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 1998-2015 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 /* Check for any callbacks that want to be informed about being blocked
 283  * on output. These callbacks are expected to leave the callback list
 284  * unmodified. Their result is ignored.
 285  */
 286 static void
 287 slap_writewait_play(
 288         Operation *op )
 289 {
 290         slap_callback   *sc = op->o_callback;
 291
 292         for ( ; sc; sc = sc->sc_next ) {
 293                 if ( sc->sc_writewait )
 294                         sc->sc_writewait( op, sc );
 295         }
 296 }
 297
 298 static long send_ldap_ber(
 299         Operation *op,
 300         BerElement *ber )
 301 {
 302         Connection *conn = op->o_conn;
 303         ber_len_t bytes;
 304         long ret = 0;
 305
 306         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 307
 308         /* write only one pdu at a time - wait til it's our turn */
 309         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 310         if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
 311                 conn->c_writers < 0 ) {
 312                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 313                 return 0;
 314         }
 315
 316         conn->c_writers++;
 317
 318         while ( conn->c_writers > 0 && conn->c_writing ) {
 319                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 320         }
 321
 322         /* connection was closed under us */
 323         if ( conn->c_writers < 0 ) {
 324                 /* we're the last waiter, let the closer continue */
 325                 if ( conn->c_writers == -1 )
 326                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 327                 conn->c_writers++;
 328                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 329                 return 0;
 330         }
 331
 332         /* Our turn */
 333         conn->c_writing = 1;
 334
 335         /* write the pdu */
 336         while( 1 ) {
 337                 int err;
 338
 339                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 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                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 360                         connection_closing( conn, "connection lost on write" );
 361
 362                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 363                         return -1;
 364                 }
 365
 366                 /* wait for socket to be write-ready */
 367                 slap_writewait_play( op );
 368                 ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
 369                 conn->c_writewaiter = 1;
 370                 slapd_set_write( conn->c_sd, 2 );
 371
 372                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 373                 ldap_pvt_thread_pool_idle( &connection_pool );
 374                 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
 375                 conn->c_writewaiter = 0;
 376                 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
 377                 ldap_pvt_thread_pool_unidle( &connection_pool );
 378                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 379                 if ( conn->c_writers < 0 ) {
 380                         ret = 0;
 381                         break;
 382                 }
 383         }
 384
 385         conn->c_writing = 0;
 386         if ( conn->c_writers < 0 ) {
 387                 conn->c_writers++;
 388                 if ( !conn->c_writers )
 389                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 390         } else {
 391                 conn->c_writers--;
 392                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 393         }
 394         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 395
 396         return ret;
 397 }
 398
 399 static int
 400 send_ldap_control( BerElement *ber, LDAPControl *c )
 401 {
 402         int rc;
 403
 404         assert( c != NULL );
 405
 406         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 407
 408         if( c->ldctl_iscritical ) {
 409                 rc = ber_printf( ber, "b",
 410                         (ber_int_t) c->ldctl_iscritical ) ;
 411                 if( rc == -1 ) return rc;
 412         }
 413
 414         if( c->ldctl_value.bv_val != NULL ) {
 415                 rc = ber_printf( ber, "O", &c->ldctl_value );
 416                 if( rc == -1 ) return rc;
 417         }
 418
 419         rc = ber_printf( ber, /*{*/"N}" );
 420         if( rc == -1 ) return rc;
 421
 422         return 0;
 423 }
 424
 425 static int
 426 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 427 {
 428         int rc;
 429
 430         if( c == NULL )
 431                 return 0;
 432
 433         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 434         if( rc == -1 ) return rc;
 435
 436         for( ; *c != NULL; c++) {
 437                 rc = send_ldap_control( ber, *c );
 438                 if( rc == -1 ) return rc;
 439         }
 440
 441 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 442         /* this is a hack to avoid having to modify op->s_ctrls */
 443         if( o->o_sortedresults ) {
 444                 BerElementBuffer berbuf;
 445                 BerElement *sber = (BerElement *) &berbuf;
 446                 LDAPControl sorted;
 447                 BER_BVZERO( &sorted.ldctl_value );
 448                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 449                 sorted.ldctl_iscritical = 0;
 450
 451                 ber_init2( sber, NULL, LBER_USE_DER );
 452
 453                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 454
 455                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 456                         return -1;
 457                 }
 458
 459                 (void) ber_free_buf( sber );
 460
 461                 rc = send_ldap_control( ber, &sorted );
 462                 if( rc == -1 ) return rc;
 463         }
 464 #endif
 465
 466         rc = ber_printf( ber, /*{*/"N}" );
 467
 468         return rc;
 469 }
 470
 471 /*
 472  * slap_response_play()
 473  *
 474  * plays the callback list; rationale: a callback can
 475  *   - remove itself from the list, by setting op->o_callback = NULL;
 476  *     malloc()'ed callbacks should free themselves from inside the
 477  *     sc_response() function.
 478  *   - replace itself with another (list of) callback(s), by setting
 479  *     op->o_callback = a new (list of) callback(s); in this case, it
 480  *     is the callback's responsibility to to append existing subsequent
 481  *     callbacks to the end of the list that is passed to the sc_response()
 482  *     function.
 483  *   - modify the list of subsequent callbacks by modifying the value
 484  *     of the sc_next field from inside the sc_response() function; this
 485  *     case does not require any handling from inside slap_response_play()
 486  *
 487  * To stop execution of the playlist, the sc_response() function must return
 488  * a value different from SLAP_SC_CONTINUE.
 489  *
 490  * The same applies to slap_cleanup_play(); only, there is no means to stop
 491  * execution of the playlist, since all cleanup functions must be called.
 492  */
 493 static int
 494 slap_response_play(
 495         Operation *op,
 496         SlapReply *rs )
 497 {
 498         int rc;
 499
 500         slap_callback   *sc = op->o_callback, **scp;
 501
 502         rc = SLAP_CB_CONTINUE;
 503         for ( scp = &sc; *scp; ) {
 504                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 505
 506                 op->o_callback = *scp;
 507                 if ( op->o_callback->sc_response ) {
 508                         rc = op->o_callback->sc_response( op, rs );
 509                         if ( op->o_callback == NULL ) {
 510                                 /* the callback has been removed;
 511                                  * repair the list */
 512                                 *scp = sc_next;
 513                                 sc_nextp = scp;
 514
 515                         } else if ( op->o_callback != *scp ) {
 516                                 /* a new callback has been inserted
 517                                  * in place of the existing one; repair the list */
 518                                 *scp = op->o_callback;
 519                                 sc_nextp = scp;
 520                         }
 521                         if ( rc != SLAP_CB_CONTINUE ) break;
 522                 }
 523                 scp = sc_nextp;
 524         }
 525
 526         op->o_callback = sc;
 527         return rc;
 528 }
 529
 530 static int
 531 slap_cleanup_play(
 532         Operation *op,
 533         SlapReply *rs )
 534 {
 535         slap_callback   *sc = op->o_callback, **scp;
 536
 537         for ( scp = &sc; *scp; ) {
 538                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 539
 540                 op->o_callback = *scp;
 541                 if ( op->o_callback->sc_cleanup ) {
 542                         (void)op->o_callback->sc_cleanup( op, rs );
 543                         if ( op->o_callback == NULL ) {
 544                                 /* the callback has been removed;
 545                                  * repair the list */
 546                                 *scp = sc_next;
 547                                 sc_nextp = scp;
 548
 549                         } else if ( op->o_callback != *scp ) {
 550                                 /* a new callback has been inserted
 551                                  * after the existing one; repair the list */
 552                                 /* a new callback has been inserted
 553                                  * in place of the existing one; repair the list */
 554                                 *scp = op->o_callback;
 555                                 sc_nextp = scp;
 556                         }
 557                         /* don't care about the result; do all cleanup */
 558                 }
 559                 scp = sc_nextp;
 560         }
 561
 562         op->o_callback = sc;
 563         return LDAP_SUCCESS;
 564 }
 565
 566 static int
 567 send_ldap_response(
 568         Operation *op,
 569         SlapReply *rs )
 570 {
 571         BerElementBuffer berbuf;
 572         BerElement      *ber = (BerElement *) &berbuf;
 573         int             rc = LDAP_SUCCESS;
 574         long    bytes;
 575
 576         /* op was actually aborted, bypass everything if client didn't Cancel */
 577         if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
 578                 rc = SLAPD_ABANDON;
 579                 goto clean2;
 580         }
 581
 582         if ( op->o_callback ) {
 583                 rc = slap_response_play( op, rs );
 584                 if ( rc != SLAP_CB_CONTINUE ) {
 585                         goto clean2;
 586                 }
 587         }
 588
 589         /* op completed, connection aborted, bypass sending response */
 590         if ( op->o_abandon && !op->o_cancel ) {
 591                 rc = SLAPD_ABANDON;
 592                 goto clean2;
 593         }
 594
 595 #ifdef LDAP_CONNECTIONLESS
 596         if (op->o_conn && op->o_conn->c_is_udp)
 597                 ber = op->o_res_ber;
 598         else
 599 #endif
 600         {
 601                 ber_init_w_nullc( ber, LBER_USE_DER );
 602                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 603         }
 604
 605         rc = rs->sr_err;
 606         if ( rc == SLAPD_ABANDON && op->o_cancel )
 607                 rc = LDAP_CANCELLED;
 608
 609         Debug( LDAP_DEBUG_TRACE,
 610                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 611                 rs->sr_msgid, rs->sr_tag, rc );
 612
 613         if( rs->sr_ref ) {
 614                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 615                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 616                         NULL, NULL );
 617         }
 618
 619 #ifdef LDAP_CONNECTIONLESS
 620         if (op->o_conn && op->o_conn->c_is_udp &&
 621                 op->o_protocol == LDAP_VERSION2 )
 622         {
 623                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 624                         rs->sr_tag, rc,
 625                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 626                 rs->sr_text == NULL ? "" : rs->sr_text );
 627         } else
 628 #endif
 629         if ( rs->sr_type == REP_INTERMEDIATE ) {
 630             rc = ber_printf( ber, "{it{" /*"}}"*/,
 631                         rs->sr_msgid, rs->sr_tag );
 632
 633         } else {
 634             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 635                 rs->sr_msgid, rs->sr_tag, rc,
 636                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 637                 rs->sr_text == NULL ? "" : rs->sr_text );
 638         }
 639
 640         if( rc != -1 ) {
 641                 if ( rs->sr_ref != NULL ) {
 642                         assert( rs->sr_err == LDAP_REFERRAL );
 643                         rc = ber_printf( ber, "t{W}",
 644                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 645                 } else {
 646                         assert( rs->sr_err != LDAP_REFERRAL );
 647                 }
 648         }
 649
 650         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 651                 rc = ber_printf( ber, "tO",
 652                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 653         }
 654
 655         if( rc != -1 &&
 656                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 657         {
 658                 if ( rs->sr_rspoid != NULL ) {
 659                         rc = ber_printf( ber, "ts",
 660                                 rs->sr_type == REP_EXTENDED
 661                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 662                                 rs->sr_rspoid );
 663                 }
 664                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 665                         rc = ber_printf( ber, "tO",
 666                                 rs->sr_type == REP_EXTENDED
 667                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 668                                 rs->sr_rspdata );
 669                 }
 670         }
 671
 672         if( rc != -1 ) {
 673                 rc = ber_printf( ber, /*"{"*/ "N}" );
 674         }
 675
 676         if( rc != -1 ) {
 677                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 678         }
 679
 680         if( rc != -1 ) {
 681                 rc = ber_printf( ber, /*"{"*/ "N}" );
 682         }
 683
 684 #ifdef LDAP_CONNECTIONLESS
 685         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 686                 && rc != -1 )
 687         {
 688                 rc = ber_printf( ber, /*"{"*/ "N}" );
 689         }
 690 #endif
 691
 692         if ( rc == -1 ) {
 693                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 694
 695 #ifdef LDAP_CONNECTIONLESS
 696                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 697 #endif
 698                 {
 699                         ber_free_buf( ber );
 700                 }
 701                 goto cleanup;
 702         }
 703
 704         /* send BER */
 705         bytes = send_ldap_ber( op, ber );
 706 #ifdef LDAP_CONNECTIONLESS
 707         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 708 #endif
 709         {
 710                 ber_free_buf( ber );
 711         }
 712
 713         if ( bytes < 0 ) {
 714                 Debug( LDAP_DEBUG_ANY,
 715                         "send_ldap_response: ber write failed\n",
 716                         0, 0, 0 );
 717
 718                 goto cleanup;
 719         }
 720
 721         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 722         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 723         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 724         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 725
 726 cleanup:;
 727         /* Tell caller that we did this for real, as opposed to being
 728          * overridden by a callback
 729          */
 730         rc = SLAP_CB_CONTINUE;
 731
 732 clean2:;
 733         if ( op->o_callback ) {
 734                 (void)slap_cleanup_play( op, rs );
 735         }
 736
 737         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 738                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 739                 if ( rs->sr_matched ) {
 740                         free( (char *)rs->sr_matched );
 741                         rs->sr_matched = NULL;
 742                 }
 743         }
 744
 745         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 746                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 747                 if ( rs->sr_ref ) {
 748                         ber_bvarray_free( rs->sr_ref );
 749                         rs->sr_ref = NULL;
 750                 }
 751         }
 752
 753         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 754                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 755                 if ( rs->sr_ctrls ) {
 756                         slap_free_ctrls( op, rs->sr_ctrls );
 757                         rs->sr_ctrls = NULL;
 758                 }
 759         }
 760
 761         return rc;
 762 }
 763
 764
 765 void
 766 send_ldap_disconnect( Operation *op, SlapReply *rs )
 767 {
 768 #define LDAP_UNSOLICITED_ERROR(e) \
 769         (  (e) == LDAP_PROTOCOL_ERROR \
 770         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 771         || (e) == LDAP_UNAVAILABLE )
 772
 773         Debug( LDAP_DEBUG_TRACE,
 774                 "send_ldap_disconnect %d:%s\n",
 775                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 776         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 777
 778         /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
 779         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 780         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 781
 782         rs->sr_type = REP_EXTENDED;
 783         rs->sr_rspdata = NULL;
 784
 785         if ( op->o_protocol < LDAP_VERSION3 ) {
 786                 rs->sr_rspoid = NULL;
 787                 rs->sr_tag = slap_req2res( op->o_tag );
 788                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 789
 790         } else {
 791                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 792                 rs->sr_tag = LDAP_RES_EXTENDED;
 793                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 794         }
 795
 796         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 797                 Statslog( LDAP_DEBUG_STATS,
 798                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 799                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 800                         rs->sr_text ? rs->sr_text : "", 0 );
 801         }
 802 }
 803
 804 void
 805 slap_send_ldap_result( Operation *op, SlapReply *rs )
 806 {
 807         char *tmp = NULL;
 808         const char *otext = rs->sr_text;
 809         BerVarray oref = rs->sr_ref;
 810
 811         rs->sr_type = REP_RESULT;
 812
 813         /* Propagate Abandons so that cleanup callbacks can be processed */
 814         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 815                 goto abandon;
 816
 817         Debug( LDAP_DEBUG_TRACE,
 818                 "send_ldap_result: %s p=%d\n",
 819                 op->o_log_prefix, op->o_protocol, 0 );
 820         Debug( LDAP_DEBUG_ARGS,
 821                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 822                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 823                 rs->sr_text ? rs->sr_text : "" );
 824         if( rs->sr_ref ) {
 825                 Debug( LDAP_DEBUG_ARGS,
 826                         "send_ldap_result: referral=\"%s\"\n",
 827                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 828                         NULL, NULL );
 829         }
 830         assert( !LDAP_API_ERROR( rs->sr_err ) );
 831         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 832
 833         if ( rs->sr_err == LDAP_REFERRAL ) {
 834                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 835
 836                 if( rs->sr_ref == NULL ) {
 837                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 838                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 839                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 840                 }
 841         }
 842
 843         if ( op->o_protocol < LDAP_VERSION3 ) {
 844                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 845                 rs->sr_text = tmp;
 846                 rs->sr_ref = NULL;
 847         }
 848
 849 abandon:
 850         rs->sr_tag = slap_req2res( op->o_tag );
 851         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 852
 853         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 854                 if ( rs->sr_ref == NULL ) {
 855                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 856                         ber_bvarray_free( oref );
 857                 }
 858                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 859         }
 860
 861         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 862                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 863                         Statslog( LDAP_DEBUG_STATS,
 864                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 865                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 866                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 867                 } else {
 868                         Statslog( LDAP_DEBUG_STATS,
 869                                 "%s RESULT tag=%lu err=%d text=%s\n",
 870                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 871                                 rs->sr_text ? rs->sr_text : "", 0 );
 872                 }
 873         }
 874
 875         if( tmp != NULL ) ch_free(tmp);
 876         rs->sr_text = otext;
 877         rs->sr_ref = oref;
 878 }
 879
 880 void
 881 send_ldap_sasl( Operation *op, SlapReply *rs )
 882 {
 883         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 884                 rs->sr_err,
 885                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 886
 887         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 888         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 889
 890         rs->sr_type = REP_SASL;
 891         rs->sr_tag = slap_req2res( op->o_tag );
 892         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 893
 894         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 895                 Statslog( LDAP_DEBUG_STATS,
 896                         "%s RESULT tag=%lu err=%d text=%s\n",
 897                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 898                         rs->sr_text ? rs->sr_text : "", 0 );
 899         }
 900 }
 901
 902 void
 903 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 904 {
 905         Debug( LDAP_DEBUG_TRACE,
 906                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 907                 rs->sr_err,
 908                 rs->sr_rspoid ? rs->sr_rspoid : "",
 909                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 910
 911         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 912         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 913
 914         rs->sr_type = REP_EXTENDED;
 915         rs->sr_tag = slap_req2res( op->o_tag );
 916         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 917
 918         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 919                 Statslog( LDAP_DEBUG_STATS,
 920                         "%s RESULT oid=%s err=%d text=%s\n",
 921                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 922                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 923         }
 924 }
 925
 926 void
 927 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 928 {
 929         Debug( LDAP_DEBUG_TRACE,
 930                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 931                 rs->sr_err,
 932                 rs->sr_rspoid ? rs->sr_rspoid : "",
 933                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 934
 935         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 936         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 937
 938         rs->sr_type = REP_INTERMEDIATE;
 939         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 940         rs->sr_msgid = op->o_msgid;
 941         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 942                 Statslog( LDAP_DEBUG_STATS2,
 943                         "%s INTERM oid=%s\n",
 944                         op->o_log_prefix,
 945                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 946         }
 947 }
 948
 949 #define set_ldap_error( rs, err, text ) do { \
 950                 (rs)->sr_err = err; (rs)->sr_text = text; } while(0)
 951
 952 /*
 953  * returns:
 954  *
 955  * LDAP_SUCCESS                 entry sent
 956  * LDAP_OTHER                   entry not sent (other)
 957  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 958  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 959  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 960  */
 961
 962 int
 963 slap_send_search_entry( Operation *op, SlapReply *rs )
 964 {
 965         BerElementBuffer berbuf;
 966         BerElement      *ber = (BerElement *) &berbuf;
 967         Attribute       *a;
 968         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 969         int             userattrs;
 970         AccessControlState acl_state = ACL_STATE_INIT;
 971         int                      attrsonly;
 972         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 973
 974         /* a_flags: array of flags telling if the i-th element will be
 975          *          returned or filtered out
 976          * e_flags: array of a_flags
 977          */
 978         char **e_flags = NULL;
 979
 980         rs->sr_type = REP_SEARCH;
 981
 982         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 983                 rc = LDAP_SIZELIMIT_EXCEEDED;
 984                 goto error_return;
 985         }
 986
 987         /* Every 64 entries, check for thread pool pause */
 988         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 989                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 990         {
 991                 rc = LDAP_BUSY;
 992                 goto error_return;
 993         }
 994
 995         /* eventually will loop through generated operational attribute types
 996          * currently implemented types include:
 997          *      entryDN, subschemaSubentry, and hasSubordinates */
 998         /* NOTE: moved before overlays callback circling because
 999          * they may modify entry and other stuff in rs */
1000         /* check for special all operational attributes ("+") type */
1001         /* FIXME: maybe we could set this flag at the operation level;
1002          * however, in principle the caller of send_search_entry() may
1003          * change the attribute list at each call */
1004         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
1005
1006         rc = backend_operational( op, rs );
1007         if ( rc ) {
1008                 goto error_return;
1009         }
1010
1011         if ( op->o_callback ) {
1012                 rc = slap_response_play( op, rs );
1013                 if ( rc != SLAP_CB_CONTINUE ) {
1014                         goto error_return;
1015                 }
1016         }
1017
1018         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
1019                 op->o_connid, rs->sr_entry->e_name.bv_val,
1020                 op->ors_attrsonly ? " (attrsOnly)" : "" );
1021
1022         attrsonly = op->ors_attrsonly;
1023
1024         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
1025                 Debug( LDAP_DEBUG_ACL,
1026                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
1027                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
1028
1029                 rc = LDAP_INSUFFICIENT_ACCESS;
1030                 goto error_return;
1031         }
1032
1033         if ( op->o_res_ber ) {
1034                 /* read back control or LDAP_CONNECTIONLESS */
1035             ber = op->o_res_ber;
1036         } else {
1037                 struct berval   bv;
1038
1039                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1040                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1041
1042                 ber_init2( ber, &bv, LBER_USE_DER );
1043                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1044         }
1045
1046 #ifdef LDAP_CONNECTIONLESS
1047         if ( op->o_conn && op->o_conn->c_is_udp ) {
1048                 /* CONNECTIONLESS */
1049                 if ( op->o_protocol == LDAP_VERSION2 ) {
1050                 rc = ber_printf(ber, "t{O{" /*}}*/,
1051                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1052                 } else {
1053                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1054                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1055                 }
1056         } else
1057 #endif
1058         if ( op->o_res_ber ) {
1059                 /* read back control */
1060             rc = ber_printf( ber, "t{O{" /*}}*/,
1061                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1062         } else {
1063             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1064                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1065         }
1066
1067         if ( rc == -1 ) {
1068                 Debug( LDAP_DEBUG_ANY,
1069                         "send_search_entry: conn %lu  ber_printf failed\n",
1070                         op->o_connid, 0, 0 );
1071
1072                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1073                 set_ldap_error( rs, LDAP_OTHER, "encoding DN error" );
1074                 rc = rs->sr_err;
1075                 goto error_return;
1076         }
1077
1078         /* check for special all user attributes ("*") type */
1079         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
1080
1081         /* create an array of arrays of flags. Each flag corresponds
1082          * to particular value of attribute and equals 1 if value matches
1083          * to ValuesReturnFilter or 0 if not
1084          */
1085         if ( op->o_vrFilter != NULL ) {
1086                 int     k = 0;
1087                 size_t  size;
1088
1089                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1090                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1091                 }
1092
1093                 size = i * sizeof(char *) + k;
1094                 if ( size > 0 ) {
1095                         char    *a_flags;
1096                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1097                         if( e_flags == NULL ) {
1098                         Debug( LDAP_DEBUG_ANY,
1099                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1100                                         op->o_connid, 0, 0 );
1101                                 ber_free( ber, 1 );
1102
1103                                 set_ldap_error( rs, LDAP_OTHER, "out of memory" );
1104                                 goto error_return;
1105                         }
1106                         a_flags = (char *)(e_flags + i);
1107                         memset( a_flags, 0, k );
1108                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1109                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1110                                 e_flags[i] = a_flags;
1111                                 a_flags += j;
1112                         }
1113
1114                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1115                         if ( rc == -1 ) {
1116                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1117                                         "conn %lu matched values filtering failed\n",
1118                                         op->o_connid, 0, 0 );
1119                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1120                                 set_ldap_error( rs, LDAP_OTHER,
1121                                         "matched values filtering error" );
1122                                 rc = rs->sr_err;
1123                                 goto error_return;
1124                         }
1125                 }
1126         }
1127
1128         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1129                 AttributeDescription *desc = a->a_desc;
1130                 int finish = 0;
1131
1132                 if ( rs->sr_attrs == NULL ) {
1133                         /* all user attrs request, skip operational attributes */
1134                         if( is_at_operational( desc->ad_type ) ) {
1135                                 continue;
1136                         }
1137
1138                 } else {
1139                         /* specific attrs requested */
1140                         if ( is_at_operational( desc->ad_type ) ) {
1141                                 /* if not explicitly requested */
1142                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1143                                         /* if not all op attrs requested, skip */
1144                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1145                                                 continue;
1146                                         /* if DSA-specific and replicating, skip */
1147                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1148                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1149                                                 continue;
1150                                 }
1151                         } else {
1152                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1153                                         continue;
1154                                 }
1155                         }
1156                 }
1157
1158                 if ( attrsonly ) {
1159                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1160                                 ACL_READ, &acl_state ) )
1161                         {
1162                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1163                                         "conn %lu access to attribute %s not allowed\n",
1164                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1165                                 continue;
1166                         }
1167
1168                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1169                                 Debug( LDAP_DEBUG_ANY,
1170                                         "send_search_entry: conn %lu  ber_printf failed\n",
1171                                         op->o_connid, 0, 0 );
1172
1173                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1174                                 set_ldap_error( rs, LDAP_OTHER,
1175                                         "encoding description error");
1176                                 rc = rs->sr_err;
1177                                 goto error_return;
1178                         }
1179                         finish = 1;
1180
1181                 } else {
1182                         int first = 1;
1183                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1184                                 if ( ! access_allowed( op, rs->sr_entry,
1185                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1186                                 {
1187                                         Debug( LDAP_DEBUG_ACL,
1188                                                 "send_search_entry: conn %lu "
1189                                                 "access to attribute %s, value #%d not allowed\n",
1190                                                 op->o_connid, desc->ad_cname.bv_val, i );
1191
1192                                         continue;
1193                                 }
1194
1195                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1196                                         continue;
1197                                 }
1198
1199                                 if ( first ) {
1200                                         first = 0;
1201                                         finish = 1;
1202                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1203                                                 Debug( LDAP_DEBUG_ANY,
1204                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1205                                                         op->o_connid, 0, 0 );
1206
1207                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1208                                                 set_ldap_error( rs, LDAP_OTHER,
1209                                                         "encoding description error");
1210                                                 rc = rs->sr_err;
1211                                                 goto error_return;
1212                                         }
1213                                 }
1214                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1215                                         Debug( LDAP_DEBUG_ANY,
1216                                                 "send_search_entry: conn %lu  "
1217                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1218
1219                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1220                                         set_ldap_error( rs, LDAP_OTHER,
1221                                                 "encoding values error" );
1222                                         rc = rs->sr_err;
1223                                         goto error_return;
1224                                 }
1225                         }
1226                 }
1227
1228                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1229                         Debug( LDAP_DEBUG_ANY,
1230                                 "send_search_entry: conn %lu ber_printf failed\n",
1231                                 op->o_connid, 0, 0 );
1232
1233                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1234                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1235                         rc = rs->sr_err;
1236                         goto error_return;
1237                 }
1238         }
1239
1240         /* NOTE: moved before overlays callback circling because
1241          * they may modify entry and other stuff in rs */
1242         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1243                 int     k = 0;
1244                 size_t  size;
1245
1246                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1247                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1248                 }
1249
1250                 size = i * sizeof(char *) + k;
1251                 if ( size > 0 ) {
1252                         char    *a_flags, **tmp;
1253
1254                         /*
1255                          * Reuse previous memory - we likely need less space
1256                          * for operational attributes
1257                          */
1258                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1259                                 op->o_tmpmemctx );
1260                         if ( tmp == NULL ) {
1261                                 Debug( LDAP_DEBUG_ANY,
1262                                         "send_search_entry: conn %lu "
1263                                         "not enough memory "
1264                                         "for matched values filtering\n",
1265                                         op->o_connid, 0, 0 );
1266                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1267                                 set_ldap_error( rs, LDAP_OTHER,
1268                                         "not enough memory for matched values filtering" );
1269                                 goto error_return;
1270                         }
1271                         e_flags = tmp;
1272                         a_flags = (char *)(e_flags + i);
1273                         memset( a_flags, 0, k );
1274                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1275                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1276                                 e_flags[i] = a_flags;
1277                                 a_flags += j;
1278                         }
1279                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1280
1281                         if ( rc == -1 ) {
1282                                 Debug( LDAP_DEBUG_ANY,
1283                                         "send_search_entry: conn %lu "
1284                                         "matched values filtering failed\n",
1285                                         op->o_connid, 0, 0);
1286                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1287                                 set_ldap_error( rs, LDAP_OTHER,
1288                                         "matched values filtering error" );
1289                                 rc = rs->sr_err;
1290                                 goto error_return;
1291                         }
1292                 }
1293         }
1294
1295         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1296                 AttributeDescription *desc = a->a_desc;
1297
1298                 if ( rs->sr_attrs == NULL ) {
1299                         /* all user attrs request, skip operational attributes */
1300                         if( is_at_operational( desc->ad_type ) ) {
1301                                 continue;
1302                         }
1303
1304                 } else {
1305                         /* specific attrs requested */
1306                         if( is_at_operational( desc->ad_type ) ) {
1307                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1308                                         !ad_inlist( desc, rs->sr_attrs ) )
1309                                 {
1310                                         continue;
1311                                 }
1312                                 /* if DSA-specific and replicating, skip */
1313                                 if ( op->o_sync != SLAP_CONTROL_NONE &&
1314                                         desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1315                                         continue;
1316                         } else {
1317                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1318                                         continue;
1319                                 }
1320                         }
1321                 }
1322
1323                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1324                         ACL_READ, &acl_state ) )
1325                 {
1326                         Debug( LDAP_DEBUG_ACL,
1327                                 "send_search_entry: conn %lu "
1328                                 "access to attribute %s not allowed\n",
1329                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1330
1331                         continue;
1332                 }
1333
1334                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1335                 if ( rc == -1 ) {
1336                         Debug( LDAP_DEBUG_ANY,
1337                                 "send_search_entry: conn %lu  "
1338                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1339
1340                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1341                         set_ldap_error( rs, LDAP_OTHER,
1342                                 "encoding description error" );
1343                         rc = rs->sr_err;
1344                         goto error_return;
1345                 }
1346
1347                 if ( ! attrsonly ) {
1348                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1349                                 if ( ! access_allowed( op, rs->sr_entry,
1350                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1351                                 {
1352                                         Debug( LDAP_DEBUG_ACL,
1353                                                 "send_search_entry: conn %lu "
1354                                                 "access to %s, value %d not allowed\n",
1355                                                 op->o_connid, desc->ad_cname.bv_val, i );
1356
1357                                         continue;
1358                                 }
1359
1360                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1361                                         continue;
1362                                 }
1363
1364                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1365                                         Debug( LDAP_DEBUG_ANY,
1366                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1367                                                 op->o_connid, 0, 0 );
1368
1369                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1370                                         set_ldap_error( rs, LDAP_OTHER,
1371                                                 "encoding values error" );
1372                                         rc = rs->sr_err;
1373                                         goto error_return;
1374                                 }
1375                         }
1376                 }
1377
1378                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1379                         Debug( LDAP_DEBUG_ANY,
1380                                 "send_search_entry: conn %lu  ber_printf failed\n",
1381                                 op->o_connid, 0, 0 );
1382
1383                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1384                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1385                         rc = rs->sr_err;
1386                         goto error_return;
1387                 }
1388         }
1389
1390         /* free e_flags */
1391         if ( e_flags ) {
1392                 slap_sl_free( e_flags, op->o_tmpmemctx );
1393                 e_flags = NULL;
1394         }
1395
1396         rc = ber_printf( ber, /*{{*/ "}N}" );
1397
1398         if( rc != -1 ) {
1399                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1400         }
1401
1402         if( rc != -1 ) {
1403 #ifdef LDAP_CONNECTIONLESS
1404                 if( op->o_conn && op->o_conn->c_is_udp ) {
1405                         if ( op->o_protocol != LDAP_VERSION2 ) {
1406                                 rc = ber_printf( ber, /*{*/ "N}" );
1407                         }
1408                 } else
1409 #endif
1410                 if ( op->o_res_ber == NULL ) {
1411                         rc = ber_printf( ber, /*{*/ "N}" );
1412                 }
1413         }
1414
1415         if ( rc == -1 ) {
1416                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1417
1418                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1419                 set_ldap_error( rs, LDAP_OTHER, "encode entry end error" );
1420                 rc = rs->sr_err;
1421                 goto error_return;
1422         }
1423
1424         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1425             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1426
1427         rs_flush_entry( op, rs, NULL );
1428
1429         if ( op->o_res_ber == NULL ) {
1430                 bytes = send_ldap_ber( op, ber );
1431                 ber_free_buf( ber );
1432
1433                 if ( bytes < 0 ) {
1434                         Debug( LDAP_DEBUG_ANY,
1435                                 "send_search_entry: conn %lu  ber write failed.\n",
1436                                 op->o_connid, 0, 0 );
1437
1438                         rc = LDAP_UNAVAILABLE;
1439                         goto error_return;
1440                 }
1441                 rs->sr_nentries++;
1442
1443                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1444                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1445                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1446                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1447                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1448         }
1449
1450         Debug( LDAP_DEBUG_TRACE,
1451                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1452
1453         rc = LDAP_SUCCESS;
1454
1455 error_return:;
1456         if ( op->o_callback ) {
1457                 (void)slap_cleanup_play( op, rs );
1458         }
1459
1460         if ( e_flags ) {
1461                 slap_sl_free( e_flags, op->o_tmpmemctx );
1462         }
1463
1464         /* FIXME: Can break if rs now contains an extended response */
1465         if ( rs->sr_operational_attrs ) {
1466                 attrs_free( rs->sr_operational_attrs );
1467                 rs->sr_operational_attrs = NULL;
1468         }
1469         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1470
1471         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1472                 rs_flush_entry( op, rs, NULL );
1473         } else {
1474                 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
1475         }
1476
1477         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1478                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1479                 if ( rs->sr_ctrls ) {
1480                         slap_free_ctrls( op, rs->sr_ctrls );
1481                         rs->sr_ctrls = NULL;
1482                 }
1483         }
1484
1485         return( rc );
1486 }
1487
1488 int
1489 slap_send_search_reference( Operation *op, SlapReply *rs )
1490 {
1491         BerElementBuffer berbuf;
1492         BerElement      *ber = (BerElement *) &berbuf;
1493         int rc = 0;
1494         int bytes;
1495         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1496
1497         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1498         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1499
1500         rs->sr_type = REP_SEARCHREF;
1501         if ( op->o_callback ) {
1502                 rc = slap_response_play( op, rs );
1503                 if ( rc != SLAP_CB_CONTINUE ) {
1504                         goto rel;
1505                 }
1506         }
1507
1508         Debug( LDAP_DEBUG_TRACE,
1509                 "=> send_search_reference: dn=\"%s\"\n",
1510                 edn, 0, 0 );
1511
1512         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1513                 ad_entry, NULL, ACL_READ, NULL ) )
1514         {
1515                 Debug( LDAP_DEBUG_ACL,
1516                         "send_search_reference: access to entry not allowed\n",
1517                     0, 0, 0 );
1518                 rc = 1;
1519                 goto rel;
1520         }
1521
1522         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1523                 ad_ref, NULL, ACL_READ, NULL ) )
1524         {
1525                 Debug( LDAP_DEBUG_ACL,
1526                         "send_search_reference: access "
1527                         "to reference not allowed\n",
1528                     0, 0, 0 );
1529                 rc = 1;
1530                 goto rel;
1531         }
1532
1533         if( op->o_domain_scope ) {
1534                 Debug( LDAP_DEBUG_ANY,
1535                         "send_search_reference: domainScope control in (%s)\n",
1536                         edn, 0, 0 );
1537                 rc = 0;
1538                 goto rel;
1539         }
1540
1541         if( rs->sr_ref == NULL ) {
1542                 Debug( LDAP_DEBUG_ANY,
1543                         "send_search_reference: null ref in (%s)\n",
1544                         edn, 0, 0 );
1545                 rc = 1;
1546                 goto rel;
1547         }
1548
1549         if( op->o_protocol < LDAP_VERSION3 ) {
1550                 rc = 0;
1551                 /* save the references for the result */
1552                 if( rs->sr_ref[0].bv_val != NULL ) {
1553                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1554                                 rc = LDAP_OTHER;
1555                 }
1556                 goto rel;
1557         }
1558
1559 #ifdef LDAP_CONNECTIONLESS
1560         if( op->o_conn && op->o_conn->c_is_udp ) {
1561                 ber = op->o_res_ber;
1562         } else
1563 #endif
1564         {
1565                 ber_init_w_nullc( ber, LBER_USE_DER );
1566                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1567         }
1568
1569         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1570                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1571
1572         if( rc != -1 ) {
1573                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1574         }
1575
1576         if( rc != -1 ) {
1577                 rc = ber_printf( ber, /*"{"*/ "N}" );
1578         }
1579
1580         if ( rc == -1 ) {
1581                 Debug( LDAP_DEBUG_ANY,
1582                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1583
1584 #ifdef LDAP_CONNECTIONLESS
1585                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1586 #endif
1587                 ber_free_buf( ber );
1588                 set_ldap_error( rs, LDAP_OTHER, "encode DN error" );
1589                 goto rel;
1590         }
1591
1592         rc = 0;
1593         rs_flush_entry( op, rs, NULL );
1594
1595 #ifdef LDAP_CONNECTIONLESS
1596         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1597 #endif
1598         bytes = send_ldap_ber( op, ber );
1599         ber_free_buf( ber );
1600
1601         if ( bytes < 0 ) {
1602                 rc = LDAP_UNAVAILABLE;
1603         } else {
1604                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1605                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1606                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1607                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1608                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1609         }
1610 #ifdef LDAP_CONNECTIONLESS
1611         }
1612 #endif
1613         if ( rs->sr_ref != NULL ) {
1614                 int     r;
1615
1616                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1617                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1618                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1619                                 0, 0 );
1620                 }
1621
1622         } else {
1623                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1624                         op->o_log_prefix, 0, 0, 0, 0 );
1625         }
1626
1627         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1628
1629         if ( 0 ) {
1630 rel:
1631             rs_flush_entry( op, rs, NULL );
1632         }
1633
1634         if ( op->o_callback ) {
1635                 (void)slap_cleanup_play( op, rs );
1636         }
1637
1638         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1639                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1640                 if ( rs->sr_ctrls ) {
1641                         slap_free_ctrls( op, rs->sr_ctrls );
1642                         rs->sr_ctrls = NULL;
1643                 }
1644         }
1645
1646         return rc;
1647 }
1648
1649 int
1650 str2result(
1651     char        *s,
1652     int         *code,
1653     char        **matched,
1654     char        **info )
1655 {
1656         int     rc;
1657         char    *c;
1658
1659         *code = LDAP_SUCCESS;
1660         *matched = NULL;
1661         *info = NULL;
1662
1663         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1664                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1665                     s, 0, 0 );
1666
1667                 return( -1 );
1668         }
1669
1670         rc = 0;
1671         while ( (s = strchr( s, '\n' )) != NULL ) {
1672                 *s++ = '\0';
1673                 if ( *s == '\0' ) {
1674                         break;
1675                 }
1676                 if ( (c = strchr( s, ':' )) != NULL ) {
1677                         c++;
1678                 }
1679
1680                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1681                         char    *next = NULL;
1682                         long    retcode;
1683
1684                         if ( c == NULL ) {
1685                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1686                                     s, 0, 0 );
1687                                 rc = -1;
1688                                 continue;
1689                         }
1690
1691                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1692                         if ( c[ 0 ] == '\0' ) {
1693                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1694                                     s, 0, 0 );
1695                                 rc = -1;
1696                                 continue;
1697                         }
1698
1699                         retcode = strtol( c, &next, 10 );
1700                         if ( next == NULL || next == c ) {
1701                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1702                                     s, 0, 0 );
1703                                 rc = -1;
1704                                 continue;
1705                         }
1706
1707                         while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
1708                                 next++;
1709                         if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
1710                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1711                                     s, 0, 0 );
1712                                 rc = -1;
1713                                 continue;
1714                         }
1715
1716                         /* FIXME: what if it's larger than max int? */
1717                         *code = (int)retcode;
1718
1719                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1720                         if ( c != NULL ) {
1721                                 *matched = c;
1722                         }
1723                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1724                         if ( c != NULL ) {
1725                                 *info = c;
1726                         }
1727                 } else {
1728                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1729                             s, 0, 0 );
1730
1731                         rc = -1;
1732                 }
1733         }
1734
1735         return( rc );
1736 }
1737
1738 int slap_read_controls(
1739         Operation *op,
1740         SlapReply *rs,
1741         Entry *e,
1742         const struct berval *oid,
1743         LDAPControl **ctrl )
1744 {
1745         int rc;
1746         struct berval bv;
1747         BerElementBuffer berbuf;
1748         BerElement *ber = (BerElement *) &berbuf;
1749         LDAPControl c;
1750         Operation myop;
1751
1752         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1753                 op->o_log_prefix, oid->bv_val, e->e_dn );
1754
1755         rs->sr_entry = e;
1756         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1757                 op->o_preread_attrs : op->o_postread_attrs;
1758
1759         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1760         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1761
1762         ber_init2( ber, &bv, LBER_USE_DER );
1763         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1764
1765         /* create new operation */
1766         myop = *op;
1767         /* FIXME: o_bd needed for ACL */
1768         myop.o_bd = op->o_bd;
1769         myop.o_res_ber = ber;
1770         myop.o_callback = NULL;
1771         myop.ors_slimit = 1;
1772         myop.ors_attrsonly = 0;
1773
1774         rc = slap_send_search_entry( &myop, rs );
1775         if( rc ) return rc;
1776
1777         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1778
1779         if( rc == -1 ) return LDAP_OTHER;
1780
1781         c.ldctl_oid = oid->bv_val;
1782         c.ldctl_iscritical = 0;
1783
1784         if ( *ctrl == NULL ) {
1785                 /* first try */
1786                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1787         } else {
1788                 /* retry: free previous try */
1789                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1790         }
1791
1792         **ctrl = c;
1793         return LDAP_SUCCESS;
1794 }
1795
1796 /* Map API errors to protocol errors... */
1797 int
1798 slap_map_api2result( SlapReply *rs )
1799 {
1800         switch(rs->sr_err) {
1801         case LDAP_SERVER_DOWN:
1802                 return LDAP_UNAVAILABLE;
1803         case LDAP_LOCAL_ERROR:
1804                 return LDAP_OTHER;
1805         case LDAP_ENCODING_ERROR:
1806         case LDAP_DECODING_ERROR:
1807                 return LDAP_PROTOCOL_ERROR;
1808         case LDAP_TIMEOUT:
1809                 return LDAP_UNAVAILABLE;
1810         case LDAP_AUTH_UNKNOWN:
1811                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1812         case LDAP_FILTER_ERROR:
1813                 rs->sr_text = "Filter error";
1814                 return LDAP_OTHER;
1815         case LDAP_USER_CANCELLED:
1816                 rs->sr_text = "User cancelled";
1817                 return LDAP_OTHER;
1818         case LDAP_PARAM_ERROR:
1819                 return LDAP_PROTOCOL_ERROR;
1820         case LDAP_NO_MEMORY:
1821                 return LDAP_OTHER;
1822         case LDAP_CONNECT_ERROR:
1823                 return LDAP_UNAVAILABLE;
1824         case LDAP_NOT_SUPPORTED:
1825                 return LDAP_UNWILLING_TO_PERFORM;
1826         case LDAP_CONTROL_NOT_FOUND:
1827                 return LDAP_PROTOCOL_ERROR;
1828         case LDAP_NO_RESULTS_RETURNED:
1829                 return LDAP_NO_SUCH_OBJECT;
1830         case LDAP_MORE_RESULTS_TO_RETURN:
1831                 rs->sr_text = "More results to return";
1832                 return LDAP_OTHER;
1833         case LDAP_CLIENT_LOOP:
1834         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1835                 return LDAP_LOOP_DETECT;
1836         default:
1837                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1838                 return rs->sr_err;
1839         }
1840 }
1841
1842
1843 slap_mask_t
1844 slap_attr_flags( AttributeName *an )
1845 {
1846         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1847
1848         if ( an == NULL ) {
1849                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1850
1851         } else {
1852                 flags |= an_find( an, slap_bv_all_operational_attrs )
1853                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1854                 flags |= an_find( an, slap_bv_all_user_attrs )
1855                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1856         }
1857
1858         return flags;
1859 }