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Merge branch 'SMTPUTF8_1516'. Bug 1516
[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 #ifdef EXPERIMENTAL_INTERNATIONAL
179 const pcre *regex_UTF8 = NULL;
180 #endif
181
182 /* Input-reading functions for messages, so we can use special ones for
183 incoming TCP/IP. The defaults use stdin. We never need these for any
184 stand-alone tests. */
185
186 #ifndef STAND_ALONE
187 int (*receive_getc)(void) = stdin_getc;
188 int (*receive_ungetc)(int) = stdin_ungetc;
189 int (*receive_feof)(void) = stdin_feof;
190 int (*receive_ferror)(void) = stdin_ferror;
191 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
192 #endif
193
194
195 /* List of per-address expansion variables for clearing and saving/restoring
196 when verifying one address while routing/verifying another. We have to have
197 the size explicit, because it is referenced from more than one module. */
198
199 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
200 CUSS &deliver_address_data,
201 CUSS &deliver_domain,
202 CUSS &deliver_domain_data,
203 CUSS &deliver_domain_orig,
204 CUSS &deliver_domain_parent,
205 CUSS &deliver_localpart,
206 CUSS &deliver_localpart_data,
207 CUSS &deliver_localpart_orig,
208 CUSS &deliver_localpart_parent,
209 CUSS &deliver_localpart_prefix,
210 CUSS &deliver_localpart_suffix,
211 CUSS (uschar **)(&deliver_recipients),
212 CUSS &deliver_host,
213 CUSS &deliver_home,
214 CUSS &address_file,
215 CUSS &address_pipe,
216 CUSS &self_hostname,
217 NULL };
218
219 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
220
221 /* General global variables */
222
223 header_line *acl_added_headers = NULL;
224 tree_node *acl_anchor = NULL;
225 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
226 NULL, NULL, NULL, NULL};
227 int acl_narg = 0;
228
229 uschar *acl_not_smtp = NULL;
230 #ifdef WITH_CONTENT_SCAN
231 uschar *acl_not_smtp_mime = NULL;
232 #endif
233 uschar *acl_not_smtp_start = NULL;
234 uschar *acl_removed_headers = NULL;
235 uschar *acl_smtp_auth = NULL;
236 uschar *acl_smtp_connect = NULL;
237 uschar *acl_smtp_data = NULL;
238 #ifndef DISABLE_PRDR
239 uschar *acl_smtp_data_prdr = US"accept";
240 #endif
241 #ifndef DISABLE_DKIM
242 uschar *acl_smtp_dkim = NULL;
243 #endif
244 uschar *acl_smtp_etrn = NULL;
245 uschar *acl_smtp_expn = NULL;
246 uschar *acl_smtp_helo = NULL;
247 uschar *acl_smtp_mail = NULL;
248 uschar *acl_smtp_mailauth = NULL;
249 #ifdef WITH_CONTENT_SCAN
250 uschar *acl_smtp_mime = NULL;
251 #endif
252 uschar *acl_smtp_notquit = NULL;
253 uschar *acl_smtp_predata = NULL;
254 uschar *acl_smtp_quit = NULL;
255 uschar *acl_smtp_rcpt = NULL;
256 uschar *acl_smtp_starttls = NULL;
257 uschar *acl_smtp_vrfy = NULL;
258
259 BOOL acl_temp_details = FALSE;
260 tree_node *acl_var_c = NULL;
261 tree_node *acl_var_m = NULL;
262 uschar *acl_verify_message = NULL;
263 string_item *acl_warn_logged = NULL;
264
265 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
266 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
267
268 uschar *acl_wherenames[] = { US"RCPT",
269 US"MAIL",
270 US"PREDATA",
271 US"MIME",
272 US"DKIM",
273 US"DATA",
274 #ifndef DISABLE_PRDR
275 US"PRDR",
276 #endif
277 US"non-SMTP",
278 US"AUTH",
279 US"connection",
280 US"ETRN",
281 US"EXPN",
282 US"EHLO or HELO",
283 US"MAILAUTH",
284 US"non-SMTP-start",
285 US"NOTQUIT",
286 US"QUIT",
287 US"STARTTLS",
288 US"VRFY",
289 US"delivery",
290 US"unknown"
291 };
292
293 uschar *acl_wherecodes[] = { US"550", /* RCPT */
294 US"550", /* MAIL */
295 US"550", /* PREDATA */
296 US"550", /* MIME */
297 US"550", /* DKIM */
298 US"550", /* DATA */
299 #ifndef DISABLE_PRDR
300 US"550", /* RCPT PRDR */
301 #endif
302 US"0", /* not SMTP; not relevant */
303 US"503", /* AUTH */
304 US"550", /* connect */
305 US"458", /* ETRN */
306 US"550", /* EXPN */
307 US"550", /* HELO/EHLO */
308 US"0", /* MAILAUTH; not relevant */
309 US"0", /* not SMTP; not relevant */
310 US"0", /* NOTQUIT; not relevant */
311 US"0", /* QUIT; not relevant */
312 US"550", /* STARTTLS */
313 US"252", /* VRFY */
314 US"0", /* delivery; not relevant */
315 US"0" /* unknown; not relevant */
316 };
317
318 BOOL active_local_from_check = FALSE;
319 BOOL active_local_sender_retain = FALSE;
320 int body_8bitmime = 0;
321 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
322 address_item *addr_duplicate = NULL;
323
324 address_item address_defaults = {
325 NULL, /* next */
326 NULL, /* parent */
327 NULL, /* first */
328 NULL, /* dupof */
329 NULL, /* start_router */
330 NULL, /* router */
331 NULL, /* transport */
332 NULL, /* host_list */
333 NULL, /* host_used */
334 NULL, /* fallback_hosts */
335 NULL, /* reply */
336 NULL, /* retries */
337 NULL, /* address */
338 NULL, /* unique */
339 NULL, /* cc_local_part */
340 NULL, /* lc_local_part */
341 NULL, /* local_part */
342 NULL, /* prefix */
343 NULL, /* suffix */
344 NULL, /* domain */
345 NULL, /* address_retry_key */
346 NULL, /* domain_retry_key */
347 NULL, /* current_dir */
348 NULL, /* home_dir */
349 NULL, /* message */
350 NULL, /* user_message */
351 NULL, /* onetime_parent */
352 NULL, /* pipe_expandn */
353 NULL, /* return_filename */
354 NULL, /* self_hostname */
355 NULL, /* shadow_message */
356 #ifdef SUPPORT_TLS
357 NULL, /* cipher */
358 NULL, /* ourcert */
359 NULL, /* peercert */
360 NULL, /* peerdn */
361 OCSP_NOT_REQ, /* ocsp */
362 #endif
363 NULL, /* authenticator */
364 NULL, /* auth_id */
365 NULL, /* auth_sndr */
366 NULL, /* dsn_orcpt */
367 0, /* dsn_flags */
368 0, /* dsn_aware */
369 (uid_t)(-1), /* uid */
370 (gid_t)(-1), /* gid */
371 0, /* flags */
372 { 0 }, /* domain_cache - any larger array should be zeroed */
373 { 0 }, /* localpart_cache - ditto */
374 -1, /* mode */
375 0, /* more_errno */
376 ERRNO_UNKNOWNERROR, /* basic_errno */
377 0, /* child_count */
378 -1, /* return_file */
379 SPECIAL_NONE, /* special_action */
380 DEFER, /* transport_return */
381 { /* fields that are propagated to children */
382 NULL, /* address_data */
383 NULL, /* domain_data */
384 NULL, /* localpart_data */
385 NULL, /* errors_address */
386 NULL, /* extra_headers */
387 NULL, /* remove_headers */
388 #ifdef EXPERIMENTAL_SRS
389 NULL, /* srs_sender */
390 #endif
391 #ifdef EXPERIMENTAL_INTERNATIONAL
392 FALSE, /* utf8 */
393 #endif
394 }
395 };
396
397 uschar *address_file = NULL;
398 uschar *address_pipe = NULL;
399 BOOL address_test_mode = FALSE;
400 tree_node *addresslist_anchor = NULL;
401 int addresslist_count = 0;
402 gid_t *admin_groups = NULL;
403 BOOL admin_user = FALSE;
404 BOOL allow_auth_unadvertised= FALSE;
405 BOOL allow_domain_literals = FALSE;
406 BOOL allow_mx_to_ip = FALSE;
407 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
408 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
409 BOOL allow_utf8_domains = FALSE;
410 uschar *authenticated_fail_id = NULL;
411 uschar *authenticated_id = NULL;
412 uschar *authenticated_sender = NULL;
413 BOOL authentication_failed = FALSE;
414 auth_instance *auths = NULL;
415 uschar *auth_advertise_hosts = US"*";
416 auth_instance auth_defaults = {
417 NULL, /* chain pointer */
418 NULL, /* name */
419 NULL, /* info */
420 NULL, /* private options block pointer */
421 NULL, /* driver_name */
422 NULL, /* advertise_condition */
423 NULL, /* client_condition */
424 NULL, /* public_name */
425 NULL, /* set_id */
426 NULL, /* set_client_id */
427 NULL, /* server_mail_auth_condition */
428 NULL, /* server_debug_string */
429 NULL, /* server_condition */
430 FALSE, /* client */
431 FALSE, /* server */
432 FALSE /* advertised */
433 };
434
435 uschar *auth_defer_msg = US"reason not recorded";
436 uschar *auth_defer_user_msg = US"";
437 uschar *auth_vars[AUTH_VARS];
438 int auto_thaw = 0;
439 #ifdef WITH_CONTENT_SCAN
440 BOOL av_failed = FALSE;
441 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
442 #endif
443
444 BOOL background_daemon = TRUE;
445
446 #if BASE_62 == 62
447 uschar *base62_chars=
448 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
449 #else
450 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
451 #endif
452
453 uschar *bi_command = NULL;
454 uschar *big_buffer = NULL;
455 int big_buffer_size = BIG_BUFFER_SIZE;
456 #ifdef EXPERIMENTAL_BRIGHTMAIL
457 uschar *bmi_alt_location = NULL;
458 uschar *bmi_base64_tracker_verdict = NULL;
459 uschar *bmi_base64_verdict = NULL;
460 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
461 int bmi_deliver = 1;
462 int bmi_run = 0;
463 uschar *bmi_verdicts = NULL;
464 #endif
465 int body_linecount = 0;
466 int body_zerocount = 0;
467 uschar *bounce_message_file = NULL;
468 uschar *bounce_message_text = NULL;
469 uschar *bounce_recipient = NULL;
470 BOOL bounce_return_body = TRUE;
471 BOOL bounce_return_message = TRUE;
472 int bounce_return_size_limit = 100*1024;
473 uschar *bounce_sender_authentication = NULL;
474 int bsmtp_transaction_linecount = 0;
475
476 int callout_cache_domain_positive_expire = 7*24*60*60;
477 int callout_cache_domain_negative_expire = 3*60*60;
478 int callout_cache_positive_expire = 24*60*60;
479 int callout_cache_negative_expire = 2*60*60;
480 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
481 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
482 int check_log_inodes = 0;
483 int check_log_space = 0;
484 BOOL check_rfc2047_length = TRUE;
485 int check_spool_inodes = 0;
486 int check_spool_space = 0;
487 uschar *client_authenticator = NULL;
488 uschar *client_authenticated_id = NULL;
489 uschar *client_authenticated_sender = NULL;
490 int clmacro_count = 0;
491 uschar *clmacros[MAX_CLMACROS];
492 BOOL config_changed = FALSE;
493 FILE *config_file = NULL;
494 uschar *config_filename = NULL;
495 int config_lineno = 0;
496 #ifdef CONFIGURE_GROUP
497 gid_t config_gid = CONFIGURE_GROUP;
498 #endif
499 uschar *config_main_filelist = US CONFIGURE_FILE
500 "\0<-----------Space to patch configure_filename->";
501 uschar *config_main_filename = NULL;
502 uschar *config_main_directory = NULL;
503
504 #ifdef CONFIGURE_OWNER
505 uid_t config_uid = CONFIGURE_OWNER;
506 #endif
507
508 int connection_max_messages= -1;
509 uschar *continue_hostname = NULL;
510 uschar *continue_host_address = NULL;
511 BOOL continue_more = FALSE;
512 int continue_sequence = 1;
513 uschar *continue_transport = NULL;
514
515 uschar *csa_status = NULL;
516 cut_t cutthrough = {
517 FALSE, /* delivery: when to attempt */
518 -1, /* fd: open connection */
519 0, /* nrcpt: number of addresses */
520 };
521
522 BOOL daemon_listen = FALSE;
523 uschar *daemon_smtp_port = US"smtp";
524 int daemon_startup_retries = 9;
525 int daemon_startup_sleep = 30;
526
527 #ifdef EXPERIMENTAL_DCC
528 BOOL dcc_direct_add_header = FALSE;
529 uschar *dcc_header = NULL;
530 uschar *dcc_result = NULL;
531 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
532 uschar *dccifd_options = US"header";
533 #endif
534
535 BOOL debug_daemon = FALSE;
536 int debug_fd = -1;
537 FILE *debug_file = NULL;
538 bit_table debug_options[] = {
539 { US"acl", D_acl },
540 { US"all", D_all },
541 { US"auth", D_auth },
542 { US"deliver", D_deliver },
543 { US"dns", D_dns },
544 { US"dnsbl", D_dnsbl },
545 { US"exec", D_exec },
546 { US"expand", D_expand },
547 { US"filter", D_filter },
548 { US"hints_lookup", D_hints_lookup },
549 { US"host_lookup", D_host_lookup },
550 { US"ident", D_ident },
551 { US"interface", D_interface },
552 { US"lists", D_lists },
553 { US"load", D_load },
554 { US"local_scan", D_local_scan },
555 { US"lookup", D_lookup },
556 { US"memory", D_memory },
557 { US"pid", D_pid },
558 { US"process_info", D_process_info },
559 { US"queue_run", D_queue_run },
560 { US"receive", D_receive },
561 { US"resolver", D_resolver },
562 { US"retry", D_retry },
563 { US"rewrite", D_rewrite },
564 { US"route", D_route },
565 { US"timestamp", D_timestamp },
566 { US"tls", D_tls },
567 { US"transport", D_transport },
568 { US"uid", D_uid },
569 { US"verify", D_verify }
570 };
571 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
572 unsigned int debug_selector = 0;
573 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
574 uschar *delay_warning_condition=
575 US"${if or {"
576 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
577 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
578 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
579 "} {no}{yes}}";
580 BOOL delivery_date_remove = TRUE;
581 uschar *deliver_address_data = NULL;
582 int deliver_datafile = -1;
583 const uschar *deliver_domain = NULL;
584 uschar *deliver_domain_data = NULL;
585 const uschar *deliver_domain_orig = NULL;
586 const uschar *deliver_domain_parent = NULL;
587 BOOL deliver_drop_privilege = FALSE;
588 BOOL deliver_firsttime = FALSE;
589 BOOL deliver_force = FALSE;
590 BOOL deliver_freeze = FALSE;
591 time_t deliver_frozen_at = 0;
592 uschar *deliver_home = NULL;
593 const uschar *deliver_host = NULL;
594 const uschar *deliver_host_address = NULL;
595 int deliver_host_port = 0;
596 uschar *deliver_in_buffer = NULL;
597 ino_t deliver_inode = 0;
598 uschar *deliver_localpart = NULL;
599 uschar *deliver_localpart_data = NULL;
600 uschar *deliver_localpart_orig = NULL;
601 uschar *deliver_localpart_parent = NULL;
602 uschar *deliver_localpart_prefix = NULL;
603 uschar *deliver_localpart_suffix = NULL;
604 BOOL deliver_force_thaw = FALSE;
605 BOOL deliver_manual_thaw = FALSE;
606 uschar *deliver_out_buffer = NULL;
607 int deliver_queue_load_max = -1;
608 address_item *deliver_recipients = NULL;
609 uschar *deliver_selectstring = NULL;
610 BOOL deliver_selectstring_regex = FALSE;
611 uschar *deliver_selectstring_sender = NULL;
612 BOOL deliver_selectstring_sender_regex = FALSE;
613 #ifdef WITH_OLD_DEMIME
614 int demime_errorlevel = 0;
615 int demime_ok = 0;
616 uschar *demime_reason = NULL;
617 #endif
618 BOOL disable_callout_flush = FALSE;
619 BOOL disable_delay_flush = FALSE;
620 #ifdef ENABLE_DISABLE_FSYNC
621 BOOL disable_fsync = FALSE;
622 #endif
623 BOOL disable_ipv6 = FALSE;
624 BOOL disable_logging = FALSE;
625
626 #ifndef DISABLE_DKIM
627 uschar *dkim_cur_signer = NULL;
628 uschar *dkim_signers = NULL;
629 uschar *dkim_signing_domain = NULL;
630 uschar *dkim_signing_selector = NULL;
631 uschar *dkim_verify_signers = US"$dkim_signers";
632 BOOL dkim_collect_input = FALSE;
633 BOOL dkim_disable_verify = FALSE;
634 #endif
635 #ifdef EXPERIMENTAL_DMARC
636 BOOL dmarc_has_been_checked = FALSE;
637 uschar *dmarc_ar_header = NULL;
638 uschar *dmarc_domain_policy = NULL;
639 uschar *dmarc_forensic_sender = NULL;
640 uschar *dmarc_history_file = NULL;
641 uschar *dmarc_status = NULL;
642 uschar *dmarc_status_text = NULL;
643 uschar *dmarc_tld_file = NULL;
644 uschar *dmarc_used_domain = NULL;
645 BOOL dmarc_disable_verify = FALSE;
646 BOOL dmarc_enable_forensic = FALSE;
647 #endif
648
649 uschar *dns_again_means_nonexist = NULL;
650 int dns_csa_search_limit = 5;
651 BOOL dns_csa_use_reverse = TRUE;
652 #ifdef EXPERIMENTAL_DANE
653 int dns_dane_ok = -1;
654 #endif
655 uschar *dns_ipv4_lookup = NULL;
656 int dns_retrans = 0;
657 int dns_retry = 0;
658 int dns_dnssec_ok = -1; /* <0 = not coerced */
659 int dns_use_edns0 = -1; /* <0 = not coerced */
660 uschar *dnslist_domain = NULL;
661 uschar *dnslist_matched = NULL;
662 uschar *dnslist_text = NULL;
663 uschar *dnslist_value = NULL;
664 tree_node *domainlist_anchor = NULL;
665 int domainlist_count = 0;
666 BOOL dont_deliver = FALSE;
667 BOOL dot_ends = TRUE;
668 BOOL drop_cr = FALSE; /* No longer used */
669 uschar *dsn_from = US DEFAULT_DSN_FROM;
670
671 BOOL enable_dollar_recipients = FALSE;
672 BOOL envelope_to_remove = TRUE;
673 int errno_quota = ERRNO_QUOTA;
674 uschar *errors_copy = NULL;
675 int error_handling = ERRORS_SENDER;
676 uschar *errors_reply_to = NULL;
677 int errors_sender_rc = EXIT_FAILURE;
678 #ifdef EXPERIMENTAL_EVENT
679 uschar *event_action = NULL; /* expansion for delivery events */
680 uschar *event_data = NULL; /* auxilary data variable for event */
681 int event_defer_errno = 0;
682 const uschar *event_name = NULL; /* event name variable */
683 #endif
684
685
686 gid_t exim_gid = EXIM_GID;
687 BOOL exim_gid_set = TRUE; /* This gid is always set */
688 uschar *exim_path = US BIN_DIRECTORY "/exim"
689 "\0<---------------Space to patch exim_path->";
690 uid_t exim_uid = EXIM_UID;
691 BOOL exim_uid_set = TRUE; /* This uid is always set */
692 int expand_forbid = 0;
693 int expand_nlength[EXPAND_MAXN+1];
694 int expand_nmax = -1;
695 uschar *expand_nstring[EXPAND_MAXN+1];
696 BOOL expand_string_forcedfail = FALSE;
697 uschar *expand_string_message;
698 BOOL extract_addresses_remove_arguments = TRUE;
699 uschar *extra_local_interfaces = NULL;
700
701 int fake_response = OK;
702 uschar *fake_response_text = US"Your message has been rejected but is "
703 "being kept for evaluation.\nIf it was a "
704 "legitimate message, it may still be "
705 "delivered to the target recipient(s).";
706 int filter_n[FILTER_VARIABLE_COUNT];
707 BOOL filter_running = FALSE;
708 int filter_sn[FILTER_VARIABLE_COUNT];
709 int filter_test = FTEST_NONE;
710 uschar *filter_test_sfile = NULL;
711 uschar *filter_test_ufile = NULL;
712 uschar *filter_thisaddress = NULL;
713 int finduser_retries = 0;
714 #ifdef WITH_OLD_DEMIME
715 uschar *found_extension = NULL;
716 #endif
717 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
718 uschar *freeze_tell = NULL;
719 uschar *freeze_tell_config = NULL;
720 uschar *fudged_queue_times = US"";
721
722 uschar *gecos_name = NULL;
723 uschar *gecos_pattern = NULL;
724 rewrite_rule *global_rewrite_rules = NULL;
725
726 uschar *headers_charset = US HEADERS_CHARSET;
727 int header_insert_maxlen = 64 * 1024;
728 header_line *header_last = NULL;
729 header_line *header_list = NULL;
730 int header_maxsize = HEADER_MAXSIZE;
731 int header_line_maxsize = 0;
732
733 header_name header_names[] = {
734 { US"bcc", 3, TRUE, htype_bcc },
735 { US"cc", 2, TRUE, htype_cc },
736 { US"date", 4, TRUE, htype_date },
737 { US"delivery-date", 13, FALSE, htype_delivery_date },
738 { US"envelope-to", 11, FALSE, htype_envelope_to },
739 { US"from", 4, TRUE, htype_from },
740 { US"message-id", 10, TRUE, htype_id },
741 { US"received", 8, FALSE, htype_received },
742 { US"reply-to", 8, FALSE, htype_reply_to },
743 { US"return-path", 11, FALSE, htype_return_path },
744 { US"sender", 6, TRUE, htype_sender },
745 { US"subject", 7, FALSE, htype_subject },
746 { US"to", 2, TRUE, htype_to }
747 };
748
749 int header_names_size = sizeof(header_names)/sizeof(header_name);
750
751 BOOL header_rewritten = FALSE;
752 uschar *helo_accept_junk_hosts = NULL;
753 uschar *helo_allow_chars = US"";
754 uschar *helo_lookup_domains = US"@ : @[]";
755 uschar *helo_try_verify_hosts = NULL;
756 BOOL helo_verified = FALSE;
757 BOOL helo_verify_failed = FALSE;
758 uschar *helo_verify_hosts = NULL;
759 const uschar *hex_digits = CUS"0123456789abcdef";
760 uschar *hold_domains = NULL;
761 BOOL host_checking = FALSE;
762 BOOL host_checking_callout = FALSE;
763 uschar *host_data = NULL;
764 BOOL host_find_failed_syntax= FALSE;
765 uschar *host_lookup = NULL;
766 BOOL host_lookup_deferred = FALSE;
767 BOOL host_lookup_failed = FALSE;
768 uschar *host_lookup_order = US"bydns:byaddr";
769 uschar *host_lookup_msg = US"";
770 int host_number = 0;
771 uschar *host_number_string = NULL;
772 uschar *host_reject_connection = NULL;
773 tree_node *hostlist_anchor = NULL;
774 int hostlist_count = 0;
775 uschar *hosts_treat_as_local = NULL;
776 uschar *hosts_connection_nolog = NULL;
777
778 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
779 BOOL ignore_fromline_local = FALSE;
780 uschar *ignore_fromline_hosts = NULL;
781 BOOL inetd_wait_mode = FALSE;
782 int inetd_wait_timeout = -1;
783 uschar *interface_address = NULL;
784 int interface_port = -1;
785 BOOL is_inetd = FALSE;
786 uschar *iterate_item = NULL;
787
788 int journal_fd = -1;
789
790 int keep_malformed = 4*24*60*60; /* 4 days */
791
792 uschar *eldap_dn = NULL;
793 int load_average = -2;
794 BOOL local_error_message = FALSE;
795 BOOL local_from_check = TRUE;
796 uschar *local_from_prefix = NULL;
797 uschar *local_from_suffix = NULL;
798
799 #if HAVE_IPV6
800 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
801 #else
802 uschar *local_interfaces = US"0.0.0.0";
803 #endif
804
805 uschar *local_scan_data = NULL;
806 int local_scan_timeout = 5*60;
807 BOOL local_sender_retain = FALSE;
808 gid_t local_user_gid = (gid_t)(-1);
809 uid_t local_user_uid = (uid_t)(-1);
810
811 tree_node *localpartlist_anchor= NULL;
812 int localpartlist_count = 0;
813 uschar *log_buffer = NULL;
814 unsigned int log_extra_selector = LX_default;
815 uschar *log_file_path = US LOG_FILE_PATH
816 "\0<--------------Space to patch log_file_path->";
817
818 /* Those log options with L_xxx identifiers have values less than 0x800000 and
819 are the ones that get put into log_write_selector. They can be used in calls to
820 log_write() to test for the bit. The options with LX_xxx identifiers have
821 values greater than 0x80000000 and are put into log_extra_selector (without the
822 top bit). They are never used in calls to log_write(), but are tested
823 independently. This separation became necessary when the number of log
824 selectors was getting close to filling a 32-bit word. */
825
826 /* Note that this list must be in alphabetical order. */
827
828 bit_table log_options[] = {
829 { US"8bitmime", LX_8bitmime },
830 { US"acl_warn_skipped", LX_acl_warn_skipped },
831 { US"address_rewrite", L_address_rewrite },
832 { US"all", L_all },
833 { US"all_parents", L_all_parents },
834 { US"arguments", LX_arguments },
835 { US"connection_reject", L_connection_reject },
836 { US"delay_delivery", L_delay_delivery },
837 { US"deliver_time", LX_deliver_time },
838 { US"delivery_size", LX_delivery_size },
839 { US"dnslist_defer", L_dnslist_defer },
840 { US"etrn", L_etrn },
841 { US"host_lookup_failed", L_host_lookup_failed },
842 { US"ident_timeout", LX_ident_timeout },
843 { US"incoming_interface", LX_incoming_interface },
844 { US"incoming_port", LX_incoming_port },
845 { US"lost_incoming_connection", L_lost_incoming_connection },
846 { US"outgoing_port", LX_outgoing_port },
847 { US"pid", LX_pid },
848 #ifdef EXPERIMENTAL_PROXY
849 { US"proxy", LX_proxy },
850 #endif
851 { US"queue_run", L_queue_run },
852 { US"queue_time", LX_queue_time },
853 { US"queue_time_overall", LX_queue_time_overall },
854 { US"received_recipients", LX_received_recipients },
855 { US"received_sender", LX_received_sender },
856 { US"rejected_header", LX_rejected_header },
857 { US"rejected_headers", LX_rejected_header },
858 { US"retry_defer", L_retry_defer },
859 { US"return_path_on_delivery", LX_return_path_on_delivery },
860 { US"sender_on_delivery", LX_sender_on_delivery },
861 { US"sender_verify_fail", LX_sender_verify_fail },
862 { US"size_reject", L_size_reject },
863 { US"skip_delivery", L_skip_delivery },
864 { US"smtp_confirmation", LX_smtp_confirmation },
865 { US"smtp_connection", L_smtp_connection },
866 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
867 { US"smtp_mailauth", LX_smtp_mailauth },
868 { US"smtp_no_mail", LX_smtp_no_mail },
869 { US"smtp_protocol_error", L_smtp_protocol_error },
870 { US"smtp_syntax_error", L_smtp_syntax_error },
871 { US"subject", LX_subject },
872 { US"tls_certificate_verified", LX_tls_certificate_verified },
873 { US"tls_cipher", LX_tls_cipher },
874 { US"tls_peerdn", LX_tls_peerdn },
875 { US"tls_sni", LX_tls_sni },
876 { US"unknown_in_list", LX_unknown_in_list }
877 };
878
879 int log_options_count = sizeof(log_options)/sizeof(bit_table);
880 int log_reject_target = 0;
881 uschar *log_selector_string = NULL;
882 FILE *log_stderr = NULL;
883 BOOL log_testing_mode = FALSE;
884 BOOL log_timezone = FALSE;
885 unsigned int log_write_selector= L_default;
886 uschar *login_sender_address = NULL;
887 uschar *lookup_dnssec_authenticated = NULL;
888 int lookup_open_max = 25;
889 uschar *lookup_value = NULL;
890
891 macro_item *macros = NULL;
892 uschar *mailstore_basename = NULL;
893 #ifdef WITH_CONTENT_SCAN
894 uschar *malware_name = NULL; /* Virus Name */
895 #endif
896 int max_received_linelength= 0;
897 int max_username_length = 0;
898 int message_age = 0;
899 uschar *message_body = NULL;
900 uschar *message_body_end = NULL;
901 BOOL message_body_newlines = FALSE;
902 int message_body_size = 0;
903 int message_body_visible = 500;
904 int message_ended = END_NOTSTARTED;
905 uschar *message_headers = NULL;
906 uschar *message_id;
907 uschar *message_id_domain = NULL;
908 uschar *message_id_text = NULL;
909 struct timeval message_id_tv = { 0, 0 };
910 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
911 uschar *message_id_external;
912 int message_linecount = 0;
913 BOOL message_logs = TRUE;
914 int message_size = 0;
915 uschar *message_size_limit = US"50M";
916 #ifdef EXPERIMENTAL_INTERNATIONAL
917 BOOL message_smtputf8 = FALSE;
918 #endif
919 uschar message_subdir[2] = { 0, 0 };
920 uschar *message_reference = NULL;
921
922 /* MIME ACL expandables */
923 #ifdef WITH_CONTENT_SCAN
924 int mime_anomaly_level = 0;
925 const uschar *mime_anomaly_text = NULL;
926 uschar *mime_boundary = NULL;
927 uschar *mime_charset = NULL;
928 uschar *mime_content_description = NULL;
929 uschar *mime_content_disposition = NULL;
930 uschar *mime_content_id = NULL;
931 unsigned int mime_content_size = 0;
932 uschar *mime_content_transfer_encoding = NULL;
933 uschar *mime_content_type = NULL;
934 uschar *mime_decoded_filename = NULL;
935 uschar *mime_filename = NULL;
936 int mime_is_multipart = 0;
937 int mime_is_coverletter = 0;
938 int mime_is_rfc822 = 0;
939 int mime_part_count = -1;
940 #endif
941
942 BOOL mua_wrapper = FALSE;
943
944 uid_t *never_users = NULL;
945 #ifdef WITH_CONTENT_SCAN
946 BOOL no_mbox_unspool = FALSE;
947 #endif
948 BOOL no_multiline_responses = FALSE;
949
950 uid_t original_euid;
951 gid_t originator_gid;
952 uschar *originator_login = NULL;
953 uschar *originator_name = NULL;
954 uid_t originator_uid;
955 uschar *override_local_interfaces = NULL;
956 uschar *override_pid_file_path = NULL;
957
958 BOOL parse_allow_group = FALSE;
959 BOOL parse_found_group = FALSE;
960 uschar *percent_hack_domains = NULL;
961 uschar *pid_file_path = US PID_FILE_PATH
962 "\0<--------------Space to patch pid_file_path->";
963 BOOL pipelining_enable = TRUE;
964 uschar *pipelining_advertise_hosts = US"*";
965 BOOL preserve_message_logs = FALSE;
966 uschar *primary_hostname = NULL;
967 BOOL print_topbitchars = FALSE;
968 uschar process_info[PROCESS_INFO_SIZE];
969 int process_info_len = 0;
970 uschar *process_log_path = NULL;
971 BOOL prod_requires_admin = TRUE;
972
973 #ifdef EXPERIMENTAL_PROXY
974 uschar *proxy_host_address = US"";
975 int proxy_host_port = 0;
976 uschar *proxy_required_hosts = US"";
977 BOOL proxy_session = FALSE;
978 BOOL proxy_session_failed = FALSE;
979 uschar *proxy_target_address = US"";
980 int proxy_target_port = 0;
981 #endif
982
983 uschar *prvscheck_address = NULL;
984 uschar *prvscheck_keynum = NULL;
985 uschar *prvscheck_result = NULL;
986
987
988 const uschar *qualify_domain_recipient = NULL;
989 uschar *qualify_domain_sender = NULL;
990 BOOL queue_2stage = FALSE;
991 uschar *queue_domains = NULL;
992 int queue_interval = -1;
993 BOOL queue_list_requires_admin = TRUE;
994 BOOL queue_only = FALSE;
995 uschar *queue_only_file = NULL;
996 int queue_only_load = -1;
997 BOOL queue_only_load_latch = TRUE;
998 BOOL queue_only_override = TRUE;
999 BOOL queue_only_policy = FALSE;
1000 BOOL queue_run_first_delivery = FALSE;
1001 BOOL queue_run_force = FALSE;
1002 BOOL queue_run_in_order = FALSE;
1003 BOOL queue_run_local = FALSE;
1004 int queue_run_max = 5;
1005 pid_t queue_run_pid = (pid_t)0;
1006 int queue_run_pipe = -1;
1007 BOOL queue_running = FALSE;
1008 BOOL queue_smtp = FALSE;
1009 uschar *queue_smtp_domains = NULL;
1010
1011 unsigned int random_seed = 0;
1012 tree_node *ratelimiters_cmd = NULL;
1013 tree_node *ratelimiters_conn = NULL;
1014 tree_node *ratelimiters_mail = NULL;
1015 uschar *raw_active_hostname = NULL;
1016 uschar *raw_sender = NULL;
1017 uschar **raw_recipients = NULL;
1018 int raw_recipients_count = 0;
1019
1020 int rcpt_count = 0;
1021 int rcpt_fail_count = 0;
1022 int rcpt_defer_count = 0;
1023 gid_t real_gid;
1024 uid_t real_uid;
1025 BOOL really_exim = TRUE;
1026 BOOL receive_call_bombout = FALSE;
1027 int receive_linecount = 0;
1028 int receive_messagecount = 0;
1029 int receive_timeout = 0;
1030 int received_count = 0;
1031 uschar *received_for = NULL;
1032
1033 /* This is the default text for Received headers generated by Exim. The
1034 date will be automatically added on the end. */
1035
1036 uschar *received_header_text = US
1037 "Received: "
1038 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1039 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1040 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1041 "by $primary_hostname "
1042 "${if def:received_protocol {with $received_protocol}} "
1043 #ifdef SUPPORT_TLS
1044 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1045 #endif
1046 "(Exim $version_number)\n\t"
1047 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1048 "id $message_exim_id"
1049 "${if def:received_for {\n\tfor $received_for}}"
1050 "\0<---------------Space to patch received_header_text->";
1051
1052 int received_headers_max = 30;
1053 uschar *received_protocol = NULL;
1054 int received_time = 0;
1055 uschar *recipient_data = NULL;
1056 uschar *recipient_unqualified_hosts = NULL;
1057 uschar *recipient_verify_failure = NULL;
1058 int recipients_count = 0;
1059 BOOL recipients_discarded = FALSE;
1060 recipient_item *recipients_list = NULL;
1061 int recipients_list_max = 0;
1062 int recipients_max = 0;
1063 BOOL recipients_max_reject = FALSE;
1064 const pcre *regex_AUTH = NULL;
1065 const pcre *regex_check_dns_names = NULL;
1066 const pcre *regex_From = NULL;
1067 const pcre *regex_IGNOREQUOTA = NULL;
1068 const pcre *regex_PIPELINING = NULL;
1069 const pcre *regex_SIZE = NULL;
1070 const pcre *regex_smtp_code = NULL;
1071 const pcre *regex_ismsgid = NULL;
1072 #ifdef WHITELIST_D_MACROS
1073 const pcre *regex_whitelisted_macro = NULL;
1074 #endif
1075 #ifdef WITH_CONTENT_SCAN
1076 uschar *regex_match_string = NULL;
1077 #endif
1078 int remote_delivery_count = 0;
1079 int remote_max_parallel = 2;
1080 uschar *remote_sort_domains = NULL;
1081 int retry_data_expire = 7*24*60*60;
1082 int retry_interval_max = 24*60*60;
1083 int retry_maximum_timeout = 0; /* set from retry config */
1084 retry_config *retries = NULL;
1085 uschar *return_path = NULL;
1086 BOOL return_path_remove = TRUE;
1087 int rewrite_existflags = 0;
1088 uschar *rfc1413_hosts = US"@[]";
1089 int rfc1413_query_timeout = 0;
1090 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1091 uid_t root_gid = ROOT_GID;
1092 uid_t root_uid = ROOT_UID;
1093
1094 router_instance *routers = NULL;
1095 router_instance router_defaults = {
1096 NULL, /* chain pointer */
1097 NULL, /* name */
1098 NULL, /* info */
1099 NULL, /* private options block pointer */
1100 NULL, /* driver name */
1101
1102 NULL, /* address_data */
1103 #ifdef EXPERIMENTAL_BRIGHTMAIL
1104 NULL, /* bmi_rule */
1105 #endif
1106 NULL, /* cannot_route_message */
1107 NULL, /* condition */
1108 NULL, /* current_directory */
1109 NULL, /* debug_string */
1110 NULL, /* domains */
1111 NULL, /* errors_to */
1112 NULL, /* expand_gid */
1113 NULL, /* expand_uid */
1114 NULL, /* expand_more */
1115 NULL, /* expand_unseen */
1116 NULL, /* extra_headers */
1117 NULL, /* fallback_hosts */
1118 NULL, /* home_directory */
1119 NULL, /* ignore_target_hosts */
1120 NULL, /* local_parts */
1121 NULL, /* pass_router_name */
1122 NULL, /* prefix */
1123 NULL, /* redirect_router_name */
1124 NULL, /* remove_headers */
1125 NULL, /* require_files */
1126 NULL, /* router_home_directory */
1127 US"freeze", /* self */
1128 NULL, /* senders */
1129 NULL, /* suffix */
1130 NULL, /* translate_ip_address */
1131 NULL, /* transport_name */
1132
1133 TRUE, /* address_test */
1134 #ifdef EXPERIMENTAL_BRIGHTMAIL
1135 FALSE, /* bmi_deliver_alternate */
1136 FALSE, /* bmi_deliver_default */
1137 FALSE, /* bmi_dont_deliver */
1138 #endif
1139 TRUE, /* expn */
1140 FALSE, /* caseful_local_part */
1141 FALSE, /* check_local_user */
1142 FALSE, /* disable_logging */
1143 FALSE, /* fail_verify_recipient */
1144 FALSE, /* fail_verify_sender */
1145 FALSE, /* gid_set */
1146 FALSE, /* initgroups */
1147 TRUE_UNSET, /* log_as_local */
1148 TRUE, /* more */
1149 FALSE, /* pass_on_timeout */
1150 FALSE, /* prefix_optional */
1151 TRUE, /* repeat_use */
1152 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1153 FALSE, /* same_domain_copy_routing */
1154 FALSE, /* self_rewrite */
1155 FALSE, /* suffix_optional */
1156 FALSE, /* verify_only */
1157 TRUE, /* verify_recipient */
1158 TRUE, /* verify_sender */
1159 FALSE, /* uid_set */
1160 FALSE, /* unseen */
1161 FALSE, /* dsn_lasthop */
1162
1163 self_freeze, /* self_code */
1164 (uid_t)(-1), /* uid */
1165 (gid_t)(-1), /* gid */
1166
1167 NULL, /* fallback_hostlist */
1168 NULL, /* transport instance */
1169 NULL, /* pass_router */
1170 NULL /* redirect_router */
1171 };
1172
1173 uschar *router_name = NULL;
1174
1175 ip_address_item *running_interfaces = NULL;
1176 BOOL running_in_test_harness = FALSE;
1177
1178 /* This is a weird one. The following string gets patched in the binary by the
1179 script that sets up a copy of Exim for running in the test harness. It seems
1180 that compilers are now clever, and share constant strings if they can.
1181 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1182 make use of the end of this string in order to save space. So the patching then
1183 wrecks this. We defeat this optimization by adding some additional characters
1184 onto the end of the string. */
1185
1186 uschar *running_status = US">>>running<<<" "\0EXTRA";
1187
1188 int runrc = 0;
1189
1190 uschar *search_error_message = NULL;
1191 BOOL search_find_defer = FALSE;
1192 uschar *self_hostname = NULL;
1193 uschar *sender_address = NULL;
1194 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1195 uschar *sender_address_data = NULL;
1196 BOOL sender_address_forced = FALSE;
1197 uschar *sender_address_unrewritten = NULL;
1198 uschar *sender_data = NULL;
1199 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1200 uschar *sender_fullhost = NULL;
1201 uschar *sender_helo_name = NULL;
1202 uschar **sender_host_aliases = &no_aliases;
1203 uschar *sender_host_address = NULL;
1204 uschar *sender_host_authenticated = NULL;
1205 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1206 BOOL sender_host_dnssec = FALSE;
1207 uschar *sender_host_name = NULL;
1208 int sender_host_port = 0;
1209 BOOL sender_host_notsocket = FALSE;
1210 BOOL sender_host_unknown = FALSE;
1211 uschar *sender_ident = NULL;
1212 BOOL sender_local = FALSE;
1213 BOOL sender_name_forced = FALSE;
1214 uschar *sender_rate = NULL;
1215 uschar *sender_rate_limit = NULL;
1216 uschar *sender_rate_period = NULL;
1217 uschar *sender_rcvhost = NULL;
1218 BOOL sender_set_untrusted = FALSE;
1219 uschar *sender_unqualified_hosts = NULL;
1220 uschar *sender_verify_failure = NULL;
1221 address_item *sender_verified_list = NULL;
1222 address_item *sender_verified_failed = NULL;
1223 int sender_verified_rc = -1;
1224 BOOL sender_verified_responded = FALSE;
1225 uschar *sending_ip_address = NULL;
1226 int sending_port = -1;
1227 SIGNAL_BOOL sigalrm_seen = FALSE;
1228 uschar **sighup_argv = NULL;
1229 int smtp_accept_count = 0;
1230 BOOL smtp_accept_keepalive = TRUE;
1231 int smtp_accept_max = 20;
1232 int smtp_accept_max_nonmail= 10;
1233 uschar *smtp_accept_max_nonmail_hosts = US"*";
1234 int smtp_accept_max_per_connection = 1000;
1235 uschar *smtp_accept_max_per_host = NULL;
1236 int smtp_accept_queue = 0;
1237 int smtp_accept_queue_per_connection = 10;
1238 int smtp_accept_reserve = 0;
1239 uschar *smtp_active_hostname = NULL;
1240 BOOL smtp_authenticated = FALSE;
1241 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1242 "Exim $version_number $tod_full"
1243 "\0<---------------Space to patch smtp_banner->";
1244 BOOL smtp_batched_input = FALSE;
1245 BOOL smtp_check_spool_space = TRUE;
1246 int smtp_ch_index = 0;
1247 uschar *smtp_cmd_argument = NULL;
1248 uschar *smtp_cmd_buffer = NULL;
1249 time_t smtp_connection_start = 0;
1250 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1251 int smtp_connect_backlog = 20;
1252 double smtp_delay_mail = 0.0;
1253 double smtp_delay_rcpt = 0.0;
1254 BOOL smtp_enforce_sync = TRUE;
1255 FILE *smtp_in = NULL;
1256 BOOL smtp_input = FALSE;
1257 int smtp_load_reserve = -1;
1258 int smtp_mailcmd_count = 0;
1259 FILE *smtp_out = NULL;
1260 uschar *smtp_etrn_command = NULL;
1261 BOOL smtp_etrn_serialize = TRUE;
1262 int smtp_max_synprot_errors= 3;
1263 int smtp_max_unknown_commands = 3;
1264 uschar *smtp_notquit_reason = NULL;
1265 uschar *smtp_ratelimit_hosts = NULL;
1266 uschar *smtp_ratelimit_mail = NULL;
1267 uschar *smtp_ratelimit_rcpt = NULL;
1268 uschar *smtp_read_error = US"";
1269 int smtp_receive_timeout = 5*60;
1270 uschar *smtp_receive_timeout_s = NULL;
1271 uschar *smtp_reserve_hosts = NULL;
1272 BOOL smtp_return_error_details = FALSE;
1273 int smtp_rlm_base = 0;
1274 double smtp_rlm_factor = 0.0;
1275 int smtp_rlm_limit = 0;
1276 int smtp_rlm_threshold = INT_MAX;
1277 int smtp_rlr_base = 0;
1278 double smtp_rlr_factor = 0.0;
1279 int smtp_rlr_limit = 0;
1280 int smtp_rlr_threshold = INT_MAX;
1281 BOOL smtp_use_pipelining = FALSE;
1282 BOOL smtp_use_size = FALSE;
1283 #ifdef EXPERIMENTAL_INTERNATIONAL
1284 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1285 #endif
1286
1287 #ifdef WITH_CONTENT_SCAN
1288 uschar *spamd_address = US"127.0.0.1 783";
1289 uschar *spam_bar = NULL;
1290 uschar *spam_report = NULL;
1291 uschar *spam_action = NULL;
1292 uschar *spam_score = NULL;
1293 uschar *spam_score_int = NULL;
1294 #endif
1295 #ifdef EXPERIMENTAL_SPF
1296 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1297 uschar *spf_header_comment = NULL;
1298 uschar *spf_received = NULL;
1299 uschar *spf_result = NULL;
1300 uschar *spf_smtp_comment = NULL;
1301 #endif
1302
1303 BOOL split_spool_directory = FALSE;
1304 uschar *spool_directory = US SPOOL_DIRECTORY
1305 "\0<--------------Space to patch spool_directory->";
1306 #ifdef EXPERIMENTAL_SRS
1307 uschar *srs_config = NULL;
1308 uschar *srs_db_address = NULL;
1309 uschar *srs_db_key = NULL;
1310 int srs_hashlength = 6;
1311 int srs_hashmin = -1;
1312 int srs_maxage = 31;
1313 uschar *srs_orig_recipient = NULL;
1314 uschar *srs_orig_sender = NULL;
1315 uschar *srs_recipient = NULL;
1316 uschar *srs_secrets = NULL;
1317 uschar *srs_status = NULL;
1318 BOOL srs_usehash = TRUE;
1319 BOOL srs_usetimestamp = TRUE;
1320 #endif
1321 BOOL strict_acl_vars = FALSE;
1322 int string_datestamp_offset= -1;
1323 int string_datestamp_length= 0;
1324 int string_datestamp_type = -1;
1325 BOOL strip_excess_angle_brackets = FALSE;
1326 BOOL strip_trailing_dot = FALSE;
1327 uschar *submission_domain = NULL;
1328 BOOL submission_mode = FALSE;
1329 uschar *submission_name = NULL;
1330 BOOL suppress_local_fixups = FALSE;
1331 BOOL suppress_local_fixups_default = FALSE;
1332 BOOL synchronous_delivery = FALSE;
1333 BOOL syslog_duplication = TRUE;
1334 int syslog_facility = LOG_MAIL;
1335 uschar *syslog_processname = US"exim";
1336 BOOL syslog_timestamp = TRUE;
1337 uschar *system_filter = NULL;
1338
1339 uschar *system_filter_directory_transport = NULL;
1340 uschar *system_filter_file_transport = NULL;
1341 uschar *system_filter_pipe_transport = NULL;
1342 uschar *system_filter_reply_transport = NULL;
1343
1344 gid_t system_filter_gid = 0;
1345 BOOL system_filter_gid_set = FALSE;
1346 uid_t system_filter_uid = (uid_t)-1;
1347 BOOL system_filter_uid_set = FALSE;
1348 BOOL system_filtering = FALSE;
1349
1350 BOOL tcp_nodelay = TRUE;
1351 #ifdef USE_TCP_WRAPPERS
1352 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1353 #endif
1354 int test_harness_load_avg = 0;
1355 int thismessage_size_limit = 0;
1356 int timeout_frozen_after = 0;
1357 BOOL timestamps_utc = FALSE;
1358
1359 transport_instance *transports = NULL;
1360
1361 transport_instance transport_defaults = {
1362 NULL, /* chain pointer */
1363 NULL, /* name */
1364 NULL, /* info */
1365 NULL, /* private options block pointer */
1366 NULL, /* driver name */
1367 NULL, /* setup entry point */
1368 1, /* batch_max */
1369 NULL, /* batch_id */
1370 NULL, /* home_dir */
1371 NULL, /* current_dir */
1372 NULL, /* expand-multi-domain */
1373 TRUE, /* multi-domain */
1374 FALSE, /* overrides_hosts */
1375 100, /* max_addresses */
1376 500, /* connection_max_messages */
1377 FALSE, /* deliver_as_creator */
1378 FALSE, /* disable_logging */
1379 FALSE, /* initgroups */
1380 FALSE, /* uid_set */
1381 FALSE, /* gid_set */
1382 (uid_t)(-1), /* uid */
1383 (gid_t)(-1), /* gid */
1384 NULL, /* expand_uid */
1385 NULL, /* expand_gid */
1386 NULL, /* warn_message */
1387 NULL, /* shadow */
1388 NULL, /* shadow_condition */
1389 NULL, /* filter_command */
1390 NULL, /* add_headers */
1391 NULL, /* remove_headers */
1392 NULL, /* return_path */
1393 NULL, /* debug_string */
1394 NULL, /* message_size_limit */
1395 NULL, /* headers_rewrite */
1396 NULL, /* rewrite_rules */
1397 0, /* rewrite_existflags */
1398 300, /* filter_timeout */
1399 FALSE, /* body_only */
1400 FALSE, /* delivery_date_add */
1401 FALSE, /* envelope_to_add */
1402 FALSE, /* headers_only */
1403 FALSE, /* rcpt_include_affixes */
1404 FALSE, /* return_path_add */
1405 FALSE, /* return_output */
1406 FALSE, /* return_fail_output */
1407 FALSE, /* log_output */
1408 FALSE, /* log_fail_output */
1409 FALSE, /* log_defer_output */
1410 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1411 1 nor 0 so can detect unset */
1412 #ifdef EXPERIMENTAL_EVENT
1413 ,NULL /* event_action */
1414 #endif
1415 };
1416
1417 int transport_count;
1418 uschar *transport_name = NULL;
1419 int transport_newlines;
1420 const uschar **transport_filter_argv = NULL;
1421 int transport_filter_timeout;
1422 BOOL transport_filter_timed_out = FALSE;
1423 int transport_write_timeout= 0;
1424
1425 tree_node *tree_dns_fails = NULL;
1426 tree_node *tree_duplicates = NULL;
1427 tree_node *tree_nonrecipients = NULL;
1428 tree_node *tree_unusable = NULL;
1429
1430 BOOL trusted_caller = FALSE;
1431 BOOL trusted_config = TRUE;
1432 gid_t *trusted_groups = NULL;
1433 uid_t *trusted_users = NULL;
1434 uschar *timezone_string = US TIMEZONE_DEFAULT;
1435
1436 uschar *unknown_login = NULL;
1437 uschar *unknown_username = NULL;
1438 uschar *untrusted_set_sender = NULL;
1439
1440 /* A regex for matching a "From_" line in an incoming message, in the form
1441
1442 From ph10 Fri Jan 5 12:35 GMT 1996
1443
1444 which the "mail" commands send to the MTA (undocumented, of course), or in
1445 the form
1446
1447 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1448
1449 which is apparently used by some UUCPs, despite it not being in RFC 976.
1450 Because of variations in time formats, just match up to the minutes. That
1451 should be sufficient. Examples have been seen of time fields like 12:1:03,
1452 so just require one digit for hours and minutes. The weekday is also absent
1453 in some forms. */
1454
1455 uschar *uucp_from_pattern = US
1456 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1457 "(?:" /* Non-extracting bracket */
1458 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1459 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1460 ")" /* End alternation */
1461 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1462
1463 uschar *uucp_from_sender = US"$1";
1464
1465 uschar *verify_mode = NULL;
1466 uschar *version_copyright =
1467 US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1468 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1469 uschar *version_date = US"?";
1470 uschar *version_cnumber = US"????";
1471 uschar *version_string = US"?";
1472
1473 uschar *warn_message_file = NULL;
1474 int warning_count = 0;
1475 uschar *warnmsg_delay = NULL;
1476 uschar *warnmsg_recipients = NULL;
1477 BOOL write_rejectlog = TRUE;
1478
1479
1480 /* End of globals.c */
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