1 /* $Cambridge: exim/src/src/globals.h,v 1.34 2006/02/10 14:25:43 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2006 */
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 const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
75 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
76 extern uschar *tls_certificate; /* Certificate file */
77 extern uschar *tls_crl; /* CRL File */
78 extern uschar *tls_dhparam; /* DH param file */
79 extern BOOL tls_offered; /* Server offered TLS */
80 extern uschar *tls_privatekey; /* Private key file */
81 extern BOOL tls_remember_esmtp; /* For YAEB */
82 extern uschar *tls_require_ciphers; /* So some can be avoided */
83 extern uschar *tls_try_verify_hosts; /* Optional client verification */
84 extern uschar *tls_verify_certificates;/* Path for certificates to check */
85 extern uschar *tls_verify_hosts; /* Mandatory client verification */
89 /* Input-reading functions for messages, so we can use special ones for
92 extern int (*receive_getc)(void);
93 extern int (*receive_ungetc)(int);
94 extern int (*receive_feof)(void);
95 extern int (*receive_ferror)(void);
98 /* For clearing, saving, restoring address expansion variables. We have to have
99 the size of this vector set explicitly, because it is referenced from more than
102 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
104 /* General global variables */
106 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
107 extern tree_node *acl_anchor; /* Tree of named ACLs */
108 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
109 #ifdef WITH_CONTENT_SCAN
110 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
112 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
113 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
114 extern uschar *acl_smtp_data; /* ACL run after DATA received */
115 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
116 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
117 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
118 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
119 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
120 #ifdef WITH_CONTENT_SCAN
121 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
123 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
124 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
125 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
126 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
127 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
128 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
129 extern uschar *acl_var[ACL_CVARS+ACL_MVARS]; /* User ACL variables */
130 extern uschar *acl_verify_message; /* User message for verify failure */
131 extern header_line *acl_warn_headers; /* Warning headers added by ACL */
132 extern string_item *acl_warn_logged; /* Logged lines */
133 extern int acl_wherecodes[]; /* Response codes for ACL fails */
134 extern uschar *acl_wherenames[]; /* Names for messages */
135 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
136 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
137 extern address_item *addr_duplicate; /* Duplicate address list */
138 extern address_item address_defaults; /* Default data for address item */
139 extern uschar *address_file; /* Name of file when delivering to one */
140 extern uschar *address_pipe; /* Pipe command when delivering to one */
141 extern BOOL address_test_mode; /* True for -bt */
142 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
143 extern int addresslist_count; /* Number defined */
144 extern gid_t *admin_groups; /* List of admin groups */
145 extern BOOL admin_user; /* True if caller can do admin */
146 extern BOOL allow_domain_literals; /* As it says */
147 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
148 extern BOOL allow_unqualified_recipient; /* As it says */
149 extern BOOL allow_unqualified_sender; /* Ditto */
150 extern BOOL allow_utf8_domains; /* For experimenting */
151 extern uschar *authenticated_id; /* ID that was authenticated */
152 extern uschar *authenticated_sender; /* From AUTH on MAIL */
153 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
154 extern uschar *auth_advertise_hosts; /* Only advertise to these */
155 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
156 extern auth_instance *auths; /* Chain of instantiated auths */
157 extern auth_instance auth_defaults; /* Default values */
158 extern uschar *auth_defer_msg; /* Error message for log */
159 extern uschar *auth_defer_user_msg; /* Error message for user */
160 extern uschar *auth_vars[]; /* $authn variables */
161 extern int auto_thaw; /* Auto-thaw interval */
162 #ifdef WITH_CONTENT_SCAN
163 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
166 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
167 extern uschar *base62_chars; /* Table of base-62 characters */
168 extern uschar *bi_command; /* Command for -bi option */
169 extern uschar *big_buffer; /* Used for various temp things */
170 extern int big_buffer_size; /* Current size (can expand) */
171 #ifdef EXPERIMENTAL_BRIGHTMAIL
172 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
173 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
174 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
175 extern uschar *bmi_config_file; /* Brightmail config file */
176 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
177 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
178 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
180 extern int body_linecount; /* Line count in body */
181 extern int body_zerocount; /* Binary zero count in body */
182 extern uschar *bounce_message_file; /* Template file */
183 extern uschar *bounce_message_text; /* One-liner */
184 extern uschar *bounce_recipient; /* When writing an errmsg */
185 extern BOOL bounce_return_body; /* Include body in returned message */
186 extern BOOL bounce_return_message; /* Include message in bounce */
187 extern int bounce_return_size_limit; /* Max amount to return */
188 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
189 extern int bsmtp_transaction_linecount; /* Start of last transaction */
191 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
192 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
193 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
194 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
195 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
196 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
197 extern int check_log_inodes; /* Minimum for message acceptance */
198 extern int check_log_space; /* Minimum for message acceptance */
199 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
200 extern int check_spool_inodes; /* Minimum for message acceptance */
201 extern int check_spool_space; /* Minimum for message acceptance */
202 extern int clmacro_count; /* Number of command line macros */
203 extern uschar *clmacros[]; /* Copy of them, for re-exec */
204 extern int connection_max_messages;/* Max down one SMTP connection */
205 extern BOOL config_changed; /* True if -C used */
206 extern FILE *config_file; /* Configuration file */
207 extern uschar *config_filename; /* Configuration file name */
208 #ifdef CONFIGURE_GROUP
209 extern gid_t config_gid; /* Additional group owner */
211 extern int config_lineno; /* Line number */
212 extern uschar *config_main_filelist; /* List of possible config files */
213 extern uschar *config_main_filename; /* File name actually used */
214 #ifdef CONFIGURE_OWNER
215 extern uid_t config_uid; /* Additional owner */
217 extern uschar *continue_hostname; /* Host for continued delivery */
218 extern uschar *continue_host_address; /* IP address for ditto */
219 extern BOOL continue_more; /* Flag more addresses waiting */
220 extern int continue_sequence; /* Sequence num for continued delivery */
221 extern uschar *continue_transport; /* Transport for continued delivery */
223 extern uschar *csa_status; /* Client SMTP Authorization result */
225 extern BOOL daemon_listen; /* True if listening required */
226 extern uschar *daemon_smtp_port; /* Can be a list of ports */
227 extern int daemon_startup_retries; /* Number of times to retry */
228 extern int daemon_startup_sleep; /* Sleep between retries */
229 extern BOOL debug_daemon; /* Debug the daemon process only */
230 extern int debug_fd; /* The fd for debug_file */
231 extern FILE *debug_file; /* Where to write debugging info */
232 extern bit_table debug_options[]; /* Table of debug options */
233 extern int debug_options_count; /* Size of table */
234 extern int delay_warning[]; /* Times between warnings */
235 extern uschar *delay_warning_condition; /* Condition string for warnings */
236 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
238 extern uschar *deliver_address_data; /* Arbitrary data for an address */
239 extern int deliver_datafile; /* FD for data part of message */
240 extern uschar *deliver_domain; /* The local domain for delivery */
241 extern uschar *deliver_domain_data; /* From domain lookup */
242 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
243 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
244 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
245 extern BOOL deliver_firsttime; /* True for first delivery attempt */
246 extern BOOL deliver_force; /* TRUE if delivery was forced */
247 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
248 extern int deliver_frozen_at; /* Time of freezing */
249 extern uschar *deliver_home; /* Home directory for pipes */
250 extern uschar *deliver_host; /* (First) host for routed local deliveries */
251 /* Remote host for filter */
252 extern uschar *deliver_host_address; /* Address for remote delivery filter */
253 extern uschar *deliver_in_buffer; /* Buffer for copying file */
254 extern ino_t deliver_inode; /* Inode for appendfile */
255 extern uschar *deliver_localpart; /* The local part for delivery */
256 extern uschar *deliver_localpart_data; /* From local part lookup */
257 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
258 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
259 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
260 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
261 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
262 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
263 extern uschar *deliver_out_buffer; /* Buffer for copying file */
264 extern int deliver_queue_load_max; /* Different value for queue running */
265 extern address_item *deliver_recipients; /* Current set of addresses */
266 extern uschar *deliver_selectstring; /* For selecting by recipient */
267 extern BOOL deliver_selectstring_regex; /* String is regex */
268 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
269 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
270 #ifdef WITH_OLD_DEMIME
271 extern int demime_errorlevel; /* Severity of MIME error */
272 extern int demime_ok; /* Nonzero if message has been demimed */
273 extern uschar *demime_reason; /* Reason for broken MIME container */
275 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
276 extern BOOL disable_logging; /* Disables log writing when TRUE */
278 #ifdef EXPERIMENTAL_DOMAINKEYS
279 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
280 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
281 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
284 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
285 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
286 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
287 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
288 extern int dns_retrans; /* Retransmission time setting */
289 extern int dns_retry; /* Number of retries */
290 extern uschar *dnslist_domain; /* DNS (black) list domain */
291 extern uschar *dnslist_text; /* DNS (black) list text message */
292 extern uschar *dnslist_value; /* DNS (black) list IP address */
293 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
294 extern int domainlist_count; /* Number defined */
295 extern BOOL dont_deliver; /* TRUE for -N option */
296 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
298 /* This option is now a no-opt, retained for compatibility */
299 extern BOOL drop_cr; /* For broken local MUAs */
301 extern BOOL enable_dollar_recipients; /* Make $recipients available */
302 extern int envelope_to_remove; /* Remove envelope_to_headers */
303 extern int errno_quota; /* Quota errno in this OS */
304 extern int error_handling; /* Error handling style */
305 extern uschar *errors_copy; /* For taking copies of errors */
306 extern uschar *errors_reply_to; /* Reply-to for error messages */
307 extern int errors_sender_rc; /* Return after message to sender*/
308 extern gid_t exim_gid; /* To be used with exim_uid */
309 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
310 extern uschar *exim_path; /* Path to exec exim */
311 extern uid_t exim_uid; /* Non-root uid for exim */
312 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
313 extern int expand_forbid; /* RDO flags for forbidding things */
314 extern int expand_nlength[]; /* Lengths of numbered strings */
315 extern int expand_nmax; /* Max numerical value */
316 extern uschar *expand_nstring[]; /* Numbered strings */
317 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
318 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
319 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
321 extern int fake_response; /* Fake FAIL or DEFER response to data */
322 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
323 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
324 extern BOOL filter_running; /* TRUE while running a filter */
325 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
326 extern int filter_test; /* Filter test type */
327 extern uschar *filter_test_sfile; /* System filter test file */
328 extern uschar *filter_test_ufile; /* User filter test file */
329 extern uschar *filter_thisaddress; /* For address looping */
330 extern int finduser_retries; /* Retry count for getpwnam() */
331 extern uid_t fixed_never_users[]; /* Can't be overridden */
332 #ifdef WITH_OLD_DEMIME
333 extern uschar *found_extension; /* demime acl condition: file extension found */
335 extern uschar *freeze_tell; /* Message on (some) freezings */
336 extern uschar *fudged_queue_times; /* For use in test harness */
338 extern uschar *gecos_name; /* To be expanded when pattern matches */
339 extern uschar *gecos_pattern; /* Pattern to match */
340 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
342 extern int header_insert_maxlen; /* Max for inserting headers */
343 extern int header_maxsize; /* Max total length for header */
344 extern int header_line_maxsize; /* Max for an individual line */
345 extern header_name header_names[]; /* Table of header names */
346 extern int header_names_size; /* Number of entries */
347 extern BOOL header_rewritten; /* TRUE if header changed by router */
348 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
349 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
350 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
351 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
352 extern BOOL helo_verified; /* True if HELO verified */
353 extern BOOL helo_verify_failed; /* True if attempt failed */
354 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
355 extern uschar *hex_digits; /* Used in several places */
356 extern uschar *hold_domains; /* Hold up deliveries to these */
357 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
358 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
359 extern uschar *host_data; /* Obtained from lookup in ACL */
360 extern uschar *host_lookup; /* For which IP addresses are always looked up */
361 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
362 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
363 extern uschar *host_lookup_order; /* Order of host lookup types */
364 extern uschar *host_lookup_msg; /* Text for why it failed */
365 extern int host_number; /* For sharing spools */
366 extern uschar *host_number_string; /* For expanding */
367 extern uschar *host_reject_connection; /* Reject these hosts */
368 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
369 extern int hostlist_count; /* Number defined */
370 extern uschar *hosts_connection_nolog; /* Limits the logging option */
371 extern uschar *hosts_treat_as_local; /* For routing */
373 extern int ignore_bounce_errors_after; /* Keep them for this time. */
374 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
375 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
376 extern BOOL is_inetd; /* True for inetd calls */
378 extern int journal_fd; /* Fd for journal file */
380 extern int keep_malformed; /* Time to keep malformed messages */
382 extern uschar *eldap_dn; /* Where LDAP DNs are left */
383 extern int load_average; /* Most recently read load average */
384 extern BOOL local_error_message; /* True if handling one of these */
385 extern BOOL local_from_check; /* For adding Sender: (global value) */
386 extern uschar *local_from_prefix; /* Permitted prefixes */
387 extern uschar *local_from_suffix; /* Permitted suffixes */
388 extern uschar *local_interfaces; /* For forcing specific interfaces */
389 extern uschar *local_scan_data; /* Text returned by local_scan() */
390 extern optionlist local_scan_options[];/* Option list for local_scan() */
391 extern int local_scan_options_count; /* Size of the list */
392 extern int local_scan_timeout; /* Timeout for local_scan() */
393 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
394 extern gid_t local_user_gid; /* As it says; may be set in routers */
395 extern uid_t local_user_uid; /* As it says; may be set in routers */
396 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
397 extern int localpartlist_count; /* Number defined */
398 extern uschar *log_buffer; /* For constructing log entries */
399 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
400 extern uschar *log_file_path; /* If unset, use default */
401 extern bit_table log_options[]; /* Table of options */
402 extern int log_options_count; /* Size of table */
403 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
404 extern uschar *log_selector_string; /* As supplied in the config */
405 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
406 extern BOOL log_testing_mode; /* TRUE in various testing modes */
407 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
408 extern uschar *login_sender_address; /* The actual sender address */
409 extern lookup_info lookup_list[]; /* Vector of available lookups */
410 extern int lookup_list_count; /* Number of entries in the list */
411 extern int lookup_open_max; /* Max lookup files to cache */
412 extern uschar *lookup_value; /* Value looked up from file */
414 extern macro_item *macros; /* Configuration macros */
415 extern uschar *mailstore_basename; /* For mailstore deliveries */
416 #ifdef WITH_CONTENT_SCAN
417 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
419 extern int max_username_length; /* For systems with broken getpwnam() */
420 extern int message_age; /* In seconds */
421 extern uschar *message_body; /* Start of message body for filter */
422 extern uschar *message_body_end; /* End of message body for filter */
423 extern int message_body_size; /* Sic */
424 extern int message_body_visible; /* Amount visible in message_body */
425 extern int message_ended; /* State of message reading and how ended */
426 extern uschar *message_headers; /* When built */
427 extern uschar message_id_option[]; /* -E<message-id> for use as option */
428 extern uschar *message_id_external; /* External form of following */
429 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
430 extern uschar *message_id_text; /* Expanded to form message_id */
431 extern struct timeval message_id_tv; /* Time used to create last message_id */
432 extern int message_linecount; /* As it says */
433 extern BOOL message_logs; /* TRUE to write message logs */
434 extern int message_size; /* Size of message */
435 extern uschar *message_size_limit; /* As it says */
436 extern uschar message_subdir[]; /* Subdirectory for messages */
437 extern uschar *message_reference; /* Reference for error messages */
439 /* MIME ACL expandables */
440 #ifdef WITH_CONTENT_SCAN
441 extern int mime_anomaly_level;
442 extern uschar *mime_anomaly_text;
443 extern uschar *mime_boundary;
444 extern uschar *mime_charset;
445 extern uschar *mime_content_description;
446 extern uschar *mime_content_disposition;
447 extern uschar *mime_content_id;
448 extern unsigned int mime_content_size;
449 extern uschar *mime_content_transfer_encoding;
450 extern uschar *mime_content_type;
451 extern uschar *mime_decoded_filename;
452 extern uschar *mime_filename;
453 extern int mime_is_multipart;
454 extern int mime_is_coverletter;
455 extern int mime_is_rfc822;
456 extern int mime_part_count;
459 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
461 extern uid_t *never_users; /* List of uids never to be used */
462 #ifdef WITH_CONTENT_SCAN
463 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
465 extern BOOL no_multiline_responses; /* For broken clients */
467 extern optionlist optionlist_auths[]; /* These option lists are made */
468 extern int optionlist_auths_size; /* global so that readconf can */
469 extern optionlist optionlist_routers[]; /* see them for printing out */
470 extern int optionlist_routers_size; /* the options. */
471 extern optionlist optionlist_transports[];
472 extern int optionlist_transports_size;
474 extern uid_t original_euid; /* Original effective uid */
475 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
476 extern uschar *originator_login; /* Login of same */
477 extern uschar *originator_name; /* Full name of same */
478 extern uid_t originator_uid; /* Uid of ditto */
479 extern uschar *override_local_interfaces; /* Value of -oX argument */
480 extern uschar *override_pid_file_path; /* Value of -oP argument */
482 extern BOOL parse_allow_group; /* Allow group syntax */
483 extern BOOL parse_found_group; /* In the middle of a group */
484 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
485 extern uschar *pid_file_path; /* For writing daemon pids */
486 extern uschar *pipelining_advertise_hosts; /* As it says */
487 extern BOOL preserve_message_logs; /* Save msglog files */
488 extern uschar *primary_hostname; /* Primary name of this computer */
489 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
490 extern uschar process_info[]; /* For SIGUSR1 output */
491 extern uschar *process_log_path; /* Alternate path */
492 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
493 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
494 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
495 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
497 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
498 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
499 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
500 extern uschar *queue_domains; /* Queue these domains */
501 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
502 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
503 extern BOOL queue_run_force; /* TRUE to force during queue run */
504 extern BOOL queue_run_local; /* Local deliveries only in queue run */
505 extern BOOL queue_running; /* TRUE for queue running process and */
506 /* immediate children */
507 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
508 extern int queue_run_pipe; /* Pipe for synchronizing */
509 extern int queue_interval; /* Queue running interval */
510 extern BOOL queue_only; /* TRUE to disable immediate delivery */
511 extern int queue_only_load; /* Max load before auto-queue */
512 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
513 extern BOOL queue_only_override; /* Allow override from command line */
514 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
515 extern BOOL queue_run_in_order; /* As opposed to random */
516 extern int queue_run_max; /* Max queue runners */
517 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
518 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
520 extern unsigned int random_seed; /* Seed for random numbers */
521 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
522 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
523 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
524 extern uschar *raw_active_hostname; /* Pre-expansion */
525 extern uschar *raw_sender; /* Before rewriting */
526 extern uschar **raw_recipients; /* Before rewriting */
527 extern int raw_recipients_count;
528 extern int rcpt_count; /* Count of RCPT commands in a message */
529 extern int rcpt_fail_count; /* Those that got 5xx */
530 extern int rcpt_defer_count; /* Those that got 4xx */
531 extern gid_t real_gid; /* Real gid */
532 extern uid_t real_uid; /* Real user running program */
533 extern BOOL really_exim; /* FALSE in utilities */
534 extern BOOL receive_call_bombout; /* Flag for crashing log */
535 extern int receive_linecount; /* Mainly for BSMTP errors */
536 extern int receive_messagecount; /* Mainly for BSMTP errors */
537 extern int receive_timeout; /* For non-SMTP acceptance */
538 extern int received_count; /* Count of Received: headers */
539 extern uschar *received_for; /* For "for" field */
540 extern uschar *received_header_text; /* Definition of Received: header */
541 extern int received_headers_max; /* Max count of Received: headers */
542 extern int received_time; /* Time the message was received */
543 extern uschar *recipient_data; /* lookup data for recipients */
544 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
545 extern uschar *recipient_verify_failure; /* What went wrong */
546 extern BOOL recipients_discarded; /* By an ACL */
547 extern int recipients_list_max; /* Maximum number fitting in list */
548 extern int recipients_max; /* Max permitted */
549 extern int recipients_max_reject; /* If TRUE, reject whole message */
550 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
551 extern const pcre *regex_check_dns_names; /* For DNS name checking */
552 extern const pcre *regex_From; /* For recognizing "From_" lines */
553 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
554 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
555 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
556 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
557 #ifdef WITH_CONTENT_SCAN
558 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
560 extern int remote_delivery_count; /* Number of remote addresses */
561 extern int remote_max_parallel; /* Maximum parallel delivery */
562 extern uschar *remote_sort_domains; /* Remote domain sorting order */
563 extern retry_config *retries; /* Chain of retry config information */
564 extern int retry_data_expire; /* When to expire retry data */
565 extern int retry_interval_max; /* Absolute maximum */
566 extern int retry_maximum_timeout; /* The maximum timeout */
567 extern uschar *return_path; /* Return path for a message */
568 extern BOOL return_path_remove; /* Remove return-path headers */
569 extern int rewrite_existflags; /* Indicate which headers have rewrites */
570 extern uschar *rfc1413_hosts; /* RFC hosts */
571 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
572 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
573 extern uid_t root_uid; /* The uid for root */
574 extern router_info routers_available[];/* Vector of available routers */
575 extern router_instance *routers; /* Chain of instantiated routers */
576 extern router_instance router_defaults;/* Default values */
577 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
578 extern ip_address_item *running_interfaces; /* Host's running interfaces */
579 extern uschar *running_status; /* Flag string for testing */
580 extern int runrc; /* rc from ${run} */
582 extern uschar *search_error_message; /* Details of lookup problem */
583 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
584 extern uschar *self_hostname; /* Self host after routing->directors */
585 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
586 extern uschar *sender_address_data; /* address_data from sender verify */
587 extern BOOL sender_address_forced; /* Set by -f */
588 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
589 extern uschar *sender_data; /* lookup result for senders */
590 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
591 extern uschar *sender_fullhost; /* Sender host name + address */
592 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
593 extern uschar **sender_host_aliases; /* Points to list of alias names */
594 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
595 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
596 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
597 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
598 extern BOOL sender_local; /* TRUE for local senders */
599 extern BOOL sender_name_forced; /* Set by -F */
600 extern uschar *sender_rate; /* Sender rate computed by ACL */
601 extern uschar *sender_rate_limit; /* Configured rate limit */
602 extern uschar *sender_rate_period; /* Configured smoothing period */
603 extern uschar *sender_rcvhost; /* Host data for Received: */
604 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
605 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
606 extern uschar *sender_verify_failure; /* What went wrong */
607 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
608 extern address_item *sender_verified_failed; /* The one that caused denial */
609 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
610 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
611 extern int smtp_accept_count; /* Count of connections */
612 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
613 extern int smtp_accept_max; /* Max SMTP connections */
614 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
615 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
616 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
617 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
618 extern int smtp_accept_queue; /* Queue after so many connections */
619 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
620 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
621 extern uschar *smtp_active_hostname; /* Hostname for this message */
622 extern BOOL smtp_authenticated; /* Sending client has authenticated */
623 extern uschar *smtp_banner; /* Banner string (to be expanded) */
624 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
625 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
626 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
627 extern int smtp_connect_backlog; /* Max backlog permitted */
628 extern double smtp_delay_mail; /* Current MAIL delay */
629 extern double smtp_delay_rcpt; /* Current RCPT delay */
630 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
631 extern uschar *smtp_etrn_command; /* Command to run */
632 extern BOOL smtp_etrn_serialize; /* Only one at once */
633 extern FILE *smtp_in; /* Incoming SMTP input file */
634 extern int smtp_load_reserve; /* Only from reserved if load > this */
635 extern int smtp_mailcmd_count; /* Count of MAIL commands */
636 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
637 extern int smtp_max_unknown_commands; /* As it says */
638 extern FILE *smtp_out; /* Incoming SMTP output file */
639 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
640 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
641 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
642 extern uschar *smtp_read_error; /* Message for SMTP input error */
643 extern int smtp_receive_timeout; /* Applies to each received line */
644 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
645 extern BOOL smtp_return_error_details; /* TRUE to return full info */
646 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
647 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
648 extern int smtp_rlm_limit; /* Max delay */
649 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
650 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
651 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
652 extern int smtp_rlr_limit; /* Max delay */
653 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
654 extern BOOL smtp_use_pipelining; /* Global for passed connections */
655 extern BOOL smtp_use_size; /* Global for passed connections */
657 #ifdef WITH_CONTENT_SCAN
658 extern uschar *spamd_address; /* address for the spamassassin daemon */
659 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
660 extern uschar *spam_report; /* the spamd report (multiline) */
661 extern uschar *spam_score; /* the spam score (float) */
662 extern uschar *spam_score_int; /* spam_score * 10 (int) */
664 #ifdef EXPERIMENTAL_SPF
665 extern uschar *spf_header_comment; /* spf header comment */
666 extern uschar *spf_received; /* SPF-Received: header */
667 extern uschar *spf_result; /* spf result in string form */
668 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
670 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
671 extern uschar *spool_directory; /* Name of spool directory */
672 #ifdef EXPERIMENTAL_SRS
673 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
674 extern uschar *srs_db_address; /* SRS db address */
675 extern uschar *srs_db_key; /* SRS db key */
676 extern int srs_hashlength; /* SRS hash length */
677 extern int srs_hashmin; /* SRS minimum hash length */
678 extern int srs_maxage; /* SRS max age */
679 extern uschar *srs_orig_sender; /* SRS original sender */
680 extern uschar *srs_orig_recipient; /* SRS original recipient */
681 extern uschar *srs_recipient; /* SRS recipient */
682 extern uschar *srs_secrets; /* SRS secrets list */
683 extern uschar *srs_status; /* SRS staus */
684 extern BOOL srs_usehash; /* SRS use hash flag */
685 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
687 extern int string_datestamp_offset;/* After insertion by string_format */
688 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
689 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
690 extern uschar *submission_domain; /* Domain for submission mode */
691 extern BOOL submission_mode; /* Can be forced from ACL */
692 extern uschar *submission_name; /* User name set from ACL */
693 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
694 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
695 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
696 extern int syslog_facility; /* As defined by Syslog.h */
697 extern uschar *syslog_processname; /* 'ident' param to openlog() */
698 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
699 extern uschar *system_filter; /* Name of system filter file */
701 extern uschar *system_filter_directory_transport; /* Transports for the */
702 extern uschar *system_filter_file_transport; /* system filter */
703 extern uschar *system_filter_pipe_transport;
704 extern uschar *system_filter_reply_transport;
706 extern gid_t system_filter_gid; /* Gid for running system filter */
707 extern BOOL system_filter_gid_set; /* TRUE if gid set */
708 extern uid_t system_filter_uid; /* Uid for running system filter */
709 extern BOOL system_filter_uid_set; /* TRUE if uid set */
710 extern BOOL system_filtering; /* TRUE when running system filter */
712 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
713 extern int thismessage_size_limit; /* Limit for this message */
714 extern int timeout_frozen_after; /* Max time to keep frozen messages */
715 extern BOOL timestamps_utc; /* Use UTC for all times */
716 extern int transport_count; /* Count of bytes transported */
717 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
718 extern int transport_filter_timeout; /* Timeout for same */
719 extern BOOL transport_filter_timed_out; /* True if it did */
721 extern transport_info transports_available[]; /* Vector of available transports */
722 extern transport_instance *transports; /* Chain of instantiated transports */
723 extern transport_instance transport_defaults; /* Default values */
725 extern int transport_write_timeout;/* Set to time out individual writes */
727 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
728 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
729 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
730 extern tree_node *tree_unusable; /* Tree of unusable addresses */
732 extern BOOL trusted_caller; /* Caller is trusted */
733 extern gid_t *trusted_groups; /* List of trusted groups */
734 extern uid_t *trusted_users; /* List of trusted users */
735 extern uschar *timezone_string; /* Required timezone setting */
737 extern uschar *unknown_login; /* To use when login id unknown */
738 extern uschar *unknown_username; /* Ditto */
739 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
740 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
741 extern uschar *uucp_from_sender; /* For building the sender */
743 extern uschar *warn_message_file; /* Template for warning messages */
744 extern uschar *warnmsg_delay; /* String form of delay time */
745 extern uschar *warnmsg_recipients; /* Recipients of warning message */
746 extern BOOL write_rejectlog; /* Control of reject logging */
748 extern uschar *version_copyright; /* Copyright notice */
749 extern uschar *version_date; /* Date of compilation */
750 extern uschar *version_cnumber; /* Compile number */
751 extern uschar *version_string; /* Version string */
753 extern int warning_count; /* Delay warnings sent for this msg */
755 /* End of globals.h */
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