Debug: provide for SIGALRM tracking
[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 Di_noutf8,
774 -1
775 };
776 bit_table debug_options[] = { /* must be in alphabetical order and use
777 only the enum values from macro.h */
778 BIT_TABLE(D, acl),
779 BIT_TABLE(D, all),
780 BIT_TABLE(D, auth),
781 BIT_TABLE(D, deliver),
782 BIT_TABLE(D, dns),
783 BIT_TABLE(D, dnsbl),
784 BIT_TABLE(D, exec),
785 BIT_TABLE(D, expand),
786 BIT_TABLE(D, filter),
787 BIT_TABLE(D, hints_lookup),
788 BIT_TABLE(D, host_lookup),
789 BIT_TABLE(D, ident),
790 BIT_TABLE(D, interface),
791 BIT_TABLE(D, lists),
792 BIT_TABLE(D, load),
793 BIT_TABLE(D, local_scan),
794 BIT_TABLE(D, lookup),
795 BIT_TABLE(D, memory),
796 BIT_TABLE(D, noutf8),
797 BIT_TABLE(D, pid),
798 BIT_TABLE(D, process_info),
799 BIT_TABLE(D, queue_run),
800 BIT_TABLE(D, receive),
801 BIT_TABLE(D, resolver),
802 BIT_TABLE(D, retry),
803 BIT_TABLE(D, rewrite),
804 BIT_TABLE(D, route),
805 BIT_TABLE(D, timestamp),
806 BIT_TABLE(D, tls),
807 BIT_TABLE(D, transport),
808 BIT_TABLE(D, uid),
809 BIT_TABLE(D, verify),
810 };
811 int debug_options_count = nelem(debug_options);
812
813 unsigned int debug_selector = 0;
814 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
815 uschar *delay_warning_condition=
816 US"${if or {"
817 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
818 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
819 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
820 "} {no}{yes}}";
821 uschar *deliver_address_data = NULL;
822 int deliver_datafile = -1;
823 const uschar *deliver_domain = NULL;
824 uschar *deliver_domain_data = NULL;
825 const uschar *deliver_domain_orig = NULL;
826 const uschar *deliver_domain_parent = NULL;
827 time_t deliver_frozen_at = 0;
828 uschar *deliver_home = NULL;
829 const uschar *deliver_host = NULL;
830 const uschar *deliver_host_address = NULL;
831 int deliver_host_port = 0;
832 uschar *deliver_in_buffer = NULL;
833 ino_t deliver_inode = 0;
834 uschar *deliver_localpart = NULL;
835 uschar *deliver_localpart_data = NULL;
836 uschar *deliver_localpart_orig = NULL;
837 uschar *deliver_localpart_parent = NULL;
838 uschar *deliver_localpart_prefix = NULL;
839 uschar *deliver_localpart_suffix = NULL;
840 uschar *deliver_out_buffer = NULL;
841 int deliver_queue_load_max = -1;
842 address_item *deliver_recipients = NULL;
843 uschar *deliver_selectstring = NULL;
844 uschar *deliver_selectstring_sender = NULL;
845
846 #ifndef DISABLE_DKIM
847 unsigned dkim_collect_input = 0;
848 uschar *dkim_cur_signer = NULL;
849 int dkim_key_length = 0;
850 void *dkim_signatures = NULL;
851 uschar *dkim_signers = NULL;
852 uschar *dkim_signing_domain = NULL;
853 uschar *dkim_signing_selector = NULL;
854 uschar *dkim_verify_overall = NULL;
855 uschar *dkim_verify_signers = US"$dkim_signers";
856 uschar *dkim_verify_status = NULL;
857 uschar *dkim_verify_reason = NULL;
858 #endif
859 #ifdef EXPERIMENTAL_DMARC
860 uschar *dmarc_domain_policy = NULL;
861 uschar *dmarc_forensic_sender = NULL;
862 uschar *dmarc_history_file = NULL;
863 uschar *dmarc_status = NULL;
864 uschar *dmarc_status_text = NULL;
865 uschar *dmarc_tld_file = NULL;
866 uschar *dmarc_used_domain = NULL;
867 #endif
868
869 uschar *dns_again_means_nonexist = NULL;
870 int dns_csa_search_limit = 5;
871 int dns_cname_loops = 1;
872 #ifdef SUPPORT_DANE
873 int dns_dane_ok = -1;
874 #endif
875 uschar *dns_ipv4_lookup = NULL;
876 int dns_retrans = 0;
877 int dns_retry = 0;
878 int dns_dnssec_ok = -1; /* <0 = not coerced */
879 uschar *dns_trust_aa = NULL;
880 int dns_use_edns0 = -1; /* <0 = not coerced */
881 uschar *dnslist_domain = NULL;
882 uschar *dnslist_matched = NULL;
883 uschar *dnslist_text = NULL;
884 uschar *dnslist_value = NULL;
885 tree_node *domainlist_anchor = NULL;
886 int domainlist_count = 0;
887 uschar *dsn_from = US DEFAULT_DSN_FROM;
888
889 int errno_quota = ERRNO_QUOTA;
890 uschar *errors_copy = NULL;
891 int error_handling = ERRORS_SENDER;
892 uschar *errors_reply_to = NULL;
893 int errors_sender_rc = EXIT_FAILURE;
894 #ifndef DISABLE_EVENT
895 uschar *event_action = NULL; /* expansion for delivery events */
896 uschar *event_data = NULL; /* auxiliary data variable for event */
897 int event_defer_errno = 0;
898 const uschar *event_name = NULL; /* event name variable */
899 #endif
900
901
902 gid_t exim_gid = EXIM_GID;
903 uschar *exim_path = US BIN_DIRECTORY "/exim"
904 "\0<---------------Space to patch exim_path->";
905 uid_t exim_uid = EXIM_UID;
906 int expand_level = 0; /* Nesting depth, indent for debug */
907 int expand_forbid = 0;
908 int expand_nlength[EXPAND_MAXN+1];
909 int expand_nmax = -1;
910 uschar *expand_nstring[EXPAND_MAXN+1];
911 uschar *expand_string_message;
912 uschar *extra_local_interfaces = NULL;
913
914 int fake_response = OK;
915 uschar *fake_response_text = US"Your message has been rejected but is "
916 "being kept for evaluation.\nIf it was a "
917 "legitimate message, it may still be "
918 "delivered to the target recipient(s).";
919 int filter_n[FILTER_VARIABLE_COUNT];
920 int filter_sn[FILTER_VARIABLE_COUNT];
921 int filter_test = FTEST_NONE;
922 uschar *filter_test_sfile = NULL;
923 uschar *filter_test_ufile = NULL;
924 uschar *filter_thisaddress = NULL;
925 int finduser_retries = 0;
926 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
927 uschar *freeze_tell = NULL;
928 uschar *freeze_tell_config = NULL;
929 uschar *fudged_queue_times = US"";
930
931 uschar *gecos_name = NULL;
932 uschar *gecos_pattern = NULL;
933 rewrite_rule *global_rewrite_rules = NULL;
934
935 volatile sig_atomic_t had_command_timeout = 0;
936 volatile sig_atomic_t had_command_sigterm = 0;
937 volatile sig_atomic_t had_data_timeout = 0;
938 volatile sig_atomic_t had_data_sigint = 0;
939 uschar *headers_charset = US HEADERS_CHARSET;
940 int header_insert_maxlen = 64 * 1024;
941 header_line *header_last = NULL;
942 header_line *header_list = NULL;
943 int header_maxsize = HEADER_MAXSIZE;
944 int header_line_maxsize = 0;
945
946 header_name header_names[] = {
947 /* name len allow_resent htype */
948 { US"bcc", 3, TRUE, htype_bcc },
949 { US"cc", 2, TRUE, htype_cc },
950 { US"date", 4, TRUE, htype_date },
951 { US"delivery-date", 13, FALSE, htype_delivery_date },
952 { US"envelope-to", 11, FALSE, htype_envelope_to },
953 { US"from", 4, TRUE, htype_from },
954 { US"message-id", 10, TRUE, htype_id },
955 { US"received", 8, FALSE, htype_received },
956 { US"reply-to", 8, FALSE, htype_reply_to },
957 { US"return-path", 11, FALSE, htype_return_path },
958 { US"sender", 6, TRUE, htype_sender },
959 { US"subject", 7, FALSE, htype_subject },
960 { US"to", 2, TRUE, htype_to }
961 };
962
963 int header_names_size = nelem(header_names);
964
965 uschar *helo_accept_junk_hosts = NULL;
966 uschar *helo_allow_chars = US"";
967 uschar *helo_lookup_domains = US"@ : @[]";
968 uschar *helo_try_verify_hosts = NULL;
969 uschar *helo_verify_hosts = NULL;
970 const uschar *hex_digits = CUS"0123456789abcdef";
971 uschar *hold_domains = NULL;
972 uschar *host_data = NULL;
973 uschar *host_lookup = NULL;
974 uschar *host_lookup_order = US"bydns:byaddr";
975 uschar *host_lookup_msg = US"";
976 int host_number = 0;
977 uschar *host_number_string = NULL;
978 uschar *host_reject_connection = NULL;
979 tree_node *hostlist_anchor = NULL;
980 int hostlist_count = 0;
981 uschar *hosts_treat_as_local = NULL;
982 uschar *hosts_connection_nolog = NULL;
983
984 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
985 uschar *ignore_fromline_hosts = NULL;
986 int inetd_wait_timeout = -1;
987 uschar *initial_cwd = NULL;
988 uschar *interface_address = NULL;
989 int interface_port = -1;
990 uschar *iterate_item = NULL;
991
992 int journal_fd = -1;
993
994 uschar *keep_environment = NULL;
995
996 int keep_malformed = 4*24*60*60; /* 4 days */
997
998 uschar *eldap_dn = NULL;
999 int load_average = -2;
1000 uschar *local_from_prefix = NULL;
1001 uschar *local_from_suffix = NULL;
1002
1003 #if HAVE_IPV6
1004 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1005 #else
1006 uschar *local_interfaces = US"0.0.0.0";
1007 #endif
1008
1009 #ifdef HAVE_LOCAL_SCAN
1010 uschar *local_scan_data = NULL;
1011 int local_scan_timeout = 5*60;
1012 #endif
1013 gid_t local_user_gid = (gid_t)(-1);
1014 uid_t local_user_uid = (uid_t)(-1);
1015
1016 tree_node *localpartlist_anchor= NULL;
1017 int localpartlist_count = 0;
1018 uschar *log_buffer = NULL;
1019
1020 int log_default[] = { /* for initializing log_selector */
1021 Li_acl_warn_skipped,
1022 Li_connection_reject,
1023 Li_delay_delivery,
1024 Li_dkim,
1025 Li_dnslist_defer,
1026 Li_etrn,
1027 Li_host_lookup_failed,
1028 Li_lost_incoming_connection,
1029 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1030 Li_queue_run,
1031 Li_rejected_header,
1032 Li_retry_defer,
1033 Li_sender_verify_fail,
1034 Li_size_reject,
1035 Li_skip_delivery,
1036 Li_smtp_confirmation,
1037 Li_tls_certificate_verified,
1038 Li_tls_cipher,
1039 -1
1040 };
1041
1042 uschar *log_file_path = US LOG_FILE_PATH
1043 "\0<--------------Space to patch log_file_path->";
1044
1045 int log_notall[] = {
1046 -1
1047 };
1048 bit_table log_options[] = { /* must be in alphabetical order */
1049 BIT_TABLE(L, 8bitmime),
1050 BIT_TABLE(L, acl_warn_skipped),
1051 BIT_TABLE(L, address_rewrite),
1052 BIT_TABLE(L, all),
1053 BIT_TABLE(L, all_parents),
1054 BIT_TABLE(L, arguments),
1055 BIT_TABLE(L, connection_reject),
1056 BIT_TABLE(L, delay_delivery),
1057 BIT_TABLE(L, deliver_time),
1058 BIT_TABLE(L, delivery_size),
1059 #ifndef DISABLE_DKIM
1060 BIT_TABLE(L, dkim),
1061 BIT_TABLE(L, dkim_verbose),
1062 #endif
1063 BIT_TABLE(L, dnslist_defer),
1064 BIT_TABLE(L, dnssec),
1065 BIT_TABLE(L, etrn),
1066 BIT_TABLE(L, host_lookup_failed),
1067 BIT_TABLE(L, ident_timeout),
1068 BIT_TABLE(L, incoming_interface),
1069 BIT_TABLE(L, incoming_port),
1070 BIT_TABLE(L, lost_incoming_connection),
1071 BIT_TABLE(L, millisec),
1072 BIT_TABLE(L, outgoing_interface),
1073 BIT_TABLE(L, outgoing_port),
1074 BIT_TABLE(L, pid),
1075 BIT_TABLE(L, pipelining),
1076 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1077 BIT_TABLE(L, proxy),
1078 #endif
1079 BIT_TABLE(L, queue_run),
1080 BIT_TABLE(L, queue_time),
1081 BIT_TABLE(L, queue_time_overall),
1082 BIT_TABLE(L, receive_time),
1083 BIT_TABLE(L, received_recipients),
1084 BIT_TABLE(L, received_sender),
1085 BIT_TABLE(L, rejected_header),
1086 { US"rejected_headers", Li_rejected_header },
1087 BIT_TABLE(L, retry_defer),
1088 BIT_TABLE(L, return_path_on_delivery),
1089 BIT_TABLE(L, sender_on_delivery),
1090 BIT_TABLE(L, sender_verify_fail),
1091 BIT_TABLE(L, size_reject),
1092 BIT_TABLE(L, skip_delivery),
1093 BIT_TABLE(L, smtp_confirmation),
1094 BIT_TABLE(L, smtp_connection),
1095 BIT_TABLE(L, smtp_incomplete_transaction),
1096 BIT_TABLE(L, smtp_mailauth),
1097 BIT_TABLE(L, smtp_no_mail),
1098 BIT_TABLE(L, smtp_protocol_error),
1099 BIT_TABLE(L, smtp_syntax_error),
1100 BIT_TABLE(L, subject),
1101 BIT_TABLE(L, tls_certificate_verified),
1102 BIT_TABLE(L, tls_cipher),
1103 BIT_TABLE(L, tls_peerdn),
1104 BIT_TABLE(L, tls_sni),
1105 BIT_TABLE(L, unknown_in_list),
1106 };
1107 int log_options_count = nelem(log_options);
1108
1109 int log_reject_target = 0;
1110 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1111 uschar *log_selector_string = NULL;
1112 FILE *log_stderr = NULL;
1113 uschar *login_sender_address = NULL;
1114 uschar *lookup_dnssec_authenticated = NULL;
1115 int lookup_open_max = 25;
1116 uschar *lookup_value = NULL;
1117
1118 macro_item *macros_user = NULL;
1119 uschar *mailstore_basename = NULL;
1120 #ifdef WITH_CONTENT_SCAN
1121 uschar *malware_name = NULL; /* Virus Name */
1122 #endif
1123 int max_received_linelength= 0;
1124 int max_username_length = 0;
1125 int message_age = 0;
1126 uschar *message_body = NULL;
1127 uschar *message_body_end = NULL;
1128 int message_body_size = 0;
1129 int message_body_visible = 500;
1130 int message_ended = END_NOTSTARTED;
1131 uschar *message_headers = NULL;
1132 uschar *message_id;
1133 uschar *message_id_domain = NULL;
1134 uschar *message_id_text = NULL;
1135 struct timeval message_id_tv = { 0, 0 };
1136 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1137 uschar *message_id_external;
1138 int message_linecount = 0;
1139 int message_size = 0;
1140 uschar *message_size_limit = US"50M";
1141 #ifdef SUPPORT_I18N
1142 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1143 #endif
1144 uschar message_subdir[2] = { 0, 0 };
1145 uschar *message_reference = NULL;
1146
1147 /* MIME ACL expandables */
1148 #ifdef WITH_CONTENT_SCAN
1149 int mime_anomaly_level = 0;
1150 const uschar *mime_anomaly_text = NULL;
1151 uschar *mime_boundary = NULL;
1152 uschar *mime_charset = NULL;
1153 uschar *mime_content_description = NULL;
1154 uschar *mime_content_disposition = NULL;
1155 uschar *mime_content_id = NULL;
1156 unsigned int mime_content_size = 0;
1157 uschar *mime_content_transfer_encoding = NULL;
1158 uschar *mime_content_type = NULL;
1159 uschar *mime_decoded_filename = NULL;
1160 uschar *mime_filename = NULL;
1161 int mime_is_multipart = 0;
1162 int mime_is_coverletter = 0;
1163 int mime_is_rfc822 = 0;
1164 int mime_part_count = -1;
1165 #endif
1166
1167 uid_t *never_users = NULL;
1168
1169 const int on = 1; /* for setsockopt */
1170 const int off = 0;
1171
1172 uid_t original_euid;
1173 gid_t originator_gid;
1174 uschar *originator_login = NULL;
1175 uschar *originator_name = NULL;
1176 uid_t originator_uid;
1177 uschar *override_local_interfaces = NULL;
1178 uschar *override_pid_file_path = NULL;
1179
1180 uschar *percent_hack_domains = NULL;
1181 uschar *pid_file_path = US PID_FILE_PATH
1182 "\0<--------------Space to patch pid_file_path->";
1183 uschar *pipelining_advertise_hosts = US"*";
1184 uschar *primary_hostname = NULL;
1185 uschar process_info[PROCESS_INFO_SIZE];
1186 int process_info_len = 0;
1187 uschar *process_log_path = NULL;
1188
1189 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1190 uschar *hosts_proxy = NULL;
1191 uschar *proxy_external_address = NULL;
1192 int proxy_external_port = 0;
1193 uschar *proxy_local_address = NULL;
1194 int proxy_local_port = 0;
1195 #endif
1196
1197 uschar *prvscheck_address = NULL;
1198 uschar *prvscheck_keynum = NULL;
1199 uschar *prvscheck_result = NULL;
1200
1201
1202 const uschar *qualify_domain_recipient = NULL;
1203 uschar *qualify_domain_sender = NULL;
1204 uschar *queue_domains = NULL;
1205 int queue_interval = -1;
1206 uschar *queue_name = US"";
1207 uschar *queue_only_file = NULL;
1208 int queue_only_load = -1;
1209 uschar *queue_run_max = US"5";
1210 pid_t queue_run_pid = (pid_t)0;
1211 int queue_run_pipe = -1;
1212 uschar *queue_smtp_domains = NULL;
1213
1214 unsigned int random_seed = 0;
1215 tree_node *ratelimiters_cmd = NULL;
1216 tree_node *ratelimiters_conn = NULL;
1217 tree_node *ratelimiters_mail = NULL;
1218 uschar *raw_active_hostname = NULL;
1219 uschar *raw_sender = NULL;
1220 uschar **raw_recipients = NULL;
1221 int raw_recipients_count = 0;
1222
1223 int rcpt_count = 0;
1224 int rcpt_fail_count = 0;
1225 int rcpt_defer_count = 0;
1226 gid_t real_gid;
1227 uid_t real_uid;
1228 int receive_linecount = 0;
1229 int receive_messagecount = 0;
1230 int receive_timeout = 0;
1231 int received_count = 0;
1232 uschar *received_for = NULL;
1233
1234 /* This is the default text for Received headers generated by Exim. The
1235 date will be automatically added on the end. */
1236
1237 uschar *received_header_text = US
1238 "Received: "
1239 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1240 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1241 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1242 "by $primary_hostname "
1243 "${if def:received_protocol {with $received_protocol}} "
1244 #ifdef SUPPORT_TLS
1245 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1246 #endif
1247 "(Exim $version_number)\n\t"
1248 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1249 "id $message_exim_id"
1250 "${if def:received_for {\n\tfor $received_for}}"
1251 "\0<---------------Space to patch received_header_text->";
1252
1253 int received_headers_max = 30;
1254 uschar *received_protocol = NULL;
1255 struct timeval received_time = { 0, 0 };
1256 struct timeval received_time_taken = { 0, 0 };
1257 uschar *recipient_data = NULL;
1258 uschar *recipient_unqualified_hosts = NULL;
1259 uschar *recipient_verify_failure = NULL;
1260 int recipients_count = 0;
1261 recipient_item *recipients_list = NULL;
1262 int recipients_list_max = 0;
1263 int recipients_max = 0;
1264 const pcre *regex_AUTH = NULL;
1265 const pcre *regex_check_dns_names = NULL;
1266 const pcre *regex_From = NULL;
1267 const pcre *regex_IGNOREQUOTA = NULL;
1268 const pcre *regex_PIPELINING = NULL;
1269 const pcre *regex_SIZE = NULL;
1270 const pcre *regex_ismsgid = NULL;
1271 const pcre *regex_smtp_code = NULL;
1272 uschar *regex_vars[REGEX_VARS];
1273 #ifdef WHITELIST_D_MACROS
1274 const pcre *regex_whitelisted_macro = NULL;
1275 #endif
1276 #ifdef WITH_CONTENT_SCAN
1277 uschar *regex_match_string = NULL;
1278 #endif
1279 int remote_delivery_count = 0;
1280 int remote_max_parallel = 2;
1281 uschar *remote_sort_domains = NULL;
1282 int retry_data_expire = 7*24*60*60;
1283 int retry_interval_max = 24*60*60;
1284 int retry_maximum_timeout = 0; /* set from retry config */
1285 retry_config *retries = NULL;
1286 uschar *return_path = NULL;
1287 int rewrite_existflags = 0;
1288 uschar *rfc1413_hosts = US"@[]";
1289 int rfc1413_query_timeout = 0;
1290 uid_t root_gid = ROOT_GID;
1291 uid_t root_uid = ROOT_UID;
1292
1293 router_instance *routers = NULL;
1294 router_instance router_defaults = {
1295 .next = NULL,
1296 .name = NULL,
1297 .info = NULL,
1298 .options_block = NULL,
1299 .driver_name = NULL,
1300
1301 .address_data = NULL,
1302 #ifdef EXPERIMENTAL_BRIGHTMAIL
1303 .bmi_rule = NULL,
1304 #endif
1305 .cannot_route_message = NULL,
1306 .condition = NULL,
1307 .current_directory = NULL,
1308 .debug_string = NULL,
1309 .domains = NULL,
1310 .errors_to = NULL,
1311 .expand_gid = NULL,
1312 .expand_uid = NULL,
1313 .expand_more = NULL,
1314 .expand_unseen = NULL,
1315 .extra_headers = NULL,
1316 .fallback_hosts = NULL,
1317 .home_directory = NULL,
1318 .ignore_target_hosts = NULL,
1319 .local_parts = NULL,
1320 .pass_router_name = NULL,
1321 .prefix = NULL,
1322 .redirect_router_name = NULL,
1323 .remove_headers = NULL,
1324 .require_files = NULL,
1325 .router_home_directory = NULL,
1326 .self = US"freeze",
1327 .senders = NULL,
1328 .suffix = NULL,
1329 .translate_ip_address = NULL,
1330 .transport_name = NULL,
1331
1332 .address_test = TRUE,
1333 #ifdef EXPERIMENTAL_BRIGHTMAIL
1334 .bmi_deliver_alternate = FALSE,
1335 .bmi_deliver_default = FALSE,
1336 .bmi_dont_deliver = FALSE,
1337 #endif
1338 .expn = TRUE,
1339 .caseful_local_part = FALSE,
1340 .check_local_user = FALSE,
1341 .disable_logging = FALSE,
1342 .fail_verify_recipient = FALSE,
1343 .fail_verify_sender = FALSE,
1344 .gid_set = FALSE,
1345 .initgroups = FALSE,
1346 .log_as_local = TRUE_UNSET,
1347 .more = TRUE,
1348 .pass_on_timeout = FALSE,
1349 .prefix_optional = FALSE,
1350 .repeat_use = TRUE,
1351 .retry_use_local_part = TRUE_UNSET,
1352 .same_domain_copy_routing = FALSE,
1353 .self_rewrite = FALSE,
1354 .suffix_optional = FALSE,
1355 .verify_only = FALSE,
1356 .verify_recipient = TRUE,
1357 .verify_sender = TRUE,
1358 .uid_set = FALSE,
1359 .unseen = FALSE,
1360 .dsn_lasthop = FALSE,
1361
1362 .self_code = self_freeze,
1363 .uid = (uid_t)(-1),
1364 .gid = (gid_t)(-1),
1365
1366 .fallback_hostlist = NULL,
1367 .transport = NULL,
1368 .pass_router = NULL,
1369 .redirect_router = NULL,
1370
1371 .dnssec = { NULL, NULL }, /* dnssec_domains {require,request} */
1372 };
1373
1374 uschar *router_name = NULL;
1375
1376 ip_address_item *running_interfaces = NULL;
1377
1378 /* This is a weird one. The following string gets patched in the binary by the
1379 script that sets up a copy of Exim for running in the test harness. It seems
1380 that compilers are now clever, and share constant strings if they can.
1381 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1382 make use of the end of this string in order to save space. So the patching then
1383 wrecks this. We defeat this optimization by adding some additional characters
1384 onto the end of the string. */
1385
1386 uschar *running_status = US">>>running<<<" "\0EXTRA";
1387
1388 int runrc = 0;
1389
1390 uschar *search_error_message = NULL;
1391 uschar *self_hostname = NULL;
1392 uschar *sender_address = NULL;
1393 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1394 uschar *sender_address_data = NULL;
1395 uschar *sender_address_unrewritten = NULL;
1396 uschar *sender_data = NULL;
1397 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1398 uschar *sender_fullhost = NULL;
1399 uschar *sender_helo_name = NULL;
1400 uschar **sender_host_aliases = &no_aliases;
1401 uschar *sender_host_address = NULL;
1402 uschar *sender_host_authenticated = NULL;
1403 uschar *sender_host_auth_pubname = NULL;
1404 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1405 uschar *sender_host_name = NULL;
1406 int sender_host_port = 0;
1407 uschar *sender_ident = NULL;
1408 uschar *sender_rate = NULL;
1409 uschar *sender_rate_limit = NULL;
1410 uschar *sender_rate_period = NULL;
1411 uschar *sender_rcvhost = NULL;
1412 uschar *sender_unqualified_hosts = NULL;
1413 uschar *sender_verify_failure = NULL;
1414 address_item *sender_verified_list = NULL;
1415 address_item *sender_verified_failed = NULL;
1416 int sender_verified_rc = -1;
1417 uschar *sending_ip_address = NULL;
1418 int sending_port = -1;
1419 SIGNAL_BOOL sigalrm_seen = FALSE;
1420 const uschar *sigalarm_setter = NULL;
1421 uschar **sighup_argv = NULL;
1422 int slow_lookup_log = 0; /* millisecs, zero disables */
1423 int smtp_accept_count = 0;
1424 int smtp_accept_max = 20;
1425 int smtp_accept_max_nonmail= 10;
1426 uschar *smtp_accept_max_nonmail_hosts = US"*";
1427 int smtp_accept_max_per_connection = 1000;
1428 uschar *smtp_accept_max_per_host = NULL;
1429 int smtp_accept_queue = 0;
1430 int smtp_accept_queue_per_connection = 10;
1431 int smtp_accept_reserve = 0;
1432 uschar *smtp_active_hostname = NULL;
1433 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1434 "Exim $version_number $tod_full"
1435 "\0<---------------Space to patch smtp_banner->";
1436 int smtp_ch_index = 0;
1437 uschar *smtp_cmd_argument = NULL;
1438 uschar *smtp_cmd_buffer = NULL;
1439 struct timeval smtp_connection_start = {0,0};
1440 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1441 int smtp_connect_backlog = 20;
1442 double smtp_delay_mail = 0.0;
1443 double smtp_delay_rcpt = 0.0;
1444 FILE *smtp_in = NULL;
1445 int smtp_load_reserve = -1;
1446 int smtp_mailcmd_count = 0;
1447 FILE *smtp_out = NULL;
1448 uschar *smtp_etrn_command = NULL;
1449 int smtp_max_synprot_errors= 3;
1450 int smtp_max_unknown_commands = 3;
1451 uschar *smtp_notquit_reason = NULL;
1452 uschar *smtp_ratelimit_hosts = NULL;
1453 uschar *smtp_ratelimit_mail = NULL;
1454 uschar *smtp_ratelimit_rcpt = NULL;
1455 uschar *smtp_read_error = US"";
1456 int smtp_receive_timeout = 5*60;
1457 uschar *smtp_receive_timeout_s = NULL;
1458 uschar *smtp_reserve_hosts = NULL;
1459 int smtp_rlm_base = 0;
1460 double smtp_rlm_factor = 0.0;
1461 int smtp_rlm_limit = 0;
1462 int smtp_rlm_threshold = INT_MAX;
1463 int smtp_rlr_base = 0;
1464 double smtp_rlr_factor = 0.0;
1465 int smtp_rlr_limit = 0;
1466 int smtp_rlr_threshold = INT_MAX;
1467 unsigned smtp_peer_options = 0;
1468 unsigned smtp_peer_options_wrap= 0;
1469 #ifdef SUPPORT_I18N
1470 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1471 #endif
1472
1473 #ifdef WITH_CONTENT_SCAN
1474 uschar *spamd_address = US"127.0.0.1 783";
1475 uschar *spam_bar = NULL;
1476 uschar *spam_report = NULL;
1477 uschar *spam_action = NULL;
1478 uschar *spam_score = NULL;
1479 uschar *spam_score_int = NULL;
1480 #endif
1481 #ifdef SUPPORT_SPF
1482 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1483 uschar *spf_header_comment = NULL;
1484 uschar *spf_received = NULL;
1485 uschar *spf_result = NULL;
1486 uschar *spf_smtp_comment = NULL;
1487 #endif
1488
1489 FILE *spool_data_file = NULL;
1490 uschar *spool_directory = US SPOOL_DIRECTORY
1491 "\0<--------------Space to patch spool_directory->";
1492 #ifdef EXPERIMENTAL_SRS
1493 uschar *srs_config = NULL;
1494 uschar *srs_db_address = NULL;
1495 uschar *srs_db_key = NULL;
1496 int srs_hashlength = 6;
1497 int srs_hashmin = -1;
1498 int srs_maxage = 31;
1499 uschar *srs_orig_recipient = NULL;
1500 uschar *srs_orig_sender = NULL;
1501 uschar *srs_recipient = NULL;
1502 uschar *srs_secrets = NULL;
1503 uschar *srs_status = NULL;
1504 #endif
1505 int string_datestamp_offset= -1;
1506 int string_datestamp_length= 0;
1507 int string_datestamp_type = -1;
1508 uschar *submission_domain = NULL;
1509 uschar *submission_name = NULL;
1510 int syslog_facility = LOG_MAIL;
1511 uschar *syslog_processname = US"exim";
1512 uschar *system_filter = NULL;
1513
1514 uschar *system_filter_directory_transport = NULL;
1515 uschar *system_filter_file_transport = NULL;
1516 uschar *system_filter_pipe_transport = NULL;
1517 uschar *system_filter_reply_transport = NULL;
1518
1519 gid_t system_filter_gid = 0;
1520 uid_t system_filter_uid = (uid_t)-1;
1521
1522 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1523 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1524 #ifdef USE_TCP_WRAPPERS
1525 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1526 #endif
1527 int test_harness_load_avg = 0;
1528 int thismessage_size_limit = 0;
1529 int timeout_frozen_after = 0;
1530
1531 transport_instance *transports = NULL;
1532
1533 transport_instance transport_defaults = {
1534 .next = NULL,
1535 .name = NULL,
1536 .info = NULL,
1537 .options_block = NULL,
1538 .driver_name = NULL,
1539 .setup = NULL,
1540 .batch_max = 1,
1541 .batch_id = NULL,
1542 .home_dir = NULL,
1543 .current_dir = NULL,
1544 .expand_multi_domain = NULL,
1545 .multi_domain = TRUE,
1546 .overrides_hosts = FALSE,
1547 .max_addresses = 100,
1548 .connection_max_messages = 500,
1549 .deliver_as_creator = FALSE,
1550 .disable_logging = FALSE,
1551 .initgroups = FALSE,
1552 .uid_set = FALSE,
1553 .gid_set = FALSE,
1554 .uid = (uid_t)(-1),
1555 .gid = (gid_t)(-1),
1556 .expand_uid = NULL,
1557 .expand_gid = NULL,
1558 .warn_message = NULL,
1559 .shadow = NULL,
1560 .shadow_condition = NULL,
1561 .filter_command = NULL,
1562 .add_headers = NULL,
1563 .remove_headers = NULL,
1564 .return_path = NULL,
1565 .debug_string = NULL,
1566 .max_parallel = NULL,
1567 .message_size_limit = NULL,
1568 .headers_rewrite = NULL,
1569 .rewrite_rules = NULL,
1570 .rewrite_existflags = 0,
1571 .filter_timeout = 300,
1572 .body_only = FALSE,
1573 .delivery_date_add = FALSE,
1574 .envelope_to_add = FALSE,
1575 .headers_only = FALSE,
1576 .rcpt_include_affixes = FALSE,
1577 .return_path_add = FALSE,
1578 .return_output = FALSE,
1579 .return_fail_output = FALSE,
1580 .log_output = FALSE,
1581 .log_fail_output = FALSE,
1582 .log_defer_output = FALSE,
1583 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1584 1 nor 0 so can detect unset */
1585 #ifndef DISABLE_EVENT
1586 .event_action = NULL
1587 #endif
1588 };
1589
1590 int transport_count;
1591 uschar *transport_name = NULL;
1592 int transport_newlines;
1593 const uschar **transport_filter_argv = NULL;
1594 int transport_filter_timeout;
1595 int transport_write_timeout= 0;
1596
1597 tree_node *tree_dns_fails = NULL;
1598 tree_node *tree_duplicates = NULL;
1599 tree_node *tree_nonrecipients = NULL;
1600 tree_node *tree_unusable = NULL;
1601
1602 gid_t *trusted_groups = NULL;
1603 uid_t *trusted_users = NULL;
1604 uschar *timezone_string = US TIMEZONE_DEFAULT;
1605
1606 uschar *unknown_login = NULL;
1607 uschar *unknown_username = NULL;
1608 uschar *untrusted_set_sender = NULL;
1609
1610 /* A regex for matching a "From_" line in an incoming message, in the form
1611
1612 From ph10 Fri Jan 5 12:35 GMT 1996
1613
1614 which the "mail" commands send to the MTA (undocumented, of course), or in
1615 the form
1616
1617 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1618
1619 which is apparently used by some UUCPs, despite it not being in RFC 976.
1620 Because of variations in time formats, just match up to the minutes. That
1621 should be sufficient. Examples have been seen of time fields like 12:1:03,
1622 so just require one digit for hours and minutes. The weekday is also absent
1623 in some forms. */
1624
1625 uschar *uucp_from_pattern = US
1626 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1627 "(?:" /* Non-extracting bracket */
1628 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1629 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1630 ")" /* End alternation */
1631 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1632
1633 uschar *uucp_from_sender = US"$1";
1634
1635 uschar *verify_mode = NULL;
1636 uschar *version_copyright =
1637 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1638 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1639 uschar *version_date = US"?";
1640 uschar *version_cnumber = US"????";
1641 uschar *version_string = US"?";
1642
1643 uschar *warn_message_file = NULL;
1644 int warning_count = 0;
1645 uschar *warnmsg_delay = NULL;
1646 uschar *warnmsg_recipients = NULL;
1647
1648
1649 /* End of globals.c */