0794e03f93354851debaad175d1240af9dc87db1
[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.5 2004/11/05 16:53:28 ph10 Exp $ */
2
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
6
7 /* Copyright (c) University of Cambridge 1995 - 2004 */
8 /* See the file NOTICE for conditions of use and distribution. */
9
10 /* All the global variables are defined together in this one module, so
11 that they are easy to find. */
12
13 #include "exim.h"
14
15
16 /* The OSF1 linker puts out a worrying warning if any sections contain no
17 executable code. It says
18
19 Warning: Linking some objects which contain exception information sections
20 and some which do not. This may cause fatal runtime exception handling
21 problems.
22
23 As this may cause people to worry needlessly, include a dummy function here
24 to stop the message from appearing. Make it reference itself to stop picky
25 compilers complaining that it is unused, and put in a dummy argument to stop
26 even pickier compilers complaining about infinite loops. */
27
28 static void dummy(int x) { dummy(x-1); }
29
30
31 /* Generic options for auths, all of which live inside auth_instance
32 data blocks and hence have the opt_public flag set. */
33
34 optionlist optionlist_auths[] = {
35 { "driver", opt_stringptr | opt_public,
36 (void *)(offsetof(auth_instance, driver_name)) },
37 { "public_name", opt_stringptr | opt_public,
38 (void *)(offsetof(auth_instance, public_name)) },
39 { "server_advertise_condition", opt_stringptr | opt_public,
40 (void *)(offsetof(auth_instance, advertise_condition))},
41 { "server_debug_print", opt_stringptr | opt_public,
42 (void *)(offsetof(auth_instance, server_debug_string)) },
43 { "server_mail_auth_condition", opt_stringptr | opt_public,
44 (void *)(offsetof(auth_instance, mail_auth_condition)) },
45 { "server_set_id", opt_stringptr | opt_public,
46 (void *)(offsetof(auth_instance, set_id)) }
47 };
48
49 int optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
50
51 /* An empty host aliases list. */
52
53 uschar *no_aliases = NULL;
54
55
56 /* For comments on these variables, see globals.h. I'm too idle to
57 duplicate them here... */
58
59 #ifdef EXIM_PERL
60 uschar *opt_perl_startup = NULL;
61 BOOL opt_perl_at_start = FALSE;
62 BOOL opt_perl_started = FALSE;
63 #endif
64
65 #ifdef LOOKUP_IBASE
66 uschar *ibase_servers = NULL;
67 #endif
68
69 #ifdef LOOKUP_LDAP
70 uschar *eldap_default_servers = NULL;
71 int eldap_version = -1;
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 SUPPORT_MOVE_FROZEN_MESSAGES
87 BOOL move_frozen_messages = FALSE;
88 #endif
89
90 /* These variables are outside the #ifdef because it keeps the code less
91 cluttered in several places (e.g. during logging) if we can always refer to
92 them. Also, the tls_ variables are now always visible. */
93
94 BOOL tls_active = -1;
95 BOOL tls_certificate_verified = FALSE;
96 uschar *tls_cipher = NULL;
97 BOOL tls_on_connect = FALSE;
98 uschar *tls_on_connect_ports = NULL;
99 uschar *tls_peerdn = NULL;
100
101 #ifdef SUPPORT_TLS
102 const pcre *regex_STARTTLS = NULL;
103 uschar *tls_advertise_hosts = NULL; /* This is deliberate */
104 uschar *tls_certificate = NULL;
105 uschar *tls_crl = NULL;
106 uschar *tls_dhparam = NULL;
107 BOOL tls_offered = FALSE;
108 uschar *tls_privatekey = NULL;
109 BOOL tls_remember_esmtp = FALSE;
110 uschar *tls_require_ciphers = NULL;
111 uschar *tls_try_verify_hosts = NULL;
112 uschar *tls_verify_certificates= NULL;
113 uschar *tls_verify_hosts = NULL;
114 #endif
115
116
117 /* Input-reading functions for messages, so we can use special ones for
118 incoming TCP/IP. The defaults use stdin. We never need these for any
119 stand-alone tests. */
120
121 #ifndef STAND_ALONE
122 int (*receive_getc)(void) = stdin_getc;
123 int (*receive_ungetc)(int) = stdin_ungetc;
124 int (*receive_feof)(void) = stdin_feof;
125 int (*receive_ferror)(void) = stdin_ferror;
126 #endif
127
128
129 /* List of per-address expansion variables for clearing and saving/restoring
130 when verifying one address while routing/verifying another. We have to have
131 the size explicit, because it is referenced from more than one module. */
132
133 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
134 &deliver_address_data,
135 &deliver_domain,
136 &deliver_domain_data,
137 &deliver_domain_orig,
138 &deliver_domain_parent,
139 &deliver_localpart,
140 &deliver_localpart_data,
141 &deliver_localpart_orig,
142 &deliver_localpart_parent,
143 &deliver_localpart_prefix,
144 &deliver_localpart_suffix,
145 (uschar **)(&deliver_recipients),
146 &deliver_host,
147 &deliver_home,
148 &address_file,
149 &address_pipe,
150 &self_hostname,
151 NULL };
152
153 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
154
155 /* General global variables */
156
157 tree_node *acl_anchor = NULL;
158 uschar *acl_not_smtp = NULL;
159 uschar *acl_smtp_auth = NULL;
160 uschar *acl_smtp_connect = NULL;
161 uschar *acl_smtp_data = NULL;
162 uschar *acl_smtp_etrn = NULL;
163 uschar *acl_smtp_expn = NULL;
164 uschar *acl_smtp_helo = NULL;
165 uschar *acl_smtp_mail = NULL;
166 uschar *acl_smtp_mailauth = NULL;
167 uschar *acl_smtp_predata = NULL;
168 uschar *acl_smtp_quit = NULL;
169 uschar *acl_smtp_rcpt = NULL;
170 uschar *acl_smtp_starttls = NULL;
171 uschar *acl_smtp_vrfy = NULL;
172 BOOL acl_temp_details = FALSE;
173 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
174 uschar *acl_verify_message = NULL;
175 header_line *acl_warn_headers = NULL;
176 string_item *acl_warn_logged = NULL;
177
178 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
179 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
180
181 uschar *acl_wherenames[] = { US"RCPT",
182 US"MAIL",
183 US"PREDATA",
184 US"DATA",
185 US"non-SMTP",
186 US"AUTH",
187 US"connection",
188 US"ETRN",
189 US"EXPN",
190 US"EHLO or HELO",
191 US"MAILAUTH",
192 US"QUIT",
193 US"STARTTLS",
194 US"VRFY"
195 };
196
197 int acl_wherecodes[] = { 550, /* RCPT */
198 550, /* MAIL */
199 550, /* PREDATA */
200 550, /* DATA */
201 0, /* not SMTP; not relevant */
202 503, /* AUTH */
203 550, /* connect */
204 458, /* ETRN */
205 550, /* EXPN */
206 550, /* HELO/EHLO */
207 0, /* MAILAUTH; not relevant */
208 0, /* QUIT; not relevant */
209 550, /* STARTTLS */
210 252 /* VRFY */
211 };
212
213 BOOL active_local_from_check = FALSE;
214 BOOL active_local_sender_retain = FALSE;
215 BOOL accept_8bitmime = FALSE;
216 address_item *addr_duplicate = NULL;
217
218 address_item address_defaults = {
219 NULL, /* next */
220 NULL, /* parent */
221 NULL, /* first */
222 NULL, /* dupof */
223 NULL, /* start_router */
224 NULL, /* router */
225 NULL, /* transport */
226 NULL, /* host_list */
227 NULL, /* host_used */
228 NULL, /* fallback_hosts */
229 NULL, /* reply */
230 NULL, /* retries */
231 NULL, /* address */
232 NULL, /* unique */
233 NULL, /* cc_local_part */
234 NULL, /* lc_local_part */
235 NULL, /* local_part */
236 NULL, /* prefix */
237 NULL, /* suffix */
238 NULL, /* domain */
239 NULL, /* address_retry_key */
240 NULL, /* domain_retry_key */
241 NULL, /* current_dir */
242 NULL, /* home_dir */
243 NULL, /* message */
244 NULL, /* user_message */
245 NULL, /* onetime_parent */
246 NULL, /* pipe_expandn */
247 NULL, /* return_filename */
248 NULL, /* self_hostname */
249 NULL, /* shadow_message */
250 #ifdef SUPPORT_TLS
251 NULL, /* cipher */
252 NULL, /* peerdn */
253 #endif
254 (uid_t)(-1), /* uid */
255 (gid_t)(-1), /* gid */
256 0, /* flags */
257 { 0 }, /* domain_cache - any larger array should be zeroed */
258 { 0 }, /* localpart_cache - ditto */
259 -1, /* mode */
260 0, /* more_errno */
261 ERRNO_UNKNOWNERROR, /* basic_errno */
262 0, /* child_count */
263 -1, /* return_file */
264 SPECIAL_NONE, /* special_action */
265 DEFER, /* transport_return */
266 { /* fields that are propagated to children */
267 NULL, /* address_data */
268 NULL, /* domain_data */
269 NULL, /* localpart_data */
270 NULL, /* errors_address */
271 NULL, /* extra_headers */
272 NULL, /* remove_headers */
273 }
274 };
275
276 uschar *address_file = NULL;
277 uschar *address_pipe = NULL;
278 BOOL address_test_mode = FALSE;
279 tree_node *addresslist_anchor = NULL;
280 int addresslist_count = 0;
281 gid_t *admin_groups = NULL;
282 BOOL admin_user = FALSE;
283 BOOL allow_domain_literals = FALSE;
284 BOOL allow_mx_to_ip = FALSE;
285 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
286 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
287 BOOL allow_utf8_domains = FALSE;
288 uschar *authenticated_id = NULL;
289 uschar *authenticated_sender = NULL;
290 BOOL authentication_failed = FALSE;
291 auth_instance *auths = NULL;
292 uschar *auth_advertise_hosts = US"*";
293 auth_instance auth_defaults = {
294 NULL, /* chain pointer */
295 NULL, /* name */
296 NULL, /* info */
297 NULL, /* private options block pointer */
298 NULL, /* driver_name */
299 NULL, /* advertise_condition */
300 NULL, /* public_name */
301 NULL, /* set_id */
302 NULL, /* server_mail_auth_condition */
303 NULL, /* server_debug_string */
304 FALSE, /* client */
305 FALSE, /* server */
306 FALSE /* advertised */
307 };
308
309 uschar *auth_defer_msg = US"reason not recorded";
310 uschar *auth_defer_user_msg = US"";
311 int auto_thaw = 0;
312
313 BOOL background_daemon = TRUE;
314 uschar *base62_chars=
315 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
316 uschar *bi_command = NULL;
317 uschar *big_buffer = NULL;
318 int big_buffer_size = BIG_BUFFER_SIZE;
319 int body_linecount = 0;
320 int body_zerocount = 0;
321 uschar *bounce_message_file = NULL;
322 uschar *bounce_message_text = NULL;
323 uschar *bounce_recipient = NULL;
324 BOOL bounce_return_body = TRUE;
325 BOOL bounce_return_message = TRUE;
326 int bounce_return_size_limit = 100*1024;
327 uschar *bounce_sender_authentication = NULL;
328 int bsmtp_transaction_linecount = 0;
329
330 int callout_cache_domain_positive_expire = 7*24*60*60;
331 int callout_cache_domain_negative_expire = 3*60*60;
332 int callout_cache_positive_expire = 24*60*60;
333 int callout_cache_negative_expire = 2*60*60;
334 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
335 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
336 int check_log_inodes = 0;
337 int check_log_space = 0;
338 int check_spool_inodes = 0;
339 int check_spool_space = 0;
340 int clmacro_count = 0;
341 uschar *clmacros[MAX_CLMACROS];
342 BOOL config_changed = FALSE;
343 FILE *config_file = NULL;
344 uschar *config_filename = NULL;
345 int config_lineno = 0;
346 #ifdef CONFIGURE_GROUP
347 gid_t config_gid = CONFIGURE_GROUP;
348 #endif
349 uschar *config_main_filelist = US CONFIGURE_FILE
350 "\0<-----------Space to patch configure_filename->";
351 uschar *config_main_filename = NULL;
352
353 #ifdef CONFIGURE_OWNER
354 uid_t config_uid = CONFIGURE_OWNER;
355 #endif
356
357 int connection_max_messages= -1;
358 uschar *continue_hostname = NULL;
359 uschar *continue_host_address = NULL;
360 BOOL continue_more = FALSE;
361 int continue_sequence = 1;
362 uschar *continue_transport = NULL;
363
364 BOOL daemon_listen = FALSE;
365 uschar *daemon_smtp_port = US"smtp";
366 int debug_fd = -1;
367 FILE *debug_file = NULL;
368 bit_table debug_options[] = {
369 { US"acl", D_acl },
370 { US"all", D_all },
371 { US"auth", D_auth },
372 { US"deliver", D_deliver },
373 { US"dns", D_dns },
374 { US"dnsbl", D_dnsbl },
375 { US"exec", D_exec },
376 { US"expand", D_expand },
377 { US"filter", D_filter },
378 { US"hints_lookup", D_hints_lookup },
379 { US"host_lookup", D_host_lookup },
380 { US"ident", D_ident },
381 { US"interface", D_interface },
382 { US"lists", D_lists },
383 { US"load", D_load },
384 { US"local_scan", D_local_scan },
385 { US"lookup", D_lookup },
386 { US"memory", D_memory },
387 { US"pid", D_pid },
388 { US"process_info", D_process_info },
389 { US"queue_run", D_queue_run },
390 { US"receive", D_receive },
391 { US"resolver", D_resolver },
392 { US"retry", D_retry },
393 { US"rewrite", D_rewrite },
394 { US"route", D_route },
395 { US"timestamp", D_timestamp },
396 { US"tls", D_tls },
397 { US"transport", D_transport },
398 { US"uid", D_uid },
399 { US"verify", D_verify }
400 };
401 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
402 unsigned int debug_selector = 0;
403 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
404 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
405 BOOL delivery_date_remove = TRUE;
406 uschar *deliver_address_data = NULL;
407 int deliver_datafile = -1;
408 uschar *deliver_domain = NULL;
409 uschar *deliver_domain_data = NULL;
410 uschar *deliver_domain_orig = NULL;
411 uschar *deliver_domain_parent = NULL;
412 BOOL deliver_drop_privilege = FALSE;
413 BOOL deliver_firsttime = FALSE;
414 BOOL deliver_force = FALSE;
415 BOOL deliver_freeze = FALSE;
416 int deliver_frozen_at = 0;
417 uschar *deliver_home = NULL;
418 uschar *deliver_host = NULL;
419 uschar *deliver_host_address = NULL;
420 uschar *deliver_in_buffer = NULL;
421 ino_t deliver_inode = 0;
422 uschar *deliver_localpart = NULL;
423 uschar *deliver_localpart_data = NULL;
424 uschar *deliver_localpart_orig = NULL;
425 uschar *deliver_localpart_parent = NULL;
426 uschar *deliver_localpart_prefix = NULL;
427 uschar *deliver_localpart_suffix = NULL;
428 BOOL deliver_force_thaw = FALSE;
429 BOOL deliver_manual_thaw = FALSE;
430 uschar *deliver_out_buffer = NULL;
431 int deliver_queue_load_max = -1;
432 address_item *deliver_recipients = NULL;
433 uschar *deliver_selectstring = NULL;
434 BOOL deliver_selectstring_regex = FALSE;
435 uschar *deliver_selectstring_sender = NULL;
436 BOOL deliver_selectstring_sender_regex = FALSE;
437 BOOL disable_logging = FALSE;
438
439 uschar *dns_again_means_nonexist = NULL;
440 uschar *dns_ipv4_lookup = NULL;
441 int dns_retrans = 0;
442 int dns_retry = 0;
443 uschar *dnslist_domain = NULL;
444 uschar *dnslist_text = NULL;
445 uschar *dnslist_value = NULL;
446 tree_node *domainlist_anchor = NULL;
447 int domainlist_count = 0;
448 BOOL dont_deliver = FALSE;
449 BOOL dot_ends = TRUE;
450 BOOL drop_cr = FALSE; /* No longer used */
451
452 BOOL enable_dollar_recipients = FALSE;
453 BOOL envelope_to_remove = TRUE;
454 int errno_quota = ERRNO_QUOTA;
455 uschar *errors_copy = NULL;
456 int error_handling = ERRORS_SENDER;
457 uschar *errors_reply_to = NULL;
458 int errors_sender_rc = EXIT_FAILURE;
459
460 gid_t exim_gid = EXIM_GID;
461 BOOL exim_gid_set = TRUE; /* This gid is always set */
462 uschar *exim_path = US BIN_DIRECTORY "/exim"
463 "\0<---------------Space to patch exim_path->";
464 uid_t exim_uid = EXIM_UID;
465 BOOL exim_uid_set = TRUE; /* This uid is always set */
466 int expand_forbid = 0;
467 int expand_nlength[EXPAND_MAXN+1];
468 int expand_nmax = -1;
469 uschar *expand_nstring[EXPAND_MAXN+1];
470 BOOL expand_string_forcedfail = FALSE;
471 uschar *expand_string_message;
472 BOOL extract_addresses_remove_arguments = TRUE;
473 uschar *extra_local_interfaces = NULL;
474
475 int filter_n[FILTER_VARIABLE_COUNT];
476 BOOL filter_running = FALSE;
477 int filter_sn[FILTER_VARIABLE_COUNT];
478 uschar *filter_test = NULL;
479 uschar *filter_thisaddress = NULL;
480 int finduser_retries = 0;
481 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
482 uschar *freeze_tell = NULL;
483 uschar *fudged_queue_times = US"";
484
485 uschar *gecos_name = NULL;
486 uschar *gecos_pattern = NULL;
487 rewrite_rule *global_rewrite_rules = NULL;
488
489 uschar *headers_charset = US HEADERS_CHARSET;
490 int header_insert_maxlen = 64 * 1024;
491 header_line *header_last = NULL;
492 header_line *header_list = NULL;
493 int header_maxsize = HEADER_MAXSIZE;
494 int header_line_maxsize = 0;
495
496 header_name header_names[] = {
497 { US"bcc", 3, TRUE, htype_bcc },
498 { US"cc", 2, TRUE, htype_cc },
499 { US"date", 4, TRUE, htype_date },
500 { US"delivery-date", 13, FALSE, htype_delivery_date },
501 { US"envelope-to", 11, FALSE, htype_envelope_to },
502 { US"from", 4, TRUE, htype_from },
503 { US"message-id", 10, TRUE, htype_id },
504 { US"received", 8, FALSE, htype_received },
505 { US"reply-to", 8, FALSE, htype_reply_to },
506 { US"return-path", 11, FALSE, htype_return_path },
507 { US"sender", 6, TRUE, htype_sender },
508 { US"subject", 7, FALSE, htype_subject },
509 { US"to", 2, TRUE, htype_to }
510 };
511
512 int header_names_size = sizeof(header_names)/sizeof(header_name);
513
514 BOOL header_rewritten = FALSE;
515 uschar *helo_accept_junk_hosts = NULL;
516 uschar *helo_allow_chars = US"";
517 uschar *helo_lookup_domains = US"@ : @[]";
518 uschar *helo_try_verify_hosts = NULL;
519 BOOL helo_verified = FALSE;
520 uschar *helo_verify_hosts = NULL;
521 uschar *hex_digits = US"0123456789abcdef";
522 uschar *hold_domains = NULL;
523 BOOL host_checking = FALSE;
524 BOOL host_checking_callout = FALSE;
525 uschar *host_data = NULL;
526 BOOL host_find_failed_syntax= FALSE;
527 uschar *host_lookup = NULL;
528 BOOL host_lookup_failed = FALSE;
529 uschar *host_lookup_order = US"bydns:byaddr";
530 uschar *host_lookup_msg = US"";
531 int host_number = 0;
532 uschar *host_number_string = NULL;
533 uschar *host_reject_connection = NULL;
534 tree_node *hostlist_anchor = NULL;
535 int hostlist_count = 0;
536 uschar *hosts_treat_as_local = NULL;
537 uschar *hosts_connection_nolog = NULL;
538
539 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
540 BOOL ignore_fromline_local = FALSE;
541 uschar *ignore_fromline_hosts = NULL;
542 uschar *interface_address = NULL;
543 int interface_port = -1;
544 BOOL is_inetd = FALSE;
545
546 int journal_fd = -1;
547
548 int keep_malformed = 4*24*60*60; /* 4 days */
549
550 uschar *eldap_dn = NULL;
551 int load_average = -2;
552 BOOL local_error_message = FALSE;
553 BOOL local_from_check = TRUE;
554 uschar *local_from_prefix = NULL;
555 uschar *local_from_suffix = NULL;
556
557 #if HAVE_IPV6
558 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
559 #else
560 uschar *local_interfaces = US"0.0.0.0";
561 #endif
562
563 uschar *local_scan_data = NULL;
564 int local_scan_timeout = 5*60;
565 BOOL local_sender_retain = FALSE;
566 gid_t local_user_gid = (gid_t)(-1);
567 uid_t local_user_uid = (uid_t)(-1);
568
569 tree_node *localpartlist_anchor= NULL;
570 int localpartlist_count = 0;
571 uschar *log_buffer = NULL;
572 unsigned int log_extra_selector = LX_default;
573 uschar *log_file_path = US LOG_FILE_PATH
574 "\0<--------------Space to patch log_file_path->";
575
576 /* Those log options with L_xxx identifiers have values less than 0x800000 and
577 are the ones that get put into log_write_selector. They can be used in calls to
578 log_write() to test for the bit. The options with LX_xxx identifiers have
579 values greater than 0x80000000 and are put int log_extra_selector (without the
580 top bit). They are never used in calls to log_write(), but are tested
581 independently. This separation became necessary when the number of log
582 selectors was getting close to filling a 32-bit word. */
583
584 bit_table log_options[] = {
585 { US"address_rewrite", L_address_rewrite },
586 { US"all", L_all },
587 { US"all_parents", L_all_parents },
588 { US"arguments", LX_arguments },
589 { US"connection_reject", L_connection_reject },
590 { US"delay_delivery", L_delay_delivery },
591 { US"deliver_time", LX_deliver_time },
592 { US"delivery_size", LX_delivery_size },
593 { US"dnslist_defer", L_dnslist_defer },
594 { US"etrn", L_etrn },
595 { US"host_lookup_failed", L_host_lookup_failed },
596 { US"ident_timeout", LX_ident_timeout },
597 { US"incoming_interface", LX_incoming_interface },
598 { US"incoming_port", LX_incoming_port },
599 { US"lost_incoming_connection", L_lost_incoming_connection },
600 { US"outgoing_port", LX_outgoing_port },
601 { US"queue_run", L_queue_run },
602 { US"queue_time", LX_queue_time },
603 { US"received_recipients", LX_received_recipients },
604 { US"received_sender", LX_received_sender },
605 { US"rejected_header", LX_rejected_header },
606 { US"rejected_headers", LX_rejected_header },
607 { US"retry_defer", L_retry_defer },
608 { US"return_path_on_delivery", LX_return_path_on_delivery },
609 { US"sender_on_delivery", LX_sender_on_delivery },
610 { US"size_reject", L_size_reject },
611 { US"skip_delivery", L_skip_delivery },
612 { US"smtp_confirmation", LX_smtp_confirmation },
613 { US"smtp_connection", L_smtp_connection },
614 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
615 { US"smtp_protocol_error", L_smtp_protocol_error },
616 { US"smtp_syntax_error", L_smtp_syntax_error },
617 { US"subject", LX_subject },
618 { US"tls_certificate_verified", LX_tls_certificate_verified },
619 { US"tls_cipher", LX_tls_cipher },
620 { US"tls_peerdn", LX_tls_peerdn }
621 };
622
623 int log_options_count = sizeof(log_options)/sizeof(bit_table);
624 unsigned int log_write_selector= L_default;
625 uschar *log_selector_string = NULL;
626 FILE *log_stderr = NULL;
627 BOOL log_testing_mode = FALSE;
628 BOOL log_timezone = FALSE;
629 uschar *login_sender_address = NULL;
630 int lookup_open_max = 25;
631 uschar *lookup_value = NULL;
632
633 macro_item *macros = NULL;
634 uschar *mailstore_basename = NULL;
635 int max_username_length = 0;
636 int message_age = 0;
637 uschar *message_body = NULL;
638 uschar *message_body_end = NULL;
639 int message_body_size = 0;
640 int message_body_visible = 500;
641 int message_ended = END_NOTSTARTED;
642 uschar *message_headers = NULL;
643 uschar *message_id;
644 uschar *message_id_domain = NULL;
645 uschar *message_id_text = NULL;
646 struct timeval message_id_tv = { 0, 0 };
647 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
648 uschar *message_id_external;
649 int message_linecount = 0;
650 BOOL message_logs = TRUE;
651 int message_size = 0;
652 uschar *message_size_limit = US"50M";
653 uschar message_subdir[2] = { 0, 0 };
654 uschar *message_reference = NULL;
655 BOOL mua_wrapper = FALSE;
656
657 uid_t *never_users = NULL;
658 BOOL no_multiline_responses = FALSE;
659
660 uid_t original_euid;
661 gid_t originator_gid;
662 uschar *originator_login = NULL;
663 uschar *originator_name = NULL;
664 uid_t originator_uid;
665 uschar *override_local_interfaces = NULL;
666 uschar *override_pid_file_path = NULL;
667
668 BOOL parse_allow_group = FALSE;
669 BOOL parse_found_group = FALSE;
670 uschar *percent_hack_domains = NULL;
671 uschar *pid_file_path = US PID_FILE_PATH
672 "\0<--------------Space to patch pid_file_path->";
673 uschar *pipelining_advertise_hosts = US"*";
674 BOOL preserve_message_logs = FALSE;
675 uschar *primary_hostname = NULL;
676 BOOL print_topbitchars = FALSE;
677 uschar process_info[PROCESS_INFO_SIZE];
678 uschar *process_log_path = NULL;
679 BOOL prod_requires_admin = TRUE;
680
681 uschar *qualify_domain_recipient = NULL;
682 uschar *qualify_domain_sender = NULL;
683 BOOL queue_2stage = FALSE;
684 uschar *queue_domains = NULL;
685 int queue_interval = -1;
686 BOOL queue_list_requires_admin = TRUE;
687 BOOL queue_only = FALSE;
688 uschar *queue_only_file = NULL;
689 int queue_only_load = -1;
690 BOOL queue_only_override = TRUE;
691 BOOL queue_only_policy = FALSE;
692 BOOL queue_run_first_delivery = FALSE;
693 BOOL queue_run_force = FALSE;
694 BOOL queue_run_in_order = FALSE;
695 BOOL queue_run_local = FALSE;
696 int queue_run_max = 5;
697 pid_t queue_run_pid = (pid_t)0;
698 int queue_run_pipe = -1;
699 BOOL queue_running = FALSE;
700 BOOL queue_smtp = FALSE;
701 uschar *queue_smtp_domains = NULL;
702
703 unsigned int random_seed = 0;
704 uschar *raw_active_hostname = NULL;
705 uschar *raw_sender = NULL;
706 uschar **raw_recipients = NULL;
707 int raw_recipients_count = 0;
708
709 int rcpt_count = 0;
710 int rcpt_fail_count = 0;
711 int rcpt_defer_count = 0;
712 gid_t real_gid;
713 uid_t real_uid;
714 BOOL really_exim = TRUE;
715 BOOL receive_call_bombout = FALSE;
716 int receive_linecount = 0;
717 int receive_messagecount = 0;
718 int receive_timeout = 0;
719 int received_count = 0;
720 uschar *received_for = NULL;
721
722 /* This is the default text for Received headers generated by Exim. The
723 date will be automatically added on the end. */
724
725 uschar *received_header_text = US
726 "Received: "
727 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
728 "{${if def:sender_ident {from $sender_ident }}"
729 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
730 "by $primary_hostname "
731 "${if def:received_protocol {with $received_protocol}} "
732 #ifdef SUPPORT_TLS
733 "${if def:tls_cipher {($tls_cipher)\n\t}}"
734 #endif
735 "(Exim $version_number)\n\t"
736 "id $message_id"
737 "${if def:received_for {\n\tfor $received_for}}"
738 "\0<---------------Space to patch received_header_text->";
739
740 int received_headers_max = 30;
741 uschar *received_protocol = NULL;
742 int received_time = 0;
743 uschar *recipient_data = NULL;
744 uschar *recipient_unqualified_hosts = NULL;
745 uschar *recipient_verify_failure = NULL;
746 int recipients_count = 0;
747 BOOL recipients_discarded = FALSE;
748 recipient_item *recipients_list = NULL;
749 int recipients_list_max = 0;
750 int recipients_max = 0;
751 BOOL recipients_max_reject = FALSE;
752 const pcre *regex_AUTH = NULL;
753 const pcre *regex_check_dns_names = NULL;
754 const pcre *regex_From = NULL;
755 const pcre *regex_PIPELINING = NULL;
756 const pcre *regex_SIZE = NULL;
757 const pcre *regex_ismsgid = NULL;
758 int remote_delivery_count = 0;
759 int remote_max_parallel = 2;
760 uschar *remote_sort_domains = NULL;
761 int retry_data_expire = 7*24*60*60;
762 int retry_interval_max = 24*60*60;
763 int retry_maximum_timeout = 0; /* set from retry config */
764 retry_config *retries = NULL;
765 uschar *return_path = NULL;
766 BOOL return_path_remove = TRUE;
767 int rewrite_existflags = 0;
768 uschar *rfc1413_hosts = US"*";
769 int rfc1413_query_timeout = 30;
770 /* BOOL rfc821_domains = FALSE; <<< on the way out */
771 uid_t root_uid = ROOT_UID;
772
773 router_instance *routers = NULL;
774 router_instance router_defaults = {
775 NULL, /* chain pointer */
776 NULL, /* name */
777 NULL, /* info */
778 NULL, /* private options block pointer */
779 NULL, /* driver name */
780
781 NULL, /* address_data */
782 NULL, /* cannot_route_message */
783 NULL, /* condition */
784 NULL, /* current_directory */
785 NULL, /* debug_string */
786 NULL, /* domains */
787 NULL, /* errors_to */
788 NULL, /* expand_gid */
789 NULL, /* expand_uid */
790 NULL, /* expand_more */
791 NULL, /* expand_unseen */
792 NULL, /* extra_headers */
793 NULL, /* fallback_hosts */
794 NULL, /* home_directory */
795 NULL, /* ignore_target_hosts */
796 NULL, /* local_parts */
797 NULL, /* pass_router_name */
798 NULL, /* prefix */
799 NULL, /* redirect_router_name */
800 NULL, /* remove_headers */
801 NULL, /* require_files */
802 NULL, /* router_home_directory */
803 US"freeze", /* self */
804 NULL, /* senders */
805 NULL, /* suffix */
806 NULL, /* translate_ip_address */
807 NULL, /* transport_name */
808
809 TRUE, /* address_test */
810 TRUE, /* expn */
811 FALSE, /* caseful_local_part */
812 FALSE, /* check_local_user */
813 FALSE, /* disable_logging */
814 FALSE, /* fail_verify_recipient */
815 FALSE, /* fail_verify_sender */
816 FALSE, /* gid_set */
817 FALSE, /* initgroups */
818 TRUE_UNSET, /* log_as_local */
819 TRUE, /* more */
820 FALSE, /* pass_on_timeout */
821 FALSE, /* prefix_optional */
822 TRUE, /* repeat_use */
823 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
824 FALSE, /* same_domain_copy_routing */
825 FALSE, /* self_rewrite */
826 FALSE, /* suffix_optional */
827 FALSE, /* verify_only */
828 TRUE, /* verify_recipient */
829 TRUE, /* verify_sender */
830 FALSE, /* uid_set */
831 FALSE, /* unseen */
832
833 self_freeze, /* self_code */
834 (uid_t)(-1), /* uid */
835 (gid_t)(-1), /* gid */
836
837 NULL, /* fallback_hostlist */
838 NULL, /* transport instance */
839 NULL, /* pass_router */
840 NULL /* redirect_router */
841 };
842
843 ip_address_item *running_interfaces = NULL;
844 BOOL running_in_test_harness = FALSE;
845
846 /* This is a weird one. The following string gets patched in the binary by the
847 script that sets up a copy of Exim for running in the test harness. It seems
848 that compilers are now clever, and share constant strings if they can.
849 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
850 make use of the end of this string in order to save space. So the patching then
851 wrecks this. We default this optimization by adding some additional characters
852 onto the end of the string. */
853
854 uschar *running_status = US">>>running<<<" "\0EXTRA";
855
856 int runrc = 0;
857
858 uschar *search_error_message = NULL;
859 BOOL search_find_defer = FALSE;
860 uschar *self_hostname = NULL;
861 uschar *sender_address = NULL;
862 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
863 uschar *sender_address_data = NULL;
864 BOOL sender_address_forced = FALSE;
865 uschar *sender_address_unrewritten = NULL;
866 uschar *sender_data = NULL;
867 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
868 uschar *sender_fullhost = NULL;
869 uschar *sender_helo_name = NULL;
870 uschar **sender_host_aliases = &no_aliases;
871 uschar *sender_host_address = NULL;
872 uschar *sender_host_authenticated = NULL;
873 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
874 uschar *sender_host_name = NULL;
875 int sender_host_port = 0;
876 BOOL sender_host_notsocket = FALSE;
877 BOOL sender_host_unknown = FALSE;
878 uschar *sender_ident = NULL;
879 BOOL sender_local = FALSE;
880 uschar *sender_rcvhost = NULL;
881 BOOL sender_set_untrusted = FALSE;
882 uschar *sender_unqualified_hosts = NULL;
883 uschar *sender_verify_failure = NULL;
884 address_item *sender_verified_list = NULL;
885 address_item *sender_verified_failed = NULL;
886 int sender_verified_rc = -1;
887 BOOL sender_verified_responded = FALSE;
888 volatile BOOL sigalrm_seen = FALSE;
889 uschar **sighup_argv = NULL;
890 int smtp_accept_count = 0;
891 BOOL smtp_accept_keepalive = TRUE;
892 int smtp_accept_max = 20;
893 int smtp_accept_max_nonmail= 10;
894 uschar *smtp_accept_max_nonmail_hosts = US"*";
895 int smtp_accept_max_per_connection = 1000;
896 uschar *smtp_accept_max_per_host = NULL;
897 int smtp_accept_queue = 0;
898 int smtp_accept_queue_per_connection = 10;
899 int smtp_accept_reserve = 0;
900 uschar *smtp_active_hostname = NULL;
901 BOOL smtp_authenticated = FALSE;
902 uschar *smtp_banner = US"$primary_hostname ESMTP "
903 "Exim $version_number $tod_full"
904 "\0<---------------Space to patch smtp_banner->";
905 BOOL smtp_batched_input = FALSE;
906 BOOL smtp_check_spool_space = TRUE;
907 uschar *smtp_command_argument = NULL;
908 int smtp_connect_backlog = 20;
909 double smtp_delay_mail = 0.0;
910 double smtp_delay_rcpt = 0.0;
911 BOOL smtp_enforce_sync = TRUE;
912 FILE *smtp_in = NULL;
913 BOOL smtp_input = FALSE;
914 int smtp_load_reserve = -1;
915 int smtp_mailcmd_count = 0;
916 FILE *smtp_out = NULL;
917 uschar *smtp_etrn_command = NULL;
918 BOOL smtp_etrn_serialize = TRUE;
919 int smtp_max_synprot_errors= 3;
920 int smtp_max_unknown_commands = 3;
921 uschar *smtp_ratelimit_hosts = NULL;
922 uschar *smtp_ratelimit_mail = NULL;
923 uschar *smtp_ratelimit_rcpt = NULL;
924 uschar *smtp_read_error = US"";
925 int smtp_receive_timeout = 5*60;
926 uschar *smtp_reserve_hosts = NULL;
927 BOOL smtp_return_error_details = FALSE;
928 int smtp_rlm_base = 0;
929 double smtp_rlm_factor = 0.0;
930 int smtp_rlm_limit = 0;
931 int smtp_rlm_threshold = INT_MAX;
932 int smtp_rlr_base = 0;
933 double smtp_rlr_factor = 0.0;
934 int smtp_rlr_limit = 0;
935 int smtp_rlr_threshold = INT_MAX;
936 BOOL smtp_use_pipelining = FALSE;
937 BOOL smtp_use_size = FALSE;
938 BOOL split_spool_directory = FALSE;
939 uschar *spool_directory = US SPOOL_DIRECTORY
940 "\0<--------------Space to patch spool_directory->";
941 int string_datestamp_offset= -1;
942 BOOL strip_excess_angle_brackets = FALSE;
943 BOOL strip_trailing_dot = FALSE;
944 uschar *submission_domain = NULL;
945 BOOL submission_mode = FALSE;
946 BOOL synchronous_delivery = FALSE;
947 BOOL syslog_duplication = TRUE;
948 int syslog_facility = LOG_MAIL;
949 uschar *syslog_processname = US"exim";
950 BOOL syslog_timestamp = TRUE;
951 uschar *system_filter = NULL;
952
953 uschar *system_filter_directory_transport = NULL;
954 uschar *system_filter_file_transport = NULL;
955 uschar *system_filter_pipe_transport = NULL;
956 uschar *system_filter_reply_transport = NULL;
957
958 gid_t system_filter_gid = 0;
959 BOOL system_filter_gid_set = FALSE;
960 uid_t system_filter_uid = 0;
961 BOOL system_filter_uid_set = FALSE;
962 BOOL system_filtering = FALSE;
963
964 BOOL tcp_nodelay = TRUE;
965 int thismessage_size_limit = 0;
966 int timeout_frozen_after = 0;
967 BOOL timestamps_utc = FALSE;
968
969 transport_instance *transports = NULL;
970
971 transport_instance transport_defaults = {
972 NULL, /* chain pointer */
973 NULL, /* name */
974 NULL, /* info */
975 NULL, /* private options block pointer */
976 NULL, /* driver name */
977 NULL, /* setup entry point */
978 1, /* batch_max */
979 NULL, /* batch_id */
980 NULL, /* home_dir */
981 NULL, /* current_dir */
982 TRUE, /* multi-domain */
983 FALSE, /* overrides_hosts */
984 100, /* max_addresses */
985 500, /* connection_max_messages */
986 FALSE, /* deliver_as_creator */
987 FALSE, /* disable_logging */
988 FALSE, /* initgroups */
989 FALSE, /* uid_set */
990 FALSE, /* gid_set */
991 (uid_t)(-1), /* uid */
992 (gid_t)(-1), /* gid */
993 NULL, /* expand_uid */
994 NULL, /* expand_gid */
995 NULL, /* warn_message */
996 NULL, /* shadow */
997 NULL, /* shadow_condition */
998 NULL, /* filter_command */
999 NULL, /* add_headers */
1000 NULL, /* remove_headers */
1001 NULL, /* return_path */
1002 NULL, /* debug_string */
1003 NULL, /* message_size_limit */
1004 NULL, /* headers_rewrite */
1005 NULL, /* rewrite_rules */
1006 0, /* rewrite_existflags */
1007 300, /* filter_timeout */
1008 FALSE, /* body_only */
1009 FALSE, /* delivery_date_add */
1010 FALSE, /* envelope_to_add */
1011 FALSE, /* headers_only */
1012 FALSE, /* rcpt_include_affixes */
1013 FALSE, /* return_path_add */
1014 FALSE, /* return_output */
1015 FALSE, /* return_fail_output */
1016 FALSE, /* log_output */
1017 FALSE, /* log_fail_output */
1018 FALSE, /* log_defer_output */
1019 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1020 1 nor 0 so can detect unset */
1021 };
1022
1023 int transport_count;
1024 uschar **transport_filter_argv = NULL;
1025 int transport_filter_timeout;
1026 int transport_write_timeout= 0;
1027
1028 tree_node *tree_dns_fails = NULL;
1029 tree_node *tree_duplicates = NULL;
1030 tree_node *tree_nonrecipients = NULL;
1031 tree_node *tree_unusable = NULL;
1032
1033 BOOL trusted_caller = FALSE;
1034 gid_t *trusted_groups = NULL;
1035 uid_t *trusted_users = NULL;
1036 uschar *timezone_string = US TIMEZONE_DEFAULT;
1037
1038 uschar *unknown_login = NULL;
1039 uschar *unknown_username = NULL;
1040 uschar *untrusted_set_sender = NULL;
1041
1042 /* A regex for matching a "From_" line in an incoming message, in the form
1043
1044 From ph10 Fri Jan 5 12:35 GMT 1996
1045
1046 which the "mail" commands send to the MTA (undocumented, of course), or in
1047 the form
1048
1049 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1050
1051 which is apparently used by some UUCPs, despite it not being in RFC 976.
1052 Because of variations in time formats, just match up to the minutes. That
1053 should be sufficient. Examples have been seen of time fields like 12:1:03,
1054 so just require one digit for hours and minutes. The weekday is also absent
1055 in some forms. */
1056
1057 uschar *uucp_from_pattern = US
1058 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1059 "(?:" /* Non-extracting bracket */
1060 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1061 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1062 ")" /* End alternation */
1063 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1064
1065 uschar *uucp_from_sender = US"$1";
1066
1067 uschar *warn_message_file = NULL;
1068 uschar *warnmsg_delay = NULL;
1069 uschar *warnmsg_recipients = NULL;
1070 BOOL write_rejectlog = TRUE;
1071
1072 uschar *version_copyright = US"Copyright (c) University of Cambridge 2004";
1073 uschar *version_date = US"?";
1074 uschar *version_cnumber = US"????";
1075 uschar *version_string = US"?";
1076
1077 int warning_count = 0;
1078
1079 /* End of globals.c */