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         long ret = 0;
 141         int closing = 0;
 142
 143         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 144
 145         /* write only one pdu at a time - wait til it's our turn */
 146         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 147         if ( connection_state_closing( conn )) {
 148                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 149                 return 0;
 150         }
 151         while ( conn->c_writers > 0 ) {
 152                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 153         }
 154         /* connection was closed under us */
 155         if ( conn->c_writers < 0 ) {
 156                 closing = 1;
 157                 /* we're the last waiter, let the closer continue */
 158                 if ( conn->c_writers == -1 )
 159                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 160         }
 161
 162         conn->c_writers++;
 163         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 164
 165         if ( closing )
 166                 return 0;
 167
 168         /* write the pdu */
 169         while( 1 ) {
 170                 int err;
 171
 172                 /* lock the connection */
 173                 ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 174
 175                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 176                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 177                         ret = bytes;
 178                         break;
 179                 }
 180
 181                 err = sock_errno();
 182
 183                 /*
 184                  * we got an error.  if it's ewouldblock, we need to
 185                  * wait on the socket being writable.  otherwise, figure
 186                  * it's a hard error and return.
 187                  */
 188
 189                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 190                     err, sock_errstr(err), 0 );
 191
 192                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 193                         connection_closing( conn, "connection lost on write" );
 194
 195                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 196
 197                         ret = -1;
 198                         break;
 199                 }
 200
 201                 /* wait for socket to be write-ready */
 202                 ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
 203                 conn->c_writewaiter = 1;
 204                 slapd_set_write( conn->c_sd, 1 );
 205
 206                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 207                 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
 208                 conn->c_writewaiter = 0;
 209                 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
 210                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 211                 closing = ( conn->c_writers < 0 );
 212                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 213                 if ( closing ) {
 214                         ret = 0;
 215                         break;
 216                 }
 217         }
 218
 219         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 220         if ( conn->c_writers < 0 ) {
 221                 conn->c_writers++;
 222                 if ( !conn->c_writers )
 223                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 224         } else {
 225                 conn->c_writers--;
 226                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 227         }
 228         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 229
 230         return ret;
 231 }
 232
 233 static int
 234 send_ldap_control( BerElement *ber, LDAPControl *c )
 235 {
 236         int rc;
 237
 238         assert( c != NULL );
 239
 240         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 241
 242         if( c->ldctl_iscritical ) {
 243                 rc = ber_printf( ber, "b",
 244                         (ber_int_t) c->ldctl_iscritical ) ;
 245                 if( rc == -1 ) return rc;
 246         }
 247
 248         if( c->ldctl_value.bv_val != NULL ) {
 249                 rc = ber_printf( ber, "O", &c->ldctl_value );
 250                 if( rc == -1 ) return rc;
 251         }
 252
 253         rc = ber_printf( ber, /*{*/"N}" );
 254         if( rc == -1 ) return rc;
 255
 256         return 0;
 257 }
 258
 259 static int
 260 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 261 {
 262         int rc;
 263
 264         if( c == NULL )
 265                 return 0;
 266
 267         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 268         if( rc == -1 ) return rc;
 269
 270         for( ; *c != NULL; c++) {
 271                 rc = send_ldap_control( ber, *c );
 272                 if( rc == -1 ) return rc;
 273         }
 274
 275 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 276         /* this is a hack to avoid having to modify op->s_ctrls */
 277         if( o->o_sortedresults ) {
 278                 BerElementBuffer berbuf;
 279                 BerElement *sber = (BerElement *) &berbuf;
 280                 LDAPControl sorted;
 281                 BER_BVZERO( &sorted.ldctl_value );
 282                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 283                 sorted.ldctl_iscritical = 0;
 284
 285                 ber_init2( sber, NULL, LBER_USE_DER );
 286
 287                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 288
 289                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 290                         return -1;
 291                 }
 292
 293                 (void) ber_free_buf( ber );
 294
 295                 rc = send_ldap_control( ber, &sorted );
 296                 if( rc == -1 ) return rc;
 297         }
 298 #endif
 299
 300         rc = ber_printf( ber, /*{*/"N}" );
 301
 302         return rc;
 303 }
 304
 305 /*
 306  * slap_response_play()
 307  *
 308  * plays the callback list; rationale: a callback can
 309  *   - remove itself from the list, by setting op->o_callback = NULL;
 310  *     malloc()'ed callbacks should free themselves from inside the
 311  *     sc_response() function.
 312  *   - replace itself with another (list of) callback(s), by setting
 313  *     op->o_callback = a new (list of) callback(s); in this case, it
 314  *     is the callback's responsibility to to append existing subsequent
 315  *     callbacks to the end of the list that is passed to the sc_response()
 316  *     function.
 317  *   - modify the list of subsequent callbacks by modifying the value
 318  *     of the sc_next field from inside the sc_response() function; this
 319  *     case does not require any handling from inside slap_response_play()
 320  *
 321  * To stop execution of the playlist, the sc_response() function must return
 322  * a value different from SLAP_SC_CONTINUE.
 323  *
 324  * The same applies to slap_cleanup_play(); only, there is no means to stop
 325  * execution of the playlist, since all cleanup functions must be called.
 326  */
 327 static int
 328 slap_response_play(
 329         Operation *op,
 330         SlapReply *rs )
 331 {
 332         int rc;
 333
 334         slap_callback   *sc = op->o_callback, **scp;
 335
 336         rc = SLAP_CB_CONTINUE;
 337         for ( scp = &sc; *scp; ) {
 338                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 339
 340                 op->o_callback = *scp;
 341                 if ( op->o_callback->sc_response ) {
 342                         rc = op->o_callback->sc_response( op, rs );
 343                         if ( op->o_callback == NULL ) {
 344                                 /* the callback has been removed;
 345                                  * repair the list */
 346                                 *scp = sc_next;
 347                                 sc_nextp = scp;
 348
 349                         } else if ( op->o_callback != *scp ) {
 350                                 /* a new callback has been inserted
 351                                  * in place of the existing one; repair the list */
 352                                 *scp = op->o_callback;
 353                                 sc_nextp = scp;
 354                         }
 355                         if ( rc != SLAP_CB_CONTINUE ) break;
 356                 }
 357                 scp = sc_nextp;
 358         }
 359
 360         op->o_callback = sc;
 361         return rc;
 362 }
 363
 364 static int
 365 slap_cleanup_play(
 366         Operation *op,
 367         SlapReply *rs )
 368 {
 369         slap_callback   *sc = op->o_callback, **scp;
 370
 371         for ( scp = &sc; *scp; ) {
 372                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 373
 374                 op->o_callback = *scp;
 375                 if ( op->o_callback->sc_cleanup ) {
 376                         (void)op->o_callback->sc_cleanup( op, rs );
 377                         if ( op->o_callback == NULL ) {
 378                                 /* the callback has been removed;
 379                                  * repair the list */
 380                                 *scp = sc_next;
 381                                 sc_nextp = scp;
 382
 383                         } else if ( op->o_callback != *scp ) {
 384                                 /* a new callback has been inserted
 385                                  * after the existing one; repair the list */
 386                                 /* a new callback has been inserted
 387                                  * in place of the existing one; repair the list */
 388                                 *scp = op->o_callback;
 389                                 sc_nextp = scp;
 390                         }
 391                         /* don't care about the result; do all cleanup */
 392                 }
 393                 scp = sc_nextp;
 394         }
 395
 396         op->o_callback = sc;
 397         return LDAP_SUCCESS;
 398 }
 399
 400 static int
 401 send_ldap_response(
 402         Operation *op,
 403         SlapReply *rs )
 404 {
 405         BerElementBuffer berbuf;
 406         BerElement      *ber = (BerElement *) &berbuf;
 407         int             rc = LDAP_SUCCESS;
 408         long    bytes;
 409
 410         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 411                 rc = SLAPD_ABANDON;
 412                 goto clean2;
 413         }
 414
 415         if ( op->o_callback ) {
 416                 rc = slap_response_play( op, rs );
 417                 if ( rc != SLAP_CB_CONTINUE ) {
 418                         goto clean2;
 419                 }
 420         }
 421
 422 #ifdef LDAP_CONNECTIONLESS
 423         if (op->o_conn && op->o_conn->c_is_udp)
 424                 ber = op->o_res_ber;
 425         else
 426 #endif
 427         {
 428                 ber_init_w_nullc( ber, LBER_USE_DER );
 429                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 430         }
 431
 432         Debug( LDAP_DEBUG_TRACE,
 433                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 434                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 435
 436         if( rs->sr_ref ) {
 437                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 438                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 439                         NULL, NULL );
 440         }
 441
 442 #ifdef LDAP_CONNECTIONLESS
 443         if (op->o_conn && op->o_conn->c_is_udp &&
 444                 op->o_protocol == LDAP_VERSION2 )
 445         {
 446                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 447                         rs->sr_tag, rs->sr_err,
 448                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 449                 rs->sr_text == NULL ? "" : rs->sr_text );
 450         } else
 451 #endif
 452         if ( rs->sr_type == REP_INTERMEDIATE ) {
 453             rc = ber_printf( ber, "{it{" /*"}}"*/,
 454                         rs->sr_msgid, rs->sr_tag );
 455
 456         } else {
 457             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 458                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 459                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 460                 rs->sr_text == NULL ? "" : rs->sr_text );
 461         }
 462
 463         if( rc != -1 ) {
 464                 if ( rs->sr_ref != NULL ) {
 465                         assert( rs->sr_err == LDAP_REFERRAL );
 466                         rc = ber_printf( ber, "t{W}",
 467                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 468                 } else {
 469                         assert( rs->sr_err != LDAP_REFERRAL );
 470                 }
 471         }
 472
 473         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 474                 rc = ber_printf( ber, "tO",
 475                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 476         }
 477
 478         if( rc != -1 &&
 479                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 480         {
 481                 if ( rs->sr_rspoid != NULL ) {
 482                         rc = ber_printf( ber, "ts",
 483                                 rs->sr_type == REP_EXTENDED
 484                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 485                                 rs->sr_rspoid );
 486                 }
 487                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 488                         rc = ber_printf( ber, "tO",
 489                                 rs->sr_type == REP_EXTENDED
 490                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 491                                 rs->sr_rspdata );
 492                 }
 493         }
 494
 495         if( rc != -1 ) {
 496                 rc = ber_printf( ber, /*"{"*/ "N}" );
 497         }
 498
 499         if( rc != -1 ) {
 500                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 501         }
 502
 503         if( rc != -1 ) {
 504                 rc = ber_printf( ber, /*"{"*/ "N}" );
 505         }
 506
 507 #ifdef LDAP_CONNECTIONLESS
 508         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 509                 && rc != -1 )
 510         {
 511                 rc = ber_printf( ber, /*"{"*/ "N}" );
 512         }
 513 #endif
 514
 515         if ( rc == -1 ) {
 516                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 517
 518 #ifdef LDAP_CONNECTIONLESS
 519                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 520 #endif
 521                 {
 522                         ber_free_buf( ber );
 523                 }
 524                 goto cleanup;
 525         }
 526
 527         /* send BER */
 528         bytes = send_ldap_ber( op->o_conn, ber );
 529 #ifdef LDAP_CONNECTIONLESS
 530         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 531 #endif
 532         {
 533                 ber_free_buf( ber );
 534         }
 535
 536         if ( bytes < 0 ) {
 537                 Debug( LDAP_DEBUG_ANY,
 538                         "send_ldap_response: ber write failed\n",
 539                         0, 0, 0 );
 540
 541                 goto cleanup;
 542         }
 543
 544         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 545         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 546         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 547         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 548
 549 cleanup:;
 550         /* Tell caller that we did this for real, as opposed to being
 551          * overridden by a callback
 552          */
 553         rc = SLAP_CB_CONTINUE;
 554
 555 clean2:;
 556         if ( op->o_callback ) {
 557                 (void)slap_cleanup_play( op, rs );
 558         }
 559
 560         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 561                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 562                 if ( rs->sr_matched ) {
 563                         free( (char *)rs->sr_matched );
 564                         rs->sr_matched = NULL;
 565                 }
 566         }
 567
 568         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 569                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 570                 if ( rs->sr_ref ) {
 571                         ber_bvarray_free( rs->sr_ref );
 572                         rs->sr_ref = NULL;
 573                 }
 574         }
 575
 576         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 577                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 578                 if ( rs->sr_ctrls ) {
 579                         slap_free_ctrls( op, rs->sr_ctrls );
 580                         rs->sr_ctrls = NULL;
 581                 }
 582         }
 583
 584         return rc;
 585 }
 586
 587
 588 void
 589 send_ldap_disconnect( Operation *op, SlapReply *rs )
 590 {
 591 #define LDAP_UNSOLICITED_ERROR(e) \
 592         (  (e) == LDAP_PROTOCOL_ERROR \
 593         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 594         || (e) == LDAP_UNAVAILABLE )
 595
 596         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 597
 598         rs->sr_type = REP_EXTENDED;
 599
 600         Debug( LDAP_DEBUG_TRACE,
 601                 "send_ldap_disconnect %d:%s\n",
 602                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 603
 604         if ( op->o_protocol < LDAP_VERSION3 ) {
 605                 rs->sr_rspoid = NULL;
 606                 rs->sr_tag = slap_req2res( op->o_tag );
 607                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 608
 609         } else {
 610                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 611                 rs->sr_tag = LDAP_RES_EXTENDED;
 612                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 613         }
 614
 615         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 616                 Statslog( LDAP_DEBUG_STATS,
 617                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 618                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 619                         rs->sr_text ? rs->sr_text : "", 0 );
 620         }
 621 }
 622
 623 void
 624 slap_send_ldap_result( Operation *op, SlapReply *rs )
 625 {
 626         char *tmp = NULL;
 627         const char *otext = rs->sr_text;
 628         BerVarray oref = rs->sr_ref;
 629
 630         rs->sr_type = REP_RESULT;
 631
 632         /* Propagate Abandons so that cleanup callbacks can be processed */
 633         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 634                 goto abandon;
 635
 636         assert( !LDAP_API_ERROR( rs->sr_err ) );
 637
 638         Debug( LDAP_DEBUG_TRACE,
 639                 "send_ldap_result: %s p=%d\n",
 640                 op->o_log_prefix, op->o_protocol, 0 );
 641
 642         Debug( LDAP_DEBUG_ARGS,
 643                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 644                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 645                 rs->sr_text ? rs->sr_text : "" );
 646
 647
 648         if( rs->sr_ref ) {
 649                 Debug( LDAP_DEBUG_ARGS,
 650                         "send_ldap_result: referral=\"%s\"\n",
 651                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 652                         NULL, NULL );
 653         }
 654
 655         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 656
 657         if ( rs->sr_err == LDAP_REFERRAL ) {
 658                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 659
 660                 if( rs->sr_ref == NULL ) {
 661                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 662                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 663                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 664                 }
 665         }
 666
 667         if ( op->o_protocol < LDAP_VERSION3 ) {
 668                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 669                 rs->sr_text = tmp;
 670                 rs->sr_ref = NULL;
 671         }
 672
 673 abandon:
 674         rs->sr_tag = slap_req2res( op->o_tag );
 675         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 676
 677         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 678                 if ( rs->sr_ref == NULL ) {
 679                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 680                         ber_bvarray_free( oref );
 681                 }
 682                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 683         }
 684
 685         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 686                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 687                         Statslog( LDAP_DEBUG_STATS,
 688                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 689                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 690                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 691                 } else {
 692                         Statslog( LDAP_DEBUG_STATS,
 693                                 "%s RESULT tag=%lu err=%d text=%s\n",
 694                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 695                                 rs->sr_text ? rs->sr_text : "", 0 );
 696                 }
 697         }
 698
 699         if( tmp != NULL ) ch_free(tmp);
 700         rs->sr_text = otext;
 701         rs->sr_ref = oref;
 702 }
 703
 704 void
 705 send_ldap_sasl( Operation *op, SlapReply *rs )
 706 {
 707         rs->sr_type = REP_SASL;
 708         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 709                 rs->sr_err,
 710                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 711
 712         rs->sr_tag = slap_req2res( op->o_tag );
 713         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 714
 715         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 716                 Statslog( LDAP_DEBUG_STATS,
 717                         "%s RESULT tag=%lu err=%d text=%s\n",
 718                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 719                         rs->sr_text ? rs->sr_text : "", 0 );
 720         }
 721 }
 722
 723 void
 724 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 725 {
 726         rs->sr_type = REP_EXTENDED;
 727
 728         Debug( LDAP_DEBUG_TRACE,
 729                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 730                 rs->sr_err,
 731                 rs->sr_rspoid ? rs->sr_rspoid : "",
 732                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 733
 734         rs->sr_tag = slap_req2res( op->o_tag );
 735         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 736
 737         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 738                 Statslog( LDAP_DEBUG_STATS,
 739                         "%s RESULT oid=%s err=%d text=%s\n",
 740                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 741                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 742         }
 743 }
 744
 745 void
 746 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 747 {
 748         rs->sr_type = REP_INTERMEDIATE;
 749         Debug( LDAP_DEBUG_TRACE,
 750                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 751                 rs->sr_err,
 752                 rs->sr_rspoid ? rs->sr_rspoid : "",
 753                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 754         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 755         rs->sr_msgid = op->o_msgid;
 756         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 757                 Statslog( LDAP_DEBUG_STATS2,
 758                         "%s INTERM oid=%s\n",
 759                         op->o_log_prefix,
 760                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 761         }
 762 }
 763
 764 /*
 765  * returns:
 766  *
 767  * LDAP_SUCCESS                 entry sent
 768  * LDAP_OTHER                   entry not sent (other)
 769  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 770  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 771  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 772  */
 773
 774 int
 775 slap_send_search_entry( Operation *op, SlapReply *rs )
 776 {
 777         BerElementBuffer berbuf;
 778         BerElement      *ber = (BerElement *) &berbuf;
 779         Attribute       *a;
 780         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 781         int             userattrs;
 782         AccessControlState acl_state = ACL_STATE_INIT;
 783         int                      attrsonly;
 784         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 785
 786         /* a_flags: array of flags telling if the i-th element will be
 787          *          returned or filtered out
 788          * e_flags: array of a_flags
 789          */
 790         char **e_flags = NULL;
 791
 792         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 793                 return LDAP_SIZELIMIT_EXCEEDED;
 794         }
 795
 796         /* Every 64 entries, check for thread pool pause */
 797         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 798                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 799         {
 800                 return LDAP_BUSY;
 801         }
 802
 803         rs->sr_type = REP_SEARCH;
 804
 805         /* eventually will loop through generated operational attribute types
 806          * currently implemented types include:
 807          *      entryDN, subschemaSubentry, and hasSubordinates */
 808         /* NOTE: moved before overlays callback circling because
 809          * they may modify entry and other stuff in rs */
 810         /* check for special all operational attributes ("+") type */
 811         /* FIXME: maybe we could set this flag at the operation level;
 812          * however, in principle the caller of send_search_entry() may
 813          * change the attribute list at each call */
 814         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 815
 816         rc = backend_operational( op, rs );
 817         if ( rc ) {
 818                 goto error_return;
 819         }
 820
 821         if ( op->o_callback ) {
 822                 rc = slap_response_play( op, rs );
 823                 if ( rc != SLAP_CB_CONTINUE ) {
 824                         goto error_return;
 825                 }
 826         }
 827
 828         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 829                 op->o_connid, rs->sr_entry->e_name.bv_val,
 830                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 831
 832         attrsonly = op->ors_attrsonly;
 833
 834         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 835                 Debug( LDAP_DEBUG_ACL,
 836                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 837                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 838
 839                 rc = LDAP_INSUFFICIENT_ACCESS;
 840                 goto error_return;
 841         }
 842
 843         if ( op->o_res_ber ) {
 844                 /* read back control or LDAP_CONNECTIONLESS */
 845             ber = op->o_res_ber;
 846         } else {
 847                 struct berval   bv;
 848
 849                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 850                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 851
 852                 ber_init2( ber, &bv, LBER_USE_DER );
 853                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 854         }
 855
 856 #ifdef LDAP_CONNECTIONLESS
 857         if ( op->o_conn && op->o_conn->c_is_udp ) {
 858                 /* CONNECTIONLESS */
 859                 if ( op->o_protocol == LDAP_VERSION2 ) {
 860                 rc = ber_printf(ber, "t{O{" /*}}*/,
 861                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 862                 } else {
 863                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 864                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 865                 }
 866         } else
 867 #endif
 868         if ( op->o_res_ber ) {
 869                 /* read back control */
 870             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 871         } else {
 872             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 873                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 874         }
 875
 876         if ( rc == -1 ) {
 877                 Debug( LDAP_DEBUG_ANY,
 878                         "send_search_entry: conn %lu  ber_printf failed\n",
 879                         op->o_connid, 0, 0 );
 880
 881                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 882                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 883                 rc = rs->sr_err;
 884                 goto error_return;
 885         }
 886
 887         /* check for special all user attributes ("*") type */
 888         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 889
 890         /* create an array of arrays of flags. Each flag corresponds
 891          * to particular value of attribute and equals 1 if value matches
 892          * to ValuesReturnFilter or 0 if not
 893          */
 894         if ( op->o_vrFilter != NULL ) {
 895                 int     k = 0;
 896                 size_t  size;
 897
 898                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 899                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 900                 }
 901
 902                 size = i * sizeof(char *) + k;
 903                 if ( size > 0 ) {
 904                         char    *a_flags;
 905                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 906                         if( e_flags == NULL ) {
 907                         Debug( LDAP_DEBUG_ANY,
 908                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 909                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 910                                 ber_free( ber, 1 );
 911
 912                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 913                                 goto error_return;
 914                         }
 915                         a_flags = (char *)(e_flags + i);
 916                         memset( a_flags, 0, k );
 917                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 918                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 919                                 e_flags[i] = a_flags;
 920                                 a_flags += j;
 921                         }
 922
 923                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 924                         if ( rc == -1 ) {
 925                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 926                                         "conn %lu matched values filtering failed\n",
 927                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 928                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 929                                 send_ldap_error( op, rs, LDAP_OTHER,
 930                                         "matched values filtering error" );
 931                                 rc = rs->sr_err;
 932                                 goto error_return;
 933                         }
 934                 }
 935         }
 936
 937         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 938                 AttributeDescription *desc = a->a_desc;
 939                 int finish = 0;
 940
 941                 if ( rs->sr_attrs == NULL ) {
 942                         /* all user attrs request, skip operational attributes */
 943                         if( is_at_operational( desc->ad_type ) ) {
 944                                 continue;
 945                         }
 946
 947                 } else {
 948                         /* specific attrs requested */
 949                         if ( is_at_operational( desc->ad_type ) ) {
 950                                 /* if not explicitly requested */
 951                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
 952                                         /* if not all op attrs requested, skip */
 953                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
 954                                                 continue;
 955                                         /* if DSA-specific and replicating, skip */
 956                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
 957                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
 958                                                 continue;
 959                                 }
 960                         } else {
 961                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 962                                         continue;
 963                                 }
 964                         }
 965                 }
 966
 967                 if ( attrsonly ) {
 968                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 969                                 ACL_READ, &acl_state ) )
 970                         {
 971                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 972                                         "conn %lu access to attribute %s not allowed\n",
 973                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 974                                 continue;
 975                         }
 976
 977                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 978                                 Debug( LDAP_DEBUG_ANY,
 979                                         "send_search_entry: conn %lu  ber_printf failed\n",
 980                                         op->o_connid, 0, 0 );
 981
 982                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 983                                 send_ldap_error( op, rs, LDAP_OTHER,
 984                                         "encoding description error");
 985                                 rc = rs->sr_err;
 986                                 goto error_return;
 987                         }
 988                         finish = 1;
 989
 990                 } else {
 991                         int first = 1;
 992                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 993                                 if ( ! access_allowed( op, rs->sr_entry,
 994                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 995                                 {
 996                                         Debug( LDAP_DEBUG_ACL,
 997                                                 "send_search_entry: conn %lu "
 998                                                 "access to attribute %s, value #%d not allowed\n",
 999                                                 op->o_connid, desc->ad_cname.bv_val, i );
1000
1001                                         continue;
1002                                 }
1003
1004                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1005                                         continue;
1006                                 }
1007
1008                                 if ( first ) {
1009                                         first = 0;
1010                                         finish = 1;
1011                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1012                                                 Debug( LDAP_DEBUG_ANY,
1013                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1014                                                         op->o_connid, 0, 0 );
1015
1016                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1017                                                 send_ldap_error( op, rs, LDAP_OTHER,
1018                                                         "encoding description error");
1019                                                 rc = rs->sr_err;
1020                                                 goto error_return;
1021                                         }
1022                                 }
1023                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1024                                         Debug( LDAP_DEBUG_ANY,
1025                                                 "send_search_entry: conn %lu  "
1026                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1027
1028                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1029                                         send_ldap_error( op, rs, LDAP_OTHER,
1030                                                 "encoding values error" );
1031                                         rc = rs->sr_err;
1032                                         goto error_return;
1033                                 }
1034                         }
1035                 }
1036
1037                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1038                         Debug( LDAP_DEBUG_ANY,
1039                                 "send_search_entry: conn %lu ber_printf failed\n",
1040                                 op->o_connid, 0, 0 );
1041
1042                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1043                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1044                         rc = rs->sr_err;
1045                         goto error_return;
1046                 }
1047         }
1048
1049         /* NOTE: moved before overlays callback circling because
1050          * they may modify entry and other stuff in rs */
1051         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1052                 int     k = 0;
1053                 size_t  size;
1054
1055                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1056                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1057                 }
1058
1059                 size = i * sizeof(char *) + k;
1060                 if ( size > 0 ) {
1061                         char    *a_flags, **tmp;
1062
1063                         /*
1064                          * Reuse previous memory - we likely need less space
1065                          * for operational attributes
1066                          */
1067                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1068                                 op->o_tmpmemctx );
1069                         if ( tmp == NULL ) {
1070                                 Debug( LDAP_DEBUG_ANY,
1071                                         "send_search_entry: conn %lu "
1072                                         "not enough memory "
1073                                         "for matched values filtering\n",
1074                                         op->o_connid, 0, 0 );
1075                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1076                                 send_ldap_error( op, rs, LDAP_OTHER,
1077                                         "not enough memory for matched values filtering" );
1078                                 goto error_return;
1079                         }
1080                         e_flags = tmp;
1081                         a_flags = (char *)(e_flags + i);
1082                         memset( a_flags, 0, k );
1083                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1084                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1085                                 e_flags[i] = a_flags;
1086                                 a_flags += j;
1087                         }
1088                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1089
1090                         if ( rc == -1 ) {
1091                                 Debug( LDAP_DEBUG_ANY,
1092                                         "send_search_entry: conn %lu "
1093                                         "matched values filtering failed\n",
1094                                         op->o_connid ? op->o_connid : 0, 0, 0);
1095                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1096                                 send_ldap_error( op, rs, LDAP_OTHER,
1097                                         "matched values filtering error" );
1098                                 rc = rs->sr_err;
1099                                 goto error_return;
1100                         }
1101                 }
1102         }
1103
1104         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1105                 AttributeDescription *desc = a->a_desc;
1106
1107                 if ( rs->sr_attrs == NULL ) {
1108                         /* all user attrs request, skip operational attributes */
1109                         if( is_at_operational( desc->ad_type ) ) {
1110                                 continue;
1111                         }
1112
1113                 } else {
1114                         /* specific attrs requested */
1115                         if( is_at_operational( desc->ad_type ) ) {
1116                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1117                                         !ad_inlist( desc, rs->sr_attrs ) )
1118                                 {
1119                                         continue;
1120                                 }
1121                         } else {
1122                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1123                                         continue;
1124                                 }
1125                         }
1126                 }
1127
1128                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1129                         ACL_READ, &acl_state ) )
1130                 {
1131                         Debug( LDAP_DEBUG_ACL,
1132                                 "send_search_entry: conn %lu "
1133                                 "access to attribute %s not allowed\n",
1134                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1135
1136                         continue;
1137                 }
1138
1139                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1140                 if ( rc == -1 ) {
1141                         Debug( LDAP_DEBUG_ANY,
1142                                 "send_search_entry: conn %lu  "
1143                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1144
1145                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1146                         send_ldap_error( op, rs, LDAP_OTHER,
1147                                 "encoding description error" );
1148                         rc = rs->sr_err;
1149                         goto error_return;
1150                 }
1151
1152                 if ( ! attrsonly ) {
1153                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1154                                 if ( ! access_allowed( op, rs->sr_entry,
1155                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1156                                 {
1157                                         Debug( LDAP_DEBUG_ACL,
1158                                                 "send_search_entry: conn %lu "
1159                                                 "access to %s, value %d not allowed\n",
1160                                                 op->o_connid, desc->ad_cname.bv_val, i );
1161
1162                                         continue;
1163                                 }
1164
1165                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1166                                         continue;
1167                                 }
1168
1169                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1170                                         Debug( LDAP_DEBUG_ANY,
1171                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1172                                                 op->o_connid, 0, 0 );
1173
1174                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1175                                         send_ldap_error( op, rs, LDAP_OTHER,
1176                                                 "encoding values error" );
1177                                         rc = rs->sr_err;
1178                                         goto error_return;
1179                                 }
1180                         }
1181                 }
1182
1183                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1184                         Debug( LDAP_DEBUG_ANY,
1185                                 "send_search_entry: conn %lu  ber_printf failed\n",
1186                                 op->o_connid, 0, 0 );
1187
1188                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1189                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1190                         rc = rs->sr_err;
1191                         goto error_return;
1192                 }
1193         }
1194
1195         /* free e_flags */
1196         if ( e_flags ) {
1197                 slap_sl_free( e_flags, op->o_tmpmemctx );
1198                 e_flags = NULL;
1199         }
1200
1201         rc = ber_printf( ber, /*{{*/ "}N}" );
1202
1203         if( rc != -1 ) {
1204                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1205         }
1206
1207         if( rc != -1 ) {
1208 #ifdef LDAP_CONNECTIONLESS
1209                 if( op->o_conn && op->o_conn->c_is_udp ) {
1210                         if ( op->o_protocol != LDAP_VERSION2 ) {
1211                                 rc = ber_printf( ber, /*{*/ "N}" );
1212                         }
1213                 } else
1214 #endif
1215                 if ( op->o_res_ber == NULL ) {
1216                         rc = ber_printf( ber, /*{*/ "N}" );
1217                 }
1218         }
1219
1220         if ( rc == -1 ) {
1221                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1222
1223                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1224                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1225                 rc = rs->sr_err;
1226                 goto error_return;
1227         }
1228
1229         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1230             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1231
1232         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1233                 be_entry_release_rw( op, rs->sr_entry, 0 );
1234                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1235                 rs->sr_entry = NULL;
1236         }
1237
1238         if ( op->o_res_ber == NULL ) {
1239                 bytes = send_ldap_ber( op->o_conn, ber );
1240                 ber_free_buf( ber );
1241
1242                 if ( bytes < 0 ) {
1243                         Debug( LDAP_DEBUG_ANY,
1244                                 "send_search_entry: conn %lu  ber write failed.\n",
1245                                 op->o_connid, 0, 0 );
1246
1247                         rc = LDAP_UNAVAILABLE;
1248                         goto error_return;
1249                 }
1250                 rs->sr_nentries++;
1251
1252                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1253                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1254                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1255                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1256                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1257         }
1258
1259         Debug( LDAP_DEBUG_TRACE,
1260                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1261
1262         rc = LDAP_SUCCESS;
1263
1264 error_return:;
1265         if ( op->o_callback ) {
1266                 (void)slap_cleanup_play( op, rs );
1267         }
1268
1269         if ( e_flags ) {
1270                 slap_sl_free( e_flags, op->o_tmpmemctx );
1271         }
1272
1273         if ( rs->sr_operational_attrs ) {
1274                 attrs_free( rs->sr_operational_attrs );
1275                 rs->sr_operational_attrs = NULL;
1276         }
1277         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1278
1279         /* FIXME: I think rs->sr_type should be explicitly set to
1280          * REP_SEARCH here. That's what it was when we entered this
1281          * function. send_ldap_error may have changed it, but we
1282          * should set it back so that the cleanup functions know
1283          * what they're doing.
1284          */
1285         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1286                 && rs->sr_entry
1287                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1288         {
1289                 entry_free( rs->sr_entry );
1290                 rs->sr_entry = NULL;
1291                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1292         }
1293
1294         return( rc );
1295 }
1296
1297 int
1298 slap_send_search_reference( Operation *op, SlapReply *rs )
1299 {
1300         BerElementBuffer berbuf;
1301         BerElement      *ber = (BerElement *) &berbuf;
1302         int rc = 0;
1303         int bytes;
1304         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1305
1306         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1307         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1308
1309         rs->sr_type = REP_SEARCHREF;
1310         if ( op->o_callback ) {
1311                 rc = slap_response_play( op, rs );
1312                 if ( rc != SLAP_CB_CONTINUE ) {
1313                         goto rel;
1314                 }
1315         }
1316
1317         Debug( LDAP_DEBUG_TRACE,
1318                 "=> send_search_reference: dn=\"%s\"\n",
1319                 edn, 0, 0 );
1320
1321         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1322                 ad_entry, NULL, ACL_READ, NULL ) )
1323         {
1324                 Debug( LDAP_DEBUG_ACL,
1325                         "send_search_reference: access to entry not allowed\n",
1326                     0, 0, 0 );
1327                 rc = 1;
1328                 goto rel;
1329         }
1330
1331         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1332                 ad_ref, NULL, ACL_READ, NULL ) )
1333         {
1334                 Debug( LDAP_DEBUG_ACL,
1335                         "send_search_reference: access "
1336                         "to reference not allowed\n",
1337                     0, 0, 0 );
1338                 rc = 1;
1339                 goto rel;
1340         }
1341
1342         if( op->o_domain_scope ) {
1343                 Debug( LDAP_DEBUG_ANY,
1344                         "send_search_reference: domainScope control in (%s)\n",
1345                         edn, 0, 0 );
1346                 rc = 0;
1347                 goto rel;
1348         }
1349
1350         if( rs->sr_ref == NULL ) {
1351                 Debug( LDAP_DEBUG_ANY,
1352                         "send_search_reference: null ref in (%s)\n",
1353                         edn, 0, 0 );
1354                 rc = 1;
1355                 goto rel;
1356         }
1357
1358         if( op->o_protocol < LDAP_VERSION3 ) {
1359                 rc = 0;
1360                 /* save the references for the result */
1361                 if( rs->sr_ref[0].bv_val != NULL ) {
1362                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1363                                 rc = LDAP_OTHER;
1364                 }
1365                 goto rel;
1366         }
1367
1368 #ifdef LDAP_CONNECTIONLESS
1369         if( op->o_conn && op->o_conn->c_is_udp ) {
1370                 ber = op->o_res_ber;
1371         } else
1372 #endif
1373         {
1374                 ber_init_w_nullc( ber, LBER_USE_DER );
1375                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1376         }
1377
1378         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1379                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1380
1381         if( rc != -1 ) {
1382                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1383         }
1384
1385         if( rc != -1 ) {
1386                 rc = ber_printf( ber, /*"{"*/ "N}" );
1387         }
1388
1389         if ( rc == -1 ) {
1390                 Debug( LDAP_DEBUG_ANY,
1391                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1392
1393 #ifdef LDAP_CONNECTIONLESS
1394                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1395 #endif
1396                 ber_free_buf( ber );
1397                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1398                 goto rel;
1399         }
1400
1401         rc = 0;
1402         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1403                 assert( rs->sr_entry != NULL );
1404                 be_entry_release_rw( op, rs->sr_entry, 0 );
1405                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1406                 rs->sr_entry = NULL;
1407         }
1408
1409 #ifdef LDAP_CONNECTIONLESS
1410         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1411 #endif
1412         bytes = send_ldap_ber( op->o_conn, ber );
1413         ber_free_buf( ber );
1414
1415         if ( bytes < 0 ) {
1416                 rc = LDAP_UNAVAILABLE;
1417         } else {
1418                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1419                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1420                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1421                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1422                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1423         }
1424 #ifdef LDAP_CONNECTIONLESS
1425         }
1426 #endif
1427         if ( rs->sr_ref != NULL ) {
1428                 int     r;
1429
1430                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1431                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1432                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1433                                 0, 0 );
1434                 }
1435
1436         } else {
1437                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1438                         op->o_log_prefix, 0, 0, 0, 0 );
1439         }
1440
1441         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1442
1443 rel:
1444         if ( op->o_callback ) {
1445                 (void)slap_cleanup_play( op, rs );
1446         }
1447
1448         return rc;
1449 }
1450
1451 int
1452 str2result(
1453     char        *s,
1454     int         *code,
1455     char        **matched,
1456     char        **info )
1457 {
1458         int     rc;
1459         char    *c;
1460
1461         *code = LDAP_SUCCESS;
1462         *matched = NULL;
1463         *info = NULL;
1464
1465         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1466                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1467                     s, 0, 0 );
1468
1469                 return( -1 );
1470         }
1471
1472         rc = 0;
1473         while ( (s = strchr( s, '\n' )) != NULL ) {
1474                 *s++ = '\0';
1475                 if ( *s == '\0' ) {
1476                         break;
1477                 }
1478                 if ( (c = strchr( s, ':' )) != NULL ) {
1479                         c++;
1480                 }
1481
1482                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1483                         char    *next = NULL;
1484                         long    retcode;
1485
1486                         if ( c == NULL ) {
1487                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1488                                     s, 0, 0 );
1489                                 rc = -1;
1490                                 continue;
1491                         }
1492
1493                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1494                         if ( c[ 0 ] == '\0' ) {
1495                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1496                                     s, 0, 0 );
1497                                 rc = -1;
1498                                 continue;
1499                         }
1500
1501                         retcode = strtol( c, &next, 10 );
1502                         if ( next == NULL || next == c ) {
1503                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1504                                     s, 0, 0 );
1505                                 rc = -1;
1506                                 continue;
1507                         }
1508
1509                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1510                         if ( next[ 0 ] != '\0' ) {
1511                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1512                                     s, 0, 0 );
1513                                 rc = -1;
1514                                 continue;
1515                         }
1516
1517                         /* FIXME: what if it's larger that max int? */
1518                         *code = (int)retcode;
1519
1520                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1521                         if ( c != NULL ) {
1522                                 *matched = c;
1523                         }
1524                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1525                         if ( c != NULL ) {
1526                                 *info = c;
1527                         }
1528                 } else {
1529                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1530                             s, 0, 0 );
1531
1532                         rc = -1;
1533                 }
1534         }
1535
1536         return( rc );
1537 }
1538
1539 int slap_read_controls(
1540         Operation *op,
1541         SlapReply *rs,
1542         Entry *e,
1543         const struct berval *oid,
1544         LDAPControl **ctrl )
1545 {
1546         int rc;
1547         struct berval bv;
1548         BerElementBuffer berbuf;
1549         BerElement *ber = (BerElement *) &berbuf;
1550         LDAPControl c;
1551         Operation myop;
1552
1553         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1554                 op->o_log_prefix, oid->bv_val, e->e_dn );
1555
1556         rs->sr_entry = e;
1557         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1558                 op->o_preread_attrs : op->o_postread_attrs;
1559
1560         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1561         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1562
1563         ber_init2( ber, &bv, LBER_USE_DER );
1564         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1565
1566         /* create new operation */
1567         myop = *op;
1568         /* FIXME: o_bd needed for ACL */
1569         myop.o_bd = op->o_bd;
1570         myop.o_res_ber = ber;
1571         myop.o_callback = NULL;
1572         myop.ors_slimit = 1;
1573
1574         rc = slap_send_search_entry( &myop, rs );
1575         if( rc ) return rc;
1576
1577         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1578
1579         if( rc == -1 ) return LDAP_OTHER;
1580
1581         c.ldctl_oid = oid->bv_val;
1582         c.ldctl_iscritical = 0;
1583
1584         if ( *ctrl == NULL ) {
1585                 /* first try */
1586                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1587         } else {
1588                 /* retry: free previous try */
1589                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1590         }
1591
1592         **ctrl = c;
1593         return LDAP_SUCCESS;
1594 }
1595
1596 /* Map API errors to protocol errors... */
1597 int
1598 slap_map_api2result( SlapReply *rs )
1599 {
1600         switch(rs->sr_err) {
1601         case LDAP_SERVER_DOWN:
1602                 return LDAP_UNAVAILABLE;
1603         case LDAP_LOCAL_ERROR:
1604                 return LDAP_OTHER;
1605         case LDAP_ENCODING_ERROR:
1606         case LDAP_DECODING_ERROR:
1607                 return LDAP_PROTOCOL_ERROR;
1608         case LDAP_TIMEOUT:
1609                 return LDAP_UNAVAILABLE;
1610         case LDAP_AUTH_UNKNOWN:
1611                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1612         case LDAP_FILTER_ERROR:
1613                 rs->sr_text = "Filter error";
1614                 return LDAP_OTHER;
1615         case LDAP_USER_CANCELLED:
1616                 rs->sr_text = "User cancelled";
1617                 return LDAP_OTHER;
1618         case LDAP_PARAM_ERROR:
1619                 return LDAP_PROTOCOL_ERROR;
1620         case LDAP_NO_MEMORY:
1621                 return LDAP_OTHER;
1622         case LDAP_CONNECT_ERROR:
1623                 return LDAP_UNAVAILABLE;
1624         case LDAP_NOT_SUPPORTED:
1625                 return LDAP_UNWILLING_TO_PERFORM;
1626         case LDAP_CONTROL_NOT_FOUND:
1627                 return LDAP_PROTOCOL_ERROR;
1628         case LDAP_NO_RESULTS_RETURNED:
1629                 return LDAP_NO_SUCH_OBJECT;
1630         case LDAP_MORE_RESULTS_TO_RETURN:
1631                 rs->sr_text = "More results to return";
1632                 return LDAP_OTHER;
1633         case LDAP_CLIENT_LOOP:
1634         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1635                 return LDAP_LOOP_DETECT;
1636         default:
1637                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1638                 return rs->sr_err;
1639         }
1640 }
1641
1642
1643 slap_mask_t
1644 slap_attr_flags( AttributeName *an )
1645 {
1646         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1647
1648         if ( an == NULL ) {
1649                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1650
1651         } else {
1652                 flags |= an_find( an, &AllOper )
1653                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1654                 flags |= an_find( an, &AllUser )
1655                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1656         }
1657
1658         return flags;
1659 }
1660