## <summary>
## The type of the file used as an entrypoint to this domain.
## </summary>
## </param>
#
interface(`cron_system_entry',`
gen_require(`
type crond_t, system_cronjob_t;
')
domtrans_pattern(system_cronjob_t, $2, $1)
domtrans_pattern(crond_t, $2, $1)
role system_r types $1;
')
########################################
## <summary>
## Execute cron in the cron system domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_domtrans',`
gen_require(`
type system_cronjob_t, crond_exec_t;
')
domtrans_pattern($1, crond_exec_t, system_cronjob_t)
')
########################################
## <summary>
## Execute crond_exec_t
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_exec',`
gen_require(`
type crond_exec_t;
')
can_exec($1, crond_exec_t)
')
########################################
## <summary>
## Execute crond server in the nscd domain.
## </summary>
## <param name="domain">
## <summary>
## The type of the process performing this action.
## </summary>
## </param>
#
interface(`cron_initrc_domtrans',`
gen_require(`
type crond_initrc_exec_t;
')
init_labeled_script_domtrans($1, crond_initrc_exec_t)
')
########################################
## <summary>
## Inherit and use a file descriptor
## from the cron daemon.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_use_fds',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fd use;
')
########################################
## <summary>
## Send a SIGCHLD signal to the cron daemon.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_sigchld',`
gen_require(`
type crond_t;
')
allow $1 crond_t:process sigchld;
')
########################################
## <summary>
## Read a cron daemon unnamed pipe.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_pipes',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fifo_file read_fifo_file_perms;
')
########################################
## <summary>
## Do not audit attempts to write cron daemon unnamed pipes.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_dontaudit_write_pipes',`
gen_require(`
type crond_t;
')
dontaudit $1 crond_t:fifo_file write;
')
########################################
## <summary>
## Read and write a cron daemon unnamed pipe.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_pipes',`
gen_require(`
type crond_t;
')
allow $1 crond_t:fifo_file { getattr read write };
')
########################################
## <summary>
## Read, and write cron daemon TCP sockets.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_tcp_sockets',`
gen_require(`
type crond_t;
')
allow $1 crond_t:tcp_socket { read write };
')
########################################
## <summary>
## Dontaudit Read, and write cron daemon TCP sockets.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_dontaudit_rw_tcp_sockets',`
gen_require(`
type crond_t;
')
dontaudit $1 crond_t:tcp_socket { read write };
')
########################################
## <summary>
## Search the directory containing user cron tables.
## </summary>
## <param name="domain">
## <summary>
## The type of the process to performing this action.
## </summary>
## </param>
#
interface(`cron_search_spool',`
gen_require(`
type cron_spool_t;
')
files_search_spool($1)
allow $1 cron_spool_t:dir search_dir_perms;
')
########################################
## <summary>
## Manage pid files used by cron
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_manage_pid_files',`
gen_require(`
type crond_var_run_t;
')
manage_files_pattern($1, crond_var_run_t, crond_var_run_t)
')
########################################
## <summary>
## Execute anacron in the cron system domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_anacron_domtrans_system_job',`
gen_require(`
type system_cronjob_t, anacron_exec_t;
')
domtrans_pattern($1, anacron_exec_t, system_cronjob_t)
')
########################################
## <summary>
## Inherit and use a file descriptor
## from system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_use_system_job_fds',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:fd use;
')
########################################
## <summary>
## Write a system cron job unnamed pipe.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_write_system_job_pipes',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:file write;
')
########################################
## <summary>
## Read and write a system cron job unnamed pipe.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_system_job_pipes',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:fifo_file rw_fifo_file_perms;
')
########################################
## <summary>
## Allow read/write unix stream sockets from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_rw_system_job_stream_sockets',`
gen_require(`
type system_cronjob_t;
')
allow $1 system_cronjob_t:unix_stream_socket { read write };
')
########################################
## <summary>
## Read temporary files from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`cron_read_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
files_search_tmp($1)
allow $1 system_cronjob_tmp_t:file read_file_perms;
')
########################################
## <summary>
## Do not audit attempts to append temporary
## files from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_append_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
dontaudit $1 system_cronjob_tmp_t:file append_file_perms;
')
########################################
## <summary>
## Do not audit attempts to write temporary
## files from the system cron jobs.
## </summary>
## <param name="domain">
## <summary>
## Domain to not audit.
## </summary>
## </param>
#
interface(`cron_dontaudit_write_system_job_tmp_files',`
gen_require(`
type system_cronjob_tmp_t;
')
dontaudit $1 system_cronjob_tmp_t:file write_file_perms;
')
|