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[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 - 2018 */
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 = nelem(optionlist_auths);
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. Note that these are
102only used for smtp connections, not for service-daemon access. */
103
104tls_support tls_in = {
105 .active = {.sock = -1},
106 .bits = 0,
107 .certificate_verified = FALSE,
108#ifdef SUPPORT_DANE
109 .dane_verified = FALSE,
110 .tlsa_usage = 0,
111#endif
112 .cipher = NULL,
113 .on_connect = FALSE,
114 .on_connect_ports = NULL,
115 .ourcert = NULL,
116 .peercert = NULL,
117 .peerdn = NULL,
118 .sni = NULL,
119 .ocsp = OCSP_NOT_REQ
120};
121tls_support tls_out = {
122 .active = {.sock = -1},
123 .bits = 0,
124 .certificate_verified = FALSE,
125#ifdef SUPPORT_DANE
126 .dane_verified = FALSE,
127 .tlsa_usage = 0,
128#endif
129 .cipher = NULL,
130 .on_connect = FALSE,
131 .on_connect_ports = NULL,
132 .ourcert = NULL,
133 .peercert = NULL,
134 .peerdn = NULL,
135 .sni = NULL,
136 .ocsp = OCSP_NOT_REQ
137};
138
139uschar *dsn_envid = NULL;
140int dsn_ret = 0;
141const pcre *regex_DSN = NULL;
142uschar *dsn_advertise_hosts = NULL;
143
144#ifdef SUPPORT_TLS
145BOOL gnutls_compat_mode = FALSE;
146BOOL gnutls_allow_auto_pkcs11 = FALSE;
147uschar *openssl_options = NULL;
148const pcre *regex_STARTTLS = NULL;
149uschar *tls_advertise_hosts = US"*";
150uschar *tls_certificate = NULL;
151uschar *tls_crl = NULL;
152/* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
153that's the interop problem which has been observed: GnuTLS suggesting a higher
154bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
155int tls_dh_max_bits = 2236;
156uschar *tls_dhparam = NULL;
157uschar *tls_eccurve = US"auto";
158# ifndef DISABLE_OCSP
159uschar *tls_ocsp_file = NULL;
160# endif
161uschar *tls_privatekey = NULL;
162BOOL tls_remember_esmtp = FALSE;
163uschar *tls_require_ciphers = NULL;
164# ifdef EXPERIMENTAL_REQUIRETLS
165uschar tls_requiretls = 0; /* REQUIRETLS_MSG etc. bit #defines */
166uschar *tls_advertise_requiretls = US"*";
167const pcre *regex_REQUIRETLS = NULL;
168# endif
169uschar *tls_try_verify_hosts = NULL;
170uschar *tls_verify_certificates= US"system";
171uschar *tls_verify_hosts = NULL;
172#else /*!SUPPORT_TLS*/
173uschar *tls_advertise_hosts = NULL;
174#endif
175
176#ifndef DISABLE_PRDR
177/* Per Recipient Data Response variables */
178BOOL prdr_enable = FALSE;
179BOOL prdr_requested = FALSE;
180const pcre *regex_PRDR = NULL;
181#endif
182
183#ifdef SUPPORT_I18N
184const pcre *regex_UTF8 = NULL;
185#endif
186
187/* Input-reading functions for messages, so we can use special ones for
188incoming TCP/IP. The defaults use stdin. We never need these for any
189stand-alone tests. */
190
191#if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
192int (*lwr_receive_getc)(unsigned) = stdin_getc;
193uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
194int (*lwr_receive_ungetc)(int) = stdin_ungetc;
195int (*receive_getc)(unsigned) = stdin_getc;
196uschar * (*receive_getbuf)(unsigned *) = NULL;
197void (*receive_get_cache)(void)= NULL;
198int (*receive_ungetc)(int) = stdin_ungetc;
199int (*receive_feof)(void) = stdin_feof;
200int (*receive_ferror)(void) = stdin_ferror;
201BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
202#endif
203
204
205/* List of per-address expansion variables for clearing and saving/restoring
206when verifying one address while routing/verifying another. We have to have
207the size explicit, because it is referenced from more than one module. */
208
209const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
210 CUSS &deliver_address_data,
211 CUSS &deliver_domain,
212 CUSS &deliver_domain_data,
213 CUSS &deliver_domain_orig,
214 CUSS &deliver_domain_parent,
215 CUSS &deliver_localpart,
216 CUSS &deliver_localpart_data,
217 CUSS &deliver_localpart_orig,
218 CUSS &deliver_localpart_parent,
219 CUSS &deliver_localpart_prefix,
220 CUSS &deliver_localpart_suffix,
221 CUSS (uschar **)(&deliver_recipients),
222 CUSS &deliver_host,
223 CUSS &deliver_home,
224 CUSS &address_file,
225 CUSS &address_pipe,
226 CUSS &self_hostname,
227 NULL };
228
229int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
230
231/* General global variables */
232
233header_line *acl_added_headers = NULL;
234tree_node *acl_anchor = NULL;
235uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
236 NULL, NULL, NULL, NULL};
237int acl_narg = 0;
238
239int acl_level = 0;
240
241uschar *acl_not_smtp = NULL;
242#ifdef WITH_CONTENT_SCAN
243uschar *acl_not_smtp_mime = NULL;
244#endif
245uschar *acl_not_smtp_start = NULL;
246uschar *acl_removed_headers = NULL;
247uschar *acl_smtp_auth = NULL;
248uschar *acl_smtp_connect = NULL;
249uschar *acl_smtp_data = NULL;
250#ifndef DISABLE_PRDR
251uschar *acl_smtp_data_prdr = US"accept";
252#endif
253#ifndef DISABLE_DKIM
254uschar *acl_smtp_dkim = NULL;
255#endif
256uschar *acl_smtp_etrn = NULL;
257uschar *acl_smtp_expn = NULL;
258uschar *acl_smtp_helo = NULL;
259uschar *acl_smtp_mail = NULL;
260uschar *acl_smtp_mailauth = NULL;
261#ifdef WITH_CONTENT_SCAN
262uschar *acl_smtp_mime = NULL;
263#endif
264uschar *acl_smtp_notquit = NULL;
265uschar *acl_smtp_predata = NULL;
266uschar *acl_smtp_quit = NULL;
267uschar *acl_smtp_rcpt = NULL;
268uschar *acl_smtp_starttls = NULL;
269uschar *acl_smtp_vrfy = NULL;
270
271BOOL acl_temp_details = FALSE;
272tree_node *acl_var_c = NULL;
273tree_node *acl_var_m = NULL;
274uschar *acl_verify_message = NULL;
275string_item *acl_warn_logged = NULL;
276
277/* Names of SMTP places for use in ACL error messages, and corresponding SMTP
278error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
279
280uschar *acl_wherenames[] = { US"RCPT",
281 US"MAIL",
282 US"PREDATA",
283 US"MIME",
284 US"DKIM",
285 US"DATA",
286#ifndef DISABLE_PRDR
287 US"PRDR",
288#endif
289 US"non-SMTP",
290 US"AUTH",
291 US"connection",
292 US"ETRN",
293 US"EXPN",
294 US"EHLO or HELO",
295 US"MAILAUTH",
296 US"non-SMTP-start",
297 US"NOTQUIT",
298 US"QUIT",
299 US"STARTTLS",
300 US"VRFY",
301 US"delivery",
302 US"unknown"
303 };
304
305uschar *acl_wherecodes[] = { US"550", /* RCPT */
306 US"550", /* MAIL */
307 US"550", /* PREDATA */
308 US"550", /* MIME */
309 US"550", /* DKIM */
310 US"550", /* DATA */
311#ifndef DISABLE_PRDR
312 US"550", /* RCPT PRDR */
313#endif
314 US"0", /* not SMTP; not relevant */
315 US"503", /* AUTH */
316 US"550", /* connect */
317 US"458", /* ETRN */
318 US"550", /* EXPN */
319 US"550", /* HELO/EHLO */
320 US"0", /* MAILAUTH; not relevant */
321 US"0", /* not SMTP; not relevant */
322 US"0", /* NOTQUIT; not relevant */
323 US"0", /* QUIT; not relevant */
324 US"550", /* STARTTLS */
325 US"252", /* VRFY */
326 US"0", /* delivery; not relevant */
327 US"0" /* unknown; not relevant */
328 };
329
330BOOL active_local_from_check = FALSE;
331BOOL active_local_sender_retain = FALSE;
332BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
333uschar *add_environment = NULL;
334address_item *addr_duplicate = NULL;
335
336address_item address_defaults = {
337 .next = NULL,
338 .parent = NULL,
339 .first = NULL,
340 .dupof = NULL,
341 .start_router = NULL,
342 .router = NULL,
343 .transport = NULL,
344 .host_list = NULL,
345 .host_used = NULL,
346 .fallback_hosts = NULL,
347 .reply = NULL,
348 .retries = NULL,
349 .address = NULL,
350 .unique = NULL,
351 .cc_local_part = NULL,
352 .lc_local_part = NULL,
353 .local_part = NULL,
354 .prefix = NULL,
355 .suffix = NULL,
356 .domain = NULL,
357 .address_retry_key = NULL,
358 .domain_retry_key = NULL,
359 .current_dir = NULL,
360 .home_dir = NULL,
361 .message = NULL,
362 .user_message = NULL,
363 .onetime_parent = NULL,
364 .pipe_expandn = NULL,
365 .return_filename = NULL,
366 .self_hostname = NULL,
367 .shadow_message = NULL,
368#ifdef SUPPORT_TLS
369 .cipher = NULL,
370 .ourcert = NULL,
371 .peercert = NULL,
372 .peerdn = NULL,
373 .ocsp = OCSP_NOT_REQ,
374#endif
375#ifdef EXPERIMENTAL_DSN_INFO
376 .smtp_greeting = NULL,
377 .helo_response = NULL,
378#endif
379 .authenticator = NULL,
380 .auth_id = NULL,
381 .auth_sndr = NULL,
382 .dsn_orcpt = NULL,
383 .dsn_flags = 0,
384 .dsn_aware = 0,
385 .uid = (uid_t)(-1),
386 .gid = (gid_t)(-1),
387 .flags = { 0 },
388 .domain_cache = { 0 }, /* domain_cache - any larger array should be zeroed */
389 .localpart_cache = { 0 }, /* localpart_cache - ditto */
390 .mode = -1,
391 .more_errno = 0,
392 .delivery_usec = 0,
393 .basic_errno = ERRNO_UNKNOWNERROR,
394 .child_count = 0,
395 .return_file = -1,
396 .special_action = SPECIAL_NONE,
397 .transport_return = DEFER,
398 .prop = { /* fields that are propagated to children */
399 .address_data = NULL,
400 .domain_data = NULL,
401 .localpart_data = NULL,
402 .errors_address = NULL,
403 .extra_headers = NULL,
404 .remove_headers = NULL,
405#ifdef EXPERIMENTAL_SRS
406 .srs_sender = NULL,
407#endif
408 .ignore_error = FALSE,
409#ifdef SUPPORT_I18N
410 .utf8_msg = FALSE,
411 .utf8_downcvt = FALSE,
412 .utf8_downcvt_maybe = FALSE
413#endif
414 }
415};
416
417uschar *address_file = NULL;
418uschar *address_pipe = NULL;
419BOOL address_test_mode = FALSE;
420tree_node *addresslist_anchor = NULL;
421int addresslist_count = 0;
422gid_t *admin_groups = NULL;
423BOOL admin_user = FALSE;
424BOOL allow_auth_unadvertised= FALSE;
425BOOL allow_domain_literals = FALSE;
426BOOL allow_mx_to_ip = FALSE;
427BOOL allow_unqualified_recipient = TRUE; /* For local messages */
428BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
429BOOL allow_utf8_domains = FALSE;
430
431#ifdef EXPERIMENTAL_ARC
432struct arc_set *arc_received = NULL;
433int arc_received_instance = 0;
434int arc_oldest_pass = 0;
435const uschar *arc_state = NULL;
436const uschar *arc_state_reason = NULL;
437#endif
438
439uschar *authenticated_fail_id = NULL;
440uschar *authenticated_id = NULL;
441uschar *authenticated_sender = NULL;
442BOOL authentication_failed = FALSE;
443BOOL authentication_local = FALSE;
444auth_instance *auths = NULL;
445uschar *auth_advertise_hosts = US"*";
446auth_instance auth_defaults = {
447 .next = NULL,
448 .name = NULL,
449 .info = NULL,
450 .options_block = NULL,
451 .driver_name = NULL,
452 .advertise_condition = NULL,
453 .client_condition = NULL,
454 .public_name = NULL,
455 .set_id = NULL,
456 .set_client_id = NULL,
457 .mail_auth_condition = NULL,
458 .server_debug_string = NULL,
459 .server_condition = NULL,
460 .client = FALSE,
461 .server = FALSE,
462 .advertised = FALSE
463};
464
465uschar *auth_defer_msg = US"reason not recorded";
466uschar *auth_defer_user_msg = US"";
467uschar *auth_vars[AUTH_VARS];
468int auto_thaw = 0;
469#ifdef WITH_CONTENT_SCAN
470BOOL av_failed = FALSE;
471uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
472#endif
473
474BOOL background_daemon = TRUE;
475
476#if BASE_62 == 62
477uschar *base62_chars=
478 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
479#else
480uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
481#endif
482
483uschar *bi_command = NULL;
484uschar *big_buffer = NULL;
485int big_buffer_size = BIG_BUFFER_SIZE;
486#ifdef EXPERIMENTAL_BRIGHTMAIL
487uschar *bmi_alt_location = NULL;
488uschar *bmi_base64_tracker_verdict = NULL;
489uschar *bmi_base64_verdict = NULL;
490uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
491int bmi_deliver = 1;
492int bmi_run = 0;
493uschar *bmi_verdicts = NULL;
494#endif
495int bsmtp_transaction_linecount = 0;
496int body_8bitmime = 0;
497int body_linecount = 0;
498int body_zerocount = 0;
499uschar *bounce_message_file = NULL;
500uschar *bounce_message_text = NULL;
501uschar *bounce_recipient = NULL;
502BOOL bounce_return_body = TRUE;
503int bounce_return_linesize_limit = 998;
504BOOL bounce_return_message = TRUE;
505int bounce_return_size_limit = 100*1024;
506uschar *bounce_sender_authentication = NULL;
507
508uschar *callout_address = NULL;
509int callout_cache_domain_positive_expire = 7*24*60*60;
510int callout_cache_domain_negative_expire = 3*60*60;
511int callout_cache_positive_expire = 24*60*60;
512int callout_cache_negative_expire = 2*60*60;
513uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
514uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
515int check_log_inodes = 100;
516int check_log_space = 10*1024; /* 10K Kbyte == 10MB */
517BOOL check_rfc2047_length = TRUE;
518int check_spool_inodes = 100;
519int check_spool_space = 10*1024; /* 10K Kbyte == 10MB */
520
521uschar *chunking_advertise_hosts = US"*";
522unsigned chunking_datasize = 0;
523unsigned chunking_data_left = 0;
524BOOL chunking_offered = FALSE;
525chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
526const pcre *regex_CHUNKING = NULL;
527
528uschar *client_authenticator = NULL;
529uschar *client_authenticated_id = NULL;
530uschar *client_authenticated_sender = NULL;
531int clmacro_count = 0;
532uschar *clmacros[MAX_CLMACROS];
533BOOL commandline_checks_require_admin = FALSE;
534BOOL config_changed = FALSE;
535FILE *config_file = NULL;
536const uschar *config_filename = NULL;
537int config_lineno = 0;
538#ifdef CONFIGURE_GROUP
539gid_t config_gid = CONFIGURE_GROUP;
540#else
541gid_t config_gid = 0;
542#endif
543uschar *config_main_filelist = US CONFIGURE_FILE
544 "\0<-----------Space to patch configure_filename->";
545uschar *config_main_filename = NULL;
546uschar *config_main_directory = NULL;
547
548#ifdef CONFIGURE_OWNER
549uid_t config_uid = CONFIGURE_OWNER;
550#else
551uid_t config_uid = 0;
552#endif
553
554int connection_max_messages= -1;
555uschar *continue_proxy_cipher = NULL;
556uschar *continue_hostname = NULL;
557uschar *continue_host_address = NULL;
558BOOL continue_more = FALSE;
559int continue_sequence = 1;
560uschar *continue_transport = NULL;
561
562uschar *csa_status = NULL;
563cut_t cutthrough = {
564 .callout_hold_only = FALSE, /* verify-only: normal delivery */
565 .delivery = FALSE, /* when to attempt */
566 .defer_pass = FALSE, /* on defer: spool locally */
567 .is_tls = FALSE, /* not a TLS conn yet */
568 .cctx = {.sock = -1}, /* open connection */
569 .nrcpt = 0, /* number of addresses */
570};
571
572BOOL daemon_listen = FALSE;
573uschar *daemon_smtp_port = US"smtp";
574int daemon_startup_retries = 9;
575int daemon_startup_sleep = 30;
576
577#ifdef EXPERIMENTAL_DCC
578BOOL dcc_direct_add_header = FALSE;
579uschar *dcc_header = NULL;
580uschar *dcc_result = NULL;
581uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
582uschar *dccifd_options = US"header";
583#endif
584
585BOOL debug_daemon = FALSE;
586int debug_fd = -1;
587FILE *debug_file = NULL;
588int debug_notall[] = {
589 Di_memory,
590 -1
591};
592bit_table debug_options[] = { /* must be in alphabetical order */
593 BIT_TABLE(D, acl),
594 BIT_TABLE(D, all),
595 BIT_TABLE(D, auth),
596 BIT_TABLE(D, deliver),
597 BIT_TABLE(D, dns),
598 BIT_TABLE(D, dnsbl),
599 BIT_TABLE(D, exec),
600 BIT_TABLE(D, expand),
601 BIT_TABLE(D, filter),
602 BIT_TABLE(D, hints_lookup),
603 BIT_TABLE(D, host_lookup),
604 BIT_TABLE(D, ident),
605 BIT_TABLE(D, interface),
606 BIT_TABLE(D, lists),
607 BIT_TABLE(D, load),
608 BIT_TABLE(D, local_scan),
609 BIT_TABLE(D, lookup),
610 BIT_TABLE(D, memory),
611 BIT_TABLE(D, pid),
612 BIT_TABLE(D, process_info),
613 BIT_TABLE(D, queue_run),
614 BIT_TABLE(D, receive),
615 BIT_TABLE(D, resolver),
616 BIT_TABLE(D, retry),
617 BIT_TABLE(D, rewrite),
618 BIT_TABLE(D, route),
619 BIT_TABLE(D, timestamp),
620 BIT_TABLE(D, tls),
621 BIT_TABLE(D, transport),
622 BIT_TABLE(D, uid),
623 BIT_TABLE(D, verify),
624};
625int debug_options_count = nelem(debug_options);
626
627unsigned int debug_selector = 0;
628BOOL debug_store = FALSE;
629int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
630uschar *delay_warning_condition=
631 US"${if or {"
632 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
633 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
634 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
635 "} {no}{yes}}";
636BOOL delivery_date_remove = TRUE;
637uschar *deliver_address_data = NULL;
638int deliver_datafile = -1;
639const uschar *deliver_domain = NULL;
640uschar *deliver_domain_data = NULL;
641const uschar *deliver_domain_orig = NULL;
642const uschar *deliver_domain_parent = NULL;
643BOOL deliver_drop_privilege = FALSE;
644BOOL deliver_firsttime = FALSE;
645BOOL deliver_force = FALSE;
646BOOL deliver_freeze = FALSE;
647time_t deliver_frozen_at = 0;
648uschar *deliver_home = NULL;
649const uschar *deliver_host = NULL;
650const uschar *deliver_host_address = NULL;
651int deliver_host_port = 0;
652uschar *deliver_in_buffer = NULL;
653ino_t deliver_inode = 0;
654uschar *deliver_localpart = NULL;
655uschar *deliver_localpart_data = NULL;
656uschar *deliver_localpart_orig = NULL;
657uschar *deliver_localpart_parent = NULL;
658uschar *deliver_localpart_prefix = NULL;
659uschar *deliver_localpart_suffix = NULL;
660BOOL deliver_force_thaw = FALSE;
661BOOL deliver_manual_thaw = FALSE;
662uschar *deliver_out_buffer = NULL;
663int deliver_queue_load_max = -1;
664address_item *deliver_recipients = NULL;
665uschar *deliver_selectstring = NULL;
666BOOL deliver_selectstring_regex = FALSE;
667uschar *deliver_selectstring_sender = NULL;
668BOOL deliver_selectstring_sender_regex = FALSE;
669BOOL disable_callout_flush = FALSE;
670BOOL disable_delay_flush = FALSE;
671#ifdef ENABLE_DISABLE_FSYNC
672BOOL disable_fsync = FALSE;
673#endif
674BOOL disable_ipv6 = FALSE;
675BOOL disable_logging = FALSE;
676
677#ifndef DISABLE_DKIM
678unsigned dkim_collect_input = 0;
679uschar *dkim_cur_signer = NULL;
680BOOL dkim_disable_verify = FALSE;
681int dkim_key_length = 0;
682void *dkim_signatures = NULL;
683uschar *dkim_signers = NULL;
684uschar *dkim_signing_domain = NULL;
685uschar *dkim_signing_selector = NULL;
686uschar *dkim_verify_overall = NULL;
687uschar *dkim_verify_signers = US"$dkim_signers";
688uschar *dkim_verify_status = NULL;
689uschar *dkim_verify_reason = NULL;
690#endif
691#ifdef EXPERIMENTAL_DMARC
692BOOL dmarc_has_been_checked = FALSE;
693uschar *dmarc_domain_policy = NULL;
694uschar *dmarc_forensic_sender = NULL;
695uschar *dmarc_history_file = NULL;
696uschar *dmarc_status = NULL;
697uschar *dmarc_status_text = NULL;
698uschar *dmarc_tld_file = NULL;
699uschar *dmarc_used_domain = NULL;
700BOOL dmarc_disable_verify = FALSE;
701BOOL dmarc_enable_forensic = FALSE;
702#endif
703
704uschar *dns_again_means_nonexist = NULL;
705int dns_csa_search_limit = 5;
706BOOL dns_csa_use_reverse = TRUE;
707int dns_cname_loops = 1;
708#ifdef SUPPORT_DANE
709int dns_dane_ok = -1;
710#endif
711uschar *dns_ipv4_lookup = NULL;
712int dns_retrans = 0;
713int dns_retry = 0;
714int dns_dnssec_ok = -1; /* <0 = not coerced */
715uschar *dns_trust_aa = NULL;
716int dns_use_edns0 = -1; /* <0 = not coerced */
717uschar *dnslist_domain = NULL;
718uschar *dnslist_matched = NULL;
719uschar *dnslist_text = NULL;
720uschar *dnslist_value = NULL;
721tree_node *domainlist_anchor = NULL;
722int domainlist_count = 0;
723BOOL dont_deliver = FALSE;
724BOOL dot_ends = TRUE;
725BOOL drop_cr = FALSE; /* No longer used */
726uschar *dsn_from = US DEFAULT_DSN_FROM;
727
728BOOL enable_dollar_recipients = FALSE;
729BOOL envelope_to_remove = TRUE;
730int errno_quota = ERRNO_QUOTA;
731uschar *errors_copy = NULL;
732int error_handling = ERRORS_SENDER;
733uschar *errors_reply_to = NULL;
734int errors_sender_rc = EXIT_FAILURE;
735#ifndef DISABLE_EVENT
736uschar *event_action = NULL; /* expansion for delivery events */
737uschar *event_data = NULL; /* auxiliary data variable for event */
738int event_defer_errno = 0;
739const uschar *event_name = NULL; /* event name variable */
740#endif
741
742
743gid_t exim_gid = EXIM_GID;
744BOOL exim_gid_set = TRUE; /* This gid is always set */
745uschar *exim_path = US BIN_DIRECTORY "/exim"
746 "\0<---------------Space to patch exim_path->";
747uid_t exim_uid = EXIM_UID;
748BOOL exim_uid_set = TRUE; /* This uid is always set */
749int expand_level = 0; /* Nesting depth, indent for debug */
750int expand_forbid = 0;
751int expand_nlength[EXPAND_MAXN+1];
752int expand_nmax = -1;
753uschar *expand_nstring[EXPAND_MAXN+1];
754BOOL expand_string_forcedfail = FALSE;
755uschar *expand_string_message;
756BOOL extract_addresses_remove_arguments = TRUE;
757uschar *extra_local_interfaces = NULL;
758
759int fake_response = OK;
760uschar *fake_response_text = US"Your message has been rejected but is "
761 "being kept for evaluation.\nIf it was a "
762 "legitimate message, it may still be "
763 "delivered to the target recipient(s).";
764int filter_n[FILTER_VARIABLE_COUNT];
765BOOL filter_running = FALSE;
766int filter_sn[FILTER_VARIABLE_COUNT];
767int filter_test = FTEST_NONE;
768uschar *filter_test_sfile = NULL;
769uschar *filter_test_ufile = NULL;
770uschar *filter_thisaddress = NULL;
771int finduser_retries = 0;
772uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
773uschar *freeze_tell = NULL;
774uschar *freeze_tell_config = NULL;
775uschar *fudged_queue_times = US"";
776
777uschar *gecos_name = NULL;
778uschar *gecos_pattern = NULL;
779rewrite_rule *global_rewrite_rules = NULL;
780
781volatile sig_atomic_t had_command_timeout = 0;
782volatile sig_atomic_t had_command_sigterm = 0;
783volatile sig_atomic_t had_data_timeout = 0;
784volatile sig_atomic_t had_data_sigint = 0;
785uschar *headers_charset = US HEADERS_CHARSET;
786int header_insert_maxlen = 64 * 1024;
787header_line *header_last = NULL;
788header_line *header_list = NULL;
789int header_maxsize = HEADER_MAXSIZE;
790int header_line_maxsize = 0;
791
792header_name header_names[] = {
793 /* name len allow_resent htype */
794 { US"bcc", 3, TRUE, htype_bcc },
795 { US"cc", 2, TRUE, htype_cc },
796 { US"date", 4, TRUE, htype_date },
797 { US"delivery-date", 13, FALSE, htype_delivery_date },
798 { US"envelope-to", 11, FALSE, htype_envelope_to },
799 { US"from", 4, TRUE, htype_from },
800 { US"message-id", 10, TRUE, htype_id },
801 { US"received", 8, FALSE, htype_received },
802 { US"reply-to", 8, FALSE, htype_reply_to },
803 { US"return-path", 11, FALSE, htype_return_path },
804 { US"sender", 6, TRUE, htype_sender },
805 { US"subject", 7, FALSE, htype_subject },
806 { US"to", 2, TRUE, htype_to }
807};
808
809int header_names_size = nelem(header_names);
810
811BOOL header_rewritten = FALSE;
812uschar *helo_accept_junk_hosts = NULL;
813uschar *helo_allow_chars = US"";
814uschar *helo_lookup_domains = US"@ : @[]";
815uschar *helo_try_verify_hosts = NULL;
816BOOL helo_verified = FALSE;
817BOOL helo_verify_failed = FALSE;
818uschar *helo_verify_hosts = NULL;
819const uschar *hex_digits = CUS"0123456789abcdef";
820uschar *hold_domains = NULL;
821BOOL host_checking = FALSE;
822BOOL host_checking_callout = FALSE;
823uschar *host_data = NULL;
824BOOL host_find_failed_syntax= FALSE;
825uschar *host_lookup = NULL;
826BOOL host_lookup_deferred = FALSE;
827BOOL host_lookup_failed = FALSE;
828uschar *host_lookup_order = US"bydns:byaddr";
829uschar *host_lookup_msg = US"";
830int host_number = 0;
831uschar *host_number_string = NULL;
832uschar *host_reject_connection = NULL;
833tree_node *hostlist_anchor = NULL;
834int hostlist_count = 0;
835uschar *hosts_treat_as_local = NULL;
836uschar *hosts_connection_nolog = NULL;
837
838int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
839BOOL ignore_fromline_local = FALSE;
840uschar *ignore_fromline_hosts = NULL;
841BOOL inetd_wait_mode = FALSE;
842int inetd_wait_timeout = -1;
843uschar *initial_cwd = NULL;
844uschar *interface_address = NULL;
845int interface_port = -1;
846BOOL is_inetd = FALSE;
847uschar *iterate_item = NULL;
848
849int journal_fd = -1;
850
851uschar *keep_environment = NULL;
852
853int keep_malformed = 4*24*60*60; /* 4 days */
854
855uschar *eldap_dn = NULL;
856int load_average = -2;
857BOOL local_error_message = FALSE;
858BOOL local_from_check = TRUE;
859uschar *local_from_prefix = NULL;
860uschar *local_from_suffix = NULL;
861
862#if HAVE_IPV6
863uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
864#else
865uschar *local_interfaces = US"0.0.0.0";
866#endif
867
868#ifdef HAVE_LOCAL_SCAN
869uschar *local_scan_data = NULL;
870int local_scan_timeout = 5*60;
871#endif
872BOOL local_sender_retain = FALSE;
873gid_t local_user_gid = (gid_t)(-1);
874uid_t local_user_uid = (uid_t)(-1);
875
876tree_node *localpartlist_anchor= NULL;
877int localpartlist_count = 0;
878uschar *log_buffer = NULL;
879
880int log_default[] = { /* for initializing log_selector */
881 Li_acl_warn_skipped,
882 Li_connection_reject,
883 Li_delay_delivery,
884 Li_dkim,
885 Li_dnslist_defer,
886 Li_etrn,
887 Li_host_lookup_failed,
888 Li_lost_incoming_connection,
889 Li_outgoing_interface, /* see d_log_interface in deliver.c */
890 Li_queue_run,
891 Li_rejected_header,
892 Li_retry_defer,
893 Li_sender_verify_fail,
894 Li_size_reject,
895 Li_skip_delivery,
896 Li_smtp_confirmation,
897 Li_tls_certificate_verified,
898 Li_tls_cipher,
899 -1
900};
901
902uschar *log_file_path = US LOG_FILE_PATH
903 "\0<--------------Space to patch log_file_path->";
904
905int log_notall[] = {
906 -1
907};
908bit_table log_options[] = { /* must be in alphabetical order */
909 BIT_TABLE(L, 8bitmime),
910 BIT_TABLE(L, acl_warn_skipped),
911 BIT_TABLE(L, address_rewrite),
912 BIT_TABLE(L, all),
913 BIT_TABLE(L, all_parents),
914 BIT_TABLE(L, arguments),
915 BIT_TABLE(L, connection_reject),
916 BIT_TABLE(L, delay_delivery),
917 BIT_TABLE(L, deliver_time),
918 BIT_TABLE(L, delivery_size),
919#ifndef DISABLE_DKIM
920 BIT_TABLE(L, dkim),
921 BIT_TABLE(L, dkim_verbose),
922#endif
923 BIT_TABLE(L, dnslist_defer),
924 BIT_TABLE(L, dnssec),
925 BIT_TABLE(L, etrn),
926 BIT_TABLE(L, host_lookup_failed),
927 BIT_TABLE(L, ident_timeout),
928 BIT_TABLE(L, incoming_interface),
929 BIT_TABLE(L, incoming_port),
930 BIT_TABLE(L, lost_incoming_connection),
931 BIT_TABLE(L, millisec),
932 BIT_TABLE(L, outgoing_interface),
933 BIT_TABLE(L, outgoing_port),
934 BIT_TABLE(L, pid),
935 BIT_TABLE(L, pipelining),
936#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
937 BIT_TABLE(L, proxy),
938#endif
939 BIT_TABLE(L, queue_run),
940 BIT_TABLE(L, queue_time),
941 BIT_TABLE(L, queue_time_overall),
942 BIT_TABLE(L, receive_time),
943 BIT_TABLE(L, received_recipients),
944 BIT_TABLE(L, received_sender),
945 BIT_TABLE(L, rejected_header),
946 { US"rejected_headers", Li_rejected_header },
947 BIT_TABLE(L, retry_defer),
948 BIT_TABLE(L, return_path_on_delivery),
949 BIT_TABLE(L, sender_on_delivery),
950 BIT_TABLE(L, sender_verify_fail),
951 BIT_TABLE(L, size_reject),
952 BIT_TABLE(L, skip_delivery),
953 BIT_TABLE(L, smtp_confirmation),
954 BIT_TABLE(L, smtp_connection),
955 BIT_TABLE(L, smtp_incomplete_transaction),
956 BIT_TABLE(L, smtp_mailauth),
957 BIT_TABLE(L, smtp_no_mail),
958 BIT_TABLE(L, smtp_protocol_error),
959 BIT_TABLE(L, smtp_syntax_error),
960 BIT_TABLE(L, subject),
961 BIT_TABLE(L, tls_certificate_verified),
962 BIT_TABLE(L, tls_cipher),
963 BIT_TABLE(L, tls_peerdn),
964 BIT_TABLE(L, tls_sni),
965 BIT_TABLE(L, unknown_in_list),
966};
967int log_options_count = nelem(log_options);
968
969int log_reject_target = 0;
970unsigned int log_selector[log_selector_size]; /* initialized in main() */
971uschar *log_selector_string = NULL;
972FILE *log_stderr = NULL;
973BOOL log_testing_mode = FALSE;
974BOOL log_timezone = FALSE;
975uschar *login_sender_address = NULL;
976uschar *lookup_dnssec_authenticated = NULL;
977int lookup_open_max = 25;
978uschar *lookup_value = NULL;
979
980macro_item *macros_user = NULL;
981uschar *mailstore_basename = NULL;
982#ifdef WITH_CONTENT_SCAN
983uschar *malware_name = NULL; /* Virus Name */
984#endif
985int max_received_linelength= 0;
986int max_username_length = 0;
987int message_age = 0;
988uschar *message_body = NULL;
989uschar *message_body_end = NULL;
990BOOL message_body_newlines = FALSE;
991int message_body_size = 0;
992int message_body_visible = 500;
993int message_ended = END_NOTSTARTED;
994uschar *message_headers = NULL;
995uschar *message_id;
996uschar *message_id_domain = NULL;
997uschar *message_id_text = NULL;
998struct timeval message_id_tv = { 0, 0 };
999uschar message_id_option[MESSAGE_ID_LENGTH + 3];
1000uschar *message_id_external;
1001int message_linecount = 0;
1002BOOL message_logs = TRUE;
1003int message_size = 0;
1004uschar *message_size_limit = US"50M";
1005#ifdef SUPPORT_I18N
1006BOOL message_smtputf8 = FALSE;
1007int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
1008#endif
1009uschar message_subdir[2] = { 0, 0 };
1010uschar *message_reference = NULL;
1011
1012/* MIME ACL expandables */
1013#ifdef WITH_CONTENT_SCAN
1014int mime_anomaly_level = 0;
1015const uschar *mime_anomaly_text = NULL;
1016uschar *mime_boundary = NULL;
1017uschar *mime_charset = NULL;
1018uschar *mime_content_description = NULL;
1019uschar *mime_content_disposition = NULL;
1020uschar *mime_content_id = NULL;
1021unsigned int mime_content_size = 0;
1022uschar *mime_content_transfer_encoding = NULL;
1023uschar *mime_content_type = NULL;
1024uschar *mime_decoded_filename = NULL;
1025uschar *mime_filename = NULL;
1026int mime_is_multipart = 0;
1027int mime_is_coverletter = 0;
1028int mime_is_rfc822 = 0;
1029int mime_part_count = -1;
1030#endif
1031
1032BOOL mua_wrapper = FALSE;
1033
1034uid_t *never_users = NULL;
1035#ifdef WITH_CONTENT_SCAN
1036BOOL no_mbox_unspool = FALSE;
1037#endif
1038BOOL no_multiline_responses = FALSE;
1039
1040const int on = 1; /* for setsockopt */
1041const int off = 0;
1042
1043uid_t original_euid;
1044gid_t originator_gid;
1045uschar *originator_login = NULL;
1046uschar *originator_name = NULL;
1047uid_t originator_uid;
1048uschar *override_local_interfaces = NULL;
1049uschar *override_pid_file_path = NULL;
1050
1051BOOL parse_allow_group = FALSE;
1052BOOL parse_found_group = FALSE;
1053uschar *percent_hack_domains = NULL;
1054uschar *pid_file_path = US PID_FILE_PATH
1055 "\0<--------------Space to patch pid_file_path->";
1056BOOL pipelining_enable = TRUE;
1057uschar *pipelining_advertise_hosts = US"*";
1058BOOL preserve_message_logs = FALSE;
1059uschar *primary_hostname = NULL;
1060BOOL print_topbitchars = FALSE;
1061uschar process_info[PROCESS_INFO_SIZE];
1062int process_info_len = 0;
1063uschar *process_log_path = NULL;
1064BOOL prod_requires_admin = TRUE;
1065
1066#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1067uschar *hosts_proxy = US"";
1068uschar *proxy_external_address = US"";
1069int proxy_external_port = 0;
1070uschar *proxy_local_address = US"";
1071int proxy_local_port = 0;
1072BOOL proxy_session = FALSE;
1073BOOL proxy_session_failed = FALSE;
1074#endif
1075
1076uschar *prvscheck_address = NULL;
1077uschar *prvscheck_keynum = NULL;
1078uschar *prvscheck_result = NULL;
1079
1080
1081const uschar *qualify_domain_recipient = NULL;
1082uschar *qualify_domain_sender = NULL;
1083BOOL queue_2stage = FALSE;
1084uschar *queue_domains = NULL;
1085int queue_interval = -1;
1086BOOL queue_list_requires_admin = TRUE;
1087uschar *queue_name = US"";
1088BOOL queue_only = FALSE;
1089uschar *queue_only_file = NULL;
1090int queue_only_load = -1;
1091BOOL queue_only_load_latch = TRUE;
1092BOOL queue_only_override = TRUE;
1093BOOL queue_only_policy = FALSE;
1094BOOL queue_run_first_delivery = FALSE;
1095BOOL queue_run_force = FALSE;
1096BOOL queue_run_in_order = FALSE;
1097BOOL queue_run_local = FALSE;
1098uschar *queue_run_max = US"5";
1099pid_t queue_run_pid = (pid_t)0;
1100int queue_run_pipe = -1;
1101BOOL queue_running = FALSE;
1102BOOL queue_smtp = FALSE;
1103uschar *queue_smtp_domains = NULL;
1104
1105unsigned int random_seed = 0;
1106tree_node *ratelimiters_cmd = NULL;
1107tree_node *ratelimiters_conn = NULL;
1108tree_node *ratelimiters_mail = NULL;
1109uschar *raw_active_hostname = NULL;
1110uschar *raw_sender = NULL;
1111uschar **raw_recipients = NULL;
1112int raw_recipients_count = 0;
1113
1114int rcpt_count = 0;
1115int rcpt_fail_count = 0;
1116int rcpt_defer_count = 0;
1117gid_t real_gid;
1118uid_t real_uid;
1119BOOL really_exim = TRUE;
1120BOOL receive_call_bombout = FALSE;
1121int receive_linecount = 0;
1122int receive_messagecount = 0;
1123int receive_timeout = 0;
1124int received_count = 0;
1125uschar *received_for = NULL;
1126
1127/* This is the default text for Received headers generated by Exim. The
1128date will be automatically added on the end. */
1129
1130uschar *received_header_text = US
1131 "Received: "
1132 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1133 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1134 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1135 "by $primary_hostname "
1136 "${if def:received_protocol {with $received_protocol}} "
1137 #ifdef SUPPORT_TLS
1138 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1139 #endif
1140 "(Exim $version_number)\n\t"
1141 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1142 "id $message_exim_id"
1143 "${if def:received_for {\n\tfor $received_for}}"
1144 "\0<---------------Space to patch received_header_text->";
1145
1146int received_headers_max = 30;
1147uschar *received_protocol = NULL;
1148struct timeval received_time = { 0, 0 };
1149struct timeval received_time_taken = { 0, 0 };
1150uschar *recipient_data = NULL;
1151uschar *recipient_unqualified_hosts = NULL;
1152uschar *recipient_verify_failure = NULL;
1153int recipients_count = 0;
1154BOOL recipients_discarded = FALSE;
1155recipient_item *recipients_list = NULL;
1156int recipients_list_max = 0;
1157int recipients_max = 0;
1158BOOL recipients_max_reject = FALSE;
1159const pcre *regex_AUTH = NULL;
1160const pcre *regex_check_dns_names = NULL;
1161const pcre *regex_From = NULL;
1162const pcre *regex_IGNOREQUOTA = NULL;
1163const pcre *regex_PIPELINING = NULL;
1164const pcre *regex_SIZE = NULL;
1165const pcre *regex_ismsgid = NULL;
1166const pcre *regex_smtp_code = NULL;
1167uschar *regex_vars[REGEX_VARS];
1168#ifdef WHITELIST_D_MACROS
1169const pcre *regex_whitelisted_macro = NULL;
1170#endif
1171#ifdef WITH_CONTENT_SCAN
1172uschar *regex_match_string = NULL;
1173#endif
1174int remote_delivery_count = 0;
1175int remote_max_parallel = 2;
1176uschar *remote_sort_domains = NULL;
1177int retry_data_expire = 7*24*60*60;
1178int retry_interval_max = 24*60*60;
1179int retry_maximum_timeout = 0; /* set from retry config */
1180retry_config *retries = NULL;
1181uschar *return_path = NULL;
1182BOOL return_path_remove = TRUE;
1183int rewrite_existflags = 0;
1184uschar *rfc1413_hosts = US"@[]";
1185int rfc1413_query_timeout = 0;
1186/* BOOL rfc821_domains = FALSE; <<< on the way out */
1187uid_t root_gid = ROOT_GID;
1188uid_t root_uid = ROOT_UID;
1189
1190router_instance *routers = NULL;
1191router_instance router_defaults = {
1192 .next = NULL,
1193 .name = NULL,
1194 .info = NULL,
1195 .options_block = NULL,
1196 .driver_name = NULL,
1197
1198 .address_data = NULL,
1199#ifdef EXPERIMENTAL_BRIGHTMAIL
1200 .bmi_rule = NULL,
1201#endif
1202 .cannot_route_message = NULL,
1203 .condition = NULL,
1204 .current_directory = NULL,
1205 .debug_string = NULL,
1206 .domains = NULL,
1207 .errors_to = NULL,
1208 .expand_gid = NULL,
1209 .expand_uid = NULL,
1210 .expand_more = NULL,
1211 .expand_unseen = NULL,
1212 .extra_headers = NULL,
1213 .fallback_hosts = NULL,
1214 .home_directory = NULL,
1215 .ignore_target_hosts = NULL,
1216 .local_parts = NULL,
1217 .pass_router_name = NULL,
1218 .prefix = NULL,
1219 .redirect_router_name = NULL,
1220 .remove_headers = NULL,
1221 .require_files = NULL,
1222 .router_home_directory = NULL,
1223 .self = US"freeze",
1224 .senders = NULL,
1225 .suffix = NULL,
1226 .translate_ip_address = NULL,
1227 .transport_name = NULL,
1228
1229 .address_test = TRUE,
1230#ifdef EXPERIMENTAL_BRIGHTMAIL
1231 .bmi_deliver_alternate = FALSE,
1232 .bmi_deliver_default = FALSE,
1233 .bmi_dont_deliver = FALSE,
1234#endif
1235 .expn = TRUE,
1236 .caseful_local_part = FALSE,
1237 .check_local_user = FALSE,
1238 .disable_logging = FALSE,
1239 .fail_verify_recipient = FALSE,
1240 .fail_verify_sender = FALSE,
1241 .gid_set = FALSE,
1242 .initgroups = FALSE,
1243 .log_as_local = TRUE_UNSET,
1244 .more = TRUE,
1245 .pass_on_timeout = FALSE,
1246 .prefix_optional = FALSE,
1247 .repeat_use = TRUE,
1248 .retry_use_local_part = TRUE_UNSET,
1249 .same_domain_copy_routing = FALSE,
1250 .self_rewrite = FALSE,
1251 .suffix_optional = FALSE,
1252 .verify_only = FALSE,
1253 .verify_recipient = TRUE,
1254 .verify_sender = TRUE,
1255 .uid_set = FALSE,
1256 .unseen = FALSE,
1257 .dsn_lasthop = FALSE,
1258
1259 .self_code = self_freeze,
1260 .uid = (uid_t)(-1),
1261 .gid = (gid_t)(-1),
1262
1263 .fallback_hostlist = NULL,
1264 .transport = NULL,
1265 .pass_router = NULL,
1266 .redirect_router = NULL,
1267
1268 .dnssec = { NULL, NULL }, /* dnssec_domains {require,request} */
1269};
1270
1271uschar *router_name = NULL;
1272
1273ip_address_item *running_interfaces = NULL;
1274BOOL running_in_test_harness = FALSE;
1275
1276/* This is a weird one. The following string gets patched in the binary by the
1277script that sets up a copy of Exim for running in the test harness. It seems
1278that compilers are now clever, and share constant strings if they can.
1279Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1280make use of the end of this string in order to save space. So the patching then
1281wrecks this. We defeat this optimization by adding some additional characters
1282onto the end of the string. */
1283
1284uschar *running_status = US">>>running<<<" "\0EXTRA";
1285
1286int runrc = 0;
1287
1288uschar *search_error_message = NULL;
1289BOOL search_find_defer = FALSE;
1290uschar *self_hostname = NULL;
1291uschar *sender_address = NULL;
1292unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1293uschar *sender_address_data = NULL;
1294BOOL sender_address_forced = FALSE;
1295uschar *sender_address_unrewritten = NULL;
1296uschar *sender_data = NULL;
1297unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1298uschar *sender_fullhost = NULL;
1299BOOL sender_helo_dnssec = FALSE;
1300uschar *sender_helo_name = NULL;
1301uschar **sender_host_aliases = &no_aliases;
1302uschar *sender_host_address = NULL;
1303uschar *sender_host_authenticated = NULL;
1304uschar *sender_host_auth_pubname = NULL;
1305unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1306BOOL sender_host_dnssec = FALSE;
1307uschar *sender_host_name = NULL;
1308int sender_host_port = 0;
1309BOOL sender_host_notsocket = FALSE;
1310BOOL sender_host_unknown = FALSE;
1311uschar *sender_ident = NULL;
1312BOOL sender_local = FALSE;
1313BOOL sender_name_forced = FALSE;
1314uschar *sender_rate = NULL;
1315uschar *sender_rate_limit = NULL;
1316uschar *sender_rate_period = NULL;
1317uschar *sender_rcvhost = NULL;
1318BOOL sender_set_untrusted = FALSE;
1319uschar *sender_unqualified_hosts = NULL;
1320uschar *sender_verify_failure = NULL;
1321address_item *sender_verified_list = NULL;
1322address_item *sender_verified_failed = NULL;
1323int sender_verified_rc = -1;
1324BOOL sender_verified_responded = FALSE;
1325uschar *sending_ip_address = NULL;
1326int sending_port = -1;
1327SIGNAL_BOOL sigalrm_seen = FALSE;
1328uschar **sighup_argv = NULL;
1329int slow_lookup_log = 0; /* millisecs, zero disables */
1330int smtp_accept_count = 0;
1331BOOL smtp_accept_keepalive = TRUE;
1332int smtp_accept_max = 20;
1333int smtp_accept_max_nonmail= 10;
1334uschar *smtp_accept_max_nonmail_hosts = US"*";
1335int smtp_accept_max_per_connection = 1000;
1336uschar *smtp_accept_max_per_host = NULL;
1337int smtp_accept_queue = 0;
1338int smtp_accept_queue_per_connection = 10;
1339int smtp_accept_reserve = 0;
1340uschar *smtp_active_hostname = NULL;
1341BOOL smtp_authenticated = FALSE;
1342uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1343 "Exim $version_number $tod_full"
1344 "\0<---------------Space to patch smtp_banner->";
1345BOOL smtp_batched_input = FALSE;
1346BOOL smtp_check_spool_space = TRUE;
1347int smtp_ch_index = 0;
1348uschar *smtp_cmd_argument = NULL;
1349uschar *smtp_cmd_buffer = NULL;
1350struct timeval smtp_connection_start = {0,0};
1351uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1352int smtp_connect_backlog = 20;
1353double smtp_delay_mail = 0.0;
1354double smtp_delay_rcpt = 0.0;
1355BOOL smtp_enforce_sync = TRUE;
1356FILE *smtp_in = NULL;
1357BOOL smtp_in_pipelining_advertised = FALSE;
1358BOOL smtp_in_pipelining_used = FALSE;
1359BOOL smtp_input = FALSE;
1360int smtp_load_reserve = -1;
1361int smtp_mailcmd_count = 0;
1362FILE *smtp_out = NULL;
1363uschar *smtp_etrn_command = NULL;
1364BOOL smtp_etrn_serialize = TRUE;
1365int smtp_max_synprot_errors= 3;
1366int smtp_max_unknown_commands = 3;
1367uschar *smtp_notquit_reason = NULL;
1368uschar *smtp_ratelimit_hosts = NULL;
1369uschar *smtp_ratelimit_mail = NULL;
1370uschar *smtp_ratelimit_rcpt = NULL;
1371uschar *smtp_read_error = US"";
1372int smtp_receive_timeout = 5*60;
1373uschar *smtp_receive_timeout_s = NULL;
1374uschar *smtp_reserve_hosts = NULL;
1375BOOL smtp_return_error_details = FALSE;
1376int smtp_rlm_base = 0;
1377double smtp_rlm_factor = 0.0;
1378int smtp_rlm_limit = 0;
1379int smtp_rlm_threshold = INT_MAX;
1380int smtp_rlr_base = 0;
1381double smtp_rlr_factor = 0.0;
1382int smtp_rlr_limit = 0;
1383int smtp_rlr_threshold = INT_MAX;
1384unsigned smtp_peer_options = 0;
1385unsigned smtp_peer_options_wrap= 0;
1386#ifdef SUPPORT_I18N
1387uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1388#endif
1389
1390#ifdef WITH_CONTENT_SCAN
1391uschar *spamd_address = US"127.0.0.1 783";
1392uschar *spam_bar = NULL;
1393uschar *spam_report = NULL;
1394uschar *spam_action = NULL;
1395uschar *spam_score = NULL;
1396uschar *spam_score_int = NULL;
1397#endif
1398#ifdef SUPPORT_SPF
1399uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1400uschar *spf_header_comment = NULL;
1401uschar *spf_received = NULL;
1402uschar *spf_result = NULL;
1403BOOL spf_result_guessed = FALSE;
1404uschar *spf_smtp_comment = NULL;
1405#endif
1406
1407BOOL split_spool_directory = FALSE;
1408FILE *spool_data_file = NULL;
1409uschar *spool_directory = US SPOOL_DIRECTORY
1410 "\0<--------------Space to patch spool_directory->";
1411BOOL spool_file_wireformat = FALSE;
1412BOOL spool_wireformat = FALSE;
1413#ifdef EXPERIMENTAL_SRS
1414uschar *srs_config = NULL;
1415uschar *srs_db_address = NULL;
1416uschar *srs_db_key = NULL;
1417int srs_hashlength = 6;
1418int srs_hashmin = -1;
1419int srs_maxage = 31;
1420uschar *srs_orig_recipient = NULL;
1421uschar *srs_orig_sender = NULL;
1422uschar *srs_recipient = NULL;
1423uschar *srs_secrets = NULL;
1424uschar *srs_status = NULL;
1425BOOL srs_usehash = TRUE;
1426BOOL srs_usetimestamp = TRUE;
1427#endif
1428BOOL strict_acl_vars = FALSE;
1429int string_datestamp_offset= -1;
1430int string_datestamp_length= 0;
1431int string_datestamp_type = -1;
1432BOOL strip_excess_angle_brackets = FALSE;
1433BOOL strip_trailing_dot = FALSE;
1434uschar *submission_domain = NULL;
1435BOOL submission_mode = FALSE;
1436uschar *submission_name = NULL;
1437BOOL suppress_local_fixups = FALSE;
1438BOOL suppress_local_fixups_default = FALSE;
1439BOOL synchronous_delivery = FALSE;
1440BOOL syslog_duplication = TRUE;
1441int syslog_facility = LOG_MAIL;
1442BOOL syslog_pid = TRUE;
1443uschar *syslog_processname = US"exim";
1444BOOL syslog_timestamp = TRUE;
1445uschar *system_filter = NULL;
1446
1447uschar *system_filter_directory_transport = NULL;
1448uschar *system_filter_file_transport = NULL;
1449uschar *system_filter_pipe_transport = NULL;
1450uschar *system_filter_reply_transport = NULL;
1451
1452gid_t system_filter_gid = 0;
1453BOOL system_filter_gid_set = FALSE;
1454uid_t system_filter_uid = (uid_t)-1;
1455BOOL system_filter_uid_set = FALSE;
1456BOOL system_filtering = FALSE;
1457
1458BOOL tcp_fastopen_ok = FALSE;
1459blob tcp_fastopen_nodata = { .data = NULL, .len = 0 };
1460BOOL tcp_in_fastopen = FALSE;
1461BOOL tcp_in_fastopen_logged = FALSE;
1462BOOL tcp_nodelay = TRUE;
1463int tcp_out_fastopen = 0;
1464BOOL tcp_out_fastopen_logged= FALSE;
1465#ifdef USE_TCP_WRAPPERS
1466uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1467#endif
1468int test_harness_load_avg = 0;
1469int thismessage_size_limit = 0;
1470int timeout_frozen_after = 0;
1471BOOL timestamps_utc = FALSE;
1472
1473transport_instance *transports = NULL;
1474
1475transport_instance transport_defaults = {
1476 .next = NULL,
1477 .name = NULL,
1478 .info = NULL,
1479 .options_block = NULL,
1480 .driver_name = NULL,
1481 .setup = NULL,
1482 .batch_max = 1,
1483 .batch_id = NULL,
1484 .home_dir = NULL,
1485 .current_dir = NULL,
1486 .expand_multi_domain = NULL,
1487 .multi_domain = TRUE,
1488 .overrides_hosts = FALSE,
1489 .max_addresses = 100,
1490 .connection_max_messages = 500,
1491 .deliver_as_creator = FALSE,
1492 .disable_logging = FALSE,
1493 .initgroups = FALSE,
1494 .uid_set = FALSE,
1495 .gid_set = FALSE,
1496 .uid = (uid_t)(-1),
1497 .gid = (gid_t)(-1),
1498 .expand_uid = NULL,
1499 .expand_gid = NULL,
1500 .warn_message = NULL,
1501 .shadow = NULL,
1502 .shadow_condition = NULL,
1503 .filter_command = NULL,
1504 .add_headers = NULL,
1505 .remove_headers = NULL,
1506 .return_path = NULL,
1507 .debug_string = NULL,
1508 .max_parallel = NULL,
1509 .message_size_limit = NULL,
1510 .headers_rewrite = NULL,
1511 .rewrite_rules = NULL,
1512 .rewrite_existflags = 0,
1513 .filter_timeout = 300,
1514 .body_only = FALSE,
1515 .delivery_date_add = FALSE,
1516 .envelope_to_add = FALSE,
1517 .headers_only = FALSE,
1518 .rcpt_include_affixes = FALSE,
1519 .return_path_add = FALSE,
1520 .return_output = FALSE,
1521 .return_fail_output = FALSE,
1522 .log_output = FALSE,
1523 .log_fail_output = FALSE,
1524 .log_defer_output = FALSE,
1525 .retry_use_local_part = TRUE_UNSET, /* retry_use_local_part: BOOL, but set neither
1526 1 nor 0 so can detect unset */
1527#ifndef DISABLE_EVENT
1528 .event_action = NULL
1529#endif
1530};
1531
1532int transport_count;
1533uschar *transport_name = NULL;
1534int transport_newlines;
1535const uschar **transport_filter_argv = NULL;
1536int transport_filter_timeout;
1537BOOL transport_filter_timed_out = FALSE;
1538int transport_write_timeout= 0;
1539
1540tree_node *tree_dns_fails = NULL;
1541tree_node *tree_duplicates = NULL;
1542tree_node *tree_nonrecipients = NULL;
1543tree_node *tree_unusable = NULL;
1544
1545BOOL trusted_caller = FALSE;
1546BOOL trusted_config = TRUE;
1547gid_t *trusted_groups = NULL;
1548uid_t *trusted_users = NULL;
1549uschar *timezone_string = US TIMEZONE_DEFAULT;
1550
1551uschar *unknown_login = NULL;
1552uschar *unknown_username = NULL;
1553uschar *untrusted_set_sender = NULL;
1554
1555/* A regex for matching a "From_" line in an incoming message, in the form
1556
1557 From ph10 Fri Jan 5 12:35 GMT 1996
1558
1559which the "mail" commands send to the MTA (undocumented, of course), or in
1560the form
1561
1562 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1563
1564which is apparently used by some UUCPs, despite it not being in RFC 976.
1565Because of variations in time formats, just match up to the minutes. That
1566should be sufficient. Examples have been seen of time fields like 12:1:03,
1567so just require one digit for hours and minutes. The weekday is also absent
1568in some forms. */
1569
1570uschar *uucp_from_pattern = US
1571 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1572 "(?:" /* Non-extracting bracket */
1573 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1574 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1575 ")" /* End alternation */
1576 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1577
1578uschar *uucp_from_sender = US"$1";
1579
1580uschar *verify_mode = NULL;
1581uschar *version_copyright =
1582 US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1583 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1584uschar *version_date = US"?";
1585uschar *version_cnumber = US"????";
1586uschar *version_string = US"?";
1587
1588uschar *warn_message_file = NULL;
1589int warning_count = 0;
1590uschar *warnmsg_delay = NULL;
1591uschar *warnmsg_recipients = NULL;
1592BOOL write_rejectlog = TRUE;
1593
1594
1595/* End of globals.c */
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