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OpenSSL: enable use of TLS 1.3 (with OpenSSL 1.1.0 and later)
[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. */
102
103 tls_support tls_in = {
104 .active = -1,
105 .bits = 0,
106 .certificate_verified = FALSE,
107 #ifdef SUPPORT_DANE
108 .dane_verified = FALSE,
109 .tlsa_usage = 0,
110 #endif
111 .cipher = NULL,
112 .on_connect = FALSE,
113 .on_connect_ports = NULL,
114 .ourcert = NULL,
115 .peercert = NULL,
116 .peerdn = NULL,
117 .sni = NULL,
118 .ocsp = OCSP_NOT_REQ
119 };
120 tls_support tls_out = {
121 .active = -1,
122 .bits = 0,
123 .certificate_verified = FALSE,
124 #ifdef SUPPORT_DANE
125 .dane_verified = FALSE,
126 .tlsa_usage = 0,
127 #endif
128 .cipher = NULL,
129 .on_connect = FALSE,
130 .on_connect_ports = NULL,
131 .ourcert = NULL,
132 .peercert = NULL,
133 .peerdn = NULL,
134 .sni = NULL,
135 .ocsp = OCSP_NOT_REQ
136 };
137
138 uschar *dsn_envid = NULL;
139 int dsn_ret = 0;
140 const pcre *regex_DSN = NULL;
141 uschar *dsn_advertise_hosts = NULL;
142
143 #ifdef SUPPORT_TLS
144 BOOL gnutls_compat_mode = FALSE;
145 BOOL gnutls_allow_auto_pkcs11 = FALSE;
146 uschar *openssl_options = NULL;
147 const pcre *regex_STARTTLS = NULL;
148 uschar *tls_advertise_hosts = US"*";
149 uschar *tls_certificate = NULL;
150 uschar *tls_crl = NULL;
151 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
152 that's the interop problem which has been observed: GnuTLS suggesting a higher
153 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
154 int tls_dh_max_bits = 2236;
155 uschar *tls_dhparam = NULL;
156 uschar *tls_eccurve = US"auto";
157 # ifndef DISABLE_OCSP
158 uschar *tls_ocsp_file = NULL;
159 # endif
160 uschar *tls_privatekey = NULL;
161 BOOL tls_remember_esmtp = FALSE;
162 uschar *tls_require_ciphers = NULL;
163 uschar *tls_try_verify_hosts = NULL;
164 uschar *tls_verify_certificates= US"system";
165 uschar *tls_verify_hosts = NULL;
166 #else /*!SUPPORT_TLS*/
167 uschar *tls_advertise_hosts = NULL;
168 #endif
169
170 #ifndef DISABLE_PRDR
171 /* Per Recipient Data Response variables */
172 BOOL prdr_enable = FALSE;
173 BOOL prdr_requested = FALSE;
174 const pcre *regex_PRDR = NULL;
175 #endif
176
177 #ifdef SUPPORT_I18N
178 const pcre *regex_UTF8 = NULL;
179 #endif
180
181 /* Input-reading functions for messages, so we can use special ones for
182 incoming TCP/IP. The defaults use stdin. We never need these for any
183 stand-alone tests. */
184
185 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
187 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
188 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
189 int (*receive_getc)(unsigned) = stdin_getc;
190 uschar * (*receive_getbuf)(unsigned *) = NULL;
191 void (*receive_get_cache)(void)= NULL;
192 int (*receive_ungetc)(int) = stdin_ungetc;
193 int (*receive_feof)(void) = stdin_feof;
194 int (*receive_ferror)(void) = stdin_ferror;
195 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
196 #endif
197
198
199 /* List of per-address expansion variables for clearing and saving/restoring
200 when verifying one address while routing/verifying another. We have to have
201 the size explicit, because it is referenced from more than one module. */
202
203 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
204 CUSS &deliver_address_data,
205 CUSS &deliver_domain,
206 CUSS &deliver_domain_data,
207 CUSS &deliver_domain_orig,
208 CUSS &deliver_domain_parent,
209 CUSS &deliver_localpart,
210 CUSS &deliver_localpart_data,
211 CUSS &deliver_localpart_orig,
212 CUSS &deliver_localpart_parent,
213 CUSS &deliver_localpart_prefix,
214 CUSS &deliver_localpart_suffix,
215 CUSS (uschar **)(&deliver_recipients),
216 CUSS &deliver_host,
217 CUSS &deliver_home,
218 CUSS &address_file,
219 CUSS &address_pipe,
220 CUSS &self_hostname,
221 NULL };
222
223 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
224
225 /* General global variables */
226
227 header_line *acl_added_headers = NULL;
228 tree_node *acl_anchor = NULL;
229 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
230 NULL, NULL, NULL, NULL};
231 int acl_narg = 0;
232
233 int acl_level = 0;
234
235 uschar *acl_not_smtp = NULL;
236 #ifdef WITH_CONTENT_SCAN
237 uschar *acl_not_smtp_mime = NULL;
238 #endif
239 uschar *acl_not_smtp_start = NULL;
240 uschar *acl_removed_headers = NULL;
241 uschar *acl_smtp_auth = NULL;
242 uschar *acl_smtp_connect = NULL;
243 uschar *acl_smtp_data = NULL;
244 #ifndef DISABLE_PRDR
245 uschar *acl_smtp_data_prdr = US"accept";
246 #endif
247 #ifndef DISABLE_DKIM
248 uschar *acl_smtp_dkim = NULL;
249 #endif
250 uschar *acl_smtp_etrn = NULL;
251 uschar *acl_smtp_expn = NULL;
252 uschar *acl_smtp_helo = NULL;
253 uschar *acl_smtp_mail = NULL;
254 uschar *acl_smtp_mailauth = NULL;
255 #ifdef WITH_CONTENT_SCAN
256 uschar *acl_smtp_mime = NULL;
257 #endif
258 uschar *acl_smtp_notquit = NULL;
259 uschar *acl_smtp_predata = NULL;
260 uschar *acl_smtp_quit = NULL;
261 uschar *acl_smtp_rcpt = NULL;
262 uschar *acl_smtp_starttls = NULL;
263 uschar *acl_smtp_vrfy = NULL;
264
265 BOOL acl_temp_details = FALSE;
266 tree_node *acl_var_c = NULL;
267 tree_node *acl_var_m = NULL;
268 uschar *acl_verify_message = NULL;
269 string_item *acl_warn_logged = NULL;
270
271 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
272 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
273
274 uschar *acl_wherenames[] = { US"RCPT",
275 US"MAIL",
276 US"PREDATA",
277 US"MIME",
278 US"DKIM",
279 US"DATA",
280 #ifndef DISABLE_PRDR
281 US"PRDR",
282 #endif
283 US"non-SMTP",
284 US"AUTH",
285 US"connection",
286 US"ETRN",
287 US"EXPN",
288 US"EHLO or HELO",
289 US"MAILAUTH",
290 US"non-SMTP-start",
291 US"NOTQUIT",
292 US"QUIT",
293 US"STARTTLS",
294 US"VRFY",
295 US"delivery",
296 US"unknown"
297 };
298
299 uschar *acl_wherecodes[] = { US"550", /* RCPT */
300 US"550", /* MAIL */
301 US"550", /* PREDATA */
302 US"550", /* MIME */
303 US"550", /* DKIM */
304 US"550", /* DATA */
305 #ifndef DISABLE_PRDR
306 US"550", /* RCPT PRDR */
307 #endif
308 US"0", /* not SMTP; not relevant */
309 US"503", /* AUTH */
310 US"550", /* connect */
311 US"458", /* ETRN */
312 US"550", /* EXPN */
313 US"550", /* HELO/EHLO */
314 US"0", /* MAILAUTH; not relevant */
315 US"0", /* not SMTP; not relevant */
316 US"0", /* NOTQUIT; not relevant */
317 US"0", /* QUIT; not relevant */
318 US"550", /* STARTTLS */
319 US"252", /* VRFY */
320 US"0", /* delivery; not relevant */
321 US"0" /* unknown; not relevant */
322 };
323
324 BOOL active_local_from_check = FALSE;
325 BOOL active_local_sender_retain = FALSE;
326 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
327 uschar *add_environment = NULL;
328 address_item *addr_duplicate = NULL;
329
330 address_item address_defaults = {
331 .next = NULL,
332 .parent = NULL,
333 .first = NULL,
334 .dupof = NULL,
335 .start_router = NULL,
336 .router = NULL,
337 .transport = NULL,
338 .host_list = NULL,
339 .host_used = NULL,
340 .fallback_hosts = NULL,
341 .reply = NULL,
342 .retries = NULL,
343 .address = NULL,
344 .unique = NULL,
345 .cc_local_part = NULL,
346 .lc_local_part = NULL,
347 .local_part = NULL,
348 .prefix = NULL,
349 .suffix = NULL,
350 .domain = NULL,
351 .address_retry_key = NULL,
352 .domain_retry_key = NULL,
353 .current_dir = NULL,
354 .home_dir = NULL,
355 .message = NULL,
356 .user_message = NULL,
357 .onetime_parent = NULL,
358 .pipe_expandn = NULL,
359 .return_filename = NULL,
360 .self_hostname = NULL,
361 .shadow_message = NULL,
362 #ifdef SUPPORT_TLS
363 .cipher = NULL,
364 .ourcert = NULL,
365 .peercert = NULL,
366 .peerdn = NULL,
367 .ocsp = OCSP_NOT_REQ,
368 #endif
369 #ifdef EXPERIMENTAL_DSN_INFO
370 .smtp_greeting = NULL,
371 .helo_response = NULL,
372 #endif
373 .authenticator = NULL,
374 .auth_id = NULL,
375 .auth_sndr = NULL,
376 .dsn_orcpt = NULL,
377 .dsn_flags = 0,
378 .dsn_aware = 0,
379 .uid = (uid_t)(-1),
380 .gid = (gid_t)(-1),
381 .flags = { 0 },
382 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
383 .localpart_cache = { 0 }, /* localpart_cache - ditto */
384 .mode = -1,
385 .more_errno = 0,
386 .delivery_usec = 0,
387 .basic_errno = ERRNO_UNKNOWNERROR,
388 .child_count = 0,
389 .return_file = -1,
390 .special_action = SPECIAL_NONE,
391 .transport_return = DEFER,
392 .prop = { /* fields that are propagated to children */
393 .address_data = NULL,
394 .domain_data = NULL,
395 .localpart_data = NULL,
396 .errors_address = NULL,
397 .extra_headers = NULL,
398 .remove_headers = NULL,
399 #ifdef EXPERIMENTAL_SRS
400 .srs_sender = NULL,
401 #endif
402 .ignore_error = FALSE,
403 #ifdef SUPPORT_I18N
404 .utf8_msg = FALSE,
405 .utf8_downcvt = FALSE,
406 .utf8_downcvt_maybe = FALSE
407 #endif
408 }
409 };
410
411 uschar *address_file = NULL;
412 uschar *address_pipe = NULL;
413 BOOL address_test_mode = FALSE;
414 tree_node *addresslist_anchor = NULL;
415 int addresslist_count = 0;
416 gid_t *admin_groups = NULL;
417 BOOL admin_user = FALSE;
418 BOOL allow_auth_unadvertised= FALSE;
419 BOOL allow_domain_literals = FALSE;
420 BOOL allow_mx_to_ip = FALSE;
421 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
422 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
423 BOOL allow_utf8_domains = FALSE;
424
425 #ifdef EXPERIMENTAL_ARC
426 struct arc_set *arc_received = NULL;
427 int arc_received_instance = 0;
428 int arc_oldest_pass = 0;
429 const uschar *arc_state = NULL;
430 const uschar *arc_state_reason = NULL;
431 #endif
432
433 uschar *authenticated_fail_id = NULL;
434 uschar *authenticated_id = NULL;
435 uschar *authenticated_sender = NULL;
436 BOOL authentication_failed = FALSE;
437 BOOL authentication_local = FALSE;
438 auth_instance *auths = NULL;
439 uschar *auth_advertise_hosts = US"*";
440 auth_instance auth_defaults = {
441 .next = NULL,
442 .name = NULL,
443 .info = NULL,
444 .options_block = NULL,
445 .driver_name = NULL,
446 .advertise_condition = NULL,
447 .client_condition = NULL,
448 .public_name = NULL,
449 .set_id = NULL,
450 .set_client_id = NULL,
451 .mail_auth_condition = NULL,
452 .server_debug_string = NULL,
453 .server_condition = NULL,
454 .client = FALSE,
455 .server = FALSE,
456 .advertised = FALSE
457 };
458
459 uschar *auth_defer_msg = US"reason not recorded";
460 uschar *auth_defer_user_msg = US"";
461 uschar *auth_vars[AUTH_VARS];
462 int auto_thaw = 0;
463 #ifdef WITH_CONTENT_SCAN
464 BOOL av_failed = FALSE;
465 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
466 #endif
467
468 BOOL background_daemon = TRUE;
469
470 #if BASE_62 == 62
471 uschar *base62_chars=
472 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
473 #else
474 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
475 #endif
476
477 uschar *bi_command = NULL;
478 uschar *big_buffer = NULL;
479 int big_buffer_size = BIG_BUFFER_SIZE;
480 #ifdef EXPERIMENTAL_BRIGHTMAIL
481 uschar *bmi_alt_location = NULL;
482 uschar *bmi_base64_tracker_verdict = NULL;
483 uschar *bmi_base64_verdict = NULL;
484 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
485 int bmi_deliver = 1;
486 int bmi_run = 0;
487 uschar *bmi_verdicts = NULL;
488 #endif
489 int bsmtp_transaction_linecount = 0;
490 int body_8bitmime = 0;
491 int body_linecount = 0;
492 int body_zerocount = 0;
493 uschar *bounce_message_file = NULL;
494 uschar *bounce_message_text = NULL;
495 uschar *bounce_recipient = NULL;
496 BOOL bounce_return_body = TRUE;
497 int bounce_return_linesize_limit = 998;
498 BOOL bounce_return_message = TRUE;
499 int bounce_return_size_limit = 100*1024;
500 uschar *bounce_sender_authentication = NULL;
501
502 uschar *callout_address = NULL;
503 int callout_cache_domain_positive_expire = 7*24*60*60;
504 int callout_cache_domain_negative_expire = 3*60*60;
505 int callout_cache_positive_expire = 24*60*60;
506 int callout_cache_negative_expire = 2*60*60;
507 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
508 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
509 int check_log_inodes = 100;
510 int check_log_space = 10*1024; /* 10K Kbyte == 10MB */
511 BOOL check_rfc2047_length = TRUE;
512 int check_spool_inodes = 100;
513 int check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
514
515 uschar *chunking_advertise_hosts = US"*";
516 unsigned chunking_datasize = 0;
517 unsigned chunking_data_left = 0;
518 BOOL chunking_offered = FALSE;
519 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
520 const pcre *regex_CHUNKING = NULL;
521
522 uschar *client_authenticator = NULL;
523 uschar *client_authenticated_id = NULL;
524 uschar *client_authenticated_sender = NULL;
525 int clmacro_count = 0;
526 uschar *clmacros[MAX_CLMACROS];
527 BOOL commandline_checks_require_admin = FALSE;
528 BOOL config_changed = FALSE;
529 FILE *config_file = NULL;
530 const uschar *config_filename = NULL;
531 int config_lineno = 0;
532 #ifdef CONFIGURE_GROUP
533 gid_t config_gid = CONFIGURE_GROUP;
534 #else
535 gid_t config_gid = 0;
536 #endif
537 uschar *config_main_filelist = US CONFIGURE_FILE
538 "\0<-----------Space to patch configure_filename->";
539 uschar *config_main_filename = NULL;
540 uschar *config_main_directory = NULL;
541
542 #ifdef CONFIGURE_OWNER
543 uid_t config_uid = CONFIGURE_OWNER;
544 #else
545 uid_t config_uid = 0;
546 #endif
547
548 int connection_max_messages= -1;
549 uschar *continue_proxy_cipher = NULL;
550 uschar *continue_hostname = NULL;
551 uschar *continue_host_address = NULL;
552 BOOL continue_more = FALSE;
553 int continue_sequence = 1;
554 uschar *continue_transport = NULL;
555
556 uschar *csa_status = NULL;
557 cut_t cutthrough = {
558 .callout_hold_only = FALSE, /* verify-only: normal delivery */
559 .delivery = FALSE, /* when to attempt */
560 .defer_pass = FALSE, /* on defer: spool locally */
561 .is_tls = FALSE, /* not a TLS conn yet */
562 .fd = -1, /* open connection */
563 .nrcpt = 0, /* number of addresses */
564 };
565
566 BOOL daemon_listen = FALSE;
567 uschar *daemon_smtp_port = US"smtp";
568 int daemon_startup_retries = 9;
569 int daemon_startup_sleep = 30;
570
571 #ifdef EXPERIMENTAL_DCC
572 BOOL dcc_direct_add_header = FALSE;
573 uschar *dcc_header = NULL;
574 uschar *dcc_result = NULL;
575 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
576 uschar *dccifd_options = US"header";
577 #endif
578
579 BOOL debug_daemon = FALSE;
580 int debug_fd = -1;
581 FILE *debug_file = NULL;
582 int debug_notall[] = {
583 Di_memory,
584 -1
585 };
586 bit_table debug_options[] = { /* must be in alphabetical order */
587 BIT_TABLE(D, acl),
588 BIT_TABLE(D, all),
589 BIT_TABLE(D, auth),
590 BIT_TABLE(D, deliver),
591 BIT_TABLE(D, dns),
592 BIT_TABLE(D, dnsbl),
593 BIT_TABLE(D, exec),
594 BIT_TABLE(D, expand),
595 BIT_TABLE(D, filter),
596 BIT_TABLE(D, hints_lookup),
597 BIT_TABLE(D, host_lookup),
598 BIT_TABLE(D, ident),
599 BIT_TABLE(D, interface),
600 BIT_TABLE(D, lists),
601 BIT_TABLE(D, load),
602 BIT_TABLE(D, local_scan),
603 BIT_TABLE(D, lookup),
604 BIT_TABLE(D, memory),
605 BIT_TABLE(D, pid),
606 BIT_TABLE(D, process_info),
607 BIT_TABLE(D, queue_run),
608 BIT_TABLE(D, receive),
609 BIT_TABLE(D, resolver),
610 BIT_TABLE(D, retry),
611 BIT_TABLE(D, rewrite),
612 BIT_TABLE(D, route),
613 BIT_TABLE(D, timestamp),
614 BIT_TABLE(D, tls),
615 BIT_TABLE(D, transport),
616 BIT_TABLE(D, uid),
617 BIT_TABLE(D, verify),
618 };
619 int debug_options_count = nelem(debug_options);
620
621 unsigned int debug_selector = 0;
622 BOOL debug_store = FALSE;
623 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
624 uschar *delay_warning_condition=
625 US"${if or {"
626 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
627 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
628 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
629 "} {no}{yes}}";
630 BOOL delivery_date_remove = TRUE;
631 uschar *deliver_address_data = NULL;
632 int deliver_datafile = -1;
633 const uschar *deliver_domain = NULL;
634 uschar *deliver_domain_data = NULL;
635 const uschar *deliver_domain_orig = NULL;
636 const uschar *deliver_domain_parent = NULL;
637 BOOL deliver_drop_privilege = FALSE;
638 BOOL deliver_firsttime = FALSE;
639 BOOL deliver_force = FALSE;
640 BOOL deliver_freeze = FALSE;
641 time_t deliver_frozen_at = 0;
642 uschar *deliver_home = NULL;
643 const uschar *deliver_host = NULL;
644 const uschar *deliver_host_address = NULL;
645 int deliver_host_port = 0;
646 uschar *deliver_in_buffer = NULL;
647 ino_t deliver_inode = 0;
648 uschar *deliver_localpart = NULL;
649 uschar *deliver_localpart_data = NULL;
650 uschar *deliver_localpart_orig = NULL;
651 uschar *deliver_localpart_parent = NULL;
652 uschar *deliver_localpart_prefix = NULL;
653 uschar *deliver_localpart_suffix = NULL;
654 BOOL deliver_force_thaw = FALSE;
655 BOOL deliver_manual_thaw = FALSE;
656 uschar *deliver_out_buffer = NULL;
657 int deliver_queue_load_max = -1;
658 address_item *deliver_recipients = NULL;
659 uschar *deliver_selectstring = NULL;
660 BOOL deliver_selectstring_regex = FALSE;
661 uschar *deliver_selectstring_sender = NULL;
662 BOOL deliver_selectstring_sender_regex = FALSE;
663 BOOL disable_callout_flush = FALSE;
664 BOOL disable_delay_flush = FALSE;
665 #ifdef ENABLE_DISABLE_FSYNC
666 BOOL disable_fsync = FALSE;
667 #endif
668 BOOL disable_ipv6 = FALSE;
669 BOOL disable_logging = FALSE;
670
671 #ifndef DISABLE_DKIM
672 unsigned dkim_collect_input = 0;
673 uschar *dkim_cur_signer = NULL;
674 BOOL dkim_disable_verify = FALSE;
675 int dkim_key_length = 0;
676 void *dkim_signatures = NULL;
677 uschar *dkim_signers = NULL;
678 uschar *dkim_signing_domain = NULL;
679 uschar *dkim_signing_selector = NULL;
680 uschar *dkim_verify_overall = NULL;
681 uschar *dkim_verify_signers = US"$dkim_signers";
682 uschar *dkim_verify_status = NULL;
683 uschar *dkim_verify_reason = NULL;
684 #endif
685 #ifdef EXPERIMENTAL_DMARC
686 BOOL dmarc_has_been_checked = FALSE;
687 uschar *dmarc_domain_policy = NULL;
688 uschar *dmarc_forensic_sender = NULL;
689 uschar *dmarc_history_file = NULL;
690 uschar *dmarc_status = NULL;
691 uschar *dmarc_status_text = NULL;
692 uschar *dmarc_tld_file = NULL;
693 uschar *dmarc_used_domain = NULL;
694 BOOL dmarc_disable_verify = FALSE;
695 BOOL dmarc_enable_forensic = FALSE;
696 #endif
697
698 uschar *dns_again_means_nonexist = NULL;
699 int dns_csa_search_limit = 5;
700 BOOL dns_csa_use_reverse = TRUE;
701 int dns_cname_loops = 1;
702 #ifdef SUPPORT_DANE
703 int dns_dane_ok = -1;
704 #endif
705 uschar *dns_ipv4_lookup = NULL;
706 int dns_retrans = 0;
707 int dns_retry = 0;
708 int dns_dnssec_ok = -1; /* <0 = not coerced */
709 uschar *dns_trust_aa = NULL;
710 int dns_use_edns0 = -1; /* <0 = not coerced */
711 uschar *dnslist_domain = NULL;
712 uschar *dnslist_matched = NULL;
713 uschar *dnslist_text = NULL;
714 uschar *dnslist_value = NULL;
715 tree_node *domainlist_anchor = NULL;
716 int domainlist_count = 0;
717 BOOL dont_deliver = FALSE;
718 BOOL dot_ends = TRUE;
719 BOOL drop_cr = FALSE; /* No longer used */
720 uschar *dsn_from = US DEFAULT_DSN_FROM;
721
722 BOOL enable_dollar_recipients = FALSE;
723 BOOL envelope_to_remove = TRUE;
724 int errno_quota = ERRNO_QUOTA;
725 uschar *errors_copy = NULL;
726 int error_handling = ERRORS_SENDER;
727 uschar *errors_reply_to = NULL;
728 int errors_sender_rc = EXIT_FAILURE;
729 #ifndef DISABLE_EVENT
730 uschar *event_action = NULL; /* expansion for delivery events */
731 uschar *event_data = NULL; /* auxiliary data variable for event */
732 int event_defer_errno = 0;
733 const uschar *event_name = NULL; /* event name variable */
734 #endif
735
736
737 gid_t exim_gid = EXIM_GID;
738 BOOL exim_gid_set = TRUE; /* This gid is always set */
739 uschar *exim_path = US BIN_DIRECTORY "/exim"
740 "\0<---------------Space to patch exim_path->";
741 uid_t exim_uid = EXIM_UID;
742 BOOL exim_uid_set = TRUE; /* This uid is always set */
743 int expand_level = 0; /* Nesting depth, indent for debug */
744 int expand_forbid = 0;
745 int expand_nlength[EXPAND_MAXN+1];
746 int expand_nmax = -1;
747 uschar *expand_nstring[EXPAND_MAXN+1];
748 BOOL expand_string_forcedfail = FALSE;
749 uschar *expand_string_message;
750 BOOL extract_addresses_remove_arguments = TRUE;
751 uschar *extra_local_interfaces = NULL;
752
753 int fake_response = OK;
754 uschar *fake_response_text = US"Your message has been rejected but is "
755 "being kept for evaluation.\nIf it was a "
756 "legitimate message, it may still be "
757 "delivered to the target recipient(s).";
758 int filter_n[FILTER_VARIABLE_COUNT];
759 BOOL filter_running = FALSE;
760 int filter_sn[FILTER_VARIABLE_COUNT];
761 int filter_test = FTEST_NONE;
762 uschar *filter_test_sfile = NULL;
763 uschar *filter_test_ufile = NULL;
764 uschar *filter_thisaddress = NULL;
765 int finduser_retries = 0;
766 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
767 uschar *freeze_tell = NULL;
768 uschar *freeze_tell_config = NULL;
769 uschar *fudged_queue_times = US"";
770
771 uschar *gecos_name = NULL;
772 uschar *gecos_pattern = NULL;
773 rewrite_rule *global_rewrite_rules = NULL;
774
775 volatile sig_atomic_t had_command_timeout = 0;
776 volatile sig_atomic_t had_command_sigterm = 0;
777 volatile sig_atomic_t had_data_timeout = 0;
778 volatile sig_atomic_t had_data_sigint = 0;
779 uschar *headers_charset = US HEADERS_CHARSET;
780 int header_insert_maxlen = 64 * 1024;
781 header_line *header_last = NULL;
782 header_line *header_list = NULL;
783 int header_maxsize = HEADER_MAXSIZE;
784 int header_line_maxsize = 0;
785
786 header_name header_names[] = {
787 /* name len allow_resent htype */
788 { US"bcc", 3, TRUE, htype_bcc },
789 { US"cc", 2, TRUE, htype_cc },
790 { US"date", 4, TRUE, htype_date },
791 { US"delivery-date", 13, FALSE, htype_delivery_date },
792 { US"envelope-to", 11, FALSE, htype_envelope_to },
793 { US"from", 4, TRUE, htype_from },
794 { US"message-id", 10, TRUE, htype_id },
795 { US"received", 8, FALSE, htype_received },
796 { US"reply-to", 8, FALSE, htype_reply_to },
797 { US"return-path", 11, FALSE, htype_return_path },
798 { US"sender", 6, TRUE, htype_sender },
799 { US"subject", 7, FALSE, htype_subject },
800 { US"to", 2, TRUE, htype_to }
801 };
802
803 int header_names_size = nelem(header_names);
804
805 BOOL header_rewritten = FALSE;
806 uschar *helo_accept_junk_hosts = NULL;
807 uschar *helo_allow_chars = US"";
808 uschar *helo_lookup_domains = US"@ : @[]";
809 uschar *helo_try_verify_hosts = NULL;
810 BOOL helo_verified = FALSE;
811 BOOL helo_verify_failed = FALSE;
812 uschar *helo_verify_hosts = NULL;
813 const uschar *hex_digits = CUS"0123456789abcdef";
814 uschar *hold_domains = NULL;
815 BOOL host_checking = FALSE;
816 BOOL host_checking_callout = FALSE;
817 uschar *host_data = NULL;
818 BOOL host_find_failed_syntax= FALSE;
819 uschar *host_lookup = NULL;
820 BOOL host_lookup_deferred = FALSE;
821 BOOL host_lookup_failed = FALSE;
822 uschar *host_lookup_order = US"bydns:byaddr";
823 uschar *host_lookup_msg = US"";
824 int host_number = 0;
825 uschar *host_number_string = NULL;
826 uschar *host_reject_connection = NULL;
827 tree_node *hostlist_anchor = NULL;
828 int hostlist_count = 0;
829 uschar *hosts_treat_as_local = NULL;
830 uschar *hosts_connection_nolog = NULL;
831
832 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
833 BOOL ignore_fromline_local = FALSE;
834 uschar *ignore_fromline_hosts = NULL;
835 BOOL inetd_wait_mode = FALSE;
836 int inetd_wait_timeout = -1;
837 uschar *initial_cwd = NULL;
838 uschar *interface_address = NULL;
839 int interface_port = -1;
840 BOOL is_inetd = FALSE;
841 uschar *iterate_item = NULL;
842
843 int journal_fd = -1;
844
845 uschar *keep_environment = NULL;
846
847 int keep_malformed = 4*24*60*60; /* 4 days */
848
849 uschar *eldap_dn = NULL;
850 int load_average = -2;
851 BOOL local_error_message = FALSE;
852 BOOL local_from_check = TRUE;
853 uschar *local_from_prefix = NULL;
854 uschar *local_from_suffix = NULL;
855
856 #if HAVE_IPV6
857 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
858 #else
859 uschar *local_interfaces = US"0.0.0.0";
860 #endif
861
862 #ifdef HAVE_LOCAL_SCAN
863 uschar *local_scan_data = NULL;
864 int local_scan_timeout = 5*60;
865 #endif
866 BOOL local_sender_retain = FALSE;
867 gid_t local_user_gid = (gid_t)(-1);
868 uid_t local_user_uid = (uid_t)(-1);
869
870 tree_node *localpartlist_anchor= NULL;
871 int localpartlist_count = 0;
872 uschar *log_buffer = NULL;
873
874 int log_default[] = { /* for initializing log_selector */
875 Li_acl_warn_skipped,
876 Li_connection_reject,
877 Li_delay_delivery,
878 Li_dkim,
879 Li_dnslist_defer,
880 Li_etrn,
881 Li_host_lookup_failed,
882 Li_lost_incoming_connection,
883 Li_outgoing_interface, /* see d_log_interface in deliver.c */
884 Li_queue_run,
885 Li_rejected_header,
886 Li_retry_defer,
887 Li_sender_verify_fail,
888 Li_size_reject,
889 Li_skip_delivery,
890 Li_smtp_confirmation,
891 Li_tls_certificate_verified,
892 Li_tls_cipher,
893 -1
894 };
895
896 uschar *log_file_path = US LOG_FILE_PATH
897 "\0<--------------Space to patch log_file_path->";
898
899 int log_notall[] = {
900 -1
901 };
902 bit_table log_options[] = { /* must be in alphabetical order */
903 BIT_TABLE(L, 8bitmime),
904 BIT_TABLE(L, acl_warn_skipped),
905 BIT_TABLE(L, address_rewrite),
906 BIT_TABLE(L, all),
907 BIT_TABLE(L, all_parents),
908 BIT_TABLE(L, arguments),
909 BIT_TABLE(L, connection_reject),
910 BIT_TABLE(L, delay_delivery),
911 BIT_TABLE(L, deliver_time),
912 BIT_TABLE(L, delivery_size),
913 #ifndef DISABLE_DKIM
914 BIT_TABLE(L, dkim),
915 BIT_TABLE(L, dkim_verbose),
916 #endif
917 BIT_TABLE(L, dnslist_defer),
918 BIT_TABLE(L, dnssec),
919 BIT_TABLE(L, etrn),
920 BIT_TABLE(L, host_lookup_failed),
921 BIT_TABLE(L, ident_timeout),
922 BIT_TABLE(L, incoming_interface),
923 BIT_TABLE(L, incoming_port),
924 BIT_TABLE(L, lost_incoming_connection),
925 BIT_TABLE(L, millisec),
926 BIT_TABLE(L, outgoing_interface),
927 BIT_TABLE(L, outgoing_port),
928 BIT_TABLE(L, pid),
929 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
930 BIT_TABLE(L, proxy),
931 #endif
932 BIT_TABLE(L, queue_run),
933 BIT_TABLE(L, queue_time),
934 BIT_TABLE(L, queue_time_overall),
935 BIT_TABLE(L, receive_time),
936 BIT_TABLE(L, received_recipients),
937 BIT_TABLE(L, received_sender),
938 BIT_TABLE(L, rejected_header),
939 { US"rejected_headers", Li_rejected_header },
940 BIT_TABLE(L, retry_defer),
941 BIT_TABLE(L, return_path_on_delivery),
942 BIT_TABLE(L, sender_on_delivery),
943 BIT_TABLE(L, sender_verify_fail),
944 BIT_TABLE(L, size_reject),
945 BIT_TABLE(L, skip_delivery),
946 BIT_TABLE(L, smtp_confirmation),
947 BIT_TABLE(L, smtp_connection),
948 BIT_TABLE(L, smtp_incomplete_transaction),
949 BIT_TABLE(L, smtp_mailauth),
950 BIT_TABLE(L, smtp_no_mail),
951 BIT_TABLE(L, smtp_protocol_error),
952 BIT_TABLE(L, smtp_syntax_error),
953 BIT_TABLE(L, subject),
954 BIT_TABLE(L, tls_certificate_verified),
955 BIT_TABLE(L, tls_cipher),
956 BIT_TABLE(L, tls_peerdn),
957 BIT_TABLE(L, tls_sni),
958 BIT_TABLE(L, unknown_in_list),
959 };
960 int log_options_count = nelem(log_options);
961
962 int log_reject_target = 0;
963 unsigned int log_selector[log_selector_size]; /* initialized in main() */
964 uschar *log_selector_string = NULL;
965 FILE *log_stderr = NULL;
966 BOOL log_testing_mode = FALSE;
967 BOOL log_timezone = FALSE;
968 uschar *login_sender_address = NULL;
969 uschar *lookup_dnssec_authenticated = NULL;
970 int lookup_open_max = 25;
971 uschar *lookup_value = NULL;
972
973 macro_item *macros_user = NULL;
974 uschar *mailstore_basename = NULL;
975 #ifdef WITH_CONTENT_SCAN
976 uschar *malware_name = NULL; /* Virus Name */
977 #endif
978 int max_received_linelength= 0;
979 int max_username_length = 0;
980 int message_age = 0;
981 uschar *message_body = NULL;
982 uschar *message_body_end = NULL;
983 BOOL message_body_newlines = FALSE;
984 int message_body_size = 0;
985 int message_body_visible = 500;
986 int message_ended = END_NOTSTARTED;
987 uschar *message_headers = NULL;
988 uschar *message_id;
989 uschar *message_id_domain = NULL;
990 uschar *message_id_text = NULL;
991 struct timeval message_id_tv = { 0, 0 };
992 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
993 uschar *message_id_external;
994 int message_linecount = 0;
995 BOOL message_logs = TRUE;
996 int message_size = 0;
997 uschar *message_size_limit = US"50M";
998 #ifdef SUPPORT_I18N
999 BOOL message_smtputf8 = FALSE;
1000 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1001 #endif
1002 uschar message_subdir[2] = { 0, 0 };
1003 uschar *message_reference = NULL;
1004
1005 /* MIME ACL expandables */
1006 #ifdef WITH_CONTENT_SCAN
1007 int mime_anomaly_level = 0;
1008 const uschar *mime_anomaly_text = NULL;
1009 uschar *mime_boundary = NULL;
1010 uschar *mime_charset = NULL;
1011 uschar *mime_content_description = NULL;
1012 uschar *mime_content_disposition = NULL;
1013 uschar *mime_content_id = NULL;
1014 unsigned int mime_content_size = 0;
1015 uschar *mime_content_transfer_encoding = NULL;
1016 uschar *mime_content_type = NULL;
1017 uschar *mime_decoded_filename = NULL;
1018 uschar *mime_filename = NULL;
1019 int mime_is_multipart = 0;
1020 int mime_is_coverletter = 0;
1021 int mime_is_rfc822 = 0;
1022 int mime_part_count = -1;
1023 #endif
1024
1025 BOOL mua_wrapper = FALSE;
1026
1027 uid_t *never_users = NULL;
1028 #ifdef WITH_CONTENT_SCAN
1029 BOOL no_mbox_unspool = FALSE;
1030 #endif
1031 BOOL no_multiline_responses = FALSE;
1032
1033 const int on = 1; /* for setsockopt */
1034 const int off = 0;
1035
1036 uid_t original_euid;
1037 gid_t originator_gid;
1038 uschar *originator_login = NULL;
1039 uschar *originator_name = NULL;
1040 uid_t originator_uid;
1041 uschar *override_local_interfaces = NULL;
1042 uschar *override_pid_file_path = NULL;
1043
1044 BOOL parse_allow_group = FALSE;
1045 BOOL parse_found_group = FALSE;
1046 uschar *percent_hack_domains = NULL;
1047 uschar *pid_file_path = US PID_FILE_PATH
1048 "\0<--------------Space to patch pid_file_path->";
1049 BOOL pipelining_enable = TRUE;
1050 uschar *pipelining_advertise_hosts = US"*";
1051 BOOL preserve_message_logs = FALSE;
1052 uschar *primary_hostname = NULL;
1053 BOOL print_topbitchars = FALSE;
1054 uschar process_info[PROCESS_INFO_SIZE];
1055 int process_info_len = 0;
1056 uschar *process_log_path = NULL;
1057 BOOL prod_requires_admin = TRUE;
1058
1059 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1060 uschar *hosts_proxy = US"";
1061 uschar *proxy_external_address = US"";
1062 int proxy_external_port = 0;
1063 uschar *proxy_local_address = US"";
1064 int proxy_local_port = 0;
1065 BOOL proxy_session = FALSE;
1066 BOOL proxy_session_failed = FALSE;
1067 #endif
1068
1069 uschar *prvscheck_address = NULL;
1070 uschar *prvscheck_keynum = NULL;
1071 uschar *prvscheck_result = NULL;
1072
1073
1074 const uschar *qualify_domain_recipient = NULL;
1075 uschar *qualify_domain_sender = NULL;
1076 BOOL queue_2stage = FALSE;
1077 uschar *queue_domains = NULL;
1078 int queue_interval = -1;
1079 BOOL queue_list_requires_admin = TRUE;
1080 uschar *queue_name = US"";
1081 BOOL queue_only = FALSE;
1082 uschar *queue_only_file = NULL;
1083 int queue_only_load = -1;
1084 BOOL queue_only_load_latch = TRUE;
1085 BOOL queue_only_override = TRUE;
1086 BOOL queue_only_policy = FALSE;
1087 BOOL queue_run_first_delivery = FALSE;
1088 BOOL queue_run_force = FALSE;
1089 BOOL queue_run_in_order = FALSE;
1090 BOOL queue_run_local = FALSE;
1091 uschar *queue_run_max = US"5";
1092 pid_t queue_run_pid = (pid_t)0;
1093 int queue_run_pipe = -1;
1094 BOOL queue_running = FALSE;
1095 BOOL queue_smtp = FALSE;
1096 uschar *queue_smtp_domains = NULL;
1097
1098 unsigned int random_seed = 0;
1099 tree_node *ratelimiters_cmd = NULL;
1100 tree_node *ratelimiters_conn = NULL;
1101 tree_node *ratelimiters_mail = NULL;
1102 uschar *raw_active_hostname = NULL;
1103 uschar *raw_sender = NULL;
1104 uschar **raw_recipients = NULL;
1105 int raw_recipients_count = 0;
1106
1107 int rcpt_count = 0;
1108 int rcpt_fail_count = 0;
1109 int rcpt_defer_count = 0;
1110 gid_t real_gid;
1111 uid_t real_uid;
1112 BOOL really_exim = TRUE;
1113 BOOL receive_call_bombout = FALSE;
1114 int receive_linecount = 0;
1115 int receive_messagecount = 0;
1116 int receive_timeout = 0;
1117 int received_count = 0;
1118 uschar *received_for = NULL;
1119
1120 /* This is the default text for Received headers generated by Exim. The
1121 date will be automatically added on the end. */
1122
1123 uschar *received_header_text = US
1124 "Received: "
1125 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1126 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1127 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1128 "by $primary_hostname "
1129 "${if def:received_protocol {with $received_protocol}} "
1130 #ifdef SUPPORT_TLS
1131 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1132 #endif
1133 "(Exim $version_number)\n\t"
1134 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1135 "id $message_exim_id"
1136 "${if def:received_for {\n\tfor $received_for}}"
1137 "\0<---------------Space to patch received_header_text->";
1138
1139 int received_headers_max = 30;
1140 uschar *received_protocol = NULL;
1141 struct timeval received_time = { 0, 0 };
1142 struct timeval received_time_taken = { 0, 0 };
1143 uschar *recipient_data = NULL;
1144 uschar *recipient_unqualified_hosts = NULL;
1145 uschar *recipient_verify_failure = NULL;
1146 int recipients_count = 0;
1147 BOOL recipients_discarded = FALSE;
1148 recipient_item *recipients_list = NULL;
1149 int recipients_list_max = 0;
1150 int recipients_max = 0;
1151 BOOL recipients_max_reject = FALSE;
1152 const pcre *regex_AUTH = NULL;
1153 const pcre *regex_check_dns_names = NULL;
1154 const pcre *regex_From = NULL;
1155 const pcre *regex_IGNOREQUOTA = NULL;
1156 const pcre *regex_PIPELINING = NULL;
1157 const pcre *regex_SIZE = NULL;
1158 const pcre *regex_ismsgid = NULL;
1159 const pcre *regex_smtp_code = NULL;
1160 uschar *regex_vars[REGEX_VARS];
1161 #ifdef WHITELIST_D_MACROS
1162 const pcre *regex_whitelisted_macro = NULL;
1163 #endif
1164 #ifdef WITH_CONTENT_SCAN
1165 uschar *regex_match_string = NULL;
1166 #endif
1167 int remote_delivery_count = 0;
1168 int remote_max_parallel = 2;
1169 uschar *remote_sort_domains = NULL;
1170 int retry_data_expire = 7*24*60*60;
1171 int retry_interval_max = 24*60*60;
1172 int retry_maximum_timeout = 0; /* set from retry config */
1173 retry_config *retries = NULL;
1174 uschar *return_path = NULL;
1175 BOOL return_path_remove = TRUE;
1176 int rewrite_existflags = 0;
1177 uschar *rfc1413_hosts = US"@[]";
1178 int rfc1413_query_timeout = 0;
1179 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1180 uid_t root_gid = ROOT_GID;
1181 uid_t root_uid = ROOT_UID;
1182
1183 router_instance *routers = NULL;
1184 router_instance router_defaults = {
1185 .next = NULL,
1186 .name = NULL,
1187 .info = NULL,
1188 .options_block = NULL,
1189 .driver_name = NULL,
1190
1191 .address_data = NULL,
1192 #ifdef EXPERIMENTAL_BRIGHTMAIL
1193 .bmi_rule = NULL,
1194 #endif
1195 .cannot_route_message = NULL,
1196 .condition = NULL,
1197 .current_directory = NULL,
1198 .debug_string = NULL,
1199 .domains = NULL,
1200 .errors_to = NULL,
1201 .expand_gid = NULL,
1202 .expand_uid = NULL,
1203 .expand_more = NULL,
1204 .expand_unseen = NULL,
1205 .extra_headers = NULL,
1206 .fallback_hosts = NULL,
1207 .home_directory = NULL,
1208 .ignore_target_hosts = NULL,
1209 .local_parts = NULL,
1210 .pass_router_name = NULL,
1211 .prefix = NULL,
1212 .redirect_router_name = NULL,
1213 .remove_headers = NULL,
1214 .require_files = NULL,
1215 .router_home_directory = NULL,
1216 .self = US"freeze",
1217 .senders = NULL,
1218 .suffix = NULL,
1219 .translate_ip_address = NULL,
1220 .transport_name = NULL,
1221
1222 .address_test = TRUE,
1223 #ifdef EXPERIMENTAL_BRIGHTMAIL
1224 .bmi_deliver_alternate = FALSE,
1225 .bmi_deliver_default = FALSE,
1226 .bmi_dont_deliver = FALSE,
1227 #endif
1228 .expn = TRUE,
1229 .caseful_local_part = FALSE,
1230 .check_local_user = FALSE,
1231 .disable_logging = FALSE,
1232 .fail_verify_recipient = FALSE,
1233 .fail_verify_sender = FALSE,
1234 .gid_set = FALSE,
1235 .initgroups = FALSE,
1236 .log_as_local = TRUE_UNSET,
1237 .more = TRUE,
1238 .pass_on_timeout = FALSE,
1239 .prefix_optional = FALSE,
1240 .repeat_use = TRUE,
1241 .retry_use_local_part = TRUE_UNSET,
1242 .same_domain_copy_routing = FALSE,
1243 .self_rewrite = FALSE,
1244 .suffix_optional = FALSE,
1245 .verify_only = FALSE,
1246 .verify_recipient = TRUE,
1247 .verify_sender = TRUE,
1248 .uid_set = FALSE,
1249 .unseen = FALSE,
1250 .dsn_lasthop = FALSE,
1251
1252 .self_code = self_freeze,
1253 .uid = (uid_t)(-1),
1254 .gid = (gid_t)(-1),
1255
1256 .fallback_hostlist = NULL,
1257 .transport = NULL,
1258 .pass_router = NULL,
1259 .redirect_router = NULL,
1260
1261 .dnssec = { NULL, NULL }, /* dnssec_domains {require,request} */
1262 };
1263
1264 uschar *router_name = NULL;
1265
1266 ip_address_item *running_interfaces = NULL;
1267 BOOL running_in_test_harness = FALSE;
1268
1269 /* This is a weird one. The following string gets patched in the binary by the
1270 script that sets up a copy of Exim for running in the test harness. It seems
1271 that compilers are now clever, and share constant strings if they can.
1272 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1273 make use of the end of this string in order to save space. So the patching then
1274 wrecks this. We defeat this optimization by adding some additional characters
1275 onto the end of the string. */
1276
1277 uschar *running_status = US">>>running<<<" "\0EXTRA";
1278
1279 int runrc = 0;
1280
1281 uschar *search_error_message = NULL;
1282 BOOL search_find_defer = FALSE;
1283 uschar *self_hostname = NULL;
1284 uschar *sender_address = NULL;
1285 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1286 uschar *sender_address_data = NULL;
1287 BOOL sender_address_forced = FALSE;
1288 uschar *sender_address_unrewritten = NULL;
1289 uschar *sender_data = NULL;
1290 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1291 uschar *sender_fullhost = NULL;
1292 BOOL sender_helo_dnssec = FALSE;
1293 uschar *sender_helo_name = NULL;
1294 uschar **sender_host_aliases = &no_aliases;
1295 uschar *sender_host_address = NULL;
1296 uschar *sender_host_authenticated = NULL;
1297 uschar *sender_host_auth_pubname = NULL;
1298 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1299 BOOL sender_host_dnssec = FALSE;
1300 uschar *sender_host_name = NULL;
1301 int sender_host_port = 0;
1302 BOOL sender_host_notsocket = FALSE;
1303 BOOL sender_host_unknown = FALSE;
1304 uschar *sender_ident = NULL;
1305 BOOL sender_local = FALSE;
1306 BOOL sender_name_forced = FALSE;
1307 uschar *sender_rate = NULL;
1308 uschar *sender_rate_limit = NULL;
1309 uschar *sender_rate_period = NULL;
1310 uschar *sender_rcvhost = NULL;
1311 BOOL sender_set_untrusted = FALSE;
1312 uschar *sender_unqualified_hosts = NULL;
1313 uschar *sender_verify_failure = NULL;
1314 address_item *sender_verified_list = NULL;
1315 address_item *sender_verified_failed = NULL;
1316 int sender_verified_rc = -1;
1317 BOOL sender_verified_responded = FALSE;
1318 uschar *sending_ip_address = NULL;
1319 int sending_port = -1;
1320 SIGNAL_BOOL sigalrm_seen = FALSE;
1321 uschar **sighup_argv = NULL;
1322 int slow_lookup_log = 0; /* millisecs, zero disables */
1323 int smtp_accept_count = 0;
1324 BOOL smtp_accept_keepalive = TRUE;
1325 int smtp_accept_max = 20;
1326 int smtp_accept_max_nonmail= 10;
1327 uschar *smtp_accept_max_nonmail_hosts = US"*";
1328 int smtp_accept_max_per_connection = 1000;
1329 uschar *smtp_accept_max_per_host = NULL;
1330 int smtp_accept_queue = 0;
1331 int smtp_accept_queue_per_connection = 10;
1332 int smtp_accept_reserve = 0;
1333 uschar *smtp_active_hostname = NULL;
1334 BOOL smtp_authenticated = FALSE;
1335 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1336 "Exim $version_number $tod_full"
1337 "\0<---------------Space to patch smtp_banner->";
1338 BOOL smtp_batched_input = FALSE;
1339 BOOL smtp_check_spool_space = TRUE;
1340 int smtp_ch_index = 0;
1341 uschar *smtp_cmd_argument = NULL;
1342 uschar *smtp_cmd_buffer = NULL;
1343 struct timeval smtp_connection_start = {0,0};
1344 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1345 int smtp_connect_backlog = 20;
1346 double smtp_delay_mail = 0.0;
1347 double smtp_delay_rcpt = 0.0;
1348 BOOL smtp_enforce_sync = TRUE;
1349 FILE *smtp_in = NULL;
1350 BOOL smtp_input = FALSE;
1351 int smtp_load_reserve = -1;
1352 int smtp_mailcmd_count = 0;
1353 FILE *smtp_out = NULL;
1354 uschar *smtp_etrn_command = NULL;
1355 BOOL smtp_etrn_serialize = TRUE;
1356 int smtp_max_synprot_errors= 3;
1357 int smtp_max_unknown_commands = 3;
1358 uschar *smtp_notquit_reason = NULL;
1359 uschar *smtp_ratelimit_hosts = NULL;
1360 uschar *smtp_ratelimit_mail = NULL;
1361 uschar *smtp_ratelimit_rcpt = NULL;
1362 uschar *smtp_read_error = US"";
1363 int smtp_receive_timeout = 5*60;
1364 uschar *smtp_receive_timeout_s = NULL;
1365 uschar *smtp_reserve_hosts = NULL;
1366 BOOL smtp_return_error_details = FALSE;
1367 int smtp_rlm_base = 0;
1368 double smtp_rlm_factor = 0.0;
1369 int smtp_rlm_limit = 0;
1370 int smtp_rlm_threshold = INT_MAX;
1371 int smtp_rlr_base = 0;
1372 double smtp_rlr_factor = 0.0;
1373 int smtp_rlr_limit = 0;
1374 int smtp_rlr_threshold = INT_MAX;
1375 unsigned smtp_peer_options = 0;
1376 unsigned smtp_peer_options_wrap= 0;
1377 #ifdef SUPPORT_I18N
1378 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1379 #endif
1380
1381 #ifdef WITH_CONTENT_SCAN
1382 uschar *spamd_address = US"127.0.0.1 783";
1383 uschar *spam_bar = NULL;
1384 uschar *spam_report = NULL;
1385 uschar *spam_action = NULL;
1386 uschar *spam_score = NULL;
1387 uschar *spam_score_int = NULL;
1388 #endif
1389 #ifdef SUPPORT_SPF
1390 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1391 uschar *spf_header_comment = NULL;
1392 uschar *spf_received = NULL;
1393 uschar *spf_result = NULL;
1394 BOOL spf_result_guessed = FALSE;
1395 uschar *spf_smtp_comment = NULL;
1396 #endif
1397
1398 BOOL split_spool_directory = FALSE;
1399 FILE *spool_data_file = NULL;
1400 uschar *spool_directory = US SPOOL_DIRECTORY
1401 "\0<--------------Space to patch spool_directory->";
1402 BOOL spool_file_wireformat = FALSE;
1403 BOOL spool_wireformat = FALSE;
1404 #ifdef EXPERIMENTAL_SRS
1405 uschar *srs_config = NULL;
1406 uschar *srs_db_address = NULL;
1407 uschar *srs_db_key = NULL;
1408 int srs_hashlength = 6;
1409 int srs_hashmin = -1;
1410 int srs_maxage = 31;
1411 uschar *srs_orig_recipient = NULL;
1412 uschar *srs_orig_sender = NULL;
1413 uschar *srs_recipient = NULL;
1414 uschar *srs_secrets = NULL;
1415 uschar *srs_status = NULL;
1416 BOOL srs_usehash = TRUE;
1417 BOOL srs_usetimestamp = TRUE;
1418 #endif
1419 BOOL strict_acl_vars = FALSE;
1420 int string_datestamp_offset= -1;
1421 int string_datestamp_length= 0;
1422 int string_datestamp_type = -1;
1423 BOOL strip_excess_angle_brackets = FALSE;
1424 BOOL strip_trailing_dot = FALSE;
1425 uschar *submission_domain = NULL;
1426 BOOL submission_mode = FALSE;
1427 uschar *submission_name = NULL;
1428 BOOL suppress_local_fixups = FALSE;
1429 BOOL suppress_local_fixups_default = FALSE;
1430 BOOL synchronous_delivery = FALSE;
1431 BOOL syslog_duplication = TRUE;
1432 int syslog_facility = LOG_MAIL;
1433 BOOL syslog_pid = TRUE;
1434 uschar *syslog_processname = US"exim";
1435 BOOL syslog_timestamp = TRUE;
1436 uschar *system_filter = NULL;
1437
1438 uschar *system_filter_directory_transport = NULL;
1439 uschar *system_filter_file_transport = NULL;
1440 uschar *system_filter_pipe_transport = NULL;
1441 uschar *system_filter_reply_transport = NULL;
1442
1443 gid_t system_filter_gid = 0;
1444 BOOL system_filter_gid_set = FALSE;
1445 uid_t system_filter_uid = (uid_t)-1;
1446 BOOL system_filter_uid_set = FALSE;
1447 BOOL system_filtering = FALSE;
1448
1449 BOOL tcp_fastopen_ok = FALSE;
1450 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1451 BOOL tcp_in_fastopen = FALSE;
1452 BOOL tcp_in_fastopen_logged = FALSE;
1453 BOOL tcp_nodelay = TRUE;
1454 int tcp_out_fastopen = 0;
1455 BOOL tcp_out_fastopen_logged= FALSE;
1456 #ifdef USE_TCP_WRAPPERS
1457 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1458 #endif
1459 int test_harness_load_avg = 0;
1460 int thismessage_size_limit = 0;
1461 int timeout_frozen_after = 0;
1462 BOOL timestamps_utc = FALSE;
1463
1464 transport_instance *transports = NULL;
1465
1466 transport_instance transport_defaults = {
1467 .next = NULL,
1468 .name = NULL,
1469 .info = NULL,
1470 .options_block = NULL,
1471 .driver_name = NULL,
1472 .setup = NULL,
1473 .batch_max = 1,
1474 .batch_id = NULL,
1475 .home_dir = NULL,
1476 .current_dir = NULL,
1477 .expand_multi_domain = NULL,
1478 .multi_domain = TRUE,
1479 .overrides_hosts = FALSE,
1480 .max_addresses = 100,
1481 .connection_max_messages = 500,
1482 .deliver_as_creator = FALSE,
1483 .disable_logging = FALSE,
1484 .initgroups = FALSE,
1485 .uid_set = FALSE,
1486 .gid_set = FALSE,
1487 .uid = (uid_t)(-1),
1488 .gid = (gid_t)(-1),
1489 .expand_uid = NULL,
1490 .expand_gid = NULL,
1491 .warn_message = NULL,
1492 .shadow = NULL,
1493 .shadow_condition = NULL,
1494 .filter_command = NULL,
1495 .add_headers = NULL,
1496 .remove_headers = NULL,
1497 .return_path = NULL,
1498 .debug_string = NULL,
1499 .max_parallel = NULL,
1500 .message_size_limit = NULL,
1501 .headers_rewrite = NULL,
1502 .rewrite_rules = NULL,
1503 .rewrite_existflags = 0,
1504 .filter_timeout = 300,
1505 .body_only = FALSE,
1506 .delivery_date_add = FALSE,
1507 .envelope_to_add = FALSE,
1508 .headers_only = FALSE,
1509 .rcpt_include_affixes = FALSE,
1510 .return_path_add = FALSE,
1511 .return_output = FALSE,
1512 .return_fail_output = FALSE,
1513 .log_output = FALSE,
1514 .log_fail_output = FALSE,
1515 .log_defer_output = FALSE,
1516 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1517 1 nor 0 so can detect unset */
1518 #ifndef DISABLE_EVENT
1519 .event_action = NULL
1520 #endif
1521 };
1522
1523 int transport_count;
1524 uschar *transport_name = NULL;
1525 int transport_newlines;
1526 const uschar **transport_filter_argv = NULL;
1527 int transport_filter_timeout;
1528 BOOL transport_filter_timed_out = FALSE;
1529 int transport_write_timeout= 0;
1530
1531 tree_node *tree_dns_fails = NULL;
1532 tree_node *tree_duplicates = NULL;
1533 tree_node *tree_nonrecipients = NULL;
1534 tree_node *tree_unusable = NULL;
1535
1536 BOOL trusted_caller = FALSE;
1537 BOOL trusted_config = TRUE;
1538 gid_t *trusted_groups = NULL;
1539 uid_t *trusted_users = NULL;
1540 uschar *timezone_string = US TIMEZONE_DEFAULT;
1541
1542 uschar *unknown_login = NULL;
1543 uschar *unknown_username = NULL;
1544 uschar *untrusted_set_sender = NULL;
1545
1546 /* A regex for matching a "From_" line in an incoming message, in the form
1547
1548 From ph10 Fri Jan 5 12:35 GMT 1996
1549
1550 which the "mail" commands send to the MTA (undocumented, of course), or in
1551 the form
1552
1553 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1554
1555 which is apparently used by some UUCPs, despite it not being in RFC 976.
1556 Because of variations in time formats, just match up to the minutes. That
1557 should be sufficient. Examples have been seen of time fields like 12:1:03,
1558 so just require one digit for hours and minutes. The weekday is also absent
1559 in some forms. */
1560
1561 uschar *uucp_from_pattern = US
1562 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1563 "(?:" /* Non-extracting bracket */
1564 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1565 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1566 ")" /* End alternation */
1567 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1568
1569 uschar *uucp_from_sender = US"$1";
1570
1571 uschar *verify_mode = NULL;
1572 uschar *version_copyright =
1573 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1574 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1575 uschar *version_date = US"?";
1576 uschar *version_cnumber = US"????";
1577 uschar *version_string = US"?";
1578
1579 uschar *warn_message_file = NULL;
1580 int warning_count = 0;
1581 uschar *warnmsg_delay = NULL;
1582 uschar *warnmsg_recipients = NULL;
1583 BOOL write_rejectlog = TRUE;
1584
1585
1586 /* End of globals.c */
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