* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
/* Almost all the global variables are defined together in this one header, so
them. Also, the tls_ variables are now always visible. */
typedef struct {
- int active; /* fd/socket when in a TLS session */
+ 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 EXPERIMENTAL_DANE
+#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 */
+
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 */
OCSP_FAILED, /* verify failed */
OCSP_VFIED /* verified */
} ocsp; /* Stapled OCSP status */
+#ifdef EXPERIMENTAL_TLS_RESUME
+ unsigned resumption; /* Session resumption */
+ BOOL host_resumable:1;
+ BOOL ticket_received:1;
+#endif
+ BOOL verify_override:1; /* certificate_verified only due to tls_try_verify_hosts */
} 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 *openssl_options; /* OpenSSL compatibility options */
# 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_require_ciphers; /* So some can be avoided */
+# ifdef EXPERIMENTAL_TLS_RESUME
+extern uschar *tls_resumption_hosts; /* TLS session resumption */
+# endif
extern uschar *tls_try_verify_hosts; /* Optional client verification */
extern uschar *tls_verify_certificates;/* Path for certificates to check */
extern uschar *tls_verify_hosts; /* Mandatory client verification */
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);
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 chunking_offered :1;
+ BOOL config_changed :1; /* True if -C used */
+ BOOL continue_more :1; /* Flag more addresses waiting */
+
+ BOOL daemon_listen :1; /* True if listening required */
+ BOOL debug_daemon :1; /* Debug the daemon process only */
+ BOOL deliver_firsttime :1; /* True for first delivery attempt */
+ BOOL deliver_force :1; /* TRUE if delivery was forced */
+ BOOL deliver_freeze :1; /* TRUE if delivery is frozen */
+ BOOL deliver_force_thaw :1; /* TRUE to force thaw in queue run */
+ BOOL deliver_manual_thaw :1; /* TRUE if manually thawed */
+ BOOL deliver_selectstring_regex :1; /* String is regex */
+ BOOL deliver_selectstring_sender_regex :1; /* String is regex */
+ BOOL disable_callout_flush :1; /* Don't flush before callouts */
+ BOOL disable_delay_flush :1; /* Don't flush before "delay" in ACL */
+ BOOL disable_logging :1; /* Disables log writing when TRUE */
+#ifndef DISABLE_DKIM
+ BOOL dkim_disable_verify :1; /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+#endif
+#ifdef EXPERIMENTAL_DMARC
+ BOOL dmarc_has_been_checked :1; /* Global variable to check if test has been called yet */
+ BOOL dmarc_disable_verify :1; /* Set via ACL control statement. When set, DMARC verification is disabled for the current message */
+ BOOL dmarc_enable_forensic :1; /* Set via ACL control statement. When set, DMARC forensic reports are enabled for the current message */
+#endif
+ BOOL dont_deliver :1; /* TRUE for -N option */
+ BOOL dot_ends :1; /* TRUE if "." ends non-SMTP input */
+
+ BOOL enable_dollar_recipients :1; /* Make $recipients available */
+ BOOL expand_string_forcedfail :1; /* TRUE if failure was "expected" */
+
+ BOOL filter_running :1; /* TRUE while running a filter */
+
+ BOOL header_rewritten :1; /* TRUE if header changed by router */
+ BOOL helo_verified :1; /* True if HELO verified */
+ BOOL helo_verify_failed :1; /* True if attempt failed */
+ BOOL host_checking_callout :1; /* TRUE if real callout wanted */
+ BOOL host_find_failed_syntax :1; /* DNS syntax check failure */
+
+ BOOL inetd_wait_mode :1; /* Whether running in inetd wait mode */
+ BOOL is_inetd :1; /* True for inetd calls */
+
+ BOOL local_error_message :1; /* True if handling one of these */
+ BOOL log_testing_mode :1; /* TRUE in various testing modes */
+
+#ifdef WITH_CONTENT_SCAN
+ BOOL no_mbox_unspool :1; /* don't unlink files in /scan directory */
+#endif
+ BOOL no_multiline_responses :1; /* For broken clients */
+
+ BOOL parse_allow_group :1; /* Allow group syntax */
+ BOOL parse_found_group :1; /* In the middle of a group */
+ BOOL pipelining_enable :1; /* As it says */
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+ BOOL proxy_session_failed :1; /* TRUE if required proxy negotiation failed */
+#endif
+
+ BOOL queue_2stage :1; /* Run queue in 2-stage manner */
+ BOOL queue_only_policy :1; /* ACL or local_scan wants queue_only */
+ BOOL queue_run_first_delivery :1; /* If TRUE, first deliveries only */
+ BOOL queue_run_force :1; /* TRUE to force during queue run */
+ BOOL queue_run_local :1; /* Local deliveries only in queue run */
+ BOOL queue_running :1; /* TRUE for queue running process and */
+ BOOL queue_smtp :1; /* Disable all immediate SMTP (-odqs)*/
+
+ BOOL really_exim :1; /* FALSE in utilities */
+ BOOL receive_call_bombout :1; /* Flag for crashing log */
+ BOOL recipients_discarded :1; /* By an ACL */
+ BOOL running_in_test_harness :1; /*TRUE when running_status is patched */
+
+ BOOL search_find_defer :1; /* Set TRUE if lookup deferred */
+ BOOL sender_address_forced :1; /* Set by -f */
+ BOOL sender_host_notsocket :1; /* Set for -bs and -bS */
+ BOOL sender_host_unknown :1; /* TRUE for -bs and -bS except inetd */
+ BOOL sender_local :1; /* TRUE for local senders */
+ BOOL sender_name_forced :1; /* Set by -F */
+ BOOL sender_set_untrusted :1; /* Sender set by untrusted caller */
+ BOOL smtp_authenticated :1; /* Sending client has authenticated */
+#ifdef SUPPORT_PIPE_CONNECT
+ BOOL smtp_in_early_pipe_advertised :1; /* server advertised PIPE_CONNECT */
+ BOOL smtp_in_early_pipe_no_auth :1; /* too many authenticator names */
+ BOOL smtp_in_early_pipe_used :1; /* client did send early data */
+#endif
+ BOOL smtp_in_pipelining_advertised :1; /* server advertised PIPELINING */
+ BOOL smtp_in_pipelining_used :1; /* server noted client using PIPELINING */
+ BOOL spool_file_wireformat :1; /* current -D file has CRLF rather than NL */
+ BOOL submission_mode :1; /* Can be forced from ACL */
+ BOOL suppress_local_fixups :1; /* Can be forced from ACL */
+ BOOL suppress_local_fixups_default :1; /* former is reset to this; override with -G */
+ BOOL synchronous_delivery :1; /* TRUE if -odi is set */
+ BOOL system_filtering :1; /* TRUE when running system filter */
+
+ BOOL 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 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_rcpt; /* ACL run for RCPT */
extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
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 message variables */
extern uschar *acl_verify_message; /* User message for verify failure */
extern string_item *acl_warn_logged; /* Logged lines */
extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
extern uschar *acl_wherenames[]; /* Names for messages */
-extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
-extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
extern address_item *addr_duplicate; /* Duplicate address list */
extern address_item address_defaults; /* Default data for address item */
extern uschar *address_file; /* Name of file when delivering to one */
extern uschar *address_pipe; /* Pipe command when delivering to one */
-extern BOOL address_test_mode; /* True for -bt */
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 admin_user; /* True if caller can do admin */
-extern BOOL allow_auth_unadvertised;/* As it says */
extern BOOL allow_domain_literals; /* As it says */
extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
-extern BOOL allow_unqualified_recipient; /* As it says */
-extern BOOL allow_unqualified_sender; /* Ditto */
+#ifdef EXPERIMENTAL_ARC
+struct arc_set *arc_received; /* highest ARC instance evaluation struct */
+extern int arc_received_instance; /* highest ARC instance number in headers */
+extern int arc_oldest_pass; /* lowest passing instance number in headers */
+extern const uschar *arc_state; /* verification state */
+extern const uschar *arc_state_reason;
+#endif
extern BOOL allow_utf8_domains; /* For experimenting */
extern uschar *authenticated_fail_id; /* ID that failed authentication */
extern uschar *authenticated_id; /* ID that was authenticated */
extern uschar *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 int av_failed; /* TRUE if the AV process failed */
extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
#endif
-extern BOOL background_daemon; /* Set FALSE to keep in foreground */
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 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 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 *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 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 check_log_space; /* 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 check_spool_space; /* Minimum for message acceptance */
+extern int_eximarith_t check_spool_space; /* Minimum for message acceptance */
+extern uschar *chunking_advertise_hosts; /* RFC 3030 CHUNKING */
+extern unsigned chunking_datasize;
+extern unsigned chunking_data_left;
+extern chunking_state_t chunking_state;
extern uschar *client_authenticator; /* Authenticator name used for smtp delivery */
extern uschar *client_authenticated_id; /* "login" name used for SMTP AUTH */
extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
extern int clmacro_count; /* Number of command line macros */
extern uschar *clmacros[]; /* Copy of them, for re-exec */
+extern BOOL commandline_checks_require_admin; /* belt and braces for insecure setups */
extern int connection_max_messages;/* Max down one SMTP connection */
-extern 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 int continue_sequence; /* Sequence num for continued delivery */
extern uschar *continue_transport; /* Transport for continued delivery */
extern uschar *csa_status; /* Client SMTP Authorization result */
typedef struct {
- BOOL delivery; /* When to attempt */
- int fd; /* Open connection */
+ 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 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 */
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 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 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 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 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 */
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_suffix; /* The stripped suffix, if any */
-extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
-extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
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 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 */
-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_fsync; /* Not for normal use */
#endif
extern BOOL disable_ipv6; /* Don't do any IPv6 things */
-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 unsigned dkim_collect_input; /* Runtime count of dkim signtures; tracks whether SMTP input is fed to DKIM validation */
extern uschar *dkim_cur_signer; /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
-extern 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 void *dkim_signatures; /* Actually a (pdkim_signature *) but most files do not need to know */
extern uschar *dkim_signers; /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
extern uschar *dkim_signing_domain; /* Expansion variable, domain used for signing a message. */
extern uschar *dkim_signing_selector; /* Expansion variable, selector used for signing a message. */
+extern uschar *dkim_verify_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
-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_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 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 EXPERIMENTAL_DANE
+#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 uschar *dnslist_value; /* DNS (black) list IP address */
extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
extern int domainlist_count; /* Number defined */
-extern BOOL dont_deliver; /* TRUE for -N option */
-extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
/* This option is now a no-opt, retained for compatibility */
extern BOOL drop_cr; /* For broken local MUAs */
extern uschar *dsn_from; /* From: string for DSNs */
-extern BOOL 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 const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
extern uid_t exim_uid; /* Non-root uid for exim */
extern BOOL exim_uid_set; /* TRUE if exim_uid set */
+extern int expand_level; /* Nesting depth; indent for debug */
extern int expand_forbid; /* RDO flags for forbidding things */
extern int expand_nlength[]; /* Lengths of numbered strings */
extern int expand_nmax; /* Max numerical value */
extern uschar *expand_nstring[]; /* Numbered strings */
-extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
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 BOOL filter_running; /* TRUE while running a filter */
extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
extern int filter_test; /* Filter test type */
extern uschar *filter_test_sfile; /* System filter test file */
extern uschar *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 BOOL header_rewritten; /* TRUE if header changed by router */
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 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 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 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 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 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 *eldap_dn; /* Where LDAP DNs are left */
extern int load_average; /* Most recently read load average */
-extern BOOL local_error_message; /* True if handling one of these */
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 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 uschar *login_sender_address; /* The actual sender address */
extern lookup_info **lookup_list; /* Array of pointers to available lookups */
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") */
extern uid_t *never_users; /* List of uids never to be used */
#ifdef WITH_CONTENT_SCAN
-extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
#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 uschar *override_local_interfaces; /* Value of -oX argument */
extern uschar *override_pid_file_path; /* Value of -oP argument */
-extern BOOL parse_allow_group; /* Allow group syntax */
-extern BOOL parse_found_group; /* In the middle of a group */
extern uschar *percent_hack_domains; /* Local domains for which '% operates */
extern uschar *pid_file_path; /* For writing daemon pids */
+#ifdef SUPPORT_PIPE_CONNECT
+extern uschar *pipe_connect_advertise_hosts; /* for banner/EHLO pipelining */
+#endif
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 */
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 */
#endif
extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
extern const uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
-extern BOOL queue_2stage; /* Run queue in 2-stage manner */
extern uschar *queue_domains; /* Queue these domains */
extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
-extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
-extern BOOL queue_run_force; /* TRUE to force during queue run */
-extern BOOL queue_run_local; /* Local deliveries only in queue run */
-extern BOOL queue_running; /* TRUE for queue running process and */
/* 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 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_only_policy; /* ACL or local_scan wants queue_only */
extern BOOL queue_run_in_order; /* As opposed to random */
extern uschar *queue_run_max; /* Max queue runners */
-extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
extern uschar *queue_smtp_domains; /* Ditto, for these domains */
extern unsigned int random_seed; /* Seed for random numbers */
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 BOOL really_exim; /* FALSE in utilities */
-extern BOOL receive_call_bombout; /* Flag for crashing log */
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 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 struct timeval received_time_taken; /* Interval the message took to be received */
extern uschar *recipient_data; /* lookup data for recipients */
extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
extern uschar *recipient_verify_failure; /* What went wrong */
-extern 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 */
+#ifdef SUPPORT_PIPE_CONNECT
+extern const pcre *regex_EARLY_PIPE; /* For recognizing PIPE_CONNCT */
+#endif
extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
extern uschar *regex_vars[]; /* $regexN variables */
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 int runrc; /* rc from ${run} */
extern uschar *search_error_message; /* Details of lookup problem */
-extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
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 BOOL sender_address_forced; /* Set by -f */
extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
extern uschar *sender_data; /* lookup result for senders */
extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
extern 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 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 BOOL sender_local; /* TRUE for local senders */
-extern BOOL sender_name_forced; /* Set by -F */
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 BOOL sender_set_untrusted; /* Sender set by untrusted caller */
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 uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
extern int sending_port; /* Port of outgoing interface */
extern SIGNAL_BOOL sigalrm_seen; /* Flag for sigalrm_handler */
+extern const uschar *sigalarm_setter; /* For debug, set to callpoint of alarm() */
extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
-extern int slow_lookup_log; /* Log DNS lookups taking loger than N millisecs */
+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_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 BOOL smtp_authenticated; /* Sending client has authenticated */
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 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 */
+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
extern uschar *spam_score; /* the spam score (float) */
extern uschar *spam_score_int; /* spam_score * 10 (int) */
#endif
-#ifdef EXPERIMENTAL_SPF
+#ifdef SUPPORT_SPF
extern uschar *spf_guess; /* spf best-guess record */
extern uschar *spf_header_comment; /* spf header comment */
extern uschar *spf_received; /* Received-SPF: header */
extern uschar *spf_result; /* spf result in string form */
+extern BOOL spf_result_guessed; /* spf result is of best-guess operation */
extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
#endif
extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
+extern FILE *spool_data_file; /* handle for -D file */
extern uschar *spool_directory; /* Name of spool directory */
+extern BOOL spool_wireformat; /* can write wireformat -D files */
#ifdef EXPERIMENTAL_SRS
extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
extern uschar *srs_db_address; /* SRS db address */
extern 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 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_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 BOOL system_filtering; /* TRUE when running system filter */
+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 */
-extern BOOL timestamps_utc; /* Use UTC for all times */
extern uschar *transport_name; /* Name of transport last started */
extern int transport_count; /* Count of bytes transported */
extern int transport_newlines; /* Accurate count of number of newline chars transported */
extern const uschar **transport_filter_argv; /* For on-the-fly filtering */
extern int transport_filter_timeout; /* Timeout for same */
-extern BOOL transport_filter_timed_out; /* True if it did */
extern transport_info transports_available[]; /* Vector of available transports */
extern transport_instance *transports; /* Chain of instantiated transports */
extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
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 */
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