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