5ef0d4e215fa851403355a537f603774737e92ee
[exim.git] / src / src / globals.h
1 /* $Cambridge: exim/src/src/globals.h,v 1.23 2005/08/02 11:22:24 ph10 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 int daemon_startup_retries; /* Number of times to retry */
222 extern int daemon_startup_sleep; /* Sleep between retries */
223 extern BOOL debug_daemon; /* Debug the daemon process only */
224 extern int debug_fd; /* The fd for debug_file */
225 extern FILE *debug_file; /* Where to write debugging info */
226 extern bit_table debug_options[]; /* Table of debug options */
227 extern int debug_options_count; /* Size of table */
228 extern int delay_warning[]; /* Times between warnings */
229 extern uschar *delay_warning_condition; /* Condition string for warnings */
230 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
231
232 extern uschar *deliver_address_data; /* Arbitrary data for an address */
233 extern int deliver_datafile; /* FD for data part of message */
234 extern uschar *deliver_domain; /* The local domain for delivery */
235 extern uschar *deliver_domain_data; /* From domain lookup */
236 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
237 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
238 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
239 extern BOOL deliver_firsttime; /* True for first delivery attempt */
240 extern BOOL deliver_force; /* TRUE if delivery was forced */
241 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
242 extern int deliver_frozen_at; /* Time of freezing */
243 extern uschar *deliver_home; /* Home directory for pipes */
244 extern uschar *deliver_host; /* (First) host for routed local deliveries */
245 /* Remote host for filter */
246 extern uschar *deliver_host_address; /* Address for remote delivery filter */
247 extern uschar *deliver_in_buffer; /* Buffer for copying file */
248 extern ino_t deliver_inode; /* Inode for appendfile */
249 extern uschar *deliver_localpart; /* The local part for delivery */
250 extern uschar *deliver_localpart_data; /* From local part lookup */
251 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
252 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
253 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
254 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
255 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
256 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
257 extern uschar *deliver_out_buffer; /* Buffer for copying file */
258 extern int deliver_queue_load_max; /* Different value for queue running */
259 extern address_item *deliver_recipients; /* Current set of addresses */
260 extern uschar *deliver_selectstring; /* For selecting by recipient */
261 extern BOOL deliver_selectstring_regex; /* String is regex */
262 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
263 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
264 #ifdef WITH_OLD_DEMIME
265 extern int demime_errorlevel; /* Severity of MIME error */
266 extern int demime_ok; /* Nonzero if message has been demimed */
267 extern uschar *demime_reason; /* Reason for broken MIME container */
268 #endif
269 extern BOOL disable_logging; /* Disables log writing when TRUE */
270
271 #ifdef EXPERIMENTAL_DOMAINKEYS
272 extern uschar *dk_signing_domain; /* Domain used for signing a message. */
273 extern uschar *dk_signing_selector; /* Selector used for signing a message. */
274 extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
275 #endif
276
277 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
278 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
279 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
280 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
281 extern int dns_retrans; /* Retransmission time setting */
282 extern int dns_retry; /* Number of retries */
283 extern uschar *dnslist_domain; /* DNS (black) list domain */
284 extern uschar *dnslist_text; /* DNS (black) list text message */
285 extern uschar *dnslist_value; /* DNS (black) list IP address */
286 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
287 extern int domainlist_count; /* Number defined */
288 extern BOOL dont_deliver; /* TRUE for -N option */
289 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
290
291 /* This option is now a no-opt, retained for compatibility */
292 extern BOOL drop_cr; /* For broken local MUAs */
293
294 extern BOOL enable_dollar_recipients; /* Make $recipients available */
295 extern int envelope_to_remove; /* Remove envelope_to_headers */
296 extern int errno_quota; /* Quota errno in this OS */
297 extern int error_handling; /* Error handling style */
298 extern uschar *errors_copy; /* For taking copies of errors */
299 extern uschar *errors_reply_to; /* Reply-to for error messages */
300 extern int errors_sender_rc; /* Return after message to sender*/
301 extern gid_t exim_gid; /* To be used with exim_uid */
302 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
303 extern uschar *exim_path; /* Path to exec exim */
304 extern uid_t exim_uid; /* Non-root uid for exim */
305 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
306 extern int expand_forbid; /* RDO flags for forbidding things */
307 extern int expand_nlength[]; /* Lengths of numbered strings */
308 extern int expand_nmax; /* Max numerical value */
309 extern uschar *expand_nstring[]; /* Numbered strings */
310 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
311 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
312 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
313
314 extern int fake_response; /* Fake FAIL or DEFER response to data */
315 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
316 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
317 extern BOOL filter_running; /* TRUE while running a filter */
318 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
319 extern int filter_test; /* Filter test type */
320 extern uschar *filter_test_sfile; /* System filter test file */
321 extern uschar *filter_test_ufile; /* User filter test file */
322 extern uschar *filter_thisaddress; /* For address looping */
323 extern int finduser_retries; /* Retry count for getpwnam() */
324 extern uid_t fixed_never_users[]; /* Can't be overridden */
325 #ifdef WITH_OLD_DEMIME
326 extern uschar *found_extension; /* demime acl condition: file extension found */
327 #endif
328 extern uschar *freeze_tell; /* Message on (some) freezings */
329 extern uschar *fudged_queue_times; /* For use in test harness */
330
331 extern uschar *gecos_name; /* To be expanded when pattern matches */
332 extern uschar *gecos_pattern; /* Pattern to match */
333 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
334
335 extern int header_insert_maxlen; /* Max for inserting headers */
336 extern int header_maxsize; /* Max total length for header */
337 extern int header_line_maxsize; /* Max for an individual line */
338 extern header_name header_names[]; /* Table of header names */
339 extern int header_names_size; /* Number of entries */
340 extern BOOL header_rewritten; /* TRUE if header changed by router */
341 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
342 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
343 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
344 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
345 extern BOOL helo_verified; /* True if HELO verified */
346 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
347 extern uschar *hex_digits; /* Used in several places */
348 extern uschar *hold_domains; /* Hold up deliveries to these */
349 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
350 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
351 extern uschar *host_data; /* Obtained from lookup in ACL */
352 extern uschar *host_lookup; /* For which IP addresses are always looked up */
353 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
354 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
355 extern uschar *host_lookup_order; /* Order of host lookup types */
356 extern uschar *host_lookup_msg; /* Text for why it failed */
357 extern int host_number; /* For sharing spools */
358 extern uschar *host_number_string; /* For expanding */
359 extern uschar *host_reject_connection; /* Reject these hosts */
360 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
361 extern int hostlist_count; /* Number defined */
362 extern uschar *hosts_connection_nolog; /* Limits the logging option */
363 extern uschar *hosts_treat_as_local; /* For routing */
364
365 extern int ignore_bounce_errors_after; /* Keep them for this time. */
366 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
367 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
368 extern BOOL is_inetd; /* True for inetd calls */
369
370 extern int journal_fd; /* Fd for journal file */
371
372 extern int keep_malformed; /* Time to keep malformed messages */
373
374 extern uschar *eldap_dn; /* Where LDAP DNs are left */
375 extern int load_average; /* Most recently read load average */
376 extern BOOL local_error_message; /* True if handling one of these */
377 extern BOOL local_from_check; /* For adding Sender: (global value) */
378 extern uschar *local_from_prefix; /* Permitted prefixes */
379 extern uschar *local_from_suffix; /* Permitted suffixes */
380 extern uschar *local_interfaces; /* For forcing specific interfaces */
381 extern uschar *local_scan_data; /* Text returned by local_scan() */
382 extern optionlist local_scan_options[];/* Option list for local_scan() */
383 extern int local_scan_options_count; /* Size of the list */
384 extern int local_scan_timeout; /* Timeout for local_scan() */
385 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
386 extern gid_t local_user_gid; /* As it says; may be set in routers */
387 extern uid_t local_user_uid; /* As it says; may be set in routers */
388 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
389 extern int localpartlist_count; /* Number defined */
390 extern uschar *log_buffer; /* For constructing log entries */
391 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
392 extern uschar *log_file_path; /* If unset, use default */
393 extern bit_table log_options[]; /* Table of options */
394 extern int log_options_count; /* Size of table */
395 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
396 extern uschar *log_selector_string; /* As supplied in the config */
397 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
398 extern BOOL log_testing_mode; /* TRUE in various testing modes */
399 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
400 extern uschar *login_sender_address; /* The actual sender address */
401 extern lookup_info lookup_list[]; /* Vector of available lookups */
402 extern int lookup_list_count; /* Number of entries in the list */
403 extern int lookup_open_max; /* Max lookup files to cache */
404 extern uschar *lookup_value; /* Value looked up from file */
405
406 extern macro_item *macros; /* Configuration macros */
407 extern uschar *mailstore_basename; /* For mailstore deliveries */
408 #ifdef WITH_CONTENT_SCAN
409 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
410 #endif
411 extern int max_username_length; /* For systems with broken getpwnam() */
412 extern int message_age; /* In seconds */
413 extern uschar *message_body; /* Start of message body for filter */
414 extern uschar *message_body_end; /* End of message body for filter */
415 extern int message_body_size; /* Sic */
416 extern int message_body_visible; /* Amount visible in message_body */
417 extern int message_ended; /* State of message reading and how ended */
418 extern uschar *message_headers; /* When built */
419 extern uschar message_id_option[]; /* -E<message-id> for use as option */
420 extern uschar *message_id_external; /* External form of following */
421 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
422 extern uschar *message_id_text; /* Expanded to form message_id */
423 extern struct timeval message_id_tv; /* Time used to create last message_id */
424 extern int message_linecount; /* As it says */
425 extern BOOL message_logs; /* TRUE to write message logs */
426 extern int message_size; /* Size of message */
427 extern uschar *message_size_limit; /* As it says */
428 extern uschar message_subdir[]; /* Subdirectory for messages */
429 extern uschar *message_reference; /* Reference for error messages */
430
431 /* MIME ACL expandables */
432 #ifdef WITH_CONTENT_SCAN
433 extern int mime_anomaly_level;
434 extern uschar *mime_anomaly_text;
435 extern uschar *mime_boundary;
436 extern uschar *mime_charset;
437 extern uschar *mime_content_description;
438 extern uschar *mime_content_disposition;
439 extern uschar *mime_content_id;
440 extern unsigned int mime_content_size;
441 extern uschar *mime_content_transfer_encoding;
442 extern uschar *mime_content_type;
443 extern uschar *mime_decoded_filename;
444 extern uschar *mime_filename;
445 extern int mime_is_multipart;
446 extern int mime_is_coverletter;
447 extern int mime_is_rfc822;
448 extern int mime_part_count;
449 #endif
450
451 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
452
453 extern uid_t *never_users; /* List of uids never to be used */
454 #ifdef WITH_CONTENT_SCAN
455 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
456 #endif
457 extern BOOL no_multiline_responses; /* For broken clients */
458
459 extern optionlist optionlist_auths[]; /* These option lists are made */
460 extern int optionlist_auths_size; /* global so that readconf can */
461 extern optionlist optionlist_routers[]; /* see them for printing out */
462 extern int optionlist_routers_size; /* the options. */
463 extern optionlist optionlist_transports[];
464 extern int optionlist_transports_size;
465
466 extern uid_t original_euid; /* Original effective uid */
467 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
468 extern uschar *originator_login; /* Login of same */
469 extern uschar *originator_name; /* Full name of same */
470 extern uid_t originator_uid; /* Uid of ditto */
471 extern uschar *override_local_interfaces; /* Value of -oX argument */
472 extern uschar *override_pid_file_path; /* Value of -oP argument */
473
474 extern BOOL parse_allow_group; /* Allow group syntax */
475 extern BOOL parse_found_group; /* In the middle of a group */
476 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
477 extern uschar *pid_file_path; /* For writing daemon pids */
478 extern uschar *pipelining_advertise_hosts; /* As it says */
479 extern BOOL preserve_message_logs; /* Save msglog files */
480 extern uschar *primary_hostname; /* Primary name of this computer */
481 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
482 extern uschar process_info[]; /* For SIGUSR1 output */
483 extern uschar *process_log_path; /* Alternate path */
484 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
485 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
486 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
487 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
488
489 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
490 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
491 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
492 extern uschar *queue_domains; /* Queue these domains */
493 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
494 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
495 extern BOOL queue_run_force; /* TRUE to force during queue run */
496 extern BOOL queue_run_local; /* Local deliveries only in queue run */
497 extern BOOL queue_running; /* TRUE for queue running process and */
498 /* immediate children */
499 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
500 extern int queue_run_pipe; /* Pipe for synchronizing */
501 extern int queue_interval; /* Queue running interval */
502 extern BOOL queue_only; /* TRUE to disable immediate delivery */
503 extern int queue_only_load; /* Max load before auto-queue */
504 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
505 extern BOOL queue_only_override; /* Allow override from command line */
506 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
507 extern BOOL queue_run_in_order; /* As opposed to random */
508 extern int queue_run_max; /* Max queue runners */
509 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
510 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
511
512 extern unsigned int random_seed; /* Seed for random numbers */
513 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
514 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
515 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
516 extern uschar *raw_active_hostname; /* Pre-expansion */
517 extern uschar *raw_sender; /* Before rewriting */
518 extern uschar **raw_recipients; /* Before rewriting */
519 extern int raw_recipients_count;
520 extern int rcpt_count; /* Count of RCPT commands in a message */
521 extern int rcpt_fail_count; /* Those that got 5xx */
522 extern int rcpt_defer_count; /* Those that got 4xx */
523 extern gid_t real_gid; /* Real gid */
524 extern uid_t real_uid; /* Real user running program */
525 extern BOOL really_exim; /* FALSE in utilities */
526 extern BOOL receive_call_bombout; /* Flag for crashing log */
527 extern int receive_linecount; /* Mainly for BSMTP errors */
528 extern int receive_messagecount; /* Mainly for BSMTP errors */
529 extern int receive_timeout; /* For non-SMTP acceptance */
530 extern int received_count; /* Count of Received: headers */
531 extern uschar *received_for; /* For "for" field */
532 extern uschar *received_header_text; /* Definition of Received: header */
533 extern int received_headers_max; /* Max count of Received: headers */
534 extern int received_time; /* Time the message was received */
535 extern uschar *recipient_data; /* lookup data for recipients */
536 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
537 extern uschar *recipient_verify_failure; /* What went wrong */
538 extern BOOL recipients_discarded; /* By an ACL */
539 extern int recipients_list_max; /* Maximum number fitting in list */
540 extern int recipients_max; /* Max permitted */
541 extern int recipients_max_reject; /* If TRUE, reject whole message */
542 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
543 extern const pcre *regex_check_dns_names; /* For DNS name checking */
544 extern const pcre *regex_From; /* For recognizing "From_" lines */
545 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
546 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
547 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
548 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
549 #ifdef WITH_CONTENT_SCAN
550 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
551 #endif
552 extern int remote_delivery_count; /* Number of remote addresses */
553 extern int remote_max_parallel; /* Maximum parallel delivery */
554 extern uschar *remote_sort_domains; /* Remote domain sorting order */
555 extern retry_config *retries; /* Chain of retry config information */
556 extern int retry_data_expire; /* When to expire retry data */
557 extern int retry_interval_max; /* Absolute maximum */
558 extern int retry_maximum_timeout; /* The maximum timeout */
559 extern uschar *return_path; /* Return path for a message */
560 extern BOOL return_path_remove; /* Remove return-path headers */
561 extern int rewrite_existflags; /* Indicate which headers have rewrites */
562 extern uschar *rfc1413_hosts; /* RFC hosts */
563 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
564 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
565 extern uid_t root_uid; /* The uid for root */
566 extern router_info routers_available[];/* Vector of available routers */
567 extern router_instance *routers; /* Chain of instantiated routers */
568 extern router_instance router_defaults;/* Default values */
569 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
570 extern ip_address_item *running_interfaces; /* Host's running interfaces */
571 extern uschar *running_status; /* Flag string for testing */
572 extern int runrc; /* rc from ${run} */
573
574 extern uschar *search_error_message; /* Details of lookup problem */
575 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
576 extern uschar *self_hostname; /* Self host after routing->directors */
577 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
578 extern uschar *sender_address_data; /* address_data from sender verify */
579 extern BOOL sender_address_forced; /* Set by -f */
580 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
581 extern uschar *sender_data; /* lookup result for senders */
582 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
583 extern uschar *sender_fullhost; /* Sender host name + address */
584 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
585 extern uschar **sender_host_aliases; /* Points to list of alias names */
586 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
587 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
588 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
589 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
590 extern BOOL sender_local; /* TRUE for local senders */
591 extern uschar *sender_rate; /* Sender rate computed by ACL */
592 extern uschar *sender_rate_limit; /* Configured rate limit */
593 extern uschar *sender_rate_period; /* Configured smoothing period */
594 extern uschar *sender_rcvhost; /* Host data for Received: */
595 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
596 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
597 extern uschar *sender_verify_failure; /* What went wrong */
598 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
599 extern address_item *sender_verified_failed; /* The one that caused denial */
600 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
601 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
602 extern int smtp_accept_count; /* Count of connections */
603 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
604 extern int smtp_accept_max; /* Max SMTP connections */
605 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
606 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
607 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
608 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
609 extern int smtp_accept_queue; /* Queue after so many connections */
610 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
611 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
612 extern uschar *smtp_active_hostname; /* Hostname for this message */
613 extern BOOL smtp_authenticated; /* Sending client has authenticated */
614 extern uschar *smtp_banner; /* Banner string (to be expanded) */
615 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
616 extern uschar *smtp_command_argument; /* When running certain ACLs */
617 extern int smtp_connect_backlog; /* Max backlog permitted */
618 extern double smtp_delay_mail; /* Current MAIL delay */
619 extern double smtp_delay_rcpt; /* Current RCPT delay */
620 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
621 extern uschar *smtp_etrn_command; /* Command to run */
622 extern BOOL smtp_etrn_serialize; /* Only one at once */
623 extern FILE *smtp_in; /* Incoming SMTP input file */
624 extern int smtp_load_reserve; /* Only from reserved if load > this */
625 extern int smtp_mailcmd_count; /* Count of MAIL commands */
626 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
627 extern int smtp_max_unknown_commands; /* As it says */
628 extern FILE *smtp_out; /* Incoming SMTP output file */
629 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
630 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
631 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
632 extern uschar *smtp_read_error; /* Message for SMTP input error */
633 extern int smtp_receive_timeout; /* Applies to each received line */
634 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
635 extern BOOL smtp_return_error_details; /* TRUE to return full info */
636 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
637 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
638 extern int smtp_rlm_limit; /* Max delay */
639 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
640 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
641 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
642 extern int smtp_rlr_limit; /* Max delay */
643 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
644 extern BOOL smtp_use_pipelining; /* Global for passed connections */
645 extern BOOL smtp_use_size; /* Global for passed connections */
646
647 #ifdef WITH_CONTENT_SCAN
648 extern uschar *spamd_address; /* address for the spamassassin daemon */
649 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
650 extern uschar *spam_report; /* the spamd report (multiline) */
651 extern uschar *spam_score; /* the spam score (float) */
652 extern uschar *spam_score_int; /* spam_score * 10 (int) */
653 #endif
654 #ifdef EXPERIMENTAL_SPF
655 extern uschar *spf_header_comment; /* spf header comment */
656 extern uschar *spf_received; /* SPF-Received: header */
657 extern uschar *spf_result; /* spf result in string form */
658 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
659 #endif
660 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
661 extern uschar *spool_directory; /* Name of spool directory */
662 #ifdef EXPERIMENTAL_SRS
663 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
664 extern uschar *srs_db_address; /* SRS db address */
665 extern uschar *srs_db_key; /* SRS db key */
666 extern int srs_hashlength; /* SRS hash length */
667 extern int srs_hashmin; /* SRS minimum hash length */
668 extern int srs_maxage; /* SRS max age */
669 extern uschar *srs_orig_sender; /* SRS original sender */
670 extern uschar *srs_orig_recipient; /* SRS original recipient */
671 extern uschar *srs_recipient; /* SRS recipient */
672 extern uschar *srs_secrets; /* SRS secrets list */
673 extern uschar *srs_status; /* SRS staus */
674 extern BOOL srs_usehash; /* SRS use hash flag */
675 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
676 #endif
677 extern int string_datestamp_offset;/* After insertion by string_format */
678 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
679 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
680 extern uschar *submission_domain; /* Domain for submission mode */
681 extern BOOL submission_mode; /* Can be forced from ACL */
682 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
683 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
684 extern int syslog_facility; /* As defined by Syslog.h */
685 extern uschar *syslog_processname; /* 'ident' param to openlog() */
686 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
687 extern uschar *system_filter; /* Name of system filter file */
688
689 extern uschar *system_filter_directory_transport; /* Transports for the */
690 extern uschar *system_filter_file_transport; /* system filter */
691 extern uschar *system_filter_pipe_transport;
692 extern uschar *system_filter_reply_transport;
693
694 extern gid_t system_filter_gid; /* Gid for running system filter */
695 extern BOOL system_filter_gid_set; /* TRUE if gid set */
696 extern uid_t system_filter_uid; /* Uid for running system filter */
697 extern BOOL system_filter_uid_set; /* TRUE if uid set */
698 extern BOOL system_filtering; /* TRUE when running system filter */
699
700 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
701 extern int thismessage_size_limit; /* Limit for this message */
702 extern int timeout_frozen_after; /* Max time to keep frozen messages */
703 extern BOOL timestamps_utc; /* Use UTC for all times */
704 extern int transport_count; /* Count of bytes transported */
705 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
706 extern int transport_filter_timeout; /* Timeout for same */
707 extern BOOL transport_filter_timed_out; /* True if it did */
708
709 extern transport_info transports_available[]; /* Vector of available transports */
710 extern transport_instance *transports; /* Chain of instantiated transports */
711 extern transport_instance transport_defaults; /* Default values */
712
713 extern int transport_write_timeout;/* Set to time out individual writes */
714
715 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
716 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
717 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
718 extern tree_node *tree_unusable; /* Tree of unusable addresses */
719
720 extern BOOL trusted_caller; /* Caller is trusted */
721 extern gid_t *trusted_groups; /* List of trusted groups */
722 extern uid_t *trusted_users; /* List of trusted users */
723 extern uschar *timezone_string; /* Required timezone setting */
724
725 extern uschar *unknown_login; /* To use when login id unknown */
726 extern uschar *unknown_username; /* Ditto */
727 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
728 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
729 extern uschar *uucp_from_sender; /* For building the sender */
730
731 extern uschar *warn_message_file; /* Template for warning messages */
732 extern uschar *warnmsg_delay; /* String form of delay time */
733 extern uschar *warnmsg_recipients; /* Recipients of warning message */
734 extern BOOL write_rejectlog; /* Control of reject logging */
735
736 extern uschar *version_copyright; /* Copyright notice */
737 extern uschar *version_date; /* Date of compilation */
738 extern uschar *version_cnumber; /* Compile number */
739 extern uschar *version_string; /* Version string */
740
741 extern int warning_count; /* Delay warnings sent for this msg */
742
743 /* End of globals.h */