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Move OCSP out of EXPERIMENTAL
[exim.git] / src / src / globals.h
CommitLineData
059ec3d9
PH		 1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
5a66c31b 5/* Copyright (c) University of Cambridge 1995 - 2014 */
059ec3d9
PH		 6/* See the file NOTICE for conditions of use and distribution. */
7
8/* Almost all the global variables are defined together in this one header, so
9that they are easy to find. However, those that are visible during the
10compilation of the local_scan() function are defined separately in the
11local_scan.h header file. */
12
13/* First put any specials that are required for some operating systems. */
14
15#ifdef NEED_H_ERRNO
16extern int h_errno;
17#endif
18
cd59ab18
PP		 19/* We need to be careful about width of int and atomicity in signal handlers,
20especially with the rise of 64-bit systems breaking older assumptions. But
21sig_atomic_t comes from signal.h so can't go into mytypes.h without including
22signal support in local_scan, which seems precipitous. */
23typedef volatile sig_atomic_t SIGNAL_BOOL;
24
059ec3d9
PH		 25/* Now things that are present only when configured. */
26
27#ifdef EXIM_PERL
28extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */
29extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */
30extern BOOL opt_perl_started; /* Set once interpreter started */
31#endif
32
1a46a8c5
PH		 33#ifdef EXPAND_DLFUNC
34extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
35#endif
36
059ec3d9
PH		 37#ifdef LOOKUP_IBASE
38extern uschar *ibase_servers;
39#endif
40
41#ifdef LOOKUP_LDAP
bc19a55b
PP		 42extern uschar *eldap_ca_cert_dir; /* Directory with CA certificates */
43extern uschar *eldap_ca_cert_file; /* CA certificate file */
44extern uschar *eldap_cert_file; /* Certificate file */
45extern uschar *eldap_cert_key; /* Certificate key file */
46extern uschar *eldap_cipher_suite; /* Allowed cipher suite */
059ec3d9 47extern uschar *eldap_default_servers; /* List of default servers */
bc19a55b
PP		 48extern uschar *eldap_require_cert; /* Peer certificate checking strategy */
49extern BOOL eldap_start_tls; /* Use STARTTLS */
059ec3d9
PH		 50extern int eldap_version; /* LDAP version */
51#endif
52
53#ifdef LOOKUP_MYSQL
54extern uschar *mysql_servers; /* List of servers and connect info */
55#endif
56
57#ifdef LOOKUP_ORACLE
58extern uschar *oracle_servers; /* List of servers and connect info */
59#endif
60
61#ifdef LOOKUP_PGSQL
62extern uschar *pgsql_servers; /* List of servers and connect info */
63#endif
64
9bdd29ad
TL		 65#ifdef EXPERIMENTAL_REDIS
66extern uschar *redis_servers; /* List of servers and connect info */
67#endif
68
31480e42
PH		 69#ifdef LOOKUP_SQLITE
70extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
71#endif
72
059ec3d9
PH		 73#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
74extern BOOL move_frozen_messages; /* Get them out of the normal directory */
75#endif
76
77/* These variables are outside the #ifdef because it keeps the code less
78cluttered in several places (e.g. during logging) if we can always refer to
79them. Also, the tls_ variables are now always visible. */
80
817d9f57
JH		 81typedef struct {
82 int active; /* fd/socket when in a TLS session */
83 int bits; /* bits used in TLS session */
84 BOOL certificate_verified; /* Client certificate verified */
85 uschar *cipher; /* Cipher used */
86 BOOL on_connect; /* For older MTAs that don't STARTTLS */
87 uschar *on_connect_ports; /* Ports always tls-on-connect */
9d1c15ef
JH		 88 void *ourcert; /* Certificate we presented, binary */
89 void *peercert; /* Certificate of peer, binary */
817d9f57 90 uschar *peerdn; /* DN from peer */
817d9f57 91 uschar *sni; /* Server Name Indication */
44662487
JH		 92 enum {
93 OCSP_NOT_REQ=0, /* not requested */
94 OCSP_NOT_RESP, /* no response to request */
018058b2
JH		 95 OCSP_VFY_NOT_TRIED, /* response not verified */
96 OCSP_FAILED, /* verify failed */
44662487
JH		 97 OCSP_VFIED /* verified */
98 } ocsp; /* Stapled OCSP status */
817d9f57
JH		 99} tls_support;
100extern tls_support tls_in;
101extern tls_support tls_out;
059ec3d9
PH		 102
103#ifdef SUPPORT_TLS
e6060e2c 104extern BOOL gnutls_compat_mode; /* Less security, more compatibility */
2519e60d 105extern BOOL gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */
83da1223
PH		 106extern uschar *gnutls_require_mac; /* So some can be avoided */
107extern uschar *gnutls_require_kx; /* So some can be avoided */
108extern uschar *gnutls_require_proto; /* So some can be avoided */
77bb000f 109extern uschar *openssl_options; /* OpenSSL compatibility options */
059ec3d9
PH		 110extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
111extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
112extern uschar *tls_certificate; /* Certificate file */
44bbabb5 113extern uschar *tls_channelbinding_b64; /* string of base64 channel binding */
059ec3d9 114extern uschar *tls_crl; /* CRL File */
3375e053 115extern int tls_dh_max_bits; /* don't accept higher lib suggestions */
059ec3d9 116extern uschar *tls_dhparam; /* DH param file */
f2de3a33 117#ifndef DISABLE_OCSP
3f7eeb86
PP		 118extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
119#endif
059ec3d9
PH		 120extern BOOL tls_offered; /* Server offered TLS */
121extern uschar *tls_privatekey; /* Private key file */
122extern BOOL tls_remember_esmtp; /* For YAEB */
123extern uschar *tls_require_ciphers; /* So some can be avoided */
124extern uschar *tls_try_verify_hosts; /* Optional client verification */
125extern uschar *tls_verify_certificates;/* Path for certificates to check */
126extern uschar *tls_verify_hosts; /* Mandatory client verification */
127#endif
128
6c1c3d1d
WB		 129#ifdef EXPERIMENTAL_DSN
130extern uschar *dsn_envid; /* DSN envid string */
131extern int dsn_ret; /* DSN ret type*/
132extern const pcre *regex_DSN; /* For recognizing DSN settings */
133extern BOOL smtp_use_dsn; /* Global for passed connections */
134extern uschar *dsn_advertise_hosts; /* host for which TLS is advertised */
135#endif
059ec3d9
PH		 136
137/* Input-reading functions for messages, so we can use special ones for
138incoming TCP/IP. */
139
140extern int (*receive_getc)(void);
141extern int (*receive_ungetc)(int);
142extern int (*receive_feof)(void);
143extern int (*receive_ferror)(void);
58eb016e 144extern BOOL (*receive_smtp_buffered)(void);
059ec3d9
PH		 145
146
147/* For clearing, saving, restoring address expansion variables. We have to have
148the size of this vector set explicitly, because it is referenced from more than
149one module. */
150
151extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
152
153/* General global variables */
154
155extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
3c0a92dc 156extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
71fafd95 157extern header_line *acl_added_headers; /* Headers added by an ACL */
059ec3d9 158extern tree_node *acl_anchor; /* Tree of named ACLs */
525239c1
JH		 159extern uschar *acl_arg[9]; /* Argument to ACL call */
160extern int acl_narg; /* Number of arguments to ACL call */
059ec3d9 161extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
54cdb463
PH		 162#ifdef WITH_CONTENT_SCAN
163extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
164#endif
45b91596 165extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
e7568d51 166extern uschar *acl_removed_headers; /* Headers deleted by an ACL */
059ec3d9
PH		 167extern uschar *acl_smtp_auth; /* ACL run for AUTH */
168extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
169extern uschar *acl_smtp_data; /* ACL run after DATA received */
8ccd00b1 170#ifndef DISABLE_PRDR
fd98a5c6
JH		 171extern uschar *acl_smtp_data_prdr; /* ACL run after DATA received if in PRDR mode*/
172const extern pcre *regex_PRDR; /* For recognizing PRDR settings */
173#endif
80a47a2c
TK		 174#ifndef DISABLE_DKIM
175extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */
176#endif
059ec3d9
PH		 177extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
178extern uschar *acl_smtp_expn; /* ACL run for EXPN */
179extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
180extern uschar *acl_smtp_mail; /* ACL run for MAIL */
181extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
8523533c
TK		 182#ifdef WITH_CONTENT_SCAN
183extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
184#endif
8f128379 185extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
059ec3d9
PH		 186extern uschar *acl_smtp_predata; /* ACL run for DATA command */
187extern uschar *acl_smtp_quit; /* ACL run for QUIT */
188extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
189extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
190extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
191extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
38a0a95f
PH		 192extern tree_node *acl_var_c; /* ACL connection variables */
193extern tree_node *acl_var_m; /* ACL messsage variables */
059ec3d9 194extern uschar *acl_verify_message; /* User message for verify failure */
059ec3d9 195extern string_item *acl_warn_logged; /* Logged lines */
a5bd321b 196extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
059ec3d9 197extern uschar *acl_wherenames[]; /* Names for messages */
69358f02
PH		 198extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
199extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
059ec3d9
PH		 200extern address_item *addr_duplicate; /* Duplicate address list */
201extern address_item address_defaults; /* Default data for address item */
202extern uschar *address_file; /* Name of file when delivering to one */
203extern uschar *address_pipe; /* Pipe command when delivering to one */
204extern BOOL address_test_mode; /* True for -bt */
205extern tree_node *addresslist_anchor; /* Tree of defined address lists */
206extern int addresslist_count; /* Number defined */
207extern gid_t *admin_groups; /* List of admin groups */
208extern BOOL admin_user; /* True if caller can do admin */
c46782ef 209extern BOOL allow_auth_unadvertised;/* As it says */
059ec3d9
PH		 210extern BOOL allow_domain_literals; /* As it says */
211extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
212extern BOOL allow_unqualified_recipient; /* As it says */
213extern BOOL allow_unqualified_sender; /* Ditto */
214extern BOOL allow_utf8_domains; /* For experimenting */
2d07a215 215extern uschar *authenticated_fail_id; /* ID that failed authentication */
059ec3d9
PH		 216extern uschar *authenticated_id; /* ID that was authenticated */
217extern uschar *authenticated_sender; /* From AUTH on MAIL */
218extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
219extern uschar *auth_advertise_hosts; /* Only advertise to these */
220extern auth_info auths_available[]; /* Vector of available auth mechanisms */
221extern auth_instance *auths; /* Chain of instantiated auths */
222extern auth_instance auth_defaults; /* Default values */
223extern uschar *auth_defer_msg; /* Error message for log */
224extern uschar *auth_defer_user_msg; /* Error message for user */
f78eb7c6 225extern uschar *auth_vars[]; /* $authn variables */
059ec3d9 226extern int auto_thaw; /* Auto-thaw interval */
8523533c 227#ifdef WITH_CONTENT_SCAN
9e949f00 228extern BOOL av_failed; /* TRUE if the AV process failed */
8523533c
TK		 229extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
230#endif
059ec3d9
PH		 231
232extern BOOL background_daemon; /* Set FALSE to keep in foreground */
233extern uschar *base62_chars; /* Table of base-62 characters */
234extern uschar *bi_command; /* Command for -bi option */
235extern uschar *big_buffer; /* Used for various temp things */
236extern int big_buffer_size; /* Current size (can expand) */
8523533c
TK		 237#ifdef EXPERIMENTAL_BRIGHTMAIL
238extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
239extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
240extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
241extern uschar *bmi_config_file; /* Brightmail config file */
242extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
243extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
244extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
245#endif
059ec3d9
PH		 246extern uschar *bounce_message_file; /* Template file */
247extern uschar *bounce_message_text; /* One-liner */
248extern uschar *bounce_recipient; /* When writing an errmsg */
249extern BOOL bounce_return_body; /* Include body in returned message */
250extern BOOL bounce_return_message; /* Include message in bounce */
251extern int bounce_return_size_limit; /* Max amount to return */
252extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
253extern int bsmtp_transaction_linecount; /* Start of last transaction */
254
255extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
256extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
257extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
258extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
259extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
260extern uschar *check_dns_names_pattern;/* Regex for syntax check */
261extern int check_log_inodes; /* Minimum for message acceptance */
262extern int check_log_space; /* Minimum for message acceptance */
a0d6ba8a 263extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
059ec3d9
PH		 264extern int check_spool_inodes; /* Minimum for message acceptance */
265extern int check_spool_space; /* Minimum for message acceptance */
c8e2fc1e
JH		 266extern uschar *client_authenticator; /* Authenticator name used for smtp delivery */
267extern uschar *client_authenticated_id; /* "login" name used for SMTP AUTH */
268extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
059ec3d9
PH		 269extern int clmacro_count; /* Number of command line macros */
270extern uschar *clmacros[]; /* Copy of them, for re-exec */
271extern int connection_max_messages;/* Max down one SMTP connection */
272extern BOOL config_changed; /* True if -C used */
273extern FILE *config_file; /* Configuration file */
274extern uschar *config_filename; /* Configuration file name */
35edf2ff
PH		 275#ifdef CONFIGURE_GROUP
276extern gid_t config_gid; /* Additional group owner */
277#endif
059ec3d9
PH		 278extern int config_lineno; /* Line number */
279extern uschar *config_main_filelist; /* List of possible config files */
280extern uschar *config_main_filename; /* File name actually used */
281#ifdef CONFIGURE_OWNER
282extern uid_t config_uid; /* Additional owner */
283#endif
284extern uschar *continue_hostname; /* Host for continued delivery */
285extern uschar *continue_host_address; /* IP address for ditto */
286extern BOOL continue_more; /* Flag more addresses waiting */
287extern int continue_sequence; /* Sequence num for continued delivery */
288extern uschar *continue_transport; /* Transport for continued delivery */
289
e5a9dba6 290extern uschar *csa_status; /* Client SMTP Authorization result */
e4bdf652
JH		 291extern BOOL cutthrough_delivery; /* Deliver in foreground */
292extern int cutthrough_fd; /* Connection for ditto */
e5a9dba6 293
059ec3d9
PH		 294extern BOOL daemon_listen; /* True if listening required */
295extern uschar *daemon_smtp_port; /* Can be a list of ports */
4aee0225
PH		 296extern int daemon_startup_retries; /* Number of times to retry */
297extern int daemon_startup_sleep; /* Sleep between retries */
6a8f9482
TK		 298
299#ifdef EXPERIMENTAL_DCC
300extern BOOL dcc_direct_add_header; /* directly add header */
301extern uschar *dcc_header; /* dcc header */
302extern uschar *dcc_result; /* dcc result */
303extern uschar *dccifd_address; /* address of the dccifd daemon */
304extern uschar *dccifd_options; /* options for the dccifd daemon */
305#endif
306
3d235903 307extern BOOL debug_daemon; /* Debug the daemon process only */
059ec3d9
PH		 308extern int debug_fd; /* The fd for debug_file */
309extern FILE *debug_file; /* Where to write debugging info */
310extern bit_table debug_options[]; /* Table of debug options */
311extern int debug_options_count; /* Size of table */
312extern int delay_warning[]; /* Times between warnings */
313extern uschar *delay_warning_condition; /* Condition string for warnings */
314extern BOOL delivery_date_remove; /* Remove delivery-date headers */
315
316extern uschar *deliver_address_data; /* Arbitrary data for an address */
317extern int deliver_datafile; /* FD for data part of message */
318extern uschar *deliver_domain; /* The local domain for delivery */
319extern uschar *deliver_domain_data; /* From domain lookup */
320extern uschar *deliver_domain_orig; /* The original local domain for delivery */
321extern uschar *deliver_domain_parent; /* The parent domain for delivery */
322extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
323extern BOOL deliver_firsttime; /* True for first delivery attempt */
324extern BOOL deliver_force; /* TRUE if delivery was forced */
325extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
326extern int deliver_frozen_at; /* Time of freezing */
327extern uschar *deliver_home; /* Home directory for pipes */
328extern uschar *deliver_host; /* (First) host for routed local deliveries */
329 /* Remote host for filter */
330extern uschar *deliver_host_address; /* Address for remote delivery filter */
331extern uschar *deliver_in_buffer; /* Buffer for copying file */
332extern ino_t deliver_inode; /* Inode for appendfile */
333extern uschar *deliver_localpart; /* The local part for delivery */
334extern uschar *deliver_localpart_data; /* From local part lookup */
335extern uschar *deliver_localpart_orig; /* The original local part for delivery */
336extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
337extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
338extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
339extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
340extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
341extern uschar *deliver_out_buffer; /* Buffer for copying file */
342extern int deliver_queue_load_max; /* Different value for queue running */
343extern address_item *deliver_recipients; /* Current set of addresses */
344extern uschar *deliver_selectstring; /* For selecting by recipient */
345extern BOOL deliver_selectstring_regex; /* String is regex */
346extern uschar *deliver_selectstring_sender; /* For selecting by sender */
347extern BOOL deliver_selectstring_sender_regex; /* String is regex */
8523533c
TK		 348#ifdef WITH_OLD_DEMIME
349extern int demime_errorlevel; /* Severity of MIME error */
350extern int demime_ok; /* Nonzero if message has been demimed */
351extern uschar *demime_reason; /* Reason for broken MIME container */
352#endif
4c590bd1 353extern BOOL disable_callout_flush; /* Don't flush before callouts */
047bdd8c 354extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
54fc8428
PH		 355#ifdef ENABLE_DISABLE_FSYNC
356extern BOOL disable_fsync; /* Not for normal use */
357#endif
7e66e54d 358extern BOOL disable_ipv6; /* Don't do any IPv6 things */
059ec3d9
PH		 359extern BOOL disable_logging; /* Disables log writing when TRUE */
360
80a47a2c 361#ifndef DISABLE_DKIM
2df588c9 362extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
9e5d6b55 363extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
80a47a2c
TK		 364extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
365extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
366extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
367extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
368extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
f7572e5a 369#endif
4840604e 370#ifdef EXPERIMENTAL_DMARC
4a8ce2d8 371extern BOOL dmarc_has_been_checked; /* Global variable to check if test has been called yet */
4840604e 372extern uschar *dmarc_ar_header; /* Expansion variable, suggested header for dmarc auth results */
8c8b8274 373extern uschar *dmarc_domain_policy; /* Expansion for declared policy of used domain */
4840604e
TL		 374extern uschar *dmarc_forensic_sender; /* Set sender address for forensic reports */
375extern uschar *dmarc_history_file; /* Expansion variable, file to store dmarc results */
376extern uschar *dmarc_status; /* Expansion variable, one word value */
377extern uschar *dmarc_status_text; /* Expansion variable, human readable value */
378extern uschar *dmarc_tld_file; /* Mozilla TLDs text file */
379extern uschar *dmarc_used_domain; /* Expansion variable, domain libopendmarc chose for DMARC policy lookup */
380extern BOOL dmarc_disable_verify; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */
381extern BOOL dmarc_enable_forensic; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */
382#endif
f7572e5a 383
059ec3d9 384extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
e5a9dba6
PH		 385extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
386extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
059ec3d9
PH		 387extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
388extern int dns_retrans; /* Retransmission time setting */
389extern int dns_retry; /* Number of retries */
0fbd9bff 390extern int dns_dnssec_ok; /* When constructing DNS query, set DO flag */
e97d1f08 391extern int dns_use_edns0; /* Coerce EDNS0 support on/off in resolver. */
059ec3d9 392extern uschar *dnslist_domain; /* DNS (black) list domain */
93655c46 393extern uschar *dnslist_matched; /* DNS (black) list matched key */
059ec3d9
PH		 394extern uschar *dnslist_text; /* DNS (black) list text message */
395extern uschar *dnslist_value; /* DNS (black) list IP address */
396extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
397extern int domainlist_count; /* Number defined */
398extern BOOL dont_deliver; /* TRUE for -N option */
399extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
400
401/* This option is now a no-opt, retained for compatibility */
402extern BOOL drop_cr; /* For broken local MUAs */
403
0e22dfd1
PH		 404extern uschar *dsn_from; /* From: string for DSNs */
405
059ec3d9
PH		 406extern BOOL enable_dollar_recipients; /* Make $recipients available */
407extern int envelope_to_remove; /* Remove envelope_to_headers */
408extern int errno_quota; /* Quota errno in this OS */
409extern int error_handling; /* Error handling style */
410extern uschar *errors_copy; /* For taking copies of errors */
411extern uschar *errors_reply_to; /* Reply-to for error messages */
412extern int errors_sender_rc; /* Return after message to sender*/
413extern gid_t exim_gid; /* To be used with exim_uid */
414extern BOOL exim_gid_set; /* TRUE if exim_gid set */
415extern uschar *exim_path; /* Path to exec exim */
98a90c36 416extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
059ec3d9
PH		 417extern uid_t exim_uid; /* Non-root uid for exim */
418extern BOOL exim_uid_set; /* TRUE if exim_uid set */
419extern int expand_forbid; /* RDO flags for forbidding things */
420extern int expand_nlength[]; /* Lengths of numbered strings */
421extern int expand_nmax; /* Max numerical value */
422extern uschar *expand_nstring[]; /* Numbered strings */
423extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
424extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
425extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
426
29aba418
TF		 427extern int fake_response; /* Fake FAIL or DEFER response to data */
428extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
059ec3d9
PH		 429extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
430extern BOOL filter_running; /* TRUE while running a filter */
431extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
f05da2e8
PH		 432extern int filter_test; /* Filter test type */
433extern uschar *filter_test_sfile; /* System filter test file */
434extern uschar *filter_test_ufile; /* User filter test file */
059ec3d9
PH		 435extern uschar *filter_thisaddress; /* For address looping */
436extern int finduser_retries; /* Retry count for getpwnam() */
437extern uid_t fixed_never_users[]; /* Can't be overridden */
8523533c
TK		 438#ifdef WITH_OLD_DEMIME
439extern uschar *found_extension; /* demime acl condition: file extension found */
440#endif
059ec3d9 441extern uschar *freeze_tell; /* Message on (some) freezings */
6a3f1455 442extern uschar *freeze_tell_config; /* The configured setting */
059ec3d9
PH		 443extern uschar *fudged_queue_times; /* For use in test harness */
444
445extern uschar *gecos_name; /* To be expanded when pattern matches */
446extern uschar *gecos_pattern; /* Pattern to match */
447extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
448
449extern int header_insert_maxlen; /* Max for inserting headers */
450extern int header_maxsize; /* Max total length for header */
451extern int header_line_maxsize; /* Max for an individual line */
452extern header_name header_names[]; /* Table of header names */
453extern int header_names_size; /* Number of entries */
454extern BOOL header_rewritten; /* TRUE if header changed by router */
455extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
456extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
457extern uschar *helo_lookup_domains; /* If these given, lookup host name */
458extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
459extern BOOL helo_verified; /* True if HELO verified */
d7b47fd0 460extern BOOL helo_verify_failed; /* True if attempt failed */
059ec3d9 461extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
1ba28e2b 462extern const uschar *hex_digits; /* Used in several places */
059ec3d9
PH		 463extern uschar *hold_domains; /* Hold up deliveries to these */
464extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
465extern BOOL host_checking_callout; /* TRUE if real callout wanted */
466extern uschar *host_data; /* Obtained from lookup in ACL */
467extern uschar *host_lookup; /* For which IP addresses are always looked up */
b08b24c8 468extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
059ec3d9
PH		 469extern BOOL host_lookup_failed; /* TRUE if lookup failed */
470extern uschar *host_lookup_order; /* Order of host lookup types */
471extern uschar *host_lookup_msg; /* Text for why it failed */
472extern int host_number; /* For sharing spools */
473extern uschar *host_number_string; /* For expanding */
474extern uschar *host_reject_connection; /* Reject these hosts */
475extern tree_node *hostlist_anchor; /* Tree of defined host lists */
476extern int hostlist_count; /* Number defined */
477extern uschar *hosts_connection_nolog; /* Limits the logging option */
478extern uschar *hosts_treat_as_local; /* For routing */
479
480extern int ignore_bounce_errors_after; /* Keep them for this time. */
481extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
482extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
9ee44efb
PP		 483extern BOOL inetd_wait_mode; /* Whether running in inetd wait mode */
484extern int inetd_wait_timeout; /* Timeout for inetd wait mode */
059ec3d9 485extern BOOL is_inetd; /* True for inetd calls */
0ce9abe6 486extern uschar *iterate_item; /* Item from iterate list */
059ec3d9
PH		 487
488extern int journal_fd; /* Fd for journal file */
489
490extern int keep_malformed; /* Time to keep malformed messages */
491
492extern uschar *eldap_dn; /* Where LDAP DNs are left */
493extern int load_average; /* Most recently read load average */
494extern BOOL local_error_message; /* True if handling one of these */
69358f02 495extern BOOL local_from_check; /* For adding Sender: (global value) */
059ec3d9
PH		 496extern uschar *local_from_prefix; /* Permitted prefixes */
497extern uschar *local_from_suffix; /* Permitted suffixes */
498extern uschar *local_interfaces; /* For forcing specific interfaces */
499extern uschar *local_scan_data; /* Text returned by local_scan() */
500extern optionlist local_scan_options[];/* Option list for local_scan() */
501extern int local_scan_options_count; /* Size of the list */
502extern int local_scan_timeout; /* Timeout for local_scan() */
503extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
504extern gid_t local_user_gid; /* As it says; may be set in routers */
505extern uid_t local_user_uid; /* As it says; may be set in routers */
506extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
507extern int localpartlist_count; /* Number defined */
508extern uschar *log_buffer; /* For constructing log entries */
509extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
510extern uschar *log_file_path; /* If unset, use default */
511extern bit_table log_options[]; /* Table of options */
512extern int log_options_count; /* Size of table */
6ea85e9a 513extern int log_reject_target; /* Target log for ACL rejections */
059ec3d9
PH		 514extern uschar *log_selector_string; /* As supplied in the config */
515extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
516extern BOOL log_testing_mode; /* TRUE in various testing modes */
517extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
6ea85e9a 518extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
059ec3d9 519extern uschar *login_sender_address; /* The actual sender address */
e6d225ae 520extern lookup_info **lookup_list; /* Array of pointers to available lookups */
059ec3d9 521extern int lookup_list_count; /* Number of entries in the list */
4e0983dc 522extern uschar *lookup_dnssec_authenticated; /* AD status of dns lookup */
059ec3d9
PH		 523extern int lookup_open_max; /* Max lookup files to cache */
524extern uschar *lookup_value; /* Value looked up from file */
525
526extern macro_item *macros; /* Configuration macros */
527extern uschar *mailstore_basename; /* For mailstore deliveries */
8523533c
TK		 528#ifdef WITH_CONTENT_SCAN
529extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
530#endif
d677b2f2 531extern int max_received_linelength;/* What it says */
059ec3d9
PH		 532extern int max_username_length; /* For systems with broken getpwnam() */
533extern int message_age; /* In seconds */
534extern uschar *message_body; /* Start of message body for filter */
535extern uschar *message_body_end; /* End of message body for filter */
ddea74fa 536extern BOOL message_body_newlines; /* FALSE => remove newlines */
059ec3d9
PH		 537extern int message_body_size; /* Sic */
538extern int message_body_visible; /* Amount visible in message_body */
539extern int message_ended; /* State of message reading and how ended */
540extern uschar *message_headers; /* When built */
541extern uschar message_id_option[]; /* -E<message-id> for use as option */
542extern uschar *message_id_external; /* External form of following */
543extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
544extern uschar *message_id_text; /* Expanded to form message_id */
545extern struct timeval message_id_tv; /* Time used to create last message_id */
546extern int message_linecount; /* As it says */
547extern BOOL message_logs; /* TRUE to write message logs */
548extern int message_size; /* Size of message */
549extern uschar *message_size_limit; /* As it says */
550extern uschar message_subdir[]; /* Subdirectory for messages */
551extern uschar *message_reference; /* Reference for error messages */
8523533c
TK		 552
553/* MIME ACL expandables */
554#ifdef WITH_CONTENT_SCAN
555extern int mime_anomaly_level;
1ba28e2b 556extern const uschar *mime_anomaly_text;
8523533c
TK		 557extern uschar *mime_boundary;
558extern uschar *mime_charset;
559extern uschar *mime_content_description;
560extern uschar *mime_content_disposition;
561extern uschar *mime_content_id;
562extern unsigned int mime_content_size;
563extern uschar *mime_content_transfer_encoding;
564extern uschar *mime_content_type;
565extern uschar *mime_decoded_filename;
566extern uschar *mime_filename;
567extern int mime_is_multipart;
568extern int mime_is_coverletter;
569extern int mime_is_rfc822;
570extern int mime_part_count;
571#endif
572
059ec3d9
PH		 573extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
574
575extern uid_t *never_users; /* List of uids never to be used */
8523533c
TK		 576#ifdef WITH_CONTENT_SCAN
577extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
578#endif
059ec3d9
PH		 579extern BOOL no_multiline_responses; /* For broken clients */
580
581extern optionlist optionlist_auths[]; /* These option lists are made */
582extern int optionlist_auths_size; /* global so that readconf can */
583extern optionlist optionlist_routers[]; /* see them for printing out */
584extern int optionlist_routers_size; /* the options. */
585extern optionlist optionlist_transports[];
586extern int optionlist_transports_size;
587
588extern uid_t original_euid; /* Original effective uid */
589extern gid_t originator_gid; /* Gid of whoever wrote spool file */
590extern uschar *originator_login; /* Login of same */
591extern uschar *originator_name; /* Full name of same */
592extern uid_t originator_uid; /* Uid of ditto */
593extern uschar *override_local_interfaces; /* Value of -oX argument */
594extern uschar *override_pid_file_path; /* Value of -oP argument */
595
596extern BOOL parse_allow_group; /* Allow group syntax */
597extern BOOL parse_found_group; /* In the middle of a group */
598extern uschar *percent_hack_domains; /* Local domains for which '% operates */
599extern uschar *pid_file_path; /* For writing daemon pids */
600extern uschar *pipelining_advertise_hosts; /* As it says */
cf8b11a5 601extern BOOL pipelining_enable; /* As it says */
8ccd00b1 602#ifndef DISABLE_PRDR
fd98a5c6
JH		 603extern BOOL prdr_enable; /* As it says */
604extern BOOL prdr_requested; /* Connecting mail server wants PRDR */
605#endif
059ec3d9
PH		 606extern BOOL preserve_message_logs; /* Save msglog files */
607extern uschar *primary_hostname; /* Primary name of this computer */
608extern BOOL print_topbitchars; /* Topbit chars are printing chars */
609extern uschar process_info[]; /* For SIGUSR1 output */
921b12ca 610extern int process_info_len;
059ec3d9
PH		 611extern uschar *process_log_path; /* Alternate path */
612extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
a3c86431
TL		 613
614#ifdef EXPERIMENTAL_PROXY
eb57651e
TL		 615extern uschar *proxy_host_address; /* IP of host being proxied */
616extern int proxy_host_port; /* Port of host being proxied */
a3c86431
TL		 617extern uschar *proxy_required_hosts; /* Hostlist which (require) use proxy protocol */
618extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */
619extern BOOL proxy_session_failed; /* TRUE if required proxy negotiation failed */
eb57651e
TL		 620extern uschar *proxy_target_address; /* IP of proxy server inbound */
621extern int proxy_target_port; /* Port of proxy server inbound */
a3c86431
TL		 622#endif
623
fffda43a
TK		 624extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
625extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
626extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
059ec3d9
PH		 627
628extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
629extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
630extern BOOL queue_2stage; /* Run queue in 2-stage manner */
631extern uschar *queue_domains; /* Queue these domains */
632extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
633extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
634extern BOOL queue_run_force; /* TRUE to force during queue run */
635extern BOOL queue_run_local; /* Local deliveries only in queue run */
636extern BOOL queue_running; /* TRUE for queue running process and */
637 /* immediate children */
638extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
639extern int queue_run_pipe; /* Pipe for synchronizing */
640extern int queue_interval; /* Queue running interval */
641extern BOOL queue_only; /* TRUE to disable immediate delivery */
642extern int queue_only_load; /* Max load before auto-queue */
8669f003 643extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
059ec3d9
PH		 644extern uschar *queue_only_file; /* Queue if file exists/not-exists */
645extern BOOL queue_only_override; /* Allow override from command line */
646extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
647extern BOOL queue_run_in_order; /* As opposed to random */
648extern int queue_run_max; /* Max queue runners */
649extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
650extern uschar *queue_smtp_domains; /* Ditto, for these domains */
651
652extern unsigned int random_seed; /* Seed for random numbers */
fe0dab11 653extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
870f6ba8
TF		 654extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
655extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
059ec3d9
PH		 656extern uschar *raw_active_hostname; /* Pre-expansion */
657extern uschar *raw_sender; /* Before rewriting */
658extern uschar **raw_recipients; /* Before rewriting */
659extern int raw_recipients_count;
660extern int rcpt_count; /* Count of RCPT commands in a message */
661extern int rcpt_fail_count; /* Those that got 5xx */
662extern int rcpt_defer_count; /* Those that got 4xx */
663extern gid_t real_gid; /* Real gid */
664extern uid_t real_uid; /* Real user running program */
665extern BOOL really_exim; /* FALSE in utilities */
666extern BOOL receive_call_bombout; /* Flag for crashing log */
667extern int receive_linecount; /* Mainly for BSMTP errors */
668extern int receive_messagecount; /* Mainly for BSMTP errors */
669extern int receive_timeout; /* For non-SMTP acceptance */
670extern int received_count; /* Count of Received: headers */
671extern uschar *received_for; /* For "for" field */
672extern uschar *received_header_text; /* Definition of Received: header */
673extern int received_headers_max; /* Max count of Received: headers */
674extern int received_time; /* Time the message was received */
675extern uschar *recipient_data; /* lookup data for recipients */
676extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
2c7db3f5 677extern uschar *recipient_verify_failure; /* What went wrong */
059ec3d9
PH		 678extern BOOL recipients_discarded; /* By an ACL */
679extern int recipients_list_max; /* Maximum number fitting in list */
680extern int recipients_max; /* Max permitted */
681extern int recipients_max_reject; /* If TRUE, reject whole message */
682extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
683extern const pcre *regex_check_dns_names; /* For DNS name checking */
684extern const pcre *regex_From; /* For recognizing "From_" lines */
f1513293 685extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
059ec3d9
PH		 686extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
687extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
a5bd321b 688extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
059ec3d9 689extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
a7cbbf50
PP		 690#ifdef WHITELIST_D_MACROS
691extern const pcre *regex_whitelisted_macro; /* For -D macro values */
692#endif
8523533c
TK		 693#ifdef WITH_CONTENT_SCAN
694extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
695#endif
059ec3d9
PH		 696extern int remote_delivery_count; /* Number of remote addresses */
697extern int remote_max_parallel; /* Maximum parallel delivery */
698extern uschar *remote_sort_domains; /* Remote domain sorting order */
699extern retry_config *retries; /* Chain of retry config information */
700extern int retry_data_expire; /* When to expire retry data */
701extern int retry_interval_max; /* Absolute maximum */
702extern int retry_maximum_timeout; /* The maximum timeout */
703extern uschar *return_path; /* Return path for a message */
704extern BOOL return_path_remove; /* Remove return-path headers */
705extern int rewrite_existflags; /* Indicate which headers have rewrites */
706extern uschar *rfc1413_hosts; /* RFC hosts */
707extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
708/* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
c1d94452 709extern uid_t root_gid; /* The gid for root */
059ec3d9
PH		 710extern uid_t root_uid; /* The uid for root */
711extern router_info routers_available[];/* Vector of available routers */
712extern router_instance *routers; /* Chain of instantiated routers */
713extern router_instance router_defaults;/* Default values */
181d9bf8 714extern uschar *router_name; /* Name of router last started */
059ec3d9
PH		 715extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
716extern ip_address_item *running_interfaces; /* Host's running interfaces */
717extern uschar *running_status; /* Flag string for testing */
718extern int runrc; /* rc from ${run} */
719
720extern uschar *search_error_message; /* Details of lookup problem */
721extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
722extern uschar *self_hostname; /* Self host after routing->directors */
723extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
2a3eea10 724extern uschar *sender_address_data; /* address_data from sender verify */
059ec3d9
PH		 725extern BOOL sender_address_forced; /* Set by -f */
726extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
727extern uschar *sender_data; /* lookup result for senders */
728extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
729extern uschar *sender_fullhost; /* Sender host name + address */
730extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
731extern uschar **sender_host_aliases; /* Points to list of alias names */
732extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
1f4a55da 733extern BOOL sender_host_dnssec; /* true if sender_host_name verified in DNSSEC */
059ec3d9
PH		 734extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
735extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
736extern uschar *sender_ident; /* Sender identity via RFC 1413 */
737extern BOOL sender_local; /* TRUE for local senders */
2fe1a124 738extern BOOL sender_name_forced; /* Set by -F */
870f6ba8
TF		 739extern uschar *sender_rate; /* Sender rate computed by ACL */
740extern uschar *sender_rate_limit; /* Configured rate limit */
741extern uschar *sender_rate_period; /* Configured smoothing period */
059ec3d9
PH		 742extern uschar *sender_rcvhost; /* Host data for Received: */
743extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
744extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
2c7db3f5 745extern uschar *sender_verify_failure; /* What went wrong */
059ec3d9
PH		 746extern address_item *sender_verified_list; /* Saved chain of sender verifies */
747extern address_item *sender_verified_failed; /* The one that caused denial */
41c7c167
PH		 748extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
749extern int sending_port; /* Port of outgoing interface */
cd59ab18 750extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */
059ec3d9
PH		 751extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
752extern int smtp_accept_count; /* Count of connections */
753extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
754extern int smtp_accept_max; /* Max SMTP connections */
755extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
756extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
757extern int smtp_accept_max_per_connection; /* Max msgs per connection */
758extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
759extern int smtp_accept_queue; /* Queue after so many connections */
760extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
761extern int smtp_accept_reserve; /* Reserve these SMTP connections */
762extern uschar *smtp_active_hostname; /* Hostname for this message */
763extern BOOL smtp_authenticated; /* Sending client has authenticated */
764extern uschar *smtp_banner; /* Banner string (to be expanded) */
765extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
b4ed4da0 766extern int smtp_ch_index; /* Index in smtp_connection_had */
3ee512ff
PH		 767extern uschar *smtp_cmd_argument; /* For all SMTP commands */
768extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
b4ed4da0
PH		 769extern time_t smtp_connection_start; /* Start time of SMTP connection */
770extern uschar smtp_connection_had[]; /* Recent SMTP commands */
059ec3d9
PH		 771extern int smtp_connect_backlog; /* Max backlog permitted */
772extern double smtp_delay_mail; /* Current MAIL delay */
773extern double smtp_delay_rcpt; /* Current RCPT delay */
774extern BOOL smtp_enforce_sync; /* Enforce sync rules */
775extern uschar *smtp_etrn_command; /* Command to run */
776extern BOOL smtp_etrn_serialize; /* Only one at once */
777extern FILE *smtp_in; /* Incoming SMTP input file */
778extern int smtp_load_reserve; /* Only from reserved if load > this */
779extern int smtp_mailcmd_count; /* Count of MAIL commands */
780extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
781extern int smtp_max_unknown_commands; /* As it says */
8f128379 782extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
059ec3d9
PH		 783extern FILE *smtp_out; /* Incoming SMTP output file */
784extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
785extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
786extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
787extern uschar *smtp_read_error; /* Message for SMTP input error */
788extern int smtp_receive_timeout; /* Applies to each received line */
789extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
790extern BOOL smtp_return_error_details; /* TRUE to return full info */
791extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
792extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
793extern int smtp_rlm_limit; /* Max delay */
794extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
795extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
796extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
797extern int smtp_rlr_limit; /* Max delay */
798extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
799extern BOOL smtp_use_pipelining; /* Global for passed connections */
800extern BOOL smtp_use_size; /* Global for passed connections */
8523533c
TK		 801
802#ifdef WITH_CONTENT_SCAN
803extern uschar *spamd_address; /* address for the spamassassin daemon */
804extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
805extern uschar *spam_report; /* the spamd report (multiline) */
806extern uschar *spam_score; /* the spam score (float) */
807extern uschar *spam_score_int; /* spam_score * 10 (int) */
808#endif
809#ifdef EXPERIMENTAL_SPF
65a7d8c3 810extern uschar *spf_guess; /* spf best-guess record */
8523533c 811extern uschar *spf_header_comment; /* spf header comment */
8fe685ad 812extern uschar *spf_received; /* Received-SPF: header */
8523533c
TK		 813extern uschar *spf_result; /* spf result in string form */
814extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
815#endif
059ec3d9
PH		 816extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
817extern uschar *spool_directory; /* Name of spool directory */
8523533c
TK		 818#ifdef EXPERIMENTAL_SRS
819extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
820extern uschar *srs_db_address; /* SRS db address */
821extern uschar *srs_db_key; /* SRS db key */
384152a6
TK		 822extern int srs_hashlength; /* SRS hash length */
823extern int srs_hashmin; /* SRS minimum hash length */
824extern int srs_maxage; /* SRS max age */
8523533c
TK		 825extern uschar *srs_orig_sender; /* SRS original sender */
826extern uschar *srs_orig_recipient; /* SRS original recipient */
827extern uschar *srs_recipient; /* SRS recipient */
384152a6 828extern uschar *srs_secrets; /* SRS secrets list */
8523533c 829extern uschar *srs_status; /* SRS staus */
384152a6
TK		 830extern BOOL srs_usehash; /* SRS use hash flag */
831extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
8523533c 832#endif
38a0a95f 833extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
059ec3d9 834extern int string_datestamp_offset;/* After insertion by string_format */
f1e5fef5
PP		 835extern int string_datestamp_length;/* After insertion by string_format */
836extern int string_datestamp_type; /* After insertion by string_format */
059ec3d9
PH		 837extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
838extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
839extern uschar *submission_domain; /* Domain for submission mode */
840extern BOOL submission_mode; /* Can be forced from ACL */
2fe1a124 841extern uschar *submission_name; /* User name set from ACL */
8800895a 842extern BOOL suppress_local_fixups; /* Can be forced from ACL */
f4ee74ac 843extern BOOL suppress_local_fixups_default; /* former is reset to this; override with -G */
059ec3d9
PH		 844extern BOOL synchronous_delivery; /* TRUE if -odi is set */
845extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
846extern int syslog_facility; /* As defined by Syslog.h */
847extern uschar *syslog_processname; /* 'ident' param to openlog() */
848extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
849extern uschar *system_filter; /* Name of system filter file */
850
851extern uschar *system_filter_directory_transport; /* Transports for the */
852extern uschar *system_filter_file_transport; /* system filter */
853extern uschar *system_filter_pipe_transport;
854extern uschar *system_filter_reply_transport;
855
856extern gid_t system_filter_gid; /* Gid for running system filter */
857extern BOOL system_filter_gid_set; /* TRUE if gid set */
858extern uid_t system_filter_uid; /* Uid for running system filter */
859extern BOOL system_filter_uid_set; /* TRUE if uid set */
860extern BOOL system_filtering; /* TRUE when running system filter */
861
862extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
5dc43717
JJ		 863#ifdef USE_TCP_WRAPPERS
864extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
865#endif
8669f003 866extern int test_harness_load_avg; /* For use when testing */
059ec3d9
PH		 867extern int thismessage_size_limit; /* Limit for this message */
868extern int timeout_frozen_after; /* Max time to keep frozen messages */
869extern BOOL timestamps_utc; /* Use UTC for all times */
d68218c7
JH		 870
871#ifdef EXPERIMENTAL_TPDA
872extern int tpda_defer_errno; /* error number set when a remote delivery is deferred with a host error */
873extern uschar *tpda_defer_errstr; /* error string set when a remote delivery is deferred with a host error */
874extern uschar *tpda_delivery_ip; /* IP of host, which has accepted delivery */
875extern int tpda_delivery_port; /* port of host, which has accepted delivery */
876extern uschar *tpda_delivery_fqdn; /* FQDN of host, which has accepted delivery */
877extern uschar *tpda_delivery_local_part;/* local part of address being delivered */
878extern uschar *tpda_delivery_domain; /* domain part of address being delivered */
879extern uschar *tpda_delivery_confirmation; /* SMTP confirmation message */
880#endif
881
181d9bf8 882extern uschar *transport_name; /* Name of transport last started */
059ec3d9 883extern int transport_count; /* Count of bytes transported */
332f5cf3 884extern int transport_newlines; /* Accurate count of number of newline chars transported */
059ec3d9
PH		 885extern uschar **transport_filter_argv; /* For on-the-fly filtering */
886extern int transport_filter_timeout; /* Timeout for same */
2e2a30b4 887extern BOOL transport_filter_timed_out; /* True if it did */
059ec3d9
PH		 888
889extern transport_info transports_available[]; /* Vector of available transports */
890extern transport_instance *transports; /* Chain of instantiated transports */
891extern transport_instance transport_defaults; /* Default values */
892
893extern int transport_write_timeout;/* Set to time out individual writes */
894
895extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
896extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
897extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
898extern tree_node *tree_unusable; /* Tree of unusable addresses */
899
900extern BOOL trusted_caller; /* Caller is trusted */
e2f5dc15 901extern BOOL trusted_config; /* Configuration file is trusted */
059ec3d9
PH		 902extern gid_t *trusted_groups; /* List of trusted groups */
903extern uid_t *trusted_users; /* List of trusted users */
904extern uschar *timezone_string; /* Required timezone setting */
905
906extern uschar *unknown_login; /* To use when login id unknown */
907extern uschar *unknown_username; /* Ditto */
908extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
909extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
910extern uschar *uucp_from_sender; /* For building the sender */
911
912extern uschar *warn_message_file; /* Template for warning messages */
913extern uschar *warnmsg_delay; /* String form of delay time */
914extern uschar *warnmsg_recipients; /* Recipients of warning message */
915extern BOOL write_rejectlog; /* Control of reject logging */
916
917extern uschar *version_copyright; /* Copyright notice */
918extern uschar *version_date; /* Date of compilation */
919extern uschar *version_cnumber; /* Compile number */
920extern uschar *version_string; /* Version string */
921
922extern int warning_count; /* Delay warnings sent for this msg */
923
924/* End of globals.h */
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