src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2016 */
   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 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible. */
 102
 103 tls_support tls_in = {
 104  -1,   /* tls_active */
 105  0,    /* tls_bits */
 106  FALSE,/* tls_certificate_verified */
 107 #ifdef EXPERIMENTAL_DANE
 108  FALSE,/* dane_verified */
 109  0,    /* tlsa_usage */
 110 #endif
 111  NULL, /* tls_cipher */
 112  FALSE,/* tls_on_connect */
 113  NULL, /* tls_on_connect_ports */
 114  NULL, /* tls_ourcert */
 115  NULL, /* tls_peercert */
 116  NULL, /* tls_peerdn */
 117  NULL, /* tls_sni */
 118  0     /* tls_ocsp */
 119 };
 120 tls_support tls_out = {
 121  -1,   /* tls_active */
 122  0,    /* tls_bits */
 123  FALSE,/* tls_certificate_verified */
 124 #ifdef EXPERIMENTAL_DANE
 125  FALSE,/* dane_verified */
 126  0,    /* tlsa_usage */
 127 #endif
 128  NULL, /* tls_cipher */
 129  FALSE,/* tls_on_connect */
 130  NULL, /* tls_on_connect_ports */
 131  NULL, /* tls_ourcert */
 132  NULL, /* tls_peercert */
 133  NULL, /* tls_peerdn */
 134  NULL, /* tls_sni */
 135  0     /* tls_ocsp */
 136 };
 137
 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
 144 #ifdef SUPPORT_TLS
 145 BOOL    gnutls_compat_mode     = FALSE;
 146 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 147 uschar *openssl_options        = NULL;
 148 const pcre *regex_STARTTLS     = NULL;
 149 uschar *tls_advertise_hosts    = US"*";
 150 uschar *tls_certificate        = NULL;
 151 uschar *tls_crl                = NULL;
 152 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 153 that's the interop problem which has been observed: GnuTLS suggesting a higher
 154 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 155 int     tls_dh_max_bits        = 2236;
 156 uschar *tls_dhparam            = NULL;
 157 uschar *tls_eccurve            = US"prime256v1";
 158 # ifndef DISABLE_OCSP
 159 uschar *tls_ocsp_file          = NULL;
 160 # endif
 161 BOOL    tls_offered            = FALSE;
 162 uschar *tls_privatekey         = NULL;
 163 BOOL    tls_remember_esmtp     = FALSE;
 164 uschar *tls_require_ciphers    = NULL;
 165 uschar *tls_try_verify_hosts   = NULL;
 166 uschar *tls_verify_certificates= US"system";
 167 uschar *tls_verify_hosts       = NULL;
 168 #else   /*!SUPPORT_TLS*/
 169 uschar *tls_advertise_hosts    = NULL;
 170 #endif
 171
 172 #ifndef DISABLE_PRDR
 173 /* Per Recipient Data Response variables */
 174 BOOL    prdr_enable            = FALSE;
 175 BOOL    prdr_requested         = FALSE;
 176 const pcre *regex_PRDR         = NULL;
 177 #endif
 178
 179 #ifdef SUPPORT_I18N
 180 const pcre *regex_UTF8         = NULL;
 181 #endif
 182
 183 /* Input-reading functions for messages, so we can use special ones for
 184 incoming TCP/IP. The defaults use stdin. We never need these for any
 185 stand-alone tests. */
 186
 187 #ifndef STAND_ALONE
 188 int (*receive_getc)(void)      = stdin_getc;
 189 int (*receive_ungetc)(int)     = stdin_ungetc;
 190 int (*receive_feof)(void)      = stdin_feof;
 191 int (*receive_ferror)(void)    = stdin_ferror;
 192 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 193 #endif
 194
 195
 196 /* List of per-address expansion variables for clearing and saving/restoring
 197 when verifying one address while routing/verifying another. We have to have
 198 the size explicit, because it is referenced from more than one module. */
 199
 200 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 201   CUSS &deliver_address_data,
 202   CUSS &deliver_domain,
 203   CUSS &deliver_domain_data,
 204   CUSS &deliver_domain_orig,
 205   CUSS &deliver_domain_parent,
 206   CUSS &deliver_localpart,
 207   CUSS &deliver_localpart_data,
 208   CUSS &deliver_localpart_orig,
 209   CUSS &deliver_localpart_parent,
 210   CUSS &deliver_localpart_prefix,
 211   CUSS &deliver_localpart_suffix,
 212   CUSS (uschar **)(&deliver_recipients),
 213   CUSS &deliver_host,
 214   CUSS &deliver_home,
 215   CUSS &address_file,
 216   CUSS &address_pipe,
 217   CUSS &self_hostname,
 218   NULL };
 219
 220 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 221
 222 /* General global variables */
 223
 224 header_line *acl_added_headers = NULL;
 225 tree_node *acl_anchor          = NULL;
 226 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 227                                   NULL, NULL, NULL, NULL};
 228 int     acl_narg               = 0;
 229
 230 uschar *acl_not_smtp           = NULL;
 231 #ifdef WITH_CONTENT_SCAN
 232 uschar *acl_not_smtp_mime      = NULL;
 233 #endif
 234 uschar *acl_not_smtp_start     = NULL;
 235 uschar *acl_removed_headers    = NULL;
 236 uschar *acl_smtp_auth          = NULL;
 237 uschar *acl_smtp_connect       = NULL;
 238 uschar *acl_smtp_data          = NULL;
 239 #ifndef DISABLE_PRDR
 240 uschar *acl_smtp_data_prdr     = US"accept";
 241 #endif
 242 #ifndef DISABLE_DKIM
 243 uschar *acl_smtp_dkim          = NULL;
 244 #endif
 245 uschar *acl_smtp_etrn          = NULL;
 246 uschar *acl_smtp_expn          = NULL;
 247 uschar *acl_smtp_helo          = NULL;
 248 uschar *acl_smtp_mail          = NULL;
 249 uschar *acl_smtp_mailauth      = NULL;
 250 #ifdef WITH_CONTENT_SCAN
 251 uschar *acl_smtp_mime          = NULL;
 252 #endif
 253 uschar *acl_smtp_notquit       = NULL;
 254 uschar *acl_smtp_predata       = NULL;
 255 uschar *acl_smtp_quit          = NULL;
 256 uschar *acl_smtp_rcpt          = NULL;
 257 uschar *acl_smtp_starttls      = NULL;
 258 uschar *acl_smtp_vrfy          = NULL;
 259
 260 BOOL    acl_temp_details       = FALSE;
 261 tree_node *acl_var_c           = NULL;
 262 tree_node *acl_var_m           = NULL;
 263 uschar *acl_verify_message     = NULL;
 264 string_item *acl_warn_logged   = NULL;
 265
 266 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 267 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 268
 269 uschar *acl_wherenames[]       = { US"RCPT",
 270                                    US"MAIL",
 271                                    US"PREDATA",
 272                                    US"MIME",
 273                                    US"DKIM",
 274                                    US"DATA",
 275 #ifndef DISABLE_PRDR
 276                                    US"PRDR",
 277 #endif
 278                                    US"non-SMTP",
 279                                    US"AUTH",
 280                                    US"connection",
 281                                    US"ETRN",
 282                                    US"EXPN",
 283                                    US"EHLO or HELO",
 284                                    US"MAILAUTH",
 285                                    US"non-SMTP-start",
 286                                    US"NOTQUIT",
 287                                    US"QUIT",
 288                                    US"STARTTLS",
 289                                    US"VRFY",
 290                                    US"delivery",
 291                                    US"unknown"
 292                                  };
 293
 294 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 295                                    US"550",     /* MAIL */
 296                                    US"550",     /* PREDATA */
 297                                    US"550",     /* MIME */
 298                                    US"550",     /* DKIM */
 299                                    US"550",     /* DATA */
 300 #ifndef DISABLE_PRDR
 301                                    US"550",    /* RCPT PRDR */
 302 #endif
 303                                    US"0",       /* not SMTP; not relevant */
 304                                    US"503",     /* AUTH */
 305                                    US"550",     /* connect */
 306                                    US"458",     /* ETRN */
 307                                    US"550",     /* EXPN */
 308                                    US"550",     /* HELO/EHLO */
 309                                    US"0",       /* MAILAUTH; not relevant */
 310                                    US"0",       /* not SMTP; not relevant */
 311                                    US"0",       /* NOTQUIT; not relevant */
 312                                    US"0",       /* QUIT; not relevant */
 313                                    US"550",     /* STARTTLS */
 314                                    US"252",     /* VRFY */
 315                                    US"0",       /* delivery; not relevant */
 316                                    US"0"        /* unknown; not relevant */
 317                                  };
 318
 319 BOOL    active_local_from_check = FALSE;
 320 BOOL    active_local_sender_retain = FALSE;
 321 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 322 uschar *add_environment        = NULL;
 323 address_item  *addr_duplicate  = NULL;
 324
 325 address_item address_defaults = {
 326   NULL,                 /* next */
 327   NULL,                 /* parent */
 328   NULL,                 /* first */
 329   NULL,                 /* dupof */
 330   NULL,                 /* start_router */
 331   NULL,                 /* router */
 332   NULL,                 /* transport */
 333   NULL,                 /* host_list */
 334   NULL,                 /* host_used */
 335   NULL,                 /* fallback_hosts */
 336   NULL,                 /* reply */
 337   NULL,                 /* retries */
 338   NULL,                 /* address */
 339   NULL,                 /* unique */
 340   NULL,                 /* cc_local_part */
 341   NULL,                 /* lc_local_part */
 342   NULL,                 /* local_part */
 343   NULL,                 /* prefix */
 344   NULL,                 /* suffix */
 345   NULL,                 /* domain */
 346   NULL,                 /* address_retry_key */
 347   NULL,                 /* domain_retry_key */
 348   NULL,                 /* current_dir */
 349   NULL,                 /* home_dir */
 350   NULL,                 /* message */
 351   NULL,                 /* user_message */
 352   NULL,                 /* onetime_parent */
 353   NULL,                 /* pipe_expandn */
 354   NULL,                 /* return_filename */
 355   NULL,                 /* self_hostname */
 356   NULL,                 /* shadow_message */
 357 #ifdef SUPPORT_TLS
 358   NULL,                 /* cipher */
 359   NULL,                 /* ourcert */
 360   NULL,                 /* peercert */
 361   NULL,                 /* peerdn */
 362   OCSP_NOT_REQ,         /* ocsp */
 363 #endif
 364 #ifdef EXPERIMENTAL_DSN_INFO
 365   NULL,                 /* smtp_greeting */
 366   NULL,                 /* helo_response */
 367 #endif
 368   NULL,                 /* authenticator */
 369   NULL,                 /* auth_id */
 370   NULL,                 /* auth_sndr */
 371   NULL,                 /* dsn_orcpt */
 372   0,                    /* dsn_flags */
 373   0,                    /* dsn_aware */
 374   (uid_t)(-1),          /* uid */
 375   (gid_t)(-1),          /* gid */
 376   0,                    /* flags */
 377   { 0 },                /* domain_cache - any larger array should be zeroed */
 378   { 0 },                /* localpart_cache - ditto */
 379   -1,                   /* mode */
 380   0,                    /* more_errno */
 381   ERRNO_UNKNOWNERROR,   /* basic_errno */
 382   0,                    /* child_count */
 383   -1,                   /* return_file */
 384   SPECIAL_NONE,         /* special_action */
 385   DEFER,                /* transport_return */
 386   {                     /* fields that are propagated to children */
 387     NULL,               /* address_data */
 388     NULL,               /* domain_data */
 389     NULL,               /* localpart_data */
 390     NULL,               /* errors_address */
 391     NULL,               /* extra_headers */
 392     NULL,               /* remove_headers */
 393 #ifdef EXPERIMENTAL_SRS
 394     NULL,               /* srs_sender */
 395 #endif
 396 #ifdef SUPPORT_I18N
 397     FALSE,              /* utf8 */
 398 #endif
 399   }
 400 };
 401
 402 uschar *address_file           = NULL;
 403 uschar *address_pipe           = NULL;
 404 BOOL    address_test_mode      = FALSE;
 405 tree_node *addresslist_anchor  = NULL;
 406 int     addresslist_count      = 0;
 407 gid_t  *admin_groups           = NULL;
 408 BOOL    admin_user             = FALSE;
 409 BOOL    allow_auth_unadvertised= FALSE;
 410 BOOL    allow_domain_literals  = FALSE;
 411 BOOL    allow_mx_to_ip         = FALSE;
 412 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 413 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 414 BOOL    allow_utf8_domains     = FALSE;
 415 uschar *authenticated_fail_id  = NULL;
 416 uschar *authenticated_id       = NULL;
 417 uschar *authenticated_sender   = NULL;
 418 BOOL    authentication_failed  = FALSE;
 419 auth_instance  *auths          = NULL;
 420 uschar *auth_advertise_hosts   = US"*";
 421 auth_instance auth_defaults    = {
 422     NULL,                      /* chain pointer */
 423     NULL,                      /* name */
 424     NULL,                      /* info */
 425     NULL,                      /* private options block pointer */
 426     NULL,                      /* driver_name */
 427     NULL,                      /* advertise_condition */
 428     NULL,                      /* client_condition */
 429     NULL,                      /* public_name */
 430     NULL,                      /* set_id */
 431     NULL,                      /* set_client_id */
 432     NULL,                      /* server_mail_auth_condition */
 433     NULL,                      /* server_debug_string */
 434     NULL,                      /* server_condition */
 435     FALSE,                     /* client */
 436     FALSE,                     /* server */
 437     FALSE                      /* advertised */
 438 };
 439
 440 uschar *auth_defer_msg         = US"reason not recorded";
 441 uschar *auth_defer_user_msg    = US"";
 442 uschar *auth_vars[AUTH_VARS];
 443 int     auto_thaw              = 0;
 444 #ifdef WITH_CONTENT_SCAN
 445 BOOL    av_failed              = FALSE;
 446 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 447 #endif
 448
 449 BOOL    background_daemon      = TRUE;
 450
 451 #if BASE_62 == 62
 452 uschar *base62_chars=
 453     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 454 #else
 455 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 456 #endif
 457
 458 uschar *bi_command             = NULL;
 459 uschar *big_buffer             = NULL;
 460 int     big_buffer_size        = BIG_BUFFER_SIZE;
 461 #ifdef EXPERIMENTAL_BRIGHTMAIL
 462 uschar *bmi_alt_location       = NULL;
 463 uschar *bmi_base64_tracker_verdict = NULL;
 464 uschar *bmi_base64_verdict     = NULL;
 465 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 466 int     bmi_deliver            = 1;
 467 int     bmi_run                = 0;
 468 uschar *bmi_verdicts           = NULL;
 469 #endif
 470 int     body_8bitmime          = 0;
 471 int     body_linecount         = 0;
 472 int     body_zerocount         = 0;
 473 uschar *bounce_message_file    = NULL;
 474 uschar *bounce_message_text    = NULL;
 475 uschar *bounce_recipient       = NULL;
 476 BOOL    bounce_return_body     = TRUE;
 477 int     bounce_return_linesize_limit = 998;
 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 *chunking_advertise_hosts = US"*";
 496 uschar *client_authenticator   = NULL;
 497 uschar *client_authenticated_id = NULL;
 498 uschar *client_authenticated_sender = NULL;
 499 int     clmacro_count          = 0;
 500 uschar *clmacros[MAX_CLMACROS];
 501 BOOL    config_changed         = FALSE;
 502 FILE   *config_file            = NULL;
 503 uschar *config_filename        = NULL;
 504 int     config_lineno          = 0;
 505 #ifdef CONFIGURE_GROUP
 506 gid_t   config_gid             = CONFIGURE_GROUP;
 507 #endif
 508 uschar *config_main_filelist   = US CONFIGURE_FILE
 509                          "\0<-----------Space to patch configure_filename->";
 510 uschar *config_main_filename   = NULL;
 511 uschar *config_main_directory  = NULL;
 512
 513 #ifdef CONFIGURE_OWNER
 514 uid_t   config_uid             = CONFIGURE_OWNER;
 515 #endif
 516
 517 int     connection_max_messages= -1;
 518 uschar *continue_hostname      = NULL;
 519 uschar *continue_host_address  = NULL;
 520 BOOL    continue_more          = FALSE;
 521 int     continue_sequence      = 1;
 522 uschar *continue_transport     = NULL;
 523
 524 uschar *csa_status             = NULL;
 525 cut_t   cutthrough = {
 526   FALSE,                                /* delivery: when to attempt */
 527   -1,                                   /* fd: open connection */
 528   0,                                    /* nrcpt: number of addresses */
 529 };
 530
 531 BOOL    daemon_listen          = FALSE;
 532 uschar *daemon_smtp_port       = US"smtp";
 533 int     daemon_startup_retries = 9;
 534 int     daemon_startup_sleep   = 30;
 535
 536 #ifdef EXPERIMENTAL_DCC
 537 BOOL    dcc_direct_add_header  = FALSE;
 538 uschar *dcc_header             = NULL;
 539 uschar *dcc_result             = NULL;
 540 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 541 uschar *dccifd_options         = US"header";
 542 #endif
 543
 544 BOOL    debug_daemon           = FALSE;
 545 int     debug_fd               = -1;
 546 FILE   *debug_file             = NULL;
 547 int     debug_notall[]         = {
 548   Di_memory,
 549   -1
 550 };
 551 bit_table debug_options[]      = { /* must be in alphabetical order */
 552   BIT_TABLE(D, acl),
 553   BIT_TABLE(D, all),
 554   BIT_TABLE(D, auth),
 555   BIT_TABLE(D, deliver),
 556   BIT_TABLE(D, dns),
 557   BIT_TABLE(D, dnsbl),
 558   BIT_TABLE(D, exec),
 559   BIT_TABLE(D, expand),
 560   BIT_TABLE(D, filter),
 561   BIT_TABLE(D, hints_lookup),
 562   BIT_TABLE(D, host_lookup),
 563   BIT_TABLE(D, ident),
 564   BIT_TABLE(D, interface),
 565   BIT_TABLE(D, lists),
 566   BIT_TABLE(D, load),
 567   BIT_TABLE(D, local_scan),
 568   BIT_TABLE(D, lookup),
 569   BIT_TABLE(D, memory),
 570   BIT_TABLE(D, pid),
 571   BIT_TABLE(D, process_info),
 572   BIT_TABLE(D, queue_run),
 573   BIT_TABLE(D, receive),
 574   BIT_TABLE(D, resolver),
 575   BIT_TABLE(D, retry),
 576   BIT_TABLE(D, rewrite),
 577   BIT_TABLE(D, route),
 578   BIT_TABLE(D, timestamp),
 579   BIT_TABLE(D, tls),
 580   BIT_TABLE(D, transport),
 581   BIT_TABLE(D, uid),
 582   BIT_TABLE(D, verify),
 583 };
 584 int     debug_options_count    = nelem(debug_options);
 585
 586 unsigned int debug_selector    = 0;
 587 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 588 uschar *delay_warning_condition=
 589   US"${if or {"
 590             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 591             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 592             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 593             "} {no}{yes}}";
 594 BOOL    delivery_date_remove   = TRUE;
 595 uschar *deliver_address_data   = NULL;
 596 int     deliver_datafile       = -1;
 597 const uschar *deliver_domain   = NULL;
 598 uschar *deliver_domain_data    = NULL;
 599 const uschar *deliver_domain_orig = NULL;
 600 const uschar *deliver_domain_parent = NULL;
 601 BOOL    deliver_drop_privilege = FALSE;
 602 BOOL    deliver_firsttime      = FALSE;
 603 BOOL    deliver_force          = FALSE;
 604 BOOL    deliver_freeze         = FALSE;
 605 time_t  deliver_frozen_at      = 0;
 606 uschar *deliver_home           = NULL;
 607 const uschar *deliver_host     = NULL;
 608 const uschar *deliver_host_address = NULL;
 609 int     deliver_host_port      = 0;
 610 uschar *deliver_in_buffer      = NULL;
 611 ino_t   deliver_inode          = 0;
 612 uschar *deliver_localpart      = NULL;
 613 uschar *deliver_localpart_data = NULL;
 614 uschar *deliver_localpart_orig = NULL;
 615 uschar *deliver_localpart_parent = NULL;
 616 uschar *deliver_localpart_prefix = NULL;
 617 uschar *deliver_localpart_suffix = NULL;
 618 BOOL    deliver_force_thaw     = FALSE;
 619 BOOL    deliver_manual_thaw    = FALSE;
 620 uschar *deliver_out_buffer     = NULL;
 621 int     deliver_queue_load_max = -1;
 622 address_item  *deliver_recipients = NULL;
 623 uschar *deliver_selectstring   = NULL;
 624 BOOL    deliver_selectstring_regex = FALSE;
 625 uschar *deliver_selectstring_sender = NULL;
 626 BOOL    deliver_selectstring_sender_regex = FALSE;
 627 BOOL    disable_callout_flush  = FALSE;
 628 BOOL    disable_delay_flush    = FALSE;
 629 #ifdef ENABLE_DISABLE_FSYNC
 630 BOOL    disable_fsync          = FALSE;
 631 #endif
 632 BOOL    disable_ipv6           = FALSE;
 633 BOOL    disable_logging        = FALSE;
 634
 635 #ifndef DISABLE_DKIM
 636 BOOL    dkim_collect_input       = FALSE;
 637 uschar *dkim_cur_signer          = NULL;
 638 BOOL    dkim_disable_verify      = FALSE;
 639 int     dkim_key_length          = 0;
 640 uschar *dkim_signers             = NULL;
 641 uschar *dkim_signing_domain      = NULL;
 642 uschar *dkim_signing_selector    = NULL;
 643 uschar *dkim_verify_signers      = US"$dkim_signers";
 644 #endif
 645 #ifdef EXPERIMENTAL_DMARC
 646 BOOL    dmarc_has_been_checked  = FALSE;
 647 uschar *dmarc_ar_header         = NULL;
 648 uschar *dmarc_domain_policy     = NULL;
 649 uschar *dmarc_forensic_sender   = NULL;
 650 uschar *dmarc_history_file      = NULL;
 651 uschar *dmarc_status            = NULL;
 652 uschar *dmarc_status_text       = NULL;
 653 uschar *dmarc_tld_file          = NULL;
 654 uschar *dmarc_used_domain       = NULL;
 655 BOOL    dmarc_disable_verify    = FALSE;
 656 BOOL    dmarc_enable_forensic   = FALSE;
 657 #endif
 658
 659 uschar *dns_again_means_nonexist = NULL;
 660 int     dns_csa_search_limit   = 5;
 661 BOOL    dns_csa_use_reverse    = TRUE;
 662 #ifdef EXPERIMENTAL_DANE
 663 int     dns_dane_ok            = -1;
 664 #endif
 665 uschar *dns_ipv4_lookup        = NULL;
 666 int     dns_retrans            = 0;
 667 int     dns_retry              = 0;
 668 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 669 uschar *dns_trust_aa           = NULL;
 670 int     dns_use_edns0          = -1; /* <0 = not coerced */
 671 uschar *dnslist_domain         = NULL;
 672 uschar *dnslist_matched        = NULL;
 673 uschar *dnslist_text           = NULL;
 674 uschar *dnslist_value          = NULL;
 675 tree_node *domainlist_anchor   = NULL;
 676 int     domainlist_count       = 0;
 677 BOOL    dont_deliver           = FALSE;
 678 BOOL    dot_ends               = TRUE;
 679 BOOL    drop_cr                = FALSE;         /* No longer used */
 680 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 681
 682 BOOL    enable_dollar_recipients = FALSE;
 683 BOOL    envelope_to_remove     = TRUE;
 684 int     errno_quota            = ERRNO_QUOTA;
 685 uschar *errors_copy            = NULL;
 686 int     error_handling         = ERRORS_SENDER;
 687 uschar *errors_reply_to        = NULL;
 688 int     errors_sender_rc       = EXIT_FAILURE;
 689 #ifndef DISABLE_EVENT
 690 uschar *event_action             = NULL;        /* expansion for delivery events */
 691 uschar *event_data               = NULL;        /* auxilary data variable for event */
 692 int     event_defer_errno        = 0;
 693 const uschar *event_name         = NULL;        /* event name variable */
 694 #endif
 695
 696
 697 gid_t   exim_gid               = EXIM_GID;
 698 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 699 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 700                         "\0<---------------Space to patch exim_path->";
 701 uid_t   exim_uid               = EXIM_UID;
 702 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 703 int     expand_forbid          = 0;
 704 int     expand_nlength[EXPAND_MAXN+1];
 705 int     expand_nmax            = -1;
 706 uschar *expand_nstring[EXPAND_MAXN+1];
 707 BOOL    expand_string_forcedfail = FALSE;
 708 uschar *expand_string_message;
 709 BOOL    extract_addresses_remove_arguments = TRUE;
 710 uschar *extra_local_interfaces = NULL;
 711
 712 int     fake_response          = OK;
 713 uschar *fake_response_text     = US"Your message has been rejected but is "
 714                                    "being kept for evaluation.\nIf it was a "
 715                                    "legitimate message, it may still be "
 716                                    "delivered to the target recipient(s).";
 717 int     filter_n[FILTER_VARIABLE_COUNT];
 718 BOOL    filter_running         = FALSE;
 719 int     filter_sn[FILTER_VARIABLE_COUNT];
 720 int     filter_test            = FTEST_NONE;
 721 uschar *filter_test_sfile      = NULL;
 722 uschar *filter_test_ufile      = NULL;
 723 uschar *filter_thisaddress     = NULL;
 724 int     finduser_retries       = 0;
 725 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 726 uschar *freeze_tell            = NULL;
 727 uschar *freeze_tell_config     = NULL;
 728 uschar *fudged_queue_times     = US"";
 729
 730 uschar *gecos_name             = NULL;
 731 uschar *gecos_pattern          = NULL;
 732 rewrite_rule  *global_rewrite_rules = NULL;
 733
 734 uschar *headers_charset        = US HEADERS_CHARSET;
 735 int     header_insert_maxlen   = 64 * 1024;
 736 header_line  *header_last      = NULL;
 737 header_line  *header_list      = NULL;
 738 int     header_maxsize         = HEADER_MAXSIZE;
 739 int     header_line_maxsize    = 0;
 740
 741 header_name header_names[] = {
 742   { US"bcc",            3, TRUE,  htype_bcc },
 743   { US"cc",             2, TRUE,  htype_cc },
 744   { US"date",           4, TRUE,  htype_date },
 745   { US"delivery-date", 13, FALSE, htype_delivery_date },
 746   { US"envelope-to",   11, FALSE, htype_envelope_to },
 747   { US"from",           4, TRUE,  htype_from },
 748   { US"message-id",    10, TRUE,  htype_id },
 749   { US"received",       8, FALSE, htype_received },
 750   { US"reply-to",       8, FALSE, htype_reply_to },
 751   { US"return-path",   11, FALSE, htype_return_path },
 752   { US"sender",         6, TRUE,  htype_sender },
 753   { US"subject",        7, FALSE, htype_subject },
 754   { US"to",             2, TRUE,  htype_to }
 755 };
 756
 757 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 758
 759 BOOL    header_rewritten       = FALSE;
 760 uschar *helo_accept_junk_hosts = NULL;
 761 uschar *helo_allow_chars       = US"";
 762 uschar *helo_lookup_domains    = US"@ : @[]";
 763 uschar *helo_try_verify_hosts  = NULL;
 764 BOOL    helo_verified          = FALSE;
 765 BOOL    helo_verify_failed     = FALSE;
 766 uschar *helo_verify_hosts      = NULL;
 767 const uschar *hex_digits       = CUS"0123456789abcdef";
 768 uschar *hold_domains           = NULL;
 769 BOOL    host_checking          = FALSE;
 770 BOOL    host_checking_callout  = FALSE;
 771 uschar *host_data              = NULL;
 772 BOOL    host_find_failed_syntax= FALSE;
 773 uschar *host_lookup            = NULL;
 774 BOOL    host_lookup_deferred   = FALSE;
 775 BOOL    host_lookup_failed     = FALSE;
 776 uschar *host_lookup_order      = US"bydns:byaddr";
 777 uschar *host_lookup_msg        = US"";
 778 int     host_number            = 0;
 779 uschar *host_number_string     = NULL;
 780 uschar *host_reject_connection = NULL;
 781 tree_node *hostlist_anchor     = NULL;
 782 int     hostlist_count         = 0;
 783 uschar *hosts_treat_as_local   = NULL;
 784 uschar *hosts_connection_nolog = NULL;
 785
 786 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 787 BOOL    ignore_fromline_local  = FALSE;
 788 uschar *ignore_fromline_hosts  = NULL;
 789 BOOL    inetd_wait_mode        = FALSE;
 790 int     inetd_wait_timeout     = -1;
 791 uschar *initial_cwd            = NULL;
 792 uschar *interface_address      = NULL;
 793 int     interface_port         = -1;
 794 BOOL    is_inetd               = FALSE;
 795 uschar *iterate_item           = NULL;
 796
 797 int     journal_fd             = -1;
 798
 799 uschar *keep_environment       = NULL;
 800
 801 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 802
 803 uschar *eldap_dn               = NULL;
 804 int     load_average           = -2;
 805 BOOL    local_error_message    = FALSE;
 806 BOOL    local_from_check       = TRUE;
 807 uschar *local_from_prefix      = NULL;
 808 uschar *local_from_suffix      = NULL;
 809
 810 #if HAVE_IPV6
 811 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 812 #else
 813 uschar *local_interfaces       = US"0.0.0.0";
 814 #endif
 815
 816 uschar *local_scan_data        = NULL;
 817 int     local_scan_timeout     = 5*60;
 818 BOOL    local_sender_retain    = FALSE;
 819 gid_t   local_user_gid         = (gid_t)(-1);
 820 uid_t   local_user_uid         = (uid_t)(-1);
 821
 822 tree_node *localpartlist_anchor= NULL;
 823 int     localpartlist_count    = 0;
 824 uschar *log_buffer             = NULL;
 825
 826 int     log_default[]          = { /* for initializing log_selector */
 827   Li_acl_warn_skipped,
 828   Li_connection_reject,
 829   Li_delay_delivery,
 830   Li_dnslist_defer,
 831   Li_etrn,
 832   Li_host_lookup_failed,
 833   Li_lost_incoming_connection,
 834   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 835   Li_queue_run,
 836   Li_rejected_header,
 837   Li_retry_defer,
 838   Li_sender_verify_fail,
 839   Li_size_reject,
 840   Li_skip_delivery,
 841   Li_smtp_confirmation,
 842   Li_tls_certificate_verified,
 843   Li_tls_cipher,
 844   -1
 845 };
 846
 847 uschar *log_file_path          = US LOG_FILE_PATH
 848                            "\0<--------------Space to patch log_file_path->";
 849
 850 int     log_notall[]           = {
 851   -1
 852 };
 853 bit_table log_options[]        = { /* must be in alphabetical order */
 854   BIT_TABLE(L, 8bitmime),
 855   BIT_TABLE(L, acl_warn_skipped),
 856   BIT_TABLE(L, address_rewrite),
 857   BIT_TABLE(L, all),
 858   BIT_TABLE(L, all_parents),
 859   BIT_TABLE(L, arguments),
 860   BIT_TABLE(L, connection_reject),
 861   BIT_TABLE(L, delay_delivery),
 862   BIT_TABLE(L, deliver_time),
 863   BIT_TABLE(L, delivery_size),
 864   BIT_TABLE(L, dnslist_defer),
 865   BIT_TABLE(L, dnssec),
 866   BIT_TABLE(L, etrn),
 867   BIT_TABLE(L, host_lookup_failed),
 868   BIT_TABLE(L, ident_timeout),
 869   BIT_TABLE(L, incoming_interface),
 870   BIT_TABLE(L, incoming_port),
 871   BIT_TABLE(L, lost_incoming_connection),
 872   BIT_TABLE(L, outgoing_interface),
 873   BIT_TABLE(L, outgoing_port),
 874   BIT_TABLE(L, pid),
 875 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 876   BIT_TABLE(L, proxy),
 877 #endif
 878   BIT_TABLE(L, queue_run),
 879   BIT_TABLE(L, queue_time),
 880   BIT_TABLE(L, queue_time_overall),
 881   BIT_TABLE(L, received_recipients),
 882   BIT_TABLE(L, received_sender),
 883   BIT_TABLE(L, rejected_header),
 884   { US"rejected_headers", Li_rejected_header },
 885   BIT_TABLE(L, retry_defer),
 886   BIT_TABLE(L, return_path_on_delivery),
 887   BIT_TABLE(L, sender_on_delivery),
 888   BIT_TABLE(L, sender_verify_fail),
 889   BIT_TABLE(L, size_reject),
 890   BIT_TABLE(L, skip_delivery),
 891   BIT_TABLE(L, smtp_confirmation),
 892   BIT_TABLE(L, smtp_connection),
 893   BIT_TABLE(L, smtp_incomplete_transaction),
 894   BIT_TABLE(L, smtp_mailauth),
 895   BIT_TABLE(L, smtp_no_mail),
 896   BIT_TABLE(L, smtp_protocol_error),
 897   BIT_TABLE(L, smtp_syntax_error),
 898   BIT_TABLE(L, subject),
 899   BIT_TABLE(L, tls_certificate_verified),
 900   BIT_TABLE(L, tls_cipher),
 901   BIT_TABLE(L, tls_peerdn),
 902   BIT_TABLE(L, tls_sni),
 903   BIT_TABLE(L, unknown_in_list),
 904 };
 905 int     log_options_count      = nelem(log_options);
 906
 907 int     log_reject_target      = 0;
 908 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 909 uschar *log_selector_string    = NULL;
 910 FILE   *log_stderr             = NULL;
 911 BOOL    log_testing_mode       = FALSE;
 912 BOOL    log_timezone           = FALSE;
 913 uschar *login_sender_address   = NULL;
 914 uschar *lookup_dnssec_authenticated = NULL;
 915 int     lookup_open_max        = 25;
 916 uschar *lookup_value           = NULL;
 917
 918 macro_item  *macros            = NULL;
 919 uschar *mailstore_basename     = NULL;
 920 #ifdef WITH_CONTENT_SCAN
 921 uschar *malware_name           = NULL;  /* Virus Name */
 922 #endif
 923 int     max_received_linelength= 0;
 924 int     max_username_length    = 0;
 925 int     message_age            = 0;
 926 uschar *message_body           = NULL;
 927 uschar *message_body_end       = NULL;
 928 BOOL    message_body_newlines  = FALSE;
 929 int     message_body_size      = 0;
 930 int     message_body_visible   = 500;
 931 int     message_ended          = END_NOTSTARTED;
 932 uschar *message_headers        = NULL;
 933 uschar *message_id;
 934 uschar *message_id_domain      = NULL;
 935 uschar *message_id_text        = NULL;
 936 struct timeval message_id_tv   = { 0, 0 };
 937 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 938 uschar *message_id_external;
 939 int     message_linecount      = 0;
 940 BOOL    message_logs           = TRUE;
 941 int     message_size           = 0;
 942 uschar *message_size_limit     = US"50M";
 943 #ifdef SUPPORT_I18N
 944 BOOL    message_smtputf8       = FALSE;
 945 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 946 #endif
 947 uschar  message_subdir[2]      = { 0, 0 };
 948 uschar *message_reference      = NULL;
 949
 950 /* MIME ACL expandables */
 951 #ifdef WITH_CONTENT_SCAN
 952 int     mime_anomaly_level     = 0;
 953 const uschar *mime_anomaly_text      = NULL;
 954 uschar *mime_boundary          = NULL;
 955 uschar *mime_charset           = NULL;
 956 uschar *mime_content_description = NULL;
 957 uschar *mime_content_disposition = NULL;
 958 uschar *mime_content_id        = NULL;
 959 unsigned int mime_content_size = 0;
 960 uschar *mime_content_transfer_encoding = NULL;
 961 uschar *mime_content_type      = NULL;
 962 uschar *mime_decoded_filename  = NULL;
 963 uschar *mime_filename          = NULL;
 964 int     mime_is_multipart      = 0;
 965 int     mime_is_coverletter    = 0;
 966 int     mime_is_rfc822         = 0;
 967 int     mime_part_count        = -1;
 968 #endif
 969
 970 BOOL    mua_wrapper            = FALSE;
 971
 972 uid_t  *never_users            = NULL;
 973 #ifdef WITH_CONTENT_SCAN
 974 BOOL    no_mbox_unspool        = FALSE;
 975 #endif
 976 BOOL    no_multiline_responses = FALSE;
 977
 978 uid_t   original_euid;
 979 gid_t   originator_gid;
 980 uschar *originator_login       = NULL;
 981 uschar *originator_name        = NULL;
 982 uid_t   originator_uid;
 983 uschar *override_local_interfaces = NULL;
 984 uschar *override_pid_file_path = NULL;
 985
 986 BOOL    parse_allow_group      = FALSE;
 987 BOOL    parse_found_group      = FALSE;
 988 uschar *percent_hack_domains   = NULL;
 989 uschar *pid_file_path          = US PID_FILE_PATH
 990                            "\0<--------------Space to patch pid_file_path->";
 991 BOOL    pipelining_enable      = TRUE;
 992 uschar *pipelining_advertise_hosts = US"*";
 993 BOOL    preserve_message_logs  = FALSE;
 994 uschar *primary_hostname       = NULL;
 995 BOOL    print_topbitchars      = FALSE;
 996 uschar  process_info[PROCESS_INFO_SIZE];
 997 int     process_info_len       = 0;
 998 uschar *process_log_path       = NULL;
 999 BOOL    prod_requires_admin    = TRUE;
1000
1001 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1002 uschar *hosts_proxy            = US"";
1003 uschar *proxy_external_address = US"";
1004 int     proxy_external_port    = 0;
1005 uschar *proxy_local_address    = US"";
1006 int     proxy_local_port       = 0;
1007 BOOL    proxy_session          = FALSE;
1008 BOOL    proxy_session_failed   = FALSE;
1009 #endif
1010
1011 uschar *prvscheck_address      = NULL;
1012 uschar *prvscheck_keynum       = NULL;
1013 uschar *prvscheck_result       = NULL;
1014
1015
1016 const uschar *qualify_domain_recipient = NULL;
1017 uschar *qualify_domain_sender  = NULL;
1018 BOOL    queue_2stage           = FALSE;
1019 uschar *queue_domains          = NULL;
1020 int     queue_interval         = -1;
1021 BOOL    queue_list_requires_admin = TRUE;
1022 uschar *queue_name             = US"";
1023 BOOL    queue_only             = FALSE;
1024 uschar *queue_only_file        = NULL;
1025 int     queue_only_load        = -1;
1026 BOOL    queue_only_load_latch  = TRUE;
1027 BOOL    queue_only_override    = TRUE;
1028 BOOL    queue_only_policy      = FALSE;
1029 BOOL    queue_run_first_delivery = FALSE;
1030 BOOL    queue_run_force        = FALSE;
1031 BOOL    queue_run_in_order     = FALSE;
1032 BOOL    queue_run_local        = FALSE;
1033 uschar *queue_run_max          = US"5";
1034 pid_t   queue_run_pid          = (pid_t)0;
1035 int     queue_run_pipe         = -1;
1036 BOOL    queue_running          = FALSE;
1037 BOOL    queue_smtp             = FALSE;
1038 uschar *queue_smtp_domains     = NULL;
1039
1040 unsigned int random_seed       = 0;
1041 tree_node *ratelimiters_cmd    = NULL;
1042 tree_node *ratelimiters_conn   = NULL;
1043 tree_node *ratelimiters_mail   = NULL;
1044 uschar *raw_active_hostname    = NULL;
1045 uschar *raw_sender             = NULL;
1046 uschar **raw_recipients        = NULL;
1047 int     raw_recipients_count   = 0;
1048
1049 int     rcpt_count             = 0;
1050 int     rcpt_fail_count        = 0;
1051 int     rcpt_defer_count       = 0;
1052 gid_t   real_gid;
1053 uid_t   real_uid;
1054 BOOL    really_exim            = TRUE;
1055 BOOL    receive_call_bombout   = FALSE;
1056 int     receive_linecount      = 0;
1057 int     receive_messagecount   = 0;
1058 int     receive_timeout        = 0;
1059 int     received_count         = 0;
1060 uschar *received_for           = NULL;
1061
1062 /*  This is the default text for Received headers generated by Exim. The
1063 date  will be automatically added on the end. */
1064
1065 uschar *received_header_text   = US
1066      "Received: "
1067      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1068      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1069      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1070      "by $primary_hostname "
1071      "${if def:received_protocol {with $received_protocol}} "
1072      #ifdef SUPPORT_TLS
1073      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1074      #endif
1075      "(Exim $version_number)\n\t"
1076      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1077      "id $message_exim_id"
1078      "${if def:received_for {\n\tfor $received_for}}"
1079      "\0<---------------Space to patch received_header_text->";
1080
1081 int     received_headers_max   = 30;
1082 uschar *received_protocol      = NULL;
1083 int     received_time          = 0;
1084 uschar *recipient_data         = NULL;
1085 uschar *recipient_unqualified_hosts = NULL;
1086 uschar *recipient_verify_failure = NULL;
1087 int     recipients_count       = 0;
1088 BOOL    recipients_discarded   = FALSE;
1089 recipient_item  *recipients_list = NULL;
1090 int     recipients_list_max    = 0;
1091 int     recipients_max         = 0;
1092 BOOL    recipients_max_reject  = FALSE;
1093 const pcre *regex_AUTH         = NULL;
1094 const pcre *regex_check_dns_names = NULL;
1095 const pcre *regex_From         = NULL;
1096 const pcre *regex_IGNOREQUOTA  = NULL;
1097 const pcre *regex_PIPELINING   = NULL;
1098 const pcre *regex_SIZE         = NULL;
1099 const pcre *regex_ismsgid      = NULL;
1100 const pcre *regex_smtp_code    = NULL;
1101 uschar *regex_vars[REGEX_VARS];
1102 #ifdef WHITELIST_D_MACROS
1103 const pcre *regex_whitelisted_macro = NULL;
1104 #endif
1105 #ifdef WITH_CONTENT_SCAN
1106 uschar *regex_match_string     = NULL;
1107 #endif
1108 int     remote_delivery_count  = 0;
1109 int     remote_max_parallel    = 2;
1110 uschar *remote_sort_domains    = NULL;
1111 int     retry_data_expire      = 7*24*60*60;
1112 int     retry_interval_max     = 24*60*60;
1113 int     retry_maximum_timeout  = 0;        /* set from retry config */
1114 retry_config  *retries         = NULL;
1115 uschar *return_path            = NULL;
1116 BOOL    return_path_remove     = TRUE;
1117 int     rewrite_existflags     = 0;
1118 uschar *rfc1413_hosts          = US"@[]";
1119 int     rfc1413_query_timeout  = 0;
1120 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1121 uid_t   root_gid               = ROOT_GID;
1122 uid_t   root_uid               = ROOT_UID;
1123
1124 router_instance  *routers  = NULL;
1125 router_instance  router_defaults = {
1126     NULL,                      /* chain pointer */
1127     NULL,                      /* name */
1128     NULL,                      /* info */
1129     NULL,                      /* private options block pointer */
1130     NULL,                      /* driver name */
1131
1132     NULL,                      /* address_data */
1133 #ifdef EXPERIMENTAL_BRIGHTMAIL
1134     NULL,                      /* bmi_rule */
1135 #endif
1136     NULL,                      /* cannot_route_message */
1137     NULL,                      /* condition */
1138     NULL,                      /* current_directory */
1139     NULL,                      /* debug_string */
1140     NULL,                      /* domains */
1141     NULL,                      /* errors_to */
1142     NULL,                      /* expand_gid */
1143     NULL,                      /* expand_uid */
1144     NULL,                      /* expand_more */
1145     NULL,                      /* expand_unseen */
1146     NULL,                      /* extra_headers */
1147     NULL,                      /* fallback_hosts */
1148     NULL,                      /* home_directory */
1149     NULL,                      /* ignore_target_hosts */
1150     NULL,                      /* local_parts */
1151     NULL,                      /* pass_router_name */
1152     NULL,                      /* prefix */
1153     NULL,                      /* redirect_router_name */
1154     NULL,                      /* remove_headers */
1155     NULL,                      /* require_files */
1156     NULL,                      /* router_home_directory */
1157     US"freeze",                /* self */
1158     NULL,                      /* senders */
1159     NULL,                      /* suffix */
1160     NULL,                      /* translate_ip_address */
1161     NULL,                      /* transport_name */
1162
1163     TRUE,                      /* address_test */
1164 #ifdef EXPERIMENTAL_BRIGHTMAIL
1165     FALSE,                     /* bmi_deliver_alternate */
1166     FALSE,                     /* bmi_deliver_default */
1167     FALSE,                     /* bmi_dont_deliver */
1168 #endif
1169     TRUE,                      /* expn */
1170     FALSE,                     /* caseful_local_part */
1171     FALSE,                     /* check_local_user */
1172     FALSE,                     /* disable_logging */
1173     FALSE,                     /* fail_verify_recipient */
1174     FALSE,                     /* fail_verify_sender */
1175     FALSE,                     /* gid_set */
1176     FALSE,                     /* initgroups */
1177     TRUE_UNSET,                /* log_as_local */
1178     TRUE,                      /* more */
1179     FALSE,                     /* pass_on_timeout */
1180     FALSE,                     /* prefix_optional */
1181     TRUE,                      /* repeat_use */
1182     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1183     FALSE,                     /* same_domain_copy_routing */
1184     FALSE,                     /* self_rewrite */
1185     FALSE,                     /* suffix_optional */
1186     FALSE,                     /* verify_only */
1187     TRUE,                      /* verify_recipient */
1188     TRUE,                      /* verify_sender */
1189     FALSE,                     /* uid_set */
1190     FALSE,                     /* unseen */
1191     FALSE,                     /* dsn_lasthop */
1192
1193     self_freeze,               /* self_code */
1194     (uid_t)(-1),               /* uid */
1195     (gid_t)(-1),               /* gid */
1196
1197     NULL,                      /* fallback_hostlist */
1198     NULL,                      /* transport instance */
1199     NULL,                      /* pass_router */
1200     NULL,                      /* redirect_router */
1201
1202     { NULL, NULL },            /* dnssec_domains {require,request} */
1203 };
1204
1205 uschar *router_name            = NULL;
1206
1207 ip_address_item *running_interfaces = NULL;
1208 BOOL    running_in_test_harness = FALSE;
1209
1210 /* This is a weird one. The following string gets patched in the binary by the
1211 script that sets up a copy of Exim for running in the test harness. It seems
1212 that compilers are now clever, and share constant strings if they can.
1213 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1214 make use of the end of this string in order to save space. So the patching then
1215 wrecks this. We defeat this optimization by adding some additional characters
1216 onto the end of the string. */
1217
1218 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1219
1220 int     runrc                  = 0;
1221
1222 uschar *search_error_message   = NULL;
1223 BOOL    search_find_defer      = FALSE;
1224 uschar *self_hostname          = NULL;
1225 uschar *sender_address         = NULL;
1226 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1227 uschar *sender_address_data    = NULL;
1228 BOOL    sender_address_forced  = FALSE;
1229 uschar *sender_address_unrewritten = NULL;
1230 uschar *sender_data            = NULL;
1231 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1232 uschar *sender_fullhost        = NULL;
1233 BOOL    sender_helo_dnssec     = FALSE;
1234 uschar *sender_helo_name       = NULL;
1235 uschar **sender_host_aliases   = &no_aliases;
1236 uschar *sender_host_address    = NULL;
1237 uschar *sender_host_authenticated = NULL;
1238 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1239 BOOL    sender_host_dnssec     = FALSE;
1240 uschar *sender_host_name       = NULL;
1241 int     sender_host_port       = 0;
1242 BOOL    sender_host_notsocket  = FALSE;
1243 BOOL    sender_host_unknown    = FALSE;
1244 uschar *sender_ident           = NULL;
1245 BOOL    sender_local           = FALSE;
1246 BOOL    sender_name_forced     = FALSE;
1247 uschar *sender_rate            = NULL;
1248 uschar *sender_rate_limit      = NULL;
1249 uschar *sender_rate_period     = NULL;
1250 uschar *sender_rcvhost         = NULL;
1251 BOOL    sender_set_untrusted   = FALSE;
1252 uschar *sender_unqualified_hosts = NULL;
1253 uschar *sender_verify_failure = NULL;
1254 address_item *sender_verified_list  = NULL;
1255 address_item *sender_verified_failed = NULL;
1256 int     sender_verified_rc     = -1;
1257 BOOL    sender_verified_responded = FALSE;
1258 uschar *sending_ip_address     = NULL;
1259 int     sending_port           = -1;
1260 SIGNAL_BOOL sigalrm_seen       = FALSE;
1261 uschar **sighup_argv           = NULL;
1262 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1263 int     smtp_accept_count      = 0;
1264 BOOL    smtp_accept_keepalive  = TRUE;
1265 int     smtp_accept_max        = 20;
1266 int     smtp_accept_max_nonmail= 10;
1267 uschar *smtp_accept_max_nonmail_hosts = US"*";
1268 int     smtp_accept_max_per_connection = 1000;
1269 uschar *smtp_accept_max_per_host = NULL;
1270 int     smtp_accept_queue      = 0;
1271 int     smtp_accept_queue_per_connection = 10;
1272 int     smtp_accept_reserve    = 0;
1273 uschar *smtp_active_hostname   = NULL;
1274 BOOL    smtp_authenticated     = FALSE;
1275 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1276                              "Exim $version_number $tod_full"
1277                              "\0<---------------Space to patch smtp_banner->";
1278 BOOL    smtp_batched_input     = FALSE;
1279 BOOL    smtp_check_spool_space = TRUE;
1280 int     smtp_ch_index          = 0;
1281 uschar *smtp_cmd_argument      = NULL;
1282 uschar *smtp_cmd_buffer        = NULL;
1283 time_t  smtp_connection_start  = 0;
1284 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1285 int     smtp_connect_backlog   = 20;
1286 double  smtp_delay_mail        = 0.0;
1287 double  smtp_delay_rcpt        = 0.0;
1288 BOOL    smtp_enforce_sync      = TRUE;
1289 FILE   *smtp_in                = NULL;
1290 BOOL    smtp_input             = FALSE;
1291 int     smtp_load_reserve      = -1;
1292 int     smtp_mailcmd_count     = 0;
1293 FILE   *smtp_out               = NULL;
1294 uschar *smtp_etrn_command      = NULL;
1295 BOOL    smtp_etrn_serialize    = TRUE;
1296 int     smtp_max_synprot_errors= 3;
1297 int     smtp_max_unknown_commands = 3;
1298 uschar *smtp_notquit_reason    = NULL;
1299 uschar *smtp_ratelimit_hosts   = NULL;
1300 uschar *smtp_ratelimit_mail    = NULL;
1301 uschar *smtp_ratelimit_rcpt    = NULL;
1302 uschar *smtp_read_error        = US"";
1303 int     smtp_receive_timeout   = 5*60;
1304 uschar *smtp_receive_timeout_s = NULL;
1305 uschar *smtp_reserve_hosts     = NULL;
1306 BOOL    smtp_return_error_details = FALSE;
1307 int     smtp_rlm_base          = 0;
1308 double  smtp_rlm_factor        = 0.0;
1309 int     smtp_rlm_limit         = 0;
1310 int     smtp_rlm_threshold     = INT_MAX;
1311 int     smtp_rlr_base          = 0;
1312 double  smtp_rlr_factor        = 0.0;
1313 int     smtp_rlr_limit         = 0;
1314 int     smtp_rlr_threshold     = INT_MAX;
1315 BOOL    smtp_use_pipelining    = FALSE;
1316 BOOL    smtp_use_size          = FALSE;
1317 #ifdef SUPPORT_I18N
1318 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1319 #endif
1320
1321 #ifdef WITH_CONTENT_SCAN
1322 uschar *spamd_address          = US"127.0.0.1 783";
1323 uschar *spam_bar               = NULL;
1324 uschar *spam_report            = NULL;
1325 uschar *spam_action            = NULL;
1326 uschar *spam_score             = NULL;
1327 uschar *spam_score_int         = NULL;
1328 #endif
1329 #ifdef EXPERIMENTAL_SPF
1330 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1331 uschar *spf_header_comment     = NULL;
1332 uschar *spf_received           = NULL;
1333 uschar *spf_result             = NULL;
1334 uschar *spf_smtp_comment       = NULL;
1335 #endif
1336
1337 BOOL    split_spool_directory  = FALSE;
1338 uschar *spool_directory        = US SPOOL_DIRECTORY
1339                            "\0<--------------Space to patch spool_directory->";
1340 #ifdef EXPERIMENTAL_SRS
1341 uschar *srs_config             = NULL;
1342 uschar *srs_db_address         = NULL;
1343 uschar *srs_db_key             = NULL;
1344 int     srs_hashlength         = 6;
1345 int     srs_hashmin            = -1;
1346 int     srs_maxage             = 31;
1347 uschar *srs_orig_recipient     = NULL;
1348 uschar *srs_orig_sender        = NULL;
1349 uschar *srs_recipient          = NULL;
1350 uschar *srs_secrets            = NULL;
1351 uschar *srs_status             = NULL;
1352 BOOL    srs_usehash            = TRUE;
1353 BOOL    srs_usetimestamp       = TRUE;
1354 #endif
1355 BOOL    strict_acl_vars        = FALSE;
1356 int     string_datestamp_offset= -1;
1357 int     string_datestamp_length= 0;
1358 int     string_datestamp_type  = -1;
1359 BOOL    strip_excess_angle_brackets = FALSE;
1360 BOOL    strip_trailing_dot     = FALSE;
1361 uschar *submission_domain      = NULL;
1362 BOOL    submission_mode        = FALSE;
1363 uschar *submission_name        = NULL;
1364 BOOL    suppress_local_fixups  = FALSE;
1365 BOOL    suppress_local_fixups_default = FALSE;
1366 BOOL    synchronous_delivery   = FALSE;
1367 BOOL    syslog_duplication     = TRUE;
1368 int     syslog_facility        = LOG_MAIL;
1369 uschar *syslog_processname     = US"exim";
1370 BOOL    syslog_timestamp       = TRUE;
1371 uschar *system_filter          = NULL;
1372
1373 uschar *system_filter_directory_transport = NULL;
1374 uschar *system_filter_file_transport = NULL;
1375 uschar *system_filter_pipe_transport = NULL;
1376 uschar *system_filter_reply_transport = NULL;
1377
1378 gid_t   system_filter_gid      = 0;
1379 BOOL    system_filter_gid_set  = FALSE;
1380 uid_t   system_filter_uid      = (uid_t)-1;
1381 BOOL    system_filter_uid_set  = FALSE;
1382 BOOL    system_filtering       = FALSE;
1383
1384 BOOL    tcp_nodelay            = TRUE;
1385 #ifdef USE_TCP_WRAPPERS
1386 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1387 #endif
1388 int     test_harness_load_avg  = 0;
1389 int     thismessage_size_limit = 0;
1390 int     timeout_frozen_after   = 0;
1391 BOOL    timestamps_utc         = FALSE;
1392
1393 transport_instance  *transports = NULL;
1394
1395 transport_instance  transport_defaults = {
1396     NULL,                     /* chain pointer */
1397     NULL,                     /* name */
1398     NULL,                     /* info */
1399     NULL,                     /* private options block pointer */
1400     NULL,                     /* driver name */
1401     NULL,                     /* setup entry point */
1402     1,                        /* batch_max */
1403     NULL,                     /* batch_id */
1404     NULL,                     /* home_dir */
1405     NULL,                     /* current_dir */
1406     NULL,                     /* expand-multi-domain */
1407     TRUE,                     /* multi-domain */
1408     FALSE,                    /* overrides_hosts */
1409     100,                      /* max_addresses */
1410     500,                      /* connection_max_messages */
1411     FALSE,                    /* deliver_as_creator */
1412     FALSE,                    /* disable_logging */
1413     FALSE,                    /* initgroups */
1414     FALSE,                    /* uid_set */
1415     FALSE,                    /* gid_set */
1416     (uid_t)(-1),              /* uid */
1417     (gid_t)(-1),              /* gid */
1418     NULL,                     /* expand_uid */
1419     NULL,                     /* expand_gid */
1420     NULL,                     /* warn_message */
1421     NULL,                     /* shadow */
1422     NULL,                     /* shadow_condition */
1423     NULL,                     /* filter_command */
1424     NULL,                     /* add_headers */
1425     NULL,                     /* remove_headers */
1426     NULL,                     /* return_path */
1427     NULL,                     /* debug_string */
1428     NULL,                     /* max_parallel */
1429     NULL,                     /* message_size_limit */
1430     NULL,                     /* headers_rewrite */
1431     NULL,                     /* rewrite_rules */
1432     0,                        /* rewrite_existflags */
1433     300,                      /* filter_timeout */
1434     FALSE,                    /* body_only */
1435     FALSE,                    /* delivery_date_add */
1436     FALSE,                    /* envelope_to_add */
1437     FALSE,                    /* headers_only */
1438     FALSE,                    /* rcpt_include_affixes */
1439     FALSE,                    /* return_path_add */
1440     FALSE,                    /* return_output */
1441     FALSE,                    /* return_fail_output */
1442     FALSE,                    /* log_output */
1443     FALSE,                    /* log_fail_output */
1444     FALSE,                    /* log_defer_output */
1445     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1446                                  1 nor 0 so can detect unset */
1447 #ifndef DISABLE_EVENT
1448    ,NULL                      /* event_action */
1449 #endif
1450 };
1451
1452 int     transport_count;
1453 uschar *transport_name          = NULL;
1454 int     transport_newlines;
1455 const uschar **transport_filter_argv  = NULL;
1456 int     transport_filter_timeout;
1457 BOOL    transport_filter_timed_out = FALSE;
1458 int     transport_write_timeout= 0;
1459
1460 tree_node  *tree_dns_fails     = NULL;
1461 tree_node  *tree_duplicates    = NULL;
1462 tree_node  *tree_nonrecipients = NULL;
1463 tree_node  *tree_unusable      = NULL;
1464
1465 BOOL    trusted_caller         = FALSE;
1466 BOOL    trusted_config         = TRUE;
1467 gid_t  *trusted_groups         = NULL;
1468 uid_t  *trusted_users          = NULL;
1469 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1470
1471 uschar *unknown_login          = NULL;
1472 uschar *unknown_username       = NULL;
1473 uschar *untrusted_set_sender   = NULL;
1474
1475 /*  A regex for matching a "From_" line in an incoming message, in the form
1476
1477     From ph10 Fri Jan  5 12:35 GMT 1996
1478
1479 which  the "mail" commands send to the MTA (undocumented, of course), or in
1480 the  form
1481
1482     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1483
1484 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1485 Because  of variations in time formats, just match up to the minutes. That
1486 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1487 so  just require one digit for hours and minutes. The weekday is also absent
1488 in  some forms. */
1489
1490 uschar *uucp_from_pattern      = US
1491    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1492    "(?:"                                          /* Non-extracting bracket */
1493    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1494    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1495    ")"                                            /* End alternation */
1496    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1497
1498 uschar *uucp_from_sender       = US"$1";
1499
1500 uschar *verify_mode            = NULL;
1501 uschar *version_copyright      =
1502  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1503    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1504 uschar *version_date           = US"?";
1505 uschar *version_cnumber        = US"????";
1506 uschar *version_string         = US"?";
1507
1508 uschar *warn_message_file      = NULL;
1509 int     warning_count          = 0;
1510 uschar *warnmsg_delay          = NULL;
1511 uschar *warnmsg_recipients     = NULL;
1512 BOOL    write_rejectlog        = TRUE;
1513
1514
1515 /*  End of globals.c */