1 /* $Cambridge: exim/src/src/globals.h,v 1.69 2010/06/12 15:21:26 jetmore Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2009 */
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 uschar *openssl_options; /* OpenSSL compatibility options */
79 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
80 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
81 extern uschar *tls_certificate; /* Certificate file */
82 extern uschar *tls_crl; /* CRL File */
83 extern uschar *tls_dhparam; /* DH param file */
84 extern BOOL tls_offered; /* Server offered TLS */
85 extern uschar *tls_privatekey; /* Private key file */
86 extern BOOL tls_remember_esmtp; /* For YAEB */
87 extern uschar *tls_require_ciphers; /* So some can be avoided */
88 extern uschar *tls_try_verify_hosts; /* Optional client verification */
89 extern uschar *tls_verify_certificates;/* Path for certificates to check */
90 extern uschar *tls_verify_hosts; /* Mandatory client verification */
94 /* Input-reading functions for messages, so we can use special ones for
97 extern int (*receive_getc)(void);
98 extern int (*receive_ungetc)(int);
99 extern int (*receive_feof)(void);
100 extern int (*receive_ferror)(void);
101 extern BOOL (*receive_smtp_buffered)(void);
104 /* For clearing, saving, restoring address expansion variables. We have to have
105 the size of this vector set explicitly, because it is referenced from more than
108 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
110 /* General global variables */
112 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
113 extern header_line *acl_added_headers; /* Headers added by an ACL */
114 extern tree_node *acl_anchor; /* Tree of named ACLs */
115 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
116 #ifdef WITH_CONTENT_SCAN
117 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
119 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
120 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
121 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
122 extern uschar *acl_smtp_data; /* ACL run after DATA received */
124 extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */
126 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
127 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
128 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
129 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
130 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
131 #ifdef WITH_CONTENT_SCAN
132 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
134 extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
135 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
136 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
137 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
138 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
139 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
140 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
141 extern tree_node *acl_var_c; /* ACL connection variables */
142 extern tree_node *acl_var_m; /* ACL messsage variables */
143 extern uschar *acl_verify_message; /* User message for verify failure */
144 extern string_item *acl_warn_logged; /* Logged lines */
145 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
146 extern uschar *acl_wherenames[]; /* Names for messages */
147 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
148 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
149 extern address_item *addr_duplicate; /* Duplicate address list */
150 extern address_item address_defaults; /* Default data for address item */
151 extern uschar *address_file; /* Name of file when delivering to one */
152 extern uschar *address_pipe; /* Pipe command when delivering to one */
153 extern BOOL address_test_mode; /* True for -bt */
154 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
155 extern int addresslist_count; /* Number defined */
156 extern gid_t *admin_groups; /* List of admin groups */
157 extern BOOL admin_user; /* True if caller can do admin */
158 extern BOOL allow_auth_unadvertised;/* As it says */
159 extern BOOL allow_domain_literals; /* As it says */
160 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
161 extern BOOL allow_unqualified_recipient; /* As it says */
162 extern BOOL allow_unqualified_sender; /* Ditto */
163 extern BOOL allow_utf8_domains; /* For experimenting */
164 extern uschar *authenticated_id; /* ID that was authenticated */
165 extern uschar *authenticated_sender; /* From AUTH on MAIL */
166 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
167 extern uschar *auth_advertise_hosts; /* Only advertise to these */
168 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
169 extern auth_instance *auths; /* Chain of instantiated auths */
170 extern auth_instance auth_defaults; /* Default values */
171 extern uschar *auth_defer_msg; /* Error message for log */
172 extern uschar *auth_defer_user_msg; /* Error message for user */
173 extern uschar *auth_vars[]; /* $authn variables */
174 extern int auto_thaw; /* Auto-thaw interval */
175 #ifdef WITH_CONTENT_SCAN
176 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
179 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
180 extern uschar *base62_chars; /* Table of base-62 characters */
181 extern uschar *bi_command; /* Command for -bi option */
182 extern uschar *big_buffer; /* Used for various temp things */
183 extern int big_buffer_size; /* Current size (can expand) */
184 #ifdef EXPERIMENTAL_BRIGHTMAIL
185 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
186 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
187 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
188 extern uschar *bmi_config_file; /* Brightmail config file */
189 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
190 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
191 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
193 extern uschar *bounce_message_file; /* Template file */
194 extern uschar *bounce_message_text; /* One-liner */
195 extern uschar *bounce_recipient; /* When writing an errmsg */
196 extern BOOL bounce_return_body; /* Include body in returned message */
197 extern BOOL bounce_return_message; /* Include message in bounce */
198 extern int bounce_return_size_limit; /* Max amount to return */
199 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
200 extern int bsmtp_transaction_linecount; /* Start of last transaction */
202 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
203 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
204 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
205 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
206 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
207 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
208 extern int check_log_inodes; /* Minimum for message acceptance */
209 extern int check_log_space; /* Minimum for message acceptance */
210 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
211 extern int check_spool_inodes; /* Minimum for message acceptance */
212 extern int check_spool_space; /* Minimum for message acceptance */
213 extern int clmacro_count; /* Number of command line macros */
214 extern uschar *clmacros[]; /* Copy of them, for re-exec */
215 extern int connection_max_messages;/* Max down one SMTP connection */
216 extern BOOL config_changed; /* True if -C used */
217 extern FILE *config_file; /* Configuration file */
218 extern uschar *config_filename; /* Configuration file name */
219 #ifdef CONFIGURE_GROUP
220 extern gid_t config_gid; /* Additional group owner */
222 extern int config_lineno; /* Line number */
223 extern uschar *config_main_filelist; /* List of possible config files */
224 extern uschar *config_main_filename; /* File name actually used */
225 #ifdef CONFIGURE_OWNER
226 extern uid_t config_uid; /* Additional owner */
228 extern uschar *continue_hostname; /* Host for continued delivery */
229 extern uschar *continue_host_address; /* IP address for ditto */
230 extern BOOL continue_more; /* Flag more addresses waiting */
231 extern int continue_sequence; /* Sequence num for continued delivery */
232 extern uschar *continue_transport; /* Transport for continued delivery */
234 extern uschar *csa_status; /* Client SMTP Authorization result */
236 extern BOOL daemon_listen; /* True if listening required */
237 extern uschar *daemon_smtp_port; /* Can be a list of ports */
238 extern int daemon_startup_retries; /* Number of times to retry */
239 extern int daemon_startup_sleep; /* Sleep between retries */
241 #ifdef EXPERIMENTAL_DCC
242 extern BOOL dcc_direct_add_header; /* directly add header */
243 extern uschar *dcc_header; /* dcc header */
244 extern uschar *dcc_result; /* dcc result */
245 extern uschar *dccifd_address; /* address of the dccifd daemon */
246 extern uschar *dccifd_options; /* options for the dccifd daemon */
249 extern BOOL debug_daemon; /* Debug the daemon process only */
250 extern int debug_fd; /* The fd for debug_file */
251 extern FILE *debug_file; /* Where to write debugging info */
252 extern bit_table debug_options[]; /* Table of debug options */
253 extern int debug_options_count; /* Size of table */
254 extern int delay_warning[]; /* Times between warnings */
255 extern uschar *delay_warning_condition; /* Condition string for warnings */
256 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
258 extern uschar *deliver_address_data; /* Arbitrary data for an address */
259 extern int deliver_datafile; /* FD for data part of message */
260 extern uschar *deliver_domain; /* The local domain for delivery */
261 extern uschar *deliver_domain_data; /* From domain lookup */
262 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
263 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
264 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
265 extern BOOL deliver_firsttime; /* True for first delivery attempt */
266 extern BOOL deliver_force; /* TRUE if delivery was forced */
267 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
268 extern int deliver_frozen_at; /* Time of freezing */
269 extern uschar *deliver_home; /* Home directory for pipes */
270 extern uschar *deliver_host; /* (First) host for routed local deliveries */
271 /* Remote host for filter */
272 extern uschar *deliver_host_address; /* Address for remote delivery filter */
273 extern uschar *deliver_in_buffer; /* Buffer for copying file */
274 extern ino_t deliver_inode; /* Inode for appendfile */
275 extern uschar *deliver_localpart; /* The local part for delivery */
276 extern uschar *deliver_localpart_data; /* From local part lookup */
277 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
278 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
279 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
280 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
281 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
282 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
283 extern uschar *deliver_out_buffer; /* Buffer for copying file */
284 extern int deliver_queue_load_max; /* Different value for queue running */
285 extern address_item *deliver_recipients; /* Current set of addresses */
286 extern uschar *deliver_selectstring; /* For selecting by recipient */
287 extern BOOL deliver_selectstring_regex; /* String is regex */
288 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
289 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
290 #ifdef WITH_OLD_DEMIME
291 extern int demime_errorlevel; /* Severity of MIME error */
292 extern int demime_ok; /* Nonzero if message has been demimed */
293 extern uschar *demime_reason; /* Reason for broken MIME container */
295 extern BOOL disable_callout_flush; /* Don't flush before callouts */
296 extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
297 #ifdef ENABLE_DISABLE_FSYNC
298 extern BOOL disable_fsync; /* Not for normal use */
300 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
301 extern BOOL disable_logging; /* Disables log writing when TRUE */
304 extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
305 extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
306 extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
307 extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
308 extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
309 extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
310 extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
313 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
314 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
315 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
316 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
317 extern int dns_retrans; /* Retransmission time setting */
318 extern int dns_retry; /* Number of retries */
319 extern uschar *dnslist_domain; /* DNS (black) list domain */
320 extern uschar *dnslist_matched; /* DNS (black) list matched key */
321 extern uschar *dnslist_text; /* DNS (black) list text message */
322 extern uschar *dnslist_value; /* DNS (black) list IP address */
323 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
324 extern int domainlist_count; /* Number defined */
325 extern BOOL dont_deliver; /* TRUE for -N option */
326 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
328 /* This option is now a no-opt, retained for compatibility */
329 extern BOOL drop_cr; /* For broken local MUAs */
331 extern uschar *dsn_from; /* From: string for DSNs */
333 extern BOOL enable_dollar_recipients; /* Make $recipients available */
334 extern int envelope_to_remove; /* Remove envelope_to_headers */
335 extern int errno_quota; /* Quota errno in this OS */
336 extern int error_handling; /* Error handling style */
337 extern uschar *errors_copy; /* For taking copies of errors */
338 extern uschar *errors_reply_to; /* Reply-to for error messages */
339 extern int errors_sender_rc; /* Return after message to sender*/
340 extern gid_t exim_gid; /* To be used with exim_uid */
341 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
342 extern uschar *exim_path; /* Path to exec exim */
343 extern uid_t exim_uid; /* Non-root uid for exim */
344 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
345 extern int expand_forbid; /* RDO flags for forbidding things */
346 extern int expand_nlength[]; /* Lengths of numbered strings */
347 extern int expand_nmax; /* Max numerical value */
348 extern uschar *expand_nstring[]; /* Numbered strings */
349 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
350 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
351 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
353 extern int fake_response; /* Fake FAIL or DEFER response to data */
354 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
355 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
356 extern BOOL filter_running; /* TRUE while running a filter */
357 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
358 extern int filter_test; /* Filter test type */
359 extern uschar *filter_test_sfile; /* System filter test file */
360 extern uschar *filter_test_ufile; /* User filter test file */
361 extern uschar *filter_thisaddress; /* For address looping */
362 extern int finduser_retries; /* Retry count for getpwnam() */
363 extern uid_t fixed_never_users[]; /* Can't be overridden */
364 #ifdef WITH_OLD_DEMIME
365 extern uschar *found_extension; /* demime acl condition: file extension found */
367 extern uschar *freeze_tell; /* Message on (some) freezings */
368 extern uschar *freeze_tell_config; /* The configured setting */
369 extern uschar *fudged_queue_times; /* For use in test harness */
371 extern uschar *gecos_name; /* To be expanded when pattern matches */
372 extern uschar *gecos_pattern; /* Pattern to match */
373 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
375 extern int header_insert_maxlen; /* Max for inserting headers */
376 extern int header_maxsize; /* Max total length for header */
377 extern int header_line_maxsize; /* Max for an individual line */
378 extern header_name header_names[]; /* Table of header names */
379 extern int header_names_size; /* Number of entries */
380 extern BOOL header_rewritten; /* TRUE if header changed by router */
381 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
382 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
383 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
384 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
385 extern BOOL helo_verified; /* True if HELO verified */
386 extern BOOL helo_verify_failed; /* True if attempt failed */
387 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
388 extern uschar *hex_digits; /* Used in several places */
389 extern uschar *hold_domains; /* Hold up deliveries to these */
390 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
391 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
392 extern uschar *host_data; /* Obtained from lookup in ACL */
393 extern uschar *host_lookup; /* For which IP addresses are always looked up */
394 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
395 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
396 extern uschar *host_lookup_order; /* Order of host lookup types */
397 extern uschar *host_lookup_msg; /* Text for why it failed */
398 extern int host_number; /* For sharing spools */
399 extern uschar *host_number_string; /* For expanding */
400 extern uschar *host_reject_connection; /* Reject these hosts */
401 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
402 extern int hostlist_count; /* Number defined */
403 extern uschar *hosts_connection_nolog; /* Limits the logging option */
404 extern uschar *hosts_treat_as_local; /* For routing */
406 extern int ignore_bounce_errors_after; /* Keep them for this time. */
407 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
408 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
409 extern BOOL is_inetd; /* True for inetd calls */
410 extern uschar *iterate_item; /* Item from iterate list */
412 extern int journal_fd; /* Fd for journal file */
414 extern int keep_malformed; /* Time to keep malformed messages */
416 extern uschar *eldap_dn; /* Where LDAP DNs are left */
417 extern int load_average; /* Most recently read load average */
418 extern BOOL local_error_message; /* True if handling one of these */
419 extern BOOL local_from_check; /* For adding Sender: (global value) */
420 extern uschar *local_from_prefix; /* Permitted prefixes */
421 extern uschar *local_from_suffix; /* Permitted suffixes */
422 extern uschar *local_interfaces; /* For forcing specific interfaces */
423 extern uschar *local_scan_data; /* Text returned by local_scan() */
424 extern optionlist local_scan_options[];/* Option list for local_scan() */
425 extern int local_scan_options_count; /* Size of the list */
426 extern int local_scan_timeout; /* Timeout for local_scan() */
427 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
428 extern gid_t local_user_gid; /* As it says; may be set in routers */
429 extern uid_t local_user_uid; /* As it says; may be set in routers */
430 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
431 extern int localpartlist_count; /* Number defined */
432 extern uschar *log_buffer; /* For constructing log entries */
433 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
434 extern uschar *log_file_path; /* If unset, use default */
435 extern bit_table log_options[]; /* Table of options */
436 extern int log_options_count; /* Size of table */
437 extern int log_reject_target; /* Target log for ACL rejections */
438 extern uschar *log_selector_string; /* As supplied in the config */
439 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
440 extern BOOL log_testing_mode; /* TRUE in various testing modes */
441 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
442 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
443 extern uschar *login_sender_address; /* The actual sender address */
444 extern lookup_info lookup_list[]; /* Vector of available lookups */
445 extern int lookup_list_count; /* Number of entries in the list */
446 extern int lookup_open_max; /* Max lookup files to cache */
447 extern uschar *lookup_value; /* Value looked up from file */
449 extern macro_item *macros; /* Configuration macros */
450 extern uschar *mailstore_basename; /* For mailstore deliveries */
451 #ifdef WITH_CONTENT_SCAN
452 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
454 extern int max_received_linelength;/* What it says */
455 extern int max_username_length; /* For systems with broken getpwnam() */
456 extern int message_age; /* In seconds */
457 extern uschar *message_body; /* Start of message body for filter */
458 extern uschar *message_body_end; /* End of message body for filter */
459 extern BOOL message_body_newlines; /* FALSE => remove newlines */
460 extern int message_body_size; /* Sic */
461 extern int message_body_visible; /* Amount visible in message_body */
462 extern int message_ended; /* State of message reading and how ended */
463 extern uschar *message_headers; /* When built */
464 extern uschar message_id_option[]; /* -E<message-id> for use as option */
465 extern uschar *message_id_external; /* External form of following */
466 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
467 extern uschar *message_id_text; /* Expanded to form message_id */
468 extern struct timeval message_id_tv; /* Time used to create last message_id */
469 extern int message_linecount; /* As it says */
470 extern BOOL message_logs; /* TRUE to write message logs */
471 extern int message_size; /* Size of message */
472 extern uschar *message_size_limit; /* As it says */
473 extern uschar message_subdir[]; /* Subdirectory for messages */
474 extern uschar *message_reference; /* Reference for error messages */
476 /* MIME ACL expandables */
477 #ifdef WITH_CONTENT_SCAN
478 extern int mime_anomaly_level;
479 extern uschar *mime_anomaly_text;
480 extern uschar *mime_boundary;
481 extern uschar *mime_charset;
482 extern uschar *mime_content_description;
483 extern uschar *mime_content_disposition;
484 extern uschar *mime_content_id;
485 extern unsigned int mime_content_size;
486 extern uschar *mime_content_transfer_encoding;
487 extern uschar *mime_content_type;
488 extern uschar *mime_decoded_filename;
489 extern uschar *mime_filename;
490 extern int mime_is_multipart;
491 extern int mime_is_coverletter;
492 extern int mime_is_rfc822;
493 extern int mime_part_count;
496 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
498 extern uid_t *never_users; /* List of uids never to be used */
499 #ifdef WITH_CONTENT_SCAN
500 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
502 extern BOOL no_multiline_responses; /* For broken clients */
504 extern optionlist optionlist_auths[]; /* These option lists are made */
505 extern int optionlist_auths_size; /* global so that readconf can */
506 extern optionlist optionlist_routers[]; /* see them for printing out */
507 extern int optionlist_routers_size; /* the options. */
508 extern optionlist optionlist_transports[];
509 extern int optionlist_transports_size;
511 extern uid_t original_euid; /* Original effective uid */
512 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
513 extern uschar *originator_login; /* Login of same */
514 extern uschar *originator_name; /* Full name of same */
515 extern uid_t originator_uid; /* Uid of ditto */
516 extern uschar *override_local_interfaces; /* Value of -oX argument */
517 extern uschar *override_pid_file_path; /* Value of -oP argument */
519 extern BOOL parse_allow_group; /* Allow group syntax */
520 extern BOOL parse_found_group; /* In the middle of a group */
521 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
522 extern uschar *pid_file_path; /* For writing daemon pids */
523 extern uschar *pipelining_advertise_hosts; /* As it says */
524 extern BOOL pipelining_enable; /* As it says */
525 extern BOOL preserve_message_logs; /* Save msglog files */
526 extern uschar *primary_hostname; /* Primary name of this computer */
527 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
528 extern uschar process_info[]; /* For SIGUSR1 output */
529 extern uschar *process_log_path; /* Alternate path */
530 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
531 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
532 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
533 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
535 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
536 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
537 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
538 extern uschar *queue_domains; /* Queue these domains */
539 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
540 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
541 extern BOOL queue_run_force; /* TRUE to force during queue run */
542 extern BOOL queue_run_local; /* Local deliveries only in queue run */
543 extern BOOL queue_running; /* TRUE for queue running process and */
544 /* immediate children */
545 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
546 extern int queue_run_pipe; /* Pipe for synchronizing */
547 extern int queue_interval; /* Queue running interval */
548 extern BOOL queue_only; /* TRUE to disable immediate delivery */
549 extern int queue_only_load; /* Max load before auto-queue */
550 extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
551 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
552 extern BOOL queue_only_override; /* Allow override from command line */
553 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
554 extern BOOL queue_run_in_order; /* As opposed to random */
555 extern int queue_run_max; /* Max queue runners */
556 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
557 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
559 extern unsigned int random_seed; /* Seed for random numbers */
560 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
561 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
562 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
563 extern uschar *raw_active_hostname; /* Pre-expansion */
564 extern uschar *raw_sender; /* Before rewriting */
565 extern uschar **raw_recipients; /* Before rewriting */
566 extern int raw_recipients_count;
567 extern int rcpt_count; /* Count of RCPT commands in a message */
568 extern int rcpt_fail_count; /* Those that got 5xx */
569 extern int rcpt_defer_count; /* Those that got 4xx */
570 extern gid_t real_gid; /* Real gid */
571 extern uid_t real_uid; /* Real user running program */
572 extern BOOL really_exim; /* FALSE in utilities */
573 extern BOOL receive_call_bombout; /* Flag for crashing log */
574 extern int receive_linecount; /* Mainly for BSMTP errors */
575 extern int receive_messagecount; /* Mainly for BSMTP errors */
576 extern int receive_timeout; /* For non-SMTP acceptance */
577 extern int received_count; /* Count of Received: headers */
578 extern uschar *received_for; /* For "for" field */
579 extern uschar *received_header_text; /* Definition of Received: header */
580 extern int received_headers_max; /* Max count of Received: headers */
581 extern int received_time; /* Time the message was received */
582 extern uschar *recipient_data; /* lookup data for recipients */
583 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
584 extern uschar *recipient_verify_failure; /* What went wrong */
585 extern BOOL recipients_discarded; /* By an ACL */
586 extern int recipients_list_max; /* Maximum number fitting in list */
587 extern int recipients_max; /* Max permitted */
588 extern int recipients_max_reject; /* If TRUE, reject whole message */
589 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
590 extern const pcre *regex_check_dns_names; /* For DNS name checking */
591 extern const pcre *regex_From; /* For recognizing "From_" lines */
592 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
593 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
594 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
595 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
596 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
597 #ifdef WHITELIST_D_MACROS
598 extern const pcre *regex_whitelisted_macro; /* For -D macro values */
600 #ifdef WITH_CONTENT_SCAN
601 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
603 extern int remote_delivery_count; /* Number of remote addresses */
604 extern int remote_max_parallel; /* Maximum parallel delivery */
605 extern uschar *remote_sort_domains; /* Remote domain sorting order */
606 extern retry_config *retries; /* Chain of retry config information */
607 extern int retry_data_expire; /* When to expire retry data */
608 extern int retry_interval_max; /* Absolute maximum */
609 extern int retry_maximum_timeout; /* The maximum timeout */
610 extern uschar *return_path; /* Return path for a message */
611 extern BOOL return_path_remove; /* Remove return-path headers */
612 extern int rewrite_existflags; /* Indicate which headers have rewrites */
613 extern uschar *rfc1413_hosts; /* RFC hosts */
614 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
615 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
616 extern uid_t root_gid; /* The gid for root */
617 extern uid_t root_uid; /* The uid for root */
618 extern router_info routers_available[];/* Vector of available routers */
619 extern router_instance *routers; /* Chain of instantiated routers */
620 extern router_instance router_defaults;/* Default values */
621 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
622 extern ip_address_item *running_interfaces; /* Host's running interfaces */
623 extern uschar *running_status; /* Flag string for testing */
624 extern int runrc; /* rc from ${run} */
626 extern uschar *search_error_message; /* Details of lookup problem */
627 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
628 extern uschar *self_hostname; /* Self host after routing->directors */
629 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
630 extern uschar *sender_address_data; /* address_data from sender verify */
631 extern BOOL sender_address_forced; /* Set by -f */
632 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
633 extern uschar *sender_data; /* lookup result for senders */
634 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
635 extern uschar *sender_fullhost; /* Sender host name + address */
636 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
637 extern uschar **sender_host_aliases; /* Points to list of alias names */
638 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
639 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
640 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
641 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
642 extern BOOL sender_local; /* TRUE for local senders */
643 extern BOOL sender_name_forced; /* Set by -F */
644 extern uschar *sender_rate; /* Sender rate computed by ACL */
645 extern uschar *sender_rate_limit; /* Configured rate limit */
646 extern uschar *sender_rate_period; /* Configured smoothing period */
647 extern uschar *sender_rcvhost; /* Host data for Received: */
648 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
649 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
650 extern uschar *sender_verify_failure; /* What went wrong */
651 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
652 extern address_item *sender_verified_failed; /* The one that caused denial */
653 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
654 extern int sending_port; /* Port of outgoing interface */
655 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
656 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
657 extern int smtp_accept_count; /* Count of connections */
658 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
659 extern int smtp_accept_max; /* Max SMTP connections */
660 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
661 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
662 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
663 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
664 extern int smtp_accept_queue; /* Queue after so many connections */
665 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
666 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
667 extern uschar *smtp_active_hostname; /* Hostname for this message */
668 extern BOOL smtp_authenticated; /* Sending client has authenticated */
669 extern uschar *smtp_banner; /* Banner string (to be expanded) */
670 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
671 extern int smtp_ch_index; /* Index in smtp_connection_had */
672 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
673 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
674 extern time_t smtp_connection_start; /* Start time of SMTP connection */
675 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
676 extern int smtp_connect_backlog; /* Max backlog permitted */
677 extern double smtp_delay_mail; /* Current MAIL delay */
678 extern double smtp_delay_rcpt; /* Current RCPT delay */
679 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
680 extern uschar *smtp_etrn_command; /* Command to run */
681 extern BOOL smtp_etrn_serialize; /* Only one at once */
682 extern FILE *smtp_in; /* Incoming SMTP input file */
683 extern int smtp_load_reserve; /* Only from reserved if load > this */
684 extern int smtp_mailcmd_count; /* Count of MAIL commands */
685 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
686 extern int smtp_max_unknown_commands; /* As it says */
687 extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
688 extern FILE *smtp_out; /* Incoming SMTP output file */
689 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
690 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
691 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
692 extern uschar *smtp_read_error; /* Message for SMTP input error */
693 extern int smtp_receive_timeout; /* Applies to each received line */
694 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
695 extern BOOL smtp_return_error_details; /* TRUE to return full info */
696 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
697 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
698 extern int smtp_rlm_limit; /* Max delay */
699 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
700 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
701 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
702 extern int smtp_rlr_limit; /* Max delay */
703 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
704 extern BOOL smtp_use_pipelining; /* Global for passed connections */
705 extern BOOL smtp_use_size; /* Global for passed connections */
707 #ifdef WITH_CONTENT_SCAN
708 extern uschar *spamd_address; /* address for the spamassassin daemon */
709 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
710 extern uschar *spam_report; /* the spamd report (multiline) */
711 extern uschar *spam_score; /* the spam score (float) */
712 extern uschar *spam_score_int; /* spam_score * 10 (int) */
714 #ifdef EXPERIMENTAL_SPF
715 extern uschar *spf_guess; /* spf best-guess record */
716 extern uschar *spf_header_comment; /* spf header comment */
717 extern uschar *spf_received; /* Received-SPF: header */
718 extern uschar *spf_result; /* spf result in string form */
719 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
721 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
722 extern uschar *spool_directory; /* Name of spool directory */
723 #ifdef EXPERIMENTAL_SRS
724 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
725 extern uschar *srs_db_address; /* SRS db address */
726 extern uschar *srs_db_key; /* SRS db key */
727 extern int srs_hashlength; /* SRS hash length */
728 extern int srs_hashmin; /* SRS minimum hash length */
729 extern int srs_maxage; /* SRS max age */
730 extern uschar *srs_orig_sender; /* SRS original sender */
731 extern uschar *srs_orig_recipient; /* SRS original recipient */
732 extern uschar *srs_recipient; /* SRS recipient */
733 extern uschar *srs_secrets; /* SRS secrets list */
734 extern uschar *srs_status; /* SRS staus */
735 extern BOOL srs_usehash; /* SRS use hash flag */
736 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
738 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
739 extern int string_datestamp_offset;/* After insertion by string_format */
740 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
741 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
742 extern uschar *submission_domain; /* Domain for submission mode */
743 extern BOOL submission_mode; /* Can be forced from ACL */
744 extern uschar *submission_name; /* User name set from ACL */
745 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
746 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
747 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
748 extern int syslog_facility; /* As defined by Syslog.h */
749 extern uschar *syslog_processname; /* 'ident' param to openlog() */
750 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
751 extern uschar *system_filter; /* Name of system filter file */
753 extern uschar *system_filter_directory_transport; /* Transports for the */
754 extern uschar *system_filter_file_transport; /* system filter */
755 extern uschar *system_filter_pipe_transport;
756 extern uschar *system_filter_reply_transport;
758 extern gid_t system_filter_gid; /* Gid for running system filter */
759 extern BOOL system_filter_gid_set; /* TRUE if gid set */
760 extern uid_t system_filter_uid; /* Uid for running system filter */
761 extern BOOL system_filter_uid_set; /* TRUE if uid set */
762 extern BOOL system_filtering; /* TRUE when running system filter */
764 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
765 #ifdef USE_TCP_WRAPPERS
766 extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
768 extern int test_harness_load_avg; /* For use when testing */
769 extern int thismessage_size_limit; /* Limit for this message */
770 extern int timeout_frozen_after; /* Max time to keep frozen messages */
771 extern BOOL timestamps_utc; /* Use UTC for all times */
772 extern int transport_count; /* Count of bytes transported */
773 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
774 extern int transport_filter_timeout; /* Timeout for same */
775 extern BOOL transport_filter_timed_out; /* True if it did */
777 extern transport_info transports_available[]; /* Vector of available transports */
778 extern transport_instance *transports; /* Chain of instantiated transports */
779 extern transport_instance transport_defaults; /* Default values */
781 extern int transport_write_timeout;/* Set to time out individual writes */
783 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
784 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
785 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
786 extern tree_node *tree_unusable; /* Tree of unusable addresses */
788 extern BOOL trusted_caller; /* Caller is trusted */
789 extern BOOL trusted_config; /* Configuration file is trusted */
790 extern gid_t *trusted_groups; /* List of trusted groups */
791 extern uid_t *trusted_users; /* List of trusted users */
792 extern uschar *timezone_string; /* Required timezone setting */
794 extern uschar *unknown_login; /* To use when login id unknown */
795 extern uschar *unknown_username; /* Ditto */
796 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
797 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
798 extern uschar *uucp_from_sender; /* For building the sender */
800 extern uschar *warn_message_file; /* Template for warning messages */
801 extern uschar *warnmsg_delay; /* String form of delay time */
802 extern uschar *warnmsg_recipients; /* Recipients of warning message */
803 extern BOOL write_rejectlog; /* Control of reject logging */
805 extern uschar *version_copyright; /* Copyright notice */
806 extern uschar *version_date; /* Date of compilation */
807 extern uschar *version_cnumber; /* Compile number */
808 extern uschar *version_string; /* Version string */
810 extern int warning_count; /* Delay warnings sent for this msg */
812 /* End of globals.h */
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