src/src/drtables.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8
   9 #include "exim.h"
  10
  11 #include <string.h>
  12
  13 /* This module contains tables that define the lookup methods and drivers
  14 that are actually included in the binary. Its contents are controlled by
  15 various macros in config.h that ultimately come from Local/Makefile. They are
  16 all described in src/EDITME. */
  17
  18
  19 lookup_info **lookup_list;
  20 int lookup_list_count = 0;
  21
  22 /* Table of information about all possible authentication mechanisms. All
  23 entries are always present if any mechanism is declared, but the functions are
  24 set to NULL for those that are not compiled into the binary. */
  25
  26 #ifdef AUTH_CRAM_MD5
  27 #include "auths/cram_md5.h"
  28 #endif
  29
  30 #ifdef AUTH_CYRUS_SASL
  31 #include "auths/cyrus_sasl.h"
  32 #endif
  33
  34 #ifdef AUTH_DOVECOT
  35 #include "auths/dovecot.h"
  36 #endif
  37
  38 #ifdef AUTH_EXTERNAL
  39 #include "auths/external.h"
  40 #endif
  41
  42 #ifdef AUTH_GSASL
  43 #include "auths/gsasl_exim.h"
  44 #endif
  45
  46 #ifdef AUTH_HEIMDAL_GSSAPI
  47 #include "auths/heimdal_gssapi.h"
  48 #endif
  49
  50 #ifdef AUTH_PLAINTEXT
  51 #include "auths/plaintext.h"
  52 #endif
  53
  54 #ifdef AUTH_SPA
  55 #include "auths/spa.h"
  56 #endif
  57
  58 #ifdef AUTH_TLS
  59 #include "auths/tls.h"
  60 #endif
  61
  62 auth_info auths_available[] = {
  63
  64 /* Checking by an expansion condition on plain text */
  65
  66 #ifdef AUTH_CRAM_MD5
  67   {
  68   .driver_name =        US"cram_md5",                              /* lookup name */
  69   .options =            auth_cram_md5_options,
  70   .options_count =      &auth_cram_md5_options_count,
  71   .options_block =      &auth_cram_md5_option_defaults,
  72   .options_len =        sizeof(auth_cram_md5_options_block),
  73   .init =               auth_cram_md5_init,
  74   .servercode =         auth_cram_md5_server,
  75   .clientcode =         auth_cram_md5_client,
  76   .version_report =     NULL,
  77   .macros_create =      NULL,
  78   },
  79 #endif
  80
  81 #ifdef AUTH_CYRUS_SASL
  82   {
  83   .driver_name =        US"cyrus_sasl",
  84   .options =            auth_cyrus_sasl_options,
  85   .options_count =      &auth_cyrus_sasl_options_count,
  86   .options_block =      &auth_cyrus_sasl_option_defaults,
  87   .options_len =        sizeof(auth_cyrus_sasl_options_block),
  88   .init =               auth_cyrus_sasl_init,
  89   .servercode =         auth_cyrus_sasl_server,
  90   .clientcode =         NULL,
  91   .version_report =     auth_cyrus_sasl_version_report,
  92   .macros_create =      NULL,
  93   },
  94 #endif
  95
  96 #ifdef AUTH_DOVECOT
  97   {
  98   .driver_name =        US"dovecot",
  99   .options =            auth_dovecot_options,
 100   .options_count =      &auth_dovecot_options_count,
 101   .options_block =      &auth_dovecot_option_defaults,
 102   .options_len =        sizeof(auth_dovecot_options_block),
 103   .init =               auth_dovecot_init,
 104   .servercode =         auth_dovecot_server,
 105   .clientcode =         NULL,
 106   .version_report =     NULL,
 107   .macros_create =      NULL,
 108   },
 109 #endif
 110
 111 #ifdef AUTH_EXTERNAL
 112   {
 113   .driver_name =        US"external",
 114   .options =            auth_external_options,
 115   .options_count =      &auth_external_options_count,
 116   .options_block =      &auth_external_option_defaults,
 117   .options_len =        sizeof(auth_external_options_block),
 118   .init =               auth_external_init,
 119   .servercode =         auth_external_server,
 120   .clientcode =         auth_external_client,
 121   .version_report =     NULL,
 122   .macros_create =      NULL,
 123   },
 124 #endif
 125
 126 #ifdef AUTH_GSASL
 127   {
 128   .driver_name =        US"gsasl",
 129   .options =            auth_gsasl_options,
 130   .options_count =      &auth_gsasl_options_count,
 131   .options_block =      &auth_gsasl_option_defaults,
 132   .options_len =        sizeof(auth_gsasl_options_block),
 133   .init =               auth_gsasl_init,
 134   .servercode =         auth_gsasl_server,
 135   .clientcode =         auth_gsasl_client,
 136   .version_report =     auth_gsasl_version_report,
 137   .macros_create =      auth_gsasl_macros,
 138   },
 139 #endif
 140
 141 #ifdef AUTH_HEIMDAL_GSSAPI
 142   {
 143   .driver_name =        US"heimdal_gssapi",
 144   .options =            auth_heimdal_gssapi_options,
 145   .options_count =      &auth_heimdal_gssapi_options_count,
 146   .options_block =      &auth_heimdal_gssapi_option_defaults,
 147   .options_len =        sizeof(auth_heimdal_gssapi_options_block),
 148   .init =               auth_heimdal_gssapi_init,
 149   .servercode =         auth_heimdal_gssapi_server,
 150   .clientcode =         NULL,
 151   .version_report =     auth_heimdal_gssapi_version_report,
 152   .macros_create =      NULL,
 153   },
 154 #endif
 155
 156 #ifdef AUTH_PLAINTEXT
 157   {
 158   .driver_name =        US"plaintext",
 159   .options =            auth_plaintext_options,
 160   .options_count =      &auth_plaintext_options_count,
 161   .options_block =      &auth_plaintext_option_defaults,
 162   .options_len =        sizeof(auth_plaintext_options_block),
 163   .init =               auth_plaintext_init,
 164   .servercode =         auth_plaintext_server,
 165   .clientcode =         auth_plaintext_client,
 166   .version_report =     NULL,
 167   .macros_create =      NULL,
 168   },
 169 #endif
 170
 171 #ifdef AUTH_SPA
 172   {
 173   .driver_name =        US"spa",
 174   .options =            auth_spa_options,
 175   .options_count =      &auth_spa_options_count,
 176   .options_block =      &auth_spa_option_defaults,
 177   .options_len =        sizeof(auth_spa_options_block),
 178   .init =               auth_spa_init,
 179   .servercode =         auth_spa_server,
 180   .clientcode =         auth_spa_client,
 181   .version_report =     NULL,
 182   .macros_create =      NULL,
 183   },
 184 #endif
 185
 186 #ifdef AUTH_TLS
 187   {
 188   .driver_name =        US"tls",
 189   .options =            auth_tls_options,
 190   .options_count =      &auth_tls_options_count,
 191   .options_block =      &auth_tls_option_defaults,
 192   .options_len =        sizeof(auth_tls_options_block),
 193   .init =               auth_tls_init,
 194   .servercode =         auth_tls_server,
 195   .clientcode =         NULL,
 196   .version_report =     NULL,
 197   .macros_create =      NULL,
 198   },
 199 #endif
 200
 201   { .driver_name = US"" }               /* end marker */
 202 };
 203
 204 void
 205 auth_show_supported(FILE * f)
 206 {
 207 fprintf(f, "Authenticators:");
 208 for (auth_info * ai = auths_available; ai->driver_name[0]; ai++)
 209         fprintf(f, " %s", ai->driver_name);
 210 fprintf(f, "\n");
 211 }
 212
 213
 214 /* Tables of information about which routers and transports are included in the
 215 exim binary. */
 216
 217 /* Pull in the necessary header files */
 218
 219 #include "routers/rf_functions.h"
 220
 221 #ifdef ROUTER_ACCEPT
 222 #include "routers/accept.h"
 223 #endif
 224
 225 #ifdef ROUTER_DNSLOOKUP
 226 #include "routers/dnslookup.h"
 227 #endif
 228
 229 #ifdef ROUTER_MANUALROUTE
 230 #include "routers/manualroute.h"
 231 #endif
 232
 233 #ifdef ROUTER_IPLITERAL
 234 #include "routers/ipliteral.h"
 235 #endif
 236
 237 #ifdef ROUTER_IPLOOKUP
 238 #include "routers/iplookup.h"
 239 #endif
 240
 241 #ifdef ROUTER_QUERYPROGRAM
 242 #include "routers/queryprogram.h"
 243 #endif
 244
 245 #ifdef ROUTER_REDIRECT
 246 #include "routers/redirect.h"
 247 #endif
 248
 249 #ifdef TRANSPORT_APPENDFILE
 250 #include "transports/appendfile.h"
 251 #endif
 252
 253 #ifdef TRANSPORT_AUTOREPLY
 254 #include "transports/autoreply.h"
 255 #endif
 256
 257 #ifdef TRANSPORT_LMTP
 258 #include "transports/lmtp.h"
 259 #endif
 260
 261 #ifdef TRANSPORT_PIPE
 262 #include "transports/pipe.h"
 263 #endif
 264
 265 #ifdef EXPERIMENTAL_QUEUEFILE
 266 #include "transports/queuefile.h"
 267 #endif
 268
 269 #ifdef TRANSPORT_SMTP
 270 #include "transports/smtp.h"
 271 #endif
 272
 273
 274 /* Now set up the structures, terminated by an entry with a null name. */
 275
 276 router_info routers_available[] = {
 277 #ifdef ROUTER_ACCEPT
 278   {
 279   .driver_name =        US"accept",
 280   .options =            accept_router_options,
 281   .options_count =      &accept_router_options_count,
 282   .options_block =      &accept_router_option_defaults,
 283   .options_len =        sizeof(accept_router_options_block),
 284   .init =               accept_router_init,
 285   .code =               accept_router_entry,
 286   .tidyup =             NULL,     /* no tidyup entry */
 287   .ri_flags =           ri_yestransport
 288   },
 289 #endif
 290 #ifdef ROUTER_DNSLOOKUP
 291   {
 292   .driver_name =        US"dnslookup",
 293   .options =            dnslookup_router_options,
 294   .options_count =      &dnslookup_router_options_count,
 295   .options_block =      &dnslookup_router_option_defaults,
 296   .options_len =        sizeof(dnslookup_router_options_block),
 297   .init =               dnslookup_router_init,
 298   .code =               dnslookup_router_entry,
 299   .tidyup =             NULL,     /* no tidyup entry */
 300   .ri_flags =           ri_yestransport
 301   },
 302 #endif
 303 #ifdef ROUTER_IPLITERAL
 304   {
 305   .driver_name =        US"ipliteral",
 306   .options =            ipliteral_router_options,
 307   .options_count =      &ipliteral_router_options_count,
 308   .options_block =      &ipliteral_router_option_defaults,
 309   .options_len =        sizeof(ipliteral_router_options_block),
 310   .init =               ipliteral_router_init,
 311   .code =               ipliteral_router_entry,
 312   .tidyup =             NULL,     /* no tidyup entry */
 313   .ri_flags =           ri_yestransport
 314   },
 315 #endif
 316 #ifdef ROUTER_IPLOOKUP
 317   {
 318   .driver_name =        US"iplookup",
 319   .options =            iplookup_router_options,
 320   .options_count =      &iplookup_router_options_count,
 321   .options_block =      &iplookup_router_option_defaults,
 322   .options_len =        sizeof(iplookup_router_options_block),
 323   .init =               iplookup_router_init,
 324   .code =               iplookup_router_entry,
 325   .tidyup =             NULL,     /* no tidyup entry */
 326   .ri_flags =           ri_notransport
 327   },
 328 #endif
 329 #ifdef ROUTER_MANUALROUTE
 330   {
 331   .driver_name =        US"manualroute",
 332   .options =            manualroute_router_options,
 333   .options_count =      &manualroute_router_options_count,
 334   .options_block =      &manualroute_router_option_defaults,
 335   .options_len =        sizeof(manualroute_router_options_block),
 336   .init =               manualroute_router_init,
 337   .code =               manualroute_router_entry,
 338   .tidyup =             NULL,     /* no tidyup entry */
 339   .ri_flags =           0
 340   },
 341 #endif
 342 #ifdef ROUTER_QUERYPROGRAM
 343   {
 344   .driver_name =        US"queryprogram",
 345   .options =            queryprogram_router_options,
 346   .options_count =      &queryprogram_router_options_count,
 347   .options_block =      &queryprogram_router_option_defaults,
 348   .options_len =        sizeof(queryprogram_router_options_block),
 349   .init =               queryprogram_router_init,
 350   .code =               queryprogram_router_entry,
 351   .tidyup =             NULL,     /* no tidyup entry */
 352   .ri_flags =           0
 353   },
 354 #endif
 355 #ifdef ROUTER_REDIRECT
 356   {
 357   .driver_name =        US"redirect",
 358   .options =            redirect_router_options,
 359   .options_count =      &redirect_router_options_count,
 360   .options_block =      &redirect_router_option_defaults,
 361   .options_len =        sizeof(redirect_router_options_block),
 362   .init =               redirect_router_init,
 363   .code =               redirect_router_entry,
 364   .tidyup =             NULL,     /* no tidyup entry */
 365   .ri_flags =           ri_notransport
 366   },
 367 #endif
 368   { US"" }
 369 };
 370
 371
 372 void
 373 route_show_supported(FILE * f)
 374 {
 375 fprintf(f, "Routers:");
 376 for (router_info * rr = routers_available; rr->driver_name[0]; rr++)
 377         fprintf(f, " %s", rr->driver_name);
 378 fprintf(f, "\n");
 379 }
 380
 381
 382
 383
 384 transport_info transports_available[] = {
 385 #ifdef TRANSPORT_APPENDFILE
 386   {
 387   .driver_name =        US"appendfile",
 388   .options =            appendfile_transport_options,
 389   .options_count =      &appendfile_transport_options_count,
 390   .options_block =      &appendfile_transport_option_defaults,       /* private options defaults */
 391   .options_len =        sizeof(appendfile_transport_options_block),
 392   .init =               appendfile_transport_init,
 393   .code =               appendfile_transport_entry,
 394   .tidyup =             NULL,
 395   .closedown =          NULL,
 396   .local =              TRUE
 397   },
 398 #endif
 399 #ifdef TRANSPORT_AUTOREPLY
 400   {
 401   .driver_name =        US"autoreply",
 402   .options =            autoreply_transport_options,
 403   .options_count =      &autoreply_transport_options_count,
 404   .options_block =      &autoreply_transport_option_defaults,
 405   .options_len =        sizeof(autoreply_transport_options_block),
 406   .init =               autoreply_transport_init,
 407   .code =               autoreply_transport_entry,
 408   .tidyup =             NULL,
 409   .closedown =          NULL,
 410   .local =              TRUE
 411   },
 412 #endif
 413 #ifdef TRANSPORT_LMTP
 414   {
 415   .driver_name =        US"lmtp",
 416   .options =            lmtp_transport_options,
 417   .options_count =      &lmtp_transport_options_count,
 418   .options_block =      &lmtp_transport_option_defaults,
 419   .options_len =        sizeof(lmtp_transport_options_block),
 420   .init =               lmtp_transport_init,
 421   .code =               lmtp_transport_entry,
 422   .tidyup =             NULL,
 423   .closedown =          NULL,
 424   .local =              TRUE
 425   },
 426 #endif
 427 #ifdef TRANSPORT_PIPE
 428   {
 429   .driver_name =        US"pipe",
 430   .options =            pipe_transport_options,
 431   .options_count =      &pipe_transport_options_count,
 432   .options_block =      &pipe_transport_option_defaults,
 433   .options_len =        sizeof(pipe_transport_options_block),
 434   .init =               pipe_transport_init,
 435   .code =               pipe_transport_entry,
 436   .tidyup =             NULL,
 437   .closedown =          NULL,
 438   .local =              TRUE
 439   },
 440 #endif
 441 #ifdef EXPERIMENTAL_QUEUEFILE
 442   {
 443   .driver_name =        US"queuefile",
 444   .options =            queuefile_transport_options,
 445   .options_count =      &queuefile_transport_options_count,
 446   .options_block =      &queuefile_transport_option_defaults,
 447   .options_len =        sizeof(queuefile_transport_options_block),
 448   .init =               queuefile_transport_init,
 449   .code =               queuefile_transport_entry,
 450   .tidyup =             NULL,
 451   .closedown =          NULL,
 452   .local =              TRUE
 453   },
 454 #endif
 455 #ifdef TRANSPORT_SMTP
 456   {
 457   .driver_name =        US"smtp",
 458   .options =            smtp_transport_options,
 459   .options_count =      &smtp_transport_options_count,
 460   .options_block =      &smtp_transport_option_defaults,
 461   .options_len =        sizeof(smtp_transport_options_block),
 462   .init =               smtp_transport_init,
 463   .code =               smtp_transport_entry,
 464   .tidyup =             NULL,
 465   .closedown =          smtp_transport_closedown,
 466   .local =              FALSE
 467   },
 468 #endif
 469   { US"" }
 470 };
 471
 472 void
 473 transport_show_supported(FILE * f)
 474 {
 475 fprintf(f, "Transports:");
 476 #ifdef TRANSPORT_APPENDFILE
 477   fprintf(f, " appendfile");
 478   #ifdef SUPPORT_MAILDIR
 479     fprintf(f, "/maildir");     /* damn these subclasses */
 480   #endif
 481   #ifdef SUPPORT_MAILSTORE
 482     fprintf(f, "/mailstore");
 483   #endif
 484   #ifdef SUPPORT_MBX
 485     fprintf(f, "/mbx");
 486   #endif
 487 #endif
 488 #ifdef TRANSPORT_AUTOREPLY
 489   fprintf(f, " autoreply");
 490 #endif
 491 #ifdef TRANSPORT_LMTP
 492   fprintf(f, " lmtp");
 493 #endif
 494 #ifdef TRANSPORT_PIPE
 495   fprintf(f, " pipe");
 496 #endif
 497 #ifdef EXPERIMENTAL_QUEUEFILE
 498   fprintf(f, " queuefile");
 499 #endif
 500 #ifdef TRANSPORT_SMTP
 501   fprintf(f, " smtp");
 502 #endif
 503 fprintf(f, "\n");
 504 }
 505
 506
 507 #ifndef MACRO_PREDEF
 508
 509 struct lookupmodulestr
 510 {
 511   void *dl;
 512   struct lookup_module_info *info;
 513   struct lookupmodulestr *next;
 514 };
 515
 516 static struct lookupmodulestr *lookupmodules = NULL;
 517
 518 static void
 519 addlookupmodule(void *dl, struct lookup_module_info *info)
 520 {
 521 struct lookupmodulestr *p = store_get(sizeof(struct lookupmodulestr), FALSE);
 522
 523 p->dl = dl;
 524 p->info = info;
 525 p->next = lookupmodules;
 526 lookupmodules = p;
 527 lookup_list_count += info->lookupcount;
 528 }
 529
 530 /* only valid after lookup_list and lookup_list_count are assigned */
 531 static void
 532 add_lookup_to_list(lookup_info *info)
 533 {
 534 /* need to add the lookup to lookup_list, sorted */
 535 int pos = 0;
 536
 537 /* strategy is to go through the list until we find
 538 either an empty spot or a name that is higher.
 539 this can't fail because we have enough space. */
 540
 541 while (lookup_list[pos] && (Ustrcmp(lookup_list[pos]->name, info->name) <= 0))
 542   pos++;
 543
 544 if (lookup_list[pos])
 545   {
 546   /* need to insert it, so move all the other items up
 547   (last slot is still empty, of course) */
 548
 549   memmove(&lookup_list[pos+1], &lookup_list[pos],
 550           sizeof(lookup_info *) * (lookup_list_count-pos-1));
 551   }
 552 lookup_list[pos] = info;
 553 }
 554
 555
 556 /* These need to be at file level for old versions of gcc (2.95.2 reported),
 557  * which give parse errors on an extern in function scope.  Each entry needs
 558  * to also be invoked in init_lookup_list() below  */
 559
 560 #if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
 561 extern lookup_module_info cdb_lookup_module_info;
 562 #endif
 563 #if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
 564 extern lookup_module_info dbmdb_lookup_module_info;
 565 #endif
 566 #if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
 567 extern lookup_module_info dnsdb_lookup_module_info;
 568 #endif
 569 #if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
 570 extern lookup_module_info dsearch_lookup_module_info;
 571 #endif
 572 #if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
 573 extern lookup_module_info ibase_lookup_module_info;
 574 #endif
 575 #if defined(LOOKUP_JSON)
 576 extern lookup_module_info json_lookup_module_info;
 577 #endif
 578 #if defined(LOOKUP_LDAP)
 579 extern lookup_module_info ldap_lookup_module_info;
 580 #endif
 581 #if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
 582 extern lookup_module_info lsearch_lookup_module_info;
 583 #endif
 584 #if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
 585 extern lookup_module_info mysql_lookup_module_info;
 586 #endif
 587 #if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
 588 extern lookup_module_info nis_lookup_module_info;
 589 #endif
 590 #if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
 591 extern lookup_module_info nisplus_lookup_module_info;
 592 #endif
 593 #if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
 594 extern lookup_module_info oracle_lookup_module_info;
 595 #endif
 596 #if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
 597 extern lookup_module_info passwd_lookup_module_info;
 598 #endif
 599 #if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
 600 extern lookup_module_info pgsql_lookup_module_info;
 601 #endif
 602 #if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
 603 extern lookup_module_info redis_lookup_module_info;
 604 #endif
 605 #if defined(EXPERIMENTAL_LMDB)
 606 extern lookup_module_info lmdb_lookup_module_info;
 607 #endif
 608 #if defined(SUPPORT_SPF)
 609 extern lookup_module_info spf_lookup_module_info;
 610 #endif
 611 #if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
 612 extern lookup_module_info sqlite_lookup_module_info;
 613 #endif
 614 #if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
 615 extern lookup_module_info testdb_lookup_module_info;
 616 #endif
 617 #if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
 618 extern lookup_module_info whoson_lookup_module_info;
 619 #endif
 620
 621
 622 void
 623 init_lookup_list(void)
 624 {
 625 #ifdef LOOKUP_MODULE_DIR
 626 DIR *dd;
 627 struct dirent *ent;
 628 int countmodules = 0;
 629 int moduleerrors = 0;
 630 #endif
 631 static BOOL lookup_list_init_done = FALSE;
 632 rmark reset_point;
 633
 634 if (lookup_list_init_done)
 635   return;
 636 reset_point = store_mark();
 637 lookup_list_init_done = TRUE;
 638
 639 #if defined(LOOKUP_CDB) && LOOKUP_CDB!=2
 640 addlookupmodule(NULL, &cdb_lookup_module_info);
 641 #endif
 642
 643 #if defined(LOOKUP_DBM) && LOOKUP_DBM!=2
 644 addlookupmodule(NULL, &dbmdb_lookup_module_info);
 645 #endif
 646
 647 #if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2
 648 addlookupmodule(NULL, &dnsdb_lookup_module_info);
 649 #endif
 650
 651 #if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2
 652 addlookupmodule(NULL, &dsearch_lookup_module_info);
 653 #endif
 654
 655 #if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2
 656 addlookupmodule(NULL, &ibase_lookup_module_info);
 657 #endif
 658
 659 #ifdef LOOKUP_LDAP
 660 addlookupmodule(NULL, &ldap_lookup_module_info);
 661 #endif
 662
 663 #ifdef LOOKUP_JSON
 664 addlookupmodule(NULL, &json_lookup_module_info);
 665 #endif
 666
 667 #if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2
 668 addlookupmodule(NULL, &lsearch_lookup_module_info);
 669 #endif
 670
 671 #if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2
 672 addlookupmodule(NULL, &mysql_lookup_module_info);
 673 #endif
 674
 675 #if defined(LOOKUP_NIS) && LOOKUP_NIS!=2
 676 addlookupmodule(NULL, &nis_lookup_module_info);
 677 #endif
 678
 679 #if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2
 680 addlookupmodule(NULL, &nisplus_lookup_module_info);
 681 #endif
 682
 683 #if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2
 684 addlookupmodule(NULL, &oracle_lookup_module_info);
 685 #endif
 686
 687 #if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2
 688 addlookupmodule(NULL, &passwd_lookup_module_info);
 689 #endif
 690
 691 #if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2
 692 addlookupmodule(NULL, &pgsql_lookup_module_info);
 693 #endif
 694
 695 #if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2
 696 addlookupmodule(NULL, &redis_lookup_module_info);
 697 #endif
 698
 699 #ifdef EXPERIMENTAL_LMDB
 700 addlookupmodule(NULL, &lmdb_lookup_module_info);
 701 #endif
 702
 703 #ifdef SUPPORT_SPF
 704 addlookupmodule(NULL, &spf_lookup_module_info);
 705 #endif
 706
 707 #if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2
 708 addlookupmodule(NULL, &sqlite_lookup_module_info);
 709 #endif
 710
 711 #if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2
 712 addlookupmodule(NULL, &testdb_lookup_module_info);
 713 #endif
 714
 715 #if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2
 716 addlookupmodule(NULL, &whoson_lookup_module_info);
 717 #endif
 718
 719 #ifdef LOOKUP_MODULE_DIR
 720 if (!(dd = exim_opendir(LOOKUP_MODULE_DIR)))
 721   {
 722   DEBUG(D_lookup) debug_printf("Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR);
 723   log_write(0, LOG_MAIN, "Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR);
 724   }
 725 else
 726   {
 727   const pcre *regex_islookupmod = regex_must_compile(
 728     US"\\." DYNLIB_FN_EXT "$", FALSE, TRUE);
 729
 730   DEBUG(D_lookup) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR);
 731   while ((ent = readdir(dd)))
 732     {
 733     char *name = ent->d_name;
 734     int len = (int)strlen(name);
 735     if (pcre_exec(regex_islookupmod, NULL, name, len, 0, PCRE_EOPT, NULL, 0) >= 0)
 736       {
 737       int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2;
 738       void *dl;
 739       struct lookup_module_info *info;
 740       const char *errormsg;
 741
 742       /* SRH: am I being paranoid here or what? */
 743       if (pathnamelen > big_buffer_size)
 744         {
 745         fprintf(stderr, "Loading lookup modules: %s/%s: name too long\n", LOOKUP_MODULE_DIR, name);
 746         log_write(0, LOG_MAIN|LOG_PANIC, "%s/%s: name too long\n", LOOKUP_MODULE_DIR, name);
 747         continue;
 748         }
 749
 750       /* SRH: snprintf here? */
 751       sprintf(CS big_buffer, "%s/%s", LOOKUP_MODULE_DIR, name);
 752
 753       if (!(dl = dlopen(CS big_buffer, RTLD_NOW)))
 754         {
 755         errormsg = dlerror();
 756         fprintf(stderr, "Error loading %s: %s\n", name, errormsg);
 757         log_write(0, LOG_MAIN|LOG_PANIC, "Error loading lookup module %s: %s\n", name, errormsg);
 758         moduleerrors++;
 759         continue;
 760         }
 761
 762       /* FreeBSD nsdispatch() can trigger dlerror() errors about
 763        * _nss_cache_cycle_prevention_function; we need to clear the dlerror()
 764        * state before calling dlsym(), so that any error afterwards only
 765        * comes from dlsym().
 766        */
 767       errormsg = dlerror();
 768
 769       info = (struct lookup_module_info*) dlsym(dl, "_lookup_module_info");
 770       if ((errormsg = dlerror()))
 771         {
 772         fprintf(stderr, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
 773         log_write(0, LOG_MAIN|LOG_PANIC, "%s does not appear to be a lookup module (%s)\n", name, errormsg);
 774         dlclose(dl);
 775         moduleerrors++;
 776         continue;
 777         }
 778       if (info->magic != LOOKUP_MODULE_INFO_MAGIC)
 779         {
 780         fprintf(stderr, "Lookup module %s is not compatible with this version of Exim\n", name);
 781         log_write(0, LOG_MAIN|LOG_PANIC, "Lookup module %s is not compatible with this version of Exim\n", name);
 782         dlclose(dl);
 783         moduleerrors++;
 784         continue;
 785         }
 786
 787       addlookupmodule(dl, info);
 788       DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount);
 789       countmodules++;
 790       }
 791     }
 792   store_free((void*)regex_islookupmod);
 793   closedir(dd);
 794   }
 795
 796 DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules);
 797 #endif
 798
 799 DEBUG(D_lookup) debug_printf("Total %d lookups\n", lookup_list_count);
 800
 801 lookup_list = store_malloc(sizeof(lookup_info *) * lookup_list_count);
 802 memset(lookup_list, 0, sizeof(lookup_info *) * lookup_list_count);
 803
 804 /* now add all lookups to the real list */
 805 for (struct lookupmodulestr * p = lookupmodules; p; p = p->next)
 806   for (int j = 0; j < p->info->lookupcount; j++)
 807     add_lookup_to_list(p->info->lookups[j]);
 808 store_reset(reset_point);
 809 /* just to be sure */
 810 lookupmodules = NULL;
 811 }
 812
 813 #endif  /*!MACRO_PREDEF*/
 814 /* End of drtables.c */