1 /* $Cambridge: exim/src/src/globals.h,v 1.53 2007/06/14 13:27:11 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2007 */
8 /* See the file NOTICE for conditions of use and distribution. */
10 /* Almost all the global variables are defined together in this one header, so
11 that they are easy to find. However, those that are visible during the
12 compilation of the local_scan() function are defined separately in the
13 local_scan.h header file. */
15 /* First put any specials that are required for some operating systems. */
21 /* Now things that are present only when configured. */
24 extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */
25 extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */
26 extern BOOL opt_perl_started; /* Set once interpreter started */
30 extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
34 extern uschar *ibase_servers;
38 extern uschar *eldap_default_servers; /* List of default servers */
39 extern int eldap_version; /* LDAP version */
43 extern uschar *mysql_servers; /* List of servers and connect info */
47 extern uschar *oracle_servers; /* List of servers and connect info */
51 extern uschar *pgsql_servers; /* List of servers and connect info */
55 extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
58 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
59 extern BOOL move_frozen_messages; /* Get them out of the normal directory */
62 /* These variables are outside the #ifdef because it keeps the code less
63 cluttered in several places (e.g. during logging) if we can always refer to
64 them. Also, the tls_ variables are now always visible. */
66 extern int tls_active; /* fd/socket when in a TLS session */
67 extern BOOL tls_certificate_verified; /* Client certificate verified */
68 extern uschar *tls_cipher; /* Cipher used */
69 extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
70 extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
71 extern uschar *tls_peerdn; /* DN from peer */
74 extern uschar *gnutls_require_mac; /* So some can be avoided */
75 extern uschar *gnutls_require_kx; /* So some can be avoided */
76 extern uschar *gnutls_require_proto; /* So some can be avoided */
77 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
78 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
79 extern uschar *tls_certificate; /* Certificate file */
80 extern uschar *tls_crl; /* CRL File */
81 extern uschar *tls_dhparam; /* DH param file */
82 extern BOOL tls_offered; /* Server offered TLS */
83 extern uschar *tls_privatekey; /* Private key file */
84 extern BOOL tls_remember_esmtp; /* For YAEB */
85 extern uschar *tls_require_ciphers; /* So some can be avoided */
86 extern uschar *tls_try_verify_hosts; /* Optional client verification */
87 extern uschar *tls_verify_certificates;/* Path for certificates to check */
88 extern uschar *tls_verify_hosts; /* Mandatory client verification */
92 /* Input-reading functions for messages, so we can use special ones for
95 extern int (*receive_getc)(void);
96 extern int (*receive_ungetc)(int);
97 extern int (*receive_feof)(void);
98 extern int (*receive_ferror)(void);
99 extern BOOL (*receive_smtp_buffered)(void);
102 /* For clearing, saving, restoring address expansion variables. We have to have
103 the size of this vector set explicitly, because it is referenced from more than
106 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
108 /* General global variables */
110 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
111 extern header_line *acl_added_headers; /* Headers added by an ACL */
112 extern tree_node *acl_anchor; /* Tree of named ACLs */
113 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
114 #ifdef WITH_CONTENT_SCAN
115 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
117 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
118 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
119 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
120 extern uschar *acl_smtp_data; /* ACL run after DATA received */
121 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
122 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
123 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
124 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
125 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
126 #ifdef WITH_CONTENT_SCAN
127 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
129 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
130 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
131 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
132 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
133 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
134 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
135 extern tree_node *acl_var_c; /* ACL connection variables */
136 extern tree_node *acl_var_m; /* ACL messsage variables */
137 extern uschar *acl_verify_message; /* User message for verify failure */
138 extern string_item *acl_warn_logged; /* Logged lines */
139 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
140 extern uschar *acl_wherenames[]; /* Names for messages */
141 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
142 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
143 extern address_item *addr_duplicate; /* Duplicate address list */
144 extern address_item address_defaults; /* Default data for address item */
145 extern uschar *address_file; /* Name of file when delivering to one */
146 extern uschar *address_pipe; /* Pipe command when delivering to one */
147 extern BOOL address_test_mode; /* True for -bt */
148 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
149 extern int addresslist_count; /* Number defined */
150 extern gid_t *admin_groups; /* List of admin groups */
151 extern BOOL admin_user; /* True if caller can do admin */
152 extern BOOL allow_auth_unadvertised;/* As it says */
153 extern BOOL allow_domain_literals; /* As it says */
154 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
155 extern BOOL allow_unqualified_recipient; /* As it says */
156 extern BOOL allow_unqualified_sender; /* Ditto */
157 extern BOOL allow_utf8_domains; /* For experimenting */
158 extern uschar *authenticated_id; /* ID that was authenticated */
159 extern uschar *authenticated_sender; /* From AUTH on MAIL */
160 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
161 extern uschar *auth_advertise_hosts; /* Only advertise to these */
162 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
163 extern auth_instance *auths; /* Chain of instantiated auths */
164 extern auth_instance auth_defaults; /* Default values */
165 extern uschar *auth_defer_msg; /* Error message for log */
166 extern uschar *auth_defer_user_msg; /* Error message for user */
167 extern uschar *auth_vars[]; /* $authn variables */
168 extern int auto_thaw; /* Auto-thaw interval */
169 #ifdef WITH_CONTENT_SCAN
170 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
173 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
174 extern uschar *base62_chars; /* Table of base-62 characters */
175 extern uschar *bi_command; /* Command for -bi option */
176 extern uschar *big_buffer; /* Used for various temp things */
177 extern int big_buffer_size; /* Current size (can expand) */
178 #ifdef EXPERIMENTAL_BRIGHTMAIL
179 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
180 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
181 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
182 extern uschar *bmi_config_file; /* Brightmail config file */
183 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
184 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
185 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
187 extern uschar *bounce_message_file; /* Template file */
188 extern uschar *bounce_message_text; /* One-liner */
189 extern uschar *bounce_recipient; /* When writing an errmsg */
190 extern BOOL bounce_return_body; /* Include body in returned message */
191 extern BOOL bounce_return_message; /* Include message in bounce */
192 extern int bounce_return_size_limit; /* Max amount to return */
193 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
194 extern int bsmtp_transaction_linecount; /* Start of last transaction */
196 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
197 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
198 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
199 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
200 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
201 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
202 extern int check_log_inodes; /* Minimum for message acceptance */
203 extern int check_log_space; /* Minimum for message acceptance */
204 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
205 extern int check_spool_inodes; /* Minimum for message acceptance */
206 extern int check_spool_space; /* Minimum for message acceptance */
207 extern int clmacro_count; /* Number of command line macros */
208 extern uschar *clmacros[]; /* Copy of them, for re-exec */
209 extern int connection_max_messages;/* Max down one SMTP connection */
210 extern BOOL config_changed; /* True if -C used */
211 extern FILE *config_file; /* Configuration file */
212 extern uschar *config_filename; /* Configuration file name */
213 #ifdef CONFIGURE_GROUP
214 extern gid_t config_gid; /* Additional group owner */
216 extern int config_lineno; /* Line number */
217 extern uschar *config_main_filelist; /* List of possible config files */
218 extern uschar *config_main_filename; /* File name actually used */
219 #ifdef CONFIGURE_OWNER
220 extern uid_t config_uid; /* Additional owner */
222 extern uschar *continue_hostname; /* Host for continued delivery */
223 extern uschar *continue_host_address; /* IP address for ditto */
224 extern BOOL continue_more; /* Flag more addresses waiting */
225 extern int continue_sequence; /* Sequence num for continued delivery */
226 extern uschar *continue_transport; /* Transport for continued delivery */
228 extern uschar *csa_status; /* Client SMTP Authorization result */
230 extern BOOL daemon_listen; /* True if listening required */
231 extern uschar *daemon_smtp_port; /* Can be a list of ports */
232 extern int daemon_startup_retries; /* Number of times to retry */
233 extern int daemon_startup_sleep; /* Sleep between retries */
234 extern BOOL debug_daemon; /* Debug the daemon process only */
235 extern int debug_fd; /* The fd for debug_file */
236 extern FILE *debug_file; /* Where to write debugging info */
237 extern bit_table debug_options[]; /* Table of debug options */
238 extern int debug_options_count; /* Size of table */
239 extern int delay_warning[]; /* Times between warnings */
240 extern uschar *delay_warning_condition; /* Condition string for warnings */
241 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
243 extern uschar *deliver_address_data; /* Arbitrary data for an address */
244 extern int deliver_datafile; /* FD for data part of message */
245 extern uschar *deliver_domain; /* The local domain for delivery */
246 extern uschar *deliver_domain_data; /* From domain lookup */
247 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
248 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
249 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
250 extern BOOL deliver_firsttime; /* True for first delivery attempt */
251 extern BOOL deliver_force; /* TRUE if delivery was forced */
252 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
253 extern int deliver_frozen_at; /* Time of freezing */
254 extern uschar *deliver_home; /* Home directory for pipes */
255 extern uschar *deliver_host; /* (First) host for routed local deliveries */
256 /* Remote host for filter */
257 extern uschar *deliver_host_address; /* Address for remote delivery filter */
258 extern uschar *deliver_in_buffer; /* Buffer for copying file */
259 extern ino_t deliver_inode; /* Inode for appendfile */
260 extern uschar *deliver_localpart; /* The local part for delivery */
261 extern uschar *deliver_localpart_data; /* From local part lookup */
262 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
263 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
264 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
265 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
266 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
267 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
268 extern uschar *deliver_out_buffer; /* Buffer for copying file */
269 extern int deliver_queue_load_max; /* Different value for queue running */
270 extern address_item *deliver_recipients; /* Current set of addresses */
271 extern uschar *deliver_selectstring; /* For selecting by recipient */
272 extern BOOL deliver_selectstring_regex; /* String is regex */
273 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
274 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
275 #ifdef WITH_OLD_DEMIME
276 extern int demime_errorlevel; /* Severity of MIME error */
277 extern int demime_ok; /* Nonzero if message has been demimed */
278 extern uschar *demime_reason; /* Reason for broken MIME container */
280 extern BOOL disable_callout_flush; /* Don't flush before callouts */
281 extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
282 #ifdef ENABLE_DISABLE_FSYNC
283 extern BOOL disable_fsync; /* Not for normal use */
285 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
286 extern BOOL disable_logging; /* Disables log writing when TRUE */
288 #ifdef EXPERIMENTAL_DOMAINKEYS
289 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
290 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
291 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
294 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
295 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
296 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
297 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
298 extern int dns_retrans; /* Retransmission time setting */
299 extern int dns_retry; /* Number of retries */
300 extern uschar *dnslist_domain; /* DNS (black) list domain */
301 extern uschar *dnslist_text; /* DNS (black) list text message */
302 extern uschar *dnslist_value; /* DNS (black) list IP address */
303 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
304 extern int domainlist_count; /* Number defined */
305 extern BOOL dont_deliver; /* TRUE for -N option */
306 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
308 /* This option is now a no-opt, retained for compatibility */
309 extern BOOL drop_cr; /* For broken local MUAs */
311 extern uschar *dsn_from; /* From: string for DSNs */
313 extern BOOL enable_dollar_recipients; /* Make $recipients available */
314 extern int envelope_to_remove; /* Remove envelope_to_headers */
315 extern int errno_quota; /* Quota errno in this OS */
316 extern int error_handling; /* Error handling style */
317 extern uschar *errors_copy; /* For taking copies of errors */
318 extern uschar *errors_reply_to; /* Reply-to for error messages */
319 extern int errors_sender_rc; /* Return after message to sender*/
320 extern gid_t exim_gid; /* To be used with exim_uid */
321 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
322 extern uschar *exim_path; /* Path to exec exim */
323 extern uid_t exim_uid; /* Non-root uid for exim */
324 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
325 extern int expand_forbid; /* RDO flags for forbidding things */
326 extern int expand_nlength[]; /* Lengths of numbered strings */
327 extern int expand_nmax; /* Max numerical value */
328 extern uschar *expand_nstring[]; /* Numbered strings */
329 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
330 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
331 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
333 extern int fake_response; /* Fake FAIL or DEFER response to data */
334 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
335 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
336 extern BOOL filter_running; /* TRUE while running a filter */
337 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
338 extern int filter_test; /* Filter test type */
339 extern uschar *filter_test_sfile; /* System filter test file */
340 extern uschar *filter_test_ufile; /* User filter test file */
341 extern uschar *filter_thisaddress; /* For address looping */
342 extern int finduser_retries; /* Retry count for getpwnam() */
343 extern uid_t fixed_never_users[]; /* Can't be overridden */
344 #ifdef WITH_OLD_DEMIME
345 extern uschar *found_extension; /* demime acl condition: file extension found */
347 extern uschar *freeze_tell; /* Message on (some) freezings */
348 extern uschar *freeze_tell_config; /* The configured setting */
349 extern uschar *fudged_queue_times; /* For use in test harness */
351 extern uschar *gecos_name; /* To be expanded when pattern matches */
352 extern uschar *gecos_pattern; /* Pattern to match */
353 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
355 extern int header_insert_maxlen; /* Max for inserting headers */
356 extern int header_maxsize; /* Max total length for header */
357 extern int header_line_maxsize; /* Max for an individual line */
358 extern header_name header_names[]; /* Table of header names */
359 extern int header_names_size; /* Number of entries */
360 extern BOOL header_rewritten; /* TRUE if header changed by router */
361 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
362 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
363 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
364 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
365 extern BOOL helo_verified; /* True if HELO verified */
366 extern BOOL helo_verify_failed; /* True if attempt failed */
367 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
368 extern uschar *hex_digits; /* Used in several places */
369 extern uschar *hold_domains; /* Hold up deliveries to these */
370 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
371 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
372 extern uschar *host_data; /* Obtained from lookup in ACL */
373 extern uschar *host_lookup; /* For which IP addresses are always looked up */
374 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
375 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
376 extern uschar *host_lookup_order; /* Order of host lookup types */
377 extern uschar *host_lookup_msg; /* Text for why it failed */
378 extern int host_number; /* For sharing spools */
379 extern uschar *host_number_string; /* For expanding */
380 extern uschar *host_reject_connection; /* Reject these hosts */
381 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
382 extern int hostlist_count; /* Number defined */
383 extern uschar *hosts_connection_nolog; /* Limits the logging option */
384 extern uschar *hosts_treat_as_local; /* For routing */
386 extern int ignore_bounce_errors_after; /* Keep them for this time. */
387 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
388 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
389 extern BOOL is_inetd; /* True for inetd calls */
390 extern uschar *iterate_item; /* Item from iterate list */
392 extern int journal_fd; /* Fd for journal file */
394 extern int keep_malformed; /* Time to keep malformed messages */
396 extern uschar *eldap_dn; /* Where LDAP DNs are left */
397 extern int load_average; /* Most recently read load average */
398 extern BOOL local_error_message; /* True if handling one of these */
399 extern BOOL local_from_check; /* For adding Sender: (global value) */
400 extern uschar *local_from_prefix; /* Permitted prefixes */
401 extern uschar *local_from_suffix; /* Permitted suffixes */
402 extern uschar *local_interfaces; /* For forcing specific interfaces */
403 extern uschar *local_scan_data; /* Text returned by local_scan() */
404 extern optionlist local_scan_options[];/* Option list for local_scan() */
405 extern int local_scan_options_count; /* Size of the list */
406 extern int local_scan_timeout; /* Timeout for local_scan() */
407 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
408 extern gid_t local_user_gid; /* As it says; may be set in routers */
409 extern uid_t local_user_uid; /* As it says; may be set in routers */
410 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
411 extern int localpartlist_count; /* Number defined */
412 extern uschar *log_buffer; /* For constructing log entries */
413 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
414 extern uschar *log_file_path; /* If unset, use default */
415 extern bit_table log_options[]; /* Table of options */
416 extern int log_options_count; /* Size of table */
417 extern int log_reject_target; /* Target log for ACL rejections */
418 extern uschar *log_selector_string; /* As supplied in the config */
419 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
420 extern BOOL log_testing_mode; /* TRUE in various testing modes */
421 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
422 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
423 extern uschar *login_sender_address; /* The actual sender address */
424 extern lookup_info lookup_list[]; /* Vector of available lookups */
425 extern int lookup_list_count; /* Number of entries in the list */
426 extern int lookup_open_max; /* Max lookup files to cache */
427 extern uschar *lookup_value; /* Value looked up from file */
429 extern macro_item *macros; /* Configuration macros */
430 extern uschar *mailstore_basename; /* For mailstore deliveries */
431 #ifdef WITH_CONTENT_SCAN
432 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
434 extern int max_username_length; /* For systems with broken getpwnam() */
435 extern int message_age; /* In seconds */
436 extern uschar *message_body; /* Start of message body for filter */
437 extern uschar *message_body_end; /* End of message body for filter */
438 extern int message_body_size; /* Sic */
439 extern int message_body_visible; /* Amount visible in message_body */
440 extern int message_ended; /* State of message reading and how ended */
441 extern uschar *message_headers; /* When built */
442 extern uschar message_id_option[]; /* -E<message-id> for use as option */
443 extern uschar *message_id_external; /* External form of following */
444 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
445 extern uschar *message_id_text; /* Expanded to form message_id */
446 extern struct timeval message_id_tv; /* Time used to create last message_id */
447 extern int message_linecount; /* As it says */
448 extern BOOL message_logs; /* TRUE to write message logs */
449 extern int message_size; /* Size of message */
450 extern uschar *message_size_limit; /* As it says */
451 extern uschar message_subdir[]; /* Subdirectory for messages */
452 extern uschar *message_reference; /* Reference for error messages */
454 /* MIME ACL expandables */
455 #ifdef WITH_CONTENT_SCAN
456 extern int mime_anomaly_level;
457 extern uschar *mime_anomaly_text;
458 extern uschar *mime_boundary;
459 extern uschar *mime_charset;
460 extern uschar *mime_content_description;
461 extern uschar *mime_content_disposition;
462 extern uschar *mime_content_id;
463 extern unsigned int mime_content_size;
464 extern uschar *mime_content_transfer_encoding;
465 extern uschar *mime_content_type;
466 extern uschar *mime_decoded_filename;
467 extern uschar *mime_filename;
468 extern int mime_is_multipart;
469 extern int mime_is_coverletter;
470 extern int mime_is_rfc822;
471 extern int mime_part_count;
474 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
476 extern uid_t *never_users; /* List of uids never to be used */
477 #ifdef WITH_CONTENT_SCAN
478 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
480 extern BOOL no_multiline_responses; /* For broken clients */
482 extern optionlist optionlist_auths[]; /* These option lists are made */
483 extern int optionlist_auths_size; /* global so that readconf can */
484 extern optionlist optionlist_routers[]; /* see them for printing out */
485 extern int optionlist_routers_size; /* the options. */
486 extern optionlist optionlist_transports[];
487 extern int optionlist_transports_size;
489 extern uid_t original_euid; /* Original effective uid */
490 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
491 extern uschar *originator_login; /* Login of same */
492 extern uschar *originator_name; /* Full name of same */
493 extern uid_t originator_uid; /* Uid of ditto */
494 extern uschar *override_local_interfaces; /* Value of -oX argument */
495 extern uschar *override_pid_file_path; /* Value of -oP argument */
497 extern BOOL parse_allow_group; /* Allow group syntax */
498 extern BOOL parse_found_group; /* In the middle of a group */
499 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
500 extern uschar *pid_file_path; /* For writing daemon pids */
501 extern uschar *pipelining_advertise_hosts; /* As it says */
502 extern BOOL pipelining_enable; /* As it says */
503 extern BOOL preserve_message_logs; /* Save msglog files */
504 extern uschar *primary_hostname; /* Primary name of this computer */
505 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
506 extern uschar process_info[]; /* For SIGUSR1 output */
507 extern uschar *process_log_path; /* Alternate path */
508 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
509 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
510 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
511 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
513 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
514 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
515 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
516 extern uschar *queue_domains; /* Queue these domains */
517 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
518 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
519 extern BOOL queue_run_force; /* TRUE to force during queue run */
520 extern BOOL queue_run_local; /* Local deliveries only in queue run */
521 extern BOOL queue_running; /* TRUE for queue running process and */
522 /* immediate children */
523 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
524 extern int queue_run_pipe; /* Pipe for synchronizing */
525 extern int queue_interval; /* Queue running interval */
526 extern BOOL queue_only; /* TRUE to disable immediate delivery */
527 extern int queue_only_load; /* Max load before auto-queue */
528 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
529 extern BOOL queue_only_override; /* Allow override from command line */
530 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
531 extern BOOL queue_run_in_order; /* As opposed to random */
532 extern int queue_run_max; /* Max queue runners */
533 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
534 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
536 extern unsigned int random_seed; /* Seed for random numbers */
537 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
538 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
539 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
540 extern uschar *raw_active_hostname; /* Pre-expansion */
541 extern uschar *raw_sender; /* Before rewriting */
542 extern uschar **raw_recipients; /* Before rewriting */
543 extern int raw_recipients_count;
544 extern int rcpt_count; /* Count of RCPT commands in a message */
545 extern int rcpt_fail_count; /* Those that got 5xx */
546 extern int rcpt_defer_count; /* Those that got 4xx */
547 extern gid_t real_gid; /* Real gid */
548 extern uid_t real_uid; /* Real user running program */
549 extern BOOL really_exim; /* FALSE in utilities */
550 extern BOOL receive_call_bombout; /* Flag for crashing log */
551 extern int receive_linecount; /* Mainly for BSMTP errors */
552 extern int receive_messagecount; /* Mainly for BSMTP errors */
553 extern int receive_timeout; /* For non-SMTP acceptance */
554 extern int received_count; /* Count of Received: headers */
555 extern uschar *received_for; /* For "for" field */
556 extern uschar *received_header_text; /* Definition of Received: header */
557 extern int received_headers_max; /* Max count of Received: headers */
558 extern int received_time; /* Time the message was received */
559 extern uschar *recipient_data; /* lookup data for recipients */
560 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
561 extern uschar *recipient_verify_failure; /* What went wrong */
562 extern BOOL recipients_discarded; /* By an ACL */
563 extern int recipients_list_max; /* Maximum number fitting in list */
564 extern int recipients_max; /* Max permitted */
565 extern int recipients_max_reject; /* If TRUE, reject whole message */
566 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
567 extern const pcre *regex_check_dns_names; /* For DNS name checking */
568 extern const pcre *regex_From; /* For recognizing "From_" lines */
569 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
570 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
571 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
572 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
573 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
574 #ifdef WITH_CONTENT_SCAN
575 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
577 extern int remote_delivery_count; /* Number of remote addresses */
578 extern int remote_max_parallel; /* Maximum parallel delivery */
579 extern uschar *remote_sort_domains; /* Remote domain sorting order */
580 extern retry_config *retries; /* Chain of retry config information */
581 extern int retry_data_expire; /* When to expire retry data */
582 extern int retry_interval_max; /* Absolute maximum */
583 extern int retry_maximum_timeout; /* The maximum timeout */
584 extern uschar *return_path; /* Return path for a message */
585 extern BOOL return_path_remove; /* Remove return-path headers */
586 extern int rewrite_existflags; /* Indicate which headers have rewrites */
587 extern uschar *rfc1413_hosts; /* RFC hosts */
588 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
589 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
590 extern uid_t root_uid; /* The uid for root */
591 extern router_info routers_available[];/* Vector of available routers */
592 extern router_instance *routers; /* Chain of instantiated routers */
593 extern router_instance router_defaults;/* Default values */
594 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
595 extern ip_address_item *running_interfaces; /* Host's running interfaces */
596 extern uschar *running_status; /* Flag string for testing */
597 extern int runrc; /* rc from ${run} */
599 extern uschar *search_error_message; /* Details of lookup problem */
600 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
601 extern uschar *self_hostname; /* Self host after routing->directors */
602 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
603 extern uschar *sender_address_data; /* address_data from sender verify */
604 extern BOOL sender_address_forced; /* Set by -f */
605 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
606 extern uschar *sender_data; /* lookup result for senders */
607 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
608 extern uschar *sender_fullhost; /* Sender host name + address */
609 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
610 extern uschar **sender_host_aliases; /* Points to list of alias names */
611 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
612 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
613 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
614 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
615 extern BOOL sender_local; /* TRUE for local senders */
616 extern BOOL sender_name_forced; /* Set by -F */
617 extern uschar *sender_rate; /* Sender rate computed by ACL */
618 extern uschar *sender_rate_limit; /* Configured rate limit */
619 extern uschar *sender_rate_period; /* Configured smoothing period */
620 extern uschar *sender_rcvhost; /* Host data for Received: */
621 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
622 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
623 extern uschar *sender_verify_failure; /* What went wrong */
624 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
625 extern address_item *sender_verified_failed; /* The one that caused denial */
626 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
627 extern int sending_port; /* Port of outgoing interface */
628 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
629 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
630 extern int smtp_accept_count; /* Count of connections */
631 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
632 extern int smtp_accept_max; /* Max SMTP connections */
633 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
634 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
635 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
636 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
637 extern int smtp_accept_queue; /* Queue after so many connections */
638 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
639 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
640 extern uschar *smtp_active_hostname; /* Hostname for this message */
641 extern BOOL smtp_authenticated; /* Sending client has authenticated */
642 extern uschar *smtp_banner; /* Banner string (to be expanded) */
643 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
644 extern int smtp_ch_index; /* Index in smtp_connection_had */
645 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
646 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
647 extern time_t smtp_connection_start; /* Start time of SMTP connection */
648 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
649 extern int smtp_connect_backlog; /* Max backlog permitted */
650 extern double smtp_delay_mail; /* Current MAIL delay */
651 extern double smtp_delay_rcpt; /* Current RCPT delay */
652 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
653 extern uschar *smtp_etrn_command; /* Command to run */
654 extern BOOL smtp_etrn_serialize; /* Only one at once */
655 extern FILE *smtp_in; /* Incoming SMTP input file */
656 extern int smtp_load_reserve; /* Only from reserved if load > this */
657 extern int smtp_mailcmd_count; /* Count of MAIL commands */
658 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
659 extern int smtp_max_unknown_commands; /* As it says */
660 extern FILE *smtp_out; /* Incoming SMTP output file */
661 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
662 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
663 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
664 extern uschar *smtp_read_error; /* Message for SMTP input error */
665 extern int smtp_receive_timeout; /* Applies to each received line */
666 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
667 extern BOOL smtp_return_error_details; /* TRUE to return full info */
668 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
669 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
670 extern int smtp_rlm_limit; /* Max delay */
671 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
672 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
673 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
674 extern int smtp_rlr_limit; /* Max delay */
675 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
676 extern BOOL smtp_use_pipelining; /* Global for passed connections */
677 extern BOOL smtp_use_size; /* Global for passed connections */
679 #ifdef WITH_CONTENT_SCAN
680 extern uschar *spamd_address; /* address for the spamassassin daemon */
681 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
682 extern uschar *spam_report; /* the spamd report (multiline) */
683 extern uschar *spam_score; /* the spam score (float) */
684 extern uschar *spam_score_int; /* spam_score * 10 (int) */
686 #ifdef EXPERIMENTAL_SPF
687 extern uschar *spf_header_comment; /* spf header comment */
688 extern uschar *spf_received; /* SPF-Received: header */
689 extern uschar *spf_result; /* spf result in string form */
690 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
692 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
693 extern uschar *spool_directory; /* Name of spool directory */
694 #ifdef EXPERIMENTAL_SRS
695 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
696 extern uschar *srs_db_address; /* SRS db address */
697 extern uschar *srs_db_key; /* SRS db key */
698 extern int srs_hashlength; /* SRS hash length */
699 extern int srs_hashmin; /* SRS minimum hash length */
700 extern int srs_maxage; /* SRS max age */
701 extern uschar *srs_orig_sender; /* SRS original sender */
702 extern uschar *srs_orig_recipient; /* SRS original recipient */
703 extern uschar *srs_recipient; /* SRS recipient */
704 extern uschar *srs_secrets; /* SRS secrets list */
705 extern uschar *srs_status; /* SRS staus */
706 extern BOOL srs_usehash; /* SRS use hash flag */
707 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
709 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
710 extern int string_datestamp_offset;/* After insertion by string_format */
711 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
712 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
713 extern uschar *submission_domain; /* Domain for submission mode */
714 extern BOOL submission_mode; /* Can be forced from ACL */
715 extern uschar *submission_name; /* User name set from ACL */
716 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
717 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
718 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
719 extern int syslog_facility; /* As defined by Syslog.h */
720 extern uschar *syslog_processname; /* 'ident' param to openlog() */
721 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
722 extern uschar *system_filter; /* Name of system filter file */
724 extern uschar *system_filter_directory_transport; /* Transports for the */
725 extern uschar *system_filter_file_transport; /* system filter */
726 extern uschar *system_filter_pipe_transport;
727 extern uschar *system_filter_reply_transport;
729 extern gid_t system_filter_gid; /* Gid for running system filter */
730 extern BOOL system_filter_gid_set; /* TRUE if gid set */
731 extern uid_t system_filter_uid; /* Uid for running system filter */
732 extern BOOL system_filter_uid_set; /* TRUE if uid set */
733 extern BOOL system_filtering; /* TRUE when running system filter */
735 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
736 extern int thismessage_size_limit; /* Limit for this message */
737 extern int timeout_frozen_after; /* Max time to keep frozen messages */
738 extern BOOL timestamps_utc; /* Use UTC for all times */
739 extern int transport_count; /* Count of bytes transported */
740 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
741 extern int transport_filter_timeout; /* Timeout for same */
742 extern BOOL transport_filter_timed_out; /* True if it did */
744 extern transport_info transports_available[]; /* Vector of available transports */
745 extern transport_instance *transports; /* Chain of instantiated transports */
746 extern transport_instance transport_defaults; /* Default values */
748 extern int transport_write_timeout;/* Set to time out individual writes */
750 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
751 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
752 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
753 extern tree_node *tree_unusable; /* Tree of unusable addresses */
755 extern BOOL trusted_caller; /* Caller is trusted */
756 extern gid_t *trusted_groups; /* List of trusted groups */
757 extern uid_t *trusted_users; /* List of trusted users */
758 extern uschar *timezone_string; /* Required timezone setting */
760 extern uschar *unknown_login; /* To use when login id unknown */
761 extern uschar *unknown_username; /* Ditto */
762 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
763 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
764 extern uschar *uucp_from_sender; /* For building the sender */
766 extern uschar *warn_message_file; /* Template for warning messages */
767 extern uschar *warnmsg_delay; /* String form of delay time */
768 extern uschar *warnmsg_recipients; /* Recipients of warning message */
769 extern BOOL write_rejectlog; /* Control of reject logging */
771 extern uschar *version_copyright; /* Copyright notice */
772 extern uschar *version_date; /* Date of compilation */
773 extern uschar *version_cnumber; /* Compile number */
774 extern uschar *version_string; /* Version string */
776 extern int warning_count; /* Delay warnings sent for this msg */
778 /* End of globals.h */
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