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