* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2017 */
/* See the file NOTICE for conditions of use and distribution. */
/* Almost all the global variables are defined together in this one header, so
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 uschar *pgsql_servers; /* List of servers and connect info */
#endif
-#ifdef EXPERIMENTAL_REDIS
+#ifdef LOOKUP_REDIS
extern uschar *redis_servers; /* List of servers and connect info */
#endif
#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_eccurve; /* EC curve */
+# ifndef DISABLE_OCSP
extern uschar *tls_ocsp_file; /* OCSP stapling proof file */
-#endif
-extern BOOL tls_offered; /* Server offered TLS */
+# 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 */
extern uschar *tls_verify_certificates;/* Path for certificates to check */
extern uschar *tls_verify_hosts; /* Mandatory client verification */
#endif
+extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
extern uschar *dsn_envid; /* DSN envid string */
extern int dsn_ret; /* DSN ret type*/
extern const pcre *regex_DSN; /* For recognizing DSN settings */
-extern BOOL smtp_use_dsn; /* Global for passed connections */
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 (*receive_getc)(void);
+extern int (*lwr_receive_getc)(unsigned);
+extern uschar * (*lwr_receive_getbuf)(unsigned *);
+extern int (*lwr_receive_ungetc)(int);
+extern int (*receive_getc)(unsigned);
+extern uschar * (*receive_getbuf)(unsigned *);
+extern void (*receive_get_cache)(void);
extern int (*receive_ungetc)(int);
extern int (*receive_feof)(void);
extern int (*receive_ferror)(void);
/* General global variables */
extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
-extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
+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 */
extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
extern tree_node *acl_var_c; /* ACL connection variables */
-extern tree_node *acl_var_m; /* ACL messsage variables */
+extern tree_node *acl_var_m; /* ACL message variables */
extern uschar *acl_verify_message; /* User message for verify failure */
extern string_item *acl_warn_logged; /* Logged lines */
extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
#endif
+extern int bsmtp_transaction_linecount; /* Start of last transaction */
+extern int body_8bitmime; /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
extern uschar *bounce_message_file; /* Template file */
extern uschar *bounce_message_text; /* One-liner */
extern uschar *bounce_recipient; /* When writing an errmsg */
extern BOOL bounce_return_body; /* Include body in returned message */
+extern int bounce_return_linesize_limit; /* Max line length in return */
extern BOOL bounce_return_message; /* Include message in bounce */
extern int bounce_return_size_limit; /* Max amount to return */
extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
-extern int bsmtp_transaction_linecount; /* Start of last transaction */
+extern uschar *builtin_macros_create_trigger; /* config file line causing lazy-create */
+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 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 *chunking_advertise_hosts; /* RFC 3030 CHUNKING */
+extern unsigned chunking_datasize;
+extern unsigned chunking_data_left;
+extern BOOL chunking_offered;
+extern chunking_state_t chunking_state;
extern uschar *client_authenticator; /* Authenticator name used for smtp delivery */
extern uschar *client_authenticated_id; /* "login" name used for SMTP AUTH */
extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
extern int clmacro_count; /* Number of command line macros */
extern uschar *clmacros[]; /* Copy of them, for re-exec */
+extern BOOL commandline_checks_require_admin; /* belt and braces for insecure setups */
extern int connection_max_messages;/* Max down one SMTP connection */
extern BOOL config_changed; /* True if -C used */
extern FILE *config_file; /* Configuration file */
-extern uschar *config_filename; /* Configuration file name */
-#ifdef CONFIGURE_GROUP
+extern const uschar *config_filename; /* Configuration file name */
extern gid_t config_gid; /* Additional group owner */
-#endif
extern int config_lineno; /* Line number */
extern uschar *config_main_filelist; /* List of possible config files */
extern uschar *config_main_filename; /* File name actually used */
extern uschar *config_main_directory; /* Directory where the main config file was found */
-#ifdef CONFIGURE_OWNER
extern uid_t config_uid; /* Additional owner */
-#endif
+extern uschar *continue_proxy_cipher; /* TLS cipher for proxied continued delivery */
extern uschar *continue_hostname; /* Host for continued delivery */
extern uschar *continue_host_address; /* IP address for ditto */
extern BOOL continue_more; /* Flag more addresses waiting */
extern uschar *csa_status; /* Client SMTP Authorization result */
typedef struct {
- BOOL delivery; /* When to attempt */
+ 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 */
int fd; /* 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 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 int debug_notall[]; /* Debug options excluded from +all */
extern bit_table debug_options[]; /* Table of debug options */
extern int debug_options_count; /* Size of table */
+extern BOOL debug_store; /* Do extra checks on store_reset */
extern int delay_warning[]; /* Times between warnings */
extern uschar *delay_warning_condition; /* Condition string for warnings */
extern BOOL delivery_date_remove; /* Remove delivery-date headers */
extern BOOL deliver_selectstring_regex; /* String is regex */
extern uschar *deliver_selectstring_sender; /* For selecting by sender */
extern BOOL deliver_selectstring_sender_regex; /* String is regex */
-#ifdef WITH_OLD_DEMIME
-extern int demime_errorlevel; /* Severity of MIME error */
-extern int demime_ok; /* Nonzero if message has been demimed */
-extern uschar *demime_reason; /* Reason for broken MIME container */
-#endif
extern BOOL disable_callout_flush; /* Don't flush before callouts */
extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
#ifdef ENABLE_DISABLE_FSYNC
extern BOOL disable_logging; /* Disables log writing when TRUE */
#ifndef DISABLE_DKIM
+extern BOOL dkim_collect_input; /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
+extern BOOL dkim_disable_verify; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+extern int dkim_key_length; /* Expansion variable, length of signing key in bits */
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 int dns_retrans; /* Retransmission time setting */
extern int dns_retry; /* Number of retries */
extern int dns_dnssec_ok; /* When constructing DNS query, set DO flag */
+extern uschar *dns_trust_aa; /* DNSSEC trust AA as AD */
extern int dns_use_edns0; /* Coerce EDNS0 support on/off in resolver. */
extern uschar *dnslist_domain; /* DNS (black) list domain */
extern uschar *dnslist_matched; /* DNS (black) list matched key */
extern uschar *dsn_from; /* From: string for DSNs */
extern BOOL enable_dollar_recipients; /* Make $recipients available */
-extern int envelope_to_remove; /* Remove envelope_to_headers */
+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*/
-#ifdef EXPERIMENTAL_EVENT
+#ifndef DISABLE_EVENT
extern uschar *event_action; /* expansion for delivery events */
extern uschar *event_data; /* event data */
extern int event_defer_errno; /* error number set when a remote delivery is deferred with a host error */
extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
extern uid_t exim_uid; /* Non-root uid for exim */
extern BOOL exim_uid_set; /* TRUE if exim_uid set */
+extern int expand_level; /* Nesting depth; indent for debug */
extern int expand_forbid; /* RDO flags for forbidding things */
extern int expand_nlength[]; /* Lengths of numbered strings */
extern int expand_nmax; /* Max numerical value */
extern uschar *filter_thisaddress; /* For address looping */
extern int finduser_retries; /* Retry count for getpwnam() */
extern uid_t fixed_never_users[]; /* Can't be overridden */
-#ifdef WITH_OLD_DEMIME
-extern uschar *found_extension; /* demime acl condition: file extension found */
-#endif
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 *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 uschar *initial_cwd; /* The directory we where in at startup */
extern BOOL is_inetd; /* True for inetd calls */
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 tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
extern int localpartlist_count; /* Number defined */
extern uschar *log_buffer; /* For constructing log entries */
-extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
+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_testing_mode; /* TRUE in various testing modes */
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; /* Array of pointers to available lookups */
extern int lookup_list_count; /* Number of entries in the list */
extern uschar *lookup_value; /* Value looked up from file */
extern macro_item *macros; /* 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") */
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 EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N
extern BOOL message_smtputf8; /* Internationalized mail handling */
+extern int message_utf8_downconvert; /* convert from utf8 */
const extern pcre *regex_UTF8; /* For recognizing SMTPUTF8 settings */
#endif
extern uschar message_subdir[]; /* Subdirectory for messages */
#endif
extern BOOL no_multiline_responses; /* For broken clients */
+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 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 */
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+extern uschar *hosts_proxy; /* Hostlist which (require) use proxy protocol */
+extern uschar *proxy_external_address; /* IP of remote interface of proxy */
+extern int proxy_external_port; /* Port on remote interface of proxy */
+extern uschar *proxy_local_address; /* IP of local interface of proxy */
+extern int proxy_local_port; /* Port on local interface of proxy */
extern BOOL proxy_session; /* TRUE if receiving mail from valid proxy */
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 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 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_only_policy; /* ACL or local_scan wants queue_only */
extern BOOL queue_run_in_order; /* As opposed to random */
-extern int queue_run_max; /* Max queue runners */
-extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
+extern uschar *queue_run_max; /* Max queue runners */
+extern BOOL queue_smtp; /* Disable all immediate SMTP (-odqs)*/
extern uschar *queue_smtp_domains; /* Ditto, for these domains */
extern unsigned int random_seed; /* Seed for random numbers */
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 int received_time; /* Time the message was received */
+extern struct timeval received_time; /* Time the message was received */
extern uschar *recipient_data; /* lookup data for recipients */
extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
extern uschar *recipient_verify_failure; /* What went wrong */
extern BOOL recipients_discarded; /* By an ACL */
extern int recipients_list_max; /* Maximum number fitting in list */
extern int recipients_max; /* Max permitted */
-extern int recipients_max_reject; /* If TRUE, reject whole message */
+extern BOOL recipients_max_reject; /* If TRUE, reject whole message */
extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
extern const pcre *regex_check_dns_names; /* For DNS name checking */
extern const pcre *regex_From; /* For recognizing "From_" lines */
+extern const pcre *regex_CHUNKING; /* For recognizing CHUNKING (RFC 3030) */
extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
-extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
+extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
+extern uschar *regex_vars[]; /* $regexN variables */
#ifdef WHITELIST_D_MACROS
extern const pcre *regex_whitelisted_macro; /* For -D macro values */
#endif
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 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
extern int sending_port; /* Port of outgoing interface */
extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */
extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
+extern int slow_lookup_log; /* Log DNS lookups taking longer than N millisecs */
extern int smtp_accept_count; /* Count of connections */
extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
extern int smtp_accept_max; /* Max SMTP connections */
extern int smtp_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 time_t smtp_connection_start; /* Start time of SMTP connection */
+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_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 BOOL smtp_use_pipelining; /* Global for passed connections */
-extern BOOL smtp_use_size; /* Global for passed connections */
-#ifdef EXPERIMENTAL_INTERNATIONAL
+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
#endif
extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
extern uschar *spool_directory; /* Name of spool directory */
+extern BOOL spool_file_wireformat; /* current -D file has CRLF rather than NL */
+extern BOOL spool_wireformat; /* can write wireformat -D files */
#ifdef EXPERIMENTAL_SRS
extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
extern uschar *srs_db_address; /* SRS db address */
extern 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 syslog_pid; /* TRUE if PID on syslogs */
extern uschar *syslog_processname; /* 'ident' param to openlog() */
extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
extern uschar *system_filter; /* Name of system filter file */
extern BOOL system_filter_uid_set; /* TRUE if uid set */
extern BOOL system_filtering; /* TRUE when running system filter */
+extern BOOL tcp_fastopen_ok; /* appears to be supported by kernel */
+extern blob tcp_fastopen_nodata; /* for zero-data TFO connect requests */
+extern BOOL tcp_in_fastopen; /* conn usefully used fastopen */
+extern BOOL tcp_in_fastopen_logged; /* one-time logging */
extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
+extern int tcp_out_fastopen; /* 0: no 1: conn used 2: useful */
+extern BOOL tcp_out_fastopen_logged; /* one-time logging */
#ifdef USE_TCP_WRAPPERS
extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
#endif
git://git.exim.org / exim.git / blobdiff