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