git.sur5r.net Git - openldap/blob - servers/slapd/bind.c

   1 /* bind.c - decode an ldap bind operation and pass it to a backend db */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2003 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/string.h>
  32 #include <ac/socket.h>
  33
  34 #include "ldap_pvt.h"
  35 #include "slap.h"
  36 #ifdef LDAP_SLAPI
  37 #include "slapi.h"
  38 #endif
  39
  40
  41 int
  42 do_bind(
  43     Operation   *op,
  44     SlapReply   *rs
  45 )
  46 {
  47         BerElement *ber = op->o_ber;
  48         ber_int_t version;
  49         ber_tag_t method;
  50         struct berval mech = { 0, NULL };
  51         struct berval dn = { 0, NULL };
  52         ber_tag_t tag;
  53         Backend *be = NULL;
  54
  55 #ifdef NEW_LOGGING
  56         LDAP_LOG( OPERATION, ENTRY, "do_bind: conn %d\n", op->o_connid, 0, 0 );
  57 #else
  58         Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
  59 #endif
  60
  61         /*
  62          * Force to connection to "anonymous" until bind succeeds.
  63          */
  64         ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
  65         if ( op->o_conn->c_sasl_bind_in_progress ) {
  66                 be = op->o_conn->c_authz_backend;
  67         }
  68         if ( op->o_conn->c_dn.bv_len ) {
  69                 /* log authorization identity demotion */
  70                 Statslog( LDAP_DEBUG_STATS,
  71                         "conn=%lu op=%lu BIND anonymous mech=implicit ssf=0\n",
  72                         op->o_connid, op->o_opid, 0, 0, 0 );
  73         }
  74         connection2anonymous( op->o_conn );
  75         if ( op->o_conn->c_sasl_bind_in_progress ) {
  76                 op->o_conn->c_authz_backend = be;
  77         }
  78         ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
  79         if ( op->o_dn.bv_val != NULL ) {
  80                 free( op->o_dn.bv_val );
  81                 op->o_dn.bv_val = ch_strdup( "" );
  82                 op->o_dn.bv_len = 0;
  83         }
  84         if ( op->o_ndn.bv_val != NULL ) {
  85                 free( op->o_ndn.bv_val );
  86                 op->o_ndn.bv_val = ch_strdup( "" );
  87                 op->o_ndn.bv_len = 0;
  88         }
  89
  90         /*
  91          * Parse the bind request.  It looks like this:
  92          *
  93          *      BindRequest ::= SEQUENCE {
  94          *              version         INTEGER,                 -- version
  95          *              name            DistinguishedName,       -- dn
  96          *              authentication  CHOICE {
  97          *                      simple          [0] OCTET STRING -- passwd
  98          *                      krbv42ldap      [1] OCTET STRING
  99          *                      krbv42dsa       [2] OCTET STRING
 100          *                      SASL            [3] SaslCredentials
 101          *              }
 102          *      }
 103          *
 104          *      SaslCredentials ::= SEQUENCE {
 105          *              mechanism           LDAPString,
 106          *              credentials         OCTET STRING OPTIONAL
 107          *      }
 108          */
 109
 110         tag = ber_scanf( ber, "{imt" /*}*/, &version, &dn, &method );
 111
 112         if ( tag == LBER_ERROR ) {
 113 #ifdef NEW_LOGGING
 114                 LDAP_LOG( OPERATION, ERR,
 115                         "do_bind: conn %d  ber_scanf failed\n", op->o_connid, 0, 0 );
 116 #else
 117                 Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 );
 118 #endif
 119                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
 120                 rs->sr_err = -1;
 121                 goto cleanup;
 122         }
 123
 124         op->o_protocol = version;
 125
 126         if( method != LDAP_AUTH_SASL ) {
 127                 tag = ber_scanf( ber, /*{*/ "m}", &op->orb_cred );
 128
 129         } else {
 130                 tag = ber_scanf( ber, "{m" /*}*/, &mech );
 131
 132                 if ( tag != LBER_ERROR ) {
 133                         ber_len_t len;
 134                         tag = ber_peek_tag( ber, &len );
 135
 136                         if ( tag == LDAP_TAG_LDAPCRED ) {
 137                                 tag = ber_scanf( ber, "m", &op->orb_cred );
 138                         } else {
 139                                 tag = LDAP_TAG_LDAPCRED;
 140                                 op->orb_cred.bv_val = NULL;
 141                                 op->orb_cred.bv_len = 0;
 142                         }
 143
 144                         if ( tag != LBER_ERROR ) {
 145                                 tag = ber_scanf( ber, /*{{*/ "}}" );
 146                         }
 147                 }
 148         }
 149
 150         if ( tag == LBER_ERROR ) {
 151                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
 152                 rs->sr_err = SLAPD_DISCONNECT;
 153                 goto cleanup;
 154         }
 155
 156         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 157 #ifdef NEW_LOGGING
 158                 LDAP_LOG( OPERATION, INFO,
 159                         "do_bind: conn %d  get_ctrls failed\n", op->o_connid, 0, 0 );
 160 #else
 161                 Debug( LDAP_DEBUG_ANY, "do_bind: get_ctrls failed\n", 0, 0, 0 );
 162 #endif
 163                 goto cleanup;
 164         }
 165
 166         /* We use the tmpmemctx here because it speeds up normalization.
 167          * However, we must dup with regular malloc when storing any
 168          * resulting DNs in the op or conn structures.
 169          */
 170         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 171                 op->o_tmpmemctx );
 172         if ( rs->sr_err != LDAP_SUCCESS ) {
 173 #ifdef NEW_LOGGING
 174                 LDAP_LOG( OPERATION, INFO,
 175                         "do_bind: conn %d  invalid dn (%s)\n",
 176                         op->o_connid, dn.bv_val, 0 );
 177 #else
 178                 Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n",
 179                         dn.bv_val, 0, 0 );
 180 #endif
 181                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 182                 goto cleanup;
 183         }
 184
 185         if( method == LDAP_AUTH_SASL ) {
 186 #ifdef NEW_LOGGING
 187                 LDAP_LOG( OPERATION,     DETAIL1,
 188                         "do_sasl_bind: conn %d  dn (%s) mech %s\n",
 189                         op->o_connid, op->o_req_dn.bv_val, mech.bv_val );
 190 #else
 191                 Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n",
 192                         op->o_req_dn.bv_val, mech.bv_val, NULL );
 193 #endif
 194
 195         } else {
 196 #ifdef NEW_LOGGING
 197                 LDAP_LOG( OPERATION, DETAIL1,
 198                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 199                         (unsigned long) version, op->o_req_dn.bv_val,
 200                         (unsigned long) method );
 201 #else
 202                 Debug( LDAP_DEBUG_TRACE,
 203                         "do_bind: version=%ld dn=\"%s\" method=%ld\n",
 204                         (unsigned long) version, op->o_req_dn.bv_val,
 205                         (unsigned long) method );
 206 #endif
 207         }
 208
 209         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu BIND dn=\"%s\" method=%ld\n",
 210             op->o_connid, op->o_opid, op->o_req_dn.bv_val, (unsigned long) method,
 211                 0 );
 212
 213         if ( version < LDAP_VERSION_MIN || version > LDAP_VERSION_MAX ) {
 214 #ifdef NEW_LOGGING
 215                 LDAP_LOG( OPERATION, INFO,
 216                         "do_bind: conn %d  unknown version = %ld\n",
 217                         op->o_connid, (unsigned long)version, 0 );
 218 #else
 219                 Debug( LDAP_DEBUG_ANY, "do_bind: unknown version=%ld\n",
 220                         (unsigned long) version, 0, 0 );
 221 #endif
 222                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 223                         "requested protocol version not supported" );
 224                 goto cleanup;
 225
 226         } else if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 227                 version < LDAP_VERSION3 )
 228         {
 229                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 230                         "historical protocol version requested, use LDAPv3 instead" );
 231                 goto cleanup;
 232         }
 233
 234         /*
 235          * we set connection version regardless of whether bind succeeds or not.
 236          */
 237         ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 238         op->o_conn->c_protocol = version;
 239         ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 240
 241         /* check for inappropriate controls */
 242         if( get_manageDSAit( op ) == SLAP_CRITICAL_CONTROL ) {
 243                 send_ldap_error( op, rs,
 244                         LDAP_UNAVAILABLE_CRITICAL_EXTENSION,
 245                         "manageDSAit control inappropriate" );
 246                 goto cleanup;
 247         }
 248
 249         /* Set the bindop for the benefit of in-directory SASL lookups */
 250         op->o_conn->c_sasl_bindop = op;
 251
 252         if ( method == LDAP_AUTH_SASL ) {
 253                 if ( version < LDAP_VERSION3 ) {
 254 #ifdef NEW_LOGGING
 255                         LDAP_LOG( OPERATION, INFO,
 256                                 "do_bind: conn %d  sasl with LDAPv%ld\n",
 257                                 op->o_connid, (unsigned long)version , 0 );
 258 #else
 259                         Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%ld\n",
 260                                 (unsigned long) version, 0, 0 );
 261 #endif
 262                         send_ldap_discon( op, rs,
 263                                 LDAP_PROTOCOL_ERROR, "SASL bind requires LDAPv3" );
 264                         rs->sr_err = SLAPD_DISCONNECT;
 265                         goto cleanup;
 266                 }
 267
 268                 if( mech.bv_len == 0 ) {
 269 #ifdef NEW_LOGGING
 270                         LDAP_LOG( OPERATION, INFO,
 271                                    "do_bind: conn %d  no SASL mechanism provided\n",
 272                                    op->o_connid, 0, 0 );
 273 #else
 274                         Debug( LDAP_DEBUG_ANY,
 275                                 "do_bind: no sasl mechanism provided\n",
 276                                 0, 0, 0 );
 277 #endif
 278                         send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
 279                                 "no SASL mechanism provided" );
 280                         goto cleanup;
 281                 }
 282
 283                 /* check restrictions */
 284                 if( backend_check_restrictions( op, rs, &mech ) != LDAP_SUCCESS ) {
 285                         send_ldap_result( op, rs );
 286                         goto cleanup;
 287                 }
 288
 289                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 290                 if ( op->o_conn->c_sasl_bind_in_progress ) {
 291                         if( !bvmatch( &op->o_conn->c_sasl_bind_mech, &mech ) ) {
 292                                 /* mechanism changed between bind steps */
 293                                 slap_sasl_reset(op->o_conn);
 294                         }
 295                 } else {
 296                         ber_dupbv(&op->o_conn->c_sasl_bind_mech, &mech);
 297                 }
 298                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 299
 300                 rs->sr_err = slap_sasl_bind( op, rs );
 301
 302                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 303                 if( rs->sr_err == LDAP_SUCCESS ) {
 304                         ber_dupbv(&op->o_conn->c_dn, &op->orb_edn);
 305                         if( op->orb_edn.bv_len != 0 ) {
 306                                 /* edn is always normalized already */
 307                                 ber_dupbv( &op->o_conn->c_ndn, &op->o_conn->c_dn );
 308                         }
 309                         op->o_tmpfree( op->orb_edn.bv_val, op->o_tmpmemctx );
 310                         op->orb_edn.bv_val = NULL;
 311                         op->orb_edn.bv_len = 0;
 312                         op->o_conn->c_authmech = op->o_conn->c_sasl_bind_mech;
 313                         op->o_conn->c_sasl_bind_mech.bv_val = NULL;
 314                         op->o_conn->c_sasl_bind_mech.bv_len = 0;
 315                         op->o_conn->c_sasl_bind_in_progress = 0;
 316
 317                         op->o_conn->c_sasl_ssf = op->orb_ssf;
 318                         if( op->orb_ssf > op->o_conn->c_ssf ) {
 319                                 op->o_conn->c_ssf = op->orb_ssf;
 320                         }
 321
 322                         if( op->o_conn->c_dn.bv_len != 0 ) {
 323                                 ber_len_t max = sockbuf_max_incoming_auth;
 324                                 ber_sockbuf_ctrl( op->o_conn->c_sb,
 325                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 326                         }
 327
 328                         /* log authorization identity */
 329                         Statslog( LDAP_DEBUG_STATS,
 330                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=%s ssf=%d\n",
 331                                 op->o_connid, op->o_opid,
 332                                 op->o_conn->c_dn.bv_val ? op->o_conn->c_dn.bv_val : "<empty>",
 333                                 op->o_conn->c_authmech.bv_val, op->orb_ssf );
 334
 335 #ifdef NEW_LOGGING
 336                         LDAP_LOG( OPERATION, DETAIL1,
 337                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 338                                 op->o_conn->c_authmech.bv_val,
 339                                 op->o_conn->c_dn.bv_val ? op->o_conn->c_dn.bv_val : "<empty>",
 340                                 op->orb_ssf );
 341 #else
 342                         Debug( LDAP_DEBUG_TRACE,
 343                                 "do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
 344                                 op->o_conn->c_authmech.bv_val,
 345                                 op->o_conn->c_dn.bv_val ? op->o_conn->c_dn.bv_val : "<empty>",
 346                                 op->orb_ssf );
 347 #endif
 348
 349                 } else if ( rs->sr_err == LDAP_SASL_BIND_IN_PROGRESS ) {
 350                         op->o_conn->c_sasl_bind_in_progress = 1;
 351
 352                 } else {
 353                         if ( op->o_conn->c_sasl_bind_mech.bv_val ) {
 354                                 free( op->o_conn->c_sasl_bind_mech.bv_val );
 355                                 op->o_conn->c_sasl_bind_mech.bv_val = NULL;
 356                                 op->o_conn->c_sasl_bind_mech.bv_len = 0;
 357                         }
 358                         op->o_conn->c_sasl_bind_in_progress = 0;
 359                 }
 360
 361 #ifdef LDAP_SLAPI
 362 #define pb      op->o_pb
 363                 /*
 364                  * Normally post-operation plugins are called only after the
 365                  * backend operation. Because the front-end performs SASL
 366                  * binds on behalf of the backend, we'll make a special
 367                  * exception to call the post-operation plugins after a
 368                  * SASL bind.
 369                  */
 370                 if ( pb ) {
 371                         slapi_x_pblock_set_operation( pb, op );
 372                         slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
 373                         slapi_pblock_set( pb, SLAPI_BIND_METHOD, (void *)method );
 374                         slapi_pblock_set( pb, SLAPI_BIND_CREDENTIALS, (void *)&op->orb_cred );
 375                         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(0) );
 376                         (void) doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_BIND_FN, pb );
 377                 }
 378 #endif /* LDAP_SLAPI */
 379
 380                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 381
 382                 goto cleanup;
 383
 384         } else {
 385                 /* Not SASL, cancel any in-progress bind */
 386                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 387
 388                 if ( op->o_conn->c_sasl_bind_mech.bv_val != NULL ) {
 389                         free(op->o_conn->c_sasl_bind_mech.bv_val);
 390                         op->o_conn->c_sasl_bind_mech.bv_val = NULL;
 391                         op->o_conn->c_sasl_bind_mech.bv_len = 0;
 392                 }
 393                 op->o_conn->c_sasl_bind_in_progress = 0;
 394
 395                 slap_sasl_reset( op->o_conn );
 396                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 397         }
 398
 399         if ( method == LDAP_AUTH_SIMPLE ) {
 400                 ber_str2bv( "SIMPLE", sizeof("SIMPLE")-1, 0, &mech );
 401                 /* accept "anonymous" binds */
 402                 if ( op->orb_cred.bv_len == 0 || op->o_req_ndn.bv_len == 0 ) {
 403                         rs->sr_err = LDAP_SUCCESS;
 404
 405                         if( op->orb_cred.bv_len &&
 406                                 !( global_allows & SLAP_ALLOW_BIND_ANON_CRED ))
 407                         {
 408                                 /* cred is not empty, disallow */
 409                                 rs->sr_err = LDAP_INVALID_CREDENTIALS;
 410
 411                         } else if ( op->o_req_ndn.bv_len &&
 412                                 !( global_allows & SLAP_ALLOW_BIND_ANON_DN ))
 413                         {
 414                                 /* DN is not empty, disallow */
 415                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 416                                 rs->sr_text =
 417                                         "unauthenticated bind (DN with no password) disallowed";
 418
 419                         } else if ( global_disallows & SLAP_DISALLOW_BIND_ANON ) {
 420                                 /* disallow */
 421                                 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
 422                                 rs->sr_text = "anonymous bind disallowed";
 423
 424                         } else {
 425                                 backend_check_restrictions( op, rs, &mech );
 426                         }
 427
 428                         /*
 429                          * we already forced connection to "anonymous",
 430                          * just need to send success
 431                          */
 432                         send_ldap_result( op, rs );
 433 #ifdef NEW_LOGGING
 434                         LDAP_LOG( OPERATION, DETAIL1,
 435                                    "do_bind: conn %d  v%d anonymous bind\n",
 436                                    op->o_connid, version , 0 );
 437 #else
 438                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d anonymous bind\n",
 439                                 version, 0, 0 );
 440 #endif
 441                         goto cleanup;
 442
 443                 } else if ( global_disallows & SLAP_DISALLOW_BIND_SIMPLE ) {
 444                         /* disallow simple authentication */
 445                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 446                         rs->sr_text = "unwilling to perform simple authentication";
 447
 448                         send_ldap_result( op, rs );
 449 #ifdef NEW_LOGGING
 450                         LDAP_LOG( OPERATION, INFO,
 451                                 "do_bind: conn %d  v%d simple bind(%s) disallowed\n",
 452                                 op->o_connid, version, op->o_req_ndn.bv_val );
 453 #else
 454                         Debug( LDAP_DEBUG_TRACE,
 455                                 "do_bind: v%d simple bind(%s) disallowed\n",
 456                                 version, op->o_req_ndn.bv_val, 0 );
 457 #endif
 458                         goto cleanup;
 459                 }
 460
 461 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 462         } else if ( method == LDAP_AUTH_KRBV41 || method == LDAP_AUTH_KRBV42 ) {
 463                 if ( global_disallows & SLAP_DISALLOW_BIND_KRBV4 ) {
 464                         /* disallow simple authentication */
 465                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 466                         rs->sr_text = "unwilling to perform Kerberos V4 bind";
 467
 468                         send_ldap_result( op, rs );
 469 #ifdef NEW_LOGGING
 470                         LDAP_LOG( OPERATION, DETAIL1,
 471                                 "do_bind: conn %d  v%d Kerberos V4 bind\n",
 472                                 op->o_connid, version , 0 );
 473 #else
 474                         Debug( LDAP_DEBUG_TRACE, "do_bind: v%d Kerberos V4 bind\n",
 475                                 version, 0, 0 );
 476 #endif
 477                         goto cleanup;
 478                 }
 479                 ber_str2bv( "KRBV4", sizeof("KRBV4")-1, 0, &mech );
 480 #endif
 481
 482         } else {
 483                 rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
 484                 rs->sr_text = "unknown authentication method";
 485
 486                 send_ldap_result( op, rs );
 487 #ifdef NEW_LOGGING
 488                 LDAP_LOG( OPERATION, INFO,
 489                         "do_bind: conn %ld  v%d unknown authentication method (%ld)\n",
 490                         op->o_connid, version, method );
 491 #else
 492                 Debug( LDAP_DEBUG_TRACE,
 493                         "do_bind: v%d unknown authentication method (%ld)\n",
 494                         version, method, 0 );
 495 #endif
 496                 goto cleanup;
 497         }
 498
 499         /*
 500          * We could be serving multiple database backends.  Select the
 501          * appropriate one, or send a referral to our "referral server"
 502          * if we don't hold it.
 503          */
 504
 505         if ( (op->o_bd = select_backend( &op->o_req_ndn, 0, 0 )) == NULL ) {
 506                 if ( default_referral ) {
 507                         rs->sr_ref = referral_rewrite( default_referral,
 508                                 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 509                         if (!rs->sr_ref) rs->sr_ref = default_referral;
 510
 511                         rs->sr_err = LDAP_REFERRAL;
 512                         send_ldap_result( op, rs );
 513
 514                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 515
 516                 } else {
 517                         /* noSuchObject is not allowed to be returned by bind */
 518                         rs->sr_err = LDAP_INVALID_CREDENTIALS;
 519                         send_ldap_result( op, rs );
 520                 }
 521
 522                 goto cleanup;
 523         }
 524
 525         /* check restrictions */
 526         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 527                 send_ldap_result( op, rs );
 528                 goto cleanup;
 529         }
 530
 531 #if defined( LDAP_SLAPI )
 532         if ( pb ) {
 533                 int rc;
 534                 slapi_x_pblock_set_operation( pb, op );
 535                 slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
 536                 slapi_pblock_set( pb, SLAPI_BIND_METHOD, (void *)method );
 537                 slapi_pblock_set( pb, SLAPI_BIND_CREDENTIALS, (void *)&op->orb_cred );
 538                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(0) );
 539                 slapi_pblock_set( pb, SLAPI_CONN_DN, (void *)(0) );
 540
 541                 rc = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_BIND_FN, pb );
 542
 543 #ifdef NEW_LOGGING
 544                 LDAP_LOG( OPERATION, INFO,
 545                         "do_bind: Bind preoperation plugin returned %d\n",
 546                         rs->sr_err, 0, 0);
 547 #else
 548                 Debug(LDAP_DEBUG_TRACE,
 549                         "do_bind: Bind preoperation plugin returned %d.\n",
 550                         rs->sr_err, 0, 0);
 551 #endif
 552
 553                 switch ( rc ) {
 554                 case SLAPI_BIND_SUCCESS:
 555                         /* Continue with backend processing */
 556                         break;
 557                 case SLAPI_BIND_FAIL:
 558                         /* Failure, server sends result */
 559                         rs->sr_err = LDAP_INVALID_CREDENTIALS;
 560                         send_ldap_result( op, rs );
 561                         goto cleanup;
 562                         break;
 563                 case SLAPI_BIND_ANONYMOUS:
 564                         /* SLAPI_BIND_ANONYMOUS is undocumented XXX */
 565                 default:
 566                         /* Authoritative, plugin sent result, or no plugins called. */
 567                         if ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 568                                 (void *)&rs->sr_err) != 0 )
 569                         {
 570                                 rs->sr_err = LDAP_OTHER;
 571                         }
 572
 573                         op->orb_edn.bv_val = NULL;
 574                         op->orb_edn.bv_len = 0;
 575
 576                         if ( rs->sr_err == LDAP_SUCCESS ) {
 577                                 slapi_pblock_get( pb, SLAPI_CONN_DN, (void *)&op->orb_edn.bv_val );
 578                                 if ( op->orb_edn.bv_val == NULL ) {
 579                                         if ( rc == 1 ) {
 580                                                 /* No plugins were called; continue. */
 581                                                 break;
 582                                         }
 583                                 } else {
 584                                         op->orb_edn.bv_len = strlen( op->orb_edn.bv_val );
 585                                 }
 586                                 rs->sr_err = dnPrettyNormal( NULL, &op->orb_edn,
 587                                         &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
 588                                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 589                                 ber_dupbv(&op->o_conn->c_dn, &op->o_req_dn);
 590                                 ber_dupbv(&op->o_conn->c_ndn, &op->o_req_ndn);
 591                                 op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 592                                 op->o_req_dn.bv_val = NULL;
 593                                 op->o_req_dn.bv_len = 0;
 594                                 op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 595                                 op->o_req_ndn.bv_val = NULL;
 596                                 op->o_req_ndn.bv_len = 0;
 597                                 if ( op->o_conn->c_dn.bv_len != 0 ) {
 598                                         ber_len_t max = sockbuf_max_incoming_auth;
 599                                         ber_sockbuf_ctrl( op->o_conn->c_sb,
 600                                                 LBER_SB_OPT_SET_MAX_INCOMING, &max );
 601                                 }
 602                                 /* log authorization identity */
 603                                 Statslog( LDAP_DEBUG_STATS,
 604                                         "conn=%lu op=%lu BIND dn=\"%s\" mech=%s (SLAPI) ssf=0\n",
 605                                         op->o_connid, op->o_opid,
 606                                         op->o_conn->c_dn.bv_val ? op->o_conn->c_dn.bv_val : "<empty>",
 607                                         mech.bv_val, 0 );
 608                                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 609                         }
 610                         goto cleanup;
 611                         break;
 612                 }
 613         }
 614 #endif /* defined( LDAP_SLAPI ) */
 615
 616         if( op->o_bd->be_bind ) {
 617                 op->orb_method = method;
 618                 rs->sr_err = (op->o_bd->be_bind)( op, rs );
 619
 620                 if ( rs->sr_err == 0 ) {
 621                         ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
 622
 623                         if( op->o_conn->c_authz_backend == NULL ) {
 624                                 op->o_conn->c_authz_backend = op->o_bd;
 625                         }
 626
 627                         /* be_bind returns regular/global edn */
 628                         if( op->orb_edn.bv_len ) {
 629                                 op->o_conn->c_dn = op->orb_edn;
 630                         } else {
 631                                 ber_dupbv(&op->o_conn->c_dn, &op->o_req_dn);
 632                         }
 633
 634                         ber_dupbv( &op->o_conn->c_ndn, &op->o_req_ndn );
 635
 636                         if( op->o_conn->c_dn.bv_len != 0 ) {
 637                                 ber_len_t max = sockbuf_max_incoming_auth;
 638                                 ber_sockbuf_ctrl( op->o_conn->c_sb,
 639                                         LBER_SB_OPT_SET_MAX_INCOMING, &max );
 640                         }
 641
 642                         /* log authorization identity */
 643                         Statslog( LDAP_DEBUG_STATS,
 644                                 "conn=%lu op=%lu BIND dn=\"%s\" mech=%s ssf=0\n",
 645                                 op->o_connid, op->o_opid,
 646                                 op->o_conn->c_dn.bv_val, mech.bv_val, 0 );
 647
 648 #ifdef NEW_LOGGING
 649                         LDAP_LOG( OPERATION, DETAIL1,
 650                                 "do_bind: v%d bind: \"%s\" to \"%s\" \n",
 651                                 version, op->o_conn->c_dn.bv_val, op->o_conn->c_dn.bv_val );
 652 #else
 653                         Debug( LDAP_DEBUG_TRACE,
 654                                 "do_bind: v%d bind: \"%s\" to \"%s\"\n",
 655                                 version, dn.bv_val, op->o_conn->c_dn.bv_val );
 656 #endif
 657
 658                         ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
 659
 660                         /* send this here to avoid a race condition */
 661                         send_ldap_result( op, rs );
 662
 663                 } else if (op->orb_edn.bv_val != NULL) {
 664                         free( op->orb_edn.bv_val );
 665                 }
 666
 667         } else {
 668                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 669                         "operation not supported within naming context" );
 670         }
 671
 672 #if defined( LDAP_SLAPI )
 673         if ( pb && doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_BIND_FN, pb ) < 0 ) {
 674 #ifdef NEW_LOGGING
 675                 LDAP_LOG( OPERATION, INFO,
 676                         "do_bind: Bind postoperation plugins failed\n",
 677                         0, 0, 0);
 678 #else
 679                 Debug(LDAP_DEBUG_TRACE,
 680                         "do_bind: Bind postoperation plugins failed.\n",
 681                         0, 0, 0);
 682 #endif
 683         }
 684 #endif /* defined( LDAP_SLAPI ) */
 685
 686 cleanup:
 687         if ( rs->sr_err == LDAP_SUCCESS ) {
 688                 if ( method != LDAP_AUTH_SASL ) {
 689                         ber_dupbv( &op->o_conn->c_authmech, &mech );
 690                 }
 691                 op->o_conn->c_authtype = method;
 692         }
 693
 694         op->o_conn->c_sasl_bindop = NULL;
 695
 696         if( op->o_req_dn.bv_val != NULL ) {
 697                 sl_free( op->o_req_dn.bv_val, op->o_tmpmemctx );
 698                 op->o_req_dn.bv_val = NULL;
 699         }
 700         if( op->o_req_ndn.bv_val != NULL ) {
 701                 sl_free( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 702                 op->o_req_ndn.bv_val = NULL;
 703         }
 704
 705         return rs->sr_err;
 706 }