1 /* $Cambridge: exim/src/src/globals.h,v 1.49 2007/02/06 10:00:24 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);
101 /* For clearing, saving, restoring address expansion variables. We have to have
102 the size of this vector set explicitly, because it is referenced from more than
105 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
107 /* General global variables */
109 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
110 extern header_line *acl_added_headers; /* Headers added by an ACL */
111 extern tree_node *acl_anchor; /* Tree of named ACLs */
112 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
113 #ifdef WITH_CONTENT_SCAN
114 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
116 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
117 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
118 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
119 extern uschar *acl_smtp_data; /* ACL run after DATA received */
120 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
121 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
122 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
123 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
124 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
125 #ifdef WITH_CONTENT_SCAN
126 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
128 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
129 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
130 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
131 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
132 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
133 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
134 extern tree_node *acl_var_c; /* ACL connection variables */
135 extern tree_node *acl_var_m; /* ACL messsage variables */
136 extern uschar *acl_verify_message; /* User message for verify failure */
137 extern string_item *acl_warn_logged; /* Logged lines */
138 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
139 extern uschar *acl_wherenames[]; /* Names for messages */
140 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
141 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
142 extern address_item *addr_duplicate; /* Duplicate address list */
143 extern address_item address_defaults; /* Default data for address item */
144 extern uschar *address_file; /* Name of file when delivering to one */
145 extern uschar *address_pipe; /* Pipe command when delivering to one */
146 extern BOOL address_test_mode; /* True for -bt */
147 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
148 extern int addresslist_count; /* Number defined */
149 extern gid_t *admin_groups; /* List of admin groups */
150 extern BOOL admin_user; /* True if caller can do admin */
151 extern BOOL allow_auth_unadvertised;/* As it says */
152 extern BOOL allow_domain_literals; /* As it says */
153 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
154 extern BOOL allow_unqualified_recipient; /* As it says */
155 extern BOOL allow_unqualified_sender; /* Ditto */
156 extern BOOL allow_utf8_domains; /* For experimenting */
157 extern uschar *authenticated_id; /* ID that was authenticated */
158 extern uschar *authenticated_sender; /* From AUTH on MAIL */
159 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
160 extern uschar *auth_advertise_hosts; /* Only advertise to these */
161 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
162 extern auth_instance *auths; /* Chain of instantiated auths */
163 extern auth_instance auth_defaults; /* Default values */
164 extern uschar *auth_defer_msg; /* Error message for log */
165 extern uschar *auth_defer_user_msg; /* Error message for user */
166 extern uschar *auth_vars[]; /* $authn variables */
167 extern int auto_thaw; /* Auto-thaw interval */
168 #ifdef WITH_CONTENT_SCAN
169 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
172 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
173 extern uschar *base62_chars; /* Table of base-62 characters */
174 extern uschar *bi_command; /* Command for -bi option */
175 extern uschar *big_buffer; /* Used for various temp things */
176 extern int big_buffer_size; /* Current size (can expand) */
177 #ifdef EXPERIMENTAL_BRIGHTMAIL
178 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
179 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
180 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
181 extern uschar *bmi_config_file; /* Brightmail config file */
182 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
183 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
184 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
186 extern int body_linecount; /* Line count in body */
187 extern int body_zerocount; /* Binary zero count in body */
188 extern uschar *bounce_message_file; /* Template file */
189 extern uschar *bounce_message_text; /* One-liner */
190 extern uschar *bounce_recipient; /* When writing an errmsg */
191 extern BOOL bounce_return_body; /* Include body in returned message */
192 extern BOOL bounce_return_message; /* Include message in bounce */
193 extern int bounce_return_size_limit; /* Max amount to return */
194 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
195 extern int bsmtp_transaction_linecount; /* Start of last transaction */
197 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
198 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
199 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
200 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
201 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
202 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
203 extern int check_log_inodes; /* Minimum for message acceptance */
204 extern int check_log_space; /* Minimum for message acceptance */
205 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
206 extern int check_spool_inodes; /* Minimum for message acceptance */
207 extern int check_spool_space; /* Minimum for message acceptance */
208 extern int clmacro_count; /* Number of command line macros */
209 extern uschar *clmacros[]; /* Copy of them, for re-exec */
210 extern int connection_max_messages;/* Max down one SMTP connection */
211 extern BOOL config_changed; /* True if -C used */
212 extern FILE *config_file; /* Configuration file */
213 extern uschar *config_filename; /* Configuration file name */
214 #ifdef CONFIGURE_GROUP
215 extern gid_t config_gid; /* Additional group owner */
217 extern int config_lineno; /* Line number */
218 extern uschar *config_main_filelist; /* List of possible config files */
219 extern uschar *config_main_filename; /* File name actually used */
220 #ifdef CONFIGURE_OWNER
221 extern uid_t config_uid; /* Additional owner */
223 extern uschar *continue_hostname; /* Host for continued delivery */
224 extern uschar *continue_host_address; /* IP address for ditto */
225 extern BOOL continue_more; /* Flag more addresses waiting */
226 extern int continue_sequence; /* Sequence num for continued delivery */
227 extern uschar *continue_transport; /* Transport for continued delivery */
229 extern uschar *csa_status; /* Client SMTP Authorization result */
231 extern BOOL daemon_listen; /* True if listening required */
232 extern uschar *daemon_smtp_port; /* Can be a list of ports */
233 extern int daemon_startup_retries; /* Number of times to retry */
234 extern int daemon_startup_sleep; /* Sleep between retries */
235 extern BOOL debug_daemon; /* Debug the daemon process only */
236 extern int debug_fd; /* The fd for debug_file */
237 extern FILE *debug_file; /* Where to write debugging info */
238 extern bit_table debug_options[]; /* Table of debug options */
239 extern int debug_options_count; /* Size of table */
240 extern int delay_warning[]; /* Times between warnings */
241 extern uschar *delay_warning_condition; /* Condition string for warnings */
242 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
244 extern uschar *deliver_address_data; /* Arbitrary data for an address */
245 extern int deliver_datafile; /* FD for data part of message */
246 extern uschar *deliver_domain; /* The local domain for delivery */
247 extern uschar *deliver_domain_data; /* From domain lookup */
248 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
249 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
250 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
251 extern BOOL deliver_firsttime; /* True for first delivery attempt */
252 extern BOOL deliver_force; /* TRUE if delivery was forced */
253 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
254 extern int deliver_frozen_at; /* Time of freezing */
255 extern uschar *deliver_home; /* Home directory for pipes */
256 extern uschar *deliver_host; /* (First) host for routed local deliveries */
257 /* Remote host for filter */
258 extern uschar *deliver_host_address; /* Address for remote delivery filter */
259 extern uschar *deliver_in_buffer; /* Buffer for copying file */
260 extern ino_t deliver_inode; /* Inode for appendfile */
261 extern uschar *deliver_localpart; /* The local part for delivery */
262 extern uschar *deliver_localpart_data; /* From local part lookup */
263 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
264 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
265 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
266 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
267 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
268 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
269 extern uschar *deliver_out_buffer; /* Buffer for copying file */
270 extern int deliver_queue_load_max; /* Different value for queue running */
271 extern address_item *deliver_recipients; /* Current set of addresses */
272 extern uschar *deliver_selectstring; /* For selecting by recipient */
273 extern BOOL deliver_selectstring_regex; /* String is regex */
274 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
275 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
276 #ifdef WITH_OLD_DEMIME
277 extern int demime_errorlevel; /* Severity of MIME error */
278 extern int demime_ok; /* Nonzero if message has been demimed */
279 extern uschar *demime_reason; /* Reason for broken MIME container */
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 BOOL enable_dollar_recipients; /* Make $recipients available */
312 extern int envelope_to_remove; /* Remove envelope_to_headers */
313 extern int errno_quota; /* Quota errno in this OS */
314 extern int error_handling; /* Error handling style */
315 extern uschar *errors_copy; /* For taking copies of errors */
316 extern uschar *errors_reply_to; /* Reply-to for error messages */
317 extern int errors_sender_rc; /* Return after message to sender*/
318 extern gid_t exim_gid; /* To be used with exim_uid */
319 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
320 extern uschar *exim_path; /* Path to exec exim */
321 extern uid_t exim_uid; /* Non-root uid for exim */
322 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
323 extern int expand_forbid; /* RDO flags for forbidding things */
324 extern int expand_nlength[]; /* Lengths of numbered strings */
325 extern int expand_nmax; /* Max numerical value */
326 extern uschar *expand_nstring[]; /* Numbered strings */
327 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
328 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
329 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
331 extern int fake_response; /* Fake FAIL or DEFER response to data */
332 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
333 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
334 extern BOOL filter_running; /* TRUE while running a filter */
335 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
336 extern int filter_test; /* Filter test type */
337 extern uschar *filter_test_sfile; /* System filter test file */
338 extern uschar *filter_test_ufile; /* User filter test file */
339 extern uschar *filter_thisaddress; /* For address looping */
340 extern int finduser_retries; /* Retry count for getpwnam() */
341 extern uid_t fixed_never_users[]; /* Can't be overridden */
342 #ifdef WITH_OLD_DEMIME
343 extern uschar *found_extension; /* demime acl condition: file extension found */
345 extern uschar *freeze_tell; /* Message on (some) freezings */
346 extern uschar *freeze_tell_config; /* The configured setting */
347 extern uschar *fudged_queue_times; /* For use in test harness */
349 extern uschar *gecos_name; /* To be expanded when pattern matches */
350 extern uschar *gecos_pattern; /* Pattern to match */
351 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
353 extern int header_insert_maxlen; /* Max for inserting headers */
354 extern int header_maxsize; /* Max total length for header */
355 extern int header_line_maxsize; /* Max for an individual line */
356 extern header_name header_names[]; /* Table of header names */
357 extern int header_names_size; /* Number of entries */
358 extern BOOL header_rewritten; /* TRUE if header changed by router */
359 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
360 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
361 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
362 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
363 extern BOOL helo_verified; /* True if HELO verified */
364 extern BOOL helo_verify_failed; /* True if attempt failed */
365 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
366 extern uschar *hex_digits; /* Used in several places */
367 extern uschar *hold_domains; /* Hold up deliveries to these */
368 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
369 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
370 extern uschar *host_data; /* Obtained from lookup in ACL */
371 extern uschar *host_lookup; /* For which IP addresses are always looked up */
372 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
373 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
374 extern uschar *host_lookup_order; /* Order of host lookup types */
375 extern uschar *host_lookup_msg; /* Text for why it failed */
376 extern int host_number; /* For sharing spools */
377 extern uschar *host_number_string; /* For expanding */
378 extern uschar *host_reject_connection; /* Reject these hosts */
379 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
380 extern int hostlist_count; /* Number defined */
381 extern uschar *hosts_connection_nolog; /* Limits the logging option */
382 extern uschar *hosts_treat_as_local; /* For routing */
384 extern int ignore_bounce_errors_after; /* Keep them for this time. */
385 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
386 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
387 extern BOOL is_inetd; /* True for inetd calls */
388 extern uschar *iterate_item; /* Item from iterate list */
390 extern int journal_fd; /* Fd for journal file */
392 extern int keep_malformed; /* Time to keep malformed messages */
394 extern uschar *eldap_dn; /* Where LDAP DNs are left */
395 extern int load_average; /* Most recently read load average */
396 extern BOOL local_error_message; /* True if handling one of these */
397 extern BOOL local_from_check; /* For adding Sender: (global value) */
398 extern uschar *local_from_prefix; /* Permitted prefixes */
399 extern uschar *local_from_suffix; /* Permitted suffixes */
400 extern uschar *local_interfaces; /* For forcing specific interfaces */
401 extern uschar *local_scan_data; /* Text returned by local_scan() */
402 extern optionlist local_scan_options[];/* Option list for local_scan() */
403 extern int local_scan_options_count; /* Size of the list */
404 extern int local_scan_timeout; /* Timeout for local_scan() */
405 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
406 extern gid_t local_user_gid; /* As it says; may be set in routers */
407 extern uid_t local_user_uid; /* As it says; may be set in routers */
408 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
409 extern int localpartlist_count; /* Number defined */
410 extern uschar *log_buffer; /* For constructing log entries */
411 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
412 extern uschar *log_file_path; /* If unset, use default */
413 extern bit_table log_options[]; /* Table of options */
414 extern int log_options_count; /* Size of table */
415 extern int log_reject_target; /* Target log for ACL rejections */
416 extern uschar *log_selector_string; /* As supplied in the config */
417 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
418 extern BOOL log_testing_mode; /* TRUE in various testing modes */
419 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
420 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
421 extern uschar *login_sender_address; /* The actual sender address */
422 extern lookup_info lookup_list[]; /* Vector of available lookups */
423 extern int lookup_list_count; /* Number of entries in the list */
424 extern int lookup_open_max; /* Max lookup files to cache */
425 extern uschar *lookup_value; /* Value looked up from file */
427 extern macro_item *macros; /* Configuration macros */
428 extern uschar *mailstore_basename; /* For mailstore deliveries */
429 #ifdef WITH_CONTENT_SCAN
430 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
432 extern int max_username_length; /* For systems with broken getpwnam() */
433 extern int message_age; /* In seconds */
434 extern uschar *message_body; /* Start of message body for filter */
435 extern uschar *message_body_end; /* End of message body for filter */
436 extern int message_body_size; /* Sic */
437 extern int message_body_visible; /* Amount visible in message_body */
438 extern int message_ended; /* State of message reading and how ended */
439 extern uschar *message_headers; /* When built */
440 extern uschar message_id_option[]; /* -E<message-id> for use as option */
441 extern uschar *message_id_external; /* External form of following */
442 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
443 extern uschar *message_id_text; /* Expanded to form message_id */
444 extern struct timeval message_id_tv; /* Time used to create last message_id */
445 extern int message_linecount; /* As it says */
446 extern BOOL message_logs; /* TRUE to write message logs */
447 extern int message_size; /* Size of message */
448 extern uschar *message_size_limit; /* As it says */
449 extern uschar message_subdir[]; /* Subdirectory for messages */
450 extern uschar *message_reference; /* Reference for error messages */
452 /* MIME ACL expandables */
453 #ifdef WITH_CONTENT_SCAN
454 extern int mime_anomaly_level;
455 extern uschar *mime_anomaly_text;
456 extern uschar *mime_boundary;
457 extern uschar *mime_charset;
458 extern uschar *mime_content_description;
459 extern uschar *mime_content_disposition;
460 extern uschar *mime_content_id;
461 extern unsigned int mime_content_size;
462 extern uschar *mime_content_transfer_encoding;
463 extern uschar *mime_content_type;
464 extern uschar *mime_decoded_filename;
465 extern uschar *mime_filename;
466 extern int mime_is_multipart;
467 extern int mime_is_coverletter;
468 extern int mime_is_rfc822;
469 extern int mime_part_count;
472 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
474 extern uid_t *never_users; /* List of uids never to be used */
475 #ifdef WITH_CONTENT_SCAN
476 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
478 extern BOOL no_multiline_responses; /* For broken clients */
480 extern optionlist optionlist_auths[]; /* These option lists are made */
481 extern int optionlist_auths_size; /* global so that readconf can */
482 extern optionlist optionlist_routers[]; /* see them for printing out */
483 extern int optionlist_routers_size; /* the options. */
484 extern optionlist optionlist_transports[];
485 extern int optionlist_transports_size;
487 extern uid_t original_euid; /* Original effective uid */
488 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
489 extern uschar *originator_login; /* Login of same */
490 extern uschar *originator_name; /* Full name of same */
491 extern uid_t originator_uid; /* Uid of ditto */
492 extern uschar *override_local_interfaces; /* Value of -oX argument */
493 extern uschar *override_pid_file_path; /* Value of -oP argument */
495 extern BOOL parse_allow_group; /* Allow group syntax */
496 extern BOOL parse_found_group; /* In the middle of a group */
497 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
498 extern uschar *pid_file_path; /* For writing daemon pids */
499 extern uschar *pipelining_advertise_hosts; /* As it says */
500 extern BOOL pipelining_enable; /* As it says */
501 extern BOOL preserve_message_logs; /* Save msglog files */
502 extern uschar *primary_hostname; /* Primary name of this computer */
503 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
504 extern uschar process_info[]; /* For SIGUSR1 output */
505 extern uschar *process_log_path; /* Alternate path */
506 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
507 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
508 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
509 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
511 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
512 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
513 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
514 extern uschar *queue_domains; /* Queue these domains */
515 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
516 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
517 extern BOOL queue_run_force; /* TRUE to force during queue run */
518 extern BOOL queue_run_local; /* Local deliveries only in queue run */
519 extern BOOL queue_running; /* TRUE for queue running process and */
520 /* immediate children */
521 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
522 extern int queue_run_pipe; /* Pipe for synchronizing */
523 extern int queue_interval; /* Queue running interval */
524 extern BOOL queue_only; /* TRUE to disable immediate delivery */
525 extern int queue_only_load; /* Max load before auto-queue */
526 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
527 extern BOOL queue_only_override; /* Allow override from command line */
528 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
529 extern BOOL queue_run_in_order; /* As opposed to random */
530 extern int queue_run_max; /* Max queue runners */
531 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
532 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
534 extern unsigned int random_seed; /* Seed for random numbers */
535 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
536 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
537 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
538 extern uschar *raw_active_hostname; /* Pre-expansion */
539 extern uschar *raw_sender; /* Before rewriting */
540 extern uschar **raw_recipients; /* Before rewriting */
541 extern int raw_recipients_count;
542 extern int rcpt_count; /* Count of RCPT commands in a message */
543 extern int rcpt_fail_count; /* Those that got 5xx */
544 extern int rcpt_defer_count; /* Those that got 4xx */
545 extern gid_t real_gid; /* Real gid */
546 extern uid_t real_uid; /* Real user running program */
547 extern BOOL really_exim; /* FALSE in utilities */
548 extern BOOL receive_call_bombout; /* Flag for crashing log */
549 extern int receive_linecount; /* Mainly for BSMTP errors */
550 extern int receive_messagecount; /* Mainly for BSMTP errors */
551 extern int receive_timeout; /* For non-SMTP acceptance */
552 extern int received_count; /* Count of Received: headers */
553 extern uschar *received_for; /* For "for" field */
554 extern uschar *received_header_text; /* Definition of Received: header */
555 extern int received_headers_max; /* Max count of Received: headers */
556 extern int received_time; /* Time the message was received */
557 extern uschar *recipient_data; /* lookup data for recipients */
558 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
559 extern uschar *recipient_verify_failure; /* What went wrong */
560 extern BOOL recipients_discarded; /* By an ACL */
561 extern int recipients_list_max; /* Maximum number fitting in list */
562 extern int recipients_max; /* Max permitted */
563 extern int recipients_max_reject; /* If TRUE, reject whole message */
564 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
565 extern const pcre *regex_check_dns_names; /* For DNS name checking */
566 extern const pcre *regex_From; /* For recognizing "From_" lines */
567 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
568 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
569 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
570 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
571 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
572 #ifdef WITH_CONTENT_SCAN
573 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
575 extern int remote_delivery_count; /* Number of remote addresses */
576 extern int remote_max_parallel; /* Maximum parallel delivery */
577 extern uschar *remote_sort_domains; /* Remote domain sorting order */
578 extern retry_config *retries; /* Chain of retry config information */
579 extern int retry_data_expire; /* When to expire retry data */
580 extern int retry_interval_max; /* Absolute maximum */
581 extern int retry_maximum_timeout; /* The maximum timeout */
582 extern uschar *return_path; /* Return path for a message */
583 extern BOOL return_path_remove; /* Remove return-path headers */
584 extern int rewrite_existflags; /* Indicate which headers have rewrites */
585 extern uschar *rfc1413_hosts; /* RFC hosts */
586 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
587 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
588 extern uid_t root_uid; /* The uid for root */
589 extern router_info routers_available[];/* Vector of available routers */
590 extern router_instance *routers; /* Chain of instantiated routers */
591 extern router_instance router_defaults;/* Default values */
592 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
593 extern ip_address_item *running_interfaces; /* Host's running interfaces */
594 extern uschar *running_status; /* Flag string for testing */
595 extern int runrc; /* rc from ${run} */
597 extern uschar *search_error_message; /* Details of lookup problem */
598 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
599 extern uschar *self_hostname; /* Self host after routing->directors */
600 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
601 extern uschar *sender_address_data; /* address_data from sender verify */
602 extern BOOL sender_address_forced; /* Set by -f */
603 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
604 extern uschar *sender_data; /* lookup result for senders */
605 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
606 extern uschar *sender_fullhost; /* Sender host name + address */
607 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
608 extern uschar **sender_host_aliases; /* Points to list of alias names */
609 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
610 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
611 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
612 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
613 extern BOOL sender_local; /* TRUE for local senders */
614 extern BOOL sender_name_forced; /* Set by -F */
615 extern uschar *sender_rate; /* Sender rate computed by ACL */
616 extern uschar *sender_rate_limit; /* Configured rate limit */
617 extern uschar *sender_rate_period; /* Configured smoothing period */
618 extern uschar *sender_rcvhost; /* Host data for Received: */
619 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
620 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
621 extern uschar *sender_verify_failure; /* What went wrong */
622 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
623 extern address_item *sender_verified_failed; /* The one that caused denial */
624 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
625 extern int sending_port; /* Port of outgoing interface */
626 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
627 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
628 extern int smtp_accept_count; /* Count of connections */
629 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
630 extern int smtp_accept_max; /* Max SMTP connections */
631 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
632 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
633 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
634 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
635 extern int smtp_accept_queue; /* Queue after so many connections */
636 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
637 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
638 extern uschar *smtp_active_hostname; /* Hostname for this message */
639 extern BOOL smtp_authenticated; /* Sending client has authenticated */
640 extern uschar *smtp_banner; /* Banner string (to be expanded) */
641 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
642 extern int smtp_ch_index; /* Index in smtp_connection_had */
643 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
644 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
645 extern time_t smtp_connection_start; /* Start time of SMTP connection */
646 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
647 extern int smtp_connect_backlog; /* Max backlog permitted */
648 extern double smtp_delay_mail; /* Current MAIL delay */
649 extern double smtp_delay_rcpt; /* Current RCPT delay */
650 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
651 extern uschar *smtp_etrn_command; /* Command to run */
652 extern BOOL smtp_etrn_serialize; /* Only one at once */
653 extern FILE *smtp_in; /* Incoming SMTP input file */
654 extern int smtp_load_reserve; /* Only from reserved if load > this */
655 extern int smtp_mailcmd_count; /* Count of MAIL commands */
656 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
657 extern int smtp_max_unknown_commands; /* As it says */
658 extern FILE *smtp_out; /* Incoming SMTP output file */
659 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
660 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
661 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
662 extern uschar *smtp_read_error; /* Message for SMTP input error */
663 extern int smtp_receive_timeout; /* Applies to each received line */
664 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
665 extern BOOL smtp_return_error_details; /* TRUE to return full info */
666 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
667 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
668 extern int smtp_rlm_limit; /* Max delay */
669 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
670 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
671 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
672 extern int smtp_rlr_limit; /* Max delay */
673 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
674 extern BOOL smtp_use_pipelining; /* Global for passed connections */
675 extern BOOL smtp_use_size; /* Global for passed connections */
677 #ifdef WITH_CONTENT_SCAN
678 extern uschar *spamd_address; /* address for the spamassassin daemon */
679 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
680 extern uschar *spam_report; /* the spamd report (multiline) */
681 extern uschar *spam_score; /* the spam score (float) */
682 extern uschar *spam_score_int; /* spam_score * 10 (int) */
684 #ifdef EXPERIMENTAL_SPF
685 extern uschar *spf_header_comment; /* spf header comment */
686 extern uschar *spf_received; /* SPF-Received: header */
687 extern uschar *spf_result; /* spf result in string form */
688 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
690 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
691 extern uschar *spool_directory; /* Name of spool directory */
692 #ifdef EXPERIMENTAL_SRS
693 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
694 extern uschar *srs_db_address; /* SRS db address */
695 extern uschar *srs_db_key; /* SRS db key */
696 extern int srs_hashlength; /* SRS hash length */
697 extern int srs_hashmin; /* SRS minimum hash length */
698 extern int srs_maxage; /* SRS max age */
699 extern uschar *srs_orig_sender; /* SRS original sender */
700 extern uschar *srs_orig_recipient; /* SRS original recipient */
701 extern uschar *srs_recipient; /* SRS recipient */
702 extern uschar *srs_secrets; /* SRS secrets list */
703 extern uschar *srs_status; /* SRS staus */
704 extern BOOL srs_usehash; /* SRS use hash flag */
705 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
707 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
708 extern int string_datestamp_offset;/* After insertion by string_format */
709 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
710 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
711 extern uschar *submission_domain; /* Domain for submission mode */
712 extern BOOL submission_mode; /* Can be forced from ACL */
713 extern uschar *submission_name; /* User name set from ACL */
714 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
715 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
716 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
717 extern int syslog_facility; /* As defined by Syslog.h */
718 extern uschar *syslog_processname; /* 'ident' param to openlog() */
719 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
720 extern uschar *system_filter; /* Name of system filter file */
722 extern uschar *system_filter_directory_transport; /* Transports for the */
723 extern uschar *system_filter_file_transport; /* system filter */
724 extern uschar *system_filter_pipe_transport;
725 extern uschar *system_filter_reply_transport;
727 extern gid_t system_filter_gid; /* Gid for running system filter */
728 extern BOOL system_filter_gid_set; /* TRUE if gid set */
729 extern uid_t system_filter_uid; /* Uid for running system filter */
730 extern BOOL system_filter_uid_set; /* TRUE if uid set */
731 extern BOOL system_filtering; /* TRUE when running system filter */
733 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
734 extern int thismessage_size_limit; /* Limit for this message */
735 extern int timeout_frozen_after; /* Max time to keep frozen messages */
736 extern BOOL timestamps_utc; /* Use UTC for all times */
737 extern int transport_count; /* Count of bytes transported */
738 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
739 extern int transport_filter_timeout; /* Timeout for same */
740 extern BOOL transport_filter_timed_out; /* True if it did */
742 extern transport_info transports_available[]; /* Vector of available transports */
743 extern transport_instance *transports; /* Chain of instantiated transports */
744 extern transport_instance transport_defaults; /* Default values */
746 extern int transport_write_timeout;/* Set to time out individual writes */
748 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
749 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
750 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
751 extern tree_node *tree_unusable; /* Tree of unusable addresses */
753 extern BOOL trusted_caller; /* Caller is trusted */
754 extern gid_t *trusted_groups; /* List of trusted groups */
755 extern uid_t *trusted_users; /* List of trusted users */
756 extern uschar *timezone_string; /* Required timezone setting */
758 extern uschar *unknown_login; /* To use when login id unknown */
759 extern uschar *unknown_username; /* Ditto */
760 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
761 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
762 extern uschar *uucp_from_sender; /* For building the sender */
764 extern uschar *warn_message_file; /* Template for warning messages */
765 extern uschar *warnmsg_delay; /* String form of delay time */
766 extern uschar *warnmsg_recipients; /* Recipients of warning message */
767 extern BOOL write_rejectlog; /* Control of reject logging */
769 extern uschar *version_copyright; /* Copyright notice */
770 extern uschar *version_date; /* Date of compilation */
771 extern uschar *version_cnumber; /* Compile number */
772 extern uschar *version_string; /* Version string */
774 extern int warning_count; /* Delay warnings sent for this msg */
776 /* End of globals.h */
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