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 1998-2007 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_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 526                 free( (char *)rs->sr_matched );
 527                 rs->sr_matched = NULL;
 528         }
 529
 530         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 531                 ber_bvarray_free( rs->sr_ref );
 532                 rs->sr_ref = NULL;
 533         }
 534
 535         return rc;
 536 }
 537
 538
 539 void
 540 send_ldap_disconnect( Operation *op, SlapReply *rs )
 541 {
 542 #define LDAP_UNSOLICITED_ERROR(e) \
 543         (  (e) == LDAP_PROTOCOL_ERROR \
 544         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 545         || (e) == LDAP_UNAVAILABLE )
 546
 547         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 548
 549         rs->sr_type = REP_EXTENDED;
 550
 551         Debug( LDAP_DEBUG_TRACE,
 552                 "send_ldap_disconnect %d:%s\n",
 553                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 554
 555         if ( op->o_protocol < LDAP_VERSION3 ) {
 556                 rs->sr_rspoid = NULL;
 557                 rs->sr_tag = slap_req2res( op->o_tag );
 558                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 559
 560         } else {
 561                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 562                 rs->sr_tag = LDAP_RES_EXTENDED;
 563                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 564         }
 565
 566         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 567                 Statslog( LDAP_DEBUG_STATS,
 568                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 569                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 570                         rs->sr_text ? rs->sr_text : "", 0 );
 571         }
 572 }
 573
 574 void
 575 slap_send_ldap_result( Operation *op, SlapReply *rs )
 576 {
 577         char *tmp = NULL;
 578         const char *otext = rs->sr_text;
 579         BerVarray oref = rs->sr_ref;
 580
 581         rs->sr_type = REP_RESULT;
 582
 583         /* Propagate Abandons so that cleanup callbacks can be processed */
 584         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 585                 goto abandon;
 586
 587         assert( !LDAP_API_ERROR( rs->sr_err ) );
 588
 589         Debug( LDAP_DEBUG_TRACE,
 590                 "send_ldap_result: %s p=%d\n",
 591                 op->o_log_prefix, op->o_protocol, 0 );
 592
 593         Debug( LDAP_DEBUG_ARGS,
 594                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 595                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 596                 rs->sr_text ? rs->sr_text : "" );
 597
 598
 599         if( rs->sr_ref ) {
 600                 Debug( LDAP_DEBUG_ARGS,
 601                         "send_ldap_result: referral=\"%s\"\n",
 602                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 603                         NULL, NULL );
 604         }
 605
 606         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 607
 608         if ( rs->sr_err == LDAP_REFERRAL ) {
 609                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 610
 611                 if( rs->sr_ref == NULL ) {
 612                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 613                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 614                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 615                 }
 616         }
 617
 618         if ( op->o_protocol < LDAP_VERSION3 ) {
 619                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 620                 rs->sr_text = tmp;
 621                 rs->sr_ref = NULL;
 622         }
 623
 624         rs->sr_tag = slap_req2res( op->o_tag );
 625         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 626
 627 abandon:
 628         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 629                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 630                         char nbuf[64];
 631                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 632                                 rs->sr_err, rs->sr_nentries );
 633
 634                         Statslog( LDAP_DEBUG_STATS,
 635                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 636                                 op->o_log_prefix, rs->sr_tag, nbuf,
 637                                 rs->sr_text ? rs->sr_text : "", 0 );
 638                 } else {
 639                         Statslog( LDAP_DEBUG_STATS,
 640                                 "%s RESULT tag=%lu err=%d text=%s\n",
 641                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 642                                 rs->sr_text ? rs->sr_text : "", 0 );
 643                 }
 644         }
 645
 646         if( tmp != NULL ) ch_free(tmp);
 647         rs->sr_text = otext;
 648         rs->sr_ref = oref;
 649 }
 650
 651 void
 652 send_ldap_sasl( Operation *op, SlapReply *rs )
 653 {
 654         rs->sr_type = REP_SASL;
 655         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 656                 rs->sr_err,
 657                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 658
 659         rs->sr_tag = slap_req2res( op->o_tag );
 660         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 661
 662         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 663                 Statslog( LDAP_DEBUG_STATS,
 664                         "%s RESULT tag=%lu err=%d text=%s\n",
 665                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 666                         rs->sr_text ? rs->sr_text : "", 0 );
 667         }
 668 }
 669
 670 void
 671 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 672 {
 673         rs->sr_type = REP_EXTENDED;
 674
 675         Debug( LDAP_DEBUG_TRACE,
 676                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 677                 rs->sr_err,
 678                 rs->sr_rspoid ? rs->sr_rspoid : "",
 679                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 680
 681         rs->sr_tag = slap_req2res( op->o_tag );
 682         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 683
 684         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 685                 Statslog( LDAP_DEBUG_STATS,
 686                         "%s RESULT oid=%s err=%d text=%s\n",
 687                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 688                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 689         }
 690 }
 691
 692 void
 693 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 694 {
 695         rs->sr_type = REP_INTERMEDIATE;
 696         Debug( LDAP_DEBUG_TRACE,
 697                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 698                 rs->sr_err,
 699                 rs->sr_rspoid ? rs->sr_rspoid : "",
 700                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 701         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 702         rs->sr_msgid = op->o_msgid;
 703         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 704                 Statslog( LDAP_DEBUG_STATS2,
 705                         "%s INTERM oid=%s\n",
 706                         op->o_log_prefix,
 707                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 708         }
 709 }
 710
 711 /*
 712  * returns:
 713  *
 714  * LDAP_SUCCESS                 entry sent
 715  * LDAP_OTHER                   entry not sent (other)
 716  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 717  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 718  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 719  */
 720
 721 int
 722 slap_send_search_entry( Operation *op, SlapReply *rs )
 723 {
 724         BerElementBuffer berbuf;
 725         BerElement      *ber = (BerElement *) &berbuf;
 726         Attribute       *a;
 727         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 728         char            *edn;
 729         int             userattrs;
 730         AccessControlState acl_state = ACL_STATE_INIT;
 731         int                      attrsonly;
 732         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 733
 734         /* a_flags: array of flags telling if the i-th element will be
 735          *          returned or filtered out
 736          * e_flags: array of a_flags
 737          */
 738         char **e_flags = NULL;
 739
 740         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 741                 return LDAP_SIZELIMIT_EXCEEDED;
 742         }
 743
 744         /* Every 64 entries, check for thread pool pause */
 745         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 746                 ldap_pvt_thread_pool_query( &connection_pool,
 747                         LDAP_PVT_THREAD_POOL_PARAM_PAUSING, &i ) == 0 && i )
 748         {
 749                 return LDAP_BUSY;
 750         }
 751
 752         rs->sr_type = REP_SEARCH;
 753
 754         /* eventually will loop through generated operational attribute types
 755          * currently implemented types include:
 756          *      entryDN, subschemaSubentry, and hasSubordinates */
 757         /* NOTE: moved before overlays callback circling because
 758          * they may modify entry and other stuff in rs */
 759         /* check for special all operational attributes ("+") type */
 760         /* FIXME: maybe we could set this flag at the operation level;
 761          * however, in principle the caller of send_search_entry() may
 762          * change the attribute list at each call */
 763         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 764
 765         rc = backend_operational( op, rs );
 766         if ( rc ) {
 767                 goto error_return;
 768         }
 769
 770         if ( op->o_callback ) {
 771                 rc = slap_response_play( op, rs );
 772                 if ( rc != SLAP_CB_CONTINUE ) {
 773                         goto error_return;
 774                 }
 775         }
 776
 777         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 778                 op->o_connid, rs->sr_entry->e_name.bv_val,
 779                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 780
 781         attrsonly = op->ors_attrsonly;
 782
 783         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 784                 Debug( LDAP_DEBUG_ACL,
 785                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 786                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 787
 788                 rc = LDAP_INSUFFICIENT_ACCESS;
 789                 goto error_return;
 790         }
 791
 792         edn = rs->sr_entry->e_nname.bv_val;
 793
 794         if ( op->o_res_ber ) {
 795                 /* read back control or LDAP_CONNECTIONLESS */
 796             ber = op->o_res_ber;
 797         } else {
 798                 struct berval   bv;
 799
 800                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 801                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 802
 803                 ber_init2( ber, &bv, LBER_USE_DER );
 804                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 805         }
 806
 807 #ifdef LDAP_CONNECTIONLESS
 808         if ( op->o_conn && op->o_conn->c_is_udp ) {
 809                 /* CONNECTIONLESS */
 810                 if ( op->o_protocol == LDAP_VERSION2 ) {
 811                 rc = ber_printf(ber, "t{O{" /*}}*/,
 812                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 813                 } else {
 814                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 815                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 816                 }
 817         } else
 818 #endif
 819         if ( op->o_res_ber ) {
 820                 /* read back control */
 821             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 822         } else {
 823             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 824                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 825         }
 826
 827         if ( rc == -1 ) {
 828                 Debug( LDAP_DEBUG_ANY,
 829                         "send_search_entry: conn %lu  ber_printf failed\n",
 830                         op->o_connid, 0, 0 );
 831
 832                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 833                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 834                 rc = rs->sr_err;
 835                 goto error_return;
 836         }
 837
 838         /* check for special all user attributes ("*") type */
 839         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 840
 841         /* create an array of arrays of flags. Each flag corresponds
 842          * to particular value of attribute and equals 1 if value matches
 843          * to ValuesReturnFilter or 0 if not
 844          */
 845         if ( op->o_vrFilter != NULL ) {
 846                 int     k = 0;
 847                 size_t  size;
 848
 849                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 850                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 851                 }
 852
 853                 size = i * sizeof(char *) + k;
 854                 if ( size > 0 ) {
 855                         char    *a_flags;
 856                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 857                         if( e_flags == NULL ) {
 858                         Debug( LDAP_DEBUG_ANY,
 859                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 860                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 861                                 ber_free( ber, 1 );
 862
 863                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 864                                 goto error_return;
 865                         }
 866                         a_flags = (char *)(e_flags + i);
 867                         memset( a_flags, 0, k );
 868                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 869                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 870                                 e_flags[i] = a_flags;
 871                                 a_flags += j;
 872                         }
 873
 874                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 875                         if ( rc == -1 ) {
 876                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 877                                         "conn %lu matched values filtering failed\n",
 878                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 879                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 880                                 send_ldap_error( op, rs, LDAP_OTHER,
 881                                         "matched values filtering error" );
 882                                 rc = rs->sr_err;
 883                                 goto error_return;
 884                         }
 885                 }
 886         }
 887
 888         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 889                 AttributeDescription *desc = a->a_desc;
 890                 int finish = 0;
 891
 892                 if ( rs->sr_attrs == NULL ) {
 893                         /* all user attrs request, skip operational attributes */
 894                         if( is_at_operational( desc->ad_type ) ) {
 895                                 continue;
 896                         }
 897
 898                 } else {
 899                         /* specific attrs requested */
 900                         if ( is_at_operational( desc->ad_type ) ) {
 901                                 /* if not explicitly requested */
 902                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
 903                                         /* if not all op attrs requested, skip */
 904                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
 905                                                 continue;
 906                                         /* if DSA-specific and replicating, skip */
 907                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
 908                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
 909                                                 continue;
 910                                 }
 911                         } else {
 912                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 913                                         continue;
 914                                 }
 915                         }
 916                 }
 917
 918                 if ( attrsonly ) {
 919                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 920                                 ACL_READ, &acl_state ) )
 921                         {
 922                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 923                                         "conn %lu access to attribute %s not allowed\n",
 924                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 925                                 continue;
 926                         }
 927
 928                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 929                                 Debug( LDAP_DEBUG_ANY,
 930                                         "send_search_entry: conn %lu  ber_printf failed\n",
 931                                         op->o_connid, 0, 0 );
 932
 933                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 934                                 send_ldap_error( op, rs, LDAP_OTHER,
 935                                         "encoding description error");
 936                                 rc = rs->sr_err;
 937                                 goto error_return;
 938                         }
 939                         finish = 1;
 940
 941                 } else {
 942                         int first = 1;
 943                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 944                                 if ( ! access_allowed( op, rs->sr_entry,
 945                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 946                                 {
 947                                         Debug( LDAP_DEBUG_ACL,
 948                                                 "send_search_entry: conn %lu "
 949                                                 "access to attribute %s, value #%d not allowed\n",
 950                                                 op->o_connid, desc->ad_cname.bv_val, i );
 951
 952                                         continue;
 953                                 }
 954
 955                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 956                                         continue;
 957                                 }
 958
 959                                 if ( first ) {
 960                                         first = 0;
 961                                         finish = 1;
 962                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 963                                                 Debug( LDAP_DEBUG_ANY,
 964                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 965                                                         op->o_connid, 0, 0 );
 966
 967                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 968                                                 send_ldap_error( op, rs, LDAP_OTHER,
 969                                                         "encoding description error");
 970                                                 rc = rs->sr_err;
 971                                                 goto error_return;
 972                                         }
 973                                 }
 974                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 975                                         Debug( LDAP_DEBUG_ANY,
 976                                                 "send_search_entry: conn %lu  "
 977                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 978
 979                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 980                                         send_ldap_error( op, rs, LDAP_OTHER,
 981                                                 "encoding values error" );
 982                                         rc = rs->sr_err;
 983                                         goto error_return;
 984                                 }
 985                         }
 986                 }
 987
 988                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 989                         Debug( LDAP_DEBUG_ANY,
 990                                 "send_search_entry: conn %lu ber_printf failed\n",
 991                                 op->o_connid, 0, 0 );
 992
 993                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 994                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 995                         rc = rs->sr_err;
 996                         goto error_return;
 997                 }
 998         }
 999
1000         /* NOTE: moved before overlays callback circling because
1001          * they may modify entry and other stuff in rs */
1002         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1003                 int     k = 0;
1004                 size_t  size;
1005
1006                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1007                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1008                 }
1009
1010                 size = i * sizeof(char *) + k;
1011                 if ( size > 0 ) {
1012                         char    *a_flags, **tmp;
1013
1014                         /*
1015                          * Reuse previous memory - we likely need less space
1016                          * for operational attributes
1017                          */
1018                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1019                                 op->o_tmpmemctx );
1020                         if ( tmp == NULL ) {
1021                                 Debug( LDAP_DEBUG_ANY,
1022                                         "send_search_entry: conn %lu "
1023                                         "not enough memory "
1024                                         "for matched values filtering\n",
1025                                         op->o_connid, 0, 0 );
1026                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1027                                 send_ldap_error( op, rs, LDAP_OTHER,
1028                                         "not enough memory for matched values filtering" );
1029                                 goto error_return;
1030                         }
1031                         e_flags = tmp;
1032                         a_flags = (char *)(e_flags + i);
1033                         memset( a_flags, 0, k );
1034                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1035                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1036                                 e_flags[i] = a_flags;
1037                                 a_flags += j;
1038                         }
1039                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1040
1041                         if ( rc == -1 ) {
1042                                 Debug( LDAP_DEBUG_ANY,
1043                                         "send_search_entry: conn %lu "
1044                                         "matched values filtering failed\n",
1045                                         op->o_connid ? op->o_connid : 0, 0, 0);
1046                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1047                                 send_ldap_error( op, rs, LDAP_OTHER,
1048                                         "matched values filtering error" );
1049                                 rc = rs->sr_err;
1050                                 goto error_return;
1051                         }
1052                 }
1053         }
1054
1055         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1056                 AttributeDescription *desc = a->a_desc;
1057
1058                 if ( rs->sr_attrs == NULL ) {
1059                         /* all user attrs request, skip operational attributes */
1060                         if( is_at_operational( desc->ad_type ) ) {
1061                                 continue;
1062                         }
1063
1064                 } else {
1065                         /* specific attrs requested */
1066                         if( is_at_operational( desc->ad_type ) ) {
1067                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1068                                         !ad_inlist( desc, rs->sr_attrs ) )
1069                                 {
1070                                         continue;
1071                                 }
1072                         } else {
1073                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1074                                         continue;
1075                                 }
1076                         }
1077                 }
1078
1079                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1080                         ACL_READ, &acl_state ) )
1081                 {
1082                         Debug( LDAP_DEBUG_ACL,
1083                                 "send_search_entry: conn %lu "
1084                                 "access to attribute %s not allowed\n",
1085                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1086
1087                         continue;
1088                 }
1089
1090                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1091                 if ( rc == -1 ) {
1092                         Debug( LDAP_DEBUG_ANY,
1093                                 "send_search_entry: conn %lu  "
1094                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1095
1096                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1097                         send_ldap_error( op, rs, LDAP_OTHER,
1098                                 "encoding description error" );
1099                         rc = rs->sr_err;
1100                         goto error_return;
1101                 }
1102
1103                 if ( ! attrsonly ) {
1104                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1105                                 if ( ! access_allowed( op, rs->sr_entry,
1106                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1107                                 {
1108                                         Debug( LDAP_DEBUG_ACL,
1109                                                 "send_search_entry: conn %lu "
1110                                                 "access to %s, value %d not allowed\n",
1111                                                 op->o_connid, desc->ad_cname.bv_val, i );
1112
1113                                         continue;
1114                                 }
1115
1116                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1117                                         continue;
1118                                 }
1119
1120                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1121                                         Debug( LDAP_DEBUG_ANY,
1122                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1123                                                 op->o_connid, 0, 0 );
1124
1125                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1126                                         send_ldap_error( op, rs, LDAP_OTHER,
1127                                                 "encoding values error" );
1128                                         rc = rs->sr_err;
1129                                         goto error_return;
1130                                 }
1131                         }
1132                 }
1133
1134                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1135                         Debug( LDAP_DEBUG_ANY,
1136                                 "send_search_entry: conn %lu  ber_printf failed\n",
1137                                 op->o_connid, 0, 0 );
1138
1139                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1140                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1141                         rc = rs->sr_err;
1142                         goto error_return;
1143                 }
1144         }
1145
1146         /* free e_flags */
1147         if ( e_flags ) {
1148                 slap_sl_free( e_flags, op->o_tmpmemctx );
1149                 e_flags = NULL;
1150         }
1151
1152         rc = ber_printf( ber, /*{{*/ "}N}" );
1153
1154         if( rc != -1 ) {
1155                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1156         }
1157
1158         if( rc != -1 ) {
1159 #ifdef LDAP_CONNECTIONLESS
1160                 if( op->o_conn && op->o_conn->c_is_udp ) {
1161                         if ( op->o_protocol != LDAP_VERSION2 ) {
1162                                 rc = ber_printf( ber, /*{*/ "N}" );
1163                         }
1164                 } else
1165 #endif
1166                 if ( op->o_res_ber == NULL ) {
1167                         rc = ber_printf( ber, /*{*/ "N}" );
1168                 }
1169         }
1170
1171         if ( rc == -1 ) {
1172                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1173
1174                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1175                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1176                 rc = rs->sr_err;
1177                 goto error_return;
1178         }
1179
1180         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1181                 be_entry_release_rw( op, rs->sr_entry, 0 );
1182                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1183                 rs->sr_entry = NULL;
1184         }
1185
1186         if ( op->o_res_ber == NULL ) {
1187                 bytes = send_ldap_ber( op->o_conn, ber );
1188                 ber_free_buf( ber );
1189
1190                 if ( bytes < 0 ) {
1191                         Debug( LDAP_DEBUG_ANY,
1192                                 "send_search_entry: conn %lu  ber write failed.\n",
1193                                 op->o_connid, 0, 0 );
1194
1195                         rc = LDAP_UNAVAILABLE;
1196                         goto error_return;
1197                 }
1198                 rs->sr_nentries++;
1199
1200                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1201                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1202                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1203                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1204                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1205         }
1206
1207         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1208             op->o_log_prefix, edn, 0, 0, 0 );
1209
1210         Debug( LDAP_DEBUG_TRACE,
1211                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1212
1213         rc = LDAP_SUCCESS;
1214
1215 error_return:;
1216         if ( op->o_callback ) {
1217                 (void)slap_cleanup_play( op, rs );
1218         }
1219
1220         if ( e_flags ) {
1221                 slap_sl_free( e_flags, op->o_tmpmemctx );
1222         }
1223
1224         if ( rs->sr_operational_attrs ) {
1225                 attrs_free( rs->sr_operational_attrs );
1226                 rs->sr_operational_attrs = NULL;
1227         }
1228         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1229
1230         /* FIXME: I think rs->sr_type should be explicitly set to
1231          * REP_SEARCH here. That's what it was when we entered this
1232          * function. send_ldap_error may have changed it, but we
1233          * should set it back so that the cleanup functions know
1234          * what they're doing.
1235          */
1236         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1237                 && rs->sr_entry
1238                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1239         {
1240                 entry_free( rs->sr_entry );
1241                 rs->sr_entry = NULL;
1242                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1243         }
1244
1245         return( rc );
1246 }
1247
1248 int
1249 slap_send_search_reference( Operation *op, SlapReply *rs )
1250 {
1251         BerElementBuffer berbuf;
1252         BerElement      *ber = (BerElement *) &berbuf;
1253         int rc = 0;
1254         int bytes;
1255
1256         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1257         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1258
1259         rs->sr_type = REP_SEARCHREF;
1260         if ( op->o_callback ) {
1261                 rc = slap_response_play( op, rs );
1262                 if ( rc != SLAP_CB_CONTINUE ) {
1263                         goto rel;
1264                 }
1265         }
1266
1267         Debug( LDAP_DEBUG_TRACE,
1268                 "=> send_search_reference: dn=\"%s\"\n",
1269                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1270
1271         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1272                 ad_entry, NULL, ACL_READ, NULL ) )
1273         {
1274                 Debug( LDAP_DEBUG_ACL,
1275                         "send_search_reference: access to entry not allowed\n",
1276                     0, 0, 0 );
1277                 rc = 1;
1278                 goto rel;
1279         }
1280
1281         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1282                 ad_ref, NULL, ACL_READ, NULL ) )
1283         {
1284                 Debug( LDAP_DEBUG_ACL,
1285                         "send_search_reference: access "
1286                         "to reference not allowed\n",
1287                     0, 0, 0 );
1288                 rc = 1;
1289                 goto rel;
1290         }
1291
1292         if( op->o_domain_scope ) {
1293                 Debug( LDAP_DEBUG_ANY,
1294                         "send_search_reference: domainScope control in (%s)\n",
1295                         rs->sr_entry->e_dn, 0, 0 );
1296                 rc = 0;
1297                 goto rel;
1298         }
1299
1300         if( rs->sr_ref == NULL ) {
1301                 Debug( LDAP_DEBUG_ANY,
1302                         "send_search_reference: null ref in (%s)\n",
1303                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1304                 rc = 1;
1305                 goto rel;
1306         }
1307
1308         if( op->o_protocol < LDAP_VERSION3 ) {
1309                 rc = 0;
1310                 /* save the references for the result */
1311                 if( rs->sr_ref[0].bv_val != NULL ) {
1312                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1313                                 rc = LDAP_OTHER;
1314                 }
1315                 goto rel;
1316         }
1317
1318 #ifdef LDAP_CONNECTIONLESS
1319         if( op->o_conn && op->o_conn->c_is_udp ) {
1320                 ber = op->o_res_ber;
1321         } else
1322 #endif
1323         {
1324                 ber_init_w_nullc( ber, LBER_USE_DER );
1325                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1326         }
1327
1328         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1329                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1330
1331         if( rc != -1 ) {
1332                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1333         }
1334
1335         if( rc != -1 ) {
1336                 rc = ber_printf( ber, /*"{"*/ "N}" );
1337         }
1338
1339         if ( rc == -1 ) {
1340                 Debug( LDAP_DEBUG_ANY,
1341                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1342
1343 #ifdef LDAP_CONNECTIONLESS
1344                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1345 #endif
1346                 ber_free_buf( ber );
1347                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1348                 goto rel;
1349         }
1350
1351         rc = 0;
1352         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1353                 be_entry_release_rw( op, rs->sr_entry, 0 );
1354                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1355                 rs->sr_entry = NULL;
1356         }
1357
1358 #ifdef LDAP_CONNECTIONLESS
1359         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1360 #endif
1361         bytes = send_ldap_ber( op->o_conn, ber );
1362         ber_free_buf( ber );
1363
1364         if ( bytes < 0 ) {
1365                 rc = LDAP_UNAVAILABLE;
1366         } else {
1367                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1368                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1369                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1370                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1371                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1372         }
1373 #ifdef LDAP_CONNECTIONLESS
1374         }
1375 #endif
1376         if ( rs->sr_ref != NULL ) {
1377                 int     r;
1378
1379                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1380                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1381                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1382                                 0, 0 );
1383                 }
1384
1385         } else {
1386                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1387                         op->o_log_prefix, 0, 0, 0, 0 );
1388         }
1389
1390         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1391
1392 rel:
1393         if ( op->o_callback ) {
1394                 (void)slap_cleanup_play( op, rs );
1395         }
1396
1397         return rc;
1398 }
1399
1400 int
1401 str2result(
1402     char        *s,
1403     int         *code,
1404     char        **matched,
1405     char        **info )
1406 {
1407         int     rc;
1408         char    *c;
1409
1410         *code = LDAP_SUCCESS;
1411         *matched = NULL;
1412         *info = NULL;
1413
1414         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1415                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1416                     s, 0, 0 );
1417
1418                 return( -1 );
1419         }
1420
1421         rc = 0;
1422         while ( (s = strchr( s, '\n' )) != NULL ) {
1423                 *s++ = '\0';
1424                 if ( *s == '\0' ) {
1425                         break;
1426                 }
1427                 if ( (c = strchr( s, ':' )) != NULL ) {
1428                         c++;
1429                 }
1430
1431                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1432                         char    *next = NULL;
1433                         long    retcode;
1434
1435                         if ( c == NULL ) {
1436                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1437                                     s, 0, 0 );
1438                                 rc = -1;
1439                                 continue;
1440                         }
1441
1442                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1443                         if ( c[ 0 ] == '\0' ) {
1444                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1445                                     s, 0, 0 );
1446                                 rc = -1;
1447                                 continue;
1448                         }
1449
1450                         retcode = strtol( c, &next, 10 );
1451                         if ( next == NULL || next == c ) {
1452                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1453                                     s, 0, 0 );
1454                                 rc = -1;
1455                                 continue;
1456                         }
1457
1458                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1459                         if ( next[ 0 ] != '\0' ) {
1460                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1461                                     s, 0, 0 );
1462                                 rc = -1;
1463                                 continue;
1464                         }
1465
1466                         /* FIXME: what if it's larger that max int? */
1467                         *code = (int)retcode;
1468
1469                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1470                         if ( c != NULL ) {
1471                                 *matched = c;
1472                         }
1473                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1474                         if ( c != NULL ) {
1475                                 *info = c;
1476                         }
1477                 } else {
1478                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1479                             s, 0, 0 );
1480
1481                         rc = -1;
1482                 }
1483         }
1484
1485         return( rc );
1486 }
1487
1488 int slap_read_controls(
1489         Operation *op,
1490         SlapReply *rs,
1491         Entry *e,
1492         const struct berval *oid,
1493         LDAPControl **ctrl )
1494 {
1495         int rc;
1496         struct berval bv;
1497         BerElementBuffer berbuf;
1498         BerElement *ber = (BerElement *) &berbuf;
1499         LDAPControl c;
1500         Operation myop;
1501
1502         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1503                 oid->bv_val, e->e_dn, 0 );
1504
1505         rs->sr_entry = e;
1506         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1507                 op->o_preread_attrs : op->o_postread_attrs;
1508
1509         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1510         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1511
1512         ber_init2( ber, &bv, LBER_USE_DER );
1513         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1514
1515         /* create new operation */
1516         myop = *op;
1517         /* FIXME: o_bd needed for ACL */
1518         myop.o_bd = op->o_bd;
1519         myop.o_res_ber = ber;
1520         myop.o_callback = NULL;
1521         myop.ors_slimit = 1;
1522
1523         rc = slap_send_search_entry( &myop, rs );
1524         if( rc ) return rc;
1525
1526         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1527
1528         if( rc == LBER_ERROR ) return LDAP_OTHER;
1529
1530         c.ldctl_oid = oid->bv_val;
1531         c.ldctl_iscritical = 0;
1532
1533         if ( *ctrl == NULL ) {
1534                 /* first try */
1535                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1536         } else {
1537                 /* retry: free previous try */
1538                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1539         }
1540
1541         **ctrl = c;
1542         return LDAP_SUCCESS;
1543 }
1544
1545 /* Map API errors to protocol errors... */
1546 int
1547 slap_map_api2result( SlapReply *rs )
1548 {
1549         switch(rs->sr_err) {
1550         case LDAP_SERVER_DOWN:
1551                 return LDAP_UNAVAILABLE;
1552         case LDAP_LOCAL_ERROR:
1553                 return LDAP_OTHER;
1554         case LDAP_ENCODING_ERROR:
1555         case LDAP_DECODING_ERROR:
1556                 return LDAP_PROTOCOL_ERROR;
1557         case LDAP_TIMEOUT:
1558                 return LDAP_UNAVAILABLE;
1559         case LDAP_AUTH_UNKNOWN:
1560                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1561         case LDAP_FILTER_ERROR:
1562                 rs->sr_text = "Filter error";
1563                 return LDAP_OTHER;
1564         case LDAP_USER_CANCELLED:
1565                 rs->sr_text = "User cancelled";
1566                 return LDAP_OTHER;
1567         case LDAP_PARAM_ERROR:
1568                 return LDAP_PROTOCOL_ERROR;
1569         case LDAP_NO_MEMORY:
1570                 return LDAP_OTHER;
1571         case LDAP_CONNECT_ERROR:
1572                 return LDAP_UNAVAILABLE;
1573         case LDAP_NOT_SUPPORTED:
1574                 return LDAP_UNWILLING_TO_PERFORM;
1575         case LDAP_CONTROL_NOT_FOUND:
1576                 return LDAP_PROTOCOL_ERROR;
1577         case LDAP_NO_RESULTS_RETURNED:
1578                 return LDAP_NO_SUCH_OBJECT;
1579         case LDAP_MORE_RESULTS_TO_RETURN:
1580                 rs->sr_text = "More results to return";
1581                 return LDAP_OTHER;
1582         case LDAP_CLIENT_LOOP:
1583         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1584                 return LDAP_LOOP_DETECT;
1585         default:
1586                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1587                 return rs->sr_err;
1588         }
1589 }
1590
1591
1592 slap_mask_t
1593 slap_attr_flags( AttributeName *an )
1594 {
1595         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1596
1597         if ( an == NULL ) {
1598                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1599
1600         } else {
1601                 flags |= an_find( an, &AllOper )
1602                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1603                 flags |= an_find( an, &AllUser )
1604                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1605         }
1606
1607         return flags;
1608 }
1609