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DMARC: send forensic reports for reject & quarantine results, and "none" policy....
[exim.git] / src / src / globals.c
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1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
5/* Copyright (c) University of Cambridge 1995 - 2016 */
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
9that they are easy to find. */
10
11#include "exim.h"
12
13
14/* Generic options for auths, all of which live inside auth_instance
15data blocks and hence have the opt_public flag set. */
16
17optionlist 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
38int optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
39
40/* An empty host aliases list. */
41
42uschar *no_aliases = NULL;
43
44
45/* For comments on these variables, see globals.h. I'm too idle to
46duplicate them here... */
47
48#ifdef EXIM_PERL
49uschar *opt_perl_startup = NULL;
50BOOL opt_perl_at_start = FALSE;
51BOOL opt_perl_started = FALSE;
52BOOL opt_perl_taintmode = FALSE;
53#endif
54
55#ifdef EXPAND_DLFUNC
56tree_node *dlobj_anchor = NULL;
57#endif
58
59#ifdef LOOKUP_IBASE
60uschar *ibase_servers = NULL;
61#endif
62
63#ifdef LOOKUP_LDAP
64uschar *eldap_ca_cert_dir = NULL;
65uschar *eldap_ca_cert_file = NULL;
66uschar *eldap_cert_file = NULL;
67uschar *eldap_cert_key = NULL;
68uschar *eldap_cipher_suite = NULL;
69uschar *eldap_default_servers = NULL;
70uschar *eldap_require_cert = NULL;
71int eldap_version = -1;
72BOOL eldap_start_tls = FALSE;
73#endif
74
75#ifdef LOOKUP_MYSQL
76uschar *mysql_servers = NULL;
77#endif
78
79#ifdef LOOKUP_ORACLE
80uschar *oracle_servers = NULL;
81#endif
82
83#ifdef LOOKUP_PGSQL
84uschar *pgsql_servers = NULL;
85#endif
86
87#ifdef LOOKUP_REDIS
88uschar *redis_servers = NULL;
89#endif
90
91#ifdef LOOKUP_SQLITE
92int sqlite_lock_timeout = 5;
93#endif
94
95#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
96BOOL move_frozen_messages = FALSE;
97#endif
98
99/* These variables are outside the #ifdef because it keeps the code less
100cluttered in several places (e.g. during logging) if we can always refer to
101them. Also, the tls_ variables are now always visible. */
102
103tls_support tls_in = {
104 -1, /* tls_active */
105 0, /* tls_bits */
106 FALSE,/* tls_certificate_verified */
107#ifdef EXPERIMENTAL_DANE
108 FALSE,/* dane_verified */
109 0, /* tlsa_usage */
110#endif
111 NULL, /* tls_cipher */
112 FALSE,/* tls_on_connect */
113 NULL, /* tls_on_connect_ports */
114 NULL, /* tls_ourcert */
115 NULL, /* tls_peercert */
116 NULL, /* tls_peerdn */
117 NULL, /* tls_sni */
118 0 /* tls_ocsp */
119};
120tls_support tls_out = {
121 -1, /* tls_active */
122 0, /* tls_bits */
123 FALSE,/* tls_certificate_verified */
124#ifdef EXPERIMENTAL_DANE
125 FALSE,/* dane_verified */
126 0, /* tlsa_usage */
127#endif
128 NULL, /* tls_cipher */
129 FALSE,/* tls_on_connect */
130 NULL, /* tls_on_connect_ports */
131 NULL, /* tls_ourcert */
132 NULL, /* tls_peercert */
133 NULL, /* tls_peerdn */
134 NULL, /* tls_sni */
135 0 /* tls_ocsp */
136};
137
138uschar *dsn_envid = NULL;
139int dsn_ret = 0;
140const pcre *regex_DSN = NULL;
141uschar *dsn_advertise_hosts = NULL;
142
143#ifdef SUPPORT_TLS
144BOOL gnutls_compat_mode = FALSE;
145BOOL gnutls_allow_auto_pkcs11 = FALSE;
146uschar *openssl_options = NULL;
147const pcre *regex_STARTTLS = NULL;
148uschar *tls_advertise_hosts = US"*";
149uschar *tls_certificate = NULL;
150uschar *tls_crl = NULL;
151/* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
152that's the interop problem which has been observed: GnuTLS suggesting a higher
153bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
154int tls_dh_max_bits = 2236;
155uschar *tls_dhparam = NULL;
156uschar *tls_eccurve = US"prime256v1";
157# ifndef DISABLE_OCSP
158uschar *tls_ocsp_file = NULL;
159# endif
160uschar *tls_privatekey = NULL;
161BOOL tls_remember_esmtp = FALSE;
162uschar *tls_require_ciphers = NULL;
163uschar *tls_try_verify_hosts = NULL;
164uschar *tls_verify_certificates= US"system";
165uschar *tls_verify_hosts = NULL;
166#else /*!SUPPORT_TLS*/
167uschar *tls_advertise_hosts = NULL;
168#endif
169
170#ifndef DISABLE_PRDR
171/* Per Recipient Data Response variables */
172BOOL prdr_enable = FALSE;
173BOOL prdr_requested = FALSE;
174const pcre *regex_PRDR = NULL;
175#endif
176
177#ifdef SUPPORT_I18N
178const pcre *regex_UTF8 = NULL;
179#endif
180
181/* Input-reading functions for messages, so we can use special ones for
182incoming TCP/IP. The defaults use stdin. We never need these for any
183stand-alone tests. */
184
185#ifndef STAND_ALONE
186int (*lwr_receive_getc)(void) = stdin_getc;
187int (*lwr_receive_ungetc)(int) = stdin_ungetc;
188int (*receive_getc)(void) = stdin_getc;
189void (*receive_get_cache)(void)= NULL;
190int (*receive_ungetc)(int) = stdin_ungetc;
191int (*receive_feof)(void) = stdin_feof;
192int (*receive_ferror)(void) = stdin_ferror;
193BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
194#endif
195
196
197/* List of per-address expansion variables for clearing and saving/restoring
198when verifying one address while routing/verifying another. We have to have
199the size explicit, because it is referenced from more than one module. */
200
201const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
202 CUSS &deliver_address_data,
203 CUSS &deliver_domain,
204 CUSS &deliver_domain_data,
205 CUSS &deliver_domain_orig,
206 CUSS &deliver_domain_parent,
207 CUSS &deliver_localpart,
208 CUSS &deliver_localpart_data,
209 CUSS &deliver_localpart_orig,
210 CUSS &deliver_localpart_parent,
211 CUSS &deliver_localpart_prefix,
212 CUSS &deliver_localpart_suffix,
213 CUSS (uschar **)(&deliver_recipients),
214 CUSS &deliver_host,
215 CUSS &deliver_home,
216 CUSS &address_file,
217 CUSS &address_pipe,
218 CUSS &self_hostname,
219 NULL };
220
221int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
222
223/* General global variables */
224
225header_line *acl_added_headers = NULL;
226tree_node *acl_anchor = NULL;
227uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
228 NULL, NULL, NULL, NULL};
229int acl_narg = 0;
230
231uschar *acl_not_smtp = NULL;
232#ifdef WITH_CONTENT_SCAN
233uschar *acl_not_smtp_mime = NULL;
234#endif
235uschar *acl_not_smtp_start = NULL;
236uschar *acl_removed_headers = NULL;
237uschar *acl_smtp_auth = NULL;
238uschar *acl_smtp_connect = NULL;
239uschar *acl_smtp_data = NULL;
240#ifndef DISABLE_PRDR
241uschar *acl_smtp_data_prdr = US"accept";
242#endif
243#ifndef DISABLE_DKIM
244uschar *acl_smtp_dkim = NULL;
245#endif
246uschar *acl_smtp_etrn = NULL;
247uschar *acl_smtp_expn = NULL;
248uschar *acl_smtp_helo = NULL;
249uschar *acl_smtp_mail = NULL;
250uschar *acl_smtp_mailauth = NULL;
251#ifdef WITH_CONTENT_SCAN
252uschar *acl_smtp_mime = NULL;
253#endif
254uschar *acl_smtp_notquit = NULL;
255uschar *acl_smtp_predata = NULL;
256uschar *acl_smtp_quit = NULL;
257uschar *acl_smtp_rcpt = NULL;
258uschar *acl_smtp_starttls = NULL;
259uschar *acl_smtp_vrfy = NULL;
260
261BOOL acl_temp_details = FALSE;
262tree_node *acl_var_c = NULL;
263tree_node *acl_var_m = NULL;
264uschar *acl_verify_message = NULL;
265string_item *acl_warn_logged = NULL;
266
267/* Names of SMTP places for use in ACL error messages, and corresponding SMTP
268error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
269
270uschar *acl_wherenames[] = { US"RCPT",
271 US"MAIL",
272 US"PREDATA",
273 US"MIME",
274 US"DKIM",
275 US"DATA",
276#ifndef DISABLE_PRDR
277 US"PRDR",
278#endif
279 US"non-SMTP",
280 US"AUTH",
281 US"connection",
282 US"ETRN",
283 US"EXPN",
284 US"EHLO or HELO",
285 US"MAILAUTH",
286 US"non-SMTP-start",
287 US"NOTQUIT",
288 US"QUIT",
289 US"STARTTLS",
290 US"VRFY",
291 US"delivery",
292 US"unknown"
293 };
294
295uschar *acl_wherecodes[] = { US"550", /* RCPT */
296 US"550", /* MAIL */
297 US"550", /* PREDATA */
298 US"550", /* MIME */
299 US"550", /* DKIM */
300 US"550", /* DATA */
301#ifndef DISABLE_PRDR
302 US"550", /* RCPT PRDR */
303#endif
304 US"0", /* not SMTP; not relevant */
305 US"503", /* AUTH */
306 US"550", /* connect */
307 US"458", /* ETRN */
308 US"550", /* EXPN */
309 US"550", /* HELO/EHLO */
310 US"0", /* MAILAUTH; not relevant */
311 US"0", /* not SMTP; not relevant */
312 US"0", /* NOTQUIT; not relevant */
313 US"0", /* QUIT; not relevant */
314 US"550", /* STARTTLS */
315 US"252", /* VRFY */
316 US"0", /* delivery; not relevant */
317 US"0" /* unknown; not relevant */
318 };
319
320BOOL active_local_from_check = FALSE;
321BOOL active_local_sender_retain = FALSE;
322BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
323uschar *add_environment = NULL;
324address_item *addr_duplicate = NULL;
325
326address_item address_defaults = {
327 NULL, /* next */
328 NULL, /* parent */
329 NULL, /* first */
330 NULL, /* dupof */
331 NULL, /* start_router */
332 NULL, /* router */
333 NULL, /* transport */
334 NULL, /* host_list */
335 NULL, /* host_used */
336 NULL, /* fallback_hosts */
337 NULL, /* reply */
338 NULL, /* retries */
339 NULL, /* address */
340 NULL, /* unique */
341 NULL, /* cc_local_part */
342 NULL, /* lc_local_part */
343 NULL, /* local_part */
344 NULL, /* prefix */
345 NULL, /* suffix */
346 NULL, /* domain */
347 NULL, /* address_retry_key */
348 NULL, /* domain_retry_key */
349 NULL, /* current_dir */
350 NULL, /* home_dir */
351 NULL, /* message */
352 NULL, /* user_message */
353 NULL, /* onetime_parent */
354 NULL, /* pipe_expandn */
355 NULL, /* return_filename */
356 NULL, /* self_hostname */
357 NULL, /* shadow_message */
358#ifdef SUPPORT_TLS
359 NULL, /* cipher */
360 NULL, /* ourcert */
361 NULL, /* peercert */
362 NULL, /* peerdn */
363 OCSP_NOT_REQ, /* ocsp */
364#endif
365#ifdef EXPERIMENTAL_DSN_INFO
366 NULL, /* smtp_greeting */
367 NULL, /* helo_response */
368#endif
369 NULL, /* authenticator */
370 NULL, /* auth_id */
371 NULL, /* auth_sndr */
372 NULL, /* dsn_orcpt */
373 0, /* dsn_flags */
374 0, /* dsn_aware */
375 (uid_t)(-1), /* uid */
376 (gid_t)(-1), /* gid */
377 0, /* flags */
378 { 0 }, /* domain_cache - any larger array should be zeroed */
379 { 0 }, /* localpart_cache - ditto */
380 -1, /* mode */
381 0, /* more_errno */
382 ERRNO_UNKNOWNERROR, /* basic_errno */
383 0, /* child_count */
384 -1, /* return_file */
385 SPECIAL_NONE, /* special_action */
386 DEFER, /* transport_return */
387 { /* fields that are propagated to children */
388 NULL, /* address_data */
389 NULL, /* domain_data */
390 NULL, /* localpart_data */
391 NULL, /* errors_address */
392 NULL, /* extra_headers */
393 NULL, /* remove_headers */
394#ifdef EXPERIMENTAL_SRS
395 NULL, /* srs_sender */
396#endif
397#ifdef SUPPORT_I18N
398 FALSE, /* utf8 */
399#endif
400 }
401};
402
403uschar *address_file = NULL;
404uschar *address_pipe = NULL;
405BOOL address_test_mode = FALSE;
406tree_node *addresslist_anchor = NULL;
407int addresslist_count = 0;
408gid_t *admin_groups = NULL;
409BOOL admin_user = FALSE;
410BOOL allow_auth_unadvertised= FALSE;
411BOOL allow_domain_literals = FALSE;
412BOOL allow_mx_to_ip = FALSE;
413BOOL allow_unqualified_recipient = TRUE; /* For local messages */
414BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
415BOOL allow_utf8_domains = FALSE;
416uschar *authenticated_fail_id = NULL;
417uschar *authenticated_id = NULL;
418uschar *authenticated_sender = NULL;
419BOOL authentication_failed = FALSE;
420auth_instance *auths = NULL;
421uschar *auth_advertise_hosts = US"*";
422auth_instance auth_defaults = {
423 NULL, /* chain pointer */
424 NULL, /* name */
425 NULL, /* info */
426 NULL, /* private options block pointer */
427 NULL, /* driver_name */
428 NULL, /* advertise_condition */
429 NULL, /* client_condition */
430 NULL, /* public_name */
431 NULL, /* set_id */
432 NULL, /* set_client_id */
433 NULL, /* server_mail_auth_condition */
434 NULL, /* server_debug_string */
435 NULL, /* server_condition */
436 FALSE, /* client */
437 FALSE, /* server */
438 FALSE /* advertised */
439};
440
441uschar *auth_defer_msg = US"reason not recorded";
442uschar *auth_defer_user_msg = US"";
443uschar *auth_vars[AUTH_VARS];
444int auto_thaw = 0;
445#ifdef WITH_CONTENT_SCAN
446BOOL av_failed = FALSE;
447uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
448#endif
449
450BOOL background_daemon = TRUE;
451
452#if BASE_62 == 62
453uschar *base62_chars=
454 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
455#else
456uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
457#endif
458
459uschar *bi_command = NULL;
460uschar *big_buffer = NULL;
461int big_buffer_size = BIG_BUFFER_SIZE;
462#ifdef EXPERIMENTAL_BRIGHTMAIL
463uschar *bmi_alt_location = NULL;
464uschar *bmi_base64_tracker_verdict = NULL;
465uschar *bmi_base64_verdict = NULL;
466uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
467int bmi_deliver = 1;
468int bmi_run = 0;
469uschar *bmi_verdicts = NULL;
470#endif
471int body_8bitmime = 0;
472int body_linecount = 0;
473int body_zerocount = 0;
474uschar *bounce_message_file = NULL;
475uschar *bounce_message_text = NULL;
476uschar *bounce_recipient = NULL;
477BOOL bounce_return_body = TRUE;
478int bounce_return_linesize_limit = 998;
479BOOL bounce_return_message = TRUE;
480int bounce_return_size_limit = 100*1024;
481uschar *bounce_sender_authentication = NULL;
482int bsmtp_transaction_linecount = 0;
483
484uschar *callout_address = NULL;
485int callout_cache_domain_positive_expire = 7*24*60*60;
486int callout_cache_domain_negative_expire = 3*60*60;
487int callout_cache_positive_expire = 24*60*60;
488int callout_cache_negative_expire = 2*60*60;
489uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
490uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
491int check_log_inodes = 0;
492int check_log_space = 0;
493BOOL check_rfc2047_length = TRUE;
494int check_spool_inodes = 0;
495int check_spool_space = 0;
496
497uschar *chunking_advertise_hosts = US"*";
498unsigned chunking_datasize = 0;
499unsigned chunking_data_left = 0;
500BOOL chunking_offered = FALSE;
501chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
502const pcre *regex_CHUNKING = NULL;
503
504uschar *client_authenticator = NULL;
505uschar *client_authenticated_id = NULL;
506uschar *client_authenticated_sender = NULL;
507int clmacro_count = 0;
508uschar *clmacros[MAX_CLMACROS];
509BOOL config_changed = FALSE;
510FILE *config_file = NULL;
511uschar *config_filename = NULL;
512int config_lineno = 0;
513#ifdef CONFIGURE_GROUP
514gid_t config_gid = CONFIGURE_GROUP;
515#endif
516uschar *config_main_filelist = US CONFIGURE_FILE
517 "\0<-----------Space to patch configure_filename->";
518uschar *config_main_filename = NULL;
519uschar *config_main_directory = NULL;
520
521#ifdef CONFIGURE_OWNER
522uid_t config_uid = CONFIGURE_OWNER;
523#endif
524
525int connection_max_messages= -1;
526uschar *continue_hostname = NULL;
527uschar *continue_host_address = NULL;
528BOOL continue_more = FALSE;
529int continue_sequence = 1;
530uschar *continue_transport = NULL;
531
532uschar *csa_status = NULL;
533cut_t cutthrough = {
534 FALSE, /* delivery: when to attempt */
535 -1, /* fd: open connection */
536 0, /* nrcpt: number of addresses */
537};
538
539BOOL daemon_listen = FALSE;
540uschar *daemon_smtp_port = US"smtp";
541int daemon_startup_retries = 9;
542int daemon_startup_sleep = 30;
543
544#ifdef EXPERIMENTAL_DCC
545BOOL dcc_direct_add_header = FALSE;
546uschar *dcc_header = NULL;
547uschar *dcc_result = NULL;
548uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
549uschar *dccifd_options = US"header";
550#endif
551
552BOOL debug_daemon = FALSE;
553int debug_fd = -1;
554FILE *debug_file = NULL;
555int debug_notall[] = {
556 Di_memory,
557 -1
558};
559bit_table debug_options[] = { /* must be in alphabetical order */
560 BIT_TABLE(D, acl),
561 BIT_TABLE(D, all),
562 BIT_TABLE(D, auth),
563 BIT_TABLE(D, deliver),
564 BIT_TABLE(D, dns),
565 BIT_TABLE(D, dnsbl),
566 BIT_TABLE(D, exec),
567 BIT_TABLE(D, expand),
568 BIT_TABLE(D, filter),
569 BIT_TABLE(D, hints_lookup),
570 BIT_TABLE(D, host_lookup),
571 BIT_TABLE(D, ident),
572 BIT_TABLE(D, interface),
573 BIT_TABLE(D, lists),
574 BIT_TABLE(D, load),
575 BIT_TABLE(D, local_scan),
576 BIT_TABLE(D, lookup),
577 BIT_TABLE(D, memory),
578 BIT_TABLE(D, pid),
579 BIT_TABLE(D, process_info),
580 BIT_TABLE(D, queue_run),
581 BIT_TABLE(D, receive),
582 BIT_TABLE(D, resolver),
583 BIT_TABLE(D, retry),
584 BIT_TABLE(D, rewrite),
585 BIT_TABLE(D, route),
586 BIT_TABLE(D, timestamp),
587 BIT_TABLE(D, tls),
588 BIT_TABLE(D, transport),
589 BIT_TABLE(D, uid),
590 BIT_TABLE(D, verify),
591};
592int debug_options_count = nelem(debug_options);
593
594unsigned int debug_selector = 0;
595int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
596uschar *delay_warning_condition=
597 US"${if or {"
598 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
599 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
600 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
601 "} {no}{yes}}";
602BOOL delivery_date_remove = TRUE;
603uschar *deliver_address_data = NULL;
604int deliver_datafile = -1;
605const uschar *deliver_domain = NULL;
606uschar *deliver_domain_data = NULL;
607const uschar *deliver_domain_orig = NULL;
608const uschar *deliver_domain_parent = NULL;
609BOOL deliver_drop_privilege = FALSE;
610BOOL deliver_firsttime = FALSE;
611BOOL deliver_force = FALSE;
612BOOL deliver_freeze = FALSE;
613time_t deliver_frozen_at = 0;
614uschar *deliver_home = NULL;
615const uschar *deliver_host = NULL;
616const uschar *deliver_host_address = NULL;
617int deliver_host_port = 0;
618uschar *deliver_in_buffer = NULL;
619ino_t deliver_inode = 0;
620uschar *deliver_localpart = NULL;
621uschar *deliver_localpart_data = NULL;
622uschar *deliver_localpart_orig = NULL;
623uschar *deliver_localpart_parent = NULL;
624uschar *deliver_localpart_prefix = NULL;
625uschar *deliver_localpart_suffix = NULL;
626BOOL deliver_force_thaw = FALSE;
627BOOL deliver_manual_thaw = FALSE;
628uschar *deliver_out_buffer = NULL;
629int deliver_queue_load_max = -1;
630address_item *deliver_recipients = NULL;
631uschar *deliver_selectstring = NULL;
632BOOL deliver_selectstring_regex = FALSE;
633uschar *deliver_selectstring_sender = NULL;
634BOOL deliver_selectstring_sender_regex = FALSE;
635BOOL disable_callout_flush = FALSE;
636BOOL disable_delay_flush = FALSE;
637#ifdef ENABLE_DISABLE_FSYNC
638BOOL disable_fsync = FALSE;
639#endif
640BOOL disable_ipv6 = FALSE;
641BOOL disable_logging = FALSE;
642
643#ifndef DISABLE_DKIM
644BOOL dkim_collect_input = FALSE;
645uschar *dkim_cur_signer = NULL;
646BOOL dkim_disable_verify = FALSE;
647int dkim_key_length = 0;
648uschar *dkim_signers = NULL;
649uschar *dkim_signing_domain = NULL;
650uschar *dkim_signing_selector = NULL;
651uschar *dkim_verify_signers = US"$dkim_signers";
652#endif
653#ifdef EXPERIMENTAL_DMARC
654BOOL dmarc_has_been_checked = FALSE;
655uschar *dmarc_ar_header = NULL;
656uschar *dmarc_domain_policy = NULL;
657uschar *dmarc_forensic_sender = NULL;
658uschar *dmarc_history_file = NULL;
659uschar *dmarc_status = NULL;
660uschar *dmarc_status_text = NULL;
661uschar *dmarc_tld_file = NULL;
662uschar *dmarc_used_domain = NULL;
663BOOL dmarc_disable_verify = FALSE;
664BOOL dmarc_enable_forensic = FALSE;
665#endif
666
667uschar *dns_again_means_nonexist = NULL;
668int dns_csa_search_limit = 5;
669BOOL dns_csa_use_reverse = TRUE;
670#ifdef EXPERIMENTAL_DANE
671int dns_dane_ok = -1;
672#endif
673uschar *dns_ipv4_lookup = NULL;
674int dns_retrans = 0;
675int dns_retry = 0;
676int dns_dnssec_ok = -1; /* <0 = not coerced */
677uschar *dns_trust_aa = NULL;
678int dns_use_edns0 = -1; /* <0 = not coerced */
679uschar *dnslist_domain = NULL;
680uschar *dnslist_matched = NULL;
681uschar *dnslist_text = NULL;
682uschar *dnslist_value = NULL;
683tree_node *domainlist_anchor = NULL;
684int domainlist_count = 0;
685BOOL dont_deliver = FALSE;
686BOOL dot_ends = TRUE;
687BOOL drop_cr = FALSE; /* No longer used */
688uschar *dsn_from = US DEFAULT_DSN_FROM;
689
690BOOL enable_dollar_recipients = FALSE;
691BOOL envelope_to_remove = TRUE;
692int errno_quota = ERRNO_QUOTA;
693uschar *errors_copy = NULL;
694int error_handling = ERRORS_SENDER;
695uschar *errors_reply_to = NULL;
696int errors_sender_rc = EXIT_FAILURE;
697#ifndef DISABLE_EVENT
698uschar *event_action = NULL; /* expansion for delivery events */
699uschar *event_data = NULL; /* auxilary data variable for event */
700int event_defer_errno = 0;
701const uschar *event_name = NULL; /* event name variable */
702#endif
703
704
705gid_t exim_gid = EXIM_GID;
706BOOL exim_gid_set = TRUE; /* This gid is always set */
707uschar *exim_path = US BIN_DIRECTORY "/exim"
708 "\0<---------------Space to patch exim_path->";
709uid_t exim_uid = EXIM_UID;
710BOOL exim_uid_set = TRUE; /* This uid is always set */
711int expand_forbid = 0;
712int expand_nlength[EXPAND_MAXN+1];
713int expand_nmax = -1;
714uschar *expand_nstring[EXPAND_MAXN+1];
715BOOL expand_string_forcedfail = FALSE;
716uschar *expand_string_message;
717BOOL extract_addresses_remove_arguments = TRUE;
718uschar *extra_local_interfaces = NULL;
719
720int fake_response = OK;
721uschar *fake_response_text = US"Your message has been rejected but is "
722 "being kept for evaluation.\nIf it was a "
723 "legitimate message, it may still be "
724 "delivered to the target recipient(s).";
725int filter_n[FILTER_VARIABLE_COUNT];
726BOOL filter_running = FALSE;
727int filter_sn[FILTER_VARIABLE_COUNT];
728int filter_test = FTEST_NONE;
729uschar *filter_test_sfile = NULL;
730uschar *filter_test_ufile = NULL;
731uschar *filter_thisaddress = NULL;
732int finduser_retries = 0;
733uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
734uschar *freeze_tell = NULL;
735uschar *freeze_tell_config = NULL;
736uschar *fudged_queue_times = US"";
737
738uschar *gecos_name = NULL;
739uschar *gecos_pattern = NULL;
740rewrite_rule *global_rewrite_rules = NULL;
741
742uschar *headers_charset = US HEADERS_CHARSET;
743int header_insert_maxlen = 64 * 1024;
744header_line *header_last = NULL;
745header_line *header_list = NULL;
746int header_maxsize = HEADER_MAXSIZE;
747int header_line_maxsize = 0;
748
749header_name header_names[] = {
750 { US"bcc", 3, TRUE, htype_bcc },
751 { US"cc", 2, TRUE, htype_cc },
752 { US"date", 4, TRUE, htype_date },
753 { US"delivery-date", 13, FALSE, htype_delivery_date },
754 { US"envelope-to", 11, FALSE, htype_envelope_to },
755 { US"from", 4, TRUE, htype_from },
756 { US"message-id", 10, TRUE, htype_id },
757 { US"received", 8, FALSE, htype_received },
758 { US"reply-to", 8, FALSE, htype_reply_to },
759 { US"return-path", 11, FALSE, htype_return_path },
760 { US"sender", 6, TRUE, htype_sender },
761 { US"subject", 7, FALSE, htype_subject },
762 { US"to", 2, TRUE, htype_to }
763};
764
765int header_names_size = sizeof(header_names)/sizeof(header_name);
766
767BOOL header_rewritten = FALSE;
768uschar *helo_accept_junk_hosts = NULL;
769uschar *helo_allow_chars = US"";
770uschar *helo_lookup_domains = US"@ : @[]";
771uschar *helo_try_verify_hosts = NULL;
772BOOL helo_verified = FALSE;
773BOOL helo_verify_failed = FALSE;
774uschar *helo_verify_hosts = NULL;
775const uschar *hex_digits = CUS"0123456789abcdef";
776uschar *hold_domains = NULL;
777BOOL host_checking = FALSE;
778BOOL host_checking_callout = FALSE;
779uschar *host_data = NULL;
780BOOL host_find_failed_syntax= FALSE;
781uschar *host_lookup = NULL;
782BOOL host_lookup_deferred = FALSE;
783BOOL host_lookup_failed = FALSE;
784uschar *host_lookup_order = US"bydns:byaddr";
785uschar *host_lookup_msg = US"";
786int host_number = 0;
787uschar *host_number_string = NULL;
788uschar *host_reject_connection = NULL;
789tree_node *hostlist_anchor = NULL;
790int hostlist_count = 0;
791uschar *hosts_treat_as_local = NULL;
792uschar *hosts_connection_nolog = NULL;
793
794int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
795BOOL ignore_fromline_local = FALSE;
796uschar *ignore_fromline_hosts = NULL;
797BOOL inetd_wait_mode = FALSE;
798int inetd_wait_timeout = -1;
799uschar *initial_cwd = NULL;
800uschar *interface_address = NULL;
801int interface_port = -1;
802BOOL is_inetd = FALSE;
803uschar *iterate_item = NULL;
804
805int journal_fd = -1;
806
807uschar *keep_environment = NULL;
808
809int keep_malformed = 4*24*60*60; /* 4 days */
810
811uschar *eldap_dn = NULL;
812int load_average = -2;
813BOOL local_error_message = FALSE;
814BOOL local_from_check = TRUE;
815uschar *local_from_prefix = NULL;
816uschar *local_from_suffix = NULL;
817
818#if HAVE_IPV6
819uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
820#else
821uschar *local_interfaces = US"0.0.0.0";
822#endif
823
824uschar *local_scan_data = NULL;
825int local_scan_timeout = 5*60;
826BOOL local_sender_retain = FALSE;
827gid_t local_user_gid = (gid_t)(-1);
828uid_t local_user_uid = (uid_t)(-1);
829
830tree_node *localpartlist_anchor= NULL;
831int localpartlist_count = 0;
832uschar *log_buffer = NULL;
833
834int log_default[] = { /* for initializing log_selector */
835 Li_acl_warn_skipped,
836 Li_connection_reject,
837 Li_delay_delivery,
838 Li_dnslist_defer,
839 Li_etrn,
840 Li_host_lookup_failed,
841 Li_lost_incoming_connection,
842 Li_outgoing_interface, /* see d_log_interface in deliver.c */
843 Li_queue_run,
844 Li_rejected_header,
845 Li_retry_defer,
846 Li_sender_verify_fail,
847 Li_size_reject,
848 Li_skip_delivery,
849 Li_smtp_confirmation,
850 Li_tls_certificate_verified,
851 Li_tls_cipher,
852 -1
853};
854
855uschar *log_file_path = US LOG_FILE_PATH
856 "\0<--------------Space to patch log_file_path->";
857
858int log_notall[] = {
859 -1
860};
861bit_table log_options[] = { /* must be in alphabetical order */
862 BIT_TABLE(L, 8bitmime),
863 BIT_TABLE(L, acl_warn_skipped),
864 BIT_TABLE(L, address_rewrite),
865 BIT_TABLE(L, all),
866 BIT_TABLE(L, all_parents),
867 BIT_TABLE(L, arguments),
868 BIT_TABLE(L, connection_reject),
869 BIT_TABLE(L, delay_delivery),
870 BIT_TABLE(L, deliver_time),
871 BIT_TABLE(L, delivery_size),
872 BIT_TABLE(L, dnslist_defer),
873 BIT_TABLE(L, dnssec),
874 BIT_TABLE(L, etrn),
875 BIT_TABLE(L, host_lookup_failed),
876 BIT_TABLE(L, ident_timeout),
877 BIT_TABLE(L, incoming_interface),
878 BIT_TABLE(L, incoming_port),
879 BIT_TABLE(L, lost_incoming_connection),
880 BIT_TABLE(L, outgoing_interface),
881 BIT_TABLE(L, outgoing_port),
882 BIT_TABLE(L, pid),
883#if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
884 BIT_TABLE(L, proxy),
885#endif
886 BIT_TABLE(L, queue_run),
887 BIT_TABLE(L, queue_time),
888 BIT_TABLE(L, queue_time_overall),
889 BIT_TABLE(L, received_recipients),
890 BIT_TABLE(L, received_sender),
891 BIT_TABLE(L, rejected_header),
892 { US"rejected_headers", Li_rejected_header },
893 BIT_TABLE(L, retry_defer),
894 BIT_TABLE(L, return_path_on_delivery),
895 BIT_TABLE(L, sender_on_delivery),
896 BIT_TABLE(L, sender_verify_fail),
897 BIT_TABLE(L, size_reject),
898 BIT_TABLE(L, skip_delivery),
899 BIT_TABLE(L, smtp_confirmation),
900 BIT_TABLE(L, smtp_connection),
901 BIT_TABLE(L, smtp_incomplete_transaction),
902 BIT_TABLE(L, smtp_mailauth),
903 BIT_TABLE(L, smtp_no_mail),
904 BIT_TABLE(L, smtp_protocol_error),
905 BIT_TABLE(L, smtp_syntax_error),
906 BIT_TABLE(L, subject),
907 BIT_TABLE(L, tls_certificate_verified),
908 BIT_TABLE(L, tls_cipher),
909 BIT_TABLE(L, tls_peerdn),
910 BIT_TABLE(L, tls_sni),
911 BIT_TABLE(L, unknown_in_list),
912};
913int log_options_count = nelem(log_options);
914
915int log_reject_target = 0;
916unsigned int log_selector[log_selector_size]; /* initialized in main() */
917uschar *log_selector_string = NULL;
918FILE *log_stderr = NULL;
919BOOL log_testing_mode = FALSE;
920BOOL log_timezone = FALSE;
921uschar *login_sender_address = NULL;
922uschar *lookup_dnssec_authenticated = NULL;
923int lookup_open_max = 25;
924uschar *lookup_value = NULL;
925
926macro_item *macros = NULL;
927uschar *mailstore_basename = NULL;
928#ifdef WITH_CONTENT_SCAN
929uschar *malware_name = NULL; /* Virus Name */
930#endif
931int max_received_linelength= 0;
932int max_username_length = 0;
933int message_age = 0;
934uschar *message_body = NULL;
935uschar *message_body_end = NULL;
936BOOL message_body_newlines = FALSE;
937int message_body_size = 0;
938int message_body_visible = 500;
939int message_ended = END_NOTSTARTED;
940uschar *message_headers = NULL;
941uschar *message_id;
942uschar *message_id_domain = NULL;
943uschar *message_id_text = NULL;
944struct timeval message_id_tv = { 0, 0 };
945uschar message_id_option[MESSAGE_ID_LENGTH + 3];
946uschar *message_id_external;
947int message_linecount = 0;
948BOOL message_logs = TRUE;
949int message_size = 0;
950uschar *message_size_limit = US"50M";
951#ifdef SUPPORT_I18N
952BOOL message_smtputf8 = FALSE;
953int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
954#endif
955uschar message_subdir[2] = { 0, 0 };
956uschar *message_reference = NULL;
957
958/* MIME ACL expandables */
959#ifdef WITH_CONTENT_SCAN
960int mime_anomaly_level = 0;
961const uschar *mime_anomaly_text = NULL;
962uschar *mime_boundary = NULL;
963uschar *mime_charset = NULL;
964uschar *mime_content_description = NULL;
965uschar *mime_content_disposition = NULL;
966uschar *mime_content_id = NULL;
967unsigned int mime_content_size = 0;
968uschar *mime_content_transfer_encoding = NULL;
969uschar *mime_content_type = NULL;
970uschar *mime_decoded_filename = NULL;
971uschar *mime_filename = NULL;
972int mime_is_multipart = 0;
973int mime_is_coverletter = 0;
974int mime_is_rfc822 = 0;
975int mime_part_count = -1;
976#endif
977
978BOOL mua_wrapper = FALSE;
979
980uid_t *never_users = NULL;
981#ifdef WITH_CONTENT_SCAN
982BOOL no_mbox_unspool = FALSE;
983#endif
984BOOL no_multiline_responses = FALSE;
985
986uid_t original_euid;
987gid_t originator_gid;
988uschar *originator_login = NULL;
989uschar *originator_name = NULL;
990uid_t originator_uid;
991uschar *override_local_interfaces = NULL;
992uschar *override_pid_file_path = NULL;
993
994BOOL parse_allow_group = FALSE;
995BOOL parse_found_group = FALSE;
996uschar *percent_hack_domains = NULL;
997uschar *pid_file_path = US PID_FILE_PATH
998 "\0<--------------Space to patch pid_file_path->";
999BOOL pipelining_enable = TRUE;
1000uschar *pipelining_advertise_hosts = US"*";
1001BOOL preserve_message_logs = FALSE;
1002uschar *primary_hostname = NULL;
1003BOOL print_topbitchars = FALSE;
1004uschar process_info[PROCESS_INFO_SIZE];
1005int process_info_len = 0;
1006uschar *process_log_path = NULL;
1007BOOL prod_requires_admin = TRUE;
1008
1009#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1010uschar *hosts_proxy = US"";
1011uschar *proxy_external_address = US"";
1012int proxy_external_port = 0;
1013uschar *proxy_local_address = US"";
1014int proxy_local_port = 0;
1015BOOL proxy_session = FALSE;
1016BOOL proxy_session_failed = FALSE;
1017#endif
1018
1019uschar *prvscheck_address = NULL;
1020uschar *prvscheck_keynum = NULL;
1021uschar *prvscheck_result = NULL;
1022
1023
1024const uschar *qualify_domain_recipient = NULL;
1025uschar *qualify_domain_sender = NULL;
1026BOOL queue_2stage = FALSE;
1027uschar *queue_domains = NULL;
1028int queue_interval = -1;
1029BOOL queue_list_requires_admin = TRUE;
1030uschar *queue_name = US"";
1031BOOL queue_only = FALSE;
1032uschar *queue_only_file = NULL;
1033int queue_only_load = -1;
1034BOOL queue_only_load_latch = TRUE;
1035BOOL queue_only_override = TRUE;
1036BOOL queue_only_policy = FALSE;
1037BOOL queue_run_first_delivery = FALSE;
1038BOOL queue_run_force = FALSE;
1039BOOL queue_run_in_order = FALSE;
1040BOOL queue_run_local = FALSE;
1041uschar *queue_run_max = US"5";
1042pid_t queue_run_pid = (pid_t)0;
1043int queue_run_pipe = -1;
1044BOOL queue_running = FALSE;
1045BOOL queue_smtp = FALSE;
1046uschar *queue_smtp_domains = NULL;
1047
1048unsigned int random_seed = 0;
1049tree_node *ratelimiters_cmd = NULL;
1050tree_node *ratelimiters_conn = NULL;
1051tree_node *ratelimiters_mail = NULL;
1052uschar *raw_active_hostname = NULL;
1053uschar *raw_sender = NULL;
1054uschar **raw_recipients = NULL;
1055int raw_recipients_count = 0;
1056
1057int rcpt_count = 0;
1058int rcpt_fail_count = 0;
1059int rcpt_defer_count = 0;
1060gid_t real_gid;
1061uid_t real_uid;
1062BOOL really_exim = TRUE;
1063BOOL receive_call_bombout = FALSE;
1064int receive_linecount = 0;
1065int receive_messagecount = 0;
1066int receive_timeout = 0;
1067int received_count = 0;
1068uschar *received_for = NULL;
1069
1070/* This is the default text for Received headers generated by Exim. The
1071date will be automatically added on the end. */
1072
1073uschar *received_header_text = US
1074 "Received: "
1075 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1076 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1077 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1078 "by $primary_hostname "
1079 "${if def:received_protocol {with $received_protocol}} "
1080 #ifdef SUPPORT_TLS
1081 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1082 #endif
1083 "(Exim $version_number)\n\t"
1084 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1085 "id $message_exim_id"
1086 "${if def:received_for {\n\tfor $received_for}}"
1087 "\0<---------------Space to patch received_header_text->";
1088
1089int received_headers_max = 30;
1090uschar *received_protocol = NULL;
1091int received_time = 0;
1092uschar *recipient_data = NULL;
1093uschar *recipient_unqualified_hosts = NULL;
1094uschar *recipient_verify_failure = NULL;
1095int recipients_count = 0;
1096BOOL recipients_discarded = FALSE;
1097recipient_item *recipients_list = NULL;
1098int recipients_list_max = 0;
1099int recipients_max = 0;
1100BOOL recipients_max_reject = FALSE;
1101const pcre *regex_AUTH = NULL;
1102const pcre *regex_check_dns_names = NULL;
1103const pcre *regex_From = NULL;
1104const pcre *regex_IGNOREQUOTA = NULL;
1105const pcre *regex_PIPELINING = NULL;
1106const pcre *regex_SIZE = NULL;
1107const pcre *regex_ismsgid = NULL;
1108const pcre *regex_smtp_code = NULL;
1109uschar *regex_vars[REGEX_VARS];
1110#ifdef WHITELIST_D_MACROS
1111const pcre *regex_whitelisted_macro = NULL;
1112#endif
1113#ifdef WITH_CONTENT_SCAN
1114uschar *regex_match_string = NULL;
1115#endif
1116int remote_delivery_count = 0;
1117int remote_max_parallel = 2;
1118uschar *remote_sort_domains = NULL;
1119int retry_data_expire = 7*24*60*60;
1120int retry_interval_max = 24*60*60;
1121int retry_maximum_timeout = 0; /* set from retry config */
1122retry_config *retries = NULL;
1123uschar *return_path = NULL;
1124BOOL return_path_remove = TRUE;
1125int rewrite_existflags = 0;
1126uschar *rfc1413_hosts = US"@[]";
1127int rfc1413_query_timeout = 0;
1128/* BOOL rfc821_domains = FALSE; <<< on the way out */
1129uid_t root_gid = ROOT_GID;
1130uid_t root_uid = ROOT_UID;
1131
1132router_instance *routers = NULL;
1133router_instance router_defaults = {
1134 NULL, /* chain pointer */
1135 NULL, /* name */
1136 NULL, /* info */
1137 NULL, /* private options block pointer */
1138 NULL, /* driver name */
1139
1140 NULL, /* address_data */
1141#ifdef EXPERIMENTAL_BRIGHTMAIL
1142 NULL, /* bmi_rule */
1143#endif
1144 NULL, /* cannot_route_message */
1145 NULL, /* condition */
1146 NULL, /* current_directory */
1147 NULL, /* debug_string */
1148 NULL, /* domains */
1149 NULL, /* errors_to */
1150 NULL, /* expand_gid */
1151 NULL, /* expand_uid */
1152 NULL, /* expand_more */
1153 NULL, /* expand_unseen */
1154 NULL, /* extra_headers */
1155 NULL, /* fallback_hosts */
1156 NULL, /* home_directory */
1157 NULL, /* ignore_target_hosts */
1158 NULL, /* local_parts */
1159 NULL, /* pass_router_name */
1160 NULL, /* prefix */
1161 NULL, /* redirect_router_name */
1162 NULL, /* remove_headers */
1163 NULL, /* require_files */
1164 NULL, /* router_home_directory */
1165 US"freeze", /* self */
1166 NULL, /* senders */
1167 NULL, /* suffix */
1168 NULL, /* translate_ip_address */
1169 NULL, /* transport_name */
1170
1171 TRUE, /* address_test */
1172#ifdef EXPERIMENTAL_BRIGHTMAIL
1173 FALSE, /* bmi_deliver_alternate */
1174 FALSE, /* bmi_deliver_default */
1175 FALSE, /* bmi_dont_deliver */
1176#endif
1177 TRUE, /* expn */
1178 FALSE, /* caseful_local_part */
1179 FALSE, /* check_local_user */
1180 FALSE, /* disable_logging */
1181 FALSE, /* fail_verify_recipient */
1182 FALSE, /* fail_verify_sender */
1183 FALSE, /* gid_set */
1184 FALSE, /* initgroups */
1185 TRUE_UNSET, /* log_as_local */
1186 TRUE, /* more */
1187 FALSE, /* pass_on_timeout */
1188 FALSE, /* prefix_optional */
1189 TRUE, /* repeat_use */
1190 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1191 FALSE, /* same_domain_copy_routing */
1192 FALSE, /* self_rewrite */
1193 FALSE, /* suffix_optional */
1194 FALSE, /* verify_only */
1195 TRUE, /* verify_recipient */
1196 TRUE, /* verify_sender */
1197 FALSE, /* uid_set */
1198 FALSE, /* unseen */
1199 FALSE, /* dsn_lasthop */
1200
1201 self_freeze, /* self_code */
1202 (uid_t)(-1), /* uid */
1203 (gid_t)(-1), /* gid */
1204
1205 NULL, /* fallback_hostlist */
1206 NULL, /* transport instance */
1207 NULL, /* pass_router */
1208 NULL, /* redirect_router */
1209
1210 { NULL, NULL }, /* dnssec_domains {require,request} */
1211};
1212
1213uschar *router_name = NULL;
1214
1215ip_address_item *running_interfaces = NULL;
1216BOOL running_in_test_harness = FALSE;
1217
1218/* This is a weird one. The following string gets patched in the binary by the
1219script that sets up a copy of Exim for running in the test harness. It seems
1220that compilers are now clever, and share constant strings if they can.
1221Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1222make use of the end of this string in order to save space. So the patching then
1223wrecks this. We defeat this optimization by adding some additional characters
1224onto the end of the string. */
1225
1226uschar *running_status = US">>>running<<<" "\0EXTRA";
1227
1228int runrc = 0;
1229
1230uschar *search_error_message = NULL;
1231BOOL search_find_defer = FALSE;
1232uschar *self_hostname = NULL;
1233uschar *sender_address = NULL;
1234unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1235uschar *sender_address_data = NULL;
1236BOOL sender_address_forced = FALSE;
1237uschar *sender_address_unrewritten = NULL;
1238uschar *sender_data = NULL;
1239unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1240uschar *sender_fullhost = NULL;
1241BOOL sender_helo_dnssec = FALSE;
1242uschar *sender_helo_name = NULL;
1243uschar **sender_host_aliases = &no_aliases;
1244uschar *sender_host_address = NULL;
1245uschar *sender_host_authenticated = NULL;
1246unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1247BOOL sender_host_dnssec = FALSE;
1248uschar *sender_host_name = NULL;
1249int sender_host_port = 0;
1250BOOL sender_host_notsocket = FALSE;
1251BOOL sender_host_unknown = FALSE;
1252uschar *sender_ident = NULL;
1253BOOL sender_local = FALSE;
1254BOOL sender_name_forced = FALSE;
1255uschar *sender_rate = NULL;
1256uschar *sender_rate_limit = NULL;
1257uschar *sender_rate_period = NULL;
1258uschar *sender_rcvhost = NULL;
1259BOOL sender_set_untrusted = FALSE;
1260uschar *sender_unqualified_hosts = NULL;
1261uschar *sender_verify_failure = NULL;
1262address_item *sender_verified_list = NULL;
1263address_item *sender_verified_failed = NULL;
1264int sender_verified_rc = -1;
1265BOOL sender_verified_responded = FALSE;
1266uschar *sending_ip_address = NULL;
1267int sending_port = -1;
1268SIGNAL_BOOL sigalrm_seen = FALSE;
1269uschar **sighup_argv = NULL;
1270int slow_lookup_log = 0; /* millisecs, zero disables */
1271int smtp_accept_count = 0;
1272BOOL smtp_accept_keepalive = TRUE;
1273int smtp_accept_max = 20;
1274int smtp_accept_max_nonmail= 10;
1275uschar *smtp_accept_max_nonmail_hosts = US"*";
1276int smtp_accept_max_per_connection = 1000;
1277uschar *smtp_accept_max_per_host = NULL;
1278int smtp_accept_queue = 0;
1279int smtp_accept_queue_per_connection = 10;
1280int smtp_accept_reserve = 0;
1281uschar *smtp_active_hostname = NULL;
1282BOOL smtp_authenticated = FALSE;
1283uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1284 "Exim $version_number $tod_full"
1285 "\0<---------------Space to patch smtp_banner->";
1286BOOL smtp_batched_input = FALSE;
1287BOOL smtp_check_spool_space = TRUE;
1288int smtp_ch_index = 0;
1289uschar *smtp_cmd_argument = NULL;
1290uschar *smtp_cmd_buffer = NULL;
1291time_t smtp_connection_start = 0;
1292uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1293int smtp_connect_backlog = 20;
1294double smtp_delay_mail = 0.0;
1295double smtp_delay_rcpt = 0.0;
1296BOOL smtp_enforce_sync = TRUE;
1297FILE *smtp_in = NULL;
1298BOOL smtp_input = FALSE;
1299int smtp_load_reserve = -1;
1300int smtp_mailcmd_count = 0;
1301FILE *smtp_out = NULL;
1302uschar *smtp_etrn_command = NULL;
1303BOOL smtp_etrn_serialize = TRUE;
1304int smtp_max_synprot_errors= 3;
1305int smtp_max_unknown_commands = 3;
1306uschar *smtp_notquit_reason = NULL;
1307uschar *smtp_ratelimit_hosts = NULL;
1308uschar *smtp_ratelimit_mail = NULL;
1309uschar *smtp_ratelimit_rcpt = NULL;
1310uschar *smtp_read_error = US"";
1311int smtp_receive_timeout = 5*60;
1312uschar *smtp_receive_timeout_s = NULL;
1313uschar *smtp_reserve_hosts = NULL;
1314BOOL smtp_return_error_details = FALSE;
1315int smtp_rlm_base = 0;
1316double smtp_rlm_factor = 0.0;
1317int smtp_rlm_limit = 0;
1318int smtp_rlm_threshold = INT_MAX;
1319int smtp_rlr_base = 0;
1320double smtp_rlr_factor = 0.0;
1321int smtp_rlr_limit = 0;
1322int smtp_rlr_threshold = INT_MAX;
1323unsigned smtp_peer_options = 0;
1324unsigned smtp_peer_options_wrap= 0;
1325#ifdef SUPPORT_I18N
1326uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1327#endif
1328
1329#ifdef WITH_CONTENT_SCAN
1330uschar *spamd_address = US"127.0.0.1 783";
1331uschar *spam_bar = NULL;
1332uschar *spam_report = NULL;
1333uschar *spam_action = NULL;
1334uschar *spam_score = NULL;
1335uschar *spam_score_int = NULL;
1336#endif
1337#ifdef EXPERIMENTAL_SPF
1338uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1339uschar *spf_header_comment = NULL;
1340uschar *spf_received = NULL;
1341uschar *spf_result = NULL;
1342uschar *spf_smtp_comment = NULL;
1343#endif
1344
1345BOOL split_spool_directory = FALSE;
1346uschar *spool_directory = US SPOOL_DIRECTORY
1347 "\0<--------------Space to patch spool_directory->";
1348#ifdef EXPERIMENTAL_SRS
1349uschar *srs_config = NULL;
1350uschar *srs_db_address = NULL;
1351uschar *srs_db_key = NULL;
1352int srs_hashlength = 6;
1353int srs_hashmin = -1;
1354int srs_maxage = 31;
1355uschar *srs_orig_recipient = NULL;
1356uschar *srs_orig_sender = NULL;
1357uschar *srs_recipient = NULL;
1358uschar *srs_secrets = NULL;
1359uschar *srs_status = NULL;
1360BOOL srs_usehash = TRUE;
1361BOOL srs_usetimestamp = TRUE;
1362#endif
1363BOOL strict_acl_vars = FALSE;
1364int string_datestamp_offset= -1;
1365int string_datestamp_length= 0;
1366int string_datestamp_type = -1;
1367BOOL strip_excess_angle_brackets = FALSE;
1368BOOL strip_trailing_dot = FALSE;
1369uschar *submission_domain = NULL;
1370BOOL submission_mode = FALSE;
1371uschar *submission_name = NULL;
1372BOOL suppress_local_fixups = FALSE;
1373BOOL suppress_local_fixups_default = FALSE;
1374BOOL synchronous_delivery = FALSE;
1375BOOL syslog_duplication = TRUE;
1376int syslog_facility = LOG_MAIL;
1377uschar *syslog_processname = US"exim";
1378BOOL syslog_timestamp = TRUE;
1379uschar *system_filter = NULL;
1380
1381uschar *system_filter_directory_transport = NULL;
1382uschar *system_filter_file_transport = NULL;
1383uschar *system_filter_pipe_transport = NULL;
1384uschar *system_filter_reply_transport = NULL;
1385
1386gid_t system_filter_gid = 0;
1387BOOL system_filter_gid_set = FALSE;
1388uid_t system_filter_uid = (uid_t)-1;
1389BOOL system_filter_uid_set = FALSE;
1390BOOL system_filtering = FALSE;
1391
1392BOOL tcp_nodelay = TRUE;
1393#ifdef USE_TCP_WRAPPERS
1394uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1395#endif
1396int test_harness_load_avg = 0;
1397int thismessage_size_limit = 0;
1398int timeout_frozen_after = 0;
1399BOOL timestamps_utc = FALSE;
1400
1401transport_instance *transports = NULL;
1402
1403transport_instance transport_defaults = {
1404 NULL, /* chain pointer */
1405 NULL, /* name */
1406 NULL, /* info */
1407 NULL, /* private options block pointer */
1408 NULL, /* driver name */
1409 NULL, /* setup entry point */
1410 1, /* batch_max */
1411 NULL, /* batch_id */
1412 NULL, /* home_dir */
1413 NULL, /* current_dir */
1414 NULL, /* expand-multi-domain */
1415 TRUE, /* multi-domain */
1416 FALSE, /* overrides_hosts */
1417 100, /* max_addresses */
1418 500, /* connection_max_messages */
1419 FALSE, /* deliver_as_creator */
1420 FALSE, /* disable_logging */
1421 FALSE, /* initgroups */
1422 FALSE, /* uid_set */
1423 FALSE, /* gid_set */
1424 (uid_t)(-1), /* uid */
1425 (gid_t)(-1), /* gid */
1426 NULL, /* expand_uid */
1427 NULL, /* expand_gid */
1428 NULL, /* warn_message */
1429 NULL, /* shadow */
1430 NULL, /* shadow_condition */
1431 NULL, /* filter_command */
1432 NULL, /* add_headers */
1433 NULL, /* remove_headers */
1434 NULL, /* return_path */
1435 NULL, /* debug_string */
1436 NULL, /* max_parallel */
1437 NULL, /* message_size_limit */
1438 NULL, /* headers_rewrite */
1439 NULL, /* rewrite_rules */
1440 0, /* rewrite_existflags */
1441 300, /* filter_timeout */
1442 FALSE, /* body_only */
1443 FALSE, /* delivery_date_add */
1444 FALSE, /* envelope_to_add */
1445 FALSE, /* headers_only */
1446 FALSE, /* rcpt_include_affixes */
1447 FALSE, /* return_path_add */
1448 FALSE, /* return_output */
1449 FALSE, /* return_fail_output */
1450 FALSE, /* log_output */
1451 FALSE, /* log_fail_output */
1452 FALSE, /* log_defer_output */
1453 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1454 1 nor 0 so can detect unset */
1455#ifndef DISABLE_EVENT
1456 ,NULL /* event_action */
1457#endif
1458};
1459
1460int transport_count;
1461uschar *transport_name = NULL;
1462int transport_newlines;
1463const uschar **transport_filter_argv = NULL;
1464int transport_filter_timeout;
1465BOOL transport_filter_timed_out = FALSE;
1466int transport_write_timeout= 0;
1467
1468tree_node *tree_dns_fails = NULL;
1469tree_node *tree_duplicates = NULL;
1470tree_node *tree_nonrecipients = NULL;
1471tree_node *tree_unusable = NULL;
1472
1473BOOL trusted_caller = FALSE;
1474BOOL trusted_config = TRUE;
1475gid_t *trusted_groups = NULL;
1476uid_t *trusted_users = NULL;
1477uschar *timezone_string = US TIMEZONE_DEFAULT;
1478
1479uschar *unknown_login = NULL;
1480uschar *unknown_username = NULL;
1481uschar *untrusted_set_sender = NULL;
1482
1483/* A regex for matching a "From_" line in an incoming message, in the form
1484
1485 From ph10 Fri Jan 5 12:35 GMT 1996
1486
1487which the "mail" commands send to the MTA (undocumented, of course), or in
1488the form
1489
1490 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1491
1492which is apparently used by some UUCPs, despite it not being in RFC 976.
1493Because of variations in time formats, just match up to the minutes. That
1494should be sufficient. Examples have been seen of time fields like 12:1:03,
1495so just require one digit for hours and minutes. The weekday is also absent
1496in some forms. */
1497
1498uschar *uucp_from_pattern = US
1499 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1500 "(?:" /* Non-extracting bracket */
1501 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1502 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1503 ")" /* End alternation */
1504 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1505
1506uschar *uucp_from_sender = US"$1";
1507
1508uschar *verify_mode = NULL;
1509uschar *version_copyright =
1510 US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1511 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1512uschar *version_date = US"?";
1513uschar *version_cnumber = US"????";
1514uschar *version_string = US"?";
1515
1516uschar *warn_message_file = NULL;
1517int warning_count = 0;
1518uschar *warnmsg_delay = NULL;
1519uschar *warnmsg_recipients = NULL;
1520BOOL write_rejectlog = TRUE;
1521
1522
1523/* End of globals.c */
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