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 1998-2011 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
 138 int rs_suppress_assert = 0;
 139
 140 /* RS_ASSERT() helper function */
 141 void rs_assert_(const char*file, unsigned line, const char*fn, const char*cond)
 142 {
 143         int no_assert = rs_suppress_assert, save_errno = errno;
 144         const char *s;
 145
 146         if ( no_assert >= 0 ) {
 147                 if ( no_assert == 0 && (s = getenv( "NO_RS_ASSERT" )) && *s ) {
 148                         no_assert = rs_suppress_assert = atoi( s );
 149                 }
 150                 if ( no_assert > 0 ) {
 151                         errno = save_errno;
 152                         return;
 153                 }
 154         }
 155
 156 #ifdef rs_assert_       /* proto-slap.h #defined away the fn parameter */
 157         fprintf( stderr,"%s:%u: "  "RS_ASSERT(%s) failed.\n", file,line,cond );
 158 #else
 159         fprintf( stderr,"%s:%u: %s: RS_ASSERT(%s) failed.\n", file,line,fn,cond );
 160 #endif
 161         fflush( stderr );
 162
 163         errno = save_errno;
 164         /* $NO_RS_ASSERT > 0: ignore rs_asserts, 0: abort, < 0: just warn */
 165         if ( !no_assert /* from $NO_RS_ASSERT */ ) abort();
 166 }
 167
 168 /* SlapReply is consistent */
 169 void
 170 (rs_assert_ok)( const SlapReply *rs )
 171 {
 172         const slap_mask_t flags = rs->sr_flags;
 173
 174         if ( flags & REP_ENTRY_MASK ) {
 175                 RS_ASSERT( !(flags & REP_ENTRY_MUSTRELEASE)
 176                         || !(flags & (REP_ENTRY_MASK ^ REP_ENTRY_MUSTRELEASE)) );
 177                 RS_ASSERT( rs->sr_entry != NULL );
 178                 RS_ASSERT( (1 << rs->sr_type) &
 179                         ((1 << REP_SEARCH) | (1 << REP_SEARCHREF) |
 180                          (1 << REP_RESULT) | (1 << REP_GLUE_RESULT)) );
 181         }
 182 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 183         if ( (flags & (REP_MATCHED_MASK | REP_REF_MASK | REP_CTRLS_MASK)) ) {
 184                 RS_ASSERT( !(flags & REP_MATCHED_MASK) || rs->sr_matched );
 185                 RS_ASSERT( !(flags & REP_CTRLS_MASK  ) || rs->sr_ctrls   );
 186                 /* Note: LDAP_REFERRAL + !sr_ref is OK, becomes LDAP_NO_SUCH_OBJECT */
 187         }
 188 #if (USE_RS_ASSERT) > 2
 189         if ( rs->sr_err == LDAP_SUCCESS ) {
 190                 RS_ASSERT( rs->sr_text == NULL );
 191                 RS_ASSERT( rs->sr_matched == NULL );
 192         }
 193 #endif
 194 #endif
 195 }
 196
 197 /* Ready for calling a new backend operation */
 198 void
 199 (rs_assert_ready)( const SlapReply *rs )
 200 {
 201         RS_ASSERT( !rs->sr_entry   );
 202 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 203         RS_ASSERT( !rs->sr_text    );
 204         RS_ASSERT( !rs->sr_ref     );
 205         RS_ASSERT( !rs->sr_matched );
 206         RS_ASSERT( !rs->sr_ctrls   );
 207         RS_ASSERT( !rs->sr_flags   );
 208 #if (USE_RS_ASSERT) > 2
 209         RS_ASSERT( rs->sr_err == LDAP_SUCCESS );
 210 #endif
 211 #else
 212         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 213 #endif
 214 }
 215
 216 /* Backend operation done */
 217 void
 218 (rs_assert_done)( const SlapReply *rs )
 219 {
 220 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 221         RS_ASSERT( !(rs->sr_flags & ~(REP_ENTRY_MODIFIABLE|REP_NO_OPERATIONALS)) );
 222         rs_assert_ok( rs );
 223 #else
 224         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MUSTFLUSH) );
 225 #endif
 226 }
 227
 228 #endif /* LDAP_TEST || USE_RS_ASSERT */
 229
 230 /* Reset a used SlapReply whose contents has been flushed (freed/released) */
 231 void
 232 (rs_reinit)( SlapReply *rs, slap_reply_t type )
 233 {
 234         rs_reinit( rs, type );          /* proto-slap.h macro */
 235 }
 236
 237 /* Obey and clear rs->sr_flags & REP_ENTRY_MASK.  Clear sr_entry if freed. */
 238 void
 239 rs_flush_entry( Operation *op, SlapReply *rs, slap_overinst *on )
 240 {
 241         rs_assert_ok( rs );
 242
 243         if ( (rs->sr_flags & REP_ENTRY_MUSTFLUSH) && rs->sr_entry != NULL ) {
 244                 if ( !(rs->sr_flags & REP_ENTRY_MUSTRELEASE) ) {
 245                         entry_free( rs->sr_entry );
 246                 } else if ( on != NULL ) {
 247                         overlay_entry_release_ov( op, rs->sr_entry, 0, on );
 248                 } else {
 249                         be_entry_release_rw( op, rs->sr_entry, 0 );
 250                 }
 251                 rs->sr_entry = NULL;
 252         }
 253
 254         rs->sr_flags &= ~REP_ENTRY_MASK;
 255 }
 256
 257 /* Set rs->sr_entry after obeying and clearing sr_flags & REP_ENTRY_MASK. */
 258 void
 259 rs_replace_entry( Operation *op, SlapReply *rs, slap_overinst *on, Entry *e )
 260 {
 261         rs_flush_entry( op, rs, on );
 262         rs->sr_entry = e;
 263 }
 264
 265 /*
 266  * Ensure rs->sr_entry is modifiable, by duplicating it if necessary.
 267  * Obey sr_flags.  Set REP_ENTRY_<MODIFIABLE, and MUSTBEFREED if duplicated>.
 268  * Return nonzero if rs->sr_entry was replaced.
 269  */
 270 int
 271 rs_entry2modifiable( Operation *op, SlapReply *rs, slap_overinst *on )
 272 {
 273         if ( rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
 274                 rs_assert_ok( rs );
 275                 return 0;
 276         }
 277         rs_replace_entry( op, rs, on, entry_dup( rs->sr_entry ));
 278         rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED;
 279         return 1;
 280 }
 281
 282 static long send_ldap_ber(
 283         Operation *op,
 284         BerElement *ber )
 285 {
 286         Connection *conn = op->o_conn;
 287         ber_len_t bytes;
 288         long ret = 0;
 289
 290         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 291
 292         /* write only one pdu at a time - wait til it's our turn */
 293         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 294         if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
 295                 conn->c_writers < 0 ) {
 296                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 297                 return 0;
 298         }
 299
 300         conn->c_writers++;
 301
 302         while ( conn->c_writers > 0 && conn->c_writing ) {
 303                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 304         }
 305
 306         /* connection was closed under us */
 307         if ( conn->c_writers < 0 ) {
 308                 /* we're the last waiter, let the closer continue */
 309                 if ( conn->c_writers == -1 )
 310                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 311                 conn->c_writers++;
 312                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 313                 return 0;
 314         }
 315
 316         /* Our turn */
 317         conn->c_writing = 1;
 318
 319         /* write the pdu */
 320         while( 1 ) {
 321                 int err;
 322
 323                 /* lock the connection */
 324                 if ( ldap_pvt_thread_mutex_trylock( &conn->c_mutex )) {
 325                         if ( !connection_valid(conn)) {
 326                                 ret = 0;
 327                                 break;
 328                         }
 329                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 330                         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 331                         if ( conn->c_writers < 0 ) {
 332                                 ret = 0;
 333                                 break;
 334                         }
 335                         continue;
 336                 }
 337
 338                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 339                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 340                         ret = bytes;
 341                         break;
 342                 }
 343
 344                 err = sock_errno();
 345
 346                 /*
 347                  * we got an error.  if it's ewouldblock, we need to
 348                  * wait on the socket being writable.  otherwise, figure
 349                  * it's a hard error and return.
 350                  */
 351
 352                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 353                     err, sock_errstr(err), 0 );
 354
 355                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 356                         conn->c_writers--;
 357                         conn->c_writing = 0;
 358                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 359                         connection_closing( conn, "connection lost on write" );
 360
 361                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 362                         return -1;
 363                 }
 364
 365                 /* wait for socket to be write-ready */
 366                 ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
 367                 conn->c_writewaiter = 1;
 368                 slapd_set_write( conn->c_sd, 2 );
 369
 370                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 371                 ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 372                 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
 373                 conn->c_writewaiter = 0;
 374                 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
 375                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 376                 if ( conn->c_writers < 0 ) {
 377                         ret = 0;
 378                         break;
 379                 }
 380         }
 381
 382         conn->c_writing = 0;
 383         if ( conn->c_writers < 0 ) {
 384                 conn->c_writers++;
 385                 if ( !conn->c_writers )
 386                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 387         } else {
 388                 conn->c_writers--;
 389                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 390         }
 391         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 392
 393         return ret;
 394 }
 395
 396 static int
 397 send_ldap_control( BerElement *ber, LDAPControl *c )
 398 {
 399         int rc;
 400
 401         assert( c != NULL );
 402
 403         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 404
 405         if( c->ldctl_iscritical ) {
 406                 rc = ber_printf( ber, "b",
 407                         (ber_int_t) c->ldctl_iscritical ) ;
 408                 if( rc == -1 ) return rc;
 409         }
 410
 411         if( c->ldctl_value.bv_val != NULL ) {
 412                 rc = ber_printf( ber, "O", &c->ldctl_value );
 413                 if( rc == -1 ) return rc;
 414         }
 415
 416         rc = ber_printf( ber, /*{*/"N}" );
 417         if( rc == -1 ) return rc;
 418
 419         return 0;
 420 }
 421
 422 static int
 423 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 424 {
 425         int rc;
 426
 427         if( c == NULL )
 428                 return 0;
 429
 430         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 431         if( rc == -1 ) return rc;
 432
 433         for( ; *c != NULL; c++) {
 434                 rc = send_ldap_control( ber, *c );
 435                 if( rc == -1 ) return rc;
 436         }
 437
 438 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 439         /* this is a hack to avoid having to modify op->s_ctrls */
 440         if( o->o_sortedresults ) {
 441                 BerElementBuffer berbuf;
 442                 BerElement *sber = (BerElement *) &berbuf;
 443                 LDAPControl sorted;
 444                 BER_BVZERO( &sorted.ldctl_value );
 445                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 446                 sorted.ldctl_iscritical = 0;
 447
 448                 ber_init2( sber, NULL, LBER_USE_DER );
 449
 450                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 451
 452                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 453                         return -1;
 454                 }
 455
 456                 (void) ber_free_buf( sber );
 457
 458                 rc = send_ldap_control( ber, &sorted );
 459                 if( rc == -1 ) return rc;
 460         }
 461 #endif
 462
 463         rc = ber_printf( ber, /*{*/"N}" );
 464
 465         return rc;
 466 }
 467
 468 /*
 469  * slap_response_play()
 470  *
 471  * plays the callback list; rationale: a callback can
 472  *   - remove itself from the list, by setting op->o_callback = NULL;
 473  *     malloc()'ed callbacks should free themselves from inside the
 474  *     sc_response() function.
 475  *   - replace itself with another (list of) callback(s), by setting
 476  *     op->o_callback = a new (list of) callback(s); in this case, it
 477  *     is the callback's responsibility to to append existing subsequent
 478  *     callbacks to the end of the list that is passed to the sc_response()
 479  *     function.
 480  *   - modify the list of subsequent callbacks by modifying the value
 481  *     of the sc_next field from inside the sc_response() function; this
 482  *     case does not require any handling from inside slap_response_play()
 483  *
 484  * To stop execution of the playlist, the sc_response() function must return
 485  * a value different from SLAP_SC_CONTINUE.
 486  *
 487  * The same applies to slap_cleanup_play(); only, there is no means to stop
 488  * execution of the playlist, since all cleanup functions must be called.
 489  */
 490 static int
 491 slap_response_play(
 492         Operation *op,
 493         SlapReply *rs )
 494 {
 495         int rc;
 496
 497         slap_callback   *sc = op->o_callback, **scp;
 498
 499         rc = SLAP_CB_CONTINUE;
 500         for ( scp = &sc; *scp; ) {
 501                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 502
 503                 op->o_callback = *scp;
 504                 if ( op->o_callback->sc_response ) {
 505                         rc = op->o_callback->sc_response( op, rs );
 506                         if ( op->o_callback == NULL ) {
 507                                 /* the callback has been removed;
 508                                  * repair the list */
 509                                 *scp = sc_next;
 510                                 sc_nextp = scp;
 511
 512                         } else if ( op->o_callback != *scp ) {
 513                                 /* a new callback has been inserted
 514                                  * in place of the existing one; repair the list */
 515                                 *scp = op->o_callback;
 516                                 sc_nextp = scp;
 517                         }
 518                         if ( rc != SLAP_CB_CONTINUE ) break;
 519                 }
 520                 scp = sc_nextp;
 521         }
 522
 523         op->o_callback = sc;
 524         return rc;
 525 }
 526
 527 static int
 528 slap_cleanup_play(
 529         Operation *op,
 530         SlapReply *rs )
 531 {
 532         slap_callback   *sc = op->o_callback, **scp;
 533
 534         for ( scp = &sc; *scp; ) {
 535                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 536
 537                 op->o_callback = *scp;
 538                 if ( op->o_callback->sc_cleanup ) {
 539                         (void)op->o_callback->sc_cleanup( op, rs );
 540                         if ( op->o_callback == NULL ) {
 541                                 /* the callback has been removed;
 542                                  * repair the list */
 543                                 *scp = sc_next;
 544                                 sc_nextp = scp;
 545
 546                         } else if ( op->o_callback != *scp ) {
 547                                 /* a new callback has been inserted
 548                                  * after the existing one; repair the list */
 549                                 /* a new callback has been inserted
 550                                  * in place of the existing one; repair the list */
 551                                 *scp = op->o_callback;
 552                                 sc_nextp = scp;
 553                         }
 554                         /* don't care about the result; do all cleanup */
 555                 }
 556                 scp = sc_nextp;
 557         }
 558
 559         op->o_callback = sc;
 560         return LDAP_SUCCESS;
 561 }
 562
 563 static int
 564 send_ldap_response(
 565         Operation *op,
 566         SlapReply *rs )
 567 {
 568         BerElementBuffer berbuf;
 569         BerElement      *ber = (BerElement *) &berbuf;
 570         int             rc = LDAP_SUCCESS;
 571         long    bytes;
 572
 573         /* op was actually aborted, bypass everything if client didn't Cancel */
 574         if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
 575                 rc = SLAPD_ABANDON;
 576                 goto clean2;
 577         }
 578
 579         if ( op->o_callback ) {
 580                 rc = slap_response_play( op, rs );
 581                 if ( rc != SLAP_CB_CONTINUE ) {
 582                         goto clean2;
 583                 }
 584         }
 585
 586         /* op completed, connection aborted, bypass sending response */
 587         if ( op->o_abandon && !op->o_cancel ) {
 588                 rc = SLAPD_ABANDON;
 589                 goto clean2;
 590         }
 591
 592 #ifdef LDAP_CONNECTIONLESS
 593         if (op->o_conn && op->o_conn->c_is_udp)
 594                 ber = op->o_res_ber;
 595         else
 596 #endif
 597         {
 598                 ber_init_w_nullc( ber, LBER_USE_DER );
 599                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 600         }
 601
 602         rc = rs->sr_err;
 603         if ( rc == SLAPD_ABANDON && op->o_cancel )
 604                 rc = LDAP_CANCELLED;
 605
 606         Debug( LDAP_DEBUG_TRACE,
 607                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 608                 rs->sr_msgid, rs->sr_tag, rc );
 609
 610         if( rs->sr_ref ) {
 611                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 612                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 613                         NULL, NULL );
 614         }
 615
 616 #ifdef LDAP_CONNECTIONLESS
 617         if (op->o_conn && op->o_conn->c_is_udp &&
 618                 op->o_protocol == LDAP_VERSION2 )
 619         {
 620                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 621                         rs->sr_tag, rc,
 622                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 623                 rs->sr_text == NULL ? "" : rs->sr_text );
 624         } else
 625 #endif
 626         if ( rs->sr_type == REP_INTERMEDIATE ) {
 627             rc = ber_printf( ber, "{it{" /*"}}"*/,
 628                         rs->sr_msgid, rs->sr_tag );
 629
 630         } else {
 631             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 632                 rs->sr_msgid, rs->sr_tag, rc,
 633                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 634                 rs->sr_text == NULL ? "" : rs->sr_text );
 635         }
 636
 637         if( rc != -1 ) {
 638                 if ( rs->sr_ref != NULL ) {
 639                         assert( rs->sr_err == LDAP_REFERRAL );
 640                         rc = ber_printf( ber, "t{W}",
 641                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 642                 } else {
 643                         assert( rs->sr_err != LDAP_REFERRAL );
 644                 }
 645         }
 646
 647         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 648                 rc = ber_printf( ber, "tO",
 649                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 650         }
 651
 652         if( rc != -1 &&
 653                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 654         {
 655                 if ( rs->sr_rspoid != NULL ) {
 656                         rc = ber_printf( ber, "ts",
 657                                 rs->sr_type == REP_EXTENDED
 658                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 659                                 rs->sr_rspoid );
 660                 }
 661                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 662                         rc = ber_printf( ber, "tO",
 663                                 rs->sr_type == REP_EXTENDED
 664                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 665                                 rs->sr_rspdata );
 666                 }
 667         }
 668
 669         if( rc != -1 ) {
 670                 rc = ber_printf( ber, /*"{"*/ "N}" );
 671         }
 672
 673         if( rc != -1 ) {
 674                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 675         }
 676
 677         if( rc != -1 ) {
 678                 rc = ber_printf( ber, /*"{"*/ "N}" );
 679         }
 680
 681 #ifdef LDAP_CONNECTIONLESS
 682         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 683                 && rc != -1 )
 684         {
 685                 rc = ber_printf( ber, /*"{"*/ "N}" );
 686         }
 687 #endif
 688
 689         if ( rc == -1 ) {
 690                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 691
 692 #ifdef LDAP_CONNECTIONLESS
 693                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 694 #endif
 695                 {
 696                         ber_free_buf( ber );
 697                 }
 698                 goto cleanup;
 699         }
 700
 701         /* send BER */
 702         bytes = send_ldap_ber( op, ber );
 703 #ifdef LDAP_CONNECTIONLESS
 704         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 705 #endif
 706         {
 707                 ber_free_buf( ber );
 708         }
 709
 710         if ( bytes < 0 ) {
 711                 Debug( LDAP_DEBUG_ANY,
 712                         "send_ldap_response: ber write failed\n",
 713                         0, 0, 0 );
 714
 715                 goto cleanup;
 716         }
 717
 718         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 719         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 720         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 721         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 722
 723 cleanup:;
 724         /* Tell caller that we did this for real, as opposed to being
 725          * overridden by a callback
 726          */
 727         rc = SLAP_CB_CONTINUE;
 728
 729 clean2:;
 730         if ( op->o_callback ) {
 731                 (void)slap_cleanup_play( op, rs );
 732         }
 733
 734         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 735                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 736                 if ( rs->sr_matched ) {
 737                         free( (char *)rs->sr_matched );
 738                         rs->sr_matched = NULL;
 739                 }
 740         }
 741
 742         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 743                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 744                 if ( rs->sr_ref ) {
 745                         ber_bvarray_free( rs->sr_ref );
 746                         rs->sr_ref = NULL;
 747                 }
 748         }
 749
 750         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 751                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 752                 if ( rs->sr_ctrls ) {
 753                         slap_free_ctrls( op, rs->sr_ctrls );
 754                         rs->sr_ctrls = NULL;
 755                 }
 756         }
 757
 758         return rc;
 759 }
 760
 761
 762 void
 763 send_ldap_disconnect( Operation *op, SlapReply *rs )
 764 {
 765 #define LDAP_UNSOLICITED_ERROR(e) \
 766         (  (e) == LDAP_PROTOCOL_ERROR \
 767         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 768         || (e) == LDAP_UNAVAILABLE )
 769
 770         Debug( LDAP_DEBUG_TRACE,
 771                 "send_ldap_disconnect %d:%s\n",
 772                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 773         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 774
 775         /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
 776         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 777         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 778
 779         rs->sr_type = REP_EXTENDED;
 780         rs->sr_rspdata = NULL;
 781
 782         if ( op->o_protocol < LDAP_VERSION3 ) {
 783                 rs->sr_rspoid = NULL;
 784                 rs->sr_tag = slap_req2res( op->o_tag );
 785                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 786
 787         } else {
 788                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 789                 rs->sr_tag = LDAP_RES_EXTENDED;
 790                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 791         }
 792
 793         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 794                 Statslog( LDAP_DEBUG_STATS,
 795                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 796                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 797                         rs->sr_text ? rs->sr_text : "", 0 );
 798         }
 799 }
 800
 801 void
 802 slap_send_ldap_result( Operation *op, SlapReply *rs )
 803 {
 804         char *tmp = NULL;
 805         const char *otext = rs->sr_text;
 806         BerVarray oref = rs->sr_ref;
 807
 808         rs->sr_type = REP_RESULT;
 809
 810         /* Propagate Abandons so that cleanup callbacks can be processed */
 811         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 812                 goto abandon;
 813
 814         Debug( LDAP_DEBUG_TRACE,
 815                 "send_ldap_result: %s p=%d\n",
 816                 op->o_log_prefix, op->o_protocol, 0 );
 817         Debug( LDAP_DEBUG_ARGS,
 818                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 819                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 820                 rs->sr_text ? rs->sr_text : "" );
 821         if( rs->sr_ref ) {
 822                 Debug( LDAP_DEBUG_ARGS,
 823                         "send_ldap_result: referral=\"%s\"\n",
 824                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 825                         NULL, NULL );
 826         }
 827         assert( !LDAP_API_ERROR( rs->sr_err ) );
 828         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 829
 830         if ( rs->sr_err == LDAP_REFERRAL ) {
 831                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 832
 833                 if( rs->sr_ref == NULL ) {
 834                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 835                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 836                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 837                 }
 838         }
 839
 840         if ( op->o_protocol < LDAP_VERSION3 ) {
 841                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 842                 rs->sr_text = tmp;
 843                 rs->sr_ref = NULL;
 844         }
 845
 846 abandon:
 847         rs->sr_tag = slap_req2res( op->o_tag );
 848         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 849
 850         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 851                 if ( rs->sr_ref == NULL ) {
 852                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 853                         ber_bvarray_free( oref );
 854                 }
 855                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 856         }
 857
 858         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 859                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 860                         Statslog( LDAP_DEBUG_STATS,
 861                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 862                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 863                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 864                 } else {
 865                         Statslog( LDAP_DEBUG_STATS,
 866                                 "%s RESULT tag=%lu err=%d text=%s\n",
 867                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 868                                 rs->sr_text ? rs->sr_text : "", 0 );
 869                 }
 870         }
 871
 872         if( tmp != NULL ) ch_free(tmp);
 873         rs->sr_text = otext;
 874         rs->sr_ref = oref;
 875 }
 876
 877 void
 878 send_ldap_sasl( Operation *op, SlapReply *rs )
 879 {
 880         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 881                 rs->sr_err,
 882                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 883
 884         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 885         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 886
 887         rs->sr_type = REP_SASL;
 888         rs->sr_tag = slap_req2res( op->o_tag );
 889         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 890
 891         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 892                 Statslog( LDAP_DEBUG_STATS,
 893                         "%s RESULT tag=%lu err=%d text=%s\n",
 894                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 895                         rs->sr_text ? rs->sr_text : "", 0 );
 896         }
 897 }
 898
 899 void
 900 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 901 {
 902         Debug( LDAP_DEBUG_TRACE,
 903                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 904                 rs->sr_err,
 905                 rs->sr_rspoid ? rs->sr_rspoid : "",
 906                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 907
 908         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 909         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 910
 911         rs->sr_type = REP_EXTENDED;
 912         rs->sr_tag = slap_req2res( op->o_tag );
 913         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 914
 915         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 916                 Statslog( LDAP_DEBUG_STATS,
 917                         "%s RESULT oid=%s err=%d text=%s\n",
 918                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 919                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 920         }
 921 }
 922
 923 void
 924 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 925 {
 926         Debug( LDAP_DEBUG_TRACE,
 927                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 928                 rs->sr_err,
 929                 rs->sr_rspoid ? rs->sr_rspoid : "",
 930                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 931
 932         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 933         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 934
 935         rs->sr_type = REP_INTERMEDIATE;
 936         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 937         rs->sr_msgid = op->o_msgid;
 938         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 939                 Statslog( LDAP_DEBUG_STATS2,
 940                         "%s INTERM oid=%s\n",
 941                         op->o_log_prefix,
 942                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 943         }
 944 }
 945
 946 /*
 947  * returns:
 948  *
 949  * LDAP_SUCCESS                 entry sent
 950  * LDAP_OTHER                   entry not sent (other)
 951  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 952  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 953  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 954  */
 955
 956 int
 957 slap_send_search_entry( Operation *op, SlapReply *rs )
 958 {
 959         BerElementBuffer berbuf;
 960         BerElement      *ber = (BerElement *) &berbuf;
 961         Attribute       *a;
 962         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 963         int             userattrs;
 964         AccessControlState acl_state = ACL_STATE_INIT;
 965         int                      attrsonly;
 966         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 967
 968         /* a_flags: array of flags telling if the i-th element will be
 969          *          returned or filtered out
 970          * e_flags: array of a_flags
 971          */
 972         char **e_flags = NULL;
 973
 974         rs->sr_type = REP_SEARCH;
 975
 976         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 977                 rc = LDAP_SIZELIMIT_EXCEEDED;
 978                 goto error_return;
 979         }
 980
 981         /* Every 64 entries, check for thread pool pause */
 982         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 983                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 984         {
 985                 rc = LDAP_BUSY;
 986                 goto error_return;
 987         }
 988
 989         /* eventually will loop through generated operational attribute types
 990          * currently implemented types include:
 991          *      entryDN, subschemaSubentry, and hasSubordinates */
 992         /* NOTE: moved before overlays callback circling because
 993          * they may modify entry and other stuff in rs */
 994         /* check for special all operational attributes ("+") type */
 995         /* FIXME: maybe we could set this flag at the operation level;
 996          * however, in principle the caller of send_search_entry() may
 997          * change the attribute list at each call */
 998         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 999
1000         rc = backend_operational( op, rs );
1001         if ( rc ) {
1002                 goto error_return;
1003         }
1004
1005         if ( op->o_callback ) {
1006                 rc = slap_response_play( op, rs );
1007                 if ( rc != SLAP_CB_CONTINUE ) {
1008                         goto error_return;
1009                 }
1010         }
1011
1012         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
1013                 op->o_connid, rs->sr_entry->e_name.bv_val,
1014                 op->ors_attrsonly ? " (attrsOnly)" : "" );
1015
1016         attrsonly = op->ors_attrsonly;
1017
1018         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
1019                 Debug( LDAP_DEBUG_ACL,
1020                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
1021                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
1022
1023                 rc = LDAP_INSUFFICIENT_ACCESS;
1024                 goto error_return;
1025         }
1026
1027         if ( op->o_res_ber ) {
1028                 /* read back control or LDAP_CONNECTIONLESS */
1029             ber = op->o_res_ber;
1030         } else {
1031                 struct berval   bv;
1032
1033                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1034                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1035
1036                 ber_init2( ber, &bv, LBER_USE_DER );
1037                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1038         }
1039
1040 #ifdef LDAP_CONNECTIONLESS
1041         if ( op->o_conn && op->o_conn->c_is_udp ) {
1042                 /* CONNECTIONLESS */
1043                 if ( op->o_protocol == LDAP_VERSION2 ) {
1044                 rc = ber_printf(ber, "t{O{" /*}}*/,
1045                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1046                 } else {
1047                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1048                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1049                 }
1050         } else
1051 #endif
1052         if ( op->o_res_ber ) {
1053                 /* read back control */
1054             rc = ber_printf( ber, "t{O{" /*}}*/,
1055                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1056         } else {
1057             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1058                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1059         }
1060
1061         if ( rc == -1 ) {
1062                 Debug( LDAP_DEBUG_ANY,
1063                         "send_search_entry: conn %lu  ber_printf failed\n",
1064                         op->o_connid, 0, 0 );
1065
1066                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1067                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
1068                 rc = rs->sr_err;
1069                 goto error_return;
1070         }
1071
1072         /* check for special all user attributes ("*") type */
1073         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
1074
1075         /* create an array of arrays of flags. Each flag corresponds
1076          * to particular value of attribute and equals 1 if value matches
1077          * to ValuesReturnFilter or 0 if not
1078          */
1079         if ( op->o_vrFilter != NULL ) {
1080                 int     k = 0;
1081                 size_t  size;
1082
1083                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1084                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1085                 }
1086
1087                 size = i * sizeof(char *) + k;
1088                 if ( size > 0 ) {
1089                         char    *a_flags;
1090                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1091                         if( e_flags == NULL ) {
1092                         Debug( LDAP_DEBUG_ANY,
1093                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1094                                         op->o_connid, 0, 0 );
1095                                 ber_free( ber, 1 );
1096
1097                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
1098                                 goto error_return;
1099                         }
1100                         a_flags = (char *)(e_flags + i);
1101                         memset( a_flags, 0, k );
1102                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1103                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1104                                 e_flags[i] = a_flags;
1105                                 a_flags += j;
1106                         }
1107
1108                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1109                         if ( rc == -1 ) {
1110                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1111                                         "conn %lu matched values filtering failed\n",
1112                                         op->o_connid, 0, 0 );
1113                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1114                                 send_ldap_error( op, rs, LDAP_OTHER,
1115                                         "matched values filtering error" );
1116                                 rc = rs->sr_err;
1117                                 goto error_return;
1118                         }
1119                 }
1120         }
1121
1122         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1123                 AttributeDescription *desc = a->a_desc;
1124                 int finish = 0;
1125
1126                 if ( rs->sr_attrs == NULL ) {
1127                         /* all user attrs request, skip operational attributes */
1128                         if( is_at_operational( desc->ad_type ) ) {
1129                                 continue;
1130                         }
1131
1132                 } else {
1133                         /* specific attrs requested */
1134                         if ( is_at_operational( desc->ad_type ) ) {
1135                                 /* if not explicitly requested */
1136                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1137                                         /* if not all op attrs requested, skip */
1138                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1139                                                 continue;
1140                                         /* if DSA-specific and replicating, skip */
1141                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1142                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1143                                                 continue;
1144                                 }
1145                         } else {
1146                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1147                                         continue;
1148                                 }
1149                         }
1150                 }
1151
1152                 if ( attrsonly ) {
1153                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1154                                 ACL_READ, &acl_state ) )
1155                         {
1156                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1157                                         "conn %lu access to attribute %s not allowed\n",
1158                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1159                                 continue;
1160                         }
1161
1162                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1163                                 Debug( LDAP_DEBUG_ANY,
1164                                         "send_search_entry: conn %lu  ber_printf failed\n",
1165                                         op->o_connid, 0, 0 );
1166
1167                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1168                                 send_ldap_error( op, rs, LDAP_OTHER,
1169                                         "encoding description error");
1170                                 rc = rs->sr_err;
1171                                 goto error_return;
1172                         }
1173                         finish = 1;
1174
1175                 } else {
1176                         int first = 1;
1177                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1178                                 if ( ! access_allowed( op, rs->sr_entry,
1179                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1180                                 {
1181                                         Debug( LDAP_DEBUG_ACL,
1182                                                 "send_search_entry: conn %lu "
1183                                                 "access to attribute %s, value #%d not allowed\n",
1184                                                 op->o_connid, desc->ad_cname.bv_val, i );
1185
1186                                         continue;
1187                                 }
1188
1189                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1190                                         continue;
1191                                 }
1192
1193                                 if ( first ) {
1194                                         first = 0;
1195                                         finish = 1;
1196                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1197                                                 Debug( LDAP_DEBUG_ANY,
1198                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1199                                                         op->o_connid, 0, 0 );
1200
1201                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1202                                                 send_ldap_error( op, rs, LDAP_OTHER,
1203                                                         "encoding description error");
1204                                                 rc = rs->sr_err;
1205                                                 goto error_return;
1206                                         }
1207                                 }
1208                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1209                                         Debug( LDAP_DEBUG_ANY,
1210                                                 "send_search_entry: conn %lu  "
1211                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1212
1213                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1214                                         send_ldap_error( op, rs, LDAP_OTHER,
1215                                                 "encoding values error" );
1216                                         rc = rs->sr_err;
1217                                         goto error_return;
1218                                 }
1219                         }
1220                 }
1221
1222                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1223                         Debug( LDAP_DEBUG_ANY,
1224                                 "send_search_entry: conn %lu ber_printf failed\n",
1225                                 op->o_connid, 0, 0 );
1226
1227                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1228                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1229                         rc = rs->sr_err;
1230                         goto error_return;
1231                 }
1232         }
1233
1234         /* NOTE: moved before overlays callback circling because
1235          * they may modify entry and other stuff in rs */
1236         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1237                 int     k = 0;
1238                 size_t  size;
1239
1240                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1241                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1242                 }
1243
1244                 size = i * sizeof(char *) + k;
1245                 if ( size > 0 ) {
1246                         char    *a_flags, **tmp;
1247
1248                         /*
1249                          * Reuse previous memory - we likely need less space
1250                          * for operational attributes
1251                          */
1252                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1253                                 op->o_tmpmemctx );
1254                         if ( tmp == NULL ) {
1255                                 Debug( LDAP_DEBUG_ANY,
1256                                         "send_search_entry: conn %lu "
1257                                         "not enough memory "
1258                                         "for matched values filtering\n",
1259                                         op->o_connid, 0, 0 );
1260                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1261                                 send_ldap_error( op, rs, LDAP_OTHER,
1262                                         "not enough memory for matched values filtering" );
1263                                 goto error_return;
1264                         }
1265                         e_flags = tmp;
1266                         a_flags = (char *)(e_flags + i);
1267                         memset( a_flags, 0, k );
1268                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1269                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1270                                 e_flags[i] = a_flags;
1271                                 a_flags += j;
1272                         }
1273                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1274
1275                         if ( rc == -1 ) {
1276                                 Debug( LDAP_DEBUG_ANY,
1277                                         "send_search_entry: conn %lu "
1278                                         "matched values filtering failed\n",
1279                                         op->o_connid, 0, 0);
1280                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1281                                 send_ldap_error( op, rs, LDAP_OTHER,
1282                                         "matched values filtering error" );
1283                                 rc = rs->sr_err;
1284                                 goto error_return;
1285                         }
1286                 }
1287         }
1288
1289         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1290                 AttributeDescription *desc = a->a_desc;
1291
1292                 if ( rs->sr_attrs == NULL ) {
1293                         /* all user attrs request, skip operational attributes */
1294                         if( is_at_operational( desc->ad_type ) ) {
1295                                 continue;
1296                         }
1297
1298                 } else {
1299                         /* specific attrs requested */
1300                         if( is_at_operational( desc->ad_type ) ) {
1301                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1302                                         !ad_inlist( desc, rs->sr_attrs ) )
1303                                 {
1304                                         continue;
1305                                 }
1306                         } else {
1307                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1308                                         continue;
1309                                 }
1310                         }
1311                 }
1312
1313                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1314                         ACL_READ, &acl_state ) )
1315                 {
1316                         Debug( LDAP_DEBUG_ACL,
1317                                 "send_search_entry: conn %lu "
1318                                 "access to attribute %s not allowed\n",
1319                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1320
1321                         continue;
1322                 }
1323
1324                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1325                 if ( rc == -1 ) {
1326                         Debug( LDAP_DEBUG_ANY,
1327                                 "send_search_entry: conn %lu  "
1328                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1329
1330                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1331                         send_ldap_error( op, rs, LDAP_OTHER,
1332                                 "encoding description error" );
1333                         rc = rs->sr_err;
1334                         goto error_return;
1335                 }
1336
1337                 if ( ! attrsonly ) {
1338                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1339                                 if ( ! access_allowed( op, rs->sr_entry,
1340                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1341                                 {
1342                                         Debug( LDAP_DEBUG_ACL,
1343                                                 "send_search_entry: conn %lu "
1344                                                 "access to %s, value %d not allowed\n",
1345                                                 op->o_connid, desc->ad_cname.bv_val, i );
1346
1347                                         continue;
1348                                 }
1349
1350                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1351                                         continue;
1352                                 }
1353
1354                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1355                                         Debug( LDAP_DEBUG_ANY,
1356                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1357                                                 op->o_connid, 0, 0 );
1358
1359                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1360                                         send_ldap_error( op, rs, LDAP_OTHER,
1361                                                 "encoding values error" );
1362                                         rc = rs->sr_err;
1363                                         goto error_return;
1364                                 }
1365                         }
1366                 }
1367
1368                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1369                         Debug( LDAP_DEBUG_ANY,
1370                                 "send_search_entry: conn %lu  ber_printf failed\n",
1371                                 op->o_connid, 0, 0 );
1372
1373                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1374                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1375                         rc = rs->sr_err;
1376                         goto error_return;
1377                 }
1378         }
1379
1380         /* free e_flags */
1381         if ( e_flags ) {
1382                 slap_sl_free( e_flags, op->o_tmpmemctx );
1383                 e_flags = NULL;
1384         }
1385
1386         rc = ber_printf( ber, /*{{*/ "}N}" );
1387
1388         if( rc != -1 ) {
1389                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1390         }
1391
1392         if( rc != -1 ) {
1393 #ifdef LDAP_CONNECTIONLESS
1394                 if( op->o_conn && op->o_conn->c_is_udp ) {
1395                         if ( op->o_protocol != LDAP_VERSION2 ) {
1396                                 rc = ber_printf( ber, /*{*/ "N}" );
1397                         }
1398                 } else
1399 #endif
1400                 if ( op->o_res_ber == NULL ) {
1401                         rc = ber_printf( ber, /*{*/ "N}" );
1402                 }
1403         }
1404
1405         if ( rc == -1 ) {
1406                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1407
1408                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1409                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1410                 rc = rs->sr_err;
1411                 goto error_return;
1412         }
1413
1414         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1415             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1416
1417         rs_flush_entry( op, rs, NULL );
1418
1419         if ( op->o_res_ber == NULL ) {
1420                 bytes = send_ldap_ber( op, ber );
1421                 ber_free_buf( ber );
1422
1423                 if ( bytes < 0 ) {
1424                         Debug( LDAP_DEBUG_ANY,
1425                                 "send_search_entry: conn %lu  ber write failed.\n",
1426                                 op->o_connid, 0, 0 );
1427
1428                         rc = LDAP_UNAVAILABLE;
1429                         goto error_return;
1430                 }
1431                 rs->sr_nentries++;
1432
1433                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1434                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1435                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1436                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1437                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1438         }
1439
1440         Debug( LDAP_DEBUG_TRACE,
1441                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1442
1443         rc = LDAP_SUCCESS;
1444
1445 error_return:;
1446         if ( op->o_callback ) {
1447                 (void)slap_cleanup_play( op, rs );
1448         }
1449
1450         if ( e_flags ) {
1451                 slap_sl_free( e_flags, op->o_tmpmemctx );
1452         }
1453
1454         /* FIXME: Can break if rs now contains an extended response */
1455         if ( rs->sr_operational_attrs ) {
1456                 attrs_free( rs->sr_operational_attrs );
1457                 rs->sr_operational_attrs = NULL;
1458         }
1459         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1460
1461         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1462                 rs_flush_entry( op, rs, NULL );
1463         } else {
1464                 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
1465         }
1466
1467         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1468                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1469                 if ( rs->sr_ctrls ) {
1470                         slap_free_ctrls( op, rs->sr_ctrls );
1471                         rs->sr_ctrls = NULL;
1472                 }
1473         }
1474
1475         return( rc );
1476 }
1477
1478 int
1479 slap_send_search_reference( Operation *op, SlapReply *rs )
1480 {
1481         BerElementBuffer berbuf;
1482         BerElement      *ber = (BerElement *) &berbuf;
1483         int rc = 0;
1484         int bytes;
1485         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1486
1487         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1488         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1489
1490         rs->sr_type = REP_SEARCHREF;
1491         if ( op->o_callback ) {
1492                 rc = slap_response_play( op, rs );
1493                 if ( rc != SLAP_CB_CONTINUE ) {
1494                         goto rel;
1495                 }
1496         }
1497
1498         Debug( LDAP_DEBUG_TRACE,
1499                 "=> send_search_reference: dn=\"%s\"\n",
1500                 edn, 0, 0 );
1501
1502         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1503                 ad_entry, NULL, ACL_READ, NULL ) )
1504         {
1505                 Debug( LDAP_DEBUG_ACL,
1506                         "send_search_reference: access to entry not allowed\n",
1507                     0, 0, 0 );
1508                 rc = 1;
1509                 goto rel;
1510         }
1511
1512         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1513                 ad_ref, NULL, ACL_READ, NULL ) )
1514         {
1515                 Debug( LDAP_DEBUG_ACL,
1516                         "send_search_reference: access "
1517                         "to reference not allowed\n",
1518                     0, 0, 0 );
1519                 rc = 1;
1520                 goto rel;
1521         }
1522
1523         if( op->o_domain_scope ) {
1524                 Debug( LDAP_DEBUG_ANY,
1525                         "send_search_reference: domainScope control in (%s)\n",
1526                         edn, 0, 0 );
1527                 rc = 0;
1528                 goto rel;
1529         }
1530
1531         if( rs->sr_ref == NULL ) {
1532                 Debug( LDAP_DEBUG_ANY,
1533                         "send_search_reference: null ref in (%s)\n",
1534                         edn, 0, 0 );
1535                 rc = 1;
1536                 goto rel;
1537         }
1538
1539         if( op->o_protocol < LDAP_VERSION3 ) {
1540                 rc = 0;
1541                 /* save the references for the result */
1542                 if( rs->sr_ref[0].bv_val != NULL ) {
1543                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1544                                 rc = LDAP_OTHER;
1545                 }
1546                 goto rel;
1547         }
1548
1549 #ifdef LDAP_CONNECTIONLESS
1550         if( op->o_conn && op->o_conn->c_is_udp ) {
1551                 ber = op->o_res_ber;
1552         } else
1553 #endif
1554         {
1555                 ber_init_w_nullc( ber, LBER_USE_DER );
1556                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1557         }
1558
1559         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1560                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1561
1562         if( rc != -1 ) {
1563                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1564         }
1565
1566         if( rc != -1 ) {
1567                 rc = ber_printf( ber, /*"{"*/ "N}" );
1568         }
1569
1570         if ( rc == -1 ) {
1571                 Debug( LDAP_DEBUG_ANY,
1572                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1573
1574 #ifdef LDAP_CONNECTIONLESS
1575                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1576 #endif
1577                 ber_free_buf( ber );
1578                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1579                 goto rel;
1580         }
1581
1582         rc = 0;
1583         rs_flush_entry( op, rs, NULL );
1584
1585 #ifdef LDAP_CONNECTIONLESS
1586         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1587 #endif
1588         bytes = send_ldap_ber( op, ber );
1589         ber_free_buf( ber );
1590
1591         if ( bytes < 0 ) {
1592                 rc = LDAP_UNAVAILABLE;
1593         } else {
1594                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1595                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1596                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1597                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1598                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1599         }
1600 #ifdef LDAP_CONNECTIONLESS
1601         }
1602 #endif
1603         if ( rs->sr_ref != NULL ) {
1604                 int     r;
1605
1606                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1607                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1608                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1609                                 0, 0 );
1610                 }
1611
1612         } else {
1613                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1614                         op->o_log_prefix, 0, 0, 0, 0 );
1615         }
1616
1617         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1618
1619         if ( 0 ) {
1620 rel:
1621             rs_flush_entry( op, rs, NULL );
1622         }
1623
1624         if ( op->o_callback ) {
1625                 (void)slap_cleanup_play( op, rs );
1626         }
1627
1628         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1629                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1630                 if ( rs->sr_ctrls ) {
1631                         slap_free_ctrls( op, rs->sr_ctrls );
1632                         rs->sr_ctrls = NULL;
1633                 }
1634         }
1635
1636         return rc;
1637 }
1638
1639 int
1640 str2result(
1641     char        *s,
1642     int         *code,
1643     char        **matched,
1644     char        **info )
1645 {
1646         int     rc;
1647         char    *c;
1648
1649         *code = LDAP_SUCCESS;
1650         *matched = NULL;
1651         *info = NULL;
1652
1653         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1654                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1655                     s, 0, 0 );
1656
1657                 return( -1 );
1658         }
1659
1660         rc = 0;
1661         while ( (s = strchr( s, '\n' )) != NULL ) {
1662                 *s++ = '\0';
1663                 if ( *s == '\0' ) {
1664                         break;
1665                 }
1666                 if ( (c = strchr( s, ':' )) != NULL ) {
1667                         c++;
1668                 }
1669
1670                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1671                         char    *next = NULL;
1672                         long    retcode;
1673
1674                         if ( c == NULL ) {
1675                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1676                                     s, 0, 0 );
1677                                 rc = -1;
1678                                 continue;
1679                         }
1680
1681                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1682                         if ( c[ 0 ] == '\0' ) {
1683                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1684                                     s, 0, 0 );
1685                                 rc = -1;
1686                                 continue;
1687                         }
1688
1689                         retcode = strtol( c, &next, 10 );
1690                         if ( next == NULL || next == c ) {
1691                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1692                                     s, 0, 0 );
1693                                 rc = -1;
1694                                 continue;
1695                         }
1696
1697                         while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
1698                                 next++;
1699                         if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
1700                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1701                                     s, 0, 0 );
1702                                 rc = -1;
1703                                 continue;
1704                         }
1705
1706                         /* FIXME: what if it's larger than max int? */
1707                         *code = (int)retcode;
1708
1709                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1710                         if ( c != NULL ) {
1711                                 *matched = c;
1712                         }
1713                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1714                         if ( c != NULL ) {
1715                                 *info = c;
1716                         }
1717                 } else {
1718                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1719                             s, 0, 0 );
1720
1721                         rc = -1;
1722                 }
1723         }
1724
1725         return( rc );
1726 }
1727
1728 int slap_read_controls(
1729         Operation *op,
1730         SlapReply *rs,
1731         Entry *e,
1732         const struct berval *oid,
1733         LDAPControl **ctrl )
1734 {
1735         int rc;
1736         struct berval bv;
1737         BerElementBuffer berbuf;
1738         BerElement *ber = (BerElement *) &berbuf;
1739         LDAPControl c;
1740         Operation myop;
1741
1742         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1743                 op->o_log_prefix, oid->bv_val, e->e_dn );
1744
1745         rs->sr_entry = e;
1746         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1747                 op->o_preread_attrs : op->o_postread_attrs;
1748
1749         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1750         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1751
1752         ber_init2( ber, &bv, LBER_USE_DER );
1753         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1754
1755         /* create new operation */
1756         myop = *op;
1757         /* FIXME: o_bd needed for ACL */
1758         myop.o_bd = op->o_bd;
1759         myop.o_res_ber = ber;
1760         myop.o_callback = NULL;
1761         myop.ors_slimit = 1;
1762         myop.ors_attrsonly = 0;
1763
1764         rc = slap_send_search_entry( &myop, rs );
1765         if( rc ) return rc;
1766
1767         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1768
1769         if( rc == -1 ) return LDAP_OTHER;
1770
1771         c.ldctl_oid = oid->bv_val;
1772         c.ldctl_iscritical = 0;
1773
1774         if ( *ctrl == NULL ) {
1775                 /* first try */
1776                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1777         } else {
1778                 /* retry: free previous try */
1779                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1780         }
1781
1782         **ctrl = c;
1783         return LDAP_SUCCESS;
1784 }
1785
1786 /* Map API errors to protocol errors... */
1787 int
1788 slap_map_api2result( SlapReply *rs )
1789 {
1790         switch(rs->sr_err) {
1791         case LDAP_SERVER_DOWN:
1792                 return LDAP_UNAVAILABLE;
1793         case LDAP_LOCAL_ERROR:
1794                 return LDAP_OTHER;
1795         case LDAP_ENCODING_ERROR:
1796         case LDAP_DECODING_ERROR:
1797                 return LDAP_PROTOCOL_ERROR;
1798         case LDAP_TIMEOUT:
1799                 return LDAP_UNAVAILABLE;
1800         case LDAP_AUTH_UNKNOWN:
1801                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1802         case LDAP_FILTER_ERROR:
1803                 rs->sr_text = "Filter error";
1804                 return LDAP_OTHER;
1805         case LDAP_USER_CANCELLED:
1806                 rs->sr_text = "User cancelled";
1807                 return LDAP_OTHER;
1808         case LDAP_PARAM_ERROR:
1809                 return LDAP_PROTOCOL_ERROR;
1810         case LDAP_NO_MEMORY:
1811                 return LDAP_OTHER;
1812         case LDAP_CONNECT_ERROR:
1813                 return LDAP_UNAVAILABLE;
1814         case LDAP_NOT_SUPPORTED:
1815                 return LDAP_UNWILLING_TO_PERFORM;
1816         case LDAP_CONTROL_NOT_FOUND:
1817                 return LDAP_PROTOCOL_ERROR;
1818         case LDAP_NO_RESULTS_RETURNED:
1819                 return LDAP_NO_SUCH_OBJECT;
1820         case LDAP_MORE_RESULTS_TO_RETURN:
1821                 rs->sr_text = "More results to return";
1822                 return LDAP_OTHER;
1823         case LDAP_CLIENT_LOOP:
1824         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1825                 return LDAP_LOOP_DETECT;
1826         default:
1827                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1828                 return rs->sr_err;
1829         }
1830 }
1831
1832
1833 slap_mask_t
1834 slap_attr_flags( AttributeName *an )
1835 {
1836         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1837
1838         if ( an == NULL ) {
1839                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1840
1841         } else {
1842                 flags |= an_find( an, slap_bv_all_operational_attrs )
1843                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1844                 flags |= an_find( an, slap_bv_all_user_attrs )
1845                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1846         }
1847
1848         return flags;
1849 }