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Diffstat (limited to 'src/globals.h')
| -rw-r--r-- | src/globals.h | 1091 |
1 files changed, 1091 insertions, 0 deletions
diff --git a/src/globals.h b/src/globals.h new file mode 100644 index 0000000..bb81155 --- /dev/null +++ b/src/globals.h @@ -0,0 +1,1091 @@ +/************************************************* +* Exim - an Internet mail transport agent * +*************************************************/ + +/* Copyright (c) University of Cambridge 1995 - 2018 */ +/* Copyright (c) The Exim Maintainers 2020 */ +/* See the file NOTICE for conditions of use and distribution. */ + +/* Almost all the global variables are defined together in this one header, so +that they are easy to find. However, those that are visible during the +compilation of the local_scan() function are defined separately in the +local_scan.h header file. */ + +/* First put any specials that are required for some operating systems. */ + +#ifdef NEED_H_ERRNO +extern int h_errno; +#endif + +/* We need to be careful about width of int and atomicity in signal handlers, +especially with the rise of 64-bit systems breaking older assumptions. But +sig_atomic_t comes from signal.h so can't go into mytypes.h without including +signal support in local_scan, which seems precipitous. */ +typedef volatile sig_atomic_t SIGNAL_BOOL; + +/* Now things that are present only when configured. */ + +#ifdef EXIM_PERL +extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */ +extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */ +extern BOOL opt_perl_started; /* Set once interpreter started */ +extern BOOL opt_perl_taintmode; /* Enable taint mode in Perl */ +#endif + +#ifdef EXPAND_DLFUNC +extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */ +#endif + +#ifdef LOOKUP_IBASE +extern uschar *ibase_servers; +#endif + +#ifdef LOOKUP_LDAP +extern uschar *eldap_ca_cert_dir; /* Directory with CA certificates */ +extern uschar *eldap_ca_cert_file; /* CA certificate file */ +extern uschar *eldap_cert_file; /* Certificate file */ +extern uschar *eldap_cert_key; /* Certificate key file */ +extern uschar *eldap_cipher_suite; /* Allowed cipher suite */ +extern uschar *eldap_default_servers; /* List of default servers */ +extern uschar *eldap_require_cert; /* Peer certificate checking strategy */ +extern BOOL eldap_start_tls; /* Use STARTTLS */ +extern int eldap_version; /* LDAP version */ +#endif + +#ifdef LOOKUP_MYSQL +extern uschar *mysql_servers; /* List of servers and connect info */ +#endif + +#ifdef LOOKUP_ORACLE +extern uschar *oracle_servers; /* List of servers and connect info */ +#endif + +#ifdef LOOKUP_PGSQL +extern uschar *pgsql_servers; /* List of servers and connect info */ +#endif + +#ifdef LOOKUP_REDIS +extern uschar *redis_servers; /* List of servers and connect info */ +#endif + +#ifdef LOOKUP_SQLITE +extern uschar *sqlite_dbfile; /* Filname for database */ +extern int sqlite_lock_timeout; /* Internal lock waiting timeout */ +#endif + +#ifdef SUPPORT_MOVE_FROZEN_MESSAGES +extern BOOL move_frozen_messages; /* Get them out of the normal directory */ +#endif + +/* These variables are outside the #ifdef because it keeps the code less +cluttered in several places (e.g. during logging) if we can always refer to +them. Also, the tls_ variables are now always visible. */ + +typedef struct { + client_conn_ctx active; /* fd/socket when in a TLS session, and ptr to TLS context */ + int bits; /* bits used in TLS session */ + BOOL certificate_verified; /* Client certificate verified */ +#ifdef SUPPORT_DANE + BOOL dane_verified; /* ... via DANE */ + int tlsa_usage; /* TLSA record(s) usage */ +#endif + uschar *cipher; /* Cipher used */ + const uschar *cipher_stdname; /* Cipher used, RFC version */ + const uschar *ver; /* TLS version */ + + BOOL on_connect; /* For older MTAs that don't STARTTLS */ + uschar *on_connect_ports; /* Ports always tls-on-connect */ + void *ourcert; /* Certificate we presented, binary */ + void *peercert; /* Certificate of peer, binary */ + uschar *peerdn; /* DN from peer */ + uschar *sni; /* Server Name Indication */ + uschar *channelbinding; /* b64'd data identifying channel, for authenticators */ + enum { + OCSP_NOT_REQ=0, /* not requested */ + OCSP_NOT_RESP, /* no response to request */ + OCSP_VFY_NOT_TRIED, /* response not verified */ + OCSP_FAILED, /* verify failed */ + OCSP_VFIED /* verified */ + } ocsp; /* Stapled OCSP status */ +#ifdef EXPERIMENTAL_TLS_RESUME + unsigned resumption; /* Session resumption */ + BOOL host_resumable:1; + BOOL ticket_received:1; +#endif + BOOL verify_override:1; /* certificate_verified only due to tls_try_verify_hosts */ + BOOL ext_master_secret:1; /* extended-master-secret was used */ +} tls_support; +extern tls_support tls_in; +extern tls_support tls_out; + +#ifndef DISABLE_TLS +extern BOOL gnutls_compat_mode; /* Less security, more compatibility */ +extern BOOL gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */ +extern uschar *openssl_options; /* OpenSSL compatibility options */ +extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */ +extern uschar *tls_certificate; /* Certificate file */ +extern uschar *tls_crl; /* CRL File */ +extern int tls_dh_max_bits; /* don't accept higher lib suggestions */ +extern uschar *tls_dhparam; /* DH param file */ +extern uschar *tls_eccurve; /* EC curve */ +# ifndef DISABLE_OCSP +extern uschar *tls_ocsp_file; /* OCSP stapling proof file */ +# endif +extern uschar *tls_privatekey; /* Private key file */ +extern BOOL tls_remember_esmtp; /* For YAEB */ +extern uschar *tls_require_ciphers; /* So some can be avoided */ +# ifdef EXPERIMENTAL_TLS_RESUME +extern uschar *tls_resumption_hosts; /* TLS session resumption */ +# endif +extern uschar *tls_try_verify_hosts; /* Optional client verification */ +extern uschar *tls_verify_certificates;/* Path for certificates to check */ +extern uschar *tls_verify_hosts; /* Mandatory client verification */ +#endif +extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */ + +extern uschar *dsn_envid; /* DSN envid string */ +extern int dsn_ret; /* DSN ret type*/ +extern const pcre *regex_DSN; /* For recognizing DSN settings */ +extern uschar *dsn_advertise_hosts; /* host for which TLS is advertised */ + +/* Input-reading functions for messages, so we can use special ones for +incoming TCP/IP. */ + +extern int (*lwr_receive_getc)(unsigned); +extern uschar * (*lwr_receive_getbuf)(unsigned *); +extern int (*lwr_receive_ungetc)(int); +extern int (*receive_getc)(unsigned); +extern uschar * (*receive_getbuf)(unsigned *); +extern void (*receive_get_cache)(void); +extern int (*receive_ungetc)(int); +extern int (*receive_feof)(void); +extern int (*receive_ferror)(void); +extern BOOL (*receive_smtp_buffered)(void); + + +/* For clearing, saving, restoring address expansion variables. We have to have +the size of this vector set explicitly, because it is referenced from more than +one module. */ + +extern const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT]; + +/* Flags for which we don't need an address ever so can use a bitfield */ + +extern struct global_flags { + BOOL acl_temp_details :1; /* TRUE to give details for 4xx error */ + BOOL active_local_from_check :1; /* For adding Sender: (switchable) */ + BOOL active_local_sender_retain :1; /* For keeping Sender: (switchable) */ + BOOL address_test_mode :1; /* True for -bt */ + BOOL admin_user :1; /* True if caller can do admin */ + BOOL allow_auth_unadvertised :1; /* As it says */ + BOOL allow_unqualified_recipient :1; /* For local messages */ /* As it says */ + BOOL allow_unqualified_sender :1; /* Reset for SMTP */ /* Ditto */ + BOOL authentication_local :1; /* TRUE if non-smtp (implicit authentication) */ + + BOOL background_daemon :1; /* Set FALSE to keep in foreground */ + BOOL bdat_readers_wanted :1; /* BDAT-handling to be pushed on readfunc stack */ + + BOOL chunking_offered :1; + BOOL config_changed :1; /* True if -C used */ + BOOL continue_more :1; /* Flag more addresses waiting */ + + BOOL daemon_listen :1; /* True if listening required */ + BOOL debug_daemon :1; /* Debug the daemon process only */ + BOOL deliver_firsttime :1; /* True for first delivery attempt */ + BOOL deliver_force :1; /* TRUE if delivery was forced */ + BOOL deliver_freeze :1; /* TRUE if delivery is frozen */ + BOOL deliver_force_thaw :1; /* TRUE to force thaw in queue run */ + BOOL deliver_manual_thaw :1; /* TRUE if manually thawed */ + BOOL deliver_selectstring_regex :1; /* String is regex */ + BOOL deliver_selectstring_sender_regex :1; /* String is regex */ + BOOL disable_callout_flush :1; /* Don't flush before callouts */ + BOOL disable_delay_flush :1; /* Don't flush before "delay" in ACL */ + BOOL disable_logging :1; /* Disables log writing when TRUE */ +#ifndef DISABLE_DKIM + BOOL dkim_disable_verify :1; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */ + BOOL dkim_init_done :1; /* lazy-init status */ +#endif +#ifdef SUPPORT_DMARC + BOOL dmarc_has_been_checked :1; /* Global variable to check if test has been called yet */ + BOOL dmarc_disable_verify :1; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */ + BOOL dmarc_enable_forensic :1; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */ +#endif + BOOL dont_deliver :1; /* TRUE for -N option */ + BOOL dot_ends :1; /* TRUE if "." ends non-SMTP input */ + + BOOL enable_dollar_recipients :1; /* Make $recipients available */ + BOOL expand_string_forcedfail :1; /* TRUE if failure was "expected" */ + + BOOL filter_running :1; /* TRUE while running a filter */ + + BOOL header_rewritten :1; /* TRUE if header changed by router */ + BOOL helo_verified :1; /* True if HELO verified */ + BOOL helo_verify_failed :1; /* True if attempt failed */ + BOOL host_checking_callout :1; /* TRUE if real callout wanted */ + BOOL host_find_failed_syntax :1; /* DNS syntax check failure */ + + BOOL inetd_wait_mode :1; /* Whether running in inetd wait mode */ + BOOL is_inetd :1; /* True for inetd calls */ + + BOOL local_error_message :1; /* True if handling one of these */ + BOOL log_testing_mode :1; /* TRUE in various testing modes */ + +#ifdef WITH_CONTENT_SCAN + BOOL no_mbox_unspool :1; /* don't unlink files in /scan directory */ +#endif + BOOL no_multiline_responses :1; /* For broken clients */ + + BOOL parse_allow_group :1; /* Allow group syntax */ + BOOL parse_found_group :1; /* In the middle of a group */ + BOOL pipelining_enable :1; /* As it says */ +#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) + BOOL proxy_session_failed :1; /* TRUE if required proxy negotiation failed */ +#endif + + BOOL queue_2stage :1; /* Run queue in 2-stage manner */ + BOOL queue_only_policy :1; /* ACL or local_scan wants queue_only */ + BOOL queue_run_first_delivery :1; /* If TRUE, first deliveries only */ + BOOL queue_run_force :1; /* TRUE to force during queue run */ + BOOL queue_run_local :1; /* Local deliveries only in queue run */ + BOOL queue_running :1; /* TRUE for queue running process and */ + BOOL queue_smtp :1; /* Disable all immediate SMTP (-odqs)*/ + + BOOL really_exim :1; /* FALSE in utilities */ + BOOL receive_call_bombout :1; /* Flag for crashing log */ + BOOL recipients_discarded :1; /* By an ACL */ + BOOL running_in_test_harness :1; /*TRUE when running_status is patched */ + + BOOL search_find_defer :1; /* Set TRUE if lookup deferred */ + BOOL sender_address_forced :1; /* Set by -f */ + BOOL sender_host_notsocket :1; /* Set for -bs and -bS */ + BOOL sender_host_unknown :1; /* TRUE for -bs and -bS except inetd */ + BOOL sender_local :1; /* TRUE for local senders */ + BOOL sender_name_forced :1; /* Set by -F */ + BOOL sender_set_untrusted :1; /* Sender set by untrusted caller */ + BOOL smtp_authenticated :1; /* Sending client has authenticated */ +#ifndef DISABLE_PIPE_CONNECT + BOOL smtp_in_early_pipe_advertised :1; /* server advertised PIPE_CONNECT */ + BOOL smtp_in_early_pipe_no_auth :1; /* too many authenticator names */ + BOOL smtp_in_early_pipe_used :1; /* client did send early data */ +#endif + BOOL smtp_in_pipelining_advertised :1; /* server advertised PIPELINING */ + BOOL smtp_in_pipelining_used :1; /* server noted client using PIPELINING */ + BOOL spool_file_wireformat :1; /* current -D file has CRLF rather than NL */ + BOOL submission_mode :1; /* Can be forced from ACL */ + BOOL suppress_local_fixups :1; /* Can be forced from ACL */ + BOOL suppress_local_fixups_default :1; /* former is reset to this; override with -G */ + BOOL synchronous_delivery :1; /* TRUE if -odi is set */ + BOOL system_filtering :1; /* TRUE when running system filter */ + + BOOL taint_check_slow :1; /* malloc/mmap are not returning distinct ranges */ + BOOL testsuite_delays :1; /* interprocess sequencing delays, under testsuite */ + BOOL tcp_fastopen_ok :1; /* appears to be supported by kernel */ + BOOL tcp_in_fastopen :1; /* conn usefully used fastopen */ + BOOL tcp_in_fastopen_data :1; /* fastopen carried data */ + BOOL tcp_in_fastopen_logged :1; /* one-time logging */ + BOOL tcp_out_fastopen_logged :1; /* one-time logging */ + BOOL timestamps_utc :1; /* Use UTC for all times */ + BOOL transport_filter_timed_out :1; /* True if it did */ + BOOL trusted_caller :1; /* Caller is trusted */ + BOOL trusted_config :1; /* Configuration file is trusted */ +} f; + + +/* General global variables */ + +extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */ +extern uschar *add_environment; /* List of environment variables to add */ +extern header_line *acl_added_headers; /* Headers added by an ACL */ +extern tree_node *acl_anchor; /* Tree of named ACLs */ +extern uschar *acl_arg[9]; /* Argument to ACL call */ +extern int acl_narg; /* Number of arguments to ACL call */ +extern int acl_level; /* Nesting depth and debug indent */ +extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */ +#ifdef WITH_CONTENT_SCAN +extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */ +#endif +extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */ +extern uschar *acl_removed_headers; /* Headers deleted by an ACL */ +extern uschar *acl_smtp_auth; /* ACL run for AUTH */ +extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */ +extern uschar *acl_smtp_data; /* ACL run after DATA received */ +#ifndef DISABLE_PRDR +extern uschar *acl_smtp_data_prdr; /* ACL run after DATA received if in PRDR mode*/ +const extern pcre *regex_PRDR; /* For recognizing PRDR settings */ +#endif +#ifndef DISABLE_DKIM +extern uschar *acl_smtp_dkim; /* ACL run for DKIM signatures / domains */ +#endif +extern uschar *acl_smtp_etrn; /* ACL run for ETRN */ +extern uschar *acl_smtp_expn; /* ACL run for EXPN */ +extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */ +extern uschar *acl_smtp_mail; /* ACL run for MAIL */ +extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */ +#ifdef WITH_CONTENT_SCAN +extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */ +#endif +extern uschar *acl_smtp_notquit; /* ACL run for disconnects */ +extern uschar *acl_smtp_predata; /* ACL run for DATA command */ +extern uschar *acl_smtp_quit; /* ACL run for QUIT */ +extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */ +extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */ +extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */ +extern tree_node *acl_var_c; /* ACL connection variables */ +extern tree_node *acl_var_m; /* ACL message variables */ +extern uschar *acl_verify_message; /* User message for verify failure */ +extern string_item *acl_warn_logged; /* Logged lines */ +extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */ +extern uschar *acl_wherenames[]; /* Names for messages */ +extern address_item *addr_duplicate; /* Duplicate address list */ +extern address_item address_defaults; /* Default data for address item */ +extern uschar *address_file; /* Name of file when delivering to one */ +extern uschar *address_pipe; /* Pipe command when delivering to one */ +extern tree_node *addresslist_anchor; /* Tree of defined address lists */ +extern int addresslist_count; /* Number defined */ +extern gid_t *admin_groups; /* List of admin groups */ +extern BOOL allow_domain_literals; /* As it says */ +extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */ +#ifdef EXPERIMENTAL_ARC +extern struct arc_set *arc_received; /* highest ARC instance evaluation struct */ +extern int arc_received_instance; /* highest ARC instance number in headers */ +extern int arc_oldest_pass; /* lowest passing instance number in headers */ +extern const uschar *arc_state; /* verification state */ +extern const uschar *arc_state_reason; +#endif +extern BOOL allow_utf8_domains; /* For experimenting */ +extern uschar *authenticated_fail_id; /* ID that failed authentication */ +extern uschar *authenticated_id; /* ID that was authenticated */ +extern uschar *authenticated_sender; /* From AUTH on MAIL */ +extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */ +extern uschar *auth_advertise_hosts; /* Only advertise to these */ +extern auth_info auths_available[]; /* Vector of available auth mechanisms */ +extern auth_instance *auths; /* Chain of instantiated auths */ +extern auth_instance auth_defaults; /* Default values */ +extern uschar *auth_defer_msg; /* Error message for log */ +extern uschar *auth_defer_user_msg; /* Error message for user */ +extern uschar *auth_vars[]; /* $authn variables */ +extern int auto_thaw; /* Auto-thaw interval */ +#ifdef WITH_CONTENT_SCAN +extern int av_failed; /* TRUE if the AV process failed */ +extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */ +#endif + +extern uschar *base62_chars; /* Table of base-62 characters */ +extern uschar *bi_command; /* Command for -bi option */ +extern uschar *big_buffer; /* Used for various temp things */ +extern int big_buffer_size; /* Current size (can expand) */ +#ifdef EXPERIMENTAL_BRIGHTMAIL +extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */ +extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */ +extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */ +extern uschar *bmi_config_file; /* Brightmail config file */ +extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */ +extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */ +extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */ +#endif +extern int bsmtp_transaction_linecount; /* Start of last transaction */ +extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */ +extern uschar *bounce_message_file; /* Template file */ +extern uschar *bounce_message_text; /* One-liner */ +extern uschar *bounce_recipient; /* When writing an errmsg */ +extern BOOL bounce_return_body; /* Include body in returned message */ +extern int bounce_return_linesize_limit; /* Max line length in return */ +extern BOOL bounce_return_message; /* Include message in bounce */ +extern int bounce_return_size_limit; /* Max amount to return */ +extern uschar *bounce_sender_authentication; /* AUTH address for bounces */ + +extern uschar *callout_address; /* Address used for a malware/spamd/verify etc. callout */ +extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */ +extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */ +extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */ +extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */ +extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */ +extern uschar *check_dns_names_pattern;/* Regex for syntax check */ +extern int check_log_inodes; /* Minimum for message acceptance */ +extern int_eximarith_t check_log_space; /* Minimum for message acceptance */ +extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */ +extern int check_spool_inodes; /* Minimum for message acceptance */ +extern int_eximarith_t check_spool_space; /* Minimum for message acceptance */ +extern uschar *chunking_advertise_hosts; /* RFC 3030 CHUNKING */ +extern unsigned chunking_datasize; +extern unsigned chunking_data_left; +extern chunking_state_t chunking_state; +extern uschar *client_authenticator; /* Authenticator name used for smtp delivery */ +extern uschar *client_authenticated_id; /* "login" name used for SMTP AUTH */ +extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */ +extern int clmacro_count; /* Number of command line macros */ +extern uschar *clmacros[]; /* Copy of them, for re-exec */ +extern BOOL commandline_checks_require_admin; /* belt and braces for insecure setups */ +extern int connection_max_messages;/* Max down one SMTP connection */ +extern FILE *config_file; /* Configuration file */ +extern const uschar *config_filename; /* Configuration file name */ +extern gid_t config_gid; /* Additional group owner */ +extern int config_lineno; /* Line number */ +extern uschar *config_main_filelist; /* List of possible config files */ +extern uschar *config_main_filename; /* File name actually used */ +extern uschar *config_main_directory; /* Directory where the main config file was found */ +extern uid_t config_uid; /* Additional owner */ +extern uschar *continue_proxy_cipher; /* TLS cipher for proxied continued delivery */ +extern BOOL continue_proxy_dane; /* proxied conn is DANE */ +extern uschar *continue_proxy_sni; /* proxied conn SNI */ +extern uschar *continue_hostname; /* Host for continued delivery */ +extern uschar *continue_host_address; /* IP address for ditto */ +extern int continue_sequence; /* Sequence num for continued delivery */ +extern uschar *continue_transport; /* Transport for continued delivery */ + +extern uschar *csa_status; /* Client SMTP Authorization result */ + +typedef struct { + unsigned callout_hold_only:1; /* Conn is only for verify callout */ + unsigned delivery:1; /* When to attempt */ + unsigned defer_pass:1; /* Pass 4xx to caller rather than spooling */ + unsigned is_tls:1; /* Conn has TLS active */ + client_conn_ctx cctx; /* Open connection */ + int nrcpt; /* Count of addresses */ + uschar * transport; /* Name of transport */ + uschar * interface; /* (address of) */ + uschar * snd_ip; /* sending_ip_address */ + int snd_port; /* sending_port */ + unsigned peer_options; /* smtp_peer_options */ + host_item host; /* Host used */ + address_item addr; /* (Chain of) addresses */ +} cut_t; +extern cut_t cutthrough; /* Deliver-concurrently */ + +extern int daemon_notifier_fd; /* Unix socket for notifications */ +extern uschar *daemon_smtp_port; /* Can be a list of ports */ +extern int daemon_startup_retries; /* Number of times to retry */ +extern int daemon_startup_sleep; /* Sleep between retries */ + +#ifdef EXPERIMENTAL_DCC +extern BOOL dcc_direct_add_header; /* directly add header */ +extern uschar *dcc_header; /* dcc header */ +extern uschar *dcc_result; /* dcc result */ +extern uschar *dccifd_address; /* address of the dccifd daemon */ +extern uschar *dccifd_options; /* options for the dccifd daemon */ +#endif + +extern int debug_fd; /* The fd for debug_file */ +extern FILE *debug_file; /* Where to write debugging info */ +extern int debug_notall[]; /* Debug options excluded from +all */ +extern bit_table debug_options[]; /* Table of debug options */ +extern int debug_options_count; /* Size of table */ +extern BOOL debug_store; /* Do extra checks on store_reset */ +extern int delay_warning[]; /* Times between warnings */ +extern uschar *delay_warning_condition; /* Condition string for warnings */ +extern BOOL delivery_date_remove; /* Remove delivery-date headers */ + +extern uschar *deliver_address_data; /* Arbitrary data for an address */ +extern int deliver_datafile; /* FD for data part of message */ +extern const uschar *deliver_domain; /* The local domain for delivery */ +extern uschar *deliver_domain_data; /* From domain lookup */ +extern const uschar *deliver_domain_orig; /* The original local domain for delivery */ +extern const uschar *deliver_domain_parent; /* The parent domain for delivery */ +extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */ +extern time_t deliver_frozen_at; /* Time of freezing */ +extern uschar *deliver_home; /* Home directory for pipes */ +extern const uschar *deliver_host; /* (First) host for routed local deliveries */ + /* Remote host for filter */ +extern const uschar *deliver_host_address; /* Address for remote delivery filter */ +extern int deliver_host_port; /* Address for remote delivery filter */ +extern uschar *deliver_in_buffer; /* Buffer for copying file */ +extern ino_t deliver_inode; /* Inode for appendfile */ +extern uschar *deliver_localpart; /* The local part for delivery */ +extern uschar *deliver_localpart_data; /* From local part lookup (de-tainted) */ +extern uschar *deliver_localpart_orig; /* The original local part for delivery */ +extern uschar *deliver_localpart_parent; /* The parent local part for delivery */ +extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */ +extern uschar *deliver_localpart_prefix_v; /* The stripped-prefix variable portion, if any */ +extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */ +extern uschar *deliver_localpart_suffix_v; /* The stripped-suffix variable portion, if any */ +extern uschar *deliver_out_buffer; /* Buffer for copying file */ +extern int deliver_queue_load_max; /* Different value for queue running */ +extern address_item *deliver_recipients; /* Current set of addresses */ +extern uschar *deliver_selectstring; /* For selecting by recipient */ +extern uschar *deliver_selectstring_sender; /* For selecting by sender */ +#ifdef ENABLE_DISABLE_FSYNC +extern BOOL disable_fsync; /* Not for normal use */ +#endif +extern BOOL disable_ipv6; /* Don't do any IPv6 things */ + +#ifndef DISABLE_DKIM +extern unsigned dkim_collect_input; /* Runtime count of dkim signtures; tracks whether SMTP input is fed to DKIM validation */ +extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */ +extern int dkim_key_length; /* Expansion variable, length of signing key in bits */ +extern void *dkim_signatures; /* Actually a (pdkim_signature *) but most files do not need to know */ +extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */ +extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */ +extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */ +extern uschar *dkim_verify_hashes; /* Preference order for signatures */ +extern uschar *dkim_verify_keytypes; /* Preference order for signatures */ +extern uschar *dkim_verify_min_keysizes; /* list of minimum key sizes, keyed by algo */ +extern BOOL dkim_verify_minimal; /* Shortcircuit signture verification */ +extern uschar *dkim_verify_overall; /* First successful domain verified, or null */ +extern uschar *dkim_verify_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */ +extern uschar *dkim_verify_status; /* result for this signature */ +extern uschar *dkim_verify_reason; /* result for this signature */ +#endif +#ifdef SUPPORT_DMARC +extern uschar *dmarc_domain_policy; /* Expansion for declared policy of used domain */ +extern uschar *dmarc_forensic_sender; /* Set sender address for forensic reports */ +extern uschar *dmarc_history_file; /* Expansion variable, file to store dmarc results */ +extern uschar *dmarc_status; /* Expansion variable, one word value */ +extern uschar *dmarc_status_text; /* Expansion variable, human readable value */ +extern uschar *dmarc_tld_file; /* Mozilla TLDs text file */ +extern uschar *dmarc_used_domain; /* Expansion variable, domain libopendmarc chose for DMARC policy lookup */ +#endif + +extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */ +extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */ +extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */ +extern int dns_cname_loops; /* Follow CNAMEs returned by resolver to this depth */ +extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */ +#ifdef SUPPORT_DANE +extern int dns_dane_ok; /* Ok to use DANE when checking TLS authenticity */ +#endif +extern int dns_retrans; /* Retransmission time setting */ +extern int dns_retry; /* Number of retries */ +extern int dns_dnssec_ok; /* When constructing DNS query, set DO flag */ +extern uschar *dns_trust_aa; /* DNSSEC trust AA as AD */ +extern int dns_use_edns0; /* Coerce EDNS0 support on/off in resolver. */ +extern uschar *dnslist_domain; /* DNS (black) list domain */ +extern uschar *dnslist_matched; /* DNS (black) list matched key */ +extern uschar *dnslist_text; /* DNS (black) list text message */ +extern uschar *dnslist_value; /* DNS (black) list IP address */ +extern tree_node *domainlist_anchor; /* Tree of defined domain lists */ +extern int domainlist_count; /* Number defined */ + +/* This option is now a no-opt, retained for compatibility */ +extern BOOL drop_cr; /* For broken local MUAs */ + +extern uschar *dsn_from; /* From: string for DSNs */ + +extern BOOL envelope_to_remove; /* Remove envelope_to_headers */ +extern int errno_quota; /* Quota errno in this OS */ +extern int error_handling; /* Error handling style */ +extern uschar *errors_copy; /* For taking copies of errors */ +extern uschar *errors_reply_to; /* Reply-to for error messages */ +extern int errors_sender_rc; /* Return after message to sender*/ + +#ifndef DISABLE_EVENT +extern uschar *event_action; /* expansion for delivery events */ +extern uschar *event_data; /* event data */ +extern int event_defer_errno; /* error number set when a remote delivery is deferred with a host error */ +extern const uschar *event_name; /* event classification */ +#endif + +extern gid_t exim_gid; /* To be used with exim_uid */ +extern BOOL exim_gid_set; /* TRUE if exim_gid set */ +extern uschar *exim_path; /* Path to exec exim */ +extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */ +extern uid_t exim_uid; /* Non-root uid for exim */ +extern BOOL exim_uid_set; /* TRUE if exim_uid set */ +extern int expand_level; /* Nesting depth; indent for debug */ +extern int expand_forbid; /* RDO flags for forbidding things */ +extern int expand_nlength[]; /* Lengths of numbered strings */ +extern int expand_nmax; /* Max numerical value */ +extern uschar *expand_nstring[]; /* Numbered strings */ +extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */ +extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */ + +extern int fake_response; /* Fake FAIL or DEFER response to data */ +extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */ +extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */ +extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */ +extern int filter_test; /* Filter test type */ +extern uschar *filter_test_sfile; /* System filter test file */ +extern uschar *filter_test_ufile; /* User filter test file */ +extern uschar *filter_thisaddress; /* For address looping */ +extern int finduser_retries; /* Retry count for getpwnam() */ +extern uid_t fixed_never_users[]; /* Can't be overridden */ +extern uschar *freeze_tell; /* Message on (some) freezings */ +extern uschar *freeze_tell_config; /* The configured setting */ +extern uschar *fudged_queue_times; /* For use in test harness */ + +extern uschar *gecos_name; /* To be expanded when pattern matches */ +extern uschar *gecos_pattern; /* Pattern to match */ +extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */ + +extern volatile sig_atomic_t had_command_timeout; /* Alarm sighandler called */ +extern volatile sig_atomic_t had_command_sigterm; /* TERM sighandler called */ +extern volatile sig_atomic_t had_data_timeout; /* Alarm sighandler called */ +extern volatile sig_atomic_t had_data_sigint; /* TERM/INT sighandler called */ +extern int header_insert_maxlen; /* Max for inserting headers */ +extern int header_maxsize; /* Max total length for header */ +extern int header_line_maxsize; /* Max for an individual line */ +extern header_name header_names[]; /* Table of header names */ +extern int header_names_size; /* Number of entries */ +extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */ +extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */ +extern uschar *helo_lookup_domains; /* If these given, lookup host name */ +extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */ +extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */ +extern const uschar *hex_digits; /* Used in several places */ +extern uschar *hold_domains; /* Hold up deliveries to these */ +extern uschar *host_data; /* Obtained from lookup in ACL */ +extern uschar *host_lookup; /* For which IP addresses are always looked up */ +extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */ +extern BOOL host_lookup_failed; /* TRUE if lookup failed */ +extern uschar *host_lookup_order; /* Order of host lookup types */ +extern uschar *host_lookup_msg; /* Text for why it failed */ +extern int host_number; /* For sharing spools */ +extern uschar *host_number_string; /* For expanding */ +extern uschar *host_reject_connection; /* Reject these hosts */ +extern tree_node *hostlist_anchor; /* Tree of defined host lists */ +extern int hostlist_count; /* Number defined */ +extern uschar *hosts_connection_nolog; /* Limits the logging option */ +extern uschar *hosts_treat_as_local; /* For routing */ + +extern int ignore_bounce_errors_after; /* Keep them for this time. */ +extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */ +extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */ +extern int inetd_wait_timeout; /* Timeout for inetd wait mode */ +extern uschar *initial_cwd; /* The directory we where in at startup */ +extern uschar *iterate_item; /* Item from iterate list */ + +extern int journal_fd; /* Fd for journal file */ + +extern uschar *keep_environment; /* Whitelist for environment variables */ +extern int keep_malformed; /* Time to keep malformed messages */ + +extern uschar *eldap_dn; /* Where LDAP DNs are left */ +extern int load_average; /* Most recently read load average */ +extern BOOL local_from_check; /* For adding Sender: (global value) */ +extern uschar *local_from_prefix; /* Permitted prefixes */ +extern uschar *local_from_suffix; /* Permitted suffixes */ +extern uschar *local_interfaces; /* For forcing specific interfaces */ +#ifdef HAVE_LOCAL_SCAN +extern uschar *local_scan_data; /* Text returned by local_scan() */ +extern optionlist local_scan_options[];/* Option list for local_scan() */ +extern int local_scan_options_count; /* Size of the list */ +extern int local_scan_timeout; /* Timeout for local_scan() */ +#endif +extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */ +extern gid_t local_user_gid; /* As it says; may be set in routers */ +extern uid_t local_user_uid; /* As it says; may be set in routers */ +extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */ +extern int localpartlist_count; /* Number defined */ +extern uschar *log_buffer; /* For constructing log entries */ +extern int log_default[]; /* Initialization list for log_selector */ +extern uschar *log_file_path; /* If unset, use default */ +extern int log_notall[]; /* Log options excluded from +all */ +extern bit_table log_options[]; /* Table of options */ +extern int log_options_count; /* Size of table */ +extern int log_reject_target; /* Target log for ACL rejections */ +extern unsigned int log_selector[]; /* Bit map of logging options */ +extern uschar *log_selector_string; /* As supplied in the config */ +extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */ +extern BOOL log_timezone; /* TRUE to include the timezone in log lines */ +extern uschar *login_sender_address; /* The actual sender address */ +extern lookup_info **lookup_list; /* Array of pointers to available lookups */ +extern int lookup_list_count; /* Number of entries in the list */ +extern uschar *lookup_dnssec_authenticated; /* AD status of dns lookup */ +extern int lookup_open_max; /* Max lookup files to cache */ +extern uschar *lookup_value; /* Value looked up from file */ + +extern macro_item *macros; /* Configuration macros */ +extern macro_item *macros_user; /* Non-builtin configuration macros */ +extern macro_item *mlast; /* Last item in macro list */ +extern uschar *mailstore_basename; /* For mailstore deliveries */ +#ifdef WITH_CONTENT_SCAN +extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */ +#endif +extern int max_received_linelength;/* What it says */ +extern int max_username_length; /* For systems with broken getpwnam() */ +extern int message_age; /* In seconds */ +extern uschar *message_body; /* Start of message body for filter */ +extern uschar *message_body_end; /* End of message body for filter */ +extern BOOL message_body_newlines; /* FALSE => remove newlines */ +extern int message_body_size; /* Sic */ +extern int message_body_visible; /* Amount visible in message_body */ +extern int message_ended; /* State of message reading and how ended */ +extern uschar *message_headers; /* When built */ +extern uschar message_id_option[]; /* -E<message-id> for use as option */ +extern uschar *message_id_external; /* External form of following */ +extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */ +extern uschar *message_id_text; /* Expanded to form message_id */ +extern struct timeval message_id_tv; /* Time used to create last message_id */ +extern int message_linecount; /* As it says */ +extern BOOL message_logs; /* TRUE to write message logs */ +extern int message_size; /* Size of message */ +extern uschar *message_size_limit; /* As it says */ +#ifdef SUPPORT_I18N +extern BOOL message_smtputf8; /* Internationalized mail handling */ +extern int message_utf8_downconvert; /* convert from utf8 */ +const extern pcre *regex_UTF8; /* For recognizing SMTPUTF8 settings */ +#endif +extern uschar message_subdir[]; /* Subdirectory for messages */ +extern uschar *message_reference; /* Reference for error messages */ + +/* MIME ACL expandables */ +#ifdef WITH_CONTENT_SCAN +extern int mime_anomaly_level; +extern const uschar *mime_anomaly_text; +extern uschar *mime_boundary; +extern uschar *mime_charset; +extern uschar *mime_content_description; +extern uschar *mime_content_disposition; +extern uschar *mime_content_id; +extern unsigned int mime_content_size; +extern uschar *mime_content_transfer_encoding; +extern uschar *mime_content_type; +extern uschar *mime_decoded_filename; +extern uschar *mime_filename; +extern int mime_is_multipart; +extern int mime_is_coverletter; +extern int mime_is_rfc822; +extern int mime_part_count; +#endif + +extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */ + +extern uid_t *never_users; /* List of uids never to be used */ +extern uschar *notifier_socket; /* Name for daemon notifier unix-socket */ + +extern const int on; /* For setsockopt */ +extern const int off; + +extern optionlist optionlist_auths[]; /* These option lists are made */ +extern int optionlist_auths_size; /* global so that readconf can */ +extern optionlist optionlist_routers[]; /* see them for printing out */ +extern int optionlist_routers_size; /* the options. */ +extern optionlist optionlist_transports[]; +extern int optionlist_transports_size; + +extern uid_t original_euid; /* Original effective uid */ +extern gid_t originator_gid; /* Gid of whoever wrote spool file */ +extern uschar *originator_login; /* Login of same */ +extern uschar *originator_name; /* Full name of same */ +extern uid_t originator_uid; /* Uid of ditto */ +extern uschar *override_local_interfaces; /* Value of -oX argument */ +extern uschar *override_pid_file_path; /* Value of -oP argument */ + +extern uschar *percent_hack_domains; /* Local domains for which '% operates */ +extern uschar *pid_file_path; /* For writing daemon pids */ +#ifndef DISABLE_PIPE_CONNECT +extern uschar *pipe_connect_advertise_hosts; /* for banner/EHLO pipelining */ +#endif +extern uschar *pipelining_advertise_hosts; /* As it says */ +#ifndef DISABLE_PRDR +extern BOOL prdr_enable; /* As it says */ +extern BOOL prdr_requested; /* Connecting mail server wants PRDR */ +#endif +extern BOOL preserve_message_logs; /* Save msglog files */ +extern uschar *primary_hostname; /* Primary name of this computer */ +extern BOOL print_topbitchars; /* Topbit chars are printing chars */ +extern uschar *process_info; /* For SIGUSR1 output */ +extern int process_info_len; +extern uschar *process_log_path; /* Alternate path */ +extern const uschar *process_purpose; /* for debug output */ +extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */ + +#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) +extern uschar *hosts_proxy; /* Hostlist which (require) use proxy protocol */ +extern uschar *proxy_external_address; /* IP of remote interface of proxy */ +extern int proxy_external_port; /* Port on remote interface of proxy */ +extern uschar *proxy_local_address; /* IP of local interface of proxy */ +extern int proxy_local_port; /* Port on local interface of proxy */ +extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */ +#endif + +extern uschar *prvscheck_address; /* Set during prvscheck expansion item */ +extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */ +extern uschar *prvscheck_result; /* Set during prvscheck expansion item */ + +extern const uschar *qualify_domain_recipient; /* Domain to qualify recipients with */ +extern uschar *qualify_domain_sender; /* Domain to qualify senders with */ +extern uschar *queue_domains; /* Queue these domains */ +#ifdef EXPERIMENTAL_QUEUE_RAMP +extern BOOL queue_fast_ramp; /* 2-phase queue-run overlap */ +#endif +extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */ + /* immediate children */ +extern pid_t queue_run_pid; /* PID of the queue running process or 0 */ +extern int queue_run_pipe; /* Pipe for synchronizing */ +extern int queue_interval; /* Queue running interval */ +extern uschar *queue_name; /* Name of queue, if nondefault spooling */ +extern uschar *queue_name_dest; /* Destination queue, for moving messages */ +extern BOOL queue_only; /* TRUE to disable immediate delivery */ +extern int queue_only_load; /* Max load before auto-queue */ +extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */ +extern uschar *queue_only_file; /* Queue if file exists/not-exists */ +extern BOOL queue_only_override; /* Allow override from command line */ +extern BOOL queue_run_in_order; /* As opposed to random */ +extern uschar *queue_run_max; /* Max queue runners */ +extern unsigned queue_size; /* items in queue */ +extern time_t queue_size_next; /* next time to evaluate queue_size */ +extern uschar *queue_smtp_domains; /* Ditto, for these domains */ + +extern unsigned int random_seed; /* Seed for random numbers */ +extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */ +extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */ +extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */ +extern uschar *raw_active_hostname; /* Pre-expansion */ +extern uschar *raw_sender; /* Before rewriting */ +extern uschar **raw_recipients; /* Before rewriting */ +extern int raw_recipients_count; +extern const uschar * rc_names[]; /* Mostly for debug output */ +extern int rcpt_count; /* Count of RCPT commands in a message */ +extern int rcpt_fail_count; /* Those that got 5xx */ +extern int rcpt_defer_count; /* Those that got 4xx */ +extern gid_t real_gid; /* Real gid */ +extern uid_t real_uid; /* Real user running program */ +extern int receive_linecount; /* Mainly for BSMTP errors */ +extern int receive_messagecount; /* Mainly for BSMTP errors */ +extern int receive_timeout; /* For non-SMTP acceptance */ +extern int received_count; /* Count of Received: headers */ +extern uschar *received_for; /* For "for" field */ +extern uschar *received_header_text; /* Definition of Received: header */ +extern int received_headers_max; /* Max count of Received: headers */ +extern struct timeval received_time; /* Time the message was received */ +extern struct timeval received_time_taken; /* Interval the message took to be received */ +extern uschar *recipient_data; /* lookup data for recipients */ +extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */ +extern uschar *recipient_verify_failure; /* What went wrong */ +extern int recipients_list_max; /* Maximum number fitting in list */ +extern int recipients_max; /* Max permitted */ +extern BOOL recipients_max_reject; /* If TRUE, reject whole message */ +extern const pcre *regex_AUTH; /* For recognizing AUTH settings */ +extern const pcre *regex_check_dns_names; /* For DNS name checking */ +extern const pcre *regex_From; /* For recognizing "From_" lines */ +extern const pcre *regex_CHUNKING; /* For recognizing CHUNKING (RFC 3030) */ +extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */ +extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */ +extern const pcre *regex_SIZE; /* For recognizing SIZE settings */ +#ifndef DISABLE_PIPE_CONNECT +extern const pcre *regex_EARLY_PIPE; /* For recognizing PIPE_CONNCT */ +#endif +extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */ +extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */ +extern uschar *regex_vars[]; /* $regexN variables */ +#ifdef WHITELIST_D_MACROS +extern const pcre *regex_whitelisted_macro; /* For -D macro values */ +#endif +#ifdef WITH_CONTENT_SCAN +extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */ +#endif +extern int remote_delivery_count; /* Number of remote addresses */ +extern int remote_max_parallel; /* Maximum parallel delivery */ +extern uschar *remote_sort_domains; /* Remote domain sorting order */ +extern retry_config *retries; /* Chain of retry config information */ +extern int retry_data_expire; /* When to expire retry data */ +extern int retry_interval_max; /* Absolute maximum */ +extern int retry_maximum_timeout; /* The maximum timeout */ +extern uschar *return_path; /* Return path for a message */ +extern BOOL return_path_remove; /* Remove return-path headers */ +extern int rewrite_existflags; /* Indicate which headers have rewrites */ +extern uschar *rfc1413_hosts; /* RFC hosts */ +extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */ +/* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */ +extern uid_t root_gid; /* The gid for root */ +extern uid_t root_uid; /* The uid for root */ +extern router_info routers_available[];/* Vector of available routers */ +extern router_instance *routers; /* Chain of instantiated routers */ +extern router_instance router_defaults;/* Default values */ +extern uschar *router_name; /* Name of router last started */ +extern tree_node *router_var; /* Variables set by router */ +extern ip_address_item *running_interfaces; /* Host's running interfaces */ +extern uschar *running_status; /* Flag string for testing */ +extern int runrc; /* rc from ${run} */ + +extern uschar *search_error_message; /* Details of lookup problem */ +extern uschar *self_hostname; /* Self host after routing->directors */ +extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */ +extern uschar *sender_address_data; /* address_data from sender verify */ +extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */ +extern uschar *sender_data; /* lookup result for senders */ +extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */ +extern uschar *sender_fullhost; /* Sender host name + address */ +extern BOOL sender_helo_dnssec; /* True if HELO verify used DNS and was DNSSEC */ +extern uschar *sender_helo_name; /* Host name from HELO/EHLO */ +extern uschar **sender_host_aliases; /* Points to list of alias names */ +extern uschar *sender_host_auth_pubname; /* Public-name of authentication method */ +extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */ +extern BOOL sender_host_dnssec; /* true if sender_host_name verified in DNSSEC */ +extern uschar *sender_ident; /* Sender identity via RFC 1413 */ +extern uschar *sender_rate; /* Sender rate computed by ACL */ +extern uschar *sender_rate_limit; /* Configured rate limit */ +extern uschar *sender_rate_period; /* Configured smoothing period */ +extern uschar *sender_rcvhost; /* Host data for Received: */ +extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */ +extern uschar *sender_verify_failure; /* What went wrong */ +extern address_item *sender_verified_list; /* Saved chain of sender verifies */ +extern address_item *sender_verified_failed; /* The one that caused denial */ +extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */ +extern int sending_port; /* Port of outgoing interface */ +extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */ +extern const uschar *sigalarm_setter; /* For debug, set to callpoint of alarm() */ +extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */ +extern int slow_lookup_log; /* Log DNS lookups taking longer than N millisecs */ +extern int smtp_accept_count; /* Count of connections */ +extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */ +extern int smtp_accept_max; /* Max SMTP connections */ +extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */ +extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */ +extern int smtp_accept_max_per_connection; /* Max msgs per connection */ +extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */ +extern int smtp_accept_queue; /* Queue after so many connections */ +extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */ +extern int smtp_accept_reserve; /* Reserve these SMTP connections */ +extern uschar *smtp_active_hostname; /* Hostname for this message */ +extern uschar *smtp_banner; /* Banner string (to be expanded) */ +extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */ +extern int smtp_ch_index; /* Index in smtp_connection_had */ +extern uschar *smtp_cmd_argument; /* For all SMTP commands */ +extern uschar *smtp_cmd_buffer; /* SMTP command buffer */ +extern struct timeval smtp_connection_start; /* Start time of SMTP connection */ +extern uschar smtp_connection_had[]; /* Recent SMTP commands */ +extern int smtp_connect_backlog; /* Max backlog permitted */ +extern double smtp_delay_mail; /* Current MAIL delay */ +extern double smtp_delay_rcpt; /* Current RCPT delay */ +extern BOOL smtp_enforce_sync; /* Enforce sync rules */ +extern uschar *smtp_etrn_command; /* Command to run */ +extern BOOL smtp_etrn_serialize; /* Only one at once */ +extern FILE *smtp_in; /* Incoming SMTP input file */ +extern int smtp_load_reserve; /* Only from reserved if load > this */ +extern int smtp_mailcmd_count; /* Count of MAIL commands */ +extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */ +extern int smtp_max_unknown_commands; /* As it says */ +extern uschar *smtp_notquit_reason; /* Global for disconnect reason */ +extern FILE *smtp_out; /* Incoming SMTP output file */ +extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */ +extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */ +extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */ +extern uschar *smtp_read_error; /* Message for SMTP input error */ +extern int smtp_receive_timeout; /* Applies to each received line */ +extern uschar *smtp_receive_timeout_s; /* ... expandable version */ +extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */ +extern BOOL smtp_return_error_details; /* TRUE to return full info */ +extern int smtp_rlm_base; /* Base interval for MAIL rate limit */ +extern double smtp_rlm_factor; /* Factor for MAIL rate limit */ +extern int smtp_rlm_limit; /* Max delay */ +extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */ +extern int smtp_rlr_base; /* Base interval for RCPT rate limit */ +extern double smtp_rlr_factor; /* Factor for RCPT rate limit */ +extern int smtp_rlr_limit; /* Max delay */ +extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */ +extern unsigned smtp_peer_options; /* Global flags for passed connections */ +extern unsigned smtp_peer_options_wrap; /* stacked version hidden by TLS */ +#ifdef SUPPORT_I18N +extern uschar *smtputf8_advertise_hosts; /* ingress control */ +#endif + +#ifdef WITH_CONTENT_SCAN +extern uschar *spamd_address; /* address for the spamassassin daemon */ +extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */ +extern uschar *spam_report; /* the spamd report (multiline) */ +extern uschar *spam_action; /* the spamd recommended-action */ +extern uschar *spam_score; /* the spam score (float) */ +extern uschar *spam_score_int; /* spam_score * 10 (int) */ +#endif +#ifdef SUPPORT_SPF +extern uschar *spf_guess; /* spf best-guess record */ +extern uschar *spf_header_comment; /* spf header comment */ +extern uschar *spf_received; /* Received-SPF: header */ +extern uschar *spf_result; /* spf result in string form */ +extern BOOL spf_result_guessed; /* spf result is of best-guess operation */ +extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */ +extern uschar *spf_smtp_comment_template; + /* template to construct the spf comment by libspf2 */ +#endif +extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */ +extern FILE *spool_data_file; /* handle for -D file */ +extern uschar *spool_directory; /* Name of spool directory */ +extern BOOL spool_wireformat; /* can write wireformat -D files */ +#ifdef EXPERIMENTAL_SRS +extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */ +extern uschar *srs_db_address; /* SRS db address */ +extern uschar *srs_db_key; /* SRS db key */ +extern int srs_hashlength; /* SRS hash length */ +extern int srs_hashmin; /* SRS minimum hash length */ +extern int srs_maxage; /* SRS max age */ +extern uschar *srs_orig_sender; /* SRS original sender */ +extern uschar *srs_orig_recipient; /* SRS original recipient */ +extern uschar *srs_recipient; /* SRS recipient */ +extern uschar *srs_secrets; /* SRS secrets list */ +extern uschar *srs_status; /* SRS staus */ +extern BOOL srs_usehash; /* SRS use hash flag */ +extern BOOL srs_usetimestamp; /* SRS use timestamp flag */ +#endif +#ifdef EXPERIMENTAL_SRS_NATIVE +extern uschar *srs_recipient; /* SRS recipient */ +#endif +extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */ +extern int string_datestamp_offset;/* After insertion by string_format */ +extern int string_datestamp_length;/* After insertion by string_format */ +extern int string_datestamp_type; /* After insertion by string_format */ +extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */ +extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */ +extern uschar *submission_domain; /* Domain for submission mode */ +extern uschar *submission_name; /* User name set from ACL */ +extern BOOL syslog_duplication; /* FALSE => no duplicate logging */ +extern int syslog_facility; /* As defined by Syslog.h */ +extern BOOL syslog_pid; /* TRUE if PID on syslogs */ +extern uschar *syslog_processname; /* 'ident' param to openlog() */ +extern BOOL syslog_timestamp; /* TRUE if time on syslogs */ +extern uschar *system_filter; /* Name of system filter file */ + +extern uschar *system_filter_directory_transport; /* Transports for the */ +extern uschar *system_filter_file_transport; /* system filter */ +extern uschar *system_filter_pipe_transport; +extern uschar *system_filter_reply_transport; + +extern gid_t system_filter_gid; /* Gid for running system filter */ +extern BOOL system_filter_gid_set; /* TRUE if gid set */ +extern uid_t system_filter_uid; /* Uid for running system filter */ +extern BOOL system_filter_uid_set; /* TRUE if uid set */ + +extern blob tcp_fastopen_nodata; /* for zero-data TFO connect requests */ +extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */ +extern tfo_state_t tcp_out_fastopen; /* TCP fast open */ +#ifdef USE_TCP_WRAPPERS +extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */ +#endif +extern int test_harness_load_avg; /* For use when testing */ +extern int thismessage_size_limit; /* Limit for this message */ +extern int timeout_frozen_after; /* Max time to keep frozen messages */ +#ifdef MEASURE_TIMING +extern struct timeval timestamp_startup; /* For development measurements */ +#endif + +extern uschar *transport_name; /* Name of transport last started */ +extern int transport_count; /* Count of bytes transported */ +extern int transport_newlines; /* Accurate count of number of newline chars transported */ +extern const uschar **transport_filter_argv; /* For on-the-fly filtering */ +extern int transport_filter_timeout; /* Timeout for same */ + +extern transport_info transports_available[]; /* Vector of available transports */ +extern transport_instance *transports; /* Chain of instantiated transports */ +extern transport_instance transport_defaults; /* Default values */ + +extern int transport_write_timeout;/* Set to time out individual writes */ + +extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */ +extern tree_node *tree_duplicates; /* Tree of duplicate addresses */ +extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */ +extern tree_node *tree_unusable; /* Tree of unusable addresses */ + +extern gid_t *trusted_groups; /* List of trusted groups */ +extern uid_t *trusted_users; /* List of trusted users */ +extern uschar *timezone_string; /* Required timezone setting */ + +extern uschar *unknown_login; /* To use when login id unknown */ +extern uschar *unknown_username; /* Ditto */ +extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */ +extern uschar *uucp_from_pattern; /* For recognizing "From " lines */ +extern uschar *uucp_from_sender; /* For building the sender */ + +extern uschar *warn_message_file; /* Template for warning messages */ +extern uschar *warnmsg_delay; /* String form of delay time */ +extern uschar *warnmsg_recipients; /* Recipients of warning message */ +extern BOOL write_rejectlog; /* Control of reject logging */ + +extern uschar *verify_mode; /* Running a router in verify mode */ +extern uschar *version_copyright; /* Copyright notice */ +extern uschar *version_date; /* Date of compilation */ +extern uschar *version_cnumber; /* Compile number */ +extern uschar *version_string; /* Version string */ + +extern int warning_count; /* Delay warnings sent for this msg */ + +/* End of globals.h */ |