1 /* $Cambridge: exim/src/src/globals.h,v 1.60 2007/09/28 12:21:57 tom 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 #ifdef EXPERIMENTAL_DKIM
296 extern uschar *dkim_signing_domain; /* Domain used for signing a message. */
297 extern uschar *dkim_signing_selector; /* Selector used for signing a message. */
298 extern int dkim_do_verify; /* DKIM verification switch. Set with ACL control statement. */
301 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
302 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
303 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
304 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
305 extern int dns_retrans; /* Retransmission time setting */
306 extern int dns_retry; /* Number of retries */
307 extern uschar *dnslist_domain; /* DNS (black) list domain */
308 extern uschar *dnslist_matched; /* DNS (black) list matched key */
309 extern uschar *dnslist_text; /* DNS (black) list text message */
310 extern uschar *dnslist_value; /* DNS (black) list IP address */
311 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
312 extern int domainlist_count; /* Number defined */
313 extern BOOL dont_deliver; /* TRUE for -N option */
314 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
316 /* This option is now a no-opt, retained for compatibility */
317 extern BOOL drop_cr; /* For broken local MUAs */
319 extern uschar *dsn_from; /* From: string for DSNs */
321 extern BOOL enable_dollar_recipients; /* Make $recipients available */
322 extern int envelope_to_remove; /* Remove envelope_to_headers */
323 extern int errno_quota; /* Quota errno in this OS */
324 extern int error_handling; /* Error handling style */
325 extern uschar *errors_copy; /* For taking copies of errors */
326 extern uschar *errors_reply_to; /* Reply-to for error messages */
327 extern int errors_sender_rc; /* Return after message to sender*/
328 extern gid_t exim_gid; /* To be used with exim_uid */
329 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
330 extern uschar *exim_path; /* Path to exec exim */
331 extern uid_t exim_uid; /* Non-root uid for exim */
332 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
333 extern int expand_forbid; /* RDO flags for forbidding things */
334 extern int expand_nlength[]; /* Lengths of numbered strings */
335 extern int expand_nmax; /* Max numerical value */
336 extern uschar *expand_nstring[]; /* Numbered strings */
337 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
338 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
339 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
341 extern int fake_response; /* Fake FAIL or DEFER response to data */
342 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
343 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
344 extern BOOL filter_running; /* TRUE while running a filter */
345 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
346 extern int filter_test; /* Filter test type */
347 extern uschar *filter_test_sfile; /* System filter test file */
348 extern uschar *filter_test_ufile; /* User filter test file */
349 extern uschar *filter_thisaddress; /* For address looping */
350 extern int finduser_retries; /* Retry count for getpwnam() */
351 extern uid_t fixed_never_users[]; /* Can't be overridden */
352 #ifdef WITH_OLD_DEMIME
353 extern uschar *found_extension; /* demime acl condition: file extension found */
355 extern uschar *freeze_tell; /* Message on (some) freezings */
356 extern uschar *freeze_tell_config; /* The configured setting */
357 extern uschar *fudged_queue_times; /* For use in test harness */
359 extern uschar *gecos_name; /* To be expanded when pattern matches */
360 extern uschar *gecos_pattern; /* Pattern to match */
361 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
363 extern int header_insert_maxlen; /* Max for inserting headers */
364 extern int header_maxsize; /* Max total length for header */
365 extern int header_line_maxsize; /* Max for an individual line */
366 extern header_name header_names[]; /* Table of header names */
367 extern int header_names_size; /* Number of entries */
368 extern BOOL header_rewritten; /* TRUE if header changed by router */
369 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
370 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
371 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
372 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
373 extern BOOL helo_verified; /* True if HELO verified */
374 extern BOOL helo_verify_failed; /* True if attempt failed */
375 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
376 extern uschar *hex_digits; /* Used in several places */
377 extern uschar *hold_domains; /* Hold up deliveries to these */
378 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
379 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
380 extern uschar *host_data; /* Obtained from lookup in ACL */
381 extern uschar *host_lookup; /* For which IP addresses are always looked up */
382 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
383 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
384 extern uschar *host_lookup_order; /* Order of host lookup types */
385 extern uschar *host_lookup_msg; /* Text for why it failed */
386 extern int host_number; /* For sharing spools */
387 extern uschar *host_number_string; /* For expanding */
388 extern uschar *host_reject_connection; /* Reject these hosts */
389 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
390 extern int hostlist_count; /* Number defined */
391 extern uschar *hosts_connection_nolog; /* Limits the logging option */
392 extern uschar *hosts_treat_as_local; /* For routing */
394 extern int ignore_bounce_errors_after; /* Keep them for this time. */
395 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
396 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
397 extern BOOL is_inetd; /* True for inetd calls */
398 extern uschar *iterate_item; /* Item from iterate list */
400 extern int journal_fd; /* Fd for journal file */
402 extern int keep_malformed; /* Time to keep malformed messages */
404 extern uschar *eldap_dn; /* Where LDAP DNs are left */
405 extern int load_average; /* Most recently read load average */
406 extern BOOL local_error_message; /* True if handling one of these */
407 extern BOOL local_from_check; /* For adding Sender: (global value) */
408 extern uschar *local_from_prefix; /* Permitted prefixes */
409 extern uschar *local_from_suffix; /* Permitted suffixes */
410 extern uschar *local_interfaces; /* For forcing specific interfaces */
411 extern uschar *local_scan_data; /* Text returned by local_scan() */
412 extern optionlist local_scan_options[];/* Option list for local_scan() */
413 extern int local_scan_options_count; /* Size of the list */
414 extern int local_scan_timeout; /* Timeout for local_scan() */
415 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
416 extern gid_t local_user_gid; /* As it says; may be set in routers */
417 extern uid_t local_user_uid; /* As it says; may be set in routers */
418 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
419 extern int localpartlist_count; /* Number defined */
420 extern uschar *log_buffer; /* For constructing log entries */
421 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
422 extern uschar *log_file_path; /* If unset, use default */
423 extern bit_table log_options[]; /* Table of options */
424 extern int log_options_count; /* Size of table */
425 extern int log_reject_target; /* Target log for ACL rejections */
426 extern uschar *log_selector_string; /* As supplied in the config */
427 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
428 extern BOOL log_testing_mode; /* TRUE in various testing modes */
429 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
430 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
431 extern uschar *login_sender_address; /* The actual sender address */
432 extern lookup_info lookup_list[]; /* Vector of available lookups */
433 extern int lookup_list_count; /* Number of entries in the list */
434 extern int lookup_open_max; /* Max lookup files to cache */
435 extern uschar *lookup_value; /* Value looked up from file */
437 extern macro_item *macros; /* Configuration macros */
438 extern uschar *mailstore_basename; /* For mailstore deliveries */
439 #ifdef WITH_CONTENT_SCAN
440 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
442 extern int max_received_linelength;/* What it says */
443 extern int max_username_length; /* For systems with broken getpwnam() */
444 extern int message_age; /* In seconds */
445 extern uschar *message_body; /* Start of message body for filter */
446 extern uschar *message_body_end; /* End of message body for filter */
447 extern BOOL message_body_newlines; /* FALSE => remove newlines */
448 extern int message_body_size; /* Sic */
449 extern int message_body_visible; /* Amount visible in message_body */
450 extern int message_ended; /* State of message reading and how ended */
451 extern uschar *message_headers; /* When built */
452 extern uschar message_id_option[]; /* -E<message-id> for use as option */
453 extern uschar *message_id_external; /* External form of following */
454 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
455 extern uschar *message_id_text; /* Expanded to form message_id */
456 extern struct timeval message_id_tv; /* Time used to create last message_id */
457 extern int message_linecount; /* As it says */
458 extern BOOL message_logs; /* TRUE to write message logs */
459 extern int message_size; /* Size of message */
460 extern uschar *message_size_limit; /* As it says */
461 extern uschar message_subdir[]; /* Subdirectory for messages */
462 extern uschar *message_reference; /* Reference for error messages */
464 /* MIME ACL expandables */
465 #ifdef WITH_CONTENT_SCAN
466 extern int mime_anomaly_level;
467 extern uschar *mime_anomaly_text;
468 extern uschar *mime_boundary;
469 extern uschar *mime_charset;
470 extern uschar *mime_content_description;
471 extern uschar *mime_content_disposition;
472 extern uschar *mime_content_id;
473 extern unsigned int mime_content_size;
474 extern uschar *mime_content_transfer_encoding;
475 extern uschar *mime_content_type;
476 extern uschar *mime_decoded_filename;
477 extern uschar *mime_filename;
478 extern int mime_is_multipart;
479 extern int mime_is_coverletter;
480 extern int mime_is_rfc822;
481 extern int mime_part_count;
484 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
486 extern uid_t *never_users; /* List of uids never to be used */
487 #ifdef WITH_CONTENT_SCAN
488 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
490 extern BOOL no_multiline_responses; /* For broken clients */
492 extern optionlist optionlist_auths[]; /* These option lists are made */
493 extern int optionlist_auths_size; /* global so that readconf can */
494 extern optionlist optionlist_routers[]; /* see them for printing out */
495 extern int optionlist_routers_size; /* the options. */
496 extern optionlist optionlist_transports[];
497 extern int optionlist_transports_size;
499 extern uid_t original_euid; /* Original effective uid */
500 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
501 extern uschar *originator_login; /* Login of same */
502 extern uschar *originator_name; /* Full name of same */
503 extern uid_t originator_uid; /* Uid of ditto */
504 extern uschar *override_local_interfaces; /* Value of -oX argument */
505 extern uschar *override_pid_file_path; /* Value of -oP argument */
507 extern BOOL parse_allow_group; /* Allow group syntax */
508 extern BOOL parse_found_group; /* In the middle of a group */
509 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
510 extern uschar *pid_file_path; /* For writing daemon pids */
511 extern uschar *pipelining_advertise_hosts; /* As it says */
512 extern BOOL pipelining_enable; /* As it says */
513 extern BOOL preserve_message_logs; /* Save msglog files */
514 extern uschar *primary_hostname; /* Primary name of this computer */
515 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
516 extern uschar process_info[]; /* For SIGUSR1 output */
517 extern uschar *process_log_path; /* Alternate path */
518 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
519 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
520 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
521 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
523 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
524 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
525 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
526 extern uschar *queue_domains; /* Queue these domains */
527 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
528 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
529 extern BOOL queue_run_force; /* TRUE to force during queue run */
530 extern BOOL queue_run_local; /* Local deliveries only in queue run */
531 extern BOOL queue_running; /* TRUE for queue running process and */
532 /* immediate children */
533 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
534 extern int queue_run_pipe; /* Pipe for synchronizing */
535 extern int queue_interval; /* Queue running interval */
536 extern BOOL queue_only; /* TRUE to disable immediate delivery */
537 extern int queue_only_load; /* Max load before auto-queue */
538 extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
539 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
540 extern BOOL queue_only_override; /* Allow override from command line */
541 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
542 extern BOOL queue_run_in_order; /* As opposed to random */
543 extern int queue_run_max; /* Max queue runners */
544 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
545 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
547 extern unsigned int random_seed; /* Seed for random numbers */
548 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
549 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
550 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
551 extern uschar *raw_active_hostname; /* Pre-expansion */
552 extern uschar *raw_sender; /* Before rewriting */
553 extern uschar **raw_recipients; /* Before rewriting */
554 extern int raw_recipients_count;
555 extern int rcpt_count; /* Count of RCPT commands in a message */
556 extern int rcpt_fail_count; /* Those that got 5xx */
557 extern int rcpt_defer_count; /* Those that got 4xx */
558 extern gid_t real_gid; /* Real gid */
559 extern uid_t real_uid; /* Real user running program */
560 extern BOOL really_exim; /* FALSE in utilities */
561 extern BOOL receive_call_bombout; /* Flag for crashing log */
562 extern int receive_linecount; /* Mainly for BSMTP errors */
563 extern int receive_messagecount; /* Mainly for BSMTP errors */
564 extern int receive_timeout; /* For non-SMTP acceptance */
565 extern int received_count; /* Count of Received: headers */
566 extern uschar *received_for; /* For "for" field */
567 extern uschar *received_header_text; /* Definition of Received: header */
568 extern int received_headers_max; /* Max count of Received: headers */
569 extern int received_time; /* Time the message was received */
570 extern uschar *recipient_data; /* lookup data for recipients */
571 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
572 extern uschar *recipient_verify_failure; /* What went wrong */
573 extern BOOL recipients_discarded; /* By an ACL */
574 extern int recipients_list_max; /* Maximum number fitting in list */
575 extern int recipients_max; /* Max permitted */
576 extern int recipients_max_reject; /* If TRUE, reject whole message */
577 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
578 extern const pcre *regex_check_dns_names; /* For DNS name checking */
579 extern const pcre *regex_From; /* For recognizing "From_" lines */
580 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
581 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
582 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
583 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
584 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
585 #ifdef WITH_CONTENT_SCAN
586 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
588 extern int remote_delivery_count; /* Number of remote addresses */
589 extern int remote_max_parallel; /* Maximum parallel delivery */
590 extern uschar *remote_sort_domains; /* Remote domain sorting order */
591 extern retry_config *retries; /* Chain of retry config information */
592 extern int retry_data_expire; /* When to expire retry data */
593 extern int retry_interval_max; /* Absolute maximum */
594 extern int retry_maximum_timeout; /* The maximum timeout */
595 extern uschar *return_path; /* Return path for a message */
596 extern BOOL return_path_remove; /* Remove return-path headers */
597 extern int rewrite_existflags; /* Indicate which headers have rewrites */
598 extern uschar *rfc1413_hosts; /* RFC hosts */
599 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
600 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
601 extern uid_t root_uid; /* The uid for root */
602 extern router_info routers_available[];/* Vector of available routers */
603 extern router_instance *routers; /* Chain of instantiated routers */
604 extern router_instance router_defaults;/* Default values */
605 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
606 extern ip_address_item *running_interfaces; /* Host's running interfaces */
607 extern uschar *running_status; /* Flag string for testing */
608 extern int runrc; /* rc from ${run} */
610 extern uschar *search_error_message; /* Details of lookup problem */
611 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
612 extern uschar *self_hostname; /* Self host after routing->directors */
613 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
614 extern uschar *sender_address_data; /* address_data from sender verify */
615 extern BOOL sender_address_forced; /* Set by -f */
616 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
617 extern uschar *sender_data; /* lookup result for senders */
618 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
619 extern uschar *sender_fullhost; /* Sender host name + address */
620 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
621 extern uschar **sender_host_aliases; /* Points to list of alias names */
622 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
623 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
624 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
625 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
626 extern BOOL sender_local; /* TRUE for local senders */
627 extern BOOL sender_name_forced; /* Set by -F */
628 extern uschar *sender_rate; /* Sender rate computed by ACL */
629 extern uschar *sender_rate_limit; /* Configured rate limit */
630 extern uschar *sender_rate_period; /* Configured smoothing period */
631 extern uschar *sender_rcvhost; /* Host data for Received: */
632 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
633 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
634 extern uschar *sender_verify_failure; /* What went wrong */
635 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
636 extern address_item *sender_verified_failed; /* The one that caused denial */
637 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
638 extern int sending_port; /* Port of outgoing interface */
639 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
640 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
641 extern int smtp_accept_count; /* Count of connections */
642 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
643 extern int smtp_accept_max; /* Max SMTP connections */
644 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
645 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
646 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
647 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
648 extern int smtp_accept_queue; /* Queue after so many connections */
649 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
650 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
651 extern uschar *smtp_active_hostname; /* Hostname for this message */
652 extern BOOL smtp_authenticated; /* Sending client has authenticated */
653 extern uschar *smtp_banner; /* Banner string (to be expanded) */
654 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
655 extern int smtp_ch_index; /* Index in smtp_connection_had */
656 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
657 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
658 extern time_t smtp_connection_start; /* Start time of SMTP connection */
659 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
660 extern int smtp_connect_backlog; /* Max backlog permitted */
661 extern double smtp_delay_mail; /* Current MAIL delay */
662 extern double smtp_delay_rcpt; /* Current RCPT delay */
663 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
664 extern uschar *smtp_etrn_command; /* Command to run */
665 extern BOOL smtp_etrn_serialize; /* Only one at once */
666 extern FILE *smtp_in; /* Incoming SMTP input file */
667 extern int smtp_load_reserve; /* Only from reserved if load > this */
668 extern int smtp_mailcmd_count; /* Count of MAIL commands */
669 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
670 extern int smtp_max_unknown_commands; /* As it says */
671 extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
672 extern FILE *smtp_out; /* Incoming SMTP output file */
673 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
674 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
675 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
676 extern uschar *smtp_read_error; /* Message for SMTP input error */
677 extern int smtp_receive_timeout; /* Applies to each received line */
678 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
679 extern BOOL smtp_return_error_details; /* TRUE to return full info */
680 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
681 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
682 extern int smtp_rlm_limit; /* Max delay */
683 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
684 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
685 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
686 extern int smtp_rlr_limit; /* Max delay */
687 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
688 extern BOOL smtp_use_pipelining; /* Global for passed connections */
689 extern BOOL smtp_use_size; /* Global for passed connections */
691 #ifdef WITH_CONTENT_SCAN
692 extern uschar *spamd_address; /* address for the spamassassin daemon */
693 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
694 extern uschar *spam_report; /* the spamd report (multiline) */
695 extern uschar *spam_score; /* the spam score (float) */
696 extern uschar *spam_score_int; /* spam_score * 10 (int) */
698 #ifdef EXPERIMENTAL_SPF
699 extern uschar *spf_header_comment; /* spf header comment */
700 extern uschar *spf_received; /* Received-SPF: header */
701 extern uschar *spf_result; /* spf result in string form */
702 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
704 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
705 extern uschar *spool_directory; /* Name of spool directory */
706 #ifdef EXPERIMENTAL_SRS
707 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
708 extern uschar *srs_db_address; /* SRS db address */
709 extern uschar *srs_db_key; /* SRS db key */
710 extern int srs_hashlength; /* SRS hash length */
711 extern int srs_hashmin; /* SRS minimum hash length */
712 extern int srs_maxage; /* SRS max age */
713 extern uschar *srs_orig_sender; /* SRS original sender */
714 extern uschar *srs_orig_recipient; /* SRS original recipient */
715 extern uschar *srs_recipient; /* SRS recipient */
716 extern uschar *srs_secrets; /* SRS secrets list */
717 extern uschar *srs_status; /* SRS staus */
718 extern BOOL srs_usehash; /* SRS use hash flag */
719 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
721 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
722 extern int string_datestamp_offset;/* After insertion by string_format */
723 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
724 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
725 extern uschar *submission_domain; /* Domain for submission mode */
726 extern BOOL submission_mode; /* Can be forced from ACL */
727 extern uschar *submission_name; /* User name set from ACL */
728 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
729 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
730 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
731 extern int syslog_facility; /* As defined by Syslog.h */
732 extern uschar *syslog_processname; /* 'ident' param to openlog() */
733 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
734 extern uschar *system_filter; /* Name of system filter file */
736 extern uschar *system_filter_directory_transport; /* Transports for the */
737 extern uschar *system_filter_file_transport; /* system filter */
738 extern uschar *system_filter_pipe_transport;
739 extern uschar *system_filter_reply_transport;
741 extern gid_t system_filter_gid; /* Gid for running system filter */
742 extern BOOL system_filter_gid_set; /* TRUE if gid set */
743 extern uid_t system_filter_uid; /* Uid for running system filter */
744 extern BOOL system_filter_uid_set; /* TRUE if uid set */
745 extern BOOL system_filtering; /* TRUE when running system filter */
747 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
748 extern int test_harness_load_avg; /* For use when testing */
749 extern int thismessage_size_limit; /* Limit for this message */
750 extern int timeout_frozen_after; /* Max time to keep frozen messages */
751 extern BOOL timestamps_utc; /* Use UTC for all times */
752 extern int transport_count; /* Count of bytes transported */
753 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
754 extern int transport_filter_timeout; /* Timeout for same */
755 extern BOOL transport_filter_timed_out; /* True if it did */
757 extern transport_info transports_available[]; /* Vector of available transports */
758 extern transport_instance *transports; /* Chain of instantiated transports */
759 extern transport_instance transport_defaults; /* Default values */
761 extern int transport_write_timeout;/* Set to time out individual writes */
763 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
764 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
765 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
766 extern tree_node *tree_unusable; /* Tree of unusable addresses */
768 extern BOOL trusted_caller; /* Caller is trusted */
769 extern gid_t *trusted_groups; /* List of trusted groups */
770 extern uid_t *trusted_users; /* List of trusted users */
771 extern uschar *timezone_string; /* Required timezone setting */
773 extern uschar *unknown_login; /* To use when login id unknown */
774 extern uschar *unknown_username; /* Ditto */
775 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
776 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
777 extern uschar *uucp_from_sender; /* For building the sender */
779 extern uschar *warn_message_file; /* Template for warning messages */
780 extern uschar *warnmsg_delay; /* String form of delay time */
781 extern uschar *warnmsg_recipients; /* Recipients of warning message */
782 extern BOOL write_rejectlog; /* Control of reject logging */
784 extern uschar *version_copyright; /* Copyright notice */
785 extern uschar *version_date; /* Date of compilation */
786 extern uschar *version_cnumber; /* Compile number */
787 extern uschar *version_string; /* Version string */
789 extern int warning_count; /* Delay warnings sent for this msg */
791 /* End of globals.h */
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