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

   1 /* result.c - routines to send ldap results, errors, and referrals */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2008 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/socket.h>
  32 #include <ac/errno.h>
  33 #include <ac/string.h>
  34 #include <ac/ctype.h>
  35 #include <ac/time.h>
  36 #include <ac/unistd.h>
  37
  38 #include "slap.h"
  39
  40 const struct berval slap_dummy_bv = BER_BVNULL;
  41
  42 int slap_null_cb( Operation *op, SlapReply *rs )
  43 {
  44         return 0;
  45 }
  46
  47 int slap_freeself_cb( Operation *op, SlapReply *rs )
  48 {
  49         assert( op->o_callback != NULL );
  50
  51         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  52         op->o_callback = NULL;
  53
  54         return SLAP_CB_CONTINUE;
  55 }
  56
  57 static char *v2ref( BerVarray ref, const char *text )
  58 {
  59         size_t len = 0, i = 0;
  60         char *v2;
  61
  62         if(ref == NULL) {
  63                 if (text) {
  64                         return ch_strdup(text);
  65                 } else {
  66                         return NULL;
  67                 }
  68         }
  69
  70         if ( text != NULL ) {
  71                 len = strlen( text );
  72                 if (text[len-1] != '\n') {
  73                     i = 1;
  74                 }
  75         }
  76
  77         v2 = ch_malloc( len+i+sizeof("Referral:") );
  78
  79         if( text != NULL ) {
  80                 strcpy(v2, text);
  81                 if( i ) {
  82                         v2[len++] = '\n';
  83                 }
  84         }
  85         strcpy( v2+len, "Referral:" );
  86         len += sizeof("Referral:");
  87
  88         for( i=0; ref[i].bv_val != NULL; i++ ) {
  89                 v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
  90                 v2[len-1] = '\n';
  91                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
  92                 len += ref[i].bv_len;
  93                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
  94                         ++len;
  95                 }
  96         }
  97
  98         v2[len-1] = '\0';
  99         return v2;
 100 }
 101
 102 ber_tag_t
 103 slap_req2res( ber_tag_t tag )
 104 {
 105         switch( tag ) {
 106         case LDAP_REQ_ADD:
 107         case LDAP_REQ_BIND:
 108         case LDAP_REQ_COMPARE:
 109         case LDAP_REQ_EXTENDED:
 110         case LDAP_REQ_MODIFY:
 111         case LDAP_REQ_MODRDN:
 112                 tag++;
 113                 break;
 114
 115         case LDAP_REQ_DELETE:
 116                 tag = LDAP_RES_DELETE;
 117                 break;
 118
 119         case LDAP_REQ_ABANDON:
 120         case LDAP_REQ_UNBIND:
 121                 tag = LBER_SEQUENCE;
 122                 break;
 123
 124         case LDAP_REQ_SEARCH:
 125                 tag = LDAP_RES_SEARCH_RESULT;
 126                 break;
 127
 128         default:
 129                 tag = LBER_SEQUENCE;
 130         }
 131
 132         return tag;
 133 }
 134
 135 static long send_ldap_ber(
 136         Connection *conn,
 137         BerElement *ber )
 138 {
 139         ber_len_t bytes;
 140
 141         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 142
 143         /* write only one pdu at a time - wait til it's our turn */
 144         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 145
 146         /* lock the connection */
 147         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 148
 149         /* write the pdu */
 150         while( 1 ) {
 151                 int err;
 152
 153                 if ( connection_state_closing( conn ) ) {
 154                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 155                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 156
 157                         return 0;
 158                 }
 159
 160                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 161                         break;
 162                 }
 163
 164                 err = sock_errno();
 165
 166                 /*
 167                  * we got an error.  if it's ewouldblock, we need to
 168                  * wait on the socket being writable.  otherwise, figure
 169                  * it's a hard error and return.
 170                  */
 171
 172                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 173                     err, sock_errstr(err), 0 );
 174
 175                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 176                         connection_closing( conn, "connection lost on write" );
 177
 178                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 179                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 180
 181                         return( -1 );
 182                 }
 183
 184                 /* wait for socket to be write-ready */
 185                 conn->c_writewaiter = 1;
 186                 slapd_set_write( conn->c_sd, 1 );
 187
 188                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 189                 conn->c_writewaiter = 0;
 190         }
 191
 192         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 193         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 194
 195         return bytes;
 196 }
 197
 198 static int
 199 send_ldap_control( BerElement *ber, LDAPControl *c )
 200 {
 201         int rc;
 202
 203         assert( c != NULL );
 204
 205         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 206
 207         if( c->ldctl_iscritical ) {
 208                 rc = ber_printf( ber, "b",
 209                         (ber_int_t) c->ldctl_iscritical ) ;
 210                 if( rc == -1 ) return rc;
 211         }
 212
 213         if( c->ldctl_value.bv_val != NULL ) {
 214                 rc = ber_printf( ber, "O", &c->ldctl_value );
 215                 if( rc == -1 ) return rc;
 216         }
 217
 218         rc = ber_printf( ber, /*{*/"N}" );
 219         if( rc == -1 ) return rc;
 220
 221         return 0;
 222 }
 223
 224 static int
 225 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 226 {
 227         int rc;
 228
 229         if( c == NULL )
 230                 return 0;
 231
 232         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 233         if( rc == -1 ) return rc;
 234
 235         for( ; *c != NULL; c++) {
 236                 rc = send_ldap_control( ber, *c );
 237                 if( rc == -1 ) return rc;
 238         }
 239
 240 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 241         /* this is a hack to avoid having to modify op->s_ctrls */
 242         if( o->o_sortedresults ) {
 243                 BerElementBuffer berbuf;
 244                 BerElement *sber = (BerElement *) &berbuf;
 245                 LDAPControl sorted;
 246                 BER_BVZERO( &sorted.ldctl_value );
 247                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 248                 sorted.ldctl_iscritical = 0;
 249
 250                 ber_init2( sber, NULL, LBER_USE_DER );
 251
 252                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 253
 254                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 255                         return -1;
 256                 }
 257
 258                 (void) ber_free_buf( ber );
 259
 260                 rc = send_ldap_control( ber, &sorted );
 261                 if( rc == -1 ) return rc;
 262         }
 263 #endif
 264
 265         rc = ber_printf( ber, /*{*/"N}" );
 266
 267         return rc;
 268 }
 269
 270 /*
 271  * slap_response_play()
 272  *
 273  * plays the callback list; rationale: a callback can
 274  *   - remove itself from the list, by setting op->o_callback = NULL;
 275  *     malloc()'ed callbacks should free themselves from inside the
 276  *     sc_response() function.
 277  *   - replace itself with another (list of) callback(s), by setting
 278  *     op->o_callback = a new (list of) callback(s); in this case, it
 279  *     is the callback's responsibility to to append existing subsequent
 280  *     callbacks to the end of the list that is passed to the sc_response()
 281  *     function.
 282  *   - modify the list of subsequent callbacks by modifying the value
 283  *     of the sc_next field from inside the sc_response() function; this
 284  *     case does not require any handling from inside slap_response_play()
 285  *
 286  * To stop execution of the playlist, the sc_response() function must return
 287  * a value different from SLAP_SC_CONTINUE.
 288  *
 289  * The same applies to slap_cleanup_play(); only, there is no means to stop
 290  * execution of the playlist, since all cleanup functions must be called.
 291  */
 292 static int
 293 slap_response_play(
 294         Operation *op,
 295         SlapReply *rs )
 296 {
 297         int rc;
 298
 299         slap_callback   *sc = op->o_callback, **scp;
 300
 301         rc = SLAP_CB_CONTINUE;
 302         for ( scp = &sc; *scp; ) {
 303                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 304
 305                 op->o_callback = *scp;
 306                 if ( op->o_callback->sc_response ) {
 307                         rc = op->o_callback->sc_response( op, rs );
 308                         if ( op->o_callback == NULL ) {
 309                                 /* the callback has been removed;
 310                                  * repair the list */
 311                                 *scp = sc_next;
 312                                 sc_nextp = scp;
 313
 314                         } else if ( op->o_callback != *scp ) {
 315                                 /* a new callback has been inserted
 316                                  * in place of the existing one; repair the list */
 317                                 *scp = op->o_callback;
 318                                 sc_nextp = scp;
 319                         }
 320                         if ( rc != SLAP_CB_CONTINUE ) break;
 321                 }
 322                 scp = sc_nextp;
 323         }
 324
 325         op->o_callback = sc;
 326         return rc;
 327 }
 328
 329 static int
 330 slap_cleanup_play(
 331         Operation *op,
 332         SlapReply *rs )
 333 {
 334         slap_callback   *sc = op->o_callback, **scp;
 335
 336         for ( scp = &sc; *scp; ) {
 337                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 338
 339                 op->o_callback = *scp;
 340                 if ( op->o_callback->sc_cleanup ) {
 341                         (void)op->o_callback->sc_cleanup( op, rs );
 342                         if ( op->o_callback == NULL ) {
 343                                 /* the callback has been removed;
 344                                  * repair the list */
 345                                 *scp = sc_next;
 346                                 sc_nextp = scp;
 347
 348                         } else if ( op->o_callback != *scp ) {
 349                                 /* a new callback has been inserted
 350                                  * after the existing one; repair the list */
 351                                 /* a new callback has been inserted
 352                                  * in place of the existing one; repair the list */
 353                                 *scp = op->o_callback;
 354                                 sc_nextp = scp;
 355                         }
 356                         /* don't care about the result; do all cleanup */
 357                 }
 358                 scp = sc_nextp;
 359         }
 360
 361         op->o_callback = sc;
 362         return LDAP_SUCCESS;
 363 }
 364
 365 static int
 366 send_ldap_response(
 367         Operation *op,
 368         SlapReply *rs )
 369 {
 370         BerElementBuffer berbuf;
 371         BerElement      *ber = (BerElement *) &berbuf;
 372         int             rc = LDAP_SUCCESS;
 373         long    bytes;
 374
 375         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 376                 rc = SLAPD_ABANDON;
 377                 goto clean2;
 378         }
 379
 380         if ( op->o_callback ) {
 381                 rc = slap_response_play( op, rs );
 382                 if ( rc != SLAP_CB_CONTINUE ) {
 383                         goto clean2;
 384                 }
 385         }
 386
 387 #ifdef LDAP_CONNECTIONLESS
 388         if (op->o_conn && op->o_conn->c_is_udp)
 389                 ber = op->o_res_ber;
 390         else
 391 #endif
 392         {
 393                 ber_init_w_nullc( ber, LBER_USE_DER );
 394                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 395         }
 396
 397         Debug( LDAP_DEBUG_TRACE,
 398                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 399                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 400
 401         if( rs->sr_ref ) {
 402                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 403                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 404                         NULL, NULL );
 405         }
 406
 407 #ifdef LDAP_CONNECTIONLESS
 408         if (op->o_conn && op->o_conn->c_is_udp &&
 409                 op->o_protocol == LDAP_VERSION2 )
 410         {
 411                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 412                         rs->sr_tag, rs->sr_err,
 413                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 414                 rs->sr_text == NULL ? "" : rs->sr_text );
 415         } else
 416 #endif
 417         if ( rs->sr_type == REP_INTERMEDIATE ) {
 418             rc = ber_printf( ber, "{it{" /*"}}"*/,
 419                         rs->sr_msgid, rs->sr_tag );
 420
 421         } else {
 422             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 423                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 424                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 425                 rs->sr_text == NULL ? "" : rs->sr_text );
 426         }
 427
 428         if( rc != -1 ) {
 429                 if ( rs->sr_ref != NULL ) {
 430                         assert( rs->sr_err == LDAP_REFERRAL );
 431                         rc = ber_printf( ber, "t{W}",
 432                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 433                 } else {
 434                         assert( rs->sr_err != LDAP_REFERRAL );
 435                 }
 436         }
 437
 438         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 439                 rc = ber_printf( ber, "tO",
 440                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 441         }
 442
 443         if( rc != -1 &&
 444                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 445         {
 446                 if ( rs->sr_rspoid != NULL ) {
 447                         rc = ber_printf( ber, "ts",
 448                                 rs->sr_type == REP_EXTENDED
 449                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 450                                 rs->sr_rspoid );
 451                 }
 452                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 453                         rc = ber_printf( ber, "tO",
 454                                 rs->sr_type == REP_EXTENDED
 455                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 456                                 rs->sr_rspdata );
 457                 }
 458         }
 459
 460         if( rc != -1 ) {
 461                 rc = ber_printf( ber, /*"{"*/ "N}" );
 462         }
 463
 464         if( rc != -1 ) {
 465                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 466         }
 467
 468         if( rc != -1 ) {
 469                 rc = ber_printf( ber, /*"{"*/ "N}" );
 470         }
 471
 472 #ifdef LDAP_CONNECTIONLESS
 473         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 474                 && rc != -1 )
 475         {
 476                 rc = ber_printf( ber, /*"{"*/ "N}" );
 477         }
 478 #endif
 479
 480         if ( rc == -1 ) {
 481                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 482
 483 #ifdef LDAP_CONNECTIONLESS
 484                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 485 #endif
 486                 {
 487                         ber_free_buf( ber );
 488                 }
 489                 goto cleanup;
 490         }
 491
 492         /* send BER */
 493         bytes = send_ldap_ber( op->o_conn, ber );
 494 #ifdef LDAP_CONNECTIONLESS
 495         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 496 #endif
 497         {
 498                 ber_free_buf( ber );
 499         }
 500
 501         if ( bytes < 0 ) {
 502                 Debug( LDAP_DEBUG_ANY,
 503                         "send_ldap_response: ber write failed\n",
 504                         0, 0, 0 );
 505
 506                 goto cleanup;
 507         }
 508
 509         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 510         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 511         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 512         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 513
 514 cleanup:;
 515         /* Tell caller that we did this for real, as opposed to being
 516          * overridden by a callback
 517          */
 518         rc = SLAP_CB_CONTINUE;
 519
 520 clean2:;
 521         if ( op->o_callback ) {
 522                 (void)slap_cleanup_play( op, rs );
 523         }
 524
 525         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 526                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 527                 if ( rs->sr_matched ) {
 528                         free( (char *)rs->sr_matched );
 529                         rs->sr_matched = NULL;
 530                 }
 531         }
 532
 533         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 534                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 535                 if ( rs->sr_ref ) {
 536                         ber_bvarray_free( rs->sr_ref );
 537                         rs->sr_ref = NULL;
 538                 }
 539         }
 540
 541         return rc;
 542 }
 543
 544
 545 void
 546 send_ldap_disconnect( Operation *op, SlapReply *rs )
 547 {
 548 #define LDAP_UNSOLICITED_ERROR(e) \
 549         (  (e) == LDAP_PROTOCOL_ERROR \
 550         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 551         || (e) == LDAP_UNAVAILABLE )
 552
 553         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 554
 555         rs->sr_type = REP_EXTENDED;
 556
 557         Debug( LDAP_DEBUG_TRACE,
 558                 "send_ldap_disconnect %d:%s\n",
 559                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 560
 561         if ( op->o_protocol < LDAP_VERSION3 ) {
 562                 rs->sr_rspoid = NULL;
 563                 rs->sr_tag = slap_req2res( op->o_tag );
 564                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 565
 566         } else {
 567                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 568                 rs->sr_tag = LDAP_RES_EXTENDED;
 569                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 570         }
 571
 572         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 573                 Statslog( LDAP_DEBUG_STATS,
 574                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 575                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 576                         rs->sr_text ? rs->sr_text : "", 0 );
 577         }
 578 }
 579
 580 void
 581 slap_send_ldap_result( Operation *op, SlapReply *rs )
 582 {
 583         char *tmp = NULL;
 584         const char *otext = rs->sr_text;
 585         BerVarray oref = rs->sr_ref;
 586
 587         rs->sr_type = REP_RESULT;
 588
 589         /* Propagate Abandons so that cleanup callbacks can be processed */
 590         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 591                 goto abandon;
 592
 593         assert( !LDAP_API_ERROR( rs->sr_err ) );
 594
 595         Debug( LDAP_DEBUG_TRACE,
 596                 "send_ldap_result: %s p=%d\n",
 597                 op->o_log_prefix, op->o_protocol, 0 );
 598
 599         Debug( LDAP_DEBUG_ARGS,
 600                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 601                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 602                 rs->sr_text ? rs->sr_text : "" );
 603
 604
 605         if( rs->sr_ref ) {
 606                 Debug( LDAP_DEBUG_ARGS,
 607                         "send_ldap_result: referral=\"%s\"\n",
 608                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 609                         NULL, NULL );
 610         }
 611
 612         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 613
 614         if ( rs->sr_err == LDAP_REFERRAL ) {
 615                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 616
 617                 if( rs->sr_ref == NULL ) {
 618                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 619                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 620                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 621                 }
 622         }
 623
 624         if ( op->o_protocol < LDAP_VERSION3 ) {
 625                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 626                 rs->sr_text = tmp;
 627                 rs->sr_ref = NULL;
 628         }
 629
 630 abandon:
 631         rs->sr_tag = slap_req2res( op->o_tag );
 632         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 633
 634         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 635                 if ( rs->sr_ref == NULL ) {
 636                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 637                         ber_bvarray_free( oref );
 638                 }
 639                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 640         }
 641
 642         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 643                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 644                         char nbuf[64];
 645                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 646                                 rs->sr_err, rs->sr_nentries );
 647
 648                         Statslog( LDAP_DEBUG_STATS,
 649                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 650                                 op->o_log_prefix, rs->sr_tag, nbuf,
 651                                 rs->sr_text ? rs->sr_text : "", 0 );
 652                 } else {
 653                         Statslog( LDAP_DEBUG_STATS,
 654                                 "%s RESULT tag=%lu err=%d text=%s\n",
 655                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 656                                 rs->sr_text ? rs->sr_text : "", 0 );
 657                 }
 658         }
 659
 660         if( tmp != NULL ) ch_free(tmp);
 661         rs->sr_text = otext;
 662         rs->sr_ref = oref;
 663 }
 664
 665 void
 666 send_ldap_sasl( Operation *op, SlapReply *rs )
 667 {
 668         rs->sr_type = REP_SASL;
 669         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 670                 rs->sr_err,
 671                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 672
 673         rs->sr_tag = slap_req2res( op->o_tag );
 674         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 675
 676         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 677                 Statslog( LDAP_DEBUG_STATS,
 678                         "%s RESULT tag=%lu err=%d text=%s\n",
 679                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 680                         rs->sr_text ? rs->sr_text : "", 0 );
 681         }
 682 }
 683
 684 void
 685 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 686 {
 687         rs->sr_type = REP_EXTENDED;
 688
 689         Debug( LDAP_DEBUG_TRACE,
 690                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 691                 rs->sr_err,
 692                 rs->sr_rspoid ? rs->sr_rspoid : "",
 693                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 694
 695         rs->sr_tag = slap_req2res( op->o_tag );
 696         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 697
 698         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 699                 Statslog( LDAP_DEBUG_STATS,
 700                         "%s RESULT oid=%s err=%d text=%s\n",
 701                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 702                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 703         }
 704 }
 705
 706 void
 707 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 708 {
 709         rs->sr_type = REP_INTERMEDIATE;
 710         Debug( LDAP_DEBUG_TRACE,
 711                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 712                 rs->sr_err,
 713                 rs->sr_rspoid ? rs->sr_rspoid : "",
 714                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 715         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 716         rs->sr_msgid = op->o_msgid;
 717         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 718                 Statslog( LDAP_DEBUG_STATS2,
 719                         "%s INTERM oid=%s\n",
 720                         op->o_log_prefix,
 721                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 722         }
 723 }
 724
 725 /*
 726  * returns:
 727  *
 728  * LDAP_SUCCESS                 entry sent
 729  * LDAP_OTHER                   entry not sent (other)
 730  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 731  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 732  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 733  */
 734
 735 int
 736 slap_send_search_entry( Operation *op, SlapReply *rs )
 737 {
 738         BerElementBuffer berbuf;
 739         BerElement      *ber = (BerElement *) &berbuf;
 740         Attribute       *a;
 741         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 742         char            *edn;
 743         int             userattrs;
 744         AccessControlState acl_state = ACL_STATE_INIT;
 745         int                      attrsonly;
 746         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 747
 748         /* a_flags: array of flags telling if the i-th element will be
 749          *          returned or filtered out
 750          * e_flags: array of a_flags
 751          */
 752         char **e_flags = NULL;
 753
 754         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 755                 return LDAP_SIZELIMIT_EXCEEDED;
 756         }
 757
 758         /* Every 64 entries, check for thread pool pause */
 759         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 760                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 761         {
 762                 return LDAP_BUSY;
 763         }
 764
 765         rs->sr_type = REP_SEARCH;
 766
 767         /* eventually will loop through generated operational attribute types
 768          * currently implemented types include:
 769          *      entryDN, subschemaSubentry, and hasSubordinates */
 770         /* NOTE: moved before overlays callback circling because
 771          * they may modify entry and other stuff in rs */
 772         /* check for special all operational attributes ("+") type */
 773         /* FIXME: maybe we could set this flag at the operation level;
 774          * however, in principle the caller of send_search_entry() may
 775          * change the attribute list at each call */
 776         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 777
 778         rc = backend_operational( op, rs );
 779         if ( rc ) {
 780                 goto error_return;
 781         }
 782
 783         if ( op->o_callback ) {
 784                 rc = slap_response_play( op, rs );
 785                 if ( rc != SLAP_CB_CONTINUE ) {
 786                         goto error_return;
 787                 }
 788         }
 789
 790         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 791                 op->o_connid, rs->sr_entry->e_name.bv_val,
 792                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 793
 794         attrsonly = op->ors_attrsonly;
 795
 796         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 797                 Debug( LDAP_DEBUG_ACL,
 798                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 799                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 800
 801                 rc = LDAP_INSUFFICIENT_ACCESS;
 802                 goto error_return;
 803         }
 804
 805         edn = rs->sr_entry->e_nname.bv_val;
 806
 807         if ( op->o_res_ber ) {
 808                 /* read back control or LDAP_CONNECTIONLESS */
 809             ber = op->o_res_ber;
 810         } else {
 811                 struct berval   bv;
 812
 813                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 814                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 815
 816                 ber_init2( ber, &bv, LBER_USE_DER );
 817                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 818         }
 819
 820 #ifdef LDAP_CONNECTIONLESS
 821         if ( op->o_conn && op->o_conn->c_is_udp ) {
 822                 /* CONNECTIONLESS */
 823                 if ( op->o_protocol == LDAP_VERSION2 ) {
 824                 rc = ber_printf(ber, "t{O{" /*}}*/,
 825                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 826                 } else {
 827                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 828                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 829                 }
 830         } else
 831 #endif
 832         if ( op->o_res_ber ) {
 833                 /* read back control */
 834             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 835         } else {
 836             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 837                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 838         }
 839
 840         if ( rc == -1 ) {
 841                 Debug( LDAP_DEBUG_ANY,
 842                         "send_search_entry: conn %lu  ber_printf failed\n",
 843                         op->o_connid, 0, 0 );
 844
 845                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 846                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 847                 rc = rs->sr_err;
 848                 goto error_return;
 849         }
 850
 851         /* check for special all user attributes ("*") type */
 852         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 853
 854         /* create an array of arrays of flags. Each flag corresponds
 855          * to particular value of attribute and equals 1 if value matches
 856          * to ValuesReturnFilter or 0 if not
 857          */
 858         if ( op->o_vrFilter != NULL ) {
 859                 int     k = 0;
 860                 size_t  size;
 861
 862                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 863                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 864                 }
 865
 866                 size = i * sizeof(char *) + k;
 867                 if ( size > 0 ) {
 868                         char    *a_flags;
 869                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 870                         if( e_flags == NULL ) {
 871                         Debug( LDAP_DEBUG_ANY,
 872                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 873                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 874                                 ber_free( ber, 1 );
 875
 876                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 877                                 goto error_return;
 878                         }
 879                         a_flags = (char *)(e_flags + i);
 880                         memset( a_flags, 0, k );
 881                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 882                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 883                                 e_flags[i] = a_flags;
 884                                 a_flags += j;
 885                         }
 886
 887                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 888                         if ( rc == -1 ) {
 889                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 890                                         "conn %lu matched values filtering failed\n",
 891                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 892                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 893                                 send_ldap_error( op, rs, LDAP_OTHER,
 894                                         "matched values filtering error" );
 895                                 rc = rs->sr_err;
 896                                 goto error_return;
 897                         }
 898                 }
 899         }
 900
 901         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 902                 AttributeDescription *desc = a->a_desc;
 903                 int finish = 0;
 904
 905                 if ( rs->sr_attrs == NULL ) {
 906                         /* all user attrs request, skip operational attributes */
 907                         if( is_at_operational( desc->ad_type ) ) {
 908                                 continue;
 909                         }
 910
 911                 } else {
 912                         /* specific attrs requested */
 913                         if ( is_at_operational( desc->ad_type ) ) {
 914                                 /* if not explicitly requested */
 915                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
 916                                         /* if not all op attrs requested, skip */
 917                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
 918                                                 continue;
 919                                         /* if DSA-specific and replicating, skip */
 920                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
 921                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
 922                                                 continue;
 923                                 }
 924                         } else {
 925                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 926                                         continue;
 927                                 }
 928                         }
 929                 }
 930
 931                 if ( attrsonly ) {
 932                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 933                                 ACL_READ, &acl_state ) )
 934                         {
 935                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 936                                         "conn %lu access to attribute %s not allowed\n",
 937                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 938                                 continue;
 939                         }
 940
 941                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 942                                 Debug( LDAP_DEBUG_ANY,
 943                                         "send_search_entry: conn %lu  ber_printf failed\n",
 944                                         op->o_connid, 0, 0 );
 945
 946                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 947                                 send_ldap_error( op, rs, LDAP_OTHER,
 948                                         "encoding description error");
 949                                 rc = rs->sr_err;
 950                                 goto error_return;
 951                         }
 952                         finish = 1;
 953
 954                 } else {
 955                         int first = 1;
 956                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 957                                 if ( ! access_allowed( op, rs->sr_entry,
 958                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 959                                 {
 960                                         Debug( LDAP_DEBUG_ACL,
 961                                                 "send_search_entry: conn %lu "
 962                                                 "access to attribute %s, value #%d not allowed\n",
 963                                                 op->o_connid, desc->ad_cname.bv_val, i );
 964
 965                                         continue;
 966                                 }
 967
 968                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 969                                         continue;
 970                                 }
 971
 972                                 if ( first ) {
 973                                         first = 0;
 974                                         finish = 1;
 975                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 976                                                 Debug( LDAP_DEBUG_ANY,
 977                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 978                                                         op->o_connid, 0, 0 );
 979
 980                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 981                                                 send_ldap_error( op, rs, LDAP_OTHER,
 982                                                         "encoding description error");
 983                                                 rc = rs->sr_err;
 984                                                 goto error_return;
 985                                         }
 986                                 }
 987                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 988                                         Debug( LDAP_DEBUG_ANY,
 989                                                 "send_search_entry: conn %lu  "
 990                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 991
 992                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 993                                         send_ldap_error( op, rs, LDAP_OTHER,
 994                                                 "encoding values error" );
 995                                         rc = rs->sr_err;
 996                                         goto error_return;
 997                                 }
 998                         }
 999                 }
1000
1001                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1002                         Debug( LDAP_DEBUG_ANY,
1003                                 "send_search_entry: conn %lu ber_printf failed\n",
1004                                 op->o_connid, 0, 0 );
1005
1006                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1007                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1008                         rc = rs->sr_err;
1009                         goto error_return;
1010                 }
1011         }
1012
1013         /* NOTE: moved before overlays callback circling because
1014          * they may modify entry and other stuff in rs */
1015         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1016                 int     k = 0;
1017                 size_t  size;
1018
1019                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1020                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1021                 }
1022
1023                 size = i * sizeof(char *) + k;
1024                 if ( size > 0 ) {
1025                         char    *a_flags, **tmp;
1026
1027                         /*
1028                          * Reuse previous memory - we likely need less space
1029                          * for operational attributes
1030                          */
1031                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1032                                 op->o_tmpmemctx );
1033                         if ( tmp == NULL ) {
1034                                 Debug( LDAP_DEBUG_ANY,
1035                                         "send_search_entry: conn %lu "
1036                                         "not enough memory "
1037                                         "for matched values filtering\n",
1038                                         op->o_connid, 0, 0 );
1039                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1040                                 send_ldap_error( op, rs, LDAP_OTHER,
1041                                         "not enough memory for matched values filtering" );
1042                                 goto error_return;
1043                         }
1044                         e_flags = tmp;
1045                         a_flags = (char *)(e_flags + i);
1046                         memset( a_flags, 0, k );
1047                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1048                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1049                                 e_flags[i] = a_flags;
1050                                 a_flags += j;
1051                         }
1052                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1053
1054                         if ( rc == -1 ) {
1055                                 Debug( LDAP_DEBUG_ANY,
1056                                         "send_search_entry: conn %lu "
1057                                         "matched values filtering failed\n",
1058                                         op->o_connid ? op->o_connid : 0, 0, 0);
1059                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1060                                 send_ldap_error( op, rs, LDAP_OTHER,
1061                                         "matched values filtering error" );
1062                                 rc = rs->sr_err;
1063                                 goto error_return;
1064                         }
1065                 }
1066         }
1067
1068         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1069                 AttributeDescription *desc = a->a_desc;
1070
1071                 if ( rs->sr_attrs == NULL ) {
1072                         /* all user attrs request, skip operational attributes */
1073                         if( is_at_operational( desc->ad_type ) ) {
1074                                 continue;
1075                         }
1076
1077                 } else {
1078                         /* specific attrs requested */
1079                         if( is_at_operational( desc->ad_type ) ) {
1080                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1081                                         !ad_inlist( desc, rs->sr_attrs ) )
1082                                 {
1083                                         continue;
1084                                 }
1085                         } else {
1086                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1087                                         continue;
1088                                 }
1089                         }
1090                 }
1091
1092                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1093                         ACL_READ, &acl_state ) )
1094                 {
1095                         Debug( LDAP_DEBUG_ACL,
1096                                 "send_search_entry: conn %lu "
1097                                 "access to attribute %s not allowed\n",
1098                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1099
1100                         continue;
1101                 }
1102
1103                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1104                 if ( rc == -1 ) {
1105                         Debug( LDAP_DEBUG_ANY,
1106                                 "send_search_entry: conn %lu  "
1107                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1108
1109                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1110                         send_ldap_error( op, rs, LDAP_OTHER,
1111                                 "encoding description error" );
1112                         rc = rs->sr_err;
1113                         goto error_return;
1114                 }
1115
1116                 if ( ! attrsonly ) {
1117                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1118                                 if ( ! access_allowed( op, rs->sr_entry,
1119                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1120                                 {
1121                                         Debug( LDAP_DEBUG_ACL,
1122                                                 "send_search_entry: conn %lu "
1123                                                 "access to %s, value %d not allowed\n",
1124                                                 op->o_connid, desc->ad_cname.bv_val, i );
1125
1126                                         continue;
1127                                 }
1128
1129                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1130                                         continue;
1131                                 }
1132
1133                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1134                                         Debug( LDAP_DEBUG_ANY,
1135                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1136                                                 op->o_connid, 0, 0 );
1137
1138                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1139                                         send_ldap_error( op, rs, LDAP_OTHER,
1140                                                 "encoding values error" );
1141                                         rc = rs->sr_err;
1142                                         goto error_return;
1143                                 }
1144                         }
1145                 }
1146
1147                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1148                         Debug( LDAP_DEBUG_ANY,
1149                                 "send_search_entry: conn %lu  ber_printf failed\n",
1150                                 op->o_connid, 0, 0 );
1151
1152                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1153                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1154                         rc = rs->sr_err;
1155                         goto error_return;
1156                 }
1157         }
1158
1159         /* free e_flags */
1160         if ( e_flags ) {
1161                 slap_sl_free( e_flags, op->o_tmpmemctx );
1162                 e_flags = NULL;
1163         }
1164
1165         rc = ber_printf( ber, /*{{*/ "}N}" );
1166
1167         if( rc != -1 ) {
1168                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1169         }
1170
1171         if( rc != -1 ) {
1172 #ifdef LDAP_CONNECTIONLESS
1173                 if( op->o_conn && op->o_conn->c_is_udp ) {
1174                         if ( op->o_protocol != LDAP_VERSION2 ) {
1175                                 rc = ber_printf( ber, /*{*/ "N}" );
1176                         }
1177                 } else
1178 #endif
1179                 if ( op->o_res_ber == NULL ) {
1180                         rc = ber_printf( ber, /*{*/ "N}" );
1181                 }
1182         }
1183
1184         if ( rc == -1 ) {
1185                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1186
1187                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1188                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1189                 rc = rs->sr_err;
1190                 goto error_return;
1191         }
1192
1193         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1194                 be_entry_release_rw( op, rs->sr_entry, 0 );
1195                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1196                 rs->sr_entry = NULL;
1197         }
1198
1199         if ( op->o_res_ber == NULL ) {
1200                 bytes = send_ldap_ber( op->o_conn, ber );
1201                 ber_free_buf( ber );
1202
1203                 if ( bytes < 0 ) {
1204                         Debug( LDAP_DEBUG_ANY,
1205                                 "send_search_entry: conn %lu  ber write failed.\n",
1206                                 op->o_connid, 0, 0 );
1207
1208                         rc = LDAP_UNAVAILABLE;
1209                         goto error_return;
1210                 }
1211                 rs->sr_nentries++;
1212
1213                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1214                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1215                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1216                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1217                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1218         }
1219
1220         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1221             op->o_log_prefix, edn, 0, 0, 0 );
1222
1223         Debug( LDAP_DEBUG_TRACE,
1224                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1225
1226         rc = LDAP_SUCCESS;
1227
1228 error_return:;
1229         if ( op->o_callback ) {
1230                 (void)slap_cleanup_play( op, rs );
1231         }
1232
1233         if ( e_flags ) {
1234                 slap_sl_free( e_flags, op->o_tmpmemctx );
1235         }
1236
1237         if ( rs->sr_operational_attrs ) {
1238                 attrs_free( rs->sr_operational_attrs );
1239                 rs->sr_operational_attrs = NULL;
1240         }
1241         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1242
1243         /* FIXME: I think rs->sr_type should be explicitly set to
1244          * REP_SEARCH here. That's what it was when we entered this
1245          * function. send_ldap_error may have changed it, but we
1246          * should set it back so that the cleanup functions know
1247          * what they're doing.
1248          */
1249         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1250                 && rs->sr_entry
1251                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1252         {
1253                 entry_free( rs->sr_entry );
1254                 rs->sr_entry = NULL;
1255                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1256         }
1257
1258         return( rc );
1259 }
1260
1261 int
1262 slap_send_search_reference( Operation *op, SlapReply *rs )
1263 {
1264         BerElementBuffer berbuf;
1265         BerElement      *ber = (BerElement *) &berbuf;
1266         int rc = 0;
1267         int bytes;
1268
1269         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1270         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1271
1272         rs->sr_type = REP_SEARCHREF;
1273         if ( op->o_callback ) {
1274                 rc = slap_response_play( op, rs );
1275                 if ( rc != SLAP_CB_CONTINUE ) {
1276                         goto rel;
1277                 }
1278         }
1279
1280         Debug( LDAP_DEBUG_TRACE,
1281                 "=> send_search_reference: dn=\"%s\"\n",
1282                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1283
1284         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1285                 ad_entry, NULL, ACL_READ, NULL ) )
1286         {
1287                 Debug( LDAP_DEBUG_ACL,
1288                         "send_search_reference: access to entry not allowed\n",
1289                     0, 0, 0 );
1290                 rc = 1;
1291                 goto rel;
1292         }
1293
1294         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1295                 ad_ref, NULL, ACL_READ, NULL ) )
1296         {
1297                 Debug( LDAP_DEBUG_ACL,
1298                         "send_search_reference: access "
1299                         "to reference not allowed\n",
1300                     0, 0, 0 );
1301                 rc = 1;
1302                 goto rel;
1303         }
1304
1305         if( op->o_domain_scope ) {
1306                 Debug( LDAP_DEBUG_ANY,
1307                         "send_search_reference: domainScope control in (%s)\n",
1308                         rs->sr_entry->e_dn, 0, 0 );
1309                 rc = 0;
1310                 goto rel;
1311         }
1312
1313         if( rs->sr_ref == NULL ) {
1314                 Debug( LDAP_DEBUG_ANY,
1315                         "send_search_reference: null ref in (%s)\n",
1316                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1317                 rc = 1;
1318                 goto rel;
1319         }
1320
1321         if( op->o_protocol < LDAP_VERSION3 ) {
1322                 rc = 0;
1323                 /* save the references for the result */
1324                 if( rs->sr_ref[0].bv_val != NULL ) {
1325                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1326                                 rc = LDAP_OTHER;
1327                 }
1328                 goto rel;
1329         }
1330
1331 #ifdef LDAP_CONNECTIONLESS
1332         if( op->o_conn && op->o_conn->c_is_udp ) {
1333                 ber = op->o_res_ber;
1334         } else
1335 #endif
1336         {
1337                 ber_init_w_nullc( ber, LBER_USE_DER );
1338                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1339         }
1340
1341         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1342                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1343
1344         if( rc != -1 ) {
1345                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1346         }
1347
1348         if( rc != -1 ) {
1349                 rc = ber_printf( ber, /*"{"*/ "N}" );
1350         }
1351
1352         if ( rc == -1 ) {
1353                 Debug( LDAP_DEBUG_ANY,
1354                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1355
1356 #ifdef LDAP_CONNECTIONLESS
1357                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1358 #endif
1359                 ber_free_buf( ber );
1360                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1361                 goto rel;
1362         }
1363
1364         rc = 0;
1365         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1366                 be_entry_release_rw( op, rs->sr_entry, 0 );
1367                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1368                 rs->sr_entry = NULL;
1369         }
1370
1371 #ifdef LDAP_CONNECTIONLESS
1372         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1373 #endif
1374         bytes = send_ldap_ber( op->o_conn, ber );
1375         ber_free_buf( ber );
1376
1377         if ( bytes < 0 ) {
1378                 rc = LDAP_UNAVAILABLE;
1379         } else {
1380                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1381                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1382                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1383                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1384                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1385         }
1386 #ifdef LDAP_CONNECTIONLESS
1387         }
1388 #endif
1389         if ( rs->sr_ref != NULL ) {
1390                 int     r;
1391
1392                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1393                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1394                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1395                                 0, 0 );
1396                 }
1397
1398         } else {
1399                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1400                         op->o_log_prefix, 0, 0, 0, 0 );
1401         }
1402
1403         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1404
1405 rel:
1406         if ( op->o_callback ) {
1407                 (void)slap_cleanup_play( op, rs );
1408         }
1409
1410         return rc;
1411 }
1412
1413 int
1414 str2result(
1415     char        *s,
1416     int         *code,
1417     char        **matched,
1418     char        **info )
1419 {
1420         int     rc;
1421         char    *c;
1422
1423         *code = LDAP_SUCCESS;
1424         *matched = NULL;
1425         *info = NULL;
1426
1427         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1428                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1429                     s, 0, 0 );
1430
1431                 return( -1 );
1432         }
1433
1434         rc = 0;
1435         while ( (s = strchr( s, '\n' )) != NULL ) {
1436                 *s++ = '\0';
1437                 if ( *s == '\0' ) {
1438                         break;
1439                 }
1440                 if ( (c = strchr( s, ':' )) != NULL ) {
1441                         c++;
1442                 }
1443
1444                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1445                         char    *next = NULL;
1446                         long    retcode;
1447
1448                         if ( c == NULL ) {
1449                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1450                                     s, 0, 0 );
1451                                 rc = -1;
1452                                 continue;
1453                         }
1454
1455                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1456                         if ( c[ 0 ] == '\0' ) {
1457                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1458                                     s, 0, 0 );
1459                                 rc = -1;
1460                                 continue;
1461                         }
1462
1463                         retcode = strtol( c, &next, 10 );
1464                         if ( next == NULL || next == c ) {
1465                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1466                                     s, 0, 0 );
1467                                 rc = -1;
1468                                 continue;
1469                         }
1470
1471                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1472                         if ( next[ 0 ] != '\0' ) {
1473                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1474                                     s, 0, 0 );
1475                                 rc = -1;
1476                                 continue;
1477                         }
1478
1479                         /* FIXME: what if it's larger that max int? */
1480                         *code = (int)retcode;
1481
1482                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1483                         if ( c != NULL ) {
1484                                 *matched = c;
1485                         }
1486                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1487                         if ( c != NULL ) {
1488                                 *info = c;
1489                         }
1490                 } else {
1491                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1492                             s, 0, 0 );
1493
1494                         rc = -1;
1495                 }
1496         }
1497
1498         return( rc );
1499 }
1500
1501 int slap_read_controls(
1502         Operation *op,
1503         SlapReply *rs,
1504         Entry *e,
1505         const struct berval *oid,
1506         LDAPControl **ctrl )
1507 {
1508         int rc;
1509         struct berval bv;
1510         BerElementBuffer berbuf;
1511         BerElement *ber = (BerElement *) &berbuf;
1512         LDAPControl c;
1513         Operation myop;
1514
1515         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1516                 oid->bv_val, e->e_dn, 0 );
1517
1518         rs->sr_entry = e;
1519         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1520                 op->o_preread_attrs : op->o_postread_attrs;
1521
1522         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1523         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1524
1525         ber_init2( ber, &bv, LBER_USE_DER );
1526         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1527
1528         /* create new operation */
1529         myop = *op;
1530         /* FIXME: o_bd needed for ACL */
1531         myop.o_bd = op->o_bd;
1532         myop.o_res_ber = ber;
1533         myop.o_callback = NULL;
1534         myop.ors_slimit = 1;
1535
1536         rc = slap_send_search_entry( &myop, rs );
1537         if( rc ) return rc;
1538
1539         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1540
1541         if( rc == LBER_ERROR ) return LDAP_OTHER;
1542
1543         c.ldctl_oid = oid->bv_val;
1544         c.ldctl_iscritical = 0;
1545
1546         if ( *ctrl == NULL ) {
1547                 /* first try */
1548                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1549         } else {
1550                 /* retry: free previous try */
1551                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1552         }
1553
1554         **ctrl = c;
1555         return LDAP_SUCCESS;
1556 }
1557
1558 /* Map API errors to protocol errors... */
1559 int
1560 slap_map_api2result( SlapReply *rs )
1561 {
1562         switch(rs->sr_err) {
1563         case LDAP_SERVER_DOWN:
1564                 return LDAP_UNAVAILABLE;
1565         case LDAP_LOCAL_ERROR:
1566                 return LDAP_OTHER;
1567         case LDAP_ENCODING_ERROR:
1568         case LDAP_DECODING_ERROR:
1569                 return LDAP_PROTOCOL_ERROR;
1570         case LDAP_TIMEOUT:
1571                 return LDAP_UNAVAILABLE;
1572         case LDAP_AUTH_UNKNOWN:
1573                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1574         case LDAP_FILTER_ERROR:
1575                 rs->sr_text = "Filter error";
1576                 return LDAP_OTHER;
1577         case LDAP_USER_CANCELLED:
1578                 rs->sr_text = "User cancelled";
1579                 return LDAP_OTHER;
1580         case LDAP_PARAM_ERROR:
1581                 return LDAP_PROTOCOL_ERROR;
1582         case LDAP_NO_MEMORY:
1583                 return LDAP_OTHER;
1584         case LDAP_CONNECT_ERROR:
1585                 return LDAP_UNAVAILABLE;
1586         case LDAP_NOT_SUPPORTED:
1587                 return LDAP_UNWILLING_TO_PERFORM;
1588         case LDAP_CONTROL_NOT_FOUND:
1589                 return LDAP_PROTOCOL_ERROR;
1590         case LDAP_NO_RESULTS_RETURNED:
1591                 return LDAP_NO_SUCH_OBJECT;
1592         case LDAP_MORE_RESULTS_TO_RETURN:
1593                 rs->sr_text = "More results to return";
1594                 return LDAP_OTHER;
1595         case LDAP_CLIENT_LOOP:
1596         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1597                 return LDAP_LOOP_DETECT;
1598         default:
1599                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1600                 return rs->sr_err;
1601         }
1602 }
1603
1604
1605 slap_mask_t
1606 slap_attr_flags( AttributeName *an )
1607 {
1608         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1609
1610         if ( an == NULL ) {
1611                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1612
1613         } else {
1614                 flags |= an_find( an, &AllOper )
1615                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1616                 flags |= an_find( an, &AllUser )
1617                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1618         }
1619
1620         return flags;
1621 }
1622