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