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