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 1998-2006 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 int slap_replog_cb( Operation *op, SlapReply *rs )
  58 {
  59         if ( rs->sr_err == LDAP_SUCCESS ) {
  60                 replog( op );
  61         }
  62         return SLAP_CB_CONTINUE;
  63 }
  64
  65 static char *v2ref( BerVarray ref, const char *text )
  66 {
  67         size_t len = 0, i = 0;
  68         char *v2;
  69
  70         if(ref == NULL) {
  71                 if (text) {
  72                         return ch_strdup(text);
  73                 } else {
  74                         return NULL;
  75                 }
  76         }
  77
  78         if ( text != NULL ) {
  79                 len = strlen( text );
  80                 if (text[len-1] != '\n') {
  81                     i = 1;
  82                 }
  83         }
  84
  85         v2 = ch_malloc( len+i+sizeof("Referral:") );
  86
  87         if( text != NULL ) {
  88                 strcpy(v2, text);
  89                 if( i ) {
  90                         v2[len++] = '\n';
  91                 }
  92         }
  93         strcpy( v2+len, "Referral:" );
  94         len += sizeof("Referral:");
  95
  96         for( i=0; ref[i].bv_val != NULL; i++ ) {
  97                 v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
  98                 v2[len-1] = '\n';
  99                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 100                 len += ref[i].bv_len;
 101                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 102                         ++len;
 103                 }
 104         }
 105
 106         v2[len-1] = '\0';
 107         return v2;
 108 }
 109
 110 ber_tag_t
 111 slap_req2res( ber_tag_t tag )
 112 {
 113         switch( tag ) {
 114         case LDAP_REQ_ADD:
 115         case LDAP_REQ_BIND:
 116         case LDAP_REQ_COMPARE:
 117         case LDAP_REQ_EXTENDED:
 118         case LDAP_REQ_MODIFY:
 119         case LDAP_REQ_MODRDN:
 120                 tag++;
 121                 break;
 122
 123         case LDAP_REQ_DELETE:
 124                 tag = LDAP_RES_DELETE;
 125                 break;
 126
 127         case LDAP_REQ_ABANDON:
 128         case LDAP_REQ_UNBIND:
 129                 tag = LBER_SEQUENCE;
 130                 break;
 131
 132         case LDAP_REQ_SEARCH:
 133                 tag = LDAP_RES_SEARCH_RESULT;
 134                 break;
 135
 136         default:
 137                 tag = LBER_SEQUENCE;
 138         }
 139
 140         return tag;
 141 }
 142
 143 static long send_ldap_ber(
 144         Connection *conn,
 145         BerElement *ber )
 146 {
 147         ber_len_t bytes;
 148
 149         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 150
 151         /* write only one pdu at a time - wait til it's our turn */
 152         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 153
 154         /* lock the connection */
 155         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 156
 157         /* write the pdu */
 158         while( 1 ) {
 159                 int err;
 160                 ber_socket_t    sd;
 161
 162                 if ( connection_state_closing( conn ) ) {
 163                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 164                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 165
 166                         return 0;
 167                 }
 168
 169                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 170                         break;
 171                 }
 172
 173                 err = errno;
 174
 175                 /*
 176                  * we got an error.  if it's ewouldblock, we need to
 177                  * wait on the socket being writable.  otherwise, figure
 178                  * it's a hard error and return.
 179                  */
 180
 181                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 182                     err, sock_errstr(err), 0 );
 183
 184                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 185                         connection_closing( conn, "connection lost on write" );
 186
 187                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 188                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 189
 190                         return( -1 );
 191                 }
 192
 193                 /* wait for socket to be write-ready */
 194                 conn->c_writewaiter = 1;
 195                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 196                 slapd_set_write( sd, 1 );
 197
 198                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 199                 conn->c_writewaiter = 0;
 200         }
 201
 202         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 203         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 204
 205         return bytes;
 206 }
 207
 208 static int
 209 send_ldap_control( BerElement *ber, LDAPControl *c )
 210 {
 211         int rc;
 212
 213         assert( c != NULL );
 214
 215         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 216
 217         if( c->ldctl_iscritical ) {
 218                 rc = ber_printf( ber, "b",
 219                         (ber_int_t) c->ldctl_iscritical ) ;
 220                 if( rc == -1 ) return rc;
 221         }
 222
 223         if( c->ldctl_value.bv_val != NULL ) {
 224                 rc = ber_printf( ber, "O", &c->ldctl_value );
 225                 if( rc == -1 ) return rc;
 226         }
 227
 228         rc = ber_printf( ber, /*{*/"N}" );
 229         if( rc == -1 ) return rc;
 230
 231         return 0;
 232 }
 233
 234 static int
 235 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 236 {
 237         int rc;
 238
 239         if( c == NULL )
 240                 return 0;
 241
 242         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 243         if( rc == -1 ) return rc;
 244
 245         for( ; *c != NULL; c++) {
 246                 rc = send_ldap_control( ber, *c );
 247                 if( rc == -1 ) return rc;
 248         }
 249
 250 #ifdef LDAP_DEVEL
 251         /* this is a hack to avoid having to modify op->s_ctrls */
 252         if( o->o_sortedresults ) {
 253                 BerElementBuffer berbuf;
 254                 BerElement *sber = (BerElement *) &berbuf;
 255                 LDAPControl sorted;
 256                 BER_BVZERO( &sorted.ldctl_value );
 257                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 258                 sorted.ldctl_iscritical = 0;
 259
 260                 ber_init2( sber, NULL, LBER_USE_DER );
 261
 262                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 263
 264                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 265                         return -1;
 266                 }
 267
 268                 (void) ber_free_buf( ber );
 269
 270                 rc = send_ldap_control( ber, &sorted );
 271                 if( rc == -1 ) return rc;
 272         }
 273 #endif
 274
 275         rc = ber_printf( ber, /*{*/"N}" );
 276
 277         return rc;
 278 }
 279
 280 /*
 281  * slap_response_play()
 282  *
 283  * plays the callback list; rationale: a callback can
 284  *   - remove itself from the list, by setting op->o_callback = NULL;
 285  *     malloc()'ed callbacks should free themselves from inside the
 286  *     sc_response() function.
 287  *   - replace itself with another (list of) callback(s), by setting
 288  *     op->o_callback = a new (list of) callback(s); in this case, it
 289  *     is the callback's responsibility to to append existing subsequent
 290  *     callbacks to the end of the list that is passed to the sc_response()
 291  *     function.
 292  *   - modify the list of subsequent callbacks by modifying the value
 293  *     of the sc_next field from inside the sc_response() function; this
 294  *     case does not require any handling from inside slap_response_play()
 295  *
 296  * To stop execution of the playlist, the sc_response() function must return
 297  * a value different from SLAP_SC_CONTINUE.
 298  *
 299  * The same applies to slap_cleanup_play(); only, there is no means to stop
 300  * execution of the playlist, since all cleanup functions must be called.
 301  */
 302 static int
 303 slap_response_play(
 304         Operation *op,
 305         SlapReply *rs )
 306 {
 307         int rc;
 308
 309 #ifdef LDAP_DEVEL
 310         slap_callback   *sc = op->o_callback, **scp;
 311
 312         rc = SLAP_CB_CONTINUE;
 313         for ( scp = &sc; *scp; ) {
 314                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 315
 316                 op->o_callback = *scp;
 317                 if ( op->o_callback->sc_response ) {
 318                         rc = op->o_callback->sc_response( op, rs );
 319                         if ( op->o_callback == NULL ) {
 320                                 /* the callback has been removed;
 321                                  * repair the list */
 322                                 *scp = sc_next;
 323                                 sc_nextp = scp;
 324
 325                         } else if ( op->o_callback != *scp ) {
 326                                 /* a new callback has been inserted
 327                                  * in place of the existing one; repair the list */
 328                                 *scp = op->o_callback;
 329                                 sc_nextp = scp;
 330                         }
 331                         if ( rc != SLAP_CB_CONTINUE ) break;
 332                 }
 333                 scp = sc_nextp;
 334         }
 335
 336         op->o_callback = sc;
 337 #else /* ! LDAP_DEVEL */
 338         slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 339
 340         rc = SLAP_CB_CONTINUE;
 341         for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 342                 sc_next = op->o_callback->sc_next;
 343                 if ( op->o_callback->sc_response ) {
 344                         slap_callback *sc2 = op->o_callback;
 345                         rc = op->o_callback->sc_response( op, rs );
 346                         if ( op->o_callback != sc2 ) {
 347                                 *sc_prev = op->o_callback;
 348                         }
 349                         if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 350                         if ( op->o_callback != sc2 ) continue;
 351                 }
 352                 sc_prev = &op->o_callback->sc_next;
 353         }
 354
 355         op->o_callback = sc;
 356 #endif /* ! LDAP_DEVEL */
 357
 358         return rc;
 359 }
 360
 361 static int
 362 slap_cleanup_play(
 363         Operation *op,
 364         SlapReply *rs )
 365 {
 366 #ifdef LDAP_DEVEL
 367         slap_callback   *sc = op->o_callback, **scp;
 368
 369         for ( scp = &sc; *scp; ) {
 370                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 371
 372                 op->o_callback = *scp;
 373                 if ( op->o_callback->sc_cleanup ) {
 374                         (void)op->o_callback->sc_cleanup( op, rs );
 375                         if ( op->o_callback == NULL ) {
 376                                 /* the callback has been removed;
 377                                  * repair the list */
 378                                 *scp = sc_next;
 379                                 sc_nextp = scp;
 380
 381                         } else if ( op->o_callback != *scp ) {
 382                                 /* a new callback has been inserted
 383                                  * after the existing one; repair the list */
 384                                 /* a new callback has been inserted
 385                                  * in place of the existing one; repair the list */
 386                                 *scp = op->o_callback;
 387                                 sc_nextp = scp;
 388                         }
 389                         /* don't care about the result; do all cleanup */
 390                 }
 391                 scp = sc_nextp;
 392         }
 393
 394         op->o_callback = sc;
 395 #else /* ! LDAP_DEVEL */
 396         slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 397
 398         for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 399                 sc_next = op->o_callback->sc_next;
 400                 if ( op->o_callback->sc_cleanup ) {
 401                         slap_callback *sc2 = op->o_callback;
 402                         (void)op->o_callback->sc_cleanup( op, rs );
 403                         if ( op->o_callback != sc2 ) {
 404                                 *sc_prev = op->o_callback;
 405                         }
 406                         if ( !op->o_callback ) break;
 407                         if ( op->o_callback != sc2 ) continue;
 408                 }
 409                 sc_prev = &op->o_callback->sc_next;
 410         }
 411
 412         op->o_callback = sc;
 413 #endif /* ! LDAP_DEVEL */
 414
 415         return LDAP_SUCCESS;
 416 }
 417
 418 static int
 419 send_ldap_response(
 420         Operation *op,
 421         SlapReply *rs )
 422 {
 423         BerElementBuffer berbuf;
 424         BerElement      *ber = (BerElement *) &berbuf;
 425         int             rc = LDAP_SUCCESS;
 426         long    bytes;
 427
 428         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 429                 rc = SLAPD_ABANDON;
 430                 goto clean2;
 431         }
 432
 433         if ( op->o_callback ) {
 434                 rc = slap_response_play( op, rs );
 435                 if ( rc != SLAP_CB_CONTINUE ) {
 436                         goto clean2;
 437                 }
 438         }
 439
 440 #ifdef LDAP_CONNECTIONLESS
 441         if (op->o_conn && op->o_conn->c_is_udp)
 442                 ber = op->o_res_ber;
 443         else
 444 #endif
 445         {
 446                 ber_init_w_nullc( ber, LBER_USE_DER );
 447                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 448         }
 449
 450         Debug( LDAP_DEBUG_TRACE,
 451                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 452                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 453
 454         if( rs->sr_ref ) {
 455                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 456                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 457                         NULL, NULL );
 458         }
 459
 460 #ifdef LDAP_CONNECTIONLESS
 461         if (op->o_conn && op->o_conn->c_is_udp &&
 462                 op->o_protocol == LDAP_VERSION2 )
 463         {
 464                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 465                         rs->sr_tag, rs->sr_err,
 466                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 467                 rs->sr_text == NULL ? "" : rs->sr_text );
 468         } else
 469 #endif
 470         if ( rs->sr_type == REP_INTERMEDIATE ) {
 471             rc = ber_printf( ber, "{it{" /*"}}"*/,
 472                         rs->sr_msgid, rs->sr_tag );
 473
 474         } else {
 475             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 476                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 477                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 478                 rs->sr_text == NULL ? "" : rs->sr_text );
 479         }
 480
 481         if( rc != -1 ) {
 482                 if ( rs->sr_ref != NULL ) {
 483                         assert( rs->sr_err == LDAP_REFERRAL );
 484                         rc = ber_printf( ber, "t{W}",
 485                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 486                 } else {
 487                         assert( rs->sr_err != LDAP_REFERRAL );
 488                 }
 489         }
 490
 491         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 492                 rc = ber_printf( ber, "tO",
 493                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 494         }
 495
 496         if( rc != -1 &&
 497                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 498         {
 499                 if ( rs->sr_rspoid != NULL ) {
 500                         rc = ber_printf( ber, "ts",
 501                                 rs->sr_type == REP_EXTENDED
 502                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 503                                 rs->sr_rspoid );
 504                 }
 505                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 506                         rc = ber_printf( ber, "tO",
 507                                 rs->sr_type == REP_EXTENDED
 508                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 509                                 rs->sr_rspdata );
 510                 }
 511         }
 512
 513         if( rc != -1 ) {
 514                 rc = ber_printf( ber, /*"{"*/ "N}" );
 515         }
 516
 517         if( rc != -1 ) {
 518                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 519         }
 520
 521         if( rc != -1 ) {
 522                 rc = ber_printf( ber, /*"{"*/ "N}" );
 523         }
 524
 525 #ifdef LDAP_CONNECTIONLESS
 526         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 527                 && rc != -1 )
 528         {
 529                 rc = ber_printf( ber, /*"{"*/ "N}" );
 530         }
 531 #endif
 532
 533         if ( rc == -1 ) {
 534                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 535
 536 #ifdef LDAP_CONNECTIONLESS
 537                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 538 #endif
 539                 {
 540                         ber_free_buf( ber );
 541                 }
 542                 goto cleanup;
 543         }
 544
 545         /* send BER */
 546         bytes = send_ldap_ber( op->o_conn, ber );
 547 #ifdef LDAP_CONNECTIONLESS
 548         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 549 #endif
 550         {
 551                 ber_free_buf( ber );
 552         }
 553
 554         if ( bytes < 0 ) {
 555                 Debug( LDAP_DEBUG_ANY,
 556                         "send_ldap_response: ber write failed\n",
 557                         0, 0, 0 );
 558
 559                 goto cleanup;
 560         }
 561
 562         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 563         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 564         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 565         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 566
 567 cleanup:;
 568         /* Tell caller that we did this for real, as opposed to being
 569          * overridden by a callback
 570          */
 571         rc = SLAP_CB_CONTINUE;
 572
 573 clean2:;
 574         if ( op->o_callback ) {
 575                 (void)slap_cleanup_play( op, rs );
 576         }
 577
 578         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 579                 free( (char *)rs->sr_matched );
 580                 rs->sr_matched = NULL;
 581         }
 582
 583         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 584                 ber_bvarray_free( rs->sr_ref );
 585                 rs->sr_ref = NULL;
 586         }
 587
 588         return rc;
 589 }
 590
 591
 592 void
 593 send_ldap_disconnect( Operation *op, SlapReply *rs )
 594 {
 595 #define LDAP_UNSOLICITED_ERROR(e) \
 596         (  (e) == LDAP_PROTOCOL_ERROR \
 597         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 598         || (e) == LDAP_UNAVAILABLE )
 599
 600         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 601
 602         rs->sr_type = REP_EXTENDED;
 603
 604         Debug( LDAP_DEBUG_TRACE,
 605                 "send_ldap_disconnect %d:%s\n",
 606                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 607
 608         if ( op->o_protocol < LDAP_VERSION3 ) {
 609                 rs->sr_rspoid = NULL;
 610                 rs->sr_tag = slap_req2res( op->o_tag );
 611                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 612
 613         } else {
 614                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 615                 rs->sr_tag = LDAP_RES_EXTENDED;
 616                 rs->sr_msgid = 0;
 617         }
 618
 619         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 620                 Statslog( LDAP_DEBUG_STATS,
 621                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 622                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 623                         rs->sr_text ? rs->sr_text : "", 0 );
 624         }
 625 }
 626
 627 void
 628 slap_send_ldap_result( Operation *op, SlapReply *rs )
 629 {
 630         char *tmp = NULL;
 631         const char *otext = rs->sr_text;
 632         BerVarray oref = rs->sr_ref;
 633
 634         rs->sr_type = REP_RESULT;
 635
 636         /* Propagate Abandons so that cleanup callbacks can be processed */
 637         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 638                 goto abandon;
 639
 640         assert( !LDAP_API_ERROR( rs->sr_err ) );
 641
 642         Debug( LDAP_DEBUG_TRACE,
 643                 "send_ldap_result: %s p=%d\n",
 644                 op->o_log_prefix, op->o_protocol, 0 );
 645
 646         Debug( LDAP_DEBUG_ARGS,
 647                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 648                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 649                 rs->sr_text ? rs->sr_text : "" );
 650
 651
 652         if( rs->sr_ref ) {
 653                 Debug( LDAP_DEBUG_ARGS,
 654                         "send_ldap_result: referral=\"%s\"\n",
 655                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 656                         NULL, NULL );
 657         }
 658
 659         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 660
 661         if ( rs->sr_err == LDAP_REFERRAL ) {
 662                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 663
 664                 if( rs->sr_ref == NULL ) {
 665                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 666                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 667                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 668                 }
 669         }
 670
 671         if ( op->o_protocol < LDAP_VERSION3 ) {
 672                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 673                 rs->sr_text = tmp;
 674                 rs->sr_ref = NULL;
 675         }
 676
 677         rs->sr_tag = slap_req2res( op->o_tag );
 678         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 679
 680 abandon:
 681         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 682                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 683                         char nbuf[64];
 684                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 685                                 rs->sr_err, rs->sr_nentries );
 686
 687                         Statslog( LDAP_DEBUG_STATS,
 688                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 689                                 op->o_log_prefix, rs->sr_tag, nbuf,
 690                                 rs->sr_text ? rs->sr_text : "", 0 );
 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         char            *edn;
 782         int             userattrs;
 783         AccessControlState acl_state = ACL_STATE_INIT;
 784         int                      attrsonly;
 785         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 786
 787         /* a_flags: array of flags telling if the i-th element will be
 788          *          returned or filtered out
 789          * e_flags: array of a_flags
 790          */
 791         char **e_flags = NULL;
 792
 793         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 794                 return LDAP_SIZELIMIT_EXCEEDED;
 795         }
 796
 797         rs->sr_type = REP_SEARCH;
 798
 799         /* eventually will loop through generated operational attribute types
 800          * currently implemented types include:
 801          *      entryDN, subschemaSubentry, and hasSubordinates */
 802         /* NOTE: moved before overlays callback circling because
 803          * they may modify entry and other stuff in rs */
 804         /* check for special all operational attributes ("+") type */
 805         /* FIXME: maybe we could set this flag at the operation level;
 806          * however, in principle the caller of send_search_entry() may
 807          * change the attribute list at each call */
 808         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 809
 810         rc = backend_operational( op, rs );
 811         if ( rc ) {
 812                 goto error_return;
 813         }
 814
 815         if ( op->o_callback ) {
 816                 rc = slap_response_play( op, rs );
 817                 if ( rc != SLAP_CB_CONTINUE ) {
 818                         goto error_return;
 819                 }
 820         }
 821
 822         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 823                 op->o_connid, rs->sr_entry->e_name.bv_val,
 824                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 825
 826         attrsonly = op->ors_attrsonly;
 827
 828         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 829                 Debug( LDAP_DEBUG_ACL,
 830                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 831                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 832
 833                 rc = LDAP_INSUFFICIENT_ACCESS;
 834                 goto error_return;
 835         }
 836
 837         edn = rs->sr_entry->e_nname.bv_val;
 838
 839         if ( op->o_res_ber ) {
 840                 /* read back control or LDAP_CONNECTIONLESS */
 841             ber = op->o_res_ber;
 842         } else {
 843                 struct berval   bv;
 844
 845                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 846                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 847
 848                 ber_init2( ber, &bv, LBER_USE_DER );
 849                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 850         }
 851
 852 #ifdef LDAP_CONNECTIONLESS
 853         if ( op->o_conn && op->o_conn->c_is_udp ) {
 854                 /* CONNECTIONLESS */
 855                 if ( op->o_protocol == LDAP_VERSION2 ) {
 856                 rc = ber_printf(ber, "t{O{" /*}}*/,
 857                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 858                 } else {
 859                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 860                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 861                 }
 862         } else
 863 #endif
 864         if ( op->o_res_ber ) {
 865                 /* read back control */
 866             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 867         } else {
 868             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 869                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 870         }
 871
 872         if ( rc == -1 ) {
 873                 Debug( LDAP_DEBUG_ANY,
 874                         "send_search_entry: conn %lu  ber_printf failed\n",
 875                         op->o_connid, 0, 0 );
 876
 877                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 878                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 879                 rc = rs->sr_err;
 880                 goto error_return;
 881         }
 882
 883         /* check for special all user attributes ("*") type */
 884         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 885
 886         /* create an array of arrays of flags. Each flag corresponds
 887          * to particular value of attribute and equals 1 if value matches
 888          * to ValuesReturnFilter or 0 if not
 889          */
 890         if ( op->o_vrFilter != NULL ) {
 891                 int     k = 0;
 892                 size_t  size;
 893
 894                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 895                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 896                 }
 897
 898                 size = i * sizeof(char *) + k;
 899                 if ( size > 0 ) {
 900                         char    *a_flags;
 901                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 902                         if( e_flags == NULL ) {
 903                         Debug( LDAP_DEBUG_ANY,
 904                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 905                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 906                                 ber_free( ber, 1 );
 907
 908                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 909                                 goto error_return;
 910                         }
 911                         a_flags = (char *)(e_flags + i);
 912                         memset( a_flags, 0, k );
 913                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 914                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 915                                 e_flags[i] = a_flags;
 916                                 a_flags += j;
 917                         }
 918
 919                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 920                         if ( rc == -1 ) {
 921                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 922                                         "conn %lu matched values filtering failed\n",
 923                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 924                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 925                                 send_ldap_error( op, rs, LDAP_OTHER,
 926                                         "matched values filtering error" );
 927                                 rc = rs->sr_err;
 928                                 goto error_return;
 929                         }
 930                 }
 931         }
 932
 933         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 934                 AttributeDescription *desc = a->a_desc;
 935                 int finish = 0;
 936
 937                 if ( rs->sr_attrs == NULL ) {
 938                         /* all user attrs request, skip operational attributes */
 939                         if( is_at_operational( desc->ad_type ) ) {
 940                                 continue;
 941                         }
 942
 943                 } else {
 944                         /* specific attrs requested */
 945                         if ( is_at_operational( desc->ad_type ) ) {
 946                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 947                                         !ad_inlist( desc, rs->sr_attrs ) )
 948                                 {
 949                                         continue;
 950                                 }
 951
 952                         } else {
 953                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 954                                         continue;
 955                                 }
 956                         }
 957                 }
 958
 959                 if ( attrsonly ) {
 960                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 961                                 ACL_READ, &acl_state ) )
 962                         {
 963                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 964                                         "conn %lu access to attribute %s not allowed\n",
 965                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 966                                 continue;
 967                         }
 968
 969                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 970                                 Debug( LDAP_DEBUG_ANY,
 971                                         "send_search_entry: conn %lu  ber_printf failed\n",
 972                                         op->o_connid, 0, 0 );
 973
 974                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 975                                 send_ldap_error( op, rs, LDAP_OTHER,
 976                                         "encoding description error");
 977                                 rc = rs->sr_err;
 978                                 goto error_return;
 979                         }
 980                         finish = 1;
 981
 982                 } else {
 983                         int first = 1;
 984                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 985                                 if ( ! access_allowed( op, rs->sr_entry,
 986                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 987                                 {
 988                                         Debug( LDAP_DEBUG_ACL,
 989                                                 "send_search_entry: conn %lu "
 990                                                 "access to attribute %s, value #%d not allowed\n",
 991                                                 op->o_connid, desc->ad_cname.bv_val, i );
 992
 993                                         continue;
 994                                 }
 995
 996                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 997                                         continue;
 998                                 }
 999
1000                                 if ( first ) {
1001                                         first = 0;
1002                                         finish = 1;
1003                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1004                                                 Debug( LDAP_DEBUG_ANY,
1005                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1006                                                         op->o_connid, 0, 0 );
1007
1008                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1009                                                 send_ldap_error( op, rs, LDAP_OTHER,
1010                                                         "encoding description error");
1011                                                 rc = rs->sr_err;
1012                                                 goto error_return;
1013                                         }
1014                                 }
1015                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1016                                         Debug( LDAP_DEBUG_ANY,
1017                                                 "send_search_entry: conn %lu  "
1018                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1019
1020                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1021                                         send_ldap_error( op, rs, LDAP_OTHER,
1022                                                 "encoding values error" );
1023                                         rc = rs->sr_err;
1024                                         goto error_return;
1025                                 }
1026                         }
1027                 }
1028
1029                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1030                         Debug( LDAP_DEBUG_ANY,
1031                                 "send_search_entry: conn %lu ber_printf failed\n",
1032                                 op->o_connid, 0, 0 );
1033
1034                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1035                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1036                         rc = rs->sr_err;
1037                         goto error_return;
1038                 }
1039         }
1040
1041         /* NOTE: moved before overlays callback circling because
1042          * they may modify entry and other stuff in rs */
1043         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1044                 int     k = 0;
1045                 size_t  size;
1046
1047                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1048                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1049                 }
1050
1051                 size = i * sizeof(char *) + k;
1052                 if ( size > 0 ) {
1053                         char    *a_flags, **tmp;
1054
1055                         /*
1056                          * Reuse previous memory - we likely need less space
1057                          * for operational attributes
1058                          */
1059                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1060                                 op->o_tmpmemctx );
1061                         if ( tmp == NULL ) {
1062                                 Debug( LDAP_DEBUG_ANY,
1063                                         "send_search_entry: conn %lu "
1064                                         "not enough memory "
1065                                         "for matched values filtering\n",
1066                                         op->o_connid, 0, 0 );
1067                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1068                                 send_ldap_error( op, rs, LDAP_OTHER,
1069                                         "not enough memory for matched values filtering" );
1070                                 goto error_return;
1071                         }
1072                         e_flags = tmp;
1073                         a_flags = (char *)(e_flags + i);
1074                         memset( a_flags, 0, k );
1075                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1076                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1077                                 e_flags[i] = a_flags;
1078                                 a_flags += j;
1079                         }
1080                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1081
1082                         if ( rc == -1 ) {
1083                                 Debug( LDAP_DEBUG_ANY,
1084                                         "send_search_entry: conn %lu "
1085                                         "matched values filtering failed\n",
1086                                         op->o_connid ? op->o_connid : 0, 0, 0);
1087                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1088                                 send_ldap_error( op, rs, LDAP_OTHER,
1089                                         "matched values filtering error" );
1090                                 rc = rs->sr_err;
1091                                 goto error_return;
1092                         }
1093                 }
1094         }
1095
1096         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1097                 AttributeDescription *desc = a->a_desc;
1098
1099                 if ( rs->sr_attrs == NULL ) {
1100                         /* all user attrs request, skip operational attributes */
1101                         if( is_at_operational( desc->ad_type ) ) {
1102                                 continue;
1103                         }
1104
1105                 } else {
1106                         /* specific attrs requested */
1107                         if( is_at_operational( desc->ad_type ) ) {
1108                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1109                                         !ad_inlist( desc, rs->sr_attrs ) )
1110                                 {
1111                                         continue;
1112                                 }
1113                         } else {
1114                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1115                                         continue;
1116                                 }
1117                         }
1118                 }
1119
1120                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1121                         ACL_READ, &acl_state ) )
1122                 {
1123                         Debug( LDAP_DEBUG_ACL,
1124                                 "send_search_entry: conn %lu "
1125                                 "access to attribute %s not allowed\n",
1126                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1127
1128                         continue;
1129                 }
1130
1131                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1132                 if ( rc == -1 ) {
1133                         Debug( LDAP_DEBUG_ANY,
1134                                 "send_search_entry: conn %lu  "
1135                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1136
1137                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1138                         send_ldap_error( op, rs, LDAP_OTHER,
1139                                 "encoding description error" );
1140                         rc = rs->sr_err;
1141                         goto error_return;
1142                 }
1143
1144                 if ( ! attrsonly ) {
1145                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1146                                 if ( ! access_allowed( op, rs->sr_entry,
1147                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1148                                 {
1149                                         Debug( LDAP_DEBUG_ACL,
1150                                                 "send_search_entry: conn %lu "
1151                                                 "access to %s, value %d not allowed\n",
1152                                                 op->o_connid, desc->ad_cname.bv_val, i );
1153
1154                                         continue;
1155                                 }
1156
1157                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1158                                         continue;
1159                                 }
1160
1161                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1162                                         Debug( LDAP_DEBUG_ANY,
1163                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1164                                                 op->o_connid, 0, 0 );
1165
1166                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1167                                         send_ldap_error( op, rs, LDAP_OTHER,
1168                                                 "encoding values error" );
1169                                         rc = rs->sr_err;
1170                                         goto error_return;
1171                                 }
1172                         }
1173                 }
1174
1175                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1176                         Debug( LDAP_DEBUG_ANY,
1177                                 "send_search_entry: conn %lu  ber_printf failed\n",
1178                                 op->o_connid, 0, 0 );
1179
1180                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1181                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1182                         rc = rs->sr_err;
1183                         goto error_return;
1184                 }
1185         }
1186
1187         /* free e_flags */
1188         if ( e_flags ) {
1189                 slap_sl_free( e_flags, op->o_tmpmemctx );
1190                 e_flags = NULL;
1191         }
1192
1193         rc = ber_printf( ber, /*{{*/ "}N}" );
1194
1195         if( rc != -1 ) {
1196                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1197         }
1198
1199         if( rc != -1 ) {
1200 #ifdef LDAP_CONNECTIONLESS
1201                 if( op->o_conn && op->o_conn->c_is_udp ) {
1202                         if ( op->o_protocol != LDAP_VERSION2 ) {
1203                                 rc = ber_printf( ber, /*{*/ "N}" );
1204                         }
1205                 } else
1206 #endif
1207                 if ( op->o_res_ber == NULL ) {
1208                         rc = ber_printf( ber, /*{*/ "N}" );
1209                 }
1210         }
1211
1212         if ( rc == -1 ) {
1213                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1214
1215                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1216                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1217                 rc = rs->sr_err;
1218                 goto error_return;
1219         }
1220
1221         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1222                 be_entry_release_rw( op, rs->sr_entry, 0 );
1223                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1224                 rs->sr_entry = NULL;
1225         }
1226
1227         if ( op->o_res_ber == NULL ) {
1228                 bytes = send_ldap_ber( op->o_conn, ber );
1229                 ber_free_buf( ber );
1230
1231                 if ( bytes < 0 ) {
1232                         Debug( LDAP_DEBUG_ANY,
1233                                 "send_search_entry: conn %lu  ber write failed.\n",
1234                                 op->o_connid, 0, 0 );
1235
1236                         rc = LDAP_UNAVAILABLE;
1237                         goto error_return;
1238                 }
1239                 rs->sr_nentries++;
1240
1241                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1242                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1243                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1244                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1245                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1246         }
1247
1248         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1249             op->o_log_prefix, edn, 0, 0, 0 );
1250
1251         Debug( LDAP_DEBUG_TRACE,
1252                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1253
1254         rc = LDAP_SUCCESS;
1255
1256 error_return:;
1257         if ( op->o_callback ) {
1258                 (void)slap_cleanup_play( op, rs );
1259         }
1260
1261         if ( e_flags ) {
1262                 slap_sl_free( e_flags, op->o_tmpmemctx );
1263         }
1264
1265         if ( rs->sr_operational_attrs ) {
1266                 attrs_free( rs->sr_operational_attrs );
1267                 rs->sr_operational_attrs = NULL;
1268         }
1269         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1270
1271         /* FIXME: I think rs->sr_type should be explicitly set to
1272          * REP_SEARCH here. That's what it was when we entered this
1273          * function. send_ldap_error may have changed it, but we
1274          * should set it back so that the cleanup functions know
1275          * what they're doing.
1276          */
1277         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1278                 && rs->sr_entry
1279                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1280         {
1281                 entry_free( rs->sr_entry );
1282                 rs->sr_entry = NULL;
1283                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1284         }
1285
1286         return( rc );
1287 }
1288
1289 int
1290 slap_send_search_reference( Operation *op, SlapReply *rs )
1291 {
1292         BerElementBuffer berbuf;
1293         BerElement      *ber = (BerElement *) &berbuf;
1294         int rc = 0;
1295         int bytes;
1296
1297         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1298         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1299
1300         rs->sr_type = REP_SEARCHREF;
1301         if ( op->o_callback ) {
1302                 rc = slap_response_play( op, rs );
1303                 if ( rc != SLAP_CB_CONTINUE ) {
1304                         goto rel;
1305                 }
1306         }
1307
1308         Debug( LDAP_DEBUG_TRACE,
1309                 "=> send_search_reference: dn=\"%s\"\n",
1310                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1311
1312         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1313                 ad_entry, NULL, ACL_READ, NULL ) )
1314         {
1315                 Debug( LDAP_DEBUG_ACL,
1316                         "send_search_reference: access to entry not allowed\n",
1317                     0, 0, 0 );
1318                 rc = 1;
1319                 goto rel;
1320         }
1321
1322         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1323                 ad_ref, NULL, ACL_READ, NULL ) )
1324         {
1325                 Debug( LDAP_DEBUG_ACL,
1326                         "send_search_reference: access "
1327                         "to reference not allowed\n",
1328                     0, 0, 0 );
1329                 rc = 1;
1330                 goto rel;
1331         }
1332
1333         if( op->o_domain_scope ) {
1334                 Debug( LDAP_DEBUG_ANY,
1335                         "send_search_reference: domainScope control in (%s)\n",
1336                         rs->sr_entry->e_dn, 0, 0 );
1337                 rc = 0;
1338                 goto rel;
1339         }
1340
1341         if( rs->sr_ref == NULL ) {
1342                 Debug( LDAP_DEBUG_ANY,
1343                         "send_search_reference: null ref in (%s)\n",
1344                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1345                 rc = 1;
1346                 goto rel;
1347         }
1348
1349         if( op->o_protocol < LDAP_VERSION3 ) {
1350                 rc = 0;
1351                 /* save the references for the result */
1352                 if( rs->sr_ref[0].bv_val != NULL ) {
1353                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1354                                 rc = LDAP_OTHER;
1355                 }
1356                 goto rel;
1357         }
1358
1359 #ifdef LDAP_CONNECTIONLESS
1360         if( op->o_conn && op->o_conn->c_is_udp ) {
1361                 ber = op->o_res_ber;
1362         } else
1363 #endif
1364         {
1365                 ber_init_w_nullc( ber, LBER_USE_DER );
1366                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1367         }
1368
1369         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1370                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1371
1372         if( rc != -1 ) {
1373                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1374         }
1375
1376         if( rc != -1 ) {
1377                 rc = ber_printf( ber, /*"{"*/ "N}" );
1378         }
1379
1380         if ( rc == -1 ) {
1381                 Debug( LDAP_DEBUG_ANY,
1382                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1383
1384 #ifdef LDAP_CONNECTIONLESS
1385                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1386 #endif
1387                 ber_free_buf( ber );
1388                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1389                 goto rel;
1390         }
1391
1392         rc = 0;
1393         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1394                 be_entry_release_rw( op, rs->sr_entry, 0 );
1395                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1396                 rs->sr_entry = NULL;
1397         }
1398
1399 #ifdef LDAP_CONNECTIONLESS
1400         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1401 #endif
1402         bytes = send_ldap_ber( op->o_conn, ber );
1403         ber_free_buf( ber );
1404
1405         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1406         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1407         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1408         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1409         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1410 #ifdef LDAP_CONNECTIONLESS
1411         }
1412 #endif
1413         if ( rs->sr_ref != NULL ) {
1414                 int     r;
1415
1416                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1417                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1418                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1419                                 0, 0 );
1420                 }
1421
1422         } else {
1423                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1424                         op->o_log_prefix, 0, 0, 0, 0 );
1425         }
1426
1427         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1428
1429 rel:
1430         if ( op->o_callback ) {
1431                 (void)slap_cleanup_play( op, rs );
1432         }
1433
1434         return rc;
1435 }
1436
1437 int
1438 str2result(
1439     char        *s,
1440     int         *code,
1441     char        **matched,
1442     char        **info )
1443 {
1444         int     rc;
1445         char    *c;
1446
1447         *code = LDAP_SUCCESS;
1448         *matched = NULL;
1449         *info = NULL;
1450
1451         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1452                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1453                     s, 0, 0 );
1454
1455                 return( -1 );
1456         }
1457
1458         rc = 0;
1459         while ( (s = strchr( s, '\n' )) != NULL ) {
1460                 *s++ = '\0';
1461                 if ( *s == '\0' ) {
1462                         break;
1463                 }
1464                 if ( (c = strchr( s, ':' )) != NULL ) {
1465                         c++;
1466                 }
1467
1468                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1469                         char    *next = NULL;
1470                         long    retcode;
1471
1472                         if ( c == NULL ) {
1473                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1474                                     s, 0, 0 );
1475                                 rc = -1;
1476                                 continue;
1477                         }
1478
1479                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1480                         if ( c[ 0 ] == '\0' ) {
1481                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1482                                     s, 0, 0 );
1483                                 rc = -1;
1484                                 continue;
1485                         }
1486
1487                         retcode = strtol( c, &next, 10 );
1488                         if ( next == NULL || next == c ) {
1489                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1490                                     s, 0, 0 );
1491                                 rc = -1;
1492                                 continue;
1493                         }
1494
1495                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1496                         if ( next[ 0 ] != '\0' ) {
1497                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1498                                     s, 0, 0 );
1499                                 rc = -1;
1500                                 continue;
1501                         }
1502
1503                         /* FIXME: what if it's larger that max int? */
1504                         *code = (int)retcode;
1505
1506                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1507                         if ( c != NULL ) {
1508                                 *matched = c;
1509                         }
1510                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1511                         if ( c != NULL ) {
1512                                 *info = c;
1513                         }
1514                 } else {
1515                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1516                             s, 0, 0 );
1517
1518                         rc = -1;
1519                 }
1520         }
1521
1522         return( rc );
1523 }
1524
1525 int slap_read_controls(
1526         Operation *op,
1527         SlapReply *rs,
1528         Entry *e,
1529         const struct berval *oid,
1530         LDAPControl **ctrl )
1531 {
1532         int rc;
1533         struct berval bv;
1534         BerElementBuffer berbuf;
1535         BerElement *ber = (BerElement *) &berbuf;
1536         LDAPControl c;
1537         Operation myop;
1538
1539         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1540                 oid->bv_val, e->e_dn, 0 );
1541
1542         rs->sr_entry = e;
1543         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1544                 op->o_preread_attrs : op->o_postread_attrs;
1545
1546         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1547         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1548
1549         ber_init2( ber, &bv, LBER_USE_DER );
1550         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1551
1552         /* create new operation */
1553         myop = *op;
1554         myop.o_bd = NULL;
1555         myop.o_res_ber = ber;
1556         myop.o_callback = NULL;
1557         myop.ors_slimit = 1;
1558
1559         rc = slap_send_search_entry( &myop, rs );
1560         if( rc ) return rc;
1561
1562         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1563
1564         if( rc == LBER_ERROR ) return LDAP_OTHER;
1565
1566         c.ldctl_oid = oid->bv_val;
1567         c.ldctl_iscritical = 0;
1568
1569         if ( *ctrl == NULL ) {
1570                 /* first try */
1571                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1572         } else {
1573                 /* retry: free previous try */
1574                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1575         }
1576
1577         **ctrl = c;
1578         return LDAP_SUCCESS;
1579 }
1580
1581 /* Map API errors to protocol errors... */
1582 int
1583 slap_map_api2result( SlapReply *rs )
1584 {
1585         switch(rs->sr_err) {
1586         case LDAP_SERVER_DOWN:
1587                 return LDAP_UNAVAILABLE;
1588         case LDAP_LOCAL_ERROR:
1589                 return LDAP_OTHER;
1590         case LDAP_ENCODING_ERROR:
1591         case LDAP_DECODING_ERROR:
1592                 return LDAP_PROTOCOL_ERROR;
1593         case LDAP_TIMEOUT:
1594                 return LDAP_UNAVAILABLE;
1595         case LDAP_AUTH_UNKNOWN:
1596                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1597         case LDAP_FILTER_ERROR:
1598                 rs->sr_text = "Filter error";
1599                 return LDAP_OTHER;
1600         case LDAP_USER_CANCELLED:
1601                 rs->sr_text = "User cancelled";
1602                 return LDAP_OTHER;
1603         case LDAP_PARAM_ERROR:
1604                 return LDAP_PROTOCOL_ERROR;
1605         case LDAP_NO_MEMORY:
1606                 return LDAP_OTHER;
1607         case LDAP_CONNECT_ERROR:
1608                 return LDAP_UNAVAILABLE;
1609         case LDAP_NOT_SUPPORTED:
1610                 return LDAP_UNWILLING_TO_PERFORM;
1611         case LDAP_CONTROL_NOT_FOUND:
1612                 return LDAP_PROTOCOL_ERROR;
1613         case LDAP_NO_RESULTS_RETURNED:
1614                 return LDAP_NO_SUCH_OBJECT;
1615         case LDAP_MORE_RESULTS_TO_RETURN:
1616                 rs->sr_text = "More results to return";
1617                 return LDAP_OTHER;
1618         case LDAP_CLIENT_LOOP:
1619         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1620                 return LDAP_LOOP_DETECT;
1621         default:
1622                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1623                 return rs->sr_err;
1624         }
1625 }
1626
1627
1628 slap_mask_t
1629 slap_attr_flags( AttributeName *an )
1630 {
1631         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1632
1633         if ( an == NULL ) {
1634                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1635
1636         } else {
1637                 flags |= an_find( an, &AllOper )
1638                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1639                 flags |= an_find( an, &AllUser )
1640                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1641         }
1642
1643         return flags;
1644 }
1645