63f9059b639cd32846378ee690be6ea4396ef3a7
[exim.git] / src / src / globals.h
1 /* $Cambridge: exim/src/src/globals.h,v 1.19 2005/05/24 08:15:02 tom Exp $ */
2
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
6
7 /* Copyright (c) University of Cambridge 1995 - 2005 */
8 /* See the file NOTICE for conditions of use and distribution. */
9
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. */
14
15 /* First put any specials that are required for some operating systems. */
16
17 #ifdef NEED_H_ERRNO
18 extern int h_errno;
19 #endif
20
21 /* Now things that are present only when configured. */
22
23 #ifdef EXIM_PERL
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 */
27 #endif
28
29 #ifdef EXPAND_DLFUNC
30 extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
31 #endif
32
33 #ifdef LOOKUP_IBASE
34 extern uschar *ibase_servers;
35 #endif
36
37 #ifdef LOOKUP_LDAP
38 extern uschar *eldap_default_servers; /* List of default servers */
39 extern int eldap_version; /* LDAP version */
40 #endif
41
42 #ifdef LOOKUP_MYSQL
43 extern uschar *mysql_servers; /* List of servers and connect info */
44 #endif
45
46 #ifdef LOOKUP_ORACLE
47 extern uschar *oracle_servers; /* List of servers and connect info */
48 #endif
49
50 #ifdef LOOKUP_PGSQL
51 extern uschar *pgsql_servers; /* List of servers and connect info */
52 #endif
53
54 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
55 extern BOOL move_frozen_messages; /* Get them out of the normal directory */
56 #endif
57
58 /* These variables are outside the #ifdef because it keeps the code less
59 cluttered in several places (e.g. during logging) if we can always refer to
60 them. Also, the tls_ variables are now always visible. */
61
62 extern int tls_active; /* fd/socket when in a TLS session */
63 extern BOOL tls_certificate_verified; /* Client certificate verified */
64 extern uschar *tls_cipher; /* Cipher used */
65 extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
66 extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
67 extern uschar *tls_peerdn; /* DN from peer */
68
69 #ifdef SUPPORT_TLS
70 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
71 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
72 extern uschar *tls_certificate; /* Certificate file */
73 extern uschar *tls_crl; /* CRL File */
74 extern uschar *tls_dhparam; /* DH param file */
75 extern BOOL tls_offered; /* Server offered TLS */
76 extern uschar *tls_privatekey; /* Private key file */
77 extern BOOL tls_remember_esmtp; /* For YAEB */
78 extern uschar *tls_require_ciphers; /* So some can be avoided */
79 extern uschar *tls_try_verify_hosts; /* Optional client verification */
80 extern uschar *tls_verify_certificates;/* Path for certificates to check */
81 extern uschar *tls_verify_hosts; /* Mandatory client verification */
82 #endif
83
84
85 /* Input-reading functions for messages, so we can use special ones for
86 incoming TCP/IP. */
87
88 extern int (*receive_getc)(void);
89 extern int (*receive_ungetc)(int);
90 extern int (*receive_feof)(void);
91 extern int (*receive_ferror)(void);
92
93
94 /* For clearing, saving, restoring address expansion variables. We have to have
95 the size of this vector set explicitly, because it is referenced from more than
96 one module. */
97
98 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
99
100 /* General global variables */
101
102 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
103 extern tree_node *acl_anchor; /* Tree of named ACLs */
104 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
105 #ifdef WITH_CONTENT_SCAN
106 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
107 #endif
108 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
109 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
110 extern uschar *acl_smtp_data; /* ACL run after DATA received */
111 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
112 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
113 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
114 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
115 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
116 #ifdef WITH_CONTENT_SCAN
117 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
118 #endif
119 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
120 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
121 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
122 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
123 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
124 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
125 extern uschar *acl_var[ACL_C_MAX+ACL_M_MAX]; /* User variables */
126 extern uschar *acl_verify_message; /* User message for verify failure */
127 extern header_line *acl_warn_headers; /* Warning headers added by ACL */
128 extern string_item *acl_warn_logged; /* Logged lines */
129 extern int acl_wherecodes[]; /* Response codes for ACL fails */
130 extern uschar *acl_wherenames[]; /* Names for messages */
131 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
132 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
133 extern address_item *addr_duplicate; /* Duplicate address list */
134 extern address_item address_defaults; /* Default data for address item */
135 extern uschar *address_file; /* Name of file when delivering to one */
136 extern uschar *address_pipe; /* Pipe command when delivering to one */
137 extern BOOL address_test_mode; /* True for -bt */
138 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
139 extern int addresslist_count; /* Number defined */
140 extern gid_t *admin_groups; /* List of admin groups */
141 extern BOOL admin_user; /* True if caller can do admin */
142 extern BOOL allow_domain_literals; /* As it says */
143 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
144 extern BOOL allow_unqualified_recipient; /* As it says */
145 extern BOOL allow_unqualified_sender; /* Ditto */
146 extern BOOL allow_utf8_domains; /* For experimenting */
147 extern uschar *authenticated_id; /* ID that was authenticated */
148 extern uschar *authenticated_sender; /* From AUTH on MAIL */
149 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
150 extern uschar *auth_advertise_hosts; /* Only advertise to these */
151 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
152 extern auth_instance *auths; /* Chain of instantiated auths */
153 extern auth_instance auth_defaults; /* Default values */
154 extern uschar *auth_defer_msg; /* Error message for log */
155 extern uschar *auth_defer_user_msg; /* Error message for user */
156 extern int auto_thaw; /* Auto-thaw interval */
157 #ifdef WITH_CONTENT_SCAN
158 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
159 #endif
160
161 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
162 extern uschar *base62_chars; /* Table of base-62 characters */
163 extern uschar *bi_command; /* Command for -bi option */
164 extern uschar *big_buffer; /* Used for various temp things */
165 extern int big_buffer_size; /* Current size (can expand) */
166 #ifdef EXPERIMENTAL_BRIGHTMAIL
167 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
168 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
169 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
170 extern uschar *bmi_config_file; /* Brightmail config file */
171 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
172 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
173 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
174 #endif
175 extern int body_linecount; /* Line count in body */
176 extern int body_zerocount; /* Binary zero count in body */
177 extern uschar *bounce_message_file; /* Template file */
178 extern uschar *bounce_message_text; /* One-liner */
179 extern uschar *bounce_recipient; /* When writing an errmsg */
180 extern BOOL bounce_return_body; /* Include body in returned message */
181 extern BOOL bounce_return_message; /* Include message in bounce */
182 extern int bounce_return_size_limit; /* Max amount to return */
183 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
184 extern int bsmtp_transaction_linecount; /* Start of last transaction */
185
186 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
187 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
188 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
189 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
190 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
191 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
192 extern int check_log_inodes; /* Minimum for message acceptance */
193 extern int check_log_space; /* Minimum for message acceptance */
194 extern int check_spool_inodes; /* Minimum for message acceptance */
195 extern int check_spool_space; /* Minimum for message acceptance */
196 extern int clmacro_count; /* Number of command line macros */
197 extern uschar *clmacros[]; /* Copy of them, for re-exec */
198 extern int connection_max_messages;/* Max down one SMTP connection */
199 extern BOOL config_changed; /* True if -C used */
200 extern FILE *config_file; /* Configuration file */
201 extern uschar *config_filename; /* Configuration file name */
202 #ifdef CONFIGURE_GROUP
203 extern gid_t config_gid; /* Additional group owner */
204 #endif
205 extern int config_lineno; /* Line number */
206 extern uschar *config_main_filelist; /* List of possible config files */
207 extern uschar *config_main_filename; /* File name actually used */
208 #ifdef CONFIGURE_OWNER
209 extern uid_t config_uid; /* Additional owner */
210 #endif
211 extern uschar *continue_hostname; /* Host for continued delivery */
212 extern uschar *continue_host_address; /* IP address for ditto */
213 extern BOOL continue_more; /* Flag more addresses waiting */
214 extern int continue_sequence; /* Sequence num for continued delivery */
215 extern uschar *continue_transport; /* Transport for continued delivery */
216
217 extern uschar *csa_status; /* Client SMTP Authorization result */
218
219 extern BOOL daemon_listen; /* True if listening required */
220 extern uschar *daemon_smtp_port; /* Can be a list of ports */
221 extern BOOL debug_daemon; /* Debug the daemon process only */
222 extern int debug_fd; /* The fd for debug_file */
223 extern FILE *debug_file; /* Where to write debugging info */
224 extern bit_table debug_options[]; /* Table of debug options */
225 extern int debug_options_count; /* Size of table */
226 extern int delay_warning[]; /* Times between warnings */
227 extern uschar *delay_warning_condition; /* Condition string for warnings */
228 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
229
230 extern uschar *deliver_address_data; /* Arbitrary data for an address */
231 extern int deliver_datafile; /* FD for data part of message */
232 extern uschar *deliver_domain; /* The local domain for delivery */
233 extern uschar *deliver_domain_data; /* From domain lookup */
234 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
235 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
236 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
237 extern BOOL deliver_firsttime; /* True for first delivery attempt */
238 extern BOOL deliver_force; /* TRUE if delivery was forced */
239 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
240 extern int deliver_frozen_at; /* Time of freezing */
241 extern uschar *deliver_home; /* Home directory for pipes */
242 extern uschar *deliver_host; /* (First) host for routed local deliveries */
243 /* Remote host for filter */
244 extern uschar *deliver_host_address; /* Address for remote delivery filter */
245 extern uschar *deliver_in_buffer; /* Buffer for copying file */
246 extern ino_t deliver_inode; /* Inode for appendfile */
247 extern uschar *deliver_localpart; /* The local part for delivery */
248 extern uschar *deliver_localpart_data; /* From local part lookup */
249 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
250 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
251 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
252 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
253 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
254 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
255 extern uschar *deliver_out_buffer; /* Buffer for copying file */
256 extern int deliver_queue_load_max; /* Different value for queue running */
257 extern address_item *deliver_recipients; /* Current set of addresses */
258 extern uschar *deliver_selectstring; /* For selecting by recipient */
259 extern BOOL deliver_selectstring_regex; /* String is regex */
260 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
261 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
262 #ifdef WITH_OLD_DEMIME
263 extern int demime_errorlevel; /* Severity of MIME error */
264 extern int demime_ok; /* Nonzero if message has been demimed */
265 extern uschar *demime_reason; /* Reason for broken MIME container */
266 #endif
267 extern BOOL disable_logging; /* Disables log writing when TRUE */
268
269 #ifdef EXPERIMENTAL_DOMAINKEYS
270 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
271 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
272 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
273 #endif
274
275 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
276 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
277 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
278 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
279 extern int dns_retrans; /* Retransmission time setting */
280 extern int dns_retry; /* Number of retries */
281 extern uschar *dnslist_domain; /* DNS (black) list domain */
282 extern uschar *dnslist_text; /* DNS (black) list text message */
283 extern uschar *dnslist_value; /* DNS (black) list IP address */
284 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
285 extern int domainlist_count; /* Number defined */
286 extern BOOL dont_deliver; /* TRUE for -N option */
287 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
288
289 /* This option is now a no-opt, retained for compatibility */
290 extern BOOL drop_cr; /* For broken local MUAs */
291
292 extern BOOL enable_dollar_recipients; /* Make $recipients available */
293 extern int envelope_to_remove; /* Remove envelope_to_headers */
294 extern int errno_quota; /* Quota errno in this OS */
295 extern int error_handling; /* Error handling style */
296 extern uschar *errors_copy; /* For taking copies of errors */
297 extern uschar *errors_reply_to; /* Reply-to for error messages */
298 extern int errors_sender_rc; /* Return after message to sender*/
299 extern gid_t exim_gid; /* To be used with exim_uid */
300 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
301 extern uschar *exim_path; /* Path to exec exim */
302 extern uid_t exim_uid; /* Non-root uid for exim */
303 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
304 extern int expand_forbid; /* RDO flags for forbidding things */
305 extern int expand_nlength[]; /* Lengths of numbered strings */
306 extern int expand_nmax; /* Max numerical value */
307 extern uschar *expand_nstring[]; /* Numbered strings */
308 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
309 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
310 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
311
312 extern int fake_response; /* Fake FAIL or DEFER response to data */
313 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
314 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
315 extern BOOL filter_running; /* TRUE while running a filter */
316 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
317 extern int filter_test; /* Filter test type */
318 extern uschar *filter_test_sfile; /* System filter test file */
319 extern uschar *filter_test_ufile; /* User filter test file */
320 extern uschar *filter_thisaddress; /* For address looping */
321 extern int finduser_retries; /* Retry count for getpwnam() */
322 extern uid_t fixed_never_users[]; /* Can't be overridden */
323 #ifdef WITH_OLD_DEMIME
324 extern uschar *found_extension; /* demime acl condition: file extension found */
325 #endif
326 extern uschar *freeze_tell; /* Message on (some) freezings */
327 extern uschar *fudged_queue_times; /* For use in test harness */
328
329 extern uschar *gecos_name; /* To be expanded when pattern matches */
330 extern uschar *gecos_pattern; /* Pattern to match */
331 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
332
333 extern int header_insert_maxlen; /* Max for inserting headers */
334 extern int header_maxsize; /* Max total length for header */
335 extern int header_line_maxsize; /* Max for an individual line */
336 extern header_name header_names[]; /* Table of header names */
337 extern int header_names_size; /* Number of entries */
338 extern BOOL header_rewritten; /* TRUE if header changed by router */
339 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
340 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
341 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
342 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
343 extern BOOL helo_verified; /* True if HELO verified */
344 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
345 extern uschar *hex_digits; /* Used in several places */
346 extern uschar *hold_domains; /* Hold up deliveries to these */
347 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
348 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
349 extern uschar *host_data; /* Obtained from lookup in ACL */
350 extern uschar *host_lookup; /* For which IP addresses are always looked up */
351 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
352 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
353 extern uschar *host_lookup_order; /* Order of host lookup types */
354 extern uschar *host_lookup_msg; /* Text for why it failed */
355 extern int host_number; /* For sharing spools */
356 extern uschar *host_number_string; /* For expanding */
357 extern uschar *host_reject_connection; /* Reject these hosts */
358 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
359 extern int hostlist_count; /* Number defined */
360 extern uschar *hosts_connection_nolog; /* Limits the logging option */
361 extern uschar *hosts_treat_as_local; /* For routing */
362
363 extern int ignore_bounce_errors_after; /* Keep them for this time. */
364 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
365 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
366 extern BOOL is_inetd; /* True for inetd calls */
367
368 extern int journal_fd; /* Fd for journal file */
369
370 extern int keep_malformed; /* Time to keep malformed messages */
371
372 extern uschar *eldap_dn; /* Where LDAP DNs are left */
373 extern int load_average; /* Most recently read load average */
374 extern BOOL local_error_message; /* True if handling one of these */
375 extern BOOL local_from_check; /* For adding Sender: (global value) */
376 extern uschar *local_from_prefix; /* Permitted prefixes */
377 extern uschar *local_from_suffix; /* Permitted suffixes */
378 extern uschar *local_interfaces; /* For forcing specific interfaces */
379 extern uschar *local_scan_data; /* Text returned by local_scan() */
380 extern optionlist local_scan_options[];/* Option list for local_scan() */
381 extern int local_scan_options_count; /* Size of the list */
382 extern int local_scan_timeout; /* Timeout for local_scan() */
383 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
384 extern gid_t local_user_gid; /* As it says; may be set in routers */
385 extern uid_t local_user_uid; /* As it says; may be set in routers */
386 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
387 extern int localpartlist_count; /* Number defined */
388 extern uschar *log_buffer; /* For constructing log entries */
389 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
390 extern uschar *log_file_path; /* If unset, use default */
391 extern bit_table log_options[]; /* Table of options */
392 extern int log_options_count; /* Size of table */
393 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
394 extern uschar *log_selector_string; /* As supplied in the config */
395 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
396 extern BOOL log_testing_mode; /* TRUE in various testing modes */
397 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
398 extern uschar *login_sender_address; /* The actual sender address */
399 extern lookup_info lookup_list[]; /* Vector of available lookups */
400 extern int lookup_list_count; /* Number of entries in the list */
401 extern int lookup_open_max; /* Max lookup files to cache */
402 extern uschar *lookup_value; /* Value looked up from file */
403
404 extern macro_item *macros; /* Configuration macros */
405 extern uschar *mailstore_basename; /* For mailstore deliveries */
406 #ifdef WITH_CONTENT_SCAN
407 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
408 #endif
409 extern int max_username_length; /* For systems with broken getpwnam() */
410 extern int message_age; /* In seconds */
411 extern uschar *message_body; /* Start of message body for filter */
412 extern uschar *message_body_end; /* End of message body for filter */
413 extern int message_body_size; /* Sic */
414 extern int message_body_visible; /* Amount visible in message_body */
415 extern int message_ended; /* State of message reading and how ended */
416 extern uschar *message_headers; /* When built */
417 extern uschar message_id_option[]; /* -E<message-id> for use as option */
418 extern uschar *message_id_external; /* External form of following */
419 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
420 extern uschar *message_id_text; /* Expanded to form message_id */
421 extern struct timeval message_id_tv; /* Time used to create last message_id */
422 extern int message_linecount; /* As it says */
423 extern BOOL message_logs; /* TRUE to write message logs */
424 extern int message_size; /* Size of message */
425 extern uschar *message_size_limit; /* As it says */
426 extern uschar message_subdir[]; /* Subdirectory for messages */
427 extern uschar *message_reference; /* Reference for error messages */
428
429 /* MIME ACL expandables */
430 #ifdef WITH_CONTENT_SCAN
431 extern int mime_anomaly_level;
432 extern uschar *mime_anomaly_text;
433 extern uschar *mime_boundary;
434 extern uschar *mime_charset;
435 extern uschar *mime_content_description;
436 extern uschar *mime_content_disposition;
437 extern uschar *mime_content_id;
438 extern unsigned int mime_content_size;
439 extern uschar *mime_content_transfer_encoding;
440 extern uschar *mime_content_type;
441 extern uschar *mime_decoded_filename;
442 extern uschar *mime_filename;
443 extern int mime_is_multipart;
444 extern int mime_is_coverletter;
445 extern int mime_is_rfc822;
446 extern int mime_part_count;
447 #endif
448
449 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
450
451 extern uid_t *never_users; /* List of uids never to be used */
452 #ifdef WITH_CONTENT_SCAN
453 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
454 #endif
455 extern BOOL no_multiline_responses; /* For broken clients */
456
457 extern optionlist optionlist_auths[]; /* These option lists are made */
458 extern int optionlist_auths_size; /* global so that readconf can */
459 extern optionlist optionlist_routers[]; /* see them for printing out */
460 extern int optionlist_routers_size; /* the options. */
461 extern optionlist optionlist_transports[];
462 extern int optionlist_transports_size;
463
464 extern uid_t original_euid; /* Original effective uid */
465 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
466 extern uschar *originator_login; /* Login of same */
467 extern uschar *originator_name; /* Full name of same */
468 extern uid_t originator_uid; /* Uid of ditto */
469 extern uschar *override_local_interfaces; /* Value of -oX argument */
470 extern uschar *override_pid_file_path; /* Value of -oP argument */
471
472 extern BOOL parse_allow_group; /* Allow group syntax */
473 extern BOOL parse_found_group; /* In the middle of a group */
474 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
475 extern uschar *pid_file_path; /* For writing daemon pids */
476 extern uschar *pipelining_advertise_hosts; /* As it says */
477 extern BOOL preserve_message_logs; /* Save msglog files */
478 extern uschar *primary_hostname; /* Primary name of this computer */
479 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
480 extern uschar process_info[]; /* For SIGUSR1 output */
481 extern uschar *process_log_path; /* Alternate path */
482 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
483
484 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
485 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
486 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
487 extern uschar *queue_domains; /* Queue these domains */
488 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
489 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
490 extern BOOL queue_run_force; /* TRUE to force during queue run */
491 extern BOOL queue_run_local; /* Local deliveries only in queue run */
492 extern BOOL queue_running; /* TRUE for queue running process and */
493 /* immediate children */
494 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
495 extern int queue_run_pipe; /* Pipe for synchronizing */
496 extern int queue_interval; /* Queue running interval */
497 extern BOOL queue_only; /* TRUE to disable immediate delivery */
498 extern int queue_only_load; /* Max load before auto-queue */
499 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
500 extern BOOL queue_only_override; /* Allow override from command line */
501 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
502 extern BOOL queue_run_in_order; /* As opposed to random */
503 extern int queue_run_max; /* Max queue runners */
504 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
505 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
506
507 extern unsigned int random_seed; /* Seed for random numbers */
508 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
509 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
510 extern uschar *raw_active_hostname; /* Pre-expansion */
511 extern uschar *raw_sender; /* Before rewriting */
512 extern uschar **raw_recipients; /* Before rewriting */
513 extern int raw_recipients_count;
514 extern int rcpt_count; /* Count of RCPT commands in a message */
515 extern int rcpt_fail_count; /* Those that got 5xx */
516 extern int rcpt_defer_count; /* Those that got 4xx */
517 extern gid_t real_gid; /* Real gid */
518 extern uid_t real_uid; /* Real user running program */
519 extern BOOL really_exim; /* FALSE in utilities */
520 extern BOOL receive_call_bombout; /* Flag for crashing log */
521 extern int receive_linecount; /* Mainly for BSMTP errors */
522 extern int receive_messagecount; /* Mainly for BSMTP errors */
523 extern int receive_timeout; /* For non-SMTP acceptance */
524 extern int received_count; /* Count of Received: headers */
525 extern uschar *received_for; /* For "for" field */
526 extern uschar *received_header_text; /* Definition of Received: header */
527 extern int received_headers_max; /* Max count of Received: headers */
528 extern int received_time; /* Time the message was received */
529 extern uschar *recipient_data; /* lookup data for recipients */
530 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
531 extern uschar *recipient_verify_failure; /* What went wrong */
532 extern BOOL recipients_discarded; /* By an ACL */
533 extern int recipients_list_max; /* Maximum number fitting in list */
534 extern int recipients_max; /* Max permitted */
535 extern int recipients_max_reject; /* If TRUE, reject whole message */
536 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
537 extern const pcre *regex_check_dns_names; /* For DNS name checking */
538 extern const pcre *regex_From; /* For recognizing "From_" lines */
539 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
540 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
541 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
542 #ifdef WITH_CONTENT_SCAN
543 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
544 #endif
545 extern int remote_delivery_count; /* Number of remote addresses */
546 extern int remote_max_parallel; /* Maximum parallel delivery */
547 extern uschar *remote_sort_domains; /* Remote domain sorting order */
548 extern retry_config *retries; /* Chain of retry config information */
549 extern int retry_data_expire; /* When to expire retry data */
550 extern int retry_interval_max; /* Absolute maximum */
551 extern int retry_maximum_timeout; /* The maximum timeout */
552 extern uschar *return_path; /* Return path for a message */
553 extern BOOL return_path_remove; /* Remove return-path headers */
554 extern int rewrite_existflags; /* Indicate which headers have rewrites */
555 extern uschar *rfc1413_hosts; /* RFC hosts */
556 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
557 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
558 extern uid_t root_uid; /* The uid for root */
559 extern router_info routers_available[];/* Vector of available routers */
560 extern router_instance *routers; /* Chain of instantiated routers */
561 extern router_instance router_defaults;/* Default values */
562 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
563 extern ip_address_item *running_interfaces; /* Host's running interfaces */
564 extern uschar *running_status; /* Flag string for testing */
565 extern int runrc; /* rc from ${run} */
566
567 extern uschar *search_error_message; /* Details of lookup problem */
568 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
569 extern uschar *self_hostname; /* Self host after routing->directors */
570 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
571 extern uschar *sender_address_data; /* address_data from sender verify */
572 extern BOOL sender_address_forced; /* Set by -f */
573 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
574 extern uschar *sender_data; /* lookup result for senders */
575 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
576 extern uschar *sender_fullhost; /* Sender host name + address */
577 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
578 extern uschar **sender_host_aliases; /* Points to list of alias names */
579 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
580 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
581 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
582 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
583 extern BOOL sender_local; /* TRUE for local senders */
584 extern uschar *sender_rate; /* Sender rate computed by ACL */
585 extern uschar *sender_rate_limit; /* Configured rate limit */
586 extern uschar *sender_rate_period; /* Configured smoothing period */
587 extern uschar *sender_rcvhost; /* Host data for Received: */
588 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
589 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
590 extern uschar *sender_verify_failure; /* What went wrong */
591 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
592 extern address_item *sender_verified_failed; /* The one that caused denial */
593 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
594 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
595 extern int smtp_accept_count; /* Count of connections */
596 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
597 extern int smtp_accept_max; /* Max SMTP connections */
598 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
599 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
600 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
601 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
602 extern int smtp_accept_queue; /* Queue after so many connections */
603 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
604 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
605 extern uschar *smtp_active_hostname; /* Hostname for this message */
606 extern BOOL smtp_authenticated; /* Sending client has authenticated */
607 extern uschar *smtp_banner; /* Banner string (to be expanded) */
608 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
609 extern uschar *smtp_command_argument; /* When running certain ACLs */
610 extern int smtp_connect_backlog; /* Max backlog permitted */
611 extern double smtp_delay_mail; /* Current MAIL delay */
612 extern double smtp_delay_rcpt; /* Current RCPT delay */
613 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
614 extern uschar *smtp_etrn_command; /* Command to run */
615 extern BOOL smtp_etrn_serialize; /* Only one at once */
616 extern FILE *smtp_in; /* Incoming SMTP input file */
617 extern int smtp_load_reserve; /* Only from reserved if load > this */
618 extern int smtp_mailcmd_count; /* Count of MAIL commands */
619 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
620 extern int smtp_max_unknown_commands; /* As it says */
621 extern FILE *smtp_out; /* Incoming SMTP output file */
622 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
623 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
624 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
625 extern uschar *smtp_read_error; /* Message for SMTP input error */
626 extern int smtp_receive_timeout; /* Applies to each received line */
627 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
628 extern BOOL smtp_return_error_details; /* TRUE to return full info */
629 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
630 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
631 extern int smtp_rlm_limit; /* Max delay */
632 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
633 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
634 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
635 extern int smtp_rlr_limit; /* Max delay */
636 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
637 extern BOOL smtp_use_pipelining; /* Global for passed connections */
638 extern BOOL smtp_use_size; /* Global for passed connections */
639
640 #ifdef WITH_CONTENT_SCAN
641 extern uschar *spamd_address; /* address for the spamassassin daemon */
642 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
643 extern uschar *spam_report; /* the spamd report (multiline) */
644 extern uschar *spam_score; /* the spam score (float) */
645 extern uschar *spam_score_int; /* spam_score * 10 (int) */
646 #endif
647 #ifdef EXPERIMENTAL_SPF
648 extern uschar *spf_header_comment; /* spf header comment */
649 extern uschar *spf_received; /* SPF-Received: header */
650 extern uschar *spf_result; /* spf result in string form */
651 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
652 #endif
653 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
654 extern uschar *spool_directory; /* Name of spool directory */
655 #ifdef EXPERIMENTAL_SRS
656 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
657 extern uschar *srs_db_address; /* SRS db address */
658 extern uschar *srs_db_key; /* SRS db key */
659 extern int srs_hashlength; /* SRS hash length */
660 extern int srs_hashmin; /* SRS minimum hash length */
661 extern int srs_maxage; /* SRS max age */
662 extern uschar *srs_orig_sender; /* SRS original sender */
663 extern uschar *srs_orig_recipient; /* SRS original recipient */
664 extern uschar *srs_recipient; /* SRS recipient */
665 extern uschar *srs_secrets; /* SRS secrets list */
666 extern uschar *srs_status; /* SRS staus */
667 extern BOOL srs_usehash; /* SRS use hash flag */
668 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
669 #endif
670 extern int string_datestamp_offset;/* After insertion by string_format */
671 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
672 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
673 extern uschar *submission_domain; /* Domain for submission mode */
674 extern BOOL submission_mode; /* Can be forced from ACL */
675 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
676 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
677 extern int syslog_facility; /* As defined by Syslog.h */
678 extern uschar *syslog_processname; /* 'ident' param to openlog() */
679 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
680 extern uschar *system_filter; /* Name of system filter file */
681
682 extern uschar *system_filter_directory_transport; /* Transports for the */
683 extern uschar *system_filter_file_transport; /* system filter */
684 extern uschar *system_filter_pipe_transport;
685 extern uschar *system_filter_reply_transport;
686
687 extern gid_t system_filter_gid; /* Gid for running system filter */
688 extern BOOL system_filter_gid_set; /* TRUE if gid set */
689 extern uid_t system_filter_uid; /* Uid for running system filter */
690 extern BOOL system_filter_uid_set; /* TRUE if uid set */
691 extern BOOL system_filtering; /* TRUE when running system filter */
692
693 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
694 extern int thismessage_size_limit; /* Limit for this message */
695 extern int timeout_frozen_after; /* Max time to keep frozen messages */
696 extern BOOL timestamps_utc; /* Use UTC for all times */
697 extern int transport_count; /* Count of bytes transported */
698 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
699 extern int transport_filter_timeout; /* Timeout for same */
700 extern BOOL transport_filter_timed_out; /* True if it did */
701
702 extern transport_info transports_available[]; /* Vector of available transports */
703 extern transport_instance *transports; /* Chain of instantiated transports */
704 extern transport_instance transport_defaults; /* Default values */
705
706 extern int transport_write_timeout;/* Set to time out individual writes */
707
708 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
709 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
710 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
711 extern tree_node *tree_unusable; /* Tree of unusable addresses */
712
713 extern BOOL trusted_caller; /* Caller is trusted */
714 extern gid_t *trusted_groups; /* List of trusted groups */
715 extern uid_t *trusted_users; /* List of trusted users */
716 extern uschar *timezone_string; /* Required timezone setting */
717
718 extern uschar *unknown_login; /* To use when login id unknown */
719 extern uschar *unknown_username; /* Ditto */
720 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
721 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
722 extern uschar *uucp_from_sender; /* For building the sender */
723
724 extern uschar *warn_message_file; /* Template for warning messages */
725 extern uschar *warnmsg_delay; /* String form of delay time */
726 extern uschar *warnmsg_recipients; /* Recipients of warning message */
727 extern BOOL write_rejectlog; /* Control of reject logging */
728
729 extern uschar *version_copyright; /* Copyright notice */
730 extern uschar *version_date; /* Date of compilation */
731 extern uschar *version_cnumber; /* Compile number */
732 extern uschar *version_string; /* Version string */
733
734 extern int warning_count; /* Delay warnings sent for this msg */
735
736 /* End of globals.h */