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 # ifdef EXPERIMENTAL_REQUIRETLS
 165 uschar  tls_requiretls         = 0;     /* REQUIRETLS_MSG etc. bit #defines */
 166 uschar *tls_advertise_requiretls = US"*";
 167 const pcre *regex_REQUIRETLS   = NULL;
 168 # endif
 169 uschar *tls_try_verify_hosts   = NULL;
 170 uschar *tls_verify_certificates= US"system";
 171 uschar *tls_verify_hosts       = NULL;
 172 #else   /*!SUPPORT_TLS*/
 173 uschar *tls_advertise_hosts    = NULL;
 174 #endif
 175
 176 #ifndef DISABLE_PRDR
 177 /* Per Recipient Data Response variables */
 178 BOOL    prdr_enable            = FALSE;
 179 BOOL    prdr_requested         = FALSE;
 180 const pcre *regex_PRDR         = NULL;
 181 #endif
 182
 183 #ifdef SUPPORT_I18N
 184 const pcre *regex_UTF8         = NULL;
 185 #endif
 186
 187 /* Input-reading functions for messages, so we can use special ones for
 188 incoming TCP/IP. The defaults use stdin. We never need these for any
 189 stand-alone tests. */
 190
 191 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 192 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 193 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 194 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 195 int (*receive_getc)(unsigned)  = stdin_getc;
 196 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 197 void (*receive_get_cache)(void)= NULL;
 198 int (*receive_ungetc)(int)     = stdin_ungetc;
 199 int (*receive_feof)(void)      = stdin_feof;
 200 int (*receive_ferror)(void)    = stdin_ferror;
 201 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 202 #endif
 203
 204
 205 /* List of per-address expansion variables for clearing and saving/restoring
 206 when verifying one address while routing/verifying another. We have to have
 207 the size explicit, because it is referenced from more than one module. */
 208
 209 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 210   CUSS &deliver_address_data,
 211   CUSS &deliver_domain,
 212   CUSS &deliver_domain_data,
 213   CUSS &deliver_domain_orig,
 214   CUSS &deliver_domain_parent,
 215   CUSS &deliver_localpart,
 216   CUSS &deliver_localpart_data,
 217   CUSS &deliver_localpart_orig,
 218   CUSS &deliver_localpart_parent,
 219   CUSS &deliver_localpart_prefix,
 220   CUSS &deliver_localpart_suffix,
 221   CUSS (uschar **)(&deliver_recipients),
 222   CUSS &deliver_host,
 223   CUSS &deliver_home,
 224   CUSS &address_file,
 225   CUSS &address_pipe,
 226   CUSS &self_hostname,
 227   NULL };
 228
 229 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 230
 231 /* General global variables */
 232
 233 header_line *acl_added_headers = NULL;
 234 tree_node *acl_anchor          = NULL;
 235 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 236                                   NULL, NULL, NULL, NULL};
 237 int     acl_narg               = 0;
 238
 239 int     acl_level              = 0;
 240
 241 uschar *acl_not_smtp           = NULL;
 242 #ifdef WITH_CONTENT_SCAN
 243 uschar *acl_not_smtp_mime      = NULL;
 244 #endif
 245 uschar *acl_not_smtp_start     = NULL;
 246 uschar *acl_removed_headers    = NULL;
 247 uschar *acl_smtp_auth          = NULL;
 248 uschar *acl_smtp_connect       = NULL;
 249 uschar *acl_smtp_data          = NULL;
 250 #ifndef DISABLE_PRDR
 251 uschar *acl_smtp_data_prdr     = US"accept";
 252 #endif
 253 #ifndef DISABLE_DKIM
 254 uschar *acl_smtp_dkim          = NULL;
 255 #endif
 256 uschar *acl_smtp_etrn          = NULL;
 257 uschar *acl_smtp_expn          = NULL;
 258 uschar *acl_smtp_helo          = NULL;
 259 uschar *acl_smtp_mail          = NULL;
 260 uschar *acl_smtp_mailauth      = NULL;
 261 #ifdef WITH_CONTENT_SCAN
 262 uschar *acl_smtp_mime          = NULL;
 263 #endif
 264 uschar *acl_smtp_notquit       = NULL;
 265 uschar *acl_smtp_predata       = NULL;
 266 uschar *acl_smtp_quit          = NULL;
 267 uschar *acl_smtp_rcpt          = NULL;
 268 uschar *acl_smtp_starttls      = NULL;
 269 uschar *acl_smtp_vrfy          = NULL;
 270
 271 BOOL    acl_temp_details       = FALSE;
 272 tree_node *acl_var_c           = NULL;
 273 tree_node *acl_var_m           = NULL;
 274 uschar *acl_verify_message     = NULL;
 275 string_item *acl_warn_logged   = NULL;
 276
 277 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 278 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 279
 280 uschar *acl_wherenames[]       = { US"RCPT",
 281                                    US"MAIL",
 282                                    US"PREDATA",
 283                                    US"MIME",
 284                                    US"DKIM",
 285                                    US"DATA",
 286 #ifndef DISABLE_PRDR
 287                                    US"PRDR",
 288 #endif
 289                                    US"non-SMTP",
 290                                    US"AUTH",
 291                                    US"connection",
 292                                    US"ETRN",
 293                                    US"EXPN",
 294                                    US"EHLO or HELO",
 295                                    US"MAILAUTH",
 296                                    US"non-SMTP-start",
 297                                    US"NOTQUIT",
 298                                    US"QUIT",
 299                                    US"STARTTLS",
 300                                    US"VRFY",
 301                                    US"delivery",
 302                                    US"unknown"
 303                                  };
 304
 305 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 306                                    US"550",     /* MAIL */
 307                                    US"550",     /* PREDATA */
 308                                    US"550",     /* MIME */
 309                                    US"550",     /* DKIM */
 310                                    US"550",     /* DATA */
 311 #ifndef DISABLE_PRDR
 312                                    US"550",    /* RCPT PRDR */
 313 #endif
 314                                    US"0",       /* not SMTP; not relevant */
 315                                    US"503",     /* AUTH */
 316                                    US"550",     /* connect */
 317                                    US"458",     /* ETRN */
 318                                    US"550",     /* EXPN */
 319                                    US"550",     /* HELO/EHLO */
 320                                    US"0",       /* MAILAUTH; not relevant */
 321                                    US"0",       /* not SMTP; not relevant */
 322                                    US"0",       /* NOTQUIT; not relevant */
 323                                    US"0",       /* QUIT; not relevant */
 324                                    US"550",     /* STARTTLS */
 325                                    US"252",     /* VRFY */
 326                                    US"0",       /* delivery; not relevant */
 327                                    US"0"        /* unknown; not relevant */
 328                                  };
 329
 330 BOOL    active_local_from_check = FALSE;
 331 BOOL    active_local_sender_retain = FALSE;
 332 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 333 uschar *add_environment        = NULL;
 334 address_item  *addr_duplicate  = NULL;
 335
 336 address_item address_defaults = {
 337   .next =               NULL,
 338   .parent =             NULL,
 339   .first =              NULL,
 340   .dupof =              NULL,
 341   .start_router =       NULL,
 342   .router =             NULL,
 343   .transport =          NULL,
 344   .host_list =          NULL,
 345   .host_used =          NULL,
 346   .fallback_hosts =     NULL,
 347   .reply =              NULL,
 348   .retries =            NULL,
 349   .address =            NULL,
 350   .unique =             NULL,
 351   .cc_local_part =      NULL,
 352   .lc_local_part =      NULL,
 353   .local_part =         NULL,
 354   .prefix =             NULL,
 355   .suffix =             NULL,
 356   .domain =             NULL,
 357   .address_retry_key =  NULL,
 358   .domain_retry_key =   NULL,
 359   .current_dir =        NULL,
 360   .home_dir =           NULL,
 361   .message =            NULL,
 362   .user_message =       NULL,
 363   .onetime_parent =     NULL,
 364   .pipe_expandn =       NULL,
 365   .return_filename =    NULL,
 366   .self_hostname =      NULL,
 367   .shadow_message =     NULL,
 368 #ifdef SUPPORT_TLS
 369   .cipher =             NULL,
 370   .ourcert =            NULL,
 371   .peercert =           NULL,
 372   .peerdn =             NULL,
 373   .ocsp =               OCSP_NOT_REQ,
 374 #endif
 375 #ifdef EXPERIMENTAL_DSN_INFO
 376   .smtp_greeting =      NULL,
 377   .helo_response =      NULL,
 378 #endif
 379   .authenticator =      NULL,
 380   .auth_id =            NULL,
 381   .auth_sndr =          NULL,
 382   .dsn_orcpt =          NULL,
 383   .dsn_flags =          0,
 384   .dsn_aware =          0,
 385   .uid =                (uid_t)(-1),
 386   .gid =                (gid_t)(-1),
 387   .flags =              { 0 },
 388   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 389   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 390   .mode =               -1,
 391   .more_errno =         0,
 392   .delivery_usec =      0,
 393   .basic_errno =        ERRNO_UNKNOWNERROR,
 394   .child_count =        0,
 395   .return_file =        -1,
 396   .special_action =     SPECIAL_NONE,
 397   .transport_return =   DEFER,
 398   .prop = {                                     /* fields that are propagated to children */
 399     .address_data =     NULL,
 400     .domain_data =      NULL,
 401     .localpart_data =   NULL,
 402     .errors_address =   NULL,
 403     .extra_headers =    NULL,
 404     .remove_headers =   NULL,
 405 #ifdef EXPERIMENTAL_SRS
 406     .srs_sender =       NULL,
 407 #endif
 408     .ignore_error =     FALSE,
 409 #ifdef SUPPORT_I18N
 410     .utf8_msg =         FALSE,
 411     .utf8_downcvt =     FALSE,
 412     .utf8_downcvt_maybe = FALSE
 413 #endif
 414   }
 415 };
 416
 417 uschar *address_file           = NULL;
 418 uschar *address_pipe           = NULL;
 419 BOOL    address_test_mode      = FALSE;
 420 tree_node *addresslist_anchor  = NULL;
 421 int     addresslist_count      = 0;
 422 gid_t  *admin_groups           = NULL;
 423 BOOL    admin_user             = FALSE;
 424 BOOL    allow_auth_unadvertised= FALSE;
 425 BOOL    allow_domain_literals  = FALSE;
 426 BOOL    allow_mx_to_ip         = FALSE;
 427 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 428 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 429 BOOL    allow_utf8_domains      = FALSE;
 430
 431 #ifdef EXPERIMENTAL_ARC
 432 struct arc_set *arc_received    = NULL;
 433 int     arc_received_instance   = 0;
 434 int     arc_oldest_pass         = 0;
 435 const uschar *arc_state         = NULL;
 436 const uschar *arc_state_reason  = NULL;
 437 #endif
 438
 439 uschar *authenticated_fail_id  = NULL;
 440 uschar *authenticated_id       = NULL;
 441 uschar *authenticated_sender   = NULL;
 442 BOOL    authentication_failed  = FALSE;
 443 BOOL    authentication_local   = FALSE;
 444 auth_instance  *auths          = NULL;
 445 uschar *auth_advertise_hosts   = US"*";
 446 auth_instance auth_defaults    = {
 447     .next =             NULL,
 448     .name =             NULL,
 449     .info =             NULL,
 450     .options_block =    NULL,
 451     .driver_name =      NULL,
 452     .advertise_condition = NULL,
 453     .client_condition = NULL,
 454     .public_name =      NULL,
 455     .set_id =           NULL,
 456     .set_client_id =    NULL,
 457     .mail_auth_condition = NULL,
 458     .server_debug_string = NULL,
 459     .server_condition = NULL,
 460     .client =           FALSE,
 461     .server =           FALSE,
 462     .advertised =       FALSE
 463 };
 464
 465 uschar *auth_defer_msg         = US"reason not recorded";
 466 uschar *auth_defer_user_msg    = US"";
 467 uschar *auth_vars[AUTH_VARS];
 468 int     auto_thaw              = 0;
 469 #ifdef WITH_CONTENT_SCAN
 470 BOOL    av_failed              = FALSE;
 471 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 472 #endif
 473
 474 BOOL    background_daemon      = TRUE;
 475
 476 #if BASE_62 == 62
 477 uschar *base62_chars=
 478     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 479 #else
 480 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 481 #endif
 482
 483 uschar *bi_command             = NULL;
 484 uschar *big_buffer             = NULL;
 485 int     big_buffer_size        = BIG_BUFFER_SIZE;
 486 #ifdef EXPERIMENTAL_BRIGHTMAIL
 487 uschar *bmi_alt_location       = NULL;
 488 uschar *bmi_base64_tracker_verdict = NULL;
 489 uschar *bmi_base64_verdict     = NULL;
 490 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 491 int     bmi_deliver            = 1;
 492 int     bmi_run                = 0;
 493 uschar *bmi_verdicts           = NULL;
 494 #endif
 495 int     bsmtp_transaction_linecount = 0;
 496 int     body_8bitmime          = 0;
 497 int     body_linecount         = 0;
 498 int     body_zerocount         = 0;
 499 uschar *bounce_message_file    = NULL;
 500 uschar *bounce_message_text    = NULL;
 501 uschar *bounce_recipient       = NULL;
 502 BOOL    bounce_return_body     = TRUE;
 503 int     bounce_return_linesize_limit = 998;
 504 BOOL    bounce_return_message  = TRUE;
 505 int     bounce_return_size_limit = 100*1024;
 506 uschar *bounce_sender_authentication = NULL;
 507
 508 uschar *callout_address        = NULL;
 509 int     callout_cache_domain_positive_expire = 7*24*60*60;
 510 int     callout_cache_domain_negative_expire = 3*60*60;
 511 int     callout_cache_positive_expire = 24*60*60;
 512 int     callout_cache_negative_expire = 2*60*60;
 513 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 514 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 515 int     check_log_inodes       = 100;
 516 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 517 BOOL    check_rfc2047_length   = TRUE;
 518 int     check_spool_inodes     = 100;
 519 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 520
 521 uschar *chunking_advertise_hosts = US"*";
 522 unsigned chunking_datasize     = 0;
 523 unsigned chunking_data_left    = 0;
 524 BOOL    chunking_offered       = FALSE;
 525 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 526 const pcre *regex_CHUNKING     = NULL;
 527
 528 uschar *client_authenticator   = NULL;
 529 uschar *client_authenticated_id = NULL;
 530 uschar *client_authenticated_sender = NULL;
 531 int     clmacro_count          = 0;
 532 uschar *clmacros[MAX_CLMACROS];
 533 BOOL    commandline_checks_require_admin = FALSE;
 534 BOOL    config_changed         = FALSE;
 535 FILE   *config_file            = NULL;
 536 const uschar *config_filename  = NULL;
 537 int     config_lineno          = 0;
 538 #ifdef CONFIGURE_GROUP
 539 gid_t   config_gid             = CONFIGURE_GROUP;
 540 #else
 541 gid_t   config_gid             = 0;
 542 #endif
 543 uschar *config_main_filelist   = US CONFIGURE_FILE
 544                          "\0<-----------Space to patch configure_filename->";
 545 uschar *config_main_filename   = NULL;
 546 uschar *config_main_directory  = NULL;
 547
 548 #ifdef CONFIGURE_OWNER
 549 uid_t   config_uid             = CONFIGURE_OWNER;
 550 #else
 551 uid_t   config_uid             = 0;
 552 #endif
 553
 554 int     connection_max_messages= -1;
 555 uschar *continue_proxy_cipher  = NULL;
 556 uschar *continue_hostname      = NULL;
 557 uschar *continue_host_address  = NULL;
 558 BOOL    continue_more          = FALSE;
 559 int     continue_sequence      = 1;
 560 uschar *continue_transport     = NULL;
 561
 562 uschar *csa_status             = NULL;
 563 cut_t   cutthrough = {
 564   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 565   .delivery =           FALSE,                          /* when to attempt */
 566   .defer_pass =         FALSE,                          /* on defer: spool locally */
 567   .is_tls =             FALSE,                          /* not a TLS conn yet */
 568   .cctx =               {.sock = -1},                   /* open connection */
 569   .nrcpt =              0,                              /* number of addresses */
 570 };
 571
 572 BOOL    daemon_listen          = FALSE;
 573 uschar *daemon_smtp_port       = US"smtp";
 574 int     daemon_startup_retries = 9;
 575 int     daemon_startup_sleep   = 30;
 576
 577 #ifdef EXPERIMENTAL_DCC
 578 BOOL    dcc_direct_add_header  = FALSE;
 579 uschar *dcc_header             = NULL;
 580 uschar *dcc_result             = NULL;
 581 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 582 uschar *dccifd_options         = US"header";
 583 #endif
 584
 585 BOOL    debug_daemon           = FALSE;
 586 int     debug_fd               = -1;
 587 FILE   *debug_file             = NULL;
 588 int     debug_notall[]         = {
 589   Di_memory,
 590   -1
 591 };
 592 bit_table debug_options[]      = { /* must be in alphabetical order */
 593   BIT_TABLE(D, acl),
 594   BIT_TABLE(D, all),
 595   BIT_TABLE(D, auth),
 596   BIT_TABLE(D, deliver),
 597   BIT_TABLE(D, dns),
 598   BIT_TABLE(D, dnsbl),
 599   BIT_TABLE(D, exec),
 600   BIT_TABLE(D, expand),
 601   BIT_TABLE(D, filter),
 602   BIT_TABLE(D, hints_lookup),
 603   BIT_TABLE(D, host_lookup),
 604   BIT_TABLE(D, ident),
 605   BIT_TABLE(D, interface),
 606   BIT_TABLE(D, lists),
 607   BIT_TABLE(D, load),
 608   BIT_TABLE(D, local_scan),
 609   BIT_TABLE(D, lookup),
 610   BIT_TABLE(D, memory),
 611   BIT_TABLE(D, pid),
 612   BIT_TABLE(D, process_info),
 613   BIT_TABLE(D, queue_run),
 614   BIT_TABLE(D, receive),
 615   BIT_TABLE(D, resolver),
 616   BIT_TABLE(D, retry),
 617   BIT_TABLE(D, rewrite),
 618   BIT_TABLE(D, route),
 619   BIT_TABLE(D, timestamp),
 620   BIT_TABLE(D, tls),
 621   BIT_TABLE(D, transport),
 622   BIT_TABLE(D, uid),
 623   BIT_TABLE(D, verify),
 624 };
 625 int     debug_options_count    = nelem(debug_options);
 626
 627 unsigned int debug_selector    = 0;
 628 BOOL    debug_store            = FALSE;
 629 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 630 uschar *delay_warning_condition=
 631   US"${if or {"
 632             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 633             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 634             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 635             "} {no}{yes}}";
 636 BOOL    delivery_date_remove   = TRUE;
 637 uschar *deliver_address_data   = NULL;
 638 int     deliver_datafile       = -1;
 639 const uschar *deliver_domain   = NULL;
 640 uschar *deliver_domain_data    = NULL;
 641 const uschar *deliver_domain_orig = NULL;
 642 const uschar *deliver_domain_parent = NULL;
 643 BOOL    deliver_drop_privilege = FALSE;
 644 BOOL    deliver_firsttime      = FALSE;
 645 BOOL    deliver_force          = FALSE;
 646 BOOL    deliver_freeze         = FALSE;
 647 time_t  deliver_frozen_at      = 0;
 648 uschar *deliver_home           = NULL;
 649 const uschar *deliver_host     = NULL;
 650 const uschar *deliver_host_address = NULL;
 651 int     deliver_host_port      = 0;
 652 uschar *deliver_in_buffer      = NULL;
 653 ino_t   deliver_inode          = 0;
 654 uschar *deliver_localpart      = NULL;
 655 uschar *deliver_localpart_data = NULL;
 656 uschar *deliver_localpart_orig = NULL;
 657 uschar *deliver_localpart_parent = NULL;
 658 uschar *deliver_localpart_prefix = NULL;
 659 uschar *deliver_localpart_suffix = NULL;
 660 BOOL    deliver_force_thaw     = FALSE;
 661 BOOL    deliver_manual_thaw    = FALSE;
 662 uschar *deliver_out_buffer     = NULL;
 663 int     deliver_queue_load_max = -1;
 664 address_item  *deliver_recipients = NULL;
 665 uschar *deliver_selectstring   = NULL;
 666 BOOL    deliver_selectstring_regex = FALSE;
 667 uschar *deliver_selectstring_sender = NULL;
 668 BOOL    deliver_selectstring_sender_regex = FALSE;
 669 BOOL    disable_callout_flush  = FALSE;
 670 BOOL    disable_delay_flush    = FALSE;
 671 #ifdef ENABLE_DISABLE_FSYNC
 672 BOOL    disable_fsync          = FALSE;
 673 #endif
 674 BOOL    disable_ipv6           = FALSE;
 675 BOOL    disable_logging        = FALSE;
 676
 677 #ifndef DISABLE_DKIM
 678 unsigned dkim_collect_input      = 0;
 679 uschar *dkim_cur_signer          = NULL;
 680 BOOL    dkim_disable_verify      = FALSE;
 681 int     dkim_key_length          = 0;
 682 void   *dkim_signatures          = NULL;
 683 uschar *dkim_signers             = NULL;
 684 uschar *dkim_signing_domain      = NULL;
 685 uschar *dkim_signing_selector    = NULL;
 686 uschar *dkim_verify_overall      = NULL;
 687 uschar *dkim_verify_signers      = US"$dkim_signers";
 688 uschar *dkim_verify_status       = NULL;
 689 uschar *dkim_verify_reason       = NULL;
 690 #endif
 691 #ifdef EXPERIMENTAL_DMARC
 692 BOOL    dmarc_has_been_checked  = FALSE;
 693 uschar *dmarc_domain_policy     = NULL;
 694 uschar *dmarc_forensic_sender   = NULL;
 695 uschar *dmarc_history_file      = NULL;
 696 uschar *dmarc_status            = NULL;
 697 uschar *dmarc_status_text       = NULL;
 698 uschar *dmarc_tld_file          = NULL;
 699 uschar *dmarc_used_domain       = NULL;
 700 BOOL    dmarc_disable_verify    = FALSE;
 701 BOOL    dmarc_enable_forensic   = FALSE;
 702 #endif
 703
 704 uschar *dns_again_means_nonexist = NULL;
 705 int     dns_csa_search_limit   = 5;
 706 BOOL    dns_csa_use_reverse    = TRUE;
 707 int     dns_cname_loops        = 1;
 708 #ifdef SUPPORT_DANE
 709 int     dns_dane_ok            = -1;
 710 #endif
 711 uschar *dns_ipv4_lookup        = NULL;
 712 int     dns_retrans            = 0;
 713 int     dns_retry              = 0;
 714 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 715 uschar *dns_trust_aa           = NULL;
 716 int     dns_use_edns0          = -1; /* <0 = not coerced */
 717 uschar *dnslist_domain         = NULL;
 718 uschar *dnslist_matched        = NULL;
 719 uschar *dnslist_text           = NULL;
 720 uschar *dnslist_value          = NULL;
 721 tree_node *domainlist_anchor   = NULL;
 722 int     domainlist_count       = 0;
 723 BOOL    dont_deliver           = FALSE;
 724 BOOL    dot_ends               = TRUE;
 725 BOOL    drop_cr                = FALSE;         /* No longer used */
 726 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 727
 728 BOOL    enable_dollar_recipients = FALSE;
 729 BOOL    envelope_to_remove     = TRUE;
 730 int     errno_quota            = ERRNO_QUOTA;
 731 uschar *errors_copy            = NULL;
 732 int     error_handling         = ERRORS_SENDER;
 733 uschar *errors_reply_to        = NULL;
 734 int     errors_sender_rc       = EXIT_FAILURE;
 735 #ifndef DISABLE_EVENT
 736 uschar *event_action             = NULL;        /* expansion for delivery events */
 737 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 738 int     event_defer_errno        = 0;
 739 const uschar *event_name         = NULL;        /* event name variable */
 740 #endif
 741
 742
 743 gid_t   exim_gid               = EXIM_GID;
 744 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 745 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 746                         "\0<---------------Space to patch exim_path->";
 747 uid_t   exim_uid               = EXIM_UID;
 748 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 749 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 750 int     expand_forbid          = 0;
 751 int     expand_nlength[EXPAND_MAXN+1];
 752 int     expand_nmax            = -1;
 753 uschar *expand_nstring[EXPAND_MAXN+1];
 754 BOOL    expand_string_forcedfail = FALSE;
 755 uschar *expand_string_message;
 756 BOOL    extract_addresses_remove_arguments = TRUE;
 757 uschar *extra_local_interfaces = NULL;
 758
 759 int     fake_response          = OK;
 760 uschar *fake_response_text     = US"Your message has been rejected but is "
 761                                    "being kept for evaluation.\nIf it was a "
 762                                    "legitimate message, it may still be "
 763                                    "delivered to the target recipient(s).";
 764 int     filter_n[FILTER_VARIABLE_COUNT];
 765 BOOL    filter_running         = FALSE;
 766 int     filter_sn[FILTER_VARIABLE_COUNT];
 767 int     filter_test            = FTEST_NONE;
 768 uschar *filter_test_sfile      = NULL;
 769 uschar *filter_test_ufile      = NULL;
 770 uschar *filter_thisaddress     = NULL;
 771 int     finduser_retries       = 0;
 772 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 773 uschar *freeze_tell            = NULL;
 774 uschar *freeze_tell_config     = NULL;
 775 uschar *fudged_queue_times     = US"";
 776
 777 uschar *gecos_name             = NULL;
 778 uschar *gecos_pattern          = NULL;
 779 rewrite_rule  *global_rewrite_rules = NULL;
 780
 781 volatile sig_atomic_t had_command_timeout = 0;
 782 volatile sig_atomic_t had_command_sigterm = 0;
 783 volatile sig_atomic_t had_data_timeout    = 0;
 784 volatile sig_atomic_t had_data_sigint     = 0;
 785 uschar *headers_charset        = US HEADERS_CHARSET;
 786 int     header_insert_maxlen   = 64 * 1024;
 787 header_line  *header_last      = NULL;
 788 header_line  *header_list      = NULL;
 789 int     header_maxsize         = HEADER_MAXSIZE;
 790 int     header_line_maxsize    = 0;
 791
 792 header_name header_names[] = {
 793   /* name               len     allow_resent    htype */
 794   { US"bcc",            3,      TRUE,           htype_bcc },
 795   { US"cc",             2,      TRUE,           htype_cc },
 796   { US"date",           4,      TRUE,           htype_date },
 797   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 798   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 799   { US"from",           4,      TRUE,           htype_from },
 800   { US"message-id",    10,      TRUE,           htype_id },
 801   { US"received",       8,      FALSE,          htype_received },
 802   { US"reply-to",       8,      FALSE,          htype_reply_to },
 803   { US"return-path",   11,      FALSE,          htype_return_path },
 804   { US"sender",         6,      TRUE,           htype_sender },
 805   { US"subject",        7,      FALSE,          htype_subject },
 806   { US"to",             2,      TRUE,           htype_to }
 807 };
 808
 809 int header_names_size          = nelem(header_names);
 810
 811 BOOL    header_rewritten       = FALSE;
 812 uschar *helo_accept_junk_hosts = NULL;
 813 uschar *helo_allow_chars       = US"";
 814 uschar *helo_lookup_domains    = US"@ : @[]";
 815 uschar *helo_try_verify_hosts  = NULL;
 816 BOOL    helo_verified          = FALSE;
 817 BOOL    helo_verify_failed     = FALSE;
 818 uschar *helo_verify_hosts      = NULL;
 819 const uschar *hex_digits       = CUS"0123456789abcdef";
 820 uschar *hold_domains           = NULL;
 821 BOOL    host_checking          = FALSE;
 822 BOOL    host_checking_callout  = FALSE;
 823 uschar *host_data              = NULL;
 824 BOOL    host_find_failed_syntax= FALSE;
 825 uschar *host_lookup            = NULL;
 826 BOOL    host_lookup_deferred   = FALSE;
 827 BOOL    host_lookup_failed     = FALSE;
 828 uschar *host_lookup_order      = US"bydns:byaddr";
 829 uschar *host_lookup_msg        = US"";
 830 int     host_number            = 0;
 831 uschar *host_number_string     = NULL;
 832 uschar *host_reject_connection = NULL;
 833 tree_node *hostlist_anchor     = NULL;
 834 int     hostlist_count         = 0;
 835 uschar *hosts_treat_as_local   = NULL;
 836 uschar *hosts_connection_nolog = NULL;
 837
 838 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 839 BOOL    ignore_fromline_local  = FALSE;
 840 uschar *ignore_fromline_hosts  = NULL;
 841 BOOL    inetd_wait_mode        = FALSE;
 842 int     inetd_wait_timeout     = -1;
 843 uschar *initial_cwd            = NULL;
 844 uschar *interface_address      = NULL;
 845 int     interface_port         = -1;
 846 BOOL    is_inetd               = FALSE;
 847 uschar *iterate_item           = NULL;
 848
 849 int     journal_fd             = -1;
 850
 851 uschar *keep_environment       = NULL;
 852
 853 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 854
 855 uschar *eldap_dn               = NULL;
 856 int     load_average           = -2;
 857 BOOL    local_error_message    = FALSE;
 858 BOOL    local_from_check       = TRUE;
 859 uschar *local_from_prefix      = NULL;
 860 uschar *local_from_suffix      = NULL;
 861
 862 #if HAVE_IPV6
 863 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 864 #else
 865 uschar *local_interfaces       = US"0.0.0.0";
 866 #endif
 867
 868 #ifdef HAVE_LOCAL_SCAN
 869 uschar *local_scan_data        = NULL;
 870 int     local_scan_timeout     = 5*60;
 871 #endif
 872 BOOL    local_sender_retain    = FALSE;
 873 gid_t   local_user_gid         = (gid_t)(-1);
 874 uid_t   local_user_uid         = (uid_t)(-1);
 875
 876 tree_node *localpartlist_anchor= NULL;
 877 int     localpartlist_count    = 0;
 878 uschar *log_buffer             = NULL;
 879
 880 int     log_default[]          = { /* for initializing log_selector */
 881   Li_acl_warn_skipped,
 882   Li_connection_reject,
 883   Li_delay_delivery,
 884   Li_dkim,
 885   Li_dnslist_defer,
 886   Li_etrn,
 887   Li_host_lookup_failed,
 888   Li_lost_incoming_connection,
 889   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 890   Li_queue_run,
 891   Li_rejected_header,
 892   Li_retry_defer,
 893   Li_sender_verify_fail,
 894   Li_size_reject,
 895   Li_skip_delivery,
 896   Li_smtp_confirmation,
 897   Li_tls_certificate_verified,
 898   Li_tls_cipher,
 899   -1
 900 };
 901
 902 uschar *log_file_path          = US LOG_FILE_PATH
 903                            "\0<--------------Space to patch log_file_path->";
 904
 905 int     log_notall[]           = {
 906   -1
 907 };
 908 bit_table log_options[]        = { /* must be in alphabetical order */
 909   BIT_TABLE(L, 8bitmime),
 910   BIT_TABLE(L, acl_warn_skipped),
 911   BIT_TABLE(L, address_rewrite),
 912   BIT_TABLE(L, all),
 913   BIT_TABLE(L, all_parents),
 914   BIT_TABLE(L, arguments),
 915   BIT_TABLE(L, connection_reject),
 916   BIT_TABLE(L, delay_delivery),
 917   BIT_TABLE(L, deliver_time),
 918   BIT_TABLE(L, delivery_size),
 919 #ifndef DISABLE_DKIM
 920   BIT_TABLE(L, dkim),
 921   BIT_TABLE(L, dkim_verbose),
 922 #endif
 923   BIT_TABLE(L, dnslist_defer),
 924   BIT_TABLE(L, dnssec),
 925   BIT_TABLE(L, etrn),
 926   BIT_TABLE(L, host_lookup_failed),
 927   BIT_TABLE(L, ident_timeout),
 928   BIT_TABLE(L, incoming_interface),
 929   BIT_TABLE(L, incoming_port),
 930   BIT_TABLE(L, lost_incoming_connection),
 931   BIT_TABLE(L, millisec),
 932   BIT_TABLE(L, outgoing_interface),
 933   BIT_TABLE(L, outgoing_port),
 934   BIT_TABLE(L, pid),
 935   BIT_TABLE(L, pipelining),
 936 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 937   BIT_TABLE(L, proxy),
 938 #endif
 939   BIT_TABLE(L, queue_run),
 940   BIT_TABLE(L, queue_time),
 941   BIT_TABLE(L, queue_time_overall),
 942   BIT_TABLE(L, receive_time),
 943   BIT_TABLE(L, received_recipients),
 944   BIT_TABLE(L, received_sender),
 945   BIT_TABLE(L, rejected_header),
 946   { US"rejected_headers", Li_rejected_header },
 947   BIT_TABLE(L, retry_defer),
 948   BIT_TABLE(L, return_path_on_delivery),
 949   BIT_TABLE(L, sender_on_delivery),
 950   BIT_TABLE(L, sender_verify_fail),
 951   BIT_TABLE(L, size_reject),
 952   BIT_TABLE(L, skip_delivery),
 953   BIT_TABLE(L, smtp_confirmation),
 954   BIT_TABLE(L, smtp_connection),
 955   BIT_TABLE(L, smtp_incomplete_transaction),
 956   BIT_TABLE(L, smtp_mailauth),
 957   BIT_TABLE(L, smtp_no_mail),
 958   BIT_TABLE(L, smtp_protocol_error),
 959   BIT_TABLE(L, smtp_syntax_error),
 960   BIT_TABLE(L, subject),
 961   BIT_TABLE(L, tls_certificate_verified),
 962   BIT_TABLE(L, tls_cipher),
 963   BIT_TABLE(L, tls_peerdn),
 964   BIT_TABLE(L, tls_sni),
 965   BIT_TABLE(L, unknown_in_list),
 966 };
 967 int     log_options_count      = nelem(log_options);
 968
 969 int     log_reject_target      = 0;
 970 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 971 uschar *log_selector_string    = NULL;
 972 FILE   *log_stderr             = NULL;
 973 BOOL    log_testing_mode       = FALSE;
 974 BOOL    log_timezone           = FALSE;
 975 uschar *login_sender_address   = NULL;
 976 uschar *lookup_dnssec_authenticated = NULL;
 977 int     lookup_open_max        = 25;
 978 uschar *lookup_value           = NULL;
 979
 980 macro_item *macros_user        = NULL;
 981 uschar *mailstore_basename     = NULL;
 982 #ifdef WITH_CONTENT_SCAN
 983 uschar *malware_name           = NULL;  /* Virus Name */
 984 #endif
 985 int     max_received_linelength= 0;
 986 int     max_username_length    = 0;
 987 int     message_age            = 0;
 988 uschar *message_body           = NULL;
 989 uschar *message_body_end       = NULL;
 990 BOOL    message_body_newlines  = FALSE;
 991 int     message_body_size      = 0;
 992 int     message_body_visible   = 500;
 993 int     message_ended          = END_NOTSTARTED;
 994 uschar *message_headers        = NULL;
 995 uschar *message_id;
 996 uschar *message_id_domain      = NULL;
 997 uschar *message_id_text        = NULL;
 998 struct timeval message_id_tv   = { 0, 0 };
 999 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1000 uschar *message_id_external;
1001 int     message_linecount      = 0;
1002 BOOL    message_logs           = TRUE;
1003 int     message_size           = 0;
1004 uschar *message_size_limit     = US"50M";
1005 #ifdef SUPPORT_I18N
1006 BOOL    message_smtputf8       = FALSE;
1007 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1008 #endif
1009 uschar  message_subdir[2]      = { 0, 0 };
1010 uschar *message_reference      = NULL;
1011
1012 /* MIME ACL expandables */
1013 #ifdef WITH_CONTENT_SCAN
1014 int     mime_anomaly_level     = 0;
1015 const uschar *mime_anomaly_text      = NULL;
1016 uschar *mime_boundary          = NULL;
1017 uschar *mime_charset           = NULL;
1018 uschar *mime_content_description = NULL;
1019 uschar *mime_content_disposition = NULL;
1020 uschar *mime_content_id        = NULL;
1021 unsigned int mime_content_size = 0;
1022 uschar *mime_content_transfer_encoding = NULL;
1023 uschar *mime_content_type      = NULL;
1024 uschar *mime_decoded_filename  = NULL;
1025 uschar *mime_filename          = NULL;
1026 int     mime_is_multipart      = 0;
1027 int     mime_is_coverletter    = 0;
1028 int     mime_is_rfc822         = 0;
1029 int     mime_part_count        = -1;
1030 #endif
1031
1032 BOOL    mua_wrapper            = FALSE;
1033
1034 uid_t  *never_users            = NULL;
1035 #ifdef WITH_CONTENT_SCAN
1036 BOOL    no_mbox_unspool        = FALSE;
1037 #endif
1038 BOOL    no_multiline_responses = FALSE;
1039
1040 const int on                   = 1;     /* for setsockopt */
1041 const int off                  = 0;
1042
1043 uid_t   original_euid;
1044 gid_t   originator_gid;
1045 uschar *originator_login       = NULL;
1046 uschar *originator_name        = NULL;
1047 uid_t   originator_uid;
1048 uschar *override_local_interfaces = NULL;
1049 uschar *override_pid_file_path = NULL;
1050
1051 BOOL    parse_allow_group      = FALSE;
1052 BOOL    parse_found_group      = FALSE;
1053 uschar *percent_hack_domains   = NULL;
1054 uschar *pid_file_path          = US PID_FILE_PATH
1055                            "\0<--------------Space to patch pid_file_path->";
1056 BOOL    pipelining_enable      = TRUE;
1057 uschar *pipelining_advertise_hosts = US"*";
1058 BOOL    preserve_message_logs  = FALSE;
1059 uschar *primary_hostname       = NULL;
1060 BOOL    print_topbitchars      = FALSE;
1061 uschar  process_info[PROCESS_INFO_SIZE];
1062 int     process_info_len       = 0;
1063 uschar *process_log_path       = NULL;
1064 BOOL    prod_requires_admin    = TRUE;
1065
1066 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1067 uschar *hosts_proxy            = US"";
1068 uschar *proxy_external_address = US"";
1069 int     proxy_external_port    = 0;
1070 uschar *proxy_local_address    = US"";
1071 int     proxy_local_port       = 0;
1072 BOOL    proxy_session          = FALSE;
1073 BOOL    proxy_session_failed   = FALSE;
1074 #endif
1075
1076 uschar *prvscheck_address      = NULL;
1077 uschar *prvscheck_keynum       = NULL;
1078 uschar *prvscheck_result       = NULL;
1079
1080
1081 const uschar *qualify_domain_recipient = NULL;
1082 uschar *qualify_domain_sender  = NULL;
1083 BOOL    queue_2stage           = FALSE;
1084 uschar *queue_domains          = NULL;
1085 int     queue_interval         = -1;
1086 BOOL    queue_list_requires_admin = TRUE;
1087 uschar *queue_name             = US"";
1088 BOOL    queue_only             = FALSE;
1089 uschar *queue_only_file        = NULL;
1090 int     queue_only_load        = -1;
1091 BOOL    queue_only_load_latch  = TRUE;
1092 BOOL    queue_only_override    = TRUE;
1093 BOOL    queue_only_policy      = FALSE;
1094 BOOL    queue_run_first_delivery = FALSE;
1095 BOOL    queue_run_force        = FALSE;
1096 BOOL    queue_run_in_order     = FALSE;
1097 BOOL    queue_run_local        = FALSE;
1098 uschar *queue_run_max          = US"5";
1099 pid_t   queue_run_pid          = (pid_t)0;
1100 int     queue_run_pipe         = -1;
1101 BOOL    queue_running          = FALSE;
1102 BOOL    queue_smtp             = FALSE;
1103 uschar *queue_smtp_domains     = NULL;
1104
1105 unsigned int random_seed       = 0;
1106 tree_node *ratelimiters_cmd    = NULL;
1107 tree_node *ratelimiters_conn   = NULL;
1108 tree_node *ratelimiters_mail   = NULL;
1109 uschar *raw_active_hostname    = NULL;
1110 uschar *raw_sender             = NULL;
1111 uschar **raw_recipients        = NULL;
1112 int     raw_recipients_count   = 0;
1113
1114 int     rcpt_count             = 0;
1115 int     rcpt_fail_count        = 0;
1116 int     rcpt_defer_count       = 0;
1117 gid_t   real_gid;
1118 uid_t   real_uid;
1119 BOOL    really_exim            = TRUE;
1120 BOOL    receive_call_bombout   = FALSE;
1121 int     receive_linecount      = 0;
1122 int     receive_messagecount   = 0;
1123 int     receive_timeout        = 0;
1124 int     received_count         = 0;
1125 uschar *received_for           = NULL;
1126
1127 /*  This is the default text for Received headers generated by Exim. The
1128 date  will be automatically added on the end. */
1129
1130 uschar *received_header_text   = US
1131      "Received: "
1132      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1133      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1134      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1135      "by $primary_hostname "
1136      "${if def:received_protocol {with $received_protocol}} "
1137      #ifdef SUPPORT_TLS
1138      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1139      #endif
1140      "(Exim $version_number)\n\t"
1141      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1142      "id $message_exim_id"
1143      "${if def:received_for {\n\tfor $received_for}}"
1144      "\0<---------------Space to patch received_header_text->";
1145
1146 int     received_headers_max   = 30;
1147 uschar *received_protocol      = NULL;
1148 struct timeval received_time   = { 0, 0 };
1149 struct timeval received_time_taken = { 0, 0 };
1150 uschar *recipient_data         = NULL;
1151 uschar *recipient_unqualified_hosts = NULL;
1152 uschar *recipient_verify_failure = NULL;
1153 int     recipients_count       = 0;
1154 BOOL    recipients_discarded   = FALSE;
1155 recipient_item  *recipients_list = NULL;
1156 int     recipients_list_max    = 0;
1157 int     recipients_max         = 0;
1158 BOOL    recipients_max_reject  = FALSE;
1159 const pcre *regex_AUTH         = NULL;
1160 const pcre *regex_check_dns_names = NULL;
1161 const pcre *regex_From         = NULL;
1162 const pcre *regex_IGNOREQUOTA  = NULL;
1163 const pcre *regex_PIPELINING   = NULL;
1164 const pcre *regex_SIZE         = NULL;
1165 const pcre *regex_ismsgid      = NULL;
1166 const pcre *regex_smtp_code    = NULL;
1167 uschar *regex_vars[REGEX_VARS];
1168 #ifdef WHITELIST_D_MACROS
1169 const pcre *regex_whitelisted_macro = NULL;
1170 #endif
1171 #ifdef WITH_CONTENT_SCAN
1172 uschar *regex_match_string     = NULL;
1173 #endif
1174 int     remote_delivery_count  = 0;
1175 int     remote_max_parallel    = 2;
1176 uschar *remote_sort_domains    = NULL;
1177 int     retry_data_expire      = 7*24*60*60;
1178 int     retry_interval_max     = 24*60*60;
1179 int     retry_maximum_timeout  = 0;        /* set from retry config */
1180 retry_config  *retries         = NULL;
1181 uschar *return_path            = NULL;
1182 BOOL    return_path_remove     = TRUE;
1183 int     rewrite_existflags     = 0;
1184 uschar *rfc1413_hosts          = US"@[]";
1185 int     rfc1413_query_timeout  = 0;
1186 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1187 uid_t   root_gid               = ROOT_GID;
1188 uid_t   root_uid               = ROOT_UID;
1189
1190 router_instance  *routers  = NULL;
1191 router_instance  router_defaults = {
1192     .next =                     NULL,
1193     .name =                     NULL,
1194     .info =                     NULL,
1195     .options_block =            NULL,
1196     .driver_name =              NULL,
1197
1198     .address_data =             NULL,
1199 #ifdef EXPERIMENTAL_BRIGHTMAIL
1200     .bmi_rule =                 NULL,
1201 #endif
1202     .cannot_route_message =     NULL,
1203     .condition =                NULL,
1204     .current_directory =        NULL,
1205     .debug_string =             NULL,
1206     .domains =                  NULL,
1207     .errors_to =                NULL,
1208     .expand_gid =               NULL,
1209     .expand_uid =               NULL,
1210     .expand_more =              NULL,
1211     .expand_unseen =            NULL,
1212     .extra_headers =            NULL,
1213     .fallback_hosts =           NULL,
1214     .home_directory =           NULL,
1215     .ignore_target_hosts =      NULL,
1216     .local_parts =              NULL,
1217     .pass_router_name =         NULL,
1218     .prefix =                   NULL,
1219     .redirect_router_name =     NULL,
1220     .remove_headers =           NULL,
1221     .require_files =            NULL,
1222     .router_home_directory =    NULL,
1223     .self =                     US"freeze",
1224     .senders =                  NULL,
1225     .suffix =                   NULL,
1226     .translate_ip_address =     NULL,
1227     .transport_name =           NULL,
1228
1229     .address_test =             TRUE,
1230 #ifdef EXPERIMENTAL_BRIGHTMAIL
1231     .bmi_deliver_alternate =    FALSE,
1232     .bmi_deliver_default =      FALSE,
1233     .bmi_dont_deliver =         FALSE,
1234 #endif
1235     .expn =                     TRUE,
1236     .caseful_local_part =       FALSE,
1237     .check_local_user =         FALSE,
1238     .disable_logging =          FALSE,
1239     .fail_verify_recipient =    FALSE,
1240     .fail_verify_sender =       FALSE,
1241     .gid_set =                  FALSE,
1242     .initgroups =               FALSE,
1243     .log_as_local =             TRUE_UNSET,
1244     .more =                     TRUE,
1245     .pass_on_timeout =          FALSE,
1246     .prefix_optional =          FALSE,
1247     .repeat_use =               TRUE,
1248     .retry_use_local_part =     TRUE_UNSET,
1249     .same_domain_copy_routing = FALSE,
1250     .self_rewrite =             FALSE,
1251     .suffix_optional =          FALSE,
1252     .verify_only =              FALSE,
1253     .verify_recipient =         TRUE,
1254     .verify_sender =            TRUE,
1255     .uid_set =                  FALSE,
1256     .unseen =                   FALSE,
1257     .dsn_lasthop =              FALSE,
1258
1259     .self_code =                self_freeze,
1260     .uid =                      (uid_t)(-1),
1261     .gid =                      (gid_t)(-1),
1262
1263     .fallback_hostlist =        NULL,
1264     .transport =                NULL,
1265     .pass_router =              NULL,
1266     .redirect_router =          NULL,
1267
1268     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1269 };
1270
1271 uschar *router_name            = NULL;
1272
1273 ip_address_item *running_interfaces = NULL;
1274 BOOL    running_in_test_harness = FALSE;
1275
1276 /* This is a weird one. The following string gets patched in the binary by the
1277 script that sets up a copy of Exim for running in the test harness. It seems
1278 that compilers are now clever, and share constant strings if they can.
1279 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1280 make use of the end of this string in order to save space. So the patching then
1281 wrecks this. We defeat this optimization by adding some additional characters
1282 onto the end of the string. */
1283
1284 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1285
1286 int     runrc                  = 0;
1287
1288 uschar *search_error_message   = NULL;
1289 BOOL    search_find_defer      = FALSE;
1290 uschar *self_hostname          = NULL;
1291 uschar *sender_address         = NULL;
1292 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1293 uschar *sender_address_data    = NULL;
1294 BOOL    sender_address_forced  = FALSE;
1295 uschar *sender_address_unrewritten = NULL;
1296 uschar *sender_data            = NULL;
1297 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1298 uschar *sender_fullhost        = NULL;
1299 BOOL    sender_helo_dnssec     = FALSE;
1300 uschar *sender_helo_name       = NULL;
1301 uschar **sender_host_aliases   = &no_aliases;
1302 uschar *sender_host_address    = NULL;
1303 uschar *sender_host_authenticated = NULL;
1304 uschar *sender_host_auth_pubname  = NULL;
1305 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1306 BOOL    sender_host_dnssec     = FALSE;
1307 uschar *sender_host_name       = NULL;
1308 int     sender_host_port       = 0;
1309 BOOL    sender_host_notsocket  = FALSE;
1310 BOOL    sender_host_unknown    = FALSE;
1311 uschar *sender_ident           = NULL;
1312 BOOL    sender_local           = FALSE;
1313 BOOL    sender_name_forced     = FALSE;
1314 uschar *sender_rate            = NULL;
1315 uschar *sender_rate_limit      = NULL;
1316 uschar *sender_rate_period     = NULL;
1317 uschar *sender_rcvhost         = NULL;
1318 BOOL    sender_set_untrusted   = FALSE;
1319 uschar *sender_unqualified_hosts = NULL;
1320 uschar *sender_verify_failure = NULL;
1321 address_item *sender_verified_list  = NULL;
1322 address_item *sender_verified_failed = NULL;
1323 int     sender_verified_rc     = -1;
1324 BOOL    sender_verified_responded = FALSE;
1325 uschar *sending_ip_address     = NULL;
1326 int     sending_port           = -1;
1327 SIGNAL_BOOL sigalrm_seen       = FALSE;
1328 uschar **sighup_argv           = NULL;
1329 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1330 int     smtp_accept_count      = 0;
1331 BOOL    smtp_accept_keepalive  = TRUE;
1332 int     smtp_accept_max        = 20;
1333 int     smtp_accept_max_nonmail= 10;
1334 uschar *smtp_accept_max_nonmail_hosts = US"*";
1335 int     smtp_accept_max_per_connection = 1000;
1336 uschar *smtp_accept_max_per_host = NULL;
1337 int     smtp_accept_queue      = 0;
1338 int     smtp_accept_queue_per_connection = 10;
1339 int     smtp_accept_reserve    = 0;
1340 uschar *smtp_active_hostname   = NULL;
1341 BOOL    smtp_authenticated     = FALSE;
1342 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1343                              "Exim $version_number $tod_full"
1344                              "\0<---------------Space to patch smtp_banner->";
1345 BOOL    smtp_batched_input     = FALSE;
1346 BOOL    smtp_check_spool_space = TRUE;
1347 int     smtp_ch_index          = 0;
1348 uschar *smtp_cmd_argument      = NULL;
1349 uschar *smtp_cmd_buffer        = NULL;
1350 struct timeval smtp_connection_start  = {0,0};
1351 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1352 int     smtp_connect_backlog   = 20;
1353 double  smtp_delay_mail        = 0.0;
1354 double  smtp_delay_rcpt        = 0.0;
1355 BOOL    smtp_enforce_sync      = TRUE;
1356 FILE   *smtp_in                = NULL;
1357 BOOL    smtp_in_pipelining_advertised = FALSE;
1358 BOOL    smtp_in_pipelining_used = FALSE;
1359 BOOL    smtp_input             = FALSE;
1360 int     smtp_load_reserve      = -1;
1361 int     smtp_mailcmd_count     = 0;
1362 FILE   *smtp_out               = NULL;
1363 uschar *smtp_etrn_command      = NULL;
1364 BOOL    smtp_etrn_serialize    = TRUE;
1365 int     smtp_max_synprot_errors= 3;
1366 int     smtp_max_unknown_commands = 3;
1367 uschar *smtp_notquit_reason    = NULL;
1368 uschar *smtp_ratelimit_hosts   = NULL;
1369 uschar *smtp_ratelimit_mail    = NULL;
1370 uschar *smtp_ratelimit_rcpt    = NULL;
1371 uschar *smtp_read_error        = US"";
1372 int     smtp_receive_timeout   = 5*60;
1373 uschar *smtp_receive_timeout_s = NULL;
1374 uschar *smtp_reserve_hosts     = NULL;
1375 BOOL    smtp_return_error_details = FALSE;
1376 int     smtp_rlm_base          = 0;
1377 double  smtp_rlm_factor        = 0.0;
1378 int     smtp_rlm_limit         = 0;
1379 int     smtp_rlm_threshold     = INT_MAX;
1380 int     smtp_rlr_base          = 0;
1381 double  smtp_rlr_factor        = 0.0;
1382 int     smtp_rlr_limit         = 0;
1383 int     smtp_rlr_threshold     = INT_MAX;
1384 unsigned smtp_peer_options     = 0;
1385 unsigned smtp_peer_options_wrap= 0;
1386 #ifdef SUPPORT_I18N
1387 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1388 #endif
1389
1390 #ifdef WITH_CONTENT_SCAN
1391 uschar *spamd_address          = US"127.0.0.1 783";
1392 uschar *spam_bar               = NULL;
1393 uschar *spam_report            = NULL;
1394 uschar *spam_action            = NULL;
1395 uschar *spam_score             = NULL;
1396 uschar *spam_score_int         = NULL;
1397 #endif
1398 #ifdef SUPPORT_SPF
1399 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1400 uschar *spf_header_comment     = NULL;
1401 uschar *spf_received           = NULL;
1402 uschar *spf_result             = NULL;
1403 BOOL    spf_result_guessed     = FALSE;
1404 uschar *spf_smtp_comment       = NULL;
1405 #endif
1406
1407 BOOL    split_spool_directory  = FALSE;
1408 FILE   *spool_data_file        = NULL;
1409 uschar *spool_directory        = US SPOOL_DIRECTORY
1410                            "\0<--------------Space to patch spool_directory->";
1411 BOOL    spool_file_wireformat  = FALSE;
1412 BOOL    spool_wireformat       = FALSE;
1413 #ifdef EXPERIMENTAL_SRS
1414 uschar *srs_config             = NULL;
1415 uschar *srs_db_address         = NULL;
1416 uschar *srs_db_key             = NULL;
1417 int     srs_hashlength         = 6;
1418 int     srs_hashmin            = -1;
1419 int     srs_maxage             = 31;
1420 uschar *srs_orig_recipient     = NULL;
1421 uschar *srs_orig_sender        = NULL;
1422 uschar *srs_recipient          = NULL;
1423 uschar *srs_secrets            = NULL;
1424 uschar *srs_status             = NULL;
1425 BOOL    srs_usehash            = TRUE;
1426 BOOL    srs_usetimestamp       = TRUE;
1427 #endif
1428 BOOL    strict_acl_vars        = FALSE;
1429 int     string_datestamp_offset= -1;
1430 int     string_datestamp_length= 0;
1431 int     string_datestamp_type  = -1;
1432 BOOL    strip_excess_angle_brackets = FALSE;
1433 BOOL    strip_trailing_dot     = FALSE;
1434 uschar *submission_domain      = NULL;
1435 BOOL    submission_mode        = FALSE;
1436 uschar *submission_name        = NULL;
1437 BOOL    suppress_local_fixups  = FALSE;
1438 BOOL    suppress_local_fixups_default = FALSE;
1439 BOOL    synchronous_delivery   = FALSE;
1440 BOOL    syslog_duplication     = TRUE;
1441 int     syslog_facility        = LOG_MAIL;
1442 BOOL    syslog_pid             = TRUE;
1443 uschar *syslog_processname     = US"exim";
1444 BOOL    syslog_timestamp       = TRUE;
1445 uschar *system_filter          = NULL;
1446
1447 uschar *system_filter_directory_transport = NULL;
1448 uschar *system_filter_file_transport = NULL;
1449 uschar *system_filter_pipe_transport = NULL;
1450 uschar *system_filter_reply_transport = NULL;
1451
1452 gid_t   system_filter_gid      = 0;
1453 BOOL    system_filter_gid_set  = FALSE;
1454 uid_t   system_filter_uid      = (uid_t)-1;
1455 BOOL    system_filter_uid_set  = FALSE;
1456 BOOL    system_filtering       = FALSE;
1457
1458 BOOL    tcp_fastopen_ok        = FALSE;
1459 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1460 BOOL    tcp_in_fastopen        = FALSE;
1461 BOOL    tcp_in_fastopen_logged = FALSE;
1462 BOOL    tcp_nodelay            = TRUE;
1463 int     tcp_out_fastopen       = 0;
1464 BOOL    tcp_out_fastopen_logged= FALSE;
1465 #ifdef USE_TCP_WRAPPERS
1466 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1467 #endif
1468 int     test_harness_load_avg  = 0;
1469 int     thismessage_size_limit = 0;
1470 int     timeout_frozen_after   = 0;
1471 BOOL    timestamps_utc         = FALSE;
1472
1473 transport_instance  *transports = NULL;
1474
1475 transport_instance  transport_defaults = {
1476     .next =                     NULL,
1477     .name =                     NULL,
1478     .info =                     NULL,
1479     .options_block =            NULL,
1480     .driver_name =              NULL,
1481     .setup =                    NULL,
1482     .batch_max =                1,
1483     .batch_id =                 NULL,
1484     .home_dir =                 NULL,
1485     .current_dir =              NULL,
1486     .expand_multi_domain =      NULL,
1487     .multi_domain =             TRUE,
1488     .overrides_hosts =          FALSE,
1489     .max_addresses =            100,
1490     .connection_max_messages =  500,
1491     .deliver_as_creator =       FALSE,
1492     .disable_logging =          FALSE,
1493     .initgroups =               FALSE,
1494     .uid_set =                  FALSE,
1495     .gid_set =                  FALSE,
1496     .uid =                      (uid_t)(-1),
1497     .gid =                      (gid_t)(-1),
1498     .expand_uid =               NULL,
1499     .expand_gid =               NULL,
1500     .warn_message =             NULL,
1501     .shadow =                   NULL,
1502     .shadow_condition =         NULL,
1503     .filter_command =           NULL,
1504     .add_headers =              NULL,
1505     .remove_headers =           NULL,
1506     .return_path =              NULL,
1507     .debug_string =             NULL,
1508     .max_parallel =             NULL,
1509     .message_size_limit =       NULL,
1510     .headers_rewrite =          NULL,
1511     .rewrite_rules =            NULL,
1512     .rewrite_existflags =       0,
1513     .filter_timeout =           300,
1514     .body_only =                FALSE,
1515     .delivery_date_add =        FALSE,
1516     .envelope_to_add =          FALSE,
1517     .headers_only =             FALSE,
1518     .rcpt_include_affixes =     FALSE,
1519     .return_path_add =          FALSE,
1520     .return_output =            FALSE,
1521     .return_fail_output =       FALSE,
1522     .log_output =               FALSE,
1523     .log_fail_output =          FALSE,
1524     .log_defer_output =         FALSE,
1525     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1526                                                  1 nor 0 so can detect unset */
1527 #ifndef DISABLE_EVENT
1528    .event_action =              NULL
1529 #endif
1530 };
1531
1532 int     transport_count;
1533 uschar *transport_name          = NULL;
1534 int     transport_newlines;
1535 const uschar **transport_filter_argv  = NULL;
1536 int     transport_filter_timeout;
1537 BOOL    transport_filter_timed_out = FALSE;
1538 int     transport_write_timeout= 0;
1539
1540 tree_node  *tree_dns_fails     = NULL;
1541 tree_node  *tree_duplicates    = NULL;
1542 tree_node  *tree_nonrecipients = NULL;
1543 tree_node  *tree_unusable      = NULL;
1544
1545 BOOL    trusted_caller         = FALSE;
1546 BOOL    trusted_config         = TRUE;
1547 gid_t  *trusted_groups         = NULL;
1548 uid_t  *trusted_users          = NULL;
1549 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1550
1551 uschar *unknown_login          = NULL;
1552 uschar *unknown_username       = NULL;
1553 uschar *untrusted_set_sender   = NULL;
1554
1555 /*  A regex for matching a "From_" line in an incoming message, in the form
1556
1557     From ph10 Fri Jan  5 12:35 GMT 1996
1558
1559 which  the "mail" commands send to the MTA (undocumented, of course), or in
1560 the  form
1561
1562     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1563
1564 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1565 Because  of variations in time formats, just match up to the minutes. That
1566 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1567 so  just require one digit for hours and minutes. The weekday is also absent
1568 in  some forms. */
1569
1570 uschar *uucp_from_pattern      = US
1571    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1572    "(?:"                                          /* Non-extracting bracket */
1573    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1574    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1575    ")"                                            /* End alternation */
1576    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1577
1578 uschar *uucp_from_sender       = US"$1";
1579
1580 uschar *verify_mode            = NULL;
1581 uschar *version_copyright      =
1582  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1583    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1584 uschar *version_date           = US"?";
1585 uschar *version_cnumber        = US"????";
1586 uschar *version_string         = US"?";
1587
1588 uschar *warn_message_file      = NULL;
1589 int     warning_count          = 0;
1590 uschar *warnmsg_delay          = NULL;
1591 uschar *warnmsg_recipients     = NULL;
1592 BOOL    write_rejectlog        = TRUE;
1593
1594
1595 /*  End of globals.c */