/************************************************* * Exim - an Internet mail transport agent * *************************************************/ /* Copyright (c) The Exim Maintainers 2020 - 2024 */ /* Copyright (c) University of Cambridge 1995 - 2018 */ /* See the file NOTICE for conditions of use and distribution. */ /* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef GLOBALS_H #define GLOBALS_H /* 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 */ #ifndef DISABLE_TLS_RESUME hctx resume_hctx; /* session lookup key accumulation */ const uschar * resume_index; /* session lookup key */ 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 */ BOOL channelbind_exporter:1; /* channelbinding is EXPORTER not UNIQUE */ } 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 *hosts_require_alpn; /* Mandatory ALPN successful nogitiation */ extern uschar *openssl_options; /* OpenSSL compatibility options */ extern const pcre2_code *regex_STARTTLS; /* For recognizing STARTTLS settings */ extern uschar *tls_alpn; /* ALPN names acceptable */ 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 */ # ifndef DISABLE_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 */ extern int tls_watch_fd; /* for inotify of creds files */ extern time_t tls_watch_trigger_time; /* non-0: triggered */ #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 pcre2_code *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 BOOL (*lwr_receive_hasc)(void); extern int (*lwr_receive_ungetc)(int); extern int (*receive_getc)(unsigned); extern uschar * (*receive_getbuf)(unsigned *); extern BOOL (*receive_hasc)(void); extern void (*receive_get_cache)(unsigned); extern int (*receive_ungetc)(int); extern int (*receive_feof)(void); extern int (*receive_ferror)(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 daemon_scion :1; /* Ancestor proc is daemon, and not re-exec'd */ 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 notifier_socket_en :1; /* Permit create of notifier socket */ 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_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 PIPECONNECT */ 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 smtp_in_quit :1; /* server noted QUIT command */ 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*/ extern const pcre2_code *regex_PRDR; /* For recognizing PRDR settings */ #endif extern uschar *acl_smtp_atrn; /* ACL run for ATRN */ #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 */ #ifndef DISABLE_WELLKNOWN extern uschar *acl_smtp_wellknown; /* ACL run for WELLKNOWN */ #endif 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 int acl_where; /* Current running ACL */ 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 const uschar *address_file; /* Name of file when delivering to one */ extern const 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 */ extern BOOL allow_utf8_domains; /* For experimenting */ extern const uschar *atrn_domains; /* Domains requested for transfer */ extern const uschar *atrn_host; /* host spec for client */ 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 *authenticator_name; /* for debug and error messages */ extern uschar *auth_advertise_hosts; /* Only advertise to these */ extern auth_info * auths_available; /* List 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 const 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 const 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) */ #ifndef DISABLE_CLIENT_CMD_LOG extern gstring *client_cmd_log; /* debug log of client cmds & responses */ #endif 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 const uschar *connection_id; /* connection cookie for log */ 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 unsigned config_lineno; /* Line number */ extern const 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 unsigned continue_flags; /* TLS-related info for connection */ #ifndef DISABLE_ESMTP_LIMITS extern unsigned continue_limit_mail; /* Peer advertised limit */ extern unsigned continue_limit_rcpt; extern unsigned continue_limit_rcptdom; #endif extern int continue_fd; /* Connection for continuation */ 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 const uschar *continue_hostname; /* Host for continued delivery */ extern const uschar *continue_host_address; /* IP address for ditto */ extern uschar continue_next_id[]; /* Next message_id from hintsdb */ extern int continue_sequence; /* Sequence num for continued delivery */ extern const uschar *continue_transport; /* Transport for continued delivery */ #ifndef COMPILE_UTILITY extern open_db *continue_retry_db; /* Hintsdb for retries */ extern open_db *continue_wait_db; /* Hintsdb for wait-transport */ #endif 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 unsigned debug_pretrigger_bsize; extern uschar *debug_pretrigger_buf; /* circular buffer for precapture */ extern BOOL debug_store; /* Do extra checks on store_reset */ extern uschar debuglog_name[LOG_NAME_SIZE]; /* ACL-init debug */ 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 const uschar *deliver_localpart;/* The local part for delivery */ extern uschar *deliver_localpart_data; /* From local part lookup (de-tainted) */ extern const uschar *deliver_localpart_orig; /* The original local part for delivery */ extern const uschar *deliver_localpart_parent; /* The parent local part for delivery */ extern const uschar *deliver_localpart_prefix; /* The stripped prefix, if any */ extern const uschar *deliver_localpart_prefix_v; /* The stripped-prefix variable portion, if any */ extern const uschar *deliver_localpart_suffix; /* The stripped suffix, if any */ extern const 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 */ 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 const uschar * dns_rc_names[]; /* Mostly for debug output */ 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 const uschar *driver_srcfile; /* For debug & errors */ extern int driver_srcline; /* For debug & errors */ extern unsigned int dtrigger_selector; /* when to start debug */ 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 const 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 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 const 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 const uschar *filter_test_sfile;/* System filter test file */ extern const 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 uschar *hosts_connection_nolog; /* Limits the logging option */ extern uschar *hosts_require_helo; /* check for HELO/EHLO before MAIL */ extern uschar *hosts_treat_as_local; /* For routing */ #ifdef EXPERIMENTAL_XCLIENT extern uschar *hosts_xclient; /* Allow XCLIENT command for specified hosts */ #endif extern tree_node *hostlist_anchor; /* Tree of defined host lists */ extern int hostlist_count; /* Number defined */ 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 const uschar *letter_digit_hyphen_dot; /* Legitimate DNS host name chars */ #ifndef DISABLE_ESMTP_LIMITS extern uschar *limits_advertise_hosts; /* for banner/EHLO pipelining */ #endif 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 tree_node *lookups_tree; /* Tree of available lookups */ extern unsigned 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 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 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 */ extern const pcre2_code *regex_UTF8; /* For recognizing SMTPUTF8 settings */ #endif extern uschar message_subdir[]; /* Subdirectory for messages */ extern const 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 const uschar *override_pid_file_path; /* Value of -oP argument */ extern BOOL panic_coredump; /* SEGV rather than exit, on LOG_PANIC_DIE */ extern pcre2_general_context * pcre_gen_ctx; /* pcre memory management */ extern pcre2_compile_context * pcre_gen_cmp_ctx; extern pcre2_match_context * pcre_gen_mtc_ctx; extern pcre2_general_context * pcre_mlc_ctx; extern pcre2_compile_context * pcre_mlc_cmp_ctx; extern uschar *percent_hack_domains; /* Local domains for which '% operates */ extern const 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) || defined(EXPERIMENTAL_XCLIENT) 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 int proxy_protocol_timeout; /* Timeout for proxy negotiation */ extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy or sending via one */ #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 qrunner *qrunners; /* tracking data for queues */ 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 */ #ifndef DISABLE_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 const uschar *raw_sender; /* Before rewriting */ extern const 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 const 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 started to be received */ extern struct timeval received_time_complete; /* Time the message completed reception */ 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 uschar *recipients_max; /* Max permitted */ extern int recipients_max_expanded; extern BOOL recipients_max_reject; /* If TRUE, reject whole message */ extern const pcre2_code *regex_AUTH; /* For recognizing AUTH settings */ extern const pcre2_code *regex_check_dns_names; /* For DNS name checking */ extern const pcre2_code *regex_From; /* For recognizing "From_" lines */ extern const pcre2_code *regex_CHUNKING; /* For recognizing CHUNKING (RFC 3030) */ extern const pcre2_code *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */ #ifndef DISABLE_ESMTP_LIMITS extern const pcre2_code *regex_LIMITS; /* For recognizing LIMITS */ #endif extern const pcre2_code *regex_PIPELINING; /* For recognizing PIPELINING */ extern const pcre2_code *regex_SIZE; /* For recognizing SIZE settings */ #ifndef DISABLE_PIPE_CONNECT extern const pcre2_code *regex_EARLY_PIPE; /* For recognizing PIPE_CONNCT */ #endif extern int regex_cachesize; /* number of entries */ extern const pcre2_code *regex_ismsgid; /* Compiled r.e. for message ID */ extern const pcre2_code *regex_smtp_code; /* For recognizing SMTP codes */ #ifdef WHITELIST_D_MACROS extern const pcre2_code *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) */ extern const uschar *regex_vars[]; #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 const 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; /* List of available router drivers */ extern router_instance *routers; /* Chain of instantiated routers */ extern router_instance router_defaults;/* Default values */ extern const 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 const 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 const 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 uschar *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 int smtp_backlog_monitor; /* listen backlog level to log */ 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_listen_backlog; /* Current listener socket backlog, if monitored */ extern int smtp_load_reserve; /* Only from reserved if load > this */ extern int smtp_mailcmd_count; /* Count of MAIL commands */ extern int smtp_mailcmd_max; /* Limit for MAIL commands */ extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */ extern int smtp_max_unknown_commands; /* As it says */ extern uschar *smtp_names[]; /* decode for command codes */ 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 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 SUPPORT_SRS 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 const uschar *submission_domain;/* Domain for submission mode */ extern const 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 const 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 const 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; /* Listof 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 const uschar *warnmsg_delay; /* String form of delay time */ extern const 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 */ #ifndef DISABLE_WELLKNOWN extern uschar *wellknown_advertise_hosts;/* Allow WELLKNOWN command for specified hosts */ extern uschar *wellknown_response; /* SMTP response for WELLKNOWN verb */ #endif #endif /* whole file */ /* End of globals.h */