1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* Copyright (c) The Exim Maintainers 2020 - 2021 */
7 /* See the file NOTICE for conditions of use and distribution. */
9 /* All the global variables are defined together in this one module, so
10 that they are easy to find. */
15 /* Generic options for auths, all of which live inside auth_instance
16 data blocks and hence have the opt_public flag set. */
18 optionlist optionlist_auths[] = {
19 { "client_condition", opt_stringptr | opt_public,
20 OPT_OFF(auth_instance, client_condition) },
21 { "client_set_id", opt_stringptr | opt_public,
22 OPT_OFF(auth_instance, set_client_id) },
23 { "driver", opt_stringptr | opt_public,
24 OPT_OFF(auth_instance, driver_name) },
25 { "public_name", opt_stringptr | opt_public,
26 OPT_OFF(auth_instance, public_name) },
27 { "server_advertise_condition", opt_stringptr | opt_public,
28 OPT_OFF(auth_instance, advertise_condition)},
29 { "server_condition", opt_stringptr | opt_public,
30 OPT_OFF(auth_instance, server_condition) },
31 { "server_debug_print", opt_stringptr | opt_public,
32 OPT_OFF(auth_instance, server_debug_string) },
33 { "server_mail_auth_condition", opt_stringptr | opt_public,
34 OPT_OFF(auth_instance, mail_auth_condition) },
35 { "server_set_id", opt_stringptr | opt_public,
36 OPT_OFF(auth_instance, set_id) }
39 int optionlist_auths_size = nelem(optionlist_auths);
41 /* An empty host aliases list. */
43 uschar *no_aliases = NULL;
46 /* For comments on these variables, see globals.h. I'm too idle to
47 duplicate them here... */
50 uschar *opt_perl_startup = NULL;
51 BOOL opt_perl_at_start = FALSE;
52 BOOL opt_perl_started = FALSE;
53 BOOL opt_perl_taintmode = FALSE;
57 tree_node *dlobj_anchor = NULL;
61 uschar *ibase_servers = NULL;
65 uschar *eldap_ca_cert_dir = NULL;
66 uschar *eldap_ca_cert_file = NULL;
67 uschar *eldap_cert_file = NULL;
68 uschar *eldap_cert_key = NULL;
69 uschar *eldap_cipher_suite = NULL;
70 uschar *eldap_default_servers = NULL;
71 uschar *eldap_require_cert = NULL;
72 int eldap_version = -1;
73 BOOL eldap_start_tls = FALSE;
77 uschar *mysql_servers = NULL;
81 uschar *oracle_servers = NULL;
85 uschar *pgsql_servers = NULL;
89 uschar *redis_servers = NULL;
93 uschar *sqlite_dbfile = NULL;
94 int sqlite_lock_timeout = 5;
97 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
98 BOOL move_frozen_messages = FALSE;
101 /* These variables are outside the #ifdef because it keeps the code less
102 cluttered in several places (e.g. during logging) if we can always refer to
103 them. Also, the tls_ variables are now always visible. Note that these are
104 only used for smtp connections, not for service-daemon access. */
106 tls_support tls_in = {
107 .active = {.sock = -1}
108 /* all other elements zero */
110 tls_support tls_out = {
111 .active = {.sock = -1},
112 /* all other elements zero */
115 uschar *dsn_envid = NULL;
117 const pcre2_code *regex_DSN = NULL;
118 uschar *dsn_advertise_hosts = NULL;
121 BOOL gnutls_compat_mode = FALSE;
122 BOOL gnutls_allow_auto_pkcs11 = FALSE;
123 uschar *hosts_require_alpn = NULL;
124 uschar *openssl_options = NULL;
125 const pcre2_code *regex_STARTTLS = NULL;
126 uschar *tls_advertise_hosts = US"*";
127 uschar *tls_alpn = US"smtp:esmtp";
128 uschar *tls_certificate = NULL;
129 uschar *tls_crl = NULL;
130 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
131 that's the interop problem which has been observed: GnuTLS suggesting a higher
132 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
133 int tls_dh_max_bits = 2236;
134 uschar *tls_dhparam = NULL;
135 uschar *tls_eccurve = US"auto";
136 # ifndef DISABLE_OCSP
137 uschar *tls_ocsp_file = NULL;
139 uschar *tls_privatekey = NULL;
140 BOOL tls_remember_esmtp = FALSE;
141 uschar *tls_require_ciphers = NULL;
142 # ifndef DISABLE_TLS_RESUME
143 uschar *tls_resumption_hosts = NULL;
145 uschar *tls_try_verify_hosts = NULL;
146 uschar *tls_verify_certificates= US"system";
147 uschar *tls_verify_hosts = NULL;
148 int tls_watch_fd = -1;
149 time_t tls_watch_trigger_time = (time_t)0;
150 #else /*DISABLE_TLS*/
151 uschar *tls_advertise_hosts = NULL;
155 /* Per Recipient Data Response variables */
156 BOOL prdr_enable = FALSE;
157 BOOL prdr_requested = FALSE;
158 const pcre2_code *regex_PRDR = NULL;
162 const pcre2_code *regex_UTF8 = NULL;
165 /* Input-reading functions for messages, so we can use special ones for
166 incoming TCP/IP. The defaults use stdin. We never need these for any
167 stand-alone tests. */
169 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
170 int (*lwr_receive_getc)(unsigned) = stdin_getc;
171 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
172 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
173 BOOL (*lwr_receive_hasc)(void) = stdin_hasc;
175 int (*receive_getc)(unsigned) = stdin_getc;
176 uschar * (*receive_getbuf)(unsigned *) = NULL;
177 void (*receive_get_cache)(unsigned) = NULL;
178 BOOL (*receive_hasc)(void) = stdin_hasc;
179 int (*receive_ungetc)(int) = stdin_ungetc;
180 int (*receive_feof)(void) = stdin_feof;
181 int (*receive_ferror)(void) = stdin_ferror;
185 /* List of per-address expansion variables for clearing and saving/restoring
186 when verifying one address while routing/verifying another. We have to have
187 the size explicit, because it is referenced from more than one module. */
189 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
190 CUSS &deliver_address_data,
191 CUSS &deliver_domain,
192 CUSS &deliver_domain_data,
193 CUSS &deliver_domain_orig,
194 CUSS &deliver_domain_parent,
195 CUSS &deliver_localpart,
196 CUSS &deliver_localpart_data,
197 CUSS &deliver_localpart_orig,
198 CUSS &deliver_localpart_parent,
199 CUSS &deliver_localpart_prefix,
200 CUSS &deliver_localpart_suffix,
201 CUSS (uschar **)(&deliver_recipients),
209 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
211 /******************************************************************************/
212 /* General global variables. Boolean flags are done as a group
213 so that only one bit each is needed, packed, for all those we never
214 need to take a pointer - and only a char for the rest.
215 This means a struct, unfortunately since it clutters the sourcecode. */
217 struct global_flags f =
219 .acl_temp_details = FALSE,
220 .active_local_from_check = FALSE,
221 .active_local_sender_retain = FALSE,
222 .address_test_mode = FALSE,
224 .allow_auth_unadvertised= FALSE,
225 .allow_unqualified_recipient = TRUE, /* For local messages */
226 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
227 .authentication_local = FALSE,
229 .background_daemon = TRUE,
230 .bdat_readers_wanted = FALSE,
232 .chunking_offered = FALSE,
233 .config_changed = FALSE,
234 .continue_more = FALSE,
236 .daemon_listen = FALSE,
237 .debug_daemon = FALSE,
238 .deliver_firsttime = FALSE,
239 .deliver_force = FALSE,
240 .deliver_freeze = FALSE,
241 .deliver_force_thaw = FALSE,
242 .deliver_manual_thaw = FALSE,
243 .deliver_selectstring_regex = FALSE,
244 .deliver_selectstring_sender_regex = FALSE,
245 .disable_callout_flush = FALSE,
246 .disable_delay_flush = FALSE,
247 .disable_logging = FALSE,
249 .dkim_disable_verify = FALSE,
250 .dkim_init_done = FALSE,
253 .dmarc_has_been_checked = FALSE,
254 .dmarc_disable_verify = FALSE,
255 .dmarc_enable_forensic = FALSE,
257 .dont_deliver = FALSE,
260 .enable_dollar_recipients = FALSE,
261 .expand_string_forcedfail = FALSE,
263 .filter_running = FALSE,
265 .header_rewritten = FALSE,
266 .helo_verified = FALSE,
267 .helo_verify_failed = FALSE,
268 .host_checking_callout = FALSE,
269 .host_find_failed_syntax= FALSE,
271 .inetd_wait_mode = FALSE,
274 .local_error_message = FALSE,
275 .log_testing_mode = FALSE,
277 #ifdef WITH_CONTENT_SCAN
278 .no_mbox_unspool = FALSE,
280 .no_multiline_responses = FALSE,
282 .parse_allow_group = FALSE,
283 .parse_found_group = FALSE,
284 .pipelining_enable = TRUE,
285 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
286 .proxy_session_failed = FALSE,
289 .queue_2stage = FALSE,
290 .queue_only_policy = FALSE,
291 .queue_run_first_delivery = FALSE,
292 .queue_run_force = FALSE,
293 .queue_run_local = FALSE,
294 .queue_running = FALSE,
298 .receive_call_bombout = FALSE,
299 .recipients_discarded = FALSE,
300 .running_in_test_harness = FALSE,
302 .search_find_defer = FALSE,
303 .sender_address_forced = FALSE,
304 .sender_host_notsocket = FALSE,
305 .sender_host_unknown = FALSE,
306 .sender_local = FALSE,
307 .sender_name_forced = FALSE,
308 .sender_set_untrusted = FALSE,
309 .smtp_authenticated = FALSE,
310 #ifndef DISABLE_PIPE_CONNECT
311 .smtp_in_early_pipe_advertised = FALSE,
312 .smtp_in_early_pipe_no_auth = FALSE,
313 .smtp_in_early_pipe_used = FALSE,
315 .smtp_in_pipelining_advertised = FALSE,
316 .smtp_in_pipelining_used = FALSE,
317 .smtp_in_quit = FALSE,
318 .spool_file_wireformat = FALSE,
319 .submission_mode = FALSE,
320 .suppress_local_fixups = FALSE,
321 .suppress_local_fixups_default = FALSE,
322 .synchronous_delivery = FALSE,
323 .system_filtering = FALSE,
325 .taint_check_slow = FALSE,
326 .testsuite_delays = TRUE,
327 .tcp_fastopen_ok = FALSE,
328 .tcp_in_fastopen = FALSE,
329 .tcp_in_fastopen_data = FALSE,
330 .tcp_in_fastopen_logged = FALSE,
331 .tcp_out_fastopen_logged= FALSE,
332 .timestamps_utc = FALSE,
333 .transport_filter_timed_out = FALSE,
334 .trusted_caller = FALSE,
335 .trusted_config = TRUE,
338 /******************************************************************************/
339 /* These are the flags which are either variables or mainsection options,
340 so an address is needed for access, or are exported to local_scan. */
342 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
343 BOOL allow_domain_literals = FALSE;
344 BOOL allow_mx_to_ip = FALSE;
345 BOOL allow_utf8_domains = FALSE;
346 BOOL authentication_failed = FALSE;
348 BOOL bounce_return_body = TRUE;
349 BOOL bounce_return_message = TRUE;
350 BOOL check_rfc2047_length = TRUE;
351 BOOL commandline_checks_require_admin = FALSE;
353 #ifdef EXPERIMENTAL_DCC
354 BOOL dcc_direct_add_header = FALSE;
356 BOOL debug_store = FALSE;
357 BOOL delivery_date_remove = TRUE;
358 BOOL deliver_drop_privilege = FALSE;
359 #ifdef ENABLE_DISABLE_FSYNC
360 BOOL disable_fsync = FALSE;
362 BOOL disable_ipv6 = FALSE;
363 BOOL dns_csa_use_reverse = TRUE;
364 BOOL drop_cr = FALSE; /* No longer used */
366 BOOL envelope_to_remove = TRUE;
367 BOOL exim_gid_set = TRUE; /* This gid is always set */
368 BOOL exim_uid_set = TRUE; /* This uid is always set */
369 BOOL extract_addresses_remove_arguments = TRUE;
371 BOOL host_checking = FALSE;
372 BOOL host_lookup_deferred = FALSE;
373 BOOL host_lookup_failed = FALSE;
374 BOOL ignore_fromline_local = FALSE;
376 BOOL local_from_check = TRUE;
377 BOOL local_sender_retain = FALSE;
378 BOOL log_timezone = FALSE;
379 BOOL message_body_newlines = FALSE;
380 BOOL message_logs = TRUE;
382 BOOL message_smtputf8 = FALSE;
384 BOOL mua_wrapper = FALSE;
386 BOOL preserve_message_logs = FALSE;
387 BOOL print_topbitchars = FALSE;
388 BOOL prod_requires_admin = TRUE;
389 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
390 BOOL proxy_session = FALSE;
393 #ifndef DISABLE_QUEUE_RAMP
394 BOOL queue_fast_ramp = FALSE;
396 BOOL queue_list_requires_admin = TRUE;
397 BOOL queue_only = FALSE;
398 BOOL queue_only_load_latch = TRUE;
399 BOOL queue_only_override = TRUE;
400 BOOL queue_run_in_order = FALSE;
401 BOOL recipients_max_reject = FALSE;
402 BOOL return_path_remove = TRUE;
404 BOOL smtp_batched_input = FALSE;
405 BOOL sender_helo_dnssec = FALSE;
406 BOOL sender_host_dnssec = FALSE;
407 BOOL smtp_accept_keepalive = TRUE;
408 BOOL smtp_check_spool_space = TRUE;
409 BOOL smtp_enforce_sync = TRUE;
410 BOOL smtp_etrn_serialize = TRUE;
411 BOOL smtp_input = FALSE;
412 BOOL smtp_return_error_details = FALSE;
414 BOOL spf_result_guessed = FALSE;
416 BOOL split_spool_directory = FALSE;
417 BOOL spool_wireformat = FALSE;
418 BOOL strict_acl_vars = FALSE;
419 BOOL strip_excess_angle_brackets = FALSE;
420 BOOL strip_trailing_dot = FALSE;
421 BOOL syslog_duplication = TRUE;
422 BOOL syslog_pid = TRUE;
423 BOOL syslog_timestamp = TRUE;
424 BOOL system_filter_gid_set = FALSE;
425 BOOL system_filter_uid_set = FALSE;
427 BOOL tcp_nodelay = TRUE;
428 BOOL write_rejectlog = TRUE;
430 /******************************************************************************/
432 header_line *acl_added_headers = NULL;
433 tree_node *acl_anchor = NULL;
434 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
435 NULL, NULL, NULL, NULL};
440 uschar *acl_not_smtp = NULL;
441 #ifdef WITH_CONTENT_SCAN
442 uschar *acl_not_smtp_mime = NULL;
444 uschar *acl_not_smtp_start = NULL;
445 uschar *acl_removed_headers = NULL;
446 uschar *acl_smtp_auth = NULL;
447 uschar *acl_smtp_connect = NULL;
448 uschar *acl_smtp_data = NULL;
450 uschar *acl_smtp_data_prdr = US"accept";
453 uschar *acl_smtp_dkim = NULL;
455 uschar *acl_smtp_etrn = NULL;
456 uschar *acl_smtp_expn = NULL;
457 uschar *acl_smtp_helo = NULL;
458 uschar *acl_smtp_mail = NULL;
459 uschar *acl_smtp_mailauth = NULL;
460 #ifdef WITH_CONTENT_SCAN
461 uschar *acl_smtp_mime = NULL;
463 uschar *acl_smtp_notquit = NULL;
464 uschar *acl_smtp_predata = NULL;
465 uschar *acl_smtp_quit = NULL;
466 uschar *acl_smtp_rcpt = NULL;
467 uschar *acl_smtp_starttls = NULL;
468 uschar *acl_smtp_vrfy = NULL;
470 tree_node *acl_var_c = NULL;
471 tree_node *acl_var_m = NULL;
472 uschar *acl_verify_message = NULL;
473 string_item *acl_warn_logged = NULL;
475 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
476 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
478 uschar *acl_wherenames[] = { US"RCPT",
503 uschar *acl_wherecodes[] = { US"550", /* RCPT */
505 US"550", /* PREDATA */
510 US"550", /* RCPT PRDR */
512 US"0", /* not SMTP; not relevant */
514 US"550", /* connect */
517 US"550", /* HELO/EHLO */
518 US"0", /* MAILAUTH; not relevant */
519 US"0", /* not SMTP; not relevant */
520 US"0", /* NOTQUIT; not relevant */
521 US"0", /* QUIT; not relevant */
522 US"550", /* STARTTLS */
524 US"0", /* delivery; not relevant */
525 US"0" /* unknown; not relevant */
528 uschar *add_environment = NULL;
529 address_item *addr_duplicate = NULL;
531 address_item address_defaults = {
536 .start_router = NULL,
541 .fallback_hosts = NULL,
546 .cc_local_part = NULL,
547 .lc_local_part = NULL,
554 .address_retry_key = NULL,
555 .domain_retry_key = NULL,
559 .user_message = NULL,
560 .onetime_parent = NULL,
561 .pipe_expandn = NULL,
562 .return_filename = NULL,
563 .self_hostname = NULL,
564 .shadow_message = NULL,
570 .ocsp = OCSP_NOT_REQ,
572 #ifdef EXPERIMENTAL_DSN_INFO
573 .smtp_greeting = NULL,
574 .helo_response = NULL,
576 .authenticator = NULL,
585 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
586 .localpart_cache = { 0 }, /* localpart_cache - ditto */
589 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
590 .basic_errno = ERRNO_UNKNOWNERROR,
593 .special_action = SPECIAL_NONE,
594 .transport_return = DEFER,
595 .prop = { /* fields that are propagated to children */
596 .address_data = NULL,
598 .localpart_data = NULL,
599 .errors_address = NULL,
600 .extra_headers = NULL,
601 .remove_headers = NULL,
603 .ignore_error = FALSE,
606 .utf8_downcvt = FALSE,
607 .utf8_downcvt_maybe = FALSE
612 uschar *address_file = NULL;
613 uschar *address_pipe = NULL;
614 tree_node *addresslist_anchor = NULL;
615 int addresslist_count = 0;
616 gid_t *admin_groups = NULL;
618 #ifdef EXPERIMENTAL_ARC
619 struct arc_set *arc_received = NULL;
620 int arc_received_instance = 0;
621 int arc_oldest_pass = 0;
622 const uschar *arc_state = NULL;
623 const uschar *arc_state_reason = NULL;
626 uschar *authenticated_fail_id = NULL;
627 uschar *authenticated_id = NULL;
628 uschar *authenticated_sender = NULL;
629 auth_instance *auths = NULL;
630 uschar *auth_advertise_hosts = US"*";
631 auth_instance auth_defaults = {
635 .options_block = NULL,
637 .advertise_condition = NULL,
638 .client_condition = NULL,
641 .set_client_id = NULL,
642 .mail_auth_condition = NULL,
643 .server_debug_string = NULL,
644 .server_condition = NULL,
650 uschar *auth_defer_msg = US"reason not recorded";
651 uschar *auth_defer_user_msg = US"";
652 const uschar *auth_vars[AUTH_VARS];
653 uschar *authenticator_name = NULL;
655 #ifdef WITH_CONTENT_SCAN
656 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
657 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
661 uschar *base62_chars=
662 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
664 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
667 uschar *bi_command = NULL;
668 uschar *big_buffer = NULL;
669 int big_buffer_size = BIG_BUFFER_SIZE;
670 #ifdef EXPERIMENTAL_BRIGHTMAIL
671 uschar *bmi_alt_location = NULL;
672 uschar *bmi_base64_tracker_verdict = NULL;
673 uschar *bmi_base64_verdict = NULL;
674 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
677 uschar *bmi_verdicts = NULL;
679 int bsmtp_transaction_linecount = 0;
680 int body_8bitmime = 0;
681 int body_linecount = 0;
682 int body_zerocount = 0;
683 uschar *bounce_message_file = NULL;
684 uschar *bounce_message_text = NULL;
685 uschar *bounce_recipient = NULL;
686 int bounce_return_linesize_limit = 998;
687 int bounce_return_size_limit = 100*1024;
688 uschar *bounce_sender_authentication = NULL;
690 uschar *callout_address = NULL;
691 int callout_cache_domain_positive_expire = 7*24*60*60;
692 int callout_cache_domain_negative_expire = 3*60*60;
693 int callout_cache_positive_expire = 24*60*60;
694 int callout_cache_negative_expire = 2*60*60;
695 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
696 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
697 int check_log_inodes = 100;
698 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
699 int check_spool_inodes = 100;
700 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
702 uschar *chunking_advertise_hosts = US"*";
703 unsigned chunking_datasize = 0;
704 unsigned chunking_data_left = 0;
705 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
706 const pcre2_code *regex_CHUNKING = NULL;
708 #ifdef EXPERIMENTAL_ESMTP_LIMITS
709 const pcre2_code *regex_LIMITS = NULL;
712 uschar *client_authenticator = NULL;
713 uschar *client_authenticated_id = NULL;
714 uschar *client_authenticated_sender = NULL;
715 #ifndef DISABLE_CLIENT_CMD_LOG
716 gstring *client_cmd_log = NULL;
718 int clmacro_count = 0;
719 uschar *clmacros[MAX_CLMACROS];
720 FILE *config_file = NULL;
721 const uschar *config_filename = NULL;
722 int config_lineno = 0;
723 #ifdef CONFIGURE_GROUP
724 gid_t config_gid = CONFIGURE_GROUP;
726 gid_t config_gid = 0;
728 uschar *config_main_filelist = US CONFIGURE_FILE
729 "\0<-----------Space to patch configure_filename->";
730 uschar *config_main_filename = NULL;
731 uschar *config_main_directory = NULL;
733 #ifdef CONFIGURE_OWNER
734 uid_t config_uid = CONFIGURE_OWNER;
736 uid_t config_uid = 0;
739 int connection_max_messages= -1;
740 uschar *continue_proxy_cipher = NULL;
741 BOOL continue_proxy_dane = FALSE;
742 uschar *continue_proxy_sni = NULL;
743 uschar *continue_hostname = NULL;
744 uschar *continue_host_address = NULL;
745 int continue_sequence = 1;
746 uschar *continue_transport = NULL;
747 #ifdef EXPERIMENTAL_ESMTP_LIMITS
748 unsigned continue_limit_mail = 0;
749 unsigned continue_limit_rcpt = 0;
750 unsigned continue_limit_rcptdom= 0;
753 uschar *csa_status = NULL;
755 .callout_hold_only = FALSE, /* verify-only: normal delivery */
756 .delivery = FALSE, /* when to attempt */
757 .defer_pass = FALSE, /* on defer: spool locally */
758 .is_tls = FALSE, /* not a TLS conn yet */
759 .cctx = {.sock = -1}, /* open connection */
760 .nrcpt = 0, /* number of addresses */
763 int daemon_notifier_fd = -1;
764 uschar *daemon_smtp_port = US"smtp";
765 int daemon_startup_retries = 9;
766 int daemon_startup_sleep = 30;
768 #ifdef EXPERIMENTAL_DCC
769 uschar *dcc_header = NULL;
770 uschar *dcc_result = NULL;
771 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
772 uschar *dccifd_options = US"header";
776 FILE *debug_file = NULL;
777 int debug_notall[] = {
782 bit_table debug_options[] = { /* must be in alphabetical order and use
783 only the enum values from macro.h */
787 BIT_TABLE(D, deliver),
791 BIT_TABLE(D, expand),
792 BIT_TABLE(D, filter),
793 BIT_TABLE(D, hints_lookup),
794 BIT_TABLE(D, host_lookup),
796 BIT_TABLE(D, interface),
799 BIT_TABLE(D, local_scan),
800 BIT_TABLE(D, lookup),
801 BIT_TABLE(D, memory),
802 BIT_TABLE(D, noutf8),
804 BIT_TABLE(D, process_info),
805 BIT_TABLE(D, queue_run),
806 BIT_TABLE(D, receive),
807 BIT_TABLE(D, resolver),
809 BIT_TABLE(D, rewrite),
811 BIT_TABLE(D, timestamp),
813 BIT_TABLE(D, transport),
815 BIT_TABLE(D, verify),
817 int debug_options_count = nelem(debug_options);
818 unsigned debug_pretrigger_bsize= 0;
819 uschar * debug_pretrigger_buf = NULL;
820 unsigned int debug_selector = 0;
822 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
823 uschar *delay_warning_condition=
825 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
826 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
827 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
829 uschar *deliver_address_data = NULL;
830 int deliver_datafile = -1;
831 const uschar *deliver_domain = NULL;
832 uschar *deliver_domain_data = NULL;
833 const uschar *deliver_domain_orig = NULL;
834 const uschar *deliver_domain_parent = NULL;
835 time_t deliver_frozen_at = 0;
836 uschar *deliver_home = NULL;
837 const uschar *deliver_host = NULL;
838 const uschar *deliver_host_address = NULL;
839 int deliver_host_port = 0;
840 uschar *deliver_in_buffer = NULL;
841 ino_t deliver_inode = 0;
842 uschar *deliver_localpart = NULL;
843 uschar *deliver_localpart_data = NULL;
844 uschar *deliver_localpart_orig = NULL;
845 uschar *deliver_localpart_parent = NULL;
846 uschar *deliver_localpart_prefix = NULL;
847 uschar *deliver_localpart_prefix_v = NULL;
848 uschar *deliver_localpart_suffix = NULL;
849 uschar *deliver_localpart_suffix_v = NULL;
850 uschar *deliver_out_buffer = NULL;
851 int deliver_queue_load_max = -1;
852 address_item *deliver_recipients = NULL;
853 uschar *deliver_selectstring = NULL;
854 uschar *deliver_selectstring_sender = NULL;
857 unsigned dkim_collect_input = 0;
858 uschar *dkim_cur_signer = NULL;
859 int dkim_key_length = 0;
860 void *dkim_signatures = NULL;
861 uschar *dkim_signers = NULL;
862 uschar *dkim_signing_domain = NULL;
863 uschar *dkim_signing_selector = NULL;
864 uschar *dkim_verify_hashes = US"sha256:sha512";
865 uschar *dkim_verify_keytypes = US"ed25519:rsa";
866 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
867 BOOL dkim_verify_minimal = FALSE;
868 uschar *dkim_verify_overall = NULL;
869 uschar *dkim_verify_signers = US"$dkim_signers";
870 uschar *dkim_verify_status = NULL;
871 uschar *dkim_verify_reason = NULL;
874 uschar *dmarc_domain_policy = NULL;
875 uschar *dmarc_forensic_sender = NULL;
876 uschar *dmarc_history_file = NULL;
877 uschar *dmarc_status = NULL;
878 uschar *dmarc_status_text = NULL;
879 uschar *dmarc_tld_file = NULL;
880 uschar *dmarc_used_domain = NULL;
883 uschar *dns_again_means_nonexist = NULL;
884 int dns_csa_search_limit = 5;
885 int dns_cname_loops = 1;
887 int dns_dane_ok = -1;
889 uschar *dns_ipv4_lookup = NULL;
892 int dns_dnssec_ok = -1; /* <0 = not coerced */
893 uschar *dns_trust_aa = NULL;
894 int dns_use_edns0 = -1; /* <0 = not coerced */
895 uschar *dnslist_domain = NULL;
896 uschar *dnslist_matched = NULL;
897 uschar *dnslist_text = NULL;
898 uschar *dnslist_value = NULL;
899 tree_node *domainlist_anchor = NULL;
900 int domainlist_count = 0;
901 const uschar *driver_srcfile = NULL;
902 int driver_srcline = 0;
903 uschar *dsn_from = US DEFAULT_DSN_FROM;
904 unsigned int dtrigger_selector = 0;
906 int errno_quota = ERRNO_QUOTA;
907 uschar *errors_copy = NULL;
908 int error_handling = ERRORS_SENDER;
909 uschar *errors_reply_to = NULL;
910 int errors_sender_rc = EXIT_FAILURE;
911 #ifndef DISABLE_EVENT
912 uschar *event_action = NULL; /* expansion for delivery events */
913 uschar *event_data = NULL; /* auxiliary data variable for event */
914 int event_defer_errno = 0;
915 const uschar *event_name = NULL; /* event name variable */
919 gid_t exim_gid = EXIM_GID;
920 uschar *exim_path = US BIN_DIRECTORY "/exim"
921 "\0<---------------Space to patch exim_path->";
922 uid_t exim_uid = EXIM_UID;
923 int expand_level = 0; /* Nesting depth, indent for debug */
924 int expand_forbid = 0;
925 int expand_nlength[EXPAND_MAXN+1];
926 int expand_nmax = -1;
927 const uschar *expand_nstring[EXPAND_MAXN+1];
928 uschar *expand_string_message;
929 uschar *extra_local_interfaces = NULL;
931 int fake_response = OK;
932 uschar *fake_response_text = US"Your message has been rejected but is "
933 "being kept for evaluation.\nIf it was a "
934 "legitimate message, it may still be "
935 "delivered to the target recipient(s).";
936 int filter_n[FILTER_VARIABLE_COUNT];
937 int filter_sn[FILTER_VARIABLE_COUNT];
938 int filter_test = FTEST_NONE;
939 uschar *filter_test_sfile = NULL;
940 uschar *filter_test_ufile = NULL;
941 uschar *filter_thisaddress = NULL;
942 int finduser_retries = 0;
943 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
944 uschar *freeze_tell = NULL;
945 uschar *freeze_tell_config = NULL;
946 uschar *fudged_queue_times = US"";
948 uschar *gecos_name = NULL;
949 uschar *gecos_pattern = NULL;
950 rewrite_rule *global_rewrite_rules = NULL;
952 volatile sig_atomic_t had_command_timeout = 0;
953 volatile sig_atomic_t had_command_sigterm = 0;
954 volatile sig_atomic_t had_data_timeout = 0;
955 volatile sig_atomic_t had_data_sigint = 0;
956 const uschar *headers_charset = US HEADERS_CHARSET;
957 int header_insert_maxlen = 64 * 1024;
958 header_line *header_last = NULL;
959 header_line *header_list = NULL;
960 int header_maxsize = HEADER_MAXSIZE;
961 int header_line_maxsize = 0;
963 header_name header_names[] = {
964 /* name len allow_resent htype */
965 { US"bcc", 3, TRUE, htype_bcc },
966 { US"cc", 2, TRUE, htype_cc },
967 { US"date", 4, TRUE, htype_date },
968 { US"delivery-date", 13, FALSE, htype_delivery_date },
969 { US"envelope-to", 11, FALSE, htype_envelope_to },
970 { US"from", 4, TRUE, htype_from },
971 { US"message-id", 10, TRUE, htype_id },
972 { US"received", 8, FALSE, htype_received },
973 { US"reply-to", 8, FALSE, htype_reply_to },
974 { US"return-path", 11, FALSE, htype_return_path },
975 { US"sender", 6, TRUE, htype_sender },
976 { US"subject", 7, FALSE, htype_subject },
977 { US"to", 2, TRUE, htype_to }
980 int header_names_size = nelem(header_names);
982 uschar *helo_accept_junk_hosts = NULL;
983 uschar *helo_allow_chars = US"";
984 uschar *helo_lookup_domains = US"@ : @[]";
985 uschar *helo_try_verify_hosts = NULL;
986 uschar *helo_verify_hosts = NULL;
987 const uschar *hex_digits = CUS"0123456789abcdef";
988 uschar *hold_domains = NULL;
989 uschar *host_data = NULL;
990 uschar *host_lookup = NULL;
991 uschar *host_lookup_order = US"bydns:byaddr";
992 uschar *host_lookup_msg = US"";
994 uschar *host_number_string = NULL;
995 uschar *host_reject_connection = NULL;
996 tree_node *hostlist_anchor = NULL;
997 int hostlist_count = 0;
998 uschar *hosts_treat_as_local = NULL;
999 uschar *hosts_require_helo = US"*";
1000 uschar *hosts_connection_nolog = NULL;
1002 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
1003 uschar *ignore_fromline_hosts = NULL;
1004 int inetd_wait_timeout = -1;
1005 uschar *initial_cwd = NULL;
1006 uschar *interface_address = NULL;
1007 int interface_port = -1;
1008 uschar *iterate_item = NULL;
1010 int journal_fd = -1;
1012 uschar *keep_environment = NULL;
1014 int keep_malformed = 4*24*60*60; /* 4 days */
1016 uschar *eldap_dn = NULL;
1017 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1018 uschar *limits_advertise_hosts = US"*";
1020 int load_average = -2;
1021 uschar *local_from_prefix = NULL;
1022 uschar *local_from_suffix = NULL;
1025 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1027 uschar *local_interfaces = US"0.0.0.0";
1030 #ifdef HAVE_LOCAL_SCAN
1031 uschar *local_scan_data = NULL;
1032 int local_scan_timeout = 5*60;
1034 gid_t local_user_gid = (gid_t)(-1);
1035 uid_t local_user_uid = (uid_t)(-1);
1037 tree_node *localpartlist_anchor= NULL;
1038 int localpartlist_count = 0;
1039 uschar *log_buffer = NULL;
1041 int log_default[] = { /* for initializing log_selector */
1042 Li_acl_warn_skipped,
1043 Li_connection_reject,
1048 Li_host_lookup_failed,
1049 Li_lost_incoming_connection,
1050 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1053 Li_queue_time_exclusive,
1056 Li_sender_verify_fail,
1059 Li_smtp_confirmation,
1060 Li_tls_certificate_verified,
1065 uschar *log_file_path = US LOG_FILE_PATH
1066 "\0<--------------Space to patch log_file_path->";
1068 int log_notall[] = {
1071 bit_table log_options[] = { /* must be in alphabetical order,
1072 with definitions from enum logbit. */
1073 BIT_TABLE(L, 8bitmime),
1074 BIT_TABLE(L, acl_warn_skipped),
1075 BIT_TABLE(L, address_rewrite),
1077 BIT_TABLE(L, all_parents),
1078 BIT_TABLE(L, arguments),
1079 BIT_TABLE(L, connection_reject),
1080 BIT_TABLE(L, delay_delivery),
1081 BIT_TABLE(L, deliver_time),
1082 BIT_TABLE(L, delivery_size),
1083 #ifndef DISABLE_DKIM
1085 BIT_TABLE(L, dkim_verbose),
1087 BIT_TABLE(L, dnslist_defer),
1088 BIT_TABLE(L, dnssec),
1090 BIT_TABLE(L, host_lookup_failed),
1091 BIT_TABLE(L, ident_timeout),
1092 BIT_TABLE(L, incoming_interface),
1093 BIT_TABLE(L, incoming_port),
1094 BIT_TABLE(L, lost_incoming_connection),
1095 BIT_TABLE(L, millisec),
1096 BIT_TABLE(L, msg_id),
1097 BIT_TABLE(L, msg_id_created),
1098 BIT_TABLE(L, outgoing_interface),
1099 BIT_TABLE(L, outgoing_port),
1101 BIT_TABLE(L, pipelining),
1102 BIT_TABLE(L, protocol_detail),
1103 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1104 BIT_TABLE(L, proxy),
1106 BIT_TABLE(L, queue_run),
1107 BIT_TABLE(L, queue_time),
1108 BIT_TABLE(L, queue_time_exclusive),
1109 BIT_TABLE(L, queue_time_overall),
1110 BIT_TABLE(L, receive_time),
1111 BIT_TABLE(L, received_recipients),
1112 BIT_TABLE(L, received_sender),
1113 BIT_TABLE(L, rejected_header),
1114 { US"rejected_headers", Li_rejected_header },
1115 BIT_TABLE(L, retry_defer),
1116 BIT_TABLE(L, return_path_on_delivery),
1117 BIT_TABLE(L, sender_on_delivery),
1118 BIT_TABLE(L, sender_verify_fail),
1119 BIT_TABLE(L, size_reject),
1120 BIT_TABLE(L, skip_delivery),
1121 BIT_TABLE(L, smtp_confirmation),
1122 BIT_TABLE(L, smtp_connection),
1123 BIT_TABLE(L, smtp_incomplete_transaction),
1124 BIT_TABLE(L, smtp_mailauth),
1125 BIT_TABLE(L, smtp_no_mail),
1126 BIT_TABLE(L, smtp_protocol_error),
1127 BIT_TABLE(L, smtp_syntax_error),
1128 BIT_TABLE(L, subject),
1129 BIT_TABLE(L, tls_certificate_verified),
1130 BIT_TABLE(L, tls_cipher),
1131 BIT_TABLE(L, tls_peerdn),
1132 BIT_TABLE(L, tls_resumption),
1133 BIT_TABLE(L, tls_sni),
1134 BIT_TABLE(L, unknown_in_list),
1136 int log_options_count = nelem(log_options);
1138 int log_reject_target = 0;
1139 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1140 uschar *log_selector_string = NULL;
1141 FILE *log_stderr = NULL;
1142 uschar *login_sender_address = NULL;
1143 uschar *lookup_dnssec_authenticated = NULL;
1144 int lookup_open_max = 25;
1145 uschar *lookup_value = NULL;
1147 macro_item *macros_user = NULL;
1148 uschar *mailstore_basename = NULL;
1149 #ifdef WITH_CONTENT_SCAN
1150 uschar *malware_name = NULL; /* Virus Name */
1152 int max_received_linelength= 0;
1153 int max_username_length = 0;
1154 int message_age = 0;
1155 uschar *message_body = NULL;
1156 uschar *message_body_end = NULL;
1157 int message_body_size = 0;
1158 int message_body_visible = 500;
1159 int message_ended = END_NOTSTARTED;
1160 uschar *message_headers = NULL;
1162 uschar *message_id_domain = NULL;
1163 uschar *message_id_text = NULL;
1164 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1165 uschar *message_id_external;
1166 int message_linecount = 0;
1167 int message_size = 0;
1168 uschar *message_size_limit = US"50M";
1170 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1172 uschar message_subdir[2] = { 0, 0 };
1173 uschar *message_reference = NULL;
1175 /* MIME ACL expandables */
1176 #ifdef WITH_CONTENT_SCAN
1177 int mime_anomaly_level = 0;
1178 const uschar *mime_anomaly_text = NULL;
1179 uschar *mime_boundary = NULL;
1180 uschar *mime_charset = NULL;
1181 uschar *mime_content_description = NULL;
1182 uschar *mime_content_disposition = NULL;
1183 uschar *mime_content_id = NULL;
1184 unsigned int mime_content_size = 0;
1185 uschar *mime_content_transfer_encoding = NULL;
1186 uschar *mime_content_type = NULL;
1187 uschar *mime_decoded_filename = NULL;
1188 uschar *mime_filename = NULL;
1189 int mime_is_multipart = 0;
1190 int mime_is_coverletter = 0;
1191 int mime_is_rfc822 = 0;
1192 int mime_part_count = -1;
1195 uid_t *never_users = NULL;
1196 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1198 const int on = 1; /* for setsockopt */
1201 uid_t original_euid;
1202 gid_t originator_gid;
1203 uschar *originator_login = NULL;
1204 uschar *originator_name = NULL;
1205 uid_t originator_uid;
1206 uschar *override_local_interfaces = NULL;
1207 uschar *override_pid_file_path = NULL;
1209 pcre2_general_context * pcre_gen_ctx = NULL;
1210 pcre2_compile_context * pcre_cmp_ctx = NULL;
1211 pcre2_match_context * pcre_mtc_ctx = NULL;
1213 uschar *percent_hack_domains = NULL;
1214 uschar *pid_file_path = US PID_FILE_PATH
1215 "\0<--------------Space to patch pid_file_path->";
1216 #ifndef DISABLE_PIPE_CONNECT
1217 uschar *pipe_connect_advertise_hosts = US"*";
1219 uschar *pipelining_advertise_hosts = US"*";
1220 uschar *primary_hostname = NULL;
1221 uschar *process_info;
1222 int process_info_len = 0;
1223 uschar *process_log_path = NULL;
1224 const uschar *process_purpose = US"fresh-exec";
1226 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1227 uschar *hosts_proxy = NULL;
1228 uschar *proxy_external_address = NULL;
1229 int proxy_external_port = 0;
1230 uschar *proxy_local_address = NULL;
1231 int proxy_local_port = 0;
1232 int proxy_protocol_timeout = 3;
1235 uschar *prvscheck_address = NULL;
1236 uschar *prvscheck_keynum = NULL;
1237 uschar *prvscheck_result = NULL;
1240 const uschar *qualify_domain_recipient = NULL;
1241 uschar *qualify_domain_sender = NULL;
1242 uschar *queue_domains = NULL;
1243 int queue_interval = -1;
1244 uschar *queue_name = US"";
1245 uschar *queue_name_dest = NULL;
1246 uschar *queue_only_file = NULL;
1247 int queue_only_load = -1;
1248 uschar *queue_run_max = US"5";
1249 pid_t queue_run_pid = (pid_t)0;
1250 int queue_run_pipe = -1;
1251 unsigned queue_size = 0;
1252 time_t queue_size_next = 0;
1253 uschar *queue_smtp_domains = NULL;
1255 uint32_t random_seed = 0;
1256 tree_node *ratelimiters_cmd = NULL;
1257 tree_node *ratelimiters_conn = NULL;
1258 tree_node *ratelimiters_mail = NULL;
1259 uschar *raw_active_hostname = NULL;
1260 uschar *raw_sender = NULL;
1261 uschar **raw_recipients = NULL;
1262 int raw_recipients_count = 0;
1265 int rcpt_fail_count = 0;
1266 int rcpt_defer_count = 0;
1269 int receive_linecount = 0;
1270 int receive_messagecount = 0;
1271 int receive_timeout = 0;
1272 int received_count = 0;
1273 uschar *received_for = NULL;
1275 /* This is the default text for Received headers generated by Exim. The
1276 date will be automatically added on the end. */
1278 uschar *received_header_text = US
1280 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1281 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1282 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1283 "by $primary_hostname "
1284 "${if def:received_protocol {with $received_protocol }}"
1286 "${if def:tls_in_ver { ($tls_in_ver)}}"
1287 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1289 "(Exim $version_number)\n\t"
1290 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1291 "id $message_exim_id"
1292 "${if def:received_for {\n\tfor $received_for}}"
1293 "\0<---------------Space to patch received_header_text->";
1295 int received_headers_max = 30;
1296 uschar *received_protocol = NULL;
1297 struct timeval received_time = { 0, 0 };
1298 struct timeval received_time_complete = { 0, 0 };
1299 uschar *recipient_data = NULL;
1300 uschar *recipient_unqualified_hosts = NULL;
1301 uschar *recipient_verify_failure = NULL;
1302 int recipients_count = 0;
1303 recipient_item *recipients_list = NULL;
1304 int recipients_list_max = 0;
1305 int recipients_max = 50000;
1306 const pcre2_code *regex_AUTH = NULL;
1307 const pcre2_code *regex_check_dns_names = NULL;
1308 const pcre2_code *regex_From = NULL;
1309 const pcre2_code *regex_IGNOREQUOTA = NULL;
1310 const pcre2_code *regex_PIPELINING = NULL;
1311 const pcre2_code *regex_SIZE = NULL;
1312 #ifndef DISABLE_PIPE_CONNECT
1313 const pcre2_code *regex_EARLY_PIPE = NULL;
1315 const pcre2_code *regex_ismsgid = NULL;
1316 const pcre2_code *regex_smtp_code = NULL;
1317 const uschar *regex_vars[REGEX_VARS];
1318 #ifdef WHITELIST_D_MACROS
1319 const pcre2_code *regex_whitelisted_macro = NULL;
1321 #ifdef WITH_CONTENT_SCAN
1322 uschar *regex_match_string = NULL;
1324 int remote_delivery_count = 0;
1325 int remote_max_parallel = 2;
1326 uschar *remote_sort_domains = NULL;
1327 int retry_data_expire = 7*24*60*60;
1328 int retry_interval_max = 24*60*60;
1329 int retry_maximum_timeout = 0; /* set from retry config */
1330 retry_config *retries = NULL;
1331 uschar *return_path = NULL;
1332 int rewrite_existflags = 0;
1333 uschar *rfc1413_hosts = US"@[]";
1334 int rfc1413_query_timeout = 0;
1335 uid_t root_gid = ROOT_GID;
1336 uid_t root_uid = ROOT_UID;
1338 router_instance *routers = NULL;
1339 router_instance router_defaults = {
1343 .options_block = NULL,
1344 .driver_name = NULL,
1346 .address_data = NULL,
1347 #ifdef EXPERIMENTAL_BRIGHTMAIL
1350 .cannot_route_message = NULL,
1352 .current_directory = NULL,
1353 .debug_string = NULL,
1358 .expand_more = NULL,
1359 .expand_unseen = NULL,
1360 .extra_headers = NULL,
1361 .fallback_hosts = NULL,
1362 .home_directory = NULL,
1363 .ignore_target_hosts = NULL,
1364 .local_parts = NULL,
1365 .pass_router_name = NULL,
1367 .redirect_router_name = NULL,
1368 .remove_headers = NULL,
1369 .require_files = NULL,
1370 .router_home_directory = NULL,
1374 .translate_ip_address = NULL,
1375 .transport_name = NULL,
1377 .address_test = TRUE,
1378 #ifdef EXPERIMENTAL_BRIGHTMAIL
1379 .bmi_deliver_alternate = FALSE,
1380 .bmi_deliver_default = FALSE,
1381 .bmi_dont_deliver = FALSE,
1384 .caseful_local_part = FALSE,
1385 .check_local_user = FALSE,
1386 .disable_logging = FALSE,
1387 .fail_verify_recipient = FALSE,
1388 .fail_verify_sender = FALSE,
1390 .initgroups = FALSE,
1391 .log_as_local = TRUE_UNSET,
1393 .pass_on_timeout = FALSE,
1394 .prefix_optional = FALSE,
1396 .retry_use_local_part = TRUE_UNSET,
1397 .same_domain_copy_routing = FALSE,
1398 .self_rewrite = FALSE,
1400 .suffix_optional = FALSE,
1401 .verify_only = FALSE,
1402 .verify_recipient = TRUE,
1403 .verify_sender = TRUE,
1406 .dsn_lasthop = FALSE,
1408 .self_code = self_freeze,
1412 .fallback_hostlist = NULL,
1414 .pass_router = NULL,
1415 .redirect_router = NULL,
1417 .dnssec = { .request= US"*", .require=NULL },
1420 uschar *router_name = NULL;
1421 tree_node *router_var = NULL;
1423 ip_address_item *running_interfaces = NULL;
1425 /* This is a weird one. The following string gets patched in the binary by the
1426 script that sets up a copy of Exim for running in the test harness. It seems
1427 that compilers are now clever, and share constant strings if they can.
1428 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1429 make use of the end of this string in order to save space. So the patching then
1430 wrecks this. We defeat this optimization by adding some additional characters
1431 onto the end of the string. */
1433 uschar *running_status = US">>>running<<<" "\0EXTRA";
1437 uschar *search_error_message = NULL;
1438 uschar *self_hostname = NULL;
1439 uschar *sender_address = NULL;
1440 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1441 uschar *sender_address_data = NULL;
1442 uschar *sender_address_unrewritten = NULL;
1443 uschar *sender_data = NULL;
1444 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1445 uschar *sender_fullhost = NULL;
1446 uschar *sender_helo_name = NULL;
1447 uschar **sender_host_aliases = &no_aliases;
1448 uschar *sender_host_address = NULL;
1449 uschar *sender_host_authenticated = NULL;
1450 uschar *sender_host_auth_pubname = NULL;
1451 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1452 uschar *sender_host_name = NULL;
1453 int sender_host_port = 0;
1454 uschar *sender_ident = NULL;
1455 uschar *sender_rate = NULL;
1456 uschar *sender_rate_limit = NULL;
1457 uschar *sender_rate_period = NULL;
1458 uschar *sender_rcvhost = NULL;
1459 uschar *sender_unqualified_hosts = NULL;
1460 uschar *sender_verify_failure = NULL;
1461 address_item *sender_verified_list = NULL;
1462 address_item *sender_verified_failed = NULL;
1463 int sender_verified_rc = -1;
1464 uschar *sending_ip_address = NULL;
1465 int sending_port = -1;
1466 SIGNAL_BOOL sigalrm_seen = FALSE;
1467 const uschar *sigalarm_setter = NULL;
1468 uschar **sighup_argv = NULL;
1469 int slow_lookup_log = 0; /* millisecs, zero disables */
1470 int smtp_accept_count = 0;
1471 int smtp_accept_max = 20;
1472 int smtp_accept_max_nonmail= 10;
1473 uschar *smtp_accept_max_nonmail_hosts = US"*";
1474 uschar *smtp_accept_max_per_connection = US"1000";
1475 uschar *smtp_accept_max_per_host = NULL;
1476 int smtp_accept_queue = 0;
1477 int smtp_accept_queue_per_connection = 10;
1478 int smtp_accept_reserve = 0;
1479 uschar *smtp_active_hostname = NULL;
1480 int smtp_backlog_monitor = 0;
1481 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1482 "Exim $version_number $tod_full"
1483 "\0<---------------Space to patch smtp_banner->";
1484 int smtp_ch_index = 0;
1485 uschar *smtp_cmd_argument = NULL;
1486 uschar *smtp_cmd_buffer = NULL;
1487 struct timeval smtp_connection_start = {0,0};
1488 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1489 int smtp_connect_backlog = 20;
1490 double smtp_delay_mail = 0.0;
1491 double smtp_delay_rcpt = 0.0;
1492 FILE *smtp_in = NULL;
1493 int smtp_listen_backlog = 0;
1494 int smtp_load_reserve = -1;
1495 int smtp_mailcmd_count = 0;
1496 int smtp_mailcmd_max = -1;
1497 FILE *smtp_out = NULL;
1498 uschar *smtp_etrn_command = NULL;
1499 int smtp_max_synprot_errors= 3;
1500 int smtp_max_unknown_commands = 3;
1501 uschar *smtp_notquit_reason = NULL;
1502 unsigned smtp_peer_options = 0;
1503 unsigned smtp_peer_options_wrap= 0;
1504 uschar *smtp_ratelimit_hosts = NULL;
1505 uschar *smtp_ratelimit_mail = NULL;
1506 uschar *smtp_ratelimit_rcpt = NULL;
1507 uschar *smtp_read_error = US"";
1508 int smtp_receive_timeout = 5*60;
1509 uschar *smtp_receive_timeout_s = NULL;
1510 uschar *smtp_reserve_hosts = NULL;
1511 int smtp_rlm_base = 0;
1512 double smtp_rlm_factor = 0.0;
1513 int smtp_rlm_limit = 0;
1514 int smtp_rlm_threshold = INT_MAX;
1515 int smtp_rlr_base = 0;
1516 double smtp_rlr_factor = 0.0;
1517 int smtp_rlr_limit = 0;
1518 int smtp_rlr_threshold = INT_MAX;
1520 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1523 #ifdef WITH_CONTENT_SCAN
1524 uschar *spamd_address = US"127.0.0.1 783";
1525 uschar *spam_bar = NULL;
1526 uschar *spam_report = NULL;
1527 uschar *spam_action = NULL;
1528 uschar *spam_score = NULL;
1529 uschar *spam_score_int = NULL;
1532 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1533 uschar *spf_header_comment = NULL;
1534 uschar *spf_received = NULL;
1535 uschar *spf_result = NULL;
1536 uschar *spf_smtp_comment = NULL;
1537 uschar *spf_smtp_comment_template
1538 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1539 = US"Please%_see%_http://www.open-spf.org/Why";
1543 FILE *spool_data_file = NULL;
1544 uschar *spool_directory = US SPOOL_DIRECTORY
1545 "\0<--------------Space to patch spool_directory->";
1547 uschar *srs_recipient = NULL;
1549 int string_datestamp_offset= -1;
1550 int string_datestamp_length= 0;
1551 int string_datestamp_type = -1;
1552 const uschar *submission_domain = NULL;
1553 const uschar *submission_name = NULL;
1554 int syslog_facility = LOG_MAIL;
1555 uschar *syslog_processname = US"exim";
1556 uschar *system_filter = NULL;
1558 uschar *system_filter_directory_transport = NULL;
1559 uschar *system_filter_file_transport = NULL;
1560 uschar *system_filter_pipe_transport = NULL;
1561 uschar *system_filter_reply_transport = NULL;
1563 gid_t system_filter_gid = 0;
1564 uid_t system_filter_uid = (uid_t)-1;
1566 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1567 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1568 #ifdef USE_TCP_WRAPPERS
1569 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1571 int test_harness_load_avg = 0;
1572 int thismessage_size_limit = 0;
1573 int timeout_frozen_after = 0;
1574 #ifdef MEASURE_TIMING
1575 struct timeval timestamp_startup;
1578 transport_instance *transports = NULL;
1580 transport_instance transport_defaults = {
1581 /* All non-mentioned elements zero/NULL/FALSE */
1583 .multi_domain = TRUE,
1584 .max_addresses = 100,
1585 .connection_max_messages = 500,
1588 .filter_timeout = 300,
1589 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1590 1 nor 0 so can detect unset */
1593 int transport_count;
1594 uschar *transport_name = NULL;
1595 int transport_newlines;
1596 const uschar **transport_filter_argv = NULL;
1597 int transport_filter_timeout;
1598 int transport_write_timeout= 0;
1600 tree_node *tree_dns_fails = NULL;
1601 tree_node *tree_duplicates = NULL;
1602 tree_node *tree_nonrecipients = NULL;
1603 tree_node *tree_unusable = NULL;
1605 gid_t *trusted_groups = NULL;
1606 uid_t *trusted_users = NULL;
1607 uschar *timezone_string = US TIMEZONE_DEFAULT;
1609 uschar *unknown_login = NULL;
1610 uschar *unknown_username = NULL;
1611 uschar *untrusted_set_sender = NULL;
1613 /* A regex for matching a "From_" line in an incoming message, in the form
1615 From ph10 Fri Jan 5 12:35 GMT 1996
1617 which the "mail" commands send to the MTA (undocumented, of course), or in
1620 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1622 which is apparently used by some UUCPs, despite it not being in RFC 976.
1623 Because of variations in time formats, just match up to the minutes. That
1624 should be sufficient. Examples have been seen of time fields like 12:1:03,
1625 so just require one digit for hours and minutes. The weekday is also absent
1628 uschar *uucp_from_pattern = US
1629 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1630 "(?:" /* Non-extracting bracket */
1631 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1632 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1633 ")" /* End alternation */
1634 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1636 uschar *uucp_from_sender = US"$1";
1638 uschar *verify_mode = NULL;
1639 uschar *version_copyright =
1640 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1641 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020";
1642 uschar *version_date = US"?";
1643 uschar *version_cnumber = US"????";
1644 uschar *version_string = US"?";
1646 uschar *warn_message_file = NULL;
1647 int warning_count = 0;
1648 uschar *warnmsg_delay = NULL;
1649 uschar *warnmsg_recipients = NULL;
1652 /* End of globals.c */