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[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.2 2004/10/18 09:16:57 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 accept_8bitmime = FALSE;
214 address_item *addr_duplicate = NULL;
215
216 address_item address_defaults = {
217 NULL, /* next */
218 NULL, /* parent */
219 NULL, /* first */
220 NULL, /* dupof */
221 NULL, /* start_router */
222 NULL, /* router */
223 NULL, /* transport */
224 NULL, /* host_list */
225 NULL, /* host_used */
226 NULL, /* fallback_hosts */
227 NULL, /* reply */
228 NULL, /* retries */
229 NULL, /* address */
230 NULL, /* unique */
231 NULL, /* cc_local_part */
232 NULL, /* lc_local_part */
233 NULL, /* local_part */
234 NULL, /* prefix */
235 NULL, /* suffix */
236 NULL, /* domain */
237 NULL, /* address_retry_key */
238 NULL, /* domain_retry_key */
239 NULL, /* current_dir */
240 NULL, /* home_dir */
241 NULL, /* message */
242 NULL, /* user_message */
243 NULL, /* onetime_parent */
244 NULL, /* pipe_expandn */
245 NULL, /* return_filename */
246 NULL, /* self_hostname */
247 NULL, /* shadow_message */
248 #ifdef SUPPORT_TLS
249 NULL, /* cipher */
250 NULL, /* peerdn */
251 #endif
252 (uid_t)(-1), /* uid */
253 (gid_t)(-1), /* gid */
254 0, /* flags */
255 { 0 }, /* domain_cache - any larger array should be zeroed */
256 { 0 }, /* localpart_cache - ditto */
257 -1, /* mode */
258 0, /* more_errno */
259 ERRNO_UNKNOWNERROR, /* basic_errno */
260 0, /* child_count */
261 -1, /* return_file */
262 SPECIAL_NONE, /* special_action */
263 DEFER, /* transport_return */
264 { /* fields that are propagated to children */
265 NULL, /* address_data */
266 NULL, /* domain_data */
267 NULL, /* localpart_data */
268 NULL, /* errors_address */
269 NULL, /* extra_headers */
270 NULL, /* remove_headers */
271 }
272 };
273
274 uschar *address_file = NULL;
275 uschar *address_pipe = NULL;
276 BOOL address_test_mode = FALSE;
277 tree_node *addresslist_anchor = NULL;
278 int addresslist_count = 0;
279 gid_t *admin_groups = NULL;
280 BOOL admin_user = FALSE;
281 BOOL allow_domain_literals = FALSE;
282 BOOL allow_mx_to_ip = FALSE;
283 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
284 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
285 BOOL allow_utf8_domains = FALSE;
286 uschar *authenticated_id = NULL;
287 uschar *authenticated_sender = NULL;
288 BOOL authentication_failed = FALSE;
289 auth_instance *auths = NULL;
290 uschar *auth_advertise_hosts = US"*";
291 auth_instance auth_defaults = {
292 NULL, /* chain pointer */
293 NULL, /* name */
294 NULL, /* info */
295 NULL, /* private options block pointer */
296 NULL, /* driver_name */
297 NULL, /* advertise_condition */
298 NULL, /* public_name */
299 NULL, /* set_id */
300 NULL, /* server_mail_auth_condition */
301 NULL, /* server_debug_string */
302 FALSE, /* client */
303 FALSE, /* server */
304 FALSE /* advertised */
305 };
306
307 uschar *auth_defer_msg = US"reason not recorded";
308 uschar *auth_defer_user_msg = US"";
309 int auto_thaw = 0;
310
311 BOOL background_daemon = TRUE;
312 uschar *base62_chars=
313 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
314 uschar *bi_command = NULL;
315 uschar *big_buffer = NULL;
316 int big_buffer_size = BIG_BUFFER_SIZE;
317 int body_linecount = 0;
318 int body_zerocount = 0;
319 uschar *bounce_message_file = NULL;
320 uschar *bounce_message_text = NULL;
321 uschar *bounce_recipient = NULL;
322 BOOL bounce_return_body = TRUE;
323 BOOL bounce_return_message = TRUE;
324 int bounce_return_size_limit = 100*1024;
325 uschar *bounce_sender_authentication = NULL;
326 int bsmtp_transaction_linecount = 0;
327
328 int callout_cache_domain_positive_expire = 7*24*60*60;
329 int callout_cache_domain_negative_expire = 3*60*60;
330 int callout_cache_positive_expire = 24*60*60;
331 int callout_cache_negative_expire = 2*60*60;
332 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
333 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
334 int check_log_inodes = 0;
335 int check_log_space = 0;
336 int check_spool_inodes = 0;
337 int check_spool_space = 0;
338 int clmacro_count = 0;
339 uschar *clmacros[MAX_CLMACROS];
340 BOOL config_changed = FALSE;
341 FILE *config_file = NULL;
342 uschar *config_filename = NULL;
343 int config_lineno = 0;
344 #ifdef CONFIGURE_GROUP
345 gid_t config_gid = CONFIGURE_GROUP;
346 #endif
347 uschar *config_main_filelist = US CONFIGURE_FILE
348 "\0<-----------Space to patch configure_filename->";
349 uschar *config_main_filename = NULL;
350
351 #ifdef CONFIGURE_OWNER
352 uid_t config_uid = CONFIGURE_OWNER;
353 #endif
354
355 int connection_max_messages= -1;
356 uschar *continue_hostname = NULL;
357 uschar *continue_host_address = NULL;
358 BOOL continue_more = FALSE;
359 int continue_sequence = 1;
360 uschar *continue_transport = NULL;
361
362 BOOL daemon_listen = FALSE;
363 uschar *daemon_smtp_port = US"smtp";
364 int debug_fd = -1;
365 FILE *debug_file = NULL;
366 bit_table debug_options[] = {
367 { US"acl", D_acl },
368 { US"all", D_all },
369 { US"auth", D_auth },
370 { US"deliver", D_deliver },
371 { US"dns", D_dns },
372 { US"dnsbl", D_dnsbl },
373 { US"exec", D_exec },
374 { US"expand", D_expand },
375 { US"filter", D_filter },
376 { US"hints_lookup", D_hints_lookup },
377 { US"host_lookup", D_host_lookup },
378 { US"ident", D_ident },
379 { US"interface", D_interface },
380 { US"lists", D_lists },
381 { US"load", D_load },
382 { US"local_scan", D_local_scan },
383 { US"lookup", D_lookup },
384 { US"memory", D_memory },
385 { US"pid", D_pid },
386 { US"process_info", D_process_info },
387 { US"queue_run", D_queue_run },
388 { US"receive", D_receive },
389 { US"resolver", D_resolver },
390 { US"retry", D_retry },
391 { US"rewrite", D_rewrite },
392 { US"route", D_route },
393 { US"timestamp", D_timestamp },
394 { US"tls", D_tls },
395 { US"transport", D_transport },
396 { US"uid", D_uid },
397 { US"verify", D_verify }
398 };
399 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
400 unsigned int debug_selector = 0;
401 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
402 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
403 BOOL delivery_date_remove = TRUE;
404 uschar *deliver_address_data = NULL;
405 int deliver_datafile = -1;
406 uschar *deliver_domain = NULL;
407 uschar *deliver_domain_data = NULL;
408 uschar *deliver_domain_orig = NULL;
409 uschar *deliver_domain_parent = NULL;
410 BOOL deliver_drop_privilege = FALSE;
411 BOOL deliver_firsttime = FALSE;
412 BOOL deliver_force = FALSE;
413 BOOL deliver_freeze = FALSE;
414 int deliver_frozen_at = 0;
415 uschar *deliver_home = NULL;
416 uschar *deliver_host = NULL;
417 uschar *deliver_host_address = NULL;
418 uschar *deliver_in_buffer = NULL;
419 ino_t deliver_inode = 0;
420 uschar *deliver_localpart = NULL;
421 uschar *deliver_localpart_data = NULL;
422 uschar *deliver_localpart_orig = NULL;
423 uschar *deliver_localpart_parent = NULL;
424 uschar *deliver_localpart_prefix = NULL;
425 uschar *deliver_localpart_suffix = NULL;
426 BOOL deliver_force_thaw = FALSE;
427 BOOL deliver_manual_thaw = FALSE;
428 uschar *deliver_out_buffer = NULL;
429 int deliver_queue_load_max = -1;
430 address_item *deliver_recipients = NULL;
431 uschar *deliver_selectstring = NULL;
432 BOOL deliver_selectstring_regex = FALSE;
433 uschar *deliver_selectstring_sender = NULL;
434 BOOL deliver_selectstring_sender_regex = FALSE;
435 BOOL disable_logging = FALSE;
436
437 uschar *dns_again_means_nonexist = NULL;
438 uschar *dns_ipv4_lookup = NULL;
439 int dns_retrans = 0;
440 int dns_retry = 0;
441 uschar *dnslist_domain = NULL;
442 uschar *dnslist_text = NULL;
443 uschar *dnslist_value = NULL;
444 tree_node *domainlist_anchor = NULL;
445 int domainlist_count = 0;
446 BOOL dont_deliver = FALSE;
447 BOOL dot_ends = TRUE;
448 BOOL drop_cr = FALSE; /* No longer used */
449
450 BOOL enable_dollar_recipients = FALSE;
451 BOOL envelope_to_remove = TRUE;
452 int errno_quota = ERRNO_QUOTA;
453 uschar *errors_copy = NULL;
454 int error_handling = ERRORS_SENDER;
455 uschar *errors_reply_to = NULL;
456 int errors_sender_rc = EXIT_FAILURE;
457
458 gid_t exim_gid = EXIM_GID;
459 BOOL exim_gid_set = TRUE; /* This gid is always set */
460 uschar *exim_path = US BIN_DIRECTORY "/exim"
461 "\0<---------------Space to patch exim_path->";
462 uid_t exim_uid = EXIM_UID;
463 BOOL exim_uid_set = TRUE; /* This uid is always set */
464 int expand_forbid = 0;
465 int expand_nlength[EXPAND_MAXN+1];
466 int expand_nmax = -1;
467 uschar *expand_nstring[EXPAND_MAXN+1];
468 BOOL expand_string_forcedfail = FALSE;
469 uschar *expand_string_message;
470 BOOL extract_addresses_remove_arguments = TRUE;
471 uschar *extra_local_interfaces = NULL;
472
473 int filter_n[FILTER_VARIABLE_COUNT];
474 BOOL filter_running = FALSE;
475 int filter_sn[FILTER_VARIABLE_COUNT];
476 uschar *filter_test = NULL;
477 uschar *filter_thisaddress = NULL;
478 int finduser_retries = 0;
479 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
480 uschar *freeze_tell = NULL;
481 uschar *fudged_queue_times = US"";
482
483 uschar *gecos_name = NULL;
484 uschar *gecos_pattern = NULL;
485 rewrite_rule *global_rewrite_rules = NULL;
486
487 uschar *headers_charset = US HEADERS_CHARSET;
488 int header_insert_maxlen = 64 * 1024;
489 header_line *header_last = NULL;
490 header_line *header_list = NULL;
491 int header_maxsize = HEADER_MAXSIZE;
492 int header_line_maxsize = 0;
493
494 header_name header_names[] = {
495 { US"bcc", 3, TRUE, htype_bcc },
496 { US"cc", 2, TRUE, htype_cc },
497 { US"date", 4, TRUE, htype_date },
498 { US"delivery-date", 13, FALSE, htype_delivery_date },
499 { US"envelope-to", 11, FALSE, htype_envelope_to },
500 { US"from", 4, TRUE, htype_from },
501 { US"message-id", 10, TRUE, htype_id },
502 { US"received", 8, FALSE, htype_received },
503 { US"reply-to", 8, FALSE, htype_reply_to },
504 { US"return-path", 11, FALSE, htype_return_path },
505 { US"sender", 6, TRUE, htype_sender },
506 { US"subject", 7, FALSE, htype_subject },
507 { US"to", 2, TRUE, htype_to }
508 };
509
510 int header_names_size = sizeof(header_names)/sizeof(header_name);
511
512 BOOL header_rewritten = FALSE;
513 uschar *helo_accept_junk_hosts = NULL;
514 uschar *helo_allow_chars = US"";
515 uschar *helo_lookup_domains = US"@ : @[]";
516 uschar *helo_try_verify_hosts = NULL;
517 BOOL helo_verified = FALSE;
518 uschar *helo_verify_hosts = NULL;
519 uschar *hex_digits = US"0123456789abcdef";
520 uschar *hold_domains = NULL;
521 BOOL host_checking = FALSE;
522 BOOL host_checking_callout = FALSE;
523 uschar *host_data = NULL;
524 BOOL host_find_failed_syntax= FALSE;
525 uschar *host_lookup = NULL;
526 BOOL host_lookup_failed = FALSE;
527 uschar *host_lookup_order = US"bydns:byaddr";
528 uschar *host_lookup_msg = US"";
529 int host_number = 0;
530 uschar *host_number_string = NULL;
531 uschar *host_reject_connection = NULL;
532 tree_node *hostlist_anchor = NULL;
533 int hostlist_count = 0;
534 uschar *hosts_treat_as_local = NULL;
535 uschar *hosts_connection_nolog = NULL;
536
537 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
538 BOOL ignore_fromline_local = FALSE;
539 uschar *ignore_fromline_hosts = NULL;
540 uschar *interface_address = NULL;
541 int interface_port = -1;
542 BOOL is_inetd = FALSE;
543
544 int journal_fd = -1;
545
546 int keep_malformed = 4*24*60*60; /* 4 days */
547
548 uschar *eldap_dn = NULL;
549 int load_average = -2;
550 BOOL local_error_message = FALSE;
551 BOOL local_from_check = TRUE;
552 uschar *local_from_prefix = NULL;
553 uschar *local_from_suffix = NULL;
554
555 #if HAVE_IPV6
556 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
557 #else
558 uschar *local_interfaces = US"0.0.0.0";
559 #endif
560
561 uschar *local_scan_data = NULL;
562 int local_scan_timeout = 5*60;
563 BOOL local_sender_retain = FALSE;
564 gid_t local_user_gid = (gid_t)(-1);
565 uid_t local_user_uid = (uid_t)(-1);
566
567 tree_node *localpartlist_anchor= NULL;
568 int localpartlist_count = 0;
569 uschar *log_buffer = NULL;
570 unsigned int log_extra_selector = LX_default;
571 uschar *log_file_path = US LOG_FILE_PATH
572 "\0<--------------Space to patch log_file_path->";
573
574 /* Those log options with L_xxx identifiers have values less than 0x800000 and
575 are the ones that get put into log_write_selector. They can be used in calls to
576 log_write() to test for the bit. The options with LX_xxx identifiers have
577 values greater than 0x80000000 and are put int log_extra_selector (without the
578 top bit). They are never used in calls to log_write(), but are tested
579 independently. This separation became necessary when the number of log
580 selectors was getting close to filling a 32-bit word. */
581
582 bit_table log_options[] = {
583 { US"address_rewrite", L_address_rewrite },
584 { US"all", L_all },
585 { US"all_parents", L_all_parents },
586 { US"arguments", LX_arguments },
587 { US"connection_reject", L_connection_reject },
588 { US"delay_delivery", L_delay_delivery },
589 { US"deliver_time", LX_deliver_time },
590 { US"delivery_size", LX_delivery_size },
591 { US"dnslist_defer", L_dnslist_defer },
592 { US"etrn", L_etrn },
593 { US"host_lookup_failed", L_host_lookup_failed },
594 { US"ident_timeout", LX_ident_timeout },
595 { US"incoming_interface", LX_incoming_interface },
596 { US"incoming_port", LX_incoming_port },
597 { US"lost_incoming_connection", L_lost_incoming_connection },
598 { US"outgoing_port", LX_outgoing_port },
599 { US"queue_run", L_queue_run },
600 { US"queue_time", LX_queue_time },
601 { US"received_recipients", LX_received_recipients },
602 { US"received_sender", LX_received_sender },
603 { US"rejected_header", LX_rejected_header },
604 { US"rejected_headers", LX_rejected_header },
605 { US"retry_defer", L_retry_defer },
606 { US"return_path_on_delivery", LX_return_path_on_delivery },
607 { US"sender_on_delivery", LX_sender_on_delivery },
608 { US"size_reject", L_size_reject },
609 { US"skip_delivery", L_skip_delivery },
610 { US"smtp_confirmation", LX_smtp_confirmation },
611 { US"smtp_connection", L_smtp_connection },
612 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
613 { US"smtp_protocol_error", L_smtp_protocol_error },
614 { US"smtp_syntax_error", L_smtp_syntax_error },
615 { US"subject", LX_subject },
616 { US"tls_certificate_verified", LX_tls_certificate_verified },
617 { US"tls_cipher", LX_tls_cipher },
618 { US"tls_peerdn", LX_tls_peerdn }
619 };
620
621 int log_options_count = sizeof(log_options)/sizeof(bit_table);
622 unsigned int log_write_selector= L_default;
623 uschar *log_selector_string = NULL;
624 FILE *log_stderr = NULL;
625 BOOL log_testing_mode = FALSE;
626 BOOL log_timezone = FALSE;
627 uschar *login_sender_address = NULL;
628 int lookup_open_max = 25;
629 uschar *lookup_value = NULL;
630
631 macro_item *macros = NULL;
632 uschar *mailstore_basename = NULL;
633 int max_username_length = 0;
634 int message_age = 0;
635 uschar *message_body = NULL;
636 uschar *message_body_end = NULL;
637 int message_body_size = 0;
638 int message_body_visible = 500;
639 int message_ended = END_NOTSTARTED;
640 uschar *message_headers = NULL;
641 uschar *message_id;
642 uschar *message_id_domain = NULL;
643 uschar *message_id_text = NULL;
644 struct timeval message_id_tv = { 0, 0 };
645 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
646 uschar *message_id_external;
647 int message_linecount = 0;
648 BOOL message_logs = TRUE;
649 int message_size = 0;
650 uschar *message_size_limit = US"50M";
651 uschar message_subdir[2] = { 0, 0 };
652 uschar *message_reference = NULL;
653 BOOL mua_wrapper = FALSE;
654
655 uid_t *never_users = NULL;
656 BOOL no_multiline_responses = FALSE;
657
658 uid_t original_euid;
659 gid_t originator_gid;
660 uschar *originator_login = NULL;
661 uschar *originator_name = NULL;
662 uid_t originator_uid;
663 uschar *override_local_interfaces = NULL;
664 uschar *override_pid_file_path = NULL;
665
666 BOOL parse_allow_group = FALSE;
667 BOOL parse_found_group = FALSE;
668 uschar *percent_hack_domains = NULL;
669 uschar *pid_file_path = US PID_FILE_PATH
670 "\0<--------------Space to patch pid_file_path->";
671 uschar *pipelining_advertise_hosts = US"*";
672 BOOL preserve_message_logs = FALSE;
673 uschar *primary_hostname = NULL;
674 BOOL print_topbitchars = FALSE;
675 uschar process_info[PROCESS_INFO_SIZE];
676 uschar *process_log_path = NULL;
677 BOOL prod_requires_admin = TRUE;
678
679 uschar *qualify_domain_recipient = NULL;
680 uschar *qualify_domain_sender = NULL;
681 BOOL queue_2stage = FALSE;
682 uschar *queue_domains = NULL;
683 int queue_interval = -1;
684 BOOL queue_list_requires_admin = TRUE;
685 BOOL queue_only = FALSE;
686 uschar *queue_only_file = NULL;
687 int queue_only_load = -1;
688 BOOL queue_only_override = TRUE;
689 BOOL queue_only_policy = FALSE;
690 BOOL queue_run_first_delivery = FALSE;
691 BOOL queue_run_force = FALSE;
692 BOOL queue_run_in_order = FALSE;
693 BOOL queue_run_local = FALSE;
694 int queue_run_max = 5;
695 pid_t queue_run_pid = (pid_t)0;
696 int queue_run_pipe = -1;
697 BOOL queue_running = FALSE;
698 BOOL queue_smtp = FALSE;
699 uschar *queue_smtp_domains = NULL;
700
701 unsigned int random_seed = 0;
702 uschar *raw_active_hostname = NULL;
703 uschar *raw_sender = NULL;
704 uschar **raw_recipients = NULL;
705 int raw_recipients_count = 0;
706
707 int rcpt_count = 0;
708 int rcpt_fail_count = 0;
709 int rcpt_defer_count = 0;
710 gid_t real_gid;
711 uid_t real_uid;
712 BOOL really_exim = TRUE;
713 BOOL receive_call_bombout = FALSE;
714 int receive_linecount = 0;
715 int receive_messagecount = 0;
716 int receive_timeout = 0;
717 int received_count = 0;
718 uschar *received_for = NULL;
719
720 /* This is the default text for Received headers generated by Exim. The
721 date will be automatically added on the end. */
722
723 uschar *received_header_text = US
724 "Received: "
725 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
726 "{${if def:sender_ident {from $sender_ident }}"
727 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
728 "by $primary_hostname "
729 "${if def:received_protocol {with $received_protocol}} "
730 #ifdef SUPPORT_TLS
731 "${if def:tls_cipher {($tls_cipher)\n\t}}"
732 #endif
733 "(Exim $version_number)\n\t"
734 "id $message_id"
735 "${if def:received_for {\n\tfor $received_for}}"
736 "\0<---------------Space to patch received_header_text->";
737
738 int received_headers_max = 30;
739 uschar *received_protocol = NULL;
740 int received_time = 0;
741 uschar *recipient_data = NULL;
742 uschar *recipient_unqualified_hosts = NULL;
743 int recipients_count = 0;
744 BOOL recipients_discarded = FALSE;
745 recipient_item *recipients_list = NULL;
746 int recipients_list_max = 0;
747 int recipients_max = 0;
748 BOOL recipients_max_reject = FALSE;
749 const pcre *regex_AUTH = NULL;
750 const pcre *regex_check_dns_names = NULL;
751 const pcre *regex_From = NULL;
752 const pcre *regex_PIPELINING = NULL;
753 const pcre *regex_SIZE = NULL;
754 const pcre *regex_ismsgid = NULL;
755 int remote_delivery_count = 0;
756 int remote_max_parallel = 2;
757 uschar *remote_sort_domains = NULL;
758 int retry_data_expire = 7*24*60*60;
759 int retry_interval_max = 24*60*60;
760 int retry_maximum_timeout = 0; /* set from retry config */
761 retry_config *retries = NULL;
762 uschar *return_path = NULL;
763 BOOL return_path_remove = TRUE;
764 int rewrite_existflags = 0;
765 uschar *rfc1413_hosts = US"*";
766 int rfc1413_query_timeout = 30;
767 /* BOOL rfc821_domains = FALSE; <<< on the way out */
768 uid_t root_uid = ROOT_UID;
769
770 router_instance *routers = NULL;
771 router_instance router_defaults = {
772 NULL, /* chain pointer */
773 NULL, /* name */
774 NULL, /* info */
775 NULL, /* private options block pointer */
776 NULL, /* driver name */
777
778 NULL, /* address_data */
779 NULL, /* cannot_route_message */
780 NULL, /* condition */
781 NULL, /* current_directory */
782 NULL, /* debug_string */
783 NULL, /* domains */
784 NULL, /* errors_to */
785 NULL, /* expand_gid */
786 NULL, /* expand_uid */
787 NULL, /* expand_more */
788 NULL, /* expand_unseen */
789 NULL, /* extra_headers */
790 NULL, /* fallback_hosts */
791 NULL, /* home_directory */
792 NULL, /* ignore_target_hosts */
793 NULL, /* local_parts */
794 NULL, /* pass_router_name */
795 NULL, /* prefix */
796 NULL, /* redirect_router_name */
797 NULL, /* remove_headers */
798 NULL, /* require_files */
799 NULL, /* router_home_directory */
800 US"freeze", /* self */
801 NULL, /* senders */
802 NULL, /* suffix */
803 NULL, /* translate_ip_address */
804 NULL, /* transport_name */
805
806 TRUE, /* address_test */
807 TRUE, /* expn */
808 FALSE, /* caseful_local_part */
809 FALSE, /* check_local_user */
810 FALSE, /* disable_logging */
811 FALSE, /* fail_verify_recipient */
812 FALSE, /* fail_verify_sender */
813 FALSE, /* gid_set */
814 FALSE, /* initgroups */
815 TRUE_UNSET, /* log_as_local */
816 TRUE, /* more */
817 FALSE, /* pass_on_timeout */
818 FALSE, /* prefix_optional */
819 TRUE, /* repeat_use */
820 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
821 FALSE, /* same_domain_copy_routing */
822 FALSE, /* self_rewrite */
823 FALSE, /* suffix_optional */
824 FALSE, /* verify_only */
825 TRUE, /* verify_recipient */
826 TRUE, /* verify_sender */
827 FALSE, /* uid_set */
828 FALSE, /* unseen */
829
830 self_freeze, /* self_code */
831 (uid_t)(-1), /* uid */
832 (gid_t)(-1), /* gid */
833
834 NULL, /* fallback_hostlist */
835 NULL, /* transport instance */
836 NULL, /* pass_router */
837 NULL /* redirect_router */
838 };
839
840 ip_address_item *running_interfaces = NULL;
841 BOOL running_in_test_harness = FALSE;
842
843 /* This is a weird one. The following string gets patched in the binary by the
844 script that sets up a copy of Exim for running in the test harness. It seems
845 that compilers are now clever, and share constant strings if they can.
846 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
847 make use of the end of this string in order to save space. So the patching then
848 wrecks this. We default this optimization by adding some additional characters
849 onto the end of the string. */
850
851 uschar *running_status = US">>>running<<<" "\0EXTRA";
852
853 int runrc = 0;
854
855 uschar *search_error_message = NULL;
856 BOOL search_find_defer = FALSE;
857 uschar *self_hostname = NULL;
858 uschar *sender_address = NULL;
859 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
860 BOOL sender_address_forced = FALSE;
861 uschar *sender_address_unrewritten = NULL;
862 uschar *sender_data = NULL;
863 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
864 uschar *sender_fullhost = NULL;
865 uschar *sender_helo_name = NULL;
866 uschar **sender_host_aliases = &no_aliases;
867 uschar *sender_host_address = NULL;
868 uschar *sender_host_authenticated = NULL;
869 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
870 uschar *sender_host_name = NULL;
871 int sender_host_port = 0;
872 BOOL sender_host_notsocket = FALSE;
873 BOOL sender_host_unknown = FALSE;
874 uschar *sender_ident = NULL;
875 BOOL sender_local = FALSE;
876 uschar *sender_rcvhost = NULL;
877 BOOL sender_set_untrusted = FALSE;
878 uschar *sender_unqualified_hosts = NULL;
879 address_item *sender_verified_list = NULL;
880 address_item *sender_verified_failed = NULL;
881 int sender_verified_rc = -1;
882 BOOL sender_verified_responded = FALSE;
883 volatile BOOL sigalrm_seen = FALSE;
884 uschar **sighup_argv = NULL;
885 int smtp_accept_count = 0;
886 BOOL smtp_accept_keepalive = TRUE;
887 int smtp_accept_max = 20;
888 int smtp_accept_max_nonmail= 10;
889 uschar *smtp_accept_max_nonmail_hosts = US"*";
890 int smtp_accept_max_per_connection = 1000;
891 uschar *smtp_accept_max_per_host = NULL;
892 int smtp_accept_queue = 0;
893 int smtp_accept_queue_per_connection = 10;
894 int smtp_accept_reserve = 0;
895 uschar *smtp_active_hostname = NULL;
896 BOOL smtp_authenticated = FALSE;
897 uschar *smtp_banner = US"$primary_hostname ESMTP "
898 "Exim $version_number $tod_full"
899 "\0<---------------Space to patch smtp_banner->";
900 BOOL smtp_batched_input = FALSE;
901 BOOL smtp_check_spool_space = TRUE;
902 uschar *smtp_command_argument = NULL;
903 int smtp_connect_backlog = 20;
904 double smtp_delay_mail = 0.0;
905 double smtp_delay_rcpt = 0.0;
906 BOOL smtp_enforce_sync = TRUE;
907 FILE *smtp_in = NULL;
908 BOOL smtp_input = FALSE;
909 int smtp_load_reserve = -1;
910 int smtp_mailcmd_count = 0;
911 FILE *smtp_out = NULL;
912 uschar *smtp_etrn_command = NULL;
913 BOOL smtp_etrn_serialize = TRUE;
914 int smtp_max_synprot_errors= 3;
915 int smtp_max_unknown_commands = 3;
916 uschar *smtp_ratelimit_hosts = NULL;
917 uschar *smtp_ratelimit_mail = NULL;
918 uschar *smtp_ratelimit_rcpt = NULL;
919 uschar *smtp_read_error = US"";
920 int smtp_receive_timeout = 5*60;
921 uschar *smtp_reserve_hosts = NULL;
922 BOOL smtp_return_error_details = FALSE;
923 int smtp_rlm_base = 0;
924 double smtp_rlm_factor = 0.0;
925 int smtp_rlm_limit = 0;
926 int smtp_rlm_threshold = INT_MAX;
927 int smtp_rlr_base = 0;
928 double smtp_rlr_factor = 0.0;
929 int smtp_rlr_limit = 0;
930 int smtp_rlr_threshold = INT_MAX;
931 BOOL smtp_use_pipelining = FALSE;
932 BOOL smtp_use_size = FALSE;
933 BOOL split_spool_directory = FALSE;
934 uschar *spool_directory = US SPOOL_DIRECTORY
935 "\0<--------------Space to patch spool_directory->";
936 int string_datestamp_offset= -1;
937 BOOL strip_excess_angle_brackets = FALSE;
938 BOOL strip_trailing_dot = FALSE;
939 uschar *submission_domain = NULL;
940 BOOL submission_mode = FALSE;
941 BOOL synchronous_delivery = FALSE;
942 BOOL syslog_duplication = TRUE;
943 int syslog_facility = LOG_MAIL;
944 uschar *syslog_processname = US"exim";
945 BOOL syslog_timestamp = TRUE;
946 uschar *system_filter = NULL;
947
948 uschar *system_filter_directory_transport = NULL;
949 uschar *system_filter_file_transport = NULL;
950 uschar *system_filter_pipe_transport = NULL;
951 uschar *system_filter_reply_transport = NULL;
952
953 gid_t system_filter_gid = 0;
954 BOOL system_filter_gid_set = FALSE;
955 uid_t system_filter_uid = 0;
956 BOOL system_filter_uid_set = FALSE;
957 BOOL system_filtering = FALSE;
958
959 BOOL tcp_nodelay = TRUE;
960 int thismessage_size_limit = 0;
961 int timeout_frozen_after = 0;
962 BOOL timestamps_utc = FALSE;
963
964 transport_instance *transports = NULL;
965
966 transport_instance transport_defaults = {
967 NULL, /* chain pointer */
968 NULL, /* name */
969 NULL, /* info */
970 NULL, /* private options block pointer */
971 NULL, /* driver name */
972 NULL, /* setup entry point */
973 1, /* batch_max */
974 NULL, /* batch_id */
975 NULL, /* home_dir */
976 NULL, /* current_dir */
977 TRUE, /* multi-domain */
978 FALSE, /* overrides_hosts */
979 100, /* max_addresses */
980 500, /* connection_max_messages */
981 FALSE, /* deliver_as_creator */
982 FALSE, /* disable_logging */
983 FALSE, /* initgroups */
984 FALSE, /* uid_set */
985 FALSE, /* gid_set */
986 (uid_t)(-1), /* uid */
987 (gid_t)(-1), /* gid */
988 NULL, /* expand_uid */
989 NULL, /* expand_gid */
990 NULL, /* warn_message */
991 NULL, /* shadow */
992 NULL, /* shadow_condition */
993 NULL, /* filter_command */
994 NULL, /* add_headers */
995 NULL, /* remove_headers */
996 NULL, /* return_path */
997 NULL, /* debug_string */
998 NULL, /* message_size_limit */
999 NULL, /* headers_rewrite */
1000 NULL, /* rewrite_rules */
1001 0, /* rewrite_existflags */
1002 300, /* filter_timeout */
1003 FALSE, /* body_only */
1004 FALSE, /* delivery_date_add */
1005 FALSE, /* envelope_to_add */
1006 FALSE, /* headers_only */
1007 FALSE, /* rcpt_include_affixes */
1008 FALSE, /* return_path_add */
1009 FALSE, /* return_output */
1010 FALSE, /* return_fail_output */
1011 FALSE, /* log_output */
1012 FALSE, /* log_fail_output */
1013 FALSE, /* log_defer_output */
1014 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1015 1 nor 0 so can detect unset */
1016 };
1017
1018 int transport_count;
1019 uschar **transport_filter_argv = NULL;
1020 int transport_filter_timeout;
1021 int transport_write_timeout= 0;
1022
1023 tree_node *tree_dns_fails = NULL;
1024 tree_node *tree_duplicates = NULL;
1025 tree_node *tree_nonrecipients = NULL;
1026 tree_node *tree_unusable = NULL;
1027
1028 BOOL trusted_caller = FALSE;
1029 gid_t *trusted_groups = NULL;
1030 uid_t *trusted_users = NULL;
1031 uschar *timezone_string = US TIMEZONE_DEFAULT;
1032
1033 uschar *unknown_login = NULL;
1034 uschar *unknown_username = NULL;
1035 uschar *untrusted_set_sender = NULL;
1036
1037 /* A regex for matching a "From_" line in an incoming message, in the form
1038
1039 From ph10 Fri Jan 5 12:35 GMT 1996
1040
1041 which the "mail" commands send to the MTA (undocumented, of course), or in
1042 the form
1043
1044 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1045
1046 which is apparently used by some UUCPs, despite it not being in RFC 976.
1047 Because of variations in time formats, just match up to the minutes. That
1048 should be sufficient. Examples have been seen of time fields like 12:1:03,
1049 so just require one digit for hours and minutes. The weekday is also absent
1050 in some forms. */
1051
1052 uschar *uucp_from_pattern = US
1053 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1054 "(?:" /* Non-extracting bracket */
1055 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1056 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1057 ")" /* End alternation */
1058 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1059
1060 uschar *uucp_from_sender = US"$1";
1061
1062 uschar *warn_message_file = NULL;
1063 uschar *warnmsg_delay = NULL;
1064 uschar *warnmsg_recipients = NULL;
1065 BOOL write_rejectlog = TRUE;
1066
1067 uschar *version_copyright = US"Copyright (c) University of Cambridge 2004";
1068 uschar *version_date = US"?";
1069 uschar *version_cnumber = US"????";
1070 uschar *version_string = US"?";
1071
1072 int warning_count = 0;
1073
1074 /* End of globals.c */
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