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 (*lwr_receive_getc)(void)  = stdin_getc;
 189 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 190 int (*receive_getc)(void)      = stdin_getc;
 191 int (*receive_ungetc)(int)     = stdin_ungetc;
 192 int (*receive_feof)(void)      = stdin_feof;
 193 int (*receive_ferror)(void)    = stdin_ferror;
 194 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 195 #endif
 196
 197
 198 /* List of per-address expansion variables for clearing and saving/restoring
 199 when verifying one address while routing/verifying another. We have to have
 200 the size explicit, because it is referenced from more than one module. */
 201
 202 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 203   CUSS &deliver_address_data,
 204   CUSS &deliver_domain,
 205   CUSS &deliver_domain_data,
 206   CUSS &deliver_domain_orig,
 207   CUSS &deliver_domain_parent,
 208   CUSS &deliver_localpart,
 209   CUSS &deliver_localpart_data,
 210   CUSS &deliver_localpart_orig,
 211   CUSS &deliver_localpart_parent,
 212   CUSS &deliver_localpart_prefix,
 213   CUSS &deliver_localpart_suffix,
 214   CUSS (uschar **)(&deliver_recipients),
 215   CUSS &deliver_host,
 216   CUSS &deliver_home,
 217   CUSS &address_file,
 218   CUSS &address_pipe,
 219   CUSS &self_hostname,
 220   NULL };
 221
 222 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 223
 224 /* General global variables */
 225
 226 header_line *acl_added_headers = NULL;
 227 tree_node *acl_anchor          = NULL;
 228 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 229                                   NULL, NULL, NULL, NULL};
 230 int     acl_narg               = 0;
 231
 232 uschar *acl_not_smtp           = NULL;
 233 #ifdef WITH_CONTENT_SCAN
 234 uschar *acl_not_smtp_mime      = NULL;
 235 #endif
 236 uschar *acl_not_smtp_start     = NULL;
 237 uschar *acl_removed_headers    = NULL;
 238 uschar *acl_smtp_auth          = NULL;
 239 uschar *acl_smtp_connect       = NULL;
 240 uschar *acl_smtp_data          = NULL;
 241 #ifndef DISABLE_PRDR
 242 uschar *acl_smtp_data_prdr     = US"accept";
 243 #endif
 244 #ifndef DISABLE_DKIM
 245 uschar *acl_smtp_dkim          = NULL;
 246 #endif
 247 uschar *acl_smtp_etrn          = NULL;
 248 uschar *acl_smtp_expn          = NULL;
 249 uschar *acl_smtp_helo          = NULL;
 250 uschar *acl_smtp_mail          = NULL;
 251 uschar *acl_smtp_mailauth      = NULL;
 252 #ifdef WITH_CONTENT_SCAN
 253 uschar *acl_smtp_mime          = NULL;
 254 #endif
 255 uschar *acl_smtp_notquit       = NULL;
 256 uschar *acl_smtp_predata       = NULL;
 257 uschar *acl_smtp_quit          = NULL;
 258 uschar *acl_smtp_rcpt          = NULL;
 259 uschar *acl_smtp_starttls      = NULL;
 260 uschar *acl_smtp_vrfy          = NULL;
 261
 262 BOOL    acl_temp_details       = FALSE;
 263 tree_node *acl_var_c           = NULL;
 264 tree_node *acl_var_m           = NULL;
 265 uschar *acl_verify_message     = NULL;
 266 string_item *acl_warn_logged   = NULL;
 267
 268 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 269 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 270
 271 uschar *acl_wherenames[]       = { US"RCPT",
 272                                    US"MAIL",
 273                                    US"PREDATA",
 274                                    US"MIME",
 275                                    US"DKIM",
 276                                    US"DATA",
 277 #ifndef DISABLE_PRDR
 278                                    US"PRDR",
 279 #endif
 280                                    US"non-SMTP",
 281                                    US"AUTH",
 282                                    US"connection",
 283                                    US"ETRN",
 284                                    US"EXPN",
 285                                    US"EHLO or HELO",
 286                                    US"MAILAUTH",
 287                                    US"non-SMTP-start",
 288                                    US"NOTQUIT",
 289                                    US"QUIT",
 290                                    US"STARTTLS",
 291                                    US"VRFY",
 292                                    US"delivery",
 293                                    US"unknown"
 294                                  };
 295
 296 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 297                                    US"550",     /* MAIL */
 298                                    US"550",     /* PREDATA */
 299                                    US"550",     /* MIME */
 300                                    US"550",     /* DKIM */
 301                                    US"550",     /* DATA */
 302 #ifndef DISABLE_PRDR
 303                                    US"550",    /* RCPT PRDR */
 304 #endif
 305                                    US"0",       /* not SMTP; not relevant */
 306                                    US"503",     /* AUTH */
 307                                    US"550",     /* connect */
 308                                    US"458",     /* ETRN */
 309                                    US"550",     /* EXPN */
 310                                    US"550",     /* HELO/EHLO */
 311                                    US"0",       /* MAILAUTH; not relevant */
 312                                    US"0",       /* not SMTP; not relevant */
 313                                    US"0",       /* NOTQUIT; not relevant */
 314                                    US"0",       /* QUIT; not relevant */
 315                                    US"550",     /* STARTTLS */
 316                                    US"252",     /* VRFY */
 317                                    US"0",       /* delivery; not relevant */
 318                                    US"0"        /* unknown; not relevant */
 319                                  };
 320
 321 BOOL    active_local_from_check = FALSE;
 322 BOOL    active_local_sender_retain = FALSE;
 323 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 324 uschar *add_environment        = NULL;
 325 address_item  *addr_duplicate  = NULL;
 326
 327 address_item address_defaults = {
 328   NULL,                 /* next */
 329   NULL,                 /* parent */
 330   NULL,                 /* first */
 331   NULL,                 /* dupof */
 332   NULL,                 /* start_router */
 333   NULL,                 /* router */
 334   NULL,                 /* transport */
 335   NULL,                 /* host_list */
 336   NULL,                 /* host_used */
 337   NULL,                 /* fallback_hosts */
 338   NULL,                 /* reply */
 339   NULL,                 /* retries */
 340   NULL,                 /* address */
 341   NULL,                 /* unique */
 342   NULL,                 /* cc_local_part */
 343   NULL,                 /* lc_local_part */
 344   NULL,                 /* local_part */
 345   NULL,                 /* prefix */
 346   NULL,                 /* suffix */
 347   NULL,                 /* domain */
 348   NULL,                 /* address_retry_key */
 349   NULL,                 /* domain_retry_key */
 350   NULL,                 /* current_dir */
 351   NULL,                 /* home_dir */
 352   NULL,                 /* message */
 353   NULL,                 /* user_message */
 354   NULL,                 /* onetime_parent */
 355   NULL,                 /* pipe_expandn */
 356   NULL,                 /* return_filename */
 357   NULL,                 /* self_hostname */
 358   NULL,                 /* shadow_message */
 359 #ifdef SUPPORT_TLS
 360   NULL,                 /* cipher */
 361   NULL,                 /* ourcert */
 362   NULL,                 /* peercert */
 363   NULL,                 /* peerdn */
 364   OCSP_NOT_REQ,         /* ocsp */
 365 #endif
 366 #ifdef EXPERIMENTAL_DSN_INFO
 367   NULL,                 /* smtp_greeting */
 368   NULL,                 /* helo_response */
 369 #endif
 370   NULL,                 /* authenticator */
 371   NULL,                 /* auth_id */
 372   NULL,                 /* auth_sndr */
 373   NULL,                 /* dsn_orcpt */
 374   0,                    /* dsn_flags */
 375   0,                    /* dsn_aware */
 376   (uid_t)(-1),          /* uid */
 377   (gid_t)(-1),          /* gid */
 378   0,                    /* flags */
 379   { 0 },                /* domain_cache - any larger array should be zeroed */
 380   { 0 },                /* localpart_cache - ditto */
 381   -1,                   /* mode */
 382   0,                    /* more_errno */
 383   ERRNO_UNKNOWNERROR,   /* basic_errno */
 384   0,                    /* child_count */
 385   -1,                   /* return_file */
 386   SPECIAL_NONE,         /* special_action */
 387   DEFER,                /* transport_return */
 388   {                     /* fields that are propagated to children */
 389     NULL,               /* address_data */
 390     NULL,               /* domain_data */
 391     NULL,               /* localpart_data */
 392     NULL,               /* errors_address */
 393     NULL,               /* extra_headers */
 394     NULL,               /* remove_headers */
 395 #ifdef EXPERIMENTAL_SRS
 396     NULL,               /* srs_sender */
 397 #endif
 398 #ifdef SUPPORT_I18N
 399     FALSE,              /* utf8 */
 400 #endif
 401   }
 402 };
 403
 404 uschar *address_file           = NULL;
 405 uschar *address_pipe           = NULL;
 406 BOOL    address_test_mode      = FALSE;
 407 tree_node *addresslist_anchor  = NULL;
 408 int     addresslist_count      = 0;
 409 gid_t  *admin_groups           = NULL;
 410 BOOL    admin_user             = FALSE;
 411 BOOL    allow_auth_unadvertised= FALSE;
 412 BOOL    allow_domain_literals  = FALSE;
 413 BOOL    allow_mx_to_ip         = FALSE;
 414 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 415 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 416 BOOL    allow_utf8_domains     = FALSE;
 417 uschar *authenticated_fail_id  = NULL;
 418 uschar *authenticated_id       = NULL;
 419 uschar *authenticated_sender   = NULL;
 420 BOOL    authentication_failed  = FALSE;
 421 auth_instance  *auths          = NULL;
 422 uschar *auth_advertise_hosts   = US"*";
 423 auth_instance auth_defaults    = {
 424     NULL,                      /* chain pointer */
 425     NULL,                      /* name */
 426     NULL,                      /* info */
 427     NULL,                      /* private options block pointer */
 428     NULL,                      /* driver_name */
 429     NULL,                      /* advertise_condition */
 430     NULL,                      /* client_condition */
 431     NULL,                      /* public_name */
 432     NULL,                      /* set_id */
 433     NULL,                      /* set_client_id */
 434     NULL,                      /* server_mail_auth_condition */
 435     NULL,                      /* server_debug_string */
 436     NULL,                      /* server_condition */
 437     FALSE,                     /* client */
 438     FALSE,                     /* server */
 439     FALSE                      /* advertised */
 440 };
 441
 442 uschar *auth_defer_msg         = US"reason not recorded";
 443 uschar *auth_defer_user_msg    = US"";
 444 uschar *auth_vars[AUTH_VARS];
 445 int     auto_thaw              = 0;
 446 #ifdef WITH_CONTENT_SCAN
 447 BOOL    av_failed              = FALSE;
 448 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 449 #endif
 450
 451 BOOL    background_daemon      = TRUE;
 452
 453 #if BASE_62 == 62
 454 uschar *base62_chars=
 455     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 456 #else
 457 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 458 #endif
 459
 460 uschar *bi_command             = NULL;
 461 uschar *big_buffer             = NULL;
 462 int     big_buffer_size        = BIG_BUFFER_SIZE;
 463 #ifdef EXPERIMENTAL_BRIGHTMAIL
 464 uschar *bmi_alt_location       = NULL;
 465 uschar *bmi_base64_tracker_verdict = NULL;
 466 uschar *bmi_base64_verdict     = NULL;
 467 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 468 int     bmi_deliver            = 1;
 469 int     bmi_run                = 0;
 470 uschar *bmi_verdicts           = NULL;
 471 #endif
 472 int     body_8bitmime          = 0;
 473 int     body_linecount         = 0;
 474 int     body_zerocount         = 0;
 475 uschar *bounce_message_file    = NULL;
 476 uschar *bounce_message_text    = NULL;
 477 uschar *bounce_recipient       = NULL;
 478 BOOL    bounce_return_body     = TRUE;
 479 int     bounce_return_linesize_limit = 998;
 480 BOOL    bounce_return_message  = TRUE;
 481 int     bounce_return_size_limit = 100*1024;
 482 uschar *bounce_sender_authentication = NULL;
 483 int     bsmtp_transaction_linecount = 0;
 484
 485 uschar *callout_address        = NULL;
 486 int     callout_cache_domain_positive_expire = 7*24*60*60;
 487 int     callout_cache_domain_negative_expire = 3*60*60;
 488 int     callout_cache_positive_expire = 24*60*60;
 489 int     callout_cache_negative_expire = 2*60*60;
 490 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 491 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 492 int     check_log_inodes       = 0;
 493 int     check_log_space        = 0;
 494 BOOL    check_rfc2047_length   = TRUE;
 495 int     check_spool_inodes     = 0;
 496 int     check_spool_space      = 0;
 497
 498 uschar *chunking_advertise_hosts = US"*";
 499 unsigned chunking_datasize     = 0;
 500 unsigned chunking_data_left    = 0;
 501 BOOL    chunking_offered       = FALSE;
 502 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 503 const pcre *regex_CHUNKING     = NULL;
 504
 505 uschar *client_authenticator   = NULL;
 506 uschar *client_authenticated_id = NULL;
 507 uschar *client_authenticated_sender = NULL;
 508 int     clmacro_count          = 0;
 509 uschar *clmacros[MAX_CLMACROS];
 510 BOOL    config_changed         = FALSE;
 511 FILE   *config_file            = NULL;
 512 uschar *config_filename        = NULL;
 513 int     config_lineno          = 0;
 514 #ifdef CONFIGURE_GROUP
 515 gid_t   config_gid             = CONFIGURE_GROUP;
 516 #endif
 517 uschar *config_main_filelist   = US CONFIGURE_FILE
 518                          "\0<-----------Space to patch configure_filename->";
 519 uschar *config_main_filename   = NULL;
 520 uschar *config_main_directory  = NULL;
 521
 522 #ifdef CONFIGURE_OWNER
 523 uid_t   config_uid             = CONFIGURE_OWNER;
 524 #endif
 525
 526 int     connection_max_messages= -1;
 527 uschar *continue_hostname      = NULL;
 528 uschar *continue_host_address  = NULL;
 529 BOOL    continue_more          = FALSE;
 530 int     continue_sequence      = 1;
 531 uschar *continue_transport     = NULL;
 532
 533 uschar *csa_status             = NULL;
 534 cut_t   cutthrough = {
 535   FALSE,                                /* delivery: when to attempt */
 536   -1,                                   /* fd: open connection */
 537   0,                                    /* nrcpt: number of addresses */
 538 };
 539
 540 BOOL    daemon_listen          = FALSE;
 541 uschar *daemon_smtp_port       = US"smtp";
 542 int     daemon_startup_retries = 9;
 543 int     daemon_startup_sleep   = 30;
 544
 545 #ifdef EXPERIMENTAL_DCC
 546 BOOL    dcc_direct_add_header  = FALSE;
 547 uschar *dcc_header             = NULL;
 548 uschar *dcc_result             = NULL;
 549 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 550 uschar *dccifd_options         = US"header";
 551 #endif
 552
 553 BOOL    debug_daemon           = FALSE;
 554 int     debug_fd               = -1;
 555 FILE   *debug_file             = NULL;
 556 int     debug_notall[]         = {
 557   Di_memory,
 558   -1
 559 };
 560 bit_table debug_options[]      = { /* must be in alphabetical order */
 561   BIT_TABLE(D, acl),
 562   BIT_TABLE(D, all),
 563   BIT_TABLE(D, auth),
 564   BIT_TABLE(D, deliver),
 565   BIT_TABLE(D, dns),
 566   BIT_TABLE(D, dnsbl),
 567   BIT_TABLE(D, exec),
 568   BIT_TABLE(D, expand),
 569   BIT_TABLE(D, filter),
 570   BIT_TABLE(D, hints_lookup),
 571   BIT_TABLE(D, host_lookup),
 572   BIT_TABLE(D, ident),
 573   BIT_TABLE(D, interface),
 574   BIT_TABLE(D, lists),
 575   BIT_TABLE(D, load),
 576   BIT_TABLE(D, local_scan),
 577   BIT_TABLE(D, lookup),
 578   BIT_TABLE(D, memory),
 579   BIT_TABLE(D, pid),
 580   BIT_TABLE(D, process_info),
 581   BIT_TABLE(D, queue_run),
 582   BIT_TABLE(D, receive),
 583   BIT_TABLE(D, resolver),
 584   BIT_TABLE(D, retry),
 585   BIT_TABLE(D, rewrite),
 586   BIT_TABLE(D, route),
 587   BIT_TABLE(D, timestamp),
 588   BIT_TABLE(D, tls),
 589   BIT_TABLE(D, transport),
 590   BIT_TABLE(D, uid),
 591   BIT_TABLE(D, verify),
 592 };
 593 int     debug_options_count    = nelem(debug_options);
 594
 595 unsigned int debug_selector    = 0;
 596 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 597 uschar *delay_warning_condition=
 598   US"${if or {"
 599             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 600             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 601             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 602             "} {no}{yes}}";
 603 BOOL    delivery_date_remove   = TRUE;
 604 uschar *deliver_address_data   = NULL;
 605 int     deliver_datafile       = -1;
 606 const uschar *deliver_domain   = NULL;
 607 uschar *deliver_domain_data    = NULL;
 608 const uschar *deliver_domain_orig = NULL;
 609 const uschar *deliver_domain_parent = NULL;
 610 BOOL    deliver_drop_privilege = FALSE;
 611 BOOL    deliver_firsttime      = FALSE;
 612 BOOL    deliver_force          = FALSE;
 613 BOOL    deliver_freeze         = FALSE;
 614 time_t  deliver_frozen_at      = 0;
 615 uschar *deliver_home           = NULL;
 616 const uschar *deliver_host     = NULL;
 617 const uschar *deliver_host_address = NULL;
 618 int     deliver_host_port      = 0;
 619 uschar *deliver_in_buffer      = NULL;
 620 ino_t   deliver_inode          = 0;
 621 uschar *deliver_localpart      = NULL;
 622 uschar *deliver_localpart_data = NULL;
 623 uschar *deliver_localpart_orig = NULL;
 624 uschar *deliver_localpart_parent = NULL;
 625 uschar *deliver_localpart_prefix = NULL;
 626 uschar *deliver_localpart_suffix = NULL;
 627 BOOL    deliver_force_thaw     = FALSE;
 628 BOOL    deliver_manual_thaw    = FALSE;
 629 uschar *deliver_out_buffer     = NULL;
 630 int     deliver_queue_load_max = -1;
 631 address_item  *deliver_recipients = NULL;
 632 uschar *deliver_selectstring   = NULL;
 633 BOOL    deliver_selectstring_regex = FALSE;
 634 uschar *deliver_selectstring_sender = NULL;
 635 BOOL    deliver_selectstring_sender_regex = FALSE;
 636 BOOL    disable_callout_flush  = FALSE;
 637 BOOL    disable_delay_flush    = FALSE;
 638 #ifdef ENABLE_DISABLE_FSYNC
 639 BOOL    disable_fsync          = FALSE;
 640 #endif
 641 BOOL    disable_ipv6           = FALSE;
 642 BOOL    disable_logging        = FALSE;
 643
 644 #ifndef DISABLE_DKIM
 645 BOOL    dkim_collect_input       = FALSE;
 646 uschar *dkim_cur_signer          = NULL;
 647 BOOL    dkim_disable_verify      = FALSE;
 648 int     dkim_key_length          = 0;
 649 uschar *dkim_signers             = NULL;
 650 uschar *dkim_signing_domain      = NULL;
 651 uschar *dkim_signing_selector    = NULL;
 652 uschar *dkim_verify_signers      = US"$dkim_signers";
 653 #endif
 654 #ifdef EXPERIMENTAL_DMARC
 655 BOOL    dmarc_has_been_checked  = FALSE;
 656 uschar *dmarc_ar_header         = NULL;
 657 uschar *dmarc_domain_policy     = NULL;
 658 uschar *dmarc_forensic_sender   = NULL;
 659 uschar *dmarc_history_file      = NULL;
 660 uschar *dmarc_status            = NULL;
 661 uschar *dmarc_status_text       = NULL;
 662 uschar *dmarc_tld_file          = NULL;
 663 uschar *dmarc_used_domain       = NULL;
 664 BOOL    dmarc_disable_verify    = FALSE;
 665 BOOL    dmarc_enable_forensic   = FALSE;
 666 #endif
 667
 668 uschar *dns_again_means_nonexist = NULL;
 669 int     dns_csa_search_limit   = 5;
 670 BOOL    dns_csa_use_reverse    = TRUE;
 671 #ifdef EXPERIMENTAL_DANE
 672 int     dns_dane_ok            = -1;
 673 #endif
 674 uschar *dns_ipv4_lookup        = NULL;
 675 int     dns_retrans            = 0;
 676 int     dns_retry              = 0;
 677 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 678 uschar *dns_trust_aa           = NULL;
 679 int     dns_use_edns0          = -1; /* <0 = not coerced */
 680 uschar *dnslist_domain         = NULL;
 681 uschar *dnslist_matched        = NULL;
 682 uschar *dnslist_text           = NULL;
 683 uschar *dnslist_value          = NULL;
 684 tree_node *domainlist_anchor   = NULL;
 685 int     domainlist_count       = 0;
 686 BOOL    dont_deliver           = FALSE;
 687 BOOL    dot_ends               = TRUE;
 688 BOOL    drop_cr                = FALSE;         /* No longer used */
 689 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 690
 691 BOOL    enable_dollar_recipients = FALSE;
 692 BOOL    envelope_to_remove     = TRUE;
 693 int     errno_quota            = ERRNO_QUOTA;
 694 uschar *errors_copy            = NULL;
 695 int     error_handling         = ERRORS_SENDER;
 696 uschar *errors_reply_to        = NULL;
 697 int     errors_sender_rc       = EXIT_FAILURE;
 698 #ifndef DISABLE_EVENT
 699 uschar *event_action             = NULL;        /* expansion for delivery events */
 700 uschar *event_data               = NULL;        /* auxilary data variable for event */
 701 int     event_defer_errno        = 0;
 702 const uschar *event_name         = NULL;        /* event name variable */
 703 #endif
 704
 705
 706 gid_t   exim_gid               = EXIM_GID;
 707 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 708 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 709                         "\0<---------------Space to patch exim_path->";
 710 uid_t   exim_uid               = EXIM_UID;
 711 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 712 int     expand_forbid          = 0;
 713 int     expand_nlength[EXPAND_MAXN+1];
 714 int     expand_nmax            = -1;
 715 uschar *expand_nstring[EXPAND_MAXN+1];
 716 BOOL    expand_string_forcedfail = FALSE;
 717 uschar *expand_string_message;
 718 BOOL    extract_addresses_remove_arguments = TRUE;
 719 uschar *extra_local_interfaces = NULL;
 720
 721 int     fake_response          = OK;
 722 uschar *fake_response_text     = US"Your message has been rejected but is "
 723                                    "being kept for evaluation.\nIf it was a "
 724                                    "legitimate message, it may still be "
 725                                    "delivered to the target recipient(s).";
 726 int     filter_n[FILTER_VARIABLE_COUNT];
 727 BOOL    filter_running         = FALSE;
 728 int     filter_sn[FILTER_VARIABLE_COUNT];
 729 int     filter_test            = FTEST_NONE;
 730 uschar *filter_test_sfile      = NULL;
 731 uschar *filter_test_ufile      = NULL;
 732 uschar *filter_thisaddress     = NULL;
 733 int     finduser_retries       = 0;
 734 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 735 uschar *freeze_tell            = NULL;
 736 uschar *freeze_tell_config     = NULL;
 737 uschar *fudged_queue_times     = US"";
 738
 739 uschar *gecos_name             = NULL;
 740 uschar *gecos_pattern          = NULL;
 741 rewrite_rule  *global_rewrite_rules = NULL;
 742
 743 uschar *headers_charset        = US HEADERS_CHARSET;
 744 int     header_insert_maxlen   = 64 * 1024;
 745 header_line  *header_last      = NULL;
 746 header_line  *header_list      = NULL;
 747 int     header_maxsize         = HEADER_MAXSIZE;
 748 int     header_line_maxsize    = 0;
 749
 750 header_name header_names[] = {
 751   { US"bcc",            3, TRUE,  htype_bcc },
 752   { US"cc",             2, TRUE,  htype_cc },
 753   { US"date",           4, TRUE,  htype_date },
 754   { US"delivery-date", 13, FALSE, htype_delivery_date },
 755   { US"envelope-to",   11, FALSE, htype_envelope_to },
 756   { US"from",           4, TRUE,  htype_from },
 757   { US"message-id",    10, TRUE,  htype_id },
 758   { US"received",       8, FALSE, htype_received },
 759   { US"reply-to",       8, FALSE, htype_reply_to },
 760   { US"return-path",   11, FALSE, htype_return_path },
 761   { US"sender",         6, TRUE,  htype_sender },
 762   { US"subject",        7, FALSE, htype_subject },
 763   { US"to",             2, TRUE,  htype_to }
 764 };
 765
 766 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 767
 768 BOOL    header_rewritten       = FALSE;
 769 uschar *helo_accept_junk_hosts = NULL;
 770 uschar *helo_allow_chars       = US"";
 771 uschar *helo_lookup_domains    = US"@ : @[]";
 772 uschar *helo_try_verify_hosts  = NULL;
 773 BOOL    helo_verified          = FALSE;
 774 BOOL    helo_verify_failed     = FALSE;
 775 uschar *helo_verify_hosts      = NULL;
 776 const uschar *hex_digits       = CUS"0123456789abcdef";
 777 uschar *hold_domains           = NULL;
 778 BOOL    host_checking          = FALSE;
 779 BOOL    host_checking_callout  = FALSE;
 780 uschar *host_data              = NULL;
 781 BOOL    host_find_failed_syntax= FALSE;
 782 uschar *host_lookup            = NULL;
 783 BOOL    host_lookup_deferred   = FALSE;
 784 BOOL    host_lookup_failed     = FALSE;
 785 uschar *host_lookup_order      = US"bydns:byaddr";
 786 uschar *host_lookup_msg        = US"";
 787 int     host_number            = 0;
 788 uschar *host_number_string     = NULL;
 789 uschar *host_reject_connection = NULL;
 790 tree_node *hostlist_anchor     = NULL;
 791 int     hostlist_count         = 0;
 792 uschar *hosts_treat_as_local   = NULL;
 793 uschar *hosts_connection_nolog = NULL;
 794
 795 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 796 BOOL    ignore_fromline_local  = FALSE;
 797 uschar *ignore_fromline_hosts  = NULL;
 798 BOOL    inetd_wait_mode        = FALSE;
 799 int     inetd_wait_timeout     = -1;
 800 uschar *initial_cwd            = NULL;
 801 uschar *interface_address      = NULL;
 802 int     interface_port         = -1;
 803 BOOL    is_inetd               = FALSE;
 804 uschar *iterate_item           = NULL;
 805
 806 int     journal_fd             = -1;
 807
 808 uschar *keep_environment       = NULL;
 809
 810 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 811
 812 uschar *eldap_dn               = NULL;
 813 int     load_average           = -2;
 814 BOOL    local_error_message    = FALSE;
 815 BOOL    local_from_check       = TRUE;
 816 uschar *local_from_prefix      = NULL;
 817 uschar *local_from_suffix      = NULL;
 818
 819 #if HAVE_IPV6
 820 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 821 #else
 822 uschar *local_interfaces       = US"0.0.0.0";
 823 #endif
 824
 825 uschar *local_scan_data        = NULL;
 826 int     local_scan_timeout     = 5*60;
 827 BOOL    local_sender_retain    = FALSE;
 828 gid_t   local_user_gid         = (gid_t)(-1);
 829 uid_t   local_user_uid         = (uid_t)(-1);
 830
 831 tree_node *localpartlist_anchor= NULL;
 832 int     localpartlist_count    = 0;
 833 uschar *log_buffer             = NULL;
 834
 835 int     log_default[]          = { /* for initializing log_selector */
 836   Li_acl_warn_skipped,
 837   Li_connection_reject,
 838   Li_delay_delivery,
 839   Li_dnslist_defer,
 840   Li_etrn,
 841   Li_host_lookup_failed,
 842   Li_lost_incoming_connection,
 843   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 844   Li_queue_run,
 845   Li_rejected_header,
 846   Li_retry_defer,
 847   Li_sender_verify_fail,
 848   Li_size_reject,
 849   Li_skip_delivery,
 850   Li_smtp_confirmation,
 851   Li_tls_certificate_verified,
 852   Li_tls_cipher,
 853   -1
 854 };
 855
 856 uschar *log_file_path          = US LOG_FILE_PATH
 857                            "\0<--------------Space to patch log_file_path->";
 858
 859 int     log_notall[]           = {
 860   -1
 861 };
 862 bit_table log_options[]        = { /* must be in alphabetical order */
 863   BIT_TABLE(L, 8bitmime),
 864   BIT_TABLE(L, acl_warn_skipped),
 865   BIT_TABLE(L, address_rewrite),
 866   BIT_TABLE(L, all),
 867   BIT_TABLE(L, all_parents),
 868   BIT_TABLE(L, arguments),
 869   BIT_TABLE(L, connection_reject),
 870   BIT_TABLE(L, delay_delivery),
 871   BIT_TABLE(L, deliver_time),
 872   BIT_TABLE(L, delivery_size),
 873   BIT_TABLE(L, dnslist_defer),
 874   BIT_TABLE(L, dnssec),
 875   BIT_TABLE(L, etrn),
 876   BIT_TABLE(L, host_lookup_failed),
 877   BIT_TABLE(L, ident_timeout),
 878   BIT_TABLE(L, incoming_interface),
 879   BIT_TABLE(L, incoming_port),
 880   BIT_TABLE(L, lost_incoming_connection),
 881   BIT_TABLE(L, outgoing_interface),
 882   BIT_TABLE(L, outgoing_port),
 883   BIT_TABLE(L, pid),
 884 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 885   BIT_TABLE(L, proxy),
 886 #endif
 887   BIT_TABLE(L, queue_run),
 888   BIT_TABLE(L, queue_time),
 889   BIT_TABLE(L, queue_time_overall),
 890   BIT_TABLE(L, received_recipients),
 891   BIT_TABLE(L, received_sender),
 892   BIT_TABLE(L, rejected_header),
 893   { US"rejected_headers", Li_rejected_header },
 894   BIT_TABLE(L, retry_defer),
 895   BIT_TABLE(L, return_path_on_delivery),
 896   BIT_TABLE(L, sender_on_delivery),
 897   BIT_TABLE(L, sender_verify_fail),
 898   BIT_TABLE(L, size_reject),
 899   BIT_TABLE(L, skip_delivery),
 900   BIT_TABLE(L, smtp_confirmation),
 901   BIT_TABLE(L, smtp_connection),
 902   BIT_TABLE(L, smtp_incomplete_transaction),
 903   BIT_TABLE(L, smtp_mailauth),
 904   BIT_TABLE(L, smtp_no_mail),
 905   BIT_TABLE(L, smtp_protocol_error),
 906   BIT_TABLE(L, smtp_syntax_error),
 907   BIT_TABLE(L, subject),
 908   BIT_TABLE(L, tls_certificate_verified),
 909   BIT_TABLE(L, tls_cipher),
 910   BIT_TABLE(L, tls_peerdn),
 911   BIT_TABLE(L, tls_sni),
 912   BIT_TABLE(L, unknown_in_list),
 913 };
 914 int     log_options_count      = nelem(log_options);
 915
 916 int     log_reject_target      = 0;
 917 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 918 uschar *log_selector_string    = NULL;
 919 FILE   *log_stderr             = NULL;
 920 BOOL    log_testing_mode       = FALSE;
 921 BOOL    log_timezone           = FALSE;
 922 uschar *login_sender_address   = NULL;
 923 uschar *lookup_dnssec_authenticated = NULL;
 924 int     lookup_open_max        = 25;
 925 uschar *lookup_value           = NULL;
 926
 927 macro_item  *macros            = NULL;
 928 uschar *mailstore_basename     = NULL;
 929 #ifdef WITH_CONTENT_SCAN
 930 uschar *malware_name           = NULL;  /* Virus Name */
 931 #endif
 932 int     max_received_linelength= 0;
 933 int     max_username_length    = 0;
 934 int     message_age            = 0;
 935 uschar *message_body           = NULL;
 936 uschar *message_body_end       = NULL;
 937 BOOL    message_body_newlines  = FALSE;
 938 int     message_body_size      = 0;
 939 int     message_body_visible   = 500;
 940 int     message_ended          = END_NOTSTARTED;
 941 uschar *message_headers        = NULL;
 942 uschar *message_id;
 943 uschar *message_id_domain      = NULL;
 944 uschar *message_id_text        = NULL;
 945 struct timeval message_id_tv   = { 0, 0 };
 946 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 947 uschar *message_id_external;
 948 int     message_linecount      = 0;
 949 BOOL    message_logs           = TRUE;
 950 int     message_size           = 0;
 951 uschar *message_size_limit     = US"50M";
 952 #ifdef SUPPORT_I18N
 953 BOOL    message_smtputf8       = FALSE;
 954 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 955 #endif
 956 uschar  message_subdir[2]      = { 0, 0 };
 957 uschar *message_reference      = NULL;
 958
 959 /* MIME ACL expandables */
 960 #ifdef WITH_CONTENT_SCAN
 961 int     mime_anomaly_level     = 0;
 962 const uschar *mime_anomaly_text      = NULL;
 963 uschar *mime_boundary          = NULL;
 964 uschar *mime_charset           = NULL;
 965 uschar *mime_content_description = NULL;
 966 uschar *mime_content_disposition = NULL;
 967 uschar *mime_content_id        = NULL;
 968 unsigned int mime_content_size = 0;
 969 uschar *mime_content_transfer_encoding = NULL;
 970 uschar *mime_content_type      = NULL;
 971 uschar *mime_decoded_filename  = NULL;
 972 uschar *mime_filename          = NULL;
 973 int     mime_is_multipart      = 0;
 974 int     mime_is_coverletter    = 0;
 975 int     mime_is_rfc822         = 0;
 976 int     mime_part_count        = -1;
 977 #endif
 978
 979 BOOL    mua_wrapper            = FALSE;
 980
 981 uid_t  *never_users            = NULL;
 982 #ifdef WITH_CONTENT_SCAN
 983 BOOL    no_mbox_unspool        = FALSE;
 984 #endif
 985 BOOL    no_multiline_responses = FALSE;
 986
 987 uid_t   original_euid;
 988 gid_t   originator_gid;
 989 uschar *originator_login       = NULL;
 990 uschar *originator_name        = NULL;
 991 uid_t   originator_uid;
 992 uschar *override_local_interfaces = NULL;
 993 uschar *override_pid_file_path = NULL;
 994
 995 BOOL    parse_allow_group      = FALSE;
 996 BOOL    parse_found_group      = FALSE;
 997 uschar *percent_hack_domains   = NULL;
 998 uschar *pid_file_path          = US PID_FILE_PATH
 999                            "\0<--------------Space to patch pid_file_path->";
1000 BOOL    pipelining_enable      = TRUE;
1001 uschar *pipelining_advertise_hosts = US"*";
1002 BOOL    preserve_message_logs  = FALSE;
1003 uschar *primary_hostname       = NULL;
1004 BOOL    print_topbitchars      = FALSE;
1005 uschar  process_info[PROCESS_INFO_SIZE];
1006 int     process_info_len       = 0;
1007 uschar *process_log_path       = NULL;
1008 BOOL    prod_requires_admin    = TRUE;
1009
1010 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1011 uschar *hosts_proxy            = US"";
1012 uschar *proxy_external_address = US"";
1013 int     proxy_external_port    = 0;
1014 uschar *proxy_local_address    = US"";
1015 int     proxy_local_port       = 0;
1016 BOOL    proxy_session          = FALSE;
1017 BOOL    proxy_session_failed   = FALSE;
1018 #endif
1019
1020 uschar *prvscheck_address      = NULL;
1021 uschar *prvscheck_keynum       = NULL;
1022 uschar *prvscheck_result       = NULL;
1023
1024
1025 const uschar *qualify_domain_recipient = NULL;
1026 uschar *qualify_domain_sender  = NULL;
1027 BOOL    queue_2stage           = FALSE;
1028 uschar *queue_domains          = NULL;
1029 int     queue_interval         = -1;
1030 BOOL    queue_list_requires_admin = TRUE;
1031 uschar *queue_name             = US"";
1032 BOOL    queue_only             = FALSE;
1033 uschar *queue_only_file        = NULL;
1034 int     queue_only_load        = -1;
1035 BOOL    queue_only_load_latch  = TRUE;
1036 BOOL    queue_only_override    = TRUE;
1037 BOOL    queue_only_policy      = FALSE;
1038 BOOL    queue_run_first_delivery = FALSE;
1039 BOOL    queue_run_force        = FALSE;
1040 BOOL    queue_run_in_order     = FALSE;
1041 BOOL    queue_run_local        = FALSE;
1042 uschar *queue_run_max          = US"5";
1043 pid_t   queue_run_pid          = (pid_t)0;
1044 int     queue_run_pipe         = -1;
1045 BOOL    queue_running          = FALSE;
1046 BOOL    queue_smtp             = FALSE;
1047 uschar *queue_smtp_domains     = NULL;
1048
1049 unsigned int random_seed       = 0;
1050 tree_node *ratelimiters_cmd    = NULL;
1051 tree_node *ratelimiters_conn   = NULL;
1052 tree_node *ratelimiters_mail   = NULL;
1053 uschar *raw_active_hostname    = NULL;
1054 uschar *raw_sender             = NULL;
1055 uschar **raw_recipients        = NULL;
1056 int     raw_recipients_count   = 0;
1057
1058 int     rcpt_count             = 0;
1059 int     rcpt_fail_count        = 0;
1060 int     rcpt_defer_count       = 0;
1061 gid_t   real_gid;
1062 uid_t   real_uid;
1063 BOOL    really_exim            = TRUE;
1064 BOOL    receive_call_bombout   = FALSE;
1065 int     receive_linecount      = 0;
1066 int     receive_messagecount   = 0;
1067 int     receive_timeout        = 0;
1068 int     received_count         = 0;
1069 uschar *received_for           = NULL;
1070
1071 /*  This is the default text for Received headers generated by Exim. The
1072 date  will be automatically added on the end. */
1073
1074 uschar *received_header_text   = US
1075      "Received: "
1076      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1077      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1078      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1079      "by $primary_hostname "
1080      "${if def:received_protocol {with $received_protocol}} "
1081      #ifdef SUPPORT_TLS
1082      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1083      #endif
1084      "(Exim $version_number)\n\t"
1085      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1086      "id $message_exim_id"
1087      "${if def:received_for {\n\tfor $received_for}}"
1088      "\0<---------------Space to patch received_header_text->";
1089
1090 int     received_headers_max   = 30;
1091 uschar *received_protocol      = NULL;
1092 int     received_time          = 0;
1093 uschar *recipient_data         = NULL;
1094 uschar *recipient_unqualified_hosts = NULL;
1095 uschar *recipient_verify_failure = NULL;
1096 int     recipients_count       = 0;
1097 BOOL    recipients_discarded   = FALSE;
1098 recipient_item  *recipients_list = NULL;
1099 int     recipients_list_max    = 0;
1100 int     recipients_max         = 0;
1101 BOOL    recipients_max_reject  = FALSE;
1102 const pcre *regex_AUTH         = NULL;
1103 const pcre *regex_check_dns_names = NULL;
1104 const pcre *regex_From         = NULL;
1105 const pcre *regex_IGNOREQUOTA  = NULL;
1106 const pcre *regex_PIPELINING   = NULL;
1107 const pcre *regex_SIZE         = NULL;
1108 const pcre *regex_ismsgid      = NULL;
1109 const pcre *regex_smtp_code    = NULL;
1110 uschar *regex_vars[REGEX_VARS];
1111 #ifdef WHITELIST_D_MACROS
1112 const pcre *regex_whitelisted_macro = NULL;
1113 #endif
1114 #ifdef WITH_CONTENT_SCAN
1115 uschar *regex_match_string     = NULL;
1116 #endif
1117 int     remote_delivery_count  = 0;
1118 int     remote_max_parallel    = 2;
1119 uschar *remote_sort_domains    = NULL;
1120 int     retry_data_expire      = 7*24*60*60;
1121 int     retry_interval_max     = 24*60*60;
1122 int     retry_maximum_timeout  = 0;        /* set from retry config */
1123 retry_config  *retries         = NULL;
1124 uschar *return_path            = NULL;
1125 BOOL    return_path_remove     = TRUE;
1126 int     rewrite_existflags     = 0;
1127 uschar *rfc1413_hosts          = US"@[]";
1128 int     rfc1413_query_timeout  = 0;
1129 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1130 uid_t   root_gid               = ROOT_GID;
1131 uid_t   root_uid               = ROOT_UID;
1132
1133 router_instance  *routers  = NULL;
1134 router_instance  router_defaults = {
1135     NULL,                      /* chain pointer */
1136     NULL,                      /* name */
1137     NULL,                      /* info */
1138     NULL,                      /* private options block pointer */
1139     NULL,                      /* driver name */
1140
1141     NULL,                      /* address_data */
1142 #ifdef EXPERIMENTAL_BRIGHTMAIL
1143     NULL,                      /* bmi_rule */
1144 #endif
1145     NULL,                      /* cannot_route_message */
1146     NULL,                      /* condition */
1147     NULL,                      /* current_directory */
1148     NULL,                      /* debug_string */
1149     NULL,                      /* domains */
1150     NULL,                      /* errors_to */
1151     NULL,                      /* expand_gid */
1152     NULL,                      /* expand_uid */
1153     NULL,                      /* expand_more */
1154     NULL,                      /* expand_unseen */
1155     NULL,                      /* extra_headers */
1156     NULL,                      /* fallback_hosts */
1157     NULL,                      /* home_directory */
1158     NULL,                      /* ignore_target_hosts */
1159     NULL,                      /* local_parts */
1160     NULL,                      /* pass_router_name */
1161     NULL,                      /* prefix */
1162     NULL,                      /* redirect_router_name */
1163     NULL,                      /* remove_headers */
1164     NULL,                      /* require_files */
1165     NULL,                      /* router_home_directory */
1166     US"freeze",                /* self */
1167     NULL,                      /* senders */
1168     NULL,                      /* suffix */
1169     NULL,                      /* translate_ip_address */
1170     NULL,                      /* transport_name */
1171
1172     TRUE,                      /* address_test */
1173 #ifdef EXPERIMENTAL_BRIGHTMAIL
1174     FALSE,                     /* bmi_deliver_alternate */
1175     FALSE,                     /* bmi_deliver_default */
1176     FALSE,                     /* bmi_dont_deliver */
1177 #endif
1178     TRUE,                      /* expn */
1179     FALSE,                     /* caseful_local_part */
1180     FALSE,                     /* check_local_user */
1181     FALSE,                     /* disable_logging */
1182     FALSE,                     /* fail_verify_recipient */
1183     FALSE,                     /* fail_verify_sender */
1184     FALSE,                     /* gid_set */
1185     FALSE,                     /* initgroups */
1186     TRUE_UNSET,                /* log_as_local */
1187     TRUE,                      /* more */
1188     FALSE,                     /* pass_on_timeout */
1189     FALSE,                     /* prefix_optional */
1190     TRUE,                      /* repeat_use */
1191     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1192     FALSE,                     /* same_domain_copy_routing */
1193     FALSE,                     /* self_rewrite */
1194     FALSE,                     /* suffix_optional */
1195     FALSE,                     /* verify_only */
1196     TRUE,                      /* verify_recipient */
1197     TRUE,                      /* verify_sender */
1198     FALSE,                     /* uid_set */
1199     FALSE,                     /* unseen */
1200     FALSE,                     /* dsn_lasthop */
1201
1202     self_freeze,               /* self_code */
1203     (uid_t)(-1),               /* uid */
1204     (gid_t)(-1),               /* gid */
1205
1206     NULL,                      /* fallback_hostlist */
1207     NULL,                      /* transport instance */
1208     NULL,                      /* pass_router */
1209     NULL,                      /* redirect_router */
1210
1211     { NULL, NULL },            /* dnssec_domains {require,request} */
1212 };
1213
1214 uschar *router_name            = NULL;
1215
1216 ip_address_item *running_interfaces = NULL;
1217 BOOL    running_in_test_harness = FALSE;
1218
1219 /* This is a weird one. The following string gets patched in the binary by the
1220 script that sets up a copy of Exim for running in the test harness. It seems
1221 that compilers are now clever, and share constant strings if they can.
1222 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1223 make use of the end of this string in order to save space. So the patching then
1224 wrecks this. We defeat this optimization by adding some additional characters
1225 onto the end of the string. */
1226
1227 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1228
1229 int     runrc                  = 0;
1230
1231 uschar *search_error_message   = NULL;
1232 BOOL    search_find_defer      = FALSE;
1233 uschar *self_hostname          = NULL;
1234 uschar *sender_address         = NULL;
1235 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1236 uschar *sender_address_data    = NULL;
1237 BOOL    sender_address_forced  = FALSE;
1238 uschar *sender_address_unrewritten = NULL;
1239 uschar *sender_data            = NULL;
1240 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1241 uschar *sender_fullhost        = NULL;
1242 BOOL    sender_helo_dnssec     = FALSE;
1243 uschar *sender_helo_name       = NULL;
1244 uschar **sender_host_aliases   = &no_aliases;
1245 uschar *sender_host_address    = NULL;
1246 uschar *sender_host_authenticated = NULL;
1247 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1248 BOOL    sender_host_dnssec     = FALSE;
1249 uschar *sender_host_name       = NULL;
1250 int     sender_host_port       = 0;
1251 BOOL    sender_host_notsocket  = FALSE;
1252 BOOL    sender_host_unknown    = FALSE;
1253 uschar *sender_ident           = NULL;
1254 BOOL    sender_local           = FALSE;
1255 BOOL    sender_name_forced     = FALSE;
1256 uschar *sender_rate            = NULL;
1257 uschar *sender_rate_limit      = NULL;
1258 uschar *sender_rate_period     = NULL;
1259 uschar *sender_rcvhost         = NULL;
1260 BOOL    sender_set_untrusted   = FALSE;
1261 uschar *sender_unqualified_hosts = NULL;
1262 uschar *sender_verify_failure = NULL;
1263 address_item *sender_verified_list  = NULL;
1264 address_item *sender_verified_failed = NULL;
1265 int     sender_verified_rc     = -1;
1266 BOOL    sender_verified_responded = FALSE;
1267 uschar *sending_ip_address     = NULL;
1268 int     sending_port           = -1;
1269 SIGNAL_BOOL sigalrm_seen       = FALSE;
1270 uschar **sighup_argv           = NULL;
1271 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1272 int     smtp_accept_count      = 0;
1273 BOOL    smtp_accept_keepalive  = TRUE;
1274 int     smtp_accept_max        = 20;
1275 int     smtp_accept_max_nonmail= 10;
1276 uschar *smtp_accept_max_nonmail_hosts = US"*";
1277 int     smtp_accept_max_per_connection = 1000;
1278 uschar *smtp_accept_max_per_host = NULL;
1279 int     smtp_accept_queue      = 0;
1280 int     smtp_accept_queue_per_connection = 10;
1281 int     smtp_accept_reserve    = 0;
1282 uschar *smtp_active_hostname   = NULL;
1283 BOOL    smtp_authenticated     = FALSE;
1284 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1285                              "Exim $version_number $tod_full"
1286                              "\0<---------------Space to patch smtp_banner->";
1287 BOOL    smtp_batched_input     = FALSE;
1288 BOOL    smtp_check_spool_space = TRUE;
1289 int     smtp_ch_index          = 0;
1290 uschar *smtp_cmd_argument      = NULL;
1291 uschar *smtp_cmd_buffer        = NULL;
1292 time_t  smtp_connection_start  = 0;
1293 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1294 int     smtp_connect_backlog   = 20;
1295 double  smtp_delay_mail        = 0.0;
1296 double  smtp_delay_rcpt        = 0.0;
1297 BOOL    smtp_enforce_sync      = TRUE;
1298 FILE   *smtp_in                = NULL;
1299 BOOL    smtp_input             = FALSE;
1300 int     smtp_load_reserve      = -1;
1301 int     smtp_mailcmd_count     = 0;
1302 FILE   *smtp_out               = NULL;
1303 uschar *smtp_etrn_command      = NULL;
1304 BOOL    smtp_etrn_serialize    = TRUE;
1305 int     smtp_max_synprot_errors= 3;
1306 int     smtp_max_unknown_commands = 3;
1307 uschar *smtp_notquit_reason    = NULL;
1308 uschar *smtp_ratelimit_hosts   = NULL;
1309 uschar *smtp_ratelimit_mail    = NULL;
1310 uschar *smtp_ratelimit_rcpt    = NULL;
1311 uschar *smtp_read_error        = US"";
1312 int     smtp_receive_timeout   = 5*60;
1313 uschar *smtp_receive_timeout_s = NULL;
1314 uschar *smtp_reserve_hosts     = NULL;
1315 BOOL    smtp_return_error_details = FALSE;
1316 int     smtp_rlm_base          = 0;
1317 double  smtp_rlm_factor        = 0.0;
1318 int     smtp_rlm_limit         = 0;
1319 int     smtp_rlm_threshold     = INT_MAX;
1320 int     smtp_rlr_base          = 0;
1321 double  smtp_rlr_factor        = 0.0;
1322 int     smtp_rlr_limit         = 0;
1323 int     smtp_rlr_threshold     = INT_MAX;
1324 BOOL    smtp_use_pipelining    = FALSE;
1325 BOOL    smtp_use_size          = FALSE;
1326 #ifdef SUPPORT_I18N
1327 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1328 #endif
1329
1330 #ifdef WITH_CONTENT_SCAN
1331 uschar *spamd_address          = US"127.0.0.1 783";
1332 uschar *spam_bar               = NULL;
1333 uschar *spam_report            = NULL;
1334 uschar *spam_action            = NULL;
1335 uschar *spam_score             = NULL;
1336 uschar *spam_score_int         = NULL;
1337 #endif
1338 #ifdef EXPERIMENTAL_SPF
1339 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1340 uschar *spf_header_comment     = NULL;
1341 uschar *spf_received           = NULL;
1342 uschar *spf_result             = NULL;
1343 uschar *spf_smtp_comment       = NULL;
1344 #endif
1345
1346 BOOL    split_spool_directory  = FALSE;
1347 uschar *spool_directory        = US SPOOL_DIRECTORY
1348                            "\0<--------------Space to patch spool_directory->";
1349 #ifdef EXPERIMENTAL_SRS
1350 uschar *srs_config             = NULL;
1351 uschar *srs_db_address         = NULL;
1352 uschar *srs_db_key             = NULL;
1353 int     srs_hashlength         = 6;
1354 int     srs_hashmin            = -1;
1355 int     srs_maxage             = 31;
1356 uschar *srs_orig_recipient     = NULL;
1357 uschar *srs_orig_sender        = NULL;
1358 uschar *srs_recipient          = NULL;
1359 uschar *srs_secrets            = NULL;
1360 uschar *srs_status             = NULL;
1361 BOOL    srs_usehash            = TRUE;
1362 BOOL    srs_usetimestamp       = TRUE;
1363 #endif
1364 BOOL    strict_acl_vars        = FALSE;
1365 int     string_datestamp_offset= -1;
1366 int     string_datestamp_length= 0;
1367 int     string_datestamp_type  = -1;
1368 BOOL    strip_excess_angle_brackets = FALSE;
1369 BOOL    strip_trailing_dot     = FALSE;
1370 uschar *submission_domain      = NULL;
1371 BOOL    submission_mode        = FALSE;
1372 uschar *submission_name        = NULL;
1373 BOOL    suppress_local_fixups  = FALSE;
1374 BOOL    suppress_local_fixups_default = FALSE;
1375 BOOL    synchronous_delivery   = FALSE;
1376 BOOL    syslog_duplication     = TRUE;
1377 int     syslog_facility        = LOG_MAIL;
1378 uschar *syslog_processname     = US"exim";
1379 BOOL    syslog_timestamp       = TRUE;
1380 uschar *system_filter          = NULL;
1381
1382 uschar *system_filter_directory_transport = NULL;
1383 uschar *system_filter_file_transport = NULL;
1384 uschar *system_filter_pipe_transport = NULL;
1385 uschar *system_filter_reply_transport = NULL;
1386
1387 gid_t   system_filter_gid      = 0;
1388 BOOL    system_filter_gid_set  = FALSE;
1389 uid_t   system_filter_uid      = (uid_t)-1;
1390 BOOL    system_filter_uid_set  = FALSE;
1391 BOOL    system_filtering       = FALSE;
1392
1393 BOOL    tcp_nodelay            = TRUE;
1394 #ifdef USE_TCP_WRAPPERS
1395 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1396 #endif
1397 int     test_harness_load_avg  = 0;
1398 int     thismessage_size_limit = 0;
1399 int     timeout_frozen_after   = 0;
1400 BOOL    timestamps_utc         = FALSE;
1401
1402 transport_instance  *transports = NULL;
1403
1404 transport_instance  transport_defaults = {
1405     NULL,                     /* chain pointer */
1406     NULL,                     /* name */
1407     NULL,                     /* info */
1408     NULL,                     /* private options block pointer */
1409     NULL,                     /* driver name */
1410     NULL,                     /* setup entry point */
1411     1,                        /* batch_max */
1412     NULL,                     /* batch_id */
1413     NULL,                     /* home_dir */
1414     NULL,                     /* current_dir */
1415     NULL,                     /* expand-multi-domain */
1416     TRUE,                     /* multi-domain */
1417     FALSE,                    /* overrides_hosts */
1418     100,                      /* max_addresses */
1419     500,                      /* connection_max_messages */
1420     FALSE,                    /* deliver_as_creator */
1421     FALSE,                    /* disable_logging */
1422     FALSE,                    /* initgroups */
1423     FALSE,                    /* uid_set */
1424     FALSE,                    /* gid_set */
1425     (uid_t)(-1),              /* uid */
1426     (gid_t)(-1),              /* gid */
1427     NULL,                     /* expand_uid */
1428     NULL,                     /* expand_gid */
1429     NULL,                     /* warn_message */
1430     NULL,                     /* shadow */
1431     NULL,                     /* shadow_condition */
1432     NULL,                     /* filter_command */
1433     NULL,                     /* add_headers */
1434     NULL,                     /* remove_headers */
1435     NULL,                     /* return_path */
1436     NULL,                     /* debug_string */
1437     NULL,                     /* max_parallel */
1438     NULL,                     /* message_size_limit */
1439     NULL,                     /* headers_rewrite */
1440     NULL,                     /* rewrite_rules */
1441     0,                        /* rewrite_existflags */
1442     300,                      /* filter_timeout */
1443     FALSE,                    /* body_only */
1444     FALSE,                    /* delivery_date_add */
1445     FALSE,                    /* envelope_to_add */
1446     FALSE,                    /* headers_only */
1447     FALSE,                    /* rcpt_include_affixes */
1448     FALSE,                    /* return_path_add */
1449     FALSE,                    /* return_output */
1450     FALSE,                    /* return_fail_output */
1451     FALSE,                    /* log_output */
1452     FALSE,                    /* log_fail_output */
1453     FALSE,                    /* log_defer_output */
1454     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1455                                  1 nor 0 so can detect unset */
1456 #ifndef DISABLE_EVENT
1457    ,NULL                      /* event_action */
1458 #endif
1459 };
1460
1461 int     transport_count;
1462 uschar *transport_name          = NULL;
1463 int     transport_newlines;
1464 const uschar **transport_filter_argv  = NULL;
1465 int     transport_filter_timeout;
1466 BOOL    transport_filter_timed_out = FALSE;
1467 int     transport_write_timeout= 0;
1468
1469 tree_node  *tree_dns_fails     = NULL;
1470 tree_node  *tree_duplicates    = NULL;
1471 tree_node  *tree_nonrecipients = NULL;
1472 tree_node  *tree_unusable      = NULL;
1473
1474 BOOL    trusted_caller         = FALSE;
1475 BOOL    trusted_config         = TRUE;
1476 gid_t  *trusted_groups         = NULL;
1477 uid_t  *trusted_users          = NULL;
1478 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1479
1480 uschar *unknown_login          = NULL;
1481 uschar *unknown_username       = NULL;
1482 uschar *untrusted_set_sender   = NULL;
1483
1484 /*  A regex for matching a "From_" line in an incoming message, in the form
1485
1486     From ph10 Fri Jan  5 12:35 GMT 1996
1487
1488 which  the "mail" commands send to the MTA (undocumented, of course), or in
1489 the  form
1490
1491     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1492
1493 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1494 Because  of variations in time formats, just match up to the minutes. That
1495 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1496 so  just require one digit for hours and minutes. The weekday is also absent
1497 in  some forms. */
1498
1499 uschar *uucp_from_pattern      = US
1500    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1501    "(?:"                                          /* Non-extracting bracket */
1502    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1503    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1504    ")"                                            /* End alternation */
1505    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1506
1507 uschar *uucp_from_sender       = US"$1";
1508
1509 uschar *verify_mode            = NULL;
1510 uschar *version_copyright      =
1511  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1512    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1513 uschar *version_date           = US"?";
1514 uschar *version_cnumber        = US"????";
1515 uschar *version_string         = US"?";
1516
1517 uschar *warn_message_file      = NULL;
1518 int     warning_count          = 0;
1519 uschar *warnmsg_delay          = NULL;
1520 uschar *warnmsg_recipients     = NULL;
1521 BOOL    write_rejectlog        = TRUE;
1522
1523
1524 /*  End of globals.c */