* 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
int active; /* fd/socket when in a TLS session */
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
/* Input-reading functions for messages, so we can use special ones for
incoming TCP/IP. */
-extern int (*lwr_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)(void);
+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 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 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 *authenticated_sender; /* From AUTH on MAIL */
extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
+extern BOOL authentication_local; /* TRUE if non-smtp (implicit authentication) */
extern uschar *auth_advertise_hosts; /* Only advertise to these */
extern auth_info auths_available[]; /* Vector of available auth mechanisms */
extern auth_instance *auths; /* Chain of instantiated auths */
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 *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_main_filename; /* File name actually used */
extern uschar *config_main_directory; /* Directory where the main config file was found */
extern uid_t config_uid; /* Additional owner */
+extern 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 {
+ 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 spoolling */
+ 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 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 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 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 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 *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 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 *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 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 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 BOOL macros_builtin_created; /* Flag for lazy-create */
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 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 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 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 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 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 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_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 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_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 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
projects / exim.git / blobdiff