src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   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 uschar *dsn_envid              = NULL;
 138 int     dsn_ret                = 0;
 139 const pcre  *regex_DSN         = NULL;
 140 BOOL    smtp_use_dsn           = FALSE;
 141 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *gnutls_require_mac     = NULL;
 147 uschar *gnutls_require_kx      = NULL;
 148 uschar *gnutls_require_proto   = NULL;
 149 uschar *openssl_options        = NULL;
 150 const pcre *regex_STARTTLS     = NULL;
 151 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 152 uschar *tls_certificate        = NULL;
 153 uschar *tls_crl                = NULL;
 154 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 155 that's the interop problem which has been observed: GnuTLS suggesting a higher
 156 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 157 int     tls_dh_max_bits        = 2236;
 158 uschar *tls_dhparam            = NULL;
 159 uschar *tls_eccurve            = US"prime256v1";
 160 #ifndef DISABLE_OCSP
 161 uschar *tls_ocsp_file          = NULL;
 162 #endif
 163 BOOL    tls_offered            = FALSE;
 164 uschar *tls_privatekey         = NULL;
 165 BOOL    tls_remember_esmtp     = FALSE;
 166 uschar *tls_require_ciphers    = NULL;
 167 uschar *tls_try_verify_hosts   = NULL;
 168 uschar *tls_verify_certificates= US"system";
 169 uschar *tls_verify_hosts       = NULL;
 170 #endif
 171
 172 #ifndef DISABLE_PRDR
 173 /* Per Recipient Data Response variables */
 174 BOOL    prdr_enable            = FALSE;
 175 BOOL    prdr_requested         = FALSE;
 176 const pcre *regex_PRDR         = NULL;
 177 #endif
 178
 179 #ifdef EXPERIMENTAL_INTERNATIONAL
 180 const pcre *regex_UTF8         = NULL;
 181 #endif
 182
 183 /* Input-reading functions for messages, so we can use special ones for
 184 incoming TCP/IP. The defaults use stdin. We never need these for any
 185 stand-alone tests. */
 186
 187 #ifndef STAND_ALONE
 188 int (*receive_getc)(void)      = stdin_getc;
 189 int (*receive_ungetc)(int)     = stdin_ungetc;
 190 int (*receive_feof)(void)      = stdin_feof;
 191 int (*receive_ferror)(void)    = stdin_ferror;
 192 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 193 #endif
 194
 195
 196 /* List of per-address expansion variables for clearing and saving/restoring
 197 when verifying one address while routing/verifying another. We have to have
 198 the size explicit, because it is referenced from more than one module. */
 199
 200 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 201   CUSS &deliver_address_data,
 202   CUSS &deliver_domain,
 203   CUSS &deliver_domain_data,
 204   CUSS &deliver_domain_orig,
 205   CUSS &deliver_domain_parent,
 206   CUSS &deliver_localpart,
 207   CUSS &deliver_localpart_data,
 208   CUSS &deliver_localpart_orig,
 209   CUSS &deliver_localpart_parent,
 210   CUSS &deliver_localpart_prefix,
 211   CUSS &deliver_localpart_suffix,
 212   CUSS (uschar **)(&deliver_recipients),
 213   CUSS &deliver_host,
 214   CUSS &deliver_home,
 215   CUSS &address_file,
 216   CUSS &address_pipe,
 217   CUSS &self_hostname,
 218   NULL };
 219
 220 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 221
 222 /* General global variables */
 223
 224 header_line *acl_added_headers = NULL;
 225 tree_node *acl_anchor          = NULL;
 226 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 227                                   NULL, NULL, NULL, NULL};
 228 int     acl_narg               = 0;
 229
 230 uschar *acl_not_smtp           = NULL;
 231 #ifdef WITH_CONTENT_SCAN
 232 uschar *acl_not_smtp_mime      = NULL;
 233 #endif
 234 uschar *acl_not_smtp_start     = NULL;
 235 uschar *acl_removed_headers    = NULL;
 236 uschar *acl_smtp_auth          = NULL;
 237 uschar *acl_smtp_connect       = NULL;
 238 uschar *acl_smtp_data          = NULL;
 239 #ifndef DISABLE_PRDR
 240 uschar *acl_smtp_data_prdr     = US"accept";
 241 #endif
 242 #ifndef DISABLE_DKIM
 243 uschar *acl_smtp_dkim          = NULL;
 244 #endif
 245 uschar *acl_smtp_etrn          = NULL;
 246 uschar *acl_smtp_expn          = NULL;
 247 uschar *acl_smtp_helo          = NULL;
 248 uschar *acl_smtp_mail          = NULL;
 249 uschar *acl_smtp_mailauth      = NULL;
 250 #ifdef WITH_CONTENT_SCAN
 251 uschar *acl_smtp_mime          = NULL;
 252 #endif
 253 uschar *acl_smtp_notquit       = NULL;
 254 uschar *acl_smtp_predata       = NULL;
 255 uschar *acl_smtp_quit          = NULL;
 256 uschar *acl_smtp_rcpt          = NULL;
 257 uschar *acl_smtp_starttls      = NULL;
 258 uschar *acl_smtp_vrfy          = NULL;
 259
 260 BOOL    acl_temp_details       = FALSE;
 261 tree_node *acl_var_c           = NULL;
 262 tree_node *acl_var_m           = NULL;
 263 uschar *acl_verify_message     = NULL;
 264 string_item *acl_warn_logged   = NULL;
 265
 266 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 267 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 268
 269 uschar *acl_wherenames[]       = { US"RCPT",
 270                                    US"MAIL",
 271                                    US"PREDATA",
 272                                    US"MIME",
 273                                    US"DKIM",
 274                                    US"DATA",
 275 #ifndef DISABLE_PRDR
 276                                    US"PRDR",
 277 #endif
 278                                    US"non-SMTP",
 279                                    US"AUTH",
 280                                    US"connection",
 281                                    US"ETRN",
 282                                    US"EXPN",
 283                                    US"EHLO or HELO",
 284                                    US"MAILAUTH",
 285                                    US"non-SMTP-start",
 286                                    US"NOTQUIT",
 287                                    US"QUIT",
 288                                    US"STARTTLS",
 289                                    US"VRFY",
 290                                    US"delivery",
 291                                    US"unknown"
 292                                  };
 293
 294 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 295                                    US"550",     /* MAIL */
 296                                    US"550",     /* PREDATA */
 297                                    US"550",     /* MIME */
 298                                    US"550",     /* DKIM */
 299                                    US"550",     /* DATA */
 300 #ifndef DISABLE_PRDR
 301                                    US"550",    /* RCPT PRDR */
 302 #endif
 303                                    US"0",       /* not SMTP; not relevant */
 304                                    US"503",     /* AUTH */
 305                                    US"550",     /* connect */
 306                                    US"458",     /* ETRN */
 307                                    US"550",     /* EXPN */
 308                                    US"550",     /* HELO/EHLO */
 309                                    US"0",       /* MAILAUTH; not relevant */
 310                                    US"0",       /* not SMTP; not relevant */
 311                                    US"0",       /* NOTQUIT; not relevant */
 312                                    US"0",       /* QUIT; not relevant */
 313                                    US"550",     /* STARTTLS */
 314                                    US"252",     /* VRFY */
 315                                    US"0",       /* delivery; not relevant */
 316                                    US"0"        /* unknown; not relevant */
 317                                  };
 318
 319 BOOL    active_local_from_check = FALSE;
 320 BOOL    active_local_sender_retain = FALSE;
 321 int     body_8bitmime = 0;
 322 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 323 address_item  *addr_duplicate  = NULL;
 324
 325 address_item address_defaults = {
 326   NULL,                 /* next */
 327   NULL,                 /* parent */
 328   NULL,                 /* first */
 329   NULL,                 /* dupof */
 330   NULL,                 /* start_router */
 331   NULL,                 /* router */
 332   NULL,                 /* transport */
 333   NULL,                 /* host_list */
 334   NULL,                 /* host_used */
 335   NULL,                 /* fallback_hosts */
 336   NULL,                 /* reply */
 337   NULL,                 /* retries */
 338   NULL,                 /* address */
 339   NULL,                 /* unique */
 340   NULL,                 /* cc_local_part */
 341   NULL,                 /* lc_local_part */
 342   NULL,                 /* local_part */
 343   NULL,                 /* prefix */
 344   NULL,                 /* suffix */
 345   NULL,                 /* domain */
 346   NULL,                 /* address_retry_key */
 347   NULL,                 /* domain_retry_key */
 348   NULL,                 /* current_dir */
 349   NULL,                 /* home_dir */
 350   NULL,                 /* message */
 351   NULL,                 /* user_message */
 352   NULL,                 /* onetime_parent */
 353   NULL,                 /* pipe_expandn */
 354   NULL,                 /* return_filename */
 355   NULL,                 /* self_hostname */
 356   NULL,                 /* shadow_message */
 357   #ifdef SUPPORT_TLS
 358   NULL,                 /* cipher */
 359   NULL,                 /* ourcert */
 360   NULL,                 /* peercert */
 361   NULL,                 /* peerdn */
 362   OCSP_NOT_REQ,         /* ocsp */
 363   #endif
 364   NULL,                 /* authenticator */
 365   NULL,                 /* auth_id */
 366   NULL,                 /* auth_sndr */
 367   NULL,                 /* dsn_orcpt */
 368   0,                    /* dsn_flags */
 369   0,                    /* dsn_aware */
 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 #ifdef EXPERIMENTAL_INTERNATIONAL
 393     FALSE,              /* utf8 */
 394 #endif
 395   }
 396 };
 397
 398 uschar *address_file           = NULL;
 399 uschar *address_pipe           = NULL;
 400 BOOL    address_test_mode      = FALSE;
 401 tree_node *addresslist_anchor  = NULL;
 402 int     addresslist_count      = 0;
 403 gid_t  *admin_groups           = NULL;
 404 BOOL    admin_user             = FALSE;
 405 BOOL    allow_auth_unadvertised= FALSE;
 406 BOOL    allow_domain_literals  = FALSE;
 407 BOOL    allow_mx_to_ip         = FALSE;
 408 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 409 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 410 BOOL    allow_utf8_domains     = FALSE;
 411 uschar *authenticated_fail_id  = NULL;
 412 uschar *authenticated_id       = NULL;
 413 uschar *authenticated_sender   = NULL;
 414 BOOL    authentication_failed  = FALSE;
 415 auth_instance  *auths          = NULL;
 416 uschar *auth_advertise_hosts   = US"*";
 417 auth_instance auth_defaults    = {
 418     NULL,                      /* chain pointer */
 419     NULL,                      /* name */
 420     NULL,                      /* info */
 421     NULL,                      /* private options block pointer */
 422     NULL,                      /* driver_name */
 423     NULL,                      /* advertise_condition */
 424     NULL,                      /* client_condition */
 425     NULL,                      /* public_name */
 426     NULL,                      /* set_id */
 427     NULL,                      /* set_client_id */
 428     NULL,                      /* server_mail_auth_condition */
 429     NULL,                      /* server_debug_string */
 430     NULL,                      /* server_condition */
 431     FALSE,                     /* client */
 432     FALSE,                     /* server */
 433     FALSE                      /* advertised */
 434 };
 435
 436 uschar *auth_defer_msg         = US"reason not recorded";
 437 uschar *auth_defer_user_msg    = US"";
 438 uschar *auth_vars[AUTH_VARS];
 439 int     auto_thaw              = 0;
 440 #ifdef WITH_CONTENT_SCAN
 441 BOOL    av_failed              = FALSE;
 442 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 443 #endif
 444
 445 BOOL    background_daemon      = TRUE;
 446
 447 #if BASE_62 == 62
 448 uschar *base62_chars=
 449     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 450 #else
 451 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 452 #endif
 453
 454 uschar *bi_command             = NULL;
 455 uschar *big_buffer             = NULL;
 456 int     big_buffer_size        = BIG_BUFFER_SIZE;
 457 #ifdef EXPERIMENTAL_BRIGHTMAIL
 458 uschar *bmi_alt_location       = NULL;
 459 uschar *bmi_base64_tracker_verdict = NULL;
 460 uschar *bmi_base64_verdict     = NULL;
 461 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 462 int     bmi_deliver            = 1;
 463 int     bmi_run                = 0;
 464 uschar *bmi_verdicts           = NULL;
 465 #endif
 466 int     body_linecount         = 0;
 467 int     body_zerocount         = 0;
 468 uschar *bounce_message_file    = NULL;
 469 uschar *bounce_message_text    = NULL;
 470 uschar *bounce_recipient       = NULL;
 471 BOOL    bounce_return_body     = TRUE;
 472 BOOL    bounce_return_message  = TRUE;
 473 int     bounce_return_size_limit = 100*1024;
 474 uschar *bounce_sender_authentication = NULL;
 475 int     bsmtp_transaction_linecount = 0;
 476
 477 int     callout_cache_domain_positive_expire = 7*24*60*60;
 478 int     callout_cache_domain_negative_expire = 3*60*60;
 479 int     callout_cache_positive_expire = 24*60*60;
 480 int     callout_cache_negative_expire = 2*60*60;
 481 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 482 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 483 int     check_log_inodes       = 0;
 484 int     check_log_space        = 0;
 485 BOOL    check_rfc2047_length   = TRUE;
 486 int     check_spool_inodes     = 0;
 487 int     check_spool_space      = 0;
 488 uschar  *client_authenticator  = NULL;
 489 uschar  *client_authenticated_id = NULL;
 490 uschar  *client_authenticated_sender = NULL;
 491 int     clmacro_count          = 0;
 492 uschar *clmacros[MAX_CLMACROS];
 493 BOOL    config_changed         = FALSE;
 494 FILE   *config_file            = NULL;
 495 uschar *config_filename        = NULL;
 496 int     config_lineno          = 0;
 497 #ifdef CONFIGURE_GROUP
 498 gid_t   config_gid             = CONFIGURE_GROUP;
 499 #endif
 500 uschar *config_main_filelist   = US CONFIGURE_FILE
 501                          "\0<-----------Space to patch configure_filename->";
 502 uschar *config_main_filename   = NULL;
 503 uschar *config_main_directory  = NULL;
 504
 505 #ifdef CONFIGURE_OWNER
 506 uid_t   config_uid             = CONFIGURE_OWNER;
 507 #endif
 508
 509 int     connection_max_messages= -1;
 510 uschar *continue_hostname      = NULL;
 511 uschar *continue_host_address  = NULL;
 512 BOOL    continue_more          = FALSE;
 513 int     continue_sequence      = 1;
 514 uschar *continue_transport     = NULL;
 515
 516 uschar *csa_status             = NULL;
 517 cut_t   cutthrough = {
 518   FALSE,                                /* delivery: when to attempt */
 519   -1,                                   /* fd: open connection */
 520   0,                                    /* nrcpt: number of addresses */
 521 };
 522
 523 BOOL    daemon_listen          = FALSE;
 524 uschar *daemon_smtp_port       = US"smtp";
 525 int     daemon_startup_retries = 9;
 526 int     daemon_startup_sleep   = 30;
 527
 528 #ifdef EXPERIMENTAL_DCC
 529 BOOL    dcc_direct_add_header  = FALSE;
 530 uschar *dcc_header             = NULL;
 531 uschar *dcc_result             = NULL;
 532 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 533 uschar *dccifd_options         = US"header";
 534 #endif
 535
 536 BOOL    debug_daemon           = FALSE;
 537 int     debug_fd               = -1;
 538 FILE   *debug_file             = NULL;
 539 bit_table debug_options[]      = {
 540   { US"acl",            D_acl },
 541   { US"all",            D_all },
 542   { US"auth",           D_auth },
 543   { US"deliver",        D_deliver },
 544   { US"dns",            D_dns },
 545   { US"dnsbl",          D_dnsbl },
 546   { US"exec",           D_exec },
 547   { US"expand",         D_expand },
 548   { US"filter",         D_filter },
 549   { US"hints_lookup",   D_hints_lookup },
 550   { US"host_lookup",    D_host_lookup },
 551   { US"ident",          D_ident },
 552   { US"interface",      D_interface },
 553   { US"lists",          D_lists },
 554   { US"load",           D_load },
 555   { US"local_scan",     D_local_scan },
 556   { US"lookup",         D_lookup },
 557   { US"memory",         D_memory },
 558   { US"pid",            D_pid },
 559   { US"process_info",   D_process_info },
 560   { US"queue_run",      D_queue_run },
 561   { US"receive",        D_receive },
 562   { US"resolver",       D_resolver },
 563   { US"retry",          D_retry },
 564   { US"rewrite",        D_rewrite },
 565   { US"route",          D_route },
 566   { US"timestamp",      D_timestamp },
 567   { US"tls",            D_tls },
 568   { US"transport",      D_transport },
 569   { US"uid",            D_uid },
 570   { US"verify",         D_verify }
 571 };
 572 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 573 unsigned int debug_selector    = 0;
 574 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 575 uschar *delay_warning_condition=
 576   US"${if or {"
 577             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 578             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 579             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 580             "} {no}{yes}}";
 581 BOOL    delivery_date_remove   = TRUE;
 582 uschar *deliver_address_data   = NULL;
 583 int     deliver_datafile       = -1;
 584 const uschar *deliver_domain   = NULL;
 585 uschar *deliver_domain_data    = NULL;
 586 const uschar *deliver_domain_orig = NULL;
 587 const uschar *deliver_domain_parent = NULL;
 588 BOOL    deliver_drop_privilege = FALSE;
 589 BOOL    deliver_firsttime      = FALSE;
 590 BOOL    deliver_force          = FALSE;
 591 BOOL    deliver_freeze         = FALSE;
 592 time_t  deliver_frozen_at      = 0;
 593 uschar *deliver_home           = NULL;
 594 const uschar *deliver_host     = NULL;
 595 const uschar *deliver_host_address = NULL;
 596 int     deliver_host_port      = 0;
 597 uschar *deliver_in_buffer      = NULL;
 598 ino_t   deliver_inode          = 0;
 599 uschar *deliver_localpart      = NULL;
 600 uschar *deliver_localpart_data = NULL;
 601 uschar *deliver_localpart_orig = NULL;
 602 uschar *deliver_localpart_parent = NULL;
 603 uschar *deliver_localpart_prefix = NULL;
 604 uschar *deliver_localpart_suffix = NULL;
 605 BOOL    deliver_force_thaw     = FALSE;
 606 BOOL    deliver_manual_thaw    = FALSE;
 607 uschar *deliver_out_buffer     = NULL;
 608 int     deliver_queue_load_max = -1;
 609 address_item  *deliver_recipients = NULL;
 610 uschar *deliver_selectstring   = NULL;
 611 BOOL    deliver_selectstring_regex = FALSE;
 612 uschar *deliver_selectstring_sender = NULL;
 613 BOOL    deliver_selectstring_sender_regex = FALSE;
 614 #ifdef WITH_OLD_DEMIME
 615 int     demime_errorlevel      = 0;
 616 int     demime_ok              = 0;
 617 uschar *demime_reason          = NULL;
 618 #endif
 619 BOOL    disable_callout_flush  = FALSE;
 620 BOOL    disable_delay_flush    = FALSE;
 621 #ifdef ENABLE_DISABLE_FSYNC
 622 BOOL    disable_fsync          = FALSE;
 623 #endif
 624 BOOL    disable_ipv6           = FALSE;
 625 BOOL    disable_logging        = FALSE;
 626
 627 #ifndef DISABLE_DKIM
 628 uschar *dkim_cur_signer          = NULL;
 629 uschar *dkim_signers             = NULL;
 630 uschar *dkim_signing_domain      = NULL;
 631 uschar *dkim_signing_selector    = NULL;
 632 uschar *dkim_verify_signers      = US"$dkim_signers";
 633 BOOL    dkim_collect_input       = FALSE;
 634 BOOL    dkim_disable_verify      = FALSE;
 635 #endif
 636 #ifdef EXPERIMENTAL_DMARC
 637 BOOL    dmarc_has_been_checked  = FALSE;
 638 uschar *dmarc_ar_header         = NULL;
 639 uschar *dmarc_domain_policy     = NULL;
 640 uschar *dmarc_forensic_sender   = NULL;
 641 uschar *dmarc_history_file      = NULL;
 642 uschar *dmarc_status            = NULL;
 643 uschar *dmarc_status_text       = NULL;
 644 uschar *dmarc_tld_file          = NULL;
 645 uschar *dmarc_used_domain       = NULL;
 646 BOOL    dmarc_disable_verify    = FALSE;
 647 BOOL    dmarc_enable_forensic   = FALSE;
 648 #endif
 649
 650 uschar *dns_again_means_nonexist = NULL;
 651 int     dns_csa_search_limit   = 5;
 652 BOOL    dns_csa_use_reverse    = TRUE;
 653 #ifdef EXPERIMENTAL_DANE
 654 int     dns_dane_ok            = -1;
 655 #endif
 656 uschar *dns_ipv4_lookup        = NULL;
 657 int     dns_retrans            = 0;
 658 int     dns_retry              = 0;
 659 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 660 uschar *dns_trust_aa           = NULL;
 661 int     dns_use_edns0          = -1; /* <0 = not coerced */
 662 uschar *dnslist_domain         = NULL;
 663 uschar *dnslist_matched        = NULL;
 664 uschar *dnslist_text           = NULL;
 665 uschar *dnslist_value          = NULL;
 666 tree_node *domainlist_anchor   = NULL;
 667 int     domainlist_count       = 0;
 668 BOOL    dont_deliver           = FALSE;
 669 BOOL    dot_ends               = TRUE;
 670 BOOL    drop_cr                = FALSE;         /* No longer used */
 671 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 672
 673 BOOL    enable_dollar_recipients = FALSE;
 674 BOOL    envelope_to_remove     = TRUE;
 675 int     errno_quota            = ERRNO_QUOTA;
 676 uschar *errors_copy            = NULL;
 677 int     error_handling         = ERRORS_SENDER;
 678 uschar *errors_reply_to        = NULL;
 679 int     errors_sender_rc       = EXIT_FAILURE;
 680 #ifdef EXPERIMENTAL_EVENT
 681 uschar *event_action             = NULL;        /* expansion for delivery events */
 682 uschar *event_data               = NULL;        /* auxilary data variable for event */
 683 int     event_defer_errno        = 0;
 684 const uschar *event_name         = NULL;        /* event name variable */
 685 #endif
 686
 687
 688 gid_t   exim_gid               = EXIM_GID;
 689 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 690 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 691                         "\0<---------------Space to patch exim_path->";
 692 uid_t   exim_uid               = EXIM_UID;
 693 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 694 int     expand_forbid          = 0;
 695 int     expand_nlength[EXPAND_MAXN+1];
 696 int     expand_nmax            = -1;
 697 uschar *expand_nstring[EXPAND_MAXN+1];
 698 BOOL    expand_string_forcedfail = FALSE;
 699 uschar *expand_string_message;
 700 BOOL    extract_addresses_remove_arguments = TRUE;
 701 uschar *extra_local_interfaces = NULL;
 702
 703 int     fake_response          = OK;
 704 uschar *fake_response_text     = US"Your message has been rejected but is "
 705                                    "being kept for evaluation.\nIf it was a "
 706                                    "legitimate message, it may still be "
 707                                    "delivered to the target recipient(s).";
 708 int     filter_n[FILTER_VARIABLE_COUNT];
 709 BOOL    filter_running         = FALSE;
 710 int     filter_sn[FILTER_VARIABLE_COUNT];
 711 int     filter_test            = FTEST_NONE;
 712 uschar *filter_test_sfile      = NULL;
 713 uschar *filter_test_ufile      = NULL;
 714 uschar *filter_thisaddress     = NULL;
 715 int     finduser_retries       = 0;
 716 #ifdef WITH_OLD_DEMIME
 717 uschar *found_extension        = NULL;
 718 #endif
 719 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 720 uschar *freeze_tell            = NULL;
 721 uschar *freeze_tell_config     = NULL;
 722 uschar *fudged_queue_times     = US"";
 723
 724 uschar *gecos_name             = NULL;
 725 uschar *gecos_pattern          = NULL;
 726 rewrite_rule  *global_rewrite_rules = NULL;
 727
 728 uschar *headers_charset        = US HEADERS_CHARSET;
 729 int     header_insert_maxlen   = 64 * 1024;
 730 header_line  *header_last      = NULL;
 731 header_line  *header_list      = NULL;
 732 int     header_maxsize         = HEADER_MAXSIZE;
 733 int     header_line_maxsize    = 0;
 734
 735 header_name header_names[] = {
 736   { US"bcc",            3, TRUE,  htype_bcc },
 737   { US"cc",             2, TRUE,  htype_cc },
 738   { US"date",           4, TRUE,  htype_date },
 739   { US"delivery-date", 13, FALSE, htype_delivery_date },
 740   { US"envelope-to",   11, FALSE, htype_envelope_to },
 741   { US"from",           4, TRUE,  htype_from },
 742   { US"message-id",    10, TRUE,  htype_id },
 743   { US"received",       8, FALSE, htype_received },
 744   { US"reply-to",       8, FALSE, htype_reply_to },
 745   { US"return-path",   11, FALSE, htype_return_path },
 746   { US"sender",         6, TRUE,  htype_sender },
 747   { US"subject",        7, FALSE, htype_subject },
 748   { US"to",             2, TRUE,  htype_to }
 749 };
 750
 751 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 752
 753 BOOL    header_rewritten       = FALSE;
 754 uschar *helo_accept_junk_hosts = NULL;
 755 uschar *helo_allow_chars       = US"";
 756 uschar *helo_lookup_domains    = US"@ : @[]";
 757 uschar *helo_try_verify_hosts  = NULL;
 758 BOOL    helo_verified          = FALSE;
 759 BOOL    helo_verify_failed     = FALSE;
 760 uschar *helo_verify_hosts      = NULL;
 761 const uschar *hex_digits       = CUS"0123456789abcdef";
 762 uschar *hold_domains           = NULL;
 763 BOOL    host_checking          = FALSE;
 764 BOOL    host_checking_callout  = FALSE;
 765 uschar *host_data              = NULL;
 766 BOOL    host_find_failed_syntax= FALSE;
 767 uschar *host_lookup            = NULL;
 768 BOOL    host_lookup_deferred   = FALSE;
 769 BOOL    host_lookup_failed     = FALSE;
 770 uschar *host_lookup_order      = US"bydns:byaddr";
 771 uschar *host_lookup_msg        = US"";
 772 int     host_number            = 0;
 773 uschar *host_number_string     = NULL;
 774 uschar *host_reject_connection = NULL;
 775 tree_node *hostlist_anchor     = NULL;
 776 int     hostlist_count         = 0;
 777 uschar *hosts_treat_as_local   = NULL;
 778 uschar *hosts_connection_nolog = NULL;
 779
 780 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 781 BOOL    ignore_fromline_local  = FALSE;
 782 uschar *ignore_fromline_hosts  = NULL;
 783 BOOL    inetd_wait_mode        = FALSE;
 784 int     inetd_wait_timeout     = -1;
 785 uschar *interface_address      = NULL;
 786 int     interface_port         = -1;
 787 BOOL    is_inetd               = FALSE;
 788 uschar *iterate_item           = NULL;
 789
 790 int     journal_fd             = -1;
 791
 792 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 793
 794 uschar *eldap_dn               = NULL;
 795 int     load_average           = -2;
 796 BOOL    local_error_message    = FALSE;
 797 BOOL    local_from_check       = TRUE;
 798 uschar *local_from_prefix      = NULL;
 799 uschar *local_from_suffix      = NULL;
 800
 801 #if HAVE_IPV6
 802 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 803 #else
 804 uschar *local_interfaces       = US"0.0.0.0";
 805 #endif
 806
 807 uschar *local_scan_data        = NULL;
 808 int     local_scan_timeout     = 5*60;
 809 BOOL    local_sender_retain    = FALSE;
 810 gid_t   local_user_gid         = (gid_t)(-1);
 811 uid_t   local_user_uid         = (uid_t)(-1);
 812
 813 tree_node *localpartlist_anchor= NULL;
 814 int     localpartlist_count    = 0;
 815 uschar *log_buffer             = NULL;
 816 unsigned int log_extra_selector = LX_default;
 817 uschar *log_file_path          = US LOG_FILE_PATH
 818                            "\0<--------------Space to patch log_file_path->";
 819
 820 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 821 are the ones that get put into log_write_selector. They can be used in calls to
 822 log_write() to test for the bit. The options with LX_xxx identifiers have
 823 values greater than 0x80000000 and are put into log_extra_selector (without the
 824 top bit). They are never used in calls to log_write(), but are tested
 825 independently. This separation became necessary when the number of log
 826 selectors was getting close to filling a 32-bit word. */
 827
 828 /* Note that this list must be in alphabetical order. */
 829
 830 bit_table log_options[]        = {
 831   { US"8bitmime",                     LX_8bitmime },
 832   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 833   { US"address_rewrite",              L_address_rewrite },
 834   { US"all",                          L_all },
 835   { US"all_parents",                  L_all_parents },
 836   { US"arguments",                    LX_arguments },
 837   { US"connection_reject",            L_connection_reject },
 838   { US"delay_delivery",               L_delay_delivery },
 839   { US"deliver_time",                 LX_deliver_time },
 840   { US"delivery_size",                LX_delivery_size },
 841   { US"dnslist_defer",                L_dnslist_defer },
 842   { US"etrn",                         L_etrn },
 843   { US"host_lookup_failed",           L_host_lookup_failed },
 844   { US"ident_timeout",                LX_ident_timeout },
 845   { US"incoming_interface",           LX_incoming_interface },
 846   { US"incoming_port",                LX_incoming_port },
 847   { US"lost_incoming_connection",     L_lost_incoming_connection },
 848   { US"outgoing_port",                LX_outgoing_port },
 849   { US"pid",                          LX_pid },
 850 #ifdef EXPERIMENTAL_PROXY
 851   { US"proxy",                        LX_proxy },
 852 #endif
 853   { US"queue_run",                    L_queue_run },
 854   { US"queue_time",                   LX_queue_time },
 855   { US"queue_time_overall",           LX_queue_time_overall },
 856   { US"received_recipients",          LX_received_recipients },
 857   { US"received_sender",              LX_received_sender },
 858   { US"rejected_header",              LX_rejected_header },
 859   { US"rejected_headers",             LX_rejected_header },
 860   { US"retry_defer",                  L_retry_defer },
 861   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 862   { US"sender_on_delivery",           LX_sender_on_delivery },
 863   { US"sender_verify_fail",           LX_sender_verify_fail },
 864   { US"size_reject",                  L_size_reject },
 865   { US"skip_delivery",                L_skip_delivery },
 866   { US"smtp_confirmation",            LX_smtp_confirmation },
 867   { US"smtp_connection",              L_smtp_connection },
 868   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 869   { US"smtp_mailauth",                LX_smtp_mailauth },
 870   { US"smtp_no_mail",                 LX_smtp_no_mail },
 871   { US"smtp_protocol_error",          L_smtp_protocol_error },
 872   { US"smtp_syntax_error",            L_smtp_syntax_error },
 873   { US"subject",                      LX_subject },
 874   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 875   { US"tls_cipher",                   LX_tls_cipher },
 876   { US"tls_peerdn",                   LX_tls_peerdn },
 877   { US"tls_sni",                      LX_tls_sni },
 878   { US"unknown_in_list",              LX_unknown_in_list }
 879 };
 880
 881 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 882 int     log_reject_target      = 0;
 883 uschar *log_selector_string    = NULL;
 884 FILE   *log_stderr             = NULL;
 885 BOOL    log_testing_mode       = FALSE;
 886 BOOL    log_timezone           = FALSE;
 887 unsigned int log_write_selector= L_default;
 888 uschar *login_sender_address   = NULL;
 889 uschar *lookup_dnssec_authenticated = NULL;
 890 int     lookup_open_max        = 25;
 891 uschar *lookup_value           = NULL;
 892
 893 macro_item  *macros            = NULL;
 894 uschar *mailstore_basename     = NULL;
 895 #ifdef WITH_CONTENT_SCAN
 896 uschar *malware_name           = NULL;  /* Virus Name */
 897 #endif
 898 int     max_received_linelength= 0;
 899 int     max_username_length    = 0;
 900 int     message_age            = 0;
 901 uschar *message_body           = NULL;
 902 uschar *message_body_end       = NULL;
 903 BOOL    message_body_newlines  = FALSE;
 904 int     message_body_size      = 0;
 905 int     message_body_visible   = 500;
 906 int     message_ended          = END_NOTSTARTED;
 907 uschar *message_headers        = NULL;
 908 uschar *message_id;
 909 uschar *message_id_domain      = NULL;
 910 uschar *message_id_text        = NULL;
 911 struct timeval message_id_tv   = { 0, 0 };
 912 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 913 uschar *message_id_external;
 914 int     message_linecount      = 0;
 915 BOOL    message_logs           = TRUE;
 916 int     message_size           = 0;
 917 uschar *message_size_limit     = US"50M";
 918 #ifdef EXPERIMENTAL_INTERNATIONAL
 919 BOOL    message_smtputf8       = FALSE;
 920 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 921 #endif
 922 uschar  message_subdir[2]      = { 0, 0 };
 923 uschar *message_reference      = NULL;
 924
 925 /* MIME ACL expandables */
 926 #ifdef WITH_CONTENT_SCAN
 927 int     mime_anomaly_level     = 0;
 928 const uschar *mime_anomaly_text      = NULL;
 929 uschar *mime_boundary          = NULL;
 930 uschar *mime_charset           = NULL;
 931 uschar *mime_content_description = NULL;
 932 uschar *mime_content_disposition = NULL;
 933 uschar *mime_content_id        = NULL;
 934 unsigned int mime_content_size = 0;
 935 uschar *mime_content_transfer_encoding = NULL;
 936 uschar *mime_content_type      = NULL;
 937 uschar *mime_decoded_filename  = NULL;
 938 uschar *mime_filename          = NULL;
 939 int     mime_is_multipart      = 0;
 940 int     mime_is_coverletter    = 0;
 941 int     mime_is_rfc822         = 0;
 942 int     mime_part_count        = -1;
 943 #endif
 944
 945 BOOL    mua_wrapper            = FALSE;
 946
 947 uid_t  *never_users            = NULL;
 948 #ifdef WITH_CONTENT_SCAN
 949 BOOL    no_mbox_unspool        = FALSE;
 950 #endif
 951 BOOL    no_multiline_responses = FALSE;
 952
 953 uid_t   original_euid;
 954 gid_t   originator_gid;
 955 uschar *originator_login       = NULL;
 956 uschar *originator_name        = NULL;
 957 uid_t   originator_uid;
 958 uschar *override_local_interfaces = NULL;
 959 uschar *override_pid_file_path = NULL;
 960
 961 BOOL    parse_allow_group      = FALSE;
 962 BOOL    parse_found_group      = FALSE;
 963 uschar *percent_hack_domains   = NULL;
 964 uschar *pid_file_path          = US PID_FILE_PATH
 965                            "\0<--------------Space to patch pid_file_path->";
 966 BOOL    pipelining_enable      = TRUE;
 967 uschar *pipelining_advertise_hosts = US"*";
 968 BOOL    preserve_message_logs  = FALSE;
 969 uschar *primary_hostname       = NULL;
 970 BOOL    print_topbitchars      = FALSE;
 971 uschar  process_info[PROCESS_INFO_SIZE];
 972 int     process_info_len       = 0;
 973 uschar *process_log_path       = NULL;
 974 BOOL    prod_requires_admin    = TRUE;
 975
 976 #ifdef EXPERIMENTAL_PROXY
 977 uschar *proxy_host_address     = US"";
 978 int     proxy_host_port        = 0;
 979 uschar *proxy_required_hosts   = US"";
 980 BOOL    proxy_session          = FALSE;
 981 BOOL    proxy_session_failed   = FALSE;
 982 uschar *proxy_target_address   = US"";
 983 int     proxy_target_port      = 0;
 984 #endif
 985
 986 uschar *prvscheck_address      = NULL;
 987 uschar *prvscheck_keynum       = NULL;
 988 uschar *prvscheck_result       = NULL;
 989
 990
 991 const uschar *qualify_domain_recipient = NULL;
 992 uschar *qualify_domain_sender  = NULL;
 993 BOOL    queue_2stage           = FALSE;
 994 uschar *queue_domains          = NULL;
 995 int     queue_interval         = -1;
 996 BOOL    queue_list_requires_admin = TRUE;
 997 BOOL    queue_only             = FALSE;
 998 uschar *queue_only_file        = NULL;
 999 int     queue_only_load        = -1;
1000 BOOL    queue_only_load_latch  = TRUE;
1001 BOOL    queue_only_override    = TRUE;
1002 BOOL    queue_only_policy      = FALSE;
1003 BOOL    queue_run_first_delivery = FALSE;
1004 BOOL    queue_run_force        = FALSE;
1005 BOOL    queue_run_in_order     = FALSE;
1006 BOOL    queue_run_local        = FALSE;
1007 int     queue_run_max          = 5;
1008 pid_t   queue_run_pid          = (pid_t)0;
1009 int     queue_run_pipe         = -1;
1010 BOOL    queue_running          = FALSE;
1011 BOOL    queue_smtp             = FALSE;
1012 uschar *queue_smtp_domains     = NULL;
1013
1014 unsigned int random_seed       = 0;
1015 tree_node *ratelimiters_cmd    = NULL;
1016 tree_node *ratelimiters_conn   = NULL;
1017 tree_node *ratelimiters_mail   = NULL;
1018 uschar *raw_active_hostname    = NULL;
1019 uschar *raw_sender             = NULL;
1020 uschar **raw_recipients        = NULL;
1021 int     raw_recipients_count   = 0;
1022
1023 int     rcpt_count             = 0;
1024 int     rcpt_fail_count        = 0;
1025 int     rcpt_defer_count       = 0;
1026 gid_t   real_gid;
1027 uid_t   real_uid;
1028 BOOL    really_exim            = TRUE;
1029 BOOL    receive_call_bombout   = FALSE;
1030 int     receive_linecount      = 0;
1031 int     receive_messagecount   = 0;
1032 int     receive_timeout        = 0;
1033 int     received_count         = 0;
1034 uschar *received_for           = NULL;
1035
1036 /*  This is the default text for Received headers generated by Exim. The
1037 date  will be automatically added on the end. */
1038
1039 uschar *received_header_text   = US
1040      "Received: "
1041      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1042      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1043      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1044      "by $primary_hostname "
1045      "${if def:received_protocol {with $received_protocol}} "
1046      #ifdef SUPPORT_TLS
1047      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1048      #endif
1049      "(Exim $version_number)\n\t"
1050      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1051      "id $message_exim_id"
1052      "${if def:received_for {\n\tfor $received_for}}"
1053      "\0<---------------Space to patch received_header_text->";
1054
1055 int     received_headers_max   = 30;
1056 uschar *received_protocol      = NULL;
1057 int     received_time          = 0;
1058 uschar *recipient_data         = NULL;
1059 uschar *recipient_unqualified_hosts = NULL;
1060 uschar *recipient_verify_failure = NULL;
1061 int     recipients_count       = 0;
1062 BOOL    recipients_discarded   = FALSE;
1063 recipient_item  *recipients_list = NULL;
1064 int     recipients_list_max    = 0;
1065 int     recipients_max         = 0;
1066 BOOL    recipients_max_reject  = FALSE;
1067 const pcre *regex_AUTH         = NULL;
1068 const pcre *regex_check_dns_names = NULL;
1069 const pcre *regex_From         = NULL;
1070 const pcre *regex_IGNOREQUOTA  = NULL;
1071 const pcre *regex_PIPELINING   = NULL;
1072 const pcre *regex_SIZE         = NULL;
1073 const pcre *regex_smtp_code    = NULL;
1074 const pcre *regex_ismsgid      = NULL;
1075 #ifdef WHITELIST_D_MACROS
1076 const pcre *regex_whitelisted_macro = NULL;
1077 #endif
1078 #ifdef WITH_CONTENT_SCAN
1079 uschar *regex_match_string     = NULL;
1080 #endif
1081 int     remote_delivery_count  = 0;
1082 int     remote_max_parallel    = 2;
1083 uschar *remote_sort_domains    = NULL;
1084 int     retry_data_expire      = 7*24*60*60;
1085 int     retry_interval_max     = 24*60*60;
1086 int     retry_maximum_timeout  = 0;        /* set from retry config */
1087 retry_config  *retries         = NULL;
1088 uschar *return_path            = NULL;
1089 BOOL    return_path_remove     = TRUE;
1090 int     rewrite_existflags     = 0;
1091 uschar *rfc1413_hosts          = US"@[]";
1092 int     rfc1413_query_timeout  = 0;
1093 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1094 uid_t   root_gid               = ROOT_GID;
1095 uid_t   root_uid               = ROOT_UID;
1096
1097 router_instance  *routers  = NULL;
1098 router_instance  router_defaults = {
1099     NULL,                      /* chain pointer */
1100     NULL,                      /* name */
1101     NULL,                      /* info */
1102     NULL,                      /* private options block pointer */
1103     NULL,                      /* driver name */
1104
1105     NULL,                      /* address_data */
1106 #ifdef EXPERIMENTAL_BRIGHTMAIL
1107     NULL,                      /* bmi_rule */
1108 #endif
1109     NULL,                      /* cannot_route_message */
1110     NULL,                      /* condition */
1111     NULL,                      /* current_directory */
1112     NULL,                      /* debug_string */
1113     NULL,                      /* domains */
1114     NULL,                      /* errors_to */
1115     NULL,                      /* expand_gid */
1116     NULL,                      /* expand_uid */
1117     NULL,                      /* expand_more */
1118     NULL,                      /* expand_unseen */
1119     NULL,                      /* extra_headers */
1120     NULL,                      /* fallback_hosts */
1121     NULL,                      /* home_directory */
1122     NULL,                      /* ignore_target_hosts */
1123     NULL,                      /* local_parts */
1124     NULL,                      /* pass_router_name */
1125     NULL,                      /* prefix */
1126     NULL,                      /* redirect_router_name */
1127     NULL,                      /* remove_headers */
1128     NULL,                      /* require_files */
1129     NULL,                      /* router_home_directory */
1130     US"freeze",                /* self */
1131     NULL,                      /* senders */
1132     NULL,                      /* suffix */
1133     NULL,                      /* translate_ip_address */
1134     NULL,                      /* transport_name */
1135
1136     TRUE,                      /* address_test */
1137 #ifdef EXPERIMENTAL_BRIGHTMAIL
1138     FALSE,                     /* bmi_deliver_alternate */
1139     FALSE,                     /* bmi_deliver_default */
1140     FALSE,                     /* bmi_dont_deliver */
1141 #endif
1142     TRUE,                      /* expn */
1143     FALSE,                     /* caseful_local_part */
1144     FALSE,                     /* check_local_user */
1145     FALSE,                     /* disable_logging */
1146     FALSE,                     /* fail_verify_recipient */
1147     FALSE,                     /* fail_verify_sender */
1148     FALSE,                     /* gid_set */
1149     FALSE,                     /* initgroups */
1150     TRUE_UNSET,                /* log_as_local */
1151     TRUE,                      /* more */
1152     FALSE,                     /* pass_on_timeout */
1153     FALSE,                     /* prefix_optional */
1154     TRUE,                      /* repeat_use */
1155     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1156     FALSE,                     /* same_domain_copy_routing */
1157     FALSE,                     /* self_rewrite */
1158     FALSE,                     /* suffix_optional */
1159     FALSE,                     /* verify_only */
1160     TRUE,                      /* verify_recipient */
1161     TRUE,                      /* verify_sender */
1162     FALSE,                     /* uid_set */
1163     FALSE,                     /* unseen */
1164     FALSE,                     /* dsn_lasthop */
1165
1166     self_freeze,               /* self_code */
1167     (uid_t)(-1),               /* uid */
1168     (gid_t)(-1),               /* gid */
1169
1170     NULL,                      /* fallback_hostlist */
1171     NULL,                      /* transport instance */
1172     NULL,                      /* pass_router */
1173     NULL,                      /* redirect_router */
1174
1175     { NULL, NULL },            /* dnssec_domains {require,request} */
1176 };
1177
1178 uschar *router_name            = NULL;
1179
1180 ip_address_item *running_interfaces = NULL;
1181 BOOL    running_in_test_harness = FALSE;
1182
1183 /* This is a weird one. The following string gets patched in the binary by the
1184 script that sets up a copy of Exim for running in the test harness. It seems
1185 that compilers are now clever, and share constant strings if they can.
1186 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1187 make use of the end of this string in order to save space. So the patching then
1188 wrecks this. We defeat this optimization by adding some additional characters
1189 onto the end of the string. */
1190
1191 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1192
1193 int     runrc                  = 0;
1194
1195 uschar *search_error_message   = NULL;
1196 BOOL    search_find_defer      = FALSE;
1197 uschar *self_hostname          = NULL;
1198 uschar *sender_address         = NULL;
1199 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1200 uschar *sender_address_data    = NULL;
1201 BOOL    sender_address_forced  = FALSE;
1202 uschar *sender_address_unrewritten = NULL;
1203 uschar *sender_data            = NULL;
1204 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1205 uschar *sender_fullhost        = NULL;
1206 BOOL    sender_helo_dnssec     = FALSE;
1207 uschar *sender_helo_name       = NULL;
1208 uschar **sender_host_aliases   = &no_aliases;
1209 uschar *sender_host_address    = NULL;
1210 uschar *sender_host_authenticated = NULL;
1211 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1212 BOOL    sender_host_dnssec     = FALSE;
1213 uschar *sender_host_name       = NULL;
1214 int     sender_host_port       = 0;
1215 BOOL    sender_host_notsocket  = FALSE;
1216 BOOL    sender_host_unknown    = FALSE;
1217 uschar *sender_ident           = NULL;
1218 BOOL    sender_local           = FALSE;
1219 BOOL    sender_name_forced     = FALSE;
1220 uschar *sender_rate            = NULL;
1221 uschar *sender_rate_limit      = NULL;
1222 uschar *sender_rate_period     = NULL;
1223 uschar *sender_rcvhost         = NULL;
1224 BOOL    sender_set_untrusted   = FALSE;
1225 uschar *sender_unqualified_hosts = NULL;
1226 uschar *sender_verify_failure = NULL;
1227 address_item *sender_verified_list  = NULL;
1228 address_item *sender_verified_failed = NULL;
1229 int     sender_verified_rc     = -1;
1230 BOOL    sender_verified_responded = FALSE;
1231 uschar *sending_ip_address     = NULL;
1232 int     sending_port           = -1;
1233 SIGNAL_BOOL sigalrm_seen       = FALSE;
1234 uschar **sighup_argv           = NULL;
1235 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1236 int     smtp_accept_count      = 0;
1237 BOOL    smtp_accept_keepalive  = TRUE;
1238 int     smtp_accept_max        = 20;
1239 int     smtp_accept_max_nonmail= 10;
1240 uschar *smtp_accept_max_nonmail_hosts = US"*";
1241 int     smtp_accept_max_per_connection = 1000;
1242 uschar *smtp_accept_max_per_host = NULL;
1243 int     smtp_accept_queue      = 0;
1244 int     smtp_accept_queue_per_connection = 10;
1245 int     smtp_accept_reserve    = 0;
1246 uschar *smtp_active_hostname   = NULL;
1247 BOOL    smtp_authenticated     = FALSE;
1248 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1249                              "Exim $version_number $tod_full"
1250                              "\0<---------------Space to patch smtp_banner->";
1251 BOOL    smtp_batched_input     = FALSE;
1252 BOOL    smtp_check_spool_space = TRUE;
1253 int     smtp_ch_index          = 0;
1254 uschar *smtp_cmd_argument      = NULL;
1255 uschar *smtp_cmd_buffer        = NULL;
1256 time_t  smtp_connection_start  = 0;
1257 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1258 int     smtp_connect_backlog   = 20;
1259 double  smtp_delay_mail        = 0.0;
1260 double  smtp_delay_rcpt        = 0.0;
1261 BOOL    smtp_enforce_sync      = TRUE;
1262 FILE   *smtp_in                = NULL;
1263 BOOL    smtp_input             = FALSE;
1264 int     smtp_load_reserve      = -1;
1265 int     smtp_mailcmd_count     = 0;
1266 FILE   *smtp_out               = NULL;
1267 uschar *smtp_etrn_command      = NULL;
1268 BOOL    smtp_etrn_serialize    = TRUE;
1269 int     smtp_max_synprot_errors= 3;
1270 int     smtp_max_unknown_commands = 3;
1271 uschar *smtp_notquit_reason    = NULL;
1272 uschar *smtp_ratelimit_hosts   = NULL;
1273 uschar *smtp_ratelimit_mail    = NULL;
1274 uschar *smtp_ratelimit_rcpt    = NULL;
1275 uschar *smtp_read_error        = US"";
1276 int     smtp_receive_timeout   = 5*60;
1277 uschar *smtp_receive_timeout_s = NULL;
1278 uschar *smtp_reserve_hosts     = NULL;
1279 BOOL    smtp_return_error_details = FALSE;
1280 int     smtp_rlm_base          = 0;
1281 double  smtp_rlm_factor        = 0.0;
1282 int     smtp_rlm_limit         = 0;
1283 int     smtp_rlm_threshold     = INT_MAX;
1284 int     smtp_rlr_base          = 0;
1285 double  smtp_rlr_factor        = 0.0;
1286 int     smtp_rlr_limit         = 0;
1287 int     smtp_rlr_threshold     = INT_MAX;
1288 BOOL    smtp_use_pipelining    = FALSE;
1289 BOOL    smtp_use_size          = FALSE;
1290 #ifdef EXPERIMENTAL_INTERNATIONAL
1291 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1292 #endif
1293
1294 #ifdef WITH_CONTENT_SCAN
1295 uschar *spamd_address          = US"127.0.0.1 783";
1296 uschar *spam_bar               = NULL;
1297 uschar *spam_report            = NULL;
1298 uschar *spam_action            = NULL;
1299 uschar *spam_score             = NULL;
1300 uschar *spam_score_int         = NULL;
1301 #endif
1302 #ifdef EXPERIMENTAL_SPF
1303 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1304 uschar *spf_header_comment     = NULL;
1305 uschar *spf_received           = NULL;
1306 uschar *spf_result             = NULL;
1307 uschar *spf_smtp_comment       = NULL;
1308 #endif
1309
1310 BOOL    split_spool_directory  = FALSE;
1311 uschar *spool_directory        = US SPOOL_DIRECTORY
1312                            "\0<--------------Space to patch spool_directory->";
1313 #ifdef EXPERIMENTAL_SRS
1314 uschar *srs_config             = NULL;
1315 uschar *srs_db_address         = NULL;
1316 uschar *srs_db_key             = NULL;
1317 int     srs_hashlength         = 6;
1318 int     srs_hashmin            = -1;
1319 int     srs_maxage             = 31;
1320 uschar *srs_orig_recipient     = NULL;
1321 uschar *srs_orig_sender        = NULL;
1322 uschar *srs_recipient          = NULL;
1323 uschar *srs_secrets            = NULL;
1324 uschar *srs_status             = NULL;
1325 BOOL    srs_usehash            = TRUE;
1326 BOOL    srs_usetimestamp       = TRUE;
1327 #endif
1328 BOOL    strict_acl_vars        = FALSE;
1329 int     string_datestamp_offset= -1;
1330 int     string_datestamp_length= 0;
1331 int     string_datestamp_type  = -1;
1332 BOOL    strip_excess_angle_brackets = FALSE;
1333 BOOL    strip_trailing_dot     = FALSE;
1334 uschar *submission_domain      = NULL;
1335 BOOL    submission_mode        = FALSE;
1336 uschar *submission_name        = NULL;
1337 BOOL    suppress_local_fixups  = FALSE;
1338 BOOL    suppress_local_fixups_default = FALSE;
1339 BOOL    synchronous_delivery   = FALSE;
1340 BOOL    syslog_duplication     = TRUE;
1341 int     syslog_facility        = LOG_MAIL;
1342 uschar *syslog_processname     = US"exim";
1343 BOOL    syslog_timestamp       = TRUE;
1344 uschar *system_filter          = NULL;
1345
1346 uschar *system_filter_directory_transport = NULL;
1347 uschar *system_filter_file_transport = NULL;
1348 uschar *system_filter_pipe_transport = NULL;
1349 uschar *system_filter_reply_transport = NULL;
1350
1351 gid_t   system_filter_gid      = 0;
1352 BOOL    system_filter_gid_set  = FALSE;
1353 uid_t   system_filter_uid      = (uid_t)-1;
1354 BOOL    system_filter_uid_set  = FALSE;
1355 BOOL    system_filtering       = FALSE;
1356
1357 BOOL    tcp_nodelay            = TRUE;
1358 #ifdef USE_TCP_WRAPPERS
1359 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1360 #endif
1361 int     test_harness_load_avg  = 0;
1362 int     thismessage_size_limit = 0;
1363 int     timeout_frozen_after   = 0;
1364 BOOL    timestamps_utc         = FALSE;
1365
1366 transport_instance  *transports = NULL;
1367
1368 transport_instance  transport_defaults = {
1369     NULL,                     /* chain pointer */
1370     NULL,                     /* name */
1371     NULL,                     /* info */
1372     NULL,                     /* private options block pointer */
1373     NULL,                     /* driver name */
1374     NULL,                     /* setup entry point */
1375     1,                        /* batch_max */
1376     NULL,                     /* batch_id */
1377     NULL,                     /* home_dir */
1378     NULL,                     /* current_dir */
1379     NULL,                     /* expand-multi-domain */
1380     TRUE,                     /* multi-domain */
1381     FALSE,                    /* overrides_hosts */
1382     100,                      /* max_addresses */
1383     500,                      /* connection_max_messages */
1384     FALSE,                    /* deliver_as_creator */
1385     FALSE,                    /* disable_logging */
1386     FALSE,                    /* initgroups */
1387     FALSE,                    /* uid_set */
1388     FALSE,                    /* gid_set */
1389     (uid_t)(-1),              /* uid */
1390     (gid_t)(-1),              /* gid */
1391     NULL,                     /* expand_uid */
1392     NULL,                     /* expand_gid */
1393     NULL,                     /* warn_message */
1394     NULL,                     /* shadow */
1395     NULL,                     /* shadow_condition */
1396     NULL,                     /* filter_command */
1397     NULL,                     /* add_headers */
1398     NULL,                     /* remove_headers */
1399     NULL,                     /* return_path */
1400     NULL,                     /* debug_string */
1401     NULL,                     /* message_size_limit */
1402     NULL,                     /* headers_rewrite */
1403     NULL,                     /* rewrite_rules */
1404     0,                        /* rewrite_existflags */
1405     300,                      /* filter_timeout */
1406     FALSE,                    /* body_only */
1407     FALSE,                    /* delivery_date_add */
1408     FALSE,                    /* envelope_to_add */
1409     FALSE,                    /* headers_only */
1410     FALSE,                    /* rcpt_include_affixes */
1411     FALSE,                    /* return_path_add */
1412     FALSE,                    /* return_output */
1413     FALSE,                    /* return_fail_output */
1414     FALSE,                    /* log_output */
1415     FALSE,                    /* log_fail_output */
1416     FALSE,                    /* log_defer_output */
1417     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1418                                  1 nor 0 so can detect unset */
1419 #ifdef EXPERIMENTAL_EVENT
1420    ,NULL                      /* event_action */
1421 #endif
1422 };
1423
1424 int     transport_count;
1425 uschar *transport_name          = NULL;
1426 int     transport_newlines;
1427 const uschar **transport_filter_argv  = NULL;
1428 int     transport_filter_timeout;
1429 BOOL    transport_filter_timed_out = FALSE;
1430 int     transport_write_timeout= 0;
1431
1432 tree_node  *tree_dns_fails     = NULL;
1433 tree_node  *tree_duplicates    = NULL;
1434 tree_node  *tree_nonrecipients = NULL;
1435 tree_node  *tree_unusable      = NULL;
1436
1437 BOOL    trusted_caller         = FALSE;
1438 BOOL    trusted_config         = TRUE;
1439 gid_t  *trusted_groups         = NULL;
1440 uid_t  *trusted_users          = NULL;
1441 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1442
1443 uschar *unknown_login          = NULL;
1444 uschar *unknown_username       = NULL;
1445 uschar *untrusted_set_sender   = NULL;
1446
1447 /*  A regex for matching a "From_" line in an incoming message, in the form
1448
1449     From ph10 Fri Jan  5 12:35 GMT 1996
1450
1451 which  the "mail" commands send to the MTA (undocumented, of course), or in
1452 the  form
1453
1454     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1455
1456 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1457 Because  of variations in time formats, just match up to the minutes. That
1458 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1459 so  just require one digit for hours and minutes. The weekday is also absent
1460 in  some forms. */
1461
1462 uschar *uucp_from_pattern      = US
1463    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1464    "(?:"                                          /* Non-extracting bracket */
1465    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1466    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1467    ")"                                            /* End alternation */
1468    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1469
1470 uschar *uucp_from_sender       = US"$1";
1471
1472 uschar *verify_mode            = NULL;
1473 uschar *version_copyright      =
1474  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1475    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1476 uschar *version_date           = US"?";
1477 uschar *version_cnumber        = US"????";
1478 uschar *version_string         = US"?";
1479
1480 uschar *warn_message_file      = NULL;
1481 int     warning_count          = 0;
1482 uschar *warnmsg_delay          = NULL;
1483 uschar *warnmsg_recipients     = NULL;
1484 BOOL    write_rejectlog        = TRUE;
1485
1486
1487 /*  End of globals.c */