-/* $Cambridge: exim/src/src/globals.h,v 1.57 2007/07/27 13:56:24 magnus Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2007 */
+/* Copyright (c) University of Cambridge 1995 - 2014 */
/* See the file NOTICE for conditions of use and distribution. */
/* Almost all the global variables are defined together in this one header, so
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
#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
extern uschar *pgsql_servers; /* List of servers and connect info */
#endif
+#ifdef EXPERIMENTAL_REDIS
+extern uschar *redis_servers; /* List of servers and connect info */
+#endif
+
#ifdef LOOKUP_SQLITE
extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
#endif
cluttered in several places (e.g. during logging) if we can always refer to
them. Also, the tls_ variables are now always visible. */
-extern int tls_active; /* fd/socket when in a TLS session */
-extern BOOL tls_certificate_verified; /* Client certificate verified */
-extern uschar *tls_cipher; /* Cipher used */
-extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
-extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
-extern uschar *tls_peerdn; /* DN from peer */
+typedef struct {
+ int active; /* fd/socket when in a TLS session */
+ int bits; /* bits used in TLS session */
+ BOOL certificate_verified; /* Client certificate verified */
+ uschar *cipher; /* Cipher used */
+ 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 */
+ 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 */
+} tls_support;
+extern tls_support tls_in;
+extern tls_support tls_out;
#ifdef SUPPORT_TLS
+extern BOOL gnutls_compat_mode; /* Less security, more compatibility */
+extern BOOL gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */
extern uschar *gnutls_require_mac; /* So some can be avoided */
extern uschar *gnutls_require_kx; /* So some can be avoided */
extern uschar *gnutls_require_proto; /* So some can be avoided */
+extern uschar *openssl_options; /* OpenSSL compatibility options */
extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
extern uschar *tls_certificate; /* Certificate file */
+extern uschar *tls_channelbinding_b64; /* string of base64 channel binding */
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 */
+#ifndef DISABLE_OCSP
+extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
+#endif
extern BOOL tls_offered; /* Server offered TLS */
extern uschar *tls_privatekey; /* Private key file */
extern BOOL tls_remember_esmtp; /* For YAEB */
extern uschar *tls_verify_hosts; /* Mandatory client verification */
#endif
+#ifdef EXPERIMENTAL_DSN
+extern uschar *dsn_envid; /* DSN envid string */
+extern int dsn_ret; /* DSN ret type*/
+extern const pcre *regex_DSN; /* For recognizing DSN settings */
+extern BOOL smtp_use_dsn; /* Global for passed connections */
+extern uschar *dsn_advertise_hosts; /* host for which TLS is advertised */
+#endif
/* Input-reading functions for messages, so we can use special ones for
incoming TCP/IP. */
/* General global variables */
extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
+extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
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 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 */
#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 BOOL allow_unqualified_recipient; /* As it says */
extern BOOL allow_unqualified_sender; /* Ditto */
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_vars[]; /* $authn variables */
extern int auto_thaw; /* Auto-thaw interval */
#ifdef WITH_CONTENT_SCAN
+extern BOOL av_failed; /* TRUE if the AV process failed */
extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
#endif
extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
extern int check_spool_inodes; /* Minimum for message acceptance */
extern int check_spool_space; /* Minimum for message acceptance */
+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 int connection_max_messages;/* Max down one SMTP connection */
extern uschar *continue_transport; /* Transport for continued delivery */
extern uschar *csa_status; /* Client SMTP Authorization result */
+extern BOOL cutthrough_delivery; /* Deliver in foreground */
+extern int cutthrough_fd; /* Connection for ditto */
extern BOOL daemon_listen; /* True if listening required */
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 BOOL debug_daemon; /* Debug the daemon process only */
extern int debug_fd; /* The fd for debug_file */
extern FILE *debug_file; /* Where to write debugging info */
extern BOOL deliver_firsttime; /* True for first delivery attempt */
extern BOOL deliver_force; /* TRUE if delivery was forced */
extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
-extern int deliver_frozen_at; /* Time of freezing */
+extern time_t deliver_frozen_at; /* Time of freezing */
extern uschar *deliver_home; /* Home directory for pipes */
extern uschar *deliver_host; /* (First) host for routed local deliveries */
/* Remote host for filter */
extern BOOL disable_ipv6; /* Don't do any IPv6 things */
extern BOOL disable_logging; /* Disables log writing when TRUE */
-#ifdef EXPERIMENTAL_DOMAINKEYS
-extern uschar *dk_signing_domain; /* Domain used for signing a message. */
-extern uschar *dk_signing_selector; /* Selector used for signing a message. */
-extern int dk_do_verify; /* DK verification switch. Set with ACL control statement. */
+#ifndef DISABLE_DKIM
+extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
+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_signers; /* Colon-separated list of domains for each of which we call the DKIM ACL */
+extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
+extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+#endif
+#ifdef EXPERIMENTAL_DMARC
+extern BOOL dmarc_has_been_checked; /* Global variable to check if test has been called yet */
+extern uschar *dmarc_ar_header; /* Expansion variable, suggested header for dmarc auth results */
+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 */
+extern BOOL dmarc_disable_verify; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */
+extern BOOL dmarc_enable_forensic; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */
#endif
extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
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 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 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_forbid; /* RDO flags for forbidding things */
extern BOOL helo_verified; /* True if HELO verified */
extern BOOL helo_verify_failed; /* True if attempt failed */
extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
-extern uschar *hex_digits; /* Used in several places */
+extern const uschar *hex_digits; /* Used in several places */
extern uschar *hold_domains; /* Hold up deliveries to these */
extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
extern BOOL host_checking_callout; /* TRUE if real callout wanted */
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 BOOL inetd_wait_mode; /* Whether running in inetd wait mode */
+extern int inetd_wait_timeout; /* Timeout for inetd wait mode */
extern BOOL is_inetd; /* True for inetd calls */
extern uschar *iterate_item; /* Item from iterate list */
extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
extern uschar *login_sender_address; /* The actual sender address */
-extern lookup_info lookup_list[]; /* Vector of available lookups */
+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 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 */
/* MIME ACL expandables */
#ifdef WITH_CONTENT_SCAN
extern int mime_anomaly_level;
-extern uschar *mime_anomaly_text;
+extern const uschar *mime_anomaly_text;
extern uschar *mime_boundary;
extern uschar *mime_charset;
extern uschar *mime_content_description;
extern uschar *pid_file_path; /* For writing daemon pids */
extern uschar *pipelining_advertise_hosts; /* As it says */
extern BOOL pipelining_enable; /* 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 BOOL prod_requires_admin; /* TRUE if prodding requires admin */
+
+#ifdef EXPERIMENTAL_PROXY
+extern uschar *proxy_host_address; /* IP of host being proxied */
+extern int proxy_host_port; /* Port of host being proxied */
+extern uschar *proxy_required_hosts; /* Hostlist which (require) use proxy protocol */
+extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */
+extern BOOL proxy_session_failed; /* TRUE if required proxy negotiation failed */
+extern uschar *proxy_target_address; /* IP of proxy server inbound */
+extern int proxy_target_port; /* Port of proxy server inbound */
+#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 pcre *regex_SIZE; /* For recognizing SIZE settings */
extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
+#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 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 BOOL running_in_test_harness; /*TRUE when running_status is patched */
extern ip_address_item *running_interfaces; /* Host's running interfaces */
extern uschar *running_status; /* Flag string for testing */
extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
extern uschar **sender_host_aliases; /* Points to list of alias names */
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 BOOL sender_host_notsocket; /* Set for -bs and -bS */
extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
extern uschar *sender_ident; /* Sender identity via RFC 1413 */
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 volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
+extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */
extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
extern int smtp_accept_count; /* Count of connections */
extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
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 *spam_score_int; /* spam_score * 10 (int) */
#endif
#ifdef EXPERIMENTAL_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 */
#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 BOOL submission_mode; /* Can be forced from ACL */
extern uschar *submission_name; /* User name set from ACL */
extern BOOL suppress_local_fixups; /* Can be forced from ACL */
+extern BOOL suppress_local_fixups_default; /* former is reset to this; override with -G */
extern BOOL synchronous_delivery; /* TRUE if -odi is set */
extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
extern int syslog_facility; /* As defined by Syslog.h */
extern BOOL system_filtering; /* TRUE when running system filter */
extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
+#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 */
extern BOOL timestamps_utc; /* Use UTC for all times */
+
+#ifdef EXPERIMENTAL_TPDA
+extern int tpda_defer_errno; /* error number set when a remote delivery is deferred with a host error */
+extern uschar *tpda_defer_errstr; /* error string set when a remote delivery is deferred with a host error */
+extern uschar *tpda_delivery_ip; /* IP of host, which has accepted delivery */
+extern int tpda_delivery_port; /* port of host, which has accepted delivery */
+extern uschar *tpda_delivery_fqdn; /* FQDN of host, which has accepted delivery */
+extern uschar *tpda_delivery_local_part;/* local part of address being delivered */
+extern uschar *tpda_delivery_domain; /* domain part of address being delivered */
+extern uschar *tpda_delivery_confirmation; /* SMTP confirmation message */
+#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 uschar **transport_filter_argv; /* For on-the-fly filtering */
extern int transport_filter_timeout; /* Timeout for same */
extern BOOL transport_filter_timed_out; /* True if it did */
extern tree_node *tree_unusable; /* Tree of unusable addresses */
extern BOOL trusted_caller; /* Caller is trusted */
+extern BOOL trusted_config; /* Configuration file is trusted */
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 */
git://git.exim.org / exim.git / blobdiff