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 auth_instance  *auths          = NULL;
 438 uschar *auth_advertise_hosts   = US"*";
 439 auth_instance auth_defaults    = {
 440     .next =             NULL,
 441     .name =             NULL,
 442     .info =             NULL,
 443     .options_block =    NULL,
 444     .driver_name =      NULL,
 445     .advertise_condition = NULL,
 446     .client_condition = NULL,
 447     .public_name =      NULL,
 448     .set_id =           NULL,
 449     .set_client_id =    NULL,
 450     .mail_auth_condition = NULL,
 451     .server_debug_string = NULL,
 452     .server_condition = NULL,
 453     .client =           FALSE,
 454     .server =           FALSE,
 455     .advertised =       FALSE
 456 };
 457
 458 uschar *auth_defer_msg         = US"reason not recorded";
 459 uschar *auth_defer_user_msg    = US"";
 460 uschar *auth_vars[AUTH_VARS];
 461 int     auto_thaw              = 0;
 462 #ifdef WITH_CONTENT_SCAN
 463 BOOL    av_failed              = FALSE;
 464 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 465 #endif
 466
 467 BOOL    background_daemon      = TRUE;
 468
 469 #if BASE_62 == 62
 470 uschar *base62_chars=
 471     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 472 #else
 473 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 474 #endif
 475
 476 uschar *bi_command             = NULL;
 477 uschar *big_buffer             = NULL;
 478 int     big_buffer_size        = BIG_BUFFER_SIZE;
 479 #ifdef EXPERIMENTAL_BRIGHTMAIL
 480 uschar *bmi_alt_location       = NULL;
 481 uschar *bmi_base64_tracker_verdict = NULL;
 482 uschar *bmi_base64_verdict     = NULL;
 483 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 484 int     bmi_deliver            = 1;
 485 int     bmi_run                = 0;
 486 uschar *bmi_verdicts           = NULL;
 487 #endif
 488 int     bsmtp_transaction_linecount = 0;
 489 int     body_8bitmime          = 0;
 490 int     body_linecount         = 0;
 491 int     body_zerocount         = 0;
 492 uschar *bounce_message_file    = NULL;
 493 uschar *bounce_message_text    = NULL;
 494 uschar *bounce_recipient       = NULL;
 495 BOOL    bounce_return_body     = TRUE;
 496 int     bounce_return_linesize_limit = 998;
 497 BOOL    bounce_return_message  = TRUE;
 498 int     bounce_return_size_limit = 100*1024;
 499 uschar *bounce_sender_authentication = NULL;
 500
 501 uschar *callout_address        = NULL;
 502 int     callout_cache_domain_positive_expire = 7*24*60*60;
 503 int     callout_cache_domain_negative_expire = 3*60*60;
 504 int     callout_cache_positive_expire = 24*60*60;
 505 int     callout_cache_negative_expire = 2*60*60;
 506 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 507 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 508 int     check_log_inodes       = 100;
 509 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 510 BOOL    check_rfc2047_length   = TRUE;
 511 int     check_spool_inodes     = 100;
 512 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 513
 514 uschar *chunking_advertise_hosts = US"*";
 515 unsigned chunking_datasize     = 0;
 516 unsigned chunking_data_left    = 0;
 517 BOOL    chunking_offered       = FALSE;
 518 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 519 const pcre *regex_CHUNKING     = NULL;
 520
 521 uschar *client_authenticator   = NULL;
 522 uschar *client_authenticated_id = NULL;
 523 uschar *client_authenticated_sender = NULL;
 524 int     clmacro_count          = 0;
 525 uschar *clmacros[MAX_CLMACROS];
 526 BOOL    commandline_checks_require_admin = FALSE;
 527 BOOL    config_changed         = FALSE;
 528 FILE   *config_file            = NULL;
 529 const uschar *config_filename  = NULL;
 530 int     config_lineno          = 0;
 531 #ifdef CONFIGURE_GROUP
 532 gid_t   config_gid             = CONFIGURE_GROUP;
 533 #else
 534 gid_t   config_gid             = 0;
 535 #endif
 536 uschar *config_main_filelist   = US CONFIGURE_FILE
 537                          "\0<-----------Space to patch configure_filename->";
 538 uschar *config_main_filename   = NULL;
 539 uschar *config_main_directory  = NULL;
 540
 541 #ifdef CONFIGURE_OWNER
 542 uid_t   config_uid             = CONFIGURE_OWNER;
 543 #else
 544 uid_t   config_uid             = 0;
 545 #endif
 546
 547 int     connection_max_messages= -1;
 548 uschar *continue_proxy_cipher  = NULL;
 549 uschar *continue_hostname      = NULL;
 550 uschar *continue_host_address  = NULL;
 551 BOOL    continue_more          = FALSE;
 552 int     continue_sequence      = 1;
 553 uschar *continue_transport     = NULL;
 554
 555 uschar *csa_status             = NULL;
 556 cut_t   cutthrough = {
 557   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 558   .delivery =           FALSE,                          /* when to attempt */
 559   .defer_pass =         FALSE,                          /* on defer: spool locally */
 560   .is_tls =             FALSE,                          /* not a TLS conn yet */
 561   .fd =                 -1,                             /* open connection */
 562   .nrcpt =              0,                              /* number of addresses */
 563 };
 564
 565 BOOL    daemon_listen          = FALSE;
 566 uschar *daemon_smtp_port       = US"smtp";
 567 int     daemon_startup_retries = 9;
 568 int     daemon_startup_sleep   = 30;
 569
 570 #ifdef EXPERIMENTAL_DCC
 571 BOOL    dcc_direct_add_header  = FALSE;
 572 uschar *dcc_header             = NULL;
 573 uschar *dcc_result             = NULL;
 574 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 575 uschar *dccifd_options         = US"header";
 576 #endif
 577
 578 BOOL    debug_daemon           = FALSE;
 579 int     debug_fd               = -1;
 580 FILE   *debug_file             = NULL;
 581 int     debug_notall[]         = {
 582   Di_memory,
 583   -1
 584 };
 585 bit_table debug_options[]      = { /* must be in alphabetical order */
 586   BIT_TABLE(D, acl),
 587   BIT_TABLE(D, all),
 588   BIT_TABLE(D, auth),
 589   BIT_TABLE(D, deliver),
 590   BIT_TABLE(D, dns),
 591   BIT_TABLE(D, dnsbl),
 592   BIT_TABLE(D, exec),
 593   BIT_TABLE(D, expand),
 594   BIT_TABLE(D, filter),
 595   BIT_TABLE(D, hints_lookup),
 596   BIT_TABLE(D, host_lookup),
 597   BIT_TABLE(D, ident),
 598   BIT_TABLE(D, interface),
 599   BIT_TABLE(D, lists),
 600   BIT_TABLE(D, load),
 601   BIT_TABLE(D, local_scan),
 602   BIT_TABLE(D, lookup),
 603   BIT_TABLE(D, memory),
 604   BIT_TABLE(D, pid),
 605   BIT_TABLE(D, process_info),
 606   BIT_TABLE(D, queue_run),
 607   BIT_TABLE(D, receive),
 608   BIT_TABLE(D, resolver),
 609   BIT_TABLE(D, retry),
 610   BIT_TABLE(D, rewrite),
 611   BIT_TABLE(D, route),
 612   BIT_TABLE(D, timestamp),
 613   BIT_TABLE(D, tls),
 614   BIT_TABLE(D, transport),
 615   BIT_TABLE(D, uid),
 616   BIT_TABLE(D, verify),
 617 };
 618 int     debug_options_count    = nelem(debug_options);
 619
 620 unsigned int debug_selector    = 0;
 621 BOOL    debug_store            = FALSE;
 622 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 623 uschar *delay_warning_condition=
 624   US"${if or {"
 625             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 626             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 627             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 628             "} {no}{yes}}";
 629 BOOL    delivery_date_remove   = TRUE;
 630 uschar *deliver_address_data   = NULL;
 631 int     deliver_datafile       = -1;
 632 const uschar *deliver_domain   = NULL;
 633 uschar *deliver_domain_data    = NULL;
 634 const uschar *deliver_domain_orig = NULL;
 635 const uschar *deliver_domain_parent = NULL;
 636 BOOL    deliver_drop_privilege = FALSE;
 637 BOOL    deliver_firsttime      = FALSE;
 638 BOOL    deliver_force          = FALSE;
 639 BOOL    deliver_freeze         = FALSE;
 640 time_t  deliver_frozen_at      = 0;
 641 uschar *deliver_home           = NULL;
 642 const uschar *deliver_host     = NULL;
 643 const uschar *deliver_host_address = NULL;
 644 int     deliver_host_port      = 0;
 645 uschar *deliver_in_buffer      = NULL;
 646 ino_t   deliver_inode          = 0;
 647 uschar *deliver_localpart      = NULL;
 648 uschar *deliver_localpart_data = NULL;
 649 uschar *deliver_localpart_orig = NULL;
 650 uschar *deliver_localpart_parent = NULL;
 651 uschar *deliver_localpart_prefix = NULL;
 652 uschar *deliver_localpart_suffix = NULL;
 653 BOOL    deliver_force_thaw     = FALSE;
 654 BOOL    deliver_manual_thaw    = FALSE;
 655 uschar *deliver_out_buffer     = NULL;
 656 int     deliver_queue_load_max = -1;
 657 address_item  *deliver_recipients = NULL;
 658 uschar *deliver_selectstring   = NULL;
 659 BOOL    deliver_selectstring_regex = FALSE;
 660 uschar *deliver_selectstring_sender = NULL;
 661 BOOL    deliver_selectstring_sender_regex = FALSE;
 662 BOOL    disable_callout_flush  = FALSE;
 663 BOOL    disable_delay_flush    = FALSE;
 664 #ifdef ENABLE_DISABLE_FSYNC
 665 BOOL    disable_fsync          = FALSE;
 666 #endif
 667 BOOL    disable_ipv6           = FALSE;
 668 BOOL    disable_logging        = FALSE;
 669
 670 #ifndef DISABLE_DKIM
 671 BOOL    dkim_collect_input       = FALSE;
 672 uschar *dkim_cur_signer          = NULL;
 673 BOOL    dkim_disable_verify      = FALSE;
 674 int     dkim_key_length          = 0;
 675 uschar *dkim_signers             = NULL;
 676 uschar *dkim_signing_domain      = NULL;
 677 uschar *dkim_signing_selector    = NULL;
 678 uschar *dkim_verify_overall      = NULL;
 679 uschar *dkim_verify_signers      = US"$dkim_signers";
 680 uschar *dkim_verify_status       = NULL;
 681 uschar *dkim_verify_reason       = NULL;
 682 #endif
 683 #ifdef EXPERIMENTAL_DMARC
 684 BOOL    dmarc_has_been_checked  = FALSE;
 685 uschar *dmarc_domain_policy     = NULL;
 686 uschar *dmarc_forensic_sender   = NULL;
 687 uschar *dmarc_history_file      = NULL;
 688 uschar *dmarc_status            = NULL;
 689 uschar *dmarc_status_text       = NULL;
 690 uschar *dmarc_tld_file          = NULL;
 691 uschar *dmarc_used_domain       = NULL;
 692 BOOL    dmarc_disable_verify    = FALSE;
 693 BOOL    dmarc_enable_forensic   = FALSE;
 694 #endif
 695
 696 uschar *dns_again_means_nonexist = NULL;
 697 int     dns_csa_search_limit   = 5;
 698 BOOL    dns_csa_use_reverse    = TRUE;
 699 #ifdef SUPPORT_DANE
 700 int     dns_dane_ok            = -1;
 701 #endif
 702 uschar *dns_ipv4_lookup        = NULL;
 703 int     dns_retrans            = 0;
 704 int     dns_retry              = 0;
 705 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 706 uschar *dns_trust_aa           = NULL;
 707 int     dns_use_edns0          = -1; /* <0 = not coerced */
 708 uschar *dnslist_domain         = NULL;
 709 uschar *dnslist_matched        = NULL;
 710 uschar *dnslist_text           = NULL;
 711 uschar *dnslist_value          = NULL;
 712 tree_node *domainlist_anchor   = NULL;
 713 int     domainlist_count       = 0;
 714 BOOL    dont_deliver           = FALSE;
 715 BOOL    dot_ends               = TRUE;
 716 BOOL    drop_cr                = FALSE;         /* No longer used */
 717 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 718
 719 BOOL    enable_dollar_recipients = FALSE;
 720 BOOL    envelope_to_remove     = TRUE;
 721 int     errno_quota            = ERRNO_QUOTA;
 722 uschar *errors_copy            = NULL;
 723 int     error_handling         = ERRORS_SENDER;
 724 uschar *errors_reply_to        = NULL;
 725 int     errors_sender_rc       = EXIT_FAILURE;
 726 #ifndef DISABLE_EVENT
 727 uschar *event_action             = NULL;        /* expansion for delivery events */
 728 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 729 int     event_defer_errno        = 0;
 730 const uschar *event_name         = NULL;        /* event name variable */
 731 #endif
 732
 733
 734 gid_t   exim_gid               = EXIM_GID;
 735 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 736 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 737                         "\0<---------------Space to patch exim_path->";
 738 uid_t   exim_uid               = EXIM_UID;
 739 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 740 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 741 int     expand_forbid          = 0;
 742 int     expand_nlength[EXPAND_MAXN+1];
 743 int     expand_nmax            = -1;
 744 uschar *expand_nstring[EXPAND_MAXN+1];
 745 BOOL    expand_string_forcedfail = FALSE;
 746 uschar *expand_string_message;
 747 BOOL    extract_addresses_remove_arguments = TRUE;
 748 uschar *extra_local_interfaces = NULL;
 749
 750 int     fake_response          = OK;
 751 uschar *fake_response_text     = US"Your message has been rejected but is "
 752                                    "being kept for evaluation.\nIf it was a "
 753                                    "legitimate message, it may still be "
 754                                    "delivered to the target recipient(s).";
 755 int     filter_n[FILTER_VARIABLE_COUNT];
 756 BOOL    filter_running         = FALSE;
 757 int     filter_sn[FILTER_VARIABLE_COUNT];
 758 int     filter_test            = FTEST_NONE;
 759 uschar *filter_test_sfile      = NULL;
 760 uschar *filter_test_ufile      = NULL;
 761 uschar *filter_thisaddress     = NULL;
 762 int     finduser_retries       = 0;
 763 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 764 uschar *freeze_tell            = NULL;
 765 uschar *freeze_tell_config     = NULL;
 766 uschar *fudged_queue_times     = US"";
 767
 768 uschar *gecos_name             = NULL;
 769 uschar *gecos_pattern          = NULL;
 770 rewrite_rule  *global_rewrite_rules = NULL;
 771
 772 uschar *headers_charset        = US HEADERS_CHARSET;
 773 int     header_insert_maxlen   = 64 * 1024;
 774 header_line  *header_last      = NULL;
 775 header_line  *header_list      = NULL;
 776 int     header_maxsize         = HEADER_MAXSIZE;
 777 int     header_line_maxsize    = 0;
 778
 779 header_name header_names[] = {
 780   /* name               len     allow_resent    htype */
 781   { US"bcc",            3,      TRUE,           htype_bcc },
 782   { US"cc",             2,      TRUE,           htype_cc },
 783   { US"date",           4,      TRUE,           htype_date },
 784   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 785   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 786   { US"from",           4,      TRUE,           htype_from },
 787   { US"message-id",    10,      TRUE,           htype_id },
 788   { US"received",       8,      FALSE,          htype_received },
 789   { US"reply-to",       8,      FALSE,          htype_reply_to },
 790   { US"return-path",   11,      FALSE,          htype_return_path },
 791   { US"sender",         6,      TRUE,           htype_sender },
 792   { US"subject",        7,      FALSE,          htype_subject },
 793   { US"to",             2,      TRUE,           htype_to }
 794 };
 795
 796 int header_names_size          = nelem(header_names);
 797
 798 BOOL    header_rewritten       = FALSE;
 799 uschar *helo_accept_junk_hosts = NULL;
 800 uschar *helo_allow_chars       = US"";
 801 uschar *helo_lookup_domains    = US"@ : @[]";
 802 uschar *helo_try_verify_hosts  = NULL;
 803 BOOL    helo_verified          = FALSE;
 804 BOOL    helo_verify_failed     = FALSE;
 805 uschar *helo_verify_hosts      = NULL;
 806 const uschar *hex_digits       = CUS"0123456789abcdef";
 807 uschar *hold_domains           = NULL;
 808 BOOL    host_checking          = FALSE;
 809 BOOL    host_checking_callout  = FALSE;
 810 uschar *host_data              = NULL;
 811 BOOL    host_find_failed_syntax= FALSE;
 812 uschar *host_lookup            = NULL;
 813 BOOL    host_lookup_deferred   = FALSE;
 814 BOOL    host_lookup_failed     = FALSE;
 815 uschar *host_lookup_order      = US"bydns:byaddr";
 816 uschar *host_lookup_msg        = US"";
 817 int     host_number            = 0;
 818 uschar *host_number_string     = NULL;
 819 uschar *host_reject_connection = NULL;
 820 tree_node *hostlist_anchor     = NULL;
 821 int     hostlist_count         = 0;
 822 uschar *hosts_treat_as_local   = NULL;
 823 uschar *hosts_connection_nolog = NULL;
 824
 825 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 826 BOOL    ignore_fromline_local  = FALSE;
 827 uschar *ignore_fromline_hosts  = NULL;
 828 BOOL    inetd_wait_mode        = FALSE;
 829 int     inetd_wait_timeout     = -1;
 830 uschar *initial_cwd            = NULL;
 831 uschar *interface_address      = NULL;
 832 int     interface_port         = -1;
 833 BOOL    is_inetd               = FALSE;
 834 uschar *iterate_item           = NULL;
 835
 836 int     journal_fd             = -1;
 837
 838 uschar *keep_environment       = NULL;
 839
 840 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 841
 842 uschar *eldap_dn               = NULL;
 843 int     load_average           = -2;
 844 BOOL    local_error_message    = FALSE;
 845 BOOL    local_from_check       = TRUE;
 846 uschar *local_from_prefix      = NULL;
 847 uschar *local_from_suffix      = NULL;
 848
 849 #if HAVE_IPV6
 850 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 851 #else
 852 uschar *local_interfaces       = US"0.0.0.0";
 853 #endif
 854
 855 uschar *local_scan_data        = NULL;
 856 int     local_scan_timeout     = 5*60;
 857 BOOL    local_sender_retain    = FALSE;
 858 gid_t   local_user_gid         = (gid_t)(-1);
 859 uid_t   local_user_uid         = (uid_t)(-1);
 860
 861 tree_node *localpartlist_anchor= NULL;
 862 int     localpartlist_count    = 0;
 863 uschar *log_buffer             = NULL;
 864
 865 int     log_default[]          = { /* for initializing log_selector */
 866   Li_acl_warn_skipped,
 867   Li_connection_reject,
 868   Li_delay_delivery,
 869   Li_dkim,
 870   Li_dnslist_defer,
 871   Li_etrn,
 872   Li_host_lookup_failed,
 873   Li_lost_incoming_connection,
 874   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 875   Li_queue_run,
 876   Li_rejected_header,
 877   Li_retry_defer,
 878   Li_sender_verify_fail,
 879   Li_size_reject,
 880   Li_skip_delivery,
 881   Li_smtp_confirmation,
 882   Li_tls_certificate_verified,
 883   Li_tls_cipher,
 884   -1
 885 };
 886
 887 uschar *log_file_path          = US LOG_FILE_PATH
 888                            "\0<--------------Space to patch log_file_path->";
 889
 890 int     log_notall[]           = {
 891   -1
 892 };
 893 bit_table log_options[]        = { /* must be in alphabetical order */
 894   BIT_TABLE(L, 8bitmime),
 895   BIT_TABLE(L, acl_warn_skipped),
 896   BIT_TABLE(L, address_rewrite),
 897   BIT_TABLE(L, all),
 898   BIT_TABLE(L, all_parents),
 899   BIT_TABLE(L, arguments),
 900   BIT_TABLE(L, connection_reject),
 901   BIT_TABLE(L, delay_delivery),
 902   BIT_TABLE(L, deliver_time),
 903   BIT_TABLE(L, delivery_size),
 904 #ifndef DISABLE_DKIM
 905   BIT_TABLE(L, dkim),
 906   BIT_TABLE(L, dkim_verbose),
 907 #endif
 908   BIT_TABLE(L, dnslist_defer),
 909   BIT_TABLE(L, dnssec),
 910   BIT_TABLE(L, etrn),
 911   BIT_TABLE(L, host_lookup_failed),
 912   BIT_TABLE(L, ident_timeout),
 913   BIT_TABLE(L, incoming_interface),
 914   BIT_TABLE(L, incoming_port),
 915   BIT_TABLE(L, lost_incoming_connection),
 916   BIT_TABLE(L, millisec),
 917   BIT_TABLE(L, outgoing_interface),
 918   BIT_TABLE(L, outgoing_port),
 919   BIT_TABLE(L, pid),
 920 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 921   BIT_TABLE(L, proxy),
 922 #endif
 923   BIT_TABLE(L, queue_run),
 924   BIT_TABLE(L, queue_time),
 925   BIT_TABLE(L, queue_time_overall),
 926   BIT_TABLE(L, receive_time),
 927   BIT_TABLE(L, received_recipients),
 928   BIT_TABLE(L, received_sender),
 929   BIT_TABLE(L, rejected_header),
 930   { US"rejected_headers", Li_rejected_header },
 931   BIT_TABLE(L, retry_defer),
 932   BIT_TABLE(L, return_path_on_delivery),
 933   BIT_TABLE(L, sender_on_delivery),
 934   BIT_TABLE(L, sender_verify_fail),
 935   BIT_TABLE(L, size_reject),
 936   BIT_TABLE(L, skip_delivery),
 937   BIT_TABLE(L, smtp_confirmation),
 938   BIT_TABLE(L, smtp_connection),
 939   BIT_TABLE(L, smtp_incomplete_transaction),
 940   BIT_TABLE(L, smtp_mailauth),
 941   BIT_TABLE(L, smtp_no_mail),
 942   BIT_TABLE(L, smtp_protocol_error),
 943   BIT_TABLE(L, smtp_syntax_error),
 944   BIT_TABLE(L, subject),
 945   BIT_TABLE(L, tls_certificate_verified),
 946   BIT_TABLE(L, tls_cipher),
 947   BIT_TABLE(L, tls_peerdn),
 948   BIT_TABLE(L, tls_sni),
 949   BIT_TABLE(L, unknown_in_list),
 950 };
 951 int     log_options_count      = nelem(log_options);
 952
 953 int     log_reject_target      = 0;
 954 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 955 uschar *log_selector_string    = NULL;
 956 FILE   *log_stderr             = NULL;
 957 BOOL    log_testing_mode       = FALSE;
 958 BOOL    log_timezone           = FALSE;
 959 uschar *login_sender_address   = NULL;
 960 uschar *lookup_dnssec_authenticated = NULL;
 961 int     lookup_open_max        = 25;
 962 uschar *lookup_value           = NULL;
 963
 964 macro_item *macros_user        = NULL;
 965 uschar *mailstore_basename     = NULL;
 966 #ifdef WITH_CONTENT_SCAN
 967 uschar *malware_name           = NULL;  /* Virus Name */
 968 #endif
 969 int     max_received_linelength= 0;
 970 int     max_username_length    = 0;
 971 int     message_age            = 0;
 972 uschar *message_body           = NULL;
 973 uschar *message_body_end       = NULL;
 974 BOOL    message_body_newlines  = FALSE;
 975 int     message_body_size      = 0;
 976 int     message_body_visible   = 500;
 977 int     message_ended          = END_NOTSTARTED;
 978 uschar *message_headers        = NULL;
 979 uschar *message_id;
 980 uschar *message_id_domain      = NULL;
 981 uschar *message_id_text        = NULL;
 982 struct timeval message_id_tv   = { 0, 0 };
 983 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 984 uschar *message_id_external;
 985 int     message_linecount      = 0;
 986 BOOL    message_logs           = TRUE;
 987 int     message_size           = 0;
 988 uschar *message_size_limit     = US"50M";
 989 #ifdef SUPPORT_I18N
 990 BOOL    message_smtputf8       = FALSE;
 991 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 992 #endif
 993 uschar  message_subdir[2]      = { 0, 0 };
 994 uschar *message_reference      = NULL;
 995
 996 /* MIME ACL expandables */
 997 #ifdef WITH_CONTENT_SCAN
 998 int     mime_anomaly_level     = 0;
 999 const uschar *mime_anomaly_text      = NULL;
1000 uschar *mime_boundary          = NULL;
1001 uschar *mime_charset           = NULL;
1002 uschar *mime_content_description = NULL;
1003 uschar *mime_content_disposition = NULL;
1004 uschar *mime_content_id        = NULL;
1005 unsigned int mime_content_size = 0;
1006 uschar *mime_content_transfer_encoding = NULL;
1007 uschar *mime_content_type      = NULL;
1008 uschar *mime_decoded_filename  = NULL;
1009 uschar *mime_filename          = NULL;
1010 int     mime_is_multipart      = 0;
1011 int     mime_is_coverletter    = 0;
1012 int     mime_is_rfc822         = 0;
1013 int     mime_part_count        = -1;
1014 #endif
1015
1016 BOOL    mua_wrapper            = FALSE;
1017
1018 uid_t  *never_users            = NULL;
1019 #ifdef WITH_CONTENT_SCAN
1020 BOOL    no_mbox_unspool        = FALSE;
1021 #endif
1022 BOOL    no_multiline_responses = FALSE;
1023
1024 const int on                   = 1;     /* for setsockopt */
1025 const int off                  = 0;
1026
1027 uid_t   original_euid;
1028 gid_t   originator_gid;
1029 uschar *originator_login       = NULL;
1030 uschar *originator_name        = NULL;
1031 uid_t   originator_uid;
1032 uschar *override_local_interfaces = NULL;
1033 uschar *override_pid_file_path = NULL;
1034
1035 BOOL    parse_allow_group      = FALSE;
1036 BOOL    parse_found_group      = FALSE;
1037 uschar *percent_hack_domains   = NULL;
1038 uschar *pid_file_path          = US PID_FILE_PATH
1039                            "\0<--------------Space to patch pid_file_path->";
1040 BOOL    pipelining_enable      = TRUE;
1041 uschar *pipelining_advertise_hosts = US"*";
1042 BOOL    preserve_message_logs  = FALSE;
1043 uschar *primary_hostname       = NULL;
1044 BOOL    print_topbitchars      = FALSE;
1045 uschar  process_info[PROCESS_INFO_SIZE];
1046 int     process_info_len       = 0;
1047 uschar *process_log_path       = NULL;
1048 BOOL    prod_requires_admin    = TRUE;
1049
1050 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1051 uschar *hosts_proxy            = US"";
1052 uschar *proxy_external_address = US"";
1053 int     proxy_external_port    = 0;
1054 uschar *proxy_local_address    = US"";
1055 int     proxy_local_port       = 0;
1056 BOOL    proxy_session          = FALSE;
1057 BOOL    proxy_session_failed   = FALSE;
1058 #endif
1059
1060 uschar *prvscheck_address      = NULL;
1061 uschar *prvscheck_keynum       = NULL;
1062 uschar *prvscheck_result       = NULL;
1063
1064
1065 const uschar *qualify_domain_recipient = NULL;
1066 uschar *qualify_domain_sender  = NULL;
1067 BOOL    queue_2stage           = FALSE;
1068 uschar *queue_domains          = NULL;
1069 int     queue_interval         = -1;
1070 BOOL    queue_list_requires_admin = TRUE;
1071 uschar *queue_name             = US"";
1072 BOOL    queue_only             = FALSE;
1073 uschar *queue_only_file        = NULL;
1074 int     queue_only_load        = -1;
1075 BOOL    queue_only_load_latch  = TRUE;
1076 BOOL    queue_only_override    = TRUE;
1077 BOOL    queue_only_policy      = FALSE;
1078 BOOL    queue_run_first_delivery = FALSE;
1079 BOOL    queue_run_force        = FALSE;
1080 BOOL    queue_run_in_order     = FALSE;
1081 BOOL    queue_run_local        = FALSE;
1082 uschar *queue_run_max          = US"5";
1083 pid_t   queue_run_pid          = (pid_t)0;
1084 int     queue_run_pipe         = -1;
1085 BOOL    queue_running          = FALSE;
1086 BOOL    queue_smtp             = FALSE;
1087 uschar *queue_smtp_domains     = NULL;
1088
1089 unsigned int random_seed       = 0;
1090 tree_node *ratelimiters_cmd    = NULL;
1091 tree_node *ratelimiters_conn   = NULL;
1092 tree_node *ratelimiters_mail   = NULL;
1093 uschar *raw_active_hostname    = NULL;
1094 uschar *raw_sender             = NULL;
1095 uschar **raw_recipients        = NULL;
1096 int     raw_recipients_count   = 0;
1097
1098 int     rcpt_count             = 0;
1099 int     rcpt_fail_count        = 0;
1100 int     rcpt_defer_count       = 0;
1101 gid_t   real_gid;
1102 uid_t   real_uid;
1103 BOOL    really_exim            = TRUE;
1104 BOOL    receive_call_bombout   = FALSE;
1105 int     receive_linecount      = 0;
1106 int     receive_messagecount   = 0;
1107 int     receive_timeout        = 0;
1108 int     received_count         = 0;
1109 uschar *received_for           = NULL;
1110
1111 /*  This is the default text for Received headers generated by Exim. The
1112 date  will be automatically added on the end. */
1113
1114 uschar *received_header_text   = US
1115      "Received: "
1116      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1117      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1118      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1119      "by $primary_hostname "
1120      "${if def:received_protocol {with $received_protocol}} "
1121      #ifdef SUPPORT_TLS
1122      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1123      #endif
1124      "(Exim $version_number)\n\t"
1125      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1126      "id $message_exim_id"
1127      "${if def:received_for {\n\tfor $received_for}}"
1128      "\0<---------------Space to patch received_header_text->";
1129
1130 int     received_headers_max   = 30;
1131 uschar *received_protocol      = NULL;
1132 struct timeval received_time   = { 0, 0 };
1133 struct timeval received_time_taken = { 0, 0 };
1134 uschar *recipient_data         = NULL;
1135 uschar *recipient_unqualified_hosts = NULL;
1136 uschar *recipient_verify_failure = NULL;
1137 int     recipients_count       = 0;
1138 BOOL    recipients_discarded   = FALSE;
1139 recipient_item  *recipients_list = NULL;
1140 int     recipients_list_max    = 0;
1141 int     recipients_max         = 0;
1142 BOOL    recipients_max_reject  = FALSE;
1143 const pcre *regex_AUTH         = NULL;
1144 const pcre *regex_check_dns_names = NULL;
1145 const pcre *regex_From         = NULL;
1146 const pcre *regex_IGNOREQUOTA  = NULL;
1147 const pcre *regex_PIPELINING   = NULL;
1148 const pcre *regex_SIZE         = NULL;
1149 const pcre *regex_ismsgid      = NULL;
1150 const pcre *regex_smtp_code    = NULL;
1151 uschar *regex_vars[REGEX_VARS];
1152 #ifdef WHITELIST_D_MACROS
1153 const pcre *regex_whitelisted_macro = NULL;
1154 #endif
1155 #ifdef WITH_CONTENT_SCAN
1156 uschar *regex_match_string     = NULL;
1157 #endif
1158 int     remote_delivery_count  = 0;
1159 int     remote_max_parallel    = 2;
1160 uschar *remote_sort_domains    = NULL;
1161 int     retry_data_expire      = 7*24*60*60;
1162 int     retry_interval_max     = 24*60*60;
1163 int     retry_maximum_timeout  = 0;        /* set from retry config */
1164 retry_config  *retries         = NULL;
1165 uschar *return_path            = NULL;
1166 BOOL    return_path_remove     = TRUE;
1167 int     rewrite_existflags     = 0;
1168 uschar *rfc1413_hosts          = US"@[]";
1169 int     rfc1413_query_timeout  = 0;
1170 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1171 uid_t   root_gid               = ROOT_GID;
1172 uid_t   root_uid               = ROOT_UID;
1173
1174 router_instance  *routers  = NULL;
1175 router_instance  router_defaults = {
1176     .next =                     NULL,
1177     .name =                     NULL,
1178     .info =                     NULL,
1179     .options_block =            NULL,
1180     .driver_name =              NULL,
1181
1182     .address_data =             NULL,
1183 #ifdef EXPERIMENTAL_BRIGHTMAIL
1184     .bmi_rule =                 NULL,
1185 #endif
1186     .cannot_route_message =     NULL,
1187     .condition =                NULL,
1188     .current_directory =        NULL,
1189     .debug_string =             NULL,
1190     .domains =                  NULL,
1191     .errors_to =                NULL,
1192     .expand_gid =               NULL,
1193     .expand_uid =               NULL,
1194     .expand_more =              NULL,
1195     .expand_unseen =            NULL,
1196     .extra_headers =            NULL,
1197     .fallback_hosts =           NULL,
1198     .home_directory =           NULL,
1199     .ignore_target_hosts =      NULL,
1200     .local_parts =              NULL,
1201     .pass_router_name =         NULL,
1202     .prefix =                   NULL,
1203     .redirect_router_name =     NULL,
1204     .remove_headers =           NULL,
1205     .require_files =            NULL,
1206     .router_home_directory =    NULL,
1207     .self =                     US"freeze",
1208     .senders =                  NULL,
1209     .suffix =                   NULL,
1210     .translate_ip_address =     NULL,
1211     .transport_name =           NULL,
1212
1213     .address_test =             TRUE,
1214 #ifdef EXPERIMENTAL_BRIGHTMAIL
1215     .bmi_deliver_alternate =    FALSE,
1216     .bmi_deliver_default =      FALSE,
1217     .bmi_dont_deliver =         FALSE,
1218 #endif
1219     .expn =                     TRUE,
1220     .caseful_local_part =       FALSE,
1221     .check_local_user =         FALSE,
1222     .disable_logging =          FALSE,
1223     .fail_verify_recipient =    FALSE,
1224     .fail_verify_sender =       FALSE,
1225     .gid_set =                  FALSE,
1226     .initgroups =               FALSE,
1227     .log_as_local =             TRUE_UNSET,
1228     .more =                     TRUE,
1229     .pass_on_timeout =          FALSE,
1230     .prefix_optional =          FALSE,
1231     .repeat_use =               TRUE,
1232     .retry_use_local_part =     TRUE_UNSET,
1233     .same_domain_copy_routing = FALSE,
1234     .self_rewrite =             FALSE,
1235     .suffix_optional =          FALSE,
1236     .verify_only =              FALSE,
1237     .verify_recipient =         TRUE,
1238     .verify_sender =            TRUE,
1239     .uid_set =                  FALSE,
1240     .unseen =                   FALSE,
1241     .dsn_lasthop =              FALSE,
1242
1243     .self_code =                self_freeze,
1244     .uid =                      (uid_t)(-1),
1245     .gid =                      (gid_t)(-1),
1246
1247     .fallback_hostlist =        NULL,
1248     .transport =                NULL,
1249     .pass_router =              NULL,
1250     .redirect_router =          NULL,
1251
1252     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1253 };
1254
1255 uschar *router_name            = NULL;
1256
1257 ip_address_item *running_interfaces = NULL;
1258 BOOL    running_in_test_harness = FALSE;
1259
1260 /* This is a weird one. The following string gets patched in the binary by the
1261 script that sets up a copy of Exim for running in the test harness. It seems
1262 that compilers are now clever, and share constant strings if they can.
1263 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1264 make use of the end of this string in order to save space. So the patching then
1265 wrecks this. We defeat this optimization by adding some additional characters
1266 onto the end of the string. */
1267
1268 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1269
1270 int     runrc                  = 0;
1271
1272 uschar *search_error_message   = NULL;
1273 BOOL    search_find_defer      = FALSE;
1274 uschar *self_hostname          = NULL;
1275 uschar *sender_address         = NULL;
1276 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1277 uschar *sender_address_data    = NULL;
1278 BOOL    sender_address_forced  = FALSE;
1279 uschar *sender_address_unrewritten = NULL;
1280 uschar *sender_data            = NULL;
1281 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1282 uschar *sender_fullhost        = NULL;
1283 BOOL    sender_helo_dnssec     = FALSE;
1284 uschar *sender_helo_name       = NULL;
1285 uschar **sender_host_aliases   = &no_aliases;
1286 uschar *sender_host_address    = NULL;
1287 uschar *sender_host_authenticated = NULL;
1288 uschar *sender_host_auth_pubname  = NULL;
1289 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1290 BOOL    sender_host_dnssec     = FALSE;
1291 uschar *sender_host_name       = NULL;
1292 int     sender_host_port       = 0;
1293 BOOL    sender_host_notsocket  = FALSE;
1294 BOOL    sender_host_unknown    = FALSE;
1295 uschar *sender_ident           = NULL;
1296 BOOL    sender_local           = FALSE;
1297 BOOL    sender_name_forced     = FALSE;
1298 uschar *sender_rate            = NULL;
1299 uschar *sender_rate_limit      = NULL;
1300 uschar *sender_rate_period     = NULL;
1301 uschar *sender_rcvhost         = NULL;
1302 BOOL    sender_set_untrusted   = FALSE;
1303 uschar *sender_unqualified_hosts = NULL;
1304 uschar *sender_verify_failure = NULL;
1305 address_item *sender_verified_list  = NULL;
1306 address_item *sender_verified_failed = NULL;
1307 int     sender_verified_rc     = -1;
1308 BOOL    sender_verified_responded = FALSE;
1309 uschar *sending_ip_address     = NULL;
1310 int     sending_port           = -1;
1311 SIGNAL_BOOL sigalrm_seen       = FALSE;
1312 uschar **sighup_argv           = NULL;
1313 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1314 int     smtp_accept_count      = 0;
1315 BOOL    smtp_accept_keepalive  = TRUE;
1316 int     smtp_accept_max        = 20;
1317 int     smtp_accept_max_nonmail= 10;
1318 uschar *smtp_accept_max_nonmail_hosts = US"*";
1319 int     smtp_accept_max_per_connection = 1000;
1320 uschar *smtp_accept_max_per_host = NULL;
1321 int     smtp_accept_queue      = 0;
1322 int     smtp_accept_queue_per_connection = 10;
1323 int     smtp_accept_reserve    = 0;
1324 uschar *smtp_active_hostname   = NULL;
1325 BOOL    smtp_authenticated     = FALSE;
1326 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1327                              "Exim $version_number $tod_full"
1328                              "\0<---------------Space to patch smtp_banner->";
1329 BOOL    smtp_batched_input     = FALSE;
1330 BOOL    smtp_check_spool_space = TRUE;
1331 int     smtp_ch_index          = 0;
1332 uschar *smtp_cmd_argument      = NULL;
1333 uschar *smtp_cmd_buffer        = NULL;
1334 struct timeval smtp_connection_start  = {0,0};
1335 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1336 int     smtp_connect_backlog   = 20;
1337 double  smtp_delay_mail        = 0.0;
1338 double  smtp_delay_rcpt        = 0.0;
1339 BOOL    smtp_enforce_sync      = TRUE;
1340 FILE   *smtp_in                = NULL;
1341 BOOL    smtp_input             = FALSE;
1342 int     smtp_load_reserve      = -1;
1343 int     smtp_mailcmd_count     = 0;
1344 FILE   *smtp_out               = NULL;
1345 uschar *smtp_etrn_command      = NULL;
1346 BOOL    smtp_etrn_serialize    = TRUE;
1347 int     smtp_max_synprot_errors= 3;
1348 int     smtp_max_unknown_commands = 3;
1349 uschar *smtp_notquit_reason    = NULL;
1350 uschar *smtp_ratelimit_hosts   = NULL;
1351 uschar *smtp_ratelimit_mail    = NULL;
1352 uschar *smtp_ratelimit_rcpt    = NULL;
1353 uschar *smtp_read_error        = US"";
1354 int     smtp_receive_timeout   = 5*60;
1355 uschar *smtp_receive_timeout_s = NULL;
1356 uschar *smtp_reserve_hosts     = NULL;
1357 BOOL    smtp_return_error_details = FALSE;
1358 int     smtp_rlm_base          = 0;
1359 double  smtp_rlm_factor        = 0.0;
1360 int     smtp_rlm_limit         = 0;
1361 int     smtp_rlm_threshold     = INT_MAX;
1362 int     smtp_rlr_base          = 0;
1363 double  smtp_rlr_factor        = 0.0;
1364 int     smtp_rlr_limit         = 0;
1365 int     smtp_rlr_threshold     = INT_MAX;
1366 unsigned smtp_peer_options     = 0;
1367 unsigned smtp_peer_options_wrap= 0;
1368 #ifdef SUPPORT_I18N
1369 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1370 #endif
1371
1372 #ifdef WITH_CONTENT_SCAN
1373 uschar *spamd_address          = US"127.0.0.1 783";
1374 uschar *spam_bar               = NULL;
1375 uschar *spam_report            = NULL;
1376 uschar *spam_action            = NULL;
1377 uschar *spam_score             = NULL;
1378 uschar *spam_score_int         = NULL;
1379 #endif
1380 #ifdef SUPPORT_SPF
1381 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1382 uschar *spf_header_comment     = NULL;
1383 uschar *spf_received           = NULL;
1384 uschar *spf_result             = NULL;
1385 uschar *spf_smtp_comment       = NULL;
1386 #endif
1387
1388 BOOL    split_spool_directory  = FALSE;
1389 uschar *spool_directory        = US SPOOL_DIRECTORY
1390                            "\0<--------------Space to patch spool_directory->";
1391 BOOL    spool_file_wireformat  = FALSE;
1392 BOOL    spool_wireformat       = FALSE;
1393 #ifdef EXPERIMENTAL_SRS
1394 uschar *srs_config             = NULL;
1395 uschar *srs_db_address         = NULL;
1396 uschar *srs_db_key             = NULL;
1397 int     srs_hashlength         = 6;
1398 int     srs_hashmin            = -1;
1399 int     srs_maxage             = 31;
1400 uschar *srs_orig_recipient     = NULL;
1401 uschar *srs_orig_sender        = NULL;
1402 uschar *srs_recipient          = NULL;
1403 uschar *srs_secrets            = NULL;
1404 uschar *srs_status             = NULL;
1405 BOOL    srs_usehash            = TRUE;
1406 BOOL    srs_usetimestamp       = TRUE;
1407 #endif
1408 BOOL    strict_acl_vars        = FALSE;
1409 int     string_datestamp_offset= -1;
1410 int     string_datestamp_length= 0;
1411 int     string_datestamp_type  = -1;
1412 BOOL    strip_excess_angle_brackets = FALSE;
1413 BOOL    strip_trailing_dot     = FALSE;
1414 uschar *submission_domain      = NULL;
1415 BOOL    submission_mode        = FALSE;
1416 uschar *submission_name        = NULL;
1417 BOOL    suppress_local_fixups  = FALSE;
1418 BOOL    suppress_local_fixups_default = FALSE;
1419 BOOL    synchronous_delivery   = FALSE;
1420 BOOL    syslog_duplication     = TRUE;
1421 int     syslog_facility        = LOG_MAIL;
1422 BOOL    syslog_pid             = TRUE;
1423 uschar *syslog_processname     = US"exim";
1424 BOOL    syslog_timestamp       = TRUE;
1425 uschar *system_filter          = NULL;
1426
1427 uschar *system_filter_directory_transport = NULL;
1428 uschar *system_filter_file_transport = NULL;
1429 uschar *system_filter_pipe_transport = NULL;
1430 uschar *system_filter_reply_transport = NULL;
1431
1432 gid_t   system_filter_gid      = 0;
1433 BOOL    system_filter_gid_set  = FALSE;
1434 uid_t   system_filter_uid      = (uid_t)-1;
1435 BOOL    system_filter_uid_set  = FALSE;
1436 BOOL    system_filtering       = FALSE;
1437
1438 BOOL    tcp_fastopen_ok        = FALSE;
1439 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1440 BOOL    tcp_in_fastopen        = FALSE;
1441 BOOL    tcp_in_fastopen_logged = FALSE;
1442 BOOL    tcp_nodelay            = TRUE;
1443 int     tcp_out_fastopen       = 0;
1444 BOOL    tcp_out_fastopen_logged= FALSE;
1445 #ifdef USE_TCP_WRAPPERS
1446 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1447 #endif
1448 int     test_harness_load_avg  = 0;
1449 int     thismessage_size_limit = 0;
1450 int     timeout_frozen_after   = 0;
1451 BOOL    timestamps_utc         = FALSE;
1452
1453 transport_instance  *transports = NULL;
1454
1455 transport_instance  transport_defaults = {
1456     .next =                     NULL,
1457     .name =                     NULL,
1458     .info =                     NULL,
1459     .options_block =            NULL,
1460     .driver_name =              NULL,
1461     .setup =                    NULL,
1462     .batch_max =                1,
1463     .batch_id =                 NULL,
1464     .home_dir =                 NULL,
1465     .current_dir =              NULL,
1466     .expand_multi_domain =      NULL,
1467     .multi_domain =             TRUE,
1468     .overrides_hosts =          FALSE,
1469     .max_addresses =            100,
1470     .connection_max_messages =  500,
1471     .deliver_as_creator =       FALSE,
1472     .disable_logging =          FALSE,
1473     .initgroups =               FALSE,
1474     .uid_set =                  FALSE,
1475     .gid_set =                  FALSE,
1476     .uid =                      (uid_t)(-1),
1477     .gid =                      (gid_t)(-1),
1478     .expand_uid =               NULL,
1479     .expand_gid =               NULL,
1480     .warn_message =             NULL,
1481     .shadow =                   NULL,
1482     .shadow_condition =         NULL,
1483     .filter_command =           NULL,
1484     .add_headers =              NULL,
1485     .remove_headers =           NULL,
1486     .return_path =              NULL,
1487     .debug_string =             NULL,
1488     .max_parallel =             NULL,
1489     .message_size_limit =       NULL,
1490     .headers_rewrite =          NULL,
1491     .rewrite_rules =            NULL,
1492     .rewrite_existflags =       0,
1493     .filter_timeout =           300,
1494     .body_only =                FALSE,
1495     .delivery_date_add =        FALSE,
1496     .envelope_to_add =          FALSE,
1497     .headers_only =             FALSE,
1498     .rcpt_include_affixes =     FALSE,
1499     .return_path_add =          FALSE,
1500     .return_output =            FALSE,
1501     .return_fail_output =       FALSE,
1502     .log_output =               FALSE,
1503     .log_fail_output =          FALSE,
1504     .log_defer_output =         FALSE,
1505     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1506                                                  1 nor 0 so can detect unset */
1507 #ifndef DISABLE_EVENT
1508    .event_action =              NULL
1509 #endif
1510 };
1511
1512 int     transport_count;
1513 uschar *transport_name          = NULL;
1514 int     transport_newlines;
1515 const uschar **transport_filter_argv  = NULL;
1516 int     transport_filter_timeout;
1517 BOOL    transport_filter_timed_out = FALSE;
1518 int     transport_write_timeout= 0;
1519
1520 tree_node  *tree_dns_fails     = NULL;
1521 tree_node  *tree_duplicates    = NULL;
1522 tree_node  *tree_nonrecipients = NULL;
1523 tree_node  *tree_unusable      = NULL;
1524
1525 BOOL    trusted_caller         = FALSE;
1526 BOOL    trusted_config         = TRUE;
1527 gid_t  *trusted_groups         = NULL;
1528 uid_t  *trusted_users          = NULL;
1529 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1530
1531 uschar *unknown_login          = NULL;
1532 uschar *unknown_username       = NULL;
1533 uschar *untrusted_set_sender   = NULL;
1534
1535 /*  A regex for matching a "From_" line in an incoming message, in the form
1536
1537     From ph10 Fri Jan  5 12:35 GMT 1996
1538
1539 which  the "mail" commands send to the MTA (undocumented, of course), or in
1540 the  form
1541
1542     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1543
1544 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1545 Because  of variations in time formats, just match up to the minutes. That
1546 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1547 so  just require one digit for hours and minutes. The weekday is also absent
1548 in  some forms. */
1549
1550 uschar *uucp_from_pattern      = US
1551    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1552    "(?:"                                          /* Non-extracting bracket */
1553    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1554    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1555    ")"                                            /* End alternation */
1556    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1557
1558 uschar *uucp_from_sender       = US"$1";
1559
1560 uschar *verify_mode            = NULL;
1561 uschar *version_copyright      =
1562  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1563    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1564 uschar *version_date           = US"?";
1565 uschar *version_cnumber        = US"????";
1566 uschar *version_string         = US"?";
1567
1568 uschar *warn_message_file      = NULL;
1569 int     warning_count          = 0;
1570 uschar *warnmsg_delay          = NULL;
1571 uschar *warnmsg_recipients     = NULL;
1572 BOOL    write_rejectlog        = TRUE;
1573
1574
1575 /*  End of globals.c */