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
 496 uschar *chunking_advertise_hosts = US"*";
 497 unsigned chunking_datasize     = 0;
 498 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 499
 500 uschar *client_authenticator   = NULL;
 501 uschar *client_authenticated_id = NULL;
 502 uschar *client_authenticated_sender = NULL;
 503 int     clmacro_count          = 0;
 504 uschar *clmacros[MAX_CLMACROS];
 505 BOOL    config_changed         = FALSE;
 506 FILE   *config_file            = NULL;
 507 uschar *config_filename        = NULL;
 508 int     config_lineno          = 0;
 509 #ifdef CONFIGURE_GROUP
 510 gid_t   config_gid             = CONFIGURE_GROUP;
 511 #endif
 512 uschar *config_main_filelist   = US CONFIGURE_FILE
 513                          "\0<-----------Space to patch configure_filename->";
 514 uschar *config_main_filename   = NULL;
 515 uschar *config_main_directory  = NULL;
 516
 517 #ifdef CONFIGURE_OWNER
 518 uid_t   config_uid             = CONFIGURE_OWNER;
 519 #endif
 520
 521 int     connection_max_messages= -1;
 522 uschar *continue_hostname      = NULL;
 523 uschar *continue_host_address  = NULL;
 524 BOOL    continue_more          = FALSE;
 525 int     continue_sequence      = 1;
 526 uschar *continue_transport     = NULL;
 527
 528 uschar *csa_status             = NULL;
 529 cut_t   cutthrough = {
 530   FALSE,                                /* delivery: when to attempt */
 531   -1,                                   /* fd: open connection */
 532   0,                                    /* nrcpt: number of addresses */
 533 };
 534
 535 BOOL    daemon_listen          = FALSE;
 536 uschar *daemon_smtp_port       = US"smtp";
 537 int     daemon_startup_retries = 9;
 538 int     daemon_startup_sleep   = 30;
 539
 540 #ifdef EXPERIMENTAL_DCC
 541 BOOL    dcc_direct_add_header  = FALSE;
 542 uschar *dcc_header             = NULL;
 543 uschar *dcc_result             = NULL;
 544 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 545 uschar *dccifd_options         = US"header";
 546 #endif
 547
 548 BOOL    debug_daemon           = FALSE;
 549 int     debug_fd               = -1;
 550 FILE   *debug_file             = NULL;
 551 int     debug_notall[]         = {
 552   Di_memory,
 553   -1
 554 };
 555 bit_table debug_options[]      = { /* must be in alphabetical order */
 556   BIT_TABLE(D, acl),
 557   BIT_TABLE(D, all),
 558   BIT_TABLE(D, auth),
 559   BIT_TABLE(D, deliver),
 560   BIT_TABLE(D, dns),
 561   BIT_TABLE(D, dnsbl),
 562   BIT_TABLE(D, exec),
 563   BIT_TABLE(D, expand),
 564   BIT_TABLE(D, filter),
 565   BIT_TABLE(D, hints_lookup),
 566   BIT_TABLE(D, host_lookup),
 567   BIT_TABLE(D, ident),
 568   BIT_TABLE(D, interface),
 569   BIT_TABLE(D, lists),
 570   BIT_TABLE(D, load),
 571   BIT_TABLE(D, local_scan),
 572   BIT_TABLE(D, lookup),
 573   BIT_TABLE(D, memory),
 574   BIT_TABLE(D, pid),
 575   BIT_TABLE(D, process_info),
 576   BIT_TABLE(D, queue_run),
 577   BIT_TABLE(D, receive),
 578   BIT_TABLE(D, resolver),
 579   BIT_TABLE(D, retry),
 580   BIT_TABLE(D, rewrite),
 581   BIT_TABLE(D, route),
 582   BIT_TABLE(D, timestamp),
 583   BIT_TABLE(D, tls),
 584   BIT_TABLE(D, transport),
 585   BIT_TABLE(D, uid),
 586   BIT_TABLE(D, verify),
 587 };
 588 int     debug_options_count    = nelem(debug_options);
 589
 590 unsigned int debug_selector    = 0;
 591 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 592 uschar *delay_warning_condition=
 593   US"${if or {"
 594             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 595             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 596             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 597             "} {no}{yes}}";
 598 BOOL    delivery_date_remove   = TRUE;
 599 uschar *deliver_address_data   = NULL;
 600 int     deliver_datafile       = -1;
 601 const uschar *deliver_domain   = NULL;
 602 uschar *deliver_domain_data    = NULL;
 603 const uschar *deliver_domain_orig = NULL;
 604 const uschar *deliver_domain_parent = NULL;
 605 BOOL    deliver_drop_privilege = FALSE;
 606 BOOL    deliver_firsttime      = FALSE;
 607 BOOL    deliver_force          = FALSE;
 608 BOOL    deliver_freeze         = FALSE;
 609 time_t  deliver_frozen_at      = 0;
 610 uschar *deliver_home           = NULL;
 611 const uschar *deliver_host     = NULL;
 612 const uschar *deliver_host_address = NULL;
 613 int     deliver_host_port      = 0;
 614 uschar *deliver_in_buffer      = NULL;
 615 ino_t   deliver_inode          = 0;
 616 uschar *deliver_localpart      = NULL;
 617 uschar *deliver_localpart_data = NULL;
 618 uschar *deliver_localpart_orig = NULL;
 619 uschar *deliver_localpart_parent = NULL;
 620 uschar *deliver_localpart_prefix = NULL;
 621 uschar *deliver_localpart_suffix = NULL;
 622 BOOL    deliver_force_thaw     = FALSE;
 623 BOOL    deliver_manual_thaw    = FALSE;
 624 uschar *deliver_out_buffer     = NULL;
 625 int     deliver_queue_load_max = -1;
 626 address_item  *deliver_recipients = NULL;
 627 uschar *deliver_selectstring   = NULL;
 628 BOOL    deliver_selectstring_regex = FALSE;
 629 uschar *deliver_selectstring_sender = NULL;
 630 BOOL    deliver_selectstring_sender_regex = FALSE;
 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 BOOL    dkim_collect_input       = FALSE;
 641 uschar *dkim_cur_signer          = NULL;
 642 BOOL    dkim_disable_verify      = FALSE;
 643 int     dkim_key_length          = 0;
 644 uschar *dkim_signers             = NULL;
 645 uschar *dkim_signing_domain      = NULL;
 646 uschar *dkim_signing_selector    = NULL;
 647 uschar *dkim_verify_signers      = US"$dkim_signers";
 648 #endif
 649 #ifdef EXPERIMENTAL_DMARC
 650 BOOL    dmarc_has_been_checked  = FALSE;
 651 uschar *dmarc_ar_header         = NULL;
 652 uschar *dmarc_domain_policy     = NULL;
 653 uschar *dmarc_forensic_sender   = NULL;
 654 uschar *dmarc_history_file      = NULL;
 655 uschar *dmarc_status            = NULL;
 656 uschar *dmarc_status_text       = NULL;
 657 uschar *dmarc_tld_file          = NULL;
 658 uschar *dmarc_used_domain       = NULL;
 659 BOOL    dmarc_disable_verify    = FALSE;
 660 BOOL    dmarc_enable_forensic   = FALSE;
 661 #endif
 662
 663 uschar *dns_again_means_nonexist = NULL;
 664 int     dns_csa_search_limit   = 5;
 665 BOOL    dns_csa_use_reverse    = TRUE;
 666 #ifdef EXPERIMENTAL_DANE
 667 int     dns_dane_ok            = -1;
 668 #endif
 669 uschar *dns_ipv4_lookup        = NULL;
 670 int     dns_retrans            = 0;
 671 int     dns_retry              = 0;
 672 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 673 uschar *dns_trust_aa           = NULL;
 674 int     dns_use_edns0          = -1; /* <0 = not coerced */
 675 uschar *dnslist_domain         = NULL;
 676 uschar *dnslist_matched        = NULL;
 677 uschar *dnslist_text           = NULL;
 678 uschar *dnslist_value          = NULL;
 679 tree_node *domainlist_anchor   = NULL;
 680 int     domainlist_count       = 0;
 681 BOOL    dont_deliver           = FALSE;
 682 BOOL    dot_ends               = TRUE;
 683 BOOL    drop_cr                = FALSE;         /* No longer used */
 684 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 685
 686 BOOL    enable_dollar_recipients = FALSE;
 687 BOOL    envelope_to_remove     = TRUE;
 688 int     errno_quota            = ERRNO_QUOTA;
 689 uschar *errors_copy            = NULL;
 690 int     error_handling         = ERRORS_SENDER;
 691 uschar *errors_reply_to        = NULL;
 692 int     errors_sender_rc       = EXIT_FAILURE;
 693 #ifndef DISABLE_EVENT
 694 uschar *event_action             = NULL;        /* expansion for delivery events */
 695 uschar *event_data               = NULL;        /* auxilary data variable for event */
 696 int     event_defer_errno        = 0;
 697 const uschar *event_name         = NULL;        /* event name variable */
 698 #endif
 699
 700
 701 gid_t   exim_gid               = EXIM_GID;
 702 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 703 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 704                         "\0<---------------Space to patch exim_path->";
 705 uid_t   exim_uid               = EXIM_UID;
 706 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 707 int     expand_forbid          = 0;
 708 int     expand_nlength[EXPAND_MAXN+1];
 709 int     expand_nmax            = -1;
 710 uschar *expand_nstring[EXPAND_MAXN+1];
 711 BOOL    expand_string_forcedfail = FALSE;
 712 uschar *expand_string_message;
 713 BOOL    extract_addresses_remove_arguments = TRUE;
 714 uschar *extra_local_interfaces = NULL;
 715
 716 int     fake_response          = OK;
 717 uschar *fake_response_text     = US"Your message has been rejected but is "
 718                                    "being kept for evaluation.\nIf it was a "
 719                                    "legitimate message, it may still be "
 720                                    "delivered to the target recipient(s).";
 721 int     filter_n[FILTER_VARIABLE_COUNT];
 722 BOOL    filter_running         = FALSE;
 723 int     filter_sn[FILTER_VARIABLE_COUNT];
 724 int     filter_test            = FTEST_NONE;
 725 uschar *filter_test_sfile      = NULL;
 726 uschar *filter_test_ufile      = NULL;
 727 uschar *filter_thisaddress     = NULL;
 728 int     finduser_retries       = 0;
 729 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 730 uschar *freeze_tell            = NULL;
 731 uschar *freeze_tell_config     = NULL;
 732 uschar *fudged_queue_times     = US"";
 733
 734 uschar *gecos_name             = NULL;
 735 uschar *gecos_pattern          = NULL;
 736 rewrite_rule  *global_rewrite_rules = NULL;
 737
 738 uschar *headers_charset        = US HEADERS_CHARSET;
 739 int     header_insert_maxlen   = 64 * 1024;
 740 header_line  *header_last      = NULL;
 741 header_line  *header_list      = NULL;
 742 int     header_maxsize         = HEADER_MAXSIZE;
 743 int     header_line_maxsize    = 0;
 744
 745 header_name header_names[] = {
 746   { US"bcc",            3, TRUE,  htype_bcc },
 747   { US"cc",             2, TRUE,  htype_cc },
 748   { US"date",           4, TRUE,  htype_date },
 749   { US"delivery-date", 13, FALSE, htype_delivery_date },
 750   { US"envelope-to",   11, FALSE, htype_envelope_to },
 751   { US"from",           4, TRUE,  htype_from },
 752   { US"message-id",    10, TRUE,  htype_id },
 753   { US"received",       8, FALSE, htype_received },
 754   { US"reply-to",       8, FALSE, htype_reply_to },
 755   { US"return-path",   11, FALSE, htype_return_path },
 756   { US"sender",         6, TRUE,  htype_sender },
 757   { US"subject",        7, FALSE, htype_subject },
 758   { US"to",             2, TRUE,  htype_to }
 759 };
 760
 761 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 762
 763 BOOL    header_rewritten       = FALSE;
 764 uschar *helo_accept_junk_hosts = NULL;
 765 uschar *helo_allow_chars       = US"";
 766 uschar *helo_lookup_domains    = US"@ : @[]";
 767 uschar *helo_try_verify_hosts  = NULL;
 768 BOOL    helo_verified          = FALSE;
 769 BOOL    helo_verify_failed     = FALSE;
 770 uschar *helo_verify_hosts      = NULL;
 771 const uschar *hex_digits       = CUS"0123456789abcdef";
 772 uschar *hold_domains           = NULL;
 773 BOOL    host_checking          = FALSE;
 774 BOOL    host_checking_callout  = FALSE;
 775 uschar *host_data              = NULL;
 776 BOOL    host_find_failed_syntax= FALSE;
 777 uschar *host_lookup            = NULL;
 778 BOOL    host_lookup_deferred   = FALSE;
 779 BOOL    host_lookup_failed     = FALSE;
 780 uschar *host_lookup_order      = US"bydns:byaddr";
 781 uschar *host_lookup_msg        = US"";
 782 int     host_number            = 0;
 783 uschar *host_number_string     = NULL;
 784 uschar *host_reject_connection = NULL;
 785 tree_node *hostlist_anchor     = NULL;
 786 int     hostlist_count         = 0;
 787 uschar *hosts_treat_as_local   = NULL;
 788 uschar *hosts_connection_nolog = NULL;
 789
 790 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 791 BOOL    ignore_fromline_local  = FALSE;
 792 uschar *ignore_fromline_hosts  = NULL;
 793 BOOL    inetd_wait_mode        = FALSE;
 794 int     inetd_wait_timeout     = -1;
 795 uschar *initial_cwd            = NULL;
 796 uschar *interface_address      = NULL;
 797 int     interface_port         = -1;
 798 BOOL    is_inetd               = FALSE;
 799 uschar *iterate_item           = NULL;
 800
 801 int     journal_fd             = -1;
 802
 803 uschar *keep_environment       = NULL;
 804
 805 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 806
 807 uschar *eldap_dn               = NULL;
 808 int     load_average           = -2;
 809 BOOL    local_error_message    = FALSE;
 810 BOOL    local_from_check       = TRUE;
 811 uschar *local_from_prefix      = NULL;
 812 uschar *local_from_suffix      = NULL;
 813
 814 #if HAVE_IPV6
 815 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 816 #else
 817 uschar *local_interfaces       = US"0.0.0.0";
 818 #endif
 819
 820 uschar *local_scan_data        = NULL;
 821 int     local_scan_timeout     = 5*60;
 822 BOOL    local_sender_retain    = FALSE;
 823 gid_t   local_user_gid         = (gid_t)(-1);
 824 uid_t   local_user_uid         = (uid_t)(-1);
 825
 826 tree_node *localpartlist_anchor= NULL;
 827 int     localpartlist_count    = 0;
 828 uschar *log_buffer             = NULL;
 829
 830 int     log_default[]          = { /* for initializing log_selector */
 831   Li_acl_warn_skipped,
 832   Li_connection_reject,
 833   Li_delay_delivery,
 834   Li_dnslist_defer,
 835   Li_etrn,
 836   Li_host_lookup_failed,
 837   Li_lost_incoming_connection,
 838   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 839   Li_queue_run,
 840   Li_rejected_header,
 841   Li_retry_defer,
 842   Li_sender_verify_fail,
 843   Li_size_reject,
 844   Li_skip_delivery,
 845   Li_smtp_confirmation,
 846   Li_tls_certificate_verified,
 847   Li_tls_cipher,
 848   -1
 849 };
 850
 851 uschar *log_file_path          = US LOG_FILE_PATH
 852                            "\0<--------------Space to patch log_file_path->";
 853
 854 int     log_notall[]           = {
 855   -1
 856 };
 857 bit_table log_options[]        = { /* must be in alphabetical order */
 858   BIT_TABLE(L, 8bitmime),
 859   BIT_TABLE(L, acl_warn_skipped),
 860   BIT_TABLE(L, address_rewrite),
 861   BIT_TABLE(L, all),
 862   BIT_TABLE(L, all_parents),
 863   BIT_TABLE(L, arguments),
 864   BIT_TABLE(L, connection_reject),
 865   BIT_TABLE(L, delay_delivery),
 866   BIT_TABLE(L, deliver_time),
 867   BIT_TABLE(L, delivery_size),
 868   BIT_TABLE(L, dnslist_defer),
 869   BIT_TABLE(L, dnssec),
 870   BIT_TABLE(L, etrn),
 871   BIT_TABLE(L, host_lookup_failed),
 872   BIT_TABLE(L, ident_timeout),
 873   BIT_TABLE(L, incoming_interface),
 874   BIT_TABLE(L, incoming_port),
 875   BIT_TABLE(L, lost_incoming_connection),
 876   BIT_TABLE(L, outgoing_interface),
 877   BIT_TABLE(L, outgoing_port),
 878   BIT_TABLE(L, pid),
 879 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 880   BIT_TABLE(L, proxy),
 881 #endif
 882   BIT_TABLE(L, queue_run),
 883   BIT_TABLE(L, queue_time),
 884   BIT_TABLE(L, queue_time_overall),
 885   BIT_TABLE(L, received_recipients),
 886   BIT_TABLE(L, received_sender),
 887   BIT_TABLE(L, rejected_header),
 888   { US"rejected_headers", Li_rejected_header },
 889   BIT_TABLE(L, retry_defer),
 890   BIT_TABLE(L, return_path_on_delivery),
 891   BIT_TABLE(L, sender_on_delivery),
 892   BIT_TABLE(L, sender_verify_fail),
 893   BIT_TABLE(L, size_reject),
 894   BIT_TABLE(L, skip_delivery),
 895   BIT_TABLE(L, smtp_confirmation),
 896   BIT_TABLE(L, smtp_connection),
 897   BIT_TABLE(L, smtp_incomplete_transaction),
 898   BIT_TABLE(L, smtp_mailauth),
 899   BIT_TABLE(L, smtp_no_mail),
 900   BIT_TABLE(L, smtp_protocol_error),
 901   BIT_TABLE(L, smtp_syntax_error),
 902   BIT_TABLE(L, subject),
 903   BIT_TABLE(L, tls_certificate_verified),
 904   BIT_TABLE(L, tls_cipher),
 905   BIT_TABLE(L, tls_peerdn),
 906   BIT_TABLE(L, tls_sni),
 907   BIT_TABLE(L, unknown_in_list),
 908 };
 909 int     log_options_count      = nelem(log_options);
 910
 911 int     log_reject_target      = 0;
 912 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 913 uschar *log_selector_string    = NULL;
 914 FILE   *log_stderr             = NULL;
 915 BOOL    log_testing_mode       = FALSE;
 916 BOOL    log_timezone           = FALSE;
 917 uschar *login_sender_address   = NULL;
 918 uschar *lookup_dnssec_authenticated = NULL;
 919 int     lookup_open_max        = 25;
 920 uschar *lookup_value           = NULL;
 921
 922 macro_item  *macros            = NULL;
 923 uschar *mailstore_basename     = NULL;
 924 #ifdef WITH_CONTENT_SCAN
 925 uschar *malware_name           = NULL;  /* Virus Name */
 926 #endif
 927 int     max_received_linelength= 0;
 928 int     max_username_length    = 0;
 929 int     message_age            = 0;
 930 uschar *message_body           = NULL;
 931 uschar *message_body_end       = NULL;
 932 BOOL    message_body_newlines  = FALSE;
 933 int     message_body_size      = 0;
 934 int     message_body_visible   = 500;
 935 int     message_ended          = END_NOTSTARTED;
 936 uschar *message_headers        = NULL;
 937 uschar *message_id;
 938 uschar *message_id_domain      = NULL;
 939 uschar *message_id_text        = NULL;
 940 struct timeval message_id_tv   = { 0, 0 };
 941 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 942 uschar *message_id_external;
 943 int     message_linecount      = 0;
 944 BOOL    message_logs           = TRUE;
 945 int     message_size           = 0;
 946 uschar *message_size_limit     = US"50M";
 947 #ifdef SUPPORT_I18N
 948 BOOL    message_smtputf8       = FALSE;
 949 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 950 #endif
 951 uschar  message_subdir[2]      = { 0, 0 };
 952 uschar *message_reference      = NULL;
 953
 954 /* MIME ACL expandables */
 955 #ifdef WITH_CONTENT_SCAN
 956 int     mime_anomaly_level     = 0;
 957 const uschar *mime_anomaly_text      = NULL;
 958 uschar *mime_boundary          = NULL;
 959 uschar *mime_charset           = NULL;
 960 uschar *mime_content_description = NULL;
 961 uschar *mime_content_disposition = NULL;
 962 uschar *mime_content_id        = NULL;
 963 unsigned int mime_content_size = 0;
 964 uschar *mime_content_transfer_encoding = NULL;
 965 uschar *mime_content_type      = NULL;
 966 uschar *mime_decoded_filename  = NULL;
 967 uschar *mime_filename          = NULL;
 968 int     mime_is_multipart      = 0;
 969 int     mime_is_coverletter    = 0;
 970 int     mime_is_rfc822         = 0;
 971 int     mime_part_count        = -1;
 972 #endif
 973
 974 BOOL    mua_wrapper            = FALSE;
 975
 976 uid_t  *never_users            = NULL;
 977 #ifdef WITH_CONTENT_SCAN
 978 BOOL    no_mbox_unspool        = FALSE;
 979 #endif
 980 BOOL    no_multiline_responses = FALSE;
 981
 982 uid_t   original_euid;
 983 gid_t   originator_gid;
 984 uschar *originator_login       = NULL;
 985 uschar *originator_name        = NULL;
 986 uid_t   originator_uid;
 987 uschar *override_local_interfaces = NULL;
 988 uschar *override_pid_file_path = NULL;
 989
 990 BOOL    parse_allow_group      = FALSE;
 991 BOOL    parse_found_group      = FALSE;
 992 uschar *percent_hack_domains   = NULL;
 993 uschar *pid_file_path          = US PID_FILE_PATH
 994                            "\0<--------------Space to patch pid_file_path->";
 995 BOOL    pipelining_enable      = TRUE;
 996 uschar *pipelining_advertise_hosts = US"*";
 997 BOOL    preserve_message_logs  = FALSE;
 998 uschar *primary_hostname       = NULL;
 999 BOOL    print_topbitchars      = FALSE;
1000 uschar  process_info[PROCESS_INFO_SIZE];
1001 int     process_info_len       = 0;
1002 uschar *process_log_path       = NULL;
1003 BOOL    prod_requires_admin    = TRUE;
1004
1005 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1006 uschar *hosts_proxy            = US"";
1007 uschar *proxy_external_address = US"";
1008 int     proxy_external_port    = 0;
1009 uschar *proxy_local_address    = US"";
1010 int     proxy_local_port       = 0;
1011 BOOL    proxy_session          = FALSE;
1012 BOOL    proxy_session_failed   = FALSE;
1013 #endif
1014
1015 uschar *prvscheck_address      = NULL;
1016 uschar *prvscheck_keynum       = NULL;
1017 uschar *prvscheck_result       = NULL;
1018
1019
1020 const uschar *qualify_domain_recipient = NULL;
1021 uschar *qualify_domain_sender  = NULL;
1022 BOOL    queue_2stage           = FALSE;
1023 uschar *queue_domains          = NULL;
1024 int     queue_interval         = -1;
1025 BOOL    queue_list_requires_admin = TRUE;
1026 uschar *queue_name             = US"";
1027 BOOL    queue_only             = FALSE;
1028 uschar *queue_only_file        = NULL;
1029 int     queue_only_load        = -1;
1030 BOOL    queue_only_load_latch  = TRUE;
1031 BOOL    queue_only_override    = TRUE;
1032 BOOL    queue_only_policy      = FALSE;
1033 BOOL    queue_run_first_delivery = FALSE;
1034 BOOL    queue_run_force        = FALSE;
1035 BOOL    queue_run_in_order     = FALSE;
1036 BOOL    queue_run_local        = FALSE;
1037 uschar *queue_run_max          = US"5";
1038 pid_t   queue_run_pid          = (pid_t)0;
1039 int     queue_run_pipe         = -1;
1040 BOOL    queue_running          = FALSE;
1041 BOOL    queue_smtp             = FALSE;
1042 uschar *queue_smtp_domains     = NULL;
1043
1044 unsigned int random_seed       = 0;
1045 tree_node *ratelimiters_cmd    = NULL;
1046 tree_node *ratelimiters_conn   = NULL;
1047 tree_node *ratelimiters_mail   = NULL;
1048 uschar *raw_active_hostname    = NULL;
1049 uschar *raw_sender             = NULL;
1050 uschar **raw_recipients        = NULL;
1051 int     raw_recipients_count   = 0;
1052
1053 int     rcpt_count             = 0;
1054 int     rcpt_fail_count        = 0;
1055 int     rcpt_defer_count       = 0;
1056 gid_t   real_gid;
1057 uid_t   real_uid;
1058 BOOL    really_exim            = TRUE;
1059 BOOL    receive_call_bombout   = FALSE;
1060 int     receive_linecount      = 0;
1061 int     receive_messagecount   = 0;
1062 int     receive_timeout        = 0;
1063 int     received_count         = 0;
1064 uschar *received_for           = NULL;
1065
1066 /*  This is the default text for Received headers generated by Exim. The
1067 date  will be automatically added on the end. */
1068
1069 uschar *received_header_text   = US
1070      "Received: "
1071      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1072      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1073      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1074      "by $primary_hostname "
1075      "${if def:received_protocol {with $received_protocol}} "
1076      #ifdef SUPPORT_TLS
1077      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1078      #endif
1079      "(Exim $version_number)\n\t"
1080      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1081      "id $message_exim_id"
1082      "${if def:received_for {\n\tfor $received_for}}"
1083      "\0<---------------Space to patch received_header_text->";
1084
1085 int     received_headers_max   = 30;
1086 uschar *received_protocol      = NULL;
1087 int     received_time          = 0;
1088 uschar *recipient_data         = NULL;
1089 uschar *recipient_unqualified_hosts = NULL;
1090 uschar *recipient_verify_failure = NULL;
1091 int     recipients_count       = 0;
1092 BOOL    recipients_discarded   = FALSE;
1093 recipient_item  *recipients_list = NULL;
1094 int     recipients_list_max    = 0;
1095 int     recipients_max         = 0;
1096 BOOL    recipients_max_reject  = FALSE;
1097 const pcre *regex_AUTH         = NULL;
1098 const pcre *regex_check_dns_names = NULL;
1099 const pcre *regex_From         = NULL;
1100 const pcre *regex_IGNOREQUOTA  = NULL;
1101 const pcre *regex_PIPELINING   = NULL;
1102 const pcre *regex_SIZE         = NULL;
1103 const pcre *regex_ismsgid      = NULL;
1104 const pcre *regex_smtp_code    = NULL;
1105 uschar *regex_vars[REGEX_VARS];
1106 #ifdef WHITELIST_D_MACROS
1107 const pcre *regex_whitelisted_macro = NULL;
1108 #endif
1109 #ifdef WITH_CONTENT_SCAN
1110 uschar *regex_match_string     = NULL;
1111 #endif
1112 int     remote_delivery_count  = 0;
1113 int     remote_max_parallel    = 2;
1114 uschar *remote_sort_domains    = NULL;
1115 int     retry_data_expire      = 7*24*60*60;
1116 int     retry_interval_max     = 24*60*60;
1117 int     retry_maximum_timeout  = 0;        /* set from retry config */
1118 retry_config  *retries         = NULL;
1119 uschar *return_path            = NULL;
1120 BOOL    return_path_remove     = TRUE;
1121 int     rewrite_existflags     = 0;
1122 uschar *rfc1413_hosts          = US"@[]";
1123 int     rfc1413_query_timeout  = 0;
1124 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1125 uid_t   root_gid               = ROOT_GID;
1126 uid_t   root_uid               = ROOT_UID;
1127
1128 router_instance  *routers  = NULL;
1129 router_instance  router_defaults = {
1130     NULL,                      /* chain pointer */
1131     NULL,                      /* name */
1132     NULL,                      /* info */
1133     NULL,                      /* private options block pointer */
1134     NULL,                      /* driver name */
1135
1136     NULL,                      /* address_data */
1137 #ifdef EXPERIMENTAL_BRIGHTMAIL
1138     NULL,                      /* bmi_rule */
1139 #endif
1140     NULL,                      /* cannot_route_message */
1141     NULL,                      /* condition */
1142     NULL,                      /* current_directory */
1143     NULL,                      /* debug_string */
1144     NULL,                      /* domains */
1145     NULL,                      /* errors_to */
1146     NULL,                      /* expand_gid */
1147     NULL,                      /* expand_uid */
1148     NULL,                      /* expand_more */
1149     NULL,                      /* expand_unseen */
1150     NULL,                      /* extra_headers */
1151     NULL,                      /* fallback_hosts */
1152     NULL,                      /* home_directory */
1153     NULL,                      /* ignore_target_hosts */
1154     NULL,                      /* local_parts */
1155     NULL,                      /* pass_router_name */
1156     NULL,                      /* prefix */
1157     NULL,                      /* redirect_router_name */
1158     NULL,                      /* remove_headers */
1159     NULL,                      /* require_files */
1160     NULL,                      /* router_home_directory */
1161     US"freeze",                /* self */
1162     NULL,                      /* senders */
1163     NULL,                      /* suffix */
1164     NULL,                      /* translate_ip_address */
1165     NULL,                      /* transport_name */
1166
1167     TRUE,                      /* address_test */
1168 #ifdef EXPERIMENTAL_BRIGHTMAIL
1169     FALSE,                     /* bmi_deliver_alternate */
1170     FALSE,                     /* bmi_deliver_default */
1171     FALSE,                     /* bmi_dont_deliver */
1172 #endif
1173     TRUE,                      /* expn */
1174     FALSE,                     /* caseful_local_part */
1175     FALSE,                     /* check_local_user */
1176     FALSE,                     /* disable_logging */
1177     FALSE,                     /* fail_verify_recipient */
1178     FALSE,                     /* fail_verify_sender */
1179     FALSE,                     /* gid_set */
1180     FALSE,                     /* initgroups */
1181     TRUE_UNSET,                /* log_as_local */
1182     TRUE,                      /* more */
1183     FALSE,                     /* pass_on_timeout */
1184     FALSE,                     /* prefix_optional */
1185     TRUE,                      /* repeat_use */
1186     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1187     FALSE,                     /* same_domain_copy_routing */
1188     FALSE,                     /* self_rewrite */
1189     FALSE,                     /* suffix_optional */
1190     FALSE,                     /* verify_only */
1191     TRUE,                      /* verify_recipient */
1192     TRUE,                      /* verify_sender */
1193     FALSE,                     /* uid_set */
1194     FALSE,                     /* unseen */
1195     FALSE,                     /* dsn_lasthop */
1196
1197     self_freeze,               /* self_code */
1198     (uid_t)(-1),               /* uid */
1199     (gid_t)(-1),               /* gid */
1200
1201     NULL,                      /* fallback_hostlist */
1202     NULL,                      /* transport instance */
1203     NULL,                      /* pass_router */
1204     NULL,                      /* redirect_router */
1205
1206     { NULL, NULL },            /* dnssec_domains {require,request} */
1207 };
1208
1209 uschar *router_name            = NULL;
1210
1211 ip_address_item *running_interfaces = NULL;
1212 BOOL    running_in_test_harness = FALSE;
1213
1214 /* This is a weird one. The following string gets patched in the binary by the
1215 script that sets up a copy of Exim for running in the test harness. It seems
1216 that compilers are now clever, and share constant strings if they can.
1217 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1218 make use of the end of this string in order to save space. So the patching then
1219 wrecks this. We defeat this optimization by adding some additional characters
1220 onto the end of the string. */
1221
1222 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1223
1224 int     runrc                  = 0;
1225
1226 uschar *search_error_message   = NULL;
1227 BOOL    search_find_defer      = FALSE;
1228 uschar *self_hostname          = NULL;
1229 uschar *sender_address         = NULL;
1230 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1231 uschar *sender_address_data    = NULL;
1232 BOOL    sender_address_forced  = FALSE;
1233 uschar *sender_address_unrewritten = NULL;
1234 uschar *sender_data            = NULL;
1235 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1236 uschar *sender_fullhost        = NULL;
1237 BOOL    sender_helo_dnssec     = FALSE;
1238 uschar *sender_helo_name       = NULL;
1239 uschar **sender_host_aliases   = &no_aliases;
1240 uschar *sender_host_address    = NULL;
1241 uschar *sender_host_authenticated = NULL;
1242 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1243 BOOL    sender_host_dnssec     = FALSE;
1244 uschar *sender_host_name       = NULL;
1245 int     sender_host_port       = 0;
1246 BOOL    sender_host_notsocket  = FALSE;
1247 BOOL    sender_host_unknown    = FALSE;
1248 uschar *sender_ident           = NULL;
1249 BOOL    sender_local           = FALSE;
1250 BOOL    sender_name_forced     = FALSE;
1251 uschar *sender_rate            = NULL;
1252 uschar *sender_rate_limit      = NULL;
1253 uschar *sender_rate_period     = NULL;
1254 uschar *sender_rcvhost         = NULL;
1255 BOOL    sender_set_untrusted   = FALSE;
1256 uschar *sender_unqualified_hosts = NULL;
1257 uschar *sender_verify_failure = NULL;
1258 address_item *sender_verified_list  = NULL;
1259 address_item *sender_verified_failed = NULL;
1260 int     sender_verified_rc     = -1;
1261 BOOL    sender_verified_responded = FALSE;
1262 uschar *sending_ip_address     = NULL;
1263 int     sending_port           = -1;
1264 SIGNAL_BOOL sigalrm_seen       = FALSE;
1265 uschar **sighup_argv           = NULL;
1266 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1267 int     smtp_accept_count      = 0;
1268 BOOL    smtp_accept_keepalive  = TRUE;
1269 int     smtp_accept_max        = 20;
1270 int     smtp_accept_max_nonmail= 10;
1271 uschar *smtp_accept_max_nonmail_hosts = US"*";
1272 int     smtp_accept_max_per_connection = 1000;
1273 uschar *smtp_accept_max_per_host = NULL;
1274 int     smtp_accept_queue      = 0;
1275 int     smtp_accept_queue_per_connection = 10;
1276 int     smtp_accept_reserve    = 0;
1277 uschar *smtp_active_hostname   = NULL;
1278 BOOL    smtp_authenticated     = FALSE;
1279 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1280                              "Exim $version_number $tod_full"
1281                              "\0<---------------Space to patch smtp_banner->";
1282 BOOL    smtp_batched_input     = FALSE;
1283 BOOL    smtp_check_spool_space = TRUE;
1284 int     smtp_ch_index          = 0;
1285 uschar *smtp_cmd_argument      = NULL;
1286 uschar *smtp_cmd_buffer        = NULL;
1287 time_t  smtp_connection_start  = 0;
1288 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1289 int     smtp_connect_backlog   = 20;
1290 double  smtp_delay_mail        = 0.0;
1291 double  smtp_delay_rcpt        = 0.0;
1292 BOOL    smtp_enforce_sync      = TRUE;
1293 FILE   *smtp_in                = NULL;
1294 BOOL    smtp_input             = FALSE;
1295 int     smtp_load_reserve      = -1;
1296 int     smtp_mailcmd_count     = 0;
1297 FILE   *smtp_out               = NULL;
1298 uschar *smtp_etrn_command      = NULL;
1299 BOOL    smtp_etrn_serialize    = TRUE;
1300 int     smtp_max_synprot_errors= 3;
1301 int     smtp_max_unknown_commands = 3;
1302 uschar *smtp_notquit_reason    = NULL;
1303 uschar *smtp_ratelimit_hosts   = NULL;
1304 uschar *smtp_ratelimit_mail    = NULL;
1305 uschar *smtp_ratelimit_rcpt    = NULL;
1306 uschar *smtp_read_error        = US"";
1307 int     smtp_receive_timeout   = 5*60;
1308 uschar *smtp_receive_timeout_s = NULL;
1309 uschar *smtp_reserve_hosts     = NULL;
1310 BOOL    smtp_return_error_details = FALSE;
1311 int     smtp_rlm_base          = 0;
1312 double  smtp_rlm_factor        = 0.0;
1313 int     smtp_rlm_limit         = 0;
1314 int     smtp_rlm_threshold     = INT_MAX;
1315 int     smtp_rlr_base          = 0;
1316 double  smtp_rlr_factor        = 0.0;
1317 int     smtp_rlr_limit         = 0;
1318 int     smtp_rlr_threshold     = INT_MAX;
1319 BOOL    smtp_use_pipelining    = FALSE;
1320 BOOL    smtp_use_size          = FALSE;
1321 #ifdef SUPPORT_I18N
1322 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1323 #endif
1324
1325 #ifdef WITH_CONTENT_SCAN
1326 uschar *spamd_address          = US"127.0.0.1 783";
1327 uschar *spam_bar               = NULL;
1328 uschar *spam_report            = NULL;
1329 uschar *spam_action            = NULL;
1330 uschar *spam_score             = NULL;
1331 uschar *spam_score_int         = NULL;
1332 #endif
1333 #ifdef EXPERIMENTAL_SPF
1334 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1335 uschar *spf_header_comment     = NULL;
1336 uschar *spf_received           = NULL;
1337 uschar *spf_result             = NULL;
1338 uschar *spf_smtp_comment       = NULL;
1339 #endif
1340
1341 BOOL    split_spool_directory  = FALSE;
1342 uschar *spool_directory        = US SPOOL_DIRECTORY
1343                            "\0<--------------Space to patch spool_directory->";
1344 #ifdef EXPERIMENTAL_SRS
1345 uschar *srs_config             = NULL;
1346 uschar *srs_db_address         = NULL;
1347 uschar *srs_db_key             = NULL;
1348 int     srs_hashlength         = 6;
1349 int     srs_hashmin            = -1;
1350 int     srs_maxage             = 31;
1351 uschar *srs_orig_recipient     = NULL;
1352 uschar *srs_orig_sender        = NULL;
1353 uschar *srs_recipient          = NULL;
1354 uschar *srs_secrets            = NULL;
1355 uschar *srs_status             = NULL;
1356 BOOL    srs_usehash            = TRUE;
1357 BOOL    srs_usetimestamp       = TRUE;
1358 #endif
1359 BOOL    strict_acl_vars        = FALSE;
1360 int     string_datestamp_offset= -1;
1361 int     string_datestamp_length= 0;
1362 int     string_datestamp_type  = -1;
1363 BOOL    strip_excess_angle_brackets = FALSE;
1364 BOOL    strip_trailing_dot     = FALSE;
1365 uschar *submission_domain      = NULL;
1366 BOOL    submission_mode        = FALSE;
1367 uschar *submission_name        = NULL;
1368 BOOL    suppress_local_fixups  = FALSE;
1369 BOOL    suppress_local_fixups_default = FALSE;
1370 BOOL    synchronous_delivery   = FALSE;
1371 BOOL    syslog_duplication     = TRUE;
1372 int     syslog_facility        = LOG_MAIL;
1373 uschar *syslog_processname     = US"exim";
1374 BOOL    syslog_timestamp       = TRUE;
1375 uschar *system_filter          = NULL;
1376
1377 uschar *system_filter_directory_transport = NULL;
1378 uschar *system_filter_file_transport = NULL;
1379 uschar *system_filter_pipe_transport = NULL;
1380 uschar *system_filter_reply_transport = NULL;
1381
1382 gid_t   system_filter_gid      = 0;
1383 BOOL    system_filter_gid_set  = FALSE;
1384 uid_t   system_filter_uid      = (uid_t)-1;
1385 BOOL    system_filter_uid_set  = FALSE;
1386 BOOL    system_filtering       = FALSE;
1387
1388 BOOL    tcp_nodelay            = TRUE;
1389 #ifdef USE_TCP_WRAPPERS
1390 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1391 #endif
1392 int     test_harness_load_avg  = 0;
1393 int     thismessage_size_limit = 0;
1394 int     timeout_frozen_after   = 0;
1395 BOOL    timestamps_utc         = FALSE;
1396
1397 transport_instance  *transports = NULL;
1398
1399 transport_instance  transport_defaults = {
1400     NULL,                     /* chain pointer */
1401     NULL,                     /* name */
1402     NULL,                     /* info */
1403     NULL,                     /* private options block pointer */
1404     NULL,                     /* driver name */
1405     NULL,                     /* setup entry point */
1406     1,                        /* batch_max */
1407     NULL,                     /* batch_id */
1408     NULL,                     /* home_dir */
1409     NULL,                     /* current_dir */
1410     NULL,                     /* expand-multi-domain */
1411     TRUE,                     /* multi-domain */
1412     FALSE,                    /* overrides_hosts */
1413     100,                      /* max_addresses */
1414     500,                      /* connection_max_messages */
1415     FALSE,                    /* deliver_as_creator */
1416     FALSE,                    /* disable_logging */
1417     FALSE,                    /* initgroups */
1418     FALSE,                    /* uid_set */
1419     FALSE,                    /* gid_set */
1420     (uid_t)(-1),              /* uid */
1421     (gid_t)(-1),              /* gid */
1422     NULL,                     /* expand_uid */
1423     NULL,                     /* expand_gid */
1424     NULL,                     /* warn_message */
1425     NULL,                     /* shadow */
1426     NULL,                     /* shadow_condition */
1427     NULL,                     /* filter_command */
1428     NULL,                     /* add_headers */
1429     NULL,                     /* remove_headers */
1430     NULL,                     /* return_path */
1431     NULL,                     /* debug_string */
1432     NULL,                     /* max_parallel */
1433     NULL,                     /* message_size_limit */
1434     NULL,                     /* headers_rewrite */
1435     NULL,                     /* rewrite_rules */
1436     0,                        /* rewrite_existflags */
1437     300,                      /* filter_timeout */
1438     FALSE,                    /* body_only */
1439     FALSE,                    /* delivery_date_add */
1440     FALSE,                    /* envelope_to_add */
1441     FALSE,                    /* headers_only */
1442     FALSE,                    /* rcpt_include_affixes */
1443     FALSE,                    /* return_path_add */
1444     FALSE,                    /* return_output */
1445     FALSE,                    /* return_fail_output */
1446     FALSE,                    /* log_output */
1447     FALSE,                    /* log_fail_output */
1448     FALSE,                    /* log_defer_output */
1449     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1450                                  1 nor 0 so can detect unset */
1451 #ifndef DISABLE_EVENT
1452    ,NULL                      /* event_action */
1453 #endif
1454 };
1455
1456 int     transport_count;
1457 uschar *transport_name          = NULL;
1458 int     transport_newlines;
1459 const uschar **transport_filter_argv  = NULL;
1460 int     transport_filter_timeout;
1461 BOOL    transport_filter_timed_out = FALSE;
1462 int     transport_write_timeout= 0;
1463
1464 tree_node  *tree_dns_fails     = NULL;
1465 tree_node  *tree_duplicates    = NULL;
1466 tree_node  *tree_nonrecipients = NULL;
1467 tree_node  *tree_unusable      = NULL;
1468
1469 BOOL    trusted_caller         = FALSE;
1470 BOOL    trusted_config         = TRUE;
1471 gid_t  *trusted_groups         = NULL;
1472 uid_t  *trusted_users          = NULL;
1473 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1474
1475 uschar *unknown_login          = NULL;
1476 uschar *unknown_username       = NULL;
1477 uschar *untrusted_set_sender   = NULL;
1478
1479 /*  A regex for matching a "From_" line in an incoming message, in the form
1480
1481     From ph10 Fri Jan  5 12:35 GMT 1996
1482
1483 which  the "mail" commands send to the MTA (undocumented, of course), or in
1484 the  form
1485
1486     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1487
1488 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1489 Because  of variations in time formats, just match up to the minutes. That
1490 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1491 so  just require one digit for hours and minutes. The weekday is also absent
1492 in  some forms. */
1493
1494 uschar *uucp_from_pattern      = US
1495    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1496    "(?:"                                          /* Non-extracting bracket */
1497    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1498    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1499    ")"                                            /* End alternation */
1500    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1501
1502 uschar *uucp_from_sender       = US"$1";
1503
1504 uschar *verify_mode            = NULL;
1505 uschar *version_copyright      =
1506  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1507    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1508 uschar *version_date           = US"?";
1509 uschar *version_cnumber        = US"????";
1510 uschar *version_string         = US"?";
1511
1512 uschar *warn_message_file      = NULL;
1513 int     warning_count          = 0;
1514 uschar *warnmsg_delay          = NULL;
1515 uschar *warnmsg_recipients     = NULL;
1516 BOOL    write_rejectlog        = TRUE;
1517
1518
1519 /*  End of globals.c */