57f857e5af7faa84b5aaead8d7ec96ef57bb893b
[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 OPT_OFF(auth_instance, client_condition) },
20 { "client_set_id", opt_stringptr | opt_public,
21 OPT_OFF(auth_instance, set_client_id) },
22 { "driver", opt_stringptr | opt_public,
23 OPT_OFF(auth_instance, driver_name) },
24 { "public_name", opt_stringptr | opt_public,
25 OPT_OFF(auth_instance, public_name) },
26 { "server_advertise_condition", opt_stringptr | opt_public,
27 OPT_OFF(auth_instance, advertise_condition)},
28 { "server_condition", opt_stringptr | opt_public,
29 OPT_OFF(auth_instance, server_condition) },
30 { "server_debug_print", opt_stringptr | opt_public,
31 OPT_OFF(auth_instance, server_debug_string) },
32 { "server_mail_auth_condition", opt_stringptr | opt_public,
33 OPT_OFF(auth_instance, mail_auth_condition) },
34 { "server_set_id", opt_stringptr | opt_public,
35 OPT_OFF(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 .testsuite_delays = TRUE,
317 .tcp_fastopen_ok = FALSE,
318 .tcp_in_fastopen = FALSE,
319 .tcp_in_fastopen_data = FALSE,
320 .tcp_in_fastopen_logged = FALSE,
321 .tcp_out_fastopen_logged= FALSE,
322 .timestamps_utc = FALSE,
323 .transport_filter_timed_out = FALSE,
324 .trusted_caller = FALSE,
325 .trusted_config = TRUE,
326 };
327
328 /******************************************************************************/
329 /* These are the flags which are either variables or mainsection options,
330 so an address is needed for access, or are exported to local_scan. */
331
332 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
333 BOOL allow_domain_literals = FALSE;
334 BOOL allow_mx_to_ip = FALSE;
335 BOOL allow_utf8_domains = FALSE;
336 BOOL authentication_failed = FALSE;
337
338 BOOL bounce_return_body = TRUE;
339 BOOL bounce_return_message = TRUE;
340 BOOL check_rfc2047_length = TRUE;
341 BOOL commandline_checks_require_admin = FALSE;
342
343 #ifdef EXPERIMENTAL_DCC
344 BOOL dcc_direct_add_header = FALSE;
345 #endif
346 BOOL debug_store = FALSE;
347 BOOL delivery_date_remove = TRUE;
348 BOOL deliver_drop_privilege = FALSE;
349 #ifdef ENABLE_DISABLE_FSYNC
350 BOOL disable_fsync = FALSE;
351 #endif
352 BOOL disable_ipv6 = FALSE;
353 BOOL dns_csa_use_reverse = TRUE;
354 BOOL drop_cr = FALSE; /* No longer used */
355
356 BOOL envelope_to_remove = TRUE;
357 BOOL exim_gid_set = TRUE; /* This gid is always set */
358 BOOL exim_uid_set = TRUE; /* This uid is always set */
359 BOOL extract_addresses_remove_arguments = TRUE;
360
361 BOOL host_checking = FALSE;
362 BOOL host_lookup_deferred = FALSE;
363 BOOL host_lookup_failed = FALSE;
364 BOOL ignore_fromline_local = FALSE;
365
366 BOOL local_from_check = TRUE;
367 BOOL local_sender_retain = FALSE;
368 BOOL log_timezone = FALSE;
369 BOOL message_body_newlines = FALSE;
370 BOOL message_logs = TRUE;
371 #ifdef SUPPORT_I18N
372 BOOL message_smtputf8 = FALSE;
373 #endif
374 BOOL mua_wrapper = FALSE;
375
376 BOOL preserve_message_logs = FALSE;
377 BOOL print_topbitchars = FALSE;
378 BOOL prod_requires_admin = TRUE;
379 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
380 BOOL proxy_session = FALSE;
381 #endif
382
383 #ifdef EXPERIMENTAL_QUEUE_RAMP
384 BOOL queue_fast_ramp = FALSE;
385 #endif
386 BOOL queue_list_requires_admin = TRUE;
387 BOOL queue_only = FALSE;
388 BOOL queue_only_load_latch = TRUE;
389 BOOL queue_only_override = TRUE;
390 BOOL queue_run_in_order = FALSE;
391 BOOL recipients_max_reject = FALSE;
392 BOOL return_path_remove = TRUE;
393
394 BOOL smtp_batched_input = FALSE;
395 BOOL sender_helo_dnssec = FALSE;
396 BOOL sender_host_dnssec = FALSE;
397 BOOL smtp_accept_keepalive = TRUE;
398 BOOL smtp_check_spool_space = TRUE;
399 BOOL smtp_enforce_sync = TRUE;
400 BOOL smtp_etrn_serialize = TRUE;
401 BOOL smtp_input = FALSE;
402 BOOL smtp_return_error_details = FALSE;
403 #ifdef SUPPORT_SPF
404 BOOL spf_result_guessed = FALSE;
405 #endif
406 BOOL split_spool_directory = FALSE;
407 BOOL spool_wireformat = FALSE;
408 #ifdef EXPERIMENTAL_SRS
409 BOOL srs_usehash = TRUE;
410 BOOL srs_usetimestamp = TRUE;
411 #endif
412 BOOL strict_acl_vars = FALSE;
413 BOOL strip_excess_angle_brackets = FALSE;
414 BOOL strip_trailing_dot = FALSE;
415 BOOL syslog_duplication = TRUE;
416 BOOL syslog_pid = TRUE;
417 BOOL syslog_timestamp = TRUE;
418 BOOL system_filter_gid_set = FALSE;
419 BOOL system_filter_uid_set = FALSE;
420
421 BOOL tcp_nodelay = TRUE;
422 BOOL write_rejectlog = TRUE;
423
424 /******************************************************************************/
425
426 header_line *acl_added_headers = NULL;
427 tree_node *acl_anchor = NULL;
428 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
429 NULL, NULL, NULL, NULL};
430 int acl_narg = 0;
431
432 int acl_level = 0;
433
434 uschar *acl_not_smtp = NULL;
435 #ifdef WITH_CONTENT_SCAN
436 uschar *acl_not_smtp_mime = NULL;
437 #endif
438 uschar *acl_not_smtp_start = NULL;
439 uschar *acl_removed_headers = NULL;
440 uschar *acl_smtp_auth = NULL;
441 uschar *acl_smtp_connect = NULL;
442 uschar *acl_smtp_data = NULL;
443 #ifndef DISABLE_PRDR
444 uschar *acl_smtp_data_prdr = US"accept";
445 #endif
446 #ifndef DISABLE_DKIM
447 uschar *acl_smtp_dkim = NULL;
448 #endif
449 uschar *acl_smtp_etrn = NULL;
450 uschar *acl_smtp_expn = NULL;
451 uschar *acl_smtp_helo = NULL;
452 uschar *acl_smtp_mail = NULL;
453 uschar *acl_smtp_mailauth = NULL;
454 #ifdef WITH_CONTENT_SCAN
455 uschar *acl_smtp_mime = NULL;
456 #endif
457 uschar *acl_smtp_notquit = NULL;
458 uschar *acl_smtp_predata = NULL;
459 uschar *acl_smtp_quit = NULL;
460 uschar *acl_smtp_rcpt = NULL;
461 uschar *acl_smtp_starttls = NULL;
462 uschar *acl_smtp_vrfy = NULL;
463
464 tree_node *acl_var_c = NULL;
465 tree_node *acl_var_m = NULL;
466 uschar *acl_verify_message = NULL;
467 string_item *acl_warn_logged = NULL;
468
469 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
470 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
471
472 uschar *acl_wherenames[] = { US"RCPT",
473 US"MAIL",
474 US"PREDATA",
475 US"MIME",
476 US"DKIM",
477 US"DATA",
478 #ifndef DISABLE_PRDR
479 US"PRDR",
480 #endif
481 US"non-SMTP",
482 US"AUTH",
483 US"connection",
484 US"ETRN",
485 US"EXPN",
486 US"EHLO or HELO",
487 US"MAILAUTH",
488 US"non-SMTP-start",
489 US"NOTQUIT",
490 US"QUIT",
491 US"STARTTLS",
492 US"VRFY",
493 US"delivery",
494 US"unknown"
495 };
496
497 uschar *acl_wherecodes[] = { US"550", /* RCPT */
498 US"550", /* MAIL */
499 US"550", /* PREDATA */
500 US"550", /* MIME */
501 US"550", /* DKIM */
502 US"550", /* DATA */
503 #ifndef DISABLE_PRDR
504 US"550", /* RCPT PRDR */
505 #endif
506 US"0", /* not SMTP; not relevant */
507 US"503", /* AUTH */
508 US"550", /* connect */
509 US"458", /* ETRN */
510 US"550", /* EXPN */
511 US"550", /* HELO/EHLO */
512 US"0", /* MAILAUTH; not relevant */
513 US"0", /* not SMTP; not relevant */
514 US"0", /* NOTQUIT; not relevant */
515 US"0", /* QUIT; not relevant */
516 US"550", /* STARTTLS */
517 US"252", /* VRFY */
518 US"0", /* delivery; not relevant */
519 US"0" /* unknown; not relevant */
520 };
521
522 uschar *add_environment = NULL;
523 address_item *addr_duplicate = NULL;
524
525 address_item address_defaults = {
526 .next = NULL,
527 .parent = NULL,
528 .first = NULL,
529 .dupof = NULL,
530 .start_router = NULL,
531 .router = NULL,
532 .transport = NULL,
533 .host_list = NULL,
534 .host_used = NULL,
535 .fallback_hosts = NULL,
536 .reply = NULL,
537 .retries = NULL,
538 .address = NULL,
539 .unique = NULL,
540 .cc_local_part = NULL,
541 .lc_local_part = NULL,
542 .local_part = NULL,
543 .prefix = NULL,
544 .prefix_v = NULL,
545 .suffix = NULL,
546 .suffix_v = NULL,
547 .domain = NULL,
548 .address_retry_key = NULL,
549 .domain_retry_key = NULL,
550 .current_dir = NULL,
551 .home_dir = NULL,
552 .message = NULL,
553 .user_message = NULL,
554 .onetime_parent = NULL,
555 .pipe_expandn = NULL,
556 .return_filename = NULL,
557 .self_hostname = NULL,
558 .shadow_message = NULL,
559 #ifndef DISABLE_TLS
560 .cipher = NULL,
561 .ourcert = NULL,
562 .peercert = NULL,
563 .peerdn = NULL,
564 .ocsp = OCSP_NOT_REQ,
565 #endif
566 #ifdef EXPERIMENTAL_DSN_INFO
567 .smtp_greeting = NULL,
568 .helo_response = NULL,
569 #endif
570 .authenticator = NULL,
571 .auth_id = NULL,
572 .auth_sndr = NULL,
573 .dsn_orcpt = NULL,
574 .dsn_flags = 0,
575 .dsn_aware = 0,
576 .uid = (uid_t)(-1),
577 .gid = (gid_t)(-1),
578 .flags = { 0 },
579 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
580 .localpart_cache = { 0 }, /* localpart_cache - ditto */
581 .mode = -1,
582 .more_errno = 0,
583 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
584 .basic_errno = ERRNO_UNKNOWNERROR,
585 .child_count = 0,
586 .return_file = -1,
587 .special_action = SPECIAL_NONE,
588 .transport_return = DEFER,
589 .prop = { /* fields that are propagated to children */
590 .address_data = NULL,
591 .domain_data = NULL,
592 .localpart_data = NULL,
593 .errors_address = NULL,
594 .extra_headers = NULL,
595 .remove_headers = NULL,
596 .variables = NULL,
597 #ifdef EXPERIMENTAL_SRS
598 .srs_sender = NULL,
599 #endif
600 .ignore_error = FALSE,
601 #ifdef SUPPORT_I18N
602 .utf8_msg = FALSE,
603 .utf8_downcvt = FALSE,
604 .utf8_downcvt_maybe = FALSE
605 #endif
606 }
607 };
608
609 uschar *address_file = NULL;
610 uschar *address_pipe = NULL;
611 tree_node *addresslist_anchor = NULL;
612 int addresslist_count = 0;
613 gid_t *admin_groups = NULL;
614
615 #ifdef EXPERIMENTAL_ARC
616 struct arc_set *arc_received = NULL;
617 int arc_received_instance = 0;
618 int arc_oldest_pass = 0;
619 const uschar *arc_state = NULL;
620 const uschar *arc_state_reason = NULL;
621 #endif
622
623 uschar *authenticated_fail_id = NULL;
624 uschar *authenticated_id = NULL;
625 uschar *authenticated_sender = NULL;
626 auth_instance *auths = NULL;
627 uschar *auth_advertise_hosts = US"*";
628 auth_instance auth_defaults = {
629 .next = NULL,
630 .name = NULL,
631 .info = NULL,
632 .options_block = NULL,
633 .driver_name = NULL,
634 .advertise_condition = NULL,
635 .client_condition = NULL,
636 .public_name = NULL,
637 .set_id = NULL,
638 .set_client_id = NULL,
639 .mail_auth_condition = NULL,
640 .server_debug_string = NULL,
641 .server_condition = NULL,
642 .client = FALSE,
643 .server = FALSE,
644 .advertised = FALSE
645 };
646
647 uschar *auth_defer_msg = US"reason not recorded";
648 uschar *auth_defer_user_msg = US"";
649 uschar *auth_vars[AUTH_VARS];
650 int auto_thaw = 0;
651 #ifdef WITH_CONTENT_SCAN
652 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
653 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
654 #endif
655
656 #if BASE_62 == 62
657 uschar *base62_chars=
658 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
659 #else
660 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
661 #endif
662
663 uschar *bi_command = NULL;
664 uschar *big_buffer = NULL;
665 int big_buffer_size = BIG_BUFFER_SIZE;
666 #ifdef EXPERIMENTAL_BRIGHTMAIL
667 uschar *bmi_alt_location = NULL;
668 uschar *bmi_base64_tracker_verdict = NULL;
669 uschar *bmi_base64_verdict = NULL;
670 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
671 int bmi_deliver = 1;
672 int bmi_run = 0;
673 uschar *bmi_verdicts = NULL;
674 #endif
675 int bsmtp_transaction_linecount = 0;
676 int body_8bitmime = 0;
677 int body_linecount = 0;
678 int body_zerocount = 0;
679 uschar *bounce_message_file = NULL;
680 uschar *bounce_message_text = NULL;
681 uschar *bounce_recipient = NULL;
682 int bounce_return_linesize_limit = 998;
683 int bounce_return_size_limit = 100*1024;
684 uschar *bounce_sender_authentication = NULL;
685
686 uschar *callout_address = NULL;
687 int callout_cache_domain_positive_expire = 7*24*60*60;
688 int callout_cache_domain_negative_expire = 3*60*60;
689 int callout_cache_positive_expire = 24*60*60;
690 int callout_cache_negative_expire = 2*60*60;
691 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
692 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
693 int check_log_inodes = 100;
694 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
695 int check_spool_inodes = 100;
696 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
697
698 uschar *chunking_advertise_hosts = US"*";
699 unsigned chunking_datasize = 0;
700 unsigned chunking_data_left = 0;
701 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
702 const pcre *regex_CHUNKING = NULL;
703
704 uschar *client_authenticator = NULL;
705 uschar *client_authenticated_id = NULL;
706 uschar *client_authenticated_sender = NULL;
707 int clmacro_count = 0;
708 uschar *clmacros[MAX_CLMACROS];
709 FILE *config_file = NULL;
710 const uschar *config_filename = NULL;
711 int config_lineno = 0;
712 #ifdef CONFIGURE_GROUP
713 gid_t config_gid = CONFIGURE_GROUP;
714 #else
715 gid_t config_gid = 0;
716 #endif
717 uschar *config_main_filelist = US CONFIGURE_FILE
718 "\0<-----------Space to patch configure_filename->";
719 uschar *config_main_filename = NULL;
720 uschar *config_main_directory = NULL;
721
722 #ifdef CONFIGURE_OWNER
723 uid_t config_uid = CONFIGURE_OWNER;
724 #else
725 uid_t config_uid = 0;
726 #endif
727
728 int connection_max_messages= -1;
729 uschar *continue_proxy_cipher = NULL;
730 uschar *continue_hostname = NULL;
731 uschar *continue_host_address = NULL;
732 int continue_sequence = 1;
733 uschar *continue_transport = NULL;
734
735 uschar *csa_status = NULL;
736 cut_t cutthrough = {
737 .callout_hold_only = FALSE, /* verify-only: normal delivery */
738 .delivery = FALSE, /* when to attempt */
739 .defer_pass = FALSE, /* on defer: spool locally */
740 .is_tls = FALSE, /* not a TLS conn yet */
741 .cctx = {.sock = -1}, /* open connection */
742 .nrcpt = 0, /* number of addresses */
743 };
744
745 int daemon_notifier_fd = -1;
746 uschar *daemon_smtp_port = US"smtp";
747 int daemon_startup_retries = 9;
748 int daemon_startup_sleep = 30;
749
750 #ifdef EXPERIMENTAL_DCC
751 uschar *dcc_header = NULL;
752 uschar *dcc_result = NULL;
753 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
754 uschar *dccifd_options = US"header";
755 #endif
756
757 int debug_fd = -1;
758 FILE *debug_file = NULL;
759 int debug_notall[] = {
760 Di_memory,
761 Di_noutf8,
762 -1
763 };
764 bit_table debug_options[] = { /* must be in alphabetical order and use
765 only the enum values from macro.h */
766 BIT_TABLE(D, acl),
767 BIT_TABLE(D, all),
768 BIT_TABLE(D, auth),
769 BIT_TABLE(D, deliver),
770 BIT_TABLE(D, dns),
771 BIT_TABLE(D, dnsbl),
772 BIT_TABLE(D, exec),
773 BIT_TABLE(D, expand),
774 BIT_TABLE(D, filter),
775 BIT_TABLE(D, hints_lookup),
776 BIT_TABLE(D, host_lookup),
777 BIT_TABLE(D, ident),
778 BIT_TABLE(D, interface),
779 BIT_TABLE(D, lists),
780 BIT_TABLE(D, load),
781 BIT_TABLE(D, local_scan),
782 BIT_TABLE(D, lookup),
783 BIT_TABLE(D, memory),
784 BIT_TABLE(D, noutf8),
785 BIT_TABLE(D, pid),
786 BIT_TABLE(D, process_info),
787 BIT_TABLE(D, queue_run),
788 BIT_TABLE(D, receive),
789 BIT_TABLE(D, resolver),
790 BIT_TABLE(D, retry),
791 BIT_TABLE(D, rewrite),
792 BIT_TABLE(D, route),
793 BIT_TABLE(D, timestamp),
794 BIT_TABLE(D, tls),
795 BIT_TABLE(D, transport),
796 BIT_TABLE(D, uid),
797 BIT_TABLE(D, verify),
798 };
799 int debug_options_count = nelem(debug_options);
800
801 unsigned int debug_selector = 0;
802 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
803 uschar *delay_warning_condition=
804 US"${if or {"
805 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
806 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
807 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
808 "} {no}{yes}}";
809 uschar *deliver_address_data = NULL;
810 int deliver_datafile = -1;
811 const uschar *deliver_domain = NULL;
812 uschar *deliver_domain_data = NULL;
813 const uschar *deliver_domain_orig = NULL;
814 const uschar *deliver_domain_parent = NULL;
815 time_t deliver_frozen_at = 0;
816 uschar *deliver_home = NULL;
817 const uschar *deliver_host = NULL;
818 const uschar *deliver_host_address = NULL;
819 int deliver_host_port = 0;
820 uschar *deliver_in_buffer = NULL;
821 ino_t deliver_inode = 0;
822 uschar *deliver_localpart = NULL;
823 uschar *deliver_localpart_data = NULL;
824 uschar *deliver_localpart_orig = NULL;
825 uschar *deliver_localpart_parent = NULL;
826 uschar *deliver_localpart_prefix = NULL;
827 uschar *deliver_localpart_prefix_v = NULL;
828 uschar *deliver_localpart_suffix = NULL;
829 uschar *deliver_localpart_suffix_v = NULL;
830 uschar *deliver_localpart_verified = NULL;
831 uschar *deliver_out_buffer = NULL;
832 int deliver_queue_load_max = -1;
833 address_item *deliver_recipients = NULL;
834 uschar *deliver_selectstring = NULL;
835 uschar *deliver_selectstring_sender = NULL;
836
837 #ifndef DISABLE_DKIM
838 unsigned dkim_collect_input = 0;
839 uschar *dkim_cur_signer = NULL;
840 int dkim_key_length = 0;
841 void *dkim_signatures = NULL;
842 uschar *dkim_signers = NULL;
843 uschar *dkim_signing_domain = NULL;
844 uschar *dkim_signing_selector = NULL;
845 uschar *dkim_verify_hashes = US"sha256:sha512";
846 uschar *dkim_verify_keytypes = US"ed25519:rsa";
847 BOOL dkim_verify_minimal = FALSE;
848 uschar *dkim_verify_overall = NULL;
849 uschar *dkim_verify_signers = US"$dkim_signers";
850 uschar *dkim_verify_status = NULL;
851 uschar *dkim_verify_reason = NULL;
852 #endif
853 #ifdef SUPPORT_DMARC
854 uschar *dmarc_domain_policy = NULL;
855 uschar *dmarc_forensic_sender = NULL;
856 uschar *dmarc_history_file = NULL;
857 uschar *dmarc_status = NULL;
858 uschar *dmarc_status_text = NULL;
859 uschar *dmarc_tld_file = NULL;
860 uschar *dmarc_used_domain = NULL;
861 #endif
862
863 uschar *dns_again_means_nonexist = NULL;
864 int dns_csa_search_limit = 5;
865 int dns_cname_loops = 1;
866 #ifdef SUPPORT_DANE
867 int dns_dane_ok = -1;
868 #endif
869 uschar *dns_ipv4_lookup = NULL;
870 int dns_retrans = 0;
871 int dns_retry = 0;
872 int dns_dnssec_ok = -1; /* <0 = not coerced */
873 uschar *dns_trust_aa = NULL;
874 int dns_use_edns0 = -1; /* <0 = not coerced */
875 uschar *dnslist_domain = NULL;
876 uschar *dnslist_matched = NULL;
877 uschar *dnslist_text = NULL;
878 uschar *dnslist_value = NULL;
879 tree_node *domainlist_anchor = NULL;
880 int domainlist_count = 0;
881 uschar *dsn_from = US DEFAULT_DSN_FROM;
882
883 int errno_quota = ERRNO_QUOTA;
884 uschar *errors_copy = NULL;
885 int error_handling = ERRORS_SENDER;
886 uschar *errors_reply_to = NULL;
887 int errors_sender_rc = EXIT_FAILURE;
888 #ifndef DISABLE_EVENT
889 uschar *event_action = NULL; /* expansion for delivery events */
890 uschar *event_data = NULL; /* auxiliary data variable for event */
891 int event_defer_errno = 0;
892 const uschar *event_name = NULL; /* event name variable */
893 #endif
894
895
896 gid_t exim_gid = EXIM_GID;
897 uschar *exim_path = US BIN_DIRECTORY "/exim"
898 "\0<---------------Space to patch exim_path->";
899 uid_t exim_uid = EXIM_UID;
900 int expand_level = 0; /* Nesting depth, indent for debug */
901 int expand_forbid = 0;
902 int expand_nlength[EXPAND_MAXN+1];
903 int expand_nmax = -1;
904 uschar *expand_nstring[EXPAND_MAXN+1];
905 uschar *expand_string_message;
906 uschar *extra_local_interfaces = NULL;
907
908 int fake_response = OK;
909 uschar *fake_response_text = US"Your message has been rejected but is "
910 "being kept for evaluation.\nIf it was a "
911 "legitimate message, it may still be "
912 "delivered to the target recipient(s).";
913 int filter_n[FILTER_VARIABLE_COUNT];
914 int filter_sn[FILTER_VARIABLE_COUNT];
915 int filter_test = FTEST_NONE;
916 uschar *filter_test_sfile = NULL;
917 uschar *filter_test_ufile = NULL;
918 uschar *filter_thisaddress = NULL;
919 int finduser_retries = 0;
920 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
921 uschar *freeze_tell = NULL;
922 uschar *freeze_tell_config = NULL;
923 uschar *fudged_queue_times = US"";
924
925 uschar *gecos_name = NULL;
926 uschar *gecos_pattern = NULL;
927 rewrite_rule *global_rewrite_rules = NULL;
928
929 volatile sig_atomic_t had_command_timeout = 0;
930 volatile sig_atomic_t had_command_sigterm = 0;
931 volatile sig_atomic_t had_data_timeout = 0;
932 volatile sig_atomic_t had_data_sigint = 0;
933 uschar *headers_charset = US HEADERS_CHARSET;
934 int header_insert_maxlen = 64 * 1024;
935 header_line *header_last = NULL;
936 header_line *header_list = NULL;
937 int header_maxsize = HEADER_MAXSIZE;
938 int header_line_maxsize = 0;
939
940 header_name header_names[] = {
941 /* name len allow_resent htype */
942 { US"bcc", 3, TRUE, htype_bcc },
943 { US"cc", 2, TRUE, htype_cc },
944 { US"date", 4, TRUE, htype_date },
945 { US"delivery-date", 13, FALSE, htype_delivery_date },
946 { US"envelope-to", 11, FALSE, htype_envelope_to },
947 { US"from", 4, TRUE, htype_from },
948 { US"message-id", 10, TRUE, htype_id },
949 { US"received", 8, FALSE, htype_received },
950 { US"reply-to", 8, FALSE, htype_reply_to },
951 { US"return-path", 11, FALSE, htype_return_path },
952 { US"sender", 6, TRUE, htype_sender },
953 { US"subject", 7, FALSE, htype_subject },
954 { US"to", 2, TRUE, htype_to }
955 };
956
957 int header_names_size = nelem(header_names);
958
959 uschar *helo_accept_junk_hosts = NULL;
960 uschar *helo_allow_chars = US"";
961 uschar *helo_lookup_domains = US"@ : @[]";
962 uschar *helo_try_verify_hosts = NULL;
963 uschar *helo_verify_hosts = NULL;
964 const uschar *hex_digits = CUS"0123456789abcdef";
965 uschar *hold_domains = NULL;
966 uschar *host_data = NULL;
967 uschar *host_lookup = NULL;
968 uschar *host_lookup_order = US"bydns:byaddr";
969 uschar *host_lookup_msg = US"";
970 int host_number = 0;
971 uschar *host_number_string = NULL;
972 uschar *host_reject_connection = NULL;
973 tree_node *hostlist_anchor = NULL;
974 int hostlist_count = 0;
975 uschar *hosts_treat_as_local = NULL;
976 uschar *hosts_connection_nolog = NULL;
977
978 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
979 uschar *ignore_fromline_hosts = NULL;
980 int inetd_wait_timeout = -1;
981 uschar *initial_cwd = NULL;
982 uschar *interface_address = NULL;
983 int interface_port = -1;
984 uschar *iterate_item = NULL;
985
986 int journal_fd = -1;
987
988 uschar *keep_environment = NULL;
989
990 int keep_malformed = 4*24*60*60; /* 4 days */
991
992 uschar *eldap_dn = NULL;
993 int load_average = -2;
994 uschar *local_from_prefix = NULL;
995 uschar *local_from_suffix = NULL;
996
997 #if HAVE_IPV6
998 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
999 #else
1000 uschar *local_interfaces = US"0.0.0.0";
1001 #endif
1002
1003 #ifdef HAVE_LOCAL_SCAN
1004 uschar *local_scan_data = NULL;
1005 int local_scan_timeout = 5*60;
1006 #endif
1007 gid_t local_user_gid = (gid_t)(-1);
1008 uid_t local_user_uid = (uid_t)(-1);
1009
1010 tree_node *localpartlist_anchor= NULL;
1011 int localpartlist_count = 0;
1012 uschar *log_buffer = NULL;
1013
1014 int log_default[] = { /* for initializing log_selector */
1015 Li_acl_warn_skipped,
1016 Li_connection_reject,
1017 Li_delay_delivery,
1018 Li_dkim,
1019 Li_dnslist_defer,
1020 Li_etrn,
1021 Li_host_lookup_failed,
1022 Li_lost_incoming_connection,
1023 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1024 Li_msg_id,
1025 Li_queue_run,
1026 Li_rejected_header,
1027 Li_retry_defer,
1028 Li_sender_verify_fail,
1029 Li_size_reject,
1030 Li_skip_delivery,
1031 Li_smtp_confirmation,
1032 Li_tls_certificate_verified,
1033 Li_tls_cipher,
1034 -1
1035 };
1036
1037 uschar *log_file_path = US LOG_FILE_PATH
1038 "\0<--------------Space to patch log_file_path->";
1039
1040 int log_notall[] = {
1041 -1
1042 };
1043 bit_table log_options[] = { /* must be in alphabetical order,
1044 with definitions from enum logbit. */
1045 BIT_TABLE(L, 8bitmime),
1046 BIT_TABLE(L, acl_warn_skipped),
1047 BIT_TABLE(L, address_rewrite),
1048 BIT_TABLE(L, all),
1049 BIT_TABLE(L, all_parents),
1050 BIT_TABLE(L, arguments),
1051 BIT_TABLE(L, connection_reject),
1052 BIT_TABLE(L, delay_delivery),
1053 BIT_TABLE(L, deliver_time),
1054 BIT_TABLE(L, delivery_size),
1055 #ifndef DISABLE_DKIM
1056 BIT_TABLE(L, dkim),
1057 BIT_TABLE(L, dkim_verbose),
1058 #endif
1059 BIT_TABLE(L, dnslist_defer),
1060 BIT_TABLE(L, dnssec),
1061 BIT_TABLE(L, etrn),
1062 BIT_TABLE(L, host_lookup_failed),
1063 BIT_TABLE(L, ident_timeout),
1064 BIT_TABLE(L, incoming_interface),
1065 BIT_TABLE(L, incoming_port),
1066 BIT_TABLE(L, lost_incoming_connection),
1067 BIT_TABLE(L, millisec),
1068 BIT_TABLE(L, msg_id),
1069 BIT_TABLE(L, msg_id_created),
1070 BIT_TABLE(L, outgoing_interface),
1071 BIT_TABLE(L, outgoing_port),
1072 BIT_TABLE(L, pid),
1073 BIT_TABLE(L, pipelining),
1074 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1075 BIT_TABLE(L, proxy),
1076 #endif
1077 BIT_TABLE(L, queue_run),
1078 BIT_TABLE(L, queue_time),
1079 BIT_TABLE(L, queue_time_overall),
1080 BIT_TABLE(L, receive_time),
1081 BIT_TABLE(L, received_recipients),
1082 BIT_TABLE(L, received_sender),
1083 BIT_TABLE(L, rejected_header),
1084 { US"rejected_headers", Li_rejected_header },
1085 BIT_TABLE(L, retry_defer),
1086 BIT_TABLE(L, return_path_on_delivery),
1087 BIT_TABLE(L, sender_on_delivery),
1088 BIT_TABLE(L, sender_verify_fail),
1089 BIT_TABLE(L, size_reject),
1090 BIT_TABLE(L, skip_delivery),
1091 BIT_TABLE(L, smtp_confirmation),
1092 BIT_TABLE(L, smtp_connection),
1093 BIT_TABLE(L, smtp_incomplete_transaction),
1094 BIT_TABLE(L, smtp_mailauth),
1095 BIT_TABLE(L, smtp_no_mail),
1096 BIT_TABLE(L, smtp_protocol_error),
1097 BIT_TABLE(L, smtp_syntax_error),
1098 BIT_TABLE(L, subject),
1099 BIT_TABLE(L, tls_certificate_verified),
1100 BIT_TABLE(L, tls_cipher),
1101 BIT_TABLE(L, tls_peerdn),
1102 BIT_TABLE(L, tls_resumption),
1103 BIT_TABLE(L, tls_sni),
1104 BIT_TABLE(L, unknown_in_list),
1105 };
1106 int log_options_count = nelem(log_options);
1107
1108 int log_reject_target = 0;
1109 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1110 uschar *log_selector_string = NULL;
1111 FILE *log_stderr = NULL;
1112 uschar *login_sender_address = NULL;
1113 uschar *lookup_dnssec_authenticated = NULL;
1114 int lookup_open_max = 25;
1115 uschar *lookup_value = NULL;
1116
1117 macro_item *macros_user = NULL;
1118 uschar *mailstore_basename = NULL;
1119 #ifdef WITH_CONTENT_SCAN
1120 uschar *malware_name = NULL; /* Virus Name */
1121 #endif
1122 int max_received_linelength= 0;
1123 int max_username_length = 0;
1124 int message_age = 0;
1125 uschar *message_body = NULL;
1126 uschar *message_body_end = NULL;
1127 int message_body_size = 0;
1128 int message_body_visible = 500;
1129 int message_ended = END_NOTSTARTED;
1130 uschar *message_headers = NULL;
1131 uschar *message_id;
1132 uschar *message_id_domain = NULL;
1133 uschar *message_id_text = NULL;
1134 struct timeval message_id_tv = { 0, 0 };
1135 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1136 uschar *message_id_external;
1137 int message_linecount = 0;
1138 int message_size = 0;
1139 uschar *message_size_limit = US"50M";
1140 #ifdef SUPPORT_I18N
1141 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1142 #endif
1143 uschar message_subdir[2] = { 0, 0 };
1144 uschar *message_reference = NULL;
1145
1146 /* MIME ACL expandables */
1147 #ifdef WITH_CONTENT_SCAN
1148 int mime_anomaly_level = 0;
1149 const uschar *mime_anomaly_text = NULL;
1150 uschar *mime_boundary = NULL;
1151 uschar *mime_charset = NULL;
1152 uschar *mime_content_description = NULL;
1153 uschar *mime_content_disposition = NULL;
1154 uschar *mime_content_id = NULL;
1155 unsigned int mime_content_size = 0;
1156 uschar *mime_content_transfer_encoding = NULL;
1157 uschar *mime_content_type = NULL;
1158 uschar *mime_decoded_filename = NULL;
1159 uschar *mime_filename = NULL;
1160 int mime_is_multipart = 0;
1161 int mime_is_coverletter = 0;
1162 int mime_is_rfc822 = 0;
1163 int mime_part_count = -1;
1164 #endif
1165
1166 uid_t *never_users = NULL;
1167 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1168
1169 const int on = 1; /* for setsockopt */
1170 const int off = 0;
1171
1172 uid_t original_euid;
1173 gid_t originator_gid;
1174 uschar *originator_login = NULL;
1175 uschar *originator_name = NULL;
1176 uid_t originator_uid;
1177 uschar *override_local_interfaces = NULL;
1178 uschar *override_pid_file_path = NULL;
1179
1180 uschar *percent_hack_domains = NULL;
1181 uschar *pid_file_path = US PID_FILE_PATH
1182 "\0<--------------Space to patch pid_file_path->";
1183 #ifndef DISABLE_PIPE_CONNECT
1184 uschar *pipe_connect_advertise_hosts = US"*";
1185 #endif
1186 uschar *pipelining_advertise_hosts = US"*";
1187 uschar *primary_hostname = NULL;
1188 uschar *process_info;
1189 int process_info_len = 0;
1190 uschar *process_log_path = NULL;
1191 const uschar *process_purpose = US"fresh-exec";
1192
1193 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1194 uschar *hosts_proxy = NULL;
1195 uschar *proxy_external_address = NULL;
1196 int proxy_external_port = 0;
1197 uschar *proxy_local_address = NULL;
1198 int proxy_local_port = 0;
1199 #endif
1200
1201 uschar *prvscheck_address = NULL;
1202 uschar *prvscheck_keynum = NULL;
1203 uschar *prvscheck_result = NULL;
1204
1205
1206 const uschar *qualify_domain_recipient = NULL;
1207 uschar *qualify_domain_sender = NULL;
1208 uschar *queue_domains = NULL;
1209 int queue_interval = -1;
1210 uschar *queue_name = US"";
1211 uschar *queue_name_dest = NULL;
1212 uschar *queue_only_file = NULL;
1213 int queue_only_load = -1;
1214 uschar *queue_run_max = US"5";
1215 pid_t queue_run_pid = (pid_t)0;
1216 int queue_run_pipe = -1;
1217 unsigned queue_size = 0;
1218 time_t queue_size_next = 0;
1219 uschar *queue_smtp_domains = NULL;
1220
1221 uint32_t random_seed = 0;
1222 tree_node *ratelimiters_cmd = NULL;
1223 tree_node *ratelimiters_conn = NULL;
1224 tree_node *ratelimiters_mail = NULL;
1225 uschar *raw_active_hostname = NULL;
1226 uschar *raw_sender = NULL;
1227 uschar **raw_recipients = NULL;
1228 int raw_recipients_count = 0;
1229
1230 int rcpt_count = 0;
1231 int rcpt_fail_count = 0;
1232 int rcpt_defer_count = 0;
1233 gid_t real_gid;
1234 uid_t real_uid;
1235 int receive_linecount = 0;
1236 int receive_messagecount = 0;
1237 int receive_timeout = 0;
1238 int received_count = 0;
1239 uschar *received_for = NULL;
1240
1241 /* This is the default text for Received headers generated by Exim. The
1242 date will be automatically added on the end. */
1243
1244 uschar *received_header_text = US
1245 "Received: "
1246 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1247 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1248 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1249 "by $primary_hostname "
1250 "${if def:received_protocol {with $received_protocol }}"
1251 #ifndef DISABLE_TLS
1252 "${if def:tls_in_ver { ($tls_in_ver)}}"
1253 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1254 #endif
1255 "(Exim $version_number)\n\t"
1256 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1257 "id $message_exim_id"
1258 "${if def:received_for {\n\tfor $received_for}}"
1259 "\0<---------------Space to patch received_header_text->";
1260
1261 int received_headers_max = 30;
1262 uschar *received_protocol = NULL;
1263 struct timeval received_time = { 0, 0 };
1264 struct timeval received_time_taken = { 0, 0 };
1265 uschar *recipient_data = NULL;
1266 uschar *recipient_unqualified_hosts = NULL;
1267 uschar *recipient_verify_failure = NULL;
1268 int recipients_count = 0;
1269 recipient_item *recipients_list = NULL;
1270 int recipients_list_max = 0;
1271 int recipients_max = 0;
1272 const pcre *regex_AUTH = NULL;
1273 const pcre *regex_check_dns_names = NULL;
1274 const pcre *regex_From = NULL;
1275 const pcre *regex_IGNOREQUOTA = NULL;
1276 const pcre *regex_PIPELINING = NULL;
1277 const pcre *regex_SIZE = NULL;
1278 #ifndef DISABLE_PIPE_CONNECT
1279 const pcre *regex_EARLY_PIPE = NULL;
1280 #endif
1281 const pcre *regex_ismsgid = NULL;
1282 const pcre *regex_smtp_code = NULL;
1283 uschar *regex_vars[REGEX_VARS];
1284 #ifdef WHITELIST_D_MACROS
1285 const pcre *regex_whitelisted_macro = NULL;
1286 #endif
1287 #ifdef WITH_CONTENT_SCAN
1288 uschar *regex_match_string = NULL;
1289 #endif
1290 int remote_delivery_count = 0;
1291 int remote_max_parallel = 2;
1292 uschar *remote_sort_domains = NULL;
1293 int retry_data_expire = 7*24*60*60;
1294 int retry_interval_max = 24*60*60;
1295 int retry_maximum_timeout = 0; /* set from retry config */
1296 retry_config *retries = NULL;
1297 uschar *return_path = NULL;
1298 int rewrite_existflags = 0;
1299 uschar *rfc1413_hosts = US"@[]";
1300 int rfc1413_query_timeout = 0;
1301 uid_t root_gid = ROOT_GID;
1302 uid_t root_uid = ROOT_UID;
1303
1304 router_instance *routers = NULL;
1305 router_instance router_defaults = {
1306 .next = NULL,
1307 .name = NULL,
1308 .info = NULL,
1309 .options_block = NULL,
1310 .driver_name = NULL,
1311
1312 .address_data = NULL,
1313 #ifdef EXPERIMENTAL_BRIGHTMAIL
1314 .bmi_rule = NULL,
1315 #endif
1316 .cannot_route_message = NULL,
1317 .condition = NULL,
1318 .current_directory = NULL,
1319 .debug_string = NULL,
1320 .domains = NULL,
1321 .errors_to = NULL,
1322 .expand_gid = NULL,
1323 .expand_uid = NULL,
1324 .expand_more = NULL,
1325 .expand_unseen = NULL,
1326 .extra_headers = NULL,
1327 .fallback_hosts = NULL,
1328 .home_directory = NULL,
1329 .ignore_target_hosts = NULL,
1330 .local_parts = NULL,
1331 .pass_router_name = NULL,
1332 .prefix = NULL,
1333 .redirect_router_name = NULL,
1334 .remove_headers = NULL,
1335 .require_files = NULL,
1336 .router_home_directory = NULL,
1337 .self = US"freeze",
1338 .senders = NULL,
1339 .suffix = NULL,
1340 .translate_ip_address = NULL,
1341 .transport_name = NULL,
1342
1343 .address_test = TRUE,
1344 #ifdef EXPERIMENTAL_BRIGHTMAIL
1345 .bmi_deliver_alternate = FALSE,
1346 .bmi_deliver_default = FALSE,
1347 .bmi_dont_deliver = FALSE,
1348 #endif
1349 .expn = TRUE,
1350 .caseful_local_part = FALSE,
1351 .check_local_user = FALSE,
1352 .disable_logging = FALSE,
1353 .fail_verify_recipient = FALSE,
1354 .fail_verify_sender = FALSE,
1355 .gid_set = FALSE,
1356 .initgroups = FALSE,
1357 .log_as_local = TRUE_UNSET,
1358 .more = TRUE,
1359 .pass_on_timeout = FALSE,
1360 .prefix_optional = FALSE,
1361 .repeat_use = TRUE,
1362 .retry_use_local_part = TRUE_UNSET,
1363 .same_domain_copy_routing = FALSE,
1364 .self_rewrite = FALSE,
1365 .set = NULL,
1366 .suffix_optional = FALSE,
1367 .verify_only = FALSE,
1368 .verify_recipient = TRUE,
1369 .verify_sender = TRUE,
1370 .uid_set = FALSE,
1371 .unseen = FALSE,
1372 .dsn_lasthop = FALSE,
1373
1374 .self_code = self_freeze,
1375 .uid = (uid_t)(-1),
1376 .gid = (gid_t)(-1),
1377
1378 .fallback_hostlist = NULL,
1379 .transport = NULL,
1380 .pass_router = NULL,
1381 .redirect_router = NULL,
1382
1383 .dnssec = { .request= US"*", .require=NULL },
1384 };
1385
1386 uschar *router_name = NULL;
1387 tree_node *router_var = NULL;
1388
1389 ip_address_item *running_interfaces = NULL;
1390
1391 /* This is a weird one. The following string gets patched in the binary by the
1392 script that sets up a copy of Exim for running in the test harness. It seems
1393 that compilers are now clever, and share constant strings if they can.
1394 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1395 make use of the end of this string in order to save space. So the patching then
1396 wrecks this. We defeat this optimization by adding some additional characters
1397 onto the end of the string. */
1398
1399 uschar *running_status = US">>>running<<<" "\0EXTRA";
1400
1401 int runrc = 0;
1402
1403 uschar *search_error_message = NULL;
1404 uschar *self_hostname = NULL;
1405 uschar *sender_address = NULL;
1406 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1407 uschar *sender_address_data = NULL;
1408 uschar *sender_address_unrewritten = NULL;
1409 uschar *sender_data = NULL;
1410 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1411 uschar *sender_fullhost = NULL;
1412 uschar *sender_helo_name = NULL;
1413 uschar **sender_host_aliases = &no_aliases;
1414 uschar *sender_host_address = NULL;
1415 uschar *sender_host_authenticated = NULL;
1416 uschar *sender_host_auth_pubname = NULL;
1417 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1418 uschar *sender_host_name = NULL;
1419 int sender_host_port = 0;
1420 uschar *sender_ident = NULL;
1421 uschar *sender_rate = NULL;
1422 uschar *sender_rate_limit = NULL;
1423 uschar *sender_rate_period = NULL;
1424 uschar *sender_rcvhost = NULL;
1425 uschar *sender_unqualified_hosts = NULL;
1426 uschar *sender_verify_failure = NULL;
1427 address_item *sender_verified_list = NULL;
1428 address_item *sender_verified_failed = NULL;
1429 int sender_verified_rc = -1;
1430 uschar *sending_ip_address = NULL;
1431 int sending_port = -1;
1432 SIGNAL_BOOL sigalrm_seen = FALSE;
1433 const uschar *sigalarm_setter = NULL;
1434 uschar **sighup_argv = NULL;
1435 int slow_lookup_log = 0; /* millisecs, zero disables */
1436 int smtp_accept_count = 0;
1437 int smtp_accept_max = 20;
1438 int smtp_accept_max_nonmail= 10;
1439 uschar *smtp_accept_max_nonmail_hosts = US"*";
1440 int smtp_accept_max_per_connection = 1000;
1441 uschar *smtp_accept_max_per_host = NULL;
1442 int smtp_accept_queue = 0;
1443 int smtp_accept_queue_per_connection = 10;
1444 int smtp_accept_reserve = 0;
1445 uschar *smtp_active_hostname = NULL;
1446 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1447 "Exim $version_number $tod_full"
1448 "\0<---------------Space to patch smtp_banner->";
1449 int smtp_ch_index = 0;
1450 uschar *smtp_cmd_argument = NULL;
1451 uschar *smtp_cmd_buffer = NULL;
1452 struct timeval smtp_connection_start = {0,0};
1453 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1454 int smtp_connect_backlog = 20;
1455 double smtp_delay_mail = 0.0;
1456 double smtp_delay_rcpt = 0.0;
1457 FILE *smtp_in = NULL;
1458 int smtp_load_reserve = -1;
1459 int smtp_mailcmd_count = 0;
1460 FILE *smtp_out = NULL;
1461 uschar *smtp_etrn_command = NULL;
1462 int smtp_max_synprot_errors= 3;
1463 int smtp_max_unknown_commands = 3;
1464 uschar *smtp_notquit_reason = NULL;
1465 uschar *smtp_ratelimit_hosts = NULL;
1466 uschar *smtp_ratelimit_mail = NULL;
1467 uschar *smtp_ratelimit_rcpt = NULL;
1468 uschar *smtp_read_error = US"";
1469 int smtp_receive_timeout = 5*60;
1470 uschar *smtp_receive_timeout_s = NULL;
1471 uschar *smtp_reserve_hosts = NULL;
1472 int smtp_rlm_base = 0;
1473 double smtp_rlm_factor = 0.0;
1474 int smtp_rlm_limit = 0;
1475 int smtp_rlm_threshold = INT_MAX;
1476 int smtp_rlr_base = 0;
1477 double smtp_rlr_factor = 0.0;
1478 int smtp_rlr_limit = 0;
1479 int smtp_rlr_threshold = INT_MAX;
1480 unsigned smtp_peer_options = 0;
1481 unsigned smtp_peer_options_wrap= 0;
1482 #ifdef SUPPORT_I18N
1483 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1484 #endif
1485
1486 #ifdef WITH_CONTENT_SCAN
1487 uschar *spamd_address = US"127.0.0.1 783";
1488 uschar *spam_bar = NULL;
1489 uschar *spam_report = NULL;
1490 uschar *spam_action = NULL;
1491 uschar *spam_score = NULL;
1492 uschar *spam_score_int = NULL;
1493 #endif
1494 #ifdef SUPPORT_SPF
1495 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1496 uschar *spf_header_comment = NULL;
1497 uschar *spf_received = NULL;
1498 uschar *spf_result = NULL;
1499 uschar *spf_smtp_comment = NULL;
1500 #endif
1501
1502 FILE *spool_data_file = NULL;
1503 uschar *spool_directory = US SPOOL_DIRECTORY
1504 "\0<--------------Space to patch spool_directory->";
1505 #ifdef EXPERIMENTAL_SRS
1506 uschar *srs_config = NULL;
1507 uschar *srs_db_address = NULL;
1508 uschar *srs_db_key = NULL;
1509 int srs_hashlength = 6;
1510 int srs_hashmin = -1;
1511 int srs_maxage = 31;
1512 uschar *srs_orig_recipient = NULL;
1513 uschar *srs_orig_sender = NULL;
1514 uschar *srs_recipient = NULL;
1515 uschar *srs_secrets = NULL;
1516 uschar *srs_status = NULL;
1517 #endif
1518 #ifdef EXPERIMENTAL_SRS_NATIVE
1519 uschar *srs_recipient = NULL;
1520 #endif
1521 int string_datestamp_offset= -1;
1522 int string_datestamp_length= 0;
1523 int string_datestamp_type = -1;
1524 uschar *submission_domain = NULL;
1525 uschar *submission_name = NULL;
1526 int syslog_facility = LOG_MAIL;
1527 uschar *syslog_processname = US"exim";
1528 uschar *system_filter = NULL;
1529
1530 uschar *system_filter_directory_transport = NULL;
1531 uschar *system_filter_file_transport = NULL;
1532 uschar *system_filter_pipe_transport = NULL;
1533 uschar *system_filter_reply_transport = NULL;
1534
1535 gid_t system_filter_gid = 0;
1536 uid_t system_filter_uid = (uid_t)-1;
1537
1538 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1539 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1540 #ifdef USE_TCP_WRAPPERS
1541 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1542 #endif
1543 int test_harness_load_avg = 0;
1544 int thismessage_size_limit = 0;
1545 int timeout_frozen_after = 0;
1546 #ifdef MEASURE_TIMING
1547 struct timeval timestamp_startup;
1548 #endif
1549
1550 transport_instance *transports = NULL;
1551
1552 transport_instance transport_defaults = {
1553 .next = NULL,
1554 .name = NULL,
1555 .info = NULL,
1556 .options_block = NULL,
1557 .driver_name = NULL,
1558 .setup = NULL,
1559 .batch_max = 1,
1560 .batch_id = NULL,
1561 .home_dir = NULL,
1562 .current_dir = NULL,
1563 .expand_multi_domain = NULL,
1564 .multi_domain = TRUE,
1565 .overrides_hosts = FALSE,
1566 .max_addresses = 100,
1567 .connection_max_messages = 500,
1568 .deliver_as_creator = FALSE,
1569 .disable_logging = FALSE,
1570 .initgroups = FALSE,
1571 .uid_set = FALSE,
1572 .gid_set = FALSE,
1573 .uid = (uid_t)(-1),
1574 .gid = (gid_t)(-1),
1575 .expand_uid = NULL,
1576 .expand_gid = NULL,
1577 .warn_message = NULL,
1578 .shadow = NULL,
1579 .shadow_condition = NULL,
1580 .filter_command = NULL,
1581 .add_headers = NULL,
1582 .remove_headers = NULL,
1583 .return_path = NULL,
1584 .debug_string = NULL,
1585 .max_parallel = NULL,
1586 .message_size_limit = NULL,
1587 .headers_rewrite = NULL,
1588 .rewrite_rules = NULL,
1589 .rewrite_existflags = 0,
1590 .filter_timeout = 300,
1591 .body_only = FALSE,
1592 .delivery_date_add = FALSE,
1593 .envelope_to_add = FALSE,
1594 .headers_only = FALSE,
1595 .rcpt_include_affixes = FALSE,
1596 .return_path_add = FALSE,
1597 .return_output = FALSE,
1598 .return_fail_output = FALSE,
1599 .log_output = FALSE,
1600 .log_fail_output = FALSE,
1601 .log_defer_output = FALSE,
1602 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1603 1 nor 0 so can detect unset */
1604 #ifndef DISABLE_EVENT
1605 .event_action = NULL
1606 #endif
1607 };
1608
1609 int transport_count;
1610 uschar *transport_name = NULL;
1611 int transport_newlines;
1612 const uschar **transport_filter_argv = NULL;
1613 int transport_filter_timeout;
1614 int transport_write_timeout= 0;
1615
1616 tree_node *tree_dns_fails = NULL;
1617 tree_node *tree_duplicates = NULL;
1618 tree_node *tree_nonrecipients = NULL;
1619 tree_node *tree_unusable = NULL;
1620
1621 gid_t *trusted_groups = NULL;
1622 uid_t *trusted_users = NULL;
1623 uschar *timezone_string = US TIMEZONE_DEFAULT;
1624
1625 uschar *unknown_login = NULL;
1626 uschar *unknown_username = NULL;
1627 uschar *untrusted_set_sender = NULL;
1628
1629 /* A regex for matching a "From_" line in an incoming message, in the form
1630
1631 From ph10 Fri Jan 5 12:35 GMT 1996
1632
1633 which the "mail" commands send to the MTA (undocumented, of course), or in
1634 the form
1635
1636 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1637
1638 which is apparently used by some UUCPs, despite it not being in RFC 976.
1639 Because of variations in time formats, just match up to the minutes. That
1640 should be sufficient. Examples have been seen of time fields like 12:1:03,
1641 so just require one digit for hours and minutes. The weekday is also absent
1642 in some forms. */
1643
1644 uschar *uucp_from_pattern = US
1645 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1646 "(?:" /* Non-extracting bracket */
1647 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1648 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1649 ")" /* End alternation */
1650 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1651
1652 uschar *uucp_from_sender = US"$1";
1653
1654 uschar *verify_mode = NULL;
1655 uschar *version_copyright =
1656 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1657 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1658 uschar *version_date = US"?";
1659 uschar *version_cnumber = US"????";
1660 uschar *version_string = US"?";
1661
1662 uschar *warn_message_file = NULL;
1663 int warning_count = 0;
1664 uschar *warnmsg_delay = NULL;
1665 uschar *warnmsg_recipients = NULL;
1666
1667
1668 /* End of globals.c */