1 /* $Cambridge: exim/src/src/globals.h,v 1.46 2007/01/30 11:45:20 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 #ifdef ENABLE_DISABLE_FSYNC
282 extern BOOL disable_fsync; /* Not for normal use */
284 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
285 extern BOOL disable_logging; /* Disables log writing when TRUE */
287 #ifdef EXPERIMENTAL_DOMAINKEYS
288 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
289 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
290 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
293 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
294 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
295 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
296 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
297 extern int dns_retrans; /* Retransmission time setting */
298 extern int dns_retry; /* Number of retries */
299 extern uschar *dnslist_domain; /* DNS (black) list domain */
300 extern uschar *dnslist_text; /* DNS (black) list text message */
301 extern uschar *dnslist_value; /* DNS (black) list IP address */
302 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
303 extern int domainlist_count; /* Number defined */
304 extern BOOL dont_deliver; /* TRUE for -N option */
305 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
307 /* This option is now a no-opt, retained for compatibility */
308 extern BOOL drop_cr; /* For broken local MUAs */
310 extern BOOL enable_dollar_recipients; /* Make $recipients available */
311 extern int envelope_to_remove; /* Remove envelope_to_headers */
312 extern int errno_quota; /* Quota errno in this OS */
313 extern int error_handling; /* Error handling style */
314 extern uschar *errors_copy; /* For taking copies of errors */
315 extern uschar *errors_reply_to; /* Reply-to for error messages */
316 extern int errors_sender_rc; /* Return after message to sender*/
317 extern gid_t exim_gid; /* To be used with exim_uid */
318 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
319 extern uschar *exim_path; /* Path to exec exim */
320 extern uid_t exim_uid; /* Non-root uid for exim */
321 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
322 extern int expand_forbid; /* RDO flags for forbidding things */
323 extern int expand_nlength[]; /* Lengths of numbered strings */
324 extern int expand_nmax; /* Max numerical value */
325 extern uschar *expand_nstring[]; /* Numbered strings */
326 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
327 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
328 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
330 extern int fake_response; /* Fake FAIL or DEFER response to data */
331 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
332 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
333 extern BOOL filter_running; /* TRUE while running a filter */
334 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
335 extern int filter_test; /* Filter test type */
336 extern uschar *filter_test_sfile; /* System filter test file */
337 extern uschar *filter_test_ufile; /* User filter test file */
338 extern uschar *filter_thisaddress; /* For address looping */
339 extern int finduser_retries; /* Retry count for getpwnam() */
340 extern uid_t fixed_never_users[]; /* Can't be overridden */
341 #ifdef WITH_OLD_DEMIME
342 extern uschar *found_extension; /* demime acl condition: file extension found */
344 extern uschar *freeze_tell; /* Message on (some) freezings */
345 extern uschar *freeze_tell_config; /* The configured setting */
346 extern uschar *fudged_queue_times; /* For use in test harness */
348 extern uschar *gecos_name; /* To be expanded when pattern matches */
349 extern uschar *gecos_pattern; /* Pattern to match */
350 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
352 extern int header_insert_maxlen; /* Max for inserting headers */
353 extern int header_maxsize; /* Max total length for header */
354 extern int header_line_maxsize; /* Max for an individual line */
355 extern header_name header_names[]; /* Table of header names */
356 extern int header_names_size; /* Number of entries */
357 extern BOOL header_rewritten; /* TRUE if header changed by router */
358 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
359 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
360 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
361 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
362 extern BOOL helo_verified; /* True if HELO verified */
363 extern BOOL helo_verify_failed; /* True if attempt failed */
364 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
365 extern uschar *hex_digits; /* Used in several places */
366 extern uschar *hold_domains; /* Hold up deliveries to these */
367 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
368 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
369 extern uschar *host_data; /* Obtained from lookup in ACL */
370 extern uschar *host_lookup; /* For which IP addresses are always looked up */
371 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
372 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
373 extern uschar *host_lookup_order; /* Order of host lookup types */
374 extern uschar *host_lookup_msg; /* Text for why it failed */
375 extern int host_number; /* For sharing spools */
376 extern uschar *host_number_string; /* For expanding */
377 extern uschar *host_reject_connection; /* Reject these hosts */
378 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
379 extern int hostlist_count; /* Number defined */
380 extern uschar *hosts_connection_nolog; /* Limits the logging option */
381 extern uschar *hosts_treat_as_local; /* For routing */
383 extern int ignore_bounce_errors_after; /* Keep them for this time. */
384 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
385 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
386 extern BOOL is_inetd; /* True for inetd calls */
388 extern int journal_fd; /* Fd for journal file */
390 extern int keep_malformed; /* Time to keep malformed messages */
392 extern uschar *eldap_dn; /* Where LDAP DNs are left */
393 extern int load_average; /* Most recently read load average */
394 extern BOOL local_error_message; /* True if handling one of these */
395 extern BOOL local_from_check; /* For adding Sender: (global value) */
396 extern uschar *local_from_prefix; /* Permitted prefixes */
397 extern uschar *local_from_suffix; /* Permitted suffixes */
398 extern uschar *local_interfaces; /* For forcing specific interfaces */
399 extern uschar *local_scan_data; /* Text returned by local_scan() */
400 extern optionlist local_scan_options[];/* Option list for local_scan() */
401 extern int local_scan_options_count; /* Size of the list */
402 extern int local_scan_timeout; /* Timeout for local_scan() */
403 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
404 extern gid_t local_user_gid; /* As it says; may be set in routers */
405 extern uid_t local_user_uid; /* As it says; may be set in routers */
406 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
407 extern int localpartlist_count; /* Number defined */
408 extern uschar *log_buffer; /* For constructing log entries */
409 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
410 extern uschar *log_file_path; /* If unset, use default */
411 extern bit_table log_options[]; /* Table of options */
412 extern int log_options_count; /* Size of table */
413 extern int log_reject_target; /* Target log for ACL rejections */
414 extern uschar *log_selector_string; /* As supplied in the config */
415 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
416 extern BOOL log_testing_mode; /* TRUE in various testing modes */
417 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
418 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
419 extern uschar *login_sender_address; /* The actual sender address */
420 extern lookup_info lookup_list[]; /* Vector of available lookups */
421 extern int lookup_list_count; /* Number of entries in the list */
422 extern int lookup_open_max; /* Max lookup files to cache */
423 extern uschar *lookup_value; /* Value looked up from file */
425 extern macro_item *macros; /* Configuration macros */
426 extern uschar *mailstore_basename; /* For mailstore deliveries */
427 #ifdef WITH_CONTENT_SCAN
428 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
430 extern int max_username_length; /* For systems with broken getpwnam() */
431 extern int message_age; /* In seconds */
432 extern uschar *message_body; /* Start of message body for filter */
433 extern uschar *message_body_end; /* End of message body for filter */
434 extern int message_body_size; /* Sic */
435 extern int message_body_visible; /* Amount visible in message_body */
436 extern int message_ended; /* State of message reading and how ended */
437 extern uschar *message_headers; /* When built */
438 extern uschar message_id_option[]; /* -E<message-id> for use as option */
439 extern uschar *message_id_external; /* External form of following */
440 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
441 extern uschar *message_id_text; /* Expanded to form message_id */
442 extern struct timeval message_id_tv; /* Time used to create last message_id */
443 extern int message_linecount; /* As it says */
444 extern BOOL message_logs; /* TRUE to write message logs */
445 extern int message_size; /* Size of message */
446 extern uschar *message_size_limit; /* As it says */
447 extern uschar message_subdir[]; /* Subdirectory for messages */
448 extern uschar *message_reference; /* Reference for error messages */
450 /* MIME ACL expandables */
451 #ifdef WITH_CONTENT_SCAN
452 extern int mime_anomaly_level;
453 extern uschar *mime_anomaly_text;
454 extern uschar *mime_boundary;
455 extern uschar *mime_charset;
456 extern uschar *mime_content_description;
457 extern uschar *mime_content_disposition;
458 extern uschar *mime_content_id;
459 extern unsigned int mime_content_size;
460 extern uschar *mime_content_transfer_encoding;
461 extern uschar *mime_content_type;
462 extern uschar *mime_decoded_filename;
463 extern uschar *mime_filename;
464 extern int mime_is_multipart;
465 extern int mime_is_coverletter;
466 extern int mime_is_rfc822;
467 extern int mime_part_count;
470 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
472 extern uid_t *never_users; /* List of uids never to be used */
473 #ifdef WITH_CONTENT_SCAN
474 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
476 extern BOOL no_multiline_responses; /* For broken clients */
478 extern optionlist optionlist_auths[]; /* These option lists are made */
479 extern int optionlist_auths_size; /* global so that readconf can */
480 extern optionlist optionlist_routers[]; /* see them for printing out */
481 extern int optionlist_routers_size; /* the options. */
482 extern optionlist optionlist_transports[];
483 extern int optionlist_transports_size;
485 extern uid_t original_euid; /* Original effective uid */
486 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
487 extern uschar *originator_login; /* Login of same */
488 extern uschar *originator_name; /* Full name of same */
489 extern uid_t originator_uid; /* Uid of ditto */
490 extern uschar *override_local_interfaces; /* Value of -oX argument */
491 extern uschar *override_pid_file_path; /* Value of -oP argument */
493 extern BOOL parse_allow_group; /* Allow group syntax */
494 extern BOOL parse_found_group; /* In the middle of a group */
495 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
496 extern uschar *pid_file_path; /* For writing daemon pids */
497 extern uschar *pipelining_advertise_hosts; /* As it says */
498 extern BOOL pipelining_enable; /* As it says */
499 extern BOOL preserve_message_logs; /* Save msglog files */
500 extern uschar *primary_hostname; /* Primary name of this computer */
501 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
502 extern uschar process_info[]; /* For SIGUSR1 output */
503 extern uschar *process_log_path; /* Alternate path */
504 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
505 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
506 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
507 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
509 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
510 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
511 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
512 extern uschar *queue_domains; /* Queue these domains */
513 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
514 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
515 extern BOOL queue_run_force; /* TRUE to force during queue run */
516 extern BOOL queue_run_local; /* Local deliveries only in queue run */
517 extern BOOL queue_running; /* TRUE for queue running process and */
518 /* immediate children */
519 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
520 extern int queue_run_pipe; /* Pipe for synchronizing */
521 extern int queue_interval; /* Queue running interval */
522 extern BOOL queue_only; /* TRUE to disable immediate delivery */
523 extern int queue_only_load; /* Max load before auto-queue */
524 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
525 extern BOOL queue_only_override; /* Allow override from command line */
526 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
527 extern BOOL queue_run_in_order; /* As opposed to random */
528 extern int queue_run_max; /* Max queue runners */
529 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
530 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
532 extern unsigned int random_seed; /* Seed for random numbers */
533 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
534 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
535 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
536 extern uschar *raw_active_hostname; /* Pre-expansion */
537 extern uschar *raw_sender; /* Before rewriting */
538 extern uschar **raw_recipients; /* Before rewriting */
539 extern int raw_recipients_count;
540 extern int rcpt_count; /* Count of RCPT commands in a message */
541 extern int rcpt_fail_count; /* Those that got 5xx */
542 extern int rcpt_defer_count; /* Those that got 4xx */
543 extern gid_t real_gid; /* Real gid */
544 extern uid_t real_uid; /* Real user running program */
545 extern BOOL really_exim; /* FALSE in utilities */
546 extern BOOL receive_call_bombout; /* Flag for crashing log */
547 extern int receive_linecount; /* Mainly for BSMTP errors */
548 extern int receive_messagecount; /* Mainly for BSMTP errors */
549 extern int receive_timeout; /* For non-SMTP acceptance */
550 extern int received_count; /* Count of Received: headers */
551 extern uschar *received_for; /* For "for" field */
552 extern uschar *received_header_text; /* Definition of Received: header */
553 extern int received_headers_max; /* Max count of Received: headers */
554 extern int received_time; /* Time the message was received */
555 extern uschar *recipient_data; /* lookup data for recipients */
556 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
557 extern uschar *recipient_verify_failure; /* What went wrong */
558 extern BOOL recipients_discarded; /* By an ACL */
559 extern int recipients_list_max; /* Maximum number fitting in list */
560 extern int recipients_max; /* Max permitted */
561 extern int recipients_max_reject; /* If TRUE, reject whole message */
562 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
563 extern const pcre *regex_check_dns_names; /* For DNS name checking */
564 extern const pcre *regex_From; /* For recognizing "From_" lines */
565 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
566 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
567 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
568 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
569 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
570 #ifdef WITH_CONTENT_SCAN
571 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
573 extern int remote_delivery_count; /* Number of remote addresses */
574 extern int remote_max_parallel; /* Maximum parallel delivery */
575 extern uschar *remote_sort_domains; /* Remote domain sorting order */
576 extern retry_config *retries; /* Chain of retry config information */
577 extern int retry_data_expire; /* When to expire retry data */
578 extern int retry_interval_max; /* Absolute maximum */
579 extern int retry_maximum_timeout; /* The maximum timeout */
580 extern uschar *return_path; /* Return path for a message */
581 extern BOOL return_path_remove; /* Remove return-path headers */
582 extern int rewrite_existflags; /* Indicate which headers have rewrites */
583 extern uschar *rfc1413_hosts; /* RFC hosts */
584 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
585 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
586 extern uid_t root_uid; /* The uid for root */
587 extern router_info routers_available[];/* Vector of available routers */
588 extern router_instance *routers; /* Chain of instantiated routers */
589 extern router_instance router_defaults;/* Default values */
590 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
591 extern ip_address_item *running_interfaces; /* Host's running interfaces */
592 extern uschar *running_status; /* Flag string for testing */
593 extern int runrc; /* rc from ${run} */
595 extern uschar *search_error_message; /* Details of lookup problem */
596 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
597 extern uschar *self_hostname; /* Self host after routing->directors */
598 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
599 extern uschar *sender_address_data; /* address_data from sender verify */
600 extern BOOL sender_address_forced; /* Set by -f */
601 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
602 extern uschar *sender_data; /* lookup result for senders */
603 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
604 extern uschar *sender_fullhost; /* Sender host name + address */
605 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
606 extern uschar **sender_host_aliases; /* Points to list of alias names */
607 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
608 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
609 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
610 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
611 extern BOOL sender_local; /* TRUE for local senders */
612 extern BOOL sender_name_forced; /* Set by -F */
613 extern uschar *sender_rate; /* Sender rate computed by ACL */
614 extern uschar *sender_rate_limit; /* Configured rate limit */
615 extern uschar *sender_rate_period; /* Configured smoothing period */
616 extern uschar *sender_rcvhost; /* Host data for Received: */
617 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
618 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
619 extern uschar *sender_verify_failure; /* What went wrong */
620 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
621 extern address_item *sender_verified_failed; /* The one that caused denial */
622 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
623 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
624 extern int smtp_accept_count; /* Count of connections */
625 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
626 extern int smtp_accept_max; /* Max SMTP connections */
627 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
628 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
629 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
630 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
631 extern int smtp_accept_queue; /* Queue after so many connections */
632 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
633 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
634 extern uschar *smtp_active_hostname; /* Hostname for this message */
635 extern BOOL smtp_authenticated; /* Sending client has authenticated */
636 extern uschar *smtp_banner; /* Banner string (to be expanded) */
637 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
638 extern int smtp_ch_index; /* Index in smtp_connection_had */
639 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
640 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
641 extern time_t smtp_connection_start; /* Start time of SMTP connection */
642 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
643 extern int smtp_connect_backlog; /* Max backlog permitted */
644 extern double smtp_delay_mail; /* Current MAIL delay */
645 extern double smtp_delay_rcpt; /* Current RCPT delay */
646 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
647 extern uschar *smtp_etrn_command; /* Command to run */
648 extern BOOL smtp_etrn_serialize; /* Only one at once */
649 extern FILE *smtp_in; /* Incoming SMTP input file */
650 extern int smtp_load_reserve; /* Only from reserved if load > this */
651 extern int smtp_mailcmd_count; /* Count of MAIL commands */
652 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
653 extern int smtp_max_unknown_commands; /* As it says */
654 extern FILE *smtp_out; /* Incoming SMTP output file */
655 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
656 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
657 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
658 extern uschar *smtp_read_error; /* Message for SMTP input error */
659 extern int smtp_receive_timeout; /* Applies to each received line */
660 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
661 extern BOOL smtp_return_error_details; /* TRUE to return full info */
662 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
663 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
664 extern int smtp_rlm_limit; /* Max delay */
665 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
666 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
667 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
668 extern int smtp_rlr_limit; /* Max delay */
669 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
670 extern BOOL smtp_use_pipelining; /* Global for passed connections */
671 extern BOOL smtp_use_size; /* Global for passed connections */
673 #ifdef WITH_CONTENT_SCAN
674 extern uschar *spamd_address; /* address for the spamassassin daemon */
675 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
676 extern uschar *spam_report; /* the spamd report (multiline) */
677 extern uschar *spam_score; /* the spam score (float) */
678 extern uschar *spam_score_int; /* spam_score * 10 (int) */
680 #ifdef EXPERIMENTAL_SPF
681 extern uschar *spf_header_comment; /* spf header comment */
682 extern uschar *spf_received; /* SPF-Received: header */
683 extern uschar *spf_result; /* spf result in string form */
684 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
686 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
687 extern uschar *spool_directory; /* Name of spool directory */
688 #ifdef EXPERIMENTAL_SRS
689 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
690 extern uschar *srs_db_address; /* SRS db address */
691 extern uschar *srs_db_key; /* SRS db key */
692 extern int srs_hashlength; /* SRS hash length */
693 extern int srs_hashmin; /* SRS minimum hash length */
694 extern int srs_maxage; /* SRS max age */
695 extern uschar *srs_orig_sender; /* SRS original sender */
696 extern uschar *srs_orig_recipient; /* SRS original recipient */
697 extern uschar *srs_recipient; /* SRS recipient */
698 extern uschar *srs_secrets; /* SRS secrets list */
699 extern uschar *srs_status; /* SRS staus */
700 extern BOOL srs_usehash; /* SRS use hash flag */
701 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
703 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
704 extern int string_datestamp_offset;/* After insertion by string_format */
705 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
706 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
707 extern uschar *submission_domain; /* Domain for submission mode */
708 extern BOOL submission_mode; /* Can be forced from ACL */
709 extern uschar *submission_name; /* User name set from ACL */
710 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
711 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
712 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
713 extern int syslog_facility; /* As defined by Syslog.h */
714 extern uschar *syslog_processname; /* 'ident' param to openlog() */
715 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
716 extern uschar *system_filter; /* Name of system filter file */
718 extern uschar *system_filter_directory_transport; /* Transports for the */
719 extern uschar *system_filter_file_transport; /* system filter */
720 extern uschar *system_filter_pipe_transport;
721 extern uschar *system_filter_reply_transport;
723 extern gid_t system_filter_gid; /* Gid for running system filter */
724 extern BOOL system_filter_gid_set; /* TRUE if gid set */
725 extern uid_t system_filter_uid; /* Uid for running system filter */
726 extern BOOL system_filter_uid_set; /* TRUE if uid set */
727 extern BOOL system_filtering; /* TRUE when running system filter */
729 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
730 extern int thismessage_size_limit; /* Limit for this message */
731 extern int timeout_frozen_after; /* Max time to keep frozen messages */
732 extern BOOL timestamps_utc; /* Use UTC for all times */
733 extern int transport_count; /* Count of bytes transported */
734 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
735 extern int transport_filter_timeout; /* Timeout for same */
736 extern BOOL transport_filter_timed_out; /* True if it did */
738 extern transport_info transports_available[]; /* Vector of available transports */
739 extern transport_instance *transports; /* Chain of instantiated transports */
740 extern transport_instance transport_defaults; /* Default values */
742 extern int transport_write_timeout;/* Set to time out individual writes */
744 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
745 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
746 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
747 extern tree_node *tree_unusable; /* Tree of unusable addresses */
749 extern BOOL trusted_caller; /* Caller is trusted */
750 extern gid_t *trusted_groups; /* List of trusted groups */
751 extern uid_t *trusted_users; /* List of trusted users */
752 extern uschar *timezone_string; /* Required timezone setting */
754 extern uschar *unknown_login; /* To use when login id unknown */
755 extern uschar *unknown_username; /* Ditto */
756 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
757 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
758 extern uschar *uucp_from_sender; /* For building the sender */
760 extern uschar *warn_message_file; /* Template for warning messages */
761 extern uschar *warnmsg_delay; /* String form of delay time */
762 extern uschar *warnmsg_recipients; /* Recipients of warning message */
763 extern BOOL write_rejectlog; /* Control of reject logging */
765 extern uschar *version_copyright; /* Copyright notice */
766 extern uschar *version_date; /* Date of compilation */
767 extern uschar *version_cnumber; /* Compile number */
768 extern uschar *version_string; /* Version string */
770 extern int warning_count; /* Delay warnings sent for this msg */
772 /* End of globals.h */
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