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 1998-2010 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 /* SlapReply debugging, prodo-slap.h overrides it in OpenLDAP releases */
 136 #if defined(LDAP_TEST) || (defined(USE_RS_ASSERT) && (USE_RS_ASSERT))
 137 void
 138 (rs_assert_ok)( const SlapReply *rs )
 139 {
 140         const slap_mask_t flags = rs->sr_flags;
 141
 142         if ( flags & REP_ENTRY_MASK ) {
 143                 RS_ASSERT( !(flags & REP_ENTRY_MUSTRELEASE)
 144                         || !(flags & (REP_ENTRY_MASK ^ REP_ENTRY_MUSTRELEASE)) );
 145                 RS_ASSERT( rs->sr_entry != NULL );
 146                 RS_ASSERT( (1 << rs->sr_type) &
 147                         ((1 << REP_SEARCH) | (1 << REP_SEARCHREF) |
 148                          (1 << REP_RESULT) | (1 << REP_GLUE_RESULT)) );
 149         }
 150 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 151         if ( (flags & (REP_MATCHED_MASK | REP_REF_MASK | REP_CTRLS_MASK)) ) {
 152                 RS_ASSERT( !(flags & REP_MATCHED_MASK) || rs->sr_matched );
 153                 RS_ASSERT( !(flags & REP_CTRLS_MASK  ) || rs->sr_ctrls   );
 154                 /* Note: LDAP_REFERRAL + !sr_ref is OK, becomes LDAP_NO_SUCH_OBJECT */
 155         }
 156 #if (USE_RS_ASSERT) > 2
 157         if ( rs->sr_err == LDAP_SUCCESS ) {
 158                 RS_ASSERT( rs->sr_text == NULL );
 159                 RS_ASSERT( rs->sr_matched == NULL );
 160         }
 161 #endif
 162 #endif
 163 }
 164 void
 165 (rs_assert_ready)( const SlapReply *rs )
 166 {
 167         RS_ASSERT( !rs->sr_entry   );
 168 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 169         RS_ASSERT( !rs->sr_text    );
 170         RS_ASSERT( !rs->sr_ref     );
 171         RS_ASSERT( !rs->sr_matched );
 172         RS_ASSERT( !rs->sr_ctrls   );
 173         RS_ASSERT( !rs->sr_flags   );
 174 #if (USE_RS_ASSERT) > 2
 175         RS_ASSERT( rs->sr_err == LDAP_SUCCESS );
 176 #endif
 177 #else
 178         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 179 #endif
 180 }
 181 void
 182 (rs_assert_done)( const SlapReply *rs )
 183 {
 184 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 185         RS_ASSERT( !(rs->sr_flags & ~(REP_ENTRY_MODIFIABLE|REP_NO_OPERATIONALS)) );
 186         rs_assert_ok( rs );
 187 #else
 188         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MUSTFLUSH) );
 189 #endif
 190 }
 191 #endif /* LDAP_TEST || USE_RS_ASSERT */
 192
 193 /* Set rs->sr_entry after obyeing and clearing sr_flags & REP_ENTRY_MASK. */
 194 void
 195 rs_replace_entry( Operation *op, SlapReply *rs, slap_overinst *on, Entry *e )
 196 {
 197         slap_mask_t e_flags = rs->sr_flags & REP_ENTRY_MUSTFLUSH;
 198
 199         if ( e_flags && rs->sr_entry != NULL ) {
 200                 RS_ASSERT( e_flags != REP_ENTRY_MUSTFLUSH );
 201                 if ( !(e_flags & REP_ENTRY_MUSTRELEASE) ) {
 202                         entry_free( rs->sr_entry );
 203                 } else if ( on != NULL ) {
 204                         overlay_entry_release_ov( op, rs->sr_entry, 0, on );
 205                 } else {
 206                         be_entry_release_rw( op, rs->sr_entry, 0 );
 207                 }
 208         }
 209         rs->sr_flags &= ~REP_ENTRY_MASK;
 210         rs->sr_entry = e;
 211 }
 212
 213 /*
 214  * Ensure rs->sr_entry is modifiable, by duplicating it if necessary.
 215  * Obey sr_flags.  Set REP_ENTRY_<MODIFIABLE, and MUSTBEFREED if duplicated>.
 216  * Return nonzero if rs->sr_entry was replaced.
 217  */
 218 int
 219 rs_ensure_entry_modifiable( Operation *op, SlapReply *rs, slap_overinst *on )
 220 {
 221         if ( rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
 222                 RS_ASSERT((rs->sr_flags & REP_ENTRY_MUSTFLUSH)==REP_ENTRY_MUSTBEFREED);
 223                 return 0;
 224         }
 225         rs_replace_entry( op, rs, on, entry_dup( rs->sr_entry ));
 226         rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED;
 227         return 1;
 228 }
 229
 230 static long send_ldap_ber(
 231         Operation *op,
 232         BerElement *ber )
 233 {
 234         Connection *conn = op->o_conn;
 235         ber_len_t bytes;
 236         long ret = 0;
 237
 238         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 239
 240         /* write only one pdu at a time - wait til it's our turn */
 241         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 242         if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
 243                 conn->c_writers < 0 ) {
 244                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 245                 return 0;
 246         }
 247
 248         conn->c_writers++;
 249
 250         while ( conn->c_writers > 0 && conn->c_writing ) {
 251                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 252         }
 253
 254         /* connection was closed under us */
 255         if ( conn->c_writers < 0 ) {
 256                 /* we're the last waiter, let the closer continue */
 257                 if ( conn->c_writers == -1 )
 258                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 259                 conn->c_writers++;
 260                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 261                 return 0;
 262         }
 263
 264         /* Our turn */
 265         conn->c_writing = 1;
 266
 267         /* write the pdu */
 268         while( 1 ) {
 269                 int err;
 270
 271                 /* lock the connection */
 272                 if ( ldap_pvt_thread_mutex_trylock( &conn->c_mutex )) {
 273                         if ( !connection_valid(conn)) {
 274                                 ret = 0;
 275                                 break;
 276                         }
 277                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 278                         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 279                         if ( conn->c_writers < 0 ) {
 280                                 ret = 0;
 281                                 break;
 282                         }
 283                         continue;
 284                 }
 285
 286                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 287                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 288                         ret = bytes;
 289                         break;
 290                 }
 291
 292                 err = sock_errno();
 293
 294                 /*
 295                  * we got an error.  if it's ewouldblock, we need to
 296                  * wait on the socket being writable.  otherwise, figure
 297                  * it's a hard error and return.
 298                  */
 299
 300                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 301                     err, sock_errstr(err), 0 );
 302
 303                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 304                         conn->c_writers--;
 305                         conn->c_writing = 0;
 306                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 307                         connection_closing( conn, "connection lost on write" );
 308
 309                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 310                         return -1;
 311                 }
 312
 313                 /* wait for socket to be write-ready */
 314                 ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
 315                 conn->c_writewaiter = 1;
 316                 slapd_set_write( conn->c_sd, 2 );
 317
 318                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 319                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 320                 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
 321                 conn->c_writewaiter = 0;
 322                 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
 323                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 324                 if ( conn->c_writers < 0 ) {
 325                         ret = 0;
 326                         break;
 327                 }
 328         }
 329
 330         conn->c_writing = 0;
 331         if ( conn->c_writers < 0 ) {
 332                 conn->c_writers++;
 333                 if ( !conn->c_writers )
 334                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 335         } else {
 336                 conn->c_writers--;
 337                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 338         }
 339         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 340
 341         return ret;
 342 }
 343
 344 static int
 345 send_ldap_control( BerElement *ber, LDAPControl *c )
 346 {
 347         int rc;
 348
 349         assert( c != NULL );
 350
 351         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 352
 353         if( c->ldctl_iscritical ) {
 354                 rc = ber_printf( ber, "b",
 355                         (ber_int_t) c->ldctl_iscritical ) ;
 356                 if( rc == -1 ) return rc;
 357         }
 358
 359         if( c->ldctl_value.bv_val != NULL ) {
 360                 rc = ber_printf( ber, "O", &c->ldctl_value );
 361                 if( rc == -1 ) return rc;
 362         }
 363
 364         rc = ber_printf( ber, /*{*/"N}" );
 365         if( rc == -1 ) return rc;
 366
 367         return 0;
 368 }
 369
 370 static int
 371 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 372 {
 373         int rc;
 374
 375         if( c == NULL )
 376                 return 0;
 377
 378         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 379         if( rc == -1 ) return rc;
 380
 381         for( ; *c != NULL; c++) {
 382                 rc = send_ldap_control( ber, *c );
 383                 if( rc == -1 ) return rc;
 384         }
 385
 386 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 387         /* this is a hack to avoid having to modify op->s_ctrls */
 388         if( o->o_sortedresults ) {
 389                 BerElementBuffer berbuf;
 390                 BerElement *sber = (BerElement *) &berbuf;
 391                 LDAPControl sorted;
 392                 BER_BVZERO( &sorted.ldctl_value );
 393                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 394                 sorted.ldctl_iscritical = 0;
 395
 396                 ber_init2( sber, NULL, LBER_USE_DER );
 397
 398                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 399
 400                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 401                         return -1;
 402                 }
 403
 404                 (void) ber_free_buf( sber );
 405
 406                 rc = send_ldap_control( ber, &sorted );
 407                 if( rc == -1 ) return rc;
 408         }
 409 #endif
 410
 411         rc = ber_printf( ber, /*{*/"N}" );
 412
 413         return rc;
 414 }
 415
 416 /*
 417  * slap_response_play()
 418  *
 419  * plays the callback list; rationale: a callback can
 420  *   - remove itself from the list, by setting op->o_callback = NULL;
 421  *     malloc()'ed callbacks should free themselves from inside the
 422  *     sc_response() function.
 423  *   - replace itself with another (list of) callback(s), by setting
 424  *     op->o_callback = a new (list of) callback(s); in this case, it
 425  *     is the callback's responsibility to to append existing subsequent
 426  *     callbacks to the end of the list that is passed to the sc_response()
 427  *     function.
 428  *   - modify the list of subsequent callbacks by modifying the value
 429  *     of the sc_next field from inside the sc_response() function; this
 430  *     case does not require any handling from inside slap_response_play()
 431  *
 432  * To stop execution of the playlist, the sc_response() function must return
 433  * a value different from SLAP_SC_CONTINUE.
 434  *
 435  * The same applies to slap_cleanup_play(); only, there is no means to stop
 436  * execution of the playlist, since all cleanup functions must be called.
 437  */
 438 static int
 439 slap_response_play(
 440         Operation *op,
 441         SlapReply *rs )
 442 {
 443         int rc;
 444
 445         slap_callback   *sc = op->o_callback, **scp;
 446
 447         rc = SLAP_CB_CONTINUE;
 448         for ( scp = &sc; *scp; ) {
 449                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 450
 451                 op->o_callback = *scp;
 452                 if ( op->o_callback->sc_response ) {
 453                         rc = op->o_callback->sc_response( op, rs );
 454                         if ( op->o_callback == NULL ) {
 455                                 /* the callback has been removed;
 456                                  * repair the list */
 457                                 *scp = sc_next;
 458                                 sc_nextp = scp;
 459
 460                         } else if ( op->o_callback != *scp ) {
 461                                 /* a new callback has been inserted
 462                                  * in place of the existing one; repair the list */
 463                                 *scp = op->o_callback;
 464                                 sc_nextp = scp;
 465                         }
 466                         if ( rc != SLAP_CB_CONTINUE ) break;
 467                 }
 468                 scp = sc_nextp;
 469         }
 470
 471         op->o_callback = sc;
 472         return rc;
 473 }
 474
 475 static int
 476 slap_cleanup_play(
 477         Operation *op,
 478         SlapReply *rs )
 479 {
 480         slap_callback   *sc = op->o_callback, **scp;
 481
 482         for ( scp = &sc; *scp; ) {
 483                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 484
 485                 op->o_callback = *scp;
 486                 if ( op->o_callback->sc_cleanup ) {
 487                         (void)op->o_callback->sc_cleanup( op, rs );
 488                         if ( op->o_callback == NULL ) {
 489                                 /* the callback has been removed;
 490                                  * repair the list */
 491                                 *scp = sc_next;
 492                                 sc_nextp = scp;
 493
 494                         } else if ( op->o_callback != *scp ) {
 495                                 /* a new callback has been inserted
 496                                  * after the existing one; repair the list */
 497                                 /* a new callback has been inserted
 498                                  * in place of the existing one; repair the list */
 499                                 *scp = op->o_callback;
 500                                 sc_nextp = scp;
 501                         }
 502                         /* don't care about the result; do all cleanup */
 503                 }
 504                 scp = sc_nextp;
 505         }
 506
 507         op->o_callback = sc;
 508         return LDAP_SUCCESS;
 509 }
 510
 511 static int
 512 send_ldap_response(
 513         Operation *op,
 514         SlapReply *rs )
 515 {
 516         BerElementBuffer berbuf;
 517         BerElement      *ber = (BerElement *) &berbuf;
 518         int             rc = LDAP_SUCCESS;
 519         long    bytes;
 520
 521         if (( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) && !op->o_cancel ) {
 522                 rc = SLAPD_ABANDON;
 523                 goto clean2;
 524         }
 525
 526         if ( op->o_callback ) {
 527                 rc = slap_response_play( op, rs );
 528                 if ( rc != SLAP_CB_CONTINUE ) {
 529                         goto clean2;
 530                 }
 531         }
 532
 533 #ifdef LDAP_CONNECTIONLESS
 534         if (op->o_conn && op->o_conn->c_is_udp)
 535                 ber = op->o_res_ber;
 536         else
 537 #endif
 538         {
 539                 ber_init_w_nullc( ber, LBER_USE_DER );
 540                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 541         }
 542
 543         rc = rs->sr_err;
 544         if ( rc == SLAPD_ABANDON && op->o_cancel )
 545                 rc = LDAP_CANCELLED;
 546
 547         Debug( LDAP_DEBUG_TRACE,
 548                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 549                 rs->sr_msgid, rs->sr_tag, rc );
 550
 551         if( rs->sr_ref ) {
 552                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 553                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 554                         NULL, NULL );
 555         }
 556
 557 #ifdef LDAP_CONNECTIONLESS
 558         if (op->o_conn && op->o_conn->c_is_udp &&
 559                 op->o_protocol == LDAP_VERSION2 )
 560         {
 561                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 562                         rs->sr_tag, rc,
 563                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 564                 rs->sr_text == NULL ? "" : rs->sr_text );
 565         } else
 566 #endif
 567         if ( rs->sr_type == REP_INTERMEDIATE ) {
 568             rc = ber_printf( ber, "{it{" /*"}}"*/,
 569                         rs->sr_msgid, rs->sr_tag );
 570
 571         } else {
 572             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 573                 rs->sr_msgid, rs->sr_tag, rc,
 574                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 575                 rs->sr_text == NULL ? "" : rs->sr_text );
 576         }
 577
 578         if( rc != -1 ) {
 579                 if ( rs->sr_ref != NULL ) {
 580                         assert( rs->sr_err == LDAP_REFERRAL );
 581                         rc = ber_printf( ber, "t{W}",
 582                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 583                 } else {
 584                         assert( rs->sr_err != LDAP_REFERRAL );
 585                 }
 586         }
 587
 588         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 589                 rc = ber_printf( ber, "tO",
 590                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 591         }
 592
 593         if( rc != -1 &&
 594                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 595         {
 596                 if ( rs->sr_rspoid != NULL ) {
 597                         rc = ber_printf( ber, "ts",
 598                                 rs->sr_type == REP_EXTENDED
 599                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 600                                 rs->sr_rspoid );
 601                 }
 602                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 603                         rc = ber_printf( ber, "tO",
 604                                 rs->sr_type == REP_EXTENDED
 605                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 606                                 rs->sr_rspdata );
 607                 }
 608         }
 609
 610         if( rc != -1 ) {
 611                 rc = ber_printf( ber, /*"{"*/ "N}" );
 612         }
 613
 614         if( rc != -1 ) {
 615                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 616         }
 617
 618         if( rc != -1 ) {
 619                 rc = ber_printf( ber, /*"{"*/ "N}" );
 620         }
 621
 622 #ifdef LDAP_CONNECTIONLESS
 623         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 624                 && rc != -1 )
 625         {
 626                 rc = ber_printf( ber, /*"{"*/ "N}" );
 627         }
 628 #endif
 629
 630         if ( rc == -1 ) {
 631                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 632
 633 #ifdef LDAP_CONNECTIONLESS
 634                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 635 #endif
 636                 {
 637                         ber_free_buf( ber );
 638                 }
 639                 goto cleanup;
 640         }
 641
 642         /* send BER */
 643         bytes = send_ldap_ber( op, ber );
 644 #ifdef LDAP_CONNECTIONLESS
 645         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 646 #endif
 647         {
 648                 ber_free_buf( ber );
 649         }
 650
 651         if ( bytes < 0 ) {
 652                 Debug( LDAP_DEBUG_ANY,
 653                         "send_ldap_response: ber write failed\n",
 654                         0, 0, 0 );
 655
 656                 goto cleanup;
 657         }
 658
 659         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 660         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 661         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 662         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 663
 664 cleanup:;
 665         /* Tell caller that we did this for real, as opposed to being
 666          * overridden by a callback
 667          */
 668         rc = SLAP_CB_CONTINUE;
 669
 670 clean2:;
 671         if ( op->o_callback ) {
 672                 (void)slap_cleanup_play( op, rs );
 673         }
 674
 675         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 676                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 677                 if ( rs->sr_matched ) {
 678                         free( (char *)rs->sr_matched );
 679                         rs->sr_matched = NULL;
 680                 }
 681         }
 682
 683         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 684                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 685                 if ( rs->sr_ref ) {
 686                         ber_bvarray_free( rs->sr_ref );
 687                         rs->sr_ref = NULL;
 688                 }
 689         }
 690
 691         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 692                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 693                 if ( rs->sr_ctrls ) {
 694                         slap_free_ctrls( op, rs->sr_ctrls );
 695                         rs->sr_ctrls = NULL;
 696                 }
 697         }
 698
 699         return rc;
 700 }
 701
 702
 703 void
 704 send_ldap_disconnect( Operation *op, SlapReply *rs )
 705 {
 706 #define LDAP_UNSOLICITED_ERROR(e) \
 707         (  (e) == LDAP_PROTOCOL_ERROR \
 708         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 709         || (e) == LDAP_UNAVAILABLE )
 710
 711         Debug( LDAP_DEBUG_TRACE,
 712                 "send_ldap_disconnect %d:%s\n",
 713                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 714         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 715
 716         rs->sr_type = REP_EXTENDED;
 717         rs->sr_rspdata = NULL;
 718
 719         if ( op->o_protocol < LDAP_VERSION3 ) {
 720                 rs->sr_rspoid = NULL;
 721                 rs->sr_tag = slap_req2res( op->o_tag );
 722                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 723
 724         } else {
 725                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 726                 rs->sr_tag = LDAP_RES_EXTENDED;
 727                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 728         }
 729
 730         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 731                 Statslog( LDAP_DEBUG_STATS,
 732                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 733                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 734                         rs->sr_text ? rs->sr_text : "", 0 );
 735         }
 736 }
 737
 738 void
 739 slap_send_ldap_result( Operation *op, SlapReply *rs )
 740 {
 741         char *tmp = NULL;
 742         const char *otext = rs->sr_text;
 743         BerVarray oref = rs->sr_ref;
 744
 745         rs->sr_type = REP_RESULT;
 746
 747         /* Propagate Abandons so that cleanup callbacks can be processed */
 748         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 749                 goto abandon;
 750
 751         Debug( LDAP_DEBUG_TRACE,
 752                 "send_ldap_result: %s p=%d\n",
 753                 op->o_log_prefix, op->o_protocol, 0 );
 754         Debug( LDAP_DEBUG_ARGS,
 755                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 756                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 757                 rs->sr_text ? rs->sr_text : "" );
 758         if( rs->sr_ref ) {
 759                 Debug( LDAP_DEBUG_ARGS,
 760                         "send_ldap_result: referral=\"%s\"\n",
 761                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 762                         NULL, NULL );
 763         }
 764         assert( !LDAP_API_ERROR( rs->sr_err ) );
 765         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 766
 767         if ( rs->sr_err == LDAP_REFERRAL ) {
 768                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 769
 770                 if( rs->sr_ref == NULL ) {
 771                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 772                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 773                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 774                 }
 775         }
 776
 777         if ( op->o_protocol < LDAP_VERSION3 ) {
 778                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 779                 rs->sr_text = tmp;
 780                 rs->sr_ref = NULL;
 781         }
 782
 783 abandon:
 784         rs->sr_tag = slap_req2res( op->o_tag );
 785         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 786
 787         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 788                 if ( rs->sr_ref == NULL ) {
 789                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 790                         ber_bvarray_free( oref );
 791                 }
 792                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 793         }
 794
 795         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 796                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 797                         Statslog( LDAP_DEBUG_STATS,
 798                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 799                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 800                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 801                 } else {
 802                         Statslog( LDAP_DEBUG_STATS,
 803                                 "%s RESULT tag=%lu err=%d text=%s\n",
 804                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 805                                 rs->sr_text ? rs->sr_text : "", 0 );
 806                 }
 807         }
 808
 809         if( tmp != NULL ) ch_free(tmp);
 810         rs->sr_text = otext;
 811         rs->sr_ref = oref;
 812 }
 813
 814 void
 815 send_ldap_sasl( Operation *op, SlapReply *rs )
 816 {
 817         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 818                 rs->sr_err,
 819                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 820
 821         rs->sr_type = REP_SASL;
 822         rs->sr_tag = slap_req2res( op->o_tag );
 823         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 824
 825         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 826                 Statslog( LDAP_DEBUG_STATS,
 827                         "%s RESULT tag=%lu err=%d text=%s\n",
 828                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 829                         rs->sr_text ? rs->sr_text : "", 0 );
 830         }
 831 }
 832
 833 void
 834 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 835 {
 836         Debug( LDAP_DEBUG_TRACE,
 837                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 838                 rs->sr_err,
 839                 rs->sr_rspoid ? rs->sr_rspoid : "",
 840                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 841
 842         rs->sr_type = REP_EXTENDED;
 843         rs->sr_tag = slap_req2res( op->o_tag );
 844         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 845
 846         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 847                 Statslog( LDAP_DEBUG_STATS,
 848                         "%s RESULT oid=%s err=%d text=%s\n",
 849                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 850                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 851         }
 852 }
 853
 854 void
 855 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 856 {
 857         Debug( LDAP_DEBUG_TRACE,
 858                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 859                 rs->sr_err,
 860                 rs->sr_rspoid ? rs->sr_rspoid : "",
 861                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 862
 863         rs->sr_type = REP_INTERMEDIATE;
 864         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 865         rs->sr_msgid = op->o_msgid;
 866         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 867                 Statslog( LDAP_DEBUG_STATS2,
 868                         "%s INTERM oid=%s\n",
 869                         op->o_log_prefix,
 870                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 871         }
 872 }
 873
 874 /*
 875  * returns:
 876  *
 877  * LDAP_SUCCESS                 entry sent
 878  * LDAP_OTHER                   entry not sent (other)
 879  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 880  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 881  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 882  */
 883
 884 int
 885 slap_send_search_entry( Operation *op, SlapReply *rs )
 886 {
 887         BerElementBuffer berbuf;
 888         BerElement      *ber = (BerElement *) &berbuf;
 889         Attribute       *a;
 890         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 891         int             userattrs;
 892         AccessControlState acl_state = ACL_STATE_INIT;
 893         int                      attrsonly;
 894         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 895
 896         /* a_flags: array of flags telling if the i-th element will be
 897          *          returned or filtered out
 898          * e_flags: array of a_flags
 899          */
 900         char **e_flags = NULL;
 901
 902         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 903                 return LDAP_SIZELIMIT_EXCEEDED;
 904         }
 905
 906         /* Every 64 entries, check for thread pool pause */
 907         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 908                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 909         {
 910                 return LDAP_BUSY;
 911         }
 912
 913         rs->sr_type = REP_SEARCH;
 914
 915         /* eventually will loop through generated operational attribute types
 916          * currently implemented types include:
 917          *      entryDN, subschemaSubentry, and hasSubordinates */
 918         /* NOTE: moved before overlays callback circling because
 919          * they may modify entry and other stuff in rs */
 920         /* check for special all operational attributes ("+") type */
 921         /* FIXME: maybe we could set this flag at the operation level;
 922          * however, in principle the caller of send_search_entry() may
 923          * change the attribute list at each call */
 924         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 925
 926         rc = backend_operational( op, rs );
 927         if ( rc ) {
 928                 goto error_return;
 929         }
 930
 931         if ( op->o_callback ) {
 932                 rc = slap_response_play( op, rs );
 933                 if ( rc != SLAP_CB_CONTINUE ) {
 934                         goto error_return;
 935                 }
 936         }
 937
 938         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 939                 op->o_connid, rs->sr_entry->e_name.bv_val,
 940                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 941
 942         attrsonly = op->ors_attrsonly;
 943
 944         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 945                 Debug( LDAP_DEBUG_ACL,
 946                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 947                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 948
 949                 rc = LDAP_INSUFFICIENT_ACCESS;
 950                 goto error_return;
 951         }
 952
 953         if ( op->o_res_ber ) {
 954                 /* read back control or LDAP_CONNECTIONLESS */
 955             ber = op->o_res_ber;
 956         } else {
 957                 struct berval   bv;
 958
 959                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 960                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 961
 962                 ber_init2( ber, &bv, LBER_USE_DER );
 963                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 964         }
 965
 966 #ifdef LDAP_CONNECTIONLESS
 967         if ( op->o_conn && op->o_conn->c_is_udp ) {
 968                 /* CONNECTIONLESS */
 969                 if ( op->o_protocol == LDAP_VERSION2 ) {
 970                 rc = ber_printf(ber, "t{O{" /*}}*/,
 971                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 972                 } else {
 973                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 974                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 975                 }
 976         } else
 977 #endif
 978         if ( op->o_res_ber ) {
 979                 /* read back control */
 980             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 981         } else {
 982             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 983                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 984         }
 985
 986         if ( rc == -1 ) {
 987                 Debug( LDAP_DEBUG_ANY,
 988                         "send_search_entry: conn %lu  ber_printf failed\n",
 989                         op->o_connid, 0, 0 );
 990
 991                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 992                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 993                 rc = rs->sr_err;
 994                 goto error_return;
 995         }
 996
 997         /* check for special all user attributes ("*") type */
 998         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 999
1000         /* create an array of arrays of flags. Each flag corresponds
1001          * to particular value of attribute and equals 1 if value matches
1002          * to ValuesReturnFilter or 0 if not
1003          */
1004         if ( op->o_vrFilter != NULL ) {
1005                 int     k = 0;
1006                 size_t  size;
1007
1008                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1009                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1010                 }
1011
1012                 size = i * sizeof(char *) + k;
1013                 if ( size > 0 ) {
1014                         char    *a_flags;
1015                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1016                         if( e_flags == NULL ) {
1017                         Debug( LDAP_DEBUG_ANY,
1018                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1019                                         op->o_connid, 0, 0 );
1020                                 ber_free( ber, 1 );
1021
1022                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
1023                                 goto error_return;
1024                         }
1025                         a_flags = (char *)(e_flags + i);
1026                         memset( a_flags, 0, k );
1027                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1028                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1029                                 e_flags[i] = a_flags;
1030                                 a_flags += j;
1031                         }
1032
1033                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1034                         if ( rc == -1 ) {
1035                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1036                                         "conn %lu matched values filtering failed\n",
1037                                         op->o_connid, 0, 0 );
1038                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1039                                 send_ldap_error( op, rs, LDAP_OTHER,
1040                                         "matched values filtering error" );
1041                                 rc = rs->sr_err;
1042                                 goto error_return;
1043                         }
1044                 }
1045         }
1046
1047         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1048                 AttributeDescription *desc = a->a_desc;
1049                 int finish = 0;
1050
1051                 if ( rs->sr_attrs == NULL ) {
1052                         /* all user attrs request, skip operational attributes */
1053                         if( is_at_operational( desc->ad_type ) ) {
1054                                 continue;
1055                         }
1056
1057                 } else {
1058                         /* specific attrs requested */
1059                         if ( is_at_operational( desc->ad_type ) ) {
1060                                 /* if not explicitly requested */
1061                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1062                                         /* if not all op attrs requested, skip */
1063                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1064                                                 continue;
1065                                         /* if DSA-specific and replicating, skip */
1066                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1067                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1068                                                 continue;
1069                                 }
1070                         } else {
1071                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1072                                         continue;
1073                                 }
1074                         }
1075                 }
1076
1077                 if ( attrsonly ) {
1078                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1079                                 ACL_READ, &acl_state ) )
1080                         {
1081                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1082                                         "conn %lu access to attribute %s not allowed\n",
1083                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1084                                 continue;
1085                         }
1086
1087                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1088                                 Debug( LDAP_DEBUG_ANY,
1089                                         "send_search_entry: conn %lu  ber_printf failed\n",
1090                                         op->o_connid, 0, 0 );
1091
1092                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1093                                 send_ldap_error( op, rs, LDAP_OTHER,
1094                                         "encoding description error");
1095                                 rc = rs->sr_err;
1096                                 goto error_return;
1097                         }
1098                         finish = 1;
1099
1100                 } else {
1101                         int first = 1;
1102                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1103                                 if ( ! access_allowed( op, rs->sr_entry,
1104                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1105                                 {
1106                                         Debug( LDAP_DEBUG_ACL,
1107                                                 "send_search_entry: conn %lu "
1108                                                 "access to attribute %s, value #%d not allowed\n",
1109                                                 op->o_connid, desc->ad_cname.bv_val, i );
1110
1111                                         continue;
1112                                 }
1113
1114                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1115                                         continue;
1116                                 }
1117
1118                                 if ( first ) {
1119                                         first = 0;
1120                                         finish = 1;
1121                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1122                                                 Debug( LDAP_DEBUG_ANY,
1123                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1124                                                         op->o_connid, 0, 0 );
1125
1126                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1127                                                 send_ldap_error( op, rs, LDAP_OTHER,
1128                                                         "encoding description error");
1129                                                 rc = rs->sr_err;
1130                                                 goto error_return;
1131                                         }
1132                                 }
1133                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1134                                         Debug( LDAP_DEBUG_ANY,
1135                                                 "send_search_entry: conn %lu  "
1136                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1137
1138                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1139                                         send_ldap_error( op, rs, LDAP_OTHER,
1140                                                 "encoding values error" );
1141                                         rc = rs->sr_err;
1142                                         goto error_return;
1143                                 }
1144                         }
1145                 }
1146
1147                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1148                         Debug( LDAP_DEBUG_ANY,
1149                                 "send_search_entry: conn %lu ber_printf failed\n",
1150                                 op->o_connid, 0, 0 );
1151
1152                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1153                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1154                         rc = rs->sr_err;
1155                         goto error_return;
1156                 }
1157         }
1158
1159         /* NOTE: moved before overlays callback circling because
1160          * they may modify entry and other stuff in rs */
1161         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1162                 int     k = 0;
1163                 size_t  size;
1164
1165                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1166                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1167                 }
1168
1169                 size = i * sizeof(char *) + k;
1170                 if ( size > 0 ) {
1171                         char    *a_flags, **tmp;
1172
1173                         /*
1174                          * Reuse previous memory - we likely need less space
1175                          * for operational attributes
1176                          */
1177                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1178                                 op->o_tmpmemctx );
1179                         if ( tmp == NULL ) {
1180                                 Debug( LDAP_DEBUG_ANY,
1181                                         "send_search_entry: conn %lu "
1182                                         "not enough memory "
1183                                         "for matched values filtering\n",
1184                                         op->o_connid, 0, 0 );
1185                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1186                                 send_ldap_error( op, rs, LDAP_OTHER,
1187                                         "not enough memory for matched values filtering" );
1188                                 goto error_return;
1189                         }
1190                         e_flags = tmp;
1191                         a_flags = (char *)(e_flags + i);
1192                         memset( a_flags, 0, k );
1193                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1194                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1195                                 e_flags[i] = a_flags;
1196                                 a_flags += j;
1197                         }
1198                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1199
1200                         if ( rc == -1 ) {
1201                                 Debug( LDAP_DEBUG_ANY,
1202                                         "send_search_entry: conn %lu "
1203                                         "matched values filtering failed\n",
1204                                         op->o_connid, 0, 0);
1205                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1206                                 send_ldap_error( op, rs, LDAP_OTHER,
1207                                         "matched values filtering error" );
1208                                 rc = rs->sr_err;
1209                                 goto error_return;
1210                         }
1211                 }
1212         }
1213
1214         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1215                 AttributeDescription *desc = a->a_desc;
1216
1217                 if ( rs->sr_attrs == NULL ) {
1218                         /* all user attrs request, skip operational attributes */
1219                         if( is_at_operational( desc->ad_type ) ) {
1220                                 continue;
1221                         }
1222
1223                 } else {
1224                         /* specific attrs requested */
1225                         if( is_at_operational( desc->ad_type ) ) {
1226                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1227                                         !ad_inlist( desc, rs->sr_attrs ) )
1228                                 {
1229                                         continue;
1230                                 }
1231                         } else {
1232                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1233                                         continue;
1234                                 }
1235                         }
1236                 }
1237
1238                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1239                         ACL_READ, &acl_state ) )
1240                 {
1241                         Debug( LDAP_DEBUG_ACL,
1242                                 "send_search_entry: conn %lu "
1243                                 "access to attribute %s not allowed\n",
1244                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1245
1246                         continue;
1247                 }
1248
1249                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1250                 if ( rc == -1 ) {
1251                         Debug( LDAP_DEBUG_ANY,
1252                                 "send_search_entry: conn %lu  "
1253                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1254
1255                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1256                         send_ldap_error( op, rs, LDAP_OTHER,
1257                                 "encoding description error" );
1258                         rc = rs->sr_err;
1259                         goto error_return;
1260                 }
1261
1262                 if ( ! attrsonly ) {
1263                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1264                                 if ( ! access_allowed( op, rs->sr_entry,
1265                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1266                                 {
1267                                         Debug( LDAP_DEBUG_ACL,
1268                                                 "send_search_entry: conn %lu "
1269                                                 "access to %s, value %d not allowed\n",
1270                                                 op->o_connid, desc->ad_cname.bv_val, i );
1271
1272                                         continue;
1273                                 }
1274
1275                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1276                                         continue;
1277                                 }
1278
1279                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1280                                         Debug( LDAP_DEBUG_ANY,
1281                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1282                                                 op->o_connid, 0, 0 );
1283
1284                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1285                                         send_ldap_error( op, rs, LDAP_OTHER,
1286                                                 "encoding values error" );
1287                                         rc = rs->sr_err;
1288                                         goto error_return;
1289                                 }
1290                         }
1291                 }
1292
1293                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1294                         Debug( LDAP_DEBUG_ANY,
1295                                 "send_search_entry: conn %lu  ber_printf failed\n",
1296                                 op->o_connid, 0, 0 );
1297
1298                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1299                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1300                         rc = rs->sr_err;
1301                         goto error_return;
1302                 }
1303         }
1304
1305         /* free e_flags */
1306         if ( e_flags ) {
1307                 slap_sl_free( e_flags, op->o_tmpmemctx );
1308                 e_flags = NULL;
1309         }
1310
1311         rc = ber_printf( ber, /*{{*/ "}N}" );
1312
1313         if( rc != -1 ) {
1314                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1315         }
1316
1317         if( rc != -1 ) {
1318 #ifdef LDAP_CONNECTIONLESS
1319                 if( op->o_conn && op->o_conn->c_is_udp ) {
1320                         if ( op->o_protocol != LDAP_VERSION2 ) {
1321                                 rc = ber_printf( ber, /*{*/ "N}" );
1322                         }
1323                 } else
1324 #endif
1325                 if ( op->o_res_ber == NULL ) {
1326                         rc = ber_printf( ber, /*{*/ "N}" );
1327                 }
1328         }
1329
1330         if ( rc == -1 ) {
1331                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1332
1333                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1334                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1335                 rc = rs->sr_err;
1336                 goto error_return;
1337         }
1338
1339         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1340             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1341
1342         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1343                 be_entry_release_rw( op, rs->sr_entry, 0 );
1344                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1345                 rs->sr_entry = NULL;
1346         }
1347
1348         if ( op->o_res_ber == NULL ) {
1349                 bytes = send_ldap_ber( op, ber );
1350                 ber_free_buf( ber );
1351
1352                 if ( bytes < 0 ) {
1353                         Debug( LDAP_DEBUG_ANY,
1354                                 "send_search_entry: conn %lu  ber write failed.\n",
1355                                 op->o_connid, 0, 0 );
1356
1357                         rc = LDAP_UNAVAILABLE;
1358                         goto error_return;
1359                 }
1360                 rs->sr_nentries++;
1361
1362                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1363                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1364                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1365                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1366                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1367         }
1368
1369         Debug( LDAP_DEBUG_TRACE,
1370                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1371
1372         rc = LDAP_SUCCESS;
1373
1374 error_return:;
1375         if ( op->o_callback ) {
1376                 (void)slap_cleanup_play( op, rs );
1377         }
1378
1379         if ( e_flags ) {
1380                 slap_sl_free( e_flags, op->o_tmpmemctx );
1381         }
1382
1383         if ( rs->sr_operational_attrs ) {
1384                 attrs_free( rs->sr_operational_attrs );
1385                 rs->sr_operational_attrs = NULL;
1386         }
1387         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1388
1389         /* FIXME: I think rs->sr_type should be explicitly set to
1390          * REP_SEARCH here. That's what it was when we entered this
1391          * function. send_ldap_error may have changed it, but we
1392          * should set it back so that the cleanup functions know
1393          * what they're doing.
1394          */
1395         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1396                 && rs->sr_entry
1397                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1398         {
1399                 entry_free( rs->sr_entry );
1400                 rs->sr_entry = NULL;
1401                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1402         }
1403
1404         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1405                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1406                 if ( rs->sr_ctrls ) {
1407                         slap_free_ctrls( op, rs->sr_ctrls );
1408                         rs->sr_ctrls = NULL;
1409                 }
1410         }
1411
1412         return( rc );
1413 }
1414
1415 int
1416 slap_send_search_reference( Operation *op, SlapReply *rs )
1417 {
1418         BerElementBuffer berbuf;
1419         BerElement      *ber = (BerElement *) &berbuf;
1420         int rc = 0;
1421         int bytes;
1422         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1423
1424         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1425         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1426
1427         rs->sr_type = REP_SEARCHREF;
1428         if ( op->o_callback ) {
1429                 rc = slap_response_play( op, rs );
1430                 if ( rc != SLAP_CB_CONTINUE ) {
1431                         goto rel;
1432                 }
1433         }
1434
1435         Debug( LDAP_DEBUG_TRACE,
1436                 "=> send_search_reference: dn=\"%s\"\n",
1437                 edn, 0, 0 );
1438
1439         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1440                 ad_entry, NULL, ACL_READ, NULL ) )
1441         {
1442                 Debug( LDAP_DEBUG_ACL,
1443                         "send_search_reference: access to entry not allowed\n",
1444                     0, 0, 0 );
1445                 rc = 1;
1446                 goto rel;
1447         }
1448
1449         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1450                 ad_ref, NULL, ACL_READ, NULL ) )
1451         {
1452                 Debug( LDAP_DEBUG_ACL,
1453                         "send_search_reference: access "
1454                         "to reference not allowed\n",
1455                     0, 0, 0 );
1456                 rc = 1;
1457                 goto rel;
1458         }
1459
1460         if( op->o_domain_scope ) {
1461                 Debug( LDAP_DEBUG_ANY,
1462                         "send_search_reference: domainScope control in (%s)\n",
1463                         edn, 0, 0 );
1464                 rc = 0;
1465                 goto rel;
1466         }
1467
1468         if( rs->sr_ref == NULL ) {
1469                 Debug( LDAP_DEBUG_ANY,
1470                         "send_search_reference: null ref in (%s)\n",
1471                         edn, 0, 0 );
1472                 rc = 1;
1473                 goto rel;
1474         }
1475
1476         if( op->o_protocol < LDAP_VERSION3 ) {
1477                 rc = 0;
1478                 /* save the references for the result */
1479                 if( rs->sr_ref[0].bv_val != NULL ) {
1480                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1481                                 rc = LDAP_OTHER;
1482                 }
1483                 goto rel;
1484         }
1485
1486 #ifdef LDAP_CONNECTIONLESS
1487         if( op->o_conn && op->o_conn->c_is_udp ) {
1488                 ber = op->o_res_ber;
1489         } else
1490 #endif
1491         {
1492                 ber_init_w_nullc( ber, LBER_USE_DER );
1493                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1494         }
1495
1496         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1497                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1498
1499         if( rc != -1 ) {
1500                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1501         }
1502
1503         if( rc != -1 ) {
1504                 rc = ber_printf( ber, /*"{"*/ "N}" );
1505         }
1506
1507         if ( rc == -1 ) {
1508                 Debug( LDAP_DEBUG_ANY,
1509                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1510
1511 #ifdef LDAP_CONNECTIONLESS
1512                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1513 #endif
1514                 ber_free_buf( ber );
1515                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1516                 goto rel;
1517         }
1518
1519         rc = 0;
1520         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1521                 assert( rs->sr_entry != NULL );
1522                 be_entry_release_rw( op, rs->sr_entry, 0 );
1523                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1524                 rs->sr_entry = NULL;
1525         }
1526
1527 #ifdef LDAP_CONNECTIONLESS
1528         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1529 #endif
1530         bytes = send_ldap_ber( op, ber );
1531         ber_free_buf( ber );
1532
1533         if ( bytes < 0 ) {
1534                 rc = LDAP_UNAVAILABLE;
1535         } else {
1536                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1537                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1538                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1539                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1540                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1541         }
1542 #ifdef LDAP_CONNECTIONLESS
1543         }
1544 #endif
1545         if ( rs->sr_ref != NULL ) {
1546                 int     r;
1547
1548                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1549                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1550                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1551                                 0, 0 );
1552                 }
1553
1554         } else {
1555                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1556                         op->o_log_prefix, 0, 0, 0, 0 );
1557         }
1558
1559         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1560
1561 rel:
1562         if ( op->o_callback ) {
1563                 (void)slap_cleanup_play( op, rs );
1564         }
1565
1566         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1567                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1568                 if ( rs->sr_ctrls ) {
1569                         slap_free_ctrls( op, rs->sr_ctrls );
1570                         rs->sr_ctrls = NULL;
1571                 }
1572         }
1573
1574         return rc;
1575 }
1576
1577 int
1578 str2result(
1579     char        *s,
1580     int         *code,
1581     char        **matched,
1582     char        **info )
1583 {
1584         int     rc;
1585         char    *c;
1586
1587         *code = LDAP_SUCCESS;
1588         *matched = NULL;
1589         *info = NULL;
1590
1591         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1592                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1593                     s, 0, 0 );
1594
1595                 return( -1 );
1596         }
1597
1598         rc = 0;
1599         while ( (s = strchr( s, '\n' )) != NULL ) {
1600                 *s++ = '\0';
1601                 if ( *s == '\0' ) {
1602                         break;
1603                 }
1604                 if ( (c = strchr( s, ':' )) != NULL ) {
1605                         c++;
1606                 }
1607
1608                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1609                         char    *next = NULL;
1610                         long    retcode;
1611
1612                         if ( c == NULL ) {
1613                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1614                                     s, 0, 0 );
1615                                 rc = -1;
1616                                 continue;
1617                         }
1618
1619                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1620                         if ( c[ 0 ] == '\0' ) {
1621                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1622                                     s, 0, 0 );
1623                                 rc = -1;
1624                                 continue;
1625                         }
1626
1627                         retcode = strtol( c, &next, 10 );
1628                         if ( next == NULL || next == c ) {
1629                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1630                                     s, 0, 0 );
1631                                 rc = -1;
1632                                 continue;
1633                         }
1634
1635                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1636                         if ( next[ 0 ] != '\0' ) {
1637                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1638                                     s, 0, 0 );
1639                                 rc = -1;
1640                                 continue;
1641                         }
1642
1643                         /* FIXME: what if it's larger that max int? */
1644                         *code = (int)retcode;
1645
1646                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1647                         if ( c != NULL ) {
1648                                 *matched = c;
1649                         }
1650                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1651                         if ( c != NULL ) {
1652                                 *info = c;
1653                         }
1654                 } else {
1655                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1656                             s, 0, 0 );
1657
1658                         rc = -1;
1659                 }
1660         }
1661
1662         return( rc );
1663 }
1664
1665 int slap_read_controls(
1666         Operation *op,
1667         SlapReply *rs,
1668         Entry *e,
1669         const struct berval *oid,
1670         LDAPControl **ctrl )
1671 {
1672         int rc;
1673         struct berval bv;
1674         BerElementBuffer berbuf;
1675         BerElement *ber = (BerElement *) &berbuf;
1676         LDAPControl c;
1677         Operation myop;
1678
1679         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1680                 op->o_log_prefix, oid->bv_val, e->e_dn );
1681
1682         rs->sr_entry = e;
1683         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1684                 op->o_preread_attrs : op->o_postread_attrs;
1685
1686         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1687         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1688
1689         ber_init2( ber, &bv, LBER_USE_DER );
1690         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1691
1692         /* create new operation */
1693         myop = *op;
1694         /* FIXME: o_bd needed for ACL */
1695         myop.o_bd = op->o_bd;
1696         myop.o_res_ber = ber;
1697         myop.o_callback = NULL;
1698         myop.ors_slimit = 1;
1699
1700         rc = slap_send_search_entry( &myop, rs );
1701         if( rc ) return rc;
1702
1703         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1704
1705         if( rc == -1 ) return LDAP_OTHER;
1706
1707         c.ldctl_oid = oid->bv_val;
1708         c.ldctl_iscritical = 0;
1709
1710         if ( *ctrl == NULL ) {
1711                 /* first try */
1712                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1713         } else {
1714                 /* retry: free previous try */
1715                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1716         }
1717
1718         **ctrl = c;
1719         return LDAP_SUCCESS;
1720 }
1721
1722 /* Map API errors to protocol errors... */
1723 int
1724 slap_map_api2result( SlapReply *rs )
1725 {
1726         switch(rs->sr_err) {
1727         case LDAP_SERVER_DOWN:
1728                 return LDAP_UNAVAILABLE;
1729         case LDAP_LOCAL_ERROR:
1730                 return LDAP_OTHER;
1731         case LDAP_ENCODING_ERROR:
1732         case LDAP_DECODING_ERROR:
1733                 return LDAP_PROTOCOL_ERROR;
1734         case LDAP_TIMEOUT:
1735                 return LDAP_UNAVAILABLE;
1736         case LDAP_AUTH_UNKNOWN:
1737                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1738         case LDAP_FILTER_ERROR:
1739                 rs->sr_text = "Filter error";
1740                 return LDAP_OTHER;
1741         case LDAP_USER_CANCELLED:
1742                 rs->sr_text = "User cancelled";
1743                 return LDAP_OTHER;
1744         case LDAP_PARAM_ERROR:
1745                 return LDAP_PROTOCOL_ERROR;
1746         case LDAP_NO_MEMORY:
1747                 return LDAP_OTHER;
1748         case LDAP_CONNECT_ERROR:
1749                 return LDAP_UNAVAILABLE;
1750         case LDAP_NOT_SUPPORTED:
1751                 return LDAP_UNWILLING_TO_PERFORM;
1752         case LDAP_CONTROL_NOT_FOUND:
1753                 return LDAP_PROTOCOL_ERROR;
1754         case LDAP_NO_RESULTS_RETURNED:
1755                 return LDAP_NO_SUCH_OBJECT;
1756         case LDAP_MORE_RESULTS_TO_RETURN:
1757                 rs->sr_text = "More results to return";
1758                 return LDAP_OTHER;
1759         case LDAP_CLIENT_LOOP:
1760         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1761                 return LDAP_LOOP_DETECT;
1762         default:
1763                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1764                 return rs->sr_err;
1765         }
1766 }
1767
1768
1769 slap_mask_t
1770 slap_attr_flags( AttributeName *an )
1771 {
1772         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1773
1774         if ( an == NULL ) {
1775                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1776
1777         } else {
1778                 flags |= an_find( an, slap_bv_all_operational_attrs )
1779                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1780                 flags |= an_find( an, slap_bv_all_user_attrs )
1781                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1782         }
1783
1784         return flags;
1785 }