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 #ifdef SUPPORT_I18N
 403     .utf8_msg =         FALSE,
 404     .utf8_downcvt =     FALSE,
 405     .utf8_downcvt_maybe = FALSE
 406 #endif
 407   }
 408 };
 409
 410 uschar *address_file           = NULL;
 411 uschar *address_pipe           = NULL;
 412 BOOL    address_test_mode      = FALSE;
 413 tree_node *addresslist_anchor  = NULL;
 414 int     addresslist_count      = 0;
 415 gid_t  *admin_groups           = NULL;
 416 BOOL    admin_user             = FALSE;
 417 BOOL    allow_auth_unadvertised= FALSE;
 418 BOOL    allow_domain_literals  = FALSE;
 419 BOOL    allow_mx_to_ip         = FALSE;
 420 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 421 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 422 BOOL    allow_utf8_domains     = FALSE;
 423 uschar *authenticated_fail_id  = NULL;
 424 uschar *authenticated_id       = NULL;
 425 uschar *authenticated_sender   = NULL;
 426 BOOL    authentication_failed  = FALSE;
 427 auth_instance  *auths          = NULL;
 428 uschar *auth_advertise_hosts   = US"*";
 429 auth_instance auth_defaults    = {
 430     .next =             NULL,
 431     .name =             NULL,
 432     .info =             NULL,
 433     .options_block =    NULL,
 434     .driver_name =      NULL,
 435     .advertise_condition = NULL,
 436     .client_condition = NULL,
 437     .public_name =      NULL,
 438     .set_id =           NULL,
 439     .set_client_id =    NULL,
 440     .mail_auth_condition = NULL,
 441     .server_debug_string = NULL,
 442     .server_condition = NULL,
 443     .client =           FALSE,
 444     .server =           FALSE,
 445     .advertised =       FALSE
 446 };
 447
 448 uschar *auth_defer_msg         = US"reason not recorded";
 449 uschar *auth_defer_user_msg    = US"";
 450 uschar *auth_vars[AUTH_VARS];
 451 int     auto_thaw              = 0;
 452 #ifdef WITH_CONTENT_SCAN
 453 BOOL    av_failed              = FALSE;
 454 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 455 #endif
 456
 457 BOOL    background_daemon      = TRUE;
 458
 459 #if BASE_62 == 62
 460 uschar *base62_chars=
 461     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 462 #else
 463 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 464 #endif
 465
 466 uschar *bi_command             = NULL;
 467 uschar *big_buffer             = NULL;
 468 int     big_buffer_size        = BIG_BUFFER_SIZE;
 469 #ifdef EXPERIMENTAL_BRIGHTMAIL
 470 uschar *bmi_alt_location       = NULL;
 471 uschar *bmi_base64_tracker_verdict = NULL;
 472 uschar *bmi_base64_verdict     = NULL;
 473 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 474 int     bmi_deliver            = 1;
 475 int     bmi_run                = 0;
 476 uschar *bmi_verdicts           = NULL;
 477 #endif
 478 int     bsmtp_transaction_linecount = 0;
 479 int     body_8bitmime          = 0;
 480 int     body_linecount         = 0;
 481 int     body_zerocount         = 0;
 482 uschar *bounce_message_file    = NULL;
 483 uschar *bounce_message_text    = NULL;
 484 uschar *bounce_recipient       = NULL;
 485 BOOL    bounce_return_body     = TRUE;
 486 int     bounce_return_linesize_limit = 998;
 487 BOOL    bounce_return_message  = TRUE;
 488 int     bounce_return_size_limit = 100*1024;
 489 uschar *bounce_sender_authentication = NULL;
 490 uschar *builtin_macros_create_trigger = NULL;
 491
 492 uschar *callout_address        = NULL;
 493 int     callout_cache_domain_positive_expire = 7*24*60*60;
 494 int     callout_cache_domain_negative_expire = 3*60*60;
 495 int     callout_cache_positive_expire = 24*60*60;
 496 int     callout_cache_negative_expire = 2*60*60;
 497 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 498 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 499 int     check_log_inodes       = 100;
 500 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 501 BOOL    check_rfc2047_length   = TRUE;
 502 int     check_spool_inodes     = 100;
 503 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 504
 505 uschar *chunking_advertise_hosts = US"*";
 506 unsigned chunking_datasize     = 0;
 507 unsigned chunking_data_left    = 0;
 508 BOOL    chunking_offered       = FALSE;
 509 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 510 const pcre *regex_CHUNKING     = NULL;
 511
 512 uschar *client_authenticator   = NULL;
 513 uschar *client_authenticated_id = NULL;
 514 uschar *client_authenticated_sender = NULL;
 515 int     clmacro_count          = 0;
 516 uschar *clmacros[MAX_CLMACROS];
 517 BOOL    commandline_checks_require_admin = FALSE;
 518 BOOL    config_changed         = FALSE;
 519 FILE   *config_file            = NULL;
 520 const uschar *config_filename  = NULL;
 521 int     config_lineno          = 0;
 522 #ifdef CONFIGURE_GROUP
 523 gid_t   config_gid             = CONFIGURE_GROUP;
 524 #else
 525 gid_t   config_gid             = 0;
 526 #endif
 527 uschar *config_main_filelist   = US CONFIGURE_FILE
 528                          "\0<-----------Space to patch configure_filename->";
 529 uschar *config_main_filename   = NULL;
 530 uschar *config_main_directory  = NULL;
 531
 532 #ifdef CONFIGURE_OWNER
 533 uid_t   config_uid             = CONFIGURE_OWNER;
 534 #else
 535 uid_t   config_uid             = 0;
 536 #endif
 537
 538 int     connection_max_messages= -1;
 539 uschar *continue_proxy_cipher  = NULL;
 540 uschar *continue_hostname      = NULL;
 541 uschar *continue_host_address  = NULL;
 542 BOOL    continue_more          = FALSE;
 543 int     continue_sequence      = 1;
 544 uschar *continue_transport     = NULL;
 545
 546 uschar *csa_status             = NULL;
 547 cut_t   cutthrough = {
 548   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 549   .delivery =           FALSE,                          /* when to attempt */
 550   .defer_pass =         FALSE,                          /* on defer: spool locally */
 551   .is_tls =             FALSE,                          /* not a TLS conn yet */
 552   .fd =                 -1,                             /* open connection */
 553   .nrcpt =              0,                              /* number of addresses */
 554 };
 555
 556 BOOL    daemon_listen          = FALSE;
 557 uschar *daemon_smtp_port       = US"smtp";
 558 int     daemon_startup_retries = 9;
 559 int     daemon_startup_sleep   = 30;
 560
 561 #ifdef EXPERIMENTAL_DCC
 562 BOOL    dcc_direct_add_header  = FALSE;
 563 uschar *dcc_header             = NULL;
 564 uschar *dcc_result             = NULL;
 565 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 566 uschar *dccifd_options         = US"header";
 567 #endif
 568
 569 BOOL    debug_daemon           = FALSE;
 570 int     debug_fd               = -1;
 571 FILE   *debug_file             = NULL;
 572 int     debug_notall[]         = {
 573   Di_memory,
 574   -1
 575 };
 576 bit_table debug_options[]      = { /* must be in alphabetical order */
 577   BIT_TABLE(D, acl),
 578   BIT_TABLE(D, all),
 579   BIT_TABLE(D, auth),
 580   BIT_TABLE(D, deliver),
 581   BIT_TABLE(D, dns),
 582   BIT_TABLE(D, dnsbl),
 583   BIT_TABLE(D, exec),
 584   BIT_TABLE(D, expand),
 585   BIT_TABLE(D, filter),
 586   BIT_TABLE(D, hints_lookup),
 587   BIT_TABLE(D, host_lookup),
 588   BIT_TABLE(D, ident),
 589   BIT_TABLE(D, interface),
 590   BIT_TABLE(D, lists),
 591   BIT_TABLE(D, load),
 592   BIT_TABLE(D, local_scan),
 593   BIT_TABLE(D, lookup),
 594   BIT_TABLE(D, memory),
 595   BIT_TABLE(D, pid),
 596   BIT_TABLE(D, process_info),
 597   BIT_TABLE(D, queue_run),
 598   BIT_TABLE(D, receive),
 599   BIT_TABLE(D, resolver),
 600   BIT_TABLE(D, retry),
 601   BIT_TABLE(D, rewrite),
 602   BIT_TABLE(D, route),
 603   BIT_TABLE(D, timestamp),
 604   BIT_TABLE(D, tls),
 605   BIT_TABLE(D, transport),
 606   BIT_TABLE(D, uid),
 607   BIT_TABLE(D, verify),
 608 };
 609 int     debug_options_count    = nelem(debug_options);
 610
 611 unsigned int debug_selector    = 0;
 612 BOOL    debug_store            = FALSE;
 613 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 614 uschar *delay_warning_condition=
 615   US"${if or {"
 616             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 617             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 618             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 619             "} {no}{yes}}";
 620 BOOL    delivery_date_remove   = TRUE;
 621 uschar *deliver_address_data   = NULL;
 622 int     deliver_datafile       = -1;
 623 const uschar *deliver_domain   = NULL;
 624 uschar *deliver_domain_data    = NULL;
 625 const uschar *deliver_domain_orig = NULL;
 626 const uschar *deliver_domain_parent = NULL;
 627 BOOL    deliver_drop_privilege = FALSE;
 628 BOOL    deliver_firsttime      = FALSE;
 629 BOOL    deliver_force          = FALSE;
 630 BOOL    deliver_freeze         = FALSE;
 631 time_t  deliver_frozen_at      = 0;
 632 uschar *deliver_home           = NULL;
 633 const uschar *deliver_host     = NULL;
 634 const uschar *deliver_host_address = NULL;
 635 int     deliver_host_port      = 0;
 636 uschar *deliver_in_buffer      = NULL;
 637 ino_t   deliver_inode          = 0;
 638 uschar *deliver_localpart      = NULL;
 639 uschar *deliver_localpart_data = NULL;
 640 uschar *deliver_localpart_orig = NULL;
 641 uschar *deliver_localpart_parent = NULL;
 642 uschar *deliver_localpart_prefix = NULL;
 643 uschar *deliver_localpart_suffix = NULL;
 644 BOOL    deliver_force_thaw     = FALSE;
 645 BOOL    deliver_manual_thaw    = FALSE;
 646 uschar *deliver_out_buffer     = NULL;
 647 int     deliver_queue_load_max = -1;
 648 address_item  *deliver_recipients = NULL;
 649 uschar *deliver_selectstring   = NULL;
 650 BOOL    deliver_selectstring_regex = FALSE;
 651 uschar *deliver_selectstring_sender = NULL;
 652 BOOL    deliver_selectstring_sender_regex = FALSE;
 653 BOOL    disable_callout_flush  = FALSE;
 654 BOOL    disable_delay_flush    = FALSE;
 655 #ifdef ENABLE_DISABLE_FSYNC
 656 BOOL    disable_fsync          = FALSE;
 657 #endif
 658 BOOL    disable_ipv6           = FALSE;
 659 BOOL    disable_logging        = FALSE;
 660
 661 #ifndef DISABLE_DKIM
 662 BOOL    dkim_collect_input       = FALSE;
 663 uschar *dkim_cur_signer          = NULL;
 664 BOOL    dkim_disable_verify      = FALSE;
 665 int     dkim_key_length          = 0;
 666 uschar *dkim_signers             = NULL;
 667 uschar *dkim_signing_domain      = NULL;
 668 uschar *dkim_signing_selector    = NULL;
 669 uschar *dkim_verify_signers      = US"$dkim_signers";
 670 #endif
 671 #ifdef EXPERIMENTAL_DMARC
 672 BOOL    dmarc_has_been_checked  = FALSE;
 673 uschar *dmarc_ar_header         = NULL;
 674 uschar *dmarc_domain_policy     = NULL;
 675 uschar *dmarc_forensic_sender   = NULL;
 676 uschar *dmarc_history_file      = NULL;
 677 uschar *dmarc_status            = NULL;
 678 uschar *dmarc_status_text       = NULL;
 679 uschar *dmarc_tld_file          = NULL;
 680 uschar *dmarc_used_domain       = NULL;
 681 BOOL    dmarc_disable_verify    = FALSE;
 682 BOOL    dmarc_enable_forensic   = FALSE;
 683 #endif
 684
 685 uschar *dns_again_means_nonexist = NULL;
 686 int     dns_csa_search_limit   = 5;
 687 BOOL    dns_csa_use_reverse    = TRUE;
 688 #ifdef EXPERIMENTAL_DANE
 689 int     dns_dane_ok            = -1;
 690 #endif
 691 uschar *dns_ipv4_lookup        = NULL;
 692 int     dns_retrans            = 0;
 693 int     dns_retry              = 0;
 694 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 695 uschar *dns_trust_aa           = NULL;
 696 int     dns_use_edns0          = -1; /* <0 = not coerced */
 697 uschar *dnslist_domain         = NULL;
 698 uschar *dnslist_matched        = NULL;
 699 uschar *dnslist_text           = NULL;
 700 uschar *dnslist_value          = NULL;
 701 tree_node *domainlist_anchor   = NULL;
 702 int     domainlist_count       = 0;
 703 BOOL    dont_deliver           = FALSE;
 704 BOOL    dot_ends               = TRUE;
 705 BOOL    drop_cr                = FALSE;         /* No longer used */
 706 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 707
 708 BOOL    enable_dollar_recipients = FALSE;
 709 BOOL    envelope_to_remove     = TRUE;
 710 int     errno_quota            = ERRNO_QUOTA;
 711 uschar *errors_copy            = NULL;
 712 int     error_handling         = ERRORS_SENDER;
 713 uschar *errors_reply_to        = NULL;
 714 int     errors_sender_rc       = EXIT_FAILURE;
 715 #ifndef DISABLE_EVENT
 716 uschar *event_action             = NULL;        /* expansion for delivery events */
 717 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 718 int     event_defer_errno        = 0;
 719 const uschar *event_name         = NULL;        /* event name variable */
 720 #endif
 721
 722
 723 gid_t   exim_gid               = EXIM_GID;
 724 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 725 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 726                         "\0<---------------Space to patch exim_path->";
 727 uid_t   exim_uid               = EXIM_UID;
 728 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 729 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 730 int     expand_forbid          = 0;
 731 int     expand_nlength[EXPAND_MAXN+1];
 732 int     expand_nmax            = -1;
 733 uschar *expand_nstring[EXPAND_MAXN+1];
 734 BOOL    expand_string_forcedfail = FALSE;
 735 uschar *expand_string_message;
 736 BOOL    extract_addresses_remove_arguments = TRUE;
 737 uschar *extra_local_interfaces = NULL;
 738
 739 int     fake_response          = OK;
 740 uschar *fake_response_text     = US"Your message has been rejected but is "
 741                                    "being kept for evaluation.\nIf it was a "
 742                                    "legitimate message, it may still be "
 743                                    "delivered to the target recipient(s).";
 744 int     filter_n[FILTER_VARIABLE_COUNT];
 745 BOOL    filter_running         = FALSE;
 746 int     filter_sn[FILTER_VARIABLE_COUNT];
 747 int     filter_test            = FTEST_NONE;
 748 uschar *filter_test_sfile      = NULL;
 749 uschar *filter_test_ufile      = NULL;
 750 uschar *filter_thisaddress     = NULL;
 751 int     finduser_retries       = 0;
 752 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 753 uschar *freeze_tell            = NULL;
 754 uschar *freeze_tell_config     = NULL;
 755 uschar *fudged_queue_times     = US"";
 756
 757 uschar *gecos_name             = NULL;
 758 uschar *gecos_pattern          = NULL;
 759 rewrite_rule  *global_rewrite_rules = NULL;
 760
 761 uschar *headers_charset        = US HEADERS_CHARSET;
 762 int     header_insert_maxlen   = 64 * 1024;
 763 header_line  *header_last      = NULL;
 764 header_line  *header_list      = NULL;
 765 int     header_maxsize         = HEADER_MAXSIZE;
 766 int     header_line_maxsize    = 0;
 767
 768 header_name header_names[] = {
 769   /* name               len     allow_resent    htype */
 770   { US"bcc",            3,      TRUE,           htype_bcc },
 771   { US"cc",             2,      TRUE,           htype_cc },
 772   { US"date",           4,      TRUE,           htype_date },
 773   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 774   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 775   { US"from",           4,      TRUE,           htype_from },
 776   { US"message-id",    10,      TRUE,           htype_id },
 777   { US"received",       8,      FALSE,          htype_received },
 778   { US"reply-to",       8,      FALSE,          htype_reply_to },
 779   { US"return-path",   11,      FALSE,          htype_return_path },
 780   { US"sender",         6,      TRUE,           htype_sender },
 781   { US"subject",        7,      FALSE,          htype_subject },
 782   { US"to",             2,      TRUE,           htype_to }
 783 };
 784
 785 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 786
 787 BOOL    header_rewritten       = FALSE;
 788 uschar *helo_accept_junk_hosts = NULL;
 789 uschar *helo_allow_chars       = US"";
 790 uschar *helo_lookup_domains    = US"@ : @[]";
 791 uschar *helo_try_verify_hosts  = NULL;
 792 BOOL    helo_verified          = FALSE;
 793 BOOL    helo_verify_failed     = FALSE;
 794 uschar *helo_verify_hosts      = NULL;
 795 const uschar *hex_digits       = CUS"0123456789abcdef";
 796 uschar *hold_domains           = NULL;
 797 BOOL    host_checking          = FALSE;
 798 BOOL    host_checking_callout  = FALSE;
 799 uschar *host_data              = NULL;
 800 BOOL    host_find_failed_syntax= FALSE;
 801 uschar *host_lookup            = NULL;
 802 BOOL    host_lookup_deferred   = FALSE;
 803 BOOL    host_lookup_failed     = FALSE;
 804 uschar *host_lookup_order      = US"bydns:byaddr";
 805 uschar *host_lookup_msg        = US"";
 806 int     host_number            = 0;
 807 uschar *host_number_string     = NULL;
 808 uschar *host_reject_connection = NULL;
 809 tree_node *hostlist_anchor     = NULL;
 810 int     hostlist_count         = 0;
 811 uschar *hosts_treat_as_local   = NULL;
 812 uschar *hosts_connection_nolog = NULL;
 813
 814 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 815 BOOL    ignore_fromline_local  = FALSE;
 816 uschar *ignore_fromline_hosts  = NULL;
 817 BOOL    inetd_wait_mode        = FALSE;
 818 int     inetd_wait_timeout     = -1;
 819 uschar *initial_cwd            = NULL;
 820 uschar *interface_address      = NULL;
 821 int     interface_port         = -1;
 822 BOOL    is_inetd               = FALSE;
 823 uschar *iterate_item           = NULL;
 824
 825 int     journal_fd             = -1;
 826
 827 uschar *keep_environment       = NULL;
 828
 829 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 830
 831 uschar *eldap_dn               = NULL;
 832 int     load_average           = -2;
 833 BOOL    local_error_message    = FALSE;
 834 BOOL    local_from_check       = TRUE;
 835 uschar *local_from_prefix      = NULL;
 836 uschar *local_from_suffix      = NULL;
 837
 838 #if HAVE_IPV6
 839 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 840 #else
 841 uschar *local_interfaces       = US"0.0.0.0";
 842 #endif
 843
 844 uschar *local_scan_data        = NULL;
 845 int     local_scan_timeout     = 5*60;
 846 BOOL    local_sender_retain    = FALSE;
 847 gid_t   local_user_gid         = (gid_t)(-1);
 848 uid_t   local_user_uid         = (uid_t)(-1);
 849
 850 tree_node *localpartlist_anchor= NULL;
 851 int     localpartlist_count    = 0;
 852 uschar *log_buffer             = NULL;
 853
 854 int     log_default[]          = { /* for initializing log_selector */
 855   Li_acl_warn_skipped,
 856   Li_connection_reject,
 857   Li_delay_delivery,
 858   Li_dnslist_defer,
 859   Li_etrn,
 860   Li_host_lookup_failed,
 861   Li_lost_incoming_connection,
 862   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 863   Li_queue_run,
 864   Li_rejected_header,
 865   Li_retry_defer,
 866   Li_sender_verify_fail,
 867   Li_size_reject,
 868   Li_skip_delivery,
 869   Li_smtp_confirmation,
 870   Li_tls_certificate_verified,
 871   Li_tls_cipher,
 872   -1
 873 };
 874
 875 uschar *log_file_path          = US LOG_FILE_PATH
 876                            "\0<--------------Space to patch log_file_path->";
 877
 878 int     log_notall[]           = {
 879   -1
 880 };
 881 bit_table log_options[]        = { /* must be in alphabetical order */
 882   BIT_TABLE(L, 8bitmime),
 883   BIT_TABLE(L, acl_warn_skipped),
 884   BIT_TABLE(L, address_rewrite),
 885   BIT_TABLE(L, all),
 886   BIT_TABLE(L, all_parents),
 887   BIT_TABLE(L, arguments),
 888   BIT_TABLE(L, connection_reject),
 889   BIT_TABLE(L, delay_delivery),
 890   BIT_TABLE(L, deliver_time),
 891   BIT_TABLE(L, delivery_size),
 892   BIT_TABLE(L, dnslist_defer),
 893   BIT_TABLE(L, dnssec),
 894   BIT_TABLE(L, etrn),
 895   BIT_TABLE(L, host_lookup_failed),
 896   BIT_TABLE(L, ident_timeout),
 897   BIT_TABLE(L, incoming_interface),
 898   BIT_TABLE(L, incoming_port),
 899   BIT_TABLE(L, lost_incoming_connection),
 900   BIT_TABLE(L, millisec),
 901   BIT_TABLE(L, outgoing_interface),
 902   BIT_TABLE(L, outgoing_port),
 903   BIT_TABLE(L, pid),
 904 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 905   BIT_TABLE(L, proxy),
 906 #endif
 907   BIT_TABLE(L, queue_run),
 908   BIT_TABLE(L, queue_time),
 909   BIT_TABLE(L, queue_time_overall),
 910   BIT_TABLE(L, received_recipients),
 911   BIT_TABLE(L, received_sender),
 912   BIT_TABLE(L, rejected_header),
 913   { US"rejected_headers", Li_rejected_header },
 914   BIT_TABLE(L, retry_defer),
 915   BIT_TABLE(L, return_path_on_delivery),
 916   BIT_TABLE(L, sender_on_delivery),
 917   BIT_TABLE(L, sender_verify_fail),
 918   BIT_TABLE(L, size_reject),
 919   BIT_TABLE(L, skip_delivery),
 920   BIT_TABLE(L, smtp_confirmation),
 921   BIT_TABLE(L, smtp_connection),
 922   BIT_TABLE(L, smtp_incomplete_transaction),
 923   BIT_TABLE(L, smtp_mailauth),
 924   BIT_TABLE(L, smtp_no_mail),
 925   BIT_TABLE(L, smtp_protocol_error),
 926   BIT_TABLE(L, smtp_syntax_error),
 927   BIT_TABLE(L, subject),
 928   BIT_TABLE(L, tls_certificate_verified),
 929   BIT_TABLE(L, tls_cipher),
 930   BIT_TABLE(L, tls_peerdn),
 931   BIT_TABLE(L, tls_sni),
 932   BIT_TABLE(L, unknown_in_list),
 933 };
 934 int     log_options_count      = nelem(log_options);
 935
 936 int     log_reject_target      = 0;
 937 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 938 uschar *log_selector_string    = NULL;
 939 FILE   *log_stderr             = NULL;
 940 BOOL    log_testing_mode       = FALSE;
 941 BOOL    log_timezone           = FALSE;
 942 uschar *login_sender_address   = NULL;
 943 uschar *lookup_dnssec_authenticated = NULL;
 944 int     lookup_open_max        = 25;
 945 uschar *lookup_value           = NULL;
 946
 947 uschar *mailstore_basename     = NULL;
 948 #ifdef WITH_CONTENT_SCAN
 949 uschar *malware_name           = NULL;  /* Virus Name */
 950 #endif
 951 int     max_received_linelength= 0;
 952 int     max_username_length    = 0;
 953 int     message_age            = 0;
 954 uschar *message_body           = NULL;
 955 uschar *message_body_end       = NULL;
 956 BOOL    message_body_newlines  = FALSE;
 957 int     message_body_size      = 0;
 958 int     message_body_visible   = 500;
 959 int     message_ended          = END_NOTSTARTED;
 960 uschar *message_headers        = NULL;
 961 uschar *message_id;
 962 uschar *message_id_domain      = NULL;
 963 uschar *message_id_text        = NULL;
 964 struct timeval message_id_tv   = { 0, 0 };
 965 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 966 uschar *message_id_external;
 967 int     message_linecount      = 0;
 968 BOOL    message_logs           = TRUE;
 969 int     message_size           = 0;
 970 uschar *message_size_limit     = US"50M";
 971 #ifdef SUPPORT_I18N
 972 BOOL    message_smtputf8       = FALSE;
 973 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 974 #endif
 975 uschar  message_subdir[2]      = { 0, 0 };
 976 uschar *message_reference      = NULL;
 977
 978 /* MIME ACL expandables */
 979 #ifdef WITH_CONTENT_SCAN
 980 int     mime_anomaly_level     = 0;
 981 const uschar *mime_anomaly_text      = NULL;
 982 uschar *mime_boundary          = NULL;
 983 uschar *mime_charset           = NULL;
 984 uschar *mime_content_description = NULL;
 985 uschar *mime_content_disposition = NULL;
 986 uschar *mime_content_id        = NULL;
 987 unsigned int mime_content_size = 0;
 988 uschar *mime_content_transfer_encoding = NULL;
 989 uschar *mime_content_type      = NULL;
 990 uschar *mime_decoded_filename  = NULL;
 991 uschar *mime_filename          = NULL;
 992 int     mime_is_multipart      = 0;
 993 int     mime_is_coverletter    = 0;
 994 int     mime_is_rfc822         = 0;
 995 int     mime_part_count        = -1;
 996 #endif
 997
 998 BOOL    mua_wrapper            = FALSE;
 999
1000 uid_t  *never_users            = NULL;
1001 #ifdef WITH_CONTENT_SCAN
1002 BOOL    no_mbox_unspool        = FALSE;
1003 #endif
1004 BOOL    no_multiline_responses = FALSE;
1005
1006 const int on                   = 1;     /* for setsockopt */
1007 const int off                  = 0;
1008
1009 uid_t   original_euid;
1010 gid_t   originator_gid;
1011 uschar *originator_login       = NULL;
1012 uschar *originator_name        = NULL;
1013 uid_t   originator_uid;
1014 uschar *override_local_interfaces = NULL;
1015 uschar *override_pid_file_path = NULL;
1016
1017 BOOL    parse_allow_group      = FALSE;
1018 BOOL    parse_found_group      = FALSE;
1019 uschar *percent_hack_domains   = NULL;
1020 uschar *pid_file_path          = US PID_FILE_PATH
1021                            "\0<--------------Space to patch pid_file_path->";
1022 BOOL    pipelining_enable      = TRUE;
1023 uschar *pipelining_advertise_hosts = US"*";
1024 BOOL    preserve_message_logs  = FALSE;
1025 uschar *primary_hostname       = NULL;
1026 BOOL    print_topbitchars      = FALSE;
1027 uschar  process_info[PROCESS_INFO_SIZE];
1028 int     process_info_len       = 0;
1029 uschar *process_log_path       = NULL;
1030 BOOL    prod_requires_admin    = TRUE;
1031
1032 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1033 uschar *hosts_proxy            = US"";
1034 uschar *proxy_external_address = US"";
1035 int     proxy_external_port    = 0;
1036 uschar *proxy_local_address    = US"";
1037 int     proxy_local_port       = 0;
1038 BOOL    proxy_session          = FALSE;
1039 BOOL    proxy_session_failed   = FALSE;
1040 #endif
1041
1042 uschar *prvscheck_address      = NULL;
1043 uschar *prvscheck_keynum       = NULL;
1044 uschar *prvscheck_result       = NULL;
1045
1046
1047 const uschar *qualify_domain_recipient = NULL;
1048 uschar *qualify_domain_sender  = NULL;
1049 BOOL    queue_2stage           = FALSE;
1050 uschar *queue_domains          = NULL;
1051 int     queue_interval         = -1;
1052 BOOL    queue_list_requires_admin = TRUE;
1053 uschar *queue_name             = US"";
1054 BOOL    queue_only             = FALSE;
1055 uschar *queue_only_file        = NULL;
1056 int     queue_only_load        = -1;
1057 BOOL    queue_only_load_latch  = TRUE;
1058 BOOL    queue_only_override    = TRUE;
1059 BOOL    queue_only_policy      = FALSE;
1060 BOOL    queue_run_first_delivery = FALSE;
1061 BOOL    queue_run_force        = FALSE;
1062 BOOL    queue_run_in_order     = FALSE;
1063 BOOL    queue_run_local        = FALSE;
1064 uschar *queue_run_max          = US"5";
1065 pid_t   queue_run_pid          = (pid_t)0;
1066 int     queue_run_pipe         = -1;
1067 BOOL    queue_running          = FALSE;
1068 BOOL    queue_smtp             = FALSE;
1069 uschar *queue_smtp_domains     = NULL;
1070
1071 unsigned int random_seed       = 0;
1072 tree_node *ratelimiters_cmd    = NULL;
1073 tree_node *ratelimiters_conn   = NULL;
1074 tree_node *ratelimiters_mail   = NULL;
1075 uschar *raw_active_hostname    = NULL;
1076 uschar *raw_sender             = NULL;
1077 uschar **raw_recipients        = NULL;
1078 int     raw_recipients_count   = 0;
1079
1080 int     rcpt_count             = 0;
1081 int     rcpt_fail_count        = 0;
1082 int     rcpt_defer_count       = 0;
1083 gid_t   real_gid;
1084 uid_t   real_uid;
1085 BOOL    really_exim            = TRUE;
1086 BOOL    receive_call_bombout   = FALSE;
1087 int     receive_linecount      = 0;
1088 int     receive_messagecount   = 0;
1089 int     receive_timeout        = 0;
1090 int     received_count         = 0;
1091 uschar *received_for           = NULL;
1092
1093 /*  This is the default text for Received headers generated by Exim. The
1094 date  will be automatically added on the end. */
1095
1096 uschar *received_header_text   = US
1097      "Received: "
1098      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1099      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1100      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1101      "by $primary_hostname "
1102      "${if def:received_protocol {with $received_protocol}} "
1103      #ifdef SUPPORT_TLS
1104      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1105      #endif
1106      "(Exim $version_number)\n\t"
1107      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1108      "id $message_exim_id"
1109      "${if def:received_for {\n\tfor $received_for}}"
1110      "\0<---------------Space to patch received_header_text->";
1111
1112 int     received_headers_max   = 30;
1113 uschar *received_protocol      = NULL;
1114 struct timeval received_time   = { 0, 0 };
1115 uschar *recipient_data         = NULL;
1116 uschar *recipient_unqualified_hosts = NULL;
1117 uschar *recipient_verify_failure = NULL;
1118 int     recipients_count       = 0;
1119 BOOL    recipients_discarded   = FALSE;
1120 recipient_item  *recipients_list = NULL;
1121 int     recipients_list_max    = 0;
1122 int     recipients_max         = 0;
1123 BOOL    recipients_max_reject  = FALSE;
1124 const pcre *regex_AUTH         = NULL;
1125 const pcre *regex_check_dns_names = NULL;
1126 const pcre *regex_From         = NULL;
1127 const pcre *regex_IGNOREQUOTA  = NULL;
1128 const pcre *regex_PIPELINING   = NULL;
1129 const pcre *regex_SIZE         = NULL;
1130 const pcre *regex_ismsgid      = NULL;
1131 const pcre *regex_smtp_code    = NULL;
1132 uschar *regex_vars[REGEX_VARS];
1133 #ifdef WHITELIST_D_MACROS
1134 const pcre *regex_whitelisted_macro = NULL;
1135 #endif
1136 #ifdef WITH_CONTENT_SCAN
1137 uschar *regex_match_string     = NULL;
1138 #endif
1139 int     remote_delivery_count  = 0;
1140 int     remote_max_parallel    = 2;
1141 uschar *remote_sort_domains    = NULL;
1142 int     retry_data_expire      = 7*24*60*60;
1143 int     retry_interval_max     = 24*60*60;
1144 int     retry_maximum_timeout  = 0;        /* set from retry config */
1145 retry_config  *retries         = NULL;
1146 uschar *return_path            = NULL;
1147 BOOL    return_path_remove     = TRUE;
1148 int     rewrite_existflags     = 0;
1149 uschar *rfc1413_hosts          = US"@[]";
1150 int     rfc1413_query_timeout  = 0;
1151 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1152 uid_t   root_gid               = ROOT_GID;
1153 uid_t   root_uid               = ROOT_UID;
1154
1155 router_instance  *routers  = NULL;
1156 router_instance  router_defaults = {
1157     .next =                     NULL,
1158     .name =                     NULL,
1159     .info =                     NULL,
1160     .options_block =            NULL,
1161     .driver_name =              NULL,
1162
1163     .address_data =             NULL,
1164 #ifdef EXPERIMENTAL_BRIGHTMAIL
1165     .bmi_rule =                 NULL,
1166 #endif
1167     .cannot_route_message =     NULL,
1168     .condition =                NULL,
1169     .current_directory =        NULL,
1170     .debug_string =             NULL,
1171     .domains =                  NULL,
1172     .errors_to =                NULL,
1173     .expand_gid =               NULL,
1174     .expand_uid =               NULL,
1175     .expand_more =              NULL,
1176     .expand_unseen =            NULL,
1177     .extra_headers =            NULL,
1178     .fallback_hosts =           NULL,
1179     .home_directory =           NULL,
1180     .ignore_target_hosts =      NULL,
1181     .local_parts =              NULL,
1182     .pass_router_name =         NULL,
1183     .prefix =                   NULL,
1184     .redirect_router_name =     NULL,
1185     .remove_headers =           NULL,
1186     .require_files =            NULL,
1187     .router_home_directory =    NULL,
1188     .self =                     US"freeze",
1189     .senders =                  NULL,
1190     .suffix =                   NULL,
1191     .translate_ip_address =     NULL,
1192     .transport_name =           NULL,
1193
1194     .address_test =             TRUE,
1195 #ifdef EXPERIMENTAL_BRIGHTMAIL
1196     .bmi_deliver_alternate =    FALSE,
1197     .bmi_deliver_default =      FALSE,
1198     .bmi_dont_deliver =         FALSE,
1199 #endif
1200     .expn =                     TRUE,
1201     .caseful_local_part =       FALSE,
1202     .check_local_user =         FALSE,
1203     .disable_logging =          FALSE,
1204     .fail_verify_recipient =    FALSE,
1205     .fail_verify_sender =       FALSE,
1206     .gid_set =                  FALSE,
1207     .initgroups =               FALSE,
1208     .log_as_local =             TRUE_UNSET,
1209     .more =                     TRUE,
1210     .pass_on_timeout =          FALSE,
1211     .prefix_optional =          FALSE,
1212     .repeat_use =               TRUE,
1213     .retry_use_local_part =     TRUE_UNSET,
1214     .same_domain_copy_routing = FALSE,
1215     .self_rewrite =             FALSE,
1216     .suffix_optional =          FALSE,
1217     .verify_only =              FALSE,
1218     .verify_recipient =         TRUE,
1219     .verify_sender =            TRUE,
1220     .uid_set =                  FALSE,
1221     .unseen =                   FALSE,
1222     .dsn_lasthop =              FALSE,
1223
1224     .self_code =                self_freeze,
1225     .uid =                      (uid_t)(-1),
1226     .gid =                      (gid_t)(-1),
1227
1228     .fallback_hostlist =        NULL,
1229     .transport =                NULL,
1230     .pass_router =              NULL,
1231     .redirect_router =          NULL,
1232
1233     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1234 };
1235
1236 uschar *router_name            = NULL;
1237
1238 ip_address_item *running_interfaces = NULL;
1239 BOOL    running_in_test_harness = FALSE;
1240
1241 /* This is a weird one. The following string gets patched in the binary by the
1242 script that sets up a copy of Exim for running in the test harness. It seems
1243 that compilers are now clever, and share constant strings if they can.
1244 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1245 make use of the end of this string in order to save space. So the patching then
1246 wrecks this. We defeat this optimization by adding some additional characters
1247 onto the end of the string. */
1248
1249 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1250
1251 int     runrc                  = 0;
1252
1253 uschar *search_error_message   = NULL;
1254 BOOL    search_find_defer      = FALSE;
1255 uschar *self_hostname          = NULL;
1256 uschar *sender_address         = NULL;
1257 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1258 uschar *sender_address_data    = NULL;
1259 BOOL    sender_address_forced  = FALSE;
1260 uschar *sender_address_unrewritten = NULL;
1261 uschar *sender_data            = NULL;
1262 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1263 uschar *sender_fullhost        = NULL;
1264 BOOL    sender_helo_dnssec     = FALSE;
1265 uschar *sender_helo_name       = NULL;
1266 uschar **sender_host_aliases   = &no_aliases;
1267 uschar *sender_host_address    = NULL;
1268 uschar *sender_host_authenticated = NULL;
1269 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1270 BOOL    sender_host_dnssec     = FALSE;
1271 uschar *sender_host_name       = NULL;
1272 int     sender_host_port       = 0;
1273 BOOL    sender_host_notsocket  = FALSE;
1274 BOOL    sender_host_unknown    = FALSE;
1275 uschar *sender_ident           = NULL;
1276 BOOL    sender_local           = FALSE;
1277 BOOL    sender_name_forced     = FALSE;
1278 uschar *sender_rate            = NULL;
1279 uschar *sender_rate_limit      = NULL;
1280 uschar *sender_rate_period     = NULL;
1281 uschar *sender_rcvhost         = NULL;
1282 BOOL    sender_set_untrusted   = FALSE;
1283 uschar *sender_unqualified_hosts = NULL;
1284 uschar *sender_verify_failure = NULL;
1285 address_item *sender_verified_list  = NULL;
1286 address_item *sender_verified_failed = NULL;
1287 int     sender_verified_rc     = -1;
1288 BOOL    sender_verified_responded = FALSE;
1289 uschar *sending_ip_address     = NULL;
1290 int     sending_port           = -1;
1291 SIGNAL_BOOL sigalrm_seen       = FALSE;
1292 uschar **sighup_argv           = NULL;
1293 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1294 int     smtp_accept_count      = 0;
1295 BOOL    smtp_accept_keepalive  = TRUE;
1296 int     smtp_accept_max        = 20;
1297 int     smtp_accept_max_nonmail= 10;
1298 uschar *smtp_accept_max_nonmail_hosts = US"*";
1299 int     smtp_accept_max_per_connection = 1000;
1300 uschar *smtp_accept_max_per_host = NULL;
1301 int     smtp_accept_queue      = 0;
1302 int     smtp_accept_queue_per_connection = 10;
1303 int     smtp_accept_reserve    = 0;
1304 uschar *smtp_active_hostname   = NULL;
1305 BOOL    smtp_authenticated     = FALSE;
1306 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1307                              "Exim $version_number $tod_full"
1308                              "\0<---------------Space to patch smtp_banner->";
1309 BOOL    smtp_batched_input     = FALSE;
1310 BOOL    smtp_check_spool_space = TRUE;
1311 int     smtp_ch_index          = 0;
1312 uschar *smtp_cmd_argument      = NULL;
1313 uschar *smtp_cmd_buffer        = NULL;
1314 struct timeval smtp_connection_start  = {0,0};
1315 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1316 int     smtp_connect_backlog   = 20;
1317 double  smtp_delay_mail        = 0.0;
1318 double  smtp_delay_rcpt        = 0.0;
1319 BOOL    smtp_enforce_sync      = TRUE;
1320 FILE   *smtp_in                = NULL;
1321 BOOL    smtp_input             = FALSE;
1322 int     smtp_load_reserve      = -1;
1323 int     smtp_mailcmd_count     = 0;
1324 FILE   *smtp_out               = NULL;
1325 uschar *smtp_etrn_command      = NULL;
1326 BOOL    smtp_etrn_serialize    = TRUE;
1327 int     smtp_max_synprot_errors= 3;
1328 int     smtp_max_unknown_commands = 3;
1329 uschar *smtp_notquit_reason    = NULL;
1330 uschar *smtp_ratelimit_hosts   = NULL;
1331 uschar *smtp_ratelimit_mail    = NULL;
1332 uschar *smtp_ratelimit_rcpt    = NULL;
1333 uschar *smtp_read_error        = US"";
1334 int     smtp_receive_timeout   = 5*60;
1335 uschar *smtp_receive_timeout_s = NULL;
1336 uschar *smtp_reserve_hosts     = NULL;
1337 BOOL    smtp_return_error_details = FALSE;
1338 int     smtp_rlm_base          = 0;
1339 double  smtp_rlm_factor        = 0.0;
1340 int     smtp_rlm_limit         = 0;
1341 int     smtp_rlm_threshold     = INT_MAX;
1342 int     smtp_rlr_base          = 0;
1343 double  smtp_rlr_factor        = 0.0;
1344 int     smtp_rlr_limit         = 0;
1345 int     smtp_rlr_threshold     = INT_MAX;
1346 unsigned smtp_peer_options     = 0;
1347 unsigned smtp_peer_options_wrap= 0;
1348 #ifdef SUPPORT_I18N
1349 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1350 #endif
1351
1352 #ifdef WITH_CONTENT_SCAN
1353 uschar *spamd_address          = US"127.0.0.1 783";
1354 uschar *spam_bar               = NULL;
1355 uschar *spam_report            = NULL;
1356 uschar *spam_action            = NULL;
1357 uschar *spam_score             = NULL;
1358 uschar *spam_score_int         = NULL;
1359 #endif
1360 #ifdef EXPERIMENTAL_SPF
1361 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1362 uschar *spf_header_comment     = NULL;
1363 uschar *spf_received           = NULL;
1364 uschar *spf_result             = NULL;
1365 uschar *spf_smtp_comment       = NULL;
1366 #endif
1367
1368 BOOL    split_spool_directory  = FALSE;
1369 uschar *spool_directory        = US SPOOL_DIRECTORY
1370                            "\0<--------------Space to patch spool_directory->";
1371 BOOL    spool_file_wireformat  = FALSE;
1372 BOOL    spool_wireformat       = FALSE;
1373 #ifdef EXPERIMENTAL_SRS
1374 uschar *srs_config             = NULL;
1375 uschar *srs_db_address         = NULL;
1376 uschar *srs_db_key             = NULL;
1377 int     srs_hashlength         = 6;
1378 int     srs_hashmin            = -1;
1379 int     srs_maxage             = 31;
1380 uschar *srs_orig_recipient     = NULL;
1381 uschar *srs_orig_sender        = NULL;
1382 uschar *srs_recipient          = NULL;
1383 uschar *srs_secrets            = NULL;
1384 uschar *srs_status             = NULL;
1385 BOOL    srs_usehash            = TRUE;
1386 BOOL    srs_usetimestamp       = TRUE;
1387 #endif
1388 BOOL    strict_acl_vars        = FALSE;
1389 int     string_datestamp_offset= -1;
1390 int     string_datestamp_length= 0;
1391 int     string_datestamp_type  = -1;
1392 BOOL    strip_excess_angle_brackets = FALSE;
1393 BOOL    strip_trailing_dot     = FALSE;
1394 uschar *submission_domain      = NULL;
1395 BOOL    submission_mode        = FALSE;
1396 uschar *submission_name        = NULL;
1397 BOOL    suppress_local_fixups  = FALSE;
1398 BOOL    suppress_local_fixups_default = FALSE;
1399 BOOL    synchronous_delivery   = FALSE;
1400 BOOL    syslog_duplication     = TRUE;
1401 int     syslog_facility        = LOG_MAIL;
1402 BOOL    syslog_pid             = TRUE;
1403 uschar *syslog_processname     = US"exim";
1404 BOOL    syslog_timestamp       = TRUE;
1405 uschar *system_filter          = NULL;
1406
1407 uschar *system_filter_directory_transport = NULL;
1408 uschar *system_filter_file_transport = NULL;
1409 uschar *system_filter_pipe_transport = NULL;
1410 uschar *system_filter_reply_transport = NULL;
1411
1412 gid_t   system_filter_gid      = 0;
1413 BOOL    system_filter_gid_set  = FALSE;
1414 uid_t   system_filter_uid      = (uid_t)-1;
1415 BOOL    system_filter_uid_set  = FALSE;
1416 BOOL    system_filtering       = FALSE;
1417
1418 BOOL    tcp_fastopen_ok        = FALSE;
1419 BOOL    tcp_nodelay            = TRUE;
1420 #ifdef USE_TCP_WRAPPERS
1421 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1422 #endif
1423 int     test_harness_load_avg  = 0;
1424 int     thismessage_size_limit = 0;
1425 int     timeout_frozen_after   = 0;
1426 BOOL    timestamps_utc         = FALSE;
1427
1428 transport_instance  *transports = NULL;
1429
1430 transport_instance  transport_defaults = {
1431     .next =                     NULL,
1432     .name =                     NULL,
1433     .info =                     NULL,
1434     .options_block =            NULL,
1435     .driver_name =              NULL,
1436     .setup =                    NULL,
1437     .batch_max =                1,
1438     .batch_id =                 NULL,
1439     .home_dir =                 NULL,
1440     .current_dir =              NULL,
1441     .expand_multi_domain =      NULL,
1442     .multi_domain =             TRUE,
1443     .overrides_hosts =          FALSE,
1444     .max_addresses =            100,
1445     .connection_max_messages =  500,
1446     .deliver_as_creator =       FALSE,
1447     .disable_logging =          FALSE,
1448     .initgroups =               FALSE,
1449     .uid_set =                  FALSE,
1450     .gid_set =                  FALSE,
1451     .uid =                      (uid_t)(-1),
1452     .gid =                      (gid_t)(-1),
1453     .expand_uid =               NULL,
1454     .expand_gid =               NULL,
1455     .warn_message =             NULL,
1456     .shadow =                   NULL,
1457     .shadow_condition =         NULL,
1458     .filter_command =           NULL,
1459     .add_headers =              NULL,
1460     .remove_headers =           NULL,
1461     .return_path =              NULL,
1462     .debug_string =             NULL,
1463     .max_parallel =             NULL,
1464     .message_size_limit =       NULL,
1465     .headers_rewrite =          NULL,
1466     .rewrite_rules =            NULL,
1467     .rewrite_existflags =       0,
1468     .filter_timeout =           300,
1469     .body_only =                FALSE,
1470     .delivery_date_add =        FALSE,
1471     .envelope_to_add =          FALSE,
1472     .headers_only =             FALSE,
1473     .rcpt_include_affixes =     FALSE,
1474     .return_path_add =          FALSE,
1475     .return_output =            FALSE,
1476     .return_fail_output =       FALSE,
1477     .log_output =               FALSE,
1478     .log_fail_output =          FALSE,
1479     .log_defer_output =         FALSE,
1480     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1481                                                  1 nor 0 so can detect unset */
1482 #ifndef DISABLE_EVENT
1483    .event_action =              NULL
1484 #endif
1485 };
1486
1487 int     transport_count;
1488 uschar *transport_name          = NULL;
1489 int     transport_newlines;
1490 const uschar **transport_filter_argv  = NULL;
1491 int     transport_filter_timeout;
1492 BOOL    transport_filter_timed_out = FALSE;
1493 int     transport_write_timeout= 0;
1494
1495 tree_node  *tree_dns_fails     = NULL;
1496 tree_node  *tree_duplicates    = NULL;
1497 tree_node  *tree_nonrecipients = NULL;
1498 tree_node  *tree_unusable      = NULL;
1499
1500 BOOL    trusted_caller         = FALSE;
1501 BOOL    trusted_config         = TRUE;
1502 gid_t  *trusted_groups         = NULL;
1503 uid_t  *trusted_users          = NULL;
1504 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1505
1506 uschar *unknown_login          = NULL;
1507 uschar *unknown_username       = NULL;
1508 uschar *untrusted_set_sender   = NULL;
1509
1510 /*  A regex for matching a "From_" line in an incoming message, in the form
1511
1512     From ph10 Fri Jan  5 12:35 GMT 1996
1513
1514 which  the "mail" commands send to the MTA (undocumented, of course), or in
1515 the  form
1516
1517     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1518
1519 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1520 Because  of variations in time formats, just match up to the minutes. That
1521 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1522 so  just require one digit for hours and minutes. The weekday is also absent
1523 in  some forms. */
1524
1525 uschar *uucp_from_pattern      = US
1526    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1527    "(?:"                                          /* Non-extracting bracket */
1528    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1529    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1530    ")"                                            /* End alternation */
1531    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1532
1533 uschar *uucp_from_sender       = US"$1";
1534
1535 uschar *verify_mode            = NULL;
1536 uschar *version_copyright      =
1537  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1538    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1539 uschar *version_date           = US"?";
1540 uschar *version_cnumber        = US"????";
1541 uschar *version_string         = US"?";
1542
1543 uschar *warn_message_file      = NULL;
1544 int     warning_count          = 0;
1545 uschar *warnmsg_delay          = NULL;
1546 uschar *warnmsg_recipients     = NULL;
1547 BOOL    write_rejectlog        = TRUE;
1548
1549
1550 /*  End of globals.c */