1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* Copyright (c) The Exim Maintainers 2020 */
7 /* See the file NOTICE for conditions of use and distribution. */
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 #ifdef ALLOW_INSECURE_TAINTED_DATA
102 BOOL allow_insecure_tainted_data = FALSE;
105 /* These variables are outside the #ifdef because it keeps the code less
106 cluttered in several places (e.g. during logging) if we can always refer to
107 them. Also, the tls_ variables are now always visible. Note that these are
108 only used for smtp connections, not for service-daemon access. */
110 tls_support tls_in = {
111 .active = {.sock = -1}
112 /* all other elements zero */
114 tls_support tls_out = {
115 .active = {.sock = -1},
116 /* all other elements zero */
119 uschar *dsn_envid = NULL;
121 const pcre *regex_DSN = NULL;
122 uschar *dsn_advertise_hosts = NULL;
125 BOOL gnutls_compat_mode = FALSE;
126 BOOL gnutls_allow_auto_pkcs11 = FALSE;
127 uschar *openssl_options = NULL;
128 const pcre *regex_STARTTLS = NULL;
129 uschar *tls_advertise_hosts = US"*";
130 uschar *tls_certificate = NULL;
131 uschar *tls_crl = NULL;
132 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
133 that's the interop problem which has been observed: GnuTLS suggesting a higher
134 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
135 int tls_dh_max_bits = 2236;
136 uschar *tls_dhparam = NULL;
137 uschar *tls_eccurve = US"auto";
138 # ifndef DISABLE_OCSP
139 uschar *tls_ocsp_file = NULL;
141 uschar *tls_privatekey = NULL;
142 BOOL tls_remember_esmtp = FALSE;
143 uschar *tls_require_ciphers = NULL;
144 # ifndef DISABLE_TLS_RESUME
145 uschar *tls_resumption_hosts = NULL;
147 uschar *tls_try_verify_hosts = NULL;
148 #if defined(SUPPORT_SYSDEFAULT_CABUNDLE) || !defined(USE_GNUTLS)
149 uschar *tls_verify_certificates= US"system";
151 uschar *tls_verify_certificates= NULL;
153 uschar *tls_verify_hosts = NULL;
154 int tls_watch_fd = -1;
155 time_t tls_watch_trigger_time = (time_t)0;
156 #else /*DISABLE_TLS*/
157 uschar *tls_advertise_hosts = NULL;
161 /* Per Recipient Data Response variables */
162 BOOL prdr_enable = FALSE;
163 BOOL prdr_requested = FALSE;
164 const pcre *regex_PRDR = NULL;
168 const pcre *regex_UTF8 = NULL;
171 /* Input-reading functions for messages, so we can use special ones for
172 incoming TCP/IP. The defaults use stdin. We never need these for any
173 stand-alone tests. */
175 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
176 int (*lwr_receive_getc)(unsigned) = stdin_getc;
177 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
178 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
179 int (*receive_getc)(unsigned) = stdin_getc;
180 uschar * (*receive_getbuf)(unsigned *) = NULL;
181 void (*receive_get_cache)(void)= NULL;
182 int (*receive_ungetc)(int) = stdin_ungetc;
183 int (*receive_feof)(void) = stdin_feof;
184 int (*receive_ferror)(void) = stdin_ferror;
185 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
189 /* List of per-address expansion variables for clearing and saving/restoring
190 when verifying one address while routing/verifying another. We have to have
191 the size explicit, because it is referenced from more than one module. */
193 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
194 CUSS &deliver_address_data,
195 CUSS &deliver_domain,
196 CUSS &deliver_domain_data,
197 CUSS &deliver_domain_orig,
198 CUSS &deliver_domain_parent,
199 CUSS &deliver_localpart,
200 CUSS &deliver_localpart_data,
201 CUSS &deliver_localpart_orig,
202 CUSS &deliver_localpart_parent,
203 CUSS &deliver_localpart_prefix,
204 CUSS &deliver_localpart_suffix,
205 CUSS (uschar **)(&deliver_recipients),
213 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
215 /******************************************************************************/
216 /* General global variables. Boolean flags are done as a group
217 so that only one bit each is needed, packed, for all those we never
218 need to take a pointer - and only a char for the rest.
219 This means a struct, unfortunately since it clutters the sourcecode. */
221 struct global_flags f =
223 .acl_temp_details = FALSE,
224 .active_local_from_check = FALSE,
225 .active_local_sender_retain = FALSE,
226 .address_test_mode = FALSE,
228 .allow_auth_unadvertised= FALSE,
229 .allow_unqualified_recipient = TRUE, /* For local messages */
230 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
231 .authentication_local = FALSE,
233 .background_daemon = TRUE,
234 .bdat_readers_wanted = FALSE,
236 .chunking_offered = FALSE,
237 .config_changed = FALSE,
238 .continue_more = FALSE,
240 .daemon_listen = FALSE,
241 .debug_daemon = FALSE,
242 .deliver_firsttime = FALSE,
243 .deliver_force = FALSE,
244 .deliver_freeze = FALSE,
245 .deliver_force_thaw = FALSE,
246 .deliver_manual_thaw = FALSE,
247 .deliver_selectstring_regex = FALSE,
248 .deliver_selectstring_sender_regex = FALSE,
249 .disable_callout_flush = FALSE,
250 .disable_delay_flush = FALSE,
251 .disable_logging = FALSE,
253 .dkim_disable_verify = FALSE,
254 .dkim_init_done = FALSE,
257 .dmarc_has_been_checked = FALSE,
258 .dmarc_disable_verify = FALSE,
259 .dmarc_enable_forensic = FALSE,
261 .dont_deliver = FALSE,
264 .enable_dollar_recipients = FALSE,
265 .expand_string_forcedfail = FALSE,
267 .filter_running = FALSE,
269 .header_rewritten = FALSE,
270 .helo_verified = FALSE,
271 .helo_verify_failed = FALSE,
272 .host_checking_callout = FALSE,
273 .host_find_failed_syntax= FALSE,
275 .inetd_wait_mode = FALSE,
278 .local_error_message = FALSE,
279 .log_testing_mode = FALSE,
281 #ifdef WITH_CONTENT_SCAN
282 .no_mbox_unspool = FALSE,
284 .no_multiline_responses = FALSE,
286 .parse_allow_group = FALSE,
287 .parse_found_group = FALSE,
288 .pipelining_enable = TRUE,
289 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
290 .proxy_session_failed = FALSE,
293 .queue_2stage = FALSE,
294 .queue_only_policy = FALSE,
295 .queue_run_first_delivery = FALSE,
296 .queue_run_force = FALSE,
297 .queue_run_local = FALSE,
298 .queue_running = FALSE,
302 .receive_call_bombout = FALSE,
303 .recipients_discarded = FALSE,
304 .running_in_test_harness = FALSE,
306 .search_find_defer = FALSE,
307 .sender_address_forced = FALSE,
308 .sender_host_notsocket = FALSE,
309 .sender_host_unknown = FALSE,
310 .sender_local = FALSE,
311 .sender_name_forced = FALSE,
312 .sender_set_untrusted = FALSE,
313 .smtp_authenticated = FALSE,
314 #ifndef DISABLE_PIPE_CONNECT
315 .smtp_in_early_pipe_advertised = FALSE,
316 .smtp_in_early_pipe_no_auth = FALSE,
317 .smtp_in_early_pipe_used = FALSE,
319 .smtp_in_pipelining_advertised = FALSE,
320 .smtp_in_pipelining_used = FALSE,
321 .smtp_in_quit = FALSE,
322 .spool_file_wireformat = FALSE,
323 .submission_mode = FALSE,
324 .suppress_local_fixups = FALSE,
325 .suppress_local_fixups_default = FALSE,
326 .synchronous_delivery = FALSE,
327 .system_filtering = FALSE,
329 .taint_check_slow = FALSE,
330 .testsuite_delays = TRUE,
331 .tcp_fastopen_ok = FALSE,
332 .tcp_in_fastopen = FALSE,
333 .tcp_in_fastopen_data = FALSE,
334 .tcp_in_fastopen_logged = FALSE,
335 .tcp_out_fastopen_logged= FALSE,
336 .timestamps_utc = FALSE,
337 .transport_filter_timed_out = FALSE,
338 .trusted_caller = FALSE,
339 .trusted_config = TRUE,
342 /******************************************************************************/
343 /* These are the flags which are either variables or mainsection options,
344 so an address is needed for access, or are exported to local_scan. */
346 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
347 BOOL allow_domain_literals = FALSE;
348 BOOL allow_mx_to_ip = FALSE;
349 BOOL allow_utf8_domains = FALSE;
350 BOOL authentication_failed = FALSE;
352 BOOL bounce_return_body = TRUE;
353 BOOL bounce_return_message = TRUE;
354 BOOL check_rfc2047_length = TRUE;
355 BOOL commandline_checks_require_admin = FALSE;
357 #ifdef EXPERIMENTAL_DCC
358 BOOL dcc_direct_add_header = FALSE;
360 BOOL debug_store = FALSE;
361 BOOL delivery_date_remove = TRUE;
362 BOOL deliver_drop_privilege = FALSE;
363 #ifdef ENABLE_DISABLE_FSYNC
364 BOOL disable_fsync = FALSE;
366 BOOL disable_ipv6 = FALSE;
367 BOOL dns_csa_use_reverse = TRUE;
368 BOOL drop_cr = FALSE; /* No longer used */
370 BOOL envelope_to_remove = TRUE;
371 BOOL exim_gid_set = TRUE; /* This gid is always set */
372 BOOL exim_uid_set = TRUE; /* This uid is always set */
373 BOOL extract_addresses_remove_arguments = TRUE;
375 BOOL host_checking = FALSE;
376 BOOL host_lookup_deferred = FALSE;
377 BOOL host_lookup_failed = FALSE;
378 BOOL ignore_fromline_local = FALSE;
380 BOOL local_from_check = TRUE;
381 BOOL local_sender_retain = FALSE;
382 BOOL log_timezone = FALSE;
383 BOOL message_body_newlines = FALSE;
384 BOOL message_logs = TRUE;
386 BOOL message_smtputf8 = FALSE;
388 BOOL mua_wrapper = FALSE;
390 BOOL preserve_message_logs = FALSE;
391 BOOL print_topbitchars = FALSE;
392 BOOL prod_requires_admin = TRUE;
393 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
394 BOOL proxy_session = FALSE;
397 #ifndef DISABLE_QUEUE_RAMP
398 BOOL queue_fast_ramp = FALSE;
400 BOOL queue_list_requires_admin = TRUE;
401 BOOL queue_only = FALSE;
402 BOOL queue_only_load_latch = TRUE;
403 BOOL queue_only_override = TRUE;
404 BOOL queue_run_in_order = FALSE;
405 BOOL recipients_max_reject = FALSE;
406 BOOL return_path_remove = TRUE;
408 BOOL smtp_batched_input = FALSE;
409 BOOL sender_helo_dnssec = FALSE;
410 BOOL sender_host_dnssec = FALSE;
411 BOOL smtp_accept_keepalive = TRUE;
412 BOOL smtp_check_spool_space = TRUE;
413 BOOL smtp_enforce_sync = TRUE;
414 BOOL smtp_etrn_serialize = TRUE;
415 BOOL smtp_input = FALSE;
416 BOOL smtp_return_error_details = FALSE;
418 BOOL spf_result_guessed = FALSE;
420 BOOL split_spool_directory = FALSE;
421 BOOL spool_wireformat = FALSE;
422 #ifdef EXPERIMENTAL_SRS_ALT
423 BOOL srs_usehash = TRUE;
424 BOOL srs_usetimestamp = TRUE;
426 BOOL strict_acl_vars = FALSE;
427 BOOL strip_excess_angle_brackets = FALSE;
428 BOOL strip_trailing_dot = FALSE;
429 BOOL syslog_duplication = TRUE;
430 BOOL syslog_pid = TRUE;
431 BOOL syslog_timestamp = TRUE;
432 BOOL system_filter_gid_set = FALSE;
433 BOOL system_filter_uid_set = FALSE;
435 BOOL tcp_nodelay = TRUE;
436 BOOL write_rejectlog = TRUE;
438 /******************************************************************************/
440 header_line *acl_added_headers = NULL;
441 tree_node *acl_anchor = NULL;
442 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
443 NULL, NULL, NULL, NULL};
448 uschar *acl_not_smtp = NULL;
449 #ifdef WITH_CONTENT_SCAN
450 uschar *acl_not_smtp_mime = NULL;
452 uschar *acl_not_smtp_start = NULL;
453 uschar *acl_removed_headers = NULL;
454 uschar *acl_smtp_auth = NULL;
455 uschar *acl_smtp_connect = NULL;
456 uschar *acl_smtp_data = NULL;
458 uschar *acl_smtp_data_prdr = US"accept";
461 uschar *acl_smtp_dkim = NULL;
463 uschar *acl_smtp_etrn = NULL;
464 uschar *acl_smtp_expn = NULL;
465 uschar *acl_smtp_helo = NULL;
466 uschar *acl_smtp_mail = NULL;
467 uschar *acl_smtp_mailauth = NULL;
468 #ifdef WITH_CONTENT_SCAN
469 uschar *acl_smtp_mime = NULL;
471 uschar *acl_smtp_notquit = NULL;
472 uschar *acl_smtp_predata = NULL;
473 uschar *acl_smtp_quit = NULL;
474 uschar *acl_smtp_rcpt = NULL;
475 uschar *acl_smtp_starttls = NULL;
476 uschar *acl_smtp_vrfy = NULL;
478 tree_node *acl_var_c = NULL;
479 tree_node *acl_var_m = NULL;
480 uschar *acl_verify_message = NULL;
481 string_item *acl_warn_logged = NULL;
483 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
484 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
486 uschar *acl_wherenames[] = { US"RCPT",
511 uschar *acl_wherecodes[] = { US"550", /* RCPT */
513 US"550", /* PREDATA */
518 US"550", /* RCPT PRDR */
520 US"0", /* not SMTP; not relevant */
522 US"550", /* connect */
525 US"550", /* HELO/EHLO */
526 US"0", /* MAILAUTH; not relevant */
527 US"0", /* not SMTP; not relevant */
528 US"0", /* NOTQUIT; not relevant */
529 US"0", /* QUIT; not relevant */
530 US"550", /* STARTTLS */
532 US"0", /* delivery; not relevant */
533 US"0" /* unknown; not relevant */
536 uschar *add_environment = NULL;
537 address_item *addr_duplicate = NULL;
539 address_item address_defaults = {
544 .start_router = NULL,
549 .fallback_hosts = NULL,
554 .cc_local_part = NULL,
555 .lc_local_part = NULL,
562 .address_retry_key = NULL,
563 .domain_retry_key = NULL,
567 .user_message = NULL,
568 .onetime_parent = NULL,
569 .pipe_expandn = NULL,
570 .return_filename = NULL,
571 .self_hostname = NULL,
572 .shadow_message = NULL,
578 .ocsp = OCSP_NOT_REQ,
580 #ifdef EXPERIMENTAL_DSN_INFO
581 .smtp_greeting = NULL,
582 .helo_response = NULL,
584 .authenticator = NULL,
593 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
594 .localpart_cache = { 0 }, /* localpart_cache - ditto */
597 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
598 .basic_errno = ERRNO_UNKNOWNERROR,
601 .special_action = SPECIAL_NONE,
602 .transport_return = DEFER,
603 .prop = { /* fields that are propagated to children */
604 .address_data = NULL,
606 .localpart_data = NULL,
607 .errors_address = NULL,
608 .extra_headers = NULL,
609 .remove_headers = NULL,
611 #ifdef EXPERIMENTAL_SRS_ALT
614 .ignore_error = FALSE,
617 .utf8_downcvt = FALSE,
618 .utf8_downcvt_maybe = FALSE
623 uschar *address_file = NULL;
624 uschar *address_pipe = NULL;
625 tree_node *addresslist_anchor = NULL;
626 int addresslist_count = 0;
627 gid_t *admin_groups = NULL;
629 #ifdef EXPERIMENTAL_ARC
630 struct arc_set *arc_received = NULL;
631 int arc_received_instance = 0;
632 int arc_oldest_pass = 0;
633 const uschar *arc_state = NULL;
634 const uschar *arc_state_reason = NULL;
637 uschar *authenticated_fail_id = NULL;
638 uschar *authenticated_id = NULL;
639 uschar *authenticated_sender = NULL;
640 auth_instance *auths = NULL;
641 uschar *auth_advertise_hosts = US"*";
642 auth_instance auth_defaults = {
646 .options_block = NULL,
648 .advertise_condition = NULL,
649 .client_condition = NULL,
652 .set_client_id = NULL,
653 .mail_auth_condition = NULL,
654 .server_debug_string = NULL,
655 .server_condition = NULL,
661 uschar *auth_defer_msg = US"reason not recorded";
662 uschar *auth_defer_user_msg = US"";
663 uschar *auth_vars[AUTH_VARS];
665 #ifdef WITH_CONTENT_SCAN
666 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
667 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
671 uschar *base62_chars=
672 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
674 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
677 uschar *bi_command = NULL;
678 uschar *big_buffer = NULL;
679 int big_buffer_size = BIG_BUFFER_SIZE;
680 #ifdef EXPERIMENTAL_BRIGHTMAIL
681 uschar *bmi_alt_location = NULL;
682 uschar *bmi_base64_tracker_verdict = NULL;
683 uschar *bmi_base64_verdict = NULL;
684 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
687 uschar *bmi_verdicts = NULL;
689 int bsmtp_transaction_linecount = 0;
690 int body_8bitmime = 0;
691 int body_linecount = 0;
692 int body_zerocount = 0;
693 uschar *bounce_message_file = NULL;
694 uschar *bounce_message_text = NULL;
695 uschar *bounce_recipient = NULL;
696 int bounce_return_linesize_limit = 998;
697 int bounce_return_size_limit = 100*1024;
698 uschar *bounce_sender_authentication = NULL;
700 uschar *callout_address = NULL;
701 int callout_cache_domain_positive_expire = 7*24*60*60;
702 int callout_cache_domain_negative_expire = 3*60*60;
703 int callout_cache_positive_expire = 24*60*60;
704 int callout_cache_negative_expire = 2*60*60;
705 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
706 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
707 int check_log_inodes = 100;
708 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
709 int check_spool_inodes = 100;
710 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
712 uschar *chunking_advertise_hosts = US"*";
713 unsigned chunking_datasize = 0;
714 unsigned chunking_data_left = 0;
715 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
716 const pcre *regex_CHUNKING = NULL;
718 #ifdef EXPERIMENTAL_ESMTP_LIMITS
719 const pcre *regex_LIMITS = NULL;
722 uschar *client_authenticator = NULL;
723 uschar *client_authenticated_id = NULL;
724 uschar *client_authenticated_sender = NULL;
725 int clmacro_count = 0;
726 uschar *clmacros[MAX_CLMACROS];
727 FILE *config_file = NULL;
728 const uschar *config_filename = NULL;
729 int config_lineno = 0;
730 #ifdef CONFIGURE_GROUP
731 gid_t config_gid = CONFIGURE_GROUP;
733 gid_t config_gid = 0;
735 uschar *config_main_filelist = US CONFIGURE_FILE
736 "\0<-----------Space to patch configure_filename->";
737 uschar *config_main_filename = NULL;
738 uschar *config_main_directory = NULL;
740 #ifdef CONFIGURE_OWNER
741 uid_t config_uid = CONFIGURE_OWNER;
743 uid_t config_uid = 0;
746 int connection_max_messages= -1;
747 uschar *continue_proxy_cipher = NULL;
748 BOOL continue_proxy_dane = FALSE;
749 uschar *continue_proxy_sni = NULL;
750 uschar *continue_hostname = NULL;
751 uschar *continue_host_address = NULL;
752 int continue_sequence = 1;
753 uschar *continue_transport = NULL;
754 #ifdef EXPERIMENTAL_ESMTP_LIMITS
755 unsigned continue_limit_mail = 0;
756 unsigned continue_limit_rcpt = 0;
757 unsigned continue_limit_rcptdom= 0;
760 uschar *csa_status = NULL;
762 .callout_hold_only = FALSE, /* verify-only: normal delivery */
763 .delivery = FALSE, /* when to attempt */
764 .defer_pass = FALSE, /* on defer: spool locally */
765 .is_tls = FALSE, /* not a TLS conn yet */
766 .cctx = {.sock = -1}, /* open connection */
767 .nrcpt = 0, /* number of addresses */
770 int daemon_notifier_fd = -1;
771 uschar *daemon_smtp_port = US"smtp";
772 int daemon_startup_retries = 9;
773 int daemon_startup_sleep = 30;
775 #ifdef EXPERIMENTAL_DCC
776 uschar *dcc_header = NULL;
777 uschar *dcc_result = NULL;
778 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
779 uschar *dccifd_options = US"header";
783 FILE *debug_file = NULL;
784 int debug_notall[] = {
789 bit_table debug_options[] = { /* must be in alphabetical order and use
790 only the enum values from macro.h */
794 BIT_TABLE(D, deliver),
798 BIT_TABLE(D, expand),
799 BIT_TABLE(D, filter),
800 BIT_TABLE(D, hints_lookup),
801 BIT_TABLE(D, host_lookup),
803 BIT_TABLE(D, interface),
806 BIT_TABLE(D, local_scan),
807 BIT_TABLE(D, lookup),
808 BIT_TABLE(D, memory),
809 BIT_TABLE(D, noutf8),
811 BIT_TABLE(D, process_info),
812 BIT_TABLE(D, queue_run),
813 BIT_TABLE(D, receive),
814 BIT_TABLE(D, resolver),
816 BIT_TABLE(D, rewrite),
818 BIT_TABLE(D, timestamp),
820 BIT_TABLE(D, transport),
822 BIT_TABLE(D, verify),
824 int debug_options_count = nelem(debug_options);
826 unsigned int debug_selector = 0;
827 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
828 uschar *delay_warning_condition=
830 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
831 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
832 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
834 uschar *deliver_address_data = NULL;
835 int deliver_datafile = -1;
836 const uschar *deliver_domain = NULL;
837 uschar *deliver_domain_data = NULL;
838 const uschar *deliver_domain_orig = NULL;
839 const uschar *deliver_domain_parent = NULL;
840 time_t deliver_frozen_at = 0;
841 uschar *deliver_home = NULL;
842 const uschar *deliver_host = NULL;
843 const uschar *deliver_host_address = NULL;
844 int deliver_host_port = 0;
845 uschar *deliver_in_buffer = NULL;
846 ino_t deliver_inode = 0;
847 uschar *deliver_localpart = NULL;
848 uschar *deliver_localpart_data = NULL;
849 uschar *deliver_localpart_orig = NULL;
850 uschar *deliver_localpart_parent = NULL;
851 uschar *deliver_localpart_prefix = NULL;
852 uschar *deliver_localpart_prefix_v = NULL;
853 uschar *deliver_localpart_suffix = NULL;
854 uschar *deliver_localpart_suffix_v = NULL;
855 uschar *deliver_out_buffer = NULL;
856 int deliver_queue_load_max = -1;
857 address_item *deliver_recipients = NULL;
858 uschar *deliver_selectstring = NULL;
859 uschar *deliver_selectstring_sender = NULL;
862 unsigned dkim_collect_input = 0;
863 uschar *dkim_cur_signer = NULL;
864 int dkim_key_length = 0;
865 void *dkim_signatures = NULL;
866 uschar *dkim_signers = NULL;
867 uschar *dkim_signing_domain = NULL;
868 uschar *dkim_signing_selector = NULL;
869 uschar *dkim_verify_hashes = US"sha256:sha512";
870 uschar *dkim_verify_keytypes = US"ed25519:rsa";
871 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
872 BOOL dkim_verify_minimal = FALSE;
873 uschar *dkim_verify_overall = NULL;
874 uschar *dkim_verify_signers = US"$dkim_signers";
875 uschar *dkim_verify_status = NULL;
876 uschar *dkim_verify_reason = NULL;
879 uschar *dmarc_domain_policy = NULL;
880 uschar *dmarc_forensic_sender = NULL;
881 uschar *dmarc_history_file = NULL;
882 uschar *dmarc_status = NULL;
883 uschar *dmarc_status_text = NULL;
884 uschar *dmarc_tld_file = NULL;
885 uschar *dmarc_used_domain = NULL;
888 uschar *dns_again_means_nonexist = NULL;
889 int dns_csa_search_limit = 5;
890 int dns_cname_loops = 1;
892 int dns_dane_ok = -1;
894 uschar *dns_ipv4_lookup = NULL;
897 int dns_dnssec_ok = -1; /* <0 = not coerced */
898 uschar *dns_trust_aa = NULL;
899 int dns_use_edns0 = -1; /* <0 = not coerced */
900 uschar *dnslist_domain = NULL;
901 uschar *dnslist_matched = NULL;
902 uschar *dnslist_text = NULL;
903 uschar *dnslist_value = NULL;
904 tree_node *domainlist_anchor = NULL;
905 int domainlist_count = 0;
906 uschar *dsn_from = US DEFAULT_DSN_FROM;
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 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 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 tree_node *hostlist_anchor = NULL;
999 int hostlist_count = 0;
1000 uschar *hosts_treat_as_local = NULL;
1001 uschar *hosts_require_helo = US"*";
1002 uschar *hosts_connection_nolog = NULL;
1004 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
1005 uschar *ignore_fromline_hosts = NULL;
1006 int inetd_wait_timeout = -1;
1007 uschar *initial_cwd = NULL;
1008 uschar *interface_address = NULL;
1009 int interface_port = -1;
1010 uschar *iterate_item = NULL;
1012 int journal_fd = -1;
1014 uschar *keep_environment = NULL;
1016 int keep_malformed = 4*24*60*60; /* 4 days */
1018 uschar *eldap_dn = NULL;
1019 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1020 uschar *limits_advertise_hosts = US"*";
1022 int load_average = -2;
1023 uschar *local_from_prefix = NULL;
1024 uschar *local_from_suffix = NULL;
1027 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1029 uschar *local_interfaces = US"0.0.0.0";
1032 #ifdef HAVE_LOCAL_SCAN
1033 uschar *local_scan_data = NULL;
1034 int local_scan_timeout = 5*60;
1036 gid_t local_user_gid = (gid_t)(-1);
1037 uid_t local_user_uid = (uid_t)(-1);
1039 tree_node *localpartlist_anchor= NULL;
1040 int localpartlist_count = 0;
1041 uschar *log_buffer = NULL;
1043 int log_default[] = { /* for initializing log_selector */
1044 Li_acl_warn_skipped,
1045 Li_connection_reject,
1050 Li_host_lookup_failed,
1051 Li_lost_incoming_connection,
1052 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1055 Li_queue_time_exclusive,
1058 Li_sender_verify_fail,
1061 Li_smtp_confirmation,
1062 #ifdef ALLOW_INSECURE_TAINTED_DATA
1065 Li_tls_certificate_verified,
1070 uschar *log_file_path = US LOG_FILE_PATH
1071 "\0<--------------Space to patch log_file_path->";
1073 int log_notall[] = {
1076 bit_table log_options[] = { /* must be in alphabetical order,
1077 with definitions from enum logbit. */
1078 BIT_TABLE(L, 8bitmime),
1079 BIT_TABLE(L, acl_warn_skipped),
1080 BIT_TABLE(L, address_rewrite),
1082 BIT_TABLE(L, all_parents),
1083 BIT_TABLE(L, arguments),
1084 BIT_TABLE(L, connection_reject),
1085 BIT_TABLE(L, delay_delivery),
1086 BIT_TABLE(L, deliver_time),
1087 BIT_TABLE(L, delivery_size),
1088 #ifndef DISABLE_DKIM
1090 BIT_TABLE(L, dkim_verbose),
1092 BIT_TABLE(L, dnslist_defer),
1093 BIT_TABLE(L, dnssec),
1095 BIT_TABLE(L, host_lookup_failed),
1096 BIT_TABLE(L, ident_timeout),
1097 BIT_TABLE(L, incoming_interface),
1098 BIT_TABLE(L, incoming_port),
1099 BIT_TABLE(L, lost_incoming_connection),
1100 BIT_TABLE(L, millisec),
1101 BIT_TABLE(L, msg_id),
1102 BIT_TABLE(L, msg_id_created),
1103 BIT_TABLE(L, outgoing_interface),
1104 BIT_TABLE(L, outgoing_port),
1106 BIT_TABLE(L, pipelining),
1107 BIT_TABLE(L, protocol_detail),
1108 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1109 BIT_TABLE(L, proxy),
1111 BIT_TABLE(L, queue_run),
1112 BIT_TABLE(L, queue_time),
1113 BIT_TABLE(L, queue_time_exclusive),
1114 BIT_TABLE(L, queue_time_overall),
1115 BIT_TABLE(L, receive_time),
1116 BIT_TABLE(L, received_recipients),
1117 BIT_TABLE(L, received_sender),
1118 BIT_TABLE(L, rejected_header),
1119 { US"rejected_headers", Li_rejected_header },
1120 BIT_TABLE(L, retry_defer),
1121 BIT_TABLE(L, return_path_on_delivery),
1122 BIT_TABLE(L, sender_on_delivery),
1123 BIT_TABLE(L, sender_verify_fail),
1124 BIT_TABLE(L, size_reject),
1125 BIT_TABLE(L, skip_delivery),
1126 BIT_TABLE(L, smtp_confirmation),
1127 BIT_TABLE(L, smtp_connection),
1128 BIT_TABLE(L, smtp_incomplete_transaction),
1129 BIT_TABLE(L, smtp_mailauth),
1130 BIT_TABLE(L, smtp_no_mail),
1131 BIT_TABLE(L, smtp_protocol_error),
1132 BIT_TABLE(L, smtp_syntax_error),
1133 BIT_TABLE(L, subject),
1134 #ifdef ALLOW_INSECURE_TAINTED_DATA
1135 BIT_TABLE(L, tainted),
1137 BIT_TABLE(L, tls_certificate_verified),
1138 BIT_TABLE(L, tls_cipher),
1139 BIT_TABLE(L, tls_peerdn),
1140 BIT_TABLE(L, tls_resumption),
1141 BIT_TABLE(L, tls_sni),
1142 BIT_TABLE(L, unknown_in_list),
1144 int log_options_count = nelem(log_options);
1146 int log_reject_target = 0;
1147 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1148 uschar *log_selector_string = NULL;
1149 FILE *log_stderr = NULL;
1150 uschar *login_sender_address = NULL;
1151 uschar *lookup_dnssec_authenticated = NULL;
1152 int lookup_open_max = 25;
1153 uschar *lookup_value = NULL;
1155 macro_item *macros_user = NULL;
1156 uschar *mailstore_basename = NULL;
1157 #ifdef WITH_CONTENT_SCAN
1158 uschar *malware_name = NULL; /* Virus Name */
1160 int max_received_linelength= 0;
1161 int max_username_length = 0;
1162 int message_age = 0;
1163 uschar *message_body = NULL;
1164 uschar *message_body_end = NULL;
1165 int message_body_size = 0;
1166 int message_body_visible = 500;
1167 int message_ended = END_NOTSTARTED;
1168 uschar *message_headers = NULL;
1170 uschar *message_id_domain = NULL;
1171 uschar *message_id_text = NULL;
1172 struct timeval message_id_tv = { 0, 0 };
1173 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1174 uschar *message_id_external;
1175 int message_linecount = 0;
1176 int message_size = 0;
1177 uschar *message_size_limit = US"50M";
1179 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1181 uschar message_subdir[2] = { 0, 0 };
1182 uschar *message_reference = NULL;
1184 /* MIME ACL expandables */
1185 #ifdef WITH_CONTENT_SCAN
1186 int mime_anomaly_level = 0;
1187 const uschar *mime_anomaly_text = NULL;
1188 uschar *mime_boundary = NULL;
1189 uschar *mime_charset = NULL;
1190 uschar *mime_content_description = NULL;
1191 uschar *mime_content_disposition = NULL;
1192 uschar *mime_content_id = NULL;
1193 unsigned int mime_content_size = 0;
1194 uschar *mime_content_transfer_encoding = NULL;
1195 uschar *mime_content_type = NULL;
1196 uschar *mime_decoded_filename = NULL;
1197 uschar *mime_filename = NULL;
1198 int mime_is_multipart = 0;
1199 int mime_is_coverletter = 0;
1200 int mime_is_rfc822 = 0;
1201 int mime_part_count = -1;
1204 uid_t *never_users = NULL;
1205 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1207 const int on = 1; /* for setsockopt */
1210 uid_t original_euid;
1211 gid_t originator_gid;
1212 uschar *originator_login = NULL;
1213 uschar *originator_name = NULL;
1214 uid_t originator_uid;
1215 uschar *override_local_interfaces = NULL;
1216 uschar *override_pid_file_path = NULL;
1218 uschar *percent_hack_domains = NULL;
1219 uschar *pid_file_path = US PID_FILE_PATH
1220 "\0<--------------Space to patch pid_file_path->";
1221 #ifndef DISABLE_PIPE_CONNECT
1222 uschar *pipe_connect_advertise_hosts = US"*";
1224 uschar *pipelining_advertise_hosts = US"*";
1225 uschar *primary_hostname = NULL;
1226 uschar *process_info;
1227 int process_info_len = 0;
1228 uschar *process_log_path = NULL;
1229 const uschar *process_purpose = US"fresh-exec";
1231 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1232 uschar *hosts_proxy = NULL;
1233 uschar *proxy_external_address = NULL;
1234 int proxy_external_port = 0;
1235 uschar *proxy_local_address = NULL;
1236 int proxy_local_port = 0;
1237 int proxy_protocol_timeout = 3;
1240 uschar *prvscheck_address = NULL;
1241 uschar *prvscheck_keynum = NULL;
1242 uschar *prvscheck_result = NULL;
1245 const uschar *qualify_domain_recipient = NULL;
1246 uschar *qualify_domain_sender = NULL;
1247 uschar *queue_domains = NULL;
1248 int queue_interval = -1;
1249 uschar *queue_name = US"";
1250 uschar *queue_name_dest = NULL;
1251 uschar *queue_only_file = NULL;
1252 int queue_only_load = -1;
1253 uschar *queue_run_max = US"5";
1254 pid_t queue_run_pid = (pid_t)0;
1255 int queue_run_pipe = -1;
1256 unsigned queue_size = 0;
1257 time_t queue_size_next = 0;
1258 uschar *queue_smtp_domains = NULL;
1260 uint32_t random_seed = 0;
1261 tree_node *ratelimiters_cmd = NULL;
1262 tree_node *ratelimiters_conn = NULL;
1263 tree_node *ratelimiters_mail = NULL;
1264 uschar *raw_active_hostname = NULL;
1265 uschar *raw_sender = NULL;
1266 uschar **raw_recipients = NULL;
1267 int raw_recipients_count = 0;
1270 int rcpt_fail_count = 0;
1271 int rcpt_defer_count = 0;
1274 int receive_linecount = 0;
1275 int receive_messagecount = 0;
1276 int receive_timeout = 0;
1277 int received_count = 0;
1278 uschar *received_for = NULL;
1280 /* This is the default text for Received headers generated by Exim. The
1281 date will be automatically added on the end. */
1283 uschar *received_header_text = US
1285 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1286 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1287 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1288 "by $primary_hostname "
1289 "${if def:received_protocol {with $received_protocol }}"
1291 "${if def:tls_in_ver { ($tls_in_ver)}}"
1292 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1294 "(Exim $version_number)\n\t"
1295 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1296 "id $message_exim_id"
1297 "${if def:received_for {\n\tfor $received_for}}"
1298 "\0<---------------Space to patch received_header_text->";
1300 int received_headers_max = 30;
1301 uschar *received_protocol = NULL;
1302 struct timeval received_time = { 0, 0 };
1303 struct timeval received_time_complete = { 0, 0 };
1304 uschar *recipient_data = NULL;
1305 uschar *recipient_unqualified_hosts = NULL;
1306 uschar *recipient_verify_failure = NULL;
1307 int recipients_count = 0;
1308 recipient_item *recipients_list = NULL;
1309 int recipients_list_max = 0;
1310 int recipients_max = 50000;
1311 const pcre *regex_AUTH = NULL;
1312 const pcre *regex_check_dns_names = NULL;
1313 const pcre *regex_From = NULL;
1314 const pcre *regex_IGNOREQUOTA = NULL;
1315 const pcre *regex_PIPELINING = NULL;
1316 const pcre *regex_SIZE = NULL;
1317 #ifndef DISABLE_PIPE_CONNECT
1318 const pcre *regex_EARLY_PIPE = NULL;
1320 const pcre *regex_ismsgid = NULL;
1321 const pcre *regex_smtp_code = NULL;
1322 uschar *regex_vars[REGEX_VARS];
1323 #ifdef WHITELIST_D_MACROS
1324 const pcre *regex_whitelisted_macro = NULL;
1326 #ifdef WITH_CONTENT_SCAN
1327 uschar *regex_match_string = NULL;
1329 int remote_delivery_count = 0;
1330 int remote_max_parallel = 2;
1331 uschar *remote_sort_domains = NULL;
1332 int retry_data_expire = 7*24*60*60;
1333 int retry_interval_max = 24*60*60;
1334 int retry_maximum_timeout = 0; /* set from retry config */
1335 retry_config *retries = NULL;
1336 uschar *return_path = NULL;
1337 int rewrite_existflags = 0;
1338 uschar *rfc1413_hosts = US"@[]";
1339 int rfc1413_query_timeout = 0;
1340 uid_t root_gid = ROOT_GID;
1341 uid_t root_uid = ROOT_UID;
1343 router_instance *routers = NULL;
1344 router_instance router_defaults = {
1348 .options_block = NULL,
1349 .driver_name = NULL,
1351 .address_data = NULL,
1352 #ifdef EXPERIMENTAL_BRIGHTMAIL
1355 .cannot_route_message = NULL,
1357 .current_directory = NULL,
1358 .debug_string = NULL,
1363 .expand_more = NULL,
1364 .expand_unseen = NULL,
1365 .extra_headers = NULL,
1366 .fallback_hosts = NULL,
1367 .home_directory = NULL,
1368 .ignore_target_hosts = NULL,
1369 .local_parts = NULL,
1370 .pass_router_name = NULL,
1372 .redirect_router_name = NULL,
1373 .remove_headers = NULL,
1374 .require_files = NULL,
1375 .router_home_directory = NULL,
1379 .translate_ip_address = NULL,
1380 .transport_name = NULL,
1382 .address_test = TRUE,
1383 #ifdef EXPERIMENTAL_BRIGHTMAIL
1384 .bmi_deliver_alternate = FALSE,
1385 .bmi_deliver_default = FALSE,
1386 .bmi_dont_deliver = FALSE,
1389 .caseful_local_part = FALSE,
1390 .check_local_user = FALSE,
1391 .disable_logging = FALSE,
1392 .fail_verify_recipient = FALSE,
1393 .fail_verify_sender = FALSE,
1395 .initgroups = FALSE,
1396 .log_as_local = TRUE_UNSET,
1398 .pass_on_timeout = FALSE,
1399 .prefix_optional = FALSE,
1401 .retry_use_local_part = TRUE_UNSET,
1402 .same_domain_copy_routing = FALSE,
1403 .self_rewrite = FALSE,
1405 .suffix_optional = FALSE,
1406 .verify_only = FALSE,
1407 .verify_recipient = TRUE,
1408 .verify_sender = TRUE,
1411 .dsn_lasthop = FALSE,
1413 .self_code = self_freeze,
1417 .fallback_hostlist = NULL,
1419 .pass_router = NULL,
1420 .redirect_router = NULL,
1422 .dnssec = { .request= US"*", .require=NULL },
1425 uschar *router_name = NULL;
1426 tree_node *router_var = NULL;
1428 ip_address_item *running_interfaces = NULL;
1430 /* This is a weird one. The following string gets patched in the binary by the
1431 script that sets up a copy of Exim for running in the test harness. It seems
1432 that compilers are now clever, and share constant strings if they can.
1433 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1434 make use of the end of this string in order to save space. So the patching then
1435 wrecks this. We defeat this optimization by adding some additional characters
1436 onto the end of the string. */
1438 uschar *running_status = US">>>running<<<" "\0EXTRA";
1442 uschar *search_error_message = NULL;
1443 uschar *self_hostname = NULL;
1444 uschar *sender_address = NULL;
1445 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1446 uschar *sender_address_data = NULL;
1447 uschar *sender_address_unrewritten = NULL;
1448 uschar *sender_data = NULL;
1449 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1450 uschar *sender_fullhost = NULL;
1451 uschar *sender_helo_name = NULL;
1452 uschar **sender_host_aliases = &no_aliases;
1453 uschar *sender_host_address = NULL;
1454 uschar *sender_host_authenticated = NULL;
1455 uschar *sender_host_auth_pubname = NULL;
1456 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1457 uschar *sender_host_name = NULL;
1458 int sender_host_port = 0;
1459 uschar *sender_ident = NULL;
1460 uschar *sender_rate = NULL;
1461 uschar *sender_rate_limit = NULL;
1462 uschar *sender_rate_period = NULL;
1463 uschar *sender_rcvhost = NULL;
1464 uschar *sender_unqualified_hosts = NULL;
1465 uschar *sender_verify_failure = NULL;
1466 address_item *sender_verified_list = NULL;
1467 address_item *sender_verified_failed = NULL;
1468 int sender_verified_rc = -1;
1469 uschar *sending_ip_address = NULL;
1470 int sending_port = -1;
1471 SIGNAL_BOOL sigalrm_seen = FALSE;
1472 const uschar *sigalarm_setter = NULL;
1473 uschar **sighup_argv = NULL;
1474 int slow_lookup_log = 0; /* millisecs, zero disables */
1475 int smtp_accept_count = 0;
1476 int smtp_accept_max = 20;
1477 int smtp_accept_max_nonmail= 10;
1478 uschar *smtp_accept_max_nonmail_hosts = US"*";
1479 uschar *smtp_accept_max_per_connection = US"1000";
1480 uschar *smtp_accept_max_per_host = NULL;
1481 int smtp_accept_queue = 0;
1482 int smtp_accept_queue_per_connection = 10;
1483 int smtp_accept_reserve = 0;
1484 uschar *smtp_active_hostname = NULL;
1485 int smtp_backlog_monitor = 0;
1486 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1487 "Exim $version_number $tod_full"
1488 "\0<---------------Space to patch smtp_banner->";
1489 int smtp_ch_index = 0;
1490 uschar *smtp_cmd_argument = NULL;
1491 uschar *smtp_cmd_buffer = NULL;
1492 struct timeval smtp_connection_start = {0,0};
1493 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1494 int smtp_connect_backlog = 20;
1495 double smtp_delay_mail = 0.0;
1496 double smtp_delay_rcpt = 0.0;
1497 FILE *smtp_in = NULL;
1498 int smtp_listen_backlog = 0;
1499 int smtp_load_reserve = -1;
1500 int smtp_mailcmd_count = 0;
1501 int smtp_mailcmd_max = -1;
1502 FILE *smtp_out = NULL;
1503 uschar *smtp_etrn_command = NULL;
1504 int smtp_max_synprot_errors= 3;
1505 int smtp_max_unknown_commands = 3;
1506 uschar *smtp_notquit_reason = NULL;
1507 unsigned smtp_peer_options = 0;
1508 unsigned smtp_peer_options_wrap= 0;
1509 uschar *smtp_ratelimit_hosts = NULL;
1510 uschar *smtp_ratelimit_mail = NULL;
1511 uschar *smtp_ratelimit_rcpt = NULL;
1512 uschar *smtp_read_error = US"";
1513 int smtp_receive_timeout = 5*60;
1514 uschar *smtp_receive_timeout_s = NULL;
1515 uschar *smtp_reserve_hosts = NULL;
1516 int smtp_rlm_base = 0;
1517 double smtp_rlm_factor = 0.0;
1518 int smtp_rlm_limit = 0;
1519 int smtp_rlm_threshold = INT_MAX;
1520 int smtp_rlr_base = 0;
1521 double smtp_rlr_factor = 0.0;
1522 int smtp_rlr_limit = 0;
1523 int smtp_rlr_threshold = INT_MAX;
1525 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1528 #ifdef WITH_CONTENT_SCAN
1529 uschar *spamd_address = US"127.0.0.1 783";
1530 uschar *spam_bar = NULL;
1531 uschar *spam_report = NULL;
1532 uschar *spam_action = NULL;
1533 uschar *spam_score = NULL;
1534 uschar *spam_score_int = NULL;
1537 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1538 uschar *spf_header_comment = NULL;
1539 uschar *spf_received = NULL;
1540 uschar *spf_result = NULL;
1541 uschar *spf_smtp_comment = NULL;
1542 uschar *spf_smtp_comment_template
1543 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1544 = US"Please%_see%_http://www.open-spf.org/Why";
1548 FILE *spool_data_file = NULL;
1549 uschar *spool_directory = US SPOOL_DIRECTORY
1550 "\0<--------------Space to patch spool_directory->";
1551 #ifdef EXPERIMENTAL_SRS_ALT
1552 uschar *srs_config = NULL;
1553 uschar *srs_db_address = NULL;
1554 uschar *srs_db_key = NULL;
1555 int srs_hashlength = 6;
1556 int srs_hashmin = -1;
1557 int srs_maxage = 31;
1558 uschar *srs_orig_recipient = NULL;
1559 uschar *srs_orig_sender = NULL;
1560 uschar *srs_recipient = NULL;
1561 uschar *srs_secrets = NULL;
1562 uschar *srs_status = NULL;
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 = 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 - 2020";
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 uschar *warnmsg_delay = NULL;
1667 uschar *warnmsg_recipients = NULL;
1670 /* End of globals.c */