1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 /* Almost all the global variables are defined together in this one header, so
9 that they are easy to find. However, those that are visible during the
10 compilation of the local_scan() function are defined separately in the
11 local_scan.h header file. */
13 /* First put any specials that are required for some operating systems. */
19 /* We need to be careful about width of int and atomicity in signal handlers,
20 especially with the rise of 64-bit systems breaking older assumptions. But
21 sig_atomic_t comes from signal.h so can't go into mytypes.h without including
22 signal support in local_scan, which seems precipitous. */
23 typedef volatile sig_atomic_t SIGNAL_BOOL
;
25 /* Now things that are present only when configured. */
28 extern uschar
*opt_perl_startup
; /* Startup code for Perl interpreter */
29 extern BOOL opt_perl_at_start
; /* Start Perl interpreter at start */
30 extern BOOL opt_perl_started
; /* Set once interpreter started */
31 extern BOOL opt_perl_taintmode
; /* Enable taint mode in Perl */
35 extern tree_node
*dlobj_anchor
; /* Tree of dynamically-loaded objects */
39 extern uschar
*ibase_servers
;
43 extern uschar
*eldap_ca_cert_dir
; /* Directory with CA certificates */
44 extern uschar
*eldap_ca_cert_file
; /* CA certificate file */
45 extern uschar
*eldap_cert_file
; /* Certificate file */
46 extern uschar
*eldap_cert_key
; /* Certificate key file */
47 extern uschar
*eldap_cipher_suite
; /* Allowed cipher suite */
48 extern uschar
*eldap_default_servers
; /* List of default servers */
49 extern uschar
*eldap_require_cert
; /* Peer certificate checking strategy */
50 extern BOOL eldap_start_tls
; /* Use STARTTLS */
51 extern int eldap_version
; /* LDAP version */
55 extern uschar
*mysql_servers
; /* List of servers and connect info */
59 extern uschar
*oracle_servers
; /* List of servers and connect info */
63 extern uschar
*pgsql_servers
; /* List of servers and connect info */
67 extern uschar
*redis_servers
; /* List of servers and connect info */
71 extern int sqlite_lock_timeout
; /* Internal lock waiting timeout */
74 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
75 extern BOOL move_frozen_messages
; /* Get them out of the normal directory */
78 /* These variables are outside the #ifdef because it keeps the code less
79 cluttered in several places (e.g. during logging) if we can always refer to
80 them. Also, the tls_ variables are now always visible. */
83 client_conn_ctx active
; /* fd/socket when in a TLS session, and ptr to TLS context */
84 int bits
; /* bits used in TLS session */
85 BOOL certificate_verified
; /* Client certificate verified */
87 BOOL dane_verified
; /* ... via DANE */
88 int tlsa_usage
; /* TLSA record(s) usage */
90 uschar
*cipher
; /* Cipher used */
91 const uschar
*cipher_stdname
; /* Cipher used, RFC version */
93 BOOL on_connect
; /* For older MTAs that don't STARTTLS */
94 uschar
*on_connect_ports
; /* Ports always tls-on-connect */
95 void *ourcert
; /* Certificate we presented, binary */
96 void *peercert
; /* Certificate of peer, binary */
97 uschar
*peerdn
; /* DN from peer */
98 uschar
*sni
; /* Server Name Indication */
100 OCSP_NOT_REQ
=0, /* not requested */
101 OCSP_NOT_RESP
, /* no response to request */
102 OCSP_VFY_NOT_TRIED
, /* response not verified */
103 OCSP_FAILED
, /* verify failed */
104 OCSP_VFIED
/* verified */
105 } ocsp
; /* Stapled OCSP status */
107 extern tls_support tls_in
;
108 extern tls_support tls_out
;
111 extern BOOL gnutls_compat_mode
; /* Less security, more compatibility */
112 extern BOOL gnutls_allow_auto_pkcs11
; /* Let GnuTLS autoload PKCS11 modules */
113 extern uschar
*openssl_options
; /* OpenSSL compatibility options */
114 extern const pcre
*regex_STARTTLS
; /* For recognizing STARTTLS settings */
115 extern uschar
*tls_certificate
; /* Certificate file */
116 extern uschar
*tls_channelbinding_b64
; /* string of base64 channel binding */
117 extern uschar
*tls_crl
; /* CRL File */
118 extern int tls_dh_max_bits
; /* don't accept higher lib suggestions */
119 extern uschar
*tls_dhparam
; /* DH param file */
120 extern uschar
*tls_eccurve
; /* EC curve */
121 # ifndef DISABLE_OCSP
122 extern uschar
*tls_ocsp_file
; /* OCSP stapling proof file */
124 extern uschar
*tls_privatekey
; /* Private key file */
125 extern BOOL tls_remember_esmtp
; /* For YAEB */
126 extern uschar
*tls_require_ciphers
; /* So some can be avoided */
127 extern uschar
*tls_try_verify_hosts
; /* Optional client verification */
128 extern uschar
*tls_verify_certificates
;/* Path for certificates to check */
129 extern uschar
*tls_verify_hosts
; /* Mandatory client verification */
131 extern uschar
*tls_advertise_hosts
; /* host for which TLS is advertised */
133 extern uschar
*dsn_envid
; /* DSN envid string */
134 extern int dsn_ret
; /* DSN ret type*/
135 extern const pcre
*regex_DSN
; /* For recognizing DSN settings */
136 extern uschar
*dsn_advertise_hosts
; /* host for which TLS is advertised */
138 /* Input-reading functions for messages, so we can use special ones for
141 extern int (*lwr_receive_getc
)(unsigned);
142 extern uschar
* (*lwr_receive_getbuf
)(unsigned *);
143 extern int (*lwr_receive_ungetc
)(int);
144 extern int (*receive_getc
)(unsigned);
145 extern uschar
* (*receive_getbuf
)(unsigned *);
146 extern void (*receive_get_cache
)(void);
147 extern int (*receive_ungetc
)(int);
148 extern int (*receive_feof
)(void);
149 extern int (*receive_ferror
)(void);
150 extern BOOL (*receive_smtp_buffered
)(void);
153 /* For clearing, saving, restoring address expansion variables. We have to have
154 the size of this vector set explicitly, because it is referenced from more than
157 extern const uschar
**address_expansions
[ADDRESS_EXPANSIONS_COUNT
];
159 /* Flags for which we don't need an address ever so can use a bitfield */
161 extern struct global_flags
{
162 BOOL acl_temp_details
:1; /* TRUE to give details for 4xx error */
163 BOOL active_local_from_check
:1; /* For adding Sender: (switchable) */
164 BOOL active_local_sender_retain
:1; /* For keeping Sender: (switchable) */
165 BOOL address_test_mode
:1; /* True for -bt */
166 BOOL admin_user
:1; /* True if caller can do admin */
167 BOOL allow_auth_unadvertised
:1; /* As it says */
168 BOOL allow_unqualified_recipient
:1; /* For local messages */ /* As it says */
169 BOOL allow_unqualified_sender
:1; /* Reset for SMTP */ /* Ditto */
170 BOOL authentication_local
:1; /* TRUE if non-smtp (implicit authentication) */
172 BOOL background_daemon
:1; /* Set FALSE to keep in foreground */
174 BOOL chunking_offered
:1;
175 BOOL config_changed
:1; /* True if -C used */
176 BOOL continue_more
:1; /* Flag more addresses waiting */
178 BOOL daemon_listen
:1; /* True if listening required */
179 BOOL debug_daemon
:1; /* Debug the daemon process only */
180 BOOL deliver_firsttime
:1; /* True for first delivery attempt */
181 BOOL deliver_force
:1; /* TRUE if delivery was forced */
182 BOOL deliver_freeze
:1; /* TRUE if delivery is frozen */
183 BOOL deliver_force_thaw
:1; /* TRUE to force thaw in queue run */
184 BOOL deliver_manual_thaw
:1; /* TRUE if manually thawed */
185 BOOL deliver_selectstring_regex
:1; /* String is regex */
186 BOOL deliver_selectstring_sender_regex
:1; /* String is regex */
187 BOOL disable_callout_flush
:1; /* Don't flush before callouts */
188 BOOL disable_delay_flush
:1; /* Don't flush before "delay" in ACL */
189 BOOL disable_logging
:1; /* Disables log writing when TRUE */
191 BOOL dkim_disable_verify
:1; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
193 #ifdef EXPERIMENTAL_DMARC
194 BOOL dmarc_has_been_checked
:1; /* Global variable to check if test has been called yet */
195 BOOL dmarc_disable_verify
:1; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */
196 BOOL dmarc_enable_forensic
:1; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */
198 BOOL dont_deliver
:1; /* TRUE for -N option */
199 BOOL dot_ends
:1; /* TRUE if "." ends non-SMTP input */
201 BOOL enable_dollar_recipients
:1; /* Make $recipients available */
202 BOOL expand_string_forcedfail
:1; /* TRUE if failure was "expected" */
204 BOOL filter_running
:1; /* TRUE while running a filter */
206 BOOL header_rewritten
:1; /* TRUE if header changed by router */
207 BOOL helo_verified
:1; /* True if HELO verified */
208 BOOL helo_verify_failed
:1; /* True if attempt failed */
209 BOOL host_checking_callout
:1; /* TRUE if real callout wanted */
210 BOOL host_find_failed_syntax
:1; /* DNS syntax check failure */
212 BOOL inetd_wait_mode
:1; /* Whether running in inetd wait mode */
213 BOOL is_inetd
:1; /* True for inetd calls */
215 BOOL local_error_message
:1; /* True if handling one of these */
216 BOOL log_testing_mode
:1; /* TRUE in various testing modes */
218 #ifdef WITH_CONTENT_SCAN
219 BOOL no_mbox_unspool
:1; /* don't unlink files in /scan directory */
221 BOOL no_multiline_responses
:1; /* For broken clients */
223 BOOL parse_allow_group
:1; /* Allow group syntax */
224 BOOL parse_found_group
:1; /* In the middle of a group */
225 BOOL pipelining_enable
:1; /* As it says */
226 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
227 BOOL proxy_session_failed
:1; /* TRUE if required proxy negotiation failed */
230 BOOL queue_2stage
:1; /* Run queue in 2-stage manner */
231 BOOL queue_only_policy
:1; /* ACL or local_scan wants queue_only */
232 BOOL queue_run_first_delivery
:1; /* If TRUE, first deliveries only */
233 BOOL queue_run_force
:1; /* TRUE to force during queue run */
234 BOOL queue_run_local
:1; /* Local deliveries only in queue run */
235 BOOL queue_running
:1; /* TRUE for queue running process and */
236 BOOL queue_smtp
:1; /* Disable all immediate SMTP (-odqs)*/
238 BOOL really_exim
:1; /* FALSE in utilities */
239 BOOL receive_call_bombout
:1; /* Flag for crashing log */
240 BOOL recipients_discarded
:1; /* By an ACL */
241 BOOL running_in_test_harness
:1; /*TRUE when running_status is patched */
243 BOOL search_find_defer
:1; /* Set TRUE if lookup deferred */
244 BOOL sender_address_forced
:1; /* Set by -f */
245 BOOL sender_host_notsocket
:1; /* Set for -bs and -bS */
246 BOOL sender_host_unknown
:1; /* TRUE for -bs and -bS except inetd */
247 BOOL sender_local
:1; /* TRUE for local senders */
248 BOOL sender_name_forced
:1; /* Set by -F */
249 BOOL sender_set_untrusted
:1; /* Sender set by untrusted caller */
250 BOOL smtp_authenticated
:1; /* Sending client has authenticated */
251 #ifdef EXPERIMENTAL_PIPE_CONNECT
252 BOOL smtp_in_early_pipe_advertised
:1; /* server advertised PIPE_CONNECT */
253 BOOL smtp_in_early_pipe_no_auth
:1; /* too many authenticator names */
254 BOOL smtp_in_early_pipe_used
:1; /* client did send early data */
256 BOOL smtp_in_pipelining_advertised
:1; /* server advertised PIPELINING */
257 BOOL smtp_in_pipelining_used
:1; /* server noted client using PIPELINING */
258 BOOL spool_file_wireformat
:1; /* current -D file has CRLF rather than NL */
259 BOOL submission_mode
:1; /* Can be forced from ACL */
260 BOOL suppress_local_fixups
:1; /* Can be forced from ACL */
261 BOOL suppress_local_fixups_default
:1; /* former is reset to this; override with -G */
262 BOOL synchronous_delivery
:1; /* TRUE if -odi is set */
263 BOOL system_filtering
:1; /* TRUE when running system filter */
265 BOOL tcp_fastopen_ok
:1; /* appears to be supported by kernel */
266 BOOL tcp_in_fastopen
:1; /* conn usefully used fastopen */
267 BOOL tcp_in_fastopen_data
:1; /* fastopen carried data */
268 BOOL tcp_in_fastopen_logged
:1; /* one-time logging */
269 BOOL tcp_out_fastopen_logged
:1; /* one-time logging */
270 BOOL timestamps_utc
:1; /* Use UTC for all times */
271 BOOL transport_filter_timed_out
:1; /* True if it did */
272 BOOL trusted_caller
:1; /* Caller is trusted */
273 BOOL trusted_config
:1; /* Configuration file is trusted */
277 /* General global variables */
279 extern BOOL accept_8bitmime
; /* Allow *BITMIME incoming */
280 extern uschar
*add_environment
; /* List of environment variables to add */
281 extern header_line
*acl_added_headers
; /* Headers added by an ACL */
282 extern tree_node
*acl_anchor
; /* Tree of named ACLs */
283 extern uschar
*acl_arg
[9]; /* Argument to ACL call */
284 extern int acl_narg
; /* Number of arguments to ACL call */
285 extern int acl_level
; /* Nesting depth and debug indent */
286 extern uschar
*acl_not_smtp
; /* ACL run for non-SMTP messages */
287 #ifdef WITH_CONTENT_SCAN
288 extern uschar
*acl_not_smtp_mime
; /* For MIME parts of ditto */
290 extern uschar
*acl_not_smtp_start
; /* ACL run at the beginning of a non-SMTP session */
291 extern uschar
*acl_removed_headers
; /* Headers deleted by an ACL */
292 extern uschar
*acl_smtp_auth
; /* ACL run for AUTH */
293 extern uschar
*acl_smtp_connect
; /* ACL run on SMTP connection */
294 extern uschar
*acl_smtp_data
; /* ACL run after DATA received */
296 extern uschar
*acl_smtp_data_prdr
; /* ACL run after DATA received if in PRDR mode*/
297 const extern pcre
*regex_PRDR
; /* For recognizing PRDR settings */
300 extern uschar
*acl_smtp_dkim
; /* ACL run for DKIM signatures / domains */
302 extern uschar
*acl_smtp_etrn
; /* ACL run for ETRN */
303 extern uschar
*acl_smtp_expn
; /* ACL run for EXPN */
304 extern uschar
*acl_smtp_helo
; /* ACL run for HELO/EHLO */
305 extern uschar
*acl_smtp_mail
; /* ACL run for MAIL */
306 extern uschar
*acl_smtp_mailauth
; /* ACL run for MAIL AUTH */
307 #ifdef WITH_CONTENT_SCAN
308 extern uschar
*acl_smtp_mime
; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
310 extern uschar
*acl_smtp_notquit
; /* ACL run for disconnects */
311 extern uschar
*acl_smtp_predata
; /* ACL run for DATA command */
312 extern uschar
*acl_smtp_quit
; /* ACL run for QUIT */
313 extern uschar
*acl_smtp_rcpt
; /* ACL run for RCPT */
314 extern uschar
*acl_smtp_starttls
; /* ACL run for STARTTLS */
315 extern uschar
*acl_smtp_vrfy
; /* ACL run for VRFY */
316 extern tree_node
*acl_var_c
; /* ACL connection variables */
317 extern tree_node
*acl_var_m
; /* ACL message variables */
318 extern uschar
*acl_verify_message
; /* User message for verify failure */
319 extern string_item
*acl_warn_logged
; /* Logged lines */
320 extern uschar
*acl_wherecodes
[]; /* Response codes for ACL fails */
321 extern uschar
*acl_wherenames
[]; /* Names for messages */
322 extern address_item
*addr_duplicate
; /* Duplicate address list */
323 extern address_item address_defaults
; /* Default data for address item */
324 extern uschar
*address_file
; /* Name of file when delivering to one */
325 extern uschar
*address_pipe
; /* Pipe command when delivering to one */
326 extern tree_node
*addresslist_anchor
; /* Tree of defined address lists */
327 extern int addresslist_count
; /* Number defined */
328 extern gid_t
*admin_groups
; /* List of admin groups */
329 extern BOOL allow_domain_literals
; /* As it says */
330 extern BOOL allow_mx_to_ip
; /* Allow MX records to -> ip address */
331 #ifdef EXPERIMENTAL_ARC
332 struct arc_set
*arc_received
; /* highest ARC instance evaluation struct */
333 extern int arc_received_instance
; /* highest ARC instance number in headers */
334 extern int arc_oldest_pass
; /* lowest passing instance number in headers */
335 extern const uschar
*arc_state
; /* verification state */
336 extern const uschar
*arc_state_reason
;
338 extern BOOL allow_utf8_domains
; /* For experimenting */
339 extern uschar
*authenticated_fail_id
; /* ID that failed authentication */
340 extern uschar
*authenticated_id
; /* ID that was authenticated */
341 extern uschar
*authenticated_sender
; /* From AUTH on MAIL */
342 extern BOOL authentication_failed
; /* TRUE if AUTH was tried and failed */
343 extern uschar
*auth_advertise_hosts
; /* Only advertise to these */
344 extern auth_info auths_available
[]; /* Vector of available auth mechanisms */
345 extern auth_instance
*auths
; /* Chain of instantiated auths */
346 extern auth_instance auth_defaults
; /* Default values */
347 extern uschar
*auth_defer_msg
; /* Error message for log */
348 extern uschar
*auth_defer_user_msg
; /* Error message for user */
349 extern uschar
*auth_vars
[]; /* $authn variables */
350 extern int auto_thaw
; /* Auto-thaw interval */
351 #ifdef WITH_CONTENT_SCAN
352 extern int av_failed
; /* TRUE if the AV process failed */
353 extern uschar
*av_scanner
; /* AntiVirus scanner to use for the malware condition */
356 extern uschar
*base62_chars
; /* Table of base-62 characters */
357 extern uschar
*bi_command
; /* Command for -bi option */
358 extern uschar
*big_buffer
; /* Used for various temp things */
359 extern int big_buffer_size
; /* Current size (can expand) */
360 #ifdef EXPERIMENTAL_BRIGHTMAIL
361 extern uschar
*bmi_alt_location
; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
362 extern uschar
*bmi_base64_tracker_verdict
; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
363 extern uschar
*bmi_base64_verdict
; /* expansion variable with base-64 encoded verdict string (available during routing) */
364 extern uschar
*bmi_config_file
; /* Brightmail config file */
365 extern int bmi_deliver
; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
366 extern int bmi_run
; /* Flag that determines if message should be run through Brightmail server */
367 extern uschar
*bmi_verdicts
; /* BASE64-encoded verdicts with recipient lists */
369 extern int bsmtp_transaction_linecount
; /* Start of last transaction */
370 extern int body_8bitmime
; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
371 extern uschar
*bounce_message_file
; /* Template file */
372 extern uschar
*bounce_message_text
; /* One-liner */
373 extern uschar
*bounce_recipient
; /* When writing an errmsg */
374 extern BOOL bounce_return_body
; /* Include body in returned message */
375 extern int bounce_return_linesize_limit
; /* Max line length in return */
376 extern BOOL bounce_return_message
; /* Include message in bounce */
377 extern int bounce_return_size_limit
; /* Max amount to return */
378 extern uschar
*bounce_sender_authentication
; /* AUTH address for bounces */
380 extern uschar
*callout_address
; /* Address used for a malware/spamd/verify etc. callout */
381 extern int callout_cache_domain_positive_expire
; /* Time for positive domain callout cache records to expire */
382 extern int callout_cache_domain_negative_expire
; /* Time for negative domain callout cache records to expire */
383 extern int callout_cache_positive_expire
; /* Time for positive callout cache records to expire */
384 extern int callout_cache_negative_expire
; /* Time for negative callout cache records to expire */
385 extern uschar
*callout_random_local_part
; /* Local part to be used to check if server called will accept any local part */
386 extern uschar
*check_dns_names_pattern
;/* Regex for syntax check */
387 extern int check_log_inodes
; /* Minimum for message acceptance */
388 extern int_eximarith_t check_log_space
; /* Minimum for message acceptance */
389 extern BOOL check_rfc2047_length
; /* Check RFC 2047 encoded string length */
390 extern int check_spool_inodes
; /* Minimum for message acceptance */
391 extern int_eximarith_t check_spool_space
; /* Minimum for message acceptance */
392 extern uschar
*chunking_advertise_hosts
; /* RFC 3030 CHUNKING */
393 extern unsigned chunking_datasize
;
394 extern unsigned chunking_data_left
;
395 extern chunking_state_t chunking_state
;
396 extern uschar
*client_authenticator
; /* Authenticator name used for smtp delivery */
397 extern uschar
*client_authenticated_id
; /* "login" name used for SMTP AUTH */
398 extern uschar
*client_authenticated_sender
; /* AUTH option to SMTP MAIL FROM (not yet used) */
399 extern int clmacro_count
; /* Number of command line macros */
400 extern uschar
*clmacros
[]; /* Copy of them, for re-exec */
401 extern BOOL commandline_checks_require_admin
; /* belt and braces for insecure setups */
402 extern int connection_max_messages
;/* Max down one SMTP connection */
403 extern FILE *config_file
; /* Configuration file */
404 extern const uschar
*config_filename
; /* Configuration file name */
405 extern gid_t config_gid
; /* Additional group owner */
406 extern int config_lineno
; /* Line number */
407 extern uschar
*config_main_filelist
; /* List of possible config files */
408 extern uschar
*config_main_filename
; /* File name actually used */
409 extern uschar
*config_main_directory
; /* Directory where the main config file was found */
410 extern uid_t config_uid
; /* Additional owner */
411 extern uschar
*continue_proxy_cipher
; /* TLS cipher for proxied continued delivery */
412 extern uschar
*continue_hostname
; /* Host for continued delivery */
413 extern uschar
*continue_host_address
; /* IP address for ditto */
414 extern int continue_sequence
; /* Sequence num for continued delivery */
415 extern uschar
*continue_transport
; /* Transport for continued delivery */
417 extern uschar
*csa_status
; /* Client SMTP Authorization result */
420 unsigned callout_hold_only
:1; /* Conn is only for verify callout */
421 unsigned delivery
:1; /* When to attempt */
422 unsigned defer_pass
:1; /* Pass 4xx to caller rather than spooling */
423 unsigned is_tls
:1; /* Conn has TLS active */
424 client_conn_ctx cctx
; /* Open connection */
425 int nrcpt
; /* Count of addresses */
426 uschar
* transport
; /* Name of transport */
427 uschar
* interface
; /* (address of) */
428 uschar
* snd_ip
; /* sending_ip_address */
429 int snd_port
; /* sending_port */
430 unsigned peer_options
; /* smtp_peer_options */
431 host_item host
; /* Host used */
432 address_item addr
; /* (Chain of) addresses */
434 extern cut_t cutthrough
; /* Deliver-concurrently */
436 extern uschar
*daemon_smtp_port
; /* Can be a list of ports */
437 extern int daemon_startup_retries
; /* Number of times to retry */
438 extern int daemon_startup_sleep
; /* Sleep between retries */
440 #ifdef EXPERIMENTAL_DCC
441 extern BOOL dcc_direct_add_header
; /* directly add header */
442 extern uschar
*dcc_header
; /* dcc header */
443 extern uschar
*dcc_result
; /* dcc result */
444 extern uschar
*dccifd_address
; /* address of the dccifd daemon */
445 extern uschar
*dccifd_options
; /* options for the dccifd daemon */
448 extern int debug_fd
; /* The fd for debug_file */
449 extern FILE *debug_file
; /* Where to write debugging info */
450 extern int debug_notall
[]; /* Debug options excluded from +all */
451 extern bit_table debug_options
[]; /* Table of debug options */
452 extern int debug_options_count
; /* Size of table */
453 extern BOOL debug_store
; /* Do extra checks on store_reset */
454 extern int delay_warning
[]; /* Times between warnings */
455 extern uschar
*delay_warning_condition
; /* Condition string for warnings */
456 extern BOOL delivery_date_remove
; /* Remove delivery-date headers */
458 extern uschar
*deliver_address_data
; /* Arbitrary data for an address */
459 extern int deliver_datafile
; /* FD for data part of message */
460 extern const uschar
*deliver_domain
; /* The local domain for delivery */
461 extern uschar
*deliver_domain_data
; /* From domain lookup */
462 extern const uschar
*deliver_domain_orig
; /* The original local domain for delivery */
463 extern const uschar
*deliver_domain_parent
; /* The parent domain for delivery */
464 extern BOOL deliver_drop_privilege
; /* TRUE for unprivileged delivery */
465 extern time_t deliver_frozen_at
; /* Time of freezing */
466 extern uschar
*deliver_home
; /* Home directory for pipes */
467 extern const uschar
*deliver_host
; /* (First) host for routed local deliveries */
468 /* Remote host for filter */
469 extern const uschar
*deliver_host_address
; /* Address for remote delivery filter */
470 extern int deliver_host_port
; /* Address for remote delivery filter */
471 extern uschar
*deliver_in_buffer
; /* Buffer for copying file */
472 extern ino_t deliver_inode
; /* Inode for appendfile */
473 extern uschar
*deliver_localpart
; /* The local part for delivery */
474 extern uschar
*deliver_localpart_data
; /* From local part lookup */
475 extern uschar
*deliver_localpart_orig
; /* The original local part for delivery */
476 extern uschar
*deliver_localpart_parent
; /* The parent local part for delivery */
477 extern uschar
*deliver_localpart_prefix
; /* The stripped prefix, if any */
478 extern uschar
*deliver_localpart_suffix
; /* The stripped suffix, if any */
479 extern uschar
*deliver_out_buffer
; /* Buffer for copying file */
480 extern int deliver_queue_load_max
; /* Different value for queue running */
481 extern address_item
*deliver_recipients
; /* Current set of addresses */
482 extern uschar
*deliver_selectstring
; /* For selecting by recipient */
483 extern uschar
*deliver_selectstring_sender
; /* For selecting by sender */
484 #ifdef ENABLE_DISABLE_FSYNC
485 extern BOOL disable_fsync
; /* Not for normal use */
487 extern BOOL disable_ipv6
; /* Don't do any IPv6 things */
490 extern unsigned dkim_collect_input
; /* Runtime count of dkim signtures; tracks whether SMTP input is fed to DKIM validation */
491 extern uschar
*dkim_cur_signer
; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
492 extern int dkim_key_length
; /* Expansion variable, length of signing key in bits */
493 extern void *dkim_signatures
; /* Actually a (pdkim_signature *) but most files do not need to know */
494 extern uschar
*dkim_signers
; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
495 extern uschar
*dkim_signing_domain
; /* Expansion variable, domain used for signing a message. */
496 extern uschar
*dkim_signing_selector
; /* Expansion variable, selector used for signing a message. */
497 extern uschar
*dkim_verify_overall
; /* First successful domain verified, or null */
498 extern uschar
*dkim_verify_signers
; /* Colon-separated list of domains for each of which we call the DKIM ACL */
499 extern uschar
*dkim_verify_status
; /* result for this signature */
500 extern uschar
*dkim_verify_reason
; /* result for this signature */
502 #ifdef EXPERIMENTAL_DMARC
503 extern uschar
*dmarc_domain_policy
; /* Expansion for declared policy of used domain */
504 extern uschar
*dmarc_forensic_sender
; /* Set sender address for forensic reports */
505 extern uschar
*dmarc_history_file
; /* Expansion variable, file to store dmarc results */
506 extern uschar
*dmarc_status
; /* Expansion variable, one word value */
507 extern uschar
*dmarc_status_text
; /* Expansion variable, human readable value */
508 extern uschar
*dmarc_tld_file
; /* Mozilla TLDs text file */
509 extern uschar
*dmarc_used_domain
; /* Expansion variable, domain libopendmarc chose for DMARC policy lookup */
512 extern uschar
*dns_again_means_nonexist
; /* Domains that are badly set up */
513 extern int dns_csa_search_limit
; /* How deep to search for CSA SRV records */
514 extern BOOL dns_csa_use_reverse
; /* Check CSA in reverse DNS? (non-standard) */
515 extern int dns_cname_loops
; /* Follow CNAMEs returned by resolver to this depth */
516 extern uschar
*dns_ipv4_lookup
; /* For these domains, don't look for AAAA (or A6) */
518 extern int dns_dane_ok
; /* Ok to use DANE when checking TLS authenticity */
520 extern int dns_retrans
; /* Retransmission time setting */
521 extern int dns_retry
; /* Number of retries */
522 extern int dns_dnssec_ok
; /* When constructing DNS query, set DO flag */
523 extern uschar
*dns_trust_aa
; /* DNSSEC trust AA as AD */
524 extern int dns_use_edns0
; /* Coerce EDNS0 support on/off in resolver. */
525 extern uschar
*dnslist_domain
; /* DNS (black) list domain */
526 extern uschar
*dnslist_matched
; /* DNS (black) list matched key */
527 extern uschar
*dnslist_text
; /* DNS (black) list text message */
528 extern uschar
*dnslist_value
; /* DNS (black) list IP address */
529 extern tree_node
*domainlist_anchor
; /* Tree of defined domain lists */
530 extern int domainlist_count
; /* Number defined */
532 /* This option is now a no-opt, retained for compatibility */
533 extern BOOL drop_cr
; /* For broken local MUAs */
535 extern uschar
*dsn_from
; /* From: string for DSNs */
537 extern BOOL envelope_to_remove
; /* Remove envelope_to_headers */
538 extern int errno_quota
; /* Quota errno in this OS */
539 extern int error_handling
; /* Error handling style */
540 extern uschar
*errors_copy
; /* For taking copies of errors */
541 extern uschar
*errors_reply_to
; /* Reply-to for error messages */
542 extern int errors_sender_rc
; /* Return after message to sender*/
544 #ifndef DISABLE_EVENT
545 extern uschar
*event_action
; /* expansion for delivery events */
546 extern uschar
*event_data
; /* event data */
547 extern int event_defer_errno
; /* error number set when a remote delivery is deferred with a host error */
548 extern const uschar
*event_name
; /* event classification */
551 extern gid_t exim_gid
; /* To be used with exim_uid */
552 extern BOOL exim_gid_set
; /* TRUE if exim_gid set */
553 extern uschar
*exim_path
; /* Path to exec exim */
554 extern const uschar
*exim_sieve_extension_list
[]; /* list of sieve extensions */
555 extern uid_t exim_uid
; /* Non-root uid for exim */
556 extern BOOL exim_uid_set
; /* TRUE if exim_uid set */
557 extern int expand_level
; /* Nesting depth; indent for debug */
558 extern int expand_forbid
; /* RDO flags for forbidding things */
559 extern int expand_nlength
[]; /* Lengths of numbered strings */
560 extern int expand_nmax
; /* Max numerical value */
561 extern uschar
*expand_nstring
[]; /* Numbered strings */
562 extern BOOL extract_addresses_remove_arguments
; /* Controls -t behaviour */
563 extern uschar
*extra_local_interfaces
; /* Local, non-listen interfaces */
565 extern int fake_response
; /* Fake FAIL or DEFER response to data */
566 extern uschar
*fake_response_text
; /* User defined message for the above. Default is in globals.c. */
567 extern int filter_n
[FILTER_VARIABLE_COUNT
]; /* filter variables */
568 extern int filter_sn
[FILTER_VARIABLE_COUNT
]; /* variables set by system filter */
569 extern int filter_test
; /* Filter test type */
570 extern uschar
*filter_test_sfile
; /* System filter test file */
571 extern uschar
*filter_test_ufile
; /* User filter test file */
572 extern uschar
*filter_thisaddress
; /* For address looping */
573 extern int finduser_retries
; /* Retry count for getpwnam() */
574 extern uid_t fixed_never_users
[]; /* Can't be overridden */
575 extern uschar
*freeze_tell
; /* Message on (some) freezings */
576 extern uschar
*freeze_tell_config
; /* The configured setting */
577 extern uschar
*fudged_queue_times
; /* For use in test harness */
579 extern uschar
*gecos_name
; /* To be expanded when pattern matches */
580 extern uschar
*gecos_pattern
; /* Pattern to match */
581 extern rewrite_rule
*global_rewrite_rules
; /* Chain of rewriting rules */
583 extern volatile sig_atomic_t had_command_timeout
; /* Alarm sighandler called */
584 extern volatile sig_atomic_t had_command_sigterm
; /* TERM sighandler called */
585 extern volatile sig_atomic_t had_data_timeout
; /* Alarm sighandler called */
586 extern volatile sig_atomic_t had_data_sigint
; /* TERM/INT sighandler called */
587 extern int header_insert_maxlen
; /* Max for inserting headers */
588 extern int header_maxsize
; /* Max total length for header */
589 extern int header_line_maxsize
; /* Max for an individual line */
590 extern header_name header_names
[]; /* Table of header names */
591 extern int header_names_size
; /* Number of entries */
592 extern uschar
*helo_accept_junk_hosts
; /* Allowed to use junk arg */
593 extern uschar
*helo_allow_chars
; /* Rogue chars to allow in HELO/EHLO */
594 extern uschar
*helo_lookup_domains
; /* If these given, lookup host name */
595 extern uschar
*helo_try_verify_hosts
; /* Soft check HELO argument for these */
596 extern uschar
*helo_verify_hosts
; /* Hard check HELO argument for these */
597 extern const uschar
*hex_digits
; /* Used in several places */
598 extern uschar
*hold_domains
; /* Hold up deliveries to these */
599 extern uschar
*host_data
; /* Obtained from lookup in ACL */
600 extern uschar
*host_lookup
; /* For which IP addresses are always looked up */
601 extern BOOL host_lookup_deferred
; /* TRUE if lookup deferred */
602 extern BOOL host_lookup_failed
; /* TRUE if lookup failed */
603 extern uschar
*host_lookup_order
; /* Order of host lookup types */
604 extern uschar
*host_lookup_msg
; /* Text for why it failed */
605 extern int host_number
; /* For sharing spools */
606 extern uschar
*host_number_string
; /* For expanding */
607 extern uschar
*host_reject_connection
; /* Reject these hosts */
608 extern tree_node
*hostlist_anchor
; /* Tree of defined host lists */
609 extern int hostlist_count
; /* Number defined */
610 extern uschar
*hosts_connection_nolog
; /* Limits the logging option */
611 extern uschar
*hosts_treat_as_local
; /* For routing */
613 extern int ignore_bounce_errors_after
; /* Keep them for this time. */
614 extern BOOL ignore_fromline_local
; /* Local SMTP ignore fromline */
615 extern uschar
*ignore_fromline_hosts
; /* Hosts permitted to send "From " */
616 extern int inetd_wait_timeout
; /* Timeout for inetd wait mode */
617 extern uschar
*initial_cwd
; /* The directory we where in at startup */
618 extern uschar
*iterate_item
; /* Item from iterate list */
620 extern int journal_fd
; /* Fd for journal file */
622 extern uschar
*keep_environment
; /* Whitelist for environment variables */
623 extern int keep_malformed
; /* Time to keep malformed messages */
625 extern uschar
*eldap_dn
; /* Where LDAP DNs are left */
626 extern int load_average
; /* Most recently read load average */
627 extern BOOL local_from_check
; /* For adding Sender: (global value) */
628 extern uschar
*local_from_prefix
; /* Permitted prefixes */
629 extern uschar
*local_from_suffix
; /* Permitted suffixes */
630 extern uschar
*local_interfaces
; /* For forcing specific interfaces */
631 #ifdef HAVE_LOCAL_SCAN
632 extern uschar
*local_scan_data
; /* Text returned by local_scan() */
633 extern optionlist local_scan_options
[];/* Option list for local_scan() */
634 extern int local_scan_options_count
; /* Size of the list */
635 extern int local_scan_timeout
; /* Timeout for local_scan() */
637 extern BOOL local_sender_retain
; /* Retain Sender: (with no From: check) */
638 extern gid_t local_user_gid
; /* As it says; may be set in routers */
639 extern uid_t local_user_uid
; /* As it says; may be set in routers */
640 extern tree_node
*localpartlist_anchor
;/* Tree of defined localpart lists */
641 extern int localpartlist_count
; /* Number defined */
642 extern uschar
*log_buffer
; /* For constructing log entries */
643 extern int log_default
[]; /* Initialization list for log_selector */
644 extern uschar
*log_file_path
; /* If unset, use default */
645 extern int log_notall
[]; /* Log options excluded from +all */
646 extern bit_table log_options
[]; /* Table of options */
647 extern int log_options_count
; /* Size of table */
648 extern int log_reject_target
; /* Target log for ACL rejections */
649 extern unsigned int log_selector
[]; /* Bit map of logging options */
650 extern uschar
*log_selector_string
; /* As supplied in the config */
651 extern FILE *log_stderr
; /* Copy of stderr for log use, or NULL */
652 extern BOOL log_timezone
; /* TRUE to include the timezone in log lines */
653 extern uschar
*login_sender_address
; /* The actual sender address */
654 extern lookup_info
**lookup_list
; /* Array of pointers to available lookups */
655 extern int lookup_list_count
; /* Number of entries in the list */
656 extern uschar
*lookup_dnssec_authenticated
; /* AD status of dns lookup */
657 extern int lookup_open_max
; /* Max lookup files to cache */
658 extern uschar
*lookup_value
; /* Value looked up from file */
660 extern macro_item
*macros
; /* Configuration macros */
661 extern macro_item
*macros_user
; /* Non-builtin configuration macros */
662 extern macro_item
*mlast
; /* Last item in macro list */
663 extern uschar
*mailstore_basename
; /* For mailstore deliveries */
664 #ifdef WITH_CONTENT_SCAN
665 extern uschar
*malware_name
; /* Name of virus or malware ("W32/Klez-H") */
667 extern int max_received_linelength
;/* What it says */
668 extern int max_username_length
; /* For systems with broken getpwnam() */
669 extern int message_age
; /* In seconds */
670 extern uschar
*message_body
; /* Start of message body for filter */
671 extern uschar
*message_body_end
; /* End of message body for filter */
672 extern BOOL message_body_newlines
; /* FALSE => remove newlines */
673 extern int message_body_size
; /* Sic */
674 extern int message_body_visible
; /* Amount visible in message_body */
675 extern int message_ended
; /* State of message reading and how ended */
676 extern uschar
*message_headers
; /* When built */
677 extern uschar message_id_option
[]; /* -E<message-id> for use as option */
678 extern uschar
*message_id_external
; /* External form of following */
679 extern uschar
*message_id_domain
; /* Expanded to form domain-part of message_id */
680 extern uschar
*message_id_text
; /* Expanded to form message_id */
681 extern struct timeval message_id_tv
; /* Time used to create last message_id */
682 extern int message_linecount
; /* As it says */
683 extern BOOL message_logs
; /* TRUE to write message logs */
684 extern int message_size
; /* Size of message */
685 extern uschar
*message_size_limit
; /* As it says */
687 extern BOOL message_smtputf8
; /* Internationalized mail handling */
688 extern int message_utf8_downconvert
; /* convert from utf8 */
689 const extern pcre
*regex_UTF8
; /* For recognizing SMTPUTF8 settings */
691 extern uschar message_subdir
[]; /* Subdirectory for messages */
692 extern uschar
*message_reference
; /* Reference for error messages */
694 /* MIME ACL expandables */
695 #ifdef WITH_CONTENT_SCAN
696 extern int mime_anomaly_level
;
697 extern const uschar
*mime_anomaly_text
;
698 extern uschar
*mime_boundary
;
699 extern uschar
*mime_charset
;
700 extern uschar
*mime_content_description
;
701 extern uschar
*mime_content_disposition
;
702 extern uschar
*mime_content_id
;
703 extern unsigned int mime_content_size
;
704 extern uschar
*mime_content_transfer_encoding
;
705 extern uschar
*mime_content_type
;
706 extern uschar
*mime_decoded_filename
;
707 extern uschar
*mime_filename
;
708 extern int mime_is_multipart
;
709 extern int mime_is_coverletter
;
710 extern int mime_is_rfc822
;
711 extern int mime_part_count
;
714 extern BOOL mua_wrapper
; /* TRUE when Exim is wrapping an MUA */
716 extern uid_t
*never_users
; /* List of uids never to be used */
717 #ifdef WITH_CONTENT_SCAN
720 extern const int on
; /* For setsockopt */
721 extern const int off
;
723 extern optionlist optionlist_auths
[]; /* These option lists are made */
724 extern int optionlist_auths_size
; /* global so that readconf can */
725 extern optionlist optionlist_routers
[]; /* see them for printing out */
726 extern int optionlist_routers_size
; /* the options. */
727 extern optionlist optionlist_transports
[];
728 extern int optionlist_transports_size
;
730 extern uid_t original_euid
; /* Original effective uid */
731 extern gid_t originator_gid
; /* Gid of whoever wrote spool file */
732 extern uschar
*originator_login
; /* Login of same */
733 extern uschar
*originator_name
; /* Full name of same */
734 extern uid_t originator_uid
; /* Uid of ditto */
735 extern uschar
*override_local_interfaces
; /* Value of -oX argument */
736 extern uschar
*override_pid_file_path
; /* Value of -oP argument */
738 extern uschar
*percent_hack_domains
; /* Local domains for which '% operates */
739 extern uschar
*pid_file_path
; /* For writing daemon pids */
740 #ifdef EXPERIMENTAL_PIPE_CONNECT
741 extern uschar
*pipe_connect_advertise_hosts
; /* for banner/EHLO pipelining */
743 extern uschar
*pipelining_advertise_hosts
; /* As it says */
745 extern BOOL prdr_enable
; /* As it says */
746 extern BOOL prdr_requested
; /* Connecting mail server wants PRDR */
748 extern BOOL preserve_message_logs
; /* Save msglog files */
749 extern uschar
*primary_hostname
; /* Primary name of this computer */
750 extern BOOL print_topbitchars
; /* Topbit chars are printing chars */
751 extern uschar process_info
[]; /* For SIGUSR1 output */
752 extern int process_info_len
;
753 extern uschar
*process_log_path
; /* Alternate path */
754 extern BOOL prod_requires_admin
; /* TRUE if prodding requires admin */
756 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
757 extern uschar
*hosts_proxy
; /* Hostlist which (require) use proxy protocol */
758 extern uschar
*proxy_external_address
; /* IP of remote interface of proxy */
759 extern int proxy_external_port
; /* Port on remote interface of proxy */
760 extern uschar
*proxy_local_address
; /* IP of local interface of proxy */
761 extern int proxy_local_port
; /* Port on local interface of proxy */
762 extern BOOL proxy_session
; /* TRUE if receiving mail from valid proxy */
765 extern uschar
*prvscheck_address
; /* Set during prvscheck expansion item */
766 extern uschar
*prvscheck_keynum
; /* Set during prvscheck expansion item */
767 extern uschar
*prvscheck_result
; /* Set during prvscheck expansion item */
769 extern const uschar
*qualify_domain_recipient
; /* Domain to qualify recipients with */
770 extern uschar
*qualify_domain_sender
; /* Domain to qualify senders with */
771 extern uschar
*queue_domains
; /* Queue these domains */
772 extern BOOL queue_list_requires_admin
; /* TRUE if -bp requires admin */
773 /* immediate children */
774 extern pid_t queue_run_pid
; /* PID of the queue running process or 0 */
775 extern int queue_run_pipe
; /* Pipe for synchronizing */
776 extern int queue_interval
; /* Queue running interval */
777 extern uschar
*queue_name
; /* Name of queue, if nondefault spooling */
778 extern BOOL queue_only
; /* TRUE to disable immediate delivery */
779 extern int queue_only_load
; /* Max load before auto-queue */
780 extern BOOL queue_only_load_latch
; /* Latch queue_only_load TRUE */
781 extern uschar
*queue_only_file
; /* Queue if file exists/not-exists */
782 extern BOOL queue_only_override
; /* Allow override from command line */
783 extern BOOL queue_run_in_order
; /* As opposed to random */
784 extern uschar
*queue_run_max
; /* Max queue runners */
785 extern uschar
*queue_smtp_domains
; /* Ditto, for these domains */
787 extern unsigned int random_seed
; /* Seed for random numbers */
788 extern tree_node
*ratelimiters_cmd
; /* Results of command ratelimit checks */
789 extern tree_node
*ratelimiters_conn
; /* Results of connection ratelimit checks */
790 extern tree_node
*ratelimiters_mail
; /* Results of per-mail ratelimit checks */
791 extern uschar
*raw_active_hostname
; /* Pre-expansion */
792 extern uschar
*raw_sender
; /* Before rewriting */
793 extern uschar
**raw_recipients
; /* Before rewriting */
794 extern int raw_recipients_count
;
795 extern int rcpt_count
; /* Count of RCPT commands in a message */
796 extern int rcpt_fail_count
; /* Those that got 5xx */
797 extern int rcpt_defer_count
; /* Those that got 4xx */
798 extern gid_t real_gid
; /* Real gid */
799 extern uid_t real_uid
; /* Real user running program */
800 extern int receive_linecount
; /* Mainly for BSMTP errors */
801 extern int receive_messagecount
; /* Mainly for BSMTP errors */
802 extern int receive_timeout
; /* For non-SMTP acceptance */
803 extern int received_count
; /* Count of Received: headers */
804 extern uschar
*received_for
; /* For "for" field */
805 extern uschar
*received_header_text
; /* Definition of Received: header */
806 extern int received_headers_max
; /* Max count of Received: headers */
807 extern struct timeval received_time
; /* Time the message was received */
808 extern struct timeval received_time_taken
; /* Interval the message took to be received */
809 extern uschar
*recipient_data
; /* lookup data for recipients */
810 extern uschar
*recipient_unqualified_hosts
; /* Permitted unqualified recipients */
811 extern uschar
*recipient_verify_failure
; /* What went wrong */
812 extern int recipients_list_max
; /* Maximum number fitting in list */
813 extern int recipients_max
; /* Max permitted */
814 extern BOOL recipients_max_reject
; /* If TRUE, reject whole message */
815 extern const pcre
*regex_AUTH
; /* For recognizing AUTH settings */
816 extern const pcre
*regex_check_dns_names
; /* For DNS name checking */
817 extern const pcre
*regex_From
; /* For recognizing "From_" lines */
818 extern const pcre
*regex_CHUNKING
; /* For recognizing CHUNKING (RFC 3030) */
819 extern const pcre
*regex_IGNOREQUOTA
; /* For recognizing IGNOREQUOTA (LMTP) */
820 extern const pcre
*regex_PIPELINING
; /* For recognizing PIPELINING */
821 extern const pcre
*regex_SIZE
; /* For recognizing SIZE settings */
822 #ifdef EXPERIMENTAL_PIPE_CONNECT
823 extern const pcre
*regex_EARLY_PIPE
; /* For recognizing PIPE_CONNCT */
825 extern const pcre
*regex_ismsgid
; /* Compiled r.e. for message it */
826 extern const pcre
*regex_smtp_code
; /* For recognizing SMTP codes */
827 extern uschar
*regex_vars
[]; /* $regexN variables */
828 #ifdef WHITELIST_D_MACROS
829 extern const pcre
*regex_whitelisted_macro
; /* For -D macro values */
831 #ifdef WITH_CONTENT_SCAN
832 extern uschar
*regex_match_string
; /* regex that matched a line (regex ACL condition) */
834 extern int remote_delivery_count
; /* Number of remote addresses */
835 extern int remote_max_parallel
; /* Maximum parallel delivery */
836 extern uschar
*remote_sort_domains
; /* Remote domain sorting order */
837 extern retry_config
*retries
; /* Chain of retry config information */
838 extern int retry_data_expire
; /* When to expire retry data */
839 extern int retry_interval_max
; /* Absolute maximum */
840 extern int retry_maximum_timeout
; /* The maximum timeout */
841 extern uschar
*return_path
; /* Return path for a message */
842 extern BOOL return_path_remove
; /* Remove return-path headers */
843 extern int rewrite_existflags
; /* Indicate which headers have rewrites */
844 extern uschar
*rfc1413_hosts
; /* RFC hosts */
845 extern int rfc1413_query_timeout
; /* Timeout on RFC 1413 calls */
846 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
847 extern uid_t root_gid
; /* The gid for root */
848 extern uid_t root_uid
; /* The uid for root */
849 extern router_info routers_available
[];/* Vector of available routers */
850 extern router_instance
*routers
; /* Chain of instantiated routers */
851 extern router_instance router_defaults
;/* Default values */
852 extern uschar
*router_name
; /* Name of router last started */
853 extern ip_address_item
*running_interfaces
; /* Host's running interfaces */
854 extern uschar
*running_status
; /* Flag string for testing */
855 extern int runrc
; /* rc from ${run} */
857 extern uschar
*search_error_message
; /* Details of lookup problem */
858 extern uschar
*self_hostname
; /* Self host after routing->directors */
859 extern unsigned int sender_address_cache
[(MAX_NAMED_LIST
* 2)/32]; /* Cache bits for sender */
860 extern uschar
*sender_address_data
; /* address_data from sender verify */
861 extern uschar
*sender_address_unrewritten
; /* Set if rewritten by verify */
862 extern uschar
*sender_data
; /* lookup result for senders */
863 extern unsigned int sender_domain_cache
[(MAX_NAMED_LIST
* 2)/32]; /* Cache bits for sender domain */
864 extern uschar
*sender_fullhost
; /* Sender host name + address */
865 extern BOOL sender_helo_dnssec
; /* True if HELO verify used DNS and was DNSSEC */
866 extern uschar
*sender_helo_name
; /* Host name from HELO/EHLO */
867 extern uschar
**sender_host_aliases
; /* Points to list of alias names */
868 extern uschar
*sender_host_auth_pubname
; /* Public-name of authentication method */
869 extern unsigned int sender_host_cache
[(MAX_NAMED_LIST
* 2)/32]; /* Cache bits for incoming host */
870 extern BOOL sender_host_dnssec
; /* true if sender_host_name verified in DNSSEC */
871 extern uschar
*sender_ident
; /* Sender identity via RFC 1413 */
872 extern uschar
*sender_rate
; /* Sender rate computed by ACL */
873 extern uschar
*sender_rate_limit
; /* Configured rate limit */
874 extern uschar
*sender_rate_period
; /* Configured smoothing period */
875 extern uschar
*sender_rcvhost
; /* Host data for Received: */
876 extern uschar
*sender_unqualified_hosts
; /* Permitted unqualified senders */
877 extern uschar
*sender_verify_failure
; /* What went wrong */
878 extern address_item
*sender_verified_list
; /* Saved chain of sender verifies */
879 extern address_item
*sender_verified_failed
; /* The one that caused denial */
880 extern uschar
*sending_ip_address
; /* Address of outgoing (SMTP) interface */
881 extern int sending_port
; /* Port of outgoing interface */
882 extern SIGNAL_BOOL sigalrm_seen
; /* Flag for sigalrm_handler */
883 extern const uschar
*sigalarm_setter
; /* For debug, set to callpoint of alarm() */
884 extern uschar
**sighup_argv
; /* Args for re-execing after SIGHUP */
885 extern int slow_lookup_log
; /* Log DNS lookups taking longer than N millisecs */
886 extern int smtp_accept_count
; /* Count of connections */
887 extern BOOL smtp_accept_keepalive
; /* Set keepalive on incoming */
888 extern int smtp_accept_max
; /* Max SMTP connections */
889 extern int smtp_accept_max_nonmail
;/* Max non-mail commands in one con */
890 extern uschar
*smtp_accept_max_nonmail_hosts
; /* Limit non-mail cmds from these hosts */
891 extern int smtp_accept_max_per_connection
; /* Max msgs per connection */
892 extern uschar
*smtp_accept_max_per_host
; /* Max SMTP cons from one IP addr */
893 extern int smtp_accept_queue
; /* Queue after so many connections */
894 extern int smtp_accept_queue_per_connection
; /* Queue after so many msgs */
895 extern int smtp_accept_reserve
; /* Reserve these SMTP connections */
896 extern uschar
*smtp_active_hostname
; /* Hostname for this message */
897 extern uschar
*smtp_banner
; /* Banner string (to be expanded) */
898 extern BOOL smtp_check_spool_space
; /* TRUE to check SMTP SIZE value */
899 extern int smtp_ch_index
; /* Index in smtp_connection_had */
900 extern uschar
*smtp_cmd_argument
; /* For all SMTP commands */
901 extern uschar
*smtp_cmd_buffer
; /* SMTP command buffer */
902 extern struct timeval smtp_connection_start
; /* Start time of SMTP connection */
903 extern uschar smtp_connection_had
[]; /* Recent SMTP commands */
904 extern int smtp_connect_backlog
; /* Max backlog permitted */
905 extern double smtp_delay_mail
; /* Current MAIL delay */
906 extern double smtp_delay_rcpt
; /* Current RCPT delay */
907 extern BOOL smtp_enforce_sync
; /* Enforce sync rules */
908 extern uschar
*smtp_etrn_command
; /* Command to run */
909 extern BOOL smtp_etrn_serialize
; /* Only one at once */
910 extern FILE *smtp_in
; /* Incoming SMTP input file */
911 extern int smtp_load_reserve
; /* Only from reserved if load > this */
912 extern int smtp_mailcmd_count
; /* Count of MAIL commands */
913 extern int smtp_max_synprot_errors
;/* Max syntax/protocol errors */
914 extern int smtp_max_unknown_commands
; /* As it says */
915 extern uschar
*smtp_notquit_reason
; /* Global for disconnect reason */
916 extern FILE *smtp_out
; /* Incoming SMTP output file */
917 extern uschar
*smtp_ratelimit_hosts
; /* Rate limit these hosts */
918 extern uschar
*smtp_ratelimit_mail
; /* Parameters for MAIL limiting */
919 extern uschar
*smtp_ratelimit_rcpt
; /* Parameters for RCPT limiting */
920 extern uschar
*smtp_read_error
; /* Message for SMTP input error */
921 extern int smtp_receive_timeout
; /* Applies to each received line */
922 extern uschar
*smtp_receive_timeout_s
; /* ... expandable version */
923 extern uschar
*smtp_reserve_hosts
; /* Hosts for reserved slots */
924 extern BOOL smtp_return_error_details
; /* TRUE to return full info */
925 extern int smtp_rlm_base
; /* Base interval for MAIL rate limit */
926 extern double smtp_rlm_factor
; /* Factor for MAIL rate limit */
927 extern int smtp_rlm_limit
; /* Max delay */
928 extern int smtp_rlm_threshold
; /* Threshold for RCPT rate limit */
929 extern int smtp_rlr_base
; /* Base interval for RCPT rate limit */
930 extern double smtp_rlr_factor
; /* Factor for RCPT rate limit */
931 extern int smtp_rlr_limit
; /* Max delay */
932 extern int smtp_rlr_threshold
; /* Threshold for RCPT rate limit */
933 extern unsigned smtp_peer_options
; /* Global flags for passed connections */
934 extern unsigned smtp_peer_options_wrap
; /* stacked version hidden by TLS */
936 extern uschar
*smtputf8_advertise_hosts
; /* ingress control */
939 #ifdef WITH_CONTENT_SCAN
940 extern uschar
*spamd_address
; /* address for the spamassassin daemon */
941 extern uschar
*spam_bar
; /* the spam "bar" (textual representation of spam_score) */
942 extern uschar
*spam_report
; /* the spamd report (multiline) */
943 extern uschar
*spam_action
; /* the spamd recommended-action */
944 extern uschar
*spam_score
; /* the spam score (float) */
945 extern uschar
*spam_score_int
; /* spam_score * 10 (int) */
948 extern uschar
*spf_guess
; /* spf best-guess record */
949 extern uschar
*spf_header_comment
; /* spf header comment */
950 extern uschar
*spf_received
; /* Received-SPF: header */
951 extern uschar
*spf_result
; /* spf result in string form */
952 extern BOOL spf_result_guessed
; /* spf result is of best-guess operation */
953 extern uschar
*spf_smtp_comment
; /* spf comment to include in SMTP reply */
955 extern BOOL split_spool_directory
; /* TRUE to use multiple subdirs */
956 extern FILE *spool_data_file
; /* handle for -D file */
957 extern uschar
*spool_directory
; /* Name of spool directory */
958 extern BOOL spool_wireformat
; /* can write wireformat -D files */
959 #ifdef EXPERIMENTAL_SRS
960 extern uschar
*srs_config
; /* SRS config secret:max age:hash length:use timestamp:use hash */
961 extern uschar
*srs_db_address
; /* SRS db address */
962 extern uschar
*srs_db_key
; /* SRS db key */
963 extern int srs_hashlength
; /* SRS hash length */
964 extern int srs_hashmin
; /* SRS minimum hash length */
965 extern int srs_maxage
; /* SRS max age */
966 extern uschar
*srs_orig_sender
; /* SRS original sender */
967 extern uschar
*srs_orig_recipient
; /* SRS original recipient */
968 extern uschar
*srs_recipient
; /* SRS recipient */
969 extern uschar
*srs_secrets
; /* SRS secrets list */
970 extern uschar
*srs_status
; /* SRS staus */
971 extern BOOL srs_usehash
; /* SRS use hash flag */
972 extern BOOL srs_usetimestamp
; /* SRS use timestamp flag */
974 extern BOOL strict_acl_vars
; /* ACL variables have to be set before being used */
975 extern int string_datestamp_offset
;/* After insertion by string_format */
976 extern int string_datestamp_length
;/* After insertion by string_format */
977 extern int string_datestamp_type
; /* After insertion by string_format */
978 extern BOOL strip_excess_angle_brackets
; /* Surrounding route-addrs */
979 extern BOOL strip_trailing_dot
; /* Remove dots at ends of domains */
980 extern uschar
*submission_domain
; /* Domain for submission mode */
981 extern uschar
*submission_name
; /* User name set from ACL */
982 extern BOOL syslog_duplication
; /* FALSE => no duplicate logging */
983 extern int syslog_facility
; /* As defined by Syslog.h */
984 extern BOOL syslog_pid
; /* TRUE if PID on syslogs */
985 extern uschar
*syslog_processname
; /* 'ident' param to openlog() */
986 extern BOOL syslog_timestamp
; /* TRUE if time on syslogs */
987 extern uschar
*system_filter
; /* Name of system filter file */
989 extern uschar
*system_filter_directory_transport
; /* Transports for the */
990 extern uschar
*system_filter_file_transport
; /* system filter */
991 extern uschar
*system_filter_pipe_transport
;
992 extern uschar
*system_filter_reply_transport
;
994 extern gid_t system_filter_gid
; /* Gid for running system filter */
995 extern BOOL system_filter_gid_set
; /* TRUE if gid set */
996 extern uid_t system_filter_uid
; /* Uid for running system filter */
997 extern BOOL system_filter_uid_set
; /* TRUE if uid set */
999 extern blob tcp_fastopen_nodata
; /* for zero-data TFO connect requests */
1000 extern BOOL tcp_nodelay
; /* Controls TCP_NODELAY on daemon */
1001 extern tfo_state_t tcp_out_fastopen
; /* TCP fast open */
1002 #ifdef USE_TCP_WRAPPERS
1003 extern uschar
*tcp_wrappers_daemon_name
; /* tcpwrappers daemon lookup name */
1005 extern int test_harness_load_avg
; /* For use when testing */
1006 extern int thismessage_size_limit
; /* Limit for this message */
1007 extern int timeout_frozen_after
; /* Max time to keep frozen messages */
1009 extern uschar
*transport_name
; /* Name of transport last started */
1010 extern int transport_count
; /* Count of bytes transported */
1011 extern int transport_newlines
; /* Accurate count of number of newline chars transported */
1012 extern const uschar
**transport_filter_argv
; /* For on-the-fly filtering */
1013 extern int transport_filter_timeout
; /* Timeout for same */
1015 extern transport_info transports_available
[]; /* Vector of available transports */
1016 extern transport_instance
*transports
; /* Chain of instantiated transports */
1017 extern transport_instance transport_defaults
; /* Default values */
1019 extern int transport_write_timeout
;/* Set to time out individual writes */
1021 extern tree_node
*tree_dns_fails
; /* Tree of DNS lookup failures */
1022 extern tree_node
*tree_duplicates
; /* Tree of duplicate addresses */
1023 extern tree_node
*tree_nonrecipients
; /* Tree of nonrecipient addresses */
1024 extern tree_node
*tree_unusable
; /* Tree of unusable addresses */
1026 extern gid_t
*trusted_groups
; /* List of trusted groups */
1027 extern uid_t
*trusted_users
; /* List of trusted users */
1028 extern uschar
*timezone_string
; /* Required timezone setting */
1030 extern uschar
*unknown_login
; /* To use when login id unknown */
1031 extern uschar
*unknown_username
; /* Ditto */
1032 extern uschar
*untrusted_set_sender
; /* Let untrusted users set these senders */
1033 extern uschar
*uucp_from_pattern
; /* For recognizing "From " lines */
1034 extern uschar
*uucp_from_sender
; /* For building the sender */
1036 extern uschar
*warn_message_file
; /* Template for warning messages */
1037 extern uschar
*warnmsg_delay
; /* String form of delay time */
1038 extern uschar
*warnmsg_recipients
; /* Recipients of warning message */
1039 extern BOOL write_rejectlog
; /* Control of reject logging */
1041 extern uschar
*verify_mode
; /* Running a router in verify mode */
1042 extern uschar
*version_copyright
; /* Copyright notice */
1043 extern uschar
*version_date
; /* Date of compilation */
1044 extern uschar
*version_cnumber
; /* Compile number */
1045 extern uschar
*version_string
; /* Version string */
1047 extern int warning_count
; /* Delay warnings sent for this msg */
1049 /* End of globals.h */
projects / exim.git / blob