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,
231 .chunking_offered = FALSE,
232 .config_changed = FALSE,
233 .continue_more = FALSE,
235 .daemon_listen = FALSE,
236 .debug_daemon = FALSE,
237 .deliver_firsttime = FALSE,
238 .deliver_force = FALSE,
239 .deliver_freeze = FALSE,
240 .deliver_force_thaw = FALSE,
241 .deliver_manual_thaw = FALSE,
242 .deliver_selectstring_regex = FALSE,
243 .deliver_selectstring_sender_regex = FALSE,
244 .disable_callout_flush = FALSE,
245 .disable_delay_flush = FALSE,
246 .disable_logging = FALSE,
248 .dkim_disable_verify = FALSE,
249 .dkim_init_done = FALSE,
252 .dmarc_has_been_checked = FALSE,
253 .dmarc_disable_verify = FALSE,
254 .dmarc_enable_forensic = FALSE,
256 .dont_deliver = FALSE,
259 .enable_dollar_recipients = FALSE,
260 .expand_string_forcedfail = FALSE,
262 .filter_running = FALSE,
264 .header_rewritten = FALSE,
265 .helo_verified = FALSE,
266 .helo_verify_failed = FALSE,
267 .host_checking_callout = FALSE,
268 .host_find_failed_syntax= FALSE,
270 .inetd_wait_mode = FALSE,
273 .local_error_message = FALSE,
274 .log_testing_mode = FALSE,
276 #ifdef WITH_CONTENT_SCAN
277 .no_mbox_unspool = FALSE,
279 .no_multiline_responses = FALSE,
281 .parse_allow_group = FALSE,
282 .parse_found_group = FALSE,
283 .pipelining_enable = TRUE,
284 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
285 .proxy_session_failed = FALSE,
288 .queue_2stage = FALSE,
289 .queue_only_policy = FALSE,
290 .queue_run_first_delivery = FALSE,
291 .queue_run_force = FALSE,
292 .queue_run_local = FALSE,
293 .queue_running = FALSE,
297 .receive_call_bombout = FALSE,
298 .recipients_discarded = FALSE,
299 .running_in_test_harness = FALSE,
301 .search_find_defer = FALSE,
302 .sender_address_forced = FALSE,
303 .sender_host_notsocket = FALSE,
304 .sender_host_unknown = FALSE,
305 .sender_local = FALSE,
306 .sender_name_forced = FALSE,
307 .sender_set_untrusted = FALSE,
308 .smtp_authenticated = FALSE,
309 #ifndef DISABLE_PIPE_CONNECT
310 .smtp_in_early_pipe_advertised = FALSE,
311 .smtp_in_early_pipe_no_auth = FALSE,
312 .smtp_in_early_pipe_used = FALSE,
314 .smtp_in_pipelining_advertised = FALSE,
315 .smtp_in_pipelining_used = FALSE,
316 .smtp_in_quit = FALSE,
317 .spool_file_wireformat = FALSE,
318 .submission_mode = FALSE,
319 .suppress_local_fixups = FALSE,
320 .suppress_local_fixups_default = FALSE,
321 .synchronous_delivery = FALSE,
322 .system_filtering = FALSE,
324 .taint_check_slow = FALSE,
325 .testsuite_delays = TRUE,
326 .tcp_fastopen_ok = FALSE,
327 .tcp_in_fastopen = FALSE,
328 .tcp_in_fastopen_data = FALSE,
329 .tcp_in_fastopen_logged = FALSE,
330 .tcp_out_fastopen_logged= FALSE,
331 .timestamps_utc = FALSE,
332 .transport_filter_timed_out = FALSE,
333 .trusted_caller = FALSE,
334 .trusted_config = TRUE,
337 /******************************************************************************/
338 /* These are the flags which are either variables or mainsection options,
339 so an address is needed for access, or are exported to local_scan. */
341 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
342 BOOL allow_domain_literals = FALSE;
343 BOOL allow_mx_to_ip = FALSE;
344 BOOL allow_utf8_domains = FALSE;
345 BOOL authentication_failed = FALSE;
347 BOOL bounce_return_body = TRUE;
348 BOOL bounce_return_message = TRUE;
349 BOOL check_rfc2047_length = TRUE;
350 BOOL commandline_checks_require_admin = FALSE;
352 #ifdef EXPERIMENTAL_DCC
353 BOOL dcc_direct_add_header = FALSE;
355 BOOL debug_store = FALSE;
356 BOOL delivery_date_remove = TRUE;
357 BOOL deliver_drop_privilege = FALSE;
358 #ifdef ENABLE_DISABLE_FSYNC
359 BOOL disable_fsync = FALSE;
361 BOOL disable_ipv6 = FALSE;
362 BOOL dns_csa_use_reverse = TRUE;
363 BOOL drop_cr = FALSE; /* No longer used */
365 BOOL envelope_to_remove = TRUE;
366 BOOL exim_gid_set = TRUE; /* This gid is always set */
367 BOOL exim_uid_set = TRUE; /* This uid is always set */
368 BOOL extract_addresses_remove_arguments = TRUE;
370 BOOL host_checking = FALSE;
371 BOOL host_lookup_deferred = FALSE;
372 BOOL host_lookup_failed = FALSE;
373 BOOL ignore_fromline_local = FALSE;
375 BOOL local_from_check = TRUE;
376 BOOL local_sender_retain = FALSE;
377 BOOL log_timezone = FALSE;
378 BOOL message_body_newlines = FALSE;
379 BOOL message_logs = TRUE;
381 BOOL message_smtputf8 = FALSE;
383 BOOL mua_wrapper = FALSE;
385 BOOL preserve_message_logs = FALSE;
386 BOOL print_topbitchars = FALSE;
387 BOOL prod_requires_admin = TRUE;
388 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
389 BOOL proxy_session = FALSE;
392 #ifndef DISABLE_QUEUE_RAMP
393 BOOL queue_fast_ramp = FALSE;
395 BOOL queue_list_requires_admin = TRUE;
396 BOOL queue_only = FALSE;
397 BOOL queue_only_load_latch = TRUE;
398 BOOL queue_only_override = TRUE;
399 BOOL queue_run_in_order = FALSE;
400 BOOL recipients_max_reject = FALSE;
401 BOOL return_path_remove = TRUE;
403 BOOL smtp_batched_input = FALSE;
404 BOOL sender_helo_dnssec = FALSE;
405 BOOL sender_host_dnssec = FALSE;
406 BOOL smtp_accept_keepalive = TRUE;
407 BOOL smtp_check_spool_space = TRUE;
408 BOOL smtp_enforce_sync = TRUE;
409 BOOL smtp_etrn_serialize = TRUE;
410 BOOL smtp_input = FALSE;
411 BOOL smtp_return_error_details = FALSE;
413 BOOL spf_result_guessed = FALSE;
415 BOOL split_spool_directory = FALSE;
416 BOOL spool_wireformat = FALSE;
417 #ifdef EXPERIMENTAL_SRS_ALT
418 BOOL srs_usehash = TRUE;
419 BOOL srs_usetimestamp = TRUE;
421 BOOL strict_acl_vars = FALSE;
422 BOOL strip_excess_angle_brackets = FALSE;
423 BOOL strip_trailing_dot = FALSE;
424 BOOL syslog_duplication = TRUE;
425 BOOL syslog_pid = TRUE;
426 BOOL syslog_timestamp = TRUE;
427 BOOL system_filter_gid_set = FALSE;
428 BOOL system_filter_uid_set = FALSE;
430 BOOL tcp_nodelay = TRUE;
431 BOOL write_rejectlog = TRUE;
433 /******************************************************************************/
435 header_line *acl_added_headers = NULL;
436 tree_node *acl_anchor = NULL;
437 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
438 NULL, NULL, NULL, NULL};
443 uschar *acl_not_smtp = NULL;
444 #ifdef WITH_CONTENT_SCAN
445 uschar *acl_not_smtp_mime = NULL;
447 uschar *acl_not_smtp_start = NULL;
448 uschar *acl_removed_headers = NULL;
449 uschar *acl_smtp_auth = NULL;
450 uschar *acl_smtp_connect = NULL;
451 uschar *acl_smtp_data = NULL;
453 uschar *acl_smtp_data_prdr = US"accept";
456 uschar *acl_smtp_dkim = NULL;
458 uschar *acl_smtp_etrn = NULL;
459 uschar *acl_smtp_expn = NULL;
460 uschar *acl_smtp_helo = NULL;
461 uschar *acl_smtp_mail = NULL;
462 uschar *acl_smtp_mailauth = NULL;
463 #ifdef WITH_CONTENT_SCAN
464 uschar *acl_smtp_mime = NULL;
466 uschar *acl_smtp_notquit = NULL;
467 uschar *acl_smtp_predata = NULL;
468 uschar *acl_smtp_quit = NULL;
469 uschar *acl_smtp_rcpt = NULL;
470 uschar *acl_smtp_starttls = NULL;
471 uschar *acl_smtp_vrfy = NULL;
473 tree_node *acl_var_c = NULL;
474 tree_node *acl_var_m = NULL;
475 uschar *acl_verify_message = NULL;
476 string_item *acl_warn_logged = NULL;
478 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
479 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
481 uschar *acl_wherenames[] = { US"RCPT",
506 uschar *acl_wherecodes[] = { US"550", /* RCPT */
508 US"550", /* PREDATA */
513 US"550", /* RCPT PRDR */
515 US"0", /* not SMTP; not relevant */
517 US"550", /* connect */
520 US"550", /* HELO/EHLO */
521 US"0", /* MAILAUTH; not relevant */
522 US"0", /* not SMTP; not relevant */
523 US"0", /* NOTQUIT; not relevant */
524 US"0", /* QUIT; not relevant */
525 US"550", /* STARTTLS */
527 US"0", /* delivery; not relevant */
528 US"0" /* unknown; not relevant */
531 uschar *add_environment = NULL;
532 address_item *addr_duplicate = NULL;
534 address_item address_defaults = {
539 .start_router = NULL,
544 .fallback_hosts = NULL,
549 .cc_local_part = NULL,
550 .lc_local_part = NULL,
557 .address_retry_key = NULL,
558 .domain_retry_key = NULL,
562 .user_message = NULL,
563 .onetime_parent = NULL,
564 .pipe_expandn = NULL,
565 .return_filename = NULL,
566 .self_hostname = NULL,
567 .shadow_message = NULL,
573 .ocsp = OCSP_NOT_REQ,
575 #ifdef EXPERIMENTAL_DSN_INFO
576 .smtp_greeting = NULL,
577 .helo_response = NULL,
579 .authenticator = NULL,
588 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
589 .localpart_cache = { 0 }, /* localpart_cache - ditto */
592 .delivery_time = {.tv_sec = 0, .tv_usec = 0},
593 .basic_errno = ERRNO_UNKNOWNERROR,
596 .special_action = SPECIAL_NONE,
597 .transport_return = DEFER,
598 .prop = { /* fields that are propagated to children */
599 .address_data = NULL,
601 .localpart_data = NULL,
602 .errors_address = NULL,
603 .extra_headers = NULL,
604 .remove_headers = NULL,
606 #ifdef EXPERIMENTAL_SRS_ALT
609 .ignore_error = FALSE,
612 .utf8_downcvt = FALSE,
613 .utf8_downcvt_maybe = FALSE
618 uschar *address_file = NULL;
619 uschar *address_pipe = NULL;
620 tree_node *addresslist_anchor = NULL;
621 int addresslist_count = 0;
622 gid_t *admin_groups = NULL;
624 #ifdef EXPERIMENTAL_ARC
625 struct arc_set *arc_received = NULL;
626 int arc_received_instance = 0;
627 int arc_oldest_pass = 0;
628 const uschar *arc_state = NULL;
629 const uschar *arc_state_reason = NULL;
632 uschar *authenticated_fail_id = NULL;
633 uschar *authenticated_id = NULL;
634 uschar *authenticated_sender = NULL;
635 auth_instance *auths = NULL;
636 uschar *auth_advertise_hosts = US"*";
637 auth_instance auth_defaults = {
641 .options_block = NULL,
643 .advertise_condition = NULL,
644 .client_condition = NULL,
647 .set_client_id = NULL,
648 .mail_auth_condition = NULL,
649 .server_debug_string = NULL,
650 .server_condition = NULL,
656 uschar *auth_defer_msg = US"reason not recorded";
657 uschar *auth_defer_user_msg = US"";
658 uschar *auth_vars[AUTH_VARS];
660 #ifdef WITH_CONTENT_SCAN
661 int av_failed = FALSE; /* boolean but accessed as vtype_int*/
662 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
666 uschar *base62_chars=
667 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
669 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
672 uschar *bi_command = NULL;
673 uschar *big_buffer = NULL;
674 int big_buffer_size = BIG_BUFFER_SIZE;
675 #ifdef EXPERIMENTAL_BRIGHTMAIL
676 uschar *bmi_alt_location = NULL;
677 uschar *bmi_base64_tracker_verdict = NULL;
678 uschar *bmi_base64_verdict = NULL;
679 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
682 uschar *bmi_verdicts = NULL;
684 int bsmtp_transaction_linecount = 0;
685 int body_8bitmime = 0;
686 int body_linecount = 0;
687 int body_zerocount = 0;
688 uschar *bounce_message_file = NULL;
689 uschar *bounce_message_text = NULL;
690 uschar *bounce_recipient = NULL;
691 int bounce_return_linesize_limit = 998;
692 int bounce_return_size_limit = 100*1024;
693 uschar *bounce_sender_authentication = NULL;
695 uschar *callout_address = NULL;
696 int callout_cache_domain_positive_expire = 7*24*60*60;
697 int callout_cache_domain_negative_expire = 3*60*60;
698 int callout_cache_positive_expire = 24*60*60;
699 int callout_cache_negative_expire = 2*60*60;
700 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
701 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
702 int check_log_inodes = 100;
703 int_eximarith_t check_log_space = 10*1024; /* 10K Kbyte == 10MB */
704 int check_spool_inodes = 100;
705 int_eximarith_t check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
707 uschar *chunking_advertise_hosts = US"*";
708 unsigned chunking_datasize = 0;
709 unsigned chunking_data_left = 0;
710 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
711 const pcre *regex_CHUNKING = NULL;
713 #ifdef EXPERIMENTAL_ESMTP_LIMITS
714 const pcre *regex_LIMITS = NULL;
717 uschar *client_authenticator = NULL;
718 uschar *client_authenticated_id = NULL;
719 uschar *client_authenticated_sender = NULL;
720 int clmacro_count = 0;
721 uschar *clmacros[MAX_CLMACROS];
722 FILE *config_file = NULL;
723 const uschar *config_filename = NULL;
724 int config_lineno = 0;
725 #ifdef CONFIGURE_GROUP
726 gid_t config_gid = CONFIGURE_GROUP;
728 gid_t config_gid = 0;
730 uschar *config_main_filelist = US CONFIGURE_FILE
731 "\0<-----------Space to patch configure_filename->";
732 uschar *config_main_filename = NULL;
733 uschar *config_main_directory = NULL;
735 #ifdef CONFIGURE_OWNER
736 uid_t config_uid = CONFIGURE_OWNER;
738 uid_t config_uid = 0;
741 int connection_max_messages= -1;
742 uschar *continue_proxy_cipher = NULL;
743 BOOL continue_proxy_dane = FALSE;
744 uschar *continue_proxy_sni = NULL;
745 uschar *continue_hostname = NULL;
746 uschar *continue_host_address = NULL;
747 int continue_sequence = 1;
748 uschar *continue_transport = NULL;
749 #ifdef EXPERIMENTAL_ESMTP_LIMITS
750 unsigned continue_limit_mail = 0;
751 unsigned continue_limit_rcpt = 0;
752 unsigned continue_limit_rcptdom= 0;
755 uschar *csa_status = NULL;
757 .callout_hold_only = FALSE, /* verify-only: normal delivery */
758 .delivery = FALSE, /* when to attempt */
759 .defer_pass = FALSE, /* on defer: spool locally */
760 .is_tls = FALSE, /* not a TLS conn yet */
761 .cctx = {.sock = -1}, /* open connection */
762 .nrcpt = 0, /* number of addresses */
765 int daemon_notifier_fd = -1;
766 uschar *daemon_smtp_port = US"smtp";
767 int daemon_startup_retries = 9;
768 int daemon_startup_sleep = 30;
770 #ifdef EXPERIMENTAL_DCC
771 uschar *dcc_header = NULL;
772 uschar *dcc_result = NULL;
773 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
774 uschar *dccifd_options = US"header";
778 FILE *debug_file = NULL;
779 int debug_notall[] = {
784 bit_table debug_options[] = { /* must be in alphabetical order and use
785 only the enum values from macro.h */
789 BIT_TABLE(D, deliver),
793 BIT_TABLE(D, expand),
794 BIT_TABLE(D, filter),
795 BIT_TABLE(D, hints_lookup),
796 BIT_TABLE(D, host_lookup),
798 BIT_TABLE(D, interface),
801 BIT_TABLE(D, local_scan),
802 BIT_TABLE(D, lookup),
803 BIT_TABLE(D, memory),
804 BIT_TABLE(D, noutf8),
806 BIT_TABLE(D, process_info),
807 BIT_TABLE(D, queue_run),
808 BIT_TABLE(D, receive),
809 BIT_TABLE(D, resolver),
811 BIT_TABLE(D, rewrite),
813 BIT_TABLE(D, timestamp),
815 BIT_TABLE(D, transport),
817 BIT_TABLE(D, verify),
819 int debug_options_count = nelem(debug_options);
821 unsigned int debug_selector = 0;
822 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
823 uschar *delay_warning_condition=
825 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
826 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
827 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
829 uschar *deliver_address_data = NULL;
830 int deliver_datafile = -1;
831 const uschar *deliver_domain = NULL;
832 uschar *deliver_domain_data = NULL;
833 const uschar *deliver_domain_orig = NULL;
834 const uschar *deliver_domain_parent = NULL;
835 time_t deliver_frozen_at = 0;
836 uschar *deliver_home = NULL;
837 const uschar *deliver_host = NULL;
838 const uschar *deliver_host_address = NULL;
839 int deliver_host_port = 0;
840 uschar *deliver_in_buffer = NULL;
841 ino_t deliver_inode = 0;
842 uschar *deliver_localpart = NULL;
843 uschar *deliver_localpart_data = NULL;
844 uschar *deliver_localpart_orig = NULL;
845 uschar *deliver_localpart_parent = NULL;
846 uschar *deliver_localpart_prefix = NULL;
847 uschar *deliver_localpart_prefix_v = NULL;
848 uschar *deliver_localpart_suffix = NULL;
849 uschar *deliver_localpart_suffix_v = NULL;
850 uschar *deliver_out_buffer = NULL;
851 int deliver_queue_load_max = -1;
852 address_item *deliver_recipients = NULL;
853 uschar *deliver_selectstring = NULL;
854 uschar *deliver_selectstring_sender = NULL;
857 unsigned dkim_collect_input = 0;
858 uschar *dkim_cur_signer = NULL;
859 int dkim_key_length = 0;
860 void *dkim_signatures = NULL;
861 uschar *dkim_signers = NULL;
862 uschar *dkim_signing_domain = NULL;
863 uschar *dkim_signing_selector = NULL;
864 uschar *dkim_verify_hashes = US"sha256:sha512";
865 uschar *dkim_verify_keytypes = US"ed25519:rsa";
866 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
867 BOOL dkim_verify_minimal = FALSE;
868 uschar *dkim_verify_overall = NULL;
869 uschar *dkim_verify_signers = US"$dkim_signers";
870 uschar *dkim_verify_status = NULL;
871 uschar *dkim_verify_reason = NULL;
874 uschar *dmarc_domain_policy = NULL;
875 uschar *dmarc_forensic_sender = NULL;
876 uschar *dmarc_history_file = NULL;
877 uschar *dmarc_status = NULL;
878 uschar *dmarc_status_text = NULL;
879 uschar *dmarc_tld_file = NULL;
880 uschar *dmarc_used_domain = NULL;
883 uschar *dns_again_means_nonexist = NULL;
884 int dns_csa_search_limit = 5;
885 int dns_cname_loops = 1;
887 int dns_dane_ok = -1;
889 uschar *dns_ipv4_lookup = NULL;
892 int dns_dnssec_ok = -1; /* <0 = not coerced */
893 uschar *dns_trust_aa = NULL;
894 int dns_use_edns0 = -1; /* <0 = not coerced */
895 uschar *dnslist_domain = NULL;
896 uschar *dnslist_matched = NULL;
897 uschar *dnslist_text = NULL;
898 uschar *dnslist_value = NULL;
899 tree_node *domainlist_anchor = NULL;
900 int domainlist_count = 0;
901 uschar *dsn_from = US DEFAULT_DSN_FROM;
903 int errno_quota = ERRNO_QUOTA;
904 uschar *errors_copy = NULL;
905 int error_handling = ERRORS_SENDER;
906 uschar *errors_reply_to = NULL;
907 int errors_sender_rc = EXIT_FAILURE;
908 #ifndef DISABLE_EVENT
909 uschar *event_action = NULL; /* expansion for delivery events */
910 uschar *event_data = NULL; /* auxiliary data variable for event */
911 int event_defer_errno = 0;
912 const uschar *event_name = NULL; /* event name variable */
916 gid_t exim_gid = EXIM_GID;
917 uschar *exim_path = US BIN_DIRECTORY "/exim"
918 "\0<---------------Space to patch exim_path->";
919 uid_t exim_uid = EXIM_UID;
920 int expand_level = 0; /* Nesting depth, indent for debug */
921 int expand_forbid = 0;
922 int expand_nlength[EXPAND_MAXN+1];
923 int expand_nmax = -1;
924 uschar *expand_nstring[EXPAND_MAXN+1];
925 uschar *expand_string_message;
926 uschar *extra_local_interfaces = NULL;
928 int fake_response = OK;
929 uschar *fake_response_text = US"Your message has been rejected but is "
930 "being kept for evaluation.\nIf it was a "
931 "legitimate message, it may still be "
932 "delivered to the target recipient(s).";
933 int filter_n[FILTER_VARIABLE_COUNT];
934 int filter_sn[FILTER_VARIABLE_COUNT];
935 int filter_test = FTEST_NONE;
936 uschar *filter_test_sfile = NULL;
937 uschar *filter_test_ufile = NULL;
938 uschar *filter_thisaddress = NULL;
939 int finduser_retries = 0;
940 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
941 uschar *freeze_tell = NULL;
942 uschar *freeze_tell_config = NULL;
943 uschar *fudged_queue_times = US"";
945 uschar *gecos_name = NULL;
946 uschar *gecos_pattern = NULL;
947 rewrite_rule *global_rewrite_rules = NULL;
949 volatile sig_atomic_t had_command_timeout = 0;
950 volatile sig_atomic_t had_command_sigterm = 0;
951 volatile sig_atomic_t had_data_timeout = 0;
952 volatile sig_atomic_t had_data_sigint = 0;
953 uschar *headers_charset = US HEADERS_CHARSET;
954 int header_insert_maxlen = 64 * 1024;
955 header_line *header_last = NULL;
956 header_line *header_list = NULL;
957 int header_maxsize = HEADER_MAXSIZE;
958 int header_line_maxsize = 0;
960 header_name header_names[] = {
961 /* name len allow_resent htype */
962 { US"bcc", 3, TRUE, htype_bcc },
963 { US"cc", 2, TRUE, htype_cc },
964 { US"date", 4, TRUE, htype_date },
965 { US"delivery-date", 13, FALSE, htype_delivery_date },
966 { US"envelope-to", 11, FALSE, htype_envelope_to },
967 { US"from", 4, TRUE, htype_from },
968 { US"message-id", 10, TRUE, htype_id },
969 { US"received", 8, FALSE, htype_received },
970 { US"reply-to", 8, FALSE, htype_reply_to },
971 { US"return-path", 11, FALSE, htype_return_path },
972 { US"sender", 6, TRUE, htype_sender },
973 { US"subject", 7, FALSE, htype_subject },
974 { US"to", 2, TRUE, htype_to }
977 int header_names_size = nelem(header_names);
979 uschar *helo_accept_junk_hosts = NULL;
980 uschar *helo_allow_chars = US"";
981 uschar *helo_lookup_domains = US"@ : @[]";
982 uschar *helo_try_verify_hosts = NULL;
983 uschar *helo_verify_hosts = NULL;
984 const uschar *hex_digits = CUS"0123456789abcdef";
985 uschar *hold_domains = NULL;
986 uschar *host_data = NULL;
987 uschar *host_lookup = NULL;
988 uschar *host_lookup_order = US"bydns:byaddr";
989 uschar *host_lookup_msg = US"";
991 uschar *host_number_string = NULL;
992 uschar *host_reject_connection = NULL;
993 tree_node *hostlist_anchor = NULL;
994 int hostlist_count = 0;
995 uschar *hosts_treat_as_local = NULL;
996 uschar *hosts_connection_nolog = NULL;
998 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
999 uschar *ignore_fromline_hosts = NULL;
1000 int inetd_wait_timeout = -1;
1001 uschar *initial_cwd = NULL;
1002 uschar *interface_address = NULL;
1003 int interface_port = -1;
1004 uschar *iterate_item = NULL;
1006 int journal_fd = -1;
1008 uschar *keep_environment = NULL;
1010 int keep_malformed = 4*24*60*60; /* 4 days */
1012 uschar *eldap_dn = NULL;
1013 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1014 uschar *limits_advertise_hosts = US"*";
1016 int load_average = -2;
1017 uschar *local_from_prefix = NULL;
1018 uschar *local_from_suffix = NULL;
1021 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
1023 uschar *local_interfaces = US"0.0.0.0";
1026 #ifdef HAVE_LOCAL_SCAN
1027 uschar *local_scan_data = NULL;
1028 int local_scan_timeout = 5*60;
1030 gid_t local_user_gid = (gid_t)(-1);
1031 uid_t local_user_uid = (uid_t)(-1);
1033 tree_node *localpartlist_anchor= NULL;
1034 int localpartlist_count = 0;
1035 uschar *log_buffer = NULL;
1037 int log_default[] = { /* for initializing log_selector */
1038 Li_acl_warn_skipped,
1039 Li_connection_reject,
1044 Li_host_lookup_failed,
1045 Li_lost_incoming_connection,
1046 Li_outgoing_interface, /* see d_log_interface in deliver.c */
1049 Li_queue_time_exclusive,
1052 Li_sender_verify_fail,
1055 Li_smtp_confirmation,
1056 Li_tls_certificate_verified,
1061 uschar *log_file_path = US LOG_FILE_PATH
1062 "\0<--------------Space to patch log_file_path->";
1064 int log_notall[] = {
1067 bit_table log_options[] = { /* must be in alphabetical order,
1068 with definitions from enum logbit. */
1069 BIT_TABLE(L, 8bitmime),
1070 BIT_TABLE(L, acl_warn_skipped),
1071 BIT_TABLE(L, address_rewrite),
1073 BIT_TABLE(L, all_parents),
1074 BIT_TABLE(L, arguments),
1075 BIT_TABLE(L, connection_reject),
1076 BIT_TABLE(L, delay_delivery),
1077 BIT_TABLE(L, deliver_time),
1078 BIT_TABLE(L, delivery_size),
1079 #ifndef DISABLE_DKIM
1081 BIT_TABLE(L, dkim_verbose),
1083 BIT_TABLE(L, dnslist_defer),
1084 BIT_TABLE(L, dnssec),
1086 BIT_TABLE(L, host_lookup_failed),
1087 BIT_TABLE(L, ident_timeout),
1088 BIT_TABLE(L, incoming_interface),
1089 BIT_TABLE(L, incoming_port),
1090 BIT_TABLE(L, lost_incoming_connection),
1091 BIT_TABLE(L, millisec),
1092 BIT_TABLE(L, msg_id),
1093 BIT_TABLE(L, msg_id_created),
1094 BIT_TABLE(L, outgoing_interface),
1095 BIT_TABLE(L, outgoing_port),
1097 BIT_TABLE(L, pipelining),
1098 BIT_TABLE(L, protocol_detail),
1099 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1100 BIT_TABLE(L, proxy),
1102 BIT_TABLE(L, queue_run),
1103 BIT_TABLE(L, queue_time),
1104 BIT_TABLE(L, queue_time_exclusive),
1105 BIT_TABLE(L, queue_time_overall),
1106 BIT_TABLE(L, receive_time),
1107 BIT_TABLE(L, received_recipients),
1108 BIT_TABLE(L, received_sender),
1109 BIT_TABLE(L, rejected_header),
1110 { US"rejected_headers", Li_rejected_header },
1111 BIT_TABLE(L, retry_defer),
1112 BIT_TABLE(L, return_path_on_delivery),
1113 BIT_TABLE(L, sender_on_delivery),
1114 BIT_TABLE(L, sender_verify_fail),
1115 BIT_TABLE(L, size_reject),
1116 BIT_TABLE(L, skip_delivery),
1117 BIT_TABLE(L, smtp_confirmation),
1118 BIT_TABLE(L, smtp_connection),
1119 BIT_TABLE(L, smtp_incomplete_transaction),
1120 BIT_TABLE(L, smtp_mailauth),
1121 BIT_TABLE(L, smtp_no_mail),
1122 BIT_TABLE(L, smtp_protocol_error),
1123 BIT_TABLE(L, smtp_syntax_error),
1124 BIT_TABLE(L, subject),
1125 BIT_TABLE(L, tls_certificate_verified),
1126 BIT_TABLE(L, tls_cipher),
1127 BIT_TABLE(L, tls_peerdn),
1128 BIT_TABLE(L, tls_resumption),
1129 BIT_TABLE(L, tls_sni),
1130 BIT_TABLE(L, unknown_in_list),
1132 int log_options_count = nelem(log_options);
1134 int log_reject_target = 0;
1135 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1136 uschar *log_selector_string = NULL;
1137 FILE *log_stderr = NULL;
1138 uschar *login_sender_address = NULL;
1139 uschar *lookup_dnssec_authenticated = NULL;
1140 int lookup_open_max = 25;
1141 uschar *lookup_value = NULL;
1143 macro_item *macros_user = NULL;
1144 uschar *mailstore_basename = NULL;
1145 #ifdef WITH_CONTENT_SCAN
1146 uschar *malware_name = NULL; /* Virus Name */
1148 int max_received_linelength= 0;
1149 int max_username_length = 0;
1150 int message_age = 0;
1151 uschar *message_body = NULL;
1152 uschar *message_body_end = NULL;
1153 int message_body_size = 0;
1154 int message_body_visible = 500;
1155 int message_ended = END_NOTSTARTED;
1156 uschar *message_headers = NULL;
1158 uschar *message_id_domain = NULL;
1159 uschar *message_id_text = NULL;
1160 struct timeval message_id_tv = { 0, 0 };
1161 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1162 uschar *message_id_external;
1163 int message_linecount = 0;
1164 int message_size = 0;
1165 uschar *message_size_limit = US"50M";
1167 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1169 uschar message_subdir[2] = { 0, 0 };
1170 uschar *message_reference = NULL;
1172 /* MIME ACL expandables */
1173 #ifdef WITH_CONTENT_SCAN
1174 int mime_anomaly_level = 0;
1175 const uschar *mime_anomaly_text = NULL;
1176 uschar *mime_boundary = NULL;
1177 uschar *mime_charset = NULL;
1178 uschar *mime_content_description = NULL;
1179 uschar *mime_content_disposition = NULL;
1180 uschar *mime_content_id = NULL;
1181 unsigned int mime_content_size = 0;
1182 uschar *mime_content_transfer_encoding = NULL;
1183 uschar *mime_content_type = NULL;
1184 uschar *mime_decoded_filename = NULL;
1185 uschar *mime_filename = NULL;
1186 int mime_is_multipart = 0;
1187 int mime_is_coverletter = 0;
1188 int mime_is_rfc822 = 0;
1189 int mime_part_count = -1;
1192 uid_t *never_users = NULL;
1193 uschar *notifier_socket = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1195 const int on = 1; /* for setsockopt */
1198 uid_t original_euid;
1199 gid_t originator_gid;
1200 uschar *originator_login = NULL;
1201 uschar *originator_name = NULL;
1202 uid_t originator_uid;
1203 uschar *override_local_interfaces = NULL;
1204 uschar *override_pid_file_path = NULL;
1206 uschar *percent_hack_domains = NULL;
1207 uschar *pid_file_path = US PID_FILE_PATH
1208 "\0<--------------Space to patch pid_file_path->";
1209 #ifndef DISABLE_PIPE_CONNECT
1210 uschar *pipe_connect_advertise_hosts = US"*";
1212 uschar *pipelining_advertise_hosts = US"*";
1213 uschar *primary_hostname = NULL;
1214 uschar *process_info;
1215 int process_info_len = 0;
1216 uschar *process_log_path = NULL;
1217 const uschar *process_purpose = US"fresh-exec";
1219 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1220 uschar *hosts_proxy = NULL;
1221 uschar *proxy_external_address = NULL;
1222 int proxy_external_port = 0;
1223 uschar *proxy_local_address = NULL;
1224 int proxy_local_port = 0;
1225 int proxy_protocol_timeout = 3;
1228 uschar *prvscheck_address = NULL;
1229 uschar *prvscheck_keynum = NULL;
1230 uschar *prvscheck_result = NULL;
1233 const uschar *qualify_domain_recipient = NULL;
1234 uschar *qualify_domain_sender = NULL;
1235 uschar *queue_domains = NULL;
1236 int queue_interval = -1;
1237 uschar *queue_name = US"";
1238 uschar *queue_name_dest = NULL;
1239 uschar *queue_only_file = NULL;
1240 int queue_only_load = -1;
1241 uschar *queue_run_max = US"5";
1242 pid_t queue_run_pid = (pid_t)0;
1243 int queue_run_pipe = -1;
1244 unsigned queue_size = 0;
1245 time_t queue_size_next = 0;
1246 uschar *queue_smtp_domains = NULL;
1248 uint32_t random_seed = 0;
1249 tree_node *ratelimiters_cmd = NULL;
1250 tree_node *ratelimiters_conn = NULL;
1251 tree_node *ratelimiters_mail = NULL;
1252 uschar *raw_active_hostname = NULL;
1253 uschar *raw_sender = NULL;
1254 uschar **raw_recipients = NULL;
1255 int raw_recipients_count = 0;
1258 int rcpt_fail_count = 0;
1259 int rcpt_defer_count = 0;
1262 int receive_linecount = 0;
1263 int receive_messagecount = 0;
1264 int receive_timeout = 0;
1265 int received_count = 0;
1266 uschar *received_for = NULL;
1268 /* This is the default text for Received headers generated by Exim. The
1269 date will be automatically added on the end. */
1271 uschar *received_header_text = US
1273 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1274 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1275 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1276 "by $primary_hostname "
1277 "${if def:received_protocol {with $received_protocol }}"
1279 "${if def:tls_in_ver { ($tls_in_ver)}}"
1280 "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1282 "(Exim $version_number)\n\t"
1283 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1284 "id $message_exim_id"
1285 "${if def:received_for {\n\tfor $received_for}}"
1286 "\0<---------------Space to patch received_header_text->";
1288 int received_headers_max = 30;
1289 uschar *received_protocol = NULL;
1290 struct timeval received_time = { 0, 0 };
1291 struct timeval received_time_complete = { 0, 0 };
1292 uschar *recipient_data = NULL;
1293 uschar *recipient_unqualified_hosts = NULL;
1294 uschar *recipient_verify_failure = NULL;
1295 int recipients_count = 0;
1296 recipient_item *recipients_list = NULL;
1297 int recipients_list_max = 0;
1298 int recipients_max = 0;
1299 const pcre *regex_AUTH = NULL;
1300 const pcre *regex_check_dns_names = NULL;
1301 const pcre *regex_From = NULL;
1302 const pcre *regex_IGNOREQUOTA = NULL;
1303 const pcre *regex_PIPELINING = NULL;
1304 const pcre *regex_SIZE = NULL;
1305 #ifndef DISABLE_PIPE_CONNECT
1306 const pcre *regex_EARLY_PIPE = NULL;
1308 const pcre *regex_ismsgid = NULL;
1309 const pcre *regex_smtp_code = NULL;
1310 uschar *regex_vars[REGEX_VARS];
1311 #ifdef WHITELIST_D_MACROS
1312 const pcre *regex_whitelisted_macro = NULL;
1314 #ifdef WITH_CONTENT_SCAN
1315 uschar *regex_match_string = NULL;
1317 int remote_delivery_count = 0;
1318 int remote_max_parallel = 2;
1319 uschar *remote_sort_domains = NULL;
1320 int retry_data_expire = 7*24*60*60;
1321 int retry_interval_max = 24*60*60;
1322 int retry_maximum_timeout = 0; /* set from retry config */
1323 retry_config *retries = NULL;
1324 uschar *return_path = NULL;
1325 int rewrite_existflags = 0;
1326 uschar *rfc1413_hosts = US"@[]";
1327 int rfc1413_query_timeout = 0;
1328 uid_t root_gid = ROOT_GID;
1329 uid_t root_uid = ROOT_UID;
1331 router_instance *routers = NULL;
1332 router_instance router_defaults = {
1336 .options_block = NULL,
1337 .driver_name = NULL,
1339 .address_data = NULL,
1340 #ifdef EXPERIMENTAL_BRIGHTMAIL
1343 .cannot_route_message = NULL,
1345 .current_directory = NULL,
1346 .debug_string = NULL,
1351 .expand_more = NULL,
1352 .expand_unseen = NULL,
1353 .extra_headers = NULL,
1354 .fallback_hosts = NULL,
1355 .home_directory = NULL,
1356 .ignore_target_hosts = NULL,
1357 .local_parts = NULL,
1358 .pass_router_name = NULL,
1360 .redirect_router_name = NULL,
1361 .remove_headers = NULL,
1362 .require_files = NULL,
1363 .router_home_directory = NULL,
1367 .translate_ip_address = NULL,
1368 .transport_name = NULL,
1370 .address_test = TRUE,
1371 #ifdef EXPERIMENTAL_BRIGHTMAIL
1372 .bmi_deliver_alternate = FALSE,
1373 .bmi_deliver_default = FALSE,
1374 .bmi_dont_deliver = FALSE,
1377 .caseful_local_part = FALSE,
1378 .check_local_user = FALSE,
1379 .disable_logging = FALSE,
1380 .fail_verify_recipient = FALSE,
1381 .fail_verify_sender = FALSE,
1383 .initgroups = FALSE,
1384 .log_as_local = TRUE_UNSET,
1386 .pass_on_timeout = FALSE,
1387 .prefix_optional = FALSE,
1389 .retry_use_local_part = TRUE_UNSET,
1390 .same_domain_copy_routing = FALSE,
1391 .self_rewrite = FALSE,
1393 .suffix_optional = FALSE,
1394 .verify_only = FALSE,
1395 .verify_recipient = TRUE,
1396 .verify_sender = TRUE,
1399 .dsn_lasthop = FALSE,
1401 .self_code = self_freeze,
1405 .fallback_hostlist = NULL,
1407 .pass_router = NULL,
1408 .redirect_router = NULL,
1410 .dnssec = { .request= US"*", .require=NULL },
1413 uschar *router_name = NULL;
1414 tree_node *router_var = NULL;
1416 ip_address_item *running_interfaces = NULL;
1418 /* This is a weird one. The following string gets patched in the binary by the
1419 script that sets up a copy of Exim for running in the test harness. It seems
1420 that compilers are now clever, and share constant strings if they can.
1421 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1422 make use of the end of this string in order to save space. So the patching then
1423 wrecks this. We defeat this optimization by adding some additional characters
1424 onto the end of the string. */
1426 uschar *running_status = US">>>running<<<" "\0EXTRA";
1430 uschar *search_error_message = NULL;
1431 uschar *self_hostname = NULL;
1432 uschar *sender_address = NULL;
1433 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1434 uschar *sender_address_data = NULL;
1435 uschar *sender_address_unrewritten = NULL;
1436 uschar *sender_data = NULL;
1437 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1438 uschar *sender_fullhost = NULL;
1439 uschar *sender_helo_name = NULL;
1440 uschar **sender_host_aliases = &no_aliases;
1441 uschar *sender_host_address = NULL;
1442 uschar *sender_host_authenticated = NULL;
1443 uschar *sender_host_auth_pubname = NULL;
1444 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1445 uschar *sender_host_name = NULL;
1446 int sender_host_port = 0;
1447 uschar *sender_ident = NULL;
1448 uschar *sender_rate = NULL;
1449 uschar *sender_rate_limit = NULL;
1450 uschar *sender_rate_period = NULL;
1451 uschar *sender_rcvhost = NULL;
1452 uschar *sender_unqualified_hosts = NULL;
1453 uschar *sender_verify_failure = NULL;
1454 address_item *sender_verified_list = NULL;
1455 address_item *sender_verified_failed = NULL;
1456 int sender_verified_rc = -1;
1457 uschar *sending_ip_address = NULL;
1458 int sending_port = -1;
1459 SIGNAL_BOOL sigalrm_seen = FALSE;
1460 const uschar *sigalarm_setter = NULL;
1461 uschar **sighup_argv = NULL;
1462 int slow_lookup_log = 0; /* millisecs, zero disables */
1463 int smtp_accept_count = 0;
1464 int smtp_accept_max = 20;
1465 int smtp_accept_max_nonmail= 10;
1466 uschar *smtp_accept_max_nonmail_hosts = US"*";
1467 uschar *smtp_accept_max_per_connection = US"1000";
1468 uschar *smtp_accept_max_per_host = NULL;
1469 int smtp_accept_queue = 0;
1470 int smtp_accept_queue_per_connection = 10;
1471 int smtp_accept_reserve = 0;
1472 uschar *smtp_active_hostname = NULL;
1473 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1474 "Exim $version_number $tod_full"
1475 "\0<---------------Space to patch smtp_banner->";
1476 int smtp_ch_index = 0;
1477 uschar *smtp_cmd_argument = NULL;
1478 uschar *smtp_cmd_buffer = NULL;
1479 struct timeval smtp_connection_start = {0,0};
1480 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1481 int smtp_connect_backlog = 20;
1482 double smtp_delay_mail = 0.0;
1483 double smtp_delay_rcpt = 0.0;
1484 FILE *smtp_in = NULL;
1485 int smtp_load_reserve = -1;
1486 int smtp_mailcmd_count = 0;
1487 FILE *smtp_out = NULL;
1488 uschar *smtp_etrn_command = NULL;
1489 int smtp_max_synprot_errors= 3;
1490 int smtp_max_unknown_commands = 3;
1491 uschar *smtp_notquit_reason = NULL;
1492 unsigned smtp_peer_options = 0;
1493 unsigned smtp_peer_options_wrap= 0;
1494 uschar *smtp_ratelimit_hosts = NULL;
1495 uschar *smtp_ratelimit_mail = NULL;
1496 uschar *smtp_ratelimit_rcpt = NULL;
1497 uschar *smtp_read_error = US"";
1498 int smtp_receive_timeout = 5*60;
1499 uschar *smtp_receive_timeout_s = NULL;
1500 uschar *smtp_reserve_hosts = NULL;
1501 int smtp_rlm_base = 0;
1502 double smtp_rlm_factor = 0.0;
1503 int smtp_rlm_limit = 0;
1504 int smtp_rlm_threshold = INT_MAX;
1505 int smtp_rlr_base = 0;
1506 double smtp_rlr_factor = 0.0;
1507 int smtp_rlr_limit = 0;
1508 int smtp_rlr_threshold = INT_MAX;
1510 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1513 #ifdef WITH_CONTENT_SCAN
1514 uschar *spamd_address = US"127.0.0.1 783";
1515 uschar *spam_bar = NULL;
1516 uschar *spam_report = NULL;
1517 uschar *spam_action = NULL;
1518 uschar *spam_score = NULL;
1519 uschar *spam_score_int = NULL;
1522 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1523 uschar *spf_header_comment = NULL;
1524 uschar *spf_received = NULL;
1525 uschar *spf_result = NULL;
1526 uschar *spf_smtp_comment = NULL;
1527 uschar *spf_smtp_comment_template
1528 /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1529 = US"Please%_see%_http://www.open-spf.org/Why";
1533 FILE *spool_data_file = NULL;
1534 uschar *spool_directory = US SPOOL_DIRECTORY
1535 "\0<--------------Space to patch spool_directory->";
1536 #ifdef EXPERIMENTAL_SRS_ALT
1537 uschar *srs_config = NULL;
1538 uschar *srs_db_address = NULL;
1539 uschar *srs_db_key = NULL;
1540 int srs_hashlength = 6;
1541 int srs_hashmin = -1;
1542 int srs_maxage = 31;
1543 uschar *srs_orig_recipient = NULL;
1544 uschar *srs_orig_sender = NULL;
1545 uschar *srs_recipient = NULL;
1546 uschar *srs_secrets = NULL;
1547 uschar *srs_status = NULL;
1550 uschar *srs_recipient = NULL;
1552 int string_datestamp_offset= -1;
1553 int string_datestamp_length= 0;
1554 int string_datestamp_type = -1;
1555 const uschar *submission_domain = NULL;
1556 const uschar *submission_name = NULL;
1557 int syslog_facility = LOG_MAIL;
1558 uschar *syslog_processname = US"exim";
1559 uschar *system_filter = NULL;
1561 uschar *system_filter_directory_transport = NULL;
1562 uschar *system_filter_file_transport = NULL;
1563 uschar *system_filter_pipe_transport = NULL;
1564 uschar *system_filter_reply_transport = NULL;
1566 gid_t system_filter_gid = 0;
1567 uid_t system_filter_uid = (uid_t)-1;
1569 blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1570 tfo_state_t tcp_out_fastopen = TFO_NOT_USED;
1571 #ifdef USE_TCP_WRAPPERS
1572 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1574 int test_harness_load_avg = 0;
1575 int thismessage_size_limit = 0;
1576 int timeout_frozen_after = 0;
1577 #ifdef MEASURE_TIMING
1578 struct timeval timestamp_startup;
1581 transport_instance *transports = NULL;
1583 transport_instance transport_defaults = {
1584 /* All non-mentioned elements zero/NULL/FALSE */
1586 .multi_domain = TRUE,
1587 .max_addresses = 100,
1588 .connection_max_messages = 500,
1591 .filter_timeout = 300,
1592 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1593 1 nor 0 so can detect unset */
1596 int transport_count;
1597 uschar *transport_name = NULL;
1598 int transport_newlines;
1599 const uschar **transport_filter_argv = NULL;
1600 int transport_filter_timeout;
1601 int transport_write_timeout= 0;
1603 tree_node *tree_dns_fails = NULL;
1604 tree_node *tree_duplicates = NULL;
1605 tree_node *tree_nonrecipients = NULL;
1606 tree_node *tree_unusable = NULL;
1608 gid_t *trusted_groups = NULL;
1609 uid_t *trusted_users = NULL;
1610 uschar *timezone_string = US TIMEZONE_DEFAULT;
1612 uschar *unknown_login = NULL;
1613 uschar *unknown_username = NULL;
1614 uschar *untrusted_set_sender = NULL;
1616 /* A regex for matching a "From_" line in an incoming message, in the form
1618 From ph10 Fri Jan 5 12:35 GMT 1996
1620 which the "mail" commands send to the MTA (undocumented, of course), or in
1623 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1625 which is apparently used by some UUCPs, despite it not being in RFC 976.
1626 Because of variations in time formats, just match up to the minutes. That
1627 should be sufficient. Examples have been seen of time fields like 12:1:03,
1628 so just require one digit for hours and minutes. The weekday is also absent
1631 uschar *uucp_from_pattern = US
1632 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1633 "(?:" /* Non-extracting bracket */
1634 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1635 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1636 ")" /* End alternation */
1637 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1639 uschar *uucp_from_sender = US"$1";
1641 uschar *verify_mode = NULL;
1642 uschar *version_copyright =
1643 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1644 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020";
1645 uschar *version_date = US"?";
1646 uschar *version_cnumber = US"????";
1647 uschar *version_string = US"?";
1649 uschar *warn_message_file = NULL;
1650 int warning_count = 0;
1651 uschar *warnmsg_delay = NULL;
1652 uschar *warnmsg_recipients = NULL;
1655 /* End of globals.c */