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 1998-2012 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_pool_idle( &connection_pool );
 373                 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
 374                 conn->c_writewaiter = 0;
 375                 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
 376                 ldap_pvt_thread_pool_unidle( &connection_pool );
 377                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 378                 if ( conn->c_writers < 0 ) {
 379                         ret = 0;
 380                         break;
 381                 }
 382         }
 383
 384         conn->c_writing = 0;
 385         if ( conn->c_writers < 0 ) {
 386                 conn->c_writers++;
 387                 if ( !conn->c_writers )
 388                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 389         } else {
 390                 conn->c_writers--;
 391                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 392         }
 393         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 394
 395         return ret;
 396 }
 397
 398 static int
 399 send_ldap_control( BerElement *ber, LDAPControl *c )
 400 {
 401         int rc;
 402
 403         assert( c != NULL );
 404
 405         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 406
 407         if( c->ldctl_iscritical ) {
 408                 rc = ber_printf( ber, "b",
 409                         (ber_int_t) c->ldctl_iscritical ) ;
 410                 if( rc == -1 ) return rc;
 411         }
 412
 413         if( c->ldctl_value.bv_val != NULL ) {
 414                 rc = ber_printf( ber, "O", &c->ldctl_value );
 415                 if( rc == -1 ) return rc;
 416         }
 417
 418         rc = ber_printf( ber, /*{*/"N}" );
 419         if( rc == -1 ) return rc;
 420
 421         return 0;
 422 }
 423
 424 static int
 425 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 426 {
 427         int rc;
 428
 429         if( c == NULL )
 430                 return 0;
 431
 432         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 433         if( rc == -1 ) return rc;
 434
 435         for( ; *c != NULL; c++) {
 436                 rc = send_ldap_control( ber, *c );
 437                 if( rc == -1 ) return rc;
 438         }
 439
 440 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 441         /* this is a hack to avoid having to modify op->s_ctrls */
 442         if( o->o_sortedresults ) {
 443                 BerElementBuffer berbuf;
 444                 BerElement *sber = (BerElement *) &berbuf;
 445                 LDAPControl sorted;
 446                 BER_BVZERO( &sorted.ldctl_value );
 447                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 448                 sorted.ldctl_iscritical = 0;
 449
 450                 ber_init2( sber, NULL, LBER_USE_DER );
 451
 452                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 453
 454                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 455                         return -1;
 456                 }
 457
 458                 (void) ber_free_buf( sber );
 459
 460                 rc = send_ldap_control( ber, &sorted );
 461                 if( rc == -1 ) return rc;
 462         }
 463 #endif
 464
 465         rc = ber_printf( ber, /*{*/"N}" );
 466
 467         return rc;
 468 }
 469
 470 /*
 471  * slap_response_play()
 472  *
 473  * plays the callback list; rationale: a callback can
 474  *   - remove itself from the list, by setting op->o_callback = NULL;
 475  *     malloc()'ed callbacks should free themselves from inside the
 476  *     sc_response() function.
 477  *   - replace itself with another (list of) callback(s), by setting
 478  *     op->o_callback = a new (list of) callback(s); in this case, it
 479  *     is the callback's responsibility to to append existing subsequent
 480  *     callbacks to the end of the list that is passed to the sc_response()
 481  *     function.
 482  *   - modify the list of subsequent callbacks by modifying the value
 483  *     of the sc_next field from inside the sc_response() function; this
 484  *     case does not require any handling from inside slap_response_play()
 485  *
 486  * To stop execution of the playlist, the sc_response() function must return
 487  * a value different from SLAP_SC_CONTINUE.
 488  *
 489  * The same applies to slap_cleanup_play(); only, there is no means to stop
 490  * execution of the playlist, since all cleanup functions must be called.
 491  */
 492 static int
 493 slap_response_play(
 494         Operation *op,
 495         SlapReply *rs )
 496 {
 497         int rc;
 498
 499         slap_callback   *sc = op->o_callback, **scp;
 500
 501         rc = SLAP_CB_CONTINUE;
 502         for ( scp = &sc; *scp; ) {
 503                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 504
 505                 op->o_callback = *scp;
 506                 if ( op->o_callback->sc_response ) {
 507                         rc = op->o_callback->sc_response( op, rs );
 508                         if ( op->o_callback == NULL ) {
 509                                 /* the callback has been removed;
 510                                  * repair the list */
 511                                 *scp = sc_next;
 512                                 sc_nextp = scp;
 513
 514                         } else if ( op->o_callback != *scp ) {
 515                                 /* a new callback has been inserted
 516                                  * in place of the existing one; repair the list */
 517                                 *scp = op->o_callback;
 518                                 sc_nextp = scp;
 519                         }
 520                         if ( rc != SLAP_CB_CONTINUE ) break;
 521                 }
 522                 scp = sc_nextp;
 523         }
 524
 525         op->o_callback = sc;
 526         return rc;
 527 }
 528
 529 static int
 530 slap_cleanup_play(
 531         Operation *op,
 532         SlapReply *rs )
 533 {
 534         slap_callback   *sc = op->o_callback, **scp;
 535
 536         for ( scp = &sc; *scp; ) {
 537                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 538
 539                 op->o_callback = *scp;
 540                 if ( op->o_callback->sc_cleanup ) {
 541                         (void)op->o_callback->sc_cleanup( op, rs );
 542                         if ( op->o_callback == NULL ) {
 543                                 /* the callback has been removed;
 544                                  * repair the list */
 545                                 *scp = sc_next;
 546                                 sc_nextp = scp;
 547
 548                         } else if ( op->o_callback != *scp ) {
 549                                 /* a new callback has been inserted
 550                                  * after the existing one; repair the list */
 551                                 /* a new callback has been inserted
 552                                  * in place of the existing one; repair the list */
 553                                 *scp = op->o_callback;
 554                                 sc_nextp = scp;
 555                         }
 556                         /* don't care about the result; do all cleanup */
 557                 }
 558                 scp = sc_nextp;
 559         }
 560
 561         op->o_callback = sc;
 562         return LDAP_SUCCESS;
 563 }
 564
 565 static int
 566 send_ldap_response(
 567         Operation *op,
 568         SlapReply *rs )
 569 {
 570         BerElementBuffer berbuf;
 571         BerElement      *ber = (BerElement *) &berbuf;
 572         int             rc = LDAP_SUCCESS;
 573         long    bytes;
 574
 575         /* op was actually aborted, bypass everything if client didn't Cancel */
 576         if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
 577                 rc = SLAPD_ABANDON;
 578                 goto clean2;
 579         }
 580
 581         if ( op->o_callback ) {
 582                 rc = slap_response_play( op, rs );
 583                 if ( rc != SLAP_CB_CONTINUE ) {
 584                         goto clean2;
 585                 }
 586         }
 587
 588         /* op completed, connection aborted, bypass sending response */
 589         if ( op->o_abandon && !op->o_cancel ) {
 590                 rc = SLAPD_ABANDON;
 591                 goto clean2;
 592         }
 593
 594 #ifdef LDAP_CONNECTIONLESS
 595         if (op->o_conn && op->o_conn->c_is_udp)
 596                 ber = op->o_res_ber;
 597         else
 598 #endif
 599         {
 600                 ber_init_w_nullc( ber, LBER_USE_DER );
 601                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 602         }
 603
 604         rc = rs->sr_err;
 605         if ( rc == SLAPD_ABANDON && op->o_cancel )
 606                 rc = LDAP_CANCELLED;
 607
 608         Debug( LDAP_DEBUG_TRACE,
 609                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 610                 rs->sr_msgid, rs->sr_tag, rc );
 611
 612         if( rs->sr_ref ) {
 613                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 614                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 615                         NULL, NULL );
 616         }
 617
 618 #ifdef LDAP_CONNECTIONLESS
 619         if (op->o_conn && op->o_conn->c_is_udp &&
 620                 op->o_protocol == LDAP_VERSION2 )
 621         {
 622                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 623                         rs->sr_tag, rc,
 624                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 625                 rs->sr_text == NULL ? "" : rs->sr_text );
 626         } else
 627 #endif
 628         if ( rs->sr_type == REP_INTERMEDIATE ) {
 629             rc = ber_printf( ber, "{it{" /*"}}"*/,
 630                         rs->sr_msgid, rs->sr_tag );
 631
 632         } else {
 633             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 634                 rs->sr_msgid, rs->sr_tag, rc,
 635                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 636                 rs->sr_text == NULL ? "" : rs->sr_text );
 637         }
 638
 639         if( rc != -1 ) {
 640                 if ( rs->sr_ref != NULL ) {
 641                         assert( rs->sr_err == LDAP_REFERRAL );
 642                         rc = ber_printf( ber, "t{W}",
 643                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 644                 } else {
 645                         assert( rs->sr_err != LDAP_REFERRAL );
 646                 }
 647         }
 648
 649         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 650                 rc = ber_printf( ber, "tO",
 651                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 652         }
 653
 654         if( rc != -1 &&
 655                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 656         {
 657                 if ( rs->sr_rspoid != NULL ) {
 658                         rc = ber_printf( ber, "ts",
 659                                 rs->sr_type == REP_EXTENDED
 660                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 661                                 rs->sr_rspoid );
 662                 }
 663                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 664                         rc = ber_printf( ber, "tO",
 665                                 rs->sr_type == REP_EXTENDED
 666                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 667                                 rs->sr_rspdata );
 668                 }
 669         }
 670
 671         if( rc != -1 ) {
 672                 rc = ber_printf( ber, /*"{"*/ "N}" );
 673         }
 674
 675         if( rc != -1 ) {
 676                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 677         }
 678
 679         if( rc != -1 ) {
 680                 rc = ber_printf( ber, /*"{"*/ "N}" );
 681         }
 682
 683 #ifdef LDAP_CONNECTIONLESS
 684         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 685                 && rc != -1 )
 686         {
 687                 rc = ber_printf( ber, /*"{"*/ "N}" );
 688         }
 689 #endif
 690
 691         if ( rc == -1 ) {
 692                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 693
 694 #ifdef LDAP_CONNECTIONLESS
 695                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 696 #endif
 697                 {
 698                         ber_free_buf( ber );
 699                 }
 700                 goto cleanup;
 701         }
 702
 703         /* send BER */
 704         bytes = send_ldap_ber( op, ber );
 705 #ifdef LDAP_CONNECTIONLESS
 706         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 707 #endif
 708         {
 709                 ber_free_buf( ber );
 710         }
 711
 712         if ( bytes < 0 ) {
 713                 Debug( LDAP_DEBUG_ANY,
 714                         "send_ldap_response: ber write failed\n",
 715                         0, 0, 0 );
 716
 717                 goto cleanup;
 718         }
 719
 720         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 721         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 722         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 723         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 724
 725 cleanup:;
 726         /* Tell caller that we did this for real, as opposed to being
 727          * overridden by a callback
 728          */
 729         rc = SLAP_CB_CONTINUE;
 730
 731 clean2:;
 732         if ( op->o_callback ) {
 733                 (void)slap_cleanup_play( op, rs );
 734         }
 735
 736         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 737                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 738                 if ( rs->sr_matched ) {
 739                         free( (char *)rs->sr_matched );
 740                         rs->sr_matched = NULL;
 741                 }
 742         }
 743
 744         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 745                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 746                 if ( rs->sr_ref ) {
 747                         ber_bvarray_free( rs->sr_ref );
 748                         rs->sr_ref = NULL;
 749                 }
 750         }
 751
 752         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 753                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 754                 if ( rs->sr_ctrls ) {
 755                         slap_free_ctrls( op, rs->sr_ctrls );
 756                         rs->sr_ctrls = NULL;
 757                 }
 758         }
 759
 760         return rc;
 761 }
 762
 763
 764 void
 765 send_ldap_disconnect( Operation *op, SlapReply *rs )
 766 {
 767 #define LDAP_UNSOLICITED_ERROR(e) \
 768         (  (e) == LDAP_PROTOCOL_ERROR \
 769         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 770         || (e) == LDAP_UNAVAILABLE )
 771
 772         Debug( LDAP_DEBUG_TRACE,
 773                 "send_ldap_disconnect %d:%s\n",
 774                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 775         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 776
 777         /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
 778         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 779         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 780
 781         rs->sr_type = REP_EXTENDED;
 782         rs->sr_rspdata = NULL;
 783
 784         if ( op->o_protocol < LDAP_VERSION3 ) {
 785                 rs->sr_rspoid = NULL;
 786                 rs->sr_tag = slap_req2res( op->o_tag );
 787                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 788
 789         } else {
 790                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 791                 rs->sr_tag = LDAP_RES_EXTENDED;
 792                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 793         }
 794
 795         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 796                 Statslog( LDAP_DEBUG_STATS,
 797                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 798                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 799                         rs->sr_text ? rs->sr_text : "", 0 );
 800         }
 801 }
 802
 803 void
 804 slap_send_ldap_result( Operation *op, SlapReply *rs )
 805 {
 806         char *tmp = NULL;
 807         const char *otext = rs->sr_text;
 808         BerVarray oref = rs->sr_ref;
 809
 810         rs->sr_type = REP_RESULT;
 811
 812         /* Propagate Abandons so that cleanup callbacks can be processed */
 813         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 814                 goto abandon;
 815
 816         Debug( LDAP_DEBUG_TRACE,
 817                 "send_ldap_result: %s p=%d\n",
 818                 op->o_log_prefix, op->o_protocol, 0 );
 819         Debug( LDAP_DEBUG_ARGS,
 820                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 821                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 822                 rs->sr_text ? rs->sr_text : "" );
 823         if( rs->sr_ref ) {
 824                 Debug( LDAP_DEBUG_ARGS,
 825                         "send_ldap_result: referral=\"%s\"\n",
 826                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 827                         NULL, NULL );
 828         }
 829         assert( !LDAP_API_ERROR( rs->sr_err ) );
 830         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 831
 832         if ( rs->sr_err == LDAP_REFERRAL ) {
 833                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 834
 835                 if( rs->sr_ref == NULL ) {
 836                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 837                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 838                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 839                 }
 840         }
 841
 842         if ( op->o_protocol < LDAP_VERSION3 ) {
 843                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 844                 rs->sr_text = tmp;
 845                 rs->sr_ref = NULL;
 846         }
 847
 848 abandon:
 849         rs->sr_tag = slap_req2res( op->o_tag );
 850         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 851
 852         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 853                 if ( rs->sr_ref == NULL ) {
 854                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 855                         ber_bvarray_free( oref );
 856                 }
 857                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 858         }
 859
 860         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 861                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 862                         Statslog( LDAP_DEBUG_STATS,
 863                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 864                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 865                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 866                 } else {
 867                         Statslog( LDAP_DEBUG_STATS,
 868                                 "%s RESULT tag=%lu err=%d text=%s\n",
 869                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 870                                 rs->sr_text ? rs->sr_text : "", 0 );
 871                 }
 872         }
 873
 874         if( tmp != NULL ) ch_free(tmp);
 875         rs->sr_text = otext;
 876         rs->sr_ref = oref;
 877 }
 878
 879 void
 880 send_ldap_sasl( Operation *op, SlapReply *rs )
 881 {
 882         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 883                 rs->sr_err,
 884                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 885
 886         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 887         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 888
 889         rs->sr_type = REP_SASL;
 890         rs->sr_tag = slap_req2res( op->o_tag );
 891         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 892
 893         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 894                 Statslog( LDAP_DEBUG_STATS,
 895                         "%s RESULT tag=%lu err=%d text=%s\n",
 896                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 897                         rs->sr_text ? rs->sr_text : "", 0 );
 898         }
 899 }
 900
 901 void
 902 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 903 {
 904         Debug( LDAP_DEBUG_TRACE,
 905                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 906                 rs->sr_err,
 907                 rs->sr_rspoid ? rs->sr_rspoid : "",
 908                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 909
 910         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 911         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 912
 913         rs->sr_type = REP_EXTENDED;
 914         rs->sr_tag = slap_req2res( op->o_tag );
 915         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 916
 917         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 918                 Statslog( LDAP_DEBUG_STATS,
 919                         "%s RESULT oid=%s err=%d text=%s\n",
 920                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 921                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 922         }
 923 }
 924
 925 void
 926 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 927 {
 928         Debug( LDAP_DEBUG_TRACE,
 929                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 930                 rs->sr_err,
 931                 rs->sr_rspoid ? rs->sr_rspoid : "",
 932                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 933
 934         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 935         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 936
 937         rs->sr_type = REP_INTERMEDIATE;
 938         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 939         rs->sr_msgid = op->o_msgid;
 940         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 941                 Statslog( LDAP_DEBUG_STATS2,
 942                         "%s INTERM oid=%s\n",
 943                         op->o_log_prefix,
 944                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 945         }
 946 }
 947
 948 /*
 949  * returns:
 950  *
 951  * LDAP_SUCCESS                 entry sent
 952  * LDAP_OTHER                   entry not sent (other)
 953  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 954  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 955  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 956  */
 957
 958 int
 959 slap_send_search_entry( Operation *op, SlapReply *rs )
 960 {
 961         BerElementBuffer berbuf;
 962         BerElement      *ber = (BerElement *) &berbuf;
 963         Attribute       *a;
 964         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 965         int             userattrs;
 966         AccessControlState acl_state = ACL_STATE_INIT;
 967         int                      attrsonly;
 968         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 969
 970         /* a_flags: array of flags telling if the i-th element will be
 971          *          returned or filtered out
 972          * e_flags: array of a_flags
 973          */
 974         char **e_flags = NULL;
 975
 976         rs->sr_type = REP_SEARCH;
 977
 978         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 979                 rc = LDAP_SIZELIMIT_EXCEEDED;
 980                 goto error_return;
 981         }
 982
 983         /* Every 64 entries, check for thread pool pause */
 984         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 985                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 986         {
 987                 rc = LDAP_BUSY;
 988                 goto error_return;
 989         }
 990
 991         /* eventually will loop through generated operational attribute types
 992          * currently implemented types include:
 993          *      entryDN, subschemaSubentry, and hasSubordinates */
 994         /* NOTE: moved before overlays callback circling because
 995          * they may modify entry and other stuff in rs */
 996         /* check for special all operational attributes ("+") type */
 997         /* FIXME: maybe we could set this flag at the operation level;
 998          * however, in principle the caller of send_search_entry() may
 999          * change the attribute list at each call */
1000         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
1001
1002         rc = backend_operational( op, rs );
1003         if ( rc ) {
1004                 goto error_return;
1005         }
1006
1007         if ( op->o_callback ) {
1008                 rc = slap_response_play( op, rs );
1009                 if ( rc != SLAP_CB_CONTINUE ) {
1010                         goto error_return;
1011                 }
1012         }
1013
1014         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
1015                 op->o_connid, rs->sr_entry->e_name.bv_val,
1016                 op->ors_attrsonly ? " (attrsOnly)" : "" );
1017
1018         attrsonly = op->ors_attrsonly;
1019
1020         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
1021                 Debug( LDAP_DEBUG_ACL,
1022                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
1023                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
1024
1025                 rc = LDAP_INSUFFICIENT_ACCESS;
1026                 goto error_return;
1027         }
1028
1029         if ( op->o_res_ber ) {
1030                 /* read back control or LDAP_CONNECTIONLESS */
1031             ber = op->o_res_ber;
1032         } else {
1033                 struct berval   bv;
1034
1035                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1036                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1037
1038                 ber_init2( ber, &bv, LBER_USE_DER );
1039                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1040         }
1041
1042 #ifdef LDAP_CONNECTIONLESS
1043         if ( op->o_conn && op->o_conn->c_is_udp ) {
1044                 /* CONNECTIONLESS */
1045                 if ( op->o_protocol == LDAP_VERSION2 ) {
1046                 rc = ber_printf(ber, "t{O{" /*}}*/,
1047                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1048                 } else {
1049                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1050                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1051                 }
1052         } else
1053 #endif
1054         if ( op->o_res_ber ) {
1055                 /* read back control */
1056             rc = ber_printf( ber, "t{O{" /*}}*/,
1057                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1058         } else {
1059             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1060                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1061         }
1062
1063         if ( rc == -1 ) {
1064                 Debug( LDAP_DEBUG_ANY,
1065                         "send_search_entry: conn %lu  ber_printf failed\n",
1066                         op->o_connid, 0, 0 );
1067
1068                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1069                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
1070                 rc = rs->sr_err;
1071                 goto error_return;
1072         }
1073
1074         /* check for special all user attributes ("*") type */
1075         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
1076
1077         /* create an array of arrays of flags. Each flag corresponds
1078          * to particular value of attribute and equals 1 if value matches
1079          * to ValuesReturnFilter or 0 if not
1080          */
1081         if ( op->o_vrFilter != NULL ) {
1082                 int     k = 0;
1083                 size_t  size;
1084
1085                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1086                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1087                 }
1088
1089                 size = i * sizeof(char *) + k;
1090                 if ( size > 0 ) {
1091                         char    *a_flags;
1092                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1093                         if( e_flags == NULL ) {
1094                         Debug( LDAP_DEBUG_ANY,
1095                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1096                                         op->o_connid, 0, 0 );
1097                                 ber_free( ber, 1 );
1098
1099                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
1100                                 goto error_return;
1101                         }
1102                         a_flags = (char *)(e_flags + i);
1103                         memset( a_flags, 0, k );
1104                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1105                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1106                                 e_flags[i] = a_flags;
1107                                 a_flags += j;
1108                         }
1109
1110                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1111                         if ( rc == -1 ) {
1112                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1113                                         "conn %lu matched values filtering failed\n",
1114                                         op->o_connid, 0, 0 );
1115                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1116                                 send_ldap_error( op, rs, LDAP_OTHER,
1117                                         "matched values filtering error" );
1118                                 rc = rs->sr_err;
1119                                 goto error_return;
1120                         }
1121                 }
1122         }
1123
1124         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1125                 AttributeDescription *desc = a->a_desc;
1126                 int finish = 0;
1127
1128                 if ( rs->sr_attrs == NULL ) {
1129                         /* all user attrs request, skip operational attributes */
1130                         if( is_at_operational( desc->ad_type ) ) {
1131                                 continue;
1132                         }
1133
1134                 } else {
1135                         /* specific attrs requested */
1136                         if ( is_at_operational( desc->ad_type ) ) {
1137                                 /* if not explicitly requested */
1138                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1139                                         /* if not all op attrs requested, skip */
1140                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1141                                                 continue;
1142                                         /* if DSA-specific and replicating, skip */
1143                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1144                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1145                                                 continue;
1146                                 }
1147                         } else {
1148                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1149                                         continue;
1150                                 }
1151                         }
1152                 }
1153
1154                 if ( attrsonly ) {
1155                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1156                                 ACL_READ, &acl_state ) )
1157                         {
1158                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1159                                         "conn %lu access to attribute %s not allowed\n",
1160                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1161                                 continue;
1162                         }
1163
1164                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1165                                 Debug( LDAP_DEBUG_ANY,
1166                                         "send_search_entry: conn %lu  ber_printf failed\n",
1167                                         op->o_connid, 0, 0 );
1168
1169                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1170                                 send_ldap_error( op, rs, LDAP_OTHER,
1171                                         "encoding description error");
1172                                 rc = rs->sr_err;
1173                                 goto error_return;
1174                         }
1175                         finish = 1;
1176
1177                 } else {
1178                         int first = 1;
1179                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1180                                 if ( ! access_allowed( op, rs->sr_entry,
1181                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1182                                 {
1183                                         Debug( LDAP_DEBUG_ACL,
1184                                                 "send_search_entry: conn %lu "
1185                                                 "access to attribute %s, value #%d not allowed\n",
1186                                                 op->o_connid, desc->ad_cname.bv_val, i );
1187
1188                                         continue;
1189                                 }
1190
1191                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1192                                         continue;
1193                                 }
1194
1195                                 if ( first ) {
1196                                         first = 0;
1197                                         finish = 1;
1198                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1199                                                 Debug( LDAP_DEBUG_ANY,
1200                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1201                                                         op->o_connid, 0, 0 );
1202
1203                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1204                                                 send_ldap_error( op, rs, LDAP_OTHER,
1205                                                         "encoding description error");
1206                                                 rc = rs->sr_err;
1207                                                 goto error_return;
1208                                         }
1209                                 }
1210                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1211                                         Debug( LDAP_DEBUG_ANY,
1212                                                 "send_search_entry: conn %lu  "
1213                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1214
1215                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1216                                         send_ldap_error( op, rs, LDAP_OTHER,
1217                                                 "encoding values error" );
1218                                         rc = rs->sr_err;
1219                                         goto error_return;
1220                                 }
1221                         }
1222                 }
1223
1224                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1225                         Debug( LDAP_DEBUG_ANY,
1226                                 "send_search_entry: conn %lu ber_printf failed\n",
1227                                 op->o_connid, 0, 0 );
1228
1229                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1230                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1231                         rc = rs->sr_err;
1232                         goto error_return;
1233                 }
1234         }
1235
1236         /* NOTE: moved before overlays callback circling because
1237          * they may modify entry and other stuff in rs */
1238         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1239                 int     k = 0;
1240                 size_t  size;
1241
1242                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1243                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1244                 }
1245
1246                 size = i * sizeof(char *) + k;
1247                 if ( size > 0 ) {
1248                         char    *a_flags, **tmp;
1249
1250                         /*
1251                          * Reuse previous memory - we likely need less space
1252                          * for operational attributes
1253                          */
1254                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1255                                 op->o_tmpmemctx );
1256                         if ( tmp == NULL ) {
1257                                 Debug( LDAP_DEBUG_ANY,
1258                                         "send_search_entry: conn %lu "
1259                                         "not enough memory "
1260                                         "for matched values filtering\n",
1261                                         op->o_connid, 0, 0 );
1262                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1263                                 send_ldap_error( op, rs, LDAP_OTHER,
1264                                         "not enough memory for matched values filtering" );
1265                                 goto error_return;
1266                         }
1267                         e_flags = tmp;
1268                         a_flags = (char *)(e_flags + i);
1269                         memset( a_flags, 0, k );
1270                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1271                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1272                                 e_flags[i] = a_flags;
1273                                 a_flags += j;
1274                         }
1275                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1276
1277                         if ( rc == -1 ) {
1278                                 Debug( LDAP_DEBUG_ANY,
1279                                         "send_search_entry: conn %lu "
1280                                         "matched values filtering failed\n",
1281                                         op->o_connid, 0, 0);
1282                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1283                                 send_ldap_error( op, rs, LDAP_OTHER,
1284                                         "matched values filtering error" );
1285                                 rc = rs->sr_err;
1286                                 goto error_return;
1287                         }
1288                 }
1289         }
1290
1291         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1292                 AttributeDescription *desc = a->a_desc;
1293
1294                 if ( rs->sr_attrs == NULL ) {
1295                         /* all user attrs request, skip operational attributes */
1296                         if( is_at_operational( desc->ad_type ) ) {
1297                                 continue;
1298                         }
1299
1300                 } else {
1301                         /* specific attrs requested */
1302                         if( is_at_operational( desc->ad_type ) ) {
1303                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1304                                         !ad_inlist( desc, rs->sr_attrs ) )
1305                                 {
1306                                         continue;
1307                                 }
1308                                 /* if DSA-specific and replicating, skip */
1309                                 if ( op->o_sync != SLAP_CONTROL_NONE &&
1310                                         desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1311                                         continue;
1312                         } else {
1313                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1314                                         continue;
1315                                 }
1316                         }
1317                 }
1318
1319                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1320                         ACL_READ, &acl_state ) )
1321                 {
1322                         Debug( LDAP_DEBUG_ACL,
1323                                 "send_search_entry: conn %lu "
1324                                 "access to attribute %s not allowed\n",
1325                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1326
1327                         continue;
1328                 }
1329
1330                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1331                 if ( rc == -1 ) {
1332                         Debug( LDAP_DEBUG_ANY,
1333                                 "send_search_entry: conn %lu  "
1334                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1335
1336                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1337                         send_ldap_error( op, rs, LDAP_OTHER,
1338                                 "encoding description error" );
1339                         rc = rs->sr_err;
1340                         goto error_return;
1341                 }
1342
1343                 if ( ! attrsonly ) {
1344                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1345                                 if ( ! access_allowed( op, rs->sr_entry,
1346                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1347                                 {
1348                                         Debug( LDAP_DEBUG_ACL,
1349                                                 "send_search_entry: conn %lu "
1350                                                 "access to %s, value %d not allowed\n",
1351                                                 op->o_connid, desc->ad_cname.bv_val, i );
1352
1353                                         continue;
1354                                 }
1355
1356                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1357                                         continue;
1358                                 }
1359
1360                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1361                                         Debug( LDAP_DEBUG_ANY,
1362                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1363                                                 op->o_connid, 0, 0 );
1364
1365                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1366                                         send_ldap_error( op, rs, LDAP_OTHER,
1367                                                 "encoding values error" );
1368                                         rc = rs->sr_err;
1369                                         goto error_return;
1370                                 }
1371                         }
1372                 }
1373
1374                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1375                         Debug( LDAP_DEBUG_ANY,
1376                                 "send_search_entry: conn %lu  ber_printf failed\n",
1377                                 op->o_connid, 0, 0 );
1378
1379                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1380                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1381                         rc = rs->sr_err;
1382                         goto error_return;
1383                 }
1384         }
1385
1386         /* free e_flags */
1387         if ( e_flags ) {
1388                 slap_sl_free( e_flags, op->o_tmpmemctx );
1389                 e_flags = NULL;
1390         }
1391
1392         rc = ber_printf( ber, /*{{*/ "}N}" );
1393
1394         if( rc != -1 ) {
1395                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1396         }
1397
1398         if( rc != -1 ) {
1399 #ifdef LDAP_CONNECTIONLESS
1400                 if( op->o_conn && op->o_conn->c_is_udp ) {
1401                         if ( op->o_protocol != LDAP_VERSION2 ) {
1402                                 rc = ber_printf( ber, /*{*/ "N}" );
1403                         }
1404                 } else
1405 #endif
1406                 if ( op->o_res_ber == NULL ) {
1407                         rc = ber_printf( ber, /*{*/ "N}" );
1408                 }
1409         }
1410
1411         if ( rc == -1 ) {
1412                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1413
1414                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1415                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1416                 rc = rs->sr_err;
1417                 goto error_return;
1418         }
1419
1420         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1421             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1422
1423         rs_flush_entry( op, rs, NULL );
1424
1425         if ( op->o_res_ber == NULL ) {
1426                 bytes = send_ldap_ber( op, ber );
1427                 ber_free_buf( ber );
1428
1429                 if ( bytes < 0 ) {
1430                         Debug( LDAP_DEBUG_ANY,
1431                                 "send_search_entry: conn %lu  ber write failed.\n",
1432                                 op->o_connid, 0, 0 );
1433
1434                         rc = LDAP_UNAVAILABLE;
1435                         goto error_return;
1436                 }
1437                 rs->sr_nentries++;
1438
1439                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1440                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1441                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1442                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1443                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1444         }
1445
1446         Debug( LDAP_DEBUG_TRACE,
1447                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1448
1449         rc = LDAP_SUCCESS;
1450
1451 error_return:;
1452         if ( op->o_callback ) {
1453                 (void)slap_cleanup_play( op, rs );
1454         }
1455
1456         if ( e_flags ) {
1457                 slap_sl_free( e_flags, op->o_tmpmemctx );
1458         }
1459
1460         /* FIXME: Can break if rs now contains an extended response */
1461         if ( rs->sr_operational_attrs ) {
1462                 attrs_free( rs->sr_operational_attrs );
1463                 rs->sr_operational_attrs = NULL;
1464         }
1465         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1466
1467         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1468                 rs_flush_entry( op, rs, NULL );
1469         } else {
1470                 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
1471         }
1472
1473         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1474                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1475                 if ( rs->sr_ctrls ) {
1476                         slap_free_ctrls( op, rs->sr_ctrls );
1477                         rs->sr_ctrls = NULL;
1478                 }
1479         }
1480
1481         return( rc );
1482 }
1483
1484 int
1485 slap_send_search_reference( Operation *op, SlapReply *rs )
1486 {
1487         BerElementBuffer berbuf;
1488         BerElement      *ber = (BerElement *) &berbuf;
1489         int rc = 0;
1490         int bytes;
1491         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1492
1493         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1494         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1495
1496         rs->sr_type = REP_SEARCHREF;
1497         if ( op->o_callback ) {
1498                 rc = slap_response_play( op, rs );
1499                 if ( rc != SLAP_CB_CONTINUE ) {
1500                         goto rel;
1501                 }
1502         }
1503
1504         Debug( LDAP_DEBUG_TRACE,
1505                 "=> send_search_reference: dn=\"%s\"\n",
1506                 edn, 0, 0 );
1507
1508         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1509                 ad_entry, NULL, ACL_READ, NULL ) )
1510         {
1511                 Debug( LDAP_DEBUG_ACL,
1512                         "send_search_reference: access to entry not allowed\n",
1513                     0, 0, 0 );
1514                 rc = 1;
1515                 goto rel;
1516         }
1517
1518         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1519                 ad_ref, NULL, ACL_READ, NULL ) )
1520         {
1521                 Debug( LDAP_DEBUG_ACL,
1522                         "send_search_reference: access "
1523                         "to reference not allowed\n",
1524                     0, 0, 0 );
1525                 rc = 1;
1526                 goto rel;
1527         }
1528
1529         if( op->o_domain_scope ) {
1530                 Debug( LDAP_DEBUG_ANY,
1531                         "send_search_reference: domainScope control in (%s)\n",
1532                         edn, 0, 0 );
1533                 rc = 0;
1534                 goto rel;
1535         }
1536
1537         if( rs->sr_ref == NULL ) {
1538                 Debug( LDAP_DEBUG_ANY,
1539                         "send_search_reference: null ref in (%s)\n",
1540                         edn, 0, 0 );
1541                 rc = 1;
1542                 goto rel;
1543         }
1544
1545         if( op->o_protocol < LDAP_VERSION3 ) {
1546                 rc = 0;
1547                 /* save the references for the result */
1548                 if( rs->sr_ref[0].bv_val != NULL ) {
1549                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1550                                 rc = LDAP_OTHER;
1551                 }
1552                 goto rel;
1553         }
1554
1555 #ifdef LDAP_CONNECTIONLESS
1556         if( op->o_conn && op->o_conn->c_is_udp ) {
1557                 ber = op->o_res_ber;
1558         } else
1559 #endif
1560         {
1561                 ber_init_w_nullc( ber, LBER_USE_DER );
1562                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1563         }
1564
1565         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1566                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1567
1568         if( rc != -1 ) {
1569                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1570         }
1571
1572         if( rc != -1 ) {
1573                 rc = ber_printf( ber, /*"{"*/ "N}" );
1574         }
1575
1576         if ( rc == -1 ) {
1577                 Debug( LDAP_DEBUG_ANY,
1578                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1579
1580 #ifdef LDAP_CONNECTIONLESS
1581                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1582 #endif
1583                 ber_free_buf( ber );
1584                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1585                 goto rel;
1586         }
1587
1588         rc = 0;
1589         rs_flush_entry( op, rs, NULL );
1590
1591 #ifdef LDAP_CONNECTIONLESS
1592         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1593 #endif
1594         bytes = send_ldap_ber( op, ber );
1595         ber_free_buf( ber );
1596
1597         if ( bytes < 0 ) {
1598                 rc = LDAP_UNAVAILABLE;
1599         } else {
1600                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1601                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1602                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1603                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1604                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1605         }
1606 #ifdef LDAP_CONNECTIONLESS
1607         }
1608 #endif
1609         if ( rs->sr_ref != NULL ) {
1610                 int     r;
1611
1612                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1613                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1614                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1615                                 0, 0 );
1616                 }
1617
1618         } else {
1619                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1620                         op->o_log_prefix, 0, 0, 0, 0 );
1621         }
1622
1623         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1624
1625         if ( 0 ) {
1626 rel:
1627             rs_flush_entry( op, rs, NULL );
1628         }
1629
1630         if ( op->o_callback ) {
1631                 (void)slap_cleanup_play( op, rs );
1632         }
1633
1634         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1635                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1636                 if ( rs->sr_ctrls ) {
1637                         slap_free_ctrls( op, rs->sr_ctrls );
1638                         rs->sr_ctrls = NULL;
1639                 }
1640         }
1641
1642         return rc;
1643 }
1644
1645 int
1646 str2result(
1647     char        *s,
1648     int         *code,
1649     char        **matched,
1650     char        **info )
1651 {
1652         int     rc;
1653         char    *c;
1654
1655         *code = LDAP_SUCCESS;
1656         *matched = NULL;
1657         *info = NULL;
1658
1659         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1660                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1661                     s, 0, 0 );
1662
1663                 return( -1 );
1664         }
1665
1666         rc = 0;
1667         while ( (s = strchr( s, '\n' )) != NULL ) {
1668                 *s++ = '\0';
1669                 if ( *s == '\0' ) {
1670                         break;
1671                 }
1672                 if ( (c = strchr( s, ':' )) != NULL ) {
1673                         c++;
1674                 }
1675
1676                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1677                         char    *next = NULL;
1678                         long    retcode;
1679
1680                         if ( c == NULL ) {
1681                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1682                                     s, 0, 0 );
1683                                 rc = -1;
1684                                 continue;
1685                         }
1686
1687                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1688                         if ( c[ 0 ] == '\0' ) {
1689                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1690                                     s, 0, 0 );
1691                                 rc = -1;
1692                                 continue;
1693                         }
1694
1695                         retcode = strtol( c, &next, 10 );
1696                         if ( next == NULL || next == c ) {
1697                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1698                                     s, 0, 0 );
1699                                 rc = -1;
1700                                 continue;
1701                         }
1702
1703                         while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
1704                                 next++;
1705                         if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
1706                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1707                                     s, 0, 0 );
1708                                 rc = -1;
1709                                 continue;
1710                         }
1711
1712                         /* FIXME: what if it's larger than max int? */
1713                         *code = (int)retcode;
1714
1715                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1716                         if ( c != NULL ) {
1717                                 *matched = c;
1718                         }
1719                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1720                         if ( c != NULL ) {
1721                                 *info = c;
1722                         }
1723                 } else {
1724                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1725                             s, 0, 0 );
1726
1727                         rc = -1;
1728                 }
1729         }
1730
1731         return( rc );
1732 }
1733
1734 int slap_read_controls(
1735         Operation *op,
1736         SlapReply *rs,
1737         Entry *e,
1738         const struct berval *oid,
1739         LDAPControl **ctrl )
1740 {
1741         int rc;
1742         struct berval bv;
1743         BerElementBuffer berbuf;
1744         BerElement *ber = (BerElement *) &berbuf;
1745         LDAPControl c;
1746         Operation myop;
1747
1748         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1749                 op->o_log_prefix, oid->bv_val, e->e_dn );
1750
1751         rs->sr_entry = e;
1752         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1753                 op->o_preread_attrs : op->o_postread_attrs;
1754
1755         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1756         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1757
1758         ber_init2( ber, &bv, LBER_USE_DER );
1759         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1760
1761         /* create new operation */
1762         myop = *op;
1763         /* FIXME: o_bd needed for ACL */
1764         myop.o_bd = op->o_bd;
1765         myop.o_res_ber = ber;
1766         myop.o_callback = NULL;
1767         myop.ors_slimit = 1;
1768         myop.ors_attrsonly = 0;
1769
1770         rc = slap_send_search_entry( &myop, rs );
1771         if( rc ) return rc;
1772
1773         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1774
1775         if( rc == -1 ) return LDAP_OTHER;
1776
1777         c.ldctl_oid = oid->bv_val;
1778         c.ldctl_iscritical = 0;
1779
1780         if ( *ctrl == NULL ) {
1781                 /* first try */
1782                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1783         } else {
1784                 /* retry: free previous try */
1785                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1786         }
1787
1788         **ctrl = c;
1789         return LDAP_SUCCESS;
1790 }
1791
1792 /* Map API errors to protocol errors... */
1793 int
1794 slap_map_api2result( SlapReply *rs )
1795 {
1796         switch(rs->sr_err) {
1797         case LDAP_SERVER_DOWN:
1798                 return LDAP_UNAVAILABLE;
1799         case LDAP_LOCAL_ERROR:
1800                 return LDAP_OTHER;
1801         case LDAP_ENCODING_ERROR:
1802         case LDAP_DECODING_ERROR:
1803                 return LDAP_PROTOCOL_ERROR;
1804         case LDAP_TIMEOUT:
1805                 return LDAP_UNAVAILABLE;
1806         case LDAP_AUTH_UNKNOWN:
1807                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1808         case LDAP_FILTER_ERROR:
1809                 rs->sr_text = "Filter error";
1810                 return LDAP_OTHER;
1811         case LDAP_USER_CANCELLED:
1812                 rs->sr_text = "User cancelled";
1813                 return LDAP_OTHER;
1814         case LDAP_PARAM_ERROR:
1815                 return LDAP_PROTOCOL_ERROR;
1816         case LDAP_NO_MEMORY:
1817                 return LDAP_OTHER;
1818         case LDAP_CONNECT_ERROR:
1819                 return LDAP_UNAVAILABLE;
1820         case LDAP_NOT_SUPPORTED:
1821                 return LDAP_UNWILLING_TO_PERFORM;
1822         case LDAP_CONTROL_NOT_FOUND:
1823                 return LDAP_PROTOCOL_ERROR;
1824         case LDAP_NO_RESULTS_RETURNED:
1825                 return LDAP_NO_SUCH_OBJECT;
1826         case LDAP_MORE_RESULTS_TO_RETURN:
1827                 rs->sr_text = "More results to return";
1828                 return LDAP_OTHER;
1829         case LDAP_CLIENT_LOOP:
1830         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1831                 return LDAP_LOOP_DETECT;
1832         default:
1833                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1834                 return rs->sr_err;
1835         }
1836 }
1837
1838
1839 slap_mask_t
1840 slap_attr_flags( AttributeName *an )
1841 {
1842         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1843
1844         if ( an == NULL ) {
1845                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1846
1847         } else {
1848                 flags |= an_find( an, slap_bv_all_operational_attrs )
1849                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1850                 flags |= an_find( an, slap_bv_all_user_attrs )
1851                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1852         }
1853
1854         return flags;
1855 }