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[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.14 2005/01/12 14:41:12 ph10 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 uschar *dns_again_means_nonexist = NULL;
467 uschar *dns_ipv4_lookup = NULL;
468 int dns_retrans = 0;
469 int dns_retry = 0;
470 uschar *dnslist_domain = NULL;
471 uschar *dnslist_text = NULL;
472 uschar *dnslist_value = NULL;
473 tree_node *domainlist_anchor = NULL;
474 int domainlist_count = 0;
475 BOOL dont_deliver = FALSE;
476 BOOL dot_ends = TRUE;
477 BOOL drop_cr = FALSE; /* No longer used */
478
479 BOOL enable_dollar_recipients = FALSE;
480 BOOL envelope_to_remove = TRUE;
481 int errno_quota = ERRNO_QUOTA;
482 uschar *errors_copy = NULL;
483 int error_handling = ERRORS_SENDER;
484 uschar *errors_reply_to = NULL;
485 int errors_sender_rc = EXIT_FAILURE;
486
487 gid_t exim_gid = EXIM_GID;
488 BOOL exim_gid_set = TRUE; /* This gid is always set */
489 uschar *exim_path = US BIN_DIRECTORY "/exim"
490 "\0<---------------Space to patch exim_path->";
491 uid_t exim_uid = EXIM_UID;
492 BOOL exim_uid_set = TRUE; /* This uid is always set */
493 int expand_forbid = 0;
494 int expand_nlength[EXPAND_MAXN+1];
495 int expand_nmax = -1;
496 uschar *expand_nstring[EXPAND_MAXN+1];
497 BOOL expand_string_forcedfail = FALSE;
498 uschar *expand_string_message;
499 BOOL extract_addresses_remove_arguments = TRUE;
500 uschar *extra_local_interfaces = NULL;
501
502 BOOL fake_reject = FALSE;
503 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).";
504 int filter_n[FILTER_VARIABLE_COUNT];
505 BOOL filter_running = FALSE;
506 int filter_sn[FILTER_VARIABLE_COUNT];
507 int filter_test = FTEST_NONE;
508 uschar *filter_test_sfile = NULL;
509 uschar *filter_test_ufile = NULL;
510 uschar *filter_thisaddress = NULL;
511 int finduser_retries = 0;
512 #ifdef WITH_OLD_DEMIME
513 uschar *found_extension = NULL;
514 #endif
515 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
516 uschar *freeze_tell = NULL;
517 uschar *fudged_queue_times = US"";
518
519 uschar *gecos_name = NULL;
520 uschar *gecos_pattern = NULL;
521 rewrite_rule *global_rewrite_rules = NULL;
522
523 uschar *headers_charset = US HEADERS_CHARSET;
524 int header_insert_maxlen = 64 * 1024;
525 header_line *header_last = NULL;
526 header_line *header_list = NULL;
527 int header_maxsize = HEADER_MAXSIZE;
528 int header_line_maxsize = 0;
529
530 header_name header_names[] = {
531 { US"bcc", 3, TRUE, htype_bcc },
532 { US"cc", 2, TRUE, htype_cc },
533 { US"date", 4, TRUE, htype_date },
534 { US"delivery-date", 13, FALSE, htype_delivery_date },
535 { US"envelope-to", 11, FALSE, htype_envelope_to },
536 { US"from", 4, TRUE, htype_from },
537 { US"message-id", 10, TRUE, htype_id },
538 { US"received", 8, FALSE, htype_received },
539 { US"reply-to", 8, FALSE, htype_reply_to },
540 { US"return-path", 11, FALSE, htype_return_path },
541 { US"sender", 6, TRUE, htype_sender },
542 { US"subject", 7, FALSE, htype_subject },
543 { US"to", 2, TRUE, htype_to }
544 };
545
546 int header_names_size = sizeof(header_names)/sizeof(header_name);
547
548 BOOL header_rewritten = FALSE;
549 uschar *helo_accept_junk_hosts = NULL;
550 uschar *helo_allow_chars = US"";
551 uschar *helo_lookup_domains = US"@ : @[]";
552 uschar *helo_try_verify_hosts = NULL;
553 BOOL helo_verified = FALSE;
554 uschar *helo_verify_hosts = NULL;
555 uschar *hex_digits = US"0123456789abcdef";
556 uschar *hold_domains = NULL;
557 BOOL host_checking = FALSE;
558 BOOL host_checking_callout = FALSE;
559 uschar *host_data = NULL;
560 BOOL host_find_failed_syntax= FALSE;
561 uschar *host_lookup = NULL;
562 BOOL host_lookup_failed = FALSE;
563 uschar *host_lookup_order = US"bydns:byaddr";
564 uschar *host_lookup_msg = US"";
565 int host_number = 0;
566 uschar *host_number_string = NULL;
567 uschar *host_reject_connection = NULL;
568 tree_node *hostlist_anchor = NULL;
569 int hostlist_count = 0;
570 uschar *hosts_treat_as_local = NULL;
571 uschar *hosts_connection_nolog = NULL;
572
573 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
574 BOOL ignore_fromline_local = FALSE;
575 uschar *ignore_fromline_hosts = NULL;
576 uschar *interface_address = NULL;
577 int interface_port = -1;
578 BOOL is_inetd = FALSE;
579
580 int journal_fd = -1;
581
582 int keep_malformed = 4*24*60*60; /* 4 days */
583
584 uschar *eldap_dn = NULL;
585 int load_average = -2;
586 BOOL local_error_message = FALSE;
587 BOOL local_from_check = TRUE;
588 uschar *local_from_prefix = NULL;
589 uschar *local_from_suffix = NULL;
590
591 #if HAVE_IPV6
592 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
593 #else
594 uschar *local_interfaces = US"0.0.0.0";
595 #endif
596
597 uschar *local_scan_data = NULL;
598 int local_scan_timeout = 5*60;
599 BOOL local_sender_retain = FALSE;
600 gid_t local_user_gid = (gid_t)(-1);
601 uid_t local_user_uid = (uid_t)(-1);
602
603 tree_node *localpartlist_anchor= NULL;
604 int localpartlist_count = 0;
605 uschar *log_buffer = NULL;
606 unsigned int log_extra_selector = LX_default;
607 uschar *log_file_path = US LOG_FILE_PATH
608 "\0<--------------Space to patch log_file_path->";
609
610 /* Those log options with L_xxx identifiers have values less than 0x800000 and
611 are the ones that get put into log_write_selector. They can be used in calls to
612 log_write() to test for the bit. The options with LX_xxx identifiers have
613 values greater than 0x80000000 and are put int log_extra_selector (without the
614 top bit). They are never used in calls to log_write(), but are tested
615 independently. This separation became necessary when the number of log
616 selectors was getting close to filling a 32-bit word. */
617
618 bit_table log_options[] = {
619 { US"address_rewrite", L_address_rewrite },
620 { US"all", L_all },
621 { US"all_parents", L_all_parents },
622 { US"arguments", LX_arguments },
623 { US"connection_reject", L_connection_reject },
624 { US"delay_delivery", L_delay_delivery },
625 { US"deliver_time", LX_deliver_time },
626 { US"delivery_size", LX_delivery_size },
627 { US"dnslist_defer", L_dnslist_defer },
628 { US"etrn", L_etrn },
629 { US"host_lookup_failed", L_host_lookup_failed },
630 { US"ident_timeout", LX_ident_timeout },
631 { US"incoming_interface", LX_incoming_interface },
632 { US"incoming_port", LX_incoming_port },
633 { US"lost_incoming_connection", L_lost_incoming_connection },
634 { US"outgoing_port", LX_outgoing_port },
635 { US"queue_run", L_queue_run },
636 { US"queue_time", LX_queue_time },
637 { US"queue_time_overall", LX_queue_time_overall },
638 { US"received_recipients", LX_received_recipients },
639 { US"received_sender", LX_received_sender },
640 { US"rejected_header", LX_rejected_header },
641 { US"rejected_headers", LX_rejected_header },
642 { US"retry_defer", L_retry_defer },
643 { US"return_path_on_delivery", LX_return_path_on_delivery },
644 { US"sender_on_delivery", LX_sender_on_delivery },
645 { US"size_reject", L_size_reject },
646 { US"skip_delivery", L_skip_delivery },
647 { US"smtp_confirmation", LX_smtp_confirmation },
648 { US"smtp_connection", L_smtp_connection },
649 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
650 { US"smtp_protocol_error", L_smtp_protocol_error },
651 { US"smtp_syntax_error", L_smtp_syntax_error },
652 { US"subject", LX_subject },
653 { US"tls_certificate_verified", LX_tls_certificate_verified },
654 { US"tls_cipher", LX_tls_cipher },
655 { US"tls_peerdn", LX_tls_peerdn }
656 };
657
658 int log_options_count = sizeof(log_options)/sizeof(bit_table);
659 unsigned int log_write_selector= L_default;
660 uschar *log_selector_string = NULL;
661 FILE *log_stderr = NULL;
662 BOOL log_testing_mode = FALSE;
663 BOOL log_timezone = FALSE;
664 uschar *login_sender_address = NULL;
665 int lookup_open_max = 25;
666 uschar *lookup_value = NULL;
667
668 macro_item *macros = NULL;
669 uschar *mailstore_basename = NULL;
670 #ifdef WITH_CONTENT_SCAN
671 uschar *malware_name = NULL; /* Virus Name */
672 #endif
673 int max_username_length = 0;
674 int message_age = 0;
675 uschar *message_body = NULL;
676 uschar *message_body_end = NULL;
677 int message_body_size = 0;
678 int message_body_visible = 500;
679 int message_ended = END_NOTSTARTED;
680 uschar *message_headers = NULL;
681 uschar *message_id;
682 uschar *message_id_domain = NULL;
683 uschar *message_id_text = NULL;
684 struct timeval message_id_tv = { 0, 0 };
685 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
686 uschar *message_id_external;
687 int message_linecount = 0;
688 BOOL message_logs = TRUE;
689 int message_size = 0;
690 uschar *message_size_limit = US"50M";
691 uschar message_subdir[2] = { 0, 0 };
692 uschar *message_reference = NULL;
693
694 /* MIME ACL expandables */
695 #ifdef WITH_CONTENT_SCAN
696 int mime_anomaly_level = 0;
697 uschar *mime_anomaly_text = NULL;
698 uschar *mime_boundary = NULL;
699 uschar *mime_charset = NULL;
700 uschar *mime_content_description = NULL;
701 uschar *mime_content_disposition = NULL;
702 uschar *mime_content_id = NULL;
703 unsigned int mime_content_size = 0;
704 uschar *mime_content_transfer_encoding = NULL;
705 uschar *mime_content_type = NULL;
706 uschar *mime_decoded_filename = NULL;
707 uschar *mime_filename = NULL;
708 int mime_is_multipart = 0;
709 int mime_is_coverletter = 0;
710 int mime_is_rfc822 = 0;
711 int mime_part_count = -1;
712 #endif
713
714 BOOL mua_wrapper = FALSE;
715
716 uid_t *never_users = NULL;
717 #ifdef WITH_CONTENT_SCAN
718 BOOL no_mbox_unspool = FALSE;
719 #endif
720 BOOL no_multiline_responses = FALSE;
721
722 uid_t original_euid;
723 gid_t originator_gid;
724 uschar *originator_login = NULL;
725 uschar *originator_name = NULL;
726 uid_t originator_uid;
727 uschar *override_local_interfaces = NULL;
728 uschar *override_pid_file_path = NULL;
729
730 BOOL parse_allow_group = FALSE;
731 BOOL parse_found_group = FALSE;
732 uschar *percent_hack_domains = NULL;
733 uschar *pid_file_path = US PID_FILE_PATH
734 "\0<--------------Space to patch pid_file_path->";
735 uschar *pipelining_advertise_hosts = US"*";
736 BOOL preserve_message_logs = FALSE;
737 uschar *primary_hostname = NULL;
738 BOOL print_topbitchars = FALSE;
739 uschar process_info[PROCESS_INFO_SIZE];
740 uschar *process_log_path = NULL;
741 BOOL prod_requires_admin = TRUE;
742
743 uschar *qualify_domain_recipient = NULL;
744 uschar *qualify_domain_sender = NULL;
745 BOOL queue_2stage = FALSE;
746 uschar *queue_domains = NULL;
747 int queue_interval = -1;
748 BOOL queue_list_requires_admin = TRUE;
749 BOOL queue_only = FALSE;
750 uschar *queue_only_file = NULL;
751 int queue_only_load = -1;
752 BOOL queue_only_override = TRUE;
753 BOOL queue_only_policy = FALSE;
754 BOOL queue_run_first_delivery = FALSE;
755 BOOL queue_run_force = FALSE;
756 BOOL queue_run_in_order = FALSE;
757 BOOL queue_run_local = FALSE;
758 int queue_run_max = 5;
759 pid_t queue_run_pid = (pid_t)0;
760 int queue_run_pipe = -1;
761 BOOL queue_running = FALSE;
762 BOOL queue_smtp = FALSE;
763 uschar *queue_smtp_domains = NULL;
764
765 unsigned int random_seed = 0;
766 uschar *raw_active_hostname = NULL;
767 uschar *raw_sender = NULL;
768 uschar **raw_recipients = NULL;
769 int raw_recipients_count = 0;
770
771 int rcpt_count = 0;
772 int rcpt_fail_count = 0;
773 int rcpt_defer_count = 0;
774 gid_t real_gid;
775 uid_t real_uid;
776 BOOL really_exim = TRUE;
777 BOOL receive_call_bombout = FALSE;
778 int receive_linecount = 0;
779 int receive_messagecount = 0;
780 int receive_timeout = 0;
781 int received_count = 0;
782 uschar *received_for = NULL;
783
784 /* This is the default text for Received headers generated by Exim. The
785 date will be automatically added on the end. */
786
787 uschar *received_header_text = US
788 "Received: "
789 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
790 "{${if def:sender_ident {from $sender_ident }}"
791 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
792 "by $primary_hostname "
793 "${if def:received_protocol {with $received_protocol}} "
794 #ifdef SUPPORT_TLS
795 "${if def:tls_cipher {($tls_cipher)\n\t}}"
796 #endif
797 "(Exim $version_number)\n\t"
798 "id $message_id"
799 "${if def:received_for {\n\tfor $received_for}}"
800 "\0<---------------Space to patch received_header_text->";
801
802 int received_headers_max = 30;
803 uschar *received_protocol = NULL;
804 int received_time = 0;
805 uschar *recipient_data = NULL;
806 uschar *recipient_unqualified_hosts = NULL;
807 uschar *recipient_verify_failure = NULL;
808 int recipients_count = 0;
809 BOOL recipients_discarded = FALSE;
810 recipient_item *recipients_list = NULL;
811 int recipients_list_max = 0;
812 int recipients_max = 0;
813 BOOL recipients_max_reject = FALSE;
814 const pcre *regex_AUTH = NULL;
815 const pcre *regex_check_dns_names = NULL;
816 const pcre *regex_From = NULL;
817 const pcre *regex_PIPELINING = NULL;
818 const pcre *regex_SIZE = NULL;
819 const pcre *regex_ismsgid = NULL;
820 #ifdef WITH_CONTENT_SCAN
821 uschar *regex_match_string = NULL;
822 #endif
823 int remote_delivery_count = 0;
824 int remote_max_parallel = 2;
825 uschar *remote_sort_domains = NULL;
826 int retry_data_expire = 7*24*60*60;
827 int retry_interval_max = 24*60*60;
828 int retry_maximum_timeout = 0; /* set from retry config */
829 retry_config *retries = NULL;
830 uschar *return_path = NULL;
831 BOOL return_path_remove = TRUE;
832 int rewrite_existflags = 0;
833 uschar *rfc1413_hosts = US"*";
834 int rfc1413_query_timeout = 30;
835 /* BOOL rfc821_domains = FALSE; <<< on the way out */
836 uid_t root_uid = ROOT_UID;
837
838 router_instance *routers = NULL;
839 router_instance router_defaults = {
840 NULL, /* chain pointer */
841 NULL, /* name */
842 NULL, /* info */
843 NULL, /* private options block pointer */
844 NULL, /* driver name */
845
846 NULL, /* address_data */
847 #ifdef EXPERIMENTAL_BRIGHTMAIL
848 NULL, /* bmi_rule */
849 #endif
850 NULL, /* cannot_route_message */
851 NULL, /* condition */
852 NULL, /* current_directory */
853 NULL, /* debug_string */
854 NULL, /* domains */
855 NULL, /* errors_to */
856 NULL, /* expand_gid */
857 NULL, /* expand_uid */
858 NULL, /* expand_more */
859 NULL, /* expand_unseen */
860 NULL, /* extra_headers */
861 NULL, /* fallback_hosts */
862 NULL, /* home_directory */
863 NULL, /* ignore_target_hosts */
864 NULL, /* local_parts */
865 NULL, /* pass_router_name */
866 NULL, /* prefix */
867 NULL, /* redirect_router_name */
868 NULL, /* remove_headers */
869 NULL, /* require_files */
870 NULL, /* router_home_directory */
871 US"freeze", /* self */
872 NULL, /* senders */
873 NULL, /* suffix */
874 NULL, /* translate_ip_address */
875 NULL, /* transport_name */
876
877 TRUE, /* address_test */
878 #ifdef EXPERIMENTAL_BRIGHTMAIL
879 FALSE, /* bmi_deliver_alternate */
880 FALSE, /* bmi_deliver_default */
881 FALSE, /* bmi_dont_deliver */
882 #endif
883 TRUE, /* expn */
884 FALSE, /* caseful_local_part */
885 FALSE, /* check_local_user */
886 FALSE, /* disable_logging */
887 FALSE, /* fail_verify_recipient */
888 FALSE, /* fail_verify_sender */
889 FALSE, /* gid_set */
890 FALSE, /* initgroups */
891 TRUE_UNSET, /* log_as_local */
892 TRUE, /* more */
893 FALSE, /* pass_on_timeout */
894 FALSE, /* prefix_optional */
895 TRUE, /* repeat_use */
896 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
897 FALSE, /* same_domain_copy_routing */
898 FALSE, /* self_rewrite */
899 FALSE, /* suffix_optional */
900 FALSE, /* verify_only */
901 TRUE, /* verify_recipient */
902 TRUE, /* verify_sender */
903 FALSE, /* uid_set */
904 FALSE, /* unseen */
905
906 self_freeze, /* self_code */
907 (uid_t)(-1), /* uid */
908 (gid_t)(-1), /* gid */
909
910 NULL, /* fallback_hostlist */
911 NULL, /* transport instance */
912 NULL, /* pass_router */
913 NULL /* redirect_router */
914 };
915
916 ip_address_item *running_interfaces = NULL;
917 BOOL running_in_test_harness = FALSE;
918
919 /* This is a weird one. The following string gets patched in the binary by the
920 script that sets up a copy of Exim for running in the test harness. It seems
921 that compilers are now clever, and share constant strings if they can.
922 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
923 make use of the end of this string in order to save space. So the patching then
924 wrecks this. We default this optimization by adding some additional characters
925 onto the end of the string. */
926
927 uschar *running_status = US">>>running<<<" "\0EXTRA";
928
929 int runrc = 0;
930
931 uschar *search_error_message = NULL;
932 BOOL search_find_defer = FALSE;
933 uschar *self_hostname = NULL;
934 uschar *sender_address = NULL;
935 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
936 uschar *sender_address_data = NULL;
937 BOOL sender_address_forced = FALSE;
938 uschar *sender_address_unrewritten = NULL;
939 uschar *sender_data = NULL;
940 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
941 uschar *sender_fullhost = NULL;
942 uschar *sender_helo_name = NULL;
943 uschar **sender_host_aliases = &no_aliases;
944 uschar *sender_host_address = NULL;
945 uschar *sender_host_authenticated = NULL;
946 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
947 uschar *sender_host_name = NULL;
948 int sender_host_port = 0;
949 BOOL sender_host_notsocket = FALSE;
950 BOOL sender_host_unknown = FALSE;
951 uschar *sender_ident = NULL;
952 BOOL sender_local = FALSE;
953 uschar *sender_rcvhost = NULL;
954 BOOL sender_set_untrusted = FALSE;
955 uschar *sender_unqualified_hosts = NULL;
956 uschar *sender_verify_failure = NULL;
957 address_item *sender_verified_list = NULL;
958 address_item *sender_verified_failed = NULL;
959 int sender_verified_rc = -1;
960 BOOL sender_verified_responded = FALSE;
961 volatile BOOL sigalrm_seen = FALSE;
962 uschar **sighup_argv = NULL;
963 int smtp_accept_count = 0;
964 BOOL smtp_accept_keepalive = TRUE;
965 int smtp_accept_max = 20;
966 int smtp_accept_max_nonmail= 10;
967 uschar *smtp_accept_max_nonmail_hosts = US"*";
968 int smtp_accept_max_per_connection = 1000;
969 uschar *smtp_accept_max_per_host = NULL;
970 int smtp_accept_queue = 0;
971 int smtp_accept_queue_per_connection = 10;
972 int smtp_accept_reserve = 0;
973 uschar *smtp_active_hostname = NULL;
974 BOOL smtp_authenticated = FALSE;
975 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
976 "Exim $version_number $tod_full"
977 "\0<---------------Space to patch smtp_banner->";
978 BOOL smtp_batched_input = FALSE;
979 BOOL smtp_check_spool_space = TRUE;
980 uschar *smtp_command_argument = NULL;
981 int smtp_connect_backlog = 20;
982 double smtp_delay_mail = 0.0;
983 double smtp_delay_rcpt = 0.0;
984 BOOL smtp_enforce_sync = TRUE;
985 FILE *smtp_in = NULL;
986 BOOL smtp_input = FALSE;
987 int smtp_load_reserve = -1;
988 int smtp_mailcmd_count = 0;
989 FILE *smtp_out = NULL;
990 uschar *smtp_etrn_command = NULL;
991 BOOL smtp_etrn_serialize = TRUE;
992 int smtp_max_synprot_errors= 3;
993 int smtp_max_unknown_commands = 3;
994 uschar *smtp_ratelimit_hosts = NULL;
995 uschar *smtp_ratelimit_mail = NULL;
996 uschar *smtp_ratelimit_rcpt = NULL;
997 uschar *smtp_read_error = US"";
998 int smtp_receive_timeout = 5*60;
999 uschar *smtp_reserve_hosts = NULL;
1000 BOOL smtp_return_error_details = FALSE;
1001 int smtp_rlm_base = 0;
1002 double smtp_rlm_factor = 0.0;
1003 int smtp_rlm_limit = 0;
1004 int smtp_rlm_threshold = INT_MAX;
1005 int smtp_rlr_base = 0;
1006 double smtp_rlr_factor = 0.0;
1007 int smtp_rlr_limit = 0;
1008 int smtp_rlr_threshold = INT_MAX;
1009 BOOL smtp_use_pipelining = FALSE;
1010 BOOL smtp_use_size = FALSE;
1011
1012 #ifdef WITH_CONTENT_SCAN
1013 uschar *spamd_address = US"127.0.0.1 783";
1014 uschar *spam_bar = NULL;
1015 uschar *spam_report = NULL;
1016 uschar *spam_score = NULL;
1017 uschar *spam_score_int = NULL;
1018 #endif
1019 #ifdef EXPERIMENTAL_SPF
1020 uschar *spf_header_comment = NULL;
1021 uschar *spf_received = NULL;
1022 uschar *spf_result = NULL;
1023 uschar *spf_smtp_comment = NULL;
1024 #endif
1025
1026 BOOL split_spool_directory = FALSE;
1027 uschar *spool_directory = US SPOOL_DIRECTORY
1028 "\0<--------------Space to patch spool_directory->";
1029 #ifdef EXPERIMENTAL_SRS
1030 uschar *srs_config = NULL;
1031 uschar *srs_db_address = NULL;
1032 uschar *srs_db_key = NULL;
1033 uschar *srs_orig_recipient = NULL;
1034 uschar *srs_orig_sender = NULL;
1035 uschar *srs_recipient = NULL;
1036 uschar *srs_status = NULL;
1037 #endif
1038 int string_datestamp_offset= -1;
1039 BOOL strip_excess_angle_brackets = FALSE;
1040 BOOL strip_trailing_dot = FALSE;
1041 uschar *submission_domain = NULL;
1042 BOOL submission_mode = FALSE;
1043 BOOL synchronous_delivery = FALSE;
1044 BOOL syslog_duplication = TRUE;
1045 int syslog_facility = LOG_MAIL;
1046 uschar *syslog_processname = US"exim";
1047 BOOL syslog_timestamp = TRUE;
1048 uschar *system_filter = NULL;
1049
1050 uschar *system_filter_directory_transport = NULL;
1051 uschar *system_filter_file_transport = NULL;
1052 uschar *system_filter_pipe_transport = NULL;
1053 uschar *system_filter_reply_transport = NULL;
1054
1055 gid_t system_filter_gid = 0;
1056 BOOL system_filter_gid_set = FALSE;
1057 uid_t system_filter_uid = 0;
1058 BOOL system_filter_uid_set = FALSE;
1059 BOOL system_filtering = FALSE;
1060
1061 BOOL tcp_nodelay = TRUE;
1062 int thismessage_size_limit = 0;
1063 int timeout_frozen_after = 0;
1064 BOOL timestamps_utc = FALSE;
1065
1066 transport_instance *transports = NULL;
1067
1068 transport_instance transport_defaults = {
1069 NULL, /* chain pointer */
1070 NULL, /* name */
1071 NULL, /* info */
1072 NULL, /* private options block pointer */
1073 NULL, /* driver name */
1074 NULL, /* setup entry point */
1075 1, /* batch_max */
1076 NULL, /* batch_id */
1077 NULL, /* home_dir */
1078 NULL, /* current_dir */
1079 TRUE, /* multi-domain */
1080 FALSE, /* overrides_hosts */
1081 100, /* max_addresses */
1082 500, /* connection_max_messages */
1083 FALSE, /* deliver_as_creator */
1084 FALSE, /* disable_logging */
1085 FALSE, /* initgroups */
1086 FALSE, /* uid_set */
1087 FALSE, /* gid_set */
1088 (uid_t)(-1), /* uid */
1089 (gid_t)(-1), /* gid */
1090 NULL, /* expand_uid */
1091 NULL, /* expand_gid */
1092 NULL, /* warn_message */
1093 NULL, /* shadow */
1094 NULL, /* shadow_condition */
1095 NULL, /* filter_command */
1096 NULL, /* add_headers */
1097 NULL, /* remove_headers */
1098 NULL, /* return_path */
1099 NULL, /* debug_string */
1100 NULL, /* message_size_limit */
1101 NULL, /* headers_rewrite */
1102 NULL, /* rewrite_rules */
1103 0, /* rewrite_existflags */
1104 300, /* filter_timeout */
1105 FALSE, /* body_only */
1106 FALSE, /* delivery_date_add */
1107 FALSE, /* envelope_to_add */
1108 FALSE, /* headers_only */
1109 FALSE, /* rcpt_include_affixes */
1110 FALSE, /* return_path_add */
1111 FALSE, /* return_output */
1112 FALSE, /* return_fail_output */
1113 FALSE, /* log_output */
1114 FALSE, /* log_fail_output */
1115 FALSE, /* log_defer_output */
1116 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1117 1 nor 0 so can detect unset */
1118 };
1119
1120 int transport_count;
1121 uschar **transport_filter_argv = NULL;
1122 int transport_filter_timeout;
1123 int transport_write_timeout= 0;
1124
1125 tree_node *tree_dns_fails = NULL;
1126 tree_node *tree_duplicates = NULL;
1127 tree_node *tree_nonrecipients = NULL;
1128 tree_node *tree_unusable = NULL;
1129
1130 BOOL trusted_caller = FALSE;
1131 gid_t *trusted_groups = NULL;
1132 uid_t *trusted_users = NULL;
1133 uschar *timezone_string = US TIMEZONE_DEFAULT;
1134
1135 uschar *unknown_login = NULL;
1136 uschar *unknown_username = NULL;
1137 uschar *untrusted_set_sender = NULL;
1138
1139 /* A regex for matching a "From_" line in an incoming message, in the form
1140
1141 From ph10 Fri Jan 5 12:35 GMT 1996
1142
1143 which the "mail" commands send to the MTA (undocumented, of course), or in
1144 the form
1145
1146 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1147
1148 which is apparently used by some UUCPs, despite it not being in RFC 976.
1149 Because of variations in time formats, just match up to the minutes. That
1150 should be sufficient. Examples have been seen of time fields like 12:1:03,
1151 so just require one digit for hours and minutes. The weekday is also absent
1152 in some forms. */
1153
1154 uschar *uucp_from_pattern = US
1155 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1156 "(?:" /* Non-extracting bracket */
1157 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1158 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1159 ")" /* End alternation */
1160 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1161
1162 uschar *uucp_from_sender = US"$1";
1163
1164 uschar *warn_message_file = NULL;
1165 uschar *warnmsg_delay = NULL;
1166 uschar *warnmsg_recipients = NULL;
1167 BOOL write_rejectlog = TRUE;
1168
1169 uschar *version_copyright = US"Copyright (c) University of Cambridge 2004";
1170 uschar *version_date = US"?";
1171 uschar *version_cnumber = US"????";
1172 uschar *version_string = US"?";
1173
1174 int warning_count = 0;
1175
1176 /* End of globals.c */
Unnamed repository; edit this file 'description' to name the repository.