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 .running_in_test_harness = FALSE,
320 .search_find_defer = FALSE,
321 .sender_address_forced = FALSE,
322 .sender_host_notsocket = FALSE,
323 .sender_host_unknown = FALSE,
324 .sender_local = FALSE,
325 .sender_name_forced = FALSE,
326 .sender_set_untrusted = FALSE,
327 .smtp_authenticated = FALSE,
328 #ifdef EXPERIMENTAL_PIPE_CONNECT
329 .smtp_in_early_pipe_advertised = FALSE,
330 .smtp_in_early_pipe_no_auth = FALSE,
331 .smtp_in_early_pipe_used = FALSE,
333 .smtp_in_pipelining_advertised = FALSE,
334 .smtp_in_pipelining_used = FALSE,
335 .spool_file_wireformat = FALSE,
336 .submission_mode = FALSE,
337 .suppress_local_fixups = FALSE,
338 .suppress_local_fixups_default = FALSE,
339 .synchronous_delivery = FALSE,
340 .system_filtering = FALSE,
342 .tcp_fastopen_ok = FALSE,
343 .tcp_in_fastopen = FALSE,
344 .tcp_in_fastopen_data = FALSE,
345 .tcp_in_fastopen_logged = FALSE,
346 .tcp_out_fastopen_logged= FALSE,
347 .timestamps_utc = FALSE,
348 .transport_filter_timed_out = FALSE,
349 .trusted_caller = FALSE,
350 .trusted_config = TRUE,
353 /******************************************************************************/
354 /* These are the flags which are either variables or mainsection options,
355 so an address is needed for access, or are exported to local_scan. */
357 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
358 BOOL allow_domain_literals = FALSE;
359 BOOL allow_mx_to_ip = FALSE;
360 BOOL allow_utf8_domains = FALSE;
361 BOOL authentication_failed = FALSE;
363 BOOL bounce_return_body = TRUE;
364 BOOL bounce_return_message = TRUE;
365 BOOL check_rfc2047_length = TRUE;
366 BOOL commandline_checks_require_admin = FALSE;
368 #ifdef EXPERIMENTAL_DCC
369 BOOL dcc_direct_add_header = FALSE;
371 BOOL debug_store = FALSE;
372 BOOL delivery_date_remove = TRUE;
373 BOOL deliver_drop_privilege = FALSE;
374 #ifdef ENABLE_DISABLE_FSYNC
375 BOOL disable_fsync = FALSE;
377 BOOL disable_ipv6 = FALSE;
378 BOOL dns_csa_use_reverse = TRUE;
379 BOOL drop_cr = FALSE; /* No longer used */
381 BOOL envelope_to_remove = TRUE;
382 BOOL exim_gid_set = TRUE; /* This gid is always set */
383 BOOL exim_uid_set = TRUE; /* This uid is always set */
384 BOOL extract_addresses_remove_arguments = TRUE;
386 BOOL host_checking = FALSE;
387 BOOL host_lookup_deferred = FALSE;
388 BOOL host_lookup_failed = FALSE;
389 BOOL ignore_fromline_local = FALSE;
391 BOOL local_from_check = TRUE;
392 BOOL local_sender_retain = FALSE;
393 BOOL log_timezone = FALSE;
394 BOOL message_body_newlines = FALSE;
395 BOOL message_logs = TRUE;
397 BOOL message_smtputf8 = FALSE;
399 BOOL mua_wrapper = FALSE;
401 BOOL preserve_message_logs = FALSE;
402 BOOL print_topbitchars = FALSE;
403 BOOL prod_requires_admin = TRUE;
404 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
405 BOOL proxy_session = FALSE;
408 BOOL queue_list_requires_admin = TRUE;
409 BOOL queue_only = FALSE;
410 BOOL queue_only_load_latch = TRUE;
411 BOOL queue_only_override = TRUE;
412 BOOL queue_run_in_order = FALSE;
413 BOOL recipients_max_reject = FALSE;
414 BOOL return_path_remove = TRUE;
416 BOOL smtp_batched_input = FALSE;
417 BOOL sender_helo_dnssec = FALSE;
418 BOOL sender_host_dnssec = FALSE;
419 BOOL smtp_accept_keepalive = TRUE;
420 BOOL smtp_check_spool_space = TRUE;
421 BOOL smtp_enforce_sync = TRUE;
422 BOOL smtp_etrn_serialize = TRUE;
423 BOOL smtp_input = FALSE;
424 BOOL smtp_return_error_details = FALSE;
426 BOOL spf_result_guessed = FALSE;
428 BOOL split_spool_directory = FALSE;
429 BOOL spool_wireformat = FALSE;
430 #ifdef EXPERIMENTAL_SRS
431 BOOL srs_usehash = TRUE;
432 BOOL srs_usetimestamp = TRUE;
434 BOOL strict_acl_vars = FALSE;
435 BOOL strip_excess_angle_brackets = FALSE;
436 BOOL strip_trailing_dot = FALSE;
437 BOOL syslog_duplication = TRUE;
438 BOOL syslog_pid = TRUE;
439 BOOL syslog_timestamp = TRUE;
440 BOOL system_filter_gid_set = FALSE;
441 BOOL system_filter_uid_set = FALSE;
443 BOOL tcp_nodelay = TRUE;
444 BOOL write_rejectlog = TRUE;
446 /******************************************************************************/
448 header_line *acl_added_headers = NULL;
449 tree_node *acl_anchor = NULL;
450 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
451 NULL, NULL, NULL, NULL};
456 uschar *acl_not_smtp = NULL;
457 #ifdef WITH_CONTENT_SCAN
458 uschar *acl_not_smtp_mime = NULL;
460 uschar *acl_not_smtp_start = NULL;
461 uschar *acl_removed_headers = NULL;
462 uschar *acl_smtp_auth = NULL;
463 uschar *acl_smtp_connect = NULL;
464 uschar *acl_smtp_data = NULL;
466 uschar *acl_smtp_data_prdr = US"accept";
469 uschar *acl_smtp_dkim = NULL;
471 uschar *acl_smtp_etrn = NULL;
472 uschar *acl_smtp_expn = NULL;
473 uschar *acl_smtp_helo = NULL;
474 uschar *acl_smtp_mail = NULL;
475 uschar *acl_smtp_mailauth = NULL;
476 #ifdef WITH_CONTENT_SCAN
477 uschar *acl_smtp_mime = NULL;
479 uschar *acl_smtp_notquit = NULL;
480 uschar *acl_smtp_predata = NULL;
481 uschar *acl_smtp_quit = NULL;
482 uschar *acl_smtp_rcpt = NULL;
483 uschar *acl_smtp_starttls = NULL;
484 uschar *acl_smtp_vrfy = NULL;
486 tree_node *acl_var_c = NULL;
487 tree_node *acl_var_m = NULL;
488 uschar *acl_verify_message = NULL;
489 string_item *acl_warn_logged = NULL;
491 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
492 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
494 uschar *acl_wherenames[] = { US"RCPT",
519 uschar *acl_wherecodes[] = { US"550", /* RCPT */
521 US"550", /* PREDATA */
526 US"550", /* RCPT PRDR */
528 US"0", /* not SMTP; not relevant */
530 US"550", /* connect */
533 US"550", /* HELO/EHLO */
534 US"0", /* MAILAUTH; not relevant */
535 US"0", /* not SMTP; not relevant */
536 US"0", /* NOTQUIT; not relevant */
537 US"0", /* QUIT; not relevant */
538 US"550", /* STARTTLS */
540 US"0", /* delivery; not relevant */
541 US"0" /* unknown; not relevant */
544 uschar *add_environment = NULL;
545 address_item *addr_duplicate = NULL;
547 address_item address_defaults = {
552 .start_router = NULL,
557 .fallback_hosts = NULL,
562 .cc_local_part = NULL,
563 .lc_local_part = NULL,
568 .address_retry_key = NULL,
569 .domain_retry_key = NULL,
573 .user_message = NULL,
574 .onetime_parent = NULL,
575 .pipe_expandn = NULL,
576 .return_filename = NULL,
577 .self_hostname = NULL,
578 .shadow_message = NULL,
584 .ocsp = OCSP_NOT_REQ,
586 #ifdef EXPERIMENTAL_DSN_INFO
587 .smtp_greeting = NULL,
588 .helo_response = NULL,
590 .authenticator = NULL,
599 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
600 .localpart_cache = { 0 }, /* localpart_cache - ditto */
604 .basic_errno = ERRNO_UNKNOWNERROR,
607 .special_action = SPECIAL_NONE,
608 .transport_return = DEFER,
609 .prop = { /* fields that are propagated to children */
610 .address_data = NULL,
612 .localpart_data = NULL,
613 .errors_address = NULL,
614 .extra_headers = NULL,
615 .remove_headers = NULL,
616 #ifdef EXPERIMENTAL_SRS
619 .ignore_error = FALSE,
622 .utf8_downcvt = FALSE,
623 .utf8_downcvt_maybe = FALSE
628 uschar *address_file = NULL;
629 uschar *address_pipe = NULL;
630 tree_node *addresslist_anchor = NULL;
631 int addresslist_count = 0;
632 gid_t *admin_groups = NULL;
634 #ifdef EXPERIMENTAL_ARC
635 struct arc_set *arc_received = NULL;
636 int arc_received_instance = 0;
637 int arc_oldest_pass = 0;
638 const uschar *arc_state = NULL;
639 const uschar *arc_state_reason = NULL;
642 uschar *authenticated_fail_id = NULL;
643 uschar *authenticated_id = NULL;
644 uschar *authenticated_sender = NULL;
645 auth_instance *auths = NULL;
646 uschar *auth_advertise_hosts = US"*";
647 auth_instance auth_defaults = {
651 .options_block = NULL,
653 .advertise_condition = NULL,
654 .client_condition = NULL,
657 .set_client_id = NULL,
658 .mail_auth_condition = NULL,
659 .server_debug_string = NULL,
660 .server_condition = NULL,
666 uschar *auth_defer_msg = US"reason not recorded";
667 uschar *auth_defer_user_msg = US"";
668 uschar *auth_vars[AUTH_VARS];
670 #ifdef WITH_CONTENT_SCAN
671 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
672 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
676 uschar *base62_chars=
677 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
679 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
682 uschar *bi_command = NULL;
683 uschar *big_buffer = NULL;
684 int big_buffer_size = BIG_BUFFER_SIZE;
685 #ifdef EXPERIMENTAL_BRIGHTMAIL
686 uschar *bmi_alt_location = NULL;
687 uschar *bmi_base64_tracker_verdict = NULL;
688 uschar *bmi_base64_verdict = NULL;
689 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
692 uschar *bmi_verdicts = NULL;
694 int bsmtp_transaction_linecount = 0;
695 int body_8bitmime = 0;
696 int body_linecount = 0;
697 int body_zerocount = 0;
698 uschar *bounce_message_file = NULL;
699 uschar *bounce_message_text = NULL;
700 uschar *bounce_recipient = NULL;
701 int bounce_return_linesize_limit = 998;
702 int bounce_return_size_limit = 100*1024;
703 uschar *bounce_sender_authentication = NULL;
705 uschar *callout_address = NULL;
706 int callout_cache_domain_positive_expire = 7*24*60*60;
707 int callout_cache_domain_negative_expire = 3*60*60;
708 int callout_cache_positive_expire = 24*60*60;
709 int callout_cache_negative_expire = 2*60*60;
710 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
711 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
712 int check_log_inodes = 100;
713 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
714 int check_spool_inodes = 100;
715 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
717 uschar *chunking_advertise_hosts = US"*";
718 unsigned chunking_datasize = 0;
719 unsigned chunking_data_left = 0;
720 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
721 const pcre *regex_CHUNKING = NULL;
723 uschar *client_authenticator = NULL;
724 uschar *client_authenticated_id = NULL;
725 uschar *client_authenticated_sender = NULL;
726 int clmacro_count = 0;
727 uschar *clmacros[MAX_CLMACROS];
728 FILE *config_file = NULL;
729 const uschar *config_filename = NULL;
730 int config_lineno = 0;
731 #ifdef CONFIGURE_GROUP
732 gid_t config_gid = CONFIGURE_GROUP;
734 gid_t config_gid = 0;
736 uschar *config_main_filelist = US CONFIGURE_FILE
737 "\0<-----------Space to patch configure_filename->";
738 uschar *config_main_filename = NULL;
739 uschar *config_main_directory = NULL;
741 #ifdef CONFIGURE_OWNER
742 uid_t config_uid = CONFIGURE_OWNER;
744 uid_t config_uid = 0;
747 int connection_max_messages= -1;
748 uschar *continue_proxy_cipher = NULL;
749 uschar *continue_hostname = NULL;
750 uschar *continue_host_address = NULL;
751 int continue_sequence = 1;
752 uschar *continue_transport = NULL;
754 uschar *csa_status = NULL;
756 .callout_hold_only = FALSE, /* verify-only: normal delivery */
757 .delivery = FALSE, /* when to attempt */
758 .defer_pass = FALSE, /* on defer: spool locally */
759 .is_tls = FALSE, /* not a TLS conn yet */
760 .cctx = {.sock = -1}, /* open connection */
761 .nrcpt = 0, /* number of addresses */
764 uschar *daemon_smtp_port = US"smtp";
765 int daemon_startup_retries = 9;
766 int daemon_startup_sleep = 30;
768 #ifdef EXPERIMENTAL_DCC
769 uschar *dcc_header = NULL;
770 uschar *dcc_result = NULL;
771 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
772 uschar *dccifd_options = US"header";
776 FILE *debug_file = NULL;
777 int debug_notall[] = {
782 bit_table debug_options[] = { /* must be in alphabetical order and use
783 only the enum values from macro.h */
787 BIT_TABLE(D, deliver),
791 BIT_TABLE(D, expand),
792 BIT_TABLE(D, filter),
793 BIT_TABLE(D, hints_lookup),
794 BIT_TABLE(D, host_lookup),
796 BIT_TABLE(D, interface),
799 BIT_TABLE(D, local_scan),
800 BIT_TABLE(D, lookup),
801 BIT_TABLE(D, memory),
802 BIT_TABLE(D, noutf8),
804 BIT_TABLE(D, process_info),
805 BIT_TABLE(D, queue_run),
806 BIT_TABLE(D, receive),
807 BIT_TABLE(D, resolver),
809 BIT_TABLE(D, rewrite),
811 BIT_TABLE(D, timestamp),
813 BIT_TABLE(D, transport),
815 BIT_TABLE(D, verify),
817 int debug_options_count = nelem(debug_options);
819 unsigned int debug_selector = 0;
820 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
821 uschar *delay_warning_condition=
823 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
824 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
825 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
827 uschar *deliver_address_data = NULL;
828 int deliver_datafile = -1;
829 const uschar *deliver_domain = NULL;
830 uschar *deliver_domain_data = NULL;
831 const uschar *deliver_domain_orig = NULL;
832 const uschar *deliver_domain_parent = NULL;
833 time_t deliver_frozen_at = 0;
834 uschar *deliver_home = NULL;
835 const uschar *deliver_host = NULL;
836 const uschar *deliver_host_address = NULL;
837 int deliver_host_port = 0;
838 uschar *deliver_in_buffer = NULL;
839 ino_t deliver_inode = 0;
840 uschar *deliver_localpart = NULL;
841 uschar *deliver_localpart_data = NULL;
842 uschar *deliver_localpart_orig = NULL;
843 uschar *deliver_localpart_parent = NULL;
844 uschar *deliver_localpart_prefix = NULL;
845 uschar *deliver_localpart_suffix = NULL;
846 uschar *deliver_out_buffer = NULL;
847 int deliver_queue_load_max = -1;
848 address_item *deliver_recipients = NULL;
849 uschar *deliver_selectstring = NULL;
850 uschar *deliver_selectstring_sender = NULL;
853 unsigned dkim_collect_input = 0;
854 uschar *dkim_cur_signer = NULL;
855 int dkim_key_length = 0;
856 void *dkim_signatures = NULL;
857 uschar *dkim_signers = NULL;
858 uschar *dkim_signing_domain = NULL;
859 uschar *dkim_signing_selector = NULL;
860 uschar *dkim_verify_overall = NULL;
861 uschar *dkim_verify_signers = US"$dkim_signers";
862 uschar *dkim_verify_status = NULL;
863 uschar *dkim_verify_reason = NULL;
865 #ifdef EXPERIMENTAL_DMARC
866 uschar *dmarc_domain_policy = NULL;
867 uschar *dmarc_forensic_sender = NULL;
868 uschar *dmarc_history_file = NULL;
869 uschar *dmarc_status = NULL;
870 uschar *dmarc_status_text = NULL;
871 uschar *dmarc_tld_file = NULL;
872 uschar *dmarc_used_domain = NULL;
875 uschar *dns_again_means_nonexist = NULL;
876 int dns_csa_search_limit = 5;
877 int dns_cname_loops = 1;
879 int dns_dane_ok = -1;
881 uschar *dns_ipv4_lookup = NULL;
884 int dns_dnssec_ok = -1; /* <0 = not coerced */
885 uschar *dns_trust_aa = NULL;
886 int dns_use_edns0 = -1; /* <0 = not coerced */
887 uschar *dnslist_domain = NULL;
888 uschar *dnslist_matched = NULL;
889 uschar *dnslist_text = NULL;
890 uschar *dnslist_value = NULL;
891 tree_node *domainlist_anchor = NULL;
892 int domainlist_count = 0;
893 uschar *dsn_from = US DEFAULT_DSN_FROM;
895 int errno_quota = ERRNO_QUOTA;
896 uschar *errors_copy = NULL;
897 int error_handling = ERRORS_SENDER;
898 uschar *errors_reply_to = NULL;
899 int errors_sender_rc = EXIT_FAILURE;
900 #ifndef DISABLE_EVENT
901 uschar *event_action = NULL; /* expansion for delivery events */
902 uschar *event_data = NULL; /* auxiliary data variable for event */
903 int event_defer_errno = 0;
904 const uschar *event_name = NULL; /* event name variable */
908 gid_t exim_gid = EXIM_GID;
909 uschar *exim_path = US BIN_DIRECTORY "/exim"
910 "\0<---------------Space to patch exim_path->";
911 uid_t exim_uid = EXIM_UID;
912 int expand_level = 0; /* Nesting depth, indent for debug */
913 int expand_forbid = 0;
914 int expand_nlength[EXPAND_MAXN+1];
915 int expand_nmax = -1;
916 uschar *expand_nstring[EXPAND_MAXN+1];
917 uschar *expand_string_message;
918 uschar *extra_local_interfaces = NULL;
920 int fake_response = OK;
921 uschar *fake_response_text = US"Your message has been rejected but is "
922 "being kept for evaluation.\nIf it was a "
923 "legitimate message, it may still be "
924 "delivered to the target recipient(s).";
925 int filter_n[FILTER_VARIABLE_COUNT];
926 int filter_sn[FILTER_VARIABLE_COUNT];
927 int filter_test = FTEST_NONE;
928 uschar *filter_test_sfile = NULL;
929 uschar *filter_test_ufile = NULL;
930 uschar *filter_thisaddress = NULL;
931 int finduser_retries = 0;
932 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
933 uschar *freeze_tell = NULL;
934 uschar *freeze_tell_config = NULL;
935 uschar *fudged_queue_times = US"";
937 uschar *gecos_name = NULL;
938 uschar *gecos_pattern = NULL;
939 rewrite_rule *global_rewrite_rules = NULL;
941 volatile sig_atomic_t had_command_timeout = 0;
942 volatile sig_atomic_t had_command_sigterm = 0;
943 volatile sig_atomic_t had_data_timeout = 0;
944 volatile sig_atomic_t had_data_sigint = 0;
945 uschar *headers_charset = US HEADERS_CHARSET;
946 int header_insert_maxlen = 64 * 1024;
947 header_line *header_last = NULL;
948 header_line *header_list = NULL;
949 int header_maxsize = HEADER_MAXSIZE;
950 int header_line_maxsize = 0;
952 header_name header_names[] = {
953 /* name len allow_resent htype */
954 { US"bcc", 3, TRUE, htype_bcc },
955 { US"cc", 2, TRUE, htype_cc },
956 { US"date", 4, TRUE, htype_date },
957 { US"delivery-date", 13, FALSE, htype_delivery_date },
958 { US"envelope-to", 11, FALSE, htype_envelope_to },
959 { US"from", 4, TRUE, htype_from },
960 { US"message-id", 10, TRUE, htype_id },
961 { US"received", 8, FALSE, htype_received },
962 { US"reply-to", 8, FALSE, htype_reply_to },
963 { US"return-path", 11, FALSE, htype_return_path },
964 { US"sender", 6, TRUE, htype_sender },
965 { US"subject", 7, FALSE, htype_subject },
966 { US"to", 2, TRUE, htype_to }
969 int header_names_size = nelem(header_names);
971 uschar *helo_accept_junk_hosts = NULL;
972 uschar *helo_allow_chars = US"";
973 uschar *helo_lookup_domains = US"@ : @[]";
974 uschar *helo_try_verify_hosts = NULL;
975 uschar *helo_verify_hosts = NULL;
976 const uschar *hex_digits = CUS"0123456789abcdef";
977 uschar *hold_domains = NULL;
978 uschar *host_data = NULL;
979 uschar *host_lookup = NULL;
980 uschar *host_lookup_order = US"bydns:byaddr";
981 uschar *host_lookup_msg = US"";
983 uschar *host_number_string = NULL;
984 uschar *host_reject_connection = NULL;
985 tree_node *hostlist_anchor = NULL;
986 int hostlist_count = 0;
987 uschar *hosts_treat_as_local = NULL;
988 uschar *hosts_connection_nolog = NULL;
990 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
991 uschar *ignore_fromline_hosts = NULL;
992 int inetd_wait_timeout = -1;
993 uschar *initial_cwd = NULL;
994 uschar *interface_address = NULL;
995 int interface_port = -1;
996 uschar *iterate_item = NULL;
1000 uschar *keep_environment = NULL;
1002 int keep_malformed = 4*24*60*60; /* 4 days */
1004 uschar *eldap_dn = NULL;
1005 int load_average = -2;
1006 uschar *local_from_prefix = NULL;
1007 uschar *local_from_suffix = NULL;
1010 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1012 uschar *local_interfaces = US"0.0.0.0";
1015 #ifdef HAVE_LOCAL_SCAN
1016 uschar *local_scan_data = NULL;
1017 int local_scan_timeout = 5*60;
1019 gid_t local_user_gid = (gid_t)(-1);
1020 uid_t local_user_uid = (uid_t)(-1);
1022 tree_node *localpartlist_anchor= NULL;
1023 int localpartlist_count = 0;
1024 uschar *log_buffer = NULL;
1026 int log_default[] = { /* for initializing log_selector */
1027 Li_acl_warn_skipped,
1028 Li_connection_reject,
1033 Li_host_lookup_failed,
1034 Li_lost_incoming_connection,
1035 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1040 Li_sender_verify_fail,
1043 Li_smtp_confirmation,
1044 Li_tls_certificate_verified,
1049 uschar *log_file_path = US LOG_FILE_PATH
1050 "\0<--------------Space to patch log_file_path->";
1052 int log_notall[] = {
1055 bit_table log_options[] = { /* must be in alphabetical order */
1056 BIT_TABLE(L, 8bitmime),
1057 BIT_TABLE(L, acl_warn_skipped),
1058 BIT_TABLE(L, address_rewrite),
1060 BIT_TABLE(L, all_parents),
1061 BIT_TABLE(L, arguments),
1062 BIT_TABLE(L, connection_reject),
1063 BIT_TABLE(L, delay_delivery),
1064 BIT_TABLE(L, deliver_time),
1065 BIT_TABLE(L, delivery_size),
1066 #ifndef DISABLE_DKIM
1068 BIT_TABLE(L, dkim_verbose),
1070 BIT_TABLE(L, dnslist_defer),
1071 BIT_TABLE(L, dnssec),
1073 BIT_TABLE(L, host_lookup_failed),
1074 BIT_TABLE(L, ident_timeout),
1075 BIT_TABLE(L, incoming_interface),
1076 BIT_TABLE(L, incoming_port),
1077 BIT_TABLE(L, lost_incoming_connection),
1078 BIT_TABLE(L, millisec),
1079 BIT_TABLE(L, msg_id),
1080 BIT_TABLE(L, msg_id_created),
1081 BIT_TABLE(L, outgoing_interface),
1082 BIT_TABLE(L, outgoing_port),
1084 BIT_TABLE(L, pipelining),
1085 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1086 BIT_TABLE(L, proxy),
1088 BIT_TABLE(L, queue_run),
1089 BIT_TABLE(L, queue_time),
1090 BIT_TABLE(L, queue_time_overall),
1091 BIT_TABLE(L, receive_time),
1092 BIT_TABLE(L, received_recipients),
1093 BIT_TABLE(L, received_sender),
1094 BIT_TABLE(L, rejected_header),
1095 { US"rejected_headers", Li_rejected_header },
1096 BIT_TABLE(L, retry_defer),
1097 BIT_TABLE(L, return_path_on_delivery),
1098 BIT_TABLE(L, sender_on_delivery),
1099 BIT_TABLE(L, sender_verify_fail),
1100 BIT_TABLE(L, size_reject),
1101 BIT_TABLE(L, skip_delivery),
1102 BIT_TABLE(L, smtp_confirmation),
1103 BIT_TABLE(L, smtp_connection),
1104 BIT_TABLE(L, smtp_incomplete_transaction),
1105 BIT_TABLE(L, smtp_mailauth),
1106 BIT_TABLE(L, smtp_no_mail),
1107 BIT_TABLE(L, smtp_protocol_error),
1108 BIT_TABLE(L, smtp_syntax_error),
1109 BIT_TABLE(L, subject),
1110 BIT_TABLE(L, tls_certificate_verified),
1111 BIT_TABLE(L, tls_cipher),
1112 BIT_TABLE(L, tls_peerdn),
1113 BIT_TABLE(L, tls_sni),
1114 BIT_TABLE(L, unknown_in_list),
1116 int log_options_count = nelem(log_options);
1118 int log_reject_target = 0;
1119 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1120 uschar *log_selector_string = NULL;
1121 FILE *log_stderr = NULL;
1122 uschar *login_sender_address = NULL;
1123 uschar *lookup_dnssec_authenticated = NULL;
1124 int lookup_open_max = 25;
1125 uschar *lookup_value = NULL;
1127 macro_item *macros_user = NULL;
1128 uschar *mailstore_basename = NULL;
1129 #ifdef WITH_CONTENT_SCAN
1130 uschar *malware_name = NULL; /* Virus Name */
1132 int max_received_linelength= 0;
1133 int max_username_length = 0;
1134 int message_age = 0;
1135 uschar *message_body = NULL;
1136 uschar *message_body_end = NULL;
1137 int message_body_size = 0;
1138 int message_body_visible = 500;
1139 int message_ended = END_NOTSTARTED;
1140 uschar *message_headers = NULL;
1142 uschar *message_id_domain = NULL;
1143 uschar *message_id_text = NULL;
1144 struct timeval message_id_tv = { 0, 0 };
1145 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1146 uschar *message_id_external;
1147 int message_linecount = 0;
1148 int message_size = 0;
1149 uschar *message_size_limit = US"50M";
1151 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1153 uschar message_subdir[2] = { 0, 0 };
1154 uschar *message_reference = NULL;
1156 /* MIME ACL expandables */
1157 #ifdef WITH_CONTENT_SCAN
1158 int mime_anomaly_level = 0;
1159 const uschar *mime_anomaly_text = NULL;
1160 uschar *mime_boundary = NULL;
1161 uschar *mime_charset = NULL;
1162 uschar *mime_content_description = NULL;
1163 uschar *mime_content_disposition = NULL;
1164 uschar *mime_content_id = NULL;
1165 unsigned int mime_content_size = 0;
1166 uschar *mime_content_transfer_encoding = NULL;
1167 uschar *mime_content_type = NULL;
1168 uschar *mime_decoded_filename = NULL;
1169 uschar *mime_filename = NULL;
1170 int mime_is_multipart = 0;
1171 int mime_is_coverletter = 0;
1172 int mime_is_rfc822 = 0;
1173 int mime_part_count = -1;
1176 uid_t *never_users = NULL;
1178 const int on = 1; /* for setsockopt */
1181 uid_t original_euid;
1182 gid_t originator_gid;
1183 uschar *originator_login = NULL;
1184 uschar *originator_name = NULL;
1185 uid_t originator_uid;
1186 uschar *override_local_interfaces = NULL;
1187 uschar *override_pid_file_path = NULL;
1189 uschar *percent_hack_domains = NULL;
1190 uschar *pid_file_path = US PID_FILE_PATH
1191 "\0<--------------Space to patch pid_file_path->";
1192 #ifdef EXPERIMENTAL_PIPE_CONNECT
1193 uschar *pipe_connect_advertise_hosts = US"*";
1195 uschar *pipelining_advertise_hosts = US"*";
1196 uschar *primary_hostname = NULL;
1197 uschar process_info[PROCESS_INFO_SIZE];
1198 int process_info_len = 0;
1199 uschar *process_log_path = NULL;
1201 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1202 uschar *hosts_proxy = NULL;
1203 uschar *proxy_external_address = NULL;
1204 int proxy_external_port = 0;
1205 uschar *proxy_local_address = NULL;
1206 int proxy_local_port = 0;
1209 uschar *prvscheck_address = NULL;
1210 uschar *prvscheck_keynum = NULL;
1211 uschar *prvscheck_result = NULL;
1214 const uschar *qualify_domain_recipient = NULL;
1215 uschar *qualify_domain_sender = NULL;
1216 uschar *queue_domains = NULL;
1217 int queue_interval = -1;
1218 uschar *queue_name = US"";
1219 uschar *queue_only_file = NULL;
1220 int queue_only_load = -1;
1221 uschar *queue_run_max = US"5";
1222 pid_t queue_run_pid = (pid_t)0;
1223 int queue_run_pipe = -1;
1224 uschar *queue_smtp_domains = NULL;
1226 uint32_t random_seed = 0;
1227 tree_node *ratelimiters_cmd = NULL;
1228 tree_node *ratelimiters_conn = NULL;
1229 tree_node *ratelimiters_mail = NULL;
1230 uschar *raw_active_hostname = NULL;
1231 uschar *raw_sender = NULL;
1232 uschar **raw_recipients = NULL;
1233 int raw_recipients_count = 0;
1236 int rcpt_fail_count = 0;
1237 int rcpt_defer_count = 0;
1240 int receive_linecount = 0;
1241 int receive_messagecount = 0;
1242 int receive_timeout = 0;
1243 int received_count = 0;
1244 uschar *received_for = NULL;
1246 /* This is the default text for Received headers generated by Exim. The
1247 date will be automatically added on the end. */
1249 uschar *received_header_text = US
1251 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1252 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1253 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1254 "by $primary_hostname "
1255 "${if def:received_protocol {with $received_protocol }}"
1257 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1259 "(Exim $version_number)\n\t"
1260 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1261 "id $message_exim_id"
1262 "${if def:received_for {\n\tfor $received_for}}"
1263 "\0<---------------Space to patch received_header_text->";
1265 int received_headers_max = 30;
1266 uschar *received_protocol = NULL;
1267 struct timeval received_time = { 0, 0 };
1268 struct timeval received_time_taken = { 0, 0 };
1269 uschar *recipient_data = NULL;
1270 uschar *recipient_unqualified_hosts = NULL;
1271 uschar *recipient_verify_failure = NULL;
1272 int recipients_count = 0;
1273 recipient_item *recipients_list = NULL;
1274 int recipients_list_max = 0;
1275 int recipients_max = 0;
1276 const pcre *regex_AUTH = NULL;
1277 const pcre *regex_check_dns_names = NULL;
1278 const pcre *regex_From = NULL;
1279 const pcre *regex_IGNOREQUOTA = NULL;
1280 const pcre *regex_PIPELINING = NULL;
1281 const pcre *regex_SIZE = NULL;
1282 #ifdef EXPERIMENTAL_PIPE_CONNECT
1283 const pcre *regex_EARLY_PIPE = NULL;
1285 const pcre *regex_ismsgid = NULL;
1286 const pcre *regex_smtp_code = NULL;
1287 uschar *regex_vars[REGEX_VARS];
1288 #ifdef WHITELIST_D_MACROS
1289 const pcre *regex_whitelisted_macro = NULL;
1291 #ifdef WITH_CONTENT_SCAN
1292 uschar *regex_match_string = NULL;
1294 int remote_delivery_count = 0;
1295 int remote_max_parallel = 2;
1296 uschar *remote_sort_domains = NULL;
1297 int retry_data_expire = 7*24*60*60;
1298 int retry_interval_max = 24*60*60;
1299 int retry_maximum_timeout = 0; /* set from retry config */
1300 retry_config *retries = NULL;
1301 uschar *return_path = NULL;
1302 int rewrite_existflags = 0;
1303 uschar *rfc1413_hosts = US"@[]";
1304 int rfc1413_query_timeout = 0;
1305 uid_t root_gid = ROOT_GID;
1306 uid_t root_uid = ROOT_UID;
1308 router_instance *routers = NULL;
1309 router_instance router_defaults = {
1313 .options_block = NULL,
1314 .driver_name = NULL,
1316 .address_data = NULL,
1317 #ifdef EXPERIMENTAL_BRIGHTMAIL
1320 .cannot_route_message = NULL,
1322 .current_directory = NULL,
1323 .debug_string = NULL,
1328 .expand_more = NULL,
1329 .expand_unseen = NULL,
1330 .extra_headers = NULL,
1331 .fallback_hosts = NULL,
1332 .home_directory = NULL,
1333 .ignore_target_hosts = NULL,
1334 .local_parts = NULL,
1335 .pass_router_name = NULL,
1337 .redirect_router_name = NULL,
1338 .remove_headers = NULL,
1339 .require_files = NULL,
1340 .router_home_directory = NULL,
1344 .translate_ip_address = NULL,
1345 .transport_name = NULL,
1347 .address_test = TRUE,
1348 #ifdef EXPERIMENTAL_BRIGHTMAIL
1349 .bmi_deliver_alternate = FALSE,
1350 .bmi_deliver_default = FALSE,
1351 .bmi_dont_deliver = FALSE,
1354 .caseful_local_part = FALSE,
1355 .check_local_user = FALSE,
1356 .disable_logging = FALSE,
1357 .fail_verify_recipient = FALSE,
1358 .fail_verify_sender = FALSE,
1360 .initgroups = FALSE,
1361 .log_as_local = TRUE_UNSET,
1363 .pass_on_timeout = FALSE,
1364 .prefix_optional = FALSE,
1366 .retry_use_local_part = TRUE_UNSET,
1367 .same_domain_copy_routing = FALSE,
1368 .self_rewrite = FALSE,
1369 .suffix_optional = FALSE,
1370 .verify_only = FALSE,
1371 .verify_recipient = TRUE,
1372 .verify_sender = TRUE,
1375 .dsn_lasthop = FALSE,
1377 .self_code = self_freeze,
1381 .fallback_hostlist = NULL,
1383 .pass_router = NULL,
1384 .redirect_router = NULL,
1386 .dnssec = { NULL, NULL }, /* dnssec_domains {require,request} */
1389 uschar *router_name = NULL;
1391 ip_address_item *running_interfaces = NULL;
1393 /* This is a weird one. The following string gets patched in the binary by the
1394 script that sets up a copy of Exim for running in the test harness. It seems
1395 that compilers are now clever, and share constant strings if they can.
1396 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1397 make use of the end of this string in order to save space. So the patching then
1398 wrecks this. We defeat this optimization by adding some additional characters
1399 onto the end of the string. */
1401 uschar *running_status = US">>>running<<<" "\0EXTRA";
1405 uschar *search_error_message = NULL;
1406 uschar *self_hostname = NULL;
1407 uschar *sender_address = NULL;
1408 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1409 uschar *sender_address_data = NULL;
1410 uschar *sender_address_unrewritten = NULL;
1411 uschar *sender_data = NULL;
1412 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1413 uschar *sender_fullhost = NULL;
1414 uschar *sender_helo_name = NULL;
1415 uschar **sender_host_aliases = &no_aliases;
1416 uschar *sender_host_address = NULL;
1417 uschar *sender_host_authenticated = NULL;
1418 uschar *sender_host_auth_pubname = NULL;
1419 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1420 uschar *sender_host_name = NULL;
1421 int sender_host_port = 0;
1422 uschar *sender_ident = NULL;
1423 uschar *sender_rate = NULL;
1424 uschar *sender_rate_limit = NULL;
1425 uschar *sender_rate_period = NULL;
1426 uschar *sender_rcvhost = NULL;
1427 uschar *sender_unqualified_hosts = NULL;
1428 uschar *sender_verify_failure = NULL;
1429 address_item *sender_verified_list = NULL;
1430 address_item *sender_verified_failed = NULL;
1431 int sender_verified_rc = -1;
1432 uschar *sending_ip_address = NULL;
1433 int sending_port = -1;
1434 SIGNAL_BOOL sigalrm_seen = FALSE;
1435 const uschar *sigalarm_setter = NULL;
1436 uschar **sighup_argv = NULL;
1437 int slow_lookup_log = 0; /* millisecs, zero disables */
1438 int smtp_accept_count = 0;
1439 int smtp_accept_max = 20;
1440 int smtp_accept_max_nonmail= 10;
1441 uschar *smtp_accept_max_nonmail_hosts = US"*";
1442 int smtp_accept_max_per_connection = 1000;
1443 uschar *smtp_accept_max_per_host = NULL;
1444 int smtp_accept_queue = 0;
1445 int smtp_accept_queue_per_connection = 10;
1446 int smtp_accept_reserve = 0;
1447 uschar *smtp_active_hostname = NULL;
1448 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1449 "Exim $version_number $tod_full"
1450 "\0<---------------Space to patch smtp_banner->";
1451 int smtp_ch_index = 0;
1452 uschar *smtp_cmd_argument = NULL;
1453 uschar *smtp_cmd_buffer = NULL;
1454 struct timeval smtp_connection_start = {0,0};
1455 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1456 int smtp_connect_backlog = 20;
1457 double smtp_delay_mail = 0.0;
1458 double smtp_delay_rcpt = 0.0;
1459 FILE *smtp_in = NULL;
1460 int smtp_load_reserve = -1;
1461 int smtp_mailcmd_count = 0;
1462 FILE *smtp_out = NULL;
1463 uschar *smtp_etrn_command = NULL;
1464 int smtp_max_synprot_errors= 3;
1465 int smtp_max_unknown_commands = 3;
1466 uschar *smtp_notquit_reason = NULL;
1467 uschar *smtp_ratelimit_hosts = NULL;
1468 uschar *smtp_ratelimit_mail = NULL;
1469 uschar *smtp_ratelimit_rcpt = NULL;
1470 uschar *smtp_read_error = US"";
1471 int smtp_receive_timeout = 5*60;
1472 uschar *smtp_receive_timeout_s = NULL;
1473 uschar *smtp_reserve_hosts = NULL;
1474 int smtp_rlm_base = 0;
1475 double smtp_rlm_factor = 0.0;
1476 int smtp_rlm_limit = 0;
1477 int smtp_rlm_threshold = INT_MAX;
1478 int smtp_rlr_base = 0;
1479 double smtp_rlr_factor = 0.0;
1480 int smtp_rlr_limit = 0;
1481 int smtp_rlr_threshold = INT_MAX;
1482 unsigned smtp_peer_options = 0;
1483 unsigned smtp_peer_options_wrap= 0;
1485 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1488 #ifdef WITH_CONTENT_SCAN
1489 uschar *spamd_address = US"127.0.0.1 783";
1490 uschar *spam_bar = NULL;
1491 uschar *spam_report = NULL;
1492 uschar *spam_action = NULL;
1493 uschar *spam_score = NULL;
1494 uschar *spam_score_int = NULL;
1497 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1498 uschar *spf_header_comment = NULL;
1499 uschar *spf_received = NULL;
1500 uschar *spf_result = NULL;
1501 uschar *spf_smtp_comment = NULL;
1504 FILE *spool_data_file = NULL;
1505 uschar *spool_directory = US SPOOL_DIRECTORY
1506 "\0<--------------Space to patch spool_directory->";
1507 #ifdef EXPERIMENTAL_SRS
1508 uschar *srs_config = NULL;
1509 uschar *srs_db_address = NULL;
1510 uschar *srs_db_key = NULL;
1511 int srs_hashlength = 6;
1512 int srs_hashmin = -1;
1513 int srs_maxage = 31;
1514 uschar *srs_orig_recipient = NULL;
1515 uschar *srs_orig_sender = NULL;
1516 uschar *srs_recipient = NULL;
1517 uschar *srs_secrets = NULL;
1518 uschar *srs_status = NULL;
1520 int string_datestamp_offset= -1;
1521 int string_datestamp_length= 0;
1522 int string_datestamp_type = -1;
1523 uschar *submission_domain = NULL;
1524 uschar *submission_name = NULL;
1525 int syslog_facility = LOG_MAIL;
1526 uschar *syslog_processname = US"exim";
1527 uschar *system_filter = NULL;
1529 uschar *system_filter_directory_transport = NULL;
1530 uschar *system_filter_file_transport = NULL;
1531 uschar *system_filter_pipe_transport = NULL;
1532 uschar *system_filter_reply_transport = NULL;
1534 gid_t system_filter_gid = 0;
1535 uid_t system_filter_uid = (uid_t)-1;
1537 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1538 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1539 #ifdef USE_TCP_WRAPPERS
1540 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1542 int test_harness_load_avg = 0;
1543 int thismessage_size_limit = 0;
1544 int timeout_frozen_after = 0;
1546 transport_instance *transports = NULL;
1548 transport_instance transport_defaults = {
1552 .options_block = NULL,
1553 .driver_name = NULL,
1558 .current_dir = NULL,
1559 .expand_multi_domain = NULL,
1560 .multi_domain = TRUE,
1561 .overrides_hosts = FALSE,
1562 .max_addresses = 100,
1563 .connection_max_messages = 500,
1564 .deliver_as_creator = FALSE,
1565 .disable_logging = FALSE,
1566 .initgroups = FALSE,
1573 .warn_message = NULL,
1575 .shadow_condition = NULL,
1576 .filter_command = NULL,
1577 .add_headers = NULL,
1578 .remove_headers = NULL,
1579 .return_path = NULL,
1580 .debug_string = NULL,
1581 .max_parallel = NULL,
1582 .message_size_limit = NULL,
1583 .headers_rewrite = NULL,
1584 .rewrite_rules = NULL,
1585 .rewrite_existflags = 0,
1586 .filter_timeout = 300,
1588 .delivery_date_add = FALSE,
1589 .envelope_to_add = FALSE,
1590 .headers_only = FALSE,
1591 .rcpt_include_affixes = FALSE,
1592 .return_path_add = FALSE,
1593 .return_output = FALSE,
1594 .return_fail_output = FALSE,
1595 .log_output = FALSE,
1596 .log_fail_output = FALSE,
1597 .log_defer_output = FALSE,
1598 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1599 1 nor 0 so can detect unset */
1600 #ifndef DISABLE_EVENT
1601 .event_action = NULL
1605 int transport_count;
1606 uschar *transport_name = NULL;
1607 int transport_newlines;
1608 const uschar **transport_filter_argv = NULL;
1609 int transport_filter_timeout;
1610 int transport_write_timeout= 0;
1612 tree_node *tree_dns_fails = NULL;
1613 tree_node *tree_duplicates = NULL;
1614 tree_node *tree_nonrecipients = NULL;
1615 tree_node *tree_unusable = NULL;
1617 gid_t *trusted_groups = NULL;
1618 uid_t *trusted_users = NULL;
1619 uschar *timezone_string = US TIMEZONE_DEFAULT;
1621 uschar *unknown_login = NULL;
1622 uschar *unknown_username = NULL;
1623 uschar *untrusted_set_sender = NULL;
1625 /* A regex for matching a "From_" line in an incoming message, in the form
1627 From ph10 Fri Jan 5 12:35 GMT 1996
1629 which the "mail" commands send to the MTA (undocumented, of course), or in
1632 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1634 which is apparently used by some UUCPs, despite it not being in RFC 976.
1635 Because of variations in time formats, just match up to the minutes. That
1636 should be sufficient. Examples have been seen of time fields like 12:1:03,
1637 so just require one digit for hours and minutes. The weekday is also absent
1640 uschar *uucp_from_pattern = US
1641 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1642 "(?:" /* Non-extracting bracket */
1643 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1644 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1645 ")" /* End alternation */
1646 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1648 uschar *uucp_from_sender = US"$1";
1650 uschar *verify_mode = NULL;
1651 uschar *version_copyright =
1652 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1653 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1654 uschar *version_date = US"?";
1655 uschar *version_cnumber = US"????";
1656 uschar *version_string = US"?";
1658 uschar *warn_message_file = NULL;
1659 int warning_count = 0;
1660 uschar *warnmsg_delay = NULL;
1661 uschar *warnmsg_recipients = NULL;
1664 /* End of globals.c */