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[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 /* Copyright (c) The Exim Maintainers 2020 */
7 /* See the file NOTICE for conditions of use and distribution. */
8
9 /* All the global variables are defined together in this one module, so
10 that they are easy to find. */
11
12 #include "exim.h"
13
14
15 /* Generic options for auths, all of which live inside auth_instance
16 data blocks and hence have the opt_public flag set. */
17
18 optionlist optionlist_auths[] = {
19 { "client_condition", opt_stringptr | opt_public,
20 OPT_OFF(auth_instance, client_condition) },
21 { "client_set_id", opt_stringptr | opt_public,
22 OPT_OFF(auth_instance, set_client_id) },
23 { "driver", opt_stringptr | opt_public,
24 OPT_OFF(auth_instance, driver_name) },
25 { "public_name", opt_stringptr | opt_public,
26 OPT_OFF(auth_instance, public_name) },
27 { "server_advertise_condition", opt_stringptr | opt_public,
28 OPT_OFF(auth_instance, advertise_condition)},
29 { "server_condition", opt_stringptr | opt_public,
30 OPT_OFF(auth_instance, server_condition) },
31 { "server_debug_print", opt_stringptr | opt_public,
32 OPT_OFF(auth_instance, server_debug_string) },
33 { "server_mail_auth_condition", opt_stringptr | opt_public,
34 OPT_OFF(auth_instance, mail_auth_condition) },
35 { "server_set_id", opt_stringptr | opt_public,
36 OPT_OFF(auth_instance, set_id) }
37 };
38
39 int optionlist_auths_size = nelem(optionlist_auths);
40
41 /* An empty host aliases list. */
42
43 uschar *no_aliases = NULL;
44
45
46 /* For comments on these variables, see globals.h. I'm too idle to
47 duplicate them here... */
48
49 #ifdef EXIM_PERL
50 uschar *opt_perl_startup = NULL;
51 BOOL opt_perl_at_start = FALSE;
52 BOOL opt_perl_started = FALSE;
53 BOOL opt_perl_taintmode = FALSE;
54 #endif
55
56 #ifdef EXPAND_DLFUNC
57 tree_node *dlobj_anchor = NULL;
58 #endif
59
60 #ifdef LOOKUP_IBASE
61 uschar *ibase_servers = NULL;
62 #endif
63
64 #ifdef LOOKUP_LDAP
65 uschar *eldap_ca_cert_dir = NULL;
66 uschar *eldap_ca_cert_file = NULL;
67 uschar *eldap_cert_file = NULL;
68 uschar *eldap_cert_key = NULL;
69 uschar *eldap_cipher_suite = NULL;
70 uschar *eldap_default_servers = NULL;
71 uschar *eldap_require_cert = NULL;
72 int eldap_version = -1;
73 BOOL eldap_start_tls = FALSE;
74 #endif
75
76 #ifdef LOOKUP_MYSQL
77 uschar *mysql_servers = NULL;
78 #endif
79
80 #ifdef LOOKUP_ORACLE
81 uschar *oracle_servers = NULL;
82 #endif
83
84 #ifdef LOOKUP_PGSQL
85 uschar *pgsql_servers = NULL;
86 #endif
87
88 #ifdef LOOKUP_REDIS
89 uschar *redis_servers = NULL;
90 #endif
91
92 #ifdef LOOKUP_SQLITE
93 uschar *sqlite_dbfile = NULL;
94 int sqlite_lock_timeout = 5;
95 #endif
96
97 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
98 BOOL move_frozen_messages = FALSE;
99 #endif
100
101 /* These variables are outside the #ifdef because it keeps the code less
102 cluttered in several places (e.g. during logging) if we can always refer to
103 them. Also, the tls_ variables are now always visible. Note that these are
104 only used for smtp connections, not for service-daemon access. */
105
106 tls_support tls_in = {
107 .active = {.sock = -1}
108 /* all other elements zero */
109 };
110 tls_support tls_out = {
111 .active = {.sock = -1},
112 /* all other elements zero */
113 };
114
115 uschar *dsn_envid = NULL;
116 int dsn_ret = 0;
117 const pcre *regex_DSN = NULL;
118 uschar *dsn_advertise_hosts = NULL;
119
120 #ifndef DISABLE_TLS
121 BOOL gnutls_compat_mode = FALSE;
122 BOOL gnutls_allow_auto_pkcs11 = FALSE;
123 uschar *openssl_options = NULL;
124 const pcre *regex_STARTTLS = NULL;
125 uschar *tls_advertise_hosts = US"*";
126 uschar *tls_certificate = NULL;
127 uschar *tls_crl = NULL;
128 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
129 that's the interop problem which has been observed: GnuTLS suggesting a higher
130 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
131 int tls_dh_max_bits = 2236;
132 uschar *tls_dhparam = NULL;
133 uschar *tls_eccurve = US"auto";
134 # ifndef DISABLE_OCSP
135 uschar *tls_ocsp_file = NULL;
136 # endif
137 uschar *tls_privatekey = NULL;
138 BOOL tls_remember_esmtp = FALSE;
139 uschar *tls_require_ciphers = NULL;
140 # ifdef EXPERIMENTAL_TLS_RESUME
141 uschar *tls_resumption_hosts = NULL;
142 # endif
143 uschar *tls_try_verify_hosts = NULL;
144 uschar *tls_verify_certificates= US"system";
145 uschar *tls_verify_hosts = NULL;
146 #else /*DISABLE_TLS*/
147 uschar *tls_advertise_hosts = NULL;
148 #endif
149
150 #ifndef DISABLE_PRDR
151 /* Per Recipient Data Response variables */
152 BOOL prdr_enable = FALSE;
153 BOOL prdr_requested = FALSE;
154 const pcre *regex_PRDR = NULL;
155 #endif
156
157 #ifdef SUPPORT_I18N
158 const pcre *regex_UTF8 = NULL;
159 #endif
160
161 /* Input-reading functions for messages, so we can use special ones for
162 incoming TCP/IP. The defaults use stdin. We never need these for any
163 stand-alone tests. */
164
165 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
166 int (*lwr_receive_getc)(unsigned) = stdin_getc;
167 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
168 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
169 int (*receive_getc)(unsigned) = stdin_getc;
170 uschar * (*receive_getbuf)(unsigned *) = NULL;
171 void (*receive_get_cache)(void)= NULL;
172 int (*receive_ungetc)(int) = stdin_ungetc;
173 int (*receive_feof)(void) = stdin_feof;
174 int (*receive_ferror)(void) = stdin_ferror;
175 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
176 #endif
177
178
179 /* List of per-address expansion variables for clearing and saving/restoring
180 when verifying one address while routing/verifying another. We have to have
181 the size explicit, because it is referenced from more than one module. */
182
183 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
184 CUSS &deliver_address_data,
185 CUSS &deliver_domain,
186 CUSS &deliver_domain_data,
187 CUSS &deliver_domain_orig,
188 CUSS &deliver_domain_parent,
189 CUSS &deliver_localpart,
190 CUSS &deliver_localpart_data,
191 CUSS &deliver_localpart_orig,
192 CUSS &deliver_localpart_parent,
193 CUSS &deliver_localpart_prefix,
194 CUSS &deliver_localpart_suffix,
195 CUSS (uschar **)(&deliver_recipients),
196 CUSS &deliver_host,
197 CUSS &deliver_home,
198 CUSS &address_file,
199 CUSS &address_pipe,
200 CUSS &self_hostname,
201 NULL };
202
203 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
204
205 /******************************************************************************/
206 /* General global variables. Boolean flags are done as a group
207 so that only one bit each is needed, packed, for all those we never
208 need to take a pointer - and only a char for the rest.
209 This means a struct, unfortunately since it clutters the sourcecode. */
210
211 struct global_flags f =
212 {
213 .acl_temp_details = FALSE,
214 .active_local_from_check = FALSE,
215 .active_local_sender_retain = FALSE,
216 .address_test_mode = FALSE,
217 .admin_user = FALSE,
218 .allow_auth_unadvertised= FALSE,
219 .allow_unqualified_recipient = TRUE, /* For local messages */
220 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
221 .authentication_local = FALSE,
222
223 .background_daemon = TRUE,
224
225 .chunking_offered = FALSE,
226 .config_changed = FALSE,
227 .continue_more = FALSE,
228
229 .daemon_listen = FALSE,
230 .debug_daemon = FALSE,
231 .deliver_firsttime = FALSE,
232 .deliver_force = FALSE,
233 .deliver_freeze = FALSE,
234 .deliver_force_thaw = FALSE,
235 .deliver_manual_thaw = FALSE,
236 .deliver_selectstring_regex = FALSE,
237 .deliver_selectstring_sender_regex = FALSE,
238 .disable_callout_flush = FALSE,
239 .disable_delay_flush = FALSE,
240 .disable_logging = FALSE,
241 #ifndef DISABLE_DKIM
242 .dkim_disable_verify = FALSE,
243 .dkim_init_done = FALSE,
244 #endif
245 #ifdef SUPPORT_DMARC
246 .dmarc_has_been_checked = FALSE,
247 .dmarc_disable_verify = FALSE,
248 .dmarc_enable_forensic = FALSE,
249 #endif
250 .dont_deliver = FALSE,
251 .dot_ends = TRUE,
252
253 .enable_dollar_recipients = FALSE,
254 .expand_string_forcedfail = FALSE,
255
256 .filter_running = FALSE,
257
258 .header_rewritten = FALSE,
259 .helo_verified = FALSE,
260 .helo_verify_failed = FALSE,
261 .host_checking_callout = FALSE,
262 .host_find_failed_syntax= FALSE,
263
264 .inetd_wait_mode = FALSE,
265 .is_inetd = FALSE,
266
267 .local_error_message = FALSE,
268 .log_testing_mode = FALSE,
269
270 #ifdef WITH_CONTENT_SCAN
271 .no_mbox_unspool = FALSE,
272 #endif
273 .no_multiline_responses = FALSE,
274
275 .parse_allow_group = FALSE,
276 .parse_found_group = FALSE,
277 .pipelining_enable = TRUE,
278 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
279 .proxy_session_failed = FALSE,
280 #endif
281
282 .queue_2stage = FALSE,
283 .queue_only_policy = FALSE,
284 .queue_run_first_delivery = FALSE,
285 .queue_run_force = FALSE,
286 .queue_run_local = FALSE,
287 .queue_running = FALSE,
288 .queue_smtp = FALSE,
289
290 .really_exim = TRUE,
291 .receive_call_bombout = FALSE,
292 .recipients_discarded = FALSE,
293 .running_in_test_harness = FALSE,
294
295 .search_find_defer = FALSE,
296 .sender_address_forced = FALSE,
297 .sender_host_notsocket = FALSE,
298 .sender_host_unknown = FALSE,
299 .sender_local = FALSE,
300 .sender_name_forced = FALSE,
301 .sender_set_untrusted = FALSE,
302 .smtp_authenticated = FALSE,
303 #ifndef DISABLE_PIPE_CONNECT
304 .smtp_in_early_pipe_advertised = FALSE,
305 .smtp_in_early_pipe_no_auth = FALSE,
306 .smtp_in_early_pipe_used = FALSE,
307 #endif
308 .smtp_in_pipelining_advertised = FALSE,
309 .smtp_in_pipelining_used = FALSE,
310 .spool_file_wireformat = FALSE,
311 .submission_mode = FALSE,
312 .suppress_local_fixups = FALSE,
313 .suppress_local_fixups_default = FALSE,
314 .synchronous_delivery = FALSE,
315 .system_filtering = FALSE,
316
317 .taint_check_slow = FALSE,
318 .testsuite_delays = TRUE,
319 .tcp_fastopen_ok = FALSE,
320 .tcp_in_fastopen = FALSE,
321 .tcp_in_fastopen_data = FALSE,
322 .tcp_in_fastopen_logged = FALSE,
323 .tcp_out_fastopen_logged= FALSE,
324 .timestamps_utc = FALSE,
325 .transport_filter_timed_out = FALSE,
326 .trusted_caller = FALSE,
327 .trusted_config = TRUE,
328 };
329
330 /******************************************************************************/
331 /* These are the flags which are either variables or mainsection options,
332 so an address is needed for access, or are exported to local_scan. */
333
334 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
335 BOOL allow_domain_literals = FALSE;
336 BOOL allow_mx_to_ip = FALSE;
337 BOOL allow_utf8_domains = FALSE;
338 BOOL authentication_failed = FALSE;
339
340 BOOL bounce_return_body = TRUE;
341 BOOL bounce_return_message = TRUE;
342 BOOL check_rfc2047_length = TRUE;
343 BOOL commandline_checks_require_admin = FALSE;
344
345 #ifdef EXPERIMENTAL_DCC
346 BOOL dcc_direct_add_header = FALSE;
347 #endif
348 BOOL debug_store = FALSE;
349 BOOL delivery_date_remove = TRUE;
350 BOOL deliver_drop_privilege = FALSE;
351 #ifdef ENABLE_DISABLE_FSYNC
352 BOOL disable_fsync = FALSE;
353 #endif
354 BOOL disable_ipv6 = FALSE;
355 BOOL dns_csa_use_reverse = TRUE;
356 BOOL drop_cr = FALSE; /* No longer used */
357
358 BOOL envelope_to_remove = TRUE;
359 BOOL exim_gid_set = TRUE; /* This gid is always set */
360 BOOL exim_uid_set = TRUE; /* This uid is always set */
361 BOOL extract_addresses_remove_arguments = TRUE;
362
363 BOOL host_checking = FALSE;
364 BOOL host_lookup_deferred = FALSE;
365 BOOL host_lookup_failed = FALSE;
366 BOOL ignore_fromline_local = FALSE;
367
368 BOOL local_from_check = TRUE;
369 BOOL local_sender_retain = FALSE;
370 BOOL log_timezone = FALSE;
371 BOOL message_body_newlines = FALSE;
372 BOOL message_logs = TRUE;
373 #ifdef SUPPORT_I18N
374 BOOL message_smtputf8 = FALSE;
375 #endif
376 BOOL mua_wrapper = FALSE;
377
378 BOOL preserve_message_logs = FALSE;
379 BOOL print_topbitchars = FALSE;
380 BOOL prod_requires_admin = TRUE;
381 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
382 BOOL proxy_session = FALSE;
383 #endif
384
385 #ifdef EXPERIMENTAL_QUEUE_RAMP
386 BOOL queue_fast_ramp = FALSE;
387 #endif
388 BOOL queue_list_requires_admin = TRUE;
389 BOOL queue_only = FALSE;
390 BOOL queue_only_load_latch = TRUE;
391 BOOL queue_only_override = TRUE;
392 BOOL queue_run_in_order = FALSE;
393 BOOL recipients_max_reject = FALSE;
394 BOOL return_path_remove = TRUE;
395
396 BOOL smtp_batched_input = FALSE;
397 BOOL sender_helo_dnssec = FALSE;
398 BOOL sender_host_dnssec = FALSE;
399 BOOL smtp_accept_keepalive = TRUE;
400 BOOL smtp_check_spool_space = TRUE;
401 BOOL smtp_enforce_sync = TRUE;
402 BOOL smtp_etrn_serialize = TRUE;
403 BOOL smtp_input = FALSE;
404 BOOL smtp_return_error_details = FALSE;
405 #ifdef SUPPORT_SPF
406 BOOL spf_result_guessed = FALSE;
407 #endif
408 BOOL split_spool_directory = FALSE;
409 BOOL spool_wireformat = FALSE;
410 #ifdef EXPERIMENTAL_SRS
411 BOOL srs_usehash = TRUE;
412 BOOL srs_usetimestamp = TRUE;
413 #endif
414 BOOL strict_acl_vars = FALSE;
415 BOOL strip_excess_angle_brackets = FALSE;
416 BOOL strip_trailing_dot = FALSE;
417 BOOL syslog_duplication = TRUE;
418 BOOL syslog_pid = TRUE;
419 BOOL syslog_timestamp = TRUE;
420 BOOL system_filter_gid_set = FALSE;
421 BOOL system_filter_uid_set = FALSE;
422
423 BOOL tcp_nodelay = TRUE;
424 BOOL write_rejectlog = TRUE;
425
426 /******************************************************************************/
427
428 header_line *acl_added_headers = NULL;
429 tree_node *acl_anchor = NULL;
430 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
431 NULL, NULL, NULL, NULL};
432 int acl_narg = 0;
433
434 int acl_level = 0;
435
436 uschar *acl_not_smtp = NULL;
437 #ifdef WITH_CONTENT_SCAN
438 uschar *acl_not_smtp_mime = NULL;
439 #endif
440 uschar *acl_not_smtp_start = NULL;
441 uschar *acl_removed_headers = NULL;
442 uschar *acl_smtp_auth = NULL;
443 uschar *acl_smtp_connect = NULL;
444 uschar *acl_smtp_data = NULL;
445 #ifndef DISABLE_PRDR
446 uschar *acl_smtp_data_prdr = US"accept";
447 #endif
448 #ifndef DISABLE_DKIM
449 uschar *acl_smtp_dkim = NULL;
450 #endif
451 uschar *acl_smtp_etrn = NULL;
452 uschar *acl_smtp_expn = NULL;
453 uschar *acl_smtp_helo = NULL;
454 uschar *acl_smtp_mail = NULL;
455 uschar *acl_smtp_mailauth = NULL;
456 #ifdef WITH_CONTENT_SCAN
457 uschar *acl_smtp_mime = NULL;
458 #endif
459 uschar *acl_smtp_notquit = NULL;
460 uschar *acl_smtp_predata = NULL;
461 uschar *acl_smtp_quit = NULL;
462 uschar *acl_smtp_rcpt = NULL;
463 uschar *acl_smtp_starttls = NULL;
464 uschar *acl_smtp_vrfy = NULL;
465
466 tree_node *acl_var_c = NULL;
467 tree_node *acl_var_m = NULL;
468 uschar *acl_verify_message = NULL;
469 string_item *acl_warn_logged = NULL;
470
471 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
472 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
473
474 uschar *acl_wherenames[] = { US"RCPT",
475 US"MAIL",
476 US"PREDATA",
477 US"MIME",
478 US"DKIM",
479 US"DATA",
480 #ifndef DISABLE_PRDR
481 US"PRDR",
482 #endif
483 US"non-SMTP",
484 US"AUTH",
485 US"connection",
486 US"ETRN",
487 US"EXPN",
488 US"EHLO or HELO",
489 US"MAILAUTH",
490 US"non-SMTP-start",
491 US"NOTQUIT",
492 US"QUIT",
493 US"STARTTLS",
494 US"VRFY",
495 US"delivery",
496 US"unknown"
497 };
498
499 uschar *acl_wherecodes[] = { US"550", /* RCPT */
500 US"550", /* MAIL */
501 US"550", /* PREDATA */
502 US"550", /* MIME */
503 US"550", /* DKIM */
504 US"550", /* DATA */
505 #ifndef DISABLE_PRDR
506 US"550", /* RCPT PRDR */
507 #endif
508 US"0", /* not SMTP; not relevant */
509 US"503", /* AUTH */
510 US"550", /* connect */
511 US"458", /* ETRN */
512 US"550", /* EXPN */
513 US"550", /* HELO/EHLO */
514 US"0", /* MAILAUTH; not relevant */
515 US"0", /* not SMTP; not relevant */
516 US"0", /* NOTQUIT; not relevant */
517 US"0", /* QUIT; not relevant */
518 US"550", /* STARTTLS */
519 US"252", /* VRFY */
520 US"0", /* delivery; not relevant */
521 US"0" /* unknown; not relevant */
522 };
523
524 uschar *add_environment = NULL;
525 address_item *addr_duplicate = NULL;
526
527 address_item address_defaults = {
528 .next = NULL,
529 .parent = NULL,
530 .first = NULL,
531 .dupof = NULL,
532 .start_router = NULL,
533 .router = NULL,
534 .transport = NULL,
535 .host_list = NULL,
536 .host_used = NULL,
537 .fallback_hosts = NULL,
538 .reply = NULL,
539 .retries = NULL,
540 .address = NULL,
541 .unique = NULL,
542 .cc_local_part = NULL,
543 .lc_local_part = NULL,
544 .local_part = NULL,
545 .prefix = NULL,
546 .prefix_v = NULL,
547 .suffix = NULL,
548 .suffix_v = NULL,
549 .domain = NULL,
550 .address_retry_key = NULL,
551 .domain_retry_key = NULL,
552 .current_dir = NULL,
553 .home_dir = NULL,
554 .message = NULL,
555 .user_message = NULL,
556 .onetime_parent = NULL,
557 .pipe_expandn = NULL,
558 .return_filename = NULL,
559 .self_hostname = NULL,
560 .shadow_message = NULL,
561 #ifndef DISABLE_TLS
562 .cipher = NULL,
563 .ourcert = NULL,
564 .peercert = NULL,
565 .peerdn = NULL,
566 .ocsp = OCSP_NOT_REQ,
567 #endif
568 #ifdef EXPERIMENTAL_DSN_INFO
569 .smtp_greeting = NULL,
570 .helo_response = NULL,
571 #endif
572 .authenticator = NULL,
573 .auth_id = NULL,
574 .auth_sndr = NULL,
575 .dsn_orcpt = NULL,
576 .dsn_flags = 0,
577 .dsn_aware = 0,
578 .uid = (uid_t)(-1),
579 .gid = (gid_t)(-1),
580 .flags = { 0 },
581 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
582 .localpart_cache = { 0 }, /* localpart_cache - ditto */
583 .mode = -1,
584 .more_errno = 0,
585 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
586 .basic_errno = ERRNO_UNKNOWNERROR,
587 .child_count = 0,
588 .return_file = -1,
589 .special_action = SPECIAL_NONE,
590 .transport_return = DEFER,
591 .prop = { /* fields that are propagated to children */
592 .address_data = NULL,
593 .domain_data = NULL,
594 .localpart_data = NULL,
595 .errors_address = NULL,
596 .extra_headers = NULL,
597 .remove_headers = NULL,
598 .variables = NULL,
599 #ifdef EXPERIMENTAL_SRS
600 .srs_sender = NULL,
601 #endif
602 .ignore_error = FALSE,
603 #ifdef SUPPORT_I18N
604 .utf8_msg = FALSE,
605 .utf8_downcvt = FALSE,
606 .utf8_downcvt_maybe = FALSE
607 #endif
608 }
609 };
610
611 uschar *address_file = NULL;
612 uschar *address_pipe = NULL;
613 tree_node *addresslist_anchor = NULL;
614 int addresslist_count = 0;
615 gid_t *admin_groups = NULL;
616
617 #ifdef EXPERIMENTAL_ARC
618 struct arc_set *arc_received = NULL;
619 int arc_received_instance = 0;
620 int arc_oldest_pass = 0;
621 const uschar *arc_state = NULL;
622 const uschar *arc_state_reason = NULL;
623 #endif
624
625 uschar *authenticated_fail_id = NULL;
626 uschar *authenticated_id = NULL;
627 uschar *authenticated_sender = NULL;
628 auth_instance *auths = NULL;
629 uschar *auth_advertise_hosts = US"*";
630 auth_instance auth_defaults = {
631 .next = NULL,
632 .name = NULL,
633 .info = NULL,
634 .options_block = NULL,
635 .driver_name = NULL,
636 .advertise_condition = NULL,
637 .client_condition = NULL,
638 .public_name = NULL,
639 .set_id = NULL,
640 .set_client_id = NULL,
641 .mail_auth_condition = NULL,
642 .server_debug_string = NULL,
643 .server_condition = NULL,
644 .client = FALSE,
645 .server = FALSE,
646 .advertised = FALSE
647 };
648
649 uschar *auth_defer_msg = US"reason not recorded";
650 uschar *auth_defer_user_msg = US"";
651 uschar *auth_vars[AUTH_VARS];
652 int auto_thaw = 0;
653 #ifdef WITH_CONTENT_SCAN
654 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
655 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
656 #endif
657
658 #if BASE_62 == 62
659 uschar *base62_chars=
660 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
661 #else
662 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
663 #endif
664
665 uschar *bi_command = NULL;
666 uschar *big_buffer = NULL;
667 int big_buffer_size = BIG_BUFFER_SIZE;
668 #ifdef EXPERIMENTAL_BRIGHTMAIL
669 uschar *bmi_alt_location = NULL;
670 uschar *bmi_base64_tracker_verdict = NULL;
671 uschar *bmi_base64_verdict = NULL;
672 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
673 int bmi_deliver = 1;
674 int bmi_run = 0;
675 uschar *bmi_verdicts = NULL;
676 #endif
677 int bsmtp_transaction_linecount = 0;
678 int body_8bitmime = 0;
679 int body_linecount = 0;
680 int body_zerocount = 0;
681 uschar *bounce_message_file = NULL;
682 uschar *bounce_message_text = NULL;
683 uschar *bounce_recipient = NULL;
684 int bounce_return_linesize_limit = 998;
685 int bounce_return_size_limit = 100*1024;
686 uschar *bounce_sender_authentication = NULL;
687
688 uschar *callout_address = NULL;
689 int callout_cache_domain_positive_expire = 7*24*60*60;
690 int callout_cache_domain_negative_expire = 3*60*60;
691 int callout_cache_positive_expire = 24*60*60;
692 int callout_cache_negative_expire = 2*60*60;
693 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
694 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
695 int check_log_inodes = 100;
696 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
697 int check_spool_inodes = 100;
698 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
699
700 uschar *chunking_advertise_hosts = US"*";
701 unsigned chunking_datasize = 0;
702 unsigned chunking_data_left = 0;
703 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
704 const pcre *regex_CHUNKING = NULL;
705
706 uschar *client_authenticator = NULL;
707 uschar *client_authenticated_id = NULL;
708 uschar *client_authenticated_sender = NULL;
709 int clmacro_count = 0;
710 uschar *clmacros[MAX_CLMACROS];
711 FILE *config_file = NULL;
712 const uschar *config_filename = NULL;
713 int config_lineno = 0;
714 #ifdef CONFIGURE_GROUP
715 gid_t config_gid = CONFIGURE_GROUP;
716 #else
717 gid_t config_gid = 0;
718 #endif
719 uschar *config_main_filelist = US CONFIGURE_FILE
720 "\0<-----------Space to patch configure_filename->";
721 uschar *config_main_filename = NULL;
722 uschar *config_main_directory = NULL;
723
724 #ifdef CONFIGURE_OWNER
725 uid_t config_uid = CONFIGURE_OWNER;
726 #else
727 uid_t config_uid = 0;
728 #endif
729
730 int connection_max_messages= -1;
731 uschar *continue_proxy_cipher = NULL;
732 uschar *continue_hostname = NULL;
733 uschar *continue_host_address = NULL;
734 int continue_sequence = 1;
735 uschar *continue_transport = NULL;
736
737 uschar *csa_status = NULL;
738 cut_t cutthrough = {
739 .callout_hold_only = FALSE, /* verify-only: normal delivery */
740 .delivery = FALSE, /* when to attempt */
741 .defer_pass = FALSE, /* on defer: spool locally */
742 .is_tls = FALSE, /* not a TLS conn yet */
743 .cctx = {.sock = -1}, /* open connection */
744 .nrcpt = 0, /* number of addresses */
745 };
746
747 int daemon_notifier_fd = -1;
748 uschar *daemon_smtp_port = US"smtp";
749 int daemon_startup_retries = 9;
750 int daemon_startup_sleep = 30;
751
752 #ifdef EXPERIMENTAL_DCC
753 uschar *dcc_header = NULL;
754 uschar *dcc_result = NULL;
755 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
756 uschar *dccifd_options = US"header";
757 #endif
758
759 int debug_fd = -1;
760 FILE *debug_file = NULL;
761 int debug_notall[] = {
762 Di_memory,
763 Di_noutf8,
764 -1
765 };
766 bit_table debug_options[] = { /* must be in alphabetical order and use
767 only the enum values from macro.h */
768 BIT_TABLE(D, acl),
769 BIT_TABLE(D, all),
770 BIT_TABLE(D, auth),
771 BIT_TABLE(D, deliver),
772 BIT_TABLE(D, dns),
773 BIT_TABLE(D, dnsbl),
774 BIT_TABLE(D, exec),
775 BIT_TABLE(D, expand),
776 BIT_TABLE(D, filter),
777 BIT_TABLE(D, hints_lookup),
778 BIT_TABLE(D, host_lookup),
779 BIT_TABLE(D, ident),
780 BIT_TABLE(D, interface),
781 BIT_TABLE(D, lists),
782 BIT_TABLE(D, load),
783 BIT_TABLE(D, local_scan),
784 BIT_TABLE(D, lookup),
785 BIT_TABLE(D, memory),
786 BIT_TABLE(D, noutf8),
787 BIT_TABLE(D, pid),
788 BIT_TABLE(D, process_info),
789 BIT_TABLE(D, queue_run),
790 BIT_TABLE(D, receive),
791 BIT_TABLE(D, resolver),
792 BIT_TABLE(D, retry),
793 BIT_TABLE(D, rewrite),
794 BIT_TABLE(D, route),
795 BIT_TABLE(D, timestamp),
796 BIT_TABLE(D, tls),
797 BIT_TABLE(D, transport),
798 BIT_TABLE(D, uid),
799 BIT_TABLE(D, verify),
800 };
801 int debug_options_count = nelem(debug_options);
802
803 unsigned int debug_selector = 0;
804 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
805 uschar *delay_warning_condition=
806 US"${if or {"
807 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
808 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
809 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
810 "} {no}{yes}}";
811 uschar *deliver_address_data = NULL;
812 int deliver_datafile = -1;
813 const uschar *deliver_domain = NULL;
814 uschar *deliver_domain_data = NULL;
815 const uschar *deliver_domain_orig = NULL;
816 const uschar *deliver_domain_parent = NULL;
817 time_t deliver_frozen_at = 0;
818 uschar *deliver_home = NULL;
819 const uschar *deliver_host = NULL;
820 const uschar *deliver_host_address = NULL;
821 int deliver_host_port = 0;
822 uschar *deliver_in_buffer = NULL;
823 ino_t deliver_inode = 0;
824 uschar *deliver_localpart = NULL;
825 uschar *deliver_localpart_data = NULL;
826 uschar *deliver_localpart_orig = NULL;
827 uschar *deliver_localpart_parent = NULL;
828 uschar *deliver_localpart_prefix = NULL;
829 uschar *deliver_localpart_prefix_v = NULL;
830 uschar *deliver_localpart_suffix = NULL;
831 uschar *deliver_localpart_suffix_v = NULL;
832 uschar *deliver_localpart_verified = NULL;
833 uschar *deliver_out_buffer = NULL;
834 int deliver_queue_load_max = -1;
835 address_item *deliver_recipients = NULL;
836 uschar *deliver_selectstring = NULL;
837 uschar *deliver_selectstring_sender = NULL;
838
839 #ifndef DISABLE_DKIM
840 unsigned dkim_collect_input = 0;
841 uschar *dkim_cur_signer = NULL;
842 int dkim_key_length = 0;
843 void *dkim_signatures = NULL;
844 uschar *dkim_signers = NULL;
845 uschar *dkim_signing_domain = NULL;
846 uschar *dkim_signing_selector = NULL;
847 uschar *dkim_verify_hashes = US"sha256:sha512";
848 uschar *dkim_verify_keytypes = US"ed25519:rsa";
849 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
850 BOOL dkim_verify_minimal = FALSE;
851 uschar *dkim_verify_overall = NULL;
852 uschar *dkim_verify_signers = US"$dkim_signers";
853 uschar *dkim_verify_status = NULL;
854 uschar *dkim_verify_reason = NULL;
855 #endif
856 #ifdef SUPPORT_DMARC
857 uschar *dmarc_domain_policy = NULL;
858 uschar *dmarc_forensic_sender = NULL;
859 uschar *dmarc_history_file = NULL;
860 uschar *dmarc_status = NULL;
861 uschar *dmarc_status_text = NULL;
862 uschar *dmarc_tld_file = NULL;
863 uschar *dmarc_used_domain = NULL;
864 #endif
865
866 uschar *dns_again_means_nonexist = NULL;
867 int dns_csa_search_limit = 5;
868 int dns_cname_loops = 1;
869 #ifdef SUPPORT_DANE
870 int dns_dane_ok = -1;
871 #endif
872 uschar *dns_ipv4_lookup = NULL;
873 int dns_retrans = 0;
874 int dns_retry = 0;
875 int dns_dnssec_ok = -1; /* <0 = not coerced */
876 uschar *dns_trust_aa = NULL;
877 int dns_use_edns0 = -1; /* <0 = not coerced */
878 uschar *dnslist_domain = NULL;
879 uschar *dnslist_matched = NULL;
880 uschar *dnslist_text = NULL;
881 uschar *dnslist_value = NULL;
882 tree_node *domainlist_anchor = NULL;
883 int domainlist_count = 0;
884 uschar *dsn_from = US DEFAULT_DSN_FROM;
885
886 int errno_quota = ERRNO_QUOTA;
887 uschar *errors_copy = NULL;
888 int error_handling = ERRORS_SENDER;
889 uschar *errors_reply_to = NULL;
890 int errors_sender_rc = EXIT_FAILURE;
891 #ifndef DISABLE_EVENT
892 uschar *event_action = NULL; /* expansion for delivery events */
893 uschar *event_data = NULL; /* auxiliary data variable for event */
894 int event_defer_errno = 0;
895 const uschar *event_name = NULL; /* event name variable */
896 #endif
897
898
899 gid_t exim_gid = EXIM_GID;
900 uschar *exim_path = US BIN_DIRECTORY "/exim"
901 "\0<---------------Space to patch exim_path->";
902 uid_t exim_uid = EXIM_UID;
903 int expand_level = 0; /* Nesting depth, indent for debug */
904 int expand_forbid = 0;
905 int expand_nlength[EXPAND_MAXN+1];
906 int expand_nmax = -1;
907 uschar *expand_nstring[EXPAND_MAXN+1];
908 uschar *expand_string_message;
909 uschar *extra_local_interfaces = NULL;
910
911 int fake_response = OK;
912 uschar *fake_response_text = US"Your message has been rejected but is "
913 "being kept for evaluation.\nIf it was a "
914 "legitimate message, it may still be "
915 "delivered to the target recipient(s).";
916 int filter_n[FILTER_VARIABLE_COUNT];
917 int filter_sn[FILTER_VARIABLE_COUNT];
918 int filter_test = FTEST_NONE;
919 uschar *filter_test_sfile = NULL;
920 uschar *filter_test_ufile = NULL;
921 uschar *filter_thisaddress = NULL;
922 int finduser_retries = 0;
923 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
924 uschar *freeze_tell = NULL;
925 uschar *freeze_tell_config = NULL;
926 uschar *fudged_queue_times = US"";
927
928 uschar *gecos_name = NULL;
929 uschar *gecos_pattern = NULL;
930 rewrite_rule *global_rewrite_rules = NULL;
931
932 volatile sig_atomic_t had_command_timeout = 0;
933 volatile sig_atomic_t had_command_sigterm = 0;
934 volatile sig_atomic_t had_data_timeout = 0;
935 volatile sig_atomic_t had_data_sigint = 0;
936 uschar *headers_charset = US HEADERS_CHARSET;
937 int header_insert_maxlen = 64 * 1024;
938 header_line *header_last = NULL;
939 header_line *header_list = NULL;
940 int header_maxsize = HEADER_MAXSIZE;
941 int header_line_maxsize = 0;
942
943 header_name header_names[] = {
944 /* name len allow_resent htype */
945 { US"bcc", 3, TRUE, htype_bcc },
946 { US"cc", 2, TRUE, htype_cc },
947 { US"date", 4, TRUE, htype_date },
948 { US"delivery-date", 13, FALSE, htype_delivery_date },
949 { US"envelope-to", 11, FALSE, htype_envelope_to },
950 { US"from", 4, TRUE, htype_from },
951 { US"message-id", 10, TRUE, htype_id },
952 { US"received", 8, FALSE, htype_received },
953 { US"reply-to", 8, FALSE, htype_reply_to },
954 { US"return-path", 11, FALSE, htype_return_path },
955 { US"sender", 6, TRUE, htype_sender },
956 { US"subject", 7, FALSE, htype_subject },
957 { US"to", 2, TRUE, htype_to }
958 };
959
960 int header_names_size = nelem(header_names);
961
962 uschar *helo_accept_junk_hosts = NULL;
963 uschar *helo_allow_chars = US"";
964 uschar *helo_lookup_domains = US"@ : @[]";
965 uschar *helo_try_verify_hosts = NULL;
966 uschar *helo_verify_hosts = NULL;
967 const uschar *hex_digits = CUS"0123456789abcdef";
968 uschar *hold_domains = NULL;
969 uschar *host_data = NULL;
970 uschar *host_lookup = NULL;
971 uschar *host_lookup_order = US"bydns:byaddr";
972 uschar *host_lookup_msg = US"";
973 int host_number = 0;
974 uschar *host_number_string = NULL;
975 uschar *host_reject_connection = NULL;
976 tree_node *hostlist_anchor = NULL;
977 int hostlist_count = 0;
978 uschar *hosts_treat_as_local = NULL;
979 uschar *hosts_connection_nolog = NULL;
980
981 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
982 uschar *ignore_fromline_hosts = NULL;
983 int inetd_wait_timeout = -1;
984 uschar *initial_cwd = NULL;
985 uschar *interface_address = NULL;
986 int interface_port = -1;
987 uschar *iterate_item = NULL;
988
989 int journal_fd = -1;
990
991 uschar *keep_environment = NULL;
992
993 int keep_malformed = 4*24*60*60; /* 4 days */
994
995 uschar *eldap_dn = NULL;
996 int load_average = -2;
997 uschar *local_from_prefix = NULL;
998 uschar *local_from_suffix = NULL;
999
1000 #if HAVE_IPV6
1001 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1002 #else
1003 uschar *local_interfaces = US"0.0.0.0";
1004 #endif
1005
1006 #ifdef HAVE_LOCAL_SCAN
1007 uschar *local_scan_data = NULL;
1008 int local_scan_timeout = 5*60;
1009 #endif
1010 gid_t local_user_gid = (gid_t)(-1);
1011 uid_t local_user_uid = (uid_t)(-1);
1012
1013 tree_node *localpartlist_anchor= NULL;
1014 int localpartlist_count = 0;
1015 uschar *log_buffer = NULL;
1016
1017 int log_default[] = { /* for initializing log_selector */
1018 Li_acl_warn_skipped,
1019 Li_connection_reject,
1020 Li_delay_delivery,
1021 Li_dkim,
1022 Li_dnslist_defer,
1023 Li_etrn,
1024 Li_host_lookup_failed,
1025 Li_lost_incoming_connection,
1026 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1027 Li_msg_id,
1028 Li_queue_run,
1029 Li_rejected_header,
1030 Li_retry_defer,
1031 Li_sender_verify_fail,
1032 Li_size_reject,
1033 Li_skip_delivery,
1034 Li_smtp_confirmation,
1035 Li_tls_certificate_verified,
1036 Li_tls_cipher,
1037 -1
1038 };
1039
1040 uschar *log_file_path = US LOG_FILE_PATH
1041 "\0<--------------Space to patch log_file_path->";
1042
1043 int log_notall[] = {
1044 -1
1045 };
1046 bit_table log_options[] = { /* must be in alphabetical order,
1047 with definitions from enum logbit. */
1048 BIT_TABLE(L, 8bitmime),
1049 BIT_TABLE(L, acl_warn_skipped),
1050 BIT_TABLE(L, address_rewrite),
1051 BIT_TABLE(L, all),
1052 BIT_TABLE(L, all_parents),
1053 BIT_TABLE(L, arguments),
1054 BIT_TABLE(L, connection_reject),
1055 BIT_TABLE(L, delay_delivery),
1056 BIT_TABLE(L, deliver_time),
1057 BIT_TABLE(L, delivery_size),
1058 #ifndef DISABLE_DKIM
1059 BIT_TABLE(L, dkim),
1060 BIT_TABLE(L, dkim_verbose),
1061 #endif
1062 BIT_TABLE(L, dnslist_defer),
1063 BIT_TABLE(L, dnssec),
1064 BIT_TABLE(L, etrn),
1065 BIT_TABLE(L, host_lookup_failed),
1066 BIT_TABLE(L, ident_timeout),
1067 BIT_TABLE(L, incoming_interface),
1068 BIT_TABLE(L, incoming_port),
1069 BIT_TABLE(L, lost_incoming_connection),
1070 BIT_TABLE(L, millisec),
1071 BIT_TABLE(L, msg_id),
1072 BIT_TABLE(L, msg_id_created),
1073 BIT_TABLE(L, outgoing_interface),
1074 BIT_TABLE(L, outgoing_port),
1075 BIT_TABLE(L, pid),
1076 BIT_TABLE(L, pipelining),
1077 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1078 BIT_TABLE(L, proxy),
1079 #endif
1080 BIT_TABLE(L, queue_run),
1081 BIT_TABLE(L, queue_time),
1082 BIT_TABLE(L, queue_time_overall),
1083 BIT_TABLE(L, receive_time),
1084 BIT_TABLE(L, received_recipients),
1085 BIT_TABLE(L, received_sender),
1086 BIT_TABLE(L, rejected_header),
1087 { US"rejected_headers", Li_rejected_header },
1088 BIT_TABLE(L, retry_defer),
1089 BIT_TABLE(L, return_path_on_delivery),
1090 BIT_TABLE(L, sender_on_delivery),
1091 BIT_TABLE(L, sender_verify_fail),
1092 BIT_TABLE(L, size_reject),
1093 BIT_TABLE(L, skip_delivery),
1094 BIT_TABLE(L, smtp_confirmation),
1095 BIT_TABLE(L, smtp_connection),
1096 BIT_TABLE(L, smtp_incomplete_transaction),
1097 BIT_TABLE(L, smtp_mailauth),
1098 BIT_TABLE(L, smtp_no_mail),
1099 BIT_TABLE(L, smtp_protocol_error),
1100 BIT_TABLE(L, smtp_syntax_error),
1101 BIT_TABLE(L, subject),
1102 BIT_TABLE(L, tls_certificate_verified),
1103 BIT_TABLE(L, tls_cipher),
1104 BIT_TABLE(L, tls_peerdn),
1105 BIT_TABLE(L, tls_resumption),
1106 BIT_TABLE(L, tls_sni),
1107 BIT_TABLE(L, unknown_in_list),
1108 };
1109 int log_options_count = nelem(log_options);
1110
1111 int log_reject_target = 0;
1112 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1113 uschar *log_selector_string = NULL;
1114 FILE *log_stderr = NULL;
1115 uschar *login_sender_address = NULL;
1116 uschar *lookup_dnssec_authenticated = NULL;
1117 int lookup_open_max = 25;
1118 uschar *lookup_value = NULL;
1119
1120 macro_item *macros_user = NULL;
1121 uschar *mailstore_basename = NULL;
1122 #ifdef WITH_CONTENT_SCAN
1123 uschar *malware_name = NULL; /* Virus Name */
1124 #endif
1125 int max_received_linelength= 0;
1126 int max_username_length = 0;
1127 int message_age = 0;
1128 uschar *message_body = NULL;
1129 uschar *message_body_end = NULL;
1130 int message_body_size = 0;
1131 int message_body_visible = 500;
1132 int message_ended = END_NOTSTARTED;
1133 uschar *message_headers = NULL;
1134 uschar *message_id;
1135 uschar *message_id_domain = NULL;
1136 uschar *message_id_text = NULL;
1137 struct timeval message_id_tv = { 0, 0 };
1138 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1139 uschar *message_id_external;
1140 int message_linecount = 0;
1141 int message_size = 0;
1142 uschar *message_size_limit = US"50M";
1143 #ifdef SUPPORT_I18N
1144 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1145 #endif
1146 uschar message_subdir[2] = { 0, 0 };
1147 uschar *message_reference = NULL;
1148
1149 /* MIME ACL expandables */
1150 #ifdef WITH_CONTENT_SCAN
1151 int mime_anomaly_level = 0;
1152 const uschar *mime_anomaly_text = NULL;
1153 uschar *mime_boundary = NULL;
1154 uschar *mime_charset = NULL;
1155 uschar *mime_content_description = NULL;
1156 uschar *mime_content_disposition = NULL;
1157 uschar *mime_content_id = NULL;
1158 unsigned int mime_content_size = 0;
1159 uschar *mime_content_transfer_encoding = NULL;
1160 uschar *mime_content_type = NULL;
1161 uschar *mime_decoded_filename = NULL;
1162 uschar *mime_filename = NULL;
1163 int mime_is_multipart = 0;
1164 int mime_is_coverletter = 0;
1165 int mime_is_rfc822 = 0;
1166 int mime_part_count = -1;
1167 #endif
1168
1169 uid_t *never_users = NULL;
1170 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1171
1172 const int on = 1; /* for setsockopt */
1173 const int off = 0;
1174
1175 uid_t original_euid;
1176 gid_t originator_gid;
1177 uschar *originator_login = NULL;
1178 uschar *originator_name = NULL;
1179 uid_t originator_uid;
1180 uschar *override_local_interfaces = NULL;
1181 uschar *override_pid_file_path = NULL;
1182
1183 uschar *percent_hack_domains = NULL;
1184 uschar *pid_file_path = US PID_FILE_PATH
1185 "\0<--------------Space to patch pid_file_path->";
1186 #ifndef DISABLE_PIPE_CONNECT
1187 uschar *pipe_connect_advertise_hosts = US"*";
1188 #endif
1189 uschar *pipelining_advertise_hosts = US"*";
1190 uschar *primary_hostname = NULL;
1191 uschar *process_info;
1192 int process_info_len = 0;
1193 uschar *process_log_path = NULL;
1194 const uschar *process_purpose = US"fresh-exec";
1195
1196 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1197 uschar *hosts_proxy = NULL;
1198 uschar *proxy_external_address = NULL;
1199 int proxy_external_port = 0;
1200 uschar *proxy_local_address = NULL;
1201 int proxy_local_port = 0;
1202 #endif
1203
1204 uschar *prvscheck_address = NULL;
1205 uschar *prvscheck_keynum = NULL;
1206 uschar *prvscheck_result = NULL;
1207
1208
1209 const uschar *qualify_domain_recipient = NULL;
1210 uschar *qualify_domain_sender = NULL;
1211 uschar *queue_domains = NULL;
1212 int queue_interval = -1;
1213 uschar *queue_name = US"";
1214 uschar *queue_name_dest = NULL;
1215 uschar *queue_only_file = NULL;
1216 int queue_only_load = -1;
1217 uschar *queue_run_max = US"5";
1218 pid_t queue_run_pid = (pid_t)0;
1219 int queue_run_pipe = -1;
1220 unsigned queue_size = 0;
1221 time_t queue_size_next = 0;
1222 uschar *queue_smtp_domains = NULL;
1223
1224 uint32_t random_seed = 0;
1225 tree_node *ratelimiters_cmd = NULL;
1226 tree_node *ratelimiters_conn = NULL;
1227 tree_node *ratelimiters_mail = NULL;
1228 uschar *raw_active_hostname = NULL;
1229 uschar *raw_sender = NULL;
1230 uschar **raw_recipients = NULL;
1231 int raw_recipients_count = 0;
1232
1233 int rcpt_count = 0;
1234 int rcpt_fail_count = 0;
1235 int rcpt_defer_count = 0;
1236 gid_t real_gid;
1237 uid_t real_uid;
1238 int receive_linecount = 0;
1239 int receive_messagecount = 0;
1240 int receive_timeout = 0;
1241 int received_count = 0;
1242 uschar *received_for = NULL;
1243
1244 /* This is the default text for Received headers generated by Exim. The
1245 date will be automatically added on the end. */
1246
1247 uschar *received_header_text = US
1248 "Received: "
1249 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1250 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1251 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1252 "by $primary_hostname "
1253 "${if def:received_protocol {with $received_protocol }}"
1254 #ifndef DISABLE_TLS
1255 "${if def:tls_in_ver { ($tls_in_ver)}}"
1256 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1257 #endif
1258 "(Exim $version_number)\n\t"
1259 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1260 "id $message_exim_id"
1261 "${if def:received_for {\n\tfor $received_for}}"
1262 "\0<---------------Space to patch received_header_text->";
1263
1264 int received_headers_max = 30;
1265 uschar *received_protocol = NULL;
1266 struct timeval received_time = { 0, 0 };
1267 struct timeval received_time_taken = { 0, 0 };
1268 uschar *recipient_data = NULL;
1269 uschar *recipient_unqualified_hosts = NULL;
1270 uschar *recipient_verify_failure = NULL;
1271 int recipients_count = 0;
1272 recipient_item *recipients_list = NULL;
1273 int recipients_list_max = 0;
1274 int recipients_max = 0;
1275 const pcre *regex_AUTH = NULL;
1276 const pcre *regex_check_dns_names = NULL;
1277 const pcre *regex_From = NULL;
1278 const pcre *regex_IGNOREQUOTA = NULL;
1279 const pcre *regex_PIPELINING = NULL;
1280 const pcre *regex_SIZE = NULL;
1281 #ifndef DISABLE_PIPE_CONNECT
1282 const pcre *regex_EARLY_PIPE = NULL;
1283 #endif
1284 const pcre *regex_ismsgid = NULL;
1285 const pcre *regex_smtp_code = NULL;
1286 uschar *regex_vars[REGEX_VARS];
1287 #ifdef WHITELIST_D_MACROS
1288 const pcre *regex_whitelisted_macro = NULL;
1289 #endif
1290 #ifdef WITH_CONTENT_SCAN
1291 uschar *regex_match_string = NULL;
1292 #endif
1293 int remote_delivery_count = 0;
1294 int remote_max_parallel = 2;
1295 uschar *remote_sort_domains = NULL;
1296 int retry_data_expire = 7*24*60*60;
1297 int retry_interval_max = 24*60*60;
1298 int retry_maximum_timeout = 0; /* set from retry config */
1299 retry_config *retries = NULL;
1300 uschar *return_path = NULL;
1301 int rewrite_existflags = 0;
1302 uschar *rfc1413_hosts = US"@[]";
1303 int rfc1413_query_timeout = 0;
1304 uid_t root_gid = ROOT_GID;
1305 uid_t root_uid = ROOT_UID;
1306
1307 router_instance *routers = NULL;
1308 router_instance router_defaults = {
1309 .next = NULL,
1310 .name = NULL,
1311 .info = NULL,
1312 .options_block = NULL,
1313 .driver_name = NULL,
1314
1315 .address_data = NULL,
1316 #ifdef EXPERIMENTAL_BRIGHTMAIL
1317 .bmi_rule = NULL,
1318 #endif
1319 .cannot_route_message = NULL,
1320 .condition = NULL,
1321 .current_directory = NULL,
1322 .debug_string = NULL,
1323 .domains = NULL,
1324 .errors_to = NULL,
1325 .expand_gid = NULL,
1326 .expand_uid = NULL,
1327 .expand_more = NULL,
1328 .expand_unseen = NULL,
1329 .extra_headers = NULL,
1330 .fallback_hosts = NULL,
1331 .home_directory = NULL,
1332 .ignore_target_hosts = NULL,
1333 .local_parts = NULL,
1334 .pass_router_name = NULL,
1335 .prefix = NULL,
1336 .redirect_router_name = NULL,
1337 .remove_headers = NULL,
1338 .require_files = NULL,
1339 .router_home_directory = NULL,
1340 .self = US"freeze",
1341 .senders = NULL,
1342 .suffix = NULL,
1343 .translate_ip_address = NULL,
1344 .transport_name = NULL,
1345
1346 .address_test = TRUE,
1347 #ifdef EXPERIMENTAL_BRIGHTMAIL
1348 .bmi_deliver_alternate = FALSE,
1349 .bmi_deliver_default = FALSE,
1350 .bmi_dont_deliver = FALSE,
1351 #endif
1352 .expn = TRUE,
1353 .caseful_local_part = FALSE,
1354 .check_local_user = FALSE,
1355 .disable_logging = FALSE,
1356 .fail_verify_recipient = FALSE,
1357 .fail_verify_sender = FALSE,
1358 .gid_set = FALSE,
1359 .initgroups = FALSE,
1360 .log_as_local = TRUE_UNSET,
1361 .more = TRUE,
1362 .pass_on_timeout = FALSE,
1363 .prefix_optional = FALSE,
1364 .repeat_use = TRUE,
1365 .retry_use_local_part = TRUE_UNSET,
1366 .same_domain_copy_routing = FALSE,
1367 .self_rewrite = FALSE,
1368 .set = NULL,
1369 .suffix_optional = FALSE,
1370 .verify_only = FALSE,
1371 .verify_recipient = TRUE,
1372 .verify_sender = TRUE,
1373 .uid_set = FALSE,
1374 .unseen = FALSE,
1375 .dsn_lasthop = FALSE,
1376
1377 .self_code = self_freeze,
1378 .uid = (uid_t)(-1),
1379 .gid = (gid_t)(-1),
1380
1381 .fallback_hostlist = NULL,
1382 .transport = NULL,
1383 .pass_router = NULL,
1384 .redirect_router = NULL,
1385
1386 .dnssec = { .request= US"*", .require=NULL },
1387 };
1388
1389 uschar *router_name = NULL;
1390 tree_node *router_var = NULL;
1391
1392 ip_address_item *running_interfaces = NULL;
1393
1394 /* This is a weird one. The following string gets patched in the binary by the
1395 script that sets up a copy of Exim for running in the test harness. It seems
1396 that compilers are now clever, and share constant strings if they can.
1397 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1398 make use of the end of this string in order to save space. So the patching then
1399 wrecks this. We defeat this optimization by adding some additional characters
1400 onto the end of the string. */
1401
1402 uschar *running_status = US">>>running<<<" "\0EXTRA";
1403
1404 int runrc = 0;
1405
1406 uschar *search_error_message = NULL;
1407 uschar *self_hostname = NULL;
1408 uschar *sender_address = NULL;
1409 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1410 uschar *sender_address_data = NULL;
1411 uschar *sender_address_unrewritten = NULL;
1412 uschar *sender_data = NULL;
1413 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1414 uschar *sender_fullhost = NULL;
1415 uschar *sender_helo_name = NULL;
1416 uschar **sender_host_aliases = &no_aliases;
1417 uschar *sender_host_address = NULL;
1418 uschar *sender_host_authenticated = NULL;
1419 uschar *sender_host_auth_pubname = NULL;
1420 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1421 uschar *sender_host_name = NULL;
1422 int sender_host_port = 0;
1423 uschar *sender_ident = NULL;
1424 uschar *sender_rate = NULL;
1425 uschar *sender_rate_limit = NULL;
1426 uschar *sender_rate_period = NULL;
1427 uschar *sender_rcvhost = NULL;
1428 uschar *sender_unqualified_hosts = NULL;
1429 uschar *sender_verify_failure = NULL;
1430 address_item *sender_verified_list = NULL;
1431 address_item *sender_verified_failed = NULL;
1432 int sender_verified_rc = -1;
1433 uschar *sending_ip_address = NULL;
1434 int sending_port = -1;
1435 SIGNAL_BOOL sigalrm_seen = FALSE;
1436 const uschar *sigalarm_setter = NULL;
1437 uschar **sighup_argv = NULL;
1438 int slow_lookup_log = 0; /* millisecs, zero disables */
1439 int smtp_accept_count = 0;
1440 int smtp_accept_max = 20;
1441 int smtp_accept_max_nonmail= 10;
1442 uschar *smtp_accept_max_nonmail_hosts = US"*";
1443 int smtp_accept_max_per_connection = 1000;
1444 uschar *smtp_accept_max_per_host = NULL;
1445 int smtp_accept_queue = 0;
1446 int smtp_accept_queue_per_connection = 10;
1447 int smtp_accept_reserve = 0;
1448 uschar *smtp_active_hostname = NULL;
1449 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1450 "Exim $version_number $tod_full"
1451 "\0<---------------Space to patch smtp_banner->";
1452 int smtp_ch_index = 0;
1453 uschar *smtp_cmd_argument = NULL;
1454 uschar *smtp_cmd_buffer = NULL;
1455 struct timeval smtp_connection_start = {0,0};
1456 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1457 int smtp_connect_backlog = 20;
1458 double smtp_delay_mail = 0.0;
1459 double smtp_delay_rcpt = 0.0;
1460 FILE *smtp_in = NULL;
1461 int smtp_load_reserve = -1;
1462 int smtp_mailcmd_count = 0;
1463 FILE *smtp_out = NULL;
1464 uschar *smtp_etrn_command = NULL;
1465 int smtp_max_synprot_errors= 3;
1466 int smtp_max_unknown_commands = 3;
1467 uschar *smtp_notquit_reason = NULL;
1468 uschar *smtp_ratelimit_hosts = NULL;
1469 uschar *smtp_ratelimit_mail = NULL;
1470 uschar *smtp_ratelimit_rcpt = NULL;
1471 uschar *smtp_read_error = US"";
1472 int smtp_receive_timeout = 5*60;
1473 uschar *smtp_receive_timeout_s = NULL;
1474 uschar *smtp_reserve_hosts = NULL;
1475 int smtp_rlm_base = 0;
1476 double smtp_rlm_factor = 0.0;
1477 int smtp_rlm_limit = 0;
1478 int smtp_rlm_threshold = INT_MAX;
1479 int smtp_rlr_base = 0;
1480 double smtp_rlr_factor = 0.0;
1481 int smtp_rlr_limit = 0;
1482 int smtp_rlr_threshold = INT_MAX;
1483 unsigned smtp_peer_options = 0;
1484 unsigned smtp_peer_options_wrap= 0;
1485 #ifdef SUPPORT_I18N
1486 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1487 #endif
1488
1489 #ifdef WITH_CONTENT_SCAN
1490 uschar *spamd_address = US"127.0.0.1 783";
1491 uschar *spam_bar = NULL;
1492 uschar *spam_report = NULL;
1493 uschar *spam_action = NULL;
1494 uschar *spam_score = NULL;
1495 uschar *spam_score_int = NULL;
1496 #endif
1497 #ifdef SUPPORT_SPF
1498 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1499 uschar *spf_header_comment = NULL;
1500 uschar *spf_received = NULL;
1501 uschar *spf_result = NULL;
1502 uschar *spf_smtp_comment = NULL;
1503 #endif
1504
1505 FILE *spool_data_file = NULL;
1506 uschar *spool_directory = US SPOOL_DIRECTORY
1507 "\0<--------------Space to patch spool_directory->";
1508 #ifdef EXPERIMENTAL_SRS
1509 uschar *srs_config = NULL;
1510 uschar *srs_db_address = NULL;
1511 uschar *srs_db_key = NULL;
1512 int srs_hashlength = 6;
1513 int srs_hashmin = -1;
1514 int srs_maxage = 31;
1515 uschar *srs_orig_recipient = NULL;
1516 uschar *srs_orig_sender = NULL;
1517 uschar *srs_recipient = NULL;
1518 uschar *srs_secrets = NULL;
1519 uschar *srs_status = NULL;
1520 #endif
1521 #ifdef EXPERIMENTAL_SRS_NATIVE
1522 uschar *srs_recipient = NULL;
1523 #endif
1524 int string_datestamp_offset= -1;
1525 int string_datestamp_length= 0;
1526 int string_datestamp_type = -1;
1527 uschar *submission_domain = NULL;
1528 uschar *submission_name = NULL;
1529 int syslog_facility = LOG_MAIL;
1530 uschar *syslog_processname = US"exim";
1531 uschar *system_filter = NULL;
1532
1533 uschar *system_filter_directory_transport = NULL;
1534 uschar *system_filter_file_transport = NULL;
1535 uschar *system_filter_pipe_transport = NULL;
1536 uschar *system_filter_reply_transport = NULL;
1537
1538 gid_t system_filter_gid = 0;
1539 uid_t system_filter_uid = (uid_t)-1;
1540
1541 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1542 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1543 #ifdef USE_TCP_WRAPPERS
1544 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1545 #endif
1546 int test_harness_load_avg = 0;
1547 int thismessage_size_limit = 0;
1548 int timeout_frozen_after = 0;
1549 #ifdef MEASURE_TIMING
1550 struct timeval timestamp_startup;
1551 #endif
1552
1553 transport_instance *transports = NULL;
1554
1555 transport_instance transport_defaults = {
1556 .next = NULL,
1557 .name = NULL,
1558 .info = NULL,
1559 .options_block = NULL,
1560 .driver_name = NULL,
1561 .setup = NULL,
1562 .batch_max = 1,
1563 .batch_id = NULL,
1564 .home_dir = NULL,
1565 .current_dir = NULL,
1566 .expand_multi_domain = NULL,
1567 .multi_domain = TRUE,
1568 .overrides_hosts = FALSE,
1569 .max_addresses = 100,
1570 .connection_max_messages = 500,
1571 .deliver_as_creator = FALSE,
1572 .disable_logging = FALSE,
1573 .initgroups = FALSE,
1574 .uid_set = FALSE,
1575 .gid_set = FALSE,
1576 .uid = (uid_t)(-1),
1577 .gid = (gid_t)(-1),
1578 .expand_uid = NULL,
1579 .expand_gid = NULL,
1580 .warn_message = NULL,
1581 .shadow = NULL,
1582 .shadow_condition = NULL,
1583 .filter_command = NULL,
1584 .add_headers = NULL,
1585 .remove_headers = NULL,
1586 .return_path = NULL,
1587 .debug_string = NULL,
1588 .max_parallel = NULL,
1589 .message_size_limit = NULL,
1590 .headers_rewrite = NULL,
1591 .rewrite_rules = NULL,
1592 .rewrite_existflags = 0,
1593 .filter_timeout = 300,
1594 .body_only = FALSE,
1595 .delivery_date_add = FALSE,
1596 .envelope_to_add = FALSE,
1597 .headers_only = FALSE,
1598 .rcpt_include_affixes = FALSE,
1599 .return_path_add = FALSE,
1600 .return_output = FALSE,
1601 .return_fail_output = FALSE,
1602 .log_output = FALSE,
1603 .log_fail_output = FALSE,
1604 .log_defer_output = FALSE,
1605 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1606 1 nor 0 so can detect unset */
1607 #ifndef DISABLE_EVENT
1608 .event_action = NULL
1609 #endif
1610 };
1611
1612 int transport_count;
1613 uschar *transport_name = NULL;
1614 int transport_newlines;
1615 const uschar **transport_filter_argv = NULL;
1616 int transport_filter_timeout;
1617 int transport_write_timeout= 0;
1618
1619 tree_node *tree_dns_fails = NULL;
1620 tree_node *tree_duplicates = NULL;
1621 tree_node *tree_nonrecipients = NULL;
1622 tree_node *tree_unusable = NULL;
1623
1624 gid_t *trusted_groups = NULL;
1625 uid_t *trusted_users = NULL;
1626 uschar *timezone_string = US TIMEZONE_DEFAULT;
1627
1628 uschar *unknown_login = NULL;
1629 uschar *unknown_username = NULL;
1630 uschar *untrusted_set_sender = NULL;
1631
1632 /* A regex for matching a "From_" line in an incoming message, in the form
1633
1634 From ph10 Fri Jan 5 12:35 GMT 1996
1635
1636 which the "mail" commands send to the MTA (undocumented, of course), or in
1637 the form
1638
1639 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1640
1641 which is apparently used by some UUCPs, despite it not being in RFC 976.
1642 Because of variations in time formats, just match up to the minutes. That
1643 should be sufficient. Examples have been seen of time fields like 12:1:03,
1644 so just require one digit for hours and minutes. The weekday is also absent
1645 in some forms. */
1646
1647 uschar *uucp_from_pattern = US
1648 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1649 "(?:" /* Non-extracting bracket */
1650 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1651 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1652 ")" /* End alternation */
1653 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1654
1655 uschar *uucp_from_sender = US"$1";
1656
1657 uschar *verify_mode = NULL;
1658 uschar *version_copyright =
1659 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1660 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1661 uschar *version_date = US"?";
1662 uschar *version_cnumber = US"????";
1663 uschar *version_string = US"?";
1664
1665 uschar *warn_message_file = NULL;
1666 int warning_count = 0;
1667 uschar *warnmsg_delay = NULL;
1668 uschar *warnmsg_recipients = NULL;
1669
1670
1671 /* End of globals.c */
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