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