src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2016 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = 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"prime256v1";
 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)(void)  = stdin_getc;
 187 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 188 int (*receive_getc)(void)      = 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 uschar *acl_not_smtp           = NULL;
 232 #ifdef WITH_CONTENT_SCAN
 233 uschar *acl_not_smtp_mime      = NULL;
 234 #endif
 235 uschar *acl_not_smtp_start     = NULL;
 236 uschar *acl_removed_headers    = NULL;
 237 uschar *acl_smtp_auth          = NULL;
 238 uschar *acl_smtp_connect       = NULL;
 239 uschar *acl_smtp_data          = NULL;
 240 #ifndef DISABLE_PRDR
 241 uschar *acl_smtp_data_prdr     = US"accept";
 242 #endif
 243 #ifndef DISABLE_DKIM
 244 uschar *acl_smtp_dkim          = NULL;
 245 #endif
 246 uschar *acl_smtp_etrn          = NULL;
 247 uschar *acl_smtp_expn          = NULL;
 248 uschar *acl_smtp_helo          = NULL;
 249 uschar *acl_smtp_mail          = NULL;
 250 uschar *acl_smtp_mailauth      = NULL;
 251 #ifdef WITH_CONTENT_SCAN
 252 uschar *acl_smtp_mime          = NULL;
 253 #endif
 254 uschar *acl_smtp_notquit       = NULL;
 255 uschar *acl_smtp_predata       = NULL;
 256 uschar *acl_smtp_quit          = NULL;
 257 uschar *acl_smtp_rcpt          = NULL;
 258 uschar *acl_smtp_starttls      = NULL;
 259 uschar *acl_smtp_vrfy          = NULL;
 260
 261 BOOL    acl_temp_details       = FALSE;
 262 tree_node *acl_var_c           = NULL;
 263 tree_node *acl_var_m           = NULL;
 264 uschar *acl_verify_message     = NULL;
 265 string_item *acl_warn_logged   = NULL;
 266
 267 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 268 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 269
 270 uschar *acl_wherenames[]       = { US"RCPT",
 271                                    US"MAIL",
 272                                    US"PREDATA",
 273                                    US"MIME",
 274                                    US"DKIM",
 275                                    US"DATA",
 276 #ifndef DISABLE_PRDR
 277                                    US"PRDR",
 278 #endif
 279                                    US"non-SMTP",
 280                                    US"AUTH",
 281                                    US"connection",
 282                                    US"ETRN",
 283                                    US"EXPN",
 284                                    US"EHLO or HELO",
 285                                    US"MAILAUTH",
 286                                    US"non-SMTP-start",
 287                                    US"NOTQUIT",
 288                                    US"QUIT",
 289                                    US"STARTTLS",
 290                                    US"VRFY",
 291                                    US"delivery",
 292                                    US"unknown"
 293                                  };
 294
 295 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 296                                    US"550",     /* MAIL */
 297                                    US"550",     /* PREDATA */
 298                                    US"550",     /* MIME */
 299                                    US"550",     /* DKIM */
 300                                    US"550",     /* DATA */
 301 #ifndef DISABLE_PRDR
 302                                    US"550",    /* RCPT PRDR */
 303 #endif
 304                                    US"0",       /* not SMTP; not relevant */
 305                                    US"503",     /* AUTH */
 306                                    US"550",     /* connect */
 307                                    US"458",     /* ETRN */
 308                                    US"550",     /* EXPN */
 309                                    US"550",     /* HELO/EHLO */
 310                                    US"0",       /* MAILAUTH; not relevant */
 311                                    US"0",       /* not SMTP; not relevant */
 312                                    US"0",       /* NOTQUIT; not relevant */
 313                                    US"0",       /* QUIT; not relevant */
 314                                    US"550",     /* STARTTLS */
 315                                    US"252",     /* VRFY */
 316                                    US"0",       /* delivery; not relevant */
 317                                    US"0"        /* unknown; not relevant */
 318                                  };
 319
 320 BOOL    active_local_from_check = FALSE;
 321 BOOL    active_local_sender_retain = FALSE;
 322 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 323 uschar *add_environment        = NULL;
 324 address_item  *addr_duplicate  = NULL;
 325
 326 address_item address_defaults = {
 327   NULL,                 /* next */
 328   NULL,                 /* parent */
 329   NULL,                 /* first */
 330   NULL,                 /* dupof */
 331   NULL,                 /* start_router */
 332   NULL,                 /* router */
 333   NULL,                 /* transport */
 334   NULL,                 /* host_list */
 335   NULL,                 /* host_used */
 336   NULL,                 /* fallback_hosts */
 337   NULL,                 /* reply */
 338   NULL,                 /* retries */
 339   NULL,                 /* address */
 340   NULL,                 /* unique */
 341   NULL,                 /* cc_local_part */
 342   NULL,                 /* lc_local_part */
 343   NULL,                 /* local_part */
 344   NULL,                 /* prefix */
 345   NULL,                 /* suffix */
 346   NULL,                 /* domain */
 347   NULL,                 /* address_retry_key */
 348   NULL,                 /* domain_retry_key */
 349   NULL,                 /* current_dir */
 350   NULL,                 /* home_dir */
 351   NULL,                 /* message */
 352   NULL,                 /* user_message */
 353   NULL,                 /* onetime_parent */
 354   NULL,                 /* pipe_expandn */
 355   NULL,                 /* return_filename */
 356   NULL,                 /* self_hostname */
 357   NULL,                 /* shadow_message */
 358 #ifdef SUPPORT_TLS
 359   NULL,                 /* cipher */
 360   NULL,                 /* ourcert */
 361   NULL,                 /* peercert */
 362   NULL,                 /* peerdn */
 363   OCSP_NOT_REQ,         /* ocsp */
 364 #endif
 365 #ifdef EXPERIMENTAL_DSN_INFO
 366   NULL,                 /* smtp_greeting */
 367   NULL,                 /* helo_response */
 368 #endif
 369   NULL,                 /* authenticator */
 370   NULL,                 /* auth_id */
 371   NULL,                 /* auth_sndr */
 372   NULL,                 /* dsn_orcpt */
 373   0,                    /* dsn_flags */
 374   0,                    /* dsn_aware */
 375   (uid_t)(-1),          /* uid */
 376   (gid_t)(-1),          /* gid */
 377   0,                    /* flags */
 378   { 0 },                /* domain_cache - any larger array should be zeroed */
 379   { 0 },                /* localpart_cache - ditto */
 380   -1,                   /* mode */
 381   0,                    /* more_errno */
 382   ERRNO_UNKNOWNERROR,   /* basic_errno */
 383   0,                    /* child_count */
 384   -1,                   /* return_file */
 385   SPECIAL_NONE,         /* special_action */
 386   DEFER,                /* transport_return */
 387   {                     /* fields that are propagated to children */
 388     NULL,               /* address_data */
 389     NULL,               /* domain_data */
 390     NULL,               /* localpart_data */
 391     NULL,               /* errors_address */
 392     NULL,               /* extra_headers */
 393     NULL,               /* remove_headers */
 394 #ifdef EXPERIMENTAL_SRS
 395     NULL,               /* srs_sender */
 396 #endif
 397 #ifdef SUPPORT_I18N
 398     FALSE,              /* utf8 */
 399 #endif
 400   }
 401 };
 402
 403 uschar *address_file           = NULL;
 404 uschar *address_pipe           = NULL;
 405 BOOL    address_test_mode      = FALSE;
 406 tree_node *addresslist_anchor  = NULL;
 407 int     addresslist_count      = 0;
 408 gid_t  *admin_groups           = NULL;
 409 BOOL    admin_user             = FALSE;
 410 BOOL    allow_auth_unadvertised= FALSE;
 411 BOOL    allow_domain_literals  = FALSE;
 412 BOOL    allow_mx_to_ip         = FALSE;
 413 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 414 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 415 BOOL    allow_utf8_domains     = FALSE;
 416 uschar *authenticated_fail_id  = NULL;
 417 uschar *authenticated_id       = NULL;
 418 uschar *authenticated_sender   = NULL;
 419 BOOL    authentication_failed  = FALSE;
 420 auth_instance  *auths          = NULL;
 421 uschar *auth_advertise_hosts   = US"*";
 422 auth_instance auth_defaults    = {
 423     NULL,                      /* chain pointer */
 424     NULL,                      /* name */
 425     NULL,                      /* info */
 426     NULL,                      /* private options block pointer */
 427     NULL,                      /* driver_name */
 428     NULL,                      /* advertise_condition */
 429     NULL,                      /* client_condition */
 430     NULL,                      /* public_name */
 431     NULL,                      /* set_id */
 432     NULL,                      /* set_client_id */
 433     NULL,                      /* server_mail_auth_condition */
 434     NULL,                      /* server_debug_string */
 435     NULL,                      /* server_condition */
 436     FALSE,                     /* client */
 437     FALSE,                     /* server */
 438     FALSE                      /* advertised */
 439 };
 440
 441 uschar *auth_defer_msg         = US"reason not recorded";
 442 uschar *auth_defer_user_msg    = US"";
 443 uschar *auth_vars[AUTH_VARS];
 444 int     auto_thaw              = 0;
 445 #ifdef WITH_CONTENT_SCAN
 446 BOOL    av_failed              = FALSE;
 447 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 448 #endif
 449
 450 BOOL    background_daemon      = TRUE;
 451
 452 #if BASE_62 == 62
 453 uschar *base62_chars=
 454     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 455 #else
 456 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 457 #endif
 458
 459 uschar *bi_command             = NULL;
 460 uschar *big_buffer             = NULL;
 461 int     big_buffer_size        = BIG_BUFFER_SIZE;
 462 #ifdef EXPERIMENTAL_BRIGHTMAIL
 463 uschar *bmi_alt_location       = NULL;
 464 uschar *bmi_base64_tracker_verdict = NULL;
 465 uschar *bmi_base64_verdict     = NULL;
 466 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 467 int     bmi_deliver            = 1;
 468 int     bmi_run                = 0;
 469 uschar *bmi_verdicts           = NULL;
 470 #endif
 471 int     body_8bitmime          = 0;
 472 int     body_linecount         = 0;
 473 int     body_zerocount         = 0;
 474 uschar *bounce_message_file    = NULL;
 475 uschar *bounce_message_text    = NULL;
 476 uschar *bounce_recipient       = NULL;
 477 BOOL    bounce_return_body     = TRUE;
 478 int     bounce_return_linesize_limit = 998;
 479 BOOL    bounce_return_message  = TRUE;
 480 int     bounce_return_size_limit = 100*1024;
 481 uschar *bounce_sender_authentication = NULL;
 482 int     bsmtp_transaction_linecount = 0;
 483
 484 uschar *callout_address        = NULL;
 485 int     callout_cache_domain_positive_expire = 7*24*60*60;
 486 int     callout_cache_domain_negative_expire = 3*60*60;
 487 int     callout_cache_positive_expire = 24*60*60;
 488 int     callout_cache_negative_expire = 2*60*60;
 489 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 490 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 491 int     check_log_inodes       = 100;
 492 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 493 BOOL    check_rfc2047_length   = TRUE;
 494 int     check_spool_inodes     = 100;
 495 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 496
 497 uschar *chunking_advertise_hosts = US"*";
 498 unsigned chunking_datasize     = 0;
 499 unsigned chunking_data_left    = 0;
 500 BOOL    chunking_offered       = FALSE;
 501 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 502 const pcre *regex_CHUNKING     = NULL;
 503
 504 uschar *client_authenticator   = NULL;
 505 uschar *client_authenticated_id = NULL;
 506 uschar *client_authenticated_sender = NULL;
 507 int     clmacro_count          = 0;
 508 uschar *clmacros[MAX_CLMACROS];
 509 BOOL    config_changed         = FALSE;
 510 FILE   *config_file            = NULL;
 511 uschar *config_filename        = NULL;
 512 int     config_lineno          = 0;
 513 #ifdef CONFIGURE_GROUP
 514 gid_t   config_gid             = CONFIGURE_GROUP;
 515 #endif
 516 uschar *config_main_filelist   = US CONFIGURE_FILE
 517                          "\0<-----------Space to patch configure_filename->";
 518 uschar *config_main_filename   = NULL;
 519 uschar *config_main_directory  = NULL;
 520
 521 #ifdef CONFIGURE_OWNER
 522 uid_t   config_uid             = CONFIGURE_OWNER;
 523 #endif
 524
 525 int     connection_max_messages= -1;
 526 uschar *continue_hostname      = NULL;
 527 uschar *continue_host_address  = NULL;
 528 BOOL    continue_more          = FALSE;
 529 int     continue_sequence      = 1;
 530 uschar *continue_transport     = NULL;
 531
 532 uschar *csa_status             = NULL;
 533 cut_t   cutthrough = {
 534   FALSE,                                /* delivery: when to attempt */
 535   FALSE,                                /* on defer: spool locally */
 536   -1,                                   /* fd: open connection */
 537   0,                                    /* nrcpt: number of addresses */
 538 };
 539
 540 BOOL    daemon_listen          = FALSE;
 541 uschar *daemon_smtp_port       = US"smtp";
 542 int     daemon_startup_retries = 9;
 543 int     daemon_startup_sleep   = 30;
 544
 545 #ifdef EXPERIMENTAL_DCC
 546 BOOL    dcc_direct_add_header  = FALSE;
 547 uschar *dcc_header             = NULL;
 548 uschar *dcc_result             = NULL;
 549 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 550 uschar *dccifd_options         = US"header";
 551 #endif
 552
 553 BOOL    debug_daemon           = FALSE;
 554 int     debug_fd               = -1;
 555 FILE   *debug_file             = NULL;
 556 int     debug_notall[]         = {
 557   Di_memory,
 558   -1
 559 };
 560 bit_table debug_options[]      = { /* must be in alphabetical order */
 561   BIT_TABLE(D, acl),
 562   BIT_TABLE(D, all),
 563   BIT_TABLE(D, auth),
 564   BIT_TABLE(D, deliver),
 565   BIT_TABLE(D, dns),
 566   BIT_TABLE(D, dnsbl),
 567   BIT_TABLE(D, exec),
 568   BIT_TABLE(D, expand),
 569   BIT_TABLE(D, filter),
 570   BIT_TABLE(D, hints_lookup),
 571   BIT_TABLE(D, host_lookup),
 572   BIT_TABLE(D, ident),
 573   BIT_TABLE(D, interface),
 574   BIT_TABLE(D, lists),
 575   BIT_TABLE(D, load),
 576   BIT_TABLE(D, local_scan),
 577   BIT_TABLE(D, lookup),
 578   BIT_TABLE(D, memory),
 579   BIT_TABLE(D, pid),
 580   BIT_TABLE(D, process_info),
 581   BIT_TABLE(D, queue_run),
 582   BIT_TABLE(D, receive),
 583   BIT_TABLE(D, resolver),
 584   BIT_TABLE(D, retry),
 585   BIT_TABLE(D, rewrite),
 586   BIT_TABLE(D, route),
 587   BIT_TABLE(D, timestamp),
 588   BIT_TABLE(D, tls),
 589   BIT_TABLE(D, transport),
 590   BIT_TABLE(D, uid),
 591   BIT_TABLE(D, verify),
 592 };
 593 int     debug_options_count    = nelem(debug_options);
 594
 595 unsigned int debug_selector    = 0;
 596 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 597 uschar *delay_warning_condition=
 598   US"${if or {"
 599             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 600             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 601             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 602             "} {no}{yes}}";
 603 BOOL    delivery_date_remove   = TRUE;
 604 uschar *deliver_address_data   = NULL;
 605 int     deliver_datafile       = -1;
 606 const uschar *deliver_domain   = NULL;
 607 uschar *deliver_domain_data    = NULL;
 608 const uschar *deliver_domain_orig = NULL;
 609 const uschar *deliver_domain_parent = NULL;
 610 BOOL    deliver_drop_privilege = FALSE;
 611 BOOL    deliver_firsttime      = FALSE;
 612 BOOL    deliver_force          = FALSE;
 613 BOOL    deliver_freeze         = FALSE;
 614 time_t  deliver_frozen_at      = 0;
 615 uschar *deliver_home           = NULL;
 616 const uschar *deliver_host     = NULL;
 617 const uschar *deliver_host_address = NULL;
 618 int     deliver_host_port      = 0;
 619 uschar *deliver_in_buffer      = NULL;
 620 ino_t   deliver_inode          = 0;
 621 uschar *deliver_localpart      = NULL;
 622 uschar *deliver_localpart_data = NULL;
 623 uschar *deliver_localpart_orig = NULL;
 624 uschar *deliver_localpart_parent = NULL;
 625 uschar *deliver_localpart_prefix = NULL;
 626 uschar *deliver_localpart_suffix = NULL;
 627 BOOL    deliver_force_thaw     = FALSE;
 628 BOOL    deliver_manual_thaw    = FALSE;
 629 uschar *deliver_out_buffer     = NULL;
 630 int     deliver_queue_load_max = -1;
 631 address_item  *deliver_recipients = NULL;
 632 uschar *deliver_selectstring   = NULL;
 633 BOOL    deliver_selectstring_regex = FALSE;
 634 uschar *deliver_selectstring_sender = NULL;
 635 BOOL    deliver_selectstring_sender_regex = FALSE;
 636 BOOL    disable_callout_flush  = FALSE;
 637 BOOL    disable_delay_flush    = FALSE;
 638 #ifdef ENABLE_DISABLE_FSYNC
 639 BOOL    disable_fsync          = FALSE;
 640 #endif
 641 BOOL    disable_ipv6           = FALSE;
 642 BOOL    disable_logging        = FALSE;
 643
 644 #ifndef DISABLE_DKIM
 645 BOOL    dkim_collect_input       = FALSE;
 646 uschar *dkim_cur_signer          = NULL;
 647 BOOL    dkim_disable_verify      = FALSE;
 648 int     dkim_key_length          = 0;
 649 uschar *dkim_signers             = NULL;
 650 uschar *dkim_signing_domain      = NULL;
 651 uschar *dkim_signing_selector    = NULL;
 652 uschar *dkim_verify_signers      = US"$dkim_signers";
 653 #endif
 654 #ifdef EXPERIMENTAL_DMARC
 655 BOOL    dmarc_has_been_checked  = FALSE;
 656 uschar *dmarc_ar_header         = NULL;
 657 uschar *dmarc_domain_policy     = NULL;
 658 uschar *dmarc_forensic_sender   = NULL;
 659 uschar *dmarc_history_file      = NULL;
 660 uschar *dmarc_status            = NULL;
 661 uschar *dmarc_status_text       = NULL;
 662 uschar *dmarc_tld_file          = NULL;
 663 uschar *dmarc_used_domain       = NULL;
 664 BOOL    dmarc_disable_verify    = FALSE;
 665 BOOL    dmarc_enable_forensic   = FALSE;
 666 #endif
 667
 668 uschar *dns_again_means_nonexist = NULL;
 669 int     dns_csa_search_limit   = 5;
 670 BOOL    dns_csa_use_reverse    = TRUE;
 671 #ifdef EXPERIMENTAL_DANE
 672 int     dns_dane_ok            = -1;
 673 #endif
 674 uschar *dns_ipv4_lookup        = NULL;
 675 int     dns_retrans            = 0;
 676 int     dns_retry              = 0;
 677 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 678 uschar *dns_trust_aa           = NULL;
 679 int     dns_use_edns0          = -1; /* <0 = not coerced */
 680 uschar *dnslist_domain         = NULL;
 681 uschar *dnslist_matched        = NULL;
 682 uschar *dnslist_text           = NULL;
 683 uschar *dnslist_value          = NULL;
 684 tree_node *domainlist_anchor   = NULL;
 685 int     domainlist_count       = 0;
 686 BOOL    dont_deliver           = FALSE;
 687 BOOL    dot_ends               = TRUE;
 688 BOOL    drop_cr                = FALSE;         /* No longer used */
 689 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 690
 691 BOOL    enable_dollar_recipients = FALSE;
 692 BOOL    envelope_to_remove     = TRUE;
 693 int     errno_quota            = ERRNO_QUOTA;
 694 uschar *errors_copy            = NULL;
 695 int     error_handling         = ERRORS_SENDER;
 696 uschar *errors_reply_to        = NULL;
 697 int     errors_sender_rc       = EXIT_FAILURE;
 698 #ifndef DISABLE_EVENT
 699 uschar *event_action             = NULL;        /* expansion for delivery events */
 700 uschar *event_data               = NULL;        /* auxilary data variable for event */
 701 int     event_defer_errno        = 0;
 702 const uschar *event_name         = NULL;        /* event name variable */
 703 #endif
 704
 705
 706 gid_t   exim_gid               = EXIM_GID;
 707 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 708 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 709                         "\0<---------------Space to patch exim_path->";
 710 uid_t   exim_uid               = EXIM_UID;
 711 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 712 int     expand_forbid          = 0;
 713 int     expand_nlength[EXPAND_MAXN+1];
 714 int     expand_nmax            = -1;
 715 uschar *expand_nstring[EXPAND_MAXN+1];
 716 BOOL    expand_string_forcedfail = FALSE;
 717 uschar *expand_string_message;
 718 BOOL    extract_addresses_remove_arguments = TRUE;
 719 uschar *extra_local_interfaces = NULL;
 720
 721 int     fake_response          = OK;
 722 uschar *fake_response_text     = US"Your message has been rejected but is "
 723                                    "being kept for evaluation.\nIf it was a "
 724                                    "legitimate message, it may still be "
 725                                    "delivered to the target recipient(s).";
 726 int     filter_n[FILTER_VARIABLE_COUNT];
 727 BOOL    filter_running         = FALSE;
 728 int     filter_sn[FILTER_VARIABLE_COUNT];
 729 int     filter_test            = FTEST_NONE;
 730 uschar *filter_test_sfile      = NULL;
 731 uschar *filter_test_ufile      = NULL;
 732 uschar *filter_thisaddress     = NULL;
 733 int     finduser_retries       = 0;
 734 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 735 uschar *freeze_tell            = NULL;
 736 uschar *freeze_tell_config     = NULL;
 737 uschar *fudged_queue_times     = US"";
 738
 739 uschar *gecos_name             = NULL;
 740 uschar *gecos_pattern          = NULL;
 741 rewrite_rule  *global_rewrite_rules = NULL;
 742
 743 uschar *headers_charset        = US HEADERS_CHARSET;
 744 int     header_insert_maxlen   = 64 * 1024;
 745 header_line  *header_last      = NULL;
 746 header_line  *header_list      = NULL;
 747 int     header_maxsize         = HEADER_MAXSIZE;
 748 int     header_line_maxsize    = 0;
 749
 750 header_name header_names[] = {
 751   { US"bcc",            3, TRUE,  htype_bcc },
 752   { US"cc",             2, TRUE,  htype_cc },
 753   { US"date",           4, TRUE,  htype_date },
 754   { US"delivery-date", 13, FALSE, htype_delivery_date },
 755   { US"envelope-to",   11, FALSE, htype_envelope_to },
 756   { US"from",           4, TRUE,  htype_from },
 757   { US"message-id",    10, TRUE,  htype_id },
 758   { US"received",       8, FALSE, htype_received },
 759   { US"reply-to",       8, FALSE, htype_reply_to },
 760   { US"return-path",   11, FALSE, htype_return_path },
 761   { US"sender",         6, TRUE,  htype_sender },
 762   { US"subject",        7, FALSE, htype_subject },
 763   { US"to",             2, TRUE,  htype_to }
 764 };
 765
 766 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 767
 768 BOOL    header_rewritten       = FALSE;
 769 uschar *helo_accept_junk_hosts = NULL;
 770 uschar *helo_allow_chars       = US"";
 771 uschar *helo_lookup_domains    = US"@ : @[]";
 772 uschar *helo_try_verify_hosts  = NULL;
 773 BOOL    helo_verified          = FALSE;
 774 BOOL    helo_verify_failed     = FALSE;
 775 uschar *helo_verify_hosts      = NULL;
 776 const uschar *hex_digits       = CUS"0123456789abcdef";
 777 uschar *hold_domains           = NULL;
 778 BOOL    host_checking          = FALSE;
 779 BOOL    host_checking_callout  = FALSE;
 780 uschar *host_data              = NULL;
 781 BOOL    host_find_failed_syntax= FALSE;
 782 uschar *host_lookup            = NULL;
 783 BOOL    host_lookup_deferred   = FALSE;
 784 BOOL    host_lookup_failed     = FALSE;
 785 uschar *host_lookup_order      = US"bydns:byaddr";
 786 uschar *host_lookup_msg        = US"";
 787 int     host_number            = 0;
 788 uschar *host_number_string     = NULL;
 789 uschar *host_reject_connection = NULL;
 790 tree_node *hostlist_anchor     = NULL;
 791 int     hostlist_count         = 0;
 792 uschar *hosts_treat_as_local   = NULL;
 793 uschar *hosts_connection_nolog = NULL;
 794
 795 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 796 BOOL    ignore_fromline_local  = FALSE;
 797 uschar *ignore_fromline_hosts  = NULL;
 798 BOOL    inetd_wait_mode        = FALSE;
 799 int     inetd_wait_timeout     = -1;
 800 uschar *initial_cwd            = NULL;
 801 uschar *interface_address      = NULL;
 802 int     interface_port         = -1;
 803 BOOL    is_inetd               = FALSE;
 804 uschar *iterate_item           = NULL;
 805
 806 int     journal_fd             = -1;
 807
 808 uschar *keep_environment       = NULL;
 809
 810 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 811
 812 uschar *eldap_dn               = NULL;
 813 int     load_average           = -2;
 814 BOOL    local_error_message    = FALSE;
 815 BOOL    local_from_check       = TRUE;
 816 uschar *local_from_prefix      = NULL;
 817 uschar *local_from_suffix      = NULL;
 818
 819 #if HAVE_IPV6
 820 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 821 #else
 822 uschar *local_interfaces       = US"0.0.0.0";
 823 #endif
 824
 825 uschar *local_scan_data        = NULL;
 826 int     local_scan_timeout     = 5*60;
 827 BOOL    local_sender_retain    = FALSE;
 828 gid_t   local_user_gid         = (gid_t)(-1);
 829 uid_t   local_user_uid         = (uid_t)(-1);
 830
 831 tree_node *localpartlist_anchor= NULL;
 832 int     localpartlist_count    = 0;
 833 uschar *log_buffer             = NULL;
 834
 835 int     log_default[]          = { /* for initializing log_selector */
 836   Li_acl_warn_skipped,
 837   Li_connection_reject,
 838   Li_delay_delivery,
 839   Li_dnslist_defer,
 840   Li_etrn,
 841   Li_host_lookup_failed,
 842   Li_lost_incoming_connection,
 843   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 844   Li_queue_run,
 845   Li_rejected_header,
 846   Li_retry_defer,
 847   Li_sender_verify_fail,
 848   Li_size_reject,
 849   Li_skip_delivery,
 850   Li_smtp_confirmation,
 851   Li_tls_certificate_verified,
 852   Li_tls_cipher,
 853   -1
 854 };
 855
 856 uschar *log_file_path          = US LOG_FILE_PATH
 857                            "\0<--------------Space to patch log_file_path->";
 858
 859 int     log_notall[]           = {
 860   -1
 861 };
 862 bit_table log_options[]        = { /* must be in alphabetical order */
 863   BIT_TABLE(L, 8bitmime),
 864   BIT_TABLE(L, acl_warn_skipped),
 865   BIT_TABLE(L, address_rewrite),
 866   BIT_TABLE(L, all),
 867   BIT_TABLE(L, all_parents),
 868   BIT_TABLE(L, arguments),
 869   BIT_TABLE(L, connection_reject),
 870   BIT_TABLE(L, delay_delivery),
 871   BIT_TABLE(L, deliver_time),
 872   BIT_TABLE(L, delivery_size),
 873   BIT_TABLE(L, dnslist_defer),
 874   BIT_TABLE(L, dnssec),
 875   BIT_TABLE(L, etrn),
 876   BIT_TABLE(L, host_lookup_failed),
 877   BIT_TABLE(L, ident_timeout),
 878   BIT_TABLE(L, incoming_interface),
 879   BIT_TABLE(L, incoming_port),
 880   BIT_TABLE(L, lost_incoming_connection),
 881   BIT_TABLE(L, outgoing_interface),
 882   BIT_TABLE(L, outgoing_port),
 883   BIT_TABLE(L, pid),
 884 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 885   BIT_TABLE(L, proxy),
 886 #endif
 887   BIT_TABLE(L, queue_run),
 888   BIT_TABLE(L, queue_time),
 889   BIT_TABLE(L, queue_time_overall),
 890   BIT_TABLE(L, received_recipients),
 891   BIT_TABLE(L, received_sender),
 892   BIT_TABLE(L, rejected_header),
 893   { US"rejected_headers", Li_rejected_header },
 894   BIT_TABLE(L, retry_defer),
 895   BIT_TABLE(L, return_path_on_delivery),
 896   BIT_TABLE(L, sender_on_delivery),
 897   BIT_TABLE(L, sender_verify_fail),
 898   BIT_TABLE(L, size_reject),
 899   BIT_TABLE(L, skip_delivery),
 900   BIT_TABLE(L, smtp_confirmation),
 901   BIT_TABLE(L, smtp_connection),
 902   BIT_TABLE(L, smtp_incomplete_transaction),
 903   BIT_TABLE(L, smtp_mailauth),
 904   BIT_TABLE(L, smtp_no_mail),
 905   BIT_TABLE(L, smtp_protocol_error),
 906   BIT_TABLE(L, smtp_syntax_error),
 907   BIT_TABLE(L, subject),
 908   BIT_TABLE(L, tls_certificate_verified),
 909   BIT_TABLE(L, tls_cipher),
 910   BIT_TABLE(L, tls_peerdn),
 911   BIT_TABLE(L, tls_sni),
 912   BIT_TABLE(L, unknown_in_list),
 913 };
 914 int     log_options_count      = nelem(log_options);
 915
 916 int     log_reject_target      = 0;
 917 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 918 uschar *log_selector_string    = NULL;
 919 FILE   *log_stderr             = NULL;
 920 BOOL    log_testing_mode       = FALSE;
 921 BOOL    log_timezone           = FALSE;
 922 uschar *login_sender_address   = NULL;
 923 uschar *lookup_dnssec_authenticated = NULL;
 924 int     lookup_open_max        = 25;
 925 uschar *lookup_value           = NULL;
 926
 927 macro_item  *macros            = NULL;
 928 macro_item  *mlast             = NULL;
 929 BOOL    macros_builtin_created = FALSE;
 930 uschar *mailstore_basename     = NULL;
 931 #ifdef WITH_CONTENT_SCAN
 932 uschar *malware_name           = NULL;  /* Virus Name */
 933 #endif
 934 int     max_received_linelength= 0;
 935 int     max_username_length    = 0;
 936 int     message_age            = 0;
 937 uschar *message_body           = NULL;
 938 uschar *message_body_end       = NULL;
 939 BOOL    message_body_newlines  = FALSE;
 940 int     message_body_size      = 0;
 941 int     message_body_visible   = 500;
 942 int     message_ended          = END_NOTSTARTED;
 943 uschar *message_headers        = NULL;
 944 uschar *message_id;
 945 uschar *message_id_domain      = NULL;
 946 uschar *message_id_text        = NULL;
 947 struct timeval message_id_tv   = { 0, 0 };
 948 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 949 uschar *message_id_external;
 950 int     message_linecount      = 0;
 951 BOOL    message_logs           = TRUE;
 952 int     message_size           = 0;
 953 uschar *message_size_limit     = US"50M";
 954 #ifdef SUPPORT_I18N
 955 BOOL    message_smtputf8       = FALSE;
 956 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 957 #endif
 958 uschar  message_subdir[2]      = { 0, 0 };
 959 uschar *message_reference      = NULL;
 960
 961 /* MIME ACL expandables */
 962 #ifdef WITH_CONTENT_SCAN
 963 int     mime_anomaly_level     = 0;
 964 const uschar *mime_anomaly_text      = NULL;
 965 uschar *mime_boundary          = NULL;
 966 uschar *mime_charset           = NULL;
 967 uschar *mime_content_description = NULL;
 968 uschar *mime_content_disposition = NULL;
 969 uschar *mime_content_id        = NULL;
 970 unsigned int mime_content_size = 0;
 971 uschar *mime_content_transfer_encoding = NULL;
 972 uschar *mime_content_type      = NULL;
 973 uschar *mime_decoded_filename  = NULL;
 974 uschar *mime_filename          = NULL;
 975 int     mime_is_multipart      = 0;
 976 int     mime_is_coverletter    = 0;
 977 int     mime_is_rfc822         = 0;
 978 int     mime_part_count        = -1;
 979 #endif
 980
 981 BOOL    mua_wrapper            = FALSE;
 982
 983 uid_t  *never_users            = NULL;
 984 #ifdef WITH_CONTENT_SCAN
 985 BOOL    no_mbox_unspool        = FALSE;
 986 #endif
 987 BOOL    no_multiline_responses = FALSE;
 988
 989 uid_t   original_euid;
 990 gid_t   originator_gid;
 991 uschar *originator_login       = NULL;
 992 uschar *originator_name        = NULL;
 993 uid_t   originator_uid;
 994 uschar *override_local_interfaces = NULL;
 995 uschar *override_pid_file_path = NULL;
 996
 997 BOOL    parse_allow_group      = FALSE;
 998 BOOL    parse_found_group      = FALSE;
 999 uschar *percent_hack_domains   = NULL;
1000 uschar *pid_file_path          = US PID_FILE_PATH
1001                            "\0<--------------Space to patch pid_file_path->";
1002 BOOL    pipelining_enable      = TRUE;
1003 uschar *pipelining_advertise_hosts = US"*";
1004 BOOL    preserve_message_logs  = FALSE;
1005 uschar *primary_hostname       = NULL;
1006 BOOL    print_topbitchars      = FALSE;
1007 uschar  process_info[PROCESS_INFO_SIZE];
1008 int     process_info_len       = 0;
1009 uschar *process_log_path       = NULL;
1010 BOOL    prod_requires_admin    = TRUE;
1011
1012 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1013 uschar *hosts_proxy            = US"";
1014 uschar *proxy_external_address = US"";
1015 int     proxy_external_port    = 0;
1016 uschar *proxy_local_address    = US"";
1017 int     proxy_local_port       = 0;
1018 BOOL    proxy_session          = FALSE;
1019 BOOL    proxy_session_failed   = FALSE;
1020 #endif
1021
1022 uschar *prvscheck_address      = NULL;
1023 uschar *prvscheck_keynum       = NULL;
1024 uschar *prvscheck_result       = NULL;
1025
1026
1027 const uschar *qualify_domain_recipient = NULL;
1028 uschar *qualify_domain_sender  = NULL;
1029 BOOL    queue_2stage           = FALSE;
1030 uschar *queue_domains          = NULL;
1031 int     queue_interval         = -1;
1032 BOOL    queue_list_requires_admin = TRUE;
1033 uschar *queue_name             = US"";
1034 BOOL    queue_only             = FALSE;
1035 uschar *queue_only_file        = NULL;
1036 int     queue_only_load        = -1;
1037 BOOL    queue_only_load_latch  = TRUE;
1038 BOOL    queue_only_override    = TRUE;
1039 BOOL    queue_only_policy      = FALSE;
1040 BOOL    queue_run_first_delivery = FALSE;
1041 BOOL    queue_run_force        = FALSE;
1042 BOOL    queue_run_in_order     = FALSE;
1043 BOOL    queue_run_local        = FALSE;
1044 uschar *queue_run_max          = US"5";
1045 pid_t   queue_run_pid          = (pid_t)0;
1046 int     queue_run_pipe         = -1;
1047 BOOL    queue_running          = FALSE;
1048 BOOL    queue_smtp             = FALSE;
1049 uschar *queue_smtp_domains     = NULL;
1050
1051 unsigned int random_seed       = 0;
1052 tree_node *ratelimiters_cmd    = NULL;
1053 tree_node *ratelimiters_conn   = NULL;
1054 tree_node *ratelimiters_mail   = NULL;
1055 uschar *raw_active_hostname    = NULL;
1056 uschar *raw_sender             = NULL;
1057 uschar **raw_recipients        = NULL;
1058 int     raw_recipients_count   = 0;
1059
1060 int     rcpt_count             = 0;
1061 int     rcpt_fail_count        = 0;
1062 int     rcpt_defer_count       = 0;
1063 gid_t   real_gid;
1064 uid_t   real_uid;
1065 BOOL    really_exim            = TRUE;
1066 BOOL    receive_call_bombout   = FALSE;
1067 int     receive_linecount      = 0;
1068 int     receive_messagecount   = 0;
1069 int     receive_timeout        = 0;
1070 int     received_count         = 0;
1071 uschar *received_for           = NULL;
1072
1073 /*  This is the default text for Received headers generated by Exim. The
1074 date  will be automatically added on the end. */
1075
1076 uschar *received_header_text   = US
1077      "Received: "
1078      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1079      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1080      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1081      "by $primary_hostname "
1082      "${if def:received_protocol {with $received_protocol}} "
1083      #ifdef SUPPORT_TLS
1084      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1085      #endif
1086      "(Exim $version_number)\n\t"
1087      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1088      "id $message_exim_id"
1089      "${if def:received_for {\n\tfor $received_for}}"
1090      "\0<---------------Space to patch received_header_text->";
1091
1092 int     received_headers_max   = 30;
1093 uschar *received_protocol      = NULL;
1094 int     received_time          = 0;
1095 uschar *recipient_data         = NULL;
1096 uschar *recipient_unqualified_hosts = NULL;
1097 uschar *recipient_verify_failure = NULL;
1098 int     recipients_count       = 0;
1099 BOOL    recipients_discarded   = FALSE;
1100 recipient_item  *recipients_list = NULL;
1101 int     recipients_list_max    = 0;
1102 int     recipients_max         = 0;
1103 BOOL    recipients_max_reject  = FALSE;
1104 const pcre *regex_AUTH         = NULL;
1105 const pcre *regex_check_dns_names = NULL;
1106 const pcre *regex_From         = NULL;
1107 const pcre *regex_IGNOREQUOTA  = NULL;
1108 const pcre *regex_PIPELINING   = NULL;
1109 const pcre *regex_SIZE         = NULL;
1110 const pcre *regex_ismsgid      = NULL;
1111 const pcre *regex_smtp_code    = NULL;
1112 uschar *regex_vars[REGEX_VARS];
1113 #ifdef WHITELIST_D_MACROS
1114 const pcre *regex_whitelisted_macro = NULL;
1115 #endif
1116 #ifdef WITH_CONTENT_SCAN
1117 uschar *regex_match_string     = NULL;
1118 #endif
1119 int     remote_delivery_count  = 0;
1120 int     remote_max_parallel    = 2;
1121 uschar *remote_sort_domains    = NULL;
1122 int     retry_data_expire      = 7*24*60*60;
1123 int     retry_interval_max     = 24*60*60;
1124 int     retry_maximum_timeout  = 0;        /* set from retry config */
1125 retry_config  *retries         = NULL;
1126 uschar *return_path            = NULL;
1127 BOOL    return_path_remove     = TRUE;
1128 int     rewrite_existflags     = 0;
1129 uschar *rfc1413_hosts          = US"@[]";
1130 int     rfc1413_query_timeout  = 0;
1131 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1132 uid_t   root_gid               = ROOT_GID;
1133 uid_t   root_uid               = ROOT_UID;
1134
1135 router_instance  *routers  = NULL;
1136 router_instance  router_defaults = {
1137     NULL,                      /* chain pointer */
1138     NULL,                      /* name */
1139     NULL,                      /* info */
1140     NULL,                      /* private options block pointer */
1141     NULL,                      /* driver name */
1142
1143     NULL,                      /* address_data */
1144 #ifdef EXPERIMENTAL_BRIGHTMAIL
1145     NULL,                      /* bmi_rule */
1146 #endif
1147     NULL,                      /* cannot_route_message */
1148     NULL,                      /* condition */
1149     NULL,                      /* current_directory */
1150     NULL,                      /* debug_string */
1151     NULL,                      /* domains */
1152     NULL,                      /* errors_to */
1153     NULL,                      /* expand_gid */
1154     NULL,                      /* expand_uid */
1155     NULL,                      /* expand_more */
1156     NULL,                      /* expand_unseen */
1157     NULL,                      /* extra_headers */
1158     NULL,                      /* fallback_hosts */
1159     NULL,                      /* home_directory */
1160     NULL,                      /* ignore_target_hosts */
1161     NULL,                      /* local_parts */
1162     NULL,                      /* pass_router_name */
1163     NULL,                      /* prefix */
1164     NULL,                      /* redirect_router_name */
1165     NULL,                      /* remove_headers */
1166     NULL,                      /* require_files */
1167     NULL,                      /* router_home_directory */
1168     US"freeze",                /* self */
1169     NULL,                      /* senders */
1170     NULL,                      /* suffix */
1171     NULL,                      /* translate_ip_address */
1172     NULL,                      /* transport_name */
1173
1174     TRUE,                      /* address_test */
1175 #ifdef EXPERIMENTAL_BRIGHTMAIL
1176     FALSE,                     /* bmi_deliver_alternate */
1177     FALSE,                     /* bmi_deliver_default */
1178     FALSE,                     /* bmi_dont_deliver */
1179 #endif
1180     TRUE,                      /* expn */
1181     FALSE,                     /* caseful_local_part */
1182     FALSE,                     /* check_local_user */
1183     FALSE,                     /* disable_logging */
1184     FALSE,                     /* fail_verify_recipient */
1185     FALSE,                     /* fail_verify_sender */
1186     FALSE,                     /* gid_set */
1187     FALSE,                     /* initgroups */
1188     TRUE_UNSET,                /* log_as_local */
1189     TRUE,                      /* more */
1190     FALSE,                     /* pass_on_timeout */
1191     FALSE,                     /* prefix_optional */
1192     TRUE,                      /* repeat_use */
1193     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1194     FALSE,                     /* same_domain_copy_routing */
1195     FALSE,                     /* self_rewrite */
1196     FALSE,                     /* suffix_optional */
1197     FALSE,                     /* verify_only */
1198     TRUE,                      /* verify_recipient */
1199     TRUE,                      /* verify_sender */
1200     FALSE,                     /* uid_set */
1201     FALSE,                     /* unseen */
1202     FALSE,                     /* dsn_lasthop */
1203
1204     self_freeze,               /* self_code */
1205     (uid_t)(-1),               /* uid */
1206     (gid_t)(-1),               /* gid */
1207
1208     NULL,                      /* fallback_hostlist */
1209     NULL,                      /* transport instance */
1210     NULL,                      /* pass_router */
1211     NULL,                      /* redirect_router */
1212
1213     { NULL, NULL },            /* dnssec_domains {require,request} */
1214 };
1215
1216 uschar *router_name            = NULL;
1217
1218 ip_address_item *running_interfaces = NULL;
1219 BOOL    running_in_test_harness = FALSE;
1220
1221 /* This is a weird one. The following string gets patched in the binary by the
1222 script that sets up a copy of Exim for running in the test harness. It seems
1223 that compilers are now clever, and share constant strings if they can.
1224 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1225 make use of the end of this string in order to save space. So the patching then
1226 wrecks this. We defeat this optimization by adding some additional characters
1227 onto the end of the string. */
1228
1229 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1230
1231 int     runrc                  = 0;
1232
1233 uschar *search_error_message   = NULL;
1234 BOOL    search_find_defer      = FALSE;
1235 uschar *self_hostname          = NULL;
1236 uschar *sender_address         = NULL;
1237 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1238 uschar *sender_address_data    = NULL;
1239 BOOL    sender_address_forced  = FALSE;
1240 uschar *sender_address_unrewritten = NULL;
1241 uschar *sender_data            = NULL;
1242 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1243 uschar *sender_fullhost        = NULL;
1244 BOOL    sender_helo_dnssec     = FALSE;
1245 uschar *sender_helo_name       = NULL;
1246 uschar **sender_host_aliases   = &no_aliases;
1247 uschar *sender_host_address    = NULL;
1248 uschar *sender_host_authenticated = NULL;
1249 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1250 BOOL    sender_host_dnssec     = FALSE;
1251 uschar *sender_host_name       = NULL;
1252 int     sender_host_port       = 0;
1253 BOOL    sender_host_notsocket  = FALSE;
1254 BOOL    sender_host_unknown    = FALSE;
1255 uschar *sender_ident           = NULL;
1256 BOOL    sender_local           = FALSE;
1257 BOOL    sender_name_forced     = FALSE;
1258 uschar *sender_rate            = NULL;
1259 uschar *sender_rate_limit      = NULL;
1260 uschar *sender_rate_period     = NULL;
1261 uschar *sender_rcvhost         = NULL;
1262 BOOL    sender_set_untrusted   = FALSE;
1263 uschar *sender_unqualified_hosts = NULL;
1264 uschar *sender_verify_failure = NULL;
1265 address_item *sender_verified_list  = NULL;
1266 address_item *sender_verified_failed = NULL;
1267 int     sender_verified_rc     = -1;
1268 BOOL    sender_verified_responded = FALSE;
1269 uschar *sending_ip_address     = NULL;
1270 int     sending_port           = -1;
1271 SIGNAL_BOOL sigalrm_seen       = FALSE;
1272 uschar **sighup_argv           = NULL;
1273 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1274 int     smtp_accept_count      = 0;
1275 BOOL    smtp_accept_keepalive  = TRUE;
1276 int     smtp_accept_max        = 20;
1277 int     smtp_accept_max_nonmail= 10;
1278 uschar *smtp_accept_max_nonmail_hosts = US"*";
1279 int     smtp_accept_max_per_connection = 1000;
1280 uschar *smtp_accept_max_per_host = NULL;
1281 int     smtp_accept_queue      = 0;
1282 int     smtp_accept_queue_per_connection = 10;
1283 int     smtp_accept_reserve    = 0;
1284 uschar *smtp_active_hostname   = NULL;
1285 BOOL    smtp_authenticated     = FALSE;
1286 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1287                              "Exim $version_number $tod_full"
1288                              "\0<---------------Space to patch smtp_banner->";
1289 BOOL    smtp_batched_input     = FALSE;
1290 BOOL    smtp_check_spool_space = TRUE;
1291 int     smtp_ch_index          = 0;
1292 uschar *smtp_cmd_argument      = NULL;
1293 uschar *smtp_cmd_buffer        = NULL;
1294 time_t  smtp_connection_start  = 0;
1295 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1296 int     smtp_connect_backlog   = 20;
1297 double  smtp_delay_mail        = 0.0;
1298 double  smtp_delay_rcpt        = 0.0;
1299 BOOL    smtp_enforce_sync      = TRUE;
1300 FILE   *smtp_in                = NULL;
1301 BOOL    smtp_input             = FALSE;
1302 int     smtp_load_reserve      = -1;
1303 int     smtp_mailcmd_count     = 0;
1304 FILE   *smtp_out               = NULL;
1305 uschar *smtp_etrn_command      = NULL;
1306 BOOL    smtp_etrn_serialize    = TRUE;
1307 int     smtp_max_synprot_errors= 3;
1308 int     smtp_max_unknown_commands = 3;
1309 uschar *smtp_notquit_reason    = NULL;
1310 uschar *smtp_ratelimit_hosts   = NULL;
1311 uschar *smtp_ratelimit_mail    = NULL;
1312 uschar *smtp_ratelimit_rcpt    = NULL;
1313 uschar *smtp_read_error        = US"";
1314 int     smtp_receive_timeout   = 5*60;
1315 uschar *smtp_receive_timeout_s = NULL;
1316 uschar *smtp_reserve_hosts     = NULL;
1317 BOOL    smtp_return_error_details = FALSE;
1318 int     smtp_rlm_base          = 0;
1319 double  smtp_rlm_factor        = 0.0;
1320 int     smtp_rlm_limit         = 0;
1321 int     smtp_rlm_threshold     = INT_MAX;
1322 int     smtp_rlr_base          = 0;
1323 double  smtp_rlr_factor        = 0.0;
1324 int     smtp_rlr_limit         = 0;
1325 int     smtp_rlr_threshold     = INT_MAX;
1326 unsigned smtp_peer_options     = 0;
1327 unsigned smtp_peer_options_wrap= 0;
1328 #ifdef SUPPORT_I18N
1329 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1330 #endif
1331
1332 #ifdef WITH_CONTENT_SCAN
1333 uschar *spamd_address          = US"127.0.0.1 783";
1334 uschar *spam_bar               = NULL;
1335 uschar *spam_report            = NULL;
1336 uschar *spam_action            = NULL;
1337 uschar *spam_score             = NULL;
1338 uschar *spam_score_int         = NULL;
1339 #endif
1340 #ifdef EXPERIMENTAL_SPF
1341 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1342 uschar *spf_header_comment     = NULL;
1343 uschar *spf_received           = NULL;
1344 uschar *spf_result             = NULL;
1345 uschar *spf_smtp_comment       = NULL;
1346 #endif
1347
1348 BOOL    split_spool_directory  = FALSE;
1349 uschar *spool_directory        = US SPOOL_DIRECTORY
1350                            "\0<--------------Space to patch spool_directory->";
1351 #ifdef EXPERIMENTAL_SRS
1352 uschar *srs_config             = NULL;
1353 uschar *srs_db_address         = NULL;
1354 uschar *srs_db_key             = NULL;
1355 int     srs_hashlength         = 6;
1356 int     srs_hashmin            = -1;
1357 int     srs_maxage             = 31;
1358 uschar *srs_orig_recipient     = NULL;
1359 uschar *srs_orig_sender        = NULL;
1360 uschar *srs_recipient          = NULL;
1361 uschar *srs_secrets            = NULL;
1362 uschar *srs_status             = NULL;
1363 BOOL    srs_usehash            = TRUE;
1364 BOOL    srs_usetimestamp       = TRUE;
1365 #endif
1366 BOOL    strict_acl_vars        = FALSE;
1367 int     string_datestamp_offset= -1;
1368 int     string_datestamp_length= 0;
1369 int     string_datestamp_type  = -1;
1370 BOOL    strip_excess_angle_brackets = FALSE;
1371 BOOL    strip_trailing_dot     = FALSE;
1372 uschar *submission_domain      = NULL;
1373 BOOL    submission_mode        = FALSE;
1374 uschar *submission_name        = NULL;
1375 BOOL    suppress_local_fixups  = FALSE;
1376 BOOL    suppress_local_fixups_default = FALSE;
1377 BOOL    synchronous_delivery   = FALSE;
1378 BOOL    syslog_duplication     = TRUE;
1379 int     syslog_facility        = LOG_MAIL;
1380 uschar *syslog_processname     = US"exim";
1381 BOOL    syslog_timestamp       = TRUE;
1382 uschar *system_filter          = NULL;
1383
1384 uschar *system_filter_directory_transport = NULL;
1385 uschar *system_filter_file_transport = NULL;
1386 uschar *system_filter_pipe_transport = NULL;
1387 uschar *system_filter_reply_transport = NULL;
1388
1389 gid_t   system_filter_gid      = 0;
1390 BOOL    system_filter_gid_set  = FALSE;
1391 uid_t   system_filter_uid      = (uid_t)-1;
1392 BOOL    system_filter_uid_set  = FALSE;
1393 BOOL    system_filtering       = FALSE;
1394
1395 BOOL    tcp_nodelay            = TRUE;
1396 #ifdef USE_TCP_WRAPPERS
1397 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1398 #endif
1399 int     test_harness_load_avg  = 0;
1400 int     thismessage_size_limit = 0;
1401 int     timeout_frozen_after   = 0;
1402 BOOL    timestamps_utc         = FALSE;
1403
1404 transport_instance  *transports = NULL;
1405
1406 transport_instance  transport_defaults = {
1407     NULL,                     /* chain pointer */
1408     NULL,                     /* name */
1409     NULL,                     /* info */
1410     NULL,                     /* private options block pointer */
1411     NULL,                     /* driver name */
1412     NULL,                     /* setup entry point */
1413     1,                        /* batch_max */
1414     NULL,                     /* batch_id */
1415     NULL,                     /* home_dir */
1416     NULL,                     /* current_dir */
1417     NULL,                     /* expand-multi-domain */
1418     TRUE,                     /* multi-domain */
1419     FALSE,                    /* overrides_hosts */
1420     100,                      /* max_addresses */
1421     500,                      /* connection_max_messages */
1422     FALSE,                    /* deliver_as_creator */
1423     FALSE,                    /* disable_logging */
1424     FALSE,                    /* initgroups */
1425     FALSE,                    /* uid_set */
1426     FALSE,                    /* gid_set */
1427     (uid_t)(-1),              /* uid */
1428     (gid_t)(-1),              /* gid */
1429     NULL,                     /* expand_uid */
1430     NULL,                     /* expand_gid */
1431     NULL,                     /* warn_message */
1432     NULL,                     /* shadow */
1433     NULL,                     /* shadow_condition */
1434     NULL,                     /* filter_command */
1435     NULL,                     /* add_headers */
1436     NULL,                     /* remove_headers */
1437     NULL,                     /* return_path */
1438     NULL,                     /* debug_string */
1439     NULL,                     /* max_parallel */
1440     NULL,                     /* message_size_limit */
1441     NULL,                     /* headers_rewrite */
1442     NULL,                     /* rewrite_rules */
1443     0,                        /* rewrite_existflags */
1444     300,                      /* filter_timeout */
1445     FALSE,                    /* body_only */
1446     FALSE,                    /* delivery_date_add */
1447     FALSE,                    /* envelope_to_add */
1448     FALSE,                    /* headers_only */
1449     FALSE,                    /* rcpt_include_affixes */
1450     FALSE,                    /* return_path_add */
1451     FALSE,                    /* return_output */
1452     FALSE,                    /* return_fail_output */
1453     FALSE,                    /* log_output */
1454     FALSE,                    /* log_fail_output */
1455     FALSE,                    /* log_defer_output */
1456     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1457                                  1 nor 0 so can detect unset */
1458 #ifndef DISABLE_EVENT
1459    ,NULL                      /* event_action */
1460 #endif
1461 };
1462
1463 int     transport_count;
1464 uschar *transport_name          = NULL;
1465 int     transport_newlines;
1466 const uschar **transport_filter_argv  = NULL;
1467 int     transport_filter_timeout;
1468 BOOL    transport_filter_timed_out = FALSE;
1469 int     transport_write_timeout= 0;
1470
1471 tree_node  *tree_dns_fails     = NULL;
1472 tree_node  *tree_duplicates    = NULL;
1473 tree_node  *tree_nonrecipients = NULL;
1474 tree_node  *tree_unusable      = NULL;
1475
1476 BOOL    trusted_caller         = FALSE;
1477 BOOL    trusted_config         = TRUE;
1478 gid_t  *trusted_groups         = NULL;
1479 uid_t  *trusted_users          = NULL;
1480 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1481
1482 uschar *unknown_login          = NULL;
1483 uschar *unknown_username       = NULL;
1484 uschar *untrusted_set_sender   = NULL;
1485
1486 /*  A regex for matching a "From_" line in an incoming message, in the form
1487
1488     From ph10 Fri Jan  5 12:35 GMT 1996
1489
1490 which  the "mail" commands send to the MTA (undocumented, of course), or in
1491 the  form
1492
1493     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1494
1495 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1496 Because  of variations in time formats, just match up to the minutes. That
1497 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1498 so  just require one digit for hours and minutes. The weekday is also absent
1499 in  some forms. */
1500
1501 uschar *uucp_from_pattern      = US
1502    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1503    "(?:"                                          /* Non-extracting bracket */
1504    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1505    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1506    ")"                                            /* End alternation */
1507    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1508
1509 uschar *uucp_from_sender       = US"$1";
1510
1511 uschar *verify_mode            = NULL;
1512 uschar *version_copyright      =
1513  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1514    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1515 uschar *version_date           = US"?";
1516 uschar *version_cnumber        = US"????";
1517 uschar *version_string         = US"?";
1518
1519 uschar *warn_message_file      = NULL;
1520 int     warning_count          = 0;
1521 uschar *warnmsg_delay          = NULL;
1522 uschar *warnmsg_recipients     = NULL;
1523 BOOL    write_rejectlog        = TRUE;
1524
1525
1526 /*  End of globals.c */