src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = nelem(optionlist_auths);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible.  Note that these are
 102 only used for smtp connections, not for service-daemon access. */
 103
 104 tls_support tls_in = {
 105  .active =              {.sock = -1}
 106  /* all other elements zero */
 107 };
 108 tls_support tls_out = {
 109  .active =              {.sock = -1},
 110  /* all other elements zero */
 111 };
 112
 113 uschar *dsn_envid              = NULL;
 114 int     dsn_ret                = 0;
 115 const pcre  *regex_DSN         = NULL;
 116 uschar *dsn_advertise_hosts    = NULL;
 117
 118 #ifndef DISABLE_TLS
 119 BOOL    gnutls_compat_mode     = FALSE;
 120 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 121 uschar *openssl_options        = NULL;
 122 const pcre *regex_STARTTLS     = NULL;
 123 uschar *tls_advertise_hosts    = US"*";
 124 uschar *tls_certificate        = NULL;
 125 uschar *tls_crl                = NULL;
 126 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 127 that's the interop problem which has been observed: GnuTLS suggesting a higher
 128 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 129 int     tls_dh_max_bits        = 2236;
 130 uschar *tls_dhparam            = NULL;
 131 uschar *tls_eccurve            = US"auto";
 132 # ifndef DISABLE_OCSP
 133 uschar *tls_ocsp_file          = NULL;
 134 # endif
 135 uschar *tls_privatekey         = NULL;
 136 BOOL    tls_remember_esmtp     = FALSE;
 137 uschar *tls_require_ciphers    = NULL;
 138 # ifdef EXPERIMENTAL_TLS_RESUME
 139 uschar *tls_resumption_hosts   = NULL;
 140 # endif
 141 uschar *tls_try_verify_hosts   = NULL;
 142 uschar *tls_verify_certificates= US"system";
 143 uschar *tls_verify_hosts       = NULL;
 144 #else   /*DISABLE_TLS*/
 145 uschar *tls_advertise_hosts    = NULL;
 146 #endif
 147
 148 #ifndef DISABLE_PRDR
 149 /* Per Recipient Data Response variables */
 150 BOOL    prdr_enable            = FALSE;
 151 BOOL    prdr_requested         = FALSE;
 152 const pcre *regex_PRDR         = NULL;
 153 #endif
 154
 155 #ifdef SUPPORT_I18N
 156 const pcre *regex_UTF8         = NULL;
 157 #endif
 158
 159 /* Input-reading functions for messages, so we can use special ones for
 160 incoming TCP/IP. The defaults use stdin. We never need these for any
 161 stand-alone tests. */
 162
 163 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 164 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 165 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 166 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 167 int (*receive_getc)(unsigned)  = stdin_getc;
 168 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 169 void (*receive_get_cache)(void)= NULL;
 170 int (*receive_ungetc)(int)     = stdin_ungetc;
 171 int (*receive_feof)(void)      = stdin_feof;
 172 int (*receive_ferror)(void)    = stdin_ferror;
 173 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 174 #endif
 175
 176
 177 /* List of per-address expansion variables for clearing and saving/restoring
 178 when verifying one address while routing/verifying another. We have to have
 179 the size explicit, because it is referenced from more than one module. */
 180
 181 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 182   CUSS &deliver_address_data,
 183   CUSS &deliver_domain,
 184   CUSS &deliver_domain_data,
 185   CUSS &deliver_domain_orig,
 186   CUSS &deliver_domain_parent,
 187   CUSS &deliver_localpart,
 188   CUSS &deliver_localpart_data,
 189   CUSS &deliver_localpart_orig,
 190   CUSS &deliver_localpart_parent,
 191   CUSS &deliver_localpart_prefix,
 192   CUSS &deliver_localpart_suffix,
 193   CUSS (uschar **)(&deliver_recipients),
 194   CUSS &deliver_host,
 195   CUSS &deliver_home,
 196   CUSS &address_file,
 197   CUSS &address_pipe,
 198   CUSS &self_hostname,
 199   NULL };
 200
 201 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 202
 203 /******************************************************************************/
 204 /* General global variables.  Boolean flags are done as a group
 205 so that only one bit each is needed, packed, for all those we never
 206 need to take a pointer - and only a char for the rest.
 207 This means a struct, unfortunately since it clutters the sourcecode. */
 208
 209 struct global_flags f =
 210 {
 211         .acl_temp_details       = FALSE,
 212         .active_local_from_check = FALSE,
 213         .active_local_sender_retain = FALSE,
 214         .address_test_mode      = FALSE,
 215         .admin_user             = FALSE,
 216         .allow_auth_unadvertised= FALSE,
 217         .allow_unqualified_recipient = TRUE,    /* For local messages */
 218         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 219         .authentication_local   = FALSE,
 220
 221         .background_daemon      = TRUE,
 222
 223         .chunking_offered       = FALSE,
 224         .config_changed         = FALSE,
 225         .continue_more          = FALSE,
 226
 227         .daemon_listen          = FALSE,
 228         .debug_daemon           = FALSE,
 229         .deliver_firsttime      = FALSE,
 230         .deliver_force          = FALSE,
 231         .deliver_freeze         = FALSE,
 232         .deliver_force_thaw     = FALSE,
 233         .deliver_manual_thaw    = FALSE,
 234         .deliver_selectstring_regex = FALSE,
 235         .deliver_selectstring_sender_regex = FALSE,
 236         .disable_callout_flush  = FALSE,
 237         .disable_delay_flush    = FALSE,
 238         .disable_logging        = FALSE,
 239 #ifndef DISABLE_DKIM
 240         .dkim_disable_verify      = FALSE,
 241 #endif
 242 #ifdef EXPERIMENTAL_DMARC
 243         .dmarc_has_been_checked  = FALSE,
 244         .dmarc_disable_verify    = FALSE,
 245         .dmarc_enable_forensic   = FALSE,
 246 #endif
 247         .dont_deliver           = FALSE,
 248         .dot_ends               = TRUE,
 249
 250         .enable_dollar_recipients = FALSE,
 251         .expand_string_forcedfail = FALSE,
 252
 253         .filter_running         = FALSE,
 254
 255         .header_rewritten       = FALSE,
 256         .helo_verified          = FALSE,
 257         .helo_verify_failed     = FALSE,
 258         .host_checking_callout  = FALSE,
 259         .host_find_failed_syntax= FALSE,
 260
 261         .inetd_wait_mode        = FALSE,
 262         .is_inetd               = FALSE,
 263
 264         .local_error_message    = FALSE,
 265         .log_testing_mode       = FALSE,
 266
 267 #ifdef WITH_CONTENT_SCAN
 268         .no_mbox_unspool        = FALSE,
 269 #endif
 270         .no_multiline_responses = FALSE,
 271
 272         .parse_allow_group      = FALSE,
 273         .parse_found_group      = FALSE,
 274         .pipelining_enable      = TRUE,
 275 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 276         .proxy_session_failed   = FALSE,
 277 #endif
 278
 279         .queue_2stage           = FALSE,
 280         .queue_only_policy      = FALSE,
 281         .queue_run_first_delivery = FALSE,
 282         .queue_run_force        = FALSE,
 283         .queue_run_local        = FALSE,
 284         .queue_running          = FALSE,
 285         .queue_smtp             = FALSE,
 286
 287         .really_exim            = TRUE,
 288         .receive_call_bombout   = FALSE,
 289         .recipients_discarded   = FALSE,
 290         .running_in_test_harness = FALSE,
 291
 292         .search_find_defer      = FALSE,
 293         .sender_address_forced  = FALSE,
 294         .sender_host_notsocket  = FALSE,
 295         .sender_host_unknown    = FALSE,
 296         .sender_local           = FALSE,
 297         .sender_name_forced     = FALSE,
 298         .sender_set_untrusted   = FALSE,
 299         .smtp_authenticated     = FALSE,
 300 #ifdef SUPPORT_PIPE_CONNECT
 301         .smtp_in_early_pipe_advertised = FALSE,
 302         .smtp_in_early_pipe_no_auth = FALSE,
 303         .smtp_in_early_pipe_used = FALSE,
 304 #endif
 305         .smtp_in_pipelining_advertised = FALSE,
 306         .smtp_in_pipelining_used = FALSE,
 307         .spool_file_wireformat  = FALSE,
 308         .submission_mode        = FALSE,
 309         .suppress_local_fixups  = FALSE,
 310         .suppress_local_fixups_default = FALSE,
 311         .synchronous_delivery   = FALSE,
 312         .system_filtering       = FALSE,
 313
 314         .tcp_fastopen_ok        = FALSE,
 315         .tcp_in_fastopen        = FALSE,
 316         .tcp_in_fastopen_data   = FALSE,
 317         .tcp_in_fastopen_logged = FALSE,
 318         .tcp_out_fastopen_logged= FALSE,
 319         .timestamps_utc         = FALSE,
 320         .transport_filter_timed_out = FALSE,
 321         .trusted_caller         = FALSE,
 322         .trusted_config         = TRUE,
 323 };
 324
 325 /******************************************************************************/
 326 /* These are the flags which are either variables or mainsection options,
 327 so an address is needed for access, or are exported to local_scan. */
 328
 329 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 330 BOOL    allow_domain_literals  = FALSE;
 331 BOOL    allow_mx_to_ip         = FALSE;
 332 BOOL    allow_utf8_domains     = FALSE;
 333 BOOL    authentication_failed  = FALSE;
 334
 335 BOOL    bounce_return_body     = TRUE;
 336 BOOL    bounce_return_message  = TRUE;
 337 BOOL    check_rfc2047_length   = TRUE;
 338 BOOL    commandline_checks_require_admin = FALSE;
 339
 340 #ifdef EXPERIMENTAL_DCC
 341 BOOL    dcc_direct_add_header  = FALSE;
 342 #endif
 343 BOOL    debug_store            = FALSE;
 344 BOOL    delivery_date_remove   = TRUE;
 345 BOOL    deliver_drop_privilege = FALSE;
 346 #ifdef ENABLE_DISABLE_FSYNC
 347 BOOL    disable_fsync          = FALSE;
 348 #endif
 349 BOOL    disable_ipv6           = FALSE;
 350 BOOL    dns_csa_use_reverse    = TRUE;
 351 BOOL    drop_cr                = FALSE;         /* No longer used */
 352
 353 BOOL    envelope_to_remove     = TRUE;
 354 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 355 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 356 BOOL    extract_addresses_remove_arguments = TRUE;
 357
 358 BOOL    host_checking          = FALSE;
 359 BOOL    host_lookup_deferred   = FALSE;
 360 BOOL    host_lookup_failed     = FALSE;
 361 BOOL    ignore_fromline_local  = FALSE;
 362
 363 BOOL    local_from_check       = TRUE;
 364 BOOL    local_sender_retain    = FALSE;
 365 BOOL    log_timezone           = FALSE;
 366 BOOL    message_body_newlines  = FALSE;
 367 BOOL    message_logs           = TRUE;
 368 #ifdef SUPPORT_I18N
 369 BOOL    message_smtputf8       = FALSE;
 370 #endif
 371 BOOL    mua_wrapper            = FALSE;
 372
 373 BOOL    preserve_message_logs  = FALSE;
 374 BOOL    print_topbitchars      = FALSE;
 375 BOOL    prod_requires_admin    = TRUE;
 376 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 377 BOOL    proxy_session          = FALSE;
 378 #endif
 379
 380 BOOL    queue_list_requires_admin = TRUE;
 381 BOOL    queue_only             = FALSE;
 382 BOOL    queue_only_load_latch  = TRUE;
 383 BOOL    queue_only_override    = TRUE;
 384 BOOL    queue_run_in_order     = FALSE;
 385 BOOL    recipients_max_reject  = FALSE;
 386 BOOL    return_path_remove     = TRUE;
 387
 388 BOOL    smtp_batched_input     = FALSE;
 389 BOOL    sender_helo_dnssec     = FALSE;
 390 BOOL    sender_host_dnssec     = FALSE;
 391 BOOL    smtp_accept_keepalive  = TRUE;
 392 BOOL    smtp_check_spool_space = TRUE;
 393 BOOL    smtp_enforce_sync      = TRUE;
 394 BOOL    smtp_etrn_serialize    = TRUE;
 395 BOOL    smtp_input             = FALSE;
 396 BOOL    smtp_return_error_details = FALSE;
 397 #ifdef SUPPORT_SPF
 398 BOOL    spf_result_guessed     = FALSE;
 399 #endif
 400 BOOL    split_spool_directory  = FALSE;
 401 BOOL    spool_wireformat       = FALSE;
 402 #ifdef EXPERIMENTAL_SRS
 403 BOOL    srs_usehash            = TRUE;
 404 BOOL    srs_usetimestamp       = TRUE;
 405 #endif
 406 BOOL    strict_acl_vars        = FALSE;
 407 BOOL    strip_excess_angle_brackets = FALSE;
 408 BOOL    strip_trailing_dot     = FALSE;
 409 BOOL    syslog_duplication     = TRUE;
 410 BOOL    syslog_pid             = TRUE;
 411 BOOL    syslog_timestamp       = TRUE;
 412 BOOL    system_filter_gid_set  = FALSE;
 413 BOOL    system_filter_uid_set  = FALSE;
 414
 415 BOOL    tcp_nodelay            = TRUE;
 416 BOOL    write_rejectlog        = TRUE;
 417
 418 /******************************************************************************/
 419
 420 header_line *acl_added_headers = NULL;
 421 tree_node *acl_anchor          = NULL;
 422 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 423                                   NULL, NULL, NULL, NULL};
 424 int     acl_narg               = 0;
 425
 426 int     acl_level              = 0;
 427
 428 uschar *acl_not_smtp           = NULL;
 429 #ifdef WITH_CONTENT_SCAN
 430 uschar *acl_not_smtp_mime      = NULL;
 431 #endif
 432 uschar *acl_not_smtp_start     = NULL;
 433 uschar *acl_removed_headers    = NULL;
 434 uschar *acl_smtp_auth          = NULL;
 435 uschar *acl_smtp_connect       = NULL;
 436 uschar *acl_smtp_data          = NULL;
 437 #ifndef DISABLE_PRDR
 438 uschar *acl_smtp_data_prdr     = US"accept";
 439 #endif
 440 #ifndef DISABLE_DKIM
 441 uschar *acl_smtp_dkim          = NULL;
 442 #endif
 443 uschar *acl_smtp_etrn          = NULL;
 444 uschar *acl_smtp_expn          = NULL;
 445 uschar *acl_smtp_helo          = NULL;
 446 uschar *acl_smtp_mail          = NULL;
 447 uschar *acl_smtp_mailauth      = NULL;
 448 #ifdef WITH_CONTENT_SCAN
 449 uschar *acl_smtp_mime          = NULL;
 450 #endif
 451 uschar *acl_smtp_notquit       = NULL;
 452 uschar *acl_smtp_predata       = NULL;
 453 uschar *acl_smtp_quit          = NULL;
 454 uschar *acl_smtp_rcpt          = NULL;
 455 uschar *acl_smtp_starttls      = NULL;
 456 uschar *acl_smtp_vrfy          = NULL;
 457
 458 tree_node *acl_var_c           = NULL;
 459 tree_node *acl_var_m           = NULL;
 460 uschar *acl_verify_message     = NULL;
 461 string_item *acl_warn_logged   = NULL;
 462
 463 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 464 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 465
 466 uschar *acl_wherenames[]       = { US"RCPT",
 467                                    US"MAIL",
 468                                    US"PREDATA",
 469                                    US"MIME",
 470                                    US"DKIM",
 471                                    US"DATA",
 472 #ifndef DISABLE_PRDR
 473                                    US"PRDR",
 474 #endif
 475                                    US"non-SMTP",
 476                                    US"AUTH",
 477                                    US"connection",
 478                                    US"ETRN",
 479                                    US"EXPN",
 480                                    US"EHLO or HELO",
 481                                    US"MAILAUTH",
 482                                    US"non-SMTP-start",
 483                                    US"NOTQUIT",
 484                                    US"QUIT",
 485                                    US"STARTTLS",
 486                                    US"VRFY",
 487                                    US"delivery",
 488                                    US"unknown"
 489                                  };
 490
 491 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 492                                    US"550",     /* MAIL */
 493                                    US"550",     /* PREDATA */
 494                                    US"550",     /* MIME */
 495                                    US"550",     /* DKIM */
 496                                    US"550",     /* DATA */
 497 #ifndef DISABLE_PRDR
 498                                    US"550",    /* RCPT PRDR */
 499 #endif
 500                                    US"0",       /* not SMTP; not relevant */
 501                                    US"503",     /* AUTH */
 502                                    US"550",     /* connect */
 503                                    US"458",     /* ETRN */
 504                                    US"550",     /* EXPN */
 505                                    US"550",     /* HELO/EHLO */
 506                                    US"0",       /* MAILAUTH; not relevant */
 507                                    US"0",       /* not SMTP; not relevant */
 508                                    US"0",       /* NOTQUIT; not relevant */
 509                                    US"0",       /* QUIT; not relevant */
 510                                    US"550",     /* STARTTLS */
 511                                    US"252",     /* VRFY */
 512                                    US"0",       /* delivery; not relevant */
 513                                    US"0"        /* unknown; not relevant */
 514                                  };
 515
 516 uschar *add_environment        = NULL;
 517 address_item  *addr_duplicate  = NULL;
 518
 519 address_item address_defaults = {
 520   .next =               NULL,
 521   .parent =             NULL,
 522   .first =              NULL,
 523   .dupof =              NULL,
 524   .start_router =       NULL,
 525   .router =             NULL,
 526   .transport =          NULL,
 527   .host_list =          NULL,
 528   .host_used =          NULL,
 529   .fallback_hosts =     NULL,
 530   .reply =              NULL,
 531   .retries =            NULL,
 532   .address =            NULL,
 533   .unique =             NULL,
 534   .cc_local_part =      NULL,
 535   .lc_local_part =      NULL,
 536   .local_part =         NULL,
 537   .prefix =             NULL,
 538   .suffix =             NULL,
 539   .domain =             NULL,
 540   .address_retry_key =  NULL,
 541   .domain_retry_key =   NULL,
 542   .current_dir =        NULL,
 543   .home_dir =           NULL,
 544   .message =            NULL,
 545   .user_message =       NULL,
 546   .onetime_parent =     NULL,
 547   .pipe_expandn =       NULL,
 548   .return_filename =    NULL,
 549   .self_hostname =      NULL,
 550   .shadow_message =     NULL,
 551 #ifndef DISABLE_TLS
 552   .cipher =             NULL,
 553   .ourcert =            NULL,
 554   .peercert =           NULL,
 555   .peerdn =             NULL,
 556   .ocsp =               OCSP_NOT_REQ,
 557 #endif
 558 #ifdef EXPERIMENTAL_DSN_INFO
 559   .smtp_greeting =      NULL,
 560   .helo_response =      NULL,
 561 #endif
 562   .authenticator =      NULL,
 563   .auth_id =            NULL,
 564   .auth_sndr =          NULL,
 565   .dsn_orcpt =          NULL,
 566   .dsn_flags =          0,
 567   .dsn_aware =          0,
 568   .uid =                (uid_t)(-1),
 569   .gid =                (gid_t)(-1),
 570   .flags =              { 0 },
 571   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 572   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 573   .mode =               -1,
 574   .more_errno =         0,
 575   .delivery_usec =      0,
 576   .basic_errno =        ERRNO_UNKNOWNERROR,
 577   .child_count =        0,
 578   .return_file =        -1,
 579   .special_action =     SPECIAL_NONE,
 580   .transport_return =   DEFER,
 581   .prop = {                                     /* fields that are propagated to children */
 582     .address_data =     NULL,
 583     .domain_data =      NULL,
 584     .localpart_data =   NULL,
 585     .errors_address =   NULL,
 586     .extra_headers =    NULL,
 587     .remove_headers =   NULL,
 588     .variables =        NULL,
 589 #ifdef EXPERIMENTAL_SRS
 590     .srs_sender =       NULL,
 591 #endif
 592     .ignore_error =     FALSE,
 593 #ifdef SUPPORT_I18N
 594     .utf8_msg =         FALSE,
 595     .utf8_downcvt =     FALSE,
 596     .utf8_downcvt_maybe = FALSE
 597 #endif
 598   }
 599 };
 600
 601 uschar *address_file           = NULL;
 602 uschar *address_pipe           = NULL;
 603 tree_node *addresslist_anchor  = NULL;
 604 int     addresslist_count      = 0;
 605 gid_t  *admin_groups           = NULL;
 606
 607 #ifdef EXPERIMENTAL_ARC
 608 struct arc_set *arc_received    = NULL;
 609 int     arc_received_instance   = 0;
 610 int     arc_oldest_pass         = 0;
 611 const uschar *arc_state         = NULL;
 612 const uschar *arc_state_reason  = NULL;
 613 #endif
 614
 615 uschar *authenticated_fail_id  = NULL;
 616 uschar *authenticated_id       = NULL;
 617 uschar *authenticated_sender   = NULL;
 618 auth_instance  *auths          = NULL;
 619 uschar *auth_advertise_hosts   = US"*";
 620 auth_instance auth_defaults    = {
 621     .next =             NULL,
 622     .name =             NULL,
 623     .info =             NULL,
 624     .options_block =    NULL,
 625     .driver_name =      NULL,
 626     .advertise_condition = NULL,
 627     .client_condition = NULL,
 628     .public_name =      NULL,
 629     .set_id =           NULL,
 630     .set_client_id =    NULL,
 631     .mail_auth_condition = NULL,
 632     .server_debug_string = NULL,
 633     .server_condition = NULL,
 634     .client =           FALSE,
 635     .server =           FALSE,
 636     .advertised =       FALSE
 637 };
 638
 639 uschar *auth_defer_msg         = US"reason not recorded";
 640 uschar *auth_defer_user_msg    = US"";
 641 uschar *auth_vars[AUTH_VARS];
 642 int     auto_thaw              = 0;
 643 #ifdef WITH_CONTENT_SCAN
 644 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 645 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 646 #endif
 647
 648 #if BASE_62 == 62
 649 uschar *base62_chars=
 650     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 651 #else
 652 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 653 #endif
 654
 655 uschar *bi_command             = NULL;
 656 uschar *big_buffer             = NULL;
 657 int     big_buffer_size        = BIG_BUFFER_SIZE;
 658 #ifdef EXPERIMENTAL_BRIGHTMAIL
 659 uschar *bmi_alt_location       = NULL;
 660 uschar *bmi_base64_tracker_verdict = NULL;
 661 uschar *bmi_base64_verdict     = NULL;
 662 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 663 int     bmi_deliver            = 1;
 664 int     bmi_run                = 0;
 665 uschar *bmi_verdicts           = NULL;
 666 #endif
 667 int     bsmtp_transaction_linecount = 0;
 668 int     body_8bitmime          = 0;
 669 int     body_linecount         = 0;
 670 int     body_zerocount         = 0;
 671 uschar *bounce_message_file    = NULL;
 672 uschar *bounce_message_text    = NULL;
 673 uschar *bounce_recipient       = NULL;
 674 int     bounce_return_linesize_limit = 998;
 675 int     bounce_return_size_limit = 100*1024;
 676 uschar *bounce_sender_authentication = NULL;
 677
 678 uschar *callout_address        = NULL;
 679 int     callout_cache_domain_positive_expire = 7*24*60*60;
 680 int     callout_cache_domain_negative_expire = 3*60*60;
 681 int     callout_cache_positive_expire = 24*60*60;
 682 int     callout_cache_negative_expire = 2*60*60;
 683 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 684 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 685 int     check_log_inodes       = 100;
 686 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 687 int     check_spool_inodes     = 100;
 688 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 689
 690 uschar *chunking_advertise_hosts = US"*";
 691 unsigned chunking_datasize     = 0;
 692 unsigned chunking_data_left    = 0;
 693 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 694 const pcre *regex_CHUNKING     = NULL;
 695
 696 uschar *client_authenticator   = NULL;
 697 uschar *client_authenticated_id = NULL;
 698 uschar *client_authenticated_sender = NULL;
 699 int     clmacro_count          = 0;
 700 uschar *clmacros[MAX_CLMACROS];
 701 FILE   *config_file            = NULL;
 702 const uschar *config_filename  = NULL;
 703 int     config_lineno          = 0;
 704 #ifdef CONFIGURE_GROUP
 705 gid_t   config_gid             = CONFIGURE_GROUP;
 706 #else
 707 gid_t   config_gid             = 0;
 708 #endif
 709 uschar *config_main_filelist   = US CONFIGURE_FILE
 710                          "\0<-----------Space to patch configure_filename->";
 711 uschar *config_main_filename   = NULL;
 712 uschar *config_main_directory  = NULL;
 713
 714 #ifdef CONFIGURE_OWNER
 715 uid_t   config_uid             = CONFIGURE_OWNER;
 716 #else
 717 uid_t   config_uid             = 0;
 718 #endif
 719
 720 int     connection_max_messages= -1;
 721 uschar *continue_proxy_cipher  = NULL;
 722 uschar *continue_hostname      = NULL;
 723 uschar *continue_host_address  = NULL;
 724 int     continue_sequence      = 1;
 725 uschar *continue_transport     = NULL;
 726
 727 uschar *csa_status             = NULL;
 728 cut_t   cutthrough = {
 729   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 730   .delivery =           FALSE,                          /* when to attempt */
 731   .defer_pass =         FALSE,                          /* on defer: spool locally */
 732   .is_tls =             FALSE,                          /* not a TLS conn yet */
 733   .cctx =               {.sock = -1},                   /* open connection */
 734   .nrcpt =              0,                              /* number of addresses */
 735 };
 736
 737 uschar *daemon_smtp_port       = US"smtp";
 738 int     daemon_startup_retries = 9;
 739 int     daemon_startup_sleep   = 30;
 740
 741 #ifdef EXPERIMENTAL_DCC
 742 uschar *dcc_header             = NULL;
 743 uschar *dcc_result             = NULL;
 744 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 745 uschar *dccifd_options         = US"header";
 746 #endif
 747
 748 int     debug_fd               = -1;
 749 FILE   *debug_file             = NULL;
 750 int     debug_notall[]         = {
 751   Di_memory,
 752   Di_noutf8,
 753   -1
 754 };
 755 bit_table debug_options[]      = { /* must be in alphabetical order and use
 756                                  only the enum values from macro.h */
 757   BIT_TABLE(D, acl),
 758   BIT_TABLE(D, all),
 759   BIT_TABLE(D, auth),
 760   BIT_TABLE(D, deliver),
 761   BIT_TABLE(D, dns),
 762   BIT_TABLE(D, dnsbl),
 763   BIT_TABLE(D, exec),
 764   BIT_TABLE(D, expand),
 765   BIT_TABLE(D, filter),
 766   BIT_TABLE(D, hints_lookup),
 767   BIT_TABLE(D, host_lookup),
 768   BIT_TABLE(D, ident),
 769   BIT_TABLE(D, interface),
 770   BIT_TABLE(D, lists),
 771   BIT_TABLE(D, load),
 772   BIT_TABLE(D, local_scan),
 773   BIT_TABLE(D, lookup),
 774   BIT_TABLE(D, memory),
 775   BIT_TABLE(D, noutf8),
 776   BIT_TABLE(D, pid),
 777   BIT_TABLE(D, process_info),
 778   BIT_TABLE(D, queue_run),
 779   BIT_TABLE(D, receive),
 780   BIT_TABLE(D, resolver),
 781   BIT_TABLE(D, retry),
 782   BIT_TABLE(D, rewrite),
 783   BIT_TABLE(D, route),
 784   BIT_TABLE(D, timestamp),
 785   BIT_TABLE(D, tls),
 786   BIT_TABLE(D, transport),
 787   BIT_TABLE(D, uid),
 788   BIT_TABLE(D, verify),
 789 };
 790 int     debug_options_count    = nelem(debug_options);
 791
 792 unsigned int debug_selector    = 0;
 793 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 794 uschar *delay_warning_condition=
 795   US"${if or {"
 796             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 797             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 798             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 799             "} {no}{yes}}";
 800 uschar *deliver_address_data   = NULL;
 801 int     deliver_datafile       = -1;
 802 const uschar *deliver_domain   = NULL;
 803 uschar *deliver_domain_data    = NULL;
 804 const uschar *deliver_domain_orig = NULL;
 805 const uschar *deliver_domain_parent = NULL;
 806 time_t  deliver_frozen_at      = 0;
 807 uschar *deliver_home           = NULL;
 808 const uschar *deliver_host     = NULL;
 809 const uschar *deliver_host_address = NULL;
 810 int     deliver_host_port      = 0;
 811 uschar *deliver_in_buffer      = NULL;
 812 ino_t   deliver_inode          = 0;
 813 uschar *deliver_localpart      = NULL;
 814 uschar *deliver_localpart_data = NULL;
 815 uschar *deliver_localpart_orig = NULL;
 816 uschar *deliver_localpart_parent = NULL;
 817 uschar *deliver_localpart_prefix = NULL;
 818 uschar *deliver_localpart_suffix = NULL;
 819 uschar *deliver_out_buffer     = NULL;
 820 int     deliver_queue_load_max = -1;
 821 address_item  *deliver_recipients = NULL;
 822 uschar *deliver_selectstring   = NULL;
 823 uschar *deliver_selectstring_sender = NULL;
 824
 825 #ifndef DISABLE_DKIM
 826 unsigned dkim_collect_input      = 0;
 827 uschar *dkim_cur_signer          = NULL;
 828 int     dkim_key_length          = 0;
 829 void   *dkim_signatures          = NULL;
 830 uschar *dkim_signers             = NULL;
 831 uschar *dkim_signing_domain      = NULL;
 832 uschar *dkim_signing_selector    = NULL;
 833 uschar *dkim_verify_overall      = NULL;
 834 uschar *dkim_verify_signers      = US"$dkim_signers";
 835 uschar *dkim_verify_status       = NULL;
 836 uschar *dkim_verify_reason       = NULL;
 837 #endif
 838 #ifdef EXPERIMENTAL_DMARC
 839 uschar *dmarc_domain_policy     = NULL;
 840 uschar *dmarc_forensic_sender   = NULL;
 841 uschar *dmarc_history_file      = NULL;
 842 uschar *dmarc_status            = NULL;
 843 uschar *dmarc_status_text       = NULL;
 844 uschar *dmarc_tld_file          = US DMARC_TLD_FILE;
 845 uschar *dmarc_used_domain       = NULL;
 846 #endif
 847
 848 uschar *dns_again_means_nonexist = NULL;
 849 int     dns_csa_search_limit   = 5;
 850 int     dns_cname_loops        = 1;
 851 #ifdef SUPPORT_DANE
 852 int     dns_dane_ok            = -1;
 853 #endif
 854 uschar *dns_ipv4_lookup        = NULL;
 855 int     dns_retrans            = 0;
 856 int     dns_retry              = 0;
 857 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 858 uschar *dns_trust_aa           = NULL;
 859 int     dns_use_edns0          = -1; /* <0 = not coerced */
 860 uschar *dnslist_domain         = NULL;
 861 uschar *dnslist_matched        = NULL;
 862 uschar *dnslist_text           = NULL;
 863 uschar *dnslist_value          = NULL;
 864 tree_node *domainlist_anchor   = NULL;
 865 int     domainlist_count       = 0;
 866 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 867
 868 int     errno_quota            = ERRNO_QUOTA;
 869 uschar *errors_copy            = NULL;
 870 int     error_handling         = ERRORS_SENDER;
 871 uschar *errors_reply_to        = NULL;
 872 int     errors_sender_rc       = EXIT_FAILURE;
 873 #ifndef DISABLE_EVENT
 874 uschar *event_action             = NULL;        /* expansion for delivery events */
 875 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 876 int     event_defer_errno        = 0;
 877 const uschar *event_name         = NULL;        /* event name variable */
 878 #endif
 879
 880
 881 gid_t   exim_gid               = EXIM_GID;
 882 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 883                         "\0<---------------Space to patch exim_path->";
 884 uid_t   exim_uid               = EXIM_UID;
 885 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 886 int     expand_forbid          = 0;
 887 int     expand_nlength[EXPAND_MAXN+1];
 888 int     expand_nmax            = -1;
 889 uschar *expand_nstring[EXPAND_MAXN+1];
 890 uschar *expand_string_message;
 891 uschar *extra_local_interfaces = NULL;
 892
 893 int     fake_response          = OK;
 894 uschar *fake_response_text     = US"Your message has been rejected but is "
 895                                    "being kept for evaluation.\nIf it was a "
 896                                    "legitimate message, it may still be "
 897                                    "delivered to the target recipient(s).";
 898 int     filter_n[FILTER_VARIABLE_COUNT];
 899 int     filter_sn[FILTER_VARIABLE_COUNT];
 900 int     filter_test            = FTEST_NONE;
 901 uschar *filter_test_sfile      = NULL;
 902 uschar *filter_test_ufile      = NULL;
 903 uschar *filter_thisaddress     = NULL;
 904 int     finduser_retries       = 0;
 905 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 906 uschar *freeze_tell            = NULL;
 907 uschar *freeze_tell_config     = NULL;
 908 uschar *fudged_queue_times     = US"";
 909
 910 uschar *gecos_name             = NULL;
 911 uschar *gecos_pattern          = NULL;
 912 rewrite_rule  *global_rewrite_rules = NULL;
 913
 914 volatile sig_atomic_t had_command_timeout = 0;
 915 volatile sig_atomic_t had_command_sigterm = 0;
 916 volatile sig_atomic_t had_data_timeout    = 0;
 917 volatile sig_atomic_t had_data_sigint     = 0;
 918 uschar *headers_charset        = US HEADERS_CHARSET;
 919 int     header_insert_maxlen   = 64 * 1024;
 920 header_line  *header_last      = NULL;
 921 header_line  *header_list      = NULL;
 922 int     header_maxsize         = HEADER_MAXSIZE;
 923 int     header_line_maxsize    = 0;
 924
 925 header_name header_names[] = {
 926   /* name               len     allow_resent    htype */
 927   { US"bcc",            3,      TRUE,           htype_bcc },
 928   { US"cc",             2,      TRUE,           htype_cc },
 929   { US"date",           4,      TRUE,           htype_date },
 930   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 931   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 932   { US"from",           4,      TRUE,           htype_from },
 933   { US"message-id",    10,      TRUE,           htype_id },
 934   { US"received",       8,      FALSE,          htype_received },
 935   { US"reply-to",       8,      FALSE,          htype_reply_to },
 936   { US"return-path",   11,      FALSE,          htype_return_path },
 937   { US"sender",         6,      TRUE,           htype_sender },
 938   { US"subject",        7,      FALSE,          htype_subject },
 939   { US"to",             2,      TRUE,           htype_to }
 940 };
 941
 942 int header_names_size          = nelem(header_names);
 943
 944 uschar *helo_accept_junk_hosts = NULL;
 945 uschar *helo_allow_chars       = US"";
 946 uschar *helo_lookup_domains    = US"@ : @[]";
 947 uschar *helo_try_verify_hosts  = NULL;
 948 uschar *helo_verify_hosts      = NULL;
 949 const uschar *hex_digits       = CUS"0123456789abcdef";
 950 uschar *hold_domains           = NULL;
 951 uschar *host_data              = NULL;
 952 uschar *host_lookup            = NULL;
 953 uschar *host_lookup_order      = US"bydns:byaddr";
 954 uschar *host_lookup_msg        = US"";
 955 int     host_number            = 0;
 956 uschar *host_number_string     = NULL;
 957 uschar *host_reject_connection = NULL;
 958 tree_node *hostlist_anchor     = NULL;
 959 int     hostlist_count         = 0;
 960 uschar *hosts_treat_as_local   = NULL;
 961 uschar *hosts_connection_nolog = NULL;
 962
 963 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 964 uschar *ignore_fromline_hosts  = NULL;
 965 int     inetd_wait_timeout     = -1;
 966 uschar *initial_cwd            = NULL;
 967 uschar *interface_address      = NULL;
 968 int     interface_port         = -1;
 969 uschar *iterate_item           = NULL;
 970
 971 int     journal_fd             = -1;
 972
 973 uschar *keep_environment       = NULL;
 974
 975 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 976
 977 uschar *eldap_dn               = NULL;
 978 int     load_average           = -2;
 979 uschar *local_from_prefix      = NULL;
 980 uschar *local_from_suffix      = NULL;
 981
 982 #if HAVE_IPV6
 983 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 984 #else
 985 uschar *local_interfaces       = US"0.0.0.0";
 986 #endif
 987
 988 #ifdef HAVE_LOCAL_SCAN
 989 uschar *local_scan_data        = NULL;
 990 int     local_scan_timeout     = 5*60;
 991 #endif
 992 gid_t   local_user_gid         = (gid_t)(-1);
 993 uid_t   local_user_uid         = (uid_t)(-1);
 994
 995 tree_node *localpartlist_anchor= NULL;
 996 int     localpartlist_count    = 0;
 997 uschar *log_buffer             = NULL;
 998
 999 int     log_default[]          = { /* for initializing log_selector */
1000   Li_acl_warn_skipped,
1001   Li_connection_reject,
1002   Li_delay_delivery,
1003   Li_dkim,
1004   Li_dnslist_defer,
1005   Li_etrn,
1006   Li_host_lookup_failed,
1007   Li_lost_incoming_connection,
1008   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1009   Li_msg_id,
1010   Li_queue_run,
1011   Li_rejected_header,
1012   Li_retry_defer,
1013   Li_sender_verify_fail,
1014   Li_size_reject,
1015   Li_skip_delivery,
1016   Li_smtp_confirmation,
1017   Li_tls_certificate_verified,
1018   Li_tls_cipher,
1019   -1
1020 };
1021
1022 uschar *log_file_path          = US LOG_FILE_PATH
1023                            "\0<--------------Space to patch log_file_path->";
1024
1025 int     log_notall[]           = {
1026   -1
1027 };
1028 bit_table log_options[]        = { /* must be in alphabetical order,
1029                                 with definitions from enum logbit. */
1030   BIT_TABLE(L, 8bitmime),
1031   BIT_TABLE(L, acl_warn_skipped),
1032   BIT_TABLE(L, address_rewrite),
1033   BIT_TABLE(L, all),
1034   BIT_TABLE(L, all_parents),
1035   BIT_TABLE(L, arguments),
1036   BIT_TABLE(L, connection_reject),
1037   BIT_TABLE(L, delay_delivery),
1038   BIT_TABLE(L, deliver_time),
1039   BIT_TABLE(L, delivery_size),
1040 #ifndef DISABLE_DKIM
1041   BIT_TABLE(L, dkim),
1042   BIT_TABLE(L, dkim_verbose),
1043 #endif
1044   BIT_TABLE(L, dnslist_defer),
1045   BIT_TABLE(L, dnssec),
1046   BIT_TABLE(L, etrn),
1047   BIT_TABLE(L, host_lookup_failed),
1048   BIT_TABLE(L, ident_timeout),
1049   BIT_TABLE(L, incoming_interface),
1050   BIT_TABLE(L, incoming_port),
1051   BIT_TABLE(L, lost_incoming_connection),
1052   BIT_TABLE(L, millisec),
1053   BIT_TABLE(L, msg_id),
1054   BIT_TABLE(L, msg_id_created),
1055   BIT_TABLE(L, outgoing_interface),
1056   BIT_TABLE(L, outgoing_port),
1057   BIT_TABLE(L, pid),
1058   BIT_TABLE(L, pipelining),
1059 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1060   BIT_TABLE(L, proxy),
1061 #endif
1062   BIT_TABLE(L, queue_run),
1063   BIT_TABLE(L, queue_time),
1064   BIT_TABLE(L, queue_time_overall),
1065   BIT_TABLE(L, receive_time),
1066   BIT_TABLE(L, received_recipients),
1067   BIT_TABLE(L, received_sender),
1068   BIT_TABLE(L, rejected_header),
1069   { US"rejected_headers", Li_rejected_header },
1070   BIT_TABLE(L, retry_defer),
1071   BIT_TABLE(L, return_path_on_delivery),
1072   BIT_TABLE(L, sender_on_delivery),
1073   BIT_TABLE(L, sender_verify_fail),
1074   BIT_TABLE(L, size_reject),
1075   BIT_TABLE(L, skip_delivery),
1076   BIT_TABLE(L, smtp_confirmation),
1077   BIT_TABLE(L, smtp_connection),
1078   BIT_TABLE(L, smtp_incomplete_transaction),
1079   BIT_TABLE(L, smtp_mailauth),
1080   BIT_TABLE(L, smtp_no_mail),
1081   BIT_TABLE(L, smtp_protocol_error),
1082   BIT_TABLE(L, smtp_syntax_error),
1083   BIT_TABLE(L, subject),
1084   BIT_TABLE(L, tls_certificate_verified),
1085   BIT_TABLE(L, tls_cipher),
1086   BIT_TABLE(L, tls_peerdn),
1087   BIT_TABLE(L, tls_resumption),
1088   BIT_TABLE(L, tls_sni),
1089   BIT_TABLE(L, unknown_in_list),
1090 };
1091 int     log_options_count      = nelem(log_options);
1092
1093 int     log_reject_target      = 0;
1094 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1095 uschar *log_selector_string    = NULL;
1096 FILE   *log_stderr             = NULL;
1097 uschar *login_sender_address   = NULL;
1098 uschar *lookup_dnssec_authenticated = NULL;
1099 int     lookup_open_max        = 25;
1100 uschar *lookup_value           = NULL;
1101
1102 macro_item *macros_user        = NULL;
1103 uschar *mailstore_basename     = NULL;
1104 #ifdef WITH_CONTENT_SCAN
1105 uschar *malware_name           = NULL;  /* Virus Name */
1106 #endif
1107 int     max_received_linelength= 0;
1108 int     max_username_length    = 0;
1109 int     message_age            = 0;
1110 uschar *message_body           = NULL;
1111 uschar *message_body_end       = NULL;
1112 int     message_body_size      = 0;
1113 int     message_body_visible   = 500;
1114 int     message_ended          = END_NOTSTARTED;
1115 uschar *message_headers        = NULL;
1116 uschar *message_id;
1117 uschar *message_id_domain      = NULL;
1118 uschar *message_id_text        = NULL;
1119 struct timeval message_id_tv   = { 0, 0 };
1120 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1121 uschar *message_id_external;
1122 int     message_linecount      = 0;
1123 int     message_size           = 0;
1124 uschar *message_size_limit     = US"50M";
1125 #ifdef SUPPORT_I18N
1126 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1127 #endif
1128 uschar  message_subdir[2]      = { 0, 0 };
1129 uschar *message_reference      = NULL;
1130
1131 /* MIME ACL expandables */
1132 #ifdef WITH_CONTENT_SCAN
1133 int     mime_anomaly_level     = 0;
1134 const uschar *mime_anomaly_text      = NULL;
1135 uschar *mime_boundary          = NULL;
1136 uschar *mime_charset           = NULL;
1137 uschar *mime_content_description = NULL;
1138 uschar *mime_content_disposition = NULL;
1139 uschar *mime_content_id        = NULL;
1140 unsigned int mime_content_size = 0;
1141 uschar *mime_content_transfer_encoding = NULL;
1142 uschar *mime_content_type      = NULL;
1143 uschar *mime_decoded_filename  = NULL;
1144 uschar *mime_filename          = NULL;
1145 int     mime_is_multipart      = 0;
1146 int     mime_is_coverletter    = 0;
1147 int     mime_is_rfc822         = 0;
1148 int     mime_part_count        = -1;
1149 #endif
1150
1151 uid_t  *never_users            = NULL;
1152
1153 const int on                   = 1;     /* for setsockopt */
1154 const int off                  = 0;
1155
1156 uid_t   original_euid;
1157 gid_t   originator_gid;
1158 uschar *originator_login       = NULL;
1159 uschar *originator_name        = NULL;
1160 uid_t   originator_uid;
1161 uschar *override_local_interfaces = NULL;
1162 uschar *override_pid_file_path = NULL;
1163
1164 uschar *percent_hack_domains   = NULL;
1165 uschar *pid_file_path          = US PID_FILE_PATH
1166                            "\0<--------------Space to patch pid_file_path->";
1167 #ifdef SUPPORT_PIPE_CONNECT
1168 uschar *pipe_connect_advertise_hosts = US"*";
1169 #endif
1170 uschar *pipelining_advertise_hosts = US"*";
1171 uschar *primary_hostname       = NULL;
1172 uschar *process_info;
1173 int     process_info_len       = 0;
1174 uschar *process_log_path       = NULL;
1175
1176 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1177 uschar *hosts_proxy            = NULL;
1178 uschar *proxy_external_address = NULL;
1179 int     proxy_external_port    = 0;
1180 uschar *proxy_local_address    = NULL;
1181 int     proxy_local_port       = 0;
1182 #endif
1183
1184 uschar *prvscheck_address      = NULL;
1185 uschar *prvscheck_keynum       = NULL;
1186 uschar *prvscheck_result       = NULL;
1187
1188
1189 const uschar *qualify_domain_recipient = NULL;
1190 uschar *qualify_domain_sender  = NULL;
1191 uschar *queue_domains          = NULL;
1192 int     queue_interval         = -1;
1193 uschar *queue_name             = US"";
1194 uschar *queue_only_file        = NULL;
1195 int     queue_only_load        = -1;
1196 uschar *queue_run_max          = US"5";
1197 pid_t   queue_run_pid          = (pid_t)0;
1198 int     queue_run_pipe         = -1;
1199 uschar *queue_smtp_domains     = NULL;
1200
1201 uint32_t random_seed           = 0;
1202 tree_node *ratelimiters_cmd    = NULL;
1203 tree_node *ratelimiters_conn   = NULL;
1204 tree_node *ratelimiters_mail   = NULL;
1205 uschar *raw_active_hostname    = NULL;
1206 uschar *raw_sender             = NULL;
1207 uschar **raw_recipients        = NULL;
1208 int     raw_recipients_count   = 0;
1209
1210 int     rcpt_count             = 0;
1211 int     rcpt_fail_count        = 0;
1212 int     rcpt_defer_count       = 0;
1213 gid_t   real_gid;
1214 uid_t   real_uid;
1215 int     receive_linecount      = 0;
1216 int     receive_messagecount   = 0;
1217 int     receive_timeout        = 0;
1218 int     received_count         = 0;
1219 uschar *received_for           = NULL;
1220
1221 /*  This is the default text for Received headers generated by Exim. The
1222 date  will be automatically added on the end. */
1223
1224 uschar *received_header_text   = US
1225      "Received: "
1226      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1227        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1228          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1229      "by $primary_hostname "
1230      "${if def:received_protocol {with $received_protocol }}"
1231 #ifndef DISABLE_TLS
1232      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1233 #endif
1234      "(Exim $version_number)\n\t"
1235      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1236      "id $message_exim_id"
1237      "${if def:received_for {\n\tfor $received_for}}"
1238      "\0<---------------Space to patch received_header_text->";
1239
1240 int     received_headers_max   = 30;
1241 uschar *received_protocol      = NULL;
1242 struct timeval received_time   = { 0, 0 };
1243 struct timeval received_time_taken = { 0, 0 };
1244 uschar *recipient_data         = NULL;
1245 uschar *recipient_unqualified_hosts = NULL;
1246 uschar *recipient_verify_failure = NULL;
1247 int     recipients_count       = 0;
1248 recipient_item  *recipients_list = NULL;
1249 int     recipients_list_max    = 0;
1250 int     recipients_max         = 0;
1251 const pcre *regex_AUTH         = NULL;
1252 const pcre *regex_check_dns_names = NULL;
1253 const pcre *regex_From         = NULL;
1254 const pcre *regex_IGNOREQUOTA  = NULL;
1255 const pcre *regex_PIPELINING   = NULL;
1256 const pcre *regex_SIZE         = NULL;
1257 #ifdef SUPPORT_PIPE_CONNECT
1258 const pcre *regex_EARLY_PIPE   = NULL;
1259 #endif
1260 const pcre *regex_ismsgid      = NULL;
1261 const pcre *regex_smtp_code    = NULL;
1262 uschar *regex_vars[REGEX_VARS];
1263 #ifdef WHITELIST_D_MACROS
1264 const pcre *regex_whitelisted_macro = NULL;
1265 #endif
1266 #ifdef WITH_CONTENT_SCAN
1267 uschar *regex_match_string     = NULL;
1268 #endif
1269 int     remote_delivery_count  = 0;
1270 int     remote_max_parallel    = 2;
1271 uschar *remote_sort_domains    = NULL;
1272 int     retry_data_expire      = 7*24*60*60;
1273 int     retry_interval_max     = 24*60*60;
1274 int     retry_maximum_timeout  = 0;        /* set from retry config */
1275 retry_config  *retries         = NULL;
1276 uschar *return_path            = NULL;
1277 int     rewrite_existflags     = 0;
1278 uschar *rfc1413_hosts          = US"@[]";
1279 int     rfc1413_query_timeout  = 0;
1280 uid_t   root_gid               = ROOT_GID;
1281 uid_t   root_uid               = ROOT_UID;
1282
1283 router_instance  *routers  = NULL;
1284 router_instance  router_defaults = {
1285     .next =                     NULL,
1286     .name =                     NULL,
1287     .info =                     NULL,
1288     .options_block =            NULL,
1289     .driver_name =              NULL,
1290
1291     .address_data =             NULL,
1292 #ifdef EXPERIMENTAL_BRIGHTMAIL
1293     .bmi_rule =                 NULL,
1294 #endif
1295     .cannot_route_message =     NULL,
1296     .condition =                NULL,
1297     .current_directory =        NULL,
1298     .debug_string =             NULL,
1299     .domains =                  NULL,
1300     .errors_to =                NULL,
1301     .expand_gid =               NULL,
1302     .expand_uid =               NULL,
1303     .expand_more =              NULL,
1304     .expand_unseen =            NULL,
1305     .extra_headers =            NULL,
1306     .fallback_hosts =           NULL,
1307     .home_directory =           NULL,
1308     .ignore_target_hosts =      NULL,
1309     .local_parts =              NULL,
1310     .pass_router_name =         NULL,
1311     .prefix =                   NULL,
1312     .redirect_router_name =     NULL,
1313     .remove_headers =           NULL,
1314     .require_files =            NULL,
1315     .router_home_directory =    NULL,
1316     .self =                     US"freeze",
1317     .senders =                  NULL,
1318     .suffix =                   NULL,
1319     .translate_ip_address =     NULL,
1320     .transport_name =           NULL,
1321
1322     .address_test =             TRUE,
1323 #ifdef EXPERIMENTAL_BRIGHTMAIL
1324     .bmi_deliver_alternate =    FALSE,
1325     .bmi_deliver_default =      FALSE,
1326     .bmi_dont_deliver =         FALSE,
1327 #endif
1328     .expn =                     TRUE,
1329     .caseful_local_part =       FALSE,
1330     .check_local_user =         FALSE,
1331     .disable_logging =          FALSE,
1332     .fail_verify_recipient =    FALSE,
1333     .fail_verify_sender =       FALSE,
1334     .gid_set =                  FALSE,
1335     .initgroups =               FALSE,
1336     .log_as_local =             TRUE_UNSET,
1337     .more =                     TRUE,
1338     .pass_on_timeout =          FALSE,
1339     .prefix_optional =          FALSE,
1340     .repeat_use =               TRUE,
1341     .retry_use_local_part =     TRUE_UNSET,
1342     .same_domain_copy_routing = FALSE,
1343     .self_rewrite =             FALSE,
1344     .set =                      NULL,
1345     .suffix_optional =          FALSE,
1346     .verify_only =              FALSE,
1347     .verify_recipient =         TRUE,
1348     .verify_sender =            TRUE,
1349     .uid_set =                  FALSE,
1350     .unseen =                   FALSE,
1351     .dsn_lasthop =              FALSE,
1352
1353     .self_code =                self_freeze,
1354     .uid =                      (uid_t)(-1),
1355     .gid =                      (gid_t)(-1),
1356
1357     .fallback_hostlist =        NULL,
1358     .transport =                NULL,
1359     .pass_router =              NULL,
1360     .redirect_router =          NULL,
1361
1362     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1363 };
1364
1365 uschar *router_name            = NULL;
1366 tree_node *router_var          = NULL;
1367
1368 ip_address_item *running_interfaces = NULL;
1369
1370 /* This is a weird one. The following string gets patched in the binary by the
1371 script that sets up a copy of Exim for running in the test harness. It seems
1372 that compilers are now clever, and share constant strings if they can.
1373 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1374 make use of the end of this string in order to save space. So the patching then
1375 wrecks this. We defeat this optimization by adding some additional characters
1376 onto the end of the string. */
1377
1378 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1379
1380 int     runrc                  = 0;
1381
1382 uschar *search_error_message   = NULL;
1383 uschar *self_hostname          = NULL;
1384 uschar *sender_address         = NULL;
1385 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1386 uschar *sender_address_data    = NULL;
1387 uschar *sender_address_unrewritten = NULL;
1388 uschar *sender_data            = NULL;
1389 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1390 uschar *sender_fullhost        = NULL;
1391 uschar *sender_helo_name       = NULL;
1392 uschar **sender_host_aliases   = &no_aliases;
1393 uschar *sender_host_address    = NULL;
1394 uschar *sender_host_authenticated = NULL;
1395 uschar *sender_host_auth_pubname  = NULL;
1396 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1397 uschar *sender_host_name       = NULL;
1398 int     sender_host_port       = 0;
1399 uschar *sender_ident           = NULL;
1400 uschar *sender_rate            = NULL;
1401 uschar *sender_rate_limit      = NULL;
1402 uschar *sender_rate_period     = NULL;
1403 uschar *sender_rcvhost         = NULL;
1404 uschar *sender_unqualified_hosts = NULL;
1405 uschar *sender_verify_failure = NULL;
1406 address_item *sender_verified_list  = NULL;
1407 address_item *sender_verified_failed = NULL;
1408 int     sender_verified_rc     = -1;
1409 uschar *sending_ip_address     = NULL;
1410 int     sending_port           = -1;
1411 SIGNAL_BOOL sigalrm_seen       = FALSE;
1412 const uschar *sigalarm_setter  = NULL;
1413 uschar **sighup_argv           = NULL;
1414 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1415 int     smtp_accept_count      = 0;
1416 int     smtp_accept_max        = 20;
1417 int     smtp_accept_max_nonmail= 10;
1418 uschar *smtp_accept_max_nonmail_hosts = US"*";
1419 int     smtp_accept_max_per_connection = 1000;
1420 uschar *smtp_accept_max_per_host = NULL;
1421 int     smtp_accept_queue      = 0;
1422 int     smtp_accept_queue_per_connection = 10;
1423 int     smtp_accept_reserve    = 0;
1424 uschar *smtp_active_hostname   = NULL;
1425 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1426                              "Exim $version_number $tod_full"
1427                              "\0<---------------Space to patch smtp_banner->";
1428 int     smtp_ch_index          = 0;
1429 uschar *smtp_cmd_argument      = NULL;
1430 uschar *smtp_cmd_buffer        = NULL;
1431 struct timeval smtp_connection_start  = {0,0};
1432 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1433 int     smtp_connect_backlog   = 20;
1434 double  smtp_delay_mail        = 0.0;
1435 double  smtp_delay_rcpt        = 0.0;
1436 FILE   *smtp_in                = NULL;
1437 int     smtp_load_reserve      = -1;
1438 int     smtp_mailcmd_count     = 0;
1439 FILE   *smtp_out               = NULL;
1440 uschar *smtp_etrn_command      = NULL;
1441 int     smtp_max_synprot_errors= 3;
1442 int     smtp_max_unknown_commands = 3;
1443 uschar *smtp_notquit_reason    = NULL;
1444 uschar *smtp_ratelimit_hosts   = NULL;
1445 uschar *smtp_ratelimit_mail    = NULL;
1446 uschar *smtp_ratelimit_rcpt    = NULL;
1447 uschar *smtp_read_error        = US"";
1448 int     smtp_receive_timeout   = 5*60;
1449 uschar *smtp_receive_timeout_s = NULL;
1450 uschar *smtp_reserve_hosts     = NULL;
1451 int     smtp_rlm_base          = 0;
1452 double  smtp_rlm_factor        = 0.0;
1453 int     smtp_rlm_limit         = 0;
1454 int     smtp_rlm_threshold     = INT_MAX;
1455 int     smtp_rlr_base          = 0;
1456 double  smtp_rlr_factor        = 0.0;
1457 int     smtp_rlr_limit         = 0;
1458 int     smtp_rlr_threshold     = INT_MAX;
1459 unsigned smtp_peer_options     = 0;
1460 unsigned smtp_peer_options_wrap= 0;
1461 #ifdef SUPPORT_I18N
1462 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1463 #endif
1464
1465 #ifdef WITH_CONTENT_SCAN
1466 uschar *spamd_address          = US"127.0.0.1 783";
1467 uschar *spam_bar               = NULL;
1468 uschar *spam_report            = NULL;
1469 uschar *spam_action            = NULL;
1470 uschar *spam_score             = NULL;
1471 uschar *spam_score_int         = NULL;
1472 #endif
1473 #ifdef SUPPORT_SPF
1474 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1475 uschar *spf_header_comment     = NULL;
1476 uschar *spf_received           = NULL;
1477 uschar *spf_result             = NULL;
1478 uschar *spf_smtp_comment       = NULL;
1479 #endif
1480
1481 FILE   *spool_data_file        = NULL;
1482 uschar *spool_directory        = US SPOOL_DIRECTORY
1483                            "\0<--------------Space to patch spool_directory->";
1484 #ifdef EXPERIMENTAL_SRS
1485 uschar *srs_config             = NULL;
1486 uschar *srs_db_address         = NULL;
1487 uschar *srs_db_key             = NULL;
1488 int     srs_hashlength         = 6;
1489 int     srs_hashmin            = -1;
1490 int     srs_maxage             = 31;
1491 uschar *srs_orig_recipient     = NULL;
1492 uschar *srs_orig_sender        = NULL;
1493 uschar *srs_recipient          = NULL;
1494 uschar *srs_secrets            = NULL;
1495 uschar *srs_status             = NULL;
1496 #endif
1497 int     string_datestamp_offset= -1;
1498 int     string_datestamp_length= 0;
1499 int     string_datestamp_type  = -1;
1500 uschar *submission_domain      = NULL;
1501 uschar *submission_name        = NULL;
1502 int     syslog_facility        = LOG_MAIL;
1503 uschar *syslog_processname     = US"exim";
1504 uschar *system_filter          = NULL;
1505
1506 uschar *system_filter_directory_transport = NULL;
1507 uschar *system_filter_file_transport = NULL;
1508 uschar *system_filter_pipe_transport = NULL;
1509 uschar *system_filter_reply_transport = NULL;
1510
1511 gid_t   system_filter_gid      = 0;
1512 uid_t   system_filter_uid      = (uid_t)-1;
1513
1514 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1515 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1516 #ifdef USE_TCP_WRAPPERS
1517 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1518 #endif
1519 int     test_harness_load_avg  = 0;
1520 int     thismessage_size_limit = 0;
1521 int     timeout_frozen_after   = 0;
1522
1523 transport_instance  *transports = NULL;
1524
1525 transport_instance  transport_defaults = {
1526     .next =                     NULL,
1527     .name =                     NULL,
1528     .info =                     NULL,
1529     .options_block =            NULL,
1530     .driver_name =              NULL,
1531     .setup =                    NULL,
1532     .batch_max =                1,
1533     .batch_id =                 NULL,
1534     .home_dir =                 NULL,
1535     .current_dir =              NULL,
1536     .expand_multi_domain =      NULL,
1537     .multi_domain =             TRUE,
1538     .overrides_hosts =          FALSE,
1539     .max_addresses =            100,
1540     .connection_max_messages =  500,
1541     .deliver_as_creator =       FALSE,
1542     .disable_logging =          FALSE,
1543     .initgroups =               FALSE,
1544     .uid_set =                  FALSE,
1545     .gid_set =                  FALSE,
1546     .uid =                      (uid_t)(-1),
1547     .gid =                      (gid_t)(-1),
1548     .expand_uid =               NULL,
1549     .expand_gid =               NULL,
1550     .warn_message =             NULL,
1551     .shadow =                   NULL,
1552     .shadow_condition =         NULL,
1553     .filter_command =           NULL,
1554     .add_headers =              NULL,
1555     .remove_headers =           NULL,
1556     .return_path =              NULL,
1557     .debug_string =             NULL,
1558     .max_parallel =             NULL,
1559     .message_size_limit =       NULL,
1560     .headers_rewrite =          NULL,
1561     .rewrite_rules =            NULL,
1562     .rewrite_existflags =       0,
1563     .filter_timeout =           300,
1564     .body_only =                FALSE,
1565     .delivery_date_add =        FALSE,
1566     .envelope_to_add =          FALSE,
1567     .headers_only =             FALSE,
1568     .rcpt_include_affixes =     FALSE,
1569     .return_path_add =          FALSE,
1570     .return_output =            FALSE,
1571     .return_fail_output =       FALSE,
1572     .log_output =               FALSE,
1573     .log_fail_output =          FALSE,
1574     .log_defer_output =         FALSE,
1575     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1576                                                  1 nor 0 so can detect unset */
1577 #ifndef DISABLE_EVENT
1578    .event_action =              NULL
1579 #endif
1580 };
1581
1582 int     transport_count;
1583 uschar *transport_name          = NULL;
1584 int     transport_newlines;
1585 const uschar **transport_filter_argv  = NULL;
1586 int     transport_filter_timeout;
1587 int     transport_write_timeout= 0;
1588
1589 tree_node  *tree_dns_fails     = NULL;
1590 tree_node  *tree_duplicates    = NULL;
1591 tree_node  *tree_nonrecipients = NULL;
1592 tree_node  *tree_unusable      = NULL;
1593
1594 gid_t  *trusted_groups         = NULL;
1595 uid_t  *trusted_users          = NULL;
1596 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1597
1598 uschar *unknown_login          = NULL;
1599 uschar *unknown_username       = NULL;
1600 uschar *untrusted_set_sender   = NULL;
1601
1602 /*  A regex for matching a "From_" line in an incoming message, in the form
1603
1604     From ph10 Fri Jan  5 12:35 GMT 1996
1605
1606 which  the "mail" commands send to the MTA (undocumented, of course), or in
1607 the  form
1608
1609     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1610
1611 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1612 Because  of variations in time formats, just match up to the minutes. That
1613 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1614 so  just require one digit for hours and minutes. The weekday is also absent
1615 in  some forms. */
1616
1617 uschar *uucp_from_pattern      = US
1618    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1619    "(?:"                                          /* Non-extracting bracket */
1620    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1621    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1622    ")"                                            /* End alternation */
1623    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1624
1625 uschar *uucp_from_sender       = US"$1";
1626
1627 uschar *verify_mode            = NULL;
1628 uschar *version_copyright      =
1629  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1630    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1631 uschar *version_date           = US"?";
1632 uschar *version_cnumber        = US"????";
1633 uschar *version_string         = US"?";
1634
1635 uschar *warn_message_file      = NULL;
1636 int     warning_count          = 0;
1637 uschar *warnmsg_delay          = NULL;
1638 uschar *warnmsg_recipients     = NULL;
1639
1640
1641 /*  End of globals.c */