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     bsmtp_transaction_linecount = 0;
 474 int     body_8bitmime          = 0;
 475 int     body_linecount         = 0;
 476 int     body_zerocount         = 0;
 477 uschar *bounce_message_file    = NULL;
 478 uschar *bounce_message_text    = NULL;
 479 uschar *bounce_recipient       = NULL;
 480 BOOL    bounce_return_body     = TRUE;
 481 int     bounce_return_linesize_limit = 998;
 482 BOOL    bounce_return_message  = TRUE;
 483 int     bounce_return_size_limit = 100*1024;
 484 uschar *bounce_sender_authentication = NULL;
 485 uschar *builtin_macros_create_trigger = NULL;
 486
 487 uschar *callout_address        = NULL;
 488 int     callout_cache_domain_positive_expire = 7*24*60*60;
 489 int     callout_cache_domain_negative_expire = 3*60*60;
 490 int     callout_cache_positive_expire = 24*60*60;
 491 int     callout_cache_negative_expire = 2*60*60;
 492 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 493 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 494 int     check_log_inodes       = 100;
 495 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 496 BOOL    check_rfc2047_length   = TRUE;
 497 int     check_spool_inodes     = 100;
 498 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 499
 500 uschar *chunking_advertise_hosts = US"*";
 501 unsigned chunking_datasize     = 0;
 502 unsigned chunking_data_left    = 0;
 503 BOOL    chunking_offered       = FALSE;
 504 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 505 const pcre *regex_CHUNKING     = NULL;
 506
 507 uschar *client_authenticator   = NULL;
 508 uschar *client_authenticated_id = NULL;
 509 uschar *client_authenticated_sender = NULL;
 510 int     clmacro_count          = 0;
 511 uschar *clmacros[MAX_CLMACROS];
 512 BOOL    config_changed         = FALSE;
 513 FILE   *config_file            = NULL;
 514 const uschar *config_filename  = NULL;
 515 int     config_lineno          = 0;
 516 #ifdef CONFIGURE_GROUP
 517 gid_t   config_gid             = CONFIGURE_GROUP;
 518 #else
 519 gid_t   config_gid             = 0;
 520 #endif
 521 uschar *config_main_filelist   = US CONFIGURE_FILE
 522                          "\0<-----------Space to patch configure_filename->";
 523 uschar *config_main_filename   = NULL;
 524 uschar *config_main_directory  = NULL;
 525
 526 #ifdef CONFIGURE_OWNER
 527 uid_t   config_uid             = CONFIGURE_OWNER;
 528 #else
 529 uid_t   config_uid             = 0;
 530 #endif
 531
 532 int     connection_max_messages= -1;
 533 uschar *continue_proxy_cipher  = NULL;
 534 uschar *continue_hostname      = NULL;
 535 uschar *continue_host_address  = NULL;
 536 BOOL    continue_more          = FALSE;
 537 int     continue_sequence      = 1;
 538 uschar *continue_transport     = NULL;
 539
 540 uschar *csa_status             = NULL;
 541 cut_t   cutthrough = {
 542   FALSE,                                /* verify-only: normal delivery */
 543   FALSE,                                /* delivery: when to attempt */
 544   FALSE,                                /* on defer: spool locally */
 545   FALSE,                                /* not a TLS conn yet */
 546   -1,                                   /* fd: open connection */
 547   0,                                    /* nrcpt: number of addresses */
 548 };
 549
 550 BOOL    daemon_listen          = FALSE;
 551 uschar *daemon_smtp_port       = US"smtp";
 552 int     daemon_startup_retries = 9;
 553 int     daemon_startup_sleep   = 30;
 554
 555 #ifdef EXPERIMENTAL_DCC
 556 BOOL    dcc_direct_add_header  = FALSE;
 557 uschar *dcc_header             = NULL;
 558 uschar *dcc_result             = NULL;
 559 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 560 uschar *dccifd_options         = US"header";
 561 #endif
 562
 563 BOOL    debug_daemon           = FALSE;
 564 int     debug_fd               = -1;
 565 FILE   *debug_file             = NULL;
 566 int     debug_notall[]         = {
 567   Di_memory,
 568   -1
 569 };
 570 bit_table debug_options[]      = { /* must be in alphabetical order */
 571   BIT_TABLE(D, acl),
 572   BIT_TABLE(D, all),
 573   BIT_TABLE(D, auth),
 574   BIT_TABLE(D, deliver),
 575   BIT_TABLE(D, dns),
 576   BIT_TABLE(D, dnsbl),
 577   BIT_TABLE(D, exec),
 578   BIT_TABLE(D, expand),
 579   BIT_TABLE(D, filter),
 580   BIT_TABLE(D, hints_lookup),
 581   BIT_TABLE(D, host_lookup),
 582   BIT_TABLE(D, ident),
 583   BIT_TABLE(D, interface),
 584   BIT_TABLE(D, lists),
 585   BIT_TABLE(D, load),
 586   BIT_TABLE(D, local_scan),
 587   BIT_TABLE(D, lookup),
 588   BIT_TABLE(D, memory),
 589   BIT_TABLE(D, pid),
 590   BIT_TABLE(D, process_info),
 591   BIT_TABLE(D, queue_run),
 592   BIT_TABLE(D, receive),
 593   BIT_TABLE(D, resolver),
 594   BIT_TABLE(D, retry),
 595   BIT_TABLE(D, rewrite),
 596   BIT_TABLE(D, route),
 597   BIT_TABLE(D, timestamp),
 598   BIT_TABLE(D, tls),
 599   BIT_TABLE(D, transport),
 600   BIT_TABLE(D, uid),
 601   BIT_TABLE(D, verify),
 602 };
 603 int     debug_options_count    = nelem(debug_options);
 604
 605 unsigned int debug_selector    = 0;
 606 BOOL    debug_store            = FALSE;
 607 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 608 uschar *delay_warning_condition=
 609   US"${if or {"
 610             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 611             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 612             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 613             "} {no}{yes}}";
 614 BOOL    delivery_date_remove   = TRUE;
 615 uschar *deliver_address_data   = NULL;
 616 int     deliver_datafile       = -1;
 617 const uschar *deliver_domain   = NULL;
 618 uschar *deliver_domain_data    = NULL;
 619 const uschar *deliver_domain_orig = NULL;
 620 const uschar *deliver_domain_parent = NULL;
 621 BOOL    deliver_drop_privilege = FALSE;
 622 BOOL    deliver_firsttime      = FALSE;
 623 BOOL    deliver_force          = FALSE;
 624 BOOL    deliver_freeze         = FALSE;
 625 time_t  deliver_frozen_at      = 0;
 626 uschar *deliver_home           = NULL;
 627 const uschar *deliver_host     = NULL;
 628 const uschar *deliver_host_address = NULL;
 629 int     deliver_host_port      = 0;
 630 uschar *deliver_in_buffer      = NULL;
 631 ino_t   deliver_inode          = 0;
 632 uschar *deliver_localpart      = NULL;
 633 uschar *deliver_localpart_data = NULL;
 634 uschar *deliver_localpart_orig = NULL;
 635 uschar *deliver_localpart_parent = NULL;
 636 uschar *deliver_localpart_prefix = NULL;
 637 uschar *deliver_localpart_suffix = NULL;
 638 BOOL    deliver_force_thaw     = FALSE;
 639 BOOL    deliver_manual_thaw    = FALSE;
 640 uschar *deliver_out_buffer     = NULL;
 641 int     deliver_queue_load_max = -1;
 642 address_item  *deliver_recipients = NULL;
 643 uschar *deliver_selectstring   = NULL;
 644 BOOL    deliver_selectstring_regex = FALSE;
 645 uschar *deliver_selectstring_sender = NULL;
 646 BOOL    deliver_selectstring_sender_regex = FALSE;
 647 BOOL    disable_callout_flush  = FALSE;
 648 BOOL    disable_delay_flush    = FALSE;
 649 #ifdef ENABLE_DISABLE_FSYNC
 650 BOOL    disable_fsync          = FALSE;
 651 #endif
 652 BOOL    disable_ipv6           = FALSE;
 653 BOOL    disable_logging        = FALSE;
 654
 655 #ifndef DISABLE_DKIM
 656 BOOL    dkim_collect_input       = FALSE;
 657 uschar *dkim_cur_signer          = NULL;
 658 BOOL    dkim_disable_verify      = FALSE;
 659 int     dkim_key_length          = 0;
 660 uschar *dkim_signers             = NULL;
 661 uschar *dkim_signing_domain      = NULL;
 662 uschar *dkim_signing_selector    = NULL;
 663 uschar *dkim_verify_signers      = US"$dkim_signers";
 664 #endif
 665 #ifdef EXPERIMENTAL_DMARC
 666 BOOL    dmarc_has_been_checked  = FALSE;
 667 uschar *dmarc_ar_header         = NULL;
 668 uschar *dmarc_domain_policy     = NULL;
 669 uschar *dmarc_forensic_sender   = NULL;
 670 uschar *dmarc_history_file      = NULL;
 671 uschar *dmarc_status            = NULL;
 672 uschar *dmarc_status_text       = NULL;
 673 uschar *dmarc_tld_file          = NULL;
 674 uschar *dmarc_used_domain       = NULL;
 675 BOOL    dmarc_disable_verify    = FALSE;
 676 BOOL    dmarc_enable_forensic   = FALSE;
 677 #endif
 678
 679 uschar *dns_again_means_nonexist = NULL;
 680 int     dns_csa_search_limit   = 5;
 681 BOOL    dns_csa_use_reverse    = TRUE;
 682 #ifdef EXPERIMENTAL_DANE
 683 int     dns_dane_ok            = -1;
 684 #endif
 685 uschar *dns_ipv4_lookup        = NULL;
 686 int     dns_retrans            = 0;
 687 int     dns_retry              = 0;
 688 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 689 uschar *dns_trust_aa           = NULL;
 690 int     dns_use_edns0          = -1; /* <0 = not coerced */
 691 uschar *dnslist_domain         = NULL;
 692 uschar *dnslist_matched        = NULL;
 693 uschar *dnslist_text           = NULL;
 694 uschar *dnslist_value          = NULL;
 695 tree_node *domainlist_anchor   = NULL;
 696 int     domainlist_count       = 0;
 697 BOOL    dont_deliver           = FALSE;
 698 BOOL    dot_ends               = TRUE;
 699 BOOL    drop_cr                = FALSE;         /* No longer used */
 700 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 701
 702 BOOL    enable_dollar_recipients = FALSE;
 703 BOOL    envelope_to_remove     = TRUE;
 704 int     errno_quota            = ERRNO_QUOTA;
 705 uschar *errors_copy            = NULL;
 706 int     error_handling         = ERRORS_SENDER;
 707 uschar *errors_reply_to        = NULL;
 708 int     errors_sender_rc       = EXIT_FAILURE;
 709 #ifndef DISABLE_EVENT
 710 uschar *event_action             = NULL;        /* expansion for delivery events */
 711 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 712 int     event_defer_errno        = 0;
 713 const uschar *event_name         = NULL;        /* event name variable */
 714 #endif
 715
 716
 717 gid_t   exim_gid               = EXIM_GID;
 718 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 719 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 720                         "\0<---------------Space to patch exim_path->";
 721 uid_t   exim_uid               = EXIM_UID;
 722 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 723 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 724 int     expand_forbid          = 0;
 725 int     expand_nlength[EXPAND_MAXN+1];
 726 int     expand_nmax            = -1;
 727 uschar *expand_nstring[EXPAND_MAXN+1];
 728 BOOL    expand_string_forcedfail = FALSE;
 729 uschar *expand_string_message;
 730 BOOL    extract_addresses_remove_arguments = TRUE;
 731 uschar *extra_local_interfaces = NULL;
 732
 733 int     fake_response          = OK;
 734 uschar *fake_response_text     = US"Your message has been rejected but is "
 735                                    "being kept for evaluation.\nIf it was a "
 736                                    "legitimate message, it may still be "
 737                                    "delivered to the target recipient(s).";
 738 int     filter_n[FILTER_VARIABLE_COUNT];
 739 BOOL    filter_running         = FALSE;
 740 int     filter_sn[FILTER_VARIABLE_COUNT];
 741 int     filter_test            = FTEST_NONE;
 742 uschar *filter_test_sfile      = NULL;
 743 uschar *filter_test_ufile      = NULL;
 744 uschar *filter_thisaddress     = NULL;
 745 int     finduser_retries       = 0;
 746 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 747 uschar *freeze_tell            = NULL;
 748 uschar *freeze_tell_config     = NULL;
 749 uschar *fudged_queue_times     = US"";
 750
 751 uschar *gecos_name             = NULL;
 752 uschar *gecos_pattern          = NULL;
 753 rewrite_rule  *global_rewrite_rules = NULL;
 754
 755 uschar *headers_charset        = US HEADERS_CHARSET;
 756 int     header_insert_maxlen   = 64 * 1024;
 757 header_line  *header_last      = NULL;
 758 header_line  *header_list      = NULL;
 759 int     header_maxsize         = HEADER_MAXSIZE;
 760 int     header_line_maxsize    = 0;
 761
 762 header_name header_names[] = {
 763   { US"bcc",            3, TRUE,  htype_bcc },
 764   { US"cc",             2, TRUE,  htype_cc },
 765   { US"date",           4, TRUE,  htype_date },
 766   { US"delivery-date", 13, FALSE, htype_delivery_date },
 767   { US"envelope-to",   11, FALSE, htype_envelope_to },
 768   { US"from",           4, TRUE,  htype_from },
 769   { US"message-id",    10, TRUE,  htype_id },
 770   { US"received",       8, FALSE, htype_received },
 771   { US"reply-to",       8, FALSE, htype_reply_to },
 772   { US"return-path",   11, FALSE, htype_return_path },
 773   { US"sender",         6, TRUE,  htype_sender },
 774   { US"subject",        7, FALSE, htype_subject },
 775   { US"to",             2, TRUE,  htype_to }
 776 };
 777
 778 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 779
 780 BOOL    header_rewritten       = FALSE;
 781 uschar *helo_accept_junk_hosts = NULL;
 782 uschar *helo_allow_chars       = US"";
 783 uschar *helo_lookup_domains    = US"@ : @[]";
 784 uschar *helo_try_verify_hosts  = NULL;
 785 BOOL    helo_verified          = FALSE;
 786 BOOL    helo_verify_failed     = FALSE;
 787 uschar *helo_verify_hosts      = NULL;
 788 const uschar *hex_digits       = CUS"0123456789abcdef";
 789 uschar *hold_domains           = NULL;
 790 BOOL    host_checking          = FALSE;
 791 BOOL    host_checking_callout  = FALSE;
 792 uschar *host_data              = NULL;
 793 BOOL    host_find_failed_syntax= FALSE;
 794 uschar *host_lookup            = NULL;
 795 BOOL    host_lookup_deferred   = FALSE;
 796 BOOL    host_lookup_failed     = FALSE;
 797 uschar *host_lookup_order      = US"bydns:byaddr";
 798 uschar *host_lookup_msg        = US"";
 799 int     host_number            = 0;
 800 uschar *host_number_string     = NULL;
 801 uschar *host_reject_connection = NULL;
 802 tree_node *hostlist_anchor     = NULL;
 803 int     hostlist_count         = 0;
 804 uschar *hosts_treat_as_local   = NULL;
 805 uschar *hosts_connection_nolog = NULL;
 806
 807 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 808 BOOL    ignore_fromline_local  = FALSE;
 809 uschar *ignore_fromline_hosts  = NULL;
 810 BOOL    inetd_wait_mode        = FALSE;
 811 int     inetd_wait_timeout     = -1;
 812 uschar *initial_cwd            = NULL;
 813 uschar *interface_address      = NULL;
 814 int     interface_port         = -1;
 815 BOOL    is_inetd               = FALSE;
 816 uschar *iterate_item           = NULL;
 817
 818 int     journal_fd             = -1;
 819
 820 uschar *keep_environment       = NULL;
 821
 822 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 823
 824 uschar *eldap_dn               = NULL;
 825 int     load_average           = -2;
 826 BOOL    local_error_message    = FALSE;
 827 BOOL    local_from_check       = TRUE;
 828 uschar *local_from_prefix      = NULL;
 829 uschar *local_from_suffix      = NULL;
 830
 831 #if HAVE_IPV6
 832 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 833 #else
 834 uschar *local_interfaces       = US"0.0.0.0";
 835 #endif
 836
 837 uschar *local_scan_data        = NULL;
 838 int     local_scan_timeout     = 5*60;
 839 BOOL    local_sender_retain    = FALSE;
 840 gid_t   local_user_gid         = (gid_t)(-1);
 841 uid_t   local_user_uid         = (uid_t)(-1);
 842
 843 tree_node *localpartlist_anchor= NULL;
 844 int     localpartlist_count    = 0;
 845 uschar *log_buffer             = NULL;
 846
 847 int     log_default[]          = { /* for initializing log_selector */
 848   Li_acl_warn_skipped,
 849   Li_connection_reject,
 850   Li_delay_delivery,
 851   Li_dnslist_defer,
 852   Li_etrn,
 853   Li_host_lookup_failed,
 854   Li_lost_incoming_connection,
 855   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 856   Li_queue_run,
 857   Li_rejected_header,
 858   Li_retry_defer,
 859   Li_sender_verify_fail,
 860   Li_size_reject,
 861   Li_skip_delivery,
 862   Li_smtp_confirmation,
 863   Li_tls_certificate_verified,
 864   Li_tls_cipher,
 865   -1
 866 };
 867
 868 uschar *log_file_path          = US LOG_FILE_PATH
 869                            "\0<--------------Space to patch log_file_path->";
 870
 871 int     log_notall[]           = {
 872   -1
 873 };
 874 bit_table log_options[]        = { /* must be in alphabetical order */
 875   BIT_TABLE(L, 8bitmime),
 876   BIT_TABLE(L, acl_warn_skipped),
 877   BIT_TABLE(L, address_rewrite),
 878   BIT_TABLE(L, all),
 879   BIT_TABLE(L, all_parents),
 880   BIT_TABLE(L, arguments),
 881   BIT_TABLE(L, connection_reject),
 882   BIT_TABLE(L, delay_delivery),
 883   BIT_TABLE(L, deliver_time),
 884   BIT_TABLE(L, delivery_size),
 885   BIT_TABLE(L, dnslist_defer),
 886   BIT_TABLE(L, dnssec),
 887   BIT_TABLE(L, etrn),
 888   BIT_TABLE(L, host_lookup_failed),
 889   BIT_TABLE(L, ident_timeout),
 890   BIT_TABLE(L, incoming_interface),
 891   BIT_TABLE(L, incoming_port),
 892   BIT_TABLE(L, lost_incoming_connection),
 893   BIT_TABLE(L, outgoing_interface),
 894   BIT_TABLE(L, outgoing_port),
 895   BIT_TABLE(L, pid),
 896 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 897   BIT_TABLE(L, proxy),
 898 #endif
 899   BIT_TABLE(L, queue_run),
 900   BIT_TABLE(L, queue_time),
 901   BIT_TABLE(L, queue_time_overall),
 902   BIT_TABLE(L, received_recipients),
 903   BIT_TABLE(L, received_sender),
 904   BIT_TABLE(L, rejected_header),
 905   { US"rejected_headers", Li_rejected_header },
 906   BIT_TABLE(L, retry_defer),
 907   BIT_TABLE(L, return_path_on_delivery),
 908   BIT_TABLE(L, sender_on_delivery),
 909   BIT_TABLE(L, sender_verify_fail),
 910   BIT_TABLE(L, size_reject),
 911   BIT_TABLE(L, skip_delivery),
 912   BIT_TABLE(L, smtp_confirmation),
 913   BIT_TABLE(L, smtp_connection),
 914   BIT_TABLE(L, smtp_incomplete_transaction),
 915   BIT_TABLE(L, smtp_mailauth),
 916   BIT_TABLE(L, smtp_no_mail),
 917   BIT_TABLE(L, smtp_protocol_error),
 918   BIT_TABLE(L, smtp_syntax_error),
 919   BIT_TABLE(L, subject),
 920   BIT_TABLE(L, tls_certificate_verified),
 921   BIT_TABLE(L, tls_cipher),
 922   BIT_TABLE(L, tls_peerdn),
 923   BIT_TABLE(L, tls_sni),
 924   BIT_TABLE(L, unknown_in_list),
 925 };
 926 int     log_options_count      = nelem(log_options);
 927
 928 int     log_reject_target      = 0;
 929 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 930 uschar *log_selector_string    = NULL;
 931 FILE   *log_stderr             = NULL;
 932 BOOL    log_testing_mode       = FALSE;
 933 BOOL    log_timezone           = FALSE;
 934 uschar *login_sender_address   = NULL;
 935 uschar *lookup_dnssec_authenticated = NULL;
 936 int     lookup_open_max        = 25;
 937 uschar *lookup_value           = NULL;
 938
 939 macro_item  *macros            = NULL;
 940 macro_item  *mlast             = NULL;
 941 BOOL    macros_builtin_created = FALSE;
 942 uschar *mailstore_basename     = NULL;
 943 #ifdef WITH_CONTENT_SCAN
 944 uschar *malware_name           = NULL;  /* Virus Name */
 945 #endif
 946 int     max_received_linelength= 0;
 947 int     max_username_length    = 0;
 948 int     message_age            = 0;
 949 uschar *message_body           = NULL;
 950 uschar *message_body_end       = NULL;
 951 BOOL    message_body_newlines  = FALSE;
 952 int     message_body_size      = 0;
 953 int     message_body_visible   = 500;
 954 int     message_ended          = END_NOTSTARTED;
 955 uschar *message_headers        = NULL;
 956 uschar *message_id;
 957 uschar *message_id_domain      = NULL;
 958 uschar *message_id_text        = NULL;
 959 struct timeval message_id_tv   = { 0, 0 };
 960 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 961 uschar *message_id_external;
 962 int     message_linecount      = 0;
 963 BOOL    message_logs           = TRUE;
 964 int     message_size           = 0;
 965 uschar *message_size_limit     = US"50M";
 966 #ifdef SUPPORT_I18N
 967 BOOL    message_smtputf8       = FALSE;
 968 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 969 #endif
 970 uschar  message_subdir[2]      = { 0, 0 };
 971 uschar *message_reference      = NULL;
 972
 973 /* MIME ACL expandables */
 974 #ifdef WITH_CONTENT_SCAN
 975 int     mime_anomaly_level     = 0;
 976 const uschar *mime_anomaly_text      = NULL;
 977 uschar *mime_boundary          = NULL;
 978 uschar *mime_charset           = NULL;
 979 uschar *mime_content_description = NULL;
 980 uschar *mime_content_disposition = NULL;
 981 uschar *mime_content_id        = NULL;
 982 unsigned int mime_content_size = 0;
 983 uschar *mime_content_transfer_encoding = NULL;
 984 uschar *mime_content_type      = NULL;
 985 uschar *mime_decoded_filename  = NULL;
 986 uschar *mime_filename          = NULL;
 987 int     mime_is_multipart      = 0;
 988 int     mime_is_coverletter    = 0;
 989 int     mime_is_rfc822         = 0;
 990 int     mime_part_count        = -1;
 991 #endif
 992
 993 BOOL    mua_wrapper            = FALSE;
 994
 995 uid_t  *never_users            = NULL;
 996 #ifdef WITH_CONTENT_SCAN
 997 BOOL    no_mbox_unspool        = FALSE;
 998 #endif
 999 BOOL    no_multiline_responses = FALSE;
1000
1001 const int on                   = 1;     /* for setsockopt */
1002 const int off                  = 0;
1003
1004 uid_t   original_euid;
1005 gid_t   originator_gid;
1006 uschar *originator_login       = NULL;
1007 uschar *originator_name        = NULL;
1008 uid_t   originator_uid;
1009 uschar *override_local_interfaces = NULL;
1010 uschar *override_pid_file_path = NULL;
1011
1012 BOOL    parse_allow_group      = FALSE;
1013 BOOL    parse_found_group      = FALSE;
1014 uschar *percent_hack_domains   = NULL;
1015 uschar *pid_file_path          = US PID_FILE_PATH
1016                            "\0<--------------Space to patch pid_file_path->";
1017 BOOL    pipelining_enable      = TRUE;
1018 uschar *pipelining_advertise_hosts = US"*";
1019 BOOL    preserve_message_logs  = FALSE;
1020 uschar *primary_hostname       = NULL;
1021 BOOL    print_topbitchars      = FALSE;
1022 uschar  process_info[PROCESS_INFO_SIZE];
1023 int     process_info_len       = 0;
1024 uschar *process_log_path       = NULL;
1025 BOOL    prod_requires_admin    = TRUE;
1026
1027 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1028 uschar *hosts_proxy            = US"";
1029 uschar *proxy_external_address = US"";
1030 int     proxy_external_port    = 0;
1031 uschar *proxy_local_address    = US"";
1032 int     proxy_local_port       = 0;
1033 BOOL    proxy_session          = FALSE;
1034 BOOL    proxy_session_failed   = FALSE;
1035 #endif
1036
1037 uschar *prvscheck_address      = NULL;
1038 uschar *prvscheck_keynum       = NULL;
1039 uschar *prvscheck_result       = NULL;
1040
1041
1042 const uschar *qualify_domain_recipient = NULL;
1043 uschar *qualify_domain_sender  = NULL;
1044 BOOL    queue_2stage           = FALSE;
1045 uschar *queue_domains          = NULL;
1046 int     queue_interval         = -1;
1047 BOOL    queue_list_requires_admin = TRUE;
1048 uschar *queue_name             = US"";
1049 BOOL    queue_only             = FALSE;
1050 uschar *queue_only_file        = NULL;
1051 int     queue_only_load        = -1;
1052 BOOL    queue_only_load_latch  = TRUE;
1053 BOOL    queue_only_override    = TRUE;
1054 BOOL    queue_only_policy      = FALSE;
1055 BOOL    queue_run_first_delivery = FALSE;
1056 BOOL    queue_run_force        = FALSE;
1057 BOOL    queue_run_in_order     = FALSE;
1058 BOOL    queue_run_local        = FALSE;
1059 uschar *queue_run_max          = US"5";
1060 pid_t   queue_run_pid          = (pid_t)0;
1061 int     queue_run_pipe         = -1;
1062 BOOL    queue_running          = FALSE;
1063 BOOL    queue_smtp             = FALSE;
1064 uschar *queue_smtp_domains     = NULL;
1065
1066 unsigned int random_seed       = 0;
1067 tree_node *ratelimiters_cmd    = NULL;
1068 tree_node *ratelimiters_conn   = NULL;
1069 tree_node *ratelimiters_mail   = NULL;
1070 uschar *raw_active_hostname    = NULL;
1071 uschar *raw_sender             = NULL;
1072 uschar **raw_recipients        = NULL;
1073 int     raw_recipients_count   = 0;
1074
1075 int     rcpt_count             = 0;
1076 int     rcpt_fail_count        = 0;
1077 int     rcpt_defer_count       = 0;
1078 gid_t   real_gid;
1079 uid_t   real_uid;
1080 BOOL    really_exim            = TRUE;
1081 BOOL    receive_call_bombout   = FALSE;
1082 int     receive_linecount      = 0;
1083 int     receive_messagecount   = 0;
1084 int     receive_timeout        = 0;
1085 int     received_count         = 0;
1086 uschar *received_for           = NULL;
1087
1088 /*  This is the default text for Received headers generated by Exim. The
1089 date  will be automatically added on the end. */
1090
1091 uschar *received_header_text   = US
1092      "Received: "
1093      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1094      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1095      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1096      "by $primary_hostname "
1097      "${if def:received_protocol {with $received_protocol}} "
1098      #ifdef SUPPORT_TLS
1099      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1100      #endif
1101      "(Exim $version_number)\n\t"
1102      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1103      "id $message_exim_id"
1104      "${if def:received_for {\n\tfor $received_for}}"
1105      "\0<---------------Space to patch received_header_text->";
1106
1107 int     received_headers_max   = 30;
1108 uschar *received_protocol      = NULL;
1109 int     received_time          = 0;
1110 uschar *recipient_data         = NULL;
1111 uschar *recipient_unqualified_hosts = NULL;
1112 uschar *recipient_verify_failure = NULL;
1113 int     recipients_count       = 0;
1114 BOOL    recipients_discarded   = FALSE;
1115 recipient_item  *recipients_list = NULL;
1116 int     recipients_list_max    = 0;
1117 int     recipients_max         = 0;
1118 BOOL    recipients_max_reject  = FALSE;
1119 const pcre *regex_AUTH         = NULL;
1120 const pcre *regex_check_dns_names = NULL;
1121 const pcre *regex_From         = NULL;
1122 const pcre *regex_IGNOREQUOTA  = NULL;
1123 const pcre *regex_PIPELINING   = NULL;
1124 const pcre *regex_SIZE         = NULL;
1125 const pcre *regex_ismsgid      = NULL;
1126 const pcre *regex_smtp_code    = NULL;
1127 uschar *regex_vars[REGEX_VARS];
1128 #ifdef WHITELIST_D_MACROS
1129 const pcre *regex_whitelisted_macro = NULL;
1130 #endif
1131 #ifdef WITH_CONTENT_SCAN
1132 uschar *regex_match_string     = NULL;
1133 #endif
1134 int     remote_delivery_count  = 0;
1135 int     remote_max_parallel    = 2;
1136 uschar *remote_sort_domains    = NULL;
1137 int     retry_data_expire      = 7*24*60*60;
1138 int     retry_interval_max     = 24*60*60;
1139 int     retry_maximum_timeout  = 0;        /* set from retry config */
1140 retry_config  *retries         = NULL;
1141 uschar *return_path            = NULL;
1142 BOOL    return_path_remove     = TRUE;
1143 int     rewrite_existflags     = 0;
1144 uschar *rfc1413_hosts          = US"@[]";
1145 int     rfc1413_query_timeout  = 0;
1146 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1147 uid_t   root_gid               = ROOT_GID;
1148 uid_t   root_uid               = ROOT_UID;
1149
1150 router_instance  *routers  = NULL;
1151 router_instance  router_defaults = {
1152     NULL,                      /* chain pointer */
1153     NULL,                      /* name */
1154     NULL,                      /* info */
1155     NULL,                      /* private options block pointer */
1156     NULL,                      /* driver name */
1157
1158     NULL,                      /* address_data */
1159 #ifdef EXPERIMENTAL_BRIGHTMAIL
1160     NULL,                      /* bmi_rule */
1161 #endif
1162     NULL,                      /* cannot_route_message */
1163     NULL,                      /* condition */
1164     NULL,                      /* current_directory */
1165     NULL,                      /* debug_string */
1166     NULL,                      /* domains */
1167     NULL,                      /* errors_to */
1168     NULL,                      /* expand_gid */
1169     NULL,                      /* expand_uid */
1170     NULL,                      /* expand_more */
1171     NULL,                      /* expand_unseen */
1172     NULL,                      /* extra_headers */
1173     NULL,                      /* fallback_hosts */
1174     NULL,                      /* home_directory */
1175     NULL,                      /* ignore_target_hosts */
1176     NULL,                      /* local_parts */
1177     NULL,                      /* pass_router_name */
1178     NULL,                      /* prefix */
1179     NULL,                      /* redirect_router_name */
1180     NULL,                      /* remove_headers */
1181     NULL,                      /* require_files */
1182     NULL,                      /* router_home_directory */
1183     US"freeze",                /* self */
1184     NULL,                      /* senders */
1185     NULL,                      /* suffix */
1186     NULL,                      /* translate_ip_address */
1187     NULL,                      /* transport_name */
1188
1189     TRUE,                      /* address_test */
1190 #ifdef EXPERIMENTAL_BRIGHTMAIL
1191     FALSE,                     /* bmi_deliver_alternate */
1192     FALSE,                     /* bmi_deliver_default */
1193     FALSE,                     /* bmi_dont_deliver */
1194 #endif
1195     TRUE,                      /* expn */
1196     FALSE,                     /* caseful_local_part */
1197     FALSE,                     /* check_local_user */
1198     FALSE,                     /* disable_logging */
1199     FALSE,                     /* fail_verify_recipient */
1200     FALSE,                     /* fail_verify_sender */
1201     FALSE,                     /* gid_set */
1202     FALSE,                     /* initgroups */
1203     TRUE_UNSET,                /* log_as_local */
1204     TRUE,                      /* more */
1205     FALSE,                     /* pass_on_timeout */
1206     FALSE,                     /* prefix_optional */
1207     TRUE,                      /* repeat_use */
1208     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1209     FALSE,                     /* same_domain_copy_routing */
1210     FALSE,                     /* self_rewrite */
1211     FALSE,                     /* suffix_optional */
1212     FALSE,                     /* verify_only */
1213     TRUE,                      /* verify_recipient */
1214     TRUE,                      /* verify_sender */
1215     FALSE,                     /* uid_set */
1216     FALSE,                     /* unseen */
1217     FALSE,                     /* dsn_lasthop */
1218
1219     self_freeze,               /* self_code */
1220     (uid_t)(-1),               /* uid */
1221     (gid_t)(-1),               /* gid */
1222
1223     NULL,                      /* fallback_hostlist */
1224     NULL,                      /* transport instance */
1225     NULL,                      /* pass_router */
1226     NULL,                      /* redirect_router */
1227
1228     { NULL, NULL },            /* dnssec_domains {require,request} */
1229 };
1230
1231 uschar *router_name            = NULL;
1232
1233 ip_address_item *running_interfaces = NULL;
1234 BOOL    running_in_test_harness = FALSE;
1235
1236 /* This is a weird one. The following string gets patched in the binary by the
1237 script that sets up a copy of Exim for running in the test harness. It seems
1238 that compilers are now clever, and share constant strings if they can.
1239 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1240 make use of the end of this string in order to save space. So the patching then
1241 wrecks this. We defeat this optimization by adding some additional characters
1242 onto the end of the string. */
1243
1244 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1245
1246 int     runrc                  = 0;
1247
1248 uschar *search_error_message   = NULL;
1249 BOOL    search_find_defer      = FALSE;
1250 uschar *self_hostname          = NULL;
1251 uschar *sender_address         = NULL;
1252 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1253 uschar *sender_address_data    = NULL;
1254 BOOL    sender_address_forced  = FALSE;
1255 uschar *sender_address_unrewritten = NULL;
1256 uschar *sender_data            = NULL;
1257 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1258 uschar *sender_fullhost        = NULL;
1259 BOOL    sender_helo_dnssec     = FALSE;
1260 uschar *sender_helo_name       = NULL;
1261 uschar **sender_host_aliases   = &no_aliases;
1262 uschar *sender_host_address    = NULL;
1263 uschar *sender_host_authenticated = NULL;
1264 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1265 BOOL    sender_host_dnssec     = FALSE;
1266 uschar *sender_host_name       = NULL;
1267 int     sender_host_port       = 0;
1268 BOOL    sender_host_notsocket  = FALSE;
1269 BOOL    sender_host_unknown    = FALSE;
1270 uschar *sender_ident           = NULL;
1271 BOOL    sender_local           = FALSE;
1272 BOOL    sender_name_forced     = FALSE;
1273 uschar *sender_rate            = NULL;
1274 uschar *sender_rate_limit      = NULL;
1275 uschar *sender_rate_period     = NULL;
1276 uschar *sender_rcvhost         = NULL;
1277 BOOL    sender_set_untrusted   = FALSE;
1278 uschar *sender_unqualified_hosts = NULL;
1279 uschar *sender_verify_failure = NULL;
1280 address_item *sender_verified_list  = NULL;
1281 address_item *sender_verified_failed = NULL;
1282 int     sender_verified_rc     = -1;
1283 BOOL    sender_verified_responded = FALSE;
1284 uschar *sending_ip_address     = NULL;
1285 int     sending_port           = -1;
1286 SIGNAL_BOOL sigalrm_seen       = FALSE;
1287 uschar **sighup_argv           = NULL;
1288 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1289 int     smtp_accept_count      = 0;
1290 BOOL    smtp_accept_keepalive  = TRUE;
1291 int     smtp_accept_max        = 20;
1292 int     smtp_accept_max_nonmail= 10;
1293 uschar *smtp_accept_max_nonmail_hosts = US"*";
1294 int     smtp_accept_max_per_connection = 1000;
1295 uschar *smtp_accept_max_per_host = NULL;
1296 int     smtp_accept_queue      = 0;
1297 int     smtp_accept_queue_per_connection = 10;
1298 int     smtp_accept_reserve    = 0;
1299 uschar *smtp_active_hostname   = NULL;
1300 BOOL    smtp_authenticated     = FALSE;
1301 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1302                              "Exim $version_number $tod_full"
1303                              "\0<---------------Space to patch smtp_banner->";
1304 BOOL    smtp_batched_input     = FALSE;
1305 BOOL    smtp_check_spool_space = TRUE;
1306 int     smtp_ch_index          = 0;
1307 uschar *smtp_cmd_argument      = NULL;
1308 uschar *smtp_cmd_buffer        = NULL;
1309 time_t  smtp_connection_start  = 0;
1310 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1311 int     smtp_connect_backlog   = 20;
1312 double  smtp_delay_mail        = 0.0;
1313 double  smtp_delay_rcpt        = 0.0;
1314 BOOL    smtp_enforce_sync      = TRUE;
1315 FILE   *smtp_in                = NULL;
1316 BOOL    smtp_input             = FALSE;
1317 int     smtp_load_reserve      = -1;
1318 int     smtp_mailcmd_count     = 0;
1319 FILE   *smtp_out               = NULL;
1320 uschar *smtp_etrn_command      = NULL;
1321 BOOL    smtp_etrn_serialize    = TRUE;
1322 int     smtp_max_synprot_errors= 3;
1323 int     smtp_max_unknown_commands = 3;
1324 uschar *smtp_notquit_reason    = NULL;
1325 uschar *smtp_ratelimit_hosts   = NULL;
1326 uschar *smtp_ratelimit_mail    = NULL;
1327 uschar *smtp_ratelimit_rcpt    = NULL;
1328 uschar *smtp_read_error        = US"";
1329 int     smtp_receive_timeout   = 5*60;
1330 uschar *smtp_receive_timeout_s = NULL;
1331 uschar *smtp_reserve_hosts     = NULL;
1332 BOOL    smtp_return_error_details = FALSE;
1333 int     smtp_rlm_base          = 0;
1334 double  smtp_rlm_factor        = 0.0;
1335 int     smtp_rlm_limit         = 0;
1336 int     smtp_rlm_threshold     = INT_MAX;
1337 int     smtp_rlr_base          = 0;
1338 double  smtp_rlr_factor        = 0.0;
1339 int     smtp_rlr_limit         = 0;
1340 int     smtp_rlr_threshold     = INT_MAX;
1341 unsigned smtp_peer_options     = 0;
1342 unsigned smtp_peer_options_wrap= 0;
1343 #ifdef SUPPORT_I18N
1344 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1345 #endif
1346
1347 #ifdef WITH_CONTENT_SCAN
1348 uschar *spamd_address          = US"127.0.0.1 783";
1349 uschar *spam_bar               = NULL;
1350 uschar *spam_report            = NULL;
1351 uschar *spam_action            = NULL;
1352 uschar *spam_score             = NULL;
1353 uschar *spam_score_int         = NULL;
1354 #endif
1355 #ifdef EXPERIMENTAL_SPF
1356 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1357 uschar *spf_header_comment     = NULL;
1358 uschar *spf_received           = NULL;
1359 uschar *spf_result             = NULL;
1360 uschar *spf_smtp_comment       = NULL;
1361 #endif
1362
1363 BOOL    split_spool_directory  = FALSE;
1364 uschar *spool_directory        = US SPOOL_DIRECTORY
1365                            "\0<--------------Space to patch spool_directory->";
1366 #ifdef EXPERIMENTAL_SRS
1367 uschar *srs_config             = NULL;
1368 uschar *srs_db_address         = NULL;
1369 uschar *srs_db_key             = NULL;
1370 int     srs_hashlength         = 6;
1371 int     srs_hashmin            = -1;
1372 int     srs_maxage             = 31;
1373 uschar *srs_orig_recipient     = NULL;
1374 uschar *srs_orig_sender        = NULL;
1375 uschar *srs_recipient          = NULL;
1376 uschar *srs_secrets            = NULL;
1377 uschar *srs_status             = NULL;
1378 BOOL    srs_usehash            = TRUE;
1379 BOOL    srs_usetimestamp       = TRUE;
1380 #endif
1381 BOOL    strict_acl_vars        = FALSE;
1382 int     string_datestamp_offset= -1;
1383 int     string_datestamp_length= 0;
1384 int     string_datestamp_type  = -1;
1385 BOOL    strip_excess_angle_brackets = FALSE;
1386 BOOL    strip_trailing_dot     = FALSE;
1387 uschar *submission_domain      = NULL;
1388 BOOL    submission_mode        = FALSE;
1389 uschar *submission_name        = NULL;
1390 BOOL    suppress_local_fixups  = FALSE;
1391 BOOL    suppress_local_fixups_default = FALSE;
1392 BOOL    synchronous_delivery   = FALSE;
1393 BOOL    syslog_duplication     = TRUE;
1394 int     syslog_facility        = LOG_MAIL;
1395 BOOL    syslog_pid             = TRUE;
1396 uschar *syslog_processname     = US"exim";
1397 BOOL    syslog_timestamp       = TRUE;
1398 uschar *system_filter          = NULL;
1399
1400 uschar *system_filter_directory_transport = NULL;
1401 uschar *system_filter_file_transport = NULL;
1402 uschar *system_filter_pipe_transport = NULL;
1403 uschar *system_filter_reply_transport = NULL;
1404
1405 gid_t   system_filter_gid      = 0;
1406 BOOL    system_filter_gid_set  = FALSE;
1407 uid_t   system_filter_uid      = (uid_t)-1;
1408 BOOL    system_filter_uid_set  = FALSE;
1409 BOOL    system_filtering       = FALSE;
1410
1411 BOOL    tcp_fastopen_ok        = FALSE;
1412 BOOL    tcp_nodelay            = TRUE;
1413 #ifdef USE_TCP_WRAPPERS
1414 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1415 #endif
1416 int     test_harness_load_avg  = 0;
1417 int     thismessage_size_limit = 0;
1418 int     timeout_frozen_after   = 0;
1419 BOOL    timestamps_utc         = FALSE;
1420
1421 transport_instance  *transports = NULL;
1422
1423 transport_instance  transport_defaults = {
1424     NULL,                     /* chain pointer */
1425     NULL,                     /* name */
1426     NULL,                     /* info */
1427     NULL,                     /* private options block pointer */
1428     NULL,                     /* driver name */
1429     NULL,                     /* setup entry point */
1430     1,                        /* batch_max */
1431     NULL,                     /* batch_id */
1432     NULL,                     /* home_dir */
1433     NULL,                     /* current_dir */
1434     NULL,                     /* expand-multi-domain */
1435     TRUE,                     /* multi-domain */
1436     FALSE,                    /* overrides_hosts */
1437     100,                      /* max_addresses */
1438     500,                      /* connection_max_messages */
1439     FALSE,                    /* deliver_as_creator */
1440     FALSE,                    /* disable_logging */
1441     FALSE,                    /* initgroups */
1442     FALSE,                    /* uid_set */
1443     FALSE,                    /* gid_set */
1444     (uid_t)(-1),              /* uid */
1445     (gid_t)(-1),              /* gid */
1446     NULL,                     /* expand_uid */
1447     NULL,                     /* expand_gid */
1448     NULL,                     /* warn_message */
1449     NULL,                     /* shadow */
1450     NULL,                     /* shadow_condition */
1451     NULL,                     /* filter_command */
1452     NULL,                     /* add_headers */
1453     NULL,                     /* remove_headers */
1454     NULL,                     /* return_path */
1455     NULL,                     /* debug_string */
1456     NULL,                     /* max_parallel */
1457     NULL,                     /* message_size_limit */
1458     NULL,                     /* headers_rewrite */
1459     NULL,                     /* rewrite_rules */
1460     0,                        /* rewrite_existflags */
1461     300,                      /* filter_timeout */
1462     FALSE,                    /* body_only */
1463     FALSE,                    /* delivery_date_add */
1464     FALSE,                    /* envelope_to_add */
1465     FALSE,                    /* headers_only */
1466     FALSE,                    /* rcpt_include_affixes */
1467     FALSE,                    /* return_path_add */
1468     FALSE,                    /* return_output */
1469     FALSE,                    /* return_fail_output */
1470     FALSE,                    /* log_output */
1471     FALSE,                    /* log_fail_output */
1472     FALSE,                    /* log_defer_output */
1473     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1474                                  1 nor 0 so can detect unset */
1475 #ifndef DISABLE_EVENT
1476    ,NULL                      /* event_action */
1477 #endif
1478 };
1479
1480 int     transport_count;
1481 uschar *transport_name          = NULL;
1482 int     transport_newlines;
1483 const uschar **transport_filter_argv  = NULL;
1484 int     transport_filter_timeout;
1485 BOOL    transport_filter_timed_out = FALSE;
1486 int     transport_write_timeout= 0;
1487
1488 tree_node  *tree_dns_fails     = NULL;
1489 tree_node  *tree_duplicates    = NULL;
1490 tree_node  *tree_nonrecipients = NULL;
1491 tree_node  *tree_unusable      = NULL;
1492
1493 BOOL    trusted_caller         = FALSE;
1494 BOOL    trusted_config         = TRUE;
1495 gid_t  *trusted_groups         = NULL;
1496 uid_t  *trusted_users          = NULL;
1497 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1498
1499 uschar *unknown_login          = NULL;
1500 uschar *unknown_username       = NULL;
1501 uschar *untrusted_set_sender   = NULL;
1502
1503 /*  A regex for matching a "From_" line in an incoming message, in the form
1504
1505     From ph10 Fri Jan  5 12:35 GMT 1996
1506
1507 which  the "mail" commands send to the MTA (undocumented, of course), or in
1508 the  form
1509
1510     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1511
1512 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1513 Because  of variations in time formats, just match up to the minutes. That
1514 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1515 so  just require one digit for hours and minutes. The weekday is also absent
1516 in  some forms. */
1517
1518 uschar *uucp_from_pattern      = US
1519    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1520    "(?:"                                          /* Non-extracting bracket */
1521    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1522    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1523    ")"                                            /* End alternation */
1524    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1525
1526 uschar *uucp_from_sender       = US"$1";
1527
1528 uschar *verify_mode            = NULL;
1529 uschar *version_copyright      =
1530  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1531    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1532 uschar *version_date           = US"?";
1533 uschar *version_cnumber        = US"????";
1534 uschar *version_string         = US"?";
1535
1536 uschar *warn_message_file      = NULL;
1537 int     warning_count          = 0;
1538 uschar *warnmsg_delay          = NULL;
1539 uschar *warnmsg_recipients     = NULL;
1540 BOOL    write_rejectlog        = TRUE;
1541
1542
1543 /*  End of globals.c */