2cbafcdcef51a11fa721364e7d08e7c88dddf407
[users/jgh/exim.git] / src / src / globals.c
1 /*************************************************
2 *     Exim - an Internet mail transport agent    *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2014 */
6 /* See the file NOTICE for conditions of use and distribution. */
7
8 /* All the global variables are defined together in this one module, so
9 that they are easy to find. */
10
11 #include "exim.h"
12
13
14 /* Generic options for auths, all of which live inside auth_instance
15 data blocks and hence have the opt_public flag set. */
16
17 optionlist optionlist_auths[] = {
18   { "client_condition", opt_stringptr | opt_public,
19                  (void *)(offsetof(auth_instance, client_condition)) },
20   { "client_set_id", opt_stringptr | opt_public,
21                  (void *)(offsetof(auth_instance, set_client_id)) },
22   { "driver",        opt_stringptr | opt_public,
23                  (void *)(offsetof(auth_instance, driver_name)) },
24   { "public_name",   opt_stringptr | opt_public,
25                  (void *)(offsetof(auth_instance, public_name)) },
26   { "server_advertise_condition", opt_stringptr | opt_public,
27                  (void *)(offsetof(auth_instance, advertise_condition))},
28   { "server_condition", opt_stringptr | opt_public,
29                  (void *)(offsetof(auth_instance, server_condition)) },
30   { "server_debug_print", opt_stringptr | opt_public,
31                  (void *)(offsetof(auth_instance, server_debug_string)) },
32   { "server_mail_auth_condition", opt_stringptr | opt_public,
33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
34   { "server_set_id", opt_stringptr | opt_public,
35                  (void *)(offsetof(auth_instance, set_id)) }
36 };
37
38 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
39
40 /* An empty host aliases list. */
41
42 uschar *no_aliases             = NULL;
43
44
45 /* For comments on these variables, see globals.h. I'm too idle to
46 duplicate them here... */
47
48 #ifdef EXIM_PERL
49 uschar *opt_perl_startup       = NULL;
50 BOOL    opt_perl_at_start      = FALSE;
51 BOOL    opt_perl_started       = FALSE;
52 #endif
53
54 #ifdef EXPAND_DLFUNC
55 tree_node *dlobj_anchor        = NULL;
56 #endif
57
58 #ifdef LOOKUP_IBASE
59 uschar *ibase_servers          = NULL;
60 #endif
61
62 #ifdef LOOKUP_LDAP
63 uschar *eldap_ca_cert_dir      = NULL;
64 uschar *eldap_ca_cert_file     = NULL;
65 uschar *eldap_cert_file        = NULL;
66 uschar *eldap_cert_key         = NULL;
67 uschar *eldap_cipher_suite     = NULL;
68 uschar *eldap_default_servers  = NULL;
69 uschar *eldap_require_cert     = NULL;
70 int     eldap_version          = -1;
71 BOOL    eldap_start_tls        = FALSE;
72 #endif
73
74 #ifdef LOOKUP_MYSQL
75 uschar *mysql_servers          = NULL;
76 #endif
77
78 #ifdef LOOKUP_ORACLE
79 uschar *oracle_servers         = NULL;
80 #endif
81
82 #ifdef LOOKUP_PGSQL
83 uschar *pgsql_servers          = NULL;
84 #endif
85
86 #ifdef EXPERIMENTAL_REDIS
87 uschar *redis_servers          = NULL;
88 #endif
89
90 #ifdef LOOKUP_SQLITE
91 int     sqlite_lock_timeout    = 5;
92 #endif
93
94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
95 BOOL    move_frozen_messages   = FALSE;
96 #endif
97
98 /* These variables are outside the #ifdef because it keeps the code less
99 cluttered in several places (e.g. during logging) if we can always refer to
100 them. Also, the tls_ variables are now always visible. */
101
102 tls_support tls_in = {
103  -1,   /* tls_active */
104  0,    /* tls_bits */
105  FALSE,/* tls_certificate_verified */
106 #ifdef EXPERIMENTAL_DANE
107  FALSE,/* dane_verified */
108  0,    /* tlsa_usage */
109 #endif
110  NULL, /* tls_cipher */
111  FALSE,/* tls_on_connect */
112  NULL, /* tls_on_connect_ports */
113  NULL, /* tls_ourcert */
114  NULL, /* tls_peercert */
115  NULL, /* tls_peerdn */
116  NULL, /* tls_sni */
117  0     /* tls_ocsp */
118 };
119 tls_support tls_out = {
120  -1,   /* tls_active */
121  0,    /* tls_bits */
122  FALSE,/* tls_certificate_verified */
123 #ifdef EXPERIMENTAL_DANE
124  FALSE,/* dane_verified */
125  0,    /* tlsa_usage */
126 #endif
127  NULL, /* tls_cipher */
128  FALSE,/* tls_on_connect */
129  NULL, /* tls_on_connect_ports */
130  NULL, /* tls_ourcert */
131  NULL, /* tls_peercert */
132  NULL, /* tls_peerdn */
133  NULL, /* tls_sni */
134  0     /* tls_ocsp */
135 };
136
137 uschar *dsn_envid              = NULL;
138 int     dsn_ret                = 0;
139 const pcre  *regex_DSN         = NULL;
140 BOOL    smtp_use_dsn           = FALSE;
141 uschar *dsn_advertise_hosts    = NULL;
142
143 #ifdef SUPPORT_TLS
144 BOOL    gnutls_compat_mode     = FALSE;
145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
146 uschar *gnutls_require_mac     = NULL;
147 uschar *gnutls_require_kx      = NULL;
148 uschar *gnutls_require_proto   = NULL;
149 uschar *openssl_options        = NULL;
150 const pcre *regex_STARTTLS     = NULL;
151 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
152 uschar *tls_certificate        = NULL;
153 uschar *tls_crl                = NULL;
154 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
155 that's the interop problem which has been observed: GnuTLS suggesting a higher
156 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
157 int     tls_dh_max_bits        = 2236;
158 uschar *tls_dhparam            = NULL;
159 #ifndef DISABLE_OCSP
160 uschar *tls_ocsp_file          = NULL;
161 #endif
162 BOOL    tls_offered            = FALSE;
163 uschar *tls_privatekey         = NULL;
164 BOOL    tls_remember_esmtp     = FALSE;
165 uschar *tls_require_ciphers    = NULL;
166 uschar *tls_try_verify_hosts   = NULL;
167 uschar *tls_verify_certificates= US"system";
168 uschar *tls_verify_hosts       = NULL;
169 #endif
170
171 #ifndef DISABLE_PRDR
172 /* Per Recipient Data Response variables */
173 BOOL    prdr_enable            = FALSE;
174 BOOL    prdr_requested         = FALSE;
175 const pcre *regex_PRDR         = NULL;
176 #endif
177
178 /* Input-reading functions for messages, so we can use special ones for
179 incoming TCP/IP. The defaults use stdin. We never need these for any
180 stand-alone tests. */
181
182 #ifndef STAND_ALONE
183 int (*receive_getc)(void)      = stdin_getc;
184 int (*receive_ungetc)(int)     = stdin_ungetc;
185 int (*receive_feof)(void)      = stdin_feof;
186 int (*receive_ferror)(void)    = stdin_ferror;
187 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
188 #endif
189
190
191 /* List of per-address expansion variables for clearing and saving/restoring
192 when verifying one address while routing/verifying another. We have to have
193 the size explicit, because it is referenced from more than one module. */
194
195 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
196   CUSS &deliver_address_data,
197   CUSS &deliver_domain,
198   CUSS &deliver_domain_data,
199   CUSS &deliver_domain_orig,
200   CUSS &deliver_domain_parent,
201   CUSS &deliver_localpart,
202   CUSS &deliver_localpart_data,
203   CUSS &deliver_localpart_orig,
204   CUSS &deliver_localpart_parent,
205   CUSS &deliver_localpart_prefix,
206   CUSS &deliver_localpart_suffix,
207   CUSS (uschar **)(&deliver_recipients),
208   CUSS &deliver_host,
209   CUSS &deliver_home,
210   CUSS &address_file,
211   CUSS &address_pipe,
212   CUSS &self_hostname,
213   NULL };
214
215 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
216
217 /* General global variables */
218
219 header_line *acl_added_headers = NULL;
220 tree_node *acl_anchor          = NULL;
221 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
222                                   NULL, NULL, NULL, NULL};
223 int     acl_narg               = 0;
224
225 uschar *acl_not_smtp           = NULL;
226 #ifdef WITH_CONTENT_SCAN
227 uschar *acl_not_smtp_mime      = NULL;
228 #endif
229 uschar *acl_not_smtp_start     = NULL;
230 uschar *acl_removed_headers    = NULL;
231 uschar *acl_smtp_auth          = NULL;
232 uschar *acl_smtp_connect       = NULL;
233 uschar *acl_smtp_data          = NULL;
234 #ifndef DISABLE_PRDR
235 uschar *acl_smtp_data_prdr     = US"accept";
236 #endif
237 #ifndef DISABLE_DKIM
238 uschar *acl_smtp_dkim          = NULL;
239 #endif
240 uschar *acl_smtp_etrn          = NULL;
241 uschar *acl_smtp_expn          = NULL;
242 uschar *acl_smtp_helo          = NULL;
243 uschar *acl_smtp_mail          = NULL;
244 uschar *acl_smtp_mailauth      = NULL;
245 #ifdef WITH_CONTENT_SCAN
246 uschar *acl_smtp_mime          = NULL;
247 #endif
248 uschar *acl_smtp_notquit       = NULL;
249 uschar *acl_smtp_predata       = NULL;
250 uschar *acl_smtp_quit          = NULL;
251 uschar *acl_smtp_rcpt          = NULL;
252 uschar *acl_smtp_starttls      = NULL;
253 uschar *acl_smtp_vrfy          = NULL;
254
255 BOOL    acl_temp_details       = FALSE;
256 tree_node *acl_var_c           = NULL;
257 tree_node *acl_var_m           = NULL;
258 uschar *acl_verify_message     = NULL;
259 string_item *acl_warn_logged   = NULL;
260
261 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
262 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
263
264 uschar *acl_wherenames[]       = { US"RCPT",
265                                    US"MAIL",
266                                    US"PREDATA",
267                                    US"MIME",
268                                    US"DKIM",
269                                    US"DATA",
270 #ifndef DISABLE_PRDR
271                                    US"PRDR",
272 #endif
273                                    US"non-SMTP",
274                                    US"AUTH",
275                                    US"connection",
276                                    US"ETRN",
277                                    US"EXPN",
278                                    US"EHLO or HELO",
279                                    US"MAILAUTH",
280                                    US"non-SMTP-start",
281                                    US"NOTQUIT",
282                                    US"QUIT",
283                                    US"STARTTLS",
284                                    US"VRFY",
285                                    US"delivery",
286                                    US"unknown"
287                                  };
288
289 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
290                                    US"550",     /* MAIL */
291                                    US"550",     /* PREDATA */
292                                    US"550",     /* MIME */
293                                    US"550",     /* DKIM */
294                                    US"550",     /* DATA */
295 #ifndef DISABLE_PRDR
296                                    US"550",    /* RCPT PRDR */
297 #endif
298                                    US"0",       /* not SMTP; not relevant */
299                                    US"503",     /* AUTH */
300                                    US"550",     /* connect */
301                                    US"458",     /* ETRN */
302                                    US"550",     /* EXPN */
303                                    US"550",     /* HELO/EHLO */
304                                    US"0",       /* MAILAUTH; not relevant */
305                                    US"0",       /* not SMTP; not relevant */
306                                    US"0",       /* NOTQUIT; not relevant */
307                                    US"0",       /* QUIT; not relevant */
308                                    US"550",     /* STARTTLS */
309                                    US"252",     /* VRFY */
310                                    US"0",       /* delivery; not relevant */
311                                    US"0"        /* unknown; not relevant */
312                                  };
313
314 BOOL    active_local_from_check = FALSE;
315 BOOL    active_local_sender_retain = FALSE;
316 int     body_8bitmime = 0;
317 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
318 address_item  *addr_duplicate  = NULL;
319
320 address_item address_defaults = {
321   NULL,                 /* next */
322   NULL,                 /* parent */
323   NULL,                 /* first */
324   NULL,                 /* dupof */
325   NULL,                 /* start_router */
326   NULL,                 /* router */
327   NULL,                 /* transport */
328   NULL,                 /* host_list */
329   NULL,                 /* host_used */
330   NULL,                 /* fallback_hosts */
331   NULL,                 /* reply */
332   NULL,                 /* retries */
333   NULL,                 /* address */
334   NULL,                 /* unique */
335   NULL,                 /* cc_local_part */
336   NULL,                 /* lc_local_part */
337   NULL,                 /* local_part */
338   NULL,                 /* prefix */
339   NULL,                 /* suffix */
340   NULL,                 /* domain */
341   NULL,                 /* address_retry_key */
342   NULL,                 /* domain_retry_key */
343   NULL,                 /* current_dir */
344   NULL,                 /* home_dir */
345   NULL,                 /* message */
346   NULL,                 /* user_message */
347   NULL,                 /* onetime_parent */
348   NULL,                 /* pipe_expandn */
349   NULL,                 /* return_filename */
350   NULL,                 /* self_hostname */
351   NULL,                 /* shadow_message */
352   #ifdef SUPPORT_TLS
353   NULL,                 /* cipher */
354   NULL,                 /* ourcert */
355   NULL,                 /* peercert */
356   NULL,                 /* peerdn */
357   OCSP_NOT_REQ,         /* ocsp */
358   #endif
359   NULL,                 /* authenticator */
360   NULL,                 /* auth_id */
361   NULL,                 /* auth_sndr */
362   NULL,                 /* dsn_orcpt */
363   0,                    /* dsn_flags */
364   0,                    /* dsn_aware */
365   (uid_t)(-1),          /* uid */
366   (gid_t)(-1),          /* gid */
367   0,                    /* flags */
368   { 0 },                /* domain_cache - any larger array should be zeroed */
369   { 0 },                /* localpart_cache - ditto */
370   -1,                   /* mode */
371   0,                    /* more_errno */
372   ERRNO_UNKNOWNERROR,   /* basic_errno */
373   0,                    /* child_count */
374   -1,                   /* return_file */
375   SPECIAL_NONE,         /* special_action */
376   DEFER,                /* transport_return */
377   {                     /* fields that are propagated to children */
378     NULL,               /* address_data */
379     NULL,               /* domain_data */
380     NULL,               /* localpart_data */
381     NULL,               /* errors_address */
382     NULL,               /* extra_headers */
383     NULL,               /* remove_headers */
384 #ifdef EXPERIMENTAL_SRS
385     NULL,               /* srs_sender */
386 #endif
387   }
388 };
389
390 uschar *address_file           = NULL;
391 uschar *address_pipe           = NULL;
392 BOOL    address_test_mode      = FALSE;
393 tree_node *addresslist_anchor  = NULL;
394 int     addresslist_count      = 0;
395 gid_t  *admin_groups           = NULL;
396 BOOL    admin_user             = FALSE;
397 BOOL    allow_auth_unadvertised= FALSE;
398 BOOL    allow_domain_literals  = FALSE;
399 BOOL    allow_mx_to_ip         = FALSE;
400 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
401 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
402 BOOL    allow_utf8_domains     = FALSE;
403 uschar *authenticated_fail_id  = NULL;
404 uschar *authenticated_id       = NULL;
405 uschar *authenticated_sender   = NULL;
406 BOOL    authentication_failed  = FALSE;
407 auth_instance  *auths          = NULL;
408 uschar *auth_advertise_hosts   = US"*";
409 auth_instance auth_defaults    = {
410     NULL,                      /* chain pointer */
411     NULL,                      /* name */
412     NULL,                      /* info */
413     NULL,                      /* private options block pointer */
414     NULL,                      /* driver_name */
415     NULL,                      /* advertise_condition */
416     NULL,                      /* client_condition */
417     NULL,                      /* public_name */
418     NULL,                      /* set_id */
419     NULL,                      /* set_client_id */
420     NULL,                      /* server_mail_auth_condition */
421     NULL,                      /* server_debug_string */
422     NULL,                      /* server_condition */
423     FALSE,                     /* client */
424     FALSE,                     /* server */
425     FALSE                      /* advertised */
426 };
427
428 uschar *auth_defer_msg         = US"reason not recorded";
429 uschar *auth_defer_user_msg    = US"";
430 uschar *auth_vars[AUTH_VARS];
431 int     auto_thaw              = 0;
432 #ifdef WITH_CONTENT_SCAN
433 BOOL    av_failed              = FALSE;
434 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
435 #endif
436
437 BOOL    background_daemon      = TRUE;
438
439 #if BASE_62 == 62
440 uschar *base62_chars=
441     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
442 #else
443 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
444 #endif
445
446 uschar *bi_command             = NULL;
447 uschar *big_buffer             = NULL;
448 int     big_buffer_size        = BIG_BUFFER_SIZE;
449 #ifdef EXPERIMENTAL_BRIGHTMAIL
450 uschar *bmi_alt_location       = NULL;
451 uschar *bmi_base64_tracker_verdict = NULL;
452 uschar *bmi_base64_verdict     = NULL;
453 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
454 int     bmi_deliver            = 1;
455 int     bmi_run                = 0;
456 uschar *bmi_verdicts           = NULL;
457 #endif
458 int     body_linecount         = 0;
459 int     body_zerocount         = 0;
460 uschar *bounce_message_file    = NULL;
461 uschar *bounce_message_text    = NULL;
462 uschar *bounce_recipient       = NULL;
463 BOOL    bounce_return_body     = TRUE;
464 BOOL    bounce_return_message  = TRUE;
465 int     bounce_return_size_limit = 100*1024;
466 uschar *bounce_sender_authentication = NULL;
467 int     bsmtp_transaction_linecount = 0;
468
469 int     callout_cache_domain_positive_expire = 7*24*60*60;
470 int     callout_cache_domain_negative_expire = 3*60*60;
471 int     callout_cache_positive_expire = 24*60*60;
472 int     callout_cache_negative_expire = 2*60*60;
473 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
474 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
475 int     check_log_inodes       = 0;
476 int     check_log_space        = 0;
477 BOOL    check_rfc2047_length   = TRUE;
478 int     check_spool_inodes     = 0;
479 int     check_spool_space      = 0;
480 uschar  *client_authenticator  = NULL;
481 uschar  *client_authenticated_id = NULL;
482 uschar  *client_authenticated_sender = NULL;
483 int     clmacro_count          = 0;
484 uschar *clmacros[MAX_CLMACROS];
485 BOOL    config_changed         = FALSE;
486 FILE   *config_file            = NULL;
487 uschar *config_filename        = NULL;
488 int     config_lineno          = 0;
489 #ifdef CONFIGURE_GROUP
490 gid_t   config_gid             = CONFIGURE_GROUP;
491 #endif
492 uschar *config_main_filelist   = US CONFIGURE_FILE
493                          "\0<-----------Space to patch configure_filename->";
494 uschar *config_main_filename   = NULL;
495 uschar *config_main_directory  = NULL;
496
497 #ifdef CONFIGURE_OWNER
498 uid_t   config_uid             = CONFIGURE_OWNER;
499 #endif
500
501 int     connection_max_messages= -1;
502 uschar *continue_hostname      = NULL;
503 uschar *continue_host_address  = NULL;
504 BOOL    continue_more          = FALSE;
505 int     continue_sequence      = 1;
506 uschar *continue_transport     = NULL;
507
508 uschar *csa_status             = NULL;
509 cut_t   cutthrough = {
510   FALSE,                                /* delivery: when to attempt */
511   -1,                                   /* fd: open connection */
512   0,                                    /* nrcpt: number of addresses */
513 };
514
515 BOOL    daemon_listen          = FALSE;
516 uschar *daemon_smtp_port       = US"smtp";
517 int     daemon_startup_retries = 9;
518 int     daemon_startup_sleep   = 30;
519
520 #ifdef EXPERIMENTAL_DCC
521 BOOL    dcc_direct_add_header  = FALSE;
522 uschar *dcc_header             = NULL;
523 uschar *dcc_result             = NULL;
524 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
525 uschar *dccifd_options         = US"header";
526 #endif
527
528 BOOL    debug_daemon           = FALSE;
529 int     debug_fd               = -1;
530 FILE   *debug_file             = NULL;
531 bit_table debug_options[]      = {
532   { US"acl",            D_acl },
533   { US"all",            D_all },
534   { US"auth",           D_auth },
535   { US"deliver",        D_deliver },
536   { US"dns",            D_dns },
537   { US"dnsbl",          D_dnsbl },
538   { US"exec",           D_exec },
539   { US"expand",         D_expand },
540   { US"filter",         D_filter },
541   { US"hints_lookup",   D_hints_lookup },
542   { US"host_lookup",    D_host_lookup },
543   { US"ident",          D_ident },
544   { US"interface",      D_interface },
545   { US"lists",          D_lists },
546   { US"load",           D_load },
547   { US"local_scan",     D_local_scan },
548   { US"lookup",         D_lookup },
549   { US"memory",         D_memory },
550   { US"pid",            D_pid },
551   { US"process_info",   D_process_info },
552   { US"queue_run",      D_queue_run },
553   { US"receive",        D_receive },
554   { US"resolver",       D_resolver },
555   { US"retry",          D_retry },
556   { US"rewrite",        D_rewrite },
557   { US"route",          D_route },
558   { US"timestamp",      D_timestamp },
559   { US"tls",            D_tls },
560   { US"transport",      D_transport },
561   { US"uid",            D_uid },
562   { US"verify",         D_verify }
563 };
564 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
565 unsigned int debug_selector    = 0;
566 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
567 uschar *delay_warning_condition=
568   US"${if or {"
569             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
570             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
571             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
572             "} {no}{yes}}";
573 BOOL    delivery_date_remove   = TRUE;
574 uschar *deliver_address_data   = NULL;
575 int     deliver_datafile       = -1;
576 const uschar *deliver_domain   = NULL;
577 uschar *deliver_domain_data    = NULL;
578 const uschar *deliver_domain_orig = NULL;
579 const uschar *deliver_domain_parent = NULL;
580 BOOL    deliver_drop_privilege = FALSE;
581 BOOL    deliver_firsttime      = FALSE;
582 BOOL    deliver_force          = FALSE;
583 BOOL    deliver_freeze         = FALSE;
584 time_t  deliver_frozen_at      = 0;
585 uschar *deliver_home           = NULL;
586 const uschar *deliver_host     = NULL;
587 const uschar *deliver_host_address = NULL;
588 int     deliver_host_port      = 0;
589 uschar *deliver_in_buffer      = NULL;
590 ino_t   deliver_inode          = 0;
591 uschar *deliver_localpart      = NULL;
592 uschar *deliver_localpart_data = NULL;
593 uschar *deliver_localpart_orig = NULL;
594 uschar *deliver_localpart_parent = NULL;
595 uschar *deliver_localpart_prefix = NULL;
596 uschar *deliver_localpart_suffix = NULL;
597 BOOL    deliver_force_thaw     = FALSE;
598 BOOL    deliver_manual_thaw    = FALSE;
599 uschar *deliver_out_buffer     = NULL;
600 int     deliver_queue_load_max = -1;
601 address_item  *deliver_recipients = NULL;
602 uschar *deliver_selectstring   = NULL;
603 BOOL    deliver_selectstring_regex = FALSE;
604 uschar *deliver_selectstring_sender = NULL;
605 BOOL    deliver_selectstring_sender_regex = FALSE;
606 #ifdef WITH_OLD_DEMIME
607 int     demime_errorlevel      = 0;
608 int     demime_ok              = 0;
609 uschar *demime_reason          = NULL;
610 #endif
611 BOOL    disable_callout_flush  = FALSE;
612 BOOL    disable_delay_flush    = FALSE;
613 #ifdef ENABLE_DISABLE_FSYNC
614 BOOL    disable_fsync          = FALSE;
615 #endif
616 BOOL    disable_ipv6           = FALSE;
617 BOOL    disable_logging        = FALSE;
618
619 #ifndef DISABLE_DKIM
620 uschar *dkim_cur_signer          = NULL;
621 uschar *dkim_signers             = NULL;
622 uschar *dkim_signing_domain      = NULL;
623 uschar *dkim_signing_selector    = NULL;
624 uschar *dkim_verify_signers      = US"$dkim_signers";
625 BOOL    dkim_collect_input       = FALSE;
626 BOOL    dkim_disable_verify      = FALSE;
627 #endif
628 #ifdef EXPERIMENTAL_DMARC
629 BOOL    dmarc_has_been_checked  = FALSE;
630 uschar *dmarc_ar_header         = NULL;
631 uschar *dmarc_domain_policy     = NULL;
632 uschar *dmarc_forensic_sender   = NULL;
633 uschar *dmarc_history_file      = NULL;
634 uschar *dmarc_status            = NULL;
635 uschar *dmarc_status_text       = NULL;
636 uschar *dmarc_tld_file          = NULL;
637 uschar *dmarc_used_domain       = NULL;
638 BOOL    dmarc_disable_verify    = FALSE;
639 BOOL    dmarc_enable_forensic   = FALSE;
640 #endif
641
642 uschar *dns_again_means_nonexist = NULL;
643 int     dns_csa_search_limit   = 5;
644 BOOL    dns_csa_use_reverse    = TRUE;
645 #ifdef EXPERIMENTAL_DANE
646 int     dns_dane_ok            = -1;
647 #endif
648 uschar *dns_ipv4_lookup        = NULL;
649 int     dns_retrans            = 0;
650 int     dns_retry              = 0;
651 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
652 int     dns_use_edns0          = -1; /* <0 = not coerced */
653 uschar *dnslist_domain         = NULL;
654 uschar *dnslist_matched        = NULL;
655 uschar *dnslist_text           = NULL;
656 uschar *dnslist_value          = NULL;
657 tree_node *domainlist_anchor   = NULL;
658 int     domainlist_count       = 0;
659 BOOL    dont_deliver           = FALSE;
660 BOOL    dot_ends               = TRUE;
661 BOOL    drop_cr                = FALSE;         /* No longer used */
662 uschar *dsn_from               = US DEFAULT_DSN_FROM;
663
664 BOOL    enable_dollar_recipients = FALSE;
665 BOOL    envelope_to_remove     = TRUE;
666 int     errno_quota            = ERRNO_QUOTA;
667 uschar *errors_copy            = NULL;
668 int     error_handling         = ERRORS_SENDER;
669 uschar *errors_reply_to        = NULL;
670 int     errors_sender_rc       = EXIT_FAILURE;
671 #ifdef EXPERIMENTAL_EVENT
672 uschar *event_action             = NULL;        /* expansion for delivery events */
673 uschar *event_data               = NULL;        /* auxilary data variable for event */
674 int     event_defer_errno        = 0;
675 const uschar *event_name         = NULL;        /* event name variable */
676 #endif
677
678
679 gid_t   exim_gid               = EXIM_GID;
680 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
681 uschar *exim_path              = US BIN_DIRECTORY "/exim"
682                         "\0<---------------Space to patch exim_path->";
683 uid_t   exim_uid               = EXIM_UID;
684 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
685 int     expand_forbid          = 0;
686 int     expand_nlength[EXPAND_MAXN+1];
687 int     expand_nmax            = -1;
688 uschar *expand_nstring[EXPAND_MAXN+1];
689 BOOL    expand_string_forcedfail = FALSE;
690 uschar *expand_string_message;
691 BOOL    extract_addresses_remove_arguments = TRUE;
692 uschar *extra_local_interfaces = NULL;
693
694 int     fake_response          = OK;
695 uschar *fake_response_text     = US"Your message has been rejected but is "
696                                    "being kept for evaluation.\nIf it was a "
697                                    "legitimate message, it may still be "
698                                    "delivered to the target recipient(s).";
699 int     filter_n[FILTER_VARIABLE_COUNT];
700 BOOL    filter_running         = FALSE;
701 int     filter_sn[FILTER_VARIABLE_COUNT];
702 int     filter_test            = FTEST_NONE;
703 uschar *filter_test_sfile      = NULL;
704 uschar *filter_test_ufile      = NULL;
705 uschar *filter_thisaddress     = NULL;
706 int     finduser_retries       = 0;
707 #ifdef WITH_OLD_DEMIME
708 uschar *found_extension        = NULL;
709 #endif
710 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
711 uschar *freeze_tell            = NULL;
712 uschar *freeze_tell_config     = NULL;
713 uschar *fudged_queue_times     = US"";
714
715 uschar *gecos_name             = NULL;
716 uschar *gecos_pattern          = NULL;
717 rewrite_rule  *global_rewrite_rules = NULL;
718
719 uschar *headers_charset        = US HEADERS_CHARSET;
720 int     header_insert_maxlen   = 64 * 1024;
721 header_line  *header_last      = NULL;
722 header_line  *header_list      = NULL;
723 int     header_maxsize         = HEADER_MAXSIZE;
724 int     header_line_maxsize    = 0;
725
726 header_name header_names[] = {
727   { US"bcc",            3, TRUE,  htype_bcc },
728   { US"cc",             2, TRUE,  htype_cc },
729   { US"date",           4, TRUE,  htype_date },
730   { US"delivery-date", 13, FALSE, htype_delivery_date },
731   { US"envelope-to",   11, FALSE, htype_envelope_to },
732   { US"from",           4, TRUE,  htype_from },
733   { US"message-id",    10, TRUE,  htype_id },
734   { US"received",       8, FALSE, htype_received },
735   { US"reply-to",       8, FALSE, htype_reply_to },
736   { US"return-path",   11, FALSE, htype_return_path },
737   { US"sender",         6, TRUE,  htype_sender },
738   { US"subject",        7, FALSE, htype_subject },
739   { US"to",             2, TRUE,  htype_to }
740 };
741
742 int header_names_size          = sizeof(header_names)/sizeof(header_name);
743
744 BOOL    header_rewritten       = FALSE;
745 uschar *helo_accept_junk_hosts = NULL;
746 uschar *helo_allow_chars       = US"";
747 uschar *helo_lookup_domains    = US"@ : @[]";
748 uschar *helo_try_verify_hosts  = NULL;
749 BOOL    helo_verified          = FALSE;
750 BOOL    helo_verify_failed     = FALSE;
751 uschar *helo_verify_hosts      = NULL;
752 const uschar *hex_digits       = CUS"0123456789abcdef";
753 uschar *hold_domains           = NULL;
754 BOOL    host_checking          = FALSE;
755 BOOL    host_checking_callout  = FALSE;
756 uschar *host_data              = NULL;
757 BOOL    host_find_failed_syntax= FALSE;
758 uschar *host_lookup            = NULL;
759 BOOL    host_lookup_deferred   = FALSE;
760 BOOL    host_lookup_failed     = FALSE;
761 uschar *host_lookup_order      = US"bydns:byaddr";
762 uschar *host_lookup_msg        = US"";
763 int     host_number            = 0;
764 uschar *host_number_string     = NULL;
765 uschar *host_reject_connection = NULL;
766 tree_node *hostlist_anchor     = NULL;
767 int     hostlist_count         = 0;
768 uschar *hosts_treat_as_local   = NULL;
769 uschar *hosts_connection_nolog = NULL;
770
771 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
772 BOOL    ignore_fromline_local  = FALSE;
773 uschar *ignore_fromline_hosts  = NULL;
774 BOOL    inetd_wait_mode        = FALSE;
775 int     inetd_wait_timeout     = -1;
776 uschar *interface_address      = NULL;
777 int     interface_port         = -1;
778 BOOL    is_inetd               = FALSE;
779 uschar *iterate_item           = NULL;
780
781 int     journal_fd             = -1;
782
783 int     keep_malformed         = 4*24*60*60;    /* 4 days */
784
785 uschar *eldap_dn               = NULL;
786 int     load_average           = -2;
787 BOOL    local_error_message    = FALSE;
788 BOOL    local_from_check       = TRUE;
789 uschar *local_from_prefix      = NULL;
790 uschar *local_from_suffix      = NULL;
791
792 #if HAVE_IPV6
793 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
794 #else
795 uschar *local_interfaces       = US"0.0.0.0";
796 #endif
797
798 uschar *local_scan_data        = NULL;
799 int     local_scan_timeout     = 5*60;
800 BOOL    local_sender_retain    = FALSE;
801 gid_t   local_user_gid         = (gid_t)(-1);
802 uid_t   local_user_uid         = (uid_t)(-1);
803
804 tree_node *localpartlist_anchor= NULL;
805 int     localpartlist_count    = 0;
806 uschar *log_buffer             = NULL;
807 unsigned int log_extra_selector = LX_default;
808 uschar *log_file_path          = US LOG_FILE_PATH
809                            "\0<--------------Space to patch log_file_path->";
810
811 /* Those log options with L_xxx identifiers have values less than 0x800000 and
812 are the ones that get put into log_write_selector. They can be used in calls to
813 log_write() to test for the bit. The options with LX_xxx identifiers have
814 values greater than 0x80000000 and are put into log_extra_selector (without the
815 top bit). They are never used in calls to log_write(), but are tested
816 independently. This separation became necessary when the number of log
817 selectors was getting close to filling a 32-bit word. */
818
819 /* Note that this list must be in alphabetical order. */
820
821 bit_table log_options[]        = {
822   { US"8bitmime",                     LX_8bitmime },
823   { US"acl_warn_skipped",             LX_acl_warn_skipped },
824   { US"address_rewrite",              L_address_rewrite },
825   { US"all",                          L_all },
826   { US"all_parents",                  L_all_parents },
827   { US"arguments",                    LX_arguments },
828   { US"connection_reject",            L_connection_reject },
829   { US"delay_delivery",               L_delay_delivery },
830   { US"deliver_time",                 LX_deliver_time },
831   { US"delivery_size",                LX_delivery_size },
832   { US"dnslist_defer",                L_dnslist_defer },
833   { US"etrn",                         L_etrn },
834   { US"host_lookup_failed",           L_host_lookup_failed },
835   { US"ident_timeout",                LX_ident_timeout },
836   { US"incoming_interface",           LX_incoming_interface },
837   { US"incoming_port",                LX_incoming_port },
838   { US"lost_incoming_connection",     L_lost_incoming_connection },
839   { US"outgoing_port",                LX_outgoing_port },
840   { US"pid",                          LX_pid },
841 #ifdef EXPERIMENTAL_PROXY
842   { US"proxy",                        LX_proxy },
843 #endif
844   { US"queue_run",                    L_queue_run },
845   { US"queue_time",                   LX_queue_time },
846   { US"queue_time_overall",           LX_queue_time_overall },
847   { US"received_recipients",          LX_received_recipients },
848   { US"received_sender",              LX_received_sender },
849   { US"rejected_header",              LX_rejected_header },
850   { US"rejected_headers",             LX_rejected_header },
851   { US"retry_defer",                  L_retry_defer },
852   { US"return_path_on_delivery",      LX_return_path_on_delivery },
853   { US"sender_on_delivery",           LX_sender_on_delivery },
854   { US"sender_verify_fail",           LX_sender_verify_fail },
855   { US"size_reject",                  L_size_reject },
856   { US"skip_delivery",                L_skip_delivery },
857   { US"smtp_confirmation",            LX_smtp_confirmation },
858   { US"smtp_connection",              L_smtp_connection },
859   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
860   { US"smtp_mailauth",                LX_smtp_mailauth },
861   { US"smtp_no_mail",                 LX_smtp_no_mail },
862   { US"smtp_protocol_error",          L_smtp_protocol_error },
863   { US"smtp_syntax_error",            L_smtp_syntax_error },
864   { US"subject",                      LX_subject },
865   { US"tls_certificate_verified",     LX_tls_certificate_verified },
866   { US"tls_cipher",                   LX_tls_cipher },
867   { US"tls_peerdn",                   LX_tls_peerdn },
868   { US"tls_sni",                      LX_tls_sni },
869   { US"unknown_in_list",              LX_unknown_in_list }
870 };
871
872 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
873 int     log_reject_target      = 0;
874 uschar *log_selector_string    = NULL;
875 FILE   *log_stderr             = NULL;
876 BOOL    log_testing_mode       = FALSE;
877 BOOL    log_timezone           = FALSE;
878 unsigned int log_write_selector= L_default;
879 uschar *login_sender_address   = NULL;
880 uschar *lookup_dnssec_authenticated = NULL;
881 int     lookup_open_max        = 25;
882 uschar *lookup_value           = NULL;
883
884 macro_item  *macros            = NULL;
885 uschar *mailstore_basename     = NULL;
886 #ifdef WITH_CONTENT_SCAN
887 uschar *malware_name           = NULL;  /* Virus Name */
888 #endif
889 int     max_received_linelength= 0;
890 int     max_username_length    = 0;
891 int     message_age            = 0;
892 uschar *message_body           = NULL;
893 uschar *message_body_end       = NULL;
894 BOOL    message_body_newlines  = FALSE;
895 int     message_body_size      = 0;
896 int     message_body_visible   = 500;
897 int     message_ended          = END_NOTSTARTED;
898 uschar *message_headers        = NULL;
899 uschar *message_id;
900 uschar *message_id_domain      = NULL;
901 uschar *message_id_text        = NULL;
902 struct timeval message_id_tv   = { 0, 0 };
903 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
904 uschar *message_id_external;
905 int     message_linecount      = 0;
906 BOOL    message_logs           = TRUE;
907 int     message_size           = 0;
908 uschar *message_size_limit     = US"50M";
909 #ifdef EXPERIMENTAL_INTERNATIONAL
910 BOOL    message_smtputf8       = FALSE;
911 #endif
912 uschar  message_subdir[2]      = { 0, 0 };
913 uschar *message_reference      = NULL;
914
915 /* MIME ACL expandables */
916 #ifdef WITH_CONTENT_SCAN
917 int     mime_anomaly_level     = 0;
918 const uschar *mime_anomaly_text      = NULL;
919 uschar *mime_boundary          = NULL;
920 uschar *mime_charset           = NULL;
921 uschar *mime_content_description = NULL;
922 uschar *mime_content_disposition = NULL;
923 uschar *mime_content_id        = NULL;
924 unsigned int mime_content_size = 0;
925 uschar *mime_content_transfer_encoding = NULL;
926 uschar *mime_content_type      = NULL;
927 uschar *mime_decoded_filename  = NULL;
928 uschar *mime_filename          = NULL;
929 int     mime_is_multipart      = 0;
930 int     mime_is_coverletter    = 0;
931 int     mime_is_rfc822         = 0;
932 int     mime_part_count        = -1;
933 #endif
934
935 BOOL    mua_wrapper            = FALSE;
936
937 uid_t  *never_users            = NULL;
938 #ifdef WITH_CONTENT_SCAN
939 BOOL    no_mbox_unspool        = FALSE;
940 #endif
941 BOOL    no_multiline_responses = FALSE;
942
943 uid_t   original_euid;
944 gid_t   originator_gid;
945 uschar *originator_login       = NULL;
946 uschar *originator_name        = NULL;
947 uid_t   originator_uid;
948 uschar *override_local_interfaces = NULL;
949 uschar *override_pid_file_path = NULL;
950
951 BOOL    parse_allow_group      = FALSE;
952 BOOL    parse_found_group      = FALSE;
953 uschar *percent_hack_domains   = NULL;
954 uschar *pid_file_path          = US PID_FILE_PATH
955                            "\0<--------------Space to patch pid_file_path->";
956 BOOL    pipelining_enable      = TRUE;
957 uschar *pipelining_advertise_hosts = US"*";
958 BOOL    preserve_message_logs  = FALSE;
959 uschar *primary_hostname       = NULL;
960 BOOL    print_topbitchars      = FALSE;
961 uschar  process_info[PROCESS_INFO_SIZE];
962 int     process_info_len       = 0;
963 uschar *process_log_path       = NULL;
964 BOOL    prod_requires_admin    = TRUE;
965
966 #ifdef EXPERIMENTAL_PROXY
967 uschar *proxy_host_address     = US"";
968 int     proxy_host_port        = 0;
969 uschar *proxy_required_hosts   = US"";
970 BOOL    proxy_session          = FALSE;
971 BOOL    proxy_session_failed   = FALSE;
972 uschar *proxy_target_address   = US"";
973 int     proxy_target_port      = 0;
974 #endif
975
976 uschar *prvscheck_address      = NULL;
977 uschar *prvscheck_keynum       = NULL;
978 uschar *prvscheck_result       = NULL;
979
980
981 const uschar *qualify_domain_recipient = NULL;
982 uschar *qualify_domain_sender  = NULL;
983 BOOL    queue_2stage           = FALSE;
984 uschar *queue_domains          = NULL;
985 int     queue_interval         = -1;
986 BOOL    queue_list_requires_admin = TRUE;
987 BOOL    queue_only             = FALSE;
988 uschar *queue_only_file        = NULL;
989 int     queue_only_load        = -1;
990 BOOL    queue_only_load_latch  = TRUE;
991 BOOL    queue_only_override    = TRUE;
992 BOOL    queue_only_policy      = FALSE;
993 BOOL    queue_run_first_delivery = FALSE;
994 BOOL    queue_run_force        = FALSE;
995 BOOL    queue_run_in_order     = FALSE;
996 BOOL    queue_run_local        = FALSE;
997 int     queue_run_max          = 5;
998 pid_t   queue_run_pid          = (pid_t)0;
999 int     queue_run_pipe         = -1;
1000 BOOL    queue_running          = FALSE;
1001 BOOL    queue_smtp             = FALSE;
1002 uschar *queue_smtp_domains     = NULL;
1003
1004 unsigned int random_seed       = 0;
1005 tree_node *ratelimiters_cmd    = NULL;
1006 tree_node *ratelimiters_conn   = NULL;
1007 tree_node *ratelimiters_mail   = NULL;
1008 uschar *raw_active_hostname    = NULL;
1009 uschar *raw_sender             = NULL;
1010 uschar **raw_recipients        = NULL;
1011 int     raw_recipients_count   = 0;
1012
1013 int     rcpt_count             = 0;
1014 int     rcpt_fail_count        = 0;
1015 int     rcpt_defer_count       = 0;
1016 gid_t   real_gid;
1017 uid_t   real_uid;
1018 BOOL    really_exim            = TRUE;
1019 BOOL    receive_call_bombout   = FALSE;
1020 int     receive_linecount      = 0;
1021 int     receive_messagecount   = 0;
1022 int     receive_timeout        = 0;
1023 int     received_count         = 0;
1024 uschar *received_for           = NULL;
1025
1026 /*  This is the default text for Received headers generated by Exim. The
1027 date  will be automatically added on the end. */
1028
1029 uschar *received_header_text   = US
1030      "Received: "
1031      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1032      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1033      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1034      "by $primary_hostname "
1035      "${if def:received_protocol {with $received_protocol}} "
1036      #ifdef SUPPORT_TLS
1037      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1038      #endif
1039      "(Exim $version_number)\n\t"
1040      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1041      "id $message_exim_id"
1042      "${if def:received_for {\n\tfor $received_for}}"
1043      "\0<---------------Space to patch received_header_text->";
1044
1045 int     received_headers_max   = 30;
1046 uschar *received_protocol      = NULL;
1047 int     received_time          = 0;
1048 uschar *recipient_data         = NULL;
1049 uschar *recipient_unqualified_hosts = NULL;
1050 uschar *recipient_verify_failure = NULL;
1051 int     recipients_count       = 0;
1052 BOOL    recipients_discarded   = FALSE;
1053 recipient_item  *recipients_list = NULL;
1054 int     recipients_list_max    = 0;
1055 int     recipients_max         = 0;
1056 BOOL    recipients_max_reject  = FALSE;
1057 const pcre *regex_AUTH         = NULL;
1058 const pcre *regex_check_dns_names = NULL;
1059 const pcre *regex_From         = NULL;
1060 const pcre *regex_IGNOREQUOTA  = NULL;
1061 const pcre *regex_PIPELINING   = NULL;
1062 const pcre *regex_SIZE         = NULL;
1063 const pcre *regex_smtp_code    = NULL;
1064 const pcre *regex_ismsgid      = NULL;
1065 #ifdef WHITELIST_D_MACROS
1066 const pcre *regex_whitelisted_macro = NULL;
1067 #endif
1068 #ifdef WITH_CONTENT_SCAN
1069 uschar *regex_match_string     = NULL;
1070 #endif
1071 int     remote_delivery_count  = 0;
1072 int     remote_max_parallel    = 2;
1073 uschar *remote_sort_domains    = NULL;
1074 int     retry_data_expire      = 7*24*60*60;
1075 int     retry_interval_max     = 24*60*60;
1076 int     retry_maximum_timeout  = 0;        /* set from retry config */
1077 retry_config  *retries         = NULL;
1078 uschar *return_path            = NULL;
1079 BOOL    return_path_remove     = TRUE;
1080 int     rewrite_existflags     = 0;
1081 uschar *rfc1413_hosts          = US"@[]";
1082 int     rfc1413_query_timeout  = 0;
1083 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1084 uid_t   root_gid               = ROOT_GID;
1085 uid_t   root_uid               = ROOT_UID;
1086
1087 router_instance  *routers  = NULL;
1088 router_instance  router_defaults = {
1089     NULL,                      /* chain pointer */
1090     NULL,                      /* name */
1091     NULL,                      /* info */
1092     NULL,                      /* private options block pointer */
1093     NULL,                      /* driver name */
1094
1095     NULL,                      /* address_data */
1096 #ifdef EXPERIMENTAL_BRIGHTMAIL
1097     NULL,                      /* bmi_rule */
1098 #endif
1099     NULL,                      /* cannot_route_message */
1100     NULL,                      /* condition */
1101     NULL,                      /* current_directory */
1102     NULL,                      /* debug_string */
1103     NULL,                      /* domains */
1104     NULL,                      /* errors_to */
1105     NULL,                      /* expand_gid */
1106     NULL,                      /* expand_uid */
1107     NULL,                      /* expand_more */
1108     NULL,                      /* expand_unseen */
1109     NULL,                      /* extra_headers */
1110     NULL,                      /* fallback_hosts */
1111     NULL,                      /* home_directory */
1112     NULL,                      /* ignore_target_hosts */
1113     NULL,                      /* local_parts */
1114     NULL,                      /* pass_router_name */
1115     NULL,                      /* prefix */
1116     NULL,                      /* redirect_router_name */
1117     NULL,                      /* remove_headers */
1118     NULL,                      /* require_files */
1119     NULL,                      /* router_home_directory */
1120     US"freeze",                /* self */
1121     NULL,                      /* senders */
1122     NULL,                      /* suffix */
1123     NULL,                      /* translate_ip_address */
1124     NULL,                      /* transport_name */
1125
1126     TRUE,                      /* address_test */
1127 #ifdef EXPERIMENTAL_BRIGHTMAIL
1128     FALSE,                     /* bmi_deliver_alternate */
1129     FALSE,                     /* bmi_deliver_default */
1130     FALSE,                     /* bmi_dont_deliver */
1131 #endif
1132     TRUE,                      /* expn */
1133     FALSE,                     /* caseful_local_part */
1134     FALSE,                     /* check_local_user */
1135     FALSE,                     /* disable_logging */
1136     FALSE,                     /* fail_verify_recipient */
1137     FALSE,                     /* fail_verify_sender */
1138     FALSE,                     /* gid_set */
1139     FALSE,                     /* initgroups */
1140     TRUE_UNSET,                /* log_as_local */
1141     TRUE,                      /* more */
1142     FALSE,                     /* pass_on_timeout */
1143     FALSE,                     /* prefix_optional */
1144     TRUE,                      /* repeat_use */
1145     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1146     FALSE,                     /* same_domain_copy_routing */
1147     FALSE,                     /* self_rewrite */
1148     FALSE,                     /* suffix_optional */
1149     FALSE,                     /* verify_only */
1150     TRUE,                      /* verify_recipient */
1151     TRUE,                      /* verify_sender */
1152     FALSE,                     /* uid_set */
1153     FALSE,                     /* unseen */
1154     FALSE,                     /* dsn_lasthop */
1155
1156     self_freeze,               /* self_code */
1157     (uid_t)(-1),               /* uid */
1158     (gid_t)(-1),               /* gid */
1159
1160     NULL,                      /* fallback_hostlist */
1161     NULL,                      /* transport instance */
1162     NULL,                      /* pass_router */
1163     NULL                       /* redirect_router */
1164 };
1165
1166 uschar *router_name            = NULL;
1167
1168 ip_address_item *running_interfaces = NULL;
1169 BOOL    running_in_test_harness = FALSE;
1170
1171 /* This is a weird one. The following string gets patched in the binary by the
1172 script that sets up a copy of Exim for running in the test harness. It seems
1173 that compilers are now clever, and share constant strings if they can.
1174 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1175 make use of the end of this string in order to save space. So the patching then
1176 wrecks this. We defeat this optimization by adding some additional characters
1177 onto the end of the string. */
1178
1179 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1180
1181 int     runrc                  = 0;
1182
1183 uschar *search_error_message   = NULL;
1184 BOOL    search_find_defer      = FALSE;
1185 uschar *self_hostname          = NULL;
1186 uschar *sender_address         = NULL;
1187 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1188 uschar *sender_address_data    = NULL;
1189 BOOL    sender_address_forced  = FALSE;
1190 uschar *sender_address_unrewritten = NULL;
1191 uschar *sender_data            = NULL;
1192 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1193 uschar *sender_fullhost        = NULL;
1194 uschar *sender_helo_name       = NULL;
1195 uschar **sender_host_aliases   = &no_aliases;
1196 uschar *sender_host_address    = NULL;
1197 uschar *sender_host_authenticated = NULL;
1198 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1199 BOOL    sender_host_dnssec     = FALSE;
1200 uschar *sender_host_name       = NULL;
1201 int     sender_host_port       = 0;
1202 BOOL    sender_host_notsocket  = FALSE;
1203 BOOL    sender_host_unknown    = FALSE;
1204 uschar *sender_ident           = NULL;
1205 BOOL    sender_local           = FALSE;
1206 BOOL    sender_name_forced     = FALSE;
1207 uschar *sender_rate            = NULL;
1208 uschar *sender_rate_limit      = NULL;
1209 uschar *sender_rate_period     = NULL;
1210 uschar *sender_rcvhost         = NULL;
1211 BOOL    sender_set_untrusted   = FALSE;
1212 uschar *sender_unqualified_hosts = NULL;
1213 uschar *sender_verify_failure = NULL;
1214 address_item *sender_verified_list  = NULL;
1215 address_item *sender_verified_failed = NULL;
1216 int     sender_verified_rc     = -1;
1217 BOOL    sender_verified_responded = FALSE;
1218 uschar *sending_ip_address     = NULL;
1219 int     sending_port           = -1;
1220 SIGNAL_BOOL sigalrm_seen       = FALSE;
1221 uschar **sighup_argv           = NULL;
1222 int     smtp_accept_count      = 0;
1223 BOOL    smtp_accept_keepalive  = TRUE;
1224 int     smtp_accept_max        = 20;
1225 int     smtp_accept_max_nonmail= 10;
1226 uschar *smtp_accept_max_nonmail_hosts = US"*";
1227 int     smtp_accept_max_per_connection = 1000;
1228 uschar *smtp_accept_max_per_host = NULL;
1229 int     smtp_accept_queue      = 0;
1230 int     smtp_accept_queue_per_connection = 10;
1231 int     smtp_accept_reserve    = 0;
1232 uschar *smtp_active_hostname   = NULL;
1233 BOOL    smtp_authenticated     = FALSE;
1234 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1235                              "Exim $version_number $tod_full"
1236                              "\0<---------------Space to patch smtp_banner->";
1237 BOOL    smtp_batched_input     = FALSE;
1238 BOOL    smtp_check_spool_space = TRUE;
1239 int     smtp_ch_index          = 0;
1240 uschar *smtp_cmd_argument      = NULL;
1241 uschar *smtp_cmd_buffer        = NULL;
1242 time_t  smtp_connection_start  = 0;
1243 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1244 int     smtp_connect_backlog   = 20;
1245 double  smtp_delay_mail        = 0.0;
1246 double  smtp_delay_rcpt        = 0.0;
1247 BOOL    smtp_enforce_sync      = TRUE;
1248 FILE   *smtp_in                = NULL;
1249 BOOL    smtp_input             = FALSE;
1250 int     smtp_load_reserve      = -1;
1251 int     smtp_mailcmd_count     = 0;
1252 FILE   *smtp_out               = NULL;
1253 uschar *smtp_etrn_command      = NULL;
1254 BOOL    smtp_etrn_serialize    = TRUE;
1255 int     smtp_max_synprot_errors= 3;
1256 int     smtp_max_unknown_commands = 3;
1257 uschar *smtp_notquit_reason    = NULL;
1258 uschar *smtp_ratelimit_hosts   = NULL;
1259 uschar *smtp_ratelimit_mail    = NULL;
1260 uschar *smtp_ratelimit_rcpt    = NULL;
1261 uschar *smtp_read_error        = US"";
1262 int     smtp_receive_timeout   = 5*60;
1263 uschar *smtp_receive_timeout_s = NULL;
1264 uschar *smtp_reserve_hosts     = NULL;
1265 BOOL    smtp_return_error_details = FALSE;
1266 int     smtp_rlm_base          = 0;
1267 double  smtp_rlm_factor        = 0.0;
1268 int     smtp_rlm_limit         = 0;
1269 int     smtp_rlm_threshold     = INT_MAX;
1270 int     smtp_rlr_base          = 0;
1271 double  smtp_rlr_factor        = 0.0;
1272 int     smtp_rlr_limit         = 0;
1273 int     smtp_rlr_threshold     = INT_MAX;
1274 BOOL    smtp_use_pipelining    = FALSE;
1275 BOOL    smtp_use_size          = FALSE;
1276 #ifdef EXPERIMENTAL_INTERNATIONAL
1277 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1278 #endif
1279
1280 #ifdef WITH_CONTENT_SCAN
1281 uschar *spamd_address          = US"127.0.0.1 783";
1282 uschar *spam_bar               = NULL;
1283 uschar *spam_report            = NULL;
1284 uschar *spam_action            = NULL;
1285 uschar *spam_score             = NULL;
1286 uschar *spam_score_int         = NULL;
1287 #endif
1288 #ifdef EXPERIMENTAL_SPF
1289 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1290 uschar *spf_header_comment     = NULL;
1291 uschar *spf_received           = NULL;
1292 uschar *spf_result             = NULL;
1293 uschar *spf_smtp_comment       = NULL;
1294 #endif
1295
1296 BOOL    split_spool_directory  = FALSE;
1297 uschar *spool_directory        = US SPOOL_DIRECTORY
1298                            "\0<--------------Space to patch spool_directory->";
1299 #ifdef EXPERIMENTAL_SRS
1300 uschar *srs_config             = NULL;
1301 uschar *srs_db_address         = NULL;
1302 uschar *srs_db_key             = NULL;
1303 int     srs_hashlength         = 6;
1304 int     srs_hashmin            = -1;
1305 int     srs_maxage             = 31;
1306 uschar *srs_orig_recipient     = NULL;
1307 uschar *srs_orig_sender        = NULL;
1308 uschar *srs_recipient          = NULL;
1309 uschar *srs_secrets            = NULL;
1310 uschar *srs_status             = NULL;
1311 BOOL    srs_usehash            = TRUE;
1312 BOOL    srs_usetimestamp       = TRUE;
1313 #endif
1314 BOOL    strict_acl_vars        = FALSE;
1315 int     string_datestamp_offset= -1;
1316 int     string_datestamp_length= 0;
1317 int     string_datestamp_type  = -1;
1318 BOOL    strip_excess_angle_brackets = FALSE;
1319 BOOL    strip_trailing_dot     = FALSE;
1320 uschar *submission_domain      = NULL;
1321 BOOL    submission_mode        = FALSE;
1322 uschar *submission_name        = NULL;
1323 BOOL    suppress_local_fixups  = FALSE;
1324 BOOL    suppress_local_fixups_default = FALSE;
1325 BOOL    synchronous_delivery   = FALSE;
1326 BOOL    syslog_duplication     = TRUE;
1327 int     syslog_facility        = LOG_MAIL;
1328 uschar *syslog_processname     = US"exim";
1329 BOOL    syslog_timestamp       = TRUE;
1330 uschar *system_filter          = NULL;
1331
1332 uschar *system_filter_directory_transport = NULL;
1333 uschar *system_filter_file_transport = NULL;
1334 uschar *system_filter_pipe_transport = NULL;
1335 uschar *system_filter_reply_transport = NULL;
1336
1337 gid_t   system_filter_gid      = 0;
1338 BOOL    system_filter_gid_set  = FALSE;
1339 uid_t   system_filter_uid      = (uid_t)-1;
1340 BOOL    system_filter_uid_set  = FALSE;
1341 BOOL    system_filtering       = FALSE;
1342
1343 BOOL    tcp_nodelay            = TRUE;
1344 #ifdef USE_TCP_WRAPPERS
1345 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1346 #endif
1347 int     test_harness_load_avg  = 0;
1348 int     thismessage_size_limit = 0;
1349 int     timeout_frozen_after   = 0;
1350 BOOL    timestamps_utc         = FALSE;
1351
1352 transport_instance  *transports = NULL;
1353
1354 transport_instance  transport_defaults = {
1355     NULL,                     /* chain pointer */
1356     NULL,                     /* name */
1357     NULL,                     /* info */
1358     NULL,                     /* private options block pointer */
1359     NULL,                     /* driver name */
1360     NULL,                     /* setup entry point */
1361     1,                        /* batch_max */
1362     NULL,                     /* batch_id */
1363     NULL,                     /* home_dir */
1364     NULL,                     /* current_dir */
1365     NULL,                     /* expand-multi-domain */
1366     TRUE,                     /* multi-domain */
1367     FALSE,                    /* overrides_hosts */
1368     100,                      /* max_addresses */
1369     500,                      /* connection_max_messages */
1370     FALSE,                    /* deliver_as_creator */
1371     FALSE,                    /* disable_logging */
1372     FALSE,                    /* initgroups */
1373     FALSE,                    /* uid_set */
1374     FALSE,                    /* gid_set */
1375     (uid_t)(-1),              /* uid */
1376     (gid_t)(-1),              /* gid */
1377     NULL,                     /* expand_uid */
1378     NULL,                     /* expand_gid */
1379     NULL,                     /* warn_message */
1380     NULL,                     /* shadow */
1381     NULL,                     /* shadow_condition */
1382     NULL,                     /* filter_command */
1383     NULL,                     /* add_headers */
1384     NULL,                     /* remove_headers */
1385     NULL,                     /* return_path */
1386     NULL,                     /* debug_string */
1387     NULL,                     /* message_size_limit */
1388     NULL,                     /* headers_rewrite */
1389     NULL,                     /* rewrite_rules */
1390     0,                        /* rewrite_existflags */
1391     300,                      /* filter_timeout */
1392     FALSE,                    /* body_only */
1393     FALSE,                    /* delivery_date_add */
1394     FALSE,                    /* envelope_to_add */
1395     FALSE,                    /* headers_only */
1396     FALSE,                    /* rcpt_include_affixes */
1397     FALSE,                    /* return_path_add */
1398     FALSE,                    /* return_output */
1399     FALSE,                    /* return_fail_output */
1400     FALSE,                    /* log_output */
1401     FALSE,                    /* log_fail_output */
1402     FALSE,                    /* log_defer_output */
1403     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1404                                  1 nor 0 so can detect unset */
1405 #ifdef EXPERIMENTAL_EVENT
1406    ,NULL                      /* event_action */
1407 #endif
1408 };
1409
1410 int     transport_count;
1411 uschar *transport_name          = NULL;
1412 int     transport_newlines;
1413 const uschar **transport_filter_argv  = NULL;
1414 int     transport_filter_timeout;
1415 BOOL    transport_filter_timed_out = FALSE;
1416 int     transport_write_timeout= 0;
1417
1418 tree_node  *tree_dns_fails     = NULL;
1419 tree_node  *tree_duplicates    = NULL;
1420 tree_node  *tree_nonrecipients = NULL;
1421 tree_node  *tree_unusable      = NULL;
1422
1423 BOOL    trusted_caller         = FALSE;
1424 BOOL    trusted_config         = TRUE;
1425 gid_t  *trusted_groups         = NULL;
1426 uid_t  *trusted_users          = NULL;
1427 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1428
1429 uschar *unknown_login          = NULL;
1430 uschar *unknown_username       = NULL;
1431 uschar *untrusted_set_sender   = NULL;
1432
1433 /*  A regex for matching a "From_" line in an incoming message, in the form
1434
1435     From ph10 Fri Jan  5 12:35 GMT 1996
1436
1437 which  the "mail" commands send to the MTA (undocumented, of course), or in
1438 the  form
1439
1440     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1441
1442 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1443 Because  of variations in time formats, just match up to the minutes. That
1444 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1445 so  just require one digit for hours and minutes. The weekday is also absent
1446 in  some forms. */
1447
1448 uschar *uucp_from_pattern      = US
1449    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1450    "(?:"                                          /* Non-extracting bracket */
1451    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1452    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1453    ")"                                            /* End alternation */
1454    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1455
1456 uschar *uucp_from_sender       = US"$1";
1457
1458 uschar *verify_mode            = NULL;
1459 uschar *version_copyright      =
1460  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1461    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1462 uschar *version_date           = US"?";
1463 uschar *version_cnumber        = US"????";
1464 uschar *version_string         = US"?";
1465
1466 uschar *warn_message_file      = NULL;
1467 int     warning_count          = 0;
1468 uschar *warnmsg_delay          = NULL;
1469 uschar *warnmsg_recipients     = NULL;
1470 BOOL    write_rejectlog        = TRUE;
1471
1472
1473 /*  End of globals.c */