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Add observability variables and provision for avoiding OCSP conflicts
[exim.git] / src / src / globals.c
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2014 */
6 /* See the file NOTICE for conditions of use and distribution. */
7
8 /* All the global variables are defined together in this one module, so
9 that they are easy to find. */
10
11 #include "exim.h"
12
13
14 /* Generic options for auths, all of which live inside auth_instance
15 data blocks and hence have the opt_public flag set. */
16
17 optionlist optionlist_auths[] = {
18 { "client_condition", opt_stringptr | opt_public,
19 (void *)(offsetof(auth_instance, client_condition)) },
20 { "client_set_id", opt_stringptr | opt_public,
21 (void *)(offsetof(auth_instance, set_client_id)) },
22 { "driver", opt_stringptr | opt_public,
23 (void *)(offsetof(auth_instance, driver_name)) },
24 { "public_name", opt_stringptr | opt_public,
25 (void *)(offsetof(auth_instance, public_name)) },
26 { "server_advertise_condition", opt_stringptr | opt_public,
27 (void *)(offsetof(auth_instance, advertise_condition))},
28 { "server_condition", opt_stringptr | opt_public,
29 (void *)(offsetof(auth_instance, server_condition)) },
30 { "server_debug_print", opt_stringptr | opt_public,
31 (void *)(offsetof(auth_instance, server_debug_string)) },
32 { "server_mail_auth_condition", opt_stringptr | opt_public,
33 (void *)(offsetof(auth_instance, mail_auth_condition)) },
34 { "server_set_id", opt_stringptr | opt_public,
35 (void *)(offsetof(auth_instance, set_id)) }
36 };
37
38 int optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
39
40 /* An empty host aliases list. */
41
42 uschar *no_aliases = NULL;
43
44
45 /* For comments on these variables, see globals.h. I'm too idle to
46 duplicate them here... */
47
48 #ifdef EXIM_PERL
49 uschar *opt_perl_startup = NULL;
50 BOOL opt_perl_at_start = FALSE;
51 BOOL opt_perl_started = FALSE;
52 #endif
53
54 #ifdef EXPAND_DLFUNC
55 tree_node *dlobj_anchor = NULL;
56 #endif
57
58 #ifdef LOOKUP_IBASE
59 uschar *ibase_servers = NULL;
60 #endif
61
62 #ifdef LOOKUP_LDAP
63 uschar *eldap_ca_cert_dir = NULL;
64 uschar *eldap_ca_cert_file = NULL;
65 uschar *eldap_cert_file = NULL;
66 uschar *eldap_cert_key = NULL;
67 uschar *eldap_cipher_suite = NULL;
68 uschar *eldap_default_servers = NULL;
69 uschar *eldap_require_cert = NULL;
70 int eldap_version = -1;
71 BOOL eldap_start_tls = FALSE;
72 #endif
73
74 #ifdef LOOKUP_MYSQL
75 uschar *mysql_servers = NULL;
76 #endif
77
78 #ifdef LOOKUP_ORACLE
79 uschar *oracle_servers = NULL;
80 #endif
81
82 #ifdef LOOKUP_PGSQL
83 uschar *pgsql_servers = NULL;
84 #endif
85
86 #ifdef EXPERIMENTAL_REDIS
87 uschar *redis_servers = NULL;
88 #endif
89
90 #ifdef LOOKUP_SQLITE
91 int sqlite_lock_timeout = 5;
92 #endif
93
94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
95 BOOL move_frozen_messages = FALSE;
96 #endif
97
98 /* These variables are outside the #ifdef because it keeps the code less
99 cluttered in several places (e.g. during logging) if we can always refer to
100 them. Also, the tls_ variables are now always visible. */
101
102 tls_support tls_in = {
103 -1, /* tls_active */
104 0, /* tls_bits */
105 FALSE,/* tls_certificate_verified */
106 #ifdef EXPERIMENTAL_DANE
107 FALSE,/* dane_verified */
108 0, /* tlsa_usage */
109 #endif
110 NULL, /* tls_cipher */
111 FALSE,/* tls_on_connect */
112 NULL, /* tls_on_connect_ports */
113 NULL, /* tls_ourcert */
114 NULL, /* tls_peercert */
115 NULL, /* tls_peerdn */
116 NULL, /* tls_sni */
117 0 /* tls_ocsp */
118 };
119 tls_support tls_out = {
120 -1, /* tls_active */
121 0, /* tls_bits */
122 FALSE,/* tls_certificate_verified */
123 #ifdef EXPERIMENTAL_DANE
124 FALSE,/* dane_verified */
125 0, /* tlsa_usage */
126 #endif
127 NULL, /* tls_cipher */
128 FALSE,/* tls_on_connect */
129 NULL, /* tls_on_connect_ports */
130 NULL, /* tls_ourcert */
131 NULL, /* tls_peercert */
132 NULL, /* tls_peerdn */
133 NULL, /* tls_sni */
134 0 /* tls_ocsp */
135 };
136
137 #ifdef EXPERIMENTAL_DSN
138 uschar *dsn_envid = NULL;
139 int dsn_ret = 0;
140 const pcre *regex_DSN = NULL;
141 BOOL smtp_use_dsn = FALSE;
142 uschar *dsn_advertise_hosts = NULL;
143 #endif
144
145 #ifdef SUPPORT_TLS
146 BOOL gnutls_compat_mode = FALSE;
147 BOOL gnutls_allow_auto_pkcs11 = FALSE;
148 uschar *gnutls_require_mac = NULL;
149 uschar *gnutls_require_kx = NULL;
150 uschar *gnutls_require_proto = NULL;
151 uschar *openssl_options = NULL;
152 const pcre *regex_STARTTLS = NULL;
153 uschar *tls_advertise_hosts = NULL; /* This is deliberate */
154 uschar *tls_certificate = NULL;
155 uschar *tls_crl = NULL;
156 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
157 that's the interop problem which has been observed: GnuTLS suggesting a higher
158 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
159 int tls_dh_max_bits = 2236;
160 uschar *tls_dhparam = NULL;
161 #ifndef DISABLE_OCSP
162 uschar *tls_ocsp_file = NULL;
163 #endif
164 BOOL tls_offered = FALSE;
165 uschar *tls_privatekey = NULL;
166 BOOL tls_remember_esmtp = FALSE;
167 uschar *tls_require_ciphers = NULL;
168 uschar *tls_try_verify_hosts = NULL;
169 uschar *tls_verify_certificates= NULL;
170 uschar *tls_verify_hosts = NULL;
171 #endif
172
173 #ifndef DISABLE_PRDR
174 /* Per Recipient Data Response variables */
175 BOOL prdr_enable = FALSE;
176 BOOL prdr_requested = FALSE;
177 const pcre *regex_PRDR = NULL;
178 #endif
179
180 /* Input-reading functions for messages, so we can use special ones for
181 incoming TCP/IP. The defaults use stdin. We never need these for any
182 stand-alone tests. */
183
184 #ifndef STAND_ALONE
185 int (*receive_getc)(void) = stdin_getc;
186 int (*receive_ungetc)(int) = stdin_ungetc;
187 int (*receive_feof)(void) = stdin_feof;
188 int (*receive_ferror)(void) = stdin_ferror;
189 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
190 #endif
191
192
193 /* List of per-address expansion variables for clearing and saving/restoring
194 when verifying one address while routing/verifying another. We have to have
195 the size explicit, because it is referenced from more than one module. */
196
197 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
198 &deliver_address_data,
199 &deliver_domain,
200 &deliver_domain_data,
201 &deliver_domain_orig,
202 &deliver_domain_parent,
203 &deliver_localpart,
204 &deliver_localpart_data,
205 &deliver_localpart_orig,
206 &deliver_localpart_parent,
207 &deliver_localpart_prefix,
208 &deliver_localpart_suffix,
209 (uschar **)(&deliver_recipients),
210 &deliver_host,
211 &deliver_home,
212 &address_file,
213 &address_pipe,
214 &self_hostname,
215 NULL };
216
217 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
218
219 /* General global variables */
220
221 header_line *acl_added_headers = NULL;
222 tree_node *acl_anchor = NULL;
223 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
224 NULL, NULL, NULL, NULL};
225 int acl_narg = 0;
226
227 uschar *acl_not_smtp = NULL;
228 #ifdef WITH_CONTENT_SCAN
229 uschar *acl_not_smtp_mime = NULL;
230 #endif
231 uschar *acl_not_smtp_start = NULL;
232 uschar *acl_removed_headers = NULL;
233 uschar *acl_smtp_auth = NULL;
234 uschar *acl_smtp_connect = NULL;
235 uschar *acl_smtp_data = NULL;
236 #ifndef DISABLE_PRDR
237 uschar *acl_smtp_data_prdr = NULL;
238 #endif
239 #ifndef DISABLE_DKIM
240 uschar *acl_smtp_dkim = NULL;
241 #endif
242 uschar *acl_smtp_etrn = NULL;
243 uschar *acl_smtp_expn = NULL;
244 uschar *acl_smtp_helo = NULL;
245 uschar *acl_smtp_mail = NULL;
246 uschar *acl_smtp_mailauth = NULL;
247 #ifdef WITH_CONTENT_SCAN
248 uschar *acl_smtp_mime = NULL;
249 #endif
250 uschar *acl_smtp_notquit = NULL;
251 uschar *acl_smtp_predata = NULL;
252 uschar *acl_smtp_quit = NULL;
253 uschar *acl_smtp_rcpt = NULL;
254 uschar *acl_smtp_starttls = NULL;
255 uschar *acl_smtp_vrfy = NULL;
256
257 BOOL acl_temp_details = FALSE;
258 tree_node *acl_var_c = NULL;
259 tree_node *acl_var_m = NULL;
260 uschar *acl_verify_message = NULL;
261 string_item *acl_warn_logged = NULL;
262
263 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
264 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
265
266 uschar *acl_wherenames[] = { US"RCPT",
267 US"MAIL",
268 US"PREDATA",
269 US"MIME",
270 US"DKIM",
271 US"DATA",
272 #ifndef DISABLE_PRDR
273 US"PRDR",
274 #endif
275 US"non-SMTP",
276 US"AUTH",
277 US"connection",
278 US"ETRN",
279 US"EXPN",
280 US"EHLO or HELO",
281 US"MAILAUTH",
282 US"non-SMTP-start",
283 US"NOTQUIT",
284 US"QUIT",
285 US"STARTTLS",
286 US"VRFY",
287 US"delivery",
288 US"unknown"
289 };
290
291 uschar *acl_wherecodes[] = { US"550", /* RCPT */
292 US"550", /* MAIL */
293 US"550", /* PREDATA */
294 US"550", /* MIME */
295 US"550", /* DKIM */
296 US"550", /* DATA */
297 #ifndef DISABLE_PRDR
298 US"550", /* RCPT PRDR */
299 #endif
300 US"0", /* not SMTP; not relevant */
301 US"503", /* AUTH */
302 US"550", /* connect */
303 US"458", /* ETRN */
304 US"550", /* EXPN */
305 US"550", /* HELO/EHLO */
306 US"0", /* MAILAUTH; not relevant */
307 US"0", /* not SMTP; not relevant */
308 US"0", /* NOTQUIT; not relevant */
309 US"0", /* QUIT; not relevant */
310 US"550", /* STARTTLS */
311 US"252", /* VRFY */
312 US"0", /* delivery; not relevant */
313 US"0" /* unknown; not relevant */
314 };
315
316 BOOL active_local_from_check = FALSE;
317 BOOL active_local_sender_retain = FALSE;
318 int body_8bitmime = 0;
319 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
320 address_item *addr_duplicate = NULL;
321
322 address_item address_defaults = {
323 NULL, /* next */
324 NULL, /* parent */
325 NULL, /* first */
326 NULL, /* dupof */
327 NULL, /* start_router */
328 NULL, /* router */
329 NULL, /* transport */
330 NULL, /* host_list */
331 NULL, /* host_used */
332 NULL, /* fallback_hosts */
333 NULL, /* reply */
334 NULL, /* retries */
335 NULL, /* address */
336 NULL, /* unique */
337 NULL, /* cc_local_part */
338 NULL, /* lc_local_part */
339 NULL, /* local_part */
340 NULL, /* prefix */
341 NULL, /* suffix */
342 NULL, /* domain */
343 NULL, /* address_retry_key */
344 NULL, /* domain_retry_key */
345 NULL, /* current_dir */
346 NULL, /* home_dir */
347 NULL, /* message */
348 NULL, /* user_message */
349 NULL, /* onetime_parent */
350 NULL, /* pipe_expandn */
351 NULL, /* return_filename */
352 NULL, /* self_hostname */
353 NULL, /* shadow_message */
354 #ifdef SUPPORT_TLS
355 NULL, /* cipher */
356 NULL, /* ourcert */
357 NULL, /* peercert */
358 NULL, /* peerdn */
359 OCSP_NOT_REQ, /* ocsp */
360 #endif
361 NULL, /* authenticator */
362 NULL, /* auth_id */
363 NULL, /* auth_sndr */
364 #ifdef EXPERIMENTAL_DSN
365 NULL, /* dsn_orcpt */
366 0, /* dsn_flags */
367 0, /* dsn_aware */
368 #endif
369 (uid_t)(-1), /* uid */
370 (gid_t)(-1), /* gid */
371 0, /* flags */
372 { 0 }, /* domain_cache - any larger array should be zeroed */
373 { 0 }, /* localpart_cache - ditto */
374 -1, /* mode */
375 0, /* more_errno */
376 ERRNO_UNKNOWNERROR, /* basic_errno */
377 0, /* child_count */
378 -1, /* return_file */
379 SPECIAL_NONE, /* special_action */
380 DEFER, /* transport_return */
381 { /* fields that are propagated to children */
382 NULL, /* address_data */
383 NULL, /* domain_data */
384 NULL, /* localpart_data */
385 NULL, /* errors_address */
386 NULL, /* extra_headers */
387 NULL, /* remove_headers */
388 #ifdef EXPERIMENTAL_SRS
389 NULL, /* srs_sender */
390 #endif
391 }
392 };
393
394 uschar *address_file = NULL;
395 uschar *address_pipe = NULL;
396 BOOL address_test_mode = FALSE;
397 tree_node *addresslist_anchor = NULL;
398 int addresslist_count = 0;
399 gid_t *admin_groups = NULL;
400 BOOL admin_user = FALSE;
401 BOOL allow_auth_unadvertised= FALSE;
402 BOOL allow_domain_literals = FALSE;
403 BOOL allow_mx_to_ip = FALSE;
404 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
405 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
406 BOOL allow_utf8_domains = FALSE;
407 uschar *authenticated_fail_id = NULL;
408 uschar *authenticated_id = NULL;
409 uschar *authenticated_sender = NULL;
410 BOOL authentication_failed = FALSE;
411 auth_instance *auths = NULL;
412 uschar *auth_advertise_hosts = US"*";
413 auth_instance auth_defaults = {
414 NULL, /* chain pointer */
415 NULL, /* name */
416 NULL, /* info */
417 NULL, /* private options block pointer */
418 NULL, /* driver_name */
419 NULL, /* advertise_condition */
420 NULL, /* client_condition */
421 NULL, /* public_name */
422 NULL, /* set_id */
423 NULL, /* set_client_id */
424 NULL, /* server_mail_auth_condition */
425 NULL, /* server_debug_string */
426 NULL, /* server_condition */
427 FALSE, /* client */
428 FALSE, /* server */
429 FALSE /* advertised */
430 };
431
432 uschar *auth_defer_msg = US"reason not recorded";
433 uschar *auth_defer_user_msg = US"";
434 uschar *auth_vars[AUTH_VARS];
435 int auto_thaw = 0;
436 #ifdef WITH_CONTENT_SCAN
437 BOOL av_failed = FALSE;
438 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
439 #endif
440
441 BOOL background_daemon = TRUE;
442
443 #if BASE_62 == 62
444 uschar *base62_chars=
445 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
446 #else
447 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
448 #endif
449
450 uschar *bi_command = NULL;
451 uschar *big_buffer = NULL;
452 int big_buffer_size = BIG_BUFFER_SIZE;
453 #ifdef EXPERIMENTAL_BRIGHTMAIL
454 uschar *bmi_alt_location = NULL;
455 uschar *bmi_base64_tracker_verdict = NULL;
456 uschar *bmi_base64_verdict = NULL;
457 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
458 int bmi_deliver = 1;
459 int bmi_run = 0;
460 uschar *bmi_verdicts = NULL;
461 #endif
462 int body_linecount = 0;
463 int body_zerocount = 0;
464 uschar *bounce_message_file = NULL;
465 uschar *bounce_message_text = NULL;
466 uschar *bounce_recipient = NULL;
467 BOOL bounce_return_body = TRUE;
468 BOOL bounce_return_message = TRUE;
469 int bounce_return_size_limit = 100*1024;
470 uschar *bounce_sender_authentication = NULL;
471 int bsmtp_transaction_linecount = 0;
472
473 int callout_cache_domain_positive_expire = 7*24*60*60;
474 int callout_cache_domain_negative_expire = 3*60*60;
475 int callout_cache_positive_expire = 24*60*60;
476 int callout_cache_negative_expire = 2*60*60;
477 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
478 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
479 int check_log_inodes = 0;
480 int check_log_space = 0;
481 BOOL check_rfc2047_length = TRUE;
482 int check_spool_inodes = 0;
483 int check_spool_space = 0;
484 uschar *client_authenticator = NULL;
485 uschar *client_authenticated_id = NULL;
486 uschar *client_authenticated_sender = NULL;
487 int clmacro_count = 0;
488 uschar *clmacros[MAX_CLMACROS];
489 BOOL config_changed = FALSE;
490 FILE *config_file = NULL;
491 uschar *config_filename = NULL;
492 int config_lineno = 0;
493 #ifdef CONFIGURE_GROUP
494 gid_t config_gid = CONFIGURE_GROUP;
495 #endif
496 uschar *config_main_filelist = US CONFIGURE_FILE
497 "\0<-----------Space to patch configure_filename->";
498 uschar *config_main_filename = NULL;
499
500 #ifdef CONFIGURE_OWNER
501 uid_t config_uid = CONFIGURE_OWNER;
502 #endif
503
504 int connection_max_messages= -1;
505 uschar *continue_hostname = NULL;
506 uschar *continue_host_address = NULL;
507 BOOL continue_more = FALSE;
508 int continue_sequence = 1;
509 uschar *continue_transport = NULL;
510
511 uschar *csa_status = NULL;
512 BOOL cutthrough_delivery = FALSE;
513 int cutthrough_fd = -1;
514
515 BOOL daemon_listen = FALSE;
516 uschar *daemon_smtp_port = US"smtp";
517 int daemon_startup_retries = 9;
518 int daemon_startup_sleep = 30;
519
520 #ifdef EXPERIMENTAL_DCC
521 BOOL dcc_direct_add_header = FALSE;
522 uschar *dcc_header = NULL;
523 uschar *dcc_result = NULL;
524 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
525 uschar *dccifd_options = US"header";
526 #endif
527
528 BOOL debug_daemon = FALSE;
529 int debug_fd = -1;
530 FILE *debug_file = NULL;
531 bit_table debug_options[] = {
532 { US"acl", D_acl },
533 { US"all", D_all },
534 { US"auth", D_auth },
535 { US"deliver", D_deliver },
536 { US"dns", D_dns },
537 { US"dnsbl", D_dnsbl },
538 { US"exec", D_exec },
539 { US"expand", D_expand },
540 { US"filter", D_filter },
541 { US"hints_lookup", D_hints_lookup },
542 { US"host_lookup", D_host_lookup },
543 { US"ident", D_ident },
544 { US"interface", D_interface },
545 { US"lists", D_lists },
546 { US"load", D_load },
547 { US"local_scan", D_local_scan },
548 { US"lookup", D_lookup },
549 { US"memory", D_memory },
550 { US"pid", D_pid },
551 { US"process_info", D_process_info },
552 { US"queue_run", D_queue_run },
553 { US"receive", D_receive },
554 { US"resolver", D_resolver },
555 { US"retry", D_retry },
556 { US"rewrite", D_rewrite },
557 { US"route", D_route },
558 { US"timestamp", D_timestamp },
559 { US"tls", D_tls },
560 { US"transport", D_transport },
561 { US"uid", D_uid },
562 { US"verify", D_verify }
563 };
564 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
565 unsigned int debug_selector = 0;
566 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
567 uschar *delay_warning_condition=
568 US"${if or {"
569 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
570 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
571 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
572 "} {no}{yes}}";
573 BOOL delivery_date_remove = TRUE;
574 uschar *deliver_address_data = NULL;
575 int deliver_datafile = -1;
576 uschar *deliver_domain = NULL;
577 uschar *deliver_domain_data = NULL;
578 uschar *deliver_domain_orig = NULL;
579 uschar *deliver_domain_parent = NULL;
580 BOOL deliver_drop_privilege = FALSE;
581 BOOL deliver_firsttime = FALSE;
582 BOOL deliver_force = FALSE;
583 BOOL deliver_freeze = FALSE;
584 time_t deliver_frozen_at = 0;
585 uschar *deliver_home = NULL;
586 uschar *deliver_host = NULL;
587 uschar *deliver_host_address = NULL;
588 uschar *deliver_in_buffer = NULL;
589 ino_t deliver_inode = 0;
590 uschar *deliver_localpart = NULL;
591 uschar *deliver_localpart_data = NULL;
592 uschar *deliver_localpart_orig = NULL;
593 uschar *deliver_localpart_parent = NULL;
594 uschar *deliver_localpart_prefix = NULL;
595 uschar *deliver_localpart_suffix = NULL;
596 BOOL deliver_force_thaw = FALSE;
597 BOOL deliver_manual_thaw = FALSE;
598 uschar *deliver_out_buffer = NULL;
599 int deliver_queue_load_max = -1;
600 address_item *deliver_recipients = NULL;
601 uschar *deliver_selectstring = NULL;
602 BOOL deliver_selectstring_regex = FALSE;
603 uschar *deliver_selectstring_sender = NULL;
604 BOOL deliver_selectstring_sender_regex = FALSE;
605 #ifdef WITH_OLD_DEMIME
606 int demime_errorlevel = 0;
607 int demime_ok = 0;
608 uschar *demime_reason = NULL;
609 #endif
610 BOOL disable_callout_flush = FALSE;
611 BOOL disable_delay_flush = FALSE;
612 #ifdef ENABLE_DISABLE_FSYNC
613 BOOL disable_fsync = FALSE;
614 #endif
615 BOOL disable_ipv6 = FALSE;
616 BOOL disable_logging = FALSE;
617
618 #ifndef DISABLE_DKIM
619 uschar *dkim_cur_signer = NULL;
620 uschar *dkim_signers = NULL;
621 uschar *dkim_signing_domain = NULL;
622 uschar *dkim_signing_selector = NULL;
623 uschar *dkim_verify_signers = US"$dkim_signers";
624 BOOL dkim_collect_input = FALSE;
625 BOOL dkim_disable_verify = FALSE;
626 #endif
627 #ifdef EXPERIMENTAL_DMARC
628 BOOL dmarc_has_been_checked = FALSE;
629 uschar *dmarc_ar_header = NULL;
630 uschar *dmarc_domain_policy = NULL;
631 uschar *dmarc_forensic_sender = NULL;
632 uschar *dmarc_history_file = NULL;
633 uschar *dmarc_status = NULL;
634 uschar *dmarc_status_text = NULL;
635 uschar *dmarc_tld_file = NULL;
636 uschar *dmarc_used_domain = NULL;
637 BOOL dmarc_disable_verify = FALSE;
638 BOOL dmarc_enable_forensic = FALSE;
639 #endif
640
641 uschar *dns_again_means_nonexist = NULL;
642 int dns_csa_search_limit = 5;
643 BOOL dns_csa_use_reverse = TRUE;
644 #ifdef EXPERIMENTAL_DANE
645 int dns_dane_ok = -1;
646 #endif
647 uschar *dns_ipv4_lookup = NULL;
648 int dns_retrans = 0;
649 int dns_retry = 0;
650 int dns_dnssec_ok = -1; /* <0 = not coerced */
651 int dns_use_edns0 = -1; /* <0 = not coerced */
652 uschar *dnslist_domain = NULL;
653 uschar *dnslist_matched = NULL;
654 uschar *dnslist_text = NULL;
655 uschar *dnslist_value = NULL;
656 tree_node *domainlist_anchor = NULL;
657 int domainlist_count = 0;
658 BOOL dont_deliver = FALSE;
659 BOOL dot_ends = TRUE;
660 BOOL drop_cr = FALSE; /* No longer used */
661 uschar *dsn_from = US DEFAULT_DSN_FROM;
662
663 BOOL enable_dollar_recipients = FALSE;
664 BOOL envelope_to_remove = TRUE;
665 int errno_quota = ERRNO_QUOTA;
666 uschar *errors_copy = NULL;
667 int error_handling = ERRORS_SENDER;
668 uschar *errors_reply_to = NULL;
669 int errors_sender_rc = EXIT_FAILURE;
670
671 gid_t exim_gid = EXIM_GID;
672 BOOL exim_gid_set = TRUE; /* This gid is always set */
673 uschar *exim_path = US BIN_DIRECTORY "/exim"
674 "\0<---------------Space to patch exim_path->";
675 uid_t exim_uid = EXIM_UID;
676 BOOL exim_uid_set = TRUE; /* This uid is always set */
677 int expand_forbid = 0;
678 int expand_nlength[EXPAND_MAXN+1];
679 int expand_nmax = -1;
680 uschar *expand_nstring[EXPAND_MAXN+1];
681 BOOL expand_string_forcedfail = FALSE;
682 uschar *expand_string_message;
683 BOOL extract_addresses_remove_arguments = TRUE;
684 uschar *extra_local_interfaces = NULL;
685
686 int fake_response = OK;
687 uschar *fake_response_text = US"Your message has been rejected but is "
688 "being kept for evaluation.\nIf it was a "
689 "legitimate message, it may still be "
690 "delivered to the target recipient(s).";
691 int filter_n[FILTER_VARIABLE_COUNT];
692 BOOL filter_running = FALSE;
693 int filter_sn[FILTER_VARIABLE_COUNT];
694 int filter_test = FTEST_NONE;
695 uschar *filter_test_sfile = NULL;
696 uschar *filter_test_ufile = NULL;
697 uschar *filter_thisaddress = NULL;
698 int finduser_retries = 0;
699 #ifdef WITH_OLD_DEMIME
700 uschar *found_extension = NULL;
701 #endif
702 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
703 uschar *freeze_tell = NULL;
704 uschar *freeze_tell_config = NULL;
705 uschar *fudged_queue_times = US"";
706
707 uschar *gecos_name = NULL;
708 uschar *gecos_pattern = NULL;
709 rewrite_rule *global_rewrite_rules = NULL;
710
711 uschar *headers_charset = US HEADERS_CHARSET;
712 int header_insert_maxlen = 64 * 1024;
713 header_line *header_last = NULL;
714 header_line *header_list = NULL;
715 int header_maxsize = HEADER_MAXSIZE;
716 int header_line_maxsize = 0;
717
718 header_name header_names[] = {
719 { US"bcc", 3, TRUE, htype_bcc },
720 { US"cc", 2, TRUE, htype_cc },
721 { US"date", 4, TRUE, htype_date },
722 { US"delivery-date", 13, FALSE, htype_delivery_date },
723 { US"envelope-to", 11, FALSE, htype_envelope_to },
724 { US"from", 4, TRUE, htype_from },
725 { US"message-id", 10, TRUE, htype_id },
726 { US"received", 8, FALSE, htype_received },
727 { US"reply-to", 8, FALSE, htype_reply_to },
728 { US"return-path", 11, FALSE, htype_return_path },
729 { US"sender", 6, TRUE, htype_sender },
730 { US"subject", 7, FALSE, htype_subject },
731 { US"to", 2, TRUE, htype_to }
732 };
733
734 int header_names_size = sizeof(header_names)/sizeof(header_name);
735
736 BOOL header_rewritten = FALSE;
737 uschar *helo_accept_junk_hosts = NULL;
738 uschar *helo_allow_chars = US"";
739 uschar *helo_lookup_domains = US"@ : @[]";
740 uschar *helo_try_verify_hosts = NULL;
741 BOOL helo_verified = FALSE;
742 BOOL helo_verify_failed = FALSE;
743 uschar *helo_verify_hosts = NULL;
744 const uschar *hex_digits = CUS"0123456789abcdef";
745 uschar *hold_domains = NULL;
746 BOOL host_checking = FALSE;
747 BOOL host_checking_callout = FALSE;
748 uschar *host_data = NULL;
749 BOOL host_find_failed_syntax= FALSE;
750 uschar *host_lookup = NULL;
751 BOOL host_lookup_deferred = FALSE;
752 BOOL host_lookup_failed = FALSE;
753 uschar *host_lookup_order = US"bydns:byaddr";
754 uschar *host_lookup_msg = US"";
755 int host_number = 0;
756 uschar *host_number_string = NULL;
757 uschar *host_reject_connection = NULL;
758 tree_node *hostlist_anchor = NULL;
759 int hostlist_count = 0;
760 uschar *hosts_treat_as_local = NULL;
761 uschar *hosts_connection_nolog = NULL;
762
763 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
764 BOOL ignore_fromline_local = FALSE;
765 uschar *ignore_fromline_hosts = NULL;
766 BOOL inetd_wait_mode = FALSE;
767 int inetd_wait_timeout = -1;
768 uschar *interface_address = NULL;
769 int interface_port = -1;
770 BOOL is_inetd = FALSE;
771 uschar *iterate_item = NULL;
772
773 int journal_fd = -1;
774
775 int keep_malformed = 4*24*60*60; /* 4 days */
776
777 uschar *eldap_dn = NULL;
778 int load_average = -2;
779 BOOL local_error_message = FALSE;
780 BOOL local_from_check = TRUE;
781 uschar *local_from_prefix = NULL;
782 uschar *local_from_suffix = NULL;
783
784 #if HAVE_IPV6
785 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
786 #else
787 uschar *local_interfaces = US"0.0.0.0";
788 #endif
789
790 uschar *local_scan_data = NULL;
791 int local_scan_timeout = 5*60;
792 BOOL local_sender_retain = FALSE;
793 gid_t local_user_gid = (gid_t)(-1);
794 uid_t local_user_uid = (uid_t)(-1);
795
796 tree_node *localpartlist_anchor= NULL;
797 int localpartlist_count = 0;
798 uschar *log_buffer = NULL;
799 unsigned int log_extra_selector = LX_default;
800 uschar *log_file_path = US LOG_FILE_PATH
801 "\0<--------------Space to patch log_file_path->";
802
803 /* Those log options with L_xxx identifiers have values less than 0x800000 and
804 are the ones that get put into log_write_selector. They can be used in calls to
805 log_write() to test for the bit. The options with LX_xxx identifiers have
806 values greater than 0x80000000 and are put into log_extra_selector (without the
807 top bit). They are never used in calls to log_write(), but are tested
808 independently. This separation became necessary when the number of log
809 selectors was getting close to filling a 32-bit word. */
810
811 /* Note that this list must be in alphabetical order. */
812
813 bit_table log_options[] = {
814 { US"8bitmime", LX_8bitmime },
815 { US"acl_warn_skipped", LX_acl_warn_skipped },
816 { US"address_rewrite", L_address_rewrite },
817 { US"all", L_all },
818 { US"all_parents", L_all_parents },
819 { US"arguments", LX_arguments },
820 { US"connection_reject", L_connection_reject },
821 { US"delay_delivery", L_delay_delivery },
822 { US"deliver_time", LX_deliver_time },
823 { US"delivery_size", LX_delivery_size },
824 { US"dnslist_defer", L_dnslist_defer },
825 { US"etrn", L_etrn },
826 { US"host_lookup_failed", L_host_lookup_failed },
827 { US"ident_timeout", LX_ident_timeout },
828 { US"incoming_interface", LX_incoming_interface },
829 { US"incoming_port", LX_incoming_port },
830 { US"lost_incoming_connection", L_lost_incoming_connection },
831 { US"outgoing_port", LX_outgoing_port },
832 { US"pid", LX_pid },
833 #ifdef EXPERIMENTAL_PROXY
834 { US"proxy", LX_proxy },
835 #endif
836 { US"queue_run", L_queue_run },
837 { US"queue_time", LX_queue_time },
838 { US"queue_time_overall", LX_queue_time_overall },
839 { US"received_recipients", LX_received_recipients },
840 { US"received_sender", LX_received_sender },
841 { US"rejected_header", LX_rejected_header },
842 { US"rejected_headers", LX_rejected_header },
843 { US"retry_defer", L_retry_defer },
844 { US"return_path_on_delivery", LX_return_path_on_delivery },
845 { US"sender_on_delivery", LX_sender_on_delivery },
846 { US"sender_verify_fail", LX_sender_verify_fail },
847 { US"size_reject", L_size_reject },
848 { US"skip_delivery", L_skip_delivery },
849 { US"smtp_confirmation", LX_smtp_confirmation },
850 { US"smtp_connection", L_smtp_connection },
851 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
852 { US"smtp_mailauth", LX_smtp_mailauth },
853 { US"smtp_no_mail", LX_smtp_no_mail },
854 { US"smtp_protocol_error", L_smtp_protocol_error },
855 { US"smtp_syntax_error", L_smtp_syntax_error },
856 { US"subject", LX_subject },
857 { US"tls_certificate_verified", LX_tls_certificate_verified },
858 { US"tls_cipher", LX_tls_cipher },
859 { US"tls_peerdn", LX_tls_peerdn },
860 { US"tls_sni", LX_tls_sni },
861 { US"unknown_in_list", LX_unknown_in_list }
862 };
863
864 int log_options_count = sizeof(log_options)/sizeof(bit_table);
865 int log_reject_target = 0;
866 uschar *log_selector_string = NULL;
867 FILE *log_stderr = NULL;
868 BOOL log_testing_mode = FALSE;
869 BOOL log_timezone = FALSE;
870 unsigned int log_write_selector= L_default;
871 uschar *login_sender_address = NULL;
872 uschar *lookup_dnssec_authenticated = NULL;
873 int lookup_open_max = 25;
874 uschar *lookup_value = NULL;
875
876 macro_item *macros = NULL;
877 uschar *mailstore_basename = NULL;
878 #ifdef WITH_CONTENT_SCAN
879 uschar *malware_name = NULL; /* Virus Name */
880 #endif
881 int max_received_linelength= 0;
882 int max_username_length = 0;
883 int message_age = 0;
884 uschar *message_body = NULL;
885 uschar *message_body_end = NULL;
886 BOOL message_body_newlines = FALSE;
887 int message_body_size = 0;
888 int message_body_visible = 500;
889 int message_ended = END_NOTSTARTED;
890 uschar *message_headers = NULL;
891 uschar *message_id;
892 uschar *message_id_domain = NULL;
893 uschar *message_id_text = NULL;
894 struct timeval message_id_tv = { 0, 0 };
895 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
896 uschar *message_id_external;
897 int message_linecount = 0;
898 BOOL message_logs = TRUE;
899 int message_size = 0;
900 uschar *message_size_limit = US"50M";
901 uschar message_subdir[2] = { 0, 0 };
902 uschar *message_reference = NULL;
903
904 /* MIME ACL expandables */
905 #ifdef WITH_CONTENT_SCAN
906 int mime_anomaly_level = 0;
907 const uschar *mime_anomaly_text = NULL;
908 uschar *mime_boundary = NULL;
909 uschar *mime_charset = NULL;
910 uschar *mime_content_description = NULL;
911 uschar *mime_content_disposition = NULL;
912 uschar *mime_content_id = NULL;
913 unsigned int mime_content_size = 0;
914 uschar *mime_content_transfer_encoding = NULL;
915 uschar *mime_content_type = NULL;
916 uschar *mime_decoded_filename = NULL;
917 uschar *mime_filename = NULL;
918 int mime_is_multipart = 0;
919 int mime_is_coverletter = 0;
920 int mime_is_rfc822 = 0;
921 int mime_part_count = -1;
922 #endif
923
924 BOOL mua_wrapper = FALSE;
925
926 uid_t *never_users = NULL;
927 #ifdef WITH_CONTENT_SCAN
928 BOOL no_mbox_unspool = FALSE;
929 #endif
930 BOOL no_multiline_responses = FALSE;
931
932 uid_t original_euid;
933 gid_t originator_gid;
934 uschar *originator_login = NULL;
935 uschar *originator_name = NULL;
936 uid_t originator_uid;
937 uschar *override_local_interfaces = NULL;
938 uschar *override_pid_file_path = NULL;
939
940 BOOL parse_allow_group = FALSE;
941 BOOL parse_found_group = FALSE;
942 uschar *percent_hack_domains = NULL;
943 uschar *pid_file_path = US PID_FILE_PATH
944 "\0<--------------Space to patch pid_file_path->";
945 BOOL pipelining_enable = TRUE;
946 uschar *pipelining_advertise_hosts = US"*";
947 BOOL preserve_message_logs = FALSE;
948 uschar *primary_hostname = NULL;
949 BOOL print_topbitchars = FALSE;
950 uschar process_info[PROCESS_INFO_SIZE];
951 int process_info_len = 0;
952 uschar *process_log_path = NULL;
953 BOOL prod_requires_admin = TRUE;
954
955 #ifdef EXPERIMENTAL_PROXY
956 uschar *proxy_host_address = US"";
957 int proxy_host_port = 0;
958 uschar *proxy_required_hosts = US"";
959 BOOL proxy_session = FALSE;
960 BOOL proxy_session_failed = FALSE;
961 uschar *proxy_target_address = US"";
962 int proxy_target_port = 0;
963 #endif
964
965 uschar *prvscheck_address = NULL;
966 uschar *prvscheck_keynum = NULL;
967 uschar *prvscheck_result = NULL;
968
969
970 uschar *qualify_domain_recipient = NULL;
971 uschar *qualify_domain_sender = NULL;
972 BOOL queue_2stage = FALSE;
973 uschar *queue_domains = NULL;
974 int queue_interval = -1;
975 BOOL queue_list_requires_admin = TRUE;
976 BOOL queue_only = FALSE;
977 uschar *queue_only_file = NULL;
978 int queue_only_load = -1;
979 BOOL queue_only_load_latch = TRUE;
980 BOOL queue_only_override = TRUE;
981 BOOL queue_only_policy = FALSE;
982 BOOL queue_run_first_delivery = FALSE;
983 BOOL queue_run_force = FALSE;
984 BOOL queue_run_in_order = FALSE;
985 BOOL queue_run_local = FALSE;
986 int queue_run_max = 5;
987 pid_t queue_run_pid = (pid_t)0;
988 int queue_run_pipe = -1;
989 BOOL queue_running = FALSE;
990 BOOL queue_smtp = FALSE;
991 uschar *queue_smtp_domains = NULL;
992
993 unsigned int random_seed = 0;
994 tree_node *ratelimiters_cmd = NULL;
995 tree_node *ratelimiters_conn = NULL;
996 tree_node *ratelimiters_mail = NULL;
997 uschar *raw_active_hostname = NULL;
998 uschar *raw_sender = NULL;
999 uschar **raw_recipients = NULL;
1000 int raw_recipients_count = 0;
1001
1002 int rcpt_count = 0;
1003 int rcpt_fail_count = 0;
1004 int rcpt_defer_count = 0;
1005 gid_t real_gid;
1006 uid_t real_uid;
1007 BOOL really_exim = TRUE;
1008 BOOL receive_call_bombout = FALSE;
1009 int receive_linecount = 0;
1010 int receive_messagecount = 0;
1011 int receive_timeout = 0;
1012 int received_count = 0;
1013 uschar *received_for = NULL;
1014
1015 /* This is the default text for Received headers generated by Exim. The
1016 date will be automatically added on the end. */
1017
1018 uschar *received_header_text = US
1019 "Received: "
1020 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1021 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1022 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1023 "by $primary_hostname "
1024 "${if def:received_protocol {with $received_protocol}} "
1025 #ifdef SUPPORT_TLS
1026 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1027 #endif
1028 "(Exim $version_number)\n\t"
1029 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1030 "id $message_exim_id"
1031 "${if def:received_for {\n\tfor $received_for}}"
1032 "\0<---------------Space to patch received_header_text->";
1033
1034 int received_headers_max = 30;
1035 uschar *received_protocol = NULL;
1036 int received_time = 0;
1037 uschar *recipient_data = NULL;
1038 uschar *recipient_unqualified_hosts = NULL;
1039 uschar *recipient_verify_failure = NULL;
1040 int recipients_count = 0;
1041 BOOL recipients_discarded = FALSE;
1042 recipient_item *recipients_list = NULL;
1043 int recipients_list_max = 0;
1044 int recipients_max = 0;
1045 BOOL recipients_max_reject = FALSE;
1046 const pcre *regex_AUTH = NULL;
1047 const pcre *regex_check_dns_names = NULL;
1048 const pcre *regex_From = NULL;
1049 const pcre *regex_IGNOREQUOTA = NULL;
1050 const pcre *regex_PIPELINING = NULL;
1051 const pcre *regex_SIZE = NULL;
1052 const pcre *regex_smtp_code = NULL;
1053 const pcre *regex_ismsgid = NULL;
1054 #ifdef WHITELIST_D_MACROS
1055 const pcre *regex_whitelisted_macro = NULL;
1056 #endif
1057 #ifdef WITH_CONTENT_SCAN
1058 uschar *regex_match_string = NULL;
1059 #endif
1060 int remote_delivery_count = 0;
1061 int remote_max_parallel = 2;
1062 uschar *remote_sort_domains = NULL;
1063 int retry_data_expire = 7*24*60*60;
1064 int retry_interval_max = 24*60*60;
1065 int retry_maximum_timeout = 0; /* set from retry config */
1066 retry_config *retries = NULL;
1067 uschar *return_path = NULL;
1068 BOOL return_path_remove = TRUE;
1069 int rewrite_existflags = 0;
1070 uschar *rfc1413_hosts = US"*";
1071 int rfc1413_query_timeout = 5;
1072 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1073 uid_t root_gid = ROOT_GID;
1074 uid_t root_uid = ROOT_UID;
1075
1076 router_instance *routers = NULL;
1077 router_instance router_defaults = {
1078 NULL, /* chain pointer */
1079 NULL, /* name */
1080 NULL, /* info */
1081 NULL, /* private options block pointer */
1082 NULL, /* driver name */
1083
1084 NULL, /* address_data */
1085 #ifdef EXPERIMENTAL_BRIGHTMAIL
1086 NULL, /* bmi_rule */
1087 #endif
1088 NULL, /* cannot_route_message */
1089 NULL, /* condition */
1090 NULL, /* current_directory */
1091 NULL, /* debug_string */
1092 NULL, /* domains */
1093 NULL, /* errors_to */
1094 NULL, /* expand_gid */
1095 NULL, /* expand_uid */
1096 NULL, /* expand_more */
1097 NULL, /* expand_unseen */
1098 NULL, /* extra_headers */
1099 NULL, /* fallback_hosts */
1100 NULL, /* home_directory */
1101 NULL, /* ignore_target_hosts */
1102 NULL, /* local_parts */
1103 NULL, /* pass_router_name */
1104 NULL, /* prefix */
1105 NULL, /* redirect_router_name */
1106 NULL, /* remove_headers */
1107 NULL, /* require_files */
1108 NULL, /* router_home_directory */
1109 US"freeze", /* self */
1110 NULL, /* senders */
1111 NULL, /* suffix */
1112 NULL, /* translate_ip_address */
1113 NULL, /* transport_name */
1114
1115 TRUE, /* address_test */
1116 #ifdef EXPERIMENTAL_BRIGHTMAIL
1117 FALSE, /* bmi_deliver_alternate */
1118 FALSE, /* bmi_deliver_default */
1119 FALSE, /* bmi_dont_deliver */
1120 #endif
1121 TRUE, /* expn */
1122 FALSE, /* caseful_local_part */
1123 FALSE, /* check_local_user */
1124 FALSE, /* disable_logging */
1125 FALSE, /* fail_verify_recipient */
1126 FALSE, /* fail_verify_sender */
1127 FALSE, /* gid_set */
1128 FALSE, /* initgroups */
1129 TRUE_UNSET, /* log_as_local */
1130 TRUE, /* more */
1131 FALSE, /* pass_on_timeout */
1132 FALSE, /* prefix_optional */
1133 TRUE, /* repeat_use */
1134 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1135 FALSE, /* same_domain_copy_routing */
1136 FALSE, /* self_rewrite */
1137 FALSE, /* suffix_optional */
1138 FALSE, /* verify_only */
1139 TRUE, /* verify_recipient */
1140 TRUE, /* verify_sender */
1141 FALSE, /* uid_set */
1142 FALSE, /* unseen */
1143 #ifdef EXPERIMENTAL_DSN
1144 FALSE, /* dsn_lasthop */
1145 #endif
1146
1147 self_freeze, /* self_code */
1148 (uid_t)(-1), /* uid */
1149 (gid_t)(-1), /* gid */
1150
1151 NULL, /* fallback_hostlist */
1152 NULL, /* transport instance */
1153 NULL, /* pass_router */
1154 NULL /* redirect_router */
1155 };
1156
1157 uschar *router_name = NULL;
1158
1159 ip_address_item *running_interfaces = NULL;
1160 BOOL running_in_test_harness = FALSE;
1161
1162 /* This is a weird one. The following string gets patched in the binary by the
1163 script that sets up a copy of Exim for running in the test harness. It seems
1164 that compilers are now clever, and share constant strings if they can.
1165 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1166 make use of the end of this string in order to save space. So the patching then
1167 wrecks this. We defeat this optimization by adding some additional characters
1168 onto the end of the string. */
1169
1170 uschar *running_status = US">>>running<<<" "\0EXTRA";
1171
1172 int runrc = 0;
1173
1174 uschar *search_error_message = NULL;
1175 BOOL search_find_defer = FALSE;
1176 uschar *self_hostname = NULL;
1177 uschar *sender_address = NULL;
1178 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1179 uschar *sender_address_data = NULL;
1180 BOOL sender_address_forced = FALSE;
1181 uschar *sender_address_unrewritten = NULL;
1182 uschar *sender_data = NULL;
1183 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1184 uschar *sender_fullhost = NULL;
1185 uschar *sender_helo_name = NULL;
1186 uschar **sender_host_aliases = &no_aliases;
1187 uschar *sender_host_address = NULL;
1188 uschar *sender_host_authenticated = NULL;
1189 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1190 BOOL sender_host_dnssec = FALSE;
1191 uschar *sender_host_name = NULL;
1192 int sender_host_port = 0;
1193 BOOL sender_host_notsocket = FALSE;
1194 BOOL sender_host_unknown = FALSE;
1195 uschar *sender_ident = NULL;
1196 BOOL sender_local = FALSE;
1197 BOOL sender_name_forced = FALSE;
1198 uschar *sender_rate = NULL;
1199 uschar *sender_rate_limit = NULL;
1200 uschar *sender_rate_period = NULL;
1201 uschar *sender_rcvhost = NULL;
1202 BOOL sender_set_untrusted = FALSE;
1203 uschar *sender_unqualified_hosts = NULL;
1204 uschar *sender_verify_failure = NULL;
1205 address_item *sender_verified_list = NULL;
1206 address_item *sender_verified_failed = NULL;
1207 int sender_verified_rc = -1;
1208 BOOL sender_verified_responded = FALSE;
1209 uschar *sending_ip_address = NULL;
1210 int sending_port = -1;
1211 SIGNAL_BOOL sigalrm_seen = FALSE;
1212 uschar **sighup_argv = NULL;
1213 int smtp_accept_count = 0;
1214 BOOL smtp_accept_keepalive = TRUE;
1215 int smtp_accept_max = 20;
1216 int smtp_accept_max_nonmail= 10;
1217 uschar *smtp_accept_max_nonmail_hosts = US"*";
1218 int smtp_accept_max_per_connection = 1000;
1219 uschar *smtp_accept_max_per_host = NULL;
1220 int smtp_accept_queue = 0;
1221 int smtp_accept_queue_per_connection = 10;
1222 int smtp_accept_reserve = 0;
1223 uschar *smtp_active_hostname = NULL;
1224 BOOL smtp_authenticated = FALSE;
1225 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1226 "Exim $version_number $tod_full"
1227 "\0<---------------Space to patch smtp_banner->";
1228 BOOL smtp_batched_input = FALSE;
1229 BOOL smtp_check_spool_space = TRUE;
1230 int smtp_ch_index = 0;
1231 uschar *smtp_cmd_argument = NULL;
1232 uschar *smtp_cmd_buffer = NULL;
1233 time_t smtp_connection_start = 0;
1234 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1235 int smtp_connect_backlog = 20;
1236 double smtp_delay_mail = 0.0;
1237 double smtp_delay_rcpt = 0.0;
1238 BOOL smtp_enforce_sync = TRUE;
1239 FILE *smtp_in = NULL;
1240 BOOL smtp_input = FALSE;
1241 int smtp_load_reserve = -1;
1242 int smtp_mailcmd_count = 0;
1243 FILE *smtp_out = NULL;
1244 uschar *smtp_etrn_command = NULL;
1245 BOOL smtp_etrn_serialize = TRUE;
1246 int smtp_max_synprot_errors= 3;
1247 int smtp_max_unknown_commands = 3;
1248 uschar *smtp_notquit_reason = NULL;
1249 uschar *smtp_ratelimit_hosts = NULL;
1250 uschar *smtp_ratelimit_mail = NULL;
1251 uschar *smtp_ratelimit_rcpt = NULL;
1252 uschar *smtp_read_error = US"";
1253 int smtp_receive_timeout = 5*60;
1254 uschar *smtp_reserve_hosts = NULL;
1255 BOOL smtp_return_error_details = FALSE;
1256 int smtp_rlm_base = 0;
1257 double smtp_rlm_factor = 0.0;
1258 int smtp_rlm_limit = 0;
1259 int smtp_rlm_threshold = INT_MAX;
1260 int smtp_rlr_base = 0;
1261 double smtp_rlr_factor = 0.0;
1262 int smtp_rlr_limit = 0;
1263 int smtp_rlr_threshold = INT_MAX;
1264 BOOL smtp_use_pipelining = FALSE;
1265 BOOL smtp_use_size = FALSE;
1266
1267 #ifdef WITH_CONTENT_SCAN
1268 uschar *spamd_address = US"127.0.0.1 783";
1269 uschar *spam_bar = NULL;
1270 uschar *spam_report = NULL;
1271 uschar *spam_score = NULL;
1272 uschar *spam_score_int = NULL;
1273 #endif
1274 #ifdef EXPERIMENTAL_SPF
1275 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1276 uschar *spf_header_comment = NULL;
1277 uschar *spf_received = NULL;
1278 uschar *spf_result = NULL;
1279 uschar *spf_smtp_comment = NULL;
1280 #endif
1281
1282 BOOL split_spool_directory = FALSE;
1283 uschar *spool_directory = US SPOOL_DIRECTORY
1284 "\0<--------------Space to patch spool_directory->";
1285 #ifdef EXPERIMENTAL_SRS
1286 uschar *srs_config = NULL;
1287 uschar *srs_db_address = NULL;
1288 uschar *srs_db_key = NULL;
1289 int srs_hashlength = 6;
1290 int srs_hashmin = -1;
1291 int srs_maxage = 31;
1292 uschar *srs_orig_recipient = NULL;
1293 uschar *srs_orig_sender = NULL;
1294 uschar *srs_recipient = NULL;
1295 uschar *srs_secrets = NULL;
1296 uschar *srs_status = NULL;
1297 BOOL srs_usehash = TRUE;
1298 BOOL srs_usetimestamp = TRUE;
1299 #endif
1300 BOOL strict_acl_vars = FALSE;
1301 int string_datestamp_offset= -1;
1302 int string_datestamp_length= 0;
1303 int string_datestamp_type = -1;
1304 BOOL strip_excess_angle_brackets = FALSE;
1305 BOOL strip_trailing_dot = FALSE;
1306 uschar *submission_domain = NULL;
1307 BOOL submission_mode = FALSE;
1308 uschar *submission_name = NULL;
1309 BOOL suppress_local_fixups = FALSE;
1310 BOOL suppress_local_fixups_default = FALSE;
1311 BOOL synchronous_delivery = FALSE;
1312 BOOL syslog_duplication = TRUE;
1313 int syslog_facility = LOG_MAIL;
1314 uschar *syslog_processname = US"exim";
1315 BOOL syslog_timestamp = TRUE;
1316 uschar *system_filter = NULL;
1317
1318 uschar *system_filter_directory_transport = NULL;
1319 uschar *system_filter_file_transport = NULL;
1320 uschar *system_filter_pipe_transport = NULL;
1321 uschar *system_filter_reply_transport = NULL;
1322
1323 gid_t system_filter_gid = 0;
1324 BOOL system_filter_gid_set = FALSE;
1325 uid_t system_filter_uid = (uid_t)-1;
1326 BOOL system_filter_uid_set = FALSE;
1327 BOOL system_filtering = FALSE;
1328
1329 BOOL tcp_nodelay = TRUE;
1330 #ifdef USE_TCP_WRAPPERS
1331 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1332 #endif
1333 int test_harness_load_avg = 0;
1334 int thismessage_size_limit = 0;
1335 int timeout_frozen_after = 0;
1336 BOOL timestamps_utc = FALSE;
1337
1338 #ifdef EXPERIMENTAL_TPDA
1339 int tpda_defer_errno = 0;
1340 uschar *tpda_defer_errstr = NULL;
1341 uschar *tpda_delivery_ip = NULL;
1342 int tpda_delivery_port = 0;
1343 uschar *tpda_delivery_fqdn = NULL;
1344 uschar *tpda_delivery_local_part= NULL;
1345 uschar *tpda_delivery_domain = NULL;
1346 uschar *tpda_delivery_confirmation = NULL;
1347 #endif
1348
1349 transport_instance *transports = NULL;
1350
1351 transport_instance transport_defaults = {
1352 NULL, /* chain pointer */
1353 NULL, /* name */
1354 NULL, /* info */
1355 NULL, /* private options block pointer */
1356 NULL, /* driver name */
1357 NULL, /* setup entry point */
1358 1, /* batch_max */
1359 NULL, /* batch_id */
1360 NULL, /* home_dir */
1361 NULL, /* current_dir */
1362 TRUE, /* multi-domain */
1363 FALSE, /* overrides_hosts */
1364 100, /* max_addresses */
1365 500, /* connection_max_messages */
1366 FALSE, /* deliver_as_creator */
1367 FALSE, /* disable_logging */
1368 FALSE, /* initgroups */
1369 FALSE, /* uid_set */
1370 FALSE, /* gid_set */
1371 (uid_t)(-1), /* uid */
1372 (gid_t)(-1), /* gid */
1373 NULL, /* expand_uid */
1374 NULL, /* expand_gid */
1375 NULL, /* warn_message */
1376 NULL, /* shadow */
1377 NULL, /* shadow_condition */
1378 NULL, /* filter_command */
1379 NULL, /* add_headers */
1380 NULL, /* remove_headers */
1381 NULL, /* return_path */
1382 NULL, /* debug_string */
1383 NULL, /* message_size_limit */
1384 NULL, /* headers_rewrite */
1385 NULL, /* rewrite_rules */
1386 0, /* rewrite_existflags */
1387 300, /* filter_timeout */
1388 FALSE, /* body_only */
1389 FALSE, /* delivery_date_add */
1390 FALSE, /* envelope_to_add */
1391 FALSE, /* headers_only */
1392 FALSE, /* rcpt_include_affixes */
1393 FALSE, /* return_path_add */
1394 FALSE, /* return_output */
1395 FALSE, /* return_fail_output */
1396 FALSE, /* log_output */
1397 FALSE, /* log_fail_output */
1398 FALSE, /* log_defer_output */
1399 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1400 1 nor 0 so can detect unset */
1401 #ifdef EXPERIMENTAL_TPDA
1402 ,NULL /* tpda_delivery_action */
1403 #endif
1404 };
1405
1406 int transport_count;
1407 uschar *transport_name = NULL;
1408 int transport_newlines;
1409 uschar **transport_filter_argv = NULL;
1410 int transport_filter_timeout;
1411 BOOL transport_filter_timed_out = FALSE;
1412 int transport_write_timeout= 0;
1413
1414 tree_node *tree_dns_fails = NULL;
1415 tree_node *tree_duplicates = NULL;
1416 tree_node *tree_nonrecipients = NULL;
1417 tree_node *tree_unusable = NULL;
1418
1419 BOOL trusted_caller = FALSE;
1420 BOOL trusted_config = TRUE;
1421 gid_t *trusted_groups = NULL;
1422 uid_t *trusted_users = NULL;
1423 uschar *timezone_string = US TIMEZONE_DEFAULT;
1424
1425 uschar *unknown_login = NULL;
1426 uschar *unknown_username = NULL;
1427 uschar *untrusted_set_sender = NULL;
1428
1429 /* A regex for matching a "From_" line in an incoming message, in the form
1430
1431 From ph10 Fri Jan 5 12:35 GMT 1996
1432
1433 which the "mail" commands send to the MTA (undocumented, of course), or in
1434 the form
1435
1436 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1437
1438 which is apparently used by some UUCPs, despite it not being in RFC 976.
1439 Because of variations in time formats, just match up to the minutes. That
1440 should be sufficient. Examples have been seen of time fields like 12:1:03,
1441 so just require one digit for hours and minutes. The weekday is also absent
1442 in some forms. */
1443
1444 uschar *uucp_from_pattern = US
1445 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1446 "(?:" /* Non-extracting bracket */
1447 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1448 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1449 ")" /* End alternation */
1450 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1451
1452 uschar *uucp_from_sender = US"$1";
1453
1454 uschar *warn_message_file = NULL;
1455 uschar *warnmsg_delay = NULL;
1456 uschar *warnmsg_recipients = NULL;
1457 BOOL write_rejectlog = TRUE;
1458
1459 uschar *version_copyright =
1460 US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1461 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1462 uschar *version_date = US"?";
1463 uschar *version_cnumber = US"????";
1464 uschar *version_string = US"?";
1465
1466 int warning_count = 0;
1467
1468 /* End of globals.c */
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