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[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.10 2004/12/17 14:52:44 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 #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 #ifdef WITH_CONTENT_SCAN
503 BOOL fake_reject = FALSE;
504 uschar *fake_reject_text = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legit message, it may still be delivered to the target recipient(s).";
505 #endif
506 int filter_n[FILTER_VARIABLE_COUNT];
507 BOOL filter_running = FALSE;
508 int filter_sn[FILTER_VARIABLE_COUNT];
509 int filter_test = FTEST_NONE;
510 uschar *filter_test_sfile = NULL;
511 uschar *filter_test_ufile = NULL;
512 uschar *filter_thisaddress = NULL;
513 int finduser_retries = 0;
514 #ifdef WITH_OLD_DEMIME
515 uschar *found_extension = NULL;
516 #endif
517 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
518 uschar *freeze_tell = NULL;
519 uschar *fudged_queue_times = US"";
520
521 uschar *gecos_name = NULL;
522 uschar *gecos_pattern = NULL;
523 rewrite_rule *global_rewrite_rules = NULL;
524
525 uschar *headers_charset = US HEADERS_CHARSET;
526 int header_insert_maxlen = 64 * 1024;
527 header_line *header_last = NULL;
528 header_line *header_list = NULL;
529 int header_maxsize = HEADER_MAXSIZE;
530 int header_line_maxsize = 0;
531
532 header_name header_names[] = {
533 { US"bcc", 3, TRUE, htype_bcc },
534 { US"cc", 2, TRUE, htype_cc },
535 { US"date", 4, TRUE, htype_date },
536 { US"delivery-date", 13, FALSE, htype_delivery_date },
537 { US"envelope-to", 11, FALSE, htype_envelope_to },
538 { US"from", 4, TRUE, htype_from },
539 { US"message-id", 10, TRUE, htype_id },
540 { US"received", 8, FALSE, htype_received },
541 { US"reply-to", 8, FALSE, htype_reply_to },
542 { US"return-path", 11, FALSE, htype_return_path },
543 { US"sender", 6, TRUE, htype_sender },
544 { US"subject", 7, FALSE, htype_subject },
545 { US"to", 2, TRUE, htype_to }
546 };
547
548 int header_names_size = sizeof(header_names)/sizeof(header_name);
549
550 BOOL header_rewritten = FALSE;
551 uschar *helo_accept_junk_hosts = NULL;
552 uschar *helo_allow_chars = US"";
553 uschar *helo_lookup_domains = US"@ : @[]";
554 uschar *helo_try_verify_hosts = NULL;
555 BOOL helo_verified = FALSE;
556 uschar *helo_verify_hosts = NULL;
557 uschar *hex_digits = US"0123456789abcdef";
558 uschar *hold_domains = NULL;
559 BOOL host_checking = FALSE;
560 BOOL host_checking_callout = FALSE;
561 uschar *host_data = NULL;
562 BOOL host_find_failed_syntax= FALSE;
563 uschar *host_lookup = NULL;
564 BOOL host_lookup_failed = FALSE;
565 uschar *host_lookup_order = US"bydns:byaddr";
566 uschar *host_lookup_msg = US"";
567 int host_number = 0;
568 uschar *host_number_string = NULL;
569 uschar *host_reject_connection = NULL;
570 tree_node *hostlist_anchor = NULL;
571 int hostlist_count = 0;
572 uschar *hosts_treat_as_local = NULL;
573 uschar *hosts_connection_nolog = NULL;
574
575 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
576 BOOL ignore_fromline_local = FALSE;
577 uschar *ignore_fromline_hosts = NULL;
578 uschar *interface_address = NULL;
579 int interface_port = -1;
580 BOOL is_inetd = FALSE;
581
582 int journal_fd = -1;
583
584 int keep_malformed = 4*24*60*60; /* 4 days */
585
586 uschar *eldap_dn = NULL;
587 int load_average = -2;
588 BOOL local_error_message = FALSE;
589 BOOL local_from_check = TRUE;
590 uschar *local_from_prefix = NULL;
591 uschar *local_from_suffix = NULL;
592
593 #if HAVE_IPV6
594 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
595 #else
596 uschar *local_interfaces = US"0.0.0.0";
597 #endif
598
599 uschar *local_scan_data = NULL;
600 int local_scan_timeout = 5*60;
601 BOOL local_sender_retain = FALSE;
602 gid_t local_user_gid = (gid_t)(-1);
603 uid_t local_user_uid = (uid_t)(-1);
604
605 tree_node *localpartlist_anchor= NULL;
606 int localpartlist_count = 0;
607 uschar *log_buffer = NULL;
608 unsigned int log_extra_selector = LX_default;
609 uschar *log_file_path = US LOG_FILE_PATH
610 "\0<--------------Space to patch log_file_path->";
611
612 /* Those log options with L_xxx identifiers have values less than 0x800000 and
613 are the ones that get put into log_write_selector. They can be used in calls to
614 log_write() to test for the bit. The options with LX_xxx identifiers have
615 values greater than 0x80000000 and are put int log_extra_selector (without the
616 top bit). They are never used in calls to log_write(), but are tested
617 independently. This separation became necessary when the number of log
618 selectors was getting close to filling a 32-bit word. */
619
620 bit_table log_options[] = {
621 { US"address_rewrite", L_address_rewrite },
622 { US"all", L_all },
623 { US"all_parents", L_all_parents },
624 { US"arguments", LX_arguments },
625 { US"connection_reject", L_connection_reject },
626 { US"delay_delivery", L_delay_delivery },
627 { US"deliver_time", LX_deliver_time },
628 { US"delivery_size", LX_delivery_size },
629 { US"dnslist_defer", L_dnslist_defer },
630 { US"etrn", L_etrn },
631 { US"host_lookup_failed", L_host_lookup_failed },
632 { US"ident_timeout", LX_ident_timeout },
633 { US"incoming_interface", LX_incoming_interface },
634 { US"incoming_port", LX_incoming_port },
635 { US"lost_incoming_connection", L_lost_incoming_connection },
636 { US"outgoing_port", LX_outgoing_port },
637 { US"queue_run", L_queue_run },
638 { US"queue_time", LX_queue_time },
639 { US"queue_time_overall", LX_queue_time_overall },
640 { US"received_recipients", LX_received_recipients },
641 { US"received_sender", LX_received_sender },
642 { US"rejected_header", LX_rejected_header },
643 { US"rejected_headers", LX_rejected_header },
644 { US"retry_defer", L_retry_defer },
645 { US"return_path_on_delivery", LX_return_path_on_delivery },
646 { US"sender_on_delivery", LX_sender_on_delivery },
647 { US"size_reject", L_size_reject },
648 { US"skip_delivery", L_skip_delivery },
649 { US"smtp_confirmation", LX_smtp_confirmation },
650 { US"smtp_connection", L_smtp_connection },
651 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
652 { US"smtp_protocol_error", L_smtp_protocol_error },
653 { US"smtp_syntax_error", L_smtp_syntax_error },
654 { US"subject", LX_subject },
655 { US"tls_certificate_verified", LX_tls_certificate_verified },
656 { US"tls_cipher", LX_tls_cipher },
657 { US"tls_peerdn", LX_tls_peerdn }
658 };
659
660 int log_options_count = sizeof(log_options)/sizeof(bit_table);
661 unsigned int log_write_selector= L_default;
662 uschar *log_selector_string = NULL;
663 FILE *log_stderr = NULL;
664 BOOL log_testing_mode = FALSE;
665 BOOL log_timezone = FALSE;
666 uschar *login_sender_address = NULL;
667 int lookup_open_max = 25;
668 uschar *lookup_value = NULL;
669
670 macro_item *macros = NULL;
671 uschar *mailstore_basename = NULL;
672 #ifdef WITH_CONTENT_SCAN
673 uschar *malware_name = NULL; /* Virus Name */
674 #endif
675 int max_username_length = 0;
676 int message_age = 0;
677 uschar *message_body = NULL;
678 uschar *message_body_end = NULL;
679 int message_body_size = 0;
680 int message_body_visible = 500;
681 int message_ended = END_NOTSTARTED;
682 uschar *message_headers = NULL;
683 uschar *message_id;
684 uschar *message_id_domain = NULL;
685 uschar *message_id_text = NULL;
686 struct timeval message_id_tv = { 0, 0 };
687 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
688 uschar *message_id_external;
689 int message_linecount = 0;
690 BOOL message_logs = TRUE;
691 int message_size = 0;
692 uschar *message_size_limit = US"50M";
693 uschar message_subdir[2] = { 0, 0 };
694 uschar *message_reference = NULL;
695
696 /* MIME ACL expandables */
697 #ifdef WITH_CONTENT_SCAN
698 int mime_anomaly_level = 0;
699 uschar *mime_anomaly_text = NULL;
700 uschar *mime_boundary = NULL;
701 uschar *mime_charset = NULL;
702 uschar *mime_content_description = NULL;
703 uschar *mime_content_disposition = NULL;
704 uschar *mime_content_id = NULL;
705 unsigned int mime_content_size = 0;
706 uschar *mime_content_transfer_encoding = NULL;
707 uschar *mime_content_type = NULL;
708 uschar *mime_decoded_filename = NULL;
709 uschar *mime_filename = NULL;
710 int mime_is_multipart = 0;
711 int mime_is_coverletter = 0;
712 int mime_is_rfc822 = 0;
713 int mime_part_count = -1;
714 #endif
715
716 BOOL mua_wrapper = FALSE;
717
718 uid_t *never_users = NULL;
719 #ifdef WITH_CONTENT_SCAN
720 BOOL no_mbox_unspool = FALSE;
721 #endif
722 BOOL no_multiline_responses = FALSE;
723
724 uid_t original_euid;
725 gid_t originator_gid;
726 uschar *originator_login = NULL;
727 uschar *originator_name = NULL;
728 uid_t originator_uid;
729 uschar *override_local_interfaces = NULL;
730 uschar *override_pid_file_path = NULL;
731
732 BOOL parse_allow_group = FALSE;
733 BOOL parse_found_group = FALSE;
734 uschar *percent_hack_domains = NULL;
735 uschar *pid_file_path = US PID_FILE_PATH
736 "\0<--------------Space to patch pid_file_path->";
737 uschar *pipelining_advertise_hosts = US"*";
738 BOOL preserve_message_logs = FALSE;
739 uschar *primary_hostname = NULL;
740 BOOL print_topbitchars = FALSE;
741 uschar process_info[PROCESS_INFO_SIZE];
742 uschar *process_log_path = NULL;
743 BOOL prod_requires_admin = TRUE;
744
745 uschar *qualify_domain_recipient = NULL;
746 uschar *qualify_domain_sender = NULL;
747 BOOL queue_2stage = FALSE;
748 uschar *queue_domains = NULL;
749 int queue_interval = -1;
750 BOOL queue_list_requires_admin = TRUE;
751 BOOL queue_only = FALSE;
752 uschar *queue_only_file = NULL;
753 int queue_only_load = -1;
754 BOOL queue_only_override = TRUE;
755 BOOL queue_only_policy = FALSE;
756 BOOL queue_run_first_delivery = FALSE;
757 BOOL queue_run_force = FALSE;
758 BOOL queue_run_in_order = FALSE;
759 BOOL queue_run_local = FALSE;
760 int queue_run_max = 5;
761 pid_t queue_run_pid = (pid_t)0;
762 int queue_run_pipe = -1;
763 BOOL queue_running = FALSE;
764 BOOL queue_smtp = FALSE;
765 uschar *queue_smtp_domains = NULL;
766
767 unsigned int random_seed = 0;
768 uschar *raw_active_hostname = NULL;
769 uschar *raw_sender = NULL;
770 uschar **raw_recipients = NULL;
771 int raw_recipients_count = 0;
772
773 int rcpt_count = 0;
774 int rcpt_fail_count = 0;
775 int rcpt_defer_count = 0;
776 gid_t real_gid;
777 uid_t real_uid;
778 BOOL really_exim = TRUE;
779 BOOL receive_call_bombout = FALSE;
780 int receive_linecount = 0;
781 int receive_messagecount = 0;
782 int receive_timeout = 0;
783 int received_count = 0;
784 uschar *received_for = NULL;
785
786 /* This is the default text for Received headers generated by Exim. The
787 date will be automatically added on the end. */
788
789 uschar *received_header_text = US
790 "Received: "
791 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
792 "{${if def:sender_ident {from $sender_ident }}"
793 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
794 "by $primary_hostname "
795 "${if def:received_protocol {with $received_protocol}} "
796 #ifdef SUPPORT_TLS
797 "${if def:tls_cipher {($tls_cipher)\n\t}}"
798 #endif
799 "(Exim $version_number)\n\t"
800 "id $message_id"
801 "${if def:received_for {\n\tfor $received_for}}"
802 "\0<---------------Space to patch received_header_text->";
803
804 int received_headers_max = 30;
805 uschar *received_protocol = NULL;
806 int received_time = 0;
807 uschar *recipient_data = NULL;
808 uschar *recipient_unqualified_hosts = NULL;
809 uschar *recipient_verify_failure = NULL;
810 int recipients_count = 0;
811 BOOL recipients_discarded = FALSE;
812 recipient_item *recipients_list = NULL;
813 int recipients_list_max = 0;
814 int recipients_max = 0;
815 BOOL recipients_max_reject = FALSE;
816 const pcre *regex_AUTH = NULL;
817 const pcre *regex_check_dns_names = NULL;
818 const pcre *regex_From = NULL;
819 const pcre *regex_PIPELINING = NULL;
820 const pcre *regex_SIZE = NULL;
821 const pcre *regex_ismsgid = NULL;
822 #ifdef WITH_CONTENT_SCAN
823 uschar *regex_match_string = NULL;
824 #endif
825 int remote_delivery_count = 0;
826 int remote_max_parallel = 2;
827 uschar *remote_sort_domains = NULL;
828 int retry_data_expire = 7*24*60*60;
829 int retry_interval_max = 24*60*60;
830 int retry_maximum_timeout = 0; /* set from retry config */
831 retry_config *retries = NULL;
832 uschar *return_path = NULL;
833 BOOL return_path_remove = TRUE;
834 int rewrite_existflags = 0;
835 uschar *rfc1413_hosts = US"*";
836 int rfc1413_query_timeout = 30;
837 /* BOOL rfc821_domains = FALSE; <<< on the way out */
838 uid_t root_uid = ROOT_UID;
839
840 router_instance *routers = NULL;
841 router_instance router_defaults = {
842 NULL, /* chain pointer */
843 NULL, /* name */
844 NULL, /* info */
845 NULL, /* private options block pointer */
846 NULL, /* driver name */
847
848 NULL, /* address_data */
849 #ifdef EXPERIMENTAL_BRIGHTMAIL
850 NULL, /* bmi_rule */
851 #endif
852 NULL, /* cannot_route_message */
853 NULL, /* condition */
854 NULL, /* current_directory */
855 NULL, /* debug_string */
856 NULL, /* domains */
857 NULL, /* errors_to */
858 NULL, /* expand_gid */
859 NULL, /* expand_uid */
860 NULL, /* expand_more */
861 NULL, /* expand_unseen */
862 NULL, /* extra_headers */
863 NULL, /* fallback_hosts */
864 NULL, /* home_directory */
865 NULL, /* ignore_target_hosts */
866 NULL, /* local_parts */
867 NULL, /* pass_router_name */
868 NULL, /* prefix */
869 NULL, /* redirect_router_name */
870 NULL, /* remove_headers */
871 NULL, /* require_files */
872 NULL, /* router_home_directory */
873 US"freeze", /* self */
874 NULL, /* senders */
875 NULL, /* suffix */
876 NULL, /* translate_ip_address */
877 NULL, /* transport_name */
878
879 TRUE, /* address_test */
880 #ifdef EXPERIMENTAL_BRIGHTMAIL
881 FALSE, /* bmi_deliver_alternate */
882 FALSE, /* bmi_deliver_default */
883 FALSE, /* bmi_dont_deliver */
884 #endif
885 TRUE, /* expn */
886 FALSE, /* caseful_local_part */
887 FALSE, /* check_local_user */
888 FALSE, /* disable_logging */
889 FALSE, /* fail_verify_recipient */
890 FALSE, /* fail_verify_sender */
891 FALSE, /* gid_set */
892 FALSE, /* initgroups */
893 TRUE_UNSET, /* log_as_local */
894 TRUE, /* more */
895 FALSE, /* pass_on_timeout */
896 FALSE, /* prefix_optional */
897 TRUE, /* repeat_use */
898 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
899 FALSE, /* same_domain_copy_routing */
900 FALSE, /* self_rewrite */
901 FALSE, /* suffix_optional */
902 FALSE, /* verify_only */
903 TRUE, /* verify_recipient */
904 TRUE, /* verify_sender */
905 FALSE, /* uid_set */
906 FALSE, /* unseen */
907
908 self_freeze, /* self_code */
909 (uid_t)(-1), /* uid */
910 (gid_t)(-1), /* gid */
911
912 NULL, /* fallback_hostlist */
913 NULL, /* transport instance */
914 NULL, /* pass_router */
915 NULL /* redirect_router */
916 };
917
918 ip_address_item *running_interfaces = NULL;
919 BOOL running_in_test_harness = FALSE;
920
921 /* This is a weird one. The following string gets patched in the binary by the
922 script that sets up a copy of Exim for running in the test harness. It seems
923 that compilers are now clever, and share constant strings if they can.
924 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
925 make use of the end of this string in order to save space. So the patching then
926 wrecks this. We default this optimization by adding some additional characters
927 onto the end of the string. */
928
929 uschar *running_status = US">>>running<<<" "\0EXTRA";
930
931 int runrc = 0;
932
933 uschar *search_error_message = NULL;
934 BOOL search_find_defer = FALSE;
935 uschar *self_hostname = NULL;
936 uschar *sender_address = NULL;
937 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
938 uschar *sender_address_data = NULL;
939 BOOL sender_address_forced = FALSE;
940 uschar *sender_address_unrewritten = NULL;
941 uschar *sender_data = NULL;
942 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
943 uschar *sender_fullhost = NULL;
944 uschar *sender_helo_name = NULL;
945 uschar **sender_host_aliases = &no_aliases;
946 uschar *sender_host_address = NULL;
947 uschar *sender_host_authenticated = NULL;
948 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
949 uschar *sender_host_name = NULL;
950 int sender_host_port = 0;
951 BOOL sender_host_notsocket = FALSE;
952 BOOL sender_host_unknown = FALSE;
953 uschar *sender_ident = NULL;
954 BOOL sender_local = FALSE;
955 uschar *sender_rcvhost = NULL;
956 BOOL sender_set_untrusted = FALSE;
957 uschar *sender_unqualified_hosts = NULL;
958 uschar *sender_verify_failure = NULL;
959 address_item *sender_verified_list = NULL;
960 address_item *sender_verified_failed = NULL;
961 int sender_verified_rc = -1;
962 BOOL sender_verified_responded = FALSE;
963 volatile BOOL sigalrm_seen = FALSE;
964 uschar **sighup_argv = NULL;
965 int smtp_accept_count = 0;
966 BOOL smtp_accept_keepalive = TRUE;
967 int smtp_accept_max = 20;
968 int smtp_accept_max_nonmail= 10;
969 uschar *smtp_accept_max_nonmail_hosts = US"*";
970 int smtp_accept_max_per_connection = 1000;
971 uschar *smtp_accept_max_per_host = NULL;
972 int smtp_accept_queue = 0;
973 int smtp_accept_queue_per_connection = 10;
974 int smtp_accept_reserve = 0;
975 uschar *smtp_active_hostname = NULL;
976 BOOL smtp_authenticated = FALSE;
977 uschar *smtp_banner = US"$primary_hostname ESMTP "
978 "Exim $version_number $tod_full"
979 "\0<---------------Space to patch smtp_banner->";
980 BOOL smtp_batched_input = FALSE;
981 BOOL smtp_check_spool_space = TRUE;
982 uschar *smtp_command_argument = NULL;
983 int smtp_connect_backlog = 20;
984 double smtp_delay_mail = 0.0;
985 double smtp_delay_rcpt = 0.0;
986 BOOL smtp_enforce_sync = TRUE;
987 FILE *smtp_in = NULL;
988 BOOL smtp_input = FALSE;
989 int smtp_load_reserve = -1;
990 int smtp_mailcmd_count = 0;
991 FILE *smtp_out = NULL;
992 uschar *smtp_etrn_command = NULL;
993 BOOL smtp_etrn_serialize = TRUE;
994 int smtp_max_synprot_errors= 3;
995 int smtp_max_unknown_commands = 3;
996 uschar *smtp_ratelimit_hosts = NULL;
997 uschar *smtp_ratelimit_mail = NULL;
998 uschar *smtp_ratelimit_rcpt = NULL;
999 uschar *smtp_read_error = US"";
1000 int smtp_receive_timeout = 5*60;
1001 uschar *smtp_reserve_hosts = NULL;
1002 BOOL smtp_return_error_details = FALSE;
1003 int smtp_rlm_base = 0;
1004 double smtp_rlm_factor = 0.0;
1005 int smtp_rlm_limit = 0;
1006 int smtp_rlm_threshold = INT_MAX;
1007 int smtp_rlr_base = 0;
1008 double smtp_rlr_factor = 0.0;
1009 int smtp_rlr_limit = 0;
1010 int smtp_rlr_threshold = INT_MAX;
1011 BOOL smtp_use_pipelining = FALSE;
1012 BOOL smtp_use_size = FALSE;
1013
1014 #ifdef WITH_CONTENT_SCAN
1015 uschar *spamd_address = US"127.0.0.1 783";
1016 uschar *spam_bar = NULL;
1017 uschar *spam_report = NULL;
1018 uschar *spam_score = NULL;
1019 uschar *spam_score_int = NULL;
1020 #endif
1021 #ifdef EXPERIMENTAL_SPF
1022 uschar *spf_header_comment = NULL;
1023 uschar *spf_received = NULL;
1024 uschar *spf_result = NULL;
1025 uschar *spf_smtp_comment = NULL;
1026 #endif
1027
1028 BOOL split_spool_directory = FALSE;
1029 uschar *spool_directory = US SPOOL_DIRECTORY
1030 "\0<--------------Space to patch spool_directory->";
1031 #ifdef EXPERIMENTAL_SRS
1032 uschar *srs_config = NULL;
1033 uschar *srs_db_address = NULL;
1034 uschar *srs_db_key = NULL;
1035 uschar *srs_orig_recipient = NULL;
1036 uschar *srs_orig_sender = NULL;
1037 uschar *srs_recipient = NULL;
1038 uschar *srs_status = NULL;
1039 #endif
1040 int string_datestamp_offset= -1;
1041 BOOL strip_excess_angle_brackets = FALSE;
1042 BOOL strip_trailing_dot = FALSE;
1043 uschar *submission_domain = NULL;
1044 BOOL submission_mode = FALSE;
1045 BOOL synchronous_delivery = FALSE;
1046 BOOL syslog_duplication = TRUE;
1047 int syslog_facility = LOG_MAIL;
1048 uschar *syslog_processname = US"exim";
1049 BOOL syslog_timestamp = TRUE;
1050 uschar *system_filter = NULL;
1051
1052 uschar *system_filter_directory_transport = NULL;
1053 uschar *system_filter_file_transport = NULL;
1054 uschar *system_filter_pipe_transport = NULL;
1055 uschar *system_filter_reply_transport = NULL;
1056
1057 gid_t system_filter_gid = 0;
1058 BOOL system_filter_gid_set = FALSE;
1059 uid_t system_filter_uid = 0;
1060 BOOL system_filter_uid_set = FALSE;
1061 BOOL system_filtering = FALSE;
1062
1063 BOOL tcp_nodelay = TRUE;
1064 int thismessage_size_limit = 0;
1065 int timeout_frozen_after = 0;
1066 BOOL timestamps_utc = FALSE;
1067
1068 transport_instance *transports = NULL;
1069
1070 transport_instance transport_defaults = {
1071 NULL, /* chain pointer */
1072 NULL, /* name */
1073 NULL, /* info */
1074 NULL, /* private options block pointer */
1075 NULL, /* driver name */
1076 NULL, /* setup entry point */
1077 1, /* batch_max */
1078 NULL, /* batch_id */
1079 NULL, /* home_dir */
1080 NULL, /* current_dir */
1081 TRUE, /* multi-domain */
1082 FALSE, /* overrides_hosts */
1083 100, /* max_addresses */
1084 500, /* connection_max_messages */
1085 FALSE, /* deliver_as_creator */
1086 FALSE, /* disable_logging */
1087 FALSE, /* initgroups */
1088 FALSE, /* uid_set */
1089 FALSE, /* gid_set */
1090 (uid_t)(-1), /* uid */
1091 (gid_t)(-1), /* gid */
1092 NULL, /* expand_uid */
1093 NULL, /* expand_gid */
1094 NULL, /* warn_message */
1095 NULL, /* shadow */
1096 NULL, /* shadow_condition */
1097 NULL, /* filter_command */
1098 NULL, /* add_headers */
1099 NULL, /* remove_headers */
1100 NULL, /* return_path */
1101 NULL, /* debug_string */
1102 NULL, /* message_size_limit */
1103 NULL, /* headers_rewrite */
1104 NULL, /* rewrite_rules */
1105 0, /* rewrite_existflags */
1106 300, /* filter_timeout */
1107 FALSE, /* body_only */
1108 FALSE, /* delivery_date_add */
1109 FALSE, /* envelope_to_add */
1110 FALSE, /* headers_only */
1111 FALSE, /* rcpt_include_affixes */
1112 FALSE, /* return_path_add */
1113 FALSE, /* return_output */
1114 FALSE, /* return_fail_output */
1115 FALSE, /* log_output */
1116 FALSE, /* log_fail_output */
1117 FALSE, /* log_defer_output */
1118 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1119 1 nor 0 so can detect unset */
1120 };
1121
1122 int transport_count;
1123 uschar **transport_filter_argv = NULL;
1124 int transport_filter_timeout;
1125 int transport_write_timeout= 0;
1126
1127 tree_node *tree_dns_fails = NULL;
1128 tree_node *tree_duplicates = NULL;
1129 tree_node *tree_nonrecipients = NULL;
1130 tree_node *tree_unusable = NULL;
1131
1132 BOOL trusted_caller = FALSE;
1133 gid_t *trusted_groups = NULL;
1134 uid_t *trusted_users = NULL;
1135 uschar *timezone_string = US TIMEZONE_DEFAULT;
1136
1137 uschar *unknown_login = NULL;
1138 uschar *unknown_username = NULL;
1139 uschar *untrusted_set_sender = NULL;
1140
1141 /* A regex for matching a "From_" line in an incoming message, in the form
1142
1143 From ph10 Fri Jan 5 12:35 GMT 1996
1144
1145 which the "mail" commands send to the MTA (undocumented, of course), or in
1146 the form
1147
1148 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1149
1150 which is apparently used by some UUCPs, despite it not being in RFC 976.
1151 Because of variations in time formats, just match up to the minutes. That
1152 should be sufficient. Examples have been seen of time fields like 12:1:03,
1153 so just require one digit for hours and minutes. The weekday is also absent
1154 in some forms. */
1155
1156 uschar *uucp_from_pattern = US
1157 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1158 "(?:" /* Non-extracting bracket */
1159 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1160 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1161 ")" /* End alternation */
1162 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1163
1164 uschar *uucp_from_sender = US"$1";
1165
1166 uschar *warn_message_file = NULL;
1167 uschar *warnmsg_delay = NULL;
1168 uschar *warnmsg_recipients = NULL;
1169 BOOL write_rejectlog = TRUE;
1170
1171 uschar *version_copyright = US"Copyright (c) University of Cambridge 2004";
1172 uschar *version_date = US"?";
1173 uschar *version_cnumber = US"????";
1174 uschar *version_string = US"?";
1175
1176 int warning_count = 0;
1177
1178 /* End of globals.c */
Unnamed repository; edit this file 'description' to name the repository.