1 /************************************************* 2 * Exim - an Internet mail transport agent * 3 *************************************************/ 4 5 /* Copyright (c) University of Cambridge 1995 - 2018 */ 6 /* Copyright (c) The Exim Maintainers 2020 */ 7 /* See the file NOTICE for conditions of use and distribution. */ 8 9 /* All the global variables are defined together in this one module, so 10 that they are easy to find. */ 11 12 #include "exim.h" 13 14 15 /* Generic options for auths, all of which live inside auth_instance 16 data blocks and hence have the opt_public flag set. */ 17 18 optionlist optionlist_auths[] = { 19 { "client_condition", opt_stringptr | opt_public, 20 OPT_OFF(auth_instance, client_condition) }, 21 { "client_set_id", opt_stringptr | opt_public, 22 OPT_OFF(auth_instance, set_client_id) }, 23 { "driver", opt_stringptr | opt_public, 24 OPT_OFF(auth_instance, driver_name) }, 25 { "public_name", opt_stringptr | opt_public, 26 OPT_OFF(auth_instance, public_name) }, 27 { "server_advertise_condition", opt_stringptr | opt_public, 28 OPT_OFF(auth_instance, advertise_condition)}, 29 { "server_condition", opt_stringptr | opt_public, 30 OPT_OFF(auth_instance, server_condition) }, 31 { "server_debug_print", opt_stringptr | opt_public, 32 OPT_OFF(auth_instance, server_debug_string) }, 33 { "server_mail_auth_condition", opt_stringptr | opt_public, 34 OPT_OFF(auth_instance, mail_auth_condition) }, 35 { "server_set_id", opt_stringptr | opt_public, 36 OPT_OFF(auth_instance, set_id) } 37 }; 38 39 int optionlist_auths_size = nelem(optionlist_auths); 40 41 /* An empty host aliases list. */ 42 43 uschar *no_aliases = NULL; 44 45 46 /* For comments on these variables, see globals.h. I'm too idle to 47 duplicate them here... */ 48 49 #ifdef EXIM_PERL 50 uschar *opt_perl_startup = NULL; 51 BOOL opt_perl_at_start = FALSE; 52 BOOL opt_perl_started = FALSE; 53 BOOL opt_perl_taintmode = FALSE; 54 #endif 55 56 #ifdef EXPAND_DLFUNC 57 tree_node *dlobj_anchor = NULL; 58 #endif 59 60 #ifdef LOOKUP_IBASE 61 uschar *ibase_servers = NULL; 62 #endif 63 64 #ifdef LOOKUP_LDAP 65 uschar *eldap_ca_cert_dir = NULL; 66 uschar *eldap_ca_cert_file = NULL; 67 uschar *eldap_cert_file = NULL; 68 uschar *eldap_cert_key = NULL; 69 uschar *eldap_cipher_suite = NULL; 70 uschar *eldap_default_servers = NULL; 71 uschar *eldap_require_cert = NULL; 72 int eldap_version = -1; 73 BOOL eldap_start_tls = FALSE; 74 #endif 75 76 #ifdef LOOKUP_MYSQL 77 uschar *mysql_servers = NULL; 78 #endif 79 80 #ifdef LOOKUP_ORACLE 81 uschar *oracle_servers = NULL; 82 #endif 83 84 #ifdef LOOKUP_PGSQL 85 uschar *pgsql_servers = NULL; 86 #endif 87 88 #ifdef LOOKUP_REDIS 89 uschar *redis_servers = NULL; 90 #endif 91 92 #ifdef LOOKUP_SQLITE 93 uschar *sqlite_dbfile = NULL; 94 int sqlite_lock_timeout = 5; 95 #endif 96 97 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES 98 BOOL move_frozen_messages = FALSE; 99 #endif 100 101 #ifdef ALLOW_INSECURE_TAINTED_DATA 102 BOOL allow_insecure_tainted_data = FALSE; 103 #endif 104 105 /* These variables are outside the #ifdef because it keeps the code less 106 cluttered in several places (e.g. during logging) if we can always refer to 107 them. Also, the tls_ variables are now always visible. Note that these are 108 only used for smtp connections, not for service-daemon access. */ 109 110 tls_support tls_in = { 111 .active = {.sock = -1} 112 /* all other elements zero */ 113 }; 114 tls_support tls_out = { 115 .active = {.sock = -1}, 116 /* all other elements zero */ 117 }; 118 119 uschar *dsn_envid = NULL; 120 int dsn_ret = 0; 121 const pcre *regex_DSN = NULL; 122 uschar *dsn_advertise_hosts = NULL; 123 124 #ifndef DISABLE_TLS 125 BOOL gnutls_compat_mode = FALSE; 126 BOOL gnutls_allow_auto_pkcs11 = FALSE; 127 uschar *hosts_require_alpn = NULL; 128 uschar *openssl_options = NULL; 129 const pcre *regex_STARTTLS = NULL; 130 uschar *tls_advertise_hosts = US"*"; 131 uschar *tls_alpn = US"smtp:esmtp"; 132 uschar *tls_certificate = NULL; 133 uschar *tls_crl = NULL; 134 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because 135 that's the interop problem which has been observed: GnuTLS suggesting a higher 136 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */ 137 int tls_dh_max_bits = 2236; 138 uschar *tls_dhparam = NULL; 139 uschar *tls_eccurve = US"auto"; 140 # ifndef DISABLE_OCSP 141 uschar *tls_ocsp_file = NULL; 142 # endif 143 uschar *tls_privatekey = NULL; 144 BOOL tls_remember_esmtp = FALSE; 145 uschar *tls_require_ciphers = NULL; 146 # ifndef DISABLE_TLS_RESUME 147 uschar *tls_resumption_hosts = NULL; 148 # endif 149 uschar *tls_try_verify_hosts = NULL; 150 uschar *tls_verify_certificates= US"system"; 151 uschar *tls_verify_hosts = NULL; 152 int tls_watch_fd = -1; 153 time_t tls_watch_trigger_time = (time_t)0; 154 #else /*DISABLE_TLS*/ 155 uschar *tls_advertise_hosts = NULL; 156 #endif 157 158 #ifndef DISABLE_PRDR 159 /* Per Recipient Data Response variables */ 160 BOOL prdr_enable = FALSE; 161 BOOL prdr_requested = FALSE; 162 const pcre *regex_PRDR = NULL; 163 #endif 164 165 #ifdef SUPPORT_I18N 166 const pcre *regex_UTF8 = NULL; 167 #endif 168 169 /* Input-reading functions for messages, so we can use special ones for 170 incoming TCP/IP. The defaults use stdin. We never need these for any 171 stand-alone tests. */ 172 173 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF) 174 int (*lwr_receive_getc)(unsigned) = stdin_getc; 175 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL; 176 int (*lwr_receive_ungetc)(int) = stdin_ungetc; 177 BOOL (*lwr_receive_hasc)(void) = stdin_hasc; 178 179 int (*receive_getc)(unsigned) = stdin_getc; 180 uschar * (*receive_getbuf)(unsigned *) = NULL; 181 void (*receive_get_cache)(unsigned) = NULL; 182 BOOL (*receive_hasc)(void) = stdin_hasc; 183 int (*receive_ungetc)(int) = stdin_ungetc; 184 int (*receive_feof)(void) = stdin_feof; 185 int (*receive_ferror)(void) = stdin_ferror; 186 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */ 187 #endif 188 189 190 /* List of per-address expansion variables for clearing and saving/restoring 191 when verifying one address while routing/verifying another. We have to have 192 the size explicit, because it is referenced from more than one module. */ 193 194 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = { 195 CUSS &deliver_address_data, 196 CUSS &deliver_domain, 197 CUSS &deliver_domain_data, 198 CUSS &deliver_domain_orig, 199 CUSS &deliver_domain_parent, 200 CUSS &deliver_localpart, 201 CUSS &deliver_localpart_data, 202 CUSS &deliver_localpart_orig, 203 CUSS &deliver_localpart_parent, 204 CUSS &deliver_localpart_prefix, 205 CUSS &deliver_localpart_suffix, 206 CUSS (uschar **)(&deliver_recipients), 207 CUSS &deliver_host, 208 CUSS &deliver_home, 209 CUSS &address_file, 210 CUSS &address_pipe, 211 CUSS &self_hostname, 212 NULL }; 213 214 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **); 215 216 /******************************************************************************/ 217 /* General global variables. Boolean flags are done as a group 218 so that only one bit each is needed, packed, for all those we never 219 need to take a pointer - and only a char for the rest. 220 This means a struct, unfortunately since it clutters the sourcecode. */ 221 222 struct global_flags f = 223 { 224 .acl_temp_details = FALSE, 225 .active_local_from_check = FALSE, 226 .active_local_sender_retain = FALSE, 227 .address_test_mode = FALSE, 228 .admin_user = FALSE, 229 .allow_auth_unadvertised= FALSE, 230 .allow_unqualified_recipient = TRUE, /* For local messages */ 231 .allow_unqualified_sender = TRUE, /* Reset for SMTP */ 232 .authentication_local = FALSE, 233 234 .background_daemon = TRUE, 235 .bdat_readers_wanted = FALSE, 236 237 .chunking_offered = FALSE, 238 .config_changed = FALSE, 239 .continue_more = FALSE, 240 241 .daemon_listen = FALSE, 242 .debug_daemon = FALSE, 243 .deliver_firsttime = FALSE, 244 .deliver_force = FALSE, 245 .deliver_freeze = FALSE, 246 .deliver_force_thaw = FALSE, 247 .deliver_manual_thaw = FALSE, 248 .deliver_selectstring_regex = FALSE, 249 .deliver_selectstring_sender_regex = FALSE, 250 .disable_callout_flush = FALSE, 251 .disable_delay_flush = FALSE, 252 .disable_logging = FALSE, 253 #ifndef DISABLE_DKIM 254 .dkim_disable_verify = FALSE, 255 .dkim_init_done = FALSE, 256 #endif 257 #ifdef SUPPORT_DMARC 258 .dmarc_has_been_checked = FALSE, 259 .dmarc_disable_verify = FALSE, 260 .dmarc_enable_forensic = FALSE, 261 #endif 262 .dont_deliver = FALSE, 263 .dot_ends = TRUE, 264 265 .enable_dollar_recipients = FALSE, 266 .expand_string_forcedfail = FALSE, 267 268 .filter_running = FALSE, 269 270 .header_rewritten = FALSE, 271 .helo_verified = FALSE, 272 .helo_verify_failed = FALSE, 273 .host_checking_callout = FALSE, 274 .host_find_failed_syntax= FALSE, 275 276 .inetd_wait_mode = FALSE, 277 .is_inetd = FALSE, 278 279 .local_error_message = FALSE, 280 .log_testing_mode = FALSE, 281 282 #ifdef WITH_CONTENT_SCAN 283 .no_mbox_unspool = FALSE, 284 #endif 285 .no_multiline_responses = FALSE, 286 287 .parse_allow_group = FALSE, 288 .parse_found_group = FALSE, 289 .pipelining_enable = TRUE, 290 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) 291 .proxy_session_failed = FALSE, 292 #endif 293 294 .queue_2stage = FALSE, 295 .queue_only_policy = FALSE, 296 .queue_run_first_delivery = FALSE, 297 .queue_run_force = FALSE, 298 .queue_run_local = FALSE, 299 .queue_running = FALSE, 300 .queue_smtp = FALSE, 301 302 .really_exim = TRUE, 303 .receive_call_bombout = FALSE, 304 .recipients_discarded = FALSE, 305 .running_in_test_harness = FALSE, 306 307 .search_find_defer = FALSE, 308 .sender_address_forced = FALSE, 309 .sender_host_notsocket = FALSE, 310 .sender_host_unknown = FALSE, 311 .sender_local = FALSE, 312 .sender_name_forced = FALSE, 313 .sender_set_untrusted = FALSE, 314 .smtp_authenticated = FALSE, 315 #ifndef DISABLE_PIPE_CONNECT 316 .smtp_in_early_pipe_advertised = FALSE, 317 .smtp_in_early_pipe_no_auth = FALSE, 318 .smtp_in_early_pipe_used = FALSE, 319 #endif 320 .smtp_in_pipelining_advertised = FALSE, 321 .smtp_in_pipelining_used = FALSE, 322 .smtp_in_quit = FALSE, 323 .spool_file_wireformat = FALSE, 324 .submission_mode = FALSE, 325 .suppress_local_fixups = FALSE, 326 .suppress_local_fixups_default = FALSE, 327 .synchronous_delivery = FALSE, 328 .system_filtering = FALSE, 329 330 .taint_check_slow = FALSE, 331 .testsuite_delays = TRUE, 332 .tcp_fastopen_ok = FALSE, 333 .tcp_in_fastopen = FALSE, 334 .tcp_in_fastopen_data = FALSE, 335 .tcp_in_fastopen_logged = FALSE, 336 .tcp_out_fastopen_logged= FALSE, 337 .timestamps_utc = FALSE, 338 .transport_filter_timed_out = FALSE, 339 .trusted_caller = FALSE, 340 .trusted_config = TRUE, 341 }; 342 343 /******************************************************************************/ 344 /* These are the flags which are either variables or mainsection options, 345 so an address is needed for access, or are exported to local_scan. */ 346 347 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */ 348 BOOL allow_domain_literals = FALSE; 349 BOOL allow_mx_to_ip = FALSE; 350 BOOL allow_utf8_domains = FALSE; 351 BOOL authentication_failed = FALSE; 352 353 BOOL bounce_return_body = TRUE; 354 BOOL bounce_return_message = TRUE; 355 BOOL check_rfc2047_length = TRUE; 356 BOOL commandline_checks_require_admin = FALSE; 357 358 #ifdef EXPERIMENTAL_DCC 359 BOOL dcc_direct_add_header = FALSE; 360 #endif 361 BOOL debug_store = FALSE; 362 BOOL delivery_date_remove = TRUE; 363 BOOL deliver_drop_privilege = FALSE; 364 #ifdef ENABLE_DISABLE_FSYNC 365 BOOL disable_fsync = FALSE; 366 #endif 367 BOOL disable_ipv6 = FALSE; 368 BOOL dns_csa_use_reverse = TRUE; 369 BOOL drop_cr = FALSE; /* No longer used */ 370 371 BOOL envelope_to_remove = TRUE; 372 BOOL exim_gid_set = TRUE; /* This gid is always set */ 373 BOOL exim_uid_set = TRUE; /* This uid is always set */ 374 BOOL extract_addresses_remove_arguments = TRUE; 375 376 BOOL host_checking = FALSE; 377 BOOL host_lookup_deferred = FALSE; 378 BOOL host_lookup_failed = FALSE; 379 BOOL ignore_fromline_local = FALSE; 380 381 BOOL local_from_check = TRUE; 382 BOOL local_sender_retain = FALSE; 383 BOOL log_timezone = FALSE; 384 BOOL message_body_newlines = FALSE; 385 BOOL message_logs = TRUE; 386 #ifdef SUPPORT_I18N 387 BOOL message_smtputf8 = FALSE; 388 #endif 389 BOOL mua_wrapper = FALSE; 390 391 BOOL preserve_message_logs = FALSE; 392 BOOL print_topbitchars = FALSE; 393 BOOL prod_requires_admin = TRUE; 394 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) 395 BOOL proxy_session = FALSE; 396 #endif 397 398 #ifndef DISABLE_QUEUE_RAMP 399 BOOL queue_fast_ramp = FALSE; 400 #endif 401 BOOL queue_list_requires_admin = TRUE; 402 BOOL queue_only = FALSE; 403 BOOL queue_only_load_latch = TRUE; 404 BOOL queue_only_override = TRUE; 405 BOOL queue_run_in_order = FALSE; 406 BOOL recipients_max_reject = FALSE; 407 BOOL return_path_remove = TRUE; 408 409 BOOL smtp_batched_input = FALSE; 410 BOOL sender_helo_dnssec = FALSE; 411 BOOL sender_host_dnssec = FALSE; 412 BOOL smtp_accept_keepalive = TRUE; 413 BOOL smtp_check_spool_space = TRUE; 414 BOOL smtp_enforce_sync = TRUE; 415 BOOL smtp_etrn_serialize = TRUE; 416 BOOL smtp_input = FALSE; 417 BOOL smtp_return_error_details = FALSE; 418 #ifdef SUPPORT_SPF 419 BOOL spf_result_guessed = FALSE; 420 #endif 421 BOOL split_spool_directory = FALSE; 422 BOOL spool_wireformat = FALSE; 423 #ifdef EXPERIMENTAL_SRS_ALT 424 BOOL srs_usehash = TRUE; 425 BOOL srs_usetimestamp = TRUE; 426 #endif 427 BOOL strict_acl_vars = FALSE; 428 BOOL strip_excess_angle_brackets = FALSE; 429 BOOL strip_trailing_dot = FALSE; 430 BOOL syslog_duplication = TRUE; 431 BOOL syslog_pid = TRUE; 432 BOOL syslog_timestamp = TRUE; 433 BOOL system_filter_gid_set = FALSE; 434 BOOL system_filter_uid_set = FALSE; 435 436 BOOL tcp_nodelay = TRUE; 437 BOOL write_rejectlog = TRUE; 438 439 /******************************************************************************/ 440 441 header_line *acl_added_headers = NULL; 442 tree_node *acl_anchor = NULL; 443 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL, 444 NULL, NULL, NULL, NULL}; 445 int acl_narg = 0; 446 447 int acl_level = 0; 448 449 uschar *acl_not_smtp = NULL; 450 #ifdef WITH_CONTENT_SCAN 451 uschar *acl_not_smtp_mime = NULL; 452 #endif 453 uschar *acl_not_smtp_start = NULL; 454 uschar *acl_removed_headers = NULL; 455 uschar *acl_smtp_auth = NULL; 456 uschar *acl_smtp_connect = NULL; 457 uschar *acl_smtp_data = NULL; 458 #ifndef DISABLE_PRDR 459 uschar *acl_smtp_data_prdr = US"accept"; 460 #endif 461 #ifndef DISABLE_DKIM 462 uschar *acl_smtp_dkim = NULL; 463 #endif 464 uschar *acl_smtp_etrn = NULL; 465 uschar *acl_smtp_expn = NULL; 466 uschar *acl_smtp_helo = NULL; 467 uschar *acl_smtp_mail = NULL; 468 uschar *acl_smtp_mailauth = NULL; 469 #ifdef WITH_CONTENT_SCAN 470 uschar *acl_smtp_mime = NULL; 471 #endif 472 uschar *acl_smtp_notquit = NULL; 473 uschar *acl_smtp_predata = NULL; 474 uschar *acl_smtp_quit = NULL; 475 uschar *acl_smtp_rcpt = NULL; 476 uschar *acl_smtp_starttls = NULL; 477 uschar *acl_smtp_vrfy = NULL; 478 479 tree_node *acl_var_c = NULL; 480 tree_node *acl_var_m = NULL; 481 uschar *acl_verify_message = NULL; 482 string_item *acl_warn_logged = NULL; 483 484 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP 485 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */ 486 487 uschar *acl_wherenames[] = { US"RCPT", 488 US"MAIL", 489 US"PREDATA", 490 US"MIME", 491 US"DKIM", 492 US"DATA", 493 #ifndef DISABLE_PRDR 494 US"PRDR", 495 #endif 496 US"non-SMTP", 497 US"AUTH", 498 US"connection", 499 US"ETRN", 500 US"EXPN", 501 US"EHLO or HELO", 502 US"MAILAUTH", 503 US"non-SMTP-start", 504 US"NOTQUIT", 505 US"QUIT", 506 US"STARTTLS", 507 US"VRFY", 508 US"delivery", 509 US"unknown" 510 }; 511 512 uschar *acl_wherecodes[] = { US"550", /* RCPT */ 513 US"550", /* MAIL */ 514 US"550", /* PREDATA */ 515 US"550", /* MIME */ 516 US"550", /* DKIM */ 517 US"550", /* DATA */ 518 #ifndef DISABLE_PRDR 519 US"550", /* RCPT PRDR */ 520 #endif 521 US"0", /* not SMTP; not relevant */ 522 US"503", /* AUTH */ 523 US"550", /* connect */ 524 US"458", /* ETRN */ 525 US"550", /* EXPN */ 526 US"550", /* HELO/EHLO */ 527 US"0", /* MAILAUTH; not relevant */ 528 US"0", /* not SMTP; not relevant */ 529 US"0", /* NOTQUIT; not relevant */ 530 US"0", /* QUIT; not relevant */ 531 US"550", /* STARTTLS */ 532 US"252", /* VRFY */ 533 US"0", /* delivery; not relevant */ 534 US"0" /* unknown; not relevant */ 535 }; 536 537 uschar *add_environment = NULL; 538 address_item *addr_duplicate = NULL; 539 540 address_item address_defaults = { 541 .next = NULL, 542 .parent = NULL, 543 .first = NULL, 544 .dupof = NULL, 545 .start_router = NULL, 546 .router = NULL, 547 .transport = NULL, 548 .host_list = NULL, 549 .host_used = NULL, 550 .fallback_hosts = NULL, 551 .reply = NULL, 552 .retries = NULL, 553 .address = NULL, 554 .unique = NULL, 555 .cc_local_part = NULL, 556 .lc_local_part = NULL, 557 .local_part = NULL, 558 .prefix = NULL, 559 .prefix_v = NULL, 560 .suffix = NULL, 561 .suffix_v = NULL, 562 .domain = NULL, 563 .address_retry_key = NULL, 564 .domain_retry_key = NULL, 565 .current_dir = NULL, 566 .home_dir = NULL, 567 .message = NULL, 568 .user_message = NULL, 569 .onetime_parent = NULL, 570 .pipe_expandn = NULL, 571 .return_filename = NULL, 572 .self_hostname = NULL, 573 .shadow_message = NULL, 574 #ifndef DISABLE_TLS 575 .cipher = NULL, 576 .ourcert = NULL, 577 .peercert = NULL, 578 .peerdn = NULL, 579 .ocsp = OCSP_NOT_REQ, 580 #endif 581 #ifdef EXPERIMENTAL_DSN_INFO 582 .smtp_greeting = NULL, 583 .helo_response = NULL, 584 #endif 585 .authenticator = NULL, 586 .auth_id = NULL, 587 .auth_sndr = NULL, 588 .dsn_orcpt = NULL, 589 .dsn_flags = 0, 590 .dsn_aware = 0, 591 .uid = (uid_t)(-1), 592 .gid = (gid_t)(-1), 593 .flags = { 0 }, 594 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */ 595 .localpart_cache = { 0 }, /* localpart_cache - ditto */ 596 .mode = -1, 597 .more_errno = 0, 598 .delivery_time = {.tv_sec = 0, .tv_usec = 0}, 599 .basic_errno = ERRNO_UNKNOWNERROR, 600 .child_count = 0, 601 .return_file = -1, 602 .special_action = SPECIAL_NONE, 603 .transport_return = DEFER, 604 .prop = { /* fields that are propagated to children */ 605 .address_data = NULL, 606 .domain_data = NULL, 607 .localpart_data = NULL, 608 .errors_address = NULL, 609 .extra_headers = NULL, 610 .remove_headers = NULL, 611 .variables = NULL, 612 #ifdef EXPERIMENTAL_SRS_ALT 613 .srs_sender = NULL, 614 #endif 615 .ignore_error = FALSE, 616 #ifdef SUPPORT_I18N 617 .utf8_msg = FALSE, 618 .utf8_downcvt = FALSE, 619 .utf8_downcvt_maybe = FALSE 620 #endif 621 } 622 }; 623 624 uschar *address_file = NULL; 625 uschar *address_pipe = NULL; 626 tree_node *addresslist_anchor = NULL; 627 int addresslist_count = 0; 628 gid_t *admin_groups = NULL; 629 630 #ifdef EXPERIMENTAL_ARC 631 struct arc_set *arc_received = NULL; 632 int arc_received_instance = 0; 633 int arc_oldest_pass = 0; 634 const uschar *arc_state = NULL; 635 const uschar *arc_state_reason = NULL; 636 #endif 637 638 uschar *authenticated_fail_id = NULL; 639 uschar *authenticated_id = NULL; 640 uschar *authenticated_sender = NULL; 641 auth_instance *auths = NULL; 642 uschar *auth_advertise_hosts = US"*"; 643 auth_instance auth_defaults = { 644 .next = NULL, 645 .name = NULL, 646 .info = NULL, 647 .options_block = NULL, 648 .driver_name = NULL, 649 .advertise_condition = NULL, 650 .client_condition = NULL, 651 .public_name = NULL, 652 .set_id = NULL, 653 .set_client_id = NULL, 654 .mail_auth_condition = NULL, 655 .server_debug_string = NULL, 656 .server_condition = NULL, 657 .client = FALSE, 658 .server = FALSE, 659 .advertised = FALSE 660 }; 661 662 uschar *auth_defer_msg = US"reason not recorded"; 663 uschar *auth_defer_user_msg = US""; 664 uschar *auth_vars[AUTH_VARS]; 665 int auto_thaw = 0; 666 #ifdef WITH_CONTENT_SCAN 667 int av_failed = FALSE; /* boolean but accessed as vtype_int*/ 668 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */ 669 #endif 670 671 #if BASE_62 == 62 672 uschar *base62_chars= 673 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; 674 #else 675 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; 676 #endif 677 678 uschar *bi_command = NULL; 679 uschar *big_buffer = NULL; 680 int big_buffer_size = BIG_BUFFER_SIZE; 681 #ifdef EXPERIMENTAL_BRIGHTMAIL 682 uschar *bmi_alt_location = NULL; 683 uschar *bmi_base64_tracker_verdict = NULL; 684 uschar *bmi_base64_verdict = NULL; 685 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg"; 686 int bmi_deliver = 1; 687 int bmi_run = 0; 688 uschar *bmi_verdicts = NULL; 689 #endif 690 int bsmtp_transaction_linecount = 0; 691 int body_8bitmime = 0; 692 int body_linecount = 0; 693 int body_zerocount = 0; 694 uschar *bounce_message_file = NULL; 695 uschar *bounce_message_text = NULL; 696 uschar *bounce_recipient = NULL; 697 int bounce_return_linesize_limit = 998; 698 int bounce_return_size_limit = 100*1024; 699 uschar *bounce_sender_authentication = NULL; 700 701 uschar *callout_address = NULL; 702 int callout_cache_domain_positive_expire = 7*24*60*60; 703 int callout_cache_domain_negative_expire = 3*60*60; 704 int callout_cache_positive_expire = 24*60*60; 705 int callout_cache_negative_expire = 2*60*60; 706 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing"; 707 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$"; 708 int check_log_inodes = 100; 709 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */ 710 int check_spool_inodes = 100; 711 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */ 712 713 uschar *chunking_advertise_hosts = US"*"; 714 unsigned chunking_datasize = 0; 715 unsigned chunking_data_left = 0; 716 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED; 717 const pcre *regex_CHUNKING = NULL; 718 719 #ifdef EXPERIMENTAL_ESMTP_LIMITS 720 const pcre *regex_LIMITS = NULL; 721 #endif 722 723 uschar *client_authenticator = NULL; 724 uschar *client_authenticated_id = NULL; 725 uschar *client_authenticated_sender = NULL; 726 int clmacro_count = 0; 727 uschar *clmacros[MAX_CLMACROS]; 728 FILE *config_file = NULL; 729 const uschar *config_filename = NULL; 730 int config_lineno = 0; 731 #ifdef CONFIGURE_GROUP 732 gid_t config_gid = CONFIGURE_GROUP; 733 #else 734 gid_t config_gid = 0; 735 #endif 736 uschar *config_main_filelist = US CONFIGURE_FILE 737 "\0<-----------Space to patch configure_filename->"; 738 uschar *config_main_filename = NULL; 739 uschar *config_main_directory = NULL; 740 741 #ifdef CONFIGURE_OWNER 742 uid_t config_uid = CONFIGURE_OWNER; 743 #else 744 uid_t config_uid = 0; 745 #endif 746 747 int connection_max_messages= -1; 748 uschar *continue_proxy_cipher = NULL; 749 BOOL continue_proxy_dane = FALSE; 750 uschar *continue_proxy_sni = NULL; 751 uschar *continue_hostname = NULL; 752 uschar *continue_host_address = NULL; 753 int continue_sequence = 1; 754 uschar *continue_transport = NULL; 755 #ifdef EXPERIMENTAL_ESMTP_LIMITS 756 unsigned continue_limit_mail = 0; 757 unsigned continue_limit_rcpt = 0; 758 unsigned continue_limit_rcptdom= 0; 759 #endif 760 761 uschar *csa_status = NULL; 762 cut_t cutthrough = { 763 .callout_hold_only = FALSE, /* verify-only: normal delivery */ 764 .delivery = FALSE, /* when to attempt */ 765 .defer_pass = FALSE, /* on defer: spool locally */ 766 .is_tls = FALSE, /* not a TLS conn yet */ 767 .cctx = {.sock = -1}, /* open connection */ 768 .nrcpt = 0, /* number of addresses */ 769 }; 770 771 int daemon_notifier_fd = -1; 772 uschar *daemon_smtp_port = US"smtp"; 773 int daemon_startup_retries = 9; 774 int daemon_startup_sleep = 30; 775 776 #ifdef EXPERIMENTAL_DCC 777 uschar *dcc_header = NULL; 778 uschar *dcc_result = NULL; 779 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd"; 780 uschar *dccifd_options = US"header"; 781 #endif 782 783 int debug_fd = -1; 784 FILE *debug_file = NULL; 785 int debug_notall[] = { 786 Di_memory, 787 Di_noutf8, 788 -1 789 }; 790 bit_table debug_options[] = { /* must be in alphabetical order and use 791 only the enum values from macro.h */ 792 BIT_TABLE(D, acl), 793 BIT_TABLE(D, all), 794 BIT_TABLE(D, auth), 795 BIT_TABLE(D, deliver), 796 BIT_TABLE(D, dns), 797 BIT_TABLE(D, dnsbl), 798 BIT_TABLE(D, exec), 799 BIT_TABLE(D, expand), 800 BIT_TABLE(D, filter), 801 BIT_TABLE(D, hints_lookup), 802 BIT_TABLE(D, host_lookup), 803 BIT_TABLE(D, ident), 804 BIT_TABLE(D, interface), 805 BIT_TABLE(D, lists), 806 BIT_TABLE(D, load), 807 BIT_TABLE(D, local_scan), 808 BIT_TABLE(D, lookup), 809 BIT_TABLE(D, memory), 810 BIT_TABLE(D, noutf8), 811 BIT_TABLE(D, pid), 812 BIT_TABLE(D, process_info), 813 BIT_TABLE(D, queue_run), 814 BIT_TABLE(D, receive), 815 BIT_TABLE(D, resolver), 816 BIT_TABLE(D, retry), 817 BIT_TABLE(D, rewrite), 818 BIT_TABLE(D, route), 819 BIT_TABLE(D, timestamp), 820 BIT_TABLE(D, tls), 821 BIT_TABLE(D, transport), 822 BIT_TABLE(D, uid), 823 BIT_TABLE(D, verify), 824 }; 825 int debug_options_count = nelem(debug_options); 826 827 unsigned int debug_selector = 0; 828 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 }; 829 uschar *delay_warning_condition= 830 US"${if or {" 831 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }" 832 "{ match{$h_precedence:}{(?i)bulk|list|junk} }" 833 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }" 834 "} {no}{yes}}"; 835 uschar *deliver_address_data = NULL; 836 int deliver_datafile = -1; 837 const uschar *deliver_domain = NULL; 838 uschar *deliver_domain_data = NULL; 839 const uschar *deliver_domain_orig = NULL; 840 const uschar *deliver_domain_parent = NULL; 841 time_t deliver_frozen_at = 0; 842 uschar *deliver_home = NULL; 843 const uschar *deliver_host = NULL; 844 const uschar *deliver_host_address = NULL; 845 int deliver_host_port = 0; 846 uschar *deliver_in_buffer = NULL; 847 ino_t deliver_inode = 0; 848 uschar *deliver_localpart = NULL; 849 uschar *deliver_localpart_data = NULL; 850 uschar *deliver_localpart_orig = NULL; 851 uschar *deliver_localpart_parent = NULL; 852 uschar *deliver_localpart_prefix = NULL; 853 uschar *deliver_localpart_prefix_v = NULL; 854 uschar *deliver_localpart_suffix = NULL; 855 uschar *deliver_localpart_suffix_v = NULL; 856 uschar *deliver_out_buffer = NULL; 857 int deliver_queue_load_max = -1; 858 address_item *deliver_recipients = NULL; 859 uschar *deliver_selectstring = NULL; 860 uschar *deliver_selectstring_sender = NULL; 861 862 #ifndef DISABLE_DKIM 863 unsigned dkim_collect_input = 0; 864 uschar *dkim_cur_signer = NULL; 865 int dkim_key_length = 0; 866 void *dkim_signatures = NULL; 867 uschar *dkim_signers = NULL; 868 uschar *dkim_signing_domain = NULL; 869 uschar *dkim_signing_selector = NULL; 870 uschar *dkim_verify_hashes = US"sha256:sha512"; 871 uschar *dkim_verify_keytypes = US"ed25519:rsa"; 872 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250"; 873 BOOL dkim_verify_minimal = FALSE; 874 uschar *dkim_verify_overall = NULL; 875 uschar *dkim_verify_signers = US"$dkim_signers"; 876 uschar *dkim_verify_status = NULL; 877 uschar *dkim_verify_reason = NULL; 878 #endif 879 #ifdef SUPPORT_DMARC 880 uschar *dmarc_domain_policy = NULL; 881 uschar *dmarc_forensic_sender = NULL; 882 uschar *dmarc_history_file = NULL; 883 uschar *dmarc_status = NULL; 884 uschar *dmarc_status_text = NULL; 885 uschar *dmarc_tld_file = NULL; 886 uschar *dmarc_used_domain = NULL; 887 #endif 888 889 uschar *dns_again_means_nonexist = NULL; 890 int dns_csa_search_limit = 5; 891 int dns_cname_loops = 1; 892 #ifdef SUPPORT_DANE 893 int dns_dane_ok = -1; 894 #endif 895 uschar *dns_ipv4_lookup = NULL; 896 int dns_retrans = 0; 897 int dns_retry = 0; 898 int dns_dnssec_ok = -1; /* <0 = not coerced */ 899 uschar *dns_trust_aa = NULL; 900 int dns_use_edns0 = -1; /* <0 = not coerced */ 901 uschar *dnslist_domain = NULL; 902 uschar *dnslist_matched = NULL; 903 uschar *dnslist_text = NULL; 904 uschar *dnslist_value = NULL; 905 tree_node *domainlist_anchor = NULL; 906 int domainlist_count = 0; 907 uschar *dsn_from = US DEFAULT_DSN_FROM; 908 909 int errno_quota = ERRNO_QUOTA; 910 uschar *errors_copy = NULL; 911 int error_handling = ERRORS_SENDER; 912 uschar *errors_reply_to = NULL; 913 int errors_sender_rc = EXIT_FAILURE; 914 #ifndef DISABLE_EVENT 915 uschar *event_action = NULL; /* expansion for delivery events */ 916 uschar *event_data = NULL; /* auxiliary data variable for event */ 917 int event_defer_errno = 0; 918 const uschar *event_name = NULL; /* event name variable */ 919 #endif 920 921 922 gid_t exim_gid = EXIM_GID; 923 uschar *exim_path = US BIN_DIRECTORY "/exim" 924 "\0<---------------Space to patch exim_path->"; 925 uid_t exim_uid = EXIM_UID; 926 int expand_level = 0; /* Nesting depth, indent for debug */ 927 int expand_forbid = 0; 928 int expand_nlength[EXPAND_MAXN+1]; 929 int expand_nmax = -1; 930 uschar *expand_nstring[EXPAND_MAXN+1]; 931 uschar *expand_string_message; 932 uschar *extra_local_interfaces = NULL; 933 934 int fake_response = OK; 935 uschar *fake_response_text = US"Your message has been rejected but is " 936 "being kept for evaluation.\nIf it was a " 937 "legitimate message, it may still be " 938 "delivered to the target recipient(s)."; 939 int filter_n[FILTER_VARIABLE_COUNT]; 940 int filter_sn[FILTER_VARIABLE_COUNT]; 941 int filter_test = FTEST_NONE; 942 uschar *filter_test_sfile = NULL; 943 uschar *filter_test_ufile = NULL; 944 uschar *filter_thisaddress = NULL; 945 int finduser_retries = 0; 946 uid_t fixed_never_users[] = { FIXED_NEVER_USERS }; 947 uschar *freeze_tell = NULL; 948 uschar *freeze_tell_config = NULL; 949 uschar *fudged_queue_times = US""; 950 951 uschar *gecos_name = NULL; 952 uschar *gecos_pattern = NULL; 953 rewrite_rule *global_rewrite_rules = NULL; 954 955 volatile sig_atomic_t had_command_timeout = 0; 956 volatile sig_atomic_t had_command_sigterm = 0; 957 volatile sig_atomic_t had_data_timeout = 0; 958 volatile sig_atomic_t had_data_sigint = 0; 959 uschar *headers_charset = US HEADERS_CHARSET; 960 int header_insert_maxlen = 64 * 1024; 961 header_line *header_last = NULL; 962 header_line *header_list = NULL; 963 int header_maxsize = HEADER_MAXSIZE; 964 int header_line_maxsize = 0; 965 966 header_name header_names[] = { 967 /* name len allow_resent htype */ 968 { US"bcc", 3, TRUE, htype_bcc }, 969 { US"cc", 2, TRUE, htype_cc }, 970 { US"date", 4, TRUE, htype_date }, 971 { US"delivery-date", 13, FALSE, htype_delivery_date }, 972 { US"envelope-to", 11, FALSE, htype_envelope_to }, 973 { US"from", 4, TRUE, htype_from }, 974 { US"message-id", 10, TRUE, htype_id }, 975 { US"received", 8, FALSE, htype_received }, 976 { US"reply-to", 8, FALSE, htype_reply_to }, 977 { US"return-path", 11, FALSE, htype_return_path }, 978 { US"sender", 6, TRUE, htype_sender }, 979 { US"subject", 7, FALSE, htype_subject }, 980 { US"to", 2, TRUE, htype_to } 981 }; 982 983 int header_names_size = nelem(header_names); 984 985 uschar *helo_accept_junk_hosts = NULL; 986 uschar *helo_allow_chars = US""; 987 uschar *helo_lookup_domains = US"@ : @[]"; 988 uschar *helo_try_verify_hosts = NULL; 989 uschar *helo_verify_hosts = NULL; 990 const uschar *hex_digits = CUS"0123456789abcdef"; 991 uschar *hold_domains = NULL; 992 uschar *host_data = NULL; 993 uschar *host_lookup = NULL; 994 uschar *host_lookup_order = US"bydns:byaddr"; 995 uschar *host_lookup_msg = US""; 996 int host_number = 0; 997 uschar *host_number_string = NULL; 998 uschar *host_reject_connection = NULL; 999 tree_node *hostlist_anchor = NULL; 1000 int hostlist_count = 0; 1001 uschar *hosts_treat_as_local = NULL; 1002 uschar *hosts_require_helo = US"*"; 1003 uschar *hosts_connection_nolog = NULL; 1004 1005 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */ 1006 uschar *ignore_fromline_hosts = NULL; 1007 int inetd_wait_timeout = -1; 1008 uschar *initial_cwd = NULL; 1009 uschar *interface_address = NULL; 1010 int interface_port = -1; 1011 uschar *iterate_item = NULL; 1012 1013 int journal_fd = -1; 1014 1015 uschar *keep_environment = NULL; 1016 1017 int keep_malformed = 4*24*60*60; /* 4 days */ 1018 1019 uschar *eldap_dn = NULL; 1020 #ifdef EXPERIMENTAL_ESMTP_LIMITS 1021 uschar *limits_advertise_hosts = US"*"; 1022 #endif 1023 int load_average = -2; 1024 uschar *local_from_prefix = NULL; 1025 uschar *local_from_suffix = NULL; 1026 1027 #if HAVE_IPV6 1028 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0"; 1029 #else 1030 uschar *local_interfaces = US"0.0.0.0"; 1031 #endif 1032 1033 #ifdef HAVE_LOCAL_SCAN 1034 uschar *local_scan_data = NULL; 1035 int local_scan_timeout = 5*60; 1036 #endif 1037 gid_t local_user_gid = (gid_t)(-1); 1038 uid_t local_user_uid = (uid_t)(-1); 1039 1040 tree_node *localpartlist_anchor= NULL; 1041 int localpartlist_count = 0; 1042 uschar *log_buffer = NULL; 1043 1044 int log_default[] = { /* for initializing log_selector */ 1045 Li_acl_warn_skipped, 1046 Li_connection_reject, 1047 Li_delay_delivery, 1048 Li_dkim, 1049 Li_dnslist_defer, 1050 Li_etrn, 1051 Li_host_lookup_failed, 1052 Li_lost_incoming_connection, 1053 Li_outgoing_interface, /* see d_log_interface in deliver.c */ 1054 Li_msg_id, 1055 Li_queue_run, 1056 Li_queue_time_exclusive, 1057 Li_rejected_header, 1058 Li_retry_defer, 1059 Li_sender_verify_fail, 1060 Li_size_reject, 1061 Li_skip_delivery, 1062 Li_smtp_confirmation, 1063 #ifdef ALLOW_INSECURE_TAINTED_DATA 1064 Li_tainted, 1065 #endif 1066 Li_tls_certificate_verified, 1067 Li_tls_cipher, 1068 -1 1069 }; 1070 1071 uschar *log_file_path = US LOG_FILE_PATH 1072 "\0<--------------Space to patch log_file_path->"; 1073 1074 int log_notall[] = { 1075 -1 1076 }; 1077 bit_table log_options[] = { /* must be in alphabetical order, 1078 with definitions from enum logbit. */ 1079 BIT_TABLE(L, 8bitmime), 1080 BIT_TABLE(L, acl_warn_skipped), 1081 BIT_TABLE(L, address_rewrite), 1082 BIT_TABLE(L, all), 1083 BIT_TABLE(L, all_parents), 1084 BIT_TABLE(L, arguments), 1085 BIT_TABLE(L, connection_reject), 1086 BIT_TABLE(L, delay_delivery), 1087 BIT_TABLE(L, deliver_time), 1088 BIT_TABLE(L, delivery_size), 1089 #ifndef DISABLE_DKIM 1090 BIT_TABLE(L, dkim), 1091 BIT_TABLE(L, dkim_verbose), 1092 #endif 1093 BIT_TABLE(L, dnslist_defer), 1094 BIT_TABLE(L, dnssec), 1095 BIT_TABLE(L, etrn), 1096 BIT_TABLE(L, host_lookup_failed), 1097 BIT_TABLE(L, ident_timeout), 1098 BIT_TABLE(L, incoming_interface), 1099 BIT_TABLE(L, incoming_port), 1100 BIT_TABLE(L, lost_incoming_connection), 1101 BIT_TABLE(L, millisec), 1102 BIT_TABLE(L, msg_id), 1103 BIT_TABLE(L, msg_id_created), 1104 BIT_TABLE(L, outgoing_interface), 1105 BIT_TABLE(L, outgoing_port), 1106 BIT_TABLE(L, pid), 1107 BIT_TABLE(L, pipelining), 1108 BIT_TABLE(L, protocol_detail), 1109 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) 1110 BIT_TABLE(L, proxy), 1111 #endif 1112 BIT_TABLE(L, queue_run), 1113 BIT_TABLE(L, queue_time), 1114 BIT_TABLE(L, queue_time_exclusive), 1115 BIT_TABLE(L, queue_time_overall), 1116 BIT_TABLE(L, receive_time), 1117 BIT_TABLE(L, received_recipients), 1118 BIT_TABLE(L, received_sender), 1119 BIT_TABLE(L, rejected_header), 1120 { US"rejected_headers", Li_rejected_header }, 1121 BIT_TABLE(L, retry_defer), 1122 BIT_TABLE(L, return_path_on_delivery), 1123 BIT_TABLE(L, sender_on_delivery), 1124 BIT_TABLE(L, sender_verify_fail), 1125 BIT_TABLE(L, size_reject), 1126 BIT_TABLE(L, skip_delivery), 1127 BIT_TABLE(L, smtp_confirmation), 1128 BIT_TABLE(L, smtp_connection), 1129 BIT_TABLE(L, smtp_incomplete_transaction), 1130 BIT_TABLE(L, smtp_mailauth), 1131 BIT_TABLE(L, smtp_no_mail), 1132 BIT_TABLE(L, smtp_protocol_error), 1133 BIT_TABLE(L, smtp_syntax_error), 1134 BIT_TABLE(L, subject), 1135 #ifdef ALLOW_INSECURE_TAINTED_DATA 1136 BIT_TABLE(L, tainted), 1137 #endif 1138 BIT_TABLE(L, tls_certificate_verified), 1139 BIT_TABLE(L, tls_cipher), 1140 BIT_TABLE(L, tls_peerdn), 1141 BIT_TABLE(L, tls_resumption), 1142 BIT_TABLE(L, tls_sni), 1143 BIT_TABLE(L, unknown_in_list), 1144 }; 1145 int log_options_count = nelem(log_options); 1146 1147 int log_reject_target = 0; 1148 unsigned int log_selector[log_selector_size]; /* initialized in main() */ 1149 uschar *log_selector_string = NULL; 1150 FILE *log_stderr = NULL; 1151 uschar *login_sender_address = NULL; 1152 uschar *lookup_dnssec_authenticated = NULL; 1153 int lookup_open_max = 25; 1154 uschar *lookup_value = NULL; 1155 1156 macro_item *macros_user = NULL; 1157 uschar *mailstore_basename = NULL; 1158 #ifdef WITH_CONTENT_SCAN 1159 uschar *malware_name = NULL; /* Virus Name */ 1160 #endif 1161 int max_received_linelength= 0; 1162 int max_username_length = 0; 1163 int message_age = 0; 1164 uschar *message_body = NULL; 1165 uschar *message_body_end = NULL; 1166 int message_body_size = 0; 1167 int message_body_visible = 500; 1168 int message_ended = END_NOTSTARTED; 1169 uschar *message_headers = NULL; 1170 uschar *message_id; 1171 uschar *message_id_domain = NULL; 1172 uschar *message_id_text = NULL; 1173 struct timeval message_id_tv = { 0, 0 }; 1174 uschar message_id_option[MESSAGE_ID_LENGTH + 3]; 1175 uschar *message_id_external; 1176 int message_linecount = 0; 1177 int message_size = 0; 1178 uschar *message_size_limit = US"50M"; 1179 #ifdef SUPPORT_I18N 1180 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */ 1181 #endif 1182 uschar message_subdir[2] = { 0, 0 }; 1183 uschar *message_reference = NULL; 1184 1185 /* MIME ACL expandables */ 1186 #ifdef WITH_CONTENT_SCAN 1187 int mime_anomaly_level = 0; 1188 const uschar *mime_anomaly_text = NULL; 1189 uschar *mime_boundary = NULL; 1190 uschar *mime_charset = NULL; 1191 uschar *mime_content_description = NULL; 1192 uschar *mime_content_disposition = NULL; 1193 uschar *mime_content_id = NULL; 1194 unsigned int mime_content_size = 0; 1195 uschar *mime_content_transfer_encoding = NULL; 1196 uschar *mime_content_type = NULL; 1197 uschar *mime_decoded_filename = NULL; 1198 uschar *mime_filename = NULL; 1199 int mime_is_multipart = 0; 1200 int mime_is_coverletter = 0; 1201 int mime_is_rfc822 = 0; 1202 int mime_part_count = -1; 1203 #endif 1204 1205 uid_t *never_users = NULL; 1206 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ; 1207 1208 const int on = 1; /* for setsockopt */ 1209 const int off = 0; 1210 1211 uid_t original_euid; 1212 gid_t originator_gid; 1213 uschar *originator_login = NULL; 1214 uschar *originator_name = NULL; 1215 uid_t originator_uid; 1216 uschar *override_local_interfaces = NULL; 1217 uschar *override_pid_file_path = NULL; 1218 1219 uschar *percent_hack_domains = NULL; 1220 uschar *pid_file_path = US PID_FILE_PATH 1221 "\0<--------------Space to patch pid_file_path->"; 1222 #ifndef DISABLE_PIPE_CONNECT 1223 uschar *pipe_connect_advertise_hosts = US"*"; 1224 #endif 1225 uschar *pipelining_advertise_hosts = US"*"; 1226 uschar *primary_hostname = NULL; 1227 uschar *process_info; 1228 int process_info_len = 0; 1229 uschar *process_log_path = NULL; 1230 const uschar *process_purpose = US"fresh-exec"; 1231 1232 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) 1233 uschar *hosts_proxy = NULL; 1234 uschar *proxy_external_address = NULL; 1235 int proxy_external_port = 0; 1236 uschar *proxy_local_address = NULL; 1237 int proxy_local_port = 0; 1238 int proxy_protocol_timeout = 3; 1239 #endif 1240 1241 uschar *prvscheck_address = NULL; 1242 uschar *prvscheck_keynum = NULL; 1243 uschar *prvscheck_result = NULL; 1244 1245 1246 const uschar *qualify_domain_recipient = NULL; 1247 uschar *qualify_domain_sender = NULL; 1248 uschar *queue_domains = NULL; 1249 int queue_interval = -1; 1250 uschar *queue_name = US""; 1251 uschar *queue_name_dest = NULL; 1252 uschar *queue_only_file = NULL; 1253 int queue_only_load = -1; 1254 uschar *queue_run_max = US"5"; 1255 pid_t queue_run_pid = (pid_t)0; 1256 int queue_run_pipe = -1; 1257 unsigned queue_size = 0; 1258 time_t queue_size_next = 0; 1259 uschar *queue_smtp_domains = NULL; 1260 1261 uint32_t random_seed = 0; 1262 tree_node *ratelimiters_cmd = NULL; 1263 tree_node *ratelimiters_conn = NULL; 1264 tree_node *ratelimiters_mail = NULL; 1265 uschar *raw_active_hostname = NULL; 1266 uschar *raw_sender = NULL; 1267 uschar **raw_recipients = NULL; 1268 int raw_recipients_count = 0; 1269 1270 int rcpt_count = 0; 1271 int rcpt_fail_count = 0; 1272 int rcpt_defer_count = 0; 1273 gid_t real_gid; 1274 uid_t real_uid; 1275 int receive_linecount = 0; 1276 int receive_messagecount = 0; 1277 int receive_timeout = 0; 1278 int received_count = 0; 1279 uschar *received_for = NULL; 1280 1281 /* This is the default text for Received headers generated by Exim. The 1282 date will be automatically added on the end. */ 1283 1284 uschar *received_header_text = US 1285 "Received: " 1286 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}" 1287 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}" 1288 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}" 1289 "by $primary_hostname " 1290 "${if def:received_protocol {with $received_protocol }}" 1291 #ifndef DISABLE_TLS 1292 "${if def:tls_in_ver { ($tls_in_ver)}}" 1293 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}" 1294 #endif 1295 "(Exim $version_number)\n\t" 1296 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}" 1297 "id $message_exim_id" 1298 "${if def:received_for {\n\tfor $received_for}}" 1299 "\0<---------------Space to patch received_header_text->"; 1300 1301 int received_headers_max = 30; 1302 uschar *received_protocol = NULL; 1303 struct timeval received_time = { 0, 0 }; 1304 struct timeval received_time_complete = { 0, 0 }; 1305 uschar *recipient_data = NULL; 1306 uschar *recipient_unqualified_hosts = NULL; 1307 uschar *recipient_verify_failure = NULL; 1308 int recipients_count = 0; 1309 recipient_item *recipients_list = NULL; 1310 int recipients_list_max = 0; 1311 int recipients_max = 50000; 1312 const pcre *regex_AUTH = NULL; 1313 const pcre *regex_check_dns_names = NULL; 1314 const pcre *regex_From = NULL; 1315 const pcre *regex_IGNOREQUOTA = NULL; 1316 const pcre *regex_PIPELINING = NULL; 1317 const pcre *regex_SIZE = NULL; 1318 #ifndef DISABLE_PIPE_CONNECT 1319 const pcre *regex_EARLY_PIPE = NULL; 1320 #endif 1321 const pcre *regex_ismsgid = NULL; 1322 const pcre *regex_smtp_code = NULL; 1323 uschar *regex_vars[REGEX_VARS]; 1324 #ifdef WHITELIST_D_MACROS 1325 const pcre *regex_whitelisted_macro = NULL; 1326 #endif 1327 #ifdef WITH_CONTENT_SCAN 1328 uschar *regex_match_string = NULL; 1329 #endif 1330 int remote_delivery_count = 0; 1331 int remote_max_parallel = 2; 1332 uschar *remote_sort_domains = NULL; 1333 int retry_data_expire = 7*24*60*60; 1334 int retry_interval_max = 24*60*60; 1335 int retry_maximum_timeout = 0; /* set from retry config */ 1336 retry_config *retries = NULL; 1337 uschar *return_path = NULL; 1338 int rewrite_existflags = 0; 1339 uschar *rfc1413_hosts = US"@[]"; 1340 int rfc1413_query_timeout = 0; 1341 uid_t root_gid = ROOT_GID; 1342 uid_t root_uid = ROOT_UID; 1343 1344 router_instance *routers = NULL; 1345 router_instance router_defaults = { 1346 .next = NULL, 1347 .name = NULL, 1348 .info = NULL, 1349 .options_block = NULL, 1350 .driver_name = NULL, 1351 1352 .address_data = NULL, 1353 #ifdef EXPERIMENTAL_BRIGHTMAIL 1354 .bmi_rule = NULL, 1355 #endif 1356 .cannot_route_message = NULL, 1357 .condition = NULL, 1358 .current_directory = NULL, 1359 .debug_string = NULL, 1360 .domains = NULL, 1361 .errors_to = NULL, 1362 .expand_gid = NULL, 1363 .expand_uid = NULL, 1364 .expand_more = NULL, 1365 .expand_unseen = NULL, 1366 .extra_headers = NULL, 1367 .fallback_hosts = NULL, 1368 .home_directory = NULL, 1369 .ignore_target_hosts = NULL, 1370 .local_parts = NULL, 1371 .pass_router_name = NULL, 1372 .prefix = NULL, 1373 .redirect_router_name = NULL, 1374 .remove_headers = NULL, 1375 .require_files = NULL, 1376 .router_home_directory = NULL, 1377 .self = US"freeze", 1378 .senders = NULL, 1379 .suffix = NULL, 1380 .translate_ip_address = NULL, 1381 .transport_name = NULL, 1382 1383 .address_test = TRUE, 1384 #ifdef EXPERIMENTAL_BRIGHTMAIL 1385 .bmi_deliver_alternate = FALSE, 1386 .bmi_deliver_default = FALSE, 1387 .bmi_dont_deliver = FALSE, 1388 #endif 1389 .expn = TRUE, 1390 .caseful_local_part = FALSE, 1391 .check_local_user = FALSE, 1392 .disable_logging = FALSE, 1393 .fail_verify_recipient = FALSE, 1394 .fail_verify_sender = FALSE, 1395 .gid_set = FALSE, 1396 .initgroups = FALSE, 1397 .log_as_local = TRUE_UNSET, 1398 .more = TRUE, 1399 .pass_on_timeout = FALSE, 1400 .prefix_optional = FALSE, 1401 .repeat_use = TRUE, 1402 .retry_use_local_part = TRUE_UNSET, 1403 .same_domain_copy_routing = FALSE, 1404 .self_rewrite = FALSE, 1405 .set = NULL, 1406 .suffix_optional = FALSE, 1407 .verify_only = FALSE, 1408 .verify_recipient = TRUE, 1409 .verify_sender = TRUE, 1410 .uid_set = FALSE, 1411 .unseen = FALSE, 1412 .dsn_lasthop = FALSE, 1413 1414 .self_code = self_freeze, 1415 .uid = (uid_t)(-1), 1416 .gid = (gid_t)(-1), 1417 1418 .fallback_hostlist = NULL, 1419 .transport = NULL, 1420 .pass_router = NULL, 1421 .redirect_router = NULL, 1422 1423 .dnssec = { .request= US"*", .require=NULL }, 1424 }; 1425 1426 uschar *router_name = NULL; 1427 tree_node *router_var = NULL; 1428 1429 ip_address_item *running_interfaces = NULL; 1430 1431 /* This is a weird one. The following string gets patched in the binary by the 1432 script that sets up a copy of Exim for running in the test harness. It seems 1433 that compilers are now clever, and share constant strings if they can. 1434 Elsewhere in Exim the string "<" is used. The compiler optimization seems to 1435 make use of the end of this string in order to save space. So the patching then 1436 wrecks this. We defeat this optimization by adding some additional characters 1437 onto the end of the string. */ 1438 1439 uschar *running_status = US">>>running<<<" "\0EXTRA"; 1440 1441 int runrc = 0; 1442 1443 uschar *search_error_message = NULL; 1444 uschar *self_hostname = NULL; 1445 uschar *sender_address = NULL; 1446 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; 1447 uschar *sender_address_data = NULL; 1448 uschar *sender_address_unrewritten = NULL; 1449 uschar *sender_data = NULL; 1450 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; 1451 uschar *sender_fullhost = NULL; 1452 uschar *sender_helo_name = NULL; 1453 uschar **sender_host_aliases = &no_aliases; 1454 uschar *sender_host_address = NULL; 1455 uschar *sender_host_authenticated = NULL; 1456 uschar *sender_host_auth_pubname = NULL; 1457 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; 1458 uschar *sender_host_name = NULL; 1459 int sender_host_port = 0; 1460 uschar *sender_ident = NULL; 1461 uschar *sender_rate = NULL; 1462 uschar *sender_rate_limit = NULL; 1463 uschar *sender_rate_period = NULL; 1464 uschar *sender_rcvhost = NULL; 1465 uschar *sender_unqualified_hosts = NULL; 1466 uschar *sender_verify_failure = NULL; 1467 address_item *sender_verified_list = NULL; 1468 address_item *sender_verified_failed = NULL; 1469 int sender_verified_rc = -1; 1470 uschar *sending_ip_address = NULL; 1471 int sending_port = -1; 1472 SIGNAL_BOOL sigalrm_seen = FALSE; 1473 const uschar *sigalarm_setter = NULL; 1474 uschar **sighup_argv = NULL; 1475 int slow_lookup_log = 0; /* millisecs, zero disables */ 1476 int smtp_accept_count = 0; 1477 int smtp_accept_max = 20; 1478 int smtp_accept_max_nonmail= 10; 1479 uschar *smtp_accept_max_nonmail_hosts = US"*"; 1480 uschar *smtp_accept_max_per_connection = US"1000"; 1481 uschar *smtp_accept_max_per_host = NULL; 1482 int smtp_accept_queue = 0; 1483 int smtp_accept_queue_per_connection = 10; 1484 int smtp_accept_reserve = 0; 1485 uschar *smtp_active_hostname = NULL; 1486 int smtp_backlog_monitor = 0; 1487 uschar *smtp_banner = US"$smtp_active_hostname ESMTP " 1488 "Exim $version_number $tod_full" 1489 "\0<---------------Space to patch smtp_banner->"; 1490 int smtp_ch_index = 0; 1491 uschar *smtp_cmd_argument = NULL; 1492 uschar *smtp_cmd_buffer = NULL; 1493 struct timeval smtp_connection_start = {0,0}; 1494 uschar smtp_connection_had[SMTP_HBUFF_SIZE]; 1495 int smtp_connect_backlog = 20; 1496 double smtp_delay_mail = 0.0; 1497 double smtp_delay_rcpt = 0.0; 1498 FILE *smtp_in = NULL; 1499 int smtp_listen_backlog = 0; 1500 int smtp_load_reserve = -1; 1501 int smtp_mailcmd_count = 0; 1502 int smtp_mailcmd_max = -1; 1503 FILE *smtp_out = NULL; 1504 uschar *smtp_etrn_command = NULL; 1505 int smtp_max_synprot_errors= 3; 1506 int smtp_max_unknown_commands = 3; 1507 uschar *smtp_notquit_reason = NULL; 1508 unsigned smtp_peer_options = 0; 1509 unsigned smtp_peer_options_wrap= 0; 1510 uschar *smtp_ratelimit_hosts = NULL; 1511 uschar *smtp_ratelimit_mail = NULL; 1512 uschar *smtp_ratelimit_rcpt = NULL; 1513 uschar *smtp_read_error = US""; 1514 int smtp_receive_timeout = 5*60; 1515 uschar *smtp_receive_timeout_s = NULL; 1516 uschar *smtp_reserve_hosts = NULL; 1517 int smtp_rlm_base = 0; 1518 double smtp_rlm_factor = 0.0; 1519 int smtp_rlm_limit = 0; 1520 int smtp_rlm_threshold = INT_MAX; 1521 int smtp_rlr_base = 0; 1522 double smtp_rlr_factor = 0.0; 1523 int smtp_rlr_limit = 0; 1524 int smtp_rlr_threshold = INT_MAX; 1525 #ifdef SUPPORT_I18N 1526 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */ 1527 #endif 1528 1529 #ifdef WITH_CONTENT_SCAN 1530 uschar *spamd_address = US"127.0.0.1 783"; 1531 uschar *spam_bar = NULL; 1532 uschar *spam_report = NULL; 1533 uschar *spam_action = NULL; 1534 uschar *spam_score = NULL; 1535 uschar *spam_score_int = NULL; 1536 #endif 1537 #ifdef SUPPORT_SPF 1538 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all"; 1539 uschar *spf_header_comment = NULL; 1540 uschar *spf_received = NULL; 1541 uschar *spf_result = NULL; 1542 uschar *spf_smtp_comment = NULL; 1543 uschar *spf_smtp_comment_template 1544 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */ 1545 = US"Please%_see%_http://www.open-spf.org/Why"; 1546 1547 #endif 1548 1549 FILE *spool_data_file = NULL; 1550 uschar *spool_directory = US SPOOL_DIRECTORY 1551 "\0<--------------Space to patch spool_directory->"; 1552 #ifdef EXPERIMENTAL_SRS_ALT 1553 uschar *srs_config = NULL; 1554 uschar *srs_db_address = NULL; 1555 uschar *srs_db_key = NULL; 1556 int srs_hashlength = 6; 1557 int srs_hashmin = -1; 1558 int srs_maxage = 31; 1559 uschar *srs_orig_recipient = NULL; 1560 uschar *srs_orig_sender = NULL; 1561 uschar *srs_recipient = NULL; 1562 uschar *srs_secrets = NULL; 1563 uschar *srs_status = NULL; 1564 #endif 1565 #ifdef SUPPORT_SRS 1566 uschar *srs_recipient = NULL; 1567 #endif 1568 int string_datestamp_offset= -1; 1569 int string_datestamp_length= 0; 1570 int string_datestamp_type = -1; 1571 const uschar *submission_domain = NULL; 1572 const uschar *submission_name = NULL; 1573 int syslog_facility = LOG_MAIL; 1574 uschar *syslog_processname = US"exim"; 1575 uschar *system_filter = NULL; 1576 1577 uschar *system_filter_directory_transport = NULL; 1578 uschar *system_filter_file_transport = NULL; 1579 uschar *system_filter_pipe_transport = NULL; 1580 uschar *system_filter_reply_transport = NULL; 1581 1582 gid_t system_filter_gid = 0; 1583 uid_t system_filter_uid = (uid_t)-1; 1584 1585 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 }; 1586 tfo_state_t tcp_out_fastopen = TFO_NOT_USED; 1587 #ifdef USE_TCP_WRAPPERS 1588 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME; 1589 #endif 1590 int test_harness_load_avg = 0; 1591 int thismessage_size_limit = 0; 1592 int timeout_frozen_after = 0; 1593 #ifdef MEASURE_TIMING 1594 struct timeval timestamp_startup; 1595 #endif 1596 1597 transport_instance *transports = NULL; 1598 1599 transport_instance transport_defaults = { 1600 /* All non-mentioned elements zero/NULL/FALSE */ 1601 .batch_max = 1, 1602 .multi_domain = TRUE, 1603 .max_addresses = 100, 1604 .connection_max_messages = 500, 1605 .uid = (uid_t)(-1), 1606 .gid = (gid_t)(-1), 1607 .filter_timeout = 300, 1608 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither 1609 1 nor 0 so can detect unset */ 1610 }; 1611 1612 int transport_count; 1613 uschar *transport_name = NULL; 1614 int transport_newlines; 1615 const uschar **transport_filter_argv = NULL; 1616 int transport_filter_timeout; 1617 int transport_write_timeout= 0; 1618 1619 tree_node *tree_dns_fails = NULL; 1620 tree_node *tree_duplicates = NULL; 1621 tree_node *tree_nonrecipients = NULL; 1622 tree_node *tree_unusable = NULL; 1623 1624 gid_t *trusted_groups = NULL; 1625 uid_t *trusted_users = NULL; 1626 uschar *timezone_string = US TIMEZONE_DEFAULT; 1627 1628 uschar *unknown_login = NULL; 1629 uschar *unknown_username = NULL; 1630 uschar *untrusted_set_sender = NULL; 1631 1632 /* A regex for matching a "From_" line in an incoming message, in the form 1633 1634 From ph10 Fri Jan 5 12:35 GMT 1996 1635 1636 which the "mail" commands send to the MTA (undocumented, of course), or in 1637 the form 1638 1639 From ph10 Fri, 7 Jan 97 14:00:00 GMT 1640 1641 which is apparently used by some UUCPs, despite it not being in RFC 976. 1642 Because of variations in time formats, just match up to the minutes. That 1643 should be sufficient. Examples have been seen of time fields like 12:1:03, 1644 so just require one digit for hours and minutes. The weekday is also absent 1645 in some forms. */ 1646 1647 uschar *uucp_from_pattern = US 1648 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */ 1649 "(?:" /* Non-extracting bracket */ 1650 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */ 1651 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */ 1652 ")" /* End alternation */ 1653 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */ 1654 1655 uschar *uucp_from_sender = US"$1"; 1656 1657 uschar *verify_mode = NULL; 1658 uschar *version_copyright = 1659 US"Copyright (c) University of Cambridge, 1995 - 2018\n" 1660 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020"; 1661 uschar *version_date = US"?"; 1662 uschar *version_cnumber = US"????"; 1663 uschar *version_string = US"?"; 1664 1665 uschar *warn_message_file = NULL; 1666 int warning_count = 0; 1667 uschar *warnmsg_delay = NULL; 1668 uschar *warnmsg_recipients = NULL; 1669 1670 1671 /* End of globals.c */ 1672