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 void (*receive_get_cache)(void)= NULL;
 192 int (*receive_ungetc)(int)     = stdin_ungetc;
 193 int (*receive_feof)(void)      = stdin_feof;
 194 int (*receive_ferror)(void)    = stdin_ferror;
 195 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 196 #endif
 197
 198
 199 /* List of per-address expansion variables for clearing and saving/restoring
 200 when verifying one address while routing/verifying another. We have to have
 201 the size explicit, because it is referenced from more than one module. */
 202
 203 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 204   CUSS &deliver_address_data,
 205   CUSS &deliver_domain,
 206   CUSS &deliver_domain_data,
 207   CUSS &deliver_domain_orig,
 208   CUSS &deliver_domain_parent,
 209   CUSS &deliver_localpart,
 210   CUSS &deliver_localpart_data,
 211   CUSS &deliver_localpart_orig,
 212   CUSS &deliver_localpart_parent,
 213   CUSS &deliver_localpart_prefix,
 214   CUSS &deliver_localpart_suffix,
 215   CUSS (uschar **)(&deliver_recipients),
 216   CUSS &deliver_host,
 217   CUSS &deliver_home,
 218   CUSS &address_file,
 219   CUSS &address_pipe,
 220   CUSS &self_hostname,
 221   NULL };
 222
 223 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 224
 225 /* General global variables */
 226
 227 header_line *acl_added_headers = NULL;
 228 tree_node *acl_anchor          = NULL;
 229 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 230                                   NULL, NULL, NULL, NULL};
 231 int     acl_narg               = 0;
 232
 233 uschar *acl_not_smtp           = NULL;
 234 #ifdef WITH_CONTENT_SCAN
 235 uschar *acl_not_smtp_mime      = NULL;
 236 #endif
 237 uschar *acl_not_smtp_start     = NULL;
 238 uschar *acl_removed_headers    = NULL;
 239 uschar *acl_smtp_auth          = NULL;
 240 uschar *acl_smtp_connect       = NULL;
 241 uschar *acl_smtp_data          = NULL;
 242 #ifndef DISABLE_PRDR
 243 uschar *acl_smtp_data_prdr     = US"accept";
 244 #endif
 245 #ifndef DISABLE_DKIM
 246 uschar *acl_smtp_dkim          = NULL;
 247 #endif
 248 uschar *acl_smtp_etrn          = NULL;
 249 uschar *acl_smtp_expn          = NULL;
 250 uschar *acl_smtp_helo          = NULL;
 251 uschar *acl_smtp_mail          = NULL;
 252 uschar *acl_smtp_mailauth      = NULL;
 253 #ifdef WITH_CONTENT_SCAN
 254 uschar *acl_smtp_mime          = NULL;
 255 #endif
 256 uschar *acl_smtp_notquit       = NULL;
 257 uschar *acl_smtp_predata       = NULL;
 258 uschar *acl_smtp_quit          = NULL;
 259 uschar *acl_smtp_rcpt          = NULL;
 260 uschar *acl_smtp_starttls      = NULL;
 261 uschar *acl_smtp_vrfy          = NULL;
 262
 263 BOOL    acl_temp_details       = FALSE;
 264 tree_node *acl_var_c           = NULL;
 265 tree_node *acl_var_m           = NULL;
 266 uschar *acl_verify_message     = NULL;
 267 string_item *acl_warn_logged   = NULL;
 268
 269 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 270 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 271
 272 uschar *acl_wherenames[]       = { US"RCPT",
 273                                    US"MAIL",
 274                                    US"PREDATA",
 275                                    US"MIME",
 276                                    US"DKIM",
 277                                    US"DATA",
 278 #ifndef DISABLE_PRDR
 279                                    US"PRDR",
 280 #endif
 281                                    US"non-SMTP",
 282                                    US"AUTH",
 283                                    US"connection",
 284                                    US"ETRN",
 285                                    US"EXPN",
 286                                    US"EHLO or HELO",
 287                                    US"MAILAUTH",
 288                                    US"non-SMTP-start",
 289                                    US"NOTQUIT",
 290                                    US"QUIT",
 291                                    US"STARTTLS",
 292                                    US"VRFY",
 293                                    US"delivery",
 294                                    US"unknown"
 295                                  };
 296
 297 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 298                                    US"550",     /* MAIL */
 299                                    US"550",     /* PREDATA */
 300                                    US"550",     /* MIME */
 301                                    US"550",     /* DKIM */
 302                                    US"550",     /* DATA */
 303 #ifndef DISABLE_PRDR
 304                                    US"550",    /* RCPT PRDR */
 305 #endif
 306                                    US"0",       /* not SMTP; not relevant */
 307                                    US"503",     /* AUTH */
 308                                    US"550",     /* connect */
 309                                    US"458",     /* ETRN */
 310                                    US"550",     /* EXPN */
 311                                    US"550",     /* HELO/EHLO */
 312                                    US"0",       /* MAILAUTH; not relevant */
 313                                    US"0",       /* not SMTP; not relevant */
 314                                    US"0",       /* NOTQUIT; not relevant */
 315                                    US"0",       /* QUIT; not relevant */
 316                                    US"550",     /* STARTTLS */
 317                                    US"252",     /* VRFY */
 318                                    US"0",       /* delivery; not relevant */
 319                                    US"0"        /* unknown; not relevant */
 320                                  };
 321
 322 BOOL    active_local_from_check = FALSE;
 323 BOOL    active_local_sender_retain = FALSE;
 324 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 325 uschar *add_environment        = NULL;
 326 address_item  *addr_duplicate  = NULL;
 327
 328 address_item address_defaults = {
 329   NULL,                 /* next */
 330   NULL,                 /* parent */
 331   NULL,                 /* first */
 332   NULL,                 /* dupof */
 333   NULL,                 /* start_router */
 334   NULL,                 /* router */
 335   NULL,                 /* transport */
 336   NULL,                 /* host_list */
 337   NULL,                 /* host_used */
 338   NULL,                 /* fallback_hosts */
 339   NULL,                 /* reply */
 340   NULL,                 /* retries */
 341   NULL,                 /* address */
 342   NULL,                 /* unique */
 343   NULL,                 /* cc_local_part */
 344   NULL,                 /* lc_local_part */
 345   NULL,                 /* local_part */
 346   NULL,                 /* prefix */
 347   NULL,                 /* suffix */
 348   NULL,                 /* domain */
 349   NULL,                 /* address_retry_key */
 350   NULL,                 /* domain_retry_key */
 351   NULL,                 /* current_dir */
 352   NULL,                 /* home_dir */
 353   NULL,                 /* message */
 354   NULL,                 /* user_message */
 355   NULL,                 /* onetime_parent */
 356   NULL,                 /* pipe_expandn */
 357   NULL,                 /* return_filename */
 358   NULL,                 /* self_hostname */
 359   NULL,                 /* shadow_message */
 360 #ifdef SUPPORT_TLS
 361   NULL,                 /* cipher */
 362   NULL,                 /* ourcert */
 363   NULL,                 /* peercert */
 364   NULL,                 /* peerdn */
 365   OCSP_NOT_REQ,         /* ocsp */
 366 #endif
 367 #ifdef EXPERIMENTAL_DSN_INFO
 368   NULL,                 /* smtp_greeting */
 369   NULL,                 /* helo_response */
 370 #endif
 371   NULL,                 /* authenticator */
 372   NULL,                 /* auth_id */
 373   NULL,                 /* auth_sndr */
 374   NULL,                 /* dsn_orcpt */
 375   0,                    /* dsn_flags */
 376   0,                    /* dsn_aware */
 377   (uid_t)(-1),          /* uid */
 378   (gid_t)(-1),          /* gid */
 379   0,                    /* flags */
 380   { 0 },                /* domain_cache - any larger array should be zeroed */
 381   { 0 },                /* localpart_cache - ditto */
 382   -1,                   /* mode */
 383   0,                    /* more_errno */
 384   ERRNO_UNKNOWNERROR,   /* basic_errno */
 385   0,                    /* child_count */
 386   -1,                   /* return_file */
 387   SPECIAL_NONE,         /* special_action */
 388   DEFER,                /* transport_return */
 389   {                     /* fields that are propagated to children */
 390     NULL,               /* address_data */
 391     NULL,               /* domain_data */
 392     NULL,               /* localpart_data */
 393     NULL,               /* errors_address */
 394     NULL,               /* extra_headers */
 395     NULL,               /* remove_headers */
 396 #ifdef EXPERIMENTAL_SRS
 397     NULL,               /* srs_sender */
 398 #endif
 399 #ifdef SUPPORT_I18N
 400     FALSE,              /* utf8 */
 401 #endif
 402   }
 403 };
 404
 405 uschar *address_file           = NULL;
 406 uschar *address_pipe           = NULL;
 407 BOOL    address_test_mode      = FALSE;
 408 tree_node *addresslist_anchor  = NULL;
 409 int     addresslist_count      = 0;
 410 gid_t  *admin_groups           = NULL;
 411 BOOL    admin_user             = FALSE;
 412 BOOL    allow_auth_unadvertised= FALSE;
 413 BOOL    allow_domain_literals  = FALSE;
 414 BOOL    allow_mx_to_ip         = FALSE;
 415 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 416 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 417 BOOL    allow_utf8_domains     = FALSE;
 418 uschar *authenticated_fail_id  = NULL;
 419 uschar *authenticated_id       = NULL;
 420 uschar *authenticated_sender   = NULL;
 421 BOOL    authentication_failed  = FALSE;
 422 auth_instance  *auths          = NULL;
 423 uschar *auth_advertise_hosts   = US"*";
 424 auth_instance auth_defaults    = {
 425     NULL,                      /* chain pointer */
 426     NULL,                      /* name */
 427     NULL,                      /* info */
 428     NULL,                      /* private options block pointer */
 429     NULL,                      /* driver_name */
 430     NULL,                      /* advertise_condition */
 431     NULL,                      /* client_condition */
 432     NULL,                      /* public_name */
 433     NULL,                      /* set_id */
 434     NULL,                      /* set_client_id */
 435     NULL,                      /* server_mail_auth_condition */
 436     NULL,                      /* server_debug_string */
 437     NULL,                      /* server_condition */
 438     FALSE,                     /* client */
 439     FALSE,                     /* server */
 440     FALSE                      /* advertised */
 441 };
 442
 443 uschar *auth_defer_msg         = US"reason not recorded";
 444 uschar *auth_defer_user_msg    = US"";
 445 uschar *auth_vars[AUTH_VARS];
 446 int     auto_thaw              = 0;
 447 #ifdef WITH_CONTENT_SCAN
 448 BOOL    av_failed              = FALSE;
 449 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 450 #endif
 451
 452 BOOL    background_daemon      = TRUE;
 453
 454 #if BASE_62 == 62
 455 uschar *base62_chars=
 456     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 457 #else
 458 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 459 #endif
 460
 461 uschar *bi_command             = NULL;
 462 uschar *big_buffer             = NULL;
 463 int     big_buffer_size        = BIG_BUFFER_SIZE;
 464 #ifdef EXPERIMENTAL_BRIGHTMAIL
 465 uschar *bmi_alt_location       = NULL;
 466 uschar *bmi_base64_tracker_verdict = NULL;
 467 uschar *bmi_base64_verdict     = NULL;
 468 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 469 int     bmi_deliver            = 1;
 470 int     bmi_run                = 0;
 471 uschar *bmi_verdicts           = NULL;
 472 #endif
 473 int     body_8bitmime          = 0;
 474 int     body_linecount         = 0;
 475 int     body_zerocount         = 0;
 476 uschar *bounce_message_file    = NULL;
 477 uschar *bounce_message_text    = NULL;
 478 uschar *bounce_recipient       = NULL;
 479 BOOL    bounce_return_body     = TRUE;
 480 int     bounce_return_linesize_limit = 998;
 481 BOOL    bounce_return_message  = TRUE;
 482 int     bounce_return_size_limit = 100*1024;
 483 uschar *bounce_sender_authentication = NULL;
 484 int     bsmtp_transaction_linecount = 0;
 485
 486 uschar *callout_address        = NULL;
 487 int     callout_cache_domain_positive_expire = 7*24*60*60;
 488 int     callout_cache_domain_negative_expire = 3*60*60;
 489 int     callout_cache_positive_expire = 24*60*60;
 490 int     callout_cache_negative_expire = 2*60*60;
 491 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 492 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 493 int     check_log_inodes       = 0;
 494 int     check_log_space        = 0;
 495 BOOL    check_rfc2047_length   = TRUE;
 496 int     check_spool_inodes     = 0;
 497 int     check_spool_space      = 0;
 498
 499 uschar *chunking_advertise_hosts = US"*";
 500 unsigned chunking_datasize     = 0;
 501 unsigned chunking_data_left    = 0;
 502 BOOL    chunking_offered       = FALSE;
 503 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 504 const pcre *regex_CHUNKING     = NULL;
 505
 506 uschar *client_authenticator   = NULL;
 507 uschar *client_authenticated_id = NULL;
 508 uschar *client_authenticated_sender = NULL;
 509 int     clmacro_count          = 0;
 510 uschar *clmacros[MAX_CLMACROS];
 511 BOOL    config_changed         = FALSE;
 512 FILE   *config_file            = NULL;
 513 uschar *config_filename        = NULL;
 514 int     config_lineno          = 0;
 515 #ifdef CONFIGURE_GROUP
 516 gid_t   config_gid             = CONFIGURE_GROUP;
 517 #endif
 518 uschar *config_main_filelist   = US CONFIGURE_FILE
 519                          "\0<-----------Space to patch configure_filename->";
 520 uschar *config_main_filename   = NULL;
 521 uschar *config_main_directory  = NULL;
 522
 523 #ifdef CONFIGURE_OWNER
 524 uid_t   config_uid             = CONFIGURE_OWNER;
 525 #endif
 526
 527 int     connection_max_messages= -1;
 528 uschar *continue_hostname      = NULL;
 529 uschar *continue_host_address  = NULL;
 530 BOOL    continue_more          = FALSE;
 531 int     continue_sequence      = 1;
 532 uschar *continue_transport     = NULL;
 533
 534 uschar *csa_status             = NULL;
 535 cut_t   cutthrough = {
 536   FALSE,                                /* delivery: when to attempt */
 537   -1,                                   /* fd: open connection */
 538   0,                                    /* nrcpt: number of addresses */
 539 };
 540
 541 BOOL    daemon_listen          = FALSE;
 542 uschar *daemon_smtp_port       = US"smtp";
 543 int     daemon_startup_retries = 9;
 544 int     daemon_startup_sleep   = 30;
 545
 546 #ifdef EXPERIMENTAL_DCC
 547 BOOL    dcc_direct_add_header  = FALSE;
 548 uschar *dcc_header             = NULL;
 549 uschar *dcc_result             = NULL;
 550 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 551 uschar *dccifd_options         = US"header";
 552 #endif
 553
 554 BOOL    debug_daemon           = FALSE;
 555 int     debug_fd               = -1;
 556 FILE   *debug_file             = NULL;
 557 int     debug_notall[]         = {
 558   Di_memory,
 559   -1
 560 };
 561 bit_table debug_options[]      = { /* must be in alphabetical order */
 562   BIT_TABLE(D, acl),
 563   BIT_TABLE(D, all),
 564   BIT_TABLE(D, auth),
 565   BIT_TABLE(D, deliver),
 566   BIT_TABLE(D, dns),
 567   BIT_TABLE(D, dnsbl),
 568   BIT_TABLE(D, exec),
 569   BIT_TABLE(D, expand),
 570   BIT_TABLE(D, filter),
 571   BIT_TABLE(D, hints_lookup),
 572   BIT_TABLE(D, host_lookup),
 573   BIT_TABLE(D, ident),
 574   BIT_TABLE(D, interface),
 575   BIT_TABLE(D, lists),
 576   BIT_TABLE(D, load),
 577   BIT_TABLE(D, local_scan),
 578   BIT_TABLE(D, lookup),
 579   BIT_TABLE(D, memory),
 580   BIT_TABLE(D, pid),
 581   BIT_TABLE(D, process_info),
 582   BIT_TABLE(D, queue_run),
 583   BIT_TABLE(D, receive),
 584   BIT_TABLE(D, resolver),
 585   BIT_TABLE(D, retry),
 586   BIT_TABLE(D, rewrite),
 587   BIT_TABLE(D, route),
 588   BIT_TABLE(D, timestamp),
 589   BIT_TABLE(D, tls),
 590   BIT_TABLE(D, transport),
 591   BIT_TABLE(D, uid),
 592   BIT_TABLE(D, verify),
 593 };
 594 int     debug_options_count    = nelem(debug_options);
 595
 596 unsigned int debug_selector    = 0;
 597 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 598 uschar *delay_warning_condition=
 599   US"${if or {"
 600             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 601             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 602             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 603             "} {no}{yes}}";
 604 BOOL    delivery_date_remove   = TRUE;
 605 uschar *deliver_address_data   = NULL;
 606 int     deliver_datafile       = -1;
 607 const uschar *deliver_domain   = NULL;
 608 uschar *deliver_domain_data    = NULL;
 609 const uschar *deliver_domain_orig = NULL;
 610 const uschar *deliver_domain_parent = NULL;
 611 BOOL    deliver_drop_privilege = FALSE;
 612 BOOL    deliver_firsttime      = FALSE;
 613 BOOL    deliver_force          = FALSE;
 614 BOOL    deliver_freeze         = FALSE;
 615 time_t  deliver_frozen_at      = 0;
 616 uschar *deliver_home           = NULL;
 617 const uschar *deliver_host     = NULL;
 618 const uschar *deliver_host_address = NULL;
 619 int     deliver_host_port      = 0;
 620 uschar *deliver_in_buffer      = NULL;
 621 ino_t   deliver_inode          = 0;
 622 uschar *deliver_localpart      = NULL;
 623 uschar *deliver_localpart_data = NULL;
 624 uschar *deliver_localpart_orig = NULL;
 625 uschar *deliver_localpart_parent = NULL;
 626 uschar *deliver_localpart_prefix = NULL;
 627 uschar *deliver_localpart_suffix = NULL;
 628 BOOL    deliver_force_thaw     = FALSE;
 629 BOOL    deliver_manual_thaw    = FALSE;
 630 uschar *deliver_out_buffer     = NULL;
 631 int     deliver_queue_load_max = -1;
 632 address_item  *deliver_recipients = NULL;
 633 uschar *deliver_selectstring   = NULL;
 634 BOOL    deliver_selectstring_regex = FALSE;
 635 uschar *deliver_selectstring_sender = NULL;
 636 BOOL    deliver_selectstring_sender_regex = FALSE;
 637 BOOL    disable_callout_flush  = FALSE;
 638 BOOL    disable_delay_flush    = FALSE;
 639 #ifdef ENABLE_DISABLE_FSYNC
 640 BOOL    disable_fsync          = FALSE;
 641 #endif
 642 BOOL    disable_ipv6           = FALSE;
 643 BOOL    disable_logging        = FALSE;
 644
 645 #ifndef DISABLE_DKIM
 646 BOOL    dkim_collect_input       = FALSE;
 647 uschar *dkim_cur_signer          = NULL;
 648 BOOL    dkim_disable_verify      = FALSE;
 649 int     dkim_key_length          = 0;
 650 uschar *dkim_signers             = NULL;
 651 uschar *dkim_signing_domain      = NULL;
 652 uschar *dkim_signing_selector    = NULL;
 653 uschar *dkim_verify_signers      = US"$dkim_signers";
 654 #endif
 655 #ifdef EXPERIMENTAL_DMARC
 656 BOOL    dmarc_has_been_checked  = FALSE;
 657 uschar *dmarc_ar_header         = NULL;
 658 uschar *dmarc_domain_policy     = NULL;
 659 uschar *dmarc_forensic_sender   = NULL;
 660 uschar *dmarc_history_file      = NULL;
 661 uschar *dmarc_status            = NULL;
 662 uschar *dmarc_status_text       = NULL;
 663 uschar *dmarc_tld_file          = NULL;
 664 uschar *dmarc_used_domain       = NULL;
 665 BOOL    dmarc_disable_verify    = FALSE;
 666 BOOL    dmarc_enable_forensic   = FALSE;
 667 #endif
 668
 669 uschar *dns_again_means_nonexist = NULL;
 670 int     dns_csa_search_limit   = 5;
 671 BOOL    dns_csa_use_reverse    = TRUE;
 672 #ifdef EXPERIMENTAL_DANE
 673 int     dns_dane_ok            = -1;
 674 #endif
 675 uschar *dns_ipv4_lookup        = NULL;
 676 int     dns_retrans            = 0;
 677 int     dns_retry              = 0;
 678 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 679 uschar *dns_trust_aa           = NULL;
 680 int     dns_use_edns0          = -1; /* <0 = not coerced */
 681 uschar *dnslist_domain         = NULL;
 682 uschar *dnslist_matched        = NULL;
 683 uschar *dnslist_text           = NULL;
 684 uschar *dnslist_value          = NULL;
 685 tree_node *domainlist_anchor   = NULL;
 686 int     domainlist_count       = 0;
 687 BOOL    dont_deliver           = FALSE;
 688 BOOL    dot_ends               = TRUE;
 689 BOOL    drop_cr                = FALSE;         /* No longer used */
 690 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 691
 692 BOOL    enable_dollar_recipients = FALSE;
 693 BOOL    envelope_to_remove     = TRUE;
 694 int     errno_quota            = ERRNO_QUOTA;
 695 uschar *errors_copy            = NULL;
 696 int     error_handling         = ERRORS_SENDER;
 697 uschar *errors_reply_to        = NULL;
 698 int     errors_sender_rc       = EXIT_FAILURE;
 699 #ifndef DISABLE_EVENT
 700 uschar *event_action             = NULL;        /* expansion for delivery events */
 701 uschar *event_data               = NULL;        /* auxilary data variable for event */
 702 int     event_defer_errno        = 0;
 703 const uschar *event_name         = NULL;        /* event name variable */
 704 #endif
 705
 706
 707 gid_t   exim_gid               = EXIM_GID;
 708 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 709 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 710                         "\0<---------------Space to patch exim_path->";
 711 uid_t   exim_uid               = EXIM_UID;
 712 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 713 int     expand_forbid          = 0;
 714 int     expand_nlength[EXPAND_MAXN+1];
 715 int     expand_nmax            = -1;
 716 uschar *expand_nstring[EXPAND_MAXN+1];
 717 BOOL    expand_string_forcedfail = FALSE;
 718 uschar *expand_string_message;
 719 BOOL    extract_addresses_remove_arguments = TRUE;
 720 uschar *extra_local_interfaces = NULL;
 721
 722 int     fake_response          = OK;
 723 uschar *fake_response_text     = US"Your message has been rejected but is "
 724                                    "being kept for evaluation.\nIf it was a "
 725                                    "legitimate message, it may still be "
 726                                    "delivered to the target recipient(s).";
 727 int     filter_n[FILTER_VARIABLE_COUNT];
 728 BOOL    filter_running         = FALSE;
 729 int     filter_sn[FILTER_VARIABLE_COUNT];
 730 int     filter_test            = FTEST_NONE;
 731 uschar *filter_test_sfile      = NULL;
 732 uschar *filter_test_ufile      = NULL;
 733 uschar *filter_thisaddress     = NULL;
 734 int     finduser_retries       = 0;
 735 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 736 uschar *freeze_tell            = NULL;
 737 uschar *freeze_tell_config     = NULL;
 738 uschar *fudged_queue_times     = US"";
 739
 740 uschar *gecos_name             = NULL;
 741 uschar *gecos_pattern          = NULL;
 742 rewrite_rule  *global_rewrite_rules = NULL;
 743
 744 uschar *headers_charset        = US HEADERS_CHARSET;
 745 int     header_insert_maxlen   = 64 * 1024;
 746 header_line  *header_last      = NULL;
 747 header_line  *header_list      = NULL;
 748 int     header_maxsize         = HEADER_MAXSIZE;
 749 int     header_line_maxsize    = 0;
 750
 751 header_name header_names[] = {
 752   { US"bcc",            3, TRUE,  htype_bcc },
 753   { US"cc",             2, TRUE,  htype_cc },
 754   { US"date",           4, TRUE,  htype_date },
 755   { US"delivery-date", 13, FALSE, htype_delivery_date },
 756   { US"envelope-to",   11, FALSE, htype_envelope_to },
 757   { US"from",           4, TRUE,  htype_from },
 758   { US"message-id",    10, TRUE,  htype_id },
 759   { US"received",       8, FALSE, htype_received },
 760   { US"reply-to",       8, FALSE, htype_reply_to },
 761   { US"return-path",   11, FALSE, htype_return_path },
 762   { US"sender",         6, TRUE,  htype_sender },
 763   { US"subject",        7, FALSE, htype_subject },
 764   { US"to",             2, TRUE,  htype_to }
 765 };
 766
 767 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 768
 769 BOOL    header_rewritten       = FALSE;
 770 uschar *helo_accept_junk_hosts = NULL;
 771 uschar *helo_allow_chars       = US"";
 772 uschar *helo_lookup_domains    = US"@ : @[]";
 773 uschar *helo_try_verify_hosts  = NULL;
 774 BOOL    helo_verified          = FALSE;
 775 BOOL    helo_verify_failed     = FALSE;
 776 uschar *helo_verify_hosts      = NULL;
 777 const uschar *hex_digits       = CUS"0123456789abcdef";
 778 uschar *hold_domains           = NULL;
 779 BOOL    host_checking          = FALSE;
 780 BOOL    host_checking_callout  = FALSE;
 781 uschar *host_data              = NULL;
 782 BOOL    host_find_failed_syntax= FALSE;
 783 uschar *host_lookup            = NULL;
 784 BOOL    host_lookup_deferred   = FALSE;
 785 BOOL    host_lookup_failed     = FALSE;
 786 uschar *host_lookup_order      = US"bydns:byaddr";
 787 uschar *host_lookup_msg        = US"";
 788 int     host_number            = 0;
 789 uschar *host_number_string     = NULL;
 790 uschar *host_reject_connection = NULL;
 791 tree_node *hostlist_anchor     = NULL;
 792 int     hostlist_count         = 0;
 793 uschar *hosts_treat_as_local   = NULL;
 794 uschar *hosts_connection_nolog = NULL;
 795
 796 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 797 BOOL    ignore_fromline_local  = FALSE;
 798 uschar *ignore_fromline_hosts  = NULL;
 799 BOOL    inetd_wait_mode        = FALSE;
 800 int     inetd_wait_timeout     = -1;
 801 uschar *initial_cwd            = NULL;
 802 uschar *interface_address      = NULL;
 803 int     interface_port         = -1;
 804 BOOL    is_inetd               = FALSE;
 805 uschar *iterate_item           = NULL;
 806
 807 int     journal_fd             = -1;
 808
 809 uschar *keep_environment       = NULL;
 810
 811 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 812
 813 uschar *eldap_dn               = NULL;
 814 int     load_average           = -2;
 815 BOOL    local_error_message    = FALSE;
 816 BOOL    local_from_check       = TRUE;
 817 uschar *local_from_prefix      = NULL;
 818 uschar *local_from_suffix      = NULL;
 819
 820 #if HAVE_IPV6
 821 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 822 #else
 823 uschar *local_interfaces       = US"0.0.0.0";
 824 #endif
 825
 826 uschar *local_scan_data        = NULL;
 827 int     local_scan_timeout     = 5*60;
 828 BOOL    local_sender_retain    = FALSE;
 829 gid_t   local_user_gid         = (gid_t)(-1);
 830 uid_t   local_user_uid         = (uid_t)(-1);
 831
 832 tree_node *localpartlist_anchor= NULL;
 833 int     localpartlist_count    = 0;
 834 uschar *log_buffer             = NULL;
 835
 836 int     log_default[]          = { /* for initializing log_selector */
 837   Li_acl_warn_skipped,
 838   Li_connection_reject,
 839   Li_delay_delivery,
 840   Li_dnslist_defer,
 841   Li_etrn,
 842   Li_host_lookup_failed,
 843   Li_lost_incoming_connection,
 844   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 845   Li_queue_run,
 846   Li_rejected_header,
 847   Li_retry_defer,
 848   Li_sender_verify_fail,
 849   Li_size_reject,
 850   Li_skip_delivery,
 851   Li_smtp_confirmation,
 852   Li_tls_certificate_verified,
 853   Li_tls_cipher,
 854   -1
 855 };
 856
 857 uschar *log_file_path          = US LOG_FILE_PATH
 858                            "\0<--------------Space to patch log_file_path->";
 859
 860 int     log_notall[]           = {
 861   -1
 862 };
 863 bit_table log_options[]        = { /* must be in alphabetical order */
 864   BIT_TABLE(L, 8bitmime),
 865   BIT_TABLE(L, acl_warn_skipped),
 866   BIT_TABLE(L, address_rewrite),
 867   BIT_TABLE(L, all),
 868   BIT_TABLE(L, all_parents),
 869   BIT_TABLE(L, arguments),
 870   BIT_TABLE(L, connection_reject),
 871   BIT_TABLE(L, delay_delivery),
 872   BIT_TABLE(L, deliver_time),
 873   BIT_TABLE(L, delivery_size),
 874   BIT_TABLE(L, dnslist_defer),
 875   BIT_TABLE(L, dnssec),
 876   BIT_TABLE(L, etrn),
 877   BIT_TABLE(L, host_lookup_failed),
 878   BIT_TABLE(L, ident_timeout),
 879   BIT_TABLE(L, incoming_interface),
 880   BIT_TABLE(L, incoming_port),
 881   BIT_TABLE(L, lost_incoming_connection),
 882   BIT_TABLE(L, outgoing_interface),
 883   BIT_TABLE(L, outgoing_port),
 884   BIT_TABLE(L, pid),
 885 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 886   BIT_TABLE(L, proxy),
 887 #endif
 888   BIT_TABLE(L, queue_run),
 889   BIT_TABLE(L, queue_time),
 890   BIT_TABLE(L, queue_time_overall),
 891   BIT_TABLE(L, received_recipients),
 892   BIT_TABLE(L, received_sender),
 893   BIT_TABLE(L, rejected_header),
 894   { US"rejected_headers", Li_rejected_header },
 895   BIT_TABLE(L, retry_defer),
 896   BIT_TABLE(L, return_path_on_delivery),
 897   BIT_TABLE(L, sender_on_delivery),
 898   BIT_TABLE(L, sender_verify_fail),
 899   BIT_TABLE(L, size_reject),
 900   BIT_TABLE(L, skip_delivery),
 901   BIT_TABLE(L, smtp_confirmation),
 902   BIT_TABLE(L, smtp_connection),
 903   BIT_TABLE(L, smtp_incomplete_transaction),
 904   BIT_TABLE(L, smtp_mailauth),
 905   BIT_TABLE(L, smtp_no_mail),
 906   BIT_TABLE(L, smtp_protocol_error),
 907   BIT_TABLE(L, smtp_syntax_error),
 908   BIT_TABLE(L, subject),
 909   BIT_TABLE(L, tls_certificate_verified),
 910   BIT_TABLE(L, tls_cipher),
 911   BIT_TABLE(L, tls_peerdn),
 912   BIT_TABLE(L, tls_sni),
 913   BIT_TABLE(L, unknown_in_list),
 914 };
 915 int     log_options_count      = nelem(log_options);
 916
 917 int     log_reject_target      = 0;
 918 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 919 uschar *log_selector_string    = NULL;
 920 FILE   *log_stderr             = NULL;
 921 BOOL    log_testing_mode       = FALSE;
 922 BOOL    log_timezone           = FALSE;
 923 uschar *login_sender_address   = NULL;
 924 uschar *lookup_dnssec_authenticated = NULL;
 925 int     lookup_open_max        = 25;
 926 uschar *lookup_value           = NULL;
 927
 928 macro_item  *macros            = NULL;
 929 uschar *mailstore_basename     = NULL;
 930 #ifdef WITH_CONTENT_SCAN
 931 uschar *malware_name           = NULL;  /* Virus Name */
 932 #endif
 933 int     max_received_linelength= 0;
 934 int     max_username_length    = 0;
 935 int     message_age            = 0;
 936 uschar *message_body           = NULL;
 937 uschar *message_body_end       = NULL;
 938 BOOL    message_body_newlines  = FALSE;
 939 int     message_body_size      = 0;
 940 int     message_body_visible   = 500;
 941 int     message_ended          = END_NOTSTARTED;
 942 uschar *message_headers        = NULL;
 943 uschar *message_id;
 944 uschar *message_id_domain      = NULL;
 945 uschar *message_id_text        = NULL;
 946 struct timeval message_id_tv   = { 0, 0 };
 947 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 948 uschar *message_id_external;
 949 int     message_linecount      = 0;
 950 BOOL    message_logs           = TRUE;
 951 int     message_size           = 0;
 952 uschar *message_size_limit     = US"50M";
 953 #ifdef SUPPORT_I18N
 954 BOOL    message_smtputf8       = FALSE;
 955 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 956 #endif
 957 uschar  message_subdir[2]      = { 0, 0 };
 958 uschar *message_reference      = NULL;
 959
 960 /* MIME ACL expandables */
 961 #ifdef WITH_CONTENT_SCAN
 962 int     mime_anomaly_level     = 0;
 963 const uschar *mime_anomaly_text      = NULL;
 964 uschar *mime_boundary          = NULL;
 965 uschar *mime_charset           = NULL;
 966 uschar *mime_content_description = NULL;
 967 uschar *mime_content_disposition = NULL;
 968 uschar *mime_content_id        = NULL;
 969 unsigned int mime_content_size = 0;
 970 uschar *mime_content_transfer_encoding = NULL;
 971 uschar *mime_content_type      = NULL;
 972 uschar *mime_decoded_filename  = NULL;
 973 uschar *mime_filename          = NULL;
 974 int     mime_is_multipart      = 0;
 975 int     mime_is_coverletter    = 0;
 976 int     mime_is_rfc822         = 0;
 977 int     mime_part_count        = -1;
 978 #endif
 979
 980 BOOL    mua_wrapper            = FALSE;
 981
 982 uid_t  *never_users            = NULL;
 983 #ifdef WITH_CONTENT_SCAN
 984 BOOL    no_mbox_unspool        = FALSE;
 985 #endif
 986 BOOL    no_multiline_responses = FALSE;
 987
 988 uid_t   original_euid;
 989 gid_t   originator_gid;
 990 uschar *originator_login       = NULL;
 991 uschar *originator_name        = NULL;
 992 uid_t   originator_uid;
 993 uschar *override_local_interfaces = NULL;
 994 uschar *override_pid_file_path = NULL;
 995
 996 BOOL    parse_allow_group      = FALSE;
 997 BOOL    parse_found_group      = FALSE;
 998 uschar *percent_hack_domains   = NULL;
 999 uschar *pid_file_path          = US PID_FILE_PATH
1000                            "\0<--------------Space to patch pid_file_path->";
1001 BOOL    pipelining_enable      = TRUE;
1002 uschar *pipelining_advertise_hosts = US"*";
1003 BOOL    preserve_message_logs  = FALSE;
1004 uschar *primary_hostname       = NULL;
1005 BOOL    print_topbitchars      = FALSE;
1006 uschar  process_info[PROCESS_INFO_SIZE];
1007 int     process_info_len       = 0;
1008 uschar *process_log_path       = NULL;
1009 BOOL    prod_requires_admin    = TRUE;
1010
1011 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1012 uschar *hosts_proxy            = US"";
1013 uschar *proxy_external_address = US"";
1014 int     proxy_external_port    = 0;
1015 uschar *proxy_local_address    = US"";
1016 int     proxy_local_port       = 0;
1017 BOOL    proxy_session          = FALSE;
1018 BOOL    proxy_session_failed   = FALSE;
1019 #endif
1020
1021 uschar *prvscheck_address      = NULL;
1022 uschar *prvscheck_keynum       = NULL;
1023 uschar *prvscheck_result       = NULL;
1024
1025
1026 const uschar *qualify_domain_recipient = NULL;
1027 uschar *qualify_domain_sender  = NULL;
1028 BOOL    queue_2stage           = FALSE;
1029 uschar *queue_domains          = NULL;
1030 int     queue_interval         = -1;
1031 BOOL    queue_list_requires_admin = TRUE;
1032 uschar *queue_name             = US"";
1033 BOOL    queue_only             = FALSE;
1034 uschar *queue_only_file        = NULL;
1035 int     queue_only_load        = -1;
1036 BOOL    queue_only_load_latch  = TRUE;
1037 BOOL    queue_only_override    = TRUE;
1038 BOOL    queue_only_policy      = FALSE;
1039 BOOL    queue_run_first_delivery = FALSE;
1040 BOOL    queue_run_force        = FALSE;
1041 BOOL    queue_run_in_order     = FALSE;
1042 BOOL    queue_run_local        = FALSE;
1043 uschar *queue_run_max          = US"5";
1044 pid_t   queue_run_pid          = (pid_t)0;
1045 int     queue_run_pipe         = -1;
1046 BOOL    queue_running          = FALSE;
1047 BOOL    queue_smtp             = FALSE;
1048 uschar *queue_smtp_domains     = NULL;
1049
1050 unsigned int random_seed       = 0;
1051 tree_node *ratelimiters_cmd    = NULL;
1052 tree_node *ratelimiters_conn   = NULL;
1053 tree_node *ratelimiters_mail   = NULL;
1054 uschar *raw_active_hostname    = NULL;
1055 uschar *raw_sender             = NULL;
1056 uschar **raw_recipients        = NULL;
1057 int     raw_recipients_count   = 0;
1058
1059 int     rcpt_count             = 0;
1060 int     rcpt_fail_count        = 0;
1061 int     rcpt_defer_count       = 0;
1062 gid_t   real_gid;
1063 uid_t   real_uid;
1064 BOOL    really_exim            = TRUE;
1065 BOOL    receive_call_bombout   = FALSE;
1066 int     receive_linecount      = 0;
1067 int     receive_messagecount   = 0;
1068 int     receive_timeout        = 0;
1069 int     received_count         = 0;
1070 uschar *received_for           = NULL;
1071
1072 /*  This is the default text for Received headers generated by Exim. The
1073 date  will be automatically added on the end. */
1074
1075 uschar *received_header_text   = US
1076      "Received: "
1077      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1078      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1079      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1080      "by $primary_hostname "
1081      "${if def:received_protocol {with $received_protocol}} "
1082      #ifdef SUPPORT_TLS
1083      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1084      #endif
1085      "(Exim $version_number)\n\t"
1086      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1087      "id $message_exim_id"
1088      "${if def:received_for {\n\tfor $received_for}}"
1089      "\0<---------------Space to patch received_header_text->";
1090
1091 int     received_headers_max   = 30;
1092 uschar *received_protocol      = NULL;
1093 int     received_time          = 0;
1094 uschar *recipient_data         = NULL;
1095 uschar *recipient_unqualified_hosts = NULL;
1096 uschar *recipient_verify_failure = NULL;
1097 int     recipients_count       = 0;
1098 BOOL    recipients_discarded   = FALSE;
1099 recipient_item  *recipients_list = NULL;
1100 int     recipients_list_max    = 0;
1101 int     recipients_max         = 0;
1102 BOOL    recipients_max_reject  = FALSE;
1103 const pcre *regex_AUTH         = NULL;
1104 const pcre *regex_check_dns_names = NULL;
1105 const pcre *regex_From         = NULL;
1106 const pcre *regex_IGNOREQUOTA  = NULL;
1107 const pcre *regex_PIPELINING   = NULL;
1108 const pcre *regex_SIZE         = NULL;
1109 const pcre *regex_ismsgid      = NULL;
1110 const pcre *regex_smtp_code    = NULL;
1111 uschar *regex_vars[REGEX_VARS];
1112 #ifdef WHITELIST_D_MACROS
1113 const pcre *regex_whitelisted_macro = NULL;
1114 #endif
1115 #ifdef WITH_CONTENT_SCAN
1116 uschar *regex_match_string     = NULL;
1117 #endif
1118 int     remote_delivery_count  = 0;
1119 int     remote_max_parallel    = 2;
1120 uschar *remote_sort_domains    = NULL;
1121 int     retry_data_expire      = 7*24*60*60;
1122 int     retry_interval_max     = 24*60*60;
1123 int     retry_maximum_timeout  = 0;        /* set from retry config */
1124 retry_config  *retries         = NULL;
1125 uschar *return_path            = NULL;
1126 BOOL    return_path_remove     = TRUE;
1127 int     rewrite_existflags     = 0;
1128 uschar *rfc1413_hosts          = US"@[]";
1129 int     rfc1413_query_timeout  = 0;
1130 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1131 uid_t   root_gid               = ROOT_GID;
1132 uid_t   root_uid               = ROOT_UID;
1133
1134 router_instance  *routers  = NULL;
1135 router_instance  router_defaults = {
1136     NULL,                      /* chain pointer */
1137     NULL,                      /* name */
1138     NULL,                      /* info */
1139     NULL,                      /* private options block pointer */
1140     NULL,                      /* driver name */
1141
1142     NULL,                      /* address_data */
1143 #ifdef EXPERIMENTAL_BRIGHTMAIL
1144     NULL,                      /* bmi_rule */
1145 #endif
1146     NULL,                      /* cannot_route_message */
1147     NULL,                      /* condition */
1148     NULL,                      /* current_directory */
1149     NULL,                      /* debug_string */
1150     NULL,                      /* domains */
1151     NULL,                      /* errors_to */
1152     NULL,                      /* expand_gid */
1153     NULL,                      /* expand_uid */
1154     NULL,                      /* expand_more */
1155     NULL,                      /* expand_unseen */
1156     NULL,                      /* extra_headers */
1157     NULL,                      /* fallback_hosts */
1158     NULL,                      /* home_directory */
1159     NULL,                      /* ignore_target_hosts */
1160     NULL,                      /* local_parts */
1161     NULL,                      /* pass_router_name */
1162     NULL,                      /* prefix */
1163     NULL,                      /* redirect_router_name */
1164     NULL,                      /* remove_headers */
1165     NULL,                      /* require_files */
1166     NULL,                      /* router_home_directory */
1167     US"freeze",                /* self */
1168     NULL,                      /* senders */
1169     NULL,                      /* suffix */
1170     NULL,                      /* translate_ip_address */
1171     NULL,                      /* transport_name */
1172
1173     TRUE,                      /* address_test */
1174 #ifdef EXPERIMENTAL_BRIGHTMAIL
1175     FALSE,                     /* bmi_deliver_alternate */
1176     FALSE,                     /* bmi_deliver_default */
1177     FALSE,                     /* bmi_dont_deliver */
1178 #endif
1179     TRUE,                      /* expn */
1180     FALSE,                     /* caseful_local_part */
1181     FALSE,                     /* check_local_user */
1182     FALSE,                     /* disable_logging */
1183     FALSE,                     /* fail_verify_recipient */
1184     FALSE,                     /* fail_verify_sender */
1185     FALSE,                     /* gid_set */
1186     FALSE,                     /* initgroups */
1187     TRUE_UNSET,                /* log_as_local */
1188     TRUE,                      /* more */
1189     FALSE,                     /* pass_on_timeout */
1190     FALSE,                     /* prefix_optional */
1191     TRUE,                      /* repeat_use */
1192     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1193     FALSE,                     /* same_domain_copy_routing */
1194     FALSE,                     /* self_rewrite */
1195     FALSE,                     /* suffix_optional */
1196     FALSE,                     /* verify_only */
1197     TRUE,                      /* verify_recipient */
1198     TRUE,                      /* verify_sender */
1199     FALSE,                     /* uid_set */
1200     FALSE,                     /* unseen */
1201     FALSE,                     /* dsn_lasthop */
1202
1203     self_freeze,               /* self_code */
1204     (uid_t)(-1),               /* uid */
1205     (gid_t)(-1),               /* gid */
1206
1207     NULL,                      /* fallback_hostlist */
1208     NULL,                      /* transport instance */
1209     NULL,                      /* pass_router */
1210     NULL,                      /* redirect_router */
1211
1212     { NULL, NULL },            /* dnssec_domains {require,request} */
1213 };
1214
1215 uschar *router_name            = NULL;
1216
1217 ip_address_item *running_interfaces = NULL;
1218 BOOL    running_in_test_harness = FALSE;
1219
1220 /* This is a weird one. The following string gets patched in the binary by the
1221 script that sets up a copy of Exim for running in the test harness. It seems
1222 that compilers are now clever, and share constant strings if they can.
1223 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1224 make use of the end of this string in order to save space. So the patching then
1225 wrecks this. We defeat this optimization by adding some additional characters
1226 onto the end of the string. */
1227
1228 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1229
1230 int     runrc                  = 0;
1231
1232 uschar *search_error_message   = NULL;
1233 BOOL    search_find_defer      = FALSE;
1234 uschar *self_hostname          = NULL;
1235 uschar *sender_address         = NULL;
1236 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1237 uschar *sender_address_data    = NULL;
1238 BOOL    sender_address_forced  = FALSE;
1239 uschar *sender_address_unrewritten = NULL;
1240 uschar *sender_data            = NULL;
1241 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1242 uschar *sender_fullhost        = NULL;
1243 BOOL    sender_helo_dnssec     = FALSE;
1244 uschar *sender_helo_name       = NULL;
1245 uschar **sender_host_aliases   = &no_aliases;
1246 uschar *sender_host_address    = NULL;
1247 uschar *sender_host_authenticated = NULL;
1248 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1249 BOOL    sender_host_dnssec     = FALSE;
1250 uschar *sender_host_name       = NULL;
1251 int     sender_host_port       = 0;
1252 BOOL    sender_host_notsocket  = FALSE;
1253 BOOL    sender_host_unknown    = FALSE;
1254 uschar *sender_ident           = NULL;
1255 BOOL    sender_local           = FALSE;
1256 BOOL    sender_name_forced     = FALSE;
1257 uschar *sender_rate            = NULL;
1258 uschar *sender_rate_limit      = NULL;
1259 uschar *sender_rate_period     = NULL;
1260 uschar *sender_rcvhost         = NULL;
1261 BOOL    sender_set_untrusted   = FALSE;
1262 uschar *sender_unqualified_hosts = NULL;
1263 uschar *sender_verify_failure = NULL;
1264 address_item *sender_verified_list  = NULL;
1265 address_item *sender_verified_failed = NULL;
1266 int     sender_verified_rc     = -1;
1267 BOOL    sender_verified_responded = FALSE;
1268 uschar *sending_ip_address     = NULL;
1269 int     sending_port           = -1;
1270 SIGNAL_BOOL sigalrm_seen       = FALSE;
1271 uschar **sighup_argv           = NULL;
1272 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1273 int     smtp_accept_count      = 0;
1274 BOOL    smtp_accept_keepalive  = TRUE;
1275 int     smtp_accept_max        = 20;
1276 int     smtp_accept_max_nonmail= 10;
1277 uschar *smtp_accept_max_nonmail_hosts = US"*";
1278 int     smtp_accept_max_per_connection = 1000;
1279 uschar *smtp_accept_max_per_host = NULL;
1280 int     smtp_accept_queue      = 0;
1281 int     smtp_accept_queue_per_connection = 10;
1282 int     smtp_accept_reserve    = 0;
1283 uschar *smtp_active_hostname   = NULL;
1284 BOOL    smtp_authenticated     = FALSE;
1285 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1286                              "Exim $version_number $tod_full"
1287                              "\0<---------------Space to patch smtp_banner->";
1288 BOOL    smtp_batched_input     = FALSE;
1289 BOOL    smtp_check_spool_space = TRUE;
1290 int     smtp_ch_index          = 0;
1291 uschar *smtp_cmd_argument      = NULL;
1292 uschar *smtp_cmd_buffer        = NULL;
1293 time_t  smtp_connection_start  = 0;
1294 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1295 int     smtp_connect_backlog   = 20;
1296 double  smtp_delay_mail        = 0.0;
1297 double  smtp_delay_rcpt        = 0.0;
1298 BOOL    smtp_enforce_sync      = TRUE;
1299 FILE   *smtp_in                = NULL;
1300 BOOL    smtp_input             = FALSE;
1301 int     smtp_load_reserve      = -1;
1302 int     smtp_mailcmd_count     = 0;
1303 FILE   *smtp_out               = NULL;
1304 uschar *smtp_etrn_command      = NULL;
1305 BOOL    smtp_etrn_serialize    = TRUE;
1306 int     smtp_max_synprot_errors= 3;
1307 int     smtp_max_unknown_commands = 3;
1308 uschar *smtp_notquit_reason    = NULL;
1309 uschar *smtp_ratelimit_hosts   = NULL;
1310 uschar *smtp_ratelimit_mail    = NULL;
1311 uschar *smtp_ratelimit_rcpt    = NULL;
1312 uschar *smtp_read_error        = US"";
1313 int     smtp_receive_timeout   = 5*60;
1314 uschar *smtp_receive_timeout_s = NULL;
1315 uschar *smtp_reserve_hosts     = NULL;
1316 BOOL    smtp_return_error_details = FALSE;
1317 int     smtp_rlm_base          = 0;
1318 double  smtp_rlm_factor        = 0.0;
1319 int     smtp_rlm_limit         = 0;
1320 int     smtp_rlm_threshold     = INT_MAX;
1321 int     smtp_rlr_base          = 0;
1322 double  smtp_rlr_factor        = 0.0;
1323 int     smtp_rlr_limit         = 0;
1324 int     smtp_rlr_threshold     = INT_MAX;
1325 BOOL    smtp_use_pipelining    = FALSE;
1326 BOOL    smtp_use_size          = FALSE;
1327 #ifdef SUPPORT_I18N
1328 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1329 #endif
1330
1331 #ifdef WITH_CONTENT_SCAN
1332 uschar *spamd_address          = US"127.0.0.1 783";
1333 uschar *spam_bar               = NULL;
1334 uschar *spam_report            = NULL;
1335 uschar *spam_action            = NULL;
1336 uschar *spam_score             = NULL;
1337 uschar *spam_score_int         = NULL;
1338 #endif
1339 #ifdef EXPERIMENTAL_SPF
1340 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1341 uschar *spf_header_comment     = NULL;
1342 uschar *spf_received           = NULL;
1343 uschar *spf_result             = NULL;
1344 uschar *spf_smtp_comment       = NULL;
1345 #endif
1346
1347 BOOL    split_spool_directory  = FALSE;
1348 uschar *spool_directory        = US SPOOL_DIRECTORY
1349                            "\0<--------------Space to patch spool_directory->";
1350 #ifdef EXPERIMENTAL_SRS
1351 uschar *srs_config             = NULL;
1352 uschar *srs_db_address         = NULL;
1353 uschar *srs_db_key             = NULL;
1354 int     srs_hashlength         = 6;
1355 int     srs_hashmin            = -1;
1356 int     srs_maxage             = 31;
1357 uschar *srs_orig_recipient     = NULL;
1358 uschar *srs_orig_sender        = NULL;
1359 uschar *srs_recipient          = NULL;
1360 uschar *srs_secrets            = NULL;
1361 uschar *srs_status             = NULL;
1362 BOOL    srs_usehash            = TRUE;
1363 BOOL    srs_usetimestamp       = TRUE;
1364 #endif
1365 BOOL    strict_acl_vars        = FALSE;
1366 int     string_datestamp_offset= -1;
1367 int     string_datestamp_length= 0;
1368 int     string_datestamp_type  = -1;
1369 BOOL    strip_excess_angle_brackets = FALSE;
1370 BOOL    strip_trailing_dot     = FALSE;
1371 uschar *submission_domain      = NULL;
1372 BOOL    submission_mode        = FALSE;
1373 uschar *submission_name        = NULL;
1374 BOOL    suppress_local_fixups  = FALSE;
1375 BOOL    suppress_local_fixups_default = FALSE;
1376 BOOL    synchronous_delivery   = FALSE;
1377 BOOL    syslog_duplication     = TRUE;
1378 int     syslog_facility        = LOG_MAIL;
1379 uschar *syslog_processname     = US"exim";
1380 BOOL    syslog_timestamp       = TRUE;
1381 uschar *system_filter          = NULL;
1382
1383 uschar *system_filter_directory_transport = NULL;
1384 uschar *system_filter_file_transport = NULL;
1385 uschar *system_filter_pipe_transport = NULL;
1386 uschar *system_filter_reply_transport = NULL;
1387
1388 gid_t   system_filter_gid      = 0;
1389 BOOL    system_filter_gid_set  = FALSE;
1390 uid_t   system_filter_uid      = (uid_t)-1;
1391 BOOL    system_filter_uid_set  = FALSE;
1392 BOOL    system_filtering       = FALSE;
1393
1394 BOOL    tcp_nodelay            = TRUE;
1395 #ifdef USE_TCP_WRAPPERS
1396 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1397 #endif
1398 int     test_harness_load_avg  = 0;
1399 int     thismessage_size_limit = 0;
1400 int     timeout_frozen_after   = 0;
1401 BOOL    timestamps_utc         = FALSE;
1402
1403 transport_instance  *transports = NULL;
1404
1405 transport_instance  transport_defaults = {
1406     NULL,                     /* chain pointer */
1407     NULL,                     /* name */
1408     NULL,                     /* info */
1409     NULL,                     /* private options block pointer */
1410     NULL,                     /* driver name */
1411     NULL,                     /* setup entry point */
1412     1,                        /* batch_max */
1413     NULL,                     /* batch_id */
1414     NULL,                     /* home_dir */
1415     NULL,                     /* current_dir */
1416     NULL,                     /* expand-multi-domain */
1417     TRUE,                     /* multi-domain */
1418     FALSE,                    /* overrides_hosts */
1419     100,                      /* max_addresses */
1420     500,                      /* connection_max_messages */
1421     FALSE,                    /* deliver_as_creator */
1422     FALSE,                    /* disable_logging */
1423     FALSE,                    /* initgroups */
1424     FALSE,                    /* uid_set */
1425     FALSE,                    /* gid_set */
1426     (uid_t)(-1),              /* uid */
1427     (gid_t)(-1),              /* gid */
1428     NULL,                     /* expand_uid */
1429     NULL,                     /* expand_gid */
1430     NULL,                     /* warn_message */
1431     NULL,                     /* shadow */
1432     NULL,                     /* shadow_condition */
1433     NULL,                     /* filter_command */
1434     NULL,                     /* add_headers */
1435     NULL,                     /* remove_headers */
1436     NULL,                     /* return_path */
1437     NULL,                     /* debug_string */
1438     NULL,                     /* max_parallel */
1439     NULL,                     /* message_size_limit */
1440     NULL,                     /* headers_rewrite */
1441     NULL,                     /* rewrite_rules */
1442     0,                        /* rewrite_existflags */
1443     300,                      /* filter_timeout */
1444     FALSE,                    /* body_only */
1445     FALSE,                    /* delivery_date_add */
1446     FALSE,                    /* envelope_to_add */
1447     FALSE,                    /* headers_only */
1448     FALSE,                    /* rcpt_include_affixes */
1449     FALSE,                    /* return_path_add */
1450     FALSE,                    /* return_output */
1451     FALSE,                    /* return_fail_output */
1452     FALSE,                    /* log_output */
1453     FALSE,                    /* log_fail_output */
1454     FALSE,                    /* log_defer_output */
1455     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1456                                  1 nor 0 so can detect unset */
1457 #ifndef DISABLE_EVENT
1458    ,NULL                      /* event_action */
1459 #endif
1460 };
1461
1462 int     transport_count;
1463 uschar *transport_name          = NULL;
1464 int     transport_newlines;
1465 const uschar **transport_filter_argv  = NULL;
1466 int     transport_filter_timeout;
1467 BOOL    transport_filter_timed_out = FALSE;
1468 int     transport_write_timeout= 0;
1469
1470 tree_node  *tree_dns_fails     = NULL;
1471 tree_node  *tree_duplicates    = NULL;
1472 tree_node  *tree_nonrecipients = NULL;
1473 tree_node  *tree_unusable      = NULL;
1474
1475 BOOL    trusted_caller         = FALSE;
1476 BOOL    trusted_config         = TRUE;
1477 gid_t  *trusted_groups         = NULL;
1478 uid_t  *trusted_users          = NULL;
1479 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1480
1481 uschar *unknown_login          = NULL;
1482 uschar *unknown_username       = NULL;
1483 uschar *untrusted_set_sender   = NULL;
1484
1485 /*  A regex for matching a "From_" line in an incoming message, in the form
1486
1487     From ph10 Fri Jan  5 12:35 GMT 1996
1488
1489 which  the "mail" commands send to the MTA (undocumented, of course), or in
1490 the  form
1491
1492     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1493
1494 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1495 Because  of variations in time formats, just match up to the minutes. That
1496 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1497 so  just require one digit for hours and minutes. The weekday is also absent
1498 in  some forms. */
1499
1500 uschar *uucp_from_pattern      = US
1501    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1502    "(?:"                                          /* Non-extracting bracket */
1503    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1504    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1505    ")"                                            /* End alternation */
1506    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1507
1508 uschar *uucp_from_sender       = US"$1";
1509
1510 uschar *verify_mode            = NULL;
1511 uschar *version_copyright      =
1512  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1513    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1514 uschar *version_date           = US"?";
1515 uschar *version_cnumber        = US"????";
1516 uschar *version_string         = US"?";
1517
1518 uschar *warn_message_file      = NULL;
1519 int     warning_count          = 0;
1520 uschar *warnmsg_delay          = NULL;
1521 uschar *warnmsg_recipients     = NULL;
1522 BOOL    write_rejectlog        = TRUE;
1523
1524
1525 /*  End of globals.c */