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Added -dd for daemon debugging.
[exim.git] / src / src / globals.c
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1/* $Cambridge: exim/src/src/globals.c,v 1.6 2004/11/10 10:29:56 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
11that 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
17executable code. It says
18
19Warning: Linking some objects which contain exception information sections
20 and some which do not. This may cause fatal runtime exception handling
21 problems.
22
23As this may cause people to worry needlessly, include a dummy function here
24to stop the message from appearing. Make it reference itself to stop picky
25compilers complaining that it is unused, and put in a dummy argument to stop
26even pickier compilers complaining about infinite loops. */
27
28static void dummy(int x) { dummy(x-1); }
29
30
31/* Generic options for auths, all of which live inside auth_instance
32data blocks and hence have the opt_public flag set. */
33
34optionlist 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
49int optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
50
51/* An empty host aliases list. */
52
53uschar *no_aliases = NULL;
54
55
56/* For comments on these variables, see globals.h. I'm too idle to
57duplicate them here... */
58
59#ifdef EXIM_PERL
60uschar *opt_perl_startup = NULL;
61BOOL opt_perl_at_start = FALSE;
62BOOL opt_perl_started = FALSE;
63#endif
64
65#ifdef LOOKUP_IBASE
66uschar *ibase_servers = NULL;
67#endif
68
69#ifdef LOOKUP_LDAP
70uschar *eldap_default_servers = NULL;
71int eldap_version = -1;
72#endif
73
74#ifdef LOOKUP_MYSQL
75uschar *mysql_servers = NULL;
76#endif
77
78#ifdef LOOKUP_ORACLE
79uschar *oracle_servers = NULL;
80#endif
81
82#ifdef LOOKUP_PGSQL
83uschar *pgsql_servers = NULL;
84#endif
85
86#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
87BOOL move_frozen_messages = FALSE;
88#endif
89
90/* These variables are outside the #ifdef because it keeps the code less
91cluttered in several places (e.g. during logging) if we can always refer to
92them. Also, the tls_ variables are now always visible. */
93
94BOOL tls_active = -1;
95BOOL tls_certificate_verified = FALSE;
96uschar *tls_cipher = NULL;
97BOOL tls_on_connect = FALSE;
98uschar *tls_on_connect_ports = NULL;
99uschar *tls_peerdn = NULL;
100
101#ifdef SUPPORT_TLS
102const pcre *regex_STARTTLS = NULL;
103uschar *tls_advertise_hosts = NULL; /* This is deliberate */
104uschar *tls_certificate = NULL;
105uschar *tls_crl = NULL;
106uschar *tls_dhparam = NULL;
107BOOL tls_offered = FALSE;
108uschar *tls_privatekey = NULL;
109BOOL tls_remember_esmtp = FALSE;
110uschar *tls_require_ciphers = NULL;
111uschar *tls_try_verify_hosts = NULL;
112uschar *tls_verify_certificates= NULL;
113uschar *tls_verify_hosts = NULL;
114#endif
115
116
117/* Input-reading functions for messages, so we can use special ones for
118incoming TCP/IP. The defaults use stdin. We never need these for any
119stand-alone tests. */
120
121#ifndef STAND_ALONE
122int (*receive_getc)(void) = stdin_getc;
123int (*receive_ungetc)(int) = stdin_ungetc;
124int (*receive_feof)(void) = stdin_feof;
125int (*receive_ferror)(void) = stdin_ferror;
126#endif
127
128
129/* List of per-address expansion variables for clearing and saving/restoring
130when verifying one address while routing/verifying another. We have to have
131the size explicit, because it is referenced from more than one module. */
132
133uschar **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
153int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
154
155/* General global variables */
156
157tree_node *acl_anchor = NULL;
158uschar *acl_not_smtp = NULL;
159uschar *acl_smtp_auth = NULL;
160uschar *acl_smtp_connect = NULL;
161uschar *acl_smtp_data = NULL;
162uschar *acl_smtp_etrn = NULL;
163uschar *acl_smtp_expn = NULL;
164uschar *acl_smtp_helo = NULL;
165uschar *acl_smtp_mail = NULL;
166uschar *acl_smtp_mailauth = NULL;
167uschar *acl_smtp_predata = NULL;
168uschar *acl_smtp_quit = NULL;
169uschar *acl_smtp_rcpt = NULL;
170uschar *acl_smtp_starttls = NULL;
171uschar *acl_smtp_vrfy = NULL;
172BOOL acl_temp_details = FALSE;
173uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
174uschar *acl_verify_message = NULL;
175header_line *acl_warn_headers = NULL;
176string_item *acl_warn_logged = NULL;
177
178/* Names of SMTP places for use in ACL error messages, and corresponding SMTP
179error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
180
181uschar *acl_wherenames[] = { US"RCPT",
182 US"MAIL",
183 US"PREDATA",
184 US"DATA",
185 US"non-SMTP",
186 US"AUTH",
187 US"connection",
188 US"ETRN",
189 US"EXPN",
190 US"EHLO or HELO",
191 US"MAILAUTH",
192 US"QUIT",
193 US"STARTTLS",
194 US"VRFY"
195 };
196
197int acl_wherecodes[] = { 550, /* RCPT */
198 550, /* MAIL */
199 550, /* PREDATA */
200 550, /* DATA */
201 0, /* not SMTP; not relevant */
202 503, /* AUTH */
203 550, /* connect */
204 458, /* ETRN */
205 550, /* EXPN */
206 550, /* HELO/EHLO */
207 0, /* MAILAUTH; not relevant */
208 0, /* QUIT; not relevant */
209 550, /* STARTTLS */
210 252 /* VRFY */
211 };
212
213BOOL active_local_from_check = FALSE;
214BOOL active_local_sender_retain = FALSE;
215BOOL accept_8bitmime = FALSE;
216address_item *addr_duplicate = NULL;
217
218address_item address_defaults = {
219 NULL, /* next */
220 NULL, /* parent */
221 NULL, /* first */
222 NULL, /* dupof */
223 NULL, /* start_router */
224 NULL, /* router */
225 NULL, /* transport */
226 NULL, /* host_list */
227 NULL, /* host_used */
228 NULL, /* fallback_hosts */
229 NULL, /* reply */
230 NULL, /* retries */
231 NULL, /* address */
232 NULL, /* unique */
233 NULL, /* cc_local_part */
234 NULL, /* lc_local_part */
235 NULL, /* local_part */
236 NULL, /* prefix */
237 NULL, /* suffix */
238 NULL, /* domain */
239 NULL, /* address_retry_key */
240 NULL, /* domain_retry_key */
241 NULL, /* current_dir */
242 NULL, /* home_dir */
243 NULL, /* message */
244 NULL, /* user_message */
245 NULL, /* onetime_parent */
246 NULL, /* pipe_expandn */
247 NULL, /* return_filename */
248 NULL, /* self_hostname */
249 NULL, /* shadow_message */
250 #ifdef SUPPORT_TLS
251 NULL, /* cipher */
252 NULL, /* peerdn */
253 #endif
254 (uid_t)(-1), /* uid */
255 (gid_t)(-1), /* gid */
256 0, /* flags */
257 { 0 }, /* domain_cache - any larger array should be zeroed */
258 { 0 }, /* localpart_cache - ditto */
259 -1, /* mode */
260 0, /* more_errno */
261 ERRNO_UNKNOWNERROR, /* basic_errno */
262 0, /* child_count */
263 -1, /* return_file */
264 SPECIAL_NONE, /* special_action */
265 DEFER, /* transport_return */
266 { /* fields that are propagated to children */
267 NULL, /* address_data */
268 NULL, /* domain_data */
269 NULL, /* localpart_data */
270 NULL, /* errors_address */
271 NULL, /* extra_headers */
272 NULL, /* remove_headers */
273 }
274};
275
276uschar *address_file = NULL;
277uschar *address_pipe = NULL;
278BOOL address_test_mode = FALSE;
279tree_node *addresslist_anchor = NULL;
280int addresslist_count = 0;
281gid_t *admin_groups = NULL;
282BOOL admin_user = FALSE;
283BOOL allow_domain_literals = FALSE;
284BOOL allow_mx_to_ip = FALSE;
285BOOL allow_unqualified_recipient = TRUE; /* For local messages */
286BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
287BOOL allow_utf8_domains = FALSE;
288uschar *authenticated_id = NULL;
289uschar *authenticated_sender = NULL;
290BOOL authentication_failed = FALSE;
291auth_instance *auths = NULL;
292uschar *auth_advertise_hosts = US"*";
293auth_instance auth_defaults = {
294 NULL, /* chain pointer */
295 NULL, /* name */
296 NULL, /* info */
297 NULL, /* private options block pointer */
298 NULL, /* driver_name */
299 NULL, /* advertise_condition */
300 NULL, /* public_name */
301 NULL, /* set_id */
302 NULL, /* server_mail_auth_condition */
303 NULL, /* server_debug_string */
304 FALSE, /* client */
305 FALSE, /* server */
306 FALSE /* advertised */
307};
308
309uschar *auth_defer_msg = US"reason not recorded";
310uschar *auth_defer_user_msg = US"";
311int auto_thaw = 0;
312
313BOOL background_daemon = TRUE;
314uschar *base62_chars=
315 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
316uschar *bi_command = NULL;
317uschar *big_buffer = NULL;
318int big_buffer_size = BIG_BUFFER_SIZE;
319int body_linecount = 0;
320int body_zerocount = 0;
321uschar *bounce_message_file = NULL;
322uschar *bounce_message_text = NULL;
323uschar *bounce_recipient = NULL;
324BOOL bounce_return_body = TRUE;
325BOOL bounce_return_message = TRUE;
326int bounce_return_size_limit = 100*1024;
327uschar *bounce_sender_authentication = NULL;
328int bsmtp_transaction_linecount = 0;
329
330int callout_cache_domain_positive_expire = 7*24*60*60;
331int callout_cache_domain_negative_expire = 3*60*60;
332int callout_cache_positive_expire = 24*60*60;
333int callout_cache_negative_expire = 2*60*60;
334uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
335uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
336int check_log_inodes = 0;
337int check_log_space = 0;
338int check_spool_inodes = 0;
339int check_spool_space = 0;
340int clmacro_count = 0;
341uschar *clmacros[MAX_CLMACROS];
342BOOL config_changed = FALSE;
343FILE *config_file = NULL;
344uschar *config_filename = NULL;
345int config_lineno = 0;
346#ifdef CONFIGURE_GROUP
347gid_t config_gid = CONFIGURE_GROUP;
348#endif
349uschar *config_main_filelist = US CONFIGURE_FILE
350 "\0<-----------Space to patch configure_filename->";
351uschar *config_main_filename = NULL;
352
353#ifdef CONFIGURE_OWNER
354uid_t config_uid = CONFIGURE_OWNER;
355#endif
356
357int connection_max_messages= -1;
358uschar *continue_hostname = NULL;
359uschar *continue_host_address = NULL;
360BOOL continue_more = FALSE;
361int continue_sequence = 1;
362uschar *continue_transport = NULL;
363
364BOOL daemon_listen = FALSE;
365uschar *daemon_smtp_port = US"smtp";
366BOOL debug_daemon = FALSE;
367int debug_fd = -1;
368FILE *debug_file = NULL;
369bit_table debug_options[] = {
370 { US"acl", D_acl },
371 { US"all", D_all },
372 { US"auth", D_auth },
373 { US"deliver", D_deliver },
374 { US"dns", D_dns },
375 { US"dnsbl", D_dnsbl },
376 { US"exec", D_exec },
377 { US"expand", D_expand },
378 { US"filter", D_filter },
379 { US"hints_lookup", D_hints_lookup },
380 { US"host_lookup", D_host_lookup },
381 { US"ident", D_ident },
382 { US"interface", D_interface },
383 { US"lists", D_lists },
384 { US"load", D_load },
385 { US"local_scan", D_local_scan },
386 { US"lookup", D_lookup },
387 { US"memory", D_memory },
388 { US"pid", D_pid },
389 { US"process_info", D_process_info },
390 { US"queue_run", D_queue_run },
391 { US"receive", D_receive },
392 { US"resolver", D_resolver },
393 { US"retry", D_retry },
394 { US"rewrite", D_rewrite },
395 { US"route", D_route },
396 { US"timestamp", D_timestamp },
397 { US"tls", D_tls },
398 { US"transport", D_transport },
399 { US"uid", D_uid },
400 { US"verify", D_verify }
401};
402int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
403unsigned int debug_selector = 0;
404int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
405uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
406BOOL delivery_date_remove = TRUE;
407uschar *deliver_address_data = NULL;
408int deliver_datafile = -1;
409uschar *deliver_domain = NULL;
410uschar *deliver_domain_data = NULL;
411uschar *deliver_domain_orig = NULL;
412uschar *deliver_domain_parent = NULL;
413BOOL deliver_drop_privilege = FALSE;
414BOOL deliver_firsttime = FALSE;
415BOOL deliver_force = FALSE;
416BOOL deliver_freeze = FALSE;
417int deliver_frozen_at = 0;
418uschar *deliver_home = NULL;
419uschar *deliver_host = NULL;
420uschar *deliver_host_address = NULL;
421uschar *deliver_in_buffer = NULL;
422ino_t deliver_inode = 0;
423uschar *deliver_localpart = NULL;
424uschar *deliver_localpart_data = NULL;
425uschar *deliver_localpart_orig = NULL;
426uschar *deliver_localpart_parent = NULL;
427uschar *deliver_localpart_prefix = NULL;
428uschar *deliver_localpart_suffix = NULL;
429BOOL deliver_force_thaw = FALSE;
430BOOL deliver_manual_thaw = FALSE;
431uschar *deliver_out_buffer = NULL;
432int deliver_queue_load_max = -1;
433address_item *deliver_recipients = NULL;
434uschar *deliver_selectstring = NULL;
435BOOL deliver_selectstring_regex = FALSE;
436uschar *deliver_selectstring_sender = NULL;
437BOOL deliver_selectstring_sender_regex = FALSE;
438BOOL disable_logging = FALSE;
439
440uschar *dns_again_means_nonexist = NULL;
441uschar *dns_ipv4_lookup = NULL;
442int dns_retrans = 0;
443int dns_retry = 0;
444uschar *dnslist_domain = NULL;
445uschar *dnslist_text = NULL;
446uschar *dnslist_value = NULL;
447tree_node *domainlist_anchor = NULL;
448int domainlist_count = 0;
449BOOL dont_deliver = FALSE;
450BOOL dot_ends = TRUE;
451BOOL drop_cr = FALSE; /* No longer used */
452
453BOOL enable_dollar_recipients = FALSE;
454BOOL envelope_to_remove = TRUE;
455int errno_quota = ERRNO_QUOTA;
456uschar *errors_copy = NULL;
457int error_handling = ERRORS_SENDER;
458uschar *errors_reply_to = NULL;
459int errors_sender_rc = EXIT_FAILURE;
460
461gid_t exim_gid = EXIM_GID;
462BOOL exim_gid_set = TRUE; /* This gid is always set */
463uschar *exim_path = US BIN_DIRECTORY "/exim"
464 "\0<---------------Space to patch exim_path->";
465uid_t exim_uid = EXIM_UID;
466BOOL exim_uid_set = TRUE; /* This uid is always set */
467int expand_forbid = 0;
468int expand_nlength[EXPAND_MAXN+1];
469int expand_nmax = -1;
470uschar *expand_nstring[EXPAND_MAXN+1];
471BOOL expand_string_forcedfail = FALSE;
472uschar *expand_string_message;
473BOOL extract_addresses_remove_arguments = TRUE;
474uschar *extra_local_interfaces = NULL;
475
476int filter_n[FILTER_VARIABLE_COUNT];
477BOOL filter_running = FALSE;
478int filter_sn[FILTER_VARIABLE_COUNT];
479uschar *filter_test = NULL;
480uschar *filter_thisaddress = NULL;
481int finduser_retries = 0;
482uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
483uschar *freeze_tell = NULL;
484uschar *fudged_queue_times = US"";
485
486uschar *gecos_name = NULL;
487uschar *gecos_pattern = NULL;
488rewrite_rule *global_rewrite_rules = NULL;
489
490uschar *headers_charset = US HEADERS_CHARSET;
491int header_insert_maxlen = 64 * 1024;
492header_line *header_last = NULL;
493header_line *header_list = NULL;
494int header_maxsize = HEADER_MAXSIZE;
495int header_line_maxsize = 0;
496
497header_name header_names[] = {
498 { US"bcc", 3, TRUE, htype_bcc },
499 { US"cc", 2, TRUE, htype_cc },
500 { US"date", 4, TRUE, htype_date },
501 { US"delivery-date", 13, FALSE, htype_delivery_date },
502 { US"envelope-to", 11, FALSE, htype_envelope_to },
503 { US"from", 4, TRUE, htype_from },
504 { US"message-id", 10, TRUE, htype_id },
505 { US"received", 8, FALSE, htype_received },
506 { US"reply-to", 8, FALSE, htype_reply_to },
507 { US"return-path", 11, FALSE, htype_return_path },
508 { US"sender", 6, TRUE, htype_sender },
509 { US"subject", 7, FALSE, htype_subject },
510 { US"to", 2, TRUE, htype_to }
511};
512
513int header_names_size = sizeof(header_names)/sizeof(header_name);
514
515BOOL header_rewritten = FALSE;
516uschar *helo_accept_junk_hosts = NULL;
517uschar *helo_allow_chars = US"";
518uschar *helo_lookup_domains = US"@ : @[]";
519uschar *helo_try_verify_hosts = NULL;
520BOOL helo_verified = FALSE;
521uschar *helo_verify_hosts = NULL;
522uschar *hex_digits = US"0123456789abcdef";
523uschar *hold_domains = NULL;
524BOOL host_checking = FALSE;
525BOOL host_checking_callout = FALSE;
526uschar *host_data = NULL;
527BOOL host_find_failed_syntax= FALSE;
528uschar *host_lookup = NULL;
529BOOL host_lookup_failed = FALSE;
530uschar *host_lookup_order = US"bydns:byaddr";
531uschar *host_lookup_msg = US"";
532int host_number = 0;
533uschar *host_number_string = NULL;
534uschar *host_reject_connection = NULL;
535tree_node *hostlist_anchor = NULL;
536int hostlist_count = 0;
537uschar *hosts_treat_as_local = NULL;
538uschar *hosts_connection_nolog = NULL;
539
540int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
541BOOL ignore_fromline_local = FALSE;
542uschar *ignore_fromline_hosts = NULL;
543uschar *interface_address = NULL;
544int interface_port = -1;
545BOOL is_inetd = FALSE;
546
547int journal_fd = -1;
548
549int keep_malformed = 4*24*60*60; /* 4 days */
550
551uschar *eldap_dn = NULL;
552int load_average = -2;
553BOOL local_error_message = FALSE;
554BOOL local_from_check = TRUE;
555uschar *local_from_prefix = NULL;
556uschar *local_from_suffix = NULL;
557
558#if HAVE_IPV6
559uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
560#else
561uschar *local_interfaces = US"0.0.0.0";
562#endif
563
564uschar *local_scan_data = NULL;
565int local_scan_timeout = 5*60;
566BOOL local_sender_retain = FALSE;
567gid_t local_user_gid = (gid_t)(-1);
568uid_t local_user_uid = (uid_t)(-1);
569
570tree_node *localpartlist_anchor= NULL;
571int localpartlist_count = 0;
572uschar *log_buffer = NULL;
573unsigned int log_extra_selector = LX_default;
574uschar *log_file_path = US LOG_FILE_PATH
575 "\0<--------------Space to patch log_file_path->";
576
577/* Those log options with L_xxx identifiers have values less than 0x800000 and
578are the ones that get put into log_write_selector. They can be used in calls to
579log_write() to test for the bit. The options with LX_xxx identifiers have
580values greater than 0x80000000 and are put int log_extra_selector (without the
581top bit). They are never used in calls to log_write(), but are tested
582independently. This separation became necessary when the number of log
583selectors was getting close to filling a 32-bit word. */
584
585bit_table log_options[] = {
586 { US"address_rewrite", L_address_rewrite },
587 { US"all", L_all },
588 { US"all_parents", L_all_parents },
589 { US"arguments", LX_arguments },
590 { US"connection_reject", L_connection_reject },
591 { US"delay_delivery", L_delay_delivery },
592 { US"deliver_time", LX_deliver_time },
593 { US"delivery_size", LX_delivery_size },
594 { US"dnslist_defer", L_dnslist_defer },
595 { US"etrn", L_etrn },
596 { US"host_lookup_failed", L_host_lookup_failed },
597 { US"ident_timeout", LX_ident_timeout },
598 { US"incoming_interface", LX_incoming_interface },
599 { US"incoming_port", LX_incoming_port },
600 { US"lost_incoming_connection", L_lost_incoming_connection },
601 { US"outgoing_port", LX_outgoing_port },
602 { US"queue_run", L_queue_run },
603 { US"queue_time", LX_queue_time },
604 { US"received_recipients", LX_received_recipients },
605 { US"received_sender", LX_received_sender },
606 { US"rejected_header", LX_rejected_header },
607 { US"rejected_headers", LX_rejected_header },
608 { US"retry_defer", L_retry_defer },
609 { US"return_path_on_delivery", LX_return_path_on_delivery },
610 { US"sender_on_delivery", LX_sender_on_delivery },
611 { US"size_reject", L_size_reject },
612 { US"skip_delivery", L_skip_delivery },
613 { US"smtp_confirmation", LX_smtp_confirmation },
614 { US"smtp_connection", L_smtp_connection },
615 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
616 { US"smtp_protocol_error", L_smtp_protocol_error },
617 { US"smtp_syntax_error", L_smtp_syntax_error },
618 { US"subject", LX_subject },
619 { US"tls_certificate_verified", LX_tls_certificate_verified },
620 { US"tls_cipher", LX_tls_cipher },
621 { US"tls_peerdn", LX_tls_peerdn }
622};
623
624int log_options_count = sizeof(log_options)/sizeof(bit_table);
625unsigned int log_write_selector= L_default;
626uschar *log_selector_string = NULL;
627FILE *log_stderr = NULL;
628BOOL log_testing_mode = FALSE;
629BOOL log_timezone = FALSE;
630uschar *login_sender_address = NULL;
631int lookup_open_max = 25;
632uschar *lookup_value = NULL;
633
634macro_item *macros = NULL;
635uschar *mailstore_basename = NULL;
636int max_username_length = 0;
637int message_age = 0;
638uschar *message_body = NULL;
639uschar *message_body_end = NULL;
640int message_body_size = 0;
641int message_body_visible = 500;
642int message_ended = END_NOTSTARTED;
643uschar *message_headers = NULL;
644uschar *message_id;
645uschar *message_id_domain = NULL;
646uschar *message_id_text = NULL;
647struct timeval message_id_tv = { 0, 0 };
648uschar message_id_option[MESSAGE_ID_LENGTH + 3];
649uschar *message_id_external;
650int message_linecount = 0;
651BOOL message_logs = TRUE;
652int message_size = 0;
653uschar *message_size_limit = US"50M";
654uschar message_subdir[2] = { 0, 0 };
655uschar *message_reference = NULL;
656BOOL mua_wrapper = FALSE;
657
658uid_t *never_users = NULL;
659BOOL no_multiline_responses = FALSE;
660
661uid_t original_euid;
662gid_t originator_gid;
663uschar *originator_login = NULL;
664uschar *originator_name = NULL;
665uid_t originator_uid;
666uschar *override_local_interfaces = NULL;
667uschar *override_pid_file_path = NULL;
668
669BOOL parse_allow_group = FALSE;
670BOOL parse_found_group = FALSE;
671uschar *percent_hack_domains = NULL;
672uschar *pid_file_path = US PID_FILE_PATH
673 "\0<--------------Space to patch pid_file_path->";
674uschar *pipelining_advertise_hosts = US"*";
675BOOL preserve_message_logs = FALSE;
676uschar *primary_hostname = NULL;
677BOOL print_topbitchars = FALSE;
678uschar process_info[PROCESS_INFO_SIZE];
679uschar *process_log_path = NULL;
680BOOL prod_requires_admin = TRUE;
681
682uschar *qualify_domain_recipient = NULL;
683uschar *qualify_domain_sender = NULL;
684BOOL queue_2stage = FALSE;
685uschar *queue_domains = NULL;
686int queue_interval = -1;
687BOOL queue_list_requires_admin = TRUE;
688BOOL queue_only = FALSE;
689uschar *queue_only_file = NULL;
690int queue_only_load = -1;
691BOOL queue_only_override = TRUE;
692BOOL queue_only_policy = FALSE;
693BOOL queue_run_first_delivery = FALSE;
694BOOL queue_run_force = FALSE;
695BOOL queue_run_in_order = FALSE;
696BOOL queue_run_local = FALSE;
697int queue_run_max = 5;
698pid_t queue_run_pid = (pid_t)0;
699int queue_run_pipe = -1;
700BOOL queue_running = FALSE;
701BOOL queue_smtp = FALSE;
702uschar *queue_smtp_domains = NULL;
703
704unsigned int random_seed = 0;
705uschar *raw_active_hostname = NULL;
706uschar *raw_sender = NULL;
707uschar **raw_recipients = NULL;
708int raw_recipients_count = 0;
709
710int rcpt_count = 0;
711int rcpt_fail_count = 0;
712int rcpt_defer_count = 0;
713gid_t real_gid;
714uid_t real_uid;
715BOOL really_exim = TRUE;
716BOOL receive_call_bombout = FALSE;
717int receive_linecount = 0;
718int receive_messagecount = 0;
719int receive_timeout = 0;
720int received_count = 0;
721uschar *received_for = NULL;
722
723/* This is the default text for Received headers generated by Exim. The
724date will be automatically added on the end. */
725
726uschar *received_header_text = US
727 "Received: "
728 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
729 "{${if def:sender_ident {from $sender_ident }}"
730 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
731 "by $primary_hostname "
732 "${if def:received_protocol {with $received_protocol}} "
733 #ifdef SUPPORT_TLS
734 "${if def:tls_cipher {($tls_cipher)\n\t}}"
735 #endif
736 "(Exim $version_number)\n\t"
737 "id $message_id"
738 "${if def:received_for {\n\tfor $received_for}}"
739 "\0<---------------Space to patch received_header_text->";
740
741int received_headers_max = 30;
742uschar *received_protocol = NULL;
743int received_time = 0;
744uschar *recipient_data = NULL;
745uschar *recipient_unqualified_hosts = NULL;
746uschar *recipient_verify_failure = NULL;
747int recipients_count = 0;
748BOOL recipients_discarded = FALSE;
749recipient_item *recipients_list = NULL;
750int recipients_list_max = 0;
751int recipients_max = 0;
752BOOL recipients_max_reject = FALSE;
753const pcre *regex_AUTH = NULL;
754const pcre *regex_check_dns_names = NULL;
755const pcre *regex_From = NULL;
756const pcre *regex_PIPELINING = NULL;
757const pcre *regex_SIZE = NULL;
758const pcre *regex_ismsgid = NULL;
759int remote_delivery_count = 0;
760int remote_max_parallel = 2;
761uschar *remote_sort_domains = NULL;
762int retry_data_expire = 7*24*60*60;
763int retry_interval_max = 24*60*60;
764int retry_maximum_timeout = 0; /* set from retry config */
765retry_config *retries = NULL;
766uschar *return_path = NULL;
767BOOL return_path_remove = TRUE;
768int rewrite_existflags = 0;
769uschar *rfc1413_hosts = US"*";
770int rfc1413_query_timeout = 30;
771/* BOOL rfc821_domains = FALSE; <<< on the way out */
772uid_t root_uid = ROOT_UID;
773
774router_instance *routers = NULL;
775router_instance router_defaults = {
776 NULL, /* chain pointer */
777 NULL, /* name */
778 NULL, /* info */
779 NULL, /* private options block pointer */
780 NULL, /* driver name */
781
782 NULL, /* address_data */
783 NULL, /* cannot_route_message */
784 NULL, /* condition */
785 NULL, /* current_directory */
786 NULL, /* debug_string */
787 NULL, /* domains */
788 NULL, /* errors_to */
789 NULL, /* expand_gid */
790 NULL, /* expand_uid */
791 NULL, /* expand_more */
792 NULL, /* expand_unseen */
793 NULL, /* extra_headers */
794 NULL, /* fallback_hosts */
795 NULL, /* home_directory */
796 NULL, /* ignore_target_hosts */
797 NULL, /* local_parts */
798 NULL, /* pass_router_name */
799 NULL, /* prefix */
800 NULL, /* redirect_router_name */
801 NULL, /* remove_headers */
802 NULL, /* require_files */
803 NULL, /* router_home_directory */
804 US"freeze", /* self */
805 NULL, /* senders */
806 NULL, /* suffix */
807 NULL, /* translate_ip_address */
808 NULL, /* transport_name */
809
810 TRUE, /* address_test */
811 TRUE, /* expn */
812 FALSE, /* caseful_local_part */
813 FALSE, /* check_local_user */
814 FALSE, /* disable_logging */
815 FALSE, /* fail_verify_recipient */
816 FALSE, /* fail_verify_sender */
817 FALSE, /* gid_set */
818 FALSE, /* initgroups */
819 TRUE_UNSET, /* log_as_local */
820 TRUE, /* more */
821 FALSE, /* pass_on_timeout */
822 FALSE, /* prefix_optional */
823 TRUE, /* repeat_use */
824 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
825 FALSE, /* same_domain_copy_routing */
826 FALSE, /* self_rewrite */
827 FALSE, /* suffix_optional */
828 FALSE, /* verify_only */
829 TRUE, /* verify_recipient */
830 TRUE, /* verify_sender */
831 FALSE, /* uid_set */
832 FALSE, /* unseen */
833
834 self_freeze, /* self_code */
835 (uid_t)(-1), /* uid */
836 (gid_t)(-1), /* gid */
837
838 NULL, /* fallback_hostlist */
839 NULL, /* transport instance */
840 NULL, /* pass_router */
841 NULL /* redirect_router */
842};
843
844ip_address_item *running_interfaces = NULL;
845BOOL running_in_test_harness = FALSE;
846
847/* This is a weird one. The following string gets patched in the binary by the
848script that sets up a copy of Exim for running in the test harness. It seems
849that compilers are now clever, and share constant strings if they can.
850Elsewhere in Exim the string "<" is used. The compiler optimization seems to
851make use of the end of this string in order to save space. So the patching then
852wrecks this. We default this optimization by adding some additional characters
853onto the end of the string. */
854
855uschar *running_status = US">>>running<<<" "\0EXTRA";
856
857int runrc = 0;
858
859uschar *search_error_message = NULL;
860BOOL search_find_defer = FALSE;
861uschar *self_hostname = NULL;
862uschar *sender_address = NULL;
863unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
864uschar *sender_address_data = NULL;
865BOOL sender_address_forced = FALSE;
866uschar *sender_address_unrewritten = NULL;
867uschar *sender_data = NULL;
868unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
869uschar *sender_fullhost = NULL;
870uschar *sender_helo_name = NULL;
871uschar **sender_host_aliases = &no_aliases;
872uschar *sender_host_address = NULL;
873uschar *sender_host_authenticated = NULL;
874unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
875uschar *sender_host_name = NULL;
876int sender_host_port = 0;
877BOOL sender_host_notsocket = FALSE;
878BOOL sender_host_unknown = FALSE;
879uschar *sender_ident = NULL;
880BOOL sender_local = FALSE;
881uschar *sender_rcvhost = NULL;
882BOOL sender_set_untrusted = FALSE;
883uschar *sender_unqualified_hosts = NULL;
884uschar *sender_verify_failure = NULL;
885address_item *sender_verified_list = NULL;
886address_item *sender_verified_failed = NULL;
887int sender_verified_rc = -1;
888BOOL sender_verified_responded = FALSE;
889volatile BOOL sigalrm_seen = FALSE;
890uschar **sighup_argv = NULL;
891int smtp_accept_count = 0;
892BOOL smtp_accept_keepalive = TRUE;
893int smtp_accept_max = 20;
894int smtp_accept_max_nonmail= 10;
895uschar *smtp_accept_max_nonmail_hosts = US"*";
896int smtp_accept_max_per_connection = 1000;
897uschar *smtp_accept_max_per_host = NULL;
898int smtp_accept_queue = 0;
899int smtp_accept_queue_per_connection = 10;
900int smtp_accept_reserve = 0;
901uschar *smtp_active_hostname = NULL;
902BOOL smtp_authenticated = FALSE;
903uschar *smtp_banner = US"$primary_hostname ESMTP "
904 "Exim $version_number $tod_full"
905 "\0<---------------Space to patch smtp_banner->";
906BOOL smtp_batched_input = FALSE;
907BOOL smtp_check_spool_space = TRUE;
908uschar *smtp_command_argument = NULL;
909int smtp_connect_backlog = 20;
910double smtp_delay_mail = 0.0;
911double smtp_delay_rcpt = 0.0;
912BOOL smtp_enforce_sync = TRUE;
913FILE *smtp_in = NULL;
914BOOL smtp_input = FALSE;
915int smtp_load_reserve = -1;
916int smtp_mailcmd_count = 0;
917FILE *smtp_out = NULL;
918uschar *smtp_etrn_command = NULL;
919BOOL smtp_etrn_serialize = TRUE;
920int smtp_max_synprot_errors= 3;
921int smtp_max_unknown_commands = 3;
922uschar *smtp_ratelimit_hosts = NULL;
923uschar *smtp_ratelimit_mail = NULL;
924uschar *smtp_ratelimit_rcpt = NULL;
925uschar *smtp_read_error = US"";
926int smtp_receive_timeout = 5*60;
927uschar *smtp_reserve_hosts = NULL;
928BOOL smtp_return_error_details = FALSE;
929int smtp_rlm_base = 0;
930double smtp_rlm_factor = 0.0;
931int smtp_rlm_limit = 0;
932int smtp_rlm_threshold = INT_MAX;
933int smtp_rlr_base = 0;
934double smtp_rlr_factor = 0.0;
935int smtp_rlr_limit = 0;
936int smtp_rlr_threshold = INT_MAX;
937BOOL smtp_use_pipelining = FALSE;
938BOOL smtp_use_size = FALSE;
939BOOL split_spool_directory = FALSE;
940uschar *spool_directory = US SPOOL_DIRECTORY
941 "\0<--------------Space to patch spool_directory->";
942int string_datestamp_offset= -1;
943BOOL strip_excess_angle_brackets = FALSE;
944BOOL strip_trailing_dot = FALSE;
945uschar *submission_domain = NULL;
946BOOL submission_mode = FALSE;
947BOOL synchronous_delivery = FALSE;
948BOOL syslog_duplication = TRUE;
949int syslog_facility = LOG_MAIL;
950uschar *syslog_processname = US"exim";
951BOOL syslog_timestamp = TRUE;
952uschar *system_filter = NULL;
953
954uschar *system_filter_directory_transport = NULL;
955uschar *system_filter_file_transport = NULL;
956uschar *system_filter_pipe_transport = NULL;
957uschar *system_filter_reply_transport = NULL;
958
959gid_t system_filter_gid = 0;
960BOOL system_filter_gid_set = FALSE;
961uid_t system_filter_uid = 0;
962BOOL system_filter_uid_set = FALSE;
963BOOL system_filtering = FALSE;
964
965BOOL tcp_nodelay = TRUE;
966int thismessage_size_limit = 0;
967int timeout_frozen_after = 0;
968BOOL timestamps_utc = FALSE;
969
970transport_instance *transports = NULL;
971
972transport_instance transport_defaults = {
973 NULL, /* chain pointer */
974 NULL, /* name */
975 NULL, /* info */
976 NULL, /* private options block pointer */
977 NULL, /* driver name */
978 NULL, /* setup entry point */
979 1, /* batch_max */
980 NULL, /* batch_id */
981 NULL, /* home_dir */
982 NULL, /* current_dir */
983 TRUE, /* multi-domain */
984 FALSE, /* overrides_hosts */
985 100, /* max_addresses */
986 500, /* connection_max_messages */
987 FALSE, /* deliver_as_creator */
988 FALSE, /* disable_logging */
989 FALSE, /* initgroups */
990 FALSE, /* uid_set */
991 FALSE, /* gid_set */
992 (uid_t)(-1), /* uid */
993 (gid_t)(-1), /* gid */
994 NULL, /* expand_uid */
995 NULL, /* expand_gid */
996 NULL, /* warn_message */
997 NULL, /* shadow */
998 NULL, /* shadow_condition */
999 NULL, /* filter_command */
1000 NULL, /* add_headers */
1001 NULL, /* remove_headers */
1002 NULL, /* return_path */
1003 NULL, /* debug_string */
1004 NULL, /* message_size_limit */
1005 NULL, /* headers_rewrite */
1006 NULL, /* rewrite_rules */
1007 0, /* rewrite_existflags */
1008 300, /* filter_timeout */
1009 FALSE, /* body_only */
1010 FALSE, /* delivery_date_add */
1011 FALSE, /* envelope_to_add */
1012 FALSE, /* headers_only */
1013 FALSE, /* rcpt_include_affixes */
1014 FALSE, /* return_path_add */
1015 FALSE, /* return_output */
1016 FALSE, /* return_fail_output */
1017 FALSE, /* log_output */
1018 FALSE, /* log_fail_output */
1019 FALSE, /* log_defer_output */
1020 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1021 1 nor 0 so can detect unset */
1022};
1023
1024int transport_count;
1025uschar **transport_filter_argv = NULL;
1026int transport_filter_timeout;
1027int transport_write_timeout= 0;
1028
1029tree_node *tree_dns_fails = NULL;
1030tree_node *tree_duplicates = NULL;
1031tree_node *tree_nonrecipients = NULL;
1032tree_node *tree_unusable = NULL;
1033
1034BOOL trusted_caller = FALSE;
1035gid_t *trusted_groups = NULL;
1036uid_t *trusted_users = NULL;
1037uschar *timezone_string = US TIMEZONE_DEFAULT;
1038
1039uschar *unknown_login = NULL;
1040uschar *unknown_username = NULL;
1041uschar *untrusted_set_sender = NULL;
1042
1043/* A regex for matching a "From_" line in an incoming message, in the form
1044
1045 From ph10 Fri Jan 5 12:35 GMT 1996
1046
1047which the "mail" commands send to the MTA (undocumented, of course), or in
1048the form
1049
1050 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1051
1052which is apparently used by some UUCPs, despite it not being in RFC 976.
1053Because of variations in time formats, just match up to the minutes. That
1054should be sufficient. Examples have been seen of time fields like 12:1:03,
1055so just require one digit for hours and minutes. The weekday is also absent
1056in some forms. */
1057
1058uschar *uucp_from_pattern = US
1059 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1060 "(?:" /* Non-extracting bracket */
1061 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1062 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1063 ")" /* End alternation */
1064 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1065
1066uschar *uucp_from_sender = US"$1";
1067
1068uschar *warn_message_file = NULL;
1069uschar *warnmsg_delay = NULL;
1070uschar *warnmsg_recipients = NULL;
1071BOOL write_rejectlog = TRUE;
1072
1073uschar *version_copyright = US"Copyright (c) University of Cambridge 2004";
1074uschar *version_date = US"?";
1075uschar *version_cnumber = US"????";
1076uschar *version_string = US"?";
1077
1078int warning_count = 0;
1079
1080/* End of globals.c */
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