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. */
 102
 103 tls_support tls_in = {
 104  .active =              -1,
 105  .bits =                0,
 106  .certificate_verified = FALSE,
 107 #ifdef SUPPORT_DANE
 108  .dane_verified =       FALSE,
 109  .tlsa_usage =          0,
 110 #endif
 111  .cipher =              NULL,
 112  .on_connect =          FALSE,
 113  .on_connect_ports =    NULL,
 114  .ourcert =             NULL,
 115  .peercert =            NULL,
 116  .peerdn =              NULL,
 117  .sni =                 NULL,
 118  .ocsp =                OCSP_NOT_REQ
 119 };
 120 tls_support tls_out = {
 121  .active =              -1,
 122  .bits =                0,
 123  .certificate_verified = FALSE,
 124 #ifdef SUPPORT_DANE
 125  .dane_verified =       FALSE,
 126  .tlsa_usage =          0,
 127 #endif
 128  .cipher =              NULL,
 129  .on_connect =          FALSE,
 130  .on_connect_ports =    NULL,
 131  .ourcert =             NULL,
 132  .peercert =            NULL,
 133  .peerdn =              NULL,
 134  .sni =                 NULL,
 135  .ocsp =                OCSP_NOT_REQ
 136 };
 137
 138 uschar *dsn_envid              = NULL;
 139 int     dsn_ret                = 0;
 140 const pcre  *regex_DSN         = NULL;
 141 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *openssl_options        = NULL;
 147 const pcre *regex_STARTTLS     = NULL;
 148 uschar *tls_advertise_hosts    = US"*";
 149 uschar *tls_certificate        = NULL;
 150 uschar *tls_crl                = NULL;
 151 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 152 that's the interop problem which has been observed: GnuTLS suggesting a higher
 153 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 154 int     tls_dh_max_bits        = 2236;
 155 uschar *tls_dhparam            = NULL;
 156 uschar *tls_eccurve            = US"auto";
 157 # ifndef DISABLE_OCSP
 158 uschar *tls_ocsp_file          = NULL;
 159 # endif
 160 uschar *tls_privatekey         = NULL;
 161 BOOL    tls_remember_esmtp     = FALSE;
 162 uschar *tls_require_ciphers    = NULL;
 163 uschar *tls_try_verify_hosts   = NULL;
 164 uschar *tls_verify_certificates= US"system";
 165 uschar *tls_verify_hosts       = NULL;
 166 #else   /*!SUPPORT_TLS*/
 167 uschar *tls_advertise_hosts    = NULL;
 168 #endif
 169
 170 #ifndef DISABLE_PRDR
 171 /* Per Recipient Data Response variables */
 172 BOOL    prdr_enable            = FALSE;
 173 BOOL    prdr_requested         = FALSE;
 174 const pcre *regex_PRDR         = NULL;
 175 #endif
 176
 177 #ifdef SUPPORT_I18N
 178 const pcre *regex_UTF8         = NULL;
 179 #endif
 180
 181 /* Input-reading functions for messages, so we can use special ones for
 182 incoming TCP/IP. The defaults use stdin. We never need these for any
 183 stand-alone tests. */
 184
 185 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 187 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 188 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 189 int (*receive_getc)(unsigned)  = stdin_getc;
 190 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 191 void (*receive_get_cache)(void)= NULL;
 192 int (*receive_ungetc)(int)     = stdin_ungetc;
 193 int (*receive_feof)(void)      = stdin_feof;
 194 int (*receive_ferror)(void)    = stdin_ferror;
 195 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 196 #endif
 197
 198
 199 /* List of per-address expansion variables for clearing and saving/restoring
 200 when verifying one address while routing/verifying another. We have to have
 201 the size explicit, because it is referenced from more than one module. */
 202
 203 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 204   CUSS &deliver_address_data,
 205   CUSS &deliver_domain,
 206   CUSS &deliver_domain_data,
 207   CUSS &deliver_domain_orig,
 208   CUSS &deliver_domain_parent,
 209   CUSS &deliver_localpart,
 210   CUSS &deliver_localpart_data,
 211   CUSS &deliver_localpart_orig,
 212   CUSS &deliver_localpart_parent,
 213   CUSS &deliver_localpart_prefix,
 214   CUSS &deliver_localpart_suffix,
 215   CUSS (uschar **)(&deliver_recipients),
 216   CUSS &deliver_host,
 217   CUSS &deliver_home,
 218   CUSS &address_file,
 219   CUSS &address_pipe,
 220   CUSS &self_hostname,
 221   NULL };
 222
 223 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 224
 225 /* General global variables */
 226
 227 header_line *acl_added_headers = NULL;
 228 tree_node *acl_anchor          = NULL;
 229 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 230                                   NULL, NULL, NULL, NULL};
 231 int     acl_narg               = 0;
 232
 233 int     acl_level              = 0;
 234
 235 uschar *acl_not_smtp           = NULL;
 236 #ifdef WITH_CONTENT_SCAN
 237 uschar *acl_not_smtp_mime      = NULL;
 238 #endif
 239 uschar *acl_not_smtp_start     = NULL;
 240 uschar *acl_removed_headers    = NULL;
 241 uschar *acl_smtp_auth          = NULL;
 242 uschar *acl_smtp_connect       = NULL;
 243 uschar *acl_smtp_data          = NULL;
 244 #ifndef DISABLE_PRDR
 245 uschar *acl_smtp_data_prdr     = US"accept";
 246 #endif
 247 #ifndef DISABLE_DKIM
 248 uschar *acl_smtp_dkim          = NULL;
 249 #endif
 250 uschar *acl_smtp_etrn          = NULL;
 251 uschar *acl_smtp_expn          = NULL;
 252 uschar *acl_smtp_helo          = NULL;
 253 uschar *acl_smtp_mail          = NULL;
 254 uschar *acl_smtp_mailauth      = NULL;
 255 #ifdef WITH_CONTENT_SCAN
 256 uschar *acl_smtp_mime          = NULL;
 257 #endif
 258 uschar *acl_smtp_notquit       = NULL;
 259 uschar *acl_smtp_predata       = NULL;
 260 uschar *acl_smtp_quit          = NULL;
 261 uschar *acl_smtp_rcpt          = NULL;
 262 uschar *acl_smtp_starttls      = NULL;
 263 uschar *acl_smtp_vrfy          = NULL;
 264
 265 BOOL    acl_temp_details       = FALSE;
 266 tree_node *acl_var_c           = NULL;
 267 tree_node *acl_var_m           = NULL;
 268 uschar *acl_verify_message     = NULL;
 269 string_item *acl_warn_logged   = NULL;
 270
 271 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 272 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 273
 274 uschar *acl_wherenames[]       = { US"RCPT",
 275                                    US"MAIL",
 276                                    US"PREDATA",
 277                                    US"MIME",
 278                                    US"DKIM",
 279                                    US"DATA",
 280 #ifndef DISABLE_PRDR
 281                                    US"PRDR",
 282 #endif
 283                                    US"non-SMTP",
 284                                    US"AUTH",
 285                                    US"connection",
 286                                    US"ETRN",
 287                                    US"EXPN",
 288                                    US"EHLO or HELO",
 289                                    US"MAILAUTH",
 290                                    US"non-SMTP-start",
 291                                    US"NOTQUIT",
 292                                    US"QUIT",
 293                                    US"STARTTLS",
 294                                    US"VRFY",
 295                                    US"delivery",
 296                                    US"unknown"
 297                                  };
 298
 299 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 300                                    US"550",     /* MAIL */
 301                                    US"550",     /* PREDATA */
 302                                    US"550",     /* MIME */
 303                                    US"550",     /* DKIM */
 304                                    US"550",     /* DATA */
 305 #ifndef DISABLE_PRDR
 306                                    US"550",    /* RCPT PRDR */
 307 #endif
 308                                    US"0",       /* not SMTP; not relevant */
 309                                    US"503",     /* AUTH */
 310                                    US"550",     /* connect */
 311                                    US"458",     /* ETRN */
 312                                    US"550",     /* EXPN */
 313                                    US"550",     /* HELO/EHLO */
 314                                    US"0",       /* MAILAUTH; not relevant */
 315                                    US"0",       /* not SMTP; not relevant */
 316                                    US"0",       /* NOTQUIT; not relevant */
 317                                    US"0",       /* QUIT; not relevant */
 318                                    US"550",     /* STARTTLS */
 319                                    US"252",     /* VRFY */
 320                                    US"0",       /* delivery; not relevant */
 321                                    US"0"        /* unknown; not relevant */
 322                                  };
 323
 324 BOOL    active_local_from_check = FALSE;
 325 BOOL    active_local_sender_retain = FALSE;
 326 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 327 uschar *add_environment        = NULL;
 328 address_item  *addr_duplicate  = NULL;
 329
 330 address_item address_defaults = {
 331   .next =               NULL,
 332   .parent =             NULL,
 333   .first =              NULL,
 334   .dupof =              NULL,
 335   .start_router =       NULL,
 336   .router =             NULL,
 337   .transport =          NULL,
 338   .host_list =          NULL,
 339   .host_used =          NULL,
 340   .fallback_hosts =     NULL,
 341   .reply =              NULL,
 342   .retries =            NULL,
 343   .address =            NULL,
 344   .unique =             NULL,
 345   .cc_local_part =      NULL,
 346   .lc_local_part =      NULL,
 347   .local_part =         NULL,
 348   .prefix =             NULL,
 349   .suffix =             NULL,
 350   .domain =             NULL,
 351   .address_retry_key =  NULL,
 352   .domain_retry_key =   NULL,
 353   .current_dir =        NULL,
 354   .home_dir =           NULL,
 355   .message =            NULL,
 356   .user_message =       NULL,
 357   .onetime_parent =     NULL,
 358   .pipe_expandn =       NULL,
 359   .return_filename =    NULL,
 360   .self_hostname =      NULL,
 361   .shadow_message =     NULL,
 362 #ifdef SUPPORT_TLS
 363   .cipher =             NULL,
 364   .ourcert =            NULL,
 365   .peercert =           NULL,
 366   .peerdn =             NULL,
 367   .ocsp =               OCSP_NOT_REQ,
 368 #endif
 369 #ifdef EXPERIMENTAL_DSN_INFO
 370   .smtp_greeting =      NULL,
 371   .helo_response =      NULL,
 372 #endif
 373   .authenticator =      NULL,
 374   .auth_id =            NULL,
 375   .auth_sndr =          NULL,
 376   .dsn_orcpt =          NULL,
 377   .dsn_flags =          0,
 378   .dsn_aware =          0,
 379   .uid =                (uid_t)(-1),
 380   .gid =                (gid_t)(-1),
 381   .flags =              { 0 },
 382   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 383   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 384   .mode =               -1,
 385   .more_errno =         0,
 386   .delivery_usec =      0,
 387   .basic_errno =        ERRNO_UNKNOWNERROR,
 388   .child_count =        0,
 389   .return_file =        -1,
 390   .special_action =     SPECIAL_NONE,
 391   .transport_return =   DEFER,
 392   .prop = {                                     /* fields that are propagated to children */
 393     .address_data =     NULL,
 394     .domain_data =      NULL,
 395     .localpart_data =   NULL,
 396     .errors_address =   NULL,
 397     .extra_headers =    NULL,
 398     .remove_headers =   NULL,
 399 #ifdef EXPERIMENTAL_SRS
 400     .srs_sender =       NULL,
 401 #endif
 402     .ignore_error =     FALSE,
 403 #ifdef SUPPORT_I18N
 404     .utf8_msg =         FALSE,
 405     .utf8_downcvt =     FALSE,
 406     .utf8_downcvt_maybe = FALSE
 407 #endif
 408   }
 409 };
 410
 411 uschar *address_file           = NULL;
 412 uschar *address_pipe           = NULL;
 413 BOOL    address_test_mode      = FALSE;
 414 tree_node *addresslist_anchor  = NULL;
 415 int     addresslist_count      = 0;
 416 gid_t  *admin_groups           = NULL;
 417 BOOL    admin_user             = FALSE;
 418 BOOL    allow_auth_unadvertised= FALSE;
 419 BOOL    allow_domain_literals  = FALSE;
 420 BOOL    allow_mx_to_ip         = FALSE;
 421 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 422 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 423 BOOL    allow_utf8_domains      = FALSE;
 424
 425 #ifdef EXPERIMENTAL_ARC
 426 struct arc_set *arc_received    = NULL;
 427 int     arc_received_instance   = 0;
 428 int     arc_oldest_pass         = 0;
 429 const uschar *arc_state         = NULL;
 430 const uschar *arc_state_reason  = NULL;
 431 #endif
 432
 433 uschar *authenticated_fail_id  = NULL;
 434 uschar *authenticated_id       = NULL;
 435 uschar *authenticated_sender   = NULL;
 436 BOOL    authentication_failed  = FALSE;
 437 BOOL    authentication_local   = FALSE;
 438 auth_instance  *auths          = NULL;
 439 uschar *auth_advertise_hosts   = US"*";
 440 auth_instance auth_defaults    = {
 441     .next =             NULL,
 442     .name =             NULL,
 443     .info =             NULL,
 444     .options_block =    NULL,
 445     .driver_name =      NULL,
 446     .advertise_condition = NULL,
 447     .client_condition = NULL,
 448     .public_name =      NULL,
 449     .set_id =           NULL,
 450     .set_client_id =    NULL,
 451     .mail_auth_condition = NULL,
 452     .server_debug_string = NULL,
 453     .server_condition = NULL,
 454     .client =           FALSE,
 455     .server =           FALSE,
 456     .advertised =       FALSE
 457 };
 458
 459 uschar *auth_defer_msg         = US"reason not recorded";
 460 uschar *auth_defer_user_msg    = US"";
 461 uschar *auth_vars[AUTH_VARS];
 462 int     auto_thaw              = 0;
 463 #ifdef WITH_CONTENT_SCAN
 464 BOOL    av_failed              = FALSE;
 465 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 466 #endif
 467
 468 BOOL    background_daemon      = TRUE;
 469
 470 #if BASE_62 == 62
 471 uschar *base62_chars=
 472     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 473 #else
 474 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 475 #endif
 476
 477 uschar *bi_command             = NULL;
 478 uschar *big_buffer             = NULL;
 479 int     big_buffer_size        = BIG_BUFFER_SIZE;
 480 #ifdef EXPERIMENTAL_BRIGHTMAIL
 481 uschar *bmi_alt_location       = NULL;
 482 uschar *bmi_base64_tracker_verdict = NULL;
 483 uschar *bmi_base64_verdict     = NULL;
 484 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 485 int     bmi_deliver            = 1;
 486 int     bmi_run                = 0;
 487 uschar *bmi_verdicts           = NULL;
 488 #endif
 489 int     bsmtp_transaction_linecount = 0;
 490 int     body_8bitmime          = 0;
 491 int     body_linecount         = 0;
 492 int     body_zerocount         = 0;
 493 uschar *bounce_message_file    = NULL;
 494 uschar *bounce_message_text    = NULL;
 495 uschar *bounce_recipient       = NULL;
 496 BOOL    bounce_return_body     = TRUE;
 497 int     bounce_return_linesize_limit = 998;
 498 BOOL    bounce_return_message  = TRUE;
 499 int     bounce_return_size_limit = 100*1024;
 500 uschar *bounce_sender_authentication = NULL;
 501
 502 uschar *callout_address        = NULL;
 503 int     callout_cache_domain_positive_expire = 7*24*60*60;
 504 int     callout_cache_domain_negative_expire = 3*60*60;
 505 int     callout_cache_positive_expire = 24*60*60;
 506 int     callout_cache_negative_expire = 2*60*60;
 507 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 508 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 509 int     check_log_inodes       = 100;
 510 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 511 BOOL    check_rfc2047_length   = TRUE;
 512 int     check_spool_inodes     = 100;
 513 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 514
 515 uschar *chunking_advertise_hosts = US"*";
 516 unsigned chunking_datasize     = 0;
 517 unsigned chunking_data_left    = 0;
 518 BOOL    chunking_offered       = FALSE;
 519 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 520 const pcre *regex_CHUNKING     = NULL;
 521
 522 uschar *client_authenticator   = NULL;
 523 uschar *client_authenticated_id = NULL;
 524 uschar *client_authenticated_sender = NULL;
 525 int     clmacro_count          = 0;
 526 uschar *clmacros[MAX_CLMACROS];
 527 BOOL    commandline_checks_require_admin = FALSE;
 528 BOOL    config_changed         = FALSE;
 529 FILE   *config_file            = NULL;
 530 const uschar *config_filename  = NULL;
 531 int     config_lineno          = 0;
 532 #ifdef CONFIGURE_GROUP
 533 gid_t   config_gid             = CONFIGURE_GROUP;
 534 #else
 535 gid_t   config_gid             = 0;
 536 #endif
 537 uschar *config_main_filelist   = US CONFIGURE_FILE
 538                          "\0<-----------Space to patch configure_filename->";
 539 uschar *config_main_filename   = NULL;
 540 uschar *config_main_directory  = NULL;
 541
 542 #ifdef CONFIGURE_OWNER
 543 uid_t   config_uid             = CONFIGURE_OWNER;
 544 #else
 545 uid_t   config_uid             = 0;
 546 #endif
 547
 548 int     connection_max_messages= -1;
 549 uschar *continue_proxy_cipher  = NULL;
 550 uschar *continue_hostname      = NULL;
 551 uschar *continue_host_address  = NULL;
 552 BOOL    continue_more          = FALSE;
 553 int     continue_sequence      = 1;
 554 uschar *continue_transport     = NULL;
 555
 556 uschar *csa_status             = NULL;
 557 cut_t   cutthrough = {
 558   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 559   .delivery =           FALSE,                          /* when to attempt */
 560   .defer_pass =         FALSE,                          /* on defer: spool locally */
 561   .is_tls =             FALSE,                          /* not a TLS conn yet */
 562   .fd =                 -1,                             /* open connection */
 563   .nrcpt =              0,                              /* number of addresses */
 564 };
 565
 566 BOOL    daemon_listen          = FALSE;
 567 uschar *daemon_smtp_port       = US"smtp";
 568 int     daemon_startup_retries = 9;
 569 int     daemon_startup_sleep   = 30;
 570
 571 #ifdef EXPERIMENTAL_DCC
 572 BOOL    dcc_direct_add_header  = FALSE;
 573 uschar *dcc_header             = NULL;
 574 uschar *dcc_result             = NULL;
 575 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 576 uschar *dccifd_options         = US"header";
 577 #endif
 578
 579 BOOL    debug_daemon           = FALSE;
 580 int     debug_fd               = -1;
 581 FILE   *debug_file             = NULL;
 582 int     debug_notall[]         = {
 583   Di_memory,
 584   -1
 585 };
 586 bit_table debug_options[]      = { /* must be in alphabetical order */
 587   BIT_TABLE(D, acl),
 588   BIT_TABLE(D, all),
 589   BIT_TABLE(D, auth),
 590   BIT_TABLE(D, deliver),
 591   BIT_TABLE(D, dns),
 592   BIT_TABLE(D, dnsbl),
 593   BIT_TABLE(D, exec),
 594   BIT_TABLE(D, expand),
 595   BIT_TABLE(D, filter),
 596   BIT_TABLE(D, hints_lookup),
 597   BIT_TABLE(D, host_lookup),
 598   BIT_TABLE(D, ident),
 599   BIT_TABLE(D, interface),
 600   BIT_TABLE(D, lists),
 601   BIT_TABLE(D, load),
 602   BIT_TABLE(D, local_scan),
 603   BIT_TABLE(D, lookup),
 604   BIT_TABLE(D, memory),
 605   BIT_TABLE(D, pid),
 606   BIT_TABLE(D, process_info),
 607   BIT_TABLE(D, queue_run),
 608   BIT_TABLE(D, receive),
 609   BIT_TABLE(D, resolver),
 610   BIT_TABLE(D, retry),
 611   BIT_TABLE(D, rewrite),
 612   BIT_TABLE(D, route),
 613   BIT_TABLE(D, timestamp),
 614   BIT_TABLE(D, tls),
 615   BIT_TABLE(D, transport),
 616   BIT_TABLE(D, uid),
 617   BIT_TABLE(D, verify),
 618 };
 619 int     debug_options_count    = nelem(debug_options);
 620
 621 unsigned int debug_selector    = 0;
 622 BOOL    debug_store            = FALSE;
 623 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 624 uschar *delay_warning_condition=
 625   US"${if or {"
 626             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 627             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 628             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 629             "} {no}{yes}}";
 630 BOOL    delivery_date_remove   = TRUE;
 631 uschar *deliver_address_data   = NULL;
 632 int     deliver_datafile       = -1;
 633 const uschar *deliver_domain   = NULL;
 634 uschar *deliver_domain_data    = NULL;
 635 const uschar *deliver_domain_orig = NULL;
 636 const uschar *deliver_domain_parent = NULL;
 637 BOOL    deliver_drop_privilege = FALSE;
 638 BOOL    deliver_firsttime      = FALSE;
 639 BOOL    deliver_force          = FALSE;
 640 BOOL    deliver_freeze         = FALSE;
 641 time_t  deliver_frozen_at      = 0;
 642 uschar *deliver_home           = NULL;
 643 const uschar *deliver_host     = NULL;
 644 const uschar *deliver_host_address = NULL;
 645 int     deliver_host_port      = 0;
 646 uschar *deliver_in_buffer      = NULL;
 647 ino_t   deliver_inode          = 0;
 648 uschar *deliver_localpart      = NULL;
 649 uschar *deliver_localpart_data = NULL;
 650 uschar *deliver_localpart_orig = NULL;
 651 uschar *deliver_localpart_parent = NULL;
 652 uschar *deliver_localpart_prefix = NULL;
 653 uschar *deliver_localpart_suffix = NULL;
 654 BOOL    deliver_force_thaw     = FALSE;
 655 BOOL    deliver_manual_thaw    = FALSE;
 656 uschar *deliver_out_buffer     = NULL;
 657 int     deliver_queue_load_max = -1;
 658 address_item  *deliver_recipients = NULL;
 659 uschar *deliver_selectstring   = NULL;
 660 BOOL    deliver_selectstring_regex = FALSE;
 661 uschar *deliver_selectstring_sender = NULL;
 662 BOOL    deliver_selectstring_sender_regex = FALSE;
 663 BOOL    disable_callout_flush  = FALSE;
 664 BOOL    disable_delay_flush    = FALSE;
 665 #ifdef ENABLE_DISABLE_FSYNC
 666 BOOL    disable_fsync          = FALSE;
 667 #endif
 668 BOOL    disable_ipv6           = FALSE;
 669 BOOL    disable_logging        = FALSE;
 670
 671 #ifndef DISABLE_DKIM
 672 unsigned dkim_collect_input      = 0;
 673 uschar *dkim_cur_signer          = NULL;
 674 BOOL    dkim_disable_verify      = FALSE;
 675 int     dkim_key_length          = 0;
 676 void   *dkim_signatures          = NULL;
 677 uschar *dkim_signers             = NULL;
 678 uschar *dkim_signing_domain      = NULL;
 679 uschar *dkim_signing_selector    = NULL;
 680 uschar *dkim_verify_overall      = NULL;
 681 uschar *dkim_verify_signers      = US"$dkim_signers";
 682 uschar *dkim_verify_status       = NULL;
 683 uschar *dkim_verify_reason       = NULL;
 684 #endif
 685 #ifdef EXPERIMENTAL_DMARC
 686 BOOL    dmarc_has_been_checked  = FALSE;
 687 uschar *dmarc_domain_policy     = NULL;
 688 uschar *dmarc_forensic_sender   = NULL;
 689 uschar *dmarc_history_file      = NULL;
 690 uschar *dmarc_status            = NULL;
 691 uschar *dmarc_status_text       = NULL;
 692 uschar *dmarc_tld_file          = NULL;
 693 uschar *dmarc_used_domain       = NULL;
 694 BOOL    dmarc_disable_verify    = FALSE;
 695 BOOL    dmarc_enable_forensic   = FALSE;
 696 #endif
 697
 698 uschar *dns_again_means_nonexist = NULL;
 699 int     dns_csa_search_limit   = 5;
 700 BOOL    dns_csa_use_reverse    = TRUE;
 701 #ifdef SUPPORT_DANE
 702 int     dns_dane_ok            = -1;
 703 #endif
 704 uschar *dns_ipv4_lookup        = NULL;
 705 int     dns_retrans            = 0;
 706 int     dns_retry              = 0;
 707 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 708 uschar *dns_trust_aa           = NULL;
 709 int     dns_use_edns0          = -1; /* <0 = not coerced */
 710 uschar *dnslist_domain         = NULL;
 711 uschar *dnslist_matched        = NULL;
 712 uschar *dnslist_text           = NULL;
 713 uschar *dnslist_value          = NULL;
 714 tree_node *domainlist_anchor   = NULL;
 715 int     domainlist_count       = 0;
 716 BOOL    dont_deliver           = FALSE;
 717 BOOL    dot_ends               = TRUE;
 718 BOOL    drop_cr                = FALSE;         /* No longer used */
 719 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 720
 721 BOOL    enable_dollar_recipients = FALSE;
 722 BOOL    envelope_to_remove     = TRUE;
 723 int     errno_quota            = ERRNO_QUOTA;
 724 uschar *errors_copy            = NULL;
 725 int     error_handling         = ERRORS_SENDER;
 726 uschar *errors_reply_to        = NULL;
 727 int     errors_sender_rc       = EXIT_FAILURE;
 728 #ifndef DISABLE_EVENT
 729 uschar *event_action             = NULL;        /* expansion for delivery events */
 730 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 731 int     event_defer_errno        = 0;
 732 const uschar *event_name         = NULL;        /* event name variable */
 733 #endif
 734
 735
 736 gid_t   exim_gid               = EXIM_GID;
 737 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 738 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 739                         "\0<---------------Space to patch exim_path->";
 740 uid_t   exim_uid               = EXIM_UID;
 741 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 742 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 743 int     expand_forbid          = 0;
 744 int     expand_nlength[EXPAND_MAXN+1];
 745 int     expand_nmax            = -1;
 746 uschar *expand_nstring[EXPAND_MAXN+1];
 747 BOOL    expand_string_forcedfail = FALSE;
 748 uschar *expand_string_message;
 749 BOOL    extract_addresses_remove_arguments = TRUE;
 750 uschar *extra_local_interfaces = NULL;
 751
 752 int     fake_response          = OK;
 753 uschar *fake_response_text     = US"Your message has been rejected but is "
 754                                    "being kept for evaluation.\nIf it was a "
 755                                    "legitimate message, it may still be "
 756                                    "delivered to the target recipient(s).";
 757 int     filter_n[FILTER_VARIABLE_COUNT];
 758 BOOL    filter_running         = FALSE;
 759 int     filter_sn[FILTER_VARIABLE_COUNT];
 760 int     filter_test            = FTEST_NONE;
 761 uschar *filter_test_sfile      = NULL;
 762 uschar *filter_test_ufile      = NULL;
 763 uschar *filter_thisaddress     = NULL;
 764 int     finduser_retries       = 0;
 765 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 766 uschar *freeze_tell            = NULL;
 767 uschar *freeze_tell_config     = NULL;
 768 uschar *fudged_queue_times     = US"";
 769
 770 uschar *gecos_name             = NULL;
 771 uschar *gecos_pattern          = NULL;
 772 rewrite_rule  *global_rewrite_rules = NULL;
 773
 774 volatile sig_atomic_t had_command_timeout = 0;
 775 volatile sig_atomic_t had_command_sigterm = 0;
 776 volatile sig_atomic_t had_data_timeout    = 0;
 777 volatile sig_atomic_t had_data_sigint     = 0;
 778 uschar *headers_charset        = US HEADERS_CHARSET;
 779 int     header_insert_maxlen   = 64 * 1024;
 780 header_line  *header_last      = NULL;
 781 header_line  *header_list      = NULL;
 782 int     header_maxsize         = HEADER_MAXSIZE;
 783 int     header_line_maxsize    = 0;
 784
 785 header_name header_names[] = {
 786   /* name               len     allow_resent    htype */
 787   { US"bcc",            3,      TRUE,           htype_bcc },
 788   { US"cc",             2,      TRUE,           htype_cc },
 789   { US"date",           4,      TRUE,           htype_date },
 790   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 791   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 792   { US"from",           4,      TRUE,           htype_from },
 793   { US"message-id",    10,      TRUE,           htype_id },
 794   { US"received",       8,      FALSE,          htype_received },
 795   { US"reply-to",       8,      FALSE,          htype_reply_to },
 796   { US"return-path",   11,      FALSE,          htype_return_path },
 797   { US"sender",         6,      TRUE,           htype_sender },
 798   { US"subject",        7,      FALSE,          htype_subject },
 799   { US"to",             2,      TRUE,           htype_to }
 800 };
 801
 802 int header_names_size          = nelem(header_names);
 803
 804 BOOL    header_rewritten       = FALSE;
 805 uschar *helo_accept_junk_hosts = NULL;
 806 uschar *helo_allow_chars       = US"";
 807 uschar *helo_lookup_domains    = US"@ : @[]";
 808 uschar *helo_try_verify_hosts  = NULL;
 809 BOOL    helo_verified          = FALSE;
 810 BOOL    helo_verify_failed     = FALSE;
 811 uschar *helo_verify_hosts      = NULL;
 812 const uschar *hex_digits       = CUS"0123456789abcdef";
 813 uschar *hold_domains           = NULL;
 814 BOOL    host_checking          = FALSE;
 815 BOOL    host_checking_callout  = FALSE;
 816 uschar *host_data              = NULL;
 817 BOOL    host_find_failed_syntax= FALSE;
 818 uschar *host_lookup            = NULL;
 819 BOOL    host_lookup_deferred   = FALSE;
 820 BOOL    host_lookup_failed     = FALSE;
 821 uschar *host_lookup_order      = US"bydns:byaddr";
 822 uschar *host_lookup_msg        = US"";
 823 int     host_number            = 0;
 824 uschar *host_number_string     = NULL;
 825 uschar *host_reject_connection = NULL;
 826 tree_node *hostlist_anchor     = NULL;
 827 int     hostlist_count         = 0;
 828 uschar *hosts_treat_as_local   = NULL;
 829 uschar *hosts_connection_nolog = NULL;
 830
 831 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 832 BOOL    ignore_fromline_local  = FALSE;
 833 uschar *ignore_fromline_hosts  = NULL;
 834 BOOL    inetd_wait_mode        = FALSE;
 835 int     inetd_wait_timeout     = -1;
 836 uschar *initial_cwd            = NULL;
 837 uschar *interface_address      = NULL;
 838 int     interface_port         = -1;
 839 BOOL    is_inetd               = FALSE;
 840 uschar *iterate_item           = NULL;
 841
 842 int     journal_fd             = -1;
 843
 844 uschar *keep_environment       = NULL;
 845
 846 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 847
 848 uschar *eldap_dn               = NULL;
 849 int     load_average           = -2;
 850 BOOL    local_error_message    = FALSE;
 851 BOOL    local_from_check       = TRUE;
 852 uschar *local_from_prefix      = NULL;
 853 uschar *local_from_suffix      = NULL;
 854
 855 #if HAVE_IPV6
 856 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 857 #else
 858 uschar *local_interfaces       = US"0.0.0.0";
 859 #endif
 860
 861 #ifdef HAVE_LOCAL_SCAN
 862 uschar *local_scan_data        = NULL;
 863 int     local_scan_timeout     = 5*60;
 864 #endif
 865 BOOL    local_sender_retain    = FALSE;
 866 gid_t   local_user_gid         = (gid_t)(-1);
 867 uid_t   local_user_uid         = (uid_t)(-1);
 868
 869 tree_node *localpartlist_anchor= NULL;
 870 int     localpartlist_count    = 0;
 871 uschar *log_buffer             = NULL;
 872
 873 int     log_default[]          = { /* for initializing log_selector */
 874   Li_acl_warn_skipped,
 875   Li_connection_reject,
 876   Li_delay_delivery,
 877   Li_dkim,
 878   Li_dnslist_defer,
 879   Li_etrn,
 880   Li_host_lookup_failed,
 881   Li_lost_incoming_connection,
 882   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 883   Li_queue_run,
 884   Li_rejected_header,
 885   Li_retry_defer,
 886   Li_sender_verify_fail,
 887   Li_size_reject,
 888   Li_skip_delivery,
 889   Li_smtp_confirmation,
 890   Li_tls_certificate_verified,
 891   Li_tls_cipher,
 892   -1
 893 };
 894
 895 uschar *log_file_path          = US LOG_FILE_PATH
 896                            "\0<--------------Space to patch log_file_path->";
 897
 898 int     log_notall[]           = {
 899   -1
 900 };
 901 bit_table log_options[]        = { /* must be in alphabetical order */
 902   BIT_TABLE(L, 8bitmime),
 903   BIT_TABLE(L, acl_warn_skipped),
 904   BIT_TABLE(L, address_rewrite),
 905   BIT_TABLE(L, all),
 906   BIT_TABLE(L, all_parents),
 907   BIT_TABLE(L, arguments),
 908   BIT_TABLE(L, connection_reject),
 909   BIT_TABLE(L, delay_delivery),
 910   BIT_TABLE(L, deliver_time),
 911   BIT_TABLE(L, delivery_size),
 912 #ifndef DISABLE_DKIM
 913   BIT_TABLE(L, dkim),
 914   BIT_TABLE(L, dkim_verbose),
 915 #endif
 916   BIT_TABLE(L, dnslist_defer),
 917   BIT_TABLE(L, dnssec),
 918   BIT_TABLE(L, etrn),
 919   BIT_TABLE(L, host_lookup_failed),
 920   BIT_TABLE(L, ident_timeout),
 921   BIT_TABLE(L, incoming_interface),
 922   BIT_TABLE(L, incoming_port),
 923   BIT_TABLE(L, lost_incoming_connection),
 924   BIT_TABLE(L, millisec),
 925   BIT_TABLE(L, outgoing_interface),
 926   BIT_TABLE(L, outgoing_port),
 927   BIT_TABLE(L, pid),
 928 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 929   BIT_TABLE(L, proxy),
 930 #endif
 931   BIT_TABLE(L, queue_run),
 932   BIT_TABLE(L, queue_time),
 933   BIT_TABLE(L, queue_time_overall),
 934   BIT_TABLE(L, receive_time),
 935   BIT_TABLE(L, received_recipients),
 936   BIT_TABLE(L, received_sender),
 937   BIT_TABLE(L, rejected_header),
 938   { US"rejected_headers", Li_rejected_header },
 939   BIT_TABLE(L, retry_defer),
 940   BIT_TABLE(L, return_path_on_delivery),
 941   BIT_TABLE(L, sender_on_delivery),
 942   BIT_TABLE(L, sender_verify_fail),
 943   BIT_TABLE(L, size_reject),
 944   BIT_TABLE(L, skip_delivery),
 945   BIT_TABLE(L, smtp_confirmation),
 946   BIT_TABLE(L, smtp_connection),
 947   BIT_TABLE(L, smtp_incomplete_transaction),
 948   BIT_TABLE(L, smtp_mailauth),
 949   BIT_TABLE(L, smtp_no_mail),
 950   BIT_TABLE(L, smtp_protocol_error),
 951   BIT_TABLE(L, smtp_syntax_error),
 952   BIT_TABLE(L, subject),
 953   BIT_TABLE(L, tls_certificate_verified),
 954   BIT_TABLE(L, tls_cipher),
 955   BIT_TABLE(L, tls_peerdn),
 956   BIT_TABLE(L, tls_sni),
 957   BIT_TABLE(L, unknown_in_list),
 958 };
 959 int     log_options_count      = nelem(log_options);
 960
 961 int     log_reject_target      = 0;
 962 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 963 uschar *log_selector_string    = NULL;
 964 FILE   *log_stderr             = NULL;
 965 BOOL    log_testing_mode       = FALSE;
 966 BOOL    log_timezone           = FALSE;
 967 uschar *login_sender_address   = NULL;
 968 uschar *lookup_dnssec_authenticated = NULL;
 969 int     lookup_open_max        = 25;
 970 uschar *lookup_value           = NULL;
 971
 972 macro_item *macros_user        = NULL;
 973 uschar *mailstore_basename     = NULL;
 974 #ifdef WITH_CONTENT_SCAN
 975 uschar *malware_name           = NULL;  /* Virus Name */
 976 #endif
 977 int     max_received_linelength= 0;
 978 int     max_username_length    = 0;
 979 int     message_age            = 0;
 980 uschar *message_body           = NULL;
 981 uschar *message_body_end       = NULL;
 982 BOOL    message_body_newlines  = FALSE;
 983 int     message_body_size      = 0;
 984 int     message_body_visible   = 500;
 985 int     message_ended          = END_NOTSTARTED;
 986 uschar *message_headers        = NULL;
 987 uschar *message_id;
 988 uschar *message_id_domain      = NULL;
 989 uschar *message_id_text        = NULL;
 990 struct timeval message_id_tv   = { 0, 0 };
 991 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 992 uschar *message_id_external;
 993 int     message_linecount      = 0;
 994 BOOL    message_logs           = TRUE;
 995 int     message_size           = 0;
 996 uschar *message_size_limit     = US"50M";
 997 #ifdef SUPPORT_I18N
 998 BOOL    message_smtputf8       = FALSE;
 999 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1000 #endif
1001 uschar  message_subdir[2]      = { 0, 0 };
1002 uschar *message_reference      = NULL;
1003
1004 /* MIME ACL expandables */
1005 #ifdef WITH_CONTENT_SCAN
1006 int     mime_anomaly_level     = 0;
1007 const uschar *mime_anomaly_text      = NULL;
1008 uschar *mime_boundary          = NULL;
1009 uschar *mime_charset           = NULL;
1010 uschar *mime_content_description = NULL;
1011 uschar *mime_content_disposition = NULL;
1012 uschar *mime_content_id        = NULL;
1013 unsigned int mime_content_size = 0;
1014 uschar *mime_content_transfer_encoding = NULL;
1015 uschar *mime_content_type      = NULL;
1016 uschar *mime_decoded_filename  = NULL;
1017 uschar *mime_filename          = NULL;
1018 int     mime_is_multipart      = 0;
1019 int     mime_is_coverletter    = 0;
1020 int     mime_is_rfc822         = 0;
1021 int     mime_part_count        = -1;
1022 #endif
1023
1024 BOOL    mua_wrapper            = FALSE;
1025
1026 uid_t  *never_users            = NULL;
1027 #ifdef WITH_CONTENT_SCAN
1028 BOOL    no_mbox_unspool        = FALSE;
1029 #endif
1030 BOOL    no_multiline_responses = FALSE;
1031
1032 const int on                   = 1;     /* for setsockopt */
1033 const int off                  = 0;
1034
1035 uid_t   original_euid;
1036 gid_t   originator_gid;
1037 uschar *originator_login       = NULL;
1038 uschar *originator_name        = NULL;
1039 uid_t   originator_uid;
1040 uschar *override_local_interfaces = NULL;
1041 uschar *override_pid_file_path = NULL;
1042
1043 BOOL    parse_allow_group      = FALSE;
1044 BOOL    parse_found_group      = FALSE;
1045 uschar *percent_hack_domains   = NULL;
1046 uschar *pid_file_path          = US PID_FILE_PATH
1047                            "\0<--------------Space to patch pid_file_path->";
1048 BOOL    pipelining_enable      = TRUE;
1049 uschar *pipelining_advertise_hosts = US"*";
1050 BOOL    preserve_message_logs  = FALSE;
1051 uschar *primary_hostname       = NULL;
1052 BOOL    print_topbitchars      = FALSE;
1053 uschar  process_info[PROCESS_INFO_SIZE];
1054 int     process_info_len       = 0;
1055 uschar *process_log_path       = NULL;
1056 BOOL    prod_requires_admin    = TRUE;
1057
1058 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1059 uschar *hosts_proxy            = US"";
1060 uschar *proxy_external_address = US"";
1061 int     proxy_external_port    = 0;
1062 uschar *proxy_local_address    = US"";
1063 int     proxy_local_port       = 0;
1064 BOOL    proxy_session          = FALSE;
1065 BOOL    proxy_session_failed   = FALSE;
1066 #endif
1067
1068 uschar *prvscheck_address      = NULL;
1069 uschar *prvscheck_keynum       = NULL;
1070 uschar *prvscheck_result       = NULL;
1071
1072
1073 const uschar *qualify_domain_recipient = NULL;
1074 uschar *qualify_domain_sender  = NULL;
1075 BOOL    queue_2stage           = FALSE;
1076 uschar *queue_domains          = NULL;
1077 int     queue_interval         = -1;
1078 BOOL    queue_list_requires_admin = TRUE;
1079 uschar *queue_name             = US"";
1080 BOOL    queue_only             = FALSE;
1081 uschar *queue_only_file        = NULL;
1082 int     queue_only_load        = -1;
1083 BOOL    queue_only_load_latch  = TRUE;
1084 BOOL    queue_only_override    = TRUE;
1085 BOOL    queue_only_policy      = FALSE;
1086 BOOL    queue_run_first_delivery = FALSE;
1087 BOOL    queue_run_force        = FALSE;
1088 BOOL    queue_run_in_order     = FALSE;
1089 BOOL    queue_run_local        = FALSE;
1090 uschar *queue_run_max          = US"5";
1091 pid_t   queue_run_pid          = (pid_t)0;
1092 int     queue_run_pipe         = -1;
1093 BOOL    queue_running          = FALSE;
1094 BOOL    queue_smtp             = FALSE;
1095 uschar *queue_smtp_domains     = NULL;
1096
1097 unsigned int random_seed       = 0;
1098 tree_node *ratelimiters_cmd    = NULL;
1099 tree_node *ratelimiters_conn   = NULL;
1100 tree_node *ratelimiters_mail   = NULL;
1101 uschar *raw_active_hostname    = NULL;
1102 uschar *raw_sender             = NULL;
1103 uschar **raw_recipients        = NULL;
1104 int     raw_recipients_count   = 0;
1105
1106 int     rcpt_count             = 0;
1107 int     rcpt_fail_count        = 0;
1108 int     rcpt_defer_count       = 0;
1109 gid_t   real_gid;
1110 uid_t   real_uid;
1111 BOOL    really_exim            = TRUE;
1112 BOOL    receive_call_bombout   = FALSE;
1113 int     receive_linecount      = 0;
1114 int     receive_messagecount   = 0;
1115 int     receive_timeout        = 0;
1116 int     received_count         = 0;
1117 uschar *received_for           = NULL;
1118
1119 /*  This is the default text for Received headers generated by Exim. The
1120 date  will be automatically added on the end. */
1121
1122 uschar *received_header_text   = US
1123      "Received: "
1124      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1125      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1126      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1127      "by $primary_hostname "
1128      "${if def:received_protocol {with $received_protocol}} "
1129      #ifdef SUPPORT_TLS
1130      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1131      #endif
1132      "(Exim $version_number)\n\t"
1133      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1134      "id $message_exim_id"
1135      "${if def:received_for {\n\tfor $received_for}}"
1136      "\0<---------------Space to patch received_header_text->";
1137
1138 int     received_headers_max   = 30;
1139 uschar *received_protocol      = NULL;
1140 struct timeval received_time   = { 0, 0 };
1141 struct timeval received_time_taken = { 0, 0 };
1142 uschar *recipient_data         = NULL;
1143 uschar *recipient_unqualified_hosts = NULL;
1144 uschar *recipient_verify_failure = NULL;
1145 int     recipients_count       = 0;
1146 BOOL    recipients_discarded   = FALSE;
1147 recipient_item  *recipients_list = NULL;
1148 int     recipients_list_max    = 0;
1149 int     recipients_max         = 0;
1150 BOOL    recipients_max_reject  = FALSE;
1151 const pcre *regex_AUTH         = NULL;
1152 const pcre *regex_check_dns_names = NULL;
1153 const pcre *regex_From         = NULL;
1154 const pcre *regex_IGNOREQUOTA  = NULL;
1155 const pcre *regex_PIPELINING   = NULL;
1156 const pcre *regex_SIZE         = NULL;
1157 const pcre *regex_ismsgid      = NULL;
1158 const pcre *regex_smtp_code    = NULL;
1159 uschar *regex_vars[REGEX_VARS];
1160 #ifdef WHITELIST_D_MACROS
1161 const pcre *regex_whitelisted_macro = NULL;
1162 #endif
1163 #ifdef WITH_CONTENT_SCAN
1164 uschar *regex_match_string     = NULL;
1165 #endif
1166 int     remote_delivery_count  = 0;
1167 int     remote_max_parallel    = 2;
1168 uschar *remote_sort_domains    = NULL;
1169 int     retry_data_expire      = 7*24*60*60;
1170 int     retry_interval_max     = 24*60*60;
1171 int     retry_maximum_timeout  = 0;        /* set from retry config */
1172 retry_config  *retries         = NULL;
1173 uschar *return_path            = NULL;
1174 BOOL    return_path_remove     = TRUE;
1175 int     rewrite_existflags     = 0;
1176 uschar *rfc1413_hosts          = US"@[]";
1177 int     rfc1413_query_timeout  = 0;
1178 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1179 uid_t   root_gid               = ROOT_GID;
1180 uid_t   root_uid               = ROOT_UID;
1181
1182 router_instance  *routers  = NULL;
1183 router_instance  router_defaults = {
1184     .next =                     NULL,
1185     .name =                     NULL,
1186     .info =                     NULL,
1187     .options_block =            NULL,
1188     .driver_name =              NULL,
1189
1190     .address_data =             NULL,
1191 #ifdef EXPERIMENTAL_BRIGHTMAIL
1192     .bmi_rule =                 NULL,
1193 #endif
1194     .cannot_route_message =     NULL,
1195     .condition =                NULL,
1196     .current_directory =        NULL,
1197     .debug_string =             NULL,
1198     .domains =                  NULL,
1199     .errors_to =                NULL,
1200     .expand_gid =               NULL,
1201     .expand_uid =               NULL,
1202     .expand_more =              NULL,
1203     .expand_unseen =            NULL,
1204     .extra_headers =            NULL,
1205     .fallback_hosts =           NULL,
1206     .home_directory =           NULL,
1207     .ignore_target_hosts =      NULL,
1208     .local_parts =              NULL,
1209     .pass_router_name =         NULL,
1210     .prefix =                   NULL,
1211     .redirect_router_name =     NULL,
1212     .remove_headers =           NULL,
1213     .require_files =            NULL,
1214     .router_home_directory =    NULL,
1215     .self =                     US"freeze",
1216     .senders =                  NULL,
1217     .suffix =                   NULL,
1218     .translate_ip_address =     NULL,
1219     .transport_name =           NULL,
1220
1221     .address_test =             TRUE,
1222 #ifdef EXPERIMENTAL_BRIGHTMAIL
1223     .bmi_deliver_alternate =    FALSE,
1224     .bmi_deliver_default =      FALSE,
1225     .bmi_dont_deliver =         FALSE,
1226 #endif
1227     .expn =                     TRUE,
1228     .caseful_local_part =       FALSE,
1229     .check_local_user =         FALSE,
1230     .disable_logging =          FALSE,
1231     .fail_verify_recipient =    FALSE,
1232     .fail_verify_sender =       FALSE,
1233     .gid_set =                  FALSE,
1234     .initgroups =               FALSE,
1235     .log_as_local =             TRUE_UNSET,
1236     .more =                     TRUE,
1237     .pass_on_timeout =          FALSE,
1238     .prefix_optional =          FALSE,
1239     .repeat_use =               TRUE,
1240     .retry_use_local_part =     TRUE_UNSET,
1241     .same_domain_copy_routing = FALSE,
1242     .self_rewrite =             FALSE,
1243     .suffix_optional =          FALSE,
1244     .verify_only =              FALSE,
1245     .verify_recipient =         TRUE,
1246     .verify_sender =            TRUE,
1247     .uid_set =                  FALSE,
1248     .unseen =                   FALSE,
1249     .dsn_lasthop =              FALSE,
1250
1251     .self_code =                self_freeze,
1252     .uid =                      (uid_t)(-1),
1253     .gid =                      (gid_t)(-1),
1254
1255     .fallback_hostlist =        NULL,
1256     .transport =                NULL,
1257     .pass_router =              NULL,
1258     .redirect_router =          NULL,
1259
1260     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1261 };
1262
1263 uschar *router_name            = NULL;
1264
1265 ip_address_item *running_interfaces = NULL;
1266 BOOL    running_in_test_harness = FALSE;
1267
1268 /* This is a weird one. The following string gets patched in the binary by the
1269 script that sets up a copy of Exim for running in the test harness. It seems
1270 that compilers are now clever, and share constant strings if they can.
1271 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1272 make use of the end of this string in order to save space. So the patching then
1273 wrecks this. We defeat this optimization by adding some additional characters
1274 onto the end of the string. */
1275
1276 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1277
1278 int     runrc                  = 0;
1279
1280 uschar *search_error_message   = NULL;
1281 BOOL    search_find_defer      = FALSE;
1282 uschar *self_hostname          = NULL;
1283 uschar *sender_address         = NULL;
1284 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1285 uschar *sender_address_data    = NULL;
1286 BOOL    sender_address_forced  = FALSE;
1287 uschar *sender_address_unrewritten = NULL;
1288 uschar *sender_data            = NULL;
1289 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1290 uschar *sender_fullhost        = NULL;
1291 BOOL    sender_helo_dnssec     = FALSE;
1292 uschar *sender_helo_name       = NULL;
1293 uschar **sender_host_aliases   = &no_aliases;
1294 uschar *sender_host_address    = NULL;
1295 uschar *sender_host_authenticated = NULL;
1296 uschar *sender_host_auth_pubname  = NULL;
1297 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1298 BOOL    sender_host_dnssec     = FALSE;
1299 uschar *sender_host_name       = NULL;
1300 int     sender_host_port       = 0;
1301 BOOL    sender_host_notsocket  = FALSE;
1302 BOOL    sender_host_unknown    = FALSE;
1303 uschar *sender_ident           = NULL;
1304 BOOL    sender_local           = FALSE;
1305 BOOL    sender_name_forced     = FALSE;
1306 uschar *sender_rate            = NULL;
1307 uschar *sender_rate_limit      = NULL;
1308 uschar *sender_rate_period     = NULL;
1309 uschar *sender_rcvhost         = NULL;
1310 BOOL    sender_set_untrusted   = FALSE;
1311 uschar *sender_unqualified_hosts = NULL;
1312 uschar *sender_verify_failure = NULL;
1313 address_item *sender_verified_list  = NULL;
1314 address_item *sender_verified_failed = NULL;
1315 int     sender_verified_rc     = -1;
1316 BOOL    sender_verified_responded = FALSE;
1317 uschar *sending_ip_address     = NULL;
1318 int     sending_port           = -1;
1319 SIGNAL_BOOL sigalrm_seen       = FALSE;
1320 uschar **sighup_argv           = NULL;
1321 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1322 int     smtp_accept_count      = 0;
1323 BOOL    smtp_accept_keepalive  = TRUE;
1324 int     smtp_accept_max        = 20;
1325 int     smtp_accept_max_nonmail= 10;
1326 uschar *smtp_accept_max_nonmail_hosts = US"*";
1327 int     smtp_accept_max_per_connection = 1000;
1328 uschar *smtp_accept_max_per_host = NULL;
1329 int     smtp_accept_queue      = 0;
1330 int     smtp_accept_queue_per_connection = 10;
1331 int     smtp_accept_reserve    = 0;
1332 uschar *smtp_active_hostname   = NULL;
1333 BOOL    smtp_authenticated     = FALSE;
1334 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1335                              "Exim $version_number $tod_full"
1336                              "\0<---------------Space to patch smtp_banner->";
1337 BOOL    smtp_batched_input     = FALSE;
1338 BOOL    smtp_check_spool_space = TRUE;
1339 int     smtp_ch_index          = 0;
1340 uschar *smtp_cmd_argument      = NULL;
1341 uschar *smtp_cmd_buffer        = NULL;
1342 struct timeval smtp_connection_start  = {0,0};
1343 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1344 int     smtp_connect_backlog   = 20;
1345 double  smtp_delay_mail        = 0.0;
1346 double  smtp_delay_rcpt        = 0.0;
1347 BOOL    smtp_enforce_sync      = TRUE;
1348 FILE   *smtp_in                = NULL;
1349 BOOL    smtp_input             = FALSE;
1350 int     smtp_load_reserve      = -1;
1351 int     smtp_mailcmd_count     = 0;
1352 FILE   *smtp_out               = NULL;
1353 uschar *smtp_etrn_command      = NULL;
1354 BOOL    smtp_etrn_serialize    = TRUE;
1355 int     smtp_max_synprot_errors= 3;
1356 int     smtp_max_unknown_commands = 3;
1357 uschar *smtp_notquit_reason    = NULL;
1358 uschar *smtp_ratelimit_hosts   = NULL;
1359 uschar *smtp_ratelimit_mail    = NULL;
1360 uschar *smtp_ratelimit_rcpt    = NULL;
1361 uschar *smtp_read_error        = US"";
1362 int     smtp_receive_timeout   = 5*60;
1363 uschar *smtp_receive_timeout_s = NULL;
1364 uschar *smtp_reserve_hosts     = NULL;
1365 BOOL    smtp_return_error_details = FALSE;
1366 int     smtp_rlm_base          = 0;
1367 double  smtp_rlm_factor        = 0.0;
1368 int     smtp_rlm_limit         = 0;
1369 int     smtp_rlm_threshold     = INT_MAX;
1370 int     smtp_rlr_base          = 0;
1371 double  smtp_rlr_factor        = 0.0;
1372 int     smtp_rlr_limit         = 0;
1373 int     smtp_rlr_threshold     = INT_MAX;
1374 unsigned smtp_peer_options     = 0;
1375 unsigned smtp_peer_options_wrap= 0;
1376 #ifdef SUPPORT_I18N
1377 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1378 #endif
1379
1380 #ifdef WITH_CONTENT_SCAN
1381 uschar *spamd_address          = US"127.0.0.1 783";
1382 uschar *spam_bar               = NULL;
1383 uschar *spam_report            = NULL;
1384 uschar *spam_action            = NULL;
1385 uschar *spam_score             = NULL;
1386 uschar *spam_score_int         = NULL;
1387 #endif
1388 #ifdef SUPPORT_SPF
1389 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1390 uschar *spf_header_comment     = NULL;
1391 uschar *spf_received           = NULL;
1392 uschar *spf_result             = NULL;
1393 BOOL    spf_result_guessed     = FALSE;
1394 uschar *spf_smtp_comment       = NULL;
1395 #endif
1396
1397 BOOL    split_spool_directory  = FALSE;
1398 uschar *spool_directory        = US SPOOL_DIRECTORY
1399                            "\0<--------------Space to patch spool_directory->";
1400 BOOL    spool_file_wireformat  = FALSE;
1401 BOOL    spool_wireformat       = FALSE;
1402 #ifdef EXPERIMENTAL_SRS
1403 uschar *srs_config             = NULL;
1404 uschar *srs_db_address         = NULL;
1405 uschar *srs_db_key             = NULL;
1406 int     srs_hashlength         = 6;
1407 int     srs_hashmin            = -1;
1408 int     srs_maxage             = 31;
1409 uschar *srs_orig_recipient     = NULL;
1410 uschar *srs_orig_sender        = NULL;
1411 uschar *srs_recipient          = NULL;
1412 uschar *srs_secrets            = NULL;
1413 uschar *srs_status             = NULL;
1414 BOOL    srs_usehash            = TRUE;
1415 BOOL    srs_usetimestamp       = TRUE;
1416 #endif
1417 BOOL    strict_acl_vars        = FALSE;
1418 int     string_datestamp_offset= -1;
1419 int     string_datestamp_length= 0;
1420 int     string_datestamp_type  = -1;
1421 BOOL    strip_excess_angle_brackets = FALSE;
1422 BOOL    strip_trailing_dot     = FALSE;
1423 uschar *submission_domain      = NULL;
1424 BOOL    submission_mode        = FALSE;
1425 uschar *submission_name        = NULL;
1426 BOOL    suppress_local_fixups  = FALSE;
1427 BOOL    suppress_local_fixups_default = FALSE;
1428 BOOL    synchronous_delivery   = FALSE;
1429 BOOL    syslog_duplication     = TRUE;
1430 int     syslog_facility        = LOG_MAIL;
1431 BOOL    syslog_pid             = TRUE;
1432 uschar *syslog_processname     = US"exim";
1433 BOOL    syslog_timestamp       = TRUE;
1434 uschar *system_filter          = NULL;
1435
1436 uschar *system_filter_directory_transport = NULL;
1437 uschar *system_filter_file_transport = NULL;
1438 uschar *system_filter_pipe_transport = NULL;
1439 uschar *system_filter_reply_transport = NULL;
1440
1441 gid_t   system_filter_gid      = 0;
1442 BOOL    system_filter_gid_set  = FALSE;
1443 uid_t   system_filter_uid      = (uid_t)-1;
1444 BOOL    system_filter_uid_set  = FALSE;
1445 BOOL    system_filtering       = FALSE;
1446
1447 BOOL    tcp_fastopen_ok        = FALSE;
1448 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1449 BOOL    tcp_in_fastopen        = FALSE;
1450 BOOL    tcp_in_fastopen_logged = FALSE;
1451 BOOL    tcp_nodelay            = TRUE;
1452 int     tcp_out_fastopen       = 0;
1453 BOOL    tcp_out_fastopen_logged= FALSE;
1454 #ifdef USE_TCP_WRAPPERS
1455 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1456 #endif
1457 int     test_harness_load_avg  = 0;
1458 int     thismessage_size_limit = 0;
1459 int     timeout_frozen_after   = 0;
1460 BOOL    timestamps_utc         = FALSE;
1461
1462 transport_instance  *transports = NULL;
1463
1464 transport_instance  transport_defaults = {
1465     .next =                     NULL,
1466     .name =                     NULL,
1467     .info =                     NULL,
1468     .options_block =            NULL,
1469     .driver_name =              NULL,
1470     .setup =                    NULL,
1471     .batch_max =                1,
1472     .batch_id =                 NULL,
1473     .home_dir =                 NULL,
1474     .current_dir =              NULL,
1475     .expand_multi_domain =      NULL,
1476     .multi_domain =             TRUE,
1477     .overrides_hosts =          FALSE,
1478     .max_addresses =            100,
1479     .connection_max_messages =  500,
1480     .deliver_as_creator =       FALSE,
1481     .disable_logging =          FALSE,
1482     .initgroups =               FALSE,
1483     .uid_set =                  FALSE,
1484     .gid_set =                  FALSE,
1485     .uid =                      (uid_t)(-1),
1486     .gid =                      (gid_t)(-1),
1487     .expand_uid =               NULL,
1488     .expand_gid =               NULL,
1489     .warn_message =             NULL,
1490     .shadow =                   NULL,
1491     .shadow_condition =         NULL,
1492     .filter_command =           NULL,
1493     .add_headers =              NULL,
1494     .remove_headers =           NULL,
1495     .return_path =              NULL,
1496     .debug_string =             NULL,
1497     .max_parallel =             NULL,
1498     .message_size_limit =       NULL,
1499     .headers_rewrite =          NULL,
1500     .rewrite_rules =            NULL,
1501     .rewrite_existflags =       0,
1502     .filter_timeout =           300,
1503     .body_only =                FALSE,
1504     .delivery_date_add =        FALSE,
1505     .envelope_to_add =          FALSE,
1506     .headers_only =             FALSE,
1507     .rcpt_include_affixes =     FALSE,
1508     .return_path_add =          FALSE,
1509     .return_output =            FALSE,
1510     .return_fail_output =       FALSE,
1511     .log_output =               FALSE,
1512     .log_fail_output =          FALSE,
1513     .log_defer_output =         FALSE,
1514     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1515                                                  1 nor 0 so can detect unset */
1516 #ifndef DISABLE_EVENT
1517    .event_action =              NULL
1518 #endif
1519 };
1520
1521 int     transport_count;
1522 uschar *transport_name          = NULL;
1523 int     transport_newlines;
1524 const uschar **transport_filter_argv  = NULL;
1525 int     transport_filter_timeout;
1526 BOOL    transport_filter_timed_out = FALSE;
1527 int     transport_write_timeout= 0;
1528
1529 tree_node  *tree_dns_fails     = NULL;
1530 tree_node  *tree_duplicates    = NULL;
1531 tree_node  *tree_nonrecipients = NULL;
1532 tree_node  *tree_unusable      = NULL;
1533
1534 BOOL    trusted_caller         = FALSE;
1535 BOOL    trusted_config         = TRUE;
1536 gid_t  *trusted_groups         = NULL;
1537 uid_t  *trusted_users          = NULL;
1538 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1539
1540 uschar *unknown_login          = NULL;
1541 uschar *unknown_username       = NULL;
1542 uschar *untrusted_set_sender   = NULL;
1543
1544 /*  A regex for matching a "From_" line in an incoming message, in the form
1545
1546     From ph10 Fri Jan  5 12:35 GMT 1996
1547
1548 which  the "mail" commands send to the MTA (undocumented, of course), or in
1549 the  form
1550
1551     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1552
1553 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1554 Because  of variations in time formats, just match up to the minutes. That
1555 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1556 so  just require one digit for hours and minutes. The weekday is also absent
1557 in  some forms. */
1558
1559 uschar *uucp_from_pattern      = US
1560    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1561    "(?:"                                          /* Non-extracting bracket */
1562    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1563    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1564    ")"                                            /* End alternation */
1565    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1566
1567 uschar *uucp_from_sender       = US"$1";
1568
1569 uschar *verify_mode            = NULL;
1570 uschar *version_copyright      =
1571  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1572    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1573 uschar *version_date           = US"?";
1574 uschar *version_cnumber        = US"????";
1575 uschar *version_string         = US"?";
1576
1577 uschar *warn_message_file      = NULL;
1578 int     warning_count          = 0;
1579 uschar *warnmsg_delay          = NULL;
1580 uschar *warnmsg_recipients     = NULL;
1581 BOOL    write_rejectlog        = TRUE;
1582
1583
1584 /*  End of globals.c */