src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2017 */
   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 EXPERIMENTAL_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 EXPERIMENTAL_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 uschar *authenticated_fail_id  = NULL;
 425 uschar *authenticated_id       = NULL;
 426 uschar *authenticated_sender   = NULL;
 427 BOOL    authentication_failed  = FALSE;
 428 auth_instance  *auths          = NULL;
 429 uschar *auth_advertise_hosts   = US"*";
 430 auth_instance auth_defaults    = {
 431     .next =             NULL,
 432     .name =             NULL,
 433     .info =             NULL,
 434     .options_block =    NULL,
 435     .driver_name =      NULL,
 436     .advertise_condition = NULL,
 437     .client_condition = NULL,
 438     .public_name =      NULL,
 439     .set_id =           NULL,
 440     .set_client_id =    NULL,
 441     .mail_auth_condition = NULL,
 442     .server_debug_string = NULL,
 443     .server_condition = NULL,
 444     .client =           FALSE,
 445     .server =           FALSE,
 446     .advertised =       FALSE
 447 };
 448
 449 uschar *auth_defer_msg         = US"reason not recorded";
 450 uschar *auth_defer_user_msg    = US"";
 451 uschar *auth_vars[AUTH_VARS];
 452 int     auto_thaw              = 0;
 453 #ifdef WITH_CONTENT_SCAN
 454 BOOL    av_failed              = FALSE;
 455 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 456 #endif
 457
 458 BOOL    background_daemon      = TRUE;
 459
 460 #if BASE_62 == 62
 461 uschar *base62_chars=
 462     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 463 #else
 464 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 465 #endif
 466
 467 uschar *bi_command             = NULL;
 468 uschar *big_buffer             = NULL;
 469 int     big_buffer_size        = BIG_BUFFER_SIZE;
 470 #ifdef EXPERIMENTAL_BRIGHTMAIL
 471 uschar *bmi_alt_location       = NULL;
 472 uschar *bmi_base64_tracker_verdict = NULL;
 473 uschar *bmi_base64_verdict     = NULL;
 474 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 475 int     bmi_deliver            = 1;
 476 int     bmi_run                = 0;
 477 uschar *bmi_verdicts           = NULL;
 478 #endif
 479 int     bsmtp_transaction_linecount = 0;
 480 int     body_8bitmime          = 0;
 481 int     body_linecount         = 0;
 482 int     body_zerocount         = 0;
 483 uschar *bounce_message_file    = NULL;
 484 uschar *bounce_message_text    = NULL;
 485 uschar *bounce_recipient       = NULL;
 486 BOOL    bounce_return_body     = TRUE;
 487 int     bounce_return_linesize_limit = 998;
 488 BOOL    bounce_return_message  = TRUE;
 489 int     bounce_return_size_limit = 100*1024;
 490 uschar *bounce_sender_authentication = NULL;
 491 uschar *builtin_macros_create_trigger = NULL;
 492
 493 uschar *callout_address        = NULL;
 494 int     callout_cache_domain_positive_expire = 7*24*60*60;
 495 int     callout_cache_domain_negative_expire = 3*60*60;
 496 int     callout_cache_positive_expire = 24*60*60;
 497 int     callout_cache_negative_expire = 2*60*60;
 498 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 499 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 500 int     check_log_inodes       = 100;
 501 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 502 BOOL    check_rfc2047_length   = TRUE;
 503 int     check_spool_inodes     = 100;
 504 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 505
 506 uschar *chunking_advertise_hosts = US"*";
 507 unsigned chunking_datasize     = 0;
 508 unsigned chunking_data_left    = 0;
 509 BOOL    chunking_offered       = FALSE;
 510 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 511 const pcre *regex_CHUNKING     = NULL;
 512
 513 uschar *client_authenticator   = NULL;
 514 uschar *client_authenticated_id = NULL;
 515 uschar *client_authenticated_sender = NULL;
 516 int     clmacro_count          = 0;
 517 uschar *clmacros[MAX_CLMACROS];
 518 BOOL    commandline_checks_require_admin = FALSE;
 519 BOOL    config_changed         = FALSE;
 520 FILE   *config_file            = NULL;
 521 const uschar *config_filename  = NULL;
 522 int     config_lineno          = 0;
 523 #ifdef CONFIGURE_GROUP
 524 gid_t   config_gid             = CONFIGURE_GROUP;
 525 #else
 526 gid_t   config_gid             = 0;
 527 #endif
 528 uschar *config_main_filelist   = US CONFIGURE_FILE
 529                          "\0<-----------Space to patch configure_filename->";
 530 uschar *config_main_filename   = NULL;
 531 uschar *config_main_directory  = NULL;
 532
 533 #ifdef CONFIGURE_OWNER
 534 uid_t   config_uid             = CONFIGURE_OWNER;
 535 #else
 536 uid_t   config_uid             = 0;
 537 #endif
 538
 539 int     connection_max_messages= -1;
 540 uschar *continue_proxy_cipher  = NULL;
 541 uschar *continue_hostname      = NULL;
 542 uschar *continue_host_address  = NULL;
 543 BOOL    continue_more          = FALSE;
 544 int     continue_sequence      = 1;
 545 uschar *continue_transport     = NULL;
 546
 547 uschar *csa_status             = NULL;
 548 cut_t   cutthrough = {
 549   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 550   .delivery =           FALSE,                          /* when to attempt */
 551   .defer_pass =         FALSE,                          /* on defer: spool locally */
 552   .is_tls =             FALSE,                          /* not a TLS conn yet */
 553   .fd =                 -1,                             /* open connection */
 554   .nrcpt =              0,                              /* number of addresses */
 555 };
 556
 557 BOOL    daemon_listen          = FALSE;
 558 uschar *daemon_smtp_port       = US"smtp";
 559 int     daemon_startup_retries = 9;
 560 int     daemon_startup_sleep   = 30;
 561
 562 #ifdef EXPERIMENTAL_DCC
 563 BOOL    dcc_direct_add_header  = FALSE;
 564 uschar *dcc_header             = NULL;
 565 uschar *dcc_result             = NULL;
 566 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 567 uschar *dccifd_options         = US"header";
 568 #endif
 569
 570 BOOL    debug_daemon           = FALSE;
 571 int     debug_fd               = -1;
 572 FILE   *debug_file             = NULL;
 573 int     debug_notall[]         = {
 574   Di_memory,
 575   -1
 576 };
 577 bit_table debug_options[]      = { /* must be in alphabetical order */
 578   BIT_TABLE(D, acl),
 579   BIT_TABLE(D, all),
 580   BIT_TABLE(D, auth),
 581   BIT_TABLE(D, deliver),
 582   BIT_TABLE(D, dns),
 583   BIT_TABLE(D, dnsbl),
 584   BIT_TABLE(D, exec),
 585   BIT_TABLE(D, expand),
 586   BIT_TABLE(D, filter),
 587   BIT_TABLE(D, hints_lookup),
 588   BIT_TABLE(D, host_lookup),
 589   BIT_TABLE(D, ident),
 590   BIT_TABLE(D, interface),
 591   BIT_TABLE(D, lists),
 592   BIT_TABLE(D, load),
 593   BIT_TABLE(D, local_scan),
 594   BIT_TABLE(D, lookup),
 595   BIT_TABLE(D, memory),
 596   BIT_TABLE(D, pid),
 597   BIT_TABLE(D, process_info),
 598   BIT_TABLE(D, queue_run),
 599   BIT_TABLE(D, receive),
 600   BIT_TABLE(D, resolver),
 601   BIT_TABLE(D, retry),
 602   BIT_TABLE(D, rewrite),
 603   BIT_TABLE(D, route),
 604   BIT_TABLE(D, timestamp),
 605   BIT_TABLE(D, tls),
 606   BIT_TABLE(D, transport),
 607   BIT_TABLE(D, uid),
 608   BIT_TABLE(D, verify),
 609 };
 610 int     debug_options_count    = nelem(debug_options);
 611
 612 unsigned int debug_selector    = 0;
 613 BOOL    debug_store            = FALSE;
 614 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 615 uschar *delay_warning_condition=
 616   US"${if or {"
 617             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 618             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 619             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 620             "} {no}{yes}}";
 621 BOOL    delivery_date_remove   = TRUE;
 622 uschar *deliver_address_data   = NULL;
 623 int     deliver_datafile       = -1;
 624 const uschar *deliver_domain   = NULL;
 625 uschar *deliver_domain_data    = NULL;
 626 const uschar *deliver_domain_orig = NULL;
 627 const uschar *deliver_domain_parent = NULL;
 628 BOOL    deliver_drop_privilege = FALSE;
 629 BOOL    deliver_firsttime      = FALSE;
 630 BOOL    deliver_force          = FALSE;
 631 BOOL    deliver_freeze         = FALSE;
 632 time_t  deliver_frozen_at      = 0;
 633 uschar *deliver_home           = NULL;
 634 const uschar *deliver_host     = NULL;
 635 const uschar *deliver_host_address = NULL;
 636 int     deliver_host_port      = 0;
 637 uschar *deliver_in_buffer      = NULL;
 638 ino_t   deliver_inode          = 0;
 639 uschar *deliver_localpart      = NULL;
 640 uschar *deliver_localpart_data = NULL;
 641 uschar *deliver_localpart_orig = NULL;
 642 uschar *deliver_localpart_parent = NULL;
 643 uschar *deliver_localpart_prefix = NULL;
 644 uschar *deliver_localpart_suffix = NULL;
 645 BOOL    deliver_force_thaw     = FALSE;
 646 BOOL    deliver_manual_thaw    = FALSE;
 647 uschar *deliver_out_buffer     = NULL;
 648 int     deliver_queue_load_max = -1;
 649 address_item  *deliver_recipients = NULL;
 650 uschar *deliver_selectstring   = NULL;
 651 BOOL    deliver_selectstring_regex = FALSE;
 652 uschar *deliver_selectstring_sender = NULL;
 653 BOOL    deliver_selectstring_sender_regex = FALSE;
 654 BOOL    disable_callout_flush  = FALSE;
 655 BOOL    disable_delay_flush    = FALSE;
 656 #ifdef ENABLE_DISABLE_FSYNC
 657 BOOL    disable_fsync          = FALSE;
 658 #endif
 659 BOOL    disable_ipv6           = FALSE;
 660 BOOL    disable_logging        = FALSE;
 661
 662 #ifndef DISABLE_DKIM
 663 BOOL    dkim_collect_input       = FALSE;
 664 uschar *dkim_cur_signer          = NULL;
 665 BOOL    dkim_disable_verify      = FALSE;
 666 int     dkim_key_length          = 0;
 667 uschar *dkim_signers             = NULL;
 668 uschar *dkim_signing_domain      = NULL;
 669 uschar *dkim_signing_selector    = NULL;
 670 uschar *dkim_verify_signers      = US"$dkim_signers";
 671 uschar *dkim_verify_status       = NULL;
 672 uschar *dkim_verify_reason       = NULL;
 673 #endif
 674 #ifdef EXPERIMENTAL_DMARC
 675 BOOL    dmarc_has_been_checked  = FALSE;
 676 uschar *dmarc_ar_header         = NULL;
 677 uschar *dmarc_domain_policy     = NULL;
 678 uschar *dmarc_forensic_sender   = NULL;
 679 uschar *dmarc_history_file      = NULL;
 680 uschar *dmarc_status            = NULL;
 681 uschar *dmarc_status_text       = NULL;
 682 uschar *dmarc_tld_file          = NULL;
 683 uschar *dmarc_used_domain       = NULL;
 684 BOOL    dmarc_disable_verify    = FALSE;
 685 BOOL    dmarc_enable_forensic   = FALSE;
 686 #endif
 687
 688 uschar *dns_again_means_nonexist = NULL;
 689 int     dns_csa_search_limit   = 5;
 690 BOOL    dns_csa_use_reverse    = TRUE;
 691 #ifdef EXPERIMENTAL_DANE
 692 int     dns_dane_ok            = -1;
 693 #endif
 694 uschar *dns_ipv4_lookup        = NULL;
 695 int     dns_retrans            = 0;
 696 int     dns_retry              = 0;
 697 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 698 uschar *dns_trust_aa           = NULL;
 699 int     dns_use_edns0          = -1; /* <0 = not coerced */
 700 uschar *dnslist_domain         = NULL;
 701 uschar *dnslist_matched        = NULL;
 702 uschar *dnslist_text           = NULL;
 703 uschar *dnslist_value          = NULL;
 704 tree_node *domainlist_anchor   = NULL;
 705 int     domainlist_count       = 0;
 706 BOOL    dont_deliver           = FALSE;
 707 BOOL    dot_ends               = TRUE;
 708 BOOL    drop_cr                = FALSE;         /* No longer used */
 709 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 710
 711 BOOL    enable_dollar_recipients = FALSE;
 712 BOOL    envelope_to_remove     = TRUE;
 713 int     errno_quota            = ERRNO_QUOTA;
 714 uschar *errors_copy            = NULL;
 715 int     error_handling         = ERRORS_SENDER;
 716 uschar *errors_reply_to        = NULL;
 717 int     errors_sender_rc       = EXIT_FAILURE;
 718 #ifndef DISABLE_EVENT
 719 uschar *event_action             = NULL;        /* expansion for delivery events */
 720 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 721 int     event_defer_errno        = 0;
 722 const uschar *event_name         = NULL;        /* event name variable */
 723 #endif
 724
 725
 726 gid_t   exim_gid               = EXIM_GID;
 727 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 728 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 729                         "\0<---------------Space to patch exim_path->";
 730 uid_t   exim_uid               = EXIM_UID;
 731 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 732 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 733 int     expand_forbid          = 0;
 734 int     expand_nlength[EXPAND_MAXN+1];
 735 int     expand_nmax            = -1;
 736 uschar *expand_nstring[EXPAND_MAXN+1];
 737 BOOL    expand_string_forcedfail = FALSE;
 738 uschar *expand_string_message;
 739 BOOL    extract_addresses_remove_arguments = TRUE;
 740 uschar *extra_local_interfaces = NULL;
 741
 742 int     fake_response          = OK;
 743 uschar *fake_response_text     = US"Your message has been rejected but is "
 744                                    "being kept for evaluation.\nIf it was a "
 745                                    "legitimate message, it may still be "
 746                                    "delivered to the target recipient(s).";
 747 int     filter_n[FILTER_VARIABLE_COUNT];
 748 BOOL    filter_running         = FALSE;
 749 int     filter_sn[FILTER_VARIABLE_COUNT];
 750 int     filter_test            = FTEST_NONE;
 751 uschar *filter_test_sfile      = NULL;
 752 uschar *filter_test_ufile      = NULL;
 753 uschar *filter_thisaddress     = NULL;
 754 int     finduser_retries       = 0;
 755 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 756 uschar *freeze_tell            = NULL;
 757 uschar *freeze_tell_config     = NULL;
 758 uschar *fudged_queue_times     = US"";
 759
 760 uschar *gecos_name             = NULL;
 761 uschar *gecos_pattern          = NULL;
 762 rewrite_rule  *global_rewrite_rules = NULL;
 763
 764 uschar *headers_charset        = US HEADERS_CHARSET;
 765 int     header_insert_maxlen   = 64 * 1024;
 766 header_line  *header_last      = NULL;
 767 header_line  *header_list      = NULL;
 768 int     header_maxsize         = HEADER_MAXSIZE;
 769 int     header_line_maxsize    = 0;
 770
 771 header_name header_names[] = {
 772   /* name               len     allow_resent    htype */
 773   { US"bcc",            3,      TRUE,           htype_bcc },
 774   { US"cc",             2,      TRUE,           htype_cc },
 775   { US"date",           4,      TRUE,           htype_date },
 776   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 777   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 778   { US"from",           4,      TRUE,           htype_from },
 779   { US"message-id",    10,      TRUE,           htype_id },
 780   { US"received",       8,      FALSE,          htype_received },
 781   { US"reply-to",       8,      FALSE,          htype_reply_to },
 782   { US"return-path",   11,      FALSE,          htype_return_path },
 783   { US"sender",         6,      TRUE,           htype_sender },
 784   { US"subject",        7,      FALSE,          htype_subject },
 785   { US"to",             2,      TRUE,           htype_to }
 786 };
 787
 788 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 789
 790 BOOL    header_rewritten       = FALSE;
 791 uschar *helo_accept_junk_hosts = NULL;
 792 uschar *helo_allow_chars       = US"";
 793 uschar *helo_lookup_domains    = US"@ : @[]";
 794 uschar *helo_try_verify_hosts  = NULL;
 795 BOOL    helo_verified          = FALSE;
 796 BOOL    helo_verify_failed     = FALSE;
 797 uschar *helo_verify_hosts      = NULL;
 798 const uschar *hex_digits       = CUS"0123456789abcdef";
 799 uschar *hold_domains           = NULL;
 800 BOOL    host_checking          = FALSE;
 801 BOOL    host_checking_callout  = FALSE;
 802 uschar *host_data              = NULL;
 803 BOOL    host_find_failed_syntax= FALSE;
 804 uschar *host_lookup            = NULL;
 805 BOOL    host_lookup_deferred   = FALSE;
 806 BOOL    host_lookup_failed     = FALSE;
 807 uschar *host_lookup_order      = US"bydns:byaddr";
 808 uschar *host_lookup_msg        = US"";
 809 int     host_number            = 0;
 810 uschar *host_number_string     = NULL;
 811 uschar *host_reject_connection = NULL;
 812 tree_node *hostlist_anchor     = NULL;
 813 int     hostlist_count         = 0;
 814 uschar *hosts_treat_as_local   = NULL;
 815 uschar *hosts_connection_nolog = NULL;
 816
 817 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 818 BOOL    ignore_fromline_local  = FALSE;
 819 uschar *ignore_fromline_hosts  = NULL;
 820 BOOL    inetd_wait_mode        = FALSE;
 821 int     inetd_wait_timeout     = -1;
 822 uschar *initial_cwd            = NULL;
 823 uschar *interface_address      = NULL;
 824 int     interface_port         = -1;
 825 BOOL    is_inetd               = FALSE;
 826 uschar *iterate_item           = NULL;
 827
 828 int     journal_fd             = -1;
 829
 830 uschar *keep_environment       = NULL;
 831
 832 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 833
 834 uschar *eldap_dn               = NULL;
 835 int     load_average           = -2;
 836 BOOL    local_error_message    = FALSE;
 837 BOOL    local_from_check       = TRUE;
 838 uschar *local_from_prefix      = NULL;
 839 uschar *local_from_suffix      = NULL;
 840
 841 #if HAVE_IPV6
 842 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 843 #else
 844 uschar *local_interfaces       = US"0.0.0.0";
 845 #endif
 846
 847 uschar *local_scan_data        = NULL;
 848 int     local_scan_timeout     = 5*60;
 849 BOOL    local_sender_retain    = FALSE;
 850 gid_t   local_user_gid         = (gid_t)(-1);
 851 uid_t   local_user_uid         = (uid_t)(-1);
 852
 853 tree_node *localpartlist_anchor= NULL;
 854 int     localpartlist_count    = 0;
 855 uschar *log_buffer             = NULL;
 856
 857 int     log_default[]          = { /* for initializing log_selector */
 858   Li_acl_warn_skipped,
 859   Li_connection_reject,
 860   Li_delay_delivery,
 861   Li_dnslist_defer,
 862   Li_etrn,
 863   Li_host_lookup_failed,
 864   Li_lost_incoming_connection,
 865   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 866   Li_queue_run,
 867   Li_rejected_header,
 868   Li_retry_defer,
 869   Li_sender_verify_fail,
 870   Li_size_reject,
 871   Li_skip_delivery,
 872   Li_smtp_confirmation,
 873   Li_tls_certificate_verified,
 874   Li_tls_cipher,
 875   -1
 876 };
 877
 878 uschar *log_file_path          = US LOG_FILE_PATH
 879                            "\0<--------------Space to patch log_file_path->";
 880
 881 int     log_notall[]           = {
 882   -1
 883 };
 884 bit_table log_options[]        = { /* must be in alphabetical order */
 885   BIT_TABLE(L, 8bitmime),
 886   BIT_TABLE(L, acl_warn_skipped),
 887   BIT_TABLE(L, address_rewrite),
 888   BIT_TABLE(L, all),
 889   BIT_TABLE(L, all_parents),
 890   BIT_TABLE(L, arguments),
 891   BIT_TABLE(L, connection_reject),
 892   BIT_TABLE(L, delay_delivery),
 893   BIT_TABLE(L, deliver_time),
 894   BIT_TABLE(L, delivery_size),
 895   BIT_TABLE(L, dnslist_defer),
 896   BIT_TABLE(L, dnssec),
 897   BIT_TABLE(L, etrn),
 898   BIT_TABLE(L, host_lookup_failed),
 899   BIT_TABLE(L, ident_timeout),
 900   BIT_TABLE(L, incoming_interface),
 901   BIT_TABLE(L, incoming_port),
 902   BIT_TABLE(L, lost_incoming_connection),
 903   BIT_TABLE(L, millisec),
 904   BIT_TABLE(L, outgoing_interface),
 905   BIT_TABLE(L, outgoing_port),
 906   BIT_TABLE(L, pid),
 907 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 908   BIT_TABLE(L, proxy),
 909 #endif
 910   BIT_TABLE(L, queue_run),
 911   BIT_TABLE(L, queue_time),
 912   BIT_TABLE(L, queue_time_overall),
 913   BIT_TABLE(L, received_recipients),
 914   BIT_TABLE(L, received_sender),
 915   BIT_TABLE(L, rejected_header),
 916   { US"rejected_headers", Li_rejected_header },
 917   BIT_TABLE(L, retry_defer),
 918   BIT_TABLE(L, return_path_on_delivery),
 919   BIT_TABLE(L, sender_on_delivery),
 920   BIT_TABLE(L, sender_verify_fail),
 921   BIT_TABLE(L, size_reject),
 922   BIT_TABLE(L, skip_delivery),
 923   BIT_TABLE(L, smtp_confirmation),
 924   BIT_TABLE(L, smtp_connection),
 925   BIT_TABLE(L, smtp_incomplete_transaction),
 926   BIT_TABLE(L, smtp_mailauth),
 927   BIT_TABLE(L, smtp_no_mail),
 928   BIT_TABLE(L, smtp_protocol_error),
 929   BIT_TABLE(L, smtp_syntax_error),
 930   BIT_TABLE(L, subject),
 931   BIT_TABLE(L, tls_certificate_verified),
 932   BIT_TABLE(L, tls_cipher),
 933   BIT_TABLE(L, tls_peerdn),
 934   BIT_TABLE(L, tls_sni),
 935   BIT_TABLE(L, unknown_in_list),
 936 };
 937 int     log_options_count      = nelem(log_options);
 938
 939 int     log_reject_target      = 0;
 940 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 941 uschar *log_selector_string    = NULL;
 942 FILE   *log_stderr             = NULL;
 943 BOOL    log_testing_mode       = FALSE;
 944 BOOL    log_timezone           = FALSE;
 945 uschar *login_sender_address   = NULL;
 946 uschar *lookup_dnssec_authenticated = NULL;
 947 int     lookup_open_max        = 25;
 948 uschar *lookup_value           = NULL;
 949
 950 uschar *mailstore_basename     = NULL;
 951 #ifdef WITH_CONTENT_SCAN
 952 uschar *malware_name           = NULL;  /* Virus Name */
 953 #endif
 954 int     max_received_linelength= 0;
 955 int     max_username_length    = 0;
 956 int     message_age            = 0;
 957 uschar *message_body           = NULL;
 958 uschar *message_body_end       = NULL;
 959 BOOL    message_body_newlines  = FALSE;
 960 int     message_body_size      = 0;
 961 int     message_body_visible   = 500;
 962 int     message_ended          = END_NOTSTARTED;
 963 uschar *message_headers        = NULL;
 964 uschar *message_id;
 965 uschar *message_id_domain      = NULL;
 966 uschar *message_id_text        = NULL;
 967 struct timeval message_id_tv   = { 0, 0 };
 968 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 969 uschar *message_id_external;
 970 int     message_linecount      = 0;
 971 BOOL    message_logs           = TRUE;
 972 int     message_size           = 0;
 973 uschar *message_size_limit     = US"50M";
 974 #ifdef SUPPORT_I18N
 975 BOOL    message_smtputf8       = FALSE;
 976 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 977 #endif
 978 uschar  message_subdir[2]      = { 0, 0 };
 979 uschar *message_reference      = NULL;
 980
 981 /* MIME ACL expandables */
 982 #ifdef WITH_CONTENT_SCAN
 983 int     mime_anomaly_level     = 0;
 984 const uschar *mime_anomaly_text      = NULL;
 985 uschar *mime_boundary          = NULL;
 986 uschar *mime_charset           = NULL;
 987 uschar *mime_content_description = NULL;
 988 uschar *mime_content_disposition = NULL;
 989 uschar *mime_content_id        = NULL;
 990 unsigned int mime_content_size = 0;
 991 uschar *mime_content_transfer_encoding = NULL;
 992 uschar *mime_content_type      = NULL;
 993 uschar *mime_decoded_filename  = NULL;
 994 uschar *mime_filename          = NULL;
 995 int     mime_is_multipart      = 0;
 996 int     mime_is_coverletter    = 0;
 997 int     mime_is_rfc822         = 0;
 998 int     mime_part_count        = -1;
 999 #endif
1000
1001 BOOL    mua_wrapper            = FALSE;
1002
1003 uid_t  *never_users            = NULL;
1004 #ifdef WITH_CONTENT_SCAN
1005 BOOL    no_mbox_unspool        = FALSE;
1006 #endif
1007 BOOL    no_multiline_responses = FALSE;
1008
1009 const int on                   = 1;     /* for setsockopt */
1010 const int off                  = 0;
1011
1012 uid_t   original_euid;
1013 gid_t   originator_gid;
1014 uschar *originator_login       = NULL;
1015 uschar *originator_name        = NULL;
1016 uid_t   originator_uid;
1017 uschar *override_local_interfaces = NULL;
1018 uschar *override_pid_file_path = NULL;
1019
1020 BOOL    parse_allow_group      = FALSE;
1021 BOOL    parse_found_group      = FALSE;
1022 uschar *percent_hack_domains   = NULL;
1023 uschar *pid_file_path          = US PID_FILE_PATH
1024                            "\0<--------------Space to patch pid_file_path->";
1025 BOOL    pipelining_enable      = TRUE;
1026 uschar *pipelining_advertise_hosts = US"*";
1027 BOOL    preserve_message_logs  = FALSE;
1028 uschar *primary_hostname       = NULL;
1029 BOOL    print_topbitchars      = FALSE;
1030 uschar  process_info[PROCESS_INFO_SIZE];
1031 int     process_info_len       = 0;
1032 uschar *process_log_path       = NULL;
1033 BOOL    prod_requires_admin    = TRUE;
1034
1035 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1036 uschar *hosts_proxy            = US"";
1037 uschar *proxy_external_address = US"";
1038 int     proxy_external_port    = 0;
1039 uschar *proxy_local_address    = US"";
1040 int     proxy_local_port       = 0;
1041 BOOL    proxy_session          = FALSE;
1042 BOOL    proxy_session_failed   = FALSE;
1043 #endif
1044
1045 uschar *prvscheck_address      = NULL;
1046 uschar *prvscheck_keynum       = NULL;
1047 uschar *prvscheck_result       = NULL;
1048
1049
1050 const uschar *qualify_domain_recipient = NULL;
1051 uschar *qualify_domain_sender  = NULL;
1052 BOOL    queue_2stage           = FALSE;
1053 uschar *queue_domains          = NULL;
1054 int     queue_interval         = -1;
1055 BOOL    queue_list_requires_admin = TRUE;
1056 uschar *queue_name             = US"";
1057 BOOL    queue_only             = FALSE;
1058 uschar *queue_only_file        = NULL;
1059 int     queue_only_load        = -1;
1060 BOOL    queue_only_load_latch  = TRUE;
1061 BOOL    queue_only_override    = TRUE;
1062 BOOL    queue_only_policy      = FALSE;
1063 BOOL    queue_run_first_delivery = FALSE;
1064 BOOL    queue_run_force        = FALSE;
1065 BOOL    queue_run_in_order     = FALSE;
1066 BOOL    queue_run_local        = FALSE;
1067 uschar *queue_run_max          = US"5";
1068 pid_t   queue_run_pid          = (pid_t)0;
1069 int     queue_run_pipe         = -1;
1070 BOOL    queue_running          = FALSE;
1071 BOOL    queue_smtp             = FALSE;
1072 uschar *queue_smtp_domains     = NULL;
1073
1074 unsigned int random_seed       = 0;
1075 tree_node *ratelimiters_cmd    = NULL;
1076 tree_node *ratelimiters_conn   = NULL;
1077 tree_node *ratelimiters_mail   = NULL;
1078 uschar *raw_active_hostname    = NULL;
1079 uschar *raw_sender             = NULL;
1080 uschar **raw_recipients        = NULL;
1081 int     raw_recipients_count   = 0;
1082
1083 int     rcpt_count             = 0;
1084 int     rcpt_fail_count        = 0;
1085 int     rcpt_defer_count       = 0;
1086 gid_t   real_gid;
1087 uid_t   real_uid;
1088 BOOL    really_exim            = TRUE;
1089 BOOL    receive_call_bombout   = FALSE;
1090 int     receive_linecount      = 0;
1091 int     receive_messagecount   = 0;
1092 int     receive_timeout        = 0;
1093 int     received_count         = 0;
1094 uschar *received_for           = NULL;
1095
1096 /*  This is the default text for Received headers generated by Exim. The
1097 date  will be automatically added on the end. */
1098
1099 uschar *received_header_text   = US
1100      "Received: "
1101      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1102      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1103      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1104      "by $primary_hostname "
1105      "${if def:received_protocol {with $received_protocol}} "
1106      #ifdef SUPPORT_TLS
1107      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1108      #endif
1109      "(Exim $version_number)\n\t"
1110      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1111      "id $message_exim_id"
1112      "${if def:received_for {\n\tfor $received_for}}"
1113      "\0<---------------Space to patch received_header_text->";
1114
1115 int     received_headers_max   = 30;
1116 uschar *received_protocol      = NULL;
1117 struct timeval received_time   = { 0, 0 };
1118 uschar *recipient_data         = NULL;
1119 uschar *recipient_unqualified_hosts = NULL;
1120 uschar *recipient_verify_failure = NULL;
1121 int     recipients_count       = 0;
1122 BOOL    recipients_discarded   = FALSE;
1123 recipient_item  *recipients_list = NULL;
1124 int     recipients_list_max    = 0;
1125 int     recipients_max         = 0;
1126 BOOL    recipients_max_reject  = FALSE;
1127 const pcre *regex_AUTH         = NULL;
1128 const pcre *regex_check_dns_names = NULL;
1129 const pcre *regex_From         = NULL;
1130 const pcre *regex_IGNOREQUOTA  = NULL;
1131 const pcre *regex_PIPELINING   = NULL;
1132 const pcre *regex_SIZE         = NULL;
1133 const pcre *regex_ismsgid      = NULL;
1134 const pcre *regex_smtp_code    = NULL;
1135 uschar *regex_vars[REGEX_VARS];
1136 #ifdef WHITELIST_D_MACROS
1137 const pcre *regex_whitelisted_macro = NULL;
1138 #endif
1139 #ifdef WITH_CONTENT_SCAN
1140 uschar *regex_match_string     = NULL;
1141 #endif
1142 int     remote_delivery_count  = 0;
1143 int     remote_max_parallel    = 2;
1144 uschar *remote_sort_domains    = NULL;
1145 int     retry_data_expire      = 7*24*60*60;
1146 int     retry_interval_max     = 24*60*60;
1147 int     retry_maximum_timeout  = 0;        /* set from retry config */
1148 retry_config  *retries         = NULL;
1149 uschar *return_path            = NULL;
1150 BOOL    return_path_remove     = TRUE;
1151 int     rewrite_existflags     = 0;
1152 uschar *rfc1413_hosts          = US"@[]";
1153 int     rfc1413_query_timeout  = 0;
1154 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1155 uid_t   root_gid               = ROOT_GID;
1156 uid_t   root_uid               = ROOT_UID;
1157
1158 router_instance  *routers  = NULL;
1159 router_instance  router_defaults = {
1160     .next =                     NULL,
1161     .name =                     NULL,
1162     .info =                     NULL,
1163     .options_block =            NULL,
1164     .driver_name =              NULL,
1165
1166     .address_data =             NULL,
1167 #ifdef EXPERIMENTAL_BRIGHTMAIL
1168     .bmi_rule =                 NULL,
1169 #endif
1170     .cannot_route_message =     NULL,
1171     .condition =                NULL,
1172     .current_directory =        NULL,
1173     .debug_string =             NULL,
1174     .domains =                  NULL,
1175     .errors_to =                NULL,
1176     .expand_gid =               NULL,
1177     .expand_uid =               NULL,
1178     .expand_more =              NULL,
1179     .expand_unseen =            NULL,
1180     .extra_headers =            NULL,
1181     .fallback_hosts =           NULL,
1182     .home_directory =           NULL,
1183     .ignore_target_hosts =      NULL,
1184     .local_parts =              NULL,
1185     .pass_router_name =         NULL,
1186     .prefix =                   NULL,
1187     .redirect_router_name =     NULL,
1188     .remove_headers =           NULL,
1189     .require_files =            NULL,
1190     .router_home_directory =    NULL,
1191     .self =                     US"freeze",
1192     .senders =                  NULL,
1193     .suffix =                   NULL,
1194     .translate_ip_address =     NULL,
1195     .transport_name =           NULL,
1196
1197     .address_test =             TRUE,
1198 #ifdef EXPERIMENTAL_BRIGHTMAIL
1199     .bmi_deliver_alternate =    FALSE,
1200     .bmi_deliver_default =      FALSE,
1201     .bmi_dont_deliver =         FALSE,
1202 #endif
1203     .expn =                     TRUE,
1204     .caseful_local_part =       FALSE,
1205     .check_local_user =         FALSE,
1206     .disable_logging =          FALSE,
1207     .fail_verify_recipient =    FALSE,
1208     .fail_verify_sender =       FALSE,
1209     .gid_set =                  FALSE,
1210     .initgroups =               FALSE,
1211     .log_as_local =             TRUE_UNSET,
1212     .more =                     TRUE,
1213     .pass_on_timeout =          FALSE,
1214     .prefix_optional =          FALSE,
1215     .repeat_use =               TRUE,
1216     .retry_use_local_part =     TRUE_UNSET,
1217     .same_domain_copy_routing = FALSE,
1218     .self_rewrite =             FALSE,
1219     .suffix_optional =          FALSE,
1220     .verify_only =              FALSE,
1221     .verify_recipient =         TRUE,
1222     .verify_sender =            TRUE,
1223     .uid_set =                  FALSE,
1224     .unseen =                   FALSE,
1225     .dsn_lasthop =              FALSE,
1226
1227     .self_code =                self_freeze,
1228     .uid =                      (uid_t)(-1),
1229     .gid =                      (gid_t)(-1),
1230
1231     .fallback_hostlist =        NULL,
1232     .transport =                NULL,
1233     .pass_router =              NULL,
1234     .redirect_router =          NULL,
1235
1236     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1237 };
1238
1239 uschar *router_name            = NULL;
1240
1241 ip_address_item *running_interfaces = NULL;
1242 BOOL    running_in_test_harness = FALSE;
1243
1244 /* This is a weird one. The following string gets patched in the binary by the
1245 script that sets up a copy of Exim for running in the test harness. It seems
1246 that compilers are now clever, and share constant strings if they can.
1247 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1248 make use of the end of this string in order to save space. So the patching then
1249 wrecks this. We defeat this optimization by adding some additional characters
1250 onto the end of the string. */
1251
1252 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1253
1254 int     runrc                  = 0;
1255
1256 uschar *search_error_message   = NULL;
1257 BOOL    search_find_defer      = FALSE;
1258 uschar *self_hostname          = NULL;
1259 uschar *sender_address         = NULL;
1260 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1261 uschar *sender_address_data    = NULL;
1262 BOOL    sender_address_forced  = FALSE;
1263 uschar *sender_address_unrewritten = NULL;
1264 uschar *sender_data            = NULL;
1265 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1266 uschar *sender_fullhost        = NULL;
1267 BOOL    sender_helo_dnssec     = FALSE;
1268 uschar *sender_helo_name       = NULL;
1269 uschar **sender_host_aliases   = &no_aliases;
1270 uschar *sender_host_address    = NULL;
1271 uschar *sender_host_authenticated = NULL;
1272 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1273 BOOL    sender_host_dnssec     = FALSE;
1274 uschar *sender_host_name       = NULL;
1275 int     sender_host_port       = 0;
1276 BOOL    sender_host_notsocket  = FALSE;
1277 BOOL    sender_host_unknown    = FALSE;
1278 uschar *sender_ident           = NULL;
1279 BOOL    sender_local           = FALSE;
1280 BOOL    sender_name_forced     = FALSE;
1281 uschar *sender_rate            = NULL;
1282 uschar *sender_rate_limit      = NULL;
1283 uschar *sender_rate_period     = NULL;
1284 uschar *sender_rcvhost         = NULL;
1285 BOOL    sender_set_untrusted   = FALSE;
1286 uschar *sender_unqualified_hosts = NULL;
1287 uschar *sender_verify_failure = NULL;
1288 address_item *sender_verified_list  = NULL;
1289 address_item *sender_verified_failed = NULL;
1290 int     sender_verified_rc     = -1;
1291 BOOL    sender_verified_responded = FALSE;
1292 uschar *sending_ip_address     = NULL;
1293 int     sending_port           = -1;
1294 SIGNAL_BOOL sigalrm_seen       = FALSE;
1295 uschar **sighup_argv           = NULL;
1296 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1297 int     smtp_accept_count      = 0;
1298 BOOL    smtp_accept_keepalive  = TRUE;
1299 int     smtp_accept_max        = 20;
1300 int     smtp_accept_max_nonmail= 10;
1301 uschar *smtp_accept_max_nonmail_hosts = US"*";
1302 int     smtp_accept_max_per_connection = 1000;
1303 uschar *smtp_accept_max_per_host = NULL;
1304 int     smtp_accept_queue      = 0;
1305 int     smtp_accept_queue_per_connection = 10;
1306 int     smtp_accept_reserve    = 0;
1307 uschar *smtp_active_hostname   = NULL;
1308 BOOL    smtp_authenticated     = FALSE;
1309 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1310                              "Exim $version_number $tod_full"
1311                              "\0<---------------Space to patch smtp_banner->";
1312 BOOL    smtp_batched_input     = FALSE;
1313 BOOL    smtp_check_spool_space = TRUE;
1314 int     smtp_ch_index          = 0;
1315 uschar *smtp_cmd_argument      = NULL;
1316 uschar *smtp_cmd_buffer        = NULL;
1317 struct timeval smtp_connection_start  = {0,0};
1318 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1319 int     smtp_connect_backlog   = 20;
1320 double  smtp_delay_mail        = 0.0;
1321 double  smtp_delay_rcpt        = 0.0;
1322 BOOL    smtp_enforce_sync      = TRUE;
1323 FILE   *smtp_in                = NULL;
1324 BOOL    smtp_input             = FALSE;
1325 int     smtp_load_reserve      = -1;
1326 int     smtp_mailcmd_count     = 0;
1327 FILE   *smtp_out               = NULL;
1328 uschar *smtp_etrn_command      = NULL;
1329 BOOL    smtp_etrn_serialize    = TRUE;
1330 int     smtp_max_synprot_errors= 3;
1331 int     smtp_max_unknown_commands = 3;
1332 uschar *smtp_notquit_reason    = NULL;
1333 uschar *smtp_ratelimit_hosts   = NULL;
1334 uschar *smtp_ratelimit_mail    = NULL;
1335 uschar *smtp_ratelimit_rcpt    = NULL;
1336 uschar *smtp_read_error        = US"";
1337 int     smtp_receive_timeout   = 5*60;
1338 uschar *smtp_receive_timeout_s = NULL;
1339 uschar *smtp_reserve_hosts     = NULL;
1340 BOOL    smtp_return_error_details = FALSE;
1341 int     smtp_rlm_base          = 0;
1342 double  smtp_rlm_factor        = 0.0;
1343 int     smtp_rlm_limit         = 0;
1344 int     smtp_rlm_threshold     = INT_MAX;
1345 int     smtp_rlr_base          = 0;
1346 double  smtp_rlr_factor        = 0.0;
1347 int     smtp_rlr_limit         = 0;
1348 int     smtp_rlr_threshold     = INT_MAX;
1349 unsigned smtp_peer_options     = 0;
1350 unsigned smtp_peer_options_wrap= 0;
1351 #ifdef SUPPORT_I18N
1352 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1353 #endif
1354
1355 #ifdef WITH_CONTENT_SCAN
1356 uschar *spamd_address          = US"127.0.0.1 783";
1357 uschar *spam_bar               = NULL;
1358 uschar *spam_report            = NULL;
1359 uschar *spam_action            = NULL;
1360 uschar *spam_score             = NULL;
1361 uschar *spam_score_int         = NULL;
1362 #endif
1363 #ifdef EXPERIMENTAL_SPF
1364 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1365 uschar *spf_header_comment     = NULL;
1366 uschar *spf_received           = NULL;
1367 uschar *spf_result             = NULL;
1368 uschar *spf_smtp_comment       = NULL;
1369 #endif
1370
1371 BOOL    split_spool_directory  = FALSE;
1372 uschar *spool_directory        = US SPOOL_DIRECTORY
1373                            "\0<--------------Space to patch spool_directory->";
1374 BOOL    spool_file_wireformat  = FALSE;
1375 BOOL    spool_wireformat       = FALSE;
1376 #ifdef EXPERIMENTAL_SRS
1377 uschar *srs_config             = NULL;
1378 uschar *srs_db_address         = NULL;
1379 uschar *srs_db_key             = NULL;
1380 int     srs_hashlength         = 6;
1381 int     srs_hashmin            = -1;
1382 int     srs_maxage             = 31;
1383 uschar *srs_orig_recipient     = NULL;
1384 uschar *srs_orig_sender        = NULL;
1385 uschar *srs_recipient          = NULL;
1386 uschar *srs_secrets            = NULL;
1387 uschar *srs_status             = NULL;
1388 BOOL    srs_usehash            = TRUE;
1389 BOOL    srs_usetimestamp       = TRUE;
1390 #endif
1391 BOOL    strict_acl_vars        = FALSE;
1392 int     string_datestamp_offset= -1;
1393 int     string_datestamp_length= 0;
1394 int     string_datestamp_type  = -1;
1395 BOOL    strip_excess_angle_brackets = FALSE;
1396 BOOL    strip_trailing_dot     = FALSE;
1397 uschar *submission_domain      = NULL;
1398 BOOL    submission_mode        = FALSE;
1399 uschar *submission_name        = NULL;
1400 BOOL    suppress_local_fixups  = FALSE;
1401 BOOL    suppress_local_fixups_default = FALSE;
1402 BOOL    synchronous_delivery   = FALSE;
1403 BOOL    syslog_duplication     = TRUE;
1404 int     syslog_facility        = LOG_MAIL;
1405 BOOL    syslog_pid             = TRUE;
1406 uschar *syslog_processname     = US"exim";
1407 BOOL    syslog_timestamp       = TRUE;
1408 uschar *system_filter          = NULL;
1409
1410 uschar *system_filter_directory_transport = NULL;
1411 uschar *system_filter_file_transport = NULL;
1412 uschar *system_filter_pipe_transport = NULL;
1413 uschar *system_filter_reply_transport = NULL;
1414
1415 gid_t   system_filter_gid      = 0;
1416 BOOL    system_filter_gid_set  = FALSE;
1417 uid_t   system_filter_uid      = (uid_t)-1;
1418 BOOL    system_filter_uid_set  = FALSE;
1419 BOOL    system_filtering       = FALSE;
1420
1421 BOOL    tcp_fastopen_ok        = FALSE;
1422 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1423 BOOL    tcp_in_fastopen        = FALSE;
1424 BOOL    tcp_in_fastopen_logged = FALSE;
1425 BOOL    tcp_nodelay            = TRUE;
1426 int     tcp_out_fastopen       = 0;
1427 BOOL    tcp_out_fastopen_logged= FALSE;
1428 #ifdef USE_TCP_WRAPPERS
1429 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1430 #endif
1431 int     test_harness_load_avg  = 0;
1432 int     thismessage_size_limit = 0;
1433 int     timeout_frozen_after   = 0;
1434 BOOL    timestamps_utc         = FALSE;
1435
1436 transport_instance  *transports = NULL;
1437
1438 transport_instance  transport_defaults = {
1439     .next =                     NULL,
1440     .name =                     NULL,
1441     .info =                     NULL,
1442     .options_block =            NULL,
1443     .driver_name =              NULL,
1444     .setup =                    NULL,
1445     .batch_max =                1,
1446     .batch_id =                 NULL,
1447     .home_dir =                 NULL,
1448     .current_dir =              NULL,
1449     .expand_multi_domain =      NULL,
1450     .multi_domain =             TRUE,
1451     .overrides_hosts =          FALSE,
1452     .max_addresses =            100,
1453     .connection_max_messages =  500,
1454     .deliver_as_creator =       FALSE,
1455     .disable_logging =          FALSE,
1456     .initgroups =               FALSE,
1457     .uid_set =                  FALSE,
1458     .gid_set =                  FALSE,
1459     .uid =                      (uid_t)(-1),
1460     .gid =                      (gid_t)(-1),
1461     .expand_uid =               NULL,
1462     .expand_gid =               NULL,
1463     .warn_message =             NULL,
1464     .shadow =                   NULL,
1465     .shadow_condition =         NULL,
1466     .filter_command =           NULL,
1467     .add_headers =              NULL,
1468     .remove_headers =           NULL,
1469     .return_path =              NULL,
1470     .debug_string =             NULL,
1471     .max_parallel =             NULL,
1472     .message_size_limit =       NULL,
1473     .headers_rewrite =          NULL,
1474     .rewrite_rules =            NULL,
1475     .rewrite_existflags =       0,
1476     .filter_timeout =           300,
1477     .body_only =                FALSE,
1478     .delivery_date_add =        FALSE,
1479     .envelope_to_add =          FALSE,
1480     .headers_only =             FALSE,
1481     .rcpt_include_affixes =     FALSE,
1482     .return_path_add =          FALSE,
1483     .return_output =            FALSE,
1484     .return_fail_output =       FALSE,
1485     .log_output =               FALSE,
1486     .log_fail_output =          FALSE,
1487     .log_defer_output =         FALSE,
1488     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1489                                                  1 nor 0 so can detect unset */
1490 #ifndef DISABLE_EVENT
1491    .event_action =              NULL
1492 #endif
1493 };
1494
1495 int     transport_count;
1496 uschar *transport_name          = NULL;
1497 int     transport_newlines;
1498 const uschar **transport_filter_argv  = NULL;
1499 int     transport_filter_timeout;
1500 BOOL    transport_filter_timed_out = FALSE;
1501 int     transport_write_timeout= 0;
1502
1503 tree_node  *tree_dns_fails     = NULL;
1504 tree_node  *tree_duplicates    = NULL;
1505 tree_node  *tree_nonrecipients = NULL;
1506 tree_node  *tree_unusable      = NULL;
1507
1508 BOOL    trusted_caller         = FALSE;
1509 BOOL    trusted_config         = TRUE;
1510 gid_t  *trusted_groups         = NULL;
1511 uid_t  *trusted_users          = NULL;
1512 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1513
1514 uschar *unknown_login          = NULL;
1515 uschar *unknown_username       = NULL;
1516 uschar *untrusted_set_sender   = NULL;
1517
1518 /*  A regex for matching a "From_" line in an incoming message, in the form
1519
1520     From ph10 Fri Jan  5 12:35 GMT 1996
1521
1522 which  the "mail" commands send to the MTA (undocumented, of course), or in
1523 the  form
1524
1525     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1526
1527 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1528 Because  of variations in time formats, just match up to the minutes. That
1529 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1530 so  just require one digit for hours and minutes. The weekday is also absent
1531 in  some forms. */
1532
1533 uschar *uucp_from_pattern      = US
1534    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1535    "(?:"                                          /* Non-extracting bracket */
1536    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1537    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1538    ")"                                            /* End alternation */
1539    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1540
1541 uschar *uucp_from_sender       = US"$1";
1542
1543 uschar *verify_mode            = NULL;
1544 uschar *version_copyright      =
1545  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1546    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1547 uschar *version_date           = US"?";
1548 uschar *version_cnumber        = US"????";
1549 uschar *version_string         = US"?";
1550
1551 uschar *warn_message_file      = NULL;
1552 int     warning_count          = 0;
1553 uschar *warnmsg_delay          = NULL;
1554 uschar *warnmsg_recipients     = NULL;
1555 BOOL    write_rejectlog        = TRUE;
1556
1557
1558 /*  End of globals.c */