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Add dns_trust_aa
[exim.git] / src / src / globals.c
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2015 */
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 uschar *tls_eccurve = US"prime256v1";
160 #ifndef DISABLE_OCSP
161 uschar *tls_ocsp_file = NULL;
162 #endif
163 BOOL tls_offered = FALSE;
164 uschar *tls_privatekey = NULL;
165 BOOL tls_remember_esmtp = FALSE;
166 uschar *tls_require_ciphers = NULL;
167 uschar *tls_try_verify_hosts = NULL;
168 uschar *tls_verify_certificates= US"system";
169 uschar *tls_verify_hosts = NULL;
170 #endif
171
172 #ifndef DISABLE_PRDR
173 /* Per Recipient Data Response variables */
174 BOOL prdr_enable = FALSE;
175 BOOL prdr_requested = FALSE;
176 const pcre *regex_PRDR = NULL;
177 #endif
178
179 #ifdef EXPERIMENTAL_INTERNATIONAL
180 const pcre *regex_UTF8 = NULL;
181 #endif
182
183 /* Input-reading functions for messages, so we can use special ones for
184 incoming TCP/IP. The defaults use stdin. We never need these for any
185 stand-alone tests. */
186
187 #ifndef STAND_ALONE
188 int (*receive_getc)(void) = stdin_getc;
189 int (*receive_ungetc)(int) = stdin_ungetc;
190 int (*receive_feof)(void) = stdin_feof;
191 int (*receive_ferror)(void) = stdin_ferror;
192 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
193 #endif
194
195
196 /* List of per-address expansion variables for clearing and saving/restoring
197 when verifying one address while routing/verifying another. We have to have
198 the size explicit, because it is referenced from more than one module. */
199
200 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
201 CUSS &deliver_address_data,
202 CUSS &deliver_domain,
203 CUSS &deliver_domain_data,
204 CUSS &deliver_domain_orig,
205 CUSS &deliver_domain_parent,
206 CUSS &deliver_localpart,
207 CUSS &deliver_localpart_data,
208 CUSS &deliver_localpart_orig,
209 CUSS &deliver_localpart_parent,
210 CUSS &deliver_localpart_prefix,
211 CUSS &deliver_localpart_suffix,
212 CUSS (uschar **)(&deliver_recipients),
213 CUSS &deliver_host,
214 CUSS &deliver_home,
215 CUSS &address_file,
216 CUSS &address_pipe,
217 CUSS &self_hostname,
218 NULL };
219
220 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
221
222 /* General global variables */
223
224 header_line *acl_added_headers = NULL;
225 tree_node *acl_anchor = NULL;
226 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
227 NULL, NULL, NULL, NULL};
228 int acl_narg = 0;
229
230 uschar *acl_not_smtp = NULL;
231 #ifdef WITH_CONTENT_SCAN
232 uschar *acl_not_smtp_mime = NULL;
233 #endif
234 uschar *acl_not_smtp_start = NULL;
235 uschar *acl_removed_headers = NULL;
236 uschar *acl_smtp_auth = NULL;
237 uschar *acl_smtp_connect = NULL;
238 uschar *acl_smtp_data = NULL;
239 #ifndef DISABLE_PRDR
240 uschar *acl_smtp_data_prdr = US"accept";
241 #endif
242 #ifndef DISABLE_DKIM
243 uschar *acl_smtp_dkim = NULL;
244 #endif
245 uschar *acl_smtp_etrn = NULL;
246 uschar *acl_smtp_expn = NULL;
247 uschar *acl_smtp_helo = NULL;
248 uschar *acl_smtp_mail = NULL;
249 uschar *acl_smtp_mailauth = NULL;
250 #ifdef WITH_CONTENT_SCAN
251 uschar *acl_smtp_mime = NULL;
252 #endif
253 uschar *acl_smtp_notquit = NULL;
254 uschar *acl_smtp_predata = NULL;
255 uschar *acl_smtp_quit = NULL;
256 uschar *acl_smtp_rcpt = NULL;
257 uschar *acl_smtp_starttls = NULL;
258 uschar *acl_smtp_vrfy = NULL;
259
260 BOOL acl_temp_details = FALSE;
261 tree_node *acl_var_c = NULL;
262 tree_node *acl_var_m = NULL;
263 uschar *acl_verify_message = NULL;
264 string_item *acl_warn_logged = NULL;
265
266 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
267 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
268
269 uschar *acl_wherenames[] = { US"RCPT",
270 US"MAIL",
271 US"PREDATA",
272 US"MIME",
273 US"DKIM",
274 US"DATA",
275 #ifndef DISABLE_PRDR
276 US"PRDR",
277 #endif
278 US"non-SMTP",
279 US"AUTH",
280 US"connection",
281 US"ETRN",
282 US"EXPN",
283 US"EHLO or HELO",
284 US"MAILAUTH",
285 US"non-SMTP-start",
286 US"NOTQUIT",
287 US"QUIT",
288 US"STARTTLS",
289 US"VRFY",
290 US"delivery",
291 US"unknown"
292 };
293
294 uschar *acl_wherecodes[] = { US"550", /* RCPT */
295 US"550", /* MAIL */
296 US"550", /* PREDATA */
297 US"550", /* MIME */
298 US"550", /* DKIM */
299 US"550", /* DATA */
300 #ifndef DISABLE_PRDR
301 US"550", /* RCPT PRDR */
302 #endif
303 US"0", /* not SMTP; not relevant */
304 US"503", /* AUTH */
305 US"550", /* connect */
306 US"458", /* ETRN */
307 US"550", /* EXPN */
308 US"550", /* HELO/EHLO */
309 US"0", /* MAILAUTH; not relevant */
310 US"0", /* not SMTP; not relevant */
311 US"0", /* NOTQUIT; not relevant */
312 US"0", /* QUIT; not relevant */
313 US"550", /* STARTTLS */
314 US"252", /* VRFY */
315 US"0", /* delivery; not relevant */
316 US"0" /* unknown; not relevant */
317 };
318
319 BOOL active_local_from_check = FALSE;
320 BOOL active_local_sender_retain = FALSE;
321 int body_8bitmime = 0;
322 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
323 address_item *addr_duplicate = NULL;
324
325 address_item address_defaults = {
326 NULL, /* next */
327 NULL, /* parent */
328 NULL, /* first */
329 NULL, /* dupof */
330 NULL, /* start_router */
331 NULL, /* router */
332 NULL, /* transport */
333 NULL, /* host_list */
334 NULL, /* host_used */
335 NULL, /* fallback_hosts */
336 NULL, /* reply */
337 NULL, /* retries */
338 NULL, /* address */
339 NULL, /* unique */
340 NULL, /* cc_local_part */
341 NULL, /* lc_local_part */
342 NULL, /* local_part */
343 NULL, /* prefix */
344 NULL, /* suffix */
345 NULL, /* domain */
346 NULL, /* address_retry_key */
347 NULL, /* domain_retry_key */
348 NULL, /* current_dir */
349 NULL, /* home_dir */
350 NULL, /* message */
351 NULL, /* user_message */
352 NULL, /* onetime_parent */
353 NULL, /* pipe_expandn */
354 NULL, /* return_filename */
355 NULL, /* self_hostname */
356 NULL, /* shadow_message */
357 #ifdef SUPPORT_TLS
358 NULL, /* cipher */
359 NULL, /* ourcert */
360 NULL, /* peercert */
361 NULL, /* peerdn */
362 OCSP_NOT_REQ, /* ocsp */
363 #endif
364 NULL, /* authenticator */
365 NULL, /* auth_id */
366 NULL, /* auth_sndr */
367 NULL, /* dsn_orcpt */
368 0, /* dsn_flags */
369 0, /* dsn_aware */
370 (uid_t)(-1), /* uid */
371 (gid_t)(-1), /* gid */
372 0, /* flags */
373 { 0 }, /* domain_cache - any larger array should be zeroed */
374 { 0 }, /* localpart_cache - ditto */
375 -1, /* mode */
376 0, /* more_errno */
377 ERRNO_UNKNOWNERROR, /* basic_errno */
378 0, /* child_count */
379 -1, /* return_file */
380 SPECIAL_NONE, /* special_action */
381 DEFER, /* transport_return */
382 { /* fields that are propagated to children */
383 NULL, /* address_data */
384 NULL, /* domain_data */
385 NULL, /* localpart_data */
386 NULL, /* errors_address */
387 NULL, /* extra_headers */
388 NULL, /* remove_headers */
389 #ifdef EXPERIMENTAL_SRS
390 NULL, /* srs_sender */
391 #endif
392 #ifdef EXPERIMENTAL_INTERNATIONAL
393 FALSE, /* utf8 */
394 #endif
395 }
396 };
397
398 uschar *address_file = NULL;
399 uschar *address_pipe = NULL;
400 BOOL address_test_mode = FALSE;
401 tree_node *addresslist_anchor = NULL;
402 int addresslist_count = 0;
403 gid_t *admin_groups = NULL;
404 BOOL admin_user = FALSE;
405 BOOL allow_auth_unadvertised= FALSE;
406 BOOL allow_domain_literals = FALSE;
407 BOOL allow_mx_to_ip = FALSE;
408 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
409 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
410 BOOL allow_utf8_domains = FALSE;
411 uschar *authenticated_fail_id = NULL;
412 uschar *authenticated_id = NULL;
413 uschar *authenticated_sender = NULL;
414 BOOL authentication_failed = FALSE;
415 auth_instance *auths = NULL;
416 uschar *auth_advertise_hosts = US"*";
417 auth_instance auth_defaults = {
418 NULL, /* chain pointer */
419 NULL, /* name */
420 NULL, /* info */
421 NULL, /* private options block pointer */
422 NULL, /* driver_name */
423 NULL, /* advertise_condition */
424 NULL, /* client_condition */
425 NULL, /* public_name */
426 NULL, /* set_id */
427 NULL, /* set_client_id */
428 NULL, /* server_mail_auth_condition */
429 NULL, /* server_debug_string */
430 NULL, /* server_condition */
431 FALSE, /* client */
432 FALSE, /* server */
433 FALSE /* advertised */
434 };
435
436 uschar *auth_defer_msg = US"reason not recorded";
437 uschar *auth_defer_user_msg = US"";
438 uschar *auth_vars[AUTH_VARS];
439 int auto_thaw = 0;
440 #ifdef WITH_CONTENT_SCAN
441 BOOL av_failed = FALSE;
442 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
443 #endif
444
445 BOOL background_daemon = TRUE;
446
447 #if BASE_62 == 62
448 uschar *base62_chars=
449 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
450 #else
451 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
452 #endif
453
454 uschar *bi_command = NULL;
455 uschar *big_buffer = NULL;
456 int big_buffer_size = BIG_BUFFER_SIZE;
457 #ifdef EXPERIMENTAL_BRIGHTMAIL
458 uschar *bmi_alt_location = NULL;
459 uschar *bmi_base64_tracker_verdict = NULL;
460 uschar *bmi_base64_verdict = NULL;
461 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
462 int bmi_deliver = 1;
463 int bmi_run = 0;
464 uschar *bmi_verdicts = NULL;
465 #endif
466 int body_linecount = 0;
467 int body_zerocount = 0;
468 uschar *bounce_message_file = NULL;
469 uschar *bounce_message_text = NULL;
470 uschar *bounce_recipient = NULL;
471 BOOL bounce_return_body = TRUE;
472 BOOL bounce_return_message = TRUE;
473 int bounce_return_size_limit = 100*1024;
474 uschar *bounce_sender_authentication = NULL;
475 int bsmtp_transaction_linecount = 0;
476
477 int callout_cache_domain_positive_expire = 7*24*60*60;
478 int callout_cache_domain_negative_expire = 3*60*60;
479 int callout_cache_positive_expire = 24*60*60;
480 int callout_cache_negative_expire = 2*60*60;
481 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
482 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
483 int check_log_inodes = 0;
484 int check_log_space = 0;
485 BOOL check_rfc2047_length = TRUE;
486 int check_spool_inodes = 0;
487 int check_spool_space = 0;
488 uschar *client_authenticator = NULL;
489 uschar *client_authenticated_id = NULL;
490 uschar *client_authenticated_sender = NULL;
491 int clmacro_count = 0;
492 uschar *clmacros[MAX_CLMACROS];
493 BOOL config_changed = FALSE;
494 FILE *config_file = NULL;
495 uschar *config_filename = NULL;
496 int config_lineno = 0;
497 #ifdef CONFIGURE_GROUP
498 gid_t config_gid = CONFIGURE_GROUP;
499 #endif
500 uschar *config_main_filelist = US CONFIGURE_FILE
501 "\0<-----------Space to patch configure_filename->";
502 uschar *config_main_filename = NULL;
503 uschar *config_main_directory = NULL;
504
505 #ifdef CONFIGURE_OWNER
506 uid_t config_uid = CONFIGURE_OWNER;
507 #endif
508
509 int connection_max_messages= -1;
510 uschar *continue_hostname = NULL;
511 uschar *continue_host_address = NULL;
512 BOOL continue_more = FALSE;
513 int continue_sequence = 1;
514 uschar *continue_transport = NULL;
515
516 uschar *csa_status = NULL;
517 cut_t cutthrough = {
518 FALSE, /* delivery: when to attempt */
519 -1, /* fd: open connection */
520 0, /* nrcpt: number of addresses */
521 };
522
523 BOOL daemon_listen = FALSE;
524 uschar *daemon_smtp_port = US"smtp";
525 int daemon_startup_retries = 9;
526 int daemon_startup_sleep = 30;
527
528 #ifdef EXPERIMENTAL_DCC
529 BOOL dcc_direct_add_header = FALSE;
530 uschar *dcc_header = NULL;
531 uschar *dcc_result = NULL;
532 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
533 uschar *dccifd_options = US"header";
534 #endif
535
536 BOOL debug_daemon = FALSE;
537 int debug_fd = -1;
538 FILE *debug_file = NULL;
539 bit_table debug_options[] = {
540 { US"acl", D_acl },
541 { US"all", D_all },
542 { US"auth", D_auth },
543 { US"deliver", D_deliver },
544 { US"dns", D_dns },
545 { US"dnsbl", D_dnsbl },
546 { US"exec", D_exec },
547 { US"expand", D_expand },
548 { US"filter", D_filter },
549 { US"hints_lookup", D_hints_lookup },
550 { US"host_lookup", D_host_lookup },
551 { US"ident", D_ident },
552 { US"interface", D_interface },
553 { US"lists", D_lists },
554 { US"load", D_load },
555 { US"local_scan", D_local_scan },
556 { US"lookup", D_lookup },
557 { US"memory", D_memory },
558 { US"pid", D_pid },
559 { US"process_info", D_process_info },
560 { US"queue_run", D_queue_run },
561 { US"receive", D_receive },
562 { US"resolver", D_resolver },
563 { US"retry", D_retry },
564 { US"rewrite", D_rewrite },
565 { US"route", D_route },
566 { US"timestamp", D_timestamp },
567 { US"tls", D_tls },
568 { US"transport", D_transport },
569 { US"uid", D_uid },
570 { US"verify", D_verify }
571 };
572 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
573 unsigned int debug_selector = 0;
574 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
575 uschar *delay_warning_condition=
576 US"${if or {"
577 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
578 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
579 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
580 "} {no}{yes}}";
581 BOOL delivery_date_remove = TRUE;
582 uschar *deliver_address_data = NULL;
583 int deliver_datafile = -1;
584 const uschar *deliver_domain = NULL;
585 uschar *deliver_domain_data = NULL;
586 const uschar *deliver_domain_orig = NULL;
587 const uschar *deliver_domain_parent = NULL;
588 BOOL deliver_drop_privilege = FALSE;
589 BOOL deliver_firsttime = FALSE;
590 BOOL deliver_force = FALSE;
591 BOOL deliver_freeze = FALSE;
592 time_t deliver_frozen_at = 0;
593 uschar *deliver_home = NULL;
594 const uschar *deliver_host = NULL;
595 const uschar *deliver_host_address = NULL;
596 int deliver_host_port = 0;
597 uschar *deliver_in_buffer = NULL;
598 ino_t deliver_inode = 0;
599 uschar *deliver_localpart = NULL;
600 uschar *deliver_localpart_data = NULL;
601 uschar *deliver_localpart_orig = NULL;
602 uschar *deliver_localpart_parent = NULL;
603 uschar *deliver_localpart_prefix = NULL;
604 uschar *deliver_localpart_suffix = NULL;
605 BOOL deliver_force_thaw = FALSE;
606 BOOL deliver_manual_thaw = FALSE;
607 uschar *deliver_out_buffer = NULL;
608 int deliver_queue_load_max = -1;
609 address_item *deliver_recipients = NULL;
610 uschar *deliver_selectstring = NULL;
611 BOOL deliver_selectstring_regex = FALSE;
612 uschar *deliver_selectstring_sender = NULL;
613 BOOL deliver_selectstring_sender_regex = FALSE;
614 #ifdef WITH_OLD_DEMIME
615 int demime_errorlevel = 0;
616 int demime_ok = 0;
617 uschar *demime_reason = NULL;
618 #endif
619 BOOL disable_callout_flush = FALSE;
620 BOOL disable_delay_flush = FALSE;
621 #ifdef ENABLE_DISABLE_FSYNC
622 BOOL disable_fsync = FALSE;
623 #endif
624 BOOL disable_ipv6 = FALSE;
625 BOOL disable_logging = FALSE;
626
627 #ifndef DISABLE_DKIM
628 uschar *dkim_cur_signer = NULL;
629 uschar *dkim_signers = NULL;
630 uschar *dkim_signing_domain = NULL;
631 uschar *dkim_signing_selector = NULL;
632 uschar *dkim_verify_signers = US"$dkim_signers";
633 BOOL dkim_collect_input = FALSE;
634 BOOL dkim_disable_verify = FALSE;
635 #endif
636 #ifdef EXPERIMENTAL_DMARC
637 BOOL dmarc_has_been_checked = FALSE;
638 uschar *dmarc_ar_header = NULL;
639 uschar *dmarc_domain_policy = NULL;
640 uschar *dmarc_forensic_sender = NULL;
641 uschar *dmarc_history_file = NULL;
642 uschar *dmarc_status = NULL;
643 uschar *dmarc_status_text = NULL;
644 uschar *dmarc_tld_file = NULL;
645 uschar *dmarc_used_domain = NULL;
646 BOOL dmarc_disable_verify = FALSE;
647 BOOL dmarc_enable_forensic = FALSE;
648 #endif
649
650 uschar *dns_again_means_nonexist = NULL;
651 int dns_csa_search_limit = 5;
652 BOOL dns_csa_use_reverse = TRUE;
653 #ifdef EXPERIMENTAL_DANE
654 int dns_dane_ok = -1;
655 #endif
656 uschar *dns_ipv4_lookup = NULL;
657 int dns_retrans = 0;
658 int dns_retry = 0;
659 int dns_dnssec_ok = -1; /* <0 = not coerced */
660 uschar *dns_trust_aa = NULL;
661 int dns_use_edns0 = -1; /* <0 = not coerced */
662 uschar *dnslist_domain = NULL;
663 uschar *dnslist_matched = NULL;
664 uschar *dnslist_text = NULL;
665 uschar *dnslist_value = NULL;
666 tree_node *domainlist_anchor = NULL;
667 int domainlist_count = 0;
668 BOOL dont_deliver = FALSE;
669 BOOL dot_ends = TRUE;
670 BOOL drop_cr = FALSE; /* No longer used */
671 uschar *dsn_from = US DEFAULT_DSN_FROM;
672
673 BOOL enable_dollar_recipients = FALSE;
674 BOOL envelope_to_remove = TRUE;
675 int errno_quota = ERRNO_QUOTA;
676 uschar *errors_copy = NULL;
677 int error_handling = ERRORS_SENDER;
678 uschar *errors_reply_to = NULL;
679 int errors_sender_rc = EXIT_FAILURE;
680 #ifdef EXPERIMENTAL_EVENT
681 uschar *event_action = NULL; /* expansion for delivery events */
682 uschar *event_data = NULL; /* auxilary data variable for event */
683 int event_defer_errno = 0;
684 const uschar *event_name = NULL; /* event name variable */
685 #endif
686
687
688 gid_t exim_gid = EXIM_GID;
689 BOOL exim_gid_set = TRUE; /* This gid is always set */
690 uschar *exim_path = US BIN_DIRECTORY "/exim"
691 "\0<---------------Space to patch exim_path->";
692 uid_t exim_uid = EXIM_UID;
693 BOOL exim_uid_set = TRUE; /* This uid is always set */
694 int expand_forbid = 0;
695 int expand_nlength[EXPAND_MAXN+1];
696 int expand_nmax = -1;
697 uschar *expand_nstring[EXPAND_MAXN+1];
698 BOOL expand_string_forcedfail = FALSE;
699 uschar *expand_string_message;
700 BOOL extract_addresses_remove_arguments = TRUE;
701 uschar *extra_local_interfaces = NULL;
702
703 int fake_response = OK;
704 uschar *fake_response_text = US"Your message has been rejected but is "
705 "being kept for evaluation.\nIf it was a "
706 "legitimate message, it may still be "
707 "delivered to the target recipient(s).";
708 int filter_n[FILTER_VARIABLE_COUNT];
709 BOOL filter_running = FALSE;
710 int filter_sn[FILTER_VARIABLE_COUNT];
711 int filter_test = FTEST_NONE;
712 uschar *filter_test_sfile = NULL;
713 uschar *filter_test_ufile = NULL;
714 uschar *filter_thisaddress = NULL;
715 int finduser_retries = 0;
716 #ifdef WITH_OLD_DEMIME
717 uschar *found_extension = NULL;
718 #endif
719 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
720 uschar *freeze_tell = NULL;
721 uschar *freeze_tell_config = NULL;
722 uschar *fudged_queue_times = US"";
723
724 uschar *gecos_name = NULL;
725 uschar *gecos_pattern = NULL;
726 rewrite_rule *global_rewrite_rules = NULL;
727
728 uschar *headers_charset = US HEADERS_CHARSET;
729 int header_insert_maxlen = 64 * 1024;
730 header_line *header_last = NULL;
731 header_line *header_list = NULL;
732 int header_maxsize = HEADER_MAXSIZE;
733 int header_line_maxsize = 0;
734
735 header_name header_names[] = {
736 { US"bcc", 3, TRUE, htype_bcc },
737 { US"cc", 2, TRUE, htype_cc },
738 { US"date", 4, TRUE, htype_date },
739 { US"delivery-date", 13, FALSE, htype_delivery_date },
740 { US"envelope-to", 11, FALSE, htype_envelope_to },
741 { US"from", 4, TRUE, htype_from },
742 { US"message-id", 10, TRUE, htype_id },
743 { US"received", 8, FALSE, htype_received },
744 { US"reply-to", 8, FALSE, htype_reply_to },
745 { US"return-path", 11, FALSE, htype_return_path },
746 { US"sender", 6, TRUE, htype_sender },
747 { US"subject", 7, FALSE, htype_subject },
748 { US"to", 2, TRUE, htype_to }
749 };
750
751 int header_names_size = sizeof(header_names)/sizeof(header_name);
752
753 BOOL header_rewritten = FALSE;
754 uschar *helo_accept_junk_hosts = NULL;
755 uschar *helo_allow_chars = US"";
756 uschar *helo_lookup_domains = US"@ : @[]";
757 uschar *helo_try_verify_hosts = NULL;
758 BOOL helo_verified = FALSE;
759 BOOL helo_verify_failed = FALSE;
760 uschar *helo_verify_hosts = NULL;
761 const uschar *hex_digits = CUS"0123456789abcdef";
762 uschar *hold_domains = NULL;
763 BOOL host_checking = FALSE;
764 BOOL host_checking_callout = FALSE;
765 uschar *host_data = NULL;
766 BOOL host_find_failed_syntax= FALSE;
767 uschar *host_lookup = NULL;
768 BOOL host_lookup_deferred = FALSE;
769 BOOL host_lookup_failed = FALSE;
770 uschar *host_lookup_order = US"bydns:byaddr";
771 uschar *host_lookup_msg = US"";
772 int host_number = 0;
773 uschar *host_number_string = NULL;
774 uschar *host_reject_connection = NULL;
775 tree_node *hostlist_anchor = NULL;
776 int hostlist_count = 0;
777 uschar *hosts_treat_as_local = NULL;
778 uschar *hosts_connection_nolog = NULL;
779
780 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
781 BOOL ignore_fromline_local = FALSE;
782 uschar *ignore_fromline_hosts = NULL;
783 BOOL inetd_wait_mode = FALSE;
784 int inetd_wait_timeout = -1;
785 uschar *interface_address = NULL;
786 int interface_port = -1;
787 BOOL is_inetd = FALSE;
788 uschar *iterate_item = NULL;
789
790 int journal_fd = -1;
791
792 int keep_malformed = 4*24*60*60; /* 4 days */
793
794 uschar *eldap_dn = NULL;
795 int load_average = -2;
796 BOOL local_error_message = FALSE;
797 BOOL local_from_check = TRUE;
798 uschar *local_from_prefix = NULL;
799 uschar *local_from_suffix = NULL;
800
801 #if HAVE_IPV6
802 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
803 #else
804 uschar *local_interfaces = US"0.0.0.0";
805 #endif
806
807 uschar *local_scan_data = NULL;
808 int local_scan_timeout = 5*60;
809 BOOL local_sender_retain = FALSE;
810 gid_t local_user_gid = (gid_t)(-1);
811 uid_t local_user_uid = (uid_t)(-1);
812
813 tree_node *localpartlist_anchor= NULL;
814 int localpartlist_count = 0;
815 uschar *log_buffer = NULL;
816 unsigned int log_extra_selector = LX_default;
817 uschar *log_file_path = US LOG_FILE_PATH
818 "\0<--------------Space to patch log_file_path->";
819
820 /* Those log options with L_xxx identifiers have values less than 0x800000 and
821 are the ones that get put into log_write_selector. They can be used in calls to
822 log_write() to test for the bit. The options with LX_xxx identifiers have
823 values greater than 0x80000000 and are put into log_extra_selector (without the
824 top bit). They are never used in calls to log_write(), but are tested
825 independently. This separation became necessary when the number of log
826 selectors was getting close to filling a 32-bit word. */
827
828 /* Note that this list must be in alphabetical order. */
829
830 bit_table log_options[] = {
831 { US"8bitmime", LX_8bitmime },
832 { US"acl_warn_skipped", LX_acl_warn_skipped },
833 { US"address_rewrite", L_address_rewrite },
834 { US"all", L_all },
835 { US"all_parents", L_all_parents },
836 { US"arguments", LX_arguments },
837 { US"connection_reject", L_connection_reject },
838 { US"delay_delivery", L_delay_delivery },
839 { US"deliver_time", LX_deliver_time },
840 { US"delivery_size", LX_delivery_size },
841 { US"dnslist_defer", L_dnslist_defer },
842 { US"etrn", L_etrn },
843 { US"host_lookup_failed", L_host_lookup_failed },
844 { US"ident_timeout", LX_ident_timeout },
845 { US"incoming_interface", LX_incoming_interface },
846 { US"incoming_port", LX_incoming_port },
847 { US"lost_incoming_connection", L_lost_incoming_connection },
848 { US"outgoing_port", LX_outgoing_port },
849 { US"pid", LX_pid },
850 #ifdef EXPERIMENTAL_PROXY
851 { US"proxy", LX_proxy },
852 #endif
853 { US"queue_run", L_queue_run },
854 { US"queue_time", LX_queue_time },
855 { US"queue_time_overall", LX_queue_time_overall },
856 { US"received_recipients", LX_received_recipients },
857 { US"received_sender", LX_received_sender },
858 { US"rejected_header", LX_rejected_header },
859 { US"rejected_headers", LX_rejected_header },
860 { US"retry_defer", L_retry_defer },
861 { US"return_path_on_delivery", LX_return_path_on_delivery },
862 { US"sender_on_delivery", LX_sender_on_delivery },
863 { US"sender_verify_fail", LX_sender_verify_fail },
864 { US"size_reject", L_size_reject },
865 { US"skip_delivery", L_skip_delivery },
866 { US"smtp_confirmation", LX_smtp_confirmation },
867 { US"smtp_connection", L_smtp_connection },
868 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
869 { US"smtp_mailauth", LX_smtp_mailauth },
870 { US"smtp_no_mail", LX_smtp_no_mail },
871 { US"smtp_protocol_error", L_smtp_protocol_error },
872 { US"smtp_syntax_error", L_smtp_syntax_error },
873 { US"subject", LX_subject },
874 { US"tls_certificate_verified", LX_tls_certificate_verified },
875 { US"tls_cipher", LX_tls_cipher },
876 { US"tls_peerdn", LX_tls_peerdn },
877 { US"tls_sni", LX_tls_sni },
878 { US"unknown_in_list", LX_unknown_in_list }
879 };
880
881 int log_options_count = sizeof(log_options)/sizeof(bit_table);
882 int log_reject_target = 0;
883 uschar *log_selector_string = NULL;
884 FILE *log_stderr = NULL;
885 BOOL log_testing_mode = FALSE;
886 BOOL log_timezone = FALSE;
887 unsigned int log_write_selector= L_default;
888 uschar *login_sender_address = NULL;
889 uschar *lookup_dnssec_authenticated = NULL;
890 int lookup_open_max = 25;
891 uschar *lookup_value = NULL;
892
893 macro_item *macros = NULL;
894 uschar *mailstore_basename = NULL;
895 #ifdef WITH_CONTENT_SCAN
896 uschar *malware_name = NULL; /* Virus Name */
897 #endif
898 int max_received_linelength= 0;
899 int max_username_length = 0;
900 int message_age = 0;
901 uschar *message_body = NULL;
902 uschar *message_body_end = NULL;
903 BOOL message_body_newlines = FALSE;
904 int message_body_size = 0;
905 int message_body_visible = 500;
906 int message_ended = END_NOTSTARTED;
907 uschar *message_headers = NULL;
908 uschar *message_id;
909 uschar *message_id_domain = NULL;
910 uschar *message_id_text = NULL;
911 struct timeval message_id_tv = { 0, 0 };
912 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
913 uschar *message_id_external;
914 int message_linecount = 0;
915 BOOL message_logs = TRUE;
916 int message_size = 0;
917 uschar *message_size_limit = US"50M";
918 #ifdef EXPERIMENTAL_INTERNATIONAL
919 BOOL message_smtputf8 = FALSE;
920 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
921 #endif
922 uschar message_subdir[2] = { 0, 0 };
923 uschar *message_reference = NULL;
924
925 /* MIME ACL expandables */
926 #ifdef WITH_CONTENT_SCAN
927 int mime_anomaly_level = 0;
928 const uschar *mime_anomaly_text = NULL;
929 uschar *mime_boundary = NULL;
930 uschar *mime_charset = NULL;
931 uschar *mime_content_description = NULL;
932 uschar *mime_content_disposition = NULL;
933 uschar *mime_content_id = NULL;
934 unsigned int mime_content_size = 0;
935 uschar *mime_content_transfer_encoding = NULL;
936 uschar *mime_content_type = NULL;
937 uschar *mime_decoded_filename = NULL;
938 uschar *mime_filename = NULL;
939 int mime_is_multipart = 0;
940 int mime_is_coverletter = 0;
941 int mime_is_rfc822 = 0;
942 int mime_part_count = -1;
943 #endif
944
945 BOOL mua_wrapper = FALSE;
946
947 uid_t *never_users = NULL;
948 #ifdef WITH_CONTENT_SCAN
949 BOOL no_mbox_unspool = FALSE;
950 #endif
951 BOOL no_multiline_responses = FALSE;
952
953 uid_t original_euid;
954 gid_t originator_gid;
955 uschar *originator_login = NULL;
956 uschar *originator_name = NULL;
957 uid_t originator_uid;
958 uschar *override_local_interfaces = NULL;
959 uschar *override_pid_file_path = NULL;
960
961 BOOL parse_allow_group = FALSE;
962 BOOL parse_found_group = FALSE;
963 uschar *percent_hack_domains = NULL;
964 uschar *pid_file_path = US PID_FILE_PATH
965 "\0<--------------Space to patch pid_file_path->";
966 BOOL pipelining_enable = TRUE;
967 uschar *pipelining_advertise_hosts = US"*";
968 BOOL preserve_message_logs = FALSE;
969 uschar *primary_hostname = NULL;
970 BOOL print_topbitchars = FALSE;
971 uschar process_info[PROCESS_INFO_SIZE];
972 int process_info_len = 0;
973 uschar *process_log_path = NULL;
974 BOOL prod_requires_admin = TRUE;
975
976 #ifdef EXPERIMENTAL_PROXY
977 uschar *proxy_host_address = US"";
978 int proxy_host_port = 0;
979 uschar *proxy_required_hosts = US"";
980 BOOL proxy_session = FALSE;
981 BOOL proxy_session_failed = FALSE;
982 uschar *proxy_target_address = US"";
983 int proxy_target_port = 0;
984 #endif
985
986 uschar *prvscheck_address = NULL;
987 uschar *prvscheck_keynum = NULL;
988 uschar *prvscheck_result = NULL;
989
990
991 const uschar *qualify_domain_recipient = NULL;
992 uschar *qualify_domain_sender = NULL;
993 BOOL queue_2stage = FALSE;
994 uschar *queue_domains = NULL;
995 int queue_interval = -1;
996 BOOL queue_list_requires_admin = TRUE;
997 BOOL queue_only = FALSE;
998 uschar *queue_only_file = NULL;
999 int queue_only_load = -1;
1000 BOOL queue_only_load_latch = TRUE;
1001 BOOL queue_only_override = TRUE;
1002 BOOL queue_only_policy = FALSE;
1003 BOOL queue_run_first_delivery = FALSE;
1004 BOOL queue_run_force = FALSE;
1005 BOOL queue_run_in_order = FALSE;
1006 BOOL queue_run_local = FALSE;
1007 int queue_run_max = 5;
1008 pid_t queue_run_pid = (pid_t)0;
1009 int queue_run_pipe = -1;
1010 BOOL queue_running = FALSE;
1011 BOOL queue_smtp = FALSE;
1012 uschar *queue_smtp_domains = NULL;
1013
1014 unsigned int random_seed = 0;
1015 tree_node *ratelimiters_cmd = NULL;
1016 tree_node *ratelimiters_conn = NULL;
1017 tree_node *ratelimiters_mail = NULL;
1018 uschar *raw_active_hostname = NULL;
1019 uschar *raw_sender = NULL;
1020 uschar **raw_recipients = NULL;
1021 int raw_recipients_count = 0;
1022
1023 int rcpt_count = 0;
1024 int rcpt_fail_count = 0;
1025 int rcpt_defer_count = 0;
1026 gid_t real_gid;
1027 uid_t real_uid;
1028 BOOL really_exim = TRUE;
1029 BOOL receive_call_bombout = FALSE;
1030 int receive_linecount = 0;
1031 int receive_messagecount = 0;
1032 int receive_timeout = 0;
1033 int received_count = 0;
1034 uschar *received_for = NULL;
1035
1036 /* This is the default text for Received headers generated by Exim. The
1037 date will be automatically added on the end. */
1038
1039 uschar *received_header_text = US
1040 "Received: "
1041 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1042 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1043 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1044 "by $primary_hostname "
1045 "${if def:received_protocol {with $received_protocol}} "
1046 #ifdef SUPPORT_TLS
1047 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1048 #endif
1049 "(Exim $version_number)\n\t"
1050 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1051 "id $message_exim_id"
1052 "${if def:received_for {\n\tfor $received_for}}"
1053 "\0<---------------Space to patch received_header_text->";
1054
1055 int received_headers_max = 30;
1056 uschar *received_protocol = NULL;
1057 int received_time = 0;
1058 uschar *recipient_data = NULL;
1059 uschar *recipient_unqualified_hosts = NULL;
1060 uschar *recipient_verify_failure = NULL;
1061 int recipients_count = 0;
1062 BOOL recipients_discarded = FALSE;
1063 recipient_item *recipients_list = NULL;
1064 int recipients_list_max = 0;
1065 int recipients_max = 0;
1066 BOOL recipients_max_reject = FALSE;
1067 const pcre *regex_AUTH = NULL;
1068 const pcre *regex_check_dns_names = NULL;
1069 const pcre *regex_From = NULL;
1070 const pcre *regex_IGNOREQUOTA = NULL;
1071 const pcre *regex_PIPELINING = NULL;
1072 const pcre *regex_SIZE = NULL;
1073 const pcre *regex_smtp_code = NULL;
1074 const pcre *regex_ismsgid = NULL;
1075 #ifdef WHITELIST_D_MACROS
1076 const pcre *regex_whitelisted_macro = NULL;
1077 #endif
1078 #ifdef WITH_CONTENT_SCAN
1079 uschar *regex_match_string = NULL;
1080 #endif
1081 int remote_delivery_count = 0;
1082 int remote_max_parallel = 2;
1083 uschar *remote_sort_domains = NULL;
1084 int retry_data_expire = 7*24*60*60;
1085 int retry_interval_max = 24*60*60;
1086 int retry_maximum_timeout = 0; /* set from retry config */
1087 retry_config *retries = NULL;
1088 uschar *return_path = NULL;
1089 BOOL return_path_remove = TRUE;
1090 int rewrite_existflags = 0;
1091 uschar *rfc1413_hosts = US"@[]";
1092 int rfc1413_query_timeout = 0;
1093 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1094 uid_t root_gid = ROOT_GID;
1095 uid_t root_uid = ROOT_UID;
1096
1097 router_instance *routers = NULL;
1098 router_instance router_defaults = {
1099 NULL, /* chain pointer */
1100 NULL, /* name */
1101 NULL, /* info */
1102 NULL, /* private options block pointer */
1103 NULL, /* driver name */
1104
1105 NULL, /* address_data */
1106 #ifdef EXPERIMENTAL_BRIGHTMAIL
1107 NULL, /* bmi_rule */
1108 #endif
1109 NULL, /* cannot_route_message */
1110 NULL, /* condition */
1111 NULL, /* current_directory */
1112 NULL, /* debug_string */
1113 NULL, /* domains */
1114 NULL, /* errors_to */
1115 NULL, /* expand_gid */
1116 NULL, /* expand_uid */
1117 NULL, /* expand_more */
1118 NULL, /* expand_unseen */
1119 NULL, /* extra_headers */
1120 NULL, /* fallback_hosts */
1121 NULL, /* home_directory */
1122 NULL, /* ignore_target_hosts */
1123 NULL, /* local_parts */
1124 NULL, /* pass_router_name */
1125 NULL, /* prefix */
1126 NULL, /* redirect_router_name */
1127 NULL, /* remove_headers */
1128 NULL, /* require_files */
1129 NULL, /* router_home_directory */
1130 US"freeze", /* self */
1131 NULL, /* senders */
1132 NULL, /* suffix */
1133 NULL, /* translate_ip_address */
1134 NULL, /* transport_name */
1135
1136 TRUE, /* address_test */
1137 #ifdef EXPERIMENTAL_BRIGHTMAIL
1138 FALSE, /* bmi_deliver_alternate */
1139 FALSE, /* bmi_deliver_default */
1140 FALSE, /* bmi_dont_deliver */
1141 #endif
1142 TRUE, /* expn */
1143 FALSE, /* caseful_local_part */
1144 FALSE, /* check_local_user */
1145 FALSE, /* disable_logging */
1146 FALSE, /* fail_verify_recipient */
1147 FALSE, /* fail_verify_sender */
1148 FALSE, /* gid_set */
1149 FALSE, /* initgroups */
1150 TRUE_UNSET, /* log_as_local */
1151 TRUE, /* more */
1152 FALSE, /* pass_on_timeout */
1153 FALSE, /* prefix_optional */
1154 TRUE, /* repeat_use */
1155 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1156 FALSE, /* same_domain_copy_routing */
1157 FALSE, /* self_rewrite */
1158 FALSE, /* suffix_optional */
1159 FALSE, /* verify_only */
1160 TRUE, /* verify_recipient */
1161 TRUE, /* verify_sender */
1162 FALSE, /* uid_set */
1163 FALSE, /* unseen */
1164 FALSE, /* dsn_lasthop */
1165
1166 self_freeze, /* self_code */
1167 (uid_t)(-1), /* uid */
1168 (gid_t)(-1), /* gid */
1169
1170 NULL, /* fallback_hostlist */
1171 NULL, /* transport instance */
1172 NULL, /* pass_router */
1173 NULL, /* redirect_router */
1174
1175 { NULL, NULL }, /* dnssec_domains {require,request} */
1176 };
1177
1178 uschar *router_name = NULL;
1179
1180 ip_address_item *running_interfaces = NULL;
1181 BOOL running_in_test_harness = FALSE;
1182
1183 /* This is a weird one. The following string gets patched in the binary by the
1184 script that sets up a copy of Exim for running in the test harness. It seems
1185 that compilers are now clever, and share constant strings if they can.
1186 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1187 make use of the end of this string in order to save space. So the patching then
1188 wrecks this. We defeat this optimization by adding some additional characters
1189 onto the end of the string. */
1190
1191 uschar *running_status = US">>>running<<<" "\0EXTRA";
1192
1193 int runrc = 0;
1194
1195 uschar *search_error_message = NULL;
1196 BOOL search_find_defer = FALSE;
1197 uschar *self_hostname = NULL;
1198 uschar *sender_address = NULL;
1199 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1200 uschar *sender_address_data = NULL;
1201 BOOL sender_address_forced = FALSE;
1202 uschar *sender_address_unrewritten = NULL;
1203 uschar *sender_data = NULL;
1204 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1205 uschar *sender_fullhost = NULL;
1206 BOOL sender_helo_dnssec = FALSE;
1207 uschar *sender_helo_name = NULL;
1208 uschar **sender_host_aliases = &no_aliases;
1209 uschar *sender_host_address = NULL;
1210 uschar *sender_host_authenticated = NULL;
1211 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1212 BOOL sender_host_dnssec = FALSE;
1213 uschar *sender_host_name = NULL;
1214 int sender_host_port = 0;
1215 BOOL sender_host_notsocket = FALSE;
1216 BOOL sender_host_unknown = FALSE;
1217 uschar *sender_ident = NULL;
1218 BOOL sender_local = FALSE;
1219 BOOL sender_name_forced = FALSE;
1220 uschar *sender_rate = NULL;
1221 uschar *sender_rate_limit = NULL;
1222 uschar *sender_rate_period = NULL;
1223 uschar *sender_rcvhost = NULL;
1224 BOOL sender_set_untrusted = FALSE;
1225 uschar *sender_unqualified_hosts = NULL;
1226 uschar *sender_verify_failure = NULL;
1227 address_item *sender_verified_list = NULL;
1228 address_item *sender_verified_failed = NULL;
1229 int sender_verified_rc = -1;
1230 BOOL sender_verified_responded = FALSE;
1231 uschar *sending_ip_address = NULL;
1232 int sending_port = -1;
1233 SIGNAL_BOOL sigalrm_seen = FALSE;
1234 uschar **sighup_argv = NULL;
1235 int slow_lookup_log = 0; /* millisecs, zero disables */
1236 int smtp_accept_count = 0;
1237 BOOL smtp_accept_keepalive = TRUE;
1238 int smtp_accept_max = 20;
1239 int smtp_accept_max_nonmail= 10;
1240 uschar *smtp_accept_max_nonmail_hosts = US"*";
1241 int smtp_accept_max_per_connection = 1000;
1242 uschar *smtp_accept_max_per_host = NULL;
1243 int smtp_accept_queue = 0;
1244 int smtp_accept_queue_per_connection = 10;
1245 int smtp_accept_reserve = 0;
1246 uschar *smtp_active_hostname = NULL;
1247 BOOL smtp_authenticated = FALSE;
1248 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1249 "Exim $version_number $tod_full"
1250 "\0<---------------Space to patch smtp_banner->";
1251 BOOL smtp_batched_input = FALSE;
1252 BOOL smtp_check_spool_space = TRUE;
1253 int smtp_ch_index = 0;
1254 uschar *smtp_cmd_argument = NULL;
1255 uschar *smtp_cmd_buffer = NULL;
1256 time_t smtp_connection_start = 0;
1257 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1258 int smtp_connect_backlog = 20;
1259 double smtp_delay_mail = 0.0;
1260 double smtp_delay_rcpt = 0.0;
1261 BOOL smtp_enforce_sync = TRUE;
1262 FILE *smtp_in = NULL;
1263 BOOL smtp_input = FALSE;
1264 int smtp_load_reserve = -1;
1265 int smtp_mailcmd_count = 0;
1266 FILE *smtp_out = NULL;
1267 uschar *smtp_etrn_command = NULL;
1268 BOOL smtp_etrn_serialize = TRUE;
1269 int smtp_max_synprot_errors= 3;
1270 int smtp_max_unknown_commands = 3;
1271 uschar *smtp_notquit_reason = NULL;
1272 uschar *smtp_ratelimit_hosts = NULL;
1273 uschar *smtp_ratelimit_mail = NULL;
1274 uschar *smtp_ratelimit_rcpt = NULL;
1275 uschar *smtp_read_error = US"";
1276 int smtp_receive_timeout = 5*60;
1277 uschar *smtp_receive_timeout_s = NULL;
1278 uschar *smtp_reserve_hosts = NULL;
1279 BOOL smtp_return_error_details = FALSE;
1280 int smtp_rlm_base = 0;
1281 double smtp_rlm_factor = 0.0;
1282 int smtp_rlm_limit = 0;
1283 int smtp_rlm_threshold = INT_MAX;
1284 int smtp_rlr_base = 0;
1285 double smtp_rlr_factor = 0.0;
1286 int smtp_rlr_limit = 0;
1287 int smtp_rlr_threshold = INT_MAX;
1288 BOOL smtp_use_pipelining = FALSE;
1289 BOOL smtp_use_size = FALSE;
1290 #ifdef EXPERIMENTAL_INTERNATIONAL
1291 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1292 #endif
1293
1294 #ifdef WITH_CONTENT_SCAN
1295 uschar *spamd_address = US"127.0.0.1 783";
1296 uschar *spam_bar = NULL;
1297 uschar *spam_report = NULL;
1298 uschar *spam_action = NULL;
1299 uschar *spam_score = NULL;
1300 uschar *spam_score_int = NULL;
1301 #endif
1302 #ifdef EXPERIMENTAL_SPF
1303 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1304 uschar *spf_header_comment = NULL;
1305 uschar *spf_received = NULL;
1306 uschar *spf_result = NULL;
1307 uschar *spf_smtp_comment = NULL;
1308 #endif
1309
1310 BOOL split_spool_directory = FALSE;
1311 uschar *spool_directory = US SPOOL_DIRECTORY
1312 "\0<--------------Space to patch spool_directory->";
1313 #ifdef EXPERIMENTAL_SRS
1314 uschar *srs_config = NULL;
1315 uschar *srs_db_address = NULL;
1316 uschar *srs_db_key = NULL;
1317 int srs_hashlength = 6;
1318 int srs_hashmin = -1;
1319 int srs_maxage = 31;
1320 uschar *srs_orig_recipient = NULL;
1321 uschar *srs_orig_sender = NULL;
1322 uschar *srs_recipient = NULL;
1323 uschar *srs_secrets = NULL;
1324 uschar *srs_status = NULL;
1325 BOOL srs_usehash = TRUE;
1326 BOOL srs_usetimestamp = TRUE;
1327 #endif
1328 BOOL strict_acl_vars = FALSE;
1329 int string_datestamp_offset= -1;
1330 int string_datestamp_length= 0;
1331 int string_datestamp_type = -1;
1332 BOOL strip_excess_angle_brackets = FALSE;
1333 BOOL strip_trailing_dot = FALSE;
1334 uschar *submission_domain = NULL;
1335 BOOL submission_mode = FALSE;
1336 uschar *submission_name = NULL;
1337 BOOL suppress_local_fixups = FALSE;
1338 BOOL suppress_local_fixups_default = FALSE;
1339 BOOL synchronous_delivery = FALSE;
1340 BOOL syslog_duplication = TRUE;
1341 int syslog_facility = LOG_MAIL;
1342 uschar *syslog_processname = US"exim";
1343 BOOL syslog_timestamp = TRUE;
1344 uschar *system_filter = NULL;
1345
1346 uschar *system_filter_directory_transport = NULL;
1347 uschar *system_filter_file_transport = NULL;
1348 uschar *system_filter_pipe_transport = NULL;
1349 uschar *system_filter_reply_transport = NULL;
1350
1351 gid_t system_filter_gid = 0;
1352 BOOL system_filter_gid_set = FALSE;
1353 uid_t system_filter_uid = (uid_t)-1;
1354 BOOL system_filter_uid_set = FALSE;
1355 BOOL system_filtering = FALSE;
1356
1357 BOOL tcp_nodelay = TRUE;
1358 #ifdef USE_TCP_WRAPPERS
1359 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1360 #endif
1361 int test_harness_load_avg = 0;
1362 int thismessage_size_limit = 0;
1363 int timeout_frozen_after = 0;
1364 BOOL timestamps_utc = FALSE;
1365
1366 transport_instance *transports = NULL;
1367
1368 transport_instance transport_defaults = {
1369 NULL, /* chain pointer */
1370 NULL, /* name */
1371 NULL, /* info */
1372 NULL, /* private options block pointer */
1373 NULL, /* driver name */
1374 NULL, /* setup entry point */
1375 1, /* batch_max */
1376 NULL, /* batch_id */
1377 NULL, /* home_dir */
1378 NULL, /* current_dir */
1379 NULL, /* expand-multi-domain */
1380 TRUE, /* multi-domain */
1381 FALSE, /* overrides_hosts */
1382 100, /* max_addresses */
1383 500, /* connection_max_messages */
1384 FALSE, /* deliver_as_creator */
1385 FALSE, /* disable_logging */
1386 FALSE, /* initgroups */
1387 FALSE, /* uid_set */
1388 FALSE, /* gid_set */
1389 (uid_t)(-1), /* uid */
1390 (gid_t)(-1), /* gid */
1391 NULL, /* expand_uid */
1392 NULL, /* expand_gid */
1393 NULL, /* warn_message */
1394 NULL, /* shadow */
1395 NULL, /* shadow_condition */
1396 NULL, /* filter_command */
1397 NULL, /* add_headers */
1398 NULL, /* remove_headers */
1399 NULL, /* return_path */
1400 NULL, /* debug_string */
1401 NULL, /* message_size_limit */
1402 NULL, /* headers_rewrite */
1403 NULL, /* rewrite_rules */
1404 0, /* rewrite_existflags */
1405 300, /* filter_timeout */
1406 FALSE, /* body_only */
1407 FALSE, /* delivery_date_add */
1408 FALSE, /* envelope_to_add */
1409 FALSE, /* headers_only */
1410 FALSE, /* rcpt_include_affixes */
1411 FALSE, /* return_path_add */
1412 FALSE, /* return_output */
1413 FALSE, /* return_fail_output */
1414 FALSE, /* log_output */
1415 FALSE, /* log_fail_output */
1416 FALSE, /* log_defer_output */
1417 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1418 1 nor 0 so can detect unset */
1419 #ifdef EXPERIMENTAL_EVENT
1420 ,NULL /* event_action */
1421 #endif
1422 };
1423
1424 int transport_count;
1425 uschar *transport_name = NULL;
1426 int transport_newlines;
1427 const uschar **transport_filter_argv = NULL;
1428 int transport_filter_timeout;
1429 BOOL transport_filter_timed_out = FALSE;
1430 int transport_write_timeout= 0;
1431
1432 tree_node *tree_dns_fails = NULL;
1433 tree_node *tree_duplicates = NULL;
1434 tree_node *tree_nonrecipients = NULL;
1435 tree_node *tree_unusable = NULL;
1436
1437 BOOL trusted_caller = FALSE;
1438 BOOL trusted_config = TRUE;
1439 gid_t *trusted_groups = NULL;
1440 uid_t *trusted_users = NULL;
1441 uschar *timezone_string = US TIMEZONE_DEFAULT;
1442
1443 uschar *unknown_login = NULL;
1444 uschar *unknown_username = NULL;
1445 uschar *untrusted_set_sender = NULL;
1446
1447 /* A regex for matching a "From_" line in an incoming message, in the form
1448
1449 From ph10 Fri Jan 5 12:35 GMT 1996
1450
1451 which the "mail" commands send to the MTA (undocumented, of course), or in
1452 the form
1453
1454 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1455
1456 which is apparently used by some UUCPs, despite it not being in RFC 976.
1457 Because of variations in time formats, just match up to the minutes. That
1458 should be sufficient. Examples have been seen of time fields like 12:1:03,
1459 so just require one digit for hours and minutes. The weekday is also absent
1460 in some forms. */
1461
1462 uschar *uucp_from_pattern = US
1463 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1464 "(?:" /* Non-extracting bracket */
1465 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1466 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1467 ")" /* End alternation */
1468 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1469
1470 uschar *uucp_from_sender = US"$1";
1471
1472 uschar *verify_mode = NULL;
1473 uschar *version_copyright =
1474 US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1475 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1476 uschar *version_date = US"?";
1477 uschar *version_cnumber = US"????";
1478 uschar *version_string = US"?";
1479
1480 uschar *warn_message_file = NULL;
1481 int warning_count = 0;
1482 uschar *warnmsg_delay = NULL;
1483 uschar *warnmsg_recipients = NULL;
1484 BOOL write_rejectlog = TRUE;
1485
1486
1487 /* End of globals.c */
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