1 /* $Cambridge: exim/src/src/globals.h,v 1.66 2009/10/16 09:51:12 nm4 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 BOOL gnutls_compat_mode; /* Less security, more compatibility */
75 extern uschar *gnutls_require_mac; /* So some can be avoided */
76 extern uschar *gnutls_require_kx; /* So some can be avoided */
77 extern uschar *gnutls_require_proto; /* So some can be avoided */
78 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
79 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
80 extern uschar *tls_certificate; /* Certificate file */
81 extern uschar *tls_crl; /* CRL File */
82 extern uschar *tls_dhparam; /* DH param file */
83 extern BOOL tls_offered; /* Server offered TLS */
84 extern uschar *tls_privatekey; /* Private key file */
85 extern BOOL tls_remember_esmtp; /* For YAEB */
86 extern uschar *tls_require_ciphers; /* So some can be avoided */
87 extern uschar *tls_try_verify_hosts; /* Optional client verification */
88 extern uschar *tls_verify_certificates;/* Path for certificates to check */
89 extern uschar *tls_verify_hosts; /* Mandatory client verification */
93 /* Input-reading functions for messages, so we can use special ones for
96 extern int (*receive_getc)(void);
97 extern int (*receive_ungetc)(int);
98 extern int (*receive_feof)(void);
99 extern int (*receive_ferror)(void);
100 extern BOOL (*receive_smtp_buffered)(void);
103 /* For clearing, saving, restoring address expansion variables. We have to have
104 the size of this vector set explicitly, because it is referenced from more than
107 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
109 /* General global variables */
111 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
112 extern header_line *acl_added_headers; /* Headers added by an ACL */
113 extern tree_node *acl_anchor; /* Tree of named ACLs */
114 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
115 #ifdef WITH_CONTENT_SCAN
116 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
118 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
119 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
120 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
121 extern uschar *acl_smtp_data; /* ACL run after DATA received */
123 extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */
125 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
126 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
127 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
128 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
129 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
130 #ifdef WITH_CONTENT_SCAN
131 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
133 extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
134 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
135 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
136 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
137 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
138 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
139 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
140 extern tree_node *acl_var_c; /* ACL connection variables */
141 extern tree_node *acl_var_m; /* ACL messsage variables */
142 extern uschar *acl_verify_message; /* User message for verify failure */
143 extern string_item *acl_warn_logged; /* Logged lines */
144 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
145 extern uschar *acl_wherenames[]; /* Names for messages */
146 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
147 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
148 extern address_item *addr_duplicate; /* Duplicate address list */
149 extern address_item address_defaults; /* Default data for address item */
150 extern uschar *address_file; /* Name of file when delivering to one */
151 extern uschar *address_pipe; /* Pipe command when delivering to one */
152 extern BOOL address_test_mode; /* True for -bt */
153 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
154 extern int addresslist_count; /* Number defined */
155 extern gid_t *admin_groups; /* List of admin groups */
156 extern BOOL admin_user; /* True if caller can do admin */
157 extern BOOL allow_auth_unadvertised;/* As it says */
158 extern BOOL allow_domain_literals; /* As it says */
159 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
160 extern BOOL allow_unqualified_recipient; /* As it says */
161 extern BOOL allow_unqualified_sender; /* Ditto */
162 extern BOOL allow_utf8_domains; /* For experimenting */
163 extern uschar *authenticated_id; /* ID that was authenticated */
164 extern uschar *authenticated_sender; /* From AUTH on MAIL */
165 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
166 extern uschar *auth_advertise_hosts; /* Only advertise to these */
167 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
168 extern auth_instance *auths; /* Chain of instantiated auths */
169 extern auth_instance auth_defaults; /* Default values */
170 extern uschar *auth_defer_msg; /* Error message for log */
171 extern uschar *auth_defer_user_msg; /* Error message for user */
172 extern uschar *auth_vars[]; /* $authn variables */
173 extern int auto_thaw; /* Auto-thaw interval */
174 #ifdef WITH_CONTENT_SCAN
175 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
178 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
179 extern uschar *base62_chars; /* Table of base-62 characters */
180 extern uschar *bi_command; /* Command for -bi option */
181 extern uschar *big_buffer; /* Used for various temp things */
182 extern int big_buffer_size; /* Current size (can expand) */
183 #ifdef EXPERIMENTAL_BRIGHTMAIL
184 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
185 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
186 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
187 extern uschar *bmi_config_file; /* Brightmail config file */
188 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
189 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
190 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
192 extern uschar *bounce_message_file; /* Template file */
193 extern uschar *bounce_message_text; /* One-liner */
194 extern uschar *bounce_recipient; /* When writing an errmsg */
195 extern BOOL bounce_return_body; /* Include body in returned message */
196 extern BOOL bounce_return_message; /* Include message in bounce */
197 extern int bounce_return_size_limit; /* Max amount to return */
198 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
199 extern int bsmtp_transaction_linecount; /* Start of last transaction */
201 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
202 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
203 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
204 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
205 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
206 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
207 extern int check_log_inodes; /* Minimum for message acceptance */
208 extern int check_log_space; /* Minimum for message acceptance */
209 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
210 extern int check_spool_inodes; /* Minimum for message acceptance */
211 extern int check_spool_space; /* Minimum for message acceptance */
212 extern int clmacro_count; /* Number of command line macros */
213 extern uschar *clmacros[]; /* Copy of them, for re-exec */
214 extern int connection_max_messages;/* Max down one SMTP connection */
215 extern BOOL config_changed; /* True if -C used */
216 extern FILE *config_file; /* Configuration file */
217 extern uschar *config_filename; /* Configuration file name */
218 #ifdef CONFIGURE_GROUP
219 extern gid_t config_gid; /* Additional group owner */
221 extern int config_lineno; /* Line number */
222 extern uschar *config_main_filelist; /* List of possible config files */
223 extern uschar *config_main_filename; /* File name actually used */
224 #ifdef CONFIGURE_OWNER
225 extern uid_t config_uid; /* Additional owner */
227 extern uschar *continue_hostname; /* Host for continued delivery */
228 extern uschar *continue_host_address; /* IP address for ditto */
229 extern BOOL continue_more; /* Flag more addresses waiting */
230 extern int continue_sequence; /* Sequence num for continued delivery */
231 extern uschar *continue_transport; /* Transport for continued delivery */
233 extern uschar *csa_status; /* Client SMTP Authorization result */
235 extern BOOL daemon_listen; /* True if listening required */
236 extern uschar *daemon_smtp_port; /* Can be a list of ports */
237 extern int daemon_startup_retries; /* Number of times to retry */
238 extern int daemon_startup_sleep; /* Sleep between retries */
240 #ifdef EXPERIMENTAL_DCC
241 extern BOOL dcc_direct_add_header; /* directly add header */
242 extern uschar *dcc_header; /* dcc header */
243 extern uschar *dcc_result; /* dcc result */
244 extern uschar *dccifd_address; /* address of the dccifd daemon */
245 extern uschar *dccifd_options; /* options for the dccifd daemon */
248 extern BOOL debug_daemon; /* Debug the daemon process only */
249 extern int debug_fd; /* The fd for debug_file */
250 extern FILE *debug_file; /* Where to write debugging info */
251 extern bit_table debug_options[]; /* Table of debug options */
252 extern int debug_options_count; /* Size of table */
253 extern int delay_warning[]; /* Times between warnings */
254 extern uschar *delay_warning_condition; /* Condition string for warnings */
255 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
257 extern uschar *deliver_address_data; /* Arbitrary data for an address */
258 extern int deliver_datafile; /* FD for data part of message */
259 extern uschar *deliver_domain; /* The local domain for delivery */
260 extern uschar *deliver_domain_data; /* From domain lookup */
261 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
262 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
263 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
264 extern BOOL deliver_firsttime; /* True for first delivery attempt */
265 extern BOOL deliver_force; /* TRUE if delivery was forced */
266 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
267 extern int deliver_frozen_at; /* Time of freezing */
268 extern uschar *deliver_home; /* Home directory for pipes */
269 extern uschar *deliver_host; /* (First) host for routed local deliveries */
270 /* Remote host for filter */
271 extern uschar *deliver_host_address; /* Address for remote delivery filter */
272 extern uschar *deliver_in_buffer; /* Buffer for copying file */
273 extern ino_t deliver_inode; /* Inode for appendfile */
274 extern uschar *deliver_localpart; /* The local part for delivery */
275 extern uschar *deliver_localpart_data; /* From local part lookup */
276 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
277 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
278 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
279 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
280 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
281 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
282 extern uschar *deliver_out_buffer; /* Buffer for copying file */
283 extern int deliver_queue_load_max; /* Different value for queue running */
284 extern address_item *deliver_recipients; /* Current set of addresses */
285 extern uschar *deliver_selectstring; /* For selecting by recipient */
286 extern BOOL deliver_selectstring_regex; /* String is regex */
287 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
288 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
289 #ifdef WITH_OLD_DEMIME
290 extern int demime_errorlevel; /* Severity of MIME error */
291 extern int demime_ok; /* Nonzero if message has been demimed */
292 extern uschar *demime_reason; /* Reason for broken MIME container */
294 extern BOOL disable_callout_flush; /* Don't flush before callouts */
295 extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
296 #ifdef ENABLE_DISABLE_FSYNC
297 extern BOOL disable_fsync; /* Not for normal use */
299 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
300 extern BOOL disable_logging; /* Disables log writing when TRUE */
303 extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
304 extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
305 extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
306 extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
307 extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
308 extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
309 extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
312 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
313 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
314 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
315 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
316 extern int dns_retrans; /* Retransmission time setting */
317 extern int dns_retry; /* Number of retries */
318 extern uschar *dnslist_domain; /* DNS (black) list domain */
319 extern uschar *dnslist_matched; /* DNS (black) list matched key */
320 extern uschar *dnslist_text; /* DNS (black) list text message */
321 extern uschar *dnslist_value; /* DNS (black) list IP address */
322 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
323 extern int domainlist_count; /* Number defined */
324 extern BOOL dont_deliver; /* TRUE for -N option */
325 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
327 /* This option is now a no-opt, retained for compatibility */
328 extern BOOL drop_cr; /* For broken local MUAs */
330 extern uschar *dsn_from; /* From: string for DSNs */
332 extern BOOL enable_dollar_recipients; /* Make $recipients available */
333 extern int envelope_to_remove; /* Remove envelope_to_headers */
334 extern int errno_quota; /* Quota errno in this OS */
335 extern int error_handling; /* Error handling style */
336 extern uschar *errors_copy; /* For taking copies of errors */
337 extern uschar *errors_reply_to; /* Reply-to for error messages */
338 extern int errors_sender_rc; /* Return after message to sender*/
339 extern gid_t exim_gid; /* To be used with exim_uid */
340 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
341 extern uschar *exim_path; /* Path to exec exim */
342 extern uid_t exim_uid; /* Non-root uid for exim */
343 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
344 extern int expand_forbid; /* RDO flags for forbidding things */
345 extern int expand_nlength[]; /* Lengths of numbered strings */
346 extern int expand_nmax; /* Max numerical value */
347 extern uschar *expand_nstring[]; /* Numbered strings */
348 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
349 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
350 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
352 extern int fake_response; /* Fake FAIL or DEFER response to data */
353 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
354 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
355 extern BOOL filter_running; /* TRUE while running a filter */
356 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
357 extern int filter_test; /* Filter test type */
358 extern uschar *filter_test_sfile; /* System filter test file */
359 extern uschar *filter_test_ufile; /* User filter test file */
360 extern uschar *filter_thisaddress; /* For address looping */
361 extern int finduser_retries; /* Retry count for getpwnam() */
362 extern uid_t fixed_never_users[]; /* Can't be overridden */
363 #ifdef WITH_OLD_DEMIME
364 extern uschar *found_extension; /* demime acl condition: file extension found */
366 extern uschar *freeze_tell; /* Message on (some) freezings */
367 extern uschar *freeze_tell_config; /* The configured setting */
368 extern uschar *fudged_queue_times; /* For use in test harness */
370 extern uschar *gecos_name; /* To be expanded when pattern matches */
371 extern uschar *gecos_pattern; /* Pattern to match */
372 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
374 extern int header_insert_maxlen; /* Max for inserting headers */
375 extern int header_maxsize; /* Max total length for header */
376 extern int header_line_maxsize; /* Max for an individual line */
377 extern header_name header_names[]; /* Table of header names */
378 extern int header_names_size; /* Number of entries */
379 extern BOOL header_rewritten; /* TRUE if header changed by router */
380 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
381 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
382 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
383 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
384 extern BOOL helo_verified; /* True if HELO verified */
385 extern BOOL helo_verify_failed; /* True if attempt failed */
386 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
387 extern uschar *hex_digits; /* Used in several places */
388 extern uschar *hold_domains; /* Hold up deliveries to these */
389 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
390 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
391 extern uschar *host_data; /* Obtained from lookup in ACL */
392 extern uschar *host_lookup; /* For which IP addresses are always looked up */
393 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
394 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
395 extern uschar *host_lookup_order; /* Order of host lookup types */
396 extern uschar *host_lookup_msg; /* Text for why it failed */
397 extern int host_number; /* For sharing spools */
398 extern uschar *host_number_string; /* For expanding */
399 extern uschar *host_reject_connection; /* Reject these hosts */
400 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
401 extern int hostlist_count; /* Number defined */
402 extern uschar *hosts_connection_nolog; /* Limits the logging option */
403 extern uschar *hosts_treat_as_local; /* For routing */
405 extern int ignore_bounce_errors_after; /* Keep them for this time. */
406 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
407 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
408 extern BOOL is_inetd; /* True for inetd calls */
409 extern uschar *iterate_item; /* Item from iterate list */
411 extern int journal_fd; /* Fd for journal file */
413 extern int keep_malformed; /* Time to keep malformed messages */
415 extern uschar *eldap_dn; /* Where LDAP DNs are left */
416 extern int load_average; /* Most recently read load average */
417 extern BOOL local_error_message; /* True if handling one of these */
418 extern BOOL local_from_check; /* For adding Sender: (global value) */
419 extern uschar *local_from_prefix; /* Permitted prefixes */
420 extern uschar *local_from_suffix; /* Permitted suffixes */
421 extern uschar *local_interfaces; /* For forcing specific interfaces */
422 extern uschar *local_scan_data; /* Text returned by local_scan() */
423 extern optionlist local_scan_options[];/* Option list for local_scan() */
424 extern int local_scan_options_count; /* Size of the list */
425 extern int local_scan_timeout; /* Timeout for local_scan() */
426 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
427 extern gid_t local_user_gid; /* As it says; may be set in routers */
428 extern uid_t local_user_uid; /* As it says; may be set in routers */
429 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
430 extern int localpartlist_count; /* Number defined */
431 extern uschar *log_buffer; /* For constructing log entries */
432 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
433 extern uschar *log_file_path; /* If unset, use default */
434 extern bit_table log_options[]; /* Table of options */
435 extern int log_options_count; /* Size of table */
436 extern int log_reject_target; /* Target log for ACL rejections */
437 extern uschar *log_selector_string; /* As supplied in the config */
438 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
439 extern BOOL log_testing_mode; /* TRUE in various testing modes */
440 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
441 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
442 extern uschar *login_sender_address; /* The actual sender address */
443 extern lookup_info lookup_list[]; /* Vector of available lookups */
444 extern int lookup_list_count; /* Number of entries in the list */
445 extern int lookup_open_max; /* Max lookup files to cache */
446 extern uschar *lookup_value; /* Value looked up from file */
448 extern macro_item *macros; /* Configuration macros */
449 extern uschar *mailstore_basename; /* For mailstore deliveries */
450 #ifdef WITH_CONTENT_SCAN
451 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
453 extern int max_received_linelength;/* What it says */
454 extern int max_username_length; /* For systems with broken getpwnam() */
455 extern int message_age; /* In seconds */
456 extern uschar *message_body; /* Start of message body for filter */
457 extern uschar *message_body_end; /* End of message body for filter */
458 extern BOOL message_body_newlines; /* FALSE => remove newlines */
459 extern int message_body_size; /* Sic */
460 extern int message_body_visible; /* Amount visible in message_body */
461 extern int message_ended; /* State of message reading and how ended */
462 extern uschar *message_headers; /* When built */
463 extern uschar message_id_option[]; /* -E<message-id> for use as option */
464 extern uschar *message_id_external; /* External form of following */
465 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
466 extern uschar *message_id_text; /* Expanded to form message_id */
467 extern struct timeval message_id_tv; /* Time used to create last message_id */
468 extern int message_linecount; /* As it says */
469 extern BOOL message_logs; /* TRUE to write message logs */
470 extern int message_size; /* Size of message */
471 extern uschar *message_size_limit; /* As it says */
472 extern uschar message_subdir[]; /* Subdirectory for messages */
473 extern uschar *message_reference; /* Reference for error messages */
475 /* MIME ACL expandables */
476 #ifdef WITH_CONTENT_SCAN
477 extern int mime_anomaly_level;
478 extern uschar *mime_anomaly_text;
479 extern uschar *mime_boundary;
480 extern uschar *mime_charset;
481 extern uschar *mime_content_description;
482 extern uschar *mime_content_disposition;
483 extern uschar *mime_content_id;
484 extern unsigned int mime_content_size;
485 extern uschar *mime_content_transfer_encoding;
486 extern uschar *mime_content_type;
487 extern uschar *mime_decoded_filename;
488 extern uschar *mime_filename;
489 extern int mime_is_multipart;
490 extern int mime_is_coverletter;
491 extern int mime_is_rfc822;
492 extern int mime_part_count;
495 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
497 extern uid_t *never_users; /* List of uids never to be used */
498 #ifdef WITH_CONTENT_SCAN
499 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
501 extern BOOL no_multiline_responses; /* For broken clients */
503 extern optionlist optionlist_auths[]; /* These option lists are made */
504 extern int optionlist_auths_size; /* global so that readconf can */
505 extern optionlist optionlist_routers[]; /* see them for printing out */
506 extern int optionlist_routers_size; /* the options. */
507 extern optionlist optionlist_transports[];
508 extern int optionlist_transports_size;
510 extern uid_t original_euid; /* Original effective uid */
511 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
512 extern uschar *originator_login; /* Login of same */
513 extern uschar *originator_name; /* Full name of same */
514 extern uid_t originator_uid; /* Uid of ditto */
515 extern uschar *override_local_interfaces; /* Value of -oX argument */
516 extern uschar *override_pid_file_path; /* Value of -oP argument */
518 extern BOOL parse_allow_group; /* Allow group syntax */
519 extern BOOL parse_found_group; /* In the middle of a group */
520 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
521 extern uschar *pid_file_path; /* For writing daemon pids */
522 extern uschar *pipelining_advertise_hosts; /* As it says */
523 extern BOOL pipelining_enable; /* As it says */
524 extern BOOL preserve_message_logs; /* Save msglog files */
525 extern uschar *primary_hostname; /* Primary name of this computer */
526 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
527 extern uschar process_info[]; /* For SIGUSR1 output */
528 extern uschar *process_log_path; /* Alternate path */
529 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
530 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
531 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
532 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
534 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
535 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
536 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
537 extern uschar *queue_domains; /* Queue these domains */
538 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
539 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
540 extern BOOL queue_run_force; /* TRUE to force during queue run */
541 extern BOOL queue_run_local; /* Local deliveries only in queue run */
542 extern BOOL queue_running; /* TRUE for queue running process and */
543 /* immediate children */
544 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
545 extern int queue_run_pipe; /* Pipe for synchronizing */
546 extern int queue_interval; /* Queue running interval */
547 extern BOOL queue_only; /* TRUE to disable immediate delivery */
548 extern int queue_only_load; /* Max load before auto-queue */
549 extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
550 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
551 extern BOOL queue_only_override; /* Allow override from command line */
552 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
553 extern BOOL queue_run_in_order; /* As opposed to random */
554 extern int queue_run_max; /* Max queue runners */
555 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
556 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
558 extern unsigned int random_seed; /* Seed for random numbers */
559 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
560 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
561 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
562 extern uschar *raw_active_hostname; /* Pre-expansion */
563 extern uschar *raw_sender; /* Before rewriting */
564 extern uschar **raw_recipients; /* Before rewriting */
565 extern int raw_recipients_count;
566 extern int rcpt_count; /* Count of RCPT commands in a message */
567 extern int rcpt_fail_count; /* Those that got 5xx */
568 extern int rcpt_defer_count; /* Those that got 4xx */
569 extern gid_t real_gid; /* Real gid */
570 extern uid_t real_uid; /* Real user running program */
571 extern BOOL really_exim; /* FALSE in utilities */
572 extern BOOL receive_call_bombout; /* Flag for crashing log */
573 extern int receive_linecount; /* Mainly for BSMTP errors */
574 extern int receive_messagecount; /* Mainly for BSMTP errors */
575 extern int receive_timeout; /* For non-SMTP acceptance */
576 extern int received_count; /* Count of Received: headers */
577 extern uschar *received_for; /* For "for" field */
578 extern uschar *received_header_text; /* Definition of Received: header */
579 extern int received_headers_max; /* Max count of Received: headers */
580 extern int received_time; /* Time the message was received */
581 extern uschar *recipient_data; /* lookup data for recipients */
582 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
583 extern uschar *recipient_verify_failure; /* What went wrong */
584 extern BOOL recipients_discarded; /* By an ACL */
585 extern int recipients_list_max; /* Maximum number fitting in list */
586 extern int recipients_max; /* Max permitted */
587 extern int recipients_max_reject; /* If TRUE, reject whole message */
588 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
589 extern const pcre *regex_check_dns_names; /* For DNS name checking */
590 extern const pcre *regex_From; /* For recognizing "From_" lines */
591 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
592 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
593 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
594 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
595 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
596 #ifdef WITH_CONTENT_SCAN
597 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
599 extern int remote_delivery_count; /* Number of remote addresses */
600 extern int remote_max_parallel; /* Maximum parallel delivery */
601 extern uschar *remote_sort_domains; /* Remote domain sorting order */
602 extern retry_config *retries; /* Chain of retry config information */
603 extern int retry_data_expire; /* When to expire retry data */
604 extern int retry_interval_max; /* Absolute maximum */
605 extern int retry_maximum_timeout; /* The maximum timeout */
606 extern uschar *return_path; /* Return path for a message */
607 extern BOOL return_path_remove; /* Remove return-path headers */
608 extern int rewrite_existflags; /* Indicate which headers have rewrites */
609 extern uschar *rfc1413_hosts; /* RFC hosts */
610 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
611 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
612 extern uid_t root_uid; /* The uid for root */
613 extern router_info routers_available[];/* Vector of available routers */
614 extern router_instance *routers; /* Chain of instantiated routers */
615 extern router_instance router_defaults;/* Default values */
616 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
617 extern ip_address_item *running_interfaces; /* Host's running interfaces */
618 extern uschar *running_status; /* Flag string for testing */
619 extern int runrc; /* rc from ${run} */
621 extern uschar *search_error_message; /* Details of lookup problem */
622 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
623 extern uschar *self_hostname; /* Self host after routing->directors */
624 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
625 extern uschar *sender_address_data; /* address_data from sender verify */
626 extern BOOL sender_address_forced; /* Set by -f */
627 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
628 extern uschar *sender_data; /* lookup result for senders */
629 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
630 extern uschar *sender_fullhost; /* Sender host name + address */
631 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
632 extern uschar **sender_host_aliases; /* Points to list of alias names */
633 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
634 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
635 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
636 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
637 extern BOOL sender_local; /* TRUE for local senders */
638 extern BOOL sender_name_forced; /* Set by -F */
639 extern uschar *sender_rate; /* Sender rate computed by ACL */
640 extern uschar *sender_rate_limit; /* Configured rate limit */
641 extern uschar *sender_rate_period; /* Configured smoothing period */
642 extern uschar *sender_rcvhost; /* Host data for Received: */
643 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
644 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
645 extern uschar *sender_verify_failure; /* What went wrong */
646 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
647 extern address_item *sender_verified_failed; /* The one that caused denial */
648 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
649 extern int sending_port; /* Port of outgoing interface */
650 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
651 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
652 extern int smtp_accept_count; /* Count of connections */
653 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
654 extern int smtp_accept_max; /* Max SMTP connections */
655 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
656 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
657 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
658 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
659 extern int smtp_accept_queue; /* Queue after so many connections */
660 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
661 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
662 extern uschar *smtp_active_hostname; /* Hostname for this message */
663 extern BOOL smtp_authenticated; /* Sending client has authenticated */
664 extern uschar *smtp_banner; /* Banner string (to be expanded) */
665 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
666 extern int smtp_ch_index; /* Index in smtp_connection_had */
667 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
668 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
669 extern time_t smtp_connection_start; /* Start time of SMTP connection */
670 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
671 extern int smtp_connect_backlog; /* Max backlog permitted */
672 extern double smtp_delay_mail; /* Current MAIL delay */
673 extern double smtp_delay_rcpt; /* Current RCPT delay */
674 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
675 extern uschar *smtp_etrn_command; /* Command to run */
676 extern BOOL smtp_etrn_serialize; /* Only one at once */
677 extern FILE *smtp_in; /* Incoming SMTP input file */
678 extern int smtp_load_reserve; /* Only from reserved if load > this */
679 extern int smtp_mailcmd_count; /* Count of MAIL commands */
680 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
681 extern int smtp_max_unknown_commands; /* As it says */
682 extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
683 extern FILE *smtp_out; /* Incoming SMTP output file */
684 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
685 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
686 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
687 extern uschar *smtp_read_error; /* Message for SMTP input error */
688 extern int smtp_receive_timeout; /* Applies to each received line */
689 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
690 extern BOOL smtp_return_error_details; /* TRUE to return full info */
691 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
692 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
693 extern int smtp_rlm_limit; /* Max delay */
694 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
695 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
696 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
697 extern int smtp_rlr_limit; /* Max delay */
698 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
699 extern BOOL smtp_use_pipelining; /* Global for passed connections */
700 extern BOOL smtp_use_size; /* Global for passed connections */
702 #ifdef WITH_CONTENT_SCAN
703 extern uschar *spamd_address; /* address for the spamassassin daemon */
704 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
705 extern uschar *spam_report; /* the spamd report (multiline) */
706 extern uschar *spam_score; /* the spam score (float) */
707 extern uschar *spam_score_int; /* spam_score * 10 (int) */
709 #ifdef EXPERIMENTAL_SPF
710 extern uschar *spf_guess; /* spf best-guess record */
711 extern uschar *spf_header_comment; /* spf header comment */
712 extern uschar *spf_received; /* Received-SPF: header */
713 extern uschar *spf_result; /* spf result in string form */
714 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
716 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
717 extern uschar *spool_directory; /* Name of spool directory */
718 #ifdef EXPERIMENTAL_SRS
719 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
720 extern uschar *srs_db_address; /* SRS db address */
721 extern uschar *srs_db_key; /* SRS db key */
722 extern int srs_hashlength; /* SRS hash length */
723 extern int srs_hashmin; /* SRS minimum hash length */
724 extern int srs_maxage; /* SRS max age */
725 extern uschar *srs_orig_sender; /* SRS original sender */
726 extern uschar *srs_orig_recipient; /* SRS original recipient */
727 extern uschar *srs_recipient; /* SRS recipient */
728 extern uschar *srs_secrets; /* SRS secrets list */
729 extern uschar *srs_status; /* SRS staus */
730 extern BOOL srs_usehash; /* SRS use hash flag */
731 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
733 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
734 extern int string_datestamp_offset;/* After insertion by string_format */
735 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
736 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
737 extern uschar *submission_domain; /* Domain for submission mode */
738 extern BOOL submission_mode; /* Can be forced from ACL */
739 extern uschar *submission_name; /* User name set from ACL */
740 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
741 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
742 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
743 extern int syslog_facility; /* As defined by Syslog.h */
744 extern uschar *syslog_processname; /* 'ident' param to openlog() */
745 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
746 extern uschar *system_filter; /* Name of system filter file */
748 extern uschar *system_filter_directory_transport; /* Transports for the */
749 extern uschar *system_filter_file_transport; /* system filter */
750 extern uschar *system_filter_pipe_transport;
751 extern uschar *system_filter_reply_transport;
753 extern gid_t system_filter_gid; /* Gid for running system filter */
754 extern BOOL system_filter_gid_set; /* TRUE if gid set */
755 extern uid_t system_filter_uid; /* Uid for running system filter */
756 extern BOOL system_filter_uid_set; /* TRUE if uid set */
757 extern BOOL system_filtering; /* TRUE when running system filter */
759 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
760 extern int test_harness_load_avg; /* For use when testing */
761 extern int thismessage_size_limit; /* Limit for this message */
762 extern int timeout_frozen_after; /* Max time to keep frozen messages */
763 extern BOOL timestamps_utc; /* Use UTC for all times */
764 extern int transport_count; /* Count of bytes transported */
765 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
766 extern int transport_filter_timeout; /* Timeout for same */
767 extern BOOL transport_filter_timed_out; /* True if it did */
769 extern transport_info transports_available[]; /* Vector of available transports */
770 extern transport_instance *transports; /* Chain of instantiated transports */
771 extern transport_instance transport_defaults; /* Default values */
773 extern int transport_write_timeout;/* Set to time out individual writes */
775 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
776 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
777 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
778 extern tree_node *tree_unusable; /* Tree of unusable addresses */
780 extern BOOL trusted_caller; /* Caller is trusted */
781 extern gid_t *trusted_groups; /* List of trusted groups */
782 extern uid_t *trusted_users; /* List of trusted users */
783 extern uschar *timezone_string; /* Required timezone setting */
785 extern uschar *unknown_login; /* To use when login id unknown */
786 extern uschar *unknown_username; /* Ditto */
787 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
788 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
789 extern uschar *uucp_from_sender; /* For building the sender */
791 extern uschar *warn_message_file; /* Template for warning messages */
792 extern uschar *warnmsg_delay; /* String form of delay time */
793 extern uschar *warnmsg_recipients; /* Recipients of warning message */
794 extern BOOL write_rejectlog; /* Control of reject logging */
796 extern uschar *version_copyright; /* Copyright notice */
797 extern uschar *version_date; /* Date of compilation */
798 extern uschar *version_cnumber; /* Compile number */
799 extern uschar *version_string; /* Version string */
801 extern int warning_count; /* Delay warnings sent for this msg */
803 /* End of globals.h */
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