*************************************************/
/* 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
#endif
#ifdef LOOKUP_SQLITE
+extern uschar *sqlite_dbfile; /* Filname for database */
extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
#endif
extern BOOL move_frozen_messages; /* Get them out of the normal directory */
#endif
+#ifdef ALLOW_INSECURE_TAINTED_DATA
+extern BOOL allow_insecure_tainted_data;
+#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. */
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_FAILED, /* verify failed */
OCSP_VFIED /* verified */
} ocsp; /* Stapled OCSP status */
+#ifndef DISABLE_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;
-#ifdef SUPPORT_TLS
+#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 pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
+extern uschar *tls_alpn; /* ALPN names acceptable */
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 */
extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
# endif
extern uschar *tls_privatekey; /* Private key file */
-# ifdef EXPERIMENTAL_REQUIRETLS
-extern uschar tls_requiretls; /* REQUIRETLS active for this message */
-extern uschar *tls_advertise_requiretls; /* hosts for which REQUIRETLS adv */
-extern const pcre *regex_REQUIRETLS; /* for recognising the command */
-# endif
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 */
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 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 EXPERIMENTAL_DMARC
+#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 */
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 */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#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 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 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 */
extern BOOL allow_domain_literals; /* As it says */
extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
#ifdef EXPERIMENTAL_ARC
-struct arc_set *arc_received; /* highest ARC instance evaluation struct */
+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 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 */
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+extern unsigned continue_limit_mail; /* Peer advertised limit */
+extern unsigned continue_limit_rcpt;
+extern unsigned continue_limit_rcptdom;
+#endif
+
extern uschar *csa_status; /* Client SMTP Authorization result */
} 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 */
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 */
+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 *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 EXPERIMENTAL_DMARC
+#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 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 *host_lookup_msg; /* Text for why it failed */
extern int host_number; /* For sharing spools */
extern uschar *host_number_string; /* For expanding */
+extern uschar *hosts_require_helo; /* check for HELO/EHLO before MAIL */
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 int keep_malformed; /* Time to keep malformed messages */
extern uschar *eldap_dn; /* Where LDAP DNs are left */
+#ifdef EXPERIMENTAL_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 *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 BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
extern uid_t *never_users; /* List of uids never to be used */
-#ifdef WITH_CONTENT_SCAN
-#endif
+extern uschar *notifier_socket; /* Name for daemon notifier unix-socket */
extern const int on; /* For setsockopt */
extern const int off;
extern uschar *percent_hack_domains; /* Local domains for which '% operates */
extern uschar *pid_file_path; /* For writing daemon pids */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#ifndef DISABLE_PIPE_CONNECT
extern uschar *pipe_connect_advertise_hosts; /* for banner/EHLO pipelining */
#endif
extern uschar *pipelining_advertise_hosts; /* As it says */
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 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 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 */
#endif
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 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 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 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 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 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) */
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+extern const pcre *regex_LIMITS; /* For recognizing LIMITS */
+#endif
extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
-#ifdef EXPERIMENTAL_PIPE_CONNECT
+#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 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 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_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_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 *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
+#ifdef EXPERIMENTAL_SRS_ALT
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 BOOL srs_usehash; /* SRS use hash flag */
extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
#endif
+#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 uschar *submission_domain; /* Domain for submission mode */
-extern uschar *submission_name; /* User name set from ACL */
+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 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 */
git://git.exim.org / exim.git / blobdiff