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[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 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
196 CUSS &deliver_address_data,
197 CUSS &deliver_domain,
198 CUSS &deliver_domain_data,
199 CUSS &deliver_domain_orig,
200 CUSS &deliver_domain_parent,
201 CUSS &deliver_localpart,
202 CUSS &deliver_localpart_data,
203 CUSS &deliver_localpart_orig,
204 CUSS &deliver_localpart_parent,
205 CUSS &deliver_localpart_prefix,
206 CUSS &deliver_localpart_suffix,
207 CUSS (uschar **)(&deliver_recipients),
208 CUSS &deliver_host,
209 CUSS &deliver_home,
210 CUSS &address_file,
211 CUSS &address_pipe,
212 CUSS &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 cut_t cutthrough = {
510 FALSE, /* delivery: when to attempt */
511 -1, /* fd: open connection */
512 0, /* nrcpt: number of addresses */
513 };
514
515 BOOL daemon_listen = FALSE;
516 uschar *daemon_smtp_port = US"smtp";
517 int daemon_startup_retries = 9;
518 int daemon_startup_sleep = 30;
519
520 #ifdef EXPERIMENTAL_DCC
521 BOOL dcc_direct_add_header = FALSE;
522 uschar *dcc_header = NULL;
523 uschar *dcc_result = NULL;
524 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
525 uschar *dccifd_options = US"header";
526 #endif
527
528 BOOL debug_daemon = FALSE;
529 int debug_fd = -1;
530 FILE *debug_file = NULL;
531 bit_table debug_options[] = {
532 { US"acl", D_acl },
533 { US"all", D_all },
534 { US"auth", D_auth },
535 { US"deliver", D_deliver },
536 { US"dns", D_dns },
537 { US"dnsbl", D_dnsbl },
538 { US"exec", D_exec },
539 { US"expand", D_expand },
540 { US"filter", D_filter },
541 { US"hints_lookup", D_hints_lookup },
542 { US"host_lookup", D_host_lookup },
543 { US"ident", D_ident },
544 { US"interface", D_interface },
545 { US"lists", D_lists },
546 { US"load", D_load },
547 { US"local_scan", D_local_scan },
548 { US"lookup", D_lookup },
549 { US"memory", D_memory },
550 { US"pid", D_pid },
551 { US"process_info", D_process_info },
552 { US"queue_run", D_queue_run },
553 { US"receive", D_receive },
554 { US"resolver", D_resolver },
555 { US"retry", D_retry },
556 { US"rewrite", D_rewrite },
557 { US"route", D_route },
558 { US"timestamp", D_timestamp },
559 { US"tls", D_tls },
560 { US"transport", D_transport },
561 { US"uid", D_uid },
562 { US"verify", D_verify }
563 };
564 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
565 unsigned int debug_selector = 0;
566 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
567 uschar *delay_warning_condition=
568 US"${if or {"
569 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
570 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
571 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
572 "} {no}{yes}}";
573 BOOL delivery_date_remove = TRUE;
574 uschar *deliver_address_data = NULL;
575 int deliver_datafile = -1;
576 const uschar *deliver_domain = NULL;
577 uschar *deliver_domain_data = NULL;
578 const uschar *deliver_domain_orig = NULL;
579 const uschar *deliver_domain_parent = NULL;
580 BOOL deliver_drop_privilege = FALSE;
581 BOOL deliver_firsttime = FALSE;
582 BOOL deliver_force = FALSE;
583 BOOL deliver_freeze = FALSE;
584 time_t deliver_frozen_at = 0;
585 uschar *deliver_home = NULL;
586 const uschar *deliver_host = NULL;
587 const uschar *deliver_host_address = NULL;
588 int deliver_host_port = 0;
589 uschar *deliver_in_buffer = NULL;
590 ino_t deliver_inode = 0;
591 uschar *deliver_localpart = NULL;
592 uschar *deliver_localpart_data = NULL;
593 uschar *deliver_localpart_orig = NULL;
594 uschar *deliver_localpart_parent = NULL;
595 uschar *deliver_localpart_prefix = NULL;
596 uschar *deliver_localpart_suffix = NULL;
597 BOOL deliver_force_thaw = FALSE;
598 BOOL deliver_manual_thaw = FALSE;
599 uschar *deliver_out_buffer = NULL;
600 int deliver_queue_load_max = -1;
601 address_item *deliver_recipients = NULL;
602 uschar *deliver_selectstring = NULL;
603 BOOL deliver_selectstring_regex = FALSE;
604 uschar *deliver_selectstring_sender = NULL;
605 BOOL deliver_selectstring_sender_regex = FALSE;
606 #ifdef WITH_OLD_DEMIME
607 int demime_errorlevel = 0;
608 int demime_ok = 0;
609 uschar *demime_reason = NULL;
610 #endif
611 BOOL disable_callout_flush = FALSE;
612 BOOL disable_delay_flush = FALSE;
613 #ifdef ENABLE_DISABLE_FSYNC
614 BOOL disable_fsync = FALSE;
615 #endif
616 BOOL disable_ipv6 = FALSE;
617 BOOL disable_logging = FALSE;
618
619 #ifndef DISABLE_DKIM
620 uschar *dkim_cur_signer = NULL;
621 uschar *dkim_signers = NULL;
622 uschar *dkim_signing_domain = NULL;
623 uschar *dkim_signing_selector = NULL;
624 uschar *dkim_verify_signers = US"$dkim_signers";
625 BOOL dkim_collect_input = FALSE;
626 BOOL dkim_disable_verify = FALSE;
627 #endif
628 #ifdef EXPERIMENTAL_DMARC
629 BOOL dmarc_has_been_checked = FALSE;
630 uschar *dmarc_ar_header = NULL;
631 uschar *dmarc_domain_policy = NULL;
632 uschar *dmarc_forensic_sender = NULL;
633 uschar *dmarc_history_file = NULL;
634 uschar *dmarc_status = NULL;
635 uschar *dmarc_status_text = NULL;
636 uschar *dmarc_tld_file = NULL;
637 uschar *dmarc_used_domain = NULL;
638 BOOL dmarc_disable_verify = FALSE;
639 BOOL dmarc_enable_forensic = FALSE;
640 #endif
641
642 uschar *dns_again_means_nonexist = NULL;
643 int dns_csa_search_limit = 5;
644 BOOL dns_csa_use_reverse = TRUE;
645 #ifdef EXPERIMENTAL_DANE
646 int dns_dane_ok = -1;
647 #endif
648 uschar *dns_ipv4_lookup = NULL;
649 int dns_retrans = 0;
650 int dns_retry = 0;
651 int dns_dnssec_ok = -1; /* <0 = not coerced */
652 int dns_use_edns0 = -1; /* <0 = not coerced */
653 uschar *dnslist_domain = NULL;
654 uschar *dnslist_matched = NULL;
655 uschar *dnslist_text = NULL;
656 uschar *dnslist_value = NULL;
657 tree_node *domainlist_anchor = NULL;
658 int domainlist_count = 0;
659 BOOL dont_deliver = FALSE;
660 BOOL dot_ends = TRUE;
661 BOOL drop_cr = FALSE; /* No longer used */
662 uschar *dsn_from = US DEFAULT_DSN_FROM;
663
664 BOOL enable_dollar_recipients = FALSE;
665 BOOL envelope_to_remove = TRUE;
666 int errno_quota = ERRNO_QUOTA;
667 uschar *errors_copy = NULL;
668 int error_handling = ERRORS_SENDER;
669 uschar *errors_reply_to = NULL;
670 int errors_sender_rc = EXIT_FAILURE;
671 #ifdef EXPERIMENTAL_EVENT
672 uschar *event_action = NULL; /* expansion for delivery events */
673 uschar *event_data = NULL; /* auxilary data variable for event */
674 int event_defer_errno = 0;
675 const uschar *event_name = NULL; /* event name variable */
676 #endif
677
678
679 gid_t exim_gid = EXIM_GID;
680 BOOL exim_gid_set = TRUE; /* This gid is always set */
681 uschar *exim_path = US BIN_DIRECTORY "/exim"
682 "\0<---------------Space to patch exim_path->";
683 uid_t exim_uid = EXIM_UID;
684 BOOL exim_uid_set = TRUE; /* This uid is always set */
685 int expand_forbid = 0;
686 int expand_nlength[EXPAND_MAXN+1];
687 int expand_nmax = -1;
688 uschar *expand_nstring[EXPAND_MAXN+1];
689 BOOL expand_string_forcedfail = FALSE;
690 uschar *expand_string_message;
691 BOOL extract_addresses_remove_arguments = TRUE;
692 uschar *extra_local_interfaces = NULL;
693
694 int fake_response = OK;
695 uschar *fake_response_text = US"Your message has been rejected but is "
696 "being kept for evaluation.\nIf it was a "
697 "legitimate message, it may still be "
698 "delivered to the target recipient(s).";
699 int filter_n[FILTER_VARIABLE_COUNT];
700 BOOL filter_running = FALSE;
701 int filter_sn[FILTER_VARIABLE_COUNT];
702 int filter_test = FTEST_NONE;
703 uschar *filter_test_sfile = NULL;
704 uschar *filter_test_ufile = NULL;
705 uschar *filter_thisaddress = NULL;
706 int finduser_retries = 0;
707 #ifdef WITH_OLD_DEMIME
708 uschar *found_extension = NULL;
709 #endif
710 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
711 uschar *freeze_tell = NULL;
712 uschar *freeze_tell_config = NULL;
713 uschar *fudged_queue_times = US"";
714
715 uschar *gecos_name = NULL;
716 uschar *gecos_pattern = NULL;
717 rewrite_rule *global_rewrite_rules = NULL;
718
719 uschar *headers_charset = US HEADERS_CHARSET;
720 int header_insert_maxlen = 64 * 1024;
721 header_line *header_last = NULL;
722 header_line *header_list = NULL;
723 int header_maxsize = HEADER_MAXSIZE;
724 int header_line_maxsize = 0;
725
726 header_name header_names[] = {
727 { US"bcc", 3, TRUE, htype_bcc },
728 { US"cc", 2, TRUE, htype_cc },
729 { US"date", 4, TRUE, htype_date },
730 { US"delivery-date", 13, FALSE, htype_delivery_date },
731 { US"envelope-to", 11, FALSE, htype_envelope_to },
732 { US"from", 4, TRUE, htype_from },
733 { US"message-id", 10, TRUE, htype_id },
734 { US"received", 8, FALSE, htype_received },
735 { US"reply-to", 8, FALSE, htype_reply_to },
736 { US"return-path", 11, FALSE, htype_return_path },
737 { US"sender", 6, TRUE, htype_sender },
738 { US"subject", 7, FALSE, htype_subject },
739 { US"to", 2, TRUE, htype_to }
740 };
741
742 int header_names_size = sizeof(header_names)/sizeof(header_name);
743
744 BOOL header_rewritten = FALSE;
745 uschar *helo_accept_junk_hosts = NULL;
746 uschar *helo_allow_chars = US"";
747 uschar *helo_lookup_domains = US"@ : @[]";
748 uschar *helo_try_verify_hosts = NULL;
749 BOOL helo_verified = FALSE;
750 BOOL helo_verify_failed = FALSE;
751 uschar *helo_verify_hosts = NULL;
752 const uschar *hex_digits = CUS"0123456789abcdef";
753 uschar *hold_domains = NULL;
754 BOOL host_checking = FALSE;
755 BOOL host_checking_callout = FALSE;
756 uschar *host_data = NULL;
757 BOOL host_find_failed_syntax= FALSE;
758 uschar *host_lookup = NULL;
759 BOOL host_lookup_deferred = FALSE;
760 BOOL host_lookup_failed = FALSE;
761 uschar *host_lookup_order = US"bydns:byaddr";
762 uschar *host_lookup_msg = US"";
763 int host_number = 0;
764 uschar *host_number_string = NULL;
765 uschar *host_reject_connection = NULL;
766 tree_node *hostlist_anchor = NULL;
767 int hostlist_count = 0;
768 uschar *hosts_treat_as_local = NULL;
769 uschar *hosts_connection_nolog = NULL;
770
771 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
772 BOOL ignore_fromline_local = FALSE;
773 uschar *ignore_fromline_hosts = NULL;
774 BOOL inetd_wait_mode = FALSE;
775 int inetd_wait_timeout = -1;
776 uschar *interface_address = NULL;
777 int interface_port = -1;
778 BOOL is_inetd = FALSE;
779 uschar *iterate_item = NULL;
780
781 int journal_fd = -1;
782
783 int keep_malformed = 4*24*60*60; /* 4 days */
784
785 uschar *eldap_dn = NULL;
786 int load_average = -2;
787 BOOL local_error_message = FALSE;
788 BOOL local_from_check = TRUE;
789 uschar *local_from_prefix = NULL;
790 uschar *local_from_suffix = NULL;
791
792 #if HAVE_IPV6
793 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
794 #else
795 uschar *local_interfaces = US"0.0.0.0";
796 #endif
797
798 uschar *local_scan_data = NULL;
799 int local_scan_timeout = 5*60;
800 BOOL local_sender_retain = FALSE;
801 gid_t local_user_gid = (gid_t)(-1);
802 uid_t local_user_uid = (uid_t)(-1);
803
804 tree_node *localpartlist_anchor= NULL;
805 int localpartlist_count = 0;
806 uschar *log_buffer = NULL;
807 unsigned int log_extra_selector = LX_default;
808 uschar *log_file_path = US LOG_FILE_PATH
809 "\0<--------------Space to patch log_file_path->";
810
811 /* Those log options with L_xxx identifiers have values less than 0x800000 and
812 are the ones that get put into log_write_selector. They can be used in calls to
813 log_write() to test for the bit. The options with LX_xxx identifiers have
814 values greater than 0x80000000 and are put into log_extra_selector (without the
815 top bit). They are never used in calls to log_write(), but are tested
816 independently. This separation became necessary when the number of log
817 selectors was getting close to filling a 32-bit word. */
818
819 /* Note that this list must be in alphabetical order. */
820
821 bit_table log_options[] = {
822 { US"8bitmime", LX_8bitmime },
823 { US"acl_warn_skipped", LX_acl_warn_skipped },
824 { US"address_rewrite", L_address_rewrite },
825 { US"all", L_all },
826 { US"all_parents", L_all_parents },
827 { US"arguments", LX_arguments },
828 { US"connection_reject", L_connection_reject },
829 { US"delay_delivery", L_delay_delivery },
830 { US"deliver_time", LX_deliver_time },
831 { US"delivery_size", LX_delivery_size },
832 { US"dnslist_defer", L_dnslist_defer },
833 { US"etrn", L_etrn },
834 { US"host_lookup_failed", L_host_lookup_failed },
835 { US"ident_timeout", LX_ident_timeout },
836 { US"incoming_interface", LX_incoming_interface },
837 { US"incoming_port", LX_incoming_port },
838 { US"lost_incoming_connection", L_lost_incoming_connection },
839 { US"outgoing_port", LX_outgoing_port },
840 { US"pid", LX_pid },
841 #ifdef EXPERIMENTAL_PROXY
842 { US"proxy", LX_proxy },
843 #endif
844 { US"queue_run", L_queue_run },
845 { US"queue_time", LX_queue_time },
846 { US"queue_time_overall", LX_queue_time_overall },
847 { US"received_recipients", LX_received_recipients },
848 { US"received_sender", LX_received_sender },
849 { US"rejected_header", LX_rejected_header },
850 { US"rejected_headers", LX_rejected_header },
851 { US"retry_defer", L_retry_defer },
852 { US"return_path_on_delivery", LX_return_path_on_delivery },
853 { US"sender_on_delivery", LX_sender_on_delivery },
854 { US"sender_verify_fail", LX_sender_verify_fail },
855 { US"size_reject", L_size_reject },
856 { US"skip_delivery", L_skip_delivery },
857 { US"smtp_confirmation", LX_smtp_confirmation },
858 { US"smtp_connection", L_smtp_connection },
859 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
860 { US"smtp_mailauth", LX_smtp_mailauth },
861 { US"smtp_no_mail", LX_smtp_no_mail },
862 { US"smtp_protocol_error", L_smtp_protocol_error },
863 { US"smtp_syntax_error", L_smtp_syntax_error },
864 { US"subject", LX_subject },
865 { US"tls_certificate_verified", LX_tls_certificate_verified },
866 { US"tls_cipher", LX_tls_cipher },
867 { US"tls_peerdn", LX_tls_peerdn },
868 { US"tls_sni", LX_tls_sni },
869 { US"unknown_in_list", LX_unknown_in_list }
870 };
871
872 int log_options_count = sizeof(log_options)/sizeof(bit_table);
873 int log_reject_target = 0;
874 uschar *log_selector_string = NULL;
875 FILE *log_stderr = NULL;
876 BOOL log_testing_mode = FALSE;
877 BOOL log_timezone = FALSE;
878 unsigned int log_write_selector= L_default;
879 uschar *login_sender_address = NULL;
880 uschar *lookup_dnssec_authenticated = NULL;
881 int lookup_open_max = 25;
882 uschar *lookup_value = NULL;
883
884 macro_item *macros = NULL;
885 uschar *mailstore_basename = NULL;
886 #ifdef WITH_CONTENT_SCAN
887 uschar *malware_name = NULL; /* Virus Name */
888 #endif
889 int max_received_linelength= 0;
890 int max_username_length = 0;
891 int message_age = 0;
892 uschar *message_body = NULL;
893 uschar *message_body_end = NULL;
894 BOOL message_body_newlines = FALSE;
895 int message_body_size = 0;
896 int message_body_visible = 500;
897 int message_ended = END_NOTSTARTED;
898 uschar *message_headers = NULL;
899 uschar *message_id;
900 uschar *message_id_domain = NULL;
901 uschar *message_id_text = NULL;
902 struct timeval message_id_tv = { 0, 0 };
903 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
904 uschar *message_id_external;
905 int message_linecount = 0;
906 BOOL message_logs = TRUE;
907 int message_size = 0;
908 uschar *message_size_limit = US"50M";
909 #ifdef EXPERIMENTAL_INTERNATIONAL
910 BOOL message_smtputf8 = FALSE;
911 #endif
912 uschar message_subdir[2] = { 0, 0 };
913 uschar *message_reference = NULL;
914
915 /* MIME ACL expandables */
916 #ifdef WITH_CONTENT_SCAN
917 int mime_anomaly_level = 0;
918 const uschar *mime_anomaly_text = NULL;
919 uschar *mime_boundary = NULL;
920 uschar *mime_charset = NULL;
921 uschar *mime_content_description = NULL;
922 uschar *mime_content_disposition = NULL;
923 uschar *mime_content_id = NULL;
924 unsigned int mime_content_size = 0;
925 uschar *mime_content_transfer_encoding = NULL;
926 uschar *mime_content_type = NULL;
927 uschar *mime_decoded_filename = NULL;
928 uschar *mime_filename = NULL;
929 int mime_is_multipart = 0;
930 int mime_is_coverletter = 0;
931 int mime_is_rfc822 = 0;
932 int mime_part_count = -1;
933 #endif
934
935 BOOL mua_wrapper = FALSE;
936
937 uid_t *never_users = NULL;
938 #ifdef WITH_CONTENT_SCAN
939 BOOL no_mbox_unspool = FALSE;
940 #endif
941 BOOL no_multiline_responses = FALSE;
942
943 uid_t original_euid;
944 gid_t originator_gid;
945 uschar *originator_login = NULL;
946 uschar *originator_name = NULL;
947 uid_t originator_uid;
948 uschar *override_local_interfaces = NULL;
949 uschar *override_pid_file_path = NULL;
950
951 BOOL parse_allow_group = FALSE;
952 BOOL parse_found_group = FALSE;
953 uschar *percent_hack_domains = NULL;
954 uschar *pid_file_path = US PID_FILE_PATH
955 "\0<--------------Space to patch pid_file_path->";
956 BOOL pipelining_enable = TRUE;
957 uschar *pipelining_advertise_hosts = US"*";
958 BOOL preserve_message_logs = FALSE;
959 uschar *primary_hostname = NULL;
960 BOOL print_topbitchars = FALSE;
961 uschar process_info[PROCESS_INFO_SIZE];
962 int process_info_len = 0;
963 uschar *process_log_path = NULL;
964 BOOL prod_requires_admin = TRUE;
965
966 #ifdef EXPERIMENTAL_PROXY
967 uschar *proxy_host_address = US"";
968 int proxy_host_port = 0;
969 uschar *proxy_required_hosts = US"";
970 BOOL proxy_session = FALSE;
971 BOOL proxy_session_failed = FALSE;
972 uschar *proxy_target_address = US"";
973 int proxy_target_port = 0;
974 #endif
975
976 uschar *prvscheck_address = NULL;
977 uschar *prvscheck_keynum = NULL;
978 uschar *prvscheck_result = NULL;
979
980
981 const uschar *qualify_domain_recipient = NULL;
982 uschar *qualify_domain_sender = NULL;
983 BOOL queue_2stage = FALSE;
984 uschar *queue_domains = NULL;
985 int queue_interval = -1;
986 BOOL queue_list_requires_admin = TRUE;
987 BOOL queue_only = FALSE;
988 uschar *queue_only_file = NULL;
989 int queue_only_load = -1;
990 BOOL queue_only_load_latch = TRUE;
991 BOOL queue_only_override = TRUE;
992 BOOL queue_only_policy = FALSE;
993 BOOL queue_run_first_delivery = FALSE;
994 BOOL queue_run_force = FALSE;
995 BOOL queue_run_in_order = FALSE;
996 BOOL queue_run_local = FALSE;
997 int queue_run_max = 5;
998 pid_t queue_run_pid = (pid_t)0;
999 int queue_run_pipe = -1;
1000 BOOL queue_running = FALSE;
1001 BOOL queue_smtp = FALSE;
1002 uschar *queue_smtp_domains = NULL;
1003
1004 unsigned int random_seed = 0;
1005 tree_node *ratelimiters_cmd = NULL;
1006 tree_node *ratelimiters_conn = NULL;
1007 tree_node *ratelimiters_mail = NULL;
1008 uschar *raw_active_hostname = NULL;
1009 uschar *raw_sender = NULL;
1010 uschar **raw_recipients = NULL;
1011 int raw_recipients_count = 0;
1012
1013 int rcpt_count = 0;
1014 int rcpt_fail_count = 0;
1015 int rcpt_defer_count = 0;
1016 gid_t real_gid;
1017 uid_t real_uid;
1018 BOOL really_exim = TRUE;
1019 BOOL receive_call_bombout = FALSE;
1020 int receive_linecount = 0;
1021 int receive_messagecount = 0;
1022 int receive_timeout = 0;
1023 int received_count = 0;
1024 uschar *received_for = NULL;
1025
1026 /* This is the default text for Received headers generated by Exim. The
1027 date will be automatically added on the end. */
1028
1029 uschar *received_header_text = US
1030 "Received: "
1031 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1032 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1033 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1034 "by $primary_hostname "
1035 "${if def:received_protocol {with $received_protocol}} "
1036 #ifdef SUPPORT_TLS
1037 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1038 #endif
1039 "(Exim $version_number)\n\t"
1040 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1041 "id $message_exim_id"
1042 "${if def:received_for {\n\tfor $received_for}}"
1043 "\0<---------------Space to patch received_header_text->";
1044
1045 int received_headers_max = 30;
1046 uschar *received_protocol = NULL;
1047 int received_time = 0;
1048 uschar *recipient_data = NULL;
1049 uschar *recipient_unqualified_hosts = NULL;
1050 uschar *recipient_verify_failure = NULL;
1051 int recipients_count = 0;
1052 BOOL recipients_discarded = FALSE;
1053 recipient_item *recipients_list = NULL;
1054 int recipients_list_max = 0;
1055 int recipients_max = 0;
1056 BOOL recipients_max_reject = FALSE;
1057 const pcre *regex_AUTH = NULL;
1058 const pcre *regex_check_dns_names = NULL;
1059 const pcre *regex_From = NULL;
1060 const pcre *regex_IGNOREQUOTA = NULL;
1061 const pcre *regex_PIPELINING = NULL;
1062 const pcre *regex_SIZE = NULL;
1063 const pcre *regex_smtp_code = NULL;
1064 const pcre *regex_ismsgid = NULL;
1065 #ifdef WHITELIST_D_MACROS
1066 const pcre *regex_whitelisted_macro = NULL;
1067 #endif
1068 #ifdef WITH_CONTENT_SCAN
1069 uschar *regex_match_string = NULL;
1070 #endif
1071 int remote_delivery_count = 0;
1072 int remote_max_parallel = 2;
1073 uschar *remote_sort_domains = NULL;
1074 int retry_data_expire = 7*24*60*60;
1075 int retry_interval_max = 24*60*60;
1076 int retry_maximum_timeout = 0; /* set from retry config */
1077 retry_config *retries = NULL;
1078 uschar *return_path = NULL;
1079 BOOL return_path_remove = TRUE;
1080 int rewrite_existflags = 0;
1081 uschar *rfc1413_hosts = US"@[]";
1082 int rfc1413_query_timeout = 0;
1083 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1084 uid_t root_gid = ROOT_GID;
1085 uid_t root_uid = ROOT_UID;
1086
1087 router_instance *routers = NULL;
1088 router_instance router_defaults = {
1089 NULL, /* chain pointer */
1090 NULL, /* name */
1091 NULL, /* info */
1092 NULL, /* private options block pointer */
1093 NULL, /* driver name */
1094
1095 NULL, /* address_data */
1096 #ifdef EXPERIMENTAL_BRIGHTMAIL
1097 NULL, /* bmi_rule */
1098 #endif
1099 NULL, /* cannot_route_message */
1100 NULL, /* condition */
1101 NULL, /* current_directory */
1102 NULL, /* debug_string */
1103 NULL, /* domains */
1104 NULL, /* errors_to */
1105 NULL, /* expand_gid */
1106 NULL, /* expand_uid */
1107 NULL, /* expand_more */
1108 NULL, /* expand_unseen */
1109 NULL, /* extra_headers */
1110 NULL, /* fallback_hosts */
1111 NULL, /* home_directory */
1112 NULL, /* ignore_target_hosts */
1113 NULL, /* local_parts */
1114 NULL, /* pass_router_name */
1115 NULL, /* prefix */
1116 NULL, /* redirect_router_name */
1117 NULL, /* remove_headers */
1118 NULL, /* require_files */
1119 NULL, /* router_home_directory */
1120 US"freeze", /* self */
1121 NULL, /* senders */
1122 NULL, /* suffix */
1123 NULL, /* translate_ip_address */
1124 NULL, /* transport_name */
1125
1126 TRUE, /* address_test */
1127 #ifdef EXPERIMENTAL_BRIGHTMAIL
1128 FALSE, /* bmi_deliver_alternate */
1129 FALSE, /* bmi_deliver_default */
1130 FALSE, /* bmi_dont_deliver */
1131 #endif
1132 TRUE, /* expn */
1133 FALSE, /* caseful_local_part */
1134 FALSE, /* check_local_user */
1135 FALSE, /* disable_logging */
1136 FALSE, /* fail_verify_recipient */
1137 FALSE, /* fail_verify_sender */
1138 FALSE, /* gid_set */
1139 FALSE, /* initgroups */
1140 TRUE_UNSET, /* log_as_local */
1141 TRUE, /* more */
1142 FALSE, /* pass_on_timeout */
1143 FALSE, /* prefix_optional */
1144 TRUE, /* repeat_use */
1145 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1146 FALSE, /* same_domain_copy_routing */
1147 FALSE, /* self_rewrite */
1148 FALSE, /* suffix_optional */
1149 FALSE, /* verify_only */
1150 TRUE, /* verify_recipient */
1151 TRUE, /* verify_sender */
1152 FALSE, /* uid_set */
1153 FALSE, /* unseen */
1154 FALSE, /* dsn_lasthop */
1155
1156 self_freeze, /* self_code */
1157 (uid_t)(-1), /* uid */
1158 (gid_t)(-1), /* gid */
1159
1160 NULL, /* fallback_hostlist */
1161 NULL, /* transport instance */
1162 NULL, /* pass_router */
1163 NULL /* redirect_router */
1164 };
1165
1166 uschar *router_name = NULL;
1167
1168 ip_address_item *running_interfaces = NULL;
1169 BOOL running_in_test_harness = FALSE;
1170
1171 /* This is a weird one. The following string gets patched in the binary by the
1172 script that sets up a copy of Exim for running in the test harness. It seems
1173 that compilers are now clever, and share constant strings if they can.
1174 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1175 make use of the end of this string in order to save space. So the patching then
1176 wrecks this. We defeat this optimization by adding some additional characters
1177 onto the end of the string. */
1178
1179 uschar *running_status = US">>>running<<<" "\0EXTRA";
1180
1181 int runrc = 0;
1182
1183 uschar *search_error_message = NULL;
1184 BOOL search_find_defer = FALSE;
1185 uschar *self_hostname = NULL;
1186 uschar *sender_address = NULL;
1187 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1188 uschar *sender_address_data = NULL;
1189 BOOL sender_address_forced = FALSE;
1190 uschar *sender_address_unrewritten = NULL;
1191 uschar *sender_data = NULL;
1192 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1193 uschar *sender_fullhost = NULL;
1194 uschar *sender_helo_name = NULL;
1195 uschar **sender_host_aliases = &no_aliases;
1196 uschar *sender_host_address = NULL;
1197 uschar *sender_host_authenticated = NULL;
1198 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1199 BOOL sender_host_dnssec = FALSE;
1200 uschar *sender_host_name = NULL;
1201 int sender_host_port = 0;
1202 BOOL sender_host_notsocket = FALSE;
1203 BOOL sender_host_unknown = FALSE;
1204 uschar *sender_ident = NULL;
1205 BOOL sender_local = FALSE;
1206 BOOL sender_name_forced = FALSE;
1207 uschar *sender_rate = NULL;
1208 uschar *sender_rate_limit = NULL;
1209 uschar *sender_rate_period = NULL;
1210 uschar *sender_rcvhost = NULL;
1211 BOOL sender_set_untrusted = FALSE;
1212 uschar *sender_unqualified_hosts = NULL;
1213 uschar *sender_verify_failure = NULL;
1214 address_item *sender_verified_list = NULL;
1215 address_item *sender_verified_failed = NULL;
1216 int sender_verified_rc = -1;
1217 BOOL sender_verified_responded = FALSE;
1218 uschar *sending_ip_address = NULL;
1219 int sending_port = -1;
1220 SIGNAL_BOOL sigalrm_seen = FALSE;
1221 uschar **sighup_argv = NULL;
1222 int smtp_accept_count = 0;
1223 BOOL smtp_accept_keepalive = TRUE;
1224 int smtp_accept_max = 20;
1225 int smtp_accept_max_nonmail= 10;
1226 uschar *smtp_accept_max_nonmail_hosts = US"*";
1227 int smtp_accept_max_per_connection = 1000;
1228 uschar *smtp_accept_max_per_host = NULL;
1229 int smtp_accept_queue = 0;
1230 int smtp_accept_queue_per_connection = 10;
1231 int smtp_accept_reserve = 0;
1232 uschar *smtp_active_hostname = NULL;
1233 BOOL smtp_authenticated = FALSE;
1234 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1235 "Exim $version_number $tod_full"
1236 "\0<---------------Space to patch smtp_banner->";
1237 BOOL smtp_batched_input = FALSE;
1238 BOOL smtp_check_spool_space = TRUE;
1239 int smtp_ch_index = 0;
1240 uschar *smtp_cmd_argument = NULL;
1241 uschar *smtp_cmd_buffer = NULL;
1242 time_t smtp_connection_start = 0;
1243 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1244 int smtp_connect_backlog = 20;
1245 double smtp_delay_mail = 0.0;
1246 double smtp_delay_rcpt = 0.0;
1247 BOOL smtp_enforce_sync = TRUE;
1248 FILE *smtp_in = NULL;
1249 BOOL smtp_input = FALSE;
1250 int smtp_load_reserve = -1;
1251 int smtp_mailcmd_count = 0;
1252 FILE *smtp_out = NULL;
1253 uschar *smtp_etrn_command = NULL;
1254 BOOL smtp_etrn_serialize = TRUE;
1255 int smtp_max_synprot_errors= 3;
1256 int smtp_max_unknown_commands = 3;
1257 uschar *smtp_notquit_reason = NULL;
1258 uschar *smtp_ratelimit_hosts = NULL;
1259 uschar *smtp_ratelimit_mail = NULL;
1260 uschar *smtp_ratelimit_rcpt = NULL;
1261 uschar *smtp_read_error = US"";
1262 int smtp_receive_timeout = 5*60;
1263 uschar *smtp_receive_timeout_s = NULL;
1264 uschar *smtp_reserve_hosts = NULL;
1265 BOOL smtp_return_error_details = FALSE;
1266 int smtp_rlm_base = 0;
1267 double smtp_rlm_factor = 0.0;
1268 int smtp_rlm_limit = 0;
1269 int smtp_rlm_threshold = INT_MAX;
1270 int smtp_rlr_base = 0;
1271 double smtp_rlr_factor = 0.0;
1272 int smtp_rlr_limit = 0;
1273 int smtp_rlr_threshold = INT_MAX;
1274 BOOL smtp_use_pipelining = FALSE;
1275 BOOL smtp_use_size = FALSE;
1276 #ifdef EXPERIMENTAL_INTERNATIONAL
1277 uschar *smtputf8_advertise_hosts = US"*";
1278 #endif
1279
1280 #ifdef WITH_CONTENT_SCAN
1281 uschar *spamd_address = US"127.0.0.1 783";
1282 uschar *spam_bar = NULL;
1283 uschar *spam_report = NULL;
1284 uschar *spam_action = NULL;
1285 uschar *spam_score = NULL;
1286 uschar *spam_score_int = NULL;
1287 #endif
1288 #ifdef EXPERIMENTAL_SPF
1289 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1290 uschar *spf_header_comment = NULL;
1291 uschar *spf_received = NULL;
1292 uschar *spf_result = NULL;
1293 uschar *spf_smtp_comment = NULL;
1294 #endif
1295
1296 BOOL split_spool_directory = FALSE;
1297 uschar *spool_directory = US SPOOL_DIRECTORY
1298 "\0<--------------Space to patch spool_directory->";
1299 #ifdef EXPERIMENTAL_SRS
1300 uschar *srs_config = NULL;
1301 uschar *srs_db_address = NULL;
1302 uschar *srs_db_key = NULL;
1303 int srs_hashlength = 6;
1304 int srs_hashmin = -1;
1305 int srs_maxage = 31;
1306 uschar *srs_orig_recipient = NULL;
1307 uschar *srs_orig_sender = NULL;
1308 uschar *srs_recipient = NULL;
1309 uschar *srs_secrets = NULL;
1310 uschar *srs_status = NULL;
1311 BOOL srs_usehash = TRUE;
1312 BOOL srs_usetimestamp = TRUE;
1313 #endif
1314 BOOL strict_acl_vars = FALSE;
1315 int string_datestamp_offset= -1;
1316 int string_datestamp_length= 0;
1317 int string_datestamp_type = -1;
1318 BOOL strip_excess_angle_brackets = FALSE;
1319 BOOL strip_trailing_dot = FALSE;
1320 uschar *submission_domain = NULL;
1321 BOOL submission_mode = FALSE;
1322 uschar *submission_name = NULL;
1323 BOOL suppress_local_fixups = FALSE;
1324 BOOL suppress_local_fixups_default = FALSE;
1325 BOOL synchronous_delivery = FALSE;
1326 BOOL syslog_duplication = TRUE;
1327 int syslog_facility = LOG_MAIL;
1328 uschar *syslog_processname = US"exim";
1329 BOOL syslog_timestamp = TRUE;
1330 uschar *system_filter = NULL;
1331
1332 uschar *system_filter_directory_transport = NULL;
1333 uschar *system_filter_file_transport = NULL;
1334 uschar *system_filter_pipe_transport = NULL;
1335 uschar *system_filter_reply_transport = NULL;
1336
1337 gid_t system_filter_gid = 0;
1338 BOOL system_filter_gid_set = FALSE;
1339 uid_t system_filter_uid = (uid_t)-1;
1340 BOOL system_filter_uid_set = FALSE;
1341 BOOL system_filtering = FALSE;
1342
1343 BOOL tcp_nodelay = TRUE;
1344 #ifdef USE_TCP_WRAPPERS
1345 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1346 #endif
1347 int test_harness_load_avg = 0;
1348 int thismessage_size_limit = 0;
1349 int timeout_frozen_after = 0;
1350 BOOL timestamps_utc = FALSE;
1351
1352 transport_instance *transports = NULL;
1353
1354 transport_instance transport_defaults = {
1355 NULL, /* chain pointer */
1356 NULL, /* name */
1357 NULL, /* info */
1358 NULL, /* private options block pointer */
1359 NULL, /* driver name */
1360 NULL, /* setup entry point */
1361 1, /* batch_max */
1362 NULL, /* batch_id */
1363 NULL, /* home_dir */
1364 NULL, /* current_dir */
1365 NULL, /* expand-multi-domain */
1366 TRUE, /* multi-domain */
1367 FALSE, /* overrides_hosts */
1368 100, /* max_addresses */
1369 500, /* connection_max_messages */
1370 FALSE, /* deliver_as_creator */
1371 FALSE, /* disable_logging */
1372 FALSE, /* initgroups */
1373 FALSE, /* uid_set */
1374 FALSE, /* gid_set */
1375 (uid_t)(-1), /* uid */
1376 (gid_t)(-1), /* gid */
1377 NULL, /* expand_uid */
1378 NULL, /* expand_gid */
1379 NULL, /* warn_message */
1380 NULL, /* shadow */
1381 NULL, /* shadow_condition */
1382 NULL, /* filter_command */
1383 NULL, /* add_headers */
1384 NULL, /* remove_headers */
1385 NULL, /* return_path */
1386 NULL, /* debug_string */
1387 NULL, /* message_size_limit */
1388 NULL, /* headers_rewrite */
1389 NULL, /* rewrite_rules */
1390 0, /* rewrite_existflags */
1391 300, /* filter_timeout */
1392 FALSE, /* body_only */
1393 FALSE, /* delivery_date_add */
1394 FALSE, /* envelope_to_add */
1395 FALSE, /* headers_only */
1396 FALSE, /* rcpt_include_affixes */
1397 FALSE, /* return_path_add */
1398 FALSE, /* return_output */
1399 FALSE, /* return_fail_output */
1400 FALSE, /* log_output */
1401 FALSE, /* log_fail_output */
1402 FALSE, /* log_defer_output */
1403 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1404 1 nor 0 so can detect unset */
1405 #ifdef EXPERIMENTAL_EVENT
1406 ,NULL /* event_action */
1407 #endif
1408 };
1409
1410 int transport_count;
1411 uschar *transport_name = NULL;
1412 int transport_newlines;
1413 const uschar **transport_filter_argv = NULL;
1414 int transport_filter_timeout;
1415 BOOL transport_filter_timed_out = FALSE;
1416 int transport_write_timeout= 0;
1417
1418 tree_node *tree_dns_fails = NULL;
1419 tree_node *tree_duplicates = NULL;
1420 tree_node *tree_nonrecipients = NULL;
1421 tree_node *tree_unusable = NULL;
1422
1423 BOOL trusted_caller = FALSE;
1424 BOOL trusted_config = TRUE;
1425 gid_t *trusted_groups = NULL;
1426 uid_t *trusted_users = NULL;
1427 uschar *timezone_string = US TIMEZONE_DEFAULT;
1428
1429 uschar *unknown_login = NULL;
1430 uschar *unknown_username = NULL;
1431 uschar *untrusted_set_sender = NULL;
1432
1433 /* A regex for matching a "From_" line in an incoming message, in the form
1434
1435 From ph10 Fri Jan 5 12:35 GMT 1996
1436
1437 which the "mail" commands send to the MTA (undocumented, of course), or in
1438 the form
1439
1440 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1441
1442 which is apparently used by some UUCPs, despite it not being in RFC 976.
1443 Because of variations in time formats, just match up to the minutes. That
1444 should be sufficient. Examples have been seen of time fields like 12:1:03,
1445 so just require one digit for hours and minutes. The weekday is also absent
1446 in some forms. */
1447
1448 uschar *uucp_from_pattern = US
1449 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1450 "(?:" /* Non-extracting bracket */
1451 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1452 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1453 ")" /* End alternation */
1454 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1455
1456 uschar *uucp_from_sender = US"$1";
1457
1458 uschar *verify_mode = NULL;
1459 uschar *version_copyright =
1460 US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1461 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1462 uschar *version_date = US"?";
1463 uschar *version_cnumber = US"????";
1464 uschar *version_string = US"?";
1465
1466 uschar *warn_message_file = NULL;
1467 int warning_count = 0;
1468 uschar *warnmsg_delay = NULL;
1469 uschar *warnmsg_recipients = NULL;
1470 BOOL write_rejectlog = TRUE;
1471
1472
1473 /* End of globals.c */
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