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[exim.git] / src / src / globals.h
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ddea74fa 1/* $Cambridge: exim/src/src/globals.h,v 1.59 2007/08/23 11:01:49 ph10 Exp $ */
059ec3d9
PH		 2
3/*************************************************
4* Exim - an Internet mail transport agent *
5*************************************************/
6
184e8823 7/* Copyright (c) University of Cambridge 1995 - 2007 */
059ec3d9
PH		 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
11that they are easy to find. However, those that are visible during the
12compilation of the local_scan() function are defined separately in the
13local_scan.h header file. */
14
15/* First put any specials that are required for some operating systems. */
16
17#ifdef NEED_H_ERRNO
18extern int h_errno;
19#endif
20
21/* Now things that are present only when configured. */
22
23#ifdef EXIM_PERL
24extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */
25extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */
26extern BOOL opt_perl_started; /* Set once interpreter started */
27#endif
28
1a46a8c5
PH		 29#ifdef EXPAND_DLFUNC
30extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
31#endif
32
059ec3d9
PH		 33#ifdef LOOKUP_IBASE
34extern uschar *ibase_servers;
35#endif
36
37#ifdef LOOKUP_LDAP
38extern uschar *eldap_default_servers; /* List of default servers */
39extern int eldap_version; /* LDAP version */
40#endif
41
42#ifdef LOOKUP_MYSQL
43extern uschar *mysql_servers; /* List of servers and connect info */
44#endif
45
46#ifdef LOOKUP_ORACLE
47extern uschar *oracle_servers; /* List of servers and connect info */
48#endif
49
50#ifdef LOOKUP_PGSQL
51extern uschar *pgsql_servers; /* List of servers and connect info */
52#endif
53
31480e42
PH		 54#ifdef LOOKUP_SQLITE
55extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
56#endif
57
059ec3d9
PH		 58#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
59extern BOOL move_frozen_messages; /* Get them out of the normal directory */
60#endif
61
62/* These variables are outside the #ifdef because it keeps the code less
63cluttered in several places (e.g. during logging) if we can always refer to
64them. Also, the tls_ variables are now always visible. */
65
66extern int tls_active; /* fd/socket when in a TLS session */
67extern BOOL tls_certificate_verified; /* Client certificate verified */
68extern uschar *tls_cipher; /* Cipher used */
69extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
70extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
71extern uschar *tls_peerdn; /* DN from peer */
72
73#ifdef SUPPORT_TLS
83da1223
PH		 74extern uschar *gnutls_require_mac; /* So some can be avoided */
75extern uschar *gnutls_require_kx; /* So some can be avoided */
76extern uschar *gnutls_require_proto; /* So some can be avoided */
059ec3d9
PH		 77extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
78extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
79extern uschar *tls_certificate; /* Certificate file */
80extern uschar *tls_crl; /* CRL File */
81extern uschar *tls_dhparam; /* DH param file */
82extern BOOL tls_offered; /* Server offered TLS */
83extern uschar *tls_privatekey; /* Private key file */
84extern BOOL tls_remember_esmtp; /* For YAEB */
85extern uschar *tls_require_ciphers; /* So some can be avoided */
86extern uschar *tls_try_verify_hosts; /* Optional client verification */
87extern uschar *tls_verify_certificates;/* Path for certificates to check */
88extern uschar *tls_verify_hosts; /* Mandatory client verification */
89#endif
90
91
92/* Input-reading functions for messages, so we can use special ones for
93incoming TCP/IP. */
94
95extern int (*receive_getc)(void);
96extern int (*receive_ungetc)(int);
97extern int (*receive_feof)(void);
98extern int (*receive_ferror)(void);
58eb016e 99extern BOOL (*receive_smtp_buffered)(void);
059ec3d9
PH		 100
101
102/* For clearing, saving, restoring address expansion variables. We have to have
103the size of this vector set explicitly, because it is referenced from more than
104one module. */
105
106extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
107
108/* General global variables */
109
110extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
71fafd95 111extern header_line *acl_added_headers; /* Headers added by an ACL */
059ec3d9
PH		 112extern tree_node *acl_anchor; /* Tree of named ACLs */
113extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
54cdb463
PH		 114#ifdef WITH_CONTENT_SCAN
115extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
116#endif
45b91596 117extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
059ec3d9
PH		 118extern uschar *acl_smtp_auth; /* ACL run for AUTH */
119extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
120extern uschar *acl_smtp_data; /* ACL run after DATA received */
121extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
122extern uschar *acl_smtp_expn; /* ACL run for EXPN */
123extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
124extern uschar *acl_smtp_mail; /* ACL run for MAIL */
125extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
8523533c
TK		 126#ifdef WITH_CONTENT_SCAN
127extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
128#endif
8f128379 129extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
059ec3d9
PH		 130extern uschar *acl_smtp_predata; /* ACL run for DATA command */
131extern uschar *acl_smtp_quit; /* ACL run for QUIT */
132extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
133extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
134extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
135extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
38a0a95f
PH		 136extern tree_node *acl_var_c; /* ACL connection variables */
137extern tree_node *acl_var_m; /* ACL messsage variables */
059ec3d9 138extern uschar *acl_verify_message; /* User message for verify failure */
059ec3d9 139extern string_item *acl_warn_logged; /* Logged lines */
a5bd321b 140extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
059ec3d9 141extern uschar *acl_wherenames[]; /* Names for messages */
69358f02
PH		 142extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
143extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
059ec3d9
PH		 144extern address_item *addr_duplicate; /* Duplicate address list */
145extern address_item address_defaults; /* Default data for address item */
146extern uschar *address_file; /* Name of file when delivering to one */
147extern uschar *address_pipe; /* Pipe command when delivering to one */
148extern BOOL address_test_mode; /* True for -bt */
149extern tree_node *addresslist_anchor; /* Tree of defined address lists */
150extern int addresslist_count; /* Number defined */
151extern gid_t *admin_groups; /* List of admin groups */
152extern BOOL admin_user; /* True if caller can do admin */
c46782ef 153extern BOOL allow_auth_unadvertised;/* As it says */
059ec3d9
PH		 154extern BOOL allow_domain_literals; /* As it says */
155extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
156extern BOOL allow_unqualified_recipient; /* As it says */
157extern BOOL allow_unqualified_sender; /* Ditto */
158extern BOOL allow_utf8_domains; /* For experimenting */
159extern uschar *authenticated_id; /* ID that was authenticated */
160extern uschar *authenticated_sender; /* From AUTH on MAIL */
161extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
162extern uschar *auth_advertise_hosts; /* Only advertise to these */
163extern auth_info auths_available[]; /* Vector of available auth mechanisms */
164extern auth_instance *auths; /* Chain of instantiated auths */
165extern auth_instance auth_defaults; /* Default values */
166extern uschar *auth_defer_msg; /* Error message for log */
167extern uschar *auth_defer_user_msg; /* Error message for user */
f78eb7c6 168extern uschar *auth_vars[]; /* $authn variables */
059ec3d9 169extern int auto_thaw; /* Auto-thaw interval */
8523533c
TK		 170#ifdef WITH_CONTENT_SCAN
171extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
172#endif
059ec3d9
PH		 173
174extern BOOL background_daemon; /* Set FALSE to keep in foreground */
175extern uschar *base62_chars; /* Table of base-62 characters */
176extern uschar *bi_command; /* Command for -bi option */
177extern uschar *big_buffer; /* Used for various temp things */
178extern int big_buffer_size; /* Current size (can expand) */
8523533c
TK		 179#ifdef EXPERIMENTAL_BRIGHTMAIL
180extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
181extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
182extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
183extern uschar *bmi_config_file; /* Brightmail config file */
184extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
185extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
186extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
187#endif
059ec3d9
PH		 188extern uschar *bounce_message_file; /* Template file */
189extern uschar *bounce_message_text; /* One-liner */
190extern uschar *bounce_recipient; /* When writing an errmsg */
191extern BOOL bounce_return_body; /* Include body in returned message */
192extern BOOL bounce_return_message; /* Include message in bounce */
193extern int bounce_return_size_limit; /* Max amount to return */
194extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
195extern int bsmtp_transaction_linecount; /* Start of last transaction */
196
197extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
198extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
199extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
200extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
201extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
202extern uschar *check_dns_names_pattern;/* Regex for syntax check */
203extern int check_log_inodes; /* Minimum for message acceptance */
204extern int check_log_space; /* Minimum for message acceptance */
a0d6ba8a 205extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
059ec3d9
PH		 206extern int check_spool_inodes; /* Minimum for message acceptance */
207extern int check_spool_space; /* Minimum for message acceptance */
208extern int clmacro_count; /* Number of command line macros */
209extern uschar *clmacros[]; /* Copy of them, for re-exec */
210extern int connection_max_messages;/* Max down one SMTP connection */
211extern BOOL config_changed; /* True if -C used */
212extern FILE *config_file; /* Configuration file */
213extern uschar *config_filename; /* Configuration file name */
35edf2ff
PH		 214#ifdef CONFIGURE_GROUP
215extern gid_t config_gid; /* Additional group owner */
216#endif
059ec3d9
PH		 217extern int config_lineno; /* Line number */
218extern uschar *config_main_filelist; /* List of possible config files */
219extern uschar *config_main_filename; /* File name actually used */
220#ifdef CONFIGURE_OWNER
221extern uid_t config_uid; /* Additional owner */
222#endif
223extern uschar *continue_hostname; /* Host for continued delivery */
224extern uschar *continue_host_address; /* IP address for ditto */
225extern BOOL continue_more; /* Flag more addresses waiting */
226extern int continue_sequence; /* Sequence num for continued delivery */
227extern uschar *continue_transport; /* Transport for continued delivery */
228
e5a9dba6
PH		 229extern uschar *csa_status; /* Client SMTP Authorization result */
230
059ec3d9
PH		 231extern BOOL daemon_listen; /* True if listening required */
232extern uschar *daemon_smtp_port; /* Can be a list of ports */
4aee0225
PH		 233extern int daemon_startup_retries; /* Number of times to retry */
234extern int daemon_startup_sleep; /* Sleep between retries */
3d235903 235extern BOOL debug_daemon; /* Debug the daemon process only */
059ec3d9
PH		 236extern int debug_fd; /* The fd for debug_file */
237extern FILE *debug_file; /* Where to write debugging info */
238extern bit_table debug_options[]; /* Table of debug options */
239extern int debug_options_count; /* Size of table */
240extern int delay_warning[]; /* Times between warnings */
241extern uschar *delay_warning_condition; /* Condition string for warnings */
242extern BOOL delivery_date_remove; /* Remove delivery-date headers */
243
244extern uschar *deliver_address_data; /* Arbitrary data for an address */
245extern int deliver_datafile; /* FD for data part of message */
246extern uschar *deliver_domain; /* The local domain for delivery */
247extern uschar *deliver_domain_data; /* From domain lookup */
248extern uschar *deliver_domain_orig; /* The original local domain for delivery */
249extern uschar *deliver_domain_parent; /* The parent domain for delivery */
250extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
251extern BOOL deliver_firsttime; /* True for first delivery attempt */
252extern BOOL deliver_force; /* TRUE if delivery was forced */
253extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
254extern int deliver_frozen_at; /* Time of freezing */
255extern uschar *deliver_home; /* Home directory for pipes */
256extern uschar *deliver_host; /* (First) host for routed local deliveries */
257 /* Remote host for filter */
258extern uschar *deliver_host_address; /* Address for remote delivery filter */
259extern uschar *deliver_in_buffer; /* Buffer for copying file */
260extern ino_t deliver_inode; /* Inode for appendfile */
261extern uschar *deliver_localpart; /* The local part for delivery */
262extern uschar *deliver_localpart_data; /* From local part lookup */
263extern uschar *deliver_localpart_orig; /* The original local part for delivery */
264extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
265extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
266extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
267extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
268extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
269extern uschar *deliver_out_buffer; /* Buffer for copying file */
270extern int deliver_queue_load_max; /* Different value for queue running */
271extern address_item *deliver_recipients; /* Current set of addresses */
272extern uschar *deliver_selectstring; /* For selecting by recipient */
273extern BOOL deliver_selectstring_regex; /* String is regex */
274extern uschar *deliver_selectstring_sender; /* For selecting by sender */
275extern BOOL deliver_selectstring_sender_regex; /* String is regex */
8523533c
TK		 276#ifdef WITH_OLD_DEMIME
277extern int demime_errorlevel; /* Severity of MIME error */
278extern int demime_ok; /* Nonzero if message has been demimed */
279extern uschar *demime_reason; /* Reason for broken MIME container */
280#endif
4c590bd1 281extern BOOL disable_callout_flush; /* Don't flush before callouts */
047bdd8c 282extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
54fc8428
PH		 283#ifdef ENABLE_DISABLE_FSYNC
284extern BOOL disable_fsync; /* Not for normal use */
285#endif
7e66e54d 286extern BOOL disable_ipv6; /* Don't do any IPv6 things */
059ec3d9
PH		 287extern BOOL disable_logging; /* Disables log writing when TRUE */
288
fb2274d4
TK		 289#ifdef EXPERIMENTAL_DOMAINKEYS
290extern uschar *dk_signing_domain; /* Domain used for signing a message. */
291extern uschar *dk_signing_selector; /* Selector used for signing a message. */
292extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
293#endif
294
059ec3d9 295extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
e5a9dba6
PH		 296extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
297extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
059ec3d9
PH		 298extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
299extern int dns_retrans; /* Retransmission time setting */
300extern int dns_retry; /* Number of retries */
301extern uschar *dnslist_domain; /* DNS (black) list domain */
93655c46 302extern uschar *dnslist_matched; /* DNS (black) list matched key */
059ec3d9
PH		 303extern uschar *dnslist_text; /* DNS (black) list text message */
304extern uschar *dnslist_value; /* DNS (black) list IP address */
305extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
306extern int domainlist_count; /* Number defined */
307extern BOOL dont_deliver; /* TRUE for -N option */
308extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
309
310/* This option is now a no-opt, retained for compatibility */
311extern BOOL drop_cr; /* For broken local MUAs */
312
0e22dfd1
PH		 313extern uschar *dsn_from; /* From: string for DSNs */
314
059ec3d9
PH		 315extern BOOL enable_dollar_recipients; /* Make $recipients available */
316extern int envelope_to_remove; /* Remove envelope_to_headers */
317extern int errno_quota; /* Quota errno in this OS */
318extern int error_handling; /* Error handling style */
319extern uschar *errors_copy; /* For taking copies of errors */
320extern uschar *errors_reply_to; /* Reply-to for error messages */
321extern int errors_sender_rc; /* Return after message to sender*/
322extern gid_t exim_gid; /* To be used with exim_uid */
323extern BOOL exim_gid_set; /* TRUE if exim_gid set */
324extern uschar *exim_path; /* Path to exec exim */
325extern uid_t exim_uid; /* Non-root uid for exim */
326extern BOOL exim_uid_set; /* TRUE if exim_uid set */
327extern int expand_forbid; /* RDO flags for forbidding things */
328extern int expand_nlength[]; /* Lengths of numbered strings */
329extern int expand_nmax; /* Max numerical value */
330extern uschar *expand_nstring[]; /* Numbered strings */
331extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
332extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
333extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
334
29aba418
TF		 335extern int fake_response; /* Fake FAIL or DEFER response to data */
336extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
059ec3d9
PH		 337extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
338extern BOOL filter_running; /* TRUE while running a filter */
339extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
f05da2e8
PH		 340extern int filter_test; /* Filter test type */
341extern uschar *filter_test_sfile; /* System filter test file */
342extern uschar *filter_test_ufile; /* User filter test file */
059ec3d9
PH		 343extern uschar *filter_thisaddress; /* For address looping */
344extern int finduser_retries; /* Retry count for getpwnam() */
345extern uid_t fixed_never_users[]; /* Can't be overridden */
8523533c
TK		 346#ifdef WITH_OLD_DEMIME
347extern uschar *found_extension; /* demime acl condition: file extension found */
348#endif
059ec3d9 349extern uschar *freeze_tell; /* Message on (some) freezings */
6a3f1455 350extern uschar *freeze_tell_config; /* The configured setting */
059ec3d9
PH		 351extern uschar *fudged_queue_times; /* For use in test harness */
352
353extern uschar *gecos_name; /* To be expanded when pattern matches */
354extern uschar *gecos_pattern; /* Pattern to match */
355extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
356
357extern int header_insert_maxlen; /* Max for inserting headers */
358extern int header_maxsize; /* Max total length for header */
359extern int header_line_maxsize; /* Max for an individual line */
360extern header_name header_names[]; /* Table of header names */
361extern int header_names_size; /* Number of entries */
362extern BOOL header_rewritten; /* TRUE if header changed by router */
363extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
364extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
365extern uschar *helo_lookup_domains; /* If these given, lookup host name */
366extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
367extern BOOL helo_verified; /* True if HELO verified */
d7b47fd0 368extern BOOL helo_verify_failed; /* True if attempt failed */
059ec3d9
PH		 369extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
370extern uschar *hex_digits; /* Used in several places */
371extern uschar *hold_domains; /* Hold up deliveries to these */
372extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
373extern BOOL host_checking_callout; /* TRUE if real callout wanted */
374extern uschar *host_data; /* Obtained from lookup in ACL */
375extern uschar *host_lookup; /* For which IP addresses are always looked up */
b08b24c8 376extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
059ec3d9
PH		 377extern BOOL host_lookup_failed; /* TRUE if lookup failed */
378extern uschar *host_lookup_order; /* Order of host lookup types */
379extern uschar *host_lookup_msg; /* Text for why it failed */
380extern int host_number; /* For sharing spools */
381extern uschar *host_number_string; /* For expanding */
382extern uschar *host_reject_connection; /* Reject these hosts */
383extern tree_node *hostlist_anchor; /* Tree of defined host lists */
384extern int hostlist_count; /* Number defined */
385extern uschar *hosts_connection_nolog; /* Limits the logging option */
386extern uschar *hosts_treat_as_local; /* For routing */
387
388extern int ignore_bounce_errors_after; /* Keep them for this time. */
389extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
390extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
391extern BOOL is_inetd; /* True for inetd calls */
0ce9abe6 392extern uschar *iterate_item; /* Item from iterate list */
059ec3d9
PH		 393
394extern int journal_fd; /* Fd for journal file */
395
396extern int keep_malformed; /* Time to keep malformed messages */
397
398extern uschar *eldap_dn; /* Where LDAP DNs are left */
399extern int load_average; /* Most recently read load average */
400extern BOOL local_error_message; /* True if handling one of these */
69358f02 401extern BOOL local_from_check; /* For adding Sender: (global value) */
059ec3d9
PH		 402extern uschar *local_from_prefix; /* Permitted prefixes */
403extern uschar *local_from_suffix; /* Permitted suffixes */
404extern uschar *local_interfaces; /* For forcing specific interfaces */
405extern uschar *local_scan_data; /* Text returned by local_scan() */
406extern optionlist local_scan_options[];/* Option list for local_scan() */
407extern int local_scan_options_count; /* Size of the list */
408extern int local_scan_timeout; /* Timeout for local_scan() */
409extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
410extern gid_t local_user_gid; /* As it says; may be set in routers */
411extern uid_t local_user_uid; /* As it says; may be set in routers */
412extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
413extern int localpartlist_count; /* Number defined */
414extern uschar *log_buffer; /* For constructing log entries */
415extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
416extern uschar *log_file_path; /* If unset, use default */
417extern bit_table log_options[]; /* Table of options */
418extern int log_options_count; /* Size of table */
6ea85e9a 419extern int log_reject_target; /* Target log for ACL rejections */
059ec3d9
PH		 420extern uschar *log_selector_string; /* As supplied in the config */
421extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
422extern BOOL log_testing_mode; /* TRUE in various testing modes */
423extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
6ea85e9a 424extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
059ec3d9
PH		 425extern uschar *login_sender_address; /* The actual sender address */
426extern lookup_info lookup_list[]; /* Vector of available lookups */
427extern int lookup_list_count; /* Number of entries in the list */
428extern int lookup_open_max; /* Max lookup files to cache */
429extern uschar *lookup_value; /* Value looked up from file */
430
431extern macro_item *macros; /* Configuration macros */
432extern uschar *mailstore_basename; /* For mailstore deliveries */
8523533c
TK		 433#ifdef WITH_CONTENT_SCAN
434extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
435#endif
d677b2f2 436extern int max_received_linelength;/* What it says */
059ec3d9
PH		 437extern int max_username_length; /* For systems with broken getpwnam() */
438extern int message_age; /* In seconds */
439extern uschar *message_body; /* Start of message body for filter */
440extern uschar *message_body_end; /* End of message body for filter */
ddea74fa 441extern BOOL message_body_newlines; /* FALSE => remove newlines */
059ec3d9
PH		 442extern int message_body_size; /* Sic */
443extern int message_body_visible; /* Amount visible in message_body */
444extern int message_ended; /* State of message reading and how ended */
445extern uschar *message_headers; /* When built */
446extern uschar message_id_option[]; /* -E<message-id> for use as option */
447extern uschar *message_id_external; /* External form of following */
448extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
449extern uschar *message_id_text; /* Expanded to form message_id */
450extern struct timeval message_id_tv; /* Time used to create last message_id */
451extern int message_linecount; /* As it says */
452extern BOOL message_logs; /* TRUE to write message logs */
453extern int message_size; /* Size of message */
454extern uschar *message_size_limit; /* As it says */
455extern uschar message_subdir[]; /* Subdirectory for messages */
456extern uschar *message_reference; /* Reference for error messages */
8523533c
TK		 457
458/* MIME ACL expandables */
459#ifdef WITH_CONTENT_SCAN
460extern int mime_anomaly_level;
461extern uschar *mime_anomaly_text;
462extern uschar *mime_boundary;
463extern uschar *mime_charset;
464extern uschar *mime_content_description;
465extern uschar *mime_content_disposition;
466extern uschar *mime_content_id;
467extern unsigned int mime_content_size;
468extern uschar *mime_content_transfer_encoding;
469extern uschar *mime_content_type;
470extern uschar *mime_decoded_filename;
471extern uschar *mime_filename;
472extern int mime_is_multipart;
473extern int mime_is_coverletter;
474extern int mime_is_rfc822;
475extern int mime_part_count;
476#endif
477
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PH		 478extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
479
480extern uid_t *never_users; /* List of uids never to be used */
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TK		 481#ifdef WITH_CONTENT_SCAN
482extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
483#endif
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PH		 484extern BOOL no_multiline_responses; /* For broken clients */
485
486extern optionlist optionlist_auths[]; /* These option lists are made */
487extern int optionlist_auths_size; /* global so that readconf can */
488extern optionlist optionlist_routers[]; /* see them for printing out */
489extern int optionlist_routers_size; /* the options. */
490extern optionlist optionlist_transports[];
491extern int optionlist_transports_size;
492
493extern uid_t original_euid; /* Original effective uid */
494extern gid_t originator_gid; /* Gid of whoever wrote spool file */
495extern uschar *originator_login; /* Login of same */
496extern uschar *originator_name; /* Full name of same */
497extern uid_t originator_uid; /* Uid of ditto */
498extern uschar *override_local_interfaces; /* Value of -oX argument */
499extern uschar *override_pid_file_path; /* Value of -oP argument */
500
501extern BOOL parse_allow_group; /* Allow group syntax */
502extern BOOL parse_found_group; /* In the middle of a group */
503extern uschar *percent_hack_domains; /* Local domains for which '% operates */
504extern uschar *pid_file_path; /* For writing daemon pids */
505extern uschar *pipelining_advertise_hosts; /* As it says */
cf8b11a5 506extern BOOL pipelining_enable; /* As it says */
059ec3d9
PH		 507extern BOOL preserve_message_logs; /* Save msglog files */
508extern uschar *primary_hostname; /* Primary name of this computer */
509extern BOOL print_topbitchars; /* Topbit chars are printing chars */
510extern uschar process_info[]; /* For SIGUSR1 output */
511extern uschar *process_log_path; /* Alternate path */
512extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
fffda43a
TK		 513extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
514extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
515extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
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PH		 516
517extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
518extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
519extern BOOL queue_2stage; /* Run queue in 2-stage manner */
520extern uschar *queue_domains; /* Queue these domains */
521extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
522extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
523extern BOOL queue_run_force; /* TRUE to force during queue run */
524extern BOOL queue_run_local; /* Local deliveries only in queue run */
525extern BOOL queue_running; /* TRUE for queue running process and */
526 /* immediate children */
527extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
528extern int queue_run_pipe; /* Pipe for synchronizing */
529extern int queue_interval; /* Queue running interval */
530extern BOOL queue_only; /* TRUE to disable immediate delivery */
531extern int queue_only_load; /* Max load before auto-queue */
8669f003 532extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
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PH		 533extern uschar *queue_only_file; /* Queue if file exists/not-exists */
534extern BOOL queue_only_override; /* Allow override from command line */
535extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
536extern BOOL queue_run_in_order; /* As opposed to random */
537extern int queue_run_max; /* Max queue runners */
538extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
539extern uschar *queue_smtp_domains; /* Ditto, for these domains */
540
541extern unsigned int random_seed; /* Seed for random numbers */
fe0dab11 542extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
870f6ba8
TF		 543extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
544extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
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PH		 545extern uschar *raw_active_hostname; /* Pre-expansion */
546extern uschar *raw_sender; /* Before rewriting */
547extern uschar **raw_recipients; /* Before rewriting */
548extern int raw_recipients_count;
549extern int rcpt_count; /* Count of RCPT commands in a message */
550extern int rcpt_fail_count; /* Those that got 5xx */
551extern int rcpt_defer_count; /* Those that got 4xx */
552extern gid_t real_gid; /* Real gid */
553extern uid_t real_uid; /* Real user running program */
554extern BOOL really_exim; /* FALSE in utilities */
555extern BOOL receive_call_bombout; /* Flag for crashing log */
556extern int receive_linecount; /* Mainly for BSMTP errors */
557extern int receive_messagecount; /* Mainly for BSMTP errors */
558extern int receive_timeout; /* For non-SMTP acceptance */
559extern int received_count; /* Count of Received: headers */
560extern uschar *received_for; /* For "for" field */
561extern uschar *received_header_text; /* Definition of Received: header */
562extern int received_headers_max; /* Max count of Received: headers */
563extern int received_time; /* Time the message was received */
564extern uschar *recipient_data; /* lookup data for recipients */
565extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
2c7db3f5 566extern uschar *recipient_verify_failure; /* What went wrong */
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PH		 567extern BOOL recipients_discarded; /* By an ACL */
568extern int recipients_list_max; /* Maximum number fitting in list */
569extern int recipients_max; /* Max permitted */
570extern int recipients_max_reject; /* If TRUE, reject whole message */
571extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
572extern const pcre *regex_check_dns_names; /* For DNS name checking */
573extern const pcre *regex_From; /* For recognizing "From_" lines */
f1513293 574extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
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PH		 575extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
576extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
a5bd321b 577extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
059ec3d9 578extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
8523533c
TK		 579#ifdef WITH_CONTENT_SCAN
580extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
581#endif
059ec3d9
PH		 582extern int remote_delivery_count; /* Number of remote addresses */
583extern int remote_max_parallel; /* Maximum parallel delivery */
584extern uschar *remote_sort_domains; /* Remote domain sorting order */
585extern retry_config *retries; /* Chain of retry config information */
586extern int retry_data_expire; /* When to expire retry data */
587extern int retry_interval_max; /* Absolute maximum */
588extern int retry_maximum_timeout; /* The maximum timeout */
589extern uschar *return_path; /* Return path for a message */
590extern BOOL return_path_remove; /* Remove return-path headers */
591extern int rewrite_existflags; /* Indicate which headers have rewrites */
592extern uschar *rfc1413_hosts; /* RFC hosts */
593extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
594/* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
595extern uid_t root_uid; /* The uid for root */
596extern router_info routers_available[];/* Vector of available routers */
597extern router_instance *routers; /* Chain of instantiated routers */
598extern router_instance router_defaults;/* Default values */
599extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
600extern ip_address_item *running_interfaces; /* Host's running interfaces */
601extern uschar *running_status; /* Flag string for testing */
602extern int runrc; /* rc from ${run} */
603
604extern uschar *search_error_message; /* Details of lookup problem */
605extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
606extern uschar *self_hostname; /* Self host after routing->directors */
607extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
2a3eea10 608extern uschar *sender_address_data; /* address_data from sender verify */
059ec3d9
PH		 609extern BOOL sender_address_forced; /* Set by -f */
610extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
611extern uschar *sender_data; /* lookup result for senders */
612extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
613extern uschar *sender_fullhost; /* Sender host name + address */
614extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
615extern uschar **sender_host_aliases; /* Points to list of alias names */
616extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
617extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
618extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
619extern uschar *sender_ident; /* Sender identity via RFC 1413 */
620extern BOOL sender_local; /* TRUE for local senders */
2fe1a124 621extern BOOL sender_name_forced; /* Set by -F */
870f6ba8
TF		 622extern uschar *sender_rate; /* Sender rate computed by ACL */
623extern uschar *sender_rate_limit; /* Configured rate limit */
624extern uschar *sender_rate_period; /* Configured smoothing period */
059ec3d9
PH		 625extern uschar *sender_rcvhost; /* Host data for Received: */
626extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
627extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
2c7db3f5 628extern uschar *sender_verify_failure; /* What went wrong */
059ec3d9
PH		 629extern address_item *sender_verified_list; /* Saved chain of sender verifies */
630extern address_item *sender_verified_failed; /* The one that caused denial */
41c7c167
PH		 631extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
632extern int sending_port; /* Port of outgoing interface */
059ec3d9
PH		 633extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
634extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
635extern int smtp_accept_count; /* Count of connections */
636extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
637extern int smtp_accept_max; /* Max SMTP connections */
638extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
639extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
640extern int smtp_accept_max_per_connection; /* Max msgs per connection */
641extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
642extern int smtp_accept_queue; /* Queue after so many connections */
643extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
644extern int smtp_accept_reserve; /* Reserve these SMTP connections */
645extern uschar *smtp_active_hostname; /* Hostname for this message */
646extern BOOL smtp_authenticated; /* Sending client has authenticated */
647extern uschar *smtp_banner; /* Banner string (to be expanded) */
648extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
b4ed4da0 649extern int smtp_ch_index; /* Index in smtp_connection_had */
3ee512ff
PH		 650extern uschar *smtp_cmd_argument; /* For all SMTP commands */
651extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
b4ed4da0
PH		 652extern time_t smtp_connection_start; /* Start time of SMTP connection */
653extern uschar smtp_connection_had[]; /* Recent SMTP commands */
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PH		 654extern int smtp_connect_backlog; /* Max backlog permitted */
655extern double smtp_delay_mail; /* Current MAIL delay */
656extern double smtp_delay_rcpt; /* Current RCPT delay */
657extern BOOL smtp_enforce_sync; /* Enforce sync rules */
658extern uschar *smtp_etrn_command; /* Command to run */
659extern BOOL smtp_etrn_serialize; /* Only one at once */
660extern FILE *smtp_in; /* Incoming SMTP input file */
661extern int smtp_load_reserve; /* Only from reserved if load > this */
662extern int smtp_mailcmd_count; /* Count of MAIL commands */
663extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
664extern int smtp_max_unknown_commands; /* As it says */
8f128379 665extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
059ec3d9
PH		 666extern FILE *smtp_out; /* Incoming SMTP output file */
667extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
668extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
669extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
670extern uschar *smtp_read_error; /* Message for SMTP input error */
671extern int smtp_receive_timeout; /* Applies to each received line */
672extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
673extern BOOL smtp_return_error_details; /* TRUE to return full info */
674extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
675extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
676extern int smtp_rlm_limit; /* Max delay */
677extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
678extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
679extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
680extern int smtp_rlr_limit; /* Max delay */
681extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
682extern BOOL smtp_use_pipelining; /* Global for passed connections */
683extern BOOL smtp_use_size; /* Global for passed connections */
8523533c
TK		 684
685#ifdef WITH_CONTENT_SCAN
686extern uschar *spamd_address; /* address for the spamassassin daemon */
687extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
688extern uschar *spam_report; /* the spamd report (multiline) */
689extern uschar *spam_score; /* the spam score (float) */
690extern uschar *spam_score_int; /* spam_score * 10 (int) */
691#endif
692#ifdef EXPERIMENTAL_SPF
693extern uschar *spf_header_comment; /* spf header comment */
8fe685ad 694extern uschar *spf_received; /* Received-SPF: header */
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TK		 695extern uschar *spf_result; /* spf result in string form */
696extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
697#endif
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PH		 698extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
699extern uschar *spool_directory; /* Name of spool directory */
8523533c
TK		 700#ifdef EXPERIMENTAL_SRS
701extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
702extern uschar *srs_db_address; /* SRS db address */
703extern uschar *srs_db_key; /* SRS db key */
384152a6
TK		 704extern int srs_hashlength; /* SRS hash length */
705extern int srs_hashmin; /* SRS minimum hash length */
706extern int srs_maxage; /* SRS max age */
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TK		 707extern uschar *srs_orig_sender; /* SRS original sender */
708extern uschar *srs_orig_recipient; /* SRS original recipient */
709extern uschar *srs_recipient; /* SRS recipient */
384152a6 710extern uschar *srs_secrets; /* SRS secrets list */
8523533c 711extern uschar *srs_status; /* SRS staus */
384152a6
TK		 712extern BOOL srs_usehash; /* SRS use hash flag */
713extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
8523533c 714#endif
38a0a95f 715extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
059ec3d9
PH		 716extern int string_datestamp_offset;/* After insertion by string_format */
717extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
718extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
719extern uschar *submission_domain; /* Domain for submission mode */
720extern BOOL submission_mode; /* Can be forced from ACL */
2fe1a124 721extern uschar *submission_name; /* User name set from ACL */
8800895a 722extern BOOL suppress_local_fixups; /* Can be forced from ACL */
059ec3d9
PH		 723extern BOOL synchronous_delivery; /* TRUE if -odi is set */
724extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
725extern int syslog_facility; /* As defined by Syslog.h */
726extern uschar *syslog_processname; /* 'ident' param to openlog() */
727extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
728extern uschar *system_filter; /* Name of system filter file */
729
730extern uschar *system_filter_directory_transport; /* Transports for the */
731extern uschar *system_filter_file_transport; /* system filter */
732extern uschar *system_filter_pipe_transport;
733extern uschar *system_filter_reply_transport;
734
735extern gid_t system_filter_gid; /* Gid for running system filter */
736extern BOOL system_filter_gid_set; /* TRUE if gid set */
737extern uid_t system_filter_uid; /* Uid for running system filter */
738extern BOOL system_filter_uid_set; /* TRUE if uid set */
739extern BOOL system_filtering; /* TRUE when running system filter */
740
741extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
8669f003 742extern int test_harness_load_avg; /* For use when testing */
059ec3d9
PH		 743extern int thismessage_size_limit; /* Limit for this message */
744extern int timeout_frozen_after; /* Max time to keep frozen messages */
745extern BOOL timestamps_utc; /* Use UTC for all times */
746extern int transport_count; /* Count of bytes transported */
747extern uschar **transport_filter_argv; /* For on-the-fly filtering */
748extern int transport_filter_timeout; /* Timeout for same */
2e2a30b4 749extern BOOL transport_filter_timed_out; /* True if it did */
059ec3d9
PH		 750
751extern transport_info transports_available[]; /* Vector of available transports */
752extern transport_instance *transports; /* Chain of instantiated transports */
753extern transport_instance transport_defaults; /* Default values */
754
755extern int transport_write_timeout;/* Set to time out individual writes */
756
757extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
758extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
759extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
760extern tree_node *tree_unusable; /* Tree of unusable addresses */
761
762extern BOOL trusted_caller; /* Caller is trusted */
763extern gid_t *trusted_groups; /* List of trusted groups */
764extern uid_t *trusted_users; /* List of trusted users */
765extern uschar *timezone_string; /* Required timezone setting */
766
767extern uschar *unknown_login; /* To use when login id unknown */
768extern uschar *unknown_username; /* Ditto */
769extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
770extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
771extern uschar *uucp_from_sender; /* For building the sender */
772
773extern uschar *warn_message_file; /* Template for warning messages */
774extern uschar *warnmsg_delay; /* String form of delay time */
775extern uschar *warnmsg_recipients; /* Recipients of warning message */
776extern BOOL write_rejectlog; /* Control of reject logging */
777
778extern uschar *version_copyright; /* Copyright notice */
779extern uschar *version_date; /* Date of compilation */
780extern uschar *version_cnumber; /* Compile number */
781extern uschar *version_string; /* Version string */
782
783extern int warning_count; /* Delay warnings sent for this msg */
784
785/* End of globals.h */
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