9b455c9db65170ccaeb65edf9132366d3dc0a595
[exim.git] / src / src / globals.c
1 /*************************************************
2 *     Exim - an Internet mail transport agent    *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2017 */
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 = nelem(optionlist_auths);
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 BOOL    opt_perl_taintmode     = FALSE;
53 #endif
54
55 #ifdef EXPAND_DLFUNC
56 tree_node *dlobj_anchor        = NULL;
57 #endif
58
59 #ifdef LOOKUP_IBASE
60 uschar *ibase_servers          = NULL;
61 #endif
62
63 #ifdef LOOKUP_LDAP
64 uschar *eldap_ca_cert_dir      = NULL;
65 uschar *eldap_ca_cert_file     = NULL;
66 uschar *eldap_cert_file        = NULL;
67 uschar *eldap_cert_key         = NULL;
68 uschar *eldap_cipher_suite     = NULL;
69 uschar *eldap_default_servers  = NULL;
70 uschar *eldap_require_cert     = NULL;
71 int     eldap_version          = -1;
72 BOOL    eldap_start_tls        = FALSE;
73 #endif
74
75 #ifdef LOOKUP_MYSQL
76 uschar *mysql_servers          = NULL;
77 #endif
78
79 #ifdef LOOKUP_ORACLE
80 uschar *oracle_servers         = NULL;
81 #endif
82
83 #ifdef LOOKUP_PGSQL
84 uschar *pgsql_servers          = NULL;
85 #endif
86
87 #ifdef LOOKUP_REDIS
88 uschar *redis_servers          = NULL;
89 #endif
90
91 #ifdef LOOKUP_SQLITE
92 int     sqlite_lock_timeout    = 5;
93 #endif
94
95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
96 BOOL    move_frozen_messages   = FALSE;
97 #endif
98
99 /* These variables are outside the #ifdef because it keeps the code less
100 cluttered in several places (e.g. during logging) if we can always refer to
101 them. Also, the tls_ variables are now always visible. */
102
103 tls_support tls_in = {
104  -1,   /* tls_active */
105  0,    /* tls_bits */
106  FALSE,/* tls_certificate_verified */
107 #ifdef EXPERIMENTAL_DANE
108  FALSE,/* dane_verified */
109  0,    /* tlsa_usage */
110 #endif
111  NULL, /* tls_cipher */
112  FALSE,/* tls_on_connect */
113  NULL, /* tls_on_connect_ports */
114  NULL, /* tls_ourcert */
115  NULL, /* tls_peercert */
116  NULL, /* tls_peerdn */
117  NULL, /* tls_sni */
118  0     /* tls_ocsp */
119 };
120 tls_support tls_out = {
121  -1,   /* tls_active */
122  0,    /* tls_bits */
123  FALSE,/* tls_certificate_verified */
124 #ifdef EXPERIMENTAL_DANE
125  FALSE,/* dane_verified */
126  0,    /* tlsa_usage */
127 #endif
128  NULL, /* tls_cipher */
129  FALSE,/* tls_on_connect */
130  NULL, /* tls_on_connect_ports */
131  NULL, /* tls_ourcert */
132  NULL, /* tls_peercert */
133  NULL, /* tls_peerdn */
134  NULL, /* tls_sni */
135  0     /* tls_ocsp */
136 };
137
138 uschar *dsn_envid              = NULL;
139 int     dsn_ret                = 0;
140 const pcre  *regex_DSN         = NULL;
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 *openssl_options        = NULL;
147 const pcre *regex_STARTTLS     = NULL;
148 uschar *tls_advertise_hosts    = US"*";
149 uschar *tls_certificate        = NULL;
150 uschar *tls_crl                = NULL;
151 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
152 that's the interop problem which has been observed: GnuTLS suggesting a higher
153 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
154 int     tls_dh_max_bits        = 2236;
155 uschar *tls_dhparam            = NULL;
156 uschar *tls_eccurve            = US"auto";
157 # ifndef DISABLE_OCSP
158 uschar *tls_ocsp_file          = NULL;
159 # endif
160 uschar *tls_privatekey         = NULL;
161 BOOL    tls_remember_esmtp     = FALSE;
162 uschar *tls_require_ciphers    = NULL;
163 uschar *tls_try_verify_hosts   = NULL;
164 uschar *tls_verify_certificates= US"system";
165 uschar *tls_verify_hosts       = NULL;
166 #else   /*!SUPPORT_TLS*/
167 uschar *tls_advertise_hosts    = NULL;
168 #endif
169
170 #ifndef DISABLE_PRDR
171 /* Per Recipient Data Response variables */
172 BOOL    prdr_enable            = FALSE;
173 BOOL    prdr_requested         = FALSE;
174 const pcre *regex_PRDR         = NULL;
175 #endif
176
177 #ifdef SUPPORT_I18N
178 const pcre *regex_UTF8         = NULL;
179 #endif
180
181 /* Input-reading functions for messages, so we can use special ones for
182 incoming TCP/IP. The defaults use stdin. We never need these for any
183 stand-alone tests. */
184
185 #ifndef STAND_ALONE
186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
187 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
188 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
189 int (*receive_getc)(unsigned)  = stdin_getc;
190 uschar * (*receive_getbuf)(unsigned *)  = NULL;
191 void (*receive_get_cache)(void)= NULL;
192 int (*receive_ungetc)(int)     = stdin_ungetc;
193 int (*receive_feof)(void)      = stdin_feof;
194 int (*receive_ferror)(void)    = stdin_ferror;
195 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
196 #endif
197
198
199 /* List of per-address expansion variables for clearing and saving/restoring
200 when verifying one address while routing/verifying another. We have to have
201 the size explicit, because it is referenced from more than one module. */
202
203 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
204   CUSS &deliver_address_data,
205   CUSS &deliver_domain,
206   CUSS &deliver_domain_data,
207   CUSS &deliver_domain_orig,
208   CUSS &deliver_domain_parent,
209   CUSS &deliver_localpart,
210   CUSS &deliver_localpart_data,
211   CUSS &deliver_localpart_orig,
212   CUSS &deliver_localpart_parent,
213   CUSS &deliver_localpart_prefix,
214   CUSS &deliver_localpart_suffix,
215   CUSS (uschar **)(&deliver_recipients),
216   CUSS &deliver_host,
217   CUSS &deliver_home,
218   CUSS &address_file,
219   CUSS &address_pipe,
220   CUSS &self_hostname,
221   NULL };
222
223 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
224
225 /* General global variables */
226
227 header_line *acl_added_headers = NULL;
228 tree_node *acl_anchor          = NULL;
229 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
230                                   NULL, NULL, NULL, NULL};
231 int     acl_narg               = 0;
232
233 int     acl_level              = 0;
234
235 uschar *acl_not_smtp           = NULL;
236 #ifdef WITH_CONTENT_SCAN
237 uschar *acl_not_smtp_mime      = NULL;
238 #endif
239 uschar *acl_not_smtp_start     = NULL;
240 uschar *acl_removed_headers    = NULL;
241 uschar *acl_smtp_auth          = NULL;
242 uschar *acl_smtp_connect       = NULL;
243 uschar *acl_smtp_data          = NULL;
244 #ifndef DISABLE_PRDR
245 uschar *acl_smtp_data_prdr     = US"accept";
246 #endif
247 #ifndef DISABLE_DKIM
248 uschar *acl_smtp_dkim          = NULL;
249 #endif
250 uschar *acl_smtp_etrn          = NULL;
251 uschar *acl_smtp_expn          = NULL;
252 uschar *acl_smtp_helo          = NULL;
253 uschar *acl_smtp_mail          = NULL;
254 uschar *acl_smtp_mailauth      = NULL;
255 #ifdef WITH_CONTENT_SCAN
256 uschar *acl_smtp_mime          = NULL;
257 #endif
258 uschar *acl_smtp_notquit       = NULL;
259 uschar *acl_smtp_predata       = NULL;
260 uschar *acl_smtp_quit          = NULL;
261 uschar *acl_smtp_rcpt          = NULL;
262 uschar *acl_smtp_starttls      = NULL;
263 uschar *acl_smtp_vrfy          = NULL;
264
265 BOOL    acl_temp_details       = FALSE;
266 tree_node *acl_var_c           = NULL;
267 tree_node *acl_var_m           = NULL;
268 uschar *acl_verify_message     = NULL;
269 string_item *acl_warn_logged   = NULL;
270
271 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
272 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
273
274 uschar *acl_wherenames[]       = { US"RCPT",
275                                    US"MAIL",
276                                    US"PREDATA",
277                                    US"MIME",
278                                    US"DKIM",
279                                    US"DATA",
280 #ifndef DISABLE_PRDR
281                                    US"PRDR",
282 #endif
283                                    US"non-SMTP",
284                                    US"AUTH",
285                                    US"connection",
286                                    US"ETRN",
287                                    US"EXPN",
288                                    US"EHLO or HELO",
289                                    US"MAILAUTH",
290                                    US"non-SMTP-start",
291                                    US"NOTQUIT",
292                                    US"QUIT",
293                                    US"STARTTLS",
294                                    US"VRFY",
295                                    US"delivery",
296                                    US"unknown"
297                                  };
298
299 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
300                                    US"550",     /* MAIL */
301                                    US"550",     /* PREDATA */
302                                    US"550",     /* MIME */
303                                    US"550",     /* DKIM */
304                                    US"550",     /* DATA */
305 #ifndef DISABLE_PRDR
306                                    US"550",    /* RCPT PRDR */
307 #endif
308                                    US"0",       /* not SMTP; not relevant */
309                                    US"503",     /* AUTH */
310                                    US"550",     /* connect */
311                                    US"458",     /* ETRN */
312                                    US"550",     /* EXPN */
313                                    US"550",     /* HELO/EHLO */
314                                    US"0",       /* MAILAUTH; not relevant */
315                                    US"0",       /* not SMTP; not relevant */
316                                    US"0",       /* NOTQUIT; not relevant */
317                                    US"0",       /* QUIT; not relevant */
318                                    US"550",     /* STARTTLS */
319                                    US"252",     /* VRFY */
320                                    US"0",       /* delivery; not relevant */
321                                    US"0"        /* unknown; not relevant */
322                                  };
323
324 BOOL    active_local_from_check = FALSE;
325 BOOL    active_local_sender_retain = FALSE;
326 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
327 uschar *add_environment        = NULL;
328 address_item  *addr_duplicate  = NULL;
329
330 address_item address_defaults = {
331   NULL,                 /* next */
332   NULL,                 /* parent */
333   NULL,                 /* first */
334   NULL,                 /* dupof */
335   NULL,                 /* start_router */
336   NULL,                 /* router */
337   NULL,                 /* transport */
338   NULL,                 /* host_list */
339   NULL,                 /* host_used */
340   NULL,                 /* fallback_hosts */
341   NULL,                 /* reply */
342   NULL,                 /* retries */
343   NULL,                 /* address */
344   NULL,                 /* unique */
345   NULL,                 /* cc_local_part */
346   NULL,                 /* lc_local_part */
347   NULL,                 /* local_part */
348   NULL,                 /* prefix */
349   NULL,                 /* suffix */
350   NULL,                 /* domain */
351   NULL,                 /* address_retry_key */
352   NULL,                 /* domain_retry_key */
353   NULL,                 /* current_dir */
354   NULL,                 /* home_dir */
355   NULL,                 /* message */
356   NULL,                 /* user_message */
357   NULL,                 /* onetime_parent */
358   NULL,                 /* pipe_expandn */
359   NULL,                 /* return_filename */
360   NULL,                 /* self_hostname */
361   NULL,                 /* shadow_message */
362 #ifdef SUPPORT_TLS
363   NULL,                 /* cipher */
364   NULL,                 /* ourcert */
365   NULL,                 /* peercert */
366   NULL,                 /* peerdn */
367   OCSP_NOT_REQ,         /* ocsp */
368 #endif
369 #ifdef EXPERIMENTAL_DSN_INFO
370   NULL,                 /* smtp_greeting */
371   NULL,                 /* helo_response */
372 #endif
373   NULL,                 /* authenticator */
374   NULL,                 /* auth_id */
375   NULL,                 /* auth_sndr */
376   NULL,                 /* dsn_orcpt */
377   0,                    /* dsn_flags */
378   0,                    /* dsn_aware */
379   (uid_t)(-1),          /* uid */
380   (gid_t)(-1),          /* gid */
381   0,                    /* flags */
382   { 0 },                /* domain_cache - any larger array should be zeroed */
383   { 0 },                /* localpart_cache - ditto */
384   -1,                   /* mode */
385   0,                    /* more_errno */
386   ERRNO_UNKNOWNERROR,   /* basic_errno */
387   0,                    /* child_count */
388   -1,                   /* return_file */
389   SPECIAL_NONE,         /* special_action */
390   DEFER,                /* transport_return */
391   {                     /* fields that are propagated to children */
392     NULL,               /* address_data */
393     NULL,               /* domain_data */
394     NULL,               /* localpart_data */
395     NULL,               /* errors_address */
396     NULL,               /* extra_headers */
397     NULL,               /* remove_headers */
398 #ifdef EXPERIMENTAL_SRS
399     NULL,               /* srs_sender */
400 #endif
401 #ifdef SUPPORT_I18N
402     FALSE,              /* utf8 */
403 #endif
404   }
405 };
406
407 uschar *address_file           = NULL;
408 uschar *address_pipe           = NULL;
409 BOOL    address_test_mode      = FALSE;
410 tree_node *addresslist_anchor  = NULL;
411 int     addresslist_count      = 0;
412 gid_t  *admin_groups           = NULL;
413 BOOL    admin_user             = FALSE;
414 BOOL    allow_auth_unadvertised= FALSE;
415 BOOL    allow_domain_literals  = FALSE;
416 BOOL    allow_mx_to_ip         = FALSE;
417 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
418 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
419 BOOL    allow_utf8_domains     = FALSE;
420 uschar *authenticated_fail_id  = NULL;
421 uschar *authenticated_id       = NULL;
422 uschar *authenticated_sender   = NULL;
423 BOOL    authentication_failed  = FALSE;
424 auth_instance  *auths          = NULL;
425 uschar *auth_advertise_hosts   = US"*";
426 auth_instance auth_defaults    = {
427     NULL,                      /* chain pointer */
428     NULL,                      /* name */
429     NULL,                      /* info */
430     NULL,                      /* private options block pointer */
431     NULL,                      /* driver_name */
432     NULL,                      /* advertise_condition */
433     NULL,                      /* client_condition */
434     NULL,                      /* public_name */
435     NULL,                      /* set_id */
436     NULL,                      /* set_client_id */
437     NULL,                      /* server_mail_auth_condition */
438     NULL,                      /* server_debug_string */
439     NULL,                      /* server_condition */
440     FALSE,                     /* client */
441     FALSE,                     /* server */
442     FALSE                      /* advertised */
443 };
444
445 uschar *auth_defer_msg         = US"reason not recorded";
446 uschar *auth_defer_user_msg    = US"";
447 uschar *auth_vars[AUTH_VARS];
448 int     auto_thaw              = 0;
449 #ifdef WITH_CONTENT_SCAN
450 BOOL    av_failed              = FALSE;
451 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
452 #endif
453
454 BOOL    background_daemon      = TRUE;
455
456 #if BASE_62 == 62
457 uschar *base62_chars=
458     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
459 #else
460 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
461 #endif
462
463 uschar *bi_command             = NULL;
464 uschar *big_buffer             = NULL;
465 int     big_buffer_size        = BIG_BUFFER_SIZE;
466 #ifdef EXPERIMENTAL_BRIGHTMAIL
467 uschar *bmi_alt_location       = NULL;
468 uschar *bmi_base64_tracker_verdict = NULL;
469 uschar *bmi_base64_verdict     = NULL;
470 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
471 int     bmi_deliver            = 1;
472 int     bmi_run                = 0;
473 uschar *bmi_verdicts           = NULL;
474 #endif
475 int     bsmtp_transaction_linecount = 0;
476 int     body_8bitmime          = 0;
477 int     body_linecount         = 0;
478 int     body_zerocount         = 0;
479 uschar *bounce_message_file    = NULL;
480 uschar *bounce_message_text    = NULL;
481 uschar *bounce_recipient       = NULL;
482 BOOL    bounce_return_body     = TRUE;
483 int     bounce_return_linesize_limit = 998;
484 BOOL    bounce_return_message  = TRUE;
485 int     bounce_return_size_limit = 100*1024;
486 uschar *bounce_sender_authentication = NULL;
487 uschar *builtin_macros_create_trigger = NULL;
488
489 uschar *callout_address        = NULL;
490 int     callout_cache_domain_positive_expire = 7*24*60*60;
491 int     callout_cache_domain_negative_expire = 3*60*60;
492 int     callout_cache_positive_expire = 24*60*60;
493 int     callout_cache_negative_expire = 2*60*60;
494 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
495 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
496 int     check_log_inodes       = 100;
497 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
498 BOOL    check_rfc2047_length   = TRUE;
499 int     check_spool_inodes     = 100;
500 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
501
502 uschar *chunking_advertise_hosts = US"*";
503 unsigned chunking_datasize     = 0;
504 unsigned chunking_data_left    = 0;
505 BOOL    chunking_offered       = FALSE;
506 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
507 const pcre *regex_CHUNKING     = NULL;
508
509 uschar *client_authenticator   = NULL;
510 uschar *client_authenticated_id = NULL;
511 uschar *client_authenticated_sender = NULL;
512 int     clmacro_count          = 0;
513 uschar *clmacros[MAX_CLMACROS];
514 BOOL    commandline_checks_require_admin = FALSE;
515 BOOL    config_changed         = FALSE;
516 FILE   *config_file            = NULL;
517 const uschar *config_filename  = NULL;
518 int     config_lineno          = 0;
519 #ifdef CONFIGURE_GROUP
520 gid_t   config_gid             = CONFIGURE_GROUP;
521 #else
522 gid_t   config_gid             = 0;
523 #endif
524 uschar *config_main_filelist   = US CONFIGURE_FILE
525                          "\0<-----------Space to patch configure_filename->";
526 uschar *config_main_filename   = NULL;
527 uschar *config_main_directory  = NULL;
528
529 #ifdef CONFIGURE_OWNER
530 uid_t   config_uid             = CONFIGURE_OWNER;
531 #else
532 uid_t   config_uid             = 0;
533 #endif
534
535 int     connection_max_messages= -1;
536 uschar *continue_proxy_cipher  = NULL;
537 uschar *continue_hostname      = NULL;
538 uschar *continue_host_address  = NULL;
539 BOOL    continue_more          = FALSE;
540 int     continue_sequence      = 1;
541 uschar *continue_transport     = NULL;
542
543 uschar *csa_status             = NULL;
544 cut_t   cutthrough = {
545   FALSE,                                /* verify-only: normal delivery */
546   FALSE,                                /* delivery: when to attempt */
547   FALSE,                                /* on defer: spool locally */
548   FALSE,                                /* not a TLS conn yet */
549   -1,                                   /* fd: open connection */
550   0,                                    /* nrcpt: number of addresses */
551 };
552
553 BOOL    daemon_listen          = FALSE;
554 uschar *daemon_smtp_port       = US"smtp";
555 int     daemon_startup_retries = 9;
556 int     daemon_startup_sleep   = 30;
557
558 #ifdef EXPERIMENTAL_DCC
559 BOOL    dcc_direct_add_header  = FALSE;
560 uschar *dcc_header             = NULL;
561 uschar *dcc_result             = NULL;
562 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
563 uschar *dccifd_options         = US"header";
564 #endif
565
566 BOOL    debug_daemon           = FALSE;
567 int     debug_fd               = -1;
568 FILE   *debug_file             = NULL;
569 int     debug_notall[]         = {
570   Di_memory,
571   -1
572 };
573 bit_table debug_options[]      = { /* must be in alphabetical order */
574   BIT_TABLE(D, acl),
575   BIT_TABLE(D, all),
576   BIT_TABLE(D, auth),
577   BIT_TABLE(D, deliver),
578   BIT_TABLE(D, dns),
579   BIT_TABLE(D, dnsbl),
580   BIT_TABLE(D, exec),
581   BIT_TABLE(D, expand),
582   BIT_TABLE(D, filter),
583   BIT_TABLE(D, hints_lookup),
584   BIT_TABLE(D, host_lookup),
585   BIT_TABLE(D, ident),
586   BIT_TABLE(D, interface),
587   BIT_TABLE(D, lists),
588   BIT_TABLE(D, load),
589   BIT_TABLE(D, local_scan),
590   BIT_TABLE(D, lookup),
591   BIT_TABLE(D, memory),
592   BIT_TABLE(D, pid),
593   BIT_TABLE(D, process_info),
594   BIT_TABLE(D, queue_run),
595   BIT_TABLE(D, receive),
596   BIT_TABLE(D, resolver),
597   BIT_TABLE(D, retry),
598   BIT_TABLE(D, rewrite),
599   BIT_TABLE(D, route),
600   BIT_TABLE(D, timestamp),
601   BIT_TABLE(D, tls),
602   BIT_TABLE(D, transport),
603   BIT_TABLE(D, uid),
604   BIT_TABLE(D, verify),
605 };
606 int     debug_options_count    = nelem(debug_options);
607
608 unsigned int debug_selector    = 0;
609 BOOL    debug_store            = FALSE;
610 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
611 uschar *delay_warning_condition=
612   US"${if or {"
613             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
614             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
615             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
616             "} {no}{yes}}";
617 BOOL    delivery_date_remove   = TRUE;
618 uschar *deliver_address_data   = NULL;
619 int     deliver_datafile       = -1;
620 const uschar *deliver_domain   = NULL;
621 uschar *deliver_domain_data    = NULL;
622 const uschar *deliver_domain_orig = NULL;
623 const uschar *deliver_domain_parent = NULL;
624 BOOL    deliver_drop_privilege = FALSE;
625 BOOL    deliver_firsttime      = FALSE;
626 BOOL    deliver_force          = FALSE;
627 BOOL    deliver_freeze         = FALSE;
628 time_t  deliver_frozen_at      = 0;
629 uschar *deliver_home           = NULL;
630 const uschar *deliver_host     = NULL;
631 const uschar *deliver_host_address = NULL;
632 int     deliver_host_port      = 0;
633 uschar *deliver_in_buffer      = NULL;
634 ino_t   deliver_inode          = 0;
635 uschar *deliver_localpart      = NULL;
636 uschar *deliver_localpart_data = NULL;
637 uschar *deliver_localpart_orig = NULL;
638 uschar *deliver_localpart_parent = NULL;
639 uschar *deliver_localpart_prefix = NULL;
640 uschar *deliver_localpart_suffix = NULL;
641 BOOL    deliver_force_thaw     = FALSE;
642 BOOL    deliver_manual_thaw    = FALSE;
643 uschar *deliver_out_buffer     = NULL;
644 int     deliver_queue_load_max = -1;
645 address_item  *deliver_recipients = NULL;
646 uschar *deliver_selectstring   = NULL;
647 BOOL    deliver_selectstring_regex = FALSE;
648 uschar *deliver_selectstring_sender = NULL;
649 BOOL    deliver_selectstring_sender_regex = FALSE;
650 BOOL    disable_callout_flush  = FALSE;
651 BOOL    disable_delay_flush    = FALSE;
652 #ifdef ENABLE_DISABLE_FSYNC
653 BOOL    disable_fsync          = FALSE;
654 #endif
655 BOOL    disable_ipv6           = FALSE;
656 BOOL    disable_logging        = FALSE;
657
658 #ifndef DISABLE_DKIM
659 BOOL    dkim_collect_input       = FALSE;
660 uschar *dkim_cur_signer          = NULL;
661 BOOL    dkim_disable_verify      = FALSE;
662 int     dkim_key_length          = 0;
663 uschar *dkim_signers             = NULL;
664 uschar *dkim_signing_domain      = NULL;
665 uschar *dkim_signing_selector    = NULL;
666 uschar *dkim_verify_signers      = US"$dkim_signers";
667 #endif
668 #ifdef EXPERIMENTAL_DMARC
669 BOOL    dmarc_has_been_checked  = FALSE;
670 uschar *dmarc_ar_header         = NULL;
671 uschar *dmarc_domain_policy     = NULL;
672 uschar *dmarc_forensic_sender   = NULL;
673 uschar *dmarc_history_file      = NULL;
674 uschar *dmarc_status            = NULL;
675 uschar *dmarc_status_text       = NULL;
676 uschar *dmarc_tld_file          = NULL;
677 uschar *dmarc_used_domain       = NULL;
678 BOOL    dmarc_disable_verify    = FALSE;
679 BOOL    dmarc_enable_forensic   = FALSE;
680 #endif
681
682 uschar *dns_again_means_nonexist = NULL;
683 int     dns_csa_search_limit   = 5;
684 BOOL    dns_csa_use_reverse    = TRUE;
685 #ifdef EXPERIMENTAL_DANE
686 int     dns_dane_ok            = -1;
687 #endif
688 uschar *dns_ipv4_lookup        = NULL;
689 int     dns_retrans            = 0;
690 int     dns_retry              = 0;
691 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
692 uschar *dns_trust_aa           = NULL;
693 int     dns_use_edns0          = -1; /* <0 = not coerced */
694 uschar *dnslist_domain         = NULL;
695 uschar *dnslist_matched        = NULL;
696 uschar *dnslist_text           = NULL;
697 uschar *dnslist_value          = NULL;
698 tree_node *domainlist_anchor   = NULL;
699 int     domainlist_count       = 0;
700 BOOL    dont_deliver           = FALSE;
701 BOOL    dot_ends               = TRUE;
702 BOOL    drop_cr                = FALSE;         /* No longer used */
703 uschar *dsn_from               = US DEFAULT_DSN_FROM;
704
705 BOOL    enable_dollar_recipients = FALSE;
706 BOOL    envelope_to_remove     = TRUE;
707 int     errno_quota            = ERRNO_QUOTA;
708 uschar *errors_copy            = NULL;
709 int     error_handling         = ERRORS_SENDER;
710 uschar *errors_reply_to        = NULL;
711 int     errors_sender_rc       = EXIT_FAILURE;
712 #ifndef DISABLE_EVENT
713 uschar *event_action             = NULL;        /* expansion for delivery events */
714 uschar *event_data               = NULL;        /* auxiliary data variable for event */
715 int     event_defer_errno        = 0;
716 const uschar *event_name         = NULL;        /* event name variable */
717 #endif
718
719
720 gid_t   exim_gid               = EXIM_GID;
721 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
722 uschar *exim_path              = US BIN_DIRECTORY "/exim"
723                         "\0<---------------Space to patch exim_path->";
724 uid_t   exim_uid               = EXIM_UID;
725 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
726 int     expand_level           = 0;             /* Nesting depth, indent for debug */
727 int     expand_forbid          = 0;
728 int     expand_nlength[EXPAND_MAXN+1];
729 int     expand_nmax            = -1;
730 uschar *expand_nstring[EXPAND_MAXN+1];
731 BOOL    expand_string_forcedfail = FALSE;
732 uschar *expand_string_message;
733 BOOL    extract_addresses_remove_arguments = TRUE;
734 uschar *extra_local_interfaces = NULL;
735
736 int     fake_response          = OK;
737 uschar *fake_response_text     = US"Your message has been rejected but is "
738                                    "being kept for evaluation.\nIf it was a "
739                                    "legitimate message, it may still be "
740                                    "delivered to the target recipient(s).";
741 int     filter_n[FILTER_VARIABLE_COUNT];
742 BOOL    filter_running         = FALSE;
743 int     filter_sn[FILTER_VARIABLE_COUNT];
744 int     filter_test            = FTEST_NONE;
745 uschar *filter_test_sfile      = NULL;
746 uschar *filter_test_ufile      = NULL;
747 uschar *filter_thisaddress     = NULL;
748 int     finduser_retries       = 0;
749 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
750 uschar *freeze_tell            = NULL;
751 uschar *freeze_tell_config     = NULL;
752 uschar *fudged_queue_times     = US"";
753
754 uschar *gecos_name             = NULL;
755 uschar *gecos_pattern          = NULL;
756 rewrite_rule  *global_rewrite_rules = NULL;
757
758 uschar *headers_charset        = US HEADERS_CHARSET;
759 int     header_insert_maxlen   = 64 * 1024;
760 header_line  *header_last      = NULL;
761 header_line  *header_list      = NULL;
762 int     header_maxsize         = HEADER_MAXSIZE;
763 int     header_line_maxsize    = 0;
764
765 header_name header_names[] = {
766   { US"bcc",            3, TRUE,  htype_bcc },
767   { US"cc",             2, TRUE,  htype_cc },
768   { US"date",           4, TRUE,  htype_date },
769   { US"delivery-date", 13, FALSE, htype_delivery_date },
770   { US"envelope-to",   11, FALSE, htype_envelope_to },
771   { US"from",           4, TRUE,  htype_from },
772   { US"message-id",    10, TRUE,  htype_id },
773   { US"received",       8, FALSE, htype_received },
774   { US"reply-to",       8, FALSE, htype_reply_to },
775   { US"return-path",   11, FALSE, htype_return_path },
776   { US"sender",         6, TRUE,  htype_sender },
777   { US"subject",        7, FALSE, htype_subject },
778   { US"to",             2, TRUE,  htype_to }
779 };
780
781 int header_names_size          = sizeof(header_names)/sizeof(header_name);
782
783 BOOL    header_rewritten       = FALSE;
784 uschar *helo_accept_junk_hosts = NULL;
785 uschar *helo_allow_chars       = US"";
786 uschar *helo_lookup_domains    = US"@ : @[]";
787 uschar *helo_try_verify_hosts  = NULL;
788 BOOL    helo_verified          = FALSE;
789 BOOL    helo_verify_failed     = FALSE;
790 uschar *helo_verify_hosts      = NULL;
791 const uschar *hex_digits       = CUS"0123456789abcdef";
792 uschar *hold_domains           = NULL;
793 BOOL    host_checking          = FALSE;
794 BOOL    host_checking_callout  = FALSE;
795 uschar *host_data              = NULL;
796 BOOL    host_find_failed_syntax= FALSE;
797 uschar *host_lookup            = NULL;
798 BOOL    host_lookup_deferred   = FALSE;
799 BOOL    host_lookup_failed     = FALSE;
800 uschar *host_lookup_order      = US"bydns:byaddr";
801 uschar *host_lookup_msg        = US"";
802 int     host_number            = 0;
803 uschar *host_number_string     = NULL;
804 uschar *host_reject_connection = NULL;
805 tree_node *hostlist_anchor     = NULL;
806 int     hostlist_count         = 0;
807 uschar *hosts_treat_as_local   = NULL;
808 uschar *hosts_connection_nolog = NULL;
809
810 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
811 BOOL    ignore_fromline_local  = FALSE;
812 uschar *ignore_fromline_hosts  = NULL;
813 BOOL    inetd_wait_mode        = FALSE;
814 int     inetd_wait_timeout     = -1;
815 uschar *initial_cwd            = NULL;
816 uschar *interface_address      = NULL;
817 int     interface_port         = -1;
818 BOOL    is_inetd               = FALSE;
819 uschar *iterate_item           = NULL;
820
821 int     journal_fd             = -1;
822
823 uschar *keep_environment       = NULL;
824
825 int     keep_malformed         = 4*24*60*60;    /* 4 days */
826
827 uschar *eldap_dn               = NULL;
828 int     load_average           = -2;
829 BOOL    local_error_message    = FALSE;
830 BOOL    local_from_check       = TRUE;
831 uschar *local_from_prefix      = NULL;
832 uschar *local_from_suffix      = NULL;
833
834 #if HAVE_IPV6
835 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
836 #else
837 uschar *local_interfaces       = US"0.0.0.0";
838 #endif
839
840 uschar *local_scan_data        = NULL;
841 int     local_scan_timeout     = 5*60;
842 BOOL    local_sender_retain    = FALSE;
843 gid_t   local_user_gid         = (gid_t)(-1);
844 uid_t   local_user_uid         = (uid_t)(-1);
845
846 tree_node *localpartlist_anchor= NULL;
847 int     localpartlist_count    = 0;
848 uschar *log_buffer             = NULL;
849
850 int     log_default[]          = { /* for initializing log_selector */
851   Li_acl_warn_skipped,
852   Li_connection_reject,
853   Li_delay_delivery,
854   Li_dnslist_defer,
855   Li_etrn,
856   Li_host_lookup_failed,
857   Li_lost_incoming_connection,
858   Li_outgoing_interface, /* see d_log_interface in deliver.c */
859   Li_queue_run,
860   Li_rejected_header,
861   Li_retry_defer,
862   Li_sender_verify_fail,
863   Li_size_reject,
864   Li_skip_delivery,
865   Li_smtp_confirmation,
866   Li_tls_certificate_verified,
867   Li_tls_cipher,
868   -1
869 };
870
871 uschar *log_file_path          = US LOG_FILE_PATH
872                            "\0<--------------Space to patch log_file_path->";
873
874 int     log_notall[]           = {
875   -1
876 };
877 bit_table log_options[]        = { /* must be in alphabetical order */
878   BIT_TABLE(L, 8bitmime),
879   BIT_TABLE(L, acl_warn_skipped),
880   BIT_TABLE(L, address_rewrite),
881   BIT_TABLE(L, all),
882   BIT_TABLE(L, all_parents),
883   BIT_TABLE(L, arguments),
884   BIT_TABLE(L, connection_reject),
885   BIT_TABLE(L, delay_delivery),
886   BIT_TABLE(L, deliver_time),
887   BIT_TABLE(L, delivery_size),
888   BIT_TABLE(L, dnslist_defer),
889   BIT_TABLE(L, dnssec),
890   BIT_TABLE(L, etrn),
891   BIT_TABLE(L, host_lookup_failed),
892   BIT_TABLE(L, ident_timeout),
893   BIT_TABLE(L, incoming_interface),
894   BIT_TABLE(L, incoming_port),
895   BIT_TABLE(L, lost_incoming_connection),
896   BIT_TABLE(L, outgoing_interface),
897   BIT_TABLE(L, outgoing_port),
898   BIT_TABLE(L, pid),
899 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
900   BIT_TABLE(L, proxy),
901 #endif
902   BIT_TABLE(L, queue_run),
903   BIT_TABLE(L, queue_time),
904   BIT_TABLE(L, queue_time_overall),
905   BIT_TABLE(L, received_recipients),
906   BIT_TABLE(L, received_sender),
907   BIT_TABLE(L, rejected_header),
908   { US"rejected_headers", Li_rejected_header },
909   BIT_TABLE(L, retry_defer),
910   BIT_TABLE(L, return_path_on_delivery),
911   BIT_TABLE(L, sender_on_delivery),
912   BIT_TABLE(L, sender_verify_fail),
913   BIT_TABLE(L, size_reject),
914   BIT_TABLE(L, skip_delivery),
915   BIT_TABLE(L, smtp_confirmation),
916   BIT_TABLE(L, smtp_connection),
917   BIT_TABLE(L, smtp_incomplete_transaction),
918   BIT_TABLE(L, smtp_mailauth),
919   BIT_TABLE(L, smtp_no_mail),
920   BIT_TABLE(L, smtp_protocol_error),
921   BIT_TABLE(L, smtp_syntax_error),
922   BIT_TABLE(L, subject),
923   BIT_TABLE(L, tls_certificate_verified),
924   BIT_TABLE(L, tls_cipher),
925   BIT_TABLE(L, tls_peerdn),
926   BIT_TABLE(L, tls_sni),
927   BIT_TABLE(L, unknown_in_list),
928 };
929 int     log_options_count      = nelem(log_options);
930
931 int     log_reject_target      = 0;
932 unsigned int log_selector[log_selector_size]; /* initialized in main() */
933 uschar *log_selector_string    = NULL;
934 FILE   *log_stderr             = NULL;
935 BOOL    log_testing_mode       = FALSE;
936 BOOL    log_timezone           = FALSE;
937 uschar *login_sender_address   = NULL;
938 uschar *lookup_dnssec_authenticated = NULL;
939 int     lookup_open_max        = 25;
940 uschar *lookup_value           = NULL;
941
942 macro_item  *macros            = NULL;
943 macro_item  *mlast             = NULL;
944 BOOL    macros_builtin_created = FALSE;
945 uschar *mailstore_basename     = NULL;
946 #ifdef WITH_CONTENT_SCAN
947 uschar *malware_name           = NULL;  /* Virus Name */
948 #endif
949 int     max_received_linelength= 0;
950 int     max_username_length    = 0;
951 int     message_age            = 0;
952 uschar *message_body           = NULL;
953 uschar *message_body_end       = NULL;
954 BOOL    message_body_newlines  = FALSE;
955 int     message_body_size      = 0;
956 int     message_body_visible   = 500;
957 int     message_ended          = END_NOTSTARTED;
958 uschar *message_headers        = NULL;
959 uschar *message_id;
960 uschar *message_id_domain      = NULL;
961 uschar *message_id_text        = NULL;
962 struct timeval message_id_tv   = { 0, 0 };
963 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
964 uschar *message_id_external;
965 int     message_linecount      = 0;
966 BOOL    message_logs           = TRUE;
967 int     message_size           = 0;
968 uschar *message_size_limit     = US"50M";
969 #ifdef SUPPORT_I18N
970 BOOL    message_smtputf8       = FALSE;
971 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
972 #endif
973 uschar  message_subdir[2]      = { 0, 0 };
974 uschar *message_reference      = NULL;
975
976 /* MIME ACL expandables */
977 #ifdef WITH_CONTENT_SCAN
978 int     mime_anomaly_level     = 0;
979 const uschar *mime_anomaly_text      = NULL;
980 uschar *mime_boundary          = NULL;
981 uschar *mime_charset           = NULL;
982 uschar *mime_content_description = NULL;
983 uschar *mime_content_disposition = NULL;
984 uschar *mime_content_id        = NULL;
985 unsigned int mime_content_size = 0;
986 uschar *mime_content_transfer_encoding = NULL;
987 uschar *mime_content_type      = NULL;
988 uschar *mime_decoded_filename  = NULL;
989 uschar *mime_filename          = NULL;
990 int     mime_is_multipart      = 0;
991 int     mime_is_coverletter    = 0;
992 int     mime_is_rfc822         = 0;
993 int     mime_part_count        = -1;
994 #endif
995
996 BOOL    mua_wrapper            = FALSE;
997
998 uid_t  *never_users            = NULL;
999 #ifdef WITH_CONTENT_SCAN
1000 BOOL    no_mbox_unspool        = FALSE;
1001 #endif
1002 BOOL    no_multiline_responses = FALSE;
1003
1004 const int on                   = 1;     /* for setsockopt */
1005 const int off                  = 0;
1006
1007 uid_t   original_euid;
1008 gid_t   originator_gid;
1009 uschar *originator_login       = NULL;
1010 uschar *originator_name        = NULL;
1011 uid_t   originator_uid;
1012 uschar *override_local_interfaces = NULL;
1013 uschar *override_pid_file_path = NULL;
1014
1015 BOOL    parse_allow_group      = FALSE;
1016 BOOL    parse_found_group      = FALSE;
1017 uschar *percent_hack_domains   = NULL;
1018 uschar *pid_file_path          = US PID_FILE_PATH
1019                            "\0<--------------Space to patch pid_file_path->";
1020 BOOL    pipelining_enable      = TRUE;
1021 uschar *pipelining_advertise_hosts = US"*";
1022 BOOL    preserve_message_logs  = FALSE;
1023 uschar *primary_hostname       = NULL;
1024 BOOL    print_topbitchars      = FALSE;
1025 uschar  process_info[PROCESS_INFO_SIZE];
1026 int     process_info_len       = 0;
1027 uschar *process_log_path       = NULL;
1028 BOOL    prod_requires_admin    = TRUE;
1029
1030 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1031 uschar *hosts_proxy            = US"";
1032 uschar *proxy_external_address = US"";
1033 int     proxy_external_port    = 0;
1034 uschar *proxy_local_address    = US"";
1035 int     proxy_local_port       = 0;
1036 BOOL    proxy_session          = FALSE;
1037 BOOL    proxy_session_failed   = FALSE;
1038 #endif
1039
1040 uschar *prvscheck_address      = NULL;
1041 uschar *prvscheck_keynum       = NULL;
1042 uschar *prvscheck_result       = NULL;
1043
1044
1045 const uschar *qualify_domain_recipient = NULL;
1046 uschar *qualify_domain_sender  = NULL;
1047 BOOL    queue_2stage           = FALSE;
1048 uschar *queue_domains          = NULL;
1049 int     queue_interval         = -1;
1050 BOOL    queue_list_requires_admin = TRUE;
1051 uschar *queue_name             = US"";
1052 BOOL    queue_only             = FALSE;
1053 uschar *queue_only_file        = NULL;
1054 int     queue_only_load        = -1;
1055 BOOL    queue_only_load_latch  = TRUE;
1056 BOOL    queue_only_override    = TRUE;
1057 BOOL    queue_only_policy      = FALSE;
1058 BOOL    queue_run_first_delivery = FALSE;
1059 BOOL    queue_run_force        = FALSE;
1060 BOOL    queue_run_in_order     = FALSE;
1061 BOOL    queue_run_local        = FALSE;
1062 uschar *queue_run_max          = US"5";
1063 pid_t   queue_run_pid          = (pid_t)0;
1064 int     queue_run_pipe         = -1;
1065 BOOL    queue_running          = FALSE;
1066 BOOL    queue_smtp             = FALSE;
1067 uschar *queue_smtp_domains     = NULL;
1068
1069 unsigned int random_seed       = 0;
1070 tree_node *ratelimiters_cmd    = NULL;
1071 tree_node *ratelimiters_conn   = NULL;
1072 tree_node *ratelimiters_mail   = NULL;
1073 uschar *raw_active_hostname    = NULL;
1074 uschar *raw_sender             = NULL;
1075 uschar **raw_recipients        = NULL;
1076 int     raw_recipients_count   = 0;
1077
1078 int     rcpt_count             = 0;
1079 int     rcpt_fail_count        = 0;
1080 int     rcpt_defer_count       = 0;
1081 gid_t   real_gid;
1082 uid_t   real_uid;
1083 BOOL    really_exim            = TRUE;
1084 BOOL    receive_call_bombout   = FALSE;
1085 int     receive_linecount      = 0;
1086 int     receive_messagecount   = 0;
1087 int     receive_timeout        = 0;
1088 int     received_count         = 0;
1089 uschar *received_for           = NULL;
1090
1091 /*  This is the default text for Received headers generated by Exim. The
1092 date  will be automatically added on the end. */
1093
1094 uschar *received_header_text   = US
1095      "Received: "
1096      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1097      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1098      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1099      "by $primary_hostname "
1100      "${if def:received_protocol {with $received_protocol}} "
1101      #ifdef SUPPORT_TLS
1102      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1103      #endif
1104      "(Exim $version_number)\n\t"
1105      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1106      "id $message_exim_id"
1107      "${if def:received_for {\n\tfor $received_for}}"
1108      "\0<---------------Space to patch received_header_text->";
1109
1110 int     received_headers_max   = 30;
1111 uschar *received_protocol      = NULL;
1112 int     received_time          = 0;
1113 uschar *recipient_data         = NULL;
1114 uschar *recipient_unqualified_hosts = NULL;
1115 uschar *recipient_verify_failure = NULL;
1116 int     recipients_count       = 0;
1117 BOOL    recipients_discarded   = FALSE;
1118 recipient_item  *recipients_list = NULL;
1119 int     recipients_list_max    = 0;
1120 int     recipients_max         = 0;
1121 BOOL    recipients_max_reject  = FALSE;
1122 const pcre *regex_AUTH         = NULL;
1123 const pcre *regex_check_dns_names = NULL;
1124 const pcre *regex_From         = NULL;
1125 const pcre *regex_IGNOREQUOTA  = NULL;
1126 const pcre *regex_PIPELINING   = NULL;
1127 const pcre *regex_SIZE         = NULL;
1128 const pcre *regex_ismsgid      = NULL;
1129 const pcre *regex_smtp_code    = NULL;
1130 uschar *regex_vars[REGEX_VARS];
1131 #ifdef WHITELIST_D_MACROS
1132 const pcre *regex_whitelisted_macro = NULL;
1133 #endif
1134 #ifdef WITH_CONTENT_SCAN
1135 uschar *regex_match_string     = NULL;
1136 #endif
1137 int     remote_delivery_count  = 0;
1138 int     remote_max_parallel    = 2;
1139 uschar *remote_sort_domains    = NULL;
1140 int     retry_data_expire      = 7*24*60*60;
1141 int     retry_interval_max     = 24*60*60;
1142 int     retry_maximum_timeout  = 0;        /* set from retry config */
1143 retry_config  *retries         = NULL;
1144 uschar *return_path            = NULL;
1145 BOOL    return_path_remove     = TRUE;
1146 int     rewrite_existflags     = 0;
1147 uschar *rfc1413_hosts          = US"@[]";
1148 int     rfc1413_query_timeout  = 0;
1149 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1150 uid_t   root_gid               = ROOT_GID;
1151 uid_t   root_uid               = ROOT_UID;
1152
1153 router_instance  *routers  = NULL;
1154 router_instance  router_defaults = {
1155     NULL,                      /* chain pointer */
1156     NULL,                      /* name */
1157     NULL,                      /* info */
1158     NULL,                      /* private options block pointer */
1159     NULL,                      /* driver name */
1160
1161     NULL,                      /* address_data */
1162 #ifdef EXPERIMENTAL_BRIGHTMAIL
1163     NULL,                      /* bmi_rule */
1164 #endif
1165     NULL,                      /* cannot_route_message */
1166     NULL,                      /* condition */
1167     NULL,                      /* current_directory */
1168     NULL,                      /* debug_string */
1169     NULL,                      /* domains */
1170     NULL,                      /* errors_to */
1171     NULL,                      /* expand_gid */
1172     NULL,                      /* expand_uid */
1173     NULL,                      /* expand_more */
1174     NULL,                      /* expand_unseen */
1175     NULL,                      /* extra_headers */
1176     NULL,                      /* fallback_hosts */
1177     NULL,                      /* home_directory */
1178     NULL,                      /* ignore_target_hosts */
1179     NULL,                      /* local_parts */
1180     NULL,                      /* pass_router_name */
1181     NULL,                      /* prefix */
1182     NULL,                      /* redirect_router_name */
1183     NULL,                      /* remove_headers */
1184     NULL,                      /* require_files */
1185     NULL,                      /* router_home_directory */
1186     US"freeze",                /* self */
1187     NULL,                      /* senders */
1188     NULL,                      /* suffix */
1189     NULL,                      /* translate_ip_address */
1190     NULL,                      /* transport_name */
1191
1192     TRUE,                      /* address_test */
1193 #ifdef EXPERIMENTAL_BRIGHTMAIL
1194     FALSE,                     /* bmi_deliver_alternate */
1195     FALSE,                     /* bmi_deliver_default */
1196     FALSE,                     /* bmi_dont_deliver */
1197 #endif
1198     TRUE,                      /* expn */
1199     FALSE,                     /* caseful_local_part */
1200     FALSE,                     /* check_local_user */
1201     FALSE,                     /* disable_logging */
1202     FALSE,                     /* fail_verify_recipient */
1203     FALSE,                     /* fail_verify_sender */
1204     FALSE,                     /* gid_set */
1205     FALSE,                     /* initgroups */
1206     TRUE_UNSET,                /* log_as_local */
1207     TRUE,                      /* more */
1208     FALSE,                     /* pass_on_timeout */
1209     FALSE,                     /* prefix_optional */
1210     TRUE,                      /* repeat_use */
1211     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1212     FALSE,                     /* same_domain_copy_routing */
1213     FALSE,                     /* self_rewrite */
1214     FALSE,                     /* suffix_optional */
1215     FALSE,                     /* verify_only */
1216     TRUE,                      /* verify_recipient */
1217     TRUE,                      /* verify_sender */
1218     FALSE,                     /* uid_set */
1219     FALSE,                     /* unseen */
1220     FALSE,                     /* dsn_lasthop */
1221
1222     self_freeze,               /* self_code */
1223     (uid_t)(-1),               /* uid */
1224     (gid_t)(-1),               /* gid */
1225
1226     NULL,                      /* fallback_hostlist */
1227     NULL,                      /* transport instance */
1228     NULL,                      /* pass_router */
1229     NULL,                      /* redirect_router */
1230
1231     { NULL, NULL },            /* dnssec_domains {require,request} */
1232 };
1233
1234 uschar *router_name            = NULL;
1235
1236 ip_address_item *running_interfaces = NULL;
1237 BOOL    running_in_test_harness = FALSE;
1238
1239 /* This is a weird one. The following string gets patched in the binary by the
1240 script that sets up a copy of Exim for running in the test harness. It seems
1241 that compilers are now clever, and share constant strings if they can.
1242 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1243 make use of the end of this string in order to save space. So the patching then
1244 wrecks this. We defeat this optimization by adding some additional characters
1245 onto the end of the string. */
1246
1247 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1248
1249 int     runrc                  = 0;
1250
1251 uschar *search_error_message   = NULL;
1252 BOOL    search_find_defer      = FALSE;
1253 uschar *self_hostname          = NULL;
1254 uschar *sender_address         = NULL;
1255 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1256 uschar *sender_address_data    = NULL;
1257 BOOL    sender_address_forced  = FALSE;
1258 uschar *sender_address_unrewritten = NULL;
1259 uschar *sender_data            = NULL;
1260 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1261 uschar *sender_fullhost        = NULL;
1262 BOOL    sender_helo_dnssec     = FALSE;
1263 uschar *sender_helo_name       = NULL;
1264 uschar **sender_host_aliases   = &no_aliases;
1265 uschar *sender_host_address    = NULL;
1266 uschar *sender_host_authenticated = NULL;
1267 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1268 BOOL    sender_host_dnssec     = FALSE;
1269 uschar *sender_host_name       = NULL;
1270 int     sender_host_port       = 0;
1271 BOOL    sender_host_notsocket  = FALSE;
1272 BOOL    sender_host_unknown    = FALSE;
1273 uschar *sender_ident           = NULL;
1274 BOOL    sender_local           = FALSE;
1275 BOOL    sender_name_forced     = FALSE;
1276 uschar *sender_rate            = NULL;
1277 uschar *sender_rate_limit      = NULL;
1278 uschar *sender_rate_period     = NULL;
1279 uschar *sender_rcvhost         = NULL;
1280 BOOL    sender_set_untrusted   = FALSE;
1281 uschar *sender_unqualified_hosts = NULL;
1282 uschar *sender_verify_failure = NULL;
1283 address_item *sender_verified_list  = NULL;
1284 address_item *sender_verified_failed = NULL;
1285 int     sender_verified_rc     = -1;
1286 BOOL    sender_verified_responded = FALSE;
1287 uschar *sending_ip_address     = NULL;
1288 int     sending_port           = -1;
1289 SIGNAL_BOOL sigalrm_seen       = FALSE;
1290 uschar **sighup_argv           = NULL;
1291 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1292 int     smtp_accept_count      = 0;
1293 BOOL    smtp_accept_keepalive  = TRUE;
1294 int     smtp_accept_max        = 20;
1295 int     smtp_accept_max_nonmail= 10;
1296 uschar *smtp_accept_max_nonmail_hosts = US"*";
1297 int     smtp_accept_max_per_connection = 1000;
1298 uschar *smtp_accept_max_per_host = NULL;
1299 int     smtp_accept_queue      = 0;
1300 int     smtp_accept_queue_per_connection = 10;
1301 int     smtp_accept_reserve    = 0;
1302 uschar *smtp_active_hostname   = NULL;
1303 BOOL    smtp_authenticated     = FALSE;
1304 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1305                              "Exim $version_number $tod_full"
1306                              "\0<---------------Space to patch smtp_banner->";
1307 BOOL    smtp_batched_input     = FALSE;
1308 BOOL    smtp_check_spool_space = TRUE;
1309 int     smtp_ch_index          = 0;
1310 uschar *smtp_cmd_argument      = NULL;
1311 uschar *smtp_cmd_buffer        = NULL;
1312 time_t  smtp_connection_start  = 0;
1313 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1314 int     smtp_connect_backlog   = 20;
1315 double  smtp_delay_mail        = 0.0;
1316 double  smtp_delay_rcpt        = 0.0;
1317 BOOL    smtp_enforce_sync      = TRUE;
1318 FILE   *smtp_in                = NULL;
1319 BOOL    smtp_input             = FALSE;
1320 int     smtp_load_reserve      = -1;
1321 int     smtp_mailcmd_count     = 0;
1322 FILE   *smtp_out               = NULL;
1323 uschar *smtp_etrn_command      = NULL;
1324 BOOL    smtp_etrn_serialize    = TRUE;
1325 int     smtp_max_synprot_errors= 3;
1326 int     smtp_max_unknown_commands = 3;
1327 uschar *smtp_notquit_reason    = NULL;
1328 uschar *smtp_ratelimit_hosts   = NULL;
1329 uschar *smtp_ratelimit_mail    = NULL;
1330 uschar *smtp_ratelimit_rcpt    = NULL;
1331 uschar *smtp_read_error        = US"";
1332 int     smtp_receive_timeout   = 5*60;
1333 uschar *smtp_receive_timeout_s = NULL;
1334 uschar *smtp_reserve_hosts     = NULL;
1335 BOOL    smtp_return_error_details = FALSE;
1336 int     smtp_rlm_base          = 0;
1337 double  smtp_rlm_factor        = 0.0;
1338 int     smtp_rlm_limit         = 0;
1339 int     smtp_rlm_threshold     = INT_MAX;
1340 int     smtp_rlr_base          = 0;
1341 double  smtp_rlr_factor        = 0.0;
1342 int     smtp_rlr_limit         = 0;
1343 int     smtp_rlr_threshold     = INT_MAX;
1344 unsigned smtp_peer_options     = 0;
1345 unsigned smtp_peer_options_wrap= 0;
1346 #ifdef SUPPORT_I18N
1347 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1348 #endif
1349
1350 #ifdef WITH_CONTENT_SCAN
1351 uschar *spamd_address          = US"127.0.0.1 783";
1352 uschar *spam_bar               = NULL;
1353 uschar *spam_report            = NULL;
1354 uschar *spam_action            = NULL;
1355 uschar *spam_score             = NULL;
1356 uschar *spam_score_int         = NULL;
1357 #endif
1358 #ifdef EXPERIMENTAL_SPF
1359 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1360 uschar *spf_header_comment     = NULL;
1361 uschar *spf_received           = NULL;
1362 uschar *spf_result             = NULL;
1363 uschar *spf_smtp_comment       = NULL;
1364 #endif
1365
1366 BOOL    split_spool_directory  = FALSE;
1367 uschar *spool_directory        = US SPOOL_DIRECTORY
1368                            "\0<--------------Space to patch spool_directory->";
1369 BOOL    spool_file_wireformat  = FALSE;
1370 BOOL    spool_wireformat       = FALSE;
1371 #ifdef EXPERIMENTAL_SRS
1372 uschar *srs_config             = NULL;
1373 uschar *srs_db_address         = NULL;
1374 uschar *srs_db_key             = NULL;
1375 int     srs_hashlength         = 6;
1376 int     srs_hashmin            = -1;
1377 int     srs_maxage             = 31;
1378 uschar *srs_orig_recipient     = NULL;
1379 uschar *srs_orig_sender        = NULL;
1380 uschar *srs_recipient          = NULL;
1381 uschar *srs_secrets            = NULL;
1382 uschar *srs_status             = NULL;
1383 BOOL    srs_usehash            = TRUE;
1384 BOOL    srs_usetimestamp       = TRUE;
1385 #endif
1386 BOOL    strict_acl_vars        = FALSE;
1387 int     string_datestamp_offset= -1;
1388 int     string_datestamp_length= 0;
1389 int     string_datestamp_type  = -1;
1390 BOOL    strip_excess_angle_brackets = FALSE;
1391 BOOL    strip_trailing_dot     = FALSE;
1392 uschar *submission_domain      = NULL;
1393 BOOL    submission_mode        = FALSE;
1394 uschar *submission_name        = NULL;
1395 BOOL    suppress_local_fixups  = FALSE;
1396 BOOL    suppress_local_fixups_default = FALSE;
1397 BOOL    synchronous_delivery   = FALSE;
1398 BOOL    syslog_duplication     = TRUE;
1399 int     syslog_facility        = LOG_MAIL;
1400 BOOL    syslog_pid             = TRUE;
1401 uschar *syslog_processname     = US"exim";
1402 BOOL    syslog_timestamp       = TRUE;
1403 uschar *system_filter          = NULL;
1404
1405 uschar *system_filter_directory_transport = NULL;
1406 uschar *system_filter_file_transport = NULL;
1407 uschar *system_filter_pipe_transport = NULL;
1408 uschar *system_filter_reply_transport = NULL;
1409
1410 gid_t   system_filter_gid      = 0;
1411 BOOL    system_filter_gid_set  = FALSE;
1412 uid_t   system_filter_uid      = (uid_t)-1;
1413 BOOL    system_filter_uid_set  = FALSE;
1414 BOOL    system_filtering       = FALSE;
1415
1416 BOOL    tcp_fastopen_ok        = FALSE;
1417 BOOL    tcp_nodelay            = TRUE;
1418 #ifdef USE_TCP_WRAPPERS
1419 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1420 #endif
1421 int     test_harness_load_avg  = 0;
1422 int     thismessage_size_limit = 0;
1423 int     timeout_frozen_after   = 0;
1424 BOOL    timestamps_utc         = FALSE;
1425
1426 transport_instance  *transports = NULL;
1427
1428 transport_instance  transport_defaults = {
1429     NULL,                     /* chain pointer */
1430     NULL,                     /* name */
1431     NULL,                     /* info */
1432     NULL,                     /* private options block pointer */
1433     NULL,                     /* driver name */
1434     NULL,                     /* setup entry point */
1435     1,                        /* batch_max */
1436     NULL,                     /* batch_id */
1437     NULL,                     /* home_dir */
1438     NULL,                     /* current_dir */
1439     NULL,                     /* expand-multi-domain */
1440     TRUE,                     /* multi-domain */
1441     FALSE,                    /* overrides_hosts */
1442     100,                      /* max_addresses */
1443     500,                      /* connection_max_messages */
1444     FALSE,                    /* deliver_as_creator */
1445     FALSE,                    /* disable_logging */
1446     FALSE,                    /* initgroups */
1447     FALSE,                    /* uid_set */
1448     FALSE,                    /* gid_set */
1449     (uid_t)(-1),              /* uid */
1450     (gid_t)(-1),              /* gid */
1451     NULL,                     /* expand_uid */
1452     NULL,                     /* expand_gid */
1453     NULL,                     /* warn_message */
1454     NULL,                     /* shadow */
1455     NULL,                     /* shadow_condition */
1456     NULL,                     /* filter_command */
1457     NULL,                     /* add_headers */
1458     NULL,                     /* remove_headers */
1459     NULL,                     /* return_path */
1460     NULL,                     /* debug_string */
1461     NULL,                     /* max_parallel */
1462     NULL,                     /* message_size_limit */
1463     NULL,                     /* headers_rewrite */
1464     NULL,                     /* rewrite_rules */
1465     0,                        /* rewrite_existflags */
1466     300,                      /* filter_timeout */
1467     FALSE,                    /* body_only */
1468     FALSE,                    /* delivery_date_add */
1469     FALSE,                    /* envelope_to_add */
1470     FALSE,                    /* headers_only */
1471     FALSE,                    /* rcpt_include_affixes */
1472     FALSE,                    /* return_path_add */
1473     FALSE,                    /* return_output */
1474     FALSE,                    /* return_fail_output */
1475     FALSE,                    /* log_output */
1476     FALSE,                    /* log_fail_output */
1477     FALSE,                    /* log_defer_output */
1478     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1479                                  1 nor 0 so can detect unset */
1480 #ifndef DISABLE_EVENT
1481    ,NULL                      /* event_action */
1482 #endif
1483 };
1484
1485 int     transport_count;
1486 uschar *transport_name          = NULL;
1487 int     transport_newlines;
1488 const uschar **transport_filter_argv  = NULL;
1489 int     transport_filter_timeout;
1490 BOOL    transport_filter_timed_out = FALSE;
1491 int     transport_write_timeout= 0;
1492
1493 tree_node  *tree_dns_fails     = NULL;
1494 tree_node  *tree_duplicates    = NULL;
1495 tree_node  *tree_nonrecipients = NULL;
1496 tree_node  *tree_unusable      = NULL;
1497
1498 BOOL    trusted_caller         = FALSE;
1499 BOOL    trusted_config         = TRUE;
1500 gid_t  *trusted_groups         = NULL;
1501 uid_t  *trusted_users          = NULL;
1502 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1503
1504 uschar *unknown_login          = NULL;
1505 uschar *unknown_username       = NULL;
1506 uschar *untrusted_set_sender   = NULL;
1507
1508 /*  A regex for matching a "From_" line in an incoming message, in the form
1509
1510     From ph10 Fri Jan  5 12:35 GMT 1996
1511
1512 which  the "mail" commands send to the MTA (undocumented, of course), or in
1513 the  form
1514
1515     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1516
1517 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1518 Because  of variations in time formats, just match up to the minutes. That
1519 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1520 so  just require one digit for hours and minutes. The weekday is also absent
1521 in  some forms. */
1522
1523 uschar *uucp_from_pattern      = US
1524    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1525    "(?:"                                          /* Non-extracting bracket */
1526    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1527    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1528    ")"                                            /* End alternation */
1529    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1530
1531 uschar *uucp_from_sender       = US"$1";
1532
1533 uschar *verify_mode            = NULL;
1534 uschar *version_copyright      =
1535  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1536    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1537 uschar *version_date           = US"?";
1538 uschar *version_cnumber        = US"????";
1539 uschar *version_string         = US"?";
1540
1541 uschar *warn_message_file      = NULL;
1542 int     warning_count          = 0;
1543 uschar *warnmsg_delay          = NULL;
1544 uschar *warnmsg_recipients     = NULL;
1545 BOOL    write_rejectlog        = TRUE;
1546
1547
1548 /*  End of globals.c */