src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2014 */
   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 = sizeof(optionlist_auths)/sizeof(optionlist);
  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 #endif
  53
  54 #ifdef EXPAND_DLFUNC
  55 tree_node *dlobj_anchor        = NULL;
  56 #endif
  57
  58 #ifdef LOOKUP_IBASE
  59 uschar *ibase_servers          = NULL;
  60 #endif
  61
  62 #ifdef LOOKUP_LDAP
  63 uschar *eldap_ca_cert_dir      = NULL;
  64 uschar *eldap_ca_cert_file     = NULL;
  65 uschar *eldap_cert_file        = NULL;
  66 uschar *eldap_cert_key         = NULL;
  67 uschar *eldap_cipher_suite     = NULL;
  68 uschar *eldap_default_servers  = NULL;
  69 uschar *eldap_require_cert     = NULL;
  70 int     eldap_version          = -1;
  71 BOOL    eldap_start_tls        = FALSE;
  72 #endif
  73
  74 #ifdef LOOKUP_MYSQL
  75 uschar *mysql_servers          = NULL;
  76 #endif
  77
  78 #ifdef LOOKUP_ORACLE
  79 uschar *oracle_servers         = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_PGSQL
  83 uschar *pgsql_servers          = NULL;
  84 #endif
  85
  86 #ifdef EXPERIMENTAL_REDIS
  87 uschar *redis_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 tls_support tls_in = {
 103  -1,   /* tls_active */
 104  0,    /* tls_bits */
 105  FALSE,/* tls_certificate_verified */
 106 #ifdef EXPERIMENTAL_DANE
 107  FALSE,/* dane_verified */
 108  0,    /* tlsa_usage */
 109 #endif
 110  NULL, /* tls_cipher */
 111  FALSE,/* tls_on_connect */
 112  NULL, /* tls_on_connect_ports */
 113  NULL, /* tls_ourcert */
 114  NULL, /* tls_peercert */
 115  NULL, /* tls_peerdn */
 116  NULL, /* tls_sni */
 117  0     /* tls_ocsp */
 118 };
 119 tls_support tls_out = {
 120  -1,   /* tls_active */
 121  0,    /* tls_bits */
 122  FALSE,/* tls_certificate_verified */
 123 #ifdef EXPERIMENTAL_DANE
 124  FALSE,/* dane_verified */
 125  0,    /* tlsa_usage */
 126 #endif
 127  NULL, /* tls_cipher */
 128  FALSE,/* tls_on_connect */
 129  NULL, /* tls_on_connect_ports */
 130  NULL, /* tls_ourcert */
 131  NULL, /* tls_peercert */
 132  NULL, /* tls_peerdn */
 133  NULL, /* tls_sni */
 134  0     /* tls_ocsp */
 135 };
 136
 137 #ifdef EXPERIMENTAL_DSN
 138 uschar *dsn_envid              = NULL;
 139 int     dsn_ret                = 0;
 140 const pcre  *regex_DSN         = NULL;
 141 BOOL    smtp_use_dsn           = FALSE;
 142 uschar *dsn_advertise_hosts    = NULL;
 143 #endif
 144
 145 #ifdef SUPPORT_TLS
 146 BOOL    gnutls_compat_mode     = FALSE;
 147 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 148 uschar *gnutls_require_mac     = NULL;
 149 uschar *gnutls_require_kx      = NULL;
 150 uschar *gnutls_require_proto   = NULL;
 151 uschar *openssl_options        = NULL;
 152 const pcre *regex_STARTTLS     = NULL;
 153 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 154 uschar *tls_certificate        = NULL;
 155 uschar *tls_crl                = NULL;
 156 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 157 that's the interop problem which has been observed: GnuTLS suggesting a higher
 158 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 159 int     tls_dh_max_bits        = 2236;
 160 uschar *tls_dhparam            = NULL;
 161 #ifndef DISABLE_OCSP
 162 uschar *tls_ocsp_file          = NULL;
 163 #endif
 164 BOOL    tls_offered            = FALSE;
 165 uschar *tls_privatekey         = NULL;
 166 BOOL    tls_remember_esmtp     = FALSE;
 167 uschar *tls_require_ciphers    = NULL;
 168 uschar *tls_try_verify_hosts   = NULL;
 169 uschar *tls_verify_certificates= NULL;
 170 uschar *tls_verify_hosts       = NULL;
 171 #endif
 172
 173 #ifndef DISABLE_PRDR
 174 /* Per Recipient Data Response variables */
 175 BOOL    prdr_enable            = FALSE;
 176 BOOL    prdr_requested         = FALSE;
 177 const pcre *regex_PRDR         = NULL;
 178 #endif
 179
 180 /* Input-reading functions for messages, so we can use special ones for
 181 incoming TCP/IP. The defaults use stdin. We never need these for any
 182 stand-alone tests. */
 183
 184 #ifndef STAND_ALONE
 185 int (*receive_getc)(void)      = stdin_getc;
 186 int (*receive_ungetc)(int)     = stdin_ungetc;
 187 int (*receive_feof)(void)      = stdin_feof;
 188 int (*receive_ferror)(void)    = stdin_ferror;
 189 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 190 #endif
 191
 192
 193 /* List of per-address expansion variables for clearing and saving/restoring
 194 when verifying one address while routing/verifying another. We have to have
 195 the size explicit, because it is referenced from more than one module. */
 196
 197 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 198   &deliver_address_data,
 199   &deliver_domain,
 200   &deliver_domain_data,
 201   &deliver_domain_orig,
 202   &deliver_domain_parent,
 203   &deliver_localpart,
 204   &deliver_localpart_data,
 205   &deliver_localpart_orig,
 206   &deliver_localpart_parent,
 207   &deliver_localpart_prefix,
 208   &deliver_localpart_suffix,
 209   (uschar **)(&deliver_recipients),
 210   &deliver_host,
 211   &deliver_home,
 212   &address_file,
 213   &address_pipe,
 214   &self_hostname,
 215   NULL };
 216
 217 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 218
 219 /* General global variables */
 220
 221 header_line *acl_added_headers = NULL;
 222 tree_node *acl_anchor          = NULL;
 223 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 224                                   NULL, NULL, NULL, NULL};
 225 int     acl_narg               = 0;
 226
 227 uschar *acl_not_smtp           = NULL;
 228 #ifdef WITH_CONTENT_SCAN
 229 uschar *acl_not_smtp_mime      = NULL;
 230 #endif
 231 uschar *acl_not_smtp_start     = NULL;
 232 uschar *acl_removed_headers    = NULL;
 233 uschar *acl_smtp_auth          = NULL;
 234 uschar *acl_smtp_connect       = NULL;
 235 uschar *acl_smtp_data          = NULL;
 236 #ifndef DISABLE_PRDR
 237 uschar *acl_smtp_data_prdr     = NULL;
 238 #endif
 239 #ifndef DISABLE_DKIM
 240 uschar *acl_smtp_dkim          = NULL;
 241 #endif
 242 uschar *acl_smtp_etrn          = NULL;
 243 uschar *acl_smtp_expn          = NULL;
 244 uschar *acl_smtp_helo          = NULL;
 245 uschar *acl_smtp_mail          = NULL;
 246 uschar *acl_smtp_mailauth      = NULL;
 247 #ifdef WITH_CONTENT_SCAN
 248 uschar *acl_smtp_mime          = NULL;
 249 #endif
 250 uschar *acl_smtp_notquit       = NULL;
 251 uschar *acl_smtp_predata       = NULL;
 252 uschar *acl_smtp_quit          = NULL;
 253 uschar *acl_smtp_rcpt          = NULL;
 254 uschar *acl_smtp_starttls      = NULL;
 255 uschar *acl_smtp_vrfy          = NULL;
 256
 257 BOOL    acl_temp_details       = FALSE;
 258 tree_node *acl_var_c           = NULL;
 259 tree_node *acl_var_m           = NULL;
 260 uschar *acl_verify_message     = NULL;
 261 string_item *acl_warn_logged   = NULL;
 262
 263 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 264 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 265
 266 uschar *acl_wherenames[]       = { US"RCPT",
 267                                    US"MAIL",
 268                                    US"PREDATA",
 269                                    US"MIME",
 270                                    US"DKIM",
 271                                    US"DATA",
 272 #ifndef DISABLE_PRDR
 273                                    US"PRDR",
 274 #endif
 275                                    US"non-SMTP",
 276                                    US"AUTH",
 277                                    US"connection",
 278                                    US"ETRN",
 279                                    US"EXPN",
 280                                    US"EHLO or HELO",
 281                                    US"MAILAUTH",
 282                                    US"non-SMTP-start",
 283                                    US"NOTQUIT",
 284                                    US"QUIT",
 285                                    US"STARTTLS",
 286                                    US"VRFY",
 287                                    US"delivery",
 288                                    US"unknown"
 289                                  };
 290
 291 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 292                                    US"550",     /* MAIL */
 293                                    US"550",     /* PREDATA */
 294                                    US"550",     /* MIME */
 295                                    US"550",     /* DKIM */
 296                                    US"550",     /* DATA */
 297 #ifndef DISABLE_PRDR
 298                                    US"550",    /* RCPT PRDR */
 299 #endif
 300                                    US"0",       /* not SMTP; not relevant */
 301                                    US"503",     /* AUTH */
 302                                    US"550",     /* connect */
 303                                    US"458",     /* ETRN */
 304                                    US"550",     /* EXPN */
 305                                    US"550",     /* HELO/EHLO */
 306                                    US"0",       /* MAILAUTH; not relevant */
 307                                    US"0",       /* not SMTP; not relevant */
 308                                    US"0",       /* NOTQUIT; not relevant */
 309                                    US"0",       /* QUIT; not relevant */
 310                                    US"550",     /* STARTTLS */
 311                                    US"252",     /* VRFY */
 312                                    US"0",       /* delivery; not relevant */
 313                                    US"0"        /* unknown; not relevant */
 314                                  };
 315
 316 BOOL    active_local_from_check = FALSE;
 317 BOOL    active_local_sender_retain = FALSE;
 318 int     body_8bitmime = 0;
 319 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 320 uschar *add_environment        = NULL;
 321 address_item  *addr_duplicate  = NULL;
 322
 323 address_item address_defaults = {
 324   NULL,                 /* next */
 325   NULL,                 /* parent */
 326   NULL,                 /* first */
 327   NULL,                 /* dupof */
 328   NULL,                 /* start_router */
 329   NULL,                 /* router */
 330   NULL,                 /* transport */
 331   NULL,                 /* host_list */
 332   NULL,                 /* host_used */
 333   NULL,                 /* fallback_hosts */
 334   NULL,                 /* reply */
 335   NULL,                 /* retries */
 336   NULL,                 /* address */
 337   NULL,                 /* unique */
 338   NULL,                 /* cc_local_part */
 339   NULL,                 /* lc_local_part */
 340   NULL,                 /* local_part */
 341   NULL,                 /* prefix */
 342   NULL,                 /* suffix */
 343   NULL,                 /* domain */
 344   NULL,                 /* address_retry_key */
 345   NULL,                 /* domain_retry_key */
 346   NULL,                 /* current_dir */
 347   NULL,                 /* home_dir */
 348   NULL,                 /* message */
 349   NULL,                 /* user_message */
 350   NULL,                 /* onetime_parent */
 351   NULL,                 /* pipe_expandn */
 352   NULL,                 /* return_filename */
 353   NULL,                 /* self_hostname */
 354   NULL,                 /* shadow_message */
 355   #ifdef SUPPORT_TLS
 356   NULL,                 /* cipher */
 357   NULL,                 /* ourcert */
 358   NULL,                 /* peercert */
 359   NULL,                 /* peerdn */
 360   OCSP_NOT_REQ,         /* ocsp */
 361   #endif
 362   NULL,                 /* authenticator */
 363   NULL,                 /* auth_id */
 364   NULL,                 /* auth_sndr */
 365   #ifdef EXPERIMENTAL_DSN
 366   NULL,                 /* dsn_orcpt */
 367   0,                    /* dsn_flags */
 368   0,                    /* dsn_aware */
 369   #endif
 370   (uid_t)(-1),          /* uid */
 371   (gid_t)(-1),          /* gid */
 372   0,                    /* flags */
 373   { 0 },                /* domain_cache - any larger array should be zeroed */
 374   { 0 },                /* localpart_cache - ditto */
 375   -1,                   /* mode */
 376   0,                    /* more_errno */
 377   ERRNO_UNKNOWNERROR,   /* basic_errno */
 378   0,                    /* child_count */
 379   -1,                   /* return_file */
 380   SPECIAL_NONE,         /* special_action */
 381   DEFER,                /* transport_return */
 382   {                     /* fields that are propagated to children */
 383     NULL,               /* address_data */
 384     NULL,               /* domain_data */
 385     NULL,               /* localpart_data */
 386     NULL,               /* errors_address */
 387     NULL,               /* extra_headers */
 388     NULL,               /* remove_headers */
 389 #ifdef EXPERIMENTAL_SRS
 390     NULL,               /* srs_sender */
 391 #endif
 392   }
 393 };
 394
 395 uschar *address_file           = NULL;
 396 uschar *address_pipe           = NULL;
 397 BOOL    address_test_mode      = FALSE;
 398 tree_node *addresslist_anchor  = NULL;
 399 int     addresslist_count      = 0;
 400 gid_t  *admin_groups           = NULL;
 401 BOOL    admin_user             = FALSE;
 402 BOOL    allow_auth_unadvertised= FALSE;
 403 BOOL    allow_domain_literals  = FALSE;
 404 BOOL    allow_mx_to_ip         = FALSE;
 405 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 406 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 407 BOOL    allow_utf8_domains     = FALSE;
 408 uschar *authenticated_fail_id  = NULL;
 409 uschar *authenticated_id       = NULL;
 410 uschar *authenticated_sender   = NULL;
 411 BOOL    authentication_failed  = FALSE;
 412 auth_instance  *auths          = NULL;
 413 uschar *auth_advertise_hosts   = US"*";
 414 auth_instance auth_defaults    = {
 415     NULL,                      /* chain pointer */
 416     NULL,                      /* name */
 417     NULL,                      /* info */
 418     NULL,                      /* private options block pointer */
 419     NULL,                      /* driver_name */
 420     NULL,                      /* advertise_condition */
 421     NULL,                      /* client_condition */
 422     NULL,                      /* public_name */
 423     NULL,                      /* set_id */
 424     NULL,                      /* set_client_id */
 425     NULL,                      /* server_mail_auth_condition */
 426     NULL,                      /* server_debug_string */
 427     NULL,                      /* server_condition */
 428     FALSE,                     /* client */
 429     FALSE,                     /* server */
 430     FALSE                      /* advertised */
 431 };
 432
 433 uschar *auth_defer_msg         = US"reason not recorded";
 434 uschar *auth_defer_user_msg    = US"";
 435 uschar *auth_vars[AUTH_VARS];
 436 int     auto_thaw              = 0;
 437 #ifdef WITH_CONTENT_SCAN
 438 BOOL    av_failed              = FALSE;
 439 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 440 #endif
 441
 442 BOOL    background_daemon      = TRUE;
 443
 444 #if BASE_62 == 62
 445 uschar *base62_chars=
 446     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 447 #else
 448 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 449 #endif
 450
 451 uschar *bi_command             = NULL;
 452 uschar *big_buffer             = NULL;
 453 int     big_buffer_size        = BIG_BUFFER_SIZE;
 454 #ifdef EXPERIMENTAL_BRIGHTMAIL
 455 uschar *bmi_alt_location       = NULL;
 456 uschar *bmi_base64_tracker_verdict = NULL;
 457 uschar *bmi_base64_verdict     = NULL;
 458 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 459 int     bmi_deliver            = 1;
 460 int     bmi_run                = 0;
 461 uschar *bmi_verdicts           = NULL;
 462 #endif
 463 int     body_linecount         = 0;
 464 int     body_zerocount         = 0;
 465 uschar *bounce_message_file    = NULL;
 466 uschar *bounce_message_text    = NULL;
 467 uschar *bounce_recipient       = NULL;
 468 BOOL    bounce_return_body     = TRUE;
 469 BOOL    bounce_return_message  = TRUE;
 470 int     bounce_return_size_limit = 100*1024;
 471 uschar *bounce_sender_authentication = NULL;
 472 int     bsmtp_transaction_linecount = 0;
 473
 474 int     callout_cache_domain_positive_expire = 7*24*60*60;
 475 int     callout_cache_domain_negative_expire = 3*60*60;
 476 int     callout_cache_positive_expire = 24*60*60;
 477 int     callout_cache_negative_expire = 2*60*60;
 478 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 479 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 480 int     check_log_inodes       = 0;
 481 int     check_log_space        = 0;
 482 BOOL    check_rfc2047_length   = TRUE;
 483 int     check_spool_inodes     = 0;
 484 int     check_spool_space      = 0;
 485 uschar  *client_authenticator  = NULL;
 486 uschar  *client_authenticated_id = NULL;
 487 uschar  *client_authenticated_sender = NULL;
 488 int     clmacro_count          = 0;
 489 uschar *clmacros[MAX_CLMACROS];
 490 BOOL    config_changed         = FALSE;
 491 FILE   *config_file            = NULL;
 492 uschar *config_filename        = NULL;
 493 int     config_lineno          = 0;
 494 #ifdef CONFIGURE_GROUP
 495 gid_t   config_gid             = CONFIGURE_GROUP;
 496 #endif
 497 uschar *config_main_filelist   = US CONFIGURE_FILE
 498                          "\0<-----------Space to patch configure_filename->";
 499 uschar *config_main_filename   = NULL;
 500
 501 #ifdef CONFIGURE_OWNER
 502 uid_t   config_uid             = CONFIGURE_OWNER;
 503 #endif
 504
 505 int     connection_max_messages= -1;
 506 uschar *continue_hostname      = NULL;
 507 uschar *continue_host_address  = NULL;
 508 BOOL    continue_more          = FALSE;
 509 int     continue_sequence      = 1;
 510 uschar *continue_transport     = NULL;
 511
 512 uschar *csa_status             = NULL;
 513 BOOL    cutthrough_delivery    = FALSE;
 514 int     cutthrough_fd          = -1;
 515
 516 BOOL    daemon_listen          = FALSE;
 517 uschar *daemon_smtp_port       = US"smtp";
 518 int     daemon_startup_retries = 9;
 519 int     daemon_startup_sleep   = 30;
 520
 521 #ifdef EXPERIMENTAL_DCC
 522 BOOL    dcc_direct_add_header  = FALSE;
 523 uschar *dcc_header             = NULL;
 524 uschar *dcc_result             = NULL;
 525 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 526 uschar *dccifd_options         = US"header";
 527 #endif
 528
 529 BOOL    debug_daemon           = FALSE;
 530 int     debug_fd               = -1;
 531 FILE   *debug_file             = NULL;
 532 bit_table debug_options[]      = {
 533   { US"acl",            D_acl },
 534   { US"all",            D_all },
 535   { US"auth",           D_auth },
 536   { US"deliver",        D_deliver },
 537   { US"dns",            D_dns },
 538   { US"dnsbl",          D_dnsbl },
 539   { US"exec",           D_exec },
 540   { US"expand",         D_expand },
 541   { US"filter",         D_filter },
 542   { US"hints_lookup",   D_hints_lookup },
 543   { US"host_lookup",    D_host_lookup },
 544   { US"ident",          D_ident },
 545   { US"interface",      D_interface },
 546   { US"lists",          D_lists },
 547   { US"load",           D_load },
 548   { US"local_scan",     D_local_scan },
 549   { US"lookup",         D_lookup },
 550   { US"memory",         D_memory },
 551   { US"pid",            D_pid },
 552   { US"process_info",   D_process_info },
 553   { US"queue_run",      D_queue_run },
 554   { US"receive",        D_receive },
 555   { US"resolver",       D_resolver },
 556   { US"retry",          D_retry },
 557   { US"rewrite",        D_rewrite },
 558   { US"route",          D_route },
 559   { US"timestamp",      D_timestamp },
 560   { US"tls",            D_tls },
 561   { US"transport",      D_transport },
 562   { US"uid",            D_uid },
 563   { US"verify",         D_verify }
 564 };
 565 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 566 unsigned int debug_selector    = 0;
 567 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 568 uschar *delay_warning_condition=
 569   US"${if or {"
 570             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 571             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 572             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 573             "} {no}{yes}}";
 574 BOOL    delivery_date_remove   = TRUE;
 575 uschar *deliver_address_data   = NULL;
 576 int     deliver_datafile       = -1;
 577 uschar *deliver_domain         = NULL;
 578 uschar *deliver_domain_data    = NULL;
 579 uschar *deliver_domain_orig    = NULL;
 580 uschar *deliver_domain_parent  = NULL;
 581 BOOL    deliver_drop_privilege = FALSE;
 582 BOOL    deliver_firsttime      = FALSE;
 583 BOOL    deliver_force          = FALSE;
 584 BOOL    deliver_freeze         = FALSE;
 585 time_t  deliver_frozen_at      = 0;
 586 uschar *deliver_home           = NULL;
 587 uschar *deliver_host           = NULL;
 588 uschar *deliver_host_address   = NULL;
 589 int     deliver_host_port      = 0;
 590 uschar *deliver_in_buffer      = NULL;
 591 ino_t   deliver_inode          = 0;
 592 uschar *deliver_localpart      = NULL;
 593 uschar *deliver_localpart_data = NULL;
 594 uschar *deliver_localpart_orig = NULL;
 595 uschar *deliver_localpart_parent = NULL;
 596 uschar *deliver_localpart_prefix = NULL;
 597 uschar *deliver_localpart_suffix = NULL;
 598 BOOL    deliver_force_thaw     = FALSE;
 599 BOOL    deliver_manual_thaw    = FALSE;
 600 uschar *deliver_out_buffer     = NULL;
 601 int     deliver_queue_load_max = -1;
 602 address_item  *deliver_recipients = NULL;
 603 uschar *deliver_selectstring   = NULL;
 604 BOOL    deliver_selectstring_regex = FALSE;
 605 uschar *deliver_selectstring_sender = NULL;
 606 BOOL    deliver_selectstring_sender_regex = FALSE;
 607 #ifdef WITH_OLD_DEMIME
 608 int     demime_errorlevel      = 0;
 609 int     demime_ok              = 0;
 610 uschar *demime_reason          = NULL;
 611 #endif
 612 BOOL    disable_callout_flush  = FALSE;
 613 BOOL    disable_delay_flush    = FALSE;
 614 #ifdef ENABLE_DISABLE_FSYNC
 615 BOOL    disable_fsync          = FALSE;
 616 #endif
 617 BOOL    disable_ipv6           = FALSE;
 618 BOOL    disable_logging        = FALSE;
 619
 620 #ifndef DISABLE_DKIM
 621 uschar *dkim_cur_signer          = NULL;
 622 uschar *dkim_signers             = NULL;
 623 uschar *dkim_signing_domain      = NULL;
 624 uschar *dkim_signing_selector    = NULL;
 625 uschar *dkim_verify_signers      = US"$dkim_signers";
 626 BOOL    dkim_collect_input       = FALSE;
 627 BOOL    dkim_disable_verify      = FALSE;
 628 #endif
 629 #ifdef EXPERIMENTAL_DMARC
 630 BOOL    dmarc_has_been_checked  = FALSE;
 631 uschar *dmarc_ar_header         = NULL;
 632 uschar *dmarc_domain_policy     = NULL;
 633 uschar *dmarc_forensic_sender   = NULL;
 634 uschar *dmarc_history_file      = NULL;
 635 uschar *dmarc_status            = NULL;
 636 uschar *dmarc_status_text       = NULL;
 637 uschar *dmarc_tld_file          = NULL;
 638 uschar *dmarc_used_domain       = NULL;
 639 BOOL    dmarc_disable_verify    = FALSE;
 640 BOOL    dmarc_enable_forensic   = FALSE;
 641 #endif
 642
 643 uschar *dns_again_means_nonexist = NULL;
 644 int     dns_csa_search_limit   = 5;
 645 BOOL    dns_csa_use_reverse    = TRUE;
 646 #ifdef EXPERIMENTAL_DANE
 647 int     dns_dane_ok            = -1;
 648 #endif
 649 uschar *dns_ipv4_lookup        = NULL;
 650 int     dns_retrans            = 0;
 651 int     dns_retry              = 0;
 652 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 653 int     dns_use_edns0          = -1; /* <0 = not coerced */
 654 uschar *dnslist_domain         = NULL;
 655 uschar *dnslist_matched        = NULL;
 656 uschar *dnslist_text           = NULL;
 657 uschar *dnslist_value          = NULL;
 658 tree_node *domainlist_anchor   = NULL;
 659 int     domainlist_count       = 0;
 660 BOOL    dont_deliver           = FALSE;
 661 BOOL    dot_ends               = TRUE;
 662 BOOL    drop_cr                = FALSE;         /* No longer used */
 663 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 664
 665 BOOL    enable_dollar_recipients = FALSE;
 666 BOOL    envelope_to_remove     = TRUE;
 667 int     errno_quota            = ERRNO_QUOTA;
 668 uschar *errors_copy            = NULL;
 669 int     error_handling         = ERRORS_SENDER;
 670 uschar *errors_reply_to        = NULL;
 671 int     errors_sender_rc       = EXIT_FAILURE;
 672 #ifdef EXPERIMENTAL_EVENT
 673 uschar *event_action             = NULL;        /* expansion for delivery events */
 674 uschar *event_data               = NULL;        /* auxilary data variable for event */
 675 int     event_defer_errno        = 0;
 676 uschar *event_name               = NULL;        /* event name variable */
 677 #endif
 678
 679
 680 gid_t   exim_gid               = EXIM_GID;
 681 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 682 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 683                         "\0<---------------Space to patch exim_path->";
 684 uid_t   exim_uid               = EXIM_UID;
 685 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 686 int     expand_forbid          = 0;
 687 int     expand_nlength[EXPAND_MAXN+1];
 688 int     expand_nmax            = -1;
 689 uschar *expand_nstring[EXPAND_MAXN+1];
 690 BOOL    expand_string_forcedfail = FALSE;
 691 uschar *expand_string_message;
 692 BOOL    extract_addresses_remove_arguments = TRUE;
 693 uschar *extra_local_interfaces = NULL;
 694
 695 int     fake_response          = OK;
 696 uschar *fake_response_text     = US"Your message has been rejected but is "
 697                                    "being kept for evaluation.\nIf it was a "
 698                                    "legitimate message, it may still be "
 699                                    "delivered to the target recipient(s).";
 700 int     filter_n[FILTER_VARIABLE_COUNT];
 701 BOOL    filter_running         = FALSE;
 702 int     filter_sn[FILTER_VARIABLE_COUNT];
 703 int     filter_test            = FTEST_NONE;
 704 uschar *filter_test_sfile      = NULL;
 705 uschar *filter_test_ufile      = NULL;
 706 uschar *filter_thisaddress     = NULL;
 707 int     finduser_retries       = 0;
 708 #ifdef WITH_OLD_DEMIME
 709 uschar *found_extension        = NULL;
 710 #endif
 711 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 712 uschar *freeze_tell            = NULL;
 713 uschar *freeze_tell_config     = NULL;
 714 uschar *fudged_queue_times     = US"";
 715
 716 uschar *gecos_name             = NULL;
 717 uschar *gecos_pattern          = NULL;
 718 rewrite_rule  *global_rewrite_rules = NULL;
 719
 720 uschar *headers_charset        = US HEADERS_CHARSET;
 721 int     header_insert_maxlen   = 64 * 1024;
 722 header_line  *header_last      = NULL;
 723 header_line  *header_list      = NULL;
 724 int     header_maxsize         = HEADER_MAXSIZE;
 725 int     header_line_maxsize    = 0;
 726
 727 header_name header_names[] = {
 728   { US"bcc",            3, TRUE,  htype_bcc },
 729   { US"cc",             2, TRUE,  htype_cc },
 730   { US"date",           4, TRUE,  htype_date },
 731   { US"delivery-date", 13, FALSE, htype_delivery_date },
 732   { US"envelope-to",   11, FALSE, htype_envelope_to },
 733   { US"from",           4, TRUE,  htype_from },
 734   { US"message-id",    10, TRUE,  htype_id },
 735   { US"received",       8, FALSE, htype_received },
 736   { US"reply-to",       8, FALSE, htype_reply_to },
 737   { US"return-path",   11, FALSE, htype_return_path },
 738   { US"sender",         6, TRUE,  htype_sender },
 739   { US"subject",        7, FALSE, htype_subject },
 740   { US"to",             2, TRUE,  htype_to }
 741 };
 742
 743 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 744
 745 BOOL    header_rewritten       = FALSE;
 746 uschar *helo_accept_junk_hosts = NULL;
 747 uschar *helo_allow_chars       = US"";
 748 uschar *helo_lookup_domains    = US"@ : @[]";
 749 uschar *helo_try_verify_hosts  = NULL;
 750 BOOL    helo_verified          = FALSE;
 751 BOOL    helo_verify_failed     = FALSE;
 752 uschar *helo_verify_hosts      = NULL;
 753 const uschar *hex_digits       = CUS"0123456789abcdef";
 754 uschar *hold_domains           = NULL;
 755 BOOL    host_checking          = FALSE;
 756 BOOL    host_checking_callout  = FALSE;
 757 uschar *host_data              = NULL;
 758 BOOL    host_find_failed_syntax= FALSE;
 759 uschar *host_lookup            = NULL;
 760 BOOL    host_lookup_deferred   = FALSE;
 761 BOOL    host_lookup_failed     = FALSE;
 762 uschar *host_lookup_order      = US"bydns:byaddr";
 763 uschar *host_lookup_msg        = US"";
 764 int     host_number            = 0;
 765 uschar *host_number_string     = NULL;
 766 uschar *host_reject_connection = NULL;
 767 tree_node *hostlist_anchor     = NULL;
 768 int     hostlist_count         = 0;
 769 uschar *hosts_treat_as_local   = NULL;
 770 uschar *hosts_connection_nolog = NULL;
 771
 772 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 773 BOOL    ignore_fromline_local  = FALSE;
 774 uschar *ignore_fromline_hosts  = NULL;
 775 BOOL    inetd_wait_mode        = FALSE;
 776 int     inetd_wait_timeout     = -1;
 777 uschar *interface_address      = NULL;
 778 int     interface_port         = -1;
 779 BOOL    is_inetd               = FALSE;
 780 uschar *iterate_item           = NULL;
 781
 782 int     journal_fd             = -1;
 783
 784 uschar *keep_environment       = NULL;
 785
 786 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 787
 788 uschar *eldap_dn               = NULL;
 789 int     load_average           = -2;
 790 BOOL    local_error_message    = FALSE;
 791 BOOL    local_from_check       = TRUE;
 792 uschar *local_from_prefix      = NULL;
 793 uschar *local_from_suffix      = NULL;
 794
 795 #if HAVE_IPV6
 796 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 797 #else
 798 uschar *local_interfaces       = US"0.0.0.0";
 799 #endif
 800
 801 uschar *local_scan_data        = NULL;
 802 int     local_scan_timeout     = 5*60;
 803 BOOL    local_sender_retain    = FALSE;
 804 gid_t   local_user_gid         = (gid_t)(-1);
 805 uid_t   local_user_uid         = (uid_t)(-1);
 806
 807 tree_node *localpartlist_anchor= NULL;
 808 int     localpartlist_count    = 0;
 809 uschar *log_buffer             = NULL;
 810 unsigned int log_extra_selector = LX_default;
 811 uschar *log_file_path          = US LOG_FILE_PATH
 812                            "\0<--------------Space to patch log_file_path->";
 813
 814 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 815 are the ones that get put into log_write_selector. They can be used in calls to
 816 log_write() to test for the bit. The options with LX_xxx identifiers have
 817 values greater than 0x80000000 and are put into log_extra_selector (without the
 818 top bit). They are never used in calls to log_write(), but are tested
 819 independently. This separation became necessary when the number of log
 820 selectors was getting close to filling a 32-bit word. */
 821
 822 /* Note that this list must be in alphabetical order. */
 823
 824 bit_table log_options[]        = {
 825   { US"8bitmime",                     LX_8bitmime },
 826   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 827   { US"address_rewrite",              L_address_rewrite },
 828   { US"all",                          L_all },
 829   { US"all_parents",                  L_all_parents },
 830   { US"arguments",                    LX_arguments },
 831   { US"connection_reject",            L_connection_reject },
 832   { US"delay_delivery",               L_delay_delivery },
 833   { US"deliver_time",                 LX_deliver_time },
 834   { US"delivery_size",                LX_delivery_size },
 835   { US"dnslist_defer",                L_dnslist_defer },
 836   { US"etrn",                         L_etrn },
 837   { US"host_lookup_failed",           L_host_lookup_failed },
 838   { US"ident_timeout",                LX_ident_timeout },
 839   { US"incoming_interface",           LX_incoming_interface },
 840   { US"incoming_port",                LX_incoming_port },
 841   { US"lost_incoming_connection",     L_lost_incoming_connection },
 842   { US"outgoing_port",                LX_outgoing_port },
 843   { US"pid",                          LX_pid },
 844 #ifdef EXPERIMENTAL_PROXY
 845   { US"proxy",                        LX_proxy },
 846 #endif
 847   { US"queue_run",                    L_queue_run },
 848   { US"queue_time",                   LX_queue_time },
 849   { US"queue_time_overall",           LX_queue_time_overall },
 850   { US"received_recipients",          LX_received_recipients },
 851   { US"received_sender",              LX_received_sender },
 852   { US"rejected_header",              LX_rejected_header },
 853   { US"rejected_headers",             LX_rejected_header },
 854   { US"retry_defer",                  L_retry_defer },
 855   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 856   { US"sender_on_delivery",           LX_sender_on_delivery },
 857   { US"sender_verify_fail",           LX_sender_verify_fail },
 858   { US"size_reject",                  L_size_reject },
 859   { US"skip_delivery",                L_skip_delivery },
 860   { US"smtp_confirmation",            LX_smtp_confirmation },
 861   { US"smtp_connection",              L_smtp_connection },
 862   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 863   { US"smtp_mailauth",                LX_smtp_mailauth },
 864   { US"smtp_no_mail",                 LX_smtp_no_mail },
 865   { US"smtp_protocol_error",          L_smtp_protocol_error },
 866   { US"smtp_syntax_error",            L_smtp_syntax_error },
 867   { US"subject",                      LX_subject },
 868   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 869   { US"tls_cipher",                   LX_tls_cipher },
 870   { US"tls_peerdn",                   LX_tls_peerdn },
 871   { US"tls_sni",                      LX_tls_sni },
 872   { US"unknown_in_list",              LX_unknown_in_list }
 873 };
 874
 875 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 876 int     log_reject_target      = 0;
 877 uschar *log_selector_string    = NULL;
 878 FILE   *log_stderr             = NULL;
 879 BOOL    log_testing_mode       = FALSE;
 880 BOOL    log_timezone           = FALSE;
 881 unsigned int log_write_selector= L_default;
 882 uschar *login_sender_address   = NULL;
 883 uschar *lookup_dnssec_authenticated = NULL;
 884 int     lookup_open_max        = 25;
 885 uschar *lookup_value           = NULL;
 886
 887 macro_item  *macros            = NULL;
 888 uschar *mailstore_basename     = NULL;
 889 #ifdef WITH_CONTENT_SCAN
 890 uschar *malware_name           = NULL;  /* Virus Name */
 891 #endif
 892 int     max_received_linelength= 0;
 893 int     max_username_length    = 0;
 894 int     message_age            = 0;
 895 uschar *message_body           = NULL;
 896 uschar *message_body_end       = NULL;
 897 BOOL    message_body_newlines  = FALSE;
 898 int     message_body_size      = 0;
 899 int     message_body_visible   = 500;
 900 int     message_ended          = END_NOTSTARTED;
 901 uschar *message_headers        = NULL;
 902 uschar *message_id;
 903 uschar *message_id_domain      = NULL;
 904 uschar *message_id_text        = NULL;
 905 struct timeval message_id_tv   = { 0, 0 };
 906 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 907 uschar *message_id_external;
 908 int     message_linecount      = 0;
 909 BOOL    message_logs           = TRUE;
 910 int     message_size           = 0;
 911 uschar *message_size_limit     = US"50M";
 912 uschar  message_subdir[2]      = { 0, 0 };
 913 uschar *message_reference      = NULL;
 914
 915 /* MIME ACL expandables */
 916 #ifdef WITH_CONTENT_SCAN
 917 int     mime_anomaly_level     = 0;
 918 const uschar *mime_anomaly_text      = NULL;
 919 uschar *mime_boundary          = NULL;
 920 uschar *mime_charset           = NULL;
 921 uschar *mime_content_description = NULL;
 922 uschar *mime_content_disposition = NULL;
 923 uschar *mime_content_id        = NULL;
 924 unsigned int mime_content_size = 0;
 925 uschar *mime_content_transfer_encoding = NULL;
 926 uschar *mime_content_type      = NULL;
 927 uschar *mime_decoded_filename  = NULL;
 928 uschar *mime_filename          = NULL;
 929 int     mime_is_multipart      = 0;
 930 int     mime_is_coverletter    = 0;
 931 int     mime_is_rfc822         = 0;
 932 int     mime_part_count        = -1;
 933 #endif
 934
 935 BOOL    mua_wrapper            = FALSE;
 936
 937 uid_t  *never_users            = NULL;
 938 #ifdef WITH_CONTENT_SCAN
 939 BOOL    no_mbox_unspool        = FALSE;
 940 #endif
 941 BOOL    no_multiline_responses = FALSE;
 942
 943 uid_t   original_euid;
 944 gid_t   originator_gid;
 945 uschar *originator_login       = NULL;
 946 uschar *originator_name        = NULL;
 947 uid_t   originator_uid;
 948 uschar *override_local_interfaces = NULL;
 949 uschar *override_pid_file_path = NULL;
 950
 951 BOOL    parse_allow_group      = FALSE;
 952 BOOL    parse_found_group      = FALSE;
 953 uschar *percent_hack_domains   = NULL;
 954 uschar *pid_file_path          = US PID_FILE_PATH
 955                            "\0<--------------Space to patch pid_file_path->";
 956 BOOL    pipelining_enable      = TRUE;
 957 uschar *pipelining_advertise_hosts = US"*";
 958 BOOL    preserve_message_logs  = FALSE;
 959 uschar *primary_hostname       = NULL;
 960 BOOL    print_topbitchars      = FALSE;
 961 uschar  process_info[PROCESS_INFO_SIZE];
 962 int     process_info_len       = 0;
 963 uschar *process_log_path       = NULL;
 964 BOOL    prod_requires_admin    = TRUE;
 965
 966 #ifdef EXPERIMENTAL_PROXY
 967 uschar *proxy_host_address     = US"";
 968 int     proxy_host_port        = 0;
 969 uschar *proxy_required_hosts   = US"";
 970 BOOL    proxy_session          = FALSE;
 971 BOOL    proxy_session_failed   = FALSE;
 972 uschar *proxy_target_address   = US"";
 973 int     proxy_target_port      = 0;
 974 #endif
 975
 976 uschar *prvscheck_address      = NULL;
 977 uschar *prvscheck_keynum       = NULL;
 978 uschar *prvscheck_result       = NULL;
 979
 980
 981 uschar *qualify_domain_recipient = NULL;
 982 uschar *qualify_domain_sender  = NULL;
 983 BOOL    queue_2stage           = FALSE;
 984 uschar *queue_domains          = NULL;
 985 int     queue_interval         = -1;
 986 BOOL    queue_list_requires_admin = TRUE;
 987 BOOL    queue_only             = FALSE;
 988 uschar *queue_only_file        = NULL;
 989 int     queue_only_load        = -1;
 990 BOOL    queue_only_load_latch  = TRUE;
 991 BOOL    queue_only_override    = TRUE;
 992 BOOL    queue_only_policy      = FALSE;
 993 BOOL    queue_run_first_delivery = FALSE;
 994 BOOL    queue_run_force        = FALSE;
 995 BOOL    queue_run_in_order     = FALSE;
 996 BOOL    queue_run_local        = FALSE;
 997 int     queue_run_max          = 5;
 998 pid_t   queue_run_pid          = (pid_t)0;
 999 int     queue_run_pipe         = -1;
1000 BOOL    queue_running          = FALSE;
1001 BOOL    queue_smtp             = FALSE;
1002 uschar *queue_smtp_domains     = NULL;
1003
1004 unsigned int random_seed       = 0;
1005 tree_node *ratelimiters_cmd    = NULL;
1006 tree_node *ratelimiters_conn   = NULL;
1007 tree_node *ratelimiters_mail   = NULL;
1008 uschar *raw_active_hostname    = NULL;
1009 uschar *raw_sender             = NULL;
1010 uschar **raw_recipients        = NULL;
1011 int     raw_recipients_count   = 0;
1012
1013 int     rcpt_count             = 0;
1014 int     rcpt_fail_count        = 0;
1015 int     rcpt_defer_count       = 0;
1016 gid_t   real_gid;
1017 uid_t   real_uid;
1018 BOOL    really_exim            = TRUE;
1019 BOOL    receive_call_bombout   = FALSE;
1020 int     receive_linecount      = 0;
1021 int     receive_messagecount   = 0;
1022 int     receive_timeout        = 0;
1023 int     received_count         = 0;
1024 uschar *received_for           = NULL;
1025
1026 /*  This is the default text for Received headers generated by Exim. The
1027 date  will be automatically added on the end. */
1028
1029 uschar *received_header_text   = US
1030      "Received: "
1031      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1032      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1033      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1034      "by $primary_hostname "
1035      "${if def:received_protocol {with $received_protocol}} "
1036      #ifdef SUPPORT_TLS
1037      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1038      #endif
1039      "(Exim $version_number)\n\t"
1040      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1041      "id $message_exim_id"
1042      "${if def:received_for {\n\tfor $received_for}}"
1043      "\0<---------------Space to patch received_header_text->";
1044
1045 int     received_headers_max   = 30;
1046 uschar *received_protocol      = NULL;
1047 int     received_time          = 0;
1048 uschar *recipient_data         = NULL;
1049 uschar *recipient_unqualified_hosts = NULL;
1050 uschar *recipient_verify_failure = NULL;
1051 int     recipients_count       = 0;
1052 BOOL    recipients_discarded   = FALSE;
1053 recipient_item  *recipients_list = NULL;
1054 int     recipients_list_max    = 0;
1055 int     recipients_max         = 0;
1056 BOOL    recipients_max_reject  = FALSE;
1057 const pcre *regex_AUTH         = NULL;
1058 const pcre *regex_check_dns_names = NULL;
1059 const pcre *regex_From         = NULL;
1060 const pcre *regex_IGNOREQUOTA  = NULL;
1061 const pcre *regex_PIPELINING   = NULL;
1062 const pcre *regex_SIZE         = NULL;
1063 const pcre *regex_smtp_code    = NULL;
1064 const pcre *regex_ismsgid      = NULL;
1065 #ifdef WHITELIST_D_MACROS
1066 const pcre *regex_whitelisted_macro = NULL;
1067 #endif
1068 #ifdef WITH_CONTENT_SCAN
1069 uschar *regex_match_string     = NULL;
1070 #endif
1071 int     remote_delivery_count  = 0;
1072 int     remote_max_parallel    = 2;
1073 uschar *remote_sort_domains    = NULL;
1074 int     retry_data_expire      = 7*24*60*60;
1075 int     retry_interval_max     = 24*60*60;
1076 int     retry_maximum_timeout  = 0;        /* set from retry config */
1077 retry_config  *retries         = NULL;
1078 uschar *return_path            = NULL;
1079 BOOL    return_path_remove     = TRUE;
1080 int     rewrite_existflags     = 0;
1081 uschar *rfc1413_hosts          = US"*";
1082 int     rfc1413_query_timeout  = 5;
1083 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1084 uid_t   root_gid               = ROOT_GID;
1085 uid_t   root_uid               = ROOT_UID;
1086
1087 router_instance  *routers  = NULL;
1088 router_instance  router_defaults = {
1089     NULL,                      /* chain pointer */
1090     NULL,                      /* name */
1091     NULL,                      /* info */
1092     NULL,                      /* private options block pointer */
1093     NULL,                      /* driver name */
1094
1095     NULL,                      /* address_data */
1096 #ifdef EXPERIMENTAL_BRIGHTMAIL
1097     NULL,                      /* bmi_rule */
1098 #endif
1099     NULL,                      /* cannot_route_message */
1100     NULL,                      /* condition */
1101     NULL,                      /* current_directory */
1102     NULL,                      /* debug_string */
1103     NULL,                      /* domains */
1104     NULL,                      /* errors_to */
1105     NULL,                      /* expand_gid */
1106     NULL,                      /* expand_uid */
1107     NULL,                      /* expand_more */
1108     NULL,                      /* expand_unseen */
1109     NULL,                      /* extra_headers */
1110     NULL,                      /* fallback_hosts */
1111     NULL,                      /* home_directory */
1112     NULL,                      /* ignore_target_hosts */
1113     NULL,                      /* local_parts */
1114     NULL,                      /* pass_router_name */
1115     NULL,                      /* prefix */
1116     NULL,                      /* redirect_router_name */
1117     NULL,                      /* remove_headers */
1118     NULL,                      /* require_files */
1119     NULL,                      /* router_home_directory */
1120     US"freeze",                /* self */
1121     NULL,                      /* senders */
1122     NULL,                      /* suffix */
1123     NULL,                      /* translate_ip_address */
1124     NULL,                      /* transport_name */
1125
1126     TRUE,                      /* address_test */
1127 #ifdef EXPERIMENTAL_BRIGHTMAIL
1128     FALSE,                     /* bmi_deliver_alternate */
1129     FALSE,                     /* bmi_deliver_default */
1130     FALSE,                     /* bmi_dont_deliver */
1131 #endif
1132     TRUE,                      /* expn */
1133     FALSE,                     /* caseful_local_part */
1134     FALSE,                     /* check_local_user */
1135     FALSE,                     /* disable_logging */
1136     FALSE,                     /* fail_verify_recipient */
1137     FALSE,                     /* fail_verify_sender */
1138     FALSE,                     /* gid_set */
1139     FALSE,                     /* initgroups */
1140     TRUE_UNSET,                /* log_as_local */
1141     TRUE,                      /* more */
1142     FALSE,                     /* pass_on_timeout */
1143     FALSE,                     /* prefix_optional */
1144     TRUE,                      /* repeat_use */
1145     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1146     FALSE,                     /* same_domain_copy_routing */
1147     FALSE,                     /* self_rewrite */
1148     FALSE,                     /* suffix_optional */
1149     FALSE,                     /* verify_only */
1150     TRUE,                      /* verify_recipient */
1151     TRUE,                      /* verify_sender */
1152     FALSE,                     /* uid_set */
1153     FALSE,                     /* unseen */
1154 #ifdef EXPERIMENTAL_DSN
1155     FALSE,                     /* dsn_lasthop */
1156 #endif
1157
1158     self_freeze,               /* self_code */
1159     (uid_t)(-1),               /* uid */
1160     (gid_t)(-1),               /* gid */
1161
1162     NULL,                      /* fallback_hostlist */
1163     NULL,                      /* transport instance */
1164     NULL,                      /* pass_router */
1165     NULL                       /* redirect_router */
1166 };
1167
1168 uschar *router_name            = NULL;
1169
1170 ip_address_item *running_interfaces = NULL;
1171 BOOL    running_in_test_harness = FALSE;
1172
1173 /* This is a weird one. The following string gets patched in the binary by the
1174 script that sets up a copy of Exim for running in the test harness. It seems
1175 that compilers are now clever, and share constant strings if they can.
1176 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1177 make use of the end of this string in order to save space. So the patching then
1178 wrecks this. We defeat this optimization by adding some additional characters
1179 onto the end of the string. */
1180
1181 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1182
1183 int     runrc                  = 0;
1184
1185 uschar *search_error_message   = NULL;
1186 BOOL    search_find_defer      = FALSE;
1187 uschar *self_hostname          = NULL;
1188 uschar *sender_address         = NULL;
1189 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1190 uschar *sender_address_data    = NULL;
1191 BOOL    sender_address_forced  = FALSE;
1192 uschar *sender_address_unrewritten = NULL;
1193 uschar *sender_data            = NULL;
1194 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1195 uschar *sender_fullhost        = NULL;
1196 uschar *sender_helo_name       = NULL;
1197 uschar **sender_host_aliases   = &no_aliases;
1198 uschar *sender_host_address    = NULL;
1199 uschar *sender_host_authenticated = NULL;
1200 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1201 BOOL    sender_host_dnssec     = FALSE;
1202 uschar *sender_host_name       = NULL;
1203 int     sender_host_port       = 0;
1204 BOOL    sender_host_notsocket  = FALSE;
1205 BOOL    sender_host_unknown    = FALSE;
1206 uschar *sender_ident           = NULL;
1207 BOOL    sender_local           = FALSE;
1208 BOOL    sender_name_forced     = FALSE;
1209 uschar *sender_rate            = NULL;
1210 uschar *sender_rate_limit      = NULL;
1211 uschar *sender_rate_period     = NULL;
1212 uschar *sender_rcvhost         = NULL;
1213 BOOL    sender_set_untrusted   = FALSE;
1214 uschar *sender_unqualified_hosts = NULL;
1215 uschar *sender_verify_failure = NULL;
1216 address_item *sender_verified_list  = NULL;
1217 address_item *sender_verified_failed = NULL;
1218 int     sender_verified_rc     = -1;
1219 BOOL    sender_verified_responded = FALSE;
1220 uschar *sending_ip_address     = NULL;
1221 int     sending_port           = -1;
1222 SIGNAL_BOOL sigalrm_seen       = FALSE;
1223 uschar **sighup_argv           = NULL;
1224 int     smtp_accept_count      = 0;
1225 BOOL    smtp_accept_keepalive  = TRUE;
1226 int     smtp_accept_max        = 20;
1227 int     smtp_accept_max_nonmail= 10;
1228 uschar *smtp_accept_max_nonmail_hosts = US"*";
1229 int     smtp_accept_max_per_connection = 1000;
1230 uschar *smtp_accept_max_per_host = NULL;
1231 int     smtp_accept_queue      = 0;
1232 int     smtp_accept_queue_per_connection = 10;
1233 int     smtp_accept_reserve    = 0;
1234 uschar *smtp_active_hostname   = NULL;
1235 BOOL    smtp_authenticated     = FALSE;
1236 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1237                              "Exim $version_number $tod_full"
1238                              "\0<---------------Space to patch smtp_banner->";
1239 BOOL    smtp_batched_input     = FALSE;
1240 BOOL    smtp_check_spool_space = TRUE;
1241 int     smtp_ch_index          = 0;
1242 uschar *smtp_cmd_argument      = NULL;
1243 uschar *smtp_cmd_buffer        = NULL;
1244 time_t  smtp_connection_start  = 0;
1245 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1246 int     smtp_connect_backlog   = 20;
1247 double  smtp_delay_mail        = 0.0;
1248 double  smtp_delay_rcpt        = 0.0;
1249 BOOL    smtp_enforce_sync      = TRUE;
1250 FILE   *smtp_in                = NULL;
1251 BOOL    smtp_input             = FALSE;
1252 int     smtp_load_reserve      = -1;
1253 int     smtp_mailcmd_count     = 0;
1254 FILE   *smtp_out               = NULL;
1255 uschar *smtp_etrn_command      = NULL;
1256 BOOL    smtp_etrn_serialize    = TRUE;
1257 int     smtp_max_synprot_errors= 3;
1258 int     smtp_max_unknown_commands = 3;
1259 uschar *smtp_notquit_reason    = NULL;
1260 uschar *smtp_ratelimit_hosts   = NULL;
1261 uschar *smtp_ratelimit_mail    = NULL;
1262 uschar *smtp_ratelimit_rcpt    = NULL;
1263 uschar *smtp_read_error        = US"";
1264 int     smtp_receive_timeout   = 5*60;
1265 uschar *smtp_reserve_hosts     = NULL;
1266 BOOL    smtp_return_error_details = FALSE;
1267 int     smtp_rlm_base          = 0;
1268 double  smtp_rlm_factor        = 0.0;
1269 int     smtp_rlm_limit         = 0;
1270 int     smtp_rlm_threshold     = INT_MAX;
1271 int     smtp_rlr_base          = 0;
1272 double  smtp_rlr_factor        = 0.0;
1273 int     smtp_rlr_limit         = 0;
1274 int     smtp_rlr_threshold     = INT_MAX;
1275 BOOL    smtp_use_pipelining    = FALSE;
1276 BOOL    smtp_use_size          = FALSE;
1277
1278 #ifdef WITH_CONTENT_SCAN
1279 uschar *spamd_address          = US"127.0.0.1 783";
1280 uschar *spam_bar               = NULL;
1281 uschar *spam_report            = NULL;
1282 uschar *spam_score             = NULL;
1283 uschar *spam_score_int         = NULL;
1284 #endif
1285 #ifdef EXPERIMENTAL_SPF
1286 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1287 uschar *spf_header_comment     = NULL;
1288 uschar *spf_received           = NULL;
1289 uschar *spf_result             = NULL;
1290 uschar *spf_smtp_comment       = NULL;
1291 #endif
1292
1293 BOOL    split_spool_directory  = FALSE;
1294 uschar *spool_directory        = US SPOOL_DIRECTORY
1295                            "\0<--------------Space to patch spool_directory->";
1296 #ifdef EXPERIMENTAL_SRS
1297 uschar *srs_config             = NULL;
1298 uschar *srs_db_address         = NULL;
1299 uschar *srs_db_key             = NULL;
1300 int     srs_hashlength         = 6;
1301 int     srs_hashmin            = -1;
1302 int     srs_maxage             = 31;
1303 uschar *srs_orig_recipient     = NULL;
1304 uschar *srs_orig_sender        = NULL;
1305 uschar *srs_recipient          = NULL;
1306 uschar *srs_secrets            = NULL;
1307 uschar *srs_status             = NULL;
1308 BOOL    srs_usehash            = TRUE;
1309 BOOL    srs_usetimestamp       = TRUE;
1310 #endif
1311 BOOL    strict_acl_vars        = FALSE;
1312 int     string_datestamp_offset= -1;
1313 int     string_datestamp_length= 0;
1314 int     string_datestamp_type  = -1;
1315 BOOL    strip_excess_angle_brackets = FALSE;
1316 BOOL    strip_trailing_dot     = FALSE;
1317 uschar *submission_domain      = NULL;
1318 BOOL    submission_mode        = FALSE;
1319 uschar *submission_name        = NULL;
1320 BOOL    suppress_local_fixups  = FALSE;
1321 BOOL    suppress_local_fixups_default = FALSE;
1322 BOOL    synchronous_delivery   = FALSE;
1323 BOOL    syslog_duplication     = TRUE;
1324 int     syslog_facility        = LOG_MAIL;
1325 uschar *syslog_processname     = US"exim";
1326 BOOL    syslog_timestamp       = TRUE;
1327 uschar *system_filter          = NULL;
1328
1329 uschar *system_filter_directory_transport = NULL;
1330 uschar *system_filter_file_transport = NULL;
1331 uschar *system_filter_pipe_transport = NULL;
1332 uschar *system_filter_reply_transport = NULL;
1333
1334 gid_t   system_filter_gid      = 0;
1335 BOOL    system_filter_gid_set  = FALSE;
1336 uid_t   system_filter_uid      = (uid_t)-1;
1337 BOOL    system_filter_uid_set  = FALSE;
1338 BOOL    system_filtering       = FALSE;
1339
1340 BOOL    tcp_nodelay            = TRUE;
1341 #ifdef USE_TCP_WRAPPERS
1342 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1343 #endif
1344 int     test_harness_load_avg  = 0;
1345 int     thismessage_size_limit = 0;
1346 int     timeout_frozen_after   = 0;
1347 BOOL    timestamps_utc         = FALSE;
1348
1349 transport_instance  *transports = NULL;
1350
1351 transport_instance  transport_defaults = {
1352     NULL,                     /* chain pointer */
1353     NULL,                     /* name */
1354     NULL,                     /* info */
1355     NULL,                     /* private options block pointer */
1356     NULL,                     /* driver name */
1357     NULL,                     /* setup entry point */
1358     1,                        /* batch_max */
1359     NULL,                     /* batch_id */
1360     NULL,                     /* home_dir */
1361     NULL,                     /* current_dir */
1362     TRUE,                     /* multi-domain */
1363     FALSE,                    /* overrides_hosts */
1364     100,                      /* max_addresses */
1365     500,                      /* connection_max_messages */
1366     FALSE,                    /* deliver_as_creator */
1367     FALSE,                    /* disable_logging */
1368     FALSE,                    /* initgroups */
1369     FALSE,                    /* uid_set */
1370     FALSE,                    /* gid_set */
1371     (uid_t)(-1),              /* uid */
1372     (gid_t)(-1),              /* gid */
1373     NULL,                     /* expand_uid */
1374     NULL,                     /* expand_gid */
1375     NULL,                     /* warn_message */
1376     NULL,                     /* shadow */
1377     NULL,                     /* shadow_condition */
1378     NULL,                     /* filter_command */
1379     NULL,                     /* add_headers */
1380     NULL,                     /* remove_headers */
1381     NULL,                     /* return_path */
1382     NULL,                     /* debug_string */
1383     NULL,                     /* message_size_limit */
1384     NULL,                     /* headers_rewrite */
1385     NULL,                     /* rewrite_rules */
1386     0,                        /* rewrite_existflags */
1387     300,                      /* filter_timeout */
1388     FALSE,                    /* body_only */
1389     FALSE,                    /* delivery_date_add */
1390     FALSE,                    /* envelope_to_add */
1391     FALSE,                    /* headers_only */
1392     FALSE,                    /* rcpt_include_affixes */
1393     FALSE,                    /* return_path_add */
1394     FALSE,                    /* return_output */
1395     FALSE,                    /* return_fail_output */
1396     FALSE,                    /* log_output */
1397     FALSE,                    /* log_fail_output */
1398     FALSE,                    /* log_defer_output */
1399     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1400                                  1 nor 0 so can detect unset */
1401 #ifdef EXPERIMENTAL_EVENT
1402    ,NULL                      /* event_action */
1403 #endif
1404 };
1405
1406 int     transport_count;
1407 uschar *transport_name          = NULL;
1408 int     transport_newlines;
1409 uschar **transport_filter_argv  = NULL;
1410 int     transport_filter_timeout;
1411 BOOL    transport_filter_timed_out = FALSE;
1412 int     transport_write_timeout= 0;
1413
1414 tree_node  *tree_dns_fails     = NULL;
1415 tree_node  *tree_duplicates    = NULL;
1416 tree_node  *tree_nonrecipients = NULL;
1417 tree_node  *tree_unusable      = NULL;
1418
1419 BOOL    trusted_caller         = FALSE;
1420 BOOL    trusted_config         = TRUE;
1421 gid_t  *trusted_groups         = NULL;
1422 uid_t  *trusted_users          = NULL;
1423 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1424
1425 uschar *unknown_login          = NULL;
1426 uschar *unknown_username       = NULL;
1427 uschar *untrusted_set_sender   = NULL;
1428
1429 /*  A regex for matching a "From_" line in an incoming message, in the form
1430
1431     From ph10 Fri Jan  5 12:35 GMT 1996
1432
1433 which  the "mail" commands send to the MTA (undocumented, of course), or in
1434 the  form
1435
1436     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1437
1438 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1439 Because  of variations in time formats, just match up to the minutes. That
1440 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1441 so  just require one digit for hours and minutes. The weekday is also absent
1442 in  some forms. */
1443
1444 uschar *uucp_from_pattern      = US
1445    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1446    "(?:"                                          /* Non-extracting bracket */
1447    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1448    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1449    ")"                                            /* End alternation */
1450    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1451
1452 uschar *uucp_from_sender       = US"$1";
1453
1454 uschar *verify_mode            = NULL;
1455 uschar *version_copyright      =
1456  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1457    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1458 uschar *version_date           = US"?";
1459 uschar *version_cnumber        = US"????";
1460 uschar *version_string         = US"?";
1461
1462 uschar *warn_message_file      = NULL;
1463 int     warning_count          = 0;
1464 uschar *warnmsg_delay          = NULL;
1465 uschar *warnmsg_recipients     = NULL;
1466 BOOL    write_rejectlog        = TRUE;
1467
1468
1469 /*  End of globals.c */