1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 /* All the global variables are defined together in this one module, so
9 that they are easy to find. */
14 /* Generic options for auths, all of which live inside auth_instance
15 data blocks and hence have the opt_public flag set. */
17 optionlist optionlist_auths[] = {
18 { "client_condition", opt_stringptr | opt_public,
19 (void *)(offsetof(auth_instance, client_condition)) },
20 { "client_set_id", opt_stringptr | opt_public,
21 (void *)(offsetof(auth_instance, set_client_id)) },
22 { "driver", opt_stringptr | opt_public,
23 (void *)(offsetof(auth_instance, driver_name)) },
24 { "public_name", opt_stringptr | opt_public,
25 (void *)(offsetof(auth_instance, public_name)) },
26 { "server_advertise_condition", opt_stringptr | opt_public,
27 (void *)(offsetof(auth_instance, advertise_condition))},
28 { "server_condition", opt_stringptr | opt_public,
29 (void *)(offsetof(auth_instance, server_condition)) },
30 { "server_debug_print", opt_stringptr | opt_public,
31 (void *)(offsetof(auth_instance, server_debug_string)) },
32 { "server_mail_auth_condition", opt_stringptr | opt_public,
33 (void *)(offsetof(auth_instance, mail_auth_condition)) },
34 { "server_set_id", opt_stringptr | opt_public,
35 (void *)(offsetof(auth_instance, set_id)) }
38 int optionlist_auths_size = nelem(optionlist_auths);
40 /* An empty host aliases list. */
42 uschar *no_aliases = NULL;
45 /* For comments on these variables, see globals.h. I'm too idle to
46 duplicate them here... */
49 uschar *opt_perl_startup = NULL;
50 BOOL opt_perl_at_start = FALSE;
51 BOOL opt_perl_started = FALSE;
52 BOOL opt_perl_taintmode = FALSE;
56 tree_node *dlobj_anchor = NULL;
60 uschar *ibase_servers = NULL;
64 uschar *eldap_ca_cert_dir = NULL;
65 uschar *eldap_ca_cert_file = NULL;
66 uschar *eldap_cert_file = NULL;
67 uschar *eldap_cert_key = NULL;
68 uschar *eldap_cipher_suite = NULL;
69 uschar *eldap_default_servers = NULL;
70 uschar *eldap_require_cert = NULL;
71 int eldap_version = -1;
72 BOOL eldap_start_tls = FALSE;
76 uschar *mysql_servers = NULL;
80 uschar *oracle_servers = NULL;
84 uschar *pgsql_servers = NULL;
88 uschar *redis_servers = NULL;
92 int sqlite_lock_timeout = 5;
95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
96 BOOL move_frozen_messages = FALSE;
99 /* These variables are outside the #ifdef because it keeps the code less
100 cluttered in several places (e.g. during logging) if we can always refer to
101 them. Also, the tls_ variables are now always visible. Note that these are
102 only used for smtp connections, not for service-daemon access. */
104 tls_support tls_in = {
105 .active = {.sock = -1},
107 .certificate_verified = FALSE,
109 .dane_verified = FALSE,
114 .on_connect_ports = NULL,
121 tls_support tls_out = {
122 .active = {.sock = -1},
124 .certificate_verified = FALSE,
126 .dane_verified = FALSE,
131 .on_connect_ports = NULL,
139 uschar *dsn_envid = NULL;
141 const pcre *regex_DSN = NULL;
142 uschar *dsn_advertise_hosts = NULL;
145 BOOL gnutls_compat_mode = FALSE;
146 BOOL gnutls_allow_auto_pkcs11 = FALSE;
147 uschar *openssl_options = NULL;
148 const pcre *regex_STARTTLS = NULL;
149 uschar *tls_advertise_hosts = US"*";
150 uschar *tls_certificate = NULL;
151 uschar *tls_crl = NULL;
152 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
153 that's the interop problem which has been observed: GnuTLS suggesting a higher
154 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
155 int tls_dh_max_bits = 2236;
156 uschar *tls_dhparam = NULL;
157 uschar *tls_eccurve = US"auto";
158 # ifndef DISABLE_OCSP
159 uschar *tls_ocsp_file = NULL;
161 uschar *tls_privatekey = NULL;
162 BOOL tls_remember_esmtp = FALSE;
163 uschar *tls_require_ciphers = NULL;
164 # ifdef EXPERIMENTAL_REQUIRETLS
165 uschar tls_requiretls = 0; /* REQUIRETLS_MSG etc. bit #defines */
166 uschar *tls_advertise_requiretls = US"*";
167 const pcre *regex_REQUIRETLS = NULL;
169 uschar *tls_try_verify_hosts = NULL;
170 uschar *tls_verify_certificates= US"system";
171 uschar *tls_verify_hosts = NULL;
172 #else /*!SUPPORT_TLS*/
173 uschar *tls_advertise_hosts = NULL;
177 /* Per Recipient Data Response variables */
178 BOOL prdr_enable = FALSE;
179 BOOL prdr_requested = FALSE;
180 const pcre *regex_PRDR = NULL;
184 const pcre *regex_UTF8 = NULL;
187 /* Input-reading functions for messages, so we can use special ones for
188 incoming TCP/IP. The defaults use stdin. We never need these for any
189 stand-alone tests. */
191 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
192 int (*lwr_receive_getc)(unsigned) = stdin_getc;
193 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
194 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
195 int (*receive_getc)(unsigned) = stdin_getc;
196 uschar * (*receive_getbuf)(unsigned *) = NULL;
197 void (*receive_get_cache)(void)= NULL;
198 int (*receive_ungetc)(int) = stdin_ungetc;
199 int (*receive_feof)(void) = stdin_feof;
200 int (*receive_ferror)(void) = stdin_ferror;
201 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
205 /* List of per-address expansion variables for clearing and saving/restoring
206 when verifying one address while routing/verifying another. We have to have
207 the size explicit, because it is referenced from more than one module. */
209 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
210 CUSS &deliver_address_data,
211 CUSS &deliver_domain,
212 CUSS &deliver_domain_data,
213 CUSS &deliver_domain_orig,
214 CUSS &deliver_domain_parent,
215 CUSS &deliver_localpart,
216 CUSS &deliver_localpart_data,
217 CUSS &deliver_localpart_orig,
218 CUSS &deliver_localpart_parent,
219 CUSS &deliver_localpart_prefix,
220 CUSS &deliver_localpart_suffix,
221 CUSS (uschar **)(&deliver_recipients),
229 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
231 /******************************************************************************/
232 /* General global variables. Boolean flags are done as a group
233 so that only one bit each is needed, packed, for all those we never
234 need to take a pointer - and only a char for the rest.
235 This means a struct, unfortunately since it clutters the sourcecode. */
237 struct global_flags f =
239 .acl_temp_details = FALSE,
240 .active_local_from_check = FALSE,
241 .active_local_sender_retain = FALSE,
242 .address_test_mode = FALSE,
244 .allow_auth_unadvertised= FALSE,
245 .allow_unqualified_recipient = TRUE, /* For local messages */
246 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
247 .authentication_local = FALSE,
249 .background_daemon = TRUE,
251 .chunking_offered = FALSE,
252 .config_changed = FALSE,
253 .continue_more = FALSE,
255 .daemon_listen = FALSE,
256 .debug_daemon = FALSE,
257 .deliver_firsttime = FALSE,
258 .deliver_force = FALSE,
259 .deliver_freeze = FALSE,
260 .deliver_force_thaw = FALSE,
261 .deliver_manual_thaw = FALSE,
262 .deliver_selectstring_regex = FALSE,
263 .deliver_selectstring_sender_regex = FALSE,
264 .disable_callout_flush = FALSE,
265 .disable_delay_flush = FALSE,
266 .disable_logging = FALSE,
268 .dkim_disable_verify = FALSE,
270 #ifdef EXPERIMENTAL_DMARC
271 .dmarc_has_been_checked = FALSE,
272 .dmarc_disable_verify = FALSE,
273 .dmarc_enable_forensic = FALSE,
275 .dont_deliver = FALSE,
278 .enable_dollar_recipients = FALSE,
279 .expand_string_forcedfail = FALSE,
281 .filter_running = FALSE,
283 .header_rewritten = FALSE,
284 .helo_verified = FALSE,
285 .helo_verify_failed = FALSE,
286 .host_checking_callout = FALSE,
287 .host_find_failed_syntax= FALSE,
289 .inetd_wait_mode = FALSE,
292 .local_error_message = FALSE,
293 .log_testing_mode = FALSE,
295 #ifdef WITH_CONTENT_SCAN
296 .no_mbox_unspool = FALSE,
298 .no_multiline_responses = FALSE,
300 .parse_allow_group = FALSE,
301 .parse_found_group = FALSE,
302 .pipelining_enable = TRUE,
303 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
304 .proxy_session_failed = FALSE,
307 .queue_2stage = FALSE,
308 .queue_only_policy = FALSE,
309 .queue_run_first_delivery = FALSE,
310 .queue_run_force = FALSE,
311 .queue_run_local = FALSE,
312 .queue_running = FALSE,
316 .receive_call_bombout = FALSE,
317 .recipients_discarded = FALSE,
318 /* BOOL rfc821_domains = FALSE; <<< on the way out */
319 .running_in_test_harness = FALSE,
321 .search_find_defer = FALSE,
322 .sender_address_forced = FALSE,
323 .sender_host_notsocket = FALSE,
324 .sender_host_unknown = FALSE,
325 .sender_local = FALSE,
326 .sender_name_forced = FALSE,
327 .sender_set_untrusted = FALSE,
328 /* BOOL sender_verified_responded = FALSE; /* never used? */
329 .smtp_authenticated = FALSE,
330 .smtp_in_pipelining_advertised = FALSE,
331 .smtp_in_pipelining_used = FALSE,
332 .spool_file_wireformat = FALSE,
333 .submission_mode = FALSE,
334 .suppress_local_fixups = FALSE,
335 .suppress_local_fixups_default = FALSE,
336 .synchronous_delivery = FALSE,
337 .system_filtering = FALSE,
339 .tcp_fastopen_ok = FALSE,
340 .tcp_in_fastopen = FALSE,
341 .tcp_in_fastopen_logged = FALSE,
342 .tcp_out_fastopen_logged= FALSE,
343 .timestamps_utc = FALSE,
344 .transport_filter_timed_out = FALSE,
345 .trusted_caller = FALSE,
346 .trusted_config = TRUE,
349 /******************************************************************************/
350 /* These are the flags which are either variables or mainsection options,
351 so an address is needed for access, or are exported to local_scan. */
353 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
354 BOOL allow_domain_literals = FALSE;
355 BOOL allow_mx_to_ip = FALSE;
356 BOOL allow_utf8_domains = FALSE;
357 BOOL authentication_failed = FALSE;
359 BOOL bounce_return_body = TRUE;
360 BOOL bounce_return_message = TRUE;
361 BOOL check_rfc2047_length = TRUE;
362 BOOL commandline_checks_require_admin = FALSE;
364 #ifdef EXPERIMENTAL_DCC
365 BOOL dcc_direct_add_header = FALSE;
367 BOOL debug_store = FALSE;
368 BOOL delivery_date_remove = TRUE;
369 BOOL deliver_drop_privilege = FALSE;
370 #ifdef ENABLE_DISABLE_FSYNC
371 BOOL disable_fsync = FALSE;
373 BOOL disable_ipv6 = FALSE;
374 BOOL dns_csa_use_reverse = TRUE;
375 BOOL drop_cr = FALSE; /* No longer used */
377 BOOL envelope_to_remove = TRUE;
378 BOOL exim_gid_set = TRUE; /* This gid is always set */
379 BOOL exim_uid_set = TRUE; /* This uid is always set */
380 BOOL extract_addresses_remove_arguments = TRUE;
382 BOOL host_checking = FALSE;
383 BOOL host_lookup_deferred = FALSE;
384 BOOL host_lookup_failed = FALSE;
385 BOOL ignore_fromline_local = FALSE;
387 BOOL local_from_check = TRUE;
388 BOOL local_sender_retain = FALSE;
389 BOOL log_timezone = FALSE;
390 BOOL message_body_newlines = FALSE;
391 BOOL message_logs = TRUE;
393 BOOL message_smtputf8 = FALSE;
395 BOOL mua_wrapper = FALSE;
397 BOOL preserve_message_logs = FALSE;
398 BOOL print_topbitchars = FALSE;
399 BOOL prod_requires_admin = TRUE;
400 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
401 BOOL proxy_session = FALSE;
404 BOOL queue_list_requires_admin = TRUE;
405 BOOL queue_only = FALSE;
406 BOOL queue_only_load_latch = TRUE;
407 BOOL queue_only_override = TRUE;
408 BOOL queue_run_in_order = FALSE;
409 BOOL recipients_max_reject = FALSE;
410 BOOL return_path_remove = TRUE;
412 BOOL smtp_batched_input = FALSE;
413 BOOL sender_helo_dnssec = FALSE;
414 BOOL sender_host_dnssec = FALSE;
415 BOOL smtp_accept_keepalive = TRUE;
416 BOOL smtp_check_spool_space = TRUE;
417 BOOL smtp_enforce_sync = TRUE;
418 BOOL smtp_etrn_serialize = TRUE;
419 BOOL smtp_input = FALSE;
420 BOOL smtp_return_error_details = FALSE;
422 BOOL spf_result_guessed = FALSE;
424 BOOL split_spool_directory = FALSE;
425 BOOL spool_wireformat = FALSE;
426 #ifdef EXPERIMENTAL_SRS
427 BOOL srs_usehash = TRUE;
428 BOOL srs_usetimestamp = TRUE;
430 BOOL strict_acl_vars = FALSE;
431 BOOL strip_excess_angle_brackets = FALSE;
432 BOOL strip_trailing_dot = FALSE;
433 BOOL syslog_duplication = TRUE;
434 BOOL syslog_pid = TRUE;
435 BOOL syslog_timestamp = TRUE;
436 BOOL system_filter_gid_set = FALSE;
437 BOOL system_filter_uid_set = FALSE;
439 BOOL tcp_nodelay = TRUE;
440 BOOL write_rejectlog = TRUE;
442 /******************************************************************************/
444 header_line *acl_added_headers = NULL;
445 tree_node *acl_anchor = NULL;
446 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
447 NULL, NULL, NULL, NULL};
452 uschar *acl_not_smtp = NULL;
453 #ifdef WITH_CONTENT_SCAN
454 uschar *acl_not_smtp_mime = NULL;
456 uschar *acl_not_smtp_start = NULL;
457 uschar *acl_removed_headers = NULL;
458 uschar *acl_smtp_auth = NULL;
459 uschar *acl_smtp_connect = NULL;
460 uschar *acl_smtp_data = NULL;
462 uschar *acl_smtp_data_prdr = US"accept";
465 uschar *acl_smtp_dkim = NULL;
467 uschar *acl_smtp_etrn = NULL;
468 uschar *acl_smtp_expn = NULL;
469 uschar *acl_smtp_helo = NULL;
470 uschar *acl_smtp_mail = NULL;
471 uschar *acl_smtp_mailauth = NULL;
472 #ifdef WITH_CONTENT_SCAN
473 uschar *acl_smtp_mime = NULL;
475 uschar *acl_smtp_notquit = NULL;
476 uschar *acl_smtp_predata = NULL;
477 uschar *acl_smtp_quit = NULL;
478 uschar *acl_smtp_rcpt = NULL;
479 uschar *acl_smtp_starttls = NULL;
480 uschar *acl_smtp_vrfy = NULL;
482 tree_node *acl_var_c = NULL;
483 tree_node *acl_var_m = NULL;
484 uschar *acl_verify_message = NULL;
485 string_item *acl_warn_logged = NULL;
487 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
488 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
490 uschar *acl_wherenames[] = { US"RCPT",
515 uschar *acl_wherecodes[] = { US"550", /* RCPT */
517 US"550", /* PREDATA */
522 US"550", /* RCPT PRDR */
524 US"0", /* not SMTP; not relevant */
526 US"550", /* connect */
529 US"550", /* HELO/EHLO */
530 US"0", /* MAILAUTH; not relevant */
531 US"0", /* not SMTP; not relevant */
532 US"0", /* NOTQUIT; not relevant */
533 US"0", /* QUIT; not relevant */
534 US"550", /* STARTTLS */
536 US"0", /* delivery; not relevant */
537 US"0" /* unknown; not relevant */
540 uschar *add_environment = NULL;
541 address_item *addr_duplicate = NULL;
543 address_item address_defaults = {
548 .start_router = NULL,
553 .fallback_hosts = NULL,
558 .cc_local_part = NULL,
559 .lc_local_part = NULL,
564 .address_retry_key = NULL,
565 .domain_retry_key = NULL,
569 .user_message = NULL,
570 .onetime_parent = NULL,
571 .pipe_expandn = NULL,
572 .return_filename = NULL,
573 .self_hostname = NULL,
574 .shadow_message = NULL,
580 .ocsp = OCSP_NOT_REQ,
582 #ifdef EXPERIMENTAL_DSN_INFO
583 .smtp_greeting = NULL,
584 .helo_response = NULL,
586 .authenticator = NULL,
595 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
596 .localpart_cache = { 0 }, /* localpart_cache - ditto */
600 .basic_errno = ERRNO_UNKNOWNERROR,
603 .special_action = SPECIAL_NONE,
604 .transport_return = DEFER,
605 .prop = { /* fields that are propagated to children */
606 .address_data = NULL,
608 .localpart_data = NULL,
609 .errors_address = NULL,
610 .extra_headers = NULL,
611 .remove_headers = NULL,
612 #ifdef EXPERIMENTAL_SRS
615 .ignore_error = FALSE,
618 .utf8_downcvt = FALSE,
619 .utf8_downcvt_maybe = FALSE
624 uschar *address_file = NULL;
625 uschar *address_pipe = NULL;
626 tree_node *addresslist_anchor = NULL;
627 int addresslist_count = 0;
628 gid_t *admin_groups = NULL;
630 #ifdef EXPERIMENTAL_ARC
631 struct arc_set *arc_received = NULL;
632 int arc_received_instance = 0;
633 int arc_oldest_pass = 0;
634 const uschar *arc_state = NULL;
635 const uschar *arc_state_reason = NULL;
638 uschar *authenticated_fail_id = NULL;
639 uschar *authenticated_id = NULL;
640 uschar *authenticated_sender = NULL;
641 auth_instance *auths = NULL;
642 uschar *auth_advertise_hosts = US"*";
643 auth_instance auth_defaults = {
647 .options_block = NULL,
649 .advertise_condition = NULL,
650 .client_condition = NULL,
653 .set_client_id = NULL,
654 .mail_auth_condition = NULL,
655 .server_debug_string = NULL,
656 .server_condition = NULL,
662 uschar *auth_defer_msg = US"reason not recorded";
663 uschar *auth_defer_user_msg = US"";
664 uschar *auth_vars[AUTH_VARS];
666 #ifdef WITH_CONTENT_SCAN
667 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
668 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
672 uschar *base62_chars=
673 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
675 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
678 uschar *bi_command = NULL;
679 uschar *big_buffer = NULL;
680 int big_buffer_size = BIG_BUFFER_SIZE;
681 #ifdef EXPERIMENTAL_BRIGHTMAIL
682 uschar *bmi_alt_location = NULL;
683 uschar *bmi_base64_tracker_verdict = NULL;
684 uschar *bmi_base64_verdict = NULL;
685 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
688 uschar *bmi_verdicts = NULL;
690 int bsmtp_transaction_linecount = 0;
691 int body_8bitmime = 0;
692 int body_linecount = 0;
693 int body_zerocount = 0;
694 uschar *bounce_message_file = NULL;
695 uschar *bounce_message_text = NULL;
696 uschar *bounce_recipient = NULL;
697 int bounce_return_linesize_limit = 998;
698 int bounce_return_size_limit = 100*1024;
699 uschar *bounce_sender_authentication = NULL;
701 uschar *callout_address = NULL;
702 int callout_cache_domain_positive_expire = 7*24*60*60;
703 int callout_cache_domain_negative_expire = 3*60*60;
704 int callout_cache_positive_expire = 24*60*60;
705 int callout_cache_negative_expire = 2*60*60;
706 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
707 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
708 int check_log_inodes = 100;
709 int check_log_space = 10*1024; /* 10K Kbyte == 10MB */
710 int check_spool_inodes = 100;
711 int check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
713 uschar *chunking_advertise_hosts = US"*";
714 unsigned chunking_datasize = 0;
715 unsigned chunking_data_left = 0;
716 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
717 const pcre *regex_CHUNKING = NULL;
719 uschar *client_authenticator = NULL;
720 uschar *client_authenticated_id = NULL;
721 uschar *client_authenticated_sender = NULL;
722 int clmacro_count = 0;
723 uschar *clmacros[MAX_CLMACROS];
724 FILE *config_file = NULL;
725 const uschar *config_filename = NULL;
726 int config_lineno = 0;
727 #ifdef CONFIGURE_GROUP
728 gid_t config_gid = CONFIGURE_GROUP;
730 gid_t config_gid = 0;
732 uschar *config_main_filelist = US CONFIGURE_FILE
733 "\0<-----------Space to patch configure_filename->";
734 uschar *config_main_filename = NULL;
735 uschar *config_main_directory = NULL;
737 #ifdef CONFIGURE_OWNER
738 uid_t config_uid = CONFIGURE_OWNER;
740 uid_t config_uid = 0;
743 int connection_max_messages= -1;
744 uschar *continue_proxy_cipher = NULL;
745 uschar *continue_hostname = NULL;
746 uschar *continue_host_address = NULL;
747 int continue_sequence = 1;
748 uschar *continue_transport = NULL;
750 uschar *csa_status = NULL;
752 .callout_hold_only = FALSE, /* verify-only: normal delivery */
753 .delivery = FALSE, /* when to attempt */
754 .defer_pass = FALSE, /* on defer: spool locally */
755 .is_tls = FALSE, /* not a TLS conn yet */
756 .cctx = {.sock = -1}, /* open connection */
757 .nrcpt = 0, /* number of addresses */
760 uschar *daemon_smtp_port = US"smtp";
761 int daemon_startup_retries = 9;
762 int daemon_startup_sleep = 30;
764 #ifdef EXPERIMENTAL_DCC
765 uschar *dcc_header = NULL;
766 uschar *dcc_result = NULL;
767 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
768 uschar *dccifd_options = US"header";
772 FILE *debug_file = NULL;
773 int debug_notall[] = {
777 bit_table debug_options[] = { /* must be in alphabetical order */
781 BIT_TABLE(D, deliver),
785 BIT_TABLE(D, expand),
786 BIT_TABLE(D, filter),
787 BIT_TABLE(D, hints_lookup),
788 BIT_TABLE(D, host_lookup),
790 BIT_TABLE(D, interface),
793 BIT_TABLE(D, local_scan),
794 BIT_TABLE(D, lookup),
795 BIT_TABLE(D, memory),
797 BIT_TABLE(D, process_info),
798 BIT_TABLE(D, queue_run),
799 BIT_TABLE(D, receive),
800 BIT_TABLE(D, resolver),
802 BIT_TABLE(D, rewrite),
804 BIT_TABLE(D, timestamp),
806 BIT_TABLE(D, transport),
808 BIT_TABLE(D, verify),
810 int debug_options_count = nelem(debug_options);
812 unsigned int debug_selector = 0;
813 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
814 uschar *delay_warning_condition=
816 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
817 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
818 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
820 uschar *deliver_address_data = NULL;
821 int deliver_datafile = -1;
822 const uschar *deliver_domain = NULL;
823 uschar *deliver_domain_data = NULL;
824 const uschar *deliver_domain_orig = NULL;
825 const uschar *deliver_domain_parent = NULL;
826 time_t deliver_frozen_at = 0;
827 uschar *deliver_home = NULL;
828 const uschar *deliver_host = NULL;
829 const uschar *deliver_host_address = NULL;
830 int deliver_host_port = 0;
831 uschar *deliver_in_buffer = NULL;
832 ino_t deliver_inode = 0;
833 uschar *deliver_localpart = NULL;
834 uschar *deliver_localpart_data = NULL;
835 uschar *deliver_localpart_orig = NULL;
836 uschar *deliver_localpart_parent = NULL;
837 uschar *deliver_localpart_prefix = NULL;
838 uschar *deliver_localpart_suffix = NULL;
839 uschar *deliver_out_buffer = NULL;
840 int deliver_queue_load_max = -1;
841 address_item *deliver_recipients = NULL;
842 uschar *deliver_selectstring = NULL;
843 uschar *deliver_selectstring_sender = NULL;
846 unsigned dkim_collect_input = 0;
847 uschar *dkim_cur_signer = NULL;
848 int dkim_key_length = 0;
849 void *dkim_signatures = NULL;
850 uschar *dkim_signers = NULL;
851 uschar *dkim_signing_domain = NULL;
852 uschar *dkim_signing_selector = NULL;
853 uschar *dkim_verify_overall = NULL;
854 uschar *dkim_verify_signers = US"$dkim_signers";
855 uschar *dkim_verify_status = NULL;
856 uschar *dkim_verify_reason = NULL;
858 #ifdef EXPERIMENTAL_DMARC
859 uschar *dmarc_domain_policy = NULL;
860 uschar *dmarc_forensic_sender = NULL;
861 uschar *dmarc_history_file = NULL;
862 uschar *dmarc_status = NULL;
863 uschar *dmarc_status_text = NULL;
864 uschar *dmarc_tld_file = NULL;
865 uschar *dmarc_used_domain = NULL;
868 uschar *dns_again_means_nonexist = NULL;
869 int dns_csa_search_limit = 5;
870 int dns_cname_loops = 1;
872 int dns_dane_ok = -1;
874 uschar *dns_ipv4_lookup = NULL;
877 int dns_dnssec_ok = -1; /* <0 = not coerced */
878 uschar *dns_trust_aa = NULL;
879 int dns_use_edns0 = -1; /* <0 = not coerced */
880 uschar *dnslist_domain = NULL;
881 uschar *dnslist_matched = NULL;
882 uschar *dnslist_text = NULL;
883 uschar *dnslist_value = NULL;
884 tree_node *domainlist_anchor = NULL;
885 int domainlist_count = 0;
886 uschar *dsn_from = US DEFAULT_DSN_FROM;
888 int errno_quota = ERRNO_QUOTA;
889 uschar *errors_copy = NULL;
890 int error_handling = ERRORS_SENDER;
891 uschar *errors_reply_to = NULL;
892 int errors_sender_rc = EXIT_FAILURE;
893 #ifndef DISABLE_EVENT
894 uschar *event_action = NULL; /* expansion for delivery events */
895 uschar *event_data = NULL; /* auxiliary data variable for event */
896 int event_defer_errno = 0;
897 const uschar *event_name = NULL; /* event name variable */
901 gid_t exim_gid = EXIM_GID;
902 uschar *exim_path = US BIN_DIRECTORY "/exim"
903 "\0<---------------Space to patch exim_path->";
904 uid_t exim_uid = EXIM_UID;
905 int expand_level = 0; /* Nesting depth, indent for debug */
906 int expand_forbid = 0;
907 int expand_nlength[EXPAND_MAXN+1];
908 int expand_nmax = -1;
909 uschar *expand_nstring[EXPAND_MAXN+1];
910 uschar *expand_string_message;
911 uschar *extra_local_interfaces = NULL;
913 int fake_response = OK;
914 uschar *fake_response_text = US"Your message has been rejected but is "
915 "being kept for evaluation.\nIf it was a "
916 "legitimate message, it may still be "
917 "delivered to the target recipient(s).";
918 int filter_n[FILTER_VARIABLE_COUNT];
919 int filter_sn[FILTER_VARIABLE_COUNT];
920 int filter_test = FTEST_NONE;
921 uschar *filter_test_sfile = NULL;
922 uschar *filter_test_ufile = NULL;
923 uschar *filter_thisaddress = NULL;
924 int finduser_retries = 0;
925 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
926 uschar *freeze_tell = NULL;
927 uschar *freeze_tell_config = NULL;
928 uschar *fudged_queue_times = US"";
930 uschar *gecos_name = NULL;
931 uschar *gecos_pattern = NULL;
932 rewrite_rule *global_rewrite_rules = NULL;
934 volatile sig_atomic_t had_command_timeout = 0;
935 volatile sig_atomic_t had_command_sigterm = 0;
936 volatile sig_atomic_t had_data_timeout = 0;
937 volatile sig_atomic_t had_data_sigint = 0;
938 uschar *headers_charset = US HEADERS_CHARSET;
939 int header_insert_maxlen = 64 * 1024;
940 header_line *header_last = NULL;
941 header_line *header_list = NULL;
942 int header_maxsize = HEADER_MAXSIZE;
943 int header_line_maxsize = 0;
945 header_name header_names[] = {
946 /* name len allow_resent htype */
947 { US"bcc", 3, TRUE, htype_bcc },
948 { US"cc", 2, TRUE, htype_cc },
949 { US"date", 4, TRUE, htype_date },
950 { US"delivery-date", 13, FALSE, htype_delivery_date },
951 { US"envelope-to", 11, FALSE, htype_envelope_to },
952 { US"from", 4, TRUE, htype_from },
953 { US"message-id", 10, TRUE, htype_id },
954 { US"received", 8, FALSE, htype_received },
955 { US"reply-to", 8, FALSE, htype_reply_to },
956 { US"return-path", 11, FALSE, htype_return_path },
957 { US"sender", 6, TRUE, htype_sender },
958 { US"subject", 7, FALSE, htype_subject },
959 { US"to", 2, TRUE, htype_to }
962 int header_names_size = nelem(header_names);
964 uschar *helo_accept_junk_hosts = NULL;
965 uschar *helo_allow_chars = US"";
966 uschar *helo_lookup_domains = US"@ : @[]";
967 uschar *helo_try_verify_hosts = NULL;
968 uschar *helo_verify_hosts = NULL;
969 const uschar *hex_digits = CUS"0123456789abcdef";
970 uschar *hold_domains = NULL;
971 uschar *host_data = NULL;
972 uschar *host_lookup = NULL;
973 uschar *host_lookup_order = US"bydns:byaddr";
974 uschar *host_lookup_msg = US"";
976 uschar *host_number_string = NULL;
977 uschar *host_reject_connection = NULL;
978 tree_node *hostlist_anchor = NULL;
979 int hostlist_count = 0;
980 uschar *hosts_treat_as_local = NULL;
981 uschar *hosts_connection_nolog = NULL;
983 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
984 uschar *ignore_fromline_hosts = NULL;
985 int inetd_wait_timeout = -1;
986 uschar *initial_cwd = NULL;
987 uschar *interface_address = NULL;
988 int interface_port = -1;
989 uschar *iterate_item = NULL;
993 uschar *keep_environment = NULL;
995 int keep_malformed = 4*24*60*60; /* 4 days */
997 uschar *eldap_dn = NULL;
998 int load_average = -2;
999 uschar *local_from_prefix = NULL;
1000 uschar *local_from_suffix = NULL;
1003 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1005 uschar *local_interfaces = US"0.0.0.0";
1008 #ifdef HAVE_LOCAL_SCAN
1009 uschar *local_scan_data = NULL;
1010 int local_scan_timeout = 5*60;
1012 gid_t local_user_gid = (gid_t)(-1);
1013 uid_t local_user_uid = (uid_t)(-1);
1015 tree_node *localpartlist_anchor= NULL;
1016 int localpartlist_count = 0;
1017 uschar *log_buffer = NULL;
1019 int log_default[] = { /* for initializing log_selector */
1020 Li_acl_warn_skipped,
1021 Li_connection_reject,
1026 Li_host_lookup_failed,
1027 Li_lost_incoming_connection,
1028 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1032 Li_sender_verify_fail,
1035 Li_smtp_confirmation,
1036 Li_tls_certificate_verified,
1041 uschar *log_file_path = US LOG_FILE_PATH
1042 "\0<--------------Space to patch log_file_path->";
1044 int log_notall[] = {
1047 bit_table log_options[] = { /* must be in alphabetical order */
1048 BIT_TABLE(L, 8bitmime),
1049 BIT_TABLE(L, acl_warn_skipped),
1050 BIT_TABLE(L, address_rewrite),
1052 BIT_TABLE(L, all_parents),
1053 BIT_TABLE(L, arguments),
1054 BIT_TABLE(L, connection_reject),
1055 BIT_TABLE(L, delay_delivery),
1056 BIT_TABLE(L, deliver_time),
1057 BIT_TABLE(L, delivery_size),
1058 #ifndef DISABLE_DKIM
1060 BIT_TABLE(L, dkim_verbose),
1062 BIT_TABLE(L, dnslist_defer),
1063 BIT_TABLE(L, dnssec),
1065 BIT_TABLE(L, host_lookup_failed),
1066 BIT_TABLE(L, ident_timeout),
1067 BIT_TABLE(L, incoming_interface),
1068 BIT_TABLE(L, incoming_port),
1069 BIT_TABLE(L, lost_incoming_connection),
1070 BIT_TABLE(L, millisec),
1071 BIT_TABLE(L, outgoing_interface),
1072 BIT_TABLE(L, outgoing_port),
1074 BIT_TABLE(L, pipelining),
1075 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1076 BIT_TABLE(L, proxy),
1078 BIT_TABLE(L, queue_run),
1079 BIT_TABLE(L, queue_time),
1080 BIT_TABLE(L, queue_time_overall),
1081 BIT_TABLE(L, receive_time),
1082 BIT_TABLE(L, received_recipients),
1083 BIT_TABLE(L, received_sender),
1084 BIT_TABLE(L, rejected_header),
1085 { US"rejected_headers", Li_rejected_header },
1086 BIT_TABLE(L, retry_defer),
1087 BIT_TABLE(L, return_path_on_delivery),
1088 BIT_TABLE(L, sender_on_delivery),
1089 BIT_TABLE(L, sender_verify_fail),
1090 BIT_TABLE(L, size_reject),
1091 BIT_TABLE(L, skip_delivery),
1092 BIT_TABLE(L, smtp_confirmation),
1093 BIT_TABLE(L, smtp_connection),
1094 BIT_TABLE(L, smtp_incomplete_transaction),
1095 BIT_TABLE(L, smtp_mailauth),
1096 BIT_TABLE(L, smtp_no_mail),
1097 BIT_TABLE(L, smtp_protocol_error),
1098 BIT_TABLE(L, smtp_syntax_error),
1099 BIT_TABLE(L, subject),
1100 BIT_TABLE(L, tls_certificate_verified),
1101 BIT_TABLE(L, tls_cipher),
1102 BIT_TABLE(L, tls_peerdn),
1103 BIT_TABLE(L, tls_sni),
1104 BIT_TABLE(L, unknown_in_list),
1106 int log_options_count = nelem(log_options);
1108 int log_reject_target = 0;
1109 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1110 uschar *log_selector_string = NULL;
1111 FILE *log_stderr = NULL;
1112 uschar *login_sender_address = NULL;
1113 uschar *lookup_dnssec_authenticated = NULL;
1114 int lookup_open_max = 25;
1115 uschar *lookup_value = NULL;
1117 macro_item *macros_user = NULL;
1118 uschar *mailstore_basename = NULL;
1119 #ifdef WITH_CONTENT_SCAN
1120 uschar *malware_name = NULL; /* Virus Name */
1122 int max_received_linelength= 0;
1123 int max_username_length = 0;
1124 int message_age = 0;
1125 uschar *message_body = NULL;
1126 uschar *message_body_end = NULL;
1127 int message_body_size = 0;
1128 int message_body_visible = 500;
1129 int message_ended = END_NOTSTARTED;
1130 uschar *message_headers = NULL;
1132 uschar *message_id_domain = NULL;
1133 uschar *message_id_text = NULL;
1134 struct timeval message_id_tv = { 0, 0 };
1135 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1136 uschar *message_id_external;
1137 int message_linecount = 0;
1138 int message_size = 0;
1139 uschar *message_size_limit = US"50M";
1141 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1143 uschar message_subdir[2] = { 0, 0 };
1144 uschar *message_reference = NULL;
1146 /* MIME ACL expandables */
1147 #ifdef WITH_CONTENT_SCAN
1148 int mime_anomaly_level = 0;
1149 const uschar *mime_anomaly_text = NULL;
1150 uschar *mime_boundary = NULL;
1151 uschar *mime_charset = NULL;
1152 uschar *mime_content_description = NULL;
1153 uschar *mime_content_disposition = NULL;
1154 uschar *mime_content_id = NULL;
1155 unsigned int mime_content_size = 0;
1156 uschar *mime_content_transfer_encoding = NULL;
1157 uschar *mime_content_type = NULL;
1158 uschar *mime_decoded_filename = NULL;
1159 uschar *mime_filename = NULL;
1160 int mime_is_multipart = 0;
1161 int mime_is_coverletter = 0;
1162 int mime_is_rfc822 = 0;
1163 int mime_part_count = -1;
1166 uid_t *never_users = NULL;
1168 const int on = 1; /* for setsockopt */
1171 uid_t original_euid;
1172 gid_t originator_gid;
1173 uschar *originator_login = NULL;
1174 uschar *originator_name = NULL;
1175 uid_t originator_uid;
1176 uschar *override_local_interfaces = NULL;
1177 uschar *override_pid_file_path = NULL;
1179 uschar *percent_hack_domains = NULL;
1180 uschar *pid_file_path = US PID_FILE_PATH
1181 "\0<--------------Space to patch pid_file_path->";
1182 uschar *pipelining_advertise_hosts = US"*";
1183 uschar *primary_hostname = NULL;
1184 uschar process_info[PROCESS_INFO_SIZE];
1185 int process_info_len = 0;
1186 uschar *process_log_path = NULL;
1188 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1189 uschar *hosts_proxy = US"";
1190 uschar *proxy_external_address = US"";
1191 int proxy_external_port = 0;
1192 uschar *proxy_local_address = US"";
1193 int proxy_local_port = 0;
1196 uschar *prvscheck_address = NULL;
1197 uschar *prvscheck_keynum = NULL;
1198 uschar *prvscheck_result = NULL;
1201 const uschar *qualify_domain_recipient = NULL;
1202 uschar *qualify_domain_sender = NULL;
1203 uschar *queue_domains = NULL;
1204 int queue_interval = -1;
1205 uschar *queue_name = US"";
1206 uschar *queue_only_file = NULL;
1207 int queue_only_load = -1;
1208 uschar *queue_run_max = US"5";
1209 pid_t queue_run_pid = (pid_t)0;
1210 int queue_run_pipe = -1;
1211 uschar *queue_smtp_domains = NULL;
1213 unsigned int random_seed = 0;
1214 tree_node *ratelimiters_cmd = NULL;
1215 tree_node *ratelimiters_conn = NULL;
1216 tree_node *ratelimiters_mail = NULL;
1217 uschar *raw_active_hostname = NULL;
1218 uschar *raw_sender = NULL;
1219 uschar **raw_recipients = NULL;
1220 int raw_recipients_count = 0;
1223 int rcpt_fail_count = 0;
1224 int rcpt_defer_count = 0;
1227 int receive_linecount = 0;
1228 int receive_messagecount = 0;
1229 int receive_timeout = 0;
1230 int received_count = 0;
1231 uschar *received_for = NULL;
1233 /* This is the default text for Received headers generated by Exim. The
1234 date will be automatically added on the end. */
1236 uschar *received_header_text = US
1238 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1239 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1240 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1241 "by $primary_hostname "
1242 "${if def:received_protocol {with $received_protocol}} "
1244 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1246 "(Exim $version_number)\n\t"
1247 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1248 "id $message_exim_id"
1249 "${if def:received_for {\n\tfor $received_for}}"
1250 "\0<---------------Space to patch received_header_text->";
1252 int received_headers_max = 30;
1253 uschar *received_protocol = NULL;
1254 struct timeval received_time = { 0, 0 };
1255 struct timeval received_time_taken = { 0, 0 };
1256 uschar *recipient_data = NULL;
1257 uschar *recipient_unqualified_hosts = NULL;
1258 uschar *recipient_verify_failure = NULL;
1259 int recipients_count = 0;
1260 recipient_item *recipients_list = NULL;
1261 int recipients_list_max = 0;
1262 int recipients_max = 0;
1263 const pcre *regex_AUTH = NULL;
1264 const pcre *regex_check_dns_names = NULL;
1265 const pcre *regex_From = NULL;
1266 const pcre *regex_IGNOREQUOTA = NULL;
1267 const pcre *regex_PIPELINING = NULL;
1268 const pcre *regex_SIZE = NULL;
1269 const pcre *regex_ismsgid = NULL;
1270 const pcre *regex_smtp_code = NULL;
1271 uschar *regex_vars[REGEX_VARS];
1272 #ifdef WHITELIST_D_MACROS
1273 const pcre *regex_whitelisted_macro = NULL;
1275 #ifdef WITH_CONTENT_SCAN
1276 uschar *regex_match_string = NULL;
1278 int remote_delivery_count = 0;
1279 int remote_max_parallel = 2;
1280 uschar *remote_sort_domains = NULL;
1281 int retry_data_expire = 7*24*60*60;
1282 int retry_interval_max = 24*60*60;
1283 int retry_maximum_timeout = 0; /* set from retry config */
1284 retry_config *retries = NULL;
1285 uschar *return_path = NULL;
1286 int rewrite_existflags = 0;
1287 uschar *rfc1413_hosts = US"@[]";
1288 int rfc1413_query_timeout = 0;
1289 uid_t root_gid = ROOT_GID;
1290 uid_t root_uid = ROOT_UID;
1292 router_instance *routers = NULL;
1293 router_instance router_defaults = {
1297 .options_block = NULL,
1298 .driver_name = NULL,
1300 .address_data = NULL,
1301 #ifdef EXPERIMENTAL_BRIGHTMAIL
1304 .cannot_route_message = NULL,
1306 .current_directory = NULL,
1307 .debug_string = NULL,
1312 .expand_more = NULL,
1313 .expand_unseen = NULL,
1314 .extra_headers = NULL,
1315 .fallback_hosts = NULL,
1316 .home_directory = NULL,
1317 .ignore_target_hosts = NULL,
1318 .local_parts = NULL,
1319 .pass_router_name = NULL,
1321 .redirect_router_name = NULL,
1322 .remove_headers = NULL,
1323 .require_files = NULL,
1324 .router_home_directory = NULL,
1328 .translate_ip_address = NULL,
1329 .transport_name = NULL,
1331 .address_test = TRUE,
1332 #ifdef EXPERIMENTAL_BRIGHTMAIL
1333 .bmi_deliver_alternate = FALSE,
1334 .bmi_deliver_default = FALSE,
1335 .bmi_dont_deliver = FALSE,
1338 .caseful_local_part = FALSE,
1339 .check_local_user = FALSE,
1340 .disable_logging = FALSE,
1341 .fail_verify_recipient = FALSE,
1342 .fail_verify_sender = FALSE,
1344 .initgroups = FALSE,
1345 .log_as_local = TRUE_UNSET,
1347 .pass_on_timeout = FALSE,
1348 .prefix_optional = FALSE,
1350 .retry_use_local_part = TRUE_UNSET,
1351 .same_domain_copy_routing = FALSE,
1352 .self_rewrite = FALSE,
1353 .suffix_optional = FALSE,
1354 .verify_only = FALSE,
1355 .verify_recipient = TRUE,
1356 .verify_sender = TRUE,
1359 .dsn_lasthop = FALSE,
1361 .self_code = self_freeze,
1365 .fallback_hostlist = NULL,
1367 .pass_router = NULL,
1368 .redirect_router = NULL,
1370 .dnssec = { NULL, NULL }, /* dnssec_domains {require,request} */
1373 uschar *router_name = NULL;
1375 ip_address_item *running_interfaces = NULL;
1377 /* This is a weird one. The following string gets patched in the binary by the
1378 script that sets up a copy of Exim for running in the test harness. It seems
1379 that compilers are now clever, and share constant strings if they can.
1380 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1381 make use of the end of this string in order to save space. So the patching then
1382 wrecks this. We defeat this optimization by adding some additional characters
1383 onto the end of the string. */
1385 uschar *running_status = US">>>running<<<" "\0EXTRA";
1389 uschar *search_error_message = NULL;
1390 uschar *self_hostname = NULL;
1391 uschar *sender_address = NULL;
1392 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1393 uschar *sender_address_data = NULL;
1394 uschar *sender_address_unrewritten = NULL;
1395 uschar *sender_data = NULL;
1396 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1397 uschar *sender_fullhost = NULL;
1398 uschar *sender_helo_name = NULL;
1399 uschar **sender_host_aliases = &no_aliases;
1400 uschar *sender_host_address = NULL;
1401 uschar *sender_host_authenticated = NULL;
1402 uschar *sender_host_auth_pubname = NULL;
1403 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1404 uschar *sender_host_name = NULL;
1405 int sender_host_port = 0;
1406 uschar *sender_ident = NULL;
1407 uschar *sender_rate = NULL;
1408 uschar *sender_rate_limit = NULL;
1409 uschar *sender_rate_period = NULL;
1410 uschar *sender_rcvhost = NULL;
1411 uschar *sender_unqualified_hosts = NULL;
1412 uschar *sender_verify_failure = NULL;
1413 address_item *sender_verified_list = NULL;
1414 address_item *sender_verified_failed = NULL;
1415 int sender_verified_rc = -1;
1416 uschar *sending_ip_address = NULL;
1417 int sending_port = -1;
1418 SIGNAL_BOOL sigalrm_seen = FALSE;
1419 uschar **sighup_argv = NULL;
1420 int slow_lookup_log = 0; /* millisecs, zero disables */
1421 int smtp_accept_count = 0;
1422 int smtp_accept_max = 20;
1423 int smtp_accept_max_nonmail= 10;
1424 uschar *smtp_accept_max_nonmail_hosts = US"*";
1425 int smtp_accept_max_per_connection = 1000;
1426 uschar *smtp_accept_max_per_host = NULL;
1427 int smtp_accept_queue = 0;
1428 int smtp_accept_queue_per_connection = 10;
1429 int smtp_accept_reserve = 0;
1430 uschar *smtp_active_hostname = NULL;
1431 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1432 "Exim $version_number $tod_full"
1433 "\0<---------------Space to patch smtp_banner->";
1434 int smtp_ch_index = 0;
1435 uschar *smtp_cmd_argument = NULL;
1436 uschar *smtp_cmd_buffer = NULL;
1437 struct timeval smtp_connection_start = {0,0};
1438 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1439 int smtp_connect_backlog = 20;
1440 double smtp_delay_mail = 0.0;
1441 double smtp_delay_rcpt = 0.0;
1442 FILE *smtp_in = NULL;
1443 int smtp_load_reserve = -1;
1444 int smtp_mailcmd_count = 0;
1445 FILE *smtp_out = NULL;
1446 uschar *smtp_etrn_command = NULL;
1447 int smtp_max_synprot_errors= 3;
1448 int smtp_max_unknown_commands = 3;
1449 uschar *smtp_notquit_reason = NULL;
1450 uschar *smtp_ratelimit_hosts = NULL;
1451 uschar *smtp_ratelimit_mail = NULL;
1452 uschar *smtp_ratelimit_rcpt = NULL;
1453 uschar *smtp_read_error = US"";
1454 int smtp_receive_timeout = 5*60;
1455 uschar *smtp_receive_timeout_s = NULL;
1456 uschar *smtp_reserve_hosts = NULL;
1457 int smtp_rlm_base = 0;
1458 double smtp_rlm_factor = 0.0;
1459 int smtp_rlm_limit = 0;
1460 int smtp_rlm_threshold = INT_MAX;
1461 int smtp_rlr_base = 0;
1462 double smtp_rlr_factor = 0.0;
1463 int smtp_rlr_limit = 0;
1464 int smtp_rlr_threshold = INT_MAX;
1465 unsigned smtp_peer_options = 0;
1466 unsigned smtp_peer_options_wrap= 0;
1468 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1471 #ifdef WITH_CONTENT_SCAN
1472 uschar *spamd_address = US"127.0.0.1 783";
1473 uschar *spam_bar = NULL;
1474 uschar *spam_report = NULL;
1475 uschar *spam_action = NULL;
1476 uschar *spam_score = NULL;
1477 uschar *spam_score_int = NULL;
1480 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1481 uschar *spf_header_comment = NULL;
1482 uschar *spf_received = NULL;
1483 uschar *spf_result = NULL;
1484 uschar *spf_smtp_comment = NULL;
1487 FILE *spool_data_file = NULL;
1488 uschar *spool_directory = US SPOOL_DIRECTORY
1489 "\0<--------------Space to patch spool_directory->";
1490 #ifdef EXPERIMENTAL_SRS
1491 uschar *srs_config = NULL;
1492 uschar *srs_db_address = NULL;
1493 uschar *srs_db_key = NULL;
1494 int srs_hashlength = 6;
1495 int srs_hashmin = -1;
1496 int srs_maxage = 31;
1497 uschar *srs_orig_recipient = NULL;
1498 uschar *srs_orig_sender = NULL;
1499 uschar *srs_recipient = NULL;
1500 uschar *srs_secrets = NULL;
1501 uschar *srs_status = NULL;
1503 int string_datestamp_offset= -1;
1504 int string_datestamp_length= 0;
1505 int string_datestamp_type = -1;
1506 uschar *submission_domain = NULL;
1507 uschar *submission_name = NULL;
1508 int syslog_facility = LOG_MAIL;
1509 uschar *syslog_processname = US"exim";
1510 uschar *system_filter = NULL;
1512 uschar *system_filter_directory_transport = NULL;
1513 uschar *system_filter_file_transport = NULL;
1514 uschar *system_filter_pipe_transport = NULL;
1515 uschar *system_filter_reply_transport = NULL;
1517 gid_t system_filter_gid = 0;
1518 uid_t system_filter_uid = (uid_t)-1;
1520 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1521 int tcp_out_fastopen = 0;
1522 #ifdef USE_TCP_WRAPPERS
1523 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1525 int test_harness_load_avg = 0;
1526 int thismessage_size_limit = 0;
1527 int timeout_frozen_after = 0;
1529 transport_instance *transports = NULL;
1531 transport_instance transport_defaults = {
1535 .options_block = NULL,
1536 .driver_name = NULL,
1541 .current_dir = NULL,
1542 .expand_multi_domain = NULL,
1543 .multi_domain = TRUE,
1544 .overrides_hosts = FALSE,
1545 .max_addresses = 100,
1546 .connection_max_messages = 500,
1547 .deliver_as_creator = FALSE,
1548 .disable_logging = FALSE,
1549 .initgroups = FALSE,
1556 .warn_message = NULL,
1558 .shadow_condition = NULL,
1559 .filter_command = NULL,
1560 .add_headers = NULL,
1561 .remove_headers = NULL,
1562 .return_path = NULL,
1563 .debug_string = NULL,
1564 .max_parallel = NULL,
1565 .message_size_limit = NULL,
1566 .headers_rewrite = NULL,
1567 .rewrite_rules = NULL,
1568 .rewrite_existflags = 0,
1569 .filter_timeout = 300,
1571 .delivery_date_add = FALSE,
1572 .envelope_to_add = FALSE,
1573 .headers_only = FALSE,
1574 .rcpt_include_affixes = FALSE,
1575 .return_path_add = FALSE,
1576 .return_output = FALSE,
1577 .return_fail_output = FALSE,
1578 .log_output = FALSE,
1579 .log_fail_output = FALSE,
1580 .log_defer_output = FALSE,
1581 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1582 1 nor 0 so can detect unset */
1583 #ifndef DISABLE_EVENT
1584 .event_action = NULL
1588 int transport_count;
1589 uschar *transport_name = NULL;
1590 int transport_newlines;
1591 const uschar **transport_filter_argv = NULL;
1592 int transport_filter_timeout;
1593 int transport_write_timeout= 0;
1595 tree_node *tree_dns_fails = NULL;
1596 tree_node *tree_duplicates = NULL;
1597 tree_node *tree_nonrecipients = NULL;
1598 tree_node *tree_unusable = NULL;
1600 gid_t *trusted_groups = NULL;
1601 uid_t *trusted_users = NULL;
1602 uschar *timezone_string = US TIMEZONE_DEFAULT;
1604 uschar *unknown_login = NULL;
1605 uschar *unknown_username = NULL;
1606 uschar *untrusted_set_sender = NULL;
1608 /* A regex for matching a "From_" line in an incoming message, in the form
1610 From ph10 Fri Jan 5 12:35 GMT 1996
1612 which the "mail" commands send to the MTA (undocumented, of course), or in
1615 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1617 which is apparently used by some UUCPs, despite it not being in RFC 976.
1618 Because of variations in time formats, just match up to the minutes. That
1619 should be sufficient. Examples have been seen of time fields like 12:1:03,
1620 so just require one digit for hours and minutes. The weekday is also absent
1623 uschar *uucp_from_pattern = US
1624 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1625 "(?:" /* Non-extracting bracket */
1626 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1627 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1628 ")" /* End alternation */
1629 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1631 uschar *uucp_from_sender = US"$1";
1633 uschar *verify_mode = NULL;
1634 uschar *version_copyright =
1635 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1636 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1637 uschar *version_date = US"?";
1638 uschar *version_cnumber = US"????";
1639 uschar *version_string = US"?";
1641 uschar *warn_message_file = NULL;
1642 int warning_count = 0;
1643 uschar *warnmsg_delay = NULL;
1644 uschar *warnmsg_recipients = NULL;
1647 /* End of globals.c */