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[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.19 2005/03/08 15:32:02 tom Exp $ */
2
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
6
7 /* Copyright (c) University of Cambridge 1995 - 2005 */
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 #ifdef WITH_CONTENT_SCAN
168 uschar *acl_smtp_mime = NULL;
169 #endif
170 uschar *acl_smtp_predata = NULL;
171 uschar *acl_smtp_quit = NULL;
172 uschar *acl_smtp_rcpt = NULL;
173 uschar *acl_smtp_starttls = NULL;
174 uschar *acl_smtp_vrfy = NULL;
175 BOOL acl_temp_details = FALSE;
176 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
177 uschar *acl_verify_message = NULL;
178 header_line *acl_warn_headers = NULL;
179 string_item *acl_warn_logged = NULL;
180
181 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
182 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
183
184 uschar *acl_wherenames[] = { US"RCPT",
185 US"MAIL",
186 US"PREDATA",
187 #ifdef WITH_CONTENT_SCAN
188 US"MIME",
189 #endif
190 US"DATA",
191 US"non-SMTP",
192 US"AUTH",
193 US"connection",
194 US"ETRN",
195 US"EXPN",
196 US"EHLO or HELO",
197 US"MAILAUTH",
198 US"QUIT",
199 US"STARTTLS",
200 US"VRFY"
201 };
202
203 int acl_wherecodes[] = { 550, /* RCPT */
204 550, /* MAIL */
205 550, /* PREDATA */
206 #ifdef WITH_CONTENT_SCAN
207 550, /* MIME */
208 #endif
209 550, /* DATA */
210 0, /* not SMTP; not relevant */
211 503, /* AUTH */
212 550, /* connect */
213 458, /* ETRN */
214 550, /* EXPN */
215 550, /* HELO/EHLO */
216 0, /* MAILAUTH; not relevant */
217 0, /* QUIT; not relevant */
218 550, /* STARTTLS */
219 252 /* VRFY */
220 };
221
222 BOOL active_local_from_check = FALSE;
223 BOOL active_local_sender_retain = FALSE;
224 BOOL accept_8bitmime = FALSE;
225 address_item *addr_duplicate = NULL;
226
227 address_item address_defaults = {
228 NULL, /* next */
229 NULL, /* parent */
230 NULL, /* first */
231 NULL, /* dupof */
232 NULL, /* start_router */
233 NULL, /* router */
234 NULL, /* transport */
235 NULL, /* host_list */
236 NULL, /* host_used */
237 NULL, /* fallback_hosts */
238 NULL, /* reply */
239 NULL, /* retries */
240 NULL, /* address */
241 NULL, /* unique */
242 NULL, /* cc_local_part */
243 NULL, /* lc_local_part */
244 NULL, /* local_part */
245 NULL, /* prefix */
246 NULL, /* suffix */
247 NULL, /* domain */
248 NULL, /* address_retry_key */
249 NULL, /* domain_retry_key */
250 NULL, /* current_dir */
251 NULL, /* home_dir */
252 NULL, /* message */
253 NULL, /* user_message */
254 NULL, /* onetime_parent */
255 NULL, /* pipe_expandn */
256 NULL, /* return_filename */
257 NULL, /* self_hostname */
258 NULL, /* shadow_message */
259 #ifdef SUPPORT_TLS
260 NULL, /* cipher */
261 NULL, /* peerdn */
262 #endif
263 (uid_t)(-1), /* uid */
264 (gid_t)(-1), /* gid */
265 0, /* flags */
266 { 0 }, /* domain_cache - any larger array should be zeroed */
267 { 0 }, /* localpart_cache - ditto */
268 -1, /* mode */
269 0, /* more_errno */
270 ERRNO_UNKNOWNERROR, /* basic_errno */
271 0, /* child_count */
272 -1, /* return_file */
273 SPECIAL_NONE, /* special_action */
274 DEFER, /* transport_return */
275 { /* fields that are propagated to children */
276 NULL, /* address_data */
277 NULL, /* domain_data */
278 NULL, /* localpart_data */
279 NULL, /* errors_address */
280 NULL, /* extra_headers */
281 NULL, /* remove_headers */
282 }
283 };
284
285 uschar *address_file = NULL;
286 uschar *address_pipe = NULL;
287 BOOL address_test_mode = FALSE;
288 tree_node *addresslist_anchor = NULL;
289 int addresslist_count = 0;
290 gid_t *admin_groups = NULL;
291 BOOL admin_user = FALSE;
292 BOOL allow_domain_literals = FALSE;
293 BOOL allow_mx_to_ip = FALSE;
294 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
295 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
296 BOOL allow_utf8_domains = FALSE;
297 uschar *authenticated_id = NULL;
298 uschar *authenticated_sender = NULL;
299 BOOL authentication_failed = FALSE;
300 auth_instance *auths = NULL;
301 uschar *auth_advertise_hosts = US"*";
302 auth_instance auth_defaults = {
303 NULL, /* chain pointer */
304 NULL, /* name */
305 NULL, /* info */
306 NULL, /* private options block pointer */
307 NULL, /* driver_name */
308 NULL, /* advertise_condition */
309 NULL, /* public_name */
310 NULL, /* set_id */
311 NULL, /* server_mail_auth_condition */
312 NULL, /* server_debug_string */
313 FALSE, /* client */
314 FALSE, /* server */
315 FALSE /* advertised */
316 };
317
318 uschar *auth_defer_msg = US"reason not recorded";
319 uschar *auth_defer_user_msg = US"";
320 int auto_thaw = 0;
321 #ifdef WITH_CONTENT_SCAN
322 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
323 #endif
324
325 BOOL background_daemon = TRUE;
326 uschar *base62_chars=
327 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
328 uschar *bi_command = NULL;
329 uschar *big_buffer = NULL;
330 int big_buffer_size = BIG_BUFFER_SIZE;
331 #ifdef EXPERIMENTAL_BRIGHTMAIL
332 uschar *bmi_alt_location = NULL;
333 uschar *bmi_base64_tracker_verdict = NULL;
334 uschar *bmi_base64_verdict = NULL;
335 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
336 int bmi_deliver = 1;
337 int bmi_run = 0;
338 uschar *bmi_verdicts = NULL;
339 #endif
340 int body_linecount = 0;
341 int body_zerocount = 0;
342 uschar *bounce_message_file = NULL;
343 uschar *bounce_message_text = NULL;
344 uschar *bounce_recipient = NULL;
345 BOOL bounce_return_body = TRUE;
346 BOOL bounce_return_message = TRUE;
347 int bounce_return_size_limit = 100*1024;
348 uschar *bounce_sender_authentication = NULL;
349 int bsmtp_transaction_linecount = 0;
350
351 int callout_cache_domain_positive_expire = 7*24*60*60;
352 int callout_cache_domain_negative_expire = 3*60*60;
353 int callout_cache_positive_expire = 24*60*60;
354 int callout_cache_negative_expire = 2*60*60;
355 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
356 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
357 int check_log_inodes = 0;
358 int check_log_space = 0;
359 int check_spool_inodes = 0;
360 int check_spool_space = 0;
361 int clmacro_count = 0;
362 uschar *clmacros[MAX_CLMACROS];
363 BOOL config_changed = FALSE;
364 FILE *config_file = NULL;
365 uschar *config_filename = NULL;
366 int config_lineno = 0;
367 #ifdef CONFIGURE_GROUP
368 gid_t config_gid = CONFIGURE_GROUP;
369 #endif
370 uschar *config_main_filelist = US CONFIGURE_FILE
371 "\0<-----------Space to patch configure_filename->";
372 uschar *config_main_filename = NULL;
373
374 #ifdef CONFIGURE_OWNER
375 uid_t config_uid = CONFIGURE_OWNER;
376 #endif
377
378 int connection_max_messages= -1;
379 uschar *continue_hostname = NULL;
380 uschar *continue_host_address = NULL;
381 BOOL continue_more = FALSE;
382 int continue_sequence = 1;
383 uschar *continue_transport = NULL;
384
385 BOOL daemon_listen = FALSE;
386 uschar *daemon_smtp_port = US"smtp";
387 BOOL debug_daemon = FALSE;
388 int debug_fd = -1;
389 FILE *debug_file = NULL;
390 bit_table debug_options[] = {
391 { US"acl", D_acl },
392 { US"all", D_all },
393 { US"auth", D_auth },
394 { US"deliver", D_deliver },
395 { US"dns", D_dns },
396 { US"dnsbl", D_dnsbl },
397 { US"exec", D_exec },
398 { US"expand", D_expand },
399 { US"filter", D_filter },
400 { US"hints_lookup", D_hints_lookup },
401 { US"host_lookup", D_host_lookup },
402 { US"ident", D_ident },
403 { US"interface", D_interface },
404 { US"lists", D_lists },
405 { US"load", D_load },
406 { US"local_scan", D_local_scan },
407 { US"lookup", D_lookup },
408 { US"memory", D_memory },
409 { US"pid", D_pid },
410 { US"process_info", D_process_info },
411 { US"queue_run", D_queue_run },
412 { US"receive", D_receive },
413 { US"resolver", D_resolver },
414 { US"retry", D_retry },
415 { US"rewrite", D_rewrite },
416 { US"route", D_route },
417 { US"timestamp", D_timestamp },
418 { US"tls", D_tls },
419 { US"transport", D_transport },
420 { US"uid", D_uid },
421 { US"verify", D_verify }
422 };
423 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
424 unsigned int debug_selector = 0;
425 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
426 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
427 BOOL delivery_date_remove = TRUE;
428 uschar *deliver_address_data = NULL;
429 int deliver_datafile = -1;
430 uschar *deliver_domain = NULL;
431 uschar *deliver_domain_data = NULL;
432 uschar *deliver_domain_orig = NULL;
433 uschar *deliver_domain_parent = NULL;
434 BOOL deliver_drop_privilege = FALSE;
435 BOOL deliver_firsttime = FALSE;
436 BOOL deliver_force = FALSE;
437 BOOL deliver_freeze = FALSE;
438 int deliver_frozen_at = 0;
439 uschar *deliver_home = NULL;
440 uschar *deliver_host = NULL;
441 uschar *deliver_host_address = NULL;
442 uschar *deliver_in_buffer = NULL;
443 ino_t deliver_inode = 0;
444 uschar *deliver_localpart = NULL;
445 uschar *deliver_localpart_data = NULL;
446 uschar *deliver_localpart_orig = NULL;
447 uschar *deliver_localpart_parent = NULL;
448 uschar *deliver_localpart_prefix = NULL;
449 uschar *deliver_localpart_suffix = NULL;
450 BOOL deliver_force_thaw = FALSE;
451 BOOL deliver_manual_thaw = FALSE;
452 uschar *deliver_out_buffer = NULL;
453 int deliver_queue_load_max = -1;
454 address_item *deliver_recipients = NULL;
455 uschar *deliver_selectstring = NULL;
456 BOOL deliver_selectstring_regex = FALSE;
457 uschar *deliver_selectstring_sender = NULL;
458 BOOL deliver_selectstring_sender_regex = FALSE;
459 #ifdef WITH_OLD_DEMIME
460 int demime_errorlevel = 0;
461 int demime_ok = 0;
462 uschar *demime_reason = NULL;
463 #endif
464 BOOL disable_logging = FALSE;
465
466 #ifdef EXPERIMENTAL_DOMAINKEYS
467 uschar *dk_signing_domain = NULL;
468 uschar *dk_signing_selector = NULL;
469 int dk_do_verify = 0;
470 #endif
471
472 uschar *dns_again_means_nonexist = NULL;
473 uschar *dns_ipv4_lookup = NULL;
474 int dns_retrans = 0;
475 int dns_retry = 0;
476 uschar *dnslist_domain = NULL;
477 uschar *dnslist_text = NULL;
478 uschar *dnslist_value = NULL;
479 tree_node *domainlist_anchor = NULL;
480 int domainlist_count = 0;
481 BOOL dont_deliver = FALSE;
482 BOOL dot_ends = TRUE;
483 BOOL drop_cr = FALSE; /* No longer used */
484
485 BOOL enable_dollar_recipients = FALSE;
486 BOOL envelope_to_remove = TRUE;
487 int errno_quota = ERRNO_QUOTA;
488 uschar *errors_copy = NULL;
489 int error_handling = ERRORS_SENDER;
490 uschar *errors_reply_to = NULL;
491 int errors_sender_rc = EXIT_FAILURE;
492
493 gid_t exim_gid = EXIM_GID;
494 BOOL exim_gid_set = TRUE; /* This gid is always set */
495 uschar *exim_path = US BIN_DIRECTORY "/exim"
496 "\0<---------------Space to patch exim_path->";
497 uid_t exim_uid = EXIM_UID;
498 BOOL exim_uid_set = TRUE; /* This uid is always set */
499 int expand_forbid = 0;
500 int expand_nlength[EXPAND_MAXN+1];
501 int expand_nmax = -1;
502 uschar *expand_nstring[EXPAND_MAXN+1];
503 BOOL expand_string_forcedfail = FALSE;
504 uschar *expand_string_message;
505 BOOL extract_addresses_remove_arguments = TRUE;
506 uschar *extra_local_interfaces = NULL;
507
508 BOOL fake_reject = FALSE;
509 uschar *fake_reject_text = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legitimate message, it may still be delivered to the target recipient(s).";
510 int filter_n[FILTER_VARIABLE_COUNT];
511 BOOL filter_running = FALSE;
512 int filter_sn[FILTER_VARIABLE_COUNT];
513 int filter_test = FTEST_NONE;
514 uschar *filter_test_sfile = NULL;
515 uschar *filter_test_ufile = NULL;
516 uschar *filter_thisaddress = NULL;
517 int finduser_retries = 0;
518 #ifdef WITH_OLD_DEMIME
519 uschar *found_extension = NULL;
520 #endif
521 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
522 uschar *freeze_tell = NULL;
523 uschar *fudged_queue_times = US"";
524
525 uschar *gecos_name = NULL;
526 uschar *gecos_pattern = NULL;
527 rewrite_rule *global_rewrite_rules = NULL;
528
529 uschar *headers_charset = US HEADERS_CHARSET;
530 int header_insert_maxlen = 64 * 1024;
531 header_line *header_last = NULL;
532 header_line *header_list = NULL;
533 int header_maxsize = HEADER_MAXSIZE;
534 int header_line_maxsize = 0;
535
536 header_name header_names[] = {
537 { US"bcc", 3, TRUE, htype_bcc },
538 { US"cc", 2, TRUE, htype_cc },
539 { US"date", 4, TRUE, htype_date },
540 { US"delivery-date", 13, FALSE, htype_delivery_date },
541 { US"envelope-to", 11, FALSE, htype_envelope_to },
542 { US"from", 4, TRUE, htype_from },
543 { US"message-id", 10, TRUE, htype_id },
544 { US"received", 8, FALSE, htype_received },
545 { US"reply-to", 8, FALSE, htype_reply_to },
546 { US"return-path", 11, FALSE, htype_return_path },
547 { US"sender", 6, TRUE, htype_sender },
548 { US"subject", 7, FALSE, htype_subject },
549 { US"to", 2, TRUE, htype_to }
550 };
551
552 int header_names_size = sizeof(header_names)/sizeof(header_name);
553
554 BOOL header_rewritten = FALSE;
555 uschar *helo_accept_junk_hosts = NULL;
556 uschar *helo_allow_chars = US"";
557 uschar *helo_lookup_domains = US"@ : @[]";
558 uschar *helo_try_verify_hosts = NULL;
559 BOOL helo_verified = FALSE;
560 uschar *helo_verify_hosts = NULL;
561 uschar *hex_digits = US"0123456789abcdef";
562 uschar *hold_domains = NULL;
563 BOOL host_checking = FALSE;
564 BOOL host_checking_callout = FALSE;
565 uschar *host_data = NULL;
566 BOOL host_find_failed_syntax= FALSE;
567 uschar *host_lookup = NULL;
568 BOOL host_lookup_deferred = FALSE;
569 BOOL host_lookup_failed = FALSE;
570 uschar *host_lookup_order = US"bydns:byaddr";
571 uschar *host_lookup_msg = US"";
572 int host_number = 0;
573 uschar *host_number_string = NULL;
574 uschar *host_reject_connection = NULL;
575 tree_node *hostlist_anchor = NULL;
576 int hostlist_count = 0;
577 uschar *hosts_treat_as_local = NULL;
578 uschar *hosts_connection_nolog = NULL;
579
580 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
581 BOOL ignore_fromline_local = FALSE;
582 uschar *ignore_fromline_hosts = NULL;
583 uschar *interface_address = NULL;
584 int interface_port = -1;
585 BOOL is_inetd = FALSE;
586
587 int journal_fd = -1;
588
589 int keep_malformed = 4*24*60*60; /* 4 days */
590
591 uschar *eldap_dn = NULL;
592 int load_average = -2;
593 BOOL local_error_message = FALSE;
594 BOOL local_from_check = TRUE;
595 uschar *local_from_prefix = NULL;
596 uschar *local_from_suffix = NULL;
597
598 #if HAVE_IPV6
599 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
600 #else
601 uschar *local_interfaces = US"0.0.0.0";
602 #endif
603
604 uschar *local_scan_data = NULL;
605 int local_scan_timeout = 5*60;
606 BOOL local_sender_retain = FALSE;
607 gid_t local_user_gid = (gid_t)(-1);
608 uid_t local_user_uid = (uid_t)(-1);
609
610 tree_node *localpartlist_anchor= NULL;
611 int localpartlist_count = 0;
612 uschar *log_buffer = NULL;
613 unsigned int log_extra_selector = LX_default;
614 uschar *log_file_path = US LOG_FILE_PATH
615 "\0<--------------Space to patch log_file_path->";
616
617 /* Those log options with L_xxx identifiers have values less than 0x800000 and
618 are the ones that get put into log_write_selector. They can be used in calls to
619 log_write() to test for the bit. The options with LX_xxx identifiers have
620 values greater than 0x80000000 and are put int log_extra_selector (without the
621 top bit). They are never used in calls to log_write(), but are tested
622 independently. This separation became necessary when the number of log
623 selectors was getting close to filling a 32-bit word. */
624
625 bit_table log_options[] = {
626 { US"address_rewrite", L_address_rewrite },
627 { US"all", L_all },
628 { US"all_parents", L_all_parents },
629 { US"arguments", LX_arguments },
630 { US"connection_reject", L_connection_reject },
631 { US"delay_delivery", L_delay_delivery },
632 { US"deliver_time", LX_deliver_time },
633 { US"delivery_size", LX_delivery_size },
634 { US"dnslist_defer", L_dnslist_defer },
635 { US"etrn", L_etrn },
636 { US"host_lookup_failed", L_host_lookup_failed },
637 { US"ident_timeout", LX_ident_timeout },
638 { US"incoming_interface", LX_incoming_interface },
639 { US"incoming_port", LX_incoming_port },
640 { US"lost_incoming_connection", L_lost_incoming_connection },
641 { US"outgoing_port", LX_outgoing_port },
642 { US"queue_run", L_queue_run },
643 { US"queue_time", LX_queue_time },
644 { US"queue_time_overall", LX_queue_time_overall },
645 { US"received_recipients", LX_received_recipients },
646 { US"received_sender", LX_received_sender },
647 { US"rejected_header", LX_rejected_header },
648 { US"rejected_headers", LX_rejected_header },
649 { US"retry_defer", L_retry_defer },
650 { US"return_path_on_delivery", LX_return_path_on_delivery },
651 { US"sender_on_delivery", LX_sender_on_delivery },
652 { US"size_reject", L_size_reject },
653 { US"skip_delivery", L_skip_delivery },
654 { US"smtp_confirmation", LX_smtp_confirmation },
655 { US"smtp_connection", L_smtp_connection },
656 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
657 { US"smtp_protocol_error", L_smtp_protocol_error },
658 { US"smtp_syntax_error", L_smtp_syntax_error },
659 { US"subject", LX_subject },
660 { US"tls_certificate_verified", LX_tls_certificate_verified },
661 { US"tls_cipher", LX_tls_cipher },
662 { US"tls_peerdn", LX_tls_peerdn }
663 };
664
665 int log_options_count = sizeof(log_options)/sizeof(bit_table);
666 unsigned int log_write_selector= L_default;
667 uschar *log_selector_string = NULL;
668 FILE *log_stderr = NULL;
669 BOOL log_testing_mode = FALSE;
670 BOOL log_timezone = FALSE;
671 uschar *login_sender_address = NULL;
672 int lookup_open_max = 25;
673 uschar *lookup_value = NULL;
674
675 macro_item *macros = NULL;
676 uschar *mailstore_basename = NULL;
677 #ifdef WITH_CONTENT_SCAN
678 uschar *malware_name = NULL; /* Virus Name */
679 #endif
680 int max_username_length = 0;
681 int message_age = 0;
682 uschar *message_body = NULL;
683 uschar *message_body_end = NULL;
684 int message_body_size = 0;
685 int message_body_visible = 500;
686 int message_ended = END_NOTSTARTED;
687 uschar *message_headers = NULL;
688 uschar *message_id;
689 uschar *message_id_domain = NULL;
690 uschar *message_id_text = NULL;
691 struct timeval message_id_tv = { 0, 0 };
692 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
693 uschar *message_id_external;
694 int message_linecount = 0;
695 BOOL message_logs = TRUE;
696 int message_size = 0;
697 uschar *message_size_limit = US"50M";
698 uschar message_subdir[2] = { 0, 0 };
699 uschar *message_reference = NULL;
700
701 /* MIME ACL expandables */
702 #ifdef WITH_CONTENT_SCAN
703 int mime_anomaly_level = 0;
704 uschar *mime_anomaly_text = NULL;
705 uschar *mime_boundary = NULL;
706 uschar *mime_charset = NULL;
707 uschar *mime_content_description = NULL;
708 uschar *mime_content_disposition = NULL;
709 uschar *mime_content_id = NULL;
710 unsigned int mime_content_size = 0;
711 uschar *mime_content_transfer_encoding = NULL;
712 uschar *mime_content_type = NULL;
713 uschar *mime_decoded_filename = NULL;
714 uschar *mime_filename = NULL;
715 int mime_is_multipart = 0;
716 int mime_is_coverletter = 0;
717 int mime_is_rfc822 = 0;
718 int mime_part_count = -1;
719 #endif
720
721 BOOL mua_wrapper = FALSE;
722
723 uid_t *never_users = NULL;
724 #ifdef WITH_CONTENT_SCAN
725 BOOL no_mbox_unspool = FALSE;
726 #endif
727 BOOL no_multiline_responses = FALSE;
728
729 uid_t original_euid;
730 gid_t originator_gid;
731 uschar *originator_login = NULL;
732 uschar *originator_name = NULL;
733 uid_t originator_uid;
734 uschar *override_local_interfaces = NULL;
735 uschar *override_pid_file_path = NULL;
736
737 BOOL parse_allow_group = FALSE;
738 BOOL parse_found_group = FALSE;
739 uschar *percent_hack_domains = NULL;
740 uschar *pid_file_path = US PID_FILE_PATH
741 "\0<--------------Space to patch pid_file_path->";
742 uschar *pipelining_advertise_hosts = US"*";
743 BOOL preserve_message_logs = FALSE;
744 uschar *primary_hostname = NULL;
745 BOOL print_topbitchars = FALSE;
746 uschar process_info[PROCESS_INFO_SIZE];
747 uschar *process_log_path = NULL;
748 BOOL prod_requires_admin = TRUE;
749
750 uschar *qualify_domain_recipient = NULL;
751 uschar *qualify_domain_sender = NULL;
752 BOOL queue_2stage = FALSE;
753 uschar *queue_domains = NULL;
754 int queue_interval = -1;
755 BOOL queue_list_requires_admin = TRUE;
756 BOOL queue_only = FALSE;
757 uschar *queue_only_file = NULL;
758 int queue_only_load = -1;
759 BOOL queue_only_override = TRUE;
760 BOOL queue_only_policy = FALSE;
761 BOOL queue_run_first_delivery = FALSE;
762 BOOL queue_run_force = FALSE;
763 BOOL queue_run_in_order = FALSE;
764 BOOL queue_run_local = FALSE;
765 int queue_run_max = 5;
766 pid_t queue_run_pid = (pid_t)0;
767 int queue_run_pipe = -1;
768 BOOL queue_running = FALSE;
769 BOOL queue_smtp = FALSE;
770 uschar *queue_smtp_domains = NULL;
771
772 unsigned int random_seed = 0;
773 uschar *raw_active_hostname = NULL;
774 uschar *raw_sender = NULL;
775 uschar **raw_recipients = NULL;
776 int raw_recipients_count = 0;
777
778 int rcpt_count = 0;
779 int rcpt_fail_count = 0;
780 int rcpt_defer_count = 0;
781 gid_t real_gid;
782 uid_t real_uid;
783 BOOL really_exim = TRUE;
784 BOOL receive_call_bombout = FALSE;
785 int receive_linecount = 0;
786 int receive_messagecount = 0;
787 int receive_timeout = 0;
788 int received_count = 0;
789 uschar *received_for = NULL;
790
791 /* This is the default text for Received headers generated by Exim. The
792 date will be automatically added on the end. */
793
794 uschar *received_header_text = US
795 "Received: "
796 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
797 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
798 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
799 "by $primary_hostname "
800 "${if def:received_protocol {with $received_protocol}} "
801 #ifdef SUPPORT_TLS
802 "${if def:tls_cipher {($tls_cipher)\n\t}}"
803 #endif
804 "(Exim $version_number)\n\t"
805 "id $message_id"
806 "${if def:received_for {\n\tfor $received_for}}"
807 "\0<---------------Space to patch received_header_text->";
808
809 int received_headers_max = 30;
810 uschar *received_protocol = NULL;
811 int received_time = 0;
812 uschar *recipient_data = NULL;
813 uschar *recipient_unqualified_hosts = NULL;
814 uschar *recipient_verify_failure = NULL;
815 int recipients_count = 0;
816 BOOL recipients_discarded = FALSE;
817 recipient_item *recipients_list = NULL;
818 int recipients_list_max = 0;
819 int recipients_max = 0;
820 BOOL recipients_max_reject = FALSE;
821 const pcre *regex_AUTH = NULL;
822 const pcre *regex_check_dns_names = NULL;
823 const pcre *regex_From = NULL;
824 const pcre *regex_PIPELINING = NULL;
825 const pcre *regex_SIZE = NULL;
826 const pcre *regex_ismsgid = NULL;
827 #ifdef WITH_CONTENT_SCAN
828 uschar *regex_match_string = NULL;
829 #endif
830 int remote_delivery_count = 0;
831 int remote_max_parallel = 2;
832 uschar *remote_sort_domains = NULL;
833 int retry_data_expire = 7*24*60*60;
834 int retry_interval_max = 24*60*60;
835 int retry_maximum_timeout = 0; /* set from retry config */
836 retry_config *retries = NULL;
837 uschar *return_path = NULL;
838 BOOL return_path_remove = TRUE;
839 int rewrite_existflags = 0;
840 uschar *rfc1413_hosts = US"*";
841 int rfc1413_query_timeout = 30;
842 /* BOOL rfc821_domains = FALSE; <<< on the way out */
843 uid_t root_uid = ROOT_UID;
844
845 router_instance *routers = NULL;
846 router_instance router_defaults = {
847 NULL, /* chain pointer */
848 NULL, /* name */
849 NULL, /* info */
850 NULL, /* private options block pointer */
851 NULL, /* driver name */
852
853 NULL, /* address_data */
854 #ifdef EXPERIMENTAL_BRIGHTMAIL
855 NULL, /* bmi_rule */
856 #endif
857 NULL, /* cannot_route_message */
858 NULL, /* condition */
859 NULL, /* current_directory */
860 NULL, /* debug_string */
861 NULL, /* domains */
862 NULL, /* errors_to */
863 NULL, /* expand_gid */
864 NULL, /* expand_uid */
865 NULL, /* expand_more */
866 NULL, /* expand_unseen */
867 NULL, /* extra_headers */
868 NULL, /* fallback_hosts */
869 NULL, /* home_directory */
870 NULL, /* ignore_target_hosts */
871 NULL, /* local_parts */
872 NULL, /* pass_router_name */
873 NULL, /* prefix */
874 NULL, /* redirect_router_name */
875 NULL, /* remove_headers */
876 NULL, /* require_files */
877 NULL, /* router_home_directory */
878 US"freeze", /* self */
879 NULL, /* senders */
880 NULL, /* suffix */
881 NULL, /* translate_ip_address */
882 NULL, /* transport_name */
883
884 TRUE, /* address_test */
885 #ifdef EXPERIMENTAL_BRIGHTMAIL
886 FALSE, /* bmi_deliver_alternate */
887 FALSE, /* bmi_deliver_default */
888 FALSE, /* bmi_dont_deliver */
889 #endif
890 TRUE, /* expn */
891 FALSE, /* caseful_local_part */
892 FALSE, /* check_local_user */
893 FALSE, /* disable_logging */
894 FALSE, /* fail_verify_recipient */
895 FALSE, /* fail_verify_sender */
896 FALSE, /* gid_set */
897 FALSE, /* initgroups */
898 TRUE_UNSET, /* log_as_local */
899 TRUE, /* more */
900 FALSE, /* pass_on_timeout */
901 FALSE, /* prefix_optional */
902 TRUE, /* repeat_use */
903 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
904 FALSE, /* same_domain_copy_routing */
905 FALSE, /* self_rewrite */
906 FALSE, /* suffix_optional */
907 FALSE, /* verify_only */
908 TRUE, /* verify_recipient */
909 TRUE, /* verify_sender */
910 FALSE, /* uid_set */
911 FALSE, /* unseen */
912
913 self_freeze, /* self_code */
914 (uid_t)(-1), /* uid */
915 (gid_t)(-1), /* gid */
916
917 NULL, /* fallback_hostlist */
918 NULL, /* transport instance */
919 NULL, /* pass_router */
920 NULL /* redirect_router */
921 };
922
923 ip_address_item *running_interfaces = NULL;
924 BOOL running_in_test_harness = FALSE;
925
926 /* This is a weird one. The following string gets patched in the binary by the
927 script that sets up a copy of Exim for running in the test harness. It seems
928 that compilers are now clever, and share constant strings if they can.
929 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
930 make use of the end of this string in order to save space. So the patching then
931 wrecks this. We default this optimization by adding some additional characters
932 onto the end of the string. */
933
934 uschar *running_status = US">>>running<<<" "\0EXTRA";
935
936 int runrc = 0;
937
938 uschar *search_error_message = NULL;
939 BOOL search_find_defer = FALSE;
940 uschar *self_hostname = NULL;
941 uschar *sender_address = NULL;
942 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
943 uschar *sender_address_data = NULL;
944 BOOL sender_address_forced = FALSE;
945 uschar *sender_address_unrewritten = NULL;
946 uschar *sender_data = NULL;
947 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
948 uschar *sender_fullhost = NULL;
949 uschar *sender_helo_name = NULL;
950 uschar **sender_host_aliases = &no_aliases;
951 uschar *sender_host_address = NULL;
952 uschar *sender_host_authenticated = NULL;
953 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
954 uschar *sender_host_name = NULL;
955 int sender_host_port = 0;
956 BOOL sender_host_notsocket = FALSE;
957 BOOL sender_host_unknown = FALSE;
958 uschar *sender_ident = NULL;
959 BOOL sender_local = FALSE;
960 uschar *sender_rcvhost = NULL;
961 BOOL sender_set_untrusted = FALSE;
962 uschar *sender_unqualified_hosts = NULL;
963 uschar *sender_verify_failure = NULL;
964 address_item *sender_verified_list = NULL;
965 address_item *sender_verified_failed = NULL;
966 int sender_verified_rc = -1;
967 BOOL sender_verified_responded = FALSE;
968 volatile BOOL sigalrm_seen = FALSE;
969 uschar **sighup_argv = NULL;
970 int smtp_accept_count = 0;
971 BOOL smtp_accept_keepalive = TRUE;
972 int smtp_accept_max = 20;
973 int smtp_accept_max_nonmail= 10;
974 uschar *smtp_accept_max_nonmail_hosts = US"*";
975 int smtp_accept_max_per_connection = 1000;
976 uschar *smtp_accept_max_per_host = NULL;
977 int smtp_accept_queue = 0;
978 int smtp_accept_queue_per_connection = 10;
979 int smtp_accept_reserve = 0;
980 uschar *smtp_active_hostname = NULL;
981 BOOL smtp_authenticated = FALSE;
982 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
983 "Exim $version_number $tod_full"
984 "\0<---------------Space to patch smtp_banner->";
985 BOOL smtp_batched_input = FALSE;
986 BOOL smtp_check_spool_space = TRUE;
987 uschar *smtp_command_argument = NULL;
988 int smtp_connect_backlog = 20;
989 double smtp_delay_mail = 0.0;
990 double smtp_delay_rcpt = 0.0;
991 BOOL smtp_enforce_sync = TRUE;
992 FILE *smtp_in = NULL;
993 BOOL smtp_input = FALSE;
994 int smtp_load_reserve = -1;
995 int smtp_mailcmd_count = 0;
996 FILE *smtp_out = NULL;
997 uschar *smtp_etrn_command = NULL;
998 BOOL smtp_etrn_serialize = TRUE;
999 int smtp_max_synprot_errors= 3;
1000 int smtp_max_unknown_commands = 3;
1001 uschar *smtp_ratelimit_hosts = NULL;
1002 uschar *smtp_ratelimit_mail = NULL;
1003 uschar *smtp_ratelimit_rcpt = NULL;
1004 uschar *smtp_read_error = US"";
1005 int smtp_receive_timeout = 5*60;
1006 uschar *smtp_reserve_hosts = NULL;
1007 BOOL smtp_return_error_details = FALSE;
1008 int smtp_rlm_base = 0;
1009 double smtp_rlm_factor = 0.0;
1010 int smtp_rlm_limit = 0;
1011 int smtp_rlm_threshold = INT_MAX;
1012 int smtp_rlr_base = 0;
1013 double smtp_rlr_factor = 0.0;
1014 int smtp_rlr_limit = 0;
1015 int smtp_rlr_threshold = INT_MAX;
1016 BOOL smtp_use_pipelining = FALSE;
1017 BOOL smtp_use_size = FALSE;
1018
1019 #ifdef WITH_CONTENT_SCAN
1020 uschar *spamd_address = US"127.0.0.1 783";
1021 uschar *spam_bar = NULL;
1022 uschar *spam_report = NULL;
1023 uschar *spam_score = NULL;
1024 uschar *spam_score_int = NULL;
1025 #endif
1026 #ifdef EXPERIMENTAL_SPF
1027 uschar *spf_header_comment = NULL;
1028 uschar *spf_received = NULL;
1029 uschar *spf_result = NULL;
1030 uschar *spf_smtp_comment = NULL;
1031 #endif
1032
1033 BOOL split_spool_directory = FALSE;
1034 uschar *spool_directory = US SPOOL_DIRECTORY
1035 "\0<--------------Space to patch spool_directory->";
1036 #ifdef EXPERIMENTAL_SRS
1037 uschar *srs_config = NULL;
1038 uschar *srs_db_address = NULL;
1039 uschar *srs_db_key = NULL;
1040 uschar *srs_orig_recipient = NULL;
1041 uschar *srs_orig_sender = NULL;
1042 uschar *srs_recipient = NULL;
1043 uschar *srs_status = NULL;
1044 #endif
1045 int string_datestamp_offset= -1;
1046 BOOL strip_excess_angle_brackets = FALSE;
1047 BOOL strip_trailing_dot = FALSE;
1048 uschar *submission_domain = NULL;
1049 BOOL submission_mode = FALSE;
1050 BOOL synchronous_delivery = FALSE;
1051 BOOL syslog_duplication = TRUE;
1052 int syslog_facility = LOG_MAIL;
1053 uschar *syslog_processname = US"exim";
1054 BOOL syslog_timestamp = TRUE;
1055 uschar *system_filter = NULL;
1056
1057 uschar *system_filter_directory_transport = NULL;
1058 uschar *system_filter_file_transport = NULL;
1059 uschar *system_filter_pipe_transport = NULL;
1060 uschar *system_filter_reply_transport = NULL;
1061
1062 gid_t system_filter_gid = 0;
1063 BOOL system_filter_gid_set = FALSE;
1064 uid_t system_filter_uid = 0;
1065 BOOL system_filter_uid_set = FALSE;
1066 BOOL system_filtering = FALSE;
1067
1068 BOOL tcp_nodelay = TRUE;
1069 int thismessage_size_limit = 0;
1070 int timeout_frozen_after = 0;
1071 BOOL timestamps_utc = FALSE;
1072
1073 transport_instance *transports = NULL;
1074
1075 transport_instance transport_defaults = {
1076 NULL, /* chain pointer */
1077 NULL, /* name */
1078 NULL, /* info */
1079 NULL, /* private options block pointer */
1080 NULL, /* driver name */
1081 NULL, /* setup entry point */
1082 1, /* batch_max */
1083 NULL, /* batch_id */
1084 NULL, /* home_dir */
1085 NULL, /* current_dir */
1086 TRUE, /* multi-domain */
1087 FALSE, /* overrides_hosts */
1088 100, /* max_addresses */
1089 500, /* connection_max_messages */
1090 FALSE, /* deliver_as_creator */
1091 FALSE, /* disable_logging */
1092 FALSE, /* initgroups */
1093 FALSE, /* uid_set */
1094 FALSE, /* gid_set */
1095 (uid_t)(-1), /* uid */
1096 (gid_t)(-1), /* gid */
1097 NULL, /* expand_uid */
1098 NULL, /* expand_gid */
1099 NULL, /* warn_message */
1100 NULL, /* shadow */
1101 NULL, /* shadow_condition */
1102 NULL, /* filter_command */
1103 NULL, /* add_headers */
1104 NULL, /* remove_headers */
1105 NULL, /* return_path */
1106 NULL, /* debug_string */
1107 NULL, /* message_size_limit */
1108 NULL, /* headers_rewrite */
1109 NULL, /* rewrite_rules */
1110 0, /* rewrite_existflags */
1111 300, /* filter_timeout */
1112 FALSE, /* body_only */
1113 FALSE, /* delivery_date_add */
1114 FALSE, /* envelope_to_add */
1115 FALSE, /* headers_only */
1116 FALSE, /* rcpt_include_affixes */
1117 FALSE, /* return_path_add */
1118 FALSE, /* return_output */
1119 FALSE, /* return_fail_output */
1120 FALSE, /* log_output */
1121 FALSE, /* log_fail_output */
1122 FALSE, /* log_defer_output */
1123 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1124 1 nor 0 so can detect unset */
1125 };
1126
1127 int transport_count;
1128 uschar **transport_filter_argv = NULL;
1129 int transport_filter_timeout;
1130 int transport_write_timeout= 0;
1131
1132 tree_node *tree_dns_fails = NULL;
1133 tree_node *tree_duplicates = NULL;
1134 tree_node *tree_nonrecipients = NULL;
1135 tree_node *tree_unusable = NULL;
1136
1137 BOOL trusted_caller = FALSE;
1138 gid_t *trusted_groups = NULL;
1139 uid_t *trusted_users = NULL;
1140 uschar *timezone_string = US TIMEZONE_DEFAULT;
1141
1142 uschar *unknown_login = NULL;
1143 uschar *unknown_username = NULL;
1144 uschar *untrusted_set_sender = NULL;
1145
1146 /* A regex for matching a "From_" line in an incoming message, in the form
1147
1148 From ph10 Fri Jan 5 12:35 GMT 1996
1149
1150 which the "mail" commands send to the MTA (undocumented, of course), or in
1151 the form
1152
1153 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1154
1155 which is apparently used by some UUCPs, despite it not being in RFC 976.
1156 Because of variations in time formats, just match up to the minutes. That
1157 should be sufficient. Examples have been seen of time fields like 12:1:03,
1158 so just require one digit for hours and minutes. The weekday is also absent
1159 in some forms. */
1160
1161 uschar *uucp_from_pattern = US
1162 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1163 "(?:" /* Non-extracting bracket */
1164 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1165 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1166 ")" /* End alternation */
1167 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1168
1169 uschar *uucp_from_sender = US"$1";
1170
1171 uschar *warn_message_file = NULL;
1172 uschar *warnmsg_delay = NULL;
1173 uschar *warnmsg_recipients = NULL;
1174 BOOL write_rejectlog = TRUE;
1175
1176 uschar *version_copyright = US"Copyright (c) University of Cambridge 2005";
1177 uschar *version_date = US"?";
1178 uschar *version_cnumber = US"????";
1179 uschar *version_string = US"?";
1180
1181 int warning_count = 0;
1182
1183 /* End of globals.c */
Unnamed repository; edit this file 'description' to name the repository.