src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) The Exim Maintainers 2020 - 2024 */
   6 /* Copyright (c) University of Cambridge 1995 - 2018 */
   7 /* See the file NOTICE for conditions of use and distribution. */
   8 /* SPDX-License-Identifier: GPL-2.0-or-later */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* Generic options for auths, all of which live inside auth_instance
  17 data blocks and hence have the opt_public flag set. */
  18
  19 optionlist optionlist_auths[] = {
  20   { "client_condition", opt_stringptr | opt_public,
  21                  OPT_OFF(auth_instance, client_condition) },
  22   { "client_set_id", opt_stringptr | opt_public,
  23                  OPT_OFF(auth_instance, set_client_id) },
  24   { "driver",        opt_stringptr | opt_public,
  25                  OPT_OFF(auth_instance, drinst.driver_name) },
  26   { "public_name",   opt_stringptr | opt_public,
  27                  OPT_OFF(auth_instance, public_name) },
  28   { "server_advertise_condition", opt_stringptr | opt_public,
  29                  OPT_OFF(auth_instance, advertise_condition)},
  30   { "server_condition", opt_stringptr | opt_public,
  31                  OPT_OFF(auth_instance, server_condition) },
  32   { "server_debug_print", opt_stringptr | opt_public,
  33                  OPT_OFF(auth_instance, server_debug_string) },
  34   { "server_mail_auth_condition", opt_stringptr | opt_public,
  35                  OPT_OFF(auth_instance, mail_auth_condition) },
  36   { "server_set_id", opt_stringptr | opt_public,
  37                  OPT_OFF(auth_instance, set_id) }
  38 };
  39
  40 int     optionlist_auths_size = nelem(optionlist_auths);
  41
  42 /* An empty host aliases list. */
  43
  44 uschar *no_aliases             = NULL;
  45
  46
  47 /* For comments on these variables, see globals.h. I'm too idle to
  48 duplicate them here... */
  49
  50 #ifdef EXIM_PERL
  51 uschar *opt_perl_startup       = NULL;
  52 BOOL    opt_perl_at_start      = FALSE;
  53 BOOL    opt_perl_started       = FALSE;
  54 BOOL    opt_perl_taintmode     = FALSE;
  55 #endif
  56
  57 #ifdef EXPAND_DLFUNC
  58 tree_node *dlobj_anchor        = NULL;
  59 #endif
  60
  61 #ifdef LOOKUP_IBASE
  62 uschar *ibase_servers          = NULL;
  63 #endif
  64
  65 #ifdef LOOKUP_LDAP
  66 uschar *eldap_ca_cert_dir      = NULL;
  67 uschar *eldap_ca_cert_file     = NULL;
  68 uschar *eldap_cert_file        = NULL;
  69 uschar *eldap_cert_key         = NULL;
  70 uschar *eldap_cipher_suite     = NULL;
  71 uschar *eldap_default_servers  = NULL;
  72 uschar *eldap_require_cert     = NULL;
  73 int     eldap_version          = -1;
  74 BOOL    eldap_start_tls        = FALSE;
  75 #endif
  76
  77 #ifdef LOOKUP_MYSQL
  78 uschar *mysql_servers          = NULL;
  79 #endif
  80
  81 #ifdef LOOKUP_ORACLE
  82 uschar *oracle_servers         = NULL;
  83 #endif
  84
  85 #ifdef LOOKUP_PGSQL
  86 uschar *pgsql_servers          = NULL;
  87 #endif
  88
  89 #ifdef LOOKUP_REDIS
  90 uschar *redis_servers          = NULL;
  91 #endif
  92
  93 #ifdef LOOKUP_SQLITE
  94 uschar *sqlite_dbfile          = NULL;
  95 int     sqlite_lock_timeout    = 5;
  96 #endif
  97
  98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  99 BOOL    move_frozen_messages   = FALSE;
 100 #endif
 101
 102 /* These variables are outside the #ifdef because it keeps the code less
 103 cluttered in several places (e.g. during logging) if we can always refer to
 104 them. Also, the tls_ variables are now always visible.  Note that these are
 105 only used for smtp connections, not for service-daemon access. */
 106
 107 tls_support tls_in = {
 108  .active =              {.sock = -1}
 109  /* all other elements zero */
 110 };
 111 tls_support tls_out = {
 112  .active =              {.sock = -1},
 113  /* all other elements zero */
 114 };
 115
 116 uschar *dsn_envid              = NULL;
 117 int     dsn_ret                = 0;
 118 const pcre2_code  *regex_DSN         = NULL;
 119 uschar *dsn_advertise_hosts    = NULL;
 120
 121 #ifndef DISABLE_TLS
 122 BOOL    gnutls_compat_mode     = FALSE;
 123 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 124 uschar *hosts_require_alpn     = NULL;
 125 uschar *openssl_options        = NULL;
 126 const pcre2_code *regex_STARTTLS     = NULL;
 127 uschar *tls_advertise_hosts    = US"*";
 128 uschar *tls_alpn               = US"smtp:esmtp";
 129 uschar *tls_certificate        = NULL;
 130 uschar *tls_crl                = NULL;
 131 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 132 that's the interop problem which has been observed: GnuTLS suggesting a higher
 133 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 134 int     tls_dh_max_bits        = 2236;
 135 uschar *tls_dhparam            = NULL;
 136 uschar *tls_eccurve            = US"auto";
 137 # ifndef DISABLE_OCSP
 138 uschar *tls_ocsp_file          = NULL;
 139 # endif
 140 uschar *tls_privatekey         = NULL;
 141 BOOL    tls_remember_esmtp     = FALSE;
 142 uschar *tls_require_ciphers    = NULL;
 143 # ifndef DISABLE_TLS_RESUME
 144 uschar *tls_resumption_hosts   = NULL;
 145 # endif
 146 uschar *tls_try_verify_hosts   = NULL;
 147 uschar *tls_verify_certificates= US"system";
 148 uschar *tls_verify_hosts       = NULL;
 149 int     tls_watch_fd           = -1;
 150 time_t  tls_watch_trigger_time = (time_t)0;
 151 #else   /*DISABLE_TLS*/
 152 uschar *tls_advertise_hosts    = NULL;
 153 #endif
 154
 155 #ifndef DISABLE_PRDR
 156 /* Per Recipient Data Response variables */
 157 BOOL    prdr_enable            = FALSE;
 158 BOOL    prdr_requested         = FALSE;
 159 const pcre2_code *regex_PRDR         = NULL;
 160 #endif
 161
 162 #ifdef SUPPORT_I18N
 163 const pcre2_code *regex_UTF8         = NULL;
 164 #endif
 165
 166 /* Input-reading functions for messages, so we can use special ones for
 167 incoming TCP/IP. The defaults use stdin. We never need these for any
 168 stand-alone tests. */
 169
 170 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 171 int     (*lwr_receive_getc)(unsigned)   = stdin_getc;
 172 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 173 int     (*lwr_receive_ungetc)(int)      = stdin_ungetc;
 174 BOOL    (*lwr_receive_hasc)(void)       = stdin_hasc;
 175
 176 int     (*receive_getc)(unsigned)       = stdin_getc;
 177 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 178 void    (*receive_get_cache)(unsigned)  = NULL;
 179 BOOL    (*receive_hasc)(void)           = stdin_hasc;
 180 int     (*receive_ungetc)(int)          = stdin_ungetc;
 181 int     (*receive_feof)(void)           = stdin_feof;
 182 int     (*receive_ferror)(void)         = stdin_ferror;
 183 #endif
 184
 185
 186 /* List of per-address expansion variables for clearing and saving/restoring
 187 when verifying one address while routing/verifying another. We have to have
 188 the size explicit, because it is referenced from more than one module. */
 189
 190 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 191   CUSS &deliver_address_data,
 192   CUSS &deliver_domain,
 193   CUSS &deliver_domain_data,
 194   CUSS &deliver_domain_orig,
 195   CUSS &deliver_domain_parent,
 196   CUSS &deliver_localpart,
 197   CUSS &deliver_localpart_data,
 198   CUSS &deliver_localpart_orig,
 199   CUSS &deliver_localpart_parent,
 200   CUSS &deliver_localpart_prefix,
 201   CUSS &deliver_localpart_suffix,
 202   CUSS (uschar **)(&deliver_recipients),
 203   CUSS &deliver_host,
 204   CUSS &deliver_home,
 205   CUSS &address_file,
 206   CUSS &address_pipe,
 207   CUSS &self_hostname,
 208   NULL };
 209
 210 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 211
 212 /******************************************************************************/
 213 /* General global variables.  Boolean flags are done as a group
 214 so that only one bit each is needed, packed, for all those we never
 215 need to take a pointer - and only a char for the rest.
 216 This means a struct, unfortunately since it clutters the sourcecode. */
 217
 218 struct global_flags f =
 219 {
 220         .acl_temp_details       = FALSE,
 221         .active_local_from_check = FALSE,
 222         .active_local_sender_retain = FALSE,
 223         .address_test_mode      = FALSE,
 224         .admin_user             = FALSE,
 225         .allow_auth_unadvertised= FALSE,
 226         .allow_unqualified_recipient = TRUE,    /* For local messages */
 227         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 228         .authentication_local   = FALSE,
 229
 230         .background_daemon      = TRUE,
 231         .bdat_readers_wanted    = FALSE,
 232
 233         .chunking_offered       = FALSE,
 234         .config_changed         = FALSE,
 235         .continue_more          = FALSE,
 236
 237         .daemon_listen          = FALSE,
 238         .daemon_scion           = FALSE,
 239         .debug_daemon           = FALSE,
 240         .deliver_firsttime      = FALSE,
 241         .deliver_force          = FALSE,
 242         .deliver_freeze         = FALSE,
 243         .deliver_force_thaw     = FALSE,
 244         .deliver_manual_thaw    = FALSE,
 245         .deliver_selectstring_regex = FALSE,
 246         .deliver_selectstring_sender_regex = FALSE,
 247         .disable_callout_flush  = FALSE,
 248         .disable_delay_flush    = FALSE,
 249         .disable_logging        = FALSE,
 250 #ifndef DISABLE_DKIM
 251         .dkim_disable_verify      = FALSE,
 252         .dkim_init_done           = FALSE,
 253 #endif
 254 #ifdef SUPPORT_DMARC
 255         .dmarc_has_been_checked  = FALSE,
 256         .dmarc_disable_verify    = FALSE,
 257         .dmarc_enable_forensic   = FALSE,
 258 #endif
 259         .dont_deliver           = FALSE,
 260         .dot_ends               = TRUE,
 261
 262         .enable_dollar_recipients = FALSE,
 263         .expand_string_forcedfail = FALSE,
 264
 265         .filter_running         = FALSE,
 266
 267         .header_rewritten       = FALSE,
 268         .helo_verified          = FALSE,
 269         .helo_verify_failed     = FALSE,
 270         .host_checking_callout  = FALSE,
 271         .host_find_failed_syntax= FALSE,
 272
 273         .inetd_wait_mode        = FALSE,
 274         .is_inetd               = FALSE,
 275
 276         .local_error_message    = FALSE,
 277         .log_testing_mode       = FALSE,
 278
 279 #ifdef WITH_CONTENT_SCAN
 280         .no_mbox_unspool        = FALSE,
 281 #endif
 282         .no_multiline_responses = FALSE,
 283         .notifier_socket_en     = TRUE,
 284
 285         .parse_allow_group      = FALSE,
 286         .parse_found_group      = FALSE,
 287         .pipelining_enable      = TRUE,
 288 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 289         .proxy_session_failed   = FALSE,
 290 #endif
 291
 292         .queue_2stage           = FALSE,
 293         .queue_only_policy      = FALSE,
 294         .queue_run_local        = FALSE,
 295         .queue_running          = FALSE,
 296         .queue_smtp             = FALSE,
 297
 298         .really_exim            = TRUE,
 299         .receive_call_bombout   = FALSE,
 300         .recipients_discarded   = FALSE,
 301         .running_in_test_harness = FALSE,
 302
 303         .search_find_defer      = FALSE,
 304         .sender_address_forced  = FALSE,
 305         .sender_host_notsocket  = FALSE,
 306         .sender_host_unknown    = FALSE,
 307         .sender_local           = FALSE,
 308         .sender_name_forced     = FALSE,
 309         .sender_set_untrusted   = FALSE,
 310         .smtp_authenticated     = FALSE,
 311 #ifndef DISABLE_PIPE_CONNECT
 312         .smtp_in_early_pipe_advertised = FALSE,
 313         .smtp_in_early_pipe_no_auth = FALSE,
 314         .smtp_in_early_pipe_used = FALSE,
 315 #endif
 316         .smtp_in_pipelining_advertised = FALSE,
 317         .smtp_in_pipelining_used = FALSE,
 318         .smtp_in_quit           = FALSE,
 319         .spool_file_wireformat  = FALSE,
 320         .submission_mode        = FALSE,
 321         .suppress_local_fixups  = FALSE,
 322         .suppress_local_fixups_default = FALSE,
 323         .synchronous_delivery   = FALSE,
 324         .system_filtering       = FALSE,
 325
 326         .taint_check_slow       = FALSE,
 327         .testsuite_delays       = TRUE,
 328         .tcp_fastopen_ok        = FALSE,
 329         .tcp_in_fastopen        = FALSE,
 330         .tcp_in_fastopen_data   = FALSE,
 331         .tcp_in_fastopen_logged = FALSE,
 332         .tcp_out_fastopen_logged= FALSE,
 333         .timestamps_utc         = FALSE,
 334         .transport_filter_timed_out = FALSE,
 335         .trusted_caller         = FALSE,
 336         .trusted_config         = TRUE,
 337 };
 338
 339 /******************************************************************************/
 340 /* These are the flags which are either variables or mainsection options,
 341 so an address is needed for access, or are exported to local_scan. */
 342
 343 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 344 BOOL    allow_domain_literals  = FALSE;
 345 BOOL    allow_mx_to_ip         = FALSE;
 346 BOOL    allow_utf8_domains     = FALSE;
 347 BOOL    authentication_failed  = FALSE;
 348
 349 BOOL    bounce_return_body     = TRUE;
 350 BOOL    bounce_return_message  = TRUE;
 351 BOOL    check_rfc2047_length   = TRUE;
 352 BOOL    commandline_checks_require_admin = FALSE;
 353
 354 #ifdef EXPERIMENTAL_DCC
 355 BOOL    dcc_direct_add_header  = FALSE;
 356 #endif
 357 BOOL    debug_store            = FALSE;
 358 BOOL    delivery_date_remove   = TRUE;
 359 BOOL    deliver_drop_privilege = FALSE;
 360 #ifdef ENABLE_DISABLE_FSYNC
 361 BOOL    disable_fsync          = FALSE;
 362 #endif
 363 BOOL    disable_ipv6           = FALSE;
 364 BOOL    dns_csa_use_reverse    = TRUE;
 365 BOOL    drop_cr                = FALSE;         /* No longer used */
 366
 367 BOOL    envelope_to_remove     = TRUE;
 368 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 369 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 370 BOOL    extract_addresses_remove_arguments = TRUE;
 371
 372 BOOL    host_checking          = FALSE;
 373 BOOL    host_lookup_deferred   = FALSE;
 374 BOOL    host_lookup_failed     = FALSE;
 375 BOOL    ignore_fromline_local  = FALSE;
 376
 377 BOOL    local_from_check       = TRUE;
 378 BOOL    local_sender_retain    = FALSE;
 379 BOOL    log_timezone           = FALSE;
 380 BOOL    message_body_newlines  = FALSE;
 381 BOOL    message_logs           = TRUE;
 382 #ifdef SUPPORT_I18N
 383 BOOL    message_smtputf8       = FALSE;
 384 #endif
 385 BOOL    mua_wrapper            = FALSE;
 386
 387 BOOL    preserve_message_logs  = FALSE;
 388 BOOL    print_topbitchars      = FALSE;
 389 BOOL    prod_requires_admin    = TRUE;
 390 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMENTAL_XCLIENT)
 391 BOOL    proxy_session          = FALSE;
 392 #endif
 393
 394 #ifndef DISABLE_QUEUE_RAMP
 395 BOOL    queue_fast_ramp         = TRUE;
 396 #endif
 397 BOOL    queue_list_requires_admin = TRUE;
 398 BOOL    queue_only             = FALSE;
 399 BOOL    queue_only_load_latch  = TRUE;
 400 BOOL    queue_only_override    = TRUE;
 401 BOOL    queue_run_in_order     = FALSE;
 402 BOOL    recipients_max_reject  = FALSE;
 403 BOOL    return_path_remove     = TRUE;
 404
 405 BOOL    smtp_batched_input     = FALSE;
 406 BOOL    sender_helo_dnssec     = FALSE;
 407 BOOL    sender_host_dnssec     = FALSE;
 408 BOOL    smtp_accept_keepalive  = TRUE;
 409 BOOL    smtp_check_spool_space = TRUE;
 410 BOOL    smtp_enforce_sync      = TRUE;
 411 BOOL    smtp_etrn_serialize    = TRUE;
 412 BOOL    smtp_input             = FALSE;
 413 BOOL    smtp_return_error_details = FALSE;
 414 BOOL    split_spool_directory  = FALSE;
 415 BOOL    spool_wireformat       = FALSE;
 416 BOOL    strict_acl_vars        = FALSE;
 417 BOOL    strip_excess_angle_brackets = FALSE;
 418 BOOL    strip_trailing_dot     = FALSE;
 419 BOOL    syslog_duplication     = TRUE;
 420 BOOL    syslog_pid             = TRUE;
 421 BOOL    syslog_timestamp       = TRUE;
 422 BOOL    system_filter_gid_set  = FALSE;
 423 BOOL    system_filter_uid_set  = FALSE;
 424
 425 BOOL    tcp_nodelay            = TRUE;
 426 BOOL    write_rejectlog        = TRUE;
 427
 428 /******************************************************************************/
 429
 430 header_line *acl_added_headers = NULL;
 431 tree_node *acl_anchor          = NULL;
 432 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 433                                   NULL, NULL, NULL, NULL};
 434 int     acl_narg               = 0;
 435
 436 int     acl_level              = 0;
 437
 438 uschar *acl_not_smtp           = NULL;
 439 #ifdef WITH_CONTENT_SCAN
 440 uschar *acl_not_smtp_mime      = NULL;
 441 #endif
 442 uschar *acl_not_smtp_start     = NULL;
 443 uschar *acl_removed_headers    = NULL;
 444 uschar *acl_smtp_auth          = NULL;
 445 uschar *acl_smtp_connect       = NULL;
 446 uschar *acl_smtp_data          = NULL;
 447 #ifndef DISABLE_PRDR
 448 uschar *acl_smtp_data_prdr     = US"accept";
 449 #endif
 450 #ifndef DISABLE_DKIM
 451 uschar *acl_smtp_dkim          = NULL;
 452 #endif
 453 uschar *acl_smtp_etrn          = NULL;
 454 uschar *acl_smtp_expn          = NULL;
 455 uschar *acl_smtp_helo          = NULL;
 456 uschar *acl_smtp_mail          = NULL;
 457 uschar *acl_smtp_mailauth      = NULL;
 458 #ifdef WITH_CONTENT_SCAN
 459 uschar *acl_smtp_mime          = NULL;
 460 #endif
 461 uschar *acl_smtp_notquit       = NULL;
 462 uschar *acl_smtp_predata       = NULL;
 463 uschar *acl_smtp_quit          = NULL;
 464 uschar *acl_smtp_rcpt          = NULL;
 465 uschar *acl_smtp_starttls      = NULL;
 466 uschar *acl_smtp_vrfy          = NULL;
 467 #ifndef DISABLE_WELLKNOWN
 468 uschar *acl_smtp_wellknown     = NULL;
 469 #endif
 470
 471 tree_node *acl_var_c           = NULL;
 472 tree_node *acl_var_m           = NULL;
 473 uschar *acl_verify_message     = NULL;
 474 string_item *acl_warn_logged   = NULL;
 475 int acl_where                  = ACL_WHERE_UNKNOWN;
 476
 477 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 478 error codes (only those used) */
 479
 480 uschar *acl_wherenames[]       = { [ACL_WHERE_RCPT] =           US"RCPT",
 481                                    [ACL_WHERE_MAIL] =           US"MAIL",
 482                                    [ACL_WHERE_PREDATA] =        US"PREDATA",
 483                                    [ACL_WHERE_MIME] =           US"MIME",
 484                                    [ACL_WHERE_DKIM] =           US"DKIM",
 485                                    [ACL_WHERE_DATA] =           US"DATA",
 486 #ifndef DISABLE_PRDR
 487                                    [ACL_WHERE_PRDR] =           US"PRDR",
 488 #endif
 489                                    [ACL_WHERE_NOTSMTP] =        US"non-SMTP",
 490                                    [ACL_WHERE_AUTH] =           US"AUTH",
 491                                    [ACL_WHERE_CONNECT] =        US"connection",
 492                                    [ACL_WHERE_ETRN] =           US"ETRN",
 493                                    [ACL_WHERE_EXPN] =           US"EXPN",
 494                                    [ACL_WHERE_HELO] =           US"EHLO or HELO",
 495                                    [ACL_WHERE_MAILAUTH] =       US"MAILAUTH",
 496                                    [ACL_WHERE_NOTSMTP_START] =  US"non-SMTP-start",
 497                                    [ACL_WHERE_NOTQUIT] =        US"NOTQUIT",
 498                                    [ACL_WHERE_QUIT] =           US"QUIT",
 499                                    [ACL_WHERE_STARTTLS] =       US"STARTTLS",
 500                                    [ACL_WHERE_VRFY] =           US"VRFY",
 501 #ifndef DISABLE_WELLKNOWN
 502                                    [ACL_WHERE_WELLKNOWN] =      US"WELLKNOWN",
 503 #endif
 504                                    [ACL_WHERE_DELIVERY] =       US"delivery",
 505                                    [ACL_WHERE_UNKNOWN] =        US"unknown"
 506                                  };
 507
 508 uschar *acl_wherecodes[]       = { [ACL_WHERE_RCPT] =   US"550",
 509                                    [ACL_WHERE_MAIL] =   US"550",
 510                                    [ACL_WHERE_PREDATA] = US"550",
 511                                    [ACL_WHERE_MIME] =   US"550",
 512                                    [ACL_WHERE_DKIM] =   US"550",
 513                                    [ACL_WHERE_DATA] =   US"550",
 514 #ifndef DISABLE_PRDR
 515                                    [ACL_WHERE_PRDR] =   US"550",
 516 #endif
 517                                    [ACL_WHERE_AUTH] =   US"503",
 518                                    [ACL_WHERE_CONNECT] = US"550",
 519                                    [ACL_WHERE_ETRN] =   US"458",
 520                                    [ACL_WHERE_EXPN] =   US"550",
 521                                    [ACL_WHERE_HELO] =   US"550",
 522                                    [ACL_WHERE_STARTTLS] = US"550",
 523 #ifndef DISABLE_WELLKNOWN
 524                                    [ACL_WHERE_WELLKNOWN] =US"550",
 525 #endif
 526                                    [ACL_WHERE_VRFY] =   US"252",
 527                                  };
 528
 529 uschar *add_environment        = NULL;
 530 address_item  *addr_duplicate  = NULL;
 531
 532 address_item address_defaults = {
 533   .next =               NULL,
 534   .parent =             NULL,
 535   .first =              NULL,
 536   .dupof =              NULL,
 537   .start_router =       NULL,
 538   .router =             NULL,
 539   .transport =          NULL,
 540   .host_list =          NULL,
 541   .host_used =          NULL,
 542   .fallback_hosts =     NULL,
 543   .reply =              NULL,
 544   .retries =            NULL,
 545   .address =            NULL,
 546   .unique =             NULL,
 547   .cc_local_part =      NULL,
 548   .lc_local_part =      NULL,
 549   .local_part =         NULL,
 550   .prefix =             NULL,
 551   .prefix_v =           NULL,
 552   .suffix =             NULL,
 553   .suffix_v =           NULL,
 554   .domain =             NULL,
 555   .address_retry_key =  NULL,
 556   .domain_retry_key =   NULL,
 557   .current_dir =        NULL,
 558   .home_dir =           NULL,
 559   .message =            NULL,
 560   .user_message =       NULL,
 561   .onetime_parent =     NULL,
 562   .pipe_expandn =       NULL,
 563   .return_filename =    NULL,
 564   .self_hostname =      NULL,
 565   .shadow_message =     NULL,
 566 #ifndef DISABLE_TLS
 567   .cipher =             NULL,
 568   .ourcert =            NULL,
 569   .peercert =           NULL,
 570   .peerdn =             NULL,
 571   .ocsp =               OCSP_NOT_REQ,
 572 #endif
 573 #ifdef EXPERIMENTAL_DSN_INFO
 574   .smtp_greeting =      NULL,
 575   .helo_response =      NULL,
 576 #endif
 577   .authenticator =      NULL,
 578   .auth_id =            NULL,
 579   .auth_sndr =          NULL,
 580   .dsn_orcpt =          NULL,
 581   .dsn_flags =          0,
 582   .dsn_aware =          0,
 583   .uid =                (uid_t)(-1),
 584   .gid =                (gid_t)(-1),
 585   .flags =              { 0 },
 586   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 587   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 588   .mode =               -1,
 589   .more_errno =         0,
 590   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 591   .basic_errno =        ERRNO_UNKNOWNERROR,
 592   .child_count =        0,
 593   .return_file =        -1,
 594   .special_action =     SPECIAL_NONE,
 595   .transport_return =   DEFER,
 596   .prop = {                                     /* fields that are propagated to children */
 597     .address_data =     NULL,
 598     .domain_data =      NULL,
 599     .localpart_data =   NULL,
 600     .errors_address =   NULL,
 601     .extra_headers =    NULL,
 602     .remove_headers =   NULL,
 603     .variables =        NULL,
 604     .ignore_error =     FALSE,
 605 #ifdef SUPPORT_I18N
 606     .utf8_msg =         FALSE,
 607     .utf8_downcvt =     FALSE,
 608     .utf8_downcvt_maybe = FALSE
 609 #endif
 610   }
 611 };
 612
 613 const uschar *address_file           = NULL;
 614 const uschar *address_pipe           = NULL;
 615 tree_node *addresslist_anchor  = NULL;
 616 int     addresslist_count      = 0;
 617 gid_t  *admin_groups           = NULL;
 618
 619 uschar *authenticated_fail_id  = NULL;
 620 uschar *authenticated_id       = NULL;
 621 uschar *authenticated_sender   = NULL;
 622 auth_instance  *auths          = NULL;
 623 uschar *auth_advertise_hosts   = US"*";
 624 auth_instance auth_defaults    = {
 625     .drinst = {
 626       .next =           NULL,
 627       .name =           NULL,
 628       .info =           NULL,
 629       .options_block =  NULL,
 630       .driver_name =    NULL,
 631     },
 632     .advertise_condition = NULL,
 633     .client_condition = NULL,
 634     .public_name =      NULL,
 635     .set_id =           NULL,
 636     .set_client_id =    NULL,
 637     .mail_auth_condition = NULL,
 638     .server_debug_string = NULL,
 639     .server_condition = NULL,
 640     .client =           FALSE,
 641     .server =           FALSE,
 642     .advertised =       FALSE
 643 };
 644
 645 uschar *auth_defer_msg         = US"reason not recorded";
 646 uschar *auth_defer_user_msg    = US"";
 647 const uschar *auth_vars[AUTH_VARS];
 648 uschar *authenticator_name     = NULL;
 649 int     auto_thaw              = 0;
 650 #ifdef WITH_CONTENT_SCAN
 651 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 652 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 653 #endif
 654
 655 #if BASE_62 == 62
 656 uschar *base62_chars=
 657     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 658 #else
 659 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 660 #endif
 661
 662 uschar *bi_command             = NULL;
 663 uschar *big_buffer             = NULL;
 664 int     big_buffer_size        = BIG_BUFFER_SIZE;
 665 #ifdef EXPERIMENTAL_BRIGHTMAIL
 666 uschar *bmi_alt_location       = NULL;
 667 uschar *bmi_base64_tracker_verdict = NULL;
 668 uschar *bmi_base64_verdict     = NULL;
 669 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 670 int     bmi_deliver            = 1;
 671 int     bmi_run                = 0;
 672 uschar *bmi_verdicts           = NULL;
 673 #endif
 674 int     bsmtp_transaction_linecount = 0;
 675 int     body_8bitmime          = 0;
 676 int     body_linecount         = 0;
 677 int     body_zerocount         = 0;
 678 uschar *bounce_message_file    = NULL;
 679 uschar *bounce_message_text    = NULL;
 680 const uschar *bounce_recipient = NULL;
 681 int     bounce_return_linesize_limit = 998;
 682 int     bounce_return_size_limit = 100*1024;
 683 uschar *bounce_sender_authentication = NULL;
 684
 685 uschar *callout_address        = NULL;
 686 int     callout_cache_domain_positive_expire = 7*24*60*60;
 687 int     callout_cache_domain_negative_expire = 3*60*60;
 688 int     callout_cache_positive_expire = 24*60*60;
 689 int     callout_cache_negative_expire = 2*60*60;
 690 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 691 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 692 int     check_log_inodes       = 100;
 693 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 694 int     check_spool_inodes     = 100;
 695 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 696
 697 uschar *chunking_advertise_hosts = US"*";
 698 unsigned chunking_datasize     = 0;
 699 unsigned chunking_data_left    = 0;
 700 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 701 const pcre2_code *regex_CHUNKING     = NULL;
 702
 703 #ifndef DISABLE_ESMTP_LIMITS
 704 const pcre2_code *regex_LIMITS        = NULL;
 705 #endif
 706
 707 uschar *client_authenticator   = NULL;
 708 uschar *client_authenticated_id = NULL;
 709 uschar *client_authenticated_sender = NULL;
 710 #ifndef DISABLE_CLIENT_CMD_LOG
 711 gstring *client_cmd_log        = NULL;
 712 #endif
 713 int     clmacro_count          = 0;
 714 uschar *clmacros[MAX_CLMACROS];
 715 FILE   *config_file            = NULL;
 716 const uschar *config_filename  = NULL;
 717 unsigned config_lineno         = 0;
 718 #ifdef CONFIGURE_GROUP
 719 gid_t   config_gid             = CONFIGURE_GROUP;
 720 #else
 721 gid_t   config_gid             = 0;
 722 #endif
 723 const uschar * config_main_filelist = US CONFIGURE_FILE
 724                          "\0<-----------Space to patch configure_filename->";
 725 uschar *config_main_filename   = NULL;
 726 uschar *config_main_directory  = NULL;
 727
 728 #ifdef CONFIGURE_OWNER
 729 uid_t   config_uid             = CONFIGURE_OWNER;
 730 #else
 731 uid_t   config_uid             = 0;
 732 #endif
 733
 734 const uschar *connection_id    = NULL;
 735 int     connection_max_messages= -1;
 736 unsigned continue_flags        = 0;
 737 #ifndef DISABLE_ESMTP_LIMITS
 738 unsigned continue_limit_mail   = 0;
 739 unsigned continue_limit_rcpt   = 0;
 740 unsigned continue_limit_rcptdom= 0;
 741 int     continue_fd            = -1;
 742 uschar *continue_proxy_cipher  = NULL;
 743 BOOL    continue_proxy_dane    = FALSE;
 744 uschar *continue_proxy_sni     = NULL;
 745 const uschar *continue_hostname      = NULL;
 746 const uschar *continue_host_address  = NULL;
 747 uschar  continue_next_id[MESSAGE_ID_LENGTH +1] = {[0]='\0'};
 748 int     continue_sequence      = 1;
 749 const uschar *continue_transport = NULL;
 750 #ifndef COMPILE_UTILITY
 751 open_db *continue_retry_db     = NULL;
 752 open_db *continue_wait_db      = NULL;
 753 #endif
 754 #endif
 755
 756 uschar *csa_status             = NULL;
 757 cut_t   cutthrough = {
 758   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 759   .delivery =           FALSE,                          /* when to attempt */
 760   .defer_pass =         FALSE,                          /* on defer: spool locally */
 761   .is_tls =             FALSE,                          /* not a TLS conn yet */
 762   .cctx =               {.sock = -1},                   /* open connection */
 763   .nrcpt =              0,                              /* number of addresses */
 764 };
 765
 766 int     daemon_notifier_fd     = -1;
 767 uschar *daemon_smtp_port       = US"smtp";
 768 int     daemon_startup_retries = 9;
 769 int     daemon_startup_sleep   = 30;
 770
 771 #ifdef EXPERIMENTAL_DCC
 772 uschar *dcc_header             = NULL;
 773 uschar *dcc_result             = NULL;
 774 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 775 uschar *dccifd_options         = US"header";
 776 #endif
 777
 778 int     debug_fd               = -1;
 779 FILE   *debug_file             = NULL;
 780 int     debug_notall[]         = {
 781   Di_memory,
 782   Di_noutf8,
 783   -1
 784 };
 785 bit_table debug_options[]      = { /* must be in alphabetical order and use
 786                                  only the enum values from macro.h */
 787   BIT_TABLE(D, acl),
 788   BIT_TABLE(D, all),
 789   BIT_TABLE(D, auth),
 790   BIT_TABLE(D, deliver),
 791   BIT_TABLE(D, dns),
 792   BIT_TABLE(D, dnsbl),
 793   BIT_TABLE(D, exec),
 794   BIT_TABLE(D, expand),
 795   BIT_TABLE(D, filter),
 796   BIT_TABLE(D, hints_lookup),
 797   BIT_TABLE(D, host_lookup),
 798   BIT_TABLE(D, ident),
 799   BIT_TABLE(D, interface),
 800   BIT_TABLE(D, lists),
 801   BIT_TABLE(D, load),
 802   BIT_TABLE(D, local_scan),
 803   BIT_TABLE(D, lookup),
 804   BIT_TABLE(D, memory),
 805   BIT_TABLE(D, noutf8),
 806   BIT_TABLE(D, pid),
 807   BIT_TABLE(D, process_info),
 808   BIT_TABLE(D, queue_run),
 809   BIT_TABLE(D, receive),
 810   BIT_TABLE(D, resolver),
 811   BIT_TABLE(D, retry),
 812   BIT_TABLE(D, rewrite),
 813   BIT_TABLE(D, route),
 814   BIT_TABLE(D, timestamp),
 815   BIT_TABLE(D, tls),
 816   BIT_TABLE(D, transport),
 817   BIT_TABLE(D, uid),
 818   BIT_TABLE(D, verify),
 819 };
 820 int      debug_options_count    = nelem(debug_options);
 821 uschar   debuglog_name[LOG_NAME_SIZE] = {0};
 822 unsigned debug_pretrigger_bsize = 0;
 823 uschar * debug_pretrigger_buf   = NULL;
 824 unsigned int debug_selector     = 0;
 825
 826 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 827 uschar *delay_warning_condition=
 828   US"${if or {"
 829             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 830             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 831             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 832             "} {no}{yes}}";
 833 uschar *deliver_address_data   = NULL;
 834 int     deliver_datafile       = -1;
 835 const uschar *deliver_domain   = NULL;
 836 uschar *deliver_domain_data    = NULL;
 837 const uschar *deliver_domain_orig = NULL;
 838 const uschar *deliver_domain_parent = NULL;
 839 time_t  deliver_frozen_at      = 0;
 840 uschar *deliver_home           = NULL;
 841 const uschar *deliver_host     = NULL;
 842 const uschar *deliver_host_address = NULL;
 843 int     deliver_host_port      = 0;
 844 uschar *deliver_in_buffer      = NULL;
 845 ino_t   deliver_inode          = 0;
 846 const uschar *deliver_localpart= NULL;
 847 uschar *deliver_localpart_data = NULL;
 848 const uschar *deliver_localpart_orig = NULL;
 849 const uschar *deliver_localpart_parent = NULL;
 850 const uschar *deliver_localpart_prefix = NULL;
 851 const uschar *deliver_localpart_prefix_v = NULL;
 852 const uschar *deliver_localpart_suffix = NULL;
 853 const uschar *deliver_localpart_suffix_v = NULL;
 854 uschar *deliver_out_buffer     = NULL;
 855 int     deliver_queue_load_max = -1;
 856 address_item  *deliver_recipients = NULL;
 857 uschar *deliver_selectstring   = NULL;
 858 uschar *deliver_selectstring_sender = NULL;
 859
 860 uschar *dns_again_means_nonexist = NULL;
 861 int     dns_csa_search_limit   = 5;
 862 int     dns_cname_loops        = 1;
 863 #ifdef SUPPORT_DANE
 864 int     dns_dane_ok            = -1;
 865 #endif
 866 uschar *dns_ipv4_lookup        = NULL;
 867 int     dns_retrans            = 0;
 868 int     dns_retry              = 0;
 869 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 870 uschar *dns_trust_aa           = NULL;
 871 int     dns_use_edns0          = -1; /* <0 = not coerced */
 872 uschar *dnslist_domain         = NULL;
 873 uschar *dnslist_matched        = NULL;
 874 uschar *dnslist_text           = NULL;
 875 uschar *dnslist_value          = NULL;
 876 tree_node *domainlist_anchor   = NULL;
 877 int     domainlist_count       = 0;
 878 const uschar *driver_srcfile   = NULL;
 879 int     driver_srcline         = 0;
 880 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 881 unsigned int dtrigger_selector = 0;
 882
 883 int     errno_quota            = ERRNO_QUOTA;
 884 uschar *errors_copy            = NULL;
 885 int     error_handling         = ERRORS_SENDER;
 886 uschar *errors_reply_to        = NULL;
 887 int     errors_sender_rc       = EXIT_FAILURE;
 888 #ifndef DISABLE_EVENT
 889 uschar *event_action           = NULL;  /* expansion for delivery events */
 890 const uschar *event_data       = NULL;  /* auxiliary data variable for event */
 891 int     event_defer_errno      = 0;
 892 const uschar *event_name       = NULL;  /* event name variable */
 893 #endif
 894
 895
 896 gid_t   exim_gid               = EXIM_GID;
 897 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 898                         "\0<---------------Space to patch exim_path->";
 899 uid_t   exim_uid               = EXIM_UID;
 900 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 901 int     expand_forbid          = 0;
 902 int     expand_nlength[EXPAND_MAXN+1];
 903 int     expand_nmax            = -1;
 904 const uschar *expand_nstring[EXPAND_MAXN+1];
 905 uschar *expand_string_message;
 906 uschar *extra_local_interfaces = NULL;
 907
 908 int     fake_response          = OK;
 909 uschar *fake_response_text     = US"Your message has been rejected but is "
 910                                    "being kept for evaluation.\nIf it was a "
 911                                    "legitimate message, it may still be "
 912                                    "delivered to the target recipient(s).";
 913 int     filter_n[FILTER_VARIABLE_COUNT];
 914 int     filter_sn[FILTER_VARIABLE_COUNT];
 915 int     filter_test            = FTEST_NONE;
 916 const uschar * filter_test_sfile = NULL;
 917 const uschar * filter_test_ufile = NULL;
 918 uschar *filter_thisaddress     = NULL;
 919 int     finduser_retries       = 0;
 920 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 921 uschar *freeze_tell            = NULL;
 922 uschar *freeze_tell_config     = NULL;
 923 uschar *fudged_queue_times     = US"";
 924
 925 uschar *gecos_name             = NULL;
 926 uschar *gecos_pattern          = NULL;
 927 rewrite_rule  *global_rewrite_rules = NULL;
 928
 929 volatile sig_atomic_t had_command_timeout = 0;
 930 volatile sig_atomic_t had_command_sigterm = 0;
 931 volatile sig_atomic_t had_data_timeout    = 0;
 932 volatile sig_atomic_t had_data_sigint     = 0;
 933 const uschar *headers_charset  = US HEADERS_CHARSET;
 934 int     header_insert_maxlen   = 64 * 1024;
 935 header_line  *header_last      = NULL;
 936 header_line  *header_list      = NULL;
 937 int     header_maxsize         = HEADER_MAXSIZE;
 938 int     header_line_maxsize    = 0;
 939
 940 header_name header_names[] = {
 941   /* name               len     allow_resent    htype */
 942   { US"bcc",            3,      TRUE,           htype_bcc },
 943   { US"cc",             2,      TRUE,           htype_cc },
 944   { US"date",           4,      TRUE,           htype_date },
 945   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 946   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 947   { US"from",           4,      TRUE,           htype_from },
 948   { US"message-id",    10,      TRUE,           htype_id },
 949   { US"received",       8,      FALSE,          htype_received },
 950   { US"reply-to",       8,      FALSE,          htype_reply_to },
 951   { US"return-path",   11,      FALSE,          htype_return_path },
 952   { US"sender",         6,      TRUE,           htype_sender },
 953   { US"subject",        7,      FALSE,          htype_subject },
 954   { US"to",             2,      TRUE,           htype_to }
 955 };
 956
 957 int header_names_size          = nelem(header_names);
 958
 959 uschar *helo_accept_junk_hosts = NULL;
 960 uschar *helo_allow_chars       = US"";
 961 uschar *helo_lookup_domains    = US"@ : @[]";
 962 uschar *helo_try_verify_hosts  = NULL;
 963 uschar *helo_verify_hosts      = NULL;
 964 const uschar *hex_digits       = CUS"0123456789abcdef";
 965 uschar *hold_domains           = NULL;
 966 uschar *host_data              = NULL;
 967 uschar *host_lookup            = NULL;
 968 uschar *host_lookup_order      = US"bydns:byaddr";
 969 uschar *host_lookup_msg        = US"";
 970 int     host_number            = 0;
 971 uschar *host_number_string     = NULL;
 972 uschar *host_reject_connection = NULL;
 973 uschar *hosts_connection_nolog = NULL;
 974 #ifdef SUPPORT_PROXY
 975 uschar *hosts_proxy            = NULL;
 976 #endif
 977 uschar *hosts_treat_as_local   = NULL;
 978 uschar *hosts_require_helo     = US"*";
 979 #ifdef EXPERIMENTAL_XCLIENT
 980 uschar *hosts_xclient          = NULL;
 981 #endif
 982 tree_node *hostlist_anchor     = NULL;
 983 int     hostlist_count         = 0;
 984
 985
 986 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 987 uschar *ignore_fromline_hosts  = NULL;
 988 int     inetd_wait_timeout     = -1;
 989 uschar *initial_cwd            = NULL;
 990 uschar *interface_address      = NULL;
 991 int     interface_port         = -1;
 992 uschar *iterate_item           = NULL;
 993
 994 int     journal_fd             = -1;
 995
 996 uschar *keep_environment       = NULL;
 997
 998 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 999
1000 uschar *eldap_dn               = NULL;
1001 const uschar *letter_digit_hyphen_dot =
1002     US"abcdefghijklmnopqrstuvwxyz"
1003       ".-0123456789"
1004       "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
1005 #ifndef DISABLE_ESMTP_LIMITS
1006 uschar *limits_advertise_hosts = US"*";
1007 #endif
1008 int     load_average           = -2;
1009 uschar *local_from_prefix      = NULL;
1010 uschar *local_from_suffix      = NULL;
1011
1012 #if HAVE_IPV6
1013 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
1014 #else
1015 uschar *local_interfaces       = US"0.0.0.0";
1016 #endif
1017
1018 #ifdef HAVE_LOCAL_SCAN
1019 uschar *local_scan_data        = NULL;
1020 int     local_scan_timeout     = 5*60;
1021 #endif
1022 gid_t   local_user_gid         = (gid_t)(-1);
1023 uid_t   local_user_uid         = (uid_t)(-1);
1024
1025 tree_node *localpartlist_anchor= NULL;
1026 int     localpartlist_count    = 0;
1027 uschar *log_buffer             = NULL;
1028
1029 int     log_default[]          = { /* for initializing log_selector */
1030   Li_acl_warn_skipped,
1031   Li_connection_reject,
1032   Li_delay_delivery,
1033   Li_dkim,
1034   Li_dnslist_defer,
1035   Li_etrn,
1036   Li_host_lookup_failed,
1037   Li_lost_incoming_connection,
1038   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1039   Li_msg_id,
1040   Li_queue_run,
1041   Li_queue_time_exclusive,
1042   Li_rejected_header,
1043   Li_retry_defer,
1044   Li_sender_verify_fail,
1045   Li_size_reject,
1046   Li_skip_delivery,
1047   Li_smtp_confirmation,
1048   Li_tls_certificate_verified,
1049   Li_tls_cipher,
1050   -1
1051 };
1052
1053 uschar *log_file_path          = US LOG_FILE_PATH
1054                            "\0<--------------Space to patch log_file_path->";
1055
1056 int     log_notall[]           = {
1057   -1
1058 };
1059 bit_table log_options[]        = { /* must be in alphabetical order,
1060                                 with definitions from enum logbit. */
1061   BIT_TABLE(L, 8bitmime),
1062   BIT_TABLE(L, acl_warn_skipped),
1063   BIT_TABLE(L, address_rewrite),
1064   BIT_TABLE(L, all),
1065   BIT_TABLE(L, all_parents),
1066   BIT_TABLE(L, arguments),
1067   BIT_TABLE(L, connection_id),
1068   BIT_TABLE(L, connection_reject),
1069   BIT_TABLE(L, delay_delivery),
1070   BIT_TABLE(L, deliver_time),
1071   BIT_TABLE(L, delivery_size),
1072 #ifndef DISABLE_DKIM
1073   BIT_TABLE(L, dkim),
1074   BIT_TABLE(L, dkim_verbose),
1075 #endif
1076   BIT_TABLE(L, dnslist_defer),
1077   BIT_TABLE(L, dnssec),
1078   BIT_TABLE(L, etrn),
1079   BIT_TABLE(L, host_lookup_failed),
1080   BIT_TABLE(L, ident_timeout),
1081   BIT_TABLE(L, incoming_interface),
1082   BIT_TABLE(L, incoming_port),
1083   BIT_TABLE(L, lost_incoming_connection),
1084   BIT_TABLE(L, millisec),
1085   BIT_TABLE(L, msg_id),
1086   BIT_TABLE(L, msg_id_created),
1087   BIT_TABLE(L, outgoing_interface),
1088   BIT_TABLE(L, outgoing_port),
1089   BIT_TABLE(L, pid),
1090   BIT_TABLE(L, pipelining),
1091   BIT_TABLE(L, protocol_detail),
1092 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1093   BIT_TABLE(L, proxy),
1094 #endif
1095   BIT_TABLE(L, queue_run),
1096   BIT_TABLE(L, queue_time),
1097   BIT_TABLE(L, queue_time_exclusive),
1098   BIT_TABLE(L, queue_time_overall),
1099   BIT_TABLE(L, receive_time),
1100   BIT_TABLE(L, received_recipients),
1101   BIT_TABLE(L, received_sender),
1102   BIT_TABLE(L, rejected_header),
1103   { US"rejected_headers", Li_rejected_header },
1104   BIT_TABLE(L, retry_defer),
1105   BIT_TABLE(L, return_path_on_delivery),
1106   BIT_TABLE(L, sender_on_delivery),
1107   BIT_TABLE(L, sender_verify_fail),
1108   BIT_TABLE(L, size_reject),
1109   BIT_TABLE(L, skip_delivery),
1110   BIT_TABLE(L, smtp_confirmation),
1111   BIT_TABLE(L, smtp_connection),
1112   BIT_TABLE(L, smtp_incomplete_transaction),
1113   BIT_TABLE(L, smtp_mailauth),
1114   BIT_TABLE(L, smtp_no_mail),
1115   BIT_TABLE(L, smtp_protocol_error),
1116   BIT_TABLE(L, smtp_syntax_error),
1117   BIT_TABLE(L, subject),
1118   BIT_TABLE(L, tls_certificate_verified),
1119   BIT_TABLE(L, tls_cipher),
1120   BIT_TABLE(L, tls_peerdn),
1121   BIT_TABLE(L, tls_resumption),
1122   BIT_TABLE(L, tls_sni),
1123   BIT_TABLE(L, unknown_in_list),
1124 };
1125 int     log_options_count      = nelem(log_options);
1126
1127 int     log_reject_target      = 0;
1128 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1129 uschar *log_selector_string    = NULL;
1130 FILE   *log_stderr             = NULL;
1131 uschar *login_sender_address   = NULL;
1132 uschar *lookup_dnssec_authenticated = NULL;
1133 int     lookup_open_max        = 25;
1134 uschar *lookup_value           = NULL;
1135
1136 macro_item *macros_user        = NULL;
1137 uschar *mailstore_basename     = NULL;
1138 #ifdef WITH_CONTENT_SCAN
1139 uschar *malware_name           = NULL;  /* Virus Name */
1140 #endif
1141 int     max_received_linelength= 0;
1142 int     max_username_length    = 0;
1143 int     message_age            = 0;
1144 uschar *message_body           = NULL;
1145 uschar *message_body_end       = NULL;
1146 int     message_body_size      = 0;
1147 int     message_body_visible   = 500;
1148 int     message_ended          = END_NOTSTARTED;
1149 uschar *message_headers        = NULL;
1150 uschar *message_id;
1151 uschar *message_id_domain      = NULL;
1152 uschar *message_id_text        = NULL;
1153 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1154 uschar *message_id_external;
1155 int     message_linecount      = 0;
1156 int     message_size           = 0;
1157 uschar *message_size_limit     = US"50M";
1158 #ifdef SUPPORT_I18N
1159 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1160 #endif
1161 uschar  message_subdir[2]      = { 0, 0 };
1162 const uschar *message_reference= NULL;
1163
1164 /* MIME ACL expandables */
1165 #ifdef WITH_CONTENT_SCAN
1166 int     mime_anomaly_level     = 0;
1167 const uschar *mime_anomaly_text      = NULL;
1168 uschar *mime_boundary          = NULL;
1169 uschar *mime_charset           = NULL;
1170 uschar *mime_content_description = NULL;
1171 uschar *mime_content_disposition = NULL;
1172 uschar *mime_content_id        = NULL;
1173 unsigned int mime_content_size = 0;
1174 uschar *mime_content_transfer_encoding = NULL;
1175 uschar *mime_content_type      = NULL;
1176 uschar *mime_decoded_filename  = NULL;
1177 uschar *mime_filename          = NULL;
1178 int     mime_is_multipart      = 0;
1179 int     mime_is_coverletter    = 0;
1180 int     mime_is_rfc822         = 0;
1181 int     mime_part_count        = -1;
1182 #endif
1183
1184 uid_t  *never_users            = NULL;
1185 uschar *notifier_socket        = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1186
1187 const int on                   = 1;     /* for setsockopt */
1188 const int off                  = 0;
1189
1190 uid_t   original_euid;
1191 gid_t   originator_gid;
1192 uschar *originator_login       = NULL;
1193 uschar *originator_name        = NULL;
1194 uid_t   originator_uid;
1195 uschar *override_local_interfaces = NULL;
1196 const uschar *override_pid_file_path = NULL;
1197
1198 BOOL    panic_coredump         = FALSE;
1199 pcre2_general_context * pcre_gen_ctx = NULL;
1200 pcre2_compile_context * pcre_gen_cmp_ctx = NULL;
1201 pcre2_match_context * pcre_gen_mtc_ctx = NULL;
1202 pcre2_general_context * pcre_mlc_ctx = NULL;
1203 pcre2_compile_context * pcre_mlc_cmp_ctx = NULL;
1204
1205 uschar *percent_hack_domains   = NULL;
1206 const uschar *pid_file_path    = US PID_FILE_PATH
1207                            "\0<--------------Space to patch pid_file_path->";
1208 #ifndef DISABLE_PIPE_CONNECT
1209 uschar *pipe_connect_advertise_hosts = US"*";
1210 #endif
1211 uschar *pipelining_advertise_hosts = US"*";
1212 uschar *primary_hostname       = NULL;
1213 uschar *process_info;
1214 int     process_info_len       = 0;
1215 uschar *process_log_path       = NULL;
1216 const uschar *process_purpose  = US"fresh-exec";
1217
1218 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMENTAL_XCLIENT)
1219 uschar *proxy_external_address = NULL;
1220 int     proxy_external_port    = 0;
1221 uschar *proxy_local_address    = NULL;
1222 int     proxy_local_port       = 0;
1223 int     proxy_protocol_timeout = 3;
1224 #endif
1225
1226 uschar *prvscheck_address      = NULL;
1227 uschar *prvscheck_keynum       = NULL;
1228 uschar *prvscheck_result       = NULL;
1229
1230
1231 qrunner *qrunners              = NULL;
1232
1233 const uschar *qualify_domain_recipient = NULL;
1234 uschar *qualify_domain_sender  = NULL;
1235 uschar *queue_domains          = NULL;
1236 int     queue_interval         = -1;
1237 uschar *queue_name             = US"";
1238 uschar *queue_name_dest        = NULL;
1239 uschar *queue_only_file        = NULL;
1240 int     queue_only_load        = -1;
1241 uschar *queue_run_max          = US"5";
1242 pid_t   queue_run_pid          = (pid_t)0;
1243 int     queue_run_pipe         = -1;
1244 unsigned queue_size            = 0;
1245 time_t  queue_size_next        = 0;
1246 uschar *queue_smtp_domains     = NULL;
1247
1248 uint32_t random_seed           = 0;
1249 tree_node *ratelimiters_cmd    = NULL;
1250 tree_node *ratelimiters_conn   = NULL;
1251 tree_node *ratelimiters_mail   = NULL;
1252 uschar *raw_active_hostname    = NULL;
1253 const uschar *raw_sender       = NULL;
1254 const uschar **raw_recipients  = NULL;
1255 int     raw_recipients_count   = 0;
1256
1257 int     rcpt_count             = 0;
1258 int     rcpt_fail_count        = 0;
1259 int     rcpt_defer_count       = 0;
1260 gid_t   real_gid;
1261 uid_t   real_uid;
1262 int     receive_linecount      = 0;
1263 int     receive_messagecount   = 0;
1264 int     receive_timeout        = 0;
1265 int     received_count         = 0;
1266 const uschar *received_for     = NULL;
1267
1268 /*  This is the default text for Received headers generated by Exim. The
1269 date  will be automatically added on the end. */
1270
1271 uschar *received_header_text   = US
1272      "Received: "
1273      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1274        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1275          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1276      "by $primary_hostname "
1277      "${if def:received_protocol {with $received_protocol }}"
1278 #ifndef DISABLE_TLS
1279      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1280      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1281 #endif
1282      "(Exim $version_number)\n\t"
1283      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1284      "id $message_exim_id"
1285      "${if def:received_for {\n\tfor $received_for}}"
1286      "\0<---------------Space to patch received_header_text->";
1287
1288 int     received_headers_max   = 30;
1289 uschar *received_protocol      = NULL;
1290 struct timeval received_time   = { 0, 0 };
1291 struct timeval received_time_complete = { 0, 0 };
1292 uschar *recipient_data         = NULL;
1293 uschar *recipient_unqualified_hosts = NULL;
1294 uschar *recipient_verify_failure = NULL;
1295 int     recipients_count       = 0;
1296 recipient_item  *recipients_list = NULL;
1297 int     recipients_list_max    = 0;
1298 uschar *recipients_max         = US"50000";
1299 int     recipients_max_expanded= 0;
1300 const pcre2_code *regex_AUTH         = NULL;
1301 const pcre2_code *regex_check_dns_names = NULL;
1302 const pcre2_code *regex_From         = NULL;
1303 const pcre2_code *regex_IGNOREQUOTA  = NULL;
1304 const pcre2_code *regex_PIPELINING   = NULL;
1305 const pcre2_code *regex_SIZE         = NULL;
1306 #ifndef DISABLE_PIPE_CONNECT
1307 const pcre2_code *regex_EARLY_PIPE   = NULL;
1308 #endif
1309 int    regex_cachesize               = 0;
1310 const pcre2_code *regex_ismsgid      = NULL;
1311 const pcre2_code *regex_smtp_code    = NULL;
1312 const uschar *regex_vars[REGEX_VARS] = { NULL };
1313 #ifdef WHITELIST_D_MACROS
1314 const pcre2_code *regex_whitelisted_macro = NULL;
1315 #endif
1316 #ifdef WITH_CONTENT_SCAN
1317 uschar *regex_match_string     = NULL;
1318 #endif
1319 int     remote_delivery_count  = 0;
1320 int     remote_max_parallel    = 4;
1321 uschar *remote_sort_domains    = NULL;
1322 int     retry_data_expire      = 7*24*60*60;
1323 int     retry_interval_max     = 24*60*60;
1324 int     retry_maximum_timeout  = 0;        /* set from retry config */
1325 retry_config  *retries         = NULL;
1326 const uschar *return_path            = NULL;
1327 int     rewrite_existflags     = 0;
1328 uschar *rfc1413_hosts          = US"@[]";
1329 int     rfc1413_query_timeout  = 0;
1330 uid_t   root_gid               = ROOT_GID;
1331 uid_t   root_uid               = ROOT_UID;
1332
1333 router_instance  *routers  = NULL;
1334
1335 /* All elements not mentioned will be 0/NULL/FALSE */
1336 router_instance  router_defaults = {
1337     .self =                     US"freeze",
1338
1339     .address_test =             TRUE,
1340     .expn =                     TRUE,
1341     .log_as_local =             TRUE_UNSET,
1342     .more =                     TRUE,
1343     .repeat_use =               TRUE,
1344     .retry_use_local_part =     TRUE_UNSET,
1345     .verify_recipient =         TRUE,
1346     .verify_sender =            TRUE,
1347
1348     .self_code =                self_freeze,
1349     .uid =                      (uid_t)(-1),
1350     .gid =                      (gid_t)(-1),
1351
1352     .dnssec =                   { .request= US"*", .require=NULL },
1353 };
1354
1355 const uschar *router_name      = NULL;
1356 tree_node *router_var          = NULL;
1357
1358 ip_address_item *running_interfaces = NULL;
1359
1360 /* This is a weird one. The following string gets patched in the binary by the
1361 script that sets up a copy of Exim for running in the test harness. It seems
1362 that compilers are now clever, and share constant strings if they can.
1363 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1364 make use of the end of this string in order to save space. So the patching then
1365 wrecks this. We defeat this optimization by adding some additional characters
1366 onto the end of the string. */
1367
1368 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1369
1370 int     runrc                  = 0;
1371
1372 uschar *search_error_message   = NULL;
1373 uschar *self_hostname          = NULL;
1374 const uschar *sender_address   = NULL;
1375 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1376 uschar *sender_address_data    = NULL;
1377 const uschar *sender_address_unrewritten = NULL;
1378 uschar *sender_data            = NULL;
1379 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1380 uschar *sender_fullhost        = NULL;
1381 uschar *sender_helo_name       = NULL;
1382 uschar **sender_host_aliases   = &no_aliases;
1383 uschar *sender_host_address    = NULL;
1384 uschar *sender_host_authenticated = NULL;
1385 uschar *sender_host_auth_pubname  = NULL;
1386 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1387 uschar *sender_host_name       = NULL;
1388 int     sender_host_port       = 0;
1389 uschar *sender_ident           = NULL;
1390 uschar *sender_rate            = NULL;
1391 uschar *sender_rate_limit      = NULL;
1392 uschar *sender_rate_period     = NULL;
1393 uschar *sender_rcvhost         = NULL;
1394 uschar *sender_unqualified_hosts = NULL;
1395 uschar *sender_verify_failure = NULL;
1396 address_item *sender_verified_list  = NULL;
1397 address_item *sender_verified_failed = NULL;
1398 int     sender_verified_rc     = -1;
1399 uschar *sending_ip_address     = NULL;
1400 int     sending_port           = -1;
1401 SIGNAL_BOOL sigalrm_seen       = FALSE;
1402 const uschar *sigalarm_setter  = NULL;
1403 const uschar **sighup_argv     = NULL;
1404 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1405 int     smtp_accept_count      = 0;
1406 int     smtp_accept_max        = 20;
1407 int     smtp_accept_max_nonmail= 10;
1408 uschar *smtp_accept_max_nonmail_hosts = US"*";
1409 uschar *smtp_accept_max_per_connection = US"1000";
1410 uschar *smtp_accept_max_per_host = NULL;
1411 int     smtp_accept_queue      = 0;
1412 int     smtp_accept_queue_per_connection = 10;
1413 int     smtp_accept_reserve    = 0;
1414 uschar *smtp_active_hostname   = NULL;
1415 int     smtp_backlog_monitor   = 0;
1416 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1417                              "Exim $version_number $tod_full"
1418                              "\0<---------------Space to patch smtp_banner->";
1419 int     smtp_ch_index          = 0;
1420 uschar *smtp_cmd_argument      = NULL;
1421 uschar *smtp_cmd_buffer        = NULL;
1422 struct timeval smtp_connection_start  = {0,0};
1423 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1424 int     smtp_connect_backlog   = 20;
1425 double  smtp_delay_mail        = 0.0;
1426 double  smtp_delay_rcpt        = 0.0;
1427 FILE   *smtp_in                = NULL;
1428 int     smtp_listen_backlog    = 0;
1429 int     smtp_load_reserve      = -1;
1430 int     smtp_mailcmd_count     = 0;
1431 int     smtp_mailcmd_max       = -1;
1432 FILE   *smtp_out               = NULL;
1433 uschar *smtp_etrn_command      = NULL;
1434 int     smtp_max_synprot_errors= 3;
1435 int     smtp_max_unknown_commands = 3;
1436 uschar *smtp_notquit_reason    = NULL;
1437 unsigned smtp_peer_options     = 0;
1438 unsigned smtp_peer_options_wrap= 0;
1439 uschar *smtp_ratelimit_hosts   = NULL;
1440 uschar *smtp_ratelimit_mail    = NULL;
1441 uschar *smtp_ratelimit_rcpt    = NULL;
1442 uschar *smtp_read_error        = US"";
1443 int     smtp_receive_timeout   = 5*60;
1444 uschar *smtp_receive_timeout_s = NULL;
1445 uschar *smtp_reserve_hosts     = NULL;
1446 int     smtp_rlm_base          = 0;
1447 double  smtp_rlm_factor        = 0.0;
1448 int     smtp_rlm_limit         = 0;
1449 int     smtp_rlm_threshold     = INT_MAX;
1450 int     smtp_rlr_base          = 0;
1451 double  smtp_rlr_factor        = 0.0;
1452 int     smtp_rlr_limit         = 0;
1453 int     smtp_rlr_threshold     = INT_MAX;
1454 #ifdef SUPPORT_I18N
1455 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1456 #endif
1457
1458 #ifdef WITH_CONTENT_SCAN
1459 uschar *spamd_address          = US"127.0.0.1 783";
1460 uschar *spam_bar               = NULL;
1461 uschar *spam_report            = NULL;
1462 uschar *spam_action            = NULL;
1463 uschar *spam_score             = NULL;
1464 uschar *spam_score_int         = NULL;
1465 #endif
1466
1467 FILE   *spool_data_file        = NULL;
1468 uschar *spool_directory        = US SPOOL_DIRECTORY
1469                            "\0<--------------Space to patch spool_directory->";
1470 #ifdef SUPPORT_SRS
1471 uschar *srs_recipient          = NULL;
1472 #endif
1473 int     string_datestamp_offset= -1;
1474 int     string_datestamp_length= 0;
1475 int     string_datestamp_type  = -1;
1476 const uschar *submission_domain = NULL;
1477 const uschar *submission_name  = NULL;
1478 int     syslog_facility        = LOG_MAIL;
1479 const uschar *syslog_processname= US"exim";
1480 uschar *system_filter          = NULL;
1481
1482 uschar *system_filter_directory_transport = NULL;
1483 uschar *system_filter_file_transport = NULL;
1484 uschar *system_filter_pipe_transport = NULL;
1485 uschar *system_filter_reply_transport = NULL;
1486
1487 gid_t   system_filter_gid      = 0;
1488 uid_t   system_filter_uid      = (uid_t)-1;
1489
1490 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1491 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1492 #ifdef USE_TCP_WRAPPERS
1493 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1494 #endif
1495 int     test_harness_load_avg  = 0;
1496 int     thismessage_size_limit = 0;
1497 int     timeout_frozen_after   = 0;
1498 #ifdef MEASURE_TIMING
1499 struct timeval timestamp_startup;
1500 #endif
1501
1502 transport_instance  *transports = NULL;
1503
1504 transport_instance  transport_defaults = {
1505     /* All non-mentioned elements zero/NULL/FALSE */
1506     .batch_max =                1,
1507     .multi_domain =             TRUE,
1508     .max_addresses =            US"100",
1509     .connection_max_messages =  500,
1510     .uid =                      (uid_t)(-1),
1511     .gid =                      (gid_t)(-1),
1512     .filter_timeout =           300,
1513     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1514                                                  1 nor 0 so can detect unset */
1515 };
1516
1517 int     transport_count;
1518 const uschar *transport_name          = NULL;
1519 int     transport_newlines;
1520 const uschar **transport_filter_argv  = NULL;
1521 int     transport_filter_timeout;
1522 int     transport_write_timeout= 0;
1523
1524 tree_node  *tree_dns_fails     = NULL;
1525 tree_node  *tree_duplicates    = NULL;
1526 tree_node  *tree_nonrecipients = NULL;
1527 tree_node  *tree_unusable      = NULL;
1528
1529 gid_t  *trusted_groups         = NULL;
1530 uid_t  *trusted_users          = NULL;
1531 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1532
1533 uschar *unknown_login          = NULL;
1534 uschar *unknown_username       = NULL;
1535 uschar *untrusted_set_sender   = NULL;
1536
1537 /*  A regex for matching a "From_" line in an incoming message, in the form
1538
1539     From ph10 Fri Jan  5 12:35 GMT 1996
1540
1541 which  the "mail" commands send to the MTA (undocumented, of course), or in
1542 the  form
1543
1544     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1545
1546 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1547 Because  of variations in time formats, just match up to the minutes. That
1548 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1549 so  just require one digit for hours and minutes. The weekday is also absent
1550 in  some forms. */
1551
1552 uschar *uucp_from_pattern      = US
1553    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1554    "(?:"                                          /* Non-extracting bracket */
1555    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1556    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1557    ")"                                            /* End alternation */
1558    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1559
1560 uschar *uucp_from_sender       = US"$1";
1561
1562 uschar *verify_mode            = NULL;
1563 uschar *version_copyright      =
1564  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1565    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2024";
1566 uschar *version_date           = US"?";
1567 uschar *version_cnumber        = US"????";
1568 uschar *version_string         = US"?";
1569
1570 uschar *warn_message_file      = NULL;
1571 int     warning_count          = 0;
1572 const uschar *warnmsg_delay    = NULL;
1573 const uschar *warnmsg_recipients = NULL;
1574
1575 #ifndef DISABLE_WELLKNOWN
1576 uschar *wellknown_advertise_hosts = NULL;
1577 uschar *wellknown_response     = NULL;
1578 #endif
1579
1580 /*  End of globals.c */
1581 /* vi: aw ai sw=2
1582 */