1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* Copyright (c) The Exim Maintainers 2020 */
7 /* See the file NOTICE for conditions of use and distribution. */
9 /* All the global variables are defined together in this one module, so
10 that they are easy to find. */
15 /* Generic options for auths, all of which live inside auth_instance
16 data blocks and hence have the opt_public flag set. */
18 optionlist optionlist_auths[] = {
19 { "client_condition", opt_stringptr | opt_public,
20 OPT_OFF(auth_instance, client_condition) },
21 { "client_set_id", opt_stringptr | opt_public,
22 OPT_OFF(auth_instance, set_client_id) },
23 { "driver", opt_stringptr | opt_public,
24 OPT_OFF(auth_instance, driver_name) },
25 { "public_name", opt_stringptr | opt_public,
26 OPT_OFF(auth_instance, public_name) },
27 { "server_advertise_condition", opt_stringptr | opt_public,
28 OPT_OFF(auth_instance, advertise_condition)},
29 { "server_condition", opt_stringptr | opt_public,
30 OPT_OFF(auth_instance, server_condition) },
31 { "server_debug_print", opt_stringptr | opt_public,
32 OPT_OFF(auth_instance, server_debug_string) },
33 { "server_mail_auth_condition", opt_stringptr | opt_public,
34 OPT_OFF(auth_instance, mail_auth_condition) },
35 { "server_set_id", opt_stringptr | opt_public,
36 OPT_OFF(auth_instance, set_id) }
39 int optionlist_auths_size = nelem(optionlist_auths);
41 /* An empty host aliases list. */
43 uschar *no_aliases = NULL;
46 /* For comments on these variables, see globals.h. I'm too idle to
47 duplicate them here... */
50 uschar *opt_perl_startup = NULL;
51 BOOL opt_perl_at_start = FALSE;
52 BOOL opt_perl_started = FALSE;
53 BOOL opt_perl_taintmode = FALSE;
57 tree_node *dlobj_anchor = NULL;
61 uschar *ibase_servers = NULL;
65 uschar *eldap_ca_cert_dir = NULL;
66 uschar *eldap_ca_cert_file = NULL;
67 uschar *eldap_cert_file = NULL;
68 uschar *eldap_cert_key = NULL;
69 uschar *eldap_cipher_suite = NULL;
70 uschar *eldap_default_servers = NULL;
71 uschar *eldap_require_cert = NULL;
72 int eldap_version = -1;
73 BOOL eldap_start_tls = FALSE;
77 uschar *mysql_servers = NULL;
81 uschar *oracle_servers = NULL;
85 uschar *pgsql_servers = NULL;
89 uschar *redis_servers = NULL;
93 uschar *sqlite_dbfile = NULL;
94 int sqlite_lock_timeout = 5;
97 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
98 BOOL move_frozen_messages = FALSE;
101 /* These variables are outside the #ifdef because it keeps the code less
102 cluttered in several places (e.g. during logging) if we can always refer to
103 them. Also, the tls_ variables are now always visible. Note that these are
104 only used for smtp connections, not for service-daemon access. */
106 tls_support tls_in = {
107 .active = {.sock = -1}
108 /* all other elements zero */
110 tls_support tls_out = {
111 .active = {.sock = -1},
112 /* all other elements zero */
115 uschar *dsn_envid = NULL;
117 const pcre *regex_DSN = NULL;
118 uschar *dsn_advertise_hosts = NULL;
121 BOOL gnutls_compat_mode = FALSE;
122 BOOL gnutls_allow_auto_pkcs11 = FALSE;
123 uschar *openssl_options = NULL;
124 const pcre *regex_STARTTLS = NULL;
125 uschar *tls_advertise_hosts = US"*";
126 uschar *tls_certificate = NULL;
127 uschar *tls_crl = NULL;
128 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
129 that's the interop problem which has been observed: GnuTLS suggesting a higher
130 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
131 int tls_dh_max_bits = 2236;
132 uschar *tls_dhparam = NULL;
133 uschar *tls_eccurve = US"auto";
134 # ifndef DISABLE_OCSP
135 uschar *tls_ocsp_file = NULL;
137 uschar *tls_privatekey = NULL;
138 BOOL tls_remember_esmtp = FALSE;
139 uschar *tls_require_ciphers = NULL;
140 # ifndef DISABLE_TLS_RESUME
141 uschar *tls_resumption_hosts = NULL;
143 uschar *tls_try_verify_hosts = NULL;
144 #if defined(SUPPORT_SYSDEFAULT_CABUNDLE) || !defined(USE_GNUTLS)
145 uschar *tls_verify_certificates= US"system";
147 uschar *tls_verify_certificates= NULL;
149 uschar *tls_verify_hosts = NULL;
150 int tls_watch_fd = -1;
151 time_t tls_watch_trigger_time = (time_t)0;
152 #else /*DISABLE_TLS*/
153 uschar *tls_advertise_hosts = NULL;
157 /* Per Recipient Data Response variables */
158 BOOL prdr_enable = FALSE;
159 BOOL prdr_requested = FALSE;
160 const pcre *regex_PRDR = NULL;
164 const pcre *regex_UTF8 = NULL;
167 /* Input-reading functions for messages, so we can use special ones for
168 incoming TCP/IP. The defaults use stdin. We never need these for any
169 stand-alone tests. */
171 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
172 int (*lwr_receive_getc)(unsigned) = stdin_getc;
173 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
174 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
175 int (*receive_getc)(unsigned) = stdin_getc;
176 uschar * (*receive_getbuf)(unsigned *) = NULL;
177 void (*receive_get_cache)(void)= NULL;
178 int (*receive_ungetc)(int) = stdin_ungetc;
179 int (*receive_feof)(void) = stdin_feof;
180 int (*receive_ferror)(void) = stdin_ferror;
181 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
185 /* List of per-address expansion variables for clearing and saving/restoring
186 when verifying one address while routing/verifying another. We have to have
187 the size explicit, because it is referenced from more than one module. */
189 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
190 CUSS &deliver_address_data,
191 CUSS &deliver_domain,
192 CUSS &deliver_domain_data,
193 CUSS &deliver_domain_orig,
194 CUSS &deliver_domain_parent,
195 CUSS &deliver_localpart,
196 CUSS &deliver_localpart_data,
197 CUSS &deliver_localpart_orig,
198 CUSS &deliver_localpart_parent,
199 CUSS &deliver_localpart_prefix,
200 CUSS &deliver_localpart_suffix,
201 CUSS (uschar **)(&deliver_recipients),
209 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
211 /******************************************************************************/
212 /* General global variables. Boolean flags are done as a group
213 so that only one bit each is needed, packed, for all those we never
214 need to take a pointer - and only a char for the rest.
215 This means a struct, unfortunately since it clutters the sourcecode. */
217 struct global_flags f =
219 .acl_temp_details = FALSE,
220 .active_local_from_check = FALSE,
221 .active_local_sender_retain = FALSE,
222 .address_test_mode = FALSE,
224 .allow_auth_unadvertised= FALSE,
225 .allow_unqualified_recipient = TRUE, /* For local messages */
226 .allow_unqualified_sender = TRUE, /* Reset for SMTP */
227 .authentication_local = FALSE,
229 .background_daemon = TRUE,
230 .bdat_readers_wanted = FALSE,
232 .chunking_offered = FALSE,
233 .config_changed = FALSE,
234 .continue_more = FALSE,
236 .daemon_listen = FALSE,
237 .debug_daemon = FALSE,
238 .deliver_firsttime = FALSE,
239 .deliver_force = FALSE,
240 .deliver_freeze = FALSE,
241 .deliver_force_thaw = FALSE,
242 .deliver_manual_thaw = FALSE,
243 .deliver_selectstring_regex = FALSE,
244 .deliver_selectstring_sender_regex = FALSE,
245 .disable_callout_flush = FALSE,
246 .disable_delay_flush = FALSE,
247 .disable_logging = FALSE,
249 .dkim_disable_verify = FALSE,
250 .dkim_init_done = FALSE,
253 .dmarc_has_been_checked = FALSE,
254 .dmarc_disable_verify = FALSE,
255 .dmarc_enable_forensic = FALSE,
257 .dont_deliver = FALSE,
260 .enable_dollar_recipients = FALSE,
261 .expand_string_forcedfail = FALSE,
263 .filter_running = FALSE,
265 .header_rewritten = FALSE,
266 .helo_verified = FALSE,
267 .helo_verify_failed = FALSE,
268 .host_checking_callout = FALSE,
269 .host_find_failed_syntax= FALSE,
271 .inetd_wait_mode = FALSE,
274 .local_error_message = FALSE,
275 .log_testing_mode = FALSE,
277 #ifdef WITH_CONTENT_SCAN
278 .no_mbox_unspool = FALSE,
280 .no_multiline_responses = FALSE,
282 .parse_allow_group = FALSE,
283 .parse_found_group = FALSE,
284 .pipelining_enable = TRUE,
285 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
286 .proxy_session_failed = FALSE,
289 .queue_2stage = FALSE,
290 .queue_only_policy = FALSE,
291 .queue_run_first_delivery = FALSE,
292 .queue_run_force = FALSE,
293 .queue_run_local = FALSE,
294 .queue_running = FALSE,
298 .receive_call_bombout = FALSE,
299 .recipients_discarded = FALSE,
300 .running_in_test_harness = FALSE,
302 .search_find_defer = FALSE,
303 .sender_address_forced = FALSE,
304 .sender_host_notsocket = FALSE,
305 .sender_host_unknown = FALSE,
306 .sender_local = FALSE,
307 .sender_name_forced = FALSE,
308 .sender_set_untrusted = FALSE,
309 .smtp_authenticated = FALSE,
310 #ifndef DISABLE_PIPE_CONNECT
311 .smtp_in_early_pipe_advertised = FALSE,
312 .smtp_in_early_pipe_no_auth = FALSE,
313 .smtp_in_early_pipe_used = FALSE,
315 .smtp_in_pipelining_advertised = FALSE,
316 .smtp_in_pipelining_used = FALSE,
317 .smtp_in_quit = FALSE,
318 .spool_file_wireformat = FALSE,
319 .submission_mode = FALSE,
320 .suppress_local_fixups = FALSE,
321 .suppress_local_fixups_default = FALSE,
322 .synchronous_delivery = FALSE,
323 .system_filtering = FALSE,
325 .taint_check_slow = FALSE,
326 .testsuite_delays = TRUE,
327 .tcp_fastopen_ok = FALSE,
328 .tcp_in_fastopen = FALSE,
329 .tcp_in_fastopen_data = FALSE,
330 .tcp_in_fastopen_logged = FALSE,
331 .tcp_out_fastopen_logged= FALSE,
332 .timestamps_utc = FALSE,
333 .transport_filter_timed_out = FALSE,
334 .trusted_caller = FALSE,
335 .trusted_config = TRUE,
338 /******************************************************************************/
339 /* These are the flags which are either variables or mainsection options,
340 so an address is needed for access, or are exported to local_scan. */
342 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
343 BOOL allow_domain_literals = FALSE;
344 BOOL allow_mx_to_ip = FALSE;
345 BOOL allow_utf8_domains = FALSE;
346 BOOL authentication_failed = FALSE;
348 BOOL bounce_return_body = TRUE;
349 BOOL bounce_return_message = TRUE;
350 BOOL check_rfc2047_length = TRUE;
351 BOOL commandline_checks_require_admin = FALSE;
353 #ifdef EXPERIMENTAL_DCC
354 BOOL dcc_direct_add_header = FALSE;
356 BOOL debug_store = FALSE;
357 BOOL delivery_date_remove = TRUE;
358 BOOL deliver_drop_privilege = FALSE;
359 #ifdef ENABLE_DISABLE_FSYNC
360 BOOL disable_fsync = FALSE;
362 BOOL disable_ipv6 = FALSE;
363 BOOL dns_csa_use_reverse = TRUE;
364 BOOL drop_cr = FALSE; /* No longer used */
366 BOOL envelope_to_remove = TRUE;
367 BOOL exim_gid_set = TRUE; /* This gid is always set */
368 BOOL exim_uid_set = TRUE; /* This uid is always set */
369 BOOL extract_addresses_remove_arguments = TRUE;
371 BOOL host_checking = FALSE;
372 BOOL host_lookup_deferred = FALSE;
373 BOOL host_lookup_failed = FALSE;
374 BOOL ignore_fromline_local = FALSE;
376 BOOL local_from_check = TRUE;
377 BOOL local_sender_retain = FALSE;
378 BOOL log_timezone = FALSE;
379 BOOL message_body_newlines = FALSE;
380 BOOL message_logs = TRUE;
382 BOOL message_smtputf8 = FALSE;
384 BOOL mua_wrapper = FALSE;
386 BOOL preserve_message_logs = FALSE;
387 BOOL print_topbitchars = FALSE;
388 BOOL prod_requires_admin = TRUE;
389 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
390 BOOL proxy_session = FALSE;
393 #ifndef DISABLE_QUEUE_RAMP
394 BOOL queue_fast_ramp = FALSE;
396 BOOL queue_list_requires_admin = TRUE;
397 BOOL queue_only = FALSE;
398 BOOL queue_only_load_latch = TRUE;
399 BOOL queue_only_override = TRUE;
400 BOOL queue_run_in_order = FALSE;
401 BOOL recipients_max_reject = FALSE;
402 BOOL return_path_remove = TRUE;
404 BOOL smtp_batched_input = FALSE;
405 BOOL sender_helo_dnssec = FALSE;
406 BOOL sender_host_dnssec = FALSE;
407 BOOL smtp_accept_keepalive = TRUE;
408 BOOL smtp_check_spool_space = TRUE;
409 BOOL smtp_enforce_sync = TRUE;
410 BOOL smtp_etrn_serialize = TRUE;
411 BOOL smtp_input = FALSE;
412 BOOL smtp_return_error_details = FALSE;
414 BOOL spf_result_guessed = FALSE;
416 BOOL split_spool_directory = FALSE;
417 BOOL spool_wireformat = FALSE;
418 #ifdef EXPERIMENTAL_SRS_ALT
419 BOOL srs_usehash = TRUE;
420 BOOL srs_usetimestamp = TRUE;
422 BOOL strict_acl_vars = FALSE;
423 BOOL strip_excess_angle_brackets = FALSE;
424 BOOL strip_trailing_dot = FALSE;
425 BOOL syslog_duplication = TRUE;
426 BOOL syslog_pid = TRUE;
427 BOOL syslog_timestamp = TRUE;
428 BOOL system_filter_gid_set = FALSE;
429 BOOL system_filter_uid_set = FALSE;
431 BOOL tcp_nodelay = TRUE;
432 BOOL write_rejectlog = TRUE;
434 /******************************************************************************/
436 header_line *acl_added_headers = NULL;
437 tree_node *acl_anchor = NULL;
438 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
439 NULL, NULL, NULL, NULL};
444 uschar *acl_not_smtp = NULL;
445 #ifdef WITH_CONTENT_SCAN
446 uschar *acl_not_smtp_mime = NULL;
448 uschar *acl_not_smtp_start = NULL;
449 uschar *acl_removed_headers = NULL;
450 uschar *acl_smtp_auth = NULL;
451 uschar *acl_smtp_connect = NULL;
452 uschar *acl_smtp_data = NULL;
454 uschar *acl_smtp_data_prdr = US"accept";
457 uschar *acl_smtp_dkim = NULL;
459 uschar *acl_smtp_etrn = NULL;
460 uschar *acl_smtp_expn = NULL;
461 uschar *acl_smtp_helo = NULL;
462 uschar *acl_smtp_mail = NULL;
463 uschar *acl_smtp_mailauth = NULL;
464 #ifdef WITH_CONTENT_SCAN
465 uschar *acl_smtp_mime = NULL;
467 uschar *acl_smtp_notquit = NULL;
468 uschar *acl_smtp_predata = NULL;
469 uschar *acl_smtp_quit = NULL;
470 uschar *acl_smtp_rcpt = NULL;
471 uschar *acl_smtp_starttls = NULL;
472 uschar *acl_smtp_vrfy = NULL;
474 tree_node *acl_var_c = NULL;
475 tree_node *acl_var_m = NULL;
476 uschar *acl_verify_message = NULL;
477 string_item *acl_warn_logged = NULL;
479 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
480 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
482 uschar *acl_wherenames[] = { US"RCPT",
507 uschar *acl_wherecodes[] = { US"550", /* RCPT */
509 US"550", /* PREDATA */
514 US"550", /* RCPT PRDR */
516 US"0", /* not SMTP; not relevant */
518 US"550", /* connect */
521 US"550", /* HELO/EHLO */
522 US"0", /* MAILAUTH; not relevant */
523 US"0", /* not SMTP; not relevant */
524 US"0", /* NOTQUIT; not relevant */
525 US"0", /* QUIT; not relevant */
526 US"550", /* STARTTLS */
528 US"0", /* delivery; not relevant */
529 US"0" /* unknown; not relevant */
532 uschar *add_environment = NULL;
533 address_item *addr_duplicate = NULL;
535 address_item address_defaults = {
540 .start_router = NULL,
545 .fallback_hosts = NULL,
550 .cc_local_part = NULL,
551 .lc_local_part = NULL,
558 .address_retry_key = NULL,
559 .domain_retry_key = NULL,
563 .user_message = NULL,
564 .onetime_parent = NULL,
565 .pipe_expandn = NULL,
566 .return_filename = NULL,
567 .self_hostname = NULL,
568 .shadow_message = NULL,
574 .ocsp = OCSP_NOT_REQ,
576 #ifdef EXPERIMENTAL_DSN_INFO
577 .smtp_greeting = NULL,
578 .helo_response = NULL,
580 .authenticator = NULL,
589 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
590 .localpart_cache = { 0 }, /* localpart_cache - ditto */
593 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
594 .basic_errno = ERRNO_UNKNOWNERROR,
597 .special_action = SPECIAL_NONE,
598 .transport_return = DEFER,
599 .prop = { /* fields that are propagated to children */
600 .address_data = NULL,
602 .localpart_data = NULL,
603 .errors_address = NULL,
604 .extra_headers = NULL,
605 .remove_headers = NULL,
607 #ifdef EXPERIMENTAL_SRS_ALT
610 .ignore_error = FALSE,
613 .utf8_downcvt = FALSE,
614 .utf8_downcvt_maybe = FALSE
619 uschar *address_file = NULL;
620 uschar *address_pipe = NULL;
621 tree_node *addresslist_anchor = NULL;
622 int addresslist_count = 0;
623 gid_t *admin_groups = NULL;
625 #ifdef EXPERIMENTAL_ARC
626 struct arc_set *arc_received = NULL;
627 int arc_received_instance = 0;
628 int arc_oldest_pass = 0;
629 const uschar *arc_state = NULL;
630 const uschar *arc_state_reason = NULL;
633 uschar *authenticated_fail_id = NULL;
634 uschar *authenticated_id = NULL;
635 uschar *authenticated_sender = NULL;
636 auth_instance *auths = NULL;
637 uschar *auth_advertise_hosts = US"*";
638 auth_instance auth_defaults = {
642 .options_block = NULL,
644 .advertise_condition = NULL,
645 .client_condition = NULL,
648 .set_client_id = NULL,
649 .mail_auth_condition = NULL,
650 .server_debug_string = NULL,
651 .server_condition = NULL,
657 uschar *auth_defer_msg = US"reason not recorded";
658 uschar *auth_defer_user_msg = US"";
659 uschar *auth_vars[AUTH_VARS];
661 #ifdef WITH_CONTENT_SCAN
662 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
663 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
667 uschar *base62_chars=
668 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
670 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
673 uschar *bi_command = NULL;
674 uschar *big_buffer = NULL;
675 int big_buffer_size = BIG_BUFFER_SIZE;
676 #ifdef EXPERIMENTAL_BRIGHTMAIL
677 uschar *bmi_alt_location = NULL;
678 uschar *bmi_base64_tracker_verdict = NULL;
679 uschar *bmi_base64_verdict = NULL;
680 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
683 uschar *bmi_verdicts = NULL;
685 int bsmtp_transaction_linecount = 0;
686 int body_8bitmime = 0;
687 int body_linecount = 0;
688 int body_zerocount = 0;
689 uschar *bounce_message_file = NULL;
690 uschar *bounce_message_text = NULL;
691 uschar *bounce_recipient = NULL;
692 int bounce_return_linesize_limit = 998;
693 int bounce_return_size_limit = 100*1024;
694 uschar *bounce_sender_authentication = NULL;
696 uschar *callout_address = NULL;
697 int callout_cache_domain_positive_expire = 7*24*60*60;
698 int callout_cache_domain_negative_expire = 3*60*60;
699 int callout_cache_positive_expire = 24*60*60;
700 int callout_cache_negative_expire = 2*60*60;
701 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
702 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
703 int check_log_inodes = 100;
704 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
705 int check_spool_inodes = 100;
706 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
708 uschar *chunking_advertise_hosts = US"*";
709 unsigned chunking_datasize = 0;
710 unsigned chunking_data_left = 0;
711 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
712 const pcre *regex_CHUNKING = NULL;
714 #ifdef EXPERIMENTAL_ESMTP_LIMITS
715 const pcre *regex_LIMITS = NULL;
718 uschar *client_authenticator = NULL;
719 uschar *client_authenticated_id = NULL;
720 uschar *client_authenticated_sender = NULL;
721 int clmacro_count = 0;
722 uschar *clmacros[MAX_CLMACROS];
723 FILE *config_file = NULL;
724 const uschar *config_filename = NULL;
725 int config_lineno = 0;
726 #ifdef CONFIGURE_GROUP
727 gid_t config_gid = CONFIGURE_GROUP;
729 gid_t config_gid = 0;
731 uschar *config_main_filelist = US CONFIGURE_FILE
732 "\0<-----------Space to patch configure_filename->";
733 uschar *config_main_filename = NULL;
734 uschar *config_main_directory = NULL;
736 #ifdef CONFIGURE_OWNER
737 uid_t config_uid = CONFIGURE_OWNER;
739 uid_t config_uid = 0;
742 int connection_max_messages= -1;
743 uschar *continue_proxy_cipher = NULL;
744 BOOL continue_proxy_dane = FALSE;
745 uschar *continue_proxy_sni = NULL;
746 uschar *continue_hostname = NULL;
747 uschar *continue_host_address = NULL;
748 int continue_sequence = 1;
749 uschar *continue_transport = NULL;
750 #ifdef EXPERIMENTAL_ESMTP_LIMITS
751 unsigned continue_limit_mail = 0;
752 unsigned continue_limit_rcpt = 0;
753 unsigned continue_limit_rcptdom= 0;
756 uschar *csa_status = NULL;
758 .callout_hold_only = FALSE, /* verify-only: normal delivery */
759 .delivery = FALSE, /* when to attempt */
760 .defer_pass = FALSE, /* on defer: spool locally */
761 .is_tls = FALSE, /* not a TLS conn yet */
762 .cctx = {.sock = -1}, /* open connection */
763 .nrcpt = 0, /* number of addresses */
766 int daemon_notifier_fd = -1;
767 uschar *daemon_smtp_port = US"smtp";
768 int daemon_startup_retries = 9;
769 int daemon_startup_sleep = 30;
771 #ifdef EXPERIMENTAL_DCC
772 uschar *dcc_header = NULL;
773 uschar *dcc_result = NULL;
774 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
775 uschar *dccifd_options = US"header";
779 FILE *debug_file = NULL;
780 int debug_notall[] = {
785 bit_table debug_options[] = { /* must be in alphabetical order and use
786 only the enum values from macro.h */
790 BIT_TABLE(D, deliver),
794 BIT_TABLE(D, expand),
795 BIT_TABLE(D, filter),
796 BIT_TABLE(D, hints_lookup),
797 BIT_TABLE(D, host_lookup),
799 BIT_TABLE(D, interface),
802 BIT_TABLE(D, local_scan),
803 BIT_TABLE(D, lookup),
804 BIT_TABLE(D, memory),
805 BIT_TABLE(D, noutf8),
807 BIT_TABLE(D, process_info),
808 BIT_TABLE(D, queue_run),
809 BIT_TABLE(D, receive),
810 BIT_TABLE(D, resolver),
812 BIT_TABLE(D, rewrite),
814 BIT_TABLE(D, timestamp),
816 BIT_TABLE(D, transport),
818 BIT_TABLE(D, verify),
820 int debug_options_count = nelem(debug_options);
822 unsigned int debug_selector = 0;
823 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
824 uschar *delay_warning_condition=
826 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
827 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
828 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
830 uschar *deliver_address_data = NULL;
831 int deliver_datafile = -1;
832 const uschar *deliver_domain = NULL;
833 uschar *deliver_domain_data = NULL;
834 const uschar *deliver_domain_orig = NULL;
835 const uschar *deliver_domain_parent = NULL;
836 time_t deliver_frozen_at = 0;
837 uschar *deliver_home = NULL;
838 const uschar *deliver_host = NULL;
839 const uschar *deliver_host_address = NULL;
840 int deliver_host_port = 0;
841 uschar *deliver_in_buffer = NULL;
842 ino_t deliver_inode = 0;
843 uschar *deliver_localpart = NULL;
844 uschar *deliver_localpart_data = NULL;
845 uschar *deliver_localpart_orig = NULL;
846 uschar *deliver_localpart_parent = NULL;
847 uschar *deliver_localpart_prefix = NULL;
848 uschar *deliver_localpart_prefix_v = NULL;
849 uschar *deliver_localpart_suffix = NULL;
850 uschar *deliver_localpart_suffix_v = NULL;
851 uschar *deliver_out_buffer = NULL;
852 int deliver_queue_load_max = -1;
853 address_item *deliver_recipients = NULL;
854 uschar *deliver_selectstring = NULL;
855 uschar *deliver_selectstring_sender = NULL;
858 unsigned dkim_collect_input = 0;
859 uschar *dkim_cur_signer = NULL;
860 int dkim_key_length = 0;
861 void *dkim_signatures = NULL;
862 uschar *dkim_signers = NULL;
863 uschar *dkim_signing_domain = NULL;
864 uschar *dkim_signing_selector = NULL;
865 uschar *dkim_verify_hashes = US"sha256:sha512";
866 uschar *dkim_verify_keytypes = US"ed25519:rsa";
867 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
868 BOOL dkim_verify_minimal = FALSE;
869 uschar *dkim_verify_overall = NULL;
870 uschar *dkim_verify_signers = US"$dkim_signers";
871 uschar *dkim_verify_status = NULL;
872 uschar *dkim_verify_reason = NULL;
875 uschar *dmarc_domain_policy = NULL;
876 uschar *dmarc_forensic_sender = NULL;
877 uschar *dmarc_history_file = NULL;
878 uschar *dmarc_status = NULL;
879 uschar *dmarc_status_text = NULL;
880 uschar *dmarc_tld_file = NULL;
881 uschar *dmarc_used_domain = NULL;
884 uschar *dns_again_means_nonexist = NULL;
885 int dns_csa_search_limit = 5;
886 int dns_cname_loops = 1;
888 int dns_dane_ok = -1;
890 uschar *dns_ipv4_lookup = NULL;
893 int dns_dnssec_ok = -1; /* <0 = not coerced */
894 uschar *dns_trust_aa = NULL;
895 int dns_use_edns0 = -1; /* <0 = not coerced */
896 uschar *dnslist_domain = NULL;
897 uschar *dnslist_matched = NULL;
898 uschar *dnslist_text = NULL;
899 uschar *dnslist_value = NULL;
900 tree_node *domainlist_anchor = NULL;
901 int domainlist_count = 0;
902 uschar *dsn_from = US DEFAULT_DSN_FROM;
904 int errno_quota = ERRNO_QUOTA;
905 uschar *errors_copy = NULL;
906 int error_handling = ERRORS_SENDER;
907 uschar *errors_reply_to = NULL;
908 int errors_sender_rc = EXIT_FAILURE;
909 #ifndef DISABLE_EVENT
910 uschar *event_action = NULL; /* expansion for delivery events */
911 uschar *event_data = NULL; /* auxiliary data variable for event */
912 int event_defer_errno = 0;
913 const uschar *event_name = NULL; /* event name variable */
917 gid_t exim_gid = EXIM_GID;
918 uschar *exim_path = US BIN_DIRECTORY "/exim"
919 "\0<---------------Space to patch exim_path->";
920 uid_t exim_uid = EXIM_UID;
921 int expand_level = 0; /* Nesting depth, indent for debug */
922 int expand_forbid = 0;
923 int expand_nlength[EXPAND_MAXN+1];
924 int expand_nmax = -1;
925 uschar *expand_nstring[EXPAND_MAXN+1];
926 uschar *expand_string_message;
927 uschar *extra_local_interfaces = NULL;
929 int fake_response = OK;
930 uschar *fake_response_text = US"Your message has been rejected but is "
931 "being kept for evaluation.\nIf it was a "
932 "legitimate message, it may still be "
933 "delivered to the target recipient(s).";
934 int filter_n[FILTER_VARIABLE_COUNT];
935 int filter_sn[FILTER_VARIABLE_COUNT];
936 int filter_test = FTEST_NONE;
937 uschar *filter_test_sfile = NULL;
938 uschar *filter_test_ufile = NULL;
939 uschar *filter_thisaddress = NULL;
940 int finduser_retries = 0;
941 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
942 uschar *freeze_tell = NULL;
943 uschar *freeze_tell_config = NULL;
944 uschar *fudged_queue_times = US"";
946 uschar *gecos_name = NULL;
947 uschar *gecos_pattern = NULL;
948 rewrite_rule *global_rewrite_rules = NULL;
950 volatile sig_atomic_t had_command_timeout = 0;
951 volatile sig_atomic_t had_command_sigterm = 0;
952 volatile sig_atomic_t had_data_timeout = 0;
953 volatile sig_atomic_t had_data_sigint = 0;
954 uschar *headers_charset = US HEADERS_CHARSET;
955 int header_insert_maxlen = 64 * 1024;
956 header_line *header_last = NULL;
957 header_line *header_list = NULL;
958 int header_maxsize = HEADER_MAXSIZE;
959 int header_line_maxsize = 0;
961 header_name header_names[] = {
962 /* name len allow_resent htype */
963 { US"bcc", 3, TRUE, htype_bcc },
964 { US"cc", 2, TRUE, htype_cc },
965 { US"date", 4, TRUE, htype_date },
966 { US"delivery-date", 13, FALSE, htype_delivery_date },
967 { US"envelope-to", 11, FALSE, htype_envelope_to },
968 { US"from", 4, TRUE, htype_from },
969 { US"message-id", 10, TRUE, htype_id },
970 { US"received", 8, FALSE, htype_received },
971 { US"reply-to", 8, FALSE, htype_reply_to },
972 { US"return-path", 11, FALSE, htype_return_path },
973 { US"sender", 6, TRUE, htype_sender },
974 { US"subject", 7, FALSE, htype_subject },
975 { US"to", 2, TRUE, htype_to }
978 int header_names_size = nelem(header_names);
980 uschar *helo_accept_junk_hosts = NULL;
981 uschar *helo_allow_chars = US"";
982 uschar *helo_lookup_domains = US"@ : @[]";
983 uschar *helo_try_verify_hosts = NULL;
984 uschar *helo_verify_hosts = NULL;
985 const uschar *hex_digits = CUS"0123456789abcdef";
986 uschar *hold_domains = NULL;
987 uschar *host_data = NULL;
988 uschar *host_lookup = NULL;
989 uschar *host_lookup_order = US"bydns:byaddr";
990 uschar *host_lookup_msg = US"";
992 uschar *host_number_string = NULL;
993 uschar *host_reject_connection = NULL;
994 tree_node *hostlist_anchor = NULL;
995 int hostlist_count = 0;
996 uschar *hosts_treat_as_local = NULL;
997 uschar *hosts_connection_nolog = NULL;
999 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
1000 uschar *ignore_fromline_hosts = NULL;
1001 int inetd_wait_timeout = -1;
1002 uschar *initial_cwd = NULL;
1003 uschar *interface_address = NULL;
1004 int interface_port = -1;
1005 uschar *iterate_item = NULL;
1007 int journal_fd = -1;
1009 uschar *keep_environment = NULL;
1011 int keep_malformed = 4*24*60*60; /* 4 days */
1013 uschar *eldap_dn = NULL;
1014 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1015 uschar *limits_advertise_hosts = US"*";
1017 int load_average = -2;
1018 uschar *local_from_prefix = NULL;
1019 uschar *local_from_suffix = NULL;
1022 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1024 uschar *local_interfaces = US"0.0.0.0";
1027 #ifdef HAVE_LOCAL_SCAN
1028 uschar *local_scan_data = NULL;
1029 int local_scan_timeout = 5*60;
1031 gid_t local_user_gid = (gid_t)(-1);
1032 uid_t local_user_uid = (uid_t)(-1);
1034 tree_node *localpartlist_anchor= NULL;
1035 int localpartlist_count = 0;
1036 uschar *log_buffer = NULL;
1038 int log_default[] = { /* for initializing log_selector */
1039 Li_acl_warn_skipped,
1040 Li_connection_reject,
1045 Li_host_lookup_failed,
1046 Li_lost_incoming_connection,
1047 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1050 Li_queue_time_exclusive,
1053 Li_sender_verify_fail,
1056 Li_smtp_confirmation,
1057 Li_tls_certificate_verified,
1062 uschar *log_file_path = US LOG_FILE_PATH
1063 "\0<--------------Space to patch log_file_path->";
1065 int log_notall[] = {
1068 bit_table log_options[] = { /* must be in alphabetical order,
1069 with definitions from enum logbit. */
1070 BIT_TABLE(L, 8bitmime),
1071 BIT_TABLE(L, acl_warn_skipped),
1072 BIT_TABLE(L, address_rewrite),
1074 BIT_TABLE(L, all_parents),
1075 BIT_TABLE(L, arguments),
1076 BIT_TABLE(L, connection_reject),
1077 BIT_TABLE(L, delay_delivery),
1078 BIT_TABLE(L, deliver_time),
1079 BIT_TABLE(L, delivery_size),
1080 #ifndef DISABLE_DKIM
1082 BIT_TABLE(L, dkim_verbose),
1084 BIT_TABLE(L, dnslist_defer),
1085 BIT_TABLE(L, dnssec),
1087 BIT_TABLE(L, host_lookup_failed),
1088 BIT_TABLE(L, ident_timeout),
1089 BIT_TABLE(L, incoming_interface),
1090 BIT_TABLE(L, incoming_port),
1091 BIT_TABLE(L, lost_incoming_connection),
1092 BIT_TABLE(L, millisec),
1093 BIT_TABLE(L, msg_id),
1094 BIT_TABLE(L, msg_id_created),
1095 BIT_TABLE(L, outgoing_interface),
1096 BIT_TABLE(L, outgoing_port),
1098 BIT_TABLE(L, pipelining),
1099 BIT_TABLE(L, protocol_detail),
1100 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1101 BIT_TABLE(L, proxy),
1103 BIT_TABLE(L, queue_run),
1104 BIT_TABLE(L, queue_time),
1105 BIT_TABLE(L, queue_time_exclusive),
1106 BIT_TABLE(L, queue_time_overall),
1107 BIT_TABLE(L, receive_time),
1108 BIT_TABLE(L, received_recipients),
1109 BIT_TABLE(L, received_sender),
1110 BIT_TABLE(L, rejected_header),
1111 { US"rejected_headers", Li_rejected_header },
1112 BIT_TABLE(L, retry_defer),
1113 BIT_TABLE(L, return_path_on_delivery),
1114 BIT_TABLE(L, sender_on_delivery),
1115 BIT_TABLE(L, sender_verify_fail),
1116 BIT_TABLE(L, size_reject),
1117 BIT_TABLE(L, skip_delivery),
1118 BIT_TABLE(L, smtp_confirmation),
1119 BIT_TABLE(L, smtp_connection),
1120 BIT_TABLE(L, smtp_incomplete_transaction),
1121 BIT_TABLE(L, smtp_mailauth),
1122 BIT_TABLE(L, smtp_no_mail),
1123 BIT_TABLE(L, smtp_protocol_error),
1124 BIT_TABLE(L, smtp_syntax_error),
1125 BIT_TABLE(L, subject),
1126 BIT_TABLE(L, tls_certificate_verified),
1127 BIT_TABLE(L, tls_cipher),
1128 BIT_TABLE(L, tls_peerdn),
1129 BIT_TABLE(L, tls_resumption),
1130 BIT_TABLE(L, tls_sni),
1131 BIT_TABLE(L, unknown_in_list),
1133 int log_options_count = nelem(log_options);
1135 int log_reject_target = 0;
1136 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1137 uschar *log_selector_string = NULL;
1138 FILE *log_stderr = NULL;
1139 uschar *login_sender_address = NULL;
1140 uschar *lookup_dnssec_authenticated = NULL;
1141 int lookup_open_max = 25;
1142 uschar *lookup_value = NULL;
1144 macro_item *macros_user = NULL;
1145 uschar *mailstore_basename = NULL;
1146 #ifdef WITH_CONTENT_SCAN
1147 uschar *malware_name = NULL; /* Virus Name */
1149 int max_received_linelength= 0;
1150 int max_username_length = 0;
1151 int message_age = 0;
1152 uschar *message_body = NULL;
1153 uschar *message_body_end = NULL;
1154 int message_body_size = 0;
1155 int message_body_visible = 500;
1156 int message_ended = END_NOTSTARTED;
1157 uschar *message_headers = NULL;
1159 uschar *message_id_domain = NULL;
1160 uschar *message_id_text = NULL;
1161 struct timeval message_id_tv = { 0, 0 };
1162 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1163 uschar *message_id_external;
1164 int message_linecount = 0;
1165 int message_size = 0;
1166 uschar *message_size_limit = US"50M";
1168 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1170 uschar message_subdir[2] = { 0, 0 };
1171 uschar *message_reference = NULL;
1173 /* MIME ACL expandables */
1174 #ifdef WITH_CONTENT_SCAN
1175 int mime_anomaly_level = 0;
1176 const uschar *mime_anomaly_text = NULL;
1177 uschar *mime_boundary = NULL;
1178 uschar *mime_charset = NULL;
1179 uschar *mime_content_description = NULL;
1180 uschar *mime_content_disposition = NULL;
1181 uschar *mime_content_id = NULL;
1182 unsigned int mime_content_size = 0;
1183 uschar *mime_content_transfer_encoding = NULL;
1184 uschar *mime_content_type = NULL;
1185 uschar *mime_decoded_filename = NULL;
1186 uschar *mime_filename = NULL;
1187 int mime_is_multipart = 0;
1188 int mime_is_coverletter = 0;
1189 int mime_is_rfc822 = 0;
1190 int mime_part_count = -1;
1193 uid_t *never_users = NULL;
1194 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1196 const int on = 1; /* for setsockopt */
1199 uid_t original_euid;
1200 gid_t originator_gid;
1201 uschar *originator_login = NULL;
1202 uschar *originator_name = NULL;
1203 uid_t originator_uid;
1204 uschar *override_local_interfaces = NULL;
1205 uschar *override_pid_file_path = NULL;
1207 uschar *percent_hack_domains = NULL;
1208 uschar *pid_file_path = US PID_FILE_PATH
1209 "\0<--------------Space to patch pid_file_path->";
1210 #ifndef DISABLE_PIPE_CONNECT
1211 uschar *pipe_connect_advertise_hosts = US"*";
1213 uschar *pipelining_advertise_hosts = US"*";
1214 uschar *primary_hostname = NULL;
1215 uschar *process_info;
1216 int process_info_len = 0;
1217 uschar *process_log_path = NULL;
1218 const uschar *process_purpose = US"fresh-exec";
1220 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1221 uschar *hosts_proxy = NULL;
1222 uschar *proxy_external_address = NULL;
1223 int proxy_external_port = 0;
1224 uschar *proxy_local_address = NULL;
1225 int proxy_local_port = 0;
1226 int proxy_protocol_timeout = 3;
1229 uschar *prvscheck_address = NULL;
1230 uschar *prvscheck_keynum = NULL;
1231 uschar *prvscheck_result = NULL;
1234 const uschar *qualify_domain_recipient = NULL;
1235 uschar *qualify_domain_sender = NULL;
1236 uschar *queue_domains = NULL;
1237 int queue_interval = -1;
1238 uschar *queue_name = US"";
1239 uschar *queue_name_dest = NULL;
1240 uschar *queue_only_file = NULL;
1241 int queue_only_load = -1;
1242 uschar *queue_run_max = US"5";
1243 pid_t queue_run_pid = (pid_t)0;
1244 int queue_run_pipe = -1;
1245 unsigned queue_size = 0;
1246 time_t queue_size_next = 0;
1247 uschar *queue_smtp_domains = NULL;
1249 uint32_t random_seed = 0;
1250 tree_node *ratelimiters_cmd = NULL;
1251 tree_node *ratelimiters_conn = NULL;
1252 tree_node *ratelimiters_mail = NULL;
1253 uschar *raw_active_hostname = NULL;
1254 uschar *raw_sender = NULL;
1255 uschar **raw_recipients = NULL;
1256 int raw_recipients_count = 0;
1259 int rcpt_fail_count = 0;
1260 int rcpt_defer_count = 0;
1263 int receive_linecount = 0;
1264 int receive_messagecount = 0;
1265 int receive_timeout = 0;
1266 int received_count = 0;
1267 uschar *received_for = NULL;
1269 /* This is the default text for Received headers generated by Exim. The
1270 date will be automatically added on the end. */
1272 uschar *received_header_text = US
1274 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1275 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1276 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1277 "by $primary_hostname "
1278 "${if def:received_protocol {with $received_protocol }}"
1280 "${if def:tls_in_ver { ($tls_in_ver)}}"
1281 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1283 "(Exim $version_number)\n\t"
1284 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1285 "id $message_exim_id"
1286 "${if def:received_for {\n\tfor $received_for}}"
1287 "\0<---------------Space to patch received_header_text->";
1289 int received_headers_max = 30;
1290 uschar *received_protocol = NULL;
1291 struct timeval received_time = { 0, 0 };
1292 struct timeval received_time_complete = { 0, 0 };
1293 uschar *recipient_data = NULL;
1294 uschar *recipient_unqualified_hosts = NULL;
1295 uschar *recipient_verify_failure = NULL;
1296 int recipients_count = 0;
1297 recipient_item *recipients_list = NULL;
1298 int recipients_list_max = 0;
1299 int recipients_max = 50000;
1300 const pcre *regex_AUTH = NULL;
1301 const pcre *regex_check_dns_names = NULL;
1302 const pcre *regex_From = NULL;
1303 const pcre *regex_IGNOREQUOTA = NULL;
1304 const pcre *regex_PIPELINING = NULL;
1305 const pcre *regex_SIZE = NULL;
1306 #ifndef DISABLE_PIPE_CONNECT
1307 const pcre *regex_EARLY_PIPE = NULL;
1309 const pcre *regex_ismsgid = NULL;
1310 const pcre *regex_smtp_code = NULL;
1311 uschar *regex_vars[REGEX_VARS];
1312 #ifdef WHITELIST_D_MACROS
1313 const pcre *regex_whitelisted_macro = NULL;
1315 #ifdef WITH_CONTENT_SCAN
1316 uschar *regex_match_string = NULL;
1318 int remote_delivery_count = 0;
1319 int remote_max_parallel = 2;
1320 uschar *remote_sort_domains = NULL;
1321 int retry_data_expire = 7*24*60*60;
1322 int retry_interval_max = 24*60*60;
1323 int retry_maximum_timeout = 0; /* set from retry config */
1324 retry_config *retries = NULL;
1325 uschar *return_path = NULL;
1326 int rewrite_existflags = 0;
1327 uschar *rfc1413_hosts = US"@[]";
1328 int rfc1413_query_timeout = 0;
1329 uid_t root_gid = ROOT_GID;
1330 uid_t root_uid = ROOT_UID;
1332 router_instance *routers = NULL;
1333 router_instance router_defaults = {
1337 .options_block = NULL,
1338 .driver_name = NULL,
1340 .address_data = NULL,
1341 #ifdef EXPERIMENTAL_BRIGHTMAIL
1344 .cannot_route_message = NULL,
1346 .current_directory = NULL,
1347 .debug_string = NULL,
1352 .expand_more = NULL,
1353 .expand_unseen = NULL,
1354 .extra_headers = NULL,
1355 .fallback_hosts = NULL,
1356 .home_directory = NULL,
1357 .ignore_target_hosts = NULL,
1358 .local_parts = NULL,
1359 .pass_router_name = NULL,
1361 .redirect_router_name = NULL,
1362 .remove_headers = NULL,
1363 .require_files = NULL,
1364 .router_home_directory = NULL,
1368 .translate_ip_address = NULL,
1369 .transport_name = NULL,
1371 .address_test = TRUE,
1372 #ifdef EXPERIMENTAL_BRIGHTMAIL
1373 .bmi_deliver_alternate = FALSE,
1374 .bmi_deliver_default = FALSE,
1375 .bmi_dont_deliver = FALSE,
1378 .caseful_local_part = FALSE,
1379 .check_local_user = FALSE,
1380 .disable_logging = FALSE,
1381 .fail_verify_recipient = FALSE,
1382 .fail_verify_sender = FALSE,
1384 .initgroups = FALSE,
1385 .log_as_local = TRUE_UNSET,
1387 .pass_on_timeout = FALSE,
1388 .prefix_optional = FALSE,
1390 .retry_use_local_part = TRUE_UNSET,
1391 .same_domain_copy_routing = FALSE,
1392 .self_rewrite = FALSE,
1394 .suffix_optional = FALSE,
1395 .verify_only = FALSE,
1396 .verify_recipient = TRUE,
1397 .verify_sender = TRUE,
1400 .dsn_lasthop = FALSE,
1402 .self_code = self_freeze,
1406 .fallback_hostlist = NULL,
1408 .pass_router = NULL,
1409 .redirect_router = NULL,
1411 .dnssec = { .request= US"*", .require=NULL },
1414 uschar *router_name = NULL;
1415 tree_node *router_var = NULL;
1417 ip_address_item *running_interfaces = NULL;
1419 /* This is a weird one. The following string gets patched in the binary by the
1420 script that sets up a copy of Exim for running in the test harness. It seems
1421 that compilers are now clever, and share constant strings if they can.
1422 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1423 make use of the end of this string in order to save space. So the patching then
1424 wrecks this. We defeat this optimization by adding some additional characters
1425 onto the end of the string. */
1427 uschar *running_status = US">>>running<<<" "\0EXTRA";
1431 uschar *search_error_message = NULL;
1432 uschar *self_hostname = NULL;
1433 uschar *sender_address = NULL;
1434 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1435 uschar *sender_address_data = NULL;
1436 uschar *sender_address_unrewritten = NULL;
1437 uschar *sender_data = NULL;
1438 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1439 uschar *sender_fullhost = NULL;
1440 uschar *sender_helo_name = NULL;
1441 uschar **sender_host_aliases = &no_aliases;
1442 uschar *sender_host_address = NULL;
1443 uschar *sender_host_authenticated = NULL;
1444 uschar *sender_host_auth_pubname = NULL;
1445 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1446 uschar *sender_host_name = NULL;
1447 int sender_host_port = 0;
1448 uschar *sender_ident = NULL;
1449 uschar *sender_rate = NULL;
1450 uschar *sender_rate_limit = NULL;
1451 uschar *sender_rate_period = NULL;
1452 uschar *sender_rcvhost = NULL;
1453 uschar *sender_unqualified_hosts = NULL;
1454 uschar *sender_verify_failure = NULL;
1455 address_item *sender_verified_list = NULL;
1456 address_item *sender_verified_failed = NULL;
1457 int sender_verified_rc = -1;
1458 uschar *sending_ip_address = NULL;
1459 int sending_port = -1;
1460 SIGNAL_BOOL sigalrm_seen = FALSE;
1461 const uschar *sigalarm_setter = NULL;
1462 uschar **sighup_argv = NULL;
1463 int slow_lookup_log = 0; /* millisecs, zero disables */
1464 int smtp_accept_count = 0;
1465 int smtp_accept_max = 20;
1466 int smtp_accept_max_nonmail= 10;
1467 uschar *smtp_accept_max_nonmail_hosts = US"*";
1468 uschar *smtp_accept_max_per_connection = US"1000";
1469 uschar *smtp_accept_max_per_host = NULL;
1470 int smtp_accept_queue = 0;
1471 int smtp_accept_queue_per_connection = 10;
1472 int smtp_accept_reserve = 0;
1473 uschar *smtp_active_hostname = NULL;
1474 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1475 "Exim $version_number $tod_full"
1476 "\0<---------------Space to patch smtp_banner->";
1477 int smtp_ch_index = 0;
1478 uschar *smtp_cmd_argument = NULL;
1479 uschar *smtp_cmd_buffer = NULL;
1480 struct timeval smtp_connection_start = {0,0};
1481 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1482 int smtp_connect_backlog = 20;
1483 double smtp_delay_mail = 0.0;
1484 double smtp_delay_rcpt = 0.0;
1485 FILE *smtp_in = NULL;
1486 int smtp_load_reserve = -1;
1487 int smtp_mailcmd_count = 0;
1488 FILE *smtp_out = NULL;
1489 uschar *smtp_etrn_command = NULL;
1490 int smtp_max_synprot_errors= 3;
1491 int smtp_max_unknown_commands = 3;
1492 uschar *smtp_notquit_reason = NULL;
1493 unsigned smtp_peer_options = 0;
1494 unsigned smtp_peer_options_wrap= 0;
1495 uschar *smtp_ratelimit_hosts = NULL;
1496 uschar *smtp_ratelimit_mail = NULL;
1497 uschar *smtp_ratelimit_rcpt = NULL;
1498 uschar *smtp_read_error = US"";
1499 int smtp_receive_timeout = 5*60;
1500 uschar *smtp_receive_timeout_s = NULL;
1501 uschar *smtp_reserve_hosts = NULL;
1502 int smtp_rlm_base = 0;
1503 double smtp_rlm_factor = 0.0;
1504 int smtp_rlm_limit = 0;
1505 int smtp_rlm_threshold = INT_MAX;
1506 int smtp_rlr_base = 0;
1507 double smtp_rlr_factor = 0.0;
1508 int smtp_rlr_limit = 0;
1509 int smtp_rlr_threshold = INT_MAX;
1511 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1514 #ifdef WITH_CONTENT_SCAN
1515 uschar *spamd_address = US"127.0.0.1 783";
1516 uschar *spam_bar = NULL;
1517 uschar *spam_report = NULL;
1518 uschar *spam_action = NULL;
1519 uschar *spam_score = NULL;
1520 uschar *spam_score_int = NULL;
1523 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1524 uschar *spf_header_comment = NULL;
1525 uschar *spf_received = NULL;
1526 uschar *spf_result = NULL;
1527 uschar *spf_smtp_comment = NULL;
1528 uschar *spf_smtp_comment_template
1529 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1530 = US"Please%_see%_http://www.open-spf.org/Why";
1534 FILE *spool_data_file = NULL;
1535 uschar *spool_directory = US SPOOL_DIRECTORY
1536 "\0<--------------Space to patch spool_directory->";
1537 #ifdef EXPERIMENTAL_SRS_ALT
1538 uschar *srs_config = NULL;
1539 uschar *srs_db_address = NULL;
1540 uschar *srs_db_key = NULL;
1541 int srs_hashlength = 6;
1542 int srs_hashmin = -1;
1543 int srs_maxage = 31;
1544 uschar *srs_orig_recipient = NULL;
1545 uschar *srs_orig_sender = NULL;
1546 uschar *srs_recipient = NULL;
1547 uschar *srs_secrets = NULL;
1548 uschar *srs_status = NULL;
1551 uschar *srs_recipient = NULL;
1553 int string_datestamp_offset= -1;
1554 int string_datestamp_length= 0;
1555 int string_datestamp_type = -1;
1556 const uschar *submission_domain = NULL;
1557 const uschar *submission_name = NULL;
1558 int syslog_facility = LOG_MAIL;
1559 uschar *syslog_processname = US"exim";
1560 uschar *system_filter = NULL;
1562 uschar *system_filter_directory_transport = NULL;
1563 uschar *system_filter_file_transport = NULL;
1564 uschar *system_filter_pipe_transport = NULL;
1565 uschar *system_filter_reply_transport = NULL;
1567 gid_t system_filter_gid = 0;
1568 uid_t system_filter_uid = (uid_t)-1;
1570 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1571 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1572 #ifdef USE_TCP_WRAPPERS
1573 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1575 int test_harness_load_avg = 0;
1576 int thismessage_size_limit = 0;
1577 int timeout_frozen_after = 0;
1578 #ifdef MEASURE_TIMING
1579 struct timeval timestamp_startup;
1582 transport_instance *transports = NULL;
1584 transport_instance transport_defaults = {
1585 /* All non-mentioned elements zero/NULL/FALSE */
1587 .multi_domain = TRUE,
1588 .max_addresses = 100,
1589 .connection_max_messages = 500,
1592 .filter_timeout = 300,
1593 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1594 1 nor 0 so can detect unset */
1597 int transport_count;
1598 uschar *transport_name = NULL;
1599 int transport_newlines;
1600 const uschar **transport_filter_argv = NULL;
1601 int transport_filter_timeout;
1602 int transport_write_timeout= 0;
1604 tree_node *tree_dns_fails = NULL;
1605 tree_node *tree_duplicates = NULL;
1606 tree_node *tree_nonrecipients = NULL;
1607 tree_node *tree_unusable = NULL;
1609 gid_t *trusted_groups = NULL;
1610 uid_t *trusted_users = NULL;
1611 uschar *timezone_string = US TIMEZONE_DEFAULT;
1613 uschar *unknown_login = NULL;
1614 uschar *unknown_username = NULL;
1615 uschar *untrusted_set_sender = NULL;
1617 /* A regex for matching a "From_" line in an incoming message, in the form
1619 From ph10 Fri Jan 5 12:35 GMT 1996
1621 which the "mail" commands send to the MTA (undocumented, of course), or in
1624 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1626 which is apparently used by some UUCPs, despite it not being in RFC 976.
1627 Because of variations in time formats, just match up to the minutes. That
1628 should be sufficient. Examples have been seen of time fields like 12:1:03,
1629 so just require one digit for hours and minutes. The weekday is also absent
1632 uschar *uucp_from_pattern = US
1633 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1634 "(?:" /* Non-extracting bracket */
1635 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1636 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1637 ")" /* End alternation */
1638 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1640 uschar *uucp_from_sender = US"$1";
1642 uschar *verify_mode = NULL;
1643 uschar *version_copyright =
1644 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1645 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020";
1646 uschar *version_date = US"?";
1647 uschar *version_cnumber = US"????";
1648 uschar *version_string = US"?";
1650 uschar *warn_message_file = NULL;
1651 int warning_count = 0;
1652 uschar *warnmsg_delay = NULL;
1653 uschar *warnmsg_recipients = NULL;
1656 /* End of globals.c */