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f16e19bc534f8851742334eb45fb5ebd65db300a
[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 /* all other elements zero */
107 };
108 tls_support tls_out = {
109 .active = {.sock = -1},
110 /* all other elements zero */
111 };
112
113 uschar *dsn_envid = NULL;
114 int dsn_ret = 0;
115 const pcre *regex_DSN = NULL;
116 uschar *dsn_advertise_hosts = NULL;
117
118 #ifndef DISABLE_TLS
119 BOOL gnutls_compat_mode = FALSE;
120 BOOL gnutls_allow_auto_pkcs11 = FALSE;
121 uschar *openssl_options = NULL;
122 const pcre *regex_STARTTLS = NULL;
123 uschar *tls_advertise_hosts = US"*";
124 uschar *tls_certificate = NULL;
125 uschar *tls_crl = NULL;
126 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
127 that's the interop problem which has been observed: GnuTLS suggesting a higher
128 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
129 int tls_dh_max_bits = 2236;
130 uschar *tls_dhparam = NULL;
131 uschar *tls_eccurve = US"auto";
132 # ifndef DISABLE_OCSP
133 uschar *tls_ocsp_file = NULL;
134 # endif
135 uschar *tls_privatekey = NULL;
136 BOOL tls_remember_esmtp = FALSE;
137 uschar *tls_require_ciphers = NULL;
138 # ifdef EXPERIMENTAL_TLS_RESUME
139 uschar *tls_resumption_hosts = NULL;
140 # endif
141 uschar *tls_try_verify_hosts = NULL;
142 uschar *tls_verify_certificates= US"system";
143 uschar *tls_verify_hosts = NULL;
144 #else /*DISABLE_TLS*/
145 uschar *tls_advertise_hosts = NULL;
146 #endif
147
148 #ifndef DISABLE_PRDR
149 /* Per Recipient Data Response variables */
150 BOOL prdr_enable = FALSE;
151 BOOL prdr_requested = FALSE;
152 const pcre *regex_PRDR = NULL;
153 #endif
154
155 #ifdef SUPPORT_I18N
156 const pcre *regex_UTF8 = NULL;
157 #endif
158
159 /* Input-reading functions for messages, so we can use special ones for
160 incoming TCP/IP. The defaults use stdin. We never need these for any
161 stand-alone tests. */
162
163 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
164 int (*lwr_receive_getc)(unsigned) = stdin_getc;
165 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
166 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
167 int (*receive_getc)(unsigned) = stdin_getc;
168 uschar * (*receive_getbuf)(unsigned *) = NULL;
169 void (*receive_get_cache)(void)= NULL;
170 int (*receive_ungetc)(int) = stdin_ungetc;
171 int (*receive_feof)(void) = stdin_feof;
172 int (*receive_ferror)(void) = stdin_ferror;
173 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
174 #endif
175
176
177 /* List of per-address expansion variables for clearing and saving/restoring
178 when verifying one address while routing/verifying another. We have to have
179 the size explicit, because it is referenced from more than one module. */
180
181 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
182 CUSS &deliver_address_data,
183 CUSS &deliver_domain,
184 CUSS &deliver_domain_data,
185 CUSS &deliver_domain_orig,
186 CUSS &deliver_domain_parent,
187 CUSS &deliver_localpart,
188 CUSS &deliver_localpart_data,
189 CUSS &deliver_localpart_orig,
190 CUSS &deliver_localpart_parent,
191 CUSS &deliver_localpart_prefix,
192 CUSS &deliver_localpart_suffix,
193 CUSS (uschar **)(&deliver_recipients),
194 CUSS &deliver_host,
195 CUSS &deliver_home,
196 CUSS &address_file,
197 CUSS &address_pipe,
198 CUSS &self_hostname,
199 NULL };
200
201 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
202
203 /******************************************************************************/
204 /* General global variables. Boolean flags are done as a group
205 so that only one bit each is needed, packed, for all those we never
206 need to take a pointer - and only a char for the rest.
207 This means a struct, unfortunately since it clutters the sourcecode. */
208
209 struct global_flags f =
210 {
211 .acl_temp_details = FALSE,
212 .active_local_from_check = FALSE,
213 .active_local_sender_retain = FALSE,
214 .address_test_mode = FALSE,
215 .admin_user = FALSE,
216 .allow_auth_unadvertised= FALSE,
217 .allow_unqualified_recipient = TRUE, /* For local messages */
218 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
219 .authentication_local = FALSE,
220
221 .background_daemon = TRUE,
222
223 .chunking_offered = FALSE,
224 .config_changed = FALSE,
225 .continue_more = FALSE,
226
227 .daemon_listen = FALSE,
228 .debug_daemon = FALSE,
229 .deliver_firsttime = FALSE,
230 .deliver_force = FALSE,
231 .deliver_freeze = FALSE,
232 .deliver_force_thaw = FALSE,
233 .deliver_manual_thaw = FALSE,
234 .deliver_selectstring_regex = FALSE,
235 .deliver_selectstring_sender_regex = FALSE,
236 .disable_callout_flush = FALSE,
237 .disable_delay_flush = FALSE,
238 .disable_logging = FALSE,
239 #ifndef DISABLE_DKIM
240 .dkim_disable_verify = FALSE,
241 .dkim_init_done = FALSE,
242 #endif
243 #ifdef SUPPORT_DMARC
244 .dmarc_has_been_checked = FALSE,
245 .dmarc_disable_verify = FALSE,
246 .dmarc_enable_forensic = FALSE,
247 #endif
248 .dont_deliver = FALSE,
249 .dot_ends = TRUE,
250
251 .enable_dollar_recipients = FALSE,
252 .expand_string_forcedfail = FALSE,
253
254 .filter_running = FALSE,
255
256 .header_rewritten = FALSE,
257 .helo_verified = FALSE,
258 .helo_verify_failed = FALSE,
259 .host_checking_callout = FALSE,
260 .host_find_failed_syntax= FALSE,
261
262 .inetd_wait_mode = FALSE,
263 .is_inetd = FALSE,
264
265 .local_error_message = FALSE,
266 .log_testing_mode = FALSE,
267
268 #ifdef WITH_CONTENT_SCAN
269 .no_mbox_unspool = FALSE,
270 #endif
271 .no_multiline_responses = FALSE,
272
273 .parse_allow_group = FALSE,
274 .parse_found_group = FALSE,
275 .pipelining_enable = TRUE,
276 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
277 .proxy_session_failed = FALSE,
278 #endif
279
280 .queue_2stage = FALSE,
281 .queue_only_policy = FALSE,
282 .queue_run_first_delivery = FALSE,
283 .queue_run_force = FALSE,
284 .queue_run_local = FALSE,
285 .queue_running = FALSE,
286 .queue_smtp = FALSE,
287
288 .really_exim = TRUE,
289 .receive_call_bombout = FALSE,
290 .recipients_discarded = FALSE,
291 .running_in_test_harness = FALSE,
292
293 .search_find_defer = FALSE,
294 .sender_address_forced = FALSE,
295 .sender_host_notsocket = FALSE,
296 .sender_host_unknown = FALSE,
297 .sender_local = FALSE,
298 .sender_name_forced = FALSE,
299 .sender_set_untrusted = FALSE,
300 .smtp_authenticated = FALSE,
301 #ifndef DISABLE_PIPE_CONNECT
302 .smtp_in_early_pipe_advertised = FALSE,
303 .smtp_in_early_pipe_no_auth = FALSE,
304 .smtp_in_early_pipe_used = FALSE,
305 #endif
306 .smtp_in_pipelining_advertised = FALSE,
307 .smtp_in_pipelining_used = FALSE,
308 .spool_file_wireformat = FALSE,
309 .submission_mode = FALSE,
310 .suppress_local_fixups = FALSE,
311 .suppress_local_fixups_default = FALSE,
312 .synchronous_delivery = FALSE,
313 .system_filtering = FALSE,
314
315 .taint_check_slow = FALSE,
316 .tcp_fastopen_ok = FALSE,
317 .tcp_in_fastopen = FALSE,
318 .tcp_in_fastopen_data = FALSE,
319 .tcp_in_fastopen_logged = FALSE,
320 .tcp_out_fastopen_logged= FALSE,
321 .timestamps_utc = FALSE,
322 .transport_filter_timed_out = FALSE,
323 .trusted_caller = FALSE,
324 .trusted_config = TRUE,
325 };
326
327 /******************************************************************************/
328 /* These are the flags which are either variables or mainsection options,
329 so an address is needed for access, or are exported to local_scan. */
330
331 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
332 BOOL allow_domain_literals = FALSE;
333 BOOL allow_mx_to_ip = FALSE;
334 BOOL allow_utf8_domains = FALSE;
335 BOOL authentication_failed = FALSE;
336
337 BOOL bounce_return_body = TRUE;
338 BOOL bounce_return_message = TRUE;
339 BOOL check_rfc2047_length = TRUE;
340 BOOL commandline_checks_require_admin = FALSE;
341
342 #ifdef EXPERIMENTAL_DCC
343 BOOL dcc_direct_add_header = FALSE;
344 #endif
345 BOOL debug_store = FALSE;
346 BOOL delivery_date_remove = TRUE;
347 BOOL deliver_drop_privilege = FALSE;
348 #ifdef ENABLE_DISABLE_FSYNC
349 BOOL disable_fsync = FALSE;
350 #endif
351 BOOL disable_ipv6 = FALSE;
352 BOOL dns_csa_use_reverse = TRUE;
353 BOOL drop_cr = FALSE; /* No longer used */
354
355 BOOL envelope_to_remove = TRUE;
356 BOOL exim_gid_set = TRUE; /* This gid is always set */
357 BOOL exim_uid_set = TRUE; /* This uid is always set */
358 BOOL extract_addresses_remove_arguments = TRUE;
359
360 BOOL host_checking = FALSE;
361 BOOL host_lookup_deferred = FALSE;
362 BOOL host_lookup_failed = FALSE;
363 BOOL ignore_fromline_local = FALSE;
364
365 BOOL local_from_check = TRUE;
366 BOOL local_sender_retain = FALSE;
367 BOOL log_timezone = FALSE;
368 BOOL message_body_newlines = FALSE;
369 BOOL message_logs = TRUE;
370 #ifdef SUPPORT_I18N
371 BOOL message_smtputf8 = FALSE;
372 #endif
373 BOOL mua_wrapper = FALSE;
374
375 BOOL preserve_message_logs = FALSE;
376 BOOL print_topbitchars = FALSE;
377 BOOL prod_requires_admin = TRUE;
378 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
379 BOOL proxy_session = FALSE;
380 #endif
381
382 BOOL queue_list_requires_admin = TRUE;
383 BOOL queue_only = FALSE;
384 BOOL queue_only_load_latch = TRUE;
385 BOOL queue_only_override = TRUE;
386 BOOL queue_run_in_order = FALSE;
387 BOOL recipients_max_reject = FALSE;
388 BOOL return_path_remove = TRUE;
389
390 BOOL smtp_batched_input = FALSE;
391 BOOL sender_helo_dnssec = FALSE;
392 BOOL sender_host_dnssec = FALSE;
393 BOOL smtp_accept_keepalive = TRUE;
394 BOOL smtp_check_spool_space = TRUE;
395 BOOL smtp_enforce_sync = TRUE;
396 BOOL smtp_etrn_serialize = TRUE;
397 BOOL smtp_input = FALSE;
398 BOOL smtp_return_error_details = FALSE;
399 #ifdef SUPPORT_SPF
400 BOOL spf_result_guessed = FALSE;
401 #endif
402 BOOL split_spool_directory = FALSE;
403 BOOL spool_wireformat = FALSE;
404 #ifdef EXPERIMENTAL_SRS
405 BOOL srs_usehash = TRUE;
406 BOOL srs_usetimestamp = TRUE;
407 #endif
408 BOOL strict_acl_vars = FALSE;
409 BOOL strip_excess_angle_brackets = FALSE;
410 BOOL strip_trailing_dot = FALSE;
411 BOOL syslog_duplication = TRUE;
412 BOOL syslog_pid = TRUE;
413 BOOL syslog_timestamp = TRUE;
414 BOOL system_filter_gid_set = FALSE;
415 BOOL system_filter_uid_set = FALSE;
416
417 BOOL tcp_nodelay = TRUE;
418 BOOL write_rejectlog = TRUE;
419
420 /******************************************************************************/
421
422 header_line *acl_added_headers = NULL;
423 tree_node *acl_anchor = NULL;
424 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
425 NULL, NULL, NULL, NULL};
426 int acl_narg = 0;
427
428 int acl_level = 0;
429
430 uschar *acl_not_smtp = NULL;
431 #ifdef WITH_CONTENT_SCAN
432 uschar *acl_not_smtp_mime = NULL;
433 #endif
434 uschar *acl_not_smtp_start = NULL;
435 uschar *acl_removed_headers = NULL;
436 uschar *acl_smtp_auth = NULL;
437 uschar *acl_smtp_connect = NULL;
438 uschar *acl_smtp_data = NULL;
439 #ifndef DISABLE_PRDR
440 uschar *acl_smtp_data_prdr = US"accept";
441 #endif
442 #ifndef DISABLE_DKIM
443 uschar *acl_smtp_dkim = NULL;
444 #endif
445 uschar *acl_smtp_etrn = NULL;
446 uschar *acl_smtp_expn = NULL;
447 uschar *acl_smtp_helo = NULL;
448 uschar *acl_smtp_mail = NULL;
449 uschar *acl_smtp_mailauth = NULL;
450 #ifdef WITH_CONTENT_SCAN
451 uschar *acl_smtp_mime = NULL;
452 #endif
453 uschar *acl_smtp_notquit = NULL;
454 uschar *acl_smtp_predata = NULL;
455 uschar *acl_smtp_quit = NULL;
456 uschar *acl_smtp_rcpt = NULL;
457 uschar *acl_smtp_starttls = NULL;
458 uschar *acl_smtp_vrfy = NULL;
459
460 tree_node *acl_var_c = NULL;
461 tree_node *acl_var_m = NULL;
462 uschar *acl_verify_message = NULL;
463 string_item *acl_warn_logged = NULL;
464
465 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
466 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
467
468 uschar *acl_wherenames[] = { US"RCPT",
469 US"MAIL",
470 US"PREDATA",
471 US"MIME",
472 US"DKIM",
473 US"DATA",
474 #ifndef DISABLE_PRDR
475 US"PRDR",
476 #endif
477 US"non-SMTP",
478 US"AUTH",
479 US"connection",
480 US"ETRN",
481 US"EXPN",
482 US"EHLO or HELO",
483 US"MAILAUTH",
484 US"non-SMTP-start",
485 US"NOTQUIT",
486 US"QUIT",
487 US"STARTTLS",
488 US"VRFY",
489 US"delivery",
490 US"unknown"
491 };
492
493 uschar *acl_wherecodes[] = { US"550", /* RCPT */
494 US"550", /* MAIL */
495 US"550", /* PREDATA */
496 US"550", /* MIME */
497 US"550", /* DKIM */
498 US"550", /* DATA */
499 #ifndef DISABLE_PRDR
500 US"550", /* RCPT PRDR */
501 #endif
502 US"0", /* not SMTP; not relevant */
503 US"503", /* AUTH */
504 US"550", /* connect */
505 US"458", /* ETRN */
506 US"550", /* EXPN */
507 US"550", /* HELO/EHLO */
508 US"0", /* MAILAUTH; not relevant */
509 US"0", /* not SMTP; not relevant */
510 US"0", /* NOTQUIT; not relevant */
511 US"0", /* QUIT; not relevant */
512 US"550", /* STARTTLS */
513 US"252", /* VRFY */
514 US"0", /* delivery; not relevant */
515 US"0" /* unknown; not relevant */
516 };
517
518 uschar *add_environment = NULL;
519 address_item *addr_duplicate = NULL;
520
521 address_item address_defaults = {
522 .next = NULL,
523 .parent = NULL,
524 .first = NULL,
525 .dupof = NULL,
526 .start_router = NULL,
527 .router = NULL,
528 .transport = NULL,
529 .host_list = NULL,
530 .host_used = NULL,
531 .fallback_hosts = NULL,
532 .reply = NULL,
533 .retries = NULL,
534 .address = NULL,
535 .unique = NULL,
536 .cc_local_part = NULL,
537 .lc_local_part = NULL,
538 .local_part = NULL,
539 .prefix = NULL,
540 .suffix = NULL,
541 .domain = NULL,
542 .address_retry_key = NULL,
543 .domain_retry_key = NULL,
544 .current_dir = NULL,
545 .home_dir = NULL,
546 .message = NULL,
547 .user_message = NULL,
548 .onetime_parent = NULL,
549 .pipe_expandn = NULL,
550 .return_filename = NULL,
551 .self_hostname = NULL,
552 .shadow_message = NULL,
553 #ifndef DISABLE_TLS
554 .cipher = NULL,
555 .ourcert = NULL,
556 .peercert = NULL,
557 .peerdn = NULL,
558 .ocsp = OCSP_NOT_REQ,
559 #endif
560 #ifdef EXPERIMENTAL_DSN_INFO
561 .smtp_greeting = NULL,
562 .helo_response = NULL,
563 #endif
564 .authenticator = NULL,
565 .auth_id = NULL,
566 .auth_sndr = NULL,
567 .dsn_orcpt = NULL,
568 .dsn_flags = 0,
569 .dsn_aware = 0,
570 .uid = (uid_t)(-1),
571 .gid = (gid_t)(-1),
572 .flags = { 0 },
573 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
574 .localpart_cache = { 0 }, /* localpart_cache - ditto */
575 .mode = -1,
576 .more_errno = 0,
577 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
578 .basic_errno = ERRNO_UNKNOWNERROR,
579 .child_count = 0,
580 .return_file = -1,
581 .special_action = SPECIAL_NONE,
582 .transport_return = DEFER,
583 .prop = { /* fields that are propagated to children */
584 .address_data = NULL,
585 .domain_data = NULL,
586 .localpart_data = NULL,
587 .errors_address = NULL,
588 .extra_headers = NULL,
589 .remove_headers = NULL,
590 .variables = NULL,
591 #ifdef EXPERIMENTAL_SRS
592 .srs_sender = NULL,
593 #endif
594 .ignore_error = FALSE,
595 #ifdef SUPPORT_I18N
596 .utf8_msg = FALSE,
597 .utf8_downcvt = FALSE,
598 .utf8_downcvt_maybe = FALSE
599 #endif
600 }
601 };
602
603 uschar *address_file = NULL;
604 uschar *address_pipe = NULL;
605 tree_node *addresslist_anchor = NULL;
606 int addresslist_count = 0;
607 gid_t *admin_groups = NULL;
608
609 #ifdef EXPERIMENTAL_ARC
610 struct arc_set *arc_received = NULL;
611 int arc_received_instance = 0;
612 int arc_oldest_pass = 0;
613 const uschar *arc_state = NULL;
614 const uschar *arc_state_reason = NULL;
615 #endif
616
617 uschar *authenticated_fail_id = NULL;
618 uschar *authenticated_id = NULL;
619 uschar *authenticated_sender = NULL;
620 auth_instance *auths = NULL;
621 uschar *auth_advertise_hosts = US"*";
622 auth_instance auth_defaults = {
623 .next = NULL,
624 .name = NULL,
625 .info = NULL,
626 .options_block = NULL,
627 .driver_name = NULL,
628 .advertise_condition = NULL,
629 .client_condition = NULL,
630 .public_name = NULL,
631 .set_id = NULL,
632 .set_client_id = NULL,
633 .mail_auth_condition = NULL,
634 .server_debug_string = NULL,
635 .server_condition = NULL,
636 .client = FALSE,
637 .server = FALSE,
638 .advertised = FALSE
639 };
640
641 uschar *auth_defer_msg = US"reason not recorded";
642 uschar *auth_defer_user_msg = US"";
643 uschar *auth_vars[AUTH_VARS];
644 int auto_thaw = 0;
645 #ifdef WITH_CONTENT_SCAN
646 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
647 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
648 #endif
649
650 #if BASE_62 == 62
651 uschar *base62_chars=
652 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
653 #else
654 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
655 #endif
656
657 uschar *bi_command = NULL;
658 uschar *big_buffer = NULL;
659 int big_buffer_size = BIG_BUFFER_SIZE;
660 #ifdef EXPERIMENTAL_BRIGHTMAIL
661 uschar *bmi_alt_location = NULL;
662 uschar *bmi_base64_tracker_verdict = NULL;
663 uschar *bmi_base64_verdict = NULL;
664 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
665 int bmi_deliver = 1;
666 int bmi_run = 0;
667 uschar *bmi_verdicts = NULL;
668 #endif
669 int bsmtp_transaction_linecount = 0;
670 int body_8bitmime = 0;
671 int body_linecount = 0;
672 int body_zerocount = 0;
673 uschar *bounce_message_file = NULL;
674 uschar *bounce_message_text = NULL;
675 uschar *bounce_recipient = NULL;
676 int bounce_return_linesize_limit = 998;
677 int bounce_return_size_limit = 100*1024;
678 uschar *bounce_sender_authentication = NULL;
679
680 uschar *callout_address = NULL;
681 int callout_cache_domain_positive_expire = 7*24*60*60;
682 int callout_cache_domain_negative_expire = 3*60*60;
683 int callout_cache_positive_expire = 24*60*60;
684 int callout_cache_negative_expire = 2*60*60;
685 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
686 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
687 int check_log_inodes = 100;
688 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
689 int check_spool_inodes = 100;
690 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
691
692 uschar *chunking_advertise_hosts = US"*";
693 unsigned chunking_datasize = 0;
694 unsigned chunking_data_left = 0;
695 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
696 const pcre *regex_CHUNKING = NULL;
697
698 uschar *client_authenticator = NULL;
699 uschar *client_authenticated_id = NULL;
700 uschar *client_authenticated_sender = NULL;
701 int clmacro_count = 0;
702 uschar *clmacros[MAX_CLMACROS];
703 FILE *config_file = NULL;
704 const uschar *config_filename = NULL;
705 int config_lineno = 0;
706 #ifdef CONFIGURE_GROUP
707 gid_t config_gid = CONFIGURE_GROUP;
708 #else
709 gid_t config_gid = 0;
710 #endif
711 uschar *config_main_filelist = US CONFIGURE_FILE
712 "\0<-----------Space to patch configure_filename->";
713 uschar *config_main_filename = NULL;
714 uschar *config_main_directory = NULL;
715
716 #ifdef CONFIGURE_OWNER
717 uid_t config_uid = CONFIGURE_OWNER;
718 #else
719 uid_t config_uid = 0;
720 #endif
721
722 int connection_max_messages= -1;
723 uschar *continue_proxy_cipher = NULL;
724 uschar *continue_hostname = NULL;
725 uschar *continue_host_address = NULL;
726 int continue_sequence = 1;
727 uschar *continue_transport = NULL;
728
729 uschar *csa_status = NULL;
730 cut_t cutthrough = {
731 .callout_hold_only = FALSE, /* verify-only: normal delivery */
732 .delivery = FALSE, /* when to attempt */
733 .defer_pass = FALSE, /* on defer: spool locally */
734 .is_tls = FALSE, /* not a TLS conn yet */
735 .cctx = {.sock = -1}, /* open connection */
736 .nrcpt = 0, /* number of addresses */
737 };
738
739 uschar *daemon_smtp_port = US"smtp";
740 int daemon_startup_retries = 9;
741 int daemon_startup_sleep = 30;
742
743 #ifdef EXPERIMENTAL_DCC
744 uschar *dcc_header = NULL;
745 uschar *dcc_result = NULL;
746 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
747 uschar *dccifd_options = US"header";
748 #endif
749
750 int debug_fd = -1;
751 FILE *debug_file = NULL;
752 int debug_notall[] = {
753 Di_memory,
754 Di_noutf8,
755 -1
756 };
757 bit_table debug_options[] = { /* must be in alphabetical order and use
758 only the enum values from macro.h */
759 BIT_TABLE(D, acl),
760 BIT_TABLE(D, all),
761 BIT_TABLE(D, auth),
762 BIT_TABLE(D, deliver),
763 BIT_TABLE(D, dns),
764 BIT_TABLE(D, dnsbl),
765 BIT_TABLE(D, exec),
766 BIT_TABLE(D, expand),
767 BIT_TABLE(D, filter),
768 BIT_TABLE(D, hints_lookup),
769 BIT_TABLE(D, host_lookup),
770 BIT_TABLE(D, ident),
771 BIT_TABLE(D, interface),
772 BIT_TABLE(D, lists),
773 BIT_TABLE(D, load),
774 BIT_TABLE(D, local_scan),
775 BIT_TABLE(D, lookup),
776 BIT_TABLE(D, memory),
777 BIT_TABLE(D, noutf8),
778 BIT_TABLE(D, pid),
779 BIT_TABLE(D, process_info),
780 BIT_TABLE(D, queue_run),
781 BIT_TABLE(D, receive),
782 BIT_TABLE(D, resolver),
783 BIT_TABLE(D, retry),
784 BIT_TABLE(D, rewrite),
785 BIT_TABLE(D, route),
786 BIT_TABLE(D, timestamp),
787 BIT_TABLE(D, tls),
788 BIT_TABLE(D, transport),
789 BIT_TABLE(D, uid),
790 BIT_TABLE(D, verify),
791 };
792 int debug_options_count = nelem(debug_options);
793
794 unsigned int debug_selector = 0;
795 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
796 uschar *delay_warning_condition=
797 US"${if or {"
798 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
799 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
800 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
801 "} {no}{yes}}";
802 uschar *deliver_address_data = NULL;
803 int deliver_datafile = -1;
804 const uschar *deliver_domain = NULL;
805 uschar *deliver_domain_data = NULL;
806 const uschar *deliver_domain_orig = NULL;
807 const uschar *deliver_domain_parent = NULL;
808 time_t deliver_frozen_at = 0;
809 uschar *deliver_home = NULL;
810 const uschar *deliver_host = NULL;
811 const uschar *deliver_host_address = NULL;
812 int deliver_host_port = 0;
813 uschar *deliver_in_buffer = NULL;
814 ino_t deliver_inode = 0;
815 uschar *deliver_localpart = NULL;
816 uschar *deliver_localpart_data = NULL;
817 uschar *deliver_localpart_orig = NULL;
818 uschar *deliver_localpart_parent = NULL;
819 uschar *deliver_localpart_prefix = NULL;
820 uschar *deliver_localpart_suffix = NULL;
821 uschar *deliver_localpart_verified = NULL;
822 uschar *deliver_out_buffer = NULL;
823 int deliver_queue_load_max = -1;
824 address_item *deliver_recipients = NULL;
825 uschar *deliver_selectstring = NULL;
826 uschar *deliver_selectstring_sender = NULL;
827
828 #ifndef DISABLE_DKIM
829 unsigned dkim_collect_input = 0;
830 uschar *dkim_cur_signer = NULL;
831 int dkim_key_length = 0;
832 void *dkim_signatures = NULL;
833 uschar *dkim_signers = NULL;
834 uschar *dkim_signing_domain = NULL;
835 uschar *dkim_signing_selector = NULL;
836 uschar *dkim_verify_hashes = US"sha256:sha512";
837 uschar *dkim_verify_keytypes = US"ed25519:rsa";
838 BOOL dkim_verify_minimal = FALSE;
839 uschar *dkim_verify_overall = NULL;
840 uschar *dkim_verify_signers = US"$dkim_signers";
841 uschar *dkim_verify_status = NULL;
842 uschar *dkim_verify_reason = NULL;
843 #endif
844 #ifdef SUPPORT_DMARC
845 uschar *dmarc_domain_policy = NULL;
846 uschar *dmarc_forensic_sender = NULL;
847 uschar *dmarc_history_file = NULL;
848 uschar *dmarc_status = NULL;
849 uschar *dmarc_status_text = NULL;
850 uschar *dmarc_tld_file = NULL;
851 uschar *dmarc_used_domain = NULL;
852 #endif
853
854 uschar *dns_again_means_nonexist = NULL;
855 int dns_csa_search_limit = 5;
856 int dns_cname_loops = 1;
857 #ifdef SUPPORT_DANE
858 int dns_dane_ok = -1;
859 #endif
860 uschar *dns_ipv4_lookup = NULL;
861 int dns_retrans = 0;
862 int dns_retry = 0;
863 int dns_dnssec_ok = -1; /* <0 = not coerced */
864 uschar *dns_trust_aa = NULL;
865 int dns_use_edns0 = -1; /* <0 = not coerced */
866 uschar *dnslist_domain = NULL;
867 uschar *dnslist_matched = NULL;
868 uschar *dnslist_text = NULL;
869 uschar *dnslist_value = NULL;
870 tree_node *domainlist_anchor = NULL;
871 int domainlist_count = 0;
872 uschar *dsn_from = US DEFAULT_DSN_FROM;
873
874 int errno_quota = ERRNO_QUOTA;
875 uschar *errors_copy = NULL;
876 int error_handling = ERRORS_SENDER;
877 uschar *errors_reply_to = NULL;
878 int errors_sender_rc = EXIT_FAILURE;
879 #ifndef DISABLE_EVENT
880 uschar *event_action = NULL; /* expansion for delivery events */
881 uschar *event_data = NULL; /* auxiliary data variable for event */
882 int event_defer_errno = 0;
883 const uschar *event_name = NULL; /* event name variable */
884 #endif
885
886
887 gid_t exim_gid = EXIM_GID;
888 uschar *exim_path = US BIN_DIRECTORY "/exim"
889 "\0<---------------Space to patch exim_path->";
890 uid_t exim_uid = EXIM_UID;
891 int expand_level = 0; /* Nesting depth, indent for debug */
892 int expand_forbid = 0;
893 int expand_nlength[EXPAND_MAXN+1];
894 int expand_nmax = -1;
895 uschar *expand_nstring[EXPAND_MAXN+1];
896 uschar *expand_string_message;
897 uschar *extra_local_interfaces = NULL;
898
899 int fake_response = OK;
900 uschar *fake_response_text = US"Your message has been rejected but is "
901 "being kept for evaluation.\nIf it was a "
902 "legitimate message, it may still be "
903 "delivered to the target recipient(s).";
904 int filter_n[FILTER_VARIABLE_COUNT];
905 int filter_sn[FILTER_VARIABLE_COUNT];
906 int filter_test = FTEST_NONE;
907 uschar *filter_test_sfile = NULL;
908 uschar *filter_test_ufile = NULL;
909 uschar *filter_thisaddress = NULL;
910 int finduser_retries = 0;
911 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
912 uschar *freeze_tell = NULL;
913 uschar *freeze_tell_config = NULL;
914 uschar *fudged_queue_times = US"";
915
916 uschar *gecos_name = NULL;
917 uschar *gecos_pattern = NULL;
918 rewrite_rule *global_rewrite_rules = NULL;
919
920 volatile sig_atomic_t had_command_timeout = 0;
921 volatile sig_atomic_t had_command_sigterm = 0;
922 volatile sig_atomic_t had_data_timeout = 0;
923 volatile sig_atomic_t had_data_sigint = 0;
924 uschar *headers_charset = US HEADERS_CHARSET;
925 int header_insert_maxlen = 64 * 1024;
926 header_line *header_last = NULL;
927 header_line *header_list = NULL;
928 int header_maxsize = HEADER_MAXSIZE;
929 int header_line_maxsize = 0;
930
931 header_name header_names[] = {
932 /* name len allow_resent htype */
933 { US"bcc", 3, TRUE, htype_bcc },
934 { US"cc", 2, TRUE, htype_cc },
935 { US"date", 4, TRUE, htype_date },
936 { US"delivery-date", 13, FALSE, htype_delivery_date },
937 { US"envelope-to", 11, FALSE, htype_envelope_to },
938 { US"from", 4, TRUE, htype_from },
939 { US"message-id", 10, TRUE, htype_id },
940 { US"received", 8, FALSE, htype_received },
941 { US"reply-to", 8, FALSE, htype_reply_to },
942 { US"return-path", 11, FALSE, htype_return_path },
943 { US"sender", 6, TRUE, htype_sender },
944 { US"subject", 7, FALSE, htype_subject },
945 { US"to", 2, TRUE, htype_to }
946 };
947
948 int header_names_size = nelem(header_names);
949
950 uschar *helo_accept_junk_hosts = NULL;
951 uschar *helo_allow_chars = US"";
952 uschar *helo_lookup_domains = US"@ : @[]";
953 uschar *helo_try_verify_hosts = NULL;
954 uschar *helo_verify_hosts = NULL;
955 const uschar *hex_digits = CUS"0123456789abcdef";
956 uschar *hold_domains = NULL;
957 uschar *host_data = NULL;
958 uschar *host_lookup = NULL;
959 uschar *host_lookup_order = US"bydns:byaddr";
960 uschar *host_lookup_msg = US"";
961 int host_number = 0;
962 uschar *host_number_string = NULL;
963 uschar *host_reject_connection = NULL;
964 tree_node *hostlist_anchor = NULL;
965 int hostlist_count = 0;
966 uschar *hosts_treat_as_local = NULL;
967 uschar *hosts_connection_nolog = NULL;
968
969 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
970 uschar *ignore_fromline_hosts = NULL;
971 int inetd_wait_timeout = -1;
972 uschar *initial_cwd = NULL;
973 uschar *interface_address = NULL;
974 int interface_port = -1;
975 uschar *iterate_item = NULL;
976
977 int journal_fd = -1;
978
979 uschar *keep_environment = NULL;
980
981 int keep_malformed = 4*24*60*60; /* 4 days */
982
983 uschar *eldap_dn = NULL;
984 int load_average = -2;
985 uschar *local_from_prefix = NULL;
986 uschar *local_from_suffix = NULL;
987
988 #if HAVE_IPV6
989 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
990 #else
991 uschar *local_interfaces = US"0.0.0.0";
992 #endif
993
994 #ifdef HAVE_LOCAL_SCAN
995 uschar *local_scan_data = NULL;
996 int local_scan_timeout = 5*60;
997 #endif
998 gid_t local_user_gid = (gid_t)(-1);
999 uid_t local_user_uid = (uid_t)(-1);
1000
1001 tree_node *localpartlist_anchor= NULL;
1002 int localpartlist_count = 0;
1003 uschar *log_buffer = NULL;
1004
1005 int log_default[] = { /* for initializing log_selector */
1006 Li_acl_warn_skipped,
1007 Li_connection_reject,
1008 Li_delay_delivery,
1009 Li_dkim,
1010 Li_dnslist_defer,
1011 Li_etrn,
1012 Li_host_lookup_failed,
1013 Li_lost_incoming_connection,
1014 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1015 Li_msg_id,
1016 Li_queue_run,
1017 Li_rejected_header,
1018 Li_retry_defer,
1019 Li_sender_verify_fail,
1020 Li_size_reject,
1021 Li_skip_delivery,
1022 Li_smtp_confirmation,
1023 Li_tls_certificate_verified,
1024 Li_tls_cipher,
1025 -1
1026 };
1027
1028 uschar *log_file_path = US LOG_FILE_PATH
1029 "\0<--------------Space to patch log_file_path->";
1030
1031 int log_notall[] = {
1032 -1
1033 };
1034 bit_table log_options[] = { /* must be in alphabetical order,
1035 with definitions from enum logbit. */
1036 BIT_TABLE(L, 8bitmime),
1037 BIT_TABLE(L, acl_warn_skipped),
1038 BIT_TABLE(L, address_rewrite),
1039 BIT_TABLE(L, all),
1040 BIT_TABLE(L, all_parents),
1041 BIT_TABLE(L, arguments),
1042 BIT_TABLE(L, connection_reject),
1043 BIT_TABLE(L, delay_delivery),
1044 BIT_TABLE(L, deliver_time),
1045 BIT_TABLE(L, delivery_size),
1046 #ifndef DISABLE_DKIM
1047 BIT_TABLE(L, dkim),
1048 BIT_TABLE(L, dkim_verbose),
1049 #endif
1050 BIT_TABLE(L, dnslist_defer),
1051 BIT_TABLE(L, dnssec),
1052 BIT_TABLE(L, etrn),
1053 BIT_TABLE(L, host_lookup_failed),
1054 BIT_TABLE(L, ident_timeout),
1055 BIT_TABLE(L, incoming_interface),
1056 BIT_TABLE(L, incoming_port),
1057 BIT_TABLE(L, lost_incoming_connection),
1058 BIT_TABLE(L, millisec),
1059 BIT_TABLE(L, msg_id),
1060 BIT_TABLE(L, msg_id_created),
1061 BIT_TABLE(L, outgoing_interface),
1062 BIT_TABLE(L, outgoing_port),
1063 BIT_TABLE(L, pid),
1064 BIT_TABLE(L, pipelining),
1065 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1066 BIT_TABLE(L, proxy),
1067 #endif
1068 BIT_TABLE(L, queue_run),
1069 BIT_TABLE(L, queue_time),
1070 BIT_TABLE(L, queue_time_overall),
1071 BIT_TABLE(L, receive_time),
1072 BIT_TABLE(L, received_recipients),
1073 BIT_TABLE(L, received_sender),
1074 BIT_TABLE(L, rejected_header),
1075 { US"rejected_headers", Li_rejected_header },
1076 BIT_TABLE(L, retry_defer),
1077 BIT_TABLE(L, return_path_on_delivery),
1078 BIT_TABLE(L, sender_on_delivery),
1079 BIT_TABLE(L, sender_verify_fail),
1080 BIT_TABLE(L, size_reject),
1081 BIT_TABLE(L, skip_delivery),
1082 BIT_TABLE(L, smtp_confirmation),
1083 BIT_TABLE(L, smtp_connection),
1084 BIT_TABLE(L, smtp_incomplete_transaction),
1085 BIT_TABLE(L, smtp_mailauth),
1086 BIT_TABLE(L, smtp_no_mail),
1087 BIT_TABLE(L, smtp_protocol_error),
1088 BIT_TABLE(L, smtp_syntax_error),
1089 BIT_TABLE(L, subject),
1090 BIT_TABLE(L, tls_certificate_verified),
1091 BIT_TABLE(L, tls_cipher),
1092 BIT_TABLE(L, tls_peerdn),
1093 BIT_TABLE(L, tls_resumption),
1094 BIT_TABLE(L, tls_sni),
1095 BIT_TABLE(L, unknown_in_list),
1096 };
1097 int log_options_count = nelem(log_options);
1098
1099 int log_reject_target = 0;
1100 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1101 uschar *log_selector_string = NULL;
1102 FILE *log_stderr = NULL;
1103 uschar *login_sender_address = NULL;
1104 uschar *lookup_dnssec_authenticated = NULL;
1105 int lookup_open_max = 25;
1106 uschar *lookup_value = NULL;
1107
1108 macro_item *macros_user = NULL;
1109 uschar *mailstore_basename = NULL;
1110 #ifdef WITH_CONTENT_SCAN
1111 uschar *malware_name = NULL; /* Virus Name */
1112 #endif
1113 int max_received_linelength= 0;
1114 int max_username_length = 0;
1115 int message_age = 0;
1116 uschar *message_body = NULL;
1117 uschar *message_body_end = NULL;
1118 int message_body_size = 0;
1119 int message_body_visible = 500;
1120 int message_ended = END_NOTSTARTED;
1121 uschar *message_headers = NULL;
1122 uschar *message_id;
1123 uschar *message_id_domain = NULL;
1124 uschar *message_id_text = NULL;
1125 struct timeval message_id_tv = { 0, 0 };
1126 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1127 uschar *message_id_external;
1128 int message_linecount = 0;
1129 int message_size = 0;
1130 uschar *message_size_limit = US"50M";
1131 #ifdef SUPPORT_I18N
1132 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1133 #endif
1134 uschar message_subdir[2] = { 0, 0 };
1135 uschar *message_reference = NULL;
1136
1137 /* MIME ACL expandables */
1138 #ifdef WITH_CONTENT_SCAN
1139 int mime_anomaly_level = 0;
1140 const uschar *mime_anomaly_text = NULL;
1141 uschar *mime_boundary = NULL;
1142 uschar *mime_charset = NULL;
1143 uschar *mime_content_description = NULL;
1144 uschar *mime_content_disposition = NULL;
1145 uschar *mime_content_id = NULL;
1146 unsigned int mime_content_size = 0;
1147 uschar *mime_content_transfer_encoding = NULL;
1148 uschar *mime_content_type = NULL;
1149 uschar *mime_decoded_filename = NULL;
1150 uschar *mime_filename = NULL;
1151 int mime_is_multipart = 0;
1152 int mime_is_coverletter = 0;
1153 int mime_is_rfc822 = 0;
1154 int mime_part_count = -1;
1155 #endif
1156
1157 uid_t *never_users = NULL;
1158
1159 const int on = 1; /* for setsockopt */
1160 const int off = 0;
1161
1162 uid_t original_euid;
1163 gid_t originator_gid;
1164 uschar *originator_login = NULL;
1165 uschar *originator_name = NULL;
1166 uid_t originator_uid;
1167 uschar *override_local_interfaces = NULL;
1168 uschar *override_pid_file_path = NULL;
1169
1170 uschar *percent_hack_domains = NULL;
1171 uschar *pid_file_path = US PID_FILE_PATH
1172 "\0<--------------Space to patch pid_file_path->";
1173 #ifndef DISABLE_PIPE_CONNECT
1174 uschar *pipe_connect_advertise_hosts = US"*";
1175 #endif
1176 uschar *pipelining_advertise_hosts = US"*";
1177 uschar *primary_hostname = NULL;
1178 uschar *process_info;
1179 int process_info_len = 0;
1180 uschar *process_log_path = NULL;
1181
1182 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1183 uschar *hosts_proxy = NULL;
1184 uschar *proxy_external_address = NULL;
1185 int proxy_external_port = 0;
1186 uschar *proxy_local_address = NULL;
1187 int proxy_local_port = 0;
1188 #endif
1189
1190 uschar *prvscheck_address = NULL;
1191 uschar *prvscheck_keynum = NULL;
1192 uschar *prvscheck_result = NULL;
1193
1194
1195 const uschar *qualify_domain_recipient = NULL;
1196 uschar *qualify_domain_sender = NULL;
1197 uschar *queue_domains = NULL;
1198 int queue_interval = -1;
1199 uschar *queue_name = US"";
1200 uschar *queue_name_dest = NULL;
1201 uschar *queue_only_file = NULL;
1202 int queue_only_load = -1;
1203 uschar *queue_run_max = US"5";
1204 pid_t queue_run_pid = (pid_t)0;
1205 int queue_run_pipe = -1;
1206 uschar *queue_smtp_domains = NULL;
1207
1208 uint32_t random_seed = 0;
1209 tree_node *ratelimiters_cmd = NULL;
1210 tree_node *ratelimiters_conn = NULL;
1211 tree_node *ratelimiters_mail = NULL;
1212 uschar *raw_active_hostname = NULL;
1213 uschar *raw_sender = NULL;
1214 uschar **raw_recipients = NULL;
1215 int raw_recipients_count = 0;
1216
1217 int rcpt_count = 0;
1218 int rcpt_fail_count = 0;
1219 int rcpt_defer_count = 0;
1220 gid_t real_gid;
1221 uid_t real_uid;
1222 int receive_linecount = 0;
1223 int receive_messagecount = 0;
1224 int receive_timeout = 0;
1225 int received_count = 0;
1226 uschar *received_for = NULL;
1227
1228 /* This is the default text for Received headers generated by Exim. The
1229 date will be automatically added on the end. */
1230
1231 uschar *received_header_text = US
1232 "Received: "
1233 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1234 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1235 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1236 "by $primary_hostname "
1237 "${if def:received_protocol {with $received_protocol }}"
1238 #ifndef DISABLE_TLS
1239 "${if def:tls_in_ver { ($tls_in_ver)}}"
1240 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1241 #endif
1242 "(Exim $version_number)\n\t"
1243 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1244 "id $message_exim_id"
1245 "${if def:received_for {\n\tfor $received_for}}"
1246 "\0<---------------Space to patch received_header_text->";
1247
1248 int received_headers_max = 30;
1249 uschar *received_protocol = NULL;
1250 struct timeval received_time = { 0, 0 };
1251 struct timeval received_time_taken = { 0, 0 };
1252 uschar *recipient_data = NULL;
1253 uschar *recipient_unqualified_hosts = NULL;
1254 uschar *recipient_verify_failure = NULL;
1255 int recipients_count = 0;
1256 recipient_item *recipients_list = NULL;
1257 int recipients_list_max = 0;
1258 int recipients_max = 0;
1259 const pcre *regex_AUTH = NULL;
1260 const pcre *regex_check_dns_names = NULL;
1261 const pcre *regex_From = NULL;
1262 const pcre *regex_IGNOREQUOTA = NULL;
1263 const pcre *regex_PIPELINING = NULL;
1264 const pcre *regex_SIZE = NULL;
1265 #ifndef DISABLE_PIPE_CONNECT
1266 const pcre *regex_EARLY_PIPE = NULL;
1267 #endif
1268 const pcre *regex_ismsgid = NULL;
1269 const pcre *regex_smtp_code = NULL;
1270 uschar *regex_vars[REGEX_VARS];
1271 #ifdef WHITELIST_D_MACROS
1272 const pcre *regex_whitelisted_macro = NULL;
1273 #endif
1274 #ifdef WITH_CONTENT_SCAN
1275 uschar *regex_match_string = NULL;
1276 #endif
1277 int remote_delivery_count = 0;
1278 int remote_max_parallel = 2;
1279 uschar *remote_sort_domains = NULL;
1280 int retry_data_expire = 7*24*60*60;
1281 int retry_interval_max = 24*60*60;
1282 int retry_maximum_timeout = 0; /* set from retry config */
1283 retry_config *retries = NULL;
1284 uschar *return_path = NULL;
1285 int rewrite_existflags = 0;
1286 uschar *rfc1413_hosts = US"@[]";
1287 int rfc1413_query_timeout = 0;
1288 uid_t root_gid = ROOT_GID;
1289 uid_t root_uid = ROOT_UID;
1290
1291 router_instance *routers = NULL;
1292 router_instance router_defaults = {
1293 .next = NULL,
1294 .name = NULL,
1295 .info = NULL,
1296 .options_block = NULL,
1297 .driver_name = NULL,
1298
1299 .address_data = NULL,
1300 #ifdef EXPERIMENTAL_BRIGHTMAIL
1301 .bmi_rule = NULL,
1302 #endif
1303 .cannot_route_message = NULL,
1304 .condition = NULL,
1305 .current_directory = NULL,
1306 .debug_string = NULL,
1307 .domains = NULL,
1308 .errors_to = NULL,
1309 .expand_gid = NULL,
1310 .expand_uid = NULL,
1311 .expand_more = NULL,
1312 .expand_unseen = NULL,
1313 .extra_headers = NULL,
1314 .fallback_hosts = NULL,
1315 .home_directory = NULL,
1316 .ignore_target_hosts = NULL,
1317 .local_parts = NULL,
1318 .pass_router_name = NULL,
1319 .prefix = NULL,
1320 .redirect_router_name = NULL,
1321 .remove_headers = NULL,
1322 .require_files = NULL,
1323 .router_home_directory = NULL,
1324 .self = US"freeze",
1325 .senders = NULL,
1326 .suffix = NULL,
1327 .translate_ip_address = NULL,
1328 .transport_name = NULL,
1329
1330 .address_test = TRUE,
1331 #ifdef EXPERIMENTAL_BRIGHTMAIL
1332 .bmi_deliver_alternate = FALSE,
1333 .bmi_deliver_default = FALSE,
1334 .bmi_dont_deliver = FALSE,
1335 #endif
1336 .expn = TRUE,
1337 .caseful_local_part = FALSE,
1338 .check_local_user = FALSE,
1339 .disable_logging = FALSE,
1340 .fail_verify_recipient = FALSE,
1341 .fail_verify_sender = FALSE,
1342 .gid_set = FALSE,
1343 .initgroups = FALSE,
1344 .log_as_local = TRUE_UNSET,
1345 .more = TRUE,
1346 .pass_on_timeout = FALSE,
1347 .prefix_optional = FALSE,
1348 .repeat_use = TRUE,
1349 .retry_use_local_part = TRUE_UNSET,
1350 .same_domain_copy_routing = FALSE,
1351 .self_rewrite = FALSE,
1352 .set = NULL,
1353 .suffix_optional = FALSE,
1354 .verify_only = FALSE,
1355 .verify_recipient = TRUE,
1356 .verify_sender = TRUE,
1357 .uid_set = FALSE,
1358 .unseen = FALSE,
1359 .dsn_lasthop = FALSE,
1360
1361 .self_code = self_freeze,
1362 .uid = (uid_t)(-1),
1363 .gid = (gid_t)(-1),
1364
1365 .fallback_hostlist = NULL,
1366 .transport = NULL,
1367 .pass_router = NULL,
1368 .redirect_router = NULL,
1369
1370 .dnssec = { .request= US"*", .require=NULL },
1371 };
1372
1373 uschar *router_name = NULL;
1374 tree_node *router_var = 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 #ifdef EXPERIMENTAL_SRS_NATIVE
1506 uschar *srs_recipient = NULL;
1507 #endif
1508 int string_datestamp_offset= -1;
1509 int string_datestamp_length= 0;
1510 int string_datestamp_type = -1;
1511 uschar *submission_domain = NULL;
1512 uschar *submission_name = NULL;
1513 int syslog_facility = LOG_MAIL;
1514 uschar *syslog_processname = US"exim";
1515 uschar *system_filter = NULL;
1516
1517 uschar *system_filter_directory_transport = NULL;
1518 uschar *system_filter_file_transport = NULL;
1519 uschar *system_filter_pipe_transport = NULL;
1520 uschar *system_filter_reply_transport = NULL;
1521
1522 gid_t system_filter_gid = 0;
1523 uid_t system_filter_uid = (uid_t)-1;
1524
1525 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1526 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1527 #ifdef USE_TCP_WRAPPERS
1528 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1529 #endif
1530 int test_harness_load_avg = 0;
1531 int thismessage_size_limit = 0;
1532 int timeout_frozen_after = 0;
1533 #ifdef MEASURE_TIMING
1534 struct timeval timestamp_startup;
1535 #endif
1536
1537 transport_instance *transports = NULL;
1538
1539 transport_instance transport_defaults = {
1540 .next = NULL,
1541 .name = NULL,
1542 .info = NULL,
1543 .options_block = NULL,
1544 .driver_name = NULL,
1545 .setup = NULL,
1546 .batch_max = 1,
1547 .batch_id = NULL,
1548 .home_dir = NULL,
1549 .current_dir = NULL,
1550 .expand_multi_domain = NULL,
1551 .multi_domain = TRUE,
1552 .overrides_hosts = FALSE,
1553 .max_addresses = 100,
1554 .connection_max_messages = 500,
1555 .deliver_as_creator = FALSE,
1556 .disable_logging = FALSE,
1557 .initgroups = FALSE,
1558 .uid_set = FALSE,
1559 .gid_set = FALSE,
1560 .uid = (uid_t)(-1),
1561 .gid = (gid_t)(-1),
1562 .expand_uid = NULL,
1563 .expand_gid = NULL,
1564 .warn_message = NULL,
1565 .shadow = NULL,
1566 .shadow_condition = NULL,
1567 .filter_command = NULL,
1568 .add_headers = NULL,
1569 .remove_headers = NULL,
1570 .return_path = NULL,
1571 .debug_string = NULL,
1572 .max_parallel = NULL,
1573 .message_size_limit = NULL,
1574 .headers_rewrite = NULL,
1575 .rewrite_rules = NULL,
1576 .rewrite_existflags = 0,
1577 .filter_timeout = 300,
1578 .body_only = FALSE,
1579 .delivery_date_add = FALSE,
1580 .envelope_to_add = FALSE,
1581 .headers_only = FALSE,
1582 .rcpt_include_affixes = FALSE,
1583 .return_path_add = FALSE,
1584 .return_output = FALSE,
1585 .return_fail_output = FALSE,
1586 .log_output = FALSE,
1587 .log_fail_output = FALSE,
1588 .log_defer_output = FALSE,
1589 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1590 1 nor 0 so can detect unset */
1591 #ifndef DISABLE_EVENT
1592 .event_action = NULL
1593 #endif
1594 };
1595
1596 int transport_count;
1597 uschar *transport_name = NULL;
1598 int transport_newlines;
1599 const uschar **transport_filter_argv = NULL;
1600 int transport_filter_timeout;
1601 int transport_write_timeout= 0;
1602
1603 tree_node *tree_dns_fails = NULL;
1604 tree_node *tree_duplicates = NULL;
1605 tree_node *tree_nonrecipients = NULL;
1606 tree_node *tree_unusable = NULL;
1607
1608 gid_t *trusted_groups = NULL;
1609 uid_t *trusted_users = NULL;
1610 uschar *timezone_string = US TIMEZONE_DEFAULT;
1611
1612 uschar *unknown_login = NULL;
1613 uschar *unknown_username = NULL;
1614 uschar *untrusted_set_sender = NULL;
1615
1616 /* A regex for matching a "From_" line in an incoming message, in the form
1617
1618 From ph10 Fri Jan 5 12:35 GMT 1996
1619
1620 which the "mail" commands send to the MTA (undocumented, of course), or in
1621 the form
1622
1623 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1624
1625 which is apparently used by some UUCPs, despite it not being in RFC 976.
1626 Because of variations in time formats, just match up to the minutes. That
1627 should be sufficient. Examples have been seen of time fields like 12:1:03,
1628 so just require one digit for hours and minutes. The weekday is also absent
1629 in some forms. */
1630
1631 uschar *uucp_from_pattern = US
1632 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1633 "(?:" /* Non-extracting bracket */
1634 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1635 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1636 ")" /* End alternation */
1637 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1638
1639 uschar *uucp_from_sender = US"$1";
1640
1641 uschar *verify_mode = NULL;
1642 uschar *version_copyright =
1643 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1644 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1645 uschar *version_date = US"?";
1646 uschar *version_cnumber = US"????";
1647 uschar *version_string = US"?";
1648
1649 uschar *warn_message_file = NULL;
1650 int warning_count = 0;
1651 uschar *warnmsg_delay = NULL;
1652 uschar *warnmsg_recipients = NULL;
1653
1654
1655 /* End of globals.c */
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