src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = nelem(optionlist_auths);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible.  Note that these are
 102 only used for smtp connections, not for service-daemon access. */
 103
 104 tls_support tls_in = {
 105  .active =              {.sock = -1},
 106  .bits =                0,
 107  .certificate_verified = FALSE,
 108 #ifdef SUPPORT_DANE
 109  .dane_verified =       FALSE,
 110  .tlsa_usage =          0,
 111 #endif
 112  .cipher =              NULL,
 113  .on_connect =          FALSE,
 114  .on_connect_ports =    NULL,
 115  .ourcert =             NULL,
 116  .peercert =            NULL,
 117  .peerdn =              NULL,
 118  .sni =                 NULL,
 119  .ocsp =                OCSP_NOT_REQ
 120 };
 121 tls_support tls_out = {
 122  .active =              {.sock = -1},
 123  .bits =                0,
 124  .certificate_verified = FALSE,
 125 #ifdef SUPPORT_DANE
 126  .dane_verified =       FALSE,
 127  .tlsa_usage =          0,
 128 #endif
 129  .cipher =              NULL,
 130  .on_connect =          FALSE,
 131  .on_connect_ports =    NULL,
 132  .ourcert =             NULL,
 133  .peercert =            NULL,
 134  .peerdn =              NULL,
 135  .sni =                 NULL,
 136  .ocsp =                OCSP_NOT_REQ
 137 };
 138
 139 uschar *dsn_envid              = NULL;
 140 int     dsn_ret                = 0;
 141 const pcre  *regex_DSN         = NULL;
 142 uschar *dsn_advertise_hosts    = NULL;
 143
 144 #ifdef SUPPORT_TLS
 145 BOOL    gnutls_compat_mode     = FALSE;
 146 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 147 uschar *openssl_options        = NULL;
 148 const pcre *regex_STARTTLS     = NULL;
 149 uschar *tls_advertise_hosts    = US"*";
 150 uschar *tls_certificate        = NULL;
 151 uschar *tls_crl                = NULL;
 152 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 153 that's the interop problem which has been observed: GnuTLS suggesting a higher
 154 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 155 int     tls_dh_max_bits        = 2236;
 156 uschar *tls_dhparam            = NULL;
 157 uschar *tls_eccurve            = US"auto";
 158 # ifndef DISABLE_OCSP
 159 uschar *tls_ocsp_file          = NULL;
 160 # endif
 161 uschar *tls_privatekey         = NULL;
 162 BOOL    tls_remember_esmtp     = FALSE;
 163 uschar *tls_require_ciphers    = NULL;
 164 uschar *tls_try_verify_hosts   = NULL;
 165 uschar *tls_verify_certificates= US"system";
 166 uschar *tls_verify_hosts       = NULL;
 167 #else   /*!SUPPORT_TLS*/
 168 uschar *tls_advertise_hosts    = NULL;
 169 #endif
 170
 171 #ifndef DISABLE_PRDR
 172 /* Per Recipient Data Response variables */
 173 BOOL    prdr_enable            = FALSE;
 174 BOOL    prdr_requested         = FALSE;
 175 const pcre *regex_PRDR         = NULL;
 176 #endif
 177
 178 #ifdef SUPPORT_I18N
 179 const pcre *regex_UTF8         = NULL;
 180 #endif
 181
 182 /* Input-reading functions for messages, so we can use special ones for
 183 incoming TCP/IP. The defaults use stdin. We never need these for any
 184 stand-alone tests. */
 185
 186 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 187 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 188 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 189 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 190 int (*receive_getc)(unsigned)  = stdin_getc;
 191 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 192 void (*receive_get_cache)(void)= NULL;
 193 int (*receive_ungetc)(int)     = stdin_ungetc;
 194 int (*receive_feof)(void)      = stdin_feof;
 195 int (*receive_ferror)(void)    = stdin_ferror;
 196 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 197 #endif
 198
 199
 200 /* List of per-address expansion variables for clearing and saving/restoring
 201 when verifying one address while routing/verifying another. We have to have
 202 the size explicit, because it is referenced from more than one module. */
 203
 204 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 205   CUSS &deliver_address_data,
 206   CUSS &deliver_domain,
 207   CUSS &deliver_domain_data,
 208   CUSS &deliver_domain_orig,
 209   CUSS &deliver_domain_parent,
 210   CUSS &deliver_localpart,
 211   CUSS &deliver_localpart_data,
 212   CUSS &deliver_localpart_orig,
 213   CUSS &deliver_localpart_parent,
 214   CUSS &deliver_localpart_prefix,
 215   CUSS &deliver_localpart_suffix,
 216   CUSS (uschar **)(&deliver_recipients),
 217   CUSS &deliver_host,
 218   CUSS &deliver_home,
 219   CUSS &address_file,
 220   CUSS &address_pipe,
 221   CUSS &self_hostname,
 222   NULL };
 223
 224 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 225
 226 /* General global variables */
 227
 228 header_line *acl_added_headers = NULL;
 229 tree_node *acl_anchor          = NULL;
 230 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 231                                   NULL, NULL, NULL, NULL};
 232 int     acl_narg               = 0;
 233
 234 int     acl_level              = 0;
 235
 236 uschar *acl_not_smtp           = NULL;
 237 #ifdef WITH_CONTENT_SCAN
 238 uschar *acl_not_smtp_mime      = NULL;
 239 #endif
 240 uschar *acl_not_smtp_start     = NULL;
 241 uschar *acl_removed_headers    = NULL;
 242 uschar *acl_smtp_auth          = NULL;
 243 uschar *acl_smtp_connect       = NULL;
 244 uschar *acl_smtp_data          = NULL;
 245 #ifndef DISABLE_PRDR
 246 uschar *acl_smtp_data_prdr     = US"accept";
 247 #endif
 248 #ifndef DISABLE_DKIM
 249 uschar *acl_smtp_dkim          = NULL;
 250 #endif
 251 uschar *acl_smtp_etrn          = NULL;
 252 uschar *acl_smtp_expn          = NULL;
 253 uschar *acl_smtp_helo          = NULL;
 254 uschar *acl_smtp_mail          = NULL;
 255 uschar *acl_smtp_mailauth      = NULL;
 256 #ifdef WITH_CONTENT_SCAN
 257 uschar *acl_smtp_mime          = NULL;
 258 #endif
 259 uschar *acl_smtp_notquit       = NULL;
 260 uschar *acl_smtp_predata       = NULL;
 261 uschar *acl_smtp_quit          = NULL;
 262 uschar *acl_smtp_rcpt          = NULL;
 263 uschar *acl_smtp_starttls      = NULL;
 264 uschar *acl_smtp_vrfy          = NULL;
 265
 266 BOOL    acl_temp_details       = FALSE;
 267 tree_node *acl_var_c           = NULL;
 268 tree_node *acl_var_m           = NULL;
 269 uschar *acl_verify_message     = NULL;
 270 string_item *acl_warn_logged   = NULL;
 271
 272 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 273 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 274
 275 uschar *acl_wherenames[]       = { US"RCPT",
 276                                    US"MAIL",
 277                                    US"PREDATA",
 278                                    US"MIME",
 279                                    US"DKIM",
 280                                    US"DATA",
 281 #ifndef DISABLE_PRDR
 282                                    US"PRDR",
 283 #endif
 284                                    US"non-SMTP",
 285                                    US"AUTH",
 286                                    US"connection",
 287                                    US"ETRN",
 288                                    US"EXPN",
 289                                    US"EHLO or HELO",
 290                                    US"MAILAUTH",
 291                                    US"non-SMTP-start",
 292                                    US"NOTQUIT",
 293                                    US"QUIT",
 294                                    US"STARTTLS",
 295                                    US"VRFY",
 296                                    US"delivery",
 297                                    US"unknown"
 298                                  };
 299
 300 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 301                                    US"550",     /* MAIL */
 302                                    US"550",     /* PREDATA */
 303                                    US"550",     /* MIME */
 304                                    US"550",     /* DKIM */
 305                                    US"550",     /* DATA */
 306 #ifndef DISABLE_PRDR
 307                                    US"550",    /* RCPT PRDR */
 308 #endif
 309                                    US"0",       /* not SMTP; not relevant */
 310                                    US"503",     /* AUTH */
 311                                    US"550",     /* connect */
 312                                    US"458",     /* ETRN */
 313                                    US"550",     /* EXPN */
 314                                    US"550",     /* HELO/EHLO */
 315                                    US"0",       /* MAILAUTH; not relevant */
 316                                    US"0",       /* not SMTP; not relevant */
 317                                    US"0",       /* NOTQUIT; not relevant */
 318                                    US"0",       /* QUIT; not relevant */
 319                                    US"550",     /* STARTTLS */
 320                                    US"252",     /* VRFY */
 321                                    US"0",       /* delivery; not relevant */
 322                                    US"0"        /* unknown; not relevant */
 323                                  };
 324
 325 BOOL    active_local_from_check = FALSE;
 326 BOOL    active_local_sender_retain = FALSE;
 327 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 328 uschar *add_environment        = NULL;
 329 address_item  *addr_duplicate  = NULL;
 330
 331 address_item address_defaults = {
 332   .next =               NULL,
 333   .parent =             NULL,
 334   .first =              NULL,
 335   .dupof =              NULL,
 336   .start_router =       NULL,
 337   .router =             NULL,
 338   .transport =          NULL,
 339   .host_list =          NULL,
 340   .host_used =          NULL,
 341   .fallback_hosts =     NULL,
 342   .reply =              NULL,
 343   .retries =            NULL,
 344   .address =            NULL,
 345   .unique =             NULL,
 346   .cc_local_part =      NULL,
 347   .lc_local_part =      NULL,
 348   .local_part =         NULL,
 349   .prefix =             NULL,
 350   .suffix =             NULL,
 351   .domain =             NULL,
 352   .address_retry_key =  NULL,
 353   .domain_retry_key =   NULL,
 354   .current_dir =        NULL,
 355   .home_dir =           NULL,
 356   .message =            NULL,
 357   .user_message =       NULL,
 358   .onetime_parent =     NULL,
 359   .pipe_expandn =       NULL,
 360   .return_filename =    NULL,
 361   .self_hostname =      NULL,
 362   .shadow_message =     NULL,
 363 #ifdef SUPPORT_TLS
 364   .cipher =             NULL,
 365   .ourcert =            NULL,
 366   .peercert =           NULL,
 367   .peerdn =             NULL,
 368   .ocsp =               OCSP_NOT_REQ,
 369 #endif
 370 #ifdef EXPERIMENTAL_DSN_INFO
 371   .smtp_greeting =      NULL,
 372   .helo_response =      NULL,
 373 #endif
 374   .authenticator =      NULL,
 375   .auth_id =            NULL,
 376   .auth_sndr =          NULL,
 377   .dsn_orcpt =          NULL,
 378   .dsn_flags =          0,
 379   .dsn_aware =          0,
 380   .uid =                (uid_t)(-1),
 381   .gid =                (gid_t)(-1),
 382   .flags =              { 0 },
 383   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 384   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 385   .mode =               -1,
 386   .more_errno =         0,
 387   .delivery_usec =      0,
 388   .basic_errno =        ERRNO_UNKNOWNERROR,
 389   .child_count =        0,
 390   .return_file =        -1,
 391   .special_action =     SPECIAL_NONE,
 392   .transport_return =   DEFER,
 393   .prop = {                                     /* fields that are propagated to children */
 394     .address_data =     NULL,
 395     .domain_data =      NULL,
 396     .localpart_data =   NULL,
 397     .errors_address =   NULL,
 398     .extra_headers =    NULL,
 399     .remove_headers =   NULL,
 400 #ifdef EXPERIMENTAL_SRS
 401     .srs_sender =       NULL,
 402 #endif
 403     .ignore_error =     FALSE,
 404 #ifdef SUPPORT_I18N
 405     .utf8_msg =         FALSE,
 406     .utf8_downcvt =     FALSE,
 407     .utf8_downcvt_maybe = FALSE
 408 #endif
 409   }
 410 };
 411
 412 uschar *address_file           = NULL;
 413 uschar *address_pipe           = NULL;
 414 BOOL    address_test_mode      = FALSE;
 415 tree_node *addresslist_anchor  = NULL;
 416 int     addresslist_count      = 0;
 417 gid_t  *admin_groups           = NULL;
 418 BOOL    admin_user             = FALSE;
 419 BOOL    allow_auth_unadvertised= FALSE;
 420 BOOL    allow_domain_literals  = FALSE;
 421 BOOL    allow_mx_to_ip         = FALSE;
 422 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 423 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 424 BOOL    allow_utf8_domains      = FALSE;
 425
 426 #ifdef EXPERIMENTAL_ARC
 427 struct arc_set *arc_received    = NULL;
 428 int     arc_received_instance   = 0;
 429 int     arc_oldest_pass         = 0;
 430 const uschar *arc_state         = NULL;
 431 const uschar *arc_state_reason  = NULL;
 432 #endif
 433
 434 uschar *authenticated_fail_id  = NULL;
 435 uschar *authenticated_id       = NULL;
 436 uschar *authenticated_sender   = NULL;
 437 BOOL    authentication_failed  = FALSE;
 438 BOOL    authentication_local   = FALSE;
 439 auth_instance  *auths          = NULL;
 440 uschar *auth_advertise_hosts   = US"*";
 441 auth_instance auth_defaults    = {
 442     .next =             NULL,
 443     .name =             NULL,
 444     .info =             NULL,
 445     .options_block =    NULL,
 446     .driver_name =      NULL,
 447     .advertise_condition = NULL,
 448     .client_condition = NULL,
 449     .public_name =      NULL,
 450     .set_id =           NULL,
 451     .set_client_id =    NULL,
 452     .mail_auth_condition = NULL,
 453     .server_debug_string = NULL,
 454     .server_condition = NULL,
 455     .client =           FALSE,
 456     .server =           FALSE,
 457     .advertised =       FALSE
 458 };
 459
 460 uschar *auth_defer_msg         = US"reason not recorded";
 461 uschar *auth_defer_user_msg    = US"";
 462 uschar *auth_vars[AUTH_VARS];
 463 int     auto_thaw              = 0;
 464 #ifdef WITH_CONTENT_SCAN
 465 BOOL    av_failed              = FALSE;
 466 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 467 #endif
 468
 469 BOOL    background_daemon      = TRUE;
 470
 471 #if BASE_62 == 62
 472 uschar *base62_chars=
 473     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 474 #else
 475 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 476 #endif
 477
 478 uschar *bi_command             = NULL;
 479 uschar *big_buffer             = NULL;
 480 int     big_buffer_size        = BIG_BUFFER_SIZE;
 481 #ifdef EXPERIMENTAL_BRIGHTMAIL
 482 uschar *bmi_alt_location       = NULL;
 483 uschar *bmi_base64_tracker_verdict = NULL;
 484 uschar *bmi_base64_verdict     = NULL;
 485 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 486 int     bmi_deliver            = 1;
 487 int     bmi_run                = 0;
 488 uschar *bmi_verdicts           = NULL;
 489 #endif
 490 int     bsmtp_transaction_linecount = 0;
 491 int     body_8bitmime          = 0;
 492 int     body_linecount         = 0;
 493 int     body_zerocount         = 0;
 494 uschar *bounce_message_file    = NULL;
 495 uschar *bounce_message_text    = NULL;
 496 uschar *bounce_recipient       = NULL;
 497 BOOL    bounce_return_body     = TRUE;
 498 int     bounce_return_linesize_limit = 998;
 499 BOOL    bounce_return_message  = TRUE;
 500 int     bounce_return_size_limit = 100*1024;
 501 uschar *bounce_sender_authentication = NULL;
 502
 503 uschar *callout_address        = NULL;
 504 int     callout_cache_domain_positive_expire = 7*24*60*60;
 505 int     callout_cache_domain_negative_expire = 3*60*60;
 506 int     callout_cache_positive_expire = 24*60*60;
 507 int     callout_cache_negative_expire = 2*60*60;
 508 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 509 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 510 int     check_log_inodes       = 100;
 511 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 512 BOOL    check_rfc2047_length   = TRUE;
 513 int     check_spool_inodes     = 100;
 514 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 515
 516 uschar *chunking_advertise_hosts = US"*";
 517 unsigned chunking_datasize     = 0;
 518 unsigned chunking_data_left    = 0;
 519 BOOL    chunking_offered       = FALSE;
 520 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 521 const pcre *regex_CHUNKING     = NULL;
 522
 523 uschar *client_authenticator   = NULL;
 524 uschar *client_authenticated_id = NULL;
 525 uschar *client_authenticated_sender = NULL;
 526 int     clmacro_count          = 0;
 527 uschar *clmacros[MAX_CLMACROS];
 528 BOOL    commandline_checks_require_admin = FALSE;
 529 BOOL    config_changed         = FALSE;
 530 FILE   *config_file            = NULL;
 531 const uschar *config_filename  = NULL;
 532 int     config_lineno          = 0;
 533 #ifdef CONFIGURE_GROUP
 534 gid_t   config_gid             = CONFIGURE_GROUP;
 535 #else
 536 gid_t   config_gid             = 0;
 537 #endif
 538 uschar *config_main_filelist   = US CONFIGURE_FILE
 539                          "\0<-----------Space to patch configure_filename->";
 540 uschar *config_main_filename   = NULL;
 541 uschar *config_main_directory  = NULL;
 542
 543 #ifdef CONFIGURE_OWNER
 544 uid_t   config_uid             = CONFIGURE_OWNER;
 545 #else
 546 uid_t   config_uid             = 0;
 547 #endif
 548
 549 int     connection_max_messages= -1;
 550 uschar *continue_proxy_cipher  = NULL;
 551 uschar *continue_hostname      = NULL;
 552 uschar *continue_host_address  = NULL;
 553 BOOL    continue_more          = FALSE;
 554 int     continue_sequence      = 1;
 555 uschar *continue_transport     = NULL;
 556
 557 uschar *csa_status             = NULL;
 558 cut_t   cutthrough = {
 559   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 560   .delivery =           FALSE,                          /* when to attempt */
 561   .defer_pass =         FALSE,                          /* on defer: spool locally */
 562   .is_tls =             FALSE,                          /* not a TLS conn yet */
 563   .cctx =               {.sock = -1},                   /* open connection */
 564   .nrcpt =              0,                              /* number of addresses */
 565 };
 566
 567 BOOL    daemon_listen          = FALSE;
 568 uschar *daemon_smtp_port       = US"smtp";
 569 int     daemon_startup_retries = 9;
 570 int     daemon_startup_sleep   = 30;
 571
 572 #ifdef EXPERIMENTAL_DCC
 573 BOOL    dcc_direct_add_header  = FALSE;
 574 uschar *dcc_header             = NULL;
 575 uschar *dcc_result             = NULL;
 576 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 577 uschar *dccifd_options         = US"header";
 578 #endif
 579
 580 BOOL    debug_daemon           = FALSE;
 581 int     debug_fd               = -1;
 582 FILE   *debug_file             = NULL;
 583 int     debug_notall[]         = {
 584   Di_memory,
 585   -1
 586 };
 587 bit_table debug_options[]      = { /* must be in alphabetical order */
 588   BIT_TABLE(D, acl),
 589   BIT_TABLE(D, all),
 590   BIT_TABLE(D, auth),
 591   BIT_TABLE(D, deliver),
 592   BIT_TABLE(D, dns),
 593   BIT_TABLE(D, dnsbl),
 594   BIT_TABLE(D, exec),
 595   BIT_TABLE(D, expand),
 596   BIT_TABLE(D, filter),
 597   BIT_TABLE(D, hints_lookup),
 598   BIT_TABLE(D, host_lookup),
 599   BIT_TABLE(D, ident),
 600   BIT_TABLE(D, interface),
 601   BIT_TABLE(D, lists),
 602   BIT_TABLE(D, load),
 603   BIT_TABLE(D, local_scan),
 604   BIT_TABLE(D, lookup),
 605   BIT_TABLE(D, memory),
 606   BIT_TABLE(D, pid),
 607   BIT_TABLE(D, process_info),
 608   BIT_TABLE(D, queue_run),
 609   BIT_TABLE(D, receive),
 610   BIT_TABLE(D, resolver),
 611   BIT_TABLE(D, retry),
 612   BIT_TABLE(D, rewrite),
 613   BIT_TABLE(D, route),
 614   BIT_TABLE(D, timestamp),
 615   BIT_TABLE(D, tls),
 616   BIT_TABLE(D, transport),
 617   BIT_TABLE(D, uid),
 618   BIT_TABLE(D, verify),
 619 };
 620 int     debug_options_count    = nelem(debug_options);
 621
 622 unsigned int debug_selector    = 0;
 623 BOOL    debug_store            = FALSE;
 624 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 625 uschar *delay_warning_condition=
 626   US"${if or {"
 627             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 628             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 629             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 630             "} {no}{yes}}";
 631 BOOL    delivery_date_remove   = TRUE;
 632 uschar *deliver_address_data   = NULL;
 633 int     deliver_datafile       = -1;
 634 const uschar *deliver_domain   = NULL;
 635 uschar *deliver_domain_data    = NULL;
 636 const uschar *deliver_domain_orig = NULL;
 637 const uschar *deliver_domain_parent = NULL;
 638 BOOL    deliver_drop_privilege = FALSE;
 639 BOOL    deliver_firsttime      = FALSE;
 640 BOOL    deliver_force          = FALSE;
 641 BOOL    deliver_freeze         = FALSE;
 642 time_t  deliver_frozen_at      = 0;
 643 uschar *deliver_home           = NULL;
 644 const uschar *deliver_host     = NULL;
 645 const uschar *deliver_host_address = NULL;
 646 int     deliver_host_port      = 0;
 647 uschar *deliver_in_buffer      = NULL;
 648 ino_t   deliver_inode          = 0;
 649 uschar *deliver_localpart      = NULL;
 650 uschar *deliver_localpart_data = NULL;
 651 uschar *deliver_localpart_orig = NULL;
 652 uschar *deliver_localpart_parent = NULL;
 653 uschar *deliver_localpart_prefix = NULL;
 654 uschar *deliver_localpart_suffix = NULL;
 655 BOOL    deliver_force_thaw     = FALSE;
 656 BOOL    deliver_manual_thaw    = FALSE;
 657 uschar *deliver_out_buffer     = NULL;
 658 int     deliver_queue_load_max = -1;
 659 address_item  *deliver_recipients = NULL;
 660 uschar *deliver_selectstring   = NULL;
 661 BOOL    deliver_selectstring_regex = FALSE;
 662 uschar *deliver_selectstring_sender = NULL;
 663 BOOL    deliver_selectstring_sender_regex = FALSE;
 664 BOOL    disable_callout_flush  = FALSE;
 665 BOOL    disable_delay_flush    = FALSE;
 666 #ifdef ENABLE_DISABLE_FSYNC
 667 BOOL    disable_fsync          = FALSE;
 668 #endif
 669 BOOL    disable_ipv6           = FALSE;
 670 BOOL    disable_logging        = FALSE;
 671
 672 #ifndef DISABLE_DKIM
 673 unsigned dkim_collect_input      = 0;
 674 uschar *dkim_cur_signer          = NULL;
 675 BOOL    dkim_disable_verify      = FALSE;
 676 int     dkim_key_length          = 0;
 677 void   *dkim_signatures          = NULL;
 678 uschar *dkim_signers             = NULL;
 679 uschar *dkim_signing_domain      = NULL;
 680 uschar *dkim_signing_selector    = NULL;
 681 uschar *dkim_verify_overall      = NULL;
 682 uschar *dkim_verify_signers      = US"$dkim_signers";
 683 uschar *dkim_verify_status       = NULL;
 684 uschar *dkim_verify_reason       = NULL;
 685 #endif
 686 #ifdef EXPERIMENTAL_DMARC
 687 BOOL    dmarc_has_been_checked  = FALSE;
 688 uschar *dmarc_domain_policy     = NULL;
 689 uschar *dmarc_forensic_sender   = NULL;
 690 uschar *dmarc_history_file      = NULL;
 691 uschar *dmarc_status            = NULL;
 692 uschar *dmarc_status_text       = NULL;
 693 uschar *dmarc_tld_file          = NULL;
 694 uschar *dmarc_used_domain       = NULL;
 695 BOOL    dmarc_disable_verify    = FALSE;
 696 BOOL    dmarc_enable_forensic   = FALSE;
 697 #endif
 698
 699 uschar *dns_again_means_nonexist = NULL;
 700 int     dns_csa_search_limit   = 5;
 701 BOOL    dns_csa_use_reverse    = TRUE;
 702 int     dns_cname_loops        = 1;
 703 #ifdef SUPPORT_DANE
 704 int     dns_dane_ok            = -1;
 705 #endif
 706 uschar *dns_ipv4_lookup        = NULL;
 707 int     dns_retrans            = 0;
 708 int     dns_retry              = 0;
 709 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 710 uschar *dns_trust_aa           = NULL;
 711 int     dns_use_edns0          = -1; /* <0 = not coerced */
 712 uschar *dnslist_domain         = NULL;
 713 uschar *dnslist_matched        = NULL;
 714 uschar *dnslist_text           = NULL;
 715 uschar *dnslist_value          = NULL;
 716 tree_node *domainlist_anchor   = NULL;
 717 int     domainlist_count       = 0;
 718 BOOL    dont_deliver           = FALSE;
 719 BOOL    dot_ends               = TRUE;
 720 BOOL    drop_cr                = FALSE;         /* No longer used */
 721 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 722
 723 BOOL    enable_dollar_recipients = FALSE;
 724 BOOL    envelope_to_remove     = TRUE;
 725 int     errno_quota            = ERRNO_QUOTA;
 726 uschar *errors_copy            = NULL;
 727 int     error_handling         = ERRORS_SENDER;
 728 uschar *errors_reply_to        = NULL;
 729 int     errors_sender_rc       = EXIT_FAILURE;
 730 #ifndef DISABLE_EVENT
 731 uschar *event_action             = NULL;        /* expansion for delivery events */
 732 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 733 int     event_defer_errno        = 0;
 734 const uschar *event_name         = NULL;        /* event name variable */
 735 #endif
 736
 737
 738 gid_t   exim_gid               = EXIM_GID;
 739 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 740 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 741                         "\0<---------------Space to patch exim_path->";
 742 uid_t   exim_uid               = EXIM_UID;
 743 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 744 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 745 int     expand_forbid          = 0;
 746 int     expand_nlength[EXPAND_MAXN+1];
 747 int     expand_nmax            = -1;
 748 uschar *expand_nstring[EXPAND_MAXN+1];
 749 BOOL    expand_string_forcedfail = FALSE;
 750 uschar *expand_string_message;
 751 BOOL    extract_addresses_remove_arguments = TRUE;
 752 uschar *extra_local_interfaces = NULL;
 753
 754 int     fake_response          = OK;
 755 uschar *fake_response_text     = US"Your message has been rejected but is "
 756                                    "being kept for evaluation.\nIf it was a "
 757                                    "legitimate message, it may still be "
 758                                    "delivered to the target recipient(s).";
 759 int     filter_n[FILTER_VARIABLE_COUNT];
 760 BOOL    filter_running         = FALSE;
 761 int     filter_sn[FILTER_VARIABLE_COUNT];
 762 int     filter_test            = FTEST_NONE;
 763 uschar *filter_test_sfile      = NULL;
 764 uschar *filter_test_ufile      = NULL;
 765 uschar *filter_thisaddress     = NULL;
 766 int     finduser_retries       = 0;
 767 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 768 uschar *freeze_tell            = NULL;
 769 uschar *freeze_tell_config     = NULL;
 770 uschar *fudged_queue_times     = US"";
 771
 772 uschar *gecos_name             = NULL;
 773 uschar *gecos_pattern          = NULL;
 774 rewrite_rule  *global_rewrite_rules = NULL;
 775
 776 volatile sig_atomic_t had_command_timeout = 0;
 777 volatile sig_atomic_t had_command_sigterm = 0;
 778 volatile sig_atomic_t had_data_timeout    = 0;
 779 volatile sig_atomic_t had_data_sigint     = 0;
 780 uschar *headers_charset        = US HEADERS_CHARSET;
 781 int     header_insert_maxlen   = 64 * 1024;
 782 header_line  *header_last      = NULL;
 783 header_line  *header_list      = NULL;
 784 int     header_maxsize         = HEADER_MAXSIZE;
 785 int     header_line_maxsize    = 0;
 786
 787 header_name header_names[] = {
 788   /* name               len     allow_resent    htype */
 789   { US"bcc",            3,      TRUE,           htype_bcc },
 790   { US"cc",             2,      TRUE,           htype_cc },
 791   { US"date",           4,      TRUE,           htype_date },
 792   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 793   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 794   { US"from",           4,      TRUE,           htype_from },
 795   { US"message-id",    10,      TRUE,           htype_id },
 796   { US"received",       8,      FALSE,          htype_received },
 797   { US"reply-to",       8,      FALSE,          htype_reply_to },
 798   { US"return-path",   11,      FALSE,          htype_return_path },
 799   { US"sender",         6,      TRUE,           htype_sender },
 800   { US"subject",        7,      FALSE,          htype_subject },
 801   { US"to",             2,      TRUE,           htype_to }
 802 };
 803
 804 int header_names_size          = nelem(header_names);
 805
 806 BOOL    header_rewritten       = FALSE;
 807 uschar *helo_accept_junk_hosts = NULL;
 808 uschar *helo_allow_chars       = US"";
 809 uschar *helo_lookup_domains    = US"@ : @[]";
 810 uschar *helo_try_verify_hosts  = NULL;
 811 BOOL    helo_verified          = FALSE;
 812 BOOL    helo_verify_failed     = FALSE;
 813 uschar *helo_verify_hosts      = NULL;
 814 const uschar *hex_digits       = CUS"0123456789abcdef";
 815 uschar *hold_domains           = NULL;
 816 BOOL    host_checking          = FALSE;
 817 BOOL    host_checking_callout  = FALSE;
 818 uschar *host_data              = NULL;
 819 BOOL    host_find_failed_syntax= FALSE;
 820 uschar *host_lookup            = NULL;
 821 BOOL    host_lookup_deferred   = FALSE;
 822 BOOL    host_lookup_failed     = FALSE;
 823 uschar *host_lookup_order      = US"bydns:byaddr";
 824 uschar *host_lookup_msg        = US"";
 825 int     host_number            = 0;
 826 uschar *host_number_string     = NULL;
 827 uschar *host_reject_connection = NULL;
 828 tree_node *hostlist_anchor     = NULL;
 829 int     hostlist_count         = 0;
 830 uschar *hosts_treat_as_local   = NULL;
 831 uschar *hosts_connection_nolog = NULL;
 832
 833 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 834 BOOL    ignore_fromline_local  = FALSE;
 835 uschar *ignore_fromline_hosts  = NULL;
 836 BOOL    inetd_wait_mode        = FALSE;
 837 int     inetd_wait_timeout     = -1;
 838 uschar *initial_cwd            = NULL;
 839 uschar *interface_address      = NULL;
 840 int     interface_port         = -1;
 841 BOOL    is_inetd               = FALSE;
 842 uschar *iterate_item           = NULL;
 843
 844 int     journal_fd             = -1;
 845
 846 uschar *keep_environment       = NULL;
 847
 848 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 849
 850 uschar *eldap_dn               = NULL;
 851 int     load_average           = -2;
 852 BOOL    local_error_message    = FALSE;
 853 BOOL    local_from_check       = TRUE;
 854 uschar *local_from_prefix      = NULL;
 855 uschar *local_from_suffix      = NULL;
 856
 857 #if HAVE_IPV6
 858 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 859 #else
 860 uschar *local_interfaces       = US"0.0.0.0";
 861 #endif
 862
 863 #ifdef HAVE_LOCAL_SCAN
 864 uschar *local_scan_data        = NULL;
 865 int     local_scan_timeout     = 5*60;
 866 #endif
 867 BOOL    local_sender_retain    = FALSE;
 868 gid_t   local_user_gid         = (gid_t)(-1);
 869 uid_t   local_user_uid         = (uid_t)(-1);
 870
 871 tree_node *localpartlist_anchor= NULL;
 872 int     localpartlist_count    = 0;
 873 uschar *log_buffer             = NULL;
 874
 875 int     log_default[]          = { /* for initializing log_selector */
 876   Li_acl_warn_skipped,
 877   Li_connection_reject,
 878   Li_delay_delivery,
 879   Li_dkim,
 880   Li_dnslist_defer,
 881   Li_etrn,
 882   Li_host_lookup_failed,
 883   Li_lost_incoming_connection,
 884   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 885   Li_queue_run,
 886   Li_rejected_header,
 887   Li_retry_defer,
 888   Li_sender_verify_fail,
 889   Li_size_reject,
 890   Li_skip_delivery,
 891   Li_smtp_confirmation,
 892   Li_tls_certificate_verified,
 893   Li_tls_cipher,
 894   -1
 895 };
 896
 897 uschar *log_file_path          = US LOG_FILE_PATH
 898                            "\0<--------------Space to patch log_file_path->";
 899
 900 int     log_notall[]           = {
 901   -1
 902 };
 903 bit_table log_options[]        = { /* must be in alphabetical order */
 904   BIT_TABLE(L, 8bitmime),
 905   BIT_TABLE(L, acl_warn_skipped),
 906   BIT_TABLE(L, address_rewrite),
 907   BIT_TABLE(L, all),
 908   BIT_TABLE(L, all_parents),
 909   BIT_TABLE(L, arguments),
 910   BIT_TABLE(L, connection_reject),
 911   BIT_TABLE(L, delay_delivery),
 912   BIT_TABLE(L, deliver_time),
 913   BIT_TABLE(L, delivery_size),
 914 #ifndef DISABLE_DKIM
 915   BIT_TABLE(L, dkim),
 916   BIT_TABLE(L, dkim_verbose),
 917 #endif
 918   BIT_TABLE(L, dnslist_defer),
 919   BIT_TABLE(L, dnssec),
 920   BIT_TABLE(L, etrn),
 921   BIT_TABLE(L, host_lookup_failed),
 922   BIT_TABLE(L, ident_timeout),
 923   BIT_TABLE(L, incoming_interface),
 924   BIT_TABLE(L, incoming_port),
 925   BIT_TABLE(L, lost_incoming_connection),
 926   BIT_TABLE(L, millisec),
 927   BIT_TABLE(L, outgoing_interface),
 928   BIT_TABLE(L, outgoing_port),
 929   BIT_TABLE(L, pid),
 930 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 931   BIT_TABLE(L, proxy),
 932 #endif
 933   BIT_TABLE(L, queue_run),
 934   BIT_TABLE(L, queue_time),
 935   BIT_TABLE(L, queue_time_overall),
 936   BIT_TABLE(L, receive_time),
 937   BIT_TABLE(L, received_recipients),
 938   BIT_TABLE(L, received_sender),
 939   BIT_TABLE(L, rejected_header),
 940   { US"rejected_headers", Li_rejected_header },
 941   BIT_TABLE(L, retry_defer),
 942   BIT_TABLE(L, return_path_on_delivery),
 943   BIT_TABLE(L, sender_on_delivery),
 944   BIT_TABLE(L, sender_verify_fail),
 945   BIT_TABLE(L, size_reject),
 946   BIT_TABLE(L, skip_delivery),
 947   BIT_TABLE(L, smtp_confirmation),
 948   BIT_TABLE(L, smtp_connection),
 949   BIT_TABLE(L, smtp_incomplete_transaction),
 950   BIT_TABLE(L, smtp_mailauth),
 951   BIT_TABLE(L, smtp_no_mail),
 952   BIT_TABLE(L, smtp_protocol_error),
 953   BIT_TABLE(L, smtp_syntax_error),
 954   BIT_TABLE(L, subject),
 955   BIT_TABLE(L, tls_certificate_verified),
 956   BIT_TABLE(L, tls_cipher),
 957   BIT_TABLE(L, tls_peerdn),
 958   BIT_TABLE(L, tls_sni),
 959   BIT_TABLE(L, unknown_in_list),
 960 };
 961 int     log_options_count      = nelem(log_options);
 962
 963 int     log_reject_target      = 0;
 964 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 965 uschar *log_selector_string    = NULL;
 966 FILE   *log_stderr             = NULL;
 967 BOOL    log_testing_mode       = FALSE;
 968 BOOL    log_timezone           = FALSE;
 969 uschar *login_sender_address   = NULL;
 970 uschar *lookup_dnssec_authenticated = NULL;
 971 int     lookup_open_max        = 25;
 972 uschar *lookup_value           = NULL;
 973
 974 macro_item *macros_user        = NULL;
 975 uschar *mailstore_basename     = NULL;
 976 #ifdef WITH_CONTENT_SCAN
 977 uschar *malware_name           = NULL;  /* Virus Name */
 978 #endif
 979 int     max_received_linelength= 0;
 980 int     max_username_length    = 0;
 981 int     message_age            = 0;
 982 uschar *message_body           = NULL;
 983 uschar *message_body_end       = NULL;
 984 BOOL    message_body_newlines  = FALSE;
 985 int     message_body_size      = 0;
 986 int     message_body_visible   = 500;
 987 int     message_ended          = END_NOTSTARTED;
 988 uschar *message_headers        = NULL;
 989 uschar *message_id;
 990 uschar *message_id_domain      = NULL;
 991 uschar *message_id_text        = NULL;
 992 struct timeval message_id_tv   = { 0, 0 };
 993 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 994 uschar *message_id_external;
 995 int     message_linecount      = 0;
 996 BOOL    message_logs           = TRUE;
 997 int     message_size           = 0;
 998 uschar *message_size_limit     = US"50M";
 999 #ifdef SUPPORT_I18N
1000 BOOL    message_smtputf8       = FALSE;
1001 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1002 #endif
1003 uschar  message_subdir[2]      = { 0, 0 };
1004 uschar *message_reference      = NULL;
1005
1006 /* MIME ACL expandables */
1007 #ifdef WITH_CONTENT_SCAN
1008 int     mime_anomaly_level     = 0;
1009 const uschar *mime_anomaly_text      = NULL;
1010 uschar *mime_boundary          = NULL;
1011 uschar *mime_charset           = NULL;
1012 uschar *mime_content_description = NULL;
1013 uschar *mime_content_disposition = NULL;
1014 uschar *mime_content_id        = NULL;
1015 unsigned int mime_content_size = 0;
1016 uschar *mime_content_transfer_encoding = NULL;
1017 uschar *mime_content_type      = NULL;
1018 uschar *mime_decoded_filename  = NULL;
1019 uschar *mime_filename          = NULL;
1020 int     mime_is_multipart      = 0;
1021 int     mime_is_coverletter    = 0;
1022 int     mime_is_rfc822         = 0;
1023 int     mime_part_count        = -1;
1024 #endif
1025
1026 BOOL    mua_wrapper            = FALSE;
1027
1028 uid_t  *never_users            = NULL;
1029 #ifdef WITH_CONTENT_SCAN
1030 BOOL    no_mbox_unspool        = FALSE;
1031 #endif
1032 BOOL    no_multiline_responses = FALSE;
1033
1034 const int on                   = 1;     /* for setsockopt */
1035 const int off                  = 0;
1036
1037 uid_t   original_euid;
1038 gid_t   originator_gid;
1039 uschar *originator_login       = NULL;
1040 uschar *originator_name        = NULL;
1041 uid_t   originator_uid;
1042 uschar *override_local_interfaces = NULL;
1043 uschar *override_pid_file_path = NULL;
1044
1045 BOOL    parse_allow_group      = FALSE;
1046 BOOL    parse_found_group      = FALSE;
1047 uschar *percent_hack_domains   = NULL;
1048 uschar *pid_file_path          = US PID_FILE_PATH
1049                            "\0<--------------Space to patch pid_file_path->";
1050 BOOL    pipelining_enable      = TRUE;
1051 uschar *pipelining_advertise_hosts = US"*";
1052 BOOL    preserve_message_logs  = FALSE;
1053 uschar *primary_hostname       = NULL;
1054 BOOL    print_topbitchars      = FALSE;
1055 uschar  process_info[PROCESS_INFO_SIZE];
1056 int     process_info_len       = 0;
1057 uschar *process_log_path       = NULL;
1058 BOOL    prod_requires_admin    = TRUE;
1059
1060 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1061 uschar *hosts_proxy            = US"";
1062 uschar *proxy_external_address = US"";
1063 int     proxy_external_port    = 0;
1064 uschar *proxy_local_address    = US"";
1065 int     proxy_local_port       = 0;
1066 BOOL    proxy_session          = FALSE;
1067 BOOL    proxy_session_failed   = FALSE;
1068 #endif
1069
1070 uschar *prvscheck_address      = NULL;
1071 uschar *prvscheck_keynum       = NULL;
1072 uschar *prvscheck_result       = NULL;
1073
1074
1075 const uschar *qualify_domain_recipient = NULL;
1076 uschar *qualify_domain_sender  = NULL;
1077 BOOL    queue_2stage           = FALSE;
1078 uschar *queue_domains          = NULL;
1079 int     queue_interval         = -1;
1080 BOOL    queue_list_requires_admin = TRUE;
1081 uschar *queue_name             = US"";
1082 BOOL    queue_only             = FALSE;
1083 uschar *queue_only_file        = NULL;
1084 int     queue_only_load        = -1;
1085 BOOL    queue_only_load_latch  = TRUE;
1086 BOOL    queue_only_override    = TRUE;
1087 BOOL    queue_only_policy      = FALSE;
1088 BOOL    queue_run_first_delivery = FALSE;
1089 BOOL    queue_run_force        = FALSE;
1090 BOOL    queue_run_in_order     = FALSE;
1091 BOOL    queue_run_local        = FALSE;
1092 uschar *queue_run_max          = US"5";
1093 pid_t   queue_run_pid          = (pid_t)0;
1094 int     queue_run_pipe         = -1;
1095 BOOL    queue_running          = FALSE;
1096 BOOL    queue_smtp             = FALSE;
1097 uschar *queue_smtp_domains     = NULL;
1098
1099 unsigned int random_seed       = 0;
1100 tree_node *ratelimiters_cmd    = NULL;
1101 tree_node *ratelimiters_conn   = NULL;
1102 tree_node *ratelimiters_mail   = NULL;
1103 uschar *raw_active_hostname    = NULL;
1104 uschar *raw_sender             = NULL;
1105 uschar **raw_recipients        = NULL;
1106 int     raw_recipients_count   = 0;
1107
1108 int     rcpt_count             = 0;
1109 int     rcpt_fail_count        = 0;
1110 int     rcpt_defer_count       = 0;
1111 gid_t   real_gid;
1112 uid_t   real_uid;
1113 BOOL    really_exim            = TRUE;
1114 BOOL    receive_call_bombout   = FALSE;
1115 int     receive_linecount      = 0;
1116 int     receive_messagecount   = 0;
1117 int     receive_timeout        = 0;
1118 int     received_count         = 0;
1119 uschar *received_for           = NULL;
1120
1121 /*  This is the default text for Received headers generated by Exim. The
1122 date  will be automatically added on the end. */
1123
1124 uschar *received_header_text   = US
1125      "Received: "
1126      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1127      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1128      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1129      "by $primary_hostname "
1130      "${if def:received_protocol {with $received_protocol}} "
1131      #ifdef SUPPORT_TLS
1132      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1133      #endif
1134      "(Exim $version_number)\n\t"
1135      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1136      "id $message_exim_id"
1137      "${if def:received_for {\n\tfor $received_for}}"
1138      "\0<---------------Space to patch received_header_text->";
1139
1140 int     received_headers_max   = 30;
1141 uschar *received_protocol      = NULL;
1142 struct timeval received_time   = { 0, 0 };
1143 struct timeval received_time_taken = { 0, 0 };
1144 uschar *recipient_data         = NULL;
1145 uschar *recipient_unqualified_hosts = NULL;
1146 uschar *recipient_verify_failure = NULL;
1147 int     recipients_count       = 0;
1148 BOOL    recipients_discarded   = FALSE;
1149 recipient_item  *recipients_list = NULL;
1150 int     recipients_list_max    = 0;
1151 int     recipients_max         = 0;
1152 BOOL    recipients_max_reject  = FALSE;
1153 const pcre *regex_AUTH         = NULL;
1154 const pcre *regex_check_dns_names = NULL;
1155 const pcre *regex_From         = NULL;
1156 const pcre *regex_IGNOREQUOTA  = NULL;
1157 const pcre *regex_PIPELINING   = NULL;
1158 const pcre *regex_SIZE         = NULL;
1159 const pcre *regex_ismsgid      = NULL;
1160 const pcre *regex_smtp_code    = NULL;
1161 uschar *regex_vars[REGEX_VARS];
1162 #ifdef WHITELIST_D_MACROS
1163 const pcre *regex_whitelisted_macro = NULL;
1164 #endif
1165 #ifdef WITH_CONTENT_SCAN
1166 uschar *regex_match_string     = NULL;
1167 #endif
1168 int     remote_delivery_count  = 0;
1169 int     remote_max_parallel    = 2;
1170 uschar *remote_sort_domains    = NULL;
1171 int     retry_data_expire      = 7*24*60*60;
1172 int     retry_interval_max     = 24*60*60;
1173 int     retry_maximum_timeout  = 0;        /* set from retry config */
1174 retry_config  *retries         = NULL;
1175 uschar *return_path            = NULL;
1176 BOOL    return_path_remove     = TRUE;
1177 int     rewrite_existflags     = 0;
1178 uschar *rfc1413_hosts          = US"@[]";
1179 int     rfc1413_query_timeout  = 0;
1180 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1181 uid_t   root_gid               = ROOT_GID;
1182 uid_t   root_uid               = ROOT_UID;
1183
1184 router_instance  *routers  = NULL;
1185 router_instance  router_defaults = {
1186     .next =                     NULL,
1187     .name =                     NULL,
1188     .info =                     NULL,
1189     .options_block =            NULL,
1190     .driver_name =              NULL,
1191
1192     .address_data =             NULL,
1193 #ifdef EXPERIMENTAL_BRIGHTMAIL
1194     .bmi_rule =                 NULL,
1195 #endif
1196     .cannot_route_message =     NULL,
1197     .condition =                NULL,
1198     .current_directory =        NULL,
1199     .debug_string =             NULL,
1200     .domains =                  NULL,
1201     .errors_to =                NULL,
1202     .expand_gid =               NULL,
1203     .expand_uid =               NULL,
1204     .expand_more =              NULL,
1205     .expand_unseen =            NULL,
1206     .extra_headers =            NULL,
1207     .fallback_hosts =           NULL,
1208     .home_directory =           NULL,
1209     .ignore_target_hosts =      NULL,
1210     .local_parts =              NULL,
1211     .pass_router_name =         NULL,
1212     .prefix =                   NULL,
1213     .redirect_router_name =     NULL,
1214     .remove_headers =           NULL,
1215     .require_files =            NULL,
1216     .router_home_directory =    NULL,
1217     .self =                     US"freeze",
1218     .senders =                  NULL,
1219     .suffix =                   NULL,
1220     .translate_ip_address =     NULL,
1221     .transport_name =           NULL,
1222
1223     .address_test =             TRUE,
1224 #ifdef EXPERIMENTAL_BRIGHTMAIL
1225     .bmi_deliver_alternate =    FALSE,
1226     .bmi_deliver_default =      FALSE,
1227     .bmi_dont_deliver =         FALSE,
1228 #endif
1229     .expn =                     TRUE,
1230     .caseful_local_part =       FALSE,
1231     .check_local_user =         FALSE,
1232     .disable_logging =          FALSE,
1233     .fail_verify_recipient =    FALSE,
1234     .fail_verify_sender =       FALSE,
1235     .gid_set =                  FALSE,
1236     .initgroups =               FALSE,
1237     .log_as_local =             TRUE_UNSET,
1238     .more =                     TRUE,
1239     .pass_on_timeout =          FALSE,
1240     .prefix_optional =          FALSE,
1241     .repeat_use =               TRUE,
1242     .retry_use_local_part =     TRUE_UNSET,
1243     .same_domain_copy_routing = FALSE,
1244     .self_rewrite =             FALSE,
1245     .suffix_optional =          FALSE,
1246     .verify_only =              FALSE,
1247     .verify_recipient =         TRUE,
1248     .verify_sender =            TRUE,
1249     .uid_set =                  FALSE,
1250     .unseen =                   FALSE,
1251     .dsn_lasthop =              FALSE,
1252
1253     .self_code =                self_freeze,
1254     .uid =                      (uid_t)(-1),
1255     .gid =                      (gid_t)(-1),
1256
1257     .fallback_hostlist =        NULL,
1258     .transport =                NULL,
1259     .pass_router =              NULL,
1260     .redirect_router =          NULL,
1261
1262     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1263 };
1264
1265 uschar *router_name            = NULL;
1266
1267 ip_address_item *running_interfaces = NULL;
1268 BOOL    running_in_test_harness = FALSE;
1269
1270 /* This is a weird one. The following string gets patched in the binary by the
1271 script that sets up a copy of Exim for running in the test harness. It seems
1272 that compilers are now clever, and share constant strings if they can.
1273 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1274 make use of the end of this string in order to save space. So the patching then
1275 wrecks this. We defeat this optimization by adding some additional characters
1276 onto the end of the string. */
1277
1278 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1279
1280 int     runrc                  = 0;
1281
1282 uschar *search_error_message   = NULL;
1283 BOOL    search_find_defer      = FALSE;
1284 uschar *self_hostname          = NULL;
1285 uschar *sender_address         = NULL;
1286 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1287 uschar *sender_address_data    = NULL;
1288 BOOL    sender_address_forced  = FALSE;
1289 uschar *sender_address_unrewritten = NULL;
1290 uschar *sender_data            = NULL;
1291 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1292 uschar *sender_fullhost        = NULL;
1293 BOOL    sender_helo_dnssec     = FALSE;
1294 uschar *sender_helo_name       = NULL;
1295 uschar **sender_host_aliases   = &no_aliases;
1296 uschar *sender_host_address    = NULL;
1297 uschar *sender_host_authenticated = NULL;
1298 uschar *sender_host_auth_pubname  = NULL;
1299 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1300 BOOL    sender_host_dnssec     = FALSE;
1301 uschar *sender_host_name       = NULL;
1302 int     sender_host_port       = 0;
1303 BOOL    sender_host_notsocket  = FALSE;
1304 BOOL    sender_host_unknown    = FALSE;
1305 uschar *sender_ident           = NULL;
1306 BOOL    sender_local           = FALSE;
1307 BOOL    sender_name_forced     = FALSE;
1308 uschar *sender_rate            = NULL;
1309 uschar *sender_rate_limit      = NULL;
1310 uschar *sender_rate_period     = NULL;
1311 uschar *sender_rcvhost         = NULL;
1312 BOOL    sender_set_untrusted   = FALSE;
1313 uschar *sender_unqualified_hosts = NULL;
1314 uschar *sender_verify_failure = NULL;
1315 address_item *sender_verified_list  = NULL;
1316 address_item *sender_verified_failed = NULL;
1317 int     sender_verified_rc     = -1;
1318 BOOL    sender_verified_responded = FALSE;
1319 uschar *sending_ip_address     = NULL;
1320 int     sending_port           = -1;
1321 SIGNAL_BOOL sigalrm_seen       = FALSE;
1322 uschar **sighup_argv           = NULL;
1323 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1324 int     smtp_accept_count      = 0;
1325 BOOL    smtp_accept_keepalive  = TRUE;
1326 int     smtp_accept_max        = 20;
1327 int     smtp_accept_max_nonmail= 10;
1328 uschar *smtp_accept_max_nonmail_hosts = US"*";
1329 int     smtp_accept_max_per_connection = 1000;
1330 uschar *smtp_accept_max_per_host = NULL;
1331 int     smtp_accept_queue      = 0;
1332 int     smtp_accept_queue_per_connection = 10;
1333 int     smtp_accept_reserve    = 0;
1334 uschar *smtp_active_hostname   = NULL;
1335 BOOL    smtp_authenticated     = FALSE;
1336 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1337                              "Exim $version_number $tod_full"
1338                              "\0<---------------Space to patch smtp_banner->";
1339 BOOL    smtp_batched_input     = FALSE;
1340 BOOL    smtp_check_spool_space = TRUE;
1341 int     smtp_ch_index          = 0;
1342 uschar *smtp_cmd_argument      = NULL;
1343 uschar *smtp_cmd_buffer        = NULL;
1344 struct timeval smtp_connection_start  = {0,0};
1345 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1346 int     smtp_connect_backlog   = 20;
1347 double  smtp_delay_mail        = 0.0;
1348 double  smtp_delay_rcpt        = 0.0;
1349 BOOL    smtp_enforce_sync      = TRUE;
1350 FILE   *smtp_in                = NULL;
1351 BOOL    smtp_input             = FALSE;
1352 int     smtp_load_reserve      = -1;
1353 int     smtp_mailcmd_count     = 0;
1354 FILE   *smtp_out               = NULL;
1355 uschar *smtp_etrn_command      = NULL;
1356 BOOL    smtp_etrn_serialize    = TRUE;
1357 int     smtp_max_synprot_errors= 3;
1358 int     smtp_max_unknown_commands = 3;
1359 uschar *smtp_notquit_reason    = NULL;
1360 uschar *smtp_ratelimit_hosts   = NULL;
1361 uschar *smtp_ratelimit_mail    = NULL;
1362 uschar *smtp_ratelimit_rcpt    = NULL;
1363 uschar *smtp_read_error        = US"";
1364 int     smtp_receive_timeout   = 5*60;
1365 uschar *smtp_receive_timeout_s = NULL;
1366 uschar *smtp_reserve_hosts     = NULL;
1367 BOOL    smtp_return_error_details = FALSE;
1368 int     smtp_rlm_base          = 0;
1369 double  smtp_rlm_factor        = 0.0;
1370 int     smtp_rlm_limit         = 0;
1371 int     smtp_rlm_threshold     = INT_MAX;
1372 int     smtp_rlr_base          = 0;
1373 double  smtp_rlr_factor        = 0.0;
1374 int     smtp_rlr_limit         = 0;
1375 int     smtp_rlr_threshold     = INT_MAX;
1376 unsigned smtp_peer_options     = 0;
1377 unsigned smtp_peer_options_wrap= 0;
1378 #ifdef SUPPORT_I18N
1379 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1380 #endif
1381
1382 #ifdef WITH_CONTENT_SCAN
1383 uschar *spamd_address          = US"127.0.0.1 783";
1384 uschar *spam_bar               = NULL;
1385 uschar *spam_report            = NULL;
1386 uschar *spam_action            = NULL;
1387 uschar *spam_score             = NULL;
1388 uschar *spam_score_int         = NULL;
1389 #endif
1390 #ifdef SUPPORT_SPF
1391 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1392 uschar *spf_header_comment     = NULL;
1393 uschar *spf_received           = NULL;
1394 uschar *spf_result             = NULL;
1395 BOOL    spf_result_guessed     = FALSE;
1396 uschar *spf_smtp_comment       = NULL;
1397 #endif
1398
1399 BOOL    split_spool_directory  = FALSE;
1400 FILE   *spool_data_file        = NULL;
1401 uschar *spool_directory        = US SPOOL_DIRECTORY
1402                            "\0<--------------Space to patch spool_directory->";
1403 BOOL    spool_file_wireformat  = FALSE;
1404 BOOL    spool_wireformat       = FALSE;
1405 #ifdef EXPERIMENTAL_SRS
1406 uschar *srs_config             = NULL;
1407 uschar *srs_db_address         = NULL;
1408 uschar *srs_db_key             = NULL;
1409 int     srs_hashlength         = 6;
1410 int     srs_hashmin            = -1;
1411 int     srs_maxage             = 31;
1412 uschar *srs_orig_recipient     = NULL;
1413 uschar *srs_orig_sender        = NULL;
1414 uschar *srs_recipient          = NULL;
1415 uschar *srs_secrets            = NULL;
1416 uschar *srs_status             = NULL;
1417 BOOL    srs_usehash            = TRUE;
1418 BOOL    srs_usetimestamp       = TRUE;
1419 #endif
1420 BOOL    strict_acl_vars        = FALSE;
1421 int     string_datestamp_offset= -1;
1422 int     string_datestamp_length= 0;
1423 int     string_datestamp_type  = -1;
1424 BOOL    strip_excess_angle_brackets = FALSE;
1425 BOOL    strip_trailing_dot     = FALSE;
1426 uschar *submission_domain      = NULL;
1427 BOOL    submission_mode        = FALSE;
1428 uschar *submission_name        = NULL;
1429 BOOL    suppress_local_fixups  = FALSE;
1430 BOOL    suppress_local_fixups_default = FALSE;
1431 BOOL    synchronous_delivery   = FALSE;
1432 BOOL    syslog_duplication     = TRUE;
1433 int     syslog_facility        = LOG_MAIL;
1434 BOOL    syslog_pid             = TRUE;
1435 uschar *syslog_processname     = US"exim";
1436 BOOL    syslog_timestamp       = TRUE;
1437 uschar *system_filter          = NULL;
1438
1439 uschar *system_filter_directory_transport = NULL;
1440 uschar *system_filter_file_transport = NULL;
1441 uschar *system_filter_pipe_transport = NULL;
1442 uschar *system_filter_reply_transport = NULL;
1443
1444 gid_t   system_filter_gid      = 0;
1445 BOOL    system_filter_gid_set  = FALSE;
1446 uid_t   system_filter_uid      = (uid_t)-1;
1447 BOOL    system_filter_uid_set  = FALSE;
1448 BOOL    system_filtering       = FALSE;
1449
1450 BOOL    tcp_fastopen_ok        = FALSE;
1451 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1452 BOOL    tcp_in_fastopen        = FALSE;
1453 BOOL    tcp_in_fastopen_logged = FALSE;
1454 BOOL    tcp_nodelay            = TRUE;
1455 int     tcp_out_fastopen       = 0;
1456 BOOL    tcp_out_fastopen_logged= FALSE;
1457 #ifdef USE_TCP_WRAPPERS
1458 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1459 #endif
1460 int     test_harness_load_avg  = 0;
1461 int     thismessage_size_limit = 0;
1462 int     timeout_frozen_after   = 0;
1463 BOOL    timestamps_utc         = FALSE;
1464
1465 transport_instance  *transports = NULL;
1466
1467 transport_instance  transport_defaults = {
1468     .next =                     NULL,
1469     .name =                     NULL,
1470     .info =                     NULL,
1471     .options_block =            NULL,
1472     .driver_name =              NULL,
1473     .setup =                    NULL,
1474     .batch_max =                1,
1475     .batch_id =                 NULL,
1476     .home_dir =                 NULL,
1477     .current_dir =              NULL,
1478     .expand_multi_domain =      NULL,
1479     .multi_domain =             TRUE,
1480     .overrides_hosts =          FALSE,
1481     .max_addresses =            100,
1482     .connection_max_messages =  500,
1483     .deliver_as_creator =       FALSE,
1484     .disable_logging =          FALSE,
1485     .initgroups =               FALSE,
1486     .uid_set =                  FALSE,
1487     .gid_set =                  FALSE,
1488     .uid =                      (uid_t)(-1),
1489     .gid =                      (gid_t)(-1),
1490     .expand_uid =               NULL,
1491     .expand_gid =               NULL,
1492     .warn_message =             NULL,
1493     .shadow =                   NULL,
1494     .shadow_condition =         NULL,
1495     .filter_command =           NULL,
1496     .add_headers =              NULL,
1497     .remove_headers =           NULL,
1498     .return_path =              NULL,
1499     .debug_string =             NULL,
1500     .max_parallel =             NULL,
1501     .message_size_limit =       NULL,
1502     .headers_rewrite =          NULL,
1503     .rewrite_rules =            NULL,
1504     .rewrite_existflags =       0,
1505     .filter_timeout =           300,
1506     .body_only =                FALSE,
1507     .delivery_date_add =        FALSE,
1508     .envelope_to_add =          FALSE,
1509     .headers_only =             FALSE,
1510     .rcpt_include_affixes =     FALSE,
1511     .return_path_add =          FALSE,
1512     .return_output =            FALSE,
1513     .return_fail_output =       FALSE,
1514     .log_output =               FALSE,
1515     .log_fail_output =          FALSE,
1516     .log_defer_output =         FALSE,
1517     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1518                                                  1 nor 0 so can detect unset */
1519 #ifndef DISABLE_EVENT
1520    .event_action =              NULL
1521 #endif
1522 };
1523
1524 int     transport_count;
1525 uschar *transport_name          = NULL;
1526 int     transport_newlines;
1527 const uschar **transport_filter_argv  = NULL;
1528 int     transport_filter_timeout;
1529 BOOL    transport_filter_timed_out = FALSE;
1530 int     transport_write_timeout= 0;
1531
1532 tree_node  *tree_dns_fails     = NULL;
1533 tree_node  *tree_duplicates    = NULL;
1534 tree_node  *tree_nonrecipients = NULL;
1535 tree_node  *tree_unusable      = NULL;
1536
1537 BOOL    trusted_caller         = FALSE;
1538 BOOL    trusted_config         = TRUE;
1539 gid_t  *trusted_groups         = NULL;
1540 uid_t  *trusted_users          = NULL;
1541 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1542
1543 uschar *unknown_login          = NULL;
1544 uschar *unknown_username       = NULL;
1545 uschar *untrusted_set_sender   = NULL;
1546
1547 /*  A regex for matching a "From_" line in an incoming message, in the form
1548
1549     From ph10 Fri Jan  5 12:35 GMT 1996
1550
1551 which  the "mail" commands send to the MTA (undocumented, of course), or in
1552 the  form
1553
1554     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1555
1556 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1557 Because  of variations in time formats, just match up to the minutes. That
1558 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1559 so  just require one digit for hours and minutes. The weekday is also absent
1560 in  some forms. */
1561
1562 uschar *uucp_from_pattern      = US
1563    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1564    "(?:"                                          /* Non-extracting bracket */
1565    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1566    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1567    ")"                                            /* End alternation */
1568    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1569
1570 uschar *uucp_from_sender       = US"$1";
1571
1572 uschar *verify_mode            = NULL;
1573 uschar *version_copyright      =
1574  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1575    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1576 uschar *version_date           = US"?";
1577 uschar *version_cnumber        = US"????";
1578 uschar *version_string         = US"?";
1579
1580 uschar *warn_message_file      = NULL;
1581 int     warning_count          = 0;
1582 uschar *warnmsg_delay          = NULL;
1583 uschar *warnmsg_recipients     = NULL;
1584 BOOL    write_rejectlog        = TRUE;
1585
1586
1587 /*  End of globals.c */