src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2017 */
   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 = nelem(optionlist_auths);
  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 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *openssl_options        = NULL;
 147 const pcre *regex_STARTTLS     = NULL;
 148 uschar *tls_advertise_hosts    = US"*";
 149 uschar *tls_certificate        = NULL;
 150 uschar *tls_crl                = NULL;
 151 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 152 that's the interop problem which has been observed: GnuTLS suggesting a higher
 153 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 154 int     tls_dh_max_bits        = 2236;
 155 uschar *tls_dhparam            = NULL;
 156 uschar *tls_eccurve            = US"auto";
 157 # ifndef DISABLE_OCSP
 158 uschar *tls_ocsp_file          = NULL;
 159 # endif
 160 uschar *tls_privatekey         = NULL;
 161 BOOL    tls_remember_esmtp     = FALSE;
 162 uschar *tls_require_ciphers    = NULL;
 163 uschar *tls_try_verify_hosts   = NULL;
 164 uschar *tls_verify_certificates= US"system";
 165 uschar *tls_verify_hosts       = NULL;
 166 #else   /*!SUPPORT_TLS*/
 167 uschar *tls_advertise_hosts    = NULL;
 168 #endif
 169
 170 #ifndef DISABLE_PRDR
 171 /* Per Recipient Data Response variables */
 172 BOOL    prdr_enable            = FALSE;
 173 BOOL    prdr_requested         = FALSE;
 174 const pcre *regex_PRDR         = NULL;
 175 #endif
 176
 177 #ifdef SUPPORT_I18N
 178 const pcre *regex_UTF8         = NULL;
 179 #endif
 180
 181 /* Input-reading functions for messages, so we can use special ones for
 182 incoming TCP/IP. The defaults use stdin. We never need these for any
 183 stand-alone tests. */
 184
 185 #ifndef STAND_ALONE
 186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 187 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 188 int (*receive_getc)(unsigned)  = stdin_getc;
 189 void (*receive_get_cache)(void)= NULL;
 190 int (*receive_ungetc)(int)     = stdin_ungetc;
 191 int (*receive_feof)(void)      = stdin_feof;
 192 int (*receive_ferror)(void)    = stdin_ferror;
 193 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 194 #endif
 195
 196
 197 /* List of per-address expansion variables for clearing and saving/restoring
 198 when verifying one address while routing/verifying another. We have to have
 199 the size explicit, because it is referenced from more than one module. */
 200
 201 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 202   CUSS &deliver_address_data,
 203   CUSS &deliver_domain,
 204   CUSS &deliver_domain_data,
 205   CUSS &deliver_domain_orig,
 206   CUSS &deliver_domain_parent,
 207   CUSS &deliver_localpart,
 208   CUSS &deliver_localpart_data,
 209   CUSS &deliver_localpart_orig,
 210   CUSS &deliver_localpart_parent,
 211   CUSS &deliver_localpart_prefix,
 212   CUSS &deliver_localpart_suffix,
 213   CUSS (uschar **)(&deliver_recipients),
 214   CUSS &deliver_host,
 215   CUSS &deliver_home,
 216   CUSS &address_file,
 217   CUSS &address_pipe,
 218   CUSS &self_hostname,
 219   NULL };
 220
 221 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 222
 223 /* General global variables */
 224
 225 header_line *acl_added_headers = NULL;
 226 tree_node *acl_anchor          = NULL;
 227 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 228                                   NULL, NULL, NULL, NULL};
 229 int     acl_narg               = 0;
 230
 231 int     acl_level              = 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       = 100;
 494 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 495 BOOL    check_rfc2047_length   = TRUE;
 496 int     check_spool_inodes     = 100;
 497 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 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 const uschar *config_filename  = NULL;
 514 int     config_lineno          = 0;
 515 #ifdef CONFIGURE_GROUP
 516 gid_t   config_gid             = CONFIGURE_GROUP;
 517 #else
 518 gid_t   config_gid             = 0;
 519 #endif
 520 uschar *config_main_filelist   = US CONFIGURE_FILE
 521                          "\0<-----------Space to patch configure_filename->";
 522 uschar *config_main_filename   = NULL;
 523 uschar *config_main_directory  = NULL;
 524
 525 #ifdef CONFIGURE_OWNER
 526 uid_t   config_uid             = CONFIGURE_OWNER;
 527 #else
 528 uid_t   config_uid             = 0;
 529 #endif
 530
 531 int     connection_max_messages= -1;
 532 uschar *continue_hostname      = NULL;
 533 uschar *continue_host_address  = NULL;
 534 BOOL    continue_more          = FALSE;
 535 int     continue_sequence      = 1;
 536 uschar *continue_transport     = NULL;
 537
 538 uschar *csa_status             = NULL;
 539 cut_t   cutthrough = {
 540   FALSE,                                /* delivery: when to attempt */
 541   FALSE,                                /* on defer: spool locally */
 542   -1,                                   /* fd: open connection */
 543   0,                                    /* nrcpt: number of addresses */
 544 };
 545
 546 BOOL    daemon_listen          = FALSE;
 547 uschar *daemon_smtp_port       = US"smtp";
 548 int     daemon_startup_retries = 9;
 549 int     daemon_startup_sleep   = 30;
 550
 551 #ifdef EXPERIMENTAL_DCC
 552 BOOL    dcc_direct_add_header  = FALSE;
 553 uschar *dcc_header             = NULL;
 554 uschar *dcc_result             = NULL;
 555 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 556 uschar *dccifd_options         = US"header";
 557 #endif
 558
 559 BOOL    debug_daemon           = FALSE;
 560 int     debug_fd               = -1;
 561 FILE   *debug_file             = NULL;
 562 int     debug_notall[]         = {
 563   Di_memory,
 564   -1
 565 };
 566 bit_table debug_options[]      = { /* must be in alphabetical order */
 567   BIT_TABLE(D, acl),
 568   BIT_TABLE(D, all),
 569   BIT_TABLE(D, auth),
 570   BIT_TABLE(D, deliver),
 571   BIT_TABLE(D, dns),
 572   BIT_TABLE(D, dnsbl),
 573   BIT_TABLE(D, exec),
 574   BIT_TABLE(D, expand),
 575   BIT_TABLE(D, filter),
 576   BIT_TABLE(D, hints_lookup),
 577   BIT_TABLE(D, host_lookup),
 578   BIT_TABLE(D, ident),
 579   BIT_TABLE(D, interface),
 580   BIT_TABLE(D, lists),
 581   BIT_TABLE(D, load),
 582   BIT_TABLE(D, local_scan),
 583   BIT_TABLE(D, lookup),
 584   BIT_TABLE(D, memory),
 585   BIT_TABLE(D, pid),
 586   BIT_TABLE(D, process_info),
 587   BIT_TABLE(D, queue_run),
 588   BIT_TABLE(D, receive),
 589   BIT_TABLE(D, resolver),
 590   BIT_TABLE(D, retry),
 591   BIT_TABLE(D, rewrite),
 592   BIT_TABLE(D, route),
 593   BIT_TABLE(D, timestamp),
 594   BIT_TABLE(D, tls),
 595   BIT_TABLE(D, transport),
 596   BIT_TABLE(D, uid),
 597   BIT_TABLE(D, verify),
 598 };
 599 int     debug_options_count    = nelem(debug_options);
 600
 601 unsigned int debug_selector    = 0;
 602 BOOL    debug_store            = FALSE;
 603 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 604 uschar *delay_warning_condition=
 605   US"${if or {"
 606             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 607             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 608             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 609             "} {no}{yes}}";
 610 BOOL    delivery_date_remove   = TRUE;
 611 uschar *deliver_address_data   = NULL;
 612 int     deliver_datafile       = -1;
 613 const uschar *deliver_domain   = NULL;
 614 uschar *deliver_domain_data    = NULL;
 615 const uschar *deliver_domain_orig = NULL;
 616 const uschar *deliver_domain_parent = NULL;
 617 BOOL    deliver_drop_privilege = FALSE;
 618 BOOL    deliver_firsttime      = FALSE;
 619 BOOL    deliver_force          = FALSE;
 620 BOOL    deliver_freeze         = FALSE;
 621 time_t  deliver_frozen_at      = 0;
 622 uschar *deliver_home           = NULL;
 623 const uschar *deliver_host     = NULL;
 624 const uschar *deliver_host_address = NULL;
 625 int     deliver_host_port      = 0;
 626 uschar *deliver_in_buffer      = NULL;
 627 ino_t   deliver_inode          = 0;
 628 uschar *deliver_localpart      = NULL;
 629 uschar *deliver_localpart_data = NULL;
 630 uschar *deliver_localpart_orig = NULL;
 631 uschar *deliver_localpart_parent = NULL;
 632 uschar *deliver_localpart_prefix = NULL;
 633 uschar *deliver_localpart_suffix = NULL;
 634 BOOL    deliver_force_thaw     = FALSE;
 635 BOOL    deliver_manual_thaw    = FALSE;
 636 uschar *deliver_out_buffer     = NULL;
 637 int     deliver_queue_load_max = -1;
 638 address_item  *deliver_recipients = NULL;
 639 uschar *deliver_selectstring   = NULL;
 640 BOOL    deliver_selectstring_regex = FALSE;
 641 uschar *deliver_selectstring_sender = NULL;
 642 BOOL    deliver_selectstring_sender_regex = FALSE;
 643 BOOL    disable_callout_flush  = FALSE;
 644 BOOL    disable_delay_flush    = FALSE;
 645 #ifdef ENABLE_DISABLE_FSYNC
 646 BOOL    disable_fsync          = FALSE;
 647 #endif
 648 BOOL    disable_ipv6           = FALSE;
 649 BOOL    disable_logging        = FALSE;
 650
 651 #ifndef DISABLE_DKIM
 652 BOOL    dkim_collect_input       = FALSE;
 653 uschar *dkim_cur_signer          = NULL;
 654 BOOL    dkim_disable_verify      = FALSE;
 655 int     dkim_key_length          = 0;
 656 uschar *dkim_signers             = NULL;
 657 uschar *dkim_signing_domain      = NULL;
 658 uschar *dkim_signing_selector    = NULL;
 659 uschar *dkim_verify_signers      = US"$dkim_signers";
 660 #endif
 661 #ifdef EXPERIMENTAL_DMARC
 662 BOOL    dmarc_has_been_checked  = FALSE;
 663 uschar *dmarc_ar_header         = NULL;
 664 uschar *dmarc_domain_policy     = NULL;
 665 uschar *dmarc_forensic_sender   = NULL;
 666 uschar *dmarc_history_file      = NULL;
 667 uschar *dmarc_status            = NULL;
 668 uschar *dmarc_status_text       = NULL;
 669 uschar *dmarc_tld_file          = NULL;
 670 uschar *dmarc_used_domain       = NULL;
 671 BOOL    dmarc_disable_verify    = FALSE;
 672 BOOL    dmarc_enable_forensic   = FALSE;
 673 #endif
 674
 675 uschar *dns_again_means_nonexist = NULL;
 676 int     dns_csa_search_limit   = 5;
 677 BOOL    dns_csa_use_reverse    = TRUE;
 678 #ifdef EXPERIMENTAL_DANE
 679 int     dns_dane_ok            = -1;
 680 #endif
 681 uschar *dns_ipv4_lookup        = NULL;
 682 int     dns_retrans            = 0;
 683 int     dns_retry              = 0;
 684 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 685 uschar *dns_trust_aa           = NULL;
 686 int     dns_use_edns0          = -1; /* <0 = not coerced */
 687 uschar *dnslist_domain         = NULL;
 688 uschar *dnslist_matched        = NULL;
 689 uschar *dnslist_text           = NULL;
 690 uschar *dnslist_value          = NULL;
 691 tree_node *domainlist_anchor   = NULL;
 692 int     domainlist_count       = 0;
 693 BOOL    dont_deliver           = FALSE;
 694 BOOL    dot_ends               = TRUE;
 695 BOOL    drop_cr                = FALSE;         /* No longer used */
 696 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 697
 698 BOOL    enable_dollar_recipients = FALSE;
 699 BOOL    envelope_to_remove     = TRUE;
 700 int     errno_quota            = ERRNO_QUOTA;
 701 uschar *errors_copy            = NULL;
 702 int     error_handling         = ERRORS_SENDER;
 703 uschar *errors_reply_to        = NULL;
 704 int     errors_sender_rc       = EXIT_FAILURE;
 705 #ifndef DISABLE_EVENT
 706 uschar *event_action             = NULL;        /* expansion for delivery events */
 707 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 708 int     event_defer_errno        = 0;
 709 const uschar *event_name         = NULL;        /* event name variable */
 710 #endif
 711
 712
 713 gid_t   exim_gid               = EXIM_GID;
 714 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 715 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 716                         "\0<---------------Space to patch exim_path->";
 717 uid_t   exim_uid               = EXIM_UID;
 718 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 719 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 720 int     expand_forbid          = 0;
 721 int     expand_nlength[EXPAND_MAXN+1];
 722 int     expand_nmax            = -1;
 723 uschar *expand_nstring[EXPAND_MAXN+1];
 724 BOOL    expand_string_forcedfail = FALSE;
 725 uschar *expand_string_message;
 726 BOOL    extract_addresses_remove_arguments = TRUE;
 727 uschar *extra_local_interfaces = NULL;
 728
 729 int     fake_response          = OK;
 730 uschar *fake_response_text     = US"Your message has been rejected but is "
 731                                    "being kept for evaluation.\nIf it was a "
 732                                    "legitimate message, it may still be "
 733                                    "delivered to the target recipient(s).";
 734 int     filter_n[FILTER_VARIABLE_COUNT];
 735 BOOL    filter_running         = FALSE;
 736 int     filter_sn[FILTER_VARIABLE_COUNT];
 737 int     filter_test            = FTEST_NONE;
 738 uschar *filter_test_sfile      = NULL;
 739 uschar *filter_test_ufile      = NULL;
 740 uschar *filter_thisaddress     = NULL;
 741 int     finduser_retries       = 0;
 742 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 743 uschar *freeze_tell            = NULL;
 744 uschar *freeze_tell_config     = NULL;
 745 uschar *fudged_queue_times     = US"";
 746
 747 uschar *gecos_name             = NULL;
 748 uschar *gecos_pattern          = NULL;
 749 rewrite_rule  *global_rewrite_rules = NULL;
 750
 751 uschar *headers_charset        = US HEADERS_CHARSET;
 752 int     header_insert_maxlen   = 64 * 1024;
 753 header_line  *header_last      = NULL;
 754 header_line  *header_list      = NULL;
 755 int     header_maxsize         = HEADER_MAXSIZE;
 756 int     header_line_maxsize    = 0;
 757
 758 header_name header_names[] = {
 759   { US"bcc",            3, TRUE,  htype_bcc },
 760   { US"cc",             2, TRUE,  htype_cc },
 761   { US"date",           4, TRUE,  htype_date },
 762   { US"delivery-date", 13, FALSE, htype_delivery_date },
 763   { US"envelope-to",   11, FALSE, htype_envelope_to },
 764   { US"from",           4, TRUE,  htype_from },
 765   { US"message-id",    10, TRUE,  htype_id },
 766   { US"received",       8, FALSE, htype_received },
 767   { US"reply-to",       8, FALSE, htype_reply_to },
 768   { US"return-path",   11, FALSE, htype_return_path },
 769   { US"sender",         6, TRUE,  htype_sender },
 770   { US"subject",        7, FALSE, htype_subject },
 771   { US"to",             2, TRUE,  htype_to }
 772 };
 773
 774 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 775
 776 BOOL    header_rewritten       = FALSE;
 777 uschar *helo_accept_junk_hosts = NULL;
 778 uschar *helo_allow_chars       = US"";
 779 uschar *helo_lookup_domains    = US"@ : @[]";
 780 uschar *helo_try_verify_hosts  = NULL;
 781 BOOL    helo_verified          = FALSE;
 782 BOOL    helo_verify_failed     = FALSE;
 783 uschar *helo_verify_hosts      = NULL;
 784 const uschar *hex_digits       = CUS"0123456789abcdef";
 785 uschar *hold_domains           = NULL;
 786 BOOL    host_checking          = FALSE;
 787 BOOL    host_checking_callout  = FALSE;
 788 uschar *host_data              = NULL;
 789 BOOL    host_find_failed_syntax= FALSE;
 790 uschar *host_lookup            = NULL;
 791 BOOL    host_lookup_deferred   = FALSE;
 792 BOOL    host_lookup_failed     = FALSE;
 793 uschar *host_lookup_order      = US"bydns:byaddr";
 794 uschar *host_lookup_msg        = US"";
 795 int     host_number            = 0;
 796 uschar *host_number_string     = NULL;
 797 uschar *host_reject_connection = NULL;
 798 tree_node *hostlist_anchor     = NULL;
 799 int     hostlist_count         = 0;
 800 uschar *hosts_treat_as_local   = NULL;
 801 uschar *hosts_connection_nolog = NULL;
 802
 803 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 804 BOOL    ignore_fromline_local  = FALSE;
 805 uschar *ignore_fromline_hosts  = NULL;
 806 BOOL    inetd_wait_mode        = FALSE;
 807 int     inetd_wait_timeout     = -1;
 808 uschar *initial_cwd            = NULL;
 809 uschar *interface_address      = NULL;
 810 int     interface_port         = -1;
 811 BOOL    is_inetd               = FALSE;
 812 uschar *iterate_item           = NULL;
 813
 814 int     journal_fd             = -1;
 815
 816 uschar *keep_environment       = NULL;
 817
 818 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 819
 820 uschar *eldap_dn               = NULL;
 821 int     load_average           = -2;
 822 BOOL    local_error_message    = FALSE;
 823 BOOL    local_from_check       = TRUE;
 824 uschar *local_from_prefix      = NULL;
 825 uschar *local_from_suffix      = NULL;
 826
 827 #if HAVE_IPV6
 828 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 829 #else
 830 uschar *local_interfaces       = US"0.0.0.0";
 831 #endif
 832
 833 uschar *local_scan_data        = NULL;
 834 int     local_scan_timeout     = 5*60;
 835 BOOL    local_sender_retain    = FALSE;
 836 gid_t   local_user_gid         = (gid_t)(-1);
 837 uid_t   local_user_uid         = (uid_t)(-1);
 838
 839 tree_node *localpartlist_anchor= NULL;
 840 int     localpartlist_count    = 0;
 841 uschar *log_buffer             = NULL;
 842
 843 int     log_default[]          = { /* for initializing log_selector */
 844   Li_acl_warn_skipped,
 845   Li_connection_reject,
 846   Li_delay_delivery,
 847   Li_dnslist_defer,
 848   Li_etrn,
 849   Li_host_lookup_failed,
 850   Li_lost_incoming_connection,
 851   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 852   Li_queue_run,
 853   Li_rejected_header,
 854   Li_retry_defer,
 855   Li_sender_verify_fail,
 856   Li_size_reject,
 857   Li_skip_delivery,
 858   Li_smtp_confirmation,
 859   Li_tls_certificate_verified,
 860   Li_tls_cipher,
 861   -1
 862 };
 863
 864 uschar *log_file_path          = US LOG_FILE_PATH
 865                            "\0<--------------Space to patch log_file_path->";
 866
 867 int     log_notall[]           = {
 868   -1
 869 };
 870 bit_table log_options[]        = { /* must be in alphabetical order */
 871   BIT_TABLE(L, 8bitmime),
 872   BIT_TABLE(L, acl_warn_skipped),
 873   BIT_TABLE(L, address_rewrite),
 874   BIT_TABLE(L, all),
 875   BIT_TABLE(L, all_parents),
 876   BIT_TABLE(L, arguments),
 877   BIT_TABLE(L, connection_reject),
 878   BIT_TABLE(L, delay_delivery),
 879   BIT_TABLE(L, deliver_time),
 880   BIT_TABLE(L, delivery_size),
 881   BIT_TABLE(L, dnslist_defer),
 882   BIT_TABLE(L, dnssec),
 883   BIT_TABLE(L, etrn),
 884   BIT_TABLE(L, host_lookup_failed),
 885   BIT_TABLE(L, ident_timeout),
 886   BIT_TABLE(L, incoming_interface),
 887   BIT_TABLE(L, incoming_port),
 888   BIT_TABLE(L, lost_incoming_connection),
 889   BIT_TABLE(L, outgoing_interface),
 890   BIT_TABLE(L, outgoing_port),
 891   BIT_TABLE(L, pid),
 892 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 893   BIT_TABLE(L, proxy),
 894 #endif
 895   BIT_TABLE(L, queue_run),
 896   BIT_TABLE(L, queue_time),
 897   BIT_TABLE(L, queue_time_overall),
 898   BIT_TABLE(L, received_recipients),
 899   BIT_TABLE(L, received_sender),
 900   BIT_TABLE(L, rejected_header),
 901   { US"rejected_headers", Li_rejected_header },
 902   BIT_TABLE(L, retry_defer),
 903   BIT_TABLE(L, return_path_on_delivery),
 904   BIT_TABLE(L, sender_on_delivery),
 905   BIT_TABLE(L, sender_verify_fail),
 906   BIT_TABLE(L, size_reject),
 907   BIT_TABLE(L, skip_delivery),
 908   BIT_TABLE(L, smtp_confirmation),
 909   BIT_TABLE(L, smtp_connection),
 910   BIT_TABLE(L, smtp_incomplete_transaction),
 911   BIT_TABLE(L, smtp_mailauth),
 912   BIT_TABLE(L, smtp_no_mail),
 913   BIT_TABLE(L, smtp_protocol_error),
 914   BIT_TABLE(L, smtp_syntax_error),
 915   BIT_TABLE(L, subject),
 916   BIT_TABLE(L, tls_certificate_verified),
 917   BIT_TABLE(L, tls_cipher),
 918   BIT_TABLE(L, tls_peerdn),
 919   BIT_TABLE(L, tls_sni),
 920   BIT_TABLE(L, unknown_in_list),
 921 };
 922 int     log_options_count      = nelem(log_options);
 923
 924 int     log_reject_target      = 0;
 925 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 926 uschar *log_selector_string    = NULL;
 927 FILE   *log_stderr             = NULL;
 928 BOOL    log_testing_mode       = FALSE;
 929 BOOL    log_timezone           = FALSE;
 930 uschar *login_sender_address   = NULL;
 931 uschar *lookup_dnssec_authenticated = NULL;
 932 int     lookup_open_max        = 25;
 933 uschar *lookup_value           = NULL;
 934
 935 macro_item  *macros            = NULL;
 936 macro_item  *mlast             = NULL;
 937 BOOL    macros_builtin_created = FALSE;
 938 uschar *mailstore_basename     = NULL;
 939 #ifdef WITH_CONTENT_SCAN
 940 uschar *malware_name           = NULL;  /* Virus Name */
 941 #endif
 942 int     max_received_linelength= 0;
 943 int     max_username_length    = 0;
 944 int     message_age            = 0;
 945 uschar *message_body           = NULL;
 946 uschar *message_body_end       = NULL;
 947 BOOL    message_body_newlines  = FALSE;
 948 int     message_body_size      = 0;
 949 int     message_body_visible   = 500;
 950 int     message_ended          = END_NOTSTARTED;
 951 uschar *message_headers        = NULL;
 952 uschar *message_id;
 953 uschar *message_id_domain      = NULL;
 954 uschar *message_id_text        = NULL;
 955 struct timeval message_id_tv   = { 0, 0 };
 956 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 957 uschar *message_id_external;
 958 int     message_linecount      = 0;
 959 BOOL    message_logs           = TRUE;
 960 int     message_size           = 0;
 961 uschar *message_size_limit     = US"50M";
 962 #ifdef SUPPORT_I18N
 963 BOOL    message_smtputf8       = FALSE;
 964 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 965 #endif
 966 uschar  message_subdir[2]      = { 0, 0 };
 967 uschar *message_reference      = NULL;
 968
 969 /* MIME ACL expandables */
 970 #ifdef WITH_CONTENT_SCAN
 971 int     mime_anomaly_level     = 0;
 972 const uschar *mime_anomaly_text      = NULL;
 973 uschar *mime_boundary          = NULL;
 974 uschar *mime_charset           = NULL;
 975 uschar *mime_content_description = NULL;
 976 uschar *mime_content_disposition = NULL;
 977 uschar *mime_content_id        = NULL;
 978 unsigned int mime_content_size = 0;
 979 uschar *mime_content_transfer_encoding = NULL;
 980 uschar *mime_content_type      = NULL;
 981 uschar *mime_decoded_filename  = NULL;
 982 uschar *mime_filename          = NULL;
 983 int     mime_is_multipart      = 0;
 984 int     mime_is_coverletter    = 0;
 985 int     mime_is_rfc822         = 0;
 986 int     mime_part_count        = -1;
 987 #endif
 988
 989 BOOL    mua_wrapper            = FALSE;
 990
 991 uid_t  *never_users            = NULL;
 992 #ifdef WITH_CONTENT_SCAN
 993 BOOL    no_mbox_unspool        = FALSE;
 994 #endif
 995 BOOL    no_multiline_responses = FALSE;
 996
 997 const int on                   = 1;     /* for setsockopt */
 998 const int off                  = 0;
 999
1000 uid_t   original_euid;
1001 gid_t   originator_gid;
1002 uschar *originator_login       = NULL;
1003 uschar *originator_name        = NULL;
1004 uid_t   originator_uid;
1005 uschar *override_local_interfaces = NULL;
1006 uschar *override_pid_file_path = NULL;
1007
1008 BOOL    parse_allow_group      = FALSE;
1009 BOOL    parse_found_group      = FALSE;
1010 uschar *percent_hack_domains   = NULL;
1011 uschar *pid_file_path          = US PID_FILE_PATH
1012                            "\0<--------------Space to patch pid_file_path->";
1013 BOOL    pipelining_enable      = TRUE;
1014 uschar *pipelining_advertise_hosts = US"*";
1015 BOOL    preserve_message_logs  = FALSE;
1016 uschar *primary_hostname       = NULL;
1017 BOOL    print_topbitchars      = FALSE;
1018 uschar  process_info[PROCESS_INFO_SIZE];
1019 int     process_info_len       = 0;
1020 uschar *process_log_path       = NULL;
1021 BOOL    prod_requires_admin    = TRUE;
1022
1023 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1024 uschar *hosts_proxy            = US"";
1025 uschar *proxy_external_address = US"";
1026 int     proxy_external_port    = 0;
1027 uschar *proxy_local_address    = US"";
1028 int     proxy_local_port       = 0;
1029 BOOL    proxy_session          = FALSE;
1030 BOOL    proxy_session_failed   = FALSE;
1031 #endif
1032
1033 uschar *prvscheck_address      = NULL;
1034 uschar *prvscheck_keynum       = NULL;
1035 uschar *prvscheck_result       = NULL;
1036
1037
1038 const uschar *qualify_domain_recipient = NULL;
1039 uschar *qualify_domain_sender  = NULL;
1040 BOOL    queue_2stage           = FALSE;
1041 uschar *queue_domains          = NULL;
1042 int     queue_interval         = -1;
1043 BOOL    queue_list_requires_admin = TRUE;
1044 uschar *queue_name             = US"";
1045 BOOL    queue_only             = FALSE;
1046 uschar *queue_only_file        = NULL;
1047 int     queue_only_load        = -1;
1048 BOOL    queue_only_load_latch  = TRUE;
1049 BOOL    queue_only_override    = TRUE;
1050 BOOL    queue_only_policy      = FALSE;
1051 BOOL    queue_run_first_delivery = FALSE;
1052 BOOL    queue_run_force        = FALSE;
1053 BOOL    queue_run_in_order     = FALSE;
1054 BOOL    queue_run_local        = FALSE;
1055 uschar *queue_run_max          = US"5";
1056 pid_t   queue_run_pid          = (pid_t)0;
1057 int     queue_run_pipe         = -1;
1058 BOOL    queue_running          = FALSE;
1059 BOOL    queue_smtp             = FALSE;
1060 uschar *queue_smtp_domains     = NULL;
1061
1062 unsigned int random_seed       = 0;
1063 tree_node *ratelimiters_cmd    = NULL;
1064 tree_node *ratelimiters_conn   = NULL;
1065 tree_node *ratelimiters_mail   = NULL;
1066 uschar *raw_active_hostname    = NULL;
1067 uschar *raw_sender             = NULL;
1068 uschar **raw_recipients        = NULL;
1069 int     raw_recipients_count   = 0;
1070
1071 int     rcpt_count             = 0;
1072 int     rcpt_fail_count        = 0;
1073 int     rcpt_defer_count       = 0;
1074 gid_t   real_gid;
1075 uid_t   real_uid;
1076 BOOL    really_exim            = TRUE;
1077 BOOL    receive_call_bombout   = FALSE;
1078 int     receive_linecount      = 0;
1079 int     receive_messagecount   = 0;
1080 int     receive_timeout        = 0;
1081 int     received_count         = 0;
1082 uschar *received_for           = NULL;
1083
1084 /*  This is the default text for Received headers generated by Exim. The
1085 date  will be automatically added on the end. */
1086
1087 uschar *received_header_text   = US
1088      "Received: "
1089      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1090      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1091      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1092      "by $primary_hostname "
1093      "${if def:received_protocol {with $received_protocol}} "
1094      #ifdef SUPPORT_TLS
1095      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1096      #endif
1097      "(Exim $version_number)\n\t"
1098      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1099      "id $message_exim_id"
1100      "${if def:received_for {\n\tfor $received_for}}"
1101      "\0<---------------Space to patch received_header_text->";
1102
1103 int     received_headers_max   = 30;
1104 uschar *received_protocol      = NULL;
1105 int     received_time          = 0;
1106 uschar *recipient_data         = NULL;
1107 uschar *recipient_unqualified_hosts = NULL;
1108 uschar *recipient_verify_failure = NULL;
1109 int     recipients_count       = 0;
1110 BOOL    recipients_discarded   = FALSE;
1111 recipient_item  *recipients_list = NULL;
1112 int     recipients_list_max    = 0;
1113 int     recipients_max         = 0;
1114 BOOL    recipients_max_reject  = FALSE;
1115 const pcre *regex_AUTH         = NULL;
1116 const pcre *regex_check_dns_names = NULL;
1117 const pcre *regex_From         = NULL;
1118 const pcre *regex_IGNOREQUOTA  = NULL;
1119 const pcre *regex_PIPELINING   = NULL;
1120 const pcre *regex_SIZE         = NULL;
1121 const pcre *regex_ismsgid      = NULL;
1122 const pcre *regex_smtp_code    = NULL;
1123 uschar *regex_vars[REGEX_VARS];
1124 #ifdef WHITELIST_D_MACROS
1125 const pcre *regex_whitelisted_macro = NULL;
1126 #endif
1127 #ifdef WITH_CONTENT_SCAN
1128 uschar *regex_match_string     = NULL;
1129 #endif
1130 int     remote_delivery_count  = 0;
1131 int     remote_max_parallel    = 2;
1132 uschar *remote_sort_domains    = NULL;
1133 int     retry_data_expire      = 7*24*60*60;
1134 int     retry_interval_max     = 24*60*60;
1135 int     retry_maximum_timeout  = 0;        /* set from retry config */
1136 retry_config  *retries         = NULL;
1137 uschar *return_path            = NULL;
1138 BOOL    return_path_remove     = TRUE;
1139 int     rewrite_existflags     = 0;
1140 uschar *rfc1413_hosts          = US"@[]";
1141 int     rfc1413_query_timeout  = 0;
1142 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1143 uid_t   root_gid               = ROOT_GID;
1144 uid_t   root_uid               = ROOT_UID;
1145
1146 router_instance  *routers  = NULL;
1147 router_instance  router_defaults = {
1148     NULL,                      /* chain pointer */
1149     NULL,                      /* name */
1150     NULL,                      /* info */
1151     NULL,                      /* private options block pointer */
1152     NULL,                      /* driver name */
1153
1154     NULL,                      /* address_data */
1155 #ifdef EXPERIMENTAL_BRIGHTMAIL
1156     NULL,                      /* bmi_rule */
1157 #endif
1158     NULL,                      /* cannot_route_message */
1159     NULL,                      /* condition */
1160     NULL,                      /* current_directory */
1161     NULL,                      /* debug_string */
1162     NULL,                      /* domains */
1163     NULL,                      /* errors_to */
1164     NULL,                      /* expand_gid */
1165     NULL,                      /* expand_uid */
1166     NULL,                      /* expand_more */
1167     NULL,                      /* expand_unseen */
1168     NULL,                      /* extra_headers */
1169     NULL,                      /* fallback_hosts */
1170     NULL,                      /* home_directory */
1171     NULL,                      /* ignore_target_hosts */
1172     NULL,                      /* local_parts */
1173     NULL,                      /* pass_router_name */
1174     NULL,                      /* prefix */
1175     NULL,                      /* redirect_router_name */
1176     NULL,                      /* remove_headers */
1177     NULL,                      /* require_files */
1178     NULL,                      /* router_home_directory */
1179     US"freeze",                /* self */
1180     NULL,                      /* senders */
1181     NULL,                      /* suffix */
1182     NULL,                      /* translate_ip_address */
1183     NULL,                      /* transport_name */
1184
1185     TRUE,                      /* address_test */
1186 #ifdef EXPERIMENTAL_BRIGHTMAIL
1187     FALSE,                     /* bmi_deliver_alternate */
1188     FALSE,                     /* bmi_deliver_default */
1189     FALSE,                     /* bmi_dont_deliver */
1190 #endif
1191     TRUE,                      /* expn */
1192     FALSE,                     /* caseful_local_part */
1193     FALSE,                     /* check_local_user */
1194     FALSE,                     /* disable_logging */
1195     FALSE,                     /* fail_verify_recipient */
1196     FALSE,                     /* fail_verify_sender */
1197     FALSE,                     /* gid_set */
1198     FALSE,                     /* initgroups */
1199     TRUE_UNSET,                /* log_as_local */
1200     TRUE,                      /* more */
1201     FALSE,                     /* pass_on_timeout */
1202     FALSE,                     /* prefix_optional */
1203     TRUE,                      /* repeat_use */
1204     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1205     FALSE,                     /* same_domain_copy_routing */
1206     FALSE,                     /* self_rewrite */
1207     FALSE,                     /* suffix_optional */
1208     FALSE,                     /* verify_only */
1209     TRUE,                      /* verify_recipient */
1210     TRUE,                      /* verify_sender */
1211     FALSE,                     /* uid_set */
1212     FALSE,                     /* unseen */
1213     FALSE,                     /* dsn_lasthop */
1214
1215     self_freeze,               /* self_code */
1216     (uid_t)(-1),               /* uid */
1217     (gid_t)(-1),               /* gid */
1218
1219     NULL,                      /* fallback_hostlist */
1220     NULL,                      /* transport instance */
1221     NULL,                      /* pass_router */
1222     NULL,                      /* redirect_router */
1223
1224     { NULL, NULL },            /* dnssec_domains {require,request} */
1225 };
1226
1227 uschar *router_name            = NULL;
1228
1229 ip_address_item *running_interfaces = NULL;
1230 BOOL    running_in_test_harness = FALSE;
1231
1232 /* This is a weird one. The following string gets patched in the binary by the
1233 script that sets up a copy of Exim for running in the test harness. It seems
1234 that compilers are now clever, and share constant strings if they can.
1235 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1236 make use of the end of this string in order to save space. So the patching then
1237 wrecks this. We defeat this optimization by adding some additional characters
1238 onto the end of the string. */
1239
1240 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1241
1242 int     runrc                  = 0;
1243
1244 uschar *search_error_message   = NULL;
1245 BOOL    search_find_defer      = FALSE;
1246 uschar *self_hostname          = NULL;
1247 uschar *sender_address         = NULL;
1248 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1249 uschar *sender_address_data    = NULL;
1250 BOOL    sender_address_forced  = FALSE;
1251 uschar *sender_address_unrewritten = NULL;
1252 uschar *sender_data            = NULL;
1253 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1254 uschar *sender_fullhost        = NULL;
1255 BOOL    sender_helo_dnssec     = FALSE;
1256 uschar *sender_helo_name       = NULL;
1257 uschar **sender_host_aliases   = &no_aliases;
1258 uschar *sender_host_address    = NULL;
1259 uschar *sender_host_authenticated = NULL;
1260 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1261 BOOL    sender_host_dnssec     = FALSE;
1262 uschar *sender_host_name       = NULL;
1263 int     sender_host_port       = 0;
1264 BOOL    sender_host_notsocket  = FALSE;
1265 BOOL    sender_host_unknown    = FALSE;
1266 uschar *sender_ident           = NULL;
1267 BOOL    sender_local           = FALSE;
1268 BOOL    sender_name_forced     = FALSE;
1269 uschar *sender_rate            = NULL;
1270 uschar *sender_rate_limit      = NULL;
1271 uschar *sender_rate_period     = NULL;
1272 uschar *sender_rcvhost         = NULL;
1273 BOOL    sender_set_untrusted   = FALSE;
1274 uschar *sender_unqualified_hosts = NULL;
1275 uschar *sender_verify_failure = NULL;
1276 address_item *sender_verified_list  = NULL;
1277 address_item *sender_verified_failed = NULL;
1278 int     sender_verified_rc     = -1;
1279 BOOL    sender_verified_responded = FALSE;
1280 uschar *sending_ip_address     = NULL;
1281 int     sending_port           = -1;
1282 SIGNAL_BOOL sigalrm_seen       = FALSE;
1283 uschar **sighup_argv           = NULL;
1284 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1285 int     smtp_accept_count      = 0;
1286 BOOL    smtp_accept_keepalive  = TRUE;
1287 int     smtp_accept_max        = 20;
1288 int     smtp_accept_max_nonmail= 10;
1289 uschar *smtp_accept_max_nonmail_hosts = US"*";
1290 int     smtp_accept_max_per_connection = 1000;
1291 uschar *smtp_accept_max_per_host = NULL;
1292 int     smtp_accept_queue      = 0;
1293 int     smtp_accept_queue_per_connection = 10;
1294 int     smtp_accept_reserve    = 0;
1295 uschar *smtp_active_hostname   = NULL;
1296 BOOL    smtp_authenticated     = FALSE;
1297 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1298                              "Exim $version_number $tod_full"
1299                              "\0<---------------Space to patch smtp_banner->";
1300 BOOL    smtp_batched_input     = FALSE;
1301 BOOL    smtp_check_spool_space = TRUE;
1302 int     smtp_ch_index          = 0;
1303 uschar *smtp_cmd_argument      = NULL;
1304 uschar *smtp_cmd_buffer        = NULL;
1305 time_t  smtp_connection_start  = 0;
1306 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1307 int     smtp_connect_backlog   = 20;
1308 double  smtp_delay_mail        = 0.0;
1309 double  smtp_delay_rcpt        = 0.0;
1310 BOOL    smtp_enforce_sync      = TRUE;
1311 FILE   *smtp_in                = NULL;
1312 BOOL    smtp_input             = FALSE;
1313 int     smtp_load_reserve      = -1;
1314 int     smtp_mailcmd_count     = 0;
1315 FILE   *smtp_out               = NULL;
1316 uschar *smtp_etrn_command      = NULL;
1317 BOOL    smtp_etrn_serialize    = TRUE;
1318 int     smtp_max_synprot_errors= 3;
1319 int     smtp_max_unknown_commands = 3;
1320 uschar *smtp_notquit_reason    = NULL;
1321 uschar *smtp_ratelimit_hosts   = NULL;
1322 uschar *smtp_ratelimit_mail    = NULL;
1323 uschar *smtp_ratelimit_rcpt    = NULL;
1324 uschar *smtp_read_error        = US"";
1325 int     smtp_receive_timeout   = 5*60;
1326 uschar *smtp_receive_timeout_s = NULL;
1327 uschar *smtp_reserve_hosts     = NULL;
1328 BOOL    smtp_return_error_details = FALSE;
1329 int     smtp_rlm_base          = 0;
1330 double  smtp_rlm_factor        = 0.0;
1331 int     smtp_rlm_limit         = 0;
1332 int     smtp_rlm_threshold     = INT_MAX;
1333 int     smtp_rlr_base          = 0;
1334 double  smtp_rlr_factor        = 0.0;
1335 int     smtp_rlr_limit         = 0;
1336 int     smtp_rlr_threshold     = INT_MAX;
1337 unsigned smtp_peer_options     = 0;
1338 unsigned smtp_peer_options_wrap= 0;
1339 #ifdef SUPPORT_I18N
1340 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1341 #endif
1342
1343 #ifdef WITH_CONTENT_SCAN
1344 uschar *spamd_address          = US"127.0.0.1 783";
1345 uschar *spam_bar               = NULL;
1346 uschar *spam_report            = NULL;
1347 uschar *spam_action            = NULL;
1348 uschar *spam_score             = NULL;
1349 uschar *spam_score_int         = NULL;
1350 #endif
1351 #ifdef EXPERIMENTAL_SPF
1352 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1353 uschar *spf_header_comment     = NULL;
1354 uschar *spf_received           = NULL;
1355 uschar *spf_result             = NULL;
1356 uschar *spf_smtp_comment       = NULL;
1357 #endif
1358
1359 BOOL    split_spool_directory  = FALSE;
1360 uschar *spool_directory        = US SPOOL_DIRECTORY
1361                            "\0<--------------Space to patch spool_directory->";
1362 #ifdef EXPERIMENTAL_SRS
1363 uschar *srs_config             = NULL;
1364 uschar *srs_db_address         = NULL;
1365 uschar *srs_db_key             = NULL;
1366 int     srs_hashlength         = 6;
1367 int     srs_hashmin            = -1;
1368 int     srs_maxage             = 31;
1369 uschar *srs_orig_recipient     = NULL;
1370 uschar *srs_orig_sender        = NULL;
1371 uschar *srs_recipient          = NULL;
1372 uschar *srs_secrets            = NULL;
1373 uschar *srs_status             = NULL;
1374 BOOL    srs_usehash            = TRUE;
1375 BOOL    srs_usetimestamp       = TRUE;
1376 #endif
1377 BOOL    strict_acl_vars        = FALSE;
1378 int     string_datestamp_offset= -1;
1379 int     string_datestamp_length= 0;
1380 int     string_datestamp_type  = -1;
1381 BOOL    strip_excess_angle_brackets = FALSE;
1382 BOOL    strip_trailing_dot     = FALSE;
1383 uschar *submission_domain      = NULL;
1384 BOOL    submission_mode        = FALSE;
1385 uschar *submission_name        = NULL;
1386 BOOL    suppress_local_fixups  = FALSE;
1387 BOOL    suppress_local_fixups_default = FALSE;
1388 BOOL    synchronous_delivery   = FALSE;
1389 BOOL    syslog_duplication     = TRUE;
1390 int     syslog_facility        = LOG_MAIL;
1391 BOOL    syslog_pid             = TRUE;
1392 uschar *syslog_processname     = US"exim";
1393 BOOL    syslog_timestamp       = TRUE;
1394 uschar *system_filter          = NULL;
1395
1396 uschar *system_filter_directory_transport = NULL;
1397 uschar *system_filter_file_transport = NULL;
1398 uschar *system_filter_pipe_transport = NULL;
1399 uschar *system_filter_reply_transport = NULL;
1400
1401 gid_t   system_filter_gid      = 0;
1402 BOOL    system_filter_gid_set  = FALSE;
1403 uid_t   system_filter_uid      = (uid_t)-1;
1404 BOOL    system_filter_uid_set  = FALSE;
1405 BOOL    system_filtering       = FALSE;
1406
1407 BOOL    tcp_fastopen_ok        = FALSE;
1408 BOOL    tcp_nodelay            = TRUE;
1409 #ifdef USE_TCP_WRAPPERS
1410 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1411 #endif
1412 int     test_harness_load_avg  = 0;
1413 int     thismessage_size_limit = 0;
1414 int     timeout_frozen_after   = 0;
1415 BOOL    timestamps_utc         = FALSE;
1416
1417 transport_instance  *transports = NULL;
1418
1419 transport_instance  transport_defaults = {
1420     NULL,                     /* chain pointer */
1421     NULL,                     /* name */
1422     NULL,                     /* info */
1423     NULL,                     /* private options block pointer */
1424     NULL,                     /* driver name */
1425     NULL,                     /* setup entry point */
1426     1,                        /* batch_max */
1427     NULL,                     /* batch_id */
1428     NULL,                     /* home_dir */
1429     NULL,                     /* current_dir */
1430     NULL,                     /* expand-multi-domain */
1431     TRUE,                     /* multi-domain */
1432     FALSE,                    /* overrides_hosts */
1433     100,                      /* max_addresses */
1434     500,                      /* connection_max_messages */
1435     FALSE,                    /* deliver_as_creator */
1436     FALSE,                    /* disable_logging */
1437     FALSE,                    /* initgroups */
1438     FALSE,                    /* uid_set */
1439     FALSE,                    /* gid_set */
1440     (uid_t)(-1),              /* uid */
1441     (gid_t)(-1),              /* gid */
1442     NULL,                     /* expand_uid */
1443     NULL,                     /* expand_gid */
1444     NULL,                     /* warn_message */
1445     NULL,                     /* shadow */
1446     NULL,                     /* shadow_condition */
1447     NULL,                     /* filter_command */
1448     NULL,                     /* add_headers */
1449     NULL,                     /* remove_headers */
1450     NULL,                     /* return_path */
1451     NULL,                     /* debug_string */
1452     NULL,                     /* max_parallel */
1453     NULL,                     /* message_size_limit */
1454     NULL,                     /* headers_rewrite */
1455     NULL,                     /* rewrite_rules */
1456     0,                        /* rewrite_existflags */
1457     300,                      /* filter_timeout */
1458     FALSE,                    /* body_only */
1459     FALSE,                    /* delivery_date_add */
1460     FALSE,                    /* envelope_to_add */
1461     FALSE,                    /* headers_only */
1462     FALSE,                    /* rcpt_include_affixes */
1463     FALSE,                    /* return_path_add */
1464     FALSE,                    /* return_output */
1465     FALSE,                    /* return_fail_output */
1466     FALSE,                    /* log_output */
1467     FALSE,                    /* log_fail_output */
1468     FALSE,                    /* log_defer_output */
1469     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1470                                  1 nor 0 so can detect unset */
1471 #ifndef DISABLE_EVENT
1472    ,NULL                      /* event_action */
1473 #endif
1474 };
1475
1476 int     transport_count;
1477 uschar *transport_name          = NULL;
1478 int     transport_newlines;
1479 const uschar **transport_filter_argv  = NULL;
1480 int     transport_filter_timeout;
1481 BOOL    transport_filter_timed_out = FALSE;
1482 int     transport_write_timeout= 0;
1483
1484 tree_node  *tree_dns_fails     = NULL;
1485 tree_node  *tree_duplicates    = NULL;
1486 tree_node  *tree_nonrecipients = NULL;
1487 tree_node  *tree_unusable      = NULL;
1488
1489 BOOL    trusted_caller         = FALSE;
1490 BOOL    trusted_config         = TRUE;
1491 gid_t  *trusted_groups         = NULL;
1492 uid_t  *trusted_users          = NULL;
1493 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1494
1495 uschar *unknown_login          = NULL;
1496 uschar *unknown_username       = NULL;
1497 uschar *untrusted_set_sender   = NULL;
1498
1499 /*  A regex for matching a "From_" line in an incoming message, in the form
1500
1501     From ph10 Fri Jan  5 12:35 GMT 1996
1502
1503 which  the "mail" commands send to the MTA (undocumented, of course), or in
1504 the  form
1505
1506     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1507
1508 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1509 Because  of variations in time formats, just match up to the minutes. That
1510 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1511 so  just require one digit for hours and minutes. The weekday is also absent
1512 in  some forms. */
1513
1514 uschar *uucp_from_pattern      = US
1515    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1516    "(?:"                                          /* Non-extracting bracket */
1517    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1518    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1519    ")"                                            /* End alternation */
1520    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1521
1522 uschar *uucp_from_sender       = US"$1";
1523
1524 uschar *verify_mode            = NULL;
1525 uschar *version_copyright      =
1526  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1527    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1528 uschar *version_date           = US"?";
1529 uschar *version_cnumber        = US"????";
1530 uschar *version_string         = US"?";
1531
1532 uschar *warn_message_file      = NULL;
1533 int     warning_count          = 0;
1534 uschar *warnmsg_delay          = NULL;
1535 uschar *warnmsg_recipients     = NULL;
1536 BOOL    write_rejectlog        = TRUE;
1537
1538
1539 /*  End of globals.c */