1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) The Exim Maintainers 2020 - 2022 */
6 /* Copyright (c) University of Cambridge 1995 - 2018 */
7 /* See the file NOTICE for conditions of use and distribution. */
8 /* SPDX-License-Identifier: GPL-2.0-or-later */
10 /* All the global variables are defined together in this one module, so
11 that they are easy to find. */
16 /* Generic options for auths, all of which live inside auth_instance
17 data blocks and hence have the opt_public flag set. */
19 optionlist optionlist_auths[] = {
20 { "client_condition", opt_stringptr | opt_public,
21 OPT_OFF(auth_instance, client_condition) },
22 { "client_set_id", opt_stringptr | opt_public,
23 OPT_OFF(auth_instance, set_client_id) },
24 { "driver", opt_stringptr | opt_public,
25 OPT_OFF(auth_instance, driver_name) },
26 { "public_name", opt_stringptr | opt_public,
27 OPT_OFF(auth_instance, public_name) },
28 { "server_advertise_condition", opt_stringptr | opt_public,
29 OPT_OFF(auth_instance, advertise_condition)},
30 { "server_condition", opt_stringptr | opt_public,
31 OPT_OFF(auth_instance, server_condition) },
32 { "server_debug_print", opt_stringptr | opt_public,
33 OPT_OFF(auth_instance, server_debug_string) },
34 { "server_mail_auth_condition", opt_stringptr | opt_public,
35 OPT_OFF(auth_instance, mail_auth_condition) },
36 { "server_set_id", opt_stringptr | opt_public,
37 OPT_OFF(auth_instance, set_id) }
40 int optionlist_auths_size = nelem(optionlist_auths);
42 /* An empty host aliases list. */
44 uschar *no_aliases = NULL;
47 /* For comments on these variables, see globals.h. I'm too idle to
48 duplicate them here... */
51 uschar *opt_perl_startup = NULL;
52 BOOL opt_perl_at_start = FALSE;
53 BOOL opt_perl_started = FALSE;
54 BOOL opt_perl_taintmode = FALSE;
58 tree_node *dlobj_anchor = NULL;
62 uschar *ibase_servers = NULL;
66 uschar *eldap_ca_cert_dir = NULL;
67 uschar *eldap_ca_cert_file = NULL;
68 uschar *eldap_cert_file = NULL;
69 uschar *eldap_cert_key = NULL;
70 uschar *eldap_cipher_suite = NULL;
71 uschar *eldap_default_servers = NULL;
72 uschar *eldap_require_cert = NULL;
73 int eldap_version = -1;
74 BOOL eldap_start_tls = FALSE;
78 uschar *mysql_servers = NULL;
82 uschar *oracle_servers = NULL;
86 uschar *pgsql_servers = NULL;
90 uschar *redis_servers = NULL;
94 uschar *sqlite_dbfile = NULL;
95 int sqlite_lock_timeout = 5;
98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
99 BOOL move_frozen_messages = FALSE;
102 /* These variables are outside the #ifdef because it keeps the code less
103 cluttered in several places (e.g. during logging) if we can always refer to
104 them. Also, the tls_ variables are now always visible. Note that these are
105 only used for smtp connections, not for service-daemon access. */
107 tls_support tls_in = {
108 .active = {.sock = -1}
109 /* all other elements zero */
111 tls_support tls_out = {
112 .active = {.sock = -1},
113 /* all other elements zero */
116 uschar *dsn_envid = NULL;
118 const pcre2_code *regex_DSN = NULL;
119 uschar *dsn_advertise_hosts = NULL;
122 BOOL gnutls_compat_mode = FALSE;
123 BOOL gnutls_allow_auto_pkcs11 = FALSE;
124 uschar *hosts_require_alpn = NULL;
125 uschar *openssl_options = NULL;
126 const pcre2_code *regex_STARTTLS = NULL;
127 uschar *tls_advertise_hosts = US"*";
128 uschar *tls_alpn = US"smtp:esmtp";
129 uschar *tls_certificate = NULL;
130 uschar *tls_crl = NULL;
131 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
132 that's the interop problem which has been observed: GnuTLS suggesting a higher
133 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
134 int tls_dh_max_bits = 2236;
135 uschar *tls_dhparam = NULL;
136 uschar *tls_eccurve = US"auto";
137 # ifndef DISABLE_OCSP
138 uschar *tls_ocsp_file = NULL;
140 uschar *tls_privatekey = NULL;
141 BOOL tls_remember_esmtp = FALSE;
142 uschar *tls_require_ciphers = NULL;
143 # ifndef DISABLE_TLS_RESUME
144 uschar *tls_resumption_hosts = NULL;
146 uschar *tls_try_verify_hosts = NULL;
147 uschar *tls_verify_certificates= US"system";
148 uschar *tls_verify_hosts = NULL;
149 int tls_watch_fd = -1;
150 time_t tls_watch_trigger_time = (time_t)0;
151 #else /*DISABLE_TLS*/
152 uschar *tls_advertise_hosts = NULL;
156 /* Per Recipient Data Response variables */
157 BOOL prdr_enable = FALSE;
158 BOOL prdr_requested = FALSE;
159 const pcre2_code *regex_PRDR = NULL;
163 const pcre2_code *regex_UTF8 = NULL;
166 /* Input-reading functions for messages, so we can use special ones for
167 incoming TCP/IP. The defaults use stdin. We never need these for any
168 stand-alone tests. */
170 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
171 int (*lwr_receive_getc)(unsigned) = stdin_getc;
172 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
173 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
174 BOOL (*lwr_receive_hasc)(void) = stdin_hasc;
176 int (*receive_getc)(unsigned) = stdin_getc;
177 uschar * (*receive_getbuf)(unsigned *) = NULL;
178 void (*receive_get_cache)(unsigned) = NULL;
179 BOOL (*receive_hasc)(void) = stdin_hasc;
180 int (*receive_ungetc)(int) = stdin_ungetc;
181 int (*receive_feof)(void) = stdin_feof;
182 int (*receive_ferror)(void) = stdin_ferror;
186 /* List of per-address expansion variables for clearing and saving/restoring
187 when verifying one address while routing/verifying another. We have to have
188 the size explicit, because it is referenced from more than one module. */
190 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
191 CUSS &deliver_address_data,
192 CUSS &deliver_domain,
193 CUSS &deliver_domain_data,
194 CUSS &deliver_domain_orig,
195 CUSS &deliver_domain_parent,
196 CUSS &deliver_localpart,
197 CUSS &deliver_localpart_data,
198 CUSS &deliver_localpart_orig,
199 CUSS &deliver_localpart_parent,
200 CUSS &deliver_localpart_prefix,
201 CUSS &deliver_localpart_suffix,
202 CUSS (uschar **)(&deliver_recipients),
210 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
212 /******************************************************************************/
213 /* General global variables. Boolean flags are done as a group
214 so that only one bit each is needed, packed, for all those we never
215 need to take a pointer - and only a char for the rest.
216 This means a struct, unfortunately since it clutters the sourcecode. */
218 struct global_flags f =
220 .acl_temp_details = FALSE,
221 .active_local_from_check = FALSE,
222 .active_local_sender_retain = FALSE,
223 .address_test_mode = FALSE,
225 .allow_auth_unadvertised= FALSE,
226 .allow_unqualified_recipient = TRUE, /* For local messages */
227 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
228 .authentication_local = FALSE,
230 .background_daemon = TRUE,
231 .bdat_readers_wanted = FALSE,
233 .chunking_offered = FALSE,
234 .config_changed = FALSE,
235 .continue_more = FALSE,
237 .daemon_listen = FALSE,
238 .daemon_scion = FALSE,
239 .debug_daemon = FALSE,
240 .deliver_firsttime = FALSE,
241 .deliver_force = FALSE,
242 .deliver_freeze = FALSE,
243 .deliver_force_thaw = FALSE,
244 .deliver_manual_thaw = FALSE,
245 .deliver_selectstring_regex = FALSE,
246 .deliver_selectstring_sender_regex = FALSE,
247 .disable_callout_flush = FALSE,
248 .disable_delay_flush = FALSE,
249 .disable_logging = FALSE,
251 .dkim_disable_verify = FALSE,
252 .dkim_init_done = FALSE,
255 .dmarc_has_been_checked = FALSE,
256 .dmarc_disable_verify = FALSE,
257 .dmarc_enable_forensic = FALSE,
259 .dont_deliver = FALSE,
262 .enable_dollar_recipients = FALSE,
263 .expand_string_forcedfail = FALSE,
265 .filter_running = FALSE,
267 .header_rewritten = FALSE,
268 .helo_verified = FALSE,
269 .helo_verify_failed = FALSE,
270 .host_checking_callout = FALSE,
271 .host_find_failed_syntax= FALSE,
273 .inetd_wait_mode = FALSE,
276 .local_error_message = FALSE,
277 .log_testing_mode = FALSE,
279 #ifdef WITH_CONTENT_SCAN
280 .no_mbox_unspool = FALSE,
282 .no_multiline_responses = FALSE,
283 .notifier_socket_en = TRUE,
285 .parse_allow_group = FALSE,
286 .parse_found_group = FALSE,
287 .pipelining_enable = TRUE,
288 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
289 .proxy_session_failed = FALSE,
292 .queue_2stage = FALSE,
293 .queue_only_policy = FALSE,
294 .queue_run_local = FALSE,
295 .queue_running = FALSE,
299 .receive_call_bombout = FALSE,
300 .recipients_discarded = FALSE,
301 .running_in_test_harness = FALSE,
303 .search_find_defer = FALSE,
304 .sender_address_forced = FALSE,
305 .sender_host_notsocket = FALSE,
306 .sender_host_unknown = FALSE,
307 .sender_local = FALSE,
308 .sender_name_forced = FALSE,
309 .sender_set_untrusted = FALSE,
310 .smtp_authenticated = FALSE,
311 #ifndef DISABLE_PIPE_CONNECT
312 .smtp_in_early_pipe_advertised = FALSE,
313 .smtp_in_early_pipe_no_auth = FALSE,
314 .smtp_in_early_pipe_used = FALSE,
316 .smtp_in_pipelining_advertised = FALSE,
317 .smtp_in_pipelining_used = FALSE,
318 .smtp_in_quit = FALSE,
319 .spool_file_wireformat = FALSE,
320 .submission_mode = FALSE,
321 .suppress_local_fixups = FALSE,
322 .suppress_local_fixups_default = FALSE,
323 .synchronous_delivery = FALSE,
324 .system_filtering = FALSE,
326 .taint_check_slow = FALSE,
327 .testsuite_delays = TRUE,
328 .tcp_fastopen_ok = FALSE,
329 .tcp_in_fastopen = FALSE,
330 .tcp_in_fastopen_data = FALSE,
331 .tcp_in_fastopen_logged = FALSE,
332 .tcp_out_fastopen_logged= FALSE,
333 .timestamps_utc = FALSE,
334 .transport_filter_timed_out = FALSE,
335 .trusted_caller = FALSE,
336 .trusted_config = TRUE,
339 /******************************************************************************/
340 /* These are the flags which are either variables or mainsection options,
341 so an address is needed for access, or are exported to local_scan. */
343 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
344 BOOL allow_domain_literals = FALSE;
345 BOOL allow_mx_to_ip = FALSE;
346 BOOL allow_utf8_domains = FALSE;
347 BOOL authentication_failed = FALSE;
349 BOOL bounce_return_body = TRUE;
350 BOOL bounce_return_message = TRUE;
351 BOOL check_rfc2047_length = TRUE;
352 BOOL commandline_checks_require_admin = FALSE;
354 #ifdef EXPERIMENTAL_DCC
355 BOOL dcc_direct_add_header = FALSE;
357 BOOL debug_store = FALSE;
358 BOOL delivery_date_remove = TRUE;
359 BOOL deliver_drop_privilege = FALSE;
360 #ifdef ENABLE_DISABLE_FSYNC
361 BOOL disable_fsync = FALSE;
363 BOOL disable_ipv6 = FALSE;
364 BOOL dns_csa_use_reverse = TRUE;
365 BOOL drop_cr = FALSE; /* No longer used */
367 BOOL envelope_to_remove = TRUE;
368 BOOL exim_gid_set = TRUE; /* This gid is always set */
369 BOOL exim_uid_set = TRUE; /* This uid is always set */
370 BOOL extract_addresses_remove_arguments = TRUE;
372 BOOL host_checking = FALSE;
373 BOOL host_lookup_deferred = FALSE;
374 BOOL host_lookup_failed = FALSE;
375 BOOL ignore_fromline_local = FALSE;
377 BOOL local_from_check = TRUE;
378 BOOL local_sender_retain = FALSE;
379 BOOL log_timezone = FALSE;
380 BOOL message_body_newlines = FALSE;
381 BOOL message_logs = TRUE;
383 BOOL message_smtputf8 = FALSE;
385 BOOL mua_wrapper = FALSE;
387 BOOL preserve_message_logs = FALSE;
388 BOOL print_topbitchars = FALSE;
389 BOOL prod_requires_admin = TRUE;
390 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMETAL_XCLIENT)
391 BOOL proxy_session = FALSE;
394 #ifndef DISABLE_QUEUE_RAMP
395 BOOL queue_fast_ramp = TRUE;
397 BOOL queue_list_requires_admin = TRUE;
398 BOOL queue_only = FALSE;
399 BOOL queue_only_load_latch = TRUE;
400 BOOL queue_only_override = TRUE;
401 BOOL queue_run_in_order = FALSE;
402 BOOL recipients_max_reject = FALSE;
403 BOOL return_path_remove = TRUE;
405 BOOL smtp_batched_input = FALSE;
406 BOOL sender_helo_dnssec = FALSE;
407 BOOL sender_host_dnssec = FALSE;
408 BOOL smtp_accept_keepalive = TRUE;
409 BOOL smtp_check_spool_space = TRUE;
410 BOOL smtp_enforce_sync = TRUE;
411 BOOL smtp_etrn_serialize = TRUE;
412 BOOL smtp_input = FALSE;
413 BOOL smtp_return_error_details = FALSE;
415 BOOL spf_result_guessed = FALSE;
417 BOOL split_spool_directory = FALSE;
418 BOOL spool_wireformat = FALSE;
419 BOOL strict_acl_vars = FALSE;
420 BOOL strip_excess_angle_brackets = FALSE;
421 BOOL strip_trailing_dot = FALSE;
422 BOOL syslog_duplication = TRUE;
423 BOOL syslog_pid = TRUE;
424 BOOL syslog_timestamp = TRUE;
425 BOOL system_filter_gid_set = FALSE;
426 BOOL system_filter_uid_set = FALSE;
428 BOOL tcp_nodelay = TRUE;
429 BOOL write_rejectlog = TRUE;
431 /******************************************************************************/
433 header_line *acl_added_headers = NULL;
434 tree_node *acl_anchor = NULL;
435 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
436 NULL, NULL, NULL, NULL};
441 uschar *acl_not_smtp = NULL;
442 #ifdef WITH_CONTENT_SCAN
443 uschar *acl_not_smtp_mime = NULL;
445 uschar *acl_not_smtp_start = NULL;
446 uschar *acl_removed_headers = NULL;
447 uschar *acl_smtp_auth = NULL;
448 uschar *acl_smtp_connect = NULL;
449 uschar *acl_smtp_data = NULL;
451 uschar *acl_smtp_data_prdr = US"accept";
454 uschar *acl_smtp_dkim = NULL;
456 uschar *acl_smtp_etrn = NULL;
457 uschar *acl_smtp_expn = NULL;
458 uschar *acl_smtp_helo = NULL;
459 uschar *acl_smtp_mail = NULL;
460 uschar *acl_smtp_mailauth = NULL;
461 #ifdef WITH_CONTENT_SCAN
462 uschar *acl_smtp_mime = NULL;
464 uschar *acl_smtp_notquit = NULL;
465 uschar *acl_smtp_predata = NULL;
466 uschar *acl_smtp_quit = NULL;
467 uschar *acl_smtp_rcpt = NULL;
468 uschar *acl_smtp_starttls = NULL;
469 uschar *acl_smtp_vrfy = NULL;
471 tree_node *acl_var_c = NULL;
472 tree_node *acl_var_m = NULL;
473 uschar *acl_verify_message = NULL;
474 string_item *acl_warn_logged = NULL;
476 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
477 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
479 uschar *acl_wherenames[] = { US"RCPT",
504 uschar *acl_wherecodes[] = { US"550", /* RCPT */
506 US"550", /* PREDATA */
511 US"550", /* RCPT PRDR */
513 US"0", /* not SMTP; not relevant */
515 US"550", /* connect */
518 US"550", /* HELO/EHLO */
519 US"0", /* MAILAUTH; not relevant */
520 US"0", /* not SMTP; not relevant */
521 US"0", /* NOTQUIT; not relevant */
522 US"0", /* QUIT; not relevant */
523 US"550", /* STARTTLS */
525 US"0", /* delivery; not relevant */
526 US"0" /* unknown; not relevant */
529 uschar *add_environment = NULL;
530 address_item *addr_duplicate = NULL;
532 address_item address_defaults = {
537 .start_router = NULL,
542 .fallback_hosts = NULL,
547 .cc_local_part = NULL,
548 .lc_local_part = NULL,
555 .address_retry_key = NULL,
556 .domain_retry_key = NULL,
560 .user_message = NULL,
561 .onetime_parent = NULL,
562 .pipe_expandn = NULL,
563 .return_filename = NULL,
564 .self_hostname = NULL,
565 .shadow_message = NULL,
571 .ocsp = OCSP_NOT_REQ,
573 #ifdef EXPERIMENTAL_DSN_INFO
574 .smtp_greeting = NULL,
575 .helo_response = NULL,
577 .authenticator = NULL,
586 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
587 .localpart_cache = { 0 }, /* localpart_cache - ditto */
590 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
591 .basic_errno = ERRNO_UNKNOWNERROR,
594 .special_action = SPECIAL_NONE,
595 .transport_return = DEFER,
596 .prop = { /* fields that are propagated to children */
597 .address_data = NULL,
599 .localpart_data = NULL,
600 .errors_address = NULL,
601 .extra_headers = NULL,
602 .remove_headers = NULL,
604 .ignore_error = FALSE,
607 .utf8_downcvt = FALSE,
608 .utf8_downcvt_maybe = FALSE
613 uschar *address_file = NULL;
614 uschar *address_pipe = NULL;
615 tree_node *addresslist_anchor = NULL;
616 int addresslist_count = 0;
617 gid_t *admin_groups = NULL;
619 #ifdef EXPERIMENTAL_ARC
620 struct arc_set *arc_received = NULL;
621 int arc_received_instance = 0;
622 int arc_oldest_pass = 0;
623 const uschar *arc_state = NULL;
624 const uschar *arc_state_reason = NULL;
627 uschar *authenticated_fail_id = NULL;
628 uschar *authenticated_id = NULL;
629 uschar *authenticated_sender = NULL;
630 auth_instance *auths = NULL;
631 uschar *auth_advertise_hosts = US"*";
632 auth_instance auth_defaults = {
636 .options_block = NULL,
638 .advertise_condition = NULL,
639 .client_condition = NULL,
642 .set_client_id = NULL,
643 .mail_auth_condition = NULL,
644 .server_debug_string = NULL,
645 .server_condition = NULL,
651 uschar *auth_defer_msg = US"reason not recorded";
652 uschar *auth_defer_user_msg = US"";
653 const uschar *auth_vars[AUTH_VARS];
654 uschar *authenticator_name = NULL;
656 #ifdef WITH_CONTENT_SCAN
657 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
658 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
662 uschar *base62_chars=
663 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
665 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
668 uschar *bi_command = NULL;
669 uschar *big_buffer = NULL;
670 int big_buffer_size = BIG_BUFFER_SIZE;
671 #ifdef EXPERIMENTAL_BRIGHTMAIL
672 uschar *bmi_alt_location = NULL;
673 uschar *bmi_base64_tracker_verdict = NULL;
674 uschar *bmi_base64_verdict = NULL;
675 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
678 uschar *bmi_verdicts = NULL;
680 int bsmtp_transaction_linecount = 0;
681 int body_8bitmime = 0;
682 int body_linecount = 0;
683 int body_zerocount = 0;
684 uschar *bounce_message_file = NULL;
685 uschar *bounce_message_text = NULL;
686 uschar *bounce_recipient = NULL;
687 int bounce_return_linesize_limit = 998;
688 int bounce_return_size_limit = 100*1024;
689 uschar *bounce_sender_authentication = NULL;
691 uschar *callout_address = NULL;
692 int callout_cache_domain_positive_expire = 7*24*60*60;
693 int callout_cache_domain_negative_expire = 3*60*60;
694 int callout_cache_positive_expire = 24*60*60;
695 int callout_cache_negative_expire = 2*60*60;
696 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
697 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
698 int check_log_inodes = 100;
699 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
700 int check_spool_inodes = 100;
701 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
703 uschar *chunking_advertise_hosts = US"*";
704 unsigned chunking_datasize = 0;
705 unsigned chunking_data_left = 0;
706 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
707 const pcre2_code *regex_CHUNKING = NULL;
709 #ifdef EXPERIMENTAL_ESMTP_LIMITS
710 const pcre2_code *regex_LIMITS = NULL;
713 uschar *client_authenticator = NULL;
714 uschar *client_authenticated_id = NULL;
715 uschar *client_authenticated_sender = NULL;
716 #ifndef DISABLE_CLIENT_CMD_LOG
717 gstring *client_cmd_log = NULL;
719 int clmacro_count = 0;
720 uschar *clmacros[MAX_CLMACROS];
721 FILE *config_file = NULL;
722 const uschar *config_filename = NULL;
723 int config_lineno = 0;
724 #ifdef CONFIGURE_GROUP
725 gid_t config_gid = CONFIGURE_GROUP;
727 gid_t config_gid = 0;
729 uschar *config_main_filelist = US CONFIGURE_FILE
730 "\0<-----------Space to patch configure_filename->";
731 uschar *config_main_filename = NULL;
732 uschar *config_main_directory = NULL;
734 #ifdef CONFIGURE_OWNER
735 uid_t config_uid = CONFIGURE_OWNER;
737 uid_t config_uid = 0;
740 int connection_max_messages= -1;
741 uschar *continue_proxy_cipher = NULL;
742 BOOL continue_proxy_dane = FALSE;
743 uschar *continue_proxy_sni = NULL;
744 uschar *continue_hostname = NULL;
745 uschar *continue_host_address = NULL;
746 int continue_sequence = 1;
747 uschar *continue_transport = NULL;
748 #ifdef EXPERIMENTAL_ESMTP_LIMITS
749 unsigned continue_limit_mail = 0;
750 unsigned continue_limit_rcpt = 0;
751 unsigned continue_limit_rcptdom= 0;
754 uschar *csa_status = NULL;
756 .callout_hold_only = FALSE, /* verify-only: normal delivery */
757 .delivery = FALSE, /* when to attempt */
758 .defer_pass = FALSE, /* on defer: spool locally */
759 .is_tls = FALSE, /* not a TLS conn yet */
760 .cctx = {.sock = -1}, /* open connection */
761 .nrcpt = 0, /* number of addresses */
764 int daemon_notifier_fd = -1;
765 uschar *daemon_smtp_port = US"smtp";
766 int daemon_startup_retries = 9;
767 int daemon_startup_sleep = 30;
769 #ifdef EXPERIMENTAL_DCC
770 uschar *dcc_header = NULL;
771 uschar *dcc_result = NULL;
772 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
773 uschar *dccifd_options = US"header";
777 FILE *debug_file = NULL;
778 int debug_notall[] = {
783 bit_table debug_options[] = { /* must be in alphabetical order and use
784 only the enum values from macro.h */
788 BIT_TABLE(D, deliver),
792 BIT_TABLE(D, expand),
793 BIT_TABLE(D, filter),
794 BIT_TABLE(D, hints_lookup),
795 BIT_TABLE(D, host_lookup),
797 BIT_TABLE(D, interface),
800 BIT_TABLE(D, local_scan),
801 BIT_TABLE(D, lookup),
802 BIT_TABLE(D, memory),
803 BIT_TABLE(D, noutf8),
805 BIT_TABLE(D, process_info),
806 BIT_TABLE(D, queue_run),
807 BIT_TABLE(D, receive),
808 BIT_TABLE(D, resolver),
810 BIT_TABLE(D, rewrite),
812 BIT_TABLE(D, timestamp),
814 BIT_TABLE(D, transport),
816 BIT_TABLE(D, verify),
818 int debug_options_count = nelem(debug_options);
819 uschar debuglog_name[LOG_NAME_SIZE] = {0};
820 unsigned debug_pretrigger_bsize = 0;
821 uschar * debug_pretrigger_buf = NULL;
822 unsigned int debug_selector = 0;
824 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
825 uschar *delay_warning_condition=
827 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
828 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
829 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
831 uschar *deliver_address_data = NULL;
832 int deliver_datafile = -1;
833 const uschar *deliver_domain = NULL;
834 uschar *deliver_domain_data = NULL;
835 const uschar *deliver_domain_orig = NULL;
836 const uschar *deliver_domain_parent = NULL;
837 time_t deliver_frozen_at = 0;
838 uschar *deliver_home = NULL;
839 const uschar *deliver_host = NULL;
840 const uschar *deliver_host_address = NULL;
841 int deliver_host_port = 0;
842 uschar *deliver_in_buffer = NULL;
843 ino_t deliver_inode = 0;
844 uschar *deliver_localpart = NULL;
845 uschar *deliver_localpart_data = NULL;
846 uschar *deliver_localpart_orig = NULL;
847 uschar *deliver_localpart_parent = NULL;
848 uschar *deliver_localpart_prefix = NULL;
849 uschar *deliver_localpart_prefix_v = NULL;
850 uschar *deliver_localpart_suffix = NULL;
851 uschar *deliver_localpart_suffix_v = NULL;
852 uschar *deliver_out_buffer = NULL;
853 int deliver_queue_load_max = -1;
854 address_item *deliver_recipients = NULL;
855 uschar *deliver_selectstring = NULL;
856 uschar *deliver_selectstring_sender = NULL;
859 unsigned dkim_collect_input = 0;
860 uschar *dkim_cur_signer = NULL;
861 int dkim_key_length = 0;
862 void *dkim_signatures = NULL;
863 uschar *dkim_signers = NULL;
864 uschar *dkim_signing_domain = NULL;
865 uschar *dkim_signing_selector = NULL;
866 uschar *dkim_verify_hashes = US"sha256:sha512";
867 uschar *dkim_verify_keytypes = US"ed25519:rsa";
868 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
869 BOOL dkim_verify_minimal = FALSE;
870 uschar *dkim_verify_overall = NULL;
871 uschar *dkim_verify_signers = US"$dkim_signers";
872 uschar *dkim_verify_status = NULL;
873 uschar *dkim_verify_reason = NULL;
876 uschar *dmarc_domain_policy = NULL;
877 uschar *dmarc_forensic_sender = NULL;
878 uschar *dmarc_history_file = NULL;
879 uschar *dmarc_status = NULL;
880 uschar *dmarc_status_text = NULL;
881 uschar *dmarc_tld_file = NULL;
882 uschar *dmarc_used_domain = NULL;
885 uschar *dns_again_means_nonexist = NULL;
886 int dns_csa_search_limit = 5;
887 int dns_cname_loops = 1;
889 int dns_dane_ok = -1;
891 uschar *dns_ipv4_lookup = NULL;
894 int dns_dnssec_ok = -1; /* <0 = not coerced */
895 uschar *dns_trust_aa = NULL;
896 int dns_use_edns0 = -1; /* <0 = not coerced */
897 uschar *dnslist_domain = NULL;
898 uschar *dnslist_matched = NULL;
899 uschar *dnslist_text = NULL;
900 uschar *dnslist_value = NULL;
901 tree_node *domainlist_anchor = NULL;
902 int domainlist_count = 0;
903 const uschar *driver_srcfile = NULL;
904 int driver_srcline = 0;
905 uschar *dsn_from = US DEFAULT_DSN_FROM;
906 unsigned int dtrigger_selector = 0;
908 int errno_quota = ERRNO_QUOTA;
909 uschar *errors_copy = NULL;
910 int error_handling = ERRORS_SENDER;
911 uschar *errors_reply_to = NULL;
912 int errors_sender_rc = EXIT_FAILURE;
913 #ifndef DISABLE_EVENT
914 uschar *event_action = NULL; /* expansion for delivery events */
915 uschar *event_data = NULL; /* auxiliary data variable for event */
916 int event_defer_errno = 0;
917 const uschar *event_name = NULL; /* event name variable */
921 gid_t exim_gid = EXIM_GID;
922 uschar *exim_path = US BIN_DIRECTORY "/exim"
923 "\0<---------------Space to patch exim_path->";
924 uid_t exim_uid = EXIM_UID;
925 int expand_level = 0; /* Nesting depth, indent for debug */
926 int expand_forbid = 0;
927 int expand_nlength[EXPAND_MAXN+1];
928 int expand_nmax = -1;
929 const uschar *expand_nstring[EXPAND_MAXN+1];
930 uschar *expand_string_message;
931 uschar *extra_local_interfaces = NULL;
933 int fake_response = OK;
934 uschar *fake_response_text = US"Your message has been rejected but is "
935 "being kept for evaluation.\nIf it was a "
936 "legitimate message, it may still be "
937 "delivered to the target recipient(s).";
938 int filter_n[FILTER_VARIABLE_COUNT];
939 int filter_sn[FILTER_VARIABLE_COUNT];
940 int filter_test = FTEST_NONE;
941 uschar *filter_test_sfile = NULL;
942 uschar *filter_test_ufile = NULL;
943 uschar *filter_thisaddress = NULL;
944 int finduser_retries = 0;
945 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
946 uschar *freeze_tell = NULL;
947 uschar *freeze_tell_config = NULL;
948 uschar *fudged_queue_times = US"";
950 uschar *gecos_name = NULL;
951 uschar *gecos_pattern = NULL;
952 rewrite_rule *global_rewrite_rules = NULL;
954 volatile sig_atomic_t had_command_timeout = 0;
955 volatile sig_atomic_t had_command_sigterm = 0;
956 volatile sig_atomic_t had_data_timeout = 0;
957 volatile sig_atomic_t had_data_sigint = 0;
958 const uschar *headers_charset = US HEADERS_CHARSET;
959 int header_insert_maxlen = 64 * 1024;
960 header_line *header_last = NULL;
961 header_line *header_list = NULL;
962 int header_maxsize = HEADER_MAXSIZE;
963 int header_line_maxsize = 0;
965 header_name header_names[] = {
966 /* name len allow_resent htype */
967 { US"bcc", 3, TRUE, htype_bcc },
968 { US"cc", 2, TRUE, htype_cc },
969 { US"date", 4, TRUE, htype_date },
970 { US"delivery-date", 13, FALSE, htype_delivery_date },
971 { US"envelope-to", 11, FALSE, htype_envelope_to },
972 { US"from", 4, TRUE, htype_from },
973 { US"message-id", 10, TRUE, htype_id },
974 { US"received", 8, FALSE, htype_received },
975 { US"reply-to", 8, FALSE, htype_reply_to },
976 { US"return-path", 11, FALSE, htype_return_path },
977 { US"sender", 6, TRUE, htype_sender },
978 { US"subject", 7, FALSE, htype_subject },
979 { US"to", 2, TRUE, htype_to }
982 int header_names_size = nelem(header_names);
984 uschar *helo_accept_junk_hosts = NULL;
985 uschar *helo_allow_chars = US"";
986 uschar *helo_lookup_domains = US"@ : @[]";
987 uschar *helo_try_verify_hosts = NULL;
988 uschar *helo_verify_hosts = NULL;
989 const uschar *hex_digits = CUS"0123456789abcdef";
990 uschar *hold_domains = NULL;
991 uschar *host_data = NULL;
992 uschar *host_lookup = NULL;
993 uschar *host_lookup_order = US"bydns:byaddr";
994 uschar *host_lookup_msg = US"";
996 uschar *host_number_string = NULL;
997 uschar *host_reject_connection = NULL;
998 uschar *hosts_connection_nolog = NULL;
1000 uschar *hosts_proxy = NULL;
1002 uschar *hosts_treat_as_local = NULL;
1003 uschar *hosts_require_helo = US"*";
1004 #ifdef EXPERIMENTAL_XCLIENT
1005 uschar *hosts_xclient = NULL;
1007 tree_node *hostlist_anchor = NULL;
1008 int hostlist_count = 0;
1011 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
1012 uschar *ignore_fromline_hosts = NULL;
1013 int inetd_wait_timeout = -1;
1014 uschar *initial_cwd = NULL;
1015 uschar *interface_address = NULL;
1016 int interface_port = -1;
1017 uschar *iterate_item = NULL;
1019 int journal_fd = -1;
1021 uschar *keep_environment = NULL;
1023 int keep_malformed = 4*24*60*60; /* 4 days */
1025 uschar *eldap_dn = NULL;
1026 const uschar *letter_digit_hyphen_dot =
1027 US"abcdefghijklmnopqrstuvwxyz"
1029 "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
1030 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1031 uschar *limits_advertise_hosts = US"*";
1033 int load_average = -2;
1034 uschar *local_from_prefix = NULL;
1035 uschar *local_from_suffix = NULL;
1038 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1040 uschar *local_interfaces = US"0.0.0.0";
1043 #ifdef HAVE_LOCAL_SCAN
1044 uschar *local_scan_data = NULL;
1045 int local_scan_timeout = 5*60;
1047 gid_t local_user_gid = (gid_t)(-1);
1048 uid_t local_user_uid = (uid_t)(-1);
1050 tree_node *localpartlist_anchor= NULL;
1051 int localpartlist_count = 0;
1052 uschar *log_buffer = NULL;
1054 int log_default[] = { /* for initializing log_selector */
1055 Li_acl_warn_skipped,
1056 Li_connection_reject,
1061 Li_host_lookup_failed,
1062 Li_lost_incoming_connection,
1063 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1066 Li_queue_time_exclusive,
1069 Li_sender_verify_fail,
1072 Li_smtp_confirmation,
1073 Li_tls_certificate_verified,
1078 uschar *log_file_path = US LOG_FILE_PATH
1079 "\0<--------------Space to patch log_file_path->";
1081 int log_notall[] = {
1084 bit_table log_options[] = { /* must be in alphabetical order,
1085 with definitions from enum logbit. */
1086 BIT_TABLE(L, 8bitmime),
1087 BIT_TABLE(L, acl_warn_skipped),
1088 BIT_TABLE(L, address_rewrite),
1090 BIT_TABLE(L, all_parents),
1091 BIT_TABLE(L, arguments),
1092 BIT_TABLE(L, connection_reject),
1093 BIT_TABLE(L, delay_delivery),
1094 BIT_TABLE(L, deliver_time),
1095 BIT_TABLE(L, delivery_size),
1096 #ifndef DISABLE_DKIM
1098 BIT_TABLE(L, dkim_verbose),
1100 BIT_TABLE(L, dnslist_defer),
1101 BIT_TABLE(L, dnssec),
1103 BIT_TABLE(L, host_lookup_failed),
1104 BIT_TABLE(L, ident_timeout),
1105 BIT_TABLE(L, incoming_interface),
1106 BIT_TABLE(L, incoming_port),
1107 BIT_TABLE(L, lost_incoming_connection),
1108 BIT_TABLE(L, millisec),
1109 BIT_TABLE(L, msg_id),
1110 BIT_TABLE(L, msg_id_created),
1111 BIT_TABLE(L, outgoing_interface),
1112 BIT_TABLE(L, outgoing_port),
1114 BIT_TABLE(L, pipelining),
1115 BIT_TABLE(L, protocol_detail),
1116 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1117 BIT_TABLE(L, proxy),
1119 BIT_TABLE(L, queue_run),
1120 BIT_TABLE(L, queue_time),
1121 BIT_TABLE(L, queue_time_exclusive),
1122 BIT_TABLE(L, queue_time_overall),
1123 BIT_TABLE(L, receive_time),
1124 BIT_TABLE(L, received_recipients),
1125 BIT_TABLE(L, received_sender),
1126 BIT_TABLE(L, rejected_header),
1127 { US"rejected_headers", Li_rejected_header },
1128 BIT_TABLE(L, retry_defer),
1129 BIT_TABLE(L, return_path_on_delivery),
1130 BIT_TABLE(L, sender_on_delivery),
1131 BIT_TABLE(L, sender_verify_fail),
1132 BIT_TABLE(L, size_reject),
1133 BIT_TABLE(L, skip_delivery),
1134 BIT_TABLE(L, smtp_confirmation),
1135 BIT_TABLE(L, smtp_connection),
1136 BIT_TABLE(L, smtp_incomplete_transaction),
1137 BIT_TABLE(L, smtp_mailauth),
1138 BIT_TABLE(L, smtp_no_mail),
1139 BIT_TABLE(L, smtp_protocol_error),
1140 BIT_TABLE(L, smtp_syntax_error),
1141 BIT_TABLE(L, subject),
1142 BIT_TABLE(L, tls_certificate_verified),
1143 BIT_TABLE(L, tls_cipher),
1144 BIT_TABLE(L, tls_peerdn),
1145 BIT_TABLE(L, tls_resumption),
1146 BIT_TABLE(L, tls_sni),
1147 BIT_TABLE(L, unknown_in_list),
1149 int log_options_count = nelem(log_options);
1151 int log_reject_target = 0;
1152 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1153 uschar *log_selector_string = NULL;
1154 FILE *log_stderr = NULL;
1155 uschar *login_sender_address = NULL;
1156 uschar *lookup_dnssec_authenticated = NULL;
1157 int lookup_open_max = 25;
1158 uschar *lookup_value = NULL;
1160 macro_item *macros_user = NULL;
1161 uschar *mailstore_basename = NULL;
1162 #ifdef WITH_CONTENT_SCAN
1163 uschar *malware_name = NULL; /* Virus Name */
1165 int max_received_linelength= 0;
1166 int max_username_length = 0;
1167 int message_age = 0;
1168 uschar *message_body = NULL;
1169 uschar *message_body_end = NULL;
1170 int message_body_size = 0;
1171 int message_body_visible = 500;
1172 int message_ended = END_NOTSTARTED;
1173 uschar *message_headers = NULL;
1175 uschar *message_id_domain = NULL;
1176 uschar *message_id_text = NULL;
1177 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1178 uschar *message_id_external;
1179 int message_linecount = 0;
1180 int message_size = 0;
1181 uschar *message_size_limit = US"50M";
1183 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1185 uschar message_subdir[2] = { 0, 0 };
1186 uschar *message_reference = NULL;
1188 /* MIME ACL expandables */
1189 #ifdef WITH_CONTENT_SCAN
1190 int mime_anomaly_level = 0;
1191 const uschar *mime_anomaly_text = NULL;
1192 uschar *mime_boundary = NULL;
1193 uschar *mime_charset = NULL;
1194 uschar *mime_content_description = NULL;
1195 uschar *mime_content_disposition = NULL;
1196 uschar *mime_content_id = NULL;
1197 unsigned int mime_content_size = 0;
1198 uschar *mime_content_transfer_encoding = NULL;
1199 uschar *mime_content_type = NULL;
1200 uschar *mime_decoded_filename = NULL;
1201 uschar *mime_filename = NULL;
1202 int mime_is_multipart = 0;
1203 int mime_is_coverletter = 0;
1204 int mime_is_rfc822 = 0;
1205 int mime_part_count = -1;
1208 uid_t *never_users = NULL;
1209 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1211 const int on = 1; /* for setsockopt */
1214 uid_t original_euid;
1215 gid_t originator_gid;
1216 uschar *originator_login = NULL;
1217 uschar *originator_name = NULL;
1218 uid_t originator_uid;
1219 uschar *override_local_interfaces = NULL;
1220 uschar *override_pid_file_path = NULL;
1222 BOOL panic_coredump = FALSE;
1223 pcre2_general_context * pcre_gen_ctx = NULL;
1224 pcre2_compile_context * pcre_gen_cmp_ctx = NULL;
1225 pcre2_match_context * pcre_gen_mtc_ctx = NULL;
1226 pcre2_general_context * pcre_mlc_ctx = NULL;
1227 pcre2_compile_context * pcre_mlc_cmp_ctx = NULL;
1229 uschar *percent_hack_domains = NULL;
1230 uschar *pid_file_path = US PID_FILE_PATH
1231 "\0<--------------Space to patch pid_file_path->";
1232 #ifndef DISABLE_PIPE_CONNECT
1233 uschar *pipe_connect_advertise_hosts = US"*";
1235 uschar *pipelining_advertise_hosts = US"*";
1236 uschar *primary_hostname = NULL;
1237 uschar *process_info;
1238 int process_info_len = 0;
1239 uschar *process_log_path = NULL;
1240 const uschar *process_purpose = US"fresh-exec";
1242 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMENTAL_XCLIENT)
1243 uschar *proxy_external_address = NULL;
1244 int proxy_external_port = 0;
1245 uschar *proxy_local_address = NULL;
1246 int proxy_local_port = 0;
1247 int proxy_protocol_timeout = 3;
1250 uschar *prvscheck_address = NULL;
1251 uschar *prvscheck_keynum = NULL;
1252 uschar *prvscheck_result = NULL;
1255 qrunner *qrunners = NULL;
1257 const uschar *qualify_domain_recipient = NULL;
1258 uschar *qualify_domain_sender = NULL;
1259 uschar *queue_domains = NULL;
1260 int queue_interval = -1;
1261 uschar *queue_name = US"";
1262 uschar *queue_name_dest = NULL;
1263 uschar *queue_only_file = NULL;
1264 int queue_only_load = -1;
1265 uschar *queue_run_max = US"5";
1266 pid_t queue_run_pid = (pid_t)0;
1267 int queue_run_pipe = -1;
1268 unsigned queue_size = 0;
1269 time_t queue_size_next = 0;
1270 uschar *queue_smtp_domains = NULL;
1272 uint32_t random_seed = 0;
1273 tree_node *ratelimiters_cmd = NULL;
1274 tree_node *ratelimiters_conn = NULL;
1275 tree_node *ratelimiters_mail = NULL;
1276 uschar *raw_active_hostname = NULL;
1277 uschar *raw_sender = NULL;
1278 uschar **raw_recipients = NULL;
1279 int raw_recipients_count = 0;
1282 int rcpt_fail_count = 0;
1283 int rcpt_defer_count = 0;
1286 int receive_linecount = 0;
1287 int receive_messagecount = 0;
1288 int receive_timeout = 0;
1289 int received_count = 0;
1290 uschar *received_for = NULL;
1292 /* This is the default text for Received headers generated by Exim. The
1293 date will be automatically added on the end. */
1295 uschar *received_header_text = US
1297 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1298 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1299 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1300 "by $primary_hostname "
1301 "${if def:received_protocol {with $received_protocol }}"
1303 "${if def:tls_in_ver { ($tls_in_ver)}}"
1304 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1306 "(Exim $version_number)\n\t"
1307 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1308 "id $message_exim_id"
1309 "${if def:received_for {\n\tfor $received_for}}"
1310 "\0<---------------Space to patch received_header_text->";
1312 int received_headers_max = 30;
1313 uschar *received_protocol = NULL;
1314 struct timeval received_time = { 0, 0 };
1315 struct timeval received_time_complete = { 0, 0 };
1316 uschar *recipient_data = NULL;
1317 uschar *recipient_unqualified_hosts = NULL;
1318 uschar *recipient_verify_failure = NULL;
1319 int recipients_count = 0;
1320 recipient_item *recipients_list = NULL;
1321 int recipients_list_max = 0;
1322 int recipients_max = 50000;
1323 const pcre2_code *regex_AUTH = NULL;
1324 const pcre2_code *regex_check_dns_names = NULL;
1325 const pcre2_code *regex_From = NULL;
1326 const pcre2_code *regex_IGNOREQUOTA = NULL;
1327 const pcre2_code *regex_PIPELINING = NULL;
1328 const pcre2_code *regex_SIZE = NULL;
1329 #ifndef DISABLE_PIPE_CONNECT
1330 const pcre2_code *regex_EARLY_PIPE = NULL;
1332 int regex_cachesize = 0;
1333 const pcre2_code *regex_ismsgid = NULL;
1334 const pcre2_code *regex_smtp_code = NULL;
1335 const uschar *regex_vars[REGEX_VARS] = { NULL };
1336 #ifdef WHITELIST_D_MACROS
1337 const pcre2_code *regex_whitelisted_macro = NULL;
1339 #ifdef WITH_CONTENT_SCAN
1340 uschar *regex_match_string = NULL;
1342 int remote_delivery_count = 0;
1343 int remote_max_parallel = 4;
1344 uschar *remote_sort_domains = NULL;
1345 int retry_data_expire = 7*24*60*60;
1346 int retry_interval_max = 24*60*60;
1347 int retry_maximum_timeout = 0; /* set from retry config */
1348 retry_config *retries = NULL;
1349 uschar *return_path = NULL;
1350 int rewrite_existflags = 0;
1351 uschar *rfc1413_hosts = US"@[]";
1352 int rfc1413_query_timeout = 0;
1353 uid_t root_gid = ROOT_GID;
1354 uid_t root_uid = ROOT_UID;
1356 router_instance *routers = NULL;
1357 router_instance router_defaults = {
1361 .options_block = NULL,
1362 .driver_name = NULL,
1364 .address_data = NULL,
1365 #ifdef EXPERIMENTAL_BRIGHTMAIL
1368 .cannot_route_message = NULL,
1370 .current_directory = NULL,
1371 .debug_string = NULL,
1376 .expand_more = NULL,
1377 .expand_unseen = NULL,
1378 .extra_headers = NULL,
1379 .fallback_hosts = NULL,
1380 .home_directory = NULL,
1381 .ignore_target_hosts = NULL,
1382 .local_parts = NULL,
1383 .pass_router_name = NULL,
1385 .redirect_router_name = NULL,
1386 .remove_headers = NULL,
1387 .require_files = NULL,
1388 .router_home_directory = NULL,
1392 .translate_ip_address = NULL,
1393 .transport_name = NULL,
1395 .address_test = TRUE,
1396 #ifdef EXPERIMENTAL_BRIGHTMAIL
1397 .bmi_deliver_alternate = FALSE,
1398 .bmi_deliver_default = FALSE,
1399 .bmi_dont_deliver = FALSE,
1402 .caseful_local_part = FALSE,
1403 .check_local_user = FALSE,
1404 .disable_logging = FALSE,
1405 .fail_verify_recipient = FALSE,
1406 .fail_verify_sender = FALSE,
1408 .initgroups = FALSE,
1409 .log_as_local = TRUE_UNSET,
1411 .pass_on_timeout = FALSE,
1412 .prefix_optional = FALSE,
1414 .retry_use_local_part = TRUE_UNSET,
1415 .same_domain_copy_routing = FALSE,
1416 .self_rewrite = FALSE,
1418 .suffix_optional = FALSE,
1419 .verify_only = FALSE,
1420 .verify_recipient = TRUE,
1421 .verify_sender = TRUE,
1424 .dsn_lasthop = FALSE,
1426 .self_code = self_freeze,
1430 .fallback_hostlist = NULL,
1432 .pass_router = NULL,
1433 .redirect_router = NULL,
1435 .dnssec = { .request= US"*", .require=NULL },
1438 uschar *router_name = NULL;
1439 tree_node *router_var = NULL;
1441 ip_address_item *running_interfaces = NULL;
1443 /* This is a weird one. The following string gets patched in the binary by the
1444 script that sets up a copy of Exim for running in the test harness. It seems
1445 that compilers are now clever, and share constant strings if they can.
1446 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1447 make use of the end of this string in order to save space. So the patching then
1448 wrecks this. We defeat this optimization by adding some additional characters
1449 onto the end of the string. */
1451 uschar *running_status = US">>>running<<<" "\0EXTRA";
1455 uschar *search_error_message = NULL;
1456 uschar *self_hostname = NULL;
1457 uschar *sender_address = NULL;
1458 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1459 uschar *sender_address_data = NULL;
1460 uschar *sender_address_unrewritten = NULL;
1461 uschar *sender_data = NULL;
1462 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1463 uschar *sender_fullhost = NULL;
1464 uschar *sender_helo_name = NULL;
1465 uschar **sender_host_aliases = &no_aliases;
1466 uschar *sender_host_address = NULL;
1467 uschar *sender_host_authenticated = NULL;
1468 uschar *sender_host_auth_pubname = NULL;
1469 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1470 uschar *sender_host_name = NULL;
1471 int sender_host_port = 0;
1472 uschar *sender_ident = NULL;
1473 uschar *sender_rate = NULL;
1474 uschar *sender_rate_limit = NULL;
1475 uschar *sender_rate_period = NULL;
1476 uschar *sender_rcvhost = NULL;
1477 uschar *sender_unqualified_hosts = NULL;
1478 uschar *sender_verify_failure = NULL;
1479 address_item *sender_verified_list = NULL;
1480 address_item *sender_verified_failed = NULL;
1481 int sender_verified_rc = -1;
1482 uschar *sending_ip_address = NULL;
1483 int sending_port = -1;
1484 SIGNAL_BOOL sigalrm_seen = FALSE;
1485 const uschar *sigalarm_setter = NULL;
1486 uschar **sighup_argv = NULL;
1487 int slow_lookup_log = 0; /* millisecs, zero disables */
1488 int smtp_accept_count = 0;
1489 int smtp_accept_max = 20;
1490 int smtp_accept_max_nonmail= 10;
1491 uschar *smtp_accept_max_nonmail_hosts = US"*";
1492 uschar *smtp_accept_max_per_connection = US"1000";
1493 uschar *smtp_accept_max_per_host = NULL;
1494 int smtp_accept_queue = 0;
1495 int smtp_accept_queue_per_connection = 10;
1496 int smtp_accept_reserve = 0;
1497 uschar *smtp_active_hostname = NULL;
1498 int smtp_backlog_monitor = 0;
1499 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1500 "Exim $version_number $tod_full"
1501 "\0<---------------Space to patch smtp_banner->";
1502 int smtp_ch_index = 0;
1503 uschar *smtp_cmd_argument = NULL;
1504 uschar *smtp_cmd_buffer = NULL;
1505 struct timeval smtp_connection_start = {0,0};
1506 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1507 int smtp_connect_backlog = 20;
1508 double smtp_delay_mail = 0.0;
1509 double smtp_delay_rcpt = 0.0;
1510 FILE *smtp_in = NULL;
1511 int smtp_listen_backlog = 0;
1512 int smtp_load_reserve = -1;
1513 int smtp_mailcmd_count = 0;
1514 int smtp_mailcmd_max = -1;
1515 FILE *smtp_out = NULL;
1516 uschar *smtp_etrn_command = NULL;
1517 int smtp_max_synprot_errors= 3;
1518 int smtp_max_unknown_commands = 3;
1519 uschar *smtp_notquit_reason = NULL;
1520 unsigned smtp_peer_options = 0;
1521 unsigned smtp_peer_options_wrap= 0;
1522 uschar *smtp_ratelimit_hosts = NULL;
1523 uschar *smtp_ratelimit_mail = NULL;
1524 uschar *smtp_ratelimit_rcpt = NULL;
1525 uschar *smtp_read_error = US"";
1526 int smtp_receive_timeout = 5*60;
1527 uschar *smtp_receive_timeout_s = NULL;
1528 uschar *smtp_reserve_hosts = NULL;
1529 int smtp_rlm_base = 0;
1530 double smtp_rlm_factor = 0.0;
1531 int smtp_rlm_limit = 0;
1532 int smtp_rlm_threshold = INT_MAX;
1533 int smtp_rlr_base = 0;
1534 double smtp_rlr_factor = 0.0;
1535 int smtp_rlr_limit = 0;
1536 int smtp_rlr_threshold = INT_MAX;
1538 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1541 #ifdef WITH_CONTENT_SCAN
1542 uschar *spamd_address = US"127.0.0.1 783";
1543 uschar *spam_bar = NULL;
1544 uschar *spam_report = NULL;
1545 uschar *spam_action = NULL;
1546 uschar *spam_score = NULL;
1547 uschar *spam_score_int = NULL;
1550 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1551 uschar *spf_header_comment = NULL;
1552 uschar *spf_received = NULL;
1553 uschar *spf_result = NULL;
1554 uschar *spf_smtp_comment = NULL;
1555 uschar *spf_smtp_comment_template
1556 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1557 = US"Please%_see%_http://www.open-spf.org/Why";
1561 FILE *spool_data_file = NULL;
1562 uschar *spool_directory = US SPOOL_DIRECTORY
1563 "\0<--------------Space to patch spool_directory->";
1565 uschar *srs_recipient = NULL;
1567 int string_datestamp_offset= -1;
1568 int string_datestamp_length= 0;
1569 int string_datestamp_type = -1;
1570 const uschar *submission_domain = NULL;
1571 const uschar *submission_name = NULL;
1572 int syslog_facility = LOG_MAIL;
1573 uschar *syslog_processname = US"exim";
1574 uschar *system_filter = NULL;
1576 uschar *system_filter_directory_transport = NULL;
1577 uschar *system_filter_file_transport = NULL;
1578 uschar *system_filter_pipe_transport = NULL;
1579 uschar *system_filter_reply_transport = NULL;
1581 gid_t system_filter_gid = 0;
1582 uid_t system_filter_uid = (uid_t)-1;
1584 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1585 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1586 #ifdef USE_TCP_WRAPPERS
1587 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1589 int test_harness_load_avg = 0;
1590 int thismessage_size_limit = 0;
1591 int timeout_frozen_after = 0;
1592 #ifdef MEASURE_TIMING
1593 struct timeval timestamp_startup;
1596 transport_instance *transports = NULL;
1598 transport_instance transport_defaults = {
1599 /* All non-mentioned elements zero/NULL/FALSE */
1601 .multi_domain = TRUE,
1602 .max_addresses = US"100",
1603 .connection_max_messages = 500,
1606 .filter_timeout = 300,
1607 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1608 1 nor 0 so can detect unset */
1611 int transport_count;
1612 uschar *transport_name = NULL;
1613 int transport_newlines;
1614 const uschar **transport_filter_argv = NULL;
1615 int transport_filter_timeout;
1616 int transport_write_timeout= 0;
1618 tree_node *tree_dns_fails = NULL;
1619 tree_node *tree_duplicates = NULL;
1620 tree_node *tree_nonrecipients = NULL;
1621 tree_node *tree_unusable = NULL;
1623 gid_t *trusted_groups = NULL;
1624 uid_t *trusted_users = NULL;
1625 uschar *timezone_string = US TIMEZONE_DEFAULT;
1627 uschar *unknown_login = NULL;
1628 uschar *unknown_username = NULL;
1629 uschar *untrusted_set_sender = NULL;
1631 /* A regex for matching a "From_" line in an incoming message, in the form
1633 From ph10 Fri Jan 5 12:35 GMT 1996
1635 which the "mail" commands send to the MTA (undocumented, of course), or in
1638 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1640 which is apparently used by some UUCPs, despite it not being in RFC 976.
1641 Because of variations in time formats, just match up to the minutes. That
1642 should be sufficient. Examples have been seen of time fields like 12:1:03,
1643 so just require one digit for hours and minutes. The weekday is also absent
1646 uschar *uucp_from_pattern = US
1647 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1648 "(?:" /* Non-extracting bracket */
1649 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1650 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1651 ")" /* End alternation */
1652 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1654 uschar *uucp_from_sender = US"$1";
1656 uschar *verify_mode = NULL;
1657 uschar *version_copyright =
1658 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1659 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2022";
1660 uschar *version_date = US"?";
1661 uschar *version_cnumber = US"????";
1662 uschar *version_string = US"?";
1664 uschar *warn_message_file = NULL;
1665 int warning_count = 0;
1666 const uschar *warnmsg_delay = NULL;
1667 const uschar *warnmsg_recipients = NULL;
1669 /* End of globals.c */