1 /* $Cambridge: exim/src/src/globals.h,v 1.58 2007/08/22 10:10:23 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2007 */
8 /* See the file NOTICE for conditions of use and distribution. */
10 /* Almost all the global variables are defined together in this one header, so
11 that they are easy to find. However, those that are visible during the
12 compilation of the local_scan() function are defined separately in the
13 local_scan.h header file. */
15 /* First put any specials that are required for some operating systems. */
21 /* Now things that are present only when configured. */
24 extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */
25 extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */
26 extern BOOL opt_perl_started; /* Set once interpreter started */
30 extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
34 extern uschar *ibase_servers;
38 extern uschar *eldap_default_servers; /* List of default servers */
39 extern int eldap_version; /* LDAP version */
43 extern uschar *mysql_servers; /* List of servers and connect info */
47 extern uschar *oracle_servers; /* List of servers and connect info */
51 extern uschar *pgsql_servers; /* List of servers and connect info */
55 extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
58 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
59 extern BOOL move_frozen_messages; /* Get them out of the normal directory */
62 /* These variables are outside the #ifdef because it keeps the code less
63 cluttered in several places (e.g. during logging) if we can always refer to
64 them. Also, the tls_ variables are now always visible. */
66 extern int tls_active; /* fd/socket when in a TLS session */
67 extern BOOL tls_certificate_verified; /* Client certificate verified */
68 extern uschar *tls_cipher; /* Cipher used */
69 extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
70 extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
71 extern uschar *tls_peerdn; /* DN from peer */
74 extern uschar *gnutls_require_mac; /* So some can be avoided */
75 extern uschar *gnutls_require_kx; /* So some can be avoided */
76 extern uschar *gnutls_require_proto; /* So some can be avoided */
77 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
78 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
79 extern uschar *tls_certificate; /* Certificate file */
80 extern uschar *tls_crl; /* CRL File */
81 extern uschar *tls_dhparam; /* DH param file */
82 extern BOOL tls_offered; /* Server offered TLS */
83 extern uschar *tls_privatekey; /* Private key file */
84 extern BOOL tls_remember_esmtp; /* For YAEB */
85 extern uschar *tls_require_ciphers; /* So some can be avoided */
86 extern uschar *tls_try_verify_hosts; /* Optional client verification */
87 extern uschar *tls_verify_certificates;/* Path for certificates to check */
88 extern uschar *tls_verify_hosts; /* Mandatory client verification */
92 /* Input-reading functions for messages, so we can use special ones for
95 extern int (*receive_getc)(void);
96 extern int (*receive_ungetc)(int);
97 extern int (*receive_feof)(void);
98 extern int (*receive_ferror)(void);
99 extern BOOL (*receive_smtp_buffered)(void);
102 /* For clearing, saving, restoring address expansion variables. We have to have
103 the size of this vector set explicitly, because it is referenced from more than
106 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
108 /* General global variables */
110 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
111 extern header_line *acl_added_headers; /* Headers added by an ACL */
112 extern tree_node *acl_anchor; /* Tree of named ACLs */
113 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
114 #ifdef WITH_CONTENT_SCAN
115 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
117 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
118 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
119 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
120 extern uschar *acl_smtp_data; /* ACL run after DATA received */
121 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
122 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
123 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
124 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
125 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
126 #ifdef WITH_CONTENT_SCAN
127 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
129 extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
130 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
131 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
132 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
133 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
134 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
135 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
136 extern tree_node *acl_var_c; /* ACL connection variables */
137 extern tree_node *acl_var_m; /* ACL messsage variables */
138 extern uschar *acl_verify_message; /* User message for verify failure */
139 extern string_item *acl_warn_logged; /* Logged lines */
140 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
141 extern uschar *acl_wherenames[]; /* Names for messages */
142 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
143 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
144 extern address_item *addr_duplicate; /* Duplicate address list */
145 extern address_item address_defaults; /* Default data for address item */
146 extern uschar *address_file; /* Name of file when delivering to one */
147 extern uschar *address_pipe; /* Pipe command when delivering to one */
148 extern BOOL address_test_mode; /* True for -bt */
149 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
150 extern int addresslist_count; /* Number defined */
151 extern gid_t *admin_groups; /* List of admin groups */
152 extern BOOL admin_user; /* True if caller can do admin */
153 extern BOOL allow_auth_unadvertised;/* As it says */
154 extern BOOL allow_domain_literals; /* As it says */
155 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
156 extern BOOL allow_unqualified_recipient; /* As it says */
157 extern BOOL allow_unqualified_sender; /* Ditto */
158 extern BOOL allow_utf8_domains; /* For experimenting */
159 extern uschar *authenticated_id; /* ID that was authenticated */
160 extern uschar *authenticated_sender; /* From AUTH on MAIL */
161 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
162 extern uschar *auth_advertise_hosts; /* Only advertise to these */
163 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
164 extern auth_instance *auths; /* Chain of instantiated auths */
165 extern auth_instance auth_defaults; /* Default values */
166 extern uschar *auth_defer_msg; /* Error message for log */
167 extern uschar *auth_defer_user_msg; /* Error message for user */
168 extern uschar *auth_vars[]; /* $authn variables */
169 extern int auto_thaw; /* Auto-thaw interval */
170 #ifdef WITH_CONTENT_SCAN
171 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
174 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
175 extern uschar *base62_chars; /* Table of base-62 characters */
176 extern uschar *bi_command; /* Command for -bi option */
177 extern uschar *big_buffer; /* Used for various temp things */
178 extern int big_buffer_size; /* Current size (can expand) */
179 #ifdef EXPERIMENTAL_BRIGHTMAIL
180 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
181 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
182 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
183 extern uschar *bmi_config_file; /* Brightmail config file */
184 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
185 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
186 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
188 extern uschar *bounce_message_file; /* Template file */
189 extern uschar *bounce_message_text; /* One-liner */
190 extern uschar *bounce_recipient; /* When writing an errmsg */
191 extern BOOL bounce_return_body; /* Include body in returned message */
192 extern BOOL bounce_return_message; /* Include message in bounce */
193 extern int bounce_return_size_limit; /* Max amount to return */
194 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
195 extern int bsmtp_transaction_linecount; /* Start of last transaction */
197 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
198 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
199 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
200 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
201 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
202 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
203 extern int check_log_inodes; /* Minimum for message acceptance */
204 extern int check_log_space; /* Minimum for message acceptance */
205 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
206 extern int check_spool_inodes; /* Minimum for message acceptance */
207 extern int check_spool_space; /* Minimum for message acceptance */
208 extern int clmacro_count; /* Number of command line macros */
209 extern uschar *clmacros[]; /* Copy of them, for re-exec */
210 extern int connection_max_messages;/* Max down one SMTP connection */
211 extern BOOL config_changed; /* True if -C used */
212 extern FILE *config_file; /* Configuration file */
213 extern uschar *config_filename; /* Configuration file name */
214 #ifdef CONFIGURE_GROUP
215 extern gid_t config_gid; /* Additional group owner */
217 extern int config_lineno; /* Line number */
218 extern uschar *config_main_filelist; /* List of possible config files */
219 extern uschar *config_main_filename; /* File name actually used */
220 #ifdef CONFIGURE_OWNER
221 extern uid_t config_uid; /* Additional owner */
223 extern uschar *continue_hostname; /* Host for continued delivery */
224 extern uschar *continue_host_address; /* IP address for ditto */
225 extern BOOL continue_more; /* Flag more addresses waiting */
226 extern int continue_sequence; /* Sequence num for continued delivery */
227 extern uschar *continue_transport; /* Transport for continued delivery */
229 extern uschar *csa_status; /* Client SMTP Authorization result */
231 extern BOOL daemon_listen; /* True if listening required */
232 extern uschar *daemon_smtp_port; /* Can be a list of ports */
233 extern int daemon_startup_retries; /* Number of times to retry */
234 extern int daemon_startup_sleep; /* Sleep between retries */
235 extern BOOL debug_daemon; /* Debug the daemon process only */
236 extern int debug_fd; /* The fd for debug_file */
237 extern FILE *debug_file; /* Where to write debugging info */
238 extern bit_table debug_options[]; /* Table of debug options */
239 extern int debug_options_count; /* Size of table */
240 extern int delay_warning[]; /* Times between warnings */
241 extern uschar *delay_warning_condition; /* Condition string for warnings */
242 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
244 extern uschar *deliver_address_data; /* Arbitrary data for an address */
245 extern int deliver_datafile; /* FD for data part of message */
246 extern uschar *deliver_domain; /* The local domain for delivery */
247 extern uschar *deliver_domain_data; /* From domain lookup */
248 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
249 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
250 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
251 extern BOOL deliver_firsttime; /* True for first delivery attempt */
252 extern BOOL deliver_force; /* TRUE if delivery was forced */
253 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
254 extern int deliver_frozen_at; /* Time of freezing */
255 extern uschar *deliver_home; /* Home directory for pipes */
256 extern uschar *deliver_host; /* (First) host for routed local deliveries */
257 /* Remote host for filter */
258 extern uschar *deliver_host_address; /* Address for remote delivery filter */
259 extern uschar *deliver_in_buffer; /* Buffer for copying file */
260 extern ino_t deliver_inode; /* Inode for appendfile */
261 extern uschar *deliver_localpart; /* The local part for delivery */
262 extern uschar *deliver_localpart_data; /* From local part lookup */
263 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
264 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
265 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
266 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
267 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
268 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
269 extern uschar *deliver_out_buffer; /* Buffer for copying file */
270 extern int deliver_queue_load_max; /* Different value for queue running */
271 extern address_item *deliver_recipients; /* Current set of addresses */
272 extern uschar *deliver_selectstring; /* For selecting by recipient */
273 extern BOOL deliver_selectstring_regex; /* String is regex */
274 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
275 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
276 #ifdef WITH_OLD_DEMIME
277 extern int demime_errorlevel; /* Severity of MIME error */
278 extern int demime_ok; /* Nonzero if message has been demimed */
279 extern uschar *demime_reason; /* Reason for broken MIME container */
281 extern BOOL disable_callout_flush; /* Don't flush before callouts */
282 extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
283 #ifdef ENABLE_DISABLE_FSYNC
284 extern BOOL disable_fsync; /* Not for normal use */
286 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
287 extern BOOL disable_logging; /* Disables log writing when TRUE */
289 #ifdef EXPERIMENTAL_DOMAINKEYS
290 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
291 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
292 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
295 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
296 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
297 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
298 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
299 extern int dns_retrans; /* Retransmission time setting */
300 extern int dns_retry; /* Number of retries */
301 extern uschar *dnslist_domain; /* DNS (black) list domain */
302 extern uschar *dnslist_matched; /* DNS (black) list matched key */
303 extern uschar *dnslist_text; /* DNS (black) list text message */
304 extern uschar *dnslist_value; /* DNS (black) list IP address */
305 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
306 extern int domainlist_count; /* Number defined */
307 extern BOOL dont_deliver; /* TRUE for -N option */
308 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
310 /* This option is now a no-opt, retained for compatibility */
311 extern BOOL drop_cr; /* For broken local MUAs */
313 extern uschar *dsn_from; /* From: string for DSNs */
315 extern BOOL enable_dollar_recipients; /* Make $recipients available */
316 extern int envelope_to_remove; /* Remove envelope_to_headers */
317 extern int errno_quota; /* Quota errno in this OS */
318 extern int error_handling; /* Error handling style */
319 extern uschar *errors_copy; /* For taking copies of errors */
320 extern uschar *errors_reply_to; /* Reply-to for error messages */
321 extern int errors_sender_rc; /* Return after message to sender*/
322 extern gid_t exim_gid; /* To be used with exim_uid */
323 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
324 extern uschar *exim_path; /* Path to exec exim */
325 extern uid_t exim_uid; /* Non-root uid for exim */
326 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
327 extern int expand_forbid; /* RDO flags for forbidding things */
328 extern int expand_nlength[]; /* Lengths of numbered strings */
329 extern int expand_nmax; /* Max numerical value */
330 extern uschar *expand_nstring[]; /* Numbered strings */
331 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
332 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
333 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
335 extern int fake_response; /* Fake FAIL or DEFER response to data */
336 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
337 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
338 extern BOOL filter_running; /* TRUE while running a filter */
339 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
340 extern int filter_test; /* Filter test type */
341 extern uschar *filter_test_sfile; /* System filter test file */
342 extern uschar *filter_test_ufile; /* User filter test file */
343 extern uschar *filter_thisaddress; /* For address looping */
344 extern int finduser_retries; /* Retry count for getpwnam() */
345 extern uid_t fixed_never_users[]; /* Can't be overridden */
346 #ifdef WITH_OLD_DEMIME
347 extern uschar *found_extension; /* demime acl condition: file extension found */
349 extern uschar *freeze_tell; /* Message on (some) freezings */
350 extern uschar *freeze_tell_config; /* The configured setting */
351 extern uschar *fudged_queue_times; /* For use in test harness */
353 extern uschar *gecos_name; /* To be expanded when pattern matches */
354 extern uschar *gecos_pattern; /* Pattern to match */
355 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
357 extern int header_insert_maxlen; /* Max for inserting headers */
358 extern int header_maxsize; /* Max total length for header */
359 extern int header_line_maxsize; /* Max for an individual line */
360 extern header_name header_names[]; /* Table of header names */
361 extern int header_names_size; /* Number of entries */
362 extern BOOL header_rewritten; /* TRUE if header changed by router */
363 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
364 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
365 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
366 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
367 extern BOOL helo_verified; /* True if HELO verified */
368 extern BOOL helo_verify_failed; /* True if attempt failed */
369 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
370 extern uschar *hex_digits; /* Used in several places */
371 extern uschar *hold_domains; /* Hold up deliveries to these */
372 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
373 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
374 extern uschar *host_data; /* Obtained from lookup in ACL */
375 extern uschar *host_lookup; /* For which IP addresses are always looked up */
376 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
377 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
378 extern uschar *host_lookup_order; /* Order of host lookup types */
379 extern uschar *host_lookup_msg; /* Text for why it failed */
380 extern int host_number; /* For sharing spools */
381 extern uschar *host_number_string; /* For expanding */
382 extern uschar *host_reject_connection; /* Reject these hosts */
383 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
384 extern int hostlist_count; /* Number defined */
385 extern uschar *hosts_connection_nolog; /* Limits the logging option */
386 extern uschar *hosts_treat_as_local; /* For routing */
388 extern int ignore_bounce_errors_after; /* Keep them for this time. */
389 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
390 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
391 extern BOOL is_inetd; /* True for inetd calls */
392 extern uschar *iterate_item; /* Item from iterate list */
394 extern int journal_fd; /* Fd for journal file */
396 extern int keep_malformed; /* Time to keep malformed messages */
398 extern uschar *eldap_dn; /* Where LDAP DNs are left */
399 extern int load_average; /* Most recently read load average */
400 extern BOOL local_error_message; /* True if handling one of these */
401 extern BOOL local_from_check; /* For adding Sender: (global value) */
402 extern uschar *local_from_prefix; /* Permitted prefixes */
403 extern uschar *local_from_suffix; /* Permitted suffixes */
404 extern uschar *local_interfaces; /* For forcing specific interfaces */
405 extern uschar *local_scan_data; /* Text returned by local_scan() */
406 extern optionlist local_scan_options[];/* Option list for local_scan() */
407 extern int local_scan_options_count; /* Size of the list */
408 extern int local_scan_timeout; /* Timeout for local_scan() */
409 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
410 extern gid_t local_user_gid; /* As it says; may be set in routers */
411 extern uid_t local_user_uid; /* As it says; may be set in routers */
412 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
413 extern int localpartlist_count; /* Number defined */
414 extern uschar *log_buffer; /* For constructing log entries */
415 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
416 extern uschar *log_file_path; /* If unset, use default */
417 extern bit_table log_options[]; /* Table of options */
418 extern int log_options_count; /* Size of table */
419 extern int log_reject_target; /* Target log for ACL rejections */
420 extern uschar *log_selector_string; /* As supplied in the config */
421 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
422 extern BOOL log_testing_mode; /* TRUE in various testing modes */
423 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
424 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
425 extern uschar *login_sender_address; /* The actual sender address */
426 extern lookup_info lookup_list[]; /* Vector of available lookups */
427 extern int lookup_list_count; /* Number of entries in the list */
428 extern int lookup_open_max; /* Max lookup files to cache */
429 extern uschar *lookup_value; /* Value looked up from file */
431 extern macro_item *macros; /* Configuration macros */
432 extern uschar *mailstore_basename; /* For mailstore deliveries */
433 #ifdef WITH_CONTENT_SCAN
434 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
436 extern int max_received_linelength;/* What it says */
437 extern int max_username_length; /* For systems with broken getpwnam() */
438 extern int message_age; /* In seconds */
439 extern uschar *message_body; /* Start of message body for filter */
440 extern uschar *message_body_end; /* End of message body for filter */
441 extern int message_body_size; /* Sic */
442 extern int message_body_visible; /* Amount visible in message_body */
443 extern int message_ended; /* State of message reading and how ended */
444 extern uschar *message_headers; /* When built */
445 extern uschar message_id_option[]; /* -E<message-id> for use as option */
446 extern uschar *message_id_external; /* External form of following */
447 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
448 extern uschar *message_id_text; /* Expanded to form message_id */
449 extern struct timeval message_id_tv; /* Time used to create last message_id */
450 extern int message_linecount; /* As it says */
451 extern BOOL message_logs; /* TRUE to write message logs */
452 extern int message_size; /* Size of message */
453 extern uschar *message_size_limit; /* As it says */
454 extern uschar message_subdir[]; /* Subdirectory for messages */
455 extern uschar *message_reference; /* Reference for error messages */
457 /* MIME ACL expandables */
458 #ifdef WITH_CONTENT_SCAN
459 extern int mime_anomaly_level;
460 extern uschar *mime_anomaly_text;
461 extern uschar *mime_boundary;
462 extern uschar *mime_charset;
463 extern uschar *mime_content_description;
464 extern uschar *mime_content_disposition;
465 extern uschar *mime_content_id;
466 extern unsigned int mime_content_size;
467 extern uschar *mime_content_transfer_encoding;
468 extern uschar *mime_content_type;
469 extern uschar *mime_decoded_filename;
470 extern uschar *mime_filename;
471 extern int mime_is_multipart;
472 extern int mime_is_coverletter;
473 extern int mime_is_rfc822;
474 extern int mime_part_count;
477 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
479 extern uid_t *never_users; /* List of uids never to be used */
480 #ifdef WITH_CONTENT_SCAN
481 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
483 extern BOOL no_multiline_responses; /* For broken clients */
485 extern optionlist optionlist_auths[]; /* These option lists are made */
486 extern int optionlist_auths_size; /* global so that readconf can */
487 extern optionlist optionlist_routers[]; /* see them for printing out */
488 extern int optionlist_routers_size; /* the options. */
489 extern optionlist optionlist_transports[];
490 extern int optionlist_transports_size;
492 extern uid_t original_euid; /* Original effective uid */
493 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
494 extern uschar *originator_login; /* Login of same */
495 extern uschar *originator_name; /* Full name of same */
496 extern uid_t originator_uid; /* Uid of ditto */
497 extern uschar *override_local_interfaces; /* Value of -oX argument */
498 extern uschar *override_pid_file_path; /* Value of -oP argument */
500 extern BOOL parse_allow_group; /* Allow group syntax */
501 extern BOOL parse_found_group; /* In the middle of a group */
502 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
503 extern uschar *pid_file_path; /* For writing daemon pids */
504 extern uschar *pipelining_advertise_hosts; /* As it says */
505 extern BOOL pipelining_enable; /* As it says */
506 extern BOOL preserve_message_logs; /* Save msglog files */
507 extern uschar *primary_hostname; /* Primary name of this computer */
508 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
509 extern uschar process_info[]; /* For SIGUSR1 output */
510 extern uschar *process_log_path; /* Alternate path */
511 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
512 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
513 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
514 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
516 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
517 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
518 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
519 extern uschar *queue_domains; /* Queue these domains */
520 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
521 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
522 extern BOOL queue_run_force; /* TRUE to force during queue run */
523 extern BOOL queue_run_local; /* Local deliveries only in queue run */
524 extern BOOL queue_running; /* TRUE for queue running process and */
525 /* immediate children */
526 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
527 extern int queue_run_pipe; /* Pipe for synchronizing */
528 extern int queue_interval; /* Queue running interval */
529 extern BOOL queue_only; /* TRUE to disable immediate delivery */
530 extern int queue_only_load; /* Max load before auto-queue */
531 extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
532 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
533 extern BOOL queue_only_override; /* Allow override from command line */
534 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
535 extern BOOL queue_run_in_order; /* As opposed to random */
536 extern int queue_run_max; /* Max queue runners */
537 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
538 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
540 extern unsigned int random_seed; /* Seed for random numbers */
541 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
542 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
543 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
544 extern uschar *raw_active_hostname; /* Pre-expansion */
545 extern uschar *raw_sender; /* Before rewriting */
546 extern uschar **raw_recipients; /* Before rewriting */
547 extern int raw_recipients_count;
548 extern int rcpt_count; /* Count of RCPT commands in a message */
549 extern int rcpt_fail_count; /* Those that got 5xx */
550 extern int rcpt_defer_count; /* Those that got 4xx */
551 extern gid_t real_gid; /* Real gid */
552 extern uid_t real_uid; /* Real user running program */
553 extern BOOL really_exim; /* FALSE in utilities */
554 extern BOOL receive_call_bombout; /* Flag for crashing log */
555 extern int receive_linecount; /* Mainly for BSMTP errors */
556 extern int receive_messagecount; /* Mainly for BSMTP errors */
557 extern int receive_timeout; /* For non-SMTP acceptance */
558 extern int received_count; /* Count of Received: headers */
559 extern uschar *received_for; /* For "for" field */
560 extern uschar *received_header_text; /* Definition of Received: header */
561 extern int received_headers_max; /* Max count of Received: headers */
562 extern int received_time; /* Time the message was received */
563 extern uschar *recipient_data; /* lookup data for recipients */
564 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
565 extern uschar *recipient_verify_failure; /* What went wrong */
566 extern BOOL recipients_discarded; /* By an ACL */
567 extern int recipients_list_max; /* Maximum number fitting in list */
568 extern int recipients_max; /* Max permitted */
569 extern int recipients_max_reject; /* If TRUE, reject whole message */
570 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
571 extern const pcre *regex_check_dns_names; /* For DNS name checking */
572 extern const pcre *regex_From; /* For recognizing "From_" lines */
573 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
574 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
575 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
576 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
577 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
578 #ifdef WITH_CONTENT_SCAN
579 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
581 extern int remote_delivery_count; /* Number of remote addresses */
582 extern int remote_max_parallel; /* Maximum parallel delivery */
583 extern uschar *remote_sort_domains; /* Remote domain sorting order */
584 extern retry_config *retries; /* Chain of retry config information */
585 extern int retry_data_expire; /* When to expire retry data */
586 extern int retry_interval_max; /* Absolute maximum */
587 extern int retry_maximum_timeout; /* The maximum timeout */
588 extern uschar *return_path; /* Return path for a message */
589 extern BOOL return_path_remove; /* Remove return-path headers */
590 extern int rewrite_existflags; /* Indicate which headers have rewrites */
591 extern uschar *rfc1413_hosts; /* RFC hosts */
592 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
593 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
594 extern uid_t root_uid; /* The uid for root */
595 extern router_info routers_available[];/* Vector of available routers */
596 extern router_instance *routers; /* Chain of instantiated routers */
597 extern router_instance router_defaults;/* Default values */
598 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
599 extern ip_address_item *running_interfaces; /* Host's running interfaces */
600 extern uschar *running_status; /* Flag string for testing */
601 extern int runrc; /* rc from ${run} */
603 extern uschar *search_error_message; /* Details of lookup problem */
604 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
605 extern uschar *self_hostname; /* Self host after routing->directors */
606 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
607 extern uschar *sender_address_data; /* address_data from sender verify */
608 extern BOOL sender_address_forced; /* Set by -f */
609 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
610 extern uschar *sender_data; /* lookup result for senders */
611 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
612 extern uschar *sender_fullhost; /* Sender host name + address */
613 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
614 extern uschar **sender_host_aliases; /* Points to list of alias names */
615 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
616 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
617 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
618 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
619 extern BOOL sender_local; /* TRUE for local senders */
620 extern BOOL sender_name_forced; /* Set by -F */
621 extern uschar *sender_rate; /* Sender rate computed by ACL */
622 extern uschar *sender_rate_limit; /* Configured rate limit */
623 extern uschar *sender_rate_period; /* Configured smoothing period */
624 extern uschar *sender_rcvhost; /* Host data for Received: */
625 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
626 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
627 extern uschar *sender_verify_failure; /* What went wrong */
628 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
629 extern address_item *sender_verified_failed; /* The one that caused denial */
630 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
631 extern int sending_port; /* Port of outgoing interface */
632 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
633 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
634 extern int smtp_accept_count; /* Count of connections */
635 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
636 extern int smtp_accept_max; /* Max SMTP connections */
637 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
638 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
639 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
640 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
641 extern int smtp_accept_queue; /* Queue after so many connections */
642 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
643 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
644 extern uschar *smtp_active_hostname; /* Hostname for this message */
645 extern BOOL smtp_authenticated; /* Sending client has authenticated */
646 extern uschar *smtp_banner; /* Banner string (to be expanded) */
647 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
648 extern int smtp_ch_index; /* Index in smtp_connection_had */
649 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
650 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
651 extern time_t smtp_connection_start; /* Start time of SMTP connection */
652 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
653 extern int smtp_connect_backlog; /* Max backlog permitted */
654 extern double smtp_delay_mail; /* Current MAIL delay */
655 extern double smtp_delay_rcpt; /* Current RCPT delay */
656 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
657 extern uschar *smtp_etrn_command; /* Command to run */
658 extern BOOL smtp_etrn_serialize; /* Only one at once */
659 extern FILE *smtp_in; /* Incoming SMTP input file */
660 extern int smtp_load_reserve; /* Only from reserved if load > this */
661 extern int smtp_mailcmd_count; /* Count of MAIL commands */
662 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
663 extern int smtp_max_unknown_commands; /* As it says */
664 extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
665 extern FILE *smtp_out; /* Incoming SMTP output file */
666 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
667 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
668 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
669 extern uschar *smtp_read_error; /* Message for SMTP input error */
670 extern int smtp_receive_timeout; /* Applies to each received line */
671 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
672 extern BOOL smtp_return_error_details; /* TRUE to return full info */
673 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
674 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
675 extern int smtp_rlm_limit; /* Max delay */
676 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
677 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
678 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
679 extern int smtp_rlr_limit; /* Max delay */
680 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
681 extern BOOL smtp_use_pipelining; /* Global for passed connections */
682 extern BOOL smtp_use_size; /* Global for passed connections */
684 #ifdef WITH_CONTENT_SCAN
685 extern uschar *spamd_address; /* address for the spamassassin daemon */
686 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
687 extern uschar *spam_report; /* the spamd report (multiline) */
688 extern uschar *spam_score; /* the spam score (float) */
689 extern uschar *spam_score_int; /* spam_score * 10 (int) */
691 #ifdef EXPERIMENTAL_SPF
692 extern uschar *spf_header_comment; /* spf header comment */
693 extern uschar *spf_received; /* Received-SPF: header */
694 extern uschar *spf_result; /* spf result in string form */
695 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
697 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
698 extern uschar *spool_directory; /* Name of spool directory */
699 #ifdef EXPERIMENTAL_SRS
700 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
701 extern uschar *srs_db_address; /* SRS db address */
702 extern uschar *srs_db_key; /* SRS db key */
703 extern int srs_hashlength; /* SRS hash length */
704 extern int srs_hashmin; /* SRS minimum hash length */
705 extern int srs_maxage; /* SRS max age */
706 extern uschar *srs_orig_sender; /* SRS original sender */
707 extern uschar *srs_orig_recipient; /* SRS original recipient */
708 extern uschar *srs_recipient; /* SRS recipient */
709 extern uschar *srs_secrets; /* SRS secrets list */
710 extern uschar *srs_status; /* SRS staus */
711 extern BOOL srs_usehash; /* SRS use hash flag */
712 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
714 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
715 extern int string_datestamp_offset;/* After insertion by string_format */
716 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
717 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
718 extern uschar *submission_domain; /* Domain for submission mode */
719 extern BOOL submission_mode; /* Can be forced from ACL */
720 extern uschar *submission_name; /* User name set from ACL */
721 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
722 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
723 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
724 extern int syslog_facility; /* As defined by Syslog.h */
725 extern uschar *syslog_processname; /* 'ident' param to openlog() */
726 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
727 extern uschar *system_filter; /* Name of system filter file */
729 extern uschar *system_filter_directory_transport; /* Transports for the */
730 extern uschar *system_filter_file_transport; /* system filter */
731 extern uschar *system_filter_pipe_transport;
732 extern uschar *system_filter_reply_transport;
734 extern gid_t system_filter_gid; /* Gid for running system filter */
735 extern BOOL system_filter_gid_set; /* TRUE if gid set */
736 extern uid_t system_filter_uid; /* Uid for running system filter */
737 extern BOOL system_filter_uid_set; /* TRUE if uid set */
738 extern BOOL system_filtering; /* TRUE when running system filter */
740 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
741 extern int test_harness_load_avg; /* For use when testing */
742 extern int thismessage_size_limit; /* Limit for this message */
743 extern int timeout_frozen_after; /* Max time to keep frozen messages */
744 extern BOOL timestamps_utc; /* Use UTC for all times */
745 extern int transport_count; /* Count of bytes transported */
746 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
747 extern int transport_filter_timeout; /* Timeout for same */
748 extern BOOL transport_filter_timed_out; /* True if it did */
750 extern transport_info transports_available[]; /* Vector of available transports */
751 extern transport_instance *transports; /* Chain of instantiated transports */
752 extern transport_instance transport_defaults; /* Default values */
754 extern int transport_write_timeout;/* Set to time out individual writes */
756 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
757 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
758 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
759 extern tree_node *tree_unusable; /* Tree of unusable addresses */
761 extern BOOL trusted_caller; /* Caller is trusted */
762 extern gid_t *trusted_groups; /* List of trusted groups */
763 extern uid_t *trusted_users; /* List of trusted users */
764 extern uschar *timezone_string; /* Required timezone setting */
766 extern uschar *unknown_login; /* To use when login id unknown */
767 extern uschar *unknown_username; /* Ditto */
768 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
769 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
770 extern uschar *uucp_from_sender; /* For building the sender */
772 extern uschar *warn_message_file; /* Template for warning messages */
773 extern uschar *warnmsg_delay; /* String form of delay time */
774 extern uschar *warnmsg_recipients; /* Recipients of warning message */
775 extern BOOL write_rejectlog; /* Control of reject logging */
777 extern uschar *version_copyright; /* Copyright notice */
778 extern uschar *version_date; /* Date of compilation */
779 extern uschar *version_cnumber; /* Compile number */
780 extern uschar *version_string; /* Version string */
782 extern int warning_count; /* Delay warnings sent for this msg */
784 /* End of globals.h */
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