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Fix Proxy Protocol v2 handling
[exim.git] / src / src / globals.c
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2013 */
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 NULL, /* tls_cipher */
107 FALSE,/* tls_on_connect */
108 NULL, /* tls_on_connect_ports */
109 NULL, /* tls_peerdn */
110 NULL /* tls_sni */
111 };
112 tls_support tls_out = {
113 -1, /* tls_active */
114 0, /* tls_bits */
115 FALSE,/* tls_certificate_verified */
116 NULL, /* tls_cipher */
117 FALSE,/* tls_on_connect */
118 NULL, /* tls_on_connect_ports */
119 NULL, /* tls_peerdn */
120 NULL /* tls_sni */
121 };
122
123
124 #ifdef SUPPORT_TLS
125 BOOL gnutls_compat_mode = FALSE;
126 BOOL gnutls_allow_auto_pkcs11 = FALSE;
127 uschar *gnutls_require_mac = NULL;
128 uschar *gnutls_require_kx = NULL;
129 uschar *gnutls_require_proto = NULL;
130 uschar *openssl_options = NULL;
131 const pcre *regex_STARTTLS = NULL;
132 uschar *tls_advertise_hosts = NULL; /* This is deliberate */
133 uschar *tls_certificate = NULL;
134 uschar *tls_crl = NULL;
135 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
136 that's the interop problem which has been observed: GnuTLS suggesting a higher
137 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
138 int tls_dh_max_bits = 2236;
139 uschar *tls_dhparam = NULL;
140 #if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS)
141 uschar *tls_ocsp_file = NULL;
142 #endif
143 BOOL tls_offered = FALSE;
144 uschar *tls_privatekey = NULL;
145 BOOL tls_remember_esmtp = FALSE;
146 uschar *tls_require_ciphers = NULL;
147 uschar *tls_try_verify_hosts = NULL;
148 uschar *tls_verify_certificates= NULL;
149 uschar *tls_verify_hosts = NULL;
150 #endif
151
152 #ifdef EXPERIMENTAL_PRDR
153 /* Per Recipient Data Response variables */
154 BOOL prdr_enable = FALSE;
155 BOOL prdr_requested = FALSE;
156 const pcre *regex_PRDR = NULL;
157 #endif
158
159 /* Input-reading functions for messages, so we can use special ones for
160 incoming TCP/IP. The defaults use stdin. We never need these for any
161 stand-alone tests. */
162
163 #ifndef STAND_ALONE
164 int (*receive_getc)(void) = stdin_getc;
165 int (*receive_ungetc)(int) = stdin_ungetc;
166 int (*receive_feof)(void) = stdin_feof;
167 int (*receive_ferror)(void) = stdin_ferror;
168 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
169 #endif
170
171
172 /* List of per-address expansion variables for clearing and saving/restoring
173 when verifying one address while routing/verifying another. We have to have
174 the size explicit, because it is referenced from more than one module. */
175
176 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
177 &deliver_address_data,
178 &deliver_domain,
179 &deliver_domain_data,
180 &deliver_domain_orig,
181 &deliver_domain_parent,
182 &deliver_localpart,
183 &deliver_localpart_data,
184 &deliver_localpart_orig,
185 &deliver_localpart_parent,
186 &deliver_localpart_prefix,
187 &deliver_localpart_suffix,
188 (uschar **)(&deliver_recipients),
189 &deliver_host,
190 &deliver_home,
191 &address_file,
192 &address_pipe,
193 &self_hostname,
194 NULL };
195
196 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
197
198 /* General global variables */
199
200 header_line *acl_added_headers = NULL;
201 tree_node *acl_anchor = NULL;
202 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
203 NULL, NULL, NULL, NULL};
204 int acl_narg = 0;
205
206 uschar *acl_not_smtp = NULL;
207 #ifdef WITH_CONTENT_SCAN
208 uschar *acl_not_smtp_mime = NULL;
209 #endif
210 uschar *acl_not_smtp_start = NULL;
211 uschar *acl_removed_headers = NULL;
212 uschar *acl_smtp_auth = NULL;
213 uschar *acl_smtp_connect = NULL;
214 uschar *acl_smtp_data = NULL;
215 #ifdef EXPERIMENTAL_PRDR
216 uschar *acl_smtp_data_prdr = NULL;
217 #endif
218 #ifndef DISABLE_DKIM
219 uschar *acl_smtp_dkim = NULL;
220 #endif
221 uschar *acl_smtp_etrn = NULL;
222 uschar *acl_smtp_expn = NULL;
223 uschar *acl_smtp_helo = NULL;
224 uschar *acl_smtp_mail = NULL;
225 uschar *acl_smtp_mailauth = NULL;
226 #ifdef WITH_CONTENT_SCAN
227 uschar *acl_smtp_mime = NULL;
228 #endif
229 uschar *acl_smtp_notquit = NULL;
230 uschar *acl_smtp_predata = NULL;
231 uschar *acl_smtp_quit = NULL;
232 uschar *acl_smtp_rcpt = NULL;
233 uschar *acl_smtp_starttls = NULL;
234 uschar *acl_smtp_vrfy = NULL;
235
236 BOOL acl_temp_details = FALSE;
237 tree_node *acl_var_c = NULL;
238 tree_node *acl_var_m = NULL;
239 uschar *acl_verify_message = NULL;
240 string_item *acl_warn_logged = NULL;
241
242 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
243 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
244
245 uschar *acl_wherenames[] = { US"RCPT",
246 US"MAIL",
247 US"PREDATA",
248 US"MIME",
249 US"DKIM",
250 US"DATA",
251 #ifdef EXPERIMENTAL_PRDR
252 US"PRDR",
253 #endif
254 US"non-SMTP",
255 US"AUTH",
256 US"connection",
257 US"ETRN",
258 US"EXPN",
259 US"EHLO or HELO",
260 US"MAILAUTH",
261 US"non-SMTP-start",
262 US"NOTQUIT",
263 US"QUIT",
264 US"STARTTLS",
265 US"VRFY",
266 US"delivery",
267 US"unknown"
268 };
269
270 uschar *acl_wherecodes[] = { US"550", /* RCPT */
271 US"550", /* MAIL */
272 US"550", /* PREDATA */
273 US"550", /* MIME */
274 US"550", /* DKIM */
275 US"550", /* DATA */
276 #ifdef EXPERIMENTAL_PRDR
277 US"550", /* RCPT PRDR */
278 #endif
279 US"0", /* not SMTP; not relevant */
280 US"503", /* AUTH */
281 US"550", /* connect */
282 US"458", /* ETRN */
283 US"550", /* EXPN */
284 US"550", /* HELO/EHLO */
285 US"0", /* MAILAUTH; not relevant */
286 US"0", /* not SMTP; not relevant */
287 US"0", /* NOTQUIT; not relevant */
288 US"0", /* QUIT; not relevant */
289 US"550", /* STARTTLS */
290 US"252", /* VRFY */
291 US"0", /* delivery; not relevant */
292 US"0" /* unknown; not relevant */
293 };
294
295 BOOL active_local_from_check = FALSE;
296 BOOL active_local_sender_retain = FALSE;
297 int body_8bitmime = 0;
298 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
299 address_item *addr_duplicate = NULL;
300
301 address_item address_defaults = {
302 NULL, /* next */
303 NULL, /* parent */
304 NULL, /* first */
305 NULL, /* dupof */
306 NULL, /* start_router */
307 NULL, /* router */
308 NULL, /* transport */
309 NULL, /* host_list */
310 NULL, /* host_used */
311 NULL, /* fallback_hosts */
312 NULL, /* reply */
313 NULL, /* retries */
314 NULL, /* address */
315 NULL, /* unique */
316 NULL, /* cc_local_part */
317 NULL, /* lc_local_part */
318 NULL, /* local_part */
319 NULL, /* prefix */
320 NULL, /* suffix */
321 NULL, /* domain */
322 NULL, /* address_retry_key */
323 NULL, /* domain_retry_key */
324 NULL, /* current_dir */
325 NULL, /* home_dir */
326 NULL, /* message */
327 NULL, /* user_message */
328 NULL, /* onetime_parent */
329 NULL, /* pipe_expandn */
330 NULL, /* return_filename */
331 NULL, /* self_hostname */
332 NULL, /* shadow_message */
333 #ifdef SUPPORT_TLS
334 NULL, /* cipher */
335 NULL, /* peerdn */
336 #endif
337 NULL, /* authenticator */
338 NULL, /* auth_id */
339 NULL, /* auth_sndr */
340 (uid_t)(-1), /* uid */
341 (gid_t)(-1), /* gid */
342 0, /* flags */
343 { 0 }, /* domain_cache - any larger array should be zeroed */
344 { 0 }, /* localpart_cache - ditto */
345 -1, /* mode */
346 0, /* more_errno */
347 ERRNO_UNKNOWNERROR, /* basic_errno */
348 0, /* child_count */
349 -1, /* return_file */
350 SPECIAL_NONE, /* special_action */
351 DEFER, /* transport_return */
352 { /* fields that are propagated to children */
353 NULL, /* address_data */
354 NULL, /* domain_data */
355 NULL, /* localpart_data */
356 NULL, /* errors_address */
357 NULL, /* extra_headers */
358 NULL, /* remove_headers */
359 #ifdef EXPERIMENTAL_SRS
360 NULL, /* srs_sender */
361 #endif
362 }
363 };
364
365 uschar *address_file = NULL;
366 uschar *address_pipe = NULL;
367 BOOL address_test_mode = FALSE;
368 tree_node *addresslist_anchor = NULL;
369 int addresslist_count = 0;
370 gid_t *admin_groups = NULL;
371 BOOL admin_user = FALSE;
372 BOOL allow_auth_unadvertised= FALSE;
373 BOOL allow_domain_literals = FALSE;
374 BOOL allow_mx_to_ip = FALSE;
375 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
376 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
377 BOOL allow_utf8_domains = FALSE;
378 uschar *authenticated_fail_id = NULL;
379 uschar *authenticated_id = NULL;
380 uschar *authenticated_sender = NULL;
381 BOOL authentication_failed = FALSE;
382 auth_instance *auths = NULL;
383 uschar *auth_advertise_hosts = US"*";
384 auth_instance auth_defaults = {
385 NULL, /* chain pointer */
386 NULL, /* name */
387 NULL, /* info */
388 NULL, /* private options block pointer */
389 NULL, /* driver_name */
390 NULL, /* advertise_condition */
391 NULL, /* client_condition */
392 NULL, /* public_name */
393 NULL, /* set_id */
394 NULL, /* set_client_id */
395 NULL, /* server_mail_auth_condition */
396 NULL, /* server_debug_string */
397 NULL, /* server_condition */
398 FALSE, /* client */
399 FALSE, /* server */
400 FALSE /* advertised */
401 };
402
403 uschar *auth_defer_msg = US"reason not recorded";
404 uschar *auth_defer_user_msg = US"";
405 uschar *auth_vars[AUTH_VARS];
406 int auto_thaw = 0;
407 #ifdef WITH_CONTENT_SCAN
408 BOOL av_failed = FALSE;
409 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
410 #endif
411
412 BOOL background_daemon = TRUE;
413
414 #if BASE_62 == 62
415 uschar *base62_chars=
416 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
417 #else
418 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
419 #endif
420
421 uschar *bi_command = NULL;
422 uschar *big_buffer = NULL;
423 int big_buffer_size = BIG_BUFFER_SIZE;
424 #ifdef EXPERIMENTAL_BRIGHTMAIL
425 uschar *bmi_alt_location = NULL;
426 uschar *bmi_base64_tracker_verdict = NULL;
427 uschar *bmi_base64_verdict = NULL;
428 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
429 int bmi_deliver = 1;
430 int bmi_run = 0;
431 uschar *bmi_verdicts = NULL;
432 #endif
433 int body_linecount = 0;
434 int body_zerocount = 0;
435 uschar *bounce_message_file = NULL;
436 uschar *bounce_message_text = NULL;
437 uschar *bounce_recipient = NULL;
438 BOOL bounce_return_body = TRUE;
439 BOOL bounce_return_message = TRUE;
440 int bounce_return_size_limit = 100*1024;
441 uschar *bounce_sender_authentication = NULL;
442 int bsmtp_transaction_linecount = 0;
443
444 int callout_cache_domain_positive_expire = 7*24*60*60;
445 int callout_cache_domain_negative_expire = 3*60*60;
446 int callout_cache_positive_expire = 24*60*60;
447 int callout_cache_negative_expire = 2*60*60;
448 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
449 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
450 int check_log_inodes = 0;
451 int check_log_space = 0;
452 BOOL check_rfc2047_length = TRUE;
453 int check_spool_inodes = 0;
454 int check_spool_space = 0;
455 uschar *client_authenticator = NULL;
456 uschar *client_authenticated_id = NULL;
457 uschar *client_authenticated_sender = NULL;
458 int clmacro_count = 0;
459 uschar *clmacros[MAX_CLMACROS];
460 BOOL config_changed = FALSE;
461 FILE *config_file = NULL;
462 uschar *config_filename = NULL;
463 int config_lineno = 0;
464 #ifdef CONFIGURE_GROUP
465 gid_t config_gid = CONFIGURE_GROUP;
466 #endif
467 uschar *config_main_filelist = US CONFIGURE_FILE
468 "\0<-----------Space to patch configure_filename->";
469 uschar *config_main_filename = NULL;
470
471 #ifdef CONFIGURE_OWNER
472 uid_t config_uid = CONFIGURE_OWNER;
473 #endif
474
475 int connection_max_messages= -1;
476 uschar *continue_hostname = NULL;
477 uschar *continue_host_address = NULL;
478 BOOL continue_more = FALSE;
479 int continue_sequence = 1;
480 uschar *continue_transport = NULL;
481
482 uschar *csa_status = NULL;
483 BOOL cutthrough_delivery = FALSE;
484 int cutthrough_fd = -1;
485
486 BOOL daemon_listen = FALSE;
487 uschar *daemon_smtp_port = US"smtp";
488 int daemon_startup_retries = 9;
489 int daemon_startup_sleep = 30;
490
491 #ifdef EXPERIMENTAL_DCC
492 BOOL dcc_direct_add_header = FALSE;
493 uschar *dcc_header = NULL;
494 uschar *dcc_result = NULL;
495 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
496 uschar *dccifd_options = US"header";
497 #endif
498
499 BOOL debug_daemon = FALSE;
500 int debug_fd = -1;
501 FILE *debug_file = NULL;
502 bit_table debug_options[] = {
503 { US"acl", D_acl },
504 { US"all", D_all },
505 { US"auth", D_auth },
506 { US"deliver", D_deliver },
507 { US"dns", D_dns },
508 { US"dnsbl", D_dnsbl },
509 { US"exec", D_exec },
510 { US"expand", D_expand },
511 { US"filter", D_filter },
512 { US"hints_lookup", D_hints_lookup },
513 { US"host_lookup", D_host_lookup },
514 { US"ident", D_ident },
515 { US"interface", D_interface },
516 { US"lists", D_lists },
517 { US"load", D_load },
518 { US"local_scan", D_local_scan },
519 { US"lookup", D_lookup },
520 { US"memory", D_memory },
521 { US"pid", D_pid },
522 { US"process_info", D_process_info },
523 { US"queue_run", D_queue_run },
524 { US"receive", D_receive },
525 { US"resolver", D_resolver },
526 { US"retry", D_retry },
527 { US"rewrite", D_rewrite },
528 { US"route", D_route },
529 { US"timestamp", D_timestamp },
530 { US"tls", D_tls },
531 { US"transport", D_transport },
532 { US"uid", D_uid },
533 { US"verify", D_verify }
534 };
535 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
536 unsigned int debug_selector = 0;
537 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
538 uschar *delay_warning_condition=
539 US"${if or {"
540 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
541 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
542 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
543 "} {no}{yes}}";
544 BOOL delivery_date_remove = TRUE;
545 uschar *deliver_address_data = NULL;
546 int deliver_datafile = -1;
547 uschar *deliver_domain = NULL;
548 uschar *deliver_domain_data = NULL;
549 uschar *deliver_domain_orig = NULL;
550 uschar *deliver_domain_parent = NULL;
551 BOOL deliver_drop_privilege = FALSE;
552 BOOL deliver_firsttime = FALSE;
553 BOOL deliver_force = FALSE;
554 BOOL deliver_freeze = FALSE;
555 int deliver_frozen_at = 0;
556 uschar *deliver_home = NULL;
557 uschar *deliver_host = NULL;
558 uschar *deliver_host_address = NULL;
559 uschar *deliver_in_buffer = NULL;
560 ino_t deliver_inode = 0;
561 uschar *deliver_localpart = NULL;
562 uschar *deliver_localpart_data = NULL;
563 uschar *deliver_localpart_orig = NULL;
564 uschar *deliver_localpart_parent = NULL;
565 uschar *deliver_localpart_prefix = NULL;
566 uschar *deliver_localpart_suffix = NULL;
567 BOOL deliver_force_thaw = FALSE;
568 BOOL deliver_manual_thaw = FALSE;
569 uschar *deliver_out_buffer = NULL;
570 int deliver_queue_load_max = -1;
571 address_item *deliver_recipients = NULL;
572 uschar *deliver_selectstring = NULL;
573 BOOL deliver_selectstring_regex = FALSE;
574 uschar *deliver_selectstring_sender = NULL;
575 BOOL deliver_selectstring_sender_regex = FALSE;
576 #ifdef WITH_OLD_DEMIME
577 int demime_errorlevel = 0;
578 int demime_ok = 0;
579 uschar *demime_reason = NULL;
580 #endif
581 BOOL disable_callout_flush = FALSE;
582 BOOL disable_delay_flush = FALSE;
583 #ifdef ENABLE_DISABLE_FSYNC
584 BOOL disable_fsync = FALSE;
585 #endif
586 BOOL disable_ipv6 = FALSE;
587 BOOL disable_logging = FALSE;
588
589 #ifndef DISABLE_DKIM
590 uschar *dkim_cur_signer = NULL;
591 uschar *dkim_signers = NULL;
592 uschar *dkim_signing_domain = NULL;
593 uschar *dkim_signing_selector = NULL;
594 uschar *dkim_verify_signers = US"$dkim_signers";
595 BOOL dkim_collect_input = FALSE;
596 BOOL dkim_disable_verify = FALSE;
597 #endif
598 #ifdef EXPERIMENTAL_DMARC
599 BOOL dmarc_has_been_checked = FALSE;
600 uschar *dmarc_ar_header = NULL;
601 uschar *dmarc_domain_policy = NULL;
602 uschar *dmarc_forensic_sender = NULL;
603 uschar *dmarc_history_file = NULL;
604 uschar *dmarc_status = NULL;
605 uschar *dmarc_status_text = NULL;
606 uschar *dmarc_tld_file = NULL;
607 uschar *dmarc_used_domain = NULL;
608 BOOL dmarc_disable_verify = FALSE;
609 BOOL dmarc_enable_forensic = FALSE;
610 #endif
611
612 uschar *dns_again_means_nonexist = NULL;
613 int dns_csa_search_limit = 5;
614 BOOL dns_csa_use_reverse = TRUE;
615 uschar *dns_ipv4_lookup = NULL;
616 int dns_retrans = 0;
617 int dns_retry = 0;
618 int dns_dnssec_ok = -1; /* <0 = not coerced */
619 int dns_use_edns0 = -1; /* <0 = not coerced */
620 uschar *dnslist_domain = NULL;
621 uschar *dnslist_matched = NULL;
622 uschar *dnslist_text = NULL;
623 uschar *dnslist_value = NULL;
624 tree_node *domainlist_anchor = NULL;
625 int domainlist_count = 0;
626 BOOL dont_deliver = FALSE;
627 BOOL dot_ends = TRUE;
628 BOOL drop_cr = FALSE; /* No longer used */
629 uschar *dsn_from = US DEFAULT_DSN_FROM;
630
631 BOOL enable_dollar_recipients = FALSE;
632 BOOL envelope_to_remove = TRUE;
633 int errno_quota = ERRNO_QUOTA;
634 uschar *errors_copy = NULL;
635 int error_handling = ERRORS_SENDER;
636 uschar *errors_reply_to = NULL;
637 int errors_sender_rc = EXIT_FAILURE;
638
639 gid_t exim_gid = EXIM_GID;
640 BOOL exim_gid_set = TRUE; /* This gid is always set */
641 uschar *exim_path = US BIN_DIRECTORY "/exim"
642 "\0<---------------Space to patch exim_path->";
643 uid_t exim_uid = EXIM_UID;
644 BOOL exim_uid_set = TRUE; /* This uid is always set */
645 int expand_forbid = 0;
646 int expand_nlength[EXPAND_MAXN+1];
647 int expand_nmax = -1;
648 uschar *expand_nstring[EXPAND_MAXN+1];
649 BOOL expand_string_forcedfail = FALSE;
650 uschar *expand_string_message;
651 BOOL extract_addresses_remove_arguments = TRUE;
652 uschar *extra_local_interfaces = NULL;
653
654 int fake_response = OK;
655 uschar *fake_response_text = US"Your message has been rejected but is "
656 "being kept for evaluation.\nIf it was a "
657 "legitimate message, it may still be "
658 "delivered to the target recipient(s).";
659 int filter_n[FILTER_VARIABLE_COUNT];
660 BOOL filter_running = FALSE;
661 int filter_sn[FILTER_VARIABLE_COUNT];
662 int filter_test = FTEST_NONE;
663 uschar *filter_test_sfile = NULL;
664 uschar *filter_test_ufile = NULL;
665 uschar *filter_thisaddress = NULL;
666 int finduser_retries = 0;
667 #ifdef WITH_OLD_DEMIME
668 uschar *found_extension = NULL;
669 #endif
670 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
671 uschar *freeze_tell = NULL;
672 uschar *freeze_tell_config = NULL;
673 uschar *fudged_queue_times = US"";
674
675 uschar *gecos_name = NULL;
676 uschar *gecos_pattern = NULL;
677 rewrite_rule *global_rewrite_rules = NULL;
678
679 uschar *headers_charset = US HEADERS_CHARSET;
680 int header_insert_maxlen = 64 * 1024;
681 header_line *header_last = NULL;
682 header_line *header_list = NULL;
683 int header_maxsize = HEADER_MAXSIZE;
684 int header_line_maxsize = 0;
685
686 header_name header_names[] = {
687 { US"bcc", 3, TRUE, htype_bcc },
688 { US"cc", 2, TRUE, htype_cc },
689 { US"date", 4, TRUE, htype_date },
690 { US"delivery-date", 13, FALSE, htype_delivery_date },
691 { US"envelope-to", 11, FALSE, htype_envelope_to },
692 { US"from", 4, TRUE, htype_from },
693 { US"message-id", 10, TRUE, htype_id },
694 { US"received", 8, FALSE, htype_received },
695 { US"reply-to", 8, FALSE, htype_reply_to },
696 { US"return-path", 11, FALSE, htype_return_path },
697 { US"sender", 6, TRUE, htype_sender },
698 { US"subject", 7, FALSE, htype_subject },
699 { US"to", 2, TRUE, htype_to }
700 };
701
702 int header_names_size = sizeof(header_names)/sizeof(header_name);
703
704 BOOL header_rewritten = FALSE;
705 uschar *helo_accept_junk_hosts = NULL;
706 uschar *helo_allow_chars = US"";
707 uschar *helo_lookup_domains = US"@ : @[]";
708 uschar *helo_try_verify_hosts = NULL;
709 BOOL helo_verified = FALSE;
710 BOOL helo_verify_failed = FALSE;
711 uschar *helo_verify_hosts = NULL;
712 const uschar *hex_digits = CUS"0123456789abcdef";
713 uschar *hold_domains = NULL;
714 BOOL host_checking = FALSE;
715 BOOL host_checking_callout = FALSE;
716 uschar *host_data = NULL;
717 BOOL host_find_failed_syntax= FALSE;
718 uschar *host_lookup = NULL;
719 BOOL host_lookup_deferred = FALSE;
720 BOOL host_lookup_failed = FALSE;
721 uschar *host_lookup_order = US"bydns:byaddr";
722 uschar *host_lookup_msg = US"";
723 int host_number = 0;
724 uschar *host_number_string = NULL;
725 uschar *host_reject_connection = NULL;
726 tree_node *hostlist_anchor = NULL;
727 int hostlist_count = 0;
728 uschar *hosts_treat_as_local = NULL;
729 uschar *hosts_connection_nolog = NULL;
730
731 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
732 BOOL ignore_fromline_local = FALSE;
733 uschar *ignore_fromline_hosts = NULL;
734 BOOL inetd_wait_mode = FALSE;
735 int inetd_wait_timeout = -1;
736 uschar *interface_address = NULL;
737 int interface_port = -1;
738 BOOL is_inetd = FALSE;
739 uschar *iterate_item = NULL;
740
741 int journal_fd = -1;
742
743 int keep_malformed = 4*24*60*60; /* 4 days */
744
745 uschar *eldap_dn = NULL;
746 int load_average = -2;
747 BOOL local_error_message = FALSE;
748 BOOL local_from_check = TRUE;
749 uschar *local_from_prefix = NULL;
750 uschar *local_from_suffix = NULL;
751
752 #if HAVE_IPV6
753 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
754 #else
755 uschar *local_interfaces = US"0.0.0.0";
756 #endif
757
758 uschar *local_scan_data = NULL;
759 int local_scan_timeout = 5*60;
760 BOOL local_sender_retain = FALSE;
761 gid_t local_user_gid = (gid_t)(-1);
762 uid_t local_user_uid = (uid_t)(-1);
763
764 tree_node *localpartlist_anchor= NULL;
765 int localpartlist_count = 0;
766 uschar *log_buffer = NULL;
767 unsigned int log_extra_selector = LX_default;
768 uschar *log_file_path = US LOG_FILE_PATH
769 "\0<--------------Space to patch log_file_path->";
770
771 /* Those log options with L_xxx identifiers have values less than 0x800000 and
772 are the ones that get put into log_write_selector. They can be used in calls to
773 log_write() to test for the bit. The options with LX_xxx identifiers have
774 values greater than 0x80000000 and are put into log_extra_selector (without the
775 top bit). They are never used in calls to log_write(), but are tested
776 independently. This separation became necessary when the number of log
777 selectors was getting close to filling a 32-bit word. */
778
779 /* Note that this list must be in alphabetical order. */
780
781 bit_table log_options[] = {
782 { US"8bitmime", LX_8bitmime },
783 { US"acl_warn_skipped", LX_acl_warn_skipped },
784 { US"address_rewrite", L_address_rewrite },
785 { US"all", L_all },
786 { US"all_parents", L_all_parents },
787 { US"arguments", LX_arguments },
788 { US"connection_reject", L_connection_reject },
789 { US"delay_delivery", L_delay_delivery },
790 { US"deliver_time", LX_deliver_time },
791 { US"delivery_size", LX_delivery_size },
792 { US"dnslist_defer", L_dnslist_defer },
793 { US"etrn", L_etrn },
794 { US"host_lookup_failed", L_host_lookup_failed },
795 { US"ident_timeout", LX_ident_timeout },
796 { US"incoming_interface", LX_incoming_interface },
797 { US"incoming_port", LX_incoming_port },
798 { US"lost_incoming_connection", L_lost_incoming_connection },
799 { US"outgoing_port", LX_outgoing_port },
800 { US"pid", LX_pid },
801 #ifdef EXPERIMENTAL_PROXY
802 { US"proxy", LX_proxy },
803 #endif
804 { US"queue_run", L_queue_run },
805 { US"queue_time", LX_queue_time },
806 { US"queue_time_overall", LX_queue_time_overall },
807 { US"received_recipients", LX_received_recipients },
808 { US"received_sender", LX_received_sender },
809 { US"rejected_header", LX_rejected_header },
810 { US"rejected_headers", LX_rejected_header },
811 { US"retry_defer", L_retry_defer },
812 { US"return_path_on_delivery", LX_return_path_on_delivery },
813 { US"sender_on_delivery", LX_sender_on_delivery },
814 { US"sender_verify_fail", LX_sender_verify_fail },
815 { US"size_reject", L_size_reject },
816 { US"skip_delivery", L_skip_delivery },
817 { US"smtp_confirmation", LX_smtp_confirmation },
818 { US"smtp_connection", L_smtp_connection },
819 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
820 { US"smtp_mailauth", LX_smtp_mailauth },
821 { US"smtp_no_mail", LX_smtp_no_mail },
822 { US"smtp_protocol_error", L_smtp_protocol_error },
823 { US"smtp_syntax_error", L_smtp_syntax_error },
824 { US"subject", LX_subject },
825 { US"tls_certificate_verified", LX_tls_certificate_verified },
826 { US"tls_cipher", LX_tls_cipher },
827 { US"tls_peerdn", LX_tls_peerdn },
828 { US"tls_sni", LX_tls_sni },
829 { US"unknown_in_list", LX_unknown_in_list }
830 };
831
832 int log_options_count = sizeof(log_options)/sizeof(bit_table);
833 int log_reject_target = 0;
834 uschar *log_selector_string = NULL;
835 FILE *log_stderr = NULL;
836 BOOL log_testing_mode = FALSE;
837 BOOL log_timezone = FALSE;
838 unsigned int log_write_selector= L_default;
839 uschar *login_sender_address = NULL;
840 int lookup_open_max = 25;
841 uschar *lookup_value = NULL;
842
843 macro_item *macros = NULL;
844 uschar *mailstore_basename = NULL;
845 #ifdef WITH_CONTENT_SCAN
846 uschar *malware_name = NULL; /* Virus Name */
847 #endif
848 int max_received_linelength= 0;
849 int max_username_length = 0;
850 int message_age = 0;
851 uschar *message_body = NULL;
852 uschar *message_body_end = NULL;
853 BOOL message_body_newlines = FALSE;
854 int message_body_size = 0;
855 int message_body_visible = 500;
856 int message_ended = END_NOTSTARTED;
857 uschar *message_headers = NULL;
858 uschar *message_id;
859 uschar *message_id_domain = NULL;
860 uschar *message_id_text = NULL;
861 struct timeval message_id_tv = { 0, 0 };
862 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
863 uschar *message_id_external;
864 int message_linecount = 0;
865 BOOL message_logs = TRUE;
866 int message_size = 0;
867 uschar *message_size_limit = US"50M";
868 uschar message_subdir[2] = { 0, 0 };
869 uschar *message_reference = NULL;
870
871 /* MIME ACL expandables */
872 #ifdef WITH_CONTENT_SCAN
873 int mime_anomaly_level = 0;
874 const uschar *mime_anomaly_text = NULL;
875 uschar *mime_boundary = NULL;
876 uschar *mime_charset = NULL;
877 uschar *mime_content_description = NULL;
878 uschar *mime_content_disposition = NULL;
879 uschar *mime_content_id = NULL;
880 unsigned int mime_content_size = 0;
881 uschar *mime_content_transfer_encoding = NULL;
882 uschar *mime_content_type = NULL;
883 uschar *mime_decoded_filename = NULL;
884 uschar *mime_filename = NULL;
885 int mime_is_multipart = 0;
886 int mime_is_coverletter = 0;
887 int mime_is_rfc822 = 0;
888 int mime_part_count = -1;
889 #endif
890
891 BOOL mua_wrapper = FALSE;
892
893 uid_t *never_users = NULL;
894 #ifdef WITH_CONTENT_SCAN
895 BOOL no_mbox_unspool = FALSE;
896 #endif
897 BOOL no_multiline_responses = FALSE;
898
899 uid_t original_euid;
900 gid_t originator_gid;
901 uschar *originator_login = NULL;
902 uschar *originator_name = NULL;
903 uid_t originator_uid;
904 uschar *override_local_interfaces = NULL;
905 uschar *override_pid_file_path = NULL;
906
907 BOOL parse_allow_group = FALSE;
908 BOOL parse_found_group = FALSE;
909 uschar *percent_hack_domains = NULL;
910 uschar *pid_file_path = US PID_FILE_PATH
911 "\0<--------------Space to patch pid_file_path->";
912 BOOL pipelining_enable = TRUE;
913 uschar *pipelining_advertise_hosts = US"*";
914 BOOL preserve_message_logs = FALSE;
915 uschar *primary_hostname = NULL;
916 BOOL print_topbitchars = FALSE;
917 uschar process_info[PROCESS_INFO_SIZE];
918 int process_info_len = 0;
919 uschar *process_log_path = NULL;
920 BOOL prod_requires_admin = TRUE;
921
922 #ifdef EXPERIMENTAL_PROXY
923 uschar *proxy_host_address = US"";
924 int proxy_host_port = 0;
925 uschar *proxy_required_hosts = US"";
926 BOOL proxy_session = FALSE;
927 BOOL proxy_session_failed = FALSE;
928 uschar *proxy_target_address = US"";
929 int proxy_target_port = 0;
930 #endif
931
932 uschar *prvscheck_address = NULL;
933 uschar *prvscheck_keynum = NULL;
934 uschar *prvscheck_result = NULL;
935
936
937 uschar *qualify_domain_recipient = NULL;
938 uschar *qualify_domain_sender = NULL;
939 BOOL queue_2stage = FALSE;
940 uschar *queue_domains = NULL;
941 int queue_interval = -1;
942 BOOL queue_list_requires_admin = TRUE;
943 BOOL queue_only = FALSE;
944 uschar *queue_only_file = NULL;
945 int queue_only_load = -1;
946 BOOL queue_only_load_latch = TRUE;
947 BOOL queue_only_override = TRUE;
948 BOOL queue_only_policy = FALSE;
949 BOOL queue_run_first_delivery = FALSE;
950 BOOL queue_run_force = FALSE;
951 BOOL queue_run_in_order = FALSE;
952 BOOL queue_run_local = FALSE;
953 int queue_run_max = 5;
954 pid_t queue_run_pid = (pid_t)0;
955 int queue_run_pipe = -1;
956 BOOL queue_running = FALSE;
957 BOOL queue_smtp = FALSE;
958 uschar *queue_smtp_domains = NULL;
959
960 unsigned int random_seed = 0;
961 tree_node *ratelimiters_cmd = NULL;
962 tree_node *ratelimiters_conn = NULL;
963 tree_node *ratelimiters_mail = NULL;
964 uschar *raw_active_hostname = NULL;
965 uschar *raw_sender = NULL;
966 uschar **raw_recipients = NULL;
967 int raw_recipients_count = 0;
968
969 int rcpt_count = 0;
970 int rcpt_fail_count = 0;
971 int rcpt_defer_count = 0;
972 gid_t real_gid;
973 uid_t real_uid;
974 BOOL really_exim = TRUE;
975 BOOL receive_call_bombout = FALSE;
976 int receive_linecount = 0;
977 int receive_messagecount = 0;
978 int receive_timeout = 0;
979 int received_count = 0;
980 uschar *received_for = NULL;
981
982 /* This is the default text for Received headers generated by Exim. The
983 date will be automatically added on the end. */
984
985 uschar *received_header_text = US
986 "Received: "
987 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
988 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
989 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
990 "by $primary_hostname "
991 "${if def:received_protocol {with $received_protocol}} "
992 #ifdef SUPPORT_TLS
993 "${if def:tls_cipher {($tls_cipher)\n\t}}"
994 #endif
995 "(Exim $version_number)\n\t"
996 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
997 "id $message_exim_id"
998 "${if def:received_for {\n\tfor $received_for}}"
999 "\0<---------------Space to patch received_header_text->";
1000
1001 int received_headers_max = 30;
1002 uschar *received_protocol = NULL;
1003 int received_time = 0;
1004 uschar *recipient_data = NULL;
1005 uschar *recipient_unqualified_hosts = NULL;
1006 uschar *recipient_verify_failure = NULL;
1007 int recipients_count = 0;
1008 BOOL recipients_discarded = FALSE;
1009 recipient_item *recipients_list = NULL;
1010 int recipients_list_max = 0;
1011 int recipients_max = 0;
1012 BOOL recipients_max_reject = FALSE;
1013 const pcre *regex_AUTH = NULL;
1014 const pcre *regex_check_dns_names = NULL;
1015 const pcre *regex_From = NULL;
1016 const pcre *regex_IGNOREQUOTA = NULL;
1017 const pcre *regex_PIPELINING = NULL;
1018 const pcre *regex_SIZE = NULL;
1019 const pcre *regex_smtp_code = NULL;
1020 const pcre *regex_ismsgid = NULL;
1021 #ifdef WHITELIST_D_MACROS
1022 const pcre *regex_whitelisted_macro = NULL;
1023 #endif
1024 #ifdef WITH_CONTENT_SCAN
1025 uschar *regex_match_string = NULL;
1026 #endif
1027 int remote_delivery_count = 0;
1028 int remote_max_parallel = 2;
1029 uschar *remote_sort_domains = NULL;
1030 int retry_data_expire = 7*24*60*60;
1031 int retry_interval_max = 24*60*60;
1032 int retry_maximum_timeout = 0; /* set from retry config */
1033 retry_config *retries = NULL;
1034 uschar *return_path = NULL;
1035 BOOL return_path_remove = TRUE;
1036 int rewrite_existflags = 0;
1037 uschar *rfc1413_hosts = US"*";
1038 int rfc1413_query_timeout = 5;
1039 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1040 uid_t root_gid = ROOT_GID;
1041 uid_t root_uid = ROOT_UID;
1042
1043 router_instance *routers = NULL;
1044 router_instance router_defaults = {
1045 NULL, /* chain pointer */
1046 NULL, /* name */
1047 NULL, /* info */
1048 NULL, /* private options block pointer */
1049 NULL, /* driver name */
1050
1051 NULL, /* address_data */
1052 #ifdef EXPERIMENTAL_BRIGHTMAIL
1053 NULL, /* bmi_rule */
1054 #endif
1055 NULL, /* cannot_route_message */
1056 NULL, /* condition */
1057 NULL, /* current_directory */
1058 NULL, /* debug_string */
1059 NULL, /* domains */
1060 NULL, /* errors_to */
1061 NULL, /* expand_gid */
1062 NULL, /* expand_uid */
1063 NULL, /* expand_more */
1064 NULL, /* expand_unseen */
1065 NULL, /* extra_headers */
1066 NULL, /* fallback_hosts */
1067 NULL, /* home_directory */
1068 NULL, /* ignore_target_hosts */
1069 NULL, /* local_parts */
1070 NULL, /* pass_router_name */
1071 NULL, /* prefix */
1072 NULL, /* redirect_router_name */
1073 NULL, /* remove_headers */
1074 NULL, /* require_files */
1075 NULL, /* router_home_directory */
1076 US"freeze", /* self */
1077 NULL, /* senders */
1078 NULL, /* suffix */
1079 NULL, /* translate_ip_address */
1080 NULL, /* transport_name */
1081
1082 TRUE, /* address_test */
1083 #ifdef EXPERIMENTAL_BRIGHTMAIL
1084 FALSE, /* bmi_deliver_alternate */
1085 FALSE, /* bmi_deliver_default */
1086 FALSE, /* bmi_dont_deliver */
1087 #endif
1088 TRUE, /* expn */
1089 FALSE, /* caseful_local_part */
1090 FALSE, /* check_local_user */
1091 FALSE, /* disable_logging */
1092 FALSE, /* fail_verify_recipient */
1093 FALSE, /* fail_verify_sender */
1094 FALSE, /* gid_set */
1095 FALSE, /* initgroups */
1096 TRUE_UNSET, /* log_as_local */
1097 TRUE, /* more */
1098 FALSE, /* pass_on_timeout */
1099 FALSE, /* prefix_optional */
1100 TRUE, /* repeat_use */
1101 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1102 FALSE, /* same_domain_copy_routing */
1103 FALSE, /* self_rewrite */
1104 FALSE, /* suffix_optional */
1105 FALSE, /* verify_only */
1106 TRUE, /* verify_recipient */
1107 TRUE, /* verify_sender */
1108 FALSE, /* uid_set */
1109 FALSE, /* unseen */
1110
1111 self_freeze, /* self_code */
1112 (uid_t)(-1), /* uid */
1113 (gid_t)(-1), /* gid */
1114
1115 NULL, /* fallback_hostlist */
1116 NULL, /* transport instance */
1117 NULL, /* pass_router */
1118 NULL /* redirect_router */
1119 };
1120
1121 uschar *router_name = NULL;
1122
1123 ip_address_item *running_interfaces = NULL;
1124 BOOL running_in_test_harness = FALSE;
1125
1126 /* This is a weird one. The following string gets patched in the binary by the
1127 script that sets up a copy of Exim for running in the test harness. It seems
1128 that compilers are now clever, and share constant strings if they can.
1129 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1130 make use of the end of this string in order to save space. So the patching then
1131 wrecks this. We defeat this optimization by adding some additional characters
1132 onto the end of the string. */
1133
1134 uschar *running_status = US">>>running<<<" "\0EXTRA";
1135
1136 int runrc = 0;
1137
1138 uschar *search_error_message = NULL;
1139 BOOL search_find_defer = FALSE;
1140 uschar *self_hostname = NULL;
1141 uschar *sender_address = NULL;
1142 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1143 uschar *sender_address_data = NULL;
1144 BOOL sender_address_forced = FALSE;
1145 uschar *sender_address_unrewritten = NULL;
1146 uschar *sender_data = NULL;
1147 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1148 uschar *sender_fullhost = NULL;
1149 uschar *sender_helo_name = NULL;
1150 uschar **sender_host_aliases = &no_aliases;
1151 uschar *sender_host_address = NULL;
1152 uschar *sender_host_authenticated = NULL;
1153 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1154 BOOL sender_host_dnssec = FALSE;
1155 uschar *sender_host_name = NULL;
1156 int sender_host_port = 0;
1157 BOOL sender_host_notsocket = FALSE;
1158 BOOL sender_host_unknown = FALSE;
1159 uschar *sender_ident = NULL;
1160 BOOL sender_local = FALSE;
1161 BOOL sender_name_forced = FALSE;
1162 uschar *sender_rate = NULL;
1163 uschar *sender_rate_limit = NULL;
1164 uschar *sender_rate_period = NULL;
1165 uschar *sender_rcvhost = NULL;
1166 BOOL sender_set_untrusted = FALSE;
1167 uschar *sender_unqualified_hosts = NULL;
1168 uschar *sender_verify_failure = NULL;
1169 address_item *sender_verified_list = NULL;
1170 address_item *sender_verified_failed = NULL;
1171 int sender_verified_rc = -1;
1172 BOOL sender_verified_responded = FALSE;
1173 uschar *sending_ip_address = NULL;
1174 int sending_port = -1;
1175 SIGNAL_BOOL sigalrm_seen = FALSE;
1176 uschar **sighup_argv = NULL;
1177 int smtp_accept_count = 0;
1178 BOOL smtp_accept_keepalive = TRUE;
1179 int smtp_accept_max = 20;
1180 int smtp_accept_max_nonmail= 10;
1181 uschar *smtp_accept_max_nonmail_hosts = US"*";
1182 int smtp_accept_max_per_connection = 1000;
1183 uschar *smtp_accept_max_per_host = NULL;
1184 int smtp_accept_queue = 0;
1185 int smtp_accept_queue_per_connection = 10;
1186 int smtp_accept_reserve = 0;
1187 uschar *smtp_active_hostname = NULL;
1188 BOOL smtp_authenticated = FALSE;
1189 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1190 "Exim $version_number $tod_full"
1191 "\0<---------------Space to patch smtp_banner->";
1192 BOOL smtp_batched_input = FALSE;
1193 BOOL smtp_check_spool_space = TRUE;
1194 int smtp_ch_index = 0;
1195 uschar *smtp_cmd_argument = NULL;
1196 uschar *smtp_cmd_buffer = NULL;
1197 time_t smtp_connection_start = 0;
1198 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1199 int smtp_connect_backlog = 20;
1200 double smtp_delay_mail = 0.0;
1201 double smtp_delay_rcpt = 0.0;
1202 BOOL smtp_enforce_sync = TRUE;
1203 FILE *smtp_in = NULL;
1204 BOOL smtp_input = FALSE;
1205 int smtp_load_reserve = -1;
1206 int smtp_mailcmd_count = 0;
1207 FILE *smtp_out = NULL;
1208 uschar *smtp_etrn_command = NULL;
1209 BOOL smtp_etrn_serialize = TRUE;
1210 int smtp_max_synprot_errors= 3;
1211 int smtp_max_unknown_commands = 3;
1212 uschar *smtp_notquit_reason = NULL;
1213 uschar *smtp_ratelimit_hosts = NULL;
1214 uschar *smtp_ratelimit_mail = NULL;
1215 uschar *smtp_ratelimit_rcpt = NULL;
1216 uschar *smtp_read_error = US"";
1217 int smtp_receive_timeout = 5*60;
1218 uschar *smtp_reserve_hosts = NULL;
1219 BOOL smtp_return_error_details = FALSE;
1220 int smtp_rlm_base = 0;
1221 double smtp_rlm_factor = 0.0;
1222 int smtp_rlm_limit = 0;
1223 int smtp_rlm_threshold = INT_MAX;
1224 int smtp_rlr_base = 0;
1225 double smtp_rlr_factor = 0.0;
1226 int smtp_rlr_limit = 0;
1227 int smtp_rlr_threshold = INT_MAX;
1228 BOOL smtp_use_pipelining = FALSE;
1229 BOOL smtp_use_size = FALSE;
1230
1231 #ifdef WITH_CONTENT_SCAN
1232 uschar *spamd_address = US"127.0.0.1 783";
1233 uschar *spam_bar = NULL;
1234 uschar *spam_report = NULL;
1235 uschar *spam_score = NULL;
1236 uschar *spam_score_int = NULL;
1237 #endif
1238 #ifdef EXPERIMENTAL_SPF
1239 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1240 uschar *spf_header_comment = NULL;
1241 uschar *spf_received = NULL;
1242 uschar *spf_result = NULL;
1243 uschar *spf_smtp_comment = NULL;
1244 #endif
1245
1246 BOOL split_spool_directory = FALSE;
1247 uschar *spool_directory = US SPOOL_DIRECTORY
1248 "\0<--------------Space to patch spool_directory->";
1249 #ifdef EXPERIMENTAL_SRS
1250 uschar *srs_config = NULL;
1251 uschar *srs_db_address = NULL;
1252 uschar *srs_db_key = NULL;
1253 int srs_hashlength = 6;
1254 int srs_hashmin = -1;
1255 int srs_maxage = 31;
1256 uschar *srs_orig_recipient = NULL;
1257 uschar *srs_orig_sender = NULL;
1258 uschar *srs_recipient = NULL;
1259 uschar *srs_secrets = NULL;
1260 uschar *srs_status = NULL;
1261 BOOL srs_usehash = TRUE;
1262 BOOL srs_usetimestamp = TRUE;
1263 #endif
1264 BOOL strict_acl_vars = FALSE;
1265 int string_datestamp_offset= -1;
1266 int string_datestamp_length= 0;
1267 int string_datestamp_type = -1;
1268 BOOL strip_excess_angle_brackets = FALSE;
1269 BOOL strip_trailing_dot = FALSE;
1270 uschar *submission_domain = NULL;
1271 BOOL submission_mode = FALSE;
1272 uschar *submission_name = NULL;
1273 BOOL suppress_local_fixups = FALSE;
1274 BOOL suppress_local_fixups_default = FALSE;
1275 BOOL synchronous_delivery = FALSE;
1276 BOOL syslog_duplication = TRUE;
1277 int syslog_facility = LOG_MAIL;
1278 uschar *syslog_processname = US"exim";
1279 BOOL syslog_timestamp = TRUE;
1280 uschar *system_filter = NULL;
1281
1282 uschar *system_filter_directory_transport = NULL;
1283 uschar *system_filter_file_transport = NULL;
1284 uschar *system_filter_pipe_transport = NULL;
1285 uschar *system_filter_reply_transport = NULL;
1286
1287 gid_t system_filter_gid = 0;
1288 BOOL system_filter_gid_set = FALSE;
1289 uid_t system_filter_uid = (uid_t)-1;
1290 BOOL system_filter_uid_set = FALSE;
1291 BOOL system_filtering = FALSE;
1292
1293 BOOL tcp_nodelay = TRUE;
1294 #ifdef USE_TCP_WRAPPERS
1295 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1296 #endif
1297 int test_harness_load_avg = 0;
1298 int thismessage_size_limit = 0;
1299 int timeout_frozen_after = 0;
1300 BOOL timestamps_utc = FALSE;
1301
1302 #ifdef EXPERIMENTAL_TPDA
1303 int tpda_defer_errno = 0;
1304 uschar *tpda_defer_errstr = NULL;
1305 uschar *tpda_delivery_ip = NULL;
1306 int tpda_delivery_port = 0;
1307 uschar *tpda_delivery_fqdn = NULL;
1308 uschar *tpda_delivery_local_part= NULL;
1309 uschar *tpda_delivery_domain = NULL;
1310 uschar *tpda_delivery_confirmation = NULL;
1311 #endif
1312
1313 transport_instance *transports = NULL;
1314
1315 transport_instance transport_defaults = {
1316 NULL, /* chain pointer */
1317 NULL, /* name */
1318 NULL, /* info */
1319 NULL, /* private options block pointer */
1320 NULL, /* driver name */
1321 NULL, /* setup entry point */
1322 1, /* batch_max */
1323 NULL, /* batch_id */
1324 NULL, /* home_dir */
1325 NULL, /* current_dir */
1326 TRUE, /* multi-domain */
1327 FALSE, /* overrides_hosts */
1328 100, /* max_addresses */
1329 500, /* connection_max_messages */
1330 FALSE, /* deliver_as_creator */
1331 FALSE, /* disable_logging */
1332 FALSE, /* initgroups */
1333 FALSE, /* uid_set */
1334 FALSE, /* gid_set */
1335 (uid_t)(-1), /* uid */
1336 (gid_t)(-1), /* gid */
1337 NULL, /* expand_uid */
1338 NULL, /* expand_gid */
1339 NULL, /* warn_message */
1340 NULL, /* shadow */
1341 NULL, /* shadow_condition */
1342 NULL, /* filter_command */
1343 NULL, /* add_headers */
1344 NULL, /* remove_headers */
1345 NULL, /* return_path */
1346 NULL, /* debug_string */
1347 NULL, /* message_size_limit */
1348 NULL, /* headers_rewrite */
1349 NULL, /* rewrite_rules */
1350 0, /* rewrite_existflags */
1351 300, /* filter_timeout */
1352 FALSE, /* body_only */
1353 FALSE, /* delivery_date_add */
1354 FALSE, /* envelope_to_add */
1355 FALSE, /* headers_only */
1356 FALSE, /* rcpt_include_affixes */
1357 FALSE, /* return_path_add */
1358 FALSE, /* return_output */
1359 FALSE, /* return_fail_output */
1360 FALSE, /* log_output */
1361 FALSE, /* log_fail_output */
1362 FALSE, /* log_defer_output */
1363 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1364 1 nor 0 so can detect unset */
1365 };
1366
1367 int transport_count;
1368 uschar *transport_name = NULL;
1369 int transport_newlines;
1370 uschar **transport_filter_argv = NULL;
1371 int transport_filter_timeout;
1372 BOOL transport_filter_timed_out = FALSE;
1373 int transport_write_timeout= 0;
1374
1375 tree_node *tree_dns_fails = NULL;
1376 tree_node *tree_duplicates = NULL;
1377 tree_node *tree_nonrecipients = NULL;
1378 tree_node *tree_unusable = NULL;
1379
1380 BOOL trusted_caller = FALSE;
1381 BOOL trusted_config = TRUE;
1382 gid_t *trusted_groups = NULL;
1383 uid_t *trusted_users = NULL;
1384 uschar *timezone_string = US TIMEZONE_DEFAULT;
1385
1386 uschar *unknown_login = NULL;
1387 uschar *unknown_username = NULL;
1388 uschar *untrusted_set_sender = NULL;
1389
1390 /* A regex for matching a "From_" line in an incoming message, in the form
1391
1392 From ph10 Fri Jan 5 12:35 GMT 1996
1393
1394 which the "mail" commands send to the MTA (undocumented, of course), or in
1395 the form
1396
1397 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1398
1399 which is apparently used by some UUCPs, despite it not being in RFC 976.
1400 Because of variations in time formats, just match up to the minutes. That
1401 should be sufficient. Examples have been seen of time fields like 12:1:03,
1402 so just require one digit for hours and minutes. The weekday is also absent
1403 in some forms. */
1404
1405 uschar *uucp_from_pattern = US
1406 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1407 "(?:" /* Non-extracting bracket */
1408 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1409 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1410 ")" /* End alternation */
1411 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1412
1413 uschar *uucp_from_sender = US"$1";
1414
1415 uschar *warn_message_file = NULL;
1416 uschar *warnmsg_delay = NULL;
1417 uschar *warnmsg_recipients = NULL;
1418 BOOL write_rejectlog = TRUE;
1419
1420 uschar *version_copyright =
1421 US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1422 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1423 uschar *version_date = US"?";
1424 uschar *version_cnumber = US"????";
1425 uschar *version_string = US"?";
1426
1427 int warning_count = 0;
1428
1429 /* End of globals.c */
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