1 /* $Cambridge: exim/src/src/globals.h,v 1.39 2006/07/13 13:53:33 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2006 */
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 const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
75 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
76 extern uschar *tls_certificate; /* Certificate file */
77 extern uschar *tls_crl; /* CRL File */
78 extern uschar *tls_dhparam; /* DH param file */
79 extern BOOL tls_offered; /* Server offered TLS */
80 extern uschar *tls_privatekey; /* Private key file */
81 extern BOOL tls_remember_esmtp; /* For YAEB */
82 extern uschar *tls_require_ciphers; /* So some can be avoided */
83 extern uschar *tls_try_verify_hosts; /* Optional client verification */
84 extern uschar *tls_verify_certificates;/* Path for certificates to check */
85 extern uschar *tls_verify_hosts; /* Mandatory client verification */
89 /* Input-reading functions for messages, so we can use special ones for
92 extern int (*receive_getc)(void);
93 extern int (*receive_ungetc)(int);
94 extern int (*receive_feof)(void);
95 extern int (*receive_ferror)(void);
98 /* For clearing, saving, restoring address expansion variables. We have to have
99 the size of this vector set explicitly, because it is referenced from more than
102 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
104 /* General global variables */
106 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
107 extern header_line *acl_added_headers; /* Headers added by an ACL */
108 extern tree_node *acl_anchor; /* Tree of named ACLs */
109 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
110 #ifdef WITH_CONTENT_SCAN
111 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
113 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
114 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
115 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
116 extern uschar *acl_smtp_data; /* ACL run after DATA received */
117 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
118 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
119 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
120 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
121 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
122 #ifdef WITH_CONTENT_SCAN
123 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
125 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
126 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
127 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
128 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
129 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
130 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
131 extern uschar *acl_var[ACL_CVARS+ACL_MVARS]; /* User ACL variables */
132 extern uschar *acl_verify_message; /* User message for verify failure */
133 extern string_item *acl_warn_logged; /* Logged lines */
134 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
135 extern uschar *acl_wherenames[]; /* Names for messages */
136 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
137 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
138 extern address_item *addr_duplicate; /* Duplicate address list */
139 extern address_item address_defaults; /* Default data for address item */
140 extern uschar *address_file; /* Name of file when delivering to one */
141 extern uschar *address_pipe; /* Pipe command when delivering to one */
142 extern BOOL address_test_mode; /* True for -bt */
143 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
144 extern int addresslist_count; /* Number defined */
145 extern gid_t *admin_groups; /* List of admin groups */
146 extern BOOL admin_user; /* True if caller can do admin */
147 extern BOOL allow_auth_unadvertised;/* As it says */
148 extern BOOL allow_domain_literals; /* As it says */
149 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
150 extern BOOL allow_unqualified_recipient; /* As it says */
151 extern BOOL allow_unqualified_sender; /* Ditto */
152 extern BOOL allow_utf8_domains; /* For experimenting */
153 extern uschar *authenticated_id; /* ID that was authenticated */
154 extern uschar *authenticated_sender; /* From AUTH on MAIL */
155 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
156 extern uschar *auth_advertise_hosts; /* Only advertise to these */
157 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
158 extern auth_instance *auths; /* Chain of instantiated auths */
159 extern auth_instance auth_defaults; /* Default values */
160 extern uschar *auth_defer_msg; /* Error message for log */
161 extern uschar *auth_defer_user_msg; /* Error message for user */
162 extern uschar *auth_vars[]; /* $authn variables */
163 extern int auto_thaw; /* Auto-thaw interval */
164 #ifdef WITH_CONTENT_SCAN
165 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
168 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
169 extern uschar *base62_chars; /* Table of base-62 characters */
170 extern uschar *bi_command; /* Command for -bi option */
171 extern uschar *big_buffer; /* Used for various temp things */
172 extern int big_buffer_size; /* Current size (can expand) */
173 #ifdef EXPERIMENTAL_BRIGHTMAIL
174 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
175 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
176 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
177 extern uschar *bmi_config_file; /* Brightmail config file */
178 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
179 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
180 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
182 extern int body_linecount; /* Line count in body */
183 extern int body_zerocount; /* Binary zero count in body */
184 extern uschar *bounce_message_file; /* Template file */
185 extern uschar *bounce_message_text; /* One-liner */
186 extern uschar *bounce_recipient; /* When writing an errmsg */
187 extern BOOL bounce_return_body; /* Include body in returned message */
188 extern BOOL bounce_return_message; /* Include message in bounce */
189 extern int bounce_return_size_limit; /* Max amount to return */
190 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
191 extern int bsmtp_transaction_linecount; /* Start of last transaction */
193 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
194 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
195 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
196 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
197 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
198 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
199 extern int check_log_inodes; /* Minimum for message acceptance */
200 extern int check_log_space; /* Minimum for message acceptance */
201 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
202 extern int check_spool_inodes; /* Minimum for message acceptance */
203 extern int check_spool_space; /* Minimum for message acceptance */
204 extern int clmacro_count; /* Number of command line macros */
205 extern uschar *clmacros[]; /* Copy of them, for re-exec */
206 extern int connection_max_messages;/* Max down one SMTP connection */
207 extern BOOL config_changed; /* True if -C used */
208 extern FILE *config_file; /* Configuration file */
209 extern uschar *config_filename; /* Configuration file name */
210 #ifdef CONFIGURE_GROUP
211 extern gid_t config_gid; /* Additional group owner */
213 extern int config_lineno; /* Line number */
214 extern uschar *config_main_filelist; /* List of possible config files */
215 extern uschar *config_main_filename; /* File name actually used */
216 #ifdef CONFIGURE_OWNER
217 extern uid_t config_uid; /* Additional owner */
219 extern uschar *continue_hostname; /* Host for continued delivery */
220 extern uschar *continue_host_address; /* IP address for ditto */
221 extern BOOL continue_more; /* Flag more addresses waiting */
222 extern int continue_sequence; /* Sequence num for continued delivery */
223 extern uschar *continue_transport; /* Transport for continued delivery */
225 extern uschar *csa_status; /* Client SMTP Authorization result */
227 extern BOOL daemon_listen; /* True if listening required */
228 extern uschar *daemon_smtp_port; /* Can be a list of ports */
229 extern int daemon_startup_retries; /* Number of times to retry */
230 extern int daemon_startup_sleep; /* Sleep between retries */
231 extern BOOL debug_daemon; /* Debug the daemon process only */
232 extern int debug_fd; /* The fd for debug_file */
233 extern FILE *debug_file; /* Where to write debugging info */
234 extern bit_table debug_options[]; /* Table of debug options */
235 extern int debug_options_count; /* Size of table */
236 extern int delay_warning[]; /* Times between warnings */
237 extern uschar *delay_warning_condition; /* Condition string for warnings */
238 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
240 extern uschar *deliver_address_data; /* Arbitrary data for an address */
241 extern int deliver_datafile; /* FD for data part of message */
242 extern uschar *deliver_domain; /* The local domain for delivery */
243 extern uschar *deliver_domain_data; /* From domain lookup */
244 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
245 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
246 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
247 extern BOOL deliver_firsttime; /* True for first delivery attempt */
248 extern BOOL deliver_force; /* TRUE if delivery was forced */
249 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
250 extern int deliver_frozen_at; /* Time of freezing */
251 extern uschar *deliver_home; /* Home directory for pipes */
252 extern uschar *deliver_host; /* (First) host for routed local deliveries */
253 /* Remote host for filter */
254 extern uschar *deliver_host_address; /* Address for remote delivery filter */
255 extern uschar *deliver_in_buffer; /* Buffer for copying file */
256 extern ino_t deliver_inode; /* Inode for appendfile */
257 extern uschar *deliver_localpart; /* The local part for delivery */
258 extern uschar *deliver_localpart_data; /* From local part lookup */
259 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
260 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
261 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
262 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
263 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
264 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
265 extern uschar *deliver_out_buffer; /* Buffer for copying file */
266 extern int deliver_queue_load_max; /* Different value for queue running */
267 extern address_item *deliver_recipients; /* Current set of addresses */
268 extern uschar *deliver_selectstring; /* For selecting by recipient */
269 extern BOOL deliver_selectstring_regex; /* String is regex */
270 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
271 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
272 #ifdef WITH_OLD_DEMIME
273 extern int demime_errorlevel; /* Severity of MIME error */
274 extern int demime_ok; /* Nonzero if message has been demimed */
275 extern uschar *demime_reason; /* Reason for broken MIME container */
277 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
278 extern BOOL disable_logging; /* Disables log writing when TRUE */
280 #ifdef EXPERIMENTAL_DOMAINKEYS
281 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
282 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
283 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
286 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
287 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
288 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
289 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
290 extern int dns_retrans; /* Retransmission time setting */
291 extern int dns_retry; /* Number of retries */
292 extern uschar *dnslist_domain; /* DNS (black) list domain */
293 extern uschar *dnslist_text; /* DNS (black) list text message */
294 extern uschar *dnslist_value; /* DNS (black) list IP address */
295 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
296 extern int domainlist_count; /* Number defined */
297 extern BOOL dont_deliver; /* TRUE for -N option */
298 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
300 /* This option is now a no-opt, retained for compatibility */
301 extern BOOL drop_cr; /* For broken local MUAs */
303 extern BOOL enable_dollar_recipients; /* Make $recipients available */
304 extern int envelope_to_remove; /* Remove envelope_to_headers */
305 extern int errno_quota; /* Quota errno in this OS */
306 extern int error_handling; /* Error handling style */
307 extern uschar *errors_copy; /* For taking copies of errors */
308 extern uschar *errors_reply_to; /* Reply-to for error messages */
309 extern int errors_sender_rc; /* Return after message to sender*/
310 extern gid_t exim_gid; /* To be used with exim_uid */
311 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
312 extern uschar *exim_path; /* Path to exec exim */
313 extern uid_t exim_uid; /* Non-root uid for exim */
314 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
315 extern int expand_forbid; /* RDO flags for forbidding things */
316 extern int expand_nlength[]; /* Lengths of numbered strings */
317 extern int expand_nmax; /* Max numerical value */
318 extern uschar *expand_nstring[]; /* Numbered strings */
319 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
320 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
321 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
323 extern int fake_response; /* Fake FAIL or DEFER response to data */
324 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
325 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
326 extern BOOL filter_running; /* TRUE while running a filter */
327 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
328 extern int filter_test; /* Filter test type */
329 extern uschar *filter_test_sfile; /* System filter test file */
330 extern uschar *filter_test_ufile; /* User filter test file */
331 extern uschar *filter_thisaddress; /* For address looping */
332 extern int finduser_retries; /* Retry count for getpwnam() */
333 extern uid_t fixed_never_users[]; /* Can't be overridden */
334 #ifdef WITH_OLD_DEMIME
335 extern uschar *found_extension; /* demime acl condition: file extension found */
337 extern uschar *freeze_tell; /* Message on (some) freezings */
338 extern uschar *freeze_tell_config; /* The configured setting */
339 extern uschar *fudged_queue_times; /* For use in test harness */
341 extern uschar *gecos_name; /* To be expanded when pattern matches */
342 extern uschar *gecos_pattern; /* Pattern to match */
343 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
345 extern int header_insert_maxlen; /* Max for inserting headers */
346 extern int header_maxsize; /* Max total length for header */
347 extern int header_line_maxsize; /* Max for an individual line */
348 extern header_name header_names[]; /* Table of header names */
349 extern int header_names_size; /* Number of entries */
350 extern BOOL header_rewritten; /* TRUE if header changed by router */
351 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
352 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
353 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
354 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
355 extern BOOL helo_verified; /* True if HELO verified */
356 extern BOOL helo_verify_failed; /* True if attempt failed */
357 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
358 extern uschar *hex_digits; /* Used in several places */
359 extern uschar *hold_domains; /* Hold up deliveries to these */
360 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
361 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
362 extern uschar *host_data; /* Obtained from lookup in ACL */
363 extern uschar *host_lookup; /* For which IP addresses are always looked up */
364 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
365 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
366 extern uschar *host_lookup_order; /* Order of host lookup types */
367 extern uschar *host_lookup_msg; /* Text for why it failed */
368 extern int host_number; /* For sharing spools */
369 extern uschar *host_number_string; /* For expanding */
370 extern uschar *host_reject_connection; /* Reject these hosts */
371 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
372 extern int hostlist_count; /* Number defined */
373 extern uschar *hosts_connection_nolog; /* Limits the logging option */
374 extern uschar *hosts_treat_as_local; /* For routing */
376 extern int ignore_bounce_errors_after; /* Keep them for this time. */
377 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
378 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
379 extern BOOL is_inetd; /* True for inetd calls */
381 extern int journal_fd; /* Fd for journal file */
383 extern int keep_malformed; /* Time to keep malformed messages */
385 extern uschar *eldap_dn; /* Where LDAP DNs are left */
386 extern int load_average; /* Most recently read load average */
387 extern BOOL local_error_message; /* True if handling one of these */
388 extern BOOL local_from_check; /* For adding Sender: (global value) */
389 extern uschar *local_from_prefix; /* Permitted prefixes */
390 extern uschar *local_from_suffix; /* Permitted suffixes */
391 extern uschar *local_interfaces; /* For forcing specific interfaces */
392 extern uschar *local_scan_data; /* Text returned by local_scan() */
393 extern optionlist local_scan_options[];/* Option list for local_scan() */
394 extern int local_scan_options_count; /* Size of the list */
395 extern int local_scan_timeout; /* Timeout for local_scan() */
396 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
397 extern gid_t local_user_gid; /* As it says; may be set in routers */
398 extern uid_t local_user_uid; /* As it says; may be set in routers */
399 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
400 extern int localpartlist_count; /* Number defined */
401 extern uschar *log_buffer; /* For constructing log entries */
402 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
403 extern uschar *log_file_path; /* If unset, use default */
404 extern bit_table log_options[]; /* Table of options */
405 extern int log_options_count; /* Size of table */
406 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
407 extern uschar *log_selector_string; /* As supplied in the config */
408 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
409 extern BOOL log_testing_mode; /* TRUE in various testing modes */
410 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
411 extern uschar *login_sender_address; /* The actual sender address */
412 extern lookup_info lookup_list[]; /* Vector of available lookups */
413 extern int lookup_list_count; /* Number of entries in the list */
414 extern int lookup_open_max; /* Max lookup files to cache */
415 extern uschar *lookup_value; /* Value looked up from file */
417 extern macro_item *macros; /* Configuration macros */
418 extern uschar *mailstore_basename; /* For mailstore deliveries */
419 #ifdef WITH_CONTENT_SCAN
420 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
422 extern int max_username_length; /* For systems with broken getpwnam() */
423 extern int message_age; /* In seconds */
424 extern uschar *message_body; /* Start of message body for filter */
425 extern uschar *message_body_end; /* End of message body for filter */
426 extern int message_body_size; /* Sic */
427 extern int message_body_visible; /* Amount visible in message_body */
428 extern int message_ended; /* State of message reading and how ended */
429 extern uschar *message_headers; /* When built */
430 extern uschar message_id_option[]; /* -E<message-id> for use as option */
431 extern uschar *message_id_external; /* External form of following */
432 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
433 extern uschar *message_id_text; /* Expanded to form message_id */
434 extern struct timeval message_id_tv; /* Time used to create last message_id */
435 extern int message_linecount; /* As it says */
436 extern BOOL message_logs; /* TRUE to write message logs */
437 extern int message_size; /* Size of message */
438 extern uschar *message_size_limit; /* As it says */
439 extern uschar message_subdir[]; /* Subdirectory for messages */
440 extern uschar *message_reference; /* Reference for error messages */
442 /* MIME ACL expandables */
443 #ifdef WITH_CONTENT_SCAN
444 extern int mime_anomaly_level;
445 extern uschar *mime_anomaly_text;
446 extern uschar *mime_boundary;
447 extern uschar *mime_charset;
448 extern uschar *mime_content_description;
449 extern uschar *mime_content_disposition;
450 extern uschar *mime_content_id;
451 extern unsigned int mime_content_size;
452 extern uschar *mime_content_transfer_encoding;
453 extern uschar *mime_content_type;
454 extern uschar *mime_decoded_filename;
455 extern uschar *mime_filename;
456 extern int mime_is_multipart;
457 extern int mime_is_coverletter;
458 extern int mime_is_rfc822;
459 extern int mime_part_count;
462 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
464 extern uid_t *never_users; /* List of uids never to be used */
465 #ifdef WITH_CONTENT_SCAN
466 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
468 extern BOOL no_multiline_responses; /* For broken clients */
470 extern optionlist optionlist_auths[]; /* These option lists are made */
471 extern int optionlist_auths_size; /* global so that readconf can */
472 extern optionlist optionlist_routers[]; /* see them for printing out */
473 extern int optionlist_routers_size; /* the options. */
474 extern optionlist optionlist_transports[];
475 extern int optionlist_transports_size;
477 extern uid_t original_euid; /* Original effective uid */
478 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
479 extern uschar *originator_login; /* Login of same */
480 extern uschar *originator_name; /* Full name of same */
481 extern uid_t originator_uid; /* Uid of ditto */
482 extern uschar *override_local_interfaces; /* Value of -oX argument */
483 extern uschar *override_pid_file_path; /* Value of -oP argument */
485 extern BOOL parse_allow_group; /* Allow group syntax */
486 extern BOOL parse_found_group; /* In the middle of a group */
487 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
488 extern uschar *pid_file_path; /* For writing daemon pids */
489 extern uschar *pipelining_advertise_hosts; /* As it says */
490 extern BOOL preserve_message_logs; /* Save msglog files */
491 extern uschar *primary_hostname; /* Primary name of this computer */
492 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
493 extern uschar process_info[]; /* For SIGUSR1 output */
494 extern uschar *process_log_path; /* Alternate path */
495 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
496 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
497 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
498 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
500 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
501 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
502 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
503 extern uschar *queue_domains; /* Queue these domains */
504 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
505 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
506 extern BOOL queue_run_force; /* TRUE to force during queue run */
507 extern BOOL queue_run_local; /* Local deliveries only in queue run */
508 extern BOOL queue_running; /* TRUE for queue running process and */
509 /* immediate children */
510 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
511 extern int queue_run_pipe; /* Pipe for synchronizing */
512 extern int queue_interval; /* Queue running interval */
513 extern BOOL queue_only; /* TRUE to disable immediate delivery */
514 extern int queue_only_load; /* Max load before auto-queue */
515 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
516 extern BOOL queue_only_override; /* Allow override from command line */
517 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
518 extern BOOL queue_run_in_order; /* As opposed to random */
519 extern int queue_run_max; /* Max queue runners */
520 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
521 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
523 extern unsigned int random_seed; /* Seed for random numbers */
524 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
525 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
526 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
527 extern uschar *raw_active_hostname; /* Pre-expansion */
528 extern uschar *raw_sender; /* Before rewriting */
529 extern uschar **raw_recipients; /* Before rewriting */
530 extern int raw_recipients_count;
531 extern int rcpt_count; /* Count of RCPT commands in a message */
532 extern int rcpt_fail_count; /* Those that got 5xx */
533 extern int rcpt_defer_count; /* Those that got 4xx */
534 extern gid_t real_gid; /* Real gid */
535 extern uid_t real_uid; /* Real user running program */
536 extern BOOL really_exim; /* FALSE in utilities */
537 extern BOOL receive_call_bombout; /* Flag for crashing log */
538 extern int receive_linecount; /* Mainly for BSMTP errors */
539 extern int receive_messagecount; /* Mainly for BSMTP errors */
540 extern int receive_timeout; /* For non-SMTP acceptance */
541 extern int received_count; /* Count of Received: headers */
542 extern uschar *received_for; /* For "for" field */
543 extern uschar *received_header_text; /* Definition of Received: header */
544 extern int received_headers_max; /* Max count of Received: headers */
545 extern int received_time; /* Time the message was received */
546 extern uschar *recipient_data; /* lookup data for recipients */
547 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
548 extern uschar *recipient_verify_failure; /* What went wrong */
549 extern BOOL recipients_discarded; /* By an ACL */
550 extern int recipients_list_max; /* Maximum number fitting in list */
551 extern int recipients_max; /* Max permitted */
552 extern int recipients_max_reject; /* If TRUE, reject whole message */
553 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
554 extern const pcre *regex_check_dns_names; /* For DNS name checking */
555 extern const pcre *regex_From; /* For recognizing "From_" lines */
556 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
557 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
558 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
559 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
560 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
561 #ifdef WITH_CONTENT_SCAN
562 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
564 extern int remote_delivery_count; /* Number of remote addresses */
565 extern int remote_max_parallel; /* Maximum parallel delivery */
566 extern uschar *remote_sort_domains; /* Remote domain sorting order */
567 extern retry_config *retries; /* Chain of retry config information */
568 extern int retry_data_expire; /* When to expire retry data */
569 extern int retry_interval_max; /* Absolute maximum */
570 extern int retry_maximum_timeout; /* The maximum timeout */
571 extern uschar *return_path; /* Return path for a message */
572 extern BOOL return_path_remove; /* Remove return-path headers */
573 extern int rewrite_existflags; /* Indicate which headers have rewrites */
574 extern uschar *rfc1413_hosts; /* RFC hosts */
575 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
576 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
577 extern uid_t root_uid; /* The uid for root */
578 extern router_info routers_available[];/* Vector of available routers */
579 extern router_instance *routers; /* Chain of instantiated routers */
580 extern router_instance router_defaults;/* Default values */
581 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
582 extern ip_address_item *running_interfaces; /* Host's running interfaces */
583 extern uschar *running_status; /* Flag string for testing */
584 extern int runrc; /* rc from ${run} */
586 extern uschar *search_error_message; /* Details of lookup problem */
587 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
588 extern uschar *self_hostname; /* Self host after routing->directors */
589 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
590 extern uschar *sender_address_data; /* address_data from sender verify */
591 extern BOOL sender_address_forced; /* Set by -f */
592 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
593 extern uschar *sender_data; /* lookup result for senders */
594 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
595 extern uschar *sender_fullhost; /* Sender host name + address */
596 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
597 extern uschar **sender_host_aliases; /* Points to list of alias names */
598 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
599 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
600 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
601 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
602 extern BOOL sender_local; /* TRUE for local senders */
603 extern BOOL sender_name_forced; /* Set by -F */
604 extern uschar *sender_rate; /* Sender rate computed by ACL */
605 extern uschar *sender_rate_limit; /* Configured rate limit */
606 extern uschar *sender_rate_period; /* Configured smoothing period */
607 extern uschar *sender_rcvhost; /* Host data for Received: */
608 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
609 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
610 extern uschar *sender_verify_failure; /* What went wrong */
611 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
612 extern address_item *sender_verified_failed; /* The one that caused denial */
613 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
614 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
615 extern int smtp_accept_count; /* Count of connections */
616 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
617 extern int smtp_accept_max; /* Max SMTP connections */
618 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
619 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
620 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
621 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
622 extern int smtp_accept_queue; /* Queue after so many connections */
623 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
624 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
625 extern uschar *smtp_active_hostname; /* Hostname for this message */
626 extern BOOL smtp_authenticated; /* Sending client has authenticated */
627 extern uschar *smtp_banner; /* Banner string (to be expanded) */
628 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
629 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
630 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
631 extern int smtp_connect_backlog; /* Max backlog permitted */
632 extern double smtp_delay_mail; /* Current MAIL delay */
633 extern double smtp_delay_rcpt; /* Current RCPT delay */
634 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
635 extern uschar *smtp_etrn_command; /* Command to run */
636 extern BOOL smtp_etrn_serialize; /* Only one at once */
637 extern FILE *smtp_in; /* Incoming SMTP input file */
638 extern int smtp_load_reserve; /* Only from reserved if load > this */
639 extern int smtp_mailcmd_count; /* Count of MAIL commands */
640 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
641 extern int smtp_max_unknown_commands; /* As it says */
642 extern FILE *smtp_out; /* Incoming SMTP output file */
643 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
644 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
645 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
646 extern uschar *smtp_read_error; /* Message for SMTP input error */
647 extern int smtp_receive_timeout; /* Applies to each received line */
648 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
649 extern BOOL smtp_return_error_details; /* TRUE to return full info */
650 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
651 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
652 extern int smtp_rlm_limit; /* Max delay */
653 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
654 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
655 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
656 extern int smtp_rlr_limit; /* Max delay */
657 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
658 extern BOOL smtp_use_pipelining; /* Global for passed connections */
659 extern BOOL smtp_use_size; /* Global for passed connections */
661 #ifdef WITH_CONTENT_SCAN
662 extern uschar *spamd_address; /* address for the spamassassin daemon */
663 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
664 extern uschar *spam_report; /* the spamd report (multiline) */
665 extern uschar *spam_score; /* the spam score (float) */
666 extern uschar *spam_score_int; /* spam_score * 10 (int) */
668 #ifdef EXPERIMENTAL_SPF
669 extern uschar *spf_header_comment; /* spf header comment */
670 extern uschar *spf_received; /* SPF-Received: header */
671 extern uschar *spf_result; /* spf result in string form */
672 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
674 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
675 extern uschar *spool_directory; /* Name of spool directory */
676 #ifdef EXPERIMENTAL_SRS
677 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
678 extern uschar *srs_db_address; /* SRS db address */
679 extern uschar *srs_db_key; /* SRS db key */
680 extern int srs_hashlength; /* SRS hash length */
681 extern int srs_hashmin; /* SRS minimum hash length */
682 extern int srs_maxage; /* SRS max age */
683 extern uschar *srs_orig_sender; /* SRS original sender */
684 extern uschar *srs_orig_recipient; /* SRS original recipient */
685 extern uschar *srs_recipient; /* SRS recipient */
686 extern uschar *srs_secrets; /* SRS secrets list */
687 extern uschar *srs_status; /* SRS staus */
688 extern BOOL srs_usehash; /* SRS use hash flag */
689 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
691 extern int string_datestamp_offset;/* After insertion by string_format */
692 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
693 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
694 extern uschar *submission_domain; /* Domain for submission mode */
695 extern BOOL submission_mode; /* Can be forced from ACL */
696 extern uschar *submission_name; /* User name set from ACL */
697 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
698 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
699 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
700 extern int syslog_facility; /* As defined by Syslog.h */
701 extern uschar *syslog_processname; /* 'ident' param to openlog() */
702 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
703 extern uschar *system_filter; /* Name of system filter file */
705 extern uschar *system_filter_directory_transport; /* Transports for the */
706 extern uschar *system_filter_file_transport; /* system filter */
707 extern uschar *system_filter_pipe_transport;
708 extern uschar *system_filter_reply_transport;
710 extern gid_t system_filter_gid; /* Gid for running system filter */
711 extern BOOL system_filter_gid_set; /* TRUE if gid set */
712 extern uid_t system_filter_uid; /* Uid for running system filter */
713 extern BOOL system_filter_uid_set; /* TRUE if uid set */
714 extern BOOL system_filtering; /* TRUE when running system filter */
716 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
717 extern int thismessage_size_limit; /* Limit for this message */
718 extern int timeout_frozen_after; /* Max time to keep frozen messages */
719 extern BOOL timestamps_utc; /* Use UTC for all times */
720 extern int transport_count; /* Count of bytes transported */
721 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
722 extern int transport_filter_timeout; /* Timeout for same */
723 extern BOOL transport_filter_timed_out; /* True if it did */
725 extern transport_info transports_available[]; /* Vector of available transports */
726 extern transport_instance *transports; /* Chain of instantiated transports */
727 extern transport_instance transport_defaults; /* Default values */
729 extern int transport_write_timeout;/* Set to time out individual writes */
731 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
732 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
733 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
734 extern tree_node *tree_unusable; /* Tree of unusable addresses */
736 extern BOOL trusted_caller; /* Caller is trusted */
737 extern gid_t *trusted_groups; /* List of trusted groups */
738 extern uid_t *trusted_users; /* List of trusted users */
739 extern uschar *timezone_string; /* Required timezone setting */
741 extern uschar *unknown_login; /* To use when login id unknown */
742 extern uschar *unknown_username; /* Ditto */
743 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
744 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
745 extern uschar *uucp_from_sender; /* For building the sender */
747 extern uschar *warn_message_file; /* Template for warning messages */
748 extern uschar *warnmsg_delay; /* String form of delay time */
749 extern uschar *warnmsg_recipients; /* Recipients of warning message */
750 extern BOOL write_rejectlog; /* Control of reject logging */
752 extern uschar *version_copyright; /* Copyright notice */
753 extern uschar *version_date; /* Date of compilation */
754 extern uschar *version_cnumber; /* Compile number */
755 extern uschar *version_string; /* Version string */
757 extern int warning_count; /* Delay warnings sent for this msg */
759 /* End of globals.h */
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