src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2014 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 #endif
  53
  54 #ifdef EXPAND_DLFUNC
  55 tree_node *dlobj_anchor        = NULL;
  56 #endif
  57
  58 #ifdef LOOKUP_IBASE
  59 uschar *ibase_servers          = NULL;
  60 #endif
  61
  62 #ifdef LOOKUP_LDAP
  63 uschar *eldap_ca_cert_dir      = NULL;
  64 uschar *eldap_ca_cert_file     = NULL;
  65 uschar *eldap_cert_file        = NULL;
  66 uschar *eldap_cert_key         = NULL;
  67 uschar *eldap_cipher_suite     = NULL;
  68 uschar *eldap_default_servers  = NULL;
  69 uschar *eldap_require_cert     = NULL;
  70 int     eldap_version          = -1;
  71 BOOL    eldap_start_tls        = FALSE;
  72 #endif
  73
  74 #ifdef LOOKUP_MYSQL
  75 uschar *mysql_servers          = NULL;
  76 #endif
  77
  78 #ifdef LOOKUP_ORACLE
  79 uschar *oracle_servers         = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_PGSQL
  83 uschar *pgsql_servers          = NULL;
  84 #endif
  85
  86 #ifdef EXPERIMENTAL_REDIS
  87 uschar *redis_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 tls_support tls_in = {
 103  -1,   /* tls_active */
 104  0,    /* tls_bits */
 105  FALSE,/* tls_certificate_verified */
 106 #ifdef EXPERIMENTAL_DANE
 107  FALSE,/* dane_verified */
 108  0,    /* tlsa_usage */
 109 #endif
 110  NULL, /* tls_cipher */
 111  FALSE,/* tls_on_connect */
 112  NULL, /* tls_on_connect_ports */
 113  NULL, /* tls_ourcert */
 114  NULL, /* tls_peercert */
 115  NULL, /* tls_peerdn */
 116  NULL, /* tls_sni */
 117  0     /* tls_ocsp */
 118 };
 119 tls_support tls_out = {
 120  -1,   /* tls_active */
 121  0,    /* tls_bits */
 122  FALSE,/* tls_certificate_verified */
 123 #ifdef EXPERIMENTAL_DANE
 124  FALSE,/* dane_verified */
 125  0,    /* tlsa_usage */
 126 #endif
 127  NULL, /* tls_cipher */
 128  FALSE,/* tls_on_connect */
 129  NULL, /* tls_on_connect_ports */
 130  NULL, /* tls_ourcert */
 131  NULL, /* tls_peercert */
 132  NULL, /* tls_peerdn */
 133  NULL, /* tls_sni */
 134  0     /* tls_ocsp */
 135 };
 136
 137 #ifdef EXPERIMENTAL_DSN
 138 uschar *dsn_envid              = NULL;
 139 int     dsn_ret                = 0;
 140 const pcre  *regex_DSN         = NULL;
 141 BOOL    smtp_use_dsn           = FALSE;
 142 uschar *dsn_advertise_hosts    = NULL;
 143 #endif
 144
 145 #ifdef SUPPORT_TLS
 146 BOOL    gnutls_compat_mode     = FALSE;
 147 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 148 uschar *gnutls_require_mac     = NULL;
 149 uschar *gnutls_require_kx      = NULL;
 150 uschar *gnutls_require_proto   = NULL;
 151 uschar *openssl_options        = NULL;
 152 const pcre *regex_STARTTLS     = NULL;
 153 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 154 uschar *tls_certificate        = NULL;
 155 uschar *tls_crl                = NULL;
 156 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 157 that's the interop problem which has been observed: GnuTLS suggesting a higher
 158 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 159 int     tls_dh_max_bits        = 2236;
 160 uschar *tls_dhparam            = NULL;
 161 #ifndef DISABLE_OCSP
 162 uschar *tls_ocsp_file          = NULL;
 163 #endif
 164 BOOL    tls_offered            = FALSE;
 165 uschar *tls_privatekey         = NULL;
 166 BOOL    tls_remember_esmtp     = FALSE;
 167 uschar *tls_require_ciphers    = NULL;
 168 uschar *tls_try_verify_hosts   = NULL;
 169 uschar *tls_verify_certificates= NULL;
 170 uschar *tls_verify_hosts       = NULL;
 171 #endif
 172
 173 #ifndef DISABLE_PRDR
 174 /* Per Recipient Data Response variables */
 175 BOOL    prdr_enable            = FALSE;
 176 BOOL    prdr_requested         = FALSE;
 177 const pcre *regex_PRDR         = NULL;
 178 #endif
 179
 180 /* Input-reading functions for messages, so we can use special ones for
 181 incoming TCP/IP. The defaults use stdin. We never need these for any
 182 stand-alone tests. */
 183
 184 #ifndef STAND_ALONE
 185 int (*receive_getc)(void)      = stdin_getc;
 186 int (*receive_ungetc)(int)     = stdin_ungetc;
 187 int (*receive_feof)(void)      = stdin_feof;
 188 int (*receive_ferror)(void)    = stdin_ferror;
 189 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 190 #endif
 191
 192
 193 /* List of per-address expansion variables for clearing and saving/restoring
 194 when verifying one address while routing/verifying another. We have to have
 195 the size explicit, because it is referenced from more than one module. */
 196
 197 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 198   &deliver_address_data,
 199   &deliver_domain,
 200   &deliver_domain_data,
 201   &deliver_domain_orig,
 202   &deliver_domain_parent,
 203   &deliver_localpart,
 204   &deliver_localpart_data,
 205   &deliver_localpart_orig,
 206   &deliver_localpart_parent,
 207   &deliver_localpart_prefix,
 208   &deliver_localpart_suffix,
 209   (uschar **)(&deliver_recipients),
 210   &deliver_host,
 211   &deliver_home,
 212   &address_file,
 213   &address_pipe,
 214   &self_hostname,
 215   NULL };
 216
 217 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 218
 219 /* General global variables */
 220
 221 header_line *acl_added_headers = NULL;
 222 tree_node *acl_anchor          = NULL;
 223 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 224                                   NULL, NULL, NULL, NULL};
 225 int     acl_narg               = 0;
 226
 227 uschar *acl_not_smtp           = NULL;
 228 #ifdef WITH_CONTENT_SCAN
 229 uschar *acl_not_smtp_mime      = NULL;
 230 #endif
 231 uschar *acl_not_smtp_start     = NULL;
 232 uschar *acl_removed_headers    = NULL;
 233 uschar *acl_smtp_auth          = NULL;
 234 uschar *acl_smtp_connect       = NULL;
 235 uschar *acl_smtp_data          = NULL;
 236 #ifndef DISABLE_PRDR
 237 uschar *acl_smtp_data_prdr     = NULL;
 238 #endif
 239 #ifndef DISABLE_DKIM
 240 uschar *acl_smtp_dkim          = NULL;
 241 #endif
 242 uschar *acl_smtp_etrn          = NULL;
 243 uschar *acl_smtp_expn          = NULL;
 244 uschar *acl_smtp_helo          = NULL;
 245 uschar *acl_smtp_mail          = NULL;
 246 uschar *acl_smtp_mailauth      = NULL;
 247 #ifdef WITH_CONTENT_SCAN
 248 uschar *acl_smtp_mime          = NULL;
 249 #endif
 250 uschar *acl_smtp_notquit       = NULL;
 251 uschar *acl_smtp_predata       = NULL;
 252 uschar *acl_smtp_quit          = NULL;
 253 uschar *acl_smtp_rcpt          = NULL;
 254 uschar *acl_smtp_starttls      = NULL;
 255 uschar *acl_smtp_vrfy          = NULL;
 256
 257 BOOL    acl_temp_details       = FALSE;
 258 tree_node *acl_var_c           = NULL;
 259 tree_node *acl_var_m           = NULL;
 260 uschar *acl_verify_message     = NULL;
 261 string_item *acl_warn_logged   = NULL;
 262
 263 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 264 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 265
 266 uschar *acl_wherenames[]       = { US"RCPT",
 267                                    US"MAIL",
 268                                    US"PREDATA",
 269                                    US"MIME",
 270                                    US"DKIM",
 271                                    US"DATA",
 272 #ifndef DISABLE_PRDR
 273                                    US"PRDR",
 274 #endif
 275                                    US"non-SMTP",
 276                                    US"AUTH",
 277                                    US"connection",
 278                                    US"ETRN",
 279                                    US"EXPN",
 280                                    US"EHLO or HELO",
 281                                    US"MAILAUTH",
 282                                    US"non-SMTP-start",
 283                                    US"NOTQUIT",
 284                                    US"QUIT",
 285                                    US"STARTTLS",
 286                                    US"VRFY",
 287                                    US"delivery",
 288                                    US"unknown"
 289                                  };
 290
 291 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 292                                    US"550",     /* MAIL */
 293                                    US"550",     /* PREDATA */
 294                                    US"550",     /* MIME */
 295                                    US"550",     /* DKIM */
 296                                    US"550",     /* DATA */
 297 #ifndef DISABLE_PRDR
 298                                    US"550",    /* RCPT PRDR */
 299 #endif
 300                                    US"0",       /* not SMTP; not relevant */
 301                                    US"503",     /* AUTH */
 302                                    US"550",     /* connect */
 303                                    US"458",     /* ETRN */
 304                                    US"550",     /* EXPN */
 305                                    US"550",     /* HELO/EHLO */
 306                                    US"0",       /* MAILAUTH; not relevant */
 307                                    US"0",       /* not SMTP; not relevant */
 308                                    US"0",       /* NOTQUIT; not relevant */
 309                                    US"0",       /* QUIT; not relevant */
 310                                    US"550",     /* STARTTLS */
 311                                    US"252",     /* VRFY */
 312                                    US"0",       /* delivery; not relevant */
 313                                    US"0"        /* unknown; not relevant */
 314                                  };
 315
 316 BOOL    active_local_from_check = FALSE;
 317 BOOL    active_local_sender_retain = FALSE;
 318 int     body_8bitmime = 0;
 319 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 320 address_item  *addr_duplicate  = NULL;
 321
 322 address_item address_defaults = {
 323   NULL,                 /* next */
 324   NULL,                 /* parent */
 325   NULL,                 /* first */
 326   NULL,                 /* dupof */
 327   NULL,                 /* start_router */
 328   NULL,                 /* router */
 329   NULL,                 /* transport */
 330   NULL,                 /* host_list */
 331   NULL,                 /* host_used */
 332   NULL,                 /* fallback_hosts */
 333   NULL,                 /* reply */
 334   NULL,                 /* retries */
 335   NULL,                 /* address */
 336   NULL,                 /* unique */
 337   NULL,                 /* cc_local_part */
 338   NULL,                 /* lc_local_part */
 339   NULL,                 /* local_part */
 340   NULL,                 /* prefix */
 341   NULL,                 /* suffix */
 342   NULL,                 /* domain */
 343   NULL,                 /* address_retry_key */
 344   NULL,                 /* domain_retry_key */
 345   NULL,                 /* current_dir */
 346   NULL,                 /* home_dir */
 347   NULL,                 /* message */
 348   NULL,                 /* user_message */
 349   NULL,                 /* onetime_parent */
 350   NULL,                 /* pipe_expandn */
 351   NULL,                 /* return_filename */
 352   NULL,                 /* self_hostname */
 353   NULL,                 /* shadow_message */
 354   #ifdef SUPPORT_TLS
 355   NULL,                 /* cipher */
 356   NULL,                 /* ourcert */
 357   NULL,                 /* peercert */
 358   NULL,                 /* peerdn */
 359   OCSP_NOT_REQ,         /* ocsp */
 360   #endif
 361   NULL,                 /* authenticator */
 362   NULL,                 /* auth_id */
 363   NULL,                 /* auth_sndr */
 364   #ifdef EXPERIMENTAL_DSN
 365   NULL,                 /* dsn_orcpt */
 366   0,                    /* dsn_flags */
 367   0,                    /* dsn_aware */
 368   #endif
 369   (uid_t)(-1),          /* uid */
 370   (gid_t)(-1),          /* gid */
 371   0,                    /* flags */
 372   { 0 },                /* domain_cache - any larger array should be zeroed */
 373   { 0 },                /* localpart_cache - ditto */
 374   -1,                   /* mode */
 375   0,                    /* more_errno */
 376   ERRNO_UNKNOWNERROR,   /* basic_errno */
 377   0,                    /* child_count */
 378   -1,                   /* return_file */
 379   SPECIAL_NONE,         /* special_action */
 380   DEFER,                /* transport_return */
 381   {                     /* fields that are propagated to children */
 382     NULL,               /* address_data */
 383     NULL,               /* domain_data */
 384     NULL,               /* localpart_data */
 385     NULL,               /* errors_address */
 386     NULL,               /* extra_headers */
 387     NULL,               /* remove_headers */
 388 #ifdef EXPERIMENTAL_SRS
 389     NULL,               /* srs_sender */
 390 #endif
 391   }
 392 };
 393
 394 uschar *address_file           = NULL;
 395 uschar *address_pipe           = NULL;
 396 BOOL    address_test_mode      = FALSE;
 397 tree_node *addresslist_anchor  = NULL;
 398 int     addresslist_count      = 0;
 399 gid_t  *admin_groups           = NULL;
 400 BOOL    admin_user             = FALSE;
 401 BOOL    allow_auth_unadvertised= FALSE;
 402 BOOL    allow_domain_literals  = FALSE;
 403 BOOL    allow_mx_to_ip         = FALSE;
 404 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 405 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 406 BOOL    allow_utf8_domains     = FALSE;
 407 uschar *authenticated_fail_id  = NULL;
 408 uschar *authenticated_id       = NULL;
 409 uschar *authenticated_sender   = NULL;
 410 BOOL    authentication_failed  = FALSE;
 411 auth_instance  *auths          = NULL;
 412 uschar *auth_advertise_hosts   = US"*";
 413 auth_instance auth_defaults    = {
 414     NULL,                      /* chain pointer */
 415     NULL,                      /* name */
 416     NULL,                      /* info */
 417     NULL,                      /* private options block pointer */
 418     NULL,                      /* driver_name */
 419     NULL,                      /* advertise_condition */
 420     NULL,                      /* client_condition */
 421     NULL,                      /* public_name */
 422     NULL,                      /* set_id */
 423     NULL,                      /* set_client_id */
 424     NULL,                      /* server_mail_auth_condition */
 425     NULL,                      /* server_debug_string */
 426     NULL,                      /* server_condition */
 427     FALSE,                     /* client */
 428     FALSE,                     /* server */
 429     FALSE                      /* advertised */
 430 };
 431
 432 uschar *auth_defer_msg         = US"reason not recorded";
 433 uschar *auth_defer_user_msg    = US"";
 434 uschar *auth_vars[AUTH_VARS];
 435 int     auto_thaw              = 0;
 436 #ifdef WITH_CONTENT_SCAN
 437 BOOL    av_failed              = FALSE;
 438 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 439 #endif
 440
 441 BOOL    background_daemon      = TRUE;
 442
 443 #if BASE_62 == 62
 444 uschar *base62_chars=
 445     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 446 #else
 447 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 448 #endif
 449
 450 uschar *bi_command             = NULL;
 451 uschar *big_buffer             = NULL;
 452 int     big_buffer_size        = BIG_BUFFER_SIZE;
 453 #ifdef EXPERIMENTAL_BRIGHTMAIL
 454 uschar *bmi_alt_location       = NULL;
 455 uschar *bmi_base64_tracker_verdict = NULL;
 456 uschar *bmi_base64_verdict     = NULL;
 457 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 458 int     bmi_deliver            = 1;
 459 int     bmi_run                = 0;
 460 uschar *bmi_verdicts           = NULL;
 461 #endif
 462 int     body_linecount         = 0;
 463 int     body_zerocount         = 0;
 464 uschar *bounce_message_file    = NULL;
 465 uschar *bounce_message_text    = NULL;
 466 uschar *bounce_recipient       = NULL;
 467 BOOL    bounce_return_body     = TRUE;
 468 BOOL    bounce_return_message  = TRUE;
 469 int     bounce_return_size_limit = 100*1024;
 470 uschar *bounce_sender_authentication = NULL;
 471 int     bsmtp_transaction_linecount = 0;
 472
 473 int     callout_cache_domain_positive_expire = 7*24*60*60;
 474 int     callout_cache_domain_negative_expire = 3*60*60;
 475 int     callout_cache_positive_expire = 24*60*60;
 476 int     callout_cache_negative_expire = 2*60*60;
 477 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 478 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 479 int     check_log_inodes       = 0;
 480 int     check_log_space        = 0;
 481 BOOL    check_rfc2047_length   = TRUE;
 482 int     check_spool_inodes     = 0;
 483 int     check_spool_space      = 0;
 484 uschar  *client_authenticator  = NULL;
 485 uschar  *client_authenticated_id = NULL;
 486 uschar  *client_authenticated_sender = NULL;
 487 int     clmacro_count          = 0;
 488 uschar *clmacros[MAX_CLMACROS];
 489 BOOL    config_changed         = FALSE;
 490 FILE   *config_file            = NULL;
 491 uschar *config_filename        = NULL;
 492 int     config_lineno          = 0;
 493 #ifdef CONFIGURE_GROUP
 494 gid_t   config_gid             = CONFIGURE_GROUP;
 495 #endif
 496 uschar *config_main_filelist   = US CONFIGURE_FILE
 497                          "\0<-----------Space to patch configure_filename->";
 498 uschar *config_main_filename   = NULL;
 499
 500 #ifdef CONFIGURE_OWNER
 501 uid_t   config_uid             = CONFIGURE_OWNER;
 502 #endif
 503
 504 int     connection_max_messages= -1;
 505 uschar *continue_hostname      = NULL;
 506 uschar *continue_host_address  = NULL;
 507 BOOL    continue_more          = FALSE;
 508 int     continue_sequence      = 1;
 509 uschar *continue_transport     = NULL;
 510
 511 uschar *csa_status             = NULL;
 512 BOOL    cutthrough_delivery    = FALSE;
 513 int     cutthrough_fd          = -1;
 514
 515 BOOL    daemon_listen          = FALSE;
 516 uschar *daemon_smtp_port       = US"smtp";
 517 int     daemon_startup_retries = 9;
 518 int     daemon_startup_sleep   = 30;
 519
 520 #ifdef EXPERIMENTAL_DCC
 521 BOOL    dcc_direct_add_header  = FALSE;
 522 uschar *dcc_header             = NULL;
 523 uschar *dcc_result             = NULL;
 524 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 525 uschar *dccifd_options         = US"header";
 526 #endif
 527
 528 BOOL    debug_daemon           = FALSE;
 529 int     debug_fd               = -1;
 530 FILE   *debug_file             = NULL;
 531 bit_table debug_options[]      = {
 532   { US"acl",            D_acl },
 533   { US"all",            D_all },
 534   { US"auth",           D_auth },
 535   { US"deliver",        D_deliver },
 536   { US"dns",            D_dns },
 537   { US"dnsbl",          D_dnsbl },
 538   { US"exec",           D_exec },
 539   { US"expand",         D_expand },
 540   { US"filter",         D_filter },
 541   { US"hints_lookup",   D_hints_lookup },
 542   { US"host_lookup",    D_host_lookup },
 543   { US"ident",          D_ident },
 544   { US"interface",      D_interface },
 545   { US"lists",          D_lists },
 546   { US"load",           D_load },
 547   { US"local_scan",     D_local_scan },
 548   { US"lookup",         D_lookup },
 549   { US"memory",         D_memory },
 550   { US"pid",            D_pid },
 551   { US"process_info",   D_process_info },
 552   { US"queue_run",      D_queue_run },
 553   { US"receive",        D_receive },
 554   { US"resolver",       D_resolver },
 555   { US"retry",          D_retry },
 556   { US"rewrite",        D_rewrite },
 557   { US"route",          D_route },
 558   { US"timestamp",      D_timestamp },
 559   { US"tls",            D_tls },
 560   { US"transport",      D_transport },
 561   { US"uid",            D_uid },
 562   { US"verify",         D_verify }
 563 };
 564 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 565 unsigned int debug_selector    = 0;
 566 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 567 uschar *delay_warning_condition=
 568   US"${if or {"
 569             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 570             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 571             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 572             "} {no}{yes}}";
 573 BOOL    delivery_date_remove   = TRUE;
 574 uschar *deliver_address_data   = NULL;
 575 int     deliver_datafile       = -1;
 576 uschar *deliver_domain         = NULL;
 577 uschar *deliver_domain_data    = NULL;
 578 uschar *deliver_domain_orig    = NULL;
 579 uschar *deliver_domain_parent  = NULL;
 580 BOOL    deliver_drop_privilege = FALSE;
 581 BOOL    deliver_firsttime      = FALSE;
 582 BOOL    deliver_force          = FALSE;
 583 BOOL    deliver_freeze         = FALSE;
 584 time_t  deliver_frozen_at      = 0;
 585 uschar *deliver_home           = NULL;
 586 uschar *deliver_host           = NULL;
 587 uschar *deliver_host_address   = NULL;
 588 int     deliver_host_port      = 0;
 589 uschar *deliver_in_buffer      = NULL;
 590 ino_t   deliver_inode          = 0;
 591 uschar *deliver_localpart      = NULL;
 592 uschar *deliver_localpart_data = NULL;
 593 uschar *deliver_localpart_orig = NULL;
 594 uschar *deliver_localpart_parent = NULL;
 595 uschar *deliver_localpart_prefix = NULL;
 596 uschar *deliver_localpart_suffix = NULL;
 597 BOOL    deliver_force_thaw     = FALSE;
 598 BOOL    deliver_manual_thaw    = FALSE;
 599 uschar *deliver_out_buffer     = NULL;
 600 int     deliver_queue_load_max = -1;
 601 address_item  *deliver_recipients = NULL;
 602 uschar *deliver_selectstring   = NULL;
 603 BOOL    deliver_selectstring_regex = FALSE;
 604 uschar *deliver_selectstring_sender = NULL;
 605 BOOL    deliver_selectstring_sender_regex = FALSE;
 606 #ifdef WITH_OLD_DEMIME
 607 int     demime_errorlevel      = 0;
 608 int     demime_ok              = 0;
 609 uschar *demime_reason          = NULL;
 610 #endif
 611 BOOL    disable_callout_flush  = FALSE;
 612 BOOL    disable_delay_flush    = FALSE;
 613 #ifdef ENABLE_DISABLE_FSYNC
 614 BOOL    disable_fsync          = FALSE;
 615 #endif
 616 BOOL    disable_ipv6           = FALSE;
 617 BOOL    disable_logging        = FALSE;
 618
 619 #ifndef DISABLE_DKIM
 620 uschar *dkim_cur_signer          = NULL;
 621 uschar *dkim_signers             = NULL;
 622 uschar *dkim_signing_domain      = NULL;
 623 uschar *dkim_signing_selector    = NULL;
 624 uschar *dkim_verify_signers      = US"$dkim_signers";
 625 BOOL    dkim_collect_input       = FALSE;
 626 BOOL    dkim_disable_verify      = FALSE;
 627 #endif
 628 #ifdef EXPERIMENTAL_DMARC
 629 BOOL    dmarc_has_been_checked  = FALSE;
 630 uschar *dmarc_ar_header         = NULL;
 631 uschar *dmarc_domain_policy     = NULL;
 632 uschar *dmarc_forensic_sender   = NULL;
 633 uschar *dmarc_history_file      = NULL;
 634 uschar *dmarc_status            = NULL;
 635 uschar *dmarc_status_text       = NULL;
 636 uschar *dmarc_tld_file          = NULL;
 637 uschar *dmarc_used_domain       = NULL;
 638 BOOL    dmarc_disable_verify    = FALSE;
 639 BOOL    dmarc_enable_forensic   = FALSE;
 640 #endif
 641
 642 uschar *dns_again_means_nonexist = NULL;
 643 int     dns_csa_search_limit   = 5;
 644 BOOL    dns_csa_use_reverse    = TRUE;
 645 #ifdef EXPERIMENTAL_DANE
 646 int     dns_dane_ok            = -1;
 647 #endif
 648 uschar *dns_ipv4_lookup        = NULL;
 649 int     dns_retrans            = 0;
 650 int     dns_retry              = 0;
 651 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 652 int     dns_use_edns0          = -1; /* <0 = not coerced */
 653 uschar *dnslist_domain         = NULL;
 654 uschar *dnslist_matched        = NULL;
 655 uschar *dnslist_text           = NULL;
 656 uschar *dnslist_value          = NULL;
 657 tree_node *domainlist_anchor   = NULL;
 658 int     domainlist_count       = 0;
 659 BOOL    dont_deliver           = FALSE;
 660 BOOL    dot_ends               = TRUE;
 661 BOOL    drop_cr                = FALSE;         /* No longer used */
 662 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 663
 664 BOOL    enable_dollar_recipients = FALSE;
 665 BOOL    envelope_to_remove     = TRUE;
 666 int     errno_quota            = ERRNO_QUOTA;
 667 uschar *errors_copy            = NULL;
 668 int     error_handling         = ERRORS_SENDER;
 669 uschar *errors_reply_to        = NULL;
 670 int     errors_sender_rc       = EXIT_FAILURE;
 671
 672 gid_t   exim_gid               = EXIM_GID;
 673 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 674 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 675                         "\0<---------------Space to patch exim_path->";
 676 uid_t   exim_uid               = EXIM_UID;
 677 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 678 int     expand_forbid          = 0;
 679 int     expand_nlength[EXPAND_MAXN+1];
 680 int     expand_nmax            = -1;
 681 uschar *expand_nstring[EXPAND_MAXN+1];
 682 BOOL    expand_string_forcedfail = FALSE;
 683 uschar *expand_string_message;
 684 BOOL    extract_addresses_remove_arguments = TRUE;
 685 uschar *extra_local_interfaces = NULL;
 686
 687 int     fake_response          = OK;
 688 uschar *fake_response_text     = US"Your message has been rejected but is "
 689                                    "being kept for evaluation.\nIf it was a "
 690                                    "legitimate message, it may still be "
 691                                    "delivered to the target recipient(s).";
 692 int     filter_n[FILTER_VARIABLE_COUNT];
 693 BOOL    filter_running         = FALSE;
 694 int     filter_sn[FILTER_VARIABLE_COUNT];
 695 int     filter_test            = FTEST_NONE;
 696 uschar *filter_test_sfile      = NULL;
 697 uschar *filter_test_ufile      = NULL;
 698 uschar *filter_thisaddress     = NULL;
 699 int     finduser_retries       = 0;
 700 #ifdef WITH_OLD_DEMIME
 701 uschar *found_extension        = NULL;
 702 #endif
 703 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 704 uschar *freeze_tell            = NULL;
 705 uschar *freeze_tell_config     = NULL;
 706 uschar *fudged_queue_times     = US"";
 707
 708 uschar *gecos_name             = NULL;
 709 uschar *gecos_pattern          = NULL;
 710 rewrite_rule  *global_rewrite_rules = NULL;
 711
 712 uschar *headers_charset        = US HEADERS_CHARSET;
 713 int     header_insert_maxlen   = 64 * 1024;
 714 header_line  *header_last      = NULL;
 715 header_line  *header_list      = NULL;
 716 int     header_maxsize         = HEADER_MAXSIZE;
 717 int     header_line_maxsize    = 0;
 718
 719 header_name header_names[] = {
 720   { US"bcc",            3, TRUE,  htype_bcc },
 721   { US"cc",             2, TRUE,  htype_cc },
 722   { US"date",           4, TRUE,  htype_date },
 723   { US"delivery-date", 13, FALSE, htype_delivery_date },
 724   { US"envelope-to",   11, FALSE, htype_envelope_to },
 725   { US"from",           4, TRUE,  htype_from },
 726   { US"message-id",    10, TRUE,  htype_id },
 727   { US"received",       8, FALSE, htype_received },
 728   { US"reply-to",       8, FALSE, htype_reply_to },
 729   { US"return-path",   11, FALSE, htype_return_path },
 730   { US"sender",         6, TRUE,  htype_sender },
 731   { US"subject",        7, FALSE, htype_subject },
 732   { US"to",             2, TRUE,  htype_to }
 733 };
 734
 735 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 736
 737 BOOL    header_rewritten       = FALSE;
 738 uschar *helo_accept_junk_hosts = NULL;
 739 uschar *helo_allow_chars       = US"";
 740 uschar *helo_lookup_domains    = US"@ : @[]";
 741 uschar *helo_try_verify_hosts  = NULL;
 742 BOOL    helo_verified          = FALSE;
 743 BOOL    helo_verify_failed     = FALSE;
 744 uschar *helo_verify_hosts      = NULL;
 745 const uschar *hex_digits       = CUS"0123456789abcdef";
 746 uschar *hold_domains           = NULL;
 747 BOOL    host_checking          = FALSE;
 748 BOOL    host_checking_callout  = FALSE;
 749 uschar *host_data              = NULL;
 750 BOOL    host_find_failed_syntax= FALSE;
 751 uschar *host_lookup            = NULL;
 752 BOOL    host_lookup_deferred   = FALSE;
 753 BOOL    host_lookup_failed     = FALSE;
 754 uschar *host_lookup_order      = US"bydns:byaddr";
 755 uschar *host_lookup_msg        = US"";
 756 int     host_number            = 0;
 757 uschar *host_number_string     = NULL;
 758 uschar *host_reject_connection = NULL;
 759 tree_node *hostlist_anchor     = NULL;
 760 int     hostlist_count         = 0;
 761 uschar *hosts_treat_as_local   = NULL;
 762 uschar *hosts_connection_nolog = NULL;
 763
 764 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 765 BOOL    ignore_fromline_local  = FALSE;
 766 uschar *ignore_fromline_hosts  = NULL;
 767 BOOL    inetd_wait_mode        = FALSE;
 768 int     inetd_wait_timeout     = -1;
 769 uschar *interface_address      = NULL;
 770 int     interface_port         = -1;
 771 BOOL    is_inetd               = FALSE;
 772 uschar *iterate_item           = NULL;
 773
 774 int     journal_fd             = -1;
 775
 776 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 777
 778 uschar *eldap_dn               = NULL;
 779 int     load_average           = -2;
 780 BOOL    local_error_message    = FALSE;
 781 BOOL    local_from_check       = TRUE;
 782 uschar *local_from_prefix      = NULL;
 783 uschar *local_from_suffix      = NULL;
 784
 785 #if HAVE_IPV6
 786 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 787 #else
 788 uschar *local_interfaces       = US"0.0.0.0";
 789 #endif
 790
 791 uschar *local_scan_data        = NULL;
 792 int     local_scan_timeout     = 5*60;
 793 BOOL    local_sender_retain    = FALSE;
 794 gid_t   local_user_gid         = (gid_t)(-1);
 795 uid_t   local_user_uid         = (uid_t)(-1);
 796
 797 tree_node *localpartlist_anchor= NULL;
 798 int     localpartlist_count    = 0;
 799 uschar *log_buffer             = NULL;
 800 unsigned int log_extra_selector = LX_default;
 801 uschar *log_file_path          = US LOG_FILE_PATH
 802                            "\0<--------------Space to patch log_file_path->";
 803
 804 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 805 are the ones that get put into log_write_selector. They can be used in calls to
 806 log_write() to test for the bit. The options with LX_xxx identifiers have
 807 values greater than 0x80000000 and are put into log_extra_selector (without the
 808 top bit). They are never used in calls to log_write(), but are tested
 809 independently. This separation became necessary when the number of log
 810 selectors was getting close to filling a 32-bit word. */
 811
 812 /* Note that this list must be in alphabetical order. */
 813
 814 bit_table log_options[]        = {
 815   { US"8bitmime",                     LX_8bitmime },
 816   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 817   { US"address_rewrite",              L_address_rewrite },
 818   { US"all",                          L_all },
 819   { US"all_parents",                  L_all_parents },
 820   { US"arguments",                    LX_arguments },
 821   { US"connection_reject",            L_connection_reject },
 822   { US"delay_delivery",               L_delay_delivery },
 823   { US"deliver_time",                 LX_deliver_time },
 824   { US"delivery_size",                LX_delivery_size },
 825   { US"dnslist_defer",                L_dnslist_defer },
 826   { US"etrn",                         L_etrn },
 827   { US"host_lookup_failed",           L_host_lookup_failed },
 828   { US"ident_timeout",                LX_ident_timeout },
 829   { US"incoming_interface",           LX_incoming_interface },
 830   { US"incoming_port",                LX_incoming_port },
 831   { US"lost_incoming_connection",     L_lost_incoming_connection },
 832   { US"outgoing_port",                LX_outgoing_port },
 833   { US"pid",                          LX_pid },
 834 #ifdef EXPERIMENTAL_PROXY
 835   { US"proxy",                        LX_proxy },
 836 #endif
 837   { US"queue_run",                    L_queue_run },
 838   { US"queue_time",                   LX_queue_time },
 839   { US"queue_time_overall",           LX_queue_time_overall },
 840   { US"received_recipients",          LX_received_recipients },
 841   { US"received_sender",              LX_received_sender },
 842   { US"rejected_header",              LX_rejected_header },
 843   { US"rejected_headers",             LX_rejected_header },
 844   { US"retry_defer",                  L_retry_defer },
 845   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 846   { US"sender_on_delivery",           LX_sender_on_delivery },
 847   { US"sender_verify_fail",           LX_sender_verify_fail },
 848   { US"size_reject",                  L_size_reject },
 849   { US"skip_delivery",                L_skip_delivery },
 850   { US"smtp_confirmation",            LX_smtp_confirmation },
 851   { US"smtp_connection",              L_smtp_connection },
 852   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 853   { US"smtp_mailauth",                LX_smtp_mailauth },
 854   { US"smtp_no_mail",                 LX_smtp_no_mail },
 855   { US"smtp_protocol_error",          L_smtp_protocol_error },
 856   { US"smtp_syntax_error",            L_smtp_syntax_error },
 857   { US"subject",                      LX_subject },
 858   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 859   { US"tls_cipher",                   LX_tls_cipher },
 860   { US"tls_peerdn",                   LX_tls_peerdn },
 861   { US"tls_sni",                      LX_tls_sni },
 862   { US"unknown_in_list",              LX_unknown_in_list }
 863 };
 864
 865 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 866 int     log_reject_target      = 0;
 867 uschar *log_selector_string    = NULL;
 868 FILE   *log_stderr             = NULL;
 869 BOOL    log_testing_mode       = FALSE;
 870 BOOL    log_timezone           = FALSE;
 871 unsigned int log_write_selector= L_default;
 872 uschar *login_sender_address   = NULL;
 873 uschar *lookup_dnssec_authenticated = NULL;
 874 int     lookup_open_max        = 25;
 875 uschar *lookup_value           = NULL;
 876
 877 macro_item  *macros            = NULL;
 878 uschar *mailstore_basename     = NULL;
 879 #ifdef WITH_CONTENT_SCAN
 880 uschar *malware_name           = NULL;  /* Virus Name */
 881 #endif
 882 int     max_received_linelength= 0;
 883 int     max_username_length    = 0;
 884 int     message_age            = 0;
 885 uschar *message_body           = NULL;
 886 uschar *message_body_end       = NULL;
 887 BOOL    message_body_newlines  = FALSE;
 888 int     message_body_size      = 0;
 889 int     message_body_visible   = 500;
 890 int     message_ended          = END_NOTSTARTED;
 891 uschar *message_headers        = NULL;
 892 uschar *message_id;
 893 uschar *message_id_domain      = NULL;
 894 uschar *message_id_text        = NULL;
 895 struct timeval message_id_tv   = { 0, 0 };
 896 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 897 uschar *message_id_external;
 898 int     message_linecount      = 0;
 899 BOOL    message_logs           = TRUE;
 900 int     message_size           = 0;
 901 uschar *message_size_limit     = US"50M";
 902 uschar  message_subdir[2]      = { 0, 0 };
 903 uschar *message_reference      = NULL;
 904
 905 /* MIME ACL expandables */
 906 #ifdef WITH_CONTENT_SCAN
 907 int     mime_anomaly_level     = 0;
 908 const uschar *mime_anomaly_text      = NULL;
 909 uschar *mime_boundary          = NULL;
 910 uschar *mime_charset           = NULL;
 911 uschar *mime_content_description = NULL;
 912 uschar *mime_content_disposition = NULL;
 913 uschar *mime_content_id        = NULL;
 914 unsigned int mime_content_size = 0;
 915 uschar *mime_content_transfer_encoding = NULL;
 916 uschar *mime_content_type      = NULL;
 917 uschar *mime_decoded_filename  = NULL;
 918 uschar *mime_filename          = NULL;
 919 int     mime_is_multipart      = 0;
 920 int     mime_is_coverletter    = 0;
 921 int     mime_is_rfc822         = 0;
 922 int     mime_part_count        = -1;
 923 #endif
 924
 925 BOOL    mua_wrapper            = FALSE;
 926
 927 uid_t  *never_users            = NULL;
 928 #ifdef WITH_CONTENT_SCAN
 929 BOOL    no_mbox_unspool        = FALSE;
 930 #endif
 931 BOOL    no_multiline_responses = FALSE;
 932
 933 uid_t   original_euid;
 934 gid_t   originator_gid;
 935 uschar *originator_login       = NULL;
 936 uschar *originator_name        = NULL;
 937 uid_t   originator_uid;
 938 uschar *override_local_interfaces = NULL;
 939 uschar *override_pid_file_path = NULL;
 940
 941 BOOL    parse_allow_group      = FALSE;
 942 BOOL    parse_found_group      = FALSE;
 943 uschar *percent_hack_domains   = NULL;
 944 uschar *pid_file_path          = US PID_FILE_PATH
 945                            "\0<--------------Space to patch pid_file_path->";
 946 BOOL    pipelining_enable      = TRUE;
 947 uschar *pipelining_advertise_hosts = US"*";
 948 BOOL    preserve_message_logs  = FALSE;
 949 uschar *primary_hostname       = NULL;
 950 BOOL    print_topbitchars      = FALSE;
 951 uschar  process_info[PROCESS_INFO_SIZE];
 952 int     process_info_len       = 0;
 953 uschar *process_log_path       = NULL;
 954 BOOL    prod_requires_admin    = TRUE;
 955
 956 #ifdef EXPERIMENTAL_PROXY
 957 uschar *proxy_host_address     = US"";
 958 int     proxy_host_port        = 0;
 959 uschar *proxy_required_hosts   = US"";
 960 BOOL    proxy_session          = FALSE;
 961 BOOL    proxy_session_failed   = FALSE;
 962 uschar *proxy_target_address   = US"";
 963 int     proxy_target_port      = 0;
 964 #endif
 965
 966 uschar *prvscheck_address      = NULL;
 967 uschar *prvscheck_keynum       = NULL;
 968 uschar *prvscheck_result       = NULL;
 969
 970
 971 uschar *qualify_domain_recipient = NULL;
 972 uschar *qualify_domain_sender  = NULL;
 973 BOOL    queue_2stage           = FALSE;
 974 uschar *queue_domains          = NULL;
 975 int     queue_interval         = -1;
 976 BOOL    queue_list_requires_admin = TRUE;
 977 BOOL    queue_only             = FALSE;
 978 uschar *queue_only_file        = NULL;
 979 int     queue_only_load        = -1;
 980 BOOL    queue_only_load_latch  = TRUE;
 981 BOOL    queue_only_override    = TRUE;
 982 BOOL    queue_only_policy      = FALSE;
 983 BOOL    queue_run_first_delivery = FALSE;
 984 BOOL    queue_run_force        = FALSE;
 985 BOOL    queue_run_in_order     = FALSE;
 986 BOOL    queue_run_local        = FALSE;
 987 int     queue_run_max          = 5;
 988 pid_t   queue_run_pid          = (pid_t)0;
 989 int     queue_run_pipe         = -1;
 990 BOOL    queue_running          = FALSE;
 991 BOOL    queue_smtp             = FALSE;
 992 uschar *queue_smtp_domains     = NULL;
 993
 994 unsigned int random_seed       = 0;
 995 tree_node *ratelimiters_cmd    = NULL;
 996 tree_node *ratelimiters_conn   = NULL;
 997 tree_node *ratelimiters_mail   = NULL;
 998 uschar *raw_active_hostname    = NULL;
 999 uschar *raw_sender             = NULL;
1000 uschar **raw_recipients        = NULL;
1001 int     raw_recipients_count   = 0;
1002
1003 int     rcpt_count             = 0;
1004 int     rcpt_fail_count        = 0;
1005 int     rcpt_defer_count       = 0;
1006 gid_t   real_gid;
1007 uid_t   real_uid;
1008 BOOL    really_exim            = TRUE;
1009 BOOL    receive_call_bombout   = FALSE;
1010 int     receive_linecount      = 0;
1011 int     receive_messagecount   = 0;
1012 int     receive_timeout        = 0;
1013 int     received_count         = 0;
1014 uschar *received_for           = NULL;
1015
1016 /*  This is the default text for Received headers generated by Exim. The
1017 date  will be automatically added on the end. */
1018
1019 uschar *received_header_text   = US
1020      "Received: "
1021      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1022      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1023      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1024      "by $primary_hostname "
1025      "${if def:received_protocol {with $received_protocol}} "
1026      #ifdef SUPPORT_TLS
1027      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1028      #endif
1029      "(Exim $version_number)\n\t"
1030      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1031      "id $message_exim_id"
1032      "${if def:received_for {\n\tfor $received_for}}"
1033      "\0<---------------Space to patch received_header_text->";
1034
1035 int     received_headers_max   = 30;
1036 uschar *received_protocol      = NULL;
1037 int     received_time          = 0;
1038 uschar *recipient_data         = NULL;
1039 uschar *recipient_unqualified_hosts = NULL;
1040 uschar *recipient_verify_failure = NULL;
1041 int     recipients_count       = 0;
1042 BOOL    recipients_discarded   = FALSE;
1043 recipient_item  *recipients_list = NULL;
1044 int     recipients_list_max    = 0;
1045 int     recipients_max         = 0;
1046 BOOL    recipients_max_reject  = FALSE;
1047 const pcre *regex_AUTH         = NULL;
1048 const pcre *regex_check_dns_names = NULL;
1049 const pcre *regex_From         = NULL;
1050 const pcre *regex_IGNOREQUOTA  = NULL;
1051 const pcre *regex_PIPELINING   = NULL;
1052 const pcre *regex_SIZE         = NULL;
1053 const pcre *regex_smtp_code    = NULL;
1054 const pcre *regex_ismsgid      = NULL;
1055 #ifdef WHITELIST_D_MACROS
1056 const pcre *regex_whitelisted_macro = NULL;
1057 #endif
1058 #ifdef WITH_CONTENT_SCAN
1059 uschar *regex_match_string     = NULL;
1060 #endif
1061 int     remote_delivery_count  = 0;
1062 int     remote_max_parallel    = 2;
1063 uschar *remote_sort_domains    = NULL;
1064 int     retry_data_expire      = 7*24*60*60;
1065 int     retry_interval_max     = 24*60*60;
1066 int     retry_maximum_timeout  = 0;        /* set from retry config */
1067 retry_config  *retries         = NULL;
1068 uschar *return_path            = NULL;
1069 BOOL    return_path_remove     = TRUE;
1070 int     rewrite_existflags     = 0;
1071 uschar *rfc1413_hosts          = US"*";
1072 int     rfc1413_query_timeout  = 5;
1073 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1074 uid_t   root_gid               = ROOT_GID;
1075 uid_t   root_uid               = ROOT_UID;
1076
1077 router_instance  *routers  = NULL;
1078 router_instance  router_defaults = {
1079     NULL,                      /* chain pointer */
1080     NULL,                      /* name */
1081     NULL,                      /* info */
1082     NULL,                      /* private options block pointer */
1083     NULL,                      /* driver name */
1084
1085     NULL,                      /* address_data */
1086 #ifdef EXPERIMENTAL_BRIGHTMAIL
1087     NULL,                      /* bmi_rule */
1088 #endif
1089     NULL,                      /* cannot_route_message */
1090     NULL,                      /* condition */
1091     NULL,                      /* current_directory */
1092     NULL,                      /* debug_string */
1093     NULL,                      /* domains */
1094     NULL,                      /* errors_to */
1095     NULL,                      /* expand_gid */
1096     NULL,                      /* expand_uid */
1097     NULL,                      /* expand_more */
1098     NULL,                      /* expand_unseen */
1099     NULL,                      /* extra_headers */
1100     NULL,                      /* fallback_hosts */
1101     NULL,                      /* home_directory */
1102     NULL,                      /* ignore_target_hosts */
1103     NULL,                      /* local_parts */
1104     NULL,                      /* pass_router_name */
1105     NULL,                      /* prefix */
1106     NULL,                      /* redirect_router_name */
1107     NULL,                      /* remove_headers */
1108     NULL,                      /* require_files */
1109     NULL,                      /* router_home_directory */
1110     US"freeze",                /* self */
1111     NULL,                      /* senders */
1112     NULL,                      /* suffix */
1113     NULL,                      /* translate_ip_address */
1114     NULL,                      /* transport_name */
1115
1116     TRUE,                      /* address_test */
1117 #ifdef EXPERIMENTAL_BRIGHTMAIL
1118     FALSE,                     /* bmi_deliver_alternate */
1119     FALSE,                     /* bmi_deliver_default */
1120     FALSE,                     /* bmi_dont_deliver */
1121 #endif
1122     TRUE,                      /* expn */
1123     FALSE,                     /* caseful_local_part */
1124     FALSE,                     /* check_local_user */
1125     FALSE,                     /* disable_logging */
1126     FALSE,                     /* fail_verify_recipient */
1127     FALSE,                     /* fail_verify_sender */
1128     FALSE,                     /* gid_set */
1129     FALSE,                     /* initgroups */
1130     TRUE_UNSET,                /* log_as_local */
1131     TRUE,                      /* more */
1132     FALSE,                     /* pass_on_timeout */
1133     FALSE,                     /* prefix_optional */
1134     TRUE,                      /* repeat_use */
1135     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1136     FALSE,                     /* same_domain_copy_routing */
1137     FALSE,                     /* self_rewrite */
1138     FALSE,                     /* suffix_optional */
1139     FALSE,                     /* verify_only */
1140     TRUE,                      /* verify_recipient */
1141     TRUE,                      /* verify_sender */
1142     FALSE,                     /* uid_set */
1143     FALSE,                     /* unseen */
1144 #ifdef EXPERIMENTAL_DSN
1145     FALSE,                     /* dsn_lasthop */
1146 #endif
1147
1148     self_freeze,               /* self_code */
1149     (uid_t)(-1),               /* uid */
1150     (gid_t)(-1),               /* gid */
1151
1152     NULL,                      /* fallback_hostlist */
1153     NULL,                      /* transport instance */
1154     NULL,                      /* pass_router */
1155     NULL                       /* redirect_router */
1156 };
1157
1158 uschar *router_name            = NULL;
1159
1160 ip_address_item *running_interfaces = NULL;
1161 BOOL    running_in_test_harness = FALSE;
1162
1163 /* This is a weird one. The following string gets patched in the binary by the
1164 script that sets up a copy of Exim for running in the test harness. It seems
1165 that compilers are now clever, and share constant strings if they can.
1166 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1167 make use of the end of this string in order to save space. So the patching then
1168 wrecks this. We defeat this optimization by adding some additional characters
1169 onto the end of the string. */
1170
1171 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1172
1173 int     runrc                  = 0;
1174
1175 uschar *search_error_message   = NULL;
1176 BOOL    search_find_defer      = FALSE;
1177 uschar *self_hostname          = NULL;
1178 uschar *sender_address         = NULL;
1179 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1180 uschar *sender_address_data    = NULL;
1181 BOOL    sender_address_forced  = FALSE;
1182 uschar *sender_address_unrewritten = NULL;
1183 uschar *sender_data            = NULL;
1184 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1185 uschar *sender_fullhost        = NULL;
1186 uschar *sender_helo_name       = NULL;
1187 uschar **sender_host_aliases   = &no_aliases;
1188 uschar *sender_host_address    = NULL;
1189 uschar *sender_host_authenticated = NULL;
1190 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1191 BOOL    sender_host_dnssec     = FALSE;
1192 uschar *sender_host_name       = NULL;
1193 int     sender_host_port       = 0;
1194 BOOL    sender_host_notsocket  = FALSE;
1195 BOOL    sender_host_unknown    = FALSE;
1196 uschar *sender_ident           = NULL;
1197 BOOL    sender_local           = FALSE;
1198 BOOL    sender_name_forced     = FALSE;
1199 uschar *sender_rate            = NULL;
1200 uschar *sender_rate_limit      = NULL;
1201 uschar *sender_rate_period     = NULL;
1202 uschar *sender_rcvhost         = NULL;
1203 BOOL    sender_set_untrusted   = FALSE;
1204 uschar *sender_unqualified_hosts = NULL;
1205 uschar *sender_verify_failure = NULL;
1206 address_item *sender_verified_list  = NULL;
1207 address_item *sender_verified_failed = NULL;
1208 int     sender_verified_rc     = -1;
1209 BOOL    sender_verified_responded = FALSE;
1210 uschar *sending_ip_address     = NULL;
1211 int     sending_port           = -1;
1212 SIGNAL_BOOL sigalrm_seen       = FALSE;
1213 uschar **sighup_argv           = NULL;
1214 int     smtp_accept_count      = 0;
1215 BOOL    smtp_accept_keepalive  = TRUE;
1216 int     smtp_accept_max        = 20;
1217 int     smtp_accept_max_nonmail= 10;
1218 uschar *smtp_accept_max_nonmail_hosts = US"*";
1219 int     smtp_accept_max_per_connection = 1000;
1220 uschar *smtp_accept_max_per_host = NULL;
1221 int     smtp_accept_queue      = 0;
1222 int     smtp_accept_queue_per_connection = 10;
1223 int     smtp_accept_reserve    = 0;
1224 uschar *smtp_active_hostname   = NULL;
1225 BOOL    smtp_authenticated     = FALSE;
1226 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1227                              "Exim $version_number $tod_full"
1228                              "\0<---------------Space to patch smtp_banner->";
1229 BOOL    smtp_batched_input     = FALSE;
1230 BOOL    smtp_check_spool_space = TRUE;
1231 int     smtp_ch_index          = 0;
1232 uschar *smtp_cmd_argument      = NULL;
1233 uschar *smtp_cmd_buffer        = NULL;
1234 time_t  smtp_connection_start  = 0;
1235 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1236 int     smtp_connect_backlog   = 20;
1237 double  smtp_delay_mail        = 0.0;
1238 double  smtp_delay_rcpt        = 0.0;
1239 BOOL    smtp_enforce_sync      = TRUE;
1240 FILE   *smtp_in                = NULL;
1241 BOOL    smtp_input             = FALSE;
1242 int     smtp_load_reserve      = -1;
1243 int     smtp_mailcmd_count     = 0;
1244 FILE   *smtp_out               = NULL;
1245 uschar *smtp_etrn_command      = NULL;
1246 BOOL    smtp_etrn_serialize    = TRUE;
1247 int     smtp_max_synprot_errors= 3;
1248 int     smtp_max_unknown_commands = 3;
1249 uschar *smtp_notquit_reason    = NULL;
1250 uschar *smtp_ratelimit_hosts   = NULL;
1251 uschar *smtp_ratelimit_mail    = NULL;
1252 uschar *smtp_ratelimit_rcpt    = NULL;
1253 uschar *smtp_read_error        = US"";
1254 int     smtp_receive_timeout   = 5*60;
1255 uschar *smtp_reserve_hosts     = NULL;
1256 BOOL    smtp_return_error_details = FALSE;
1257 int     smtp_rlm_base          = 0;
1258 double  smtp_rlm_factor        = 0.0;
1259 int     smtp_rlm_limit         = 0;
1260 int     smtp_rlm_threshold     = INT_MAX;
1261 int     smtp_rlr_base          = 0;
1262 double  smtp_rlr_factor        = 0.0;
1263 int     smtp_rlr_limit         = 0;
1264 int     smtp_rlr_threshold     = INT_MAX;
1265 BOOL    smtp_use_pipelining    = FALSE;
1266 BOOL    smtp_use_size          = FALSE;
1267
1268 #ifdef WITH_CONTENT_SCAN
1269 uschar *spamd_address          = US"127.0.0.1 783";
1270 uschar *spam_bar               = NULL;
1271 uschar *spam_report            = NULL;
1272 uschar *spam_score             = NULL;
1273 uschar *spam_score_int         = NULL;
1274 #endif
1275 #ifdef EXPERIMENTAL_SPF
1276 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1277 uschar *spf_header_comment     = NULL;
1278 uschar *spf_received           = NULL;
1279 uschar *spf_result             = NULL;
1280 uschar *spf_smtp_comment       = NULL;
1281 #endif
1282
1283 BOOL    split_spool_directory  = FALSE;
1284 uschar *spool_directory        = US SPOOL_DIRECTORY
1285                            "\0<--------------Space to patch spool_directory->";
1286 #ifdef EXPERIMENTAL_SRS
1287 uschar *srs_config             = NULL;
1288 uschar *srs_db_address         = NULL;
1289 uschar *srs_db_key             = NULL;
1290 int     srs_hashlength         = 6;
1291 int     srs_hashmin            = -1;
1292 int     srs_maxage             = 31;
1293 uschar *srs_orig_recipient     = NULL;
1294 uschar *srs_orig_sender        = NULL;
1295 uschar *srs_recipient          = NULL;
1296 uschar *srs_secrets            = NULL;
1297 uschar *srs_status             = NULL;
1298 BOOL    srs_usehash            = TRUE;
1299 BOOL    srs_usetimestamp       = TRUE;
1300 #endif
1301 BOOL    strict_acl_vars        = FALSE;
1302 int     string_datestamp_offset= -1;
1303 int     string_datestamp_length= 0;
1304 int     string_datestamp_type  = -1;
1305 BOOL    strip_excess_angle_brackets = FALSE;
1306 BOOL    strip_trailing_dot     = FALSE;
1307 uschar *submission_domain      = NULL;
1308 BOOL    submission_mode        = FALSE;
1309 uschar *submission_name        = NULL;
1310 BOOL    suppress_local_fixups  = FALSE;
1311 BOOL    suppress_local_fixups_default = FALSE;
1312 BOOL    synchronous_delivery   = FALSE;
1313 BOOL    syslog_duplication     = TRUE;
1314 int     syslog_facility        = LOG_MAIL;
1315 uschar *syslog_processname     = US"exim";
1316 BOOL    syslog_timestamp       = TRUE;
1317 uschar *system_filter          = NULL;
1318
1319 uschar *system_filter_directory_transport = NULL;
1320 uschar *system_filter_file_transport = NULL;
1321 uschar *system_filter_pipe_transport = NULL;
1322 uschar *system_filter_reply_transport = NULL;
1323
1324 gid_t   system_filter_gid      = 0;
1325 BOOL    system_filter_gid_set  = FALSE;
1326 uid_t   system_filter_uid      = (uid_t)-1;
1327 BOOL    system_filter_uid_set  = FALSE;
1328 BOOL    system_filtering       = FALSE;
1329
1330 BOOL    tcp_nodelay            = TRUE;
1331 #ifdef USE_TCP_WRAPPERS
1332 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1333 #endif
1334 int     test_harness_load_avg  = 0;
1335 int     thismessage_size_limit = 0;
1336 int     timeout_frozen_after   = 0;
1337 BOOL    timestamps_utc         = FALSE;
1338
1339 #ifdef EXPERIMENTAL_EVENT
1340 uschar *event_action             = NULL;        /* expansion for delivery events */
1341 uschar *event_data               = NULL;        /* auxilary data variable for event */
1342 int     event_defer_errno        = 0;
1343 uschar *event_name               = NULL;        /* event name variable */
1344 #endif
1345
1346 transport_instance  *transports = NULL;
1347
1348 transport_instance  transport_defaults = {
1349     NULL,                     /* chain pointer */
1350     NULL,                     /* name */
1351     NULL,                     /* info */
1352     NULL,                     /* private options block pointer */
1353     NULL,                     /* driver name */
1354     NULL,                     /* setup entry point */
1355     1,                        /* batch_max */
1356     NULL,                     /* batch_id */
1357     NULL,                     /* home_dir */
1358     NULL,                     /* current_dir */
1359     TRUE,                     /* multi-domain */
1360     FALSE,                    /* overrides_hosts */
1361     100,                      /* max_addresses */
1362     500,                      /* connection_max_messages */
1363     FALSE,                    /* deliver_as_creator */
1364     FALSE,                    /* disable_logging */
1365     FALSE,                    /* initgroups */
1366     FALSE,                    /* uid_set */
1367     FALSE,                    /* gid_set */
1368     (uid_t)(-1),              /* uid */
1369     (gid_t)(-1),              /* gid */
1370     NULL,                     /* expand_uid */
1371     NULL,                     /* expand_gid */
1372     NULL,                     /* warn_message */
1373     NULL,                     /* shadow */
1374     NULL,                     /* shadow_condition */
1375     NULL,                     /* filter_command */
1376     NULL,                     /* add_headers */
1377     NULL,                     /* remove_headers */
1378     NULL,                     /* return_path */
1379     NULL,                     /* debug_string */
1380     NULL,                     /* message_size_limit */
1381     NULL,                     /* headers_rewrite */
1382     NULL,                     /* rewrite_rules */
1383     0,                        /* rewrite_existflags */
1384     300,                      /* filter_timeout */
1385     FALSE,                    /* body_only */
1386     FALSE,                    /* delivery_date_add */
1387     FALSE,                    /* envelope_to_add */
1388     FALSE,                    /* headers_only */
1389     FALSE,                    /* rcpt_include_affixes */
1390     FALSE,                    /* return_path_add */
1391     FALSE,                    /* return_output */
1392     FALSE,                    /* return_fail_output */
1393     FALSE,                    /* log_output */
1394     FALSE,                    /* log_fail_output */
1395     FALSE,                    /* log_defer_output */
1396     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1397                                  1 nor 0 so can detect unset */
1398 #ifdef EXPERIMENTAL_EVENT
1399    ,NULL                      /* event_action */
1400 #endif
1401 };
1402
1403 int     transport_count;
1404 uschar *transport_name          = NULL;
1405 int     transport_newlines;
1406 uschar **transport_filter_argv  = NULL;
1407 int     transport_filter_timeout;
1408 BOOL    transport_filter_timed_out = FALSE;
1409 int     transport_write_timeout= 0;
1410
1411 tree_node  *tree_dns_fails     = NULL;
1412 tree_node  *tree_duplicates    = NULL;
1413 tree_node  *tree_nonrecipients = NULL;
1414 tree_node  *tree_unusable      = NULL;
1415
1416 BOOL    trusted_caller         = FALSE;
1417 BOOL    trusted_config         = TRUE;
1418 gid_t  *trusted_groups         = NULL;
1419 uid_t  *trusted_users          = NULL;
1420 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1421
1422 uschar *unknown_login          = NULL;
1423 uschar *unknown_username       = NULL;
1424 uschar *untrusted_set_sender   = NULL;
1425
1426 /*  A regex for matching a "From_" line in an incoming message, in the form
1427
1428     From ph10 Fri Jan  5 12:35 GMT 1996
1429
1430 which  the "mail" commands send to the MTA (undocumented, of course), or in
1431 the  form
1432
1433     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1434
1435 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1436 Because  of variations in time formats, just match up to the minutes. That
1437 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1438 so  just require one digit for hours and minutes. The weekday is also absent
1439 in  some forms. */
1440
1441 uschar *uucp_from_pattern      = US
1442    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1443    "(?:"                                          /* Non-extracting bracket */
1444    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1445    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1446    ")"                                            /* End alternation */
1447    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1448
1449 uschar *uucp_from_sender       = US"$1";
1450
1451 uschar *verify_mode            = NULL;
1452 uschar *version_copyright      =
1453  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1454    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1455 uschar *version_date           = US"?";
1456 uschar *version_cnumber        = US"????";
1457 uschar *version_string         = US"?";
1458
1459 uschar *warn_message_file      = NULL;
1460 int     warning_count          = 0;
1461 uschar *warnmsg_delay          = NULL;
1462 uschar *warnmsg_recipients     = NULL;
1463 BOOL    write_rejectlog        = TRUE;
1464
1465
1466 /*  End of globals.c */