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[exim.git] / src / src / globals.h
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059ec3d9
PH		 1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
f9ba5e22 5/* Copyright (c) University of Cambridge 1995 - 2018 */
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 */
2f680c0c 31extern BOOL opt_perl_taintmode; /* Enable taint mode in Perl */
059ec3d9
PH		 32#endif
33
1a46a8c5
PH		 34#ifdef EXPAND_DLFUNC
35extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
36#endif
37
059ec3d9
PH		 38#ifdef LOOKUP_IBASE
39extern uschar *ibase_servers;
40#endif
41
42#ifdef LOOKUP_LDAP
bc19a55b
PP		 43extern uschar *eldap_ca_cert_dir; /* Directory with CA certificates */
44extern uschar *eldap_ca_cert_file; /* CA certificate file */
45extern uschar *eldap_cert_file; /* Certificate file */
46extern uschar *eldap_cert_key; /* Certificate key file */
47extern uschar *eldap_cipher_suite; /* Allowed cipher suite */
059ec3d9 48extern uschar *eldap_default_servers; /* List of default servers */
bc19a55b
PP		 49extern uschar *eldap_require_cert; /* Peer certificate checking strategy */
50extern BOOL eldap_start_tls; /* Use STARTTLS */
059ec3d9
PH		 51extern int eldap_version; /* LDAP version */
52#endif
53
54#ifdef LOOKUP_MYSQL
55extern uschar *mysql_servers; /* List of servers and connect info */
56#endif
57
58#ifdef LOOKUP_ORACLE
59extern uschar *oracle_servers; /* List of servers and connect info */
60#endif
61
62#ifdef LOOKUP_PGSQL
63extern uschar *pgsql_servers; /* List of servers and connect info */
64#endif
65
de78e2d5 66#ifdef LOOKUP_REDIS
9bdd29ad
TL		 67extern uschar *redis_servers; /* List of servers and connect info */
68#endif
69
31480e42
PH		 70#ifdef LOOKUP_SQLITE
71extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
72#endif
73
059ec3d9
PH		 74#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
75extern BOOL move_frozen_messages; /* Get them out of the normal directory */
76#endif
77
78/* These variables are outside the #ifdef because it keeps the code less
79cluttered in several places (e.g. during logging) if we can always refer to
80them. Also, the tls_ variables are now always visible. */
81
817d9f57
JH		 82typedef struct {
83 int active; /* fd/socket when in a TLS session */
84 int bits; /* bits used in TLS session */
85 BOOL certificate_verified; /* Client certificate verified */
53a7196b
JH		 86#ifdef EXPERIMENTAL_DANE
87 BOOL dane_verified; /* ... via DANE */
594706ea 88 int tlsa_usage; /* TLSA record(s) usage */
53a7196b 89#endif
817d9f57
JH		 90 uschar *cipher; /* Cipher used */
91 BOOL on_connect; /* For older MTAs that don't STARTTLS */
92 uschar *on_connect_ports; /* Ports always tls-on-connect */
9d1c15ef
JH		 93 void *ourcert; /* Certificate we presented, binary */
94 void *peercert; /* Certificate of peer, binary */
817d9f57 95 uschar *peerdn; /* DN from peer */
817d9f57 96 uschar *sni; /* Server Name Indication */
44662487
JH		 97 enum {
98 OCSP_NOT_REQ=0, /* not requested */
99 OCSP_NOT_RESP, /* no response to request */
018058b2
JH		 100 OCSP_VFY_NOT_TRIED, /* response not verified */
101 OCSP_FAILED, /* verify failed */
44662487
JH		 102 OCSP_VFIED /* verified */
103 } ocsp; /* Stapled OCSP status */
817d9f57
JH		 104} tls_support;
105extern tls_support tls_in;
106extern tls_support tls_out;
059ec3d9
PH		 107
108#ifdef SUPPORT_TLS
e6060e2c 109extern BOOL gnutls_compat_mode; /* Less security, more compatibility */
2519e60d 110extern BOOL gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */
77bb000f 111extern uschar *openssl_options; /* OpenSSL compatibility options */
059ec3d9 112extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
059ec3d9 113extern uschar *tls_certificate; /* Certificate file */
44bbabb5 114extern uschar *tls_channelbinding_b64; /* string of base64 channel binding */
059ec3d9 115extern uschar *tls_crl; /* CRL File */
3375e053 116extern int tls_dh_max_bits; /* don't accept higher lib suggestions */
059ec3d9 117extern uschar *tls_dhparam; /* DH param file */
10ca4f1c 118extern uschar *tls_eccurve; /* EC curve */
23f3dc67 119# ifndef DISABLE_OCSP
3f7eeb86 120extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
23f3dc67 121# endif
059ec3d9
PH		 122extern uschar *tls_privatekey; /* Private key file */
123extern BOOL tls_remember_esmtp; /* For YAEB */
124extern uschar *tls_require_ciphers; /* So some can be avoided */
125extern uschar *tls_try_verify_hosts; /* Optional client verification */
126extern uschar *tls_verify_certificates;/* Path for certificates to check */
127extern uschar *tls_verify_hosts; /* Mandatory client verification */
128#endif
23f3dc67 129extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
059ec3d9 130
6c1c3d1d
WB		 131extern uschar *dsn_envid; /* DSN envid string */
132extern int dsn_ret; /* DSN ret type*/
133extern const pcre *regex_DSN; /* For recognizing DSN settings */
6c1c3d1d 134extern uschar *dsn_advertise_hosts; /* host for which TLS is advertised */
059ec3d9
PH		 135
136/* Input-reading functions for messages, so we can use special ones for
137incoming TCP/IP. */
138
bd8fbe36 139extern int (*lwr_receive_getc)(unsigned);
0d81dabc 140extern uschar * (*lwr_receive_getbuf)(unsigned *);
7e3ce68e 141extern int (*lwr_receive_ungetc)(int);
bd8fbe36 142extern int (*receive_getc)(unsigned);
0d81dabc 143extern uschar * (*receive_getbuf)(unsigned *);
584e96c6 144extern void (*receive_get_cache)(void);
059ec3d9
PH		 145extern int (*receive_ungetc)(int);
146extern int (*receive_feof)(void);
147extern int (*receive_ferror)(void);
58eb016e 148extern BOOL (*receive_smtp_buffered)(void);
059ec3d9
PH		 149
150
151/* For clearing, saving, restoring address expansion variables. We have to have
152the size of this vector set explicitly, because it is referenced from more than
153one module. */
154
55414b25 155extern const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
059ec3d9
PH		 156
157/* General global variables */
158
159extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
bc3c7bb7 160extern uschar *add_environment; /* List of environment variables to add */
71fafd95 161extern header_line *acl_added_headers; /* Headers added by an ACL */
059ec3d9 162extern tree_node *acl_anchor; /* Tree of named ACLs */
525239c1
JH		 163extern uschar *acl_arg[9]; /* Argument to ACL call */
164extern int acl_narg; /* Number of arguments to ACL call */
e1d04f48 165extern int acl_level; /* Nesting depth and debug indent */
059ec3d9 166extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
54cdb463
PH		 167#ifdef WITH_CONTENT_SCAN
168extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
169#endif
45b91596 170extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
e7568d51 171extern uschar *acl_removed_headers; /* Headers deleted by an ACL */
059ec3d9
PH		 172extern uschar *acl_smtp_auth; /* ACL run for AUTH */
173extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
174extern uschar *acl_smtp_data; /* ACL run after DATA received */
8ccd00b1 175#ifndef DISABLE_PRDR
fd98a5c6
JH		 176extern uschar *acl_smtp_data_prdr; /* ACL run after DATA received if in PRDR mode*/
177const extern pcre *regex_PRDR; /* For recognizing PRDR settings */
178#endif
80a47a2c
TK		 179#ifndef DISABLE_DKIM
180extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */
181#endif
059ec3d9
PH		 182extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
183extern uschar *acl_smtp_expn; /* ACL run for EXPN */
184extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
185extern uschar *acl_smtp_mail; /* ACL run for MAIL */
186extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
8523533c
TK		 187#ifdef WITH_CONTENT_SCAN
188extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
189#endif
8f128379 190extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
059ec3d9
PH		 191extern uschar *acl_smtp_predata; /* ACL run for DATA command */
192extern uschar *acl_smtp_quit; /* ACL run for QUIT */
193extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
194extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
195extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
196extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
38a0a95f 197extern tree_node *acl_var_c; /* ACL connection variables */
85ffcba6 198extern tree_node *acl_var_m; /* ACL message variables */
059ec3d9 199extern uschar *acl_verify_message; /* User message for verify failure */
059ec3d9 200extern string_item *acl_warn_logged; /* Logged lines */
a5bd321b 201extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
059ec3d9 202extern uschar *acl_wherenames[]; /* Names for messages */
69358f02
PH		 203extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
204extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
059ec3d9
PH		 205extern address_item *addr_duplicate; /* Duplicate address list */
206extern address_item address_defaults; /* Default data for address item */
207extern uschar *address_file; /* Name of file when delivering to one */
208extern uschar *address_pipe; /* Pipe command when delivering to one */
209extern BOOL address_test_mode; /* True for -bt */
210extern tree_node *addresslist_anchor; /* Tree of defined address lists */
211extern int addresslist_count; /* Number defined */
212extern gid_t *admin_groups; /* List of admin groups */
213extern BOOL admin_user; /* True if caller can do admin */
c46782ef 214extern BOOL allow_auth_unadvertised;/* As it says */
059ec3d9
PH		 215extern BOOL allow_domain_literals; /* As it says */
216extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
217extern BOOL allow_unqualified_recipient; /* As it says */
218extern BOOL allow_unqualified_sender; /* Ditto */
219extern BOOL allow_utf8_domains; /* For experimenting */
2d07a215 220extern uschar *authenticated_fail_id; /* ID that failed authentication */
059ec3d9
PH		 221extern uschar *authenticated_id; /* ID that was authenticated */
222extern uschar *authenticated_sender; /* From AUTH on MAIL */
223extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
224extern uschar *auth_advertise_hosts; /* Only advertise to these */
225extern auth_info auths_available[]; /* Vector of available auth mechanisms */
226extern auth_instance *auths; /* Chain of instantiated auths */
227extern auth_instance auth_defaults; /* Default values */
228extern uschar *auth_defer_msg; /* Error message for log */
229extern uschar *auth_defer_user_msg; /* Error message for user */
f78eb7c6 230extern uschar *auth_vars[]; /* $authn variables */
059ec3d9 231extern int auto_thaw; /* Auto-thaw interval */
8523533c 232#ifdef WITH_CONTENT_SCAN
9e949f00 233extern BOOL av_failed; /* TRUE if the AV process failed */
8523533c
TK		 234extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
235#endif
059ec3d9
PH		 236
237extern BOOL background_daemon; /* Set FALSE to keep in foreground */
238extern uschar *base62_chars; /* Table of base-62 characters */
239extern uschar *bi_command; /* Command for -bi option */
240extern uschar *big_buffer; /* Used for various temp things */
241extern int big_buffer_size; /* Current size (can expand) */
8523533c
TK		 242#ifdef EXPERIMENTAL_BRIGHTMAIL
243extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
244extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
245extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
246extern uschar *bmi_config_file; /* Brightmail config file */
247extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
248extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
249extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
250#endif
32b8ce41 251extern int bsmtp_transaction_linecount; /* Start of last transaction */
939c3e34 252extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
059ec3d9
PH		 253extern uschar *bounce_message_file; /* Template file */
254extern uschar *bounce_message_text; /* One-liner */
255extern uschar *bounce_recipient; /* When writing an errmsg */
256extern BOOL bounce_return_body; /* Include body in returned message */
62b7cd08 257extern int bounce_return_linesize_limit; /* Max line length in return */
059ec3d9
PH		 258extern BOOL bounce_return_message; /* Include message in bounce */
259extern int bounce_return_size_limit; /* Max amount to return */
260extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
059ec3d9 261
055e2cb4 262extern uschar *callout_address; /* Address used for a malware/spamd/verify etc. callout */
059ec3d9
PH		 263extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
264extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
265extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
266extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
267extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
268extern uschar *check_dns_names_pattern;/* Regex for syntax check */
269extern int check_log_inodes; /* Minimum for message acceptance */
270extern int check_log_space; /* Minimum for message acceptance */
a0d6ba8a 271extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
059ec3d9
PH		 272extern int check_spool_inodes; /* Minimum for message acceptance */
273extern int check_spool_space; /* Minimum for message acceptance */
aa368db3 274extern uschar *chunking_advertise_hosts; /* RFC 3030 CHUNKING */
18481de3 275extern unsigned chunking_datasize;
7e3ce68e
JH		 276extern unsigned chunking_data_left;
277extern BOOL chunking_offered;
18481de3 278extern chunking_state_t chunking_state;
c8e2fc1e
JH		 279extern uschar *client_authenticator; /* Authenticator name used for smtp delivery */
280extern uschar *client_authenticated_id; /* "login" name used for SMTP AUTH */
281extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
059ec3d9
PH		 282extern int clmacro_count; /* Number of command line macros */
283extern uschar *clmacros[]; /* Copy of them, for re-exec */
f33875c3 284extern BOOL commandline_checks_require_admin; /* belt and braces for insecure setups */
059ec3d9
PH		 285extern int connection_max_messages;/* Max down one SMTP connection */
286extern BOOL config_changed; /* True if -C used */
287extern FILE *config_file; /* Configuration file */
18d6b513 288extern const uschar *config_filename; /* Configuration file name */
35edf2ff 289extern gid_t config_gid; /* Additional group owner */
059ec3d9
PH		 290extern int config_lineno; /* Line number */
291extern uschar *config_main_filelist; /* List of possible config files */
292extern uschar *config_main_filename; /* File name actually used */
98b8312f 293extern uschar *config_main_directory; /* Directory where the main config file was found */
059ec3d9 294extern uid_t config_uid; /* Additional owner */
5013d912 295extern uschar *continue_proxy_cipher; /* TLS cipher for proxied continued delivery */
059ec3d9
PH		 296extern uschar *continue_hostname; /* Host for continued delivery */
297extern uschar *continue_host_address; /* IP address for ditto */
298extern BOOL continue_more; /* Flag more addresses waiting */
299extern int continue_sequence; /* Sequence num for continued delivery */
300extern uschar *continue_transport; /* Transport for continued delivery */
301
e5a9dba6 302extern uschar *csa_status; /* Client SMTP Authorization result */
5032d1cf
JH		 303
304typedef struct {
57cc2785 305 unsigned callout_hold_only:1; /* Conn is only for verify callout */
ff5929e3 306 unsigned delivery:1; /* When to attempt */
4c04137d 307 unsigned defer_pass:1; /* Pass 4xx to caller rather than spooling */
57cc2785 308 unsigned is_tls:1; /* Conn has TLS active */
5032d1cf
JH		 309 int fd; /* Open connection */
310 int nrcpt; /* Count of addresses */
57cc2785 311 uschar * transport; /* Name of transport */
5032d1cf 312 uschar * interface; /* (address of) */
57cc2785
JH		 313 uschar * snd_ip; /* sending_ip_address */
314 int snd_port; /* sending_port */
315 unsigned peer_options; /* smtp_peer_options */
5032d1cf
JH		 316 host_item host; /* Host used */
317 address_item addr; /* (Chain of) addresses */
318} cut_t;
319extern cut_t cutthrough; /* Deliver-concurrently */
e5a9dba6 320
059ec3d9
PH		 321extern BOOL daemon_listen; /* True if listening required */
322extern uschar *daemon_smtp_port; /* Can be a list of ports */
4aee0225
PH		 323extern int daemon_startup_retries; /* Number of times to retry */
324extern int daemon_startup_sleep; /* Sleep between retries */
6a8f9482
TK		 325
326#ifdef EXPERIMENTAL_DCC
327extern BOOL dcc_direct_add_header; /* directly add header */
328extern uschar *dcc_header; /* dcc header */
329extern uschar *dcc_result; /* dcc result */
330extern uschar *dccifd_address; /* address of the dccifd daemon */
331extern uschar *dccifd_options; /* options for the dccifd daemon */
332#endif
333
3d235903 334extern BOOL debug_daemon; /* Debug the daemon process only */
059ec3d9
PH		 335extern int debug_fd; /* The fd for debug_file */
336extern FILE *debug_file; /* Where to write debugging info */
6c6d6e48 337extern int debug_notall[]; /* Debug options excluded from +all */
059ec3d9
PH		 338extern bit_table debug_options[]; /* Table of debug options */
339extern int debug_options_count; /* Size of table */
64073d9c 340extern BOOL debug_store; /* Do extra checks on store_reset */
059ec3d9
PH		 341extern int delay_warning[]; /* Times between warnings */
342extern uschar *delay_warning_condition; /* Condition string for warnings */
343extern BOOL delivery_date_remove; /* Remove delivery-date headers */
344
345extern uschar *deliver_address_data; /* Arbitrary data for an address */
346extern int deliver_datafile; /* FD for data part of message */
55414b25 347extern const uschar *deliver_domain; /* The local domain for delivery */
059ec3d9 348extern uschar *deliver_domain_data; /* From domain lookup */
55414b25
JH		 349extern const uschar *deliver_domain_orig; /* The original local domain for delivery */
350extern const uschar *deliver_domain_parent; /* The parent domain for delivery */
059ec3d9
PH		 351extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
352extern BOOL deliver_firsttime; /* True for first delivery attempt */
353extern BOOL deliver_force; /* TRUE if delivery was forced */
354extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
19050083 355extern time_t deliver_frozen_at; /* Time of freezing */
059ec3d9 356extern uschar *deliver_home; /* Home directory for pipes */
55414b25 357extern const uschar *deliver_host; /* (First) host for routed local deliveries */
059ec3d9 358 /* Remote host for filter */
55414b25 359extern const uschar *deliver_host_address; /* Address for remote delivery filter */
a7538db1 360extern int deliver_host_port; /* Address for remote delivery filter */
059ec3d9
PH		 361extern uschar *deliver_in_buffer; /* Buffer for copying file */
362extern ino_t deliver_inode; /* Inode for appendfile */
363extern uschar *deliver_localpart; /* The local part for delivery */
364extern uschar *deliver_localpart_data; /* From local part lookup */
365extern uschar *deliver_localpart_orig; /* The original local part for delivery */
366extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
367extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
368extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
369extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
370extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
371extern uschar *deliver_out_buffer; /* Buffer for copying file */
372extern int deliver_queue_load_max; /* Different value for queue running */
373extern address_item *deliver_recipients; /* Current set of addresses */
374extern uschar *deliver_selectstring; /* For selecting by recipient */
375extern BOOL deliver_selectstring_regex; /* String is regex */
376extern uschar *deliver_selectstring_sender; /* For selecting by sender */
377extern BOOL deliver_selectstring_sender_regex; /* String is regex */
4c590bd1 378extern BOOL disable_callout_flush; /* Don't flush before callouts */
047bdd8c 379extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
54fc8428
PH		 380#ifdef ENABLE_DISABLE_FSYNC
381extern BOOL disable_fsync; /* Not for normal use */
382#endif
7e66e54d 383extern BOOL disable_ipv6; /* Don't do any IPv6 things */
059ec3d9
PH		 384extern BOOL disable_logging; /* Disables log writing when TRUE */
385
80a47a2c 386#ifndef DISABLE_DKIM
abe1010c 387extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
2df588c9 388extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
abe1010c
JH		 389extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
390extern int dkim_key_length; /* Expansion variable, length of signing key in bits */
9e5d6b55 391extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
80a47a2c
TK		 392extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
393extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
2c47372f 394extern uschar *dkim_verify_overall; /* First successful domain verified, or null */
80a47a2c 395extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
a79d8834
JH		 396extern uschar *dkim_verify_status; /* result for this signature */
397extern uschar *dkim_verify_reason; /* result for this signature */
f7572e5a 398#endif
4840604e 399#ifdef EXPERIMENTAL_DMARC
4a8ce2d8 400extern BOOL dmarc_has_been_checked; /* Global variable to check if test has been called yet */
4840604e 401extern uschar *dmarc_ar_header; /* Expansion variable, suggested header for dmarc auth results */
8c8b8274 402extern uschar *dmarc_domain_policy; /* Expansion for declared policy of used domain */
4840604e
TL		 403extern uschar *dmarc_forensic_sender; /* Set sender address for forensic reports */
404extern uschar *dmarc_history_file; /* Expansion variable, file to store dmarc results */
405extern uschar *dmarc_status; /* Expansion variable, one word value */
406extern uschar *dmarc_status_text; /* Expansion variable, human readable value */
407extern uschar *dmarc_tld_file; /* Mozilla TLDs text file */
408extern uschar *dmarc_used_domain; /* Expansion variable, domain libopendmarc chose for DMARC policy lookup */
409extern BOOL dmarc_disable_verify; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */
410extern BOOL dmarc_enable_forensic; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */
411#endif
f7572e5a 412
059ec3d9 413extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
e5a9dba6
PH		 414extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
415extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
059ec3d9 416extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
e682570f
TL		 417#ifdef EXPERIMENTAL_DANE
418extern int dns_dane_ok; /* Ok to use DANE when checking TLS authenticity */
419#endif
059ec3d9
PH		 420extern int dns_retrans; /* Retransmission time setting */
421extern int dns_retry; /* Number of retries */
0fbd9bff 422extern int dns_dnssec_ok; /* When constructing DNS query, set DO flag */
9820a77f 423extern uschar *dns_trust_aa; /* DNSSEC trust AA as AD */
e97d1f08 424extern int dns_use_edns0; /* Coerce EDNS0 support on/off in resolver. */
059ec3d9 425extern uschar *dnslist_domain; /* DNS (black) list domain */
93655c46 426extern uschar *dnslist_matched; /* DNS (black) list matched key */
059ec3d9
PH		 427extern uschar *dnslist_text; /* DNS (black) list text message */
428extern uschar *dnslist_value; /* DNS (black) list IP address */
429extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
430extern int domainlist_count; /* Number defined */
431extern BOOL dont_deliver; /* TRUE for -N option */
432extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
433
434/* This option is now a no-opt, retained for compatibility */
435extern BOOL drop_cr; /* For broken local MUAs */
436
0e22dfd1
PH		 437extern uschar *dsn_from; /* From: string for DSNs */
438
059ec3d9 439extern BOOL enable_dollar_recipients; /* Make $recipients available */
a207d5dd 440extern BOOL envelope_to_remove; /* Remove envelope_to_headers */
059ec3d9
PH		 441extern int errno_quota; /* Quota errno in this OS */
442extern int error_handling; /* Error handling style */
443extern uschar *errors_copy; /* For taking copies of errors */
444extern uschar *errors_reply_to; /* Reply-to for error messages */
445extern int errors_sender_rc; /* Return after message to sender*/
774ef2d7 446
0cbf2b82 447#ifndef DISABLE_EVENT
774ef2d7
JH		 448extern uschar *event_action; /* expansion for delivery events */
449extern uschar *event_data; /* event data */
450extern int event_defer_errno; /* error number set when a remote delivery is deferred with a host error */
55414b25 451extern const uschar *event_name; /* event classification */
774ef2d7
JH		 452#endif
453
059ec3d9
PH		 454extern gid_t exim_gid; /* To be used with exim_uid */
455extern BOOL exim_gid_set; /* TRUE if exim_gid set */
456extern uschar *exim_path; /* Path to exec exim */
98a90c36 457extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
059ec3d9
PH		 458extern uid_t exim_uid; /* Non-root uid for exim */
459extern BOOL exim_uid_set; /* TRUE if exim_uid set */
e1d04f48 460extern int expand_level; /* Nesting depth; indent for debug */
059ec3d9
PH		 461extern int expand_forbid; /* RDO flags for forbidding things */
462extern int expand_nlength[]; /* Lengths of numbered strings */
463extern int expand_nmax; /* Max numerical value */
464extern uschar *expand_nstring[]; /* Numbered strings */
465extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
466extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
467extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
468
29aba418
TF		 469extern int fake_response; /* Fake FAIL or DEFER response to data */
470extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
059ec3d9
PH		 471extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
472extern BOOL filter_running; /* TRUE while running a filter */
473extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
f05da2e8
PH		 474extern int filter_test; /* Filter test type */
475extern uschar *filter_test_sfile; /* System filter test file */
476extern uschar *filter_test_ufile; /* User filter test file */
059ec3d9
PH		 477extern uschar *filter_thisaddress; /* For address looping */
478extern int finduser_retries; /* Retry count for getpwnam() */
479extern uid_t fixed_never_users[]; /* Can't be overridden */
480extern uschar *freeze_tell; /* Message on (some) freezings */
6a3f1455 481extern uschar *freeze_tell_config; /* The configured setting */
059ec3d9
PH		 482extern uschar *fudged_queue_times; /* For use in test harness */
483
484extern uschar *gecos_name; /* To be expanded when pattern matches */
485extern uschar *gecos_pattern; /* Pattern to match */
486extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
487
488extern int header_insert_maxlen; /* Max for inserting headers */
489extern int header_maxsize; /* Max total length for header */
490extern int header_line_maxsize; /* Max for an individual line */
491extern header_name header_names[]; /* Table of header names */
492extern int header_names_size; /* Number of entries */
493extern BOOL header_rewritten; /* TRUE if header changed by router */
494extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
495extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
496extern uschar *helo_lookup_domains; /* If these given, lookup host name */
497extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
498extern BOOL helo_verified; /* True if HELO verified */
d7b47fd0 499extern BOOL helo_verify_failed; /* True if attempt failed */
059ec3d9 500extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
1ba28e2b 501extern const uschar *hex_digits; /* Used in several places */
059ec3d9
PH		 502extern uschar *hold_domains; /* Hold up deliveries to these */
503extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
504extern BOOL host_checking_callout; /* TRUE if real callout wanted */
505extern uschar *host_data; /* Obtained from lookup in ACL */
506extern uschar *host_lookup; /* For which IP addresses are always looked up */
b08b24c8 507extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
059ec3d9
PH		 508extern BOOL host_lookup_failed; /* TRUE if lookup failed */
509extern uschar *host_lookup_order; /* Order of host lookup types */
510extern uschar *host_lookup_msg; /* Text for why it failed */
511extern int host_number; /* For sharing spools */
512extern uschar *host_number_string; /* For expanding */
513extern uschar *host_reject_connection; /* Reject these hosts */
514extern tree_node *hostlist_anchor; /* Tree of defined host lists */
515extern int hostlist_count; /* Number defined */
516extern uschar *hosts_connection_nolog; /* Limits the logging option */
517extern uschar *hosts_treat_as_local; /* For routing */
518
519extern int ignore_bounce_errors_after; /* Keep them for this time. */
520extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
521extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
9ee44efb
PP		 522extern BOOL inetd_wait_mode; /* Whether running in inetd wait mode */
523extern int inetd_wait_timeout; /* Timeout for inetd wait mode */
3615fa9a 524extern uschar *initial_cwd; /* The directory we where in at startup */
059ec3d9 525extern BOOL is_inetd; /* True for inetd calls */
0ce9abe6 526extern uschar *iterate_item; /* Item from iterate list */
059ec3d9
PH		 527
528extern int journal_fd; /* Fd for journal file */
529
bc3c7bb7 530extern uschar *keep_environment; /* Whitelist for environment variables */
059ec3d9
PH		 531extern int keep_malformed; /* Time to keep malformed messages */
532
533extern uschar *eldap_dn; /* Where LDAP DNs are left */
534extern int load_average; /* Most recently read load average */
535extern BOOL local_error_message; /* True if handling one of these */
69358f02 536extern BOOL local_from_check; /* For adding Sender: (global value) */
059ec3d9
PH		 537extern uschar *local_from_prefix; /* Permitted prefixes */
538extern uschar *local_from_suffix; /* Permitted suffixes */
539extern uschar *local_interfaces; /* For forcing specific interfaces */
540extern uschar *local_scan_data; /* Text returned by local_scan() */
541extern optionlist local_scan_options[];/* Option list for local_scan() */
542extern int local_scan_options_count; /* Size of the list */
543extern int local_scan_timeout; /* Timeout for local_scan() */
544extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
545extern gid_t local_user_gid; /* As it says; may be set in routers */
546extern uid_t local_user_uid; /* As it says; may be set in routers */
547extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
548extern int localpartlist_count; /* Number defined */
549extern uschar *log_buffer; /* For constructing log entries */
6c6d6e48 550extern int log_default[]; /* Initialization list for log_selector */
059ec3d9 551extern uschar *log_file_path; /* If unset, use default */
6c6d6e48 552extern int log_notall[]; /* Log options excluded from +all */
059ec3d9
PH		 553extern bit_table log_options[]; /* Table of options */
554extern int log_options_count; /* Size of table */
6ea85e9a 555extern int log_reject_target; /* Target log for ACL rejections */
6c6d6e48 556extern unsigned int log_selector[]; /* Bit map of logging options */
059ec3d9
PH		 557extern uschar *log_selector_string; /* As supplied in the config */
558extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
559extern BOOL log_testing_mode; /* TRUE in various testing modes */
560extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
561extern uschar *login_sender_address; /* The actual sender address */
e6d225ae 562extern lookup_info **lookup_list; /* Array of pointers to available lookups */
059ec3d9 563extern int lookup_list_count; /* Number of entries in the list */
4e0983dc 564extern uschar *lookup_dnssec_authenticated; /* AD status of dns lookup */
059ec3d9
PH		 565extern int lookup_open_max; /* Max lookup files to cache */
566extern uschar *lookup_value; /* Value looked up from file */
567
1a7c9a48
JH		 568extern macro_item *macros; /* Configuration macros */
569extern macro_item *mlast; /* Last item in macro list */
059ec3d9 570extern uschar *mailstore_basename; /* For mailstore deliveries */
8523533c
TK		 571#ifdef WITH_CONTENT_SCAN
572extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
573#endif
d677b2f2 574extern int max_received_linelength;/* What it says */
059ec3d9
PH		 575extern int max_username_length; /* For systems with broken getpwnam() */
576extern int message_age; /* In seconds */
577extern uschar *message_body; /* Start of message body for filter */
578extern uschar *message_body_end; /* End of message body for filter */
ddea74fa 579extern BOOL message_body_newlines; /* FALSE => remove newlines */
059ec3d9
PH		 580extern int message_body_size; /* Sic */
581extern int message_body_visible; /* Amount visible in message_body */
582extern int message_ended; /* State of message reading and how ended */
583extern uschar *message_headers; /* When built */
584extern uschar message_id_option[]; /* -E<message-id> for use as option */
585extern uschar *message_id_external; /* External form of following */
586extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
587extern uschar *message_id_text; /* Expanded to form message_id */
588extern struct timeval message_id_tv; /* Time used to create last message_id */
589extern int message_linecount; /* As it says */
590extern BOOL message_logs; /* TRUE to write message logs */
591extern int message_size; /* Size of message */
592extern uschar *message_size_limit; /* As it says */
8c5d388a 593#ifdef SUPPORT_I18N
eb02f5df 594extern BOOL message_smtputf8; /* Internationalized mail handling */
3c8b3577 595extern int message_utf8_downconvert; /* convert from utf8 */
7ade712c 596const extern pcre *regex_UTF8; /* For recognizing SMTPUTF8 settings */
eb02f5df 597#endif
059ec3d9
PH		 598extern uschar message_subdir[]; /* Subdirectory for messages */
599extern uschar *message_reference; /* Reference for error messages */
8523533c
TK		 600
601/* MIME ACL expandables */
602#ifdef WITH_CONTENT_SCAN
603extern int mime_anomaly_level;
1ba28e2b 604extern const uschar *mime_anomaly_text;
8523533c
TK		 605extern uschar *mime_boundary;
606extern uschar *mime_charset;
607extern uschar *mime_content_description;
608extern uschar *mime_content_disposition;
609extern uschar *mime_content_id;
610extern unsigned int mime_content_size;
611extern uschar *mime_content_transfer_encoding;
612extern uschar *mime_content_type;
613extern uschar *mime_decoded_filename;
614extern uschar *mime_filename;
615extern int mime_is_multipart;
616extern int mime_is_coverletter;
617extern int mime_is_rfc822;
618extern int mime_part_count;
619#endif
620
059ec3d9
PH		 621extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
622
623extern uid_t *never_users; /* List of uids never to be used */
8523533c
TK		 624#ifdef WITH_CONTENT_SCAN
625extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
626#endif
059ec3d9
PH		 627extern BOOL no_multiline_responses; /* For broken clients */
628
fb05276a
JH		 629extern const int on; /* For setsockopt */
630extern const int off;
631
059ec3d9
PH		 632extern optionlist optionlist_auths[]; /* These option lists are made */
633extern int optionlist_auths_size; /* global so that readconf can */
634extern optionlist optionlist_routers[]; /* see them for printing out */
635extern int optionlist_routers_size; /* the options. */
636extern optionlist optionlist_transports[];
637extern int optionlist_transports_size;
638
639extern uid_t original_euid; /* Original effective uid */
640extern gid_t originator_gid; /* Gid of whoever wrote spool file */
641extern uschar *originator_login; /* Login of same */
642extern uschar *originator_name; /* Full name of same */
643extern uid_t originator_uid; /* Uid of ditto */
644extern uschar *override_local_interfaces; /* Value of -oX argument */
645extern uschar *override_pid_file_path; /* Value of -oP argument */
646
647extern BOOL parse_allow_group; /* Allow group syntax */
648extern BOOL parse_found_group; /* In the middle of a group */
649extern uschar *percent_hack_domains; /* Local domains for which '% operates */
650extern uschar *pid_file_path; /* For writing daemon pids */
651extern uschar *pipelining_advertise_hosts; /* As it says */
cf8b11a5 652extern BOOL pipelining_enable; /* As it says */
8ccd00b1 653#ifndef DISABLE_PRDR
fd98a5c6
JH		 654extern BOOL prdr_enable; /* As it says */
655extern BOOL prdr_requested; /* Connecting mail server wants PRDR */
656#endif
059ec3d9
PH		 657extern BOOL preserve_message_logs; /* Save msglog files */
658extern uschar *primary_hostname; /* Primary name of this computer */
659extern BOOL print_topbitchars; /* Topbit chars are printing chars */
660extern uschar process_info[]; /* For SIGUSR1 output */
921b12ca 661extern int process_info_len;
059ec3d9
PH		 662extern uschar *process_log_path; /* Alternate path */
663extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
a3c86431 664
e6d2a989 665#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
cee5f132 666extern uschar *hosts_proxy; /* Hostlist which (require) use proxy protocol */
e6d2a989
JH		 667extern uschar *proxy_external_address; /* IP of remote interface of proxy */
668extern int proxy_external_port; /* Port on remote interface of proxy */
669extern uschar *proxy_local_address; /* IP of local interface of proxy */
670extern int proxy_local_port; /* Port on local interface of proxy */
a3c86431
TL		 671extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */
672extern BOOL proxy_session_failed; /* TRUE if required proxy negotiation failed */
673#endif
674
fffda43a
TK		 675extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
676extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
677extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
059ec3d9 678
55414b25 679extern const uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
059ec3d9
PH		 680extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
681extern BOOL queue_2stage; /* Run queue in 2-stage manner */
682extern uschar *queue_domains; /* Queue these domains */
683extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
684extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
685extern BOOL queue_run_force; /* TRUE to force during queue run */
686extern BOOL queue_run_local; /* Local deliveries only in queue run */
687extern BOOL queue_running; /* TRUE for queue running process and */
688 /* immediate children */
689extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
690extern int queue_run_pipe; /* Pipe for synchronizing */
691extern int queue_interval; /* Queue running interval */
a2da3176 692extern uschar *queue_name; /* Name of queue, if nondefault spooling */
059ec3d9
PH		 693extern BOOL queue_only; /* TRUE to disable immediate delivery */
694extern int queue_only_load; /* Max load before auto-queue */
8669f003 695extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
059ec3d9
PH		 696extern uschar *queue_only_file; /* Queue if file exists/not-exists */
697extern BOOL queue_only_override; /* Allow override from command line */
698extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
699extern BOOL queue_run_in_order; /* As opposed to random */
0cd5fd23 700extern uschar *queue_run_max; /* Max queue runners */
4c04137d 701extern BOOL queue_smtp; /* Disable all immediate SMTP (-odqs)*/
059ec3d9
PH		 702extern uschar *queue_smtp_domains; /* Ditto, for these domains */
703
704extern unsigned int random_seed; /* Seed for random numbers */
fe0dab11 705extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
870f6ba8
TF		 706extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
707extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
059ec3d9
PH		 708extern uschar *raw_active_hostname; /* Pre-expansion */
709extern uschar *raw_sender; /* Before rewriting */
710extern uschar **raw_recipients; /* Before rewriting */
711extern int raw_recipients_count;
712extern int rcpt_count; /* Count of RCPT commands in a message */
713extern int rcpt_fail_count; /* Those that got 5xx */
714extern int rcpt_defer_count; /* Those that got 4xx */
715extern gid_t real_gid; /* Real gid */
716extern uid_t real_uid; /* Real user running program */
717extern BOOL really_exim; /* FALSE in utilities */
718extern BOOL receive_call_bombout; /* Flag for crashing log */
719extern int receive_linecount; /* Mainly for BSMTP errors */
720extern int receive_messagecount; /* Mainly for BSMTP errors */
721extern int receive_timeout; /* For non-SMTP acceptance */
722extern int received_count; /* Count of Received: headers */
723extern uschar *received_for; /* For "for" field */
724extern uschar *received_header_text; /* Definition of Received: header */
725extern int received_headers_max; /* Max count of Received: headers */
32dfdf8b 726extern struct timeval received_time; /* Time the message was received */
306c6c77 727extern struct timeval received_time_taken; /* Interval the message took to be received */
059ec3d9
PH		 728extern uschar *recipient_data; /* lookup data for recipients */
729extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
2c7db3f5 730extern uschar *recipient_verify_failure; /* What went wrong */
059ec3d9
PH		 731extern BOOL recipients_discarded; /* By an ACL */
732extern int recipients_list_max; /* Maximum number fitting in list */
733extern int recipients_max; /* Max permitted */
a207d5dd 734extern BOOL recipients_max_reject; /* If TRUE, reject whole message */
059ec3d9
PH		 735extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
736extern const pcre *regex_check_dns_names; /* For DNS name checking */
737extern const pcre *regex_From; /* For recognizing "From_" lines */
f98442df 738extern const pcre *regex_CHUNKING; /* For recognizing CHUNKING (RFC 3030) */
f1513293 739extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
059ec3d9
PH		 740extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
741extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
742extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
f38917cc
JH		 743extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
744extern uschar *regex_vars[]; /* $regexN variables */
a7cbbf50
PP		 745#ifdef WHITELIST_D_MACROS
746extern const pcre *regex_whitelisted_macro; /* For -D macro values */
747#endif
8523533c
TK		 748#ifdef WITH_CONTENT_SCAN
749extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
750#endif
059ec3d9
PH		 751extern int remote_delivery_count; /* Number of remote addresses */
752extern int remote_max_parallel; /* Maximum parallel delivery */
753extern uschar *remote_sort_domains; /* Remote domain sorting order */
754extern retry_config *retries; /* Chain of retry config information */
755extern int retry_data_expire; /* When to expire retry data */
756extern int retry_interval_max; /* Absolute maximum */
757extern int retry_maximum_timeout; /* The maximum timeout */
758extern uschar *return_path; /* Return path for a message */
759extern BOOL return_path_remove; /* Remove return-path headers */
760extern int rewrite_existflags; /* Indicate which headers have rewrites */
761extern uschar *rfc1413_hosts; /* RFC hosts */
762extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
763/* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
c1d94452 764extern uid_t root_gid; /* The gid for root */
059ec3d9
PH		 765extern uid_t root_uid; /* The uid for root */
766extern router_info routers_available[];/* Vector of available routers */
767extern router_instance *routers; /* Chain of instantiated routers */
768extern router_instance router_defaults;/* Default values */
181d9bf8 769extern uschar *router_name; /* Name of router last started */
059ec3d9
PH		 770extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
771extern ip_address_item *running_interfaces; /* Host's running interfaces */
772extern uschar *running_status; /* Flag string for testing */
773extern int runrc; /* rc from ${run} */
774
775extern uschar *search_error_message; /* Details of lookup problem */
776extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
777extern uschar *self_hostname; /* Self host after routing->directors */
778extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
2a3eea10 779extern uschar *sender_address_data; /* address_data from sender verify */
059ec3d9
PH		 780extern BOOL sender_address_forced; /* Set by -f */
781extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
782extern uschar *sender_data; /* lookup result for senders */
783extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
784extern uschar *sender_fullhost; /* Sender host name + address */
1705dd20 785extern BOOL sender_helo_dnssec; /* True if HELO verify used DNS and was DNSSEC */
059ec3d9
PH		 786extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
787extern uschar **sender_host_aliases; /* Points to list of alias names */
788extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
1f4a55da 789extern BOOL sender_host_dnssec; /* true if sender_host_name verified in DNSSEC */
059ec3d9
PH		 790extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
791extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
792extern uschar *sender_ident; /* Sender identity via RFC 1413 */
793extern BOOL sender_local; /* TRUE for local senders */
2fe1a124 794extern BOOL sender_name_forced; /* Set by -F */
870f6ba8
TF		 795extern uschar *sender_rate; /* Sender rate computed by ACL */
796extern uschar *sender_rate_limit; /* Configured rate limit */
797extern uschar *sender_rate_period; /* Configured smoothing period */
059ec3d9
PH		 798extern uschar *sender_rcvhost; /* Host data for Received: */
799extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
800extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
2c7db3f5 801extern uschar *sender_verify_failure; /* What went wrong */
059ec3d9
PH		 802extern address_item *sender_verified_list; /* Saved chain of sender verifies */
803extern address_item *sender_verified_failed; /* The one that caused denial */
41c7c167
PH		 804extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
805extern int sending_port; /* Port of outgoing interface */
cd59ab18 806extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */
059ec3d9 807extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
4c04137d 808extern int slow_lookup_log; /* Log DNS lookups taking longer than N millisecs */
059ec3d9
PH		 809extern int smtp_accept_count; /* Count of connections */
810extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
811extern int smtp_accept_max; /* Max SMTP connections */
812extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
813extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
814extern int smtp_accept_max_per_connection; /* Max msgs per connection */
815extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
816extern int smtp_accept_queue; /* Queue after so many connections */
817extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
818extern int smtp_accept_reserve; /* Reserve these SMTP connections */
819extern uschar *smtp_active_hostname; /* Hostname for this message */
820extern BOOL smtp_authenticated; /* Sending client has authenticated */
821extern uschar *smtp_banner; /* Banner string (to be expanded) */
822extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
b4ed4da0 823extern int smtp_ch_index; /* Index in smtp_connection_had */
3ee512ff
PH		 824extern uschar *smtp_cmd_argument; /* For all SMTP commands */
825extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
0f1a8658 826extern struct timeval smtp_connection_start; /* Start time of SMTP connection */
b4ed4da0 827extern uschar smtp_connection_had[]; /* Recent SMTP commands */
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PH		 828extern int smtp_connect_backlog; /* Max backlog permitted */
829extern double smtp_delay_mail; /* Current MAIL delay */
830extern double smtp_delay_rcpt; /* Current RCPT delay */
831extern BOOL smtp_enforce_sync; /* Enforce sync rules */
832extern uschar *smtp_etrn_command; /* Command to run */
833extern BOOL smtp_etrn_serialize; /* Only one at once */
834extern FILE *smtp_in; /* Incoming SMTP input file */
835extern int smtp_load_reserve; /* Only from reserved if load > this */
836extern int smtp_mailcmd_count; /* Count of MAIL commands */
837extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
838extern int smtp_max_unknown_commands; /* As it says */
8f128379 839extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
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PH		 840extern FILE *smtp_out; /* Incoming SMTP output file */
841extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
842extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
843extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
844extern uschar *smtp_read_error; /* Message for SMTP input error */
845extern int smtp_receive_timeout; /* Applies to each received line */
1ad6489e 846extern uschar *smtp_receive_timeout_s; /* ... expandable version */
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PH		 847extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
848extern BOOL smtp_return_error_details; /* TRUE to return full info */
849extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
850extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
851extern int smtp_rlm_limit; /* Max delay */
852extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
853extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
854extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
855extern int smtp_rlr_limit; /* Max delay */
856extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
2d14f397
JH		 857extern unsigned smtp_peer_options; /* Global flags for passed connections */
858extern unsigned smtp_peer_options_wrap; /* stacked version hidden by TLS */
8c5d388a 859#ifdef SUPPORT_I18N
3d1451ea
JH		 860extern uschar *smtputf8_advertise_hosts; /* ingress control */
861#endif
8523533c
TK		 862
863#ifdef WITH_CONTENT_SCAN
864extern uschar *spamd_address; /* address for the spamassassin daemon */
865extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
866extern uschar *spam_report; /* the spamd report (multiline) */
c5f280e2 867extern uschar *spam_action; /* the spamd recommended-action */
8523533c
TK		 868extern uschar *spam_score; /* the spam score (float) */
869extern uschar *spam_score_int; /* spam_score * 10 (int) */
870#endif
7952eef9 871#ifdef SUPPORT_SPF
65a7d8c3 872extern uschar *spf_guess; /* spf best-guess record */
8523533c 873extern uschar *spf_header_comment; /* spf header comment */
8fe685ad 874extern uschar *spf_received; /* Received-SPF: header */
8523533c
TK		 875extern uschar *spf_result; /* spf result in string form */
876extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
877#endif
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PH		 878extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
879extern uschar *spool_directory; /* Name of spool directory */
328c5688
JH		 880extern BOOL spool_file_wireformat; /* current -D file has CRLF rather than NL */
881extern BOOL spool_wireformat; /* can write wireformat -D files */
8523533c
TK		 882#ifdef EXPERIMENTAL_SRS
883extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
884extern uschar *srs_db_address; /* SRS db address */
885extern uschar *srs_db_key; /* SRS db key */
384152a6
TK		 886extern int srs_hashlength; /* SRS hash length */
887extern int srs_hashmin; /* SRS minimum hash length */
888extern int srs_maxage; /* SRS max age */
8523533c
TK		 889extern uschar *srs_orig_sender; /* SRS original sender */
890extern uschar *srs_orig_recipient; /* SRS original recipient */
891extern uschar *srs_recipient; /* SRS recipient */
384152a6 892extern uschar *srs_secrets; /* SRS secrets list */
8523533c 893extern uschar *srs_status; /* SRS staus */
384152a6
TK		 894extern BOOL srs_usehash; /* SRS use hash flag */
895extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
8523533c 896#endif
38a0a95f 897extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
059ec3d9 898extern int string_datestamp_offset;/* After insertion by string_format */
f1e5fef5
PP		 899extern int string_datestamp_length;/* After insertion by string_format */
900extern int string_datestamp_type; /* After insertion by string_format */
059ec3d9
PH		 901extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
902extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
903extern uschar *submission_domain; /* Domain for submission mode */
904extern BOOL submission_mode; /* Can be forced from ACL */
2fe1a124 905extern uschar *submission_name; /* User name set from ACL */
8800895a 906extern BOOL suppress_local_fixups; /* Can be forced from ACL */
f4ee74ac 907extern BOOL suppress_local_fixups_default; /* former is reset to this; override with -G */
059ec3d9
PH		 908extern BOOL synchronous_delivery; /* TRUE if -odi is set */
909extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
910extern int syslog_facility; /* As defined by Syslog.h */
2333e06f 911extern BOOL syslog_pid; /* TRUE if PID on syslogs */
059ec3d9
PH		 912extern uschar *syslog_processname; /* 'ident' param to openlog() */
913extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
914extern uschar *system_filter; /* Name of system filter file */
915
916extern uschar *system_filter_directory_transport; /* Transports for the */
917extern uschar *system_filter_file_transport; /* system filter */
918extern uschar *system_filter_pipe_transport;
919extern uschar *system_filter_reply_transport;
920
921extern gid_t system_filter_gid; /* Gid for running system filter */
922extern BOOL system_filter_gid_set; /* TRUE if gid set */
923extern uid_t system_filter_uid; /* Uid for running system filter */
924extern BOOL system_filter_uid_set; /* TRUE if uid set */
925extern BOOL system_filtering; /* TRUE when running system filter */
926
6af7e591 927extern BOOL tcp_fastopen_ok; /* appears to be supported by kernel */
0ab63f3d 928extern blob tcp_fastopen_nodata; /* for zero-data TFO connect requests */
1ccd5f67 929extern BOOL tcp_in_fastopen; /* conn usefully used fastopen */
a2673768 930extern BOOL tcp_in_fastopen_logged; /* one-time logging */
059ec3d9 931extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
1ccd5f67 932extern int tcp_out_fastopen; /* 0: no 1: conn used 2: useful */
a2673768 933extern BOOL tcp_out_fastopen_logged; /* one-time logging */
5dc43717
JJ		 934#ifdef USE_TCP_WRAPPERS
935extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
936#endif
8669f003 937extern int test_harness_load_avg; /* For use when testing */
059ec3d9
PH		 938extern int thismessage_size_limit; /* Limit for this message */
939extern int timeout_frozen_after; /* Max time to keep frozen messages */
940extern BOOL timestamps_utc; /* Use UTC for all times */
d68218c7 941
181d9bf8 942extern uschar *transport_name; /* Name of transport last started */
059ec3d9 943extern int transport_count; /* Count of bytes transported */
332f5cf3 944extern int transport_newlines; /* Accurate count of number of newline chars transported */
55414b25 945extern const uschar **transport_filter_argv; /* For on-the-fly filtering */
059ec3d9 946extern int transport_filter_timeout; /* Timeout for same */
2e2a30b4 947extern BOOL transport_filter_timed_out; /* True if it did */
059ec3d9
PH		 948
949extern transport_info transports_available[]; /* Vector of available transports */
950extern transport_instance *transports; /* Chain of instantiated transports */
951extern transport_instance transport_defaults; /* Default values */
952
953extern int transport_write_timeout;/* Set to time out individual writes */
954
955extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
956extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
957extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
958extern tree_node *tree_unusable; /* Tree of unusable addresses */
959
960extern BOOL trusted_caller; /* Caller is trusted */
e2f5dc15 961extern BOOL trusted_config; /* Configuration file is trusted */
059ec3d9
PH		 962extern gid_t *trusted_groups; /* List of trusted groups */
963extern uid_t *trusted_users; /* List of trusted users */
964extern uschar *timezone_string; /* Required timezone setting */
965
966extern uschar *unknown_login; /* To use when login id unknown */
967extern uschar *unknown_username; /* Ditto */
968extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
969extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
970extern uschar *uucp_from_sender; /* For building the sender */
971
972extern uschar *warn_message_file; /* Template for warning messages */
973extern uschar *warnmsg_delay; /* String form of delay time */
974extern uschar *warnmsg_recipients; /* Recipients of warning message */
975extern BOOL write_rejectlog; /* Control of reject logging */
976
aec45841 977extern uschar *verify_mode; /* Running a router in verify mode */
059ec3d9
PH		 978extern uschar *version_copyright; /* Copyright notice */
979extern uschar *version_date; /* Date of compilation */
980extern uschar *version_cnumber; /* Compile number */
981extern uschar *version_string; /* Version string */
982
983extern int warning_count; /* Delay warnings sent for this msg */
984
985/* End of globals.h */
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