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    = US"*";
 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 #else   /*!SUPPORT_TLS*/
 171 uschar *tls_advertise_hosts    = NULL;
 172 #endif
 173
 174 #ifndef DISABLE_PRDR
 175 /* Per Recipient Data Response variables */
 176 BOOL    prdr_enable            = FALSE;
 177 BOOL    prdr_requested         = FALSE;
 178 const pcre *regex_PRDR         = NULL;
 179 #endif
 180
 181 #ifdef EXPERIMENTAL_INTERNATIONAL
 182 const pcre *regex_UTF8         = NULL;
 183 #endif
 184
 185 /* Input-reading functions for messages, so we can use special ones for
 186 incoming TCP/IP. The defaults use stdin. We never need these for any
 187 stand-alone tests. */
 188
 189 #ifndef STAND_ALONE
 190 int (*receive_getc)(void)      = stdin_getc;
 191 int (*receive_ungetc)(int)     = stdin_ungetc;
 192 int (*receive_feof)(void)      = stdin_feof;
 193 int (*receive_ferror)(void)    = stdin_ferror;
 194 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 195 #endif
 196
 197
 198 /* List of per-address expansion variables for clearing and saving/restoring
 199 when verifying one address while routing/verifying another. We have to have
 200 the size explicit, because it is referenced from more than one module. */
 201
 202 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 203   CUSS &deliver_address_data,
 204   CUSS &deliver_domain,
 205   CUSS &deliver_domain_data,
 206   CUSS &deliver_domain_orig,
 207   CUSS &deliver_domain_parent,
 208   CUSS &deliver_localpart,
 209   CUSS &deliver_localpart_data,
 210   CUSS &deliver_localpart_orig,
 211   CUSS &deliver_localpart_parent,
 212   CUSS &deliver_localpart_prefix,
 213   CUSS &deliver_localpart_suffix,
 214   CUSS (uschar **)(&deliver_recipients),
 215   CUSS &deliver_host,
 216   CUSS &deliver_home,
 217   CUSS &address_file,
 218   CUSS &address_pipe,
 219   CUSS &self_hostname,
 220   NULL };
 221
 222 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 223
 224 /* General global variables */
 225
 226 header_line *acl_added_headers = NULL;
 227 tree_node *acl_anchor          = NULL;
 228 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 229                                   NULL, NULL, NULL, NULL};
 230 int     acl_narg               = 0;
 231
 232 uschar *acl_not_smtp           = NULL;
 233 #ifdef WITH_CONTENT_SCAN
 234 uschar *acl_not_smtp_mime      = NULL;
 235 #endif
 236 uschar *acl_not_smtp_start     = NULL;
 237 uschar *acl_removed_headers    = NULL;
 238 uschar *acl_smtp_auth          = NULL;
 239 uschar *acl_smtp_connect       = NULL;
 240 uschar *acl_smtp_data          = NULL;
 241 #ifndef DISABLE_PRDR
 242 uschar *acl_smtp_data_prdr     = US"accept";
 243 #endif
 244 #ifndef DISABLE_DKIM
 245 uschar *acl_smtp_dkim          = NULL;
 246 #endif
 247 uschar *acl_smtp_etrn          = NULL;
 248 uschar *acl_smtp_expn          = NULL;
 249 uschar *acl_smtp_helo          = NULL;
 250 uschar *acl_smtp_mail          = NULL;
 251 uschar *acl_smtp_mailauth      = NULL;
 252 #ifdef WITH_CONTENT_SCAN
 253 uschar *acl_smtp_mime          = NULL;
 254 #endif
 255 uschar *acl_smtp_notquit       = NULL;
 256 uschar *acl_smtp_predata       = NULL;
 257 uschar *acl_smtp_quit          = NULL;
 258 uschar *acl_smtp_rcpt          = NULL;
 259 uschar *acl_smtp_starttls      = NULL;
 260 uschar *acl_smtp_vrfy          = NULL;
 261
 262 BOOL    acl_temp_details       = FALSE;
 263 tree_node *acl_var_c           = NULL;
 264 tree_node *acl_var_m           = NULL;
 265 uschar *acl_verify_message     = NULL;
 266 string_item *acl_warn_logged   = NULL;
 267
 268 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 269 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 270
 271 uschar *acl_wherenames[]       = { US"RCPT",
 272                                    US"MAIL",
 273                                    US"PREDATA",
 274                                    US"MIME",
 275                                    US"DKIM",
 276                                    US"DATA",
 277 #ifndef DISABLE_PRDR
 278                                    US"PRDR",
 279 #endif
 280                                    US"non-SMTP",
 281                                    US"AUTH",
 282                                    US"connection",
 283                                    US"ETRN",
 284                                    US"EXPN",
 285                                    US"EHLO or HELO",
 286                                    US"MAILAUTH",
 287                                    US"non-SMTP-start",
 288                                    US"NOTQUIT",
 289                                    US"QUIT",
 290                                    US"STARTTLS",
 291                                    US"VRFY",
 292                                    US"delivery",
 293                                    US"unknown"
 294                                  };
 295
 296 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 297                                    US"550",     /* MAIL */
 298                                    US"550",     /* PREDATA */
 299                                    US"550",     /* MIME */
 300                                    US"550",     /* DKIM */
 301                                    US"550",     /* DATA */
 302 #ifndef DISABLE_PRDR
 303                                    US"550",    /* RCPT PRDR */
 304 #endif
 305                                    US"0",       /* not SMTP; not relevant */
 306                                    US"503",     /* AUTH */
 307                                    US"550",     /* connect */
 308                                    US"458",     /* ETRN */
 309                                    US"550",     /* EXPN */
 310                                    US"550",     /* HELO/EHLO */
 311                                    US"0",       /* MAILAUTH; not relevant */
 312                                    US"0",       /* not SMTP; not relevant */
 313                                    US"0",       /* NOTQUIT; not relevant */
 314                                    US"0",       /* QUIT; not relevant */
 315                                    US"550",     /* STARTTLS */
 316                                    US"252",     /* VRFY */
 317                                    US"0",       /* delivery; not relevant */
 318                                    US"0"        /* unknown; not relevant */
 319                                  };
 320
 321 BOOL    active_local_from_check = FALSE;
 322 BOOL    active_local_sender_retain = FALSE;
 323 int     body_8bitmime = 0;
 324 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 325 address_item  *addr_duplicate  = NULL;
 326
 327 address_item address_defaults = {
 328   NULL,                 /* next */
 329   NULL,                 /* parent */
 330   NULL,                 /* first */
 331   NULL,                 /* dupof */
 332   NULL,                 /* start_router */
 333   NULL,                 /* router */
 334   NULL,                 /* transport */
 335   NULL,                 /* host_list */
 336   NULL,                 /* host_used */
 337   NULL,                 /* fallback_hosts */
 338   NULL,                 /* reply */
 339   NULL,                 /* retries */
 340   NULL,                 /* address */
 341   NULL,                 /* unique */
 342   NULL,                 /* cc_local_part */
 343   NULL,                 /* lc_local_part */
 344   NULL,                 /* local_part */
 345   NULL,                 /* prefix */
 346   NULL,                 /* suffix */
 347   NULL,                 /* domain */
 348   NULL,                 /* address_retry_key */
 349   NULL,                 /* domain_retry_key */
 350   NULL,                 /* current_dir */
 351   NULL,                 /* home_dir */
 352   NULL,                 /* message */
 353   NULL,                 /* user_message */
 354   NULL,                 /* onetime_parent */
 355   NULL,                 /* pipe_expandn */
 356   NULL,                 /* return_filename */
 357   NULL,                 /* self_hostname */
 358   NULL,                 /* shadow_message */
 359 #ifdef SUPPORT_TLS
 360   NULL,                 /* cipher */
 361   NULL,                 /* ourcert */
 362   NULL,                 /* peercert */
 363   NULL,                 /* peerdn */
 364   OCSP_NOT_REQ,         /* ocsp */
 365 #endif
 366 #ifdef EXPERIMENTAL_DSN_INFO
 367   NULL,                 /* smtp_greeting */
 368   NULL,                 /* helo_response */
 369 #endif
 370   NULL,                 /* authenticator */
 371   NULL,                 /* auth_id */
 372   NULL,                 /* auth_sndr */
 373   NULL,                 /* dsn_orcpt */
 374   0,                    /* dsn_flags */
 375   0,                    /* dsn_aware */
 376   (uid_t)(-1),          /* uid */
 377   (gid_t)(-1),          /* gid */
 378   0,                    /* flags */
 379   { 0 },                /* domain_cache - any larger array should be zeroed */
 380   { 0 },                /* localpart_cache - ditto */
 381   -1,                   /* mode */
 382   0,                    /* more_errno */
 383   ERRNO_UNKNOWNERROR,   /* basic_errno */
 384   0,                    /* child_count */
 385   -1,                   /* return_file */
 386   SPECIAL_NONE,         /* special_action */
 387   DEFER,                /* transport_return */
 388   {                     /* fields that are propagated to children */
 389     NULL,               /* address_data */
 390     NULL,               /* domain_data */
 391     NULL,               /* localpart_data */
 392     NULL,               /* errors_address */
 393     NULL,               /* extra_headers */
 394     NULL,               /* remove_headers */
 395 #ifdef EXPERIMENTAL_SRS
 396     NULL,               /* srs_sender */
 397 #endif
 398 #ifdef EXPERIMENTAL_INTERNATIONAL
 399     FALSE,              /* utf8 */
 400 #endif
 401   }
 402 };
 403
 404 uschar *address_file           = NULL;
 405 uschar *address_pipe           = NULL;
 406 BOOL    address_test_mode      = FALSE;
 407 tree_node *addresslist_anchor  = NULL;
 408 int     addresslist_count      = 0;
 409 gid_t  *admin_groups           = NULL;
 410 BOOL    admin_user             = FALSE;
 411 BOOL    allow_auth_unadvertised= FALSE;
 412 BOOL    allow_domain_literals  = FALSE;
 413 BOOL    allow_mx_to_ip         = FALSE;
 414 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 415 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 416 BOOL    allow_utf8_domains     = FALSE;
 417 uschar *authenticated_fail_id  = NULL;
 418 uschar *authenticated_id       = NULL;
 419 uschar *authenticated_sender   = NULL;
 420 BOOL    authentication_failed  = FALSE;
 421 auth_instance  *auths          = NULL;
 422 uschar *auth_advertise_hosts   = US"*";
 423 auth_instance auth_defaults    = {
 424     NULL,                      /* chain pointer */
 425     NULL,                      /* name */
 426     NULL,                      /* info */
 427     NULL,                      /* private options block pointer */
 428     NULL,                      /* driver_name */
 429     NULL,                      /* advertise_condition */
 430     NULL,                      /* client_condition */
 431     NULL,                      /* public_name */
 432     NULL,                      /* set_id */
 433     NULL,                      /* set_client_id */
 434     NULL,                      /* server_mail_auth_condition */
 435     NULL,                      /* server_debug_string */
 436     NULL,                      /* server_condition */
 437     FALSE,                     /* client */
 438     FALSE,                     /* server */
 439     FALSE                      /* advertised */
 440 };
 441
 442 uschar *auth_defer_msg         = US"reason not recorded";
 443 uschar *auth_defer_user_msg    = US"";
 444 uschar *auth_vars[AUTH_VARS];
 445 int     auto_thaw              = 0;
 446 #ifdef WITH_CONTENT_SCAN
 447 BOOL    av_failed              = FALSE;
 448 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 449 #endif
 450
 451 BOOL    background_daemon      = TRUE;
 452
 453 #if BASE_62 == 62
 454 uschar *base62_chars=
 455     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 456 #else
 457 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 458 #endif
 459
 460 uschar *bi_command             = NULL;
 461 uschar *big_buffer             = NULL;
 462 int     big_buffer_size        = BIG_BUFFER_SIZE;
 463 #ifdef EXPERIMENTAL_BRIGHTMAIL
 464 uschar *bmi_alt_location       = NULL;
 465 uschar *bmi_base64_tracker_verdict = NULL;
 466 uschar *bmi_base64_verdict     = NULL;
 467 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 468 int     bmi_deliver            = 1;
 469 int     bmi_run                = 0;
 470 uschar *bmi_verdicts           = NULL;
 471 #endif
 472 int     body_linecount         = 0;
 473 int     body_zerocount         = 0;
 474 uschar *bounce_message_file    = NULL;
 475 uschar *bounce_message_text    = NULL;
 476 uschar *bounce_recipient       = NULL;
 477 BOOL    bounce_return_body     = TRUE;
 478 BOOL    bounce_return_message  = TRUE;
 479 int     bounce_return_size_limit = 100*1024;
 480 uschar *bounce_sender_authentication = NULL;
 481 int     bsmtp_transaction_linecount = 0;
 482
 483 uschar *callout_address        = NULL;
 484 int     callout_cache_domain_positive_expire = 7*24*60*60;
 485 int     callout_cache_domain_negative_expire = 3*60*60;
 486 int     callout_cache_positive_expire = 24*60*60;
 487 int     callout_cache_negative_expire = 2*60*60;
 488 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 489 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 490 int     check_log_inodes       = 0;
 491 int     check_log_space        = 0;
 492 BOOL    check_rfc2047_length   = TRUE;
 493 int     check_spool_inodes     = 0;
 494 int     check_spool_space      = 0;
 495 uschar  *client_authenticator  = NULL;
 496 uschar  *client_authenticated_id = NULL;
 497 uschar  *client_authenticated_sender = NULL;
 498 int     clmacro_count          = 0;
 499 uschar *clmacros[MAX_CLMACROS];
 500 BOOL    config_changed         = FALSE;
 501 FILE   *config_file            = NULL;
 502 uschar *config_filename        = NULL;
 503 int     config_lineno          = 0;
 504 #ifdef CONFIGURE_GROUP
 505 gid_t   config_gid             = CONFIGURE_GROUP;
 506 #endif
 507 uschar *config_main_filelist   = US CONFIGURE_FILE
 508                          "\0<-----------Space to patch configure_filename->";
 509 uschar *config_main_filename   = NULL;
 510 uschar *config_main_directory  = NULL;
 511
 512 #ifdef CONFIGURE_OWNER
 513 uid_t   config_uid             = CONFIGURE_OWNER;
 514 #endif
 515
 516 int     connection_max_messages= -1;
 517 uschar *continue_hostname      = NULL;
 518 uschar *continue_host_address  = NULL;
 519 BOOL    continue_more          = FALSE;
 520 int     continue_sequence      = 1;
 521 uschar *continue_transport     = NULL;
 522
 523 uschar *csa_status             = NULL;
 524 cut_t   cutthrough = {
 525   FALSE,                                /* delivery: when to attempt */
 526   -1,                                   /* fd: open connection */
 527   0,                                    /* nrcpt: number of addresses */
 528 };
 529
 530 BOOL    daemon_listen          = FALSE;
 531 uschar *daemon_smtp_port       = US"smtp";
 532 int     daemon_startup_retries = 9;
 533 int     daemon_startup_sleep   = 30;
 534
 535 #ifdef EXPERIMENTAL_DCC
 536 BOOL    dcc_direct_add_header  = FALSE;
 537 uschar *dcc_header             = NULL;
 538 uschar *dcc_result             = NULL;
 539 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 540 uschar *dccifd_options         = US"header";
 541 #endif
 542
 543 BOOL    debug_daemon           = FALSE;
 544 int     debug_fd               = -1;
 545 FILE   *debug_file             = NULL;
 546 int     debug_notall[]         = {
 547   Di_memory,
 548   -1
 549 };
 550 bit_table debug_options[]      = { /* must be in alphabetical order */
 551   BIT_TABLE(D, acl),
 552   BIT_TABLE(D, all),
 553   BIT_TABLE(D, auth),
 554   BIT_TABLE(D, deliver),
 555   BIT_TABLE(D, dns),
 556   BIT_TABLE(D, dnsbl),
 557   BIT_TABLE(D, exec),
 558   BIT_TABLE(D, expand),
 559   BIT_TABLE(D, filter),
 560   BIT_TABLE(D, hints_lookup),
 561   BIT_TABLE(D, host_lookup),
 562   BIT_TABLE(D, ident),
 563   BIT_TABLE(D, interface),
 564   BIT_TABLE(D, lists),
 565   BIT_TABLE(D, load),
 566   BIT_TABLE(D, local_scan),
 567   BIT_TABLE(D, lookup),
 568   BIT_TABLE(D, memory),
 569   BIT_TABLE(D, pid),
 570   BIT_TABLE(D, process_info),
 571   BIT_TABLE(D, queue_run),
 572   BIT_TABLE(D, receive),
 573   BIT_TABLE(D, resolver),
 574   BIT_TABLE(D, retry),
 575   BIT_TABLE(D, rewrite),
 576   BIT_TABLE(D, route),
 577   BIT_TABLE(D, timestamp),
 578   BIT_TABLE(D, tls),
 579   BIT_TABLE(D, transport),
 580   BIT_TABLE(D, uid),
 581   BIT_TABLE(D, verify),
 582 };
 583 int     debug_options_count    = nelem(debug_options);
 584
 585 unsigned int debug_selector    = 0;
 586 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 587 uschar *delay_warning_condition=
 588   US"${if or {"
 589             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 590             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 591             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 592             "} {no}{yes}}";
 593 BOOL    delivery_date_remove   = TRUE;
 594 uschar *deliver_address_data   = NULL;
 595 int     deliver_datafile       = -1;
 596 const uschar *deliver_domain   = NULL;
 597 uschar *deliver_domain_data    = NULL;
 598 const uschar *deliver_domain_orig = NULL;
 599 const uschar *deliver_domain_parent = NULL;
 600 BOOL    deliver_drop_privilege = FALSE;
 601 BOOL    deliver_firsttime      = FALSE;
 602 BOOL    deliver_force          = FALSE;
 603 BOOL    deliver_freeze         = FALSE;
 604 time_t  deliver_frozen_at      = 0;
 605 uschar *deliver_home           = NULL;
 606 const uschar *deliver_host     = NULL;
 607 const uschar *deliver_host_address = NULL;
 608 int     deliver_host_port      = 0;
 609 uschar *deliver_in_buffer      = NULL;
 610 ino_t   deliver_inode          = 0;
 611 uschar *deliver_localpart      = NULL;
 612 uschar *deliver_localpart_data = NULL;
 613 uschar *deliver_localpart_orig = NULL;
 614 uschar *deliver_localpart_parent = NULL;
 615 uschar *deliver_localpart_prefix = NULL;
 616 uschar *deliver_localpart_suffix = NULL;
 617 BOOL    deliver_force_thaw     = FALSE;
 618 BOOL    deliver_manual_thaw    = FALSE;
 619 uschar *deliver_out_buffer     = NULL;
 620 int     deliver_queue_load_max = -1;
 621 address_item  *deliver_recipients = NULL;
 622 uschar *deliver_selectstring   = NULL;
 623 BOOL    deliver_selectstring_regex = FALSE;
 624 uschar *deliver_selectstring_sender = NULL;
 625 BOOL    deliver_selectstring_sender_regex = FALSE;
 626 #ifdef WITH_OLD_DEMIME
 627 int     demime_errorlevel      = 0;
 628 int     demime_ok              = 0;
 629 uschar *demime_reason          = NULL;
 630 #endif
 631 BOOL    disable_callout_flush  = FALSE;
 632 BOOL    disable_delay_flush    = FALSE;
 633 #ifdef ENABLE_DISABLE_FSYNC
 634 BOOL    disable_fsync          = FALSE;
 635 #endif
 636 BOOL    disable_ipv6           = FALSE;
 637 BOOL    disable_logging        = FALSE;
 638
 639 #ifndef DISABLE_DKIM
 640 uschar *dkim_cur_signer          = NULL;
 641 uschar *dkim_signers             = NULL;
 642 uschar *dkim_signing_domain      = NULL;
 643 uschar *dkim_signing_selector    = NULL;
 644 uschar *dkim_verify_signers      = US"$dkim_signers";
 645 BOOL    dkim_collect_input       = FALSE;
 646 BOOL    dkim_disable_verify      = FALSE;
 647 #endif
 648 #ifdef EXPERIMENTAL_DMARC
 649 BOOL    dmarc_has_been_checked  = FALSE;
 650 uschar *dmarc_ar_header         = NULL;
 651 uschar *dmarc_domain_policy     = NULL;
 652 uschar *dmarc_forensic_sender   = NULL;
 653 uschar *dmarc_history_file      = NULL;
 654 uschar *dmarc_status            = NULL;
 655 uschar *dmarc_status_text       = NULL;
 656 uschar *dmarc_tld_file          = NULL;
 657 uschar *dmarc_used_domain       = NULL;
 658 BOOL    dmarc_disable_verify    = FALSE;
 659 BOOL    dmarc_enable_forensic   = FALSE;
 660 #endif
 661
 662 uschar *dns_again_means_nonexist = NULL;
 663 int     dns_csa_search_limit   = 5;
 664 BOOL    dns_csa_use_reverse    = TRUE;
 665 #ifdef EXPERIMENTAL_DANE
 666 int     dns_dane_ok            = -1;
 667 #endif
 668 uschar *dns_ipv4_lookup        = NULL;
 669 int     dns_retrans            = 0;
 670 int     dns_retry              = 0;
 671 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 672 uschar *dns_trust_aa           = NULL;
 673 int     dns_use_edns0          = -1; /* <0 = not coerced */
 674 uschar *dnslist_domain         = NULL;
 675 uschar *dnslist_matched        = NULL;
 676 uschar *dnslist_text           = NULL;
 677 uschar *dnslist_value          = NULL;
 678 tree_node *domainlist_anchor   = NULL;
 679 int     domainlist_count       = 0;
 680 BOOL    dont_deliver           = FALSE;
 681 BOOL    dot_ends               = TRUE;
 682 BOOL    drop_cr                = FALSE;         /* No longer used */
 683 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 684
 685 BOOL    enable_dollar_recipients = FALSE;
 686 BOOL    envelope_to_remove     = TRUE;
 687 int     errno_quota            = ERRNO_QUOTA;
 688 uschar *errors_copy            = NULL;
 689 int     error_handling         = ERRORS_SENDER;
 690 uschar *errors_reply_to        = NULL;
 691 int     errors_sender_rc       = EXIT_FAILURE;
 692 #ifdef EXPERIMENTAL_EVENT
 693 uschar *event_action             = NULL;        /* expansion for delivery events */
 694 uschar *event_data               = NULL;        /* auxilary data variable for event */
 695 int     event_defer_errno        = 0;
 696 const uschar *event_name         = NULL;        /* event name variable */
 697 #endif
 698
 699
 700 gid_t   exim_gid               = EXIM_GID;
 701 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 702 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 703                         "\0<---------------Space to patch exim_path->";
 704 uid_t   exim_uid               = EXIM_UID;
 705 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 706 int     expand_forbid          = 0;
 707 int     expand_nlength[EXPAND_MAXN+1];
 708 int     expand_nmax            = -1;
 709 uschar *expand_nstring[EXPAND_MAXN+1];
 710 BOOL    expand_string_forcedfail = FALSE;
 711 uschar *expand_string_message;
 712 BOOL    extract_addresses_remove_arguments = TRUE;
 713 uschar *extra_local_interfaces = NULL;
 714
 715 int     fake_response          = OK;
 716 uschar *fake_response_text     = US"Your message has been rejected but is "
 717                                    "being kept for evaluation.\nIf it was a "
 718                                    "legitimate message, it may still be "
 719                                    "delivered to the target recipient(s).";
 720 int     filter_n[FILTER_VARIABLE_COUNT];
 721 BOOL    filter_running         = FALSE;
 722 int     filter_sn[FILTER_VARIABLE_COUNT];
 723 int     filter_test            = FTEST_NONE;
 724 uschar *filter_test_sfile      = NULL;
 725 uschar *filter_test_ufile      = NULL;
 726 uschar *filter_thisaddress     = NULL;
 727 int     finduser_retries       = 0;
 728 #ifdef WITH_OLD_DEMIME
 729 uschar *found_extension        = NULL;
 730 #endif
 731 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 732 uschar *freeze_tell            = NULL;
 733 uschar *freeze_tell_config     = NULL;
 734 uschar *fudged_queue_times     = US"";
 735
 736 uschar *gecos_name             = NULL;
 737 uschar *gecos_pattern          = NULL;
 738 rewrite_rule  *global_rewrite_rules = NULL;
 739
 740 uschar *headers_charset        = US HEADERS_CHARSET;
 741 int     header_insert_maxlen   = 64 * 1024;
 742 header_line  *header_last      = NULL;
 743 header_line  *header_list      = NULL;
 744 int     header_maxsize         = HEADER_MAXSIZE;
 745 int     header_line_maxsize    = 0;
 746
 747 header_name header_names[] = {
 748   { US"bcc",            3, TRUE,  htype_bcc },
 749   { US"cc",             2, TRUE,  htype_cc },
 750   { US"date",           4, TRUE,  htype_date },
 751   { US"delivery-date", 13, FALSE, htype_delivery_date },
 752   { US"envelope-to",   11, FALSE, htype_envelope_to },
 753   { US"from",           4, TRUE,  htype_from },
 754   { US"message-id",    10, TRUE,  htype_id },
 755   { US"received",       8, FALSE, htype_received },
 756   { US"reply-to",       8, FALSE, htype_reply_to },
 757   { US"return-path",   11, FALSE, htype_return_path },
 758   { US"sender",         6, TRUE,  htype_sender },
 759   { US"subject",        7, FALSE, htype_subject },
 760   { US"to",             2, TRUE,  htype_to }
 761 };
 762
 763 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 764
 765 BOOL    header_rewritten       = FALSE;
 766 uschar *helo_accept_junk_hosts = NULL;
 767 uschar *helo_allow_chars       = US"";
 768 uschar *helo_lookup_domains    = US"@ : @[]";
 769 uschar *helo_try_verify_hosts  = NULL;
 770 BOOL    helo_verified          = FALSE;
 771 BOOL    helo_verify_failed     = FALSE;
 772 uschar *helo_verify_hosts      = NULL;
 773 const uschar *hex_digits       = CUS"0123456789abcdef";
 774 uschar *hold_domains           = NULL;
 775 BOOL    host_checking          = FALSE;
 776 BOOL    host_checking_callout  = FALSE;
 777 uschar *host_data              = NULL;
 778 BOOL    host_find_failed_syntax= FALSE;
 779 uschar *host_lookup            = NULL;
 780 BOOL    host_lookup_deferred   = FALSE;
 781 BOOL    host_lookup_failed     = FALSE;
 782 uschar *host_lookup_order      = US"bydns:byaddr";
 783 uschar *host_lookup_msg        = US"";
 784 int     host_number            = 0;
 785 uschar *host_number_string     = NULL;
 786 uschar *host_reject_connection = NULL;
 787 tree_node *hostlist_anchor     = NULL;
 788 int     hostlist_count         = 0;
 789 uschar *hosts_treat_as_local   = NULL;
 790 uschar *hosts_connection_nolog = NULL;
 791
 792 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 793 BOOL    ignore_fromline_local  = FALSE;
 794 uschar *ignore_fromline_hosts  = NULL;
 795 BOOL    inetd_wait_mode        = FALSE;
 796 int     inetd_wait_timeout     = -1;
 797 uschar *interface_address      = NULL;
 798 int     interface_port         = -1;
 799 BOOL    is_inetd               = FALSE;
 800 uschar *iterate_item           = NULL;
 801
 802 int     journal_fd             = -1;
 803
 804 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 805
 806 uschar *eldap_dn               = NULL;
 807 int     load_average           = -2;
 808 BOOL    local_error_message    = FALSE;
 809 BOOL    local_from_check       = TRUE;
 810 uschar *local_from_prefix      = NULL;
 811 uschar *local_from_suffix      = NULL;
 812
 813 #if HAVE_IPV6
 814 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 815 #else
 816 uschar *local_interfaces       = US"0.0.0.0";
 817 #endif
 818
 819 uschar *local_scan_data        = NULL;
 820 int     local_scan_timeout     = 5*60;
 821 BOOL    local_sender_retain    = FALSE;
 822 gid_t   local_user_gid         = (gid_t)(-1);
 823 uid_t   local_user_uid         = (uid_t)(-1);
 824
 825 tree_node *localpartlist_anchor= NULL;
 826 int     localpartlist_count    = 0;
 827 uschar *log_buffer             = NULL;
 828
 829 int     log_default[]          = { /* for initializing log_selector */
 830   Li_acl_warn_skipped,
 831   Li_connection_reject,
 832   Li_delay_delivery,
 833   Li_dnslist_defer,
 834   Li_etrn,
 835   Li_host_lookup_failed,
 836   Li_lost_incoming_connection,
 837   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 838   Li_queue_run,
 839   Li_rejected_header,
 840   Li_retry_defer,
 841   Li_sender_verify_fail,
 842   Li_size_reject,
 843   Li_skip_delivery,
 844   Li_smtp_confirmation,
 845   Li_tls_certificate_verified,
 846   Li_tls_cipher,
 847   -1
 848 };
 849
 850 uschar *log_file_path          = US LOG_FILE_PATH
 851                            "\0<--------------Space to patch log_file_path->";
 852
 853 int     log_notall[]           = {
 854   -1
 855 };
 856 bit_table log_options[]        = { /* must be in alphabetical order */
 857   BIT_TABLE(L, 8bitmime),
 858   BIT_TABLE(L, acl_warn_skipped),
 859   BIT_TABLE(L, address_rewrite),
 860   BIT_TABLE(L, all),
 861   BIT_TABLE(L, all_parents),
 862   BIT_TABLE(L, arguments),
 863   BIT_TABLE(L, connection_reject),
 864   BIT_TABLE(L, delay_delivery),
 865   BIT_TABLE(L, deliver_time),
 866   BIT_TABLE(L, delivery_size),
 867   BIT_TABLE(L, dnslist_defer),
 868   BIT_TABLE(L, etrn),
 869   BIT_TABLE(L, host_lookup_failed),
 870   BIT_TABLE(L, ident_timeout),
 871   BIT_TABLE(L, incoming_interface),
 872   BIT_TABLE(L, incoming_port),
 873   BIT_TABLE(L, lost_incoming_connection),
 874   BIT_TABLE(L, outgoing_interface),
 875   BIT_TABLE(L, outgoing_port),
 876   BIT_TABLE(L, pid),
 877 #ifdef EXPERIMENTAL_PROXY
 878   BIT_TABLE(L, proxy),
 879 #endif
 880   BIT_TABLE(L, queue_run),
 881   BIT_TABLE(L, queue_time),
 882   BIT_TABLE(L, queue_time_overall),
 883   BIT_TABLE(L, received_recipients),
 884   BIT_TABLE(L, received_sender),
 885   BIT_TABLE(L, rejected_header),
 886   { US"rejected_headers", Li_rejected_header },
 887   BIT_TABLE(L, retry_defer),
 888   BIT_TABLE(L, return_path_on_delivery),
 889   BIT_TABLE(L, sender_on_delivery),
 890   BIT_TABLE(L, sender_verify_fail),
 891   BIT_TABLE(L, size_reject),
 892   BIT_TABLE(L, skip_delivery),
 893   BIT_TABLE(L, smtp_confirmation),
 894   BIT_TABLE(L, smtp_connection),
 895   BIT_TABLE(L, smtp_incomplete_transaction),
 896   BIT_TABLE(L, smtp_mailauth),
 897   BIT_TABLE(L, smtp_no_mail),
 898   BIT_TABLE(L, smtp_protocol_error),
 899   BIT_TABLE(L, smtp_syntax_error),
 900   BIT_TABLE(L, subject),
 901   BIT_TABLE(L, tls_certificate_verified),
 902   BIT_TABLE(L, tls_cipher),
 903   BIT_TABLE(L, tls_peerdn),
 904   BIT_TABLE(L, tls_sni),
 905   BIT_TABLE(L, unknown_in_list),
 906 };
 907 int     log_options_count      = nelem(log_options);
 908
 909 int     log_reject_target      = 0;
 910 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 911 uschar *log_selector_string    = NULL;
 912 FILE   *log_stderr             = NULL;
 913 BOOL    log_testing_mode       = FALSE;
 914 BOOL    log_timezone           = FALSE;
 915 uschar *login_sender_address   = NULL;
 916 uschar *lookup_dnssec_authenticated = NULL;
 917 int     lookup_open_max        = 25;
 918 uschar *lookup_value           = NULL;
 919
 920 macro_item  *macros            = NULL;
 921 uschar *mailstore_basename     = NULL;
 922 #ifdef WITH_CONTENT_SCAN
 923 uschar *malware_name           = NULL;  /* Virus Name */
 924 #endif
 925 int     max_received_linelength= 0;
 926 int     max_username_length    = 0;
 927 int     message_age            = 0;
 928 uschar *message_body           = NULL;
 929 uschar *message_body_end       = NULL;
 930 BOOL    message_body_newlines  = FALSE;
 931 int     message_body_size      = 0;
 932 int     message_body_visible   = 500;
 933 int     message_ended          = END_NOTSTARTED;
 934 uschar *message_headers        = NULL;
 935 uschar *message_id;
 936 uschar *message_id_domain      = NULL;
 937 uschar *message_id_text        = NULL;
 938 struct timeval message_id_tv   = { 0, 0 };
 939 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 940 uschar *message_id_external;
 941 int     message_linecount      = 0;
 942 BOOL    message_logs           = TRUE;
 943 int     message_size           = 0;
 944 uschar *message_size_limit     = US"50M";
 945 #ifdef EXPERIMENTAL_INTERNATIONAL
 946 BOOL    message_smtputf8       = FALSE;
 947 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 948 #endif
 949 uschar  message_subdir[2]      = { 0, 0 };
 950 uschar *message_reference      = NULL;
 951
 952 /* MIME ACL expandables */
 953 #ifdef WITH_CONTENT_SCAN
 954 int     mime_anomaly_level     = 0;
 955 const uschar *mime_anomaly_text      = NULL;
 956 uschar *mime_boundary          = NULL;
 957 uschar *mime_charset           = NULL;
 958 uschar *mime_content_description = NULL;
 959 uschar *mime_content_disposition = NULL;
 960 uschar *mime_content_id        = NULL;
 961 unsigned int mime_content_size = 0;
 962 uschar *mime_content_transfer_encoding = NULL;
 963 uschar *mime_content_type      = NULL;
 964 uschar *mime_decoded_filename  = NULL;
 965 uschar *mime_filename          = NULL;
 966 int     mime_is_multipart      = 0;
 967 int     mime_is_coverletter    = 0;
 968 int     mime_is_rfc822         = 0;
 969 int     mime_part_count        = -1;
 970 #endif
 971
 972 BOOL    mua_wrapper            = FALSE;
 973
 974 uid_t  *never_users            = NULL;
 975 #ifdef WITH_CONTENT_SCAN
 976 BOOL    no_mbox_unspool        = FALSE;
 977 #endif
 978 BOOL    no_multiline_responses = FALSE;
 979
 980 uid_t   original_euid;
 981 gid_t   originator_gid;
 982 uschar *originator_login       = NULL;
 983 uschar *originator_name        = NULL;
 984 uid_t   originator_uid;
 985 uschar *override_local_interfaces = NULL;
 986 uschar *override_pid_file_path = NULL;
 987
 988 BOOL    parse_allow_group      = FALSE;
 989 BOOL    parse_found_group      = FALSE;
 990 uschar *percent_hack_domains   = NULL;
 991 uschar *pid_file_path          = US PID_FILE_PATH
 992                            "\0<--------------Space to patch pid_file_path->";
 993 BOOL    pipelining_enable      = TRUE;
 994 uschar *pipelining_advertise_hosts = US"*";
 995 BOOL    preserve_message_logs  = FALSE;
 996 uschar *primary_hostname       = NULL;
 997 BOOL    print_topbitchars      = FALSE;
 998 uschar  process_info[PROCESS_INFO_SIZE];
 999 int     process_info_len       = 0;
1000 uschar *process_log_path       = NULL;
1001 BOOL    prod_requires_admin    = TRUE;
1002
1003 #ifdef EXPERIMENTAL_PROXY
1004 uschar *proxy_host_address     = US"";
1005 int     proxy_host_port        = 0;
1006 uschar *proxy_required_hosts   = US"";
1007 BOOL    proxy_session          = FALSE;
1008 BOOL    proxy_session_failed   = FALSE;
1009 uschar *proxy_target_address   = US"";
1010 int     proxy_target_port      = 0;
1011 #endif
1012
1013 uschar *prvscheck_address      = NULL;
1014 uschar *prvscheck_keynum       = NULL;
1015 uschar *prvscheck_result       = NULL;
1016
1017
1018 const uschar *qualify_domain_recipient = NULL;
1019 uschar *qualify_domain_sender  = NULL;
1020 BOOL    queue_2stage           = FALSE;
1021 uschar *queue_domains          = NULL;
1022 int     queue_interval         = -1;
1023 BOOL    queue_list_requires_admin = TRUE;
1024 BOOL    queue_only             = FALSE;
1025 uschar *queue_only_file        = NULL;
1026 int     queue_only_load        = -1;
1027 BOOL    queue_only_load_latch  = TRUE;
1028 BOOL    queue_only_override    = TRUE;
1029 BOOL    queue_only_policy      = FALSE;
1030 BOOL    queue_run_first_delivery = FALSE;
1031 BOOL    queue_run_force        = FALSE;
1032 BOOL    queue_run_in_order     = FALSE;
1033 BOOL    queue_run_local        = FALSE;
1034 int     queue_run_max          = 5;
1035 pid_t   queue_run_pid          = (pid_t)0;
1036 int     queue_run_pipe         = -1;
1037 BOOL    queue_running          = FALSE;
1038 BOOL    queue_smtp             = FALSE;
1039 uschar *queue_smtp_domains     = NULL;
1040
1041 unsigned int random_seed       = 0;
1042 tree_node *ratelimiters_cmd    = NULL;
1043 tree_node *ratelimiters_conn   = NULL;
1044 tree_node *ratelimiters_mail   = NULL;
1045 uschar *raw_active_hostname    = NULL;
1046 uschar *raw_sender             = NULL;
1047 uschar **raw_recipients        = NULL;
1048 int     raw_recipients_count   = 0;
1049
1050 int     rcpt_count             = 0;
1051 int     rcpt_fail_count        = 0;
1052 int     rcpt_defer_count       = 0;
1053 gid_t   real_gid;
1054 uid_t   real_uid;
1055 BOOL    really_exim            = TRUE;
1056 BOOL    receive_call_bombout   = FALSE;
1057 int     receive_linecount      = 0;
1058 int     receive_messagecount   = 0;
1059 int     receive_timeout        = 0;
1060 int     received_count         = 0;
1061 uschar *received_for           = NULL;
1062
1063 /*  This is the default text for Received headers generated by Exim. The
1064 date  will be automatically added on the end. */
1065
1066 uschar *received_header_text   = US
1067      "Received: "
1068      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1069      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1070      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1071      "by $primary_hostname "
1072      "${if def:received_protocol {with $received_protocol}} "
1073      #ifdef SUPPORT_TLS
1074      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1075      #endif
1076      "(Exim $version_number)\n\t"
1077      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1078      "id $message_exim_id"
1079      "${if def:received_for {\n\tfor $received_for}}"
1080      "\0<---------------Space to patch received_header_text->";
1081
1082 int     received_headers_max   = 30;
1083 uschar *received_protocol      = NULL;
1084 int     received_time          = 0;
1085 uschar *recipient_data         = NULL;
1086 uschar *recipient_unqualified_hosts = NULL;
1087 uschar *recipient_verify_failure = NULL;
1088 int     recipients_count       = 0;
1089 BOOL    recipients_discarded   = FALSE;
1090 recipient_item  *recipients_list = NULL;
1091 int     recipients_list_max    = 0;
1092 int     recipients_max         = 0;
1093 BOOL    recipients_max_reject  = FALSE;
1094 const pcre *regex_AUTH         = NULL;
1095 const pcre *regex_check_dns_names = NULL;
1096 const pcre *regex_From         = NULL;
1097 const pcre *regex_IGNOREQUOTA  = NULL;
1098 const pcre *regex_PIPELINING   = NULL;
1099 const pcre *regex_SIZE         = NULL;
1100 const pcre *regex_ismsgid      = NULL;
1101 const pcre *regex_smtp_code    = NULL;
1102 uschar *regex_vars[REGEX_VARS];
1103 #ifdef WHITELIST_D_MACROS
1104 const pcre *regex_whitelisted_macro = NULL;
1105 #endif
1106 #ifdef WITH_CONTENT_SCAN
1107 uschar *regex_match_string     = NULL;
1108 #endif
1109 int     remote_delivery_count  = 0;
1110 int     remote_max_parallel    = 2;
1111 uschar *remote_sort_domains    = NULL;
1112 int     retry_data_expire      = 7*24*60*60;
1113 int     retry_interval_max     = 24*60*60;
1114 int     retry_maximum_timeout  = 0;        /* set from retry config */
1115 retry_config  *retries         = NULL;
1116 uschar *return_path            = NULL;
1117 BOOL    return_path_remove     = TRUE;
1118 int     rewrite_existflags     = 0;
1119 uschar *rfc1413_hosts          = US"@[]";
1120 int     rfc1413_query_timeout  = 0;
1121 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1122 uid_t   root_gid               = ROOT_GID;
1123 uid_t   root_uid               = ROOT_UID;
1124
1125 router_instance  *routers  = NULL;
1126 router_instance  router_defaults = {
1127     NULL,                      /* chain pointer */
1128     NULL,                      /* name */
1129     NULL,                      /* info */
1130     NULL,                      /* private options block pointer */
1131     NULL,                      /* driver name */
1132
1133     NULL,                      /* address_data */
1134 #ifdef EXPERIMENTAL_BRIGHTMAIL
1135     NULL,                      /* bmi_rule */
1136 #endif
1137     NULL,                      /* cannot_route_message */
1138     NULL,                      /* condition */
1139     NULL,                      /* current_directory */
1140     NULL,                      /* debug_string */
1141     NULL,                      /* domains */
1142     NULL,                      /* errors_to */
1143     NULL,                      /* expand_gid */
1144     NULL,                      /* expand_uid */
1145     NULL,                      /* expand_more */
1146     NULL,                      /* expand_unseen */
1147     NULL,                      /* extra_headers */
1148     NULL,                      /* fallback_hosts */
1149     NULL,                      /* home_directory */
1150     NULL,                      /* ignore_target_hosts */
1151     NULL,                      /* local_parts */
1152     NULL,                      /* pass_router_name */
1153     NULL,                      /* prefix */
1154     NULL,                      /* redirect_router_name */
1155     NULL,                      /* remove_headers */
1156     NULL,                      /* require_files */
1157     NULL,                      /* router_home_directory */
1158     US"freeze",                /* self */
1159     NULL,                      /* senders */
1160     NULL,                      /* suffix */
1161     NULL,                      /* translate_ip_address */
1162     NULL,                      /* transport_name */
1163
1164     TRUE,                      /* address_test */
1165 #ifdef EXPERIMENTAL_BRIGHTMAIL
1166     FALSE,                     /* bmi_deliver_alternate */
1167     FALSE,                     /* bmi_deliver_default */
1168     FALSE,                     /* bmi_dont_deliver */
1169 #endif
1170     TRUE,                      /* expn */
1171     FALSE,                     /* caseful_local_part */
1172     FALSE,                     /* check_local_user */
1173     FALSE,                     /* disable_logging */
1174     FALSE,                     /* fail_verify_recipient */
1175     FALSE,                     /* fail_verify_sender */
1176     FALSE,                     /* gid_set */
1177     FALSE,                     /* initgroups */
1178     TRUE_UNSET,                /* log_as_local */
1179     TRUE,                      /* more */
1180     FALSE,                     /* pass_on_timeout */
1181     FALSE,                     /* prefix_optional */
1182     TRUE,                      /* repeat_use */
1183     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1184     FALSE,                     /* same_domain_copy_routing */
1185     FALSE,                     /* self_rewrite */
1186     FALSE,                     /* suffix_optional */
1187     FALSE,                     /* verify_only */
1188     TRUE,                      /* verify_recipient */
1189     TRUE,                      /* verify_sender */
1190     FALSE,                     /* uid_set */
1191     FALSE,                     /* unseen */
1192     FALSE,                     /* dsn_lasthop */
1193
1194     self_freeze,               /* self_code */
1195     (uid_t)(-1),               /* uid */
1196     (gid_t)(-1),               /* gid */
1197
1198     NULL,                      /* fallback_hostlist */
1199     NULL,                      /* transport instance */
1200     NULL,                      /* pass_router */
1201     NULL,                      /* redirect_router */
1202
1203     { NULL, NULL },            /* dnssec_domains {require,request} */
1204 };
1205
1206 uschar *router_name            = NULL;
1207
1208 ip_address_item *running_interfaces = NULL;
1209 BOOL    running_in_test_harness = FALSE;
1210
1211 /* This is a weird one. The following string gets patched in the binary by the
1212 script that sets up a copy of Exim for running in the test harness. It seems
1213 that compilers are now clever, and share constant strings if they can.
1214 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1215 make use of the end of this string in order to save space. So the patching then
1216 wrecks this. We defeat this optimization by adding some additional characters
1217 onto the end of the string. */
1218
1219 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1220
1221 int     runrc                  = 0;
1222
1223 uschar *search_error_message   = NULL;
1224 BOOL    search_find_defer      = FALSE;
1225 uschar *self_hostname          = NULL;
1226 uschar *sender_address         = NULL;
1227 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1228 uschar *sender_address_data    = NULL;
1229 BOOL    sender_address_forced  = FALSE;
1230 uschar *sender_address_unrewritten = NULL;
1231 uschar *sender_data            = NULL;
1232 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1233 uschar *sender_fullhost        = NULL;
1234 BOOL    sender_helo_dnssec     = FALSE;
1235 uschar *sender_helo_name       = NULL;
1236 uschar **sender_host_aliases   = &no_aliases;
1237 uschar *sender_host_address    = NULL;
1238 uschar *sender_host_authenticated = NULL;
1239 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1240 BOOL    sender_host_dnssec     = FALSE;
1241 uschar *sender_host_name       = NULL;
1242 int     sender_host_port       = 0;
1243 BOOL    sender_host_notsocket  = FALSE;
1244 BOOL    sender_host_unknown    = FALSE;
1245 uschar *sender_ident           = NULL;
1246 BOOL    sender_local           = FALSE;
1247 BOOL    sender_name_forced     = FALSE;
1248 uschar *sender_rate            = NULL;
1249 uschar *sender_rate_limit      = NULL;
1250 uschar *sender_rate_period     = NULL;
1251 uschar *sender_rcvhost         = NULL;
1252 BOOL    sender_set_untrusted   = FALSE;
1253 uschar *sender_unqualified_hosts = NULL;
1254 uschar *sender_verify_failure = NULL;
1255 address_item *sender_verified_list  = NULL;
1256 address_item *sender_verified_failed = NULL;
1257 int     sender_verified_rc     = -1;
1258 BOOL    sender_verified_responded = FALSE;
1259 uschar *sending_ip_address     = NULL;
1260 int     sending_port           = -1;
1261 SIGNAL_BOOL sigalrm_seen       = FALSE;
1262 uschar **sighup_argv           = NULL;
1263 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1264 int     smtp_accept_count      = 0;
1265 BOOL    smtp_accept_keepalive  = TRUE;
1266 int     smtp_accept_max        = 20;
1267 int     smtp_accept_max_nonmail= 10;
1268 uschar *smtp_accept_max_nonmail_hosts = US"*";
1269 int     smtp_accept_max_per_connection = 1000;
1270 uschar *smtp_accept_max_per_host = NULL;
1271 int     smtp_accept_queue      = 0;
1272 int     smtp_accept_queue_per_connection = 10;
1273 int     smtp_accept_reserve    = 0;
1274 uschar *smtp_active_hostname   = NULL;
1275 BOOL    smtp_authenticated     = FALSE;
1276 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1277                              "Exim $version_number $tod_full"
1278                              "\0<---------------Space to patch smtp_banner->";
1279 BOOL    smtp_batched_input     = FALSE;
1280 BOOL    smtp_check_spool_space = TRUE;
1281 int     smtp_ch_index          = 0;
1282 uschar *smtp_cmd_argument      = NULL;
1283 uschar *smtp_cmd_buffer        = NULL;
1284 time_t  smtp_connection_start  = 0;
1285 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1286 int     smtp_connect_backlog   = 20;
1287 double  smtp_delay_mail        = 0.0;
1288 double  smtp_delay_rcpt        = 0.0;
1289 BOOL    smtp_enforce_sync      = TRUE;
1290 FILE   *smtp_in                = NULL;
1291 BOOL    smtp_input             = FALSE;
1292 int     smtp_load_reserve      = -1;
1293 int     smtp_mailcmd_count     = 0;
1294 FILE   *smtp_out               = NULL;
1295 uschar *smtp_etrn_command      = NULL;
1296 BOOL    smtp_etrn_serialize    = TRUE;
1297 int     smtp_max_synprot_errors= 3;
1298 int     smtp_max_unknown_commands = 3;
1299 uschar *smtp_notquit_reason    = NULL;
1300 uschar *smtp_ratelimit_hosts   = NULL;
1301 uschar *smtp_ratelimit_mail    = NULL;
1302 uschar *smtp_ratelimit_rcpt    = NULL;
1303 uschar *smtp_read_error        = US"";
1304 int     smtp_receive_timeout   = 5*60;
1305 uschar *smtp_receive_timeout_s = NULL;
1306 uschar *smtp_reserve_hosts     = NULL;
1307 BOOL    smtp_return_error_details = FALSE;
1308 int     smtp_rlm_base          = 0;
1309 double  smtp_rlm_factor        = 0.0;
1310 int     smtp_rlm_limit         = 0;
1311 int     smtp_rlm_threshold     = INT_MAX;
1312 int     smtp_rlr_base          = 0;
1313 double  smtp_rlr_factor        = 0.0;
1314 int     smtp_rlr_limit         = 0;
1315 int     smtp_rlr_threshold     = INT_MAX;
1316 BOOL    smtp_use_pipelining    = FALSE;
1317 BOOL    smtp_use_size          = FALSE;
1318 #ifdef EXPERIMENTAL_INTERNATIONAL
1319 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1320 #endif
1321
1322 #ifdef WITH_CONTENT_SCAN
1323 uschar *spamd_address          = US"127.0.0.1 783";
1324 uschar *spam_bar               = NULL;
1325 uschar *spam_report            = NULL;
1326 uschar *spam_action            = NULL;
1327 uschar *spam_score             = NULL;
1328 uschar *spam_score_int         = NULL;
1329 #endif
1330 #ifdef EXPERIMENTAL_SPF
1331 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1332 uschar *spf_header_comment     = NULL;
1333 uschar *spf_received           = NULL;
1334 uschar *spf_result             = NULL;
1335 uschar *spf_smtp_comment       = NULL;
1336 #endif
1337
1338 BOOL    split_spool_directory  = FALSE;
1339 uschar *spool_directory        = US SPOOL_DIRECTORY
1340                            "\0<--------------Space to patch spool_directory->";
1341 #ifdef EXPERIMENTAL_SRS
1342 uschar *srs_config             = NULL;
1343 uschar *srs_db_address         = NULL;
1344 uschar *srs_db_key             = NULL;
1345 int     srs_hashlength         = 6;
1346 int     srs_hashmin            = -1;
1347 int     srs_maxage             = 31;
1348 uschar *srs_orig_recipient     = NULL;
1349 uschar *srs_orig_sender        = NULL;
1350 uschar *srs_recipient          = NULL;
1351 uschar *srs_secrets            = NULL;
1352 uschar *srs_status             = NULL;
1353 BOOL    srs_usehash            = TRUE;
1354 BOOL    srs_usetimestamp       = TRUE;
1355 #endif
1356 BOOL    strict_acl_vars        = FALSE;
1357 int     string_datestamp_offset= -1;
1358 int     string_datestamp_length= 0;
1359 int     string_datestamp_type  = -1;
1360 BOOL    strip_excess_angle_brackets = FALSE;
1361 BOOL    strip_trailing_dot     = FALSE;
1362 uschar *submission_domain      = NULL;
1363 BOOL    submission_mode        = FALSE;
1364 uschar *submission_name        = NULL;
1365 BOOL    suppress_local_fixups  = FALSE;
1366 BOOL    suppress_local_fixups_default = FALSE;
1367 BOOL    synchronous_delivery   = FALSE;
1368 BOOL    syslog_duplication     = TRUE;
1369 int     syslog_facility        = LOG_MAIL;
1370 uschar *syslog_processname     = US"exim";
1371 BOOL    syslog_timestamp       = TRUE;
1372 uschar *system_filter          = NULL;
1373
1374 uschar *system_filter_directory_transport = NULL;
1375 uschar *system_filter_file_transport = NULL;
1376 uschar *system_filter_pipe_transport = NULL;
1377 uschar *system_filter_reply_transport = NULL;
1378
1379 gid_t   system_filter_gid      = 0;
1380 BOOL    system_filter_gid_set  = FALSE;
1381 uid_t   system_filter_uid      = (uid_t)-1;
1382 BOOL    system_filter_uid_set  = FALSE;
1383 BOOL    system_filtering       = FALSE;
1384
1385 BOOL    tcp_nodelay            = TRUE;
1386 #ifdef USE_TCP_WRAPPERS
1387 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1388 #endif
1389 int     test_harness_load_avg  = 0;
1390 int     thismessage_size_limit = 0;
1391 int     timeout_frozen_after   = 0;
1392 BOOL    timestamps_utc         = FALSE;
1393
1394 transport_instance  *transports = NULL;
1395
1396 transport_instance  transport_defaults = {
1397     NULL,                     /* chain pointer */
1398     NULL,                     /* name */
1399     NULL,                     /* info */
1400     NULL,                     /* private options block pointer */
1401     NULL,                     /* driver name */
1402     NULL,                     /* setup entry point */
1403     1,                        /* batch_max */
1404     NULL,                     /* batch_id */
1405     NULL,                     /* home_dir */
1406     NULL,                     /* current_dir */
1407     NULL,                     /* expand-multi-domain */
1408     TRUE,                     /* multi-domain */
1409     FALSE,                    /* overrides_hosts */
1410     100,                      /* max_addresses */
1411     500,                      /* connection_max_messages */
1412     FALSE,                    /* deliver_as_creator */
1413     FALSE,                    /* disable_logging */
1414     FALSE,                    /* initgroups */
1415     FALSE,                    /* uid_set */
1416     FALSE,                    /* gid_set */
1417     (uid_t)(-1),              /* uid */
1418     (gid_t)(-1),              /* gid */
1419     NULL,                     /* expand_uid */
1420     NULL,                     /* expand_gid */
1421     NULL,                     /* warn_message */
1422     NULL,                     /* shadow */
1423     NULL,                     /* shadow_condition */
1424     NULL,                     /* filter_command */
1425     NULL,                     /* add_headers */
1426     NULL,                     /* remove_headers */
1427     NULL,                     /* return_path */
1428     NULL,                     /* debug_string */
1429     NULL,                     /* max_parallel */
1430     NULL,                     /* message_size_limit */
1431     NULL,                     /* headers_rewrite */
1432     NULL,                     /* rewrite_rules */
1433     0,                        /* rewrite_existflags */
1434     300,                      /* filter_timeout */
1435     FALSE,                    /* body_only */
1436     FALSE,                    /* delivery_date_add */
1437     FALSE,                    /* envelope_to_add */
1438     FALSE,                    /* headers_only */
1439     FALSE,                    /* rcpt_include_affixes */
1440     FALSE,                    /* return_path_add */
1441     FALSE,                    /* return_output */
1442     FALSE,                    /* return_fail_output */
1443     FALSE,                    /* log_output */
1444     FALSE,                    /* log_fail_output */
1445     FALSE,                    /* log_defer_output */
1446     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1447                                  1 nor 0 so can detect unset */
1448 #ifdef EXPERIMENTAL_EVENT
1449    ,NULL                      /* event_action */
1450 #endif
1451 };
1452
1453 int     transport_count;
1454 uschar *transport_name          = NULL;
1455 int     transport_newlines;
1456 const uschar **transport_filter_argv  = NULL;
1457 int     transport_filter_timeout;
1458 BOOL    transport_filter_timed_out = FALSE;
1459 int     transport_write_timeout= 0;
1460
1461 tree_node  *tree_dns_fails     = NULL;
1462 tree_node  *tree_duplicates    = NULL;
1463 tree_node  *tree_nonrecipients = NULL;
1464 tree_node  *tree_unusable      = NULL;
1465
1466 BOOL    trusted_caller         = FALSE;
1467 BOOL    trusted_config         = TRUE;
1468 gid_t  *trusted_groups         = NULL;
1469 uid_t  *trusted_users          = NULL;
1470 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1471
1472 uschar *unknown_login          = NULL;
1473 uschar *unknown_username       = NULL;
1474 uschar *untrusted_set_sender   = NULL;
1475
1476 /*  A regex for matching a "From_" line in an incoming message, in the form
1477
1478     From ph10 Fri Jan  5 12:35 GMT 1996
1479
1480 which  the "mail" commands send to the MTA (undocumented, of course), or in
1481 the  form
1482
1483     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1484
1485 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1486 Because  of variations in time formats, just match up to the minutes. That
1487 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1488 so  just require one digit for hours and minutes. The weekday is also absent
1489 in  some forms. */
1490
1491 uschar *uucp_from_pattern      = US
1492    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1493    "(?:"                                          /* Non-extracting bracket */
1494    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1495    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1496    ")"                                            /* End alternation */
1497    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1498
1499 uschar *uucp_from_sender       = US"$1";
1500
1501 uschar *verify_mode            = NULL;
1502 uschar *version_copyright      =
1503  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1504    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1505 uschar *version_date           = US"?";
1506 uschar *version_cnumber        = US"????";
1507 uschar *version_string         = US"?";
1508
1509 uschar *warn_message_file      = NULL;
1510 int     warning_count          = 0;
1511 uschar *warnmsg_delay          = NULL;
1512 uschar *warnmsg_recipients     = NULL;
1513 BOOL    write_rejectlog        = TRUE;
1514
1515
1516 /*  End of globals.c */